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Steven Anthony Go
Student
Education
Seminars Attended
Research
Personal Background
References
Steven Anthony Go
<EMAIL_ADDRESS>#35 Espeleta St., Cebu City, Philippines
Education
2018-Present
DE LA SALLE UNIVERSITY
Bachelor of Science degree in Industrial Engineering
2006-2018
PAREF SPRINGDALE SCHOOL
High School Diploma, April 2018.
Awards: 2nd Honor
Seminars
November 2018
WHAT IS A MEDICAL PHYSICIST
Student Development Office, De La Salle University
Research
March 2018
Anti Bacterial Activity of Neem Leaves
Tests the effects of neem leaf extract on E. Coli bacteria.
Personal Background
Fluent in English, average in speaking in Cebuano and Filipino and learning how to speak Mandarin and Hookien
Knowledgeable in Microsoft programs and AutoCAD
Interested in video games and Table Tennis
Quiet and hard working
References
SEAN STEVEN H. GO
Student
sean_go@dlsu.edu.ph


Material Design Iconic Font
Web Application
- 3d-rotation
- airplane-off
- airplane
- album
- archive
- assignment-account
- assignment-alert
- assignment-check
- assignment-o
- assignment-return
- assignment-returned
- assignment
- attachment-alt
- attachment
- audio
- badge-check
- balance-wallet
- balance
- battery-alert
- battery-flash
- battery-unknown
- battery
- bike
- block-alt
- block
- boat
- book-image
- book
- bookmark-outline
- bookmark
- brush
- bug
- bus
- cake
- car-taxi
- car-wash
- car
- card-giftcard
- card-membership
- card-travel
- card
- case-check
- case-download
- case-play
- case
- cast-connected
- cast
- chart-donut
- chart
- city-alt
- city
- close-circle-o
- close-circle
- close
- cocktail
- code-setting
- code-smartphone
- code
- coffee
- collection-bookmark
- collection-case-play
- collection-folder-image
- collection-image-o
- collection-image
- collection-item-1
- collection-item-2
- collection-item-3
- collection-item-4
- collection-item-5
- collection-item-6
- collection-item-7
- collection-item-8
- collection-item-9-plus
- collection-item-9
- collection-item
- collection-music
- collection-pdf
- collection-plus
- collection-speaker
- collection-text
- collection-video
- compass
- cutlery
- delete
- dialpad
- dns
- drink
- edit
- email-open
- eye-off
- eye
- eyedropper
- favorite-outline
- favorite
- filter-list
- fire
- flag
- flare
- flash-auto
- flash-off
- flash
- flip
- flower-alt
- flower
- font
- fullscreen-alt
- fullscreen-exit
- fullscreen
- functions
- gas-station
- gesture
- globe-alt
- globe-lock
- globe
- graduation-cap
- group
- home
- hospital-alt
- hospital
- hotel
- hourglass-alt
- hourglass-outline
- hourglass
- http
- image-alt
- image-o
- image
- inbox
- invert-colors-off
- invert-colors
- key
- label-alt-outline
- label-alt
- label-heart
- label
- labels
- lamp
- landscape
- layers-off
- layers
- library
- link
- lock-open
- lock-outline
- lock
- mail-reply-all
- mail-reply
- mail-send
- mall
- map
- menu
- money-box
- money-off
- money
- more-vert
- more
- movie-alt
- movie
- nature-people
- nature
- navigation
- open-in-browser
- open-in-new
- palette
- parking
- pin-account
- pin-assistant
- pin-drop
- pin-help
- pin-off
- pin
- pizza
- plaster
- power-setting
- power
- puzzle-piece
- quote
- railway
- receipt
- refresh-alt
- refresh-sync-alert
- refresh-sync-off
- refresh-sync
- refresh
- roller
- ruler
- scissors
- screen-rotation-lock
- screen-rotationxxxx
- search-for
- search-in-file
- search-in-page
- search-replace
- search
- seat
- settings-square
- settings
- shape
- shield-check
- shield-security
- shopping-basket
- shopping-cart-plus
- shopping-cart
- sign-in
- sort-amount-asc
- sort-amount-desc
- sort-asc
- sort-desc
- spellcheck
- spinner
- storage
- store-24
- store
- subway
- sun
- tab-unselected
- tab
- tag-close
- tag-more
- tag
- thumb-down
- thumb-up-down
- thumb-up
- ticket-star
- toll
- toys
- traffic
- translate
- triangle-down
- triangle-up
- truck
- turning-sign
- ungroup
- wallpaper
- washing-machine
- window-maximize
- window-minimize
- window-restore
- wrench
- zoom-in
- zoom-out
Notifications
- alert-circle-o
- alert-circle
- alert-octagon
- alert-polygon
- alert-triangle
- help-outline
- help
- info-outline
- info
- notifications-active
- notifications-add
- notifications-none
- notifications-off
- notifications-paused
- notifications
Person
- account-add
- account-box-mail
- account-box-o
- account-box-phone
