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William B

Medical uses expand for human tissue from 3-D printers | The Portland Press Herald / Ma... - 0 views

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    "SAN FRANCISCO - 3-D printing, used to construct everything from art to toys to spare parts for the space station, may one day produce human organs at a hospital near you. click image to enlarge A 3-D printed prosthetic nose and ear are displayed at an industry show in London in November. The technology may eventually help reduce organ shortages. Bloomberg News photo by Chris Ratcliffe Select images available for purchase in the Maine Today Photo Store The 20-year-old technology uses liquid materials that become hard as they print out three-dimensional objects in layers, based on a digital model. Current medical uses are in dentistry, for hard-material crowns, caps and bridges, as well as prosthetics. Last year, a 3-D printer was used to create a structure from moldable polymer that replaced more than 75 percent of a patient's skull. Now, Organovo Holdings Inc. is using 3-D printers to create living tissue that may one day look and act like a human liver, able to cleanse the body of toxins. Drugmakers and cosmetic companies already plan to use 3-D printed human tissue to test new products. Eventually, the technology may help reduce organ shortages and cut transplant rejections as patients receive new organs constructed from their own cells. "3-D printing is like a new tool set," said Organovo Chief Executive Officer Keith Murphy. "You can make a living tissue you can grow outside the body. That's the core of our technology. How can you be smart about doing that?" Organovo already is preparing to sell strips of liver tissue to drugmakers this year to be used to test toxicity of potential treatments, Murphy said in a telephone interview. The San Diego-based company's five- and 10-year goals are first to use a patient's own cells to print tissue strips that can be used to patch failing organs, and finally to be able to create entire new organs. The first 3-D printer was produced in 1992. Since then, a variety of materials have been used as the t
Callie S

How Technology Has Changed Our Lives in the Last Five Years - The Center of Technology - 0 views

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    "Over the last five years, technology has been rapidly changing and expanding in every field imaginable. Smart phones are now capable of acting as standalone computer devices that can take pictures, search the Internet, send emails and text messages and yes, they even make phone calls. While it might seem that the technology of today has reached its limits, it is still actually spreading its proverbial wings. Only twenty or so years ago, personal computers were becoming small enough and affordable enough for families to buy them for home use. Since then, the world of technology has shown no signs of slowing down and practically every device available today is somehow tied to computer technology. It seems hard these days to fathom the original size of computers and how small they have become in the last ten years, but within the last five years they have become even smaller and somehow more powerful and faster than ever before! The Internet allows people to connect with family, friends, and work colleagues from across the globe in the push of a button. Communication options have literally exploded in the instant avenues of text and video based chat as well as the near instantaneous method of email. Gone are the days where one had to post a letter and wait a week or more for a response and long distance phone calls are unnecessary for anyone with a computer, a webcam, and a speedy Internet connection. Automobiles are now being manufactured with standard GPS and emergency call features for the convenience and safety of drivers and their passengers, making the days of carrying a map completely unnecessary and improving the peace of mind of anyone who must travel the roads alone or at night. Computerized cars are now potentially at risk in much the same fashion as a personal computer as a moderately skilled hacker can theoretically take over basic functions of a vehicle - including its engine. Yes, technological advancement has changed our lives completely, and not al
William C

Nanotechnology Delivers Microcoatings | EMDT - European Medical Device Technology - 0 views

