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https://www.readbyqxmd.com/read/29792713/gan-nanowire-arrays-for-efficient-optical-read-out-and-optoelectronic-control-of-nv-centers-in-diamond
#1
Martin Hetzl, Jakob Wierzbowski, Theresa Hoffmann, Max Kraut, Verena Zuerbig, Christoph E Nebel, Kai Müller, Jonathan J Finley, Martin Stutzmann
Solid state quantum emitters embedded in a semiconductor crystal environment are potentially scalable platforms for quantum optical networks operated at room temperature. Prominent representatives are nitrogen-vacancy (NV) centers in diamond showing coherent entanglement and interference with each other. However, these emitters suffer from inefficient optical outcoupling from the diamond and from fluctuations of their charge state. Here, we demonstrate the implementation of regular n-type gallium nitride nanowire arrays on diamond as photonic waveguides to tailor the emission direction of surface-near NV centers and to electrically control their charge state in a p-i-n nano-diode...
May 24, 2018: Nano Letters
https://www.readbyqxmd.com/read/29792341/our-experience-with-using-a-uniform-prophylactic-protocol-in-neurosurgery-surgical-site-infection-did-not-occur-in-272-operations
#2
Arash Fattahi, Amin Jahanbakhshi, Morteza Taheri, Akbar Mehrizi, Mehdi Chavoshinejad
PURPOSE: Surgical site infection (SSI) is a source of concern in any surgical procedure. Although studies with high numbers of patients are available, most of these studies were performed by different surgeons and the exact anti-SSI protocol is not mentioned or is not homogeneous in all patients. MATERIALS AND METHODS: We present the results of 272 cases where SSI was successfully prevented in our neurosurgical units and in this study we explain our institutional protocol for achieving this positive result...
May 24, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29790447/data-driven-process-to-improve-va-surgical-flow
#3
Balmatee Bidassie, William Gunnar, Leigh Starr, George Van Buskirk, Lisa Warner, Clifford Anckaitis, Angela Howard
Purpose During years 2014-2016, Veterans Health Administration National Surgery Office conducted a surgical flow improvement initiative (SFII) to assist low-performing surgery programs to improve their operating room efficiency (ORE). The initiative was co-sponsored by VHA National Surgery Office and VHA Office of Systems Redesign and Improvement. The paper aims to discuss this issue. Design/methodology/approach An SFII algorithm, based on first-time-start (FTS), cancellation rate (CR), lag time (LT) and OR utilization, assigned an ORE performance Level (1-low to 4-high) to each VA Medical Center (VAMC)...
May 14, 2018: International Journal of Health Care Quality Assurance
https://www.readbyqxmd.com/read/29790445/a-study-of-deficiencies-in-teamwork-skills-among-jordan-caregivers
#4
Omar Al-Araidah, Nader Al Theeb, Mariam Bader, Nabeel Mandahawi
Purpose The purpose of this paper is to present the deficiencies in teamwork skills at Jordan hospitals as seen by team members. The study aims to identify training needs to improve teamwork-related soft skills of caregivers to enhance staff satisfaction and improve quality of care. Moreover, the paper provides a methodology to identify the training needs in any healthcare workplace by repeating the same questionnaire. Design/methodology/approach A self-administrated questionnaire was designed to study deficiencies in teamwork and team leadership at Jordan hospitals as seen by team members...
May 14, 2018: International Journal of Health Care Quality Assurance
https://www.readbyqxmd.com/read/29790366/do-illuminated-foot-pedals-improve-the-speed-and-accuracy-of-pedal-activation-during-endoscopic-procedures
#5
Brian C Shin, Christopher K Heinrich, Julie W Cheng, Mohamed Keheila, Jim Ken-Chie Shen, Patrick W Yang, Salim Cheriyan, Samuel R Abourbih, Nazih Khater, D Duane Baldwin
PURPOSE: Endourologic procedures like percutaneous nephrolithotomy (PCNL) employ the use of foot pedals in low-light operating room (OR) settings. These pedals can be especially difficult to locate or distinguish when several pedals are present during a single operation. Improper instrument activation in the OR has led to serious complications ranging from unintentional electrocautery to patient burns and even an intraoperative explosion. This study evaluates the impact of color-coded illumination on speed and efficiency of foot pedal activation...
