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https://www.readbyqxmd.com/read/28102953/air-kerma-strength-determination-of-an-hdr-192-ir-source-including-a-geometric-sensitivity-study-of-the-seven-distance-method
#1
Blake R Smith, John A Micka, Manik Aima, Larry A DeWerd, Wesley S Culberson
PURPOSE: To perform an in-air air-kerma strength (SK) calibration of the Bebig model Ir2.A85-2 192Ir high-dose rate (HDR) brachytherapy source manufactured by Mallinckrodt Medical (Westerduinweg, Germany) with the NIST-traceable seven-distance technique established by the University of Wisconsin. A comparison was made between the reference air-kerma rate (RAKR) reported on a certificate from the Physikalisch-Technische Bundesanstalt (Berlin, Germany) (PTB) primary laboratory and the SK determined at the University of Wisconsin Madison Radiation Research Center (UWMRRC)...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28095286/the-relations-between-polycyclic-aromatic-hydrocarbons-exposure-and-1-ohp-levels-as-a-biomarker-of-the-exposure
#2
Zuzana Klöslová, Marek Drímal, Karol Balog, Kvetoslava Koppová, Jarmila Dubajová
BACKGROUND: Polycyclic aromatic hydrocarbons (PAHs) are the products of incomplete combustion or pyrolysis of various organic materials. Their ubiquity in the environment leads to measurable levels of exposure. However, the exposure varies strongly between different regions in Europe. Some PAHs with four or more rings are suspected to be human carcinogens. Therefore, the occupational and/or environmental exposure to PAHs may cause a significant health risk. The aim of investigation is to evaluate current levels of PAH exposure in defined groups of workers...
December 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/28093045/exploring-urban-health-in-cape-town-south-africa-an-interdisciplinary-analysis-of-secondary-data
#3
Rebekka Mumm, Sonia Diaz-Monsalve, Eva Hänselmann, Johanna Freund, Michael Wirsching, Jan Gärtner, Richard Gminski, Katrin Vögtlin, Mirjam Körner, Lena Zirn, Ursula Wittwer-Backofen, Tolu Oni, Axel Kroeger
BACKGROUND: With modern information technology, an overwhelming amount of data is available on different aspects of societies. Our research investigated the feasibility of using secondary data sources to get an overview of determinants of health and health outcomes in different population strata of Cape Town, a large city of South Africa. METHODS: The methodological approach of secondary-data analysis was similar in the different disciplines: Biological Anthropology, Public Health, Environmental Health, Mental Health, Palliative Care, Medical Psychology and Sociology at the University of Freiburg and Public Health at the University of Cape Town...
January 17, 2017: Pathogens and Global Health
https://www.readbyqxmd.com/read/28090065/assessment-of-workplace-air-concentrations-of-formaldehyde-during-and-before-working-hours-in-medical-facilities
#4
Ichiro Higashikubo, Hiroyuki Miyauchi, Satoru Yoshida, Shinsuke Tanaka, Mitsunori Matsuoka, Heihachiro Arito, Akihiro Araki, Hidesuke Shimizu, Haruhiko Sakurai
Workplace air concentrations of formaldehyde (FA) in medical facilities where FA and FA-treated organs were stored and handled were measured before and during working hours and assessed by the official method specified by Work Environment Measurement Law. Sixty-percent of the total facilities examined were judged as inappropriately controlled work environment. The concentrations of FA before working hours by spot sampling were found to exceed 0.1 ppm in some facilities, and tended to increase with increasing volume of containers storing FA and FA-treated materials...
January 13, 2017: Industrial Health
https://www.readbyqxmd.com/read/28089061/erratum-to-a-case-review-in-flight-births-over-a-4-year-period-in-the%C3%A2-northern-territory-australia-air-medical-journal-35-5-317-320
#5
(no author information available yet)
No abstract text is available yet for this article.
January 2017: Air Medical Journal
https://www.readbyqxmd.com/read/28088795/influence-of-intracranial-air-on-electrode-position-and-clinical-outcomes-following-deep-brain-stimulation-for-parkinson-s-disease
#6
J Nicole Bentley, Zhe Guan, Karen S Cummings, Kelvin L Chou, Parag G Patil
BACKGROUND: The introduction of intracranial air during deep brain stimulation (DBS) surgery is believed to negatively impact targeting accuracy and clinical outcomes. OBJECTIVE: To quantify the relationship between intracranial air (ICA) volumes, targeting accuracy, and clinical outcomes in patients undergoing subthalamic nucleus (STN) DBS for Parkinson's disease. METHODS: ICA in 73 consecutive STN DBS cases (146 leads) was measured by high-resolution CT and correlated with proximal lead bowing, electrode displacement, targeting accuracy, and clinical outcomes at 6 and 12 months...
