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https://www.readbyqxmd.com/read/28317479/climate-changes-and-human-health-a-review-of-the-effect-of-environmental-stressors-on-cardiovascular-diseases-across-epidemiology-and-biological-mechanisms
#1
Paolo Giorgini, Paolo Di Giosia, Marco Petrarca, Francesco Lattanzio, Cosimo Andrea Stamerra, Claudio Ferri
BACKGROUND: Climate change is rapidly affecting all the regions of our planet. The most relevant example is global warming, which impacts on the earth's ecosystems, threatening human health. Other effects include extreme variations in temperature and increases in air pollution. These events may negatively impact mortality and morbidity for cardiovascular diseases. METHODS: In this review, we discuss the main effects of climate changes on cardiovascular diseases, reporting the epidemiological evidences and the biological mechanisms linking climate change consequences to hypertension, diabetes, ischemic heart diseases, heart failure and stroke...
March 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28316341/ground-based-measurements-of-the-1-3-to-0-3-millimeter-spectrum-of-jupiter-and-saturn-and-their-detailed-calibration
#2
Juan R Pardo, Eugene Serabyn, Martina C Wiedner, Raphäel Moreno, Glenn Orton
One of the legacies of the now retired Caltech Submillimeter Observatory (CSO) is presented in this paper. We measured for the first time the emission of the giant planets Jupiter and Saturn across the 0.3 to 1.3 mm wavelength range using a Fourier Transform Spectrometer mounted on the 10.4-meter dish of the CSO at Mauna Kea, Hawaii, 4100 meters above sea level. A careful calibration, including the evaluation of the antenna performance over such a wide wavelength range and the removal of the Earth's atmosphere effects, has allowed the detection of broad absorption lines on those planets' atmospheres...
July 1, 2017: Icarus
https://www.readbyqxmd.com/read/28300128/earth-s-lost-history-of-planet-altering-eruptions-revealed
#3
Alexandra Witze
No abstract text is available yet for this article.
March 14, 2017: Nature
https://www.readbyqxmd.com/read/28295568/soil-ecotoxicology-in-latin-america-current-research-and-perspectives
#4
Júlia Carina Niemeyer, Sónia Chelinho, José Paulo Sousa
Soils from some Latin American (LA) countries support the highest biodiversity levels on the planet and, simultaneously, have some of the most serious environmental impacts attributed to both historical, and current agricultural practices and industrial activities. Soil contamination has resulted from intensive use of pesticides, extensive mining and other industrial activities, and uncontrolled management of waste within inappropriate regulatory frameworks. This manuscript presents an overview of the scientific research on soil ecotoxicology conducted in LA, summarizing the recent advances and highlighting the needs for further refinements in this research field...
March 11, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28286602/climate-change-allergy-and-asthma-and-the-role-of-tropical-forests
#5
REVIEW
Gennaro D'Amato, Carolina Vitale, Nelson Rosario, Herberto Josè Chong Neto, Deborah Carla Chong-Silva, Francisco Mendonça, Josè Perini, Loraine Landgraf, Dirceu Solé, Mario Sánchez-Borges, Ignacio Ansotegui, Maria D'Amato
BACKGROUND: Tropical forests cover less than 10 per cent of all land area (1.8 × 107 km(2)) and over half of the tropical-forest area (1.1 × 107 Km(2)) is represented by humid tropical forests (also called tropical rainforests). The Amazon basin contains the largest rainforest on Earth, almost 5.8 million km(2), and occupies about 40% of South America; more than 60% of the basin is located in Brazil and the rest in Bolivia, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela...
2017: World Allergy Organization Journal
https://www.readbyqxmd.com/read/28286360/biogeography-and-molecular-diversity-of-coral-symbionts-in-the-genus-symbiodinium-around-the-arabian-peninsula
#6
Maren Ziegler, Chatchanit Arif, John A Burt, Sergey Dobretsov, Cornelia Roder, Todd C LaJeunesse, Christian R Voolstra
AIM: Coral reefs rely on the symbiosis between scleractinian corals and intracellular, photosynthetic dinoflagellates of the genus Symbiodinium making the assessment of symbiont diversity critical to our understanding of ecological resilience of these ecosystems. This study characterizes Symbiodinium diversity around the Arabian Peninsula, which contains some of the most thermally diverse and understudied reefs on Earth. LOCATION: Shallow water coral reefs throughout the Red Sea (RS), Sea of Oman (SO), and Persian/Arabian Gulf (PAG)...
March 2017: Journal of Biogeography
https://www.readbyqxmd.com/read/28283498/dietary-guidelines-should-encourage-a-healthy-planet
#7
Anne Gulland
No abstract text is available yet for this article.
