What does it mean if in mediation analysis the indirect effect is significant but is a larger b value than that of the direct effect?

I understand that for partial mediation to have occured the CI for the indirect effect must not cross zero and the b value for the indirect effect should be smaller than the b value for the direct...

14 February 2021 3,273 7 View

Do you know of an informal caregiver of a person who has recently received a bone marrow transplant?

We are conducting a pilot study of an intervention for informal caregivers of persons who have recently received a bone marrow transplant in the US. If you know of anyone who might be interested,...

13 February 2021 9,174 1 View

Is there a solution to this conundrum on freefall into a black hole?

18 January 2021 1,582 3 View

Lipid Force Field with gromacs command pdb2gmx?

I have a pdb file that contains DPPC molecules and other molecules. I want to generate .gro and .top files from this pdb file using the Gromacs command pdb2gmx. I am trying to use the Charmm36...

08 January 2021 3,751 6 View

How to prepare flood inundation extent in GIS from water levels available at the centerline of the river?

I have water levels during flood at the center line of the river (100 km long) at every 100 m. I also have the DEM of the area in which the river flows. How to generate the flood inundation extent...

16 October 2020 5,263 4 View

Is there any software tool for doing Extreme Value Analysis to find out flood levels for different return periods as well as plot high quality graphs?

I know there is one tool called as EVA tool in MIKE Zero but it is the paid tool. However, I am looking for a free tool and not the paid tool but the one which can do the analysis of extreme...

03 October 2020 232 2 View

How do we treat flow around islands in high width rivers if we want to use 1D hydrodynamic models?

I just wish to know if there is any reference for treatment of islands/large sand patches/sand bars in rivers of width greater than 1 KM in 1D hydrodynamic models. Such kind of studies can be...

29 September 2020 7,090 3 View

Which satellite data product is most suitable for flood inundation mapping?

In literature there are so many satellite data products given such as MODIS, Sentinel 1 and 2, Radarsat, Landsat-TM used. However, I am unable to understand which satellite product should I use...

24 September 2020 867 9 View

Where to get population density maps shapefiles for India?

I need population density maps of India to be used for a research study. However, I am unable to find its shapefiles. Kindly help.

23 August 2020 4,291 4 View

How do I compare 10 groups of people in age brackets?

I am looking at age of people in 10 distinct groups. The number of persons in each age bracket is noted and there are 10 age brackets. The total number in each group is quite varied but data is...

12 June 2020 5,056 3 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View

How to run raise regression in R?

if anybody know how to run raise regression in r, and raise parameter selection, please help me

24 February 2021 8,199 1 View

Can anyone suggest me the best way for Regression analysis of Accidents?

Dear Altruist, I want to make a regression analysis based on accident data. But I am not finding the necessary information about what type of regression is more applicable for analysis accident...

23 February 2021 9,956 3 View