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https://www.readbyqxmd.com/read/29035688/why-social-relationships-are-important-for-physical-health-a-systems-approach-to-understanding-and-modifying-risk-and-protection
#1
Julianne Holt-Lunstad
Social relationships are adaptive and crucial for survival. This review presents existing evidence that our social connections to others have powerful influences on health and longevity and that lacking social connection qualifies as a risk factor for premature mortality. A systems perspective is presented as a framework by which to move social connection into the realm of public health. Individuals, and health-relevant biological processes, exist within larger social contexts including the family, neighborhood and community, and society and culture...
October 16, 2017: Annual Review of Psychology
https://www.readbyqxmd.com/read/29035261/the-effect-of-acidification-on-the-bioavailability-and-electrochemical-lability-of-zinc-in-seawater
#2
Ja-Myung Kim, Oliver Baars, François M M Morel
A poorly studied but potentially important consequence of the CO2-induced acidification of the surface ocean is a possible change in the bioavailability of trace metals, which play a critical role in the productivity and population dynamics of marine ecosystems. We report laboratory and field experiments designed to compare quantitatively the effects of acidification on the bioavailability of Zn, a metal essential to the growth of phytoplankton and on the extent of its complexation by model and natural ligands...
November 28, 2016: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29035175/lifestyle-medicine-a-brief-review-of-its-dramatic-impact-on-health-and-survival
#3
Balazs I Bodai, Therese E Nakata, William T Wong, Dawn R Clark, Steven Lawenda, Christine Tsou, Raymond Liu, Linda Shiue, Neil Cooper, Michael Rehbein, Benjamin P Ha, Anne Mckeirnan, Rajiv Misquitta, Pankaj Vij, Andrew Klonecke, Carmelo S Mejia, Emil Dionysian, Sean Hashmi, Michael Greger, Scott Stoll, Thomas M Campbell
By ignoring the root causes of disease and neglecting to prioritize lifestyle measures for prevention, the medical community is placing people at harm. Advanced nations, influenced by a Western lifestyle, are in the midst of a health crisis, resulting largely from poor lifestyle choices. Epidemiologic, ecologic, and interventional studies have repeatedly indicated that most chronic illnesses, including cardiovascular disease, cancer, and type 2 diabetes, are the result of lifestyles fueled by poor nutrition and physical inactivity...
2017: Permanente Journal
https://www.readbyqxmd.com/read/29035006/applying-systems-thinking-to-inform-studies-of-wildlife-trade-in-primates
#4
Mary E Blair, Minh D Le, Hoàng M Thạch, Anna Panariello, Ngọc B Vũ, Mark G Birchette, Gautam Sethi, Eleanor J Sterling
Wildlife trade presents a major threat to primate populations, which are in demand from local to international scales for a variety of uses from food and traditional medicine to the exotic pet trade. We argue that an interdisciplinary framework to facilitate integration of socioeconomic, anthropological, and biological data across multiple spatial and temporal scales is essential to guide the study of wildlife trade dynamics and its impacts on primate populations. Here, we present a new way to design research on wildlife trade in primates using a systems thinking framework...
October 16, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/29034456/trait-fitness-relationships-determine-how-trade-off-shapes-affect-species-coexistence
#5
Elias Ehrlich, Lutz Becks, Ursula Gaedke
Trade-offs between functional traits are ubiquitous in nature and can promote species coexistence depending on their shape. Classic theory predicts that convex trade-offs facilitate coexistence of specialized species with extreme trait values (extreme species) while concave trade-offs promote species with intermediate trait values (intermediate species). We show here that this prediction becomes insufficient when the traits translate non-linearly into fitness which frequently occurs in nature, e.g. an increasing length of spines reduces grazing losses only up to a certain threshold resulting in a saturating or sigmoid trait-fitness function...
