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https://www.readbyqxmd.com/read/27888844/mr-imaging-of-the-plantar-plate-normal-anatomy-turf-toe-and-other-injuries
#1
REVIEW
Caio Nery, Daniel Baumfeld, Hilary Umans, André F Yamada
The metatarsophalangeal (MTP) joint complex is a weight-bearing structure important to the biomechanics of the standing position, walking, shoe wearing, and sport participation. Acute dorsiflexion injury of the first MTP joint, "turf toe," is common among American football and soccer players. The first and lesser MTP joint complexes can be affected by degenerative or inflammatory arthritis, infarct, and infection. These conditions can lead to plantar plate disruption. Imaging studies help physicians to properly diagnose and treat this condition...
February 2017: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/27887567/fluorescence-chromosome-banding-and-fish-mapping-in-perennial-ryegrass-lolium-perenne-l
#2
Helal A Ansari, Nicholas W Ellison, Shalome A Bassett, Syed W Hussain, Gregory T Bryan, Warren M Williams
BACKGROUND: The unambiguous identification of individual chromosomes is a key part of the genomic characterization of any species. In this respect, the development and application of chromosome banding techniques has revolutionised mammalian and especially, human genomics. However, partly because of the traditional use of chromosome squash preparations, consistent fluorescence banding has rarely been achieved in plants. Here, successful fluorescence chromosome banding has been achieved for the first time in perennial ryegrass (Lolium perenne), a forage and turf grass with a large genome and a symmetrical karyotype with chromosomes that are difficult to distinguish...
November 25, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27872124/incidence-mechanisms-and-severity-of-match-related-collegiate-men-s-soccer-injuries-on-fieldturf-and-natural-grass-surfaces-a-6-year-prospective-study
#3
Michael C Meyers
BACKGROUND: Numerous injuries have been attributed to playing on artificial turf. More recently, newer generations of artificial turf have been developed to duplicate the playing characteristics of natural grass. Although artificial turf has been deemed safer than natural grass in some studies, few long-term studies have been conducted comparing match-related collegiate soccer injuries between the 2 playing surfaces. HYPOTHESIS: Collegiate male soccer athletes do not experience any difference in the incidence, mechanisms, or severity of match-related injuries between FieldTurf and natural grass...
November 21, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27870014/sensitivity-of-coral-recruitment-to-subtle-shifts-in-early-community-succession
#4
Christopher Doropoulos, George Roff, Mart-Simone Visser, Peter J Mumby
Community succession following disturbance depends on positive and negative interactions, the strength of which change along environmental gradients. To investigate how early succession affects coral reef recovery, we conducted an 18 month experiment in Palau, using recruitment tiles and herbivore exclusion cages. One set of reefs has higher wave exposure and had previously undergone a phase shift to macroalgae following a major typhoon, whereas the other set of reefs have lower wave exposure and did not undergo a macroalgal phase shift...
November 21, 2016: Ecology
https://www.readbyqxmd.com/read/27865519/fine-sediments-suppress-detritivory-on-coral-reefs
#5
Sterling B Tebbett, Christopher H R Goatley, David R Bellwood
Increasing sediment inputs are recognised as an important factor leading to coral reef degradation. However, the role of sediments in ecological processes is poorly understood. This study used paired-choice trials to quantify the effects of sediment grain size and chemical composition on feeding by the abundant detritivorous reef fish, Ctenochaetus striatus. The size of sediments from algal turfs were also compared to those ingested by reef-dwelling C. striatus. Algal turfs containing coarser sediments were preferred by C...
November 16, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27859118/organismal-homeostasis-buffers-the-effects-of-abiotic-change-on%C3%A2-community-dynamics
#6
Giulia Ghedini, Sean D Connell
The problem of linking fine-scale processes to broad-scale patterns remains a central challenge of ecology. As rates of abiotic change intensify, there is a critical need to understand how individual responses aggregate to generate compensatory dynamics that stabilize community processes. Notably, while local and global resource enhancement (e.g., nutrient and CO2 release) can reverse dominance relationship between key species (e.g., shifts from naturally kelp-dominated to turf-dominated systems), herbivores can counter these shifts by consuming the additional productivity of competing species (e...
