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Megan Litz, Andrea Rigby, Ann M Rogers, Douglas L Leslie, Christopher S Hollenbeak
BACKGROUND: Mental health disorders are common among bariatric surgery patients. Mental health disorders, particularly depression, have been associated with poorer surgical outcomes, indicating the bariatric surgery patient population warrants special clinical attention. OBJECTIVE: Our study sought to examine the effect of diagnosed mental health disorders on 30-day readmission for those undergoing bariatric surgery in hospitals across Pennsylvania from 2011 to 2014...
December 8, 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
Bernd Uder, Haibin Gao, Peter Kunnas, Niels de Jonge, Uwe Hartmann
Two-dimensional atomically flat sheets with a high mechanical flexibility are very attractive as ultrathin membranes but are also inherently challenging for microscopic investigations. We report on a method using Scanning Tunneling Microscopy (STM) under ultra-high vacuum conditions for non-indenting low-force spectroscopy on micrometer-sized freestanding graphene membranes. The method is based on applying quasi-static voltage ramps with active feedback at low tunneling currents and ultimately relies on the attractive electrostatic force between the tip and the membrane...
January 12, 2018: Nanoscale
Pamela D Reiter, Jennifer Roth, Beth Wathen, Jaime LaVelle, Leslie A Ridall
OBJECTIVES: To describe the use of low-dose bolus epinephrine in critically ill children during an acute hypotensive episode or prearrest condition. DESIGN: Institutional Review Board approved, single-center, retrospective medical chart review. SETTING: Large medical-surgical PICU within a freestanding, tertiary care children's hospital. PATIENTS: Patients admitted to the PICU between June 1, 2015, and June 1, 2016, who received low-dose (≤ 5 µg/kg) IV bolus epinephrine...
January 9, 2018: Pediatric Critical Care Medicine
Sylvain Rat, Mario Piedrahita-Bello, Lionel Salmon, Gábor Molnár, Philippe Demont, Azzedine Bousseksou
Spin crossover particles of formula [Fe{(Htrz)2 (trz)}0.9 (NH2 -trz)0.3 ](BF4 )1.1 and average size of 20 nm ± 8 nm are homogeneously dispersed in poly(vinylidene fluoride-co-trifluoro-ethylene), P(VDF-TrFE), and poly(vinylidene fluoride) (PVDF) matrices to form macroscopic (cm-scale), freestanding, and flexible nanocomposite materials. The composites exhibit concomitant thermal expansion and discharge current peaks on cycling around the spin transition temperatures, i.e., new "product properties" resulting from the synergy between the particles and the matrix...
January 8, 2018: Advanced Materials
Adam C Adler, Stephanie Helman, Cynthia Field, Judith J Stellar, Lauren A Brown, Nicole Omensetter, Andrew T Costarino, Mahsun Yuerek, Karen S Bender
OBJECTIVES: To reduce the number of ischemic arterial catheter injuries in children with congenital or acquired heart disease. DESIGN: This is a quality improvement study with pre- and postintervention groups. SETTING: University-affiliated pediatric cardiac center in a quaternary care freestanding children's hospital. PATIENTS: All patients with an indwelling peripheral arterial catheter placed in the Children's Hospital of Philadelphia Cardiac Center associated with an admission to the Cardiac Intensive Cardiac Unit from January 2015 to July 2017 are included...
January 8, 2018: Pediatric Critical Care Medicine
Subinuer Yilixiati, Rabees Rafiq, Yiran Zhang, Vivek Sharma
Freestanding films of soft matter containing micelles, nanoparticles, polyelectrolyte-surfactant complexes, bilayers and smectic liquid crystals exhibit stratification. Stepwise thinning and coexisting thick-thin regions associated with drainage via stratification are attributed to the confinement-induced structuring and layering of supramolecular structures, that contribute supramolecular oscillatory structural forces. In freestanding micellar films, formed by a solution of an ionic surfactant above its critical micelle concentration, both interfacial adsorption and the micelle size and shape, are determined by the concentration of surfactant and of added electrolytes...
January 9, 2018: ACS Nano
Nancy F Berglas, Molly F Battistelli, Wanda K Nicholson, Mindy Sobota, Richard D Urman, Sarah C M Roberts
BACKGROUND: Over recent decades, numerous medical procedures have migrated out of hospitals and into freestanding ambulatory surgery centers (ASCs) and physician offices, with possible implications for patient outcomes. In response, states have passed regulations for office-based surgeries, private organizations have established standards for facility accreditation, and professional associations have developed clinical guidelines. While abortions have been performed in office setting for decades, states have also enacted laws requiring that facilities that perform abortions meet specific requirements...
