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https://www.readbyqxmd.com/read/28809787/indoor-scene-point-cloud-registration-algorithm-based-on-rgb-d-camera-calibration
#1
Chi-Yi Tsai, Chih-Hung Huang
With the increasing popularity of RGB-depth (RGB-D) sensor, research on the use of RGB-D sensors to reconstruct three-dimensional (3D) indoor scenes has gained more and more attention. In this paper, an automatic point cloud registration algorithm is proposed to efficiently handle the task of 3D indoor scene reconstruction using pan-tilt platforms on a fixed position. The proposed algorithm aims to align multiple point clouds using extrinsic parameters of the RGB-D camera obtained from every preset pan-tilt control point...
August 15, 2017: Sensors
https://www.readbyqxmd.com/read/28809692/dense-visual-slam-with-probabilistic-surfel-map
#2
Zhixin Yan, Mao Ye, Liu Ren
Visual SLAM is one of the key technologies to align the virtual and real world together in Augmented Reality applications. RGBD dense Visual SLAM approaches have shown their advantages in robustness and accuracy in recent years. However, there are still several challenges such as the inconsistencies in RGBD measurements across multiple frames that could jeopardize the accuracy of both camera trajectory and scene reconstruction. In this paper, we propose a novel map representation called Probabilistic Surfel Map (PSM) for dense visual SLAM...
August 10, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28808852/patient-experience-with-the-patient-centered-medical-home-in-michigan-s-statewide-multi-payer-demonstration-a-cross-sectional-study
#3
Issidoros Sarinopoulos, Diane L Bechel-Marriott, Jean M Malouin, Shaohui Zhai, Jason C Forney, Clare L Tanner
BACKGROUND: The literature on patient-centered medical homes (PCMHs) and patient experience is somewhat mixed. Government and private payers are promoting multi-payer PCMH initiatives to align requirements and resources and to enhance practice transformation outcomes. To this end, the multipayer Michigan Primary Care Transformation (MiPCT) demonstration project was carried out. OBJECTIVE: To examine whether the PCMH is associated with a better patient experience, and whether a mature, multi-payer PCMH demonstration is associated with even further improvement in the patient experience...
August 14, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28795937/creating-a-social-media-assessment-tool-for-family-nursing
#4
Tracie Risling, Derek Risling, Lorraine Holtslander
The use of social media (SM) is contributing to an unprecedented state of global connectivity and occupying an increasingly prominent position in the lives of individuals and families. The more integrated these media become into society the more likely they are to play a role in overall health and family functioning, be it positively or negatively. Family systems theory provides an ideal lens through which to examine the effects of SM in today's family life. This article introduces a new SM assessment tool aligned with the principles of this foundational theory...
February 2017: Journal of Family Nursing
https://www.readbyqxmd.com/read/28791135/local-interactions-and-global-properties-of-wild-free-ranging-stickleback-shoals
#5
Ashley J W Ward, Timothy M Schaerf, James E Herbert-Read, Lesley Morrell, David J T Sumpter, Mike M Webster
Collective motion describes the global properties of moving groups of animals and the self-organized, coordinated patterns of individual behaviour that produce them. We examined the group-level patterns and local interactions between individuals in wild, free-ranging shoals of three-spine sticklebacks, Gasterosteus aculeatus. Our data reveal that the highest frequencies of near-neighbour encounters occur at between one and two body lengths from a focal fish, with the peak frequency alongside a focal individual...
July 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28780729/the-impact-of-myeloproliferative-neoplasms-mpns-on-patient-quality-of-life-and-productivity-results-from-the-international-mpn-landmark-survey
#6
Claire N Harrison, Steffen Koschmieder, Lynda Foltz, Paola Guglielmelli, Tina Flindt, Michael Koehler, Jonathan Mathias, Norio Komatsu, Robert N Boothroyd, Amber Spierer, Julian Perez Ronco, Gavin Taylor-Stokes, John Waller, Ruben A Mesa
Myelofibrosis (MF), polycythemia vera (PV), and essential thrombocythemia (ET) are myeloproliferative neoplasms (MPNs) associated with high disease burden, reduced quality of life (QOL), and shortened survival. To assess how MPNs affect patients, we conducted a global MPN Landmark survey. This online survey of patients with MPNs and physicians was conducted in Australia, Canada, Germany, Japan, Italy, and the United Kingdom. The survey measured MPN-related symptoms and the impact of MPNs on QOL and the ability to work as well as disease-management strategies...
August 5, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28770839/global-%C3%AE-hyperon-polarization-in-nuclear-collisions
#7
(no author information available yet)
The extreme energy densities generated by ultra-relativistic collisions between heavy atomic nuclei produce a state of matter that behaves surprisingly like a fluid, with exceptionally high temperature and low viscosity. Non-central collisions have angular momenta of the order of 1,000ћ, and the resulting fluid may have a strong vortical structure that must be understood to describe the fluid properly. The vortical structure is also of particular interest because the restoration of fundamental symmetries of quantum chromodynamics is expected to produce novel physical effects in the presence of strong vorticity...
