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Daniel Ricardo Nascimento, A Eugene DePrince
We report an explicitly time-dependent approach to the generation of linear absorption spectra for molecular systems within the framework of equation-of-motion (EOM) coupled-cluster (CC) theory. While most time-dependent CC approaches consider the perturbation and time-evolution of a CC wave function, the present work considers the time-evolution of a CC dipole function. The dipole function formalism introduces no approximations and requires the evolution of only one time-dependent quantity, either the left or the right dipole function...
October 25, 2016: Journal of Chemical Theory and Computation
Wendy M Gordon
Midwifery associations are increasing awareness and commitment to racial equity in the profession and in the communities we serve. Moving these commitments from words into action may be facilitated by a racial equity toolkit to help guide midwifery organizations to consider all policies, initiatives, and actions with a racial equity lens. Racial equity impact analyses have been used in recent years by various governmental agencies in the United States and abroad with positive results, and emerging literature indicates that nonprofit organizations are having similarly positive results...
October 25, 2016: Journal of Midwifery & Women's Health
Travis Hoppe, Allen P Minton
In order to better understand how nonspecific interactions between solutes can modulate specific biochemical reactions taking place in complex media, we introduce a simplified model aimed at elucidating general principles. In this model, solutions containing two or three species of interacting globular proteins are modeled as a fluid of spherical particles interacting through square well potentials that qualitatively capture both steric hard core repulsion and longer-ranged attraction or repulsion. The excess chemical potential, or free energy of solvation, of each particle species is calculated as a function of species concentrations, particle radii, and square well interaction range and depth...
October 25, 2016: Journal of Physical Chemistry. B
Trudy Klomp, Anke B Witteveen, Ank de Jonge, Eileen K Hutton, Antoine L M Lagro-Janssen
INTRODUCTION: Many pregnant women are concerned about the pain they will experience in labor and how to deal with this. This study's objective was to explore women's postpartum perception and view of how they dealt with labor pain. METHODS: Semistructured postpartum interviews were analyzed using the constant comparison method. Using purposive sampling, we selected 17 women from five midwifery practices across the Netherlands, from August 2009 to September 2010...
October 25, 2016: Journal of Psychosomatic Obstetrics and Gynaecology
Ratilal Lalloo, Geetesh Solanki, Khabiso Ramphoma, Neil G Myburgh
AIM: In the present study, we assessed the patterns and types of antibiotics prescribed following tooth extractions, and the alignment of these practices with the evidence available. METHODS: The study used health insurance claim data from South African dental practitioners for 2013, analyzing the antibiotic prescribing patterns around tooth extractions, separately for four event types: exposed (simple) tooth extractions in: (a) healthy patients and (b) patients with chronic conditions; and impacted tooth extractions in (c) healthy patients and (d) patients with a chronic condition...
October 24, 2016: Journal of Investigative and Clinical Dentistry
Anupam P Vedurmudi, Bruce A Young, J Leo van Hemmen
In internally coupled ears (ICE), the displacement of one eardrum creates pressure waves that propagate through air-filled passages in the skull, causing a displacement of the opposing eardrum and vice versa. In this review, a thorough mathematical analysis of the membranes, passages, and propagating pressure waves reveals how internally coupled ears generate unique amplitude and temporal cues for sound localization. The magnitudes of both of these cues are directionally dependent. On the basis of the geometry of the interaural cavity and the elastic properties of the two eardrums confining it at both ends, the present paper reviews the mathematical theory underlying hearing through ICE and derives analytical expressions for eardrum vibrations as well as the pressures inside the internal passages, which ultimately lead to the emergence of highly directional hearing cues...
October 25, 2016: Biological Cybernetics
James W N Steenberg, Andrew A Millward, David J Nowak, Pamela J Robinson, Alexis Ellis
The benefits derived from urban forest ecosystems are garnering increasing attention in ecological research and municipal planning. However, because of their location in heterogeneous and highly-altered urban landscapes, urban forests are vulnerable and commonly suffer disproportionate and varying levels of stress and disturbance. The objective of this study is to assess and analyze the spatial and temporal changes, and potential vulnerability, of the urban forest resource in Toronto, Canada. This research was conducted using a spatially-explicit, indicator-based assessment of vulnerability and i-Tree Forecast modeling of temporal changes in forest structure and function...
