Interview with BBC Creative Archive project leader

Thursday, June 22, 2006

The Creative Archive project is a BBC led initiative which aims to make archive audio and video footage available to be freely downloaded, distributed, and ‘remixed’. The project is still in a pilot stage, and is only available to UK residents, but the long-term future of the project could have a major impact on the way audiences interact with BBC content.

The project is partly inspired by the Creative Commons movements, and also by a general move within the BBC to be more open with its assets. Additionally, educational audiences such as schools have expressed an interest in using BBC content within the classroom, both to watch and to create multimedia content from.

So far, clips made available under the licence have included archive news footage, nature documentary footage, and video clips content designed for educational uses. “It’s done very well with the audiences we’ve directed them towards – heavy BBC users,” says Paul Gerhardt, project leader. Users downloading the clips are also prompted to fill in a questionnaire, and so far 10-15% of people seem to be doing something with the material, although the BBC can’t be sure what exactly that is.

One of the biggest limitations within the licence as it currently stands during the pilot scheme is that the material is only available for use by people resident in the UK. The BBC’s Creative Archive sites use ‘geo-IP filtering’ to limit downloads to the UK, but there is some confusion over whether people who create their own content using the material can upload their creations to their own websites. A question within the FAQs for one of the more recent selections of clips suggests that this isn’t possible, saying “during this pilot phase material released under the terms of the Creative Archive Licence cannot be used outside the UK – therefore, unless a website has its use restricted to the UK only, content from the ‘Regions on Film’ archive cannot be published on it.”

“We want people to make full use of this content, whether they cut and paste it or whether they share it, and we completely accept that we’ve got a bit of a contradiction at the moment by saying UK-only and yet encouraging people to put it on their sites to share it with others, because you can’t expect people to have geo-IP restriction technology,” admits Mr Gerhardt. “We’re thinking hard about how to deal with this after the pilot – at the moment it’s quite likely that we’re probably going to need to find a distribution partner outside of the UK, so that if you’re outside of the UK you’ve got roughly the same experience as in the UK, but the content could be surrounded by sponsorship messages or advertising or whatever. Once we’ve done that then leakage from one to the other won’t really matter very much.”

The Creative Archive project has not been without critics from the commercial sector, worried that the BBC giving away their content for free would make it difficult for them to be able to make money from their own content. The BBC has explained to some of the commercial players that the content would be limited during the pilot, would not be available in broadcast quality, and that watermarking technologies would be trialled so that content could be recognised when it crops up elsewhere. The BBC is also investigating a business model for the future where there would be a “close relationship between public access to low-resolution content and a click through to monetising that content if you want to buy a high-resolution version”. People who want to play around with the material might discover they have a talent and then find they need to get a commercial license to use it properly, Mr Gerhardt explains, and the project wants to make it easy for this to happen.

Before the project can go ahead with the full scale launch, it will have to go through a ‘public value test’ to assess its overall impact on the marketplace, and commercial media companies will have a chance to input at this point.

For ease in clearing the rights, all of the content available under the pilot project is factual, but in the future the project could include drama and entertainment content. The BBC may also, in the future, work the Creative Archive licences into the commissioning process for new programmes. “This raises some really interesting ideas – if you have a documentary series, you could use the Creative Archive to release the longer form footage, for instance – that would create a digital legacy of that documentary series,” Mr Gerhardt explains. “The other interesting thought in the longer term would be for the BBC, or another broadcaster, to contribute to a digital pool of archive material on a theme, and then invite people to assemble their own content out of that. We could end up broadcasting both the BBC professionally produced programme accompanied by other programmes that other people had made out of the same material.”

One of the ways that the Creative Archive licence differs from the other ‘copyleft’ licences like Creative Commons, aside from the UK-only limitation, is that the licence currently allows the BBC to update and modify the licence, which may worry those using the licence that their rights could suddenly become more restricted. “The licence at the moment is a draft, and we’ve given warning that we may well improve it, but we wouldn’t do that more than once or twice. The ambition is that by the time we scale up to the full service we would have a fixed licence that everyone was comfortable with, and it wouldn’t change after that.”

“The ambition is to think about creating a single portal where people can search and see what stuff is out there under the same licence terms, from a range of different suppliers. The idea is that if we can create something compelling like that, we will attract other archives in the UK to contribute their material, so we’d be aggregating quite a large quantity.”

