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https://www.readbyqxmd.com/read/29454208/barrier-effects-of-remote-high-mountain-on-atmospheric-metal-transport-in-the-eastern-tibetan-plateau
#1
Haijian Bing, Jun Zhou, Yanhong Wu, Xiaosan Luo, Zhongxiang Xiang, Hongyang Sun, Jipeng Wang, He Zhu
Anthropogenic metals adsorbed on suspended fine particles can be deposited on remote and inaccessible high mountains by long-range atmospheric transport. In this study, we investigated the cadmium (Cd) and lead (Pb) in the soils, mosses and rainfall of three transects on the Gongga Mountain, eastern Tibetan Plateau, to understand the mountain interception effects on their atmospheric transport. The concentrations of Cd and Pb in the soils and mosses displayed a pattern of eastern transect>northern transect>western transect...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29454206/less-sensitive-of-urban-surface-to-climate-variability-than-rural-in-northern-china
#2
Rui Yao, Lunche Wang, Xin Huang, Jiangping Chen, Jiarui Li, Zigeng Niu
In this study, the relationships between interannual variations of surface urban heat islands (SUHIs) and climate variability were studied in 31 cities of China for the period 2001-2016. For cold and dry Northern China, it was found that the interannual variations of SUHI intensity (SUHII, land surface temperature (LST) in urban minus rural) in urban cores was significantly (p<0.05) and negatively correlated with rural LST in 9 (in summer days (SDs)) and 8 (in winter days (WDs)) of the 15 northern cities, respectively...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29453644/climate-change-a-call-to-action-for-the-psychiatric-profession
#3
EDITORIAL
John Coverdale, Richard Balon, Eugene V Beresin, Adam M Brenner, Anthony P S Guerrero, Alan K Louie, Laura Weiss Roberts
No abstract text is available yet for this article.
February 16, 2018: Academic Psychiatry
https://www.readbyqxmd.com/read/29453617/site-suitability-evaluation-of-an-old-operating-landfill-using-ahp-and-gis-techniques-and-integrated-hydrogeological-and-geophysical-surveys
#4
Masoud Saatsaz, Iman Monsef, Mostafa Rahmani, Abdolreza Ghods
Because of the outdated methods of common landfill selection, it is imperative to reevaluate the usage suitability. To assess the suitability of the existing waste landfill in Zanjan, Iran, we have used a combination of the analytical hierarchy process (AHP) and GIS techniques, along with fieldwork surveys. Four major criteria and 12 subcriteria were considered, and the AHP was applied to assign the relative importance weights of criteria and subcriteria to each other. Finally, a landfill suitability map was generated and ranked based on the final suitability scores...
February 16, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29453509/critical-thresholds-for-eventual-extinction-in-randomly-disturbed-population-growth-models
#5
Scott D Peckham, Edward C Waymire, Patrick De Leenheer
This paper considers several single species growth models featuring a carrying capacity, which are subject to random disturbances that lead to instantaneous population reduction at the disturbance times. This is motivated in part by growing concerns about the impacts of climate change. Our main goal is to understand whether or not the species can persist in the long run. We consider the discrete-time stochastic process obtained by sampling the system immediately after the disturbances, and find various thresholds for several modes of convergence of this discrete process, including thresholds for the absence or existence of a positively supported invariant distribution...
February 16, 2018: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/29453368/effects-of-timber-harvesting-on-the-genetic-potential-for-carbon-and-nitrogen-cycling-in-five-north-american-forest-ecozones
#6
Erick Cardenas, Luis H Orellana, Konstantinos T Konstantinidis, William W Mohn
Forest ecosystems are critical to global biogeochemical cycles but under pressure from harvesting and climate change. We investigated the effects of organic matter (OM) removal during forest harvesting on the genetic potential of soil communities for biomass decomposition and nitrogen cycling in five ecozones across North America. We analyzed 107 samples, representing four treatments with varied levels of OM removal, at Long-Term Soil Productivity Study sites. Samples were collected more than ten years after harvesting and replanting and were analyzed via shotgun metagenomics...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29453119/an-analysis-of-environmental-incidents-for-a-national-antarctic-program
#7
Shaun T Brooks, Julia Jabour, Andy J Sharman, Dana M Bergstrom
Research stations in Antarctica are concentrated on scarce ice-free habitats. Operating these stations in the harsh Antarctic climate provides many challenges, including the need to handle bulk fuel and cargo increasing the risk of environmental incidents. We examined 195 reports of environmental incidents from the Australian Antarctic Program, spanning six years, to investigate the impacts and pathways of contemporary environmental incidents. Fuel and chemical spills were most common, followed by biosecurity incursions...
