Source: http://news.feedzilla.com/en_us/stories/politics/top-stories/245318235?client_source=feed&format=rss
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Monday, September 3, 2012
Research reveals contrasting consequences of a warmer Earth
ScienceDaily (Sep. 3, 2012) ? A new study, by scientists from the Universities of York, Glasgow and Leeds, involving analysis of fossil and geological records going back 540 million years, suggests that biodiversity on Earth generally increases as the planet warms.
But the research says that the increase in biodiversity depends on the evolution of new species over millions of years, and is normally accompanied by extinctions of existing species. The researchers suggest that present trends of increasing temperature are unlikely to boost global biodiversity in the short term because of the long timescales necessary for new forms to evolve. Instead, the speed of current change is expected to cause diversity loss.
The study which is published in Proceedings of the National Academy of Sciences (PNAS) says that while warm periods in the geological past experienced increased extinctions, they also promoted the origination of new species, increasing overall biodiversity.
The new research is a refinement of an earlier study that analysed biodiversity over the same time interval, but with a less sophisticated data set, and concluded that a warming climate led to drops in overall diversity. Using the improved data that are now available, the researchers re-examined patterns of marine invertebrate biodiversity over the last 540 million years.
Lead author, Dr Peter Mayhew, of the Department of Biology at York, said: "The improved data give us a more secure picture of the impact of warmer temperatures on marine biodiversity and they show that, as before, there is more extinction and origination in warm geological periods. But, overall, warm climates seem to boost biodiversity in the very long run, rather than reducing it."
Dr Alistair McGowan, of the School of Geographical and Earth Sciences at the University of Glasgow said: "The previous findings always seemed paradoxical. Ecological studies show that species richness consistently increases towards the Equator, where it is warm, yet the relationship between biodiversity and temperature through time appeared to be the opposite. Our new results reverse these conclusions and bring them into line with the ecological pattern."
Professor Tim Benton, of the Faculty of Biological Sciences at the University of Leeds, added: "Science progresses by constantly re-examining conclusions in the light of better data. Our results seem to show that temperature improves biodiversity through time as well as across space. However, they do not suggest that current global warming is good for existing species. Increases in global diversity take millions of years, and in the meantime we expect extinctions to occur."
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Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.
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7 Keys To True Happiness | Planetnaveen - Personal Development ...
Happiness is not something you postpone for the future; it is something you design for the present ? Jim Rohn
One of the biggest mistakes that people make is postponing happiness.? Being happy is something that you can decide right here, right now, this instant.
It really is a choice and a decision that you can make.? Life really is too short to live any other way.
Below are 7 keys to happiness that will help to make this life changing decision easier for you:
1.? Be Content
Too many are wrapped up with what they don?t have.Instead, it is better to focus on what you do have and can be thankful for.
For example, someone will think that once they get their dream home they will be happy. Or perhaps when they get married then they will be truly happy.
Accomplishments provide only temporary happiness and can be somewhat like a drug. Learn to be content and count your blessings. You will be amazed at what you discover!
2.? Focus On Self Improvement
It is not difficult to see that the world today is filled with negativity. Therefore it is vital that you fill your mind with positive messages.
In my own personal experience I have found that information relating to self help has really changed my life for the better. All it takes is a few minutes a day.
It could be when you drive to work, when you are exercising or even when you are falling asleep. Good material will give you a feeling of peace, joy and hope.
3.? Follow Your Dreams
Nothing can make you more unhappy than doing something that you don?t really like. Of course, we must strike a balance between reality and fantasy so it is up to you to decide what you can and cannot tolerate.
It could be your job, where you are living, or perhaps even a relationship. If you don?t like something, change it!
Doing so will help to make you a lot more happy and you will be that much closer to discovering your purpose in life.
4.? Love The Journey
While it is important to have goals you shouldn?t wait until you achieve them to be happy. Learn to stop and smell the roses. In other words, love the journey!
No matter where we are in life there is always something that we have yet to achieve. That is what keeps us not only busy but growing too.
Instead of being frustrated, anxious and impatient just learn to chill and relax. Being uptight will not get you any closer to getting what you want.
5.? Don?t Take Yourself Too Seriously
Sometimes it is easy to worry too much about what other people think of you. Most of the time we are just being paranoid and wasting energy on the wrong things.
While we might think we are the center of everyone?s universe that is simply not the truth. They have their own issues to deal with.
