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https://www.readbyqxmd.com/read/28101879/private-sector-involvement-in-times-of-armed-conflict-what-are-the-constraints-for-trading-medical-equipment
#1
Georg Schmidt
OBJECTIVE: Today, healthcare facilities are highly dependent on the private sector to keep their medical equipment functioning. Moreover, private sector involvement becomes particularly important for the supply of spare parts and consumables. However, in times of armed conflict, the capacity of the corporate world appears to be seriously hindered. Subsequently, this study researches the influence of armed conflict on the private medical equipment sector. DESIGN: This study follows a qualitative approach by conducting 19 interviews with representatives of the corporate world in an active conflict zone...
November 2016: Journal of Emergency Management: JEM
https://www.readbyqxmd.com/read/28101398/wide-field-retinal-optical-coherence-tomography-with-wavefront-sensorless-adaptive-optics-for-enhanced-imaging-of-targeted-regions
#2
James Polans, Brenton Keller, Oscar M Carrasco-Zevallos, Francesco LaRocca, Elijah Cole, Heather E Whitson, Eleonora M Lad, Sina Farsiu, Joseph A Izatt
The peripheral retina of the human eye offers a unique opportunity for assessment and monitoring of ocular diseases. We have developed a novel wide-field (>70°) optical coherence tomography system (WF-OCT) equipped with wavefront sensorless adaptive optics (WSAO) for enhancing the visualization of smaller (<25°) targeted regions in the peripheral retina. We iterated the WSAO algorithm at the speed of individual OCT B-scans (~20 ms) by using raw spectral interferograms to calculate the optimization metric...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28094390/simultaneous-measurement-of-the-young-s-modulus-and-the-poisson-ratio-of-thin-elastic-layers
#3
Wolfgang Gross, Holger Kress
The behavior of cells and tissue is greatly influenced by the mechanical properties of their environment. For studies on the interactions between cells and soft matrices, especially those applying traction force microscopy the characterization of the mechanical properties of thin substrate layers is essential. Various techniques to measure the elastic modulus are available. Methods to accurately measure the Poisson ratio of such substrates are rare and often imply either a combination of multiple techniques or additional equipment which is not needed for the actual biological studies...
January 17, 2017: Soft Matter
https://www.readbyqxmd.com/read/28094028/annual-10-month-aerial-life-phase-in-the-common-swift-apus-apus
#4
Anders Hedenström, Gabriel Norevik, Kajsa Warfvinge, Arne Andersson, Johan Bäckman, Susanne Åkesson
The common swift (Apus apus) is adapted to an aerial lifestyle, where food and nest material are captured in the air. Observations have prompted scientists to hypothesize that swifts stay airborne for their entire non-breeding period [1, 2], including migration into sub-Saharan Africa [3-5]. It is mainly juvenile common swifts that occasionally roost in trees or buildings before autumn migration when weather is bad [1, 6]. In contrast, the North American chimney swift (Chaetura pelagica) and Vaux's swift (C...
November 21, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/28092144/exergaming-boxing-versus-heavy-bag-boxing-are-these-equipotent-for-individuals-with-spinal-cord-injury
#5
Maziah Mat Rosly, Hadi Mat Rosly, Nazirah Hasnan, Glen M Davis, Ruby Husain
BACKGROUND: Current strategies for increased physical activity and exercise in individuals with spinal cord injury (SCI) face many challenges with regards to maintaining their continuity of participation. Barriers cited often include problems with accessing facilities, mundane, monotonous or boring exercises and expensive equipment that is often not adapted for wheelchair users. AIM: To compare the physiological responses and user preferences between conventional heavy bag boxing against a novel form of video game boxing, known as exergaming boxing...
January 13, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28089249/redundant-and-fault-tolerant-algorithms-for-real-time-measurement-and-control-systems-for-weapon-equipment
#6
Dan Li, Xiaoguang Hu
Because of the high availability requirements from weapon equipment, an in-depth study has been conducted on the real-time fault-tolerance of the widely applied Compact PCI (CPCI) bus measurement and control system. A redundancy design method that uses heartbeat detection to connect the primary and alternate devices has been developed. To address the low successful execution rate and relatively large waste of time slices in the primary version of the task software, an improved algorithm for real-time fault-tolerant scheduling is proposed based on the Basic Checking available time Elimination idle time (BCE) algorithm, applying a single-neuron self-adaptive proportion sum differential (PSD) controller...
January 12, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28087202/family-adaptation-to-cerebral-palsy-in-adolescents-a-european-multicenter-study
#7
Audrey Guyard, Susan I Michelsen, Catherine Arnaud, Jerome Fauconnier
BACKGROUND AND AIM: Factors promoting family adaptation to child's disability are poorly studied together. The aim of the study was to describe the family adaptation to disability and to identify determinants associated with using a global theoretical model. MATERIALS AND METHODS: 286 families of teenagers [13-17 years] with cerebral palsy (CP) from 4 European disability registers were included and visited at home. Face to face interviews were performed in order to measure parental distress, perceived impact in various dimensions of family life, family resources and stressors...
