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https://www.readbyqxmd.com/read/28431465/photovoltaic-properties-and-ultrafast-plasmon-relaxation-dynamics-of-diamond-like-carbon-nanocomposite-films-with-embedded-ag-nanoparticles
#1
Šarūnas Meškinis, Domantas Peckus, Andrius Vasiliauskas, Arvydas Čiegis, Rimantas Gudaitis, Tomas Tamulevičius, Iryna Yaremchuk, Sigitas Tamulevičius
Ultrafast relaxation dynamics of diamond-like carbon (DLC) films with embedded Ag nanoparticles (DLC:Ag) and photovoltaic properties of heterojunctions consisting of DLC:Ag and crystalline silicon (DLC:Ag/Si) were investigated by means of transient absorption (TAS) spectroscopy and photovoltaic measurements. The heterojunctions using both p type and n type silicon were studied. It was found that TAS spectra of DLC:Ag films were dependent on the used excitation wavelength. At wavelengths where Ag nanoparticles absorbed light most intensively, only DLC signal was registered...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28431454/da-9701-improves-colonic-transit-time-and-symptoms-in-patients-with-functional-constipation-a-prospective-study
#2
Su Young Kim, Hyun Sun Woo, Sung Han Choi, Dong Kyun Park, Kwang An Kwon, Jun-Won Chung, Yoon Jae Kim, Jung Ho Kim, Su Ji Kim, Kyoung Oh Kim
BACKGROUND AND AIM: DA-9701, a newly developed prokinetic agent formulated with Pharbitis Semen and Corydalis Tuber, has been shown to effectively treat functional dyspepsia. Recently, it has also been suspected to improve gastrointestinal motor function. The aims of this study were to assess the effect of DA-9701 on colonic transit time (CTT) and symptoms of functional constipation. METHODS: We prospectively enrolled 33 patients with functional constipation based on the Rome III criteria...
April 21, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28431451/-experience-with-the-hind-foot-relaxation-boot
#3
Hans Zwipp, Michael Borrmann, Eberhard Walter
The goal of this paper is to report our experience with hindfoot fractures using our specially developed boot, with a follow-up of 557 cases. This boot works like the well-known Allgöwer-Röck ortheses (ARO), but is a hybrid between a boot and an orthesis. It allows full weightbearing without using crutches and completely protects an acutely operated hind foot fracture, hind foot arthrodesis or a hind foot fracture which is suitable for conservative treatment. In its first generation, this boot was custom made and used in 408 cases, from March 1999 to February 2011...
April 21, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28431442/-aortic-valve-stenosis-when-to-treat-interventionally-when%C3%A2-surgically
#4
Won-Keun Kim, Christian W Hamm
The mainstay for the current treatment of severe aortic stenosis includes surgical aortic valve replacement (SAVR) and transcatheter aortic valve implantation (TAVI). In patients with high operative risk TAVI is established as first line therapy. New data on intermediate and low risk groups demonstrate at least non-inferiority of TAVI against SAVR, and in the near future a consistently rising number of transcatheter procedures may be anticipated. The purpose of this review is to outline the decision making process, hence to illustrate the diagnostic algorithm and to provide criteria for a differentiated approach against the background of recent data...
April 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28431439/-quality-of-and-attendance-at-healthy-child-clinics-in%C3%A2-germany
#5
Alexandra Weithase, Mandy Vogel, Henriette Kiep, Sarah Schwarz, Laura Meißner, Janine Herrmann, Kristin Rieger, Christiane Koch, Volker Schuster, Wieland Kiess
Background For several years the German healthy child clinics program has been a highly appreciated preventive measure and is subject to constant development. However, attendance depends on the families' sociodemographic situation. Findings are documented in a medical checkup booklet (the so-called Gelbes Heft). Currently, there is no procedure to use the data collected for epidemiological purposes nor to evaluate the pediatric prevention measures in Germany. Methods Between 2011 and 2016, we recruited 3480 study participants for our population-based cohort study LIFE Child in Leipzig...
