Science Education Research: What are the common methods of data analysis in science education research?

Educators/researchers in the field of science education research, can you share some tips how you analyze the pre-/post-test survey data? Thanks in advance.

06 July 2019 6,328 9 View

Phylogenetics: What statistics are used to indicate clade supports in phylogenetic analyses?

In our lab, we have been using bootstrap statistics and posterior probabilities (in case of Bayesian trees) to assess clade supports in phylogenetic analyses. I was wondering if there were other...

05 June 2019 5,145 9 View

Climate Change and Citizen Science: Does anybody have research articles about climate change effects on plant species distribution?

Our preliminary data on White mulberry in North America indicates a shifting distribution-range within the last fifty years or so. We are looking for good articles that discuss effects of...

01 January 1970 6,927 9 View

Plant Systematics (Taxonomy, Phylogeny and Evolution): Do you know the Latin name of mulberry plants in your area?

We are working on the taxonomic revision of the genus Morus (family Moraceae). Can you share one photo of a fruiting branch of mulberry or herbarium specimen from your area, (and its Latin...

01 January 1970 1,566 6 View

Ethnobotany: What do you know about chemical profiling of plant species in the genus Acorus and their medicinal values?

Hello, I have American Indian students interested in studying active ingredients in Acorus species. I am sure there have been some prior works. If you know any, could you please share such works...

01 January 1970 8,593 3 View

Ethnobotany: What are the best methods out there for chemical profiling of medicinal plants?

We have two Native American undergraduates interested in chemical profiling of plant species with potential medicinal values. Can you share what methods you have been using for chemical profiling...

01 January 1970 6,817 7 View

Molecular Systematics: Can neighbor-joining method be used for phyogenetic reconstruction?

Some programs list neighbor-joining method under phylogenetic analysis. Some papers have used N-J clustering patterns to discuss phylogenetic relationships. Wouldn't it be ideal if the genetic...

01 January 1970 9,896 16 View

Population Genetics question: How many micro-satellite markers are minimum for a publishable data in population genetics?

For a population genetics of a plant species, we are able to cross-amplify seven micro-satellite markers developed for another species within the same genus. All of the markers seem polymorphic...

01 January 1970 6,919 4 View

Undergraduate Mentoring: What do you do to motivate undergraduate students in research?

We work hard and often fail to motivate undergraduate students in research. Research internship scholarships or capstone requirement are key motivators. Can you share how you motivate your...

01 January 1970 7,832 7 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

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View