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https://www.readbyqxmd.com/read/28068753/retrospective-matched-pair-cohort-study-on-effect-of-bisegmental-fenestration-versus-hemilaminectomy-for-bisegmental-spinal-canal-stenosis-at-l3-l4-and-l4-l5
#1
Julia Schüppel, Friedrich Weber
Background The main symptoms of degenerative lumbar spinal canal stenosis are progressive back pain, spinal claudication, and, occasionally, sensory and motor deficits. Impairments particularly occur during walking, standing, and sitting. Thus social and vocational activities are increasingly restricted, causing considerable suffering for patients. Surgical therapies are superior to conservative ones. This article studies the outcome of 2-level fenestration versus hemilaminectomy for bisegmental spinal stenosis decompression...
January 9, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28068368/a-virtual-out-of-body-experience-reduces-fear-of-death
#2
Pierre Bourdin, Itxaso Barberia, Ramon Oliva, Mel Slater
Immersive virtual reality can be used to visually substitute a person's real body by a life-sized virtual body (VB) that is seen from first person perspective. Using real-time motion capture the VB can be programmed to move synchronously with the real body (visuomotor synchrony), and also virtual objects seen to strike the VB can be felt through corresponding vibrotactile stimulation on the actual body (visuotactile synchrony). This setup typically gives rise to a strong perceptual illusion of ownership over the VB...
2017: PloS One
https://www.readbyqxmd.com/read/28059781/wing-kinematics-measurement-and-aerodynamics-of-a-dragonfly-in-turning-flight
#3
Chengyu Li, Haibo Dong
This study integrates high-speed photogrammetry, three-dimensional surface reconstruction, and computational fluid dynamics to explore a dragonfly (Erythemis Simplicicollis) in free flight. Asymmetric wing kinematics and the associated aerodynamic characteristics of a turning dragonfly are analyzed in detail. Quantitative measurements of wing kinematics show that compared to the outer wings, the inner wings sweep more slowly with a higher angle of attack during the downstroke, whereas they flap faster with a lower angle of attack during the upstroke...
January 6, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28058512/a-novel-approach-for-robotic-mobilization-of-the-splenic-flexure
#4
O Isik, C Benlice, E Gorgun
BACKGROUND: The techniques of robotic splenic flexure mobilization in the colorectal surgery setting are not well defined and have been challenging due to limited range of motion of the second-generation robotic platform in multiple quadrants. METHODS: This report describes a novel technique for robotic splenic flexure mobilization with medial-to-lateral approach without a need for robotic cart repositioning during left-sided colon and rectal surgery. The dissection is started with ligation of the inferior mesenteric artery and vein...
January 5, 2017: Techniques in Coloproctology
https://www.readbyqxmd.com/read/28046228/su-f-j-138-an-extension-of-pca-based-respiratory-deformation-modeling-via-multi-linear-decomposition
#5
A S Iliopoulos, N Pitsianis, X Sun, F F Yin, L Ren
PURPOSE: To address and lift the limited degree of freedom (DoF) of globally bilinear motion components such as those based on principal components analysis (PCA), for encoding and modeling volumetric deformation motion. METHODS: We provide a systematic approach to obtaining a multi-linear decomposition (MLD) and associated motion model from deformation vector field (DVF) data. We had previously introduced MLD for capturing multi-way relationships between DVF variables, without being restricted by the bilinear component format of PCA-based models...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28028619/effects-of-protein-carbohydrate-supplementation-on-immunity-and-resistance-training-outcomes-a-double-blind-randomized-controlled-clinical-trial
#6
Fernando Naclerio, Eneko Larumbe-Zabala, Nadia Ashrafi, Marco Seijo, Birthe Nielsen, Judith Allgrove, Conrad P Earnest
PURPOSE: To examine the impact of ingesting hydrolyzed beef protein, whey protein, and carbohydrate on resistance training outcomes, body composition, muscle thickness, blood indices of health and salivary human neutrophil peptides (HNP1-3), as reference of humoral immunity followed an 8-week resistance training program in college athletes. METHODS: Twenty-seven recreationally physically active males and females (n = 9 per treatment) were randomly assigned to one of the three groups: hydrolyzed beef protein, whey protein, or non-protein isoenergetic carbohydrate...
December 27, 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28027231/the-lipo-body-lift-a-new-circumferential-body-contouring-technique-useful-after-bariatric-surgery
#7
Nicolas Bertheuil, Benoit Chaput, Antoine De Runz, Paul Girard, Raphael Carloni, Eric Watier
BACKGROUND: After bariatric surgery, lifting of the lower body involves a contouring technique used to achieve optimal lower trunk reconstruction. The authors describe an innovative procedure applicable after massive weight loss: the lipo-body lift method. The authors describe their experience with this novel, safe procedure. METHODS: Twenty-five abdominal body-contouring reconstructions following massive weight loss were treated by means of circumferential lipo-body lift...
