(Press-News.org) HUNTSVILLE, TX 9/24/14 -- Although membership in a gang often is depicted as a lifelong commitment, the typical gang member joins at age 13 and only stays active for about two years, according to a study at Sam Houston State University.
"Gang membership is not a fixed identity or a scarlet letter," said David Pyrooz in an article published in the Journal of Quantitative Criminology. "Media and popular culture have led to misconceptions about gangs and gang membership, chief among them the myth of permanence, as reflected in the quote from West Side Story –'When you're a Jet, you're a Jet all the way, from your first cigarette to your last dyin' day'."
The study was based on the 1997 National Longitudinal Survey of Youth, a national representative sample of nearly 9,000 youth between the ages of 12 and 16 who were tracked and interviewed annually until their early twenties. The study found that only 8 percent of those youth identified themselves as gang members. Less than 10 percent of the members stayed in gangs beyond two years, and 20 percent joined gangs as adults.
"First, the results of this study demonstrate that gang membership is strongly age-graded, much like criminal offending," said Pyrooz. "While gang membership is overwhelmingly an adolescence-oriented phenomenon, the findings indicate that youth cycle in and out of gangs at distinct points in the life-course."
There are six pathways into and out of gangs, which include three that occur during adolescence, two that are maintained over a long period, and one that starts late in the teenage years and continues into adult. The study also found that 40 percent of the gang members were active as adults. Adult gangs were found to be a combination of carryovers from youth gang involvement and those initiated into gangs as adults.
Another interesting phenomenon from the study is that the youth gang population identified in the study didn't match the demographic profile from police. At age 13, females constitute 30 percent of gang members and Blacks and Hispanics about 45 percent of gang members. But by age 20, female gang involvement reduced to about 15 percent and Black and Hispanic gang involvement increased to nearly 55 percent of gang members. Alluding to the demographic disparities, "gender better mirrors law enforcement records than race and ethnicity," said Pyrooz.
This study can be used to develop better prevention and intervention programs by targeting appropriate age groups for these initiatives. For example, gang prevention programs targeting students in the 6th or 7th grade would be a good use of resources because most youth who join gangs begin in their early teenage years, and as early as ages 10 and 11. In addition, because many members join gangs as adults, it is important to understand and develop programming for this demographic.
INFORMATION:
The study, "'From Your First Cigarette to Your Last Dyin' Day:' The Patterning of Gang Membership in the Life-Course," is available from the Journal of Quantitative Criminology.
Sam Houston State study finds gang life is short-lived
2014-09-24
ELSE PRESS RELEASES FROM THIS DATE:
2-D materials' crystalline defects key to new properties
2014-09-24
Understanding how atoms "glide" and "climb" on the surface of 2D crystals like tungsten disulphide may pave the way for researchers to develop materials with unusual or unique characteristics, according to an international team of researchers.
"If we don't understand what is behind the materials' characteristics caused by these defects, then we can't engineer the right properties into devices," said Nasim Alem, assistant professor of materials science and engineering, Penn State. "With a closer look, we might find that some of the defects are no good, that we don't want ...
Wavefront optics emerging as new tool for measuring and correcting vision, reports Optometry and Vision Science
2014-09-24
September 24, 2014 – A technique developed by astronomers seeking a clear view of distant objects in space is being intensively studied as a new approach to measuring and correcting visual abnormalities. The October issue of Optometry and Vision Science, official journal of the American Academy of Optometry, is a theme issue devoted to research on wavefront refraction and correction. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health.
The special issue presents new research on the use of wavefront analysis for assessing subtle, ...
Nanotechnology leads to better, cheaper LEDs for phones and lighting
2014-09-24
Princeton University researchers have developed a new method to increase the brightness, efficiency and clarity of LEDs, which are widely used on smartphones and portable electronics as well as becoming increasingly common in lighting.
Using a new nanoscale structure, the researchers, led by electrical engineering professor Stephen Chou, increased the brightness and efficiency of LEDs made of organic materials (flexible carbon-based sheets) by 58 percent. The researchers also report their method should yield similar improvements in LEDs made in inorganic (silicon-based) ...
