Why have peaks at 590 and 798 cm-1 appeared in the IR spectrum of biogenic carbonate deposits?

04 May 2015 1,027 9 View

Is there anyone with research experience and interest in investigation of biogenic calcium carbonate polymorphs?

02 March 2015 7,850 3 View

Comparing the XRD patterns of mixtures containing CaCO3, how can I just roughly prove that one sample contains more aragonite than another one?

I have the XRD patterns of two samples which mainly contains calcite and aragonite (S1 and S2, see the attachments). How can I just roughly say that S2 has more amount of aragonite than S1?

01 February 2015 1,393 12 View

How can I find the urea concentration within a urea hydrolysis process?

01 February 2015 2,751 3 View

What does it mean when a reaction has a rate constant greater than one (K>1)?

I recorded the concentrations of a product during a reaction. There was an enzyme producing bacteria as catalyzer. Then I plotted the concentration changes versus time and fitted a modified...

31 December 2014 9,073 9 View

Why is a sample contained Calcite identified as Nitratine by XRD analysis?

I analyzed a sample contained calcite using XRD. The pattern attached. It was identified as nitratine by the related software searching the database of XRD patterns. As nitratine is isostructural...

31 December 2014 5,513 10 View

How much a fit model with the following statistics is reliable?

How much a model with: - Model p-value < 0.05 - Lack of fit p-value > 0.1 - R2=0.99, Adj. R2= 0.99, Pred. R2=0.99 - normal probability plot attached (residuals do not follow a straight...

09 October 2014 5,187 2 View

Is anyone familiar with full factorial design?

I did a 2-level full factorial design with 3 factors in order to find the significance of each factor and their interactions on a response. After ANOVA on non-transformed response, I found no...

08 September 2014 331 11 View

Generalized linear model or Least squares model?

I did the following full factorial experiments to find the significance of variables and fit model. I analyzed the data using the standard least squares model and generalized linear model (normal...

08 September 2014 2,582 6 View

How can I analyze a full factorial design with some undetectable responses due to interaction between factors?

08 September 2014 7,333 5 View

No title

02 March 2021 3,060 3 View

What is Nano technology with coronavirus helpe the human..and is it nano mterals removal of covid19?

I anwar by adsorption or reaction ..but it is either more method...

02 March 2021 4,811 2 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 View

What do you know about biotechnology art?

What do you know about biotechnology art?

02 March 2021 1,653 3 View

Which is the best place in the world for the plant biotechnology research?

I am searching for a good place for the Post Doc,

02 March 2021 4,053 3 View

Could you please recommend some good journal that accept very long revie papers (approximately 6000+ words) in neurosurgery, cancer biology ?

Could you please recommend some good journal that accept very long revie papers (approximately 6000+ words) in neurosurgery, cancer biology ?

01 March 2021 8,087 3 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

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 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