Posts tagged China
CU study: Bug-eyed lenses capture wide view with no distortion
0Lenses shaped like the bulging, bowl-shaped eyes possessed by dragonflies, praying mantises, houseflies and other insects can take exceptionally wide-angle photos without distorting the image.
To create the innovative camera, which also allows for a practically infinite depth of field, the scientists used stretchable electronics and a pliable sheet of microlenses made from a material similar to that used for contact lenses. The researchers described the camera in an article published today in the journal Nature.
Conventional wide-angle lenses, such as fisheyes, distort the images they capture at the periphery, a consequence of the mismatch of light passing through a hemispherically curved surface of the lens only to be captured by the flat surface of the electronic detector.
For the digital camera described in the new study, the researchers were able to create an electronic detector that can be curved into the same hemispherical shape as the lens, eliminating the distortion.
“The most important and most revolutionizing part of this camera is to bend electronics onto a curved surface,” said Jianliang Xiao, assistant professor of mechanical engineering at CU-Boulder and co-lead author of the study. “Electronics are all made of silicon, mostly, and silicon is very brittle, so you can’t deform the silicon. Here, by using stretchable electronics we can deform the system; we can put it onto a curved surface.”
Creating a camera inspired by the compound eyes of arthropods — animals with exoskeletons and jointed legs, including all insects as well as scorpions, spiders, lobsters and centipedes, among other creatures — has been a sought-after goal. Compound eyes typically have a lower resolution than the eyes of mammals, but they give arthropods a much larger field of view than mammalian eyes as well as high sensitivity to motion and an infinite depth of field.
Compound eyes consist of a collection of smaller eyes called ommatidia, and each small eye is made up of an independent corneal lens as well as a crystalline cone, which captures the light traveling through the lens. The number of ommatidia determines the resolution and varies widely among arthropods. Dragonflies, for example, have about 28,000 tiny eyes while worker ants have only in the neighborhood of 100.
Imitating the corneal lens-crystalline cone pairings, the camera created by Xiao and his colleagues has 180 miniature lenses, each of which is backed with its own small electronic detector. The number of lenses used in the camera is similar to the number of ommatidia in the compound eyes of fire ants and bark beetles.
The electronics and the lenses are both flat when fabricated, said Xiao, who began working on the project as a postdoctoral researcher in John Roger’s lab at the University of Illinois at Urbana-Champaign. This allows the product to be manufactured using conventional systems.
“This is the key to our technology,” Xiao said. “We can fabricate an electronic system that is compatible with current technology. Then we can scale it up.”
The lens sheet and the electronics sheet are integrated together while flat and then molded into a hemispherical shape afterward. Each individual electronic detector and each individual lens do not deform, but the spaces between the detectors and lenses can stretch and allow for the creation of a new 3-D shape. The electronic detectors are all attached with serpentine filament bridges, which are not compromised as the material stretches and bends.
In the pictures taken by the new camera, each lens-detector pairing contributes a single pixel to the image. Moving the electronic detectors directly behind the lenses — instead of having just one detector sitting farther behind a single lens, as in conventional cameras — creates a very short focal length, which allows for the near-infinite depth of field.
The new paper demonstrates that stretchable electronics can be used as the foundation for a distortion-free hemispherical camera, but commercial production of such a camera may still be years away, Xiao said.
The three other co-lead authors of the paper are Young Min Song, Yizhu Xie and Viktor Malyarchuk, all of the University of Illinois. Other co-authors are Ki-Joong Choi, Rak-Hwan Kim and John Rogers, also of Illinois; Inhwa Jung, of Kyung Hee University in Korea; Zhuangjian Liu, of the Institute of High Performance Computing A*star in Singapore; Chaofeng Lu, of Zhejiang University in China and Northwestern University; Rui Li, of Dalian University of Technology in China; Kenneth Crozier, of Harvard University; and Yonggang Huang, of Northwestern University.
The research was funded by the Defense Advanced Research Projects Agency and the National Science Foundation.
CU news release
Related posts:
Volcanic aerosols, not pollutants, tamped down recent Earth warming, says CU study
0A team led by the University of Colorado Boulder looking for clues about why Earth did not warm as much as scientists expected between 2000 and 2010 now thinks the culprits are hiding in plain sight — dozens of volcanoes spewing sulfur dioxide.
The study results essentially exonerate Asia, including India and China, two countries that are estimated to have increased their industrial sulfur dioxide emissions by about 60 percent from 2000 to 2010 through coal burning, said lead study author Ryan Neely, who led the research as part of his CU-Boulder doctoral thesis. Small amounts of sulfur dioxide emissions from Earth’s surface eventually rise 12 to 20 miles into the stratospheric aerosol layer of the atmosphere, where chemical reactions create sulfuric acid and water particles that reflect sunlight back to space, cooling the planet.
Neely said previous observations suggest that increases in stratospheric aerosols since 2000 have counterbalanced as much as 25 percent of the warming scientists blame on human greenhouse gas emissions. “This new study indicates it is emissions from small to moderate volcanoes that have been slowing the warming of the planet,” said Neely, a researcher at the Cooperative Institute for Research in Environmental Sciences, a joint venture of CU-Boulder and the National Oceanic and Atmospheric Administration.
