Zanimljivi novinski i drugi članci

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Heinz
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Re: Zanimljivi novinski i drugi članci

Post od Heinz » 15 Avg 2019, 14:20

https://apnews.com/b92cfb7eec02416086b47cdf61ca7cda
Pure as snow? Scientists say air carrying plastics to Arctic

Scientists say they’ve found an abundance of tiny plastic particles in Arctic snow, indicating that so-called microplastics are being sucked into the atmosphere and carried long distances to some of the remotest corners of the planet.

The researchers examined snow collected from sites in the Arctic, northern Germany, the Bavarian and Swiss Alps and the North Sea island of Heligoland with a process specially designed to analyze their samples in a lab.

“While we did expect to find microplastics, the enormous concentrations surprised us,” Melanie Bergmann, a researcher at the Alfred-Wegener-Institute in Bremerhaven, Germany, said.

Their findings were published Wednesday in the journal Science Advances.

Previous studies have found microplastics — which are created when man-made materials break apart and defined as pieces smaller than 5 millimeters — in the air of Paris, Tehran and Dongguan, China.

The research demonstrated the fragments may become airborne in a way similar to dust, pollen and fine particulate matter from vehicle exhausts.

While there’s growing concern about the environmental impact of microplastics, scientists have yet to determine what effect, if any, the minute particles have on humans or wildlife.

Bergmann, who co-authored the study, said the highest concentrations of microplastics were found in the Bavarian Alps, with one sample having more than 150,000 particles per 1 liter (0.26 gallons.)

Although the Arctic samples were less contaminated, the third-highest concentration in the samples the researchers analyzed — 14,000 particles per liter — came from an ice floe in the Fram Strait off eastern Greenland, she said.

On average, the researchers found 1,800 particles per liter in the samples taken from that region.

Martin Wagner, a biologist at the Norwegian University of Science and Technology who wasn’t involved with the study, said the extremely high concentrations could be partly attributed to the methods the researchers used, which allowed them to identify microplastics as small as 11 micrometers, or 0.011 millimeters — less than the width of a human hair.

“This is significant because most studies so far looked at much larger microplastics,” he said. “Based on that, I would conclude that we very much underestimate the actual microplastics levels in the environment.”

“Importantly, the study demonstrates that atmospheric transport is a relevant process moving microplastics around, potentially over long ranges and on a global scale,” Wagner added. “Also, snow may be an important reservoir storing microplastics and releasing it during snow melt, something that has not been looked at before.”

Bergmann said the microplastics detected in the study included varnish that may have been used to coat cars and ships, rubber found in tires and materials that could have originated in textiles or packaging.

The authors suggested that the airborne distribution of microscopic plastic particles has so far been neglected as a source of contamination and should be monitored in standard air pollution monitoring schemes.

“We really need to know what effects microplastics have on humans, especially if inhaled with the air that we breathe,” Bergmann said.

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ljuba
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Re: Zanimljivi novinski i drugi članci

Post od ljuba » 27 Nov 2019, 08:23

Sebastian Junger: Is Our Material Wealth Undermining Our Happiness & Health?


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Xepoj87
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Re: Zanimljivi novinski i drugi članci

Post od Xepoj87 » 27 Nov 2019, 10:46

Ovo je jako povrsna analiza i ne, materijalne stvari nisu problem.
Veče u kome se svi slazu je protraceno.
Prvi znak gluposti je potpuno odsustvo stida.

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Re: Zanimljivi novinski i drugi članci

Post od havijer » 24 Dec 2019, 09:53

https://www.krik.rs/razgovori-narko-bos ... mog-druga/

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ljuba
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Re: Zanimljivi novinski i drugi članci

Post od ljuba » 16 Mar 2020, 09:30

PS: Nije teorija zavere :) na zalost...


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snork
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Re: Zanimljivi novinski i drugi članci

Post od snork » 25 Apr 2020, 00:00

Против издвајања Косова из Електромреже Србије гласали само БиХ, Словачка и Србија:

http://www.politika.rs/scc/clanak/45286 ... a-i-Srbija
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shandu90
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Zanimljivi novinski i drugi članci

Post od shandu90 » 25 Apr 2020, 01:03

Sto bi rekao jedan prijatelj iz Petrovca ‘Samo Slovak Srbina Spasava’ :D
Nece siptari to odraditi nikad, to su samo medijske fore. U buli su oni po skoro svim pitanjima. Sto se tice Obilica i ostalih nasih fabrika, uputstva su na ruskom (kao i sve ostalo). To je siptarima veliki problem, sto naravno nece da priznaju. Nasi ljudi odrzavaju to.


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snork
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Re: Zanimljivi novinski i drugi članci

Post od snork » 25 Apr 2020, 01:25

Ma nije problem što su uputstva na ruskom, nego što Šiptari nemaju veze sa životom. :) Tačno je da uglavnom rade Srbi, ali su angažovali i dosta Hrvata oko termoelektrane i elektro-energetskog sistema. Tako mi kaže kolega koji je rodom iz Obilića i često ide tamo.

