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https://www.readbyqxmd.com/read/28448470/auxiliary-truncated-unscented-kalman-filtering-for-bearings-only-maneuvering-target-tracking
#1
Liang-Qun Li, Xiao-Li Wang, Zong-Xiang Liu, Wei-Xin Xie
Novel auxiliary truncated unscented Kalman filtering (ATUKF) is proposed for bearings-only maneuvering target tracking in this paper. In the proposed algorithm, to deal with arbitrary changes in motion models, a modified prior probability density function (PDF) is derived based on some auxiliary target characteristics and current measurements. Then, the modified prior PDF is approximated as a Gaussian density by using the statistical linear regression (SLR) to estimate the mean and covariance. In order to track bearings-only maneuvering target, the posterior PDF is jointly estimated based on the prior probability density function and the modified prior probability density function, and a practical algorithm is developed...
April 27, 2017: Sensors
https://www.readbyqxmd.com/read/28439705/cementless-oxford-medial-unicompartimental-knee-replacement-an-independent-series-with-a-5-year-follow-up
#2
Benjamin Panzram, Ines Bertlich, Tobias Reiner, Tilman Walker, Sébastien Hagmann, Tobias Gotterbarm
PURPOSE: Cemented unicompartmental knee replacement (UKR) has proven excellent long-term survival rates and functional scores in Price et al. (Clin Orthop Relat Res 435:171-180, 2005), Price and Svard (Clin Orthop Relat Res 469(1):174-179, 2011) and Murray et al. (Bone Joint Surg Br 80(6):983-989, 1998). The main causes for revision, aseptic loosening and pain of unknown origin might be addressed by cementless UKR in Liddle et al. (Bone Joint J 95-B(2):181-187, 2013), Pandit et al. (J Bone Joint Surg Am 95(15):1365-1372, 2013), National Joint Registry for England, Wales and Northern Ireland: 10th Annual Report 2013 ( http://www...
April 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28433439/cardiac-amyloidosis-shows-decreased-diastolic-function-as-assessed-by-echocardiographic-parameterized-diastolic-filling
#3
Katrin Salman, Peter A Cain, Benjamin T Fitzgerald, Martin G Sundqvist, Martin Ugander
Cardiac amyloidosis is a rare but serious condition with poor survival. One of the early findings by echocardiography is impaired diastolic function, even before the development of cardiac symptoms. Early diagnosis is important, permitting initiation of treatment aimed at improving survival. The parameterized diastolic filling (PDF) formalism entails describing the left ventricular filling pattern during early diastole using the mathematical equation for the motion of a damped harmonic oscillator. We hypothesized that echocardiographic PDF analysis could detect differences in diastolic function between patients with amyloidosis and controls...
April 19, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28430154/circadian-rhythm-neuropeptides-in-drosophila-signals-for-normal-circadian-function-and-circadian-neurodegenerative-disease
#4
REVIEW
Qiankun He, Binbin Wu, Jeffrey L Price, Zhangwu Zhao
Circadian rhythm is a ubiquitous phenomenon in many organisms ranging from prokaryotes to eukaryotes. During more than four decades, the intrinsic and exogenous regulations of circadian rhythm have been studied. This review summarizes the core endogenous oscillation in Drosophila and then focuses on the neuropeptides, neurotransmitters and hormones that mediate its outputs and integration in Drosophila and the links between several of these (pigment dispersing factor (PDF) and insulin-like peptides) and neurodegenerative disease...
April 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28429013/a-stochastic-model-for-directional-changes-of-swimming-bacteria
#5
G Fier, D Hansmann, R C Buceta
In this work we introduce a stochastic model to describe directional changes in the movement of swimming bacteria. We use the probability density function (PDF) of turn angles, measured on tumbling wild-type E. coli, to build a Langevin equation for the deflection of the bacterial body swimming in isotropic media. We have solved this equation analytically by means of the Green function method and shown that three parameters are sufficient to describe the movement: the characteristic time, the steady-state solution and the control parameter...
April 21, 2017: Soft Matter
https://www.readbyqxmd.com/read/28426839/medical-history-in-the-hellenic-journal-of-nuclear-medicine
#6
EDITORIAL
Andreas Otte, Byeong Cheol Ahn
The Hellenic Journal of Nuclear Medicine is about to celebrate its 20th anniversary end of 2017. On board of the editorial team since 2003, this journal has influenced me like a good friend over the many past years. From time to time, the journal has published interesting and valuable historical notes. They show that nuclear medicine has a history and that medicine is its basis. They also teach us today, and some of the ancient perspectives and approaches are still valid. The reader of HJNM may be interested in these historical contributions, as they are timeless...