A paper on the subject was published online in Geophysical Research Letters, a publication of the American Geophysical Union. Co-authors include Professors Brian Toon and Jeffrey Thayer from CU-Boulder; Susan Solomon, a former NOAA scientist now at the Massachusetts Institute of Technology; Jean Paul Vernier from NASA’s Langley Research Center in Hampton, Va.; Catherine Alvarez, Karen Rosenlof and John Daniel from NOAA; and Jason English, Michael Mills and Charles Bardeen from the National Center for Atmospheric Research in Boulder.
The new project was undertaken in part to resolve conflicting results of two recent studies on the origins of the sulfur dioxide in the stratosphere, including a 2009 study led by the late David Hoffman of NOAA indicating aerosol increases in the stratosphere may have come from rising emissions of sulfur dioxide from India and China. In contrast, a 2011 study led by Vernier — who also provided essential observation data for the new GRL study — showed moderate volcanic eruptions play a role in increasing particulates in the stratosphere, Neely said.
The new GRL study also builds on a 2011 study led by Solomon showing stratospheric aerosols offset about a quarter of the greenhouse effect warming on Earth during the past decade, said Neely, also a postdoctoral fellow in NCAR’s Advanced Study Program.
The new study relies on long-term measurements of changes in the stratospheric aerosol layer’s “optical depth,” which is a measure of transparency, said Neely. Since 2000, the optical depth in the stratospheric aerosol layer has increased by about 4 to 7 percent, meaning it is slightly more opaque now than in previous years.
“The biggest implication here is that scientists need to pay more attention to small and moderate volcanic eruptions when trying to understand changes in Earth’s climate,” said Toon of CU-Boulder’s Department of Atmospheric and Oceanic Sciences. “But overall these eruptions are not going to counter the greenhouse effect. Emissions of volcanic gases go up and down, helping to cool or heat the planet, while greenhouse gas emissions from human activity just continue to go up.”
The key to the new results was the combined use of two sophisticated computer models, including the Whole Atmosphere Community Climate Model, or WACCM, Version 3, developed by NCAR and which is widely used around the world by scientists to study the atmosphere. The team coupled WACCM with a second model, the Community Aerosol and Radiation Model for Atmosphere, or CARMA, which allows researchers to calculate properties of specific aerosols and which has been under development by a team led by Toon for the past several decades.
Neely said the team used the Janus supercomputer on campus to conduct seven computer “runs,” each simulating 10 years of atmospheric activity tied to both coal-burning activities in Asia and to emissions by volcanoes around the world. Each run took about a week of computer time using 192 processors, allowing the team to separate coal-burning pollution in Asia from aerosol contributions from moderate, global volcanic eruptions. The project would have taken a single computer processor roughly 25 years to complete, said Neely.
The scientists said 10-year climate data sets like the one gathered for the new study are not long enough to determine climate change trends. “This paper addresses a question of immediate relevance to our understanding of the human impact on climate,” said Neely. “It should interest those examining the sources of decadal climate variability, the global impact of local pollution and the role of volcanoes.”
While small and moderate volcanoes mask some of the human-caused warming of the planet, larger volcanoes can have a much bigger effect, said Toon. When Mount Pinatubo in the Philippines erupted in 1991, it emitted millions of tons of sulfur dioxide into the atmosphere that cooled the Earth slightly for the next several years.
The research for the new study was funded in part through a NOAA/ ESRL-CIRES Graduate Fellowship to Neely. The National Science Foundation and NASA also provided funding for the research project. The Janus supercomputer is supported by NSF and CU-Boulder and is a joint effort of CU-Boulder, CU Denver and NCAR.
Related posts:
New CU Boulder discoveries hold promise for treatment of Hepatitis B virus infection
0A University of Colorado Boulder-led team has discovered two prime targets of the Hepatitis B virus in liver cells, findings that could lead to treatment of liver disease in some of the 400 million people worldwide currently infected with the virus.
CU-Boulder Professor Ding Xue, who led the studies, said scientists have been looking for cellular targets of the Hepatitis B virus, or HBV, for more than three decades. Infections from HBV promote hepatitis (inflammation of the liver), cirrhosis (scarring of the liver) and liver cancer and can be transmitted through blood and bodily fluids, unprotected sex, unsterile needles and from infected mother to offspring during birth.

CU professor Ding Xue
Xue said scientists have known for some time that HBV encodes a pathogenic, tumor-promoting protein known as HBx, but how it works has remained largely unknown. In two new studies, Xue and his colleagues showed that the “host targets” of HBx in human cells are two small cell proteins known as Bcl-2 and Bcl-xL, both of which are well-known cell death inhibitors but which have not previously been implicated in HBV infection.
HBx uses a particular “motif,” a small string of protein building blocks known as amino acids that resemble those seen in some cell death-causing proteins, to interact with the Bcl-2 and Bcl-xL targets and stimulate an elevation of calcium in the host cell. The calcium elevation then triggers both viral HBV replication and cell death, said Xue.
When the researchers introduced gene mutations into the motif, HBx binding to the Bcl-2 and Bcl-xL proteins and viral replication were prevented. Similarly, when either Bcl-2 or Bcl-xL proteins were “knocked out” or weakened in human liver cells, HBx was less able to cause an increase in calcium and viral replication inside the infected cells.
