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https://www.readbyqxmd.com/read/28099288/assessing-the-agreement-between-radiologic-and-clinical-measurements-of-lumbar-and-cervical-epidural-depths-in-patients-undergoing-prone-interlaminar-epidural-steroid-injection
#1
James Harvey Jones, Naileshni Singh, Anna Nidecker, Chin-Shang Li, Scott Fishman
BACKGROUND: Fluoroscopy-guided epidural steroid injection (ESI) commonly is performed to treat radicular pain yet can lead to adverse events if the needle is not advanced with precision. Accurate preoperative assessment of the distance from the skin to the epidural space holds the potential for reducing the risks of adverse effects from ESI. It was hypothesized that the distance from the skin to the epidural space as measured on preoperative magnetic resonance imaging (MRI) would agree with the distance traveled by a Tuohy needle to reach the epidural space during midline, interlaminar ESI...
January 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28088539/the-dna-damage-response-of-c-elegans-affected-by-gravity-sensing-and-radiosensitivity-during-the-shenzhou-8-spaceflight
#2
Ying Gao, Dan Xu, Lei Zhao, Yeqing Sun
Space radiation and microgravity are recognized as primary and inevitable risk factors for humans traveling in space, but the reports regarding their synergistic effects remain inconclusive and vary across studies due to differences in the environmental conditions and intrinsic biological sensitivity. Thus, we studied the synergistic effects on transcriptional changes in the global genome and DNA damage response (DDR) by using dys-1 mutant and ced-1 mutant of C. elegans, which respectively presented microgravity-insensitivity and radiosensitivity when exposure to spaceflight condition (SF) and space radiation (SR)...
January 7, 2017: Mutation Research
https://www.readbyqxmd.com/read/28060293/automated-high-resolution-mobile-collection-system-for-the-nitrogen-isotopic-analysis-of-nox
#3
Paul K Wojtal, David J Miller, Mary O'Conner, Sydney C Clark, Meredith G Hastings
Nitrogen oxides (NOx = NO + NO2) are a family of atmospheric trace gases that have great impact on the environment. NOx concentrations directly influence the oxidizing capacity of the atmosphere through interactions with ozone and hydroxyl radicals. The main sink of NOx is the formation and deposition of nitric acid, a component of acid rain and a bioavailable nutrient. NOx is emitted from a mixture of natural and anthropogenic sources, which vary in space and time. The collocation of multiple sources and the short lifetime of NOx make it challenging to quantitatively constrain the influence of different emission sources and their impacts on the environment...
December 20, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28059283/modified-optical-fiber-daylighting-system-with-sunlight-transportation-in-free-space
#4
Ngoc-Hai Vu, Thanh-Tuan Pham, Seoyong Shin
We present the design, optical simulation, and experiment of a modified optical fiber daylighting system (M-OFDS) for indoor lighting. The M-OFDS is comprised of three sub-systems: concentration, collimation, and distribution. The concentration part is formed by coupling a Fresnel lens with a large-core plastic optical fiber. The sunlight collected by the concentration sub-system is propagated in a plastic optical fiber and then collimated by the collimator, which is a combination of a parabolic mirror and a convex lens...
December 26, 2016: Optics Express
https://www.readbyqxmd.com/read/28056909/active-travel-to-non-school-destinations-but-not-to-school-is-associated-with-higher-physical-activity-levels-in-an-ethnically-diverse-sample-of-inner-city-schoolchildren
#5
Lee Smith, Daniel Aggio, Mark Hamer
BACKGROUND: This study investigated the association of travel mode to school and non-school destinations with objectively assessed health markers and physical activity in an ethnically diverse sample of inner-city UK schoolchildren. METHODS: We used data from the Camden Active Spaces project (n = 450 children aged 9.1 yrs) to examine associations of school travel mode and frequency of active travel to non-school destinations with daily and out-of-school physical activity, sedentary time and health markers; whilst controlling for appropriate covariates including objectively measured route length...
January 5, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28056041/a-model-for-the-stop-planning-and-timetables-of-customized-buses
#6
Jihui Ma, Yanqing Zhao, Yang Yang, Tao Liu, Wei Guan, Jiao Wang, Cuiying Song
Customized buses (CBs) are a new mode of public transportation and an important part of diversified public transportation, providing advanced, attractive and user-led service. The operational activity of a CB is planned by aggregating space-time demand and similar passenger travel demands. Based on an analysis of domestic and international research and the current development of CBs in China and considering passenger travel data, this paper studies the problems associated with the operation of CBs, such as stop selection, line planning and timetables, and establishes a model for the stop planning and timetables of CBs...
