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https://www.readbyqxmd.com/read/28077906/how-to-improve-visibility-of-scientific-biomedical-sources
#1
REVIEW
Asim Kurjak
With the rapid development of information and communications technologies, industrial nations are transforming into societies in which knowledge is the most contested and valuable good. The increased speed at which we have to acquire new knowledge, insights, and abilities is forcing us to divide up learning into novel, shorter phases. The traditional choreography of learning with its long, rigid defined school, job, and university educational periods is already obsolete today. Self-organized, lifelong learning is becoming a must...
December 2016: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28073248/interplay-of-g-protein-coupled-receptors-with-the-membrane-insights-from-supra-atomic-coarse-grain-molecular-dynamics-simulations
#2
Xavier Periole
G protein-coupled receptors (GPCRs) are central to many fundamental cellular signaling pathways. They transduce signals from the outside to the inside of cells in physiological processes ranging from vision to immune response. It is extremely challenging to look at them individually using conventional experimental techniques. Recently, a pseudo atomistic molecular model has emerged as a valuable tool to access information on GPCRs, more specifically on their interactions with their environment in their native cell membrane and the consequences on their supramolecular organization...
January 11, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28069773/orbital-angular-momentum-of-photons-and-the-entanglement-of-laguerre-gaussian-modes
#3
REVIEW
Mario Krenn, Mehul Malik, Manuel Erhard, Anton Zeilinger
The identification of orbital angular momentum (OAM) as a fundamental property of a beam of light nearly 25 years ago has led to an extensive body of research around this topic. The possibility that single photons can carry OAM has made this degree of freedom an ideal candidate for the investigation of complex quantum phenomena and their applications. Research in this direction has ranged from experiments on complex forms of quantum entanglement to the interaction between light and quantum states of matter...
February 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28067860/3d-visual-tracking-of-an-articulated-robot-in-precision-automated-tasks
#4
Hamza Alzarok, Simon Fletcher, Andrew P Longstaff
The most compelling requirements for visual tracking systems are a high detection accuracy and an adequate processing speed. However, the combination between the two requirements in real world applications is very challenging due to the fact that more accurate tracking tasks often require longer processing times, while quicker responses for the tracking system are more prone to errors, therefore a trade-off between accuracy and speed, and vice versa is required. This paper aims to achieve the two requirements together by implementing an accurate and time efficient tracking system...
January 7, 2017: Sensors
https://www.readbyqxmd.com/read/28067851/detection-location-and-grasping-objects-using-a-stereo-sensor-on-uav-in-outdoor-environments
#5
Pablo Ramon Soria, Begoña C Arrue, Anibal Ollero
The article presents a vision system for the autonomous grasping of objects with Unmanned Aerial Vehicles (UAVs) in real time. Giving UAVs the capability to manipulate objects vastly extends their applications, as they are capable of accessing places that are difficult to reach or even unreachable for human beings. This work is focused on the grasping of known objects based on feature models. The system runs in an on-board computer on a UAV equipped with a stereo camera and a robotic arm. The algorithm learns a feature-based model in an offline stage, then it is used online for detection of the targeted object and estimation of its position...
January 7, 2017: Sensors
https://www.readbyqxmd.com/read/28064024/cognitive-profiles-of-adults-with-high-functioning-autism-spectrum-disorder-and-those-with-attention-deficit-hyperactivity-disorder-based-on-the-wais-iii
#6
Chieko Kanai, Ryuichiro Hashimoto, Takashi Itahashi, Masayuki Tani, Takashi Yamada, Haruhisa Ota, Akira Iwanami, Nobumasa Kato
The cognitive profile differences between adult patients with autism spectrum disorder (ASD) and those with attention-deficit/hyperactivity disorder (ADHD) are not well characterized. We examined the cognitive profiles of adults having either ASD (n=120) or ADHD (n=76) with no intellectual disabilities (IQ≥70) using the Wechsler Intelligence Scale III (WAIS-III). Verbal Intelligence (VIQ) - Performance Intelligence (PIQ) difference discrepancies were detected between the two groups. Information subtest scores of the Verbal Comprehension index and Arithmetic and Digit Span subtests of the Freedom from Distractibility index were significantly higher in ASD than in ADHD, while the Picture Completion subtest was significantly lower in ASD...
January 5, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28061779/a-motion-classification-strategy-based-on-semg-eeg-signal-combination-for-upper-limb-amputees
#7
Xiangxin Li, Oluwarotimi Williams Samuel, Xu Zhang, Hui Wang, Peng Fang, Guanglin Li
BACKGROUND: Most of the modern motorized prostheses are controlled with the surface electromyography (sEMG) recorded on the residual muscles of amputated limbs. However, the residual muscles are usually limited, especially after above-elbow amputations, which would not provide enough sEMG for the control of prostheses with multiple degrees of freedom. Signal fusion is a possible approach to solve the problem of insufficient control commands, where some non-EMG signals are combined with sEMG signals to provide sufficient information for motion intension decoding...