“Our most important findings are the identification of the motif itself and the two HBx host targets,” said Xue of CU-Boulder’s molecular, cellular and developmental biology department. “Now we can start thinking about new drug targets to treat HBV.”

Two papers on the subject led by Xue were published online Oct. 22 in the Proceedings of the National Academy of Sciences. In addition to major CU-Boulder co-authors Xin Geng, Brian Harry, Qinghua Zhou, Yan Qin and Amy Palmer, a group led by Professor Ning-Shao Xia from the National Institute of Diagnostics and Vaccine Development in Infectious Diseases at Xiamen University in China collaborated on one of the studies.
The World Health Organization estimated in July that about 600,000 people die annually from acute or chronic HBV infection, which is most predominant in Asia and Africa.
In one of the PNAS studies, the authors used a tiny roundworm known as C. elegans, a widely used animal model in biomedical research, to identify HBx host targets within the cell. Xue and his team showed that HBx can induce cell death in C. elegans through a protein known as CED-9, mimicking an early stage of liver infection by HBV.
Previous work had shown CED-9 in C. elegans is a homolog of the human Bcl-2 protein — a different protein in a different animal that has a similar function. Despite the stark differences between roundworms and humans, scientists estimate 35 percent of C. elegans genes have human homologs.
“Our results suggest that C. elegans can serve as a good animal model for identifying crucial host factors and cell signaling pathways and aid in development of strategies to treat HBV-induced liver disorders,” said Xue. “I think the use of C. elegans will galvanize the field of HBV study, which has been in search of a good animal model for three decades.”
Simple animal models like fruit flies and roundworms have been critical for understanding fundamental biological processes such as aging, cell death and the regulation of gene expression. “Many would not have considered using C. elegans as a model to study HBV, but the genetic ‘tools’ of C. elegans are ideal for the identification of viral host targets, even though C. elegans is not a native host for the virus,” said CU’s Harry. Harry is pursuing both a Ph.D. degree in MCD Biology at CU-Boulder and an M.D. at the CU School of Medicine on the Anschutz Medical Campus in Aurora through the Medical Scientist Training Program.
“Both studies show that if you create two mutations in this small HBx motif, it takes away its ability to bind to Bcl-2 family proteins. This wipes out viral replication and host cell death caused by HBx expression,” said Harry.
Xue said there currently is no effective treatment for chronic HBV carriers, although some people with chronic HBV are treated with interferon and anti-viral drugs. But such treatments are either unavailable or too expensive in developing countries where most of the HBV infections are occurring. “That’s why these new findings could have profound clinical and pharmaceutical implications for the treatment of HBV patients,” he said.
Harry said the Hepatitis B vaccine, which was developed in 1982, is administered around the world and has been shown to work well in preventing new infections. “The problem is that once you are infected, there is no effective way to remove the virus from the body,” he said. “When the virus replicates in liver cells, it causes cycles of cellular damage, inflammation and tissue regeneration, resulting in the accumulation of genetic mutations and liver cancer.”
HBV is 50 to 100 times more infectious than the HIV virus, according to WHO officials. In China and other parts of Asia, most people acquire HBV during childhood and 8 to 10 percent of the adult population is chronically infected. “Because of this, understanding how HBV and HBx cause pathogenesis can have dramatic clinical impact,” said Xue.
Funding for the two PNAS studies was provided by the National Institutes of Health grants F30 NS070596 and R01 GM059083, GM079097, GM088241 and GM084027. Additional funding came from the China National Science Foundation and the Burroughs Wellcome Fund.
Related posts:
CU study: Little Ice Age caused by four massive volcanoes
0
New CU-led study may answer long-standing
questions about enigmatic Little Ice Age
A new University of Colorado Boulder-led study appears to answer contentious questions about the onset and cause of Earth’s Little Ice Age, a period of cooling temperatures that began after the Middle Ages and lasted into the late 19th century.
According to the new study, the Little Ice Age began abruptly between A.D. 1275 and 1300, triggered by repeated, explosive volcanism and sustained by a self- perpetuating sea ice-ocean feedback system in the North Atlantic Ocean, according to CU-Boulder Professor Gifford Miller, who led the study. The primary evidence comes from radiocarbon dates from dead vegetation emerging from rapidly melting icecaps on Baffin Island in the Canadian Arctic, combined with ice and sediment core data from the poles and Iceland and from sea ice climate model simulations, said Miller.
While scientific estimates regarding the onset of the Little Ice Age range from the 13th century to the 16th century, there is little consensus, said Miller. There is evidence the Little Ice Age affected places as far away as South America and China, although it was particularly evident in northern Europe. Advancing glaciers in mountain valleys destroyed towns, and famous paintings from the period depict people ice skating on the Thames River in London and canals in the Netherlands, waterways that were ice-free in winter before and after the Little Ice Age.
“The dominant way scientists have defined the Little Ice Age is by the expansion of big valley glaciers in the Alps and in Norway,” said Miller. “But the time it took for European glaciers to advance far enough to demolish villages would have been long after the onset of the cold period,” said Miller, a fellow at CU’s Institute of Arctic and Alpine Research.

Most scientists think the Little Ice Age was caused either by decreased summer solar radiation, erupting volcanoes that cooled the planet by ejecting shiny aerosol particles that reflected sunlight back into space, or a combination of both, said Miller.
