Good day. I have difficulty applying my data set to a Machine Learning Clustering algorithm, can anyone assist me in this regard?

I have a data set for a railway wagon: It consists of 9 measurement parameters per wheel (hollow wear, flange thickness, etc) and there are 8 wheels on a wagon. I need to work out a health index...

23 June 2020 838 11 View

How do I change category from an article to a book?

Several books have been listed as articles.

16 April 2020 6,631 3 View

How to specify accurately the Parameters for the slope and intercept when using Latent Growth Modelling?

The usual procedure when using a Latent Growth Modeling with, for instance, 4 time points, is to code the intercept T1=1, T2=1, T3=1, T4=1 and the slope T1=0, T2=1, T3=2, T4=3. From my...

14 February 2020 7,172 6 View

The astigmatism of the eye ==> some quantic problems. Ideas and experiments ?

The astigmatism of the eye ==> some quantic problems. No one photon can be 5 m wide on the mirror of the Mount Palomar, simply because the geometrical defects of the mirrors limit the size of...

29 January 2018 1,475 4 View

Does soil fertilization impact differently on shoot growth in trees and on the number of leaves on these shoots?

Is it possible that fertilization of trees by spreading N-P-K on soil brings to a longer annual shoot growth but in an other hand they will have less leaves each?

25 November 2017 9,852 22 View

Do you know the locality of "Ain Mauddud" in Qatar?

The 1975 lexicon of Qatar states that the Cretaceous Mauddud Formation got its name from that locality near Dukhan.The name was assigned by Dr. F.R.S. Henson in an unpublished 1940 report. Does...

30 July 2016 6,048 6 View

What is the best marker of human kupffer cells in immunohistochemistry?

I'd like to make an immunohistochemistry on human samples and find the kupffer cells. How can I do that? Thank you!

17 January 2016 7,574 3 View

Anyone familiar with rearing locusts (Schistocerca gregaria) in great quantity?

06 February 2015 6,753 4 View

What are the assumption of equal spacing of the repeated factor in repeated-measure ANOVA?

In repeated measure-analysis of variance (univariate, multivariate or mixed models), when time is the repeated factor, do times have to be equally-spaced? Any citable reference would also be...

13 August 2013 9,051 1 View

Looking for validated qPCR primers for estrogen receptors (esr 1 and esr2) in rat

In order to determine the effects of endocrine perturbators in RAT cells from colon tumors, I want to determine their impact on mRNA expression of esr 1 and 2 . Due to the low level of esr 1...

30 October 2012 2,743 7 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 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

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 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

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 View

SEM or Multiple Regression for an analysis without Latent Variables?

Hello, I have three hypothesis to test, all with the same IV. I am testing if the effect of the IV on the first DV is mediated by awe. I am then measuring whether the effect of the IV on a...

26 February 2021 8,399 5 View

Can anyone help with Schistosoma identification?

Can anyone identify what kind of Schistosome species this might be? Morphological features of cercariae and adults resemble Trichobilharzia, though I am fairly new to the field of parasitology...

25 February 2021 7,760 6 View