8,165 research outputs found

    Ready4Work In Brief Interim Outcomes Are In: Recidivism at Half the National Average

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    This issue of "P/PV In Brief' reviews interim outcomes from the Ready4Work prisoner reentry initiative. Funded by the US Department of Labor and the Annie E. Casey and Ford foundations, Ready4Work is a three-year national demonstration project designed to address the needs of the growing ex-prisoner population and to test the capacity of community- and faith-based organizations to meet those needs. Ready4Work programs are providing employment services, case management and mentoring in 11 adult sites around the country (data from seven juvenile sites are being analyzed separately). Interim outcomes from the initiative are extremely encouraging, with almost 60 percent of participants becoming employed and the majority of them staying employed for three or more consecutive months. Even more striking, recidivism rates for Ready4Work participants are considerably lower than those reported by the Bureau of Justice Statistics for a similar population

    Variability of developmental timings of the knee in young American children as assessed through Pyle and Hoerr's radiographic atlas

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    This study examines the accuracy of the Pyle and Hoerr radiographic atlas technique in an effort to document the extent of normal variation associated with developmental timings in the knee for purposes of age estimation. The atlas has been previously tested; however, accuracy rates were produced from a dataset, which spread in age from mostly 7–16 years. This study took a closer look at the younger age groups, examining radiographs from 297 children (147 female and 150 male) from birth to 6 years. Standard deviations representing the difference between the skeletal and chronological age were calculated according to two groupings. Each group represents episodes, or time periods, of differential developmental rates as expressed through the number of plates within the atlas dedicated to documenting each year of life. The beginning year of life is characterized by the most rapid of development as represented by the numerous image plates used to depict this time period. Individuals assigned to plates with a skeletal age between birth and 1 year were grouped collectively to document the variation associated with such rapidly changing morphology (SD = 2.5 months in female children; 2.3 months in male children). Years 1–3.8 years (female) and 1–4.5 years (male) were represented by two or three images within the atlas, and therefore, individuals assigned to plates with a skeletal age falling within this range were placed within a second grouping (SD = 5.2 months in female children; 7.0 months in male children). As expected, variation was observed to decrease as developmental processes accelerated in the younger children. The newly calculated standard deviations offer tighter predictions for estimating age in young children while at the same time maintaining an acceptable width that accounts for normal variation in developmental timings.</p

    Teaching Leadership from a Communication Perspective

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    Interest in leadership has intensified during the past decade. This heightened interest in leadership appears to be encouraging communication departments to offer leadership coursework. This article provides a model for a communication-based course in leadership. A sample syllabus, information on preferred teaching methods, and instructional resources are presented

    Magnetic field topology of the RS CVn star II Pegasi

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    The dynamo processes in cool active stars generate complex magnetic fields responsible for prominent surface stellar activity and variability at different time scales. For a small number of cool stars magnetic field topologies were reconstructed from the time series of spectropolarimetric observations using the Zeeman Doppler imaging (ZDI) method. In this study we follow a long-term evolution of the magnetic field topology of the RS CVn binary star II Peg. We collected high-resolution circular polarisation observations of II Peg using the SOFIN spectropolarimeter at the Nordic Optical Telescope. These data cover 12 epochs spread over 7 years. A multi-line diagnostic technique in combination with a new ZDI code is applied to interpret these observations. Magnetic inversions using these data reveals evolving magnetic fields with typical local strengths of 0.5-1.0 kG and complex topologies. Despite using a self-consistent magnetic and temperature mapping technique, we do not find a clear correlation between magnetic and temperature features in the ZDI maps. Neither do we confirm the presence of persistent azimuthal field rings found in other RS CVn stars. Reconstruction of the magnetic field topology of II Peg reveals significant evolution of both the surface magnetic field structure and the extended magnetospheric field geometry. From 2004 to 2010 the total field energy drastically declined and the field became less axisymmetric. This also coincided with the transition from predominantly poloidal to mainly toroidal field topology. A qualitative comparison of the ZDI maps of II Peg with the prediction of dynamo theory suggests that the magnetic field in this star is produced mainly by the turbulent alpha^2 dynamo rather than the solar alphaOmega dynamo. Our results do not show a clear active longitude system, nor is there an evidence of the presence of an azimuthal dynamo wave.Comment: 20 pages, 10 figures; accepted for publication in Astronomy & Astrophysic

    Targeting Glycolysis with Epigallocatechin-3-Gallate Enhances the Efficacy of Chemotherapeutics in Pancreatic Cancer Cells and Xenografts.

