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https://www.readbyqxmd.com/read/28811598/effects-of-contaminants-of-emerging-concern-on-megaselia-scalaris-lowe-diptera-phoridae-and-its-microbial-community
#1
Marcus J Pennington, Jason A Rothman, Michael B Jones, Quinn S McFrederick, Jay Gan, John T Trumble
Drought, rising temperatures, and expanding human populations are increasing water demands. Many countries are extending potable water supplies by irrigating crops with wastewater. Unfortunately, wastewater contains biologically active, long-lived pharmaceuticals, even after treatment. Run-off from farms and wastewater treatment plant overflows contribute high concentrations of pharmaceuticals to the environment. This study assessed the effects of common pharmaceuticals on a cosmopolitan saprophagous insect, Megaselia scalaris (Diptera: Phoridae)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811508/discrimination-of-plant-root-zone-water-status-in-greenhouse-production-based-on-phenotyping-and-machine-learning-techniques
#2
Doudou Guo, Jiaxiang Juan, Liying Chang, Jingjin Zhang, Danfeng Huang
Plant-based sensing on water stress can provide sensitive and direct reference for precision irrigation system in greenhouse. However, plant information acquisition, interpretation, and systematical application remain insufficient. This study developed a discrimination method for plant root zone water status in greenhouse by integrating phenotyping and machine learning techniques. Pakchoi plants were used and treated by three root zone moisture levels, 40%, 60%, and 80% relative water content. Three classification models, Random Forest (RF), Neural Network (NN), and Support Vector Machine (SVM) were developed and validated in different scenarios with overall accuracy over 90% for all...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810076/groundwater-development-stress-global-scale-indices-compared-to-regional-modeling
#3
William M Alley, Brian R Clark, David M Ely, Claudia C Faunt
The increased availability of global datasets and technologies such as global hydrologic models and the Gravity Recovery and Climate Experiment (GRACE) satellites have resulted in a growing number of global-scale assessments of water availability using simple indices of water stress. Developed initially for surface water, such indices are increasingly used to evaluate global groundwater resources. We compare indices of groundwater development stress for three major agricultural areas of the United States to information available from regional water budgets developed from detailed groundwater modeling...
August 15, 2017: Ground Water
https://www.readbyqxmd.com/read/28808636/in-vivo-assessment-of-accuracy-of-propex-ii-root-zx-ii-and-radiographic-measurements-for-location-of-the-major-foramen
#4
Fernanda Garcia Tampelini, Marcelo Santos Coelho, Marcos de Azevêdo Rios, Carlos Eduardo Fontana, Daniel Guimarães Pedro Rocha, Sergio Luiz Pinheiro, Carlos Eduardo da Silveira Bueno
OBJECTIVES: The aim of this in vivo study was to assess the accuracy of 2 third-generation electronic apex locators (EALs), Propex II (Dentsply Maillefer) and Root ZX II (J. Morita), and radiographic technique for locating the major foramen (MF). MATERIALS AND METHODS: Thirty-two premolars with single canals that required extraction were included. Following anesthesia, access, and initial canal preparation with size 10 and 15 K-flex files and SX and S1 rotary ProTaper files, the canals were irrigated with 2...
August 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28808456/an-in-vitro-comparison-of-apically-extruded-debris-using-reciproc-protaper-universal-neolix-and-hyflex-in-curved-canals
#5
Hossein Labbaf, Kiumars Nazari Moghadam, Shahriar Shahab, Mahshid Mohammadi Bassir, Mohammad Amin Fahimi
INTRODUCTION: As a consequence of root canal preparation, dentinal chips, irrigants and pulp remnants are extruded into preradicular space. This phenomenon may lead to post endodontic flare-ups. The purpose of this study was to compare the amount of extruded debris with four endodontic NiTi engine-driven systems. METHODS AND MATERIALS: Sixty mesiobuccal roots of maxillary molars with 15-30˚ curvature were divided randomly into four groups (n=15). Each group was instrumented up to apical size of 25 using Reciproc, ProTaper Universal, Neolix and Hyflex...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28807646/elevated-renal-pelvic-pressures-during-pcnl-risks-higher-postoperative-pain-and-longer-hospital-stay
#6
Muhannad Alsyouf, Samuel Abourbih, Benjamin West, Herbert Hodgson, D Duane Baldwin
PURPOSE: Renal pelvic pressure (RPP) may vary during percutaneous nephrolithotomy (PCNL). The purpose of this study was to determine the relationship between endoscope caliber, renal pelvic pressure, hospital stay and postoperative pain. MATERIALS AND METHODS: A review of 20 PCNLs with ureteroscopic guidance and renal pelvic pressure monitoring was performed. The ureteroscope working channel was connected to a pressure transducer and utilized to determine RPP at baseline, when irrigating using a 26 Fr rigid nephroscope, a 16 Fr flexible nephroscope and during suction...
