4,072 research outputs found
Spitzer Imaging of Herschel-ATLAS Gravitationally Lensed Submillimeter Sources
We present physical properties of two submillimeter selected gravitationally lensed sources, identified in the
Herschel Astrophysical Terahertz Large Area Survey. These submillimeter galaxies (SMGs) have flux densities
>100 mJy at 500 μm, but are not visible in existing optical imaging. We fit light profiles to each component of
the lensing systems in Spitzer IRAC 3.6 and 4.5 μm data and successfully disentangle the foreground lens from
the background source in each case, providing important constraints on the spectral energy distributions (SEDs)
of the background SMG at rest-frame optical–near-infrared wavelengths. The SED fits show that these two SMGs
have high dust obscuration with A_V ~ 4–5 and star formation rates of ~100M_⊙ yr^(−1). They have low gas fractions
and low dynamical masses compared with 850 μm selected galaxies
A motivational framework of personality development in late adulthood
Meta-analytic evidence shows that most personality traits tend to increase through early adulthood and middle age but decrease in late adulthood, whereas Emotional Stability continues to increase throughout late adulthood. We propose that these normative patterns of personality development can be explained by motivational theories of aging. Specifically, decreases in Extraversion, Agreeableness, Conscientiousness, and Openness to Experience may reflect a reduced capacity to control one's environment, whereas continued increases in Emotional Stability reflect increases in individual's ability to compensate and cope with age-graded losses. Pairing motivational theories of aging with longitudinal evidence in personality science provides an explanation for empirical patterns of personality trait development and raises interesting possibilities to promote healthy aging
Stability and change in personality and personality disorders
In this paper, we review recent findings related to stability and change in personality and personality disorder. Estimates of stability vary depending on a number of methodological and substantive factors. These factors include the type of stability being examined, the type of construct being assessed, the method being used to assess personality, how participants are sampled, and developmental trends in personality stability and change. We describe current evidence about personality stability with respect to each of these factors. We conclude that current gaps in the literature can be filled by more carefully attending to factors that impact estimates of stability and change, and provide recommendations about how future research can fill those gaps
Twelve tips for conducting a virtual OSCE
Recently many medical schools have faced the challenge of redesigning their existing assessments to run in a virtual format. We ran a virtual Objective Structured Clinical Examination (OSCE) for a group of final year students assessing clinical communication skills, written communication, practical skills, examination skills and professionalism. OSCEs provide the opportunity to test skills that written papers cannot, so it was important to include such a clinical exam in the portfolio of assessments for graduating students. The virtual OSCE ran smoothly and was successful at discriminating between candidates. In this article, we share twelve practical tips from our experience and the small body of literature on how to successfully design and deliver a virtual OSCE. This format provides an opportunity to run similar assessments in the future if remote assessments or assessments of telemedicine skills are required
Seasonal Variations in Water Quality Parameters of the Mississippi River near St. Cloud, MN
ABSTRACT - Water quality parameters were monitored in the Mississippi River and three tributaries (Harris Channel, Watab Creek, and Sauk River) from July 1980 to April 1981. Results were correlated with water temperature and discharge to assess seasonal changes. Effects of tributary inflow on the river were determined. Planktonic carbon was estimated with the firefly luciferin-luciferase system which measures adenosine triphosphate extracted from viable cells. Particulate organic matter, planktonic carbon, and percentage viable carbon were correlated with temperature (p ~ 0.6) while nitrate plus nitrite was inversely correlated with temperature and discharge. Only the Sauk River affected the water quality of the Mississippi River by adding elevated levels of dissolved electrolytes, total phosphorus, particulate organic matter, and planktonic carbon. Relatively low levels of planktonic carbon (155 μg/1) in the river indicated good water quality. Seasonal changes in water quality parameters of rivers must be considered in designing useful monitoring programs
Assessing Personality Change: Introduction to the Special Section
Both clinical and personality psychologists are interested in assessing personality change, although they have tended to approach the issue in different ways. In this paper we argue that both sub-fields should focus more on basic issues in the assessment of personality change, and that they would make more progress on this issue together than alone. This Special Section on the Assessment of Personality Change includes four papers by researchers working primarily in basic personality science. Each paper addresses specific ways to advance the assessment of personality change that have both basic and applied clinical relevance, but collectively they show how far the field still has to go
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