The State of Virtualization

This paper presents an overview of the state of virtualization in December, 2007. This document is written from the
perspective of an experienced infrastructure specialist, and is not intended to be an engineering document. The purpose
of this document is to objectively compare virtualization offerings from Microsoft, Virtual Iron, Red Hat, Novell and
VMware. Ease of installation, configuration and administration are the primary focus of review for each of these
virtualization suites. Please note that all opinions put forth in this paper are that of the authors and are in no way
endorsed by the software vendors reviewed.

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Do Pretty People Earn More?

Studies show attractive students get more attention and higher evaluations from their teachers, good-looking patients get more personalized care from their doctors, and handsome criminals receive lighter sentences than less attractive convicts. But how much do looks matter at work?

The ugly truth, according to economics professors Daniel Hamermesh of the University of Texas and Jeff Biddle of Michigan State University, is that plain people earn 5 to 10 percent less than people of average looks, who in turn earn 3 to 8 percent less than those deemed good-looking.

These findings concur with other research that shows the penalty for being homely exceeds the premium for beauty and that, across all occupations, the effects are greater for men than women.

A London Guildhall University survey of 11,000 33-year-olds found that unattractive men earned 15 percent less than those deemed attractive, while plain women earned 11 percent less than their prettier counterparts. In their report "Beauty, Productivity and Discrimination: Lawyers', Looks and Lucre," Hamermesh and Biddle found that the probability of a male attorney attaining early partnership directly correlates with how handsome he is.

Size matters, too. A study released last year by two professors at the University of Florida and the University of North Carolina found that tall people earn considerably more money throughout their careers than their shorter coworkers, with each inch adding about $789 a year in pay.

A survey of male graduates of the University of Pittsburgh found that the tallest students' average starting salary was 12 percent higher than their shorter colleagues'. The London Guildhall study showed that overweight women are more likely to be unemployed, and that those who are working earn on average five percent less than their trimmer peers.

According to Dr. Gordon Patzer, who has spent over three decades studying and writing about physical attractiveness, human beings are hard-wired to respond more favorably to attractive people. Even studies of babies show they will look more intently and longer at prettier faces.

"Good-looking men and women are generally judged to be more talented, kind, honest and intelligent than their less attractive counterparts," says Patzer. "Controlled studies show people go out of their way to help attractive people - of the same and opposite sex - because they want to be liked and accepted by good-looking people."

This may not sound too pretty to those of us who were dealt a bad hand in the looks department. But don't rush off to try out for the next round of Extreme Makeover just yet.

Despite what the research tells us, some of the world's most successful people have been ordinary looking at best, and you would never mistake the faces in Fortune for the faces in Esquire or Entertainment Weekly. Business legends are often of average height (Bill Gates at 5'9½") or even diminutive (Jack Welch, 5'8", and Ross Perot at 5'7"). What's more, many folks who are lovely to look at complain that they lose out on jobs because people assume they are vacuous or "lightweights."

How does this reconcile with all the research? Hiring managers say it is the appearance of confidence they find attractive, not the presence of physical beauty. And they contend that attractiveness has more to do with how you carry yourself and the energy you exude – rather than having perfect features or a great physique.

According to Gordon Wainright author of Teach Yourself Body Language, anyone can increase their attractiveness to others if they maintain good eye contact, act upbeat, dress well (with a dash of color to their wardrobe), and listen well. Wainright also stresses the importance of posture and bearing and suggests that for one week you stand straight, tuck in your stomach, hold your head high, and smile at those you meet. Based on many such experiments, Wainwright predicts you will begin to be treated with more warmth and respect and start attracting more people to you.

Why Fish Oil Is Good for You

It's good news that we are living longer, but bad news that the longer we live, the better our odds of developing late-onset Alzheimer's disease.

Many Alzheimer's researchers have long touted fish oil, by pill or diet, as an accessible and inexpensive "weapon" that may delay or prevent this debilitating disease. Now, UCLA scientists have confirmed that fish oil is indeed a deterrent against Alzheimer's, and they have identified the reasons why.