- account-box
- account-calendar
- account-circle
- account-o
- account
- accounts-add
- accounts-alt
- accounts-list-alt
- accounts-list
- accounts-outline
- accounts
- face
- female
- male-alt
- male-female
- male
- mood-bad
- mood
- run
- walk
File
- cloud-box
- cloud-circle
- cloud-done
- cloud-download
- cloud-off
- cloud-outline-alt
- cloud-outline
- cloud-upload
- cloud
- download
- file-plus
- file-text
- file
- folder-outline
- folder-person
- folder-star-alt
- folder-star
- folder
- gif
- upload
Editor
- border-all
- border-bottom
- border-clear
- border-color
- border-horizontal
- border-inner
- border-left
- border-outer
- border-right
- border-style
- border-top
- border-vertical
- copy
- crop
- format-align-center
- format-align-justify
- format-align-left
- format-align-right
- format-bold
- format-clear-all
- format-clear
- format-color-fill
- format-color-reset
- format-color-text
- format-indent-decrease
- format-indent-increase
- format-italic
- format-line-spacing
- format-list-bulleted
- format-list-numbered
- format-ltr
- format-rtl
- format-size
- format-strikethrough-s
- format-strikethrough
- format-subject
- format-underlined
- format-valign-bottom
- format-valign-center
- format-valign-top
- redo
- select-all
- space-bar
- text-format
- transform
- undo
- wrap-text
Comment
- comment-alert
- comment-alt-text
- comment-alt
- comment-edit
- comment-image
- comment-list
- comment-more
- comment-outline
- comment-text-alt
- comment-text
- comment-video
- comment
- comments
Form
- check-all
- check-circle-u
- check-circle
- check-square
- check
- circle-o
- circle
- dot-circle-alt
- dot-circle
- minus-circle-outline
- minus-circle
- minus-square
- minus
- plus-circle-o-duplicate
- plus-circle-o
- plus-circle
- plus-square
- plus
- square-o
- star-circle
- star-half
- star-outline
- star
Hardware
- bluetooth-connected
- bluetooth-off
- bluetooth-search
- bluetooth-setting
- bluetooth
- camera-add
- camera-alt
- camera-bw
- camera-front
- camera-mic
- camera-party-mode
- camera-rear
- camera-roll
- camera-switch
- camera
- card-alert
- card-off
- card-sd
- card-sim
- desktop-mac
- desktop-windows
- device-hub
- devices-off
- devices
- dock
- floppy
- gamepad
- gps-dot
- gps-off
- gps
- headset-mic
- headset
- input-antenna
- input-composite
- input-hdmi
- input-power
- input-svideo
- keyboard-hide
- keyboard
- laptop-chromebook
- laptop-mac
- laptop
- mic-off
- mic-outline
- mic-setting
- mic
- mouse
- network-alert
- network-locked
- network-off
- network-outline
- network-setting
- network
- phone-bluetooth
- phone-end
- phone-forwarded
- phone-in-talk
- phone-locked
- phone-missed
- phone-msg
- phone-paused
- phone-ring
- phone-setting
- phone-sip
- phone
- portable-wifi-changes
- portable-wifi-off
- portable-wifi
- radio
- reader
- remote-control-alt
- remote-control
- router
- scanner
- smartphone-android
- smartphone-download
- smartphone-erase
- smartphone-info
- smartphone-iphone
- smartphone-landscape-lock
- smartphone-landscape
- smartphone-lock
- smartphone-portrait-lock
- smartphone-ring
- smartphone-setting
- smartphone-setup
- smartphone
- speaker
- tablet-android
- tablet-mac
- tablet
- tv-alt-play
- tv-list
- tv-play
- tv
- usb
- videocam-off
- videocam-switch
- videocam
- watch
- wifi-alt-2
- wifi-alt
- wifi-info
- wifi-lock
- wifi-off
- wifi-outline
- wifi
Directional
- arrow-left-bottom
- arrow-left
- arrow-merge
- arrow-missed
- arrow-right-top
- arrow-right
- arrow-split
- arrows
- caret-down-circle
- caret-down
- caret-left-circle
- caret-left
- caret-right-circle
- caret-right
- caret-up-circle
- caret-up
- chevron-down
- chevron-left
- chevron-right
- chevron-up
- forward
- long-arrow-down
- long-arrow-left
- long-arrow-return
- long-arrow-right
- long-arrow-tab
- long-arrow-up
- rotate-ccw
- rotate-cw
- rotate-left
- rotate-right
- square-down
- square-right
- swap-alt
- swap-vertical-circle
- swap-vertical
- swap
- trending-down
- trending-flat
- trending-up
- unfold-less
- unfold-more
Map (aliases)
- zmdi-directions-bike
- zmdi-directions-boat
- zmdi-directions-bus
- zmdi-directions-car
- zmdi-directions-railway
- zmdi-directions-run
- zmdi-directions-subway
- zmdi-directions-walk
- zmdi-directions
- zmdi-layers-off
- zmdi-layers
- zmdi-local-activity
- zmdi-local-airport
- zmdi-local-atm
- zmdi-local-bar
- zmdi-local-cafe
- zmdi-local-car-wash
- zmdi-local-convenience-store
