Tag Archives: male

Stegosaurus plates provide first solid evidence that male, female dinosaurs looked different

By Guest PostMay 12, 2015Nature, Scienceac cleaning services, air adapted environment, alveolar bone loss, birth control pills, brontosaurus, evidence, green environment, gum inflammation, hobby, hobby business, launching a business, legionnaires ailment, life history tradeoffs, male, monetize hobby, online business, online geniuses, oral care practices, oral health, pregnancy gingivitis

The discovery of a single anatomical difference between males and females of a species of Stegosaurus provides some of the most conclusive evidence that some dinosaurs looked different based on sex, according to new research.

Princeton University research published in the journal PLoS ONE found that the back plates of the species Stegosaurus mjosi came in two varieties that indicated the animal’s sex — short and wide, and tall and narrow. Females had one type of plate and males donned the other. The lack of a particular female-specific bone tissue found in birds and some dinosaurs, however, made it difficult to determine which sex had which plate type. (more…)

Sexual conflict affects females more than males, says new research on beetles

By Guest PostApril 28, 2014Natureashish chouhan, cdk2na, female, fischereidruck, fuel cell technology, heat pump, krabbenfischerei, male, mating, p16, pattern, smad4, university of exeter, vessel monitoring system, xergy inc

Researchers at the University of Exeter have found that sexual conflict over mating impacts the parental care behaviour and reproductive productivity of burying beetles.

These beetles have surprisingly complex parental care, similar in form to that provided by birds such as robins or blackbirds, with offspring begging to be fed by touching parents, who respond by regurgitating partially digested food.

Both males and females provide parental care, but females are the primary care givers, as in humans. So anything that affects the ability of females to provide parental care, such as costly mating, is likely to reduce overall reproductive productivity. (more…)

Pronunciation of ‘s’ sounds impacts perception of gender, CU-Boulder researcher finds

By Guest PostJanuary 7, 2013General, Sciencebay area, biological difference, colorado boulder, female, high frequency s, kira hall, lal zimman, larynx, linguist, lower frequency, male, perception of gender, pitch, s sounds, san francisco, socio biological complexity, style of speech, throat, transgender people, university, voice, wenner-gren foundation

A person’s style of speech — not just the pitch of his or her voice — may help determine whether the listener perceives the speaker to be male or female, according to a University of Colorado Boulder researcher who studied transgender people transitioning from female to male.

The way people pronounce their “s” sounds and the amount of resonance they use when speaking contributes to the perception of gender, according to Lal Zimman, whose findings are based on research he completed while earning his doctoral degree from CU-Boulder’s linguistics department. (more…)

Jan. 8-22: ‘The Abolitionists’

By Guest PostJanuary 2, 2013Culture13th amendment, 1863, 1865, abolitionist movement, american history, angelina grimke, beyond lincoln, black, black abolitionist, civil rights, documentary, drama, emancipation proclamation, end slavery, erica armstrong dunbar, female, frederick douglass, harriet beecher stowe, historian, john brown, male, pbs, slavery, the abolitionists, university of delaware, white, william lloyd garrison

UD’s Armstrong Dunbar a featured expert in PBS series ‘The Abolitionists’

The Abolitionists, airing on PBS this month, is timed to coincide with the 150th anniversary of the Emancipation Proclamation, but it offers viewers “a real understanding of the complexities of what it took to end slavery” beyond Lincoln’s proclamation itself, a University of Delaware historian featured in the series says.

Erica Armstrong Dunbar, associate professor of history with joint appointments in Black American Studies and in women and gender studies, was approached by creators of the three-part series to provide her perspective on the issues and individuals featured. The Abolitionists is part of the “American Experience” series and is scheduled to air Tuesday nights, Jan. 8, 15 and 22. (more…)

Female Pulitzer Prize Winners Require Higher Qualifications, MU Study Finds

By Guest PostOctober 29, 2012Culture, General, Mediachinese university, compensational equality period, exclusionary period, female, formal equality period, francis lee, gender disparities, hong kong, ivy league, journalism, journalistic industry, male, metropolitan city, missouri, new york times, prestigious awards, pulitzer prize, society, statistical difference, stratification, university, US, winner, yong volz

Gender disparity in journalism still exists, but is improving

COLUMBIA, Mo. —The Pulitzer Prize in Journalism is one of the world’s most prestigious awards. Despite progress in the last few decades, gender disparities in the field of journalism have existed as long as the profession has. Now, a University of Missouri researcher has found that female Pulitzer Prize winners are more likely to have greater qualifications than their male counterparts in order to win the coveted award.

