Socioeconomic Dynamics of Gender Disparity in Childhood Immunization in India, 1992–2006

PubMed Central

Prusty, Ranjan Kumar; Kumar, Abhishek

2014-01-01

Background Recent evidence indicated that gender disparity in child health is minimal and narrowed over time in India. However, considering the geographical and socio-cultural diversity in India, the gender gap may persist across disaggregated socioeconomic context which may be masked by average level. This study examines the dynamics of gender disparity in childhood immunization across regions, residence, wealth, caste and religion in India during 1992–2006. Method We used multi-waves of the cross-sectional data of National Family Health Survey conducted in India between 1992–93 and 2005–06. Gender disparity ratio was used to measure the gender gap in childhood immunization across the selected socioeconomic characteristics. Multinomial regression analysis was used to examine the gender gap after accounting for other covariates. Result Results indicate that, at aggregate level, gender disparity in full immunization is minimal and has stagnated during the study period. However, gender disparity – disfavouring female children – becomes apparent across the regions, poor households, and religion - particularly among Muslims. Adjusted gender disparity ratio indicates that, full immunization is lower among female than male children of the western region, poor household and among Muslims. Between 1992–93 and 2005–06, the disparity in full immunization had narrowed in the northern region whereas it had, astonishingly, increased in some of the western and southern states of the country. Conclusion Our findings emphasize the need to integrate gender issues in the ongoing immunization programme in India, with particular attention to urban areas, developed states, and to the Muslim community. PMID:25127396

The role of school performance in narrowing gender gaps in the formation of STEM aspirations: a cross-national study.

PubMed

Mann, Allison; Legewie, Joscha; DiPrete, Thomas A

2015-01-01

This study uses cross-national evidence to estimate the effect of school peer performance on the size of the gender gap in the formation of STEM career aspirations. We argue that STEM aspirations are influenced not only by gender stereotyping in the national culture but also by the performance of peers in the local school environment. Our analyses are based on the Program for International Student Assessment (PISA). They investigate whether 15-year-old students from 55 different countries expect to have STEM jobs at the age of 30. We find considerable gender differences in the plans to pursue careers in STEM occupations in all countries. Using PISA test scores in math and science aggregated at the school level as a measure of school performance, we find that stronger performance environments have a negative impact on student career aspirations in STEM. Although girls are less likely than boys to aspire to STEM occupations, even when they have comparable abilities, boys respond more than girls to competitive school performance environments. As a consequence, the aspirations gender gap narrows for high-performing students in stronger performance environments. We show that those effects are larger in countries that do not sort students into different educational tracks.

Unisex Math: Narrowing the Gender Gap.

ERIC Educational Resources Information Center

Tapia, Martha; Marsh, George E., II

This study examined gender differences in attitudes toward mathematics of undergraduate students. The Attitudes Toward Mathematics Instrument (ATMI) was administered to students enrolled in introductory mathematics classes (Pre-Calculus, Calculus, and Business Calculus) at two Southeast universities, one a large state university and the other one…

Bridging the Gender Gap: The demographics of scientists in the USDA Forest Service and academia

Treesearch

Christel C. Kern; Laura S. Kenefic; Susan L. Stout

2015-01-01

Past research has established that diverse scientific communities foster innovation and problem solving more effectively than communities with a narrow range of knowledge, skills, and experience. However, gender diversity among scientists is limited, particularly in natural-resource fields. We compared data on scientist gender and rank from the US Department of...

Women and Men Go to University: Mathematical Background and Gender Differences in Choice of Field in Higher Education.

ERIC Educational Resources Information Center

Ayalon, Hanna

2003-01-01

Using data on applicants to an Israeli university, researchers examined whether high school course-taking patterns affected gender segregation in higher education. Women were underrepresented among applicants to mathematics-related studies. Mathematical background in high school effectively narrowed the gender gap in applying to selective and…

Public Perceptions of the Pay Gap

ERIC Educational Resources Information Center

Hill, Catherine; Silva, Elena

2005-01-01

Women have made gains toward closing the gender pay gap during the past two decades. Much of the progress occurred during the 1980s, with smaller gains in the 1990s (Institute for Women's Policy Research 2004). Women's achievements in higher education are partly responsible for narrowing the pay gap in the 1980s and 1990s. As more women earned…

Career Attainment among Healthcare Executives: Is the Gender Gap Narrowing?

ERIC Educational Resources Information Center

Branin, Joan Julia

2009-01-01

Health care occupations are expected to be among the fastest growing professions in the next ten years. With such incredible growth expected in employment and wages, and with women's participation in the industry remaining strong, are women in the health care industry, particularly those in health care administration, experiencing a narrowing of…

Convergence in Sleep Time Accomplished? Gender Gap in Sleep Time for Middle-Aged Adults in Korea

PubMed Central

Eun, Ki-Soo

2018-01-01

Although the gender gap in sleep time has narrowed significantly in the last decade, middle-aged women between ages 35 and 60 still sleep less than their male counterparts in Korea. This study examines and provides evidence for factors contributing to the gender gap in this age group. Using Korean Time Use Survey (KTUS) data from 2004, 2009 and 2014, we find that middle-aged women’s difficulty in managing work-life balance and traditional role expectations placed upon women are the main causes of the gender gap in sleep time. The decomposition analysis reveals that the improved socioeconomic status and recent changes in familial expectations for women may have helped them sleep more than in the past. However, there remain fundamental differences in attitude and time use patterns between men and women that prevent middle-aged women from getting the same amount of sleep. PMID:29671824

Convergence in Sleep Time Accomplished? Gender Gap in Sleep Time for Middle-Aged Adults in Korea.

PubMed

Cha, Seung-Eun; Eun, Ki-Soo

2018-04-19

Although the gender gap in sleep time has narrowed significantly in the last decade, middle-aged women between ages 35 and 60 still sleep less than their male counterparts in Korea. This study examines and provides evidence for factors contributing to the gender gap in this age group. Using Korean Time Use Survey (KTUS) data from 2004, 2009 and 2014, we find that middle-aged women’s difficulty in managing work-life balance and traditional role expectations placed upon women are the main causes of the gender gap in sleep time. The decomposition analysis reveals that the improved socioeconomic status and recent changes in familial expectations for women may have helped them sleep more than in the past. However, there remain fundamental differences in attitude and time use patterns between men and women that prevent middle-aged women from getting the same amount of sleep.

Gender Differences in Respiratory Morbidity and Mortality of Preterm Neonates

PubMed Central

Townsel, Courtney Denise; Emmer, Sawyer F.; Campbell, Winston A.; Hussain, Naveed

2017-01-01

For the past century, researchers have underscored the “disadvantage” observed in respiratory morbidity and mortality of male newborns. In this contemporary review, we examine gender differences in preterm infant respiratory morbidity and mortality specifically appraising differences in the very low birth weight (VLBW) population as well as the late preterm (LPT) population. In the era of postnatal surfactant and antenatal corticosteroids, the gender gap in neonatal outcomes has not narrowed. Structural, physiologic, and hormonal sex differences may be at the root of this disparity. Further exploration into the origin of gender differences in respiratory morbidity and neonatal mortality will shape future therapies. These therapies may need to be gender specific to close the gender gap. PMID:28194395

Technology in Learning: Narrowing the Gender Gap?

ERIC Educational Resources Information Center

Kaino, Luckson Muganyizi

2008-01-01

The introduction of Information and Communication Technology (ICT) into the school curricula raised some hopes that it could minimize gender differences in learning. The interactive nature of ICT materials was believed to provide a favorable environment especially for girls to learn. This article reports the findings of the study that analyzed…

Women in Academic Science: Experimental Findings from Hiring Studies

ERIC Educational Resources Information Center

Ceci, Stephen J.

2018-01-01

Although women are underrepresented in the most mathematically intensive fields, the gender gap in these fields has narrowed over the past 2 decades. In my E. L. Thorndike address I summarized the temporal trends in sex differences for 8 fields and considered factors that drive both the underrepresentation of women and its recent narrowing. I…

Gender difference in health and its determinants in the old-aged population in India.

PubMed

Dhak, Biplab

2009-09-01

This paper examines the gender differential in health and its socioeconomic and demographic determinants in the old-age population of India based on the National Sample Survey 60th round data collected in 2004. As in developed countries, older women in India report poorer self-reported health and experience greater immobility compared with men. Stepwise logistic regression analysis shows that the gender differential in health is linked to various socioeconomic and demographic variables and that the gender gap could be narrowed with appropriate policy intervention. Specifically, paying special attention towards improving the socioeconomic status of widowed/separated women could attenuate a substantial portion of the observed gender gap in the health of the old-age population.

Is "Gender Gap" Narrowing?

ERIC Educational Resources Information Center

Science, 1991

1991-01-01

The question as to whether males and females have different kinds of intellectual abilities is addressed. The evidence that there are some differences in cognition and perception between men and women is reviewed. (KR)

Women's Earnings: An Overview.

ERIC Educational Resources Information Center

Bowler, Mary

1999-01-01

Over the past 20 years, women's real earnings rose whereas those of men declined. Even as the gender pay gap narrowed, earnings differences between white women and black and Hispanic women continued to grow. (Author)

Adolescent Girls' Experiences and Gender-Related Beliefs in Relation to Their Motivation in Math/Science and English

ERIC Educational Resources Information Center

Leaper, Campbell; Farkas, Timea; Brown, Christia Spears

2012-01-01

Although the gender gap has dramatically narrowed in recent decades, women remain underrepresented in many science, technology, engineering, and mathematics (STEM) fields. This study examined social and personal factors in relation to adolescent girls' motivation in STEM (math/science) versus non-STEM (English) subjects. An ethnically diverse…

Jumpstarting Jill: Strategies to Nurture Talented Girls in Your Science Classroom

ERIC Educational Resources Information Center

Heilbronner, Nancy N.

2008-01-01

Women are making progress in many areas of science, but a gender gap still remains, especially in physics, computer science, and engineering, and at advanced levels of academic and career achievement. Today's teachers can help narrow this gap by instilling a love for science in their female students and by helping them to understand and develop…

Gender differences in pension wealth: estimates using provider data.

PubMed

Johnson, R W; Sambamoorthi, U; Crystal, S

1999-06-01

Information from pension providers was examined to investigate gender differences in pension wealth at midlife. For full-time wage and salary workers approaching retirement age who had pension coverage, median pension wealth on the current job was 76% greater for men than women. Differences in wages, years of job tenure, and industry between men and women accounted for most of the gender gap in pension wealth on the current job. Less than one third of the wealth difference could not be explained by gender differences in education, demographics, or job characteristics. The less-advantaged employment situation of working women currently in midlife carries over into worse retirement income prospects. However, the gender gap in pensions is likely to narrow in the future as married women's employment experiences increasingly resemble those of men.

State Test Score Trends through 2008-09, Part 2: Slow and Uneven Progress in Narrowing Gaps

ERIC Educational Resources Information Center

Kober, Nancy; Chudowsky, Naomi; Chudowsky, Victor

2010-01-01

After eight years of implementing the federal No Child Left Behind Act (NCLB) and other school reforms, how much progress have states, school districts, and schools made in raising achievement for students from all backgrounds and closing achievement gaps based on race, ethnicity, income, and gender? To help answer this question, the Center on…

How Do Pre-Kindergarteners Spend Their Time? Gender, Ethnicity, and Income as Predictors of Experiences in Pre-Kindergarten Classrooms

ERIC Educational Resources Information Center

Early, Diane M.; Iruka, Iheoma U.; Ritchie, Sharon; Barbarin, Oscar A.; Winn, Donna-Marie C.; Crawford, Gisele M.; Frome, Pamela M.; Clifford, Richard M.; Burchinal, Margaret; Howes, Carollee; Bryant, Donna M.; Pianta, Robert C.

2010-01-01

The current paper considers how children spend their time in state-funded pre-kindergarten programs and how time use relates to ethnicity, gender, and family income, based on the assumption that how time is spent in pre-kindergarten is relevant for the programs' success in narrowing achievement gaps. Classroom observations of 2061 children in 652…

Assessing Trends in Women’s Violence via Data Triangulation: Arrests, Convictions, Incarcerations, & Victim Reports

PubMed Central

Schwartz, Jennifer; Steffensmeier, Darrell J.; Feldmeyer, Ben

2014-01-01

Constructionist theories suggest the national rise in female violence arrests may be policy-generated because arrest statistics are produced by violent behavior and changing official responses (e.g., net-widening enforcement policies). Normative theories attribute the rise to female behavior changes (e.g., in response to increased freedoms or hardships). We examine whether any narrowing of the arrest gender gap is borne out across offense types of varying measurement reliability, in victimization data, and across two post-arrest criminal justice stages. Advanced time-series analyses over 1980–2003 support the constructionist position – first, all sources show little or no increase in women’s rates for the more reliably measured offenses of homicide and robbery, and for rape; second, the assault gender gap narrows for arrests, but holds stable in victimization data; third, the assault gender gap narrows moderately for convictions, but is stable for imprisonment, indicating spill-over effects of more expansive arrest policies. Several factors have produced greater female representation in “criminal assault” arrests including (i) proactive policing targeting and formally responding to minor violence and in private contexts, (ii) interventionist developmental epistemologies that blur distinctions among violence types and circumstances, (iii) the rise of social movements recognizing “hidden” victims, (iv) law and order political messages stressing greater accountability, and (v) the somewhat greater decline in male compared to female violence in the late 1990s. The problem of women’s violence is largely a social construction. Rather than women becoming more violent, changes in the management of violence increasingly mask differences in the violence levels of women and men. PMID:25589794

Impact of interactive engagement on reducing the gender gap in quantum physics learning outcomes among senior secondary school students

NASA Astrophysics Data System (ADS)

Adesina Adegoke, Benson

2012-07-01

In this study, the author examines the extent to which an interactive engagement approach can reduce the gender gap in senior secondary school (SSS) (age 16-18 years) students' learning outcomes in quantum physics. One hundred and twenty one (male = 65; female = 56) SSS 3 students participated in this study. They were randomly selected from two senior secondary schools from the Ibadan North Local Government Area, Oyo State, Nigeria. There were two groups: the experimental group (interactive engagement) and the control group (traditional lecture method). Prior to the commencement of the experiment, students' scores in a previous examination conducted by their schools were collected and analysed. This was to determine the extent to which gender disparity had been narrowed after the experiment. Three hypotheses were tested. The data collected were analysed using analysis of covariance (ANCOVA). The results show that, generally, the students in the interactive engagement group had higher mean scores in the quantum physics achievement test than their colleagues in the control group. Among the participants in the interactive engagement group, female students had a slightly higher mean score than their male counterparts. These results show that with interactive engagement, gender disparity in quantum physics learning outcomes among students can be narrowed. The author recommends that physics teachers should adopt an interactive engagement approach in physics classes.

The impact of smoking on gender differences in life expectancy: more heterogeneous than often stated

PubMed Central

Wegner-Siegmundt, Christian

2015-01-01

Background: Throughout industrialized countries, tobacco consumption is seen as the predominant driver of both the trend and the extent of gender differences in life expectancy. However, several factors raise doubts to this generalization. We hypothesize that the impact of smoking on the gender gap is context-specific and differs between populations. Methods: We decompose the gender differences in life expectancy into fractions caused by smoking and other non-biological factors for 53 industrialized countries and the period 1955–2009 to assess the significance of smoking among the causes that can be influenced by direct or indirect interference. Results: The trend of the gender gap can indeed be attributed to smoking in most populations of the western world. However, with regard to the overall extent of male excess mortality, smoking is the main driver only in the minority of the studied populations. While the impact of smoking to gender differences in life expectancy declines in all populations, the contribution of other non-biological factors is in most cases higher at the end than at the beginning of the observation period. Conclusions: Over-generalized statements suggesting that smoking is the main driver of the gender gap in all populations can be misleading. The results of this study demonstrate that—regardless of the prevailing effect of smoking—many populations have still remarkable potentials to further narrow their gender gaps in life expectancy. Although measures to further reduce the prevalence of tobacco consumption must be continued, more attention should be directed to the growing importance of other non-biological factors. PMID:25505018

Gender differences in tobacco use.

PubMed

Grunberg, N E; Winders, S E; Wewers, M E

1991-01-01

Gender differences in overall tobacco use clearly exist. In general, men are more likely to use tobacco products than are women. However, this simple generalization, ignoring type of tobacco products, time, and culture, masks many more interesting gender differences in tobacco use. There are pronounced gender differences in tobacco use of specific tobacco products within some cultures but not others. Yet these differences have changed across time, including narrowing and widening of this gender gap, depending on culture and tobacco product. This article addresses these issues and presents possible psychosocial, biological, and psychobiological explanations for these phenomena. In addition, the implications of these differences and ways to learn more about these important differences are discussed.

Do Some Schools Narrow the Gap? Differential School Effectiveness Revisited

ERIC Educational Resources Information Center

Strand, Steve

2016-01-01

Relatively little research has explored whether schools differ in their effectiveness for different group of pupils (e.g. by ethnicity, poverty or gender), for different curriculum subjects (e.g. English, mathematics or science) or over time (different cohorts). This paper uses multilevel modelling to analyse the national test results at age 7 and…

Gender in clinical neuropsychology: practice survey trends and comparisons outside the specialty.

PubMed

Sweet, Jerry J; Lee, Catherine; Guidotti Breting, Leslie M; Benson, Laura M

2018-02-01

This paper describes gender-related trends within clinical neuropsychology, based primarily on recurrent practice surveys within the specialty and, to a lesser extent, job-related information from medical specialties and the general U.S. labor market. Chronological and cross-sectional analyses of professional practice survey data from 2005, 2010, and 2015 relevant to gender. As is common with survey data, descriptive analysis and independent samples t-tests were conducted. Longitudinal data allowed for examination of gender trends, as well as observations of change and stability of factors associated with gender, over time. Women have become dominant in number in clinical neuropsychology, and also comprise a vast majority of practitioners entering the specialty. Gender differences are noted in professional identity, work status, work settings, types of career satisfaction, and retirement expectations. Women are more likely to identify work environment and personal/family obstacles to aspects of career satisfaction. A gender pay gap was found at all time points and is not narrowing. As is true nationally, multiple factors appear related to the gender pay gap in clinical neuropsychology. Women in neuropsychology are now dominant in number, and their presence is strongly associated with specific practice patterns, such as greater institutional employment, less involvement in forensic practice, and strong involvement in pediatric practice, which may be maintaining the sizeable gender pay gap in neuropsychology. As the proportion of women neuropsychologists continues to increase, flexible work hours, and alternative means of remuneration may be needed to offset current disproportionate family-related responsibilities.

The widening gender gap in marijuana use prevalence in the U.S. during a period of economic change, 2002–2014

PubMed Central

Carliner, Hannah; Mauro, Pia M.; Brown, Qiana L.; Shmulewitz, Dvora; Rahim-Juwel, Reanne; Sarvet, Aaron L.; Wall, Melanie M.; Martins, Silvia S.; Carliner, Geoffrey; Hasin, Deborah S.

2017-01-01

Aim Concurrently with increasingly permissive attitudes towards marijuana use and its legalization, the prevalence of marijuana use has increased in recent years in the U.S. Substance use is generally more prevalent in men than women, although for alcohol, the gender gap is narrowing. However, information is lacking on whether time trends in marijuana use differ by gender, or whether socioeconomic status in the context of the Great Recession may affect these changes. Methods Using repeated cross-sectional data from the National Survey on Drug Use and Health (2002–2014), we examined changes over time in prevalence of past-year marijuana use by gender, and whether gender differences varied across income levels. After empirically determining a change point in use in 2007, we used logistic regression to test interaction terms including time, gender, and income level. Results Prevalence of marijuana use increased for both men (+4.0%) and women (+2.7%) from 2002 to 2014, with all of the increase occurring from 2007 to 2014. Increases were greater for men, leading to a widening of the gender gap over time (p < 0.001). This divergence occurred primarily due to increased prevalence among men in the lowest income level (+6.2%) from 2007 to 2014. Conclusion Our findings are consistent with other studies documenting increased substance use during times of economic insecurity, especially among men. Corresponding with the Great Recession and lower employment rate beginning in 2007, low-income men showed the greatest increases in marijuana use during this period, leading to a widening of the gender gap in prevalence of marijuana use over time. PMID:27875801

The widening gender gap in marijuana use prevalence in the U.S. during a period of economic change, 2002-2014.

PubMed

Carliner, Hannah; Mauro, Pia M; Brown, Qiana L; Shmulewitz, Dvora; Rahim-Juwel, Reanne; Sarvet, Aaron L; Wall, Melanie M; Martins, Silvia S; Carliner, Geoffrey; Hasin, Deborah S

2017-01-01

Concurrently with increasingly permissive attitudes towards marijuana use and its legalization, the prevalence of marijuana use has increased in recent years in the U.S. Substance use is generally more prevalent in men than women, although for alcohol, the gender gap is narrowing. However, information is lacking on whether time trends in marijuana use differ by gender, or whether socioeconomic status in the context of the Great Recession may affect these changes. Using repeated cross-sectional data from the National Survey on Drug Use and Health (2002-2014), we examined changes over time in prevalence of past-year marijuana use by gender, and whether gender differences varied across income levels. After empirically determining a change point in use in 2007, we used logistic regression to test interaction terms including time, gender, and income level. Prevalence of marijuana use increased for both men (+4.0%) and women (+2.7%) from 2002 to 2014, with all of the increase occurring from 2007 to 2014. Increases were greater for men, leading to a widening of the gender gap over time (p<0.001). This divergence occurred primarily due to increased prevalence among men in the lowest income level (+6.2%) from 2007 to 2014. Our findings are consistent with other studies documenting increased substance use during times of economic insecurity, especially among men. Corresponding with the Great Recession and lower employment rate beginning in 2007, low-income men showed the greatest increases in marijuana use during this period, leading to a widening of the gender gap in prevalence of marijuana use over time. Copyright © 2016. Published by Elsevier Ireland Ltd.

An Analysis of Gender Equity in the Federal Labor Relations Career Field.

ERIC Educational Resources Information Center

Baker, Bud; Wendt, Ann; Slonaker, William

2002-01-01

Government employment statistics indicate that the number of federal labor relations specialists declined 7% from 1991-2000; the proportion of women in the field grew from 42.2% to 50.9%; and the pay gap narrowed. The number of women in upper management rose 18% between 1991 and 1998. (Contains 31 references.) (SK)

Factors that Influence STEM-Promising Females' Decision to Attend a Non Research-Intensive Undergraduate Institution

ERIC Educational Resources Information Center

Miller, Roxanne Greitz; Hurlock, Ashley J.

2017-01-01

Non research-intensive institutions of higher education are effective at narrowing STEM gender gaps in major selection and persistence to degree completion, yet the decision to attend such a setting is likely seen as counterintuitive when such institutions typically have lower levels of research, financial resources, and total student enrollments…

Stereotype susceptibility narrows the gender gap in imagined self-rotation performance.

PubMed

Wraga, Maryjane; Duncan, Lauren; Jacobs, Emily C; Helt, Molly; Church, Jessica

2006-10-01

Three studies examined the impact of stereotype messages on men's and women's performance of a mental rotation task involving imagined self-rotations. Experiment 1 established baseline differences between men and women; women made 12% more errors than did men. Experiment 2 found that exposure to a positive stereotype message enhanced women's performance in comparison with that of another group of women who received neutral information. In Experiment 3, men who were exposed to the same stereotype message emphasizing a female advantage made more errors than did male controls, and the magnitude of error was similar to that for women from Experiment 1. The results suggest that the gender gap in mental rotation performance is partially caused by experiential factors, particularly those induced by sociocultural stereotypes.

Gender Equality from a European Perspective: Myth and Reality.

PubMed

Salinas, Patricia C; Bagni, Claudia

2017-11-15

In the past 50 years, significant progress in women's equality has been made worldwide. Western countries, particularly European countries, have implemented initiatives to attain a more gender-balanced workforce with the introduction of family friendly policies, by trying to narrow the gender pay gap and by promoting women's career progression. In academia, however, fewer women reach top leadership positions than those in the political arena. These findings suggest that academia needs to carefully evaluate why these new policies have not been very effective. In this NeuroView, we report on the progress made in higher education, the shortcomings, and how new initiatives hold great promise for improving gender equality in academia around the globe. Copyright © 2017 Elsevier Inc. All rights reserved.

Gender Gap in Science, Technology, Engineering, and Mathematics (STEM): Current Knowledge, Implications for Practice, Policy, and Future Directions

PubMed Central

Degol, Jessica L.

2016-01-01

Although the gender gap in math course-taking and performance has narrowed in recent decades, females continue to be underrepresented in math-intensive fields of Science, Technology, Engineering, and Mathematics (STEM). Career pathways encompass the ability to pursue a career as well as the motivation to employ that ability. Individual differences in cognitive capacity and motivation are also influenced by broader sociocultural factors. After reviewing research from the fields of psychology, sociology, economics, and education over the past 30 years, we summarize six explanations for US women’s underrepresentation in math-intensive STEM fields: (a) cognitive ability, (b) relative cognitive strengths, (c) occupational interests or preferences, (d) lifestyle values or work-family balance preferences, (e) field-specific ability beliefs, and (f) gender-related stereotypes and biases. We then describe the potential biological and sociocultural explanations for observed gender differences on cognitive and motivational factors and demonstrate the developmental period(s) during which each factor becomes most relevant. We then propose evidence-based recommendations for policy and practice to improve STEM diversity and recommendations for future research directions. PMID:28458499

Gender Gap in Science, Technology, Engineering, and Mathematics (STEM): Current Knowledge, Implications for Practice, Policy, and Future Directions.

PubMed

Wang, Ming-Te; Degol, Jessica L

2017-03-01

Although the gender gap in math course-taking and performance has narrowed in recent decades, females continue to be underrepresented in math-intensive fields of Science, Technology, Engineering, and Mathematics (STEM). Career pathways encompass the ability to pursue a career as well as the motivation to employ that ability. Individual differences in cognitive capacity and motivation are also influenced by broader sociocultural factors. After reviewing research from the fields of psychology, sociology, economics, and education over the past 30 years, we summarize six explanations for US women's underrepresentation in math-intensive STEM fields: (a) cognitive ability, (b) relative cognitive strengths, (c) occupational interests or preferences, (d) lifestyle values or work-family balance preferences, (e) field-specific ability beliefs, and (f) gender-related stereotypes and biases. We then describe the potential biological and sociocultural explanations for observed gender differences on cognitive and motivational factors and demonstrate the developmental period(s) during which each factor becomes most relevant. We then propose evidence-based recommendations for policy and practice to improve STEM diversity and recommendations for future research directions.

Do Some Schools Narrow the Gap? Differential School Effectiveness by Ethnicity, Gender, Poverty, and Prior Achievement

ERIC Educational Resources Information Center

Strand, Steve

2010-01-01

This study analyses the educational progress of an entire national cohort of over 530,000 pupils in England between age 7 in 2000 and age 11 in 2004. The results show that Black Caribbean boys not entitled to free school meals, and particularly the more able pupils, made significantly less progress than their White British peers. There is no…

Narrow band gap amorphous silicon semiconductors

DOEpatents

Madan, A.; Mahan, A.H.

1985-01-10

Disclosed is a narrow band gap amorphous silicon semiconductor comprising an alloy of amorphous silicon and a band gap narrowing element selected from the group consisting of Sn, Ge, and Pb, with an electron donor dopant selected from the group consisting of P, As, Sb, Bi and N. The process for producing the narrow band gap amorphous silicon semiconductor comprises the steps of forming an alloy comprising amorphous silicon and at least one of the aforesaid band gap narrowing elements in amount sufficient to narrow the band gap of the silicon semiconductor alloy below that of amorphous silicon, and also utilizing sufficient amounts of the aforesaid electron donor dopant to maintain the amorphous silicon alloy as an n-type semiconductor.

Design, Construction, Demonstration and Delivery of an Automated Narrow Gap Welding System.

DTIC Science & Technology

1982-06-29

DESIGN, CONSTRUCTION, DEMONSTRATION AND DELIVERY OF WE DA4I &NARROW GAP CONTRACT NO. NOOGOO-81-C-E923 TO DAVID TAYLOR NAVAL RESEARCH AND DEVELOPMENT...the automated * Narrow Gap welding process, is the narrow (3/8 - inch), square-butt joint *design. This narrow joint greatly reduces the volume of weld...AD-i45 495 DESIGN CONSTRUCTION DEMONSTRATION AiND DELIVERY OF RN 1/j AUrOMATED NARROW GAP WELDING SYSTEMI() CRC AUTOMATIC WELDING CO HOUSTON TX 29

Trends in suicidality among sexual minority and heterosexual students in a Canadian population-based cohort study

PubMed Central

Peter, Tracey; Edkins, Tamara; Watson, Ryan; Adjei, Jones; Homma, Yuko; Saewyc, Elizabeth

2017-01-01

Objectives Despite evidence from numerous studies that document disparities in suicidality for sexual minorities, few have investigated whether or not these trends have improved over time, which is the objective of the current study. Methods Using school-based population data over a 15-year period (1998 to 2013), multivariate logistic regressions were used to calculate age-adjusted odds ratios separately by gender. Interactions were included to test widening or narrowing disparities within orientation groups, which makes this one of the first studies to test whether gaps in disparities between heterosexual and sexual minorities have widened or narrowed over time. Results Results show that sexual minority youth are persistently at a greater risk for suicidal behaviour, a trend that has continued particularly for bisexual youth of both sexes. Results also suggest that the gap in suicidal behaviour is widening among some female sexual orientation groups, yet narrowing for other male sexual orientation groups. Conclusions These findings have important public health implications, especially since we see decreases in suicidal behaviour for heterosexual adolescents, but not in the same way for many sexual minority youth, despite advances in social acceptance of gay, lesbian, and bisexual issues in North America. PMID:29326961

Age and gender differences in self-esteem-A cross-cultural window.

PubMed

Bleidorn, Wiebke; Arslan, Ruben C; Denissen, Jaap J A; Rentfrow, Peter J; Gebauer, Jochen E; Potter, Jeff; Gosling, Samuel D

2016-09-01

Research and theorizing on gender and age differences in self-esteem have played a prominent role in psychology over the past 20 years. However, virtually all empirical research has been undertaken in the United States or other Western industrialized countries, providing a narrow empirical base from which to draw conclusions and develop theory. To broaden the empirical base, the present research uses a large Internet sample (N = 985,937) to provide the first large-scale systematic cross-cultural examination of gender and age differences in self-esteem. Across 48 nations, and consistent with previous research, we found age-related increases in self-esteem from late adolescence to middle adulthood and significant gender gaps, with males consistently reporting higher self-esteem than females. Despite these broad cross-cultural similarities, the cultures differed significantly in the magnitude of gender, age, and Gender × Age effects on self-esteem. These differences were associated with cultural differences in socioeconomic, sociodemographic, gender-equality, and cultural value indicators. Discussion focuses on the theoretical implications of cross-cultural research on self-esteem. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

Design, Construction, Demonstration and Delivery of an Automated Narrow Gap Welding System.

DTIC Science & Technology

1983-03-31

evaluated on the Narrow Gap welding system. By using the combinational qas shielding assembly, it is now possible to reduce the gas flow rates to a value...AD-A145 496 DESIGN CONSTRUCTION DEMONSTRATION AND DE IVER OF AN AUTOMATED NARROW GAP WELDING SYSTEM(U) CRC AUTOMATIC WELDING CO HODSTON SX 31 MAR 83...STANDARDS-963 - A CRC REPORT NO. NAV A/W 7 0PHASE 3 REPORT ON SDESIGN, CONSTRUCTION, DEMONSTRATION AND DELIVERY OF AN AUTOMATED NARROW GAP WELDING

Narrowing the Achievement Gap: A Case Study of an Urban School

ERIC Educational Resources Information Center

Lugo, Rosalinda

2010-01-01

The goal of this case study was to identify the cultural norms, practices, and programs of an urban school that narrowed the achievement gap. The reason for identifying these factors in a successful school was to add to the body of literature regarding the achievement gap and what a struggling school was able to do to narrow the gap. This case…

Widening inequalities in smoking initiation and cessation patterns: a cohort and gender analysis in France.

PubMed

Legleye, S; Khlat, M; Beck, F; Peretti-Watel, P

2011-09-01

This study investigates the evolution of educational inequalities in smoking initiation and cessation in France according to gender and birth cohort. We used a 2005 nationwide survey comprising 25,239 subjects aged 18-75 years. Three cohort groups were defined (born 1930-1945, 1946-1965 or 1966-1987). We compared their smoking histories until age 40 years with time-discrete logistic regressions. Educational differences in initiation and cessation were quantified using odds ratios and relative indices of inequality (RII), and the gender gap using odds ratios (gender ratios). For smoking initiation, in the oldest cohorts, no educational gradient appeared in men, but there was a positive gradient in women (RII=0.19); in the middle cohorts, a negative gradient emerged in men (RII=1.55), while the positive gradient reduced in women (RII=0.74); in the youngest cohorts, there was a strengthening of the negative gradient in men (RII=2.72), and the emergence of a negative gradient for women (RII=1.86). The gender ratio narrowed from the oldest cohorts (3.23) to the youngest (1.09), and diminished with increasing educational level within each cohort. For smoking cessation, the educational gradients were negative in both genders, with wider gaps in the youngest cohorts, and gender ratios below 1 reflecting more marked cessation dynamics in women. Women are at an earlier stage in the tobacco epidemic than men for initiation and at a later stage for cessation and social inequalities are widening. We believe that they will not decrease unless gender and the psycho-social aspects of smoking are considered in prevention campaigns. Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

Feminized Intergenerational Mobility Without Assimilation? Post-1965 U.S. Immigrants and the Gender Revolution.

PubMed

Park, Julie; Nawyn, Stephanie J; Benetsky, Megan J

2015-10-01

Women in the United States have made significant socioeconomic advances over the last generation. The second generation of post-1965 immigrants came of age during this "gender revolution." However, assimilation theories focus mainly on racial/ethnic trajectories. Do gendered trajectories between and within groups better capture mobility patterns? Using the 1980 decennial census and the 2003-2007 Current Population Survey (CPS), we observe the socioeconomic status of Latino and Asian immigrant parents and their second-generation children 25 years later. We compare the educational, occupational, and earnings attainment of second-generation daughters and sons with that of their immigrant mothers and fathers. We simultaneously compare those socioeconomic trajectories with a U.S.-born white, non-Latino reference group. We find that second-generation women experience greater status attainment than both their mothers and their male counterparts, but the earnings of second-generation women lag behind those of men. However, because white mainstream women experienced similar intergenerational mobility, many gaps between the second generation and the mainstream remain. These patterns remain even after we control for parenthood status. With feminized intergenerational mobility occurring similarly across race, the racial/ethnic gaps observed in 1980 narrow but persist into the next generation for many outcomes. Both gender and race shape mobility trajectories, so ignoring either leads to an incomplete picture of assimilation.

Differences by Veteran/civilian status and gender in associations between childhood adversity and alcohol and drug use disorders.

PubMed

Evans, Elizabeth A; Upchurch, Dawn M; Simpson, Tracy; Hamilton, Alison B; Hoggatt, Katherine J

2018-04-01

To examine differences by US military Veteran status and gender in associations between childhood adversity and DSM-5 lifetime alcohol and drug use disorders (AUD/DUD). We analyzed nationally representative data from 3119 Veterans (n = 379 women; n = 2740 men) and 33,182 civilians (n = 20,066 women; n = 13,116 men) as provided by the 2012-2013 National Epidemiologic Survey on Alcohol and Related Conditions (NESARC-III). We used weighted multinomial logistic regression, tested interaction terms, and calculated predicted probabilities by Veteran status and gender, controlling for covariates. To test which specific moderation contrasts were statistically significant, we conducted pairwise comparisons. Among civilians, women had lower AUD and DUD prevalence than men; however, with more childhood adversity, this gender gap narrowed for AUD and widened for DUD. Among Veterans, in contrast, similar proportions of women and men had AUD and DUD; with more childhood adversity, AUD-predicted probability among men surpassed that of women. Childhood adversity elevated AUD probability among civilian women to levels exhibited by Veteran women. Among men, Veterans with more childhood adversity were more likely than civilians to have AUD, and less likely to have DUD. Childhood adversity alters the gender gap in AUD and DUD risk, and in ways that are different for Veterans compared with civilians. Department of Defense, Veterans Affairs, and community health centers can prevent and ameliorate the harmful effects of childhood adversity by adapting existing behavioral health efforts to be trauma informed, Veteran sensitive, and gender tailored.

Narrowing the Gap in Outcomes: Early Years (0-5 Years)

ERIC Educational Resources Information Center

Springate, Ian; Atkinson, Mary; Straw, Suzanne; Lamont, Emily; Grayson, Hilary

2008-01-01

This report was commissioned by the Local Government Association (LGA) to inform the Department for Children, Schools and Families (DCSF) and LGA work on "Narrowing the Gap." It focuses on early years' provision and presents findings from a review of the best evidence on narrowing the gap in outcomes across the five Every Child Matters…

Sex and gender differences in substance use disorders.

PubMed

McHugh, R Kathryn; Votaw, Victoria R; Sugarman, Dawn E; Greenfield, Shelly F

2017-11-10

The gender gap in substance use disorders (SUDs), characterized by greater prevalence in men, is narrowing, highlighting the importance of understanding sex and gender differences in SUD etiology and maintenance. In this critical review, we provide an overview of sex/gender differences in the biology, epidemiology and treatment of SUDs. Biological sex differences are evident across an array of systems, including brain structure and function, endocrine function, and metabolic function. Gender (i.e., environmentally and socioculturally defined roles for men and women) also contributes to the initiation and course of substance use and SUDs. Adverse medical, psychiatric, and functional consequences associated with SUDs are often more severe in women. However, men and women do not substantively differ with respect to SUD treatment outcomes. Although several trends are beginning to emerge in the literature, findings on sex and gender differences in SUDs are complicated by the interacting contributions of biological and environmental factors. Future research is needed to further elucidate sex and gender differences, especially focusing on hormonal factors in SUD course and treatment outcomes; research translating findings between animal and human models; and gender differences in understudied populations, such as those with co-occurring psychiatric disorders and gender-specific populations, such as pregnant women. Copyright © 2017 Elsevier Ltd. All rights reserved.

Gender differences in health information behaviour: a Finnish population-based survey.

PubMed

Ek, Stefan

2015-09-01

Narrowing the gaps in health outcomes, including those between men and women, has been a pronounced goal on the agenda of the Finnish health authorities since the mid-1980s. But still there is a huge gap in favour of women when it comes to life expectancy at birth. People's health information behaviour, that is how people seek, obtain, evaluate, categorize and use relevant health-related information to perform desired health behaviours, is a critical prerequisite to appropriate and consistent performances of these behaviours. With respect to gender, it has been noted that men often are unwilling and lack the motivation to engage with health-related information. The purpose of this study was to investigate how gender affects health information behaviour in the Finnish population aged 18-65 years. The survey data were collected via a questionnaire which was posted to a representative cross section consisting of 1500 Finnish citizens. The statistical analysis consists of ANOVA F-tests and Fisher's exact tests. The results show that women were more interested in and reported much more active seeking of health-related information, paid more attention to potential worldwide pandemics and were much more attentive as to how the goods they purchase in everyday life affect their health than men did. Women also reported receiving far more informal health-related information from close family members, other kin and friends/workmates than men did. Thus, to succeed in public health promotion and interventions the measures taken should be much more sensitive to the gender gap in health information behaviour. © The Author (2013). Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

Narrowing the Gap in Outcomes for Vulnerable Groups: A Review of the Research Evidence

ERIC Educational Resources Information Center

Kendall, Sally; Straw, Suzanne; Jones, Megan; Springate, Iain; Grayson, Hilary

2008-01-01

This report presents findings from a review of the best evidence on narrowing the gap in outcomes across the five Every Child Matters (ECM) areas for vulnerable groups in the context of improving outcomes for all. The review was commissioned to prepare the ground for work on "Narrowing the Gap" with participating local authorities (LAs).…

Exploring the gender gap in healthcare management.

PubMed

Weil, P; Haddock, C C; Barowsky, D

1996-01-01

A 1990 study by ACHE and the University of Iowa compared the career attainments and attitudes of a group of male and female healthcare executives. The research showed that among men and women who had entered the field at the same time and had achieved similar educational levels, women did not fare as well as men in terms of salary, position level, or job satisfaction. A follow-up to this study, which consisted of two parts, was conducted in 1995 by ACHE, the University of Alabama at Birmingham, and Lamalie Amrop International to learn whether the gender gap had narrowed. The 1990 study divided respondents into groups according to the year they entered healthcare management: 1971-1975, 1976-1980, or 1981-1985. The first part of the 1995 project was a replication study that paralleled the 1990 study, dividing a new pool of respondents into three groups: 1976-1980, 1981-1985, and 1986-1990. The second part of the follow-up project was a panel study, in which respondents from the 1990 study were surveyed again. Following are highlights from the 1995 study.

Exploring gender-specific trends in underage drinking across adolescent age groups and measures of drinking: is girls' drinking catching up with boys'?

PubMed

Zhong, Hua; Schwartz, Jennifer

2010-08-01

Underage drinking is among the most serious of public health problems facing adolescents in the United States. Recent concerns have centered on young women, reflected in media reports and arrest statistics on their increasing problematic alcohol use. This study rigorously examined whether girls' alcohol use rose by applying time series methods to both arrest data, Uniform Crime Reports, and self-report data from Monitoring the Future, a nationally representative long-term survey gathered independently of crime control agents. All self-reported drinking behaviors across all age groups show declining or unchanged female rates and no significant change in the gender gap, while the official source displays a steady narrowing gender gap and some increase of female arrest rates for liquor law violations. Results indicate that social control measures applied to underage drinking have shifted to target young women's drinking patterns, but their drinking has not become more widespread/problematic. Girls' increased alcohol use and abuse is a socially constructed problem, rather than the result of normalization of drinking or more strain in girls' lives. Future underage drinking policies and practices that apply legal intervention strategies to less chronic adolescent drinking behaviors will increase the visibility of girls' drinking.

Trends in the earnings gender gap among dentists, physicians, and lawyers.

PubMed

Nguyen Le, Thanh An; Lo Sasso, Anthony T; Vujicic, Marko

2017-04-01

The authors examined the factors associated with sex differences in earnings for 3 professional occupations. The authors used a multivariate Blinder-Oaxaca method to decompose the differences in mean earnings across sex. Although mean differences in earnings between men and women narrowed over time, there remained large, unaccountable earnings differences between men and women among all professions after multivariate adjustments. For dentists, the unexplained difference in earnings for women was approximately constant at 62% to 66%. For physicians, the unexplained difference in earnings for women ranged from 52% to 57%. For lawyers, the unexplained difference in earnings for women was the smallest of the 3 professions but also exhibited the most growth, increasing from 34% in 1990 to 45% in 2010. The reduction in the earnings gap is driven largely by a general convergence between men and women in some, but not all, observable characteristics over time. Nevertheless, large unexplained gender gaps in earnings remain for all 3 professions. Policy makers must use care in efforts to alleviate earnings differences for men and women because measures could make matters worse without a clear understanding of the nature of the factors driving the differences. Copyright © 2017 American Dental Association. Published by Elsevier Inc. All rights reserved.

Narrowing the Gap in Outcomes for Vulnerable Groups. A Review of the Research Evidence: Summary of Key Findings

ERIC Educational Resources Information Center

Kendall, Sally; Straw, Suzanne; Jones, Megan; Springate, Iain; Lord, Pippa; Stoney, Sheila

2007-01-01

In 2007, the Local Government Association (LGA) commissioned the NFER to review the best evidence on what works in narrowing the gap in outcomes for vulnerable groups across the five Every Child Matters areas. The review aimed to underpin the Narrowing the Gap Programme, a major development programme being implemented by the LGA and the DCSF. …

Gender, culture, and mathematics performance

PubMed Central

Hyde, Janet S.; Mertz, Janet E.

2009-01-01

Using contemporary data from the U.S. and other nations, we address 3 questions: Do gender differences in mathematics performance exist in the general population? Do gender differences exist among the mathematically talented? Do females exist who possess profound mathematical talent? In regard to the first question, contemporary data indicate that girls in the U.S. have reached parity with boys in mathematics performance, a pattern that is found in some other nations as well. Focusing on the second question, studies find more males than females scoring above the 95th or 99th percentile, but this gender gap has significantly narrowed over time in the U.S. and is not found among some ethnic groups and in some nations. Furthermore, data from several studies indicate that greater male variability with respect to mathematics is not ubiquitous. Rather, its presence correlates with several measures of gender inequality. Thus, it is largely an artifact of changeable sociocultural factors, not immutable, innate biological differences between the sexes. Responding to the third question, we document the existence of females who possess profound mathematical talent. Finally, we review mounting evidence that both the magnitude of mean math gender differences and the frequency of identification of gifted and profoundly gifted females significantly correlate with sociocultural factors, including measures of gender equality across nations. PMID:19487665

Gender, culture, and mathematics performance.

PubMed

Hyde, Janet S; Mertz, Janet E

2009-06-02

Using contemporary data from the U.S. and other nations, we address 3 questions: Do gender differences in mathematics performance exist in the general population? Do gender differences exist among the mathematically talented? Do females exist who possess profound mathematical talent? In regard to the first question, contemporary data indicate that girls in the U.S. have reached parity with boys in mathematics performance, a pattern that is found in some other nations as well. Focusing on the second question, studies find more males than females scoring above the 95th or 99th percentile, but this gender gap has significantly narrowed over time in the U.S. and is not found among some ethnic groups and in some nations. Furthermore, data from several studies indicate that greater male variability with respect to mathematics is not ubiquitous. Rather, its presence correlates with several measures of gender inequality. Thus, it is largely an artifact of changeable sociocultural factors, not immutable, innate biological differences between the sexes. Responding to the third question, we document the existence of females who possess profound mathematical talent. Finally, we review mounting evidence that both the magnitude of mean math gender differences and the frequency of identification of gifted and profoundly gifted females significantly correlate with sociocultural factors, including measures of gender equality across nations.

Adolescent girls' experiences and gender-related beliefs in relation to their motivation in math/science and english.

PubMed

Leaper, Campbell; Farkas, Timea; Brown, Christia Spears

2012-03-01

Although the gender gap has dramatically narrowed in recent decades, women remain underrepresented in many science, technology, engineering, and mathematics (STEM) fields. This study examined social and personal factors in relation to adolescent girls' motivation in STEM (math/science) versus non-STEM (English) subjects. An ethnically diverse sample of 579 girls ages 13-18 years (M = 15) in the U.S. completed questionnaires measuring their academic achievement, ability beliefs, values, and experiences. Social and personal factors were hypothesized to predict motivation (expectancy-value) differently in math/science (M/S) and English. Social factors included perceived M/S and English support from parents and peers. Personal factors included facets of gender identity (felt conformity pressure, gender typicality, gender-role contentedness), gender-related attitudes, and exposure to feminism. In addition, grades, age, parents' education, and ethnicity were controlled. Girls' M/S motivation was positively associated with mother M/S support, peer M/S support, gender-egalitarian beliefs, and exposure to feminism; it was negatively related to peer English support. Girls' English motivation was positively associated with peer English support as well as felt pressure from parents; it was negatively related to peer M/S support and felt peer pressure. The findings suggest that social and personal factors may influence girls' motivation in domain-specific ways.

Influence of the Strength Mismatch of a Narrow Gap Welded Joint of SA508 on the Plastic η Factor

NASA Astrophysics Data System (ADS)

Koo, J. M.; Huh, Y.; Seok, C. S.

2012-11-01

In this article, the influence of the strength mismatch of a narrow gap welded joint of SA508 on the η factor was evaluated. The η factor is the principal parameter that determines the plastic portion of the J-integral. The specimens for tensile and hardness tests were collected from piping with narrow gap welding and the stress-strain curve and hardness were obtained from those. From these results, the Ramberg-Osgood (R-O) constant was obtained. Also, the finite element analysis was performed with variations in the strength mismatch and the weld width. The η factor equation considering the strength mismatch and the weld width of a narrow gap welded joint was suggested.

Why "Gender" Disappeared from the Gender Gap: (Re-)Introducing Gender Identity Theory to Educational Gender Gap Research

ERIC Educational Resources Information Center

Vantieghem, Wendelien; Vermeersch, Hans; Van Houtte, Mieke

2014-01-01

Educational gender gap research tries to explain the differential achievement of boys and girls at secondary school, which manifests in many western countries. Several explanatory frameworks are used for this purpose, such as masculinities theory. In this review article, the history of educational gender gap research in Anglo-Saxon literature and…

Effects of gap width on droplet transfer behavior in ultra-narrow gap laser welding of high strength aluminum alloys

NASA Astrophysics Data System (ADS)

Song, Chaoqun; Dong, Shiyun; Yan, Shixing; He, Jiawu; Xu, Binshi; He, Peng

2017-10-01

Ultra-narrow gap laser welding is a novel method for thick high strength aluminum alloy plate for its lower heat input, less deformation and higher efficiency. To obtain a perfect welding quality, it is vital to control the more complex droplet transfer behavior under the influence of ultra-narrow gap groove. This paper reports the effects of gap width of groove on droplet transfer behavior in ultra-narrow gap laser welding of 7A52 aluminum alloy plates by a high speed camera, using an ER 5356 filler wire. The results showed that the gap width had directly effects on droplet transfer mode and droplet shape. The droplet transfer modes were, in order, both-sidewall transfer, single-sidewall transfer, globular droplet transfer and bridging transfer, with different droplet shape and transition period, as the gap width increased from 2 mm to 3.5mm. The effect of gap width on lack of fusion was also studied to analyze the cause for lack of fusion at the bottom and on the sidewall of groove. Finally, with a 2.5 mm U-type parallel groove, a single-pass joint with no lack of fusion and other macro welding defects was successfully obtained in a single-sidewall transfer mode.

Student Interns' Socially Constructed Work Realities: Narrowing the Work Expectation-Reality Gap

ERIC Educational Resources Information Center

Barnett, Kathy

2012-01-01

New employees, including college students, often experience expectation-reality gaps about work, making the assimilation process more difficult for all. This qualitative study explores the role of the internship in narrowing the work expectation-reality gap. This article addresses two research questions: (a) What do students learn about work…

Perceptions and experiences of a gender gap at a Canadian research institute and potential strategies to mitigate this gap: a sequential mixed-methods study.