Don?t be afraid to be yourself. You will be much happier that way!
6.? Stop Worrying
On a similar note it really pays to stop worrying unnecessarily and let the chips fall where they may. Although it does take a lot of practice you shouldn?t really worry about what you can?t change.
Excessive worrying is not only bad for your health, it can potentially destroy your chance at lasting happiness. The funny thing is, most
things we worry about never actually happen!
Just learn to go with the flow and simply enjoy life. When you catch yourself worrying excessively, think about something positive.
7.? Do The Best That You Can
Sometimes we can rob ourselves of happiness if we consciously know we are selling ourselves short. If you do the best that you can and live up to your full potential you will feel a lot more fulfilled and satisfied with yourself.
Doing the best you can will create inner peace and joy knowing you gave it your all. It will help you to live life to the fullest.
Putting these 7 keys into practice will help create lasting happiness in your life. Remember, happiness is a choice you can make right now!
About the author: Randy McLean is the sole creator of Self Improvement Journey. He has a passion for health and fitness, self improvement and entrepreneurship.? His hobbies include his wife, music, books, surfing the internet, watching movies and playing video games.? Machine operator by day and entrepreneur by night, Randy is quietly building his part-time fortune in order to escape the rat race and live life on his own terms.? You can read more positive, uplifting posts at: http://www.SelfImprovementJourney.com
If you liked this post, say thanks by sharing it
Source: http://www.planetnaveen.com/2012/09/7-keys-to-true-happiness/
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Sunday, September 2, 2012
News10 Game of the Week Preview: Grant and Nevada Union renew rivalry
SACRAMENTO - A high school football tradition that began in the 70's will renew itself when Nevada Union faces the Grant Pacers Friday night.
"This goes back when my uncles played," said Pacers wide reciever Trayvon Henderson. "They win, then lose, it is a rivalry that goes back and forth."
"I was watching it as a little kid," added Miners linebacker Tanner Vallejo. "Now I am glad I get to play in it."
For many, the rivalry was about more than just football. It was a way to bring two different communities together who shared a winning tradition on the grid iron.
"It's been too long," said Nevada Union Head Coach Dave Humphers. "It has been a great experience for the kids on both sides."
"This was not about a football game," said Grant Head Coach Mike Alberghini. "This is about community pride. Kids grew up thinking this is the game I want to play in."
The Nevada Union Miners will face the Grant Pacers Friday night the in the News10 Game of the Week, kick off is at 7:00 p.m. from Grant High School.
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message that was received in the ? cverrws
Sometimes referred to as mailbots, an autoresponder is an integral part of any online business experience, irrespective of your field of expertise. Not only are they of value as far as promotional tools are concerned, the fact that they can respond automatically to emails can save you a phenomenal amount of time and money.
While there are variations between one autoresponder and the next, in principle they all work the same. By this I mean that the primary function of an autoresponder is to send out messages in response to messages received. Of course, depending on factors such as the script or email address, an autoresponder will send out a suitable reply with relation to the message that was received in the first place.
Admittedly,louis vuitton outlet, as mentioned earlier, autoresponders can be extremely beneficial but unfortunately there?s a downside as well, being that they?re often extensively abused. Yes, being able to use them for automating daily requirements is a great feature but for many,mac cosmetic sale, crossing paths with an autoresponder can be catastrophic.
An example of this would be when one communicates with a website which also uses an autoresponder, such as when you submit your website to search engines or directories. When this happens, their autoresponder sends a message to you and in turn, your autoresponder will send a reply. What happens then is that the two mailbots will simply continue replying to each other. Need I say anymore?
Additionally, whenever one signs up to receive newsletters, emails or even ezines, you?re required to provide an email address and if you provide the address of your autoresponder rather than a valid email address, you can be rest assured that your subscription will be canceled. Who could blame any group for getting annoyed when every time they send out the newsletter you requested, they get automated replies? After all, imagine if all their subscribers used autoresponder addresses. They?d be faced with thousands upon thousands of automated replies. Whatever you do, don?t use mailbots for subscriptions to anything.
As has already been mentioned, autoresponders are great tools but they certainly do have drawbacks. When one considers the unnecessary inconvenience caused to subscription groups,nike shox, it?s hardly surprising that many of them will cancel your subscription if you use an autoresponder. Additionally, the fact that those using mailbots most often don?t have the same ?from? or ?reply? address as they originally had, can make for a very time consuming experience when a group has to try and locate your correct address.