October 15, 2017: Ecology
https://www.readbyqxmd.com/read/29034337/new-biomarkers-of-post-settlement-growth-in-the-sea-urchin-strongylocentrotus-purpuratus
#6
Alyaa Elsaid Abdelaziz Fadl, Magdy Elsayed Mahfouz, Mona Mabrouk Taha El-Gamal, Andreas Heyland
Some sea urchins, including the purple sea urchin Strongylocentrotus purpuratus, have been successfully used in aquaculture, but their slow growth and late reproduction are challenging to overcome when developing efficient aquaculture production techniques. S. purpuratus develops via an indirect life history that is characterized by a drastic settlement process at the end of a larval period that lasts for several weeks. During this transition, the bilateral larva is transformed into a pentaradial juvenile, which will start feeding and growing in the benthic habitat...
October 2017: Heliyon
https://www.readbyqxmd.com/read/29034326/bacterial-lipopolysaccharide-destabilizes-influenza-viruses
#7
Christopher Bandoro, Jonathan A Runstadler
Depending on the specific viral pathogen, commensal bacteria can promote or reduce the severity of viral infection and disease progression in their hosts. Influenza A virus (IAV) has a broad host range, comprises many subtypes, and utilizes different routes of transmission, including the fecal-oral route in wild birds. It has been previously demonstrated that commensal bacteria can interact with the host's immune system to protect against IAV pathogenesis. However, it is unclear whether bacteria and their products may be interacting directly with IAV to impact virion stability...
September 2017: MSphere
https://www.readbyqxmd.com/read/29034123/ecological-niche-modeling-for-filoviruses-a-risk-map-for-ebola-and-marburg-virus-disease-outbreaks-in-uganda
#8
Luke Nyakarahuka, Samuel Ayebare, Gladys Mosomtai, Clovice Kankya, Julius Lutwama, Frank Norbert Mwiine, Eystein Skjerve
INTRODUCTION: Uganda has reported eight outbreaks caused by filoviruses between 2000 to 2016, more than any other country in the world. We used species distribution modeling to predict where filovirus outbreaks are likely to occur in Uganda to help in epidemic preparedness and surveillance. METHODS: The MaxEnt software, a machine learning modeling approach that uses presence-only data was used to establish filovirus - environmental relationships. Presence-only data for filovirus outbreaks were collected from the field and online sources...
September 5, 2017: PLoS Currents
https://www.readbyqxmd.com/read/29033780/evolutionary-musicology-meets-embodied-cognition-biocultural-coevolution-and-the-enactive-origins-of-human-musicality
#9
REVIEW
Dylan van der Schyff, Andrea Schiavio
Despite evolutionary musicology's interdisciplinary nature, and the diverse methods it employs, the field has nevertheless tended to divide into two main positions. Some argue that music should be understood as a naturally selected adaptation, while others claim that music is a product of culture with little or no relevance for the survival of the species. We review these arguments, suggesting that while interesting and well-reasoned positions have been offered on both sides of the debate, the nature-or-culture (or adaptation vs...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29033172/environmental-characterization-of-a-semiarid-hyper-saline-system-based-on-dissolved-trace-metal-macronutrient-synergy-a-multivariate-spatio-temporal-approach
#10
Turki Al-Said, Rakhesh Madhusoodhanan, Tanuspong Pokavanich, Faiza Al-Yamani, Raziya Kedila, Aws Al-Ghunaim, Ali Al-Hashem
Trace metals and macronutrients play key roles in marine biogeochemical processes. Despite their higher availability, no reliable information is available on their ecological role in the hypersaline waters of NW Arabian Gulf. The present study identifies their synergistic effect on environmental characteristics and autotrophic biomass in the shallow coastal and offshore waters, off Kuwait on a seasonal basis. Surface water samples collected along four predefined transects were analyzed for physico-chemical and biological variables during summer (n=27) and winter (n=27) seasons...
