GINI coefficient EXCEL/R/SPSS?

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Compare to prevalence before and after covid in population studies?

Dear researchers, I have a prevalence of some diet habit in relatively large narrow population of children 13 years old in 2019 and 2020. Logically they are different population. However, since...

10 January 2021 3,170 9 View

Online self reported survey on nutrition and physical activities of children aged 11-12 years old?

Do you have some recommendation for this this type of survey? Some standard form of survey? I am looking for some short form, that can be easily done by children.

25 July 2020 2,641 3 View

GINI fractional regression and log transformation?

I would like to estimate changes in GINI during 15 years. Should I make log transformation of independet varible? Raw data for some independent varibles are not normaly distributed. Sincerely, A.

23 March 2020 1,601 3 View

Relativity of simultaneity and free fall: Do all observers see that two objects reach the surface at the same time when they are dropped?

Hi there, my question concerns a situation in which the law of free fall and the relativity of simultaneity come into play simultaneously. The general assumptions are as follows: 1. if we let...

03 February 2020 7,392 29 View

Bootstraping DEA scores and SE?

Dear all, I try to do a research based of DEA using bootsraping techniques in R packages: Bootstraping and DEAr. Does someone know how to calculate SE with 95%CI and how to obraine summaried...

24 October 2019 6,353 3 View

What secretes/produces the cytokine IL4?

Hello, I'm little confused about the secretion of IL4. In some papers it is mentioned that B cells secrete IL4, on other that it is Th cells, or even basophils. Can you also provide me with...

13 August 2018 9,329 3 View

Plants as Methane Producers? What is the latest standard of knowledge?

Dear All, not only in all known to me textbooks, but also in my academic environment, plants are only discussed as carbon sinks and therefore planting forests is said to be one of the main...

08 November 2017 6,587 7 View

Does Occam's razor favor MACHOs as candidates for Dark Matter?

Dear All, not only in our university, but almost in all well known to me lectures about Dark Matter, MACHOs (Massive Astrophysical Compact Halo Objects) are rather incidentally discussed while...

25 October 2017 9,570 2 View

Radnom sample froms survey data?

Using survey data, I planed to make log regression. Original sample size is 2000 and there are obaut 10% cases with outcome and 90% withoit it. May I chose amongst thant 90% random sample matced...

19 September 2017 3,296 1 View

Can someone suggest me good antibodis for clock proteins: PER1, DEC1 and DEC2?

I am working Western Blot on rat cells. Thanks

13 March 2017 2,776 1 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

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 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

What test should i use in comparing the correlation between categorical and continuous variables?

Dear all, I have the variable (Surgery duration) represented by values in minutes and the variable (preoperative neuropraxia cases) represented as (Yes/No) values. I want to compare these two...

03 March 2021 5,427 5 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 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

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View