- zmdi-local-dining
- zmdi-local-drink
- zmdi-local-florist
- zmdi-local-gas-station
- zmdi-local-grocery-store
- zmdi-local-hospital
- zmdi-local-hotel
- zmdi-local-laundry-service
- zmdi-local-library
- zmdi-local-mall
- zmdi-local-movies
- zmdi-local-offer
- zmdi-local-parking
- zmdi-local-pharmacy
- zmdi-local-phone
- zmdi-local-pizza
- zmdi-local-activity
- zmdi-local-post-office
- zmdi-local-printshop
- zmdi-local-see
- zmdi-local-shipping
- zmdi-local-store
- zmdi-local-taxi
- zmdi-local-wc
- zmdi-map
- zmdi-my-location
- zmdi-nature-people
- zmdi-nature
- zmdi-navigation
- zmdi-pin-account
- zmdi-pin-assistant
- zmdi-pin-drop
- zmdi-pin-help
- zmdi-pin-off
- zmdi-pin
- zmdi-traffic
View
- apps
- grid-off
- grid
- view-agenda
- view-array
- view-carousel
- view-column
- view-comfy
- view-compact
- view-dashboard
- view-day
- view-headline
- view-list-alt
- view-list
- view-module
- view-quilt
- view-stream
- view-subtitles
- view-toc
- view-web
- view-week
- widgets
Date / Time
- alarm-check
- alarm-off
- alarm-plus
- alarm-snooze
- alarm
- calendar-alt
- calendar-check
- calendar-close
- calendar-note
- calendar
- time-countdown
- time-interval
- time-restore-setting
- time-restore
- time
- timer-off
- timer
Social
- android-alt
- android
- apple
- behance
- codepen
- dribbble
- dropbox
- evernote
- facebook-box
- github-box
- github
- google-drive
- google-earth
- google-glass
- google-maps
- google-pages
- google-play
- google-plus-box
- google-plus
- language-css3
- language-html5
- language-javascript
- language-python-alt
- language-python
- lastfm
- linkedin-box
- paypal
- pinterest-box
- polymer
- rss
- share
- stackoverflow
- steam-square
- steam
- twitter-box
- vk
- wikipedia
- windows
- 500px
- 8tracks
- amazon
- blogger
- delicious
- disqus
- flattr
- flickr
- github-alt
- google-old
- odnoklassniki
- outlook
- paypal-alt
- playstation
- skype
- slideshare
- soundcloud
- tumblr
- twitch
- vimeo
- xbox
- yahoo
- youtube-play
- youtube
Image
- aspect-ratio-alt
- aspect-ratio
- blur-circular
- blur-linear
- blur-off
- blur
- brightness-2
- brightness-3
- brightness-4
- brightness-5
- brightness-6
- brightness-7
- brightness-auto
- brightness-setting
- broken-image
- center-focus-strong
- center-focus-weak
- compare
- crop-16-9
- crop-3-2
- crop-5-4
- crop-7-5
- crop-din
- crop-free
- crop-landscape
- crop-portrait
- crop-square
- exposure-alt
- exposure
- filter-b-and-w
- filter-center-focus
- filter-frames
- filter-tilt-shift
- gradient
- grain
- graphic-eq
- hdr-off
- hdr-strong
- hdr-weak
- hdr
- iridescent
- leak-off
- leak
- looks
- loupe
- panorama-horizontal
- panorama-vertical
- panorama-wide-angle
- photo-size-select-large
- photo-size-select-small
- picture-in-picture
- slideshow
- texture
- tonality
- vignette
- wb-auto
Audio / Video
- eject-alt
- eject
- equalizer
- fast-forward
- fast-rewind
- forward-10
- forward-30
- forward-5
- hearing
- pause-circle-outline
- pause-circle
- pause
- play-circle-outline
- play-circle
- play
- playlist-audio
- playlist-plus
- repeat-one
- repeat
- replay-10
- replay-30
- replay-5
- replay
- shuffle
- skip-next
- skip-previous
- stop
- surround-sound
- tune
- volume-down
- volume-mute
- volume-off
- volume-up
Numbers
- n-1-square
- n-2-square
- n-3-square
- n-4-square
- n-5-square
- n-6-square
- neg-1
- neg-2
- plus-1
- plus-2
- sec-10
- sec-3
- zero
Other
- airline-seat-flat-angled
- airline-seat-flat
- airline-seat-individual-suite
- airline-seat-legroom-extra
- airline-seat-legroom-normal
- airline-seat-legroom-reduced
- airline-seat-recline-extra
- airline-seat-recline-normal
- airplay
- closed-caption
- confirmation-number
- developer-board
- disc-full
- explicit
- flight-land
- flight-takeoff
- flip-to-back
- flip-to-front
- group-work
- hd
- hq
- markunread-mailbox
- memory
- nfc
- play-for-work
- power-input
- present-to-all
- satellite
- tap-and-play
- vibration
- voicemail


[§195F-8] Rules. The department shall adopt rules pursuant to chapter 91 to carry out the purposes of this chapter. [L 1991, c 327, pt of §2]


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Windows 2003 Hands on Labs
Here. From Carlos Aquino: I found Windows 2003 Hands on Labs on http://www.only4gurus.com . There is three exercises about the new features coming with the Windows 2003 Server. They have a section with some documentations about it too.