PubMed

Mascarenhas, Alekhya; Moore, Julia E; Tricco, Andrea C; Hamid, Jemila; Daly, Caitlin; Bain, Julie; Jassemi, Sabrina; Kiran, Tara; Baxter, Nancy; Straus, Sharon E

2017-01-01

The gender gap in academia is long-standing. Failure to ensure that our academic faculty reflect our student pool and national population deprives Canada of talent. We explored the gender distribution and perceptions of the gender gap at a Canadian university-affiliated, hospital-based research institute. We completed a sequential mixed-methods study. In phase 1, we used the research institute's registry of scientists (1999-2014) and estimated overall prevalence of a gender gap and the gap with respect to job description (e.g., associate v. full-time) and research discipline. In phase 2, we conducted qualitative interviews to provide context for phase 1 data. Both purposive and snowball sampling were used for recruitment. The institute included 30.1% ( n = 62) women and 69.9% ( n = 144) men, indicating a 39.8% gender gap. Most full-time scientists (60.3%, n = 70) were clinicians; there were 54.2% more male than female clinician scientists. Ninety-five percent of basic scientists were men, indicating a 90.5% gap. Seven key themes emerged from 21 interviews, including perceived impact of the gender gap, factors perceived to influence the gap, recruitment trends, presence of institutional support, mentorship and suggestions to mitigate the gap. Several factors were postulated to contribute to the gender gap, including unconscious bias in hiring. A substantial gender gap exists within this research institute. Participants identified strategies to address this gap, such as establishing transparent search processes, providing opportunities for informal networking and mentorship of female scientists and establishing institutional support for work-life balance.

Perceived Gender Differences in Interest and Competence in High School Chemistry

NASA Astrophysics Data System (ADS)

Rancier, Kelly

Male and female representation in the field of chemistry continues to be unequal. In order to better understand why this imbalance exists, male and female high school chemistry students participated in a survey to assess their own self-perceived competence, confidence, enjoyment, and interest in chemistry. The survey results yielded from this study suggest that the sexes actually assess themselves quite similarly when asked to respond to questions about different aspects of science and chemistry, however the lab component of chemistry class did offer differing results. Female students tend to be less interested in the lab aspect of this field, and may therefore be less interested in pursuing a career in science or chemistry later on in life. Educators may need to look to new strategies in order to keep our females interested in chemistry so that the gender gap can begin to narrow.

Microstructure and Mechanical Properties of Narrow Gap Laser-Arc Hybrid Welded 40 mm Thick Mild Steel.

PubMed

Zhang, Chen; Li, Geng; Gao, Ming; Zeng, XiaoYan

2017-01-26

Both laser-arc hybrid welding and narrow gap welding have potential for the fabrication of thick sections, but their combination has been seldom studied. In this research, 40 mm thick mild steel was welded by narrow gap laser-arc hybrid welding. A weld with smooth layer transition, free of visible defects, was obtained by nine passes at a 6 mm width narrow gap. The lower part of the weld has the lowest mechanical properties because of the lowest amount of acicular ferrite, but its ultimate tensile strength and impact absorbing energy is still 49% and 60% higher than those of base metal, respectively. The microhardness deviation of all filler layers along weld thickness direction is no more than 15 HV 0.2 , indicating that no temper softening appeared during multiple heat cycles. The results provide an alternative technique for improving the efficiency and quality of welding thick sections.

Microstructure and Mechanical Properties of Narrow Gap Laser-Arc Hybrid Welded 40 mm Thick Mild Steel

PubMed Central

Zhang, Chen; Li, Geng; Gao, Ming; Zeng, XiaoYan

2017-01-01

Both laser-arc hybrid welding and narrow gap welding have potential for the fabrication of thick sections, but their combination has been seldom studied. In this research, 40 mm thick mild steel was welded by narrow gap laser-arc hybrid welding. A weld with smooth layer transition, free of visible defects, was obtained by nine passes at a 6 mm width narrow gap. The lower part of the weld has the lowest mechanical properties because of the lowest amount of acicular ferrite, but its ultimate tensile strength and impact absorbing energy is still 49% and 60% higher than those of base metal, respectively. The microhardness deviation of all filler layers along weld thickness direction is no more than 15 HV0.2, indicating that no temper softening appeared during multiple heat cycles. The results provide an alternative technique for improving the efficiency and quality of welding thick sections. PMID:28772469

Sibling rivalry and the gender gap: evidence from child health outcomes in Ghana.

PubMed

Garg, A; Morduch, J

1998-01-01

"When capital and labor markets are imperfect, choice sets narrow, and parents must choose how to ration available funds and time between their children. One consequence is that children become rivals for household resources. In economies with pro-male bias, such rivalries can yield gains to having relatively more sisters than brothers. Using a rich household survey from Ghana [the 1988-1989 Ghana Living Standards Survey], we find that on average if children had all sisters (and no brothers) they would do roughly 25-40% better on measured health indicators than if they had all brothers (and no sisters)." excerpt

GENDER EQUALITY AND THE GENDER GAP IN MATHEMATICS.

PubMed

Tao, Hung-Lin; Michalopoulos, Christos

2018-03-01

A gender gap has been found in mathematics (boys outperform girls) that has prevailed across countries for many decades. Whether this gap results from nature or nurture has been hotly debated. Using the evidence of PISA 2003 and the gender equality index of 2003, some researchers have argued that an improvement in gender equality reduces the gender gap in mathematics. This study used five waves of country-level PISA data and, controlling for country fixed effects, found no evidence to support this argument. Furthermore, individual data for PISA 2012 and the multilevel data model were used. The conclusion drawn also does not support the argument. In fact, the relationship between gender equality and the gender gap in mathematics vanished after PISA 2003.

Perceptions and experiences of a gender gap at a Canadian research institute and potential strategies to mitigate this gap: a sequential mixed-methods study

PubMed Central

Mascarenhas, Alekhya; Moore, Julia E.; Tricco, Andrea C.; Hamid, Jemila; Daly, Caitlin; Bain, Julie; Jassemi, Sabrina; Kiran, Tara; Baxter, Nancy; Straus, Sharon E.

2017-01-01

Background: The gender gap in academia is long-standing. Failure to ensure that our academic faculty reflect our student pool and national population deprives Canada of talent. We explored the gender distribution and perceptions of the gender gap at a Canadian university-affiliated, hospital-based research institute. Methods: We completed a sequential mixed-methods study. In phase 1, we used the research institute's registry of scientists (1999-2014) and estimated overall prevalence of a gender gap and the gap with respect to job description (e.g., associate v. full-time) and research discipline. In phase 2, we conducted qualitative interviews to provide context for phase 1 data. Both purposive and snowball sampling were used for recruitment. Results: The institute included 30.1% (n = 62) women and 69.9% (n = 144) men, indicating a 39.8% gender gap. Most full-time scientists (60.3%, n = 70) were clinicians; there were 54.2% more male than female clinician scientists. Ninety-five percent of basic scientists were men, indicating a 90.5% gap. Seven key themes emerged from 21 interviews, including perceived impact of the gender gap, factors perceived to influence the gap, recruitment trends, presence of institutional support, mentorship and suggestions to mitigate the gap. Several factors were postulated to contribute to the gender gap, including unconscious bias in hiring. Interpretation: A substantial gender gap exists within this research institute. Participants identified strategies to address this gap, such as establishing transparent search processes, providing opportunities for informal networking and mentorship of female scientists and establishing institutional support for work-life balance. PMID:28401131

Further improvements in program to calculate electronic properties of narrow band gap materials

NASA Technical Reports Server (NTRS)

Patterson, James D.

1991-01-01

Research into the properties of narrow band gap materials during the period 15 Jun. to 15 Dec. 1991 is discussed. Abstracts and bibliographies from papers presented during this period are reported. Graphs are provided.

The John Insall Award: Both morphotype and gender influence the shape of the knee in patients undergoing TKA.

PubMed

Bellemans, Johan; Carpentier, Karel; Vandenneucker, Hilde; Vanlauwe, Johan; Victor, Jan

2010-01-01

There is an ongoing debate whether gender differences in the dimensions of the knee should influence the design of TKA components. We hypothesized that not only gender but also the patient's morphotype determined the shape of the distal femur and proximal tibia and that this factor should be taken into account when designing gender-specific TKA implants. We reviewed all 1000 European white patients undergoing TKA between April 2003 and June 2007 and stratified each into one of three groups based on their anatomic constitution: endomorph, ectomorph, or mesomorph. Of the 250 smallest knees, 98% were female, whereas 81% of the 250 largest knees were male. In the group with intermediate-sized knees, female knees were narrower than male knees. Patients with smaller knees (predominantly female) demonstrated large variability between narrow and wide mediolateral dimensions irrespective of gender. The same was true for larger knees (predominantly male). This variability within gender could partially be explained by morphotypic variation. Patients with short and wide morphotype (endomorph) had, irrespective of gender, wider knees, whereas patients with long and narrow morphotype (ectomorph) had narrower knees. The shape of the knee is therefore not only dependent on gender, but also on the morphotype of the patient. Level I, diagnostic study. See Guidelines for Authors for a complete description of levels of evidence.

Accounting for clinical action reduces estimates of gender disparities in lipid management for diabetic veterans.

PubMed

Vimalananda, Varsha G; Miller, Donald R; Hofer, Timothy P; Holleman, Robert G; Klamerus, Mandi L; Kerr, Eve A

2013-07-01

Women with diabetes have higher low-density lipoprotein (LDL) levels than men, resulting in apparent disparities between genders on quality indicators tied to LDL thresholds. To investigate whether gender disparities persist when accounting for clinical action with statins or cardiovascular risk. Retrospective cohort study. Veterans Health Administration patients (21,780 women and 646,429 men) aged 50-75 with diabetes. Threshold measure: LDL < 100 mg/dL; clinical action measure: LDL < 100 mg/dL; or LDL ≥ 100 mg/dL and the patient was prescribed a moderate or high-dose statin at the time of the test; or LDL ≥ 100 mg/dL and the patient received other appropriate clinical action within 90 days; adherence: continuous multiple interval measure of gaps in dispensed medication (CMG). Women were much less likely to have LDL < 100 mg/dL than were men (55 % vs. 68 %). This disparity narrowed from 13 % to 6 % for passing the clinical action measure (79 % vs. 85 %). These gender differences persisted among those with ischemic heart disease (IHD). Women had a lower odds of passing the clinical action measure (odds ratio 0.68, 95 % confidence interval 0.66-0.71). Among those with IHD, the gender gap increased with age. Differences in pass rates were explained by women's higher LDL levels, but not by their slightly worse adherence (3 % higher CMG). Women and men veterans receive more similar quality of care for lipids in diabetes than previously indicated. Less reassuringly, the remaining gender differences appear to be as common in women at high cardiovascular risk as in those at low risk. Rather than focus on simply improving LDL levels in all women with diabetes, future efforts should ensure that patients with high cardiovascular risk are appropriately treated with statins when clinically indicated, feasible, and concordant with patient preferences.

Gendered Pathways? Gender, Mediating Factors, and the Gap in Boys' and Girls' Substance Use

ERIC Educational Resources Information Center

Whaley, Rachel Bridges; Hayes-Smith, Justin; Hayes-Smith, Rebecca

2013-01-01

A gender gap in alcohol and drug use exists but is somewhat smaller than the gender gap in other forms of delinquency. This article extends studies that examine the gender-delinquency relationship to substance use in particular and estimate the extent to which major risk and protective factors mediate the association between gender and alcohol and…

Gender differences in the effects of childhood adversity on alcohol, drug, and polysubstance-related disorders.

PubMed

Evans, Elizabeth A; Grella, Christine E; Upchurch, Dawn M

2017-07-01

To examine gender differences in the associations between childhood adversity and different types of substance use disorders and whether gender moderates these relationships. We analyzed data from 19,209 women and 13,898 men as provided by Wave 2 (2004-2005) of the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC) to examine whether gender moderates the associations between childhood adversity and DSM-IV defined lifetime occurrence of alcohol, drug, and polysubstance-related disorders. We used multinomial logistic regression, weighted to be representative of the US adult civilian, noninstitutionalized population, and we calculated predicted probabilities by gender, controlling for covariates. To test which specific moderation contrasts were statistically significant, we conducted pair-wise comparisons corrected for multiple comparisons using Bonferroni's method. For each type of substance use disorder, risk was increased by more exposure to childhood adversity, and women had a lower risk than men. However, moderation effects revealed that with more experiences of childhood adversity, the gender gap in predicted probability for a disorder narrowed in relation to alcohol, it converged in relation to drugs such that risk among women surpassed that among men, and it widened in relation to polysubstances. Knowledge regarding substance-specific gender differences associated with childhood adversity exposure can inform evidence-based treatments. It may also be useful for shaping other types of gender-sensitive public health initiatives to ameliorate or prevent different types of substance use disorders.

Gender differences in outcomes in patients with acute coronary syndrome in the current era: A review.

PubMed

Tan, Ying C; Sinclair, Hannah; Ghoorah, Kuldeepa; Teoh, Xuyan; Mehran, Roxana; Kunadian, Vijay

2016-11-01

Coronary heart disease is the most common cause of death worldwide. In the United Kingdom in 2010, over 80,000 deaths were attributed to coronary heart disease, and one in 10 female deaths were due to coronary heart disease. Acute coronary syndrome, a subset of coronary heart disease, was responsible for 175,000 inpatient admissions in the United Kingdom in 2012. While men have traditionally been considered to be at higher risk of acute coronary syndrome, various studies have demonstrated that women often suffer from poorer outcomes following an adverse cardiovascular event. This gap is gradually narrowing with the introduction of advanced interventional strategies and pharmacotherapy. However, a better understanding of these differences is of crucial importance for the improvement of the pharmacological and interventional management of acute coronary syndrome and for the development of possible new gender-specific diagnostic and therapeutic options. The goals of this review are to evaluate gender differences in outcomes in patients with acute coronary syndrome in the current era and identify potential mechanisms behind these differences in outcomes following percutaneous coronary intervention.

Closing the Gender Gap: Act Now

ERIC Educational Resources Information Center

OECD Publishing (NJ3), 2012

2012-01-01

Gender gaps are pervasive in all walks of economic life and imply large losses in terms of foregone productivity and living standards to the individuals concerned and the economy. This new OECD report focuses on how best to close these gender gaps under four broad headings: (1) Gender equality, social norms and public policies; and gender equality…

Gender pay gap and employment sector: sources of earnings disparities in the United States, 1970-2010.

PubMed

Mandel, Hadas; Semyonov, Moshe

2014-10-01

Using data from the IPUMS-USA, the present research focuses on trends in the gender earnings gap in the United States between 1970 and 2010. The major goal of this article is to understand the sources of the convergence in men's and women's earnings in the public and private sectors as well as the stagnation of this trend in the new millennium. For this purpose, we delineate temporal changes in the role played by major sources of the gap. Several components are identified: the portion of the gap attributed to gender differences in human-capital resources; labor supply; sociodemographic attributes; occupational segregation; and the unexplained portion of the gap. The findings reveal a substantial reduction in the gross gender earnings gap in both sectors of the economy. Most of the decline is attributed to the reduction in the unexplained portion of the gap, implying a significant decline in economic discrimination against women. In contrast to discrimination, the role played by human capital and personal attributes in explaining the gender pay gap is relatively small in both sectors. Differences between the two sectors are not only in the size and pace of the reduction but also in the significance of the two major sources of the gap. Working hours have become the most important factor with respect to gender pay inequality in both sectors, although much more dominantly in the private sector. The declining gender segregation may explain the decreased impact of occupations on the gender pay gap in the private sector. In the public sector, by contrast, gender segregation still accounts for a substantial portion of the gap. The findings are discussed in light of the theoretical literature on sources of gender economic inequality and in light of the recent stagnation of the trend.

Cross-national differences in the gender gap in subjective health in Europe: does country-level gender equality matter?

PubMed

Dahlin, Johanna; Härkönen, Juho

2013-12-01

Multiple studies have found that women report being in worse health despite living longer. Gender gaps vary cross-nationally, but relatively little is known about the causes of comparative differences. Existing literature is inconclusive as to whether gender gaps in health are smaller in more gender equal societies. We analyze gender gaps in self-rated health (SRH) and limiting longstanding illness (LLI) with five waves of European Social Survey data for 191,104 respondents from 28 countries. We use means, odds ratios, logistic regressions, and multilevel random slopes logistic regressions. Gender gaps in subjective health vary visibly across Europe. In many countries (especially in Eastern and Southern Europe), women report distinctly worse health, while in others (such as Estonia, Finland, and Great Britain) there are small or no differences. Logistic regressions ran separately for each country revealed that individual-level socioeconomic and demographic variables explain a majority of these gaps in some countries, but contribute little to their understanding in most countries. In yet other countries, men had worse health when these variables were controlled for. Cross-national variation in the gender gaps exists after accounting for individual-level factors. Against expectations, the remaining gaps are not systematically related to societal-level gender inequality in the multilevel analyses. Our findings stress persistent cross-national variability in gender gaps in health and call for further analysis. Copyright © 2013 Elsevier Ltd. All rights reserved.

Narrowing the Gap in Outcomes for Vulnerable Groups: Overview and Analysis of Available Datasets on Vulnerable Groups and the Five ECM Outcomes. Executive Summary

ERIC Educational Resources Information Center

Morris, Marian

2007-01-01

This summary presents the main findings from a data mapping and analysis study commissioned by the Local Government Association (LGA) from the National Foundation for Educational Research (NFER) as part of a two-year development and research programme, Narrowing the Gap. This programme seeks to make a significant difference in "narrowing the…

Closing the Gender Gap: Improved Performance of U.S.-Born Females on the National Assessment of Adult Literacy

ERIC Educational Resources Information Center

Cohen, Dale J.; White, Sheida; Cohen, Steffaney B.

2012-01-01

This study analyzed the current state of the gender literacy gap and the change in the gender literacy gap between 1992 and 2003, using the 1992 National Adult Literacy Survey (NALS) and the 2003 National Assessment of Adult Literacy (NAAL). The results revealed that although there were significant gender literacy gaps in 1992, virtually all…

For blacks in America, the gap in neighborhood poverty has declined faster than segregation

PubMed Central

Acciai, Francesco

2016-01-01

Black residential segregation has been declining in the United States. That accomplishment rings hollow, however, if blacks continue to live in much poorer neighborhoods than other Americans. This study uses census data for all US metropolitan areas in 1980 and 2010 to compare decline in the neighborhood poverty gap between blacks and other Americans with decline in the residential segregation of blacks. We find that both declines resulted primarily from narrowing differences between blacks and whites as opposed to narrowing differences between blacks and Hispanics or blacks and Asians. Because black–white differences in neighborhood poverty declined much faster than black–white segregation, the neighborhood poverty disadvantage of blacks declined faster than black segregation—a noteworthy finding because the narrowing of the racial gap in neighborhood poverty for blacks has gone largely unnoticed. Further analysis reveals that the narrowing of the gap was produced by change in both the medians and shapes of the distribution of poverty across the neighborhoods where blacks, whites, Hispanics, and Asians reside. PMID:27821759

For blacks in America, the gap in neighborhood poverty has declined faster than segregation.

PubMed

Firebaugh, Glenn; Acciai, Francesco

2016-11-22

Black residential segregation has been declining in the United States. That accomplishment rings hollow, however, if blacks continue to live in much poorer neighborhoods than other Americans. This study uses census data for all US metropolitan areas in 1980 and 2010 to compare decline in the neighborhood poverty gap between blacks and other Americans with decline in the residential segregation of blacks. We find that both declines resulted primarily from narrowing differences between blacks and whites as opposed to narrowing differences between blacks and Hispanics or blacks and Asians. Because black-white differences in neighborhood poverty declined much faster than black-white segregation, the neighborhood poverty disadvantage of blacks declined faster than black segregation-a noteworthy finding because the narrowing of the racial gap in neighborhood poverty for blacks has gone largely unnoticed. Further analysis reveals that the narrowing of the gap was produced by change in both the medians and shapes of the distribution of poverty across the neighborhoods where blacks, whites, Hispanics, and Asians reside.

Enduring an Economic Crisis: The Effect of Macroeconomic Shocks on Intragenerational Mobility in Japan

PubMed Central

Yu, Wei-hsin

2010-01-01

After the burst of its “bubble” economy in 1989, Japan experienced an astonishingly long economic recession whose gravity surpassed any seen in the industrialized world since the 1930s. While this recession is likely to have important consequences on the well-known workplace arrangements and career mobility patterns in that country, systematic analyses of such consequences are nearly absent. This study examines changes in the rates and directions of job mobility in Japan using work history data collected in 2005 from a nationally representative sample of men and women. I find evidence that Japanese firms have largely retained the core elements of the permanent employment system. The norm that stresses men’s loyalty to their employers, however, appears to have weakened, resulting in higher voluntary job turnover among male workers. In addition, the gender gap in lifetime mobility processes has narrowed, but not because Japanese women have gained opportunities in the workplace. Rather, economic stagnation has led to greater fluctuations in employment and wages over men’s life course, thereby closing the gender gap. Beyond illustrating the changing stratification process in Japan, the findings have general implications for understanding how economic crises impact employment relations, institutional transformations, and social change in advanced industrialized countries. PMID:21278839

Enduring an Economic Crisis: The Effect of Macroeconomic Shocks on Intragenerational Mobility in Japan.

PubMed

Yu, Wei-Hsin

2010-11-01

After the burst of its "bubble" economy in 1989, Japan experienced an astonishingly long economic recession whose gravity surpassed any seen in the industrialized world since the 1930s. While this recession is likely to have important consequences on the well-known workplace arrangements and career mobility patterns in that country, systematic analyses of such consequences are nearly absent. This study examines changes in the rates and directions of job mobility in Japan using work history data collected in 2005 from a nationally representative sample of men and women. I find evidence that Japanese firms have largely retained the core elements of the permanent employment system. The norm that stresses men's loyalty to their employers, however, appears to have weakened, resulting in higher voluntary job turnover among male workers. In addition, the gender gap in lifetime mobility processes has narrowed, but not because Japanese women have gained opportunities in the workplace. Rather, economic stagnation has led to greater fluctuations in employment and wages over men's life course, thereby closing the gender gap. Beyond illustrating the changing stratification process in Japan, the findings have general implications for understanding how economic crises impact employment relations, institutional transformations, and social change in advanced industrialized countries.

Depression in later life: A closer look at the gender gap.

PubMed

Acciai, Francesco; Hardy, Melissa

2017-11-01

Gender differences in depressive symptoms have been extensively documented, with women reporting a higher number of depressive symptoms than men. However, studies offer different explanations for why such a gap exists. The goal of the current paper is to analyze how much of the observed gender gap in depression may be attributed to (1) compositional versus (2) reporting differences or (3) differences in reactivity to adversities. We contribute to this literature by testing, net of compositional differences, whether the relationship between reporting behavior and depressive symptoms is gendered and whether accounting for the possibility of gender-specific reactivity alters the structure of the gender gap at older ages. Our results show that the observed gender gap in depression (1) only partially derives from compositional differences; (2) is not an artifact of a gender-specific reporting style; and remarkably (3) men appear more sensitive to adversities. Copyright © 2017 Elsevier Inc. All rights reserved.

High Prevalence of Narrow Angles among Chinese-American Glaucoma and Glaucoma Suspect Patients

PubMed Central

Seider, Michael I; Pekmezci, Melike; Han, Ying; Sandhu, Simi; Kwok, Shiu Y; Lee, Roland Y; Lin, Shan C

2009-01-01

Purpose To evaluate the prevalence of gonioscopically narrow angles in a Chinese-American population with glaucoma or glaucoma suspicion. Patients and Methods Charts from all Chinese-American patients seen in a comprehensive ophthalmology clinic in the Chinatown district of San Francisco in 2002 were reviewed. One eye from each patient with glaucoma or glaucoma suspicion that met inclusion criteria was included (n=108). Data was collected for gender, age, race (self-declared), refraction (spherical equivalent), intraocular pressure (IOP), gonioscopy and vertical cup-to-disk ratio (CDR). Results Sixty percent (n=65) of Chinese-American eyes with glaucoma or glaucoma suspicion had gonioscopically narrow angles (Shaffer grade ≤2 in three or more quadrants). Those with narrow angles were significantly older (P=0.004) than their open angle counterparts, but the two groups did not differ in terms of gender, refraction, IOP or CDR (all, P≥0.071). In a multivariate model including age, gender and refraction as predictors of angle grade (open or narrow), only age was a significant predictor of angle grade (P=0.004). Conclusions A large proportion of Chinese-Americans in our study population with glaucoma or glaucoma suspicion had gonioscopically narrow angles. In multivariate analysis, patients with narrow angles were older than those with open angles but did not differ from them in terms of gender or refraction. Continued evaluation of angle closure glaucoma risk among Chinese-Americans is needed. PMID:19826385

Educational Attainment and the Gender Wage Gap: Evidence from the 1986 and 1991 Canadian Censuses.

ERIC Educational Resources Information Center

Christie, Pamela; Shannon, Michael

2001-01-01

Uses Canadian census data to examine effects of gender differences in educational attainment on the gender earnings gap for full-time, full-year Canadian workers. These educational attainment differences account for virtually none of the gender earnings gap in 1985 and 1990. Gender differences in field of study matter somewhat more. (Contains 17…

NAFTA and the Mexican Economy

DTIC Science & Technology

2008-11-04

Paper, GDP Growth, Potential Output, and Output Gaps in Mexico, by Ebrima Faal, May 2005. 12 EIU, Country Reports: Mexico, various years. 13 EIU...positive overall effect on the Mexican economy, narrowing the U.S.-Mexico gap in prices of goods and services and the differential in real wages...improve economic conditions in Mexico and narrow the income gap between Mexico and the United States. Studies that have addressed the issue of

Disability and self-rated health among older women and men in rural Guatemala: The role of obesity and chronic conditions

PubMed Central

Hoddinott, John; Stein, Aryeh D.

2013-01-01

Unprecedented population aging in poorer settings is coinciding with the rapid spread of obesity and other chronic conditions. These conditions predict disability and poor self-rated health and often are more prevalent in women than men. Thus, gender gaps in obesity and other chronic conditions may account for older women's greater disability and worse self-rated health in poor, rural populations, where aging, obesity, and chronic conditions are rapidly emerging. In a survey of 604 adults 50 years and older in rural Guatemala, we assessed whether gender gaps in obesity and other chronic conditions accounted for gender gaps in disability and self-rated health. Obesity strongly predicted gross-mobility (GM) disability, and the number of chronic conditions strongly predicted all outcomes, especially in women. Controlling for gender gaps in body mass index (BMI) and especially the number of chronic conditions eliminated gender gaps in GM disability, and controlling for gender gaps in the number of chronic conditions eliminated gender gaps in self-rated health. We recommend conducting longitudinal cohort studies to explore interventions that may mitigate adult obesity and chronic conditions among poor, rural older adults. Such interventions also may reduce gender gaps in later-life disability and self-rated health. PMID:20813446

Gender gap on concept inventories in physics: What is consistent, what is inconsistent, and what factors influence the gap?

NASA Astrophysics Data System (ADS)

Madsen, Adrian; McKagan, Sarah B.; Sayre, Eleanor C.

2013-12-01

We review the literature on the gender gap on concept inventories in physics. Across studies of the most commonly used mechanics concept inventories, the Force Concept Inventory and Force and Motion Conceptual Evaluation, men’s average pretest scores are always higher than women’s, and in most cases men’s posttest scores are higher as well. The weighted average gender difference on these tests is 13% for pretest scores, 12% for posttest scores, and 6% for normalized gain. This difference is much smaller than the average difference in normalized gain between traditional lecture and interactive engagement (25%), but it is large enough that it could impact the results of studies comparing the effectiveness of different teaching methods. There is sometimes a gender gap on commonly used electricity and magnetism concept inventories, the Brief Electricity and Magnetism Assessment and Conceptual Survey of Electricity and Magnetism, but it is usually much smaller and sometimes is zero or favors women. The weighted average gender difference on these tests is 3.7% for pretest scores, 8.5% for posttest scores, and 6% for normalized gain. There are far fewer studies of the gender gap on electricity and magnetism concept inventories and much more variation in the existing studies. Based on our analysis of 26 published articles comparing the impact of 30 factors that could potentially influence the gender gap, no single factor is sufficient to explain the gap. Several high-profile studies that have claimed to account for or reduce the gender gap have failed to be replicated in subsequent studies, suggesting that isolated claims of explanations of the gender gap should be interpreted with caution. For example, claims that the gender gap could be eliminated through interactive engagement teaching methods or through a “values affirmation writing exercise” were not supported by subsequent studies. Suggestions that the gender gap might be reduced by changing the wording of “male-oriented” questions or refraining from asking demographic questions before administering the test are not supported by the evidence. Other factors, such as gender differences in background preparation, scores on different kinds of assessment, and splits between how students respond to test questions when answering for themselves or for a “scientist” do contribute to a difference between male and female responses, but the size of these differences is smaller than the size of the overall gender gap, suggesting that the gender gap is most likely due to the combination of many small factors rather than any one factor that can easily be modified.

The gender gap in mobility: a global cross-sectional study.

PubMed

Mechakra-Tahiri, Samia Djemâa; Freeman, Ellen E; Haddad, Slim; Samson, Elodie; Zunzunegui, Maria Victoria

2012-08-02

Several studies have demonstrated that women have greater mobility disability than men. The goals of this research were: 1) to assess the gender gap in mobility difficulty in 70 countries; 2) to determine whether the gender gap is explained by sociodemographic and health factors; 3) to determine whether the gender gap differs across 6 regions of the world with different degrees of gender equality according to United Nations data. Population-based data were used from the World Health Survey (WHS) conducted in 70 countries throughout the world. 276,647 adults aged 18 years and over were recruited from 6 world regions. Mobility was measured by asking the level of difficulty people had moving around in the last 30 days and then creating a dichotomous measure (no difficulty, difficulty). The human development index and the gender-related development index for each country were obtained from the United Nations Development Program website. Poisson regression with Taylor series linearized variance estimation was used. Women were more likely than men to report mobility difficulty (38% versus 27%, P < 0.0001). The age-adjusted prevalence rate ratio for female gender was 1.35 (95% CI 1.31-1.38). The addition of education, marital status, and urban versus rural setting reduced the prevalence rate ratio to 1.30 (95% CI 1.26-1.33). The addition of the presence of back pain, arthritis, angina, depressive symptoms, and cognitive difficulties further reduced the prevalence rate ratio to 1.12 (95% CI 1.09-1.15). There was statistical interaction on the multiplicative scale between female gender and region (P < 0.01). The Eastern Mediterranean region, which had the greatest loss of human development due to gender inequality, showed the largest gender gap in mobility difficulty, while the Western Pacific region, with the smallest loss of human development due to gender inequality, had the smallest gender gap in mobility difficulty. These are the first world-wide data to examine the gender gap in mobility. Differences in chronic diseases are the main reasons for this gender gap. The gender gap seems to be greater in regions with the largest loss of human development due to gender inequality.

NARROW-GAP POINT-TO-PLANE CORONA WITH HIGH VELOCITY FLOWS

EPA Science Inventory

The article discusses a mathematical model developed to describe a narrow- gap point- to- plane corona system used in the detoxification of chemical agents or their simulants, for which the degree of destruction depends on the strength of the electric field or electron energy. Na...

Explaining the Gender Wealth Gap

PubMed Central

Ruel, Erin; Hauser, Robert M.

2013-01-01

To assess and explain the United States’ gender wealth gap, we use the Wisconsin Longitudinal Study to examine wealth accumulated by a single cohort over 50 years by gender, by marital status, and limited to the respondents who are their family’s best financial reporters. We find large gender wealth gaps between currently married men and women, and never-married men and women. The never-married accumulate less wealth than the currently married, and there is a marital disruption cost to wealth accumulation. The status-attainment model shows the most power in explaining gender wealth gaps between these groups explaining about one-third to one-half of the gap, followed by the human-capital explanation. In other words, a lifetime of lower earnings for women translates into greatly reduced wealth accumulation. A gender wealth gap remains between married men and women after controlling for the full model that we speculate may be related to gender differences in investment strategies and selection effects. PMID:23264038

High-Pressure Study of Perovskite-Like Organometal Halide: Band-Gap Narrowing and Structural Evolution of [NH 3 -(CH 2 ) 4 -NH 3 ]CuCl 4

DOE Office of Scientific and Technical Information (OSTI.GOV)

Li, Qian; Li, Shourui; Wang, Kai

Searching for nontoxic and stable perovskite-like alternatives to lead-based halide perovskites for photovoltaic application is one urgent issue in photoelectricity science. Such exploration inevitably requires an effective method to accurately control both the crystalline and electronic structures. This work applies high pressure to narrow the band gap of perovskite-like organometal halide, [NH 3-(CH 2) 4-NH 3]CuCl 4 (DABCuCl4), through the crystalline-structure tuning. The band gap keeps decreasing below ~12 GPa, involving the shrinkage and distortion of CuCl 4 2–. Inorganic distortion determines both band-gap narrowing and phase transition between 6.4 and 10.5 GPa, and organic chains function as the springmore » cushion, evidenced by the structural transition at ~0.8 GPa. The supporting function of organic chains protects DABCuCl 4 from phase transition and amorphization, which also contributes to the sustaining band-gap narrowing. This work combines crystal structure and macroscopic property together and offers new strategies for the further design and synthesis of hybrid perovskite-like alternatives.« less

Gender Differences and Leadership: A Study

DTIC Science & Technology

1997-04-01

Verbal Self-Defense (New York: John Wiley and Sons, Inc., 1993), xvi. 25 Judith Tingley, “Communication: Brdiging the Gender Gap,” Healthcare...Internet, 29 March 1997, available from http://www.primenet.com/~ gender /. 5 Judith Tingley, Ph.D., “Communication: Bridging the Gender Gap...and Men in Conversation, New York, W. Morrow, 1990. Tingley, Judith , Ph.D., “Communication: Bridging the Gender Gap,” Healthcare Administration

The Persistence of the Gender Gap in Introductory Physics

NASA Astrophysics Data System (ADS)

Kost, Lauren E.; Pollock, Steven J.; Finkelstein, Noah D.

2008-10-01

We previously showed[l] that despite teaching with interactive engagement techniques, the gap in performance between males and females on conceptual learning surveys persisted from pre- to posttest, at our institution. Such findings were counter to previously published work[2]. Our current work analyzes factors that may influence the observed gender gap in our courses. Posttest conceptual assessment data are modeled using both multiple regression and logistic regression analyses to estimate the gender gap in posttest scores after controlling for background factors that vary by gender. We find that at our institution the gender gap persists in interactive physics classes, but is largely due to differences in physics and math preparation and incoming attitudes and beliefs.

Introductory Physics Gender Gaps: Pre- and Post-Studio Transition

NASA Astrophysics Data System (ADS)

Kohl, Patrick B.; Kuo, H. Vincent

2009-11-01

Prior work has characterized the gender gaps present in college-level introductory physics courses. Such work has also shown that research-based interactive engagement techniques can reduce or eliminate these gender gaps. In this paper, we study the gender gaps (and lack thereof) in the introductory calculus-based electricity and magnetism course at the Colorado School of Mines. We present eight semesters' worth of data, totaling 2577 students, with four semesters preceding a transition to Studio physics, and four following. We examine gender gaps in course grades, DFW (D grade, fail, or withdrawal) rates, and normalized gains on the Conceptual Survey of Electricity and Magnetism (CSEM), and consider factors such as student ACT scores and grades in prior math classes. We find little or no gap in male/female course grades and DFW rates, but substantial gaps in CSEM gains that are reduced somewhat by the transition to Studio physics.

The Gender and Race Composition of Jobs and the Male/Female, White/Black Pay Gaps.

ERIC Educational Resources Information Center

Tomaskovic-Devey, Donald

1993-01-01

Analysis of North Carolina survey data indicates that females' average hourly wages were 71% of males', and blacks' wages were 78% of whites'. Human capital factors (educational attainment and occupational experience) explained 31% and 3% of the racial and gender gaps, respectively. Job gender composition explained 56% of the gender gap; job…

Choice of Major: The Changing (Unchanging) Gender Gap.

ERIC Educational Resources Information Center

Turner, Sarah E.; Bowen, William G.

1999-01-01

Data on major choice and Scholastic Aptitude Test (SAT) scores show the following: (1) there is a widening gap between life and math/physical sciences in attractiveness to men and women; (2) SAT scores account for only part of the gap; and (3) gender gaps in major choice are attributable to different preferences, expectations, and gender-specific…

Patterns of Change in U.S. Gender Achievement Gaps during Elementary and Middle School

ERIC Educational Resources Information Center

Fahle, Erin

2016-01-01

Research on gender achievement gaps shows they exist, and are largest in the tails of the distribution, starting as early as Kindergarten and persisting through eighth grade. In mathematics, studies find small average gender achievement gaps and larger systematically male-favoring gaps among the highest achieving students. This paper seeks to…

Test Format and the Variation of Gender Achievement Gaps within the United States

ERIC Educational Resources Information Center

Reardon, Sean; Fahle, Erin; Kalogrides, Demetra; Podolsky, Anne; Zarate, Rosalia

2016-01-01

Prior research demonstrates the existence of gender achievement gaps and the variation in the magnitude of these gaps across states. This paper characterizes the extent to which the variation of gender achievement gaps on standardized tests across the United States can be explained by differing state accountability test formats. A comprehensive…

Age and gender differences in adolescent and adult overarm throwing.

PubMed

Lorson, Kevin M; Stodden, David F; Langendorfer, Stephen J; Goodway, Jacqueline D

2013-06-01

The purposes of this study were to examine age and gender differences in throwing performance across an underexplored portion of the lifespan: middle adolescents (14-17 years old), young adults (18-25 years old), and adults (35-55 years old). Throwing performance was assessed using the body component levels from Roberton's developmental sequences for force and ball velocity that were recorded by a radar gun. Participants in each age group performed between 5 to 10 forceful overhand throws toward a target approximately 15m to 20m from the thrower. A Wilcoxon-Mann-Whitney Test was used to determine gender differences and a Wilcoxon-Signed Ranks Test was used to determine age-group differences for each component. Gender and age-group differences in ball speed were determined by a 3 (age group) x 2 (gender) factorial analysis of variance with follow-up post-hoc tests. Young-adult men had higher body component levels and ball speed compared with the adolescent boys and adult men. Female age-group differences existed only for humerus action between young-adult and adult groups and for ball speed between young-adult and adolescent groups. Gender differences (p < .01) existed in component levels for the adolescent and young-adult groups, but not the adult groups. Gender differences in ball speed (p < .001) existed within each age group. Although these data were cross-sectional, the regressive developmental changes observed and the narrowing gender gap may eventually provide insight related to the relationships among motor skill competence, physical fitness, and physical activity across the lifespan.

Women and tobacco: a call for including gender in tobacco control research, policy and practice.

PubMed

Amos, Amanda; Greaves, Lorraine; Nichter, Mimi; Bloch, Michele

2012-03-01

Female smoking is predicted to double between 2005 and 2025. There have been numerous calls for action on women's tobacco use over the past two decades. In the present work, evidence about female tobacco use, progress, challenges and ways forward for developing gendered tobacco control is reviewed. Literature on girls, women and tobacco was reviewed to identify trends and determinants of tobacco use and exposure, the application of gender analysis, tobacco marketing, the impact of tobacco control on girls and women and ways to address these issues particularly in low-income and middle-income countries. Global female tobacco use is increasingly complex, involving diverse products and factors including tobacco marketing, globalisation and changes in women's status. In high-income countries female smoking is declining but is increasingly concentrated among disadvantaged women. In low-income and middle-income countries the pattern is more complex; in several regions the gap between girls' and boys' smoking is narrow. Gendered analyses and approaches to tobacco control are uncommon, especially in low-income and middle-income countries. Tobacco control has remained largely gender blind, with little recognition of the importance of understanding the context and challenges of girl's and women's smoking and secondhand smoke exposure. There has been little integration of gender considerations in research, policy and programmes. The present work makes a case for gender and diversity analyses in tobacco control to reflect and identify intersecting factors affecting women's tobacco use. This will help animate the WHO Framework Convention on Tobacco Control's concern for gender specificity and women's leadership, and reduce the impact of tobacco on women.

Cross-national associations between gender and mental disorders in the World Health Organization World Mental Health Surveys.

PubMed

Seedat, Soraya; Scott, Kate Margaret; Angermeyer, Matthias C; Berglund, Patricia; Bromet, Evelyn J; Brugha, Traolach S; Demyttenaere, Koen; de Girolamo, Giovanni; Haro, Josep Maria; Jin, Robert; Karam, Elie G; Kovess-Masfety, Viviane; Levinson, Daphna; Medina Mora, Maria Elena; Ono, Yutaka; Ormel, Johan; Pennell, Beth-Ellen; Posada-Villa, Jose; Sampson, Nancy A; Williams, David; Kessler, Ronald C

2009-07-01

Gender differences in mental disorders, including more anxiety and mood disorders among women and more externalizing disorders among men, are found consistently in epidemiological surveys. The gender roles hypothesis suggests that these differences narrow as the roles of women and men become more equal. To study time-space (cohort-country) variation in gender differences in lifetime DSM-IV mental disorders across cohorts in 15 countries in the World Health Organization World Mental Health Survey Initiative and to determine if this variation is significantly related to time-space variation in female gender role traditionality as measured by aggregate patterns of female education, employment, marital timing, and use of birth control. Face-to-face household surveys. Africa, the Americas, Asia, Europe, the Middle East, and the Pacific. Community-dwelling adults (N = 72,933). The World Health Organization Composite International Diagnostic Interview assessed lifetime prevalence and age at onset of 18 DSM-IV anxiety, mood, externalizing, and substance disorders. Survival analyses estimated time-space variation in female to male odds ratios of these disorders across cohorts defined by the following age ranges: 18 to 34, 35 to 49, 50 to 64, and 65 years and older. Structural equation analysis examined predictive effects of variation in gender role traditionality on these odds ratios. In all cohorts and countries, women had more anxiety and mood disorders than men, and men had more externalizing and substance disorders than women. Although gender differences were generally consistent across cohorts, significant narrowing was found in recent cohorts for major depressive disorder and substance disorders. This narrowing was significantly related to temporal (major depressive disorder) and spatial (substance disorders) variation in gender role traditionality. While gender differences in most lifetime mental disorders were fairly stable over the time-space units studied, substantial intercohort narrowing of differences in major depression was found to be related to changes in the traditionality of female gender roles. Additional research is needed to understand why this temporal narrowing was confined to major depression.

The Structure of A Pacific Narrow Cold Frontal Rainband

NASA Technical Reports Server (NTRS)

Jorgensen, David P.; Pu, Zhaoxia; Persson, Ola; Tao, Wei-Kuo; Starr, David OC. (Technical Monitor)

2002-01-01

A NOAA P-3 instrumented aircraft observed an intense, fast-moving narrow cold frontal Farmhand as it approached the Pacific Northwest coast on 19 February 2001 during the Pacific Coastal Jets Experiment. Pseudo-dual-Doppler analyses performed on the airborne Doppler radar data while the frontal system was well offshore indicated that a narrow ribbon of very high radar reflectively convective cores characterized the Farmhand at low levels with echo tops to approximately 4-5 km. The NCFR exhibited gaps in its narrow ribbon of high reflectively, probably as a result of hydrodynamic instability all no its advancing cold pool leading edge. In contrast to some earlier studies of cold frontal rainbands, density current theory described well the motion of the overall front. The character of the updraft structure associated with the heavy rainfall at its leading edge varied across the gap region. The vertical shear of the cross-frontal low-level ambient flow exerted a strong influence on the updraft character, consistent with theoretical arguments developed for squall lines describing the balance of vorticity at the leading edge. In short regions south of the gaps the vertical wind shear was strongest with the updrafts and rain shafts more intense, narrower, and more erect or even downshear tilted. North of the gaps the wind shear weakened with less intense Dihedrals which tilted upshear with a broader band of rainfall. Simulations using a nonhydrostatic mesoscale nested grid model are used to investigate the gap regions, particularly the balance of cold pool induced to pre-frontal ambient shears at the leading edge. Observations confirm the model results that the updraft character depends on the balance of vorticity at the leading edge. Downshear-tilted updrafts imply that convection south of the gap regions would weaken with time relative to the frontal segments north of the gaps since inflow air would be affected by passage through the heavy rain region before ascent, suggesting a mechanism for gap filling.

Strategies for narrowing the maize yield gap of household farms through precision fertigation under irrigated conditions using CERES-Maize model.

PubMed

Liu, Jiangang; Wang, Guangyao; Chu, Qingquan; Chen, Fu

2017-07-01

Nitrogen (N) application significantly increases maize yield; however, the unreasonable use of N fertilizer is common in China. The analysis of crop yield gaps can reveal the limiting factors for yield improvement, but there is a lack of practical strategies for narrowing yield gaps of household farms. The objectives of this study were to assess the yield gap of summer maize using an integrative method and to develop strategies for narrowing the maize yield gap through precise N fertilization. The results indicated that there was a significant difference in maize yield among fields, with a low level of variation. Additionally, significant differences in N application rate were observed among fields, with high variability. Based on long-term simulation results, the optimal N application rate was 193 kg ha -1 , with a corresponding maximum attainable yield (AY max ) of 10 318 kg ha -1 . A considerable difference between farmers' yields and AY max was observed. Low agronomic efficiency of applied N fertilizer (AE N ) in farmers' fields was exhibited. The integrative method lays a foundation for exploring the specific factors constraining crop yield gaps at the field scale and for developing strategies for rapid site-specific N management. Optimization strategies to narrow the maize yield gap include increasing N application rates and adjusting the N application schedule. © 2016 Society of Chemical Industry. © 2016 Society of Chemical Industry.

Caregiving Experience and Its Relation to Perceptual Narrowing of Face Gender

ERIC Educational Resources Information Center

Rennels, Jennifer L.; Juvrud, Joshua; Kayl, Andrea J.; Asperholm, Martin; Gredebäck, Gustaf; Herlitz, Agneta

2017-01-01

This research examined whether infants tested longitudinally at 10, 14, and 16 months of age (N = 58) showed evidence of perceptual narrowing based on face gender (better discrimination of female than male faces) and whether changes in caregiving experience longitudinally predicted changes in infants' discrimination of male faces. To test face…

Aiming at Narrowing Social Gaps in Israel through a Special Program of Everyman's University.

ERIC Educational Resources Information Center

Guri, Sarah

The philosophy and implementation of the Community Leaders Project at Everyman's University (EU), the Open University of Israel, are discussed. The project is designed to narrow social gaps in Israel by upgrading the educational level of disadvantaged populations and by developing indigeneous leadership for decision-making in the most…

Boiling Visualization and Critical Heat Flux Phenomena In Narrow Rectangular Gap

DOE Office of Scientific and Technical Information (OSTI.GOV)

J. J. Kim; Y. H. Kim; S. J. Kim

2004-12-01

An experimental study was performed to investifate the pool boling critical hear flux (CHF) on one-dimensional inclined rectangular channels with narrow gaps by changing the orientation of a copper test heater assembly. In a pool of saturated water at atmospheric pressure, the test parameters include the gap sizes of 1,2,5, and 10 mm, andthe surface orientation angles from the downward facing position (180 degrees) to the vertical position (90 degress) respectively.

Conflating Gender and Identity: The Need for Gender-Fluid Programming in Community Colleges

ERIC Educational Resources Information Center

Zamani-Gallaher, Eboni M.

2017-01-01

This chapter explores the role of gender as a critical aspect of identity formation. The chapter reviews how narrow definitions of gender deeply shape campus climate, particularly for individuals who challenge norms in terms of gender identity, gender expression, and gender roles.

The gender gap in science: How long until women are equally represented?

PubMed Central

Stuart-Fox, Devi; Hauser, Cindy E.

2018-01-01

Women comprise a minority of the Science, Technology, Engineering, Mathematics, and Medicine (STEMM) workforce. Quantifying the gender gap may identify fields that will not reach parity without intervention, reveal underappreciated biases, and inform benchmarks for gender balance among conference speakers, editors, and hiring committees. Using the PubMed and arXiv databases, we estimated the gender of 36 million authors from >100 countries publishing in >6000 journals, covering most STEMM disciplines over the last 15 years, and made a web app allowing easy access to the data (https://lukeholman.github.io/genderGap/). Despite recent progress, the gender gap appears likely to persist for generations, particularly in surgery, computer science, physics, and maths. The gap is especially large in authorship positions associated with seniority, and prestigious journals have fewer women authors. Additionally, we estimate that men are invited by journals to submit papers at approximately double the rate of women. Wealthy countries, notably Japan, Germany, and Switzerland, had fewer women authors than poorer ones. We conclude that the STEMM gender gap will not close without further reforms in education, mentoring, and academic publishing. PMID:29672508

The gender gap in science: How long until women are equally represented?

PubMed

Holman, Luke; Stuart-Fox, Devi; Hauser, Cindy E

2018-04-01

Women comprise a minority of the Science, Technology, Engineering, Mathematics, and Medicine (STEMM) workforce. Quantifying the gender gap may identify fields that will not reach parity without intervention, reveal underappreciated biases, and inform benchmarks for gender balance among conference speakers, editors, and hiring committees. Using the PubMed and arXiv databases, we estimated the gender of 36 million authors from >100 countries publishing in >6000 journals, covering most STEMM disciplines over the last 15 years, and made a web app allowing easy access to the data (https://lukeholman.github.io/genderGap/). Despite recent progress, the gender gap appears likely to persist for generations, particularly in surgery, computer science, physics, and maths. The gap is especially large in authorship positions associated with seniority, and prestigious journals have fewer women authors. Additionally, we estimate that men are invited by journals to submit papers at approximately double the rate of women. Wealthy countries, notably Japan, Germany, and Switzerland, had fewer women authors than poorer ones. We conclude that the STEMM gender gap will not close without further reforms in education, mentoring, and academic publishing.

Unpacking the Gender Gap in Postsecondary Participation among African Americans and Caucasians Using Hierarchical Generalized Linear Modeling

ERIC Educational Resources Information Center

Tekleselassie, Abebayehu; Mallery, Coretta; Choi, Jaehwa

2013-01-01

National reports recognize a growing gender gap in postsecondary enrollment as a major challenge impacting the lives of young men, particularly African Americans. Previous gender and race specific research is largely inconclusive. It is, for example, unclear from previous research how persistent the gender gap is across various school contexts,…

Have Gender Gaps in Math Closed? Achievement, Teacher Perceptions, and Learning Behaviors across Two ECLS-K Cohorts

ERIC Educational Resources Information Center

Cimpian, Joseph R.; Lubienski, Sarah T.; Timmer, Jennifer D.; Makowski, Martha B.; Miller, Emily K.

