Splat Paddlers is a multiplayer, breakout style game where the goal is to capture more blocks than your opponent(s) before the round timer reaches zero.
When a ball hits your paddle it changes to your color and can capture hidden blocks, pass through your own blocks, and convert opponents' blocks to your color. If a ball hits the sides two times it becomes a neutral ball and erases blocks.
In each corner is a pit, into which a ball can become lost. While lost in the abyss, the ball will develop mysterious properties before returning to the game.
The first player or team to win 3 rounds wins the game.
All four players are mapped to keyboard keys, but realistically only two players will be able to play on the same keyboard. To play with four players, you will need to map keyboard controls to gamepads. If you're on a mac, Enjoyable works great. I don't have experience mapping keys on other platforms, so your search is as good as mine, but I recommend putting in the effort!


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title: Lean Prover Zulip Chat Archive
permalink: 113488general/10564listoflengthnfromfinnX.html
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The archive URL format has changed. Please find this page at:
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International Distributed Physics Olympiad 2020
Due to Covid-19 regulations IPhO 2020 had to be postponed to 2021. On December 7-15 2020, Moscow Institute of Physics and Technology organized a distributed version of the competition where students participated remotely from their home countries. The competition was endorsed by the IPhO Advisory Board. More info can be found on IdPhO Official Website.
| Contestant | Country | Rank | Award |
|---|---|---|---|
| Yifei Zhang | People's Republic of China | 1 | Gold Medal |
| Rui Sun | People's Republic of China | 2 | Gold Medal |
| Shichang Li | People's Republic of China | 3 | Gold Medal |
| Yongyan Han | People's Republic of China | 4 | Gold Medal |
| Xiaoyu Ouyang | People's Republic of China | 5 | Gold Medal |
| Ivan Kharichkin | Russia | 6 | Gold Medal |
| Maksim Pokrovskii | Russia | 7 | Gold Medal |
| Tatiana Emelianova | Russia | 8 | Gold Medal |
| Alexander Zenkovich | Russia | 9 | Gold Medal |
| Ivan Russkikh | Russia | 10 | Gold Medal |
| Artashes Gyoletsyan | Armenia | 11 | Gold Medal |
| Wilsen Chandra Putra | Indonesia | 12 | Gold Medal |
| Peter Addison Sadhani | Indonesia | 13 | Gold Medal |
| Antonia Alma Ghita | Romania | 14 | Gold Medal |
| Jiatao Jerry Han | Singapore | 15 | Gold Medal |
| Yang Shao | Singapore | 16 | Gold Medal |
| Eu-Shaun Leong | Singapore | 17 | Gold Medal |
| Viktor Fukala | Czech Republic | 18 | Silver Medal |
| Tomasz Ślusarczyk | Poland | 19 | Silver Medal |
| Wald Almog | Israel | 20 | Silver Medal |
| Vaibhav Raj | India | 21 | Silver Medal |
| Ronald Doboš | Slovakia | 22 | Silver Medal |
| Timothy Ho Li Xiong | Singapore | 23 | Silver Medal |
| Andrii Zahorodnii | Ukraine | 24 | Silver Medal |
| Sze Chun Lau | Hong Kong | 25 | Silver Medal |
| Dušan Beguš | Serbia | 26 | Silver Medal |
| Edward Yanyang Xu | Hong Kong | 27 | Silver Medal |
| Khac Hai Long Nguyen | Vietnam | 28 | Silver Medal |
| Bernard Faulend | Croatia | 29 | Silver Medal |
| Bayram Alp Şahin | Turkey | 30 | Silver Medal |
| Konstantin Dukach | Estonia | 31 | Silver Medal |
| Dias Davi Maciel | Brazil | 32 | Silver Medal |
| Shuhao Tian | Singapore | 33 | Silver Medal |
| Eduard-Florin Burlacu | Romania | 34 | Silver Medal |
| Ngo Hoang Duong Vu | Vietnam | 35 | Silver Medal |
| George Cristian Ardeleanu | Romania | 36 | Silver Medal |
| Jaroslav Herman | Czech Republic | 37 | Silver Medal |
| Rassul Magauin | Kazakhstan | 38 | Silver Medal |
| George Chiriac | Romania | 39 | Silver Medal |
| Oleksii Ihnatenko | Ukraine | 40 | Silver Medal |
| Bastos de Almeida Alexandre Silva | Brazil | 41 | Silver Medal |
| Simon Bukovšek | Slovenia | 42 | Silver Medal |
| Claudiu-Mihai Cotirlan | Romania | 43 | Silver Medal |
| Kaarel Kivisalu | Estonia | 44 | Silver Medal |
| Daler Pirov | Tajikistan | 45 | Silver Medal |
| Bar Hillel Lior | Israel | 46 | Silver Medal |
| Minh Hoang Le | Vietnam | 47 | Silver Medal |
| Jozef Csipes | Slovakia | 48 | Silver Medal |
| Dao Cong Minh Trang | Vietnam | 49 | Silver Medal |
| Yunus Emre Parmaksız | Turkey | 50 | Silver Medal |
| Öykü Sıla Güner | Turkey | 51 | Silver Medal |
| Lopes Ponciano Lima Matheus | Brazil | 52 | Silver Medal |
| Rodrigues Vinícius Ferreira | Brazil | 53 | Silver Medal |
| Rauan Kaldybayev | Kazakhstan | 54 | Silver Medal |
| Anton Draganchuk | Kazakhstan | 55 | Silver Medal |
| Bogdan Rajkov | Serbia | 56 | Bronze Medal |
| Schwierz Ory | Israel | 57 | Bronze Medal |
| Wai Ching Choi | Hong Kong | 58 | Bronze Medal |
| Lugas Firdinand Hamdi | Indonesia | 59 | Bronze Medal |
| Alper Tezcan | Turkey | 60 | Bronze Medal |
| Janko Vrcek | Croatia | 61 | Bronze Medal |
| Martin Schmied | Czech Republic | 62 | Bronze Medal |
| Le Duc Hoang Nguyen | Vietnam | 63 | Bronze Medal |
| Grgur Premec | Croatia | 64 | Bronze Medal |
| Jarl Patrick Paide | Estonia | 65 | Bronze Medal |
| Chon Hei Lo | Macau | 66 | Bronze Medal |
| Pavol Pivko | Slovakia | 67 | Bronze Medal |
| Dinmukhamed Rakhimzhanov | Kazakhstan | 68 | Bronze Medal |
| George Dzadzamia | Georgia | 69 | Bronze Medal |
| Rail Xashayev | Uzbekistan | 70 | Bronze Medal |
| Franklin Hor Chung Yeung | Macau | 71 | Bronze Medal |
| Rashedul Islam | Bangladesh | 72 | Bronze Medal |
| Hakob Chakhoyan | Armenia | 73 | Bronze Medal |
| Marius Frija | Moldova | 74 | Bronze Medal |
| Dušan Subotić | Montenegro | 75 | Bronze Medal |
| Kristjan-Erik Kahu | Estonia | 76 | Bronze Medal |
| Ruben Karakhanyan | Armenia | 77 | Bronze Medal |
| Lennart Küssner | Sweden | 78 | Bronze Medal |
| Temirlan Ismagulov | Kazakhstan | 79 | Bronze Medal |
| Hendrik Vija | Estonia | 80 | Bronze Medal |
| Imtiaz Tanweer Rahim | Bangladesh | 81 | Bronze Medal |
| Martim Paiva | Portugal | 82 | Bronze Medal |
| Hynek Jakeš | Czech Republic | 83 | Bronze Medal |
| Nahushtan Sagi | Israel | 84 | Bronze Medal |
| Dominik Moos | Switzerland | 85 | Bronze Medal |
| Marko Vučić | Bosnia and Herzegovina | 86 | Bronze Medal |
| Stefan Nicov | Moldova | 87 | Bronze Medal |
| M. Subhi Abo Rdan | Syria | 88 | Bronze Medal |
| Murad Bashirov | Azerbaijan | 89 | Bronze Medal |
| Karel Chwistek | Czech Republic | 90 | Bronze Medal |
| Ian Seo Takose | Brazil | 91 | Bronze Medal |
| Ricardo Skewes-Zorrilla | Mexico | 92 | Bronze Medal |
| Nikoloz Nikuradze | Georgia | 93 | Bronze Medal |
| Omar Bourhani | Syria | 94 | Bronze Medal |
| Sergej Krčmar | Bosnia and Herzegovina | 95 | Bronze Medal |
| Lev Podbregar | Slovenia | 96 | Bronze Medal |
| Luka Kirtadze | Georgia | 97 | Bronze Medal |
| Gabriel Almeida | Portugal | 98 | Bronze Medal |
| Nuno Carneiro | Portugal | 99 | Bronze Medal |
| Abdurahmon Abdukhamidov | Tajikistan | 100 | Bronze Medal |
| Abdullah Alhasni | Syria | 101 | Bronze Medal |
| Petar Samardžić | Serbia | 102 | Bronze Medal |
| Mukhammadkhuja Kamoliddinzoda | Tajikistan | 103 | Bronze Medal |
| Rolands Lopatko | Latvia | 104 | Honourable Mention |
| Petro Zarytskyi | Ukraine | 105 | Honourable Mention |
| Abdullodzhon Yusupov | Tajikistan | 106 | Honourable Mention |
| Dean Hartono | Indonesia | 107 | Honourable Mention |
| Ahmad Arsy | Indonesia | 108 | Honourable Mention |
| Chingiz Abdrazakov | Kyrgyzstan | 109 | Honourable Mention |
| Martínez Javier Sánchez-Bonilla | Spain | 110 | Honourable Mention |
| Daoud Laariara | Belgium | 111 | Honourable Mention |
| Leo Thom | Switzerland | 112 | Honourable Mention |
| Abdalazeez Jerby | Syria | 113 | Honourable Mention |
| Jan Kossacki | Poland | 114 | Honourable Mention |
| Jakub Lewandowski | Poland | 115 | Honourable Mention |
| Gabriel Rouxinol | Portugal | 116 | Honourable Mention |
| Misheel Otgonbayar | Mongolia | 117 | Honourable Mention |
| Kushal Thaman | India | 118 | Honourable Mention |
| Fernández Javier López | Spain | 119 | Honourable Mention |
| Lennart Horn | Switzerland | 120 | Honourable Mention |
| Keren Noga | Israel | 121 | Honourable Mention |
| Loïc Nicollerat | Switzerland | 122 | Honourable Mention |
| Eser İlke Genç | Turkey | 123 | Honourable Mention |
| Sardor Boboshov | Uzbekistan | 124 | Honourable Mention |
| Siraj Yahyazade | Azerbaijan | 125 | Honourable Mention |
| Viesturs Spūlis | Latvia | 126 | Honourable Mention |
| Petr Ermolaev | Switzerland | 127 | Honourable Mention |
| Shofar Sno | Suriname | 128 | Honourable Mention |
| Allan Guo | Hong Kong | 129 | Honourable Mention |
| Yakhyo Shamsiev | Tajikistan | 130 | Honourable Mention |
| Golam Ishtiak | Bangladesh | 131 | Honourable Mention |
| Luis Eduardo Ayala-Duarte | Mexico | 132 | Honourable Mention |
| Ayhan Suleymanzade | Azerbaijan | 133 | Honourable Mention |
| Miłosz Matraszek | Poland | 134 | Honourable Mention |
| Bilguun Batbayar | Mongolia | 135 | Honourable Mention |
| Azizbek Tursunov | Uzbekistan | 136 | Honourable Mention |
| Kwee Jeffrey Hartanto | Hong Kong | 137 | Honourable Mention |
| Luka Kopadze | Georgia | 138 | Honourable Mention |
| Vladimir Purice | Moldova | 139 | Honourable Mention |
| Vendrell Víctor Conchello | Spain | 140 | Honourable Mention |
| Lupon Javier Ruiz | Spain | 141 | Honourable Mention |
Results may be incomplete and may include mistakes.
Please send relevant information to the webmaster:
<EMAIL_ADDRESS>If you're a participant you can send a personal page URL to be attached to your name.
If you're a participant you can send a personal page URL to be attached to your name.


