keyword
MENU ▼
Read by QxMD icon Read
search

Climate change

keyword
https://www.readbyqxmd.com/read/28922744/sugar-transporters-in-plants-new-insights-and-discoveries
#1
Benjamin T Julius, Kristen A Leach, Thu M Tran, Rachel A Mertz, David M Braun
Carbohydrate partitioning is the process of carbon assimilation and distribution from source tissues, such as leaves, to sink tissues, such as stems, roots and seeds. Sucrose, the primary carbohydrate transported long distance in many plant species, is loaded into the phloem and unloaded into distal sink tissues. However, many factors, both genetic and environmental, influence sucrose metabolism and transport. Therefore, understanding the function and regulation of sugar transporters and sucrose metabolic enzymes is key to improving agriculture...
September 1, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28922515/increased-resource-use-efficiency-amplifies-positive-response-of-aquatic-primary-production-to-experimental-warming
#2
James M Hood, Jonathan P Benstead, Wyatt F Cross, Alexander D Huryn, Philip W Johnson, Gísli M Gíslason, James R Junker, Daniel Nelson, Jón S Ólafsson, Chau Tran
Climate warming is affecting the structure and function of river ecosystems, including their role in transforming and transporting carbon (C), nitrogen (N), and phosphorus (P). Predicting how river ecosystems respond to warming has been hindered by a dearth of information about how otherwise well-studied physiological responses to temperature scale from organismal to ecosystem levels. We conducted an ecosystem-level temperature manipulation to quantify how coupling of stream ecosystem metabolism and nutrient uptake responded to a realistic warming scenario...
September 18, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28921608/moral-bioenhancement-and-agential-risks-good-and-bad-outcomes
#3
Phil Torres
In Unfit for the Future, Ingmar Persson and Julian Savulescu argue that our collective existetial predicment is unprecedentedly dangerous due to climate change and terrorism. Given these global risks to human prosperity and survival, Persson and Savulescu argue that we should explore the radical possibility of moral bioenhancement in addition to cognitive enhancement. In this article, I argue that moral bioenhancements could nontrivially exacerbate the threat posed by certain kinds of malicious agents, while reducing the threat of other kinds...
September 18, 2017: Bioethics
https://www.readbyqxmd.com/read/28921005/barriers-and-solutions-to-conducting-large-international-interdisciplinary-research-projects
#4
Erin C Pischke, Jessie L Knowlton, Colin C Phifer, Jose Gutierrez Lopez, Tamara S Propato, Amarella Eastmond, Tatiana Martins de Souza, Mark Kuhlberg, Valentin Picasso Risso, Santiago R Veron, Carlos Garcia, Marta Chiappe, Kathleen E Halvorsen
Global environmental problems such as climate change are not bounded by national borders or scientific disciplines, and therefore require international, interdisciplinary teamwork to develop understandings of their causes and solutions. Interdisciplinary scientific work is difficult enough, but these challenges are often magnified when teams also work across national boundaries. The literature on the challenges of interdisciplinary research is extensive. However, research on international, interdisciplinary teams is nearly non-existent...
September 18, 2017: Environmental Management
https://www.readbyqxmd.com/read/28921004/using-paleoecology-to-inform-land-management-as-climates-change-an-example-from-an-oak-savanna-ecosystem
#5
Jessica D Spencer, Andrea Brunelle, Tim Hepola
Oak savanna, a transitional ecosystem between open prairie and dense oak forest, was once widespread in Minnesota. Upon European settlement much of the oak savanna was destroyed. Recently, efforts to restore this ecosystem have increased and often include the reintroduction of fire. Though fire is known to serve an important role within oak savannas, there are currently few studies which address fire regimes on timescales longer than the last century. This research presents a paleoecological history of Sherburne National Wildlife Refuge (SNWR) in MN, USA, spanning the last ~8000 years...
