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

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

Can you please comment on the relationship between your present epistemological research and your involvment in biosemiotics?

I am interested in the compatibility and possible overlapping between evolutionary epistemology (see Gontier et al. eds. 2006, Evol. epistemology, language and culture), biosemiotics, especially...

01 January 1970 9,441 2 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

Can water be extracted from Olivine?

I have always been interested in geology and wondered about how unique structures of materials behave in different circumstances. I stumbled upon Olivine, the magnesium iron silicate, and heard...

28 February 2021 7,330 4 View

How much cell pressure and back pressure should I apply to start for triaxial test for different types of soil?

We have recently purchased a triaxial test instrument (MATEST) for testing different types of soil. After installing software, we are facing a issue of saturation where the samples does not...

23 February 2021 7,194 4 View

Is this the fragment of a sauropod tooth?

Dear colleagues. Fragments of this species are very rare from a terrestrial Lower Cretaceous locality from Germany. Up to now from this locality sauropods could not be proved with certainty. Other...

14 February 2021 2,310 1 View

Is it possible to prepare clay minerals by mixing pure oxides of required elements? What would be theoretical difficulties with it?

Practically this is not at all necessary. But theoretically, would hydrous/hydrothermal synthesis be enough (like mix 1 mole alumina gel and 4 mole silica gel and gently heat) or would it require...

26 January 2021 6,403 3 View

Do you have information about synthetic diamonds and their environmental impact?

I am doing a deep research on the comparison of the process of extraction of natural diamonds and synthetic diamonds, and their environmental impact I would appreciate you could share your...

19 January 2021 1,359 3 View

Johnson et al., 2006 Geology of South Africa?

I am wondering if there is a digital (PDF) version of this book available or if anyone is willing to share this work. It is no longer available from GSSA (Geo Soc. S. Afr) nor does my library hold...

13 January 2021 5,571 2 View

Hybodontiformes - last survivors?

Hello Everyone, I just ran into the work of Boisvert et al., 2019, in which I found fig. 4.2 a bit confusing. It shows, that Hybodontiformes (pale green) survived till the Miocene, however, as...

13 December 2020 5,180 3 View

Is there any chemical environment or parameters to define or explain the sediment and soil profiles, are they separated by chemical parameters?

Sediment is relatively younger than the soil in the depositional environment as the sediments are consequence of the accretion of particles transported either by waters or by winds, whereas, soil...

12 December 2020 4,822 18 View

Is there any paper related to solar radiation prediction or photovoltaic power generation from IEEE geoscience and remote sensing society?

I have been looking for some paper related to solar radiation prediction or photovoltaic power generation from IEEE Geoscience and Remote Sensing Journals ( IEEE Transactions on Geoscience and...

08 December 2020 1,117 3 View