The Creative Archive project has captured the interest of many Internet users, who are growing increasingly, used the idea of being able to ‘remix’ technologies and content. Some groups have been frustrated with the speed at which the project is developing though, and with some of the restrictions imposed in the licence. An open letter to the BBC urges the dropping of the UK-only limitation, the use of ‘open formats’, and to allow the material to be usable commercially.

Mr Gerhardt has publicly welcomed debate of the licence, but makes it clear to me that the whole BBC archive will never all be available under the Creative Archive terms. “We will make all our archive available, under different terms, over the next five to ten years, at a pace to be determined. There would be three modes in which people access it – some of the content would only be available commercially, for the first five year or so after broadcast, say. The second route is through a ‘view again’ strategy where you can view the programmes, but they’d be DRM-restricted. And the third mode is Creative Archive. Over time, programmes would move from one mode to another, with some programmes going straight to the Creative Archive after broadcast.”

Others who disagree with the ‘UK-only’ restriction within the licence include Suw Charman, from the Open Rights Group, who has said “it doesn’t make sense in a world where information moves between continents in seconds, and where it is difficult for the average user to exclude visitors based on geography.” On the project generally, though, she said “I think that it is a good step along the way to a more open attitude towards content. It is a toe in the water, which is far preferable to the attitude of most of the industry players, who are simply burying their heads in the sand and hoping that lawsuits and lobbying for new legislation will bolster their out-dated business plan.”

Other organisations currently participating in the Creative Archive scheme include the British Film Institute, the Open University and Teachers’ TV. Two artists have been awarded scholarships to create artworks using BBC archive material, and BBC Radio 1 has held a competition asking people to use the footage in creative ways as backing visuals to music. The process of making the BBC’s archive material fully available may be a long one, but it could end up changing the way that people interact with the UK’s public service broadcaster.

News briefs:May 24, 2010

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Small aircraft crashes into building in New York City

Wednesday, October 11, 2006

A small aircraft struck an apartment building in New York this afternoon, killing the pilot and a flight instructor. Cory Lidle, a pitcher for the New York Yankees baseball team, was the registered owner of the aircraft and is believed to have been piloting it; his passport was found on the scene. The flight instructor was Tyler Stanger.

The plane, a Cirrus SR20 with registration number N929CD, hit the 26th floor of the Belaire Condominium, a 50 story brick luxury residential building on the Upper East Side at 524 East 72nd Street at York Avenue near the East River in Manhattan, New York City, of which the first 20 floors are a hospital. An eyewitness, present half a block from the building, reported that the plane hit the building, creating an enormous fireball, broke in two and crashed down onto on the street below. Authorities received a 911 call reporting a crash at 2:42 p.m. Eastern time.

New York City mayor Michael Bloomberg gave a press conference at approximately 5:20 p.m. Eastern time to report that the plane was occupied by a flight instructor and a student pilot, but as next-of-kin had not been able to be notified, the identities of the two people on the plane would not be released at this time.

Apartments were seen to be engulfed in flames. The FBI has stated that it was not an intentional attack. The New York area was grey and overcast during the time at crash; however, visibility was not hampered.

After an hour and a half, the fire was extinguished by the FDNY. According to CNN Television ten people have been injured, six of them firefighters. The New York Times, however, reports that eleven firefighters have been injured.

Initial reports suggested that a helicopter was involved, but the FAA has stated that it was a fixed-wing aircraft. CNN Television reported that it was a single-engine fixed-wing plane which left Teterboro Airport, a busy General Aviation airport in New Jersey, circled the Statue of Liberty was tracked on radar until it was lost near the 59th Street Bridge, that the plane may have been having fuel problems or fuel pump problems, and that it was “a pilot in distress.”

Wallace Sines, a source for CNN stated he believes the plane was a Cirrus SR-20 with an installed parachute, which did not deploy. The whole-plane parachute system may have saved the lives of the aircraft occupants had it been safely deployed clear of buildings, but the system is not designed to prevent the trauma associated with a plane impacting a builing. The Cirrus SR-20 was introduced in 2001 and the Cirrus line of 4-seater aircraft has since become one of the most purchased single engine aircraft in the world. The SR-20 does not normally carry an airline-style flight-data recorder, but some are equipped with GPS equipment which logs flight direction, speed and altitude.

