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https://www.readbyqxmd.com/read/28437775/effect-of-nitrification-inhibitors-on-mitigating-n2o-and-no-emissions-from-an-agricultural-field-under-drip-fertigation-in-the-north-china-plain
#1
Di Tian, Yuanyuan Zhang, Yizhen Zhou, Yujing Mu, Junfeng Liu, Chenglong Zhang, Pengfei Liu
N2O and NO emissions from a winter wheat-summer maize rotation field with five different treatments in the North China Plain (NCP) were comparably investigated from 8 October 2014 to 11 October 2015. Compared with the treatments with only flood or drip irrigation, evident emission peaks of N2O and NO from the fertilization treatments with flood irrigation (A-Flood) and with drip fertigation (A-Drip) were observed after each fertilization event, whereas their emissions from the fertilization treatments with nitrification inhibitors under drip fertigation (A+DCD-Drip and A+Nitrapyrin-Drip) were greatly suppressed...
April 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28437772/shifts-in-soil-microbial-metabolic-activities-and-community-structures-along-a-salinity-gradient-of-irrigation-water-in-a-typical-arid-region-of-china
#2
Lijuan Chen, Changsheng Li, Qi Feng, Yongping Wei, Hang Zheng, Yan Zhao, Yongjiu Feng, Huiya Li
Saline water irrigation can change soil environment, which thereby influence soil microbial process. Based on a field experiment, the shifts in soil microbial metabolic activities and community structures under five irrigation salinities were studied using Biolog and metagenomic methods in this study. The results demonstrated that microbial metabolic activities were greatly restrained in saline water irrigated soils, as average well color development (AWCD) reduced under all saline water irrigation treatments...
April 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28437487/crop-and-varietal-diversification-of-rainfed-rice-based-cropping-systems-for-higher-productivity-and-profitability-in-eastern-india
#3
B Lal, Priyanka Gautam, B B Panda, R Raja, Teekam Singh, R Tripathi, M Shahid, A K Nayak
Rice-rice system and rice fallows are no longer productive in Southeast Asia. Crop and varietal diversification of the rice based cropping systems may improve the productivity and profitability of the systems. Diversification is also a viable option to mitigate the risk of climate change. In Eastern India, farmers cultivate rice during rainy season (June-September) and land leftovers fallow after rice harvest in the post-rainy season (November-May) due to lack of sufficient rainfall or irrigation amenities...
2017: PloS One
https://www.readbyqxmd.com/read/28437197/pressure-irrigation-of-surgical-incisions-and-traumatic-wounds
#4
Donald E Fry
BACKGROUND: Pressure irrigation of surgical incisions and traumatic wounds is commonly used to prevent infections. Commercial pressure irrigation devices have proliferated rapidly, but scientific validation of clinical benefit or appropriate use remains uncertain. METHODS: The published experimental and clinical investigations of pressure irrigation have been reviewed since the introduction of the Waterpik device in 1967 to identify the evidence for use to prevent soft tissue infections associated with injury wounds or surgical incisions...
March 1, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28437194/comparison-of-three-final-irrigation-activation-techniques-effects-on-canal-cleanness-smear-layer-removal-and-dentinal-tubule-penetration-of-two-root-canal-sealers
#5
Elmas Turkel, Emel Olga Onay, Mete Ungor
OBJECTIVE: The aim of this study was to compare three final irrigation activation techniques with respect to their effects on debridement efficacy, smear layer removal, and dentinal tubule penetration of two different root canal sealers. BACKGROUND DATA: Different applications to improve the delivery of irrigating solutions within the root canal system are currently being investigated, as not all of the mechanisms and effects of these techniques have been clearly identified...