UserConscience class.
More...
#import <UserConscience.h>
UserConscience class.
A class representing the visual and emotional state of the User's Conscience.
Copyright 2012 Team Axe, LLC. All rights reserved.
- Author
- Team Axe, LLC. http://www.teamaxe.org
- Date
- 02/18/2013
◆ initWithModelManager:
Dependency injection constructor to pass model.
- Parameters
-
- Returns
- id instance of UserConscience
◆ shakeConscience
Cancel all of shooken UserConscience behavior.
Implementation: Randomize the position of the conscience and the eye positions for a time.
Stop the actual consciencePosition randomization, but continue the eye randomization for a time.
◆ conscienceCollection
| - (NSMutableArray*) conscienceCollection |
|
readwritenonatomicstrong |
◆ transientMood
|
|
readwritenonatomicunsafe_unretained |
◆ userConscienceAccessories
Representation of User's Accessories.
◆ userConscienceBody
Representation of User's Conscience.
◆ userConscienceMind
Representation of User's Mental State.
◆ userConscienceView
Visual representation of User's Conscience+Accessories.
The documentation for this class was generated from the following files:
- /Users/adamaxe/Workspace/projects/teamaxe/code/moralife/Classes/Common/UserConscience.m
- /Users/adamaxe/Workspace/projects/teamaxe/code/moralife/Classes/Common/UserConscience.h


Non-inertial Frames, Translation and Rotating Coordinate Systems¶
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.
Galilean Transformations¶
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
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
or
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
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.
Accelerating Frames (No Rotation)¶
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
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
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
Multiplying with the mass of a given object, we can rewrite Newton’s law in the accelerating frame as
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
Rotating Frames¶
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
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
while the last term is going to give us the standard centrifugal force
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
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
In the inertial frame \(S_0\) we have
We will show below that
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),
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
If we define the velocities in the two frames as
and
we have then
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
which leads to (an expected result, why?)
since \(\boldsymbol{\Omega}\times\boldsymbol{\Omega}=0\).
Let us now take the second derivative with respect to time.
Using
we have
which gives
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
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 \(m\))
which is what we wanted to demostrate. We have the Coriolis force
while the last term is the standard centrifugal force
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.
Effective potential and Centrifugal force¶
Suppose we can ignore the Coriolis force. If we focus only on the centrifugal force we have an additional force
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
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)
we have the well-known expression for the centrifugal force
and with the velocity given by its magnitude \(v=\Omega\rho\) we obtain the well-known expression for the centrifugal force
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
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
Inserting the expression for the centrifugal force, we can then define an effective force
and with
we have
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,
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 \(h\))
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
Because \(R>>h\), one can approximate \(R+h\rightarrow R\) on the right-hand side, thus
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.
Coriolis Force and Falling Objects¶
The Coriolis force is given by
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:
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
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,
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 \(\theta=45.4^\circ\).
Accelerating and Rotating Frames¶
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
where the last term is the acceleration of the accelerating frame seen from the inertial frame.
The Foucault Pendulum¶
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.
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
If \(\Omega\) is the rotation of the earth, and if \(\theta\) is the polar angle, \(\pi\)-latitude,
Here we have used the fact that the oscillations are sufficiently small so we can ignore \(v_z\). Using \(\Omega_0\equiv\sqrt{k/m}\),
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.
Now, we guess at a form for the solutions, \(\eta(t)=e^{-i\alpha t}\), which turns the differential equation into
The solution with two arbitrary constants is then
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
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
Translating into \(x\) and \(y\),
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.
Euler’s Theorem from a Linear Algebra Perspective¶
this material will be added soon


Toastmasters International is a nonprofit educational organisation that helps its memebers improve skills in Communication, Public Speaking and Leadership. We hold meetings every 2 weeks for members. At the meeting a memeber will take up a role which fufils their needs be it leadership or public speaking. meetings usually last 2 hours maximum. There are 2 forms of literature which are made available to our members for leadership and for public speaking. Either one of these paths lead to the highest accolade Distinguished Toastmaster
Members interested in building their leadership skills begin with Competent Leadership. This is the core of the Leadership track. The Competent Leadership manual features 10 projects that you complete while serving in various club meeting roles. An evaluator will give you feedback on each project, helping you to improve. When you complete the manual, you are eligible for the Competent Leader award.
After earning the Competent Leadership award, you can further refine and develop more complex leadership skills by completing projects in manuals that are part of the Advanced Leader Program.
Members interested in building their public speaking and communication skills begin with Competent Communication.
The 10 speech projects in the Competent Communication manual help you develop your speaking skills one step at a time. When you finish all of the projects, you are eligible for the Competent Communicator award.
Advanced Communication TrackAfter receiving the Competent Communicator award, you can begin to develop more advanced speaking and communication skills through the Advanced Communication Series manuals. There are 15 in all, each containing five speech projects. Many of the manuals are career-oriented.
