Why industrial aqueous solution of perplasticizers (PCE), example: Sika® ViscoCrete®-3110 can precipitate during his storage in IBC?

08 March 2024 0 3K Report

I want to know why some products made of aqueous solution of modified polycarboxylates may precipitate during the storage on IBC.

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How can I publish my final master project as an article for a scientif journal?

I am interested in publishing an updated version of my final master´s project in Spain and i am not sure which steps to take. I am open to suggestions.

16 July 2024 7,431 1 View

THP-1 cells completely dying with PMA, help?

Have been trying to induce THP-1 using PMA at different concentrations (range from 5 to 50 ng/mL) but after 48h all the conditions except the control are mostly dead, checked by trypan blue and...

03 July 2024 3,884 5 View

Can anyone share the JCR impact factor for 2024?

Please can someone share the list of journals with impact factor published in 2024?

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

How to Compress Information Neurally?

Samuel Morse, the inventor of the Morse Code, understood that certain letters in the English language occurred more frequently than others (Gallistel and King 2010). To deal with this, Morse used...

01 August 2024 4,456 2 View

How can we improve storage conditions of museum objects?

90% of museum objects worldwide are in storage.

21 July 2024 8,038 6 View

65% saturation of ammonium sulfate in 100 ml? (for protein precipitation)?

Hi All: I need to precipitate extracellular protein from supernatant. A bit confused with ammonium sulfate calculation. Should I be adding: 1. 65g of ammonium sulfate in 100 ml of...

09 July 2024 5,508 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

How long can I store mouse tissues in neutral buffered formalin for, and how often should I add fresh formalin?

My study uses C57BL/6J mice and I am required to store portions of the important organs in neutral buffered formalin (NBF). Could I potentially keep those tissues in the formalin for a few weeks...

06 July 2024 8,360 2 View

What is meant by cross-contamination and what causes fruits and vegetables to become contaminated during preparation and storage?

02 July 2024 9,204 0 View

In a post-harvest handling chain (harvesting, transportation, storage), which among these do you think has the highest percentage loss why?

02 July 2024 7,649 0 View

Are there recent publications on the economic comparison of Solar PV Curtailment vs. BESS Installation?

I'm currently exploring the economic implications of solar PV curtailment versus the installation of battery energy storage systems (BESS). Specifically, I'm interested in recent publications or...

27 June 2024 6,423 2 View

Effectiveness and Implementation of CCUS in Oil Fields: Genuine Progress or Demonstrative Effort?

Many studies have been conducted on Carbon Capture, Utilization, and Storage (CCUS) in oil fields to increase the recovery factor. Do you believe these studies are genuinely useful, or are they...

24 June 2024 7,441 0 View

Challenges in Stabilizing and Concentrating a Highly Unstable Acetyltransferase for Crystallization?

I am working on an acetyltransferase that is highly unstable. Its pI is 6.65, and its molecular weight is around 18 kDa. The protein elutes at 1M imidazole and begins to precipitate immediately...

19 June 2024 2,590 0 View