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https://www.readbyqxmd.com/read/29352727/re-evaluation-of-target-lipid-model-derived-hc5-predictions-for-hydrocarbons
#1
Joy A McGrath, Christopher J Fanelli, Dominic M Di Toro, Thomas F Parkerton, Aaron D Redman, Miriam Leon Paumen, Mike Comber, Charles V Eadsforth, Klaas den Haan
The Target Lipid Model (TLM) has been previously applied to predict the aquatic toxicity of hydrocarbons and other non-ionic organic chemicals and for deriving HC5 values, concentrations above which 95% of species should be protected. Several concerns were identified with the TLM-derived HC5 when applied in a substance risk assessment context. These shortcomings were addressed by expanding the acute and chronic toxicity databases to include more diverse taxonomic groups and increase the number of species. The TLM was recalibrated with these expanded databases resulting in critical target lipid body burdens and acute-to-chronic ratios that met the required guidelines for using species sensitivity distributions in substance risk assessment...
January 20, 2018: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29352678/e-bike-related-trauma-in-children-and-adults
#2
Itai Gross, Daniel J Weiss, Elior Eliasi, Miklosh Bala, Saar Hashavya
BACKGROUND: Electric bike (e-bike) usage is growing worldwide, and so is the e-bike-related injury rate. OBJECTIVE: This study was undertaken to characterize e-bike-related injuries. METHODS: Data of all e-bike-related injuries presenting to our level I trauma center between 2014 and 2016 were collected and analyzed. Adult and pediatric (<18 years of age) e-bike-related injuries were then analyzed separately and compared. RESULTS: Forty-eight patients suffering from e-bike-related injuries presented to our trauma center between January 1, 2014 and December 31, 2016...
January 15, 2018: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29352616/assessing-advanced-airway-management-performance-in-a-national-cohort-of-emergency-medical-services-agencies
#3
Henry E Wang, John P Donnelly, Dustin Barton, Jeffrey L Jarvis
STUDY OBJECTIVE: Although often the focus of quality improvement efforts, emergency medical services (EMS) advanced airway management performance has few national comparisons, nor are there many assessments with benchmarks accounting for differences in agency volume or patient mix. We seek to assess variations in advanced airway management and conventional intubation performance in a national cohort of EMS agencies. METHODS: We used EMS data from ESO Solutions, a national EMS electronic health record system...
January 15, 2018: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/29352140/ultra-high-photoresponsivity-in-suspended-metal-semiconductor-metal-mesoscopic-multilayer-mos2-broadband-detector-from-uv-to-ir-with-low-schottky-barrier-contacts
#4
Gustavo A Saenz, Goran Karapetrov, James Curtis, Anupama B Kaul
The design, fabrication, and characterization of ultra-high responsivity photodetectors based on mesoscopic multilayer MoS2 is presented, which is a less explored system compared to direct band gap monolayer MoS2 that has received increasing attention in recent years. The device architecture is comprised of a metal-semiconductor-metal (MSM) photodetector, where Mo was used as the contact metal to suspended MoS2 membranes. The photoresponsivity [Formula: see text] was measured to be ~1.4 × 104 A/W, which is > 104 times higher compared to prior reports, while the detectivity D* was computed to be ~2...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351813/integrated-biogeography-of-planktonic-and-sedimentary-bacterial-communities-in-the-yangtze-river
#5
Tang Liu, An Ni Zhang, Jiawen Wang, Shufeng Liu, Xiaotao Jiang, Chenyuan Dang, Tao Ma, Sitong Liu, Qian Chen, Shuguang Xie, Tong Zhang, Jinren Ni
BACKGROUND: Bacterial communities are essential to the biogeochemical cycle in riverine ecosystems. However, little is presently known about the integrated biogeography of planktonic and sedimentary bacterial communities in large rivers. RESULTS: This study provides the first spatiotemporal pattern of bacterial communities in the Yangtze River, the largest river in Asia with a catchment area of 1,800,000 km2. We find that sedimentary bacteria made larger contributions than planktonic bacteria to the bacterial diversity of the Yangzte River ecosystem with the sediment subgroup providing 98...
