Estimate Beta is .00, yet it's significant?

Hi everyone, I've run an analysis of a latent 3-way interaction in Mplus (Y on XWZ). The estimate for this path is 0.000. S.E. is 0.000. Est./S.E. is 2.034. Two tailed p-value is 0.042. So,...

08 December 2020 2,132 4 View

What is the double layer capacitance of a 1 sq-cm smooth gold electrode in 0.1N (0.05M) Sulfuric Acid?

Is there an empirical or theoretical standard value for this (at room temperature) and for different electrolyte concentrations? Is there a resource available that provides a chart of values for...

29 November 2020 6,937 2 View

How does the concentration of atmospheric oxygen near ground level vary with time?

Hello, I am interested in how the concentration of O2 varies over time close to ground level. I have been informed that the concentration can drop when an inversion layer is present in the local...

19 November 2020 2,328 3 View

How does one calculate the best volume of nickel gel to use in a protein purification?

We know the capacity of the gel and the total amount of protein in the bacterial lysate from a Bradford assay. What we do not know is what fraction of the total protein is the his-tagged protein...

15 November 2020 4,664 2 View

Final temperature of water leaving an ice bath through copper tubing?

I have water flowing at 4 GPM at 2.5 feet per second through 50ft of 0.375 in. outer diameter tubing with 0.014 in. wall thickness. The water flows through copper tubing into the 50ft coil...

01 November 2020 8,039 5 View

Is it acceptable to publish data that were digitized from a previously published plot/figure (referencing the original figure of course)?

There are many ways to extract original source data from figures and plots in publications. If one were to do that and reanalyze the data in the same or a different way, is that acceptable in a...

28 October 2020 3,822 2 View

Methods to attach glutathione agarose resin to glass slide?

Hello, I am looking to capture a GST tagged protein on a glass slide. I was wondering if anyone had any experiences with glutathoine agarose resin. I realize this is commonly used in affinity...

13 July 2020 1,773 3 View

Where to find predator:prey mass data (for terrestrial carnivores)?

I'm looking for datasets (or databases) in which the body mass of predator and prey are presented. I'm specifically interested in terrestrial predators (snakes, mammals, birds). An example of is...

16 June 2020 2,453 9 View

How to calculate the overlap between animal distributions (Shape or .shp file)?

I would like to calculate the overlap between the distributions of two sets of data (predator & prey). The prey set has got about 250 species, the predator set approximately 5000. For each...

21 May 2020 6,726 3 View

Who can assist with an ingredient design of a Covid 19 Sars-2 Cov protein subunit and adjuvant vaccine?

18 May 2020 1,675 13 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

Does anyone know how to plot my station to a section plot on Ocean Data View (ODV)?

I made a vertical section plot with WOA .nc file on ODV, and now I want to plot my stations (csv. file) in it. Does anyone know how to import my points to the section? They are two different...

01 March 2021 3,610 1 View