2016-01-01

Studies using data from the Early Childhood Longitudinal Study-Kindergarten Class of 1998-1999 (ECLS-K:1999) revealed gender gaps in mathematics achievement and teacher perceptions. However, recent evidence suggests that gender gaps have closed on state tests, raising the question of whether such gaps are absent in the ECLS-K:2011 cohort.…

Gender difference in cycling speed and age of winning performers in ultra-cycling - the 508-mile "Furnace Creek" from 1983 to 2012.

PubMed

Rüst, Christoph Alexander; Rosemann, Thomas; Lepers, Romuald; Knechtle, Beat

2015-01-01

We analysed (i) the gender difference in cycling speed and (ii) the age of winning performers in the 508-mile "Furnace Creek 508". Changes in cycling speeds and gender differences from 1983 to 2012 were analysed using linear, non-linear and hierarchical multi-level regression analyses for the annual three fastest women and men. Cycling speed increased non-linearly in men from 14.6 (s = 0.3) km · h(-1) (1983) to 27.1 (s = 0.7) km · h(-1) (2012) and non-linearly in women from 11.0 (s = 0.3) km · h(-1) (1984) to 24.2 (s = 0.2) km · h(-1) (2012). The gender difference in cycling speed decreased linearly from 26.2 (s = 0.5)% (1984) to 10.7 (s = 1.9)% (2012). The age of winning performers increased from 26 (s = 2) years (1984) to 43 (s = 11) years (2012) in women and from 33 (s = 6) years (1983) to 50 (s = 5) years (2012) in men. To summarise, these results suggest that (i) women will be able to narrow the gender gap in cycling speed in the near future in an ultra-endurance cycling race such as the "Furnace Creek 508" due to the linear decrease in gender difference and (ii) the maturity of these athletes has changed during the last three decades where winning performers become older and faster across years.

The black gender gap in educational attainment: historical trends and racial comparisons.

PubMed

McDaniel, Anne; DiPrete, Thomas A; Buchmann, Claudia; Shwed, Uri

2011-08-01

It is often asserted that the gender gap in educational attainment is larger for blacks than whites, but historical trends comparing the black and white gender gap have received surprisingly little attention. Analysis of historical data from the U.S. census IPUMS samples shows that the gender gap in college completion has evolved differently for whites and blacks. Historically, the female advantage in educational attainment among blacks is linked to more favorable labor market opportunities and stronger incentives for employment for educated black women. Blacks, particularly black males, still lag far behind whites in their rates of college completion, but the striking educational gains of white women have caused the racial patterns of gender differences in college completion rates to grow more similar over time. While some have linked the disadvantaged position of black males to their high risk of incarceration, our estimates suggest that incarceration has a relatively small impact on the black gender gap and the racial gap in college completion rates for males in the United States.

Origin of band gap bowing in dilute GaAs1-xNx and GaP1-xNx alloys: A real-space view

NASA Astrophysics Data System (ADS)

Virkkala, Ville; Havu, Ville; Tuomisto, Filip; Puska, Martti J.

2013-07-01

The origin of the band gap bowing in dilute nitrogen doped gallium based III-V semiconductors is largely debated. In this paper we show the dilute GaAs1-xNx and GaP1-xNx as representative examples that the nitrogen-induced states close to the conduction band minimum propagate along the zigzag chains on the {110} planes. Thereby states originating from different N atoms interact with each other resulting in broadening of the nitrogen-induced states which narrows the band gap. Our modeling based on ab initio theoretical calculations explains the experimentally observed N concentration dependent band gap narrowing both qualitatively and quantitatively.

Simultaneous band-gap narrowing and carrier-lifetime prolongation of organic–inorganic trihalide perovskites

PubMed Central

Kong, Lingping; Liu, Gang; Gong, Jue; Hu, Qingyang; Schaller, Richard D.; Dera, Przemyslaw; Zhang, Dongzhou; Liu, Zhenxian; Yang, Wenge; Zhu, Kai; Tang, Yuzhao; Wang, Chuanyi; Wei, Su-Huai; Xu, Tao; Mao, Ho-kwang

2016-01-01

The organic–inorganic hybrid lead trihalide perovskites have been emerging as the most attractive photovoltaic materials. As regulated by Shockley–Queisser theory, a formidable materials science challenge for improvement to the next level requires further band-gap narrowing for broader absorption in solar spectrum, while retaining or even synergistically prolonging the carrier lifetime, a critical factor responsible for attaining the near-band-gap photovoltage. Herein, by applying controllable hydrostatic pressure, we have achieved unprecedented simultaneous enhancement in both band-gap narrowing and carrier-lifetime prolongation (up to 70% to ∼100% increase) under mild pressures at ∼0.3 GPa. The pressure-induced modulation on pure hybrid perovskites without introducing any adverse chemical or thermal effect clearly demonstrates the importance of band edges on the photon–electron interaction and maps a pioneering route toward a further increase in their photovoltaic performance. PMID:27444014

Estimating Gender Wage Gaps: A Data Update

ERIC Educational Resources Information Center

McDonald, Judith A.; Thornton, Robert J.

2016-01-01

In the authors' 2011 "JEE" article, "Estimating Gender Wage Gaps," they described an interesting class project that allowed students to estimate the current gender earnings gap for recent college graduates using data from the National Association of Colleges and Employers (NACE). Unfortunately, since 2012, NACE no longer…

Achievement and Equity in Catholic and Public Secondary Schools: Gender Gap Comparisons from 1972 to 1992.

ERIC Educational Resources Information Center

Riordan, Cornelius; Galipeau, Kim

Recent reports have confirmed that boys, not girls, are increasingly on the unfavorable side of the gender gap in education and developmental matters. This paper provides an analysis of trends in the gender gap among students in Catholic and public schools during the period from 1972 to 1992 for a select set of variables. Although the gender gap…

The Gender Gap in Mathematics: Evidence from Low- and Middle-Income Countries. NBER Working Paper No. 18464

ERIC Educational Resources Information Center

Bharadwaj, Prashant; De Giorgi, Giacomo; Hansen, David; Neilson, Christopher

2012-01-01

We establish the presence of a gender gap in mathematics across many low- and middle-income countries using detailed, comparable test score data. Examining micro level data on school performance linked to household demographics we note that first, the gender gap appears to increase with age. Indeed, the gap nearly doubles when comparing 4th grade…

Educational standardization and gender differences in mathematics achievement: A comparative study.

PubMed

Ayalon, Hanna; Livneh, Idit

2013-03-01

We argue that between-country variations in the gender gap in mathematics are related to the level of educational system standardization. In countries with standardized educational systems both genders are exposed to similar knowledge and are motivated to invest in studying mathematics, which leads to similar achievements. We hypothesize that national examinations and between-teacher uniformity in covering major mathematics topics are associated with a smaller gender gap in a country. Based on Trends of International Mathematical and Science Study (TIMSS) 2003, we use multilevel regression models to compare the link of these two factors to the gender gap in 32 countries, controlling for various country characteristics. The use of national examinations and less between-teacher instructional variation prove major factors in reducing the advantage of boys over girls in mathematics scores and in the odds of excelling. Factors representing gender stratification, often analyzed in comparative gender-gap research in mathematics, are at most marginal in respect of the gap. Copyright © 2012 Elsevier Inc. All rights reserved.

The Home/School Connection and Its Role in Narrowing the Academic Achievement Gap: An Ecological Systems Theoretical Perspective

ERIC Educational Resources Information Center

Blandin, Allyson

2017-01-01

This literature review seeks to evaluate previous studies on the topic of the home/school connection and its role in enhancing students' academic achievement and narrowing the academic achievement gap. The ecological systems theory framework will facilitate the discussion of the importance of the home/school connection phenomenon. Perspectives…

Tackling Disadvantage: What Works in Narrowing the Achievement Gap in Schools

ERIC Educational Resources Information Center

Demie, Feyisa; Mclean, Christabel

2015-01-01

This study examines the success factors behind narrowing the achievement gap of disadvantaged pupils who are entitled to free school meals. A complementary methodological approach including a case study and focus group were used to explore performance and the views of teachers, parents and pupils. The key criteria for the selection of schools were…

Photography as a Means of Narrowing the Gap between Physics and Students

ERIC Educational Resources Information Center

Bagno, Esther; Eylon, Bat-Sheva; Levy, Smadar

2007-01-01

Many teachers would agree that not all their A-level students appreciate the beauty of physics or enjoy solving complex problems. In this article, we describe a photo-contest activity aimed at narrowing the gap between physics and students. The photo contest, involving both students and teachers, is guided by the National Center of Physics…

Gender Gaps in Political Participation across Sub-Saharan African Nations

ERIC Educational Resources Information Center

Coffe, Hilde; Bolzendahl, Catherine

2011-01-01

A substantial literature has studied gender differences in political participation in Western industrialized democracies, but little is known about such gaps in sub-Saharan African nations. Using 2005 Afrobarometer data, this paper presents a systematic investigation of the gender gap in political participation across 18 sub-Saharan African…

Childhood Illness and the Gender Gap in Adolescent Education in Low- and Middle-Income Countries.

PubMed

Alsan, Marcella; Xing, Anlu; Wise, Paul; Darmstadt, Gary L; Bendavid, Eran

2017-07-01

Achieving gender equality in education is an important development goal. We tested the hypothesis that the gender gap in adolescent education is accentuated by illnesses among young children in the household. Using Demographic and Health Surveys on 41 821 households in 38 low- and middle-income countries, we used linear regression to estimate the difference in the probability adolescent girls and boys were in school, and how this gap responded to illness episodes among children <5 years old. To test the hypothesis that investments in child health are related to the gender gap in education, we assessed the relationship between the gender gap and national immunization coverage. In our sample of 120 708 adolescent boys and girls residing in 38 countries, girls were 5.08% less likely to attend school than boys in the absence of a recent illness among young children within the same household (95% confidence interval [CI], 5.50%-4.65%). This gap increased to 7.77% (95% CI, 8.24%-7.30%) and 8.53% (95% CI, 9.32%-7.74%) if the household reported 1 and 2 or more illness episodes, respectively. The gender gap in schooling in response to illness was larger in households with a working mother. Increases in child vaccination rates were associated with a closing of the gender gap in schooling (correlation coefficient = 0.34, P = .02). Illnesses among children strongly predict a widening of the gender gap in education. Investments in early childhood health may have important effects on schooling attainment for adolescent girls. Copyright © 2017 by the American Academy of Pediatrics.

Gender and Minority Achievement Gaps in Science in Eighth Grade: Item Analyses of Nationally Representative Data. Research Report. ETS RR-17-36

ERIC Educational Resources Information Center

Qian, Xiaoyu; Nandakumar, Ratna; Glutting, Joseoph; Ford, Danielle; Fifield, Steve

2017-01-01

In this study, we investigated gender and minority achievement gaps on 8th-grade science items employing a multilevel item response methodology. Both gaps were wider on physics and earth science items than on biology and chemistry items. Larger gender gaps were found on items with specific topics favoring male students than other items, for…

Gender and migration on the labour market: Additive or interacting disadvantages in Germany?

PubMed

Fleischmann, Fenella; Höhne, Jutta

2013-09-01

Despite substantial differences in labour market attainment according to gender and migration status, gender and ethnic differences in labour market behaviour are most often studied separately. In contrast, this study describes and analyses interactions between gender, ethnic background and immigrant generation with regard to labour market participation, part-time work, and occupational status. The double comparison aims to reveal whether gender gaps in these labour market outcomes among the majority population generalise to ethnic minorities. Moreover, we ask whether variation in gender gaps in labour market behaviour follows the patterns in migrants' origin countries, and whether gender gaps show signs of intergenerational assimilation. Our heterogeneous choice and OLS regressions of 2009 German Microcensus data reveal considerable variation in gender gaps in labour market behaviour between East and West Germany, across ethnic groups and across generations. Intergenerational comparisons show that most ethnic minorities assimilate towards German patterns of gendered labour market attainment. Copyright © 2013 Elsevier Inc. All rights reserved.

Differences in wage rates for males and females in the health sector: a consideration of unpaid overtime to decompose the gender wage gap.

PubMed

Vecchio, Nerina; Scuffham, Paul A; Hilton, Michael F; Whiteford, Harvey A

2013-02-25

In Australia a persistent and sizable gender wage gap exists. In recent years this gap has been steadily widening. The negative impact of gender wage differentials is the disincentive to work more hours. This implies a substantial cost on the Australian health sector. This study aimed to identify the magnitude of gender wage differentials within the health sector. The investigation accounts for unpaid overtime. Given the limited availability of information, little empirical evidence exists that accounts for unpaid overtime. Information was collected from a sample of 10,066 Australian full-time employees within the health sector. Initially, ordinary least-squares regression was used to identify the gender wage gap when unpaid overtime was included and then excluded from the model. The sample was also stratified by gender and then by occupation to allow for comparisons. Later the Blinder-Oaxaca decomposition method was employed to identify and quantify the contribution of individual endowments to wage differentials between males and females. The analyses of data revealed a gender wage gap that varied across occupations. The inclusion of unpaid overtime in the analysis led to a slight reduction in the wage differential. The results showed an adjusted wage gap of 16.7%. Unpaid overtime made a significant but small contribution to wage differentials. Being female remained the major contributing factor to the wage gap. Given that wage differentials provide a disincentive to work more hours, serious attempts to deal with the skilled labour shortage in the health sector need to address the gender wage gap.

Early Gender Test Score Gaps across OECD Countries

ERIC Educational Resources Information Center

Bedard, Kelly; Cho, Insook

2010-01-01

The results reported in this paper contribute to the debate about gender skill gaps in at least three ways. First, we document the large differences in early gender gaps across developed countries using a large scale, modern, representative data source. Second, we show that countries with pro-female sorting, countries that place girls in classes…

Unpacking Gender Differences in Students' Perceived Experiences in Introductory Physics

NASA Astrophysics Data System (ADS)

Kost, Lauren E.; Pollock, Steven J.; Finkelstein, Noah D.

2009-11-01

Prior research has shown, at our institution: 1) males outperform females on conceptual assessments (a gender gap), 2) the gender gap persists despite the use of research-based reforms, and 3) the gender gap is correlated with students' physics and mathematics background and prior attitudes and beliefs [Kost, et al. PRST-PER, 5, 010101]. Our follow-up work begins to explore how males and females experience the introductory course differently and how these differences relate to the gender gap. We gave a survey to students in the introductory course in which we investigated students' physics identity and self-efficacy. We find there are significant gender differences in each of these three areas, and further find that these measures are weakly correlated with student conceptual performance, and moderately correlated with course grade.

Women and Men in Sport Performance: The Gender Gap has not Evolved since 1983.

PubMed

Thibault, Valérie; Guillaume, Marion; Berthelot, Geoffroy; Helou, Nour El; Schaal, Karine; Quinquis, Laurent; Nassif, Hala; Tafflet, Muriel; Escolano, Sylvie; Hermine, Olivier; Toussaint, Jean-François

2010-01-01

Sex is a major factor influencing best performances and world records. Here the evolution of the difference between men and women's best performances is characterized through the analysis of 82 quantifiable events since the beginning of the Olympic era. For each event in swimming, athletics, track cycling, weightlifting and speed skating the gender gap is fitted to compare male and female records. It is also studied through the best performance of the top 10 performers in each gender for swimming and athletics. A stabilization of the gender gap in world records is observed after 1983, at a mean difference of 10.0% ± 2.94 between men and women for all events. The gender gap ranges from 5.5% (800-m freestyle, swimming) to 18.8% (long jump). The mean gap is 10.7% for running performances, 17.5% for jumps, 8.9% for swimming races, 7.0% for speed skating and 8.7% in cycling. The top ten performers' analysis reveals a similar gender gap trend with a stabilization in 1982 at 11.7%, despite the large growth in participation of women from eastern and western countries, that coincided with later- published evidence of state-institutionalized or individual doping. These results suggest that women will not run, jump, swim or ride as fast as men. Key pointsSex is a major factor influencing best performances and world records.A stabilization of the gender gap in world records is observed after 1983, at a mean difference of 10.0% ± 2.94 between men and women for all events.The gender gap ranges from 5.5% (800-m freestyle, swimming) to 36.8% (weight lifting).The top ten performers' analysis reveals a similar gender gap trend with a stabilization in 1982 at 11.7%.Results suggest that women will not run, jump, swim or ride as fast as men.

Women and Men in Sport Performance: The Gender Gap has not Evolved since 1983

PubMed Central

Thibault, Valérie; Guillaume, Marion; Berthelot, Geoffroy; Helou, Nour El; Schaal, Karine; Quinquis, Laurent; Nassif, Hala; Tafflet, Muriel; Escolano, Sylvie; Hermine, Olivier; Toussaint, Jean-François.

2010-01-01

Sex is a major factor influencing best performances and world records. Here the evolution of the difference between men and women’s best performances is characterized through the analysis of 82 quantifiable events since the beginning of the Olympic era. For each event in swimming, athletics, track cycling, weightlifting and speed skating the gender gap is fitted to compare male and female records. It is also studied through the best performance of the top 10 performers in each gender for swimming and athletics. A stabilization of the gender gap in world records is observed after 1983, at a mean difference of 10.0% ± 2.94 between men and women for all events. The gender gap ranges from 5.5% (800-m freestyle, swimming) to 18.8% (long jump). The mean gap is 10.7% for running performances, 17.5% for jumps, 8.9% for swimming races, 7.0% for speed skating and 8.7% in cycling. The top ten performers’ analysis reveals a similar gender gap trend with a stabilization in 1982 at 11.7%, despite the large growth in participation of women from eastern and western countries, that coincided with later- published evidence of state-institutionalized or individual doping. These results suggest that women will not run, jump, swim or ride as fast as men. Key points Sex is a major factor influencing best performances and world records. A stabilization of the gender gap in world records is observed after 1983, at a mean difference of 10.0% ± 2.94 between men and women for all events. The gender gap ranges from 5.5% (800-m freestyle, swimming) to 36.8% (weight lifting). The top ten performers’ analysis reveals a similar gender gap trend with a stabilization in 1982 at 11.7%. Results suggest that women will not run, jump, swim or ride as fast as men. PMID:24149688

Cross-national associations between gender and mental disorders in the WHO World Mental Health Surveys

PubMed Central

Seedat, Soraya; Scott, Kate Margaret; Angermeyer, Matthias C.; Berglund, Patricia; Bromet, Evelyn J.; Brugha, Traolach S.; Demyttenaere, Koen; de Girolamo, Giovanni; Haro, Josep Maria; Jin, Robert; Karam, Elie G.; Kovess-Masfety, Viviane; Levinson, Daphna; Mora, Maria Elena Medina; Ono, Yutaka; Ormel, Johan; Pennell, Beth-Ellen; Posada-Villa, Jose; Sampson, Nancy A.; Williams, David; Kessler, Ronald C.

2009-01-01

Context Gender differences in mental disorders, including more anxiety-mood disorders among women and more externalizing disorders among men, are found consistently in epidemiological surveys. The “gender roles” hypothesis suggests that these differences should narrow as the roles of women and men become more equal. Objective To study time-space (i.e., cohort-country) variation in gender differences in lifetime DSM-IV mental disorders across cohorts in 15 countries in the WHO World Mental Health (WMH) Survey Initiative and determine if this variation is significantly related to time-space variation in female gender role traditionality (GRT) as measured by aggregate patterns of female education, employment, marital timing, and use of birth control. Design/Setting and Participants Face-to face household surveys of 72,933 community-dwelling adults in Africa, the Americas, Asia, Europe, the Middle East, and the Pacific. Main Outcomes The WHO Composite International Diagnostic Interview (CIDI) assessed lifetime prevalence and age-of-onset of 18 DSM-IV anxiety, mood, externalizing, and substance disorders. Survival analyses estimated time-space variation in Female:Male (F:M) odds-ratios (ORs) of these disorders across cohorts defined by age ranges 18–34, 35–49, 50–64, and 65+. Structural equation analysis examined predictive effects of variation in GRT on these ORs. Results Women had more anxiety-mood disorders than men and men more externalizing-substance disorders than women in all cohorts and countries. Although gender differences were generally consistent across cohorts, significant narrowing was found in recent cohorts for major depressive disorder (MDD) and substance disorders. This narrowing was significantly related to temporal (MDD) and spatial (substance disorders) variation in GRT. Conclusion While gender differences in most lifetime mental disorders were fairly stable over the time-space units studied, substantial inter-cohort narrowing of differences in major depression was found related to changes in the traditionality of female gender roles. Further research is needed to understand why this temporal narrowing was confined to major depression. PMID:19581570

Gender and Time for Sleep among U.S. Adults

PubMed Central

Burgard, Sarah A.; Ailshire, Jennifer A.

2014-01-01

Do women really sleep more than men? Biomedical and social scientific studies show longer sleep durations for women, a surprising finding given sociological research showing women have more unpaid work and less high-quality leisure time compared to men. We assess explanations for gender differences in time for sleep, including compositional differences in levels of engagement in paid and unpaid labor, gendered responses to work and family responsibilities, and differences in napping, bedtimes, and interrupted sleep for caregiving. We examine the overall gender gap in time for sleep as well as gaps within family life-course stages based on age, partnership, and parenthood statuses. We analyze minutes of sleep from a diary day collected from nationally representative samples of working-age adults in the American Time Use Surveys of 2003 to 2007. Overall and at most life course stages, women slept more than men. Much of the gap is explained by work and family responsibilities and gendered time tradeoffs; as such, gender differences vary across life course stages. The gender gap in sleep time favoring women is relatively small for most comparisons and should be considered in light of the gender gap in leisure time favoring men at all life course stages. PMID:25237206

Gender Gaps and Gendered Action in a First-Year Physics Laboratory

ERIC Educational Resources Information Center

Day, James; Stang, Jared B.; Holmes, N. G.; Kumar, Dhaneesh; Bonn, D. A.

2016-01-01

It is established that male students outperform female students on almost all commonly used physics concept inventories. However, there is significant variation in the factors that contribute to the gap, as well as the direction in which they influence it. It is presently unknown if such a gender gap exists on the relatively new Concise Data…

The Differential Valuation of Women's Work: A New Look at the Gender Gap in Lawyers' Incomes

ERIC Educational Resources Information Center

Dinovitzer, Ronit; Reichman, Nancy; Sterling, Joyce

2009-01-01

This article seeks to identify the mechanisms underlying the gender wage gap among new lawyers. Relying on nationally representative data to examine the salaries of lawyers working fulltime in private practice, we find a gender gap of about 5 percent. Identifying four mechanisms--work profiles, opportunity paths and structures, credentials, and…

Gender and Racial Gaps in Earnings among Recent College Graduates

ERIC Educational Resources Information Center

Zhang, Liang

2008-01-01

Using a nationally representative sample of baccalaureate graduates from 1993 (B&B 93/97/03), I explore factors that contribute to the gender and racial gap in earnings among recent college graduate. Results indicate that college major remains the most significant factor in accounting for the gender gap in pay. Female graduates are still left…

The gender gap in mortality: How much is explained by behavior?

PubMed

Schünemann, Johannes; Strulik, Holger; Trimborn, Timo

2017-07-01

In developed countries, women are expected to live about 4-5 years longer than men. In this paper, we develop a novel approach to gauge the extent to which gender differences in longevity can be attributed to gender-specific preferences and health behavior. We set up a physiologically founded model of health deficit accumulation and calibrate it using recent insights from gerontology. From fitting life cycle health expenditure and life expectancy, we obtain estimates of the gender-specific preference parameters. We then perform the counterfactual experiment of endowing women with the preferences of men. In our benchmark scenario, this reduces the gender gap in life expectancy from 4.6 to 1.4 years. When we add gender-specific preferences for unhealthy consumption, the model can motivate up to 89 percent of the gender gap. Our theory offers also an economic explanation for why the gender gap declines with rising income. Copyright © 2017 Elsevier B.V. All rights reserved.

Differences in wage rates for males and females in the health sector: a consideration of unpaid overtime to decompose the gender wage gap

PubMed Central

2013-01-01

Background In Australia a persistent and sizable gender wage gap exists. In recent years this gap has been steadily widening. The negative impact of gender wage differentials is the disincentive to work more hours. This implies a substantial cost on the Australian health sector. This study aimed to identify the magnitude of gender wage differentials within the health sector. The investigation accounts for unpaid overtime. Given the limited availability of information, little empirical evidence exists that accounts for unpaid overtime. Methods Information was collected from a sample of 10,066 Australian full-time employees within the health sector. Initially, ordinary least-squares regression was used to identify the gender wage gap when unpaid overtime was included and then excluded from the model. The sample was also stratified by gender and then by occupation to allow for comparisons. Later the Blinder–Oaxaca decomposition method was employed to identify and quantify the contribution of individual endowments to wage differentials between males and females. Results The analyses of data revealed a gender wage gap that varied across occupations. The inclusion of unpaid overtime in the analysis led to a slight reduction in the wage differential. The results showed an adjusted wage gap of 16.7%. Conclusions Unpaid overtime made a significant but small contribution to wage differentials. Being female remained the major contributing factor to the wage gap. Given that wage differentials provide a disincentive to work more hours, serious attempts to deal with the skilled labour shortage in the health sector need to address the gender wage gap. PMID:23433245

Gender differences in food insecurity and morbidity among adolescents in southwest Ethiopia.

PubMed

Belachew, Tefera; Hadley, Craig; Lindstrom, David; Gebremariam, Abebe; Michael, Kifle Wolde; Getachew, Yehenew; Lachat, Carl; Kolsteren, Patrick

2011-02-01

Several studies have shown the adverse health consequences of food insecurity on household members. To what extent this relationship is mediated by gender among adolescents has not been documented. We hypothesized that the health consequences of food insecurity would be more pronounced in girls compared with boys. We used the first-round data from a 5-year longitudinal family survey of 2084 adolescents aged 13 to 17 years from urban, semiurban, and rural areas of southwest Ethiopia. Stratified random sampling was used to select households and adolescents. Multivariable logistic regression was used to compare self-reported morbidity according to food-security status and gender after adjusting for nutritional and socioeconomic covariates. Overall, 29.9% of girls and 19.2% of boys reported illness during the previous 1 month before the survey. Food-insecure girls were twice as likely to report suffering from an illness (P < .01) compared with boys, and the risk of reported illness tripled when girls were food insecure and were part of food-insecure households (P < .01). Girls were 7.4 and 7.0 times more likely to report difficulties with activities because of poor health and having a feeling of tiredness/low energy compared with boys, respectively (P < .001). We report that in a food-insecure situation, gender is an important predictor of an adolescent's self-reported health status. Food-security interventions should consider gender as a key variable to narrow the gap in health between boys and girls.

Narrowing the Gap in Outcomes: Further Overview of Data and Evidence on the ECM Outcomes for Vulnerable Groups. Progress Report and Update

ERIC Educational Resources Information Center

Morris, Marian; Easton, Claire

2008-01-01

Narrowing the Gap (NtG) is a two-year development and research programme, funded by the Department for Children, Schools and Families (DCSF) and the Local Government Association (LGA), working in partnership with other agencies, including local authorities. It seeks to make a significant difference, on a national scale, to the performance of…

A More Nuanced Approach to the Fourth Estate

DTIC Science & Technology

2012-05-17

School of Journalism, 2004. Shepard , Alicia C. Narrowing the Gap - Military, Media and the Iraq War - Cantigny Conference Series. Chicago : The McCormick...wary of access pledge, Chicago Tribune, January 26, 2003. http://articles.chicagotribune.com/2003-01- 26/news/0301260301_1_gulf-war-iraq-vietnam-war...http://www.defense.gov/transcripts/transcript.aspx?transcriptid=2476 (accessed September 17, 2011). 149 Alicia C. Shepard , Narrowing the Gap

In One Voice: Mainstream and ELL Teachers Work Side-by-Side in the Classroom, Teaching Language through Content

ERIC Educational Resources Information Center

Pardini, Priscilla

2006-01-01

Narrowing the achievement gap between students who are native English speakers and those learning English as a second language is one of the biggest challenges facing U.S. educators. This article discusses the approaches used by the Saint Paul (Minn.) Public Schools in narrowing this achievement gap. Saint Paul (Minn.) Public Schools has one of…

Gender and Age-Appropriate Enrolment in Uganda

ERIC Educational Resources Information Center

Wells, Ryan

2009-01-01

Secondary school enrolment in Uganda has historically favoured males over females. Recently, however, researchers have reported that the secondary enrolment gender gap has significantly diminished, and perhaps even disappeared in Uganda. Even if gender parity is being achieved for enrolment broadly, there may be a gender gap concerning…

Electronic characterization of defects in narrow gap semiconductors

NASA Technical Reports Server (NTRS)

Patterson, James D.

1993-01-01

The study of point defects in semiconductors has a long and honorable history. In particular, the detailed understanding of shallow defects in common semiconductors traces back to the classic work of Kohn and Luttinger. However, the study of defects in narrow gap semiconductors represents a much less clear story. Here, both shallow defects (caused by long range potentials) and deep defects (from short range potentials) are far from being completely understood. In this study, all results are calculational and our focus is on the chemical trend of deep levels in narrow gap semiconductors. We study substitutional (including antisite), interstitial and ideal vacancy defects. For substitutional and interstitial impurities, the efects of relaxation are included. For materials like Hg(1-x)Cd(x)Te, we study how the deep levels vary with x, of particular interest is what substitutional and interstitial atoms yield energy levels in the gap i.e. actually produce deep ionized levels. Also, since the main technique utilized is Green's functions, we include some summary of that method.

Social determinants of health in India: progress and inequities across states.

PubMed

Cowling, Krycia; Dandona, Rakhi; Dandona, Lalit

2014-10-08

Despite the recognized importance of social determinants of health (SDH) in India, no compilation of the status of and inequities in SDH across India has been published. To address this gap, we assessed the levels and trends in major SDH in India from 1990 onwards and explored inequities by state, gender, caste, and urbanicity. Household- and individual-level SDH indicators were extracted from national household surveys conducted between 1990 and 2011 and means were computed across population subgroups and over time. The multidimensional poverty index (MPI), a composite measure of health, education, and standard of living, was calculated for all three rounds of the National Family Health Survey, adjusting the methodology to generate comparable findings from the three datasets. Data from government agencies were analyzed to assess voting patterns, political participation, and air and water pollution. Changes in the MPI demonstrate progress in each domain over time, but high rates persist in important areas: the majority of households in India use indoor biomass fuel and have unimproved sanitation, and over one-third of households with a child under the age of 3 years have undernourished children. There are large, but narrowing, gender gaps in education indicators, but no measurable change in women's participation in governance or the labor force. Less than 25% of workers have job security and fewer than 15% have any social security benefit. Alarming rates of air pollution are observed, with particulate matter concentrations persistently above the critical level at over 50% of monitoring stations. This assessment indicates that air pollution (indoor and outdoor), child undernutrition, unimproved sanitation, employment conditions, and gender inequality are priority areas for public policy related to SDH in India.

The Gender Pay Gap Beyond Human Capital: Heterogeneity in Noncognitive Skills and in Labor Market Tastes

ERIC Educational Resources Information Center

Grove, Wayne A.; Hussey, Andrew; Jetter, Michael

2011-01-01

Focused on human capital, economists typically explain about half of the gender earnings gap. For a national sample of MBAs, we account for 82 percent of the gap by incorporating noncognitive skills (for example, confidence and assertiveness) and preferences regarding family, career, and jobs. Those two sources of gender heterogeneity account for…

Gender Gap Trends on Mathematics Exams Position Girls and Young Women for STEM Careers

ERIC Educational Resources Information Center

Beekman, John A.; Ober, David

2015-01-01

Nine years of results on 4.2 million of Indiana's Indiana Statewide Testing for Educational Progress (ISTEP) mathematics (math) exams (grades 3-10) taken after the implementation of No Child Left Behind have been used to determine gender gaps and their associated trends. Sociocultural factors were investigated by comparing math gender gaps and gap…

The Gender Gap in Student Engagement: The Role of Teachers' Autonomy Support, Structure, and Involvement

ERIC Educational Resources Information Center

Lietaert, Sofie; Roorda, Debora; Laevers, Ferre; Verschueren, Karine; De Fraine, Bieke

2015-01-01

Background: The gender gap in education in favour of girls is a widely known phenomenon. Boys generally have higher dropout rates, obtain lower grades, and show lower engagement. Insight into factors related to these academic outcomes could help to address the gender gap. Aims: This study investigated, for Dutch language classes, (1) how boys and…

Gender Gap or Program Gap? Students' Negotiations of Study Practice in a Course in Electromagnetism

ERIC Educational Resources Information Center

Andersson, Staffan; Johansson, Anders

2016-01-01

This study of achievement differences, as reflected by course grades, on a third-semester electromagnetism course at a Swedish research university was motivated by instructor concerns about gender inequalities. Quantitative analysis showed a gender gap in course grades between female and male students for the period of fall 2007 to spring 2013.…

The Widening Gender Gap and Its Influence on Contemporary Postsecondary Campuses: Perceptions of Senior Student Affairs Officers

ERIC Educational Resources Information Center

Schellpfeffer, Shane E.

2012-01-01

Throughout the past 30 years, a gender gap in postsecondary education in the United States has steadily widened. The widening postsecondary gender gap, described as the difference between the number of males and females in both enrollment and degree attainment in postsecondary education, has recently garnered significant attention. The purpose of…

Are Boys Left Behind? The Evolution of the Gender Achievement Gap in Beijing's Middle Schools

ERIC Educational Resources Information Center

Lai, Fang

2010-01-01

Using one cohort of 7235 middle school students in Beijing, China, we examined the evolution of the gender achievement gap in middle school. Our study found a more significant female dominance than in U.S. studies: even though boys gradually caught up during middle school, especially in Math and Science, and the gender achievement gap decreased…

The effect of the Alabama Mathematics, Science, and Technology Initiative (AMSTI) on middle school students' scores in mathematics and science

NASA Astrophysics Data System (ADS)

Ramey, Toni Boyd

The purpose of this study was to determine whether the application of the Alabama Mathematics, Science, and Technology Initiative (AMSTI) program in middle schools reduced the gaps found between students' CRT scores; specifically, did the gaps found in the CRT scores within the respective subgroups race, gender, SES, and special/regular education narrow? The subject areas considered by this study were mathematics and science. Student-level data were collected and examined for longitudinal changes over a three year period in which the AMSTI program was implemented at two participating public middle schools. The dependent variables used were mathematics and science CRT scores of 6th through 8th grade students. Three repeated measures MANCOVAs and one MANOVA were conducted in order to examine possible longitudinal changes in the mathematics and science scores of the student population as well as for changes in the gaps between the demographic groups of students within the subgroups. Significant decreases were found in the differences between the respective subgroups in the variables of SES and special education. The reductions were attributed to both mathematics and science. A significant reduction in the gap found between races was found, but could not be attributed to either mathematics or science. Gender was the only subgroup in which no significant change was found. Additionally, a questionnaire was administered to teachers in four public middle schools in which AMSTI had been implemented. ANOVAs were used to examine the responses to determine how teacher training in AMSTI materials and techniques affected reported teacher attitude and frequency of usage of inquiry-based lessons. When the responses of teachers with less than one year of AMSTI training were compared to those teachers with more than one year of training, no significant change in teachers' reported attitudes toward inquiry lessons or the frequency of usage of inquiry lessons was found.

"Prince Charming Syndrome?" Gender gap in preferences for defined contribution pensions in Japan.

PubMed

Watanabe, Satoshi P

2017-01-01

Using survey data collected by the Japan Institute of Life Insurance in 2002, this study finds that a significant gender gap existed in defined contribution (DC) pension knowledge among workers employed at small- to medium-sized private firms in Japan. Even with similar DC knowledge, however, men and women reveal different preferences for DC pensions, indicating that their perceptional responses may widely differ from actual behaviors. Apart from the knowledge gap, the result shows evidence of the Prince Charming Syndrome among female employees as a significant source of the gender gap in DC participation rates. Among corporate pension-covered employees, the gender difference in the efficacy of DC portability is a more significant gap-generating factor. DC tax advantage is particularly favored by pension-covered female employees over male counterparts, reducing the DC preference gap. No similar evidence is found for employees with no corporate pension coverage.

Examining gender differences on FCI performance in algebra and calculus based physics courses

NASA Astrophysics Data System (ADS)

Kreutzer, Kimberley; Boudreaux, Andrew

2009-05-01

The Force Concept Inventory (FCI) has been widely used to asses student understanding of Newtonian principles. Studies have shown a marked difference in the performance of men and women on both pre- and post-tests [1,2] and also indicate that experiential based instruction may lead to a reduction in this gender gap [1,3]. This poster presents FCI data collected at Western Washington University. Initial analysis of gender differences are consistent with those reported nationally. We also discuss factors that may contribute to the differences in performance and propose instructional strategies that are designed to address the gender gap. [4pt] [1] M. Lorenzo, et. al., ``Reducing the gender gap in the physics classroom,'' AJP 74(2), 118-122 (2006) [0pt] [2] J. Docktor and K. Heller, ``Gender Differences in Both Force Concept Inventory and Introductory Physics Performance,'' Proceedings at the 2008 PERC [0pt] [3] S. Pollack, et. al., ``Reducing the gender gap in the physics classroom: How sufficient is interactive engagement?'' PRST-PER 3 (2007)

Inter-band optoelectronic properties in quantum dot structure of low band gap III-V semiconductors

NASA Astrophysics Data System (ADS)

Dey, Anup; Maiti, Biswajit; Chanda Sarkar, Debasree

2014-04-01

A generalized theory is developed to study inter-band optical absorption coefficient (IOAC) and material gain (MG) in quantum dot structures of narrow gap III-V compound semiconductor considering the wave-vector (k→) dependence of the optical transition matrix element. The band structures of these low band gap semiconducting materials with sufficiently separated split-off valance band are frequently described by the three energy band model of Kane. This has been adopted for analysis of the IOAC and MG taking InAs, InSb, Hg1-xCdxTe, and In1-xGaxAsyP1-y lattice matched to InP, as example of III-V compound semiconductors, having varied split-off energy band compared to their bulk band gap energy. It has been found that magnitude of the IOAC for quantum dots increases with increasing incident photon energy and the lines of absorption are more closely spaced in the three band model of Kane than those with parabolic energy band approximations reflecting the direct the influence of energy band parameters. The results show a significant deviation to the MG spectrum of narrow-gap materials having band nonparabolicity compared to the parabolic band model approximations. The results reflect the important role of valence band split-off energies in these narrow gap semiconductors.

Gender Wage Gaps by College Major in Taiwan: Empirical Evidence from the 1997-2003 Manpower Utilization Survey

ERIC Educational Resources Information Center

Lin, Eric S.

2010-01-01

In this article, we examine the effect of incorporating the fields of study on the explained and unexplained components of the standard Oaxaca decomposition for the gender wage gaps in Taiwan using 1997-2003 Manpower Utilization Survey data. Using several existing and lately developed measures, we inspect the gender wage gap by college major to…

The Trouble with Boys: Social Influences and the Gender Gap in Disruptive Behavior. NBER Working Paper No. 17541

ERIC Educational Resources Information Center

Bertrand, Marianne; Pan, Jessica

2011-01-01

This paper explores the importance of the home and school environments in explaining the gender gap in disruptive behavior. We document large differences in the gender gap across key features of the home environment--boys do especially poorly in broken families. In contrast, we find little impact of the early school environment on non-cognitive…

Decomposing the Gender Gap in Cognitive Skills in a Poor Rural Economy.

ERIC Educational Resources Information Center

Alderman, Harold; And Others

1996-01-01

Data from Pakistani cohorts, ages 20-24 and 30-44, show that local school availability accounts for one-third of the gender gap in cognitive achievement and two-fifths of the gender gap in numeracy. Most schools in rural Pakistan are single sex and in some areas only boys' schools are available. In the schools available to them, girls do not…

Gender gaps and gendered action in a first-year physics laboratory

NASA Astrophysics Data System (ADS)

Day, James; Stang, Jared B.; Holmes, N. G.; Kumar, Dhaneesh; Bonn, D. A.

2016-12-01

[This paper is part of the Focused Collection on Gender in Physics.] It is established that male students outperform female students on almost all commonly used physics concept inventories. However, there is significant variation in the factors that contribute to the gap, as well as the direction in which they influence it. It is presently unknown if such a gender gap exists on the relatively new Concise Data Processing Assessment (CDPA) and, therefore, whether gendered actions in the teaching lab might influence—or be influenced by—the gender gap. To begin to get an estimates of the gap, its predictors, and its correlates, we have measured performance on the CDPA at the pretest and post-test level. We have also made observations of how students in mixed-gender partnerships divide their time in the lab. We find a gender gap on the CDPA that persists from pre- to post-test and that is as big as, if not bigger than, similar reported gaps. We also observe compelling differences in how students divide their time in the lab. In mixed-gender pairs, male students tend to monopolize the computer, female and male students tend to share the equipment equally, and female students tend to spend more time on other activities that are not the equipment or computer, such as writing or speaking to peers. We also find no correlation between computer use, when students are presumably working with their data, and performance on the CDPA post-test. In parallel to our analysis, we scrutinize some of the more commonly used approaches to similar data. We argue in favor of more explicitly checking the assumptions associated with the statistical methods that are used and improved reporting and contextualization of effect sizes. Ultimately, we claim no evidence that female students are less capable of learning than their male peers, and we suggest caution when using gain measures to draw conclusions about differences in science classroom performance across gender.

Gender Salary Differences in Economics Departments in Japan

ERIC Educational Resources Information Center

Takahashi, Ana Maria; Takahashi, Shingo

2011-01-01

By using unique survey data, we conduct a detailed study of the gender salary gap within economics departments in Japan. Despite the presence of rigid pay scales emphasizing age and experience, there is a 7% gender salary gap after controlling for rank and detailed personal, job, institutional and human capital characteristics. This gender salary…

The Effect of Gender on Students' Sustainability Consciousness: A Nationwide Swedish Study

ERIC Educational Resources Information Center

Olsson, Daniel; Gericke, Niklas

2017-01-01

This study extends previous environmental education research on gender differences by investigating the gender gap between boys' and girls' sustainability consciousness. The issue of whether the gender gap in environmental education can be identified also in sustainability education is addressed. It has been suggested that Education for…

A Quasi-Classical Model of the Hubbard Gap in Lightly Compensated Semiconductors

DOE Office of Scientific and Technical Information (OSTI.GOV)

Poklonski, N. A.; Vyrko, S. A.; Kovalev, A. I.

2016-03-15

A quasi-classical method for calculating the narrowing of the Hubbard gap between the A{sup 0} and A{sup +} acceptor bands in a hole semiconductor or the D{sup 0} and D{sup –} donor bands in an electron semiconductor is suggested. This narrowing gives rise to the phenomenon of a semiconductor transition from the insulator to metal state with an increase in doping level. The major (doping) impurity can be in one of three charge states (–1, 0, or +1), while the compensating impurity can be in states (+1) or (–1). The impurity distribution over the crystal is assumed to be randommore » and the width of Hubbard bands (levels), to be much smaller than the gap between them. It is shown that narrowing of the Hubbard gap is due to the formation of electrically neutral acceptor (donor) states of the quasicontinuous band of allowed energies for holes (electrons) from excited states. This quasicontinuous band merges with the top of the valence band (v band) for acceptors or with the bottom of the conduction band (c band) for donors. In other words, the top of the v band for a p-type semiconductor or the bottom of the c band for an n-type semiconductor is shifted into the band gap. The value of this shift is determined by the maximum radius of the Bohr orbit of the excited state of an electrically neutral major impurity atom, which is no larger than half the average distance between nearest impurity atoms. As a result of the increasing dopant concentration, the both Hubbard energy levels become shallower and the gap between them narrows. Analytical formulas are derived to describe the thermally activated hopping transition of holes (electrons) between Hubbard bands. The calculated gap narrowing with increasing doping level, which manifests itself in a reduction in the activation energy ε{sub 2} is consistent with available experimental data for lightly compensated p-Si crystals doped with boron and n-Ge crystals doped with antimony.« less

Improving science inquiry with elementary students of diverse backgrounds

NASA Astrophysics Data System (ADS)

Cuevas, Peggy; Lee, Okhee; Hart, Juliet; Deaktor, Rachael

2005-03-01

This study examined the impact of an inquiry-based instructional intervention on (a) children's ability to conduct science inquiry overall and to use specific skills in inquiry, and (b) narrowing the gaps in children's ability among demographic subgroups of students. The intervention consisted of instructional units, teacher workshops, and classroom practices. The study involved 25 third- and fourth-grade students from six elementary schools representing diverse linguistic and cultural groups. Quantitative results demonstrated that the intervention enhanced the inquiry ability of all students regardless of grade, achievement, gender, ethnicity, socioeconomic status (SES), home language, and English proficiency. Particularly, low-achieving, low-SES, and English for Speakers of Other Languages (ESOL) exited students made impressive gains. The study adds to the existing literature on designing learning environments that foster science inquiry of all elementary students.

Narrowing the Retention Gap of High School Females in an Integrated STEM Program

NASA Astrophysics Data System (ADS)

Seigworth, Clifton F.

This study examined the differences in the overall sense of belonging of female high school students in an integrated STEM program in comparison to gender, ethnicity, and socio-economic status. The researcher surveyed female and male students in grades 8 through 12 to determine if there were differences in attitudes toward STEM. Additionally, the researcher assessed the STEM teachers to determine if a relationship existed between the teachers' years of experience and level of education to their self-efficacy and attitudes pertaining to STEM. Lastly, the administrators and counselors of both the middle and high schools were surveyed using a written evaluation to understand and gain their perspective of an integrated STEM program with regard to increasing female participation in STEM-related courses.

The High School Environment and the Gender Gap in Science and Engineering

PubMed Central

Legewie, Joscha; DiPrete, Thomas A.

2016-01-01

Despite the striking reversal of the gender gap in education, women pursue science, technology, engineering, and mathematics (STEM) degrees at much lower rates than those of their male peers. This study extends existing explanations for these gender differences and examines the role of the high school context for plans to major in STEM fields. Building on recent gender theories, we argue that widely shared and hegemonic gender beliefs manifest differently across schools so that the gender-specific formation of study plans is shaped by the local environment of high schools. Using the National Education Longitudinal Study, we first show large variations between high schools in the ability to attract students to STEM fields conditional on a large set of pre–high school measures. Schools that are successful in attracting students to these fields reduce the gender gap by 25 percent or more. As a first step toward understanding what matters about schools, we then estimate the effect of two concrete high school characteristics on plans to major in STEM fields in college—a high school's curriculum in STEM and gender segregation of extracurricular activities. These factors have a substantial effect on the gender gap in plans to major in STEM: a finding that is reaffirmed in a number of sensitivity analyses. Our focus on the high school context opens concrete avenues for policy intervention and is of central theoretical importance to understand the gender gap in orientations toward STEM fields. PMID:27857451

The High School Environment and the Gender Gap in Science and Engineering.

PubMed

Legewie, Joscha; DiPrete, Thomas A

2014-10-01

Despite the striking reversal of the gender gap in education, women pursue science, technology, engineering, and mathematics (STEM) degrees at much lower rates than those of their male peers. This study extends existing explanations for these gender differences and examines the role of the high school context for plans to major in STEM fields. Building on recent gender theories, we argue that widely shared and hegemonic gender beliefs manifest differently across schools so that the gender-specific formation of study plans is shaped by the local environment of high schools. Using the National Education Longitudinal Study, we first show large variations between high schools in the ability to attract students to STEM fields conditional on a large set of pre-high school measures. Schools that are successful in attracting students to these fields reduce the gender gap by 25 percent or more. As a first step toward understanding what matters about schools, we then estimate the effect of two concrete high school characteristics on plans to major in STEM fields in college-a high school's curriculum in STEM and gender segregation of extracurricular activities. These factors have a substantial effect on the gender gap in plans to major in STEM: a finding that is reaffirmed in a number of sensitivity analyses. Our focus on the high school context opens concrete avenues for policy intervention and is of central theoretical importance to understand the gender gap in orientations toward STEM fields.

Gender gap or program gap? Students' negotiations of study practice in a course in electromagnetism

NASA Astrophysics Data System (ADS)

Andersson, Staffan; Johansson, Anders

2016-12-01

[This paper is part of the Focused Collection on Gender in Physics.] This study of achievement differences, as reflected by course grades, on a third-semester electromagnetism course at a Swedish research university was motivated by instructor concerns about gender inequalities. Quantitative analysis showed a gender gap in course grades between female and male students for the period of fall 2007 to spring 2013. Dynamics behind this gap were explored through interpretative discourse analysis on interviews of 21 students who had recently passed the course. A recurring pattern was identified in the interviews. Students described studying electromagnetism as either studying to pass or studying to learn. Their choice of practice was influenced by the significance recognized in the course, which primarily was discussed in relation to program affiliation. Students stressed that perceived differences, in their study context, were larger between students affiliated with different programs than between male and female students on the same program. This was supported by quantitative analysis of course grades in relation to study programs, where the grade difference between female and male students on the same program in most cases were not statistically significant. The gender gap in grades for the whole course was related to different achievements on different programs. Programs further from the discipline of physics had lower mean grades and also enrolled a larger fraction of female students. Society-wide gender differences in interest and study choice are reflected in the grades on this single course. These results displace the achievement gap from the level of individuals to that of programs, and the gender gap from a difference in achievement to a difference in study choice. We discuss the implications of this shift of perspective in relation to gender differences for both research and teaching.

Mind the gap: gender differences in child special health care needs.

PubMed

Leiter, Valerie; Rieker, Patricia P

2012-07-01

The gendered nature of special health care needs in childhood is an important yet understudied area. Although gendered differences in the prevalence of special health care needs have been documented, there is less knowledge about the factors which contribute to those differences. Two research questions guide this inquiry. First, is the gender gap consistent across child special health care need indicators? Second, to what extent is the gender gap in special health care needs driven by behavioral conditions? We use multiple indicators from the U.S. National Survey of Children's Health to expand our understanding about the dynamic relationship between gender and childhood health. There are clear gender differences in the prevalence of special health care needs. Boys are more likely than girls to have special health care needs overall and on the five separate components examined (medication, more care than typical, limitations, special therapies, and educational or behavioral problem). This gender gap is dynamic and varies by indicator; while behavioral conditions play a role, it remains even after controlling for behavioral conditions. The reasons for the gender differences appear to be both biological and social but much remains unknown about this pattern.