February 13, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29453115/cumulative-energy-demand-and-global-warming-potential-of-a-building-integrated-solar-thermal-system-with-without-phase-change-material
#8
Chr Lamnatou, F Motte, G Notton, D Chemisana, C Cristofari
Building-integrated solar thermal (BIST) systems are a specific type of solar thermal systems which are integrated into the building and they participate in building functionality. The present article is about the life-cycle assessment of different options of a BIST system (Mediterranean climatic conditions: Ajaccio, France). The environmental profile of the studied configurations is assessed by means of CED (cumulative energy demand), GWP (global warming potential) and EPBT (energy payback time). The proposed configurations (for the collector) include: i) a system without PCM (phase change material) using only rock wool as insulation and ii) a system with PCM (myristic acid) and rock wool...
February 13, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29452715/cyanobacteria-inhabiting-biological-soil-crusts-of-a-polar-desert-s%C3%A3-r-rondane-mountains-antarctica
#9
Ekaterina Pushkareva, Igor S Pessi, Zorigto Namsaraev, Marie-Jose Mano, Josef Elster, Annick Wilmotte
Molecular and morphological methods were applied to study cyanobacterial community composition in biological soil crusts (BSCs) from four areas (two nunataks and two ridges) in the Sør Rondane Mountains, Antarctica. The sampling sites serve as control areas for open top chambers (OTCs) that were put in place in 2010 at the time of sample collection and will be compared with BSC samples taken from the OTCs in the future. Cyanobacterial cell biovolume was estimated using epifluorescence microscopy, which revealed the dominance of filamentous cyanobacteria in all studied sites except the Utsteinen ridge, where unicellular cyanobacteria were the most abundant...
February 7, 2018: Systematic and Applied Microbiology
https://www.readbyqxmd.com/read/29452424/age-related-changes-in-survival-and-turnover-rates-of-balsam-fir-abies-balsamea-l-mill-fine-roots
#10
Marek J Krasowski, Michael B Lavigne, Michael A Szuter, Jakub Olesinski, John A Kershaw, Elizabeth McGarrigle
Fine-root (≤2 mm) demographics change as forests age, but the direction and extent of change are unknown. Knowledge of the change and understanding of causes will improve predictions of climate change impacts. We used minirhizotrons at three young and three mature balsam fir (Abies balsamea (L.) Mill.) sites to measure median lifespan (MLS) for each site and for annual cohorts. We computed turnover rate from the inverse of MLS (Tinv) and calculated a second turnover rate (T) from annual mortality, annual production and previous year-end standing crop...
February 14, 2018: Tree Physiology
https://www.readbyqxmd.com/read/29452388/structural-and-functional-changes-in-coffee-trees-after-4-years-under-free-air-co2-enrichment
#11
Miroslava Rakocevic, Rafael Vasconcelos Ribeiro, Paulo Eduardo Ribeiro Marchiori, Heloisa Ferreira Filizola, Eunice Reis Batista
Background and Aims: Climate forecasts suggest that [CO2] in the atmosphere will continue to increase. Structural and ecophysiological responses to elevated air [CO2] (e[CO2]) in tree species are contradictory due to species-dependent responses and relatively short-term experiments. It was hypothesized that long-term exposure (4 year) to e[CO2] would change canopy structure and function of Coffea arabica trees. Methods: Coffee plants were grown in a FACE (free air CO2 enrichment) facility under two air [CO2]: actual and elevated (actual + approx...
