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Complexity Sciences

William M Jackson, Nicholas Davis, Stephen A Sands, Robert A Whittington, Lena S Sun
RESEARCH QUESTION: Is there an association between regular exercise, defined as a structured program of increased physical activity at least 1 month in duration, and improvements in measures of executive functions compared with children who engage in their normal daily activities? CONTEXT: The association between increased physical activity and changes in performance on tasks of executive functions have not been well elucidated in children. Executive functioning is important to intellectual development and academic success in children, and inexpensive, nonpharmacological methods for the treatment of executive dysfunction represent an attractive interventional target...
October 2016: Journal of Neurosurgical Anesthesiology
Giorgio Lanzani, Ari P Seitsonen, Marcella Iannuzzi, Kari Laasonen, Simo Olavi Pehkonen
The chemistry of aluminium or oxo-aluminium in water is still relatively unknown, although it is the basis for many chemical and industrial processes, including floc- culation in water treatment plants. Trimeric species have a predominant role in the formation of the Keggin cations, which are the basic building block of aluminium- based chemicals. Despite this, the details of the structural evolution of these small solvated clusters and how this is related to the processes leading to the formation of larger aggregates is still an open issue...
October 21, 2016: Journal of Physical Chemistry. B
Alex R Hardisty, Finn Bacall, Niall Beard, Maria-Paula Balcázar-Vargas, Bachir Balech, Zoltán Barcza, Sarah J Bourlat, Renato De Giovanni, Yde de Jong, Francesca De Leo, Laura Dobor, Giacinto Donvito, Donal Fellows, Antonio Fernandez Guerra, Nuno Ferreira, Yuliya Fetyukova, Bruno Fosso, Jonathan Giddy, Carole Goble, Anton Güntsch, Robert Haines, Vera Hernández Ernst, Hannes Hettling, Dóra Hidy, Ferenc Horváth, Dóra Ittzés, Péter Ittzés, Andrew Jones, Renzo Kottmann, Robert Kulawik, Sonja Leidenberger, Päivi Lyytikäinen-Saarenmaa, Cherian Mathew, Norman Morrison, Aleksandra Nenadic, Abraham Nieva de la Hidalga, Matthias Obst, Gerard Oostermeijer, Elisabeth Paymal, Graziano Pesole, Salvatore Pinto, Axel Poigné, Francisco Quevedo Fernandez, Monica Santamaria, Hannu Saarenmaa, Gergely Sipos, Karl-Heinz Sylla, Marko Tähtinen, Saverio Vicario, Rutger Aldo Vos, Alan R Williams, Pelin Yilmaz
BACKGROUND: Making forecasts about biodiversity and giving support to policy relies increasingly on large collections of data held electronically, and on substantial computational capability and capacity to analyse, model, simulate and predict using such data. However, the physically distributed nature of data resources and of expertise in advanced analytical tools creates many challenges for the modern scientist. Across the wider biological sciences, presenting such capabilities on the Internet (as "Web services") and using scientific workflow systems to compose them for particular tasks is a practical way to carry out robust "in silico" science...
October 20, 2016: BMC Ecology
Sebastian Sippel, Holger Lange, Miguel D Mahecha, Michael Hauhs, Paul Bodesheim, Thomas Kaminski, Fabian Gans, Osvaldo A Rosso
Data analysis and model-data comparisons in the environmental sciences require diagnostic measures that quantify time series dynamics and structure, and are robust to noise in observational data. This paper investigates the temporal dynamics of environmental time series using measures quantifying their information content and complexity. The measures are used to classify natural processes on one hand, and to compare models with observations on the other. The present analysis focuses on the global carbon cycle as an area of research in which model-data integration and comparisons are key to improving our understanding of natural phenomena...
2016: PloS One
Djordje Mirkovic, Phillip M Stepanian, Jeffrey F Kelly, Phillip B Chilson
The radar scattering characteristics of aerial animals are typically obtained from controlled laboratory measurements of a freshly harvested specimen. These measurements are tedious to perform, difficult to replicate, and typically yield only a small subset of the full azimuthal, elevational, and polarimetric radio scattering data. As an alternative, biological applications of radar often assume that the radar cross sections of flying animals are isotropic, since sophisticated computer models are required to estimate the 3D scattering properties of objects having complex shapes...