October 2016: Ecology
https://www.readbyqxmd.com/read/27859101/can-trait-patterns-along-gradients-predict-plant-community-responses-to-climate-change
#7
John Guittar, Deborah Goldberg, Kari Klanderud, Richard J Telford, Vigdis Vandvik
Plant functional traits vary consistently along climate gradients and are therefore potential predictors of plant community response to climate change. We test this space-for-time assumption by combining a spatial gradient study with whole-community turf transplantation along temperature and precipitation gradients in a network of 12 grassland sites in Southern Norway. Using data on eight traits for 169 species and annual vegetation censuses of 235 turfs over 5 yr, we quantify trait-based responses to climate change by comparing observed community dynamics in transplanted turfs to field-parameterized null model simulations...
October 2016: Ecology
https://www.readbyqxmd.com/read/27814554/degradation-and-sorption-of-the-fungicide-tebuconazole-in-soils-from-golf-greens
#8
Nora Badawi, Annette E Rosenbom, Anne M D Jensen, Sebastian R Sørensen
The fungicide tebuconazole (TBZ) is used to repress fungal growth in golf greens and ensure their playability. This study determined the degradation and sorption of TBZ applied as an analytical grade compound, a commercial fungicide formulation or in combination with a surfactant product in thatch and soils below two types of greens (USGA and push-up greens) in 12-cm vertical profiles covered by three different types of turf grass. Only minor TBZ degradation was observed and it was most pronounced in treatments with the commercial fungicide product or in combination with the surfactant compared to the analytical grade compound alone...
November 1, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27760168/abundance-and-diversity-of-crypto-and-necto-benthic-coastal-fish-are-higher-in-marine-forests-than-in-structurally-less-complex-macroalgal-assemblages
#9
Pierre D Thiriet, Antonio Di Franco, Adrien Cheminée, Paolo Guidetti, Olivier Bianchimani, Solène Basthard-Bogain, Jean-Michel Cottalorda, Hazel Arceo, Joan Moranta, Pierre Lejeune, Patrice Francour, Luisa Mangialajo
In Mediterranean subtidal rocky reefs, Cystoseira spp. (Phaeophyceae) form dense canopies up to 1 m high. Such habitats, called 'Cystoseira forests', are regressing across the entire Mediterranean Sea due to multiple anthropogenic stressors, as are other large brown algae forests worldwide. Cystoseira forests are being replaced by structurally less complex habitats, but little information is available regarding the potential difference in the structure and composition of fish assemblages between these habitats...
2016: PloS One
https://www.readbyqxmd.com/read/27757476/coupling-of-in-vitro-bioassays-with-planar-chromatography-in-effect-directed-analysis
#10
Stefan C Weiss, Nicole Egetenmeyer, Wolfgang Schulz
Modern analytical test methods increasingly detect anthropogenic organic substances and their transformation products in water samples and in the environment. The presence of these compounds might pose a risk to the aquatic environment. To determine a possible (eco)toxicological risk, aquatic samples are tested using various bioassays, including sub-organismic assays such as the luminescent bacteria inhibition test, the acetylcholinesterase inhibition test, and the umu-test. The effect-directed analysis (EDA) combines physicochemical separation methods with biological (in vitro) tests...
