Read by QxMD icon Read


Ranjan Muthukrishnan, Peggy Fong
Local anthropogenic stressors such as overfishing, nutrient enrichment and increased sediment loading have been shown to push coral reefs toward greater dominance by algae. In a few cases this shift has been temporary, with the ability to recover to a healthy coral-dominated community after disturbance, suggesting some systems have considerable resilience. However, an understanding of the circumstances under which reefs may recover is only beginning to emerge. We monitored recovery of a coral-dominated reef in the Eastern Tropical Pacific (ETP) after cessation of a ∼6 month multiple stressor experiment (with herbivore exclosure, nutrient addition, and sediment addition)...
May 7, 2018: Marine Environmental Research
Huaihai Chen, Tianyou Yang, Qing Xia, Daniel Bowman, David Williams, John T Walker, Wei Shi
Nitrogen loss from fertilized turf has been a concern for decades, with most research focused on inorganic (NO3 - ) leaching. The present work examined both inorganic and organic N species in leachate and soil N2 O emissions from intact soil cores of a bermudagrass chronosequence (1, 15, 20, and 109 years old) collected in both winter and summer. Measurements of soil N2 O emissions were made daily for 3 weeks, while leachate was sampled once a week. Four treatments were established to examine the impacts of fertilization and temperature: no N, low N at 30 kg N ha-1 , and high N at 60 kg N ha-1 , plus a combination of high N and temperature (13 °C in winter or 33 °C in summer compared to the standard 23 °C)...
May 11, 2018: Science of the Total Environment
Jun Liang, Xiaojun He, Yuxi Jia, Wei Zhu, Jianbo Lei
Objective: To analyze and compare the usefulness of hypertension management APPs released in the Chinese market; to understand the general situations, characteristics, problems, and trends in hypertension management mHealth APPs; and to identify the gaps between mainland China products and non-mainland China products with the aim to provide recommendations for developers in industry and assist hypertensive patients in selecting suitable APPs. Methods: The hypertension management APPs available by October 2016 in China were analyzed from the perspective of data items and function usefulness...
2018: Journal of Healthcare Engineering
Hyewon Kong, Navdeep S Chandel
Maintaining redox balance in cancer cells is essential for tumor development and progression. In this issue of Molecular Cell, Tsang et al. (2018) identify an evolutionarily conserved mTORC1-dependent mechanism by which cancer cells control redox homeostasis in ischemic tumor microenvironment.
May 3, 2018: Molecular Cell
David R Bellwood, Sterling B Tebbett, Orpha Bellwood, Michalis Mihalitsis, Renato A Morais, Robert P Streit, Christopher J Fulton
The reef flat is one of the largest and most distinctive habitats on coral reefs, yet its role in reef trophodynamics is poorly understood. Evolutionary evidence suggests that reef flat colonization by grazing fishes was a major innovation that permitted the exploitation of new space and trophic resources. However, the reef flat is hydrodynamically challenging, subject to high predation risks and covered with sediments that inhibit feeding by grazers. To explore these opposing influences, we examine the Great Barrier Reef (GBR) as a model system...
April 2018: Ecology and Evolution
Elaine Coustan-Smith, Guangchun Song, Sheila Shurtleff, Allen Eng-Juh Yeoh, Wee Joo Chng, Siew Peng Chen, Jeffrey E Rubnitz, Ching-Hon Pui, James R Downing, Dario Campana
BACKGROUND: Optimal management of acute myeloid leukemia (AML) requires monitoring of treatment response, but minimal residual disease (MRD) may escape detection. We sought to identify distinctive features of AML cells for universal MRD monitoring. METHODS: We compared genome-wide gene expression of AML cells from 157 patients with that of normal myeloblasts. Markers encoded by aberrantly expressed genes, including some previously associated with leukemia stem cells, were studied by flow cytometry in 240 patients with AML and in nonleukemic myeloblasts from 63 bone marrow samples...
May 3, 2018: JCI Insight
Sean D Connell, Zoë A Doubleday, Nicole R Foster, Sarah B Hamlyn, Christopher D G Harley, Brian Helmuth, Brendan P Kelaher, Ivan Nagelkerken, Kirsten L Rodgers, Gianluca Sarà, Bayden D Russell
Ecologically dominant species often define ecosystem states, but as human disturbances intensify, their subordinate counterparts increasingly displace them. We consider the duality of disturbance by examining how environmental drivers can simultaneously act as a stressor to dominant species and as a resource to subordinates. Using a model ecosystem, we demonstrate that CO2 -driven interactions between species can account for such reversals in dominance; i.e., the displacement of dominants (kelp forests) by subordinates (turf algae)...