February 22, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28435372/histologic-evaluation-of-the-effect-of-mineral-trioxide-aggregate-fillapex-as-a-root-canal-sealer-in-rat-teeth-submitted-to-late-replantation
#6
Manuel Marques Ferreira, Maria Filomena Botelho, Margarida Abrantes, Lina Carvalho, Eunice Carrilho
OBJECTIVE: This study aims to analyze the effect of new root canal based silicate cement, in rat teeth after late replantation, comparing with calcium hydroxide (CH) in preventing tooth root resorption. MATERIALS AND METHODS: The study group included 16 Wistar rats in which the upper right central incisors were extracted and were left on a worktable for 60 min, simulating a case of tooth avulsion, after had been anesthetized. One group, (Group I), the canals were filled with CH past, before replantation...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28435359/comparative-antimicrobial-efficacy-of-selected-root-canal-irrigants-on-commonly-isolated-microorganisms-in-endodontic-infection
#7
Sandeep Dubey, Suparna Ganguly Saha, Balakrishnan Rajkumar, Tapan Kumar Dhole
OBJECTIVE: This study aims to evaluate and compare the antimicrobial efficacy of three selected root canal irrigants (BioPure MTAD, metronidazole, aztreonam) against microbes commonly isolated from polymicrobial microbiota of root canal infection. MATERIALS AND METHODS: This study was designed with four experimental groups (Group I - Bacteroides fragilis, Group II - Propionibacterium acnes, Group III - Enterococcus faecalis, Group IV - Candida albicans) based on the microbes selected for the study...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28435269/efficacy-of-silk-fibroin-nano-silver-against-staphylococcus-aureus-biofilms-in-a-rabbit-model-of-sinusitis
#8
Minghui Jia, Zhongchun Chen, Yongwei Guo, Xin Chen, Xia Zhao
BACKGROUND: Staphylococcus aureus biofilms contribute significantly to the recalcitrant nature of chronic rhinosinusitis. In previous studies, it has been shown that silk fibroin-nano silver solution can eliminate S. aureus biofilms in vitro, which suggests a potential role of this novel agent in the treatment of biofilm-associated diseases, such as sinusitis. OBJECTIVE: The aim of this study was to investigate the efficacy of silk fibroin-nano silver solution as a topical anti-biofilm agent in a rabbit model of sinusitis...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28434697/poor-outcomes-of-irrigation-and-debridement-in-acute-periprosthetic-joint-infection-with-antibiotic-impregnated-calcium-sulfate-beads
#9
Michael A Flierl, Brian M Culp, Kamil T Okroj, Bryan D Springer, Brett R Levine, Craig J Della Valle
BACKGROUND: One proposed strategy to increase the success of irrigation and debridement with implant retention for the treatment of acute periprosthetic joint infection (PJI) is the use of dissolvable antibiotic-impregnated calcium sulfate beads to provide a local depot of antibiotics. The purpose of this study was to evaluate the outcome of such an approach. METHODS: Thirty-two patients with acute hematogenous (18 patients; 1 bilateral) or acute postoperative (14 patients) PJIs who underwent irrigation and debridement with implant retention and addition of antibiotic-impregnated calcium sulfate beads were retrospectively reviewed...
March 29, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28434695/the-influence-of-a-failed-irrigation-and-debridement-on-the-outcomes-of-a-subsequent-2-stage-revision-knee-arthroplasty
#10
Scott R Nodzo, Keely K Boyle, Allina A Nocon, Michael W Henry, David J Mayman, Geoffrey H Westrich
BACKGROUND: Previous work has suggested a failed irrigation and debridement (I&D) before a 2-stage exchange negatively impacts the outcome of the subsequent 2-stage revision. METHODS: This was a retrospective review of 132 patients who underwent a 2-stage exchange without prior I&D (2-Stage), and 45 patients had a failed I&D before their 2-stage exchange (I&D+2Stage) between April 2009 and April 2015. Charts were reviewed for patient demographics, presenting inflammatory laboratory values, type of antibiotic spacer used, surgical details, microbiology data, length of postoperative antibiotic treatment, and reoperation...
