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https://www.readbyqxmd.com/read/28535596/leaf-litter-leachate-concentration-promotes-heterotrophy-in-freshwater-biofilms-understanding-consequences-of-water-scarcity
#1
Aingeru Martínez, John Stephen Kominoski, Aitor Larrañaga
Climate change is increasing overall temporal variability in precipitation resulting in a seasonal water availability, both increasing periods of flooding and water scarcity. During low water availability periods, the concentration of leachates from riparian vegetation increases, subsequently increasing dissolved organic matter (DOM). Moreover, shifts in riparian vegetation by land use changes impact the quantity and quality of DOM. Our objective was to test effects of increasing DOM concentrations from Eucalyptus grandis (one of the most cultivated tree species in the world) leachates on the metabolism (respiration, R; gross primary productivity, GPP) and extracellular enzyme activities (EEAs) of freshwater biofilms...
May 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28535202/clinical-implications-of-hypothermic-ventricular-fibrillation-versus-beating-heart-technique-during-cardiopulmonary-bypass-for-pulmonary-valve-replacement-in-patients-with-repaired-tetralogy-of-fallot
#2
Ji-Hyun Lee, Ji-Eun Lee, Jungho Shin, In-Kyung Song, Hee-Soo Kim, Chong-Sung Kim, Woong-Han Kim, Jin-Tae Kim
OBJECTIVES: This study aimed to compare the effects of hypothermic ventricular fibrillation and beating-heart techniques during cardiopulmonary bypass (CPB) on postoperative outcomes after simple pulmonary valve replacement in patients with repaired tetralogy of Fallot (TOF). METHODS: We retrospectively reviewed the data of 47 patients with repaired tetralogy of Fallot at a single institution, who received pulmonary valve replacement under the ventricular fibrillation or beating-heart technique without cardioplegic cardiac arrest during CPB between January 2005 and April 2015...
May 23, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28533768/novel-large-sulfur-bacteria-in-the-metagenomes-of-groundwater-fed-chemosynthetic-microbial-mats-in-the-lake-huron-basin
#3
Allison M Sharrar, Beverly E Flood, Jake V Bailey, Daniel S Jones, Bopaiah A Biddanda, Steven A Ruberg, Daniel N Marcus, Gregory J Dick
Little is known about large sulfur bacteria (LSB) that inhabit sulfidic groundwater seeps in large lakes. To examine how geochemically relevant microbial metabolisms are partitioned among community members, we conducted metagenomic analysis of a chemosynthetic microbial mat in the Isolated Sinkhole, which is in a deep, aphotic environment of Lake Huron. For comparison, we also analyzed a white mat in an artesian fountain that is fed by groundwater similar to Isolated Sinkhole, but that sits in shallow water and is exposed to sunlight...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28532614/evidence-based-medicine-was-bound-to-fail-a-report-to-alvan-feinstein
#4
Giovanni A Fava
John Ioannidis has provided a lucid account, in the form of a report to David Sackett, of how evidence-based medicine (EBM) was hijacked to serve vested interests: major randomized controlled trials are largely done by and for the benefit of the industry; meta-analyses and guidelines are flooded with conflicts of interest; national and federal research funds are unable to address basic clinical questions. Nonetheless, EBM would remain a worthwhile goal. In this paper, in the form of a report to Alvan Feinstein, it is argued that current developments were largely predictable...
April 2017: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/28532513/barriers-to-utilisation-of-antenatal-care-services-in-south-sudan-a-qualitative-study-in-rumbek-north-county
#5
Calistus Wilunda, Chiara Scanagatta, Giovanni Putoto, Francesca Montalbetti, Giulia Segafredo, Risa Takahashi, Serge André Mizerero, Ana Pilar Betrán
BACKGROUND: Access to adequate antenatal care (ANC) is critical in ensuring a good maternal health and in preventing maternal and neonatal morbidity and mortality. South Sudan has one of the world's poorest health indicators due to a fragile health system and a combination of socio-cultural, economic, and political factors. This study was conducted to identify barriers to utilisation of ANC services in Rumbek North County. METHODS: Using a qualitative design, data were collected through 14 focus group discussions with 169 women and 45 men and 12 key informant interviews with community leaders, staff working in health facilities, and the staff of the County Health Department...
