29 April 2024 1 9K Report

Effects of Aeromonas caviae and Aeromonas veronii on Freshwater Fish?

More Mahmoud Elzeiny's questions See All
Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

How much Yeast should we add to fermentation media?

I have prepared a liquid broth containing Yeast (S. Cerevisiae) that i need to add from it to fermentation media of lignocellulosic hydrolysate. I need to know based on what parameters do we add...

06 August 2024 662 1 View

Why did the authors extrapolate a phenotype that they experimentally proved in one bacterial strain across the whole genus of the organism?

I aim to be as skeptical as possible regarding whether a pair of orthologous genes results in the same phenotype in their different but related bacterial organisms under similar environmental...

05 August 2024 6,787 4 View

Trying to make optimization for Mixer on different pdk ?

i make a design topology of mixer For my graduation project working at 28 Ghz on cadence with UMC pdk and get this result S(2,1) 3.5db but when trying to make same topology with another pdk on...

09 June 2024 9,729 3 View

Is it good choice to use the SARC/J auxiliary basis set with def2-SVPD basis set without including any relativistic effects like ZORA or whatever?

I’m currently utilizing the ORCA software for my computations, applying the PBE0 functional combined with the def2-SVPD basis set and incorporating the RIJCOSX approximation. For the auxiliary...

07 June 2024 6,352 0 View

Do the methods of calculating the absorption coefficient (Alpha) from absorbance differ between powder samples and thin films?how is it calculated ?

When using the absorption spectrum to determine the absorption coefficient (Alpha), do the calculation methods differ between powder samples and thin films? If there are differences, what are the...

07 June 2024 8,797 2 View

How do quick initial-test to select antibiotic-producing fungal strains?

We have dozens of pure fungal strains recovered from the soil and need to know the extent of their ability to produce antibiotics. Still, the problem is the spread of fungal mycelia on the plate...

09 May 2024 9,467 2 View

Does anyone have detailed methods and instructions on how to count the numbers of intraepidermal nerve fibers (IENFs)/mm using Fiji - ImgaeJ?

Counting the numbers of intraepidermal nerve fibers

05 May 2024 3,296 1 View

Convert solid organic powder to nanoparticle?

i synthesized schiff base with bulk size., any suitable method to convert it in nanosize with full regards

22 April 2024 1,423 2 View

Give example to Master plan on maintenance project?

a master plan for glass factory

18 April 2024 2,111 0 View

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"I have treated adult zebrafish with 8-micron polystyrene microplastic and want to study the bioaccumulation in different organs. Can this be done using hydrogen peroxide digestion followed by...

05 August 2024 853 3 View

I need help with Identification (misidentification) of European Pisidiidae & Sphaeriidae?

Hi everyone! I published an article summarizing my first experience in determining cryptic species of small bivalves, of course with errors. I will be very grateful and will thank you in future...

02 August 2024 6,582 11 View

Which filtration method to go for run off water from dirty solar panels to be used again?

We are working on a robot that cleans solar panels using fresh water supply and a rotating brush. We are trying to conserve as much water at possible by recycling the dirty water that is collected...

28 July 2024 5,778 2 View

In passive sampling, can polymer-lipid partition coefficients be applied independent of environmental salinity?

For example, if low-density polyethylene (LDPE) is equilibrated with PCB contaminated marine and freshwater sediments, can LDPE-lipid partition coefficients be used to obtain equilibrium...

28 July 2024 263 1 View

Do anyone knows any book dealing with fish growth/zootechnical performances and somatic indexes in aquaculture?

In the aquaculture and fish nutrition research field, a number of growth and somatic indexes are often used, including specific growth rate (SGR), feed conversion rate (FCR), protein efficiency...

22 July 2024 2,480 4 View

Why do fish have fishy odors naturally ?

Chemical Engineering /Food Engineering

20 July 2024 4,152 4 View

Chromosomal spreads are shrunken after fluorescence in situ hybridization (FISH), why?

Dear colleagues, We are trying to do FISH on mice PDEC metaphase spreads. We use homemade biotin labelled probes, synthetized using a nick translation kit. For hybridization, initially we were...

08 July 2024 8,687 3 View

Determination of fatty acids in fish?

I measured the fatty acids in the fish, using the internal standard method in the national standard method, I first extracted the fish oil with cable extraction, please ask me how many grams of...

02 July 2024 900 1 View

How many fish otoliths and charophyte gyrogonites should you find in a sedimentary sample weighing 50g in order to be considered enviromental indices?

It's for my thesis on Quaternary costal sediments from Western Greece.

01 July 2024 4,854 0 View

Which statistical test would be the best?

For my practical project at Uni, I am researching blue-green algae in a freshwater lake. I have three locations around the lake and am testing the water for phosphates, pH, and temperature. I am...

30 June 2024 4,264 3 View

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