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https://www.readbyqxmd.com/read/28938774/evaluation-of-encapsulated-sodium-butyrate-on-growth-performance-energy-digestibility-gut-development-and-salmonella-colonization-in-broilers
#1
J D Liu, H O Bayir, D E Cosby, N A Cox, S M Williams, J Fowler
Two experiments were conducted to determine the effect of an encapsulated sodium butyrate (Na-B) with targeted releasing times on broiler performance, energy digestibility, intestinal morphology, and ceca Salmonella colonization. In experiment 1, 3 different Na-B products (CMA, CMP, and CMS) were evaluated following a challenge with a nalidixic acid-resistant Salmonella typhimurium (STNAR). Cobb-Cobb male birds were placed 8 per pen into 6 replicates for each treatment. Treatments included 6 Na-B treatments (500 and 1,000 ppm of each product) plus 2 control (non-challenged and challenged)...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938770/application-of-bacteriophages-to-reduce-salmonella-contamination-on-workers-boots-in-rendering-processing-environment
#2
C Gong, X Jiang, J Wang
Workers' boots are considered one of the re-contamination routes of Salmonella for rendered meals in the rendering-processing environment. This study was conducted to evaluate the efficacy of a bacteriophage cocktail for reducing Salmonella on workers' boots and ultimately for preventing Salmonella re-contamination of rendered meals. Under laboratory conditions, biofilms of Salmonella Typhimurium avirulent strain 8243 formed on rubber templates or boots were treated with a bacteriophage cocktail of 6 strains (ca...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28937649/synthesis-and-enhanced-ethanol-gas-sensing-properties-of-the-g-c%C3%A2-n%C3%A2-nanosheets-decorated-tin-oxide-flower-like-nanorods-composite
#3
Yan Wang, Jianliang Cao, Cong Qin, Bo Zhang, Guang Sun, Zhanying Zhang
Flower-like SnO₂/g-C₃N₄ nanocomposites were synthesized via a facile hydrothermal method by using SnCl₄·5H₂O and urea as the precursor. The structure and morphology of the as-synthesized samples were characterized by using the X-ray powder diffraction (XRD), electron microscopy (FESEM and TEM), and Fourier transform infrared spectrometer (FT-IR) techniques. SnO₂ displays the unique 3D flower-like microstructure assembled with many uniform nanorods with the lengths and diameters of about 400-600 nm and 50-100 nm, respectively...
September 22, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28937165/a-facile-solvent-mediated-self-assembly-silver-nanoparticle-mirror-substrate-for-quantitatively-improved-surface-enhanced-raman-scattering
#4
Yanqi Qu, Chen Tan, Zhiyun Zhang, Lili He
Herein, a facile solvent mediated silver nanoparticle (AgNP) mirror was introduced as a reproducible and sensitive surface-enhanced Raman scattering (SERS) substrate. The AgNP mirror was fabricated based on commercially available citrate coated AgNPs via a facile and unique water-solvent interface assembly method without using any electrical equipment. By adding 0.2 mg ml(-1) citrate coated AgNPs dropwise into a mediating solvent, self-assembled AgNP mirrors were formed instantly and gradually settled down at the bottom...
September 22, 2017: Analyst
https://www.readbyqxmd.com/read/28936868/a-microwave-flow-detector-for-gradient-elution-liquid-chromatography
#5
Duye Ye, Weizheng Wang, David Moline, Md Saiful Islam, Feng Chen, Pingshan Wang
This study presents a microwave flow detector for liquid chromatography (LC) applications. The detector is based on a tunable microwave interferometer (MIM) with a vector network analyzer (VNA) for signal measurement and a computer for system control. A microstrip-line based flow cell with a volume of ~0.31 μL was built and incorporated in the MIM. With syringe pump injections, the detector is evaluated by measuring a few common chemicals in DI water at multiple frequencies between 0.98 GHz and 7.09 GHz and shows a minimum detectable quantity (MDQ) of less than 30 ng...
