Physical-chemical formation of stalactites/stalagmites. what promotes the formation/growth of these structures?

I know, or think I do, the basic idea behind these natural structures, as from what I know they form due to water dripping from the top leaving a salt deposit behind. But started to wonder about...

22 February 2021 1,400 4 View

Can the intensity of this broad band in XRD mask other crystaline phases present?

I obtained a XRD diffractogram with significant broad band at low 2theta levels, also around 30 2theta another smaller broad band appears. It all points out to the existence of an amorphous phase....

19 February 2021 8,414 4 View

How to measure a Neural Network complexity?

Does anyone know how to measure the complexity of an artificial neural network? Could you provide me references? Thanks a lot!

25 January 2021 2,710 10 View

What is the best method for removing power-line interference (PLI)?

In the paper A wavelet-based method for power-line interference removal i... we propose a new method for removing PLI. This method consists in identifying the ECG and noise frequency range for...

29 December 2020 9,233 3 View

Tools for analysis of interaction between lncRNAs and proteins/miRNAs?

Hi! I would like to know what tools I could use to analyze interactions between a new lncRNA and possible protein/miRNA targets. The biggest problem I had to find such tools is that the RNA we...

20 November 2020 8,331 3 View

In which dry organic solvent/solvent mixture molten 1H-imidazole could be precipitated at 100%?

I am trying to isolate an allkylated imidazole from a mixture containing unreacted 1H-imidazole. The problem is that imidazole is slightly soluble in my targed molecule. Furthermore, I need to...

04 November 2020 4,513 3 View

Should I exclude a paper classified as low quality by the Newcastle-Ottawa tool from a systematic review without meta-analysis?

Hello! I'm working on a systematic review (without meta-analysis) and when evaluating the quality of the papers only one presented low quality. I did not find guidelines in the instrument itself...

04 November 2020 6,564 7 View

When will we have access to Brazilian agricultural censuses microdata publically available? Can Google and Microsoft help it?

Microdata are a wonderful way of analyzing specific issues in an heterogeneous environment. Brazil is wonderfully diverse country, and its countryside is also extremely heterogeneous. We have...

25 October 2020 8,900 2 View

Is it possible to use a muffle furnace without N2 atmosphere to make Biochars?

Greetings Everyone. I am reading several articles about biochars and notice several use N2 atmosphere inside the muffle furnace. can you produce biochars without this N2 atmosphere or other inert...

17 August 2020 8,992 6 View

Why Al target are melting at DC Magnetron sputtering deposition?

Dear all, i am depositing pure Al on a DC Magnetron sputtering tool and I am getting melted targets all the time. The target dimensions are: diameter 50mm and thickness 4mm. A bit of historical...

22 June 2020 3,780 1 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Steps to calculate activation energy by coats & redfern method?

I'm a chemistry student and I'm researching the kinetic degradation of mixed plastic waste. I'm having trouble calculating the activation energy by the coats & Redfern method. The data that...

24 February 2021 974 1 View

RNA degraded after good nanodrop readings?

23 February 2021 8,850 2 View

Mixture neutralization after Boc deprotection ?

I am performing a Boc-deprotection with HCl in organic solvent (dioxane or Ethylacetate) but would like to isolate the free amine. Several problems: - Neutralizing with inorganic base as NEt3...

18 February 2021 3,366 3 View

Onset of Photo Oxidation in Polymers?

Hi! I am looking for some specific information in regards to the minimum amount of UV intensity required to begin the photo degradation process in polymers. I understand each polymer is...

15 February 2021 7,703 4 View

What could be the possible causes of DNA degradation after extraction from 4% gel?

Hi everyone, During small RNA library preparation, I run the samples in 4% agerose gel to select the band corresponding to my target. I established beforehand the protocol and it works fine....

02 February 2021 5,008 2 View

Why degradation of pesticides is maximum at specific pH by using nanoparticles and nanocomposite?

actually, I am degrading pesticides by using inorganic composites the pH of the pesticide in distilled water is neutral the pH of nanocomposite is also neutral then why maximum degradation takes...

23 January 2021 8,775 3 View

How to tackle "CONSTRAINT CONTROLS" error while using tie between CFRP and frame segment in abaqus?

Hello, I had been trying to model a portal frame wrapped with CFRP in ABAQUS. To tie the CFRP laminates with frame I need to use slave/master surface interaction. But whenever I try to model the...

19 January 2021 2,906 3 View