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https://www.readbyqxmd.com/read/29149723/residual-effects-of-biochar-on-growth-photosynthesis-and-cadmium-uptake-in-rice-oryza-sativa-l-under-cd-stress-with-different-water-conditions
#1
Muhammad Rizwan, Shafaqat Ali, Tahir Abbas, Muhammad Adrees, Muhammad Zia-Ur-Rehman, Muhammad Ibrahim, Farhat Abbas, Muhammad Farooq Qayyum, Rab Nawaz
Soil cadmium (Cd) contamination and drought stress are among the main issues hindering global food security. Biochar has been used to reduce metal uptake by plants and water stress mitigation, but long-term residual effects of biochar under Cd stress at different moisture levels needs to be investigated. A following rice (Oryza sativa L.) was grown after wheat on Cd-contaminated soil amended with different levels of biochar (0, 3.0, and 5.0%, w/w). Thirty five days old plants were irrigated with three moisture levels including zero drought as a control (1-2 cm water layer on soil), mild drought (MD, 50% of soil water holding capacity, WHC), and severe drought (SD, 35% of soil WHC) for an accompanying 35 days...
November 14, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29149719/tissue-specific-bioaccumulation-of-long-chain-perfluorinated-carboxylic-acids-and-halogenated-methylbipyrroles-in-dall-s-porpoises-phocoenoides-dalli-and-harbor-porpoises-phocoena-phocoena-stranded-in-northern-japan
#2
Yukiko Fujii, Yoshihisa Kato, Kentarou Sakamoto, Takashi Matsuishi, Harada H Kouji, Akio Koizumi, Osamu Kimura, Tetsuya Endo, Koichi Haraguchi
This study investigated accumulation of perfluoroalkyl substances (PFASs), persistent organochlorines (OCs), and naturally produced halogenated compounds (NHCs), including brominated methylbipyrroles and methoxylated bromodiphenyl ethers, in liver, blood, and blubber from Dall's porpoises (Phocoenoides dalli) and harbor porpoises (Phocoena phocoena) stranded in Hokkaido, northern Japan. Profiles of the PFASs were dominated by perfluoroundecanoic acid and perfluorotridecanoic acid, both of which accounted for 70% of the total measured PFAS concentrations in both porpoise species...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149685/simultaneous-drug-identification-in-urine-of-sexual-assault-victims-by-using-liquid-chromatography-tandem-mass-spectrometry
#3
Hei Hwa Lee, Suen Chi Chen, Jong Feng Lee, Hsin Yu Lin, Bai Hsiun Chen
According to domestic and international epidemiological investigation, the proportion of substance involved sexual assault has the trend of ascent. In the past, laboratory methods that investigated urine sample of the sexual assault victims was to screen with enzyme immunoassay and then confirmed with mass spectrometry. The objective of the study is to simultaneously identify abused drugs in 126 decoded urine samples of sexual assault victims by liquid chromatography tandem mass spectrometry. The instrument was operated in multiple-reaction monitoring with an electro-spray positive ionization mode...
November 11, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29149657/the-mechanical-behavior-of-nacre-across-length-scales
#4
Hariprasad Gopalan, Atul H Chokshi
Nacre achieves excellent mechanical properties with a relatively simple hierarchical structure. Analyses suggest that a significant gain in toughness is realized with a modest reduction in strength, with increasing levels of hierarchy. This study probes the role of different hierarchical length scales in governing the strength and modulus of nacre using a combination of bulk compression tests, microindentation and nanoindentation tests. The variability in the measured properties is assessed through Weibull analyses...
October 18, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29149640/change-to-ecosystem-properties-through-changing-the-dominant-species-impact-of-pteridium-aquilinum-control-and-heathland-restoration-treatments-on-selected-soil-properties
#5
G Milligan, K E Booth, E S Cox, R J Pakeman, M G Le Duc, L Connor, S Blackbird, R H Marrs
It is well known that soils are influenced by the plant species that grow in them. Here we consider the effects of management-induced changes to plant communities and their soils during restoration within a 20-year manipulative experiment where the aim was to change a late-successional community dominated by the weed, Pteridium aquilinum, to an earlier-successional grass-heath one. The ecological restoration treatments altered the above- and below-ground components of the community substantially. Untreated plots maintained a dense Pteridium cover with little understory vegetation, cutting treatments produce significant reductions of Pteridium, whereas herbicide (asulam) produced significant immediate reductions in Pteridium but regressed towards the untreated plots within 10 years...