The new study suggests that the onset of the Little Ice Age was caused by an unusual, 50-year-long episode of four massive tropical volcanic eruptions. Climate models used in the new study showed that the persistence of cold summers following the eruptions is best explained by a sea ice-ocean feedback system originating in the North Atlantic Ocean.
“This is the first time anyone has clearly identified the specific onset of the cold times marking the start of the Little Ice Age,” said Miller. “We also have provided an understandable climate feedback system that explains how this cold period could be sustained for a long period of time. If the climate system is hit again and again by cold conditions over a relatively short period — in this case, from volcanic eruptions — there appears to be a cumulative cooling effect.”

A paper on the subject is being published Jan. 31 in Geophysical Research Letters, a publication of the American Geophysical Union. The paper was authored by scientists and students from CU-Boulder, the National Center for Atmospheric Research in Boulder, the University of Iceland, the University of California, Irvine, and the University of Edinburgh in Scotland. The study was funded in part by the National Science Foundation and the Icelandic Science Foundation.
As part of the study, Miller and his colleagues radiocarbon-dated roughly 150 samples of dead plant material with roots intact collected from beneath receding ice margins of ice caps on Baffin Island. There was a large cluster of “kill dates” between A.D. 1275 and 1300, indicating the plants had been frozen and engulfed by ice during a relatively sudden event.
Both low-lying and higher altitude plants all died at roughly the same time, indicating the onset of the Little Ice Age on Baffin Island — the fifth largest island in the world — was abrupt. The team saw a second spike in plant kill dates at about A.D. 1450, indicating the quick onset of a second major cooling event.

To broaden the study, the team analyzed sediment cores from a glacial lake linked to the 367-square-mile Langjökull ice cap in the central highlands of Iceland that reaches nearly a mile high. The annual layers in the cores — which can be reliably dated by using tephra deposits from known historic volcanic eruptions on Iceland going back more than 1,000 years — suddenly became thicker in the late 13th century and again in the 15th century due to increased erosion caused by the expansion of the ice cap as the climate cooled, he said.
“That showed us the signal we got from Baffin Island was not just a local signal, it was a North Atlantic signal,” said Miller. “This gave us a great deal more confidence that there was a major perturbation to the Northern Hemisphere climate near the end of the 13th century.” Average summer temperatures in the Northern Hemisphere did not return to those of the Middle Ages until the 20th century, and the temperatures of the Middle Ages are now exceeded in many areas, he said.
The team used the NCAR-based Community Climate System Model to test the effects of volcanic cooling on Arctic sea ice extent and mass. The model, which simulated various sea ice conditions from about A.D. 1150-1700, showed several large, closely spaced eruptions could have cooled the Northern Hemisphere enough to trigger Arctic sea ice growth.
The models showed sustained cooling from volcanoes would have sent some of the expanding Arctic sea ice down along the eastern coast of Greenland until it eventually melted in the North Atlantic. Since sea ice contains almost no salt, when it melted the surface water became less dense, preventing it from mixing with deeper North Atlantic water. This weakened heat transport back to the Arctic and creating a self-sustaining feedback system on the sea ice long after the effects of the volcanic aerosols subsided, he said.
“Our simulations showed that the volcanic eruptions may have had a profound cooling effect,” says NCAR scientist Bette Otto-Bliesner, a co-author of the study. “The eruptions could have triggered a chain reaction, affecting sea ice and ocean currents in a way that lowered temperatures for centuries.”
The researchers set the solar radiation at a constant level in the climate models, and Miller said the Little Ice Age likely would have occurred without decreased summer solar radiation at the time. “Estimates of the sun’s variability over time are getting smaller, it’s now thought by some scientists to have varied little more in the last millennia than during a standard 11-year solar cycle,” he said.
One of the primary questions pertaining to the Little Ice Age is how unusual the warming of Earth is today, he said. A previous study led by Miller in 2008 on Baffin Island indicated temperatures today are the warmest in at least 2,000 years.
Other co-authors on the paper include CU-Boulder’s Yafang Zhong, Darren Larsen, Kurt Refsnider, Scott Lehman and Chance Anderson, NCAR’s Marika Holland and David Bailey, the University of Iceland’s Áslaug Geirsdóttir, Helgi Bjornsson and Darren Larsen, UC-Irvine’s John Southon and the University of Edinburgh’s Thorvaldur Thordarson. Larsen is doctoral student jointly at CU-Boulder and the University of Iceland.
-
Related posts:
CU scientists: CO2 emissions a HUGE problem
0Growing global CO2 emissions a huge cause for concern, say CU scientists
New calculations showing the global output of heat-trapping carbon dioxide gases jumped by the largest amount on record in 2010 is more evidence that society has made a choice to continue to accelerate climate change, say two University of Colorado Boulder experts.
The new figures calculated by the U.S. Department of Energy show the world pumped more than 560 additional tons of carbon into the atmosphere in 2010 than in 2009, an increase of 6 percent. There are currently 392 parts per million of CO2 in Earth’s atmosphere, a rise of more than 100 since the Industrial Revolution, said CU-Boulder Institute of Arctic and Alpine Research Director Jim White.
The CO2 rise is driven primarily by growing industry in China and India — the two highest users of coal — as well as the United States, said White. “While the world population growth has slowed, the use of fossil fuels continues at a record pace,” he said. Studies have shown Earth’s land temperatures have increased by 1.6 degrees Fahrenheit since the 1950s.