If like so many others, you feel the need to use an autoresponder, please be considerate and never use it when you sign up for one subscription or another. In responsible hands, an auto responder can make an extraordinary difference to your online business in terms of time, money and of course effort. Best of all,nike shox torch, they are incredibly easy to configure and of course to use. Be responsible in your actions and your autoresponder will afford you a great advantage throughout your internet experience.
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Source: http://cverrws.blog.galeon.com/2012/09/01/message-that-was-received-in-the/
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South Africa Miners' Murder Charges Provisionally Withdrawn: Prosecutor
By Ed Stoddard
JOHANNESBURG, Sept 2 (Reuters) - South African prosecutors provisionally withdrew murder charges on Sunday against 270 miners who had been accused of killing 34 striking colleagues shot dead by police, but said they could be recharged when investigations are complete.
Public anger had been mounting at the charges, made under an apartheid-era law under which the miners were deemed to have had a "common purpose" in the murder of their co-workers.
The police killing of the strikers last month at the Marikana mine, run by platinum producer Lonmin , was the worst such security incident since the end of white rule in 1994, and recalled scenes of state brutality from that era.
"Final charges will only be made once all investigations have been completed. The murder charges against the current 270 suspects will be formally withdrawn provisionally in court," Nomgcobo Jiba, the acting national director of prosecutions, said in a televised news conference.
The miners will be released from prison starting this week.
In all, 44 people were killed in the wave of violence stemming from an illegal strike and union turf war.
Top members of the ruling African National Congress had also expressed dismay at the charges as a public backlash gathered.
"We are all surprised and confused by the National Prosecuting Authority's legal strategy," the ANC's chief whip in parliament said on Friday.
ZUMA UNDER PRESSURE
The ANC, whose members were gunned down by police at protest rallies and targeted with draconian laws before Nelson Mandela's election as the country's first black president, has been criticised for using similar tactics now that it is in power.
The current president, Jacob Zuma, seeking re-election in December as the leader of South Africa's dominant party, has seen his support erode over the killings and the state's handling of the matter.
His enemies say he is more interested in protecting the industry and powerful labour groups than the miners.
Talks to end the strike at Lonmin, the world's third largest platinum producer, were set to resume on Monday after weekend funerals for the slain workers.
Lonmin's mines have been idle for three weeks, and labour strife has spread from the platinum sector to gold, where a quarter of the 46,000-strong workforce at Gold Fields have staged a wildcat strike, further unsettling investors.
In the case of Lonmin, the strike and violence stem from a turf struggle for members between the dominant National Union of Mineworkers (NUM) and the small but militant Association of Mineworkers and Construction Union (AMCU), which has flared across the platinum belt.
The stakes are high as South Africa sits on about 80 percent of the world's known reserves of the precious metal, used to make catalytic converters for automobiles.
The price of platinum has been depressed by weak demand, which has put pressure on industry margins at a time when power and labour costs have been rising rapidly. The recent strife has pushed the price up by about 8 percent.
Earlier on HuffPost:
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Source: http://www.huffingtonpost.com/2012/09/02/south-africa-miners-murder-charges_n_1850125.html
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Saturday, September 1, 2012
A millimeter-scale, wirelessly powered cardiac device
ScienceDaily (Aug. 31, 2012) ? A team of engineers at Stanford has demonstrated the feasibility of a super-small, implantable cardiac device that gets its power not from batteries, but from radio waves transmitted from outside the body. The implanted device is contained in a cube just eight-tenths of a millimeter in radius. It could fit on the head of pin.
The findings were published in the journal Applied Physics Letters. In their paper, the researchers demonstrated wireless power transfer to a millimeter-sized device implanted five centimeters inside the chest on the surface of the heart -- a depth once thought out of reach for wireless power transmission.
The paper's senior author was Ada Poon, a professor of electrical engineering at Stanford. Sanghoek Kim and John Ho, both doctoral candidates in Poon's lab, were first authors.
The engineers say the research is a major step toward a day when all implants are driven wirelessly. Beyond the heart, they believe such devices might include swallowable endoscopes -- so-called "pillcams" that travel the digestive tract -- permanent pacemakers and precision brain stimulators; virtually any medical applications where device size and power matter.