Frequently Asked Questions
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Dec 2012
St.Peterburg Speechmakers Club is officially opened with 9 founding members attending the meeting
Meeting #16 two St Petersburg Toastmasters clubs had a joint meeting. It was an enriching experience in many ways. Not only was it a chance to meet members of another club but to share best practices as well
Kirill Alesmaskin, member of the St. Petersburg speechmakers club takes 2nd place in th International Speech conference in Moscow
Jul 2016
1st social event was held, members treated themselves to a BBQ by the lake.
Aug 2016
"A young man without an ambition is an old man waiting to be" Achievement became the topic of this meeting. All of us have their own dreams and goals, which we persevere to attain, and St Petersburg Speechmakers is not an exception! Chartering the club after 1,5 years of regular meetings is our first achievement! The little surprise for everyone was handing the official Charter Member certificates and the speech from our President Tatenda Zhou about the Club's story and plans for further development.
Club President
Vice President of Education
Vice President of Public relations
Vice president of Membership
Feel free to contact any of the members with questions regarding Saint Petersburg Speechmakers club


Aquasonic 100 Ultrasound Gel
| Stock # | Quantity | Units per box | Price |
|---|---|---|---|
| USO-025 | 250ml bottle | 12 | $72.00 |
| USO-100 | 1 liter bottle | 6 | $114.00 |
| USO-500 | 5 liter jug w/ bottle | 1 | $64.00 |
Industry Standard Ultrasound Transmission Gel:
Recommended for all procedures where a viscous (thick) gel is required.
Acoustically correct for the broad range of frequencies used.
Aqueous formula will not stain clothing or damage transducers.
Hypoallergenic, bacteriostatic, non-sensitizing, non-irritating.
Recommended for all procedures where a viscous (thick) gel is required.
Acoustically correct for the broad range of frequencies used.
Aqueous formula will not stain clothing or damage transducers.
Hypoallergenic, bacteriostatic, non-sensitizing, non-irritating.


normalizeEmail function Null safety
canonicalize an email address.
options
is an Map
which defaults to
{ lowercase: true }
. With lowercase set to true, the local part of the
email address is lowercased for all domains; the hostname is always
lowercased and the local part of the email address is always lowercased
for hosts that are known to be case-insensitive (currently only GMail).
Normalization follows special rules for known providers: currently,
GMail addresses have dots removed in the local part and are stripped of
tags (e.g<EMAIL_ADDRESS>becomes<EMAIL_ADDRESS>) and all
@googlemail.com
addresses are normalized to @gmail.com
.
Implementation
String normalizeEmail(String email, [Map? options]) {
if (options == null) {
options = _default_normalize_email_options;
} else {
options = merge(options, _default_normalize_email_options);
}
if (isEmail(email) == false) {
return '';
}
List parts = email.split('@');
parts[1] = parts[1].toLowerCase();
if (options['lowercase'] == true) {
parts[0] = parts[0].toLowerCase();
}
if (parts[1] == 'gmail.com' || parts[1] == 'googlemail.com') {
if (options['lowercase'] == false) {
parts[0] = parts[0].toLowerCase();
}
parts[0] = parts[0].replaceAll('\.', '').split('+')[0];
parts[1] = 'gmail.com';
}
return parts.join('@');
}


Moore
This page contains an index of all the individuals in the database with the surname of Moore. Selecting the person’s name will take you to that person’s individual page.
| Given Name | Birth | Death | Partner | Parents |
|---|---|---|---|---|
| Albert R. | Baker, Charlotte | |||
| Anne | 1884-12-28 | Mullaly, Patrick | ||
| Anne | 1884-12-28 | Mullaly, Patrick | ||
| Elizabeth | Duff, Colin | |||
| Elsie | 1901-02-18 | Bongers, Edward Malcolm | ||
| Lilian Ann | Orr, Cecil Ashcroft | |||
| Lorna Mabel | 1917-07-25 | 2003-01-14 | Ellis, George Edward (3rd) | Moore, Milton & Beatrice M.West |
| Milton, & Beatrice M.West | ||||
| Patrick | Gray, Hazel | |||
| Robinson | Blanton, Maud Margaret | |||
| William | 1892-07-13 | 1970 | Earle, Ethel “Blanche” | |
| [Living] | Bongers, [Living] | |||
| [Living] | Kent, [Living] | |||
| [Living] | Studd, [Living] | Moore, William Earle, Ethel "Blanche" |


Core services including Logging, Deployment properties and Background thread for running frequent tasks.


Introduction to Machine learning ( CS5011 )
Programming assignment #3
Aravind S
EE14B013
14th Nov. 2016
1 Conversion
ARFF is a popular format for data storage which is compatible with many popular packages like Weka. It has 2 components, header and data.
-
The header mentions the optional name and the data type of that feature. Here, the first two attributes in all datasets are numerical and the last attribute was categorical.
-
The dataset is a 2-dimensional dataset with labels associated with every point.
As usual, I standardized the data before usage, which resulted in better performance. This is to ensure that L2-norm is a proper distance measure. It assumes the same weight given to both the features. As a result, one feature should not dominate the other. Hence, standardizing makes sure L2-norm is a good distance measure.
