Does anybody has the biodot zx1010 manual?

25 January 2021 6,257 1 View

If the daily (hourly) concentration of PM2.5 is not Gaussian. Is correct apply an arithmetic mean in epidemiological studies for risk assessment?

The distribution of daily PM2.5 concentration (hourly) is bimodal in the city of Coyhaique (South of Chile). Coyhaique is the city more polluted by particulate matter accord the WHO. The major...

11 October 2020 2,006 3 View

Size-exclusion chromatography for the isolation of EVs?

Dear all, I am currently doing research on extracellular vesicles (EVs). I'd like to improve the isolation method by trying out size-exclusion chromatography (SEC) compared to serial...

07 September 2020 4,412 5 View

BSEM/SEM approach?

Hi all! I'm getting into BSEM approach and I am specially concerned about when it is recommended or not to use this model. I have tested a BSEM with a small sample obtaining excellent results,...

07 September 2020 3,919 3 View

You can support me in a study on COVID-19?

Hello, I am a psychological researcher. We are conducting an investigation on COVID-19 and I hope to have your support....

17 July 2020 8,402 13 View

Can you help me to find and share material by Ernesto Spinelli?

I am an Italian psychologist, currently I am a professor at the University of Sherbrooke, I work in the field of the existential humanist approach, especially the role of the art in palliative...

23 May 2020 6,863 3 View

Is there an easy way to derivatize silsesquioxanes?

I have a polymer end-capped with a Polysilsesquioxane (POSS) like the one here: https://en.wikipedia.org/wiki/Silsesquioxane#/media/File:Silsesquioxane_T8_Cube.png where *R=i-butyl*. I haven't...

12 March 2020 2,590 3 View

What solvent mixture/ratio should I use for preparing liposomes by REV method?

I have tried with chloroform-methanol (2:1 v/v) but the emulsion produced after sonication is not stable. Also, lipids don't dissolve well in pure ethyl ether.

24 February 2020 2,360 5 View

Which is the optimal optical density for toxical recombinant protein expression in E.coli BL21 (AI)?

Hi everyone. I am trying to express and purify a recombinant antimicrobial peptide using as a host cell E. coli BL21 (AI) (employing L-arabinose and IPTG). Because this peptide can be toxic to...

19 February 2020 4,888 4 View

How can i count the number of instagram posts or tweets associated to a specific location (i.e. a specific street or square)?

I need to find a reliable method for calculating the number of pictures posted on Instagram or of tweets, associated to a specific public open space. The objective is to create a social database,...

16 February 2020 6,175 6 View

Hello fellow researcher .. What is the meaning of your name?

I would like to create a small guide containing the meanings of the names .. Thanks to everyone who cooperates with me in achieving it.

03 March 2021 5,266 4 View

PACYC PCR not working after several attempts. Would anyone have any suggestions?

So, I have been trying to run a pACYC PCR which will be used later on for a Gibson Assembly. However the PCR is not working. I have already tried gradient PCR and changing extension time; however...

02 March 2021 1,146 2 View

Anyone that can help with details in phosphopeptides enrichment?

Anyone know the amount of protein before enzymatic digestion for phosphopeptides enrichment of serume sample in Ti-IMAC? Has anyone ever use Ti-IMAC(the material is from Chinese company named...

28 February 2021 7,310 3 View

How to get rid of somebody pretending to be the author of a publication?

One of the publication I co-authored has the author's name in abbreviation. Then, somebody whose nothing to do with that paper acquired it as her work. To whom in this RG shall I ask for a hand,...

27 February 2021 4,206 4 View

Is there a fast method matching citations to bibliography (manually typed references)?

I need to be able to match in-text citations to a reference list and back again in very large documents (100+ pages) WITHOUT the use of referencing software like Endnote. my method is to type the...

27 February 2021 9,848 1 View

How can I find a Raman spectrum wavenumber corresponding to what compound?

I have several Raman spectra with very distinct peaks at certain wavenumbers, such as 277, 359, 466, 583, 623, 686, and 795cm-1. How can I identify them to what compound(s)? The RRUFF and others...

24 February 2021 363 3 View

Why is My firend's profile not visible?

Hello, I created a profile for my friend on google scholar. I have added a verified email address. I marked the profile as public. Formerly his profile was visible. However, now, When I type his...

24 February 2021 8,680 3 View

How Can I clain a removal of a co-author?

I would like to make a correction in a co-author in your paper which is wrong. This name is also in other papers of Kenton Ko. Zey Ko is not a Co-author . The correct name is Zdenka...

24 February 2021 3,476 4 View

Anybody write me the name of scopus journals in commerce, management, economics areas. Which publish without any charge?

Please write those scopus journal names for which you have good experience with them.

24 February 2021 6,210 1 View

Online surveys for social sciences researchs: what are your opinions about this tool and how can we improve the research design to incorporate online?

Good morning everyone, Due to the pandemic, I conducted several online surveys. It is quite agile, not at all expensive, but there are several problems: the sample's representativeness and its...

21 February 2021 7,457 3 View