Why oxidation with peracetic acid engender staining of oxytalan fibers with clastic tissue stains?

Just a quick question above, this oxidation method is mentioned by literature, but no one talked about the principle. Can anyone figure out how the oxidation works on any specific group?

20 December 2020 5,878 1 View

Why does my HPLC filter always generate air bubbles?

I have an old HPLC machine. Every time when I put my filter into 50%:50% water and acetonitrile mixture, my filter always generate bubbles. However, once I change the solvent to 100% acetonitrile,...

08 March 2020 5,587 4 View

What are those clay/silt aggregates? Are those intraclastic clast or flocs?

These deposits were from mud caps of sediment gravity flow deposits. These mud caps are homogenous and no trace fossils can be identified. Can any one help me identify these aggregates? Thank you...

10 September 2018 3,627 3 View

How to measure cell density of bacteria entrapped in hydrogel?

How to determine the cell density or total suspended solids of the bacteria which are entrapped in hydrogel like PVA+Alginate?

26 March 2018 436 3 View

Do these two factors affect the efficacy of a pitfall trap?

Dear Colleagues, I was wondering if someone who has had plenty of experience experimenting with pitfall traps as a method of collecting arthropods (especially...

10 October 2017 6,482 6 View

How to compute the band structure of TM mode for 2D photonic crystals by COMSOL?

Can we use the COMSOL to compute the band structure of TM polarization for the 2D photonic crystals? If yes, how to do it? With the "Bandgap Analysis of a Photonic Crystal" in application gallery,...

19 September 2017 1,620 1 View

Why do the same primer real time PCR amplification efficiency is not the same every time?

Why do the same primer real time PCR amplification efficiency is not the same every time?

18 September 2017 8,644 2 View

Flame Retardant materials

I am looking to find commercial available Flame retardant materials so that I can implement them in my plastic pallets which are HDPE-silica composite. The presence of silica do enhance the FR...

09 July 2017 2,900 1 View

"Inflation and the Measurement Problem" written by S. Alexander, D. Jyoti, J. Magueijo. Why their model solve the cosmological measurement problem?

02 May 2017 9,389 3 View

How to calculate Power of Rayleigh Channel / Rayleigh distributed signal (multipath effect)?

27 October 2016 3,668 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View

Does the circuit modeling for planar monopole antennas using Foster canonical forms give good approximation?

Hi researchers, I am searching for some accurate way to do the circuit modeling of planar CPW-fed monopole antennas. I have gone through the literature where mostly circuit modeling is done using...

28 February 2021 7,016 1 View