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https://www.readbyqxmd.com/read/28212456/influence-of-posterior-mandibular-dimensions-on-alveolar-bone-microarchitecture
#1
Alberto Monje, Yiqun Wu, Wei Huang, Wenjie Zhou, Pablo Galindo-Moreno, Jesus Montanero-Fernandez, Rachel A Sheridan, Hom-Lay Wang, Feng Wang
PURPOSE: The aim of this study was to investigate the influence of posterior mandibular dimensions (height and width at various levels) on alveolar bone microarchitecture using microcomputed tomography (micro-CT). MATERIALS AND METHODS: Partially edentulous subjects with one missing molar were included in the study. A bone core biopsy was performed at the site of planned implant surgery. For each patient, alveolar morphologic and architectural characteristics were analyzed using cone beam computed tomography (CBCT) and micro-CT imaging...
February 17, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28212174/categorizing-and-assessing-negative-symptoms
#2
Paola Bucci, Silvana Galderisi
PURPOSE OF REVIEW: To provide a review on studies published in the last year relevant to the categorization and assessment of negative symptoms. RECENT FINDINGS: Recent research supported the validity of the 'deficit/non-deficit schizophrenia' categorization. Few studies confirmed the validity of the category 'persistent negative symptoms', whereas no recent study explored the validity of the category 'predominant negative symptoms'. The two-factor structure of the negative dimension is supported by studies reporting different correlates for the two subdomains: diminished expression and avolition/apathy...
February 15, 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/28212142/honoring-motherhood-the-meaning-of-childbirth-for-tongan-women
#3
Shelly J Reed, Lynn Clark Callister, ʼAna Kavaefiafi, Cheryl Corbett, Debra Edmunds
PURPOSE: The purpose of this ethnographic study was to describe the meaning of childbirth for Tongan women. STUDY DESIGN AND METHODS: In this qualitative descriptive study, 38 Tongan women, 18 from Tonga and 20 from the United States, who had given birth in the past year were invited to share their perceptions of childbirth. Themes were generated collaboratively by the research team. FINDINGS: The overarching theme was honoring motherhood, with other themes including using strength to facilitate an unmedicated vaginal birth, describing the spiritual dimensions of birth, adhering to cultural practices associated with childbearing, and the influence of the concept of respect on childbearing...
February 16, 2017: MCN. the American Journal of Maternal Child Nursing
https://www.readbyqxmd.com/read/28212059/pediatric-chest-ct-diagnostic-reference-ranges-development-and-application
#4
Keith J Strauss, Marilyn J Goske, Alexander J Towbin, Debapriya Sengupta, Michael J Callahan, Kassa Darge, Daniel J Podberesky, Donald P Frush, Charles Maxfield, Sjirk J Westra, Jeffrey S Prince, Huimin Wu, Mythreyi Bhargavan-Chatfield
Purpose To determine diagnostic reference ranges on the basis of the size of a pediatric patient's chest and to develop a method to estimate computed tomographic (CT) scanner-specific mean size-specific dose estimates (SSDEs) as a function of patient size and the radiation output of each CT scanner at a site. Materials and Methods The institutional review boards of each center approved this retrospective, HIPAA-compliant, multicenter study; informed consent was waived. CT dose indexes (SSDE, volume CT dose index, and dose length product) of 518 pediatric patients (mean age, 9...
February 17, 2017: Radiology
https://www.readbyqxmd.com/read/28211833/an-anthropometric-study-of-serbian-metal-industry-workers
#5
S Omić, V K Spasojevic Brkić, T A Golubović, A Dj Brkić, M M Klarin
BACKGROUND: There are recent studies using new industrial workers' anthropometric data in different countries, but for Serbia such data are not available. OBJECTIVE: This study is the first anthropometric study of Serbian metal industry workers in the country, whose labor force is increasingly employed both on local and international markets. The metal industry is one of Serbia's most important economic sectors. METHODS: To this end, we collected the basic static anthropometric dimensions of 122 industrial workers and used principal components analysis (PCA) to obtain multivariate anthropometric models...
February 17, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28211794/test-retest-reliability-of-muscle-fiber-conduction-velocity-and-fractal-dimension-of-surface-emg-during-isometric-contractions
#6
Matteo Beretta-Piccoli, Giuseppe D'Antona, Cristian Zampella, Marco Barbero, Ron Clijsen, Corrado Cescon
The aim of this study was to determine the test-retest reliability of muscle fiber conduction velocity (CV) and fractal dimension (FD) obtained from multichannel surface electromyographic (sEMG) recordings. Forty healthy recreationally active subjects (20 men and 20 women) performed two elbow flexions on two trials with a 1-week interval. The first was a 20% maximal voluntary contraction (MVC) of 120 s, and the second at 60% MVC held until exhaustion. sEMG signals were detected from the biceps brachii, using bi-dimensional arrays...