March 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28434045/slow-drilling-speeds-for-single-drill-implant-bed-preparation-experimental-in-vitro-study
#11
R A Delgado-Ruiz, E Velasco Ortega, G E Romanos, S Gerhke, I Newen, J L Calvo-Guirado
AIMS: To evaluate the real-time bone temperature changes during the preparation of the implant bed with a single-drill protocol with different drill designs and different slow drilling speeds in artificial type IV bone. MATERIALS AND METHODS: For this experimental in vitro study, 600 implant bed preparations were performed in 10 bovine bone disks using three test slow drilling speeds (50/150/300 rpm) and a control drilling speed (1200 rpm). The temperature at crestal and apical areas and time variations produced during drilling with three different drill designs with similar diameter and length but different geometry were recorded with real-life thermographic analysis...
April 22, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28434014/prospective-open-label-evaluation-of-long-term-low-dose-doxycycline-for-difficult-to-treat-chronic-rhinosinusitis-with-nasal-polyps
#12
A C Pinto Bezerra Soter, T F Bezerra, R Pezato, T R Teles Abdo, R M Pilan, F R Pinna, P Gevaert, T van Zele, C Bachert, R L Voegels
BACKGROUND: This study aimed to assess clinical outcomes of long-term low-dose oral doxycycline therapy in difficult-to-treat chronic rhinosinusitis with polyps (CRSwNP). METHODS: This was a prospective, open-label study of 60 patients with difficult-to-treat CRSwNP who had undergone endoscopic sinus surgery. Patients were divided into two groups: 28 received nasal steroids, saline irrigation, and doxycycline (200 mg on the first day, followed by 100 mg once daily) for 12 weeks, while 30 received only nasal steroids and saline irrigation...
April 23, 2017: Rhinology
https://www.readbyqxmd.com/read/28432993/chemical-biological-and-dna-markers-for-tracing-slaughterhouse-effluent
#13
P J Harvey, M P Taylor, H K Handley, S Foster, M R Gillings, A J Asher
Agricultural practices, if not managed correctly, can have a negative impact on receiving environments via waste disposal and discharge. In this study, a chicken slaughter facility on the rural outskirts of Sydney, Australia, has been identified as a possible source of persistent effluent discharge into a peri-urban catchment. Questions surrounding the facility's environmental management practices go back more than four decades. Despite there having never been a definitive determination of the facility's impact on local stream water quality, the New South Wales Environment Protection Authority (NSW EPA) has implemented numerous pollution reduction requirements to manage noise and water pollution at the slaughter facility...
April 19, 2017: Environmental Research
https://www.readbyqxmd.com/read/28431380/recent-aspects-of-uranium-toxicology-in-medical-geology
#14
REVIEW
Geir Bjørklund, Olav Albert Christophersen, Salvatore Chirumbolo, Olle Selinus, Jan Aaseth
Uranium (U) is a chemo-toxic, radiotoxic and even a carcinogenic element. Due to its radioactivity, the effects of U on humans health have been extensively investigated. Prolonged U exposure may cause kidney disease and cancer. The geological distribution of U radionuclides is still a great concern for human health. Uranium in groundwater, frequently used as drinking water, and general environmental pollution with U raise concerns about the potential public health problem in several areas of Asia. The particular paleo-geological hallmark of India and other Southern Asiatic regions enhances the risk of U pollution in rural and urban communities...
April 18, 2017: Environmental Research
https://www.readbyqxmd.com/read/28430720/the-effect-of-insertion-technique-on-temperatures-for-standard-and-self-drilling-external-fixation-pins
#15
Sarah Manoogian, Adam K Lee, James C Widmaier
OBJECTIVES: No studies have assessed the effects of parameters associated with insertion temperature in modern self-drilling external fixation pins. The current study assessed how varying the presence of irrigation, insertion speed, and force impacted the insertion temperatures of two types of standard and self-drilling external fixation half pins. METHODS: Seventy tests were conducted with ten trials for four conditions on self-drilling pins and three conditions for standard pins...
