Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

What test should I use to compare two or three means, if data is not normally distributed but sample size is > 30 in each group?

I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...

01 March 2021 1,587 6 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 View

Efficiency of Proximity Feed Patch Antenna ?

Greetings to all of You! I have searched some research papers for the designing of a proximity coupled patch antenna. Researchers are talking about the impedance bandwidth of the antenna but...

24 February 2021 7,662 3 View

Please help in identification of this insect?

This insect is minute in size around 1 mm and not clearly visible with naked eye.

22 February 2021 5,907 11 View

What is causing the raw fluorescence to be negative?

Hi everyone, I would really appreciate it if someone can tell me when and why a raw fluorescence starts below zero. In the picture attached below the blue colour curve starts from a negative...

09 February 2021 4,642 3 View

How to match the XRD of a compound for which there is no JCPDS file ? Is there any other characterization to claim the synthesis of desired compound?

I have synthesized LiMgF3 using the starting precursors LiF and MgF2 via solid state diffusion method. Now I am looking for some characterization to claim the desired product, as there is no...

09 February 2021 921 3 View

Can anyone suggest me broad host range fluorescence expression vectors for Gram-positive bacteria ?

Hi everyone, I am looking for fluorescence expression vectors for expression in gram-positive bacteria present in the skin microbiome. I need to tag them with a fluorescence marker and observe...

06 February 2021 2,566 4 View

Are the hyperspectral image datasets which are publicly available at ehu.eus website atmospherically and geometrically correct?

I've come across a couple of publicly available hyperspectral image datasets from the website http://www.ehu.eus/ccwintco/index.php/Hyperspectral_Remote_Sensing_Scenes Now, my concern is...

05 February 2021 3,550 1 View

Any recommendations for open-source survey form builder, which has option for semantic differential scale questions apart from Likert scale?

Asking this as Google forms doesn't allow multiple items in a semantic differential format.

04 February 2021 5,869 4 View

Can water be extracted from Olivine?

I have always been interested in geology and wondered about how unique structures of materials behave in different circumstances. I stumbled upon Olivine, the magnesium iron silicate, and heard...

28 February 2021 7,330 4 View

Sample preparation for ceramics i.e. iron silicate (fayalite), iron oxides, alumina, spinel mineral (hercynite)?

Recommendations in preparing ceramics for nanoindentation and in the process minimize introducing stresses from sample preparation i.e. polishing stage.

02 February 2021 6,211 3 View

Can anyone recommend me a NMR Handbook?

Hi, I've been searching for a NMR Handbook with 29Si chemical shifts information but I can't find one. Also I've tried to find an online database with that kind of info but I have no lucky. Can...

02 February 2021 307 3 View

Can we mix elemental powders of 325 mesh using an agate mortar and pestle?

Elemental Powders like Titanium, vanadium, tungsten, zirconium, hafnium.

04 January 2021 7,357 1 View

How to get nanocomposite of PEEK with Zirconia ?

Need a lengthy PEEK with Zirconia based nano composite of 180 mm length. Which method is possible? Tried injection molding no proper mix. Solvent casting process is also very costly. Kindly anyone...

13 December 2020 4,329 5 View

Regarding the O 1s XPS pf phyllosilciates, the peak near 531 belongs to Oxygen vacancy sites or O bonded to the Si from the silicate tetrahedra?

In O 1s spectra, usually the peak near 531 eV belongs to oxygen vacancy sites in oxides, however, in silicates, these peaks are often reported to originate from O-Si. I am confused if the intense...

10 December 2020 9,496 2 View

Why silicate gel from TLC plate cannot be used to make another plate?

I was thinking about scrapping of the silicate layer from TLC plate and using it on another glass plate. From what I read online, this does not sound like it will work, so my question is why not....

19 November 2020 2,233 3 View

How to make SiO2 layer long lasting?

I make three layer solar cell (TiO2-SiO2-TiO2/SiO2) with doctor blade method but SiO2 layer broke all layer when it dry. I have add some adhessive like PVA, CMC, or sodium silicate but the result...

12 October 2020 630 6 View

What is the driving force for the Stress Induced Transformation Toughening (one of the toughening mechanisms in ZIRCONIA TOUGHENED ALUMINA)?

It has been established that the tetragonal to monoclinic phase transformation of zirconia can be used to improve the toughness. The driving force for this transformation is the temperature...

01 October 2020 9,634 4 View

Producing sodium silicate from waste glass?

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06 September 2020 5,246 4 View