keyword
MENU ▼
Read by QxMD icon Read
search

Landing

keyword
https://www.readbyqxmd.com/read/28550729/bioaccessibility-and-size-distribution-of-metals-in-road-dust-and-roadside-soils-along-a-peri-urban-transect
#1
Elio Padoan, Chiara Romè, Franco Ajmone-Marsan
Road dust (RD), together with surface soils, is recognized as one of the main sinks of pollutants in urban environments. Over the last years, many studies have focused on total and bioaccessible concentrations while few have assessed the bioaccessibility of size-fractionated elements in RD. Therefore, the distribution and bioaccessibility of Fe, Mn, Cd, Cr, Cu, Ni, Pb, Sb and Zn in size fractions of RD and roadside soils (<2.5μm, 2.5-10μm and 10-200μm) have been studied using aqua regia extraction and the Simple Bioaccessibility Extraction Test...
May 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28550630/the-effects-of-different-sewage-sludge-amendment-rates-on-the-heavy-metal-bioaccumulation-growth-and-biomass-of-cucumbers-cucumis-sativus-l
#2
Ebrahem M Eid, Sulaiman A Alrumman, Ahmed F El-Bebany, Abd El-Latif Hesham, Mostafa A Taher, Khaled F Fawy
When sewage sludge is incorrectly applied, it may adversely impact agro-system productivity. Thus, this study addresses the reaction of Cucumis sativus L. (cucumber) to different amendment rates (0, 10, 20, 30, 40 and 50 g kg(-1)) of sewage sludge in a greenhouse pot experiment, in which the plant growth, heavy metal uptake and biomass were evaluated. A randomized complete block design with six treatments and six replications was used as the experimental design. The soil electrical conductivity, organic matter and Cr, Fe, Zn and Ni concentrations increased, but the soil pH decreased in response to the sewage sludge applications...
May 26, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28550281/decadal-variations-in-eastern-canada-s-taiga-wood-biomass-production-forced-by-ocean-atmosphere-interactions
#3
Etienne Boucher, Antoine Nicault, Dominique Arseneault, Yves Bégin, Mehdi Pasha Karami
Across Eastern Canada (EC), taiga forests represent an important carbon reservoir, but the extent to which climate variability affects this ecosystem over decades remains uncertain. Here, we analyze an extensive network of black spruce (Picea mariana Mill.) ring width and wood density measurements and provide new evidence that wood biomass production is influenced by large-scale, internal ocean-atmosphere processes. We show that while black spruce wood biomass production is primarily governed by growing season temperatures, the Atlantic ocean conveys heat from the subtropics and influences the decadal persistence in taiga forests productivity...
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28549598/twist-limits-for-late-twisting-double-somersaults-on-trampoline
#4
M R Yeadon, M J Hiley
An angle-driven computer simulation model of aerial movement was used to determine the maximum amount of twist that could be produced in the second somersault of a double somersault on trampoline using asymmetrical movements of the arms and hips. Lower bounds were placed on the durations of arm and hip angle changes based on performances of a world trampoline champion whose inertia parameters were used in the simulations. The limiting movements were identified as the largest possible odd number of half twists for forward somersaulting takeoffs and even number of half twists for backward takeoffs...
May 16, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28549320/light-emission-miracle-in-the-sea-and-preeminent-applications-of-bioluminescence-in-recent-new-biotechnology
#5
Sana Sharifian, Ahmad Homaei, Roohullah Hemmati, Khosro Khajeh
Bioluminescence is referred to the light emission by a living organism due to a specific biochemical reaction. This interesting feature of the organisms could highly influences behavioral and ecosystem dynamics. Luminescence, mostly observed in marine species, is generally higher in deep-living genera than in benthic or shallow organisms. However, among creatures living in land, fireflies, beetles, springtails and fungi have shown some bioluminescent activities. Classically, the emission of light is catalyzed by luciferase from a substrate...
