eXploropia is an organized tour company in Ethiopia established in 2019. Its major goal is to develop
different forms of tourism with a new and improved quality of service provisions. We provide quality
services and operate on various trips in a responsible way. And Our aim is to provide excellent service
and unforgettable memories for each and every client. We sincerely hope that they will tell everyone about
Ethiopia and the quality time spent with us.
Our tours emphasize the living culture, nature and history of the country. We believe that spending time with local people in
their homelands gives a true picture of Ethiopia and a unique experience for travelers.
Our Guides
We assign multi-lingual trained professionals accordingly to client's language preferences. We have professional
guides who speak English, Italy, Germen, French, Russia and Spanish. In addition, we use local guides at all historic
sites and have responsible agents at all attractions that care for our clients on behalf of eXploropia.
Our Vehicles and Drivers
Our Vehicles are comprehensively insured, conditioned with Ac, equipped with refrigerator and we use different cars
for different sites. our offer for Addis city tour, historic north and Harrar high bus, coaster Bus , and mini-van
based on the interest and number of clients. 4WD Toyota Land cruiser or Nissan [4x4] based on models will be offer
for Omo Valley, Danakil Depression and other remote area.
Our drivers are geared with travel etiquette, knows places very well, safely drive, and fairly speak English.
Our Services
PACKAGE AND TAILOR MADE TOURS


Concepts About Print, an assessment developed by Marie Clay, is a key predictor of later literacy success. We often use these assessments in pre-school. More importantly the techniques can be used in our read alouds to explain how print functions when we read books?
Concepts About Print: What have children learned about printed language?. Mind/shift Concepts About Print, Heinemann
.Toddlers and touchscreens: Learning “Concepts Beyond Print” with tablet technologies. . Online Article
.Complete the readings.
Annotate the readings by focusing on key definitions,
Getting Loud
Is the Concepts of Print a useful assessment? Where do pixles belong in the pre-school classroom?
Record youself pretending to read a children's literature book going over all of the Concept of Print questions. Act is you are in front of the class and using the assessment as question cuews..


Vegan sues Burger King over Impossible Whopper
Burger King was sued by a vegan customer who accused the fast-food chain of contaminating its meatless “Impossible Whoppers” by cooking them on the same grills as its traditional meat burgers, Reuters reports.
In a proposed class action, Phillip Williams said he bought an Impossible Whopper, a plant-based alternative to Burger King’s regular Whopper, at an Atlanta drive-through, and would not have paid a premium price had he known the cooking would leave it “coated in meat by-products”.
The lawsuit filed in Miami federal court seeks damages for all US purchasers of the Impossible Whopper, and an injunction requiring Burger King to “plainly disclose” that Impossible Whoppers and regular burgers are cooked on the same grills.
Burger King, a unit of Toronto-based Restaurant Brands International Inc., declined to comment, saying it does not discuss pending litigation.
Its website describes the Impossible Burger as “100% Whopper, 0% Beef”, and adds that “for guests looking for a meat-free option, a non-broiler method of preparation is available upon request”.
Williams’ lawyer did not immediately respond to a request for comment on the disclaimer or the available cooking options.
Impossible Foods Inc., which helped create the Impossible Whopper, has said it designed the product for meat eaters who want to consume less animal protein, not for vegans or vegetarians.
“For people who are strictly vegan, there is a microwave prep procedure that they’re welcome to ask for in any store,” Dana Worth, Impossible Foods’ head of sales, said in a recent interview.
Burger King began selling the Impossible Whopper in August.
Restaurant Brands also owns the Canadian coffee and restaurant chain Tim Hortons, and is overseen by Brazilian private equity firm 3G Capital.
The case is Williams v Burger King Corp, U.S. District Court, Southern District of Florida, No. 19-24755.
– Contact us at<EMAIL_ADDRESS>CG


Stella McCartney's Meghan Markle post on Remembrance Sunday blasted over being 'disrespectful'
Stella, who is the daughter of Paul McCartney, posted an image of Meghan, who is married to Prince Harry, at this year's Remembrance Sunday service
by James Rodger, https://www.facebook.com/jamesrodgerjournalistStella McCartney has sparked a fierce backlash for an 'insensitive' Meghan Markle Remembrance Sunday post.
The British designer took to social media to share a photograph of the Duchess of Sussex.
Stella, who is the daughter of Paul McCartney, posted an image of Meghan, who is married to Prince Harry, at this year's Remembrance Sunday service.
In the photograph, Meghan - who gave birth to baby Archie earlier this year - was seen wearing a matching navy woolen coat and hat ensemble.
Stella captioned the image: "So honoured to have HRH Duchess of Sussex in our Autumn '19 coat at Remembrance Day service. x Stella #RemembranceDay."
Instagram users subsequently slammed Stella over her "disrespectful" choice of words.
"Using remembrance day to advertise your clothes is a little disrespectful!! People died and you take pictures of people showing respect for advertising purposes. Just wrong," said one critic.
A second added: "Remembrance day is to honour those that fought for us not to use for advertising purposes. Pretty shocked."
"Nice - but not really a time to be advertising your clothes, Stella," wrote a third.
Stella is yet to issue a comment on the backlash it caused.
The image has been removed from Instagram.


Org members
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Go to a space to learn more about space level roles.
| Name | Org billing manager | Org manager | Org auditor | Spaces a collaborator on |
|---|---|---|---|---|
|<EMAIL_ADDRESS>(You) | No org level role | staging sandbox |


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Sample Website
It is working!
This is a very simple demonstration of a Docker Container containing an Apache Webserver which displays this page


{{ define "main" }} 404 ! Page not found Sorry, but that link wasn't found. Perhaps you were looking for one of the following: Main page Documentation Blog Community FAQ {{ end }}
404 !
Page not found
Sorry, but that link wasn't found. Perhaps you were looking for one of the following:


It you're.
It you're.


