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https://www.readbyqxmd.com/read/29156435/more-than-a-to-b-understanding-and-managing-visitor-spatial-behaviour-in-urban-forests-using-public-participation-gis
#1
Silviya Korpilo, Tarmo Virtanen, Tiina Saukkonen, Susanna Lehvävirta
Planning and management needs up-to-date, easily-obtainable and accurate information on the spatial and social aspects of visitor behaviour in order to balance human use and impacts, and protection of natural resources in public parks. We used a web-based public participation GIS (PPGIS) approach to gather citizen data on visitor behaviour in Helsinki's Central Park in order to aid collaborative spatial decision-making. The study combined smartphone GPS tracking, route drawing and a questionnaire to examine differences between user groups in their use of formal trails, off-trail behaviour and the motivations that affect it...
November 17, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29153322/bats-use-path-integration-rather-than-acoustic-flow-to-assess-flight-distance-along-flyways
#2
Gal Aharon, Meshi Sadot, Yossi Yovel
Navigation can be achieved using different strategies from simple beaconing to complex map-based movement [1-4]. Bats display remarkable navigation capabilities, ranging from nightly commutes of several kilometers and up to seasonal migrations over thousands of kilometers [5]. Many bats have been suggested to fly along fixed routes termed "flyways," when flying from their roost to their foraging sites [6]. Flyways commonly stretch along linear landscape elements such as tree lines, hedges, or rivers [7]. When flying along a flyway, bats must estimate the distance they have traveled in order to determine when to turn...
November 9, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29152449/a-new-multiple-robot-path-planning-algorithm-dynamic-distributed-particle-swarm-optimization
#3
Asma Ayari, Sadok Bouamama
Multiple robot systems have become a major study concern in the field of robotic research. Their control becomes unreliable and even infeasible if the number of robots increases. In this paper, a new dynamic distributed particle swarm optimization (D(2)PSO) algorithm is proposed for trajectory path planning of multiple robots in order to find collision-free optimal path for each robot in the environment. The proposed approach consists in calculating two local optima detectors, LODpBest and LODgBest. Particles which are unable to improve their personal best and global best for predefined number of successive iterations would be replaced with restructured ones...
2017: Robotics and Biomimetics
https://www.readbyqxmd.com/read/29151295/-guidelines-for-standardizedmanagement-of-neutropenia-induced-by-chemotherapy-and-radiotherapy
#4
(no author information available yet)
Neutropenia is the most common hematologic toxicity of myelosuppressive chemotherapy and radiotherapy. The degree and duration of neutropenia are directly related to the risk of infection and even death, which can also affect the relative dose intensity of chemotherapy and the prognosis of patients. At present, clinicians tend to underestimate the harm of neutropenia, and are in lack of knowledge on granulocyte colony-stimulating factor(G-CSF), especially on prevention and treatment of neutropenia. Based on clinical evidence, the Chinese Society of Clinical Oncology (CSCO) develops guidelines on the assessment, prevention and treatment of neutropenia and the application of G-CSF...
November 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/29148136/effects-of-sensitive-electrical-stimulation-based-somatosensory-cueing-in-parkinson-s-disease-gait-and-freezing-of-gait-assessment
#5
Benoît Sijobert, Christine Azevedo, David Andreu, Claudia Verna, Christian Geny
This study aims to investigate the effect of a somatosensory cueing on gait disorders in subjects with Parkinson's disease (PD). After having performed stepping in place and timed up and go assessing tasks, 13 participants with PD were equipped with an electrical stimulator and an inertial measurement unit (IMU) located under the lateral malleolus on the sagittal plane. Electrodes were positioned under the arch of the foot and electrical stimulation (ES) parameters (five 500 µs/phase charge-balanced biphasic pulses delivered at 200 Hz, repeated four times at 10 Hz) adjusted to deliver a sensitive signal...
November 2017: Artificial Organs
https://www.readbyqxmd.com/read/29143250/cliques-and-cavities-in-the-human-connectome
#6
Ann E Sizemore, Chad Giusti, Ari Kahn, Jean M Vettel, Richard F Betzel, Danielle S Bassett
Encoding brain regions and their connections as a network of nodes and edges captures many of the possible paths along which information can be transmitted as humans process and perform complex behaviors. Because cognitive processes involve large, distributed networks of brain areas, principled examinations of multi-node routes within larger connection patterns can offer fundamental insights into the complexities of brain function. Here, we investigate both densely connected groups of nodes that could perform local computations as well as larger patterns of interactions that would allow for parallel processing...
November 16, 2017: Journal of Computational Neuroscience
https://www.readbyqxmd.com/read/29141416/perturbation-expansions-of-stochastic-wavefunctions-for-open-quantum-systems
#7
Yaling Ke, Yi Zhao
Based on the stochastic unravelling of the reduced density operator in the Feynman path integral formalism for an open quantum system in touch with harmonic environments, a new non-Markovian stochastic Schrödinger equation (NMSSE) has been established that allows for the systematic perturbation expansion in the system-bath coupling to arbitrary order. This NMSSE can be transformed in a facile manner into the other two NMSSEs, i.e., non-Markovian quantum state diffusion and time-dependent wavepacket diffusion method...