May 17, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28549304/landowner-preferences-for-wetlands-conservation-programs-in-two-southern-ontario-watersheds
#6
Ryan Trenholm, Wolfgang Haider, Van Lantz, Duncan Knowler, Pascal Haegeli
Wetlands in the region of Southern Ontario, Canada have declined substantially from their historic area. Existing regulations and programs have not abated this decline. However, reversing this trend by protecting or restoring wetlands will increase the supply of important ecosystem services. In particular, these actions will contribute to moderating the impacts of extreme weather predicted to result from climate change as well as reducing phosphorous loads in Lake Erie and ensuing eutrophication. Since the majority of land in the region is privately owned, landowners can play an important role...
May 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28549288/ecological-effects-of-soil-properties-and-metal-concentrations-on-the-composition-and-diversity-of-microbial-communities-associated-with-land-use-patterns-in-an-electronic-waste-recycling-region
#7
Wencheng Wu, Changxun Dong, Jiahui Wu, Xiaowen Liu, Yingxin Wu, Xianbin Chen, Shixiao Yu
Soil microbes play vital roles in ecosystem functions, and soil microbial communities may be strongly structured by land use patterns associated with electronic waste (e-waste) recycling activities, which can increase the heavy metal concentration in soils. In this study, a suite of soils from five land use types (paddy field, vegetable field, dry field, forest field, and e-waste recycling site) were collected in Longtang Town, Guangdong Province, South China. Soil physicochemical properties and heavy metal concentrations were measured, and the indigenous microbial assemblages were profiled using 16S rRNA high-throughput sequencing and clone library analyses...
May 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28549173/incidental-mosquitocidal-effect-of-an-ivermectin-mass-drug-administration-on-anopheles-farauti-conducted-for-scabies-control-in-the-solomon-islands
#8
Christian Kositz, Jeptah Talina, Jason Diau, Rowena Asugeni, Cheryl Whitehorn, David Mabey, Carlos Chaccour, Michael Marks
Background: The Solomon Islands is targeting elimination of malaria by 2030. The dominant vector is the predominantly exophagic, exophilic Anopheles farauti sensu strictu. This biting behaviour limits the efficacy of conventional vector control tools and highlights the need for new strategies. When administered to humans ivermectin has been shown to have a mosquitocidal effect. Mass drug administration (MDA) with ivermectin is an emerging strategy in the control of scabies. In this study we explored any incidental effect of ivermectin MDA conducted for scabies control on mosquitoes...
May 26, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28548494/resource-footprints-are-good-proxies-of-environmental-damage
#9
Zoran J N Steinmann, Aafke M Schipper, Mara Hauck, Stefan Giljum, Gregor Wernet, Mark A J Huijbregts
Environmental footprints are increasingly used to quantify and compare environmental impacts of for example products, technologies, households, or nations. This has resulted in a multitude of footprint indicators, ranging from relatively simple measures of resource use (water, energy, materials) to integrated measures of eventual damage (for example, extinction of species). Yet, the possible redundancies among these different footprints have not yet been quantified. This paper analyzes the relationships between two comprehensive damage footprints and four resource footprints associated with 976 products...
May 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28548473/initial-experience-with-the-e-ventus%C3%A2-stentgraft-for-endovascular-treatment-of-visceral-artery-aneurysms
#10
Susanne Anton, Erik Stahlberg, Marco Horn, Marcus Wiedner, Markus Kleemann, Joerg Barkhausen, Jan P Goltz
BACKGROUND: To evaluate the safety and efficacy of a novel balloon-expandable stentgraft for endovascular treatment of visceral artery aneurysms (VAA). METHODS: Between 9/2014 and 1/2017 seven patients (69+/-15y) with true (n=4) and false (n=3) VAAs were treated by implantation of balloon-expandable stentgrafts (E-ventus®, Jotec, Germany) using a trans-femoral (n=2) or -brachial (n=5) vascular access. The stentgraft was placed without prior passing of the landing zone with a sheath...