2 Visualisation
The standardized datasets have been visualised below.
Which algorithm to choose?
-
K-means clustering works well for datasets with convex clusters.
-
Hierarchical clustering ( HC ) with complete link meta-distance forces the obtained clusters to be spherical in nature. As a result, this works well for datasets with convex clusters.
-
DBSCAN obtains non-convex clusters, but it requires good separation between two clusters ( otherwise the optimal (min pts, ϵ) is difficult to obtain ).
-
Hierarchical clustering with single link meta-distance also obtains non-convex clusters. It is better than DBSCAN as we can specify the number of clusters needed, and hence more robust to noise in the datasets.
Having known this, we can obtain a qualitative estimate about which clustering algorithm performs well on the given dataset.
Aggregation
Since the points are nearly convex, K-means and HC-complete will work well. HC-single will work well except for the region between the clusters, which may get misclassified. DBSCAN works provided we have a high value for minpoints. This prevents the boundary points getting classified as outliers.
Compound
K-means and HC-complete will not work due to non-convex nature of certain clusters. DBSCAN will work for certain value of min-pts but might merge the points on the right ( the non-convex cluster points and the less-densely placed points surrounding it ). HC-single will also work as it obtains non-convex clusters, but might merge the above mentioned clusters.
D31
Since, the clusters are convex, K-means and HC-complete will work well. But results might be slightly different due to noisy points near the cluster boundary. DBSCAN will not work as the clusters are not well separated and there are a lot of noisy/overlapping points. Similarly, HC-single will suffer. But its output might be slightly better as we can specify the number of clusters we want, which can give a better partition between clusters.
Flames
K-means and HC-complete will not work due to non-convex clusters. Since the clusters are almost of uniform density and are well separated, DBSCAN and HC-single will work. It is necessary to choose the appropriate minpoints for DBSCAN.
Jain
K-means and HC-complete will not work well, as the clusters are not convex. Since, the clusters are well separated, DBSCAN and HC-single will work well. The performance here will be better than Flames as the clusters are better separated.
Path-based
Due to non-convex nature of clusters, K-means and HC-complete will not perform well. On the other hand, HC-single and DBSCAN will perform well on this dataset. Choosing wrong values of ϵ for DBSCAN might result in misclassification near boundary points. On the other hand, HC-single will perform better as there are no parameters to tune in it, except the number of clusters.
R15
The dataset has convex clusters and are well separated ( unlike D31 ). So, all algorithms will work well.
Spiral
Owing to the non-convex nature of clusters, DBSCAN and HC-single will work well for this dataset. K-means and HC-complete will not perform well on this dataset.
3 Performance of K-means on R15 dataset
For
k = 8, the cluster purity is
0.533. The assigned clusters is shown below.
As the cluster size increases, the purity increases as well. This is because, the clusters are becoming more and more skewed. Theoritically, the cluster purity is
1.0 if
k = n, where
k is the number of clusters and
n is the number of data points.
4 Performance of DBSCAN on the Jain dataset
As we all know, DBSCAN is very sensitive to parameters (minpoints, ϵ). Wrong choices of the parameters gives horrible clustering results. In order to obtain the correct choice of the parameters, I resolved to a grid-search over the (minpoints, ϵ) space. I observed that the variation of cluster-purity with the parameters is not predictable. So, I am reporting all the results observed.
I varied ϵ from 0 to 1 in steps of 0.05 and minpoints from 1 to 20 in steps of 1. Once an optimal range for ϵ and minpoints are obtained, the values are finetuned to get best performance. The following observations were made.
-
For large values of ϵ, DBSCAN identifies a large number of core points and as a result classifies the entire data into a single cluster. This resulted in a cluster purity of around 0.74. The visualisation shown below was obtained for minpoints = 11 and ϵ = 0.9. Note, no points were flagged as OUTLIERS.
-
For large values of minpoints, less number of core points are identified and hence, many points are flagged as NOISE.
-
Excluding the above configurations, the reasonable range of values are minpoints between 11 and 17 and ϵ around 0.1.
-
The best purity for 2 clusters was obtained, when ϵ = 0.08 and minpoints = 2, for which the purity was 0.9785. This resulted in 8 outliers and the remaining clustered. The results are visualised below.
5 DBSCAN Vs Hierarchical clustering on Path-based, Spiral and Flames datasets
DBSCAN
To obtain the optimal values of ϵ and minpoints, grid-search is followed. I varied ϵ from 0 to 1 in steps of 0.05 and minpoints from 1 to 20 in steps of 1. Once an optimal range for ϵ and minpoints are obtained, the values are finetuned to get best performance. The following observations were made.
The rough range for ϵ was around 0.1 and for minpoints, it is 2 to 9. The results are tabulated below.
|
Performance of DBSCAN on the Path-based, Spiral and Flames datasets
|
|
Dataset
|
Classes
|
Epsilon ϵ
|
Minpoints M
|
Clusters
|
Outliers
|
Purity
|
|
Path-based
|
3
|
0.07
|
9
|
3
|
107
|
0.9933
|
|
Spiral
|
3
|
0.1
|
2
|
3
|
0
|
1.0
|
|
Flames
|
2
|
0.1
|
9
|
2
|
3
|
0.9875
|
Hierarchical clustering
Weka supports a number of linkTypes like single, complete, average, mean, centroid, ward, adjcomplete and neighbour_joining. Generally for non-convex clusters, ward and single link types prove to be efficient in clustering.
