Sex Ratio Study

first_imgIn this particular study, her results could have implications on how childbearing women are instructed to care for themselves while pregnant. Research by associate professor Kristen Navara in the College of Agricultural and Environmental Sciences found that male fetuses are more likely to die if their mothers don’t gain enough weight during pregnancy. While Navara works within the UGA poultry science department, she also studies reproductive systems across several different species. The amount of weight a woman gains during pregnancy can be vitally important — especially if she’s carrying a boy — according to a study by researchers at the University of Georgia released today in PLOS ONE, an open access peer-reviewed journal published by the Public Library of Science. “I believe there is a lot to be learned by cross-referencing what different species do, and picking out the effects and mechanisms that are conserved among all of them,” she said. “The correlation was a near perfect relationship where the proportion of males rose with the number of pounds women gained during gestation,” Navara said. “To me, that tight of a relationship indicates that weight gain and the sex ratio at birth are, in fact, directly related and that the relationship isn’t driven by another related variable.” In her analysis of birth rate data, Navara found that for women who gained less than 20 pounds, the female-to-male birth rate ratio shifted to about 52-to-48 in favor of female babies. The shift is most likely due to the fact that male fetuses require more energy in the first weeks and months of gestation and have been shown to be more likely to succumb to adverse conditions in the womb, she said. Female babies, as evidenced by a greater rate of successful births, proved more resilient in the face of lower gestational weight gain than male babies. Navara believes that this correlation between weight gain and male fetal death could be stronger before six months of gestation, but data on male fetal deaths prior to six months of gestation was not available. “Fetuses are differentially susceptible to inadequate weight gain during pregnancy, and that puts males more at risk — at least at certain points of gestation,” said Navara, a reproductive endocrinologist in the college’s poultry science department. “I think that the next step in the research is to actively follow pregnant women, document their diets and weight gains, and see whether intake of particular dietary components can influence whether male and female fetuses survive,” Navara said. “This would also allow us to determine whether males are even more susceptible at earlier developmental stages than we were able to analyze in the current study. This would provide us with more information that would tell us ‘if you don’t get enough of X, this puts male babies at risk of stillbirth at stage Y.’” Navara’s work, in part, seeks to pinpoint the physiological reasons those shifts occur. “Currently, the recommendations for weight gain in pregnancy are the same whether the fetus is male or female, even though it is well known that they grow at different rates and have different metabolic rates. I think it is important to continue the research to determine whether women carrying boys should actually be eating more than women carrying girls in order to maximize the chances of the fetus’s survival.” On average, 105 boys are born for every 100 girls worldwide, but that number can deviate based on a large number of social, economical and physiological variables. At times of extreme environmental stress, like war, the birth rate of girls exceeds that of boys. Navara’s study is based on Centers for Disease Control and Prevention data on 46 million pregnancies over 23 years. She worked with the UGA Statistical Consulting Center to analyze the data. To read Navara’s findings in their entirety, see http://dx.plos.org/10.1371/journal.pone.0114304. For more information on the poultry science department at UGA, see poultry.uga.edu/.last_img read more

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Blue Ridge Parkway to Receive $3.1 Million Land Grant

first_imgThe Blue Ridge Parkway is set to expand by 1,654 acres in the Plott Balsam Mountains of Jackson County, North Carolina.The expansion is being made possible by a generous land grant from The Nature Conservancy valued at just over $3 million.The gifted land, which can be seen from the Waterrock Knob Overlook, is of particular importance to conservationists because it harbors two federally endangered mammals— the North Carolina flying squirell and the Indiana bat— and a rare type of rhododendron often called pinkshell azalea. It’s also home to nine other rare plant species as well as rare Red spruce and Fraser fir habitat.With this new land acquisition, which comes as the National Park Service celebrates its 100th anniversary, NPS hopes to improve the overall visitor experience of the Blue Ridge Parkway, an attraction that drew more that 15 million visitors last year alone.“Every time a property is conserved adjacent to the Blue Ridge Parkway, it improves the visitor experience by preserving scenic vistas, water quality, and habitat for wildlife,” Blue Ridge Parkway Superintendent Mark Woods told the Asheville Citizen-Times last month.In addition to hosting rare plants and animals, the newly donated tract, visible from Milepost 452, contains the highest summit in all of the Plott Balsam Range at an elevation of 6,292 feet.According to the Citizen Times, the land will be added to an adjacent 5,000 acres later this month to make up a new conservation area to be known as Waterrock Knob Park.Related Content:last_img read more

