July 22 2002The bee colonies in the Arcosanti Gar

first_imgJuly 22, 2002The bee colonies in the Arcosanti Gardens have been busy. The very light and tasty honey is harvested by putting the trays into a centrifugal extractor. [Photo & Text: SA] Bee-keeper Tom Dobuovitch [right] is operating the hand-crank on the extractor. His helper is scraping the smoke-stunned bees from a tray before the tray gets inserted into the extractor. This is a very compact and efficient operation right on the back of Tom’s pick-up truck. [Photo & Text: SA] The honey harvest happened very timely. Or maybe this bear smelled it from far away. The bear has been an evening visitor in camp for a few days now and on his first visits took apart some of the bee colonies. Tom and resident Gregor Knauer had to build a sturdy new fence around the hives. [Photo: Stephen Ramsey & Text: SA]last_img read more

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first_imgShareTweet The Class A, B and C Drugs seized by police in the Waterside area on FridayA 44-year-old man has been arrested on suspicion of a number of drugs offences under the 1971 Misuse of Drugs Act.The arrest was made after a quantity of suspected class A, B and C drugs were seized in Derry on Friday, October 6 by  PSNI Foyle’s Waterside Critical Neighbourhood Team.The drugs were uncovered during what police have described as a ‘proactive search’ at a property in the Sheskin Gardens area, close to the Dungiven Road in the Waterside. Dungiven RoadMAN ARRESTED OVER ‘PROACTIVE’ DRUGS BUST IN DERRYPSNISHESKIN GARDENSWatersidecenter_img The arrested male remains in custody at Strand Road PSNI station assisting police with their enquiries.MAN ARRESTED OVER ‘PROACTIVE’ DRUGS BUST IN DERRY was last modified: October 9th, 2017 by John2John2 Tags:last_img read more

Novel sensor monitors beating heart cells with minimal disruption

first_img Source:http://www.u-tokyo.ac.jp/ Reviewed by James Ives, M.Psych. (Editor)Jan 2 2019For the first time, engineers have demonstrated an electronic device to closely monitor beating heart cells without affecting their behavior. A collaboration between the University of Tokyo, Tokyo Women’s Medical University and RIKEN in Japan produced a functional sample of heart cells with a soft nanomesh sensor in direct contact with the tissue. This device could aid study of other cells, organs and medicines. It also paves the way for future embedded medical devices.Inside each of us beats a life-sustaining heart. Unfortunately, the organ is not always perfect and sometimes goes wrong. One way or another research on the heart is fundamentally important to us all. So when Sunghoon Lee, a researcher in Professor Takao Someya’s group at the University of Tokyo, came up with the idea for an ultrasoft electronic sensor that could monitor functioning cells, his team jumped at the chance to use this sensor to study heart cells, or cardiomyocytes, as they beat.”When researchers study cardiomyocytes in action they culture them on hard petri dishes and attach rigid sensor probes. These impede the cells’ natural tendency to move as the sample beats, so observations do not reflect reality well,” said Lee. “Our nanomesh sensor frees researchers to study cardiomyocytes and other cell cultures in a way more faithful to how they are in nature. The key is to use the sensor in conjunction with a flexible substrate, or base, for the cells to grow on.”For this research, collaborators from Tokyo Women’s Medical University supplied a healthy culture of cardiomyocytes derived from human stem cells. The base for the culture was a very soft material called fibrin gel. Lee placed the nanomesh sensor on top of the cell culture in a complex process, which involved removing and adding liquid medium at the proper times. This was important to correctly orient the nanomesh sensor.Related StoriesImplanted device uses microcurrent to exercise heart muscle in cardiomyopathy patientsResearch opens possibility of developing single-dose gene therapy for inherited arrhythmiasHeart disease is still the number 1 killer in Australia, according to latest figures”The fine mesh sensor is difficult to place perfectly. This reflects the delicate touch necessary to fabricate it in the first place,” continued Lee. “The polyurethane strands which underlie the entire mesh sensor are 10 times thinner than a human hair. It took a lot of practice and pushed my patience to its limit, but eventually I made some working prototypes.”To make the sensors, first a process called electro-spinning extrudes ultrafine polyurethane strands into a flat sheet, similar to how some common 3D printers work. This spiderweb like sheet is then coated in parylene, a type of plastic, to strengthen it. The parylene on certain sections of the mesh is removed by a dry etching process with a stencil. Gold is then applied to these areas to make the sensor probes and communication wires. Additional parylene isolates the probes so their signals do not interfere with one another.With three probes, the sensor reads voltage present at three locations. The readout appears familiar to anyone who’s watched a hospital drama as it’s essentially a cardiogram. Thanks to the multiple probes, researchers can see propagation of signals, which result from and trigger the cells to beat. These signals are known as an action or field potential and are extremely important when assessing the effect of drugs on the heart.”Drug samples need to get to the cell sample and a solid sensor would either poorly distribute the drug or prevent it reaching the sample altogether. So the porous nature of the nanomesh sensor was intentional and a driving force behind the whole idea,” said Lee. “Whether it’s for drug research, heart monitors or to reduce animal testing, I can’t wait to see this device produced and used in the field. I still get a powerful feeling when I see the close-up images of those golden threads.”last_img read more

