You’re still retrievable.”

Safar’s work began to change our perceptions of death – blurring the point that is meant to mark the end of our lives. “We’ve all been brought up to think death is an absolute moment – when you die you can’t come back,” says Sam Parnia, at the State University of New York in Stony Brook. “It used to be correct, but now with the basic discovery of CPR we’ve come to understand that the cells inside your body don’t become irreversibly ‘dead’ for hours after you’ve ‘died’… Even after you’ve become a cadaver, you’re still retrievable.”

Blurred line

Tisherman now thinks of death as the (admittedly subjective) point at which doctors give up resuscitation as a lost cause – but even then, some people can still make a remarkable comeback. Last December, a paper in the journal Resuscitation caused a stir by suggesting that 50% of surveyed emergency doctors have witnessed ‘Lazarus phenomena’, in which a patient’s heart has begun beating again by itself, after doctors had given up hope.

Kick-starting the heart is only one half of the doctor’s battle, however; the lack of oxygen after a cardiac arrest can cause serious damage to the body’s vital organs, particularly the brain. “Every minute that there’s no oxygen to those organs, they start dying,” says Tisherman. His former mentor, Safar, came up with a solution to this problem too, with ‘therapeutic hypothermia’, a procedure that involves cooling the body, typically to around 33C by placing ice packs around the body, for instance. At lower temperatures, cells begin to work in slow motion, reducing their metabolism and the damage that could be caused by oxygen starvation.

I remember one boss who, once in a blue moon.

I remember one boss who, once in a blue moon, would walk around the office; whenever he crept up behind me I was invariably writing a shopping list or was on the phone to my mum.

Such surveillance did not improve my behaviour, though it did increase my sense of injustice. To have been monitored all the time – which would have put the shopping list in the context of otherwise diligent behaviour – would have been a vast improvement.

In most offices a raft of mainly pointless, cumbersome tools are used to assess performance, including “competency matrices”, appraisal interviews and psychometric testing. Together they are so ineffective that according to a delightful piece of research by the University of Catania, companies would be no worse off if they promoted people at random.

So if we are in favour of meritocracies, we should also be in favour of anything that helps us measure merit more accurately.

While the data collected by the new sensors are almost certainly too crude to offer much help now, I see no reason why in time (and probably quite soon) we will not have worked out exactly which behavioural quirks are the key to high (or low) performance, and found a decent, objective way of measuring them.

You could say that monitoring behaviour in offices would kill trust and spontaneity, making robots of us all.

Systemic fungicide basically has the following categories

Fungicide is used for the prevention and cure of plant diseases caused by different kinds of pathogenic microorganism pesticide, generally refers to fungicides. But in the world, is usually as the floorboard of the medicament for the prevention and control of all kinds of pathogenic microorganisms. With the development of fungicide, and distinguish between kill bacteria agent, kill the virus, kinds and algicide, etc. According to the survey, the world is harmful to the plants of pathogenic microorganisms (fungi, bacteria, rickettsia, mycoplasma, viruses, algae, etc.) there are more than 80000 kinds. Plant diseases caused huge losses to agriculture, the world’s crops reduce output of about 5 trillion kg per year on average. Has repeatedly occurred in the history of the severe famine caused by some kind of plant disease epidemic, even a large number of people starve to death the evil. Use of bactericide is a economic and effective prevention and control of plant diseases.
The role of fungicide way has two kinds: one is the protective fungicide, the other is the systemic fungicide.
First, protective fungicide
Type 1,
Protective fungicide basically has the following categories: sulfur and inorganic sulfur compounds, such as sulfur, suspending agent, solid lime sulfur agent, etc.; Copper agents, mainly bordeaux mixture, copper ammonia mixture, etc.; Organic sulfur compounds, such as TMTD, zineb, generation, ammonium, mancozeb, etc; Phthalic acid and ammonium, such as captan, against bacteria and sterilization Dan Dan, etc.; Antibiotics, such as jinggangmeisu, destroy the blast element, more oxygen and amphotericin, etc.; Other classes, such as leaf blight spirit, bacterial leaf blight net, chlorothalonil, ning heads, etc.
2, action way
In plant body or body direct contact with the pathogen, kill or inhibit pathogenic bacteria, making them unable to enter plant, so as to protect plants from the dangers of pathogenic bacteria. Such fungicide known as protective fungicide, its function has two aspects:
1, contact with pathogens directly kill pathogenic bacteria after spraying, namely “sexual contact antiseptic effect”.
2, sprayed agent on the plant surface, when pathogens falls on a plant in contact with the agent and poison, referred to as the “reasons antiseptic effect”.
Second, systemic fungicide
Type 1,
Systemic fungicide basically has the following categories: benzene and imidazoles, such as benomyl, carbendazim, probenazole, sulfur bacteria spirit and methyl sulfur bacteria spirit, etc. Two formyl amine, such as different bacteria urea, ethylene sclerotium; Organophosphorus, such as rice blast net, net, three different rice blast ethyl phosphonic acid aluminum, etc.; Phenyl amide class, such as armor frost spirit; Sterol biosynthesis inhibitor class, this kind of fungicide including 13 morpholine, ammonia spirit, butyl saite, thioridazine bacteria organism and b bacteria organism, imazalil and mi amide, triazole alcohols and triadimefon, etc., from the point of view of chemical structure, they respectively belonged to morpholine, pyrazole Lin, pyridine, pyrimidine, imidazole, 2, 4 – triazole compounds. Sterol synthesis inhibitors class fungicide with protective and therapeutic effect, has a wide sterilization spectrum.
2, action way
Systemic fungicide used on a certain parts of the object before can be absorbed by crops, and transport to other parts of objects in the body, has the performance of fungicide known as the “systemic fungicide: systemic insecticide. There are two kinds of mode of transmission:
(1) to the top of transduction, namely after the drug is absorbed into plant with transpiration flow at the top of the plant to the parietal lobe, the shoot apex and leaf and leaf margin. At present, a lot of the systemic fungicide category.
Diction is the basic transmission, namely drug absorbed by plants in the phloem after conduction down the transportation of the product of photosynthesis.
The principle of 3, fungicide control of plant diseases
In a nutshell, fungicide is compound of pathogenic microorganisms have poison effect. But the word “sterilization” meaning is not limited to “kill” pathogenic microorganism growth and spore germination two layers of meaning. Can kill pathogenic microorganism bactericide bactericidal effect, can inhibit pathogens spores germination and growth of antiseptic bacteriostasis, both role can achieve the purpose of prevention and cure on agricultural production. Fungicide role in a different way, using methods that vary, but fundamentally, fungicide principle of the prevention and treatment of diseases of three, namely chemical protection, chemical treatment and chemical immunization.

