In meta-analysis of binary outcomes, what should we do when the occurrence of outcome is zero in both groups?

In conducting meta-analysis of binary outcomes (in RCTs), in case the risk ratio has not been reported, what should we do with the studies that the number of outcomes occurrence is zero in both...

09 January 2021 2,802 5 View

How to calculate ratio of means and ratio of geometric means?

In conducting a meta-analysis, sometimes, some studies have reported geometric mean, while others have reported arithmetic mean. One solution for pooling these studies is calculating the ratio of...

11 December 2020 4,663 3 View

Is (Are) there any valid corpus containing geographical events queries?

Hi all, I'm currently looking for a question corpus to have a plausible number of spatial events queries. I found MS MARCO dataset in which I could extract a reasonable number of geographical...

08 December 2020 7,844 2 View

Do I have to assume sphericity or not when conducting two way repeated measures ANOVA in graphpad prism 8?

I am analyzing data obtained from a crossover study conducted on same animals evaluating the effect of two different anesthetic drugs on heart rate, respiratory rate, pulse oximetry, rectal...

28 September 2020 6,408 4 View

How to interpret arima model with regressors in r?

Hi there; I need to produce such an equation for a time series using arima model: y(t) = y(t-1) + a*x(t) + b*x(t-1) I know if I use for example arima (1,0,0) with x as the exogenous...

07 August 2020 7,438 6 View

Why some use seasonal ARIMA(p,d,q) (P,D, Q) instead of SARIMA?

Hello everyone. I am trying to use ARIMA model for a time series with seasonality. As I am new to this topic, I use the internet as my guide. My question is why anyone should use Seasonal ARIMA...

05 August 2020 219 4 View

How can I add stations to HBV-Light model?

Hi everyone. I've been using the original HBV model, so far. I might need to change it to HBV-light. Does anybody know how to add stations to HBV-light software? I can see there is this...

01 April 2020 1,032 7 View

How to define the parameters of Spatio-Temporal variogram models?

Hi everyone; I have a question regarding the parameters of variogram modelling. Does anyone know how to choose parameters such as Sill, Range and ... for the time, space and joint components of a...

10 February 2020 2,381 6 View

How to change tunit in VariogramST (R)?

Hi there, I am trying to use VariogramST function in R, for spatial-temporal kriging. The values I am working on, are monthly based; while in the function VariogramST, the predefined "tunit" is...

27 January 2020 5,986 3 View

The effect of number of antennas in multistatic architecture for imaging and SNR?

I believe by using greater number of antennas in simulation, SNR would also be improved. However I have no proof for that. Are there any equations that support my idea?

25 September 2019 4,890 3 View

What is the procedure for production of absorbable PGA or PLA sutures?

I wanted to know the procedure of production of absorbable sutures (PGA or PLA) including their composition and concentration of the polymer. I also want to know the time it takes to decompose in...

31 December 2018 1,760 0 View

What's the best method for ligation of the common carotid artery in a neonatal rodent?

I know people use both sutures and electrocauterization for arterial ligation in the Vannucci HIE model. I'd like to know how these different methods work. Can you be sure that there is not any...

07 August 2018 256 1 View

Can I run GEE having two within factor variables?

I have one factor as time (3 time points) and the other as treatment( absorbable versus nonabsorbable Sutures that each of them were used on different sides of a scar) so two treatments had been...

08 June 2018 6,220 1 View

Can I run GEE having two within factor variables?

I have one factor as time (3 time points) and the other as treatment( absorbable versus nonabsorbable Sutures that each of them were used on different sides of a scar) so two treatments had been...

05 June 2018 5,957 1 View

Dissolve mRNA-PLGA-Coating and determine concentration by gel electrophoresis?

Hello at all, right now i'm working on an PLGA based mRNA Coating for sutures. Now my aim is to incubate the suture for a defined period of time with cells and then remove the coating and...

31 December 2017 4,653 0 View

Suture protocol or test as a way to attach scaffolds in patients?

Hello everyone ! I'm looking for some papers about Suture protocol or test as a way to attach scaffolds in patients. Does anyone can help me please? Thank you very much!

09 October 2016 7,299 2 View

What is the strength loss of a resorbable polymer fiber (or suture) after it loses 50% of its molecular weight in vivo or in vitro?

If a polymer suture loses 50% molecular weight due to in vivo degradation, what % strength loss does that correspond to? Is there any correlation across various molecular weights or polymer types,...

08 September 2015 1,401 6 View

From where can I get contact lens for rabbit?

I want to use a contact lens for rabbit for transplantation of stem cells to the corneal surface with substrate. i want to put a contact lens which can also able to diffuse gas (oxygen and CO2). I...

04 May 2015 1,299 3 View

Evaluation of extraction socket healing

How to evaluate extraction socket healing (when the wound is primarily sutured)? Most of the studies use Landry and Turnbull Healing Index. There is also the H2O2 bubbling test. Do you have any...

01 January 1970 2,794 2 View

No title

01 January 1970 4,538 1 View