  • In the field of medical device development there are a number of factors generally recognised as being important for success. Among these are the biocompatibility, sterility, reliability and adaptability of materials to their surroundings. Without a suitable approach to these issues, the majority of medical devices will not be as successful as they could be. Biocompatibility of materials, in particular, is a critical factor in the development and application of permanent and temporary implants and other devices such as catheters and tubes that are to be used in and around the body. Coating technology is the obvious and ideal solution for separating the bulk properties of a material or device from direct interaction with its surroundings. The independent modification of surface and bulk properties widens the range of features that can be incorporated into products. Bulk properties are responsible for characteristics such as mechanical strength. A suitable coating will enhance the interaction of the device with its surroundings. For example, it will provide drug-elusion (stents), anti-fouling and antibacterial properties, and a hydrophobic self-cleaning surface, referred to as lotus coating.1 The lotus effect in material science is the observed self-cleaning property found with lotus plants. A coating with this effect will make surfaces self-cleaning and will decrease the need for active cleaning of the subsequent surface; it may even enhance the sterility of surfaces. Recently there have been some interesting developments in materials and coatings based on organic and inorganic components, which are responsible for current state-of-the-art devices. Examples include coatings for stents that provide multiple therapeutic effects in thinner layers and coatings with better adhesion to device surfaces. The future holds the promise of even greater functionality for medical coatings.
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    "In the field of medical device development there are a number of factors generally recognised as being important for success. Among these are the biocompatibility, sterility, reliability and adaptability of materials to their surroundings. Without a suitable approach to these issues, the majority of medical devices will not be as successful as they could be. Biocompatibility of materials, in particular, is a critical factor in the development and application of permanent and temporary implants and other devices such as catheters and tubes that are to be used in and around the body. Coating technology is the obvious and ideal solution for separating the bulk properties of a material or device from direct interaction with its surroundings. The independent modification of surface and bulk properties widens the range of features that can be incorporated into products. Bulk properties are responsible for characteristics such as mechanical strength. A suitable coating will enhance the interaction of the device with its surroundings. For example, it will provide drug-elusion (stents), anti-fouling and antibacterial properties, and a hydrophobic self-cleaning surface, referred to as lotus coating.1 The lotus effect in material science is the observed self-cleaning property found with lotus plants. A coating with this effect will make surfaces self-cleaning and will decrease the need for active cleaning of the subsequent surface; it may even enhance the sterility of surfaces. Recently there have been some interesting developments in materials and coatings based on organic and inorganic components, which are responsible for current state-of-the-art devices. Examples include coatings for stents that provide multiple therapeutic effects in thinner layers and coatings with better adhesion to device surfaces. The future holds the promise of even greater functionality for medical coatings."
William C

Nanotechnology and Medicine / Nanotechnology Medical Applications - 0 views

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    This page gave a good amount on how nanotechnology can change the future of medicine, from taking pills to cancer. It also talks about nerve regeneration and how that is in the near future with nanotechnology.
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    "Nanotechnology is already being used in products in its passive form, such as cosmetics and sunscreens,"
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    "Nanotechnology medical developments over the coming years will have a wide variety of uses and could potentially save a great number of lives. Nanotechnology is already moving from being used in passive structures to active structures, through more targeted drug therapies or "smart drugs." These new drug therapies have already been shown to cause fewer side effects and be more effective than traditional therapies. In the future, nanotechnology will also aid in the formation of molecular systems that may be strikingly similar to living systems. These molecular structures could be the basis for the regeneration or replacement of body parts that are currently lost to infection, accident, or disease. These predictions for the future have great significance not only in encouraging nanotechnology research and development but also in determining a means of oversight. The number of products approaching the FDA approval and review process is likely to grow as time moves forward and as new nanotechnology medical applications are developed."
Callie S

Planetary phase of civilization - Wikipedia, the free encyclopedia - 1 views

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    Michio Kaku says in his book that all technological revolutions are leading to the creation of a planetary civilization. "The planetary phase of civilization is a concept defined by the Global Scenario Group (GSG), an environmental organization that specializes in scenario analysis and forecasting. Proponents of the planetary phase of Civilization State that it refers to a current historical transition from a world of capitalist states and consumerist societies to a world of increased global connectivity with new global institutions (like the United Nations and the World Trade Organization), new information technologies, environmental change in the biosphere, economic globalization, and shifts in culture and consciousness. Although the concept is hotly debated in some circles, most reputable scientists give little credence to the theory and assert that current global economic interconnectedness is a function of advanced technology rather than the emergence of anything new in cultural or sociological terms."
Savana R