2017: PloS One
https://www.readbyqxmd.com/read/28048634/tu-h-brb-01-physics-and-dosimetry-for-radiation-countermeasure-research
#7
J Bourland
: The US government has substantial research and development activities underway for medical countermeasures that will insure the long-term safety and survival of the country's population after unfortunate large-scale biological, chemical and radiological and nuclear events. Preparedness includes research and development of medical countermeasures to address radiation-induced cutaneous and internal injury from radiation and nuclear events as well as for minimizing radiation risks incurred during and after travel in space...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048539/tu-h-brb-04-radiation-countermeasures-and-the-nci-radiation-research-program
#8
P Prasanna
: The US government has substantial research and development activities underway for medical countermeasures that will insure the long-term safety and survival of the country's population after unfortunate large-scale biological, chemical and radiological and nuclear events. Preparedness includes research and development of medical countermeasures to address radiation-induced cutaneous and internal injury from radiation and nuclear events as well as for minimizing radiation risks incurred during and after travel in space...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048201/su-f-t-646-sbrt-lung-moving-beyond-the-3d-conformal-paradigm-with-an-elekta-versahd-accelerator
#9
A Dalhart, D Hyer, B Allen, R Flynn, H Johnston
PURPOSE: To develop a volumetric modulated arc therapy (VMAT) planning and delivery methodology for lung stereotactic body radiation therapy (SBRT) that addresses the unique geometric challenges presented when using an Elekta VersaHD linear accelerator. METHODS: The Elekta VersaHD imaging panels are fixed at 160cm SID when deployed, limiting the ability to perform non-coplanar treatments due to collisions with the treatment table. The panels can be folded in a stored position for non-coplanar treatments, but in this configuration, longitudinal table travel is restricted by the space required for the folded panels...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047970/tu-h-brb-02-the-niaid-radiation-nuclear-medical-countermeasures-program
#10
L Taliaferro
: The US government has substantial research and development activities underway for medical countermeasures that will insure the long-term safety and survival of the country's population after unfortunate large-scale biological, chemical and radiological and nuclear events. Preparedness includes research and development of medical countermeasures to address radiation-induced cutaneous and internal injury from radiation and nuclear events as well as for minimizing radiation risks incurred during and after travel in space...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047879/tu-h-brb-05-radiation-countermeasures-and-the-nasa-space-radiation-program
#11
J Huff
: The US government has substantial research and development activities underway for medical countermeasures that will insure the long-term safety and survival of the country's population after unfortunate large-scale biological, chemical and radiological and nuclear events. Preparedness includes research and development of medical countermeasures to address radiation-induced cutaneous and internal injury from radiation and nuclear events as well as for minimizing radiation risks incurred during and after travel in space...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047177/su-f-t-604-dosimetric-evaluation-of-intracranial-stereotactic-radiotherapy-plans-on-a-linac
#12
N Sheth, A Tabibian, J Rose, M Alvelo, C Perel, K Laiken, A Kim
PURPOSE: To evaluate the dosimetry of cranial stereotactic radiotherapy (SRT) plans of varying techniques on linac that meets appropriate TG-142 tolerances using 1 cm leaf width multileaf collimator (MLC). METHODS: Seventeen spherical targets were generated in the center of a head phantom with diameters ranging 8 mm to 40 mm. SRT plans used 100° non-coplanar arcs and 5 couch angles with 35° spacing. The field size was target plus 1 mm margin. Four plans were created for each target: symmetrical jaws blocking for 5 arcs with 0° collimator (J1C), symmetrical jaws blocking with 5 clockwise arcs with 0° collimator and 5 counter-clockwise arcs with 45° collimator (J2C), MLC blocking for 5 dynamic conformal arcs with 0° collimator (M1C), and MLC blocking for 5 clockwise dynamic conformal arcs with 0° collimators and 5 counter-clockwise dynamic conformal arcs with 45° collimator (M2C)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046580/tu-h-brb-00-radiation-countermeasures-research-and-development
#13
J Daniel
: The US government has substantial research and development activities underway for medical countermeasures that will insure the long-term safety and survival of the country's population after unfortunate large-scale biological, chemical and radiological and nuclear events. Preparedness includes research and development of medical countermeasures to address radiation-induced cutaneous and internal injury from radiation and nuclear events as well as for minimizing radiation risks incurred during and after travel in space...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046476/tu-h-brb-03-the-barda-chemical-radiological-nuclear-countermeasures-effort
#14
T Hu
: The US government has substantial research and development activities underway for medical countermeasures that will insure the long-term safety and survival of the country's population after unfortunate large-scale biological, chemical and radiological and nuclear events. Preparedness includes research and development of medical countermeasures to address radiation-induced cutaneous and internal injury from radiation and nuclear events as well as for minimizing radiation risks incurred during and after travel in space...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045616/integrating-oncology-massage-into-chemoinfusion-suites-a-program-evaluation
#15
Jun J Mao, Karen E Wagner, Christina M Seluzicki, Audra Hugo, Laura K Galindez, Heather Sheaffer, Kevin R Fox
OBJECTIVE: This article reports on the development, implementation, and evaluation of an integrative clinical oncology massage program for patients undergoing chemotherapy for breast cancer in a large academic medical center. MATERIALS AND METHODS: We describe the development and implementation of an oncology massage program embedded into chemoinfusion suites. We used deidentified program evaluation data to identify specific reasons individuals refuse massage and to evaluate the immediate impact of massage treatments on patient-reported outcomes using a modified version of the Distress Thermometer delivered via iPad...