Wrist injuries are common but curable injuries. Don't rush things. Remember the RICE method [REST ICE COMPRESS ELEVATE] Make sure you warm up before the stretches and strengthening excersizes. Remember, Temper enthusiasm with patience


BBQ Cake
| Ingredients |
Amount |
| Eggs |
8 |
| Flour |
8 cups |
| Butter |
1 pound |
| Salt |
2 tbs |
| BBQ Sauce |
4 cup |
Instructions
- Preheat oven to 300 degrees fahrenheit
- Add egg, flour, butter, salt, and bbq sauce into a bowl and mix untill fully blended
- Pour entire mixture into a cake tin and place in the oven
- Bake for 45 minutes
- Remove from oven and let stand for 15 minutes


About Lua
TL;DR
Lua is dynamic language, comparable to JavaScript, Ruby, Python, Scheme, etc.
- Fast: Lua is faster than most dynamic languages; LuaJIT is comparable to C/C++
- Expressive and easy to learn — you can pick up the basics in an hour or two
- One simple, powerful data structure
- Consistent rules of lexical scoping (better than JavaScript…)
- Benefits of functional programming (first-class, higher-order functions, closures, coroutines, prototype inheritance, etc.) without all the silly parentheses)
- Garbage collection
- Small, easy to embed, with permissive MIT license; plus the LuaJIT FFI makes it even easier to interact with C libraries
- Portable (Windows, Linux, OSX, Android, iOS (no JIT), Xbox, RPi, and more…
However:
- Fewer libraries than languages like Perl and Python
- No built-in support for multi-threading
- Arrays count from 1
Dynamic
Lua is dynamic language, comparable to JavaScript, Ruby, Python, Scheme, etc.
Dynamic programming language is a term used broadly in computer science to describe a class of high-level programming languages that execute at runtime many common behaviors that other languages might perform during compilation, if at all. wikipedia
For example, where a variable in C has a type bound to it which cannot change (static typing), a variable in Lua is just a name under which any type of value can be stored. (In a way, all variables in Lua behave like pointers.) More interestingly, any string of valid Lua code can be executed from within another script; opening the possibilty of generating new functions at run-time. Data structures can change size and layout during execution, and functions can be passed around just like any other object, all according to the vagaries of user input. (Some of these features are possible in C/C++ with a lot of clever coding, but the cleverer that code gets, the more it becomes like the virual machine of an interpreted langauge anyway…)
If dynamic languages are more flexible, adaptable, and extensible, why do people use static languages like C/C++/Java?
Usually the argument goes that dynamism implies less efficient performance; however through the use of just-in-time (JIT) compilation, LuaJIT can approach and sometimes even exceed the speed of C/C++! It does this by recording “traces”: converting the most heavily used (“hot”) code paths into optimized machine code, including complex traces running through different loops and function call chains.
Many of the recent innovations increasing the speed of JavaScript in modern web browsers use similar techniques as LuaJIT. An interesting, though very technical, discussion here.
Expressive
Lua began as a data-description language, and continues to benefit from a universal and flexible array/hash data structure. The syntax is largely procedural, however it supports fully functional programming features such as first-class functions, closures and coroutines, and lexically scoped upvalues (granting capabilities similar to Scheme)). It also supports various models of inheritence through a prototype inheritence chain (conceived in Self) and also used in JavaScript). The runtime is also fully re-entrant.
Documentation and Resources
Programming in Lua
This book is excellent. Get it from here:
Programming in Lua (second edition)
by Roberto Ierusalimschy
Lua.org, March 2006
ISBN 85-903798-2-5 (also available as an e-book)
Programming in Lua is also available in German, Korean, Chinese, and Japanese.
The Lua 5.1 Reference Manual
Another excellent resource. Fortunately, it is available online
Lua 5.1 Reference Manual
by R. Ierusalimschy, L. H. de Figueiredo, W. Celes
Lua.org, August 2006
ISBN 85-903798-3-3
In particular, this is the URL that should be bookmarked.
The Lua and LuaJIT mailing lists
Note that LuaJIT, and thus LuaAV, are based on Lua 5.1 syntax (with some Lua 5.2 features added), so some discussions on lua-l will not apply.
LuaJIT mailing list, and archive.