February 13, 2018: Annals of Botany
https://www.readbyqxmd.com/read/29452109/dengue-infection-in-patients-with-febrile-illness-and-its-relationship-to-climate-factors-a-case-study-in-the-city-of-jeddah-saudi-arabia-for-the-period-2010-2014
#12
Anwar M Hashem, Turki Abujamel, Rowa Alhabbab, Mansour Almazroui, Esam I Azhar
Dengue is an important global arboviral disease with expanding geographical range. It is a major public health concern in Western Saudi Arabia since its first detection in the city of Jeddah in 1994. In this retrospective study, we examined dengue incidence among febrile patients suspected for acute dengue infection at King Abdulaziz University Hospital, Jeddah from 2010 to 2014 and we tried to determine the effect of climate factors on dengue incidence in the city. Acute dengue incidence rates among clinically suspected patients showed annual variation with a range from 29...
February 13, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29451915/synchronic-historical-patterns-of-species-diversification-in-seasonal-aplocheiloid-killifishes-of-the-semi-arid-brazilian-caatinga
#13
Wilson J E M Costa, Pedro F Amorim, José Leonardo O Mattos
The Caatinga is the largest nucleus of seasonally dry tropical forests in South America, but little is known about the evolutionary history and biogeography of endemic organisms. Evolutionary diversification and distribution of terrestrial vertebrates endemic to the Caatinga have been explained by palaeogeographical Neogene episodes, mostly related to changes in the course of the São Francisco River, the largest river in the region. Our objective is to estimate the timing of divergence of two endemic groups of short-lived seasonal killifishes inhabiting all ecoregions of the Caatinga, testing the occurrence of synchronic events of spatial diversification in light of available data on regional palaeogeography...
2018: PloS One
https://www.readbyqxmd.com/read/29451888/ecogeography-of-teosinte
#14
José de Jesús Sánchez González, José Ariel Ruiz Corral, Guillermo Medina García, Gabriela Ramírez Ojeda, Lino De la Cruz Larios, James Brendan Holland, Roberto Miranda Medrano, Giovanni Emmanuel García Romero
Adaptation of crops to climate change has motivated an increasing interest in the potential value of novel traits from wild species; maize wild relatives, the teosintes, harbor traits that may be useful to maize breeding. To study the ecogeographic distribution of teosinte we constructed a robust database of 2363 teosinte occurrences from published sources for the period 1842-2016. A geographical information system integrating 216 environmental variables was created for Mexico and Central America and was used to characterize the environment of each teosinte occurrence site...
2018: PloS One
https://www.readbyqxmd.com/read/29451851/validation-of-a-pre-existed-safety-climate-scale-for-turkish-furniture-manufacturing-industry
#15
Kadri Cemil Akyuz, Ibrahim Yıldirim, Celal Gungor
Understanding the safety climate level is essential to implement a proactive safety program. The objective of this study is to explore the possibility of having a safety climate scale for the Turkish furniture manufacturing industry since there has not been any scale available. The questionnaire recruited 783 subjects. A confirmatory factor analysis (CFA) tested a pre-existed safety scale's fit to the industry. The CFA indicated that the structures of the model present a non-satisfactory fit with the data (χ 2 = 2,033...
February 16, 2018: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/29451808/implications-of-recent-research-on-microstructure-modifications-through-heat-related-processing-and-trait-alteration-to-bio-functions-molecular-thermal-stability-and-mobility-metabolic-characteristics-and-nutrition-in-cool-climate-cereal-grains-and-other-types
#16
Yuguang Ying, Huihua Zhang, Peiqiang Yu
The cutting-edge synchrotron radiation based and globar-sourced vibrational infrared microspectroscopy have recently been developed. These novel techniques are able to reveal structure features at cellular and molecular levels with the tested tissues being intact. However, to date, the advanced techniques are unfamiliar or unknown to food and feed scientists and have not been used to study the molecular structure changes in cool-climate cereal grain seeds and other types of bio-oil and bioenergy seeds. This article aims to provide some recent research in cool-climate cereal grains and other types of seeds on molecular structures and metabolic characteristics of carbohydrate and protein, and implication of microstructure modification through heat-related processing and trait alteration to bio-functions, molecular thermal stability and mobility, and nutrition with advanced molecular techniques- synchrotron radiation based and globar-sourced vibrational infrared microspectroscopy in the areas of (1) Inherent microstructure of cereal grain seeds; (2) The nutritional values of cereal grains; (3) Impact and modification of heat-related processing to cereal grain; (4) Conventional nutrition evaluation methodology; (5) Synchrotron radiation-based and globar-sourced vibrational (micro)-spectroscopy for molecular structure study and molecular thermal stability and mobility, and (6) Recent molecular spectroscopic technique applications in research on raw, traits altered and processed cool-climate cereal grains and other types of seeds...