October 20, 2016: Scientific Reports
Shannon Dorsey, Katie A McLaughlin, Suzanne E U Kerns, Julie P Harrison, Hilary K Lambert, Ernestine C Briggs, Julia Revillion Cox, Lisa Amaya-Jackson
Child and adolescent trauma exposure is prevalent, with trauma exposure-related symptoms, including posttraumatic stress, depressive, and anxiety symptoms often causing substantial impairment. This article updates the evidence base on psychosocial treatments for child and adolescent trauma exposure completed for this journal by Silverman et al. (2008). For this review, we focus on 37 studies conducted during the seven years since the last review. Treatments are grouped by overall treatment family (e.g., cognitive behavioral therapy), treatment modality (e...
October 19, 2016: Journal of Clinical Child and Adolescent Psychology
Sharron L Docherty, Allison Vorderstrasse, Debra Brandon, Constance Johnson
Nursing scientists have long been interested in complex, context-dependent questions addressing individual- and population-level challenges in health and illness. These critical questions require multilevel data (e.g., genetic, physiologic, biologic, behavioral, affective, and social). Advances in data-gathering methods have resulted in the collection of large sets of complex, multifaceted, and often non-comparable data. Scientific visualization is a powerful methodological tool for facilitating understanding of these multidimensional data sets...
October 18, 2016: Western Journal of Nursing Research
M Schrappe, H Pfaff
In Germany, Health Services Research (HSR) is undergoing rapid and impressive development. Starting from the translation of methods in individual health care (efficacy-effectiveness gap) and the social-scientific description as well as analysis of health care structures and processes, now it is the implementation of complex interventions on the organizational and system level that is the center of interest. This development is mainly triggered by the establishment of the so-called innovation funds by means of legislation in 2015, which has the task to evaluate structural changes and reforms in outpatient and integrated health care...
October 18, 2016: Das Gesundheitswesen
Helen R Sofaer, Susan K Skagen, Joseph J Barsugli, Benjamin S Rashford, Gordon C Reese, Jennifer A Hoeting, Andrew W Wood, Barry R Noon
Climate change poses major challenges for conservation and management because it alters the area, quality, and spatial distribution of habitat for natural populations. To assess species' vulnerability to climate change and target ongoing conservation investments, researchers and managers often consider the effects of projected changes in climate and land use on future habitat availability and quality and the uncertainty associated with these projections. Here, we draw on tools from hydrology and climate science to project the impact of climate change on the density of wetlands in the Prairie Pothole Region of the USA, a critical area for breeding waterfowl and other wetland-dependent species...
September 2016: Ecological Applications: a Publication of the Ecological Society of America
Cristóbal Ovidio Muñoz, Diego Restrepo, Doris Cardona
Objective Characterize the theoretical models that have underpinned empirical research on the concept of positive mental health from the time it first emerged in the field of health up to the present. Methods A systematic search of the literature was conducted in PubMed, EBSCO (including Academic Search Complete, ERIC, Academic Source, MasterFILE Premier, MedicLatina, MEDLINE, and the Psychology and Behavioral Sciences Collection), Science Direct, Psicodoc, Springer Link, Taylor & Francis, Wiley Online Library, Directory of Open Access Journals (DOAJ), Redalyc, SciELO, Ovid, Embase, and ProQuest (including Health and Medical Complete, the Nursing and Allied Health Source, Psychology Journals, and Social Science Journals)...
March 2016: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
Carla C Baan
Over 3000 delegates attended the 26st International Congress of the Transplantation Society in Hong Kong, which marked the 50th anniversary of the society. In his presidential address, Professor Phil O'Connell from the Westmead Hospital in Sydney, Australia, commented that a major challenge for the future is improving long-term outcomes after solid organ transplantation. He highlighted that 40% of transplanted organs are lost within 10 years, and that a high proportion of patients suffer from immunosuppression-related side effects...
October 7, 2016: Transplantation
Gabrielle Wong-Parodi, Wändi Bruine de Bruin
As the specter of climate change looms on the horizon, people will face complex decisions about whether to support climate change policies and how to cope with climate change impacts on their lives. Without some grasp of the relevant science, they may find it hard to make informed decisions. Climate experts therefore face the ethical need to effectively communicate to non-expert audiences. Unfortunately, climate experts may inadvertently violate the maxims of effective communication, which require sharing communications that are truthful, brief, relevant, clear, and tested for effectiveness...