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Exceptional Lacey Teen Named Boys & Girls Clubs Of Thurston County…

first_imgFacebook9Tweet0Pin0Olympia, WA – January 31, 2012 – Ny’Shara Cox is a true example of an extraordinary teenager. At age 17, she has just been selected to compete against other Boys & Girls Club members from all over the state for the Washington Youth of the Year title, a $1,000 scholarship, and the chance to move on to the regional Youth of the Year competition. As the Youth of the Year for the Boys & Girls Clubs of Thurston County (BGCTC), Cox is among thousands of local youth across the country recognized by Boys & Girls Clubs of America (BGCA) for strong character, leadership skills and willingness to give back to the community.Being named Youth of the Year is the highest honor a Boys & Girls Club member can receive. The program—founded over 60 years ago— celebrates youth who have overcome enormous odds and demonstrated exceptional character and accomplishments. These deserving young people are recognized for service to their Club and community, academic performance and contributions to their family.Cox, a junior at Timberline High School, will represent the Boys & Girls Clubs of Thurston County at the Washington Youth of the Year competition at Seattle University on March 21. The winner will be announced by Governor Gregoire the next morning at a special reception held at the Governor’s mansion. Ny’Shara was chosen from a group of deserving peers from the three other area Clubs after a thorough selection process. The competition included giving a speech and being interviewed by the panel of judges—a mix of BGCTC supporters, board members and administrative staff. This is the second year in a row that a member of the Lacey Club has won.Cox has been a member at the Boys & Girls Club since 2006, and is now a part time staff member working in the art room. She loves working with the younger kids and, as the oldest of six siblings, is a natural born leader. Her experience at the Club started during a very difficult time in her life. “My mom was diagnosed with cancer when I was 8 years old,” Cox said. “Soon after she died I started coming to the Club. The Club helped me get through the loss of my mom by giving me so many chances to make her proud of me.”Ny’Shara has some big dreams for her future that blend her academic strengths with her favorite hobbies. She already has a college scholarship secured through the College Bound Scholarship program and plans to study business, fashion, and social work. Dance is also an important part of her life and she hopes to incorporate this into her professional career somehow as well.“Ny’Shara has been a true leader in our teen programs, helping to plan activities for teens that kept them interested and hungry for me,” says Shellica Trevino, Lacey Branch Director. “We are so proud of her many accomplishments at the Club, school, and her church.If Cox wins the state title, she will compete for Pacific Region Youth of the Year and an additional $10,000 scholarship. The five regional winners will travel to Washington, D.C. to compete for BGCA’s National Youth of the Year. The National Youth of the Year receives up to an additional $50,000 college scholarship and is installed by the President of the United States in an Oval Office ceremony. Ny’Shara is looking to follow in the footstep of Thurston County’s own 1984 BGCA National Youth of the Year recipient, Dr. Tony Agtarap. Dr. Agtarap is an orthopedic surgeon with Olympia Orthopaedic Associates and a founding board member of BGCTC.About Boys & Girls Clubs of Thurston CountyThe Boys & Girls Clubs of Thurston County is a youth development agency serving school-age youth 5-18 years old. Founded in 2001, four Club locations now serve more than 2,300 local youth with the mission of inspiring and enabling young people, especially those in greatest need, to realize their full potential as productive, responsible citizens. BGCTC offers programming in five key areas: Character & Leadership Development; Education & Career Development; Health & Life Skills; The Arts; and Sports, Fitness and Recreation. For more information about BGCTC, please visit www.bgctc.org.About Boys & Girls Clubs of AmericaFor more than 100 years, Boys & Girls Clubs of America (www.bgca.org) has offered a safe place for kids to learn and grow. Today, some 4,000 Boys & Girls Clubs serve more than 4.2 million young people through Club membership and community outreach. Clubs can be found throughout the country and on U.S. military installations worldwide, providing young people with guidance-oriented character development programs conducted by trained, professional staff. Key programs emphasize leadership development; education and career exploration; community service; technology training; financial literacy; health and life skills; the arts; sports, fitness and recreation; and family outreach. In a Harris Survey of alumni, 57 percent said the Club saved their lives. The national headquarters is located in Atlanta.last_img read more

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Did Sadio Mané just cause Virgil van Dijk to lose his first Ballon d’Or?