Let us quickly remind ourselves about the definition of a so-called inertial frame of reference. An inertial frame of reference in classical physics (and in special relativity as well) possesses the property that in this frame of reference a body with zero net force acting upon it does not accelerate; that is, such a body is at rest or moving at a constant velocity. If we recall the definition of Newton's first law, this is essentially its description.
An inertial frame of reference can be defined in analytical terms as a frame of reference that describes time and space homogeneously, isotropically, and in a time-independent manner.
Conceptually, the physics of a system in an inertial frame has no causes external to the system. An inertial frame of reference may also be called an inertial reference frame, inertial frame, Galilean reference frame, or inertial space.
All inertial frames are in a state of constant, rectilinear motion with respect to one another; an accelerometer moving with any of them would detect zero acceleration. Measurements in one inertial frame can be converted to measurements in another by a simple transformation (the Galilean transformation in Newtonian physics and the Lorentz transformation in special relativity). In general relativity, in any region small enough for the curvature of spacetime and tidal forces to be negligible, one can find a set of inertial frames that approximately describe that region.
In a non-inertial reference frame in classical physics and special relativity, the physics of a system vary depending on the acceleration of that frame with respect to an inertial frame, and the usual physical forces must be supplemented by fictitious forces. In contrast, systems in general relativity don't have external causes, because of the principle of geodesic motion.
In classical physics, for example, a ball dropped towards the ground does not go exactly straight down because the Earth is rotating, which means the frame of reference of an observer on Earth is not inertial. The physics must account for the Coriolis effect—in this case thought of as a force—to predict the horizontal motion. Another example of such a fictitious force associated with rotating reference frames is the centrifugal effect, or centrifugal force. We will here, in addition to the abovementioned example of the Coriolis effect study a classic case in classical mechanics, namely Focoault's pendulum.
In many of the examples studied till now we have restricted our attention to the motion of a particle (or a system of particles) as seen from an inertial frame of reference. An inertial reference frame moves at constant velocity with respect to other reference frames. We can formalize this relationship as a coordinate transformation (known as a Galilean transformation) between say two given frames, one labeled \( S_0 \) and the other one labeled \( S \). In our discussions here we will refer to the frame \( S_0 \) as the reference frame.
We could consider for example an object in a car, where the car moves with a constant velocity with respect to the system \( S_0 \). We then throw this object up in the air and study it's motion with respect to the two chosen frames. We denote the position of this object in the car relative to the car's frame as \( \boldsymbol{r}_S(t) \). We have included an explicit time dependence here. The position of the car relative to the reference frame \( S_0 \) is \( \boldsymbol{R}(t) \) and the position of the object in the car relative to \( S_0 \) is \( \boldsymbol{r}_{S_0}(t) \).
The following relations between the positions link the various variables that describe the object in the two frames $$ \boldsymbol{r}_{S_0}(t) = \boldsymbol{r}_{S}(t) + \boldsymbol{R}(t). $$
We will stay with Newtonian mechanics, meaning that we do not consider relatistic effects. This means also that the time we measure in \( S_0 \) is the same as the time we measure in \( S \). This approximation is reasonable as long as the two frames do not move very fast relative to each other.
We can then compute the time derivatives and obtain the corresponding velocities $$ \dot{\boldsymbol{r}}_{S_0}(t) = \boldsymbol{v}_{S_0}=\dot{\boldsymbol{r}}_{S} + \dot{\boldsymbol{R}}, $$
or $$ \boldsymbol{v}_{S_0}=\boldsymbol{v}_{S} + \boldsymbol{u}, $$
with \( \boldsymbol{u}=\dot{\boldsymbol{R}} \).
If our system \( S \) moves at constant velocity, we have that the accelerations in the two systems equal each other since \( \ddot{\boldsymbol{R}}=0 \) and we have $$ \boldsymbol{a}_{S_0}=\boldsymbol{a}_{S}. $$
The above equations are examples of what we call a homogeneous Galilean transformation. In an inertial frame, an object moves with constant velocity (i.e., has zero acceleration) if there are no forces acting on it. When we are not in an inertial frame, there will be spurious (or fictitious) accelerations arising from the acceleration of the reference frame. These effects can be seen in simple every-day situations such as sitting in a vehicle that is accelerating or rounding a corner. Or think of yourself sitting in a seat of an aircraft that accelerates rapidly during takeoff. You feel a force which pushes you back in the seat. Similarly, if you stand in a bus which suddenly brakes (negative acceleration), you feel a force which may make you fall forward unless you hold yourself. In these situations, loose objects will appear to accelerate relative to the observer or vehicle.
Our next step is thus to study an accelerating frame. Thereafter we will study reference frames that are rotating. This will introduce forces like the Coriolis force and the well-known centrifugal force. We will use these to study again an object which falls towards the Earth (the Earth rotates around its axis). This will lead to a correction to the object's acceleration twoards the Earth.
Finally, we bring together acceleration and rotation and end the discussion here with a classic in classical mechanics, namely Focault's pendulum.
We consider first the effect of uniformly accelerating reference frames. We will hereafter label this frame with a subscript \( S \). Assume now that this reference systems accelerates with an acceleration \( \boldsymbol{a}_{S_0} \) relative to an inertial reference frame, which we will label with a subscript \( S_0 \). The accelerating frame has a velocity \( \boldsymbol{v}_{S_0} \) with respect to the inertial frame.
The figure here
shows the relation between the two frames. The position of an object in frame \( S \) relative to \( S_0 \) is labeled as \( \boldsymbol{r}_{S_0} \). Seen from this inertial frame, an object in the accelerating frame obeys Newton's second law $$ \begin{equation} m\frac{d^2\boldsymbol{r}_{S_0}}{dt^2}=\boldsymbol{F}. \label{_auto1} \end{equation} $$
Here \( \boldsymbol{F} \) is the net force on an object in the accelerating frame seen from the inertial frame.
If we on the other hand wish to study the motion of this object (say a ball in an accelerating car) relative to the accelerating frame, we need to define its position relative to this frame. We label this position as \( \boldsymbol{r}_{S} \).
Using the definition of velocity as the time derivative of position and the standard vector addition of velocities, we can define the velocity relative to \( S_0 \) as $$ \dot{\boldsymbol{r}}_{S_0}=\dot{\boldsymbol{r}}_{S}+\boldsymbol{v}_{S_0}. $$
The left hand side in the last equation defines the object's velocity relative to the inertial frame. The right hand side says this is the object's velocity relative to the accelerating frame plus the velocity of the accelerating frame with respect to the inertial frame. If we now take the second derivative of the above equation, we have the corresponding accelerations $$ \ddot{\boldsymbol{r}}_{S_0}=\ddot{\boldsymbol{r}}_{S}+\boldsymbol{a}_{S_0}. $$
Multiplying with the mass of a given object, we can rewrite Newton's law in the accelerating frame as $$ m\ddot{\boldsymbol{r}}_{S}=\boldsymbol{F}-\boldsymbol{a}_{S_0}. $$
We see that we have again Newton's second law except that we added a correction which defines an effective acceleration compared to the equation seen in the inertial frame. We can thus continue to use Newton's law in the accelerating frame provided we correct the equation of motion with what is often called a fictitious force. This often also called an inertial force or an effective force.
Add example about pendulum in train car
If you are on Earth's surface and if your reference frame is fixed with the surface, this is an example of an accelerating frame, where the acceleration, as we will show below, is \( \Omega^2 r \), where \( r\equiv\sqrt{x^2+y^2} \), and \( \Omega \) is the angular velocity of Earth's rotation. The acceleration is inward toward the axis of rotation, so the additional contribution to the apparent acceleration of gravity is outward in the \( x-y \) plane. In contrast the usual acceleration \( \boldsymbol{g} \) is radially inward pointing toward the origin.
We will now deal with motion in a rotating frame and relate this to an inertial frame. The outcome of our derivations will be effective forces (or inertial forces) like the abovementioned acceleration (from the centrifugal force) and the Coriolis force term.
For a reference frame that rotates with respect to an inertial frame, Euler's theorem is central here. It states that the most general displacement (motion) of a rigid body with a one point fixed (we normally approximate a rigid body with a mass center) is a rotation about some fixed axis. In different words, the most general motion of any body relative to a fixed point \( O \) is a rotation abotu some axis through the same point \( O \). This means that for a specific rotation about a given point \( O \) we only to specify the direction of the axis about which the rotation occurs with the corresponding angle of rotation. As we will see below, the direction of the angle of rotation can be specified by a unit vector \( \boldsymbol{e} \) in the rotating frame and the rate of rotation per unit time. The latter defines the angular velocity \( \Omega \). We will define these quantities more rigorously below. At the end of this section we will also prove Euler's theorem.
What we will show here is that Newton's laws for an object in the rotating frame is given by $$ m\ddot{\boldsymbol{r}}_{S}=\boldsymbol{F}+m\boldsymbol{r}\times\dot{\boldsymbol{\Omega}}+2m\boldsymbol{v}_S\times\boldsymbol{\Omega}+m\left(\boldsymbol{\Omega}\times\boldsymbol{r}\right)\times\boldsymbol{\Omega}. $$
The first term to the right is the force we defined in the inertial system, that is \( m\ddot{\boldsymbol{r}}_{S_0}=\boldsymbol{F} \). The second term is the angular acceleration of the rotating reference frame, a quantity which in many cases is set to zero since we assume that the angular velocity is constant as function of time. The third terms is the Coriolis force, that is $$ \boldsymbol{F}_{\mathrm{Coriolis}}=2m\boldsymbol{v}_S\times\boldsymbol{\Omega}, $$ while the last term is going to give us the standard centrifugal force $$ \boldsymbol{F}_{\mathrm{Centrifugal}}=m\left(\boldsymbol{\Omega}\times\boldsymbol{r}\right)\times\boldsymbol{\Omega}. $$
Let us derive these terms, following much of the same procedure as we did for an accelerating reference frame. The figure here (to come) shows the two reference systems \( S \) and \( S_0 \).
We define a general vector \( \boldsymbol{A} \). It could represent the position, a given force, the velocity and other quantities of interest for studies of the equations of motion.
We let this vector to be defined by three orthogonal (we assume motion in three dimensions) unit vectors \( \boldsymbol{e}_i \), that is we have $$ \boldsymbol{A}=A_1\boldsymbol{e}_1+A_2\boldsymbol{e}_2+A_3\boldsymbol{e}_3=\sum_iA_i\boldsymbol{e}_i. $$
These unit vectors are fixed in the rotating frame, that is their time derivatives are zero. However, for an observer in the inertial frame \( S_0 \), however these unit vectors are rotating and may thus have an explicit time dependence.
Since we want to find an expression for the equations of motion in the inertial frame and the rotating frame, we need expressions for the time derivative of a vector \( \boldsymbol{A} \) in these two frames. Since the unit vectors are assumed to be fixed in \( S \), we have $$ \dot{\boldsymbol{A}}_S=\sum_i\frac{dA_i}{dt}\boldsymbol{e}_i=\sum_i\dot{dA_i}\boldsymbol{e}_i. $$
In the inertial frame \( S_0 \) we have $$ \dot{\boldsymbol{A}}_{S_0}=\sum_i\dot{dA_i}\boldsymbol{e}_i+\sum_i A_i\left(\dot{\boldsymbol{e}}_i\right)_{S_0}. $$
We will show below that $$ \left(\dot{\boldsymbol{e}}_i\right)_{S_0}=\Omega\times\boldsymbol{e}_i, $$
where \( \Omega \) is the angular velocity (to be derived below). This means we can write the derivative of an arbitrary vector \( \boldsymbol{A} \) in the inertial frame \( S_0 \) as (the vector is defined in the rotating frame), $$ \dot{\boldsymbol{A}}_{S_0}=\sum_i\dot{dA_i}\boldsymbol{e}_i+\sum_i A_i\left(\dot{\boldsymbol{e}}_i\right)_{S_0}=\dot{\boldsymbol{A}}_S+\sum_i A_i(\Omega\times\boldsymbol{e}_i)=\dot{\boldsymbol{A}}_S+\boldsymbol{\Omega}\times\boldsymbol{A}. $$
This is a very useful relation which relates the derivative of any vector \( \boldsymbol{A} \) measured in the inertial frame \( S_0 \) to the correspoding derivative in a rotating frame \( S \).
If we now let \( \boldsymbol{A} \) be the position and the velocity vectors, we can derive the equations of motion in the rotating frame in terms of the same equations of motion in the inertial frame \( S_0 \).
Let us start with the position \( \boldsymbol{r} \).
We have $$ \dot{\boldsymbol{r}}_{S_0}=\dot{\boldsymbol{r}}_S+\boldsymbol{\Omega}\times\boldsymbol{r}. $$
If we define the velocities in the two frames as $$ \boldsymbol{v}_{S_0}=\dot{\boldsymbol{r}}_{S_0}, $$ and $$ \boldsymbol{v}_{S}=\dot{\boldsymbol{r}}_{S}, $$ we have then $$ \dot{\boldsymbol{r}}_{S_0}=\boldsymbol{v}_{S_0}=\boldsymbol{v}_{S}+\boldsymbol{\Omega}\times\boldsymbol{r}. $$
In order to find the equations of motion, we need the acceleration and thereby the time derivative of the last equation. The derivative of the angular velocity \( \Omega \) will turn in handy in these derivations (repeated applications of the chain rule again). The latter derivative is $$ \dot{\boldsymbol{\Omega}}_{S_0}=\dot{\boldsymbol{\Omega}}_S+\boldsymbol{\Omega}\times\boldsymbol{\Omega}, $$
which leads to (an expected result, why?) $$ \dot{\boldsymbol{\Omega}}_{S_0}=\dot{\boldsymbol{\Omega}}_S, $$
since \( \boldsymbol{\Omega}\times\boldsymbol{\Omega}=0 \).
Let us now take the second derivative with respect to time.
Using $$ \left[\frac{d^2\boldsymbol{r}}{dt^2}\right]_{S_0}=\ddot{\boldsymbol{r}}_{S_0}=\left[\frac{d}{dt}\right]_{S_0}\left[\frac{d\boldsymbol{r}}{dt}\right]_{S_0}, $$
we have $$ \ddot{\boldsymbol{r}}_{S_0}=\left[\frac{d}{dt}\right]_{S_0}\left[\boldsymbol{v}_{S}+\boldsymbol{\Omega}\times\boldsymbol{r}\right]=\left[\frac{d}{dt}\right]_{S_0}\boldsymbol{v}_{S_0}, $$
which gives $$ \ddot{\boldsymbol{r}}_{S_0}=\left[\frac{d\boldsymbol{v}_S}{dt}\right]_{S}+\dot{\boldsymbol{\Omega}}\times \boldsymbol{r}+2\boldsymbol{\Omega}\times\boldsymbol{v}_S+\boldsymbol{\Omega}\times(\boldsymbol{\Omega}\times\boldsymbol{r}). $$
Defining the accelerations \( \boldsymbol{a}_{S_0}=\ddot{\boldsymbol{r}}_{S_0}=\dot{\boldsymbol{v}}_{S_0} \) and \( \boldsymbol{a}_{S}=\dot{\boldsymbol{v}}_{S} \), we have $$ \boldsymbol{a}_{S_0}=\boldsymbol{a}_{S}+\dot{\boldsymbol{\Omega}}\times \boldsymbol{r}+2\boldsymbol{\Omega}\times\boldsymbol{v}_S+\boldsymbol{\Omega}\times(\boldsymbol{\Omega}\times\boldsymbol{r}). $$
If we now use Newton's law in the inertial frame \( \boldsymbol{F}=m\boldsymbol{a}_{S_0} \), we get the effective force in the rotating frame (multiplying by the mass \( m \)) $$ m\boldsymbol{a}_{S}=\boldsymbol{F}+m\dot{\boldsymbol{r}\times\boldsymbol{\Omega}}+2m\boldsymbol{v}_S\times\boldsymbol{\Omega}+m(\boldsymbol{\Omega}\times\boldsymbol{r})\times\boldsymbol{\Omega}, $$ which is what we wanted to demostrate. We have the Coriolis force $$ \boldsymbol{F}_{\mathrm{Coriolis}}=2m\boldsymbol{v}_S\times\boldsymbol{\Omega}, $$ while the last term is the standard centrifugal force $$ \boldsymbol{F}_{\mathrm{Centrifugal}}=m\left(\boldsymbol{\Omega}\times\boldsymbol{r}\right)\times\boldsymbol{\Omega}. $$
In our discussions below we will assume that the angular acceleration of the rotating frame is zero and focus only on the Coriolis force and the centrifugal force.
Suppose we can ignore the Coriolis force. If we focus only on the centrifugal force we have an additional force $$ \boldsymbol{F}_{\mathrm{Centrifugal}}=m\left(\boldsymbol{\Omega}\times\boldsymbol{r}\right)\times\boldsymbol{\Omega}, $$
where the term \( \boldsymbol{\Omega}\times\boldsymbol{r} \) is the radial velocity.
Consider now an object with position \( \boldsymbol{r} \) according to an observer in a frame rotating about the \( z \) axis with angular velocity \( \boldsymbol{\Omega}=\Omega\hat{z} \). To an observer in the inertial frame the vector will change even if the vector appears fixed to the rotating observer.
If \( \boldsymbol{\Omega} \) is in the \( z \) direction, the centrifugal force becomes $$ \begin{equation} \boldsymbol{F}_{\mathrm{Centrifugal}}=m\Omega^2(x\hat{x}+y\hat{y}). \label{_auto2} \end{equation} $$
The centrifugal force points outward in the \( x-y \) plane, and its magnitude is \( m\Omega^2r \), where \( r=\sqrt{x^2+y^2} \).
Continuing along these lines,
if we define a rotating frame which makes an angle \( \theta \) with the inertial frame and define the distance to an object in this frame from the origin as \( \boldsymbol{r} \), then the centrifugal force (which points outward) has as magnitude \( \Omega^2r\sin{\theta} \). Defining \( \rho=r\sin{\theta} \) and the unit vector \( \hat{\boldsymbol{\rho}} \) (see figure here)
If we now go back again to our falling object discussed in the beginning of these lectures, we need to modify for the fact that the Earth is rotating with respect to the falling object.
Seen from a rotating coordinate system we have now that the forces acting on the falling object are $$ m\ddot{\boldsymbol{r}}=\boldsymbol{F}_{\mathrm{gravity}}+\boldsymbol{F}_{\mathrm{Centrifugal}}. $$
If we define the mass of Earth as \( M \) and its radius as \( R \) and assuming that the object is close to the Earth, the gravitational force takes then well-known expression $$ \boldsymbol{F}_{\mathrm{gravity}}=-\frac{GMm}{R^2}\hat{\boldsymbol{r}}=m\boldsymbol{g}_0. $$ Inserting the expression for the centrifugal force, we can then define an effective force $$ \boldsymbol{F}_{\mathrm{eff}}=\boldsymbol{F}_{\mathrm{gravity}}+\boldsymbol{F}_{\mathrm{Centrifugal}}=m\boldsymbol{g}_0-m\Omega^2R\sin{(\theta)}\hat{\boldsymbol{\rho}}, $$ and with $$ \boldsymbol{g}_{\mathrm{eff}}=\boldsymbol{g}_0-\Omega^2R\sin{(\theta)}\hat{\boldsymbol{\rho}}, $$ we have $$ \boldsymbol{F}_{\mathrm{eff}}=m\boldsymbol{g}_{\mathrm{eff}}. $$
In the rotating coordinate system (not an inertial frame), motion is thus determined by an apparent force and one can define effective potentials. In addition to the normal gravitational potential energy, there is a contribution to the effective potential, $$ \begin{equation} \delta V_{\rm eff}(r)=-\frac{m}{2}\Omega^2r^2=-\frac{m}{2}r^2\Omega^2\sin^2\theta, \label{_auto3} \end{equation} $$
where \( \theta \) is the polar angle, measured from say the north pole. If the true gravitational force can be considered as originating from a point in Earth's center, the net effective potential for a mass \( m \) near Earth's surface could be (a distance \( h \)) $$ \begin{equation} V_{\rm eff}=mgh-m\frac{1}{2}\Omega^2(R+h)^2\sin^2\theta. \label{_auto4} \end{equation} $$
As an example, let us ask ourselves how much wider is Earth at the equator than the north-south distance between the poles assuming that the gravitational field above the surface can be approximated by that of a point mass at Earth's center.
The surface of the ocean must be at constant effective potential for a sample mass \( m \). This means that if \( h \) now refers to the height of the water $$ m g[h(\theta=\pi/2)-h(\theta=0)]=\frac{m}{2}\Omega^2(R+h)^2. $$
Because \( R>>h \), one can approximate \( R+h\rightarrow R \) on the right-hand side, thus $$ h(\theta=\pi)-h(\theta=0)=\frac{\Omega^2R^2}{2g}. $$
This come out a bit less than 11 km, or a difference of near 22 km for the diameter of the Earth in the equatorial plane compared to a diameter between the poles. In reality, the difference is approximately 41 km. The discrepancy comes from the assumption that the true gravitational force can be treated as if it came from a point at Earth's center. This would be true if the distribution of mass was radially symmetric. However, Earth's center is molten and the rotation distorts the mass distribution. Remarkably this effect nearly doubles the elliptic distortion of Earth's shape. Due to this distortion, the top of Mount Everest is not the furthest point from the center of the Earth. That belongs to the top of a volcano, Chimborazo, in Equador, which is one degree in latitude below the Equator. Chimborazo is about 8500 ft lower than Everest when measured relative to sea level, but is 7700 feet further from the center of the Earth.
The Coriolis force is given by $$ \boldsymbol{F}_{\mathrm{Coriolis}}=2m\boldsymbol{v}_S\times\boldsymbol{\Omega}, $$
It does not enter problems like the shape of the Earth above because in that case the water was not moving relative to the rotating frame.
The Coriolis force is non-zero only if \( \boldsymbol{v}_S\ne 0 \) and is directed perpendicular to both \( \boldsymbol{v}_S \) and \( \Omega \). Viewed along the direction of \( \boldsymbol{v}_S \), the Coriolis force associated with counter-clockwise rotational motion produces a deflection to the right. For clockwise rotational motion, it produces a deflection to the left.
The Coriolis force associated with Earth’s rotational motion is
responsible for the circulating or cyclonic weather patterns
associated with hurricanes and cyclones, as illustrated in the figure
here. Basically, a pressure gradient gives rise to air currents that
tend to flow from high pressure to low pressure regions. But as the
air flows toward the low pressure region, the Coriolis force deflects
the air currents away from their straight line paths. Since the
projection of \( \Omega \) perpendicular to the local tangent plane
changes sign as one crosses the equator, the direction of the cyclonic
motion (either counter-clockwise or clockwise) is different in the
Northern and Southern hemispheres.
As an example, assume a ball is dropped from a height $h=500$m above Minneapolis. Due to the Coriolis force, it is deflected by an amount \( \delta x \) and \( \delta y \). We want to find the deflection due to the Coriolis force. Here we ignore the centrifugal terms.
The equations of motion are: $$ \begin{eqnarray*} \frac{dv_x}{dt}&=&-2(\Omega_yv_z-\Omega_zv_y),\\ \frac{dv_y}{dt}&=&-2(\Omega_zv_x-\Omega_xv_z),\\ \frac{dv_z}{dt}&=&-g-2(\Omega_xv_y-\Omega_yv_x),\\ \Omega_z&=&\Omega\cos\theta,~~~\Omega_y=\Omega\sin\theta,~~~\Omega_x=0. \end{eqnarray*} $$
Here the coordinate system is \( \hat{x} \) and points east, \( \hat{y} \) points north and \( \hat{z} \) points upward.
One can now ignore all the Coriolis terms on the right-hand sides except for those with \( v_z \). The other terms will all be doubly small. One can also throw out terms with \( \Omega_x \). This gives $$ \begin{eqnarray*} \frac{dv_x}{dt}&\approx& -2\Omega v_z\sin\theta,\\ \frac{dv_y}{dt}&\approx& 0,\\ \frac{dv_z}{dt}&\approx& -g. \end{eqnarray*} $$
There will be no significant deflection in the \( y \) direction, \( \delta y=0 \), but in the \( x \) direction one can substitute \( v_z=-gt \) above, $$ \begin{eqnarray*} v_x&\approx&\int_0^t dt'~2\Omega gt'\sin\theta=\Omega gt^2\sin\theta,\\ \delta x&\approx& \int_0^t dt'~v_x(t')=\frac{g\Omega\sin\theta t^3}{3}. \end{eqnarray*} $$
One can find the deflections by using \( h=\frac{1}{2}gt^2 \), to find the time, and using the all-knowing internet to see that the latitude of Minneapolis is \( 44.6^\circ \) or \( \theta=45.4^\circ \). $$ \begin{eqnarray*} t&=&\sqrt{2h/g}=10.1~{\rm s},\\ \Omega&=&\frac{2\pi}{3600\cdot 24~{\rm s}}=7.27\times 10^{-5}~{\rm s}^{-1},\\ \delta x&=&17.4~{\rm cm}~~{\rm(east)}. \end{eqnarray*} $$
It is now simple to bring together the equations for an accelerating and rotating frame. Using our results we have the equations of motion for an object in an accelerating and rotating frame with respect to an inertial frame $$ m\ddot{\boldsymbol{r}}_{S}=\boldsymbol{F}+m\boldsymbol{r}\times\dot{\boldsymbol{\Omega}}+2m\boldsymbol{v}_S\times\boldsymbol{\Omega}+m\left(\boldsymbol{\Omega}\times\boldsymbol{r}\right)\times\boldsymbol{\Omega}-\boldsymbol{a}_{S_0}, $$ where the last term is the acceleration of the accelerating frame seen from the inertial frame.
The Foucault Pendulum is simply a regular pendulum moving in both horizontal directions, and with the Coriolis force included. It is explained at its simplest if we consider a pendulum positioned at the North pole. Foucault's experiment was actually the first laboratory demonstration that the Earth is rotating. The experiment is rather simple and many physics department worldwide have their own pendulum.
In the original experiment done in Paris in 1851, Foucault used a massive pendulum of 28kg and 67m long.
If use an inertial frame with the North pole as its origin, the Earth below the pendulum rotates with a period of 24h (actually 23h and 56min). Seen with respect to the surface of the Earth, the plane of the pendulum moves in the opposite direction of the rotation of the Earth.
If we were to perform the experiment in other places, the setup is slightly more complicated since the pendulum will then rotate with the Earth. The net effect is a slower rotation compared to North pole.
Let us look at the equations we need to solve. $$ \begin{eqnarray*} m\ddot{\boldsymbol{r}}&=&\boldsymbol{T}+m\boldsymbol{g}-2m\boldsymbol{\Omega}\times\boldsymbol{v}, \end{eqnarray*} $$
as the centrifugal force term is absorbed into the definition of \( \boldsymbol{g} \). The magnitude of the tension, \( \boldsymbol{T} \), is considered constant because we consider only small oscillations. Then \( T\approx mg \), and the components, using \( \hat{x},\hat{y} \) to correspond to east and north respectively, are $$ \begin{eqnarray*} T_x=-mgx/L,~~~T_y=-mgy/L. \end{eqnarray*} $$
If \( \Omega \) is the rotation of the earth, and if \( \theta \) is the polar angle, \( \pi \)-latitude, $$ \begin{eqnarray*} \ddot{x}&=&-gx/L+2\dot{y}\Omega_z,\\ \ddot{y}&=&-gy/L-2\dot{x}\Omega_z. \end{eqnarray*} $$
Here we have used the fact that the oscillations are sufficiently small so we can ignore \( v_z \). Using \( \Omega_0\equiv\sqrt{k/m} \), $$ \begin{eqnarray*} \ddot{x}-2\Omega_z\dot{y}+\Omega_0^2x&=&0\\ \ddot{y}+2\Omega_z\dot{x}+\Omega_0^2y&=&0, \end{eqnarray*} $$
where \( \Omega_z=|\boldsymbol{\Omega}|\cos\theta \), with \( \theta \) being the polar angle (zero at the north pole). The terms linear in time derivatives are what make life difficult. This will be solved with a trick. We will incorporate both differential equations into a single complex equation where the first/second are the real/imaginary parts. $$ \begin{eqnarray*} \eta\equiv x+iy,\\ \ddot{\eta}+2i\Omega_z\dot{\eta}+\Omega_0^2\eta&=&0. \end{eqnarray*} $$
Now, we guess at a form for the solutions, \( \eta(t)=e^{-i\alpha t} \), which turns the differential equation into $$ \begin{eqnarray*} -\alpha^2+2\Omega_z\alpha+\Omega_0^2&=&0,\\ \alpha&=&\Omega_z\pm \sqrt{\Omega_z^2+\Omega_0^2},\\ &\approx&\Omega_z\pm \Omega_0. \end{eqnarray*} $$
The solution with two arbitrary constants is then $$ \begin{eqnarray*} \eta&=&e^{-i\Omega_zt}\left[C_1e^{i\Omega_0t}+C_2e^{-i\Omega_0t}\right]. \end{eqnarray*} $$
Here, \( C_1 \) and \( C_2 \) are complex, so they actually represent four arbitrary numbers. These four numbers should be fixed by the four initial conditions, i.e. \( x(t=0), \dot{x}(t=0), y(t=0) \) and \( \dot{y}(t=0) \). With some lengthy algebra, one can rewrite the expression as $$ \begin{eqnarray*} \label{eq:precmess} \eta&=&e^{-i\Omega_zt}\left[A\cos(\Omega_0t+\phi_A)+iB\cos(\Omega_0t+\phi_B)\right]. \end{eqnarray*} $$
Here, the four coefficients are represented by the two real arbitrary real amplitudes, \( A \) and \( B \), and two arbitrary phases, \( \phi_A \) and \( \phi_B \). For an initial condition where \( y=0 \) at \( t=0 \), one can see that \( B=0 \). This then gives $$ \begin{eqnarray*} \eta(t)&=&Ae^{-i\Omega_zt}\cos(\Omega_0t+\gamma)\\ \nonumber &=&A\cos\Omega_zt\cos(\Omega_0t+\gamma)+iA\sin\Omega_zt\cos(\Omega_0t+\gamma). \end{eqnarray*} $$
Translating into \( x \) and \( y \), $$ \begin{eqnarray} x&=&A\cos\Omega_zt\cos(\Omega_0t+\gamma),\\ \nonumber y&=&A\sin\Omega_zt\cos(\Omega_0t+\gamma). \end{eqnarray} $$
Assuming the pendulum's frequency is much higher than Earth's rotational frequency, \( \Omega_0>>\Omega_z \), one can see that the plane of the pendulum simply precesses with angular velocity \( \Omega_z \). This means that in this limit the pendulum oscillates only in the \( x \)-direction with frequency many times before the phase \( \Omega_zt \) becomes noticeable. Eventually, when \( \Omega_zt=\pi/2 \), the motion is along the \( y \)-direction. If you were at the north pole, the motion would switch from the \( x \)-direction to the \( y \) direction every 6 hours. Away from the north pole, \( \Omega_z\ne|\boldsymbol{\Omega}| \) and the precession frequency is less. At the equator it does not precess at all. If one were to repeat for the solutions where \( A=0 \) and \( B\ne 0 \), one would look at motions that started in the \( y \)-direction, then precessed toward the \( -x \) direction. Linear combinations of the two sets of solutions give pendulum motions that resemble ellipses rather than simple back-and-forth motion.
this material will be added soon