May 26, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28548173/effects-of-freeze-thawing-cycles-on-desorption-behaviors-of-pah-contaminated-soil-in-the-presence-of-a-biosurfactant-a-case-study-in-western-canada
#11
Y Yao, G H Huang, C J An, G H Cheng, J Wei
Many regions in Canada are facing increasing environmental threats posed by oil and gas exploitation and transportation. These contaminated lands are inevitably subjected to seasonal and diurnal freeze-thawing cycles (FTCs). However, knowledge about the effect of FTCs on the behaviours of hydrophobic contaminants during the aging process of soil is limited. This study investigated the desorption characteristics of phenanthrene in aging soils in the presence of the biosurfactant rhamnolipid under diurnal and seasonal FTC treatments...
May 26, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28548006/management-of-endovascular-aortic-aneurysm-complications-via-retrograde-catheterization-through-the-distal-stent-graft-landing-zone
#12
Xicheng Zhang, Yuan Sun, Zhaolei Chen, Yuanhu Jing, Miao Xu
OBJECTIVE: A retrograde technique through the gap between the distal stent landing zone and the iliac artery wall has been applied to treat type II endoleak after endovascular aortic aneurysm repair (EVAR). In this study, we tried to investigate its efficacy in the management of type III endoleak and intraoperative accidental events. METHODS: We reported 2 complications of EVAR that were difficult to treat with conventional methods. One patient had a sustained type III endoleak after EVAR, and the right renal artery was accidentally sealed by a graft stent in the other patient during the operation...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28547568/biofertilizers-and-sustainable-agriculture-exploring-arbuscular-mycorrhizal-fungi
#13
REVIEW
Nicholas O Igiehon, Olubukola O Babalola
Worldwide agricultural food production has to double in 2050 so as to feed the global increasing population while reducing dependency on conventional chemical fertilizers plus pesticides. To accomplish this objective, there is the need to explore the several mutualistic interactions between plant roots and rhizosphere microbiome. Biofertilization is the process of boosting the abundance of microorganisms such as arbuscular mycorrhizal fungi (AMF) in the natural plant rhizosphere which depicts a beneficial alternative to chemical fertilization practices...
May 25, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28546930/implantation-of-trabecular-micro-bypass-stent-using-a-novel-landing-strip-technique
#14
Cindy X Zheng, Marlene R Moster, Priyanka Gogte, Yang Dai, Remy S Manzi, Michael Waisbourd
AIM: To describe a novel technique of creating a landing strip within the trabecular meshwork to guide trabecular micro-bypass stent (iStent) implantation in patients who underwent phacoemulsification. METHODS: Thirty-four eyes from 30 patients who underwent iStent implantation after phacoemulsification from May 2014 to February 2015 were included in our retrospective study. All iStents were implanted via the "landing strip" technique. A 25-gauge microvitreoretinal blade was used to bisect the trabecular meshwork to less than 1 clock-hour, effectively creating a landing strip...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28546652/chimpanzees-pan-troglodytes-flexibly-use-introduced-species-for-nesting-and-bark-feeding-in-a-human-dominated-habitat
#15
Maureen S McCarthy, Jack D Lester, Craig B Stanford
As habitat loss and fragmentation place growing pressure on endangered nonhuman primate populations, researchers find increasing evidence for novel responses in behavior. In western Uganda between the Budongo and Bugoma Forests, chimpanzees (Pan troglodytes schweinfurthii) inhabit a mosaic landscape comprising forest fragments, human settlements, and agricultural land. We recorded nests and feeding evidence of unhabituated chimpanzees in this region over a 12-mo period. We found extensive evidence of nesting in introduced tree species, including eucalyptus (Eucalyptus grandis), guava (Psidium guajava), cocoa (Theobroma cacao), and Caribbean pine (Pinus caribaea)...