October 12, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/29032927/mortality-from-systemic-lupus-erythematosus-in-brazil-evaluation-of-causes-according-to-the-government-health-database
#11
Luisa Ribeiro Costi, Hatsumi Miyashiro Iwamoto, Dilma Costa de Oliveira Neves, Cezar Augusto Muniz Caldas
OBJECTIVE: To characterize the causes of mortality in patients with systemic lupus erythematosus (SLE) in Brazil between 2002 and 2011. METHODS: An exploratory ecological study of a time series using data from the Mortality Information System of DATASUS, the Department of the Unified Health System (Brazil's National Health System). RESULTS: Brazil's SLE mortality rate was 4.76 deaths/10(5) inhabitants. The mortality rate was higher in the Midwest, North and Southeast regions than in the country as a whole...
October 9, 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/29032502/gut-microbiota-changes-in-the-extreme-decades-of-human-life-a-focus-on-centenarians
#12
REVIEW
Aurelia Santoro, Rita Ostan, Marco Candela, Elena Biagi, Patrizia Brigidi, Miriam Capri, Claudio Franceschi
The gut microbiota (GM) is a complex, evolutionarily molded ecological system, which contributes to a variety of physiological functions. The GM is highly dynamic, being sensitive to environmental stimuli, and its composition changes over the host's entire lifespan. However, the basic question of how much these changes may be ascribed to variables such as population, diet, genetics and gender, and/or to the aging process per se is still largely unanswered. We argue that comparison among studies on centenarians-the best model of healthy aging and longevity-recruited from different geographical areas/populations (different genetics and dietary habits) can help to disentangle the contribution of aging and non-aging-related variables to GM remodeling with age...
October 14, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29032439/the-application-of-chironomid-pupal-exuvial-technique-cpet-for-ecological-analysis-in-a-neotropical-large-river-system
#13
A P Mestre, A C Paggi, L Montalto
This field ecological study, based on the chironomid pupal exuvial technique (CPET), is new for the Paraná River and proposes an efficient tool to be used in future ecological approaches and biomonitoring. Drifting of pupal exuviae in a river-floodplain system of the Middle Paraná River floodplain was represented by 34 Chironomidae taxa, being the characteristic association obtained from the CPET: Lopescladius, Onconeura, Paralauterborniella, Polypedilum, and Harnischia complex. Diversity, richness, dominance, total density, and density of dominant taxa were different between the longitudinal and lateral dimensions but not between hydrologic phases, with a greater diversity and richness in the main channel of the river and higher density and dominance in floodplain habitats...
October 14, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/29032277/marine-ecological-risk-assessment-methods-for-radiation-accidents
#14
Sufen Ye, Luoping Zhang, Huan Feng
Ecological risk assessment (ERA) is a powerful technical tool that can be used to analyze potential and extreme adverse environmental impacts. With the rapid development of nuclear power plants in coastal areas around the world, the establishment of approaches and methodologies for marine ERA with a focus on radiation accidents is an urgent requirement for marine environmental management. In this study, the approaches and methodologies for ERA pertaining to marine radiation accidents (MRA) are discussed and summarized with applications in case studies, such as the nuclear accident in Fukushima, Japan, and a hypothetical accident in Daya Bay, China...
October 12, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29031470/the-resonant-system-linking-brain-body-environment-in-sport-performance-%C3%A2
#15
Pedro Teques, Duarte Araújo, Ludovic Seifert, Vicente L Del Campo, Keith Davids
The ecological dynamics approach offers new insights to understand how athlete nervous systems are embedded within the body-environment system in sport. Cognitive neuroscience focuses on the neural bases of athlete behaviors in terms of perceptual, cognitive, and motor functions defined within specific brain structures. Here, we discuss some limitations of this traditional perspective, addressing how athletes functionally adapt perception and action to the dynamics of complex performance environments by continuously perceiving information to regulate goal-directed actions...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29030755/social-ecological-system-responses-to-hurricane-sandy-in-the-hudson-raritan-estuary
#16
Megan Rothenberger, Andrea Armstrong, Mia Spitz
The impact of Hurricane Sandy on the Hudson-Raritan estuary (HRE) provided a valuable case study for exploring interactions between long-term environmental degradation, new climatic disturbance stressors, and human behavioral responses. We extend previous research on the ecological effects of major storms to compare water quality and biological parameters three years before and three years after Hurricane Sandy and consider how ecosystem shifts relate to anglers' perceptions. Results indicate that water clarity and nutrients returned to pre-storm conditions in about one year, while shifts in the biological community, including a significant increase in harmful algal species and declines in zooplankton and Atlantic menhaden, persisted for multiple years, and anglers continued to fish amidst ecosystem decline...
