1,795 research outputs found
Bystander Intervention and Campus Culture: College Counselors’ Perceptions and Roles in Addressing Sexual Assault on Campus
Sexual assault remains a critical issue on university campuses, necessitating effective intervention strategies to ensure a safer environment for students. This study investigates college counselors' perceptions of bystander intervention and their roles in mitigating sexual assault incidents within campus communities. Through semi-structured interviews with experienced college counselors, the research explores the challenges and opportunities in bystander intervention initiatives and the potential support and empowerment of students by counselors. The findings indicate that while counselors acknowledge the importance of bystander intervention, they face challenges including cultural barriers, inadequate training, and institutional constraints. The study recommends enhancing counselor training and integrating bystander intervention strategies into counseling services to significantly improve the prevention of sexual assault on campuses. This research enriches the understanding of college counselors' perspectives on combating sexual violence and offers suggestions for improving bystander intervention programs in higher education
Social and Emotional Barriers in Online Graduate Counseling Programs: Recommendations for Effective Practice for Working with Hispanic Adult Learners
Hispanic learners in higher education face unique challenges and barriers to success. An understanding of Adult Learning Theory through the lens of Hispanic culture is imperative, particularly in relation to both social and emotional barriers that are likely to disrupt the graduate learning process. The responsibility to effectively lead and educate such learners falls into the hands of counselor educators in higher education. When considering ethnic diversity among adult learners, it is imperative to explore effective practice methodologies for students from specific cultures/ethnic origins. The purpose of this semi-systematic review was to explore the case of Jen, a Hispanic/Latina graduate student enrolled in an online masters in clinical mental health counseling program, and to synthesize implications for effective practice in educating and working with Hispanic students
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Formation of pedestalled, relict lakes on the McMurdo Ice Shelf, Antarctica
ABSTRACTSurface debris covers much of the western portion of the McMurdo Ice Shelf and has a strong influence on the local surface albedo and energy balance. Differential ablation between debris-covered and debris-free areas creates an unusual heterogeneous surface of topographically low, high-ablation, and topographically raised (‘pedestalled’), low-ablation areas. Analysis of Landsat and MODIS satellite imagery from 1999 to 2018, alongside field observations from the 2016/2017 austral summer, shows that pedestalled relict lakes (‘pedestals’) form when an active surface meltwater lake that develops in the summer, freezes-over in winter, resulting in the lake-bottom debris being masked by a high-albedo, superimposed, ice surface. If this ice surface fails to melt during a subsequent melt season, it experiences reduced surface ablation relative to the surrounding debris-covered areas of the ice shelf. We propose that this differential ablation, and resultant hydrostatic and flexural readjustments of the ice shelf, causes the former supraglacial lake surface to become increasingly pedestalled above the lower topography of the surrounding ice shelf. Consequently, meltwater streams cannot flow onto these pedestalled features, and instead divert around them. We suggest that the development of pedestals has a significant influence on the surface-energy balance, hydrology and flexure of the ice shelf.Ia
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Diurnal seismicity cycle linked to subsurface melting on an ice shelf
ABSTRACTSeismograms acquired on the McMurdo Ice Shelf, Antarctica, during an Austral summer melt season (November 2016–January 2017) reveal a diurnal cycle of seismicity, consisting of hundreds of thousands of small ice quakes limited to a 6–12 hour period during the evening, in an area where there is substantial subsurface melting. This cycle is explained by thermally induced bending and fracture of a frozen surface superimposed on a subsurface slush/water layer that is supported by solar radiation penetration and absorption. A simple, one-dimensional model of heat transfer driven by observed surface air temperature and shortwave absorption reproduces the presence and absence (as daily weather dictated) of the observed diurnal seismicity cycle. Seismic event statistics comparing event occurrence with amplitude suggest that the events are generated in a fractured medium featuring relatively low stresses, as is consistent with a frozen surface superimposed on subsurface slush. Waveforms of the icequakes are consistent with hydroacoustic phases at frequency and flexural-gravity waves at frequency . Our results suggest that seismic observation may prove useful in monitoring subsurface melting in a manner that complements other ground-based methods as well as remote sensing.</jats:p
The use of routine outcome measures in two child and adolescent mental health services: a completed audit cycle
Background: Routine outcome measurement (ROM) is important for assessing the clinical effectiveness of health services and for monitoring patient outcomes. Within Child and Adolescent Mental Health Services (CAMHS) in the UK the adoption of ROM in CAMHS has been supported by both national and local initiatives (such as government strategies, local commissioning policy, and research). Methods: With the aim of assessing how these policies and initiatives may have influenced the uptake of ROM within two different CAMHS we report the findings of two case-note audits: a baseline audit conducted in January 2011 and a re-audit conducted two years later in December 2012-February 2013. Results: The findings show an increase in both the single and repeated use of outcome measures from the time of the original audit, with repeated use (baseline and follow-up) of the Health of the Nation Outcome Scale for Children and Adolescents (HoNOSCA) scale increasing from 10% to 50% of cases. Re-audited case-notes contained more combined use of different outcome measures, with greater consensus on which measures to use. Outcome measures that were applicable across a wide range of clinical conditions were more likely to be used than symptom-specific measures, and measures that were completed by the clinician were found more often than measures completed by the service user. Conclusions: The findings show a substantial improvement in the use of outcome measures within CAMHS. These increases in use were found across different service organisations which were subject to different types of local service priorities and drivers