September 18, 2017: Environmental Management
https://www.readbyqxmd.com/read/28920410/effect-of-seasonal-changes-on-fertility-parameters-of-holstein-dairy-cow-in-subtropical-climate-of-taiwan
#6
Wen Bor Liu, Huo Cheng Peh, Chien Kai Wang, Mancoba Christopher Mangwe, Chih Feng Chen, Hsin I Chiang
Objective: The purpose of this retrospective study was to investigate the relationship between temperature-humidity index (THI), season, and conception rate (CR) of Holstein cows in central Taiwan. Methods: The mean performance and number of observations were statistically evaluated for various parameters, including age at first service, number of days open, gestation length, CR, and calving interval for different parities. Results: The results indicate that the mean age at first service was 493...
September 18, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28920141/effects-of-moso-bamboo-phyllostachys-edulis-invasions-on-soil-nitrogen-cycles-depend-on-invasion-stage-and-warming
#7
Zhenzhen Li, Ling Zhang, Bangliang Deng, Yuanqiu Liu, Fanqian Kong, Guoxian Huang, Qin Zou, Qian Liu, Xiaomin Guo, Yanqiu Fu, Dekui Niu, Evan Siemann
Plant invasions may alter soil nutrient cycling due to differences in physiological traits between the invader and species they displace as well as differences in responses to anthropogenic factors such as nitrogen deposition and warming. Moso bamboo is expanding its range rapidly around the world, displacing diverse forests. In addition, near expansion fronts where invasions are patchy, moso bamboo and other species each contribute soil inputs. Nitrogen transformations and greenhouse gas (GHG) emissions are important processes associated with nutrient availability and climate change that may be impacted by bamboo invasions...
September 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28920090/reconstructing-coral-calcification-fluid-dissolved-inorganic-carbon-chemistry-from-skeletal-boron-an-exploration-of-potential-controls-on-coral-aragonite-b-ca
#8
Nicola Allison
The boron geochemistry of coral skeletons reflects the dissolved inorganic carbon (DIC) chemistry of the calcification fluid from which the skeletons precipitates and may be a valuable tool to investigate the effects of climate change on coral calcification. In this paper I calculate the predicted B/Ca of aragonite precipitating from seawater based fluids as a function of pH, [DIC] and [Ca(2+)]. I consider how different co-precipitating DIC species affect aragonite B/Ca and also estimate the impact of variations in the B(OH)4(-)/co-precipitating DIC aragonite partition coefficient (KD), which may be associated with changes in the DIC and Ca(2+) chemistry of the calcification fluid...
August 2017: Heliyon
https://www.readbyqxmd.com/read/28919151/the-combined-effects-of-ocean-warming-and-acidification-on-shallow-water-meiofaunal-assemblages
#9
Matthew R Lee, Rodrigo Torres, Patricio H Manríquez
Climate change due to increased anthropogenic CO2 in the atmosphere is causing an increase in seawater temperatures referred to as ocean warming and a decrease in seawater pH, referred to as ocean acidification. The meiofauna play an important role in the ecology of marine ecosystems and the functions they provide. Using microcosms, meiofaunal assemblages were exposed to two temperatures (15 and 19 °C) and two pHs (pCO2 of 400 and 1000 ppm), both individually and in combination, for a period of 90 days. The hypothesis that increased temperature will increase meiofaunal abundance was not supported...
September 8, 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/28918958/the-association-for-academic-surgery-2011-present-standing-on-the-shoulders-of-giants
#10
Allison L Speer, Lillian S Kao
The Association for Academic Surgery (AAS), which is a society dedicated to inspiring and developing young academic surgeons, recently celebrated its 50th anniversary. Each decade since its inception has seen incredible growth. This most recent decade, from 2011 to present, has been characterized by: (1) reevaluation and clarification of the society's vision, mission, core values and organizational structure; (2) diversification of the membership and leadership; (3) support for international outreach and global surgery research; (4) expansion of its impact through social media; and (5) adaptability to a changing political climate...
