23 May 2020 0 4K Report

Hi. If, pre and post intervention, the Cronbach alpha for a scale used in a Repeated T-test analysis moves from >.70 to

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What are sources of negative control/artificial urine that I could use use dilute standards down in an ELISA?

Hello! I'm hoping to run an ELISA on human urine samples to measure testosterone levels. We are hoping to use a kit from Neogen, which has been validated for serum/tissue/urine. The protocol...

28 May 2024 2,815 0 View

Has the formation of my silver nanoparticles been indicated by the provided UV-Vis spectrum?

I'm trying to produce silver nanoparticles using plant extract, but I didn't observe the expected peak in the UV-Vis spectrum between 380-420 nm, where silver nanoparticles typically appear. After...

04 May 2024 6,463 11 View

What are the best solvents and plant extraction methods in the green synthesis of silver nanoparticles ?

1. Which form of plant extracts shows the greatest potential for green synthesis of silver nanoparticle: - direct homogenization with deionized water followed by filtration or centrifugation,...

02 May 2024 7,789 2 View

When designing a pulse oximeter simulation, what is the sole purpose of including a timer in the simulation?

For example, if the simulation software used is wokwi.

13 April 2024 480 2 View

Do you have an evaluation tool or rubric that will evaluate a learning material if it applies the multimedia principles of Mayer?

I am developing a learning material that applies the Multimedia principles of Mayer. I need an existing tool or rubric to help assess my material

07 April 2024 1,283 0 View

How can I stabilize a thick ethanol extract dissolved in water for AgNP green synthesis?

Initially, I conducted maceration with a 70% ethanol solvent for 3x24 hours to obtain the thick extract. For the AgNP synthesis, the thick plant extract needs to be dissolved using deionized...

04 April 2024 6,946 4 View

How to publish a paper without academic background?

I just failed about my PhD application (Business field). I think one of the reasons is "No Publication". But I have limited access of academic journals (usually use Google Scholar) and no...

21 March 2024 8,988 4 View

How to have self-learning of psychology and statistics?

I would like to study in PhD in marketing field. However, the Business School prefers to the candidate whom has a strong background in social psychology, judgment decision making / behavioral...

21 March 2024 5,335 5 View

After purification by centrifugation and washing with deionized water, what are the subsequent steps to produce silver nanoparticle AgNP?

1. If I air dry the sample overnight, how should I prepare it for UV-Vis, FTIR, DLS, and SEM/TEM characterization? 2. Do I need to add a buffer to maintain sample solubility? Should the...

19 March 2024 4,898 5 View

What are the best approaches for designing the green synthesis production of silver nanoparticles?

Is it more effective to optimize the ratio of plant extract to AgNO3, or should I adjust the final concentration of AgNO3 in a fixed concentration of plant extract, considering the optimization of...

19 March 2024 1,183 4 View

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Should I remove an item from a scale to raise Cronbach's alpha and McDonald's omega or is it better to leave it if they are both over .7 already?

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What do you consider to be the most relevant elements of EEG for studying cognitive biases?

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How to do Mann-Whitney U test with Bonferroni corrected p-values?

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Dimensions of an MJ Research 96-well alpha module?

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Why only alpha wave of brain are found in some patients?

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