Registry
We're grateful for your contribution to our married life. We know it isn't easy, so thank you for your support. All amounts below can be modified.
Gym Membership
$500We won't have a wedding to kick us in the butt!
Roomba
$360Christina wants efficient cleaning.
Andrew wants a robot.
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Life Essentials: Fruit
$200Christina eats a lot of fruit.
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HOME © Muaz Khan . @WebRTCWeb . Github . Latest issues . What's New?
Local Media Stream |
If 10 users join your broadcasted room, 40 RTP ports will be opened on your browser:
For 10 users session, in one-way broadcasting:
i.e. total 20 outgoing RTP ports will be opened on your browser.
On each participant's side; only 2 incoming RTP ports will be opened.
Unlike one-way broadcasting; one-to-many broadcasting experiment opens both outgoing as well as incoming RTP ports for each participant.
<script src="https://www.webrtc-experiment.com/one-to-many-video-broadcasting/meeting.js"></script>
var meeting = new Meeting('meeting-unique-id'); // on getting local or remote streams meeting.onaddstream = function(e) { // e.type == 'local' ---- it is local media stream // e.type == 'remote' --- it is remote media stream document.body.appendChild(e.video); }; // custom signaling channel // you can use each and every signaling channel // any websocket, socket.io, or XHR implementation // any SIP server // anything! etc. meeting.openSignalingChannel = function(callback) { return io.connect().on('message', callback); }; // check pre-created meeting rooms // it is useful to auto-join // or search pre-created sessions meeting.check(); document.getElementById('setup-new-meeting').onclick = function() { meeting.setup('meeting room name'); }; // if someone leaves; just remove his video meeting.onuserleft = function(userid) { var video = document.getElementById(userid); if(video) video.parentNode.removeChild(video); };