September 22, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28935929/a-high-selective-methanol-gas-sensor-based-on-molecular-imprinted-ag-lafeo3-fibers
#6
Qian Rong, Yumin Zhang, Chao Wang, Zhongqi Zhu, Jin Zhang, Qingju Liu
Ag-LaFeO3 molecularly imprinted polymers (ALMIPs) were fabricated, which provided special recognition sites to methanol. Then ALMIPs fiber 1, fiber 2 and fiber 3 were prepared using filter paper, silk and carbon fibers template, respectively. Based on the observation of X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and Nitrogen adsorption surface area analyzer (BET), the structure, morphology and surface area of the fibers were characterized. The ALMIPs fibers (fiber 1, fiber 2 and fiber 3) show excellent selectivity and good response to methanol...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935613/maternal-exposure-of-balb-c-mice-to-indoor-no2-and-allergic-asthma-syndrome-in-offspring-at-adulthood-with-evaluation-of-dna-methylation-associated-th2-polarization
#7
Huifeng Yue, Wei Yan, Xiaotong Ji, Rui Gao, Juan Ma, Ziyu Rao, Guangke Li, Nan Sang
BACKGROUND: Fetal stress has been proposed to be associated with diseases in both children and adults. Epidemiological studies suggest that maternal exposure to nitrogen dioxide (NO2) contributes to increased morbidity and mortality of offspring with allergic asthma later in life. OBJECTIVES: We aimed to test whether maternal NO2 exposure causes allergic asthma-related consequences in offspring absent any subsequent lung provocation and whether this exposure enhances the likelihood of developing allergic asthma or the intensity of developed allergic airway disease following postnatal allergic sensitization and challenge...
September 13, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28935004/intestinal-parasites-and-anthelmintic-treatments-in-a-laboratory-colony-of-wild-caught-african-pouched-rats-cricetomys-ansorgei
#8
Cassandra O Cullin, Matthew S Sellers, Erin R Rogers, Kathleen E Scott, Danielle N Lee, Alexander G Ophir, Todd A Jackson
African giant pouched rats (Cricetomys spp.) are large rodents native to subSaharan Africa. Wild-caught pouched rats identified as Cricetomys ansorgei (n = 49) were imported from Tanzania. A survey of gastrointestinal parasitism by fecal flotation revealed the presence of multiple parasites, including Nippostrongylus spp., Heterakis spp., Trichuris spp., Hymenolepis spp., Raillietina spp., and Eimeria spp. Oral self-administered fenbendazole (150 ppm), topical moxidectin (2 mg/kg), pyrantel pamoate (15 mg/kg), piperazine (100 mg/kg daily), and injectable ivermectin (0...
October 1, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28934694/development-and-implementation-of-a-pass-fail-field-friendly-method-for-detecting-sildenafil-in-suspect-pharmaceutical-tablets-using-a-handheld-raman-spectrometer-and-silver-colloids
#9
Adam Lanzarotta, Lisa Lorenz, JaCinta S Batson, Cheryl Flurer
A simple, fast, sensitive and effective pass/fail field-friendly method has been developed for detecting sildenafil in suspect Viagra and unapproved tablets using handheld Raman spectrometers and silver colloids. The method involves dissolving a portion of a tablet in water followed by filtration and addition of silver colloids, resulting in a solution that can be measured directly through a glass vial. Over one hundred counterfeit Viagra and unapproved tablets were examined on three different devices during the method development phase of the study...
September 8, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28933736/pulsed-polarization-based-nox-sensors-of-ysz-films-produced-by-the-aerosol-deposition-method-and-by-screen-printing
#10
Jörg Exner, Gaby Albrecht, Daniela Schönauer-Kamin, Jaroslaw Kita, Ralf Moos
The pulsed polarization technique on solid electrolytes is based on alternating potential pulses interrupted by self-discharge pauses. Since even small concentrations of nitrogen oxides (NOx) in the ppm range significantly change the polarization and discharge behavior, pulsed polarization sensors are well suited to measure low amounts of NOx. In contrast to all previous investigations, planar pulsed polarization sensors were built using an electrolyte thick film and platinum interdigital electrodes on alumina substrates...