These particles have come a long way.

Scientists already knew that microplastics—polymer beads, fibers, or fragments less than 5 millimeters long—can wind up in the ocean, near coastlines, or in swirling eddies such as the Great Pacific Garbage Patch. But Rachel Obbard, a materials scientist at Dartmouth College, was shocked to find that currents had carried the stuff to the Arctic.

In a study published online this month in Earth’s Future, Obbard and her colleagues argue that, as Arctic ice freezes, it traps floating microplastics—resulting in abundances of hundreds of particles per cubic meter. That’s three orders of magnitude larger than some counts of plastic particles in the Great Pacific Garbage Patch. “It was such a surprise to me to find them in such a remote region,” she says. “These particles have come a long way.”

The potential ecological hazards of microplastics are still unknown. But the ice trap could help solve a mystery: Industrial plastic production has increased markedly in the last half-century, reaching 288 million tonnes in 2012, according to Plastics Europe, an industry association. But ecologists have not been able to account for the final disposition of much of it. The paper shows that sea ice could be an

important sink—albeit one that is melting, says Kara Lavender Law, an oceanographer at the Sea Education Association in Woods Hole, Massachusetts, who was not part of the study. “There could be freely floating plastics, in short order.” The authors estimate that, under current melting trends, more than 1 trillion pieces of plastic could be released in the next decade.

Obbard and her colleagues based their counts on four ice cores gathered during Arctic expeditions in 2005 and 2010. The researchers melted parts of the cores, filtered the water, and put the sediments under a microscope, selecting particles that stood out because of their shape or bright color. The particles’ chemistry was then determined by an infrared spectrometer. Most prevalent among the particles was rayon (54%), technically not a synthetic polymer because it is derived from natural cellulose. The researchers also found polyester (21%), nylon (16%), polypropylene (3%), and 2% each of polystyrene, acrylic, and polyethylene. Co-author Richard Thompson, a marine biologist at the University of Plymouth in the United Kingdom, says it’s difficult to pinpoint the source of these materials. Rayon, for instance, can be found in clothing, cigarette filters, and diapers.

Abundances are likely to grow as scientists learn to sift more finely. Law points out that microplastic estimates for the Great Pacific Garbage Patch are based on phytoplankton nets that catch only particles bigger than 333 microns. Obbard, who used a much smaller 0.22 micron filter, says she still probably missed many particles herself; searching by eye, she easily could have missed brownish or clear plastic particles that were masquerading as sand grains.

