Any suggestion of free of charge questionnaires that measure mood states?

I need a free of charge and short questionnaire that measures mood states. The questionnaire will be used as in a neuropsychological evaluation study. It is well known that mood states can...

16 January 2021 8,284 4 View

How to use iZON qNano for zeta analyser?

I have some doubts about iZON qNano for the zeta analyzer? I need to measure the zeta potential of my nanoparticles, but the samples have positive zeta potential around +20mV. I need to know how...

06 October 2020 7,976 3 View

Can I ask for your suggestions in freeze-drying PCR/LAMP mixes?

We have a project on development of a dry loop mediated isothermal amplification (LAMP)-based kit for detection of plant viruses on field site. One of the challenges in this project is the...

06 September 2020 8,531 4 View

No title

They are software's that are used mainly in the discipline of psychology

05 August 2020 9,423 3 View

Which value of volume fraction I can to choose for to identify free surface in an air-water simulation of open channel?

In air-water multiphase flow CFD simulation's it is common to use a VOF = 0.5 to track or identify the position of interface or free surface. I would like to know why this criteria is used and if...

12 July 2020 7,793 9 View

How to decide if to get 1 or various P value? regarding an composting process through time and treatments?

I have a research investigation that I got the results, I applied 4 different composting processes to vegetable waste (manure, manure+Effective Microorganisms, Effective Microorganisms and a...

14 June 2020 2,373 2 View

What is a CFD and other question?

To me, a CFD is solve a fluid mechanics problem using mathematical approaches with the help of a computer. In other words, it is like a marriage between a mathematical model and numerical methods...

04 May 2020 2,811 25 View

Purification of histag protein using HISTRAP HP (GE). What is the best lysis buffer and which protocol may be most suitable?

Purification of histag protein using HISTRAP HP (GE). I am working with insect cells (Tn5B) and my antigens are expressed in the nucleus. I am having difficulty lysing the cells because we have no...

10 March 2020 8,609 2 View

Why we use HPLC-RP to determine the purity of new chemical entities?

I don't understand why we use HPLC as method to determine the purity of NCE/drugs in medicinal chemistry if the HPLC won't show everything that could be a impurity (only compounds with UV absortion).

02 February 2020 3,135 3 View

Recent meta-analysis on imaging treatment response predictors in depression?

Dear Experts, Would anyone know of any recent meta-analysis of neuroimaging predictors of treatment response in major depression? I have looked around and all I could find was a paper from 8...

27 January 2020 9,717 1 View

Why cannot world and community leaders be gentle? Where did ethics of care go?

The whole world is in a mess and paused. We all are tired of seeing hypermasculinized and destructive leaderships all around us. This world has seen enough of the aggressive patriarchal social...

23 February 2021 292 7 View

Why is ethics significant in business and how should one control unethical behavior ?

1. The significance of ethics to business and how to control bad behavior.

21 February 2021 882 14 View

Describe a serious ethical dilemma you have experienced. Use the 12 questions developed by Laura Nash to offer a solution to the problem?

Describe a serious ethical dilemma you have experienced. Use the 12 questions developed by Laura Nash to offer a solution to the problem.

21 February 2021 9,133 2 View

Discuss the extent to which morality in African traditional societies can be classified under the Natural Law theory of morality?

How can one classified African traditional societies under natural law

18 February 2021 7,334 8 View

What is the optimal method to prepare a controlled porosity osmotic pump (CPOP) tablet for scanning electron microscopy?

In order to assess the shape and size of pores formed by dissolving the pore former in the semipermeable membrane structure, SEM images are needed. Cellulose acetate was used in the coating...

15 February 2021 6,135 3 View

What are some alternatives to the Self-Directed Learning Readiness Scale (SDLRS) developed by Dr. Lucy L. Guglielmino?

The Self-Directed Learning Readiness Scale (SDLRS), also known as the Learning Preference Assessment (LPA), was developed by Dr. Lucy M. Guglielmino in 1977 to measure learners' attitudes of and...

15 February 2021 3,095 4 View

What are backpropagation formulas for residual neural networks?

14 February 2021 4,194 3 View

How to derive equations for a resonant buck converter with ZVS?

I am not understanding how each author is deriving the equations and the working principle. Individual authors are giving their own working principle explanation for different circuit topology....

12 February 2021 496 1 View

Which ethical metrics is expected from an academic who is the owner or the creator of the measuring instrument?

Which ethical metrics is expected from an academic who is the owner or the creator of the instrument? The measurement tool will be applied to adults as an online form and a snowball sample will...

01 February 2021 9,188 3 View

Genus name priority from the same publication (Zoology)?

I came across a recent taxonomic work, where two genera were synonymized. Both genera were published in a paper in 1922 by the original author who revised the family at that time. The original...

19 January 2021 1,920 4 View