September 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28918622/emission-changes-dwarf-the-influence-of-feeding-habits-on-temporal-trends-of-per-and-polyfluoroalkyl-substances-in-two-arctic-top-predators
#11
Heli Routti, Jon Aars, Eva Fuglei, Linda Hanssen, Karen Lone, Anuschka Polder, Åshild Ø Pedersen, Sabrina Tartu, Jeffrey M Welker, Nigel G Yoccoz
We monitored concentrations of per- and polyfluoroalkyl substances (PFASs) in relation to climate-associated changes in feeding habits and food availability in polar bears (Ursus maritimus) and arctic foxes (Vulpes lagopus) (192 plasma and 113 liver samples, respectively) sampled from Svalbard, Norway, during 1997-2014. PFASs concentrations became greater with increasing dietary trophic level, as bears and foxes consumed more marine as opposed to terrestrial food, and as the availability of sea ice habitat increased...
September 18, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28918270/corrigendum-to-simulating-soil-organic-carbon-stock-as-affected-by-land-cover-change-and-climate-change-hyrcanian-forests-northern-iran-sci-total-environ-599-600-2017-1646-1657
#12
Azam Soleimani, Seyed Mohsen Hosseini, Ali Reza Massah Bavani, Mostafa Jafari, Rosa Francaviglia
No abstract text is available yet for this article.
September 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28917896/environmental-and-technical-feasibility-of-cellulose-nanocrystal-manufacturing-from-sugarcane-bagasse
#13
Rosineide Miranda Leão, Patrícia Câmara Miléo, João M L L Maia, Sandra Maria Luz
The environmental and technical feasibility of cellulose nanocrystal production from sugarcane bagasse fibers was evaluated. First, the life cycle assessment (LCA) is presented as a methodology to investigate the most feasible form of obtainment. The environmental impacts regarding climate change and water footprint were evaluated considering a gate-to-gate process and a functional unit of 1kg. The inventory data encompassed sugarcane plantation and pretreatment, bleaching and hydrolysis for bagasse generation...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917174/potential-effects-of-changes-in-climate-and-emissions-on-distribution-and-fate-of-perfluorooctane-sulfonate-in-the-bohai-rim-china
#14
Chao Su, Shuai Song, Yonglong Lu, Shijie Liu, John P Giesy, Deliang Chen, Alan Jenkins, Andrew J Sweetman, Baninla Yvette
Climate change and emissions rates of contaminants are expected to affect distribution and fate of Persistent Organic Pollutants (POPs) in the environment, however, studies on these combined factors are rare. In this study, Perfluorooctane Sulfonate (PFOS) is used as an example to assess how those two factors synthetically affect fate and disposition of POPs in the Bohai Rim of China by using the Berkeley-Trent-Urban-Rural (BETR-Urban-Rural) model. We set up three climate change scenarios and four emission scenarios to conduct the simulations...
September 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28917170/how-do-climatic-and-management-factors-affect-agricultural-ecosystem-services-a-case-study-in-the-agro-pastoral-transitional-zone-of-northern-china
#15
Jianmin Qiao, Deyong Yu, Jianguo Wu
Agricultural ecosystem management needs to ensure food production and minimize soil erosion and nitrogen (N) leaching under climate change and increasingly intensive human activity. Thus, the mechanisms through which climatic and management factors affect crop production, soil erosion, and N leaching must be understood in order to ensure food security and sustainable agricultural development. In this study, we adopted the GIS-based Environmental Policy Integrated Climate (EPIC) model to simulate crop production, soil erosion, and N leaching, and used a partial least squares regression model to evaluate the contributions of climate variables (solar radiation, precipitation, wind speed, relative humidity, and maximum and minimum temperature) and management factors (irrigation, fertilization, and crop cultivation area) on agricultural ecosystem services (AES) in the agro-pastoral transitional zone (APTZ) of northern China...
