What is Nano technology with coronavirus helpe the human..and is it nano mterals removal of covid19?

I anwar by adsorption or reaction ..but it is either more method...

02 March 2021 4,811 2 View

What is the experience of clinically using Silver Diamine Fluoride (SDF) to stop caries progression in children's teeth?

Kids globally suffer from dental caries and pose problems for the dentist to treat it with conventional drilling. SDF is recommended to stop progression of carious lesion with out drilling. It...

04 December 2019 4,372 4 View

How can I measure the wavelength of Formaldehyde?

How can I measure the wavelength of formaldehyde in Aqueous solutions by UV- Vis spectrophotometer, and how much amount of distilled water and formaldehyde can use for this measuring

20 July 2019 983 3 View

Is Octa publishing company a reputable publishing company?

I have send them my manuscript for editing and publishing but now I have some doubts about there work

13 May 2019 8,873 4 View

What is the best data center to download regional groundwater level data in the Nile Basin area?

I search for a data center that provides regional groundwater level data for the Nile Basin area especially upper Blue Nile Basin area. I am a bit confused as many published papers do not provide...

26 March 2019 2,841 1 View

What is the best and efficient way to clean graphene surface after growing biofilms on it?

I am using graphene sensor to identify biofilm strains. Need to know what are best methods to cleanse the graphene surface to get device ready for next run.

26 May 2018 5,764 3 View

How can i preserve cell culture media for long time?

I have two bottles of cell culture media MEM Hanks and 199 Earls I dont need them now, but i will later. How can I preserve them for about 6 months , without loss in nutrients or contamination ?

24 May 2018 3,138 3 View

DFT computes, but B3LYP gives error

16 May 2017 6,767 4 View

No title

28 March 2017 7,717 3 View

What is the relation between pressure difference made by the fan and fan speed (or tip speed)?

Hello I'm trying to make a simulink model for Venturi tube, for the purpose of measuring volumetric airflow by making a pressure difference with a fan. The paper "Model-based analysis and...

13 December 2016 9,768 6 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

ZnS oxidizes to ZnO!!why??

when I put my ZnS solution in the chemical bath, the ZnS oxidizes so there are ZnO peaks appearing because of the reaction with the oxygen in the air, despite the fact that I close the beaker...

14 February 2021 5,778 9 View

Hi, can a variable in a questionnaire be measured with a series of questions or it has to one question for one variable?

I am doing research on the impact of competitive bidding on project success and would like to use SEM. Project success shall be: cost overage, completion time, quality of works and variation...

13 February 2021 4,413 6 View

Glucose 6 phosphate dehydrogenase deficiency & NSAIDs - is this combination harmless ?

G6PD deficiency is quite common in our anesthesia practice in the middle east. Intraop/postop analgesia in them is an issue here. Many websites/books give contrasting advise with former advocating...

10 February 2021 4,817 3 View

Why non-specific band appear on T-ARMS PCR?

Hi everyone. We want to know how can I remove the non-specific band amplification on this variant. Although the amplification of non-specific band is not as intense as the band that we want, but...

09 February 2021 588 2 View

What is your opinion regarding opening of school? Now students are supposed to join school. Do you think that decision is in the interest of society ?

From long Pendamic now government is opening school and colleges on for off line classes. What do you think that this decision is fruitful to the students and society too?

08 February 2021 3,068 6 View

Fractional derivative users, are you on the same page with me on the validity of the fractional order parameter, say alpha?

Taking a fractional ODE problem as an example. It has come to my attention that if the fractional order parameter is in the interval (0,1], many only presents results for alpha=0.9, 0.99. I saw...

08 February 2021 9,671 3 View

Looking for a scale to measure attitudes towards violence against women and the factors that impact attitudes in South Africa?

I am interested in doing research on attitudes towards violence against women and the factors that impact attitudes in South Africa? Does anyone know which attitude scale I can use to measure...

06 February 2021 3,076 1 View

To what extent do I need to justify my control variables?

Hi everyone, I am writing a research proposal for my masters applications and am in dire need of guidance. I suggest to quantitatively investigate the potential correlation between feminist...

05 February 2021 3,666 8 View

Is the use of "multivariate " or "multivariable" was correct in multiple responses study ?

In statistics most of the time, we use these two-term exchangeable, but in my opinion, there is a difference between them. Please suggest your opinion

04 February 2021 7,407 7 View