Science and technology for wealth and hea... [Glob Public Health. 2007] - PubMed - NCBI - 0 views

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    "It is now widely accepted that the developing world needs to invest in science and technology or risk falling behind as the technology gap between the North and South widens. However, these investments must be balanced by continued investment in basic population-wide services, such as healthcare and water supply and sanitation. Achieving this balance is a matter of ongoing debate in policy circles, and leaders and policy-makers in developing countries often have to make difficult decisions that pit investment in new technologies and capacity-building in science and technology against basic population-wide services such as healthcare and water supply and sanitation." This is about how technology and science is used for wealth.
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    Getting some resources off of a government website was a good find and should provide some viable information to use. It will also help us connect with how science and technology is related to wealth.
Callie S

Space colonization - Wikipedia, the free encyclopedia - 0 views

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    Kaku talks about space colonization in the future. "Space colonization (also called space settlement, or extraterrestrial colonization) is permanent human habitation outside of Earth. Many arguments have been made for space colonization. A common one is ensuring the survival of human civilization and Earth's biosphere from disasters such as asteroid impact or global nuclear war. Another is helping to provide unlimited space-based solar power and other resources to let all human beings on Earth enjoy developed-world lifestyles with far less environmental damage, and eventually providing a High Frontier where any number of people may settle and thrive. After its successful Apollo project moon landings, the US NASA sponsored the first formal engineering studies of a space colony concept: Princeton professor Gerard O'Neill and colleagues' proposals to build space colonies and Solar Power Satellites (SPS) from lunar materials.[1][2] These proposals are striking for their boldness, level of detail and technical rigor. The thickness of metal beams needed to contain the colony's atmosphere and withstand rotation for artificial gravity was engineered. Chemical reactions to smelt them out of Moon rocks were worked out (by a young K. Eric Drexler, who later became famous as the founder of Nanotechnology).[3] The Moon rocks would be launched to the desired orbital location cheaply using O'Neill's electromagnetic mass driver. Modifying standard 1970s industrial productivity figures as needed (work in space suits would be slower; moving heavy objects in weightlessness easier than in factories on Earth), they estimated that the 10,000-person workforce housed in the first Island One colony could produce one giant SPS-capable of supplying 5% of total American electricity demand-each year. Yet the project timeline didn't call for producing the first commercial SPS until Year 22, and the huge investment-totaling almost $200 billion in 1975 dollars-wouldn't be fully repaid unt
Nicholas C

History of artificial intelligence - Wikipedia, the free encyclopedia - 0 views

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    AI current progression "Progress in AI has continued, despite the rise and fall of its reputation in the eyes of government bureaucrats and venture capitalists. Problems that had begun to seem impossible in 1970 have been solved and the solutions are now used in successful commercial products. However, no machine has been built with a human level of intelligence, contrary to the optimistic predictions of the first generation of AI researchers. "We can only see a short distance ahead," admitted Alan Turing, in a famous 1950 paper that catalyzed the modern search for machines that think. "But," he added, "we can see much that must be done."[3]"
Palmer C

