Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

What is the significance of (isolated) high titers of IgG anti GD1a antibodies in an older patient with polyneuropathy?

Remote history of Campylobacter infection with reactive arthritis, and Spitz nevus (UMP). Arthropod exposure in Zika/ChikV endemic area prior to emergence of length dependent, sensory PN with...

18 February 2021 8,719 1 View

Can Qualtrics generate reports for survey respondents that show their answers to selected questions?

I am using Qualtrics for a Delphi survey. Does anyone know if Qualtrics can generate reports that I can send to respondents. More specifically, I want to send respondents a report of their...

13 January 2021 7,976 3 View

What are health and agricultural econmic impact of the herbicide 2,4-dichlorophenoxyacetic_acid (2,4-D) in your country?

Dear Research community, I am writing a review about 2,4-D. Google Scholar has identified 11000 publications with this herbicide as a keyword since 01/01/2018. There is plenty for me to read....

29 December 2020 1,145 6 View

What are the ethical considerations when conducting research with students who are paying for a private course?

I'm going to be teaching an online course to minors using game-based learning strategies. I wasn't to make sure I consider ethics considering students (likely their parents) will be paying to take...

12 December 2020 6,497 11 View

No host reference for metatranscriptomics?

One of the steps during the preprocessing of the data from metatranscriptomic analysis is to remove any host reads (host contamination) by comparing to host database. But what if there is no host...

30 November 2020 3,259 2 View

Primer specificity check with primer blast individually or together?

Hi, When checking my designed primers for specificity, what is the difference if I run BLASTn for each primer individually versus together (ie. forward primer separated by 20 "N" then reverse...

03 November 2020 1,421 4 View

To what extent do motorhomes and other large vehicles degrade road surfaces in relation to cars and other light vehicles?

I am studying the effects on the road system of a rural region of a drastic increase in traffic, particularly Motorhomes. My question is this, do motorhomes and other large vehicles have a...

22 October 2020 8,146 3 View

How to calculate pKa's using DFT for a molecule with three acidic hydrogens?

The molecule in question is a molecule with 3 non-equivalent hydrogens. Am I going to have to run the calculations in all of the transition states?

18 October 2020 1,524 3 View

Gibson Assembly Produces Wrong Product?

I have been using Gibson Assembly to insert a 7kB fragment into an 8kB linearized vector. After assembly many colonies form, but colony PCR on the transformation consistently shows a 1.5 kB...

18 September 2020 247 3 View

How can I measure MMP-1 protein activity or protein level from liver tissue?

Instead of checking only the mRNA level, I want to check the active protein level of MMP-1 in Liver tissue from mice. How can I do that?

03 March 2021 1,763 2 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

How to manually calculate p value in ANOVA? what is the equation or formula for it?

How to manually calculate p value in ANOVA? what is the equation or formula for it?

03 March 2021 4,928 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 View

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03 March 2021 5,360 2 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View