January 3, 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/28045036/speed-hysteresis-and-noise-shaping-of-traveling-fronts-in-neural-fields-role-of-local-circuitry-and-nonlocal-connectivity
#16
Cristiano Capone, Maurizio Mattia
Neural field models are powerful tools to investigate the richness of spatiotemporal activity patterns like waves and bumps, emerging from the cerebral cortex. Understanding how spontaneous and evoked activity is related to the structure of underlying networks is of central interest to unfold how information is processed by these systems. Here we focus on the interplay between local properties like input-output gain function and recurrent synaptic self-excitation of cortical modules, and nonlocal intermodular synaptic couplings yielding to define a multiscale neural field...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28030568/space-use-and-movement-of-a-neotropical-top-predator-the-endangered-jaguar
#17
Ronaldo G Morato, Jared A Stabach, Chris H Fleming, Justin M Calabrese, Rogério C De Paula, Kátia M P M Ferraz, Daniel L Z Kantek, Selma S Miyazaki, Thadeu D C Pereira, Gediendson R Araujo, Agustin Paviolo, Carlos De Angelo, Mario S Di Bitetti, Paula Cruz, Fernando Lima, Laury Cullen, Denis A Sana, Emiliano E Ramalho, Marina M Carvalho, Fábio H S Soares, Barbara Zimbres, Marina X Silva, Marcela D F Moraes, Alexandre Vogliotti, Joares A May, Mario Haberfeld, Lilian Rampim, Leonardo Sartorello, Milton C Ribeiro, Peter Leimgruber
Accurately estimating home range and understanding movement behavior can provide important information on ecological processes. Advances in data collection and analysis have improved our ability to estimate home range and movement parameters, both of which have the potential to impact species conservation. Fitting continuous-time movement model to data and incorporating the autocorrelated kernel density estimator (AKDE), we investigated range residency of forty-four jaguars fit with GPS collars across five biomes in Brazil and Argentina...
2016: PloS One
https://www.readbyqxmd.com/read/28019054/interatrial-block-and-interatrial-septal-thickness-in-patients-with-paroxysmal-atrial-fibrillation-undergoing-catheter-ablation-long-term-follow-up-study
#18
Enes E Gul, Raveen Pal, Jane Caldwell, Usama Boles, Wilma Hopman, Benedict Glover, Kevin A Michael, Damian Redfearn, Chris Simpson, Hoshiar Abdollah, Adrian Baranchuk
BACKGROUND: Interatrial block (IAB) is a strong predictor of recurrence of atrial fibrillation (AF). IAB is a conduction delay through the Bachman region, which is located in the upper region of the interatrial space. During IAB, the impulse travels from the right atrium to the interatrial septum (IAS) and coronary sinus to finally reach the left atrium in a caudocranial direction. No relation between the presence of IAB and IAS thickness has been established yet. OBJECTIVE: To determine whether a correlation exists between the degree of IAB and the thickness of the IAS and to determine whether IAS thickness predicts AF recurrence...
December 25, 2016: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28007494/built-environmental-factors-and-adults-travel-behaviors-role-of-street-layout-and-local-destinations
#19
Mohammad Javad Koohsari, Neville Owen, Rachel Cole, Suzanne Mavoa, Koichiro Oka, Tomoya Hanibuchi, Takemi Sugiyama
Street layout is consistently associated with adults' travel behaviors, however factors influencing this association are unclear. We examined associations of street layout with travel behaviors: walking for transport (WT) and car use; and, the extent to which these relationships may be accounted for by availability of local destinations. A 24-h travel diary was completed in 2009 by 16,345 adult participants of the South-East Queensland Household Travel Survey, Australia. Three travel-behavior outcomes were derived: any home-based WT; over 30min of home-based WT; and, over 60min of car use...
December 19, 2016: Preventive Medicine
https://www.readbyqxmd.com/read/27993187/hibernation-for-space-travel-impact-on-radioprotection
#20
REVIEW
Matteo Cerri, Walter Tinganelli, Matteo Negrini, Alexander Helm, Emanuele Scifoni, Francesco Tommasino, Maximiliano Sioli, Antonio Zoccoli, Marco Durante
Hibernation is a state of reduced metabolic activity used by some animals to survive in harsh environmental conditions. The idea of exploiting hibernation for space exploration has been proposed many years ago, but in recent years it is becoming more realistic, thanks to the introduction of specific methods to induce hibernation-like conditions (synthetic torpor) in non-hibernating animals. In addition to the expected advantages in long-term exploratory-class missions in terms of resource consumptions, aging, and psychology, hibernation may provide protection from cosmic radiation damage to the crew...
November 2016: Life Sciences in Space Research
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