Why Do Boys and Girls Perform Differently on PISA Reading in Finland? The Effects of Reading Fluency, Achievement Behaviour, Leisure Reading and Homework Activity

ERIC Educational Resources Information Center

Torppa, Minna; Eklund, Kenneth; Sulkunen, Sari; Niemi, Pekka; Ahonen, Timo

2018-01-01

The present study examined gender gap in Program for International Student Assessment (PISA) Reading and mediators of the gender gap in a Finnish sample (n = 1,309). We examined whether the gender gap in PISA Reading performance can be understood via the effects of reading fluency, achievement behaviour (mastery orientation and task-avoidant…

Are Two-Year Colleges the Key to Expanding the Scientific Labor Force? Unpacking Gender and Racial-Ethnic Gaps in Undergraduate STEM Degrees

ERIC Educational Resources Information Center

Perez-Felkner, Lara; Thomas, Kirby; Hopkins, Jordan; Nix, Samantha

2015-01-01

Given the explosion of theoretical and empirical interest in the STEM gender gap in recent years, almost exclusively focused on four-year colleges, this paper primarily investigates the following question: How does the nature of the gender gap differ among two- and four-year college students, if at all? This study seeks to answer the following…

Exploring racial differences in the obesity gender gap.

PubMed

Seamans, Marissa J; Robinson, Whitney R; Thorpe, Roland J; Cole, Stephen R; LaVeist, Thomas A

2015-06-01

To investigate whether the gender gap in obesity prevalence is greater among U.S. blacks than whites in a study designed to account for racial differences in socioeconomic and environmental conditions. We estimated age-adjusted, race-stratified gender gaps in obesity (% female obese - % male obese, defined as body mass index ≥30 kg/m(2)) in the National Health Interview Survey 2003 and the Exploring Health Disparities in Integrated Communities-Southwest Baltimore 2003 study (EHDIC-SWB). EHDIC-SWB is a population-based survey of 1381 adults living in two urban, low-income, racially integrated census tracts with no race difference in income. In the National Health Interview Survey, the obesity gender gap was larger in blacks than whites as follows: 7.7 percentage points (ppts; 95% confidence interval (CI): 3.4-11.9) in blacks versus -1.5 ppts (95% CI: -2.8 to -0.2) in whites. In EHDIC-SWB, the gender gap was similarly large for blacks and whites as follows: 15.3 ppts (95% CI: 8.6-22.0) in blacks versus 14.0 ppts (95% CI: 7.1-20.9) in whites. In a racially integrated, low-income urban community, gender gaps in obesity prevalence were similar for blacks and whites. Copyright © 2015 Elsevier Inc. All rights reserved.

Stagnation only on the surface? The implications of skill and family responsibilities for the gender wage gap in Sweden, 1974-2010.

PubMed

Boye, Katarina; Halldén, Karin; Magnusson, Charlotta

2017-12-01

The wage differential between women and men persists in advanced economies despite the inflow of women into qualified occupations in recent years. Using five waves of the Swedish Level-of-Living Survey (LNU), this paper explores the gender wage gap in Sweden during the 1974-2010 period overall and by skill level. The empirical analyses showed that the general gender wage gap has been nearly unchanged for the past 30 years. However, the gender difference in wage in less qualified occupations fell considerably, whereas the gender pay gap remained stable for men and women in qualified occupations. The larger significance of family responsibilities for wages in qualified occupations is one likely explanation for this result. © London School of Economics and Political Science 2017.

Facile doping of anionic narrow-band-gap conjugated polyelectrolytes during dialysis.

PubMed

Mai, Cheng-Kang; Zhou, Huiqiong; Zhang, Yuan; Henson, Zachary B; Nguyen, Thuc-Quyen; Heeger, Alan J; Bazan, Guillermo C

2013-12-02

PCPDTBTSO3 K, an anionic, narrow-band-gap conjugated polyelectrolyte, was found to be doped after dialysis. The proposed doping mechanism involves protonation of the polymer backbone, followed by electron transfer from a neutral chain, to generate radical cations, which are stabilized by the pendant sulfonate anions. Formation of polarons is supported by spectroscopy and electrical-conductivity measurements. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Behind the Pay Gap

ERIC Educational Resources Information Center

Dey, Judy Goldberg; Hill, Catherine

2007-01-01

Women have made remarkable gains in education during the past three decades, yet these achievements have resulted in only modest improvements in pay equity. The gender pay gap has become a fixture of the U.S. workplace and is so ubiquitous that many simply view it as normal. "Behind the Pay Gap" examines the gender pay gap for college graduates.…

The strain induced band gap modulation from narrow gap semiconductor to half-metal on Ti{sub 2}CrGe: A first principles study

DOE Office of Scientific and Technical Information (OSTI.GOV)

Li, Jia, E-mail: jiali@hebut.edu.cn; Research Institute for Energy Equipment Materials, Hebei University of Technology, Tianjin 300401; Zhang, Zhidong

The Heusler alloy Ti{sub 2}CrGe is a stable L2{sub 1} phase with antiferromagnetic ordering. With band-gap energy (∼ 0.18 eV) obtained from a first-principles calculation, it belongs to the group of narrow band gap semiconductor. The band-gap energy decreases with increasing lattice compression and disappears until a strain of −5%; moreover, gap contraction only occurs in the spin-down states, leading to half-metallic character at the −5% strain. The Ti{sub 1}, Ti{sub 2}, and Cr moments all exhibit linear changes in behavior within strains of −5%– +5%. Nevertheless, the total zero moment is robust for these strains. The imaginary part ofmore » the dielectric function for both up and down spin states shows a clear onset energy, indicating a corresponding electronic gap for the two spin channels.« less

Evaluating and Treating Transverse Myelitis

MedlinePlus

... myelopathy. The doctor may note the person’s age, gender, and ethnicity. Weak evidence shows age and gender may help to narrow down the cause of ... is not enough evidence to show if age, gender, or ethnicity can point to a definite cause. ...

Louisiana's Achievements for Gender Equity in Vocational Education. Executive Summary 1996-97.

ERIC Educational Resources Information Center

Hargroder, Margaret

Workplace and educational changes related to gender in Louisiana in 1996-97 suggest some progress but a continued need to reduce wide gender gaps in some occupational areas. Workplace data show a closing gender gap, but changes are occurring at different rates for different areas. Women's share of the total labor force continues to rise; wage…

The gender gap reloaded: are school characteristics linked to labor market performance?

PubMed

Konstantopoulos, Spyros; Constant, Amelie

2008-06-01

This study examines the wage gender gap of young adults in the 1970s, 1980s, and 2000 in the US. Using quantile regression we estimate the gender gap across the entire wage distribution. We also study the importance of high school characteristics in predicting future labor market performance. We conduct analyses for three major racial/ethnic groups in the US: Whites, Blacks, and Hispanics, employing data from two rich longitudinal studies: NLS and NELS. Our results indicate that while some school characteristics are positive and significant predictors of future wages for Whites, they are less so for the two minority groups. We find significant wage gender disparities favoring men across all three surveys in the 1970s, 1980s, and 2000. The wage gender gap is more pronounced in higher paid jobs (90th quantile) for all groups, indicating the presence of a persistent and alarming "glass ceiling."

Women in the radiology profession: data from a 1995 national survey.

PubMed

Deitch, C H; Sunshine, J H; Chan, W C; Shaffer, K A

1998-02-01

This report provides an in-depth picture of similarities and differences in the professional and practice characteristics of women and men who are radiologists in the United States, with specific attention to whether gender differences are less pronounced among younger radiologists. Data were taken from a national stratified random sample survey of radiologists. The response rate was 75%. The 1731 men and 294 women responding included diagnostic radiologists, radiation oncologists, and radiology-related nuclear medicine specialists. Seven percent of respondents who completed their radiology residency before 1970 were women, compared with 9% in 1970-1979, 19% in 1980-1989, and 27% in 1990-1995. Gender differences were smaller among posttraining radiologists younger than 40 years old than among those 40 years old or older for the following questions: when the respondent decided to specialize in radiology, whether the respondent is a subspecialist within diagnostic radiology, whether the respondent's practice is primarily academic, whether the practice is privately owned, and whether the respondent is a practice owner (partner, shareholder). Women who were residents and fellows more frequently indicated problems with unwanted sexual attention occurring in the past 2 years than did women who were not in training positions. However, posttraining women were more likely to have encountered discrimination in salary, hiring, or promotion at some time in their careers. Women's professional roles in radiology are changing slowly. A narrowing gender gap among younger radiologists on some professional and practice characteristics may indicate a further diminishing of gender differences in radiology in the future. It may also reflect greater gender equality at earlier rather than later stages of one's career.

Diluted magnetic semiconductors with narrow band gaps

NASA Astrophysics Data System (ADS)

Gu, Bo; Maekawa, Sadamichi

2016-10-01

We propose a method to realize diluted magnetic semiconductors (DMSs) with p - and n -type carriers by choosing host semiconductors with a narrow band gap. By employing a combination of the density function theory and quantum Monte Carlo simulation, we demonstrate such semiconductors using Mn-doped BaZn2As2 , which has a band gap of 0.2 eV. In addition, we found a nontoxic DMS Mn-doped BaZn2Sb2 , of which the Curie temperature Tc is predicted to be higher than that of Mn-doped BaZn2As2 , the Tc of which was up to 230 K in a recent experiment.

Snips and Snails and Puppy Dogs' Tails: Genderism and Mathematics Education

ERIC Educational Resources Information Center

Esmonde, Indigo

2011-01-01

This paper contrasts public discussions about the educational troubles of boys and girls to consider what a gender equitable mathematics education might look like. Both public discussions and mathematics education research typically do not carefully define or theorize gender, tend to essentialize gender, and have narrow or unclear definitions of…

Impurity-induced photoconductivity of narrow-gap Cadmium–Mercury–Telluride structures

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kozlov, D. V., E-mail: dvkoz@impras.ru; Rumyantsev, V. V.; Morozov, S. V.

2015-12-15

The photoconductivity (PC) spectra of CdHgTe (MCT) solid solutions with a Cd fraction of 17 and 19% are measured. A simple model for calculating the states of doubly charged acceptors in MCT solid solutions, which makes it possible to describe satisfactorily the observed photoconductivity spectra, is proposed. The found lines in the photoconductivity spectra of narrow-gap MCT structures are associated with transitions between the states of both charged and neutral acceptor centers.

Hour-glass ceilings: Work-hour thresholds, gendered health inequities.

PubMed

Dinh, Huong; Strazdins, Lyndall; Welsh, Jennifer

2017-03-01

Long workhours erode health, which the setting of maximum weekly hours aims to avert. This 48-h limit, and the evidence base to support it, has evolved from a workforce that was largely male, whose time in the labour force was enabled by women's domestic work and care giving. The gender composition of the workforce has now changed, and many women (as well as some men) combine care-giving with paid work, a change viewed as fundamental for gender equality. However, it raises questions on the suitability of the work time limit and the extent it is protective of health. We estimate workhour-mental health thresholds, testing if they vary for men and women due to gendered workloads and constraints on and off the job. Using six waves of data from a nationally representative sample of Australian adults (24-65 years), surveyed in the Household Income Labour Dynamics of Australia Survey (N = 3828 men; 4062 women), our study uses a longitudinal, simultaneous equation approach to address endogeneity. Averaging over the sample, we find an overall threshold of 39 h per week beyond which mental health declines. Separate curves then estimate thresholds for men and women, by high or low care and domestic time constraints, using stratified and pooled samples. We find gendered workhour-health limits (43.5 for men, 38 for women) which widen further once differences in resources on and off the job are considered. Only when time is 'unencumbered' and similar time constraints and contexts are assumed, do gender gaps narrow and thresholds approximate the 48-h limit. Our study reveals limits to contemporary workhour regulation which may be systematically disadvantaging women's health. Copyright © 2017 Elsevier Ltd. All rights reserved.

Closing the Achievement Gap: Four States' Efforts

ERIC Educational Resources Information Center

Wixom, Micah Ann

2015-01-01

The achievement gap separating economically disadvantaged students from their more advantaged peers disproportionately affects students of color and has been the focus of discussion, research and controversy for more than 40 years. While the gap between black and white students narrowed considerably from the 1950s to the 1980s, that gap has…

The Vector Calculus Gap: Mathematics (Does Not Equal) Physics.

ERIC Educational Resources Information Center

Dray, Tevian; Manogue, Corinne A.

1999-01-01

Discusses some of the differences between the ways mathematicians and physicists view vector calculus and the gap between the way this material is traditionally taught by mathematicians and the way physicists use it. Suggests some ways to narrow the gap. (Author/ASK)

Gender disparities in high-quality dermatology research: a descriptive bibliometric study on scientific authorships.

PubMed

Bendels, Michael H K; Dietz, Michelle Cathrin; Brüggmann, Dörthe; Oremek, Gerhard Maximilian; Schöffel, Norman; Groneberg, David A

2018-04-13

The present study aims to elucidate the state of gender equality in high-quality dermatological research by analysing the representation of female authorships from January 2008 to May 2017. Retrospective, descriptive study. 113 189 male and female authorships from 23 373 research articles published in 23 dermatological Q1 journals were analysed with the aid of the Gendermetrics Platform. 43.0% of all authorships and 50.2% of the firstauthorships, 43.7% of the coauthorships and 33.1% of the last authorships are held by women. The corresponding female-to-male ORs are 1.41 (95% CI 1.37 to 1.45) for first authorships, 1.07 (95% CI 1.04 to 1.10) for coauthorships and 0.60 (95% CI 0.58 to 0.62) for last authorships. The annual growth rates are 1.74% overall and 1.45% for first authorships, 1.53% for coauthorships and 2.97% for last authorships. Women are slightly under-represented at prestigious authorships compared with men (Prestige Index=-0.11). The under-representation remains stable in highly competitive articles attracting the highest citation rates, namely, articles with many authors and articles that were published in highest-impact journals. Multiauthor articles with male key authors are only slightly more frequently cited than those with female key authors. Women publish slightly fewer papers compared with men (47.2% women hold 43.0% of the authorships). At the level of individual journals, there is a high degree of uniformity in gender-specific authorship odds. By contrast, distinct differences at country level were revealed. The prognosis for the next decades forecasts a consecutive harmonisation of authorship odds between the two genders. In high-quality dermatological research, the integration of female scholars is advanced as compared with other medical disciplines. A gender gap consists mainly in the form of a career dichotomy, with many female early career researchers and few women in academic leadership positions. However, this gender gap has been narrowed in the last decade and will likely be further reduced in the future. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

High-Voltage Breakdown Penalties for the Beam-Breakup Instability

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ekdahl, Carl August

2016-11-22

The strength of the dangerous beam breakup (BBU) instability in linear induction accelerators (LIAs) is determined by the transverse coupling impedance Z ⊥ of the induction cell cavity. For accelerating gap width w less than the beam pipe radius b, the transverse impedance is theoretically proportional to w/b, favoring narrow gaps to suppress BBU. On the other hand, cells with narrow gaps cannot support high accelerating gradients, because of electrical breakdown and shorting of the gap. Thus, there is an engineering trade-off between BBU growth and accelerating gradient, which must be considered for next generation LIAs now being designed. Inmore » this article this tradeoff is explored, using a simple pillbox cavity as an illustrative example. For this model, widening the gap to reduce the probability of breakdown increases BBU growth, unless higher magnetic focusing fields are used to further suppress the instability.« less

Narrow Band Gap Lead Sulfide Hole Transport Layers for Quantum Dot Photovoltaics.

PubMed

Zhang, Nanlin; Neo, Darren C J; Tazawa, Yujiro; Li, Xiuting; Assender, Hazel E; Compton, Richard G; Watt, Andrew A R

2016-08-24

The band structure of colloidal quantum dot (CQD) bilayer heterojunction solar cells is optimized using a combination of ligand modification and QD band gap control. Solar cells with power conversion efficiencies of up to 9.33 ± 0.50% are demonstrated by aligning the absorber and hole transport layers (HTL). Key to achieving high efficiencies is optimizing the relative position of both the valence band and Fermi energy at the CQD bilayer interface. By comparing different band gap CQDs with different ligands, we find that a smaller band gap CQD HTL in combination with a more p-type-inducing CQD ligand is found to enhance hole extraction and hence device performance. We postulate that the efficiency improvements observed are largely due to the synergistic effects of narrower band gap QDs, causing an upshift of valence band position due to 1,2-ethanedithiol (EDT) ligands and a lowering of the Fermi level due to oxidation.

The Effects of Teachers' Gender-Stereotypical Expectations on the Development of the Math Gender Gap

ERIC Educational Resources Information Center

Robinson, Joseph P.; Lubienski, Sarah T.; Copur, Yasemin

2011-01-01

Scholars have identified mathematics gender gaps favoring males as early as kindergarten or first grade, particularly at the top of the achievement distribution (Penner & Paret, 2008; Rathbun, West & Germino-Hausken, 2004; Robinson & Lubienski, 2011). These relatively small achievement disparities precede larger differences in…

Gender Gaps in High School Students' Homework Time

ERIC Educational Resources Information Center

Gershenson, Seth; Holt, Stephen B.

2015-01-01

Gender differences in human capital investments made outside of the traditional school day suggest that males and females consume, respond to, and form habits relating to education differently. We document robust, statistically significant one-hour weekly gender gaps in secondary students' non-school study time using time diary data from the…

Ethnicity and Gender Gaps in Early Childhood

ERIC Educational Resources Information Center

Hansen, Kirstine; Jones, Elizabeth M.

2011-01-01

Gender differences in academic performance and achievement have been of policy concern for decades--both interest in lower performance by girls in the areas of mathematics and science and, more recently, in boys' underperformance in most other academic areas. Much previous research has focused on gender gaps, while overlooking other factors that…

Gender, Experience, and Self-Efficacy in Introductory Physics

ERIC Educational Resources Information Center

Nissen, Jayson M.; Shemwell, Jonathan T.

2016-01-01

There is growing evidence of persistent gender achievement gaps in university physics instruction, not only for learning physics content, but also for developing productive attitudes and beliefs about learning physics. These gaps occur in both traditional and interactive-engagement (IE) styles of physics instruction. We investigated one gender gap…

The Wage Gap and Administrative Salaries Today.

ERIC Educational Resources Information Center

Beyer, Kirk D.

1992-01-01

Analysis of national data on college administrator salaries by gender, minority/nonminority status, years of service, and institution type found that wage gaps related to gender and minority status persisted in 1991-92 but that interaction of length of service with other study variables explained a significant amount of this gap. (MSE)

Women Academics and Research Productivity: An International Comparison

ERIC Educational Resources Information Center

Aiston, Sarah Jane; Jung, Jisun

2015-01-01

In the prestige economy of higher education, research productivity is highly prized. Previous research indicates, however, a gender gap with respect to research output. This gap is often explained by reference to familial status and responsibilities. In this article, we examine the research productivity gender gap from an international perspective…

Trends in Gender Segregation in the Choice of Science and Engineering Majors*

PubMed Central

Mann, Allison; DiPrete, Thomas A.

2013-01-01

Numerous theories have been put forward for the high and continuing levels of gender segregation in science, technology, engineering, and mathematics (STEM) fields, but research has not systematically examined the extent to which these theories for the gender gap are consistent with actual trends. Using both administrative data and four separate longitudinal studies sponsored by the U.S. Department of Education’s National Center for Education Statistics (NCES), we evaluate several prominent explanations for the persisting gender gap in STEM fields related to mathematics performance and background and general life goals, and find that none of them are empirically satisfactory. Instead, we suggest that the structure of majors and their linkages to professional training and careers may combine with gender differences in educational goals to influence the persisting gender gap in STEM fields. An analysis of gendered career aspirations, course-taking patterns, and pathways to medical and law school supports this explanation. PMID:24090849

(Never) Mind the Gap!: Gender Equity in Social Studies Research on Technology in the Twenty-First Century

ERIC Educational Resources Information Center

Crocco, Margaret S.; Cramer, Judith; Meier, Ellen B.

2008-01-01

Purpose: Focusing on gender as an aspect of diversity, the purpose of this paper is to review social studies research on technology, and suggest a new direction, with gender redefined from a gap to be eliminated to a difference to be explored. Design/methodology/approach: This paper is a literature review of research on gender, technology, and…

Gender Differences in Pay Expectations: The Roles of Job Intention and Self-View

ERIC Educational Resources Information Center

Hogue, Mary; Dubois, Cathy L. Z.; Fox-Cardamone, Lee

2010-01-01

Because pay expectations play a role in the persistent gender pay gap, we surveyed 435 undergraduate students to examine the impacts of gender, job intentions, and self-views on the pay expectations of pre-career women and men. Our findings showed a gender gap in which women expected to be paid less than men expected to be paid at the beginning…

The Gender Gap in Alcohol Consumption during Late Adolescence and Young Adulthood: Gendered Attitudes and Adult Roles

ERIC Educational Resources Information Center

Christie-Mizell, C. Andre; Peralta, Robert L.

2009-01-01

We utilize data from the National Longitudinal Survey of Youth young adult sample (N = 1,488) to investigate whether gender role attitudes and the occupation of and transition to three adult roles (i.e., employment, marriage, and parenthood) contribute to the maintenance of the gender gap in the frequency and quantity of alcohol use. Our results…

The Development of Gender Achievement Gaps in Mathematics and Reading during Elementary and Middle School: Examining Direct Cognitive Assessments and Teacher Ratings

ERIC Educational Resources Information Center

Robinson, Joseph Paul; Lubienski, Sarah Theule

2011-01-01

Using K-8 national longitudinal data, the authors investigate males' and females' achievement in math and reading, including when gender gaps first appear, whether the appearance of gaps depends on the metric used, and where on the achievement distribution gaps are most prevalent. Additionally, teachers' assessments of males and females are…

Inverse gender gap in Germany: social dominance orientation among men and women.

PubMed

Küpper, Beate; Zick, Andreas

2011-02-01

Across cultures studies show that men score higher on social dominance orientation than women. This gender gap is considered invariant, but conflicting explanations are discussed: Some authors refer to evolutionary psychology and perceive the gender gap to be driven by sociobiological factors. Other authors argue that social roles or gender-stereotypical self-construals encouraged by intergroup comparisons are responsible for attitudinal gender difference. In Study 1 we analyzed sex differences in social dominance orientation in three German probability surveys (each n > 2300). Unexpectedly, the analyses yielded an inverse gender gap with higher values for social dominance orientation in women than in men. Interactions with age, education, political conservatism, and perceived inequity indicated that the inverse gender gap can be mainly attributed to older, conservative, (and less educated) respondents, and those who feel they get their deserved share. In Study 2 we replicated the well-known gender gap with men scoring higher than women in social dominance orientation among German students. Results are interpreted on the basis of biocultural interaction, which integrates the sociobiological, social role, and self-construal perspectives. Our unusual findings seem to reflect a struggle for status by members of low-status groups who consider group-based hierarchy the most promising option to improve their status. While younger women take advantage of a relational, feminine self-construal that leads to lower social dominance orientation in young women than in young men, older women are supposed to profit from an agentic self-construal that results in stronger social dominance orientation values. Specific characteristics of the culture in Germany seem to promote this strategy. Here, we discuss the female ideal of the national socialist period and the agentic female social role in the post-war era necessitated by the absence of men.

Gender Difference in Health-Care Expenditure: Evidence from India Human Development Survey.

PubMed

Saikia, Nandita; Moradhvaj; Bora, Jayanta Kumar

2016-01-01

While the gender disparity in health and mortality in various stages of life in India is well documented, there is limited evidence on female disadvantage in health-care expenditure (HCE). Examine the gender difference in HCE in short-term and major morbidity in India, and understand the role of factors underlying the difference. Using two rounds of nationally representative panel data-the India Human Development Survey (IHDS) 2004-2005 and 2011-2012 (IHDS I & II)-we calculate morbidity prevalence rate and mean HCE by gender, and examine the adjusted effect of gender on major morbidity-related HCE by using a two-part regression model. Further, we performed Oaxaca-Blinder decomposition of the gender gap in HCE in major morbidity to understand the contribution of demographic and socio-economic factors. Health-care expenditure on females was systematically lower than on males across all demographic and socio-economic groups. Multivariate analysis confirms that female HCE is significantly lower than male HCE even after controlling demographic and socio-economic factors (β = -0.148, p = 0.000, CI:-0.206-0.091). For both short-term and major morbidity, a female disadvantage on HCE increased from IHDS I to IHDS II. For instance, the male-female gap in major morbidity related expenditure increased from INR 1298 to INR 4172. A decomposition analysis of gender gap in HCE demonstrates that about 48% of the gap is attributable to differences in demographic and socio-economic factors (endowment effect), whereas 50% of the gap is due to the differential effect of the determinants (coefficient effect). Indians spend less on female health care than on male health care. Most of the gender gap in HCE is not due to differential distribution of factors affecting HCE.

Recession, employment and self-rated health: a study on the gender gap.

PubMed

Aguilar-Palacio, I; Carrera-Lasfuentes, P; Sánchez-Recio, R; Alonso, J P; Rabanaque, M J

2018-01-01

Employment status and economic recession have been associated with negative effects on self-rated health, and this effect differs by gender. We analysed the effects of the Spanish economic recession in terms of self-rated health, its differential effect among genders and its influence on gender gap. Repeated cross-sectional study using Spanish health surveys (2001-2014). Logistic regression models were conducted to explore the association between self-rated health and employment status and its evolution over time and gender. To test the impact of the economic recession, pooled data regression models were conducted. In this study, we considered 104,577 subjects. During the last 15 years, women have entered the labour market, leading to wide changes in the Spanish traditional family roles. Instead of an increasing proportion of women workers, gender employment differences persist. Therefore, in 2014, the prevalence of workers was 55.77% in men, whereas in women, it was 44.01%. Self-rated health trends during the economic recession differ by gender, with women improving slightly their self-rated health from a low self-rated health prevalence of 38.76% in 2001 to 33.78% in 2014. On the contrary, men seem more vulnerable to employment circumstances, which have led to substantial reduction in the gender gap. Although a gender gap persists, the change in socio-economic roles seems to increase women's self-rated health, reducing this gap. It is important to promote women's labour market inclusion, even in economic recession periods. Copyright © 2017 The Royal Society for Public Health. Published by Elsevier Ltd. All rights reserved.

Do women in Europe live longer and happier lives than men?

PubMed

Solé-Auró, Aïda; Jasilionis, Domantas; Li, Peng; Oksuzyan, Anna

2018-05-08

The article examines gender differences in happy life expectancy at age 50 (LE50) and computes the age-specific contributions of mortality and happiness effects to gender differences in happy LE50 in 16 European countries. Abridged life tables and happy LE50 were calculated using conventional life tables and Sullivan's method. Age-specific death rates were calculated from deaths and population exposures in the Human Mortality Database. Happiness prevalence was estimated using the 2010-11 Survey of Health, Ageing and Retirement in Europe. Happiness was defined using a single question about life satisfaction on a scale of 0-10. A decomposition algorithm was applied to estimate the exact contributions of the differences in mortality and happiness to the overall gender gap in happy LE50. Gender differences in happy LE50 favour women in all countries except Portugal (0.43 years in Italy and 3.55 years in Slovenia). Generally, the contribution of the gender gap in happiness prevalence is smaller than the one in mortality. The male advantage in the prevalence of happiness partially offsets the effects of the female advantage in mortality on the total gender gap in happy LE50. Gender differences in unhappy life years make up the greatest share of the gender gap in total LE50 in all countries except Denmark, Germany, Netherlands, Slovenia and Sweden. Countries with the largest gender gap in LE are not necessarily the countries with larger differences in happy LE50. The remaining years of life of women are expected to be spent not only in unhealthy but also in unhappy state.

What determines the income gap between French male and female GPs - the role of medical practices

PubMed Central

2012-01-01

Background In many OECD countries, the gender differences in physicians’ pay favour male doctors. Due to the feminisation of the doctor profession, it is essential to measure this income gap in the French context of Fee-for-service payment (FFS) and then to precisely identify its determinants. The objective of this study is to measure and analyse the 2008 income gap between males and females general practitioners (GPs). This paper focuses on the role of gender medical practices differentials among GPs working in private practice in the southwest region of France. Methods Using data from 339 private-practice GPs, we measured an average gender income gap of approximately 26% in favour of men. Using the decomposition method, we examined the factors that could explain gender disparities in income. Results The analysis showed that 73% of the income gap can be explained by the average differences in doctors’ characteristics; for example, 61% of the gender income gap is explained by the gender differences in workload, i.e., number of consultations and visits, which is on average significantly lower for female GPs than for male GPs. Furthermore, the decomposition method allowed us to highlight the differences in the marginal returns of doctors’ characteristics and variables contributing to income, such as GP workload; we found that female GPs have a higher marginal return in terms of earnings when performing an additional medical service. Conclusions The findings of this study help to understand the determinants of the income gap between male and female GPs. Even though workload is clearly an essential determinant of income, FFS does not reduce the gender income gap, and there is an imperfect relationship between the provision of medical services and income. In the context of feminisation, it appears that female GPs receive a lower income but attain higher marginal returns when performing an additional consultation. PMID:22998173

What determines the income gap between French male and female GPs - the role of medical practices.

PubMed

Dumontet, Magali; Le Vaillant, Marc; Franc, Carine

2012-09-21

In many OECD countries, the gender differences in physicians' pay favour male doctors. Due to the feminisation of the doctor profession, it is essential to measure this income gap in the French context of Fee-for-service payment (FFS) and then to precisely identify its determinants. The objective of this study is to measure and analyse the 2008 income gap between males and females general practitioners (GPs). This paper focuses on the role of gender medical practices differentials among GPs working in private practice in the southwest region of France. Using data from 339 private-practice GPs, we measured an average gender income gap of approximately 26% in favour of men. Using the decomposition method, we examined the factors that could explain gender disparities in income. The analysis showed that 73% of the income gap can be explained by the average differences in doctors' characteristics; for example, 61% of the gender income gap is explained by the gender differences in workload, i.e., number of consultations and visits, which is on average significantly lower for female GPs than for male GPs. Furthermore, the decomposition method allowed us to highlight the differences in the marginal returns of doctors' characteristics and variables contributing to income, such as GP workload; we found that female GPs have a higher marginal return in terms of earnings when performing an additional medical service. The findings of this study help to understand the determinants of the income gap between male and female GPs. Even though workload is clearly an essential determinant of income, FFS does not reduce the gender income gap, and there is an imperfect relationship between the provision of medical services and income. In the context of feminisation, it appears that female GPs receive a lower income but attain higher marginal returns when performing an additional consultation.

Pseudomorphic Narrow Gap Materials for High Performance Devices

DTIC Science & Technology

1993-04-14

research under this program is ito obtain hiigh quality pseudomorphic (strained) narrow gap materials for high performance device applicatjons During...1993 ELECTE """ ’I ~01lG:9395 APR21 W93 Dr. Max N. Yoder Scientific Officer, Code 114SS Office of Naval Research 800 N. Quincy Street Arlington, VA...Mr. V. Morano - w/cy each/ ...- Administrative Grants Officer Office of Naval Research . r. - Resident Representative, N6Z9g7 -- _ z 33 Third Avenue

Band gap narrowing in BaTiO{sub 3} nanoparticles facilitated by multiple mechanisms

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ramakanth, S.; James Raju, K. C., E-mail: kcjrsp@uohyd.ernet.in; School of Physics, University of Hyderabad, Hyderabad 500046

2014-05-07

In the present work, BaTiO{sub 3} nanoparticles of four different size ranges were prepared by sol-gel method. The optical band gap of these particles at some size ranges has come down to 2.53 eV from 3.2 eV, resulting in substantial increase in optical absorption by these ferroelectric nanoparticles making them potential candidates for light energy harvesting. XRD results show the presence of higher compressive strain in 23 nm and 54 nm size particles, they exhibit a higher band gap narrowing, whereas tensile strain is observed in 31 nm and 34 nm particles, and they do not show the marginal band gap narrowing. The 23 nm and 54 nmmore » particles also show a coupling of free carriers to phonons by increasing the intensity of LO phonon mode at 715 cm{sup −1}. The higher surface charge density is expected in case of enhanced surface optical Raman modes (638 cm{sup −1}) contained in 31 and 34 nm size particles. In addition to this, the red shift in an LO mode Raman spectral line at 305 cm{sup −1} with decrease in particle size depicts the presence of phonon confinement in it. The enhanced optical absorption in 23 nm and 54 nm size particles with a narrowed band gap of 3 eV and 2.53 eV is due to exchange correlation interactions between the carriers present in these particles. In 31 nm and 34 nm range particles, the absorption got bleached exhibiting increased band gaps of 3.08 eV and 3.2 eV, respectively. It is due to filling up of conduction band resulting from weakening of exchange correlation interactions between the charge carriers. Hence, it is concluded that the band gap narrowing in the nanoparticles of average size 23 nm/54 nm is a consequence of multiple effects like strain, electron-phonon interaction, and exchange correlation interactions between the carriers which is subdued in some other size ranges like 31 nm/34 nm.« less

Gender inequality and the gender gap in life expectancy in the European Union.

PubMed

Kolip, Petra; Lange, Cornelia

2018-05-14

The gender gap in life expectancy (GGLE) varies substantially in EU 28 Member States. This paper addresses the question of whether gender inequality affects the GGLE as well as life expectancy (LE) in both genders. We conducted an ecological study and used the gender inequality index (GII) developed by the United Nations as well as the gender difference in LE in 2015. We found a correlation between GGLE and GII (r2=0.180) and between GII and LE of 0.418 (women) and 0.430 (men). Gender equality policies are still necessary and will have an effect on women's as well as men's health.

Discrimination, Harassment, and Gendered Health Inequalities: Do Perceptions of Workplace Mistreatment Contribute to the Gender Gap in Self-reported Health?

PubMed

Harnois, Catherine E; Bastos, João L

2018-06-01

This study examines the extent to which discrimination and harassment contribute to gendered health disparities. Analyzing data from the 2006, 2010, and 2014 General Social Surveys ( N = 3,724), we ask the following: (1) To what extent are perceptions of workplace gender discrimination and sexual harassment associated with self-reported mental and physical health? (2) How do multiple forms of workplace mistreatment (e.g., racism, ageism, and sexism) combine to structure workers' self-assessed health? and (3) To what extent do perceptions of mistreatment contribute to the gender gap in self-assessed health? Multivariate analyses show that among women, but not men, perceptions of workplace gender discrimination are negatively associated with poor mental health, and perceptions of sexual harassment are associated with poor physical health. Among men and women, perceptions of multiple forms of mistreatment are associated with worse mental health. Gender discrimination partially explains the gender gap in self-reported mental health.

Does the Level of Occupational Aggregation Affect Estimates of the Gender Wage Gap?

ERIC Educational Resources Information Center

Kidd, Michael P.; Shannon, Michael

1996-01-01

Using data from the 1989 Canadian Labour-Market Activity Survey, when occupation is treated as a productivity-related characteristic, gender wage gap estimates are distorted. Using a larger number of occupations, the occupational aggregation by gender reflects barriers women face in attempting to enter male-dominated occupations. (SK)

3 CFR - Advancing Pay Equality in the Federal Government and Learning From Successful Practices

Code of Federal Regulations, 2014 CFR

2014-01-01

... agencies (agencies) affect the compensation of similarly situated men and women, and to promote gender pay... address any gender pay gap in the Federal workforce. This strategy shall include: (a) analysis of whether changes to the General Schedule classification system would assist in addressing any gender pay gap; (b...

Exploring the Gender Gap in the Conceptual Survey of Electricity and Magnetism

ERIC Educational Resources Information Center

Henderson, Rachel; Stewart, Gay; Stewart, John; Michaluk, Lynnette; Traxler, Adrienne

2017-01-01

The "gender gap" on various physics conceptual evaluations has been extensively studied. Men's average pretest scores on the Force Concept Inventory and Force and Motion Conceptual Evaluation are 13% higher than women's, and post-test scores are on average 12% higher than women's. This study analyzed the gender differences within the…

Gender Gaps in Achievement and Participation in Multiple Introductory Biology Classrooms

ERIC Educational Resources Information Center

Eddy, Sarah L.; Brownell, Sara E.; Wenderoth, Mary Pat

2014-01-01

Although gender gaps have been a major concern in male-dominated science, technology, engineering, and mathematics disciplines such as physics and engineering, the numerical dominance of female students in biology has supported the assumption that gender disparities do not exist at the undergraduate level in life sciences. Using data from 23 large…

The Decline of Private-Sector Unionism and the Gender Wage Gap.

ERIC Educational Resources Information Center

Even, William E.; Macpherson, David A.

1993-01-01

Between 1973 and 1988, private sector union membership fell by 9.5 percentage points more for men than women; the gender wage gap decreased by 0.09. Unionism fell more slowly for women. Greater decline in male unionism is responsible for one-seventh of the decline in the wage gap. (SK)

The Gender "Gap" in Attainment: The Scottish Policy Perspective

ERIC Educational Resources Information Center

Corry, Val

2017-01-01

The "gender gap" in attainment is an issue in Scotland but is also an international phenomenon. In Scotland, this gap continues to be apparent as girls outperform boys in national examinations. This raises challenges for those working in schools and for policymakers in responding to this phenomenon. This article focuses on appraising…

Salary Structure Effects and the Gender Pay Gap in Academia

ERIC Educational Resources Information Center

Barbezat, Debra A.; Hughes, James W.

2005-01-01

This paper presents estimates of the gender salary gap and discrimination based on the most recent national faculty survey data. New estimates for 1999 indicate that male faculty members still earn 20.7% more than comparable female colleagues. Depending upon which decomposition technique is employed, the portion of this gap attributable to…

Understanding the Gender Gap in Introductory Physics

NASA Astrophysics Data System (ADS)

Finkelstein, Noah; Kost, Lauren; Pollock, Steven

2008-04-01

While it has been suggested interactive engagement (IE) techniques can eliminate the gender gap (the difference in performance between men and women on measures of conceptual learning), we find that, at our institution, the gender gap persisted from pre to posttest in IE classes (Pollock, Physical Review: ST PER. 3, 010107, 2007). This talk reports on a three-part follow-up study that investigates what factors contribute to the gender gap. First, we analyze student grades in different components of the course and find that men and women's course grades are not significantly different (p>0.1), but men outscore women on exams and women outscore men on homework and participation. Second, we compare average posttest scores of men and women who score similarly on the pretest and find that there are no significant differences between men and women's average posttest scores. Finally, we analyze other factors in addition to the pretest score that could influence the posttest score and find that gender does not account for a majorportion of the variation in posttest scores when a measure of mathematics performance is included. These findings indicate that the gender gap exists in interactive physics classes, but may be due in large part to differences in preparation, background, and math skills as assessed by traditional survey instruments.

Nanodopant-Induced Band Modulation in AgPbmSbTe2+m-Type Nanocomposites

DOE Office of Scientific and Technical Information (OSTI.GOV)

Zhang, Yi; Ke, Xuezhi; Chen, Changfeng

2011-01-01

We elucidate the fundamental physics of nanoscale dopants in narrow band-gap thermoelectric nanocomposites XPbmYTe2+m (X=Ag,Na; Y=Sb,Bi) using first-principles calculations. Our re- sults unveil distinct band-structure modulations, most notably a sizable band-gap widening driven by nanodopant-induced lattice strain and a band split-off at the conduction band minimum caused by the spin-orbit interaction of the dopant Sb or Bi atoms. Boltzmann transport calculations demon- strate that these band modulations have significant but competing effects on high-temperature elec- tron transport behavior. These results offer insights for understanding recent experimental findings and suggest principles for optimizing thermoelectric properties of narrow band-gap semiconductors.

Broadening of effective photonic band gaps in biological chiral structures: From intrinsic narrow band gaps to broad band reflection spectra

NASA Astrophysics Data System (ADS)

Vargas, W. E.; Hernández-Jiménez, M.; Libby, E.; Azofeifa, D. E.; Solis, Á.; Barboza-Aguilar, C.

2015-09-01

Under normal illumination with non-polarized light, reflection spectra of the cuticle of golden-like and red Chrysina aurigans scarabs show a structured broad band of left-handed circularly polarized light. The polarization of the reflected light is attributed to a Bouligand-type left-handed chiral structure found through the scarab's cuticle. By considering these twisted structures as one-dimensional photonic crystals, a novel approach is developed from the dispersion relation of circularly polarized electromagnetic waves traveling through chiral media, to show how the broad band characterizing these spectra arises from an intrinsic narrow photonic band gap whose spectral position moves through visible and near-infrared wavelengths.

Band structures of TiO2 doped with N, C and B*

PubMed Central

Xu, Tian-Hua; Song, Chen-Lu; Liu, Yong; Han, Gao-Rong

2006-01-01

This study on the band structures and charge densities of nitrogen (N)-, carbon (C)- and boron (B)-doped titanium dioxide (TiO2) by first-principles simulation with the CASTEP code (Segall et al., 2002) showed that the three 2p bands of impurity atom are located above the valence-band maximum and below the Ti 3d bands, and that along with the decreasing of impurity atomic number, the fluctuations become more intensive. We cannot observe obvious band-gap narrowing in our result. Therefore, the cause of absorption in visible light might be the isolated impurity atom 2p states in band-gap rather than the band-gap narrowing. PMID:16532532

Shape-controlled narrow-gap SnTe nanostructures: From nanocubes to nanorods and nanowires

DOE PAGES

Guo, Shaojun; Andrew F. Fidler; He, Kai; ...

2015-11-06

In this study, the rational design and synthesis of narrow-gap colloidal semiconductor nanocrystals (NCs) is an important step toward the next generation of solution-processable photovoltaics, photodetectors, and thermoelectric devices. SnTe NCs are particularly attractive as a Pb-free alternative to NCs of narrow-gap lead chalcogenides. Previous synthetic efforts on SnTe NCs have focused on spherical nanoparticles. Here we report new strategies for synthesis of SnTe NCs with shapes tunable from highly monodisperse nanocubes, to nanorods (NRs) with variable aspect ratios, and finally to long, straight nanowires (NWs). Reaction at high temperature quickly forms thermodynamically favored nanocubes, but low temperatures lead tomore » elongated particles. Transmission electron microscopy studies of reaction products at various stages of the synthesis reveal that the growth and shape-focusing of monodisperse SnTe nanocubes likely involves interparticle ripening, while directional growth of NRs and NWs may be initiated by particle dimerization via oriented attachment.« less

Evidence for Itinerant Carriers in an Anisotropic Narrow-Gap Semiconductor by Angle-Resolved Photoemission Spectroscopy.

PubMed

Ju, Sailong; Bai, Wei; Wu, Liming; Lin, Hua; Xiao, Chong; Cui, Shengtao; Li, Zhou; Kong, Shuai; Liu, Yi; Liu, Dayong; Zhang, Guobin; Sun, Zhe; Xie, Yi

2018-01-01

The ability to accurately determine the electronic structure of solids has become a key prerequisite for modern functional materials. For example, the precise determination of the electronic structure helps to balance the three thermoelectric parameters, which is the biggest challenge to design high-performance thermoelectric materials. Herein, by high-resolution, angle-resolved photoemission spectroscopy (ARPES), the itinerant carriers in CsBi 4 Te 6 (CBT) are revealed for the first time. CBT is a typical anisotropic, narrow-gap semiconductor used as a practical candidate for low-temperature thermoelectric applications, and p-doped CBT series show superconductivity at relatively low carrier concentrations. The ARPES results show a significantly larger bandwidth near the Fermi surface than calculations, which means the carriers transport anisotropically and itinerantly in CBT. It is reasonable to believe that these newly discovered features of carriers in narrow-gap semiconductors are promising for designing optimal thermoelectric materials and superconductors. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Narrowing of band gap at source/drain contact scheme of nanoscale InAs-nMOS

NASA Astrophysics Data System (ADS)

Mohamed, A. H.; Oxland, R.; Aldegunde, M.; Hepplestone, S. P.; Sushko, P. V.; Kalna, K.

2018-04-01

A multi-scale simulation study of Ni/InAs nano-scale contact aimed for the sub-14 nm technology is carried out to understand material and transport properties at a metal-semiconductor interface. The deposited Ni metal contact on an 11 nm thick InAs channel forms an 8.5 nm thick InAs leaving a 2.5 nm thick InAs channel on a p-type doped (1 × 1016 cm-3) AlAs0.47Sb0.53 buffer. The density functional theory (DFT) calculations reveal a band gap narrowing in the InAs at the metal-semiconductor interface. The one-dimensional (1D) self-consistent Poisson-Schrödinger transport simulations using real-space material parameters extracted from the DFT calculations at the metal-semiconductor interface, exhibiting band gap narrowing, give a specific sheet resistance of Rsh = 90.9 Ω/sq which is in a good agreement with an experimental value of 97 Ω/sq.

Productive Pedagogies: Narrowing the Gap between Schools and Communities?

ERIC Educational Resources Information Center

Leat, David; Thomas, Ulrike

2016-01-01

There is little sign that current attempts to close the "attainment gap" are working. This article argues for a different approach to addressing the "gap," based on a community asset approach. The authors describe ongoing work on community curriculum making in North-East England, in which schools undertake projects using…

Determinants of gender differences in health among the elderly in Latin America.

PubMed

Trujillo, Antonio J; Mroz, Thomas A; Piras, Claudia; Vernon, John A; Angeles, Gustavo

2010-01-01

This paper identifies the main gender differences in health and socio-economic characteristics of the elderly in four Latin American cities. Using locally weighted regressions as well as a flexible model specification that treats age non-parametrically, we investigate whether these unadjusted gender gaps in health are due to gender differences in the distribution of age and other explanatory variables. Interestingly, for all cities, the analyses show a gender gap in health in favour of males at each age. The gaps are larger when one uses functional impairment in mobility and personal self-care as indicators of an individual's health instead of self-reported health. Furthermore, controlling for demographic characteristics, baseline health and the availability of family support do little to change the disadvantage for women in measured health outcomes. Controlling for socio-economic variables does, however, reduce most of the gender differences in health.

Variation in the Gender Gap in Inactive and Active Life Expectancy by the Definition of Inactivity Among Older Adults.

PubMed

Malhotra, Rahul; Chan, Angelique; Ajay, Shweta; Ma, Stefan; Saito, Yasuhiko

2016-10-01

To assess variation in gender gap (female-male) in inactive life expectancy (IALE) and active life expectancy (ALE) by definition of inactivity. Inactivity, among older Singaporeans, was defined as follows: Scenario 1-health-related difficulty in activities of daily living (ADLs); Scenario 2-health-related difficulty in ADLs/instrumental ADLs (IADLs); Scenario 3-health-related difficulty in ADLs/IADLs or non-health-related non-performance of IADLs. Multistate life tables computed IALE and ALE at age 60, testing three hypotheses: In all scenarios, life expectancy, absolute and relative IALE, and absolute ALE are higher for females (Hypothesis 1 [H1]); gender gap in absolute and relative IALE expands, and in absolute ALE, it contracts in Scenario 2 versus 1 (Hypothesis 2 [H2]); gender gap in absolute and relative IALE decreases, and in absolute ALE, it increases in Scenario 3 versus 2 (Hypothesis 3 [H3]). H1 was supported in Scenarios 1 and 3 but not Scenario 2. Both H2 and H3 were supported. Definition of inactivity influences gender gap in IALE and ALE. © The Author(s) 2016.

Interindustry Wage Differentials and the Gender Wage Gap.

ERIC Educational Resources Information Center

Fields, Judith; Wolff, Edward N.

1995-01-01

Wages of female workers differ significantly by industry. The average woman earns about 65% as much as the average man; 12%-22% of the gap is explained by differences in patterns of interindustry wage differentials and 15%-19% by differences in gender distribution of workers. Combined industry effects explain about one-third of the gender wage…

Redressing the Gender Gap in Science through Use of the Thinking Science Program

ERIC Educational Resources Information Center

Kerr, Andrea

2016-01-01

Currently (and historically) there exists a significant gender gap within the STEM fields in our schools, tertiary institutions, and workforce. The disproportion of gender representation in the workforce filters down to the classroom level, where teachers see a lack of confidence and engagement in their female students resulting in poor results or…

A Social Role Theory Perspective on Gender Gaps in Political Attitudes

ERIC Educational Resources Information Center

Diekman, Amanda B.; Schneider, Monica C.

2010-01-01

Men and women tend to espouse different political attitudes, as widely noted by both journalists and social scientists. A deeper understanding of why and when gender gaps exist is necessary because at least some gender differences in the political realm are both pervasive and impactful. In this article, we apply a social role theory framework to…

The High School Environment and the Gender Gap in Science and Engineering

ERIC Educational Resources Information Center

Legewie, Joscha; DiPrete, Thomas A.

2014-01-01

Despite the striking reversal of the gender gap in education, women pursue science, technology, engineering, and mathematics (STEM) degrees at much lower rates than those of their male peers. This study extends existing explanations for these gender differences and examines the role of the high school context for plans to major in STEM fields.…

The Pursuit of Gender Equality: An Uphill Battle

ERIC Educational Resources Information Center

OECD Publishing, 2017

2017-01-01

Gender inequalities persist in all areas of social and economic life and across countries. Young women in OECD countries generally obtain more years of schooling than young men, but women are less likely than men to engage in paid work. Gaps widen with age, as motherhood typically has marked negative effects on gender pay gaps and career…

Adolescent Moral Motivations for Civic Engagement: Clues to the Political Gender Gap?

