Should the working memory capacity of EFL learners be measured by L1 or L2 memory span test?

The capacity of the working memory is commonly measured by asking participants to remember a list of items and then counting how many letters they can repeat. I have noticed that for some L2...

26 August 2019 2,497 2 View

What is curtain gas in LC-MS technique?

is collision gas is the same with curtain gas in LC-MS technique? and as a whole what is curtain gas in LC-MS?

22 January 2019 2,823 5 View

How to do a repeated measure anova in spss with two unmatched groups?

We conducted an intervention study with three measurements of fear in three time points. Results showed that two groups were not matched for two demographic variables (education level &...

13 January 2019 8,071 3 View

Can we use insulin instead of injection as an eye droplet?

Many people around the world need to use insulin and they are not interested in taking medication in the form of injections. Injections also decrease the patient's quality of life. So is there...

12 October 2018 9,604 4 View

How do I invitro transcription?

Hi I am trying to do a pull down test so, in the first phase I should do invitro transcription for that I am using of T7 RNA polymerase from promega company. I designed a forward primer with T7...

12 October 2018 3,890 3 View

Could anyone recommend me implicit prejudice scale except IAT?

I am currently working on a research on gender-based prejudice against Muslims and looking for a scale to measure implicit attitude and I would like to know what options we have apart from IAT scale.

11 June 2017 146 3 View

Does anyone guide me for interpretation of peaks in two dimensional gas chromatography?

How can I interpret chromatograms in two dimensional gas chromatography?

30 May 2017 3,305 3 View

Do you know any questionnaire and article about leisure and positive emotion?

I am going to do a research about the importance of leisure in life. I would be so helpful if any one suggest me the comprehensive questionnaire.

17 December 2015 5,515 3 View

Is there any cut off value for Childbirth Attitudes Questionnaire which measure fear of childbirth??

The Childbirth Attitudes Questionnaire was validated in Farsi. it is recommended to use cut off value=28 for identifying fear of childbirth. I could not find any references indicating so. It is...

15 July 2015 7,382 7 View

Is it possible to analyze an aqua sample with GC/MS?

I want to know is it possible to inject a sample, that have water to GC/MS?

21 February 2015 9,282 12 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

How do I increase the yield of my PCR product?

Hello, We would like to increase the yield of our PCR product. We are running a series of PCR reactions that is targeting ~1.1kb sequence. We begin each reaction with ~400pg of template DNA...

02 March 2021 4,029 3 View

Ester cleavage conditions?

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

can I treat waste water containing solvents and alcohol with electrocoagulation?

there are solvents and alcohol in the waste water of a factory that produces disinfectants. Increasing this waste water requires very serious operations. Can I treat this waste water with...

27 February 2021 2,609 3 View

How can we theoretically calculate Elemental analysis(percentage) of atoms in covalent organic framework?

For example in one research article the Elemental analysis values of COF-TpPa-1 ( Triformylphloroglucinol (Tp) (63 mg, 0.3 mmol), Paraphenylenediamine (Pa-1) (48 mg, 0.45 mmol) are as follows...

24 February 2021 1,265 6 View

How to Control Whiteflies in coconut leaves?

24 February 2021 1,005 1 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View

What reaction will occur when adding hexamine into ammonium nitrate in an acidic medium?

Hello, I am investigating properties of water in oil emulsion explosives. And adding hexamine (hexamethylenetetramine) into one of the phases that are used to make the emulsion should increase the...

21 February 2021 8,680 1 View

How to get/count refractive index in gasses?

20 February 2021 8,202 6 View

Any Homemade Organic Synthesis Practices?

Hi everyone, I am a teacher of Heterocycles Synthesis, Is there a home practice that you recommend for undergraduate students? A simulator would also be useful Due to the pandemic, students...

18 February 2021 2,769 4 View