24 December 2020 4 7K Report

I have some dry samples of mangrove´s sediments stored in 15 ml centrifugal tubes and I have some reagents for the Hach DR900. I sended samples to specializated labs that report me :

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THP-1 cells completely dying with PMA, help?

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Can anyone share the JCR impact factor for 2024?

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27 June 2024 2,927 0 View

Is is posible a negative eelative predicted relevance q2 in PLS SEM?

I am working on a paper and need to calculate the q2 value in a model. However, I found that some of the values are negative. I am trying to interpret these negative values. Does anyone have any...

26 June 2024 1,176 0 View

Is there an HSQC sequnce suitable for 13C labelled small molecules?

I work in glycobiology and one of my duties is synthesize short oligosaccharide with, at least, one sugar universally 13C-labelled. Is there any sequence that can help me with characterization,...

28 May 2024 8,039 0 View

Can someone tell me what is this on my petri dish?

Hi! I left some petri dishes with Pseudomonas aeruginosa cultivated in MHI in the fridge (8°C) during some time off, and when I came back, it was like this. This is just one plate out of many, and...

24 May 2024 5,149 3 View

¿Necesito 10 articulos cientificos en el campo de las comunicaciones?

Estos articulos deben tener estas caracteristicas resumir los siguientes aspectos metodológicos: tipo de enfoque de investigación (cuantitativo, cualitativo o mixto), objetivo, hipótesis, muestra...

15 May 2024 820 0 View

National Bibliography used to be an important source for libraries acquisition. I wonder if in your country it remains important for, can you tell me?

Until the early 2000s, the National Bibliography used to be an important source for the development of library collections, mainly for the acquisition of new items. I would like to know if in your...

23 April 2024 5,037 7 View

Could you please advise on the following matter? I need to ask within a questionnaire, the number of days each episode of disease last??

For example: Episode 1 2 days duration Episode 2 4 days Ep 3 and son on Many thanks in advance

13 April 2024 4,735 0 View

Why Virtual or Augmented reality are yet see as risk by some teachers in STEM teaching in develop critical thinking?

VR or AR can be a useful tool to improve the learning experience of students, mainly in STEM topics or contents considering the complexity and abstraction need to think in analitycal mode, focused...

09 April 2024 739 2 View

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