How can I build one phylogenetic tree for an arthropod community when I had known their scientific names?

I am working on the phylogenetic analysis for communities of plants and arthropods. A standardized protocol of building phylogenetic tree for plant species list that was widely used in studies....

29 December 2020 181 3 View

Article of hierarchically structered porous nanofibers by electrospinning?

Hello folks I'm looking for the artice which shows difference of hierarchical structures between membranes and nanofibers. From introduction, I remember it kinda said: hierarchical membranes are...

15 September 2019 470 1 View

How to use mass-spec to detect covalent bonding of a dimer complex?

Hi all, I have a protein supposed to be around 20 kDa, but somehow on SDS-PAGE it runs at 40 kDa and previous literature also showed the same behavior and suggested a dimer complex. I am little...

30 July 2019 4,279 3 View

How to test the physical and chemical stability of solution or colloid?

How to characterize the stability of DMF ( N,N-Dimethylformamide ) or DMSO ( Dimethyl sulfoxide ) solution of Lead Iodide? Can you give me some advice or references? THANKS

06 June 2019 6,073 1 View

How to digest bacterial EPS at physiological temperature?

My bacterial biofilm tends to aggregate and agglutinate and I want to separate them at physiological temperature (25 - 30 C) in liquid. Any good suggestions of enzymes and preferably with...

28 January 2019 4,966 3 View

What is size of a rat hippocampus cell?

I am trying to building some microchannel devices currently to culture neurons, but I want to know the initial size(diameter) of the rat hippocampus cells (before they formed the axon and...

20 December 2017 4,748 3 View

A good way to analyze miRNA qpcr data when only 1 reference gene(it turns out unstable by genorm stability ranking across the samples) is included?

Dear all, I'm looking for a proper way to analyze my miRNA qpcr data. The study was aim to screen 10+ miRNAs which have been reported to have strong relationship with a certain disease in the...

13 February 2017 9,642 3 View

Complex permittivity at DC field?

The complex permittivity of a material is typically written as epsilon=epsilons+i*sigma/omega.(epsilons: the real part, sigma: conductivity, omega: angular frequency). As we know, any material has...

14 November 2016 1,951 5 View

How to dissolve DMBA in corn oil?

I want to dissolve DMBA in corn oil or sesame oil to oral feed the mouse to induce mammary tumor, according to many protocols published. But the question is how to dissolve DMBA in oil? Should...

17 July 2016 8,935 3 View

Convergence conditions of a stationary iteration method for linear systems?

Recently, I obtain a linear system, $Ax = b$, where $A$ is a nonsingular, strictly diagonally dominant $M$-matrix. Then I also got a matrix splitting $A = S - T$, where $S$ is also a nonsingular,...

27 June 2016 6,904 4 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

Does anyone know to clarify these changes?

01 March 2021 1,290 2 View

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

How relevant is Mini slump cone?

for all the rheology researchers, my question is, how relevant is a mini slump cone (smaller than a standard 50 cent rheometer). currently based on testing, the thickness of slumped material is...

26 February 2021 3,668 1 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

How to reduce residual stresses in MD simulation?

I am working on a preparation of representative polymeric structures of some popular polymers, such as polyimide or PTFE for MD simulation, during which a single nitrogen or oxygen atom will be...

24 February 2021 8,105 3 View