Tuesday, October 3, 2006

Gol Transportes Aéreos Flight 1907 crashed 1,750km (1,100 miles) north-west of Rio de Janeiro killing all people onboard, on Friday September 29. National Civil Aviation Agency (ANAC) has confirmed that the crashed Brazilian airplane did crash into a smaller aircraft. Rescue workers and air force personnel are searching the wreckage for bodies

Thursday, April 11, 2019

In two studies presented on Monday at the annual meeting of the American Society for Biochemistry and Molecular Biology in Orlando, Florida in the United States, scientists have disclosed new steps toward using natural adhesives made by the dusky Arion slug (Arion subfuscus) in medical applications such as in closing skin wounds and reducing scarring.

When threatened, the dusky Arion slug secretes an unusual glue, making itself a difficult target for predators. This glue remains both sticky and flexible and works even when the surface the slug is on is wet. Previous studies have shown that, unlike many artificial adhesives, Arion slug glue is non-toxic to mammalian tissue.

Scientist Rebecca Falconer, an Ithaca College undergraduate who led one of the two studies, said “Typical sutures like staples and stitches often lead to scarring and create holes in the skin that could increase the chance of infection after surgery […] Understanding the roles of adhesive proteins in the slug glue would aid in the creation of a medical adhesive that can move and stretch yet still retain its strength and adhesiveness.”

In her set of experiments, Falconer observed eleven proteins found only in slug glue and used DNA recombination to produce usable amounts of each of these proteins. Specifically, she produced complementary DNA sequences (cDNA) for each protein, which are stretches of DNA with all the pieces not necessary for producing the protein removed. She then spliced these into circular DNA sequences called plasmids, which she inserted into bacteria, whose natural cellular machinery began to produce the proteins in quantity. She then analyzed the three-dimensional structures that the protein molecules form with each other and with other substances that make them work.

Christopher Gallego-Lazo, also an Ithaca undergrad, evaluated glue from the dusky Arion slug by focusing on the chemical bonds within the glue and the way they affect the glue’s deformability. Gallego-Lazo found that slight changes in these chemical bonds could alter the strength of the slug glue.

Gallego-Lazo said, “Few studies on biological adhesives have identified the exact nature of the bonds holding the glue together […] This knowledge can guide the development of an organic synthetic adhesive that would reduce the risk of infection and scarring compared to stitches and staples and could be applied rapidly and simply.”

Falconer and Gallego-Lazo both performed their research in the laboratory of Dr. Andrew Smith.

Thursday, September 5, 2013

Local residents of Dungog, a small country town in New South Wales (NSW), Australia, held a celebratory nature walk on Sunday after they received assurance that their local forest was deemed worthy of “enduring protection.” Previously, a proposal before the NSW government to log over one million hectares of protected national park forests had caused alarm among nature conservationists.

To celebrate the continued protection of national parks in NSW, a free guided walk was held on Sunday in the Black Bulga Range Conservation Area. This family-friendly nature ramble meandered along the mountain’s ridge, with locals enjoying the forest, sharing a cup of billy tea and knowledge about the local forest’s ecology and history. The physical presence of the locals in the forest demonstrated their continued use of this area and the importance of national parks for the community.

Since early 2012, the possibility of logging for commercial timber in NSW national parks had been emerging. A state government inquiry on the management of public land in NSW received submissions and evidence from both the Australian and NSW Forest Products Associations (FPA). The FPA’s recommendation to “tenure swap” between national parks and state forests in order to sustain the timber industry were included in the final governmental report.

The process began in April 2012 when the NSW Legislative Council —the upper house of the parliament of NSW— established an inquiry into the management of public land in New South Wales, conducted by the General Purpose Standing Committee No. 5. According to a media release from the Legislative Council at the time, the primary purpose of the inquiry was to “scrutinise the management of the State’s public land and review the process and impact of converting Crown Land, State Forests or agricultural land into National Park estate.”

By August that year, the committee had received a recommendation from Mr. Grant Johnson of the Australian Forests Products Association for the “re-introduction of harvesting activities in forest areas previously set aside for conservation.” The following month, Mr. Johnson and Mr Russell Alan Ainley, Executive Director, NSW Forest Products Association, were invited before the committee. At this hearing, the chair, Mr. R. L. Brown, member for the Shooters and Fishers Party, asked Mr. Ainley for “a calculation of the area currently in [national parks] reserve that would need to be returned [to state forest] to be available for timber extraction”. In response, Mr. Ainley suggested “a little more than one million hectares.”

On May 15, the NSW Legislative Council published a Final Report on the management of public land in New South Wales. Among its key recommendations was that “the NSW Government immediately identify appropriate reserved areas for release to meet the levels of wood supply needed to sustain the timber industry, and that the NSW Government take priority action to release these areas, if necessary by a ‘tenure swap’ between national park estate and State forests. In particular, urgent action is required for the timber industry in the Pilliga region.”

A “tenure swap” would reserve areas of NSW state forest where logging is now allowed, in exchange for opening areas of national parks for logging.

Environment groups such as The Nature Conservation Council of NSW and The Wilderness Society announced that these government documents signaled an immediate threat of logging in national parks in NSW. This information raised concerns of other community and activist groups because logging is not conducted in national parks in Australia. According to the NSW Department of Environment, Climate Change and Water, a national park is an area designated to “protect Australia’s plants, animals, ecosystems, unique geology and Aboriginal and non-Aboriginal cultural connections to the land.”

The Black Bulga State Conservation Area was one of many parks listed by the environment group Save Your National Parks as potentially vulnerable for “tenure swap”. This forest covers 1554 hectares and connects Dungog Shire to the World Heritage listed Barrington Tops National Park, part of a green corridor from the ocean to the mountains.