May 22, 2017: Reproductive Health
https://www.readbyqxmd.com/read/28531558/accumulation-translocation-and-conversion-of-six-arsenic-species-in-rice-plants-grown-near-a-mine-impacted-city
#6
Li Ma, Lin Wang, Yuyu Jia, Zhaoguang Yang
Paddy rice (Oryza sativa L.) as the staple food in China was found to be efficient in accumulating arsenic (As) due to cultivated in flooded paddy soil. Uptake and translocation of As in rice plant depended on the As species. In this work, rice plant samples including roots, straws and grains as well as rhizosphere soils were collected from paddy fields near Changsha, a mine impacted city in Southern China. The total As concentrations in the collected samples were observed in the descending order as root > soil > straw > grain...
May 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28529503/response-of-methanogenic-microbial-communities-to-desiccation-stress-in-flooded-and-rain-fed-paddy-soil-from-thailand
#7
Andreas Reim, Marcela Hernández, Melanie Klose, Amnat Chidthaisong, Monthira Yuttitham, Ralf Conrad
Rice paddies in central Thailand are flooded either by irrigation (irrigated rice) or by rain (rain-fed rice). The paddy soils and their microbial communities thus experience permanent or arbitrary submergence, respectively. Since methane production depends on anaerobic conditions, we hypothesized that structure and function of the methanogenic microbial communities are different in irrigated and rain-fed paddies and react differently upon desiccation stress. We determined rates and relative proportions of hydrogenotrophic and aceticlastic methanogenesis before and after short-term drying of soil samples from replicate fields...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28527182/water-for-agriculture-the-convergence-of-sustainability-and-safety
#8
Sarah M Markland, David Ingram, Kalmia E Kniel, Manan Sharma
Agricultural water is a precious and limited resource. Increasingly more water types and sources are being explored for use in irrigation within the United States and across the globe. As outlined in this chapter, the Produce Safety Rule (PSR) in the Food Safety and Modernization Act (FSMA) provide irrigation water standards for application of water to fruits and vegetables consumed raw. These rules for production and use of water will continue to develop and be required as the world experiences aspects of a changing climate including flooding as well as drought conditions...
May 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28527143/characterization-of-arsenic-availability-in-dry-and-flooded-soils-using-sequential-extraction-and-diffusive-gradients-in-thin-films-dgt-techniques
#9
Liping Zhang, Qin Sun, Shiming Ding, Xiang Cheng, Qin Liu, Chaosheng Zhang
Much attention has been paid to the availability of arsenic (As) in soils, while few studies were carried out on the comparison between the dry and flooded soils using different methods. In this study, chemical sequential extraction and diffusive gradients in thin films (DGT) techniques were employed to study the availability of As in soils amended with a range of exogenous As followed by one-year incubation under dry and flooded conditions, respectively. The results showed that the proportions of available solid As pools, including non-specifically adsorbed As (F1) and specifically adsorbed As (F2), had consistent increases with the increase of As amendment...
May 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28523399/anal-sphincter-injury-in-vaginal-deliveries-complicated-by-shoulder-dystocia
#10
Mark P Hehir, Zachary Rubeo, Karen Flood, Anne H Mardy, Colm O'Herlihy, Peter C Boylan, Mary E D'Alton
INTRODUCTION AND HYPOTHESIS: Shoulder dystocia is an obstetric emergency that occurs in 0.2-3% of all cephalic vaginal deliveries. We hypothesized that because of the difficult nature of deliveries complicated by shoulder dystocia, the condition may be associated with anal sphincter injury. We sought to identify risk factors for obstetric anal sphincter injury in women with shoulder dystocia. METHODS: This retrospective analysis included all cases of shoulder dystocia from 2007 to 2011 at two large tertiary referral centers, in the USA and Ireland...