August 2, 2017: Nature
https://www.readbyqxmd.com/read/28765797/radiographic-analysis-of-cervical-and-spinal-alignment-in-multilevel-acdf-with-lordotic-interbody-device
#8
Yoshihiro Katsuura, Alex Lemons, Eileen Lorenz, Rachel Swafford, James Osborn, Garrick Cason
BACKGROUND: Restoration and maintenance of cervical lordosis is an important clinical parameter in spine surgery. The purpose of this study was to determine the extent to which a multilevel anterior cervical discectomy and fusion (ACDF: greater than 3 levels) procedure restores cervical lordosis and the affect of increasing lordosis on sagittal vertical axis. METHODS: We performed a retrospective radiographic analysis of 69 patients who underwent multilevel ACDF by 2 surgeons between 2013 and 2014...
2017: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/28763731/natural-assurance-scheme-a-level-playing-field-framework-for-green-grey-infrastructure-development
#9
Benjamin Denjean, Mónica A Altamirano, Nina Graveline, Raffaele Giordano, Peter Van der Keur, David Moncoulon, Josh Weinberg, María Máñez Costa, Zdravko Kozinc, Mark Mulligan, Polona Pengal, John Matthews, Nora van Cauwenbergh, Elena López Gunn, David N Bresch
This paper proposes a conceptual framework to systematize the use of Nature-based solutions (NBS) by integrating their resilience potential into Natural Assurance Scheme (NAS), focusing on insurance value as corner stone for both awareness-raising and valuation. As such one of its core goal is to align research and pilot projects with infrastructure development constraints and priorities. Under NAS, the integrated contribution of natural infrastructure to Disaster Risk Reduction is valued in the context of an identified growing need for climate robust infrastructure...
July 29, 2017: Environmental Research
https://www.readbyqxmd.com/read/28762605/ensemblator-v3-robust-atom-level-comparative-analyses-and-classification-of-protein-structure-ensembles
#10
Andrew E Brereton, P Andrew Karplus
Ensembles of protein structures are increasingly used to represent the conformational variation of a protein as determined by experiment and/or by molecular simulations, as well as uncertainties that may be associated with structure determinations or predictions. Making the best use of such information requires the ability to quantitatively compare entire ensembles. For this reason, we recently introduced the Ensemblator (Clark et al. [2015] Protein Sci 24, 1528), a novel approach to compare user-defined groups of models, in residue level detail...
August 1, 2017: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/28761934/metabolic-fingerprints-from-the-human-oral-microbiome-reveal-a-vast-knowledge-gap-of-secreted-small-peptidic-molecules
#11
Anna Edlund, Neha Garg, Hosein Mohimani, Alexey Gurevich, Xuesong He, Wenyuan Shi, Pieter C Dorrestein, Jeffrey S McLean
Recent research indicates that the human microbiota play key roles in maintaining health by providing essential nutrients, providing immune education, and preventing pathogen expansion. Processes underlying the transition from a healthy human microbiome to a disease-associated microbiome are poorly understood, partially because of the potential influences from a wide diversity of bacterium-derived compounds that are illy defined. Here, we present the analysis of peptidic small molecules (SMs) secreted from bacteria and viewed from a temporal perspective...
July 2017: MSystems
https://www.readbyqxmd.com/read/28760626/how-do-the-brain-s-time-and-space-mediate-consciousness-and-its-different-dimensions-temporo-spatial-theory-of-consciousness-ttc
#12
REVIEW
Georg Northoff, Zirui Huang
Time and space are the basic building blocks of nature. As a unique existent in nature, our brain exists in time and takes up space. The brain's activity itself also constitutes and spreads in its own (intrinsic) time and space that is crucial for consciousness. Consciousness is a complex phenomenon including different dimensions: level/state, content/form, phenomenal aspects, and cognitive features. We propose a Temporo-spatial Theory of Consciousness (TTC) focusing primarily on the temporal and spatial features of the brain activity...
July 28, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28748648/accurate-template-based-modelling-in-casp12-using-the-intfold4-ts-modfold6-and-refold-methods
#13
Liam J McGuffin, Ahmad N Shuid, Robert Kempster, Ali H A Maghrabi, John O Nealon, Bajuna R Salehe, Jennifer D Atkins, Daniel B Roche
Our aim in CASP12 was to improve our Template Based Modelling (TBM) methods through better model selection, accuracy self-estimate (ASE) scores and refinement. To meet these aims we developed two new automated methods, which we used to score, rank and improve upon the provided server models. Firstly, the ModFOLD6_rank method, for improved global Quality Assessment (QA), model ranking and the detection of local errors. Secondly, the ReFOLD method for fixing errors through iterative QA guided refinement. For our automated predictions we developed the IntFOLD4-TS protocol, which integrates the ModFOLD6_rank method for scoring the multiple-template models that were generated using a number of alternative sequence-structure alignments...
July 27, 2017: Proteins
https://www.readbyqxmd.com/read/28744791/automatic-allograft-bone-selection-through-band-registration-and-its-application-to-distal-femur
#14
Yu Zhang, Lei Qiu, Fengzan Li, Qing Zhang, Li Zhang, Xiaohui Niu
Clinical reports suggest that large bone defects could be effectively restored by allograft bone transplantation, where allograft bone selection acts an important role. Besides, there is a huge demand for developing the automatic allograft bone selection methods, as the automatic methods could greatly improve the management efficiency of the large bone banks. Although several automatic methods have been presented to select the most suitable allograft bone from the massive allograft bone bank, these methods still suffer from inaccuracy...