Wind Energy Pros - 0 views

  • Cons of Wind Energy Wind is highly variable. Wind speed varies by numerous factors, including weather, location and season, so not all places are appropriate for wind energy. At Inn Serendipity, we rarely overproduce electricity during the summer months. Equipment requires a sizeable upfront investment, depending on the size of system selected. To meet the needs of a modest hobby farm, like ours (after energy conservation and efficiency efforts have been exhausted), a 10 kW system that costs $40,000 to $70,000 would be needed to become a net producer of electricity on an annual basis. Evaluating projected wind-system output is difficult due to variability of turbine design and production conditions. “Wind turbines are not created equally,” Hippensteel says. “Some require considerably more maintenance and service than others.” Living with a renewable energy system demands a more energy-mindful way of living. After any big storm, we check our inverters in much the same way that our farmer neighbors check on their animals. State or municipal zoning laws may result in expensive hearings or possibly prevent you from erecting a tower of sufficient height. NIMBYism: Some neighbors may voice objections to the sight or sound of a swishing turbine. While possible harm may be done to birds, research studies, such as one by the National Wind Coordinating Committee, have found that collisions with windows in buildings and vehicles, capture by outdoor cats, as well as poisoning due to chemicals cause far more avian fatalities than encounters with residential wind systems. Depending on location, securing capable technicians or service workers for possible repair or maintenance can add significant costs to owning a system.
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    "Pros of Wind Energy Wind is renewable, freely available and tax-free. Farm businesses may even be eligible to receive a wind-production tax credit. No pollution or waste is generated by the system's operation. Depending on the wind turbine selected, the equipment can be low-maintenance. In general, the more complex the system and the moving parts, the more likely repairs or maintenance will be needed. (Note: After five years, our 10 kW Bergey's generator and inverter required no special repair.) A growing number of utility companies offer simple net metering contracts. (More than 40 states have net metering according to the Database of State Incentives for Renewables and Efficiency.) Under net metering, a wind energy system owner would receive credit for at least a portion of the electricity they generate. There are numerous statewide wind-energy financial incentives, according to Database of State Incentives for Renewables and Efficiency. Numerous national manufacturers of wind turbines have proven reliability track records, including Bergey, Proven, Abundant Renewable Energy, Wind Turbine Industries Corp., and Southwest Windpower, according to John Hippensteel, and engineer with Lake Michigan Wind and Sun, Ltd. Land within the acre or two needed for a residential wind turbine can still be used for pasture, gardens or other agricultural purposes. In our experience-as as noted by the American Wind Energy Association, the Midwest Renewable Energy Association and others-as of 2009, wind is the most cost-effective source of renewable energy, especially when compared to solar electric (photovoltaic) systems. Depending on the system and electricity rates, which continue to rise, your investment might break even in about 17 years."
Micah K

HowStuffWorks "How Nanotechnology Works" - 0 views

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    A nanometer is one billionth of a meter. this means that when nanomites they will be so small that we wont even e able to see them through a microscope. "In order to understand the unusual world of nanotechnology, we need to get an idea of the units of measure involved. A centimeter is one-hundredth of a meter, a millimeter is one-thousandth of a meter, and a micrometer is one-millionth of a meter, but all of these are still huge compared to the nanoscale. A nanometer (nm) is one-billionth of a meter, smaller than the wavelength of visible light and a hundred-thousandth the width of a human hair"
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    "In order to understand the unusual world of nanotechnology, we need to get an idea of the units of measure involved. A centimeter is one-hundredth of a meter, a millimeter is one-thousandth of a meter, and a micrometer is one-millionth of a meter, but all of these are still huge compared to the nanoscale. A nanometer (nm) is one-billionth of a meter, smaller than the wavelength of visible light and a hundred-thousandth the width of a human hair [source: Berkeley Lab]. As small as a nanometer is, it's still large compared to the atomic scale. An atom has a diameter of about 0.1 nm. An atom's nucleus is much smaller -- about 0.00001 nm. Atoms are the building blocks for all matter in our universe. You and everything around you are made of atoms. Nature has perfected the science of manufacturing matter molecularly. For instance, our bodies are assembled in a specific manner from millions of living cells. Cells are nature's nanomachines. At the atomic scale, elements are at their most basic level. On the nanoscale, we can potentially put these atoms together to make almost anything" Nanotechnology is measured in a nanometer, which is one-billionth of a meter. Nanotechnology is extremely small, and can help create something from something not seen with human eye.
Zachary D

