“Being believed, being seen, not being questioned”: Bisexual women’s experiences of validity while passing as heterosexual

Abstract The current study explored bisexual cisgender women’s experiences regarding passing as heterosexual, which Dyar et al. (2014) defined as the perception that one’s bisexual identity can be concealable and that bisexual individuals can choose to appear heterosexual with different-gender partners to avoid heterosexism. Utilizing intersectionality (Crenshaw, 1989/1993) and Brown’s (2002) bisexual identity development model as the theoretical framework, the present study related passing as heterosexual to bisexual individuals’ identity validity while exploring factors that facilitate or hinder this process. This qualitative study explored the experiences of 12 bisexual cisgender adult women through semi-structured interviews in the constructivist-interpretivist paradigm (Ponterotto, 2005). Interviews were conducted using Skype or phone and analyzed using Interpretive Phenomenological Analysis (IPA) methodology (Smith & Osborn, 2008). Emerging themes were discussed with support from participants’ quotes regarding their experiences. Themes included factors related to passing as heterosexual as well as the impact of intersectionality on decision-making for coming out versus continuing to pass. Themes also captured validity-hindering factors (assumptions of heterosexuality, experiences of invalidation, and negative relationships with the LGBTQIA+ community) and validity-facilitating factors (specific experiences of external and internal validation, recommendations for others). Clinical implications informed by an intersectional focus and limitations of the study were also discussed

GPI spectra of HR 8799 c, d, and e from 1.5 to 2.4μ\mum with KLIP Forward Modeling

We explore KLIP forward modeling spectral extraction on Gemini Planet Imager coronagraphic data of HR 8799, using PyKLIP and show algorithm stability with varying KLIP parameters. We report new and re-reduced spectrophotometry of HR 8799 c, d, and e in H & K bands. We discuss a strategy for choosing optimal KLIP PSF subtraction parameters by injecting simulated sources and recovering them over a range of parameters. The K1/K2 spectra for HR 8799 c and d are similar to previously published results from the same dataset. We also present a K band spectrum of HR 8799 e for the first time and show that our H-band spectra agree well with previously published spectra from the VLT/SPHERE instrument. We show that HR 8799 c and d show significant differences in their H & K spectra, but do not find any conclusive differences between d and e or c and e, likely due to large error bars in the recovered spectrum of e. Compared to M, L, and T-type field brown dwarfs, all three planets are most consistent with mid and late L spectral types. All objects are consistent with low gravity but a lack of standard spectra for low gravity limit the ability to fit the best spectral type. We discuss how dedicated modeling efforts can better fit HR 8799 planets' near-IR flux and discuss how differences between the properties of these planets can be further explored.Comment: Accepted to AJ, 25 pages, 16 Figure

GPI Spectra of HR 8799 c, d, and e from 1.5 To 2.4 μm with KLIP Forward Modeling

We explore KLIP forward modeling spectral extraction on Gemini Planet Imager coronagraphic data of HR 8799, using PyKLIP, and show algorithm stability with varying KLIP parameters. We report new and re-reduced spectrophotometry of HR 8799 c, d, and e in the H and K bands. We discuss a strategy for choosing optimal KLIP PSF subtraction parameters by injecting simulated sources and recovering them over a range of parameters. The K1/K2 spectra for HR 8799 c and d are similar to previously published results from the same data set. We also present a K-band spectrum of HR 8799 e for the first time and show that our H-band spectra agree well with previously published spectra from the VLT/SPHERE instrument. We show that HR 8799 c and d show significant differences in their H and K spectra, but do not find any conclusive differences between d and e, nor between c and e, likely due to large error bars in the recovered spectrum of e. Compared to M-, L-, and T-type field brown dwarfs, all three planets are most consistent with mid- and late-L spectral types. All objects are consistent with low gravity, but a lack of standard spectra for low gravity limit the ability to fit the best spectral type. We discuss how dedicated modeling efforts can better fit HR 8799 planets\u27 near-IR flux, as well as how differences between the properties of these planets can be further explored

Direct Imaging of the HD 35841 Debris Disk: a Polarized Dust Ring from Gemini Planet Imager and an Outer Halo From \u3ci\u3eHST/\u3c/i\u3eSTIS

We present new high resolution imaging of a light-scattering dust ring and halo around the young star HD 35841. Using spectroscopic and polarimetric data from the Gemini Planet Imager in H-band (1.6 μm), we detect the highly inclined (i = 85°) ring of debris down to a projected separation of ∼12 au (∼0.″12) for the first time. Optical imaging from HST/STIS shows a smooth dust halo extending outward from the ring to \u3e140 au (\u3e1.″4). We measure the ring\u27s scattering phase function and polarization fraction over scattering angles of 22°-125°, showing a preference for forward scattering and a polarization fraction that peaks at ∼30% near the ansae. Modeling of the scattered-light disk indicates that the ring spans radii of ∼60-220 au, has a vertical thickness similar to that of other resolved dust rings, and contains grains as small as 1.5 μm in diameter. These models also suggest the grains have a low porosity, are more likely to consist of carbon than astrosilicates, and contain significant water ice. The halo has a surface brightness profile consistent with that expected from grains pushed by radiation pressure from the main ring onto highly eccentric but still bound orbits. We also briefly investigate arrangements of a possible inner disk component implied by our spectral energy distribution models, and speculate about the limitations of Mie theory for doing detailed analyses of debris disk dust populations

