With or without a Control Group?

Hello, I will do a research with K-12 students (my own students), and it includes a treatment which will last around 3 months. We will see how and whether it will affect their motivation. That's...

08 February 2021 632 4 View

Can I add a neutral option in a 4-point Likert scale?

Hello, I want to use a motivation scale with my students (secondary school) for my research, but the scale is in a 4-point Likert style with no neutral option (Certainly true - True - Not True -...

04 February 2021 4,757 13 View

What if there is no population to pilot an adapted questionnaire? What about its reliability and validity?

Hello, I'm new to this platform, and this is my first ever post in here. So, please excuse me in advance if I happen to cause any inconvenience. Coming back the question; I have just adapted a...

26 January 2021 9,030 4 View

What is a variabel to analyze empirically or attest a theory of Malthus (Economic Major)?

I have a project to evidence Thomas Robert Malthus theory about a principal of population (Malthusian Spectre/Malthusian Trap). I want to attest, his theory about a relationship of population and...

02 January 2021 8,146 3 View

How can i conduct Multivariate Regression Analysis in Eviews?

I'm interested in estimating the impact of business risk on capital structure (CS) and dividend policy (DP). My study focused on three hypotheses. The first and second hypotheses focused on...

01 August 2020 3,253 3 View

What constitutes a good university degree?

Please do not just read, your reflective comment is highly needed There are thousands of universities mostly in developing countries that are considered to be of 'low standard'. However, if...

18 July 2020 1,206 39 View

Privacy data and Zoom meeting?

Hi everyone, Undoubtedly, there has been a surge in the number of users of "zoom" to organise meetings during the COVID-19 pandemic. As such, there have been some reservations among users and...

01 April 2020 1,441 1 View

How can I integrate Gal1 promoter in front of CDC48p?

I need to integrate Gal1 promoter in front of CDC48p. The problem is that i dont know the right carbon source to include on my G418 plate. I have tried varying concentration of Glucose and...

08 March 2020 7,989 2 View

How do i design concrete piles with a rough surface for my research?

My research topic is "The pullout capacity of batter piles in sand; effect of pile dimension, pile roughness"

06 February 2020 9,159 2 View

My Thermo. Scientific Trace 1300 Gas Chromatography-FID beeps and subsequently shuts the oven down, what could be the possible cause and solution?

Hello All, I am using a thermo scientific trace 1300, but each time the system is up and running, a beeping sound occurs and the oven automatically shutdown even before I make any injection. I...

07 January 2020 8,497 1 View

Why does blocking with my immunogenic peptide cause nuclear fluorescence in ICC?

Hi all, I am validating a polyclonal antibody raised against human ANT4, through WB and ICC. In most of my controls, the antibody shows very little off-target binding, but when I pre-incubate the...

03 March 2021 5,999 3 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

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 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

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

How to remove DCU and HOBT from my reaction?

I am doing a acid and a chiral amino alcohol reaction using DCC and HOBT in DCM or THF? Can anyone suggest me how to remove DCU and HOBT from a reaction mixture??

28 February 2021 2,153 1 View

Dapi fluorescence protocol for colon cell lines ?

28 February 2021 2,534 2 View