first_imgImage Courtesy: Getty ImagesAdvertisement w60vcNBA Finals | Brooklyn Vs94Wingsuit rodeo📽Sindre Ee91u( IG: @_aubreyfisher @imraino ) mxbjbWould you ever consider trying this?😱fuhCan your students do this? 🌚746p4zRoller skating! Powered by Firework The 2019 Ballon d’Or award was rightfully honoured to Lionel Messi, for a record sixth time. Liverpool FC’s Virgil van Dijk was proving to be tough competition, receiving 679 points, just 7 short of Messi. Coming in fourth position Sadio Mané, received 347 points. However, there’s a strange speculation that the Senegalese’s popularity in the African continent costed his Liverpool teammate the top spot.Advertisement Image Courtesy: Getty ImagesAn interesting statement made by Australian broadcaster Optus Sport on their official website suggests that Mané received all his votes from Africa, where fans preferred the 27 year old Senegalese winger ahead of the Dutch center back.The statement reads:Advertisement “Incredibly, Mane’s popularity in Africa, appears to have cost his teammate the Ballon d’Or.”“Across the rest of the world, Van Dijk and Messi dominated the top two spots of almost every vote slip, but in the continent the Senegalese winger calls home, many opted to vote for him in second place ahead of the Dutchman.”Advertisement “Considering the tiny margin that decided the winner, had Africa casted their votes in line with the rest of the world, Van Dijk would have emerged victorious.”Mané and van Dijk were both part of Klopp’s side that defeated Tottenham to lift the 2018-19 UEFA Champions League title in Wanda Metropolitano. Van Dijk, who was Man of the Match, was awarded the best defender of the season, and went onto win the PFA Players’ Player of the Year and Premier League Player of the Season. Advertisementlast_img read more

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Rossland/Trail 1 cruises to Bantam House Hockey Title

first_imgBy The Nelson Daily SportsBoth Nelson teams were shut out of the medals at the West Kootenay Minor Hockey Bantam House Championship during the weekend in Nelson.Nelson 1 and Nelson 2 failed to make it into the medal round after round robin action.Rossland/Trail 1 proved to be too much for the rest of the field as the squad dumped Beaver Valley 6-1 to capture the West Kootenay Minor Hockey Bantam House Championship Sunday at the NDCC Arena.In five games Rossland/Trail 1 out scored the opposition 37-6.Nelson 2 felt the sting of the Rossland/Trail 1 offence after the Silver City squad bounced its regional rivals 10-2 Thursday to open the 10-team tournament.Austin Meehan gave Nelson 1 a 1-0 lead before Rossland/Trail 1 scored the next seven goals. Jacob Timmermans scored the final goal for Nelson 2.Saturday, Nelson 2 saw the West Kootenay Wildcats score the winning goal in the final minute of the game to post a 3-2 victory. Spencer Szabo and Justin Willness scored for Nelson 2.Later in the day, Nelson 1 tried to play spoiler but fell victim to a few late goals as Beaver Valley skated away with a 6-4 victory.Szabo scored twice with Cole Sutherland and Peewee House call up Kyle Hall adding singles.Beaver Valley snapped a 4-4 tie with two goals in the final five minutes of the game to pull out the win.Nelson 1 suffered the same results at their crosstown rivals.Nelson 1 lost 5-3 to Rossland/Trail 2 to open the tournament. Micah May scored twice with Jentry Bojey adding a single for Nelson 2.Grand Forks then stole a 4-3 win Saturday before Nelson 1 routed Castlegar 8-1 to close out the tourney with a 1-2 record.Nathan Moore and Lucas Rangust scored three and two goals, respectively, to lead Nelson 2. Bojey, Liam Sharelove and May also scored for Nelson 1.May scored all three goals during loss by Nelson 1 to Grand [email protected]last_img read more

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Donegal beach stripped of its Blue Flag