2017: International Journal of Primatology
https://www.readbyqxmd.com/read/28546651/activity-and-habitat-use-of-chimpanzees-pan-troglodytes-verus-in-the-anthropogenic-landscape-of-bossou-guinea-west-africa
#16
Nicola Bryson-Morrison, Joseph Tzanopoulos, Tetsuro Matsuzawa, Tatyana Humle
Many primate populations inhabit anthropogenic landscapes. Understanding their long-term ability to persist in such environments and associated real and perceived risks for both primates and people is essential for effective conservation planning. Primates in forest-agricultural mosaics often consume cultivars to supplement their diet, leading to potentially negative encounters with farmers. When crossing roads, primates also face the risk of encounters with people and collision with vehicles. Chimpanzees (Pan troglodytes verus) in Bossou, Guinea, West Africa, face such risks regularly...
2017: International Journal of Primatology
https://www.readbyqxmd.com/read/28546277/tele-medicine-a-new-promised-land-just-to-save-resources
#17
EDITORIAL
Nicolino Ambrosino, Dewi Nurul Makhabah
No abstract text is available yet for this article.
May 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28546156/ancestral-alliances-plant-mutualistic-symbioses-with-fungi-and-bacteria
#18
REVIEW
Francis M Martin, Stéphane Uroz, David G Barker
Within the plant microbiota, mutualistic fungal and bacterial symbionts are striking examples of microorganisms playing crucial roles in nutrient acquisition. They have coevolved with their hosts since initial plant adaptation to land. Despite the evolutionary distances that separate mycorrhizal and nitrogen-fixing symbioses, these associations share a number of highly conserved features, including specific plant symbiotic signaling pathways, root colonization strategies that circumvent plant immune responses, functional host-microbe interface formation, and the central role of phytohormones in symbiosis-associated root developmental pathways...
May 26, 2017: Science
https://www.readbyqxmd.com/read/28546126/role-of-xyloglucan-in-cotton-gossypium-hirsutum-l-fiber-elongation-of-the-short-fiber-mutant-ligon-lintless-2-li2
#19
Marina Naoumkina, Doug J Hinchliffe, David D Fang, Christopher B Florane, Gregory N Thyssen
Xyloglucan is a matrix polysaccharide found in the cell walls of all land plants. In growing cells, xyloglucan is thought to connect cellulose microfibrils and regulate their separation during wall extension. Ligon lintless-2 (Li2) is a monogenic dominant cotton fiber mutation that causes extreme reduction in lint fiber length with no pleiotropic effects on vegetative growth. Li2 represents an excellent model system to study fiber elongation. To understand the role of xyloglucan in cotton fiber elongation we used the short fiber mutant Li2 and its near isogenic wild type for analysis of xyloglucan content and expression of xyloglucan-related genes in developing fibers...
May 22, 2017: Gene
https://www.readbyqxmd.com/read/28546017/delayed-left-atrial-appendage-contrast-filling-in-computed-tomograms-after-percutaneous-left-atrial-appendage-occlusion
#20
Yeong-Min Lim, Jung-Sun Kim, Tae-Hoon Kim, Jae-Sun Uhm, Chi Young Shim, Boyoung Joung, Geu-Ru Hong, Moon-Hyoung Lee, Yang-Soo Jang, Hui-Nam Pak
BACKGROUND: The gold standard for the follow-up of left atrial appendage occlusion (LAAO) is performing transesophageal echocardiogram (TEE) at 45 days after LAAO; however, the duration for complete LAA seal-off after percutaneous LAAO is unknown in humans. We retrospectively evaluated the LAA contrast-filling (CF) rate in follow-up cardiac computed tomography (CT) scans after LAAO. METHODS: We included 35 patients (age 67.5±10.9 years, CHA2DS2VASc 4.2±1.6, HAS-BLED 3...
May 22, 2017: Journal of Cardiology
keyword
keyword
80994
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"