January 10, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28046905/su-f-i-10-spatially-local-statistics-for-adaptive-image-filtering
#8
A S Iliopoulos, D Floros, Y Zhang, N Pitsianis, X Sun, F F Yin, L Ren
PURPOSE: To facilitate adaptive image filtering operations, addressing spatial variations in both noise and signal. Such issues are prevalent in cone-beam projections, where physical effects such as X-ray scattering result in spatially variant noise, violating common assumptions of homogeneous noise and challenging conventional filtering approaches to signal extraction and noise suppression. METHODS: We present a computational mechanism for probing into and quantifying the spatial variance of noise throughout an image...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046785/su-f-j-173-online-replanning-for-dose-painting-based-on-changing-adc-map-of-pancreas-cancer
#9
O Ates, E Ahunbay, B Erickson, X Li
PURPOSE: The introduction of MR-guided radiation therapy (RT), e.g., MR-Linac, would allow dose painting to adapt spatial RT response revealed from MRI data during the RT delivery. The purpose of this study is to investigate the use of an online replanning method to adapt dose painting from the MRI Apparent Diffusion Coefficient (ADC) map acquired during the delivery of RT for pancreatic cancers. METHODS: Original dose painting plans were created based on multi-parametric simulation MRI including T1, T2 and ADC, using a treatment planning system (MONACO, Elekta) equipped with an online replanning algorithm (WSO, warm start optimization)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046655/su-f-t-169-a-periodic-quality-assurance-program-for-a-spot-scanning-proton-treatment-facility
#10
D Mundy, E Tryggestad, C Beltran, K Furutani, G Gilson, S Ito, J Johnson, J Kruse, N Remmes, A Tasson, T Whitaker, M Herman
PURPOSE: To develop daily and monthly quality assurance (QA) programs in support of a new spot-scanning proton treatment facility using a combination of commercial and custom equipment and software. Emphasis was placed on efficiency and evaluation of key quality parameters. METHODS: The daily QA program was developed to test output, spot size and position, proton beam energy, and image guidance using the Sun Nuclear Corporation rf-DQA™3 device and Atlas QA software...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046617/tu-ab-bra-12-quality-assurance-of-an-integrated-magnetic-resonance-image-guided-adaptive-radiotherapy-machine-using-cherenkov-imaging
#11
J Andreozzi, K Mooney, P Bruza, A Curcuru, S Saunders, D Gladstone, B Pogue, O Green
PURPOSE: To investigate the viability of using Cherenkov imaging as a fast and robust method for quality assurance tests in the presence of a magnetic field, where other instruments can be limited. METHODS: Water tank measurements were acquired from a clinically utilized adaptive magnetic resonance image guided radiation therapy (MR-IGRT) machine with three multileaf-collimator equipped 60Co sources. Cherenkov imaging used an intensified charge coupled device (ICCD) camera placed 3...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046273/su-f-t-586-pre-treatment-qa-of-incise2-mlc-plans-on-a-cyberknife-m6-using-the-delta4-system-in-sbrt
#12
D Schmidhalter, D Henzen, M Malthaner, D Frauchiger, M K Fix, P Manser
PURPOSE: Performing pre-treatment quality assurance (QA) with the Delta4 system (ScandiDos Inc., Madison, WI) is well established for linac-based radiotherapy. This is not true when using a Cyberknife (Accuray Inc., Sunnyvale, CA) where, typically film-based QA is applied. The goal of this work was to test the feasibility to use the Delta4 system for pre-treatment QA for stereotactic body radiation therapy (SBRT) using a Cyberknife-M6 equipped with the InCise2 multileaf collimator (MLC)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28039630/sublethal-effect-assessment-of-a-low-power-and-dual-frequency-anti-cyanobacterial-ultrasound-device-on-the-common-carp-cyprinus-carpio-a-field-study
#13
Didier Techer, Sylvain Milla, Damien Banas
The use of ultrasonication for cyanobacterial control in freshwater bodies has become increasingly popular during the last decades despite controversial efficiency on large scale application. Apart from that, little information is currently available regarding ultrasound toxicity potential towards non-target species. This work was designed to address this issue in the common carp using a low-power (7-9 W output) and dual-frequency (23 and 46 kHz) anti-cyanobacterial ultrasound device. Results showed that carps were unaffected by ultrasound exposure when exposed in floating cages in fish ponds over a 30-day period...
December 30, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28030934/the-physiotherapeutic-context-of-loss-of-dominant-arm-function-due-to-occupational-accidents
#14
Anna Kostiukow, Elżbieta Kaluga, Włodzimierz Samborski, Elżbieta Rostkowska
INTRODUCTION: The study examines the problem of dominant arm function loss in rural adult patients due to work-related accidents. The types of risks involved in farmyard work include falling from a height, manually moving loads, overturning/accident whilst driving an agricultural tractor, noise and vibration, use of pesticides, and the risk of being cut or injured. The study focuses on adaptation of the non-dominant arm. OBJECTIVE: The main aim of the study was evaluation of visual-motor coordination on the basis of performance of the non-dominant hand in patients after the loss of function of the dominant arm...