The aircraft was owned by baseball player Cory Lidle. He was on board reported by AP. Lidle was killed, according to reports. CNN Television reported that the FBI stated he was at the controls as the only occupant of the plane, and that his passport was found on the ground below the accident.

A little over an hour and a half after the crash, the fire was extinguished after 39 fire units and over 100 fire fighters responded.

The White House has said that there has been no change in the terror threat alert level and that President Bush is being updated constantly.

La Guardia airport was temporarily restricted to no take offs from other airports, however by 4:10 Eastern Time, CNN Television reported that all New York-area airports were open.

CNN Television announced at 3:50 p.m. Eastern Time that as of a few minutes earlier, NORAD is putting fighter aircraft on patrol over certain major American cities as a precautionary measure similar to the actions taken after the 9/11 attacks as a “just in case” measure. It also reported that tomorrow is the 6th anniversary of the attack on the USS Cole in Aden, Yemen.

Moments after the crash, there was a drop in the New York Stock Exchange, however it quickly returned to normal after it was reported that the crash was an accident.

The New York Yankees organization confirmed the plane is registered to Cory Lidle of the New York Yankees, who was planning to fly from New York to Florida, and that some unnamed member of the Yankees organization was on the plane.

One eye-witness interviewed by the BBC stated: “I was wondering why the plane was doing acrobatics and then the next thing I knew was that it had crashed into the building.”She also added that the plane was a small, white, 4-seater winged aircraft and not a helicopter as many news agencies were reporting it to be.

CNN Television broadcast reports from eyewitnesses who reported:

  • A pilot who saw the impact stated, “It looked like a pilot who was desperately trying to get to an airport.”
  • Another eyewitness who saw the event from the Brooklyn-Queens Expressway, also referred to the incident as appearing as if the plane was “desperately trying to get to LaGuardia” and that as to whether he “clipped” the building, or struck it directly, that “he hit it dead on.”
  • “I heard a buzzing noise and then an explosion which looked like a mushroom cloud.”

E Cigarettes Vs Tobacco Dependence Study

August, 2015 byadmin

Electronic cigarettes (often referred to as “e-cigs”) have become increasingly popular over the past few years, but relatively few electronic cigarette scientific studies have been conducted to determine whether or not e-cigarettes are likely to produce a lower level of physical dependency than traditional cigarettes. A recent study spearheaded by Dr. Jonathan Foulds, Professor of Public Health Sciences at Penn State College of Medicine, has aimed to remedy this lack of publicly available scientific research by way of conducting an online survey of over 3,600 current and former smokers who now use e-cigarettes as an alternative nicotine delivery system. The study found that most current e-cigarette users actually feel “less addicted” to e-cigarettes than they did when using traditional tobacco cigarettes.

The survey indicated that although e-cigarette users may not have changed their overall amount of nicotine intake (24 tobacco cigarettes per day versus 24 e-cigarettes per day), they did experience a noticeable decrease in the amount of withdrawal symptoms that normally accompany smoking cessation, such as irritability and physical urges. Below are some other interesting data points that were mined from the study:

* E-cigarette users did not feel the need to vape right after they wake up in the morning, a sharp contrast to the typical early morning cigarette urge that most traditional tobacco users experience.

* Most e-cig users could now make it through an entire night without waking up in the middle of the night to satisfy a nicotine craving.

* Roughly two-thirds of the survey participants reported a major reduction in nicotine cravings once they switched to e-cigarettes.

* Only 25% of participants reported feeling any kind of anxiety, irritability or nervousness when they were not able to use their e-cigarette. This is a sharp contrast to the over 90% of traditional tobacco cigarette smokers who experienced these types of symptoms.

Although there has been quite a bit of speculation as to what exactly accounts for the difference in physical dependency symptoms between e-cigarettes and tobacco cigarettes, one of the most commonly accepted explanations is that e-cigarettes on average deliver less nicotine than traditional cigarettes. This is thought to help keep nicotine levels in users’ blood lower than what is typically experienced with tobacco cigarettes. The accessibility of e-cigarettes is also thought to be a factor; there is a certain amount of “craving buildup” that can happen when a person is not allowed to smoke in public facilities, which can sometimes lead to nicotine binges when they finally do get an opportunity to step outside and have a smoke. Since vaping is typically allowed in public places, users are better able to keep their nicotine cravings at bay.

Breathe Intelligent Cigarette provides the public with educational information regarding the Electronic Cigarette Industry. Please visit breatheic.com to learn more and to purchase electronic cigarette, vaping, and e-hookah products including wholesale distribution.

