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https://www.readbyqxmd.com/read/29151384/endoscopic-ear-surgery-in-the-ear-camp-setting-forward-thinking-or-folly
#1
M P A Clark
BACKGROUND: Endoscopic ear surgery is becoming an accepted technique in otological surgery, in the management of chronic otitis media. METHODS: The technique was introduced to the humanitarian care setting of an ear camp in Nepal to consider the appropriateness of the technique in this type of clinical setting. RESULTS: Fifteen cases of myringoplasty were successfully completed. CONCLUSION: The apparent advantages of the endoscopic approach over the traditional microscopic one were the ease of transporting the equipment and the optimal view obtained of the tympanic membrane...
November 20, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/29145728/understanding-how-emergency-medicine-physicians-survive-and-thrive-in-rural-practice-a-theoretical-model
#2
Ashra Kolhatkar, Andrea Keesey, Bob Bluman, Brenna Lynn, Tandi Wilkinson
INTRODUCTION: The challenges facing emergency medicine (EM) services in Canada reflect the limitations of the entire healthcare system. The emergency department (ED) is uniquely situated in the healthcare system such that shortcomings in hospital- and community-based services are often first revealed there. This is especially true in rural settings, where there are additional site-specific barriers to the provision of EM care. Existing studies look at the factors that influence rural EM physicians in isolation...
November 2017: Rural and Remote Health
https://www.readbyqxmd.com/read/29139261/-study-on-suitable-distribution-areas-of-sichuan-safflower-in-sichuan-province-based-on-3s-technologies
#3
Wu-Xue Cheng, Guang Dong, Ming-Yan Wu, Lan He, Jia-Li Chen
Sichuan safflower (Carthamus tinctorius) is a traditional Chinese medicine for promoting blood circulation and removing blood stasis. In this paper, taking Sichuan province as an example, based on TM image, digital elevation model (DEM), meteorology, soil and other data, and using remote sensing and GIS technology to extract grassland, elevation, temperature and precipitation, soil and other influencing factors, the spatial distribution of the suitability of safflower was studied, and the field investigation was carried out...
August 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29116528/a-contemporary-assessment-of-polybrominated-diphenyl-ethers-pbde-in-the-ambient-air-and-soil-of-azerbaijan
#4
Gulchohra Aliyeva, Carrie Amber Sinnott-Clark, Ondřej Audy, Lenka Škrdlíková, Petr Kukučka, Jana Klánová, Crispin Halsall
PBDEs were measured in air and soil across Azerbaijan to establish contemporary concentrations at 13 urban and rural sites. Polyurethane foam passive air samplers (PUF-PAS) were deployed for a period of a month with surface soil samples collected at the same sites. Unlike organochlorine pesticides previously surveyed by our group, PBDE concentrations in both contemporary air and soil were low in comparison to recent European and Asian studies. For example, mean ∑9PBDE concentrations in air and soil were 7...
November 7, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29101908/using-drone-mounted-cameras-for-on-site-body-documentation-3d-mapping-and-active-survey
#5
Petra Urbanová, Mikoláš Jurda, Tomáš Vojtíšek, Jan Krajsa
Recent advances in unmanned aerial technology have substantially lowered the cost associated with aerial imagery. As a result, forensic practitioners are today presented with easy low-cost access to aerial photographs at remote locations. The present paper aims to explore boundaries in which the low-end drone technology can operate as professional crime scene equipment, and to test the prospects of aerial 3D modeling in the forensic context. The study was based on recent forensic cases of falls from height admitted for postmortem examinations...
October 26, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29099317/virtual-microscopy-in-histopathology-training-changing-student-attitudes-in-3-successive-academic-years
#6
Christof A Bertram, Theresa Firsching, Robert Klopfleisch
Several veterinary faculties have integrated virtual microscopy into their curricula in recent years to improve and refine their teaching techniques. The many advantages of this recent technology are described in the literature, including remote access and an equal and constant slide quality for all students. However, no study has analyzed the change of perception toward virtual microscopy at different time points of students' academic educations. In the present study, veterinary students in 3 academic years were asked for their perspectives and attitudes toward virtual microscopy and conventional light microscopy...
November 3, 2017: Journal of Veterinary Medical Education
https://www.readbyqxmd.com/read/29098171/the-mars-science-laboratory-msl-mast-cameras-and-descent-imager-investigation-and-instrument-descriptions
#7
Michal C Malin, Michael A Ravine, Michael A Caplinger, F Tony Ghaemi, Jacob A Schaffner, Justin N Maki, James F Bell, James F Cameron, William E Dietrich, Kenneth S Edgett, Laurence J Edwards, James B Garvin, Bernard Hallet, Kenneth E Herkenhoff, Ezat Heydari, Linda C Kah, Mark T Lemmon, Michelle E Minitti, Timothy S Olson, Timothy J Parker, Scott K Rowland, Juergen Schieber, Ron Sletten, Robert J Sullivan, Dawn Y Sumner, R Aileen Yingst, Brian M Duston, Sean McNair, Elsa H Jensen
The Mars Science Laboratory Mast camera and Descent Imager investigations were designed, built, and operated by Malin Space Science Systems of San Diego, CA. They share common electronics and focal plane designs but have different optics. There are two Mastcams of dissimilar focal length. The Mastcam-34 has an f/8, 34 mm focal length lens, and the M-100 an f/10, 100 mm focal length lens. The M-34 field of view is about 20° × 15° with an instantaneous field of view (IFOV) of 218 μrad; the M-100 field of view (FOV) is 6...
