40 research outputs found

    Linking Theoretical Models to Actual Practices: A Survey of Teachers in Gifted Education

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    A regional survey of teachers of gifted and talented (G/T) programs, grades kindergarten through nine, in a southeastern state, was carried out. The principle foci of the survey were on theoretical models identified and used by teachers, and the importance of perceived outcome goals for children who are gifted. Respondents claimed awareness of several models of intervention but varied widely in the use of these models. Implications of the disparity between awareness and use of models are discussed. Outcome goals ranked by respondents varied in order, based on three grade level groupings of the teachers, most likely indicating changing perceptions of developmental needs as children progress through grade levels

    The Habitable Exoplanet Observatory (HabEx) Mission Concept Study Final Report

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    The Habitable Exoplanet Observatory, or HabEx, has been designed to be the Great Observatory of the 2030s. For the first time in human history, technologies have matured sufficiently to enable an affordable space-based telescope mission capable of discovering and characterizing Earthlike planets orbiting nearby bright sunlike stars in order to search for signs of habitability and biosignatures. Such a mission can also be equipped with instrumentation that will enable broad and exciting general astrophysics and planetary science not possible from current or planned facilities. HabEx is a space telescope with unique imaging and multi-object spectroscopic capabilities at wavelengths ranging from ultraviolet (UV) to near-IR. These capabilities allow for a broad suite of compelling science that cuts across the entire NASA astrophysics portfolio. HabEx has three primary science goals: (1) Seek out nearby worlds and explore their habitability; (2) Map out nearby planetary systems and understand the diversity of the worlds they contain; (3) Enable new explorations of astrophysical systems from our own solar system to external galaxies by extending our reach in the UV through near-IR. This Great Observatory science will be selected through a competed GO program, and will account for about 50% of the HabEx primary mission. The preferred HabEx architecture is a 4m, monolithic, off-axis telescope that is diffraction-limited at 0.4 microns and is in an L2 orbit. HabEx employs two starlight suppression systems: a coronagraph and a starshade, each with their own dedicated instrument

    The Habitable Exoplanet Observatory (HabEx) Mission Concept Study Final Report

    Get PDF
    The Habitable Exoplanet Observatory, or HabEx, has been designed to be the Great Observatory of the 2030s. For the first time in human history, technologies have matured sufficiently to enable an affordable space-based telescope mission capable of discovering and characterizing Earthlike planets orbiting nearby bright sunlike stars in order to search for signs of habitability and biosignatures. Such a mission can also be equipped with instrumentation that will enable broad and exciting general astrophysics and planetary science not possible from current or planned facilities. HabEx is a space telescope with unique imaging and multi-object spectroscopic capabilities at wavelengths ranging from ultraviolet (UV) to near-IR. These capabilities allow for a broad suite of compelling science that cuts across the entire NASA astrophysics portfolio. HabEx has three primary science goals: (1) Seek out nearby worlds and explore their habitability; (2) Map out nearby planetary systems and understand the diversity of the worlds they contain; (3) Enable new explorations of astrophysical systems from our own solar system to external galaxies by extending our reach in the UV through near-IR. This Great Observatory science will be selected through a competed GO program, and will account for about 50% of the HabEx primary mission. The preferred HabEx architecture is a 4m, monolithic, off-axis telescope that is diffraction-limited at 0.4 microns and is in an L2 orbit. HabEx employs two starlight suppression systems: a coronagraph and a starshade, each with their own dedicated instrument.Comment: Full report: 498 pages. Executive Summary: 14 pages. More information about HabEx can be found here: https://www.jpl.nasa.gov/habex

    Omecamtiv mecarbil in chronic heart failure with reduced ejection fraction, GALACTIC‐HF: baseline characteristics and comparison with contemporary clinical trials