Reporting in the current issue of the Journal of Neuroscience, now online, Greg Cole, professor of medicine and neurology at the David Geffen School of Medicine at UCLA and associate director of UCLA's Alzheimer Disease Research Center, and his colleagues report that the omega-3 fatty acid docosahexaenoic acid (DHA) found in fish oil increases the production of LR11, a protein that is found at reduced levels in Alzheimer's patients and which is known to destroy the protein that forms the "plaques" associated with the disease.

The plaques are deposits of a protein called beta amyloid that is thought to be toxic to neurons in the brain, leading to Alzheimer's. Since having high levels of LR11 prevents the toxic plaques from being made, low levels in patients are believed to be a factor in causing the disease.

Alzheimer's is a debilitating neurodegenerative disease that causes memory loss, dementia, personality change and ultimately death. The national Alzheimer's Association estimates that 5.1 million Americans are currently afflicted with the disease and predicts that the number may increase to between 11 million and 16 million people by the year 2050.

The researchers examined the effects of fish oil, or its component DHA, in multiple biological systems and administered the oil or fatty acid by diet and by adding it directly to neurons grown in the laboratory.

"We found that even low doses of DHA increased the levels of LR11 in rat neurons, while dietary DHA increased LR11 in brains of rats or older mice that had been genetically altered to develop Alzheimer's disease," said Cole, who is also associate director of the Geriatric Research Center at the Veterans Affairs Medical Center.

To show that the benefits of DHA were not limited to nonhuman animal cells, the researchers also confirmed a direct impact of DHA on human neuronal cells in culture as well. Thus, high levels of DHA leading to abundant LR11 seem to protect against Alzheimer's, Cole said, while low LR11 levels lead to formation of the amyloid plaques.

Fish oil and its key ingredient, omega-3 fatty acids (found in fatty fish like salmon), have been a mainstay of alternative health practitioners for years and have been endorsed by the American Heart Association to reduce the risk of cardiovascular disease.

Fatty acids like DHA are considered "essential" fatty acids because the body cannot make them from other sources and must obtain them through diet. Years of research have shown that DHA is the most abundant essential fatty acid in the brain, Cole said, and that it is critical to fetal and infant brain development. Studies have also linked low levels of DHA in the brain to cognitive impairment and have shown that lower levels may increase oxidative stress in the brains of Alzheimer's patients.

Based on the positive results, the National Institutes of Health is currently conducting a large-scale clinical trial with DHA in patients with established Alzheimer's disease. For those patients, Cole said, it may be too late in the disease's progression for DHA to have much effect. But he is hopeful that the NIH will conduct a large-scale prevention clinical trial using fish oil at the earliest stages of the disease — particularly because it is unlikely that a pharmaceutical company will do so, since fish oil in pill form is readily available and inexpensive.

Still to be determined, he said, "is what the optimal dose should be. It could be that a smaller amount might be helpful, especially in a place like the south of France, where people are already on a Mediterranean diet."

"There's a deficiency of DHA to begin with," Cole said, "and this may contribute to the low LR11 seen in many Alzheimer's patients."

In addition to Cole, authors included Qui-Lan Ma, Bruce Teter, Oliver J. Ubede, Takashi Morihara, Dilsher Dhoot, Michael D. Nyby, Michael L. Tuck and Sally A. Frautschy, all of UCLA.

Funding for the research was provided by a grant from the National Center for Complementary and Alternative Medicine. The research was initiated with support from the National Institute on Aging.

The UCLA Department of Neurology encompasses more than a dozen research, clinical and teaching programs. These programs cover brain mapping and neuro-imaging, movement disorders, Alzheimer's disease, multiple sclerosis, neurogenetics, nerve and muscle disorders, epilepsy, neuro-oncology, neurotology, neuropsychology, headaches and migraines, neurorehabilitation, and neurovascular disorders. The department ranked No. 1 in 2005 and 2006 among its peers nationwide in National Institutes of Health funding.

For more information, visit http://neurology.medsch.ucla.edu

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