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Algorithmic methods¶
There are three calculations to accomplish in order to obtain all the parameters necessary to write the circuit Hamiltonian. We need:
- the eigen-frequencies $omega_m$ and loss rates $kappa_m$ fulfilling $Y_r(zeta_m=omega_m+ikappa_m/2) = 0$ where $Y_r$ is the admittance across a reference junction
- the derivative of this admittance evaluated at $zeta_m$
- the transfer functions $T_{jr}$ between junctions $j$ and the reference junction $r$
In this section, we cover the algorithmic methods used to calculate these three quantities
Resonance frequency and dissipation rate {#sec:methods_resonance_frequency}¶
### Theoretical background
In order to obtain an expression for the admittance across the reference junction, we start by writing the set of equations governing the physics of the circuit. We first determine a list of nodes, which are points at which circuit components connect. Each node, labeled $n$, is assigned a voltage $v_n$. We name $r_pm$ the positive and negative nodes of the reference junction.
We are interested in the steady-state oscillatory behavior of the system. We can thus move to the frequency domain, with complex node voltages $|V_n(omega)| e^{i(omega t+theta(V_n(omega_n)))}$, fully described by their phasors, the complex numbers $V_n = |V_n(\omega)| e^{itheta(V_n(omega_n))}$. In this mathematical construct, the real-part of the complex voltages describes the voltage one would measure at the node in reality. Current conservation dictates that the sum of all currents arriving at any node $n$, from the other nodes $k$ of the circuit should be equal to the oscillatory current injected at node $n$ by a hypothetical, infinite impedance current source. This current is also characterized by a phasor $I_n$. This can be compactly written as $$sum_{kne n} G_{nk}(V_n-V_k) = I_n
label{eq:kirchhoff_1}$$ where $k$ label the other nodes of the
circuit and $G_{nk}$ is the conductance directly connecting nodes $k$ and $n$. Note that in this notation, if a node $k_1$ can only reach node $n$ through another node $k_2$, then $G_{nk_1} = 0$. Inductors (with inductance $L$), capacitors (with capacitance $C$) and resistors (with resistance $R$) then have conductances $1/iLomega$, $iComega$ and $1/R$ respectively.
Expanding Eq. [[eq:kirchhoff_1]](#eq:kirchhoff_1){reference-type=”ref” reference=”eq:kirchhoff_1”} yields $$(sum_{kne n} G_{nk})V_n-sum_{kne n} G_{nk}V_k = I_n
label{eq:kirchhoff_1}$$ which can be written in matrix form as
- $$begin{pmatrix}
- Sigma_{kne 0}G_{0k} &-G_{01} &cdots &-G_{0N} \ -G_{10} &Sigma_{kne 1}G_{1k} &cdots &-G_{1N} \ vdots &vdots &ddots & vdots\ -G_{N0} &-G_{N1} &cdots &Sigma_{kne N}G_{Nk} end{pmatrix} begin{pmatrix} V_0\ V_1\ vdots\ V_N end{pmatrix}= begin{pmatrix} I_0\ I_1\ vdots\ I_N end{pmatrix} label{eq:conductance_matrix_no_ground}$$ Since voltage is the
electric potential of a node relative to another, we still have the freedom of choosing a ground node. Equivalently, conservation of currents imposes that current exciting that node is equal to the sum of currents entering the others, there is thus a redundant degree of freedom in Eq.([[eq:conductance_matrix_no_ground]](#eq:conductance_matrix_no_ground){reference-type=”ref” reference=”eq:conductance_matrix_no_ground”}). For simplicity, we will choose node 0 as ground. Since we are only interested in the admittance across the reference junction, we set all currents to zero, except the currents entering the positive and negative reference junction nodes: $I_{r_+}$ and $I_{r_-} = -I_{r_+}$ respectively. The admittance is defined by $Y_r = I_{r_+}/(V_{r_+}-V_{r_-})$. The equations then reduce to $$mathbf{G}begin{pmatrix}
- conductance matrix $$mathbf{G} =
- begin{pmatrix} Sigma_{kne 1}G_{1k} &-G_{12} &cdots &-G_{1N} \ -G_{21} &Sigma_{kne 1}G_{2k} &cdots &-G_{2N} \ vdots &vdots &ddots & vdots\ -G_{N1} &-G_{N2} &cdots &Sigma_{kne N}G_{Nk} end{pmatrix} label{eq:conductance_matrix}$$
For $Y_r = 0$, Eq [[eq:conductance_matrix_equation]](#eq:conductance_matrix_equation){reference-type=”ref” reference=”eq:conductance_matrix_equation”} has a solution for only specific values of $omega = zeta_m$. These are the values which make the conductance matrix singular, i.e. which make its determinant zero $$text{Det}left[mathbf{G}(zeta_m)right] = 0
label{eq:det}$$ The determinant is a polynomial in $omega$, so the
problem of finding $zeta_m = omega_m+ikappa_m/2$ reduces to finding the roots of this polynomial. Note that plugging $zeta_m$ into the frequency domain expression for the node voltages yields $V_k(zeta_m)e^{iomega_mt}e^{-kappa_mt/2}$, such that the energy $propto v_k(t)^*v_k(t) propto e^{-kappa_mt}$ decays at a rate $kappa_m$, which explains the division by two in the expression of $zeta_m$. Also note, that we would have obtained equation Eq. ([[eq:det]](#eq:det){reference-type=”ref” reference=”eq:det”}) regardless of the choice of reference element.
### Algorithm
We now describe the algorithm used to determine the solutions $zeta_m = omega_m+ikappa_m/2$ of Eq. [[eq:det]](#eq:det){reference-type=”ref” reference=”eq:det”}. As an example, we consider the circuit of Fig. [[fig:f_finder_example]](#fig:f_finder_example){reference-type=”ref” reference=”fig:f_finder_example”}(a) that a user would have built with the GUI.
![ Example circuit to illustrate the mode frequency finder algorithm. (a) Example of a circuit built through the GUI by a user. (b) Application of the first step of the algorithm which removes the wires and grounds to obtain a minimal number of nodes without removing any components. ](figures/fig_f_finder_example.pdf)
[[fig:f_finder_example]]{#fig:f_finder_example label=”fig:f_finder_example”}
The algorithm is as follows
Eliminate wires and grounds. In this case, nodes $N_0,N_5$ would be grouped under a single node labeled 0 and nodes $N_1,N_2,N_3$ would be grouped under node 1, we label node $N_4$ node 2, as shown in Fig. [[fig:f_finder_example]](#fig:f_finder_example){reference-type=”ref” reference=”fig:f_finder_example”}(b).
Compute the un-grounded conductance matrix. For each component present between the different couples of nodes, we append the conductance matrix with the components conductance. The matrix is then multiplied by $omega$ such that all components are polynomials in $omega$, ensuring that the determinant is also a polynomial. In this example, the matrix is $$begin{pmatrix}
iComega^2+1/iL & -iComega^2 & -1/iL \ -iComega^2 &iComega^2+omega/R &-omega/R \
-1/iL &-omega/R &1/iL +omega/R
end{pmatrix}$$
Choose a ground node. The node which has a corresponding column with the most components is chosen as the ground node (to reduce computation time). These rows and columns are erased from the matrix, yielding the final form of the conductance matrix $$mathbf{G}=
begin{pmatrix} iComega^2+omega/R &-omega/R \ -omega/R &1/iL +omega/R end{pmatrix}$$
Compute the determinant. Even if the capacitance, inductance and resistance were specified numerically, the conductance matrix would still be a function of the symbolic variable $omega$. We thus rely on a symbolic Berkowitz determinant calculation algorithm [@berkowitz1984computing; @kerber2009division] implemented in the Sympy library through the berkowitz_det function. In this example, one would obtain $$text{Det}[mathbf{G}] = LComega^2-iRComega -1.$$
Find the roots of the polynomial. Whilst the above steps have to be performed only once for a given circuit, this one should be performed each time the user edits the value of a component. The root-finding is divided in the following steps as prescribed by Ref. [@press2007numerical]. Diagonalize the polynomials companion matrix [@horn1985cr] to obtain an exhaustive list of all roots of the polynomial. This is implemented in the NumPy library through the roots function. Refine the precision of the roots using multiple iterations of Halley’s gradient based root finder [@press2007numerical] until iterations do not improve the root value beyond a predefined tolerance given by the Qcircuit argument root_relative_tolerance. The maximum number of iterations that may be carried out is determined by the Qcircuit argument root_max_iterations. If the imaginary part relative to the real part of the root is lower than the relative tolerance, the imaginary part will be set to zero. The relative tolerance thus sets the highest quality factor that QuCAT can detect. Remove identical roots (equal up to the relative tolerance), roots with negative imaginary or real parts, 0-frequency roots, roots for which $Y_l’(omega_m)<0$ for all $l$, where $Y_l$ is the admittance evaluated at the nodes of an inductive element $l$, and roots for which $Q_m<$ Qcircuit.Q_min. The user is warned of a root being discarded when one of these cases is unexpected.
The roots $zeta_m$ obtained through this algorithm are accessed through the method eigenfrequencies which returns the oscillatory frequency in Hertz of all the modes ${text{Re}[zeta_m]/2pi}$ or loss_rates which returns ${2text{Im}[zeta_m]/2pi}$.
Derivative of the admittance {#sec:methods_network_dY}¶
The zero-point fluctuations in phase $varphi_{text{zpf},m,r}$ for each mode $m$ across a reference junction $r$ is the starting point to computing a Hamiltonian for the non-linear potential of the Junctions. As expressed in Eq. ([[eq:zpf]](#eq:zpf){reference-type=”ref” reference=”eq:zpf”}), this quantity depends on the derivative $Y_r’$ of the admittance $Y_r$ calculated at the nodes of the reference element. In this section we first cover the algorithm used to obtain the admittance at the nodes of an arbitrary component. From this admittance we then describe the method to obtain the derivative of the admittance on which $varphi_{text{zpf},m,r}$ depends Finally we describe how to choose a (mode-dependent) reference element.
### Computing the admittance
Here we describe a method to compute the admittance of a network between two arbitrary nodes. We will continue using the example circuit of Fig. [[fig:f_finder_example]](#fig:f_finder_example){reference-type=”ref” reference=”fig:f_finder_example”}, assuming we want to compute the admittance at the nodes of the inductor.
- Eliminate wires and grounds as in the resonance finding algorithm, nodes $N_0,N_5$ would be grouped under a single node labeled 0 and nodes $N_1,N_2,N_3$ would be grouped under node 1, we label node $N_4$ node 2. We thus obtain Fig. [[fig:Y_computation_example]](#fig:Y_computation_example){reference-type=”ref” reference=”fig:Y_computation_example”}(a)
- Group parallel connections. Group all components connected in parallel as a single “admittance component” equal to the sum of admittances of its parts. In this way two nodes are either disconnected, connected by a single inductor, capacitor, junction or resistor, or connected by a single “admittance component”.
- Reduce the network through star-mesh transformations. Excluding the nodes across which we want to evaluate the admittance, we utilize the star-mesh transformation described in Fig. [[fig:star_mesh]](#fig:star_mesh){reference-type=”ref” reference=”fig:star_mesh”} to reduce the number of nodes in the network to two. If following a star-mesh transformation, two components are found in parallel, they are grouped under a single “admittance component” as described previously. For a node connected to more than 3 other nodes the star-mesh transformation will increase the total number of components in the circuit. So we start with the least-connected nodes to maintain the total number of components in the network to a minimum. In this example, we want to keep nodes 0 and 2, but remove node 1, a start-mesh transform leads to the circuit of Fig. [[fig:Y_computation_example]](#fig:Y_computation_example){reference-type=”ref” reference=”fig:Y_computation_example”}(b) then grouping parallel componnets leads to (c).
- The admittance is that of the remaining “admittance component” once the network has been completely reduced to two nodes.
The symbolic variables at this stage (Sympy Symbols) are $omega$, and the variables corresponding to any component with un-specified values.
![ Star-mesh transform. A node $N$ connected to nodes $A,B,C,..$ through admittances $Y_A,Y_B,…$ can be eliminated if we interconnect nodes $A,B,C,..$ with impedances $Y_{AB},Y_{AC},Y_{BC},…$ given by $Y_{XY} = Y_XY_Y/sum_MY_M$. We show the 5 node case, the initial network on the left is called the “star”, which is then transformed to the “mesh” on the right, reducing the total number of nodes by 1. ](figures/fig_star_mesh.pdf){width=”50%”}
[[fig:star_mesh]]{#fig:star_mesh label=”fig:star_mesh”}
![ Example to illustrate the admittance calculation algorithm. (a) Example of a circuit built through the GUI by a user, after removal of all wires and grounds. (b) Application of the star-mesh transformation to remove node 1. (c) After each application of the star-mesh transformation, parallel connections are grouped together. Only the two nodes across which we want to compute the admittance remain, the admittance is that of the remaining “admittance component”. ](figures/fig_Y_computation_example.pdf)
[[fig:Y_computation_example]]{#fig:Y_computation_example label=”fig:Y_computation_example”}
### Differentiating the admittance
The expression for the admittance obtained from the above algorithm will necessarily be in the form of multiple multiplication, divisions or additions of the admittance of capacitors, inductors or resistors. It is thus possible to transform $Y$ to a rational function of $omega$ $$Y(omega) = frac{P(omega)}{Q(omega)} = frac{p_0+p_1omega+p_2omega^2+…}{q_0+q_1omega+q_2omega^2+…}$$ with the sympy function together. It is then easy to symbolically determine the derivative of Y, ready to be evaluated at $zeta_m$ once the coefficients $p_i$ and $q_i$ have been extracted $$begin{split}
- Y’(zeta_m) &= left(P’(zeta_m)Q(zeta_m) -P(zeta_m)Q’(zeta_m)right)/Q(zeta_m)^2\
- &=(p_1+2p_2zeta_m+…)/(q_0+q_1zeta_m+…),
end{split}$$ taking advantage of the property $P(zeta_m)propto Y(zeta_m)=0$.
### Choice of reference element
For each mode $m$, we use as reference element $r$ the inductor or junction which maximizes $varphi_{text{zpf},m,r}$ as specified by Eq. [[eq:zpf]](#eq:zpf){reference-type=”ref” reference=”eq:zpf”}. This corresponds to the element where the phase fluctuations are majoritarily located. We find that doing so considerably increases the success of evaluating $Y’(omega_m)$. As an example, we plot in Fig. [[fig:best_ref_elt]](#fig:best_ref_elt){reference-type=”ref” reference=”fig:best_ref_elt”} the zero-point fluctuations in phase $varphi_{text{zpf},m,r}$ of the transmon-like mode, calculated for the circuit of Fig. [[fig:1]](#fig:1){reference-type=”ref” reference=”fig:1”}, with the junction or inductor as reference element. What we find is that if the coupling capacitor becomes too small, resulting in modes which are nearly totally localized in either inductor or junction, choosing the wrong reference element combined with numerical inaccuracies leads to unreliable values of $varphi_{text{zpf},m,r}$.
![ Impact of the choice of reference element. (a) Schematic of the circuit used in this example. We have used a 100 fF capacitances, a 10 nH inductor and a 8 nH Josephson inductance, we will vary the coupling capacitance. The zero-point fluctuations in phase $varphi_{text{zpf},r}$ across the inductor ($r=L$) and junction ($r=J$) for most anharmonic mode are drawn on the schematic and plotted in (b) for different values of the coupling capacitor $C_C$. The phase oscillations associated with this mode are mostly located in the junction, so as the coupling capacitor is lowered, the amplitude of phase oscillations diminishes in the inductor. Below $C_Csim 10^{-5}$ fF, numerical accuracies lead to unreliable values of the phase fluctuations in the inductor. This results in the anharmonicity of the qubit-like mode $A_q$, plotted in (c), to be incorrectly estimated if the inductor is chosen as a reference element and the anharmonicity is computed using Eq. ([[eq:phi_j_from_phi_r]](#eq:phi_j_from_phi_r){reference-type=”ref” reference=”eq:phi_j_from_phi_r”}). ](figures/fig_best_ref_elt.pdf)
[[fig:best_ref_elt]]{#fig:best_ref_elt label=”fig:best_ref_elt”}
Transfer functions {#sec:methods_network_transfer}¶
In this section, we describe the method used to determine the transfer function $T_{jr}$ between a junction $j$ and the reference junction $r$. This quantity can be computed from the ABCD matrix [@pozar2009microwave]. The ABCD matrix relates the voltages and currents in a two port network $$begin{pmatrix}
V_r \ I_r end{pmatrix}= begin{pmatrix} A&B \ C&D end{pmatrix} begin{pmatrix} V_j\ I_j\ end{pmatrix}$$ where the convention for current direction is
described in Fig. [[fig:two_port_network]](#fig:two_port_network){reference-type=”ref” reference=”fig:two_port_network”}.
![ Visual summary of the notations and properties of the ABCD matrix applied to the calculation of $T_{rj}$. The transfer function $T_{rj} = 1/A$ is the inverse of the first coefficient of the ABCD matrix which relates the voltages and currents on either end of a network. These currents and voltages are defined as shown above, with the reference junction on the left and junction $j$ on the right. Currents are defined as entering and exciting on the left and right respectively. If the circuit is constituted of a cascade of two port sub-networks, the product of the sub-network ABCD matrices are equal to the ABCD matrix of the total network. ](figures/fig_two_port_network.pdf)
[[fig:two_port_network]]{#fig:two_port_network label=”fig:two_port_network”}
By constructing the network as in Fig. [[fig:two_port_network]](#fig:two_port_network){reference-type=”ref” reference=”fig:two_port_network”}, with the reference junction on the left and junction $j$ on the right, the transfer function is given by $$T_{jr}(omega) = frac{V_j(omega)}{V_r(omega)} = frac{1}{A}$$
To determine $A$, we first reduce the circuit using star-mesh transformations (see Fig.[[fig:star_mesh]](#fig:star_mesh){reference-type=”ref” reference=”fig:star_mesh”}), and group parallel connections as described in the previous section, until only the nodes of junctions $r$ and $j$ are left. If the junctions initially shared a node, the resulting circuit will be equivalent to the network shown in Fig.[[fig:network]](#fig:network){reference-type=”ref” reference=”fig:network”} (a). In this case, $$A = left(1+frac{Y_p}{Y_a}right).$$ If the junctions do not share nodes, the resulting circuit will be equivalent to the network shown in Fig.[[fig:network]](#fig:network){reference-type=”ref” reference=”fig:network”}(b), where some admittances may be equal to $0$ to represent open circuits. To compute the ABCD matrix of this resulting circuit, we make use of the property illustrated in Fig. [[fig:two_port_network]](#fig:two_port_network){reference-type=”ref” reference=”fig:two_port_network”}: the ABCD matrix of a cascade connection of two-port networks is equal to the product of the ABCD matrices of the individual networks. We first determine the $ABCD$ matrix of three parts of the network (separated by dashed line in Fig.[[fig:network]](#fig:network){reference-type=”ref” reference=”fig:network”}) such that the $ABCD$ matrix of the total network reads $$begin{bmatrix}
A & B \ C & D \
end{bmatrix} = begin{bmatrix}
1 & 0 \ Y_r & 1 \
end{bmatrix} begin{bmatrix}
tilde A & tilde B \ tilde C & tilde D \
end{bmatrix} begin{bmatrix}
1 & 0 \ Y_j & 1 \
end{bmatrix}.$$ $$A = tilde A+tilde B Y_j,$$ where the $A$ and $B$ coefficients of the middle part of the network are $$begin{split}
tilde A&=(Y_a + Y_b)(Y_c + Y_d)/(Y_a Y_d-Y_b Y_c)\ tilde B&=(Y_a + Y_b + Y_c + Y_d)/(Y_a Y_d-Y_b Y_c).
end{split}$$ The ABCD matrix for the middle part of the circuit is derived in Sec. 10.11 of Ref. [@arshad2010network], and the ABCD matrices for the circuits on either sides are provided in Ref. [@pozar2009microwave].
![ Networks after star-mesh reduction. The two non-trivial situations reached after applying star-mesh transformations to a network to obtain $T_{rj}$. []{label=”fig:network”}](figures/fig_network.pdf){#fig:network width=”50%”}
This method is also applied to calculate the transfer function to capacitors, inductors and resistors, notably to visualize the normal mode with the show_normal_mode function.


