Preparation of 1-carboxlic acid ethyl edter
Hello, I would like to ask which is the best terminology to use for describing a negative control in an experiment (drug testing in-vitro, viral infection): NC (negative control) or NTC? Thank you...
18 July 2024 4,183 2 View
In SPSS 25, I have a categorical variable which I would like to display in a frequency table. However, one of my categories was not selected by any of my respondents. I can generate a frequency...
31 May 2024 2,076 3 View
book or article
20 May 2024 2,488 3 View
I regress X to Y: ,direct effect (c) M: mediator: I regress X to M (a), M to Y (b) Total effect = c + a*b now i introduce a moderator effect between X and Y How i calculate the total effect with...
08 March 2024 9,816 1 View
I am researching pronunciation and correct articulation among EFL students. I have a list of "problematic sounds" that students often struggle to pronounce, and I am trying to analyse those sounds...
24 December 2023 8,504 2 View
Explanation: Let I have downloaded 25,000 from Scopus database. I have all DOI in a csv file. Now what is the procedure to get RG statistics (read, citation, recommendation etc) in excel file. I...
02 December 2023 9,744 1 View
Why sodium hydroxide can cause increasing the fluorescence intensity for a fluorogenic reagent however acetone completely diminish fluorescence peak of the same reagent?
09 November 2023 3,715 1 View
What is the reason making the cyclic voltammograms looking so noisy like in the uploaded picture? is it a bad connection? something wrong with the instrument? or bad graphite source?
30 October 2023 162 3 View
Hello Scientific community, i'am seeking an oceanographer with expertise in satellite data analysis, specifically data from Sentinel-2A, to help me understand the reasons behind the excessive...
06 October 2023 8,909 0 View
hello, i am intersted in the cause of getting higher concentration of RNA when using the acid phenol chlorofom extraction to the qiagen kit.. i am extracing RNA from cells and i tried both method...
18 September 2023 6,480 0 View
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.
07 August 2024 8,782 3 View
Dear readers, Thanks for your attention. I am wondering about the health economic problem of quantifying the value of interventions which a) prevent, b) improve symptom profile and c) ultimately...
05 August 2024 3,246 1 View
I am attempting to conjugate PEG to an amino acid at the C-terminus, for the purposes of producing nanoparticles. I have been told that PEG modified with amine groups can be used for this purpose,...
31 July 2024 2,033 1 View
Hi, researchers, Is it possible to use a safer acid instead of monochloroacetic acid to convert bacterial cellulose to carboxymethyl cellulose?
29 July 2024 4,570 0 View
I am currently performing cell-free DNA (cfDNA) extraction from plasma using an in-house developed kit that employs silica-coated magnetic beads. My protocol works effectively with plasma obtained...
28 July 2024 3,559 0 View
I have been looking for the principle of Cysteine-carbazole-sulfuric acid reaction in research papers and books, but couldn't find it. This reaction is mainly used for the quantification of...
23 July 2024 3,891 0 View
Sulfuric acid has changed color to yellow.
16 July 2024 6,964 0 View
Hi, Attempted to extract cfDNA from a 4 mL plasma sample, with poor yield. Went through the manual in the section regarding poor yield, and feel that this does not apply. Some potential...
14 July 2024 7,475 1 View
Hi all, I am conducting research on screening peptides (20-35 amino acids) with potential for treating dengue fever through protein-peptide docking methods. In the protein database, I found the...
10 July 2024 8,037 1 View
Penconazole 1. CGA 132465 2. CGA 190503 3. CGA 127841 Fluopyram 1. AE C656948-benzamide 2. AE C656948-pyridyl-acetic acid 3. AE C656948-carboxylic acid I have searched on sigma aldrich as well...
09 July 2024 3,414 2 View