November 14, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29149554/boron-dissolved-and-dust-atmospheric-inputs-to-a-forest-ecosystem-northeastern-france
#6
Philippe Roux, Marie Pierre Turpault, Gil Kirchen, Paul-Olivier Redon, Damien Lemarchand
Boron concentrations and isotopic compositions of atmospheric dust and dissolved depositions were monitored over a two-years period (2012-2013) in the forest ecosystem of Montiers (Northeastern France). This time series allows the determination of the boron atmospheric inputs to this forest ecosystem and contributes to refine our understanding of the sources and processes that control the boron atmospheric cycle. Mean annual dust and dissolved boron atmospheric depositions are comparable in size (13 g.ha-1...
November 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29149476/clinical-parameters-before-and-after-the-transition-to-dialysis
#7
Dugan W Maddux, Len A Usvyat, Terry Ketchersid, Yue Jiao, Tommy C Blanchard, Peter Kotanko, Frank M van der Sande, Jeroen P Kooman, Franklin W Maddux
INTRODUCTION: The transition from pre-dialysis chronic kidney disease (CKD) to post-dialysis start is a critical period associated with high patient mortality and increased hospital admissions. Little is known about the trends of key clinical and laboratory parameters through this time of transition to start dialysis. METHODS: De-identified data including demographics, vital signs, lab results, and eGFR from the Fresenius Medical Care-CKD Registry were analyzed to determine trends in clinical and laboratory parameters through the time of transition from 12 months pre-dialysis start to 12 months post-dialysis start...
November 17, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/29149439/trends-in-utilization-of-outpatient-respiratory-syncytial-virus-prophylaxis-with-palivizumab-among-medicaid-and-commercially-insured-infants
#8
Melissa Pavilack, Robert A Clifford, Tara Gonzales, Amanda M Kong, Sally Wade, Kimmie K McLaurin
INTRODUCTION: Palivizumab is indicated for the prevention of respiratory syncytial virus (RSV) infection in high-risk children. Previous palivizumab utilization studies examined prior authorization claims but did not examine utilization within insured populations as a whole. This study describes outpatient palivizumab utilization trends and characterizes high-risk infants receiving palivizumab within Medicaid- and commercially insured populations. METHODS: Infants born July 1, 2003 through June 30, 2013 were identified in the MarketScan(®) Multistate Medicaid and Commercial claims databases...
November 17, 2017: Infectious Diseases and Therapy
https://www.readbyqxmd.com/read/29149380/psa-kinetics-following-primary-focal-cryotherapy-hemiablation-in-organ-confined-prostate-cancer-patients
#9
Michael Kongnyuy, Shahidul Islam, Alfred K Mbah, Daniel M Halpern, Glenn T Werneburg, Kaitlin E Kosinski, Connie Chen, David J Habibian, Jeffrey T Schiff, Anthony T Corcoran, Aaron E Katz
PURPOSE: We aim to evaluate prostate-specific antigen (PSA) trends in post-primary focal cryotherapy (PFC) patients. MATERIALS AND METHODS: This was an institutional review board-approved retrospective study of PFC patients from 2010 to 2015. Patients with at least one post-PFC PSA were included in the study. Biochemical recurrence (BCR) was determined using the Phoenix criteria. PSA bounce was also assessed. We analyzed rates of change of PSA over time of post-PFC between BCR and no BCR groups...