“While it is good news that the global economy continues to grow, we clearly have not taken greenhouse gases and climate change seriously,” said White, an expert on ice cores and climate change. Only a substantial and rapid global move toward alternative energies can slow the growth of CO2 emissions, he said.
“We are rolling the dice here, which is not a good way to plan for the future,” said geography Professor Mark Serreze, director of CU-Boulder’s National Snow and Ice Data Center and an expert on declining Arctic sea ice.
“The warning signs of climate change are all around us, and we have decided to ignore them,” said Serreze. “Humankind has made a choice to do nothing, and we can never go back to where we were again. As a consequence, we will have to adapt to change.”
For more information contact White at 303-492-2219 or james.white@colorado.edu, Serreze at 303-492 -2963 or serreze@kryos.colorado.edu or Jim Scott in the CU-Boulder media relations and news office at 303-492-3114.
Related posts:
“Straw Dogs” an Exercise in Violence
0“Another Unnecessary Remake”
“Hotshots” looks at a movie!
Straw Dogs is a remake of the classic 1971 film starring Dustin Hoffman and Susan George that was directed by acclaimed director Sam Peckinpah, who was known for the violence in his movies.
This 2011 version stars James Marsden and Kate Bosworth and was directed by Rod Lurie, and the location has been changed from a small town in western England to a small town in Southern Mississippi.
The title comes from the straw dogs that were used as ceremonial objects in ancient China. They were used as sacrifices, dressed up, put on the altar, and then when the ceremony was over, they were thrown into the street.
David and Amy are married, and when they drive into Blackwater, Mississippi, where Amy grew up, she mentions that the young good ol’ boys in town don’t have much to do anymore after their glory days of high-school football are over, and David compares them to the “straw dogs” of ancient China.
David is a Hollywood screenwriter, Amy recently starred in a television series, and they are in Blackwater because Amy’s father died and they are there to fix up his house and then sell it.
So, when they meet Charlie in town and find out that he has a small construction business, they hire Charlie to repair the roof on the barn.
Charlie says, “We take care of our own here,” and then he says to Amy, “Remember when I took care of you?”
And that is when David learns that Amy and Charlie had been high-school sweethearts.
Well, you can see where this is going, can’t you? Charlie and his construction team are rude and obnoxious, they ogle Amy because of the provocative way she dresses, and they belittle David almost every chance they get, because he doesn’t understand their small-town Southern culture, doesn’t fit in, and unknowingly insults them.
And then when Charlie and the boys invite David to go hunting with them, David feels obligated to go with them as a gesture of good will, but, of course, things don’t end well.
Things don’t end well at all, which can also be said about the whole movie.
There are some small subplots that attempt to flesh out the main plot, but basically the movie is an exercise in violence.
Straw Dogs is just another unnecessary remake.
I’m Dan Culberson and this is “Hotshots.”
Related posts:
Boulder police arrest suspect in attempted murder case
0Police in Boulder have arrested a 27-year-old man on suspicion of attempted second-degree murder after a 28-year-old male victim was attacked early this morning in the University Hill area.
Jeffrey Carter Neering (DOB 7/27/1984) is suspected of cutting the throat of Jason Patrick Chilson of Denver, who was in Boulder to visit friends. Witnesses told police that an altercation took place between Neering and a friend of the victim at K’s China restaurant, located at 1325 Broadway, sometime after 2:00 a.m. Restaurant employees broke up the altercation and told everyone to leave.
After they left the restaurant, Chilson and his two friends were walking near The Goose when a man — believed to be Neering — jumped on Chilson’s back and cut his throat. Chilson’s friend was trying to defend him when bouncers from The Goose intervened and broke everyone apart. Neering then ran away.
Witnesses at K’s China identified Neering and told investigators that he was a regular at the restaurant. Police attempted to contact Neering at his last known address; however he was no longer living there. Police located Neering later Thursday morning at an apartment Neering had vacated some time ago. He had broken into it and spent the night there. Neering will be charged with first-degree criminal trespass in addition to the other charge mentioned above.
Neering has been positively identified by the victim and the witnesses involved in this case. He is in custody at the Boulder County Jail and his bond was set at $250,000.
Anyone with information about this incident is asked to contact Detective Ruth Christopher at 303-441-1850. Those who have information but wish to remain anonymous may contact the Northern Colorado Crime Stoppers at 1-800-222-TIPS (8477) or 1-800-444-3776. Tips can also be submitted through the Crime Stoppers website at www.crimeshurt.com. Those submitting tips through Crime Stoppers that lead to the arrest and filing of charges on a suspect(s) may be eligible for a cash reward of up to $1,000 from Crime Stoppers.
Related posts:
CU-BOULDER STUDENT NATHAN ROBERSON CHOSEN FOR PBS’S STUDENT FREEDOM RIDE
0University of Colorado Boulder senior Nathan Roberson has been selected from a national candidate pool to participate in the “2011 Student Freedom Ride,” organized by the Public Broadcasting Service show “American Experience.”
The ride will present an experiential learning opportunity for the participating college students in conjunction with the broadcast of “Freedom Riders” and the 50th anniversary of the original May 1961 Freedom Rides.