Superconductor Uses - 0 views

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    possibly used in flying cars    Magnetic-levitation is an application where superconductors perform extremely well. Transport vehicles such as trains can be made to "float" on strong superconducting magnets, virtually eliminating friction between the train and its tracks. Not only would conventional electromagnets waste much of the electrical energy as heat, they would have to be physically much larger than superconducting magnets. A landmark for the commercial use of MAGLEV technology occurred in 1990 when it gained the status of a nationally-funded project in Japan. The Minister of Transport authorized construction of the Yamanashi Maglev Test Line which opened on April 3, 1997. In December 2003, the MLX01 test vehicle (shown above) attained an incredible speed of 361 mph (581 kph)."
Palmer C

Advantages and Disadvantages of Solar Energy - 0 views

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    "Advantages of Solar Power? Solar energy is a clean and renewable energy source. Once a solar panel is installed, solar energy can be produced free of charge. Solar energy will last forever whereas it is estimated that the world's oil reserves will last for 30 to 40 years. Solar energy causes no pollution. Solar cells make absolutely no noise at all. On the other hand, the giant machines utilized for pumping oil are extremely noisy and therefore very impractical. Very little maintenance is needed to keep solar cells running. There are no moving parts in a solar cell which makes it impossible to really damage them. In the long term, there can be a high return on investment due to the amount of free energy a solar panel can produce, it is estimated that the average household will see 50% of their energy coming in from solar panels.   Disadvantages of Solar Power? Solar panels can be expensive to install resulting in a time-lag of many years for savings on energy bills to match initial investments. Electricity generation depends entirely on a countries exposure to sunlight; this could be limited by a countries climate. Solar power stations do not match the power output of similar sized conventional power stations; they can also be very expensive to build. Solar power is used to charge batteries so that solar powered devices can be used at night. The batteries can often be large and heavy, taking up space and needing to be replaced from time to time."
Lexie D

Human genome - Wikipedia, the free encyclopedia - 0 views

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    this is the the definition of the human genome. "The human genome is the complete set of genetic information for humans (Homo sapiens). This information is encoded as DNA sequences within the 23 chromosome pairs in cell nuclei and in a small DNA molecule found within individual mitochondria. Human genomes include both protein-coding DNA genes and noncoding DNA. Haploid human genomes (contained in egg and sperm cells) consist of three billion DNA base pairs, while diploid genomes (found in somatic cells) have twice the DNA content. While there are significant differences among the genomes of human individuals (on the order of 0.1%), these are considerably smaller than the differences between humans and their closest living relatives, the chimpanzees (approximately 4%[1]) and bonobos."
Holly Harrington

Space Elevators in 2100 Life - 0 views

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    "It is a real possibility -- a "space elevator" -- that researchers are considering today as a far-out space transportation system for the next century." Spacec travel is becoming a more realistic idea. This form of transportation may become widespread in the near future.
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    "Yes, ladies and gentlemen, welcome aboard NASA's Millennium-Two Space Elevator. Your first stop will be the Lunar-level platform before we continue on to the New Frontier Space Colony development. The entire ride will take about 5 hours, so sit back and enjoy the trip. As we rise, be sure to watch outside the window as the curvature of the Earth becomes visible and the sky changes from deep blue to black, truly one of the most breathtaking views you will ever see!" The concept of an elevator, designed to take one beyond the atmosphere of the Earth and into space, has been tossed around a while. The elevator, which is predicted to be 35,786 km in height, may be able to become a reality.
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    "The space elevator may be the answer." This is a quote from this article. This article is from the NASA website. It is reliable because it is from a very reliable company, NASA. This article is explaining what a space elevator is, how it works, and and what it's place will be in 2100, or sometime in the future. We can definitely use this information for making predictions about space travel in our project. I like this source because it was not just a website talking about small details in space elevator construction. This website was very detailed in explaining the science of space elevators. This shows how space elevators will become popular and normal by 2100.
Tristen H

The Dawn of the Age of Artificial Intelligence - Erik Brynjolfsson and Andrew McAfee - ... - 0 views