January 14, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28079811/routine-application-of-lung-ultrasonography-in-the-neonatal-intensive-care-unit
#7
Shui-Wen Chen, Wei Fu, Jing Liu, Yan Wang
The aim of this study was to study the features of lung ultrasonography (LUS) in lung disease and to evaluate the usefulness of LUS in the neonatal intensive care unit (NICU).All of 3405 neonates included in this study underwent an LUS examination. Diagnoses were based on medical history, clinical manifestation, laboratory examination, and signs on chest radiography (CR) and/or computed tomography (CT). A single expert physician performed all LUS examinations.There were 2658 cases (78.9%) with lung disease and 747 cases (21...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28076342/knowledge-beliefs-and-attitudes-report-on-patient-care-and-safety-in-undergraduate-students-validating-the-modified-apsq-iii-questionnaire
#8
Ezequiel García Elorrio, Dolores Macchiavello, Viviana Rodriguez, Yael Catalano, Giuliana Corna, Josefina Dahinten, Marina Ontivero
INTRODUCTION: Patient safety aims to achieve healthcare free of damage. The World Health Organization indicates that this objective is achieved through communication, analysis, and prevention of adverse events in patients. Organizational culture has been identified as one of the main factors for interventions aimed to reduce medical errors; and an essential component of safety culture is the attitude of health professionals towards medical error. Attitudes can be improved through appropriate education in biomedical careers but its inclusion in Argentina is scarce...
December 20, 2016: Medwave
https://www.readbyqxmd.com/read/28073573/surgery-for-predominant-lesion-in-nonlocalized-bronchiectasis
#9
Jie Dai, Xinsheng Zhu, Dongliang Bian, Ke Fei, Gening Jiang, Peng Zhang
OBJECTIVE: Patients with nonlocalized bronchiectasis are encountered commonly; however, there is little information regarding surgical intervention in this patient population. The aim of this study was to evaluate symptomatic response and safety of anatomic resection of the predominant lesion via the use of lobectomy for the management of nonlocalized bronchiectasis. METHODS: We reviewed the medical records of 37 consecutive patients who underwent lobectomy via thoracotomy for nonlocalized bronchiectasis between 2010 and 2013...
December 15, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28072959/-diagnosis-of-pulmonary-hemorrhage-of-the-newborn-infants-using-lung-ultrasonography
#10
J Liu, W Fu, S W Chen, Y Wang
Objective: To investigate the accuracy and reliability of lung ultrasound in diagnosis of pulmonary hemorrhage of the newborn infants. Method: From January 2014 to May 2016, 142 neonates from the Army General Hospital of the Chinese PLA were enrolled in the study. They were divided into two groups: a study group of 42 neonates, who were diagnosed with pulmonary hemorrhage according to their medical history, clinical manifestations and chest X-ray findings, and a control group of 100 neonates with no lung disease...
January 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28071878/occupational-exposure-to-beryllium-final-rule
#11
(no author information available yet)
The Occupational Safety and Health Administration (OSHA) is amending its existing standards for occupational exposure to beryllium and beryllium compounds. OSHA has determined that employees exposed to beryllium at the previous permissible exposure limits face a significant risk of material impairment to their health. The evidence in the record for this rulemaking indicates that workers exposed to beryllium are at increased risk of developing chronic beryllium disease and lung cancer. This final rule establishes new permissible exposure limits of 0...
9, 2017: Federal Register
https://www.readbyqxmd.com/read/28069503/wettability-gradient-on-the-elytra-in-the-aquatic-beetle-cybister-chinensis-and-its-role-in-angular-position-of-the-beetle-at-water-air-interface
#12
Mingxia Sun, Yuan Chen, Yongmei Zheng, Mingming Zhen, Chunying Shu, Zhendong Dai, Aiping Liang, Stanislav N Gorb
: The surface of the elytra in some species of aquatic beetles displays relatively low contact angles (CAs), even showing hydrophilic properties. In this study, we report on an observation that both sexes of Cybister chinensis beetle fresh elytral surface do not exhibit uniform CA, but rather a wettability gradient along the longitudinal axis in posterior direction. The wettability is very different between females and males due to the presence (female) or absence (male) of channels on the elytral surface...
January 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28068166/risk-factors-for-injuries-during-military-static-line-airborne-operations-a-systematic-review-and-meta-analysis
#13
Joseph Knapik, Ryan Steelman
OBJECTIVE:  To identify and analyze articles in which the authors examined risk factors for soldiers during military static-line airborne operations. DATA SOURCES:  We searched for articles in PubMed, the Defense Technical Information Center, reference lists, and other sources using the key words airborne, parachuting, parachutes, paratrooper, injuries, wounds, trauma, and musculoskeletal. STUDY SELECTION:  The search identified 17 684 potential studies...
November 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/28068163/description-and-rate-of-musculoskeletal-injuries-in-air-force-basic-military-trainees-2012-2014
#14
Nathaniel S Nye, Mary T Pawlak, Bryant J Webber, Juste N Tchandja, Michelle R Milner
CONTEXT:  Musculoskeletal injuries are common in military trainees and have significant medical and operational effects. OBJECTIVE:  To provide current musculoskeletal injury epidemiology data for US Air Force basic military trainees. DESIGN:  Descriptive epidemiologic study with cross-sectional features. SETTING:  US Air Force Basic Military Training, Joint Base San Antonio-Lackland, Texas. PATIENTS OR OTHER PARTICIPANTS:  All recruits who entered training between July 1, 2012, and June 30, 2014...
