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 and How to use teaching strategies and procedures to effectively integrate the four skills while teaching English Language Online?

As an inexperienced teacher in the field of online teaching, I have the fear of unconsciously ignoring one of the skills while focusing on not ignoring the other! Therefore, I wish to make use of...

09 February 2021 5,101 4 View

How did teaching writing gain its ground in the course of time ?

Since the decline of audiolingualism, there was bias towards speech in language teaching for communicative ends. Though, the stress on speaking rather than writing produces fluent but inaccurate...

12 January 2021 517 4 View

Explicit or implicit instruction: The trade-off between feasibility and productivity. Can a language be taught efficiently in an EFL setting?

Teaching realistically in an EFL setting would force us to rely on leaners' explicit knowledge and in turn explicit instruction. On the other hand, long hours of teaching explicitly may not lead...

17 December 2020 9,317 4 View

Confusion on selecting chinese option. Could you help me out?

For 1st question, I am pursuing a Ph.D. program and have completed a Master's degree as the highest degree. For 2nd question, I can listen, speak, and write the English language. Kindly help me...

14 December 2020 6,001 3 View

How can I run a repeated measures regression?

I'm doing a research in linguistics. the study is on synthetic speech rate, the participants (30) listened to the speech rate at 4 levels (sentences in normal rate, then accelerated at 10%, then...

02 December 2020 8,175 2 View

How to do a Repeated measures analysis with not normal distributed data?

I have results from a listening test in 12 sound environments which are build up out of 3 room properties and 4 occupancy rates. Since the sound samples were often intelligible, subject scores...

04 November 2020 5,423 11 View

How to assess the feasibility of introducing listening skill to the examinations at SSC level?

In many countries, English is taught as a compulsory subject in schools but the listening skill is not tested in the examinations. The authority sometimes says that it is not feasible to introduce...

25 October 2020 7,519 3 View

Can you please recommend secondary research topics for EFL teaching?

This it for a term project.

03 October 2020 7,046 4 View

What is the recommended maximum length of listening tasks for primary school children?

I would like to know if there are studies that investigated how long primary-school children are able to concentrate on a listening task. Are there official recommendations for a maximum task length?

20 September 2020 1,934 7 View

What is the appropriate tool to measure students' subjunctive needs of EFL?

04 September 2020 1,120 8 View