January 7, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28059292/generation-of-two-pairs-of-qudits-using-four-photons-and-a-single-degree-of-freedom
#8
P-L De Assis, M A D Carvalho, L P Berruezo, J Ferraz, S Pádua
Qudits, d-level quantum systems, have been shown to provide a better resource for quantum key distribution and other Quantum Information protocols. It is customary to generate photonic qudits using more than one degree of freedom of the same photon. In much the same way, multi-qubit states are generated using only a pair of photons and ingenious ways to manipulate more than one degree of freedom independently. In contrast to such costly implementations in terms of quantum resources, we present the controlled generation of two copies of two-qudit states using four photons and a single degree of freedom, transverse momentum...
December 26, 2016: Optics Express
https://www.readbyqxmd.com/read/28055074/surgical-treatment-of-nonlesional-neocortical-epilepsy-long-term-longitudinal-study
#9
Dong Wook Kim, Sang Kun Lee, Hye-Jin Moon, Ki-Young Jung, Kon Chu, Chun-Ki Chung
Importance: The proportion of surgery for nonlesional neocortical epilepsy has recently increased, with a decrease in surgery for mesial temporal lobe epilepsy. However, there are only a few studies regarding the long-term surgical outcome and the potential prognostic factors for patients with nonlesional neocortical epilepsy. Objective: To evaluate the long-term surgical outcome and to identify possible prognostic factors in patients with nonlesional neocortical epilepsy...
January 3, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28052482/an-extra-care-community-s-perceived-priorities-for-whole-system-relationships-a-q-methodological-study
#10
Paul Grimshaw, Linda McGowan, Elaine McNichol
Health and social care settings worldwide need to sustainably improve the quality of relationships across communities or 'whole systems'. This research informs the development of a relational framework based on stakeholder perspectives. It is grounded in an action research project with practitioners, and draws on a previous literature review, to present the underpinning elements of quality relationships as statements, organised under the headings of integrity, respect, fairness, compassion and trust. Using Q methodology, 27 participants, comprising a range of stakeholders (staff, residents, family and service providers), rank-ordered 48 statements based on perceptions of the importance of differing aspects of relationships...
January 3, 2017: Health & Social Care in the Community
https://www.readbyqxmd.com/read/28048707/mo-fg-campus-jep1-05-water-equivalent-path-length-calculations-using-scatter-corrected-head-and-neck-cbct-images-to-evaluate-patients-for-adaptive-proton-therapy
#11
J Kim, Y Park, G Sharp, B Winey
PURPOSE: To establish a method to evaluate the dosimetric impact of anatomic changes in head and neck patients during proton therapy by using scatter-corrected cone-beam CT (CBCT) images. METHODS: The water equivalent path length (WEPL) was calculated to the distal edge of PTV contours by using tomographic images available for six head and neck patients received photon therapy. The proton range variation was measured by calculating the difference between the distal WEPLs calculated with the planning CT and weekly treatment CBCT images...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28043438/surgical-experience-and-long-term-results-of-baroreflex-activation-therapy-for-heart-failure-with-reduced-ejection-fraction
#12
Fred A Weaver, William T Abraham, William C Little, Christian Butter, Anique Ducharme, Marcel Halbach, Didier Klug, Eric G Lovett, Navid Madershahian, Jochen Müller-Ehmsen, Jill E Schafer, Michele Senni, Vijay Swarup, Rolf Wachter, Michael R Zile
The purpose of this publication is to describe the intraoperative experience along with long-term safety and efficacy of the second-generation baroreflex activation therapy (BAT) system in patients with heart failure (HF) and reduced ejection fraction HF (HFrEF). In a randomized trial of New York Heart Association Class III HFrEF, 140 patients were assigned 1:1 to receive BAT plus medical therapy or medical therapy alone. Procedural information along with safety and efficacy data were collected and analyzed over 12 months...
July 2016: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28042966/computed-binding-of-peptides-to-proteins-with-meld-accelerated-molecular-dynamics
#13
Joseph A Morrone, Alberto Perez, Justin L MacCallum, Ken A Dill
It has been a challenge to compute the binding poses and affinities of peptides to proteins by molecular dynamics (MD) simulation. Such computations would be valuable for capturing the physics and the conformational freedom of the molecules, but are currently too computationally expensive. Here we describe using MELD-accelerated MD for finding the binding poses and approximate relative binding free energies for flexible-peptide / protein interactions. MELD uses only weak information about the binding motif and not the detailed binding mode that is typically required by other free-energy-based methods...
