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https://www.readbyqxmd.com/read/28453404/effects-of-biofilter-media-depth-and-moisture-content-on-removal-of-gases-from-a-swine-barn
#1
Tongshuai Liu, Hongmin Dong, Zhiping Zhu, Bin Shang, Fubin Yin, Wanqin Zhang, Tanlong Zhou
Media depth (MD) and moisture content (MC) are two important factors that greatly influence biofilters performance. The purpose of this study was to investigate the combined effect of MC and MD on removing ammonia (NH3), hydrogen sulfide (H2S), and nitrous oxide (N2O) from swine barns. Biofiltration performance of different MDs and MCs combination based on the mixed medium of wood chips and compost were monitored. A 3×3 factorial design was adopted, which included three levels of the two factors (MC: 45%, 55%, and 67% (wet basis); MD: 0...
April 28, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28444029/-risk-of-exposure-to-heatstroke-in-sugarcane-workers-in-s%C3%A3-o-paulo-state-brazil
#2
Rodrigo Cauduro Roscani, Daniel Pires Bitencourt, Paulo Alves Maia, Alvaro Cesar Ruas
Environmental heat is an aggravating factor for sugarcane workers, and manual cane cutting is one of the heavy work activities that favor the generation of metabolic heat. This can combine with other precarious working conditions to produce heatstroke, potentially leading to serious complications and even death. The study aimed to quantify the risk of overheating in sugarcane cutters in São Paulo, Brazil. Drawing on a specific methodology, the study used four years of data to estimate the Globe Thermometer Wet Bulb Index based on light, moderate, and heavy activities...
April 20, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/28442706/nitric-oxide-no-mediates-the-inhibition-of-form-deprivation-myopia-by-atropine-in-chicks
#3
Brittany J Carr, William K Stell
Myopia is the most common childhood refractive disorder. Atropine inhibits myopia progression, but its mechanism is unknown. Here, we show that myopia-prevention by atropine requires production of nitric oxide (NO). Form-deprivation myopia (FDM) was induced in week-old chicks by diffusers over the right eye (OD); the left eye (OS) remained ungoggled. On post-goggling days 1, 3, and 5, OD received intravitreally 20 µL of phosphate-buffered saline (vehicle), or vehicle plus: NO source: L-arginine (L-Arg, 60-6,000 nmol) or sodium nitroprusside (SNP, 10-1,000 nmol); atropine (240 nmol); NO inhibitors: L-NIO or L-NMMA (6 nmol); negative controls: D-Arg (10 µmol) or D-NMMA (6 nmol); or atropine plus L-NIO, L-NMMA, or D-NMMA; OS received vehicle...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28441038/phytoextraction-of-nitrogen-and-phosphorus-by-crops-grown-in-a-heavily-manured-dark-brown-chernozem-under-contrasting-soil-moisture-conditions
#4
Ikechukwu Agomoh, Xiying Hao, Francis Zvomuya
Repeated uptake of excess nutrients by crops in soils with a long history of manure application may be a viable option for reducing the nutrient levels. In this greenhouse study, we examined the effectiveness of six 40-day cycles of barley, canola, corn, oat, pea, soybean, and triticale, all grown under two moisture regimes (100% and 50% soil field capacity, SFC), at extracting nitrogen (N) and phosphorus (P) from a Dark Brown Chernozem that had received 180 Mg ha(-1) (wet wt.) of beef cattle feedlot manure annually for 38 years...
April 25, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28439767/a-bacillus-subtilis-strain-as-probiotic-in-poultry-selection-based-on-in-vitro-functional-properties-and-enzymatic-potentialities
#5
Houda Hmani, Lobna Daoud, Mouna Jlidi, Karim Jalleli, Manel Ben Ali, Adel Hadj Brahim, Mansour Bargui, Alaeddine Dammak, Mamdouh Ben Ali
We have proposed and validate an in vitro probiotic selection, based on enzymatic potentialities associated to well-established probiotic functional properties. A new Bacillus subtilis HB2 isolate, selected based on its high extracellular enzyme production, was chosen as a probiotic candidate for application as animal feed supplement. The HB2 strain showed an excellent acid and bile salts tolerance, a strong adhesion to chick enterocytes and produced antimicrobials against pathogens. An in vivo trial in poultry farming was conducted to evaluate the HB2 probiotic performance...
