Does Arsenophonus replace the other gut bacteria in insects?

02 November 2020 4,628 4 View

In terms of camera based fluorescence microscopy, what does time interval mean?

I am getting slightly confused here... When the term 'time interval or delta t' is used, does it explicitly imply time between successive frames or can it also refer to the time taken to capture...

19 October 2020 3,105 5 View

Regarding Chemkin.. no reaction taking place after simulation. What to do?

I am simulating cyclohexanone oxidation from a paper. I got the input files from supplementary data. But when I am simulating, and generating Excel file at different temperatures the reactant...

02 October 2020 6,591 4 View

Does fluorescence based imaging improve spatial resolution?

I understand specific techniques based on fluorescence and other methods can enhance the spatial resolution beyond the diffraction limit of lambda/2NA (xy-plane) in what we call as the...

03 September 2020 8,786 3 View

Why does the transmission spectra shows an increase near the optical absorption edge?

Measuring a transmission spectrum of thin film (eg: single phase oxide) using UV-Vis spectroscopy, the transmission value gradually increases as we decrease the wavelength and reaches a peak until...

30 April 2020 700 1 View

Why my RAPD primer for fungal species is not working properly?

hello everyone, I m trying to perform RAPD-PCR for fungal species. till date total 40+ primer i have tested but no positive result i have got, only one primer showing reproducible band again and...

27 February 2020 8,785 3 View

Role of Ahmed body in a CFD Simulation?

While working on tools like STAR CCM+, why AHMED body is considered to be the basic of 3D CAD modelling & what are it's applications in the real life industry??

03 February 2020 3,521 3 View

Anyone knows about mann-Kendall test for long term rainfall and temperature data. How to run mann-kendall test using R-software?

please explain with example for understanding of new person.

19 September 2019 9,594 5 View

What are things to remember while designing primers to amplify cDNA corresponding to a specific transcript isoform?

I want to amplify cDNA for a specific RNA in plasmid, I will transfect it into mammalian cells, generating full length transcript(3kb) is necessary for my experiment.

05 May 2019 5,290 6 View

How to analysis a categorical data set, in which independent and dependent variables are categorical?

I have a dataset having 56 variables, in which 4 dependent and 52 independent variables. In those independent variables 45 variables are categorical and 3 dependent variables are categorical...

02 May 2019 2,253 12 View

How can I interpret time-dependent coefficients in Cox Model, given that theory doesn't indicate them?

I fitted a Cox PH Model and upon examination of the Schoenfeld residuals it became apparent that the proportionality assumption was violated by several variables. Following Box-Steffensmeier &...

12 September 2020 8,660 4 View

Best frailty assesment tool for busy surgical practice?

We currently are trying to implement edmonton scale. However, this does reuqire some time and designated resources. Any other suggestions for a good validated instrument with ease of use and not...

18 May 2020 6,359 1 View

SPSS logistic regression, looking at a single predictor adjusting for confounding?

I want to test whether a hypothesis of whether frailty leads to great outcomes of mortality, i used a chi squared to test the association and there is a significant association, now i am using a...

21 April 2019 2,451 2 View

SPSS logistic regression, looking at a single predictor adjusting for confounding?

I want to test whether a hypothesis of whether frailty leads to great outcomes of mortality, i used a chi squared to test the association and there is a significant association, now i am using a...

03 April 2019 8,161 3 View

Is it possible to include a frailty factor in a multi-state model?

Hi everyone, I constructed a multi-state model with 4 different stages based on the book by Melinda Mills and the mstate package manual (for R) by Putter et all. Somebody suggested adding a...

08 September 2018 378 1 View

Frailty or median values in my cox proportional hazards model?

Hi, I am analysing data of woodpecker-made holes and I am interested in seeing what covariates and to what degree affect the survival of these holes (otherwise known as cavities). However, I...

06 July 2018 4,350 0 View

Continuous predictor variable has very large OR and wide CI in binary logistic regression. What is the best method to transform this variable?

Predictor = frailty, outcome = cognitive impairment (Y or N) I am using a frailty index to quantify frailty. This ranges from 0 to a theoretical maximum of 1. However, in reality a score of 1 is...

05 June 2018 3,126 0 View

Is anyone aware of immunological changes in the last year of life?

Many studies have demonstrated that frailty, loss of independence and a large increase in hospital admissions are associated with the last year of life. I am looking for any evidence of immune...

01 February 2018 6,440 12 View

Should we use different frailty measurement tools in different settings? Or just one measurement tool for all settings?

There are many frailty measurement tools used in hospitals and in primary care services. Should we use different frailty measurement tools across the different settings, or should we just use one...

29 June 2017 2,688 2 View

Should we use different frailty measurement tools in different settings? Or just one measurement tool for all settings?

There are many frailty measurement tools used in hospitals and in primary care services. Should we use different frailty measurement tools across the different settings, or should we just use one...

05 June 2017 3,905 3 View