How to compute the internal consistency of a scale with ordinal items?

Hi community, I am trying to determine what is the best way to calculate the internal consistency of a newly developed self-esteem scale. I am working together with two other researchers on the...

28 February 2021 1,369 5 View

Calculating volume of DNA required from DNA concentration?

Hi I am a bit confused. They are asking me to find out the volume of DNA required in ul (a total of 30-100 ng for genomic DNA) from the DNA concentration in the nanodrop reading which was 404.8...

26 February 2021 5,029 2 View

What is th needed sample size for a one-factor convergent validity check?

Hi all, I recently posted a question about how to conduct a convergent validity analysis for a self-developed self-esteem scale. I got some very useful responses! However, something I am stuck...

01 December 2020 4,370 6 View

Is there a method or developed technique for soil winnowing?

The light fraction (undecomposed organic matter) needs to be removed from prepared soils (

02 June 2020 921 5 View

Is there other related study about the impact on COVID-19 on Kindergarten Academic activities?

Kindergarten learners with internet connectivity at home are also encouraged to access enrichment activities. How mdifficult the new normal is, if connection is not possible, worst if there is no...

10 May 2020 10,019 3 View

How many mice are needed for long term potentiation?

As above, we are trying to do the Long-term potentiation test using mice hippocampal slices. How many mice are needed or how many slices are needed for LTP? Can anyone help me with that?

15 February 2020 7,073 3 View

My next study will be in a child autism class course what are some of the basic questions I will see on text and test papers?

Reason I ask is because I can find people that may be interested in the subject I have submitted my self to a fund raiser for autism on the Facebook network. any people interested in donating to...

27 December 2018 5,917 1 View

Gaussian optimization terminating without error message?

Hey, I have been trying to optimize the structure of what I guess I would call a lignin derivative. The system contains 63 atoms and has no charge. I have tried using DFT and HF using a 6-31g(d)...

06 November 2018 2,781 3 View

Model 8 Hayes' PROCESS Macro SPSS Output 2?

Hi, I would welcome some advise regarding the importance of the value of the coefficient in Hayes PROCESS Macro SPSS. In output 2, of the model, the mediator effect looks significant i.e.: (B =...

07 July 2018 8,116 2 View

Any suggestions on how I can inhibit secretion of cytokines by a cancer cell line without killing the cells?

These 'secretion-inhibited' cancer cells would then be co-cultured together with myeloid cells so I am hoping the environment would not be toxic to both cell types.

23 April 2018 7,624 8 View

Which is the best place in the world for the plant biotechnology research?

I am searching for a good place for the Post Doc,

02 March 2021 4,053 3 View

Which bacteria are suitable for quorum sensing screening?

I want to find a quorum sensing inhibitor from plant extracts. Klebsiella pneumoniae, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae. I looked for these strains...

01 March 2021 7,675 3 View

Isolates of Hymenoscyphus fraxineus?

Dear Dr. Cai, my name is Simone Prospero and I work in the team of Phytopathology at the Swiss Federal Institute for Forest Snow and Landscape Research (WSL;...

01 March 2021 1,133 1 View

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View

Good morning research fellows, Has anyone worked with senna alata plant extract on any kind of fish?

Literatures on the piscicidal effect of sennaa alata is scanty. if you have any related litrature either in the bark, leaves or roots used as treatment to any aquatic organism please kindly help...

28 February 2021 9,138 2 View

What HPLC Marker(s) should be used to detect anthocyanins in a sample?

What HPLC Marker(s) or standard is used to detect and quantify anthocyanins such as Delphinidin, Cyanidin in a given sample of plant extract?

23 February 2021 1,832 4 View

No title

22 February 2021 9,932 11 View

Can I get information about research laboratories that are currently having in culture, internationally/locally standardised microorganisms?

Microorganisms of interest include; E.coli; Salmonella typhimurium; Pseudomonas aeroginosa; Streptoccocus pneumoniae; Staphyloccocus aureus and Candida albicans. Locations closer to Port...

18 February 2021 6,500 3 View

In what ways do fellow reaerchers think that mRNA vaccination may be under CRISPR systems technology application ?

There are many ways for mRNA to intervene with genome expression. This question is raised for experts in CRISPR systems. Any RNA does not stand alone within acell. There are many ways to become...

18 February 2021 9,109 5 View