October 13, 2017: Ambio
https://www.readbyqxmd.com/read/29029381/biochemical-responses-and-accumulation-patterns-of-mytilus-galloprovincialis-exposed-to-thermal-stress-and-arsenic-contamination
#17
Francesca Coppola, Ângela Almeida, Bruno Henriques, Amadeu M V M Soares, Etelvina Figueira, Eduarda Pereira, Rosa Freitas
Organisms in marine systems are exposed to multiple stressors that create a range of associated environmental and ecotoxicological risks. Examples of stressors include alterations related to climate change, such as temperature increase, and the exposure to pollutants arising from human activities. The present study evaluated the impacts of Arsenic exposure (1mg/L) and warming (21°C) in Mytilus galloprovincialis, acting alone and in combination. Our results demonstrated that both Arsenic exposure and warming induced oxidative stress and reduced mussels metabolism, with changes becoming more prominent with the exposure time and when mussels were exposed to both stressors in combination...
October 4, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29028068/more-than-euglossines-the-diverse-pollinators-and-floral-scents-of-zygopetalinae-orchids
#18
Carlos E P Nunes, Marina Wolowski, Emerson Ricardo Pansarin, Günter Gerlach, Izar Aximoff, Nicolas J Vereecken, Marcos José Salvador, Marlies Sazima
Floral volatile organic compounds (VOCs) play important roles in plant-pollinator interactions. We investigated the reproductive ecology and floral VOCs of Zygopetalinae orchids to understand the relationship between floral scents and pollinators. We performed focal observations, phenological censuses and breeding system experiments in eight species in southeast Brazil. Floral scents were collected and analysed using SPME/GC-MS. We performed multivariate analyses to group species according to affinities of their VOCs and define compounds associated to each plant...
October 13, 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/29027996/aquatic-urban-ecology-at-the-scale-of-a-capital-community-structure-and-interactions-in-street-gutters
#19
Vincent Hervé, Boris Leroy, Albert Da Silva Pires, Pascal Jean Lopez
In most cities, streets are designed for collecting and transporting dirt, litter, debris, storm water and other wastes as a municipal sanitation system. Microbial mats can develop on street surfaces and form microbial communities that have never been described. Here, we performed the first molecular inventory of the street gutter-associated eukaryotes across the entire French capital of Paris and the non-potable waters sources. We found that the 5782 OTUs (operational taxonomic units) present in the street gutters which are dominated by diatoms (photoautotrophs), fungi (heterotrophs), Alveolata and Rhizaria, includes parasites, consumers of phototrophs and epibionts that may regulate the dynamics of gutter mat microbial communities...
October 13, 2017: ISME Journal
https://www.readbyqxmd.com/read/29027982/regional-sustainable-development-analysis-based-on-information-entropy-sichuan-province-as-an-example
#20
Xuedong Liang, Dongyang Si, Xinli Zhang
According to the implementation of a scientific development perspective, sustainable development needs to consider regional development, economic and social development, and the harmonious development of society and nature, but regional sustainable development is often difficult to quantify. Through an analysis of the structure and functions of a regional system, this paper establishes an evaluation index system, which includes an economic subsystem, an ecological environmental subsystem and a social subsystem, to study regional sustainable development capacity...
October 13, 2017: International Journal of Environmental Research and Public Health
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