A revolution in the body
Implantable medical devices in the human body have revolutionized medicine. Hundreds of thousands if not millions of pacemakers, cochlear implants and drug pumps are today helping people live relatively normal lives, but these devices are not without engineering challenges.
First off, they require power, which means batteries, and batteries are bulky. In a device like a pacemaker, the battery alone accounts for as much as half the volume of the device it drives. Second, batteries have finite lives. New surgery is needed when they wane.
"Wireless power solves both challenges," said Poon.
Last year, Poon made headlines when she demonstrated a wirelessly powered, self-propelled device capable of swimming through the bloodstream. To get there she needed to overturn some long-held assumptions about delivery of wireless power through the human body.
Her device works by a combination inductive and radiative transmission of power. Both are types of electromagnetic transfer in which a transmitter sends radio waves to a coil of wire inside the body. The radio waves produce an electrical current in the coil sufficient to operate a small device.
There is an indirect relationship between the frequency of the transmitted radio waves and the size of the receive antenna. That is, to deliver a desired level of power, lower frequency waves require bigger coils. Higher frequency waves can work with smaller coils.
"For implantable medical devices, therefore, the goal is a high-frequency transmitter and a small receiver, but there is one big hurdle," explained Kim.
Ignoring consensus
Existing mathematical models have held that high frequency radio waves do not penetrate far enough into human tissue, necessitating the use of low-frequency transmitters and large antennas -- too large to be practical for implantable devices.
Ignoring the consensus, Poon proved the models wrong. Human tissue dissipates electric fields quickly, it is true, but radio waves can travel in a different way -- as alternating waves of electric and magnetic fields. With the correct equations in hand, she discovered that high-frequency signals travel much deeper than anyone suspected.
"In fact, to achieve greater power efficiency, it is actually advantageous that human tissue is a very poor electrical conductor," said Kim. "If it were a good conductor, it would absorb energy, create heating and prevent sufficient power from reaching the implant."
According to their revised models, the researchers found that the maximum power transfer through human tissue occurs at about 1.7 billion cycles per second.
"In this high-frequency range, we can increase power transfer by about ten times over earlier devices," said Ho, who honed the mathematical models.
The discovery meant that the team could shrink the receive antenna by a factor of ten as well, to a scale that makes wireless implantable devices feasible. At that the optimal frequency, a millimeter-radius coil is capable of harvesting more than 50 microwatts of power, well in excess of the needs of a recently demonstrated eight-microwatt pacemaker.
Additional challenges
With the dimensional challenges solved, the team found themselves bound in by other engineering constraints. First, electronic medical devices must meet stringent health standards established by the IEEE, particularly with regard to tissue heating. Second, the team found that receive and transmit antennas had to be optimally oriented to achieve maximum efficiency. Differences in alignment of just a few degrees could produce troubling drops in power.
"This can't happen medical devices," said Poon. "As the human heart and body are in constant motion, solving this issue was critical to the success of our research."
The team responded by designing an innovative slotted transmit antenna structure. It resembles a swastika, but delivers consistent power efficiency regardless of orientation of the two antennas.
The new design serves additionally to focus the radio waves precisely at the point inside the body where the implanted device rests on the surface of the heart, increasing the electric field where it is needed most, but canceling it elsewhere. This helps reduce overall tissue heating to levels well within the IEEE standards. Poon has applied for a patent for the antenna structure.
This research was made possible by funding from the C2S2 Focus Center, one of six research centers funded under the Focus Center Research Program (FCRP), a Semiconductor Research Corporation entity. Lisa Chen also contributed to this study.
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The above story is reprinted from materials provided by Stanford School of Engineering. The original article was written by Andrew Myers, associate director of communications for the Stanford University School of Engineering.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.
Journal Reference:
- Sanghoek Kim, John S. Ho, Lisa Y. Chen, Ada S. Y. Poon. Wireless power transfer to a cardiac implant. Applied Physics Letters, 2012; 101 (7): 073701 DOI: 10.1063/1.4745600
Note: If no author is given, the source is cited instead.
Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.
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On-Farm Energy Audits: Putting the Money Back in Your Pocket
Heating and Ventilation Featured Articles
Wednesday, August 29, 2012
An energy audit helps producers to understand how energy is used on thier farm and identifies how the operation can become more energy-efficient, according to Tonya Grunt, SEP Livestock Assistant with the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) in that organisation's latest newsletter.