February 17, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28211741/enhanced-crystal-growth-in-binary-lennard-jones-mixtures
#7
M Radu, K Kremer
We study the crystal growth in binary Lennard-Jones mixtures by molecular dynamics simulations. Growth dynamics, the structure of the liquid-solid interfaces as well as droplet incorporation into the crystal vary with solution properties. For demixed systems we observe a strongly enhanced crystal growth at the cost of enclosed impurities. Furthermore, we find different interface morphologies depending on solubility. We relate our observations to growth mechanisms based on the Gibbs-Thomson effect as well as to predictions of the Kardar-Parisi-Zhang theory in 2+1 dimensions...
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28211736/short-time-behavior-and-criticality-of-driven-lattice-gases
#8
Urna Basu, Valerio Volpati, Sergio Caracciolo, Andrea Gambassi
The nonequilibrium short-time critical behaviors of driven and undriven lattice gases are investigated via Monte Carlo simulations in two spatial dimensions starting from a fully disordered initial configuration. In particular, we study the time evolution of suitably defined order parameters, which account for the strong anisotropy introduced by the homogeneous drive. We demonstrate that, at short times, the dynamics of all these models is unexpectedly described by an effective continuum theory in which transverse fluctuations, i...
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28211734/positivity-of-curvature-squared-corrections-in-gravity
#9
Clifford Cheung, Grant N Remmen
We study the Gauss-Bonnet (GB) term as the leading higher-curvature correction to pure Einstein gravity. Assuming a tree-level ultraviolet completion free of ghosts or tachyons, we prove that the GB term has a nonnegative coefficient in dimensions greater than 4. Our result follows from unitarity of the spectral representation for a general ultraviolet completion of the GB term.
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28211720/dynamical-response-near-quantum-critical-points
#10
Andrew Lucas, Snir Gazit, Daniel Podolsky, William Witczak-Krempa
We study high-frequency response functions, notably the optical conductivity, in the vicinity of quantum critical points (QCPs) by allowing for both detuning from the critical coupling and finite temperature. We consider general dimensions and dynamical exponents. This leads to a unified understanding of sum rules. In systems with emergent Lorentz invariance, powerful methods from quantum field theory allow us to fix the high-frequency response in terms of universal coefficients. We test our predictions analytically in the large-N O(N) model and using the gauge-gravity duality and numerically via quantum Monte Carlo simulations on a lattice model hosting the interacting superfluid-insulator QCP...
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28211711/impact-of-laser-beam-speckle-structure-on-crossed-beam-energy-transfer-via-beam-deflections-and-ponderomotive-self-focusing
#11
G Raj, S Hüller
The role of laser speckle structure (hot spots) and its ponderomotive self-focusing (PSF), in crossed beam energy transfer (CBET), of smoothed laser beams is investigated in an inhomogeneous expanding plasma. Numerical simulations using the code harmony in two spatial dimensions, demonstrate how self-focusing of laser hot spots in crossed beams can significantly affect the transfer of energy from one beam to the other in addition to the stimulated Brillouin scattering (SBS) process. It is shown that for sufficiently intense laser beams, when the laser hot spots exceed the criterion for self-focusing in a plasma with flow, the angular spread of transmitted light beams increases considerably with the intensity, which arises in particular, in expanding plasma where significant beam deflection is observed...
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28211553/the-assessment-of-schizotypy-by-the-o-life-oxford-liverpool-inventory-for-feelings-and-experiences-in-patients-with-schizophrenia-and-affective-disorders
#12
Daria Dembińska-Krajewska, Janusz Rybakowski
OBJECTIVES: The aim of the study was to assess schizotypy by using the Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE), in the groups of patients with schizophrenia, bipolar disorder (BD) and unipolar (recurrent) depression (UD). An important element of the study was to compare - in terms of similarity - the results obtained in schizophrenia and BD, and - in terms of differences - the results obtained in BD and UD. METHODS: The study involved 58 patients with schizophrenia (35 men, 23 women, mean age = 34...
December 23, 2016: Psychiatria Polska
https://www.readbyqxmd.com/read/28211270/uniform-patchy-platelets-by-seeded-heteroepitaxial-growth-of-crystallizable-polymer-blends-in-two-dimensions
#13
Ali Nazemi, Xiaoming He, Liam R MacFarlane, Robert L Harniman, Ming-Siao Hsiao, Mitchell A Winnik, Charl F J Faul, Ian Manners
Rectangular platelets formed by the self-assembly of block copolymers in selective solvents are of interest for a range of applications. Recently we showed that the seeded growth of crystallizable blends of a block copolymer and homopolymer yields well-defined, low dispersity examples of these two-dimensional (2D) structures. The key feature was the use of the same crystallizable polymer segment in the seed and blend components to enable an efficient homoepitaxial growth process. Herein we demonstrate that this 2D crystallization-driven self-assembly approach can be extended to heteropitaxial growth by the use of different crystallizable polymers with compatible crystal structures...