May 2018: Ecology
Muhammad Ihtisham, Shah Fahad, Tao Luo, Robert M Larkin, Shaohua Yin, Longqing Chen
Bermudagrass [ Cynodon dactylon (L.) Pers.] turf loss due to severe cold in transitional climates is a major concern. To overcome this problem, warm-season grass is often overseeded with a cool-season turfgrass. In this study, modeling and efficient nutrient management were used to evaluate this problem. A three-factor and five-level central composite rotatable design (CCRD) with a simulation of a regression model was used to optimize fertilization rates. The study investigated the combined effects of fertilization with nitrogen (N), phosphorus (P), and potassium (K) on both the morphological and physiological attributes and on the integrated turf performance (ITP) of overseeded perennial ryegrass ( Lolium perenne )...
2018: Frontiers in Plant Science
Qin Ping, Sheng Xu, Wei Chen, Xing Yuan He, Yan Qing Huang, Xian Wu
Taking ambient environmental O3 (40 nmol·mol-1 ) as control, the study was conducted to assess the impact of elevated O3 (80 and 160 nmol·mol-1 ) on the growth, subcellular structure and reactive oxygen metabolism of turf-type Festuca arundinace in open top-chambers (OTCs). The results showed that under 14-day fumigation, the height and leaf width of F. arundinace decreased significantly, and the total biomass decreased by 43.7%, and some fully expanded leaves yellowed under 80 nmol·mol-1 O3 . Some visible injury symptoms, brown spots and necrosis appeared in the leaves, the total biomass decreased by 46...
December 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Chander Mohan
No abstract text is available yet for this article.
January 2018: Indian Journal of Radiology & Imaging
Matthew R Moore, Ronald D Cave, Marc A Branham
The cyclocephaline scarabs (Scarabaeidae: Dynastinae: Cyclocephalini) are a speciose tribe of beetles that include species that are ecologically and economically important as pollinators and pests of agriculture and turf. We provide an overview and synopsis of the 14 genera of Cyclocephalini that includes information on: 1) the taxonomic and nomenclatural history of the group; 2) diagnosis and identification of immature life-stages; 3) economic importance in agroecosystems; 4) natural enemies of these beetles; 5) use as food by humans; 6) the importance of adults as pollination mutualists; 7) fossil cyclocephalines and the evolution of the group; 8) generic-level identification of adults...
2018: ZooKeys
A Barstow, J Bailey, J Campbell, C Harris, R Weller, T Pfau
BACKGROUND: Both pleasure and competition horses regularly exercise on surfaces such as tarmac, gravel, and turf during 'hacking'. Despite this, there is limited evidence relating to the effect of these surfaces upon foot-surface interaction. OBJECTIVES: To investigate forelimb foot placement, hoof vibration and movement symmetry in pleasure horses on three commonly encountered hacking surfaces. STUDY DESIGN: Quantitative gait study in a convenience sample...
April 17, 2018: Equine Veterinary Journal
Chunmao Chen, Xianyang Yao, Qing X Li, Qinghong Wang, Jiahao Liang, Simin Zhang, Jie Ming, Zhiyuan Liu, Jingmin Deng, Brandon A Yoza
Phenols are industrially generated intermediate chemicals found in wastewaters that are considered a class of environmental priority pollutants. Up-flow anaerobic sludge blanket (UASB) reactors are used for phenolic wastewater treatment and exhibit high volume loading capability, favorable granule settling, and tolerance to impact loads. Use of support materials can promote biological productivity and accelerate start-up period of UASB. In the present study, turf soil was used as a support material in a mesophilic UASB reactor for the removal of phenols in wastewater...
April 10, 2018: Chemosphere
Haitao Wang, Minying Cheng, Melissa Dsouza, Pamela Weisenhorn, Tianling Zheng, Jack A Gilbert
Urban greenspaces provide extensive ecosystem services, including pollutant remediation, water management, carbon maintenance, and nutrient cycling. However, while the urban soil microbiota underpin these services, we still have limited understanding of the factors that influence their distribution. We characterized soil bacterial communities from turf-grasses associated with urban parks, streets and residential sites across a major urban environment, including a gradient of human population density. Bacterial diversity was significantly positively correlated with the population density; and species diversity was greater in park and street soils, compared to residential soils...
