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

How far results from cross-analysis of SR* of climate change among populations of a developed and developing country can be extrapolated?

A large literature shows that socio-political variables, notably values, worldviews and political orientation alongside demographic variables are keys factors affecting climate change perceptions...

21 April 2020 5,672 15 View

Which satellite image is better for buildings and roads extraction WorldView1, 2 or 3?

Which satellite image is better for buildings and roads extraction WorldView 1, 2 or 3? Is it possible to extract built up features without panchromatic band? Please provide references. Thank you.

08 September 2019 4,524 4 View

How can we build a 3d model from WorldView images (Not Stereo)?

How can we build a 3d model from WorldView images? one or more images . There is no panchromatic band. Please share references Thank you

08 September 2019 6,538 3 View

How can one define happiness in the context of the contemporary reality of human existence of a man living in an information society?

To define a concept like happiness is not easy. If the definitions include transcendental, parafilosophic, universal, timeless issues, etc., the definition may change even depending on a...

09 October 2018 1,512 3 View

Atmospheric correction for WorldView 3 image?

I have a worldview 3 image (Level 1B product with 17 bands, 1 Pan, 8 MS, and 8 SWIR). I need to apply an atmospheric correction to the image. After I apply radiometric calibration with ENVI 5.4,...

05 June 2018 1,757 4 View

1B level of satellite images?

I am working with a couple of satellite images that are in level 1B. Do I need to do any geometric correction for this image before radiometric and atmospheric corrections? If so, how should I do...

05 June 2018 1,141 5 View

Problem with projection of Worldview 3 image?

I have a WorldView 3 image with multispectral (only 8 bands, Coastal, Blue, Green, Yellow, Red, Rededge, NIR1, NIR2) and panchromatic band. I can open one of them (either multispectral or...

04 May 2018 2,961 8 View

What is NBR index for Worldview 2?

I'm studying about Detection of Burned Forest Areas with High Resolution Satellite Images. And I need to what Wordview 2's NBR index is. Thanks your help.

03 April 2018 7,292 0 View

Where do my worldview belong to?

Investigating the effect of using X teaching method in teaching some Maths topics. I am just a beginner to research in education. I drafted below my views and beliefs about researching the...

31 December 2017 4,378 0 View

Does anyone know where I can download VIIRS DNB products?

I am looking for contemporary remote sensed night lights images for my project. Currently, it seems there are no data available for download, neither at the NOAA's website nor at the NASA's...

11 December 2017 5,272 6 View