November 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29140253/electrical-resistivity-and-wave-character-of-free-electrons-in-amorphous-and-nanoglass-sc-sub-75-sub-fe-sub-25-sub
#8
Mohammad Ghafari, Wayne D Hutchison, Stewart J Campbell, Herbert Gleiter, Horst Hahn, Tao Feng
The residual electrical resistivity of metallic amorphous alloys, ρ0, is typically in the range 50 μΩ cm < ρ0 < 310 μΩ cm corresponding to a mean free path of conduction electrons of order a few interatomic distances. In crystalline metals with low defect levels such as Cu however, the residual electrical resistivity is about ρ0 ≈ 1.54 x 10-2 μΩ cm, leading to extensive progression of free electrons through the crystalline material, of typically up to 4 x 106 nm. The relatively "high" values for the electrical resistivity of distorted Sc75Fe25 alloys are discussed here within the framework of the wave character of electrons...
November 15, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29136586/generalised-two-dimensional-correlation-analysis-of-the-co-ce-and-pd-mixed-oxide-catalytic-systems-for-methane-combustion-using-in-situ-infrared-spectroscopy
#9
Damian K Chlebda, Przemysław J Jodłowski, Roman J Jędrzejczyk, Joanna Łojewska
The process of methane combustion over the surface of a catalyst is still not fully understood. The identification of the reaction path and the intermediates created during catalysis is crucial for understanding the transformation of methane molecules. Two-dimensional (2D) correlation spectroscopy was engaged as a tool for the quantitative analysis of a series of temperature-dependent infrared spectra registered in situ during methane combustion. The prepared samples of catalysts were based on a Co, Pd and Ce mixed oxide adsorbed on an aluminium oxide layer deposited on kanthal steel...
November 8, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29131167/analysis-and-elimination-of-bias-error-in-a-fiber-optic-current-sensor
#10
Xiaxiao Wang, Zijie Zhao, Chuansheng Li, Jia Yu, Zhenjie Wang
Bias error, along with scale factor, is a key factor that affects the measurement accuracy of the fiber-optic current sensor. Because of polarization crosstalk, the coherence of parasitic interference signals could be rebuilt and form an output independent of the current to be measured, i.e., the bias error. The bias error is a variable of the birefringence optical path difference. Hence, when the temperature changes, the bias error shows a quasi-periodical tendency whose envelope curve reflects the coherence function of light source...
November 10, 2017: Applied Optics
https://www.readbyqxmd.com/read/29125758/probing-the-impact-of-solvation-on-photoexcited-spin-crossover-complexes-with-high-precision-x-ray-transient-absorption-spectroscopy
#11
Cunming Liu, Jianxin Zhang, Latévi Max Lawson Daku, David J Gosztola, Sophie Canton, Xiaoyi Zhang
Investigating the photoinduced electronic and structural response of bistable molecular building blocks incorporating transition metals in solution phase constitutes a necessary stepping stone for steering their properties towards applications and perfomance optimizations. This work presents a detailed X-ray transient absorption (XTA) spectroscopy study of a prototypical spin crossover (SCO) complex [Fe(II)(mbpy)3](2+) (where mbpy=4,4'-dimethyl-2,2'-bipyridine) with a [Fe(II)N6] first coordination shell, in water (H2O) and acetonitrile (CH3CN)...
November 10, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29124369/exploring-the-regioselectivity-in-the-cycloaddition-of-azides-to-alkynes-catalyzed-by-dinuclear-copper-clusters-cu2aac-reaction-using-the-topologies-of-%C3%A2-2-%C3%AF-r-and-%C3%A2-%C3%A2-2-%C3%AF-r
#12
S Calvo-Losada, J J Quirante
The regioselectivity of the dinuclear-Cu(I)-catalyzed version of the Huisgen reaction, abbreviated in this paper to Cu2AAC, was analyzed using quantum topological methods in order to study how the electronic charge distribution evolved along different reaction paths. Electronic densities were computed at the LC-wPBE/6-311++G(2d,2p)//LC-wPBE/6-311++G(d,p) level. The presence of two copper ions in the catalyst was found to lead to an electrophilic site in the external alkyne carbon that, in a generalized Sharpless-type mechanism, undergoes an initial donor-acceptor interaction with the azide molecule, but with an inverted electrophile-nucleophile pattern when compared with the corresponding mononuclear process (CuAAC)...
November 9, 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/29123369/universal-proposal-strategies-of-anti-hpv-vaccination-for-adolescents-comparative-analysis-between-school-based-and-clinic-immunization-programs
#13
REVIEW
F Desiante, C Russo, A Giorgino, G Caputi, T Battista, R Cipriani, M Conversano
Introduction: A promising approach to increase teenager's adherence to immunization against HPV is the administration of vaccinations within the school facilities. The Local Health Unit of Taranto experienced two different vaccine strategy proposals in the twelve-year-olds: the first one was the usual active call strategy in the outpatient clinic, while the second one provided the involvement of the schools in the area. The aim of the study is to evaluate the results of the proposed vaccination strategies in both sexes and in towns of different sizes in order to identify an effective path for achieving vaccine coverage improvement...