first_imgOne of Donegal’s best-known beaches has failed to hold onto its Blue Flag status for 2019, while another local marina has gained the award for the first time.Bundoran Beach was unsuccessful in achieving the excellence award this year due to water quality.The beach facing Donegal Bay, which is popular with surfers and holidaymakers, was found to have ‘Good’ water quality for 2018 based on bacteriological tests. Beaches that qualify for Blue Flags must have ‘Excellent’ standards. Bertra Strand and Golden Strand in Co Mayo also lost Blue Flags in 2019.Meanwhile, Rathmullan Marina in Co Donegal has earned its first Blue Flag this year.Rathmullan MarinaThe Blue Flag is one of the world’s most recognised eco-labels and has operated in Ireland for over 30 years. The 80 Irish beaches and 8 marinas that have achieved this accolade in 2019 must adhere to specific criteria related to water quality, information provision, environmental education, safety and site management.  Donegal’s Blue Flag beaches for 2019 are: Carrickfinn, Culdaff, Downings, Fintra, Killahoey, Magherawarden (Portsalon) , Marble Hill, Murvagh, Portnoo/Narin, Rossnowlagh and Stroove.The Blue Flag Marinas are: Greencastle and RathmullanSixty two Irish beaches were awarded Green Coast Awards today for their clean environment, excellent water quality and natural beauty.The Donegal Green Coast Beaches for 2019 are: Magheroarty, Drumnatinney, Dooey and BallyheirnanDonegal beach stripped of its Blue Flag was last modified: May 23rd, 2019 by Rachel McLaughlinShare this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Skype (Opens in new window)Click to print (Opens in new window) Tags:blue flag 2019bundoranRathmullan Marinalast_img read more

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Worm Genes Show Non-Evolutionary Pattern

first_imgBiologists at New York University compared genes of roundworms to look for evidence of evolutionary ancestry.  What they found was not what they expected.  They found more genetic variation between outwardly-similar worms than between mice and men.  Their results were published online in PNAS June 7.1    The roundworm Caenorhabditis elegans is a model lab organism for genetic studies.  Kiontke et al. compared it with 7 other worms of the same genus and four other related species.  They first devised a family tree of the worms, based on commonly-accepted phylogenetic techniques.  Despite the fact that only subtle morphological differences exist between most of the species, they found major differences in intron counts (with intron loss apparently much more frequent than intron gain).  They also deduced that a specialized form of hermaphroditism (ability to self-fertilize) evolved separately in two species, C. elegans and C. briggsae, by convergent evolution.  Summarizing all the differences they found, they stated with obvious surprise that “despite the lack of marked morphological diversity, more genetic disparity is present within this one genus than has occurred within all vertebrates.”    The amount of genetic diversity between these worms is all the more surprising considering the impact one change can sometimes have.  In another paper published in PNAS the same day,2 a team of scientists studied a genetic disease called progeria that makes children die of old age at 13.  The disease is caused by a single point mutation in one spot, the lamin A gene, that is important in maintaining the structure of the nucleus.    Why the worms show so much genetic diversity despite little outward visible difference was puzzling to the biologists.  They postulated it might be due to stabilizing selection (influences that, despite genetic changes, produce results analogous to treading water or running in place).  Alternatively, “developmental constraints may limit the ‘evolvability’ of Caenorhabditis,” they suggested.  Or maybe the worms’ molecular clock ticks at much higher rates than in higher organisms, although they dispute the idea.    They leave it as an unsolved puzzle how similar-looking worms could show more genetic diversity than vertebrates (including mice, rats, hamsters, zebrafish and humans).  “It had been noted previously that the genetic distance between humans and chimpanzees seemed too small to account for their substantial organismal differences.  However,” they observe, “the situation is strikingly reversed in Caenorhabditis.”1Kiontke et al., “Caenorhabditis phylogeny predicts convergence of hermaphroditism and extensive intron loss,” Proceedings of the National Academy of Sciences USA, 10.1073/pnas.0403094101, published online before print June 7, 2004.2Goldman et al., “Accumulation of mutant lamin A causes progressive changes in nuclear architecture in Hutchinson-Gilford progeria syndrome,” Proceedings of the National Academy of Sciences USA, 10.1073/pnas.0402943101, published online before print June 7, 2004.Molecular phylogenetics is not providing the evidence of common ancestry for which evolutionists had hoped.  Since it looks like an exercise in futility, can we move on to better things now? (see yesterday’s headline, for instance.)(Visited 5 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

