Tuesday, November 6, 2007
Monday , November 05, 2007
By Tina Benitez
Teens that use cannabis may function better than teen tobacco-users, and appear to be more socially driven and have fewer psychosocial problems than those who do not use either substance, according to a Swiss survey.
Researchers at the University of Lausanne in Switzerland surveyed 5,263 students, including 455 who smoke marijuana only, 1,703 who smoke marijuana and tobacco and 3,105 who smoked neither one.
The survey, which will be published in the November issue of Archives of Pediatrics & Adolescent Medicine, found that marijuana-only smokers had better relationships with friends, better grades and were more likely to play sports than teens who smoked tobacco and those who abstained from both substances.
A U.S. substance abuse expert disagreed with the study and said U.S. teens should not be encouraged to use marijuana, particularly since teenagers’ brains are still developing at this time.
“Switzerland is very liberal compared to us in many ways,” Dr. Edwin Salsitz, senior physician of chemical dependency at Beth Israel Medical Center. “In general, it’s not a good idea for teenagers to use psychoactive drugs. The brain is still developing until the age of 21.
“Maybe (there’s) a cultural bias there that says it’s ok to use marijuana once or twice a month,” he continued “But from what I know, I’ve never heard that anyone thought it was beneficial. Most experts here would say that it’s not a good idea to use cannabis before the age of 15, because it interferes with school and the development of brain.”
Researchers found that marijuana-only users had the following characteristics:
— More likely to be male (71.6 percent marijuana smokers versus 59.7 percent of teens who used tobacco and marijuana)
— Play sports (85.5 percent vs. 66.7 percent of tobacco and marijuana)
— Live with both parents (78.2 percent vs. 68.3 percent of tobacco and marijuana)
— Have good grades (77.5 percent vs. 66.6 percent of tobacco and marijuana)
Cannabis-only smokers were also less likely to have been drunk in the past 30 days, less likely to use cannabis before the age of 15 and less likely to use marijuana more than once or twice in the past 30 days. They were also less likely to use other illegal drugs, compared to students who used both substances, researchers found.
“The gateway theory hypothesizes that the use of legal drugs (tobacco and alcohol) is the previous step to cannabis consumption,” the authors wrote. “However, recent research also indicates that cannabis use may precede or be simultaneous to tobacco use and that, in fact, its use may reinforce cigarette smoking or lead to nicotine addiction independently of smoking status. In any case, and even though they do not seem to have great personal, family, or academic problems, the situation of those adolescents who use cannabis but who declare not using tobacco should not be trivialized.”
In comparison to students who abstained from both substances, marijuana-only smokers were:
— More likely to be male (71.6 percent cannabis users vs. 47.7 percent of teens who abstained)
— Have a good relationship with friends (87 percent vs. 83.2 percent)
— Be sensation-seeking (37.8 percent vs. 21.8 percent)
— Play sports (85.5 percent vs. 76.6 percent)
— Less likely to have a good relationship with their parents (74.1 percent vs. 82.4 percent)
The fact that some students who smoked marijuana were less likely to have a good relationship with their parents wasn’t surprising to Salsitz. “The way to look at it is to look at alcohol as an analogy,” he said. “Do adults or teens who use alcohol have better relationships than those abstinent? That’s just not true. It looks like if you smoke marijuana and not tobacco, it’s better for you.”
He said the study should be viewed in terms of culture. “In France, people drink wine with food, but they don’t get drunk,” he said. “Kids also start doing this when they are young, and that’s different from here. I don’t think anyone would say that the active ingredient in marijuana is doing anything good in the brain, compared to abstaining or smoking tobacco, so there must be cultural reason for this happening.”
Posted by gjblass at 3:17 PM
stairs are generally pretty boring.
don’t get me wrong: if the staircase gets me from one level to another, it’s succeeded as a design. i just wish they were a bit more exciting.here are a few examples that might actually keep me amused for a few minutes before i realise i’m wheezing.