November 17, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/29149352/prognostic-potential-of-markers-of-bone-turnover-in-delayed-healing-tibial-diaphyseal-fractures
#10
Malhar Kumar, Dnyaneshwar Shelke, Saumil Shah
INTRODUCTION: Clinical and radiographic examinations detect delayed or nonunion only after the event has occurred. Biochemical markers of bone turnover (BTMs) are promising laboratory tools that offer an early insight into the likelihood of delayed union. We hypothesized that BTMs display temporal variations following fractures and the behavior of BTMs differ between normal and delayed union of fractures. METHODS: This was a prospective study of patients with closed fracture of tibia treated with intramedullary, interlocking nailing...
November 17, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29149336/military-neurosurgery-socioeconomic-data-benefits-challenges-and-opportunities
#11
Richard Menger, J Will Robbins, Randy Bell
Military conflict and neurosurgery date back to antiquity. Neurosurgery's development is intimately linked with Harvey Cushing's military experience. Previous papers highlighted unique opportunities and socioeconomic challenges facing military neurosurgeons. Here, we provide objective data from military neurosurgeons surrounding these issues.Internet survey responses were solicited from current, separated, and retired military neurosurgeons regarding workforce issues and their perception of military neurosurgery...
November 15, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29149327/focused-time-lapse-analysis-reveals-novel-aspects-of-human-fertilization-and-suggests-new-parameters-of-embryo-viability
#12
G Coticchio, M Mignini Renzini, P V Novara, M Lain, E De Ponti, D Turchi, R Fadini, M Dal Canto
STUDY QUESTION: Can focused application of time-lapse microscopy (TLM) lead to a more detailed map of the morphokinetics of human fertilization, revealing novel or neglected aspects of this process? SUMMARY ANSWER: Intensive harnessing of TLM reveals novel or previously poorly characterised phenomena of fertilization, such as a cytoplasmic wave (CW) preceding pronuclear formation and kinetics of pronuclear chromatin polarization, thereby suggesting novel non-invasive biomarkers of embryo quality...
November 15, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29149279/impact-of-isolating-clostridium-difficile-carriers-on-the-burden-of-isolation-precautions-a-time-series-analysis
#13
Yasi Xiao, Bianka Paquet-Bolduc, Christophe Garenc, Philippe Gervais, Sylvie Trottier, Jean-François Roussy, Jean Longtin, Vivian G Loo, Yves Longtin
Background: The isolation of asymptomatic Clostridium difficile (CD) carriers may decrease the incidence of hospital-associated C. difficile infections (CDI), but its impact on isolation precaution needs is unknown. Methods: Time series analysis to investigate the impact of isolating CD carriers on the burden of isolation precautions from 2008 to 2016 in a Canadian hospital. To account for the changes in C. difficile infection control policies, the series was divided into three intervention periods...
November 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29149273/the-efficacy-and-safety-of-bronchial-thermoplasty-in-severe-persistent-asthma-on-extended-follow-up
#14
A O'Reilly, I Browne, D Watchorn, J J Egan, S Lane
Background: Asthma is a common condition and there remains a subset of patients who are poorly controlled on maximal therapy. Bronchial thermoplasty is a bronchoscopic therapy using radio frequency energy to reduce airway smooth muscle which has been shown to improve asthma control although further evidence regarding long term efficacy and safety is required. Aim: We aimed to demonstrate safety and efficacy of bronchial thermoplasty on extended follow up. Our initial experience with this group was previously reported in 2016 where patients were shown to have a significant improvement in Asthma Control Test (ACT) scores 1 year post treatment8...
November 15, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29149268/mitral-valve-replacement-with-the-novel-tribio-and-an-established-stented-bioprosthesis-in-a-sheep-model
#15
Sina Stock, Hans-Hinrich Sievers, Doreen Richardt, Michael Scharfschwerdt
OBJECTIVES: Heart valve replacement with a bioprosthesis is one of the most frequently performed procedures in cardiac surgery and represents a highly effective therapy to relieve diseased heart valves. Nevertheless, as postoperatively elevated transvalvular gradients and prosthesis-patient mismatch are reported as shortcomings of the procedure or of the currently used devices, there is a need for novel bioprostheses with improved haemodynamics. This study presents preclinical haemodynamic results after mitral valve replacement with the novel TRIBIO bioprosthesis (TRIBIO) compared with an established bioprosthesis in a sheep model...