Ten per cent polarized optical emission from GRB 090102
The nature of the jets and the role of magnetic fields in gamma-ray bursts
(GRB) remains unclear. In a baryon-dominated jet only weak, tangled fields
generated in situ through shocks would be present. In an alternative model,
jets are threaded with large scale magnetic fields that originate at the
central engine and which accelerate and collimate the jets. The way to
distinguish between the models is to measure the degree of polarization in
early-time emission, however previous claims of gamma-ray polarization have
been controversial. Here we report that the early optical emission from GRB
090102 was polarized at the level of P=10+/-1%, indicating the presence of
large-scale fields originating in the expanding fireball. If the degree of
polarization and its position angle were variable on timescales shorter than
our 60-s exposure, then the peak polarization may have been larger than 10 per
cent.Comment: 16 pages, 4 figures. Published in Nature (2009), Vol. 462, p767-76
ITI-007 demonstrates brain occupancy at serotonin 5-HT2A and dopamine D2 receptors and serotonin transporters using positron emission tomography in healthy volunteers
© 2015 Springer-Verlag Berlin Heidelberg.Rationale: Central modulation of serotonin and dopamine underlies efficacy for a variety of psychiatric therapeutics. ITI-007 is an investigational new drug in development for treatment of schizophrenia, mood disorders, and other neuropsychiatric disorders. Objectives: The purpose of this study was to determine brain occupancy of ITI-007 at serotonin 5-HT2A receptors, dopamine D2 receptors, and serotonin transporters using positron emission tomography (PET) in 16 healthy volunteers. Methods: Carbon-11-MDL100907, carbon-11-raclopride, and carbon-11-3-amino-4-(2-dimethylaminomethyl-phenylsulfanyl)-benzonitrile) (carbon-11-DASB) were used as the radiotracers for imaging 5-HT2A receptors, D2 receptors, and serotonin transporters, respectively. Brain regions of interest were outlined using magnetic resonance tomography (MRT) with cerebellum as the reference region. Binding potentials were estimated by fitting a simplified reference tissue model to the measured tissue-time activity curves. Target occupancy was expressed as percent change in the binding potentials before and after ITI-007 administration. Results: Oral ITI-007 (10-40 mg) was safe and well tolerated. ITI-007 rapidly entered the brain with long-lasting and dose-related occupancy. ITI-007 (10 mg) demonstrated high occupancy (>80 %) of cortical 5-HT2A receptors and low occupancy of striatal D2 receptors (~12 %). D2 receptor occupancy increased with dose and significantly correlated with plasma concentrations (r 2∈=∈0.68, p∈=∈0.002). ITI-007 (40 mg) resulted in peak occupancy up to 39 % of striatal D2 receptors and 33 % of striatal serotonin transporters. Conclusions: The results provide evidence for a central mechanism of action via dopaminergic and serotonergic pathways for ITI-007 in living human brain and valuable information to aid dose selection for future clinical trials
Calving and rifting on the McMurdo Ice Shelf, Antarctica
ABSTRACTOn 2 March 2016, several small en échelon tabular icebergs calved from the seaward front of the McMurdo Ice Shelf, and a previously inactive rift widened and propagated by ~3 km, ~25% of its previous length, setting the stage for the future calving of a ~14 km2 iceberg. Within 24 h of these events, all remaining land-fast sea ice that had been stabilizing the ice shelf broke-up. The events were witnessed by time-lapse cameras at nearby Scott Base, and put into context using nearby seismic and automatic weather station data, satellite imagery and subsequent ground observation. Although the exact trigger of calving and rifting cannot be identified definitively, seismic records reveal superimposed sets of both long-period (>10 s) sea swell propagating into McMurdo Sound from storm sources beyond Antarctica, and high-energy, locally-sourced, short-period (<10 s) sea swell, in the 4 days before the fast ice break-up and associated ice-shelf calving and rifting. This suggests that sea swell should be studied further as a proximal cause of ice-shelf calving and rifting; if proven, it suggests that ice-shelf stability is tele-connected with far-field storm conditions at lower latitudes, adding a global dimension to the physics of ice-shelf break-up.</jats:p
Sustainable Design for Oyster Reef Restoration
Due to over harvesting and habitat destruction 85% of oyster reef populations have been lost globally over the past several decades. Apart from being a keystone species, oysters provide many ecosystem services that make them near perfect for living shorelines; a recent ecological engineering design strategy that naturally stabilizes the shoreline as well as provides protection for intertidal environments. Oyster reefs increase wave attenuation protecting the shoreline environment from intense wave action in addition to the reef\u27s ability to cause sediment accretion; not just protecting shoreline environments but expanding them as well. Oysters produce baby oysters called spat that require a substrate to attach to in order to grow. Ordinarily, other oysters in the reef provide such substrate but with reef populations being over-harvested, much of the spat doesn\u27t have an appropriate surface to bind to. In the ACE Basin area a lack of substrate rather than spat is hindering oyster reef development. In an attempt to protect coastal shorelines as well as rehabilitate oyster reef populations within the ACE Basin area lightweight, biologically-compatible structures have been designed and implemented to provide the necessary substrate for oyster spat attachment
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