April 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28431436/enhanced-tearing-by-electrical-stimulation-of-the-anterior-ethmoid-nerve
#6
Mark Brinton, Andrea L Kossler, Zara M Patel, James Loudin, Manfred Franke, Christopher N Ta, Daniel Palanker
Purpose: Electrical neurostimulation enhances tear secretion, and can be applied to treatment of dry eye disease. Using a chronic implant, we evaluate the effects of stimulating the anterior ethmoid nerve on the aqueous, lipid, and protein content of secreted tears. Methods: Neurostimulators were implanted beneath the nasal mucosa in 13 New Zealand white rabbits. Stimulations (2.3-2.8 mA pulses of 75-875 μs in duration repeated at 30-100 Hz for 3 minutes) were performed daily, for 3 weeks to measure changes in tear volume (Schirmer test), osmolarity (TearLab osmometer), lipid (Oil-Red-O staining), and protein (BCA assay, mass spectrometry)...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28431435/regional-extent-of-peripheral-suppression-in-amblyopia
#7
Raiju J Babu, Simon Clavagnier, William R Bobier, Benjamin Thompson, Robert F Hess
Purpose: Previously, we have mapped amblyopic eye suppression within the central 20° of the visual field and observed a gradient of suppression that is strongest in central vision and weakens with increasing eccentricity. In this study, using a large dichoptic display, we extend our novel suppression mapping approach further into the periphery (from 20°-60°) to assess whether suppression continues to decline with eccentricity or plateaus. Methods: Sixteen participants with amblyopia (10 with strabismus, 6 with anisometropia without strabismus; mean age: 37...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28431433/experimental-anterior-ischemic-optic-neuropathy-in-diabetic-mice-exhibited-severe-retinal-swelling-associated-with-vegf-elevation
#8
Ming-Hui Sun, Mohammad Ali Shariati, Yaping Joyce Liao
Purpose: Diabetes mellitus (DM) is one of the most important risk factors for nonarteritic anterior ischemic optic neuropathy (AION). In this study, we investigated for the first time the impact of experimental AION in a DM model. Methods: We induced a photochemical thrombosis model of AION after streptozotocin-induced DM and performed serial optical coherence tomography (OCT), morphometric analyses, and VEGF levels in the retina and sera. Results: Compared with non-DM animals, experimental AION in DM mice led to significantly greater retinal swelling on day 1 and worse thinning at week 3 on OCT measurements...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28431432/contrast-sensitivity-and-lateral-inhibition-are-enhanced-with-macular-carotenoid-supplementation
#9
James M Stringham, Kevin J O'Brien, Nicole T Stringham
Purpose: Once deposited in the retina, the so-called macular carotenoids lutein (L), zeaxanthin (Z), and mesozeaxanthin (MZ) have been shown to enhance visual performance. The purpose of our study was to investigate whether increasing macular pigment optical density (MPOD) could enhance lateral inhibitory processes, and thereby improve contrast sensitivity (CS). Methods: A total of 59 young (18-25 years), healthy individuals participated in this 1-year, double-masked, placebo-controlled study...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28431428/computational-and-in-vitro-experimental-investigation-of-intrathecal-drug-distribution-parametric-study-of-the-effect-of-injection-volume-cerebrospinal-fluid-pulsatility-and-drug-uptake
#10
Kevin M Tangen, Roxanne Leval, Ankit I Mehta, Andreas A Linninger
BACKGROUND: Intrathecal drug delivery is an attractive option to circumvent the blood-brain barrier for pain management through its increased efficacy of pain relief, reduction in adverse side effects, and cost-effectiveness. Unfortunately, there are limited guidelines for physicians to choose infusion or drug pump settings to administer therapeutic doses to specific regions of the spine or the brain. Although empiric trialing of intrathecal drugs is critical to determine the sustained side effects, currently there is no inexpensive in vitro method to guide the selection of spinal drug delivery parameters...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28431426/anesthesiologists-and-disaster-medicine-a-needs-assessment-for-education-and-training-and-reported-willingness-to-respond
#11