January 19, 2018: Microbiome
https://www.readbyqxmd.com/read/29351677/use-of-risk-model-for-assessment-of-residents-perception-of-complexity-of-surgical-steps-example-of-modular-component-steps-of-lumbar-spinal-fusion-surgery
#6
Jeffrey S Raskin, Jesse J Liu, Katherine Holste, Sarah Brown, Fran Hardaway, Priscilla Pang, Ahmed M Raslan
BACKGROUND: Quality improvement projects increasingly emphasize standardization of surgical work flow to optimize operative room efficiency. Removing special cause variability resulting from nonsurgical waste is an obvious target; however, resident surgical education must be maintained, even in the setting of process improvement. OBJECTIVE: To describe the impact of resident-identified "risky" or "uncomfortable" procedural steps on operative time during transforaminal lumbar interbody fusion (TLIF)...
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29351325/impact-of-educational-interventions-on-adolescent-attitudes-and-knowledge-regarding-vaccination-a-pilot-study
#7
Kate Carolan, Joanna Verran, Matthew Crossley, James Redfern, Nicola Whitton, Martyn Amos
BACKGROUND: Current immunisation levels in England currently fall slightly below the threshold recommended by the World Health Organization, and the three-year trend for vaccination uptake is downwards. Attitudes towards vaccination can affect future decisions on whether or not to vaccinate, and this can have significant public health implications. Interventions can impact future vaccination decisions, and these interventions can take several forms. Relatively little work has been reported on the use of vaccination interventions in young people, who form the next generation of individuals likely to make vaccination decisions...
2018: PloS One
https://www.readbyqxmd.com/read/29351323/fire-forbids-fifty-fifty-forest
#8
Egbert H van Nes, Arie Staal, Stijn Hantson, Milena Holmgren, Salvador Pueyo, Rafael E Bernardi, Bernardo M Flores, Chi Xu, Marten Scheffer
Recent studies have interpreted patterns of remotely sensed tree cover as evidence that forest with intermediate tree cover might be unstable in the tropics, as it will tip into either a closed forest or a more open savanna state. Here we show that across all continents the frequency of wildfires rises sharply as tree cover falls below ~40%. Using a simple empirical model, we hypothesize that the steepness of this pattern causes intermediate tree cover (30‒60%) to be unstable for a broad range of assumptions on tree growth and fire-driven mortality...
2018: PloS One
https://www.readbyqxmd.com/read/29351313/effectiveness-and-safety-of-early-medication-abortion-provided-in-pharmacies-by-auxiliary-nurse-midwives-a-non-inferiority-study-in-nepal
#9
Corinne H Rocca, Mahesh Puri, Prabhakar Shrestha, Maya Blum, Dev Maharjan, Daniel Grossman, Kiran Regmi, Philip D Darney, Cynthia C Harper
BACKGROUND: Expanding access to medication abortion through pharmacies is a promising avenue to reach women with safe and convenient care, yet no pharmacy provision interventions have been evaluated. This observational non-inferiority study investigated the effectiveness and safety of mifepristone-misoprostol medication abortion provided at pharmacies, compared to government-certified public health facilities, by trained auxiliary nurse-midwives in Nepal. METHODS: Auxiliary nurse-midwives were trained to provide medication abortion through twelve pharmacies and public facilities as part of a demonstration project in two districts...
2018: PloS One
https://www.readbyqxmd.com/read/29351198/superoxide-dismutase-mimetic-gc4419-enhances-the-oxidation-of-pharmacological-ascorbate-and-its-anticancer-effects-in-an-h%C3%A2-o%C3%A2-dependent-manner
#10
Collin D Heer, Andrew B Davis, David B Riffe, Brett A Wagner, Kelly C Falls, Bryan G Allen, Garry R Buettner, Robert A Beardsley, Dennis P Riley, Douglas R Spitz
Lung cancer, together with head and neck cancer, accounts for more than one-fourth of cancer deaths worldwide. New, non-toxic therapeutic approaches are needed. High-dose IV vitamin C (aka, pharmacological ascorbate; P-AscH-) represents a promising adjuvant to radiochemotherapy that exerts its anti-cancer effects via metal-catalyzed oxidation to form H₂O₂. Mn(III)-porphyrins possessing superoxide dismutase (SOD) mimetic activity have been shown to increase the rate of oxidation of AscH-, enhancing the anti-tumor effects of AscH- in several cancer types...
