Is this a hornworm - and which one?

In east china in found this hornworm on a small way near maize fields? Can you identify it? May it be the armyworm, Spodoptera frugiperda ? More pics...

10 November 2017 7,577 2 View

Store in alpine regions - pastures or forests - more water?

Store in alpine regions - pastures or forests - more water? There is a new study that in the Alps of Austria/Italy pastures are better to prevent climate change by drought. The synopsis is: If...

10 November 2017 5,231 0 View

Are cathions or anions more resonsible for the biological toxicity of salts?

I think on glyphosate, which is used in different formulations of salts. There are mostly this glyphosate salts used: isopropylamine salt (IPA)diammonium saltdimethylammonium saltethanolamine...

06 July 2017 1,879 2 View

Is testing botanical plant seeds biodiversity of soils with genetic markers for plant identification a good idea?

For finding the potential alpha-biodiversity of botanical plant biodiversity of soils as well as agronomical weed infestination, would it be a good idea to count/test in the soil living seeds with...

06 July 2016 170 3 View

Are here also questions of policy and politics possible?

06 July 2016 7,114 0 View

CHIA (Salvia hispanica): How are the market chances for CHIA?

Chia is a novel food for breakfast, bread etc and rich in omaga 3 fat acids. Do you see the demand is given for new plantations and a chance for developing countries? Which are the best countries...

05 June 2016 7,044 3 View

Which skin color had the first human creatures?

Had they mainly a black skin or was it more white or even red or other?I just heard that a man of Ghana explaining that the frist people had a black color. I know the more ancient pygmy people...

31 December 2014 4,471 1 View

Do you think there is a turning or tipping point in human life that habits or rituals could become a psychosocial barrier or even a fetter?

Are not habits or rituals are often important helpers for a happy and stabile living especially for disabled persons? And yet in some ways human habits change to a fetter. When and where is the...

31 December 2014 2,230 2 View

How would you test the mechanical density of a grass sward?

10 November 2014 8,300 3 View

How many water contain stones like limestone and granite in vol% or weight%? Has anybody a good comparable table?

The question arose in a lecture of waterbilances for plant nutrition.

10 November 2014 2,836 1 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

How can the modification of garden soil cause global warming?

Hello, I am working on a soil project and I found a primary research article that tests how the modification of agricultural soil can cause global warming, using a thermal collector, however I...

02 March 2021 7,161 3 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 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

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

Are there lab markers/pens resistant to Roti-Histol?

Hi, I'm looking for a pen/marker to write on the smooth, transparent (non-frosted) part of microscopy slides which does not get washed away by alcohols and most importantly Roti-Histol. I want to...

24 February 2021 9,902 5 View

I have a problem with kanamycin - why the kanamycin doesn't affect?

Hi everyone, I need to expression of GFP with pET28 plasmid in E. coli BL21(DE3) plysE. Transformed cells have kanamycin and chloramphenicol resistance. Normally, only transformed cells should...

22 February 2021 4,032 4 View

How does elongation affect the resistance of an electrode?

What are the testing rate for electrodes recommended by ASTM for cochlear implants. I am currently doing the 15mm/min elongatio testing.

22 February 2021 1,515 1 View

Resistivity of PVD TiNx thin films vs. N2 flow?

In the PVD of TiN thin films (~100A), I've found the resistivity of the TiN films dropped from ~100 to 60um*cm with N2 flow increasing up to the metallic mode ending point; then the resistivity...

21 February 2021 1,864 2 View