October 19, 2016: Advances in Biochemical Engineering/biotechnology
https://www.readbyqxmd.com/read/27752260/a-novel-two-step-method-for-screening-shade-tolerant-mutant-plants-via-dwarfism
#11
Wei Li, Lorenzo Katin-Grazzini, Sanalkumar Krishnan, Chandra Thammina, Rania El-Tanbouly, Huseyin Yer, Emily Merewitz, Karl Guillard, John Inguagiato, Richard J McAvoy, Zongrang Liu, Yi Li
When subjected to shade, plants undergo rapid shoot elongation, which often makes them more prone to disease and mechanical damage. Shade-tolerant plants can be difficult to breed; however, they offer a substantial benefit over other varieties in low-light areas. Although perennial ryegrass (Lolium perenne L.) is a popular species of turf grasses because of their good appearance and fast establishment, the plant normally does not perform well under shade conditions. It has been reported that, in turfgrass, induced dwarfism can enhance shade tolerance...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27737281/foot-and-ankle-injuries-in-american-football
#12
Andrew R Hsu, Robert B Anderson
Physicians need to be aware of a variety of foot and ankle injuries that commonly occur in American football, including turf toe, Jones fractures, Lisfranc injuries, syndesmotic and deltoid disruption, and Achilles ruptures. These injuries are often complex and require early individual tailoring of treatment and rehabilitation protocols. Successful management and return to play requires early diagnosis, a thorough work-up, and prompt surgical intervention when warranted with meticulous attention to restoration of normal foot and ankle anatomy...
September 2016: American Journal of Orthopedics
https://www.readbyqxmd.com/read/27728832/phytoremediation-of-agriculture-runoff-by-filamentous-algae-poly-culture-for-biomethane-production-and-nutrient-recovery-for-secondary-cultivation-of-lipid-generating-microalgae
#13
Pavlo Bohutskyi, Steven Chow, Ben Ketter, Coral Fung Shek, Dean Yacar, Yuting Tang, Mark Zivojnovich, Michael J Betenbaugh, Edward J Bouwer
An integrated system was implemented for water phytoremediation and biofuel production through sequential cultivation of filamentous algae followed by cultivation of lipid-producing microalgae Chlorella sorokiniana. Natural poly-culture of filamentous algae was grown in agricultural stormwater using the Algal Turf Scrubber®, harvested and subjected for lipid extraction and/or methane production using anaerobic digestion (AD). While filamentous algae lipid content was too low for feasible biodiesel production (<2%), both whole biomass and lipid-extracted algal residues (LEA) yielded ∼0...
December 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27710886/developmental-effects-of-fipronil-on-japanese-medaka-oryzias-latipes-embryos
#14
Scott D Wagner, Tomofumi Kurobe, Bruce G Hammock, Chelsea H Lam, Gary Wu, Natalia Vasylieva, Shirley J Gee, Bruce D Hammock, Swee J Teh
Pesticides in urban runoff are a major source of pollutants in aquatic ecosystems. Fipronil, a phenylpyrazole insecticide, found in structural pest control products, turf grass control, and home pet flea medication, has recently increased in use and is commonly detected in urban runoff. However, little is known about the effects of fipronil on aquatic organisms at early developmental stages. Here, we evaluated toxicity of fipronil to embryos of Japanese Medaka (Oryzias latipes, Qurt strain) using a high-throughput 96-well plate toxicity test...
January 2017: Chemosphere
https://www.readbyqxmd.com/read/27703403/epidemiology-of-racing-injuries-in-thoroughbred-racehorses-with-special-reference-to-bone-fractures-japanese-experience-from-the-1980s-to-2000s
#15
Yousuke Maeda, Michiko Hanada, Masa-Aki Oikawa
This report describes the descriptive epidemiology of racing fractures that occurred from the 1980s to 2000s on racetracks of the Japan Racing Association (JRA). The incidence of racehorse fractures during flat racing was approximately 1-2%. Fractures occurring during a race are more likely to occur in a forelimb. Fractures mostly occur at the third and fourth corners of oval tracks and on the home stretch. They also occur more frequently at the time of changing the leading limb. Comparison of the incidence of racing fracture between before and after reconstruction of the geometrical configuration of a racetrack revealed that there was an outstanding reduction in the number of serious fractures in the year before and after reconstruction...