August 11, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28807451/the-137-cs-activity-concentration-of-suspended-and-dissolved-fractions-in-irrigation-waters-collected-from-the-80%C3%A2-km-zone-around-tepco-s-fukushima-daiichi-nuclear-power-station
#7
Hirofumi Tsukada, Satoshi Nihira, Takashi Watanabe, Satoru Takeda
Fifty-four samples of irrigation water were collected in 2014 from agricultural ponds, rivers, and dams within the 80 km zone around TEPCO's Fukushima Daiichi Nuclear Power Station (FDNPS). The samples were filtered with a 0.45 μm pore-size membrane filter to produce suspended and dissolved fractions. The (137)Cs activity concentration of the suspended fraction varied from 1.5 to 300 Bq g(-1) dry weight and was significantly higher than that in the soil around each sampling site. The range of (137)Cs activity concentrations in the dissolved fraction varied over three orders of magnitude at 0...
August 11, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28807380/reconstruction-after-osteomyelitis-of-the-midfoot-from-high-pressure-washer-injury
#8
Matthew M Reiner, Wissam E Khoury, Audley Mackel, Duane J Ehredt, Mark C Razzante
Reports of ballistic injures to the extremities typically include those involving gunshot wounds. However, high-pressure washer injuries frequently lead to equally damaging injuries. These injuries should not be overlooked, because they can result in high morbidity and complication rates. Similar to the open fracture protocol, these injuries require prompt debridement and irrigation with administration of antibiotics to avoid limb loss. The present case report identified a delay in the treatment protocol that left limited options for the patient...
August 11, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28806553/thiacloprid-adsorption-and-leaching-in-soil-effect-of-the-composition-of-irrigation-solutions
#9
José Antonio Rodríguez-Liébana, M Dolores Mingorance, Aránzazu Peña
Pressure on groundwater resources has increased during the last decades due to the growing demand, especially in arid and semiarid regions, such as the Mediterranean basin, with frequent drought periods. In order to partially remediate this environmental problem of world concern, irrigation of agricultural lands with adequately treated wastewaters (TWW) is becoming a common management practice. The complex composition of these low-quality waters may influence the behavior of organic contaminants in soils. A calcareous soil with low organic carbon content was selected for the assessment of the adsorption and leaching of the neonicotinoid insecticide thiacloprid (THC)...
August 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28806550/discrepant-responses-of-the-electron-transfer-capacity-of-soil-humic-substances-to-irrigations-with-wastewaters-from-different-sources
#10
Wenbing Tan, Yuan Zhang, Beidou Xi, Xiaosong He, Rutai Gao, Caihong Huang, Hui Zhang, Dan Li, Xinyu Zhao, Meng Li, Li Li, Jie Jiang, Guoan Wang
An increasing area of agricultural land is irrigated with wastewater worldwide due to the scarcity of fresh water resources. Whether wastewater irrigations can affect the electron transfer capacity (ETC) of natural organic matter in soils is unclear. In this study, we assess the responses of the electron-accepting capacity (EAC) and electron-donating capacity (EDC) of soil humic substances (HS) to irrigations with wastewaters from different sources. We show that the EAC of soil HS increases and the EDC of soil HS decreases after irrigation with domestic wastewater...