August 2017: Earth and Space Science (Hoboken, N.J.)
https://www.readbyqxmd.com/read/29091628/methods-of-polarimetric-calibration-and-reconstruction-for-a-fieldable-channeled-dispersive-imaging-spectropolarimeter
#8
Bin Yang, Junqiang Zhang, Changxiang Yan, Xueping Ju
Polarimetric calibration and reconstruction methods for a fieldable channeled dispersive imaging spectropolarimeter (CDISP) are presented. A theoretical model for the polarimetric calibration is derived first. In the polarimetric calibration for the CDISP, the alignment errors of the polarimetric spectral intensity modulation module, and the polarization effects of the optical system and phase factors of the high-order retarders at different viewing angles, are considered and determined independently. Based on the results of the polarimetric calibration, the Stokes vector of the target is reconstructed through the derived reconstruction model...
October 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/29081837/new-ways-of-working-delivering-better-care-for-people-with-long-term-conditions
#9
Victoria Tzortziou Brown, Irem Patel, Nicola Thomas, James Tomlinson, Rachel Roberts, Hugh Rayner, Neil Ashman, Sally Hull
BACKGROUND: The cost-effectiveness of the traditional outpatient model for specialist care provision is increasingly being questioned in view of the changing patient needs, workforce challenges and technological advances. SETTING: This report summarises two RCGP London events showcasing new ways of delivering care for long-term conditions. QUESTIONS: What are the alternative approaches to the traditional outpatient model and do they have common themes? What are the challenges and opportunities of these new models of care? METHODS: Presentation of examples of new ways of long-term condition care delivery and round-table facilitative discussion and reflection on the challenges and solutions around service re-design and implementation, the commissioning and funding of new models of care, the facilitation of system-wide learning and the collection of data for evaluation...
September 2017: London Journal of Primary Care
https://www.readbyqxmd.com/read/29078580/magnetic-anchoring-guidance-system-in-video-assisted-thoracic-surgery
#10
REVIEW
Agnese Giaccone, Piergiorgio Solli, Luca Bertolaccini
The magnetic anchoring guidance system (MAGS) is one of the most promising technological innovations in minimally invasive surgery and consists in two magnetic elements matched through the abdominal or thoracic wall. The internal magnet can be inserted into the abdominal or chest cavity through a small single incision and then moved into position by manipulating the external component. In addition to a video camera system, the inner magnetic platform can house remotely controlled surgical tools thus reducing instruments fencing, a serious inconvenience of the uniportal access...
2017: J Vis Surg
https://www.readbyqxmd.com/read/29076529/high-resolution-mitochondrial-dna-analysis-sheds-light-on-human-diversity-cultural-interactions-and-population-mobility-in-northwestern-amazonia
#11
Leonardo Arias, Chiara Barbieri, Guillermo Barreto, Mark Stoneking, Brigitte Pakendorf
OBJECTIVES: Northwestern Amazonia (NWA) is a center of high linguistic and cultural diversity. Several language families and linguistic isolates occur in this region, as well as different subsistence patterns, with some groups being foragers and others agriculturalists. In addition, speakers of Eastern Tukanoan languages are known for practicing linguistic exogamy, a marriage system in which partners are taken from different language groups. In this study, we use high-resolution mitochondrial DNA sequencing to investigate the impact of this linguistic and cultural diversity on the genetic relationships and population structure of NWA groups...
October 27, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29060230/remote-gaze-tracking-system-for-3d-environments
#12
Congcong Liu, Karl Herrup, Bertram E Shi
Eye tracking systems are typically divided into two categories: remote and mobile. Remote systems, where the eye tracker is located near the object being viewed by the subject, have the advantage of being less intrusive, but are typically used for tracking gaze points on fixed two dimensional (2D) computer screens. Mobile systems such as eye tracking glasses, where the eye tracker are attached to the subject, are more intrusive, but are better suited for cases where subjects are viewing objects in the three dimensional (3D) environment...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29058940/much-ado-about-aha-insight-problem-solving-is-strongly-related-to-working-memory-capacity-and-reasoning-ability
#13
Adam Chuderski, Jan Jastrzębski
A battery comprising 4 fluid reasoning tests as well as 13 working memory (WM) tasks that involved storage, recall, updating, binding, and executive control, was applied to 318 adults in order to evaluate the true relationship of reasoning ability and WM capacity (WMC) to insight problem solving, measured using 40 verbal, spatial, math, matchstick, and remote associates problems (insight problems). WMC predicted 51.8% of variance in insight problem solving and virtually explained its almost isomorphic link to reasoning ability (84...