May 23, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29790042/orthopaedic-regenerative-tissue-engineering-en-route-to-the-holy-grail-disequilibrium-between-the-demand-and-the-supply-in-the-operating-room
#6
REVIEW
Ibrahim Fatih Cengiz, Hélder Pereira, Laura de Girolamo, Magali Cucchiarini, João Espregueira-Mendes, Rui L Reis, Joaquim Miguel Oliveira
Orthopaedic disorders are very frequent, globally found and often partially unresolved despite the substantial advances in science and medicine. Their surgical intervention is multifarious and the most favourable treatment is chosen by the orthopaedic surgeon on a case-by-case basis depending on a number of factors related with the patient and the lesion. Numerous regenerative tissue engineering strategies have been developed and studied extensively in laboratory through in vitro experiments and preclinical in vivo trials with various established animal models, while a small proportion of them reached the operating room...
May 22, 2018: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/29789856/impact-of-a-laser-service-line-for-burn-scar-on-a-dedicated-burn-or-s-flow-and-productivity
#7
Tarik D Madni, John E Hoopman, Xingchen Li, Jonathan B Imran, Audra T Clark, Holly B Cunningham, Steven E Wolf, Jeffrey M Kenkel, Herb A Phelan
Our group began performing erbium-YAG 2940 wavelength fractional resurfacing of burn scar in our burn center's dedicated burn operating room (OR) in January 2016. The impact of these procedures on the performance of a mature, dedicated burn OR is unknown. All burn OR cases performed between January 1, 2015 and December 31, 2015 served as a pre-laser (PRE-LSR) historical control. A postintervention cohort of laser-only cases (LSR) performed between January 1, 2016 and August 17, 2016 was then identified. PRE-LSR and LSR cases were retrospectively reviewed for OR component times, and work relative value units (wRVU) billed...
December 8, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/29789217/outcomes-and-cost-of-open-versus-endovascular-repair-of-intact-thoracoabdominal-aortic-aneurysm
#8
Satinderjit Locham, Hanaa Dakour-Aridi, Besma Nejim, Jasninder Dhaliwal, Widian Alshwaily, Mahmoud Malas
OBJECTIVE: Many previous studies have evaluated the outcomes of open and endovascular repair of thoracoabdominal aortic aneurysms (TAAAs). However, little is known about the differences in cost of these procedures and the potential factors driving these differences. The aim of this study was to evaluate the outcomes and cost of open aortic repair (OAR) vs endovascular repair of intact TAAA. METHODS: All patients undergoing repair for intact TAAA were identified in the Premier Healthcare Database (July 2009-March 2015)...
May 19, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29787386/comparison-of-tracheal-intubation-conditions-in-operating-room-and-intensive-care-unit-a-prospective-observational-study
#9
Manuel Taboada, Patricia Doldan, Andrea Calvo, Xavier Almeida, Esteban Ferreiroa, Aurora Baluja, Agustin Cariñena, Paula Otero, Valentin Caruezo, Alberto Naveira, Pablo Otero, Julian Alvarez
BACKGROUND: Tracheal intubation is a common intervention in the operating room and in the intensive care unit. The authors hypothesized that tracheal intubation using direct laryngoscopy would be associated with worse intubation conditions and more complications in the intensive care unit compared with the operating room. METHODS: The authors prospectively evaluated during 33 months patients who were tracheally intubated with direct laryngoscopy in the operating room, and subsequently in the intensive care unit (within a 1-month time frame)...
