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https://www.readbyqxmd.com/read/27903784/terrain-following-and-applications-caenorhabditis-elegans-swims-along-the-floor-using-a-bump-and-undulate-strategy
#1
Jinzhou Yuan, Hungtang Ko, David M Raizen, Haim H Bau
Nematodes such as Caenorhabditis elegans are heavier than water. When submerged in water, they settle to the bottom surface. Observations reveal that the animals do not lie flat on the bottom surface, but remain substantially suspended above the surface through continuous collisions with the surface, while maintaining their swimming gaits. Consequently, the swimming animals follow the bottom surface topography. When the bottom surface is inclined, the animals swim up or down along the incline. As the magnitude of the gravitational force can be easily estimated, this behaviour provides a convenient means to estimate the animal's propulsive thrust...
November 2016: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/27888138/the-quality-of-placebos-used-in-randomized-controlled-trials-of-lumbar-and-pelvic-joint-thrust-manipulation-a-systematic-review
#2
REVIEW
Aaron A Puhl, Christine J Reinhart, Jon B Doan, Howard Vernon
BACKGROUND CONTEXT: Spinal manipulative therapy (SMT) has been attributed with substantial non-specific effects. Accurate assessment of the non-specific effects of SMT relies on high-quality studies with low risk of bias that compare to appropriate placebos. PURPOSE: This review aims to characterize the types and qualities of placebo control procedures used in controlled trials of manually-applied, lumbar and pelvic (LP) SMT, and to evaluate the assessment of subject blinding and expectations...
November 22, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27878541/gendered-knowledge-and-adaptive-practices-differentiation-and-change-in-mwanga-district-tanzania
#3
Thomas A Smucker, Elizabeth Edna Wangui
We examine the wider social knowledge domain that complements technical and environmental knowledge in enabling adaptive practices through two case studies in Tanzania. We are concerned with knowledge production that is shaped by gendered exclusion from the main thrusts of planned adaptation, in the practice of irrigation in a dryland village and the adoption of fast-maturing seed varieties in a highland village. The findings draw on data from a household survey, community workshops, and key informant interviews...
December 2016: Ambio
https://www.readbyqxmd.com/read/27803983/a-comparison-of-single-handed-chin-lift-and-two-handed-jaw-thrust-for-tracheal-intubation-using-a-lightwand
#4
Seong-Mi Yang, Hyerim Kim, Jee-Eun Chang, Seong-Won Min, Jung-Man Lee, Jin-Young Hwang
PURPOSE: In the present study, we evaluated the effects of single-handed chin lift and two-handed jaw thrust on lightwand-guided intubation and postoperative sore throat. METHODS: Sixty adult patients were included in the study. After induction of anesthesia, intubation was performed using a lightwand under single-handed chin lift or two-handed jaw thrust. In the single-handed chin lift group, the lightwand was inserted with the right hand after the mandible was lifted by placing the thumb of the left hand into the mouth...
November 1, 2016: Journal of Anesthesia
https://www.readbyqxmd.com/read/27791309/a-very-human-being-sister-marie-simone-roach-1922-2016
#5
Michael J Villeneuve, Verena Tschudin, Janet Storch, Marsha D M Fowler, Elizabeth Peter
Sister (Sr.) Marie Simone Roach, of the Sisters of St. Martha of Antigonish, Nova Scotia, died at the Motherhouse on 2 July 2016 at the age of 93, leaving behind a rich legacy of theoretical and practical work in the areas of care, caring and nursing ethics. She was a humble soul whose deep and scholarly thinking thrust her onto the global nursing stage where she will forever be tied to a central concept in nursing, caring, through her Six Cs of Caring model. In Canada, she was the lead architect of the Canadian Nurses Association's first code of ethics, and her influence on revisions to it is still profound more than 35 years later...
October 28, 2016: Nursing Inquiry
https://www.readbyqxmd.com/read/27789226/reducing-temperature-elevation-of-robotic-bone-drilling
#6
Arne Feldmann, Jasmin Wandel, Philippe Zysset
This research work aims at reducing temperature elevation of bone drilling. An extensive experimental study was conducted which focused on the investigation of three main measures to reduce the temperature elevation as used in industry: irrigation, interval drilling and drill bit designs. Different external irrigation rates (0 ml/min, 15 ml/min, 30 ml/min), continuously drilled interval lengths (2 mm, 1 mm, 0.5 mm) as well as two drill bit designs were tested. A custom single flute drill bit was designed with a higher rake angle and smaller chisel edge to generate less heat compared to a standard surgical drill bit...
October 24, 2016: Medical Engineering & Physics
https://www.readbyqxmd.com/read/27786609/heterologous-protein-production-in-plant-systems
#7
Siddhesh B Ghag, Vinayak S Adki, Thumballi R Ganapathi, Vishwas A Bapat
Production of recombinant proteins is primarily established in cultures of mammalian, insect, and bacterial cells. Concurrently, concept of using plants to produce high-value pharmaceuticals such as vaccines, antibodies and dietary proteins have received worldwide attention. Newer technologies for plant transformation such as plastid engineering, agroinfiltration, magnifection and deconstructed viral vectors have been used to enhance protein production in plants along with the inherent advantage of speed, scale and cost of production in plant systems...