What is the consequence of all this plastic floating around? At this point, it is hard to say. Plastic is chemically inert. But the plastic can absorb organic pollutants in high concentrations, says Mark Browne, an ecologist at the University of California, Santa Barbara. Browne has performed laboratory experiments with marine organisms showing not only how the microplastics can be retained in tissues, but also how pollutants might be released upon ingestion. “We’re starting to worry a bit more,” he says.

Such a high reliability of the materials.

As the electronic equipment function is more and more strong, the body is more and more small, heat dissipation problems have become more and more complicated. Engineers have been looking for a better thermal interface materials, effective heat dissipation to help electronic equipment. Amorphous polymer material is a poor conductor of heat, because their disorder limits the heat conduction transfer of phonons. In the polymer can be used to create neat crystal structure to improve its thermal conductivity, but the structure is formed by fiber drawing process, can lead to brittle materials.
George woodruff school of mechanical engineering at Georgia tech, said barak figure DE carat, assistant professor of new thermal interface material is made by using conjugated polymer poly (thiophene and its neat nanofiber arrays are not only good for transfer of phonon, and avoid the brittleness of materials. New materials in the thermal conductivity at room temperature is 4.4 w/m, kelvin, and has set up 80 times in 200 ℃ temperature thermal cycle test, performance remained stable; Between the chip and heat sink, by contrast, commonly used solder thermal interface materials, work in the process of the high temperature of reflow may become unreliable.
Nanometer fiber array structure is made by multiple steps: researchers first electrolyte containing a single coated on a tiny pore alumina template, and then to the template applied potential, every pore of electrode will attract monomer, began to form hollow nanofibers. Fibre length and wall thickness by applying the electrical flow and time control, the diameter of the fiber is determined by the size of the pore, ranging from 18 nm to 300 nm. The thickness of the traditional thermal interface materials about 50 microns to 75 microns, and this way to get new material thickness can be thin to 3 microns.
Carat, said the technology still needs further improvement, but he believes that the future can expand production and commercialization. “Such a high reliability of the materials for solving the problem of heat dissipation is very attractive. The material may eventually change the way we design electronic system.”

A type of learning.

For the most part, the brain stops producing new neurons—a process called neurogenesis—soon after birth. In humans, mice, and some other species, however, neurogenesis continues throughout life in a brain region that encodes memories about space and events, called the dentate gyrus of the hippocampus. In adult humans, the dentate gyrus produces roughly 700 new brain cells each day.

Studies in mice have shown that suppressing neurogenesis can impair a type of learning called pattern separation, which allows us to distinguish between two similar but slightly different circumstances. One example is remembering where you parked the car from 1 day to the next, explains René Hen, a neuroscientist at Columbia University who was not involved in the new study.

Although the precise role of neurogenesis in memory is still controversial, more than a decade of research has demonstrated that boosting neurogenesis with exercise and antidepressants such as Prozac can increase rodents’ ability to learn new information about places and events. A few years ago, however, neuroscientist Paul Frankland of the Hospital for Sick Children in Toronto, Canada, noticed that some of the animals in his experiment actually did worse on certain memory tasks when their neuron birth rates had been ramped up. In particular, they performed poorly on tests that required them to retain details about past events.

The result was “way too interesting to ignore,” Frankland says. Because neurogenesis surges in newborn mice and humans and then tapers to a slow trickle by adulthood, Frankland and colleagues wondered if that explosion of new neurons could help explain the widespread phenomenon of infantile amnesia—the inability of adults to remember events that occurred before they were 2 to 4 years old. Some theoretical models suggested that new neurons destabilize memories already stored in the hippocampus by degrading the information there, but the idea had never been explored in live animals.

The production of the iPhone 5 models .

Apple said on user support website, in March 2013, the production of the iPhone 5 models may be affected by the problem of switch. Problems of the switch or indirect job loss function. Apple did not disclose how many iPhone 5 influenced by this problem, the user can enter the serial number on apple website query whether mobile phone needs to be repaired, or the phone will be sent to or mail it to the apple store for repair.
Apple spokeswoman Theresa Brewer (Teresa Brewer) said on Friday: “apple will be the problems and have a regular serial number of the iPhone 5 models free replacement switch.”
Apple rarely large-scale maintenance measures for its product, the fault is also very rare. Apple proud of hardware engineering and design, especially its flagship iPhone, apple for more than half of the revenue. Apple from the end of 2013 to start selling the iPhone 5 s and the iPhone 5 c. Driven by markets such as China, Japan, the iPhone in the first quarter this year sales of 43.7 million units, more than expected.
Apple also encounter “antenna” in 2010. Apple acknowledged that the iPhone 4 in a handheld manner may signal leakage problems. Apple offers free mobile then correct the problem.

The monkeys’ systematic errors .