January 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28423853/square
#7
Carsten Oliver Schmidt, Christine Krabbe, Janka Schössow, Martin Albers, Dörte Radke, Jörg Henke
Valid scientific inferences from epidemiological and clinical studies require high data quality. Data generating departments therefore aim to detect data irregularities as early as possible in order to guide quality management processes. In addition, after the completion of data collections the obtained data quality must be evaluated. This can be challenging in complex studies due to a wide scope of examinations, numerous study variables, multiple examiners, devices, and examination centers. This paper describes a Java EE web application used to monitor and evaluate data quality in institutions with complex and multiple studies, named Square<sup>2</sup>...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28421693/the-health-and-social-effects-of-nonmedical-cannabis-use-wayne-hall-maria-renstr%C3%A3-m-vladimir-poznyak-eds-geneva-world-health-organization-2016-isbn-978-924-1510240-pdf-62-pp-available-free-online-at-http-www-who-int-substance_abuse-publications-cannabis-en
#8
https://www.readbyqxmd.com/read/28420275/beta-hebbian-learning-as-a-new-method-for-exploratory-projection-pursuit
#9
Héctor Quintián, Emilio Corchado
In this research, a novel family of learning rules called Beta Hebbian Learning (BHL) is thoroughly investigated to extract information from high-dimensional datasets by projecting the data onto low-dimensional (typically two dimensional) subspaces, improving the existing exploratory methods by providing a clear representation of data's internal structure. BHL applies a family of learning rules derived from the Probability Density Function (PDF) of the residual based on the beta distribution. This family of rules may be called Hebbian in that all use a simple multiplication of the output of the neural network with some function of the residuals after feedback...
March 16, 2017: International Journal of Neural Systems
https://www.readbyqxmd.com/read/28419668/prevalence-and-associated-variables-of-postdialysis-fatigue-results-of-a-prospective-multicenter-study
#10
Maurizio Bossola, Emanuele Marzetti, Enrico Di Stasio, Tania Monteburini, Stefano Cenerelli, Katia Mazzoli, Emanuele Parodi, Vittorio Sirolli, Stefano Santarelli, Fabio Ippoliti, Pier Eugenio Nebiolo, Mario Bonomini, Roberta Melatti, Carlo Vulpio
AIMS: Little is known about postdialysis fatigue (PDF), a debilitating symptom of hemodialysis patients. METHODS: In 5 hemodialysis units of northern-centre Italy, patients were regarded to suffer from PDF if they spontaneously offered this complaint when asked the open-ended question: Do you feel better or worse after dialysis? If worse, please specify in which way. A complaint of fatigue would be probed further with questions directed at its duration, frequency and intensity, allowing creation of a fatigue index of severity (one third of the sum of these three parameters, each rated from 1 to 5)...
April 17, 2017: Nephrology
https://www.readbyqxmd.com/read/28415280/mutually-avoiding-paths-in-random-media-and-largest-eigenvalues-of-random-matrices
#11
Andrea De Luca, Pierre Le Doussal
Recently, it was shown that the probability distribution function (PDF) of the free energy of a single continuum directed polymer (DP) in a random potential, equivalently to the height of a growing interface described by the Kardar-Parisi-Zhang (KPZ) equation, converges at large scale to the Tracy-Widom distribution. The latter describes the fluctuations of the largest eigenvalue of a random matrix, drawn from the Gaussian unitary ensemble (GUE), and the result holds for a DP with fixed end points, i.e., for the KPZ equation with droplet initial conditions...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28398267/hand-based-gesture-recognition-for-vehicular-applications-using-ir-uwb-radar
#12
Faheem Khan, Seong Kyu Leem, Sung Ho Cho
Modern cars continue to offer more and more functionalities due to which they need a growing number of commands. As the driver tries to monitor the road and the graphic user interface simultaneously, his/her overall efficiency is reduced. In order to reduce the visual attention necessary for monitoring, a gesture-based user interface is very important. In this paper, gesture recognition for a vehicle through impulse radio ultra-wideband (IR-UWB) radar is discussed. The gestures can be used to control different electronic devices inside a vehicle...
April 11, 2017: Sensors
https://www.readbyqxmd.com/read/28397829/local-structure-of-ion-pair-interaction-in-lapatinib-amorphous-dispersions-characterized-by-synchrotron-x-ray-diffraction-and-pair-distribution-function-analysis
#13
Gabriel L B de Araujo, Chris J Benmore, Stephen R Byrn
For many years, the idea of analyzing atom-atom contacts in amorphous drug-polymer systems has been of major interest, because this method has always had the potential to differentiate between amorphous systems with domains and amorphous systems which are molecular mixtures. In this study, local structure of ionic and noninonic interactions were studied by High-Energy X-ray Diffraction and Pair Distribution Function (PDF) analysis in amorphous solid dispersions of lapatinib in hypromellose phthalate (HPMCP) and hypromellose (HPMC-E3)...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28395655/sbpipe-a-collection-of-pipelines-for-automating-repetitive-simulation-and-analysis-tasks
#14
Piero Dalle Pezze, Nicolas Le Novère
BACKGROUND: The rapid growth of the number of mathematical models in Systems Biology fostered the development of many tools to simulate and analyse them. The reliability and precision of these tasks often depend on multiple repetitions and they can be optimised if executed as pipelines. In addition, new formal analyses can be performed on these repeat sequences, revealing important insights about the accuracy of model predictions. RESULTS: Here we introduce SBpipe, an open source software tool for automating repetitive tasks in model building and simulation...