November 15, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29149259/pancreatic-cancer-incidence-trends-evidence-from-the-surveillance-epidemiology-and-end-results-seer-population-based-data
#16
Vanessa L Gordon-Dseagu, Susan S Devesa, Michael Goggins, Rachael Stolzenberg-Solomon
Background: Annual pancreatic cancer incidence rates have been increasing. We examine pancreatic cancer incidence trends by demographics and histologic type. Methods: Data from the Surveillance, Epidemiology and End Results (SEER) registries were available to assess temporal trends and pancreatic cancer rates from 1974 to 2013. Results: Pancreatic cancer incidence rates declined between the 1970s and 1990s but increased from 1994 to 2013 among White males...
November 14, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29149237/multimorbidity-among-persons-living-with-hiv-in-the-u-s
#17
Cherise Wong, Stephen J Gange, Richard D Moore, Amy C Justice, Kate Buchacz, Alison G Abraham, Peter F Rebeiro, John R Koethe, Jeffrey N Martin, Michael A Horberg, Cynthia M Boyd, Mari M Kitahata, Heidi M Crane, Kelly A Gebo, M John Gill, Michael J Silverberg, Frank J Palella, Pragna Patel, Hasina Samji, Jennifer Thorne, Charles S Rabkin, Angel Mayor, Keri N Althoff
Background: Age-associated conditions are increasingly common among persons living with HIV. A longitudinal investigation of their accrual is needed given their implications on clinical care complexity. We examined trends in the co-occurrence of age-associated conditions among persons living with HIV receiving clinical care, and differences in their prevalence by demographic subgroup. Methods: This cohort study was nested within the North American AIDS Cohort Collaboration on Research and Design...
November 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29149148/current-impact-and-application-of-abuse-deterrent-opioid-formulations-in-clinical-practice
#18
Ya-Han Lee, Daniel L Brown, Hsiang-Yin Chen
BACKGROUND: Abuse-deterrent formulations (ADFs) represent one novel strategy for curbing the potential of opioid abuse. OBJECTIVE: We aim to compare and contrast the characteristics and applications of current abuse-deterrent opioid products in clinical practice. METHODS: Literature searches were conducted in databases (Pubmed Medline, International Pharmaceutical Abstracts, Google Scholar) and official reports. Relevant data were screened and organized into: 1) epidemiology of opioid abuse, 2) mitigation strategies for reducing opioid abuse, 3) development of ADFs, and 4) clinical experience with these formulations...
November 2017: Pain Physician
https://www.readbyqxmd.com/read/29149139/reversal-of-growth-of-utilization-of-interventional-techniques-in-managing-chronic-pain-in-medicare-population-post-affordable-care-act
#19
Laxmaiah Manchikanti, Amol Soin, Dharam P Mann, Sanjay Bakshi, Vidyasagar Pampati, Joshua A Hirsch
BACKGROUND: Over the past 2 decades, the increase in the utilization of interventional techniques has been a cause for concern. Despite multiple regulations to reduce utilization of interventional techniques, growth patterns continued through 2009. A declining trend was observed in a previous evaluation; however, a comparative analysis of utilization patterns of interventional techniques has not been performed showing utilization before and after the enactment of the Affordable Care Act (ACA)...
November 2017: Pain Physician
https://www.readbyqxmd.com/read/29149116/solving-the-problem-of-smoking-in-the-polish-enterprises-during-2003-2015
#20
Elżbieta Korzeniowska, Krzysztof Puchalski
OBJECTIVES: Tobacco smoking is a major organizational, economical, and public relations-related (PR-related) problem for the company. Moreover, it is an important health determinant of the working population. The paper reports the results of the research which analyzed the current state and the tobacco control activities' transformations undertaken by Polish employers between 2003 and 2015. MATERIAL AND METHODS: Data comes from the research performed in 2006, 2010 and 2015, involving random- selected representative samples of Polish enterprises, employing no fewer than 50 employees...
November 17, 2017: International Journal of Occupational Medicine and Environmental Health
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