November 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/28066666/ct-guided-percutaneous-microwave-ablation-of-pulmonary-malignant-tumors
#15
Wei-Chun Ko, Yee-Fan Lee, Yi-Chang Chen, Ning Chien, Yu-Sen Huang, Yao-Hui Tseng, Jang-Ming Lee, Hsao-Hsun Hsu, Jin-Shing Chen, Yeun-Chung Chang
BACKGROUND: Microwave ablation (MWA) of lung tumors is a new approach for local tumor control. The purpose of this retrospective study was to evaluate the preliminary results of safety and efficacy of MWA with a dynamic frequency range (902-928 MHz) and power (10-32 W) for local tumor control of thoracic malignancies. METHODS: From December 1, 2013 to February 1, 2016, there were total 32 lung tumors among 15 patients (7 men, 8 women, age range 43-82 years, mean 57...
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28063068/accuracy-of-177-lu-activity-quantification-in-spect-imaging-a-phantom-study
#16
Carlos F Uribe, Pedro L Esquinas, Jesse Tanguay, Marjorie Gonzalez, Emilie Gaudin, Jean-Mathieu Beauregard, Anna Celler
BACKGROUND: The aim of the study is to assess accuracy of activity quantification of (177)Lu studies performed according to recommendations provided by the committee on Medical Internal Radiation Dose (MIRD) pamphlets 23 and 26. The performances of two scatter correction and three segmentation methods were compared. Additionally, the accuracy of tomographic and planar methods for determination of the camera normalization factor (CNF) was evaluated. Eight phantoms containing inserts of different sizes and shapes placed in air, water, and radioactive background were scanned using a Siemens SymbiaT SPECT/CT camera...
December 2017: EJNMMI Physics
https://www.readbyqxmd.com/read/28062106/medical-geology-in-the-framework-of-the-sustainable-development-goals
#17
REVIEW
Jochen Bundschuh, Jyoti Prakash Maity, Shahbaz Mushtaq, Meththika Vithanage, Saman Seneweera, Jerusa Schneider, Prosun Bhattacharya, Nasreen Islam Khan, Ihsan Hamawand, Luiz R G Guilherme, Kathryn Reardon-Smith, Faruque Parvez, Nury Morales-Simfors, Sara Ghaze, Christa Pudmenzky, Louis Kouadio, Chien-Yen Chen
Exposure to geogenic contaminants (GCs) such as metal(loid)s, radioactive metals and isotopes as well as transuraniums occurring naturally in geogenic sources (rocks, minerals) can negatively impact on environmental and human health. The GCs are released into the environment by natural biogeochemical processes within the near-surface environments and/or by anthropogenic activities such as mining and hydrocarbon exploitation as well as exploitation of geothermal resources. They can contaminate soil, water, air and biota and subsequently enter the food chain with often serious health impacts which are mostly underestimated and poorly recognized...
January 3, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28061924/asymptomatic-wolff-parkinson-white-pattern-ecg-in-usaf-aviators
#18
Eddie D Davenport, Karen A N Rupp, Edwin Palileo, Jared Haynes
INTRODUCTION: Wolff-Parkinson-White (WPW) pattern is occasionally found in asymptomatic aviators during routine ECGs. Aeromedical concerns regarding WPW pattern include risk of dysrhythmia or sudden cardiac death (SCD), thus affecting the safety of flight. The purpose of this study was to determine the prevalence and outcomes of aviators with asymptomatic WPW pattern and assess for risk factors that contribute to progression to dysrhythmia or symptoms. METHODS: The U...
January 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28061919/myasthenia-gravis-and-its-aeromedical-implications
#19
Tania Jagathesan, Michael D O'Brien
BACKGROUND: Myasthenia gravis is an autoimmune condition where antibodies form against the acetylcholine receptors at the neuromuscular junction, eventually causing damage to the motor end plate. The clinical features include muscle fatigability as well as ocular, bulbar, and limb weakness, which can have implications on the role of a pilot or air traffic controller. This retrospective study reviewed the United Kingdom Civil Aviation Authority (UK CAA) experience of myasthenia gravis...
January 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28061918/clinical-experience-and-learning-style-of-flight-nurse-and-aeromedical-evacuation-technician-students
#20
Marla J De Jong, Susan F Dukes, Karey M Dufour, Darcy L Mortimer
BACKGROUND: The clinical experience and preferred learning style of U.S. Air Force flight nurses and aeromedical evacuation technicians are unknown. METHODS: Using a cross-sectional survey design, we gathered data regarding the clinical experience, level of comfort providing clinical care, and preferred learning style of 77 active duty (AD), Air Force Reserve (AFR), and Air National Guard (ANG) nurses enrolled in the U.S. Air Force School of Aerospace Medicine Flight Nurse course, and 121 AD, AFR, and ANG medical technicians enrolled in the Aeromedical Evacuation Technician course...
January 1, 2017: Aerospace Medicine and Human Performance
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