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SATURDAY, Nov. 9 (HealthDay News) -- Some first responders who toiled at the World Trade Center site after the Sept. 11, 2001, attacks are now showing signs of early kidney damage, a preliminary study finds.

Experts said it's the first time evidence of kidney trouble has been found in 9/11 first responders, and more study is needed before kidney disease is added to the list of health problems connected to the disaster.

The study included 183 first responders who have been monitored in a World Trade Center health program at the Mount Sinai School of Medicine in New York. Doctors found that workers who spent the most time in the toxic plume at the disaster site showed relatively high levels of a protein called albumin in their urine.

Those urine tests were taken last year -- 11 years after the attacks, said study author Dr. Mary Ann McLaughlin.

Her team found that workers with the highest exposure to polluted air from the disaster site showed significantly higher albumin levels than those who spent the least time at Ground Zero.

"It's very high exposure that seemed important," said McLaughlin, who is scheduled to present her findings Saturday at the American Society of Nephrology annual meeting in Atlanta. Research presented at medical meetings is considered preliminary until published in a peer-reviewed journal.

In this study, "high exposure" meant responders who had been at the World Trade Center on 9/11, and then stayed for recovery operations for at least 90 days, McLaughlin said.

The air around the disaster site was filled with smoke, dust, glass fibers and heavy metals, and it's possible that inhaled debris -- plus the immune system's inflammatory response to it -- caused damage to the lining of the arteries in some workers, McLaughlin said.

And that, in turn, could affect kidney function. When the kidneys aren't working properly, albumin can leak into the urine -- in what doctors call albuminuria. Persistent albuminuria signals some degree of kidney disease.

A kidney disease expert agreed that inflammation triggered by air pollutants could be involved in the new findings, but it's not a definitive discovery.

"Additional research would be needed to try to tease apart the impact of [air pollution] on albuminuria," said Dr. Kerri Cavanaugh, of the Vanderbilt University Medical Center in Nashville, Tenn.

Cavanaugh said it's too early to give any general recommendations based on the study. "It generates a hypothesis about particulate matter and the potential association with kidney disease," she said.

Other health consequences of 9/11 have been more firmly established. Soon after the attacks, some first responders and others near Ground Zero started showing the type of health effects you would expect in the short term, McLaughlin said. Those included asthma and other respiratory problems, and mental health conditions such as post-traumatic stress disorder.

But other health effects could take years to manifest themselves. Just last year, certain cancers were added to the list of conditions covered by the 9/11 Victim Compensation Fund.

McLaughlin said these latest findings suggest there's a "linear relationship" between exposure to the World Trade Center site and early signs of kidney dysfunction. What that could ultimately mean for first responders' health is not yet clear. But a urine test to detect albumin is simple and inexpensive, McLaughlin said.

"First responders should seek care as directed by their providers," Cavanaugh said.

In general, she said, albuminuria screening is not recommended for healthy adults. But it is suggested for people with established risk factors for kidney dysfunction, including diabetes, high blood pressure and a family history of kidney disease.

Mount Sinai is home to one of the so-called clinical centers of excellence that were set up to monitor the health of first responders, recovery workers and residents affected by the World Trade Center attacks. The programs are also collecting data to try to get a handle on the long-range health risks.

"Even though 9/11 was over a decade ago," McLaughlin said, "some of the effects could be lifelong."

More information

The National Kidney Foundation has more on albuminuria.

SOURCES: Mary Ann McLaughlin, M.D., Mount Sinai University School of Medicine, New York City; Kerri Cavanaugh, M.D., assistant professor, medicine, Vanderbilt University Medical Center, Nashville, Tenn.; Nov. 9, 2013, presentation, American Society of Nephrology annual meeting, Atlanta

lundi 11 novembre 2013 07:39

In the earthquake damage to the city construction of new buildings

The government will appoint a crown manager next week to take control of Christchurch City Council management structures after International Accreditation New Zealand stripped the council of its accreditation to issue building consents.

Insurance organiser Riskpool will also meet council representatives next week to discuss the ramifications of its decision to stop insurance cover for building consent decisions.

Building and Construction Minister Maurice Williamson is not saying if the situation will delay the rebuilding of Christchurch but says officials and technical experts are evaluating consents that have been issued to work out the size of the problem.

"We don't have a ballpark because we don't know how far it goes back," he told TVNZ's Q&A programme on Sunday.

"I don't think we are talking hundreds of thousands but we are talking a big number," he said.

He could not give a commitment about building safety until officials had looked at every building.

It was very unlikely that buildings were unsafe as most of the consenting issues were technical in nature with "incorrect paperwork rather than it being a structural integrity issues".

"It's a total kick in the guts for Christchurch and they didn't deserve it. They've been through enough."

The government is seeking to restore confidence as quickly as possible.

