Does anyone have a recommendation for yeast reporter gene plasmid/protocol?

Hi, could anyone recommend a plasmid and/or protocol for reporter gene assay in S. cerevisiae? I want to assess the effect of growth conditions on a transcription factor, so I want to clone it`s...

01 March 2021 210 1 View

Plant research: Watering uniformity/consistency. How important is it?

Trying to gather insight from an unresolved discussion with a colleague here, and either the available literature surrounding this topic and/or my keywords in search of are lacking. Context:...

21 February 2021 6,389 3 View

How to get rough estimation of the concentrations of Oxygen and moisture inside the glove box?

Dear colleagues, I was just wondering if you can suggest a good method to get a rough estimation to the concentration of O2 and H2O inside the glove box as unfortunately, our glove box doesn't...

17 February 2021 1,012 3 View

Onset of Photo Oxidation in Polymers?

Hi! I am looking for some specific information in regards to the minimum amount of UV intensity required to begin the photo degradation process in polymers. I understand each polymer is...

15 February 2021 7,703 4 View

Are you looking for a quality online conference on teaching and learning technology?

This large international conference will be held online this year due to COVID. I am submitting a paper to the Technology Enhanced Language Learning track (8). It is about a topic I have never...

15 February 2021 1,975 15 View

How do you calculate a discrimination index for polytomous data?

Hello, I'm currently running a PCA on a polytomous data set (5 point Likert). I want to create a discrimination index to narrow down my items before running the PCA. After looking around, I'm...

13 February 2021 3,517 2 View

Regarding immunology, transmissivity, herd immunity and vaccines in Sars CoV-2?

This is a follow-up on an earlier question regarding mechanistics of vaccines: why current vaccines don't block transmission. In summary, they don't engage mucosal immune cells to produce IgA....

08 February 2021 8,321 3 View

Which tropical country is the most easy for obtaining research permit (for biological research)?

Dear all, High beurocracy hihly complicate field ecolocial and evolutionary research nowadays. Nearly all tropical countries (maybe all?) requires research permit for performitng research and in...

04 February 2021 3,672 6 View

Can I polymerize NIPPAm with PEGmethacrylate or only with PEGacrylate?

I want to perform the synthesis of a hydrogel and I want to know if I can polymerize NIPPAm with PEGmethacrylate or only with PEGacrylate?

02 February 2021 2,106 6 View

What is the maximum storage time for samples used in soil enzyme assays?

01 February 2021 4,616 3 View

Can we recognize signs of the "volatility clustering" property of a time series in its time domain plot?

My purpose is to recognize the volatility clustering property without statistical tests such as The Lagrange Multiplier (LM) test.

24 February 2021 4,150 3 View

How to input an exogenous variable in a GARCH model?

Hello, I have a question regarding financial time series. I am studying the effects of Quantitative Easing on the US stock market. I have tried to fit an ARIMA model to my S&P500 returns with...

01 February 2021 8,325 3 View

GC-Headspace (HS-GC) chromatography for Forensic toxicological and Food expertises?

Dear Colleagues! How correct and appropriate is it to conduct forensic toxicological and food examination of volatile substances (ethanol, methanol, propanol, ethyl glycol, etc.) in blood and...

24 January 2021 5,645 2 View

What are state-of-the-art methods/techniques/algorithms for the root-cause analysis of the anomalies?

I have been looking for research articles that target the question "why did an anomaly occur?", however, most of the papers that I found are related to "if an anomaly occurred?". I searched Google...

12 January 2021 7,951 3 View

How weight of carrier and coating material calculated in formulation as taken in ratio?

In liquisolid technology, carrier and coating material in ratio taken the add non volatile solvent then check angle of slide then how weight of carrier and coating material calculated to add in...

09 January 2021 9,589 5 View

What is the best way to maintain constant concentration of a volatile organic liquid in an open experimental set-up?

The purpose is to keep a NAPL (eg Toluene) concentration constant in an open tank set-up.

27 December 2020 7,325 2 View

How to handle missing values?

Dear colleagues, What can you suggest in order to fill the missing values, as you can see in the picture? Best Ibrahim

24 December 2020 4,834 5 View

Hosking's Multivariate test?

Hi. I'm running a multivariate GARCH model. When I introduce un AR(1) in the mean equation, all the diagnostic tests on Standardized Residuals and squared residuals are perfect (Q-Statistics,...

18 December 2020 9,898 2 View

Should GARCH models be fitted on the residuals or log time series?

I am working on a research topic that needs me to forecast the performance of different models. i need to fit the models. I don't know if I should do that on residuals or logged time series. I...

17 December 2020 9,971 3 View

ARDL bounds test on Eviews: does multicollinearity impede the model from running?

Hi everyone, I hope I can get some help. My group is running an ARDL bounds model to test the Environmental Kuznets Curve in Cyprus. We're trying to perform it on Eviews, but we can't seem to be...

02 December 2020 9,230 4 View