There is an empirical o theorical relation between band gap and electron affinity?

I am working on the simulation of a solar cell and I am using a ternary compound, for the gap the "Vegard's law" applies, but what about the electron affinity? Is there a relationship I can use?

30 March 2020 7,662 5 View

How I can solve this error message of my MD simulation using Gromacs of a protein that contains ZN binding site?

I am performing a molecular dynamics simulation from CRBN protein (PDB ID: 4tz4), which contain a ZN binding site composed of four cysteines. The main goal is understanding the chemical and...

21 July 2019 8,067 3 View

How to prepare liver slices for organotypic culture with the Mcillwain Tissue Chopper?

Hi all, I would like to work with organotypic culture of liver slices, but I have no experience. I practiced with pork liver from the butchery, but I failed in doing the slices. The problem was at...

02 April 2019 5,217 3 View

No title

20 October 2016 4,363 4 View

Can someone help me identify this insect?

18 March 2016 7,471 7 View

Why do my WISH and qPCR results not match in zebrafish embryos?

I have done some qPCR and WISH for the same pool of embryos at 4hpf but the results are diferent, specially for ventral genes, such as vox and vent. The area of expression is reduced by doing WISH...

08 July 2014 547 8 View

Why do my WISH and qPCR results not match in zebrafish embryos?

I have done some qPCR and WISH for the same pool of embryos at 4hpf but the results are diferent, specially for ventral genes, such as vox and vent. The area of expression is reduced by doing WISH...

06 July 2014 7,544 9 View

Could someone provide a reference to software to retrieve sequence around the summit position of peaks from a BED file?

I am doing ChIP-Seq analysis, I already have done the peak calling and obtained the BED and WIG files of my peaks. Now I want to retrieve 50 bases around the summit of the peaks in FASTA file. I...

25 May 2014 2,640 2 View

Questions about miRNA microinjection into Xenopus oocytes

I want to inject miRNA from Xenopus sperm with different treatments into fertilized oocytes and watch for any developmental abnormalities. Because I'm new with this kind of techniques I have some...

28 March 2012 7,066 2 View

Has anyone performed an adhesion assay for cells expressing CD62L using recombinant CD34 as the ligand?

I recently attempted with an experiment in which I coated a microtiter plate with CD34(800ng/mL) and allowed cells to adhere for 2 hours. I washed the cells twice and used the MTT assay as a...

14 March 2012 2,756 1 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

Looking for genomic DNA extraction kits from mouse tissue (centrifuge-based, not spin-column)?

Hello. I am looking to extract genomic DNA from mouse brain and lungs and I need a kit that is not spin-column based because I need to scale up the solution amounts for 400mg tissue (most cap at...

25 February 2021 155 2 View

How can i perform logistic regression on nominal vs scale variables in SPSS?

Dear all, I would like to perform a logistic regression analysis on the correlation between surgery duration time represented in minutes (Scale independent variable) with rate of neuropraxia as...

14 February 2021 4,054 3 View

How do I understand the relationship of age and the answers on Likert scale?

Hi people, I want to see the relationship between 4 age categories and Likert scale questions on SPSS, which method or test is the best to find that out? To be more exact, I want to measure if the...

10 February 2021 2,241 3 View

Does anyone have a stack of images of action potentials or abnormal brain scans?

I need a stack of black and white .jpeg/.tiff/.jpg/.png images across time of either action potentials, neurons firing, or brain scans (comparing disease and normal brain, disease progression,...

09 February 2021 2,648 3 View

Where can I find the Affiliate Stigma Scale developed by Mak and Cheung?

Need the scale for a dissertation. Would be better if I could get it for free since my work is not funded. I need the English version of this scale.

09 February 2021 4,022 3 View

Any recommendations for open-source survey form builder, which has option for semantic differential scale questions apart from Likert scale?

Asking this as Google forms doesn't allow multiple items in a semantic differential format.

04 February 2021 5,869 4 View

Can I add a neutral option in a 4-point Likert scale?

Hello, I want to use a motivation scale with my students (secondary school) for my research, but the scale is in a 4-point Likert style with no neutral option (Certainly true - True - Not True -...

04 February 2021 4,757 13 View

How do I scale up a column for preparative isolation/purification from analytical conditions in HPLC?

What protocol should I follow to determine optimum separation conditions using an analytical column in an HPLC system?

03 February 2021 7,288 3 View

Hello friends, happy evening !! I am just wondering if you would know where I can find the (ALTS) altruism scale by S.N.Rai and S Singh to download ?

ALTS is an altruism scale developed by S.N Rai and S.Singh.

02 February 2021 7,243 2 View