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Sophia L-Y Ling, David McD Taylor, Jeffery Robinson
OBJECTIVE: The aim of this study is to determine the period prevalence, nature and causes of workplace chemical and toxin exposures reported to the Victorian Poisons Information Centre (VPIC). PATIENTS AND METHODS: All cases classified as 'workplace: acute' when entered into the VPIC database (June 2005-December 2013) were analysed. Data were collected on patient sex, the nature of the chemical or toxin, route of exposure and season. RESULTS: Overall, 4928 cases were extracted...
October 18, 2016: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
Sharon Downes, Darren Kriticos, Hazel Parry, Cate Paull, Nancy Schellhorn, Myron P Zalucki
Helicoverpa armigera is a major pest of agriculture, horticulture and floriculture throughout the old world and recently invaded parts of the new world. We overview of the evolution in thinking about the application of area-wide approaches to assist with its control by the Australian Cotton Industry to highlight important lessons and future challenges to achieving the same in the New World. An over-reliance of broad-spectrum insecticides led to Helicoverpa spp. in Australian cotton rapidly became resistant to DDT, synthetic pyrethroids, organophosphates, carbamates and endosulfan...
October 17, 2016: Pest Management Science
Hector R Vera-Avila, Jorge Urrutia-Morales, Mario A Espinosa-Martinez, Hector G Gamez-Vazquez, Hector Jimenez-Severiano, Eugenio Villagomez-Amezcua
The effect of goat nutritional condition on the response to biostimulation with sexually active males during different stages of anestrus was determined. Fifty-eight Criollo × Nubian females on high and low body mass index (BMI) diets were used. Each BMI group was divided into two for biostimulation with sexually active males during May (mid-anestrus) or July (transition period). Ovulatory responses to biostimulation were characterized from serum progesterone, as well as the delay for response (first and second ovulations followed by a normal length luteal phase, O-WNLP)...
October 17, 2016: Animal Science Journal, Nihon Chikusan Gakkaihō
Jan-Dieter Ludwigs, Markus Ebeling, Timothy B Fredricks, Roger C Murfitt, Steven Kragten
The registration of pesticides follows guidance published by the European Food Safety Authority, EFSA. As a default, the EFSA guidance document on risk assessment for birds and mammals assumes that animals feed exclusively on pesticide-treated fields. However, the guidance document suggests refining the risk via the proportion of food animals obtain from a treated field or specific crop (expressed via the so-called PT value). The EFSA guidance equalizes the portion of food taken from a treated area per day with the portion of time spent potentially foraging over the course of a day within this area...
October 18, 2016: Environmental Toxicology and Chemistry
Jeffrey P Stephens, Aaron B Stoler, Jason P Sckrabulis, Aaron J Fetzer, Keith A Berven, Scott D Tiegs, Thomas R Raffel
According to ecological stoichiometry (ES), the growth of a consumer with abundant resources should increase as body and resource stoichiometry become more similar. However, for organisms with complex life cycles involving distinct changes in biology, nutrient demands might change in response to ontogenetic changes in body stoichiometry. Tadpole growth and development has been found to be largely nitrogen (N) limited, as predicted for organisms developing N-rich tissues like muscle. However, tadpole metamorphosis includes periods of rapid development of phosphorus (P)-rich bones in preparation for a terrestrial lifestyle...
October 17, 2016: Oecologia
Xia Zhu-Barker, Shannon K Bailey, Kyaw Tha Paw U, Martin Burger, William R Horwath
The process of composting is a source of greenhouse gases (GHG) that contribute to climate change. We monitored three field-scale green waste compost windrows over a one-year period to measure the seasonal variance of the GHG fluxes. The compost pile that experienced the wettest and coolest weather had the highest average CH4 emission of 254±76gCday(-1) dry weight (DW) Mg(-1) and lowest average N2O emission of 152±21mgNday(-1) DW Mg(-1)compared to the other seasonal piles. The highest N2O emissions (342±41mgNday(-1) DW Mg(-1)) came from the pile that underwent the driest and hottest weather...