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    Pancreatic cancer is a complex disease, in need of new therapeutic approaches. In this study, we explored the effect and mechanism of action of epigallocatechin-3-gallate (EGCG), a major polyphenol in green tea, alone and in combination with current chemotherapeutics on pancreatic cancer cell growth, focusing on glycolysis metabolism. Moreover, we investigated whether EGCG's effect is dependent on its ability to induce reactive oxygen species (ROS). EGCG reduced pancreatic cancer cell growth in a concentration-dependent manner and the growth inhibition effect was further enhanced under glucose deprivation conditions. Mechanistically, EGCG induced ROS levels concentration-dependently. EGCG affected glycolysis by suppressing the extracellular acidification rate through the reduction of the activity and levels of the glycolytic enzymes phosphofructokinase and pyruvate kinase. Cotreatment with catalase abrogated EGCG's effect on phosphofructokinase and pyruvate kinase. Furthermore, EGCG sensitized gemcitabine to inhibit pancreatic cancer cell growth in vitro and in vivo. EGCG and gemcitabine, given alone, reduced pancreatic tumor xenograft growth by 40% and 52%, respectively, whereas the EGCG/gemcitabine combination reduced tumor growth by 67%. EGCG enhanced gemcitabine's effect on apoptosis, cell proliferation, cell cycle and further suppressed phosphofructokinase and pyruvate kinase levels. In conclusion, EGCG is a strong combination partner of gemcitabine reducing pancreatic cancer cell growth by suppressing glycolysis

    The Perils of Positivity

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    The passion and productivity that characterizes research on positive organizational behavior (POB) is impressive. Yet POB research is accumulating so rapidly that it may exceed what the field's conceptual, methodological, and ideological foundation can bear. I discuss here six concerns prompted by the articles in this special issue. These concerns are (1) the emphasis of positive organizational scholarship on individual-level phenomena, (12) the ahistorical character of POB research and writing, (3) the construct validity of key concepts, (4) over-reliance on a particular research strategy, (5) implicit acceptance of fundamental flaws in how work and organizations are designed, and (6) the seductiveness of new research paradigms.Psycholog

    A Study of Methods for the Determination of Potassium in Fertilizer

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    Student and Faculty Engagement and Support in a Pandemic

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    It’s been seven long months since our world was turned upside down with the onslaught of COVID-19. We all remember clearly the chaos of March 2020 transforming our in-person, on-campus instruction to remote models; frantically securing technology for students, faculty, and staff to work remotely and standing up phone and videoconference operations for all of our support and administrative services. Our campus faculty and staff worked incredibly hard to pivot teaching and learning to support students’ successful completion of the Spring 2020 semester. I think many of us thought it was a pipedream to get to Commencement and actually graduate students in Spring 2020 – but we did it! They did it. The resilient students of Spring 2020 showed up in Zoom, and GoogleMeet, and Blackboard Collaborate; they quickly learned how to navigate new course environments and they succeeded. We know it wasn’t easy for anyone to transition last Spring. We also know that the challenges of teaching and learning remotely in a pandemic disproportionately affected our students who have limited access to technology and WiFi, less support at home for participating in college, and familial and essential work responsibilities (Fain, 2002). In this brief abstract I will share what we learned at SUNY Orange from our Spring 2020 students and how that shaped our actions and response coming into the 2020-2021 academic year

    Spot activity of the RS CVn star {\sigma} Geminorum

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    We model the photometry of RS CVn star σ\sigma Geminorum to obtain new information on the changes of the surface starspot distribution, i.e., activity cycles, differential rotation and active longitudes. We use the previously published Continuous Periods Search-method (CPS) to analyse V-band differential photometry obtained between the years 1987 and 2010 with the T3 0.4 m Automated Telescope at the Fairborn Observatory. The CPS-method divides data into short subsets and then models the light curves with Fourier-models of variable orders and provides estimates of the mean magnitude, amplitude, period and light curve minima. These light curve parameters are then analysed for signs of activity cycles, differential rotation and active longitudes. We confirm the presence of two previously found stable active longitudes, synchronised with the orbital period Porb=19.60P_{\rm{orb}}=19.60d and find eight events where the active longitudes are disrupted. The epochs of the primary light curve minima rotate with a shorter period Pmin,1=19.47P_{\rm{min,1}}=19.47d than the orbital motion. If the variations in the photometric rotation period were to be caused by differential rotation, this would give a differential rotation coefficient of α≥0.103\alpha \ge 0.103. The presence of two slightly different periods of active regions may indicate a superposition of two dynamo modes, one stationary in the orbital frame and the other one propagating in the azimuthal direction. Our estimate of the differential rotation is much higher than previous results. However, simulations show that this can be caused by insufficient sampling in our data.Comment: 10 pages, 6 figures. Submitted to A&
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