Cryogenic Optical Performance of a Lightweighted Mirror Assembly for Future Space Astronomical Telescopes: Correlating Optical Test Results and Thermal Optical Model

A 43cm diameter stacked core mirror demonstrator was interferometrically tested at room temperature down to 250 degrees Kelvin for thermal deformation. The 2.5m radius of curvature spherical mirror assembly was constructed by low temperature fusing three abrasive waterjet core sections between two CNC pocket milled face sheets. The 93% lightweighted Corning ULE mirror assembly represents the current state of the art for future UV, optical, near IR space telescopes. During the multiple thermal test cycles, test results of interferometric test, thermal IR images of the front face were recorded in order to validate thermal optical model

Cryogenic Optical Performance of a Light-weight Mirror Assembly for Future Space Astronomical Telescopes: Optical Test Results and Thermal Optical Model

A 40 cm diameter mirror assembly was interferometrically tested at room temperature down to 250 degrees Kelvin for thermal deformation. The 2.5 m radius of curvature spherical mirror assembly was constructed by low temperature fusing three abrasive waterjet core sections between two face sheets. The 93% lightweighted Corning ULE mirror assembly represents the current state of the art for future UV, optical, near IR space telescopes. During the multiple thermal test cycles, test results of interferometric test, thermal IR images of the front face were recorded in order to validate thermal optical model

In-Hospital Cerebrovascular Outcomes of Patients With Atrial Fibrillation and Cancer (from the National Inpatient Sample Database)

Limited data are available regarding the impact of cancer on cerebrovascular accidents in patients with atrial fibrillation (AF). We queried the Nationwide Inpatient Survey Database to identify patients who have diagnostic code for AF. We performed a 1:1 propensity matching based on the CHADSVASc score and other risk factors between patients with AF who had lung, breast, colon, and esophageal cancer, and those who did not (control). The final cohort included a total of 31,604 patients. The primary outcome of in-hospital cerebrovascular accidents (CVA) was lower in the cancer group than in the control group (4% vs 7%, p \u3c 0.001), but with only a weak association (ф = -0.067). In-hospital mortality was higher in the cancer group than in the control group (18% vs 11%, p \u3c 0.001; ф = -0.099). A subgroup analysis according to cancer type showed similar results with a weak association with lower CVA in breast cancer (4% vs 7%; ф = -0.066, p \u3c 0.001), lung cancer (4% vs 6%; ф = -0.062, p \u3c 0.001), colon cancer (4% vs 6%; ф = -0.062, p \u3c 0.001), and esophageal cancer (3% vs 7%; ф = -0.095, p \u3c 0.001) compared with the control groups. A weak association with higher in-hospital mortality was demonstrated in lung cancer (20% vs 11%; ф = -0.127, p \u3c 0.001), colon cancer (16% vs 11%; ф = -0.076, p \u3c 0.001), and esophageal cancer (20% vs 12%; ф = -0.111, p \u3c 0.001) compared with the control groups, but no significant difference between breast cancer and control groups in mortality (11% vs 11%; ф = -0.002, p = 0.888). In conclusion, in patients with AF, cancer diagnosis may not add a predictive role for in-hospital CVA beyond the CHADS2VASc score

Pilot Randomized Controlled Trial to Reduce Readmission for Heart Failure Using Novel Tablet and Nurse Practitioner Education

BACKGROUND: Heart failure education programs are not standardized. The best form of education is unclear. We evaluated whether addition of a novel tablet application to nurse practitioner (NP) education was superior to NP education alone in reducing 30-day readmission after heart failure hospitalization. METHODS: From February 2015-March 2016. patients admitted to a quaternary academic center with primary diagnosis of heart failure were randomized to 1) treatment - NP education plus tablet application (interactive conditional logic program that flags patient questions to medical staff), or 2) control - NP education. The primary outcome was reduction in 30-day readmission rate. Secondary outcomes included satisfaction and education assessed via survey. RESULTS: Randomization included 60 patients to treatment and 66 to control. A total of 13 patients withdrew prior to intervention (treatment n = 4, control n = 1) or were lost to follow-up (treatment n = 3, control n = 5). The 30-day readmission rate trended lower for treatment compared with control, but results were not statistically significant (13.2% [7/53]. 26.7% [16/60]. respectively, P = .08). Similarly, satisfaction trended higher with treatment than control (P = .08). Treatment patients rated explanations from their physicians higher than control (Always: 83.7%. 55.8%, respectively, P = .01). CONCLUSIONS: NP education plus tablet use was not associated with significantly lower 30-day readmission rates in comparison with NP alone, but a positive trend was seen. Patient satisfaction trended higher and heart failure explanations were better with NP education plus tablet. A larger study is needed to determine if NP education plus tablet reduces readmission rates following heart failure admission. (C) 2018 Elsevier Inc. All rights reserved.Ohio State University Department of Medicine seed grant award; National Institutes of Health (NIH) [L60 MD010857]; University of Colorado, Department of Medicine, Health Services Research Development Grant Award; University of Arizona Health Sciences, Strategic Priorities Faculty Initiative Grant12 month embargo; published online: 16 March 2018This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]