Heather K Hayanga, Daniel J Barnett, Natasha R Shallow, Michael Roberts, Carol B Thompson, Itay Bentov, Gozde Demiralp, Bradford D Winters, Deborah A Schwengel
BACKGROUND: Anesthesiologists provide comprehensive health care across the emergency department, operating room, and intensive care unit. To date, anesthesiologists' perspectives regarding disaster medicine and public health preparedness have not been described. METHODS: Anesthesiologists' thoughts and attitudes were assessed via a Web-based survey at 3 major academic institutions. Frequencies, percentages, and odds ratios (ORs) were used to assess self-reported perceptions of knowledge and skills, as well as attitudes and beliefs regarding education and training, employee development, professional obligation, safety, psychological readiness, efficacy, personal preparedness, and willingness to respond (WTR)...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28431423/blood-bupivacaine-concentrations-after-a-combined-single-shot-sciatic-block-and-a-continuous-femoral-nerve-block-in-pediatric-patients-a-prospective-observational-study
#12
Santhanam Suresh, Gildasio S De Oliveira
We evaluated blood bupivacaine concentrations in children having a single-shot sciatic and continuous femoral blocks after anterior cruciate ligament repair. Dried blood spot samples were analyzed for bupivacaine levels at 0, 5, 15, 30, 60, and 120 minutes and 4, 24, and 48 hours. The highest 99% upper confidence interval limit was 135 ng/mL at the 4-hour evaluation point. The 99% upper confidence interval was below potentially toxic levels (1500 ng/mL) across all sampling times. The risk of local anesthetic toxicity in pediatric patients receiving single-shot sciatic and continuous femoral nerve blocks is very low...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28431421/sevoflurane-posttreatment-attenuates-lung-injury-induced-by-oleic-acid-in-dogs
#13
Guizhi Du, Shurong Wang, Zhuo Li, Jin Liu
BACKGROUND: In animal models, both sevoflurane and propofol protect against acute lung injury (ALI), especially when administered prior to ALI onset. We hypothesized that when compared to propofol, sevoflurane administration after the onset of acute respiratory distress syndrome would mitigate oleic acid (OA)-induced ALI in dogs. METHODS: Dogs were randomly assigned to receive intravenous OA to induce ALI (n = 7 for each OA group) or saline as an OA control (n = 6 for each control)...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28431420/generative-retrieval-improves-learning-and-retention-of-cardiac-anatomy-using-transesophageal-echocardiography
#14
Amanda M Kleiman, Katherine T Forkin, Allison J Bechtel, Stephen R Collins, Jennie Z Ma, Edward C Nemergut, Julie L Huffmyer
BACKGROUND: Transesophageal echocardiography (TEE) is a valuable monitor for patients undergoing cardiac and noncardiac surgery as it allows for evaluation of cardiovascular compromise in the perioperative period. It is challenging for anesthesiology residents and medical students to learn to use and interpret TEE in the clinical environment. A critical component of learning to use and interpret TEE is a strong grasp of normal cardiovascular ultrasound anatomy. METHODS: Fifteen fourth-year medical students and 15 post-graduate year (PGY) 1 and 2 anesthesiology residents without prior training in cardiac anesthesia or TEE viewed normal cardiovascular anatomy TEE video clips; participants were randomized to learning cardiac anatomy in generative retrieval (GR) and standard practice (SP) groups...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28431417/the-occurrence-of-single-and-multiple-organ-dysfunction-in-pediatric-electrical-versus-other-thermal-burns
#15
Gabriel Hundeshagen, Paul Wurzer, Abigail A Forbes, Charles D Voigt, Vanessa N Collins, Janos Cambiaso-Daniel, Celeste C Finnerty, David N Herndon, Ludwik K Branski
BACKGROUND: Multiple organ failure (MOF) is a major contributor to morbidity and mortality in burned children. While various complications induced by electrical injuries have been described, the incidence and severity of single organ failure (SOF) and MOF associated with this type of injury are unknown. The study was undertaken to compare the incidence and severity of SOF and MOF as well as other complications between electrically and thermally burned children. PATIENTS AND METHODS: Between 2001 and 2016, 288 pediatric patients with electrical burns (EB; n = 96) or thermal burns (CTR; n = 192) were analyzed in this study...