February 16, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29451680/evaluating-the-kinetic-basis-of-plant-growth-from-organs-to-ecosystems
#17
REVIEW
Sean T Michaletz
Contents I. II. III. IV. V. VI. ORCID References SUMMARY: Understanding how temperature influences the scaling of physiological rates through levels of biological organization is critical for predicting plant responses to climate. Metabolic theory predicts that many rates increase exponentially with temperature following an activation energy (E) of 0.32 eV for photosynthesis. Here, I evaluate this prediction for net photosynthesis and organ, individual, and ecosystem growth. Observed E for photosynthesis varied widely but was not statistically different from predictions, while E for organs was greater than predicted, and E for individuals and ecosystems only weakly characterized temperature responses...
February 16, 2018: New Phytologist
https://www.readbyqxmd.com/read/29451659/environmental-factors-can-influence-dengue-reported-cases
#18
Marco Antonio F Carneiro, Beatriz da C A Alves, Flávia de Sousa Gehrke, José Nuno Domingues, Nelson Sá, Susana Paixão, João Figueiredo, Ana Ferreira, Cleonice Almeida, Amaury Machi, Eriane Savóia, Vânia Nascimento, Fernando Fonseca
INTRODUCTION: Global climate changes directly affect the natural environment and contribute to an increase in the transmission of diseases by vectors. Among these diseases, dengue is at the top of the list. The aim of our study was to understand the consequences of temporal variability of air temperature in the occurrence of dengue in an area comprising seven municipalities of the Greater São Paulo. METHOD: Characterization of a temporal trend of the disease in the region between 2010 and 2013 was performed through analysis of the notified number of dengue cases over this period...
November 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/29451606/can-climate-and-soil-conditions-change-the-morpho-anatomy-among-individuals-from-different-localities-a-case-study-in-aldama-grandiflora-asteraceae
#19
L F Muniz, A B Bombo, A L Filartiga, B Appezzato-da-Glória
Vegetative aerial organs are considerably more exposed to environmental conditions and can reflect the specific adaptations of plants to their local environment. Aldama grandiflora species are known to be widely distributed in Brazil; therefore, individuals from different populations of this species are thought to be exposed to different abiotic and biotic conditions. Several anatomical studies conducted on Brazilian Aldama species have mainly focused on the qualitative anatomical characters or traits of these species, but not on their quantitative traits...
February 15, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29451313/drivers-and-mechanisms-of-tree-mortality-in-moist-tropical-forests
#20
REVIEW
Nate McDowell, Craig D Allen, Kristina Anderson-Teixeira, Paulo Brando, Roel Brienen, Jeff Chambers, Brad Christoffersen, Stuart Davies, Chris Doughty, Alvaro Duque, Fernando Espirito-Santo, Rosie Fisher, Clarissa G Fontes, David Galbraith, Devin Goodsman, Charlotte Grossiord, Henrik Hartmann, Jennifer Holm, Daniel J Johnson, Abd Rahman Kassim, Michael Keller, Charlie Koven, Lara Kueppers, Tomo'omi Kumagai, Yadvinder Malhi, Sean M McMahon, Maurizio Mencuccini, Patrick Meir, Paul Moorcroft, Helene C Muller-Landau, Oliver L Phillips, Thomas Powell, Carlos A Sierra, John Sperry, Jeff Warren, Chonggang Xu, Xiangtao Xu
Tree mortality rates appear to be increasing in moist tropical forests (MTFs) with significant carbon cycle consequences. Here, we review the state of knowledge regarding MTF tree mortality, create a conceptual framework with testable hypotheses regarding the drivers, mechanisms and interactions that may underlie increasing MTF mortality rates, and identify the next steps for improved understanding and reduced prediction. Increasing mortality rates are associated with rising temperature and vapor pressure deficit, liana abundance, drought, wind events, fire and, possibly, CO 2 fertilization-induced increases in stand thinning or acceleration of trees reaching larger, more vulnerable heights...
February 16, 2018: New Phytologist
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