Looking for high efficient light sources (Laser, HE LED) for Spectroscopic Ellipsometry?

Conventional light sources have a penetration depth of a few nanometers in metal layers and cannot be used for spectroscopic ellipsometry purpose to measure layer thicknesses of a few 100 nanometres.

27 October 2020 7,663 4 View

Why is fungal/bacterial DNA isolated with Qiagen Powerlyzer Powersoil Kit not stable?

We have isolated DNA with the Qiagen Powerlyzer Powersoil Kit (with addition of Proteinase K) for NGS downstream applications (16SrRNA/ITS2) and encountered the problem that the isolated DNA is...

26 October 2020 7,418 2 View

GHRH/GHRF antibody for rat brain immunohistochemistry?

I'm looking for an antibody (preferably validated) for growth hormone releasing hormone (GHRH/GHRF) for immunohistochemistry in rat brains. Do you have any leads? I would really appreciate your...

18 June 2018 5,384 1 View

No title

07 December 2016 3,507 3 View

How can I stain for dead neurons in the ischemic mouse brain?

I am looking for a staining method to label dead neurons in the ischemic mouse brain.I use coronar cryosection from mice which were subjected to transient MCAo and reperfusion. I tried NeuN+TUNEL...

09 June 2016 7,426 3 View

Is it possible to use desert sand as a building material?

Like mortar or concrete? I can not find case studies or articles about this topic?

15 May 2016 8,157 27 View

Is there recent knowledge about social structure within a litter of warthog piglets?

Young warthogs (Phacochoerus aethiopicus) display suspicious light colored bristels at their cheeks. In our view these seem to mimic the prominent tuskers of the adult...(?) I would greatly...

06 October 2015 1,983 4 View

Has anyone ever tried to detect Blue Jets, Elves and Sprites above Volcanic Eruption Clouds ?

Many years back, I attended a special session on Elves, Sprites and Blue Jets at AGU in San Francisco. These are typically observed above severe thunderstorm clouds and are observed at something...

27 August 2015 4,229 2 View

Is Qiagen AllPrep DNA/RNA FFPE kit compatible with Laser Capture Micro-dissection using arcturus capsure HS LCM caps?

08 March 2015 1,823 2 View

No title

01 January 1970 4,611 15 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 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 kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 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

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 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