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https://www.readbyqxmd.com/read/29793114/soil-types-influence-the-fate-of-antibiotic-resistant-bacteria-and-antibiotic-resistance-genes-following-the-land-application-of-sludge-composts
#1
Junya Zhang, Qianwen Sui, Juan Tong, Hui Zhong, Yawei Wang, Meixue Chen, Yuansong Wei
Sewage sludge was generally considered a significant reservoir of antibiotic resistance genes (ARGs) and could enter agricultural systems as fertilizer after composting. Soil types and the discrepancy of sludge composts could have influenced the fate of antibiotic-resistant bacteria (ARB) following the land application of sludge composts, which deserved to be clarified. Thus, the fate of ARB and ARGs following the land application of three types of sludge composts (A, B, and C) to three different soils (red soil, loess, and black soil) was investigated...
May 21, 2018: Environment International
https://www.readbyqxmd.com/read/29793079/shifts-in-wind-energy-potential-following-land-use-driven-vegetation-dynamics-in-complex-terrain
#2
Jiannong Fang, Alexander Peringer, Mihai-Sorin Stupariu, Ileana Pǎtru-Stupariu, Alexandre Buttler, Francois Golay, Fernando Porté-Agel
Many mountainous regions with high wind energy potential are characterized by multi-scale variabilities of vegetation in both spatial and time dimensions, which strongly affect the spatial distribution of wind resource and its time evolution. To this end, we developed a coupled interdisciplinary modeling framework capable of assessing the shifts in wind energy potential following land-use driven vegetation dynamics in complex mountain terrain. It was applied to a case study area in the Romanian Carpathians...
May 21, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29793052/title-lhp1-interacts-with-atrx-through-plant-specific-domains-at-specific-loci-targeted-by-prc2
#3
Haifeng Wang, Danhua Jiang, Elin Axelsson, Zdravko J Lorković, Sean Montgomery, Sarah Holec, Bas J G E Pieters, Abbas H K Al Temimi, Jasmin Mecinović, Frédéric Berger
Heterochromatin Protein 1 (HP1) is a major regulator of chromatin structure and function. In animals, the network of proteins interacting with HP1 is mainly associated with constitutive heterochromatin marked by H3K9me3. HP1 physically interacts with the putative orthologue of the SNF2 chromatin remodeler ATRX, which controls deposition of the histone variant H3.3 in mammals. In Arabidopsis thaliana, we show that the orthologue of ATRX participates in H3.3 deposition and characterize the function of conserved domains of plant ATRX...
May 21, 2018: Molecular Plant
https://www.readbyqxmd.com/read/29793024/sedimentary-record-of-plutonium-in-the-north-yellow-sea-and-the-response-to-catchment-environmental-changes-of-inflow-rivers
#4
Yihong Xu, Shaoming Pan, Jianhua Gao, Xiaolin Hou, Yongfu Ma, Yongpei Hao
Plutonium (Pu) isotopes were first determined in surface and core sediment samples collected from the northern North Yellow Sea (NYS) to elucidate their source terms and deposition process as well as the response to catchment environmental changes of inflow rivers. 240 Pu/239 Pu atom ratios in all sediments showed the typical global fallout value of ∼0.18 without any influences from the nuclear weapons tests conducted recently in the North Korea or early in the Pacific Proving Ground. The large variation of 239+240 Pu activities (0...
May 18, 2018: Chemosphere
https://www.readbyqxmd.com/read/29792758/investigation-of-a-large-scale-gopher-tortoise-gopherus-polyphemus-mortality-event-on-a-public-conservation-land-in-florida
#5
Michelina C Dziadzio, Eric R Sievers, Deborah Burr
In August 2015, a gopher tortoise ( Gopherus polyphemus) mortality event was documented on a 40-ha area of Lake Louisa State Park, Lake County, Florida, USA. To quantify the extent of the die-off and the seroprevalence of Mycoplasma agassizii and Mycoplasma testudineum, two causative agents of mycoplasmal upper respiratory tract disease (URTD), we conducted a tortoise shell survey on 25 and 26 August 2015 and collected blood samples from live tortoises on 2-4 September 2015 and 1-13 August 2016 within the area of documented mortality...
