Granata and Bennet found that when cocontraction was not incorporated into the model, the forces on the back were indeed much smaller than those typically encountered in lifting tasks. But when cocontraction was factored in, the force on the spine increased by as much as 400 percent, depending on the height of the handle and the amount of force applied.
McCain is careful to note that his proposed multinational organization would not be like Woodrow Wilson's failed "League of Nations." Rather, McCain says the organization would be far more similar to what Theodore Roosevelt favored — a group of "like-minded nations working together in the cause of peace." "It could act where the U.N. fails to act," McCain says. Such a new body, he says, could help relieve suffering in Darfur, fight the AIDS epidemic in Africa, develop better environmental policies, and provide "unimpeded market access" to countries sharing "the values of economic and political freedom."
Ett mått på luftkvalitet som man inte känt till så länge är halten av partiklar under 10 mikrometer i storlek, s k PM10. När man började mäta det så gick Stockholm från att ha uppfattats vara en av Europas renaste huvudstäder vad gäller luft, till att bli en av de smutsigaste. Dubbdäck mot asfalt är orsaken. Ja, och bristen på ringleder för trafiken.
På Stockholms och Uppsala läns luftvårdsförbunds sajt webbsajt kan man läsa mer och zooma in olika områden av Storstockholm. Bilden ovan är från deras sajt.
Wikpedia kriver följande om små partiklar:
(min fetstil)The effects of inhaling particulate matter has been widely studied in humans and animals and include asthma, lung cancer, cardiovascular issues, and premature death.
The size of the particle is a main determinant of where in the respiratory tract the particle will come to rest when inhaled. Larger particles are generally filtered in the nose and throat and do not cause problems, but particulate matter smaller than about 10 micrometres, referred to as PM10, can settle in the bronchi and lungs and cause health problems. The 10 micrometer size does not represent a strict boundary between respirable and non-respirable particles, but has been agreed upon for monitoring of airborne particulate matter by most regulatory agencies.
Similarly, particles smaller than 2.5 micrometres, PM2.5, tend to penetrate into the gas-exchange regions of the lung, and very small particles (< 100 nanometers) may pass through the lungs to affect other organs. In particular, a study published in the Journal of the American Medical Association (Pope et. al, 2002), indicates that PM2.5 leads to high plaque deposits in arteries, causing vascular inflammation and atherosclerosis — a hardening of the arteries that reduces elasticity, which can lead to heart attacks and other cardiovascular problems. Researchers suggest that even short-term exposure at elevated concentrations could significantly contribute to heart disease.
There is also evidence that particles smaller than 100 nanometres can pass through cell membranes. For example, particles may migrate into the brain.
It has been suggested that particulate matter can cause similar brain damage as that found in Alzheimer patients. Particles emitted from modern diesel engines (commonly referred to as Diesel Particulate Matter, or DPM) are typically in the size range of 100 nanometres (0.1 micrometres). In addition, these sootcarcinogenic components like benzopyrenes adsorbed on their surface.
For the study, researchers used lumbar puncture to determine if there were elevated levels of biochemical markers for brain injury in the cerebrospinal fluid (CSF) of 14 amateur boxers. Boxers were tested after a fight and then again three months after rest from boxing. The study also included 10 healthy men who were not athletes. The study found high CSF levels of neuronal and glial markers suggestive of brain damage after a fight. A particular marker for neuronal damage, neurofilament light (NFL), was four times higher in boxers within 10 days of the fight as compared with healthy non-athletes. These increased levels returned to normal after three months rest from boxing.Men amatörfotbollsspelare som nickade mycket klarade sig OK.
Rysslands statliga järnvägar uppgav enligt Reuters att bolaget ska utföra underhållsreparationer på järnvägsförbindelserna till Estland. Även den omfattande kolexporten stoppas, med motiveringen att det saknas godsvagnar.Och det där maktspråk, när makten inte behöver vara ärlig med vad den vill.
Carl B Hamilton menar i kväll i sitt nyhetsbrev att EU-Ryssland-toppmötet i Samara bör stoppas. Jag kan inte hitta en länk till det på WWW, så jag postar ett långt citat ur det:
Läs mer: Ryssland stoppar energi till Estland (DN)Än en gång använder Ryssland sin energiexport som utrikespolitiskt vapen - denna gång mot Estland. Sovjetisk militär styrka är återigen utbytt mot ryska störningar i energiexporten.
Det allvarliga är dock inte avbrottet i exporten eller dess ekonomiska konsekvenser.