Evo i jednog malo više optimističkog teksta u vezi sa Kosovom (objavio Washington Post):

Нека се пропала стратегија Била Клинтона за Косово угаси током пандемије корона вируса

https://dostajebilo.rs/blog/2020/04/24/ ... na-virusa/
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shandu90
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Re: Zanimljivi novinski i drugi članci

Post od shandu90 » 25 Apr 2020, 11:48

Oduvek su oni bili pacijenti svoje vrste. Vide i oni da od Diznilenda nema nista, da su ih politicari iskoristili.
Ja sam bio u martu dole (prvi put posle ‘99) i kakvu su cigan malu napravili, ono je zalosno. Svo poljoprivredno zemljiste su preradili u gradjevinsko. Od Merdara se ulazi u Podujevo (gde je zestoka klanica bila ‘99 izmedju lokalaca) pa do PR nema praznog prostora usput. To je nekih 40ak kilometara. Samo auto placevi, mehanicari (striktno mercedes), kafane, gluposti. Jedino oko Gazimestana i spomenika nisu puno dirali. Mreza auto puteva im je dobra, vozi se po ogranicenju i tu stvarno nema sale jer panduri reaguju u roku od odmah. U saobracaju haos, nece niko da te pusti, parola snadji se. Ta mreza auto puteva im je jedina dobra stvar, brzo se stigne svuda. Od Pristine do Prizrena se stize za pola sata, pre rata je trebalo 1-1.5h.


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ljuba
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Re: Zanimljivi novinski i drugi članci

Post od ljuba » 13 Jun 2020, 11:11


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Re: Zanimljivi novinski i drugi članci

Post od Geza » 16 Dec 2020, 23:25

Ako vam ove godina nije bila dovoljno naporna...

Danes discover PREDATOR FUNGUS that keeps fly victims alive & active to spread spores to others
https://www.rt.com/news/509846-denmark- ... ngi-alive/

Danish scientists have found that two newly discovered predator fungi species consume their hosts’ bodies while keeping them alive and “energized,” so that the ‘victims’ spread around spores while moving and even mating.
The two ‘zombifying’ fungi are called Strongwellsea tigrinae and Strongwellsea acerosa. They prey exclusively upon two local species of flies, according to the University of Copenhagen.

While ‘eating’ the flies from the inside, the fungi create large holes in their abdomen area, to spray their spores.

Slika

Most curiously, while similar types of fungi often simply kill their hosts, ‘tigrinae’ and ‘acerosa’ have their flies buzzing around for days. The researchers believe that the fungi produce “amphetamine-like substances” which keep their hosts’ energy levels high up until the end.

Thus, in keeping their victims alive, the fungi turn them into moving spore spreaders that could even attract other flies in desire of mating.

“This is an exciting and bizarre aspect of biodiversity that we have discovered in Denmark,” said professor Jorgen Eilenberg, pointing out the mere discovery of such previously unknown biodiversity was valuable in itself.

“At the same time, this is basic new knowledge that can serve as a basis for experimental studies of infection pathways and the bioactive substances involved,” Eilenberg added, predicting that the new discovery could pave the way for future medical breakthroughs.
Najgore je svađati se sa budalom. Prvo te spusti na svoj nivo, a onda te dotuče iskustvom...
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Heinz
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Re: Zanimljivi novinski i drugi članci

Post od Heinz » 17 Dec 2020, 08:17

https://news.yahoo.com/messenger-rna-lo ... 30699.html
Messenger RNA: How a long shot idea led to Covid-19 vaccines

Hungarian-born scientist Katalin Kariko's obsession with researching a substance called mRNA to fight disease once cost her a faculty position at a prestigious US university, which dismissed the idea as a dead end.
Now, her pioneering work -- which paved the way for the Pfizer and Moderna Covid-19 vaccines -- could be what saves the world from a 100-year pandemic.
"This is just kind of unbelievable," she told AFP in a video call from her home in Philadelphia, adding she was unused to the attention after toiling for years in obscurity.
It shows why "it's important science should be supported on many levels."
Kariko, 65, spent much of the 1990s writing grant applications to fund her investigations into "messenger ribonucleic acid" -- genetic molecules that tell cells what proteins to make, essential to keeping our bodies alive and healthy.
She believed mRNA held the key to treating diseases where having more of the right kind of protein can help -- like repairing the brain after a stroke.
But the University of Pennsylvania, where Kariko was on track for a professorship, decided to pull the plug after the grant rejections piled up.
"I was up for promotion, and then they just demoted me and expected that I would walk out the door," she said.
Kariko didn't yet have a green card and needed a job to renew her visa. She also knew she wouldn't be able to put her daughter through college without the hefty staff discount.
She decided to persist as a lower-rung researcher, scraping by on a meager salary.
It was a low point in her life and career, but "I just thought...you know, the (lab) bench is here, I just have to do better experiments," she said.
The experience shaped her philosophy for dealing with adversity in every aspect of life.
"Think through and then at the end of it, you have to say 'What can I do?'
"Because then you don't waste your life."
The determination runs in the family -- her daughter Susan Francia did go to Penn, where she earned a Master's degree, and won gold medals with the US Olympic rowing team in 2008 and 2012.