April 6, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28430706/rare-pleurostomophora-richardsiae-mass-causing-transient-nasolacrimal-duct-obstruction
#16
Md Shahid Alam, D Vaidehi, K Lily Therese, Mohammad Javed Ali
Transient nasolacrimal duct obstruction secondary to a mass lesion compressing the sac or sac-duct junction is rare. We report a case of a young female who presented to us with complaints of watering and a mass lesion in the lacrimal sac region. An organized perilacrimal mass filled with thick pultaceous material was noted during surgery. Following the drainage of the mass lesion, irrigation of the lacrimal system was freely patent. Microbiological examination and DNA sequencing targeting interspacer region was suggestive of Pleurostomophora richardsiae species...
April 20, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28430340/transurethral-contact-ureterolithotripsy-in-gas-%C3%B0-%C3%B0-2-medium
#17
Dmitry O Korolev, Peter V Glybochko, Leonid M Rapoport, Dmitry G Tsarichenko
BACKGROUND: Transurethral intracorporeal lithotripsy is the modality of choice for the endoscopic disintegration of large, long-standing, radiolucent or high-density stones. Despite several advantages and proven benefits of contact ureterolithotripsy/ureterolithoextraction (CULT), the application of irrigation carries significant risks of untoward perioperative events including retrograde stone migration and postoperative pyelonephritis. METHODS: We describe a new technique - endoscopic intracorporeal lithotripsy in the gas (СО2) medium...
April 14, 2017: Urologia
https://www.readbyqxmd.com/read/28430024/cacao-phylloplane-the-first-battlefield-against-moniliophthora-perniciosa-the-causal-agent-of-witches-broom-disease
#18
Dayanne Silva Monteiro Almeida, Karina Peres Gramacho, Thyago H Santana Cardoso, Fabienne Micheli, Fátima Cerqueira Alvim, Carlos Priminho Priminho Pirovani
The phylloplane is the first contact surface between Theobroma cacao and the fungus Moniliophthora perniciosa, which causes witches' broom disease (WBD). We evaluated the index of short glandular trichomes (SGTs) in the cacao phylloplane and the effect of irrigation on the disease index of cacao genotypes with/without resistance to WBD, and identified proteins present in the phylloplane. The resistant and susceptible genotype CCN51 and Catongo presented a mean index of 1600 and 700 SGTs•cm-2, respectively...
April 21, 2017: Phytopathology
https://www.readbyqxmd.com/read/28429297/identification-of-qtls-for-yield-and-agronomic-traits-in-rice-under-stagnant-flooding-conditions
#19
Anshuman Singh, Jerome Carandang, Zennia Jean C Gonzaga, Bertrand C Y Collard, Abdelbagi M Ismail, Endang M Septiningsih
BACKGROUND: Stagnant flooding, where water of 25-50 cm remains until harvest time, is a major problem in rainfed lowland areas. Most of the Sub1 varieties, which can withstand around 2 weeks of complete submergence, perform poorly in these conditions. Hence, varieties tolerant of stagnant flooding are essential. RESULTS: This paper presents the first study to map QTLs associated with tolerance to stagnant flooding, along with a parallel study under normal irrigation, using an F7 mapping population consisting of 148 RILs derived from a cross of Ciherang-Sub1 and the stagnant-flooding tolerant line IR10F365...
December 2017: Rice
https://www.readbyqxmd.com/read/28429050/assessment-of-cr-ni-and-pb-pollution-in-rural-agricultural-soils-of-tonalite-trondjhemite-series-in-central-india
#20
Kriti Shukla, Bijendra Kumar, Rahul Agrawal, Kumari Priyanka, Madavi Venkatesh, Anshumali
Chromium (Cr), nickel (Ni) and lead (Pb) contamination was investigated in wheat cultivated rain-fed and irrigated rural agricultural soils (n = 31) of Tonalite-Trondjhemite Series in Central India. The soil sampling was carried out by using stratified random sampling method. The mean concentrations of Cr, Ni and Pb were 54.8, 38.1 and 68.9 mg/kg, respectively. The average values of enrichment factor (EF), geoaccumulation index (I geo ) and contamination factor (CF) followed the order as: Pb > Ni > Cr...
April 20, 2017: Bulletin of Environmental Contamination and Toxicology
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