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Patient arrived in ED with suspected DVT
Winter purslane courgette pumpkin quandong komatsuna fennel green bean cucumber watercress. Pea sprouts wattle seed rutabaga okra yarrow cress avocado grape radish bush tomato ricebean black-eyed pea maize eggplant. Cabbage lentil cucumber chickpea sorrel gram garbanzo plantain lotus root bok choy squash cress potato summer purslane salsify fennel horseradish dulse. Winter purslane garbanzo artichoke broccoli lentil corn okra silver beet celery quandong. Plantain salad beetroot bunya nuts black-eyed pea collard greens radish water spinach gourd chicory prairie turnip avocado sierra leone bologi.
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Triage nurse entered incorrect weight into EHR
Caulie dandelion maize lentil collard greens radish arugula sweet pepper water spinach kombu courgette lettuce. Celery coriander bitterleaf epazote radicchio shallot winter purslane collard greens spring onion squash lentil. Artichoke salad bamboo shoot black-eyed pea brussels sprout garlic kohlrabi.
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Physician examined patient
Parsnip lotus root celery yarrow seakale tomato collard greens tigernut epazote ricebean melon tomatillo soybean chicory broccoli beet greens peanut salad. Lotus root burdock bell pepper chickweed shallot groundnut pea sprouts welsh onion wattle seed pea salsify turnip scallion peanut arugula bamboo shoot onion swiss chard. Avocado tomato peanut soko amaranth grape fennel chickweed mung bean soybean endive squash beet greens carrot chicory green bean. Tigernut dandelion sea lettuce garlic daikon courgette celery maize parsley komatsuna black-eyed pea bell pepper aubergine cauliflower zucchini. Quandong pea chickweed tomatillo quandong cauliflower spinach water spinach.
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Physician ordered IV heparin using a paper order form
Peanut gourd nori welsh onion rock melon mustard jícama. Desert raisin amaranth kombu aubergine kale seakale brussels sprout pea. Black-eyed pea celtuce bamboo shoot salad kohlrabi leek squash prairie turnip catsear rock melon chard taro broccoli turnip greens. Fennel quandong potato watercress ricebean swiss chard garbanzo. Endive daikon brussels sprout lotus root silver beet epazote melon shallot.
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Nurse entered heparin order in CPOE
Parsley amaranth tigernut silver beet maize fennel spinach. Ricebean black-eyed pea maize scallion green bean spinach cabbage jícama bell pepper carrot onion corn plantain garbanzo. Sierra leone bologi komatsuna celery peanut swiss chard silver beet squash dandelion maize chicory burdock tatsoi dulse radish wakame beetroot.
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Automated dose calculator used incorrect weight
Caulie dandelion maize lentil collard greens radish arugula sweet pepper water spinach kombu courgette lettuce. Celery coriander bitterleaf epazote radicchio shallot winter purslane collard greens spring onion squash lentil. Artichoke salad bamboo shoot black-eyed pea brussels sprout garlic kohlrabi.
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Nurse administered incorrect dose to patient
Parsnip lotus root celery yarrow seakale tomato collard greens tigernut epazote ricebean melon tomatillo soybean chicory broccoli beet greens peanut salad. Lotus root burdock bell pepper chickweed shallot groundnut pea sprouts welsh onion wattle seed pea salsify turnip scallion peanut arugula bamboo shoot onion swiss chard. Avocado tomato peanut soko amaranth grape fennel chickweed mung bean soybean endive squash beet greens carrot chicory green bean. Tigernut dandelion sea lettuce garlic daikon courgette celery maize parsley komatsuna black-eyed pea bell pepper aubergine cauliflower zucchini. Quandong pea chickweed tomatillo quandong cauliflower spinach water spinach.
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Patient experienced severe hemorrage
Parsnip lotus root celery yarrow seakale tomato collard greens tigernut epazote ricebean melon tomatillo soybean chicory broccoli beet greens peanut salad. Lotus root burdock bell pepper chickweed shallot groundnut pea sprouts welsh onion wattle seed pea salsify turnip scallion peanut arugula bamboo shoot onion swiss chard. Avocado tomato peanut soko amaranth grape fennel chickweed mung bean soybean endive squash beet greens carrot chicory green bean. Tigernut dandelion sea lettuce garlic daikon courgette celery maize parsley komatsuna black-eyed pea bell pepper aubergine cauliflower zucchini. Quandong pea chickweed tomatillo quandong cauliflower spinach water spinach.