Family-friendly Christmas events to be held at Historic Stewart Farm
Surrey’s landmark pioneer farm house is offering visitors a vintage Christmas experience
by Malin JordanSurrey’s Historic Stewart Farm is offering a taste of the past this holiday season by offering patrons a vintage Christmas experience.
The farm, frozen in history to circa 1900, offers visitors a look back to farm life in the Surrey area from about 120 years ago.
This year the farm is offering three events that will take visitors back to Victorian times.
—
CHRISTMAS TEA
The farm will hold a Christmas tea Dec. 1.
This tea by candlelight will offer visitors the chance to sample some sweet and savory Christmas treats, along with various teas, of course.
The event runs from 4:30 to 5:30 p.m. and costs $21.50 per person.
—
VICTORIAN CHRISTMAS EVENING
Stewart Farm will host a special Victorian Christmas evening Dec. 7.
The Christmas evening is free and runs from 3 to 7 p.m. and will present patrons with Christmas like it would have celebrated in 1910.
Visitors can drop in for an evening of music and craft making.
Patrons can make lanterns, go on carolling walks through the scenic farm grounds, and visit with Father Christmas for a photo.
—
EVENING CAROL SING
Historic Stewart Farm is also holding a Christmas carol sing-along event for ages 5+ on Dec. 14.
The farm will host two sessions, the first will run from 6 to 7 p.m., and the second will run from 7:30 to 8:30 p.m.
The after-hours event will utilize Stewart Hall for the Evening Carol Sing.
Potential carollers must register in advance by visiting surrey.ca or by calling<PHONE_NUMBER> and using the codes: 4674290 (6-7 p.m. session) or 4674291 (7:30-8:30 p.m. session).
Historic Stewart Farm is located at 13723 Crescent Road. Call<PHONE_NUMBER> for more info.