October 14, 2016: Waste Management
H Calvete-Sogo, I González-Fernández, H García-Gómez, R Alonso, S Elvira, J Sanz, V Bermejo-Bermejo
Ozone (O3) critical levels (CLe) are still poorly developed for herbaceous vegetation. They are currently based on single species responses which do not reflect the multi-species nature of semi-natural vegetation communities. Also, the potential effects of other factors like the nitrogen (N) input are not considered in their derivation, making their use uncertain under natural conditions. Exposure- and dose-response relationships were derived from two open-top chamber experiments exposing a mixture of 6 representative annual Mediterranean pasture species growing in natural soil to 4 O3 fumigation levels and 3 N inputs...
October 14, 2016: Environmental Pollution
Judy Kirk
No abstract text is available yet for this article.
November 2016: Journal of Renal Nutrition
Naomi A Hartley, Ellen Breen, Susan L Thibeault
Purpose: The purpose of this study was to document typical vocal health characteristics (including voice-related activities, behaviors, and symptomatology) of young adults attending college and to determine lifetime and point prevalence rates of voice disorders. Method: Undergraduates at University of Wisconsin-Madison completed an anonymous online survey detailing vocal use, symptomatology, impact, sociodemographics, and voice-related quality of life. Univariate analyses and multivariate regression models isolated risk factors for lifetime and point prevalence rates of a voice disorder...
October 17, 2016: Journal of Speech, Language, and Hearing Research: JSLHR
Antonio López-Orenes, María C Bueso, Héctor M Conesa, Antonio A Calderón, María A Ferrer
Soil pollution by heavy metals/metalloids (HMMs) is a problem worldwide. To prevent dispersion of contaminated particles by erosion, the maintenance of a vegetative cover is needed. Successful plant establishment in multi-polluted soils can be hampered not only by HMM toxicities, but also by soil nutrient deficiencies and the co-occurrence of abiotic stresses. Some plant species are able to thrive under these multi-stress scenarios often linked to marked fluctuations in environmental factors. This study aimed to investigate the metabolic adjustments involved in Zygophyllum fabago acclimative responses to conditions prevailing in HMM-enriched mine-tailings piles, during Mediterranean spring and summer...
October 14, 2016: Science of the Total Environment
Mingxia Huang, Motohiro Fujita, Wisinee Wisetjindawat
This paper presents an analysis of drivers' stopping and traversing behaviors during inter-green periods. Eight intersections were observed in Changchun, China both with and without countdown timers and/or video surveillance during summer and winter. The impacts of the devices on the drivers' behavior were examined and compared between the two seasons from a safety perspective. During winter abrupt braking on icy road can be very dangerous. The analysis was performed by dividing the approach leg into 10m intervals up to 90m upstream from the stop line...
October 14, 2016: Accident; Analysis and Prevention
Pamela Louise M Tolentino, Ate Poortinga, Hideki Kanamaru, Saskia Keesstra, Jerry Maroulis, Carlos Primo C David, Coen J Ritsema
The Philippines is one of the most vulnerable countries in the world to the potential impacts of climate change. To fully understand these potential impacts, especially on future hydrological regimes and water resources (2010-2050), 24 river basins located in the major agricultural provinces throughout the Philippines were assessed. Calibrated using existing historical interpolated climate data, the STREAM model was used to assess future river flows derived from three global climate models (BCM2, CNCM3 and MPEH5) under two plausible scenarios (A1B and A2) and then compared with baseline scenarios (20th century)...
2016: PloS One
Laura Bubba, Marianna Martinelli, Laura Pellegrinelli, Valeria Primache, Elisabetta Tanzi, Elena Pariani, Sandro Binda
BACKGROUND: Human parechovirus (HPeV) and enterovirus (EV) infections are widespread and can lead to a broad range of symptoms, from the common cold to severe disease. Due to the lack of Italian data, this 4-year retrospective cross-sectional study aimed to investigate the frequency, seasonality and molecular characteristics of EV and HPeV circulating in children younger than 5 years. METHODS: 812 samples were collected from children ≤5 years (56.5% males; median age: 20...
September 30, 2016: Pediatric Infectious Disease Journal
Nagah M Abo El-Fetoh, Naif G Alenezi, Nasser G Alshamari, Omar G Alenezi
BACKGROUND: Acne vulgaris is the most common cutaneous disorder affecting adolescents and young adults. Small, noninflamed acne lesions may not be more than a slight nuisance, but, in individuals with more severe inflammatory disease, pain, social embarrassment, and both physical and psychological scarring can be life altering. Despite its high prevalence, no previous community-based studies have been conducted in Arar, northern border of Kingdom of Saudi Arabia, addressing this issue...