May 18, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28522843/doubling-of-coastal-flooding-frequency-within-decades-due-to-sea-level-rise
#11
Sean Vitousek, Patrick L Barnard, Charles H Fletcher, Neil Frazer, Li Erikson, Curt D Storlazzi
Global climate change drives sea-level rise, increasing the frequency of coastal flooding. In most coastal regions, the amount of sea-level rise occurring over years to decades is significantly smaller than normal ocean-level fluctuations caused by tides, waves, and storm surge. However, even gradual sea-level rise can rapidly increase the frequency and severity of coastal flooding. So far, global-scale estimates of increased coastal flooding due to sea-level rise have not considered elevated water levels due to waves, and thus underestimate the potential impact...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28520740/ascertaining-the-impact-of-catastrophic-events-on-dengue-outbreak-the-2014-gas-explosions-in-kaohsiung-taiwan
#12
Ying-Hen Hsieh
Infectious disease outbreaks often occur in the aftermath of catastrophic events, either natural or man-made. While natural disasters such as typhoons/hurricanes, flooding and earthquakes have been known to increase the risk of infectious disease outbreak, the impact of anthropogenic disasters is less well-understood. Kaohsiung City is located in southern Taiwan, where most dengue outbreaks had occurred in the past two decades. It is also the center of petrochemical industry in Taiwan with pipelines running underneath city streets...
2017: PloS One
https://www.readbyqxmd.com/read/28518005/safety-considerations-for-medical-staff-and-patients-who-fly-over-water-in-a-helicopter-for-work-or-recreation
#13
Christopher J Brooks, Conor V MacDonald
BACKGROUND: Around 25% of people involved in a helicopter accident in water do not survive. From time to time, physicians and their medical staff are required to fly over water in a helicopter to attend one or more seriously ill patients. Many will have had little or no experience of the issues involved if the helicopter has an accident in the water. Also as Family Practitioners, Aeromedical Examiners, and Flight Surgeons, they are asked to provide advice to patients, travel agents, and airline booking agents about whether an overwater helicopter flight is advisable or not...
April 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28516406/degradation-and-adsorption-of-tralkoxydim-in-chinese-soils-and-water-sediment-environments
#14
Wen Zhu Wu, Zheng Jun Shan, De Yang Kong, Jian He
Tralkoxydim is a cyclohexanedione herbicide primarily used for gramineous weed control in China. In this paper, we present results of a tralkoxydim laboratory environmental fate study characterizing its degradation, adsorption, and mobility behavior in three different soils and two water-sediment systems (river and lake) in China. Degradation half-life of tralkoxydim in soil under aerobic conditions was 5.1, 7.7, and 7.9 days in Jiangxi red soil, Taihu paddy soil, and Northeast China black soil, respectively...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28515894/reproductive-ecology-of-interior-least-tern-and-piping-plover-in-relation-to-platte-river-hydrology-and-sandbar-dynamics
#15
Jason M Farnsworth, David M Baasch, Chadwin B Smith, Kevin L Werbylo
Investigations of breeding ecology of interior least tern (Sternula antillarum athalassos) and piping plover (Charadrius melodus) in the Platte River basin in Nebraska, USA, have embraced the idea that these species are physiologically adapted to begin nesting concurrent with the cessation of spring floods. Low use and productivity on contemporary Platte River sandbars have been attributed to anthropomorphically driven changes in basin hydrology and channel morphology or to unusually late annual runoff events...
