Can somebody help identifying this species?

More Lotfi Bensahla Talet's questions See All

Where can I find CEL1 endonuclease enzyme?

I need CEL1 enzyme to use it in my laboratory work to complete my PhD thesis. Unfortunately, I didn't find it anywhere. So I'm waiting for any request about companies name where is available or...

31 October 2023 289 3 View

Does the % peak area of a GC/MS chromatogram correspond to the mass percentage?

03 September 2023 6,924 5 View

Detection of methyl methacrylate (MMA) using Thermal Desorption GC/MS?

We are trying to sample PMMA's combustion products and are looking into the amount of MMA in the "smoke". We are looking into air sampling possibilities that don't involve the desorption of MMA in...

13 July 2023 9,675 0 View

How do we use chaos theory in supply chain network design?

How do we use chaos theory in supply chain network design? Please send your suggestion

08 July 2023 794 3 View

Why are my VOC concentrations changing over time in the vial?

Hello, we have standard solutions of VOCs (benzene, toluene, ethylbenzene, xylene, styrene) that come to us in ampules. The solvent is methanol. Once we open these ampules, we transfer them to...

25 June 2023 909 2 View

Why are my compounds evaporating before their boiling point? in thermal desorption tube?

Can someone explain the chemical phenomena behind this? I spike my sorbent bed (tenax ta) with benzene, toluene, ethylbenzene, xylene, styrene, naphthalene, pyrene, and benzo[a]pyrene. The boiling...

15 June 2023 9,075 1 View

Block Sequencing in open-pit mines using Genetic Algorithm?

Hi everyone, I am a Ph.D. student and I am working on the production scheduling of an open-pit mine by genetic algorithm, and I have a problem with converting infeasible sequencing to a feasible...

04 June 2023 9,925 4 View

Error H-bond via Gromacs, Anyone ever experience this error?

When i run the command to calculate the H-bonds ''gmx hbond -s md.tpr -f md_center.xtc -num hb.xvg'' I can't find anything ( the file hb.xvg does not contain the number of H-bonds). I also...

05 May 2023 3,464 8 View

Mass spec and FID?

I was told that it's best to develop my GC detection and quantification method with the single quad mass spec and then switch the method to FID to generate the calibration curves and do...

22 March 2023 9,650 4 View

CST meshing in frequency domain and I-solver?

what is the lowest number that we can consider for Cells per wavelength in cst meshing? Is there any complete tutorial for meshing?

03 January 2023 5,113 1 View

An animal in not a rock (e.g., Koch 2013), it has an internal constitution that can be modified?

Vertebrates and invertebrates (e.g., arthropods: insects, crustaceans, etc.) have two different neuro-muscular systems given their differential construction: the former have an endoskeleton and...

07 August 2024 648 0 View

What are the key methods and indicators used in assessing the biodiversity of river ecosystems, and how do these methods account for variations ?

Biodiversity assessment of river ecosystems is crucial for understanding the health and stability of these environments. This question aims to explore the various techniques employed to evaluate...

07 August 2024 4,290 3 View

How microorganisms are important for maintaining of healthy soil and biodiversity and microorganisms and plant roots contribute to soil formation?

31 July 2024 8,939 5 View

What sustainable management strategies can be used to prevent soil erosion and role of biodiversity in sustainable agriculture?

22 July 2024 5,672 4 View

Interpreting ATR-FTIR Spectra for Microplastics Research?

Hello everyone, I am currently pursuing a PhD in Environmental Engineering with a focus on microplastic studies. My background is in Civil Engineering, and I am relatively new to working with...

18 July 2024 7,258 3 View

What is this animal ?

In saw this creature during a cable laying operation at 20km off the coast of Timor Leste on the timor sea at a depth of 1200 m.

14 July 2024 4,715 1 View

What analyzes do you use to compare biodiversity in a square, at two different times?

e.g. moment one: square in its normal state moment two: square after cutting large trees and replacing them with dwarf trees.

12 July 2024 8,258 5 View

What are the relationship between insect biodiversity and durian tree? maybe from the nutrition contain or canopy tree, or other things?

I want to know what are the relationship that happen between insect biodiversity and durian tree

10 July 2024 8,230 1 View

How can we prevent unethical research practices and impact of science and technology on our society and biodiversity?

10 July 2024 2,477 3 View

How is the preparation to obtain secondary metabolic extracts?

Hi everyone! I am working with bacteria and fungal collected from marine sediments. I would to know the methodology since the preparation of biomass until the extraction and stored of secondary...

03 July 2024 6,177 3 View