September 2016: Journal of the Egyptian Public Health Association
Stella Cecchetti, Zuzana Tatar, Pilar Galan, Bruno Pereira, Céline Lambert, Gael Mouterde, Angela Sutton, Martin Soubrier, Maxime Dougados
OBJECTIVES: The relationship between vitamin D and rheumatoid arthritis (RA) activity remains controversial. RA is a cardiovascular risk factor. A low level of vitamin D may increase blood pressure (BP) and decrease HDL-cholesterol. OBJECTIVES: We aimed to determine the prevalence of vitamin D deficiency in RA patients compared to controls, and also to investigate the relationship between vitamin D and RA activity, and between vitamin D and cardiovascular risk factors...
September 30, 2016: Clinical and Experimental Rheumatology
Robert Marshall Beresford, Joy Lorraine Tyson, Warwick Ralph Henshall
A weather-based disease prediction model for bacterial canker of kiwifruit (known worldwide as Psa; Pseudomonas syringae pv. actinidiae biovar 3) was developed using a new mechanistic scheme for bacterial disease forecasters, the multiplication and dispersal concept. Bacterial multiplication is estimated from a temperature function, the M index, accumulated from hourly air temperature over 3 days for hours when the leaf canopy is wet. Rainfall provides free water to move inoculum to infection sites and the daily risk indicator, the R index, is the 3-day accumulation of the M index, output on days with total rainfall > 1 mm; otherwise R is zero...
October 17, 2016: Phytopathology
Edward Goldstein, Virginia E Pitzer, Justin J O'Hagan, Marc Lipsitch
Risks for disease in some population groups relative to others (relative risks) are usually considered to be consistent over time, though they are often modified by other, non-temporal factors. For infectious diseases, in which overall incidence often varies substantially over time, the patterns of temporal changes in relative risks can inform our understanding of basic epidemiologic questions. For example, recent work suggests that temporal changes in relative risks of infection over the course of an epidemic cycle can both be used to identify population groups that drive infectious disease outbreaks, and help elucidate differences in the effect of vaccination against infection (that is relevant to transmission control) compared with its effect against disease episodes (that reflects individual protection)...
September 28, 2016: Epidemiology
Gunilla Malm, Trine B Haugen, Lars Rylander, Aleksander Giwercman
A high sperm DNA fragmentation index (DFI) is associated with reduced fertility. DFI is influenced by the balance between reactive oxygen species and antioxidants. A circannual variation in melatonin, an antioxidant and free radical scavenger, could thus impact semen quality and fertility. The association between the major melatonin metabolite, urine 6-sulfatoxymelatonin (aMT6s), and DFI was analyzed in 110 Oslo men (south of the Arctic Circle) and 86  Tromsoe men (north of the Arctic Circle). Two semen analyses, summer and winter, and four urine samples (early/late summer; early/late winter), were analyzed...
October 14, 2016: Asian Journal of Andrology
Victor Grech, Dorota Zammit, Hagen Scherb
Males are usually born in excess of females. The sex ratio at birth (SR) is often expressed as the ratio of male to total births. A wide variety of factors have been shown to influence SR, including terrorist attacks, which have been shown to reduce SR. This paper reviews the effects on SR outcomes of the stressful events in France in 1968 (in association with the student and worker riots) and in Japan following the Aum Shinrikyo religious cult's attack on the Tokyo subway using sarin nerve gas in 1995. Both countries displayed seasonal variation in SR...
October 17, 2016: Journal of Biosocial Science
Rachel A Johnston, Kristina L Paxton, Frank R Moore, Robert K Wayne, Thomas B Smith
The annual migration of a bird can involve thousands of kilometers of non-stop flight, requiring accurately timed seasonal changes in physiology and behavior. Understanding the molecular mechanisms controlling this endogenous programme can provide functional and evolutionary insights into the circannual biological clock and the potential of migratory species to adapt to changing environments. Under naturally-timed photoperiod conditions, we maintained captive Swainson's thrushes (Catharus ustulatus) and performed RNA sequencing (RNA-Seq) of the ventral hypothalamus and optic chiasma to evaluate transcriptome-wide gene expression changes of individuals in migratory condition...
October 16, 2016: Molecular Ecology
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