09 June 2016 1 1K Report

I'm interested in groups of compound which are the most common in acetone extracts

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Paleo climate layers for WorldClim 1.4?

Hi everyone, I'm trying to download the Paleo climate layers for WorldClim 1.4 from the official site: https://www.worldclim.org/data/v1.4/paleo1.4.html But all links seem to be broken. Does...

14 July 2024 5,777 1 View

Why are tensile tests of rolled sheets preferably performed on samples parallel to the direction TD and not RD? What makes it more critical?

Why are tensile tests of rolled sheets preferably performed on samples parallel to the direction TD and not RD? What makes it more critical? This preferable orientation is used in papers, and also...

04 May 2024 7,390 1 View

How to claculate Moduli from obtained MSD?

Hello everyone, I am looking for simple program to calculate storage and loss modulus from MSD (obtained from FCS measurements). Can anyboby help or provide link? Than you very muc.

10 October 2023 495 3 View

How to desig ann online platform for assessing climate in multicultural schools?

Please provide any ideas or comments regarding needs of schools attended by foreign students in your country.

12 August 2023 2,945 1 View

How to desig ann online platform for assessing climate in multicultural schools?

Please provide any ideas or comments regarding needs of schools attended by foreign students in your country.

12 August 2023 9,855 1 View

Is it still available QuickFit program (version 3.0, evaluation of FCS)?

Does anyone happen to know if there is still an installable Windows version of the QuickFit program (version 3.0, evaluation of Fluorescence Correlation Spectroscopy)?

02 April 2023 383 0 View

Can alkyl chloroformates undergo Friedel-Crafts acylation with arenes?

I plan on using ethyl chloroformate in particular, and that with a phenyl ring. Would this be plausible? I would assume the resonance participation of the adjacent, ester oxygen would stabilize...

04 December 2022 5,152 0 View

Can chloromethyl pivalate, and any beta-haloketones/esters, undergo Friedel-Crafts alkylation?

I require a Friedel-Crafts reaction with chloromethyl pivalate as my reagent, and an alkyl benzene - I couldn’t find any literature on this reaction on the web. I was wondering if anyone had any...

30 October 2022 285 3 View

What are the recommended laboratory conditions (temperature, humidity, etc.) for the NanoDrop?

Hello, my section at my department has purchased the NanoDrop instrument and we are currently debating where it will be located. One of the suggestions was in an open air laboratory, which has me...

29 June 2022 6,647 0 View

Use of niche models in invasive species risk assessments. Native range vs whole distribution?

I'm trying to model the future potential distribution of an invasive species in Europe. Its native range is in North and South America but has recently spread to Asia, Australia, and parts of...

05 April 2022 6,123 2 View

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Hey there, As a synthetic chemist delving into theoretical calculations for my imidazolium-based organic molecules, I would greatly appreciate any guidance on the appropriate input instructions...

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RNA Extraction Using Hot Borate Method No Longer Working?

I've been performing RNA extraction on cotton petiole tissue for a few months now using the method described in the following paper, a derivative of the typical hot borate method...

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Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

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Low-yield gel extraction problem?

I am having an issue with my gel image where my PCR product is not appearing very bright on the gel. When I perform gel extraction, the A260/280 purity value is very low. I used the Qiagen gel...

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Do you have good tips for seaweed tissue preservation in the field for post RNA extraction?

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04 August 2024 501 2 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

The question is how to use Wavenet transform?

HOW CAN I WRITE A CODE TO USE THE WAVENET TRANSFORM AS A FEATURE EXTRACTION METHOD INSTEAD OF DWT IN MATLAB?

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How to convert g/kg Humic acid dose to kg/ha?

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