23, 2016: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28028677/psychosocial-influences-on-disaster-preparedness-in-san-francisco-recipients-of-home-care
#15
Robyn R Gershon, Elena Portacolone, Ezinne M Nwankwo, Qi Zhi, Kristine A Qureshi, Victoria H Raveis
Disasters disproportionately impact certain segments of the population, including children, pregnant women, people living with disabilities and chronic conditions and those who are underserved and under-resourced. One of the most vulnerable groups includes the community-dwelling elderly. Post-disaster analyses indicate that these individuals have higher risk of disaster-related morbidity and mortality. They also have suboptimal levels of disaster preparedness in terms of their ability to shelter-in-place or evacuate to a shelter...
December 27, 2016: Journal of Urban Health: Bulletin of the New York Academy of Medicine
https://www.readbyqxmd.com/read/28009574/p13-the-embl-macromolecular-crystallography-beamline-at-the-low-emittance-petra-iii-ring-for%C3%A2-high-and-low-energy-phasing-with-variable-beam-focusing
#16
Michele Cianci, Gleb Bourenkov, Guillaume Pompidor, Ivars Karpics, Johanna Kallio, Isabel Bento, Manfred Roessle, Florent Cipriani, Stefan Fiedler, Thomas R Schneider
The macromolecular crystallography P13 beamline is part of the European Molecular Biology Laboratory Integrated Facility for Structural Biology at PETRA III (DESY, Hamburg, Germany) and has been in user operation since mid-2013. P13 is tunable across the energy range from 4 to 17.5 keV to support crystallographic data acquisition exploiting a wide range of elemental absorption edges for experimental phase determination. An adaptive Kirkpatrick-Baez focusing system provides an X-ray beam with a high photon flux and tunable focus size to adapt to diverse experimental situations...
January 1, 2017: Journal of Synchrotron Radiation
https://www.readbyqxmd.com/read/28007399/evaluating-the-methylation-status-of-cxcr4-promoter-a-cost-effective-and-sensitive-two-step-pcr-method
#17
Valentina Bianchessi, Andrea Lauri, Vera Vigorelli, Martina Toia, Maria Cristina Vinci
The chemokine receptor CXCR4 plays a key role in the bone marrow microenvironment maintenance and in the hematopoietic stem and progenitor cells migration. In addition, CXCR4 is expressed in a broad spectrum of solid tumors where its methylation state has been recently proposed as a biomarker for cancer prognosis. To evaluate methylation status of CXCR4 promoter we developed a sensitive, accurate, specific and cost-effective two-step PCR method that does not require any specific equipment other than a conventional real-time PCR instrument...
February 15, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28002941/equipping-nanocarriers-specifically-toward-cargo-a-competitive-study-on-solubilizing-related-photosensitizers-for-photodynamic-therapy
#18
Sebastian Wieczorek, Dario Remmler, Tiziana Masini, Zdravko Kochovski, Anna K H Hirsch, Hans G Boerner
Advancing drug delivery systems by introducing peptide segments which constitute a binding motive for small molecule drugs is giving rise to next generation drug specific transporters or formulation additives. Programing the drug-carrier interactions precisely enables fine-tuning of drug binding, release profiles and reduction of potential adverse co-transport. Suitable peptides are selected via combinatorial means by screening one-bead-one-compound (OBOC) peptide libraries that cover large sequential spaces...
December 21, 2016: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/27999577/latin-america-a-development-pole-for-phenomics
#19
Anyela V Camargo, Gustavo A Lobos
Latin America and the Caribbean (LAC) has long been associated with the production and export of a diverse range of agricultural commodities. Due to its strategic geographic location, which encompasses a wide range of climates, it is possible to produce almost any crop. The climate diversity in LAC is a major factor in its agricultural potential but this also means climate change represents a real threat to the region. Therefore, LAC farming must prepare and quickly adapt to an environment that is likely to feature long periods of drought, excessive rainfall and extreme temperatures...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27995325/-histology-of-the-living-eye-noninvasive-microscopic-structure-and-functional-analysis-of-the-retina-with-adaptive-optics
#20
N Domdei, J L Reiniger, M Pfau, P Charbel Issa, F G Holz, W M Harmening
Equipping an ophthalmoscope with adaptive optics (AO) offers access to the living human retina with unprecedented spatial resolution. With AO, cellular structures such as the nerve fiber layer, the microvasculature of the smallest retinal capillaries, rod and cone photoreceptors and the mosaic of the retinal pigment epithelium are directly observable. A large number of studies in the normal and diseased retina have already shown that this level of detail offers new insights into disease mechanisms and progression, and promises to identify early disease markers...
December 19, 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
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