1. storage staircase
designer: unicraft joinery
i can’t believe this type of staircase isn’t already widely used in homes - for people with very little storage space this could be extremely valuable. simply use each step as a drawer and no-one will even notice.
2. musical stairs
information about the musical staircase in the sony building in ginza, tokyo seems to be sparse. check out the video below for a demo. to actually make a tune on these steps would involve jumping up and down like a mental case trying to hit the correct note, possibly breaking bones on the way. it’s like a hardcore version of the king-size piano in ‘big’.
3. crooked stairs
designers: gabriella gustafson and mattias ståhlbom
these abstract stairs look brilliant but i can’t help thinking that the chances of falling down them would be significantly higher than normal. if i woke up crusty-eyed in the morning with these in my house i’m pretty sure i’d attempt to walk down the middle and quickly become unconcious again.
4. slide staircase
designer: rodney miller @ wood innovations
multi-millionnaire scott jones decided to splash his cash on a spiral staircase-slide and instantly made a lot of people jealous. local craftsman rodney miller was called upon to create this 17 ft mahogany toy, a job which took a whopping 15 months to finish. the slide also includes fibre-optic lights which can change to 8 different colours.
5. internal log staircase
designer: dave stewart
thought to be the world’s only internal log staircase, this beauty has been carved from one giant 140 ton kauri log. the beast took a total of 500 man hours to carve and finish and can be found at ‘ancient kauri kingdom’ in new zealand.
6. retractable staircase
designer: aaron tang
industrial designer aaron tang created these futuristic retractable stairs using ’simple hinges and pistons’. they could be used where living space is limited or where access to a certain level of a building needs to be restricted.
7. steel ribbon stairs
designer: thomas heatherwick
london-based designer thomas heatherwick created this amazing 55 ton steel staircase for the opening of the new longchamps store in new york last year and has since recieved praise from all angles. the construction of the staircase was apparently a logistical nightmare, each of the 17 seperate units having to be installed precisely, stretching up to the ceiling.
8. suspended stairs
designers: jürg conzett and rolf bachofner
it’s not often you see a stairway used to bridge a gorge. swiss designers jurg conzett and rolf bachofner decided this would be the best way to cross the traversinertobel in switzerland as the only safe opposing points were at different elevations, meaning a traditional bridge could cause a few problems. the incredible staircase-bridge measures 56 metres in length.
9. ‘impossible’ spiral staircase
there are many mysteries surrounding the construction of the spiral staircase at loretto chapel and many believe the appearance of it to be a miracle. design-wise, the staircase is extremely impressive - there is no visible central beam to hold the staircase up and no nails have been used during its creation. however the central spiral is so narrow that it does indeed act as a support beam for the staircase.
Posted by gjblass at 11:58 AM
Phoenix says its new technology, HyperSpace, will offer mobile PC users the ability to instantly fire up their most used apps -- things like e-mail, web browsers and various media players -- without using Windows, simply by pressing the F4 button.
"As Windows gets more and more complex, we've seen startup times get longer and longer," says Hobbs. "If I go to the airport and try to connect to a Wi-Fi network, I'm waiting for five minutes just to connect. That's ridiculous -- people usually just give up and use their cell phones or PDAs."
Phoenix Technologies is the company responsible for many computers' basic input/output system, or BIOS, the firmware code that runs when your PC starts up. Usually, the BIOS identifies the hardware on your PC and initializes components, then lets the operating system handle everything else, from storing files to connecting with networks to running applications. In essence, HyperSpace is a simple operating environment, a layer on top of the BIOS, that runs side-by-side with Windows and can efficiently implement some of the most commonly used apps on a PC.
Full story here
Posted by Chismillionaire at 9:57 AM
Harvard and Yale have realized successfully that the actual market is much more than just the S&P 500. Utilizing hedge funds, private equity, managed timber, absolute return funds, commodities and derivatives they have allowed their school's endowment to fund nearly their entire budget with only 4-5% of the total endowment yearly.