October 24, 2016: Environmental Management
Behnoosh Parsa, Vladimir M Zatsiorsky, Mark L Latash
We address the nature of unintentional changes in performance in two papers. This second paper tested hypotheses related to stability of task-specific performance variables estimated using the framework of the uncontrolled manifold (UCM) hypothesis. Our first hypothesis was that selective stability of performance variables would be observed even when the magnitudes of those variables drifted unintentionally because of the lack of visual feedback. Our second hypothesis was that stability of a variable would depend on the number of explicit task constraints...
October 24, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
Valeria Bellan, Helen R Gilpin, Tasha R Stanton, Lilja K Dagsdóttir, Alberto Gallace, G Lorimer Moseley
When vision and proprioception are rendered incongruent during a hand localisation task, vision is initially weighted more than proprioception in determining location, and proprioception gains more weighting over time. However, it is not known whether, under these incongruency conditions, particular areas of space are also weighted more heavily than others, nor whether explicit knowledge of the sensory incongruence (i.e. disconfirming the perceived location of the hand) modulates the effect. Here, we hypothesised that both non-informative inputs coming from one side of space and explicit knowledge of sensory incongruence would modulate perceived location of the limb...
October 24, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
Chenggang Ci, Hongsheng Liu, Likai Yan, Zhongmin Su
Aqua-coordinated sandwich-type polyoxometalates (POMs), {[WZnTM2(H2O)2](ZnW9O34)2} (n-) (TM=Rh(III), Pd(II), and Pt(II)), catalyze olefin epoxidation with hydrogen peroxide and have been well established, and they present an advance toward the utilization of olefins. To elucidate the epoxidation mechanism, we systematically performed density functional calculations. The reaction proceeds through a two-step mechanism: activation of H2O2 and oxygen transfer. The aqua-coordinated complexes show two distinct H2O2 activation pathways: "two-step" and "concerted"...
October 2016: ChemistryOpen
Doug MacNearney, Karine Pigeon, Gordon Stenhouse, Wiebe Nijland, Nicholas C Coops, Laura Finnegan
Anthropogenic landscape change (i.e., disturbance) is recognized as an important factor in the decline and extirpation of wildlife populations. Understanding and monitoring the relationship between wildlife distribution and disturbance is necessary for effective conservation planning. Many studies consider disturbance as a covariate explaining wildlife behavior. However, we propose that there are several advantages to considering the spatial relationship between disturbance and wildlife directly using utilization distributions (UDs), including objective assessment of the spatially explicit overlap between wildlife and disturbance, and the ability to track trends in this relationship over time...
September 2016: Ecology and Evolution
Gili Freedman, Kipling D Williams, Jennifer S Beer
Social exclusion is an interactive process between multiple people, yet previous research has focused almost solely on the negative impacts on targets. What advice is there for people on the other side (i.e., sources) who want to minimize its negative impact and preserve their own reputation? To provide an impetus for research on the interactive nature of exclusion, we propose the Responsive Theory of Social Exclusion. Our theory postulates that targets and sources' needs are better maintained if sources use clear, explicit verbal communication...
2016: Frontiers in Psychology
Christoph Justen, Cornelia Herbert
So far, neurophysiological studies have investigated implicit and explicit self-related processing particularly for self-related stimuli such as the own face or name. The present study extends previous research to the implicit processing of self-related movement sounds and explores their spatio-temporal dynamics. Event-related potentials (ERPs) were assessed while participants (N = 12 healthy subjects) listened passively to previously recorded self- and other-related finger snapping sounds, presented either as deviants or standards during an oddball paradigm...
