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

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

How COVID-19 has affected mental health?

The pandemic has led to depression and anxiety and its negative effects shouldn't be ignored. However, it has also led some people to become more resilient! What do you think? Thank you.

21 February 2021 4,733 19 View

Where can I find raw quantitative datasets on ecosystem services?

I'm an Undergraduate student on the search for a research topic which has to involve any ecosystem service(s) and a response to environmental change. I'm looking for raw quantitative data sets (I...

19 February 2021 5,911 2 View

Can medicinal plants really play an inherent rule in the COVID-19 tackle?

Numerous scientific reports cited plant extracts with potential antiviral activity and even anti-COVID-19? Why these findings are neglected? I remember very well the warning released by the WHO to...

17 February 2021 2,141 9 View

How can I interpret a ratio variable?

Dear colleagues, I am running a regression in which I have the following regression FoodExp = 67.04 DepRatio +.....e My interest is in the interpretation of the coefficient on the dependency...

16 February 2021 2,058 2 View

Resume Book UEP2013 Asian Edition, dis somebodey has it?

I am looking for a copy of the resume book of UEP2013 Asian Edition (Urban Environmental Pollution 2013 Asian Edition) held in Beijing. If somebody has it, please I would like to obtain an...

11 February 2021 2,247 2 View

How to compare different models with different inputs and data length?

I want to run 5 different models to estimate stream flow. In order to optimize the characteristics of these models I use Taguchi method. So I have to run different models according to the Taguchi...

11 February 2021 7,986 6 View

Is this grounds for theophylline toxicity even though her plasma is within the therapeutic range? if it is, how is that possible?

A patient was given 300 mg Theophylline taken twice a day for the treatment of her bronchial asthma and has a positive clinical response. She has been compliant in taking her medication however,...

09 February 2021 3,489 3 View

Patients with chronic kidney disease could get COVID-19 vaccine?

04 February 2021 278 4 View

Having trouble with qPCR amplification plots. My curve's never seem to reach a plateau. Any ideas?

The parameters of the curve all seem acceptable, typically reactions results are above 0.9852, -3.1 to -3.6 slope, and 90-110% reaction efficiency. The results seem to be what I would expect from...

04 February 2021 1,138 3 View