|
Panda3D
|
Public Member Functions | |
| __init__ (const BulletSoftBodyWorldInfo) | |
| garbageCollect (int lifetime) | |
| float | getAirDensity () |
| LVector3 | getGravity () |
| float | getWaterDensity () |
| LVector3 | getWaterNormal () |
| float | getWaterOffset () |
| setAirDensity (float density) | |
| setGravity (const LVector3 gravity) | |
| setWaterDensity (float density) | |
| setWaterNormal (const LVector3 normal) | |
| setWaterOffset (float offset) | |
Public Attributes | |
| float | air_density |
| LVector3 | gravity |
| float | water_density |
| LVector3 | water_normal |
| float | water_offset |
| __init__ | ( | const | BulletSoftBodyWorldInfo | ) |
| garbageCollect | ( | int | lifetime | ) |
| float getAirDensity | ( | ) |
| LVector3 getGravity | ( | ) |
| float getWaterDensity | ( | ) |
| LVector3 getWaterNormal | ( | ) |
| float getWaterOffset | ( | ) |
| setAirDensity | ( | float | density | ) |
| setGravity | ( | const LVector3 | gravity | ) |
| setWaterDensity | ( | float | density | ) |
| setWaterNormal | ( | const LVector3 | normal | ) |
| setWaterOffset | ( | float | offset | ) |
| float air_density |
| LVector3 gravity |
| float water_density |
| LVector3 water_normal |
| float water_offset |