October 23, 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/29051619/person-identification-from-aerial-footage-by-a-remote-controlled-drone
#14
Markus Bindemann, Matthew C Fysh, Sophie S K Sage, Kristina Douglas, Hannah M Tummon
Remote-controlled aerial drones (or unmanned aerial vehicles; UAVs) are employed for surveillance by the military and police, which suggests that drone-captured footage might provide sufficient information for person identification. This study demonstrates that person identification from drone-captured images is poor when targets are unfamiliar (Experiment 1), when targets are familiar and the number of possible identities is restricted by context (Experiment 2), and when moving footage is employed (Experiment 3)...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29048028/re-examining-the-effect-of-particle-phase-functions-on-the-remote-sensing-reflectance
#15
Yuanheng Xiong, Xiaodong Zhang, Shuangyan He, Deric J Gray
Even though it is well known that both the magnitude and detailed angular shape of scattering (phase function, PF), particularly in the backward angles, affect the color of the ocean, the current remote-sensing reflectance (Rrs) models typically account for the effect of its magnitude only through the backscattering coefficient (bb). Using 116 volume scattering function (VSF) measurements previously collected in three coastal waters around the U.S. and in the water of the North Atlantic Ocean, we re-examined the effect of particle PF on Rrs in four scenarios...
August 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/29048022/polarization-properties-of-receiving-telescopes-in-atmospheric-remote-sensing-polarization-lidars
#16
Jing Luo, Dong Liu, Zihao Huang, Binyu Wang, Jian Bai, Zhongtao Cheng, Yupeng Zhang, Peijun Tang, Liming Yang, Lin Su
A receiving telescope is an indispensable component in an atmospheric remote sensing polarization lidar. In order to achieve accurate atmospheric depolarization measurements, it is necessary to study the polarization properties of receiving telescopes, which are embodied by their Mueller matrices. In this paper, the Mueller matrices of receiving telescopes are obtained by ray tracing with space vectors. The relationship between the measurement errors of the atmospheric depolarization parameter and the elements of the Mueller matrix of receiving telescopes is derived...
August 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/29047991/mwir-thermal-imaging-spectrometer-based-on-the-acousto-optic-tunable-filter
#17
Huijie Zhao, Zheng Ji, Guorui Jia, Ying Zhang, Yansong Li, Daming Wang
Mid-wavelength IR (MWIR) thermal imaging spectrometers are widely used in remote sensing, industrial detection, and military applications. The acousto-optic tunable filter (AOTF)-based spectrometer has the advantages of fast tuning, light weight, and no moving parts, which make it ideally suited for MWIR applications. However, when designing an AOTF imaging spectrometer, the traditional method uses a refractive grating or parallel glass model in optical design software to simulate the AOTF, lowering the imaging performance of the optical system...
September 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/29047778/low-cost-dynamic-real-time-foveated-imager
#18
Yajun Niu, Jun Chang, Fengxiang Lv, Benlan Shen, Weilin Chen
Foveated imaging systems have the ability to capture local high-resolution or high-magnification images with wide field of view (FOV); thus, they have great potential for applications in the field of monitoring and remote sensing of unmanned aerial vehicles. Hence, foveated optical systems are in strong demand. However, the existing foveated imaging systems either are equipped with expensive modulators or require fixing the local high resolution imaging field, which is not suitable for mass production or object tracking in industrial applications...
October 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/29037187/designing-equitable-workplace-dietary-interventions-perceptions-of-intervention-deliverers
#19
Sarah A Smith, Shelina Visram, Claire O'Malley, Carolyn Summerbell, Vera Araujo-Soares, Frances Hillier-Brown, Amelia A Lake
BACKGROUND: Workplaces are a good setting for interventions that aim to support workers in achieving a healthier diet and body weight. However, little is known about the factors that impact on the feasibility and implementation of these interventions, and how these might vary by type of workplace and type of worker. The aim of this study was to explore the views of those involved in commissioning and delivering the Better Health at Work Award, an established and evidence-based workplace health improvement programme...
October 16, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29036292/association-between-implantable-cardioverter-defibrillator-therapy-and-different-lead-positions-in-patients-with-cardiac-resynchronization-therapy
#20
Mads Brix Kronborg, Jens Brock Johansen, Jens Haarbo, Sam Riahi, Berit Thornvig Philbert, Ole Dan Jørgensen, Jens Cosedis Nielsen
Aims: To evaluate the impact of different right and left ventricular lead positions (RV-LP and LV-LP) on the risk of therapy for ventricular tachycardia/ventricular fibrillation in patients with a cardiac resynchronization therapy device (CRT-D). Methods and results: We performed a large nationwide cohort study on patients in Denmark receiving a CRT-D device from 2008 to 2012 from the Danish Pacemaker and implantable cardioverter defibrillator (ICD) registry. Lead positions were registered during the implantation and categorized as anterior/lateral/posterior and basal/mid-ventricular/apical for the LV-LP, and as apical/non-apical for the RV-LP...
September 27, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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