What fraction of asteroids located in asteroid families in the Main belt?

More Ivana Milic Zitnik's questions See All

How does underfilling vacuum blood collecting tubes affect the hemolysis index differently than it does with the other tubes?

This inquiry is based on the article published by Neuwinger, Nick et al. : “Underfilling of vacuum blood collection tubes leads to increased lactate dehydrogenase activity in serum and heparin...

12 April 2024 9,679 0 View

Can anyone recommend an easy method or technique to determine content of omega-3 fatty acids in plant material?

Hello. I am wondering if there is some simpler techniques for omega-3 determination in plants than HPLC, after a quick search I could not find anything else. Thank you

06 February 2024 2,148 1 View

Do you live in the Arctic region or do research in this area?

Do you live in the Arctic region or do research in this area? What do you think about the Arctic's development? Please take part in ArcticHubs project Q-survey and help us in creating the most...

30 August 2023 231 0 View

What mathematical or statistical methods are used to quantify and discuss survey questions?

Are there certain methods, for instance T-tests or ANOVAs, for certain ways a survey question is asked?

29 April 2023 7,336 2 View

What is the best protocol for chemical/electro transformation for anaerobic bacteria?

Which protocols can be used for transformation of anaerobic bacteria from Azoarcus genus? So far I tried chemical transformation with CaCl2 buffer and electrotransformation with MOPS, but they...

11 December 2022 9,863 1 View

How to evaluate data from TG-FTIR?

Recently I started to measure bioplastics in sewage sludge using TG-FTIR from PerkinElmer. One measurment of pure PLA turned out pretty good with nice peaks. All of the others had quite a lot...

26 June 2022 6,773 2 View

Dear all, can anyone indicate approximate price of Tewameter TMHex or previous model Tewameter TM300?

Dear all, can anyone indicate approximate price of Tewameter TMHex or previous model Tewameter TM300? Thank you :-)

02 February 2022 5,674 2 View

How can I group 2 survey questions (variables in the data) into 1 variable of interest?

Basically, what I want to do is, group correlated variables - for e.g. several questions give the end result = internal sources of financing. I would like to have 1 variable made out of these...

15 November 2021 7,647 13 View

How do you technically include control variables in a regression analysis?

I have a survey data which includes both my dependent and independent variables. I will do a principal component analysis to get rid of the multicolinearity problem. Then, I want to do a...

15 November 2021 3,310 3 View

How to remove Fe and Cu contamination from DNA samples?

Hello, I am having hard time with 16S amplification of my gDNA. My DNA is extracted from environmental samples containing large amount of Cu and Fe (and other metals). Both (direct and indirect)...

22 August 2021 2,432 2 View

Stability of the Solar System: Insights from Einstein’s Equations ?

The stability of the Solar System is a complex subject that blends the classical framework of Newtonian mechanics with the modern insights provided by General Relativity (GR). Understanding this...

07 August 2024 2,569 1 View

Can we eliminate the stress singularity at the tip of the crack by manipulating the elastic constants?

The aim of the research here is to prevent the propagation of the crack in the fabricated elastic medium with useful applications.

25 July 2024 9,976 3 View

Can anyone kindly suggest research topics in the area of thermodynamics, heat transfer, fluid mechanics or renewable energy?

I am an undergraduate mechanical engineering student seeking suggestions on topics related to either thermodynamics, fluid mechanics, heat transfer or renewable energy for my final year project....

24 July 2024 4,058 5 View

Is there a good macro photography kit for on-site metallurgical investigation?

I am looking to purchase a photography kit for onsite metallurgical investigations, such as capturing photos of worn areas, hot tears, cold tears etc. Could anyone suggest me a good...

22 July 2024 3,490 2 View

Unification of General Relativity and Quantum Mechanics is possible ?

How can anyone develop a theoretical framework that successfully unifies general relativity and quantum mechanics? how this new theory should accurately describe gravitational interactions at...

10 July 2024 5,040 8 View

How can we improv the sustainability of decentralized wastewater treatment systems in resource-limited settings through novel bio-inspired approaches?

Decentralized systems in resource-limited settings often struggle with efficiency, sustainability, and adaptability to local conditions. Could biomimetic and bio-inspired approaches offer...

01 July 2024 4,561 4 View

Please let me know where I can study the scaling effects of experimental studies on soil slopes in geotechnical engineering?

I am looking to simulate real-world landslides in a laboratory setting and measure parameters such as volumetric water content, pore water pressure development, seepage patterns, and ground...

23 June 2024 8,340 2 View

If modulus of elasticity is divided by any inertial or dynamic pressure (1/2rhov^2), is there any dimensionless number present to represent it?

While deriving for a momentum equation with elastic stress effects, I am planning to put a ratio between elastic modulus (in Pa) and dynamic pressure (in Pa) in a simplified form. I am not...

23 June 2024 8,059 1 View

Geometrically Derived Formula for Day Length Based on Latitude and Time of Year?

Is there any geometrically derived mathematical expression for the duration of the natural day at any latitude and any time of the year?

23 June 2024 9,895 2 View

Is it possible to derive quantum mechanics with classical logic?

In the article linked below, a derivation is done using strictly classical logic and experimental results as the premises. Through logic alone, the processes that mimic superposition, quantum...

16 June 2024 5,880 19 View