May 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28514312/treatment-inferred-from-mutations-identified-using-massive-parallel-sequencing-leads-to-clinical-benefit-in-some-heavily-pretreated-cancer-patients
#16
Aviad Zick, Tamar Peretz, Michal Lotem, Ayala Hubert, Daniela Katz, Mark Temper, Yakir Rottenberg, Beatrice Uziely, Hovav Nechushtan, Amichai Meirovitz, Amir Sonnenblick, Eli Sapir, David Edelman, Yael Goldberg, Alexander Lossos, Shai Rosenberg, Iris Fried, Ruth Finklstein, Eli Pikarsky, Hanoch Goldshmidt
Molecular portraits of numerous tumors have flooded oncologists with vast amounts of data. In parallel, effective inhibitors of central pathways have shown great clinical benefit. Together, this promises potential clinical benefits to otherwise end-stage cancer patients. Here, we report a clinical service offering mutation detection of archived samples using the ion Ampliseq cancer panel coupled with clinical consultation.A multidisciplinary think tank consisting of oncologists, molecular-biologists, genetic counselors, and pathologists discussed 67 heavily pretreated, advanced cancer patient cases, taking into account mutations identified using ion Ampliseq cancer panel, medical history, and relevant literature...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28514308/emotional-exhaustion-induced-latent-autoimmune-diabetes-in-adults-in-a-young-lady-a-care-compliant-case-report
#17
Yin-Ling Chen, Yong-Chao Qiao, Xin-Nan Song, Wei Ling, Hai-Lu Zhao, Xiao-Xi Zhang
RATIONALE: Latent autoimmune diabetes in adults (LADA) refers to an autoimmune disorder characterized with detectable islets antibodies in the early diagnosis and increased autoimmune beta-cell failure progression. Notably, this kind of diabetes seems to be confused with other phenotypic diabetes. PATIENT CONCERNS: A young woman suffered an emotional exhaustion-induced LADA, showing asthenia, polydipsia, polyuria, and visible weight loss. The patient emotionally ended a 14-year romantic relationship, leading to the emotional flooding...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28513421/clinical-and-bacteriological-characteristics-associated-with-clustering-of-multidrug-resistant-tuberculosis
#18
J-Y J-Y Feng, L G Jarlsberg, K Salcedo, J Rose, M Janes, S-Y G Lin, D H Osmond, K C Jost, M K Soehnlen, J Flood, E A Graviss, E Desmond, P K Moonan, P Nahid, P C Hopewell, M Kato-Maeda
<h2>SETTING:</h2><p>The impact of the genetic characteristics of Mycobacterium tuberculosis on the clustering of multidrug-resistant tuberculosis (MDR-TB) has not been analyzed together with clinical and demographic characteristics.</p><h2>OBJECTIVE:</h2><p>To determine factors associated with genotypic clustering of MDR-TB in a community-basedstudy.</p><h2>DESIGN:</h2><p>We measured the proportion of clustered cases among MDR-TB patients and determined the impact of clinical and demographic characteristics and that of three M...
May 16, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28511736/dietary-salt-intake-in-the-australian-population
#19
Joseph Alvin Santos, Jacqui Webster, Mary-Anne Land, Victoria Flood, John Chalmers, Mark Woodward, Bruce Neal, Kristina S Petersen
OBJECTIVE: To update the estimate of mean salt intake for the Australian population made by the Australian Health Survey (AHS). DESIGN: A secondary analysis of the data collected in a cross-sectional survey was conducted. Estimates of salt intake were made in Lithgow using the 24 h diet recall methodology employed by the AHS as well as using 24 h urine collections. The data from the Lithgow sample were age- and sex-weighted, to provide estimates of daily salt intake for the Australian population based upon (i) the diet recall data and (ii) the 24 h urine samples...
May 17, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28511356/effects-of-sewage-effluents-and-seasonal-changes-on-the-metabolism-of-three-atlantic-rivers
#20
Tamara Rodríguez-Castillo, José Barquín, Mario Álvarez-Cabria, Francisco J Peñas, César Álvarez
Sewage inputs on fluvial ecosystems affect benthic communities and alter trophic networks resulting in changes on river functioning. Functional indicators (e.g. river metabolism) have been proposed as a valuable tool to evaluate ecosystem impairment. In the present study we monitored river metabolism in spring (few days after a major flood) and in summer (after 35days of low flow conditions) using both single-station and two-stations methods over a 24h period up and downstream of wastewater treatment plant (WWTP) effluents on three Atlantic river reaches located in northern Spain (Europe)...
May 12, 2017: Science of the Total Environment
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