Roberson (pronounced RAH-ber-son) is an international affairs major with interests in ethics and voter enfranchisement.
The 40 Student Freedom Riders were chosen from nearly 1,000 applicants and represent a diverse cross-section of America. Participating students hail from 33 states and the District of Columbia, along with others who grew up in China, Tajikistan and Haiti.
Students from a broad range of schools are represented — from state universities to community and junior colleges, from religiously affiliated schools to the Ivy League. Students were selected on the basis of their essays on their reasons for wanting to participate, their thoughts on the role of social media and technology in civic engagement today, and their extracurricular activities.
Over a 10-day journey from May 6 through May 16, the ride will be a moving classroom in which the students will retrace the route of the original Freedom Rides. Accompanied by filmmaker Stanley Nelson, original Freedom Riders and others, the ride will engage students in this important era in our country’s history, as they learn about the extraordinary commitment and courage of the individuals who took part in the Freedom Rides.
Roberson will miss his May 6 commencement ceremony to participate in the PBS event.
“At ‘American Experience,’ we think history is fascinating, but more importantly, we know it informs almost every social and political decision made today,” said “American Experience’’ executive producer Mark Samels. “We saw that in Egypt, where protesters looked to the American civil rights movement for instruction and inspiration.
“Fifty years after the original Freedom Rides, young people all over the world are once again having their voices heard. They’re using new and very different tools to do that, but drawing on lessons from history to inform how they use those tools. It’s those lessons from 1961 and how they are informing civic engagement today that we look forward to exploring on this ride.”
“Freedom Riders” will be broadcast on PBS on Monday, May 16, at 9 p.m. Eastern Daylight Time.
A website, twitter stream and Facebook page will be chronicling the riders experiences, as well as cataloging in-depth information about the original Freedom Riders.
Related posts:
中國國家主席胡錦濤和約翰丹佛鄉村路##博爾德阿斯 Chinese President Hu Jintao & John Denver Country roads #Aspen #Boulder
0中國國家主席胡錦濤和約翰丹佛鄉村路##博爾德阿斯
這是這位美國流行的歌曲贏得了心中的中國政府於 1975年,改變了世界。約翰 Denvers’美國科羅拉多州阿斯彭取得聯繫,從這個星期可能。這是博爾德通道1的讚揚和Aspen同時中國。胡錦濤主席可能會高興地知道,博爾德是經常提到人民共和國博爾德的大國後,中國和它的共產黨的政策。我們是在美國最共產主義的城市。也許他想參觀這裡和發送許多中國遊客到我們的技術強市。
It was this American Pop song which won the hearts of of the Chinese Government in 1975 and changed the world. John Denvers’ Colorado connection from Aspen made this week possible. This is Boulder Channel 1′s tribute to both China and Aspen. President Hu Jintao may be pleased to know that Boulder is often referred to The Peoples republic of Boulder after the Great Country of China and it’s Communist policies. We are the most Communist city in America. Perhaps he would like to visit here and send many Chinese tourists to our tech strong city.
Related posts:
Boulder zz Kid sisters are respectable
0Boulder sister cities programs receive recognition
Two of Boulder’s sister city programs have received recognition for forging innovative, respectful and responsible collaborations with the international communities they serve.
Boulder Kisumu Sister City Committee
The Boulder Kisumu Sister City Committee has been selected as a top program by the U.S. Center for Citizen Diplomacy. As a result, the program and its successes will be highlighted at the upcoming U.S. Summit for Global Citizen Diplomacy to be held Nov. 16 to 19 in Washington, D.C.
The committee is a not-for-profit, tax-exempt organization founded to encourage the people of the City of Boulder and Kisumu, Kenya, to acquire a consciousness of each other, to understand one another as individuals, as members of their community, as citizens of their country, and as part of the family of nations.
More information about this award can be found at: www.usc4cd.org/summit/taskforce.
Boulder-Lhasa Sister City Project
The Boulder-Lhasa sister city organization received an award at the 2010 China International Friendship Cities Conference in Shanghai last month for its work in Tibet. The plaque honored the group specifically for its “communication and cooperation with China.”
Boulder-Lhasa Sister City Project (BLSCP) is a non-profit public charity formed in 1986 in Boulder, Colorado, which develops and implements non-political exchanges of mutual benefit with Lhasa, Tibet, including surrounding areas, in health care, education, environmental protection, science and technology, agriculture and animal husbandry, and culture and art. Boulder is Tibet’s only sister city in the United States.
“We are so proud of the work our sister cities teams do both for their designated international communities and here at home, where their experiences and partnerships enrich our understanding of our global community,” said Susan Kohl, TITLE with sister cities. “These recognitions underscore the important contributions they – and this program – make.”
For more information on Boulder’s Sister Cities Program, visit the sister cities’ website.
Related posts:
TV NEWS China chicken, North Korea CU grad jobs
0North Korea president names 20 something son and daughter “4 star Generals”. China smacks USA with a chicken. Boulder CU grads can get a few jobs.
Related posts:
Boulder News: latest IN A FLASH FLOOD WARNING.
