How does one directly measure the oxidation state of metals in particulate matter in aerosols collected from urban environments?

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How to prevent Vibratome Section shrinkage after 14 day culture?

I cut 50 um sections of tissue in agarose and need to culture them for 14 days before fixing.The sections have great surface area when I first section them, but after 14 days they shrink to sizes...

28 May 2024 9,861 0 View

Can 100% alcohol (95% EtOH, 5% methanol/isopropyl alcohol) be used for bacterial SEM dehydration?

I am preparing a protocol for SEM of a biofilm, but do not have easy access to 100% ethanol for the dehydration steps. Can 100% ethanol be substituted for 100% alcohol (95% EtOH, 5%...

07 May 2024 1,515 3 View

Crab identification via AI or other automated approaches?

I was curious if anyone has used AI or other software for identifying a species (particularly a crustacean or crab) automatically? I am reviewing monitoring approaches for the European green crab,...

18 April 2024 7,408 2 View

A good microscope for identification and pictures of aquatic larvae?

I am looking to get a microscope for the identification of larvae in aquatic invasive species work. Would like to use it for the identification of larvae for aquatic invasive species work....

18 April 2024 4,401 2 View

Can a single logical model incorporate objects that appear as things/objects at one scale, but relations at another?

Hello,o o o o o o o o o I have master's level training in logic and meta-logic, high marks, A's, but am not a practicing logician at all, I am a neo-empiricist pluralist (epistemic and...

18 April 2024 9,669 4 View

How to convert precipitation rate from kilogram per square meter per second (kg m-2 s-1) to millimeter per hour (mm h-1)?

Hello! I need some guidance or clarification regarding the units for precipitation rate or precipitation intensity (esp. for rainfall). I'm used to precipitation intensity being expressed in...

26 October 2023 9,704 2 View

Is this a Foraminifer?

I want to ask you if this is a foram or not. If it is, what genre or even specie we're talking about? Please. This is a sample collected in the East Pacific Ocean, specifically in the coast of...

18 September 2023 6,667 4 View

Is it common for Campylobacter lari colony size to differ greatly from primary streak to downstream plates?

Hello, I am currently doing a project requiring Camplyobacter lari growth. Our primary streak on Campy agar (similar to blood agar) produces very small (1 mm), translucent colonies, but after we...

21 August 2023 4,745 2 View

Possibility of salvaging old homogenized brain samples to look at synaptic markers?

A previous colleague homogenized brain samples and stored the supernatant at -80C. According to their lab notes, the homogenized samples were centrifuged at 13,000rpm, for 15 minutes at 4C. The...

30 July 2023 2,992 0 View

Abaqus. How do I make a set of cells using .getCells() on face object?

Hi I am trying to make a set of cells that are associated to one or more faces and save them in a set using python scripting for Abaqus CAE, but I cannot make it work. I have created and example...

22 June 2023 9,548 1 View

Could you recommend some articles on Urban Transportation System optimization and Innovation?

13 August 2024 2,595 3 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

How can I find access to heavy metal reference doses from the EPA and WHO websites?

Reference dose and Maximum acceptable concentrations HMs

03 August 2024 8,230 4 View

How do you feel about social exclusion in transport within South Africa?

Research being conducted by Stellenbosch University would like your opinion about the effects of social exclusion on emerging urban mobility options and traditional public transport services. By...

21 July 2024 4,032 0 View

Look for qualified candidates of Visiting Scholars to Southwest Jiaotong University?

We invite qualified candidates of Visiting Scholars to engage in research collaboration or deliver lectures on their research, with travel expenses covered. The visiting period is flexible,...

20 July 2024 1,165 1 View

Environmental Impact of the Organic Manure Production Unit?

Does anyone have any case studies on the Environmental Impact of Organic Manure Production Unit? Environmental Impact of a Organic Manure Production Unit Facility is what I studied but...

16 July 2024 5,400 6 View

I need to connect expert in Urban design for Health ?

I studying PhD course in Urban design for Health. I need to know in some fileds: residental block, green open space and Transport TOD. I need connect with expert in that fileds.

14 July 2024 1,892 3 View

Haven' t there been enough experiments yet to prove dark matter does not exist ?

Aristote, the founder of epistemic thinking, said that "the demonstration of an affirmative proposition is preferable to that of a negative; the demonstration of a universal to that of a...

13 July 2024 3,168 10 View

How to conduct bio accessibility analysis of Heavy metals?

for estimation of human health risks

26 June 2024 7,326 3 View

Is there a difference between the term Geospatial Analytics and Geographic Analytics ?

I am writing my master thesis about the use of Geographic Analytics in advancing urban mobility but I wasn't able to find appropriate academic sources that specifically turn around the term "...

25 June 2024 3,312 1 View