Canadian still faces public beheading in Saudi Arabia

Wednesday, May 20, 2009

A copy of a letter written to the Prime Minister of Canada Stephen Harper by a Canadian man facing the death penalty in Saudi Arabia has been obtained by The Canadian Press. In it, Mohamed Kohail pleads with the prime minister to utilise “every way possible to get me out of this situation.”

Kohail, 23, of Montreal, was sentenced on March 3, 2008 to be publicly executed following a confession for murder at a Saudi school. Kohail claims the confession was obtained under duress. The Saudi Supreme Court advised the lower court on April 9, 2009 to renounce the death penalty; however, the request was refused.

Munzer Al-Hiraki, 19, was killed in an after-school fight in January 2007, allegedly after Kohail’s brother, Sultan, insulted a girl. The brothers claim that the fight involved a large group of boys, and felt they were acting in self defense.

Sultan, 16 at the time, said that Mohamed came to his rescue with a friend, only to be greeted by a group armed with knives and clubs. Witnesses for the brothers say that Al-Hiraki had arrived at the school with carloads of friends to seek vengeance on Sultan.

“I was tortured to sign a confession. I was misinformed that I would be allowed out of custody the moment I signed it,” said Kohail.

In the letter, delivered by Canadian MP Deepak Obhrai last December, Kohail continues, “Mr. Harper, I have been in jail for two years now. I am imprisoned with hundreds [of] high-profile criminals in Saudi Arabia for a crime that I did not commit. I’ve lost my hair, two years of my life and see death coming to me closer every day.”

Kohail received 80 days to appeal the sentence. “There were nine hearings in total and only one time was the lawyer for Mohamed and his friend allowed in the courtroom; not even Mohamed’s father, Ali (was allowed in),” said a relative.

Harper is seeking clemency for the Kohail brothers. “It has to be worked within the confines of the Saudi law and it’s important to recognize that and work with the Saudi officials to come to a resolution,” said Foreign Affairs Minister Lawrence Cannon. According to the letter, the Canadian government began seeking clemency March of 2008.

If the court continues to uphold the death penalty, the only other option is the payment of dia, or blood money, in exchange for forgiveness — but Al-Hiraki’s family seeking CA$5 million.

Sultan Kohail is a juvenile who is out on bail awaiting to be tried in adult court on murder charges. The Convention on the Rights of the Child forbids execution of youths under the age of 18, which Saudi Arabia officials declare they comply with. However, the Convention also prohibits execution for crimes committed as juveniles no matter when the court sentences them.

Born in Palestine, the Kohail brothers moved to Canada in 2000, and became Canadian citizens in 2005. They moved to Jiddah in 2006.

In October 2007, Canadian Public Safety Minister Stockwell Day said, “We will not actively pursue bringing back to Canada murderers who have been tried in a democratic country that supports the rule of law.” Previously Canada consistently sought clemency from all foreign governments after the death penalty was abolished in Canada in 1976.

Since the beginning of 2009, 36 people have been executed in Saudi Arabia. 102 were executed in 2008 and 158 were executed in 2007.

Rattan Garden Furniture Defined And Described}

Rattan Garden Furniture Defined and Described

by

Rattan garden furniture is made from a very special climbing palm tree. This tree provides long strips of reeds used to make these exquisite furnishings. This is a time tested tradition that has spanned over a few hundred years.

The availability of specific rattan garden furniture sets change from time to time. A professional dealer can recommend some of the most current models of this type of outdoor or sunroom furnishing sets.

Rattan garden furniture designs are suitable for both indoor and outdoor garden areas. The cubed style furnishing sets add a contemporary touch to any garden space, or in the centre of a large flower or vegetable garden.

Cubed outdoor sets include extra-soft cushions for a perfect outdoor dining or viewing experience. Depending upon what set you order, some have matching tables available. This type of furnishing set looks nice placed in a conservatory as well.

Another very popular design of rattan garden furniture is the L-shaped style. In fact, it is one of the styles that is ordered most often and sometimes people are required to place their name on a waiting list to receive this rare style of furniture. The best advice is to place an order for these items at least a few weeks in advance.

When both pieces are available, the long L-shaped sofa comes with a coordinating coffee table. This particular furnishing set looks best in an indoor garden or enclosed patio. These items are not usually meant for outdoor use.

