Involved, Invisible, Ignored: The Experiences of Lesbian, Gay, Bisexual and Transgender Parents and Their Children in Our Nation's K-12 Schools

Current estimates suggest there are upwards of 7 million lesbian, gay, bisexual and transgender (LGBT) parents with dependent children in the United States, and it is likely that these numbers have been increasing over recent years. Yet little is known about the life experiences of this population of families in general and even less is know about the experiences of these families when interacting with their children's schools.This national study conducted by GLSEN in partnership with the Family Equality Council and COLAGE (Children of Lesbians and Gays Everywhere), examines and highlights the school experiences of LGBT-headed families using results from surveys of LGBT parents of children in K-12 schools and of secondary students who have LGBT parents.The study examines the family-school relationship, including family-school communication, parental involvement in school activities, parent-child discussions about school, parental role in educating school staff about LGBT families and the quality of treatment by school staff and by other members of the school community

Shared Differences: The Experiences of Lesbian, Gay, Bisexual and Transgender Students of Color in Our Nation's Schools

The report documents the school experiences of over 2,000 lesbian, gay, bisexual, and transgender (LGBT) U.S. middle and high school students of color who were African American or Black, Latino/a, Asian or Pacific Islander, Native American, and multiracial

Spontaneous patterns in coherently driven polariton microcavities

We consider a polariton microcavity resonantly driven by two external lasers which simultaneously pump both lower and upper polariton branches at normal incidence. In this setup, we study the occurrence of instabilities of the pump-only solutions towards the spontaneous formation of patterns. Their appearance is a consequence of the spontaneous symmetry breaking of translational and rotational invariance due to interaction induced parametric scattering. We observe the evolution between diverse patterns which can be classified as single-pump, where parametric scattering occurs at the same energy as one of the pumps, and as two-pump, where scattering occurs at a different energy. For two-pump instabilities, stripe and chequerboard patterns become the dominant steady-state solutions because cubic parametric scattering processes are forbidden. This contrasts with the single-pump case, where hexagonal patterns are the most common arrangements. We study the possibility of controlling the evolution between different patterns. Our results are obtained within a linear stability analysis and are confirmed by finite size full numerical calculations.Comment: 15 pages, 9 figure

The 2007 National School Climate Survey: The Experiences of Lesbian, Gay, Bisexual and Transgender Youth in Our Nation's Schools

GLSEN's National School Climate Survey is the only national survey to document the experiences of students who identify as lesbian, gay, bisexual and transgender (LGBT) in America's secondary schools. Conducted biennially since 1999, the National School Climate Survey (NSCS) fills a crucial void in our collective understanding of the contemporary high school experience. The results of this survey are intended to inform educators, policymakers and the public at large, as part of GLSEN's ongoing effort to ensure that all schools are places where students are free to learn, regardless of sexual orientation or gender identity/expression. The 2007 survey includes responses from 6,209 LGBT students between the ages of 13 and 21 from all 50 states and the District of Columbia. Data collection was conducted through community-based groups, online outreach, and targeted advertising on the social networking site MySpace.The 2007 NSCS results continue to track the endemic problem of name-calling, harassment and violence directed at LGBT students, while offering information about the impact of these experiences on academic performance and the effect of interventions designed to address the underlying problem. The 2007 NSCS paints a disturbing picture of the school experiences of LGBT students. However, it also provides further insight into the solutions for creating safer schools for all students

How does breakup influence the total fusion of 6,7^{6,7}Li at the Coulomb barrier?

Total (complete + incomplete) fusion excitation functions of $^{6,7}$Li on $^{59}$Co and $^{209}$Bi targets around the Coulomb barrier are obtained using a new continuum discretized coupled channel (CDCC) method of calculating fusion. The relative importance of breakup and bound-state structure effects on total fusion is particularly investigated. The effect of breakup on fusion can be observed in the total fusion excitation function. The breakup enhances the total fusion at energies just around the barrier, whereas it hardly affects the total fusion at energies well above the barrier. The difference between the experimental total fusion cross sections for $^{6,7}$Li on $^{59}$Co is notably caused by breakup, but this is not the case for the $^{209}$Bi target.Comment: 9 pages, 9 figures, Submitted to Phys. Rev.