Above is a list from Smart Money how you too can easily better diversify your portfolio to mirror this incredibly successful strategy. While some options are not available to the everyday investor and these institutions are non profits and therefore tax exempt, Chismillionare feels several of these plays should be in every portfolio- managed timber is particularly wise being an inflation hedge and a renewable resource!!!!
The old domestic, international, and emerging market equities combined with some fixed income and REITS are woefully inadequate to earn the true market return. This approach will also buffer market downturns better.
Link to the full story here
Posted by Chismillionaire at 9:33 AM
A new startup called KiOR has a promising strategy for producing biofuels.
Ethanol, by far the most common biofuel today, has a number of drawbacks. It can't be transported in pipelines designed for gasoline and diesel, and it contains far less energy than gasoline, resulting in significantly decreased mileage.
A number of companies seem to be taking note, investing in the development of fuels that contain more energy than ethanol and that can use existing pipelines, making them much easier to distribute in large quantities. BP is interested in another alcohol, butanol. (See "BP's Bet on Butanol.") Other companies are developing organisms that can convert sugars into synthetic hydrocarbons. (See "Building Better Biofuels" and "Making Gasoline from Bacteria.")Today's announcement highlights the latest effort in this direction. KiOR, which is being funded by Khosla Ventures, will make biocrude that can be refined at existing oil refineries. The startup will focus on producing biofuels from cellulosic sources, which are attractive because they are cheap, can be used to produce much more fuel per acre than corn grain can, and have less impact on the environment
Posted by Chismillionaire at 9:30 AM
Researchers have created plants that kill insects by disrupting their gene expression. The crops, which initiate a gene-silencing response called RNA interference, are a step beyond existing genetically modified crops that produce toxic proteins. Because the new crops target particular genes in particular insects, some researchers suggest that they will be safer and less likely to have unintended effects than other genetically modified plants. Others warn that it is too early to make such predictions and that the plants should be carefully tested to ensure that they do not pose environmental problems. But most researchers agree that it's unlikely that eating these plants would have adverse effects on humans.
RNA interference occurs naturally in animals ranging from worms to humans. It's a process whereby double-stranded RNA copies of specific genes prevent cells from translating those genes into proteins. The new genetically modified plants carry genes for double-stranded RNA targeted to particular insect genes. Two papers published concurrently in Nature Biotechnology this week show that in some insects, eating double-stranded RNA is enough to cause gene silencing. This is surprising: in previous research, RNA interfered with organisms' gene expression only when it was injected.
Posted by Chismillionaire at 9:26 AM
There's no Gphone just yet, but Google does want a big piece of your cell phone. In November 2007, the company announced its Android mobile operating system, and 34 companies are on board to develop applications for the cell-phone platform as part of the Open Handset Alliance. The open software platform is hoped to go head-to-head with smartphone software from RIM, Apple, Microsoft, Nokia, and Palm.
Google's open-source mobile platform: the best of the blog chatter
Posted by Chismillionaire at 9:22 AM
AT&T 8310 adds GPS to already great package. T-Mobile's curve still better by offering WiFi
The good: The RIM BlackBerry Curve 8310 adds GPS capabilities to the already impressive and sleek messaging smartphone. You also get a 2-megapixel camera, Bluetooth, and good call quality.
The bad: The Curve 8310 doesn't offer Wi-Fi or 3G support. The Web browser isn't the sleekest, and the camera lacks video-recording capabilities. Also, unlike the T-Mobile version, you only get the proprietary BlackBerry Messenger IM client.
The bottom line: Still offering an attractive design and excellent messaging capabilities, the addition of GPS makes the RIM BlackBerry Curve 8310 an even more attractive choice for road warriors.
Posted by Chismillionaire at 9:16 AM