0It is flood season in Boulder; floods can occur IN A FLASH
The city reminds residents that the flood season is in effect through the end of September. Boulder is the number one flash flood risk community in Colorado due to the city’s proximity to the Front Range and the number of people who live and work near Boulder’s numerous creeks and floodplains. Remember, flash floods can literally occur IN A FLASH during a severe storm. It’s important that residents and people who work in Boulder familiarize themselves with their surroundings, keep track of the weather and know the dangers.
Here are some steps residents and employees can take to increase their safety if a flood event should occur in Boulder:
Before a flood – Be ready:
- Have a plan for where to meet in an emergency and make sure children know where to go when they are at school or away from home.
- Keep an emergency kit accessible. Include a battery-powered radio, extra batteries, flashlights, rubber boots and gloves, first-aid supplies, medicines, water stored in tightly-sealed containers and food that requires no cooking or refrigeration.
During a flood:
- Move to higher ground immediately.
- Stay out of flowing waters. Swift moving waters may sweep people away.
- Avoid driving through flooded areas. Cars float in 18 inches of water and half of all flood fatalities are auto-related.
- Stay away from power lines and electrical-wires. Electrocution is the number two killer in floods.
- If time allows, turn off electricity and gas.
After a flood:
- Do not return to disaster areas until authorized. Clean everything that got wet and take care of yourself.
When an emergency warning is issued by sirens, radio or other media, seek response information immediately. Tune radios to 850 AM or televisions to Boulder’s Municipal Channel 8 or local news.
The city maintains a flood information website that can help residents prepare before, during and after a flood event. Visitwww.boulderfloodinfo.net to see floodplain maps, watch informational videos and obtain a family flood action plan that should be filled out prior to a flood event and posted in homes. The family flood action plan can also be picked up in the Municipal Building, 1777 Broadway. For more information about personal preparedness, visit www.readycolorado.com, or contact the Office of Emergency Management at 303-441-3390.
Channel One Networks is a network of TV channels on the internet located in Boulder Colorado. Boulder Channel 1 is our first super channel . Each week we are adding more channels. See TV Guide . You can watch videos On Demand with the click of a button. We have a wide variety of channels to choose from just like your cable or Satellite provider accept most of our programming is free and WORLD WIDE.
Some shows like our Route 66 travel series can be purchase on DVD. Music Channel 1 is very popular and we will be adding music videos On Demand. You will also, be able to see Jann Scott Live, America’s most popular internet live call in talk show from cool Boulder Colorado.
Purchase a Pixel: Advertisers may purchase a pixel for $1.00 and up for links, 30 second commercials. We are especially interested in programming for each Channel which has niche programming such as Resort Travel, Ski and Snowboard, Home and Garden etc. Music industry and Auto. contact@BoulderChannel1.com
Public Channel: Much of our programming to artists, film makers and World producers is free. Please submit it to us in a down Loadable file. We will have a look at it and let you know. Public Broadcasting. Webmaster@BoulderChannel1.com You can also mail non commercial videos to Programming . Box 869 Boulder Colorado 80306
Link Share. We encourage everyone to include us on your site http://www.boulderchannel1.com Enjoy What all of our channels have to offer the web community world wide
More Information on all Channels: contact@BoulderChannel1.com
Technical Support: Any problems with getting our channels try down loading the following free software or Webmaster@BoulderChannel1.com
News Correspondents: We are looking for serious news internetcasters from Africa, Asia, South America, Europe, India, Central America, Eastern Europe, China, India, Middle East, Mexico, Antartica, Greenland and Outer Space. You must speak English, be 13 to 34 years old, Female or Male, be from the region you are reporting on, have a laptop webcam, a world map or Globe, a national flag from your country and be prepared to file a weekly 1 to 3 minute report on one of the following topics: Famon, enviroment, ecconomy, political enviroment, current events. Music, Fashion, Food. Culture Sex and relationships. Must be straight news with no leftist or rightist bent though we do like sarcasam and humor. We pay $5.00 per report and you will receive press credentials. Please send video, resume, picture to News, Box 869, Boulder, colorado 80304 or Email; contact@BoulderChannel1.com
Boulders Television channel on the web. We bring you Boulder , we bring you the World. http://www.BoulderChannel1.com
Related posts:
latest NEWS: B-cycle Teams with Denver, Colorado, to Launch First Citywide Bicycle-Sharing Program in the U.S.
0
Channel One Networks is a network of TV channels on the internet located in Boulder Colorado. Boulder Channel 1 is our first super channel . Each week we are adding more channels. See TV Guide . You can watch videos On Demand with the click of a button. We have a wide variety of channels to choose from just like your cable or Satellite provider accept most of our programming is free and WORLD WIDE.
Some shows like our Route 66 travel series can be purchase on DVD. Music Channel 1 is very popular and we will be adding music videos On Demand. You will also, be able to see Jann Scott Live, America’s most popular internet live call in talk show from cool Boulder Colorado.
