What are the molecular determinants for formation of adducts in electrospray mass spectrometry?

Dear all, depending on the molecular structure of an analyte different adducts during the electrospray process are formed. Even when high (up to 5 mM) of ammonium salts are present in the LC...

13 May 2020 6,621 3 View

Can I use an Aminex HPX-87H column to analyze sugars in samples with high concentrations of urea?

I have some extracts with sugars in low concentrations, so diluting isn't ideal, and there's about a 17 % of urea (from the solvent). Can the urea damage the column or affect the analysis?

12 September 2019 6,337 1 View

Presence of ZnAl2O4 by XPS?

I have a coating with 2 different layers (Al and Zn). After a process under temperature, I want to evaluate the presence of ZnAl2O4 among other oxides (mainly Al2O3 and ZnO). Is possible to...

16 June 2019 9,675 3 View

Pcr product below marker?

i have extracted bacterial genomic DNA, and after running multiplex PCR on it, i got blurry thick bands below marker. the marker used is 100 bp. i checked using nanodrop and diluted the DNA conc...

26 April 2018 8,847 7 View

Soft agar colony assay: Where should I put my treatment ?

I am performing a soft agar colony assay using 2 different cell lines. Both are able to make colonies. So now I want to test a specific drug and see if it can affect their capability for making...

15 December 2016 4,656 3 View

What affects to disappearance of a diffraction peak in XRD?

My diffraction spectrum from Mg-Al LDH with intercalated carbonate and hydroxide lost its 003(hkl). The 006 is small but visible similar to 015. Other peak intensities remained the same. Albeit...

31 March 2016 1,304 3 View

Can anyone recommend any information on edible insects and production of edible insects?

21 February 2015 858 9 View

Computation generalized variance inflation factor in SPSS

Dear all, how can be computed a generalized variance inflation factor (GVIF) for a whole categorical variable (more than 2 categories) in SPSS? SPSS computes only seperate VIF for each...

01 January 1970 2,345 3 View

No title

01 January 1970 543 3 View

Convention for standardized regression coefficient (beta)

Hello, I would like to ask a question. Is there a convention for interpreting a standardized regression coefficient (beta)? For example Beta =.5 is interpreted as an medium influence? Thanks...

01 January 1970 5,079 3 View

How to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 View

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View

What are the patterns of human behavior that lead to COVID-19 infections?

Does data from contact tracing help in establishing patterns of behavior and social interactions that lead to infections? There are cases here in the Philippines where patients have no travel...

25 February 2021 9,002 13 View

Why cannot world and community leaders be gentle? Where did ethics of care go?

The whole world is in a mess and paused. We all are tired of seeing hypermasculinized and destructive leaderships all around us. This world has seen enough of the aggressive patriarchal social...

23 February 2021 292 7 View

How to perform Haldane correction on SPSS?

I was wondering if anyone knew how to perform the Haldane correction for SPSS (this is the definition of the correction -...

21 February 2021 2,882 1 View

Is it okay to mention you distributed your qualitrics study link through social media sites?

Just want to be clear and know it is okay to say I have distributed the qualitrics link through social media such as Facebook, Instagram and Twitter to ensure my target audience is reached in my...

21 February 2021 5,143 2 View

What are your alternative data collection methods during the pandemic? What are the pros and cons?

Dear colleagues We are exploring possible data collection methods for environment and behavior research in the context of architectural environments. Have you conducted any Post Occupancy...

16 February 2021 2,575 4 View

Are there papers on?

I'm looking for a papers concerning either Christianity or neopagan religions and social media. What role does social media play in the spread of these religious movements? Any suggestions on the...

15 February 2021 655 4 View

How to Measure Consumer Willingness To Change from petroleum-fueled vehicle to electric vehicle?

I wanted to calculate the probability of one consumer shifting from using a petroleum-fueled vehicle to an electric vehicle. Since my background is in engineering I do not know much about how to...

15 February 2021 9,190 5 View

Any way to separate out fluorescent channels from a composite image?

Hi there, I've been using the EVOS Auto II microscope for some time now and usually I will save the transmitted light/bright field image and the images from fluorescent channels as separate...

15 February 2021 546 3 View