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How to Tell an Evolutionary Story

first_imgThanks to Science Daily, we now know that “Evolutionary Origin Of Mammalian Gene Regulation Is Over 150 Million Years Old.”  The proof is easy.  It is so easy, in fact, that no proof is necessary.  One can merely assume it is true.  Trust them; they are scientists, after all.Here is how the E word evolution was used in the article:The findings, reported online in Nature Genetics, have provided new insights into the evolution of genomic or parental imprinting and epigenetic regulation in mammals.Imprinting is thought to have evolved because of genetic conflict that influences the allocation of resources from parents to offspring.The apparent absence of genomic imprinting in monotremes and presence in eutherians and marsupials suggests that imprinting has evolved at the boundary of monotremes and therians’ divergence. Interestingly, imprinting evolution paralleled the apparition of the placenta and implantation.Hence, it is possible that imprinting and placentation co-evolved in the therian ancestor.The next stage is to look for the IGF2-H19 locus in another branch of mammals’ evolution…Recent evidence suggests that therians diverged from the egg-laying monotremes like the platypus approximately 180 million years ago, and then split into the eutherian and marsupials infra-classes around 150 million years ago.Hence the … consortium will concentrate its efforts in obtaining the sequence of the monotreme IGF2 locus to provide further insights into the imprinting evolution and the mysteries of gene regulation in these curious creatures which carry mammalian, bird-like and reptilian characteristics.Apparently the members of the consortium felt it superfluous to explain how the gene regulatory toolkit emerged through a random process of mutation and selection.  Science Daily was satisfied.  It summarized the paper by saying, “Scientists … have found that a complex, highly conserved and extremely important mechanism of controlling genes is over 150 million years old.”Evolution is such a wonderful story.  It explains everything.  It conjures up such marvelous apparitions of mythical worlds in the far distant past.  Evolution is so versatile.  It mixes things up rapidly but then saves other things for 150 million years.  Who would have ever thought up such things.  Aren’t you glad we have the shamans to comfort us with their hidden wisdom?  Think how hard life would be if we actually had to think for ourselves.(Visited 8 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

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New Android Nexus 7 Tablet Leaked By Best Buy Before Google Announcement

first_imgdan rowinski Related Posts Role of Mobile App Analytics In-App Engagement Why IoT Apps are Eating Device Interfaces What it Takes to Build a Highly Secure FinTech … In conjunction with the Nexus 7, Google will also likely announce the third major version of Android Jelly Bean, this time version 4.3. Jelly Bean was announced by Google last year with version 4.1 and updated in the fall (when Google announced the Nexus 4 smartphone, updated Nexus 7 and a 10-inch Nexus 10 tablet) to version 4.2. Jelly Bean 4.3 is expected to only have nominal new features. These updates might include a camera app for the Nexus 7 to go along with the new back camera, Bluetooth Low Energy and new advanced graphic effects with OpenGL for Embedded Systems 3.0, according to leaks about the new Jelly Bean that surfaced last week. We are still awaiting a major upgrade to Android from Google, which is likely to be named Key Lime Pie and be version 5.0. This fall is the likely release time for Key Lime Pie, in time for Google to release new gadgets for the holiday shopping season.We will be on hand for Google’s announcement today in San Francisco. Stay tuned for all the new features in Android coming today. Let us know in the comments what you want to see in a new version of Android. Are you going to buy a new Nexus 7?Top image: Original Nexus 7 by Dan Rowinski – Side image: Best Buy 32 GB Nexus 7 available for pre-order Tags:#Android#Google#Nexus Google will bring a new Android tablet to market today and we know just about everything about it before it has even been announced.Gadget retailer Best Buy is stealing some of Google’s thunder this morning by putting up a pre-order page for a new Nexus 7 which will likely be announced by the company at an event in San Francisco at noon Eastern Time today. The Nexus 7 will come in two varieties—16 GB and 32 GB—and be priced at $229.99 and $269.99 respectively.The Nexus 7 will still be a 7-inch tablet like the original versions released by Google in the summer and fall of last year. The internal specs will get a bump with 2 GB of RAM and a 1.5GHz Qualcomm Snapdradon S4 Pro processor. The new Nexus 7s will also get a back camera at 5 megapixels, bringing the camera qualities on par with other similar tablets on the market, such as the Galaxy Tab 3. The Rise and Rise of Mobile Payment Technologylast_img read more

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Drake crashed his cousins high school prom

first_imgLondon, May 16 (PTI) Rapper Drake has travelled all the way to Memphis to escort his cousin, Jalaah Moore, and her date to a prom night.The “Hotline Bling” singer bought the teen and her date custom outfits and even ordered white Rolls Royce for them, reported TMZ.The pair sported matching gold ensembles, while Drake opted for an all-black suit that included a turtleneck as he chaperoned the students to Fairley High Schools prom.The 30-year-old record producer also took to social media to mark the special family occasion by posting a snapshot of the high school couple sitting in a booth.”Prom 2017 #FairleyHighSchool #901 #YoungLove,” he captioned the picture. PTI SSN SSNlast_img read more

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