2016: Journal of Equine Science
https://www.readbyqxmd.com/read/27701418/role-of-recruitment-processes-in-structuring-coralligenous-benthic-assemblages-in-the-northern-adriatic-continental-shelf
#16
Federica Fava, Massimo Ponti, Marco Abbiati
Coralligenous biogenic reefs are among the most diverse marine habitats in the Mediterranean Sea. The northern Adriatic mesophotic coralligenous outcrops host very rich and diverse epibenthic assemblages. Several studies quantified the low temporal variability and high spatial heterogeneity of these habitats, while processes driving structuring and differentiation are still poorly understood. To shed light on these processes, temporal and spatial patterns of colonisation were investigated using travertine tiles deployed on three coralligenous outcrops, corresponding to the main typologies of benthic assemblages described in previous studies...
2016: PloS One
https://www.readbyqxmd.com/read/27695764/nitrous-oxide-emissions-from-a-golf-course-fairway-and-rough-after-application-of-different-nitrogen-fertilizers
#17
Katrina L Gillette, Yaling Qian, Ronald F Follett, Stephen Del Grosso
Few studies have quantified nitrous oxide (NO) emissions from intensively managed turfgrass systems on golf courses. Fertilizer treatments consisting of urea with inhibitors of nitrification and urease (INU), polymer-coated urea (PCU), and uncoated balanced methylene urea (BMU) chain, which use different mechanisms to control the release of N substrate, were applied to a golf course fairway and rough three times during the 2011 growing season at a rate of 50 kg N ha per application. The vented chamber method was used to measure turf-soil-atmospheric NO exchange...
September 2016: Journal of Environmental Quality
https://www.readbyqxmd.com/read/27651229/investigating-functional-redundancy-versus-complementarity-in-hawaiian-herbivorous-coral-reef-fishes
#18
Emily L A Kelly, Yoan Eynaud, Samantha M Clements, Molly Gleason, Russell T Sparks, Ivor D Williams, Jennifer E Smith
Patterns of species resource use provide insight into the functional roles of species and thus their ecological significance within a community. The functional role of herbivorous fishes on coral reefs has been defined through a variety of methods, but from a grazing perspective, less is known about the species-specific preferences of herbivores on different groups of reef algae and the extent of dietary overlap across an herbivore community. Here, we quantified patterns of redundancy and complementarity in a highly diverse community of herbivores at a reef on Maui, Hawaii, USA...
December 2016: Oecologia
https://www.readbyqxmd.com/read/27627990/small-sided-football-games-on-sand-are-more-physical-demanding-but-less-technical-specific-compared-to-artificial-turf
#19
Vincenzo Rago, António N Rebelo, Federico Pizzuto, Daniel Barreira
BACKGROUND: The use of sand has been suggested as fitness-enhancing surface in field-based team sports. However, concerns have arisen in regard whether physical responses associated to sand training are sport-specific. We compared physical and technical demands during small-sided football games (4v4 + goalkeeper; SSGs) played on artificial turf and on sand. METHODS: Movement patterns, rating of perceived exertion (RPE) and technical parameters were obtained from eight adult male footballers (20...
September 15, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27591516/assessing-the-herbivore-role-of-the-sea-urchin-echinometra-viridis-keys-to-determine-the-structure-of-communities-in-disturbed-coral-reefs
#20
Carlos Sangil, Hector M Guzman
Echinometra viridis previously was considered a cryptic species unable to control the development and growth of macroalgae on coral reefs. Its role as a herbivore was seen as minor compared to other grazers present on the reef. However, the present disturbed state of some reefs has highlighted the role played by this sea-urchin. Combining field data with experiments on the Caribbean coast of Panama, we demonstrate that the current community organization on disturbed coral reefs in the Mesoamerican Caribbean is largely due to the action of E...
September 2016: Marine Environmental Research
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