How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

What is the best way to calculate sample size for a multivariate regression model for adequate power?

GPower is only equipped to deal with calculations of bivariate regressions and needs SD s for both predictor samples. However, if one has a multiple regression with more than 2 outcome variables...

12 February 2021 6,911 3 View

How Marcus free energy, reorganization energy is related to thermal effect for electron transfer state?

The molecules separation medium is associated to medium permittivity of Frenkel effect and naturally diverse environmental temperature may influence the electron transfer process in organic...

02 February 2021 5,168 3 View

Alpha synuclein lack structurw (i.e some of the helix part goes into turn ), any cause behind this?

I am trying to simulate alpha synuclein (1xq8.pdb) in GROMACS using GROMOS53a6 ff. I have run it for 200 ns. At the end of simulation alpha helix protein losses its helical structure. I am not...

31 January 2021 4,285 3 View

In which laboratory of India 13C NMRanalysis of solid samples could be performed?

I need to analyse some solid samples (soils) for 13C NMR. Is there anyone who can help me out? The contribution of the contributor would be properly credited during any sorts of publication....

07 January 2021 2,016 4 View

Why the presence of surface active compound repress the mass spectra of other compound? If the sample is itself surface active, then self repression?

I am assuming the resulting insertion/agglomeration in the presence of a surfactant or the agglomeration of surfactant may reduce the rate of ionization. The mobility of the ion may also be...

07 January 2021 987 5 View

What are the mental health insurance policies in different countries?

Post Covid 19 the scenario in India has changed and some of the private insurance companies are providing coverages for mental disorders. So My question is what mental disorders are covered in...

04 January 2021 6,474 10 View

In a microgel-DTPA suspension (in water), what can be added as a counter to TMEDA to adjust its pH to 6?

I have added a little extra TMEDA to the microgel-DTPA suspension and has reduced its pH. How can I bring it to pH 6?

04 January 2021 6,743 1 View

Does posting articles to Research gate gives any edge or credit to a student in Phd application?

Does posting articles to Research gate gives any edge or credit to a student in Phd application?

07 December 2020 4,001 3 View

Where to get free cancer patient demographic data?

Is there any freely available global repository to get cancer patients' demographic data? #cancer #cancer_research

06 December 2020 5,469 2 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

Can the intensity of this broad band in XRD mask other crystaline phases present?

I obtained a XRD diffractogram with significant broad band at low 2theta levels, also around 30 2theta another smaller broad band appears. It all points out to the existence of an amorphous phase....

19 February 2021 8,414 4 View

ECG and children with autism ?

Does anyone have experience with collecting ECG data on children with autism? How was your experience? I'm interested in the tolerance levels for kids to have wires attached to their chests. What...

02 February 2021 5,850 3 View

How to make a site-Selective Electroless Nickel Plating?

I would like to plating Ni/Au on the selected area. Can anyone give me a suggestion? It is a bit like to make golden finger on PCB board. Instead with the PCB board, I use polyimide as my...

28 January 2021 8,330 1 View

Please ,How can I correct this kind of error?

27 January 2021 4,815 5 View

How to extract isodose lines from radiotherapy dose cloud into masks that can be overlaid on images using python?

I'm able to load a dose cloud into python as a numpy ndarray using pynrrd. The next challenge is to extract isodose lines (like V50%) to create masks (bitmap images) that I can overlay onto other...

19 January 2021 8,503 2 View

What is the largest disadvantage in using of face masks at present? What would you like to be improved?

We all use face masks many hours a day. I wonder what are your items you like to be improved. We have the opportunity to write an application for support to a sponsor. Your answers will help us a...

18 January 2021 1,311 4 View

How should I create (which bands) a water mask for the NDSI index based on Sentinel-2 images? and Which Modis product should I use to validate?

Hi Everyone! I do my thesis about snow melting in Austrian Alps and I have some issues. I would like to create a water mask to filter out the water bodies from the study using Sentinel 2 images....

15 January 2021 4,560 1 View

[Covid-19] GGO Evaluation - CT imaging of the lungs ?

13 January 2021 3,115 4 View

Can I measure lung weight after formalin fixation?

Hi, I have simple quick question. Can I make a measurement of mouse lung to evaluate lung metastasis after formalin fixation? Is it not reliable? Thanks.

11 January 2021 3,178 3 View