Kol och olja kan Estland liksom alla andra tämligen enkelt importera från världsmarknaden. Dessutom, om så krävs åligger det framför allt grannländer som Sverige och andra östersjöstater att ställa upp för Estland med kol och olja om det skulle uppstå en bristsituation och svårigheter för Estland med energitillförseln. Detta bjuder framför allt EU-medlemskapet - t ex i det utkast till EU-fördrag som ligger på bordet - men även andra internationella överenskommelser om solidaritet i händelse av problem med oljeförsörjningen.
Nej, det mest allvarliga - om nu inte exportstoppet genast hävs - är självsvåldigheten och gammeldags stormaktsfasonerna i dagens ryska utrikespolitik.
Rysslands brist på respekt för ett annat lands suveränitet och oblyga försök till energipolitisk kanonbåtsdiplomati mot Estland är fullkomligt oacceptabelt, har vi ingen anledning tåla, och väcker de mest obehagliga historiska associationer.
Det kunde varit Sverige om vi t ex hade vant oss vid att importera naturgas från Ryssland!
Det ryska uppträdandet duger inte i dagens Europa. EU kan nu lika gärna ställa in det planerade toppmötet med Ryssland i Samara. Det mötet syftade till att förhandla fram ett nytt partnerskapsavtal EU-Ryssland. Möjligheten att lyckas i den förhandlingen är nu minimal. Att Sverige begär att EU ställer in mötet vore en solidaritetsmarkering gentemot Estland. Ryssland skall icke ostraffat söka sätta sig på ett EU-land ena veckan, och veckan därpå få förmånen att träffa EU:s ledartrojka för att förhandla om ett partnerskapsavtal.
Det som nu sker kommer att slå tillbaka mot Ryssland i hela EU-kretsen - och särskilt i länderna som låg under 50 år av sovjetiskt förtryck, som de baltiska staterna och Polen.
Mitochondria control the process known as apoptosis, the programmed death of abnormal cells that is the body's primary defense against cancer. "It looks to us," says Becker, "as if the cellular surveillance mechanism cannot tell the difference between a cancer cell and a cell being reperfused with oxygen. Something throws the switch that makes the cell die."
on Wednesday May 02, @04:41 (#18950705) Every surgeon knows about reprofusion injury. You can go to Barnes & Noble and look it up in a surgery textbook.
I don't understand why Newsweek says it's new or that it wasn't known in 1993. I assume those doctors came up with some new detail in its treatment.
But here lies the problem: the MI5 should not have been stretched so thin. As the MI5 correctly points out, “when the fertiliser plot took place it was one of 50 networks of which the Service was aware” and the agency could not possibly start a new investigation. The MI5 was simply understaffed to deal with a domestic threat of that magnitude. And the problem is not just a British one. 3/11, the other major attack perpetrated by al Qaeda-inspired networks in Europe, is characterized by eerily similar circumstances. Jamal Zougam, one of the men currently standing trial in Madrid for his crucial role in the bombings, was also known to local intelligence services, but because of their lack personnel, no detailed investigation on him could be carried out.
I Moskva fortsatte ryska aktivister att belägra den estländska ambassaden. En ung man rev ned den estniska flaggan och folkmassan blockerade polisens arbete, rapporterade nyhetsbyrån Interfax
Many people find it hard to see Haidinger's brush initially. It is very faint, much more so than generally indicated in illustrations, and, like other stabilized images, tends to appear and disappear. It is most easily seen when it can be made to move. Since it is always positioned on the macula, there is no way to make it move laterally, but it can be made to rotate, by viewing a white surface through a rotating polarizer, or by slowly tilting your head to one side.
In June, U.S. researchers will announce the first direct link between cancer prevention and the sunshine vitamin. Their results are nothing short of astounding. A four-year clinical trial involving 1,200 women found those taking the vitamin had about a 60-per-cent reduction in cancer incidence, compared with those who didn't take it, a drop so large — twice the impact on cancer attributed to smoking — it almost looks like a typographical error.
The revolution in Vitamin D research came with the discovery that D is "activated" (25OH-D3 turns into 1,25OH-D3) in a variety of different tissues of the body, not just the kidneys.Which body tissues do we know can "activate" Vitamin D3? Here's some: prostate tissue, colon tissue, breast tissue. Where are some popular places that cancer likes to form? Same list. Hmmm.
...
There is a simple hypothesis (far from proved, but I'll bet my pill taking regimen on it for now) that explains this: local tissue conversion of 25OH-D3 to 1,25OH-D3 shuts down as soon as serum levels of 25OH-D3 start to decline, and doesn't start up again until serum levels stabilize.
