756 research outputs found
Global Impacts Report 2017
Our fifth Global Impacts Report reflects on the progress of the MSC over the past 20 years, examines the sustainability performance of certified fisheries around the world and highlights areas of future interest
The Need for Predatory Mortgage Education: Expert Views
This article describes the results of an exploratory study of predatory mortgage lending. The purposes were to gain insights into the salient characteristics of victims of predatory mortgage lending and identify the most effective means of victim protection in order to guide Extension efforts to educate consumers. Twelve mortgage-lending professionals were interviewed in-depth. They identified educational efforts by Extension educators and other nonprofit organizations as the best and most effective means of reducing the losses caused by predatory mortgage lending. Study findings can help Extension staff identify target audiences and the most effective educational strategies concerning predatory mortgage lending practices
Coherent Detector Arrays for Millimeter and Submillimeter Astronomy
Progress in many areas of astronomy requires large-area surveys and observations of
extended objects. This includes the cosmic microwave background, nearby galaxies, the
Milky Way, and regions of star-forming regions within our galaxy. The ability to carry
out such studies is critically dependent on the development of affordable high-sensitivity
focal plane arrays, for both spectral line and continuum observations. We discuss a
program for the next decade to develop such technology for ground-based and spacebased
millimeter and submillimeter astronomy. Appropriate technologies exist, but
significant effort is required to make the transition from simply replicating individual
pixels to approaching focal plane array design in an integrated fashion from feeds to
spectrometers for spectral analysis. This advance is essential to realize the full potential
of major new ground-based, suborbital, and future space facilities, and is relevant to the
RMS and EOS panels. The recommended budget for this activity is $65M
Multi-modal characterization of rapid anterior hippocampal volume increase associated with aerobic exercise.
The hippocampus has been shown to demonstrate a remarkable degree of plasticity in response to a variety of tasks and experiences. For example, the size of the human hippocampus has been shown to increase in response to aerobic exercise. However, it is currently unknown what underlies these changes. Here we scanned sedentary, young to middle-aged human adults before and after a six-week exercise intervention using nine different neuroimaging measures of brain structure, vasculature, and diffusion. We then tested two different hypotheses regarding the nature of the underlying changes in the tissue. Surprisingly, we found no evidence of a vascular change as has been previously reported. Rather, the pattern of changes is better explained by an increase in myelination. Finally, we show hippocampal volume increase is temporary, returning to baseline after an additional six weeks without aerobic exercise. This is the first demonstration of a change in hippocampal volume in early to middle adulthood suggesting that hippocampal volume is modulated by aerobic exercise throughout the lifespan rather than only in the presence of age related atrophy. It is also the first demonstration of hippocampal volume change over a period of only six weeks, suggesting gross morphometric hippocampal plasticity occurs faster than previously thought
Assessing inequities in heat pump adoption across the U.S
Electrifying space heating is essential to reduce climate impacts in the
building sector, and heat pumps have emerged as an energy-efficient and
increasingly cost-effective solution. However, other clean energy technologies
(e.g., rooftop solar) are less likely to be adopted in underserved communities,
and thus policies incentivizing their adoption can be regressive. Unlike
previously-studied technologies, the effects of heat pumps on energy bills may
be positive or negative, and thus inequities in their adoption are context
specific. Here we propose a framework for identifying inequities in heat pump
adoption and map these inequities across the U.S. We find that households in
communities of color and with high percentages of renters are adopting heat
pumps at lower rates across the board, but differences are largest in areas
where heat pumps are likely to reduce energy bills. Public policies must
address these inequities to advance beneficial electrification and energy
justice
Otolaryngology Consultations for COVID-19 Patients: A Retrospective Cohort Study of Indications, Interventions, and Considerations
OBJECTIVE: To identify differences in inpatient otolaryngology consultations and interventions for patients based on COVID-19.
METHODS: Records were reviewed for all patients for whom otolaryngology was consulted at a high-volume tertiary care hospital from April 30, 2020 to October 1, 2020. Demographic information, length of stay, COVID-19 status, indication for consultation, and otolaryngology interventions were recorded. Statistical analysis was performed using R software.
RESULTS: Bleeding composed a significantly higher proportion of otolaryngology consults in COVID-19 positive patients (28% vs. 8.4%, p
CONCLUSION: Bleeding and associated interventions comprised the predominant discrepancy between COVID-19 positive and negative patients in our cohort. We encourage routine use of simple and cost-effective methods to decrease risk of bleeding
Physical Conditions in Low Ionization Regions of the Orion Nebula
We reexamine the spectroscopic underpinnings of recent suggestions that [O I]
and [Fe II] lines from the Orion H II region are produced in gas where the
iron-carrying grains have been destroyed and the electron density is
surprisingly high. Our new observations show that previous detections of [O I]
5577 were dominated by telluric emission. Our limits are consistent with a
moderate density (10^4 cm^{-3}) photoionized gas. We show that a previously
proposed model of the Orion H II region reproduces the observed [O I] and [Fe
II] spectrum. These lines are fully consistent with formation in a dusty region
of moderate density.Comment: 12 pages, latex (aaspp4.sty), 1 figure. To appear in ApJ Letter
Improving survey methods in sero-epidemiological studies of injecting drug users: a case example of two cross sectional surveys in Serbia and Montenegro
BACKGROUND: Little is known about the prevalence of HIV or HCV in injecting drug users (IDUs) in Serbia and Montenegro. We measured prevalence of antibodies to HIV (anti-HIV) and hepatitis C virus (anti-HCV), and risk factors for anti-HCV, in community-recruited IDUs in Belgrade and Podgorica, and determined the performance of a parallel rapid HIV testing algorithm.
METHODS: Respondent driven sampling and audio-computer assisted survey interviewing (ACASI) methods were employed. Dried blood spots were collected for unlinked anonymous antibody testing. Belgrade IDUs were offered voluntary confidential rapid HIV testing using a parallel testing algorithm, the performance of which was compared with standard laboratory tests. Predictors of anti-HCV positivity and the diagnostic accuracy of the rapid HIV test algorithm were calculated.
RESULTS: Overall population prevalence of anti-HIV and anti-HCV in IDUs were 3% and 63% respectively in Belgrade (n = 433) and 0% and 22% in Podgorica (n = 328). Around a quarter of IDUs in each city had injected with used needles and syringes in the last four weeks. In both cities anti-HCV positivity was associated with increasing number of years injecting (eg Belgrade adjusted odds ratio (AOR) 5.6 (95% CI 3.2-9.7) and Podgorica AOR 2.5 (1.3-5.1) for >or= 10 years v 0-4 years), daily injecting (Belgrade AOR 1.6 (1.0-2.7), Podgorica AOR 2.1 (1.3-5.1)), and having ever shared used needles/syringes (Belgrade AOR 2.3 (1.0-5.4), Podgorica AOR 1.9 (1.4-2.6)). Half (47%) of Belgrade participants accepted rapid HIV testing, and there was complete concordance between rapid test results and subsequent confirmatory laboratory tests (sensitivity 100% (95%CI 59%-100%), specificity 100% (95%CI 98%-100%)).
CONCLUSION: The combination of community recruitment, ACASI, rapid testing and a linked diagnostic accuracy study provide enhanced methods for conducting blood borne virus sero-prevalence studies in IDUs. The relatively high uptake of rapid testing suggests that introducing this method in community settings could increase the number of people tested in high risk populations. The high prevalence of HCV and relatively high prevalence of injecting risk behaviour indicate that further HIV transmission is likely in IDUs in both cities. Urgent scale up of HIV prevention interventions is needed
- …