In a study to be published in Journalism and Mass Communication Quarterly, Yong Volz, an assistant professor of journalism studies in the MU School of Journalism, along with Francis Lee of the Chinese University of Hong Kong, studied biographical data from all 814 historical winners of the Pulitzer Prize from 1917 to 2010. They found that the majority of the 113 female Pulitzer Prize winners enjoyed access to greater resources than the average male winner. (more…)

African-American Males Most Likely to Lose Academic Scholarships, MU Study Finds

By Guest PostSeptember 3, 2012Culture, Education, Generalacademic success, african american, charles menifield, culture, dormitories, Environment, holistic approach, hope scholarships, male, missouri, retention rate, scholarship, tennessee residents, university

MU researcher recommends a “holistic” approach to student scholarship retention

COLUMBIA, Mo. — College student retention and low graduation rates are the most significant problems associated with state-provided financial aid. Now, a University of Missouri researcher has found that African-American males are the most likely to lose state lottery-funded scholarships with academic stipulations. Charles Menifield, a professor in the Truman School of Public Affairs at MU, found that more than 50 percent of African-American males lost state-funded scholarships over the course of a four-year academic career.

“Race turns out to be one of the best predictors of scholarship retention rates,” Menifield said. “This research strongly suggests that colleges and universities that desire to maintain diversity should at minimum target minority students, particularly African-American males, and determine how best to improve academic success.” (more…)

UCLA Biologists Reveal Potential ‘Fatal Flaw’ In Iconic Sexual Selection Study

By Guest PostJune 27, 2012Scienceangus john bateman, charles darwin, common fruit fly, curly wings, descent of man, dna analysis, double mutant offspring, drosophila melanogaster, eastern bluebirds, english geneticist, evolutionary advantage, fatal flaw, female, female behavior, fruit flies, kim derose, male, mate, molecular genetics, mutation, paradigms, patricia adair gowaty, promiscuous, sexual selection, wyatt anderson, yong kyu kim

A classic study from more than 60 years ago suggesting that males are more promiscuous and females more choosy in selecting mates may, in fact, be wrong, say life scientists who are the first to repeat the historic experiment using the same methods as the original.

In 1948, English geneticist Angus John Bateman published a study showing that male fruit flies gain an evolutionary advantage from having multiple mates, while their female counterparts do not. Bateman’s conclusions have informed and influenced an entire sub-field of evolutionary biology for decades.

“Bateman’s 1948 study is the most-cited experimental paper in sexual selection today because of its conclusions about how the number of mates influences fitness in males and females,” said Patricia Adair Gowaty, a distinguished professor of ecology and evolutionary biology at UCLA. “Yet despite its important status, the experiment has never been repeated with the methods that Bateman himself originally used, until now. (more…)

Study Finds Significant Skull Differences Between Closely Linked Groups

By Guest PostApril 15, 2012Scienceann ross, ashley humphries, biohistorical context, coimbra, coimbra female, craniofacial characteristic, facial feature, female, female skull, forensic anthropologist, immigrant, intraorbital distance, lisbon, male, male skull, portugal, portuguese women, skeletal remain, skull

In order to accurately identify skulls as male or female, forensic anthropologists need to have a good understanding of how the characteristics of male and female skulls differ between populations. A new study from North Carolina State University shows that these differences can be significant, even between populations that are geographically close to one another.

The researchers looked at the skulls of 27 women and 28 men who died in Lisbon, Portugal, between 1880 and 1975. They also evaluated the skulls of 40 women and 39 men who died between 1895 and 1903 in the rural area of Coimbra, just over 120 miles north of Lisbon. (more…)