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How early breast tumors become deadly: A small group of molecules might hold the answer

Researchers have discovered a restricted pattern of molecules that differentiate early-stage breast tumors from invasive, life-threatening cancer. They also found a similar molecular signature that correlated with the aggressiveness ...

Medicine & Health / Cancer

created Feb 07, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

US girl, 9, gets six-organ transplant

A nine-year-old girl is making what doctors described as a remarkable recovery Sunday, days after surgeons transplanted six of her organs in a groundbreaking medical procedure.

Medicine & Health / Other

created Feb 05, 2012 | popularity 5 / 5 (1) | comments 3

Investigational urine test can predict high-risk prostate cancer in men who chose 'watchful waiting'

Initial results of a multicenter study coordinated by researchers at Fred Hutchinson Cancer Research Center indicates that two investigational urine-based biomarkers are associated with prostate cancers that are likely to ...

Medicine & Health / Cancer

created Feb 02, 2012 | popularity 5 / 5 (1) | comments 0

Bonobos' unusual success story

Mate competition by males over females is common in many animal species. During mating season male testosterone levels rise, resulting in an increase in aggressive behavior and masculine features. Male bonobos, ...

Biology / Plants & Animals

created Jan 23, 2012 | popularity 4.4 / 5 (5) | comments 0 | with audio podcast

Why cholesterol-lowering statins might treat cancer

Cholesterol-lowering statins seem to keep breast cancer at bay in some patients. Now researchers reporting in the January 20th issue of the journal Cell, a Cell Press publication, provide clues about how statins might yield ...

Medicine & Health / Cancer

created Jan 19, 2012 | popularity not rated yet | comments 0

Tests for biomarker may help determine diagnosis of heart attack within hours

For patients admitted to an emergency department with chest pain, use of a contemporary or highly sensitive test for levels of troponin I (a protein in muscle tissue) may help rule-out a diagnosis of heart attack, while changes ...

Medicine & Health / Cardiology

created Dec 27, 2011 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Winning fights increases aggression, even in crickets

Winning a fight can raise aggressiveness, and a study of fighting crickets, published Dec. 21 in the online journal PLoS ONE, provides new insight into the biochemical mechanism that may be responsible.

Biology / Plants & Animals

created Dec 21, 2011 | popularity 3 / 5 (1) | comments 0

Athletes prone to alcohol-related violence

(Medical Xpress) -- New research has found that rates of alcohol-related aggression and antisocial behaviours are particularly high in young Australian athletes, compared to their non-sporting peers.

Medicine & Health / Health

created Dec 21, 2011 | popularity 5 / 5 (1) | comments 0

One trait has huge impact on whether alcohol makes you aggressive

Drinking enough alcohol to become intoxicated increases aggression significantly in people who have one particular personality trait, according to new research.

Medicine & Health / Psychology & Psychiatry

created Dec 19, 2011 | popularity 4.3 / 5 (6) | comments 0 | with audio podcast

Circulating tumor cells not linked to survival in newly diagnosed inflammatory breast cancer

The presence of circulating tumor cells in the blood appears to have no relationship to survival in women who have just been diagnosed with inflammatory breast cancer, according to new research from Fox Chase Cancer Center. ...

Medicine & Health / Cancer

created Dec 09, 2011 | popularity not rated yet | comments 0

Breaking oncogene's hold on cancer cell provides new treatment direction

Just as people's bodies and minds can become addicted to substances such as drugs, caffeine, alcohol, their cancers can become addicted to certain genes that insure their continued growth and dominance.

Medicine & Health / Cancer

created Dec 08, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

New imaging agent has an appetite for dangerous prostate tumors

Non-invasive imaging detects prostate cancer earlier than ever before, but can't accurately distinguish between malignant and benign disease. According to Lawson Health Research Institute's Drs. John Lewis and Len Luyt, a ...

Medicine & Health / Cancer

created Dec 08, 2011 | popularity 5 / 5 (1) | comments 1

Women become aggressive around sexual rivals

(Medical Xpress) -- New research conducted at McMaster University suggests women vying for male attention become aggressive towards other women they see as sexual rivals, a scene often played out in the media and popular ...

Medicine & Health / Psychology & Psychiatry

created Dec 08, 2011 | popularity not rated yet | comments 1 | with audio podcast

Kids born just a few weeks early at risk of behavioural problems

Children born just a few weeks too early are significantly more likely to have behavioural and/or emotional problems in the pre-school years, suggests research published online in the Archives of Disease in Childhood.

Medicine & Health / Health

created Dec 06, 2011 | popularity not rated yet | comments 0

Surgery improves endocarditis-induced heart failure survival rates

Surgery significantly improves short- and long-term outcomes in patients with heart failure caused by a bacterial infection known as endocarditis, according to Duke University Medical Center researchers.

Medicine & Health / Cardiology

created Nov 22, 2011 | popularity not rated yet | comments 0

Aggression

In psychology, as well as other social and behavioral sciences, aggression refers to behavior between members of the same species that is intended to cause pain or harm. Predatory or defensive behavior between members of different species is not normally considered "aggression." Aggression takes a variety of forms among humans and can be physical, mental, or verbal. Aggression should not be confused with assertiveness, although the terms are often used interchangeably among laypeople, e.g. an aggressive salesperson.

There are two broad categories of aggression. These include hostile, affective, or retaliatory aggression and instrumental, predatory, or goal-oriented aggression. Empirical research indicates that there is a critical difference between the two, both psychologically and physiologically. Some research indicates that people with tendencies toward affective aggression have lower IQs than those with tendencies toward predatory aggression. If only considering physical aggression, males tend to be more aggressive than females. One explanation for this difference is that females are physically weaker than men, and so need to resort to other means.

For more information about Aggression, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.