September 2017: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/29123064/observation-of-mean-path-length-invariance-in-light-scattering-media
#14
Romolo Savo, Romain Pierrat, Ulysse Najar, Rémi Carminati, Stefan Rotter, Sylvain Gigan
The microstructure of a medium strongly influences how light propagates through it. The amount of disorder it contains determines whether the medium is transparent or opaque. Theory predicts that exciting such a medium homogeneously and isotropically makes some of its optical properties depend only on the medium's outer geometry. Here, we report an optical experiment demonstrating that the mean path length of light is invariant with respect to the microstructure of the medium it scatters through. Using colloidal solutions with varying concentration and particle size, the invariance of the mean path length is observed over nearly two orders of magnitude in scattering strength...
November 10, 2017: Science
https://www.readbyqxmd.com/read/29122180/associations-between-heat-exposure-vigilance-and-balance-performance-in-summer-tree-fruit-harvesters
#15
June T Spector, Jennifer Krenz, Miriam Calkins, Dawn Ryan, Jose Carmona, Mengjie Pan, Anna Zemke, Paul D Sampson
BACKGROUND: We sought to evaluate potential mediators of the relationship between heat exposure and traumatic injuries in outdoor agricultural workers. METHODS: Linear mixed models were used to estimate associations between maximum work-shift Wet Bulb Globe Temperature (WBGTmax) and post-shift vigilance (reaction time) and postural sway (total path length) in a cross-sectional sample of 46 Washington State tree fruit harvesters in August-September 2015. RESULTS: The mean (SD) WBGTmax was 27...
February 2018: Applied Ergonomics
https://www.readbyqxmd.com/read/29121404/the-association-of-british-neurologists-myasthenia-gravis-guidelines
#16
Jon Sussman, Maria E Farrugia, Paul Maddison, Marguerite Hill, M Isabel Leite, David Hilton-Jones
Myasthenia gravis (MG) is an autoimmune disease of the neuromuscular junction for which many therapies were developed before the era of evidence-based medicine. Despite the basic principles of treatment being well known, patients continue to receive suboptimal treatment. A myasthenia gravis guidelines group was therefore established under the aegis of the Association of British Neurologists. These guidelines attempt to steer a path between evidence-based practice where available and established best practice where evidence is unavailable...
November 9, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29114874/the-revolt-of-the-rust-belt-place-and-politics-in-the-age-of-anger
#17
Michael McQuarrie
This paper argues that the election of Donald Trump is the product of a confluence of historical factors rather than the distinctive appeal of the victor himself. By paying particular attention to the geography of unusual voting behaviour the analytical question comes into view: why did so much uncharacteristic voting occur in the Rust Belt states of the upper Midwest? It is impossible to answer this question adequately using conventional categorical attributes. The usual hypotheses of 'economic anxiety' and white revanchism are unable to account for sudden shifts in the voting behaviour of both white and black voters in post-industrial territories...
November 2017: British Journal of Sociology
https://www.readbyqxmd.com/read/29114217/bio-inspired-genetic-algorithms-with-formalized-crossover-operators-for-robotic-applications
#18
Jie Zhang, Man Kang, Xiaojuan Li, Geng-Yang Liu
Genetic algorithms are widely adopted to solve optimization problems in robotic applications. In such safety-critical systems, it is vitally important to formally prove the correctness when genetic algorithms are applied. This paper focuses on formal modeling of crossover operations that are one of most important operations in genetic algorithms. Specially, we for the first time formalize crossover operations with higher-order logic based on HOL4 that is easy to be deployed with its user-friendly programing environment...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/29113794/a-new-rat-compatible-robotic-framework-for-spatial-navigation-behavioral-experiments
#19
Sam Gianelli, Bruce Harland, Jean-Marc Fellous
BACKGROUND: Understanding the neural substrate of information encoding and processing requires a precise control of the animal's behavior. Most of what has been learned from the rodent navigational system results from relatively simple tasks in which the movements of the animal is controlled by corridors or walkways, passive movements, treadmills or virtual reality environments. While a lot has been and continues to be learned from these types of experiments, recent evidence has shown that such artificial constraints may have significant consequences on the functioning of the neural circuits of spatial navigation...
November 4, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29110738/what-can-we-learn-from-simulation-based-training-to-improve-skills-for-end-of-life-care-insights-from-a-national-project-in-israel
#20
Mayer Brezis, Yael Lahat, Meir Frankel, Alan Rubinov, Davina Bohm, Matan J Cohen, Meni Koslowsky, Orit Shalomson, Charles L Sprung, Henia Perry-Mezare, Rina Yahalom, Amitai Ziv
BACKGROUND: Simulation-based training improves residents' skills for end-of-life (EOL) care. In the field, staff providers play a significant role in handling those situations and in shaping practice by role modeling. We initiated an educational intervention to train healthcare providers for improved communication skills at EOL using simulation of sensitive encounters with patients and families. METHODS: Hospital physicians and nurses (n = 1324) attended simulation-based workshops (n = 100) in a national project to improve EOL care...
November 6, 2017: Israel Journal of Health Policy Research
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