April 10, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/28394949/polynomial-probability-distribution-estimation-using-the-method-of-moments
#15
Joakim Munkhammar, Lars Mattsson, Jesper Rydén
We suggest a procedure for estimating Nth degree polynomial approximations to unknown (or known) probability density functions (PDFs) based on N statistical moments from each distribution. The procedure is based on the method of moments and is setup algorithmically to aid applicability and to ensure rigor in use. In order to show applicability, polynomial PDF approximations are obtained for the distribution families Normal, Log-Normal, Weibull as well as for a bimodal Weibull distribution and a data set of anonymized household electricity use...
2017: PloS One
https://www.readbyqxmd.com/read/28389973/functional-capacity-evaluation-research-report-from-the-third-international-functional-capacity-evaluation-research-meeting
#16
M J A Edelaar, D P Gross, C L James, M F Reneman
Purpose Based on the success of the first two conferences the Third International FCE Research Conference was held in The Netherlands on September 29, 2016. The aim was to provide ongoing opportunity to share and recent FCE research and discuss its implications. Methods Invitations and call for abstracts were sent to previous attendees, researchers, practicing FCE clinicians and professionals. Fifteen abstracts were selected for presentation. The FCE research conference contained two keynote lectures. Results 54 participants from 12 countries attended the conference where 15 research projects and 2 keynote lectures were presented...
April 8, 2017: Journal of Occupational Rehabilitation
https://www.readbyqxmd.com/read/28383897/topological-transformation-of-a-metal-organic-framework-triggered-by-ligand-exchange
#17
Greco González Miera, Antonio Bermejo Gómez, Peter J Chupas, Belén Martín-Matute, Karena W Chapman, Ana E Platero-Prats
Here we describe the topological transformation of the pores of a new framework in the bio-MOF-100 family (dia-c) into the known isomer (lcs) by doubling the pore volume, which occurs during postsynthesis modifications. During this transformation, reassembling of the metal-organic framework (MOF) building blocks into a completely different framework occurs, involving breaking/forming of metal-ligand bonds. MOF crystallinity and local structure are retained, as determined by powder X-ray diffraction (PXRD) and pair distribution function (PDF) analyses, respectively...
April 6, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28383497/evo-seti-a-mathematical-tool-for-cladistics-evolution-and-seti
#18
Claudio Maccone
The discovery of new exoplanets makes us wonder where each new exoplanet stands along its way to develop life as we know it on Earth. Our Evo-SETI Theory is a mathematical way to face this problem. We describe cladistics and evolution by virtue of a few statistical equations based on lognormal probability density functions (pdf) in the time. We call b-lognormal a lognormal pdf starting at instant b (birth). Then, the lifetime of any living being becomes a suitable b-lognormal in the time. Next, our "Peak-Locus Theorem" translates cladistics: each species created by evolution is a b-lognormal whose peak lies on the exponentially growing number of living species...
April 6, 2017: Life
https://www.readbyqxmd.com/read/28382718/a-bivariate-contaminated-binormal-model-for-robust-fitting-of-proper-roc-curves-to-a-pair-of-correlated-possibly-degenerate-roc-datasets
#19
Xuetong Zhai, Dev P Chakraborty
PURPOSE: The objective was to design and implement a bivariate extension to the contaminated binormal model (CBM) to fit paired receiver operating characteristic (ROC) datasets -NDASH- possibly degenerate - with proper ROC curves. Paired datasets yield two correlated ratings per case. Degenerate datasets have no interior operating points and proper ROC curves do not inappropriately cross the chance diagonal. The existing method, developed more than 3 decades ago utilizes a bivariate extension to the binormal model, implemented in CORROC2 software, which yields improper ROC curves and cannot fit degenerate datasets...
April 6, 2017: Medical Physics
https://www.readbyqxmd.com/read/28381064/non-gaussian-statistics-and-optical-rogue-waves-in-stimulated-raman-scattering
#20
Yashar E Monfared, Sergey A Ponomarenko
We explore theoretically and numerically optical rogue wave formation in stimulated Raman scattering inside a hydrogen filled hollow core photonic crystal fiber. We assume a weak noisy Stokes pulse input and explicitly construct the input Stokes pulse ensemble using the coherent mode representation of optical coherence theory, thereby providing a link between optical coherence and rogue wave theories. We show that the Stokes pulse peak power probability distribution function (PDF) acquires a long tail in the limit of nearly incoherent input Stokes pulses...
March 20, 2017: Optics Express
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