After experimenting with all possible link types, the results are summarised below.
|
Performance of Hierarchical clustering on the Path-based, Spiral and Flames datasets
|
|
Dataset
|
Clusters
|
Link type
|
Purity
|
|
Path-based
|
3
|
Ward
|
0.7534
|
|
Spiral
|
3
|
Single
|
1.0
|
|
Flames
|
2
|
Ward
|
1.0
|
The above results are visualised below.
6 Analysis of D31 dataset
K-means
The performance of K-means is tabulated below. We can observe that K-means successfully identifies the 32 clusters for k = 32 with a cluster-purity of 0.879. The purity increases as we increase k. But, it saturates for large k. For instance, beyond k = 64, the value of cluster-purity remains almost constant around 0.966.
|
Variation of cluster-purity with k
|
|
No. of clusters k
|
Cluster purity
|
|
32
|
0.879
|
|
40
|
0.897
|
|
48
|
0.957
|
|
56
|
0.965
|
|
64
|
0.967
|
|
128
|
0.966
|
DBSCAN
We can observe that the clusters are not well separated. As a result, DBSCAN doesn’t perform well. I did a grid-search by varying ϵ from 0 to 1 in steps of 0.05 and varying minpoints from 1 to 20 in steps of 1. As the clusters overlap, the number of clusters obtained is less. In all my trials, it doesn’t exceed 5.
The best cluster purity obtained was 0.1622 for ϵ = 0.05 and minpoints = 11.
Hierarchical clustering
Using the Ward’s linkage with 32 clusters we get a cluster-purity of 0.9632. It is visualised below.


Schoolboy, 13, arrested after suspect stolen Ford Fiesta flips during police chase in Oldbury
The motor lost control and flipped on its side near to Birchley Island, Oldbury
by Jordan Coussins, https://www.birminghammail.co.uk/authors/jordan-coussins/A schoolboy has been arrested after a suspected stolen car flipped on its side after a police pursuit in Oldbury.
West Midlands Police told Black Country Live that officers on patrol spotted the Ford Fiesta on Wolverhampton Road at 2.15am on Monday, November 18.
But following a short pursuit, which was spotted by locals, the motor lost control and flipped on its side near to Birchley Island.
Two teenagers were arrested at the scene; a 13-year-old boy was arrested on suspicion of burglary and has been released while enquiries continue.
A 16-year-old boy, who can’t be named for legal reasons, was charged with burglary and driving offences and will appear before Birmingham Magistrates’ Court today (November 19).
A spokesman for the force added: “Officers on patrol spotted a suspected stolen car on the Wolverhampton Road, Oldbury at 2.15am yesterday morning (18 November).
“Following a short pursuit, the Ford Fiesta lost control and collided near to the Birchley Island.
“Two teenagers were arrested at the scene; a 13-year-old boy was arrested on suspicion of burglary and has been released while enquiries continue.
“A 16-year-old boy, who can’t be named for legal reasons, was charged with burglary and driving offences. He is due to appear before Birmingham Magistrates’ Court today (November 19).”


HOWARD'S END A film review by Frank Maloney Copyright 1992 Frank Maloney
HOWARD'S END is a film directed by James Ivory, produced by Ismail Merchant, and written by Ruth Prawer Jhabvala, from the novel by E. M. Forster. It stars Anthony Hopkins, Vanessa Redgrave, Helena Bonham Carter, Emma Thompson, Samuel West, Nicola Duffett, and Joseph Bennet. Rated PG for mature themes.
HOWARD'S END is the latest and, I think, the best film yet from the team of Merchant, Ivory, and Jhabvala. Their previous collaborations, of course, include two other Forster novels (ROOM WITH A VIEW and MAURICE), MR. AND MRS. BRIDGE, and THE BOSTONIANS (my least favorite). It doesn't hurt anyone that the source novel is Forster's masterpiece, but a less gifted writer than Jhabvala could easily have gotten lost in the many layers and characters, the scope, of the original. She is faithful to the spirit of the novel, she gives literal renditions of individual scenes and fearlessly condenses other pages into a gesture or a line of dialogue. The result is light, effortless, graceful, lively, funny, fascinating, and alarming. The production values are high, precise, and convincing. Ivory's direction is delicate and evocative. And the actors constitute a dream cast.
First, let us praise Vanessa Redgrave as Ruth Wilcox, the ethereal, the glad-to-be-protected, the ailing, the intensely passionate, the owner of Howard's End, the country house at the heart of the story. Redgrave's part is a short one, but it is a characterization of such strength and originality as to be sure to stay with you for a long time to come. Ruth's unwordliness and fragility come through in such things as her slow, gravely impassioned speech. As the materfamilias of the nouveau riche Wilcoxes, she cares only for Howard's End; it alone is the family home, despite all the residential properties her husband owns. The opening scene is of Ruth walking in the moonlight at Howard's End, and Redgrave tells us everything in the way she walks, wraithlike, floating in her heavy, trailing evening gown.