October 27, 2016: GM Crops & Food
https://www.readbyqxmd.com/read/27783643/cryptic-disc-structures-resembling-ediacaran-discoidal-fossils-from-the-lower-silurian-hellefjord-schist-arctic-norway
#8
Christopher L Kirkland, Breandán A MacGabhann, Brian L Kirkland, J Stephen Daly
The Hellefjord Schist, a volcaniclastic psammite-pelite formation in the Caledonides of Arctic Norway contains discoidal impressions and apparent tube casts that share morphological and taphonomic similarities to Neoproterozoic stem-holdfast forms. U-Pb zircon geochronology on the host metasediment indicates it was deposited between 437 ± 2 and 439 ± 3 Ma, but also indicates that an inferred basal conglomerate to this formation must be part of an older stratigraphic element, as it is cross-cut by a 546 ± 4 Ma pegmatite...
2016: PloS One
https://www.readbyqxmd.com/read/27779081/calixarene-a-versatile-material-for-drug-design-and-applications
#9
Muhammad Ajaz Hussain, Muhammad Umer Ashraf, Gulzar Muhammad, Muhammad Nawaz Tahir, Syed Nasir Abbas Bukhari
The review summarizes the efforts to fabricate inclusion complexes of different therapeutic agents based on a versatile material . is a macrocyclic nano-basket which is the marvelous host with distinct hydrophobic three dimensional cavities to entrap and encapsulate biologically active guest drugs. and its derivatives are used as carriers (host-guest) for anti-cancer, anti-convulsant, anti-hypertensive, anthelmentic, anti-inflammatory, antimicrobial and anti-psychotic drugs, etc. They are the important biocompatible materials to improve solubility and chemical reactivity, and decrease cytotoxicity of poorly soluble drugs...
September 28, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27771265/recent-developments-on-ultrasound-assisted-one-pot-multicomponent-synthesis-of-biologically-relevant-heterocycles
#10
Bubun Banerjee
Heterocycles are the backbone of organic compounds. Specially, N- &O-containing heterocycles represent privileged structural subunits well distributed in naturally occurring compounds with immense biological activities. Multicomponent reactions (MCRs) are becoming valuable tool for synthesizing structurally diverse molecular entities. On the other hand, the last decade has seen a tremendous outburst in modifying chemical processes to make them sustainable for the betterment of our environment. The application of ultrasound in organic synthesis is fulfilling some of the goals of 'green and sustainable chemistry' as it has some advantages over the traditional thermal methods in terms of reaction rates, yields, purity of the products, product selectivity, etc...
October 14, 2016: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/27768358/three-jet-production-in-electron-positron-collisions-at-next-to-next-to-leading-order-accuracy
#11
Vittorio Del Duca, Claude Duhr, Adam Kardos, Gábor Somogyi, Zoltán Trócsányi
We introduce a completely local subtraction method for fully differential predictions at next-to-next-to-leading order (NNLO) accuracy for jet cross sections and use it to compute event shapes in three-jet production in electron-positron collisions. We validate our method on two event shapes, thrust and C parameter, which are already known in the literature at NNLO accuracy and compute for the first time oblateness and the energy-energy correlation at the same accuracy.
October 7, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27756560/-thrust-into-adulthood-transition-experiences-of-young-adults-with-cerebral-palsy
#12
Nancy Bagatell, Dara Chan, Kimberly Karrat Rauch, Deborah Thorpe
BACKGROUND: The transition to adulthood, the gradual change in roles and responsibilities, is identified as a challenging time for adolescents and young adults with physical disabilities, including those with cerebral palsy. Health care, education, employment, independent living, and community engagement have been identified as areas of concern. However, relatively little research has been done to understand the experiences, perceptions, and needs of individuals with cerebral palsy as they transition toward adulthood...
October 3, 2016: Disability and Health Journal
https://www.readbyqxmd.com/read/27745052/how-to-manage-a-choking-adult
#13
Elizabeth Simpson
Rationale and key points Choking, or foreign body airway obstruction, is a common, yet treatable, cause of accidental death. This article aims to provide an overview of the skills required when faced with this emergency in adults, including how to recognise this emergency, the immediate management and treatment required, and the necessary aftercare. » Choking usually occurs when a person is eating or drinking. » An obstruction may classified as mild or severe. » For a severe obstruction in a conscious person, it may be necessary to administer back blows and/or abdominal thrusts to remove the obstruction from the airway...
