Is it essential to get ethical clearance to conduct a questionnaire survey on nutritional status of the children?

one of my colleagues doing research and collecting data on nutritional status of children using questionnaires and direct observation. whether ethical clearance certificate is needed for this study.

01 February 2018 6,152 10 View

How can we differentiate the sodic (Na) soil and alkaline soil?

does the sodicity (high sodium in water or soil) and alkalinity are different?

11 December 2017 1,571 1 View

How to calculate the total organic loading rate (TOLR) in terms of chemical oxygen demand (COD)?

03 April 2016 3,246 12 View

What are the possible methods to eradicate Eichornia sp from lagoon eco system?

In most of the places they are following mechanical removal

03 April 2016 520 0 View

Is it worth to publish our research paper in Online international journals?

there are several online journals are emerging during these days. without having impact factors

07 August 2014 406 0 View

Is it possible to estimate the runoff from the residential area to the river using rainfall data and land area?

I'm looking to estimate the runoff as part of my research study (PhD) by collecting the data on daily rainfall and land area of that particular place.

02 March 2014 3,816 6 View

CALL FOR PAPERS FOR 2nd INTERNATIONAL SYMPOSIUM ON AGRICULTURE 2019 , Eastern University, Sri Lanka

Faculty of Agriculture, Eastern University Sri Lanka is organizing the 2nd International Symposium on Agriculture (ISA 2019). Date : 9th January 2019 Venue : Nallaiah Auditorium, Eastern...

01 January 1970 8,933 2 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Research on Supply Chain Management in Indian context?

Hi, I am planning to apply for the PhD degree in the Supply Chain Mgt. with specific area of "Cold Storage warehouses" during Pandemics and wars. Where lock downs and shut downs are frequent....

02 March 2021 285 2 View

How to simultaneously perform multiple biochemical assays?

I am a research scholar working on heavy metal stress on plants. I will be doing biochemical characterisation( protein, carbohydrate, proline, antioxidant enzymes and many more assays) at interval...

01 March 2021 6,999 3 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 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

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View