How can I perform a worldwide meta-analysis?

27 November 2013 1 2K Report

I want to do a meta-analysis of the association of a certain gene with RA worldwide.

All you need to do is a comprehensive search that is not filtered based on publications of any certain countries (then you can name it global!). Make sure to search in related databases (such as PubMed, etc.) so that you find all works in your area of interest. There are many books on this matter which give you some ideas how to search and process your findings. For instance:

http://www.amazon.com/s/ref=sr_nr_n_0?rh=n%3A283155%2Ck%3Ameta-analysis&keywords=meta-analysis&ie=UTF8&qid=1385597854&rnid=2941120011

Badges
Science method

More Jamil Mourad's questions See All

Why the CHi^2 is close to zero with a bad fitting but the Rp and Rwp are still high?

I am refining my XRD data using in FullProf program. The intensity of the modulated X-ray peaks is almost flat. I tried to adjust the peak intensities but unsuccessful. What is the reason? I guess...

23 February 2021 2,304 4 View

How can I calculate teh crystallinity degree of graphene oxide?

I had treat my XRD diffraction pattern by Highscore to calculate the crystallinity degree Xc and I have the formula but I dont no the 2Theta of Ac and Aa to calculate Xc. Is it like polymers...

10 February 2021 6,305 5 View

Are there any remarkable processes in practice to valorise both solid and liquid contents of city waste to fine chemicals?

Could anyone please suggest me a good texts/methods about city waste management towards the fine chemical ends? I am interested to develop methods to process both solid and liquid parts to...

01 January 2021 6,201 5 View

Hello Researchers, can organizational socialization effects on organizational ambidexterity? what's your opinion?

organizational ambidexterity simply talks about explosive and explorative innovation and how can this variable used with different variables i.e. leadership, resources, organization antecedent....

28 December 2020 4,022 3 View

Why peaks are shifted in XRD anlysis ?

I have synthesized zinc oxide nanoparticles by physical method (sputtering) direct interaction of plasma with zinc target and it is done in atmosphere. The sample were prepared at different...

18 December 2020 10,010 6 View

Hello , is there anyone who can tell me the effect of extrinsic and intrinsic in meshing a structure with a hole on the stress intensity factore SIF?

does meshing the hole or not in the structure has an effect on the value of stress intensity factore KI and KII

17 November 2020 5,628 3 View

How to determine Friction coefficient in orthgonal milling?

I have used a Pin-on-disc tribometer to find the friction coefficient. However, now I am getting feedback from some seniors that I need to get a friction coefficient from orthogonal milling. There...

15 November 2020 8,151 9 View

What is your opinion about this UV-Visible spectra of Graphene oxide?

? As I have synthesized graphene oxide following the Modified Hummers method.One thing I understand that the absorption is too high but what is the reason behind this distortion and how I can fix...

05 November 2020 7,540 4 View

Insignificant main effects, but signiciant interaction in 4 X 2 X 5 three-way factorial ANOVA?

I ran a 4 X 2 X 5 three-way factorial ANOVA to explore any viable variance in EI (Emotional intelligence) across the participants' age, gender, and YTEx (years of teaching experience), and found...

21 July 2020 5,654 4 View

How to write result and discussion regarding 16S and ITS2 soil microbiome?

Hi everyone, I have a problem about how to write a result and discussion for my research project. It is about bioinformatics result from rhizosphere soil and bulk soil. I am lost and not sure...

07 July 2020 7,434 6 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

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

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View