Pressure mounts on FDA and industry to ensure safety of food ingredients
2014-09-24
Confusion over a 1997 Food and Drug Administration (FDA) rule that eases the way for food manufacturers to use ingredients "generally regarded as safe," or GRAS, has inspired a new initiative by food makers. Food safety advocates say the current GRAS process allows substances into the food supply that might pose a health risk, while industry defends its record. An article in Chemical & Engineering News (C&EN) details what changes are on the table.
Melody M. Bomgardner, a senior editor at C&EN, explains that the rule, which was never finalized, was initially established ...
Higher risk of autism found in children born at short and long interpregnancy intervals
2014-09-24
Washington D.C., September 24, 2014 – A study published in the MONTH 2014 issue of the Journal of the American Academy of Child and Adolescent Psychiatry found that children who were conceived either less than 1 year or more than 5 years after the birth of their prior sibling were more likely to be diagnosed with autism than children conceived following an interval of 2-5 years.
Using data from the Finnish Prenatal Study of Autism (FIPS-A), a group of researchers led by Keely Cheslack-Postava, PhD, of Columbia University, analyzed records from 7371 children born between ...
Most breast cancer patients who had healthy breast removed at peace with decision
2014-09-24
ROCHESTER, Minn. — More women with cancer in one breast are opting to have both breasts removed to reduce their risk of future cancer. New research shows that in the long term, most have no regrets. Mayo Clinic surveyed hundreds of women with breast cancer who had double mastectomies between 1960 and 1993 and found that nearly all would make the same choice again. The findings are published in the journal Annals of Surgical Oncology.
The study made a surprising finding: While most women were satisfied with their decision whether they followed it with breast reconstruction ...
Solar explosions inside a computer
2014-09-24
The shorter the interval between two explosions in the solar atmosphere, the more likely it is that the second flare will be stronger than the first one. ETH Professor Hans Jürgen Herrmann and his team have been able to demonstrate this, using model calculations. The amount of energy released in solar flares is truly enormous – in fact, it is millions of times greater than the energy produced in volcanic eruptions. Strong explosions cause a discharge of mass from the outer part of the solar atmosphere, the corona. If a coronal mass ejection hits the earth, it can cause ...
Research shows alcohol consumption influenced by genes
2014-09-24
How people perceive and taste alcohol depends on genetic factors, and that influences whether they "like" and consume alcoholic beverages, according to researchers in Penn State's College of Agricultural Sciences.
In the first study to show that the sensations from sampled alcohol vary as a function of genetics, researchers focused on three chemosensory genes -- two bitter-taste receptor genes known as TAS2R13 and TAS2R38 and a burn receptor gene, TRPV1. The research was also the first to consider whether variation in the burn receptor gene might influence alcohol sensations, ...
Researchers identify brain areas activated by itch-relieving drug
2014-09-24
(Philadelphia, PA) – Areas of the brain that respond to reward and pleasure are linked to the ability of a drug known as butorphanol to relieve itch, according to new research led by Gil Yosipovitch, MD, Professor and Chairman of the Department of Dermatology at Temple University School of Medicine (TUSM), and Director of the Temple Itch Center. The findings point to the involvement of the brain's opioid receptors—widely known for their roles in pain, reward, and addiction—in itch relief, potentially opening up new avenues to the development of treatments for chronic itch.
The ...
New anti-cancer peptide vaccines and inhibitors developed by Ohio State Researchers
2014-09-24
COLUMBUS, Ohio – Researchers have developed two new anticancer peptide vaccines and two peptide inhibitors as part of a larger peptide immunotherapy effort at The Ohio State University Comprehensive Cancer Center – Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC – James).
Two studies, published in the journal OncoImmunology, identify new peptide vaccines and inhibitors that target the HER-3 and IGF-1R receptors. All four agents elicited significant anti-tumor responses in human cancer cell lines and in animal models.
The studies suggest ...