The current rattan garden furniture set which consists of three or four pieces is built for outdoor use. Depending upon availability, these sets usually include a small love set, two chairs, and at least one footstool.

The style and materials used to craft the cushions of these outdoor pieces may vary and some sets come with a matching coffee table. Sometimes similar sets come complete with a longer sofa, longer coffee table, seat pillows, foot rests, and accessories similar to the smaller sets.

Again, the availability of certain pieces of rattan garden furniture or whole outdoor or indoor sets varies. Sometimes you can pre-order ones that are temporarily not in stock as long as the manufacturing companies are still making them.

Quality materials are used when creating Rattan garden furniture, including; finely crafted clear glass table tops and coated aluminum frames. Additionally, all of these sets are UV and waterproof treated.

Sam Gabriel

Furniture Expert Rattan Garden Furniture Express-Furniture.co.uk Blog

Article Source:

eArticlesOnline.com}

Former Scottish Conservatives leader Annabel Goldie to stand down as MSP

Friday, June 26, 2015

Annabel Goldie, Scottish Conservative Party leader from 2005 to 2011, has announced she will stand down as an MSP at the next elections in 2016. Goldie, who has been an MSP for the West Scotland (previously West of Scotland) electoral region since the Scottish Parliament’s formation in 1999, said she intends to focus on her role in the House of Lords, where she has been a peer since 2013.File:Annabel Goldie.jpg

In a statement today, Goldie said leading the party was an “enormous honour” for her. She also said: “It has afforded me both satisfaction and pleasure to serve my constituents and to serve the parliament and I will look back with great happiness at my time as an MSP. I am grateful to friends and colleagues from all parties for their support. Sometimes we found common ground, sometimes we disagreed but never I hope with rancour nor disrespect. Politics is a rough trade but we have built a strong parliament in Scotland of which we can all be rightly proud.” She said because of Ruth Davidson, her successor as Scottish Conservative leader, the party is now “in fine fettle and stands a great chance of making real progress in the years ahead,” concluding by saying: “I look forward to continuing to work as part of that effort in the House of Lords in the years to come.”

Davidson responded to the news by calling Goldie an “unstoppable force”, adding: “She has been an inspiration to a whole generation of Scottish Conservatives, and she has been a tremendous mentor, support and friend to me. In Holyrood, she has fostered both affection and respect from all members – regardless of their political affiliation – and her retirement from the Scottish Parliament will leave an Annabel-sized hole which won’t ever quite be filled. She is unique.” Meanwhile, David Cameron, UK Conservative leader and UK Prime Minister, said: “Annabel is one of those rare breeds in Scottish politics, somebody known by her first name alone. When she was Scottish Conservative leader, I valued her sage advice. She has been a towering strength to our party in Scotland, a doughty debater in the TV studios and Scottish Parliament and has one of the sharpest wits around. I wish her a long and happy retirement after 17 years unstinting service at Holyrood – but look forward to seeing her on the red benches of the Lords for years to come.”

In Holyrood, she has fostered both affection and respect from all members – regardless of their political affiliation – and her retirement from the Scottish Parliament will leave an Annabel-sized hole which won’t ever quite be filled. She is unique.

Goldie, the Scottish Conservatives’ first ever female leader, was elected unopposed. She took up the role in the aftermath of David McLetchie’s resignation from the role in an expenses usage controversy and subsequent resignation of Brian Monteith from his Conservative whip role in the Scottish Parliament for briefing the media against him. Meanwhile, as Scottish Conservatives won 18 seats in the Scottish Parliament in 1999 and 2003, the party had been less successful in UK general elections in Scotland; Conservatives went up from zero out of a possible 72 UK MPs in Scotland in 1997 to one in 2001. This led to Goldie remarking in her inaugural speech in 2005 that: “The wheels are back on the wagon – and I’m the nag hitched up to tow it.” She also said: “The party is still way ahead of where it was in 1997. And my first task is to take it forward to 2007.” However, under Goldie’s leadership, the number of seats the Scottish Conservatives won in the Scottish Parliament slightly decreased from 18 in 2003 to 17 in 2007 and to 15 in 2011. At the same time, the number of Conservative MPs stood at one out of a possible 59 after the 2010 UK general election.

