T-test and Mann-Whitney U test on groups with different sample sizes and variances?

Hello I have 2 groups with different sample sizes of (experts: 5 to 8) and (Users: 28 to 35) answering 21 questions on a 7 points Likert scale about the importance of some dimensions for...

31 January 2021 3,885 7 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

How can I generate property of S2 and S6 in aspen plus V10?

30 December 2017 8,150 2 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 essential to assess normality of items before doing factor analysis?

My questionnaire composed of 49 items. none of them are normally distributed. Is it correct to do a CFA or EFA with non- normal data?

11 January 2015 9,178 14 View

Does ceiling effect of the items of a questionnaire influence the results of Factor analysis?

The questionnaire I worked on consists of 49 items rating on a 6 point likert scale. I found that most participants chose the highest point of many items. However, the results of CFA are good? Is...

11 January 2015 5,571 8 View

Does TGF-beta rise always mean immunosuppression?

15 October 2014 2,298 11 View

Is Mobile Phone RF Radiation All Bad? The Findings on Adaptation.

Over the past years, our laboratory has focused on studying the health effects of exposure of laboratory animals and human to some common sources of electromagnetic fields such as mobile phones...

31 July 2013 2,299 3 View

I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future ?

I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future without necessarily conducting the assay for an extended...

23 February 2021 7,842 1 View

Any reference paper with detailing on how to hybradize Q-Learning algorithm with Genetic Algorithm, especially for a variable optimization problem?

I am planning to hybradize Q-Learning algorthm with Genetic algorithm at the population initialization stage, crossover stage and mutation stage. The problem under consideration is a...

07 February 2021 3,123 8 View

Are there any fast-acting, long-term fixatives compatible with FISH?

I'm looking for a fixative that works quickly but you can safely store cells in for a longer period (i.e. a few hours). Most importantly it must be able to fix chromatin well and be compatible...

03 February 2021 7,659 7 View

How can I transform 50 kb plasmid into ecoli?

I must put 50 kb plasmid into ecoli strain. I think 50 kb is too big for heat shock with ecoli. Is that correct? Will electroporation work? Or do I need to use cos sites and lambda phage...

22 January 2021 8,612 3 View

How can I get the chromosomal location of a list of genes?

I'm looking for a bioinformatics website to get the chromosomal location of a radish gene id list, but in one shot instead of doing it gene by gene. Is there a way to do this? Thanks

17 January 2021 8,810 3 View

Are you equipped to count small plasmid chromosomes?

I wish to perform an experiment which will provide support for a novel DNA structure. Most of the experiment is conceptually simple, easy to perform, and inexpensive. But the key to doing it is...

29 November 2020 5,258 9 View

What is this citation style called?

Hello everyone, I am preparing a manuscript for a journal which indicates in the authors guidelines that the citation and referencing style should look like the following: Citation in the text...

22 September 2020 6,897 6 View

What can I do if I get unexpected plasmid after sequencing of bacterial DNA? how can I characterise the unknown plasmid?

After sequencing a bacteria Streptococcus iniae I have got a chromosomal DNA and a extra plasmid DNA. I have not found any evidence of Streptococcus iniae having plasmid!! is it possible to...

02 July 2020 6,319 8 View

How genetic algorithm can be used to find optimal weights and biases of neural network?

Assume a 3-2-1 (3 neurons in the input layer, 2 neurons in the hidden layer and 1 neuron in the output layer) neural network. How genetic algorithm can be used to find optimal weights and biases...

24 May 2020 1,778 2 View

How to extract info from a merged VCF file of annotated WGS analyses in galaxy?

I have a joint flagged tab VCF in which are reported the annotations and variants of 69 samples. How can i extract information for a single sample or chromosome in Galaxy?

21 April 2020 3,836 1 View