May 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28431414/intratracheal-instillation-of-neutrophils-rescues-bacterial-overgrowth-initiated-by-trauma-damage-associated-molecular-patterns
#16
Kiyoshi Itagaki, Ingred Riça, Jing Zhang, Dave Gallo, Melissa DePrato, Leo E Otterbein, Carl J Hauser
BACKGROUND: Nosocomial pneumonias are common in trauma patients and so interventions to prevent and treat nosocomial pneumonia may improve outcomes. Our prior work strongly suggests that tissue injury predisposes to infections like nosocomial pneumonia because mitochondrial debris originating from injured cells contains damage-associated molecular patterns that can reduce neutrophil (PMN) migration into the airway and diminish PMN function in response to bacterial inoculation of the airway...
May 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28431413/novel-oral-anticoagulants-and-trauma-the-results-of-a-prospective-american-association-for-the-surgery-of-trauma-multi-institutional-trial
#17
Leslie Kobayashi, Galinos Barmparas, Patrick Bosarge, Carlos V Brown, Marko Bukur, Matthew M Carrick, Richard D Catalano, Jan Holly-Nicolas, Kenji Inaba, Stephen Kaminski, Amanda L Klein, Tammy Kopelman, Eric J Ley, Ericca M Martinez, Forrest O Moore, Jason Murry, Raminder Nirula, Douglas Paul, Jacob Quick, Omar Rivera, Martin Schreiber, Raul Coimbra
BACKGROUND: The number of anticoagulated trauma patients is increasing. Trauma patients on warfarin have been found to have poor outcomes, particularly after intracranial hemorrhage (ICH). However, the effect of novel oral anticoagulants (NOAs) on trauma outcomes is unknown. We hypothesized that patients on NOAs would have higher rates of ICH, ICH progression, and death compared with patients on traditional anticoagulant and antiplatelet agents. METHODS: This was a prospective observational trial across 16 trauma centers...
May 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28431410/gravity-stress-radiographs-and-the-effect-of-ankle-position-on-deltoid-ligament-integrity-and-medial-clear-space-measurements
#18
Ali Ashraf, Jacob Murphree, Eric Wait, Travis Winston, Adam Wooldridge, Matthew Meriwether, Joshua Wilson, Jerry S Grimes
INTRODUCTION: External rotation and gravity stress radiographs have been described to distinguish stable supination-external rotation-II (SER-II) ankle fractures from unstable SER-IV fractures. It has been previously shown that both external rotation and gravity stress views are equivalent in their ability to diagnose deltoid ligament injury. It has also been shown that the position of the ankle influences the external rotation stress radiograph. However, no data of ankle position exist for gravity stress radiographs...
May 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28431409/outcomes-of-hemiarthroplasty-and-total-hip-arthroplasty-for-femoral-neck-fracture-a-medicare-cohort-study
#19
Zhong Wang, Timothy Bhattacharyya
OBJECTIVES: For patients with femoral neck fractures, total hip arthroplasty (THA) demonstrates superior outcomes compared with hemiarthroplasty. However, hemiarthroplasty remains a common treatment for femoral neck fractures and the conversion rates are unknown. We compared the results of the 2 procedures using a Medicare database. METHODS: We assembled a cohort of 70,242 patients 65 to 90 years of age with an ICD9 diagnosis and matching Current Procedure Terminology code for femoral neck fracture between 2008 and 2012...
May 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28431396/skeletal-muscle-measures-and-physical-function-in-older-adults-with-cancer-sarcopenia-or-myopenia
#20
Grant R Williams, Allison M Deal, Hyman B Muss, Marc S Weinberg, Hanna K Sanoff, Kirsten A Nyrop, Mackenzi Pergolotti, Shlomit Strulov Shachar
BACKGROUND: Skeletal muscle loss, commonly known as sarcopenia, is highly prevalent in older adults and linked with adverse outcomes in cancer, yet the definition and role of sarcopenia remains uncertain. The aim of this study was to examine the association of Computerized Tomography (CT) assessed skeletal muscle measures with physical function in older adults with cancer. RESULTS: CTs for 185 patients were available. Median age 73 (IQR 68-76) and 56.5% female. After controlling for sex and BMI, we found no evidence that SMI was associated with physical function impairments...
April 5, 2017: Oncotarget
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