February 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28210990/indices-from-lagged-poincare-plots-of-heart-rate-variability-an-efficient-nonlinear-tool-for-emotion-discrimination
#14
Ateke Goshvarpour, Ataollah Abbasi, Atefeh Goshvarpour
Interest in human emotion recognition, regarding physiological signals, has recently risen. In this study, an efficient emotion recognition system, based on geometrical analysis of autonomic nervous system signals, is presented. The electrocardiogram recordings of 47 college students were obtained during rest condition and affective visual stimuli. Pictures with four emotional contents, including happiness, peacefulness, sadness, and fear were selected. Then, ten lags of Poincare plot were constructed for heart rate variability (HRV) segments...
February 16, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28210923/investigating-adolescents-critical-consciousness-development-through-a-character-framework
#15
Scott Seider, Jalene Tamerat, Shelby Clark, Madora Soutter
Brazilian philosopher-educator Paulo Freire defined critical consciousness as the ability to engage in reflection and action upon the world in order to transform it. A growing body of research has found that critical consciousness is predictive of a number of important academic and civic outcomes in adolescents from oppressed groups. The present mixed methods study considered the critical consciousness development of 335 adolescents (57% female, 92% African American or Latinx) attending urban secondary schools that sought to foster their students' critical consciousness, but featured five different pedagogical approaches...
February 16, 2017: Journal of Youth and Adolescence
https://www.readbyqxmd.com/read/28210890/toward-a-holistic-environmental-impact-assessment-of-marble-quarrying-and-processing-proposal-of-a-novel-easy-to-use-ipat-based-method
#16
Cinzia Capitano, Giorgia Peri, Gianfranco Rizzo, Patrizia Ferrante
Marble is a natural dimension stone that is widely used in building due to its resistance and esthetic qualities. Unfortunately, some concerns have arisen regarding its production process because quarrying and processing activities demand significant amounts of energy and greatly affect the environment. Further, performing an environmental analysis of a production process such as that of marble requires the consideration of many environmental aspects (e.g., noise, vibrations, dust and waste production, energy consumption)...
March 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28210804/ankle-valgus-following-non-vascularized-fibular-grafts-in-children-an-outcome-evaluation-minimum-two%C3%A2-years-after-fibular-harvest
#17
Anil Agarwal, Deepak Kumar, Nargesh Agrawal, Neeraj Gupta
BACKGROUND: The literature on ankle valgus development after procuring non-vascularised fibular grafts in children is still scanty. The non-vascularised fibular graft has distinction of fibular regeneration occurring at the donor site. MATERIAL AND METHODS: We retrospectively analysed the valgus deformities at the donor leg following harvest of non-vascularised fibular graft to determine the various contributing factors in growing children. All these patients had minimum two years post index procedure follow up...
February 16, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28210762/-impact-assessment-of-inadequate-hospital-disaster-management-reflection-based-on-a%C3%A2-risk-model
#18
E Pfenninger, H Güzelel
BACKGROUND: According to legal regulations alarm and emergency plans have to be developed and kept current in hospitals. However, often neither the hospital administration, nor the medical employees and nursing staff pay the necessary attention to these alarm and evacuation plans. In particular, risks and consequences - including financial ones - due to insufficient planning, are not adequately considered. OBJECTIVES: Risks in hospitals are assessed based on a risk analysis...
February 16, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28210645/responsiveness-comparison-of-the-eq-5d-promis-global-health-and-vr-12-questionnaires-in-knee-arthroscopy
#19
Sameer R Oak, Gregory J Strnad, James Bena, Lutul D Farrow, Richard D Parker, Morgan H Jones, Kurt P Spindler
BACKGROUND: The EuroQol 5 dimensions questionnaire (EQ-5D), Patient-Reported Outcomes Measurement Information System (PROMIS) 10 Global Health, and Veterans RAND 12-Item Health Survey (VR-12) are generic patient-reported outcome (PRO) questionnaires that assess a patient's general health. In choosing a PRO to track general health status, it is necessary to consider which measure will be the most responsive to change after treatment. To date, no studies exist comparing responsiveness among the EQ-5D, PROMIS 10 Global Health, and the Veterans Rand 12-Item Health Survey (VR-12)...
December 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28210343/reliability-and-factorial-validity-of-non-specific-and-tennis-specific-pre-planned-agility-tests-preliminary-analysis
#20
Damir Sekulic, Ognjen Uljevic, Mia Peric, Miodrag Spasic, Miran Kondric
Agility is an important quality in tennis, yet there is an evident lack of studies focussing on the applicability of tennis-specific agility performances and comparing them to equivalent non-specific agility performances. The aim of this study was to evaluate the reliability and factorial validity of three tests of pre-planned agility, performed in specific (with a tennis racquet) and non-specific (without a tennis racquet) conditions. The sample consisted of 33 tennis players (13 males and 20 females; age: 18...
January 1, 2017: Journal of Human Kinetics
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