How can I check how different treatments maintain a certain pattern?

Hi there, I have a network where I have used different aggregation methods for its nodes. Now I want to see if these aggregation methods changed their ranking of importance and their importance...

28 January 2021 5,513 3 View

Why is Kendall's Tau always so high?

Hi there, I am trying to estimate the agreement of judges on the ranking of certain individuals - in particular, the agreement of all other judges with the first judge. I was thinking to use...

28 January 2021 3,121 4 View

Standard addition calibration without blank matrix available?

I have a problem of analytical chemistry. We are working on a spectroscopy technique (FTIR) for the quantification of a mineral phase in complex matrices. We intended to use chemometric techniques...

12 January 2021 7,739 1 View

How to obtain miRNA expression data in specific tissue with mean and coefficient of variation?

Hello everyone, I'm looking for miRNA expression level data (as measured by RNA-seq) in a specific tissue, but all papers I have consulted (and their relative supplemental material) do not report...

14 November 2020 9,762 2 View

Can CTAB stored in a refrigerator still be used to create extraction buffers?

Hello, Our lab is working on DNA extraction. We are creating new solutions for a new protocol. Unfortunately when our main CTAB (hexadecyltrimethylammonium bromide) stock was stored from last...

13 February 2020 8,652 1 View

Could anyone teach me how to use the "SR 7500 DC" SPR?

I should carry out a set of SPR experiments. In my lab I have the Reichert model "SR7500DC". I would need someone who could teach me how use this instrument and, above all, how to do the data...

29 December 2019 3,880 2 View

Is there an easy way to unify sequences of COI-5P from the two database BOLB and GenBank (NCBI)?

HI, I would like to know if there is an easy way to unify sequences downloaded from BOLD and from NCBI in a single dataset avoiding repetitions. Thanks, Emanuele

27 March 2019 6,622 6 View

Power output of a micro Kaplan turbine that reduces linearly during 3 days from 16 kW to 13.65 kW with constant hydraulic and blades configurations?

There is a micro Kaplan hydro plant: Flow rate: 0.58 mc/s Head: 4.85 m RPM: 625 Max electrical power: 16.5 kW Generator+gearbox efficiency: 0.89 Maximum Turbine efficiency: 0.67 Draft tube:...

16 October 2018 7,111 3 View

Would you like to suggest me online public data where orthopaedic/musculoskeletal research is applicable?

I am trying to start a research basing on free published online dataset. My field of research is Orthopaedics. Thank you for any help!

08 August 2018 5,475 6 View

Does anyone know a good software to compile borehole log?

I need a software to write and compile borehole log for geological and geotechnical purposes. Thanks

19 February 2018 8,961 8 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 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

What are the saturated salt solutions that can give specific relative humidity of 35%, 65% and 95% for conditioning wood specimens?

Due to the unavailability of climate rooms, I want to carry out an experiment that require the use of certain saturated salt solutions especially those that can condition the wood specimen to 35%,...

25 February 2021 8,139 1 View

How can I obtain time series data by country on night-time light (brightness) ?

Hi everyone, Please, how can I obtain time series data by country on night-time light (brightness) ? I've tried, but so far all I can find are maps. I am looking for numerical data, especially in...

24 February 2021 8,625 4 View

To date, according to health authorities, 30% of the population's diseases are initiated by drinking water pollution. Do you know this problem?

The main studies are as follows: * regular and timely receipt of information about the state of the environment using automated systems (stationary and mobile); * operational analysis of the...

23 February 2021 912 5 View

What are difference between laser diodes, simple light emitting diodes and power light emitting diodes when operated in the visible spectrum ?

I want to illuminate a scene (small space) using LED to capture photographs or videos of some tiny objects inside the space. But am not sure if I should use a Laser LED, or simple LED or power...

22 February 2021 4,240 4 View

How to interpret this FTIR spectrum of pyrolyzed hydrochar?

20 February 2021 2,840 3 View

No title

The regenerated cellulose film was prepared by zinc chloride/H2O system. The zinc chloride had been washed away in the regeneration process, and the wet film which was not dried had uniform...

18 February 2021 9,538 1 View