Anthony Hopkins also gives a devastating portrait of Henry Wilcox, the great man of business, the prig, the hypocrite, the keeper of secret guilts, the fragile monster. If Hopkins is not the best male actor in the English-language cinema, he is surely in the running; he brings to life an unsympathetic character in a way wholly different from the intense scene-chewing of his Hannibal Lecter. He even looks like a wholly different person.
But it is Emma Thompson, seen last year in HENRY V and DEAD AGAIN, who is the heart and soul of this movie and who has the most difficult role. She plays Margaret Schlegel, the older of the two sisters, wise, patient, dotty, witty, cultured, civilized. Margaret's friendship with Ruth is the one pure love of the story, but her involvement with the dreadful Wilcox is the great mystery of the story. Thompson illuminates every scene she is in with her grace and civility. Margaret is a breakthrough role for her, especially since the overwhelming Kenneth Branaugh, her husband, is nowhere in evidence here.
Helena Bonham Carter evinces a breakthrough all her own. Gone is the pouty ingenue. Instead, here we have an angry, mature woman, who is fearlessly honest and who insists that everyones take responsibility for his or her actions. As Helen Schlegel, she walks the thin line between radicalness and madness. She is as much the modern woman as Margaret is the old-fashioned one, and they are the only two uncorrupted characters in the story. It is as if Helen's vision leads her past the confusion of the transitional Edwardian society that her contemporaries are caught up in and onto a more frightening, lonelier, more honest world.
The other actors are each much to be commended, especially Nicola Duffett, Samuel West, and Prunella Scales in particular. Duffet plays the tartish Julie Bast; her great scene is in the tea tent at an ostentatious society wedding. West plays Leonard Bast, the victim of class prejudice and interfering do-gooders; Bast is a clerk with aspirations to rise above his station. He is proud but foolish, stuffy and passionate, caught in the trap of trying to do the right thing with only novels to tell what that is. Scales is fluffy and lovable as the Devon aunt of the Schlegel sisters. (By the way, Simon Callow, a Merchant-Ivory regular, makes a cameo appearance as a pompous lecturer.)
Besides the acting, I highly recommend both the music and the cinematography. Alas, I have the name of neither director in front of me. Let me say merely that HOWARD'S END is as much a delight to the eye and ear as to the intellect.
I high recommend HOWARD'S END, even at full ticket price.
-- Frank Richard Aloysius Jude Maloney .
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rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
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Properties:
| Name | Type | Description |
|---|---|---|
injectable |
function | |
autoInject |
function | |
resolve |
function |
- Source:
Methods
(static) autoinjectable(…services) → {decoratorCallback}
Automatic injection decorator.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
services |
function |
<repeatable> |
The injectable classes the target class depends on. |
- Source:
Returns:
- The autoInjection function for the target class.
- Type
- decoratorCallback
(static) injectable(…services) → {decoratorCallback}
Dependency injection decorator.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
services |
function |
<repeatable> |
The injectable classes the target class depends on. |
- Source:
Returns:
- The registration function for the target class.
- Type
- decoratorCallback
(static) resolve(target) → {Object}
Inversion-of-control resolver.
Parameters:
| Name | Type | Description |
|---|---|---|
target |
function | The class of the service to be resolved. |
- Source:
Returns:
- An instance of the target class.
- Type
- Object


Cascading Style Sheets
The Definitive guide
By Eric A. Meyer
Chapter 2 - Selectors
Items covered :-
- No inline assignment of css rules eg
"font color="gray">This is h2 text "
- Rule Structure - Selector property and value
- Element selectors
- Declarations and keywords eg p {font: medium Helvetica;}
CSS keywords are separated by spaces—except in one
instance.
- Grouping selector - Universal selector
- Class and ID selectors
- Select by exact attribute selector
- Select by partial attributr selector
- Substring selection
- Particular Attribute selector
- Descendant selectors - rules that can operate in certain structural circumstances but not others
- Selecting Children
- Pseudo Classes and elements
:focus Refers to any element that currently has the input focus—i.e., can accept keyboard input or be activated in some way.
:hover Refers to any element over which the mouse pointer is placed—e.g., a hyperlink over which the mouse pointer is hoving.
:active Refers to any element that has been activated by user input—e.g., a hyperlink on which a user clicks during the time the mouse button is held down.
Acronym LVHA- Link Visited Hover Active
When handling plutonium, care must be taken to avoid the formation of a critical mass.
With plutonium, the possibility of implosion is very real, and must be avoided at all costs. This can be accomplished by keeping the various masses separate.
This is an id selector
Summary
By using selectors based on the document’s language, authors can create CSS rules
that apply to a large number of similar elements just as easily as they can construct
rules that apply in very narrow circumstances. The ability to group together both
selectors and rules keeps style sheets compact and flexible, which incidentally leads
to smaller file sizes and faster download times.
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