January 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28019677/chirality-specific-lift-forces-of-helix-under-shear-flows-helix-perpendicular-to-shear-plane
#8
Qi-Yi Zhang
Chiral objects in shear flow experience a chirality-specific lift force. Shear flows past helices in a low Reynolds number regime were studied using slender-body theory. The chirality-specific lift forces in the vorticity direction experienced by helices are dominated by a set of helix geometry parameters: helix radius, pitch length, number of turns, and helix phase angle. Its analytical formula is given. The chirality-specific forces are the physical reasons for the chiral separation of helices in shear flow...
December 26, 2016: Chirality
https://www.readbyqxmd.com/read/28010680/ergonomic-assessment-of-airport-shuttle-driver-tasks-using-an-ergonomic-analysis-toolset
#9
Erman Çakıt
This study aimed to i) evaluate strength requirements and lower back stresses during lifting and baggage handling task with 3D Static Strength Prediction Program (3DSSPP™) and ii) provide additional analyses using rapid entire body assessment (REBA) and NASA task load index (TLX) to assess the risks associated with the tasks. Four healthy female shuttle drivers of good health aged between 55 and 60 years were observed and interviewed in an effort to determine the tasks required of their occupations. The results indicated that lifting bags and placing them in a shuttle were high-risk for injury and possible changes should be further investiaged...
December 23, 2016: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/27995899/passive-mechanism-of-pitch-recoil-in-flapping-insect-wings
#10
D Ishihara, T Horie
The high torsional flexibility of insect wings allows for elastic recoil after the rotation of the wing during stroke reversal. However, the underlying mechanism of this recoil remains unclear because of the dynamic process of transitioning from the wing rotation during stroke reversal to the maintenance of a high angle of attack during the middle of each half-stroke, when the inertial, elastic, and aerodynamic effects all have a significant impact. Therefore, the interaction between the flapping wing and the surrounding air was directly simulated by simultaneously solving the incompressible Navier-Stokes equations, the equation of motion for an elastic body, and the fluid-structure interface conditions using the three-dimensional finite element method...
December 20, 2016: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/27982615/sharp-transition-in-the-lift-force-of-a-fluid-flowing-past-nonsymmetrical-obstacles-evidence-for-a-lift-crisis-in-the-drag-crisis-regime
#11
Patrick Bot, Marc Rabaud, Goulven Thomas, Alessandro Lombardi, Charles Lebret
Bluff bodies moving in a fluid experience a drag force which usually increases with velocity. However in a particular velocity range a drag crisis is observed, i.e., a sharp and strong decrease of the drag force. This counterintuitive result is well characterized for a sphere or a cylinder. Here we show that, for an object breaking the up-down symmetry, a lift crisis is observed simultaneously to the drag crisis. The term lift crisis refers to the fact that at constant incidence the time-averaged transverse force, which remains small or even negative at low velocity, transitions abruptly to large positive values above a critical flow velocity...
December 2, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27981928/comparison-of-direct-trocar-insertion-with-other-techniques-for-laparoscopy
#12
Muhammad Tariq, Raees Ahmed, Shafqat Rehman, Mudassar Sajjad
OBJECTIVE: To assess the safety of direct trocar insertion (DTI) before creating pneumoperitoneum in laparoscopic procedures. STUDY DESIGN: An observational study. PLACE AND DURATION OF STUDY: Combined Military Hospital (CMH) Kohat, Pakistan from November 2013 to January 2015. METHODOLOGY: All the cases undergoing laparoscopy at the study centre in the above duration were included in the study after approval from the Hospital Ethical Committee and informed written consent...
November 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27975003/efficacy-of-autologous-platelet-rich-plasma-glue-in-weight-loss-sequelae-surgery-and-breast-reduction-a-prospective-study
#13
Barbara Hersant, Mounia SidAhmed-Mezi, Simone Lapadula, Jeremy Niddam, Jonathan Bouhassira, Jean Paul Meningaud
BACKGROUND: Seroma and hematoma formations are the most common complications after plastic surgery. The aim of this study was to assess the efficacy of autologous platelet-rich plasma (A-PRP) glue to reduce postoperative wound complications and improve surgical outcomes. METHODS: Fifty-four patients were included in this study. They underwent breast reduction surgery, abdominoplasty, or limb lifting with A-PRP glue application on the entire surface of the subcutaneous tissue at the time of suture...
November 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27940180/the-lifestyle-intervention-for-the-treatment-of-diabetes-study-lift-diabetes-design-and-baseline-characteristics-for-a-randomized-translational-trial-to-improve-control-of-cardiovascular-disease-risk-factors
#14
Jeffrey A Katula, Julienne K Kirk, Carolyn F Pedley, Margaret R Savoca, Valery S Effoe, Ronny A Bell, Alain G Bertoni
The prevalence of type 2 diabetes continues to increase in minority and underserved patients, who are also more likely to have poorer control of diabetes and related risk factors for complications. Although the Look AHEAD trial has demonstrated improved risk factor control among overweight or obese diabetes patients who received an intensive lifestyle intervention, translating such findings into accessible programs is a major public health challenge. The purpose of this paper is to report the design and baseline characteristics of the Lifestyle Interventions for the Treatment of Diabetes study (LIFT Diabetes)...