SDSU study finds ways to reduce secondhand smoke in homes with children

first_img Source:https://www.sdsu.edu/ Reviewed by Alina Shrourou, B.Sc. (Editor)Mar 5 2019A San Diego State University study found some parents who smoke at home can be nudged outdoors with a combination of coaching, lights and sound.”Project Fresh Air” installed equipment in nearly 300 homes that flashed a warning light and emitted a tone whenever air monitors detected secondhand smoke. The result was an apparent near-20 percent reduction in smoking and other activity that set off the alerts.Mel Hovell, who led the study at SDSU’s Center for Behavioral Epidemiology and Community Health, said his goal is to protect children from the harm associated with secondhand smoke–including asthma, bronchitis and ear infections.Related StoriesRepurposing a heart drug could increase survival rate of children with ependymomaRevolutionary gene replacement surgery restores vision in patients with retinal degenerationChaos in the house and asthma in children – the connection”If they’re living in a home that’s contaminated by tobacco, they’re being damaged every single day,” he said. “If they’re breathing active smoke it’s even worse.”The study was the first to combine motivational coaching on smoking with an immediate form of feedback, and follows decades of previous research by Hovell and others at SDSU on secondhand smoke and the residue from thirdhand smoke left on carpets, furniture and other household materials.Families throughout San Diego County were invited to participate. All had at least one child under 14 (the average age was 4). Researchers provided up to four sessions of coaching aimed at encouraging smokers to take their habit outside.When they didn’t, the smoke they produced caused a light on the installed home device to switch to yellow and the equipment to emit a low-frequency tone: three quick pulses. Continued exposure would lead to an even louder tone and a red light. The goal, Hovell said, was to reduce smoking inside the home by delivering almost immediate feedback.Collecting dataHovell’s team left the equipment in the homes for up to three months, including a one-month baseline period prior to the lights and sounds. They then crunched the data from a combined 27,443 days of measurement and compared them to a control group.The figures showed a 19.35 percent reduction in the air “particle events” that triggered the alarms, compared to the period before the intervention efforts. In the control homes, particle events actually increased slightly.”Smoking outdoors is relatively easy to do,” said Hovell. “Our job is to move them outside.”last_img read more

