Where to find free online essays/thesis?

Is there a website that has free journals- online university assignment

28 December 2020 683 3 View

Is demonstration (in science) an effective way to support (secondary school) students learning?

Any good sources?

27 December 2020 2,122 3 View

How to compute empirical variogram?

Considering the regionalized variable of samples of grades of copper from 15 observation points taken around the Dilla area only in one direction (isotropy) in space. Then the data is presented on...

28 February 2020 5,104 3 View

How much of mineral element can be served by a portion of food in comparison to recommended daily intake?

The mineral contents were calculated for a certain grains in their raw form. How can we calculate how much a given mineral, say; zinc or iron can be served by a portion of the flour sample per 100...

15 August 2019 4,731 2 View

Does stability of Organic solar cells under an ultra short blue light and a blue light from solar spectrum differe even if they have the same flux?

I generated a blue ligh of 384 nm by frequency doubling a laser source of 775 nm with 150 fs duration. I then measured the degradation of my polymer films. But I am not sure the fact that this...

23 October 2018 6,541 2 View

What is the general behavior in relation to the correlation between the protein content and the fat content of plant foods, specifically legumes?

There are various arrays of trends and interactions between nutrients in a given food sample. The correlation between some of them is clear, as evidenced from my own result while working on the...

09 October 2017 4,377 4 View

What do the following ratios indicate in phytochemical and antioxidant study?

What is the implication of the ratio of TFC/TPC in phenolics analysis and antioxidant potency composite (APC) index? In quite a large number of articles, the TFC/TPC is estimated to be less than...

20 September 2017 2,234 2 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

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

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 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

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View