How to estimate nares to LES distance from demographic measures in adults?

There are some formula for estimating nares to lower esophageal sphincter distance in infants based on height. I'm looking for some data in adults to estimate such distance based on gender and...

31 December 2017 1,190 5 View

What band-pass filter is appropriate for continous blood pressure wave analysis?

We use the analogue output of the Portapres device for monitoring continuous blood pressure. Is band-pass filtering necessary for such blood pressure wave analysis? What should be the low/high...

10 November 2016 9,852 15 View

What does it mean when, in the repeated measure analysis, the time x group interaction is significant but between-subject contrast is not significant?

In the repeated measure analysis of the the effect of drug A compared with drug B on the variable C which was measured at times 0, week 2, and week 6, the results were as follows: Test of...

31 December 2014 7,441 13 View

What could be the mechanisms for vitamin D deficiency associated with radiation-induced intestinal injury ?

In a prospective study on patients with pelvic malignancies undergoing pelvic radiotherapy, we found an association between vitamin D deficiency and severity of radiation induced proctitis. This...

11 December 2014 1,496 8 View

What are the Pros and Cons of measuring 1,25(OH)2D in contrast to 25(OH)D to investigate the immunomodulatory effects of vitamin D?

10 November 2014 7,355 7 View

Can anyone recommend a good questionnaire for evaluating coping in cancer patients?

We are looking for a questionnaire to evaluate coping in cancer patients. We look for an instrument designed specifically for cancer patients.

02 March 2014 3,124 3 View

As independent factors, should anxiety and depression be included in a linear regression model separately or simultaneously?

In studying factors associated with sleep in patients with chronic medical conditions we found an association between different factors including anxiety and depression with sleep quality. To...

31 December 2013 7,349 33 View

What is the minimum acceptable item-total correlation in a multi-dimensional questionnaire?

In linguistic validation of some multi-dimensional questionnaires for our population (with 26 to 34 items and about 5 sub-scales), we encountered some questions: What are the minimum acceptable...

10 November 2013 5,304 28 View

Association of BMI and treatment response in rheumatoid arthritis - can anyone help?

Recently we have conducted a prospective study to evaluate if BMI is associated with treatment response to a combination DEMARDs therapy. We found an inverse association between BMI and disease...

09 October 2013 730 14 View

Is there any method for real-time in-situ measurement of the amount of released cytokines from immune cells?

-

07 August 2013 2,737 4 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

No title

01 March 2021 3,905 5 View

What test should I use to compare two or three means, if data is not normally distributed but sample size is > 30 in each group?

I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...

01 March 2021 1,587 6 View

Is it necessary to report effect size (ES) in statistics of biomedical research given that we already report p values routinely?

Pls share your thoughts

01 March 2021 7,330 4 View

How does an AC-DC power supply Flyback Converter Based USB Charger Model using Matlab/Simulink looks like?

I am required to learn about Flyback converters and I got stuck not knowing to full design of the power supply flyback converter Based USB Charger Model using Simulink, especially the design model...

25 February 2021 5,435 2 View

Why there are two peaks while using the mie plot of Silver nanoparticle?

Hi, I am trying to learn the theoretical modelling of silver nanoparticle using the Mie scattering theory. After that, I discovered a software named Mieplot developed by Philip Laven, where it...

25 February 2021 7,493 6 View

How to calculate Z (the number of molecules in a unit cell) for calculating theoretical density?

I am trying to calculate the theoretical density of my ceramics materials. I use the formula below to calculate the theoretical density: Theoretical density = (Molecular weight x No. of molecules...

24 February 2021 3,823 2 View