October 17, 2016: Science and Engineering Ethics
Alessio Gambetta, Marco Cassinerio, Davide Gatti, Paolo Laporta, Gianluca Galzerano
Direct optical Frequency Comb Spectroscopy (DFCS) is proving to be a fundamental tool in many areas of science and technology thanks to its unique performance in terms of ultra-broadband, high-speed detection and frequency accuracy, allowing for high-fidelity mapping of atomic and molecular energy structure. Here we present a novel DFCS approach based on a scanning Fabry-Pérot micro-cavity resonator (SMART) providing a simple, compact and accurate method to resolve the mode structure of an optical frequency comb...
October 18, 2016: Scientific Reports
Constance E McIntosh, Cynthia M Thomas, Debra Siela
With recommendations from national nursing associations and accrediting bodies to transition to an all baccalaureate prepared nurse workforce by 2020, it is important to understand the expertise that a baccalaureate degreed nurse brings to patient care. The purpose of this article is to establish the differences of a non-bachelor of science in nursing (BSN) registered nurse and a 4-year prepared nurse, as well as to identify the education and clinical trends in critical care that require a BSN-prepared nurse...
November 2016: Dimensions of Critical Care Nursing: DCCN
Andreas Holzinger
Machine learning (ML) is the fastest growing field in computer science, and health informatics is among the greatest challenges. The goal of ML is to develop algorithms which can learn and improve over time and can be used for predictions. Most ML researchers concentrate on automatic machine learning (aML), where great advances have been made, for example, in speech recognition, recommender systems, or autonomous vehicles. Automatic approaches greatly benefit from big data with many training sets. However, in the health domain, sometimes we are confronted with a small number of data sets or rare events, where aML-approaches suffer of insufficient training samples...
June 2016: Brain Informatics
Bruce S McEwen
As a behavioral neuroscientist and neuroendocrinologist, Randall Sakai appreciated the extensive and complex interactions between the brain and the body as exemplified by his seminal studies on the regulation of salt appetite and the brain and body effects in the Visible Burrow System. He applied state-of-the-art methods to probe underlying mechanisms. Randall's view of science will live on in the influence he had on his many colleagues who were also his friends!
October 13, 2016: Physiology & Behavior
Kevin Patrick, Eric B Hekler, Deborah Estrin, David C Mohr, Heleen Riper, David Crane, Job Godino, William T Riley
This paper addresses the rapid pace of change in the technologies that support digital interventions; the complexity of the health problems they aim to address; and the adaptation of scientific methods to accommodate the volume, velocity, and variety of data and interventions possible from these technologies. Information, communication, and computing technologies are now part of every societal domain and support essentially every facet of human activity. Ubiquitous computing, a vision articulated fewer than 30 years ago, has now arrived...
November 2016: American Journal of Preventive Medicine
B Dal Pupo, M Zanon, A W Tech, L V Cruz, M Cornelli, C do Valle Pereira, J Bertoglio, C Acosta, P Perusato, A J C Monteiro, G Marinho, A P S Souza, C D Garcia
BACKGROUND: Today, Brazil is the second country of the world in number of transplants. Nonetheless, waiting lists are getting longer. This lack of organs occurs mostly because of people's reduced knowledge about the donation process. With the aim of changing this scenario, in 2013 and 2014, "Organ Donation Week" events were held at the Federal University of Health Sciences of Porto Alegre. METHODS: During the 2 years, documentaries followed by a cycle of debates with experts in this area were exhibited...
September 2016: Transplantation Proceedings
John V Thomas, Rupan Sanyal, Janis P O'Malley, Satinder P Singh, Desiree E Morgan, Cheri L Canon
The academic educator's portfolio is a collection of materials that document academic performance and achievements, supplementing the curriculum vitae, in order to showcase a faculty member's most significant accomplishments. A decade ago, a survey of medical schools revealed frustration in the nonuniform methods of measuring faculty's medical education productivity. A proposed solution was the use of an academic educator's portfolio. In the academic medical community, compiling an academic portfolio is always a challenge because teaching has never been confined to the traditional classroom setting and often involves active participation of the medical student, resident, or fellow in the ongoing care of the patient...
October 11, 2016: Academic Radiology
Lia Papadopoulos, James G Puckett, Karen E Daniels, Danielle S Bassett
As a granular material is compressed, the particles and forces within the system arrange to form complex and heterogeneous collective structures. Force chains are a prime example of such structures, and are thought to constrain bulk properties such as mechanical stability and acoustic transmission. However, capturing and characterizing the evolving nature of the intrinsic inhomogeneity and mesoscale architecture of granular systems can be challenging. A growing body of work has shown that graph theoretic approaches may provide a useful foundation for tackling these problems...
September 2016: Physical Review. E
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