April 24, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28437138/epidemiology-of-basil-downy-mildew
#6
Yigal Cohen, Yariv Ben-Naim, Lidan Falach, Evgenia Rubin
Basil downy mildew (BDM) caused by the oomycete Peronospora belbahrii is a destructive disease of sweet basil (Ocimum basilicum) worldwide. It has originated in Uganda in the 1930's and recently spread to Europe, Middle East, Americas and the Far East. Seed transmission may be responsible to its quick global spread. The pathogen attacks leaf blades, producing chlorotic lesions with ample dark asexual spores on the lower leaf surface. Oospores may occur in the mesophyll of infected leaves. The asexual spores germinate on a wet leaf surface within 2h and penetrate into the epidermis within 4h...
April 24, 2017: Phytopathology
https://www.readbyqxmd.com/read/28424950/estimated-work-ability-in-warm-outdoor-environments-depends-on-the-chosen-heat-stress-assessment-metric
#7
Peter Bröde, Dusan Fiala, Bruno Lemke, Tord Kjellstrom
With a view to occupational effects of climate change, we performed a simulation study on the influence of different heat stress assessment metrics on estimated workability (WA) of labour in warm outdoor environments. Whole-day shifts with varying workloads were simulated using as input meteorological records for the hottest month from four cities with prevailing hot (Dallas, New Delhi) or warm-humid conditions (Managua, Osaka), respectively. In addition, we considered the effects of adaptive strategies like shielding against solar radiation and different work-rest schedules assuming an acclimated person wearing light work clothes (0...
April 19, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28422604/examination-of-intramuscular-and-skin-temperature-decreases-produced-by-the-powerplay-intermittent-compression-cryotherapy
#8
Jennifer Ostrowski
CONTEXT: Previous research has found ice bags are more effective at lowering intramuscular temperature than gel packs. Recent studies have evaluated intramuscular temperature cooling decreases of ice bag versus GameReady, and with the PowerPlay system wetted ice bag inserts, however intramuscular decreases elicited by PowerPlay with the standard frozel gel pack inserts have not been examined. OBJECTIVE: Evaluate rate and magnitude of cooling using PowerPlay with frozen gel pack option (PP-gel), PowerPlay with wetted ice bag option (PP-ice), and control (no treatment) on skin and intramuscular temperature (2cm sub-adipose)...
April 19, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28420825/colchicine-improves-survival-left-ventricular-remodeling-and-chronic-cardiac-function-after-acute-myocardial-infarction
#9
Koichiro Fujisue, Koichi Sugamura, Hirofumi Kurokawa, Junichi Matsubara, Masanobu Ishii, Yasuhiro Izumiya, Koichi Kaikita, Seigo Sugiyama
BACKGROUND: Several studies have reported that colchicine attenuated the infarct size and inflammation in acute myocardial infarction (MI). However, the sustained benefit of colchicine administration on survival and cardiac function after MI is unknown. It was hypothesized that the short-term treatment with colchicine could improve survival and cardiac function during the recovery phase of MI.Methods and Results:MI was induced in mice by permanent ligation of the left anterior descending coronary artery...
April 18, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28413464/anti-climacterium-effects-of-pomegranate-concentrated-solutions-in-ovariectomized-ddy-mice
#10
Su Jin Kang, Beom Rak Choi, Seung Hee Kim, Hae Yeon Yi, Hye Rim Park, Chang Hyun Song, Sae Kwang Ku, Young Joon Lee
In the present study, the complex anti-climacterium potential of standardized pomegranate concentrated solution (PCS) was investigated using bilateral ovariectomy (OVX) female ddY mice. Changes in body weight and gain during experimental periods, food consumption, serum estradiol levels, total body and abdominal fat densities, abdominal fat pads, and uterus weights were observed, along with the histopathology of abdominal fat pads and uterus for anti-obesity and estrogenic effects. In addition, liver weights, serum aspartate aminotransferase (AST), alanine aminotransferase (ALT) levels, and histopathological inspections were performed to explore the hepato-protective effects...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28411050/impact-of-wet-aerobic-pretreatments-on-cellulose-accessibility-and-bacterial-communities-in-rape-straw
#11
Jiang-Hao Tian, Anne-Marie Pourcher, Ariane Bize, Alaa Wazeri, Pascal Peu
A new pretreatment method of lignocellulosic biomass was explored by using a wet aerobic process with an alkaline lignin and a mineral salt solution. This treatment significantly improved structural modification of rape straw used as substrate model in this study. Change in cellulose accessibility to cellulase of rape straw rose up to six fold within the first days of this pretreatment without generated significant modification of van Soest lignocellulose fractionation. The biological pretreatment apply to rape straw induced a high microbial activity revealed by quantitative PCR and sequencing techniques, suggesting that bacteria including Xanthomonadales and Sphingobacteriales may be involved in this lignocellulosic biomass transformation...