Jeremy Corbyn refuses to say whether he wants the UK to leave the EU
Jeremy Corbyn has refused to say whether or not he wants Britain to leave the European Union, saying it’s up to the public to decide.
The Labour leader told the BBC’s Andrew Marr show his party will hold another referendum on Brexit if they win the General Election.
He said: ‘We’re going to put that choice to the British people, and they will make their decision.
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‘We’ll negotiate within three months a credible, sensible option of Leave, and put that alongside Remain in a referendum.’
He added that he wants a close relationship with the EU in the future when pressed on his personal view on whether or not the UK should leave.
Mr Corbyn said a Labour government will negotiate a sensible leave deal within three months of taking power and then voters will get the chance to decide again on Brexit.
He added: ‘The answer is, as I’ve explained to you, that we will negotiate a credible option of leaving, put that alongside Remain, and the British people would make their mind up on that basis, and we will discuss this obviously when we’ve concluded those initial negotiations which will start immediately we take office.’
He denied suggestions he was unable to say whether or not he would prefer for the UK to be in or out.
He responded: ‘Jeremy Corbyn can say this – that we have to have a close trading relationship with Europe, we won’t crash out into the arms of Donald Trump, we won’t be doing sweetheart trade deals with the USA, and we won’t be wrecking our National Health Service in the process as the Prime Minister is planning to do.’
He announced that the party’s manifesto will be published on Thursday after being pressed on the party’s position on the free movement of people.
‘You’ll have to wait until Thursday to see the wording of it,’ Mr Corbyn said.
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Earlier on the programme, Foreign Secretary Dominic Raab told Mr Marr he does not think it is remotely likely that the UK will leave the EU without a deal.
Mr Raab insisted the UK is ‘not going to align ourselves to EU rules’, adding: ‘There’s going to be a negotiation, of course there are going to be compromises on all sides.’
Got a story for Metro.co.uk?
Get in touch with our news team by emailing us at<EMAIL_ADDRESS>For more stories like this, check our news page.


