Frasier Crane and his brother, Niles, both practiced psychiatry on their popular NBC sitcom “Frasier.” Mob boss Tony Soprano had his therapist on HBO’s hit show “The Sopranos.” And HBO has even made therapy the focus of two recent shows — “Tell Me You Love Me” and “In Treatment.”

But all of these TV portrayals may actually make viewers less likely to seek psychological services themselves. That’s according to a new study by three Iowa State University psychologists.

ISU psychology professors David Vogel and Douglas Gentile collaborated with graduate student Scott Kaplan on the study of 369 Iowa State students. It explored how exposure to television shows may contribute to negative perceptions about psychological services that can lead to lower intentions to seek such services. They produced a paper titled “The Influence of Television on Willingness to Seek Therapy,” which was published in the March issue of the Journal of Clinical Psychology, a professional journal.

Unflattering portrayals of mental health professionals

Kaplan has conducted a related content analysis on television portrayals of mental health professionals. It found that they’re not favorable.

“Generally, it seems like therapists are portrayed unethically — like sleeping with the client, or implanting false memories, or talking about their clients outside the session,” Vogel said. “These are things that almost never happen with real therapists, but on a show — because they’re probably more exciting — they happen more frequently.”

“Therapists also often are portrayed as buffoons,” Gentile said. “That’s either by being the jokester, like Frasier, or by being the butt of jokes. In either case, these are not positive portrayals. They do not show the skill, expertise and ethics of professional therapists.”

But it’s not just the portrayal of the therapists that may be keeping people out of therapy. It’s also the portrayal of those who seek counseling on TV.

“If you examine the portrayal of the clients, it’s probably as bad or worse,” Vogel said. “So why would you seek therapy if you believe you’re going to be perceived negatively and you’re going to see someone who’s incompetent and not able to help you?”

Because dramas and comedies are the two types of shows that often portray psychologists and psychotherapy, the ISU psychologists asked respondents how often they watched TV comedy and drama shows. They also asked them to assess perceptions of the stigma associated with seeking professional help, attitudes toward therapy, their intentions to seek therapy for psychological and interpersonal concerns, and their feelings of depression.

TV ties to therapy stigma

The study found a positive correlation between viewers’ exposure to comedy and drama shows and their perceptions of stigma associated with seeking professional help. This stigma was then related to lower willingness to seek professional mental health services.

“One of the things that’s important to note about this particular study is that we showed that TV exposure was related to your perceptions of the stigma associated with seeking help, which has been found to be one of the main factors found from inhibiting people from seeking that help,” Vogel said. “So you perceive that yourself, and other people, would be crazy to go (to therapy).”

That’s a problem for those people who could really benefit from professional mental health services. According to Vogel, the most recent studies in the mental health field have found that about half of population experiences a situation in their lives where psychological therapy could be helpful — about 20 percent in a single year. But in a given year, only about 10 percent of the people who could benefit from therapy will seek help from a psychologist or other mental health professional.

“Mental health services are already vastly underutilized, and this cultural stigma is part of the reason,” Gentile said. “And this study suggests that this cultural stigma exists partly because of the way that psychologists and their patients are portrayed on television.”

[Mike Ferlazzo @ Iowa State University]

The method, published in the May 4 issue of Nature Nanotechnology, enables more precise shaping of microchip components than what is possible with current technology. More precise component shapes could help manufacturers build smaller and better microchips, the key to more powerful computers and other devices.

“We are able to achieve a precision and improvement far beyond what was previously thought achievable,” said electrical engineer Stephen Chou, the Joseph C. Elgin Professor of Engineering, who developed the method along with graduate student Qiangfei Xia. Chou’s lab has previously pioneered a number of innovative chip making techniques, including a revolutionary method for making nanometer-scale patterns using imprinting.

Microchips work best when the structures fabricated on them are straight, thin and tall. Rough edges and other defects can degrade or even ruin chip performance in most applications. In integrated circuits, for instance, such flaws could cause current to leak and voltage to fluctuate. In optic devices, they could interfere with the transmission of light. In biological devices, they could impede the flow of DNA and other biomaterials.

“These chip defects pose serious roadblocks to future advances in many industries,” Chou said.

To deal with this problem, researchers try to improve the process used to make the microchips. However, Chou said such an approach works only to a point; eventually chip makers will run up against fundamental physical limits of current manufacturing techniques. In particular, the electrons and photons that are used like chisels to carve out the microscopic features on a chip always have some random behavior. This effect becomes pronounced at very small scales and limits the accuracy of component shapes.

“What we propose instead is a paradigm shift: Rather than struggle to improve fabrication methods, we could simply fix the defects after fabrication,” said Chou. ???And fixing the defects could be automatic — a process of self-perfection.???

Chou’s method, termed Self-Perfection by Liquefaction (SPEL), achieves this by melting the structures on a chip momentarily, and guiding the resulting flow of liquid so that it re-solidifies into the desired shapes. This is possible because natural forces acting on the molten structures, such as surface tension — the force that allows some insects to walk on water — smooth the structures into geometrically more accurate shapes. Lines, for instance, become straighter, and dots become rounder.

Simple melting by direct heating has previously been shown to smooth out the defects in plastic structures. This process can’t be applied to a microchip, for two reasons. First, the key structures on a chip are not made of plastic, which melts at temperatures close to the boiling point of water, but from semiconductors and metals, which have much higher melting points. Heating the chip to such temperatures would melt not just the structures, but nearly everything else on the chip. Secondly, the melting process would widen the structures and round off their top and side surfaces, all of which would be detrimental to the chip.