July 26, 2017: Sensors
https://www.readbyqxmd.com/read/28930636/the-role-of-exact-exchange-and-relativistic-approximations-in-calculating-19-f-magnetic-shielding-in-solids-using-a-cluster-ansatz
#11
Fahri Alkan, Sean T Holmes, Cecil Dybowski
Calculations of (19)F magnetic shielding in various materials are presented. In calculations on gas-phase molecules, the variation of magnetic shielding with the amount of Hartree-Fock exchange (HFX) in the functional demonstrates that excellent agreement with experiment is obtained with an admixture of 50%, here denoted PBE0 (50%). Calculations at the PBE, PBE0 (25%), and PBE0 (50%) levels on 10 crystalline organofluorines and 15 crystalline inorganic fluorides, in which a cluster <I>ansatz</I> is used to model the lattice environment, were performed...
September 20, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28930146/co%C3%A2-sensing-characteristics-of-a-la%C3%A2-o%C3%A2-sno%C3%A2-stacked-structure-with-micromachined-hotplates
#12
Tatsuya Iwata, Kyosuke Matsuda, Kazuhiro Takahashi, Kazuaki Sawada
Demand for the detection of carbon dioxide (CO 2 ) is increasing in various fields, including air-quality monitoring, healthcare, and agriculture. On the other hand, smart gas sensors, in which micromachined gas sensors are integrated with driving circuits, are desirable toward the development of the society of the internet of things. In this study, micromachined hotplate-based CO 2 sensors were fabricated and their characteristics were investigated. The sensors have La 2 O 3 /SnO 2 stacked layers as a sensing material and Pt interdigitated electrodes...
September 20, 2017: Sensors
https://www.readbyqxmd.com/read/28928914/reducing-radiation-exposure-in-an-electrophysiology-lab-with-introduction-of-newer-fluoroscopic-technology
#13
Munish Sharma, Koroush Khalighi
The use of fluoroscopic devices exposes patients and operators to harmful effects of ionizing radiation in an electrophysiology (EP) lab. We sought to know if the newer fluoroscopic technology (Allura Clarity) installed in a hybrid EP helps to reduce prescribed radiation dose. We performed radiation dose analysis of 90 patients who underwent various procedures in the EP lab at a community teaching hospital after the introduction of newer fluoroscopic technology in June of 2016. Watchman device insertion, radiofrequency ablation procedures, permanent pacemaker (PPM)/implantable cardioverter defibrillator (ICD) placement and battery changes were included in the study to compare radiation exposure during different procedures performed commonly in an EP lab...
June 7, 2017: Clinics and Practice
https://www.readbyqxmd.com/read/28928539/effect-of-unsaponifiable-matter-extracted-from-pistacia-khinjuk-fruit-oil-on-the-oxidative-stability-of-olive-oil
#14
Javad Tavakoli, Parviz Estakhr, Aniseh Zarei Jelyani
The present study was carried out to investigate the improvement of oxidative stability of refined olive oil using various concentrations of unsaponifiable matters extracted from Pistacia khinjuk fruit oil (UFO). For further elucidation of UFO antioxidative power, tertbutylhydroquinone (TBHQ) was used in an olive oil sample, too. Oxidative stability of olive oil samples without and with different levels of UFO (50, 100, 250, 500, 750 and 1000 ppm) and TBHQ (100 ppm) were studied via evaluation of conjugated diene value, carbonyl value, oil/oxidative stability index, acid value and total tocopherol (TT) contents through 8 h thermal process at 170 °C...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28928533/control-of-aflatoxigenic-strains-by-cinnamomum-porrectum-essential-oil
#15
Oratai Sukcharoen, Pramote Sirirote, Dusanee Thanaboripat
Essential oil from the bark of Cinnamomum porrectum (Roxb.) Kosterm was obtained by hydrodistillation using a Clevenger-type system for 3 h and identified by gas chromatography-mass spectrometry. The compounds were safrole (93.9%), elemicine (4.3%) and methyl eugenol (1.7%). The effect of essential oil on mycelial growth, sporulation, and aflatoxin B1 production of Aspergillus parasiticus IMI 283883 and Aspergillus flavus IMI 242684 was evaluated using contact and vapor treatments. Aflatoxin B1 was determined using the Enzyme-linked immunosorbent assay...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28928008/effects-of-anti-lipid-peroxidation-of-punica-granatum-fruit-extract-in-endothelial-cells-induced-by-plasma-of-severe-pre-eclamptic-patients
#16
Isri Nasifah, Setyawati Soeharto, Mukhamad Nooryanto
BACKGROUND: Preeclampsia is a pregnancy disorder characterized by hypertension and proteinuria. This disorder involves oxidative stress and changes in endothelial homeostasis. OBJECTIVE: This study was aimed to seek whether an ethanolic extract of Punica granatum fruit inhibits 8-iso-PGFα formation and modulates nitric oxide (NO) in endothelial cells induced by plasma from pre-eclamptic patients. MATERIAL AND METHODS: Endothelial cells were cultured from human umbilical vein endothelial cells...
