Can minerals change their color when the pH solution change ?

I have cultivate fungus in medium containing glucose and some minerals, such as CaCl2.2H20, MgSO4.7H20, (NH4)2SO4, and KH2PO4 in different pH (3,4,5,6,7,8,9). I set the initial pH with adding NaOH...

04 September 2019 2,587 5 View

What places do we visit when we have spent time researching?

Every 15 minutes working with a computer we must refresh our eyes by looking at distant objects. Is it true?

14 December 2018 9,360 7 View

Hi, I'm writing a thesis about stochastic frontier analysis using panel data bc95. How to test the hypothesis for parameter of inefficiency?

Hello everyone.I'm using STATA and journal of Battese and Coelli (1995) to estimate the efficiency of fiscal decentralization (two stage procedural). in the journal there is some test of...

09 September 2018 9,824 10 View

I am looking for some advises on my thesis about leadership styles and employee engagement?

Dear Colleagues, I am working on my master thesis with the topic of perceived leadership styles and its impact on employee engagement (or employee satisfaction) in the marketing research...

07 May 2018 6,117 5 View

Hello everyone, should we use Kakusan software for Bayesian analysis?

18 April 2017 4,571 3 View

Is it possible to construct a PCR primer based on the EST Clone data?

From the Microarray data (based on the EST clone), I found several genes that needs deeper research to find out the gene expression under heavy metal stress. Thus, we need to conduct an qPCR to...

28 July 2016 256 3 View

How to measure leaf density in rice or other leaf plant?

I want to measure leaf density in coffee leaf. i found one paper about leaf density in rice, but in that paper there are no ecplanation about method to measure it.

16 June 2016 3,788 3 View

Can anyone suggest some DNA plasmid isolation protocols?

I'm going to isolate plasmid from unknown soil bacteria, is there any simple plasmid isolation protocols? Since using a kit is actually my last option, so I'm trying to use manual protocols...

31 August 2014 2,053 2 View

Do all of Mer genes (in all of bacteria) have some kind of similar sequence?

Is there any similarity between Mer genes sequence in all bacteria? i'm trying to isolate mer genes from unknown bacteria from gold mining site in Yogyakarta, Indonesia. If all of the mer genes...

14 August 2014 4,433 2 View

What is the best way to assess memory spatial performance of the rat?

Assess spatial memory performance for rat

14 November 2012 7,626 6 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

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

How to improve and implement WBAN MAC and Radio modules under Castalia 3.2 ?

Hello researchers, Hello Castalia3.2 researchers I am a beginner with Castalia, I work on optimization of RFID systems used in wireless body networks. I simulated a WBAN with 10 nodes and one...

28 February 2021 400 1 View

Compact antenna for the frequency range 1 MHz-5 MHz?

Hello everybody! I have a problem with developing a compact antenna for the 1MHz-5MHz frequency range. Tell me what type of antenna can be used and what books and articles to read to perform this...

27 February 2021 7,710 4 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View