Harsh Realities: The Experiences of Transgender Youth in Our Nation's Schools

Using data from GLSEN's fifth National School Climate Survey, this report documents the school experiences of 295 transgender middle and high school students and finds that these students face extremely high levels of victimization, even more so than their non-transgender lesbian, gay and bisexual peers

XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen)

We report the results from the temporal and spectral analysis of an XMM-Newton observation of Nova Centauri 1986 (V842 Cen). We detect a period at 3.51$\pm$0.4 h in the EPIC data and at 4.0$\pm$0.8 h in the OM data. The X-ray spectrum is consistent with the emission from an absorbed thin thermal plasma with a temperature distribution given by an isobaric cooling flow. The maximum temperature of the cooling flow model is $kT_{max}=43_{-12}^{+23}$ keV. Such a high temperature can be reached in a shocked region and, given the periodicity detected, most likely arises in a magnetically-channelled accretion flow characteristic of intermediate polars. The pulsed fraction of the 3.51 h modulation decreases with energy as observed in the X-ray light curves of magnetic CVs, possibly due either to occultation of the accretion column by the white dwarf body or phase-dependent to absorption. We do not find the 57 s white dwarf spin period, with a pulse amplitude of 4 mmag, reported by Woudt et al. (2009) either in the Optical Monitor (OM) data, which are sensitive to pulse amplitudes $\gtrsim$ 0.03 magnitudes, or the EPIC data, sensitive to pulse fractions $p \gtrsim$ 14 $\pm$2%.Comment: 5 pages, 3 figures; MNRAS, accepte

The 2009 National School Climate Survey: The Experiences of Lesbian, Gay, Bisexual and Transgender Youth in Our Nation's Schools

National survey of the school experiences of 7,261 lesbian, gay, bisexual and trasngender secondary school students.In our 2009 survey, we examine the experiences of LGBT students with regard to indicators of negative school climate:hearing biased remarks, including homophobic remarks, in school;feeling unsafe in school because of personal characteristics, such as sexual orientation, gender expression, or race/ethnicity;missing classes or days of school because of safety reasons; andexperiences of harassment and assault in school. We also examine the possible negative effects of a hostile school climate on LGBT students' academic achievement, educational aspirations, and psychological well-being. We explore the diverse nature of LGBT students' experiences by reporting on how these differ by students' personal and community characteristics. We also examine whether or not students report experiences of victimization to school officials or to family members and how these adults address the problem. In addition, we demonstrate the degree to which LGBT students have access to supportive resources in school, and we explore the possible benefits of these resources, including Gay-Straight Alliances (GSAs), school harassment/assault policies, supportive school staff, and curriculum that is inclusive of LGBT-related topics.Given that we now have 10 years of data, we examine changes over the past decade on both indicators of negative school climate and levels of access to LGBT-related resources in schools

Vacuum-UV spectroscopy of interstellar ice analogs. II. Absorption cross-sections of nonpolar ice molecules

Dust grains in cold circumstellar regions and dark-cloud interiors at 10-20 K are covered by ice mantles. A nonthermal desorption mechanism is invoked to explain the presence of gas-phase molecules in these environments, such as the photodesorption induced by irradiation of ice due to secondary ultraviolet photons. To quantify the effects of ice photoprocessing, an estimate of the photon absorption in ice mantles is required. In a recent work, we reported the vacuum-ultraviolet (VUV) absorption cross sections of nonpolar molecules in the solid phase. The aim was to estimate the VUV-absorption cross sections of nonpolar molecular ice components, including CH4, CO2, N2, and O2. The column densities of the ice samples deposited at 8 K were measured in situ by infrared spectroscopy in transmittance. VUV spectra of the ice samples were collected in the 120-160 nm (10.33-7.74 eV) range using a commercial microwave-discharged hydrogen flow lamp. We found that, as expected, solid N2 has the lowest VUV-absorption cross section, which about three orders of magnitude lower than that of other species such as O2, which is also homonuclear. Methane (CH4) ice presents a high absorption near Ly-alpha (121.6 nm) and does not absorb below 148 nm. Estimating the ice absorption cross sections is essential for models of ice photoprocessing and allows estimating the ice photodesorption rates as the number of photodesorbed molecules per absorbed photon in the ice.Comment: 9 pages, 6 figures, 7 table