What concentration of nitrates and phosphates counts as being eutrophied?

More Hanifa Madrahimova's questions See All

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

Why did my Colony do not grow while perform blue-white screening?

Currently, I'm working on cloning experiments using competent cells (E.coli--> DH5-alpha). I've performed ligation before and continued with transformation in competent cells. after incubation...

18 February 2024 1,517 3 View

What are the most important properties of pairwise comparison matrices (pc matrices)?

What are the most important properties of pairwise comparison matrices (pc matrices)? Also if you can provide related applications.

13 February 2023 6,535 4 View

Some literature review research on topic "detecting mobile hacking"?

It should be based on some of systems developed to detect mobile hacking.

10 February 2023 2,684 7 View

What are open problems on applications of fixed point theorem in polynomials?

I would be grateful if someone could offer me some open problems in application of the common fixed point theorem of four (or less) functions and their application to polynomial functions. Some...

22 January 2022 4,814 4 View

Is there any proof of rank equalities of a block matrix based on the ranges of its submatrices?

I wish if someone send me the proof of the famous theorem of rank equalities due to G. Marsaglia which cited in many publications on ranks for block matrices involving generalized inverses. For...

23 November 2020 306 3 View

Does anyone have a problem submitting an article in a journal while the article has been available at bioRxiv?

I didn't know that checking the box of preprinting an article would automatically upload our paper at the bioRxiv website. The item is still waiting for the process of a journal review. In case we...

10 September 2020 3,825 3 View

Why high polar molecules vibrates under microwave volumetric heating?

When I mixed polyaromatic amide with anyone secondary amine like morpholine under heating environment, what is the possible reaction?

04 August 2020 4,473 0 View

How to calculate the bond energy for polyester and Aromatic Amides?

Anyone, please let me know how to calculate the bond enthalpy of ester bond and amide bonds. And also explain which bond has the highest polarity and why?

04 August 2020 3,536 0 View

Is it possible to introduce carboxyl group on the aramid fiber surface for activation?

Aramid fiber surface has highly inert for bonding with other polymeric matrix. Is it possible to introduce carboxyl group on the surface for activation. Many Physical methods hve been done by...

17 June 2020 4,718 3 View

Whether i can preserve leaves samples in 2.5% glutaraldehyde in 0.05 M phosphate buffer, pH 7 for coming several weeks for further LM study ?

I want to preserve the sample leaves for the LM study of the stomata and conidia analysis. Whether 2.5% glutaraldehyde in 0.05 M phosphate buffer with pH 7 can be applied for preservation.

29 July 2024 8,560 0 View

What can be done when electronic minimization does not converge during geometry optimization in CASTEP?

Hello All, I've been facing difficulty in executing geometry optimization of a sodium polyanionic phosphate (Na4Fe3P4O15) crystal in CASTEP (please find the input and output files attached). When...

07 July 2024 8,626 2 View

Can I directly ligate Illumina adaptor to the end of ssDNA?

I have a sequence of ssDNA that I would like to directly ligate an Illumina sequencing adaptor to. As long as I have done the end repair (remove phosphates), can I directly ligate the adaptor to...

26 June 2024 4,522 0 View

Initial and final setting times of a calcium phosphate cement?

I'm measuring the setting time of a calcium phosphate cement using an apparatus that records how much resistance a needle (connected to a load cell) encounters over time. This process provides...

24 June 2024 7,534 5 View

Ni-NTA protein purification - how to obtain higher yield concentration?

Hello, I am trying to purify a 6X-His tagged protein using Ni-NTA chromatography. However, I obtain very less yield & concentration; and considerable protein in load flow through. Any...

16 June 2024 5,876 5 View

How to interpret this sentence making a HPLC mobile phase?

I'm following a paper for their HPLC methodology, but I'm having a hard time understanding how to make mobile phase A. To quote: "Mobile phase A is a mixture containing 0.2% potassium dihydrogen...

13 June 2024 8,321 1 View

I noticed some white growth in the phosphate buffer that was prepared just a week ago. What could be the cause of this, and how can it be resolved?

The buffer wasn't filtered.. Could this be the cause? Can we autoclave phosphate buffer to resolve this issue?

10 June 2024 3,970 2 View

Is a 5` phosphate needed for homologous recombination?

Is a 5` phosphate needed for homologous recombination? I am a bit confused whether phosphorylated DNA is needed to achieve efficient homologous recombination in e coli. I believe there are methods...

06 June 2024 7,065 1 View

How to prepare 100ml solution of 2.5% Glutraldehyde in 0.1M PBS(phosphate buffer) pH about 7, from 25% Glutradehyde and 1X PBS?

final solution volume is 100ml

03 June 2024 417 0 View

Can methyl cellulose be used as a binder in the preparation of zeolite pellets?

I am currently preparing zeolite pellets for adsorption applications, specifically for removing phosphate and ammonium from aqueous solutions. So, I need to know about the binder used during this.

27 May 2024 5,802 0 View

Paul Milham

I'm unsure how such a standard would be written.. My guess might be in terms of biotic productivity

Annangi Subba Rao

The following paper provides the concentrations of total N and P in different water bodies where their effects are manifested in terms of algal blooms etc.

Mechanisms and assessment of water eutrophication Journal of Zhejiang University Science B2008 Mar:9(3)197-209. doi;10.1631/jzus.B0710626;