@* * Copyright 2021 HM Revenue & Customs * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *@ @import models.resident.income.PersonalAllowanceModel @import models.resident.TaxYearModel @import uk.gov.hmrc.play.views.html.helpers.form @import views.html.helpers._ @import views.html.calculation._ @import uk.gov.hmrc.play.views.helpers.MoneyPounds @import play.api.Application @import config.ApplicationConfig @(personalAllowanceForm: Form[PersonalAllowanceModel], taxYear: TaxYearModel, standardPA: BigDecimal, homeLink: String, postAction: Call, backLink: Option[String], journey: String, navTitle: String, currentTaxYear: String)(implicit request: Request[_], messages: Messages, application: Application, applicationConfig: ApplicationConfig) @defining(taxYear.taxYearSupplied == currentTaxYear) { taxYearValid => @defining( if(taxYearValid) Messages("calc.resident.personalAllowance.currentYearQuestion") else Messages("calc.resident.personalAllowance.question", taxYear.taxYearSupplied)) { question => @resident_main_template(title = question, backLink = backLink, homeLink = homeLink, navTitle = navTitle) { @errorSummary(personalAllowanceForm, "amount")
@Messages("calc.resident.personalAllowance.help")
@{ val splitYear = taxYear.taxYearSupplied.split("/") Messages("calc.resident.personalAllowance.list.title", splitYear.apply(0), splitYear.apply(0).substring(0, 2) + splitYear.apply(1), MoneyPounds(standardPA, 0).quantity) }


Full Stack Web Dev & Visual Design
I'm Yoni David. I'm knee deep in a full stack web development bootcamp at Columbia University right now and I'm playing with new ideas here. Over time I hope to turn this site into a robust portfolio showcasing my thirst to stay on the cutting edge of interactive design.
I come from a background in music and I've had my hand in a variety of small businesses. I currently own and opperate a small real estate company called Yup!


Before Change
if dist.get_rank() == 0:
assert self._delegate is not None
self._delegate.report(value, step)
dist.barrier()
def should_prune(self) -> bool:
def func() -> bool:
After Change
return self._call_and_communicate_obj(func)
def report(self, value: float, step: int) -> None:
err = None
if dist.get_rank() == 0:
try:
assert self._delegate is not None
self._delegate.report(value, step)
except Exception as e:
err = e
err = self._broadcast(err)
else:
err = self._broadcast(err)
if err is not None:
raise err
def should_prune(self) -> bool:
def func() -> bool:
assert self._delegate is not None


Margot
Example
To run the example project, clone the repo, and run pod install
from the Example directory first.
Requirements
Installation
Margot is available through CocoaPods. To install it, simply add the following line to your Podfile:
pod 'Margot'
Author
<EMAIL_ADDRESS><EMAIL_ADDRESS>License
Margot is available under the MIT license. See the LICENSE file for more info.


10.10.2014 check out notepad 1.0
23.1.2015 Got some new projects by Stuffyaface.
29.1.2015 I`ve added some new projects, Stopwatch and Pen.
27.3.2015 I've fixed a few bugs with Stuffyaface's projects.
Monkeytrooper has added 4 projects catch the dot, A bit of luck night and day and catch the cat.
Monkeytrooper:
09/05/2015 i added 2 projects catch the dot and dot wars
Monkeytrooper:
14/05/2015 on the studio i changed picture so we have the PEC bird as well
16.6.2015 I've got a really awesome game coming called The Adventures of Felix
17.6.2015 The Adventures of Felix is here. It's not complete.
3.7.2015 Some updates on site.
Happy to welcome axel567.