January 19, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29351127/four-months-of-wearing-a-balance-orthotic-improves-measures-of-balance-and-mobility-among-a-cohort-of-community-living-older-adults
#11
Sean Noah, Cynthia Gibson-Horn, Jennifer L Vincenzo
BACKGROUND AND PURPOSE: The Centers for Disease Control and Prevention estimated that there were 29 million falls and 7 million injuries in 2014 in the United States. Falls, decreased balance, and mobility disability are common in older adults and often result in loss of independence. Finding interventions to address these issues is important, as this age group is growing exponentially. Prior studies indicate balance and mobility can be improved by the balance-based torso-weighting (BBTW) assessment implemented through wear of a balance orthotic (BO)...
January 18, 2018: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/29351126/incidence-and-risk-factors-for-falls-in-women-with-end-stage-hip-osteoarthritis
#12
Hisashi Ikutomo, Koutatsu Nagai, Keiichi Tagomori, Namika Miura, Norikazu Nakagawa, Kensaku Masuhara
BACKGROUND AND PURPOSE: Fall-induced injuries and resulting deaths are a serious health problem among older adults. The most common risk factors for falls in older adults are muscle weakness, gait deficiencies, and balance deficits. Patients with end-stage hip osteoarthritis (OA) also have many hip dysfunctions, and these all have the potential to increase the risk of falls. However, the incidence and risk factors for falls in patients with end-stage hip OA remain unclear. The aim of this study was to determine the incidence of falls in women with end-stage hip OA and to identify risk factors for falls in this patient population...
January 18, 2018: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/29351053/patient-variability-seldom-assessed-in-cost-effectiveness-studies
#13
Tara A Lavelle, David M Kent, Christine M Lundquist, Teja Thorat, Joshua T Cohen, John B Wong, Natalia Olchanski, Peter J Neumann
BACKGROUND: Cost-effectiveness analysis (CEA) estimates can vary substantially across patient subgroups when patient characteristics influence preferences, outcome risks, treatment effectiveness, life expectancy, or associated costs. However, no systematic review has reported the frequency of subgroup analysis in CEA, what type of heterogeneity they address, and how often heterogeneity influences whether cost-effectiveness ratios exceed or fall below conventional thresholds. METHODS: We reviewed the CEA literature cataloged in the Tufts Medical Center CEA Registry, a repository describing cost-utility analyses published through 2016...
January 1, 2018: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/29350644/talar-fractures-radiological-and-ct-evaluation-and-classification-systems
#14
Giuseppe Caracchini, Michele Pietragalla, Alioscia De Renzis, Michele Galluzzo, Mattia Carbone, Marcello Zappia, Anna Russo, Federico Greco, Vittorio Miele
INTRODUCTION: The talus is the second largest bone of the foot. It is fundamental to ensure normal ankle-foot movements as it connects the leg and the foot. Talar fractures are usually due to high energy traumas (road accidents, high level falls). They are not common as they account for 3-5% of ankle and foot fractures and 0.85% of all body fractures. However, talar fractures not correctly diagnosed and treated can lead to avascular necrosis of the astragalus, pseudoarthrosis, early osteoarthrisis and ankle instability, declining the quality of life of patients...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350479/solution-processable-1d-fullerene-c60-crystals-for-visible-spectrum-photodetectors
#15
Rinku Saran, Richard J Curry
Visible spectrum photodetector devices fabricated using molecular crystals of carbon C60 are reported. The devices operate efficiently, extending over and beyond the full visible light spectrum (300-710 nm) with a bias voltage tunable responsivity of 4 mA-0.5 mA W-1 . Across this range of wavelengths, the noise equivalent power of these devices remains below 102 nW Hz-1/2 , providing a detectivity of 107 Jones. The noise current in these devices is found to have a strong dependence on both bias voltage and frequency, varying by 4 orders of magnitude from 1 nA Hz-1/2 to 0...