- Twin breakthroughs -
Inside the body, mRNA delivers to cells the instructions stored in DNA, the molecules that carry all our genetic code.
By the late 1980s, much of the scientific community was focused on using DNA to deliver gene therapy, but Kariko believed that mRNA was also promising since most diseases are not hereditary and don't need solutions that permanently alter our genetics.
First though, she had to overcome a major problem: in animal experiments, synthetic mRNA was causing a massive inflammatory response as the immune system sensed an invader and rushed to fight it.
Kariko, together with her main collaborator Drew Weissman, discovered that one of the four building blocks of the synthetic mRNA was at fault -- and they could overcome the problem by swapping it out with a modified version.
They published a paper on the breakthrough in 2005. Then, in 2015, they found a new way to deliver mRNA into mice, using a fatty coating called "lipid nanoparticles" that prevent the mRNA from degrading, and help place it inside the right part of cells.
Both these innovations were key to the Covid-19 vaccines developed by Pfizer and its German partner BioNTech, where Kariko is now a senior vice president, as well as the shots produced by Moderna.
Both work by giving human cells the instructions to make a surface protein of the coronavirus, which simulates an infection and trains the immune system for when it encounters the real virus.

- New treatments -
The mRNA quickly degrades and the instructions it gives the body aren't permanent, making the technology an ideal platform for a variety of applications, said Kariko.
These could range from new vaccines for influenza, faster to develop and more effective than the current generation, to new disease treatments.
For example, AstraZeneca is currently working on an mRNA treatment for heart failure patients, which delivers signaling proteins that stimulate the production of new blood vessels.
Though she does not want to make too much of it, as a foreign-born woman in a male-dominated field, she occasionally felt under-estimated -- saying people would approach after lectures and ask "Who's your supervisor?"
"They were always thinking, 'That woman with the accent, there must be somebody behind her who is smarter or something,'" she said.
Now, should everything go well with the Pfizer and Moderna vaccines, it is not hard to imagine the Nobel Prize committee rewarding Kariko and fellow mRNA researchers.
That would be bittersweet for Kariko, whose late mother would call her every year after the announcements to ask why she hadn't been chosen.
"'I never in my life get (federal) grants, I am nobody, not even faculty'" she would laugh. To which her mother would reply: "But you work so hard!"

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snork
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Re: Zanimljivi novinski i drugi članci

Post od snork » 02 Mar 2021, 17:01

Za vreme velepošasti nosite hihobran da ne završite na disajniku: Izbor za najbolju novu hrvatsku reč

Hrvatski časopis "Jezik" i Fondacija "Dr Ivan Šreter" objavili su 19 reči koje su ušle u uži izbor takmičenja za najbolju novu hrvatsku reč i nagradu "Dr Ivan Šreter" za 2020, a tri reči uskoro će biti proglašene najboljima. Od 19 reči, čak osam njih pokušava da zameni tuđice koje su povezane sa epidemijom kovida-19.

Za reč pandemija predložena je velepošast, za komorbiditet subolest, za respirator dišnik ili disajnik, a za lokdaun (zaključavanje) društvostaj ili obustavka. Reč hihobran predložena je za vizir, stakloplastično pomagalo koje štiti od kijanja i ostalih kapljičnih napada, a za samoizolaciju – samoosama.

Za njuzleter predložen je novosnik, za regenerator obnovnik, za solarnu ploču suncozor, za osobu koja govori znakovnim jezikom za osobe oštećenog sluha reč rukozborac, za skrinšotovanje preklikanje, za tabu zabranjenica, a za korektor – prebrisač ili prebrisnik.

Umesto novčanika za kartice (etui) predložena je nova reč kartičnik, a šekspiriti za nekoga ko se na razmetljiv i neopravdan način pravi/prikazuje velikim piscem, tj. kad se neko neutemeljeno busa da je ravan čak i Vilijamu Šekspiru.

Na takmičenje za najbolju novu hrvatsku reč pristigle su 244 reči od 166 predlagača, javlja agencija Hina.


Izvor: https://rs-lat.sputniknews.com/zivot/20 ... atsku-rec/
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ljuba
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Re: Zanimljivi novinski i drugi članci

Post od ljuba » 10 Apr 2021, 09:10

https://www.regavim.org/the-secret-tunn ... icipality/

Jerusalem, katolicka crkva, tuneli i tajnovitost :)

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snork
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Re: Zanimljivi novinski i drugi članci

Post od snork » 19 Feb 2022, 05:37

Matijas Kincel: "Put u rat". Knjigu je kod nas izdao "Službeni glasnik", a "Politika" ju je pre par meseci objavljivala u nastavcima. Evo ih dva poglavlja koja su mi posebno bila zanimljiva:

(Klik, pa još jedan klik za punu veličinu slika - 1920 x 2504)

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