September 14, 2016: Nursing Standard
https://www.readbyqxmd.com/read/27744006/varus-thrust-in-women-with-early-medial-knee-osteoarthritis-and-its-relation-with-the-external-knee-adduction-moment
#14
Armaghan Mahmoudian, Jaap H van Dieen, Sjoerd M Bruijn, Isabel Ac Baert, Gert S Faber, Frank P Luyten, Sabine Mp Verschueren
BACKGROUND: Varus thrust, defined as an abrupt increase of the knee varus angle during weight-bearing in gait, has been shown to be present in patients with moderate to severe knee osteoarthritis and is considered to be one of the risk factors for progression of symptomatic medial knee osteoarthritis. We evaluated the presence and magnitude of varus thrust and its relation with the Knee Adduction Moment in women with early medial knee osteoarthritis, and compared it to that in a group of controls and in a group of subjects with established medial knee osteoarthritis...
October 8, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27741108/guided-growth-for-tibia-vara-blount-s-disease
#15
John A Heflin, Scott Ford, Peter Stevens
Blount's disease is commonly attributed to an intrinsic, idiopathic defect in the posteromedial proximal tibial physis resulting in progressive bowing of the leg, intoeing, and lateral knee thrust. Treatment has historically included bracing, physeal stapling, or corrective osteotomy, and was determined primarily by age at presentation. As we feel the pathology is not necessarily age dependent, we have elected to use the technique of guided growth using a lateral tension band plate to correct limb alignment as a first-line treatment in all patients presenting to our clinic as long as they had growth remaining and no evidence of a physeal bar...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27728763/platinum-nanoparticle-decorated-sio2-microfibers-as-catalysts-for-micro-unmanned-underwater-vehicle-propulsion
#16
Bolin Chen, Nathaniel T Garland, Jason Geder, Marius Pruessner, Eric Mootz, Allison A Cargill, Anne Leners, Granit Vokshi, Jacob Davis, Wyatt Burns, Michael A Daniele, Joshua M Kogot, Igor L Medintz, Jonathan C Claussen
Micro unmanned underwater vehicles (UUVs) need to house propulsion mechanisms that are small in size but sufficiently powerful to deliver on-demand acceleration for tight radius turns, burst-driven docking maneuvers, and low-speed course corrections. Recently, small-scale hydrogen peroxide (H2O2) propulsion mechanisms have shown great promise in delivering pulsatile thrust for such acceleration needs. However, the need for robust, high surface area nanocatalysts that can be manufactured on a large scale for integration into micro UUV reaction chambers is still needed...
October 11, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27726747/unraveling-the-posterolateral-corner-of-the-knee
#17
Humberto G Rosas
Although rare, posterolateral corner (PLC) injuries can result in sustained instability and failed cruciate ligament reconstruction if they are not diagnosed. The anatomy of the PLC was once thought to be perplexing and esoteric-in part because of the varying nomenclature applied to this region in the literature, which added unnecessary complexity. More recently, three major structures have been described as the primary stabilizers of the PLC on the basis of biomechanical study findings: the lateral collateral ligament, popliteus tendon, and popliteofibular ligament...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27725733/shallow-slip-amplification-and-enhanced-tsunami-hazard-unravelled-by-dynamic-simulations-of-mega-thrust-earthquakes
#18
S Murphy, A Scala, A Herrero, S Lorito, G Festa, E Trasatti, R Tonini, F Romano, I Molinari, S Nielsen
The 2011 Tohoku earthquake produced an unexpected large amount of shallow slip greatly contributing to the ensuing tsunami. How frequent are such events? How can they be efficiently modelled for tsunami hazard? Stochastic slip models, which can be computed rapidly, are used to explore the natural slip variability; however, they generally do not deal specifically with shallow slip features. We study the systematic depth-dependence of slip along a thrust fault with a number of 2D dynamic simulations using stochastic shear stress distributions and a geometry based on the cross section of the Tohoku fault...
October 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27705056/in-vivo-kinematics-of-healthy-and-osteoarthritic-knees-during-stepping-using-density-based-image-matching-techniques
#19
Satoshi Hamai, Ken Okazaki, Satoru Ikebe, Koji Murakami, Hidehiko Higaki, Hiroyuki Nakahara, Takeshi Shimoto, Hideki Mizu-Uchi, Yukio Akasaki, Yukihide Iwamoto
The purpose of this study was to investigate in vivo kinematics in healthy and osteoarthritic (OA) knees during stepping using image-matching techniques. Six healthy volunteers and fourteen patients with medial OA knee before undergoing total knee arthroplasty performed stepping under periodic anteroposterior X-ray images. We analyzed the three-dimensional kinematic parameters of knee joints using X-ray images and CT-derived digitally reconstructed radiographs. The average extension/flexion angle ranged 6°/53° and 16°/44° in healthy and OA knees with significant difference in extension (p = ...
October 5, 2016: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/27697779/secondary-evolution-of-aquatic-propulsion-in-higher-vertebrates-validation-and-prospect
#20
Frank E Fish
Re-invasion of the aquatic environment by terrestrial vertebrates resulted in the evolution of species expressing a suite of adaptations for high-performance swimming. Examination of swimming by secondarily aquatic vertebrates provides opportunities to understand potential selection pressures and mechanical constraints, which may have directed the evolution of these aquatic species. Mammals and birds realigned the body and limbs for cursorial movements and flight, respectively, from the primitive tetrapod configuration...
October 3, 2016: Integrative and Comparative Biology
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