My bio previously stated:
"I am a Full Stack DevOps working with awesome companies to make the future better. I'm passionate about mathematics, and enjoy being on the bleeding edge of technology and innovation, with experience in virtual reality and analytics."
However, I am currently (2022) mostly moving ancient high traffic applications around for AbeBooks and working often in (ugh) Java.
My true love is still JavaScript, and I enjoy python.
Keywords: DevOps, React, Redux, JavaScript, Node.JS, Python, Architecture, Infrastructure, Continuous Integration, Testing, Full Stack, Backend, Frontend, API.
AWS, CloudWatch, EC2, ECS, Fargate, CloudFormation, Lambda, Python, Perl, Jira, uWSGI, NGINX, Apache, Continuous Integration, AMI instancing, Security, Cluster management, Vim, Documentation


Roman Converter
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Hekmatyar: Prosecute Those Committing Electoral Fraud
Hekmatyar said all non-biometric votes should be invalidated and the vote recount should not continue.
by Siyar SiratPresidential candidate Gulbuddin Hekmatyar at a news conference on Tuesday said that those involved in electoral fraud should be brought to court. He insisted that out of 2.5 million votes, 1.2 million are fraudulent and have been cast in favor of a certain campaign team.
Hekmatyar had a list of demands:
• All non-biometric votes should be invalidated, and 1.2 million votes are fraudulent, non-biometric and fake.”
• The 300,000 disputed votes should be taken out of the vote recount process.
• The election should be held again in areas where biometric devices were “stolen” during polling day.
• Those who are involved in electoral fraud should be held accountable.
“We approve the vote recount process with the condition that it covers all ballot boxes – not a few thousand of them,” Hekmatyar says, adding “the vote recount needs less than one week because there are less than 1.5 million votes.”
During his speech, Hekmatyar repeatedly blamed the State Builder campaign team led by President Ghani for committing “80%” of fraud in the election.
“There will be dire consequences for those who have committed fraud if the (election) commission does not pay attention to our demands...We will defend our rights,” Hekmatyar said.
He said the German firm, Demalog, which provided almost 29,000 biometric devices to the election commission, “failed” to fulfill its obligations.
“We want to bring Dermalog to court, and we want a refund of the money (paid for purchasing biometric devices for Afghan elections),” Hekmatyar said, adding that the German company was supposed to announce the election results “within hours after polling day,” but it failed.
On Peace Process
Rather than the Taliban, Hekmatyar said, there are “other hands” disrupting the peace process whenever it reaches a “sensitive” phase.
Pointing at security incidents that have hindered peace talks, Hekmatyar said the Taliban is an easy target that can be blamed for anything that happens.
He said his party will not attend the China meeting with a delegation if most of its members are “in favor of war.”
He suggested that a group be formed to make final decisions on peace-related issues.


@Documented @Target(value={FIELD,METHOD}) @Retention(value=RUNTIME) @Inherited public @interface BeanProperty
This annotation is applied to public fields and public getter/setter methods of beans.
| Modifier and Type | Optional Element and Description |
|---|---|
Class<?>[] |
beanDictionary
Bean dictionary.
|
String |
format
Specifies a String format for converting the bean property value to a formatted string.
|
String |
name
Identifies the name of the property.
|
Class<?>[] |
params
For bean properties of maps and collections, this annotation can be used to identify the class types of the
contents of the bean property object when the generic parameter types are interfaces or abstract classes.
|
String |
properties
Used to limit which child properties are rendered by the serializers.
|
Class<?> |
type
Identifies a specialized class type for the property.
|
String |
value
A synonym for
name() . |
public abstract String name
Normally, this is automatically inferred from the field name or getter method name of the property. However, this property can be used to assign a different property name from the automatically inferred value.
If the BeanContext.BEAN_beanFieldVisibility
setting on the bean context excludes this field (e.g. the
visibility is set to PUBLIC, but the field is PROTECTED), this annotation can be used to force the field to be
identified as a property.
The bean property named
The following examples show how to define dynamic bean properties.
Similar rules apply for value types and swaps. The property values optionally can be any serializable type or use swaps.
BeanContext.BEAN_ignoreUnknownBeanProperties
setting to ignore values that don't fit into existing
properties.
public abstract Class<?> type
Normally this can be inferred through reflection of the field type or getter return type.
However, you'll want to specify this value if you're parsing beans where the bean property class is an interface
or abstract class to identify the bean type to instantiate.
Otherwise, you may cause an InstantiationException
when trying to set these fields.
This property must denote a concrete bean class with a no-arg constructor.
public abstract Class<?>[] params
public abstract String properties
Can be used on any of the following bean property types:
public abstract Class<?>[] beanDictionary
The list of classes that make up the bean dictionary this bean property.
public abstract String format
Note that this is usually a one-way conversion during serialization.
During parsing, we will attempt to convert the value to the original form by using the
BeanSession.convertToType(Object, Class)
but there is no guarantee that this will succeed.
Copyright © 2018 Apache. All rights reserved.


Attention
You are presently generating a snapshot based on variables used to generate official testnet snapshot. However, because EOS ERC20 tokens are liquid on the Ethereum network, and not frozen like they will be for mainnet snapshot, your snapshot will differ from the snapshot.csv committed to the EOSIO/genesis repository. This is because ethereum balances of registrants are susceptible to change at anytime while tokens are liquid.
This interface is provided for experimentation and verification purposes only, and should not be utilized to generate a testnet genesis.json
To generate a testnet genesis.json, please click here.


--- layout: jsdoc title: "Class: BroadcastCacheUpdatePlugin" jsdocNav: - Modules: - workbox-background-sync - workbox-broadcast-cache-update - workbox-build - workbox-cache-expiration - workbox-cacheable-response - workbox-google-analytics - workbox-precaching - workbox-routing - workbox-runtime-caching - workbox-sw ---
Can be used to compare two Responses and uses the Broadcast Channel API to notify interested parties when those responses differ.
For efficiency's sake, the underlying response bodies are not compared; only specific response headers are checked.
This class is meant to be automatically invoked as a plugin to a
RequestWrapper, which
is used by the workbox-sw
and workbox-runtime-caching
modules.
If you would like to use this functionality outside of the RequestWrapper
context, please use the BroadcastCacheUpdate
class directly.
const requestWrapper = new workbox.runtimeCaching.RequestWrapper({
cacheName: 'runtime-cache',
plugins: [
new workbox.broadcastCacheUpdate.Plugin({channelName: 'cache-updates'})
]
});
const route = new workbox.routing.RegExpRoute({
match: ({url}) => url.domain === 'example.com',
handler: new workbox.runtimeCaching.StaleWhileRevalidate({requestWrapper})
});


Hello,
You have been invited to join a project team in the BC Services Card Self Service application by {{user.first_name}} {{user.last_name}}.
BC Services Card Self Service Application provides your organization an easy-access point into deploying the BC Services Card as an authentication mechanism for the your organization’s web application. This service is available to organizations that fall within the Broader Public Sector (BPS).
We use a two-stepped approach where BPS teams can experiment to produce a proof of concept BC Services Card integration within our test environment, and test using mock BC Services Card data. When ready, your team can then prepare and submit the required materials to enable a live integration with real citizen BC Services Cards.
You may wish to use our Self Assessment {{url}}/help/help-isforme to see if this is a fit for your organization.
In order to verify your access, please log in with either your mobile BC Services Card or IDIR {{url}}
Thank you.


Confirm your payment
| Card number: | {{ data['cardnumber'] }} |
| Expiry date: | {{ data['paymonth'] }}/{{ data['payyear'] }} |
| Name on card: | {{ data['cardname'] }} |
| Billing address: | {{ data['building'] }}, {{ data['building2'] }}, {{ data['town'] }}, {{ data['postcode'] }} |
| Payment for: | Apply for UK background checks |
| Total amount: | £42.00 |
| Confirmation email: | {{ data['email-check'] }} |


Open Pampas [av21], plain, in Mandoria, wilderness
Last updated Turn #81
Open Pampas [av21], plain, in Mandoria, wilderness
------------------------------------------------------------------------
30: The fog has cleared.
Routes leaving Open Pampas:
North, plain, to Open Pampas [au21], 7 days
East, plain, to Open Pampas [av22], 7 days
South, plain, to Open Pampas [aw21], 7 days
West, plain, to Open Pampas [av20], 7 days
Seen here:
Band of thieves [at4m], bandits, number: 62
Band of thieves [gf7u], bandits, number: 66
Pack of wolves [ix0d], wolves, number: 12
Pack of wolves [in9o], wolves, number: 15
Wild men [ak4x], savages, number: 44
Pack of wolves [an5l], wolves, number: 11
Pack of wolves [ji6i], wolves, number: 11
Pack of wolves [bo4q], wolves, number: 10