Chou’s team overcame the first obstacle by using a light pulse from so-called excimer laser, similar to those used in laser eye surgery, because it heats only a very thin surface layer of a material and causes no damage to the structures underneath. The researchers carefully designed the pulse so that it would melt only semiconductor and metal structures, and not damage other parts of the chip. The structures need to be melted for only a fraction of a millionth of a second, because molten metal and semiconductors can flow as easily as water and have high surface tension, which allows them to change shapes very quickly.

To overcome the second obstacle, Chou’s team placed a plate on top of the melting structures to guide the flow of liquid. The plate prevents a molten structure from widening, and keeps its top flat and sides vertical, Chou said. In one experiment, it made the edges of 70 nanometer-wide chromium lines more than five times smoother. The resulting line smoothness was far more precise than what semiconductor researchers believe to be attainable with existing technology.

The conventional approach to fixing chip defects is to measure the exact shape of each defect, and provide a correction precisely tailored to it — a slow and expensive process, Chou said. In contrast, Chou’s guided melting process fixes all defects on a chip in a single quick and inexpensive step. “Regardless of the shape of each defect, it always gets fixed precisely and with no need for individual shape measurement or tailored correction,” Chou said.

One of the big surprises from this work is observed when the guiding plate is placed not in direct contact with the molten structures, but at a distance above it. In this situation, the liquid material from the structures rises up and reaches the plate by itself, causing line structures to become taller and narrower — both highly desirable outcomes from a chip design perspective.

“The authors demonstrate improved edge roughness and dramatically altered aspect ratios in nanoscale features,” said Donald Tennant, director of operations at the NanoScale Science and Technology Facility at Cornell University. The techniques “may be a way forward when nanofabricators bump up against the limits of lithography and pattern transfer,” he said.

Next, Chou’s group plans to demonstrate this technique on large (8-inch) wafers. Several leading semiconductor manufacturers have expressed keen interest in the technique, Chou said.

[Steven Schultz @ Princeton University Engineering School]

What’s more, car owners are predicted to cut back on driving in order to save money. Together, these changes in consumer behaviour could make an important dent in the US contribution to global warming, reducing annual carbon dioxide emissions by tens of millions of tonnes per year. The impact will be dramatic, says Chris Knittel, an economist at the University of California, Davis, who was involved in one of the studies.

The changes are being driven by record fuel prices in the US, where, at the end of April, the average price of gasoline stood at $3.65 per gallon, 20 percent more than in January and treble the price of a decade ago. Until recently, these increases did not seem to be having a consistent effect on the car market and fuel use. Though sales of SUVs in the US have been falling over the past few years, this decline has come on the back of years of rapid growth, and overall gasoline consumption has been increasing every year since 1991.

That could be about to change. Knittel and colleagues looked at data on 1.4 million car purchases over the past 10 years, comparing sales patterns with gas prices. They found that sales of the least fuel-efficient cars, such as SUVs and pick-up trucks, fell by 13 percent for every $1 per gallon increase in the price of gasoline. The biggest SUVs suffered the most, with sales dropping by over 25 percent for every dollar by which the gas price rose. And for every $1 hike in gas prices there was a corresponding 17 percent sales boost for the most efficient vehicles, such as compact cars and hybrids. Knittel estimates that over about a decade, such changes in buying habits could cut the amount of gasoline used by US drivers by around 7 percent for every $1 increase in its price.

Knittel’s findings, presented last month at the University of California Energy Institute in Berkeley, are in broad agreement with those of economist Kenneth Small of the University of California, Irvine. Small looked at data on US fuel consumption and prices over the past 40 years, and projected last year that the recent doubling in fuel prices would quickly lead to a 4 percent drop in the total mileage covered on the roads. In the longer term, as drivers continue to react to rising prices, he projects the size of the reduction will grow to around 20 percent (The Energy Journal, vol 28, p 25).

This would lead to a substantial reduction in carbon emissions. Small says that a $1 per gallon rise in gasoline prices, roughly that seen over the past two years, will result in motorists using 14 percent less fuel in the long term. That would avoid the release of some tens of millions of tonnes of CO2 per year, equivalent to roughly 2 percent of the country’s greenhouse-gas emissions for 2006. That is a hugely significant drop, close to the level of cuts that some nations are required to make under the Kyoto protocol.

Small’s prediction comes with major caveats, however. Gasoline prices are not expected to return to the lows of a decade ago, but could fall by 10 or 20 percent in coming years. And any US economic recovery will boost fuel consumption, partly through raising incomes, which would dilute the pressure on motorists to drive less. So while expensive fuel will rein in consumption, Small and other economists question whether this will be enough to cause an overall fall in emissions from cars.

It is also possible that politics will intervene before any of these effects has a chance to kick in. Presidential hopefuls John McCain and Hillary Clinton have reacted to consumer protests over soaring fuel prices by declaring that they would suspend federal gasoline taxes. “It’s a fantastically stupid idea,” says Roberton Williams, an economist at the University of Texas at Austin.

“But people don’t like high gas taxes, so it’s popular.”

[Claire Bowles @ New Scientist]

By JOHN GEROME Sunday, May 11, 2008 Carrie Underwood is the newest member of the Grand Ole Opry. via WQXI-AM Atlanta

Scene: The 2008 RALPH Awards, held at a highly secret location somewhere in the Northern Hemisphere. via Reno Gazette-Journal