Residents living near the forest were concerned by the proposal for logging in their area. A local information day held in June, at the Settlers Arms, Dungog, motivated local action. As a consequence of the event, over forty hand-written letters were posted to the Premier and local MPs. In a recent reply from the NSW government, the Minister for the Environment, Robyn Parker, stated: “The Government does not support commercial logging in national parks and reserves, including Black Bulga State Conservation Area, and has no plans to allow it. The NSW Government recognises that our national parks and reserves are special and unique places that deserve enduring protection. The Government is committed to their important role in conserving native flora and fauna and cultural heritage, and to improving community well-being through increased opportunities for recreation and tourism”.

As reported in the Dungog Chronicle, Jo New of the Black Bulga Range Action Group was thrilled by the government’s response to a community-driven campaign. “It goes to show what a wonderful impact local people can have after they do something simple, like posting a letter”.

Tuesday, February 3, 2009

A six-pound infant born in San Francisco, California has six perfectly formed and functional fingers and toes on his hands and feet, so that it isn’t considered a disability or deformity, say doctors at Saint Luke’s Hospital who were amazed by the oddity.

In a medical rarity, super baby Kamani Hubbard was born two weeks ago with 24 working digits. He is healthy and home with his parents in Daly City, California. Polydactyly, a congenital disorder is not uncommon in humans and animals, including cats, but to happen on both hands and feet is a rare hereditary condition.

“Nurses and doctors, looked so normal they couldn’t tell, they told me he was six pounds in good health, that was all they said,” said Miryoki Gross, Hubbard’s mother. Her baby’s specialness didn’t even show up on prenatal ultrasounds. “I heard nothing before I gave birth so I’m still in shock, kinda,” Gross added. Despite the mother’s shock, Kamani’s father, Kris, was the first to notice the condition.

Polydactyly (from Ancient Greek means ‘?????’ (polus) or “many” + ‘????????’ (daktulos) “finger[s]”), also known as polydactylism, sexdactyly, hexadactyly, or hexadactylism, is a congenital physical disorder consisting of supernumerary fingers or toes.

In Kamani’s case, however, all of the digits are perfectly formed and function or work normally. “I was in amazement, it took a little time for me to take it all in,” said Kris, a postal worker, who has a family history of polydactylism, but none of his relatives can remember it happening on both hands and feet.

Mostly, cases of polydactyly are surgically corrected. Kris himself had nubs of sixth digits, which were removed during his early childhood, for having been non-functional. “My son has six fingers then I saw toes, and I thought, this is quite unique. Some family members have had six fingers, not completely developed. But not the toes,” Kris noted.

“I would be tempted to leave those fingers in place. I realize children would tease each other over the slightest things, and having extra digits on each hand is more than slight. But imagine what sort of a pianist a 12-fingered person would be imagine what sort of a flamenco guitarist, if nothing else think of their typing skills,” Dr. Treece remarked.

“I just want him to see what greatness will be in store for him,” said Kris.

Fully developed and functional extra digits on both hands and feet are considered very rare as a genetic trait in medical history, amid some partial development of an extra digit occurs about twice in every 1,000 white male births. Ordinarily, polydactylism appears as an extra piece of non-functional tissue, typically occurring as an extra finger, sometimes with a bone, but no joint.

“It’s merely an interesting and beautiful variation rather than a worrisome thing,” said Dr. Michael Treece, a St. Luke’s Hospital pediatrician, and the OBGYN who delivered Kamani. He has postaxial polydactyly, which is 10 times more likely to occur in black children, and also more likely to appear in boys.

Goliath, a figure in Old Testament, was depicted as having had six fingers on each hand and six toes on each foot.

Blues guitarist Hound Dog Taylor, Get Carter, Little Tich, Toyotomi Hideyoshi and several other figures in history have had polydactyly. Sid Wilson, a turntablist of Slipknot, had been born with an extra finger and toe on his hands and feet which were removed shortly after his birth as doctors considered them to be dead.

Tuesday, July 3, 2007

Younger Americans may be more receptive to traditionally liberal social policy than their parents, according to a recent poll conducted by the New York Times, CBS News, and MTV. The survey found those ages 17 to 29 to be substantially more interested in Presidential politics, with nearly 60 percent expressing interest in the 2008 race, compared to 35 percent at approximately the same point in the 2004 campaign.

Government-sponsored health care received strong support among the younger voters polled, at 62 percent, compared with just 47 percent support across voters of all ages. Younger voters appear more supportive of same-sex marriage, legalization of marijuana, and liberalized immigration policy as well.

Optimism about the outcome of the war in Iraq was higher among the young, with 51 percent of those surveyed predicting a successful outcome, although 87 percent opposed the institution of a draft. Among all adults, 45 percent envision a successful outcome of the war.

In stark contrast, younger Americans expressed a generally pessimistic attitude about their future personally and the direction of the country in general. Nearly half predict that they will not enjoy the same success as their parents, and 70 percent felt that the country was on the wrong track.

Despite differences on social policy, some similarities emerged in the poll. Survey data indicated that just 28 percent of those polled approved of the Bush administration’s performance, which is fairly consistent with other polls of the President’s performance, hovering around 30 percent. Support for abortion was also similar between youth and voters in general.

A majority of younger voters indicated that they would vote for a Democrat for President in 2008, reflecting previous trends. Voter turnout among the young has historically lagged turnout rates for all adults, although 2004 saw sharp increases in young voter participation. That year, 47 percent of 18 to 24-year-olds voted, compared with 36 percent in the 2000 election. A majority of the young have cast votes for the Democratic nominee in every Presidential race since 1992.

The poll surveyed 659 participants via telephone in mid-June, and has a margin of error of four percent.