ERIC Educational Resources Information Center

Malin, Heather; Tirri, Kirsi; Liauw, Indrawati

2015-01-01

This study explored gender differences in moral motivations and civic engagement among adolescents to add to existing explanations for the gender gap in political engagement in the US. We examined moral motivations for civic engagement in a sample of 1578 high school seniors, using a mixed-methods analysis of survey and interview data. Multiple…

Servant-Leadership as Gender-Integrative Leadership: Paving a Path for More Gender-Integrative Organizations through Leadership Education

ERIC Educational Resources Information Center

Reynolds, Kae

2011-01-01

Although numerous women have contributed essays and research on servant-leadership there is still a considerable gap in literature addressing feminist perspectives and issues of gender in servant-leadership. This theoretical paper attempts to fill that gap by presenting a discussion of servant-leadership that is informed through feminist…

Geographic Variation of District-Level Gender Achievement Gaps within the United States

ERIC Educational Resources Information Center

Reardon, Sean; Fahle, Erin; Kalogrides, Demetra; Podolsky, Anne; Zarate, Rosalia

2016-01-01

Gender achievement gaps on national and state assessments have been a popular research topic over the last few decades. Many prior studies examine these gaps in different subjects (e.g., mathematics, reading, and science) and grades (typically kindergarten through eighth grade) for students living in various regions (typically states or countries)…

Is the gap more than gender? A longitudinal analysis of gender, gender role orientation, and earnings.

PubMed

Judge, Timothy A; Livingston, Beth A

2008-09-01

This study investigated the relationships among gender, gender role orientation (i.e., attitudes toward the gendered separation of roles at work and at home), and earnings. A multilevel model was conceptualized in which gender role orientation and earnings were within-individual variables that fluctuate over time (although predictors of between-individual differences in gender role orientation were also considered). Results indicated that whereas traditional gender role orientation was positively related to earnings, gender significantly predicted the slope of this relationship: Traditional gender role orientation was strongly positively associated with earnings for men; it was slightly negatively associated with earnings for women. Occupational segregation partly explained these gender differences. Overall, the results suggest that although gender role attitudes are becoming less traditional for men and for women, traditional gender role orientation continues to exacerbate the gender wage gap.

Trends in gender segregation in the choice of science and engineering majors.

PubMed

Mann, Allison; Diprete, Thomas A

2013-11-01

Numerous theories have been put forward for the high and continuing levels of gender segregation in science, technology, engineering, and mathematics (STEM) fields, but research has not systematically examined the extent to which these theories for the gender gap are consistent with actual trends. Using both administrative data and four separate longitudinal studies sponsored by the U.S. Department of Education's National Center for Education Statistics (NCES), we evaluate several prominent explanations for the persisting gender gap in STEM fields related to mathematics performance and background and general life goals, and find that none of them are empirically satisfactory. Instead, we suggest that the structure of majors and their linkages to professional training and careers may combine with gender differences in educational goals to influence the persisting gender gap in STEM fields. An analysis of gendered career aspirations, course-taking patterns, and pathways to medical and law school supports this explanation. Copyright © 2013 Elsevier Inc. All rights reserved.

Employer-sponsored health insurance and the gender wage gap.

PubMed

Cowan, Benjamin; Schwab, Benjamin

2016-01-01

During prime working years, women have higher expected healthcare expenses than men. However, employees' insurance rates are not gender-rated in the employer-sponsored health insurance (ESI) market. Thus, women may experience lower wages in equilibrium from employers who offer health insurance to their employees. We show that female employees suffer a larger wage gap relative to men when they hold ESI: our results suggest this accounts for roughly 10% of the overall gender wage gap. For a full-time worker, this pay gap due to ESI is on the order of the expected difference in healthcare expenses between women and men. Copyright © 2015 Elsevier B.V. All rights reserved.

FINAL REPORT ON GDE GAP CELL

DOE Office of Scientific and Technical Information (OSTI.GOV)

Herman, D.; Summers, W.; Danko, E.

2009-09-28

A project has been undertaken to develop an electrochemical cell and support equipment for evaluation of a gas diffusion electrode-based, narrow-electrolyte-gap anode for SO{sub 2} oxidation in the hydrogen production cycle of the hybrid sulfur (HyS) process. The project supported the HyS development program at the Savannah River National Lab (SRNL). The benefits of using a gas diffusion electrode in conjunction with the narrow anolyte gap are being determined through electrochemical polarization testing under a variety conditions, and by comparison to results produced by SRNL and others using anode technologies that have no anolyte gap. These test results indicate thatmore » the NGA cell has low resistance suitable for use in the HyS electrolyzer, exhibits good efficiency at high current densities compared to the direct feed HyS electrolyzer, and indicates robust performance in extended testing over 65 hours. Seepage episodes were mostly caused by port clogging, which can be mitigated in future designs through minor modifications to the hardware. Significant reductions in sulfur crossover have not yet been demonstrated in the NGA configuration compared to in-house direct feed testing, but corroborative sulfur layer analysis is as yet incomplete. Further testing in a single-pass anolyte configuration is recommended for complete evaluation of steady-state electrochemical efficiency and SO{sub 2} crossover in the narrow gap configuration.« less

The perceived organizational impact of the gender gap across a Canadian department of medicine and proposed strategies to combat it: a qualitative study.

PubMed

Pattani, Reena; Marquez, Christine; Dinyarian, Camellia; Sharma, Malika; Bain, Julie; Moore, Julia E; Straus, Sharon E

2018-04-10

Despite the gender parity existing in medical schools for over three decades, women remain underrepresented in academic medical centers, particularly in senior ranks and in leadership roles. This has consequences for patient care, education, research, and workplace culture within healthcare organizations. This study was undertaken to explore the perspectives of faculty members at a single department of medicine on the impact of the existing gender gap on organizational effectiveness and workplace culture, and to identify systems-based strategies to mitigate the gap. The study took place at a large university department of medicine in Toronto, Canada, with six affiliated hospitals. In this qualitative study, semi-structured individual interviews were conducted between May and September 2016 with full-time faculty members who held clinical and university-based appointments. Transcripts of the interviews were analyzed using thematic analysis. Three authors independently reviewed the transcripts to determine a preliminary list of codes and establish a coding framework. A modified audit consensus coding approach was applied; a single analyst reviewed all the transcripts and a second analyst audited 20% of the transcripts in each round of coding. Following each round, inter-rater reliability was determined, discrepancies were resolved through discussion, and modifications were made as needed to the coding framework. The analysis revealed faculty members' perceptions of the gender gap, potential contributing factors, organizational impacts, and possible solutions to bridge the gap. Of the 43 full-time faculty members who participated in the survey (29 of whom self-identified as female), most participants were aware of the existing gender gap within academic medicine. Participants described social exclusion, reinforced stereotypes, and unprofessional behaviors as consequences of the gap on organizational effectiveness and culture. They suggested improvements in (1) the processes for recruitment, hiring, and promotion; (2) inclusiveness of the work environment; (3) structures for mentorship; and (4) ongoing monitoring of the gap. The existing gender gap in academic medicine may have negative consequences for organizational effectiveness and workplace culture but many systems-based strategies to mitigate the gap exist. Although these solutions warrant rigorous evaluation, they are feasible to institute within most healthcare organizations immediately.

Closing the gender leadership gap: a multi-centre cross-country comparison of women in management and leadership in academic health centres in the European Union.

PubMed

Kuhlmann, Ellen; Ovseiko, Pavel V; Kurmeyer, Christine; Gutiérrez-Lobos, Karin; Steinböck, Sandra; von Knorring, Mia; Buchan, Alastair M; Brommels, Mats

2017-01-06

Women's participation in medicine and the need for gender equality in healthcare are increasingly recognised, yet little attention is paid to leadership and management positions in large publicly funded academic health centres. This study illustrates such a need, taking the case of four large European centres: Charité - Universitätsmedizin Berlin (Germany), Karolinska Institutet (Sweden), Medizinische Universität Wien (Austria), and Oxford Academic Health Science Centre (United Kingdom). The percentage of female medical students and doctors in all four countries is now well within the 40-60% gender balance zone. Women are less well represented among specialists and remain significantly under-represented among senior doctors and full professors. All four centres have made progress in closing the gender leadership gap on boards and other top-level decision-making bodies, but a gender leadership gap remains relevant. The level of achieved gender balance varies significantly between the centres and largely mirrors country-specific welfare state models, with more equal gender relations in Sweden than in the other countries. Notably, there are also similar trends across countries and centres: gender inequality is stronger within academic enterprises than within hospital enterprises and stronger in middle management than at the top level. These novel findings reveal fissures in the 'glass ceiling' effects at top-level management, while the barriers for women shift to middle-level management and remain strong in academic positions. The uneven shifts in the leadership gap are highly relevant and have policy implications. Setting gender balance objectives exclusively for top-level decision-making bodies may not effectively promote a wider goal of gender equality. Academic health centres should pay greater attention to gender equality as an issue of organisational performance and good leadership at all levels of management, with particular attention to academic enterprises and newly created management structures. Developing comprehensive gender-sensitive health workforce monitoring systems and comparing progress across academic health centres in Europe could help to identify the gender leadership gap and utilise health human resources more effectively.

Gender gap matters in maternal mortality in low and lower-middle-income countries: A study of the global Gender Gap Index.

PubMed

Choe, Seung-Ah; Cho, Sung-Il; Kim, Hongsoo

2017-09-01

Reducing maternal mortality has been a crucial part of the global development agenda. According to modernisation theory, the effect of gender equality on maternal health may differ depending on a country's economic development status. We explored the correlation between the Global Gender Gap Index (GGI) provided by the World Economic Forum and the maternal mortality ratio (MMR) obtained from the World Development Indicators database of the World Bank. The relationships between each score in the GGI, including its four sub-indices (measuring gender gaps in economic participation, educational attainment, health and survival, and political empowerment), and the MMR were analysed. When the countries were stratified by gross national income per capita, the low and lower-middle-income countries had lower scores in the GGI, and lower scores in the economic participation, educational attainment, and political empowerment sub-indices than the high-income group. Among the four sub-indices, the educational attainment sub-index showed a significant inverse correlation with the MMR in low and lower-middle-income countries when controlling for the proportion of skilled birth attendance and public share of health expenditure. This finding suggests that strategic efforts to reduce the gender gap in educational attainment could lead to improvements in maternal health in low and lower-middle-income countries.

The gap in scientific knowledge and role of science communication in South Korea.

PubMed

Chang, Jeong-Heon; Kim, Sei-Hill; Kang, Myung-Hyun; Shim, Jae Chul; Ma, Dong Hoon

2017-01-01

Using data from a national survey of South Koreans, this study explores the role of science communication in enhancing three different forms of scientific knowledge ( factual, procedural, and subjective). We first assess learning effects, looking at the extent to which citizens learn science from different channels of communication (interpersonal discussions, traditional newspapers, television, online newspapers, and social media). We then look into the knowledge gap hypothesis, investigating how different communication channels can either widen or narrow the gap in knowledge between social classes. Television was found to function as a "knowledge leveler," narrowing the gap between highly and less educated South Koreans. The role of online newspapers in science learning is pronounced in our research. Reading newspapers online indicated a positive relationship to all three measures of knowledge. Contrary to the knowledge-leveling effect of television viewing, reading online newspapers was found to increase, rather than decrease, the gap in knowledge. Implications of our findings are discussed in detail.

Giant Hall Photoconductivity in Narrow-Gapped Dirac Materials

NASA Astrophysics Data System (ADS)

Song, Justin C. W.; Kats, Mikhail A.

2016-12-01

Carrier dynamics acquire a new character in the presence of Bloch-band Berry curvature, which naturally arises in gapped Dirac materials (GDMs). Here we argue that photoresponse in GDMs with small band gaps is dramatically enhanced by Berry curvature. This manifests in a giant and saturable Hall photoconductivity when illuminated by circularly polarized light. Unlike Hall motion arising from a Lorentz force in a magnetic field, which impedes longitudinal carrier motion, Hall photoconductivity arising from Berry curvature can boost longitudinal carrier transport. In GDMs, this results in a helicity-dependent photoresponse in the Hall regime, where photoconductivity is dominated by its Hall component. We find that the induced Hall conductivity per incident irradiance is enhanced by up to six orders of magnitude when moving from the visible regime (with corresponding band gaps) to the far infrared. These results suggest that narrow-gap GDMs are an ideal test-bed for the unique physics that arise in the presence of Berry curvature, and open a new avenue for infrared and terahertz optoelectronics.

Accounting for the Gender Gaps in Student Performance in Reading and Mathematics: Evidence from 31 Countries

ERIC Educational Resources Information Center

Marks, Gary N.

2008-01-01

In most countries, girls perform better than boys in reading but worse in mathematics. However, there is much variation between countries. Explanations for the gender gaps include the organisation of the school system, students' expectations and macro-societal factors. The purpose of this paper is to account for gender differences in both reading…

Understanding the Gender Gap in Science and Engineering: Evidence from the Chilean College Admissions Tests

ERIC Educational Resources Information Center

Gándara, Fernanda; Silva, Monica

2016-01-01

This study seeks to develop a better understanding of the underrepresentation of women in science and engineering by analyzing the gender gaps (a) in the interest in pursuing a science degree and (b) on science achievement. We use national-level college admissions data to examine gender differences and to explore the association between these…

Whose Problem Is Poverty?

ERIC Educational Resources Information Center

Rothstein, Richard

2008-01-01

Closing or substantially narrowing achievement gaps requires combining school improvement with reforms to narrow the vast socioeconomic inequalities in the United States. Recognizing the effects of socioeconomic disparities on student learning is not "making excuses" for poor instruction or "letting schools off the hook" for raising student…

Explaining the Gender Gap in Help to Parents: The Importance of Employment

ERIC Educational Resources Information Center

Sarkisian, Natalia; Gerstel, Naomi

2004-01-01

Although it is well established that adult daughters spend more time giving assistance to their parents than do sons, the sources of this gender gap are not well understood. This paper asks: To what extent can this gap be explained by structural variation, especially the different rates of employment and kinds of jobs that women and men tend to…

Bridging the Civil Military Gap Capitalizing on Crisis

DTIC Science & Technology

2002-01-01

solutions. Researchers identifying the sources of the gap discussed above, have also suggested some methods for reducing the gap . While some are policy...Strategy Research Project DATE: 09 April 2002 PAGES: 42 CLASSIFICATION: Unclassified Researchers have identified a "civil-military gap ," an observable...would indicate a desire by the civilian populous to draw closer to the military, creating an opportunity to close or at least narrow this gap . The media

Social and behavioral skills and the gender gap in early educational achievement.

PubMed

Diprete, Thomas A; Jennings, Jennifer L

2012-01-01

Though many studies have suggested that social and behavioral skills play a central role in gender stratification processes, we know little about the extent to which these skills affect gender gaps in academic achievement. Analyzing data from the Early Child Longitudinal Study-Kindergarten Cohort, we demonstrate that social and behavioral skills have substantively important effects on academic outcomes from kindergarten through fifth grade. Gender differences in the acquisition of these skills, moreover, explain a considerable fraction of the gender gap in academic outcomes during early elementary school. Boys get roughly the same academic return to social and behavioral skills as their female peers, but girls begin school with more advanced social and behavioral skills and their skill advantage grows over time. While part of the effect may reflect an evaluation process that rewards students who better conform to school norms, our results imply that the acquisition of social and behavioral skills enhances learning as well. Our results call for a reconsideration of the family and school-level processes that produce gender gaps in social and behavioral skills and the advantages they confer for academic and later success. Copyright © 2011 Elsevier Inc. All rights reserved.

The gender health gap in China: A decomposition analysis.

PubMed

Zhang, Hao; Bago d'Uva, Teresa; van Doorslaer, Eddy

2015-07-01

Around the world, and in spite of their higher life expectancy, women tend to report worse health than men until old age. Explanations for this gender gap in self-perceived health may be different in China than in other countries due to the traditional phenomenon of son preference. We examine several possible reasons for the gap using the Chinese SAGE data. We first rule out differential reporting by gender as a possible explanation, exploiting information on anchoring vignettes in eight domains of health functioning. Decomposing the gap in general self-assessed health, we find that about 31% can be explained by socio-demographic factors, most of all by discrimination against women in education in the 20th century. A more complete specification including chronic conditions and health functioning fully explains the remainder of the gap (about 69%). Adding chronic conditions and health functioning also explains at least two thirds of the education contribution, suggesting how education may affect health. In particular, women's higher rates of arthritis, angina and eye diseases make the largest contributions to the gender health gap, by limiting mobility, increasing pain and discomfort, and causing sleep problems and a feeling of low energy. Copyright © 2015 Elsevier B.V. All rights reserved.

Is it getting better? An analytical method to test trends in health disparities, with tobacco use among sexual minority vs. heterosexual youth as an example.

PubMed

Homma, Yuko; Saewyc, Elizabeth; Zumbo, Bruno D

2016-05-23

Previous studies have documented higher health risks for lesbian, gay, and bisexual youth compared to heterosexual youth. However, none has reported whether the sexual orientation-based gaps have widened, narrowed, or remained unchanged over time. The purpose of this study was to develop a way to test differences in trends between sexual minority and heterosexual youth cohorts in population-based studies, with cigarette smoking as an exemplar. We analysed the Minnesota Student Survey of 1998-2010, a repeated, cross-sectional census of adolescent health in grades 9 and 12. Our sample was students with recent sexual experience (Ns = 17,376-19,617). Sexual orientation was measured by gender of sexual partners in the past 12 months: students with only opposite-gender partner(s) (OPPOS), students with both male and female partners (BOTH), students with only same-gender partner(s) (SAME). We used logistic regressions to examine trends in prevalence of past-month cigarette smoking from 1998 to 2010, separately for each orientation group. We then applied novel interaction analyses to test whether disparities in smoking prevalence between OPPOS and SAME/BOTH changed over time. Recent smoking rates decreased over time among all orientation groups. BOTH adolescents were more likely than OPPOS adolescents to report past 30-day smoking, but there were no significant differences between SAME adolescents and OPPOS adolescents. Year-by-orientation interactions indicated the gap between BOTH adolescents and OPPOS adolescents widened from 1998 to 2004, then persisted between 2004 and 2010. No significant interaction effects were observed between SAME adolescents and OPPOS adolescents. All orientation groups had decreasing trends in recent cigarette smoking; however, disparities in smoking rates remain between heterosexual adolescents and bisexual adolescents. These results provide a new method of not just documenting trends within minority groups, but examining whether health equity is improving for them compared to dominant groups.

Unequal depression for equal work? How the wage gap explains gendered disparities in mood disorders.

PubMed

Platt, Jonathan; Prins, Seth; Bates, Lisa; Keyes, Katherine

2016-01-01

Mood disorders, such as depression and anxiety, are more prevalent among women than men. This disparity may be partially due to the effects of structural gender discrimination in the work force, which acts to perpetuate gender differences in opportunities and resources and may manifest as the gender wage gap. We sought to quantify and operationalize the wage gap in order to explain the gender disparity in depression and anxiety disorders, using data from a 2001-2002 US nationally representative survey of 22,581 working adults ages 30-65. Using established Oaxaca-Blinder decomposition methods to account for gender differences in individual-level productivity, our models reduced the wage gap in our sample by 13.5%, from 54% of men's pay to 67.5% of men's pay. We created a propensity-score matched sample of productivity indicators to test if the direction of the wage gap moderated the effects of gender on depression or anxiety. Where female income was less than the matched male counterpart, odds of both disorders were significantly higher among women versus men (major depressive disorder OR: 2.43, 95% CI: 1.95-3.04; generalized anxiety disorder OR: 4.11, 95% CI: 2.80-6.02). Where female income was greater than the matched male, the higher odds ratios for women for both disorders were significantly attenuated (Major Depressive Disorder OR: 1.20; 95% CI: 0.96-1.52) (Generalized Anxiety Disorder OR: 1.5; 95% CI: 1.04-2.29). The test for effect modification by sex and wage gap direction was statistically significant for both disorders. Structural forms of discrimination may explain mental health disparities at the population level. Beyond prohibiting overt gender discrimination, policies must be created to address embedded inequalities in procedures surrounding labor markets and compensation in the workplace. Copyright © 2015 Elsevier Ltd. All rights reserved.

Unequal Depression for Equal Work? How the wage gap explains gendered disparities in mood disorders

PubMed Central

Platt, Jonathan; Prins, Seth; Bates, Lisa; Keyes, Katherine

2016-01-01

Mood disorders, such as depression and anxiety, are more prevalent among women than men. This disparity may be partially due to the effects of structural gender discrimination in the work force, which acts to perpetuate gender differences in opportunities and resources and may manifest as the gender wage gap. We sought to quantify and operationalize the wage gap in order to explain the gender disparity in depression and anxiety disorders, using data from a 2001–2002 US nationally representative survey of 22,581 working adults ages 30–65. Using established Oaxaca-Blinder decomposition methods to account for gender differences in individual-level productivity, our models reduced the wage gap in our sample by 13.5%, from 54% of men’s pay to 67.5% of men’s pay. We created a propensity-score matched sample of productivity indicators to test if the direction of the wage gap moderated the effects of gender on depression or anxiety. Where female income was less than the matched male counterpart, odds of both disorders were significantly higher among women versus men (major depressive disorder OR: 2.43, 95% CI: 1.95–3.04; generalized anxiety disorder OR: 4.11, 95% CI: 2.80–6.02). Where female income was greater than the matched male, the higher odds ratios for women for both disorders were significantly attenuated (Major Depressive Disorder OR: 1.20; 95% CI: 0.96–1.52) (Generalized Anxiety Disorder OR: 1.5; 95% CI: 1.04–2.29). The test for effect modification by sex and wage gap direction was statistically significant for both disorders. Structural forms of discrimination may explain mental health disparities at the population level. Beyond prohibiting overt gender discrimination, policies must be created to address embedded inequalities in procedures surrounding labor markets and compensation in the workplace. PMID:26689629

Gender Difference in Health-Care Expenditure: Evidence from India Human Development Survey

PubMed Central

Saikia, Nandita; Moradhvaj; Bora, Jayanta Kumar

2016-01-01

Background While the gender disparity in health and mortality in various stages of life in India is well documented, there is limited evidence on female disadvantage in health-care expenditure (HCE). Aims Examine the gender difference in HCE in short-term and major morbidity in India, and understand the role of factors underlying the difference. Data and Methods Using two rounds of nationally representative panel data—the India Human Development Survey (IHDS) 2004–2005 and 2011–2012 (IHDS I & II)—we calculate morbidity prevalence rate and mean HCE by gender, and examine the adjusted effect of gender on major morbidity-related HCE by using a two-part regression model. Further, we performed Oaxaca-Blinder decomposition of the gender gap in HCE in major morbidity to understand the contribution of demographic and socio-economic factors. Results Health-care expenditure on females was systematically lower than on males across all demographic and socio-economic groups. Multivariate analysis confirms that female HCE is significantly lower than male HCE even after controlling demographic and socio-economic factors (β = -0.148, p = 0.000, CI:-0.206–0.091). For both short-term and major morbidity, a female disadvantage on HCE increased from IHDS I to IHDS II. For instance, the male–female gap in major morbidity related expenditure increased from INR 1298 to INR 4172. A decomposition analysis of gender gap in HCE demonstrates that about 48% of the gap is attributable to differences in demographic and socio-economic factors (endowment effect), whereas 50% of the gap is due to the differential effect of the determinants (coefficient effect). Interpretation Indians spend less on female health care than on male health care. Most of the gender gap in HCE is not due to differential distribution of factors affecting HCE. PMID:27391322

Ultra-Smooth ZnS Films Grown on Silicon via Pulsed Laser Deposition

NASA Astrophysics Data System (ADS)

Reidy, Christopher; Tate, Janet

2011-10-01

Ultra-smooth, high quality ZnS films were grown on (100) and (111) oriented Si wafers via pulsed laser deposition with a KrF excimer laser in UHV (10-9 Torr). The resultant films were examined with optical spectroscopy, electron diffraction, and electron probe microanalysis. The films have an rms roughness of ˜1.5 nm, and the film stoichiometry is approximately Zn:S :: 1:0.87. Additionally, each film exhibits an optical interference pattern which is not a function of probing location on the sample, indicating excellent film thickness uniformity. Motivation for high-quality ZnS films comes from a proposed experiment to measure carrier amplification via impact ionization at the boundary between a wide-gap and a narrow-gap semiconductor. If excited charge carriers in a sufficiently wide-gap harvester can be extracted into a narrow-gap host material, impact ionization may occur. We seek near-perfect interfaces between ZnS, with a direct gap between 3.3 and 3.7 eV, and Si, with an indirect gap of 1.1 eV.

Enhancing catalytic activity by narrowing local energy gaps--X-ray studies of a manganese water oxidation catalyst.

PubMed

Xiao, Jie; Khan, Munirah; Singh, Archana; Suljoti, Edlira; Spiccia, Leone; Aziz, Emad F

2015-03-01

Changes in the local electronic structure of the Mn 3d orbitals of a Mn catalyst derived from a dinuclear Mn(III) complex during the water oxidation cycle were investigated ex situ by X-ray absorption spectroscopy (XAS) and resonant inelastic X-ray scattering (RIXS) analyses. Detailed information about the Mn 3d orbitals, especially the local HOMO-LUMO gap on Mn sites revealed by RIXS analyses, indicated that the enhancement in catalytic activity (water oxidation) originated from the narrowing of the local HOMO-LUMO gap when electrical voltage and visible light illumination were applied simultaneously to the Mn catalytic system. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

InGaP Heterojunction Barrier Solar Cells

NASA Technical Reports Server (NTRS)

Welser, Roger E. (Inventor)

2014-01-01

A new solar cell structure called a heterojunction barrier solar cell is described. As with previously reported quantum-well and quantum-dot solar cell structures, a layer of narrow band-gap material, such as GaAs or indium-rich InGaP, is inserted into the depletion region of a wide band-gap PN junction. Rather than being thin, however, the layer of narrow band-gap material is about 400-430 nm wide and forms a single, ultrawide well in the depletion region. Thin (e.g., 20-50 nm), wide band-gap InGaP barrier layers in the depletion region reduce the diode dark current. Engineering the electric field and barrier profile of the absorber layer, barrier layer, and p-type layer of the PN junction maximizes photogenerated carrier escape. This new twist on nanostructured solar cell design allows the separate optimization of current and voltage to maximize conversion efficiency.

High-Pressure Band-Gap Engineering in Lead-Free Cs 2 AgBiBr 6 Double Perovskite

DOE Office of Scientific and Technical Information (OSTI.GOV)

Li, Qian; Wang, Yonggang; Pan, Weicheng

Novel inorganic lead-free double perovskites with improved stability are regarded as alternatives to state-of-art hybrid lead halide perovskites in photovoltaic devices. The recently discovered Cs2AgBiBr6 double perovskite exhibits attractive optical and electronic features, making it promising for various optoelectronic applications. However, its practical performance is hampered by the large band gap. In this work, remarkable band gap narrowing of Cs2AgBiBr6 is, for the first time, achieved on inorganic photovoltaic double perovskites through high pressure treatments. Moreover, the narrowed band gap is partially retainable after releasing pressure, promoting its optoelectronic applications. This work not only provides novel insights into the structure–propertymore » relationship in lead-free double perovskites, but also offers new strategies for further development of advanced perovskite devices.« less

Health Inequalities: Trends, Progress, and Policy

PubMed Central

Bleich, Sara N.; Jarlenski, Marian P.; Bell, Caryn N.; LaVeist, Thomas A.

2013-01-01

Health inequalities, which have been well documented for decades, have more recently become policy targets in developed countries. This review describes time trends in health inequalities (by sex, race/ethnicity, and socioeconomic status), commitments to reduce health inequalities, and progress made to eliminate health inequalities in the United States, United Kingdom, and other OECD countries. Time-trend data in the United States indicate a narrowing of the gap between the best- and worst-off groups in some health indicators, such as life expectancy, but a widening of the gap in others, such as diabetes prevalence. Similarly, time-trend data in the United Kingdom indicate a narrowing of the gap between the best- and worst-off groups in some indicators, such as hypertension prevalence, whereas the gap between social classes has increased for life expectancy. More research and better methods are needed to measure precisely the relationships between stated policy goals and observed trends in health inequalities. PMID:22224876

First-principles study of direct and narrow band gap semiconducting β -CuGaO 2

DOE PAGES

Nguyen, Manh Cuong; Zhao, Xin; Wang, Cai-Zhuang; ...

2015-04-16

Semiconducting oxides have attracted much attention due to their great stability in air or water and the abundance of oxygen. Recent success in synthesizing a metastable phase of CuGaO 2 with direct narrow band gap opens up new applications of semiconducting oxides as absorber layer for photovoltaics. Using first-principles density functional theory calculations, we investigate the thermodynamic and mechanical stabilities as well as the structural and electronic properties of the β-CuGaO 2 phase. Our calculations show that the β-CuGaO 2 structure is dynamically and mechanically stable. The energy band gap is confirmed to be direct at the Γ point ofmore » Brillouin zone. In conclusion, the optical absorption occurs right at the band gap edge and the density of states near the valance band maximum is large, inducing an intense absorption of light as observed in experiment.« less

Lonely Moon

NASA Image and Video Library

2016-10-17

Pandora is seen here, in isolation beside Saturn's kinked and constantly changing F ring. Pandora (near upper right) is 50 miles (81 kilometers) wide. The moon has an elongated, potato-like shape (see PIA07632). Two faint ringlets are visible within the Encke Gap, near lower left. The gap is about 202 miles (325 kilometers) wide. The much narrower Keeler Gap, which lies outside the Encke Gap, is maintained by the diminutive moon Daphnis (not seen here). This view looks toward the sunlit side of the rings from about 23 degrees above the ring plane. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Aug. 12, 2016. The view was acquired at a distance of approximately 907,000 miles (1.46 million kilometers) from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 113 degrees. Image scale is 6 miles (9 kilometers) per pixel. http://photojournal.jpl.nasa.gov/catalog/PIA20504

The gender gap in relation to happiness and preferences in married couples after childbirth: evidence from a field experiment in rural Ghana.

PubMed

Kamiya, Yusuke; Akpalu, Bright; Mahama, Emmanuel; Ayipah, Emmanuel Kwesi; Owusu-Agyei, Seth; Hodgson, Abraham; Shibanuma, Akira; Kikuchi, Kimiyo; Jimba, Masamine

2017-03-15

How does the gap in preferences between married couples affect their happiness after childbirth? Are couples that share similar preferences happier? In recent years, gender, marriage, and happiness have been considered to be key issues in public health research. Although much research has examined the happiness status of married couples, practically no study has explored the gender gap in relation to happiness and the preferences of married couples after childbirth. Therefore, our study was conducted to assess the association between the preference gap and the happiness status among married couples in the afterbirth period. We conducted a field experiment in rural communities in the Brong-Ahafo region of Ghana. Participants were 80 married couples who had experienced childbirth within 2 years prior to the survey. As preference indicators, we measured trust, reciprocity, altruism, and risk lovingness through an economic experiment. Then, we assessed how, for a couple, the gap between these preferences affected their happiness. Wives' happiness was positively associated with the absolute value of the gap in risk lovingness between a couple (OR = 4.83, p = 0.08), while husbands' happiness was negatively associated with the gap in trust (OR = -3.58, p = 0.04) or altruism (OR = -3.33, p = 0.02). Within a couple, wives felt greater happiness than their husbands if there was a wider gap in trust (OR = 6.22, p = 0.01), reciprocity (OR = 2.80, p = 0.01), or risk lovingness (OR = 3.81, p = 0.07). The gender gaps in the preference indicators were found to be closely associated with the happiness levels between married couples after childbirth. For the further improvement of maternal and child health, we must consider the gender gaps between couples in relation to happiness and preferences.

Stereotype threat? Effects of inquiring about test takers' gender on conceptual test performance in physics

NASA Astrophysics Data System (ADS)

Maries, Alexandru; Singh, Chandralekha

2015-12-01

It has been found that activation of a stereotype, for example by indicating one's gender before a test, typically alters performance in a way consistent with the stereotype, an effect called "stereotype threat." On a standardized conceptual physics assessment, we found that asking test takers to indicate their gender right before taking the test did not deteriorate performance compared to an equivalent group who did not provide gender information. Although a statistically significant gender gap was present on the standardized test whether or not students indicated their gender, no gender gap was observed on the multiple-choice final exam students took, which included both quantitative and conceptual questions on similar topics.

Why is the gender gap in life expectancy decreasing? The impact of age- and cause-specific mortality in Sweden 1997-2014.

PubMed

Sundberg, Louise; Agahi, Neda; Fritzell, Johan; Fors, Stefan

2018-04-13

To enhance the understanding of the current increase in life expectancy and decreasing gender gap in life expectancy. We obtained data on underlying cause of death from the National Board of Health and Welfare in Sweden for 1997 and 2014 and used Arriaga's method to decompose life expectancy by age group and 24 causes of death. Decreased mortality from ischemic heart disease had the largest impact on the increased life expectancy of both men and women and on the decreased gender gap in life expectancy. Increased mortality from Alzheimer's disease negatively influenced overall life expectancy, but because of higher female mortality, it also served to decrease the gender gap in life expectancy. The impact of other causes of death, particularly smoking-related causes, decreased in men but increased in women, also reducing the gap in life expectancy. This study shows that a focus on overall changes in life expectancies may hide important differences in age- and cause-specific mortality. It also emphasizes the importance of addressing modifiable lifestyle factors to reduce avoidable mortality.

Gender, Resources Across the Life Course, and Cognitive Functioning in Egypt

PubMed Central

YOUNT, KATHRYN M.

2008-01-01

In this article, I evaluate the life-course determinants of cognitive functioning among 1,003 women and men aged 50 and older in Ismailia, Egypt. Three questions motivate this analysis: (1) Do older women have poorer cognitive functioning than do older men?; (2) Do cognitive resources accrued in childhood and adulthood have net positive associations with later-life cognitive functioning for women and men?; and (3) To what extent do differences in the amounts and effects of women’s and men’s cognitive resources account for gaps in their cognitive functioning? Compared with men, women have lower Modified-Mini Mental Status Exam (M-MMSE) scores for overall cognitive functioning. Cognitive resources in childhood and adulthood are jointly associated with the M-MMSE score. About 83% of the gender gap in mean M-MMSE scores is attributable to gaps in men’s and women’s attributes across the life course. Gender gaps in childhood cognitive resources—and especially schooling attainment—account for the largest share (18%) of the residual gender gap in cognitive functioning. PMID:19110904

Does participation in organized sports predict future physical activity for adolescents from diverse economic backgrounds?

PubMed

Walters, Stephanie; Barr-Anderson, Daheia J; Wall, Melanie; Neumark-Sztainer, Dianne

2009-03-01

To examine cross-sectional and longitudinal associations between socioeconomic status (SES), gender, sports participation and moderate-to-vigorous physical activity (MVPA) in adolescents. Project EAT (Eating Among Teens), a population-based longitudinal study followed a socioeconomically and ethnically diverse sample of 1709 adolescents in 1998-1999 (Time 1) and 2003-2004 (Time 2). Mixed model regression analyses were used to examine longitudinal trends in MVPA as a function of SES and previous sports involvement. For both genders, participation in organized sports and weekly hours of MVPA were positively associated with SES. On average, MVPA decreased between high school and young adulthood for both genders. Adolescents who participated in sports during high school showed a steeper decline in weekly hours of MVPA than their non-sports-participating counterparts. SES had a significant moderating effect on the change in MVPA over time for boys who participated in organized sports, with low SES boys showing a steeper decline in MVPA between time periods than higher SES boys. Although on average, a statistically significant difference in MVPA between previous sports participants and nonparticipants remained at Time 2, for all SES groups and both genders, the gap between hours of MVPA was either overcome or significantly narrowed by young adulthood. Increased dependence on organized sports for MVPA may be insufficient to meet the needs of youth following high school, especially for low SES youth. Designing physical activity promotions that reach and address the unique needs of lower SES youth and families is a public health priority.

Physiological employment standards IV: integration of women in combat units physiological and medical considerations.

PubMed

Epstein, Yoram; Yanovich, Ran; Moran, Daniel S; Heled, Yuval

2013-11-01

Anthropometric and physiological factors place the average female soldier at a disadvantage relative to male soldiers in most aspects of physical performance. Aerobic and anaerobic fitness levels are lower in women than in men. Thus, women have a lower overall work capacity and must therefore exert themselves more than men to achieve the same output. The lower weight and fat-free mass and the higher body fat of women are associated with lower muscle strength and endurance, placing them at disadvantage compared with men in carrying out military tasks such as lifting and carrying weights or marching with a load. Working at a higher percentage of their maximal capacity to achieve the same performance levels as men, women tire earlier and are at increased risk of overuse injuries. Their smaller size, different bone geometry and lower bone strength also predispose women to a higher incidence of stress fractures. Although training in gender-integrated groups narrows the gaps in fitness, significant differences between the genders after basic training still remain. Nevertheless, integration of women into military combat professions is feasible in many cases. Some 'close combat roles' will still be an exception, mainly because of the extreme physical demands that are required in those units that are beyond the physiological adaptability capacities of an average female. There is no direct evidence that women have a negative impact on combat effectiveness. Once the gender differences are acknowledged and operational doctrines adjusted accordingly, female soldiers in mixed-gender units can meet the physical standards for the assigned missions.

Promotive and Corrosive Factors in African American Students' Math Beliefs and Achievement.

PubMed

Diemer, Matthew A; Marchand, Aixa D; McKellar, Sarah E; Malanchuk, Oksana

2016-06-01

Framed by expectancy-value theory (which posits that beliefs about and the subjective valuation of a domain predict achievement and decision-making in that domain), this study examined the relationships among teacher differential treatment and relevant math instruction on African American students' self-concept of math ability, math task value, and math achievement. These questions were examined by applying structural equation modeling to 618 African American youth (45.6 % female) followed from 7th to 11th grade in the Maryland Adolescent Development in Context Study. While controlling for gender and prior math achievement, relevant math instruction promoted and teacher differential treatment corroded students' math beliefs and achievement over time. Further, teacher discrimination undermined students' perceptions of their teachers, a mediating process under-examined in previous inquiry. These findings suggest policy and practice levers to narrow opportunity gaps, as well as foster math achievement and science, technology, engineering and math success.

Enterprise Bargaining and the Gender Earnings Gap.

ERIC Educational Resources Information Center

Wooden, Mark

1997-01-01

Examination of the widening gender earnings gap in Australia indicates that women's wages continue to lag behind those of men. The main factor appears to be women's concentration in part-time work in enterprises where bargaining is less likely to occur. (JOW)

What Explains the Gender Gap in Financial Literacy? The Role of Household Decision Making.

PubMed

Fonseca, Raquel; Mullen, Kathleen J; Zamarro, Gema; Zissimopoulos, Julie

2012-01-01

Using newly collected data from the RAND American Life Panel, we examine potential explanations for the gender gap in financial literacy, including the role of marriage and who within a couple makes the financial decisions. Blinder-Oaxaca decomposition reveals the majority of the gender gap in financial literacy is not explained by differences in the characteristics of men and women-but rather differences in coefficients, or how literacy is produced. We find that financial decision making of couples is not centralized in one spouse although it is sensitive to the relative education level of spouses.

What Explains the Gender Gap in Financial Literacy? The Role of Household Decision Making

PubMed Central

FONSECA, RAQUEL; MULLEN, KATHLEEN J.; ZAMARRO, GEMA; ZISSIMOPOULOS, JULIE

2012-01-01

Using newly collected data from the RAND American Life Panel, we examine potential explanations for the gender gap in financial literacy, including the role of marriage and who within a couple makes the financial decisions. Blinder–Oaxaca decomposition reveals the majority of the gender gap in financial literacy is not explained by differences in the characteristics of men and women—but rather differences in coefficients, or how literacy is produced. We find that financial decision making of couples is not centralized in one spouse although it is sensitive to the relative education level of spouses. PMID:23049140

The Gender Wage Gap among Young Adults in the United States: The Importance of Money versus People

ERIC Educational Resources Information Center

Fortin, Nicole M.

2008-01-01

Using two single-cohort longitudinal surveys, the NLS72 and the NELS88, I investigate the impact of four noncognitive traits--self-esteem, external locus of control, the importance of money/work and the importance of people/family--on wages and on the gender wage gap among these young workers. I find that gender differences in these noncognitive…

Closing The Gender Gap Girls, Technological Fluency, And PBL

ERIC Educational Resources Information Center

McGrath, Diane

2004-01-01

Recently I read the book Ghosts in the Machine: Women?s Voices in Research with Technology, and I was drawn into thinking about the well-known gender gap in the use of technology. I hadn?t looked at gender in technology use very closely in several years because in my own research, I had observed that girls like to use the new multimedia tools just…

Why Do More Women than Men Want to Earn a Four-Year Degree? Exploring the Effects of Gender, Social Origin, and Social Capital on Educational Expectations

ERIC Educational Resources Information Center

Wells, Ryan S.; Seifert, Tricia A.; Padgett, Ryan D.; Park, Sueuk; Umbach, Paul D.

2011-01-01

Students' educational expectations are one of the strongest predictors of their future educational attainment (Mortimer, 1996; Reynolds & Burge, 2008; Sewell & Hauser, 1980; Sewell & Shah, 1968). Thus, the growing gender gap in educational expectations partially explains the growth in the gender gap in educational attainment (Reynolds & Burge,…

Gender and Student Achievement in English Schools. CEE DP 58

ERIC Educational Resources Information Center

Machin, Stephen; McNally, Sandra

2006-01-01

In the UK, there is a marked gender gap in the educational attainment of boys and girls. At the end of compulsory education, 10 per cent fewer boys achieve 5 or more good GCSEs. This gap is by no means confined to GCSE. It is evident at all Key Stages. Furthermore, some indicators suggest that the gap has widened over time. In this paper, we…

Equal Pay for Working Families. National and State Data on the Pay Gap and Its Costs. A Joint Research Project.

ERIC Educational Resources Information Center

Hartmann, Heidi; Allen, Katherine; Owens, Christine

A national study, including state-by-state breakouts, analyzed Census Bureau and Bureau of Labor Statistics data to explore the wage gap. Median weekly earnings of men and women and of minorities and nonminorities were analyzed. Gender-based earnings differences and gender wage gaps were large for all women--and especially large for minority…

Electronic characterization of defects in narrow gap semiconductors: Comparison of electronic energy levels and formation energies in mercury cadmium telluride, mercury zinc telluride, and mercury zinc selenide

NASA Technical Reports Server (NTRS)

Patterson, James D.; Li, Wei-Gang

1995-01-01

The project has evolved to that of using Green's functions to predict properties of deep defects in narrow gap materials. Deep defects are now defined as originating from short range potentials and are often located near the middle of the energy gap. They are important because they affect the lifetime of charge carriers and hence the switching time of transistors. We are now moving into the arena of predicting formation energies of deep defects. This will also allow us to make predictions about the relative concentrations of the defects that could be expected at a given temperature. The narrow gap materials mercury cadmium telluride (MCT), mercury zinc telluride (MZT), and mercury zinc selenide (MZS) are of interest to NASA because they have commercial value for infrared detecting materials, and because there is a good possibility that they can be grown better in a microgravity environment. The uniform growth of these crystals on earth is difficult because of convection (caused by solute depletion just ahead of the growing interface, and also due to thermal gradients). In general it is very difficult to grow crystals with both radial and axial homogeneity.

Crystal Growth and Characterization of the Narrow-Band-Gap Semiconductors OsPn 2 (Pn = P, As, Sb)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bugaris, Daniel E.; Malliakas, Christos D.; Shoemaker, Daniel P.

2014-09-15

Using metal fluxes, crystals of the binary osmium dipnictides OsPn(2) (Pn = P, As, Sb) have been grown for the first time. Single-crystal X-ray diffraction confirms that these compounds crystallize in the marcasite structure type with orthorhombic space group Pnnm. The structure is a three-dimensional framework of corner- and edge-sharing OsPn(6) octahedra, as well as [Pn(2)(-4)] anions. Raman spectroscopy shows the presence of PP single bonds, consistent with the presence of [Pn(2)(-4)] anions and formally Os4+ cations. Optical-band-gap and high-temperature electrical resistivity measurements indicate that these materials are narrow-band-gap semiconductors. The experimentally determined Seebeck coefficients reveal that nominally undoped OsP2more » and OsSb2 are n-type semiconductors, whereas OsAs2 is p-type. Electronic band structure using density functional theory calculations shows that these compounds are indirect narrow-band-gap semiconductors. The bonding p orbitals associated with the Pn(2) dimer are below the Fermi energy, and the corresponding antibonding states are above, consistent with a PnPn single bond. Thermopower calculations using Boltzmann transport theory and constant relaxation time approximation show that these materials are potentially good thermoelectrics, in agreement with experiment.« less

The effect of exchange interaction on quasiparticle Landau levels in narrow-gap quantum well heterostructures.

PubMed

Krishtopenko, S S; Gavrilenko, V I; Goiran, M

2012-04-04

Using the 'screened' Hartree-Fock approximation based on the eight-band k·p Hamiltonian, we have extended our previous work (Krishtopenko et al 2011 J. Phys.: Condens. Matter 23 385601) on exchange enhancement of the g-factor in narrow-gap quantum well heterostructures by calculating the exchange renormalization of quasiparticle energies, the density of states at the Fermi level and the quasiparticle g-factor for different Landau levels overlapping. We demonstrate that exchange interaction yields more pronounced Zeeman splitting of the density of states at the Fermi level and leads to the appearance of peak-shaped features in the dependence of the Landau level energies on the magnetic field at integer filling factors. We also find that the quasiparticle g-factor does not reach the maximum value at odd filling factors in the presence of large overlapping of spin-split Landau levels. We advance an argument that the behavior of the quasiparticle g-factor in weak magnetic fields is defined by a random potential of impurities in narrow-gap heterostructures. © 2012 IOP Publishing Ltd

Gender fairness within the Force Concept Inventory

NASA Astrophysics Data System (ADS)

Traxler, Adrienne; Henderson, Rachel; Stewart, John; Stewart, Gay; Papak, Alexis; Lindell, Rebecca

2018-01-01

Research on the test structure of the Force Concept Inventory (FCI) has largely ignored gender, and research on FCI gender effects (often reported as "gender gaps") has seldom interrogated the structure of the test. These rarely crossed streams of research leave open the possibility that the FCI may not be structurally valid across genders, particularly since many reported results come from calculus-based courses where 75% or more of the students are men. We examine the FCI considering both psychometrics and gender disaggregation (while acknowledging this as a binary simplification), and find several problematic questions whose removal decreases the apparent gender gap. We analyze three samples (total Npre=5391 , Npost=5769 ) looking for gender asymmetries using classical test theory, item response theory, and differential item functioning. The combination of these methods highlights six items that appear substantially unfair to women and two items biased in favor of women. No single physical concept or prior experience unifies these questions, but they are broadly consistent with problematic items identified in previous research. Removing all significantly gender-unfair items halves the gender gap in the main sample in this study. We recommend that instructors using the FCI report the reduced-instrument score as well as the 30-item score, and that credit or other benefits to students not be assigned using the biased items.

Toward Excellence with Equity: An Emerging Vision for Closing the Achievement Gap

ERIC Educational Resources Information Center

Ferguson, Ronald F.

2007-01-01

For the past 15 years, economist Ronald Ferguson has investigated the myriad factors that combine to create racial disparities in academic performance. Beginning with his analysis of the impact of test scores in predicting racial wage gaps, Ferguson has explored how rates of progress in narrowing gaps have varied over the recent decades, the roles…

K-8 Charter Schools: Closing the Achievement Gap. Innovations in Education

ERIC Educational Resources Information Center

US Department of Education, 2007

2007-01-01

This guide is part of a series produced by the U.S. Department of Education, and it builds on two previous works: "Successful Charter Schools" (ED493615) and "Charter High Schools Closing the Achievement Gap" (ED494482). It profiles seven K-8 charter schools that are making headway in narrowing gaps in achievement. It examines…

Urban Schools that Have Narrowed the Achievement Gap: Middle School Math Achievement in an Urban Setting

ERIC Educational Resources Information Center

Sagun, Theodore

2010-01-01

The achievement gap is a persistent academic disparity between White and Asian students and ethnic minorities, English Language Learners, and low-income students. The academic disparity exists within the realm of mathematics. Although many factors are cited for contributing to the achievement gap, this study reviews institutional racism, meager…

The Effects of Reading Recovery™ on the American Indian/Non-American Indian Achievement Gap

ERIC Educational Resources Information Center

Collins, Mary L.

2012-01-01

Despite the attention being paid to the achievement gap of minorities, the regulations and laws being enacted, the research being conducted, and the funding made available to narrow the achievement gap, there is evidence that shows it still exists for American Indians. This study examined the effects of Reading Recovery, an early literacy…

Subgroup Achievement and Gap Trends: Idaho, 2010

ERIC Educational Resources Information Center

Center on Education Policy, 2010

2010-01-01

This paper profiles the student subgroup achievement and gap trends in Idaho for 2010. Idaho showed improvement in reading and math in grade 8 at the basic, proficient, and advanced levels for Latino and white students, low income students, and boys and girls. The state has also made progress in narrowing achievement gaps between Latino and white…

Gender equity issues in astronomy: facts, fiction, and what the adaptive optics community can do to close the gap

NASA Astrophysics Data System (ADS)

D'Orgeville, Céline; Rigaut, François; Maddison, Sarah; Masciadri, Elena

2014-07-01

Gender equality in modern societies is a topic that never fails to raise passion and controversy, in spite of the large body of research material and studies currently available to inform the general public and scientists alike. This paper brings the gender equity and equality discussion on the Adaptive Optics community doorstep. Its aim is threefold: (1) Raising awareness about the gender gap in science and astronomy in general, and in Adaptive Optics in particular; (2) Providing a snapshot of real and/or perceived causes for the gender gap existing in science and engineering; and (3) Presenting a range of practical solutions which have been or are being implemented at various institutions in order to bridge this gap and increase female participation at all levels of the scientific enterprise. Actual data will be presented to support aim (1), including existing gender data in science, engineering and astronomy, as well as original data specific to the Adaptive Optics community to be gathered in time for presentation at this conference. (2) will explore the often complex causes converging to explain gender equity issues that are deeply rooted in our male-dominated culture, including: conscious and unconscious gender biases in perceptions and attitudes, worklife balance, n-body problem, fewer numbers of female leaders and role models, etc. Finally, (3) will offer examples of conscious and pro-active gender equity measures which are helping to bring the female to male ratio closer to its desirable 50/50 target in science and astronomy.

Gender differences in patenting in the academic life sciences.

PubMed

Ding, Waverly W; Murray, Fiona; Stuart, Toby E

2006-08-04

We analyzed longitudinal data on academic careers and conducted interviews with faculty members to determine the scope and causes of the gender gap in patenting among life scientists. Our regressions on a random sample of 4227 life scientists over a 30-year period show that women faculty members patent at about 40% of the rate of men. We found that the gender gap has improved over time but remains large.