September 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28917166/omi-satellite-observed-formaldehyde-column-from-2006-to-2015-over-xishuangbanna-southwest-china-and-validation-using-ground-based-zenith-sky-doas
#16
Rui Liu, Tao Feng, Shanshan Wang, Chanzhen Shi, Yanlin Guo, Jialiang Nan, Yun Deng, Bin Zhou
Formaldehyde (HCHO) provides a proxy to reveal the isoprene and biogenic volatile organic compounds emission which plays important roles in atmospheric chemical process and climate change. The ground-based observation with zenith-sky DOAS is carried out in order to validate the HCHO columns from OMI. It has a good correlation of 0.71678 between the HCHO columns from two sources. Then we use the OMI HCHO columns from January 2006 to December 2015 to indicate the interannual variation and spatial distribution in Xishuangbanna...
September 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28916375/bacterial-community-in-ancient-permafrost-alluvium-at-the-mammoth-mountain-eastern-siberia
#17
Anatoli Brouchkov, Marsel Kabilov, Svetlana Filippova, Olga Baturina, Victor Rogov, Valery Galchenko, Andrey Mulyukin, Oksana Fursova, Gennady Pogorelko
Permanently frozen (approx. 3.5Ma) alluvial Neogene sediments exposed in the Aldan river valley at the Mammoth Mountain (Eastern Siberia) are unique, ancient, and poorly studied permafrost environments. So far, the structure of the indigenous bacterial community has remained unknown. Use of 16S metagenomic analysis with total DNA isolation using DNA Spin Kit for Soil (MO-Bio) and QIAamp DNA Stool Mini Kit (Qiagen) has revealed the major and minor bacterial lineages in the permafrost alluvium sediments. In sum, 61 Operational Taxonomic Units (OTUs) with 31,239 reads (Qiagen kit) and 15,404 reads (Mo-Bio kit) could be assigned to the known taxa...
September 12, 2017: Gene
https://www.readbyqxmd.com/read/28915935/secondary-ion-mass-spectrometry-the-application-in-the-analysis-of-atmospheric-particulate-matter
#18
REVIEW
Di Huang, Xin Hua, Guang-Li Xiu, Yong-Jie Zheng, Xiao-Ying Yu, Yi-Tao Long
Currently, considerable attention has been paid to atmospheric particulate matter (PM) investigation due to its importance in human health and global climate change. Surface characterization, single particle analysis and depth profiling of PM is important for a better understanding of its formation processes and predicting its impact on the environment and human being. Secondary ion mass spectrometry (SIMS) is a surface technique with high surface sensitivity, high spatial resolution chemical imaging and unique depth profiling capabilities...
October 9, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28915877/vole-abundance-and-reindeer-carcasses-determine-breeding-activity-of-arctic-foxes-in-low-arctic-yamal-russia
#19
Dorothee Ehrich, Maite Cerezo, Anna Y Rodnikova, Natalya A Sokolova, Eva Fuglei, Victor G Shtro, Aleksandr A Sokolov
BACKGROUND: High latitude ecosystems are at present changing rapidly under the influence of climate warming, and specialized Arctic species at the southern margin of the Arctic may be particularly affected. The Arctic fox (Vulpes lagopus), a small mammalian predator endemic to northern tundra areas, is able to exploit different resources in the context of varying tundra ecosystems. Although generally widespread, it is critically endangered in subarctic Fennoscandia, where a fading out of the characteristic lemming cycles and competition with abundant red foxes have been identified as main threats...
September 16, 2017: BMC Ecology
https://www.readbyqxmd.com/read/28915548/a-spatio-temporal-statistical-model-of-maximum-daily-river-temperatures-to-inform-the-management-of-scotland-s-atlantic-salmon-rivers-under-climate-change
#20
Faye L Jackson, Robert J Fryer, David M Hannah, Colin P Millar, Iain A Malcolm
The thermal suitability of riverine habitats for cold water adapted species may be reduced under climate change. Riparian tree planting is a practical climate change mitigation measure, but it is often unclear where to focus effort for maximum benefit. Recent developments in data collection, monitoring and statistical methods have facilitated the development of increasingly sophisticated river temperature models capable of predicting spatial variability at large scales appropriate to management. In parallel, improvements in temporal river temperature models have increased the accuracy of temperature predictions at individual sites...
September 14, 2017: Science of the Total Environment
keyword
keyword
24280
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"