Which polarizers are usually used to measure the birefringence of zebrafish muscles?

I already found several publications on that topic, however, the specifications for the used filters are often missing. Some more specific information than "fish is placed between to polarizing...

23 February 2021 1,934 1 View

How to calculate the Atomic Polar Tensor using DFT ?

Dear friends, I am a beginner at DFT calculation. I have done a structure optimization using DFT- B3LYP/6-31G*, Nevertheless, I don't know How to calculate the Atomic Polar Tensor (APT) in...

17 February 2021 9,082 3 View

Should I make 2 helical antennas? One for 2.4 GHz and another for 5.8 GHz?

Should I make 2 antennas, one for 2.4 GHz and one for 5.8 GHz? How should I approach the problem if I want to design the antennas which cover 400 and 900 MHz and 2.4 and 5.8 GHz? All together in...

26 January 2021 906 3 View

Strong and extreme winds in the Arctic?

Hello everybody! Looking for a good source of information on strong and extreme winds in the Arctic (monthly values, annual extremes etc.). The form of maps (with isolines) will be most...

25 January 2021 8,984 4 View

Helicoverpa armigera eggs are not hatching in lab condition, why?

Dear RG friends, I am providing a complete H. armigera diet for larvae and maintaining the eggs in the growth chamber as well as in-room conditions. But since three months, eggs laid from the...

21 January 2021 5,546 32 View

SPSS - PLUM: Shall I introduce binary variables as covariates?

I am doing an analysis of interaction effects, using PLUM in SPSS. My question is if the binary variables, that i have constructed to analyze the interaction effects, should be introduced as...

17 January 2021 8,217 4 View

Detection of insect eggs in stored and processed products?

Currently, in order to identify insect eggs in stored or processed products (such as contaminated flour or wafer samples), staining was performed based on the method mentioned in the below...

15 January 2021 6,362 5 View

Has anybody a protocol to determine the AChE activity in larvae zebrafish brain?

Even following the instruction of Karnovsky and Roots (1964), I still do not know how long I should fix the larvae and in what fixative. Could anyone help me? Thank you!

14 January 2021 385 2 View

Guidance in choosing a column for UHPLC quantification of organic acids in cranberry and blueberry fruit?

07 January 2021 6,214 3 View

How to make open-top chambers?

Hi, I wonder if someone would share experience with building open-top chambers for surface heating of soil. My main question is what material can be used to build them? I found researchers using...

05 January 2021 5,396 6 View