March 27, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28410751/mizagliflozin-a-novel-selective-sglt1-inhibitor-exhibits-potential-in-the-amelioration-of-chronic-constipation
#12
Toshihiro Inoue, Masaaki Takemura, Nobuhiko Fushimi, Yoshikazu Fujimori, Tomoya Onozato, Takao Kurooka, Tetsuya Asari, Hiroo Takeda, Mamoru Kobayashi, Hironori Nishibe, Masayuki Isaji
Chronic constipation is a highly common functional gastrointestinal disorder that adversely affects patient quality of life. At present, limited therapeutic options are available for the treatment of chronic constipation, which indicates the need for new therapeutic agents. Herein, we report the potential of mizagliflozin, a novel selective sodium glucose co-transporter 1 (SGLT1) inhibitor, for the amelioration of chronic constipation. Mizagliflozin's inhibitory activity against SGLTs was evaluated by an in vitro assay of cells transiently expressing SGLTs...
April 11, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28396975/an-evaluation-of-molybdenum-toxicity-to-the-oligochaete-tubifex-tubifex-and-early-life-stages-of-brown-trout-salmo-trutta
#13
Brett T Lucas, Claudio Quinteros, Charlene Burnett-Seidel, James R Elphick
Limited data are available describing the aquatic toxicity of molybdenum in freshwater environments, making it difficult to assess the aquatic risk to freshwater organisms. In order to increase available information on the aquatic toxicity of molybdenum, a 96-h LC50 test with the oligochaete Tubifex tubifex and an 85-day development test using brown trout, Salmo trutta, were conducted. The T. tubifex test resulted in an LC50 value of 2782 mg/L. No adverse effects were observed on brown trout survival or length in the concentrations tested, however an IC10 value for growth (wet weight) was determined to be 202 mg/L...
April 10, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28393527/investigation-of-pesticide-penetration-and-persistence-on-harvested-and-live-basil-leaves-using-surface-enhanced-raman-scattering-mapping
#14
Tianxi Yang, Bin Zhao, Amanda J Kinchla, John M Clark, Lili He
Understanding pesticide behavior in plants is important for effectively applying pesticides and in reducing pesticide exposures from ingestion. This study aimed to investigate the penetration and persistence of pesticides applied on harvested and live basil leaves. Surface-enhanced Raman scattering (SERS) mapping was applied for in situ and real-time tracking of pesticides over time using gold nanoparticles as probes. The results showed that, after surface exposure of 30 min to 48 h, pesticides (10 mg/L) penetrated more rapidly and deeply into the live leaves than the harvested leaves...
April 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28386431/february-precipitation-in-the-wintering-grounds-of-the-lesser-whitethroat-sylvia-curruca-is-it-a-cue-for-migration-onset
#15
Irith Aloni, Shai Markman, Yaron Ziv
Numerous studies report shifts in bird migration phenology, presumably owing to global warming. However, most studies focus on migration patterns in the Northern Hemisphere. In this study, we investigated associations between weather conditions in African wintering grounds of the lesser whitethroat, Sylvia curruca, and spring arrival time in Eilat, Israel. Using multivariate regression models, we analysed a 30-year dataset in order to examine correlations between median springtime arrival and 46 climate variables of the wintering quarters...