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Not so much the substance as the set and setting. Not so much a drug as a medicine.
Background: I am male, at the time of this experience 23 years old and weighing around 125 pounds. I take no prescription or OTC medications, but use yerba mate and Cannabis on a daily basis. I am well versed with commonly available psychedelics including mushrooms, LSD, DMT and 5-MeO-DMT, ayahuasca-type brews, Hawaiian baby woodrose seeds, Trichocereus cacti, 2C-I, MDMA and methylone, and some dissociatives like Salvia divinorum and nitrous oxide. I have experimented in the past smoking preparations of Cebil seeds (Anadenanthera colubrina var. cebil), but I had never before experimented with Yopo seeds (Anadenanthera peregrina), nor had I tried insufflated seeds of this genus in the traditional manner.
So I did some Yopo seed snuff yesterday; never thought I’d be insufflating a couple pinches of toasted and pulverized seed material, but there’s a first time for everything I suppose. To my surprise, there was no pain or burning, no nausea and vomiting; though it did make my nose very clogged. It tasted nicely nutty, and had a peanut-butter smell. The preparation did not have any basifying agent, it was just the toasted and pulverized seeds, so perhaps this is why it didn’t burn my nose. However, the effects came on quickly and noticeably.
Setting: Over for a weekly dinner party with my “second family” of friends. Most of the usual faces, a few old acquaintances and a few new ones; and a few surprises, friends just returned from vacation and my cousin among them. All people I know and love.
Mindset: I was in a very strange state of mind when entering the experience as well as in previous days. I’ve been having a feeling of spiraling downwards; exploring into the dark depths of my soul. I felt I had to make it all the way to the bottom before contemplating bubbling back up to the surface.
Partly I seemed to be channeling some very powerful cosmic energy, so high a vibration that it was like I was tripping without having taken any psychedelics. Case in point: The previous day I had smoked one hit of some very potent hash oil. For the next three hours, I tripped hard. Everything moved and waved, the room breaking up into tiles which would shift at odd angles, not in the way you’d expect them to. My thoughts were racing, looping into spirals. I felt as though I was on mushrooms, I don’t think I could have tripped this hard from the marijuana without being in a particularly receptive and open mindset to begin with.
Being around all these intense people at the dinner, who all seemed to be buzzing off this plane of reality, was affecting me like an LSD cocktail. Strange thoughts and vibrations. I spent a lot of time just sitting quietly on the couch, observing and feeling as the emotions of everyone around impinged on me through the solar plexus.
I was also struggling with a feeling of love I have for this woman. A tugging at heart and throat because I’m conflicted about how to express this love. How to let the emotion flow openly and freely, but within boundaries. Without taking it to a physical level, as she’s in a committed relationship with a man I respect and care for. The object of my desire cornered me in the kitchen; picking up empathically that I am worrying about something she asks what is wrong.
As my gaze stumbles, falling into her hypnotic eyes, “Well… I love you.”
“It’s okay to love me,” she reassures. Love is the strangest and strongest drug of all. I was glad I’d been open and honest about how I felt, and she thanked me for that.
The Experience: Jarman and I head downstairs for a little peace and quiet as I’m kind of freaking out a little. Everything is just really intense and emotional right now, but downstairs is a nice calm area to collect ourselves.
Jarman and I were discussing his experiences with smoking DMT and taking cebil and yopo snuff. This man has a deep connection with these substances. His trips are filled with entity contacts, spirits, daemons, energy healings, communication and information flooding. I trust his knowledge of these plants completely. The first time I saw him was at an outdoor festival, right after he had taken some Yopo snuff. As it kicked in, he had gone out of body and reports having entities enter his body and dance his body around. I remember it vividly, because he was dancing so wildly and crazily that he managed to distract half the crowd from watching Bass Nectar spin, instead they all formed a circle around watching him as he flailed wildly. The next day when I was introduced to him and he told me about his experience on Yopo, he literally broke down into tears recalling the wonder and awe of what he had experienced!
With his mischievously glinting eyes and fiendish smile, Jarman reminds me of nothing so much as a leprechaun.
“DMT?” I question, holding the bag. It certainly feels like DMT in my hand.
“No, it’s yopo.” He replies.
It wasn’t too long before we were taking pinches of the powder out of the bag and throwing it up our noses, a little flick of the fingers on the inhale. I’m not usually comfortable snorting anything, although I’ve taken ketamine and methylone intranasally in the past. The yopo was nothing like these chemicals, it felt totally natural and almost pleasant in taste and smell.
Although I’d just recently said I was going to take a break from psychedelic drugs, everything about taking the yopo at this moment felt intuitively right; as with the ganja the day before I was particularly open and receptive to the effects of the yopo. I could nearly anticipate what it would feel like just from having held the bag. An energy attunement, adjustment, shifting my perception so that the spiritual dimensions begin to leak through. I knew intuitively that this was exactly the experience I needed to have.
After the first pinch I noticed an immediate calming effect. All the rough and jagged edges of my thoughts and emotions were smoothed out. Visually everything gained a soft sheen like an oil painting. I became aware of the energy flowing through everything: through Jarman and I, through the ground and walls and objects around us. I could see our auras quite distinctly.
Taking a second pinch deepened the effects.
 I just close my eyes and pay attention to the feeling. Similar to DMT, a definite tryptamine buzzing and I see feathered sheets of colours flash behind closed eyes. It’s a gentle and peaceful sensation.
I am feeling pulled upstairs, so I follow my feet in that direction. I’m slightly dizzy while walking as if I had consumed a moderate amount of alcohol. When I get upstairs the living room is full of people drumming and singing with vigour and force. The energy in that room hits me like a few more shots of liquor. I am reeling, somewhat disoriented and make my way to a couch. The yopo is pulsing strongly through my veins.
Almost as soon as I have sat down Nessie looks at me from across the room and makes her way over to my side. We talk a bit, her telling me about vacationing in Latin America (she’d just gotten back earlier in the evening), and me telling her about the strange natural psychedelia I’ve been experiencing. I don’t mention anything about having taken yopo to her.
Nessie says “I can feel my hands wanting to come down onto yours…” Mine are facing palm up and she places her hands palm down on them. Nessie can pull up vast amounts of earth energy which balances nicely with all the cosmic sky energy that I pull down. This is something I’ve noticed about her before, that she channels so much earth energy that it can feel like I’m being sucked down into the ground when around her. As we sit with palms together the vibration between us grows, and grows, and grows. Wow.
Nessie places her hands, one on my back and one on my front over the heart chakra, suffusing me with a wave of earth energy. “This is your centre of grounding. You can draw energy up from the ground around you, like a blanket so you feel secure and protected.” As she speaks these words, I feel that blanket rise up around me in a spiral, soft and fuzzy. I feel strongly grounded and safe in a way I don’t normally.
She continued to open and cleanse my lower chakras. Earth energy flowed over me like soft but weighty clay.  So deeply held inside me that I didn’t even realize it was there until feeling its cathartic release. I have been repressing more than I thought, but was now letting go of some of that. Nessie finished by holding my feet, pressing them to the floor in a closing action of grounding. As we opened our eyes and smiled at each other thankfully, I could see reeling, touching her third eye where she had gotten back a surge of activation from me.
This combination of deep energy cleansing and yopo had left me feeling amazing. Totally tapped in to divine consciousness. At the centre of my being was a pulsing core of electric energy. Every minute or so, a little tingling “Zing” of energy radiates through me. Butterflies and exhilaration, like speeding over a bump in the road or being on a roller coaster just peaking over the crest of a curve. I was very alert and stimulated, but it felt like a natural energy, not speeding and jittery or fake and chemical.
The afterglow lasted a really long time. Everyone at the party was buzzing and talkative, and it wasn’t till around 2:00 AM (on a working night!) that I finally managed to extricate myself. When I got home, some three hours after taking the yopo, I smoked a little bit of potent marijuana before going to bed. The synergy was strong, seeming to bring back the warrior yopo which dominated over the gentle mary jane. There was a pressure and churning tension in my stomach.  Normally I have little or no hypnagogic imagery before sleep.
Aftereffects: After only four hours of sleep, I woke up feeling surprisingly energized. That little tingling pulse of energy from my centre was still there, not so strong as the night before but enough to let me swing through the morning with ease. The whole day after my nose ran constantly. I’m not sure if this was some kind of sinus infection from snorting the seeds, or possibly a continuing purging of negative energy. That’s the only negative aftereffect I noticed from the yopo. I would try this again, but plan to wait till everything about the situation feels right. Yopo for me was subtle but powerful, so set and setting are key to a good experience.
Experience Reports are the writings and opinions of the individual authors who submit them.
Some of the activities described are dangerous and/or illegal and none are recommended by Erowid.


{% load static %}
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This is a collection of my completed Frontend Mentor challenges. These projects have allowed me to gain confidence in my coding skills, and become faster in the process.


ASDisplayNode(LayoutTransitioning) Category Reference
| Declared in | ASDisplayNode.h |
|---|
defaultLayoutTransitionDuration
The amount of time it takes to complete the default transition animation. Default is 0.2.
@property (nonatomic, assign) NSTimeInterval defaultLayoutTransitionDuration
Declared In
ASDisplayNode.h
defaultLayoutTransitionDelay
The amount of time (measured in seconds) to wait before beginning the default transition animation. Default is 0.0.
@property (nonatomic, assign) NSTimeInterval defaultLayoutTransitionDelay
Declared In
ASDisplayNode.h
defaultLayoutTransitionOptions
A mask of options indicating how you want to perform the default transition animations. For a list of valid constants, see UIViewAnimationOptions.
@property (nonatomic, assign) UIViewAnimationOptions defaultLayoutTransitionOptions
Declared In
ASDisplayNode.h
– animateLayoutTransition:
A place to perform your animation. New nodes have been inserted here. You can also use this time to re-order the hierarchy.
- (void)animateLayoutTransition:(nonnull id<ASContextTransitioning>)context
Discussion
A place to perform your animation. New nodes have been inserted here. You can also use this time to re-order the hierarchy.
Declared In
ASDisplayNode.h
– didCompleteLayoutTransition:
A place to clean up your nodes after the transition
- (void)didCompleteLayoutTransition:(nonnull id<ASContextTransitioning>)context
Discussion
A place to clean up your nodes after the transition
Declared In
ASDisplayNode.h
– transitionLayoutWithSizeRange:animated:shouldMeasureAsync:measurementCompletion:
Transitions the current layout with a new constrained size. Must be called on main thread.
- (void)transitionLayoutWithSizeRange:(ASSizeRange)constrainedSize animated:(BOOL)animated shouldMeasureAsync:(BOOL)shouldMeasureAsync measurementCompletion:(nullable void ( ^ ) ( ))completion
Parameters
animated |
Animation is optional, but will still proceed through your |
|---|---|
shouldMeasureAsync |
Measure the layout asynchronously. |
measurementCompletion |
Optional completion block called only if a new layout is calculated. It is called on main, right after the measurement and before -animateLayoutTransition:. |
Discussion
If the passed constrainedSize is the the same as the node’s current constrained size, this method is noop. If passed YES to shouldMeasureAsync it’s guaranteed that measurement is happening on a background thread, otherwise measaurement will happen on the thread that the method was called on. The measurementCompletion callback is always called on the main thread right after the measurement and before -animateLayoutTransition:.
See Also
Declared In
ASDisplayNode.h
– transitionLayoutWithAnimation:shouldMeasureAsync:measurementCompletion:
Invalidates the current layout and begins a relayout of the node with the current constrainedSize
. Must be called on main thread.
- (void)transitionLayoutWithAnimation:(BOOL)animated shouldMeasureAsync:(BOOL)shouldMeasureAsync measurementCompletion:(nullable void ( ^ ) ( ))completion
Parameters
animated |
Animation is optional, but will still proceed through your |
|---|---|
shouldMeasureAsync |
Measure the layout asynchronously. |
measurementCompletion |
Optional completion block called only if a new layout is calculated. |
Discussion
It is called right after the measurement and before -animateLayoutTransition:.
See Also
Declared In
ASDisplayNode.h
– cancelLayoutTransition
Cancels all performing layout transitions. Can be called on any thread.
- (void)cancelLayoutTransition
Declared In
ASDisplayNode.h


{% extends 'base.html' %} {% block content %} {% include "_modal.html" %} {% load static %} Reservations in (now-2h, now + 24h)
| State | Room | Status | Start | End | Description |
|---|---|---|---|---|---|
| {{state}} | {{reservation.room}} | {{reservation.status}} | {{reservation.start_reservation}} | {{reservation.end_reservation}} | {{reservation.description}} |


A Justice Department probe into the Baltimore Police Department found that police routinely violated the constitutional rights of residents by conducting unlawful stops and using excessive force. The practices overwhelmingly affected the city's black residents in low-income neighborhoods, according to the 163-page report.
August 10, 2016
The Justice Department report found racial disparities by police in stops and searches of citizens. The probe found that black residents were more likely to be stopped and searched as pedestrians and drivers even though police were more likely to find illegal guns, illicit drugs and other contraband on white residents.
The Justice Department report also found racial disparities in arrests, with black residents accounting for 86% of all charges (where race is known) even though black residents represent only 64% of Baltimore's population. Black residents were charged with one offense for every 1.4 black residents while white residents were arrested with one offense for every 5.1 residents.
The Justice Department report found black residents were disproportionately arrested for drug possession. 89% of those arrested on drug charges were black, based on a sample of drug arrests between November 2010 and June 2015. Justice found that "BPD made 254 drug arrests for every 1,000 African-American Baltimore residents while making only 52 drug arrests per 1,000 residents of other races."