In the aforementioned 2005 speech, she also said the party could be trusted with devolution in Scotland, adding: “making devolution work better means real devolution: not the lumbering and cripplingly expensive array of government departments, government advisers, consultants, quangos, quasi-quangos and agencies with all their expensive appendages, but devolving down to people and their communities, their right to make their own decisions about their lives, how for example they procure healthcare and how they educate their children.” Goldie would go on to sit on the advisory board for the Smith Commission, which was set up to examine which further political powers should be devolved to Scotland following the 2014 Scottish independence referendum. More recently, Goldie supported a reduction in the voting age for Scottish Parliament elections from 18 to 16 in a vote earlier this month, commenting: “I think it is an opportunity for them to continue their high level of engagement in topical affairs that we saw with the independence referendum.”

Goldie, a member of the Salvation Army’s West of Scotland Advisory Board and a Church of Scotland elder, is not the only Scottish Conservative MSP intending to stand down in 2016. Mary Scanlon, Gavin Brown, Alex Fergusson and Nanette Milne all reportedly intend to leave the Scottish Parliament next year.

Wikinews interviews biologist Chris Simon about periodical cicadas

Wednesday, June 12, 2013

In May, periodical cicadas with 17 years life cycle emerged on the East Coast of the USA after underground development as juveniles since 1996. Researchers and scientists worked to map and study the rare wave, and the locals prepared for the noisy event. First recorded in 1666, the Magicicada septendecim species recently emerged in 1979, 1996, this year, with a next wave due in 2030.

This week, Wikinews interviewed Chris Simon, an ecology and evolutionary biologist at University of Connecticut, about the cicadas.

((Wikinews)) What caused your initial interest in periodical cicadas?

Chris Simon: As an undergraduate student, I was interested in the formation of species so when I went to graduate school I looked for a study organism that was likely to be in the process of forming new species. I chose periodical cicadas because they are broken up into reproductively isolated broods (or year classes). Reproductive isolation leads to speciation so I planned to study biochemical differences among the broods.

((WN)) You study the emergence of the periodical cicadas. What do you study? What observations are you making?

CS: We record exactly where each cicada population emerges (using GPS automated mapping and crowd sourcing). We record the presence or absence of each of the three morphologically distinct species groups of periodical cicadas (Decim group, Cassini group, and Decula group). We collect specimens for DNA analysis. We look for cicadas coming up one and four years early and late. We dig up cicada nymphs and monitor their growth rates.

((WN)) What equipment do you use?

CS: Nets, shovels, automated GPS recorders, cameras, laptop computers, automated DNA sequencers.

((WN)) Do you study the periodical cicadas with anyone else? What is their role?

CS: Yes, there are a large number of people studying periodical cicadas in my lab and in other labs. My lab is made up of Research Scientists, Postdoctoral Researchers, a technician, graduate students, and undergraduates. Research Scientist John Cooley is the leader of the GPS mapping project; he invented the automated GPS recorder; he built our crowd-sourcing website, and he is instrumental in public outreach. Postdoctoral research David Marshall also participates in the mapping project and leads the part of the research related to the mapping of stragglers. John and Dave and Technician Kathy Hill all study periodical cicada mating behavior and conduct mating and hybridization experiments. One of my graduate students Beth Wade has participated in the nymph collections and will soon start genetic work involving genome wide association mapping designed to locate genes related to life cycle. My graduate student Russ Meister is studying the genes of the bacterial endosymbionts of cicadas. My current undergraduate honors student Erin Dwyer is also studying the development of Magicicada nymphs and is helping to design a lab exercise for college students around the eastern US to do the same. Many of my past undergraduate students have studied the biochemical genetics and development of periodical cicadas. See the Simon Lab website.
CS: We are collaborating with Teiji Sota at the University Kyoto and Jin Yoshimura at Shizuoka University in Japan. They are studying the phylogeography of Magicicada. We are collaborating with John McCutcheon of the University of Montana who is studying the endosymbiont genomes.
CS: We are also collaborating with ecologists Rick Karban and Louie Yang, both professors at UC Davis who have an interest in cicada population dynamics and nutrient cycling in the ecosystem.

((WN)) You studied the periodical cicadas in 1979 and 1996 too. What changes with time?

CS: I have studied periodical cicadas since I was a student back in 1974. What changes with time is increased human development constantly shrinking the patch size of cicada populations.

((WN)) What are your thoughts on the long life span of the periodical cicadas? Why could it be so? What advantages and what disadvantages does it have?