2016: Frontiers in Human Neuroscience
Franklin P Tamborello, J Gregory Trafton
OBJECTIVE: A computational process model could explain how the dynamic interaction of human cognitive mechanisms produces each of multiple error types. BACKGROUND: With increasing capability and complexity of technological systems, the potential severity of consequences of human error is magnified. Interruption greatly increases people's error rates, as does the presence of other information to maintain in an active state. METHOD: The model executed as a software-instantiated Monte Carlo simulation...
October 24, 2016: Human Factors
Abdulrahman Abdulla El-Hilly, Sheeraz Syed Iqbal, Maroof Ahmed, Yusuf Sherwani, Mohammed Muntasir, Sarim Siddiqui, Zaid Al-Fagih, Omar Usmani, Andreas B Eisingerich
BACKGROUND: Finding ways to increase and sustain engagement with mHealth interventions has become a challenge during application development. While gamification shows promise and has proven effective in many fields, critical questions remain concerning how to use gamification to modify health behavior. OBJECTIVE: The objective of this study is to investigate how the gamification of mHealth interventions leads to a change in health behavior, specifically with respect to smoking cessation...
October 24, 2016: JMIR Serious Games
Gianluca Macauda, Robin Bekrater-Bodmann, Peter Brugger, Bigna Lenggenhager
Individuals with xenomelia identify with an amputated rather than with their physically complete, healthy body. They often mimic amputees and show a strong admiration of and sexual attraction towards them. Here we investigated for the first time empirically whether such unusual preference for amputated bodies is present also on an implicit level. Using the well-validated Implicit Association Test we show that individuals with xenomelia manifested a stronger implicit and explicit preference for amputated bodies than a normally-limbed control group and a group of involuntary amputees did...
September 21, 2016: Journal of Psychiatric Research
Amy E Barth, Amy Elleman
Purpose: We examined the effectiveness of a multistrategy inference intervention designed to increase inference making and reading comprehension for middle-grade struggling readers. Method: A total of 66 middle-grade struggling readers were randomized to treatment (n = 33) and comparison (n = 33) conditions. Students in the treatment group received explicit instruction in 4 inference strategies (i.e., clarification using text clues; activating and using prior knowledge; understanding character perspectives and author's purpose; answering inferential questions)...
October 24, 2016: Language, Speech, and Hearing Services in Schools
J R Yuan, X H Yan, Y Xiao, Y D Guo, C J Dai
Motivated by recent measurement of the magnetism and conductance of the oxygen-assisted Pt nanojunctions, we performed first principle calculations of the magnetic order and electronic transport by explicitly including fully relativistic effects. Our results show that the spin alignment is a cycloidal spiral feature attributed to the Dzyaloshinskii-Moriya interaction, which indicates that the observed magnetism in experiments is of noncollinear nature. The oxygen concentration is the responsible for the switching of the rotational sense of the spiral magnetic order found in oxygen-assisted Pt nanojunctions...
October 24, 2016: Nanotechnology
Laura Mannocci, Jason J Roberts, David L Miller, Patrick N Halpin
As human activities expand beyond national jurisdictions to the high seas, there is increasing need to consider anthropogenic impacts to species that inhabit these waters. The current scarcity of scientific observations of cetaceans in the high seas impedes the assessment of population-level impacts of these activities. This study is directed towards an important management need in the high seas-the development of plausible density estimates to facilitate a quantitative assessment of anthropogenic impacts on cetacean populations in these waters...
October 24, 2016: Conservation Biology: the Journal of the Society for Conservation Biology
Le Van Hien, Doan Thai Son, Hieu Trinh
This brief addresses the problem of global dissipativity analysis of nonautonomous neural networks with multiple proportional delays. By using a novel constructive approach based on some comparison techniques for differential inequalities, new explicit delay-independent conditions are derived using M-matrix theory to ensure the existence of generalized exponential attracting sets and the global dissipativity of the system. The method presented in this brief is also utilized to derive a generalized exponential estimate for a class of Halanay-type inequalities with proportional delays...
October 19, 2016: IEEE Transactions on Neural Networks and Learning Systems
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