February 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28380563/a-novel-approach-to-estimating-nitrous-oxide-emissions-during-wetting-events-from-single-timepoint-flux-measurements
#16
Brian W Davis, Brian A Needelman, Michel A Cavigelli, Stephanie A Yarwood, Jude E Maul, Gwendolyn A Bagley, Steven B Mirsky
Precipitation and irrigation induce pulses of NO emissions in agricultural soils, but the magnitude, duration, and timing of these pulses remain uncertain. This uncertainty makes it difficult to accurately extrapolate emissions from unmeasured time periods between chamber sampling events. Therefore, we developed a modeling protocol to predict NO emissions from data collected daily for 7 d after wetting events. Within a cover crop-based corn ( L.) production system in Beltsville, MD, we conducted the 7-d time series during four time periods representing a range of corn growth stages in 2013 and 2014...
March 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28379104/the-use-of-a-chitosan-dressing-with-silver-in-the-management-of-paediatric-burn-wounds-a-pilot-study
#17
S Massand, F Cheema, S Brown, W J Davis, B Burkey, P M Glat
OBJECTIVE: Traditional burn dressings demonstrate unfavourable tendencies of shrinking when wet and failing to maintain their integrity when manipulated. To overcome these obstacles, gel-forming fibre dressings have emerged as an alternative. Our objective was to observe the clinical properties and healing ability in the setting of burn wounds in a paediatric centre of a chitosan-based dressing containing silver. METHODS: A sample of 12 partial-thickness burns in 10 children were identified for treatment with the chitosan-based silver dressing...
April 1, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28367843/effect-of-obesity-on-the-prognostic-impact-of-atrial-fibrillation-in-heart-failure-with-preserved-ejection-fraction
#18
Mayuko Yagawa, Yuji Nagatomo, Yuki Izumi, Keitaro Mahara, Hitonobu Tomoike, Yasuyuki Shiraishi, Takashi Kohno, Atsushi Mizuno, Ayumi Goda, Shun Kohsaka, Tsutomu Yoshikawa
BACKGROUND: Although obesity is associated with left ventricular hypertrophy, diastolic dysfunction, and occurrence of atrial fibrillation (AF), obese heart failure (HF) patients have a more favorable clinical outcome (obesity paradox). The clinical impact of AF on obese or lean HF patients has not been fully elucidated.Methods and Results:We analyzed 1,681 patients who were enrolled in the West Tokyo Heart Failure Registry (WET-HF Registry), a multicenter, prospective cohort registry from 2005 through 2014...
March 28, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28365118/effect-of-increasing-the-proportion-of-dietary-concentrate-on-gastrointestinal-tract-measurements-and-brush-border-enzyme-activity-in-holstein-steers
#19
P Górka, B L Schurmann, M E Walpole, A Błońska, S Li, J C Plaizier, Z M Kowalski, G B Penner
The aim of this study was to determine the time course for adaptation of the reticulo-rumen, omasum, abomasum, and small intestine in response to an abrupt increase in the proportion of grain in the diet. Adaptive responses include tissue and digesta mass, small intestinal length, and brush border enzyme activity in the duodenum, proximal jejunum, and ileum. Twenty-five Holstein steers (213 ± 23 kg; 5 to 7 mo of age) were blocked by body weight, and within block were randomly assigned to 1 of 5 treatments: the control diet (CTRL; 92% chopped grass hay and 8% mineral and vitamin supplement on a dry matter basis) or a moderate grain diet (MGD; 50% chopped grass hay, 42% rolled barley grain, and 8% mineral and vitamin supplement) that was fed for 3 (MGD3), 7 (MGD7), 14 (MGD14), or 21 d (MGD21)...
March 29, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28360931/mechanisms-for-the-anti-obesity-actions-of-bofutsushosan-in-high-fat-diet-fed-obese-mice
#20
Shinjiro Kobayashi, Yuki Kawasaki, Tatsuo Takahashi, Hironori Maeno, Masaaki Nomura
BACKGROUND: The Kampo medicine bofutsushosan (BTS; Pulvis ledebouriellae compositae; Fang Feng Tong Sheng San) has been used as an anti-obesity treatment in overweight patients. In this study, we assessed the underlying physiological changes induced by BTS in obese mice maintained on a high-fat diet. METHODS: Male ICR mice were fed a 60% kcal fat diet for 5 weeks starting at 4 weeks of age and then fed the same diet with administration of water (control) or aqueous BTS extract (1...
2017: Chinese Medicine
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