SAN FRANCISCO
Cheap C.J. Mosley Jersey , Nov. 2 (Xinhua) -- A new study in San Francisco indicates that pregnant women, especially those from low-income and Latino families, have widespread exposure to environmental pollutants and many chemicals are absorbed at greater levels by fetuses than by the pregnant women.
The findings, by researchers at the University of California, Berkeley, the University of California
Wholesale Baltimore Ravens Jerseys , San Francisco, and Biomonitoring California, derived from testing of maternal blood samples collected from 77 pregnant women at Zuckerberg San Francisco General Hospital from 2010 to 2011 and of umbilical cord blood samples from 65 of these women once they delivered their babies.
Published on Tuesday in the print edition of the journal Environmental Science and Technology, the study is the first in the United States to measure exposure to 59 toxic chemicals in pregnant women and their newborns.
The researchers measured polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), polybrominated diphenyl ethers (PBDEs)
Wholesale Ravens Jerseys , perfluorinated compounds (PFCs), mercury and lead, among other chemicals. These industrial pollutants are common in the environment, and in previous studies many have been detected in greater than 99 percent of U.S. pregnant women, according to National Health and Nutrition Examination Survey (NHANES) data.
"Pregnant women in the U.S. are exposed to many harmful industrial chemicals that have been linked to premature birth, low birth weight and birth defects
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In the new study, of those samples tested for all 59 chemicals
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In addition, almost 80 percent of the chemicals detected in maternal blood samples were also detected in the umbilical cord blood samples, indicating that they passed through the placenta and entered the fetal environment, where they can pose a health risk to the developing baby. For those chemicals detected in at least 20 paired maternal and umbilical cord samples, 77 percent had significant correlations between maternal and umbilical cord concentrations.
"Contrary to previous research, we found evidence that several PCBs and OCPs were often higher in umbilical cord samples than in maternal blood samples
Cheap Sam Koch Jersey ," said lead author Rachel Morello-Frosch, a professor in the Department of Environmental Science, Policy and Management and the School of Public Health at UC Berkeley. The study also finds that concentrations of mercury and certain PBDEs were often higher in umbilical cord samples than in maternal samples, and for most PFCs and lead, cord blood concentrations were generally equal to or lower than maternal concentrations, which is consistent with previous research.
About the fetus' exposure to pollutants
Cheap Brandon Williams Jersey , Woodruff noted that it "may have significant consequences for the growing fetus, since many of these chemicals are known to affect development."
Of the women participating in this study, 95 percent had a combined annual household income of less than 40,000 U.S. dollars, two-thirds were Latina and a third were born in Mexico, where they may have had less exposure to environmental toxics like the PBDEs found in flame retardants that have been widely used in the United States. "It is important for researchers to more fully understand chemical exposure trends among women of color
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Does your horse grab at the bit and either run to or after a jump? Does he rush down the lines? Or does he do a little dance to the jump? Here are a few things to try with your horse to slow him down while jumping.
Riding a horse that likes to rush around a course or to and from a fence is no fun. There could be a few reasons why your horse is acting this way. He may be sore or your tack might not fit properly. Your horse may be nervous about jumping a certain height.
Maybe going down a few inches will boost his confidence as well as yours.
Also, take into consideration his age; is he really ready to jump at this height? Before you start jumping your horse, he should be well schooled on the flat and can walk, trot and canter properly. Going back to the basics might help your horse to better understand and listen to your cues over fences.
Back to Basics
Before you take your horse over another fence
Cheap Benjamin Watson Jersey , there are three important things you and your horse should be able to do:
1.Your horse should have a nice steady rhythm. You should also be able to regulate his rhythm; make him speed up or slow down when asked. Your horse should go around the arena in a nice steady and even pace without rushing when heading towards to gate or slowing down when not asked.
2.You as a rider should be able to keep your horse forward and straight. How are you going to ask your horse to go to a fence if he is zig zagging and swerving all over the arena? You should have your legs on him and his front legs should be in line with his hindquarters and not all over the place.
3.You must also be able to give the proper cues and have control. If you do not have contact with your horse’s mouth then you have no control. You must be able to tell your horse what to do without him getting confused. You can’t kick him to go forward and pull back on the reins at the same time.
4.Do a lot of circles and transitions, such as walk to.
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