Gender Differences in Physics 1: The Impact of a Self-Affirmation Intervention

NASA Astrophysics Data System (ADS)

Kost-Smith, Lauren E.; Pollock, Steven J.; Finkelstein, Noah D.; Cohen, Geoffrey L.; Ito, Tiffany A.; Miyake, Akira

2010-10-01

Prior work at CU-Boulder has shown that a gender gap (difference in male and female performance) exists in both the pre- and post-course conceptual surveys, despite the use of interactive engagement techniques [Kost, et al., PRST-PER 5, 010101]. A potential explanation for this persistent gap is that stereotype threat, the fear of confirming a stereotype about one self, is inhibiting females' performance. Prior research has demonstrated that stereotype threat can be alleviated through the use of self-affirmation, a process of affirming one's overall self-worth and integrity [Cohen, et al., Science 313, 1307]. We report results of a randomized experiment testing the impact of a self-affirmation exercise on the gender gap in Physics 1. The gender gap on a conceptual post-survey is reduced from 19% for students who did not affirm their own values, to 9% for students who completed two 15-minute self-affirmation exercises at the beginning of the semester.

The male-female gap in physician earnings: evidence from a public health insurance system.

PubMed

Theurl, Engelbert; Winner, Hannes

2011-10-01

Empirical evidence from US studies suggests that female physicians earn less than their male counterparts, on average. The earnings gap does not disappear when individual and market characteristics are controlled for. This paper investigates whether a gender earnings difference can also be observed in a health-care system predominantly financed by public insurance companies. Using a unique data set of physicians' earnings recorded by a public social security agency in an Austrian province between 2000 and 2004, we find a gender gap in average earnings of about 32%. A substantial share of this gap (20-47%) cannot be explained by individual and market characteristics, leaving labor market discrimination as one possible explanation for the observed gender earnings difference of physicians. Copyright © 2010 John Wiley & Sons, Ltd.

Exploring the gender gap in the conceptual survey of electricity and magnetism

NASA Astrophysics Data System (ADS)

Henderson, Rachel; Stewart, Gay; Stewart, John; Michaluk, Lynnette; Traxler, Adrienne

2017-12-01

The "gender gap" on various physics conceptual evaluations has been extensively studied. Men's average pretest scores on the Force Concept Inventory and Force and Motion Conceptual Evaluation are 13% higher than women's, and post-test scores are on average 12% higher than women's. This study analyzed the gender differences within the Conceptual Survey of Electricity and Magnetism (CSEM) in which the gender gap has been less well studied and is less consistent. In the current study, data collected from 1407 students (77% men, 23% women) in a calculus-based physics course over ten semesters showed that male students outperformed female students on the CSEM pretest (5%) and post-test (6%). Separate analyses were conducted for qualitative and quantitative problems on lab quizzes and course exams and showed that male students outperformed female students by 3% on qualitative quiz and exam problems. Male and female students performed equally on the quantitative course exam problems. The gender gaps within CSEM post-test scores, qualitative lab quiz scores, and qualitative exam scores were insignificant for students with a CSEM pretest score of 25% or less but grew as pretest scores increased. Structural equation modeling demonstrated that a latent variable, called Conceptual Physics Performance/Non-Quantitative (CPP/NonQnt), orthogonal to quantitative test performance was useful in explaining the differences observed in qualitative performance; this variable was most strongly related to CSEM post-test scores. The CPP/NonQnt of male students was 0.44 standard deviations higher than female students. The CSEM pretest measured CPP/NonQnt much less accurately for women (R2=4 % ) than for men (R2=17 % ). The failure to detect a gender gap for students scoring 25% or less on the pretest suggests that the CSEM instrument itself is not gender biased. The failure to find a performance difference in quantitative test performance while detecting a gap in qualitative performance suggests the qualitative differences do not result from psychological factors such as science anxiety or stereotype threat.

Quantum Algorithms for Scientific Computing and Approximate Optimization

NASA Astrophysics Data System (ADS)

Hadfield, Stuart Andrew

Diversity and inclusion has been a concern for the physics community for nearly 50 years. Despite significant efforts including the American Physical Society (APS) Conferences for Undergraduate Women in Physics (CUWiP) and the APS Bridge Program, women, African Americans, and Hispanics continue to be substantially underrepresented in the physics profession. Similar efforts within the field of engineering, whose students make up the majority of students in the introductory calculus-based physics courses, have also met with limited success. With the introduction of research-based instruments such as the Force Concept Inventory (FCI), the Force and Motion Conceptual Evaluation (FMCE), and the Conceptual Survey of Electricity and Magnetism (CSEM), differences in performance by gender began to be reported. Researchers have yet to come to an agreement as to why these "gender gaps" exist in the conceptual inventories that are widely used in physics education research and/or how to reduce the gaps. The "gender gap" has been extensively studied; on average, for the mechanics conceptual inventories, male students outperform female students by 13% on the pretest and by 12% post instruction. While much of the gender gap research has been geared toward the mechanics conceptual inventories, there have been few studies exploring the gender gap in the electricity and magnetism conceptual inventories. Overall, male students outperform female students by 3.7% on the pretest and 8.5% on the post-test; however, these studies have much more variation including one study showing female students outperforming male students on the CSEM. Many factors have been proposed that may influence the gender gap, from differences in background and preparation to various psychological and sociocultural effects. A parallel but largely disconnected set of research has identified gender biased questions within the FCI. This research has produced sporadic results and has only been performed on the FCI. The work performed in this manuscript will seek to synthesize these strands and use large datasets and deep demographic data to understand the persistent differences in male and female performance.

Routine Activities and Criminal Victimization: The Significance of Gendered Spaces.

PubMed

Savard, Dennis M; Kelley, Thomas M; Merolla, David M

2017-07-01

Gender is arguably the most prominent correlate of criminal victimization. Few studies, however, examine gender-specific dynamics that might help advance criminology's understanding of the persistent gender gap in criminal victimization. We attempt to help fill this research void by examining data from the 2012 National Incident-Based Reporting System (NIBRS) through the lens of routine activity theory to investigate the relationship between "gendered spaces" and criminal victimization. We propose that gendered spaces constructed by people's routine activities may increase their exposure to motivated offenders, which in turn may increase their risk of victimization. Our findings appear to support our proposition and to shed new light on the nature of the victimization gender gap. The results showed that females were significantly more likely than males to be victimized at each of the three "feminine gendered spaces" (i.e., bank, shopping center, and grocery store). However, the relationship between gendered space and criminal victimization varied by crime type. Females were significantly more likely than males to be robbed at each of the three feminine gendered spaces. For sexual assault and aggravated assault, females were significantly more likely than males to be victimized at a "masculine gendered space" (i.e., bar/nightclub). For simple assault, females were significantly less likely than males to be victimized at two of the three feminine gendered spaces (i.e., bank and shopping center). Our findings appear to highlight the importance of gendered spaces in helping explain the gender gap in criminal victimization and suggest that future researchers should investigate how other gendered spaces formed by people's routine activities affect their risk of victimization.

Will Public Pre-K Really Close Achievement Gaps? Gaps in Prekindergarten Quality between Students and across States

ERIC Educational Resources Information Center

Valentino, Rachel

2018-01-01

Publicly funded pre-K is often touted as a means to narrow achievement gaps, but this goal is less likely to be achieved if poor and/or minority children do not, at a minimum, attend equal quality pre-K as their non-poor, non-minority peers. In this paper, I find large "quality gaps" in public pre-K between poor, minority students and…

Rank Regressions, Wage Distributions, and the Gender Gap.

ERIC Educational Resources Information Center

Fortin, Nicole M.; Lemieux, Thomas

1998-01-01

Current Population Survey data from 1979 and 1991 were used to decompose changes in the gender wage gap into three components: skill distribution, wage structure, and improvements in women's position. Relative wage gains by women may have been a source of increasing wage inequality among men. (SK)

Preparation of the spacer for narrow electrode gap configuration in ionization-based gas sensor

DOE Office of Scientific and Technical Information (OSTI.GOV)

Saheed, Mohamed Shuaib Mohamed; Mohamed, Norani Muti; Burhanudin, Zainal Arif

2012-09-26

Carbon nanotubes (CNTs) have started to be developed as the sensing element for ionization-based gas sensors due to the demand for improved sensitivity, selectivity, stability and other sensing properties beyond what can be offered by the conventional ones. Although these limitations have been overcome, the problems still remain with the conventional ionization-based gas sensors in that they are bulky and operating with large breakdown voltage and high temperature. Recent studies have shown that the breakdown voltage can be reduced by using nanostructured electrodes and narrow electrode gap. Nanostructured electrode in the form of aligned CNTs array with evenly distributed nanotipsmore » can enhance the linear electric field significantly. The later is attributed to the shorter conductivity path through narrow electrode gap. The paper presents the study on the design consideration in order to realize ionization based gas sensor using aligned carbon nanotubes array in an optimum sensor configuration with narrow electrode gap. Several deposition techniques were studied to deposit the spacer, the key component that can control the electrode gap. Plasma spray deposition, electron beam deposition and dry oxidation method were employed to obtain minimum film thickness around 32 {mu}m. For plasma spray method, sand blasting process is required in order to produce rough surface for strong bonding of the deposited film onto the surface. Film thickness, typically about 39 {mu}m can be obtained. For the electron beam deposition and dry oxidation, the film thickness is in the range of nanometers and thus unsuitable to produce the spacer. The deposited multilayer film consisting of copper, alumina and ferum on which CNTs array will be grown was found to be removed during the etching process. This is attributed to the high etching rate on the thin film which can be prevented by reducing the rate and having a thicker conductive copper film.« less

From motherhood penalties to husband premia: the new challenge for gender equality and family policy, lessons from Norway.

PubMed

Petersen, Trond; Penner, Andrew M; Høgsnes, Geir

2014-03-01

Given the key role that processes occurring in the family play in creating gender inequality, the family is a central focus of policies aimed at creating greater gender equality. We examine how family status affects the gender wage gap using longitudinal matched employer-employee data from Norway, 1979-96, a period with extensive expansion of family policies. The motherhood penalty dropped dramatically from 1979 to 1996. Among men the premia for marriage and fatherhood remained constant. In 1979, the gender wage gap was primarily due to the motherhood penalty, but by 1996 husband premia were more important than motherhood penalties.

Influence of socioeconomic status, wealth and financial empowerment on gender differences in health and healthcare utilization in later life: evidence from India.

PubMed

Roy, Kakoli; Chaudhuri, Anoshua

2008-05-01

Empirical studies from developed countries observe that women report worse health and higher healthcare utilization than men, but the health disadvantage diminishes with age; gender differences in self-rated health often vanish or are reversed in older ages. Comparable assessments of health during later life from developing countries are limited because of the lack of large-scale surveys that include older women. Our study attempts to address the shortage of developing country studies by examining gender differences in health and healthcare utilization among older adults in India. Both ordered and binary logit specifications were used to assess significant gender differences in subjective and objective health, and healthcare utilization after controlling for demographics, medical conditions, traditional indicators of socioeconomic status like education and income, and additional wealth indicators. The wealth indicators, measured by property ownership and economic independence, are regarded as financially empowering older adults to exercise greater control over their health and well-being. Data are drawn from a nationally representative decennial socioeconomic and health survey of 120,942 Indian households conducted during 1995-1996. The study sample comprises 34,086 older men and women aged >or= 60 years. Our results indicate that older women report worse self-rated health, higher prevalence of disabilities, marginally lower chronic conditions, and lower healthcare utilization than men. The health disadvantage and lower utilization among women cannot be explained by demographics and the differential distribution of medical conditions. While successive controls for education, income, and property ownership narrows the gender gap in both health and healthcare utilization, significant differentials still persist. Upon controlling for economic independence, gender differentials disappear or are reversed, with older women having equal or better health than otherwise similar men. Financial empowerment might confer older women the health advantage reflected in developed societies by enhancing a woman's ability to undertake primary and secondary prevention during the life course.

Instructional Strategies and Best Practices for Improving the Achievement Gap in Mathematics: An Exploratory Case Study

ERIC Educational Resources Information Center

Lord, Joey

2017-01-01

This qualitative exploratory case study focused on the achievement gap in mathematics that exists in one urban North Carolina middle school and the strategies used by school personnel to narrow this gap. The goal of this research was to determine effective instructional strategies and best practices used to engage students in learning that will…

Instructional Strategies and Best Practices to Narrow the Mathematics Achievement Gaps between African American, Hispanic, and European American Students

ERIC Educational Resources Information Center

Bolden, Felicia Mickles

2012-01-01

A persistent mathematics achievement gap between African American, Hispanic, and European American students at one elementary school was the focus of this investigation. The research questions of this single site case study involved understanding why an achievement gap exists, and to identify the instructional strategies and best practices used to…

The gender gap in sickness absence: long-term trends in eight European countries.

PubMed

Mastekaasa, Arne

2014-08-01

Most studies show that women have considerably higher rates of sickness absence than men, but little is known on how the gender gap has developed over time. Data are taken from the EU Labour Force Surveys. The dependent variable is whether the respondent reports being away from work the entire reference week or not. Trends are shown from 1980 onwards. Poisson regression is used to estimate relative risks for women vs. men, with various sets of control variables. Increasing gross differences in sickness absence between women and men are found in five countries: Spain, Ireland, France, Belgium and the UK. No trend in the gender gap is found in Netherlands and Portugal, and probably even in Italy. The trends in the gender gap have been largely the same for men and women without children at home as in the population as a whole. The trends are little affected by control for detailed occupation and industry. The gender gap in sickness absence has increased in five out of eight countries. This is not due to increased labour force participation by mothers of small children, and neither can it be explained as a result of changes in how women and men are distributed across occupations or industries. © The Author 2014. Published by Oxford University Press on behalf of the European Public Health Association. All rights reserved.

Effect of a crystal-melt interface on Taylor-vortex flow

NASA Technical Reports Server (NTRS)

Mcfadden, G. B.; Coriell, S. R.; Murray, B. T.; Glicksman, M. E.; Selleck, M. E.

1990-01-01

The linear stability of circular Couette flow between concentric infinite cylinders is considered for the case that the stationary outer cylinder is a crystal-melt interface rather than a rigid surface. A radial temperature difference is maintained across the liquid gap, and equations for heat transport in the crystal and melt phases are included to extend the ordinary formulation of this problem. The stability of this two-phase system depends on the Prandtl number. For small Prandtl number the linear stability of the two-phase system is given by the classical results for a rigid-walled system. For increasing values of the Prandtl number, convective heat transport becomes significant and the system becomes increasingly less stable. Previous results in a narrow-gap approximation are extended to the case of a finite gap, and both axisymmetric and nonaxisymmetric disturbance modes are considered. The two-phase system becomes less stable as the finite gap tends to the narrow-gap limit. The two-phase system is more stable to nonaxisymmetric modes with azimuthal wavenumber n = 1; the stability of these n = 1 modes is sensitive to the latent heat of fusion.

Daphnis Up Close

NASA Image and Video Library

2017-01-18

The wavemaker moon, Daphnis, is featured in this view, taken as NASA's Cassini spacecraft made one of its ring-grazing passes over the outer edges of Saturn's rings on Jan. 16, 2017. This is the closest view of the small moon obtained yet. Daphnis (5 miles or 8 kilometers across) orbits within the 42-kilometer (26-mile) wide Keeler Gap. Cassini's viewing angle causes the gap to appear narrower than it actually is, due to foreshortening. The little moon's gravity raises waves in the edges of the gap in both the horizontal and vertical directions. Cassini was able to observe the vertical structures in 2009, around the time of Saturn's equinox (see PIA11654). Like a couple of Saturn's other small ring moons, Atlas and Pan, Daphnis appears to have a narrow ridge around its equator and a fairly smooth mantle of material on its surface -- likely an accumulation of fine particles from the rings. A few craters are obvious at this resolution. An additional ridge can be seen further north that runs parallel to the equatorial band. Fine details in the rings are also on display in this image. In particular, a grainy texture is seen in several wide lanes which hints at structures where particles are clumping together. In comparison to the otherwise sharp edges of the Keeler Gap, the wave peak in the gap edge at left has a softened appearance. This is possibly due to the movement of fine ring particles being spread out into the gap following Daphnis' last close approach to that edge on a previous orbit. A faint, narrow tendril of ring material follows just behind Daphnis (to its left). This may have resulted from a moment when Daphnis drew a packet of material out of the ring, and now that packet is spreading itself out. The image was taken in visible (green) light with the Cassini spacecraft narrow-angle camera. The view was acquired at a distance of approximately 17,000 miles (28,000 kilometers) from Daphnis and at a Sun-Daphnis-spacecraft, or phase, angle of 71 degrees. Image scale is 551 feet (168 meters) per pixel. http://photojournal.jpl.nasa.gov/catalog/PIA21056

The social context of smoking: A qualitative study comparing smokers of high versus low socioeconomic position.

PubMed

Paul, Christine L; Ross, Samantha; Bryant, Jamie; Hill, Wesley; Bonevski, Billie; Keevy, Nichola

2010-04-27

The reductions in smoking prevalence in a number of industrialised countries are accompanied by a strong social gap and associated health inequality. Groups such as the World Health Organisation emphasise the importance of exploring potential causal factors for smoking such as socio-economic context & position. There has been little effort to compare the social context of smoking for smokers of high versus lower socio-economic position (SEP) to consider how tobacco control efforts might reduce smoking-related health inequality. Purposive sampling was used to recruit participants for eight focus groups. The groups were segregated by age, gender and SEP. Samples were selected from suburbs within the Sydney metropolitan area defined as either high or low SEP based on the Socio Economic Index for Areas. Emergent themes were analysed according to Poland's six dimensions of the social context of smoking. Differences according to SEP, age group and gender were explored. While there was commonality in social experiences for smokers across groups, some important aspects of the social context of smoking varied. Smokers of high SEP appeared to be aware of particular social pressures not to smoke on five of the six social context dimensions (power, body, identity, consumption and place). Not only were some of those pressures absent for low SEP participants, there were additional influences within the social context which were pro-smoking. In order to narrow the health inequality gap associated with smoking, it is important to take account of the more pro-smoking social context experienced by low SEP smokers. Suggestions are made regarding social marketing campaigns, support for quit assistance and approaches to the regulation of smoking which may assist in minimising smoking-related health inequality.

Women planning to major in computer science: Who are they and what makes them unique?

NASA Astrophysics Data System (ADS)

Lehman, Kathleen J.; Sax, Linda J.; Zimmerman, Hilary B.

2016-12-01

Despite the current growing popularity of the computer science (CS) major, women remain sorely underrepresented in the field, continuing to earn only 18% of bachelor's degrees. Understanding women's low rates of participation in CS is important given that the demand for individuals with CS training has grown sharply in recent years. Attracting and retaining more women to high-paying fields like CS may also help narrow the gender pay gap. Further, it is important that women participate in developing new technology so that technology advances serve the needs of both women and men. This paper explores the background characteristics, career aspirations, and self-perceptions of 1636 female first-year college students in the United States who intend to major in CS and compares them with 4402 male CS aspirants as well as with 26,642 women planning to major in other STEM sub-fields. The findings reveal a unique profile of women who pursue the CS major and notes many significant differences between men and women in CS and between women in CS and those in other STEM fields. For instance, women in CS tend to earn lower high school grades than women in other STEM fields, but earn higher SAT verbal scores. They also rate themselves higher than men in CS and women in other STEM fields on measures of their artistic ability, but rate themselves lower on other self-ratings, including academic and leadership ability. Further, women in CS are more likely to be undecided in their career plans than men in CS and women in other STEM fields. Understanding the unique characteristics of women in CS will help inform policies and recruitment programs designed to address the gender gap in computing.

Valuing both critical and creative thinking in clinical practice: narrowing the research-practice gap?

PubMed

Seymour, Beth; Kinn, Sue; Sutherland, Norrie

2003-05-01

Nurturing critical thinking skills in the classroom is considered an important educational activity. It is believed that critical thinking skills are transferable and that they can be applied in practice when appraising, evaluating and implementing research. That more nurses than ever before have been judged academically knowledgeable in research has not guaranteed the transfer of such knowledge to practice. This paper discusses some of the reasons for the failure to narrow the gap between research and practice. In particular we argue that, if nurses are encouraged to develop creative and generative thinking alongside their critical thinking skills, then the art of nursing will have fuller representation in education, research and practice. The successful development of critical thinking skills for academic purposes does not necessarily mean that these skills are used in practice in relation either to research or clinical decision-making. This suggests that the transferability of critical thinking skills is less than straightforward. Indeed, there has been little narrowing of the research-practice gap since students started to learn critical thinking for academic purposes. However, we propose that thinking skills can be encouraged in the context of practice and that regular educational events, such as journal clubs, can contribute to developing critical thinking in the practice environment. The research-practice gap will reduce only if research becomes part of practitioners' ideology, which includes the art and science of nursing. Critical and creative thinking are prerequisites to narrowing the disjuncture between research and practice, and we suggest that educators and practitioners explore structured ways of meeting together to appraise literature as a possible means of making use of their thinking and knowledge in clinical practice.

Optical properties of A Fe 2 As 2 ( A = Ca , Sr, and Ba) single crystals

DOE PAGES

Dai, Y. M.; Akrap, Ana; Bud'ko, S. L.; ...

2016-11-23

The detailed optical properties have been determined for the iron-based materials A Fe 2 As 2 , where A = Ca , Sr, and Ba, for light polarized in the iron-arsenic (a-b) planes over a wide frequency range, above and below the magnetic and structural transitions at T N = 138 , 195, and 172 K, respectively. The real and imaginary parts of the complex conductivity are fit simultaneously using two Drude terms in combination with a series of oscillators. Above T N, the free-carrier response consists of a weak, narrow Drude term, and a strong, broad Drude term, both of which show only a weak temperature dependence. Below T N there is a slight decrease of the plasma frequency but a dramatic drop in the scattering rate for the narrow Drude term, and for the broad Drude term there is a significant decrease in the plasma frequency, while the decrease in the scattering rate, albeit significant, is not as severe. The small values observed for the scattering rates for the narrow Drude term for Tmore » $$\\ll$$ T N may be related to the Dirac conelike dispersion of the electronic bands. Below T N new features emerge in the optical conductivity that are associated with the reconstruction Fermi surface and the gapping of bands at Δ 1 ≃ 45 – 80 meV, and Δ 2 ≃ 110 – 210 meV. In conclusion, the reduction in the spectral weight associated with the free carriers is captured by the gap structure; specifically, the spectral weight from the narrow Drude term appears to be transferred into the low-energy gap feature, while the missing weight from the broad term shifts to the high-energy gap.« less

Time Trends and Policy Gaps: The Case of Alcohol Misuse Among Adolescents in Lebanon.

PubMed

Ghandour, Lilian; Afifi, Rima; Fares, Sonia; El Salibi, Noura; Rady, Alissar

2015-01-01

Monitoring studies are crucial for informing and reforming local policies. Using the Lebanon 2005 and 2011 Global School-based Student Health Surveys (GSHS), alcohol time trends were described, policy gaps were identified, and harm reduction policy recommendations were made. In 2005 and 2011, 100 (n = 5109 students) and 44 (n = 2784 students) middle schools were surveyed, respectively. Self-reported cross-sectional data on alcohol use among 7-9th graders in private and public schools was collected including 30-day prevalence, lifetime drunkenness, alcohol-related problems, and sources of alcohol. In 2011, the majority (87%) had alcohol before turning 14. Between 2005 and 2011, past 30-day alcohol use had increased by 40% and lifetime drunkenness by 50% in the total sample (122% among females with a narrowing in the gender gap). Drinking was regular for more than a third of the past 30-day drinkers (drank two or more drinks on the days they drank). Male adolescents were more likely to obtain alcohol from "stores" or "through their friends" whereas females' main source was their "family." One in twenty reported experiencing alcohol-related problems (e.g., getting into fights with family/friends and skipping school). Conclusion/Importance: Evidence-informed policy implications include enforcing a minimum legal drinking age, regulating alcohol advertising, and marketing particularly those targeting youth and women, and ensuring the availability of youth-friendly services. Public messages to increase awareness among all stakeholders including youth, their parents, and larger community are also needed.

Conditions and phase shift of fluid resonance in narrow gaps of bottom mounted caissons

NASA Astrophysics Data System (ADS)

Zhu, Da-tong; Wang, Xing-gang; Liu, Qing-jun

2017-12-01

This paper studies the viscid and inviscid fluid resonance in gaps of bottom mounted caissons on the basis of the plane wave hypothesis and full wave model. The theoretical analysis and the numerical results demonstrate that the condition for the appearance of fluid resonance in narrow gaps is kh=(2 n+1)π ( n=0, 1, 2, 3, …), rather than kh= nπ ( n=0, 1, 2, 3, …); the transmission peaks in viscid fluid are related to the resonance peaks in the gaps. k and h stand for the wave number and the gap length. The combination of the plane wave hypothesis or the full wave model with the local viscosity model can accurately determine the heights and the locations of the resonance peaks. The upper bound for the appearance of fluid resonance in gaps is 2 b/ L<1 (2 b, grating constant; L, wave length) and the lower bound is h/ b≤1. The main reason for the phase shift of the resonance peaks is the inductive factors. The number of resonance peaks in the spectrum curve is dependent on the ratio of the gap length to the grating constant. The heights and the positions of the resonance peaks predicted by the present models agree well with the experimental data.

Gender Earnings Gap among Young European Higher Education Graduates

ERIC Educational Resources Information Center

Garcia-Aracil, Adela

2007-01-01

This paper examines the composition of the gender earnings gap among young European higher education graduates, with a particular focus on competencies controlling for individual background and job characteristics. The results show that much of the female worker's earnings advantage can be explained by job characteristics. With respect to the…

Gender Gaps in Cincinnati Public Schools, Then and Now.

ERIC Educational Resources Information Center

Bertaux, Nancy E.; Gerring, Lori F.

1994-01-01

Explores the gender gap in salaries and promotions among Cincinnati (Ohio) public school teachers from the beginning of the school system in 1830 to 1991. Current data show that, although increasing numbers of women are being promoted to principal, the proportion still lags behind that of men. (SLD)

How Does Collective Bargaining Affect the Gender Pay Gap?

ERIC Educational Resources Information Center

Elvira, Marta M.; Saporta, Ishak

2001-01-01

Analysis of Industry Wage Survey data from nine manufacturing industries indicated that unionization made the gender wage gap considerably smaller in six industries. In the other three, the overall proportion of women in the industry and the characteristics of unions may contribute to the disparity. (Contains 68 references.) (SK)

Gender Gap Linked to Differential Socialization for High-Achieving Senior Mathematics Students.

ERIC Educational Resources Information Center

Campbell, James R.; Beaudry, Jeffrey S.

1998-01-01

Examined whether 11th-grade girls and boys enrolled in advanced mathematics courses nationwide were socialized in similar ways, using Campbell's differential socialization paradigm. Results uncovered a gender gap favoring boys. Self-imposed pressure and persistence had important direct effects on achievement. Self-concept had important direct…

Impact of Scaffolding and Question Structure on the Gender Gap

ERIC Educational Resources Information Center

Dawkins, Hillary; Hedgeland, Holly; Jordan, Sally

2017-01-01

We address previous hypotheses about possible factors influencing the gender gap in attainment in physics. Specifically, previous studies claim that scaffolding may preferentially benefit female students, and we present some alternative conclusions surrounding this hypothesis. By taking both student attainment level and the degree of question…

Characterizing the gender gap in introductory physics

NASA Astrophysics Data System (ADS)

Kost, Lauren E.; Pollock, Steven J.; Finkelstein, Noah D.

2009-06-01

Previous research [S. J. Pollock , Phys. Rev. ST Phys. Educ. Res. 3, 1 (2007)] showed that despite the use of interactive engagement techniques, the gap in performance between males and females on a conceptual learning survey persisted from pretest to post-test at the University of Colorado at Boulder. Such findings were counter to previously published work [M. Lorenzo , Am. J. Phys. 74, 118 (2006)]. This study begins by identifying a variety of other gender differences. There is a small but significant difference in the course grades of males and females. Males and females have significantly different prior understandings of physics and mathematics. Females are less likely to take high school physics than males, although they are equally likely to take high school calculus. Males and females also differ in their incoming attitudes and beliefs about physics. This collection of background factors is analyzed to determine the extent to which each factor correlates with performance on a conceptual post-test and with gender. Binned by quintiles, we observe that males and females with similar pretest scores do not have significantly different post-test scores (p>0.2) . The post-test data are then modeled using two regression models (multiple regression and logistic regression) to estimate the gender gap in post-test scores after controlling for these important prior factors. These prior factors account for about 70% of the observed gender gap. The results indicate that the gender gap exists in interactive physics classes at our institution but is largely associated with differences in previous physics and math knowledge and incoming attitudes and beliefs.

Maintaining distinctions under threat: heterosexual men endorse the biological theory of sexuality when equality is the norm.

PubMed

Falomir-Pichastor, Juan M; Hegarty, Peter

2014-12-01

According to social identity theory, group members sometimes react to threats to their group's distinctiveness by asserting the distinctiveness of their group. In four studies (n = 261) we tested the hypothesis that heterosexual men with a greater propensity to be threatened by homosexuality would react to egalitarian norms by endorsing biological theories of sexuality. Heterosexual men, but not women, with narrow prototypes of their gender in-group endorsed biological theories the most (Study 1). Heterosexual men with higher gender self-esteem, with heterosexist attitudes, who endorsed traditional gender roles, and with narrow prototypes of their gender in-group, endorsed the biological theories more when egalitarian norms rather than anti-egalitarian norms (Studies 2 and 3) or pro-minority ideologies that emphasized group differences (Study 4) were made salient. These findings show group-level reactive distinctiveness among members of a high-status group in a context of threat to the unique privileges that they once enjoyed. © 2013 The British Psychological Society.

Zero-gap semiconductor to excitonic insulator transition in Ta2NiSe5

PubMed Central

Lu, Y. F.; Kono, H.; Larkin, T. I.; Rost, A. W.; Takayama, T.; Boris, A. V.; Keimer, B.; Takagi, H.

2017-01-01

The excitonic insulator is a long conjectured correlated electron phase of narrow-gap semiconductors and semimetals, driven by weakly screened electron–hole interactions. Having been proposed more than 50 years ago, conclusive experimental evidence for its existence remains elusive. Ta2NiSe5 is a narrow-gap semiconductor with a small one-electron bandgap EG of <50 meV. Below TC=326 K, a putative excitonic insulator is stabilized. Here we report an optical excitation gap Eop ∼0.16 eV below TC comparable to the estimated exciton binding energy EB. Specific heat measurements show the entropy associated with the transition being consistent with a primarily electronic origin. To further explore this physics, we map the TC–EG phase diagram tuning EG via chemical and physical pressure. The dome-like behaviour around EG∼0 combined with our transport, thermodynamic and optical results are fully consistent with an excitonic insulator phase in Ta2NiSe5. PMID:28205553

Cross-disciplinary research in cancer: an opportunity to narrow the knowledge–practice gap

PubMed Central

Urquhart, R.; Grunfeld, E.; Jackson, L.; Sargeant, J.; Porter, G.A.

2013-01-01

Health services researchers have consistently identified a gap between what is identified as “best practice” and what actually happens in clinical care. Despite nearly two decades of a growing evidence-based practice movement, narrowing the knowledge–practice gap continues to be a slow, complex, and poorly understood process. Here, we contend that cross-disciplinary research is increasingly relevant and important to reducing that gap, particularly research that encompasses the notion of transdisciplinarity, wherein multiple academic disciplines and non-academic individuals and groups are integrated into the research process. The assimilation of diverse perspectives, research approaches, and types of knowledge is potentially effective in helping research teams tackle real-world patient care issues, create more practice-based evidence, and translate the results to clinical and community care settings. The goals of this paper are to present and discuss cross-disciplinary approaches to health research and to provide two examples of how engaging in such research may optimize the use of research in cancer care. PMID:24311951

Cross-disciplinary research in cancer: an opportunity to narrow the knowledge-practice gap.

PubMed

Urquhart, R; Grunfeld, E; Jackson, L; Sargeant, J; Porter, G A

2013-12-01

Health services researchers have consistently identified a gap between what is identified as "best practice" and what actually happens in clinical care. Despite nearly two decades of a growing evidence-based practice movement, narrowing the knowledge-practice gap continues to be a slow, complex, and poorly understood process. Here, we contend that cross-disciplinary research is increasingly relevant and important to reducing that gap, particularly research that encompasses the notion of transdisciplinarity, wherein multiple academic disciplines and non-academic individuals and groups are integrated into the research process. The assimilation of diverse perspectives, research approaches, and types of knowledge is potentially effective in helping research teams tackle real-world patient care issues, create more practice-based evidence, and translate the results to clinical and community care settings. The goals of this paper are to present and discuss cross-disciplinary approaches to health research and to provide two examples of how engaging in such research may optimize the use of research in cancer care.

Stepping out of the caveman's shadow: nations' gender gap predicts degree of sex differentiation in mate preferences.

PubMed

Zentner, Marcel; Mitura, Klaudia

2012-10-01

An influential explanation for gender differences in mating strategies is that the sex-specific reproductive constraints faced by human ancestors shaped these differences. Other theorists have emphasized the role of societal factors, hypothesizing, for example, that gender differences in mate preferences should wane in gender-equal societies. However, findings have been ambiguous. Using recent data and a novel measure of gender equality, we revisited the role of gender parity in gender differentiation for mate preferences. In the first study, 3,177 participants from 10 nations with a gradually decreasing Global Gender Gap Index (GGI) provided online ratings of the desirability of mate attributes with reportedly evolutionary origins. In the second study, GGI scores were related to gender differences in mate preferences previously reported for 8,953 participants from 31 nations (Buss, 1989). Both studies show that gender differences in mate preferences with presumed evolutionary roots decline proportionally to increases in nations' gender parity.

Adding Some Gas Can Completely Change How an Object in a Liquid-Filled Housing Responds to Vibration

NASA Astrophysics Data System (ADS)

Torczynski, J. R.; O'Hern, T. J.; Clausen, J. R.

2015-11-01

Adding a little gas can completely change the motion of an object in a liquid-filled housing during vibration. A common system exhibiting this behavior is a spring-supported piston in a liquid-filled cylinder, where the gaps between them are narrow and depend on the piston position. When gas is absent, the piston's vibrational response is highly overdamped due to forcing viscous liquid through narrow gaps. When a small amount of gas is added, Bjerknes forces cause some of the gas to migrate below the piston. The resulting two gas regions form a pneumatic spring that enables the liquid to move with the piston, with the result that very little liquid is forced through the narrow gaps. This ``Couette mode'' has low damping and thus has a strong resonance near the frequency given by the pneumatic spring constant and the piston mass. At this frequency, the piston response is large, and the nonlinearity from the gap geometry produces a net force on the piston. This ``rectified'' force can be many times the piston's weight and can cause the piston to compress its supporting spring. Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kong, Lingping; Liu, Gang; Gong, Jue

The organic-inorganic hybrid lead trihalide perovskites have been emerging as the most attractive photovoltaic materials. As regulated by Shockley-Queisser theory, a formidable materials science challenge for improvement to the next level requires further band-gap narrowing for broader absorption in solar spectrum, while retaining or even synergistically prolonging the carrier lifetime, a critical factor responsible for attaining the near-band-gap photovoltage. Herein, by applying controllable hydrostatic pressure, we have achieved unprecedented simultaneous enhancement in both band-gap narrowing and carrier-lifetime prolongation (up to 70% to -100% increase) under mild pressures at -0.3 GPa. The pressure-induced modulation on pure hybrid perovskites without introducing anymore » adverse chemical or thermal effect clearly demonstrates the importance of band edges on the photon-electron interaction and maps a pioneering route toward a further increase in their photovoltaic performance.« less

Narrow and Deep Fano Resonances in a Rod and Concentric Square Ring-Disk Nanostructures

PubMed Central

Huo, Yanyan; Jia, Tianqing; Zhang, Yi; Zhao, Hua; Zhang, Shian; Feng, Donghai; Sun, Zhenrong

2013-01-01

Localized surface plasmon resonances (LSPRs) in metallic nanostructures have been studied intensely in the last decade. Fano interference is an important way to decrease the resonance linewidth and enhance the spectral detection resolution, but realizing a Fano lineshape with both a narrow linewidth and high spectral contrast-ratio is still challenging. Here we propose a metallic nanostructure consisting of a concentric square ring-disk (CSRD) nanostructure and an outside nanorod. Fano linewidth and spectral contrast ratio can be actively manipulated by adjusting the gap between the nanorod and CSRD, and by adjusting the gap between the ring and disk in CSRD. When the gap size in CSRD is reduced to 5 nm, the quadrupolar Fano linewidth is of 0.025 eV, with a contrast ratio of 80%, and the figure of merit reaches 15. PMID:24064596

Omnidirectional narrow optical filters for circularly polarized light in a nanocomposite structurally chiral medium.

PubMed

Avendaño, Carlos G; Palomares, Laura O

2018-04-20

We consider the propagation of electromagnetic waves throughout a nanocomposite structurally chiral medium consisting of metallic nanoballs randomly dispersed in a structurally chiral material whose dielectric properties can be represented by a resonant effective uniaxial tensor. It is found that an omnidirectional narrow pass band and two omnidirectional narrow band gaps are created in the blue optical spectrum for right and left circularly polarized light, as well as narrow reflection bands for right circularly polarized light that can be controlled by varying the light incidence angle and the filling fraction of metallic inclusions.

Gender, Parenthood and Wage Differences: The Importance of Time-Consuming Job Characteristics.

PubMed

Magnusson, Charlotta; Nermo, Magnus

2017-01-01

Using data from the Swedish Level of Living Survey (2000, 2010), we investigate how the gender wage gap varies with occupational prestige and family status and also examine the extent to which this gap is explained by time-consuming working conditions. In addition, we investigate whether there is an association between parenthood, job characteristics and wage (as differentiated by gender). The analyses indicate that there are gender differences regarding prestige-based pay-offs among parents that are partly explained by fathers' greater access to employment characterized by time-consuming conditions. Separate analyses for men and women demonstrate the presence of a marriage wage premium for both genders, although only men have a parenthood wage premium. This fatherhood premium is however only present in high-prestigious occupations. Compared with childless men, fathers are also more advantaged in terms of access to jobs with time-consuming working conditions, but the wage gap between fathers and childless men is not explained by differences in access to such working conditions.

The Opt-In Revolution? Contraception and the Gender Gap in Wages.

PubMed

Bailey, Martha J; Hershbein, Brad; Miller, Amalia R

2012-07-01

Decades of research on the US gender gap in wages describes its correlates, but little is known about why women changed their career paths in the 1960s and 1970s. This paper explores the role of "the Pill" in altering women's human capital investments and its ultimate implications for life-cycle wages. Using state-by-birth-cohort variation in legal access, we show that younger access to the Pill conferred an 8 percent hourly wage premium by age 50. Our estimates imply that the Pill can account for 10 percent of the convergence of the gender gap in the 1980s and 30 percent in the 1990s.

The Opt-In Revolution? Contraception and the Gender Gap in Wages†

PubMed Central

Bailey, Martha J.; Hershbein, Brad

2013-01-01

Decades of research on the US gender gap in wages describes its correlates, but little is known about why women changed their career paths in the 1960s and 1970s. This paper explores the role of “the Pill” in altering women’s human capital investments and its ultimate implications for life-cycle wages. Using state-by-birth-cohort variation in legal access, we show that younger access to the Pill conferred an 8 percent hourly wage premium by age 50. Our estimates imply that the Pill can account for 10 percent of the convergence of the gender gap in the 1980s and 30 percent in the 1990s. PMID:23785566

Emergency Medicine Gender-specific Education.

PubMed

Ashurst, John V; McGregor, Alyson J; Safdar, Basmah; Weaver, Kevin R; Quinn, Shawn M; Rosenau, Alex M; Goyke, Terrence E; Roth, Kevin R; Greenberg, Marna R

2014-12-01

The 2014 Academic Emergency Medicine consensus conference has taken the first step in identifying gender-specific care as an area of importance to both emergency medicine (EM) and research. To improve patient care, we need to address educational gaps in this area concurrent with research gaps. In this article, the authors highlight the need for sex- and gender-specific education in EM and propose guidelines for medical student, resident, and faculty education. Specific examples of incorporating this content into grand rounds, simulation, bedside teaching, and journal club sessions are reviewed. Future challenges and strategies to fill the gaps in the current education model are also described. © 2014 by the Society for Academic Emergency Medicine.

"Mind the Gap": An Empirical Study of the Gap between Intention and Actual Usage of Corporate E-Learning Programmes in the Financial Industry

ERIC Educational Resources Information Center

Luor, Tainyi; Hu, Changya; Lu, His-Peng

2009-01-01

While numerous previous studies have focused on the use of some corporate e-learning programmes (CELP), little is known about the difference between users' pre-installation reactions to CELP and user's post-installation reactions to CELP. This study narrows the above gap with two investigations into a financial company's CELP. In the…

Stall in Women's Real Wage Growth Slows Progress in Closing the Wage Gap. Briefing Paper.

ERIC Educational Resources Information Center

Hartmann, Heidi; Whittaker, Julie

Since 1979, the wage gap between women and men has narrowed significantly, falling by more than 10 percent overall. The closing of the wage gap has slowed considerably in the 1990's, however, with women's real wages (adjusted for inflation) stagnating in recent year and men's wages continuing to decline. The lack of growth in both women's and…

The Persistent Gap: Understanding Male-Female Salary Differentials amongst Canadian Academic Staff. CAUT Equity Review. Number 5

ERIC Educational Resources Information Center

Canadian Association of University Teachers, 2011

2011-01-01

There has been a long-standing concern amongst policymakers, economists, and trade unions over the persistent earnings gap between men and women in the Canadian labour market. Although this gap has narrowed over time, women's average hourly wages still remain about 16% lower than that earned by men. The reasons for this inequality in male and…

Crossovers from excitons to plasmons in narrow-gap carbon nanotubes

NASA Astrophysics Data System (ADS)

Uryu, Seiji

2018-06-01

Plasmons and excitons, bound states of electrons and holes, are collective charge excitations in solids. In this study, we numerically show that in most metallic carbon nanotubes, which are called narrow-gap carbon nanotubes, excitons cross over to plasmons as the wave vector increases. This indicates that resonance with the excitons changes to that with the plasmons by changing the nanotube length, which can explain the origin of observed peaks in the terahertz or far-infrared region in the optical absorption spectra of metallic carbon nanotubes. In the crossovers from excitons to plasmons, a depolarization effect on the many-body wave functions of the plasmons and excitons is clarified.

Overcoming the gender gap: increasing gender diversity, scientific scholarship and social legitimacy of our profession.

PubMed

Golding, Penny M

2015-06-01

This article examines a recent college review of the gender distribution on Royal Australian and New Zealand College of Psychiatry (RANZCP) committees. It includes an analysis of the key reasons we should seek to address the gender disparity in our committees and conference speakers and strategies by which to achieve this. The gender gap in Royal Australian and New Zealand College of Psychiatry leadership influences the perception, social legitimacy, problem-solving capacity and scientific direction of our field. We could improve equality in our college committees and conference speakers by adopting strategies used by governments and other professional associations. © The Royal Australian and New Zealand College of Psychiatrists 2015.

Using subjective expectations to forecast longevity: do survey respondents know something we don't know?

PubMed

Perozek, Maria

2008-02-01

Old-age mortality is notoriously difficult to predict because it requires not only an understanding of the process of senescence-which is influenced by genetic, environmental, and behavioral factors-but also a prediction of how these factors will evolve. In this paper I argue that individuals are uniquely qualified to predict their own mortality based on their own genetic background, as well as environmental and behavioral risk factors that are often known only to the individual. Given this private information, individuals form expectations about survival probabilities that may provide additional information to demographers and policymakers in their challenge to predict mortality. From expectations data from the 1992 Health and Retirement Study (HRS), I construct subjective, cohort life tables that are shown to predict the unusual direction of revisions to U.S. life expectancy by gender between 1992 and 2004: that is, for these cohorts, the Social Security Actuary (SSA) raised male life expectancy in 2004 and at the same lowered female life expectancy, narrowing the gender gap in longevity by 25% over this period. Further, although the subjective life expectancies for men appear to be roughly in line with the 2004 life tables, the subjective expectations of women suggest that female life expectancies estimated by the SSA might still be on the high side.

Accelerating Improvement and Narrowing Gaps: Trends in Patients' Experiences with Hospital Care Reflected in HCAHPS Public Reporting.

PubMed

Elliott, Marc N; Cohea, Christopher W; Lehrman, William G; Goldstein, Elizabeth H; Cleary, Paul D; Giordano, Laura A; Beckett, Megan K; Zaslavsky, Alan M

2015-12-01

Measure HCAHPS improvement in hospitals participating in the second and fifth years of HCAHPS public reporting; determine whether change is greater for some hospital types. Surveys from 4,822,960 adult inpatients discharged July 2007-June 2008 or July 2010-June 2011 from 3,541 U.S. hospitals. Linear mixed-effect regression models with fixed effects for time, patient mix, and hospital characteristics (bedsize, ownership, Census division, teaching status, Critical Access status); random effects for hospitals and hospital-time interactions; fixed-effect interactions of hospital characteristics and patient characteristics (gender, health, education) with time predicted HCAHPS measures correcting for regression-to-the-mean biases. National probability sample of adult inpatients in any of four approved survey modes. HCAHPS scores increased by 2.8 percentage points from 2008 to 2011 in the most positive response category. Among the middle 95 percent of hospitals, changes ranged from a 5.1 percent decrease to a 10.2 percent gain overall. The greatest improvement was in for-profit and larger (200 or more beds) hospitals. Five years after HCAHPS public reporting began, meaningful improvement of patients' hospital care experiences continues, especially among initially low-scoring hospitals, reducing some gaps among hospitals. © Health Research and Educational Trust.

The Gender Wage Gap: A Comparison of Australia and Canada.

ERIC Educational Resources Information Center

Kidd, Michael P.; Shannon, Michael

1996-01-01

Data from the 1989 Canadian Labour Market Activity Survey and 1989-90 Australian Income Distribution Survey suggest that a lower rate of return to education and labor market experience and a lower level of wage inequality in Australia are responsible for the smaller gender wage gap in Australia than in Canada. (SK)

Representation and Salary Gaps by Race-Ethnicity and Gender at Selective Public Universities

ERIC Educational Resources Information Center

Li, Diyi; Koedel, Cory

2017-01-01

We use data from 2015-2016 to document faculty representation and wage gaps by race-ethnicity and gender in six fields at selective public universities. Consistent with widely available information, Black, Hispanic, and female professors are underrepresented and White and Asian professors are overrepresented in our data. Disadvantaged minority and…

Inter-Industry Wage Differentials and the Gender Wage Gap: An Identification Problem.

ERIC Educational Resources Information Center

Horrace, William C.; Oaxaca, Ronald L.

2001-01-01

States that a method for estimating gender wage gaps by industry yields estimates that vary according to arbitrary choice of omitted reference groups. Suggests alternative methods not susceptible to this problem that can be applied to other contexts, such as racial, union/nonunion, and immigrant/native wage differences. (SK)

Teachers and the Gender Gaps in Student Achievement. NBER Working Paper No. 11660

ERIC Educational Resources Information Center

Dee, Thomas S.

2005-01-01

In the United States, girls outperform boys in measures of reading achievement while generally underperforming in science and mathematics. One major class of explanations for these gaps involves the gender-based interactions between students and teachers (e.g., role-model and Pygmalion effects). However, the evidence on whether these interactions…

The STEM Pathway for Women: What Has Changed?

ERIC Educational Resources Information Center

Heilbronner, Nancy N.

2013-01-01

In previous decades, researchers have identified a gender gap in the careers and academic achievement of men and women in science, technology, engineering, and mathematics (STEM). Recently, it has been suggested that some of these gender gaps no longer exist; however, the picture is more nuanced, for women are represented well in some STEM fields…

Gender Wage Disparities among the Highly Educated

ERIC Educational Resources Information Center

Black, Dan A.; Haviland, Amelia M.; Sanders, Seth G.; Taylor, Lowell J.

2008-01-01

We examine gender wage disparities for four groups of college-educated women--black, Hispanic, Asian, and non-Hispanic white--using the National Survey of College Graduates. Raw log wage gaps, relative to non-Hispanic white male counterparts, generally exceed -0.30. Estimated gaps decline to between -0.08 and -0.19 in nonparametric analyses that…

How Does Gender Play a Role in the Earnings Gap? An Update.

ERIC Educational Resources Information Center

Boraas, Stephanie; Rodgers, William M., III

2003-01-01

In 1999, women earned 77% as much as men. Current Population Survey data indicate that personal choices, occupational crowding, and discrimination contribute to the gender gap. However, the high proportion of women in an occupation is the largest contributor to the salary differential. (Contains 16 references.) (Author/JOW)

Racial and Gender Gaps in Academic Achievement. Report Summary.

ERIC Educational Resources Information Center

Dulaney, Chuck; Banks, Karen

This report summarizes the level of academic achievement, and the extent of racial and gender gaps in that achievement, of students in North Carolina's Wake County Public School System (WCPSS). The comparison was conducted using 1993 End-of-Grade (EOG) tests; low income group EOG test performance; 1993 writing tests and high school writing…

"Quietly Stripping the Pastels": The Undergraduate Gender Gap

ERIC Educational Resources Information Center

Yakaboski, Tamara

2011-01-01

The "new" gender gap refers to women as the majority of the undergraduate student population, and the national newspaper discourse on this trend represents a value system that translates into societal implications and potential policy. The media portrays a "boy crisis" with male students as the victims of female students' enrollment success. The…

The Gender Gap in Yearly Earnings: Can Vocational Education Help?

ERIC Educational Resources Information Center

Gray, Kenneth

1993-01-01

Recent research conducted by K. Gray and N. Huang (1993) provided new insights into the gender gap in yearly earnings. These researchers tested Terrell's (1992) hypothesis that the issue now is not equal educational opportunity, but inequality in the distribution of women among all occupations. The study examined the variables that affected the…

Quantifying the Gender Gap in Science Interests

ERIC Educational Resources Information Center

Baram-Tsabari, Ayelet; Yarden, Anat

2011-01-01

Nearly 5,000 self-generated science-related K-12 students' questions, classified into seven science subjects, were used to quantitatively measure the gender gap in science interests and its change with age. In this data set, a difference between boys' and girls' science interests did not exist during early childhood, but increased over 20-fold by…

Understanding Science Achievement Gaps by Race/Ethnicity and Gender in Kindergarten and First Grade

ERIC Educational Resources Information Center

Curran, F. Chris; Kellogg, Ann T.