2018: PloS One
Andrea L Benin, Gina Lockwood, Tracy Creatore, Donna Donovan, Maggi Predmore, Susan MacArthur
The objective was to describe qualitatively the attitudes among employees toward mandatory vaccination against influenza to ultimately improve such programs and prevent hospital-acquired influenza. Qualitative interviews were conducted with 21 employees at a freestanding children's hospital. Analysis of interview transcripts used grounded theory and the constant comparative method; codes were iteratively revised and refined as themes emerged. Themes emerged elucidating promoters and concerns. Promoters included a desire to protect self, family, and patients; perception of vaccination as part of professional responsibility; and free vaccination as a benefit from the organization...
December 1, 2017: American Journal of Medical Quality: the Official Journal of the American College of Medical Quality
Chunfeng Cheng, Chunmei Zhang, Xiaohui Gao, Zhihua Zhuang, Cheng Du, Wei Chen
In this study, two-dimensional (2D) and three-dimensional (3D) freestanding reduced graphene oxide-supported Cu2O composites (Cu2O-rGO) were synthesized via simple and cost-efficient hydrothermal and filtration strategies. The structural characterizations clearly showed that highly porous 3D graphene aerogel supported Cu2O microcrystals (3D Cu2O-GA) have been successfully synthesized and the Cu2O microcrystals are uniformly assembled in the 3D GA. Meanwhile, paper-like 2D reduced graphene oxide-supported Cu2O nanocrystals (2D Cu2O-rGO) have also been prepared by a filtration process...
December 29, 2017: Analytical Chemistry
Beibei Yuan, Xizhen Sun, Linchao Zeng, Yan Yu, Qingsong Wang
Selenium cathode has attracted more and more attention because of its comparable volumetric capacity but much higher electrical conductivity than sulfur cathode. Compared to Li-Se batteries, Na-Se batteries show many advantages, including the low cost of sodium resources and high volumetric capacity. However, Na-Se batteries still suffer from the shuttle effect of polyselenides and high volumetric expansion, resulting in the poor electrochemical performance. Herein, Se is impregnated into microporous multichannel carbon nanofibers (Se@MCNFs) thin film with high flexibility as a binder-free cathode material for Na-Se batteries...
December 27, 2017: Small
Sascha Koch, Christopher D Kaiser, Paul Penner, Michael Barclay, Lena Frommeyer, Daniel Emmrich, Patrick Stohmann, Tarek Abu-Husein, Andreas Terfort, D Howard Fairbrother, Oddur Ingólfsson, Armin Gölzhäuser
The determination of the negative ion yield of 2'-chloro-1,1'-biphenyl (2-Cl-BP), 2'-bromo-1,1'-biphenyl (2-Br-BP) and 2'-iodo-1,1'-biphenyl (2-I-BP) upon dissociative electron attachment (DEA) at an electron energy of 0 eV revealed cross section values that were more than ten times higher for iodide loss from 2-I-BP than for the other halogenides from the respective biphenyls (BPs). Comparison with dissociative ionization mass spectra shows that the ratio of the efficiency of electron impact ionization induced fragmentation of 2-I-BP, 2-Br-BP, and 2-Cl-BP amounts to approximately 1:0...
2017: Beilstein Journal of Nanotechnology
Yu Dian Lim, Dmitry Grapov, Liangxing Hu, Qinyu Kong, Beng Kang Tay, Vladimir A Labunov, Jianmin Miao, Coquet Philippe, Sheel Aditya
It has been widely reported that Carbon Nanotubes (CNTs) exhibit superior field emission (FE) properties due to its high aspect ratio and unique structural properties. Among the various types of CNTs, random growth CNTs exhibit promising FE properties due to its reduced inter-tube screening effect. However, growing random growth CNTs on individual catalyst islands often results in spread out CNT bundles, which reduces its overall field enhancement. In this study, significant FE properties improvement in CNT bundles is demonstrated by confining them in microfabricated SiO2 pits...
December 14, 2017: Nanotechnology
Caroline Steward
As the number of patients requiring hemodialysis increases, so does the number of patients who require complex care and whose care requires a hospital hemodialysis unit setting rather than a freestanding unit. As a result, hospital units may have a higher ratio of complex patients, and some quality incentive program (QIP) measures may need modification to be meaningful in these settings.
