Level 1 pre-post multilevel regression: Panel data or ANOVA approach?

Dear colleagues, I am currently teaching myself in multilevel analysis using educational data. I found few to zero literature on basic analysis methods. In my context we frequently use level-1...

17 February 2021 9,378 5 View

Reliable and Valid Instrument for Causes of Medical Errors?

Is there any questionnaire/survey that measures the causes of medical errors? Example: physician negligence vs. systemic issues. Looking for a reliable and validated instrument. Thank you!

15 February 2021 2,874 4 View

Should the AUC in a concentration-time graph of a subcutaneous implant be roughly the same for poeple?

I have 2 concentration time curves of a subcut drug implant. the first group has a peak around the 50 day mark where as the second group does not. Both groups received the same implant by the same...

10 February 2021 2,305 3 View

Software for flow cytometry-like gating of data sets?

I am currently trying to do image based cytometry from fluorescence microscopy images. From the images I extract data such as cell size and a number of fluorescence intensities. Is there any...

09 February 2021 6,278 1 View

Can A. thaliana splice algae genes?

24 January 2021 329 2 View

Does long term preservation (10years) of Collembola in 99% Ethanol affect recovery rate of extraction by flotation?

Hello! I am currently developing an automated counting approach using Fiji to count Collembola from pitfall trapped samples that have been stored in Ethanol (99%) since 2010. I use flotation (tap...

13 January 2021 659 2 View

Co-stain Lectin PNA FITC conjugate with an uncojugated primary antibody?

Hello, I am planning to stain retinal tissue sections for IHC and want to co-stain cones and rods. For this we plan on using a Lectin PNA From Arachis hypogaea (peanut), FITC Conjugate for cones...

12 January 2021 583 1 View

How to use Abaqus USDFLD subroutine to vary stiffness?

Hi I have a problem where I am trying to vary the stiffness spatially across a structured interface. The whole idea is to vary the stiffness vertically, with a bulk stiffness of 8GPa decreasing...

06 January 2021 262 3 View

I really need help with cov-2 pseudotyped lentivirus production. Support?

Hi, i'm desesperate. i'm trying to produce lentivirus usinf BEI resources kit NR-52948. 24 hours after transfection i detect a massive GFP expression in my 293T cells. After 72 hours i filtered...

30 December 2020 9,889 6 View

How can i estimate the total phenolic content from a plant extract?

Suggestions and recommendations are welcome. A protocol used and experience would also be helpful.

25 December 2020 9,807 4 View

Does Covid-19 vaccine give to pregnant and breast feeding women?

I need to know the safety of Covid-19 vaccine in pregnant and breast feeding women

17 February 2021 504 9 View

Waters Empower 3- Recover Deleted Sample Set?

Right before my lab shut down, I ran several samples using Empower 3 and started analyzing the data remotely from home afterwards. Without realizing what I was doing, I deleted the sample set of...

14 April 2020 4,111 3 View

Recommendation on research on Bangladesh/South Asian programs on breastfeeding/nutrition <1 year child?

Hi, I am looking for references on nutrition interventions in south asian nations like Bangladesh and Sri Lanka (mostly nutrition sensitive/preventive approach) to reduce growth...

05 January 2020 7,580 8 View

Looking for breastfeeding/infant policy statement or practice guidance from dietetic associations?

I have a policy statement from the British Dietetic Association, and both a policy statement and practice guidance from the Academy of Nutrition and Dietetics (USA). I can't find any other...

22 October 2019 892 10 View

Looking for breastfeeding/infant policy statement or practice guidance from dietetic associations?

I have a policy statement from the British Dietetic Association, and both a policy statement and practice guidance from the Academy of Nutrition and Dietetics (USA). I can't find any other...

09 October 2019 215 9 View

What is the pressure displayed on HPLC panel and empower - Pressure required to push the sample or Back Pressure?

What is the pressure displayed on HPLC panel and empower during sample flow - Pressure required to push the sample or Back Pressure generated inside the column?

06 July 2019 3,559 13 View

How might schools empower teachers to become teacher leaders?

How do we create the conditions necessary in schools for teacher leadership to flower? How do we support emerging teacher leaders in seeing themselves as leaders?

03 April 2019 5,509 6 View

What's the estimated incidence of lactose intolerance in the United States?

Dear fellow researchers, Does anyone hold any useful information (or possibly a reasonable estimate) on the incidence rates (by age groups, if possible) of lactose intolerance and/or lactase...

18 March 2019 403 3 View

What's the estimated incidence of lactose intolerance in the United States?

Dear fellow researchers, Does anyone hold any useful information (or possibly a reasonable estimate) on the incidence rates (by age groups, if possible) of lactose intolerance and/or lactase...

02 March 2019 3,472 4 View

How can non-native English teachers be empowered?

Non-native speaker (NNS) English teachers have been considered less competent than native speaker (NS) English teachers. For the past ten years, the nonnative speaker movement has fought this...

07 August 2018 295 18 View