December 7, 2016: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/27931923/assessing-the-sensitivity-of-european-surveillance-for-detecting-bse-in-cattle-according-to-international-standards
#15
Amie Adkin, Robin Simons, Mark Arnold
European surveillance for Bovine Spongiform Encephalopathy (BSE), initiated in 2001, has shown a steady exponential decline in the number of infected cattle, demonstrating that control measures have been effective. In 2016 23 European countries out of 28 demonstrated negligible risk status for the disease. The international standard setting body, the World Organization for Animal Health (OIE), prescribes that for countries where there is a non-negligible BSE risk, surveillance should allow the detection of one case per 100,000 in the adult cattle population with 95% confidence (Type A surveillance)...
December 1, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/27911597/evidence-based-psychosocial-treatments-for-pediatric-elimination-disorders
#16
Jaclyn A Shepard, Joseph E Poler, Jesse H Grabman
Pediatric elimination disorders are common in childhood, yet psychosocial correlates are generally unclear. Given the physiological concomitants of both enuresis and encopresis, and the fact that many children with elimination disorders are initially brought to their primary care physician for treatment, medical evaluation and management are crucial and may serve as the first-line treatment approach. Scientific investigation on psychological and behavioral interventions has progressed over the past couple of decades, resulting in the identification of effective treatments for enuresis and encopresis...
December 2, 2016: Journal of Clinical Child and Adolescent Psychology
https://www.readbyqxmd.com/read/27903629/bristles-reduce-the-force-required-to-fling-wings-apart-in-the-smallest-insects
#17
Shannon K Jones, Young J J Yun, Tyson L Hedrick, Boyce E Griffith, Laura A Miller
The smallest flying insects commonly possess wings with long bristles. Little quantitative information is available on the morphology of these bristles, and their functional importance remains a mystery. In this study, we (1) collected morphological data on the bristles of 23 species of Mymaridae by analyzing high-resolution photographs and (2) used the immersed boundary method to determine via numerical simulation whether bristled wings reduced the force required to fling the wings apart while still maintaining lift...
December 1, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27901126/low-level-light-treatment-ameliorates-immune-thrombocytopenia
#18
Jingke Yang, Qi Zhang, Peiyu Li, Tingting Dong, Mei X Wu
Immune thrombocytopenia (ITP) is an immune-mediated acquired bleeding disorder characterized by abnormally low platelet counts. We reported here the ability of low-level light treatment (LLLT) to alleviate ITP in mice. The treatment is based on noninvasive whole body illumination 30 min a day for a few consecutive days by near infrared light (830 nm) transmitted by an array of light-emitting diodes (LEDs). LLLT significantly lifted the nadir of platelet counts and restored tail bleeding time when applied to two passive ITP models induced by anti-CD41 antibody...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27898693/a-comparison-between-temperature-controlled-laminar-airflow-device-and-a-room-air-cleaner-in-reducing-exposure-to-particles-while-asleep
#19
Michal P Spilak, Torben Sigsgaard, Hisamitsu Takai, Guoqiang Zhang
People spend approximately one third of their life sleeping. Exposure to pollutants in the sleep environment often leads to a variety of adverse health effects, such as development and exacerbation of asthma. Avoiding exposure to these pollutants by providing a sufficient air quality in the sleep environment might be a feasible method to alleviate these health symptoms. We performed full-scale laboratory measurements using a thermal manikin positioned on an experimental bed. Three ventilation settings were tested: with no filtration system operated, use of portable air cleaner and use of a temperature-controlled laminar airflow (TLA) device...
2016: PloS One
https://www.readbyqxmd.com/read/27893476/comparison-of-muscle-involvement-and-posture-between-the-conventional-deadlift-and-a-walk-in-style-deadlift-machine
#20
Benjamin J Snyder, Courtney P Cauthen, Scott R Senger
The deadlift exercise is one of the most effective exercises for developing lower-body strength; however, technique errors can lead to low back injuries. The use of a 'walk-in' deadlift machine removes the weight bar by using a lever system with independent handles on either side of the body. Theoretically, this would allow alignment of the load with the center of gravity, encouraging a more upright torso and decreasing the involvement of the low back extensors. This study compared trunk angle, knee angle and electrical activity of key muscles between the conventional deadlift (CDL) and two foot positions (ball of foot or toe alignment) with pronated grip, (called BallPro and ToePro) of a walk-in deadlift machine among high-skilled and low-skilled lifters...
November 16, 2016: Journal of Strength and Conditioning Research
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