August 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28806285/peritoneal-cavity-lavage-reduces-the-presence-of-mitochondrial-damage-associated-molecular-patterns-in-open-abdomen-patients
#11
Patricia Angellice Martinez-Quinones, Cameron Grant McCarthy, Caleb J Mentzer, Camilla Ferreira Wenceslau, Steven Barry Holsten, R Clinton Webb, Keith O'Malley
BACKGROUND: Mitochondrial damage-associated molecular patterns (mtDAMPs), such as mitochondrial DNA and N-formylated peptides, are endogenous molecules released from tissue after traumatic injury. mtDAMPs are potent activators of the innate immune system. They have similarities with bacteria, which allow mtDAMPs to interact with the same pattern recognition receptors and mediate the development of Systemic Inflammatory Response Syndrome (SIRS). Current recommendations for management of an open abdomen include returning to the operating room every 48 hours for peritoneal cavity lavage until definitive procedure...
August 12, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28805737/effects-of-short-term-set-aside-management-practices-on-soil-microorganism-and-enzyme-activity-in-china
#12
Guangyu Li, Cifang Wu
Set-aside farmland can effectively improve the self-rehabilitation of arable soil. Long-term set-asides however cannot satisfy provisionment, therefore the use of short-term set-asides to restore cultivated soil is a better option. Few studies have compared short-term set-aside patterns, and the effects of set-asides on soil microbial community and enzyme enzymes. We analyzed the bacterial structure, microbial biomass carbon/nitrogen and enzyme activity of farmland soil under different set-aside regimes in the Yellow River Delta of China...
August 14, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28804804/life-cycle-environmental-impacts-of-bioethanol-production-from-sugarcane-molasses-in-iran
#13
Saeid Shahvarooghi Farahani, Mohammad Amin Asoodar
In recent years, bioethanol from sugarcane molasses has been produced on an industrial scale in Iran. The aim of this study was to evaluate molasses-based bioethanol production from an environmental point of view. Data were collected from Debel Khazai agro-industry situated in southern region of Iran by using face-to-face interviews and annual statistics of 2010 to 2016 (6-year life cycle of sugarcane cultivation). Ten impact categories including abiotic depletion (AD), acidification (AC), eutrophication (EP), global warming potential (GWP), ozone layer depletion (OLD), human toxicity (HT), freshwater aquatic ecotoxicity (FE), marine aquatic ecotoxicity (ME), terrestrial ecotoxicity (TE), and photochemical oxidation (PO) were selected based on CML methodology...
August 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28803205/water-footprint-assessment-for-crop-production-based-on-field-measurements-a-case-study-of-irrigated-paddy-rice-in-east-china
#14
Cao Xinchun, Wu Mengyang, Shu Rui, Zhuo La, Chen Dan, Shao Guangcheng, Guo Xiangping, Wang Weiguang, Tang Shuhai
Water footprint (WF) is a comprehensive measure of water consumption by human activities and can be used to assess the impact on both water volume and quality. This study aims to explore the feasibility of evaluating green, blue and grey WFs of crop production based on field measurements. The irrigated paddy rice grown in three different experimental sites in different typical irrigation districts in Huai'an, East China over 2011 to 2014 was taken as study case. With fixed irrigation and fertilization, on the basis of measuring field water and fertilizer balance at daily step, we calculated WF of crop production under different test treatments...
August 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28802568/the-application-of-suctioning-flexible-ureteroscopy-with-intelligent-pressure-control-in-treating-upper-urinary-tract-calculi-on-patients-with-a-solitary-kidney
#15
Jianrong Huang, Donghua Xie, Ruiping Xiong, Xiaolin Deng, Chengbing Huang, Difu Fan, Zuofeng Peng, Wen Qin, Min Zeng, Leming Song
OBJECTIVE: To investigate the usage of intelligently pressure-controlled flexible ureteroscopy (URS) in managing upper urinary tract calculi in patients with a solitary kidney. METHODS: Forty patients with a solitary kidney and upper urinary tract calculus were included in this study. All the patients underwent suctioning URS with intelligent control of renal pelvic pressure by connecting pressure-measuring suctioning ureteral access sheath to an irrigation and suctioning platform...
