I was wondering if anyone can help with the egger's and begg's test for subgroups in Stata?

I run a network meta-analysis. I try to run egger's and begg's test for different subgroups using these commands in stata: metabias logrr selogrr, egger by(treatment) metabias logrr selogrr, begg...

06 July 2019 3,689 6 View

How might I calculate hazard ratio and 95%CI from median survival rate?

I need to calculate HR and 95% CI for median survival rate in two different groups. i.e., Group 1: median survival=x and CI:(a-b) Group 1: median survival=y and CI:(c-d) I appreciate your help

05 June 2019 6,830 4 View

How to convert a hazard ratio for 3 different categories to a single hazard ratio for 2 different categories?

I am doing a meta-analysis of the validity of immunotherapy as a prognostic factor. Different studies report different categories for drug timing, making them difficult to combine. For example, if...

05 June 2019 4,453 1 View

How to calculate Standard Error provided Hazard Ratio?

Hi all, I'm comparing the effect of different therapeutic methods on the one year survival rate of different groups of patients. I calculated Hazard ratio (HR) using this formula: HR=...

03 April 2019 2,464 2 View

What is the difference between mechanism of immortality in normal stem cells vs cancer stem cells?

Many genetic changes can immortalized cancer cells including oncogene activation or tumor suppressor gene inactivation. For example telomerase activation is one way to immortalize cells. But what...

09 October 2018 7,762 6 View

Is Neuro-2a a cancerous cell line?

Hi All, According to ATCC, Neuro-2a is a Mus musculus brain neuroblastoma cell line. Further search totally confused me, because this cell line previously used to study neurite outgrowth,...

08 September 2018 7,941 4 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 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 is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 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