May 24, 2018: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/29791882/simulation-based-assessment-of-the-impact-of-fertiliser-and-herbicide-application-on-freshwater-ecosystems-at-the-three-gorges-reservoir-in-china
#6
Björn Scholz-Starke, Li Bo, Andreas Holbach, Stefan Norra, Tilman Floehr, Henner Hollert, Martina Roß-Nickoll, Andreas Schäffer, Richard Ottermanns
Dams have profound impacts on river ecosystems, amongst them inundation of land, altered dynamics of the water body or uprising reservoir backwaters influencing tributary or upstream river sections. Along the outstandingly ecologically important Yangtze River in China, the Three Gorges Reservoir (TGR) is the largest project, covering an area of 1080 km2 . From the beginning, the dam-project came in for criticism on increasing environmental risks due to sub-merging former industrial and urban areas. We simulated dynamics of biotic and abiotic components of the TGR ecosystem (trophic guilds of aquatic organisms, hydrodynamics, nutrients), as well as the behaviour of the herbicidal substance propanil and its metabolites 3,4-Dichloroaniline (DCA) and 3,3',4,4'-tetrachloroazoxybenzene (TCAB)...
May 20, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29791252/immediate-effects-of-a-distal-gait-modification-during-stair-descent-in-individuals-with-patellofemoral-pain
#7
Sandra Aliberti, Bruno Mezêncio, Alberto Carlos Amadio, Julio Cerca Serrão, Luis Mochizuki
BACKGROUND: Knee pain during stair managing is a common complaint among individuals with PFP and can negatively affect their activities of daily living. Gait modification programs can be used to decrease patellofemoral pain. Immediate effects of a stair descent distal gait modification session that intended to emphasize forefoot landing during stair descent are described in this study. OBJECTIVES: To analyze the immediate effects of a distal gait modification session on lower extremity movements and intensity of pain in women with patellofemoral pain during stair descent...
May 23, 2018: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29790721/techniques-and-outcomes-of-secondary-endovascular-repair-for-post-dissection-taa-taaa
#8
Pablo Marques De Marino, Kyriakos Oikonomou, Eric L Verhoeven, Athanasios Katsargyris
Post-dissection aortic aneurysms (PDAA) affect 20-40% of patients with aortic dissection. Open repair remains the first line therapy of PDAA, but is still associated with high mortality and morbidity rates. Endovascular repair is increasingly being used as a less invasive treatment option. Thoracic endovascular aneurysm repair (TEVAR) covering only the proximal entry tear has proven to be insufficient in most patients with chronic PDAA and has a limited role only for PDAA with distal sealing zone in the thoracic aorta...
May 23, 2018: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29790617/plant-growth-chamber-design-for-subambient-pco-2-and-%C3%AE-13-c-studies
#9
William M Hagopian, Brian A Schubert, Robert A Graper, A Hope Jahren
RATIONALE: Subambient pCO2 has persisted across the major Phanerozoic ice ages, including the entire late Cenozoic (~30 Ma to present). Stable isotope analysis of plant-derived organic matter is used to infer changes in pCO2 and climate in the geologic past, but a growth chamber that can precisely control environmental conditions, including pCO2 and δ13 C value of CO2 (δ13 CCO2 ) at subambient pCO2 , is lacking. METHODS: We designed and built five identical chambers specifically for plant growth under stable subambient pCO2 (~100 to 400 ppm) and δ13 CCO2 conditions...
May 23, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/29790246/a-review-of-predation-as-a-limiting-factor-for-bird-populations-in-mesopredator-rich-landscapes-a-case-study-of-the-uk
#10
Staffan Roos, Jennifer Smart, David W Gibbons, Jeremy D Wilson
The impact of increasing vertebrate predator numbers on bird populations is widely debated among the general public, game managers and conservationists across Europe. However, there are few systematic reviews of whether predation limits the population sizes of European bird species. Views on the impacts of predation are particularly polarised in the UK, probably because the UK has a globally exceptional culture of intensive, high-yield gamebird management where predator removal is the norm. In addition, most apex predators have been exterminated or much depleted in numbers, contributing to a widely held perception that the UK has high numbers of mesopredators...
