Is there recent literature on the local pollution impact of self driving cars?

I have a question about the local pollution impact of automated cars. The possible energy impacts are well understood, I think, even if the net effects are very uncertain: automated cars could...

02 September 2020 5,735 2 View

Where to find photo dataset of depressed people faces?

Hi, for a facial emotion recognition detection project, a friend asked me if I know where he could find a dataset with faces of depressed people. I found this deep learning facial emotion...

02 June 2020 1,623 1 View

Selective etchant of ZnS and Ge from graphite (C)?

Hello chemical friends, Does anybody knows a chemical etchant that could selectively etch away ZnS and Ge from graphite (C)? I couldn't find any simple answer to this question yet. Thanks for...

11 November 2019 1,516 2 View

Where can I find data on the use of fertilizers and pesticides in EU forestry ?

Hello, I'm looking for recent data on the use of fertilizers and pesticides in EU forestry. Would you know any EU website where I could find it ? Cheers, Laurent

31 October 2019 4,016 3 View

Is it necessary to add error bar on control condition on qPCR histogram that represent fold change ?

--Hi, a reviewer ask me to add error bar on my qPCR control condition. But this is what i think: Noteably, the error bar for the control group has a different statistical meaning as the error...

06 October 2019 7,289 3 View

Is that possible to write an article about one condition of a two conditions study?

To explain more in details. We undertook a cognitive experiment where participants performed a similar task (with different stimuli) in two conditions: one condition used as control condition and...

05 November 2018 7,732 2 View

What primers for barcoding on bacteria and protists ?

Hi, Do someone knows what primer(s) I could use for barcoding bacteria and protists ?

22 November 2017 3,555 2 View

Non-selective InGaAs/InP etch

Dear all, I am not chemist and I can't really find the answer to my question in the litterature. Could anybody suggest me a recipe for a non-selective wet etching of InGaAs and InP with similar...

18 May 2017 3,345 3 View

Steklov spectrum in an ellipse ?

Does anybody know whether the expression of Steklov spectrum (eigenvalues + eigenfunctions) for the 2d Laplace operator in an ellipse is available in the literature ? It seems to me that, as the...

22 October 2016 8,726 1 View

Could someone help me with my transformation issue?

I am writing to you regarding a problem I had with my sequencing results. Allow me to describe the situation for you.I cloned 79 pb of MPITS1 into plasmid TOPO10 and the colony-PCR results were...

01 June 2015 674 5 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

How to size battery banks?

I am designing a small grid connected solar PV power-plant. As the battery's capacity is specified in Ah and demand in kWh. What is the best way to size the battery bank? I have battery price in...

28 February 2021 1,638 3 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

Are there methods for automatically mapping floodplains, fans and terraces?

I want to map these river geoforms with as little subjectivity as possible. I have a high resolution DEM generated by drone data.

22 February 2021 7,800 3 View

Do I need to introduce HFD to ob/ob mice to obtain a T2DM model?

I am planning to work on T2 diabetic animals and check the efficacy of probiotics. My initial plan is to fed B6 animals with HFD for a while. But now, I have the chance to work on ob/ob mice. My...

18 February 2021 6,896 3 View

What are the options for global scale hydrology DEM?

Hello, I am working on a global scale hydrology GIS project delineating global watersheds and doing some data analysis. I have in the past used hydro1K from the USGS that cover the entire world....

18 February 2021 5,109 5 View

What test should I use?

15 February 2021 911 5 View

Can I use a categorical covariate in a Generalized Linear Model in SPSS v.26?

Hello everyone, hope you are well. I am planning to use a Generalized Linear Model in SPSS. I would like to add gender to the model as a covariate, however from what I have read, only continuous...

14 February 2021 8,937 4 View