January 2, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28027171/measurement-of-distraction-force-in-cleft-lip-and-palate-patients-during-le-fort-i-maxillary-advancement-with-rigid-external-distraction
#14
Hiromi Sawada, Takuya Ogawa, Keiichi Kataoka, Yoshiyuki Baba, Keiji Moriyama
OBJECTIVE: Maxillary distraction osteogenesis (DO) is a mainstream surgical technique for patients who have severe maxillary hypoplasia associated with craniofacial syndromes and cleft-related deformities. However, limited information about the biomechanical aspects of maxillary DO is available limiting broad utilization and improvements to the procedure. The objective of this study was to analyze force levels during the active distraction process and to investigate the relationship between distraction force and maxillary movement during Le Fort I maxillary DO using a rigid external distraction (RED) system...
December 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28025524/a-multi-sensor-fusion-mav-state-estimation-from-long-range-stereo-imu-gps-and-barometric-sensors
#15
Yu Song, Stephen Nuske, Sebastian Scherer
State estimation is the most critical capability for MAV (Micro-Aerial Vehicle) localization, autonomous obstacle avoidance, robust flight control and 3D environmental mapping. There are three main challenges for MAV state estimation: (1) it can deal with aggressive 6 DOF (Degree Of Freedom) motion; (2) it should be robust to intermittent GPS (Global Positioning System) (even GPS-denied) situations; (3) it should work well both for low- and high-altitude flight. In this paper, we present a state estimation technique by fusing long-range stereo visual odometry, GPS, barometric and IMU (Inertial Measurement Unit) measurements...
December 22, 2016: Sensors
https://www.readbyqxmd.com/read/28009191/experimental-rectification-of-entropy-production-by-maxwell-s-demon-in-a-quantum-system
#16
Patrice A Camati, John P S Peterson, Tiago B Batalhão, Kaonan Micadei, Alexandre M Souza, Roberto S Sarthour, Ivan S Oliveira, Roberto M Serra
Maxwell's demon explores the role of information in physical processes. Employing information about microscopic degrees of freedom, this "intelligent observer" is capable of compensating entropy production (or extracting work), apparently challenging the second law of thermodynamics. In a modern standpoint, it is regarded as a feedback control mechanism and the limits of thermodynamics are recast incorporating information-to-energy conversion. We derive a trade-off relation between information-theoretic quantities empowering the design of an efficient Maxwell's demon in a quantum system...
December 9, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/28008880/brillouin-light-scattering-studies-of-2d-magnonic-crystals
#17
S Tacchi, G Gubbiotti, M Madami, G Carlotti
Magnonic crystals, materials with periodic modulation of their magnetic properties, represent the magnetic counterpart of photonic, phononic and plasmonic crystals, and have been largely investigated in recent years because of the possibility of using spin waves as a new means for carrying and processing information over a very large frequency bandwidth. Here, we review recent Brillouin light scattering studies of 2D magnonic crystals consisting of single- and bi-component arrays of interacting magnetic dots or antidot lattices...
February 22, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28003860/model-diagnostics-in-reduced-rank-estimation
#18
Kun Chen
Reduced-rank methods are very popular in high-dimensional multivariate analysis for conducting simultaneous dimension reduction and model estimation. However, the commonly-used reduced-rank methods are not robust, as the underlying reduced-rank structure can be easily distorted by only a few data outliers. Anomalies are bound to exist in big data problems, and in some applications they themselves could be of the primary interest. While naive residual analysis is often inadequate for outlier detection due to potential masking and swamping, robust reduced-rank estimation approaches could be computationally demanding...
2016: Statistics and its Interface
https://www.readbyqxmd.com/read/27990475/evolving-data-access-policy-the-canadian-context
#19
Stephanie O M Dyke, Katie M Saulnier, Tomi Pastinen, Guillaume Bourque, Yann Joly
In setting up a data access policy to share controlled access data from the McGill Epigenomics Mapping Centre (EMC), an International Human Epigenome Consortium (IHEC) partner project, we encountered ethical and legal challenges that are likely to be relevant to other researchers sharing data, especially from Canadian projects. We discuss our solutions to the following data-sharing challenges, based on comparative legal and policy analysis: (1) providing access to data to a growing number of researchers; (2) maintaining Canadian privacy standards while sharing controlled access data internationally; (3) freedom of information requests; and (4) providing more incentives for researchers to share pre-publication data...
September 15, 2016: Facets (Ott)
https://www.readbyqxmd.com/read/27982088/concepts-of-ferrovalley-material-and-anomalous-valley-hall-effect
#20
Wen-Yi Tong, Shi-Jing Gong, Xiangang Wan, Chun-Gang Duan
Valleytronics rooted in the valley degree of freedom is of both theoretical and technological importance as it offers additional opportunities for information storage, as well as electronic, magnetic and optical switches. In analogy to ferroelectric materials with spontaneous charge polarization, or ferromagnetic materials with spontaneous spin polarization, here we introduce a new member of ferroic family, that is, a ferrovalley material with spontaneous valley polarization. Combining a two-band k·p model with first-principles calculations, we show that 2H-VSe2 monolayer, where the spin-orbit coupling coexists with the intrinsic exchange interaction of transition-metal d electrons, is such a room-temperature ferrovalley material...
December 16, 2016: Nature Communications
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