May 22, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29787252/c-n-cross-coupling-via-photoexcitation-of-nickel-amine-com-plexes
#10
Chern-Hooi Lim, Max Kudisch, Bin Liu, Garret M Miyake
C-N cross-coupling is an important class of reactions with far-reaching impacts across chemistry, materials science, biology, and medicine. Transition metal complexes can elegantly orchestrate diverse aminations but typically require demanding reaction conditions, precious metal catalysts, or oxygen sensitive procedures. Here, we introduce a mild nickel-catalyzed C-N cross-coupling methodology that operates at room temperature using an inexpensive nickel source (NiBr2•3H2O), is oxy-gen tolerant, and proceeds through direct irradiation of the nickel-amine complex...
May 22, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29786921/room-temperature-ferroelectricity-in-an-organic-cocrystal
#11
Adam J Matzger, Ren A Wiscons, Nagula Rajesh Goud, Joshua T Damron
Ferroelectric materials exhibit switchable remanent polarization due to reversible symmetry breaking under an applied electric field. Previous research has leveraged temperature-induced neutral-ionic transitions in charge-transfer (CT) cocrystals to access ferroelectrics that operate through displacement of molecules under an applied field. However, displacive ferroelectric behavior is rare in organic CT cocrystals and achieving a Curie temperature (TC) above ambient has been elusive. Here a cocrystal between acenaphthene and 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane is presented that shows switchable remanent polarization at room temperature (TC = 68°C)...
May 22, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29785458/high-resolution-standardization-reduces-delay-due-to-workflow-disruptions-in-laparoscopic-cholecystectomy
#12
Marco von Strauss Und Torney, Sohelia Aghlmandi, Jasmin Zeindler, Debora Nowakowski, Christian A Nebiker, Christoph Kettelhack, Rachel Rosenthal, Raoul A Droeser, Savas D Soysal, Henry Hoffmann, Robert Mechera
BACKGROUND: Optimal resource utilization in high-cost environments like operating theatres is fundamental in today's cost constrained health care systems. Interruptions of the surgical workflow, i.e. microcomplications (MC), lead to prolonged procedure times and higher costs and can be indicative of surgical mistakes. Reducing MC can improve operating room efficiency and prevent intraoperative complications. We, therefore, aimed to evaluate the impact of a high-resolution standardized laparoscopic cholecystectomy protocol (HRSL) on operative time and intraoperative interruptions in a teaching hospital...
May 21, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29785158/obtaining-adequate-surgical-margin-status-in-breast-conservation-therapy-intraoperative-ultrasound-guided-resection-versus-specimen-mammography
#13
Maria Mihaela Pop, Silviu Cristian, Orsolya Hanko-Bauer, Dana Valentina Ghiga, Rares Georgescu
Background and aim: The purpose of breast-conserving surgery (BCS) for women with cancer is to perform an oncological radical procedure with disease-free margins at the final histological assessment and with the best aesthetic result possible. Intraoperative resected specimen ultrasound and intraoperative resected specimen mammography may reduce the rates of positive margins and reexcision among patients undergoing conserving therapy. Our objective is to compare the two methods with the histopathological results for a preset cut off and asses which parameters can influence the positive margin status...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29784549/cost-implications-of-varying-the-surgical-technique-surgical-setting-and-anesthesia-type-for-carpal-tunnel-release-surgery
#14
Nikolas H Kazmers, Angela P Presson, Yizhe Xu, Abby Howenstein, Andrew R Tyser
PURPOSE: Carpal tunnel release (CTR) is a common surgical procedure, representing a financial burden to the health care system. The purpose of this study was to test whether the choice of CTR technique (open carpal tunnel release [OCTR] vs endoscopic carpal tunnel release [ECTR]), surgical setting (operating room vs procedure room [PR]), and anesthetic type (local, monitored anesthesia care [MAC], Bier block, general) affected costs or payments. METHODS: Consecutive adult patients undergoing isolated unilateral CTR between July 2014, and October 2017, at a single academic medical center were identified...