CS: Most or all cicadas have long life cycles compared to your typical annual insect. Examples have been found of two-year to 9-year cycles in different species. Periodical cicadas evolved an even-longer life cycle and I think that part of this relates to the evolution of their synchronized life cycles and peculiar safety-in-numbers strategy for survival. To become synchronized, periodical cicadas had to evolve an exact length life cycle and all adults would have to appear in the same year. Because the nymphs grow at different rates underground, a longer life cycle and a way of counting years must have evolved so that the individuals that get to the last nymphal (underground juvenile) stage first would wait long enough for all other individuals in the population to become ready to emerge.

((WN)) News reports mention this is ‘Brood II’ of the periodical cicadas. What are the distinctive features of this specific species and what is its full scientific name?

CS: The same species exist in multiple broods. No species is restricted to Brood II. The three species present in Brood II are: Magicicada septendecim, M. cassini, and M. septendecula. These same three species are found in every 17-year brood (except the farthest north which only has M. septendecim).

((WN)) At what depth do the cicadas juveniles live underground?

CS: Most live within the top foot of soil but some have been found deeper. We do not know if they go deeper in winter. We need to do much more digging to understand the nymphs.

((WN)) How do people prepare for the cicada emergence?

CS: Of course various people prepare in different ways. Ideally, everyone prepares by studying information available on the web (especially on our websites Magicicada Central and Magicicada.org).

((WN)) Do cicadas affect transport in the local area?

CS: No, not really. Occasionally individuals can be seeing flying across highways and sometimes they smash into cars.

((WN)) Do cicadas usually stay outside or do they also invade houses too?

CS: They stay outside. One might accidentally fly in through an open window but that would be rare.

((WN)) What do the cicadas eat?

CS: Cicadas suck xylem fluid (the watery fluid coming up from the roots of plants) in deciduous forest trees and herbs. Essential amino acids in the cicada diet are supplied by their bacterial endosymbionts. There are two species of endosymbionts. One makes 8 essential amino acids and one makes two essential amino acids.

((WN)) Do cicadas damage crops or city vegetation? What damage?

CS: Cicadas do not chew leave so they do not damage crops like other insects. They can inflict some damage by their egg laying. Cicadas lay eggs in pencil-sized tree branches. If there are not enough branches available, too many female cicadas may lay eggs in a single branch weakening it and making it susceptible to breakage by wind. This can sometimes cause damage in fruit orchards. If the branches break, the eggs die so this behavior is selected against by natural selection.

((WN)) Thank you.

CS: You’re welcome. I am happy to have this opportunity to communicate with your readers!

Study shows that aspirin might do more harm than good

Monday, August 31, 2009

A study performed at Edinburgh University, Scotland has shown that aspirin may do more harm to your health than good.

The research at the university in Scotland was to assess the effects of taking aspirin on a daily basis where no prior or existing medical conditions would merit its prescription. The researchers monitored 3,350 patients aged between 50–75, who were thought to be at risk of heart disease, but did not show any significant symptoms at the start of the study. Over an eight-year time period, 181 of those people taking aspirin had heart attacks or strokes.

More than 3,000 men aged 50–75 were randomly assigned to receive a daily dose of aspirin or a placebo pill and were watched over the eight year time period. There were 34 major bleeds in people taking aspirin, or 2%, in comparison to 1.2% of those who took the placebo. The Aspirin for Asymptomatic Atherosclerosis (AAA) have found that the routine use of aspirin does not prevent vascular disease or conditions and the use of it “could not be supported.”

Peter Weissberg, a professor at the British Heart Foundation, the company which was partly responsible in funding for the trials said, “we know that patients with symptoms of artery disease, such as angina, heart attack or stroke, can reduce their risk of further problems by taking a small dose of aspirin each day. The findings of this study agree with our current advice that people who do not have symptomatic or diagnosed artery or heart disease should not take aspirin, because the risks of bleeding may outweigh the benefits. Because it’s been around for a long time, people think, ‘It must be safe and it can’t do any harm’. They are taking it ‘just in case’ but it’s much more dangerous than some other drugs that people get concerned about, like statins.”

Professor Gerry Fowkes presented the research from the University of Edinburgh at the European Society of Cardiology congress in Barcelona, Spain, which was attended by more than 30,000 heart specialists.

“Our research suggests that aspirin should not be prescribed to the general population, although it does have benefits for people with established heart disease or other conditions,” stated Fowkes.