March 10, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28283047/pluto-and-the-platypus-an-odd-ball-and-an-odd-duck-on-classificatory-norms
#8
Matthew H Slater
Many astronomers seem to believe that we have discovered that Pluto is not a planet. I contest this assessment. Recent discoveries of trans-Neptunian Pluto-sized objects do not militate for Pluto's expulsion from the planets unless we have prior reason for not simply counting these newly-discovered objects among the planets. I argue that this classificatory controversy - which I compare to the controversy about the classification of the platypus - illustrates how our classificatory practices are laden with normative commitments of a distinctive kind...
February 2017: Studies in History and Philosophy of Science
https://www.readbyqxmd.com/read/28281687/albedo-feedbacks-to-future-climate-via-climate-change-impacts-on-dryland-biocrusts
#9
William A Rutherford, Thomas H Painter, Scott Ferrenberg, Jayne Belnap, Gregory S Okin, Cody Flagg, Sasha C Reed
Drylands represent the planet's largest terrestrial biome and evidence suggests these landscapes have large potential for creating feedbacks to future climate. Recent studies also indicate that dryland ecosystems are responding markedly to climate change. Biological soil crusts (biocrusts) ‒ soil surface communities of lichens, mosses, and/or cyanobacteria ‒ comprise up to 70% of dryland cover and help govern fundamental ecosystem functions, including soil stabilization and carbon uptake. Drylands are expected to experience significant changes in temperature and precipitation regimes, and such alterations may impact biocrust communities by promoting rapid mortality of foundational species...
March 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28270802/molecular-epidemiology-of-giardia-blastocystis-and-cryptosporidium-among-indigenous-children-from-the-colombian-amazon-basin
#10
Angie Sánchez, Marina Munoz, Natalia Gómez, Juan Tabares, Laura Segura, Ángela Salazar, Cristian Restrepo, Miguel Ruíz, Patricia Reyes, Yuchen Qian, Lihua Xiao, Myriam C López, Juan D Ramírez
The incidence and prevalence of intestinal parasites in children is most likely due to lack of natural or acquired resistance and differences in behavior and habits closely related to environmental and socioeconomic determinants. The most important protozoa that parasitize humans are Giardia, Entamoeba, Blastocystis, and Cryptosporidium. These parasites present wide intraspecific genetic diversity and subsequently classified into assemblages and subtypes. The Amazon basin is the largest in the world and is the fifth freshwater reserve on the planet...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28270154/pandemics-pathogenicity-and-changing-molecular-epidemiology-of-cholera-in-the-era-of-global-warming
#11
REVIEW
Fazle Rabbi Chowdhury, Zannatun Nur, Nazia Hassan, Lorenz von Seidlein, Susanna Dunachie
BACKGROUND: Vibrio cholerae, a Gram-negative, non-spore forming curved rod is found in diverse aquatic ecosystems around the planet. It is classified according to its major surface antigen into around 206 serogroups, of which O1 and O139 cause epidemic cholera. A recent spatial modelling technique estimated that around 2.86 million cholera cases occur globally every year, and of them approximately 95,000 die. About 1.3 billion people are currently at risk of infection from cholera. Meta-analysis and mathematical modelling have demonstrated that due to global warming the burden of vector-borne diseases like malaria, leishmaniasis, meningococcal meningitis, viral encephalitis, dengue and chikungunya will increase in the coming years in the tropics and beyond...
March 7, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28266537/mineral-surface-chemistry-and-nanoparticle-aggregation-control-membrane-self-assembly
#12
Nita Sahai, Hussein Kaddour, Punam Dalai, Ziqiu Wang, Garrett Bass, Min Gao
The self-assembly of lipid bilayer membranes to enclose functional biomolecules, thus defining a "protocell," was a seminal moment in the emergence of life on Earth and likely occurred at the micro-environment of the mineral-water interface. Mineral-lipid interactions are also relevant in biomedical, industrial and technological processes. Yet, no structure-activity relationships (SARs) have been identified to predict lipid self-assembly at mineral surfaces. Here we examined the influence of minerals on the self-assembly and survival of vesicles composed of single chain amphiphiles as model protocell membranes...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28259459/concentrical-coils-counter-current-chromatography-for-natural-products-isolation-salvia-miltiorrhiza-bunge-as-example
#13
Lihong Zhang, Yanyan Wang, Xiuyun Guo, Shihua Wu
Countercurrent chromatography (CCC) is an efficient separation technique without the solid support matrix, largely depending on the partition of two-immiscible liquid phases in the separation column. Since the helical coil planet centrifuge was invented in early 1970s by Yoichiro Ito, a series of coils columns, including spiral coils and conical coils columns have been developed for CCC separation. In this work, we introduced a new simple and efficient concentrical coils column for CCC separation, which was prepared by winding the whole polytetrafluoroethylene (PTFE) tube into the circular grooves from the rotation axis in the same direction...