2016-01-01

Disparities in science achievement across race and gender have been well documented in secondary and postsecondary school; however, the science achievement gap in the early years of elementary school remains understudied. We present findings from the recently released Early Childhood Longitudinal Study, Kindergarten Class of 2010-2011 that…

Fewer Diplomas for Men: The Influence of College Experiences on the Gender Gap in College Graduation

ERIC Educational Resources Information Center

Ewert, Stephanie

2012-01-01

Women's advantage in college graduation is evident at all socioeconomic levels and for most racial and ethnic groups. This study examines whether college experiences critical to persistence to graduation, including college major, attendance patterns, social integration, and academic performance, contribute to this gender gap in graduation.…

"Citizen Jane": Rethinking Design Principles for Closing the Gender Gap in Computing.

ERIC Educational Resources Information Center

Raphael, Chad

This paper identifies three rationales in the relevant literature for closing the gender gap in computing: economic, cultural and political. Each rationale implies a different set of indicators of present inequalities, disparate goals for creating equality, and distinct principles for software and web site design that aims to help girls overcome…

Developmental interventions to address the STEM gender gap: exploring intended and unintended consequences.

PubMed

Liben, Lynn S; Coyle, Emily F

2014-01-01

Women and girls in the United States continue to be underrepresented in STEM, particularly in engineering and technology fields. This gap has been attracting recent attention from those motivated to ensure that girls and women have access to a full range of personally satisfying careers as well as from those concerned with developing a rich talent pool to meet national workforce needs. This chapter is focused on interventions that have been designed to address this STEM gender gap. We begin by documenting the STEM gender gap and then review change mechanisms emerging from theories of gender development that may be harnessed in intervention efforts. In addition, we pro vide a taxonomy of intervention goals which we then use to organize an illustrative review of sample interventions. After commenting on some of the findings and limitations of past work, we offer suggestions for enhancing the systematic evaluation of intervention programs that include careful selection of comparison groups, a broad array of STEM outcome measures, assessment of potentially unintended consequences, and meta-analyses.

[Times of gender equity: a description of the inequalities between autonomous communities, Spain 2006-2014].

PubMed

Fernández-Sáez, José; Ruiz-Cantero, María Teresa; Guijarro-Garvi, Marta; Rodenas-Calatayud, Carmen; Martí-Sempere, Mónica; Jiménez-Alegre, María Dolores

2016-01-01

Gender equity (GE) is a structural determinant of health inequalities. In this light, our objective is to show the evolution of gender equity in the Spanish autonomous communities since 2006, prior to the enactment of the Equality Act (2007) and the economic crisis (2008), until 2014. Ecological study of gender equity in the 17 Spanish autonomous communities from 2006-2011-2014. We have calculated: 1) modified gender equity index (MGEI) for the autonomous communities (0=equity, ±1=inequity); 2) interregional and temporal convergences in gender equity. The MGEI in the autonomous communities in 2014 has negative values close to 0 (inequity towards women). There is no interregional convergence due to the dispersion increase (2006: 0.1503; 2011: 0.2280; 2014: 0.4964), and no temporal convergence due to the lack of progress of the autonomous communities with poor gender equity. The gender gap in economic activity continues to be unfavourable to women, decreasing in all communities between 2006 and 2011 but increasing in six communities in 2014. The gender gap in education from 2006-2011-2014 has positive values close to 0 (unfavourable to men), while the gender gap in empowerment is unfavourable to women, representing the most significant gender equity disparity. Inter-community dispersion of economic activity and education did not change between 2006 and 2014, while inter-community dispersion of empowerment increased. The level of gender equity achieved in the Spanish autonomous communities in 2006 was lost during the economic crisis, as gender equity disparities between the communities had increased by 2014. Gender inequity continues to be unfavourable to women. Copyright © 2016 SESPAS. Published by Elsevier Espana. All rights reserved.

Is the Gap More than Gender? A Longitudinal Analysis of Gender, Gender Role Orientation, and Earnings

ERIC Educational Resources Information Center

Judge, Timothy A.; Livingston, Beth A.

2008-01-01

This study investigated the relationships among gender, gender role orientation (i.e., attitudes toward the gendered separation of roles at work and at home), and earnings. A multilevel model was conceptualized in which gender role orientation and earnings were within-individual variables that fluctuate over time (although predictors of…

Towards gender equity in physics in India: Initiatives, investigations, and questions

NASA Astrophysics Data System (ADS)

Shastri, P.; Kurup, A.; Resmi, L.; Ramaswamy, R.; Ubale, S.; Bagchi, S.; Rao, S.; Narasimhan, S.

2015-12-01

Initiatives towards gender parity in the sciences in India have occurred both at national, governmental levels and at local, institutional levels. A gender gap persists in physics, but data suggest that this gap is due neither to lack of interest in science nor to a lack of career goals in science among girls. We outline investigations that are important to pursue and recommendations that build on the existing science interest and the impact of initiatives so far.

[The gender gap in Italian medicine].

PubMed

De Simone, Silvia; Podda, Daiana; Lampis, Jessica

2015-01-28

This study is collocated in the debate about the gender gap in Medicine giving voice to female physicians who have damaged the "glass ceiling". Our research offers a contribute to the exploration about the motivations of persistence of gender gap in Medicine despite current changes. This study is based on 21 biographical interviews to female physicians who are managers in Italian hospitals. The themes emerged by data analysis concerned the participants 'discrimination experiences in their hierarchical advancement, the evidences of a persistence of horizontal segregation in some medical specializations, the difficult to find a work-life balance and the effects of this difficult on the female physicians' health. Our research confirmed a persistence of gender gap in the medical world, which disadvantages women in their career choices and in their hierarchical advancement and which appears in the form of invisible barriers impregnated of stereotypes and prejudices that are taken for granted by many men and women, especially those who have the power; these barriers make the female doctors 'health more vulnerable to the event of work-related stress. By the dates emerged the necessity of cultural and institutional interventions, actions for deconstruction of gender stereotypes, and the necessity of intervention for a more flexible and functioning work organization that satisfies the female physicians' needs.

Is gender policy related to the gender gap in external cause and circulatory disease mortality? A mixed effects model of 22 OECD countries 1973-2008.

PubMed

Backhans, Mona; Burström, Bo; de Leon, Antonio Ponce; Marklund, Staffan

2012-11-12

Gender differences in mortality vary widely between countries and over time, but few studies have examined predictors of these variations, apart from smoking. The aim of this study is to investigate the link between gender policy and the gender gap in cause-specific mortality, adjusted for economic factors and health behaviours. 22 OECD countries were followed 1973-2008 and the outcomes were gender gaps in external cause and circulatory disease mortality. A previously found country cluster solution was used, which includes indicators on taxes, parental leave, pensions, social insurances and social services in kind. Male breadwinner countries were made reference group and compared to earner-carer, compensatory breadwinner, and universal citizen countries. Specific policies were also analysed. Mixed effect models were used, where years were the level 1-units, and countries were the level 2-units. Both the earner-carer cluster (ns after adjustment for GDP) and policies characteristic of that cluster are associated with smaller gender differences in external causes, particularly due to an association with increased female mortality. Cluster differences in the gender gap in circulatory disease mortality are the result of a larger relative decrease of male mortality in the compensatory breadwinner cluster and the earner-carer cluster. Policies characteristic of those clusters were however generally related to increased mortality. Results for external cause mortality are in concordance with the hypothesis that women become more exposed to risks of accident and violence when they are economically more active. For circulatory disease mortality, results differ depending on approach--cluster or indicator. Whether cluster differences not explained by specific policies reflect other welfare policies or unrelated societal trends is an open question. Recommendations for further studies are made.

The Wage Gap: Briefing Paper #1.

ERIC Educational Resources Information Center

National Committee on Pay Equity, Washington, DC.

Women have made slow, steady progress in the labor market since 1979, but the wage gap has not narrowed significantly. This briefing paper updates a September 1987 paper based on "Male-Female Differences in Work Experience, Occupations, and Earnings: 1984" (Current Population Reports, Household Economic Studies, Series P-70, No. 10, issued in…

Narrowing the Literacy Achievement Gap in Elementary Grades

ERIC Educational Resources Information Center

Dailey, Mary Callan

2014-01-01

This study addressed the gap in practice of instructional literacy, as evidenced by below-proficient literacy status by subgroups of regular education students in Grades 3-5 in an affluent suburban New Jersey public school district. The purpose of this qualitative grounded theory investigation, approached from an interpretive constructivist…

School Personnel-Student Racial Congruence and the Achievement Gap

ERIC Educational Resources Information Center

Moore, Allison B.; MacGregor, Cynthia; Cornelius-White, Jeffrey

2017-01-01

Purpose: This paper aims to examine the relationship between student achievement and racial congruence of school personnel and students to help educators and policy makers narrow the achievement gap. Design/methodology/approach: This quasi-experimental, correlational study used publicly available data from 158 elementary schools in the Houston…

Narrowing the Achievement Gap: A Case Study of One Outperforming Urban School Making A Difference

ERIC Educational Resources Information Center

Garner, Dionne M.

2017-01-01

Despite efforts to positively impact educational outcomes for underrepresented youth, the achievement gap persists in the United States. Underrepresented youth are students representing lower socioeconomic, racial, ethnic, or language minority populations that are underrepresented in higher educational attainment relative to their numbers in the…

Keeping the Bar Low: Why Russia's Nonresident Fathers Accept Narrow Fatherhood Ideals

ERIC Educational Resources Information Center

Utrata, Jennifer

2008-01-01

Although most Russian nonresident fathers feel torn between old and new ideals of fatherhood, they end up accepting older, narrow ideals. Fathers reproduce the dominant gender discourse, which deems men irresponsible and infantile and diminishes the importance of fathers. On the basis of extensive fieldwork, including in-depth interviews (N = 21)…

Racial Wealth Disparities: Is the Gap Closing? Working Paper No. 311.

ERIC Educational Resources Information Center

Gittleman, Maury; Wolff, Edward N.

Most studies of the economic progress of African Americans have focused on income or narrower measures, such as learning, to assess the extent to which any gains relative to other ethnic groups can be attributed to factors such as declining racial discrimination, affirmative action policies, changes in industrial composition, or a narrowing of the…

The gender gap in student engagement: The role of teachers' autonomy support, structure, and involvement.

PubMed

Lietaert, Sofie; Roorda, Debora; Laevers, Ferre; Verschueren, Karine; De Fraine, Bieke

2015-12-01

The gender gap in education in favour of girls is a widely known phenomenon. Boys generally have higher dropout rates, obtain lower grades, and show lower engagement. Insight into factors related to these academic outcomes could help to address the gender gap. This study investigated, for Dutch language classes, (1) how boys and girls differ in behavioural engagement, (2) which teacher support dimensions (autonomy support, structure, involvement) may explain gender differences in engagement (mediation hypothesis), and (3) whether and which of these teacher support dimensions matter more for boys' as opposed to girls' engagement (moderation or differential effects hypothesis). A total of 385 Grade 7 students and their 15 language teachers participated in this study. Teacher support was assessed through student reports. Student engagement was measured using student, teacher, and observer reports. By means of structural equation modelling, the mediating role of the teacher support dimensions for gender differences in behavioural engagement was tested. The potential differential role of the teacher support dimensions for boys' and girls' engagement was investigated through multigroup analysis. Boys were less engaged than girls and reported lower support from their teacher. Autonomy support and involvement partially mediated the relationship between gender and behavioural engagement. Autonomy support was demonstrated to be a protective factor for boys' engagement but not for girls'. Structure and involvement contributed equally to engagement for both sexes. Although involvement and autonomy support partly explained the gender gap in engagement (mediation hypothesis), more support was found for differential effects of autonomy support on boys' versus girls' engagement (differential effects hypothesis). © 2015 The British Psychological Society.

Gender Equity in Physics Practice: The Indian Context & the Social Impact of Policy

NASA Astrophysics Data System (ADS)

Shastri, Prajval

2015-04-01

The gender gap in the physics profession that is seen world-wide has been attributed to multiple factors. The applicability of these factors is explored in the context of physics practice in India, using available empirical investigations and theoretical insights from gender studies. Indications are that girls are as interested in science as boys at the high-school level. In the profession, however, there is a significant gender gap. Data show that it is caused not only by the discriminatory familial responsibilities that women encounter in their personal lives, but also by gender-discriminatory attitudes in the scientific workplace. Although the Government of India, which is the major funder of scientific research and higher education, has acknowledged the gender disparity and initiated several measures to address it, these measures also come from a gendered perspective, and are therefore likely to be limited in their long-term effectiveness. Policy measures must address the gender discrimination in the workplace as well in order to achieve gender equity.

Access or Inclusion? Conceptualisation and Operationalisation of Gender Equality in Zimbabwean State Universities

ERIC Educational Resources Information Center

Chauraya, Efiritha

2014-01-01

This article explores concerns about gender inequality in Zimbabwean state universities. The researcher's interest arose from the realisation of persistent gender inequalities despite initiatives to close gender gaps. Of particular concern is the conceptualization and operationalisation of gender equality in institutions. Focusing only on the…

Band gap narrowing in n-type and p-type 3C-, 2H-, 4H-, 6H-SiC, and Si

NASA Astrophysics Data System (ADS)

Persson, C.; Lindefelt, U.; Sernelius, B. E.

1999-10-01

Doping-induced energy shifts of the conduction band minimum and the valence band maximum have been calculated for n-type and p-type 3C-, 2H-, 4H-, 6H-SiC, and Si. The narrowing of the fundamental band gap and of the optical band gap are presented as functions of ionized impurity concentration. The calculations go beyond the common parabolic treatments of the ground state energy dispersion by using energy dispersion and overlap integrals from band structure calculations. The nonparabolic valence band curvatures influence strongly the energy shifts especially in p-type materials. The utilized method is based on a zero-temperature Green's function formalism within the random phase approximation with local field correction according to Hubbard. We have parametrized the shifts of the conduction and the valence bands and made comparisons with recently published results from a semi-empirical model.

Women and the Leadership Paradigm: Bridging the Gender Gap.

ERIC Educational Resources Information Center

Growe, Roslin; Montgomery, Paula

The under-representation of qualified women in leadership positions has created a gender gap that exists not only in education but in many areas of the workplace. Society has determined that only males make good leaders; therefore it continues to deny easy access for women seeking leadership roles because they do not fit the norm. Women who seek…

Does Menstruation Explain Gender Gaps in Work Absenteeism?

ERIC Educational Resources Information Center

Herrmann, Mariesa A.; Rockoff, Jonah E.

2012-01-01

Ichino and Moretti (2009) find that menstruation may contribute to gender gaps in absenteeism and earnings, based on evidence that absences of young female Italian bank employees follow a 28-day cycle. We find this evidence is not robust to the correction of coding errors or small changes in specification, and we find no evidence of increased…

Religion and Education Gender Gap: Are Muslims Different?

ERIC Educational Resources Information Center

Hajj, Mandana; Panizza, Ugo

2009-01-01

This paper uses individual-level data and a differences-in-differences estimation strategy to test whether the education gender gap of Muslims is different from that of Christians. In particular, the paper uses data for young Lebanese and shows that, other things equal, girls (both Muslim and Christian) tend to receive more education than boys and…

Closing the Technological Gender Gap: Feminist Pedagogy in the Computer-Assisted Classroom.

ERIC Educational Resources Information Center

Hesse-Biber, Sharlene; Gilbert, Melissa Kesler

1994-01-01

Asserts that, although computers are playing an increasingly important role in the classroom, a technological gender gap serves as a barrier to the effective use of computers by women instructors in higher education. Encourages women to seize computer tools for their own educational purposes and argues for enhancing women's computer learning. (CFR)

Gender Gaps in College Enrollment and Degree Attainment: An Exploratory Analysis

ERIC Educational Resources Information Center

Adebayo, Bob

2008-01-01

Post-secondary institutions are increasingly interested in the collection of data to support institutional planning. With increase in the proportion of women going to college today than they did a decade ago, our understanding of how gender gaps in college enrollment affect the nature and the types of degrees being conferred by colleges and…

Toward an Understanding of Dimensions, Predictors, and the Gender Gap in Written Composition

ERIC Educational Resources Information Center

Kim, Young-Suk; Al Otaiba, Stephanie; Wanzek, Jeanne; Gatlin, Brandy

2015-01-01

We had 3 aims in the present study: (a) to examine the dimensionality of various evaluative approaches to scoring writing samples (e.g., quality, productivity, and curriculum-based measurement [CBM] writing scoring), (b) to investigate unique language and cognitive predictors of the identified dimensions, and (c) to examine gender gap in the…

How Welfare States Shape the Gender Pay Gap: A Theoretical and Comparative Analysis

ERIC Educational Resources Information Center

Mandel, Hadas; Shalev, Michael

2009-01-01

We assess the impact of the welfare state on cross-national variation in the gender wage gap. Earnings inequality between men and women is conceptualized as resulting from their different locations in the class hierarchy, combined with the severity of wage differentials between and within classes. This decomposition contributes to identifying…

The Gender Gap in Asperger Syndrome: Where Are the Girls?

ERIC Educational Resources Information Center

Wilkinson, Lee A.

2008-01-01

Although there has been a dramatic increase in the recognition of autism spectrum disorders over the past decade, a significant gender gap has emerged in the diagnosis of milder forms, such as high functioning autism and Asperger syndrome. Statistics indicate that while boys are being referred and identified in greater numbers, this is not the…

The Gender Gap in Undergraduate Business Programs in the United States

ERIC Educational Resources Information Center

Ball, Jennifer Ann

2012-01-01

In the last several years there has been much scholarship in the area of the reverse gender gap in colleges and universities, as there have been more women than men attending and graduating from colleges and universities since the early 1980s. Little if any scholarship exists about students and recent graduates from undergraduate business programs…

The Gender Gap and Women's Issues in the 1988 Presidential Campaign.

ERIC Educational Resources Information Center

Nelson, Victoria

Two factors during the 1988 presidential campaign were largely responsible for the erosion of "women's issues" and the so-called "gender gap"--the perception that a candidate is unattractive to women voters. This perception is thought to be based upon the candidate's stand on issues such as abortion, day care and the Equal…

Understanding the Gender Gap in Mathematics Achievement: The Role of Self-Efficacy and Stereotype Threat

ERIC Educational Resources Information Center

Schwery, Denise; Hulac, David; Schweinle, Amy

2016-01-01

This literature review provides school psychologists with an understanding of the important issues related to the gender gap in mathematics achievement. The extant literature suggests that girls tend to receive lower scores than boys on standardized math tests, but in general these differences tend to be small. However, girls have better classroom…

Explaining Cross-Racial Differences in the Educational Gender Gap. CEP Discussion Paper No. 1220

ERIC Educational Resources Information Center

Aucejo, Esteban

2013-01-01

The sizable gender gap in college enrolment, especially among African Americans, constitutes a puzzling empirical regularity that may have serious consequences on marriage markets, male labor force participation and the diversity of college campuses. For instance, only 35.7 percent of all African American undergraduate students were men in 2004.…

The Gender Gap in Attitudes about Childlessness in the United States

ERIC Educational Resources Information Center

Koropeckyj-Cox, Tanya; Pendell, Gretchen

2007-01-01

Acceptance of childlessness has increased since the 1970s, with women reporting greater acceptance than men. Using the National Survey of Families and Households (1987-1988; N = 10,648) and the General Social Survey (1994; N =1,395), we examined this gender gap as it relates to both structural and sociocultural factors, including religion, gender…

Does the Gender Wage Gap Exist at Riverside Community College District?

ERIC Educational Resources Information Center

Brown, Jami; Casolari, Amber

2015-01-01

The gender wage gap in the United States is a well-documented social and economic phenomenon. The Equal Pay Act of 1963 has done little to bring parity between men's and women's wages. Existing data show a relationship between race, age, geography, immigration, education, and women's pay status. This study analyzes wage disparity within higher…

Gender Wage Gap Accounting: The Role of Selection Bias.

PubMed

Bar, Michael; Kim, Seik; Leukhina, Oksana

2015-10-01

Mulligan and Rubinstein (2008) (MR) argued that changing selection of working females on unobservable characteristics, from negative in the 1970s to positive in the 1990s, accounted for nearly the entire closing of the gender wage gap. We argue that their female wage equation estimates are inconsistent. Correcting this error substantially weakens the role of the rising selection bias (39 % versus 78 %) and strengthens the contribution of declining discrimination (42 % versus 7 %). Our findings resonate better with related literature. We also explain why our finding of positive selection in the 1970s provides additional support for MR's main hypothesis that an exogenous rise in the market value of unobservable characteristics contributed to the closing of the gender gap.

Is sprawl associated with a widening urban-suburban mortality gap?

PubMed

Fan, Yingling; Song, Yan

2009-09-01

This paper examines whether sprawl, featured by low development density, segregated land uses, lack of significant centers, and poor street connectivity, contributes to a widening mortality gap between urban and suburban residents. We employ two mortality datasets, including a national cross-sectional dataset examining the impact of metropolitan-level sprawl on urban-suburban mortality gaps and a longitudinal dataset from Portland examining changes in urban-suburban mortality gaps over time. The national and Portland studies provide the only evidence to date that (1) across metropolitan areas, the size of urban-suburban mortality gaps varies by the extent of sprawl: in sprawling metropolitan areas, urban residents have significant excess mortality risks than suburban residents, while in compact metropolitan areas, urbanicity-related excess mortality becomes insignificant; (2) the Portland metropolitan area not only experienced net decreases in mortality rates but also a narrowing urban-suburban mortality gap since its adoption of smart growth regime in the past decade; and (3) the existence of excess mortality among urban residents in US sprawling metropolitan areas, as well as the net mortality decreases and narrowing urban-suburban mortality gap in the Portland metropolitan area, is not attributable to sociodemographic variations. These findings suggest that health threats imposed by sprawl affect urban residents disproportionately compared to suburban residents and that efforts curbing sprawl may mitigate urban-suburban health disparities.

Decoration of wide bandgap semiconducting materials for enhancing photoelectrochemical efficiency of PEC systems.

NASA Astrophysics Data System (ADS)

Bakranov, N.; Zhabaikhanov, A.; Kudaibergenov, S.; Ibraev, N.

2018-03-01

The production of photoanodes based on wide-band gap materials such as TiO2 is economically viable because of the low cost of synthesis methods. Contrary to economic aspects, wide-band gap semiconductor materials have a significant disadvantage due to low sensitivity to photons of visible light. To increase the photoactive parameters of the material of the electrodes in the visible range, the methods for decorating nanomasses of titanium dioxide by narrow-gap semiconductors are used. One of the most suitable narrow-gap semiconductor materials are CdS and Fe2O3. Controlled deposition of such materials on wide-gap semiconductors allows to regulate both the diffusion time of charge carriers and the band structure of TiO2/Fe2O3 and TiO2/CdS composites. The dimensions of the structure of the photoelectrode material of the cell have a large influence on the characteristics of the photocatalyst created. Thus, in the hematite structures of nanometre dimension, the rate of recombination of charge carriers fades away in comparison with bulk structures. Reducing the size of CdS structures also positively affects the nature of the photocatalytic reaction.

The Gender Gap in Second Language Acquisition: Gender Differences in the Acquisition of Dutch among Immigrants from 88 Countries with 49 Mother Tongues.

PubMed

van der Slik, Frans W P; van Hout, Roeland W N M; Schepens, Job J

2015-01-01

Gender differences were analyzed across countries of origin and continents, and across mother tongues and language families, using a large-scale database, containing information on 27,119 adult learners of Dutch as a second language. Female learners consistently outperformed male learners in speaking and writing proficiency in Dutch as a second language. This gender gap remained remarkably robust and constant when other learner characteristics were taken into account, such as education, age of arrival, length of residence and hours studying Dutch. For reading and listening skills in Dutch, no gender gap was found. In addition, we found a general gender by education effect for all four language skills in Dutch for speaking, writing, reading, and listening. Female language learners turned out to profit more from higher educational training than male learners do in adult second language acquisition. These findings do not seem to match nurture-oriented explanatory frameworks based for instance on a human capital approach or gender-specific acculturation processes. Rather, they seem to corroborate a nature-based, gene-environment correlational framework in which language proficiency being a genetically-influenced ability interacting with environmental factors such as motivation, orientation, education, and learner strategies that still mediate between endowment and acquiring language proficiency at an adult stage.

Campaigning on the welfare state: The impact of gender and gender diversity.

PubMed

Ennser-Jedenastik, Laurenz

2017-07-01

Social policy matters have long been considered women's issues. Extant research has documented a strong link between gender and the policies of the welfare state in the legislative, executive and electoral arenas. Yet what determines the strength of this association has largely been left unexplored. Drawing on tokenism theory, this article proposes gender diversity at the group level as a key explanatory factor. It hypothesizes that the gender gap in social policy diminishes as the female representation in a political party increases. To test this argument, it examines almost 8000 press releases issued by over 600 politicians during four election campaigns in Austria between 2002 and 2013. The analysis demonstrates that women talk more about social policy issues during election campaigns than men, but that this emphasis gap disappears for parties with a more equal gender balance. These results have important implications for our understanding of the politics of gender and social policy.

Gender in Science and Engineering Faculties: Demographic Inertia Revisited.

PubMed

Thomas, Nicole R; Poole, Daniel J; Herbers, Joan M

2015-01-01

The under-representation of women on faculties of science and engineering is ascribed in part to demographic inertia, which is the lag between retirement of current faculty and future hires. The assumption of demographic inertia implies that, given enough time, gender parity will be achieved. We examine that assumption via a semi-Markov model to predict the future faculty, with simulations that predict the convergence demographic state. Our model shows that existing practices that produce gender gaps in recruitment, retention, and career progression preclude eventual gender parity. Further, we examine sensitivity of the convergence state to current gender gaps to show that all sources of disparity across the entire faculty career must be erased to produce parity: we cannot blame demographic inertia.

The reverse environmental gender gap in China: evidence from "The China Survey".

PubMed

Shields, Todd; Zeng, Ka

2012-01-01

Objectives This article explores gender differences in attitudes about the seriousness of the environment as a problem in China using the “2008 China Survey.” Methods We use generalized ordered logit models to analyze survey respondents’ environmental attitudes. Results Our results indicate that there is indeed a “gender gap” in environmental attitudes in China, but the pattern is reversed from what has been generally found in previous work conducted in the United States and Europe. Chinese men, not women, show a greater concern about environmental problems and the seriousness of the environmental degradation in China. Further, we find that this gender gap is based largely in the substantial economic and educational differences between men and women in contemporary China. Conclusions This study emphasizes the mediating influence of socioeconomic variables in explaining gender attitudes toward the environment in China. Our findings suggest that in different contexts, women may be faced with difficult decisions between immediate economic necessities and long-term environmental concerns. The observed environmental gender gap in China will likely persist unless further economic development results in improved access to education and economic conditions for Chinese women.

An Investigation of the Morphology of the Petrotympanic Fissure Using Cone-Beam Computed Tomography

PubMed Central

Syriopoulos, Konstantinos; Sens, Rogier L.; Politis, Constantinus

2018-01-01

ABSTRACT Objectives The purpose of the present study was: a) to examine the visibility and morphology of the petrotympanic fissure on cone-beam computed tomography images, and b) to investigate whether the petrotympanic fissure morphology is significantly affected by gender and age, or not. Material and Methods Using Newtom VGi (QR Verona, Italy), 106 cone-beam computed tomography examinations (212 temporomandibular joint areas) of both genders were retrospectively and randomly selected. Two observers examined the images and subsequently classified by consensus the petrotympanic fissure morphology into the following three types: type 1 - widely open; type 2 - narrow middle; type 3 - very narrow/closed. Results The petrotympanic fissure morphology was assessed as type 1, type 2, and type 3 in 85 (40.1%), 72 (34.0%), and 55 (25.9%) cases, respectively. No significant difference was found between left and right petrotympanic fissure morphology (Kappa = 0.37; P < 0.001). Furthermore, no significant difference was found between genders, specifically P = 0.264 and P = 0.211 for the right and left petrotympanic fissure morphology, respectively. However, the ordinal logistic regression analysis showed that males tend to have narrower petrotympanic fissures, in particular OR = 1.58 for right and OR = 1.5 for left petrotympanic fissure. Conclusions The current study lends support to the conclusion that an enhanced multi-planar cone-beam computed tomography yields a clear depiction of the petrotympanic fissure's morphological characteristics. We have found that the morphology is neither gender nor age-related. PMID:29707183

An Investigation of the Morphology of the Petrotympanic Fissure Using Cone-Beam Computed Tomography.

PubMed

Damaskos, Spyros; Syriopoulos, Konstantinos; Sens, Rogier L; Politis, Constantinus

2018-01-01

The purpose of the present study was: a) to examine the visibility and morphology of the petrotympanic fissure on cone-beam computed tomography images, and b) to investigate whether the petrotympanic fissure morphology is significantly affected by gender and age, or not. Using Newtom VGi (QR Verona, Italy), 106 cone-beam computed tomography examinations (212 temporomandibular joint areas) of both genders were retrospectively and randomly selected. Two observers examined the images and subsequently classified by consensus the petrotympanic fissure morphology into the following three types: type 1 - widely open; type 2 - narrow middle; type 3 - very narrow/closed. The petrotympanic fissure morphology was assessed as type 1, type 2, and type 3 in 85 (40.1%), 72 (34.0%), and 55 (25.9%) cases, respectively. No significant difference was found between left and right petrotympanic fissure morphology (Kappa = 0.37; P < 0.001). Furthermore, no significant difference was found between genders, specifically P = 0.264 and P = 0.211 for the right and left petrotympanic fissure morphology, respectively. However, the ordinal logistic regression analysis showed that males tend to have narrower petrotympanic fissures, in particular OR = 1.58 for right and OR = 1.5 for left petrotympanic fissure. The current study lends support to the conclusion that an enhanced multi-planar cone-beam computed tomography yields a clear depiction of the petrotympanic fissure's morphological characteristics. We have found that the morphology is neither gender nor age-related.

Vision and spectroscopic sensing for joint tracing in narrow gap laser butt welding

NASA Astrophysics Data System (ADS)

Nilsen, Morgan; Sikström, Fredrik; Christiansson, Anna-Karin; Ancona, Antonio

2017-11-01

The automated laser beam butt welding process is sensitive to positioning the laser beam with respect to the joint because a small offset may result in detrimental lack of sidewall fusion. This problem is even more pronounced in case of narrow gap butt welding, where most of the commercial automatic joint tracing systems fail to detect the exact position and size of the gap. In this work, a dual vision and spectroscopic sensing approach is proposed to trace narrow gap butt joints during laser welding. The system consists of a camera with suitable illumination and matched optical filters and a fast miniature spectrometer. An image processing algorithm of the camera recordings has been developed in order to estimate the laser spot position relative to the joint position. The spectral emissions from the laser induced plasma plume have been acquired by the spectrometer, and based on the measurements of the intensities of selected lines of the spectrum, the electron temperature signal has been calculated and correlated to variations of process conditions. The individual performances of these two systems have been experimentally investigated and evaluated offline by data from several welding experiments, where artificial abrupt as well as gradual deviations of the laser beam out of the joint were produced. Results indicate that a combination of the information provided by the vision and spectroscopic systems is beneficial for development of a hybrid sensing system for joint tracing.

Shear Stress induced Stretching of Red Blood Cells by Oscillating Bubbles within a Narrow Gap

NASA Astrophysics Data System (ADS)

Li, Fenfang; Mohammadzadeh, Milad; Ohl, Claus-Dieter; Claus-Dieter Ohl Team

2013-11-01

The flow pattern, especially the boundary layer caused by the expanding/contracting bubble in a narrow gap (15 μm) and the resultant stretching of red blood cells is investigated in this work. High speed recordings show that a red blood cell (biconcave shape, thickness of 1-2 μm) can be elongated to five times its original length by a laser-induced cavitation bubble within the narrow gap. However, flexible cancer cells in suspension (RKO, spherical shape, diameter of 10-15 μm) are hardly elongated under the same experimental condition. We hypothesize that the shear stress at the boundary layer is crucial for this elongation to occur. Therefore, in order to resolve the related fluid dynamics, we conducted numerical simulations using the finite element method (Fluent). The rapidly expanding/contracting vapor bubble is successfully modeled by employing viscosity and surface tension. The transient pressure inside the bubble and the velocity profile of the flow is obtained. We observe strong shear near the upper and lower boundary during the bubble oscillation. The flow fields are compared with analytical solutions to transient and pulsating flows in 2D. In the experiment the red blood cells sit within the lower boundary layer, thus are probably elongated by this strong shear flow. In contrast, the spherical cancer cells are of comparable size to the gap height so that they are lesser affected by this boundary layer flow.

Drug Resistance and Substance Use Among Male and Female Adolescents in Alternative Secondary Schools in Guanajuato, Mexico

PubMed Central

Kulis, Stephen; Marsiglia, Flavio F.; Ayers, Stephanie L.; Booth, Jaime; Nuño-Gutiérrez, Bertha L.

2012-01-01

Objective: Research is limited on the strategies that Mexican adolescents use to resist use of alcohol, cigarettes, and other drugs. Cultural norms and gender socialization patterns concerning the acceptability of use of various substances by women and men influence Mexican youths in their responses to offers of substances. This study explored the drug-resistance strategies used by youth in the central Mexican state of Guanajuato, how their use predicted patterns of substance use, and how these associations differed by gender. Method: The analysis used cross-sectional survey data from 702 (60% male) students enrolled in eight alternative secondary education school sites in 2007. Participants reported the drug-resistance behaviors they used to deal with offers of alcohol, cigarettes, and marijuana. Past-12-month use of the four drug-resistance strategies employed most often by U.S. youth—refuse, explain, avoid, and leave (R.E.A.L.)—and any other strategies were measured. Composite measures of lifetime and recent use of alcohol, cigarettes, and marijuana were predicted in multivariate ordinary least squares regression analyses. Models were tested with and without controls for the frequency that respondents were offered substances and introduced gender interaction effects. Results: Controlling for substance use offers, more frequent use of a wide repertoire of R.E.A.L. strategies predicted less consumption of alcohol and cigarettes, and using non-R.E.A.L. strategies predicted less marijuana consumption. All of these relationships were either stronger for males than for females or significant for males only. Conclusions: Gender differences exist in the impact of R.E.A.L. strategies on substance use among youth in Mexico. Despite a narrowing gender gap in substance use in Mexico, large exposure to and susceptibility of substance use remains. Developing effective prevention programs in Mexico based on teaching appropriate drug-resistance strategies and enhancing communication skills could aid in reducing substance use among Mexican adolescents. PMID:22152668

H-tailored surface conductivity in narrow band gap In(AsN)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Velichko, A. V., E-mail: amalia.patane@nottingham.ac.uk, E-mail: anton.velychko@nottingham.ac.uk; Patanè, A., E-mail: amalia.patane@nottingham.ac.uk, E-mail: anton.velychko@nottingham.ac.uk; Makarovsky, O.

2015-01-12

We show that the n-type conductivity of the narrow band gap In(AsN) alloy can be increased within a thin (∼100 nm) channel below the surface by the controlled incorporation of H-atoms. This channel has a large electron sheet density of ∼10{sup 18 }m{sup −2} and a high electron mobility (μ > 0.1 m{sup 2}V{sup −1}s{sup −1} at low and room temperature). For a fixed dose of impinging H-atoms, its width decreases with the increase in concentration of N-atoms that act as H-traps thus forming N-H donor complexes near the surface.

FAST OPENING SWITCH

DOEpatents

Bender, M.; Bennett, F.K.; Kuckes, A.F.

1963-09-17

A fast-acting electric switch is described for rapidly opening a circuit carrying large amounts of electrical power. A thin, conducting foil bridges a gap in this circuit and means are provided for producing a magnetic field and eddy currents in the foil, whereby the foil is rapidly broken to open the circuit across the gap. Advantageously the foil has a hole forming two narrow portions in the foil and the means producing the magnetic field and eddy currents comprises an annular coil having its annulus coaxial with the hole in the foil and turns adjacent the narrow portions of the foil. An electrical current flows through the coil to produce the magnetic field and eddy currents in the foil. (AEC)

Green digital signage using nanoparticle embedded narrow-gap field sequential TN-LCDs

NASA Astrophysics Data System (ADS)

Kobayashi, Shunsuke; Shiraishi, Yukihide; Sawai, Hiroya; Toshima, Naoki; Okita, Masaya; Takeuchi, Kiyofumi; Takatsu, Haruyoshi

2012-03-01

We have fabricated field sequential color (FSC)-LCDs using cells and modules of narrow-gap TN-LCDs with and without doping the nanoparticles of PCyD-ZrO2 and AF-SiO2. It is shown that the FSC-LCD exhibits a high optical efficiency of OE=4.5 that is defined as OE=[Luminance]/[W/m2]=(cd/W). This figure may provide us a good reference or to clear the Energy Star Program Version 5-3 that issues a guideline: LCD with 50 inch on the diagonal consumes the energy of 108W. Through this research it is claimed that our FSC=LCD may be a novel green digital signage.

Structural phase transition, narrow band gap, and room-temperature ferromagnetism in [KNbO{sub 3}]{sub 1−x}[BaNi{sub 1/2}Nb{sub 1/2}O{sub 3−δ}]{sub x} ferroelectrics

DOE Office of Scientific and Technical Information (OSTI.GOV)

Zhou, Wenliang; Yang, Pingxiong, E-mail: pxyang@ee.ecnu.edu.cn; Chu, Junhao

2014-09-15

Structural phase transition, narrow band gap (E{sub g}), and room-temperature ferromagnetism (RTFM) have been observed in the [KNbO{sub 3}]{sub 1−x}[BaNi{sub 1/2}Nb{sub 1/2}O{sub 3−δ}]{sub x} (KBNNO) ceramics. All the samples have single phase perovskite structure, but exhibit a gradual transition behaviour from the orthorhombic to a cubic structure with the increase of x. Raman spectroscopy analysis not only corroborates this doping-induced change in normal structure but also shows the local crystal symmetry for x ≥ 0.1 compositions to deviate from the idealized cubic perovskite structure. A possible mechanism for the observed specific changes in lattice structure is discussed. Moreover, it ismore » noted that KBNNO with compositions x = 0.1–0.3 have quite narrow E{sub g} of below 1.5 eV, much smaller than the 3.2 eV band gap of parent KNbO{sub 3} (KNO), which is due to the increasing Ni 3d electronic states within the gap of KNO. Furthermore, the KBNNO materials present RTFM near a tetragonal to cubic phase boundary. With increasing x from 0 to 0.3, the magnetism of the samples develops from diamagnetism to ferromagnetism and paramagnetism, originating from the ferromagnetic–antiferromagnetic competition. These results are helpful in the deeper understanding of phase transitions, band gap tunability, and magnetism variations in perovskite oxides and show the potential role, such materials can play, in perovskite solar cells and multiferroic applications.« less

Gender differences in sexuality: a meta-analysis.

PubMed

Oliver, M B; Hyde, J S

1993-07-01

This meta-analysis surveyed 177 usable sources that reported data on gender differences on 21 different measures of sexual attitudes and behaviors. The largest gender difference was in incidence of masturbation: Men had the greater incidence (d = .96). There was also a large gender difference in attitudes toward casual sex: Males had considerably more permissive attitudes (d = .81). There were no gender differences in attitudes toward homosexuality or in sexual satisfaction. Most other gender differences were in the small-to-moderate range. Gender differences narrowed from the 1960s to the 1980s for many variables. Chodorow's neoanalytic theory, sociobiology, social learning theory, social role theory, and script theory are discussed in relation to these findings.

Gender Matters: Factors Influencing Biology Interest among Undergraduate Majors

ERIC Educational Resources Information Center

Wiens, Darrell J.; Depping, Dayna J.; Wallerich, Stacey R.; Van Laar, Emily S.; Juhl, Angela L.

2003-01-01

The educational "pipeline" that provides tomorrow's scientists and engineers leaks far more females than males, particularly in the junior high age range. The reasons for this are complex and still being studied. However, by college age, the gender differences seen at earlier ages seem to narrow or disappear when one considers only those students…

Trends in the Prevalence and Disparity in Cognitive Limitations of Americans 55-69 Years Old.

PubMed

Choi, HwaJung; Schoeni, Robert F; Martin, Linda G; Langa, Kenneth M

2018-04-16

To determine whether the prevalence of cognitive limitation (CL) among Americans ages 55 to 69 years changed between 1998 and 2014, and to assess the trends in socioeconomic disparities in CL among groups defined by race/ethnicity, education, income, and wealth. Logistic regression using 1998-2014 data from the biennial Health and Retirement Study, a nationally representative data set. CL is defined as a score of 0-11 on a 27-point cognitive battery of items focused on memory. Socioeconomic status (SES) measures are classified as quartiles. In models controlling for age, gender, and previous cognitive testing, we find no significant change over time in the overall prevalence of CL, widening disparities in limitation by income and, in some cases, wealth, and improvements among non-Hispanic whites but not other racial/ethnic groups. Among people 55-69, rates of CL are many times higher for groups with lower SES than those with higher SES, and recent trends show little indication that the gaps are narrowing.

Narrowing the Achievement Gap: A Review of Research, Policies, and Issues. Report.

ERIC Educational Resources Information Center

Hertert, Linda; Teague, Jackie

Student achievement tests consistently show that certain groups of children score far below children in other groups. The data document a strong association between poverty and students' academic success. The achievement gap begins early in children's lives as the result of physical, social, and emotional deprivations. California is attempting to…

Closing the Math Achievement Gap: Institutions Find Success with MyMathLab

ERIC Educational Resources Information Center

Stewart, Pearl

2012-01-01

Institutions find success with Pearson Education's MyMathLab. The Department of Mathematical Sciences at the University of Memphis (UM) reported a narrowing of the achievement gap between Black and White students. According to the study conducted by UM professors and titled "The Effectiveness of Blended Instruction in Postsecondary General…

Minding the Gap: Investing in a Skilled Manufacturing Workforce

ERIC Educational Resources Information Center

Richard, Alan

2015-01-01

Advanced manufacturing is growing and thriving in the United States. Companies are in great need of reliable employees who can communicate well, effectively make decisions, and are interested in long-term careers with opportunity for advancement. Employers have identified a need for a more robust talent pipeline to narrow America's skills gap--a…

Book Probes Scoring Gaps Tied to Race

ERIC Educational Resources Information Center

Viadero, Debra

2009-01-01

A recent book assembles a collection of studies on one of the great mysteries of contemporary American education: Why did national progress in narrowing the achievement gap separating African-American and white students stall from the late 1980s until 2004? "Steady Gains and Stalled Progress," published by the Russell Sage Foundation of New York…

Workaholism: Bridging the Gap between Workplace, Sociocultural, and Family Research.

ERIC Educational Resources Information Center

Robinson, Bryan E.

2000-01-01

Article attempts to narrow the gap between studies of workaholism and human relations/organizational development, and workaholism and cross-cultural research and family counseling. Counselors are encouraged to be aware of implications of workaholism for clients, including burnout and family disintegration, and screen for it just as they would for…

Can Within-Race Achievement Comparisons Help Narrow Between-Race Achievement Gaps?

ERIC Educational Resources Information Center

Duke, Daniel L.

2017-01-01

Reports on the low achievement of African American students tend to focus on Black-White achievement gaps. This study draws from official reports that also consider within-race achievement differences. An argument is presented that within-race comparisons are likely to reveal important causal factors that may go unnoticed when between-race…

Comprehensive School Reform: Meta-Analytic Evidence of Black-White Achievement Gap Narrowing.

PubMed

Gorey, Kevin M

2009-12-30

This meta-analysis extends a previous review of the achievement effects of comprehensive school reform (CSR) programs (Borman, Hewes, Overman, & Brown, 2003). That meta-analysis observed significant effects of well endowed and well-researched programs, but it did not account for race/ethnicity. This article synthesizes 34 cohort or quasi-experimental outcomes of studies that incorporated the policy-critical characteristic of race/ethnicity. compared with matched traditional schools, the black-white achievement gap narrowed significantly more among students in CSR schools. In addition, the aggregate effects were large, substantially to completely eliminating the achievement gap between African American and non-Hispanic white students in elementary and middle schools. Title I policies before or after the No Child Left Behind Act of 2001 seem to have had essentially no impact on the black-white achievement gap. Curricular and testing mandates along with the threat of sanctions without concomitant resource supports seem to have failed. This study suggests that educational achievement inequities need not be America's destiny. It seems that they could be eliminated through concerted political will and ample resource commitments to evidence-based educational programs.

Zero-gap semiconductor to excitonic insulator transition in Ta2NiSe5.

PubMed

Lu, Y F; Kono, H; Larkin, T I; Rost, A W; Takayama, T; Boris, A V; Keimer, B; Takagi, H

2017-02-16

The excitonic insulator is a long conjectured correlated electron phase of narrow-gap semiconductors and semimetals, driven by weakly screened electron-hole interactions. Having been proposed more than 50 years ago, conclusive experimental evidence for its existence remains elusive. Ta 2 NiSe 5 is a narrow-gap semiconductor with a small one-electron bandgap E G of <50 meV. Below T C =326 K, a putative excitonic insulator is stabilized. Here we report an optical excitation gap E op ∼0.16 eV below T C comparable to the estimated exciton binding energy E B . Specific heat measurements show the entropy associated with the transition being consistent with a primarily electronic origin. To further explore this physics, we map the T C -E G phase diagram tuning E G via chemical and physical pressure. The dome-like behaviour around E G ∼0 combined with our transport, thermodynamic and optical results are fully consistent with an excitonic insulator phase in Ta 2 NiSe 5 .

The Gender Confidence Gap in Fractions Knowledge: Gender Differences in Student Belief-Achievement Relationships

ERIC Educational Resources Information Center

Ross, John A.; Scott, Garth; Bruce, Catherine D.

2012-01-01

Recent research demonstrates that in many countries gender differences in mathematics achievement have virtually disappeared. Expectancy-value theory and social cognition theory both predict that if gender differences in achievement have declined there should be a similar decline in gender differences in self-beliefs. Extant literature is…

Is "Gender-Sensitive Education" a Useful Concept for Educational Policy?

ERIC Educational Resources Information Center

Forde, Christine

2014-01-01

This article responds to Astrid Sinnes and Marianne Løken's article "Gendered education in a gendered world: Looking beyond cosmetic solutions to the gender gap in science" by exploring the idea of "gender-sensitive" education and its usefulness in educational policy. It draws on theoretical discussions of the concept of…

Narrowing the Achievement Gap: Factors That Support English Learner and Hispanic Student Academic Achievement in an Urban Intermediate School

ERIC Educational Resources Information Center

Flores, Patricia Arleen

2010-01-01

A persistent and pervasive disparity in academic achievement exists between ethnic minority and English Learner students and their White and Asian peers. This qualitative single-case study of a high-poverty, high-performing middle school focused on the cultural norms, practices, and programs that were perceived to be contributing to narrowing the…

Are Early Childhood Disparities Narrowing? The Changing Nature of Early Childhood and Its Link to Narrowing School-Entry Achievement Gaps

ERIC Educational Resources Information Center

Bassok, Daphna; Finch, Jenna; Lee, RaeHyuck; Reardon, Sean F.; Waldfogel, Jane

2016-01-01

To date, no studies have documented how much early childhood experiences have changed over time. In the current study, researchers use two large, nationally representative datasets of kindergarten entrants to document the following: (1) How have children's early childhood experiences changed between 1998 and 2010?; (2) To what extent have…

Birth Cohort and the Black-White Achievement Gap: The Roles of Access and Health Soon After Birth. WP2008-20

ERIC Educational Resources Information Center

Chay, Kenneth Y.; Guryan, Jonathan; Mazumder, Bhashkar

2009-01-01

One literature documents a significant, black-white gap in average test scores, while another finds a substantial narrowing of the gap during the 1980's, and stagnation in convergence after. We use two data sources--the Long Term Trends NAEP and AFQT scores for the universe of applicants to the U.S. military between 1976 and 1991--to show: (1) the…

Birth Cohort and the Black-White Achievement Gap: The Roles of Access and Health Soon after Birth. NBER Working Paper No. 15078

ERIC Educational Resources Information Center

Chay, Kenneth Y.; Guryan, Jonathan; Bhashkar, Mazumder

2009-01-01

One literature documents a significant, black-white gap in average test scores, while another finds a substantial narrowing of the gap during the 1980's, and stagnation in convergence after. We use two data sources -- the Long Term Trends NAEP and AFQT scores for the universe of applicants to the U.S. military between 1976 and 1991 -- to show: 1)…

Minding and mending the gap: Social psychological interventions to reduce educational disparities.

PubMed

Spitzer, Brian; Aronson, Joshua

2015-03-01

Achievement gaps continue to garner a great deal of attention both in academic and in popular circles. Many students continue to struggle despite broad educational reforms aimed at narrowing these gaps in learning and performance. In this article, we review a number of social psychological interventions that show promise in reducing gaps in achievement, not by addressing structural barriers to achievement, but by helping students cope with threats to their identity that impair intellectual functioning and motivation. For example, interventions involving meditation, role models, emotional reappraisal, growth mindsets, imagining possible selves, self-affirmations, belongingness and cooperative learning have been shown to ameliorate threats to identity and raise achievement. We describe and evaluate these social psychological interventions. Many achievement gaps involve a psychological predicament: a threat to one's social identity or to one's sense of belonging. Students' implicit theories - how they mind the gap - can act as barriers to their success. By helping students cope with these threats, these theory-based interventions represent a genuine advance in the way schools may reduce gaps in achievement. These interventions show how students' educational success depends partly on fluid aspects of context - how tasks are framed, who else is in the room, or what they believe about intelligence. Because of this fluidity, these interventions may not work in all settings. Achievement gaps are ultimately caused by a variety of factors, both objective and subjective that produce inequality. The research reviewed here suggests that even without changes in objective barriers to success, brief psychological interventions can narrow what many see as intractable gaps in academic achievement. © 2015 The British Psychological Society.

Are Boys That Bad? Gender Gaps in Measured Skills, Grades and Aspirations in Czech Elementary Schools

ERIC Educational Resources Information Center

Mateju, Petr; Smith, Michael L.