May 22, 2018: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/29790203/land-use-trade-offs-between-tree-biodiversity-and-crop-production-in-the-atlantic-forest
#11
Vinícius Marcilio-Silva, Márcia C M Marques, Jeannine Cavender-Bares
Trade-offs in ecosystem services (ES) have received increasing attention because provisioning services often come at the expense of biodiversity loss. When land-use patterns are not maximally efficient often provisioning services such as crop production can increase without sacrificing biodiversity. The Atlantic Forest (AF) encompasses Dense, Mixed and Seasonal forests and is a hotspot for biodiversity conservation, given its high levels of endemism and anthropogenic threat. Examining trade-offs between biodiversity and crop production in the AF can provide insights into land-use management decisions...
May 23, 2018: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/29789963/experimental-arid-land-afforestation-in-central-anatolia-turkey
#12
Oktay Yildiz, Ernaz Altundağ, Bilal Çetin, Ş Teoman Güner, Murat Sarginci, Bulent Toprak
The afforestation of arid lands faces many challenges, and perhaps the most important key for success is choosing one or more species that are adapted well for local environmental conditions. We explored species that would be suitable for the steppe region of Central Anatolia. Intensive site preparation included ripping the subsoil (to 80 cm) and plowing the upper soil before planting seedlings of Elaeagnus angustifolia, Robinia pseudoacacia, Fraxinus angustifolia, and Pinus nigra were used as tree species...
May 22, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29789670/noise-estimation-model-development-using-high-resolution-transportation-and-land-use-regression
#13
Omer Harouvi, Eran Ben-Elia, Roni Factor, Kees de Hoogh, Itai Kloog
Noise pollution is a common phenomenon of the 21st century. Noise prediction models tend to estimate noise levels mainly from road traffic sources (such as cars, public transportation etc.). This paper describes the adoption of land use regression (LUR) modeling methodology to assess noise pollution in two periods of the day (rush hour and off-peak), in two major cities in Israel (Tel Aviv and Beer Sheva). For both rush hour and off-peak times, 20 min short term measurements were used to develop a LUR noise estimation model...
May 23, 2018: Journal of Exposure Science & Environmental Epidemiology
https://www.readbyqxmd.com/read/29789462/identifying-the-driving-factors-of-water-quality-in-a-sub-watershed-of-the-republican-river-basin-kansas-usa
#14
Morgen W V Burke, Mojtaba Shahabi, Yeqian Xu, Haochi Zheng, Xiaodong Zhang, Jeffrey VanLooy
Studies have shown that the agricultural expansion and land use changes in the Midwest of the U.S. are major drivers for increased nonpoint source pollution throughout the regional river systems. In this study, we empirically examined the relationship of planted area and production of three dominant crops with nitrate flux in the Republican River, Kansas, a sub-watershed of Mississippi River Basin. Our results show that land use in the region could not explain the observed changes in nitrate flux in the river...
May 22, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29789436/low-vulnerability-to-xylem-embolism-in-leaves-and-stems-of-north-american-oaks
#15
Robert Paul Skelton, Todd E Dawson, Sally E Thompson, Yuzheng Shen, Andrew P Weitz, David Ackerly
Although recent findings suggest that xylem embolism represents a significant, drought-induced damaging process in land plants, substantial debate surrounds the capacity of long-vesselled, ring-porous species to resist embolism. We investigated whether recent methodological developments could help resolve this controversy within Quercus, a long-vesselled, ring-porous temperate angiosperm genus, and shed further light on the importance of xylem vulnerability to embolism as an indicator of drought tolerance. We used the optical technique to quantify leaf and stem xylem vulnerability to embolism of eight Quercus species from the Mediterranean-type climate region of California, USA, to examine absolute measures of resistance to embolism as well as any potential hydraulic segmentation between tissue types...