March 31, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28257111/a-cubesat-payload-for-exoplanet-detection
#14
Marcella Iuzzolino, Domenico Accardo, Giancarlo Rufino, Ernesto Oliva, Andrea Tozzi, Pietro Schipani
The search for undiscovered planets outside the solar system is a scientific topic that is rapidly spreading into the astrophysical and engineering communities. In this framework, the design of an innovative payload to detect exoplanets from a nano-sized space platform, like a 3U cubesat, is presented. The selected detection method is photometric transit, and the payload aims to detect flux decrements down to ~0.01% with a precision of 12 ppm. The payload design is also aimed at false positive recognition. The solution consists of a four-facets pyramid on the top of the payload, to allow for measurement redundancy and low-resolution spectral dispersion of the star images...
March 2, 2017: Sensors
https://www.readbyqxmd.com/read/28252010/extra-metabolic-energy-use-and-the-rise-in-human-hyper-density
#15
Joseph R Burger, Vanessa P Weinberger, Pablo A Marquet
Humans, like all organisms, are subject to fundamental biophysical laws. Van Valen predicted that, because of zero-sum dynamics, all populations of all species in a given environment flux the same amount of energy on average. Damuth's 'energetic equivalence rule' supported Van Valen´s conjecture by showing a tradeoff between few big animals per area with high individual metabolic rates compared to abundant small species with low energy requirements. We use metabolic scaling theory to compare variation in densities and individual energy use in human societies to other land mammals...
March 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28249124/preventive-medicine-for-the-planet-and-its-peoples
#16
David J Hunter, Howard Frumkin, Ashish Jha
"Health is the human face of climate change" was the motivating idea behind the Climate and Health conference held at the Carter Center in Atlanta on Thursday, February 16, 2017. Originally scheduled by the Centers for Disease Control and Prevention (CDC), which then postponed it indefinitely, the..
March 1, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28248156/our-polluted-planet
#17
EDITORIAL
The Lancet
No abstract text is available yet for this article.
February 25, 2017: Lancet
https://www.readbyqxmd.com/read/28247094/the-giant-virus-finder-discovers-an-abundance-of-giant-viruses-in-the-antarctic-dry-valleys
#18
Csaba Kerepesi, Vince Grolmusz
Mimivirus was identified in 2003 from a biofilm of an industrial water-cooling tower in England. Later, numerous new giant viruses were found in oceans and freshwater habitats, some of them having 2,500 genes. We have demonstrated their likely presence in four soil samples taken from the Kutch Desert (Gujarat, India). Here we describe a bioinformatics work-flow, called the "Giant Virus Finder" that is capable of discovering the likely presence of the genomes of giant viruses in metagenomic shotgun-sequenced datasets...
February 28, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28246647/evaporative-fractionation-of-zinc-during-the-first-nuclear-detonation
#19
James M D Day, Frédéric Moynier, Alex P Meshik, Olga V Pradivtseva, Donald R Petit
Volatile element and compound abundances vary widely in planets and were set during the earliest stages of solar system evolution. Experiments or natural analogs approximating these early conditions are limited. Using silicate glass formed from arkosic sands during the first nuclear detonation at the Trinity test site, New Mexico, we show that the isotopes of zinc were fractionated during evaporation. The green silicate glasses, termed "trinitite," show +0.5 ± 0.1‰/atomic mass unit isotopic fractionation from ~200 m to within 10 m of ground zero of the detonation, corresponding to an α fractionation factor between 0...
February 2017: Science Advances
https://www.readbyqxmd.com/read/28230125/seven-temperate-terrestrial-planets-around-the-nearby-ultracool-dwarf-star-trappist-1
#20
Michaël Gillon, Amaury H M J Triaud, Brice-Olivier Demory, Emmanuël Jehin, Eric Agol, Katherine M Deck, Susan M Lederer, Julien de Wit, Artem Burdanov, James G Ingalls, Emeline Bolmont, Jeremy Leconte, Sean N Raymond, Franck Selsis, Martin Turbet, Khalid Barkaoui, Adam Burgasser, Matthew R Burleigh, Sean J Carey, Aleksander Chaushev, Chris M Copperwheat, Laetitia Delrez, Catarina S Fernandes, Daniel L Holdsworth, Enrico J Kotze, Valérie Van Grootel, Yaseen Almleaky, Zouhair Benkhaldoun, Pierre Magain, Didier Queloz
One aim of modern astronomy is to detect temperate, Earth-like exoplanets that are well suited for atmospheric characterization. Recently, three Earth-sized planets were detected that transit (that is, pass in front of) a star with a mass just eight per cent that of the Sun, located 12 parsecs away. The transiting configuration of these planets, combined with the Jupiter-like size of their host star-named TRAPPIST-1-makes possible in-depth studies of their atmospheric properties with present-day and future astronomical facilities...
February 22, 2017: Nature
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