May 18, 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29784343/facile-synthesis-of-ni-based-metal-organic-frameworks-wrapped-mno-2-nanowires-with-high-performance-toward-electrochemical-oxygen-evolution-reaction
#15
Yujie Han, You Yu, Lingling Zhang, Liang Huang, Junfeng Zhai, Shaojun Dong
The transition metal oxides based catalysts have drawn great attention for their application in the electrolysis of water for renewable energy generation. Although manganese oxides were rarely used as oxygen evolution reaction (OER) catalysts, they were still considered as active and efficient OER catalysts due to the earth-abundant and low toxic nature of manganese. In this work, we proposed a facile method for the synthesis of high-performance electrochemical OER catalyst by magnetically stirring the mixture of 1,3,4-thiadiazole-2,5-dithiol (DMTD), Ni2+ and MnO2 nanowires (NWs) in ethanol at room temperature, noted as Ni/DMTD/MnO2 ...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29783184/postoperative-outcomes-in-patients-with-a-do-not-resuscitate-dnr-order-undergoing-elective-procedures
#16
Ethan Y Brovman, Elisa C Walsh, Brittany N Burton, Christine E Kuo, Charlotta Lindvall, Rodney A Gabriel, Richard D Urman
STUDY OBJECTIVE: Do-not-resuscitate (DNR) status has been shown to be an independent risk factor for mortality in the post-operative period. Patients with DNR orders often undergo elective surgeries to alleviate symptoms and improve quality of life, but there are limited data on outcomes for informed decision making. DESIGN: Retrospective cohort study. SETTING: A multi-institutional setting including operating room, postoperative recovery area, inpatient wards, and the intensive care unit...
May 18, 2018: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/29782402/understanding-conflict-management-styles-in-anesthesiology-residents
#17
Terrie Vasilopoulos, Christopher R Giordano, Jack D Hagan, Brenda G Fahy
BACKGROUND: Successful conflict resolution is vital for effective teamwork and is critical for safe patient care in the operating room. Being able to appreciate the differences in training backgrounds, individual knowledge and opinions, and task interdependency necessitates skilled conflict management styles when addressing various clinical and professional scenarios. The goal of this study was to assess conflict styles in anesthesiology residents via self- and counterpart assessment during participation in simulated conflict scenarios...
May 17, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29782016/in-vivo-gene-transfer-to-the-rabbit-common-carotid-artery-endothelium
#18
Bradley K Wacker, Lianxiang Bi, David A Dichek
The goal of this method is to introduce a transgene into the endothelium of isolated segments of both rabbit common carotid arteries. The method achieves focal endothelial-selective transgenesis, thereby allowing an investigator to determine the biological roles of endothelial-expressed transgenes and to quantify the in vivo transcriptional activity of DNA sequences in large artery endothelial cells. The method uses surgical isolation of rabbit common carotid arteries and an arteriotomy to deliver a transgene-expressing viral vector into the arterial lumen...
May 6, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781859/nonoperating-room-anesthesia-for-gastrointestinal-endoscopic-procedures
#19
Otto S Lin, Wade Weigel
PURPOSE OF REVIEW: To assess the trends in nonoperating room anesthesia (NORA) for gastrointestinal endoscopy over the past few years, and to describe alternative methods of delivering propofol sedation in selected low-risk patients. RECENT FINDINGS: The use of NORA for routine gastrointestinal endoscopic procedures has been rising steadily over the past decade in the United States, considerably increasing healthcare costs. Because of this, there have been attempts to develop nonanesthesiologist-administered propofol sedation methods in low-risk patients...
May 16, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29781294/microbiota-in-a-cooling-lubrication-circuit-and-an-option-for-controlling-triethanolamine-biodegradation
#20
Thomas Klammsteiner, Heribert Insam, Maraike Probst
Cooling and lubrication agents like triethanolamine (TEA) are essential for many purposes in industry. Due to biodegradation, they need continuous replacement, and byproducts of degradation may be toxic. This study investigates an industrial (1,200 m³) cooling-lubrication circuit (CLC) that has been in operation for 20 years and is supposedly in an ecological equilibrium, thus offering a unique habitat. Next-generation (Illumina Miseq 16S rRNA amplicon) sequencing was used to profile the CLC-based microbiota and relate it to TEA and bicine dynamics at the sampling sites, influent, machine rooms, biofilms and effluent...
May 21, 2018: Biofouling
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