I would like to know if there are bibliographic references on this subject, or also to know what are the maximum values of Ge and In that can be in a sphalerite.
I would like to know how to register the journal Flora Montiberica (ISSN 1138-5952 - eISSN 1988-799X) in Research Gate.
02 March 2021 8,156 2 View
12 February 2020 8,781 1 View
Dear scientist: I want to measure the antioxidant capacity of cosmetic creams and lotions with the DPPH and ABTS methods, but I am not sure how to prepare the samples. Will dissolving them in a...
10 February 2020 3,597 4 View
Hi everyone, I have a question concerning random sampling from a dataset. I would like to extract random samples from a dataset. I thought the "sample" function in R could be a good and simple...
10 February 2020 8,061 2 View
We are interested in developing a electrospinning system and need: Flow rate: 1-5 mL/h
04 December 2019 239 1 View
I have more than 400 different events that occur during two years, some of them can occur 4000 times an others no more than 50 times. These events are not equally distributed, e.g., one at...
20 November 2019 5,083 3 View
Has anyone ever envoy pure RNA with RNA stabilizer? How to sent (2 days away) pure RNA to RNA seq without dry ice? It is a good idea to pellet RNA and then submerge in RNA stabilizer? I have sent...
10 November 2019 3,152 2 View
From a large sample (RCT) I got a binary response X (yes/no) and would like to see if there is a difference using NIH grants which is also a binary response (yes/no) Using R I made this code...
25 June 2019 2,707 7 View
I am studying how to concentrate an extract of algae obtained in an alkaline pre-treatment of red algae. The extract has a high conductivity (about 25 mS/cm) and we need to concentrate the organic...
14 May 2019 1,151 2 View
As I am starting my Bachelor's thesis, I first need to think about the research question. Even if I have some ideas, I do not have yet the question itself, however here you can see the areas I...
18 October 2018 4,725 9 View
What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help
08 May 2021 0 0 View
Anyone can recommend any books on such topics? Thanks in advance.
02 March 2021 8,457 2 View
(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...
02 March 2021 3,309 2 View
The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...
01 March 2021 2,272 4 View
Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...
01 March 2021 8,766 3 View
Dear colleagues, I have found that many authors have a concern regarding their missing citation in RG because often citation in RG is lower than google scholars. I also missed some citation...
26 February 2021 928 6 View
26 February 2021 7,279 2 View
Hi, I know the attached Txy diagram has an error but can't figure it out. Could you please look at the diagrams and explain it to me?
23 February 2021 4,239 1 View
Hello everyone: I am looking for a simple software program to model chemical bonds. The purpose is to generate a high-quality graphical abstract for a top leading journal in the field of...
23 February 2021 8,012 3 View