- score(String, String) - Method in class com.telesign.phoneid.PhoneId
-
Make a phoneid score request to TeleSign's public API.
- score - Variable in class com.telesign.phoneid.response.PhoneIdScoreResponse.Risk
-
- setNonce(String) - Method in class com.telesign.util.TeleSignRequest
-
Set a nonce to use for this request.
- setPostBody(String) - Method in class com.telesign.util.TeleSignRequest
-
Set the body of the request for POST requests
- setSigningMethod(AuthMethod) - Method in class com.telesign.util.TeleSignRequest
-
Set the signing method of this request.
- signature_string - Variable in class com.telesign.phoneid.response.PhoneIdContactResponse
-
- signature_string - Variable in class com.telesign.phoneid.response.PhoneIdLiveResponse
-
- signature_string - Variable in class com.telesign.phoneid.response.PhoneIdScoreResponse
-
- signature_string - Variable in class com.telesign.phoneid.response.PhoneIdStandardResponse
-
- sms - Variable in class com.telesign.phoneid.response.PhoneIdContactResponse.Numbering.CleansingNumber
-
- sms - Variable in class com.telesign.phoneid.response.PhoneIdLiveResponse.Numbering.CleansingNumber
-
- sms - Variable in class com.telesign.phoneid.response.PhoneIdScoreResponse.Numbering.CleansingNumber
-
- sms - Variable in class com.telesign.phoneid.response.PhoneIdStandardResponse.Numbering.CleansingNumber
-
- sms(String) - Method in class com.telesign.verify.Verify
-
- sms(String, String) - Method in class com.telesign.verify.Verify
-
- sms(String, String, String, String) - Method in class com.telesign.verify.Verify
-
Make a Verify SMS request to TeleSign's API.
- standard(String) - Method in class com.telesign.phoneid.PhoneId
-
Make a phoneid standard request to Telesign's public API.
- state - Variable in class com.telesign.phoneid.response.PhoneIdContactResponse.Location
-
- state - Variable in class com.telesign.phoneid.response.PhoneIdLiveResponse.Location
-
- state - Variable in class com.telesign.phoneid.response.PhoneIdStandardResponse.Location
-
- state_province - Variable in class com.telesign.phoneid.response.PhoneIdContactResponse.Contact
-
- status - Variable in class com.telesign.phoneid.response.PhoneIdContactResponse
-
- status - Variable in class com.telesign.phoneid.response.PhoneIdLiveResponse
-
- status - Variable in class com.telesign.phoneid.response.PhoneIdScoreResponse
-
- status - Variable in class com.telesign.phoneid.response.PhoneIdStandardResponse
-
- status - Variable in class com.telesign.verify.response.VerifyResponse
-
- status(String) - Method in class com.telesign.verify.Verify
-
Return the results of the post referenced by the reference_id.
- sub_resource - Variable in class com.telesign.phoneid.response.PhoneIdContactResponse
-
- sub_resource - Variable in class com.telesign.phoneid.response.PhoneIdLiveResponse
-
- sub_resource - Variable in class com.telesign.phoneid.response.PhoneIdScoreResponse
-
- sub_resource - Variable in class com.telesign.phoneid.response.PhoneIdStandardResponse
-
- sub_resource - Variable in class com.telesign.verify.response.VerifyResponse
-
- subscriber_status - Variable in class com.telesign.phoneid.response.PhoneIdLiveResponse.Live
-


Accepted Papers
Full Papers
- Andrea Arcuri. Many Independent Objective (MIO) Algorithm for Test Suite Generation
- Matteo Biagiola, Filippo Ricca and Paolo Tonella. Search Based Path and Input Data Generation for Web Application Testing
- José Campos, Yan Ge, Gordon Fraser, Marcelo Eler and Andrea Arcuri. An Empirical Evaluation of Evolutionary Algorithms for Test Suite Generation
- Byron Devries and Betty Cheng. Automatic Detection of Incomplete Requirements using Symbolic Analysis and Evolutionary Computation
- Gregory Gay. Generating Effective Test Suites by Combining Coverage Criteria
- Annibale Panichella, Fitsum Meshesha Kifetew and Paolo Tonella. LIPS vs MOSA: a Replicated Empirical Study on Automated Test Case Generation
- Christopher Steven Timperley, Susan Stepney and Claire Le Goues. An Investigation into the Use of Mutation Analysis for Automated Program Repair
Short Papers
- Vineeth Kashyap, Rebecca Swords, Eric Schulte and David Melski. MuSynth: Program Synthesis via Code Reuse and Code Manipulation
- Elias Khalil, Mustafa Assaf and Abdel Salam Sayyad. Human Resource Optimization for Bug Fixing: Balancing Short-Term and Long-Term Objectives
- Fitsum Meshesha Kifetew, Denisse Muñante, Jesús Gorroñogoitia, Alberto Siena, Angelo Susi and Anna Perini. Grammar Based Genetic Programming for Software Configuration Problem
- Jinhan Kim, Junhwi Kim and Shin Yoo. GPGPGPU: Evaluation of Parallelisation of Genetic Programming using GPGPU
- Junhwi Kim, Byeonghyeon You, Minhyuk Kwon, Phil McMinn and Shin Yoo. Evaluating CAVM: A New Search-Based Test Data Generation Tool for C
Challenge Papers
- Hussein Almulla, Alireza Salahirad and Gregory Gay. Using Search-Based Test Generation to Discover Real Faults in Guava
- Michail Basios, Lingbo Li, Fan Wu, Leslie Kanthan and Earl Barr. Optimising Darwinian Data Structures on Google Guava
- Giovani Guizzo, Mosab Bazargani, Matheus Paixao and John Drake. A Hyper-heuristic for Multi-Objective Integration and Test Ordering in Google Guava
- Seongmin Lee and Shin Yoo. Hyperheuristic Observation Based Slicing of Guava
Student Papers
- Nasser Albunian. Diversity in Search-based Unit Test Suite Generation
- Rasmus Ros, Elizabeth Bjarnason and Per Runeson. Automated Controlled Experimentation on Software by Evolutionary Bandit Optimization
Journal First
- Roberto E. Lopez-Herrejon, Lukas Linsbauer, and Alexander Egyed. A systematic mapping study of search-based software engineering for software product lines. From Information and Software Technology, 2015
- Michael Mohan, Des Greer, and Paul McMullan. Technical debt reduction using search based automated refactoring. From Journal of Systems and Software, 2016


We pride ourselves in offering specialty plants for your enjoyment. We limit our offerings and change them every month so we can offer truly unique plants to our customers.
We provide expedited shipping and if for any reason you are not satisfied with your product you may return it for a full refund.
We grow our plants in our store using a perfectly balanced blend of soil and nutrients for each type of plant. We send you detailed care instructions for the type of plant you purchase to make sure it thrives for many happy years!


A group of contest winners arrive at an island hotel to live out their dreams, only to find themselves trapped in nightmare scenarios.
At the height of the First World War, two young British soldiers must cross enemy territory and deliver a message that will stop a deadly attack on hundreds of soldiers.
The surviving Resistance faces the First Order once again as the journey of Rey, Finn and Poe Dameron continues. With the power and knowledge of generations behind them, the final battle begins.


TBD
Developed complex datasets for algorithmic trading and contributed 20+ datasets
Analyzed conference calls to predict stock movement with sentiment analysis
Developed k-means clusters groups, led to a 25% performance increase
Produced 250+ signals using deep learning datasets, adding value to firm
Devised operations for intraday strategies to reduce risk & regulate market impact
Improved value addition to trade signals using technical market indicators
Transformed signals using style factors based expose, minimizing market risk
Implemented the Johansen test for cointegration, used for equity pair trading
Worked on 2 client and 4 business development projects in a span of 2 months.
Conducted due diligence for Energy Provider to tap into Bangladesh power sector.
Performed business development in multiple sectors (Transport, Govt. & Pharma.)
Received PPO for excellent performance & significant contribution to projects


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- Type Parameters:
T
- the entity bean type
That is, it uses local in-memory sorting and filtering of a list of entity beans. It is not used in a Database query or invoke a Database query.
You can optionally specify a sortByClause and if so, the sort will always execute prior to the filter expressions. You can specify any number of filter expressions and they are effectively joined by logical "AND".
The result of the filter method will leave the original list unmodified and return a new List instance.
// get a list of entities (query execution statistics in this case)
List<MetaQueryStatistic> list =
DB.find(MetaQueryStatistic.class).findList();
long nowMinus24Hrs = System.currentTimeMillis() - 24 * (1000 * 60 * 60);
// sort and filter the list returning a filtered list...
List<MetaQueryStatistic> filteredList =
DB.filter(MetaQueryStatistic.class)
.sort("avgTimeMicros desc")
.gt("executionCount", 0)
.gt("lastQueryTime", nowMinus24Hrs)
.eq("autoTuned", true)
.maxRows(10)
.filter(list);
The propertyNames can traverse the object graph (e.g. customer.name) by using dot notation. If any point during the object graph traversal to get a property value is null then null is returned.
// examples of property names that
// ... will traverse the object graph
// ... where customer is a property of our bean
customer.name
customer.shippingAddress.city
// get a list of entities (query execution statistics)
List<Order> orders =
DB.find(Order.class).findList();
// Apply a filter...
List<Order> filteredOrders =
DB.filter(Order.class)
.startsWith("customer.name", "Rob")
.eq("customer.shippingAddress.city", "Auckland")
.filter(orders);
-
Method Summary
Modifier and TypeMethodDescriptionBetween - property between the two given values.Contains - property contains the string "value".Ends With.Equal To - property equal to the given value.Apply the filter to the list returning a new list of the matching elements in the sorted order.Greater Than or Equal to - property greater than or equal to the given value.Greater Than - property greater than the given value.Case insensitive Contains.Case insensitive Ends With.Case Insensitive Equal To.In - property has a value contained in the set of values.Is Not Null - property is not null.Is Null - property is null.istartsWith
(String propertyName, String value) Case insensitive Starts With.Less Than or Equal to - property less than or equal to the given value.Less Than - property less than the given value.maxRows
(int maxRows) Specify the maximum number of rows/elements to return.Not Equal To - property not equal to the given value.Specify a sortByClause.startsWith
(String propertyName, String value) Starts With.
-
Method Details
-
sort
Specify a sortByClause.The sort (if specified) will always execute first followed by the filter expressions.
Refer to
DB.sort(List, String)
for more detail. -
maxRows
Specify the maximum number of rows/elements to return. -
eq
Equal To - property equal to the given value. -
ne
Not Equal To - property not equal to the given value. -
ieq
Case Insensitive Equal To. -
between
Between - property between the two given values. -
gt
Greater Than - property greater than the given value. -
ge
Greater Than or Equal to - property greater than or equal to the given value. -
lt
Less Than - property less than the given value. -
le
Less Than or Equal to - property less than or equal to the given value. -
isNull
Is Null - property is null. -
isNotNull
Is Not Null - property is not null. -
startsWith
Starts With. -
istartsWith
Case insensitive Starts With. -
endsWith
Ends With. -
iendsWith
Case insensitive Ends With. -
contains
Contains - property contains the string "value". -
icontains
Case insensitive Contains. -
in
In - property has a value contained in the set of values. -
filter
Apply the filter to the list returning a new list of the matching elements in the sorted order.The sourceList will remain unmodified.
- Returns:
- Returns a new list with the sorting and filters applied.
-


I created this site using Bootstrap 4. It features a floating header and CSS gradients. It is responsive and fully accessible on a variety of user agents.
[INCLUDE IMAGE OF RESPONSIVE DESIGN]
I’m a UI developer specializing in accessibility and QA. I’m well-versed in the accessibility requirements of user interfaces and responsive web designs. I help ensure compliance with standards such as Section 508, WCAG, CVAA, and ADA throughout all stages in the software development life cycle. As a result, I’ve helped make dozens of websites, applications, and documents accessible to greater user audiences.
Here is a complex data table that I implemented as a proposed alternative for a very inaccessible & complex table that a client had. Some unique features include sortable headers and some rows with expandable content. Icons and HTML attributes indicate sort status to both visual users and visually-impaired users, respectively.
(Data has been anonymized for privacy.)
My specialty is in software design patterns and data structures. I encourage you to visit my GitHub to view some of my past Java projects.