January 19, 2018: Small
https://www.readbyqxmd.com/read/29350453/late-cretaceous-marine-arthropods-relied-on-terrestrial-organic-matter-as-a-food-source-geochemical-evidence-from-the-coon-creek-lagerst%C3%A3-tte-in-the-mississippi-embayment
#16
M B Vrazo, A F Diefendorf, B E Crowley, A D Czaja
The Upper Cretaceous Coon Creek Lagerstätte of Tennessee, USA, is known for its extremely well-preserved mollusks and decapod crustaceans. However, the depositional environment of this unit, particularly its distance to the shoreline, has long been equivocal. To better constrain the coastal proximity of the Coon Creek Formation, we carried out a multiproxy geochemical analysis of fossil decapod (crab, mud shrimp) cuticle and associated sediment from the type section. Elemental analysis and Raman spectroscopy confirmed the presence of kerogenized carbon in the crabs and mud shrimp; carbon isotope (δ13 C) analysis of bulk decapod cuticle yielded similar mean δ13 C values for both taxa (-25...
January 19, 2018: Geobiology
https://www.readbyqxmd.com/read/29350373/pediatric-dural-venous-sinus-thrombosis-following-closed-head-injury-an-easily-overlooked-diagnosis-with-devastating-consequences
#17
Joe M Das, Rashmi Sapkota, Binjura Shrestha
Dural venous sinus thrombosis (DVST) is an uncommon finding after traumatic brain injury. The diagnosis can often be initially missed, particularly if not associated with an overlying fracture. Pediatric DVST following closed head injury and without an overlying fracture is very rare, with only 20 cases reported in the literature to date. Here we present the case of a 19-month-old boy who presented with a history of trivial fall and an episode of fever. On presentation, the pediatric Glasgow Coma Scale (pGCS) score was E3V4M6, and initial brain computed tomography (CT) was normal...
January 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29350368/clinical-features-diagnosis-and-treatment-of-traumatic-pulmonary-pseudocysts
#18
Seray Hazer, Umut Perçem Orhan Söylemez
BACKGROUND: Traumatic pulmonary pseudocysts (TPP) are rare complications of blunt chest trauma. The aim of this study is to increase the understanding of this rare entity with imaging and clinical parameters for preventing complications and determining the correct treatment approach by observing 15 cases. METHODS: We retrospectively reviewed the medical data and thoracic computed tomography scans of 185 patients who underwent examinations in our department after chest trauma between July 2014 and December 2015...
January 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29350366/health-results-of-a-coup-attempt-evaluation-of-all-patients-admitted-to-hospitals-in-istanbul-due-to-injuries-sustained-during-the-july-15-2016-coup-attempt
#19
İsmail Tayfur, Mustafa Ahmet Afacan, Mehmet Özgür Erdoğan, Şahin Çolak, Özgür Söğüt, Burcu Genç Yavuz, Korkut Bozan
BACKGROUND: A coup attempt against the government took place in Turkey on July 15, 2016. This attempt caused serious injuries and deaths in the country. In this study, the data of patients referred to all hospitals in Istanbul during the attempt were evaluated, and differences between natural disasters, other terrorist actions, and coup attempts were analyzed. METHODS: In total, 1104 patients were injured in the abovementioned coup attempt. In this study, the demographic and health information of 882 coup victims who were admitted to all hospitals (state and private) in Istanbul on July 15 and 16, 2016 and registered at the Crisis Center of Istanbul Provincial Health Directorate was analyzed...
January 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29350312/genesurance-counseling-patient-perspectives
#20
Chelsea Wagner, Lauren Murphy, Jacqueline Harkenrider, Sandra Darilek, Eleazar Soto-Torres, Quinn Stein, Jennifer Hoskovec
Genetic counselors (GCs) have reported an increase in discussion of insurance-related, or "genesurance," topics during genetic counseling sessions. Despite increasing frequency, there have been no studies examining patient expectations of GCs in these discussions. This study aimed to explore patient expectations of GCs in these discussions, as well as examine factors that may impact expectations. A 38-item survey was administered prior to patients receiving prenatal or cancer genetic counseling at 11 clinic sites across UTHealth, Baylor College of Medicine, and Sanford Health, with 360 responses analyzed...
January 19, 2018: Journal of Genetic Counseling
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