LSST: from Science Drivers to Reference Design and Anticipated Data Products

(Abridged) We describe here the most ambitious survey currently planned in the optical, the Large Synoptic Survey Telescope (LSST). A vast array of science will be enabled by a single wide-deep-fast sky survey, and LSST will have unique survey capability in the faint time domain. The LSST design is driven by four main science themes: probing dark energy and dark matter, taking an inventory of the Solar System, exploring the transient optical sky, and mapping the Milky Way. LSST will be a wide-field ground-based system sited at Cerro Pach\'{o}n in northern Chile. The telescope will have an 8.4 m (6.5 m effective) primary mirror, a 9.6 deg$^2$ field of view, and a 3.2 Gigapixel camera. The standard observing sequence will consist of pairs of 15-second exposures in a given field, with two such visits in each pointing in a given night. With these repeats, the LSST system is capable of imaging about 10,000 square degrees of sky in a single filter in three nights. The typical 5$\sigma$ point-source depth in a single visit in $r$ will be $\sim 24.5$ (AB). The project is in the construction phase and will begin regular survey operations by 2022. The survey area will be contained within 30,000 deg$^2$ with $\delta<+34.5^\circ$, and will be imaged multiple times in six bands, $ugrizy$, covering the wavelength range 320--1050 nm. About 90\% of the observing time will be devoted to a deep-wide-fast survey mode which will uniformly observe a 18,000 deg$^2$ region about 800 times (summed over all six bands) during the anticipated 10 years of operations, and yield a coadded map to $r\sim27.5$. The remaining 10\% of the observing time will be allocated to projects such as a Very Deep and Fast time domain survey. The goal is to make LSST data products, including a relational database of about 32 trillion observations of 40 billion objects, available to the public and scientists around the world.Comment: 57 pages, 32 color figures, version with high-resolution figures available from https://www.lsst.org/overvie

Modeling mitochondrial dysfunctions in the brain: from mice to men

The biologist Lewis Thomas once wrote: “my mitochondria comprise a very large proportion of me. I cannot do the calculation, but I suppose there is almost as much of them in sheer dry bulk as there is the rest of me”. As humans, or indeed as any mammal, bird, or insect, we contain a specific molecular makeup that is driven by vast numbers of these miniscule powerhouses residing in most of our cells (mature red blood cells notwithstanding), quietly replicating, living independent lives and containing their own DNA. Everything we do, from running a marathon to breathing, is driven by these small batteries, and yet there is evidence that these molecular energy sources were originally bacteria, possibly parasitic, incorporated into our cells through symbiosis. Dysfunctions in these organelles can lead to debilitating, and sometimes fatal, diseases of almost all the bodies’ major organs. Mitochondrial dysfunction has been implicated in a wide variety of human disorders either as a primary cause or as a secondary consequence. To better understand the role of mitochondrial dysfunction in human disease, a multitude of pharmacologically induced and genetically manipulated animal models have been developed showing to a greater or lesser extent the clinical symptoms observed in patients with known and unknown causes of the disease. This review will focus on diseases of the brain and spinal cord in which mitochondrial dysfunction has been proven or is suspected and on animal models that are currently used to study the etiology, pathogenesis and treatment of these diseases

The Work of a Revolutionary: A Psychobiography and Careerography of Angela Y. Davis

Dr. Angela Y. Davis is a political activist, academician, and writer who has navigated and discussed issues of race, class, gender, and USA social policies across her 75 years of life. Davis’s activism established her as the icon of a larger social movement and further related to her decision-making and legacy. Using psychobiographical methods, data were gathered through publicly available sources to explore Davis’s personal, professional, and representational life, as well as understand Davis’s lived experience through a socio-cultural-historical perspective. Two established theories, Social Cognitive Career Theory and Politicized Collective Identity model, were applied to Davis’s life. Findings suggested that in addition to her unique intersectional identities, a confluence of factors including growing up in a family of activists, incarceration, Federal Bureau of Investigation (FBI) surveillance, Communist Party involvement, marginalization within activist spaces, and practicing radical self-care impacted Davis committing to a life as an activist, academic, and the leader of a social movement

Assessing the performance of the European Union in Central and Eastern Europe and in its neighbourhood

Introduction to: East European Politics Special Issue: Assessing the Performance of the European Union in Central and Eastern Europe and in its Neighbourhood. The goal of this Special Issue is to examine the performance of EU policies and processes as well as their impact in the ‘wider’ Eastern Europe. We make both a conceptual and an empirical contribution. Conceptually, we link the literature on EU policy and its impact in ‘wider’ Eastern Europe with the literature on performance and distinguish between processdriven and outcome-driven performance of the EU. Under process-driven performance we evaluate the nature of the capabilities and the mechanisms and procedures used by the European Union in order to pursue its stated objectives. Subsequently, under outcome-driven performance we examined whether or not EU goals or objectives have been achieved on the basis of the effects these have. Drawing on insights from enlargement, post-enlargement and ENP partner countries, the empirical contributions to this volume examine both the processdriven and outcome-driven performance of the EU through addressing two sets of questions: (1) what is the correlation between the EU's outcome-driven performance and its internal processes of preference formation (process-driven performance)?; and (2) what is the relationship between the EU’s outcome-driven performance and the context of rewards/threats through which the EU engages with its partners? This introductory article therefore unpacks the notion of performance, proposes three modes of operationalization of performance and provides insights from the contributions to this Special Issue