Please be aware that not all available features are enabledin the demo version.
If you are interested in getting a complete demo of <%- projectName %> and its capabilities, contact us and schedule a demowith one of our solution experts.


Amps
Hi and welcome to the "Amps" section of our Web site. First let me say that we do not carry amp heads and speaker cabinets. We have always preferred to carry small combo guitar and bass amps—guitar amps from 10 to 120 watts and bass amps from 10 to 200 watts.
We offer amps from world famous manufacturers such as Marshall®, Kustom®, Pig Nose®, Roland® and more!
If you would like to learn more about the products we carry, please visit our "Links" page—where you will find direct hyperlinks to all our suppliers, publishers and manufacturers. See ya!
Mike Z. (Owner/Operator)


Pick up Christmas poinsettias at Orban's Nursery in Bradenton
by Zack PerryBRADENTON, Fla. — Orban's Nursery in Bradenton is a fourth-generation family business that’s been growing poinsettias for more than 70 years.
You can find these colorful holiday plants at Publix and other select stores and garden centers throughout Florida.
But if you're wanting to pick up some straight from Orban's Nursery, visit the annual Poinsettia Drive-Thru Sale on Saturday, November 30 from 9 a.m. - 3 p.m.
Come see over 200,000 blooming poinsettias before they are shipped out for the holidays.
This is a rare opportunity for the community to visit the nursery, take photos and buy holiday plants.
Check out Orban's Nursery at 9601 9th Ave NW in Bradenton.


The information contained in this report is provided in compliance with the Oklahoma Open Records Act, 51 O.S. 24A.1. Use of this information is governed by this act, as well as other applicable state and federal laws.
| Anderson v. State Of Oklahoma |
No. F-1988-1005 (Felony) Filed: 12/02/1988 Closed: 10/23/1991 Appealed from: COMANCHE County District Court |
Anderson, Clifford Eugene,
Appellant
State of Oklahoma,
Appellee
None
None
| Count | Case Number | Statute | Crime | Sentence | Judge | Reporter |
|---|---|---|---|---|---|---|
| - | CRF-1988-196 | - | Armed Robbery | 15 Years | Youngblood, Kenneth L. | |
| - | CRF-1988-196 | - | ARMED ROBBERY | 15 YEARS | Youngblood, Kenneth L. | |
| - | - | Crimes listed may include duplications |
| Date | Code | Description | Count | Party | Amount |
|---|---|---|---|---|---|
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CK REC'D FROM ASST APD LISBETH MCCARTY $0 |
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CERTIFICATE OF APPEAL ISSUED |
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PETITION IN ERROR |
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ORIGINAL RECORD (BD VOL. 61 PS W/ENCLOSED DOCKET SHEETS) |
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TRANSCRIPT PH (BD VOL. 37 PS) ORIG ONLY TRANSCRIPT (BD VOL. 71 PS W/ATTACHED STATE'S EXHIBITS 3-5) COPY TO ATTY GEN |
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APPELLANT'S MOT EXT BRIEF 10-30-89 |
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APPELALNT'S MOT EXT BRIEF 1-28-91 |
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APPELLANT'S MOT TO CHECK OUT MATERIAL-GRANTED PARKS PJ TO BE RETURNED BY 1-28-91. PH TRANS RELEASED TO APD |
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JE:ORDER-LANE, PJ; ORDER SUBMITTING CAUSES. NOT TO ATTYS |
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JE: OPINION~~~~~~~~~~~~AFFIRMED~~~~~~~~~~~~~~~JOHNSON, J; CONCUR: LANE, PJ; LUMPKIN, VPJ; BRETT, J; PARKS, J; COPIES TO ATTY GEN, DA AT LAWTON, APD, HON. KENNETH L. YOUNGBLOOD, PRESS, OPD, PARDON & PAROLE BD., NOT FOR PUB- LICATION |
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UPLOADED TO THE OKLAHOMA COURT INFORMATION SYSTEM. |


Implements the Expectation Maximisation (EM) algorithm for clustering finite gaussian mixture models for both multivariate and univariate datasets. The initialization is done by randomly selecting the samples from the dataset as the mean of the Gaussian(s). Future versions will improve the parameter initialization and execution on big datasets. The algorithm returns a set of Gaussian parameters-posterior probabilities, mean, co-variance matrices (multivariate data)/standard-deviation (for univariate datasets) and priors. Reference: Hasan Kurban, Mark Jenne, Mehmet M. Dalkilic (2016) <doi:10.1007/s41060-017-0062-1>. This work is partially supported by NCI Grant 1R01CA213466-01.
| Version: | 0.0.1 |
| Depends: | R (≥ 3.4.0) |
| Imports: | mvtnorm (≥ 1.0.7), matrixcalc (≥ 1.0.3), MASS (≥ 7.3.49) |
| Published: | 2018-09-30 |
| Author: | Sharma Parichit [aut, cre, ctb], Kurban Hasan [aut, ctb], Jenne Mark [aut, ctb], Dalkilic Mehmet [aut] |
| Maintainer: | Sharma Parichit <parishar at iu.edu> |
| BugReports: | https://github.iu.edu/parishar/DCEM/issues |
| License: | GPL-3 |
| URL: | https://github.iu.edu/parishar/DCEM |
| NeedsCompilation: | no |
| Materials: | README NEWS |
| CRAN checks: | DCEM results |
| Reference manual: | DCEM.pdf |
| Package source: | DCEM_0.0.1.tar.gz |
| Windows binaries: | r-devel: DCEM_0.0.1.zip, r-release: DCEM_0.0.1.zip, r-oldrel: DCEM_0.0.1.zip |
| OS X binaries: | r-release: DCEM_0.0.1.tgz, r-oldrel: DCEM_0.0.1.tgz |
Please use the canonical form https://CRAN.R-project.org/package=DCEM to link to this page.


--- layout: post title: "make love to the camera" comments: true ---
Jen: What kind of man would want to photograph a bunch of beautiful women without any clothes on, Roy?
Roy: The kind of man who wants to help people Jen!
The IT Crowd, S03E06, "Calendar Geeks"


Tesla unveils its first-ever electric pickup truck
by ReutersTesla Inc unveiled on Thursday its first-ever pickup truck, a long-awaited expansion to its product line-up that poses a direct challenge to Detroit automakers.
At a launch event in Los Angeles, Tesla Chief Executive Elon Musk unveiled a truck that looked like a futuristic armoured vehicle and which he claimed "won't scratch".
The truck marks the first foray by Tesla, whose Model 3 sedan is the world's top-selling battery-electric car, into pickup trucks, a market dominated by Ford Motor Co, General Motors Co and Fiat Chrysler Automobiles NV.


Climbing
Created by Andrew Consroe
Code
Demo
Climbing is so hard.
Two hours in
I don't know where to begin
I've tried everything
but this V three will still win.
I talk to no one
just try 'til it's done
my skin is peeling
but this V three has won.
I hope to return
so that I may earn
victory at last
but sadly I must go learn.
Climbing is so cool.
Four days a week
I go in the Summer
never want to get weak
the beach becomes a bummer.
Saving up for shoes
once seemed so funny
Italian leather is what I choose
and it's worth the money.
I know the movies by heart
the people and the locations
maybe one day I can take part
but it seems they all have mutations.
I'm happy with my progress
did better than last summer
dream of future success
time for school, what a bummer.
Climbing is everything.
I work at the gym
or maybe I live there
laughs to share
even when I'm grim.
Progress is slow
days seem the same
might think it's lame
but 'no' is how I grow.
Pen is mightier than sword
as brain to body
if movement is shoddy
it cannot be ignored.
Expectations are deadly
being relaxed is key
and a focus on me
is the perfect medley.
Life must make way
for climbing is there
nothing to compare
'til my last dying day.


The bins value is a comma separated list of the numeric ranges that define how to bin the data. e.g., for a set of age ranges one can specify:
bins="18,30,40,50,60,70"This results in bins of:
0-18 18-30 30-40 40-50 etc.You can also specify a range with an optional step value. For example this:
bins="18-30"Will give you the bins:
18-19 19-20 20-21 ... 29-30 30-infinityOr you can specify a step
bins="18-30:2"Will give you the bins:
18-20 20-22 22-24 ...


Two arrested as gardaí seize drugs and cash in Roscommon
by By Digital Desk staffGardaí in Roscommon are investigating a drug seizure last night.
Gardaí said that following on from investigations, warrants were obtained and searches conducted at a number of houses.
One mane, 20, and a woman, 31, arrested and drugs and money seized.
A quantity of cannabis and cocaine was seized with an estimated street value in excess of €170,000 (subject to analysis) and a large sum of cash.
The man and woman were arrested at two separate houses and are both currently detained at Roscommon Garda Station under Section 4 of the Criminal Justice Act, 1984.
Gardaí said that investigations are ongoing.
READ MORE
President Higgins: 'Game changer' Gay Byrne defined Ireland's conversation for decades


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MBA
2003 - 2005
Activities and Societies Arjay Miller Scholar
BA, Economics, East Asian Studies
1993 - 1997
Activities and Societies Arjay Miller Scholar
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I'm available during school hours while my children are at school, 9 am - 3 pm, Monday through Friday. I am also available most weekends, especially during the day.
I'm available during school hours while my children are at school, 9 am - 3 pm, Monday through Friday. I am also available most weekends, especially during the day.
I’m definitely willing to travel, and actually love traveling! I’ll admit that I have some prior commitments that prevent me from traveling every weekend, but I’m more than happy to travel every week if necessary. Do you know how much traveling would be expected of me?
I have reliable transportation. I have a well-maintained vehicle, and I am comfortable with the amount of travel required to get to your office every day.
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Dog rides trailer on I-640, shocks drivers
KNOX COUNTY, Tenn. (WVLT) -- A woman said she was shocked by what she saw on the interstate in Knoxville on November 15.
Brandi Rogers captured video of a what appeared to be an untethered dog riding on an open trailer hauled by a truck on Interstate 640.
Rogers said, "I know people think, 'Oh, that's normal,' but not on the freaking interstate. That could have potentially caused a huge problem with wrecks and possibly killed someone and/or the dog."
The Knoxville Police Department said, "That is definitely frowned upon and actually illegal."
KPD said, according to paragraph B of Sec. 5-15, "No person shall transport any animal in an open truck without adequate psychical restraint which will prevent the animal from hanging itself."
"I don't think that," the KPD spokesperson said of the video, "could be defined as adequate physical restraint."
As for punishment, KPD said something like this would most likely warrant a citation, but not an arrest.