Is there any algorithm for finding a minimal spanning path? Thanks.

A minimal spanning path in a graph is a path that contains all the vertices of a graph whose weight is the least among the spanning paths.

02 March 2016 6,300 4 View

Any international professional association for mathematics and mathematics education that I can be a member of?

I want to become a member of international professional organization for mathematicians and teachers. Any suggestion? I am a member of SEAMS. Thanks.

07 August 2015 6,933 2 View

Parental Math Anxiety, what can you say?

I came across this article in Yahoo! and I want to know your reaction on this. https://www.yahoo.com/parenting/how-parents-math-anxiety-can-affect-kids-126441992877.html Thanks

07 August 2015 7,506 0 View

I just came across Khan Academy, can you share your experience with KA?

I am planning to use Khan Academy as part of my teaching strategy. I would appreciate any comment, experience you want to share regarding Khan Academy. Thank you.

06 July 2015 790 3 View

It is true that a triangle has at least three sides. Can the same be said about squares?

Since a square has four sides, is it true that it has at least 3 sides?

06 July 2015 7,849 5 View

Are you having problem with your research gate account?

I am having problem with my account. The displays are not complete and I can not view or download uploaded materials. Are you experiencing the same? Thank you.

05 June 2015 4,989 3 View

Would requiring students to write a reviewer for a quiz help improve the students performance in the exam?

If a student prepares a reviewer before a quiz, would that help him learn more and consequently improve his performance on the exam?

05 June 2015 3,693 9 View

I am doing a study on social media as a tool for teaching. Can you help me on this?

The attached survey is for mathematics teachers. I would appreciate it much if you could take some time to answer it. Thank you!

04 May 2015 8,687 8 View

Anyone familiar on cycle derivatives of graphs and materials regarding this?

If G is a graph, the cycle derivative of G is a graph G' whose vertices are the cordless cycles of G and that two vertices c1 and c2 are adjacent in G' iff they are cordless cycles in G sharing...

03 April 2015 3,188 2 View

What is the counting crossing number (CNN) algorithm?

CNN is an algorithm developed to count the crossing number of generalized petersen graphs.

02 March 2015 5,761 2 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View