Building consent work for Christchurch was already being farmed to other councils, he said.

mardi 09 juillet 2013 08:12 , dans Life

Analysis of toy consumption market potential

Although in 2013 we have gone a quarter more, but in an industry analysis and forecasting, toy and gift market potential strength this year is very alarming, this point, can be consumption of toys from the overseas consumer toy strong, rapid growth and China's domestic market speaking of. With the improvement of people's living standard, or is along with the people to the children's toys puzzle and functional further attention, can say, this one makes toys domestic market consumption is quite large hk gift and premium.

In this some just responsible for nurturing the next generation of young parents, their children's toys game memory only the children's toys are in their development process with role. However, today's young parents on children's toys and gifts of the function and importance and the concept of a deeper, toy as a gift (for the children to friends), also can be used as a toy in home furnishing layout is very suitable for decorations.

"Toys are no longer just the children in the hands of adult items, also popular play adult toys, a white-collar people use words, play with toys can add the spice of life, why not!" according to Mr. Zhang said, in such a big demand, toys & gifts purchasing the potential for large is not worth the get excited over a little thing. Speaking of the business, content to below 14, 14 years old the following the crowd toy demand, this is the most need to study to think about the "big cake" hk premium gifts.

It is understood, Europe and the United States and other developed countries of the toy industry is already very mature and very mature, this also means that their toys consumption ability as well as their conceptual cognition of toys, is more advanced than many people in our country, which is we have to try to catch up. Fortunately, our country people do all one can to catch up, although our toys consumption is still not able to daily consumption of the basic necessities of life, but the expectation is that we are moving towards a way forward hk business gift.

No matter is the children's toy consumption, or adult toys consumer groups, decided in the final analysis, adult toys consumption capacity. The economic strength of the adult population and consumption ability certainly admit of no doubt, some specifically for adult physiological, psychological needs of R & D and production introduction of adult toys has become the hot toys & gifts company recommended, this can let people see the potential unlimited business machine is very clear hk gift premium.

mardi 07 mai 2013 09:28

Effect of Boston bomber

The veil has been lifted from the mysterious "Misha," the man Boston Marathon bombing suspect Tamerlan Tsarnaev's family claims had a big part to play in radicalizing him.

Despite days of speculation — which involved rumors about Misha being a red-bearded Armenian Muslim-turned-FBI informant — nothing concrete surfaced until The New York Review of Books reported Sunday that they had found him executive gift.

In an interview with NYR's Christian Caryl, Misha, whose real name is reportedly Mikhail Allakhverdov, confirmed knowing Tamerlan Tsarnaev but denied having any role in the Boston bombings.

fbi investigates 2 ri homes with connections to bombers

6 hr ago 1:13 Views: 565
"I wasn't his teacher. If I had been his teacher, I would have made sure he never did anything like this," Allakhverdov said.

U.S. officials said Saturday that there was nothing to indicate that Allakhverdov had anything to do with the Boston bombings.

Tamerlan's uncle Ruslan Tsarni told CNN that Tamerlan had been brainwashed: "It started in 2009. And it started right there, in Cambridge … This person just took his brain. He just brainwashed him completely gift premium."

Tsarni's accusations turned the spotlight on Misha for a nation still trying to figure out the motive behind the recent tragedy. Many people tried to search for "an Islamic Svengali" with maliciously persuasive powers, and the FBI said that they were in touch with Misha, although nobody really knew who he was.

Neither The Associated Press nor other news organizations have confirmed that Allakhverdov is indeed the man called "Misha."

The Associated Press reported Sunday that Tamerlan's mother, Zubeidat Tsarnaeva, said that she and Tamerlan were both influenced deeply to follow the Muslim faith by Misha, who, according to NYR, converted to Islam.

Caryl writes that he found Allakhverdov in his Rhode Island home, where he lives with his parents. He describes him of being of medium height with a "thin, reddish-blond beard."

Allakhverdov told Caryl that he had met Tamerlan in Boston, where he lived three years ago, but hadn't been in touch with him since then.

He did not give any details about how he knew Tamerlan or his family, but said that he had never met the family. He also said that he had cooperated with the FBI's investigation.

"I gave them my computer and my phone and everything I wanted to show I haven't done anything. And they said they are about to return them to me. And the agents who talked told me they are about to close my case."

What remains unclear is why Tamerlan's family would accuse Misha so strongly gift and premium.

According to Caryl, Allakhverdov's parents seem like "typical former-Soviet émigrés who had embraced middle class life in the United States," he writes. "The family was welcoming to me but very nervous."

mardi 30 avril 2013 06:43

The market a new generation of power semiconductor display dawn

At present, the market for inverter converter power conversion power semiconductor device on the use of silicon carbide ( SiC ), and gallium nitride ( GaN ) is a new generation product of concern teco dc motor speed control.

The Japanese Showa denko company announced on August 30, 2012, has been used for power semiconductor element 4 inch silicon carbide epitaxial wafer production capacity increased to 2.5 times the previous.