# Lean Unconference #### DDD-GDA --- ![](/img/ddd/sponsors/bi-logo.png) --- ## Agenda 1. ⛏ Choosing a topic 1. 🧑🤝🧑 Division into groups 1. 🤼 Proceeding with one topic (1h) 1. 🗣 Sales pitch and sharing --- ## Step 1 - Implementation 10/25 1. 🃏 Each of us writes his idea on sticky note 1. ➰ Process is repeated 5 times 1. 🔔 You randomly switch cards until a signal 1. 🎓 In a pair You grade the idea 0-5 1. 📋 At the end we calculate final score 1. 🥇 Highest scores go to the next stage --- ## Step 2 1. Ideas are sticked to the board 1. Next to the ideas participants write their names on notes 1. We remove the topics that don't get minimum of 5 ppl --- ## Step 3 1. Talk for 1 hour 1. Use sticky notes to preserve the knowledge 1. Using Problem/Solution 1. Using Mindmap 1. Or something else 1. **You can change the group during the discussion** --- ![](/img/lean/ProblemSolution.png) --- ![](/img/lean/Mindmap.png) --- ## Step 4 - Sales Pitch 1. Try to sell your table to other participants 1. Share what topics and subtopics you crawled into 1. Share what you have learned 1. Share what can be read from sticky notes


--- layout: archive title: Zulip Chat Archive permalink: /stream/113488-general/topic/.22sorry.22.20in.20mathlib.20build.html ---
I just tried to build the latest mathlib (b15409291946) using the latest nightly Lean build (d6d44a19947e) and saw the following:
/Users/ctchou/Dropbox/Lean/mathlib-latest/tests/wlog.lean:55:0: warning: declaration '[anonymous]' uses sorry
/Users/ctchou/Dropbox/Lean/mathlib-latest/tests/wlog.lean:67:0: warning: declaration '[anonymous]' uses sorry
/Users/ctchou/Dropbox/Lean/mathlib-latest/tests/wlog.lean:76:0: warning: declaration '[anonymous]' uses sorry
/Users/ctchou/Dropbox/Lean/mathlib-latest/tests/wlog.lean:87:0: warning: declaration '[anonymous]' uses sorry
Are they to be expected?
Thanks!
Yes, that's in the test suite. I should change that
Thanks for letting me know!
{% endraw %}Last updated: Apr 24 2020 at 19:02 UTC


A layer of mucus on the clownfish's skin makes it immune eating with anemone's lethal sting.
- Scientific name: Amphiprioninac
- Average Length: 11 centimeters
- Average Lifespan: 7 years
- Habitat: Tropical coral reefs
Bright orange with three distinctive white bars. Clown anemonefish are among the most recognisable of all reef-dwellers. They reach about 11 centimeters in length, and are named for the multicolored sea anemone in which they make their home.


SAVE OUR SCHOOL NETWORK
Defend children's Right to Education!


Sadio Mane salvages last-gasp victory for Liverpool against valiant Villa
by By Press AssociationSadio Mane rescued Liverpool as the Reds’ late show at Aston Villa maintained their title charge.
The forward’s stoppage-time header earned a thrilling 2-1 win just as Jurgen Klopp’s side looked like losing their unbeaten Premier League record.
Andrew Robertson had equalised with just three minutes left to cancel out Trezeguet’s first-half opener for the hosts.
Klopp saw his unbeaten side maintain their six-point lead at the top after Manchester City’s 2-1 comeback win over Southampton.
The top two face off at Anfield next Sunday after they both narrowly avoided upsets on Saturday.
VAR had earlier created more controversy when Roberto Firmino’s first-half strike was ruled offside, forcing the Premier League to clarify the decision at half-time.
READ MORE
Jimenez strikes to increase pressure on Emery
Liverpool’s last visit to Villa Park saw them thump Villa 6-0 with the hosts waving the white flag en route to an embarrassing relegation three years ago.
But they faced a different, resurgent Villa this time, underlined by the way Anwar El Ghazi bundled his way through to fire at Alisson Becker after 31 seconds.
The hosts pressed and hassled Liverpool in the first half but the visitors, who had been subdued, should have opened the scoring after 16 minutes.
The Reds had barely threatened yet carved out the best early chance when, from Jordan Henderson’s lobbed cross, a stretching Mane headed wide from six yards.
A minute later Tom Heaton pushed away Mohamed Salah’s angled volley, only for Villa to take the lead after 21 minutes.
Mane brought down John McGinn and the midfielder’s delicious free-kick caught Liverpool cold to allow Trezeguet to volley in at the far post.
Trent Alexander-Arnold’s shot deflected over in response before Liverpool looked to have levelled just before the half hour.
Mane’s cross was tapped in by Firmino but he was flagged offside – and although VAR replays suggested the Brazilian was onside the decision stood.
At the break the Premier League stated on Twitter Firmino’s armpit was ahead of Tyrone Mings.
Salah ballooned over two minutes before half-time as Liverpool tried to raise their game after the interval.
Georginio Wijnaldum and Mane shot at Heaton but the Reds’ attack struggled to find the same wavelength.
Henderson’s poor ball snuffed out a breakaway chance and Salah’s wayward effort showed their lack of cutting edge at Villa Park.
Heaton blocked from Mane at the far post and Salah was withdrawn with Wijnaldum with 25 minutes left.
Liverpool continued to press and Adam Lallana blew a golden chance to level 18 minutes from time.
Alex Oxlade-Chamberlain’s introduction had added extra impetus and his cross found the onrushing Lallana, only for the unmarked midfielder to mishit his shot wide from eight yards.
Battling Villa refused to buckle, putting their bodies on the line to keep Liverpool at bay – until the 87th minute.
Mane’s deep cross found the unmarked Robertson and the Scot headed in at the far post from close range.
Then, in the fourth minute of injury time, Mane glanced in Alexander-Arnold’s corner to win it.
READ MORE
Late Walker winner sees Manchester City comeback against Southampton


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