Which is the appropriate statistic test to examine the relation between students' affective state and academic performance?

Which test should I use to compare students' mood effects on academic performance? I want to compare mood measured on a likert scale (from point 1= very sad to point= 5 very happy) to three...

04 February 2021 1,907 5 View

How can you derive a and n parameters of the Van Genuchten equation for horticultural mediums?

Dear all, I am trying to figure out how to derive and n parameters of the Van Genuchten equation for compost samples taken from an urban farm. RETC has predefined values for these parameters for...

26 January 2020 7,843 3 View

I am trying to form microspheres with PCL and PVA using a mechanical stirrer but the polymers keeps forming clumps. What do i do to disperse them?

I prepared a 1% PVA, and dissolved 500 mg of PCL in 5 ml of DCM. Then I introduced the PCL solution into PVA while stirring at 2000 rpm for 2 hours, after which i place it on magnetic stirrer to...

15 April 2019 7,177 4 View

Can normal colon cell lines form spheroids?

I am growing spheroids from HT29 colon cancer cells, and I need some sort of control cells to be compared with the HT29. Now, I should grow the control cell into spheroids and then use these new...

30 October 2018 3,719 12 View

Please, can I get a research paper or an article on lipid extraction from ogbono and egusi using chloroform-methanol method ?

I am working on a project that involves lipid extraction using chloroform-methanol as solvents. I washed the product with water-methanol and about to use a rotary evaporator for evaporation. But...

10 May 2018 4,089 3 View

What is the effect of differentating 3T3-L1 preadipocytes in differentiation cocktail for 3 versus 7 days?

I noticed that some protocols use differentiation media for 2-3 days while others go for 5-7 days before changing to maintenance media. Why is that? Is an adipocyte grown in DM 3 days + MM 4 days...

08 December 2017 1,792 1 View

How to calculate sample size for a moderation study?

Hi, I am doing a study design and planning to do a moderation study. This is the simplest model. However, I am struggling with the calculation of sample size. How do I calculate the sample size...

23 April 2017 5,449 8 View

I want to take for the first time CHO cells in culture. How can I get 100% sterile glass Erlenmeyer flasks to use them again in the cell culture?

29 November 2015 9,661 3 View

How do I design primers that will distinguish between highly homologous transcripts?

10 August 2014 4,948 4 View

How can I get my ligation to work?

I've been attempting to subclone an insert from one vector to another by PCR amplification with primers that incorporate XhoI/EcoRI sites at the ends of the insert and then digesting the insert...

30 July 2014 4,230 6 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View