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    "We're going to see artificial intelligence do more and more, and as this happens costs will go down, outcomes will improve, and our lives will get better. Soon countless pieces of AI will be working on our behalf, often in the background. They'll help us in areas ranging from trivial to substantive to life changing. Trivial uses of AI include recognizing our friends' faces in photos and recommending products. More substantive ones include automatically driving cars on the road, guiding robots in warehouses, and better matching jobs and job seekers. But these remarkable advances pale against the life-changing potential of artificial intelligence."
Dru F

'Physics Of The Future': How We'll Live In 2100? : NPR - 1 views

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    This page summarizes the whole book, "Physics of the Future" . It will be very useful in understanding the summary book.
  • ...1 more comment...
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    This is a 10 minute interview with the author of the book on PBS so you can listen to it. This is going to change the world of warfare and many other fields. ""The first people to buy these contact lenses will be college students studying for final exams," he tells Fresh Air's Terry Gross. "They'll see the exam answers right in their contact lenses. ... In a cocktail party, you will know exactly who to suck up to, because you'll have a complete read out of who they are. President Barack Obama will buy these contact lenses, so he'll never need a teleprompter again. ... These already exist in some form [in the military]. You place [a lens] on your helmet, you flip it down, and immediately you see the Internet of the battlefield ... all of it, right on your eyeball.""
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    article about future of Computers
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    NPR report on Physics of the Future
William B

Medical physics in 2020: will we ... [Australas Phys Eng Sci Med. 2008] - PubMed - NCBI - 1 views

  • From the time when Roentgen and other physicists made the discoveries which led to the development of radiology, radiotherapy and nuclear medicine, medical physicists have played a pivotal role in the development of new technologies that have revolutionized the way medicine is practiced today. Medical physicists have been transforming scientific advances in the research laboratories to improving the quality of life for patients; indeed innovations such as computed tomography, positron emission tomography and linear accelerators which collectively have improved the medical outcomes for millions of people. In order for radiation-delivery techniques to improve in targeting accuracy, optimal dose distribution and clinical outcome, convergence of imaging and therapy is the key. It is timely for these two specialties to work closer again. This can be achieved by means of cross-disciplinary research, common conferences and workshops, and collaboration in education and training for all. The current emphasis is on enhancing the specific skill development and competency of a medical physicist at the expense of their future roles and opportunities. This emphasis is largely driven by financial and political pressures for optimizing limited resources in health care.
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    physicists are trying to improve the quality of life for patients 
Kellie C

The History of the Integrated Circuit - 0 views

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    "Our world is full of integrated circuits. You find several of them in computers. For example, most people have probably heard about the microprocessor. The microprocessor is an integrated circuit that processes all information in the computer. It keeps track of what keys are pressed and if the mouse has been moved. It counts numbers and runs programs, games and the operating system. Integrated circuits are also found in almost every modern electrical device such as cars, television sets, CD players, cellular phones, etc. But what is an integrated circuit and what is the history behind it?"
Kellie C

Moore's law - Wikipedia, the free encyclopedia - 0 views

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    "Moore's law is the observation that, over the history of computing hardware, the number of transistors on integrated circuits doubles approximately every two years. The law is named after Intel co-founder Gordon E. Moore, who described the trend in his 1965 paper.[1][2][3] His prediction has proven to be accurate, in part because the law is now used in the semiconductor industry to guide long-term planning and to set targets for research and development.[4]"
William H

Renewable Energy World - Renewable Energy News, Jobs, Events, Companies, and more - 0 views

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    "Renewable Energy News & Information Featured Article View All Wind Energy 2014 Outlook: Major Markets Recover, Battling Policy and Grid Concerns Wind Energy 2014 Outlook: Major Markets Recover, Battling Policy and Grid Concerns James Montgomery - 1 hour ago Preliminary estimates suggest worldwide wind energy installations were 34-35 GW in 2013, "a substantial dropoff" from a record-setting 2012, according to Steve Sawyer, Secretary General of the Global Wind Energy Council (GWEC). In fact 2013 will have been the first time in nearly... "
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