Energy is critically important to the Canadian economy. Energy demands in Canada are increasing and will continue to do so. As a result, it has been predicted that the price of energy will continue to rise as the demand for energy increases. Energy suppliers and some consulting companies understand the concerns numerous businesses may have about the cost of electricity in the future, and thus they have come up with a solution.
One of the main programmes being offered is an on-farm energy audit to help the producer understand problem areas at their operation and options which could save money. The key is to understand how your energy is being used because if you cannot measure it, you cannot manage it.
An energy audit helps to fully understand how energy is being used in your building as well as identifies how the operation can become more energy efficient. Once this is done, you can begin to reduce the operating costs and improve the performance of your building. Without an energy audit, you may have no idea where the problem areas are. Even though your building is running well, performing an audit could help you achieve even greater efficiencies while reaching or even exceeding your business goals.
Energy audits are individually tailored to ensure coverage of each farm's primary energy uses. This allows the audit to meet the needs of your production site as not all producers have the same operating systems or methods.
The amount of time and money a producer is willing to spend will determine the detail of the audit he or she may choose.
Another factor could be the level of energy-efficient machinery and equipment the operation is currently using. At the lower price range, an assessment can be done which covers at least a one-year span. This is primarily a screening of the operation which will reveal the gross usage pattern on the account and the electricity rates. This assessment is then analyzed to identify any anomalies that might suggest that a more in-depth assessment is required.
Falling within the middle of the price range is a more detailed energy audit, which involves a visit from an engineer. This assessment provides an inventory of the energy consumption of equipment that is both electrical and non-electrical (natural gas, propane, etc.). While the assessment is being conducted, the energy engineer will also be asking the producer questions, much like an interview, to gain a better understanding of equipment operation, control settings, or anything that may affect energy consumption.
Finally, at the top of the price range is a very detailed energy audit with monitoring of the equipment at the operation. In order for the monitoring to take place, a technician must come to install the electrical metering device. To get an accurate representation of the operation's energy consumption, the metering is done over a two-week period. The metering includes equipment such as fans, water heaters, lights, etc. The metering is important as it provides a profile which demonstrates how the equipment is operating when the producer or employees are not present.
If you are interested in conducting an on-farm energy audit, there are incentives that can help to reduce the total cost of the audit. Incentives are available through the utilities (i.e., Hydro One, Union Gas, and others) that cover a portion of the costs on electricity energy audits. There are also prescriptive incentives available for producers who are looking to change specific equipment, e.g. creep heat pads, high and ultra-high efficiency exhaust fans, natural ventilation, lighting, etc. The incentives are designed to help agricultural producers transition to more energy-efficient operations.
Conducting an on-farm energy audit can be a pricey process; however, it could result in saving a large amount of money down the line to be used elsewhere.
If performing an energy audit is not something you wish to proceed with at the current time, there are other options which could help lower energy use. Firstly, and most simply, clean and maintain your equipment. By cleaning and conducting proper maintenance, you can produce an energy saving of 40 per cent. Another option would be to replace old equipment with energy-efficient models. Replacing old livestock ventilation fans is just one of the many examples where a producer could make a small change and see a rewarding outcome.
In most cases, higher efficiency equipment is often more expensive to purchase than the less-efficient model; however, with lower operating costs, the pay-back can be witnessed within the first year of use. Other simple changes can include changing from incandescent lighting to a T-8 fluorescent lighting, sealing windows with caulking and weather stripping, and insulating hot water lines. Visit the OMAFRA web site (click here) for a list of 25 quick tips for reducing your costs.
As an example of the potential benefits, producers have witnessed a range of 10 to 30 per cent of savings (depending on the initial energy use at the operation) following on-farm audits conducted by Agviro Inc. of Guelph. For the most part, some recommendations can be done without having to invest much money. Even if you have just recently constructed your building, you cannot assume that it is utilizing the most energy-efficient equipment.
The 'savings in your pocket' from doing an energy audit will vary according to the type of equipment, the amount it operates and the cost of the upgrade. The pay-back can be witnessed immediately on some of the changes (i.e., adjusting control settings) or may range to a maximum of five years.
Bottom line, if you do not know where the problem areas are that are driving up your energy usage, it will be a lot harder to find them. Get an energy audit done to start saving sooner.
August 2012
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