UK firms to reveal bossstaff pay gaps under draft law

first_img Citation: UK firms to reveal boss-staff pay gaps under draft law (2018, June 11) retrieved 18 July 2019 from https://phys.org/news/2018-06-uk-firms-reveal-boss-staff-gaps.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. © 2018 AFP Companies listed in Britain will be required to reveal the gap between the salaries of their chief executives and employees under draft legislation introduced in parliament on Monday. All public companies with more than 250 employees will have to disclose and explain every year their “pay ratios” under legislation planned to come into effect from January 2019.”Most of the UK’s largest companies get their business practices right but we understand the anger of workers and shareholders when bosses’ pay is out of step with company performance,” Business Secretary Greg Clark said in a statement.”Requiring large companies to publish their pay gaps will build on that reputation by improving transparency and boosting accountability at the highest levels, while helping build a fairer economy that works for everyone,” he said.The move comes after years of shareholder and public outrage over the pay for top executives, including at companies that have performed poorly. There has been a series of shareholder rebellions over pay at company annual general meetings this year.Frances O’Grady, leader of Britain’s Trades Union Congress, said: “Publishing and justifying pay ratios is a first step, but more is needed.”Fat-cat bosses are masters of self-justification and shrugging off public outcry. New rules are needed to make sure they change,” she said, calling for worker representatives to be included on boardroom pay committees for added fairness.Rebecca Long Bailey, business spokeswoman for the main opposition Labour Party, said the proposals were “half-baked” and “do nothing to tackle the entrenched inequality”.The government earlier this year implemented legislation forcing all UK companies with 250 or more employees to publish details of the salary difference between male and female employees.center_img All companies with more than 250 employees will have to disclose and explain their “pay ratios” London firm revamps pay by letting staff set salaries Explore furtherlast_img read more

Google joins tech move east to invest 1 bn in New York

first_img Report: Google planning big New York City expansion This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. © 2018 AFP The move by Google comes following Amazon’s announcement of new headquarters sites in New York and suburban Washington DC worth some $5 billion, and Apple’s $1 billion expansion to Texas and other areas.Google parent Alphabet’s chief financial officer Ruth Porat said it would lease large office buildings in lower Manhattan, which will become the centerpiece of a campus of more than 1.7 million square feet (160,000 square meters).The new campus, which should be operational starting in 2020, will be known as Google Hudson Square and “will be the primary location for our New York-based Global Business Organization,” Porat wrote in a blog post.”New York City continues to be a great source of diverse, world-class talent—that’s what brought Google to the city in 2000 and that’s what keeps us here,” she said.Alphabet earlier this year said it was buying the Manhattan Chelsea Market for $2.4 billion, and planned to lease space at Pier 57 on the Hudson river. The company currently employs some 7,000 people in New York.”With these most recent investments in Google Chelsea and Google Hudson Square, we will have the capacity to more than double the number of Googlers in New York over the next 10 years,” Porat said. She said the company’s “investment in New York is a huge part of our commitment to grow and invest in US facilities, offices and jobs.”The new site is a former industrial area adjacent to the Greenwich Village and Soho districts.The expansion would make California-based Alphabet one of the city’s largest commercial tenants, The Wall Street Journal reported.Finding new workersAlphabet, Amazon and Apple are three of the world’s most valuable corporations and have been outgrowing their home bases even with new headquarters building.Google this month released an updated plan for expanding its Mountain View, California, headquarters to create a new village-type campus with more than 6,000 new homes, some of which would be available to low-income residents.Both Google and Apple handled their expansion plans quietly, while Amazon asked for municipalities across North American for proposals, prompting critics to call it a “Hunger Games” contest.All three companies have been struggling to attract workers with technology skills, and that appears to have been a key factor in the three expansion moves.The massive growth in the tech sector has however passed over much of America’s industrial heartland, creating economic and social rifts.Porat said the latest investment “is a huge part of our commitment to grow and invest in US facilities, offices and job,” and added that “we’re growing faster outside the (San Francisco) Bay Area than within it, and this year opened new offices and data centers in locations like Detroit, Boulder, Los Angeles, Tennessee and Alabama.” Citation: Google joins tech move east, to invest $1 bn in New York campus (2018, December 17) retrieved 17 July 2019 from https://phys.org/news/2018-12-google-parent-alphabet-bn-nyc.html Google became the latest US tech giant to announce a major expansion plan, unveiling a $1 billion investment Monday to create a new campus that could double its New York City workforce to 14,000. Explore furtherlast_img read more