In the EU member states, is there a regulation that does not allow the addition of kanamycin sulfate during the fermentation of E. coli?

More Liyuan Liu's questions See All

Why is electronic energy 0.000 for liquid crystal compounds and is invariable with temperature in Guassian 09 software?

Are there any suggestions or insights you can provide to help address this problem

06 August 2024 1,443 2 View

Project/Experimental assistance ？?

Do experiments on behalf of Our Business: Laboratory animal rearing Animal modeling Experimental animal behavior detection, image ultrasonic detection, electrophysiology platform Organoid...

05 August 2024 5,829 1 View

Do you know CUSABIO Biotechnology Scholarships for Students 2024?

I am pleased to announce the CUSABIO Biotechnology Scholarships for Students 2024! This scholarship aims to support outstanding students pursuing studies in the field of biotechnology. Here are...

22 July 2024 5,790 1 View

How to evaluate teachers' professional vision?

science teachers' professional vision:framewor,evaluation,review of related research,researchers related,research method,why professional vision

20 July 2024 6,577 1 View

Provide a questionnaire for positive role of politics in nursing ?

I want to write article in a topic of positive role of politics in nursing, and I'm confused how can we add add questionnaire and what will be the questionnaires.

18 July 2024 10,021 3 View

Issues in coating of cathode material on Al foil, why we are not getting proper coating and results when the cathode was coated on Al-foil..?

We are trying to coat some cathode materials on Al-foil ( ex - LiFePO4 , S@CNT, etc). When we coated the Al foil with the cathode (ex - S@CNT) material , the cycling result was annoying. But the...

09 July 2024 5,123 4 View

The role of binocular diplopia in the dental treatment of visual field defects?

In dentistry, we sometimes need ‘binocular diplopia’ when dealing with complex dental problems, which means using different angles and tools to ensure the treatment is effective. In your opinion,...

09 July 2024 3,898 0 View

How to disperse silverparticles in water?

I synthesize silver nanoparticles ，and reserve it in water. Then, when I sonicate it some minutes or longer ,it couldn't be dispersed, most of them aggregate .Otherwise ,when I sonicate several...

09 July 2024 7,335 0 View

Interactions between oral microbiota and oral sensory systems: impact on oral comfort and pain perception?

This research question explores the complex interactions between oral microbes and the oral sensory system. The diversity and function of oral microbial communities play an important role in oral...

09 July 2024 3,601 0 View

Zero pivot in Abaqus concrete 3D printing simulation using model change?

Recently I've been working on a simulation of concrete 3D printing, and has successfully simulated a layer-by-layer 3D printing process using model change. However, when I proceeded to try...

06 July 2024 2,130 0 View

Is there any way to quantify bacterial and fungal cells in their mixed culture?

I am working in fungal fermentation of soybean meal and there is bacterial growth in them at times. I am trying to quantify fungal cell counts and bacterial cells; but I haven't been able to do at...

07 August 2024 7,535 4 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

Do we save MSMEs of the Nation ?

SMEs are backbone of the country's white economy, most of them are II generation entrepreneurs and migrated from family owned business policies, and having sufficient higher educations for...

01 August 2024 5,562 2 View

In terms of chaos, what is the necessary and sufficient condition for authoritarianism, permanent or temporary, to come to exist and persist?

Since 2016 Brexit, the world needed to change the thinking behind traditional democracy as the democratic landscape changed, yet traditional democratic thinkers and actors have been acting as if...

28 July 2024 6,515 1 View

Does anyone know the scoring and interpretation for Psychological Birth Order Inventory (PBOI) of White Campbell?

Hi, I am currently a upcoming 4th year student who is need of your help as I couldn't find any accessible file for the manual scoring and interpretation for the PBOI - White Campbell. My group and...

23 July 2024 2,269 1 View

Why my gel electrophoresis have shadow bands? Please see the attached picture for the gel electrophoresis ?

Sometimes I see the shadow like bands and its not true band. I want to know that what's the reason for it. I am using 2% gel for running genotyping samples I have uploaded the gel picture in both...

19 July 2024 148 6 View

How effective has the United Nations been in addressing the conflict and its consequences?

After World War, we have seen the formation of the United Nations. The sovereign body for peacekeeping but with regards to the Russia-Ukraine war it is visible that the UN seems to be ineffective...

18 July 2024 4,674 4 View

How can the economic value of digestate management, utilization, and regulation, can spark interesting discussions and explorations?

How can the economic value of digestate management, utilization, and regulation, can spark interesting discussions and explorations? so one can list down the details and we can discuss in length...

17 July 2024 3,255 4 View

Can sulfuric acid be used to prepare anthrone reagent when it has oxidized and changed color in reaction to light?

Sulfuric acid has changed color to yellow.

16 July 2024 6,964 0 View

Why is effective targeted chaos more than emocracy?

Exism movements since BREXIT 2016 have been described as driven by emotions leading to the idea of Emocracy/Emocracies, but as the social discontent that is usually displayed after exism movements...

16 July 2024 3,701 1 View

Navnit Kumar Ramamoorthy

Dear Libyan,

Interesting !! Do they have such a rule pertaining to laboratory research usage or commercial production usage?

Karen A. Darbinyan

Hello, the problem becomes particularly acute at high cell densities. If this is the case, you may cause the resistance against kanamycin which is vice and the problem of the millennium not only EU regulation.