April 6, 2018: Environmental Science & Technology
Pamela J Rice, Brian P Horgan, Jennifer L Hamlin
Flutolanil and pentachloronitrobenzene (PCNB) are fungicides used to control or suppress foliar and soil borne diseases in turf and ornamental crops. On golf courses, sports fields, sod farms and commercial lawns these fungicides are used as preventive treatments to combat snow mold, brown patch and fairy ring. Depending on the aquatic organism, flultolanil and PCNB are considered to be moderately to highly toxic. Therefore runoff or drift from treated areas may be hazardous to organisms in adjacent aquatic sites...
April 2, 2018: Ecotoxicology and Environmental Safety
Vincenzo Rago, João R Silva, João Brito, Daniel Barreira, Magni Mohr, Peter Krustrup, António N Rebelo
Soccer training and completion is conventionally practiced on natural grass (NG) or artificial turf (AT). Recently, AT pitches for training / competition, and of unstable surfaces for injury prevention training has increased. Therefore, soccer players are frequently exposed to variations in pitch surface during either training or competition. These ground changes may impact physical and physiological responses, adaptations as well as the injury. The aim of this review was to summarize the acute physical and physiological responses, chronic adaptations, and injury risk associated with exercising on different pitch surfaces in soccer...
April 4, 2018: Journal of Sports Medicine and Physical Fitness
L Piazzi, P Gennaro, F Atzori, N Cadoni, M F Cinti, F Frau, G Ceccherelli
A modified version of the ALien Biotic IndEX (ALEX) has been recently proposed to evaluate biological invasions in macroalgal assemblages. ALEX was applied in a Marine Protected Area where a recreational-fishing port is present testing the following hypotheses: ALEX increases with the distance from the port, it changes between the two directions off the port and it changes among three different habitats: Cystoseira beds, algal turf and dead matte of the seagrass Posidonia oceanica. A total of 78 native macroalgal taxa and 4 introduced species were found, the Chlorophyta Caulerpa cylindracea and the Rhodophyta Apoglossum gregarium, Acrothamnion preissii and Womersleyella setacea...
March 2018: Marine Pollution Bulletin
Sarah M Rosanowski, Yu-Mei Chang, Anthony J Stirk, Kristien L P Verheyen
A key focus of the racing industry is to reduce the number of race-day events where horses die suddenly or are euthanased due to catastrophic injury. The objective of this study was therefore to determine risk factors for race-day fatalities in Thoroughbred racehorses, using a cohort of all horses participating in flat racing in Great Britain between 2000 and 2013. Horse-, race- and course-level data were collected and combined with all race-day fatalities, recorded by racecourse veterinarians in a central database...
2018: PloS One
Han-Yu Jiang, Jin-Lin Zhang, Jiang-Wei Yang, Hui-Ling Ma
Creeping bentgrass ( Agrostis stolonifera ) is the preferred green lawn grass, with excellent turf characteristics but poor disease resistance. At present, the mechanisms of disease resistance in creeping bentgrass are poorly understood, especially the ethylene signal transduction pathway under the induced systemic resistance (ISR) response. In this study, butanediol (BDO), as a new type of disease-resistance compound, was applied to creeping bentgrass seedlings to induce the ISR response. Then, we measured ethylene production and related enzyme activities...
March 20, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Monica Montefalcone, Giada De Falco, Ettore Nepote, Martina Canessa, Marco Bertolino, Giorgio Bavestrello, Carla Morri, Carlo Nike Bianchi
Marine caves are unique and vulnerable habitats exhibiting high biodiversity and heterogeneity, but threatened by multiple global and local disturbances. Marine caves, although widely distributed along the Mediterranean coast, suffer for the lack of quantitative data on their structure and function, which hinder their conservation status assessment. Thanks to the availability of a nearly 30-year-long series of data (1986-2013), we evaluated ecosystem change in the Bergeggi marine cave (Ligurian Sea, NW Mediterranean), a cave with a complex shape and high habitat heterogeneity...
February 21, 2018: Marine Environmental Research
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"