Market growth to dawn

Miniaturized in the realization of inverter and power conversion device of the power semiconductor element using silicon carbide and reduce the loss of effective components, so the company is actively promoting the product development. Showa denko said the increase in production capacity, the reason is that, " in the field of application of low voltage and low current home appliance products, already began to produce the actual demand, but also in the railway vehicle and industrial equipment such as high voltage, high current field, development projects are also on the rise ". Silicon carbide components compared with silicon element, as competitors prices higher, which has become the bottleneck to achieve universal, but if the quality of epitaxial wafer to increase supply, is expected to reduce the cost of components gear motor.

Through the epitaxial layer formed on a silicon carbide wafer has homogeneous crystalline defects on, can improve this property and the product manufacturing components rate.

In fact, promote the development of silicon carbide components business activities are becoming increasingly active. Open up the market most Rohm positive in 2012 March held a press briefing, announced the prospect of silicon carbide related business. The company said, although the 2010 sales of 1700000000 yen, but in 2011 reached 3500000000 yen, the multiplication, is expected in 2012 will increase to 5000000000 yen. And declared 2014 to achieve sales of 16000000000 yen.

Development of silicon carbide components business enterprise and Mitsubishi Motor Company and Fuji Electric Company and other enterprises, but the enterprises in the sales forecast are cautious, are not specific announced years after the goal. Released from Rom's related information can be seen, silicon carbide components from the development stage of enterprise users steadily into the actual demand stage.

Application scope gradually expand

Inverter is the representative application of power semiconductor. This is a DC power into AC power conversion device, if used for AC motor drive, can control speed according to the load, thereby greatly to achieve energy-saving. In Japan, already applied in air-conditioning and washing machine etc.. In the future, if can further be used in fields such as industrial motor, on the whole, is expected to achieve the energy saving effect is very big. This is because, Japan's current electricity consumption of about 60% in the motor, the inverter utilization rate is only about 10% 48 volt dc motor products.

Allegedly the utilization rate is only 10%.

Not limited to drive motor, inverter and converter ( convert AC to DC ) power conversion device is widely used in various applications. In a large number of the use of solar panels and stationary battery of smart grid in areas such as DC device, in particular need to use these devices in the future. But also in improving the charging battery DC voltage, the hybrid electric vehicle drive motor ( HEV ) and pure electric vehicles ( EV ), is a key device. Extensive use of DC equipment data centers, demand for small and efficient power conversion device is very big.

Power converter is used in many fields, can raise the utilization efficiency of the motor and the power supply circuit of energy.

The development of power semiconductor market has great potential

Come have a look of power conversion device used by ordinary silicon power semiconductor market. In 2010 the scale of global semiconductor market is about 25 trillion yen ( equivalent to US $1, 80 yen the same below), which is used as a power MOSFET power semiconductor represents about 500000000000 yen, insulated gate bipolar transistor ( IGBT ) for around 250000000000 yen. Although the amount of view, relatively small size, but the growth potential of the larger, survey firm IHSiSuppliJapan predicts, to 2015, power MOSFET will increase to about 1 trillion yen, insulated gate bipolar transistor will reach 400000000000 yen, taken together, may be able to achieve double in 5 years.

Background and reasons of this trend of development, is not only the developed countries energy saving heat, and emerging market countries rapid economic development. Power conversion device is expected to appear in every field of society, becoming a " necessities ", with the development of emerging market countries more population modernization, will have a large demand.

Design and manufacturing technology of silicon semiconductor have been mature, can carry out mass production at low cost. But on the other hand, because the material properties, the properties of the existence of the limit, cannot be used for certain purposes. SiC and Gan will be through the performance limit breakthrough silicon to open up new markets.

Silicon carbide is mainly suitable for high power, low power, gallium nitride is suitable for conversion speed field. And, because of the low loss and small, so also can replace the existing silicon element brushless motor manufacturer.

New technology and new products come out one after another

The band gap is the basic characteristic of the semiconductor, the band gap of silicon carbide and silicon nitride ratio is about 3 times, a number of electric field is high insulation failure. Can work under high temperature, current flowing through the resistance ( resistance ) is small, is also capable of producing energy loss of smaller components.

In Japan, the comprehensive research of Kyoto University and the Industrial Technology Institute started very early attention to the new material, has been to promote the study of basic research and components. And, between the official research institutions and private enterprises have also implemented jointly a number of research projects. In 2010, the Ministry of economy, the cabinet office, Nissan research and new energy and industrial technology development organization, launched a new research project to pay more attention to practical, there are many private enterprises to participate in the. Because of these projects involve wafer fabrication technology, component technology, system technology and production technology and other aspects, so the economic industry province was established in 2010 to promote the project cooperation organization " SiC alliance ", is to improve operational efficiency.

lundi 25 février 2013 07:15 , dans Electric machinery


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