September 15, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/28927103/lack-of-chemopreventive-efficacy-of-metformin-in-rodent-models-of-urinary-bladder-head-and-neck-and-colon-intestine-cancer
#17
Matthew D Thompson, Ronald A Lubet, David L Mccormick, Margie L Clapper, Ann M Bode, M Margaret Juliana, Fariba Moeinpour, Clinton J Grubbs
Metformin is a biguanide employed in treating type II diabetes. Its potential efficacy for treating cancer has been demonstrated epidemiologically (lower cancer incidence in metformin users compared with users of sulfonylureas or insulin) and mechanistically, primarily in cell culture. Metformin decreases the levels of insulin-like growth factor 1 and secondarily inhibits the mammalian target of rapamycin pathway to exhibit anticancer effects. The current study examined its cancer preventive efficacy in multiple standard in situ arising cancer models...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926373/exposure-to-mobile-source-air-pollution-in-early-life-and-childhood-asthma-incidence-the-kaiser-air-pollution-and-pediatric-asthma-study
#18
Audrey Flak Pennington, Matthew J Strickland, Mitchel Klein, Xinxin Zhai, Josephine T Bates, Carolyn Drews-Botsch, Craig Hansen, Armistead G Russell, Paige E Tolbert, Lyndsey A Darrow
BACKGROUND: Early-life exposure to traffic-related air pollution exacerbates childhood asthma, but it is unclear what role it plays in asthma development. METHODS: The association between exposure to primary mobile source pollutants during pregnancy and during infancy and asthma incidence by ages 2 through 6 was examined in the Kaiser Air Pollution and Pediatric Asthma Study, a racially diverse birth cohort of 24,608 children born between 2000 and 2010 and insured by Kaiser Permanente Georgia...
September 18, 2017: Epidemiology
https://www.readbyqxmd.com/read/28924612/water-on-the-surface-of-the-moon-as-seen-by-the-moon-mineralogy-mapper-distribution-abundance-and-origins
#19
Shuai Li, Ralph E Milliken
A new thermal correction model and experimentally validated relationships between absorption strength and water content have been used to construct the first global quantitative maps of lunar surface water derived from the Moon Mineralogy Mapper near-infrared reflectance data. We find that OH abundance increases as a function of latitude, approaching values of ~500 to 750 parts per million (ppm). Water content also increases with the degree of space weathering, consistent with the preferential retention of water originating from solar wind implantation during agglutinate formation...
September 2017: Science Advances
https://www.readbyqxmd.com/read/28922624/quantification-of-voc-emissions-from-paint-spraying-on-a-construction-site-using-solid-phase-microextraction-devices
#20
Wen-Hsi Cheng, Hsiao-Lin Huang, Kang-Shin Chen, Yu-Jen Chang
The objective of this study was to measure the emission of, and personal exposure to workers, volatile organic compound (VOC) during paint spraying on a construction site. Needle trap samplers (NTSs), which are a green solid phase microextraction sampling technology, were used to obtain air samples at a large music exhibition center. The standard active sampling method using charcoal tubes and a personal air pump, Method 1501, was simultaneously utilized at the sampling sites to assess the workers' VOC exposures...
September 18, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
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