To ensure that the monkeys hadn’t simply memorized every possible combination of symbols and associated a value with the combination—this wouldn’t be true addition—Livingstone’s team next taught the animals an entirely new set of symbols —Tetris-like blocks rather than letters and numbers. With the new symbols, the monkeys were again able to add—this time calculating the value of combinations they’d never seen before and confirming the ability to do basic addition, the team reports online today in the Proceedings of the National Academy of Sciences.

But when Livingstone and colleagues started analyzing the data in more detail—they had the results of hundreds of tests per day for months on end—they realized that the monkeys weren’t 100% accurate. They tended to underestimate a sum compared with a single symbol when the two were close in value—sometimes choosing, for example, a 13 over the sum of eight and six. The underestimation was systematic—when adding two numbers, the monkeys always paid attention to the larger of the two, and then added only a fraction of the smaller number to it.

The monkeys’ systematic errors argue against one theory of how the mammalian brain processes numbers. “What they’re doing is paying more attention to the big number than the little one,” Livingstone explains. But the altered values weren’t tied intrinsically to the symbols. If eight was the larger of two numbers in a sum, then its full value was considered, but if it was being added to a larger number, its value was diminished. One prevailing theory on number representation—dubbed logarithmic encoding—had proposed that the brain always underestimates the value of larger numbers in a systematic and unchangeable way. In such a case, the value of eight wouldn’t vary based on the situation as Livingstone observed.

“They’ve shown that it’s very unlikely that there’s some kind of logarithmic encoding of numbers,” says psychologist David Burr of the University of Florence in Italy, who was not involved in the new work. Further research on how humans and monkeys estimate the value of numbers, and how this plays a role in the brain’s ability to add two values, could shed light on dyscalculia—a human learning disability specific to mathematics. Children with dyscalculia often have trouble not only adding numbers, but quickly guessing how many objects are in a group. Together with the new results on rhesus macaques, this suggests that estimating values is key to the ability to add.

“Being able to estimate obviously has survival value;

New type 041 submarine has inclined bridge.

In china ,New type 041 submarine has inclined bridge, similar to the latest German submarine design. According to reports, this new type of tilt the base of the bridge may additional installed a high-frequency sonar, the same as the other similar design. Compared with previous sub models, the new submarine body shape may be slightly longer.
According to unconfirmed sources in China, according to new submarines displacement is about 3500 tons, and the type 041 after several submarine is about 3000 tons. This may indicate that the modified submarines equipped with more weapons. Jane’s warships yearbook data shows that the people’s liberation army navy has several type 041 submarine is equipped with the eagle hit – 2 anti-ship missiles, fish and fish – 3-4 passive homing torpedo active/passive homing torpedo, and could carry “fish” – 6 wake homing torpedo. Basic export-oriented submarine S20 debut in 2013, displacement of about 2300 tons.
It is believed that since 2004, built the people’s liberation army navy, a total of 12 041 “yuan” class of conventional submarine. The pentagon, however, in its May 2013 submitted to congress the annual report of China’s military, said the number is likely to reach 20.
New picture of exposure also shows that China is building a new nearly full-size model of large surface ships. Close to the model built from 2008 to 2009 in liaoning ship nearly full-size replica. Similar to aircraft carrier replica, this new model could simulate radar equipment and other offensive and defensive electronic system. Reflect on the model the system, convenient design improvement, also in the future the operator training.

Modern aircraft with its intelligence and automation.

Maybe a lot of people think, modern aircraft with its intelligence and automation, can realize automatic flight. This is obviously wrong. In some cases, the automation can reduce the pilot’s workload. But in other cases, when the automation system is not suitable, use it instead of increased workload. What level of pilots should know how to reasonably use the automation level. Sully says he is not a reverse technology, but he thinks that advanced technology is no substitute for experience, also does not take the place of skills and judgment.
Computer can only perform operations under the direction of a person, no matter is the pilot with hands or with the help of the technology of flight, fundamentally still rely on their brains to fly, they to the actual situation of external environment, such as aircraft, maintain accurate “situational awareness”, to use at any time for many years of experience, knowledge and technology for rapid, weigh everything they had at their disposal and their unknown things.
In the process of flight, the importance for the pilot, he is a manager. As a manager in the machine to run automatically, is always the one to decide when to use automated equipment to reduce the workload, give aircraft orders by computer instead of the pilot’s hands.
In addition, in some cases, it may actually increase with automation equipment pilot’s workload. For example, the local surface replacement of runway of instructions, if it is a manual operation, the driver needs to adjust the new runway in navigation receiver navigation frequency is ok; In today’s high degree of automation on the plane, but need to spend more time on the computer to choose a new runway, confirm new navigation frequency and track data, and check the map control data, in order to ensure accurate operation. As a result, tend to be on the computer by 10 multiple keys to complete the operation.