How to calculate sample size for testing the validity of a new screening test in hospital setting?
I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...
02 March 2021 8,437 2 View
I am looking for supporting studies discussing literature limitations on the relationships between digital capabilities, market orientation, brand perception and business performance. Also, a...
14 February 2021 7,457 5 View
Hello there.. I've recently submitted my master thesis in marketing. As a reseacher, I now know that the purpose of a master degree is to know academic research tools and how to do and write an...
09 February 2021 6,692 9 View
Dear colleagues I have the following questions concerning the safety of mRNA vaccines targeting the spike protein of SARS-Cov2: 1) The vaccine elicits antibodies which block the peptide domain...
04 February 2021 721 6 View
Also it's effects on plants.
22 December 2020 2,318 3 View
Dear all, I have right now a problem with measuring the charge mobility of different polymers. I have built different types of thin layers OLEDs using different thickness types of polymers. In...
01 December 2020 5,673 4 View
Hello I am trying to do flowcytometry for BAL fluid so i inject1ml of PBS into the trachrea and aspirate back(this done three times) . to calculate the cell count in bal i use a cell counter...
16 November 2020 2,367 2 View
I want to test chitosan nanoparticles as antimicrobial against pseudomonas How to use resazurin microtitre assay????
08 November 2020 9,533 2 View
I received a bottle of PMMA in solution with no information about which solvent was used, so I started using acetone to dilute the original solution. I had not experienced any consequences or...
03 November 2020 4,065 4 View
Hello, I am trying to model a four point bending for RCC beam using abaqus CDP model. I used displacement control type. The issue is whenever I change the value of the applied displacement, it...
25 September 2020 4,395 2 View
Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...
01 March 2021 2,215 2 View
01 March 2021 3,905 5 View
I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...
01 March 2021 1,587 6 View
Pls share your thoughts
01 March 2021 7,330 4 View
Hi, I am trying to learn the theoretical modelling of silver nanoparticle using the Mie scattering theory. After that, I discovered a software named Mieplot developed by Philip Laven, where it...
25 February 2021 7,493 6 View
I am trying to calculate the theoretical density of my ceramics materials. I use the formula below to calculate the theoretical density: Theoretical density = (Molecular weight x No. of molecules...
24 February 2021 3,823 2 View
I'm in the process of updating a meta-analysis and in one of the new studies, effect sizes are reported as Tau-U. Two of the effect sizes are reported as Tau-U = 1.00. I am using Andy Field's...
24 February 2021 2,265 3 View
How do I run a a priori sample size determination for non-parametric tests, like the Mann-Whitney U-test and the Kruskall-Wallis or other non-parametric tests that accord with the unpaired t-test...
24 February 2021 166 6 View
I need to conduct a a priori sample size determinations for t-test with unequal means, but I don't know the sizes of the groups nor the ratio of both groups... Can I do a sample size determination...
24 February 2021 8,289 3 View
Hello, I am running a sandwich-type ELISA where I am trying to inhibit a protein-protein interaction using small molecules. For each experiment, I determine my Z' (Z-prime) to determine the...
23 February 2021 7,429 1 View