Purchase a Pixel: Advertisers may purchase a pixel for $1.00 and up for links, 30 second commercials. We are especially interested in programming for each Channel which has niche programming such as Resort Travel, Ski and Snowboard, Home and Garden etc. Music industry and Auto. contact@BoulderChannel1.com
Public Channel: Much of our programming to artists, film makers and World producers is free. Please submit it to us in a down Loadable file. We will have a look at it and let you know. Public Broadcasting. Webmaster@BoulderChannel1.com You can also mail non commercial videos to Programming . Box 869 Boulder Colorado 80306
Link Share. We encourage everyone to include us on your site http://www.boulderchannel1.com Enjoy What all of our channels have to offer the web community world wide
More Information on all Channels: contact@BoulderChannel1.com
Technical Support: Any problems with getting our channels try down loading the following free software or Webmaster@BoulderChannel1.com
News Correspondents: We are looking for serious news internetcasters from Africa, Asia, South America, Europe, India, Central America, Eastern Europe, China, India, Middle East, Mexico, Antartica, Greenland and Outer Space. You must speak English, be 13 to 34 years old, Female or Male, be from the region you are reporting on, have a laptop webcam, a world map or Globe, a national flag from your country and be prepared to file a weekly 1 to 3 minute report on one of the following topics: Famon, enviroment, ecconomy, political enviroment, current events. Music, Fashion, Food. Culture Sex and relationships. Must be straight news with no leftist or rightist bent though we do like sarcasam and humor. We pay $5.00 per report and you will receive press credentials. Please send video, resume, picture to News, Box 869, Boulder, colorado 80304 or Email; contact@BoulderChannel1.com
Boulders Television channel on the web. We bring you Boulder , we bring you the World. http://www.BoulderChannel1.com
Related posts:
Boulder awarded 2010 Federal Safe Routes to School funding
0
The City of Boulder has been awarded $198,230 by the Colorado Department of Transportation’s Colorado Safe Routes to School (SRTS) program. The funds will be used to construct the Four Mile Creek greenway trail between 28th and 26th streets and will benefit Crest View Elementary School and Centennial Middle School students, families, faculty and staff. A total of 19 elementary and middle schools have benefited from SRTS funds within the City of Boulder. Fifteen of these are BVSD schools and four are private schools. Childhood obesity rates have more than tripled in the past 30 years while the number of children walking and biking to school has declined. According to the 2001 National Household Travel Survey, less than 16 percent of students between the ages of five and 15 walked or biked to or from school, compared to 42 percent in 1969. Through the 2005 passage of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU), Congress designated a total of $612 million toward developing the National Safe Routes to School Program. For additional information or to get involved, visit these websites: GO Boulder/City of Boulder www.GOBoulder.net Channel One Networks is a network of TV channels on the internet located in Boulder Colorado. Boulder Channel 1 is our first super channel . Each week we are adding more channels. See TV Guide . You can watch videos On Demand with the click of a button. We have a wide variety of channels to choose from just like your cable or Satellite provider accept most of our programming is free and WORLD WIDE. Some shows like our Route 66 travel series can be purchase on DVD. Music Channel 1 is very popular and we will be adding music videos On Demand. You will also, be able to see Jann Scott Live, America’s most popular internet live call in talk show from cool Boulder Colorado. Purchase a Pixel: Advertisers may purchase a pixel for $1.00 and up for links, 30 second commercials. We are especially interested in programming for each Channel which has niche programming such as Resort Travel, Ski and Snowboard, Home and Garden etc. Music industry and Auto. contact@BoulderChannel1.com Public Channel: Much of our programming to artists, film makers and World producers is free. Please submit it to us in a down Loadable file. We will have a look at it and let you know. Public Broadcasting. Webmaster@BoulderChannel1.com You can also mail non commercial videos to Programming . Box 869 Boulder Colorado 80306 Link Share. We encourage everyone to include us on your site http://www.boulderchannel1.com Enjoy What all of our channels have to offer the web community world wide More Information on all Channels: contact@BoulderChannel1.com Technical Support: Any problems with getting our channels try down loading the following free software or Webmaster@BoulderChannel1.com News Correspondents: We are looking for serious news internetcasters from Africa, Asia, South America, Europe, India, Central America, Eastern Europe, China, India, Middle East, Mexico, Antartica, Greenland and Outer Space. You must speak English, be 13 to 34 years old, Female or Male, be from the region you are reporting on, have a laptop webcam, a world map or Globe, a national flag from your country and be prepared to file a weekly 1 to 3 minute report on one of the following topics: Famon, enviroment, ecconomy, political enviroment, current events. Music, Fashion, Food. Culture Sex and relationships. Must be straight news with no leftist or rightist bent though we do like sarcasam and humor. We pay $5.00 per report and you will receive press credentials. Please send video, resume, picture to News, Box 869, Boulder, colorado 80304 or Email; contact@BoulderChannel1.com
The Colorado Safe Routes to School program offers schools and community groups the funding they need to provide SRTS programs. This includes safety education, promotion and engineering solutions that encourage students to get the exercise they need to lead happy and healthy lives. Through SRTS, the city works in partnership with the Boulder Valley School District (BVSD) to address the physical environment and social impediments to walking and biking to school.
“The City of Boulder to date has received more than $900,000 for infrastructure improvements through the SRTS program,” said Director of Public Works for Transportation Tracy Winfree. “These federal funds have allowed us to build a number of projects that make it easier, safer and more convenient for students and their families to bike and walk to school.”
Boulders Television channel on the web. We bring you Boulder , we bring you the World. http://www.BoulderChannel1.com



























![straw-dogs-poster[1]](http://c1n.tv/boulderchannel1/wp-content/uploads/2011/09/straw-dogs-poster1-203x300.jpg)