January 2017: Nephrology Nursing Journal: Journal of the American Nephrology Nurses' Association
Zhengyun Wang, Shuang Dong, Mengxi Gui, Muhammad Asif, Wei Wang, Feng Wang, Hongfang Liu
Flexible sweat biosensors are of considerable current interest for the development of wearable smart miniature devices. In this work, we report a novel type of flexible and electrochemical sweat platform fabricated by depositing Cu submicron buds on freestanding graphene paper (GP) carrying MoS2 nanocrystals monolayer for bio-functional detection of glucose and lactate. Quantitative analysis of glucose and lactate was carried out by using amperometric i-t method. Linear ranges were obtained between 5 and 1775 μM for glucose and 0...
December 9, 2017: Analytical Biochemistry
Jan W Kuhlmann, Meike Junius, Ulf Diederichsen, Claudia Steinem
No abstract text is available yet for this article.
December 5, 2017: Biophysical Journal
Jurriaan J J Gillissen, Seyed R Tabaei, Joshua Alexander Jackman, Nam-Joon Cho
Enclosed lipid bilayer structures, referred to as liposomes or lipid vesicles, have a wide range of biological functions, such as cellular signaling and membrane trafficking. The efficiency of cellular uptake of liposomes, a key step in many of these functions, is strongly dependent on the contact area between a liposome and a cell membrane, which is governed by the adhesion force, the membrane bending energy and the osmotic pressure. Herein, we investigate the relationship between these forces and the physicochemical properties of the solvent, namely the presence of glucose (a nonionic osmolyte)...
December 4, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
Namrata Raut, Vittal R Nagar, Sara Salles, Joe E Springer, Lumy Sawaki
OBJECTIVE: To compare functional outcomes of acute inpatient rehabilitation for spinal epidural abscess (SEA) patients with and without history of intravenous substance abuse (IVSA). DESIGN: Retrospective case series study in freestanding rehabilitation hospital. METHODS: Charts of 28 SEA patients admitted from 01/2012 to 9/2015: 13 with IVSA and 15 without IVSA were reviewed. Both groups received standard-of-care rehabilitation. Statistical analyses of Functional Independence Measure (FIM) scores were conducted using individual 2 (substance use) X 2 (rehabilitation status) repeated measures analysis of variance (ANOVA)...
November 20, 2017: American Journal of Physical Medicine & Rehabilitation
M Bartosik, C Rumeau, R Hahn, Z L Zhang, P H Mayrhofer
Hard coatings used to protect engineering components from external loads and harsh environments should ideally be strong and tough. Here we study the fracture toughness, K IC, of Ti1-xAlxN upon annealing by employing micro-fracture experiments on freestanding films. We found that K IC increases by about 11% when annealing the samples at 900 °C, because the decomposition of the supersaturated matrix leads to the formation of nanometer-sized domains, precipitation of hexagonal-structured B4 AlN (with their significantly larger specific volume), formation of stacking faults, and nano-twins...
November 28, 2017: Scientific Reports
Lingbiao Meng, Shuang Ni, Minjie Zhou, Yingjuan Zhang, Zhaoguo Li, Weidong Wu
Designing new two-dimensional (2D) materials with novel band topologies has continuously attracted intense interest in fundamental science and potential applications. Here, we report a unique 2D Mg2C monolayer featuring quasi-planar hexa-coordinate magnesium and hexa-coordinate carbon, which can be tuned from a metal to a semiconductor. The system has been studied using density functional theory, including electronic structure calculations and molecular dynamics simulations. In the freestanding state, the Mg2C monolayer behaves as a weak metal; however, by increasing the biaxial tensile strains, it can gradually be modulated to a gapless semimetal and then to a semiconductor...
November 28, 2017: Physical Chemistry Chemical Physics: PCCP
Erin L Simon, Cedric Dark, Mitch Kovacs, Sunita Shakya, Craig A Meek
BACKGROUND: Recently, freestanding emergency departments (FSEDs) have grown significantly in number. Critics have expressed concern that FSEDs may increase healthcare costs. OBJECTIVE: We determined whether admission rates for identical diagnoses varied among the same group of physicians according to clinical setting. METHODS: This was a retrospective comparison of adult admission rates (n=3230) for chest pain, chronic obstructive pulmonary disease (COPD), asthma, and congestive heart failure (CHF) between a hospital-based ED (HBED) and two FSEDs throughout 2015...
October 29, 2017: American Journal of Emergency Medicine
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