July 25, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28742755/the-lumbar-pelvic-angle-lpa-the-lumbar-component-of-the-t1-pelvic-angle-correlates-with-hrqol-pi-ll-mismatch-and-it-predicts-global-alignment
#15
Themistocles S Protopsaltis, Renaud Lafage, Justin S Smith, Peter G Passias, Christopher I Shaffrey, Han Jo Kim, Gregory M Mundis, Christopher P Ames, Douglas C Burton, Shay Bess, Eric Klineberg, Robert A Hart, Frank J Schwab, Virginie Lafage
STUDY DESIGN: Prospective multicenter analysis of Adult Spinal Deformity (ASD) patients. OBJECTIVE: To introduce the lumbar pelvic angle (LPA), a novel parameter of spinopelvic alignment. SUMMARY OF BACKGROUND DATA: The T1 Pelvic angle (TPA), a measure of global spinopelvic alignment, correlates with HRQOL, but it may not be measureable on all intraoperative x-rays. In patients with prior interbody fusion at L5-S1, the plane of the S1 endplate can be blurred, creating error in PI-LL measure...
July 24, 2017: Spine
https://www.readbyqxmd.com/read/28742040/an-hp-adaptive-discretization-algorithm-for-signed-distance-field-generation
#16
Dan Koschier, Crispin Deul, Magnus Brand, Jan Bender
In this paper we present an hp-adaptive algorithm to generate discrete higher-order polynomial Signed Distance Fields (SDFs) on axis-aligned hexahedral grids from manifold polygonal input meshes. Using an orthonormal polynomial basis, we efficiently fit the polynomials to the underlying signed distance function on each cell. The proposed error-driven construction algorithm is globally adaptive and iteratively refines the SDFs using either spatial subdivision ( h-refinement) following an octree scheme or by cell-wise adaption of the polynomial approximation's degree ( p-refinement)...
July 21, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28729623/3d-qsar-studies-on-maslinic-acid-analogs-for-anticancer-activity-against-breast-cancer-cell-line-mcf-7
#17
Sarfaraz Alam, Feroz Khan
Global prevalence of breast cancer and its rising frequency makes it a key area of research in drug discovery programs. The research article describes the development of field based 3D-QSAR model based on human breast cancer cell line MCF7 in vitro anticancer activity, which defines the molecular level understanding and regions of structure-activity relationship for triterpene maslinic acid and its analogs. The key features such as average shape, hydrophobic regions and electrostatic patterns of active compounds were mined and mapped to virtually screen potential analogs...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28726744/future-protein-supply-and-demand-strategies-and-factors-influencing-a-sustainable-equilibrium
#18
REVIEW
Maeve Henchion, Maria Hayes, Anne Maria Mullen, Mark Fenelon, Brijesh Tiwari
A growing global population, combined with factors such as changing socio-demographics, will place increased pressure on the world's resources to provide not only more but also different types of food. Increased demand for animal-based protein in particular is expected to have a negative environmental impact, generating greenhouse gas emissions, requiring more water and more land. Addressing this "perfect storm" will necessitate more sustainable production of existing sources of protein as well as alternative sources for direct human consumption...
July 20, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28725975/supporting-sustainability-initiatives-through-biometeorology-education-and-training
#19
Michael J Allen, Jennifer Vanos, David M Hondula, Daniel J Vecellio, David Knight, Hamed Mehdipoor, Rebekah Lucas, Chris Fuhrmann, Hanna Lokys, Angela Lees, Sheila Tavares Nascimento, Andrew C W Leung, David R Perkins
The International Society of Biometeorology (ISB) has covered significant breadth and depth addressing fundamental and applied societal and environmental challenges in the last 60 years. Biometeorology is an interdisciplinary science connecting living organisms to their environment, but there is very little understanding of the existence and placement of this discipline within formal educational systems and institutions. It is thus difficult to project the ability of members of the biometeorological community-especially the biometeorologists of the future-to help solve global challenges...
July 19, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28717741/patient-reported-burden-of-a-neuroendocrine-tumor-net-diagnosis-results-from-the-first-global-survey-of-patients-with-nets
#20
Simron Singh, Dan Granberg, Edward Wolin, Richard Warner, Maia Sissons, Teodora Kolarova, Grace Goldstein, Marianne Pavel, Kjell Öberg, John Leyden
PURPOSE: Despite the considerable impact of neuroendocrine tumors (NETs) on patients' daily lives, the journey of the patient with a NET has rarely been documented, with published data to date being limited to small qualitative studies. NETs are heterogeneous malignancies with nonspecific symptomology, leading to extensive health care use and diagnostic delays that affect survival. A large, international patient survey was conducted to increase understanding of the experience of the patient with a NET and identify unmet needs, with the aim of improving disease awareness and care worldwide...
February 2017: Journal of Global Oncology
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