2015-01-01

This article examines gender gaps in academic performance (grades in mathematics and reading) between boys and girls of ninth-grade elementary schools in the Czech Republic. Our analysis is based on 2003 data from the Programme for International Student Assessment, encompassing the academic performance and family background of ninth-grade pupils.…

College Major and the Gender Earnings Gap: A Multi-Country Examination of Postgraduate Labour Market Outcomes

ERIC Educational Resources Information Center

Garcia-Aracil, Adela

2008-01-01

This paper explores the effects of degree choice on the distribution of occupational benefits in terms of income, and their contribution to the gender earnings gap, among young European higher education graduates. The results reveal that the field of study, which is the result of a personal choice, appears to influence the distribution of…

Gender Gaps in North American Research Productivity: Examining Faculty Publication Rates in Mexico, Canada, and the U.S.

ERIC Educational Resources Information Center

Padilla-Gonzalez, Laura; Metcalfe, Amy Scott; Galaz-Fontes, Jesus F.; Fisher, Donald; Snee, Iain

2011-01-01

The present study addresses gender gaps in North American research productivity, which may be influenced by personal and family variables, as well as professional and work-related variables. The study was conducted as part of the "Changing Academic Profession (CAP) International Survey", conducted in 2007-08. Using articles as indicator…

Understanding the Gender Gap in School Performance among Low-Income Children: A Developmental Trajectory Analysis

ERIC Educational Resources Information Center

Kingdon, Danielle; Serbin, Lisa A.; Stack, Dale M.

2017-01-01

Internationally, girls outperform boys in overall school performance. The gender gap is particularly large among those in at-risk groups, such as children from families at economic disadvantage. This study modeled the academic trajectories of a low-income sample of boys and girls from the Concordia Longitudinal Risk Project across the full course…

Education, Occupation and Career Expectations: Determinants of the Gender Pay Gap for UK Graduates. CEE DP 69

ERIC Educational Resources Information Center

Chevalier, Arnaud

2006-01-01

A large proportion of the gender wage gap is usually left unexplained. In this paper, we investigate whether the unexplained component is due to misspecification. Using a sample of recent UK graduates, we introduce variables on career expectations and character traits, variables that are typically not observed. The evidence indicates that women…

Racial and Gender Gaps in Academic Achievement: An Updated Look at 1993-94 Data. Report Summary.

ERIC Educational Resources Information Center

Dulaney, Chuck; Bethune, Ginger

This second annual report for the Wake County (North Carolina) Public School System examined students' achievement indicators among groups that vary in gender, race, and economic status. The graphic format displays the extent of some of the gaps in academic achievement among the groups examined that existed in the 1993-94 school year, and compares…

Gender Gaps in Mathematics, Science and Reading Achievements in Muslim Countries: Evidence from Quantile Regression Analyses

ERIC Educational Resources Information Center

Shafiq, M. Najeeb

2011-01-01

Using quantile regression analyses, this study examines gender gaps in mathematics, science, and reading in Azerbaijan, Indonesia, Jordan, the Kyrgyz Republic, Qatar, Tunisia, and Turkey among 15 year-old students. The analyses show that girls in Azerbaijan achieve as well as boys in mathematics and science and overachieve in reading. In Jordan,…

Gender Gaps in Mathematics, Science and Reading Achievements in Muslim Countries: A Quantile Regression Approach

ERIC Educational Resources Information Center

Shafiq, M. Najeeb

2013-01-01

Using quantile regression analyses, this study examines gender gaps in mathematics, science, and reading in Azerbaijan, Indonesia, Jordan, the Kyrgyz Republic, Qatar, Tunisia, and Turkey among 15-year-old students. The analyses show that girls in Azerbaijan achieve as well as boys in mathematics and science and overachieve in reading. In Jordan,…

Ethnicity, Gender, Social Class and Achievement Gaps at Age 16: Intersectionality and "Getting It" for the White Working Class

ERIC Educational Resources Information Center

Strand, Steve

2014-01-01

Perhaps the most prevailing inequalities in educational achievement in England are those associated with socio-economic status (SES), ethnicity and gender. However, little research has sought to compare the relative size of these gaps or to explore interactions between these factors. This paper analyses the educational achievement at age 11, 14…

Addressing the STEM Gender Gap by Designing and Implementing an Educational Outreach Chemistry Camp for Middle School Girls

ERIC Educational Resources Information Center

Levine, Mindy; Serio, Nicole; Radaram, Bhasker; Chaudhuri, Sauradip; Talbert, William

2015-01-01

There continues to be a persistent, widespread gender gap in multiple STEM disciplines at all educational and professional levels: from the self-reported interest of preschool aged students in scientific exploration to the percentages of tenured faculty in these disciplines, more men than women express an interest in science, a confidence in their…

The Relationship between Gender, Ethnicity, and Technology on the Impact of Mathematics Achievement in an After-School Program

ERIC Educational Resources Information Center

Huang, Xudong; Craig, Scotty D.; Xie, Jun; Graesser, Arthur C.; Okwumabua, Theresa; Cheney, Kyle R.; Hu, Xiangen

2013-01-01

The gap among ethnicities and gender in mathematics achievement is a well-known problem. While the gap has been shrinking over the past three decades, it has not completely diminished (Jencks & Phillips, 1998; McGraw, Lubienski, & Strutchens, 2006). The ALEKS, Assessment and LEarning in Knowledge Spaces, tutoring system is one promising…

Unrealized Educational Expectations a Growing or Diminishing Gender Gap? It Depends on Your Definition. Professional File. Article 134, Fall 2013

ERIC Educational Resources Information Center

Seifert, Tricia A.; Wells, Ryan S.; Saunders, Daniel B.; Gopaul, Bryan

2013-01-01

Past research has examined the widening gender gaps in college expectations and enrollment in the United States in which more women than men expect to continue their education and enroll in postsecondary institutions. A discrepancy exists between students' expectations and their enrollment behavior: more students expect to attend college than…

Gender Grouping and Its Initial Effect on a Title I Upper Elementary School during the Pilot Year of Implementation

ERIC Educational Resources Information Center

Simon, Pamela Reed

2013-01-01

Studies have documented challenges in meeting No Child Left Behind (NCLB) expectations as well as gender differences that contribute to the achievement gaps between boys and girls. In response to increased NCLB accountability and achievement gaps between boys and girls, several experts have promoted single-sex education as a possible strategy to…

Effects of Single-Sex and Coeducational Schooling on the Gender Gap in Educational Achievement

ERIC Educational Resources Information Center

Gibb, Sheree J.; Fergusson, David M.; Horwood, L. John

2008-01-01

This study examined the effects of single-sex and coeducational schooling on the gender gap in educational achievement to age 25. Data were drawn from the Christchurch Health and Development Study, a longitudinal study of a birth cohort of 1265 individuals born in 1977 in Christchurch, New Zealand. After adjustment for a series of covariates…

Gap analysis: synergies and opportunities for effective nursing leadership.

PubMed

Davis-Ajami, Mary Lynn; Costa, Linda; Kulik, Susan

2014-01-01

Gap analysis encompasses a comprehensive process to identify, understand, address, and bridge gaps in service delivery and nursing practice. onducting gap analysis provides structure to information gathering and the process of finding sustainable solutions to important deficiencies. Nursing leaders need to recognize, measure, monitor, and execute on feasible actionable solutions to help organizations make adjustments to address gaps between what is desired and the actual real-world conditions contributing to the quality chasm in health care. Gap analysis represents a functional and comprehensive tool to address organizational deficiencies. Using gap analysis proactively helps organizations map out and sustain corrective efforts to close the quality chasm. Gaining facility in gap analysis should help the nursing profession's contribution to narrowing the quality chasm.

The mental health gender-gap in urban India: patterns and narratives.

PubMed

Das, Jishnu; Das, Ranendra Kumar; Das, Veena

2012-11-01

Women report significantly higher levels of mental distress than men in community studies around the world. We provide further evidence on the origins of this mental health gender-gap using data from 789 adults, primarily spousal pairs, from 300 families in Delhi, India. These data were collected between 2001 and 2003. We first confirm that, like in other studies, women report higher levels of mental distress and that gender differences in education, household expenditures and age do not explain the mental health gender-gap. In contrast, women report significantly higher levels of distress than men in families with adverse reproductive outcomes, particularly the death of a child. Controlling for adverse reproductive outcomes sharply reduces the mental health gender-gap. Finally, mental health is strongly correlated with physical health for both men and women, but there is little evidence of a differential response by sex. We complement this empirical description with anthropological analysis based on ethnographic interviews with 100 men and 100 women. With the help of these ethnographic interviews we show how adverse life events for women are experienced as the inability to maintain the domestic, which seems to be at stake within their life worlds. We raise issues for further research on the apparent finding that the mental health of women and men are differentially affected by adverse reproductive events in the family in this sample. Copyright © 2012 Elsevier Ltd. All rights reserved.

First-principles study of Mn-S codoped anatase TiO2

NASA Astrophysics Data System (ADS)

Li, Senlin; Huang, Jinliang; Ning, Xiangmei; Chen, Yongcha; Shi, Qingkui

2018-04-01

In this work, the CASTEP program in Materials Studio 2017 software package was applied to calculate the electronic structures and optical properties of pure anatase TiO2, S-doped, Mn-doped and Mn-S co-doped anatase TiO2 by GGA + U methods based on the density function theory (DFT). The results indicate that the lattice is distorted and the lattice constant is reduce due to doping. The doping also introduces impurity energy levels into the forbidden band. After substitution of Mn for Ti atom, band gap narrowing of anatase TiO2 is caused by the impurity energy levels appearance in the near Fermi surface, which are contributed by Mn-3d orbital, Ti-3d orbital and O-2p orbital hybridization. After substitution of S for O atom, band gap narrowing is creited with the shallow accepter level under the conduction hand of S-3p orbital. The Mn-S co-doped anatase TiO2 could be a potential candidate for a photocatalyst because of tis enhanced absorption ability of visible light. The results can well explain the immanent cause of a band gap narrowing as well as a red shift in the spectrum for doped anatase TiO2.

Time Trends and Policy Gaps: The Case of Alcohol Misuse Among Adolescents in Lebanon

PubMed Central

Ghandour, Lilian; Afifi, Rima; Fares, Sonia; El Salibi, Noura; Rady, Alissar

2017-01-01

Background Monitoring studies are crucial for informing and reforming local policies. Objectives Using the Lebanon 2005 and 2011 Global School-based Student Health Surveys (GSHS), alcohol time trends were described, policy gaps were identified, and harm reduction policy recommendations were made. Methods In 2005 and 2011, 100 (n = 5109 students) and 44 (n = 2784 students) middle schools were surveyed, respectively. Self-reported cross-sectional data on alcohol use among 7–9th graders in private and public schools was collected including 30-day prevalence, lifetime drunkenness, alcohol-related problems, and sources of alcohol. Results In 2011, the majority (87%) had alcohol before turning 14. Between 2005 and 2011, past 30-day alcohol use had increased by 40% and lifetime drunkenness by 50% in the total sample (122% among females with a narrowing in the gender gap). Drinking was regular for more than a third of the past 30-day drinkers (drank two or more drinks on the days they drank). Male adolescents were more likely to obtain alcohol from “stores” or “through their friends” whereas females’ main source was their “family.” One in twenty reported experiencing alcohol-related problems (e.g., getting into fights with family/friends and skipping school). Conclusion/Importance Evidence-informed policy implications include enforcing a minimum legal drinking age, regulating alcohol advertising, and marketing particularly those targeting youth and women, and ensuring the availability of youth-friendly services. Public messages to increase awareness among all stakeholders including youth, their parents, and larger community are also needed. PMID:26646475

Global differences between women and men in the prevalence of obesity: is there an association with gender inequality?

PubMed

Garawi, F; Devries, K; Thorogood, N; Uauy, R

2014-10-01

In most populations the prevalence of obesity is greater in women than in men; however, the magnitude of the difference between the sexes varies significantly by country. We considered the role of gender inequality in explaining these disparities. We undertook an ecological analysis of internationally comparable obesity prevalence data to examine the association between indicators of gender inequality and the differences between men and women in obesity prevalence. Gender inequality was assessed using three measures: the Gender Inequality Index, the Global Gender Gap Index and the Social Institutions and Gender Index. We fitted multiple regression models to examine the association. We found that the prevalence of obesity across countries shows gendered patterning with greater prevalence and greater heterogeneity in women than in men (P<0.001). We also found that two of three measures of gender inequality were significantly associated with the sex differences in obesity prevalence across countries. The patterning of obesity across countries is gendered. However, the association between global measures of gender inequality and the sex gap in obesity is dependent on the measure used. Further research is needed to investigate the mechanisms that underpin the gendered nature of obesity prevalence.

Characteristics of Extra Narrow Gap Weld of HSLA Steel Welded by Single-Seam per Layer Pulse Current GMA Weld Deposition

NASA Astrophysics Data System (ADS)

Agrawal, B. P.; Ghosh, P. K.

2017-03-01

Butt weld joints are produced using pulse current gas metal arc welding process by employing the technique of centrally laid multi-pass single-seam per layer weld deposition in extra narrow groove of thick HSLA steel plates. The weld joints are prepared by using different combination of pulse parameters. The selection of parameter of pulse current gas metal arc welding is done considering a summarized influence of simultaneously interacting pulse parameters defined by a dimensionless hypothetical factor ϕ. The effect of diverse pulse parameters on the characteristics of weld has been studied. Weld joint is also prepared by using commonly used multi-pass multi-seam per layer weld deposition in conventional groove. The extra narrow gap weld joints have been found much superior to the weld joint prepared by multi-pass multi-seam per layer deposition in conventional groove with respect to its metallurgical characteristics and mechanical properties.

Understanding the MBA Gender Gap: Women Respond to Gender Norms by Reducing Public Assertiveness but Not Private Effort.

PubMed

Wallen, Aaron S; Morris, Michael W; Devine, Beth A; Lu, Jackson G

2017-08-01

Women's underperformance in MBA programs has been the subject of recent debate and policy interventions, despite a lack of rigorous evidence documenting when and why it occurs. The current studies document a performance gap, specifying its contours and contributing factors. Two behaviors by female students that may factor into the gap are public conformity and private internalization. We predicted that women conform to the norm associating maleness with technical prowess by minimizing their public assertiveness in class discussions and meetings, but that they do not internalize the norm by reducing private effort. Data from multiple cohorts of a top-ranked MBA program reveal female underperformance occurred in technical subjects (e.g., accounting), but not social subjects (e.g., marketing). As predicted, the gender effect ran not through private effort but through public assertiveness, even controlling for gender differences in interests and aptitudes. These findings support some current policy interventions while casting doubt on others.

The Gender Gap in Second Language Acquisition: Gender Differences in the Acquisition of Dutch among Immigrants from 88 Countries with 49 Mother Tongues

PubMed Central

van der Slik, Frans W. P.; van Hout, Roeland W. N. M.; Schepens, Job J.

2015-01-01

Gender differences were analyzed across countries of origin and continents, and across mother tongues and language families, using a large-scale database, containing information on 27,119 adult learners of Dutch as a second language. Female learners consistently outperformed male learners in speaking and writing proficiency in Dutch as a second language. This gender gap remained remarkably robust and constant when other learner characteristics were taken into account, such as education, age of arrival, length of residence and hours studying Dutch. For reading and listening skills in Dutch, no gender gap was found. In addition, we found a general gender by education effect for all four language skills in Dutch for speaking, writing, reading, and listening. Female language learners turned out to profit more from higher educational training than male learners do in adult second language acquisition. These findings do not seem to match nurture-oriented explanatory frameworks based for instance on a human capital approach or gender-specific acculturation processes. Rather, they seem to corroborate a nature-based, gene-environment correlational framework in which language proficiency being a genetically-influenced ability interacting with environmental factors such as motivation, orientation, education, and learner strategies that still mediate between endowment and acquiring language proficiency at an adult stage. PMID:26540465

Research-Based Assessment of Students' Beliefs about Experimental Physics: When is Gender a Factor?

NASA Astrophysics Data System (ADS)

Wilcox, Bethany R.; Lewandowski, H. J.

2016-12-01

The existence of gender differences in student performance on conceptual assessments and their responses to attitudinal assessments has been repeatedly demonstrated. This difference is often present in students' preinstruction responses and persists in their postinstruction responses. However, one area in which the presence of gender differences has not been extensively explored is undergraduate laboratory courses. For example, one of the few laboratory focused research-based assessments, the Colorado Learning Attitudes about Science Survey for Experimental Physics (E-CLASS), has not been tested for the existence of gender differences in students' responses. Here, we utilize a national data set of responses to the E-CLASS to determine if they demonstrate significant gender differences. We also investigate how these differences vary along multiple student and course demographic slices, including course level (first-year vs beyond-first-year) and major (physics vs nonphysics). We observe a gender gap in pre- and postinstruction E-CLASS scores in the aggregate data both for the overall score and for most items individually. However, for some subpopulations (e.g., beyond-first-year students) the size or even existence of the gender gap depends on another dimension (e.g., student major). We also find that for all groups the gap in postinstruction scores vanishes or is greatly reduced when controlling for preinstruction scores, course level, and student major.

Science Achievement Gaps by Gender and Race/Ethnicity in Elementary and Middle School: Trends and Predictors

ERIC Educational Resources Information Center

Quinn, David M.; Cooc, North

2015-01-01

Research on science achievement disparities by gender and race/ethnicity often neglects the beginning of the pipeline in the early grades. We address this limitation using nationally representative data following students from Grades 3 to 8. We find that the Black-White science test score gap (-1.07 SD in Grade 3) remains stable over these years,…

Impact of Interactive Engagement on Reducing the Gender Gap in Quantum Physics Learning Outcomes among Senior Secondary School Students

ERIC Educational Resources Information Center

Adegoke, Benson Adesina

2012-01-01

In this study, the author examines the extent to which an interactive engagement approach can reduce the gender gap in senior secondary school (SSS) (age 16-18 years) students' learning outcomes in quantum physics. One hundred and twenty one (male = 65; female = 56) SSS 3 students participated in this study. They were randomly selected from two…

Gender Gap in Mathematics and Physics in Chinese Middle Schools: A Case Study of A Beijing's District

ERIC Educational Resources Information Center

Li, Manli; Zhang, Yu; Wang, Yihan

2017-01-01

This study examines the gender gaps in mathematics and physics in Chinese middle schools. The data is from the Education Bureau management database which includes all middle school students who took high school entrance exam in a district of Beijing from 2006-2013. The ordinary least square model and quantile regression model are applied. This…

Understanding the Changing Dynamics of the Gender Gap in Undergraduate Engineering Majors: 1971-2011

ERIC Educational Resources Information Center

Sax, Linda J.; Kanny, M. Allison; Jacobs, Jerry A.; Whang, Hannah; Weintraub, Dayna S.; Hroch, Amber

2016-01-01

In this paper we examine the level and determinants of entering college students' plans to major in engineering. While the overall level of interest in engineering has fluctuated between 1971 and 2011, a very large gender gap in freshman interest remains. We find that the percent of first-year women who plan to major in engineering is roughly the…

An Empirical Analysis of the Gender Gap in Mathematics. NBER Working Paper No. 15430

ERIC Educational Resources Information Center

Fryer, Roland G., Jr.; Levitt, Steven D.

2009-01-01

We document and analyze the emergence of a substantial gender gap in mathematics in the early years of schooling using a large, recent, and nationally representative panel of children in the United States. There are no mean differences between boys and girls upon entry to school, but girls lose more than two-tenths of a standard deviation relative…

Gender Gap in the National College Entrance Exam Performance in China: A Case Study of a Typical Chinese Municipality

ERIC Educational Resources Information Center

Zhang, Yu; Tsang, Mun

2015-01-01

This is one of the first studies to investigate gender achievement gap in the National College Entrance Exam in a typical municipality in China, which is the crucial examination for the transition from high school to higher education in that country. Using ordinary least square model and quantile regression model, the study consistently finds that…

School Administrators' and Teachers' Perceptions of Single-Gender Classrooms in Coeducational Public Middle Schools within South Carolina

ERIC Educational Resources Information Center

Moore, Shemmicca M. B.

2015-01-01

The academic achievement gap between male and female students set in motion a flurry of initiatives to help address male underachievement. The amendments made to Title IX allowed single-gender education to become a viable option for addressing those gaps in achievement. After the adjustments made to Title IX, South Carolina led the nation in the…

Pathways to Science and Engineering Bachelor's Degrees for Men and Women.

PubMed

Legewie, Joscha; DiPrete, Thomas A

2014-02-18

Despite the striking reversal of the gender gap in educational attainment and the near-gender parity in math performance, women pursue science and engineering (S/E) degrees at much lower rates than their male peers do. Current efforts to increase the number of women in these fields focus on different life-course periods but lack a clear understanding of the importance of these periods and how orientations toward S/E fields develop over time. In this article, we examine the gendered pathways to a S/E bachelor's degree from middle school to high school and college based on a representative sample from the 1973 to 1974 birth cohort. Using a counterfactual decomposition analysis, we determine the relative importance of these different life-course periods and thereby inform the direction of future research and policy. Our findings confirm previous research that highlights the importance of early encouragement for gender differences in S/E degrees, but our findings also attest to the high school years as a decisive period for the gender gap, while challenging the focus on college in research and policy. Indeed, if female high school seniors had the same orientation toward and preparation for S/E fields as their male peers, the gender gap in S/E degrees would be closed by as much as 82 percent.

Media use and HIV/AIDS knowledge: a knowledge gap perspective.

PubMed

Bekalu, Mesfin Awoke; Eggermont, Steven

2014-12-01

Despite the widespread utilization of the mass media in HIV/AIDS prevention, little is known about the knowledge gap that results from disparities in mass media use. This study examined the relationship between HIV/AIDS-related mass media use and HIV/AIDS-related knowledge among urban and rural residents of northwestern Ethiopia. A hierarchical regression analysis indicated that HIV/AIDS-related mass media use has both sequestering and mainstreaming effects in certain segments of the study population, although it was not a significant predictor of HIV/AIDS-related knowledge in the total population. The knowledge gaps between individuals with high and low education and between individuals who experience high and low levels of interpersonal communication about HIV/AIDS narrowed as HIV/AIDS-related media use increased, but the gap between urban and rural residents widened. The widening gap could be explained by differences in perceptions of information salience and several theoretical assumptions. Current mass media information campaigns, which are often prepared and broadcast from urban centers, may not only fail to improve the HIV/AIDS knowledge of the rural populace but also put rural populations at a disadvantage relative to their urban counterparts. Communication interventions informed by socioecological models might be helpful to redress and/or narrow the widening knowledge gap between urban and rural residents. © The Author (2013). Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

Broad and Narrow Personality Traits Predicting Academic Achievement over Compulsory Schooling: A Cross-Sectional Study in Two Countries

ERIC Educational Resources Information Center

Zupancic, Maja; Kavcic, Tina; Slobodskaya, Helena R.; Akhmetova, Olga A.

2016-01-01

Incremental predictive value of 5 broad and 13 narrow personality traits for academic achievement over and beyond age, gender, parental education, and country was examined in Russian and Slovene 8- to 15-year-olds. Personality data were collected from mothers (Russia: N = 994, Slovenia: N = 624) and adolescents (Russia: N = 481, Slovenia: N = 310)…

Aerodynamic and acoustic effects of ventricular gap.

PubMed

Alipour, Fariborz; Karnell, Michael

2014-03-01

Supraglottic compression is frequently observed in individuals with dysphonia. It is commonly interpreted as an indication of excessive circumlaryngeal muscular tension and ventricular medialization. The purpose of this study was to describe the aerodynamic and acoustic impact of varying ventricular medialization in a canine model. Subglottal air pressure, glottal airflow, electroglottograph, acoustic signals, and high-speed video images were recorded in seven excised canine larynges mounted in vitro for laryngeal vibratory experimentation. The degree of gap between the ventricular folds was adjusted and measured using sutures and weights. Data were recorded during phonation when the ventricular gap was narrow, neutral, and large. Glottal resistance was estimated by measures of subglottal pressure and glottal flow. Glottal resistance increased systematically as ventricular gap became smaller. Wide ventricular gaps were associated with increases in fundamental frequency and decreases in glottal resistance. Sound pressure level did not appear to be impacted by the adjustments in ventricular gap used in this research. Increases in supraglottic compression and associated reduced ventricular width may be observed in a variety of disorders that affect voice quality. Ventricular compression may interact with true vocal fold posture and vibration resulting in predictable changes in aerodynamic, physiological, acoustic, and perceptual measures of phonation. The data from this report supports the theory that narrow ventricular gaps may be associated with disordered phonation. In vitro and in vivo human data are needed to further test this association. Copyright © 2014 The Voice Foundation. Published by Mosby, Inc. All rights reserved.

The NRSC and the FCC: Working To Change Policy and Procedure To Narrow the Distance between AM and FM.

ERIC Educational Resources Information Center

Huff, W. A. Kelly

In the mid-1980s, the National Association of Broadcasters (NAB) reformed the National Radio Systems Committee (NRSC) as a liaison between receiver manufacturers and amplitude modulation (AM) broadcasters to promote unity in upgrading AM transmission and reception, and to aid AM in narrowing the sound quality gap with frequency modulation (FM). In…

Women's Entry into Management: Trends in Earnings, Authority, and Valued among Salaried Managers.

ERIC Educational Resources Information Center

Jacobs, Jerry A.

1992-01-01

Earnings and authority differentials between male and female managers are analyzed with data from three sources for the period between 1970 and 1988. Results indicate that the sex gap in earnings among managers narrowed during this period, whereas the gap in authority remained constant. The implication of these results for theories of internal…

Single Sex Math Classes: What and for Whom? One School's Experiences.

ERIC Educational Resources Information Center

Durost, Richard A.

1996-01-01

Presque Isle (Maine) High School has offered a section of all-girls algebra for seven years. The intent was to narrow the gap between 11th-grade boys' and girls' math achievement scores and create a more comfortable learning atmosphere for girls. The achievement score gap has decreased from 72 to 16 points. (MLH)

Addressing Excellence Gaps in K-12 Education. Position Statement

ERIC Educational Resources Information Center

National Association for Gifted Children, 2015

2015-01-01

Since the passage of the No Child Left Behind Act in 2001, a major objective of federal and state education policy has been to narrow K-12 achievement gaps. This position statement notes that the available data suggest that the singular focus on the most struggling learners has resulted in meaningful progress in closing minimum-competency…

The Role of the Superintendent in Closing the Achievement Gap in Diverse Small School Districts

ERIC Educational Resources Information Center

Wright, Howell, Jr.; Harris, Sandra

2010-01-01

The purpose of this qualitative, narrative study was to investigate the role of the superintendent in leading the district to be more culturally proficient, resulting in the narrowing of the achievement gap in culturally diverse small districts. Eight superintendents of small school districts were purposefully selected based on their district size…

Close the Gap: A Multiple Case Study about the Decision-Making Process of Administrators in Ohio Districts

ERIC Educational Resources Information Center

Guthrie, Tammy Reutzel

2017-01-01

Research has identified evidenced-based practices and programs that are successful for increasing the learning outcomes of students with disabilities which in turn helps narrow the achievement gap between the student subgroup and non-disabled peers. Employing the identified practices has produced inconsistent results and led to a closer…

A narrower gap of grazing intensity. Reply to Fetzel et al. 2017. Seasonality constrains to livestock grazing intensity

USDA-ARS?s Scientific Manuscript database

Fetzel et al. (2017) globally mapped the gap between observed and potential grazing intensity (GI): the ratio between consumption by livestock and ANPP. Fetzel et al. (2017) estimated grazing land, forage production and livestock demand at a half-degree resolution. They mapped GI below 15% for most ...

More Than One Million Children Served: Reading Recovery Results, 2000-2001.

ERIC Educational Resources Information Center

Reading Recovery Council of North America, Columbus, OH.

A key premise of Reading Recovery is that early intervention in first grade is critical in long-term literacy achievement because the gap between lowest- and highest-achieving children is narrow in lower grades but widens in later elementary school. Reading Recovery closes this gap at the critical time in children's literacy learning before the…

Judging Student Achievement: Why Getting the Right Data Matters. An MPR/NCEA Policy Brief

ERIC Educational Resources Information Center

Anderson, Sharon; Fowler, Donna; Klein, Steve

2005-01-01

States are engaged in serious efforts to raise student achievement, paying particular attention to narrowing the achievement gap between high- and low-performing students that has persisted in public schools for decades. The achievement gap is particularly troubling because, all too often, those at low achievement levels are minority, special…

Is gender policy related to the gender gap in external cause and circulatory disease mortality? A mixed effects model of 22 OECD countries 1973–2008

PubMed Central

2012-01-01

Background Gender differences in mortality vary widely between countries and over time, but few studies have examined predictors of these variations, apart from smoking. The aim of this study is to investigate the link between gender policy and the gender gap in cause-specific mortality, adjusted for economic factors and health behaviours. Methods 22 OECD countries were followed 1973–2008 and the outcomes were gender gaps in external cause and circulatory disease mortality. A previously found country cluster solution was used, which includes indicators on taxes, parental leave, pensions, social insurances and social services in kind. Male breadwinner countries were made reference group and compared to earner-carer, compensatory breadwinner, and universal citizen countries. Specific policies were also analysed. Mixed effect models were used, where years were the level 1-units, and countries were the level 2-units. Results Both the earner-carer cluster (ns after adjustment for GDP) and policies characteristic of that cluster are associated with smaller gender differences in external causes, particularly due to an association with increased female mortality. Cluster differences in the gender gap in circulatory disease mortality are the result of a larger relative decrease of male mortality in the compensatory breadwinner cluster and the earner-carer cluster. Policies characteristic of those clusters were however generally related to increased mortality. Conclusion Results for external cause mortality are in concordance with the hypothesis that women become more exposed to risks of accident and violence when they are economically more active. For circulatory disease mortality, results differ depending on approach – cluster or indicator. Whether cluster differences not explained by specific policies reflect other welfare policies or unrelated societal trends is an open question. Recommendations for further studies are made. PMID:23145477

Campaigning on the welfare state: The impact of gender and gender diversity

PubMed Central

Ennser-Jedenastik, Laurenz

2017-01-01

Social policy matters have long been considered women’s issues. Extant research has documented a strong link between gender and the policies of the welfare state in the legislative, executive and electoral arenas. Yet what determines the strength of this association has largely been left unexplored. Drawing on tokenism theory, this article proposes gender diversity at the group level as a key explanatory factor. It hypothesizes that the gender gap in social policy diminishes as the female representation in a political party increases. To test this argument, it examines almost 8000 press releases issued by over 600 politicians during four election campaigns in Austria between 2002 and 2013. The analysis demonstrates that women talk more about social policy issues during election campaigns than men, but that this emphasis gap disappears for parties with a more equal gender balance. These results have important implications for our understanding of the politics of gender and social policy. PMID:28751817

Trends in Gender-based Health Inequality in a Transitional Society: A Historical Analysis of South Korea

PubMed Central

Chun, Heeran; Cho, Sung-Il; Khang, Young-Ho; Kang, Minah

2012-01-01

Objectives This study examined the trends in gender disparity in the self-rated health of people aged 25 to 64 in South Korea, a rapidly changing society, with specific attention to socio-structural inequality. Methods Representative sample data were obtained from six successive, nationwide Social Statistics Surveys of the Korean National Statistical Office performed during 1992 to 2010. Results The results showed a convergent trend in poor self-rated health between genders since 1992, with a sharper decline in gender disparity observed in younger adults (aged 25 to 44) than in older adults (aged 45 to 64). The diminishing gender gap seemed to be attributable to an increase in women's educational attainment levels and to their higher status in the labor market. Conclusions The study indicated the importance of equitable social opportunities for both genders for understanding the historical trends in the gender gap in the self-reported health data from South Korea. PMID:22509452

Effects of major-road vehicle speed and driver age and gender on left-turn gap acceptance.

PubMed

Yan, Xuedong; Radwan, Essam; Guo, Dahai

2007-07-01

Because the driver's gap-acceptance maneuver is a complex and risky driving behavior, it is a highly concerned topic for traffic safety and operation. Previous studies have mainly focused on the driver's gap acceptance decision itself but did not pay attention to the maneuver process and driving behaviors. Using a driving simulator experiment for left-turn gap acceptance at a stop-controlled intersection, this study evaluated the effects of major traffic speed and driver age and gender on gap acceptance behaviors. The experiment results illustrate relationships among drivers' left-turn gap decision, driver's acceleration rate, steering action, and the influence of the gap-acceptance maneuver on the vehicles in the major traffic stream. The experiment results identified an association between high crash risk and high traffic speed at stop-controlled intersections. The older drivers, especially older female drivers, displayed a conservative driving attitude as a compensation for reduced driving ability, but also showed to be the most vulnerable group for the relatively complex driving maneuvers.

Fatigue crack growth of 316NG austenitic stainless steel welds at 325 °C

NASA Astrophysics Data System (ADS)

Li, Y. F.; Xiao, J.; Chen, Y.; Zhou, J.; Qiu, S. Y.; Xu, Q.

2018-02-01

316NG austenitic stainless steel is a commonly-used material for primary coolant pipes of pressurized water reactor systems. These pipes are usually joined together by automated narrow gap welding process. In this study, welds were prepared by narrow gap welding on 316NG austenitic stainless steel pipes, and its microstructure of the welds was characterized. Then, fatigue crack growth tests were conducted at 325 °C. Precipitates enriched with Mn and Si were found in the fusion zone. The fatigue crack path was out of plane and secondary cracks initiated from the precipitate/matrix interface. A moderate acceleration of crack growth was also observed at 325°Cair and water (DO = ∼10 ppb) with f = 2 Hz.

High-Performance Polymer Solar Cell with Single Active Material of Fully Conjugated Block Copolymer Composed of Wide-Band gap Donor and Narrow-Band gap Acceptor Blocks.

PubMed

Lee, Ji Hyung; Park, Chang Geun; Kim, Aesun; Kim, Hyung Jong; Kim, Youngseo; Park, Sungnam; Cho, Min Ju; Choi, Dong Hoon

2018-06-06

We synthesized a novel fully conjugated block copolymer, P3, in which a wide-band gap donor block (P1) was connected to a narrow-band gap acceptor block (P2). As P3 contains P1 block with a wide bandgap and P2 block with a narrow bandgap, it exhibits a very wide complementary absorption. Transient photoluminescence measurement using P3 dilute solution demonstrated intramolecular charge transfer between the P1 block and the P2 block, which was not observed in a P1/P2 blend solution. A P3 thin film showed complete PL quenching because the photoinduced inter-/intramolecular charge transfer states were effectively formed. This phenomenon can play an important role in the photovoltaic properties of P3-based polymer solar cells. A single active material polymer solar cell (SAMPSC) fabricated from P3 alone exhibited a high power conversion efficiency (PCE) of 3.87% with a high open-circuit voltage of 0.93 V and a short-circuit current of 8.26 mA/cm 2 , demonstrating a much better performance than a binary P1-/P2-based polymer solar cell (PCE = 1.14%). This result facilitates the possible improvement of the photovoltaic performance of SAMPSCs by inducing favorable nanophase segregation between p- and n blocks. In addition, owing to the high morphological stability of the block copolymer, excellent shelf-life was observed in a P3-based SAMPSC compared with a P1/P2-based PSC.

A Low-Energy-Gap Thienochrysenocarbazole Dye for Highly Efficient Mesoscopic Titania Solar Cells: Understanding the Excited State and Charge Carrier Dynamics.

PubMed

Wang, Junting; Xie, Xinrui; Weng, Guorong; Yuan, Yi; Zhang, Jing; Wang, Peng

2018-05-09

Maintaining both a high external quantum efficiency and a large open-circuit photovoltage of dye-sensitized solar cells (DSSCs) is a crucial challenge in the process of developing narrow-energy-gap dyes for the capture of infrared solar photons. Herein, we report two donor-acceptor organic dyes, C294 and C295, with a polycyclic heteroaromatic unit, 6,11-dihydrothieno[3',2':8,9]chryseno[10,11,12,1-bcdefg]carbazole (TCC), as the central module of the electron donor, and ethylbenzothiadiazole-benzioc acid as the electron acceptor. The interfacial charge recombination was successfully mitigated by introducing an additional branched aliphatic chain in C295. Furthermore, the O⋅⋅⋅S nonbonding interaction between the oxygen atom of the alkoxy group and the sulfur atom of the thiophene in C295 controlled the conformation of C295, resulting in a narrow energy-gap. Time-resolved spectroscopic measurements on C294 and the model dye C272 indicated that the elevation of the HOMO energy level decreased the kinetics and yield of hole injection owing to a reduction in the driving force and that the shortened excited-state lifetime caused by the narrowing of the energy gap was unfavorable for electron injection. By fine tuning the composition of the electrolyte, C294 and C295 eventually achieved high power conversion efficiencies of 11.5 % and 12.4 %, respectively, under full sunlight of air mass 1.5 global conditions. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Nurture affects gender differences in spatial abilities.

PubMed

Hoffman, Moshe; Gneezy, Uri; List, John A

2011-09-06

Women remain significantly underrepresented in the science, engineering, and technology workforce. Some have argued that spatial ability differences, which represent the most persistent gender differences in the cognitive literature, are partly responsible for this gap(.) The underlying forces at work shaping the observed spatial ability differences revolve naturally around the relative roles of nature and nurture. Although these forces remain among the most hotly debated in all of the sciences, the evidence for nurture is tenuous, because it is difficult to compare gender differences among biologically similar groups with distinct nurture. In this study, we use a large-scale incentivized experiment with nearly 1,300 participants to show that the gender gap in spatial abilities, measured by time to solve a puzzle, disappears when we move from a patrilineal society to an adjoining matrilineal society. We also show that about one-third of the effect can be explained by differences in education. Given that none of our participants have experience with puzzle solving and that villagers from both societies have the same means of subsistence and shared genetic background, we argue that these results show the role of nurture in the gender gap in cognitive abilities.

Nurture affects gender differences in spatial abilities

PubMed Central

Hoffman, Moshe; Gneezy, Uri; List, John A.

2011-01-01

Women remain significantly underrepresented in the science, engineering, and technology workforce. Some have argued that spatial ability differences, which represent the most persistent gender differences in the cognitive literature, are partly responsible for this gap. The underlying forces at work shaping the observed spatial ability differences revolve naturally around the relative roles of nature and nurture. Although these forces remain among the most hotly debated in all of the sciences, the evidence for nurture is tenuous, because it is difficult to compare gender differences among biologically similar groups with distinct nurture. In this study, we use a large-scale incentivized experiment with nearly 1,300 participants to show that the gender gap in spatial abilities, measured by time to solve a puzzle, disappears when we move from a patrilineal society to an adjoining matrilineal society. We also show that about one-third of the effect can be explained by differences in education. Given that none of our participants have experience with puzzle solving and that villagers from both societies have the same means of subsistence and shared genetic background, we argue that these results show the role of nurture in the gender gap in cognitive abilities. PMID:21876159

Reducing the gender achievement gap in college science: a classroom study of values affirmation.

PubMed

Miyake, Akira; Kost-Smith, Lauren E; Finkelstein, Noah D; Pollock, Steven J; Cohen, Geoffrey L; Ito, Tiffany A

2010-11-26

In many science, technology, engineering, and mathematics disciplines, women are outperformed by men in test scores, jeopardizing their success in science-oriented courses and careers. The current study tested the effectiveness of a psychological intervention, called values affirmation, in reducing the gender achievement gap in a college-level introductory physics class. In this randomized double-blind study, 399 students either wrote about their most important values or not, twice at the beginning of the 15-week course. Values affirmation reduced the male-female performance and learning difference substantially and elevated women's modal grades from the C to B range. Benefits were strongest for women who tended to endorse the stereotype that men do better than women in physics. A brief psychological intervention may be a promising way to address the gender gap in science performance and learning.

Is `gender-sensitive education' a useful concept for educational policy?

NASA Astrophysics Data System (ADS)

Forde, Christine

2014-06-01

This article responds to Astrid Sinnes and Marianne Løken's article `Gendered education in a gendered world: Looking beyond cosmetic solutions to the gender gap in science' by exploring the idea of `gender-sensitive' education and its usefulness in educational policy. It draws on theoretical discussions of the concept of gender and of difference to consider ways in which `gender-sensitive' education might serve the task of promoting equality and justice.

Why is the sex gap in feelings of depression wider in high gender equity countries? The effect of children on the psychological well-being of men and women.

PubMed

Hopcroft, Rosemary L; McLaughlin, Julie

2012-05-01

This study uses data from 23 countries in the World Values Survey and the National Survey of Families and Households and finds that the sex gap in feelings of depression is wider in high gender equity societies even though overall levels of feelings of depression are lower. Using hierarchical logistic modeling, we find that the sex difference in feelings of depression is wider in high gender equity societies because children increase depression for women in high gender equity societies, while they reduce depression for women without paid employment in low gender equity societies. There is little difference in the effect of children on feelings of depression for men across societies. Copyright © 2011 Elsevier Inc. All rights reserved.

Observations and predictability of gap winds in a steep, narrow, fire-prone canyon in central Idaho, USA

NASA Astrophysics Data System (ADS)

Wagenbrenner, N. S.; Forthofer, J.; Gibson, C.; Lamb, B. K.

2017-12-01

Frequent strong gap winds were measured in a deep, steep, wildfire-prone river canyon of central Idaho, USA during July-September 2013. Analysis of archived surface pressure data indicate that the gap wind events were driven by regional scale surface pressure gradients. The events always occurred between 0400 and 1200 LT and typically lasted 3-4 hours. The timing makes these events particularly hazardous for wildland firefighting applications since the morning is typically a period of reduced fire activity and unsuspecting firefighters could be easily endangered by the onset of strong downcanyon winds. The gap wind events were not explicitly forecast by operational numerical weather prediction (NWP) models due to the small spatial scale of the canyon ( 1-2 km wide) compared to the horizontal resolution of operational NWP models (3 km or greater). Custom WRF simulations initialized with NARR data were run at 1 km horizontal resolution to assess whether higher resolution NWP could accurately simulate the observed gap winds. Here, we show that the 1 km WRF simulations captured many of the observed gap wind events, although the strength of the events was underpredicted. We also present evidence from these WRF simulations which suggests that the Salmon River Canyon is near the threshold of WRF-resolvable terrain features when the standard WRF coordinate system and discretization schemes are used. Finally, we show that the strength of the gap wind events can be predicted reasonably well as a function of the surface pressure gradient across the gap, which could be useful in the absence of high-resolution NWP. These are important findings for wildland firefighting applications in narrow gaps where routine forecasts may not provide warning for wind effects induced by high-resolution terrain features.

Adhesive micro-line periodicity determines guidance of axonal outgrowth†

PubMed Central

Huang, Yu; Fothergill, Thomas; Lumbard, Derek C.; Dent, Erik W.; Williams, Justin C.

2014-01-01

Adhesive micro-lines of various sub-cellular geometries were created using a non-traditional micro stamping technique. This technique employed the use of commercially available diffraction gratings as the molds for the micro stamps, a method which is quick and inexpensive, and which could easily be adopted as a patterning tool in a variety of research efforts. The atypical saw-tooth profile of the micro stamps enabled a unique degree of control and flexibility over patterned line and gap widths. Cortical neurons cultured on patterned poly-lysine micro-lines on PDMS exhibit a startling transition in axonal guidance: From the expected parallel guidance to an unexpected perpendicular guidance that becomes dominant as patterned lines and gaps become sufficiently narrow. This transition is most obvious when the lines are narrow relative to gaps, while the periodicity of the pattern is reduced. Axons growing perpendicular to micro-lines exhibited ‘vinculated’ growth, a unique morphological phenotype consisting of periodic orthogonal extensions along the axon. PMID:23250489

The Disappearing Gender Gap: The Impact of Divorce, Wages, and Preferences on Education Choices and Women's Work. NBER Working Paper No. 17508

ERIC Educational Resources Information Center

Fernandez, Raquel; Wong, Joyce Cheng

2011-01-01

Women born in 1935 went to college significantly less than their male counterparts and married women's labor force participation (LFP) averaged 40% between the ages of thirty and forty. The cohort born twenty years later behaved very differently. The education gender gap was eliminated and married women's LFP averaged 70% over the same ages. In…

To See the World or Stay at Home: Applying an Integrated Student Choice Model to Explore the Gender Gap in the Intent to Study Abroad

ERIC Educational Resources Information Center

Salisbury, Mark H.; Paulsen, Michael B.; Pascarella, Ernest T.

2010-01-01

Although interest in study abroad has grown consistently in recent decades, study abroad professionals and higher education scholars have been unable to explain or rectify the long-standing gender gap in study abroad participation. This study applies an integrated model of the student-choice construct to explore differences between male and female…

Explaining Gender Gaps in English Composition and College Algebra in College: The Mediating Role of Psychosocial Factors

ERIC Educational Resources Information Center

Ndum, Edwin; Allen, Jeff; Way, Jason; Casillas, Alex

2018-01-01

We examined the role of six psychosocial factors (PSFs) in explaining gender gaps in English Composition (n = 8,633) and College Algebra (n = 2,261) using data of first-year female (55%) and male students from 42 colleges. Using a multilevel model and controlling for prior achievement, we found that PSFs mediated between 3% and 41% of the gender…

Trends in Achievement Gaps in First-Year College Courses for Racial/Ethnic, Income, and Gender Subgroups: A 12-Year Study. ACT Research Report Series 2013 (8)

ERIC Educational Resources Information Center

Lorah, Julie; Ndum, Edwin

2013-01-01

Prior research has demonstrated gaps in the academic success of college student subgroups defined by race/ethnicity, income, and gender. We studied trends over time in the success of students in these subgroups in particular first-year college courses: English Composition I, College Algebra, social science courses, and Biology. The study is based…

Gender Gap in Maths Test Scores in South Korea and Hong Kong: Role of Family Background and Single-Sex Schooling

ERIC Educational Resources Information Center

Kim, Doo Hwan; Law, Helen

2012-01-01

In many industrialised societies, women remain underrepresented in the sciences, which can be predicted by the gender gap in math achievement at school. Using PISA 2006 data, we explore the role of family background and single-sex schooling in girls' disadvantage in maths in South Korea and Hong Kong. This disadvantage is found to be associated…

Gender and Social Class Differences in Japanese Mothers' Beliefs about Children's Education and Socialisation

ERIC Educational Resources Information Center

Yamamoto, Yoko

2016-01-01

Despite increasing rates of university attendance among women, a significant gender gap remains in socialisation and educational processes in Japan. To understand why and how gender-distinctive socialisation processes persist, this study aimed to examine both middle-class and working-class mothers' beliefs about gender, education, and children's…

Shirts and Skins: A Talk on Gender

ERIC Educational Resources Information Center

Baker, Lisa

2013-01-01

The article is a reprint of an address delivered by the author to students at Milton Academy in Milton, Massachusetts, in Fall 2012. It addresses the author's belief in the important role of schools in promoting gender equality, the gender gap in educational attainment, and the social construction of gender. The author stresses the importance of…

Gender Fairness within the Force Concept Inventory

ERIC Educational Resources Information Center

Traxler, Adrienne; Henderson, Rachel; Stewart, John; Stewart, Gay; Papak, Alexis; Lindell, Rebecca

2018-01-01

Research on the test structure of the Force Concept Inventory (FCI) has largely ignored gender, and research on FCI gender effects (often reported as "gender gaps") has seldom interrogated the structure of the test. These rarely crossed streams of research leave open the possibility that the FCI may not be structurally valid across…

Gender gap in parents' financing strategy for hospitalization of their children: evidence from India.

PubMed

Asfaw, Abay; Lamanna, Francesca; Klasen, Stephan

2010-03-01

The 'missing women' dilemma in India has sparked great interest in investigating gender discrimination in the provision of health care in the country. No studies, however, have directly examined discrimination in health-care financing strategies in the case of severe illness of sons versus daughters. In this paper, we hypothesize that households who face tight budget constraints are more likely to spend their meager resources on hospitalization of boys rather than girls. We use the 60th round of the Indian National Sample Survey (2004) and a multinomial logit model to test this hypothesis and to throw some light on this important but overlooked issue. The results reveal that boys are much more likely to be hospitalized than girls. When it comes to financing, the gap in the usage of household income and savings is relatively small, while the gender gap in the probability of hospitalization and usage of more onerous financing strategies is very high. Ceteris paribus, the probability of boys to be hospitalized by financing from borrowing, sale of assets, help from friends, etc. is much higher than that of girls. Moreover, in line with our theoretical framework, the results indicate that the gender gap intensifies as we move from the richest to poorest households. (c) 2009 John Wiley & Sons, Ltd.

The Civic Engagement Gap(s): Youth Participation and Inequality from 1976 to 2009

ERIC Educational Resources Information Center

Gaby, Sarah

2017-01-01

Civic participation in the United States is highly unequal, resulting in a "civic engagement gap" between socioeconomic, racial, and gender groups. Variation in civic participation and the civic engagement gap remain contested, primarily as a result of inconsistent definitions and measurement issues in previous work. Using consistent…

Non-proximity resonant tunneling in multi-core photonic band gap fibers: An efficient mechanism for engineering highly-selective ultra-narrow band pass splitters

NASA Astrophysics Data System (ADS)

Florous, Nikolaos J.; Saitoh, Kunimasa; Murao, Tadashi; Koshiba, Masanori; Skorobogatiy, Maksim

2006-05-01

The objective of the present investigation is to demonstrate the possibility of designing compact ultra-narrow band-pass filters based on the phenomenon of non-proximity resonant tunneling in multi-core photonic band gap fibers (PBGFs). The proposed PBGF consists of three identical air-cores separated by two defected air-holes which act as highly-selective resonators. With a fine adjustment of the design parameters associated with the resonant-air-holes, phase matching at two distinct wavelengths can be achieved, thus enabling very narrow-band resonant directional coupling between the input and the two output cores. The validation of the proposed design is ensured with an accurate PBGF analysis based on finite element modal and beam propagation algorithms. Typical characteristics of the proposed device over a single polarization are: reasonable short coupling length of 2.7 mm, dual bandpass transmission response at wavelengths of 1.339 and 1.357 μm, with corresponding full width at half maximum bandwidths of 1.2 nm and 1.1 nm respectively, and a relatively high transmission of 95% at the exact resonance wavelengths. The proposed ultra-narrow band-pass filter can be employed in various applications such as all-fiber bandpass/bandstop filtering and resonant sensors.