Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

Why is the efficiency of viral mRNA electroporation in PBMC low?

Hello, I have been struggling with the electroporation of PBMC with HIV-I mRNA. Although the quality of the RNA generated is good, and the handling of the cells in meticulous, the frequency of...

27 February 2021 9,233 3 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 View

The type of filter paper used to filter an epoxidized oil (the mixture is an epoxidized oil with magnesium sulfate) ?

I have a mixture of epoxidized oil and magnesium sulfate wich type of filtre paper should i use

21 February 2021 3,944 3 View

Any information about dinitrosalisylic acid reagent end point color stability ?

I work on estimation of alpha amylase activity using dinitrosalisylic acid reagent If i put the reagent to stope the enzymatic reaction and allow the reagent to react with the produced reducing...

17 February 2021 7,402 4 View

Is There are any idea to achieve H NMR signals for swollen compound ??

the samples are not completely soluble - just swelled the solvents that's mean the sample may be partially soluble any suggestion, please

16 February 2021 8,801 3 View

Is there association of SARS-CoV-2 infection rate with meteorological factors?

There are contradictory research papers about the correlation between meteorological parameters and incidence of COVID-19 in some countries worldwide. Is there correlation between the...

15 February 2021 5,806 2 View

Are there alternatives to the Devarda alloy when estimating nitrogen?

Are there alternatives to the Devarda alloy when estimating nitrogen? devarda alloy is reducing the nitrate to ammonium

15 February 2021 8,838 3 View

Can the viability assays (ex: MTT/CCK-8) measure cell proliferation? or are they solely viability assays?

I want to conduct a proliferation assay to test a chemotherapy combination on a cancer cell line. At first, I thought about the MTT assay. But now, all sources are saying that these do not measure...

14 February 2021 3,142 7 View

Using liquids as superstrate in Fabry-Perot Cavity Antenna?

Hi, A Fabry Perot Cavity allows to increase the directivity of a low gain antenna by putting in the top of cavity a superstrate with high permittivity such as a ceramic (er=10.2). However,...

09 February 2021 6,799 8 View

Which fluorescent dye to use for measuring total ROS production?

Is DCFDA appropriate for measuring total ROS production, or can it only detect certain types of ROS? If I want to measure total ROS production, which dye should I use?

01 March 2021 9,447 3 View

Can anyone help with Schistosoma identification?

Can anyone identify what kind of Schistosome species this might be? Morphological features of cercariae and adults resemble Trichobilharzia, though I am fairly new to the field of parasitology...

25 February 2021 7,760 6 View

Any references about insects or animals that can damage or weathering of rock or fossil material?

Are there any references to insects or animals that can cause damage or weathering to the rock or fossil material? books or paper that would be nice. Thank you very much!

24 February 2021 6,805 3 View

Are there SDMs that can take in percentage data?

Hi everyone, I am wondering if anyone knows of a species distribution model that can take in percentage data (i.e. presence data with prevalence values attached to them)? The dataset I have...

18 February 2021 7,312 3 View

During an anti-His capture ELISA has anyone had issues with histidine residues from secondary antibodies non-specifically binding?

Hi, Hope you can help. Currently been running some sandwich ELISA assays where I coat with anti-His, block and then capture His-tag protein and then sera and then anti-bovine monoclonal...

07 February 2021 7,101 1 View

Can anyone suggest me broad host range fluorescence expression vectors for Gram-positive bacteria ?

Hi everyone, I am looking for fluorescence expression vectors for expression in gram-positive bacteria present in the skin microbiome. I need to tag them with a fluorescence marker and observe...

06 February 2021 2,566 4 View

Is it possible estimating environmental conditions with a Bayesian approach?

In ecology specific species can be used to get an indication/estimation of the environmental conditions. A simplistic example, lets assume I find a pike (Esox lucius). We know this species does...

01 February 2021 10,034 4 View

Why are my Maxent SDM projections coming up almost entirely blue?

Hello Maxent Community, I have been generating SDM models and projections in Maxent. I have had some success with one set of variables (some Hydroshed variables mixed with World CLIM variables);...

19 January 2021 3,994 7 View

Modeling methods, large number of algorithms has been used in SDM ?

Hi everyone, I need some clarifications on these things: - What are the most important differences that can be taken into consideration between the various algorithms used in SDM ? - What is...

09 January 2021 4,544 3 View

Thresholds in MaxEnt ?

08 January 2021 4,769 3 View