If this hypothesis is true, then allowing your vitamin D3 serum levels to drop during the winter may be as bad for you as just having low levels of vitamin D3 all year round.
http://science.slashdot.org/comments.pl?sid=232675&cid=18920401
The reason that be is this: a fair-skinned person sitting naked in the sun at the equator may make as much as 20,000IU of Vitamin D in 20 minutes. Now go to your grocery store and find a multi-vitamin with Vitamin D in it. It will likely have about 200IU in it. Now try taking 100 of those so you will get the same effect as sitting in the equatorial sun for 20 minutes. Ooops -- you just overdosed on a lot of other substances!
This discovery that the body makes huge amounts of Vitamin D via sunlight is part of what led to the revolution in Vitamin D research. It's hard to look at that number and not ask: WHY, did we evolve to make such large amounts of Vitamin D?
Efter några hektiska, blåsiga och under stundom regniga dagar (vilket är ovanligt i Andalusien där det annars är 330 soldagar om året) i först Cadiz och sedan Jerez styr vi åter bilen mot Costa de la Luz, ”Ljusets kust”, för att njuta av solen
Surprisingly, one of the wettest villages in Spain is Grazalema in the Sierra de Grazalema in Western Andalusia with an average of 2,153 mm a year. Although this value is extreme, much of the provinces of Cadiz and Huelva , and the Sierra de Cazorla receive more than 1000mm of rain a year, double that of Madrid .
In humans, that means the left brain is associated with positive feelings, like love, a sense of attachment, a feeling of safety and calm. It is also associated with physiological markers, like a slow heart rate. At a fundamental level, the right brain specializes in behaviors involving withdrawal and energy expenditure. In humans, these behaviors, like fleeing, are associated with feelings like fear and depression.
Together, these findings demonstrate that human relational memory develops during offline time delays. Furthermore, sleep appears to preferentially facilitate this process by enhancing hierarchical memory binding, thereby allowing superior performance for the more distant inferential judgments, a benefit that may
"The average income difference between a person with an IQ score in the normal range (100) and someone in the top two percent of society (130) is currently between 6,000 and 18,500 dollars per year," it said.Uppdatering 23:40
In an advance online publication in the journal Nature, researchers describe developing a drug designed to be taken orally to treat diseases caused by "nonsense mutations," which cause cells to prematurely stop making a needed protein. The drug, PTC124 is now in early human trials for treatment of nonsense mutations in Duchenne muscular dystrophy and cystic fibrosis.
Police have apparently told Mr Litvinenko's widow Marina they plan to lay murder charges against the suspects — Andrei Lugovoi, Dmitri Kovtun and Vyacheslav Sokolenko.
Richard Muller, one of the UC Berkeley physicists who co-discovered the cycle, said Melott and his colleagues have come up with a plausible galactic explanation for the biodiversity cycle. Muller and Robert Rohde also speculated that our solar system’s movement through the galactic plane was behind the cycle, but the pair could not conceive of any reason why conditions on the north and south side of the galactic plane should differ. “That’s where they succeeded,” Muller said in a telephone interview. “They came up with something we didn’t think of, which puts an asymmetry in. I’m delighted they did that and I congratulate them.”
Om man ska tro de uppgifter som står i t ex Times Online så förbereder Al-Qaeda en attack mot Storbritannien och andra ställen, med hjälp av en s k dirty bomb, dvs en konventionell bomb som använder radioaktivt material för att förorena stora områden, och skada många människor.
Om detta lyckas, kommer vanmakten och frustrationen att vara stor i Europa, och jag tror inte man kommer att reagera annorlunda än vad USA gjorde efter 11 september. Man kommer att vidta åtgärder - ökade befogenheter för polis, mer övervakning - för att försöka hindra ännu en attack, men jag tror inte opinionen kommer att nöja sig med det. Detta innebär att man kommer att vilja flytta frontlinjen från Europa till de fästen i mellanöstern som man tror har gjort attacken möjlig. Iran spelar ett väldigt högt spel här, vare sig de objektivt kommer att vara inblandade eller inte.
The researchers showed that one of the compounds, 6-thioguanosine, blocked the spores' germination inside mammalian cells -- thus blocking anthrax infection, the journal said Friday in a release. The scientists are planning to test 6-thioguanosine in mice infected with the anthrax bacterium.
from her superhero past. Here is a woman who began her life with a clear, noble purpose, only to have it taken away by the co