August 9, 2017: Urology
https://www.readbyqxmd.com/read/28801267/primum-non-nocere-the-effects-of-sodium-hypochlorite-on-dentin-as-used-in-endodontics
#16
Li-Sha Gu, Xue-Qing Huang, Brandon Griffin, Brian R Bergeron, David H Pashley, Li-Na Niu, Franklin R Tay
The medical literature is replete with the maxim 'primum non nocere', cautioning health care providers to avoid doing any harm to human subjects in their delivery of medical care. Sodium hypochlorite (NaOCl) is a well-established irrigant for root canal treatment because of its antimicrobial and organic tissue remnant dissolution capability. However, little is known about the deleterious effect of this strong oxidizing agent on the integrity of human mineralized dentin. Iatrogenically-induced loss of dentin integrity may precipitate post-treatment root fracture and has potential medico-legal complications...
August 8, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28800822/escherichia-coli-transfer-from-simulated-wildlife-feces-to-lettuce-during-foliar-irrigation-a-field-study-in-the-northeastern-united-states
#17
Daniel L Weller, Jasna Kovac, David J Kent, Sherry Roof, Jeffrey I Tokman, Erika Mudrak, Barbara Kowalcyk, David Oryang, Anna Aceituno, Martin Wiedmann
Wildlife intrusion has been associated with pathogen contamination of produce. However, few studies have examined pathogen transfer from wildlife feces to pre-harvest produce. This study was performed to calculate transfer coefficients for Escherichia coli from simulated wildlife feces to field-grown lettuce during irrigation. Rabbit feces inoculated with a 3-strain cocktail of non-pathogenic E. coli were placed in a lettuce field 2.5-72 h before irrigation. Following irrigation, the E. coli concentration on the lettuce was determined...
December 2017: Food Microbiology
https://www.readbyqxmd.com/read/28800518/the-implications-of-drought-and-water-conservation-on-the-reuse-of-municipal-wastewater-recognizing-impacts-and-identifying-mitigation-possibilities
#18
Quynh K Tran, David Jassby, Kurt A Schwabe
As water agencies continue to investigate opportunities to increase resilience and local water supply reliability in the face of drought and rising water scarcity, water conservation strategies and the reuse of treated municipal wastewater are garnering significant attention and adoption. Yet a simple water balance thought experiment illustrates that drought, and the conservation strategies that are often enacted in response to it, both likely limit the role reuse may play in improving local water supply reliability...
July 27, 2017: Water Research
https://www.readbyqxmd.com/read/28800075/biofilms-in-endodontics-current-status-and-future-directions
#19
REVIEW
Prasanna Neelakantan, Monica Romero, Jorge Vera, Umer Daood, Asad U Khan, Aixin Yan, Gary Shun Pan Cheung
Microbiota are found in highly organized and complex entities, known as biofilms, the characteristics of which are fundamentally different from microbes in planktonic suspensions. Root canal infections are biofilm mediated. The complexity and variability of the root canal system, together with the multi-species nature of biofilms, make disinfection of this system extremely challenging. Microbial persistence appears to be the most important factor for failure of root canal treatment and this could further have an impact on pain and quality of life...
August 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28799963/factors-associated-with-health-related-quality-of-life-in-patients-with-open-fractures
#20
Sheila Sprague, Brad A Petrisor, Kyle J Jeray, Paula McKay, Taryn Scott, Diane Heels-Ansdell, Emil H Schemitsch, Susan Liew, Gordon H Guyatt, Stephen D Walter, Mohit Bhandari
OBJECTIVES: To analyze FLOW data to identify baseline patient, injury, fracture, and treatment factors associated with lower HRQL at 12-months post-fracture. DESIGN: Prognostic study using data from a prospective randomized controlled trial. SETTING: 31 clinical centers in the United States, Canada, Australia, and India. PATIENTS/PARTICIPANTS: 1427 open fracture patients from the FLOW trial with complete 12-month Short Form-12 (SF-12) follow-up assessment and no missing data for selected baseline factors...
July 26, 2017: Journal of Orthopaedic Trauma
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