May 22, 2018: Plant Physiology
https://www.readbyqxmd.com/read/29788551/defining-a-land-boundary-for-sustainable-livestock-consumption
#16
Hannah H E Van Zanten, Mario Herrero, Ollie Van Hal, Elin Röös, Adrian Muller, Tara Garnett, Pierre J Gerber, Christian Schader, Imke J M De Boer
The need for more sustainable production and consumption of animal-source food is central to the achievement of the sustainable development goals: within this context, wise use of land is a core challenge and concern. A key question in feeding the future world is: how much animal-source food should we eat? We demonstrate that livestock raised under the circular economy concept could provide a significant, non-negligible part (9-23g/per capita) of our daily protein needs (~50-60 g/per capita). This livestock then would not consume human-edible biomass, such as grains, but mainly convert leftovers from arable land and grass resources into valuable food, implying that production of livestock feed is largely decoupled from arable land...
May 22, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29788412/treatment-of-mal-de-debarquement-syndrome-in-a-deployed-environment
#17
Stephanie M Schenk, Jacklyn M Wagner, Jarrod A Miller, Tracey M Lyons-White, Emilee C Venn, Michael D April, Brit Long, Steven G Schauer, Joshua J Oliver
We report the case of a 26-year-old Caucasian female with persistent sensations of forward and reverse movement with spontaneous onset. This worsened over 4 wk. The patient reported an episode of these symptoms 5 mo prior, which lasted for 3 mo before improving. Our case details the treatment of Mal de Debarquement syndrome, or Disembarkment Syndrome, in a deployed military environment. Mal de Debarquement was a term originally coined to describe the persistent sensation of rocking back and forth after disembarking a boat and returning to land...
May 18, 2018: Military Medicine
https://www.readbyqxmd.com/read/29788250/comparative-genomics-reveals-thousands-of-novel-chemosensory-genes-and-massive-changes-in-chemoreceptor-repertories-across-chelicerates
#18
Joel Vizueta, Julio Rozas, Alejandro Sánchez-Gracia
Chemoreception is a widespread biological function that is essential for the survival, reproduction, and social communication of animals. Though the molecular mechanisms underlying chemoreception are relatively well known in insects, they are poorly studied in the other major arthropod lineages. Current availability of a number of chelicerate genomes constitutes a great opportunity to better characterize gene families involved in this important function in a lineage that emerged and colonized land independently of insects...
April 1, 2018: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29788193/ocular-toxoplasmosis-adverse-reactions-to-treatment-in-a-brazilian-cohort
#19
Lusiele Guaraldo, Bianca Balzano de la Fuente Villar, Nicolle Marins Gomes Durão, Virgínia Clare Louro, Marcel de Souza Borges Quintana, André Luiz Land Curi, Elizabeth Souza Neves
Background: The purpose of this study was to estimate the frequency and describe the adverse drug reactions (ADRs) associated with the classic treatment of ocular toxoplasmosis (OT), namely sulfadiazine, pyrimethamine, corticosteroids and folinic acid. Methods: We performed a descriptive study of a prospective cohort of patients with OT treated with the classic therapy. Data were collected during medical consultations and treatment. Results: Of the 147 patients studied, 85% developed one or more ADR...
May 19, 2018: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29787978/persistence-of-bacterial-pathogens-antibiotic-resistance-genes-and-enterococci-in-tidal-creek-tributaries
#20
Chance E Jones, Anthony Maddox, Dorset Hurley, Andrei L Barkovskii
Intertidal creeks form the primary hydrologic link between estuaries and land-based activities on barrier islands. Fecal indicators Enterococcus spp. (Entero1), pathogens Shigella spp. (ipaH), Salmonella spp. (invA), E. coli of EHEC/EPEC groups (eaeA), E. coli of EAEC, EIEC, and UPEC groups (set1B), E. coli of STEC group (stx1); and tetracycline resistance genes (tet(B), tet(C), tet(D), tet(E), tet(K), tet(Q), tet(W), and tet(X); TRG) were detected in the headwater of Oakdale Creek (Sapelo Island, GA) receiving runoffs from Hog Hammock village...
May 19, 2018: Environmental Pollution
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