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    Aims: The safety and efficacy of the novel selective cardiac myosin activator, omecamtiv mecarbil, in patients with heart failure with reduced ejection fraction (HFrEF) is tested in the Global Approach to Lowering Adverse Cardiac outcomes Through Improving Contractility in Heart Failure (GALACTIC‐HF) trial. Here we describe the baseline characteristics of participants in GALACTIC‐HF and how these compare with other contemporary trials. Methods and Results: Adults with established HFrEF, New York Heart Association functional class (NYHA) ≄ II, EF ≀35%, elevated natriuretic peptides and either current hospitalization for HF or history of hospitalization/ emergency department visit for HF within a year were randomized to either placebo or omecamtiv mecarbil (pharmacokinetic‐guided dosing: 25, 37.5 or 50 mg bid). 8256 patients [male (79%), non‐white (22%), mean age 65 years] were enrolled with a mean EF 27%, ischemic etiology in 54%, NYHA II 53% and III/IV 47%, and median NT‐proBNP 1971 pg/mL. HF therapies at baseline were among the most effectively employed in contemporary HF trials. GALACTIC‐HF randomized patients representative of recent HF registries and trials with substantial numbers of patients also having characteristics understudied in previous trials including more from North America (n = 1386), enrolled as inpatients (n = 2084), systolic blood pressure < 100 mmHg (n = 1127), estimated glomerular filtration rate < 30 mL/min/1.73 m2 (n = 528), and treated with sacubitril‐valsartan at baseline (n = 1594). Conclusions: GALACTIC‐HF enrolled a well‐treated, high‐risk population from both inpatient and outpatient settings, which will provide a definitive evaluation of the efficacy and safety of this novel therapy, as well as informing its potential future implementation

    Vehicle Firearm Storage: Prevalence and Correlates in a Sample of Male Firearm Owners

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    Previous research has linked unsafe firearm storage practices and other ownership-related characteristics to key factors that facilitate the transition from suicidal thoughts to suicidal behaviors (i.e., acquired capability for suicide). This research has not investigated the extent to which firearm owners store firearms in their vehicles, a factor that increases ready access to the most lethal means of suicide

    Vehicle Firearm Storage: Prevalence and Correlates in a Sample of Male Firearm Owners

    No full text
    Previous research has linked unsafe firearm storage practices and other ownership-related characteristics to key factors that facilitate the transition from suicidal thoughts to suicidal behaviors (i.e., acquired capability for suicide). This research has not investigated the extent to which firearm owners store firearms in their vehicles, a factor that increases ready access to the most lethal means of suicide

    Fungal Endophthalmitis Associated with Compounded Products

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    Fungal endophthalmitis is a rare but serious infection. In March 2012, several cases of probable and laboratory-confirmed fungal endophthalmitis occurring after invasive ocular procedures were reported nationwide. We identified 47 cases in 9 states: 21 patients had been exposed to the intraocular dye Brilliant Blue G (BBG) during retinal surgery, and the other 26 had received an intravitreal injection containing triamcinolone acetonide. Both drugs were produced by Franck’s Compounding Lab (Ocala, FL, USA). Fusarium incarnatum-equiseti species complex mold was identified in specimens from BBG-exposed case-patients and an unopened BBG vial. Bipolaris hawaiiensis mold was identified in specimens from triamcinolone-exposed case-patients. Exposure to either product was the only factor associated with case status. Of 40 case-patients for whom data were available, 39 (98%) lost vision. These concurrent outbreaks, associated with 1 compounding pharmacy, resulted in a product recall. Ensuring safety and integrity of compounded medications is critical for preventing further outbreaks associated with compounded products. Download MP3  Length: 1:4

    Giant Frontal Osteoma: Case Report with Review of Literature

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    Diagnosis of frontal osteoma is usually by chance, but rarely these can produce exceptional ophthalmologic and neurological complications apart from cosmetic disfigurement. Etiology of frontal osteoma may be multifactorial. Surgical management should be site and size specific. A combination of open surgery and endoscopic methods would help confirm complete removal of the tumor. Here we report a fronto-ethmoidal osteoma of size 7.1 × 5.3 × 5.1 cm which is one of the largest reported in literature. Also, we have done an extensive web search and text based review of the literature on frontal osteoma in terms of its incidence, etiology, pathology, clinical presentation, complications and important developments in management. The available literature and our own experience suggest that even large osteoma arising in the fronto-ethmoid region can be completely removed surgically with minimum complications. The surgical approach can be varied according to the extent of the tumor and patient considerations. A regular follow up is necessary in asymptomatic cases being treated conservatively, in view of the potential complications
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