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I cannot seem to find this information and I apologise if it is my mistake. Considering you have followed the methods of Morrow et al 2002 and your salivary cortisol is presented as ng/ml, I am...

02 March 2020 5,963 1 View

Free Cancellation Task?

Hello! I am working on a study where we are measuring executive functions in 6-7 yr old children. We would like a measure of selective attention, but I am having trouble finding a free...

18 October 2018 1,857 2 View

Sampling points required to confirm a species is absent?

I am looking for some advice (possible articles) on the number of sampling points one would need to establish a level of significance to confirm a species is absent?

16 October 2017 6,882 3 View

What is the best place to get a custom antibody made?

I need to produce a custom antibody and I need the company to also synthesize the peptide. Does anybody have experience with a company that they liked?

25 February 2016 3,241 1 View

Should there be any concerns regarding sample size and number of variables when running a multivariable regression, using backward elimination?

Original idea was to run a backward approach (regression) with 80 cases/26 variables (those significant in univariate analysis plus some theory driven variables). However due to the number of...

19 July 2014 9,311 9 View

What are the benefits and impacts of working with tablet devices (ie. iPads) for older adults with health, mobility and cognitive issues?

I am currently working with a residential aged care facility to investigate the use of tablet devices (ie. iPads) with older residents, with a range of health, frailty, mobility, mild cognitive...

25 April 2013 553 4 View

What datasets are publicly available that measure the incidence of corruption/bribery?

Transparency International's Global Corruption Barometer measures the percentage of users of a service who have bribed at least once in the past year to obtain that service in over 100 countries...

29 March 2013 3,207 2 View

How do I reconcile transparency in publication with a funding source that has a strong desire to remain anonymous in all contexts?

My organization received a large grant from a private foundation that has a strict policy of anonymity. This foundation does not regularly fund scientific research, but my work was part of the...

01 January 1970 9,773 3 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 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 Ethovision store the generated data and video recordings directly to NAS system?

The size of data generated by Ethovision is huge. Having NAS system for data storage seems to be a good option, I am wondering whether Ethovision can directly store the data to the NAS system...

27 February 2021 6,350 2 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