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https://www.readbyqxmd.com/read/29166389/comparisons-of-management-practices-and-farm-design-on-australian-commercial-layer-and-meat-chicken-farms-cage-barn-and-free-range
#1
Angela Bullanday Scott, Mini Singh, Jenny-Ann Toribio, Marta Hernandez-Jover, Belinda Barnes, Kathryn Glass, Barbara Moloney, Amanda Lee, Peter Groves
There are few published studies describing the unique management practices, farm design and housing characteristics of commercial meat chicken and layer farms in Australia. In particular, there has been a large expansion of free range poultry production in Australia in recent years, but limited information about this enterprise exists. This study aimed to describe features of Australian commercial chicken farms, with particular interest in free range farms, by conducting on-farm interviews of 25 free range layer farms, nine cage layer farms, nine barn layer farms, six free range meat chicken farms and 15 barn meat chicken farms in the Sydney basin bioregion and South East Queensland...
2017: PloS One
https://www.readbyqxmd.com/read/29166361/the-impact-of-hepatectomy-time-of-the-liver-graft-on-post-transplant-outcome-a-eurotransplant-cohort-study
#2
Ina Jochmans, Steffen Fieuws, Ineke Tieken, Undine Samuel, Jacques Pirenne
OBJECTIVE: Assessing the effect of donor hepatectomy time on outcome after transplantation. SUMMARY OF BACKGROUND DATA: When blood supply in a deceased organ donor stops, ischemic injury starts. Livers are cooled to reduce cellular metabolism and minimize ischemic injury. This cooling is slow and livers are lukewarm during hepatectomy, potentially affecting outcome. METHODS: We used the Eurotransplant Registry to investigate the relationship between donor hepatectomy time and post-transplant outcome in 12,974 recipients of deceased-donor livers (January 1, 2004, to December 31, 2013)...
November 21, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/29166074/low-lying-vibronic-level-structure-of-the-ground-state-of-the-methoxy-radical-slow-electron-velocity-map-imaging-sevi-spectra-and-k%C3%A3-ppel-domcke-cederbaum-kdc-vibronic-hamiltonian-calculations
#3
Marissa L Weichman, Lan Cheng, Jongjin B Kim, John F Stanton, Daniel M Neumark
A joint experimental and theoretical study is reported on the low-lying vibronic level structure of the ground state of the methoxy radical using slow photoelectron velocity-map imaging spectroscopy of cryogenically cooled, mass-selected anions (cryo-SEVI) and Köppel-Domcke-Cederbaum (KDC) vibronic Hamiltonian calculations. The KDC vibronic model Hamiltonian in the present study was parametrized using high-level quantum chemistry, allowing the assignment of the cryo-SEVI spectra for vibronic levels of CH3O up to 2000 cm(-1) and of CD3O up to 1500 cm(-1) above the vibrational origin, using calculated vibronic wave functions...
June 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29166047/ortho-para-interconversion-in-cation-water-complexes-the-case-of-v-h2o-and-nb-h2o-clusters
#4
T B Ward, E Miliordos, P D Carnegie, S S Xantheas, M A Duncan
Vanadium and niobium cation-water complexes, V(+)(H2O) and Nb(+)(H2O), are produced by laser vaporization in a pulsed supersonic expansion, mass selected in a time-of-flight spectrometer, and studied with infrared photodissociation spectroscopy using rare gas atom (Ar, Ne) complex predissociation. The vibrational bands measured in the O-H stretching region contain K-type rotational sub-band structure, which provides insight into the structures of these complexes. However, rotational sub-bands do not exhibit the simple patterns seen previously for other metal ion-water complexes...
June 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29166046/fcc-hcp-coexistence-in-dense-thermo-responsive-microgel-crystals
#5
D Karthickeyan, R G Joshi, B V R Tata
Analogous to hard-sphere suspensions, monodisperse thermo-responsive poly (N-isopropyl acrylamide) (PNIPAM) microgel particles beyond a volume fraction (ϕ) of 0.5 freeze into face centered cubic (FCC)-hexagonal close packed (HCP) coexistence under as prepared conditions and into an FCC structure upon annealing. We report here FCC-HCP coexistence to be stable in dense PNIPAM microgel crystals (ϕ > 0.74) with particles in their deswollen state (referred to as osmotically compressed microgel crystals) and the FCC structure with particles in their swollen state by performing annealing studies with different cooling rates...
June 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29166013/slow-magnetic-relaxation-in-a-dysprosium-ammonia-metallocene-complex
#6
Selvan Demir, Monica D Boshart, Jordan F Corbey, David H Woen, Miguel I Gonzalez, Joseph W Ziller, Katie R Meihaus, Jeffrey R Long, William J Evans
We report the serendipitous discovery and magnetic characterization of a dysprosium bis(ammonia) metallocene complex, [(C5Me5)2Dy(NH3)2](BPh4) (1), isolated in the course of performing a well-established synthesis of the unsolvated cationic complex [(C5Me5)2Dy][(μ-Ph)2BPh2]. While side reactivity studies suggest that this bis(ammonia) species owes its initial incidence to impurities in the DyCl3(H2O)x starting material, we were able to independently prepare 1 and its tetrahydrofuran (THF) derivative, [(C5Me5)2Dy(NH3)(THF)](BPh4) (2), from the reaction of [(C5Me5)2Dy][(μ-Ph)2BPh2] with ammonia in THF...
November 22, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29165765/hypothermia-in-neonatal-hypoxic-ischemic-encephalopathy-hie
#7
G Liu, Z-G Li, J-S Gao
Neonatal hypoxic-ischemic encephalopathy (HIE) significantly affects neurodevelopment in infants and is also considered as an important cause of neonatal deaths worldwide. Medical research is being focused worldwide for the development of therapeutic avenues but it is still managed by supportive care. The latest studies in the above field have shown the efficacy of prolonged cooling of neonate's head or whole body at the age of 18 months (approx.) in providing relief from the pathological state of HIE. Moreover, hypothermia is the first reported therapeutic modality that proved beneficial for HIE young patients...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29165320/effect-of-high-carbon-incorporation-in-co-substrates-on-the-epitaxy-of-hexagonal-boron-nitride-graphene-heterostructures
#8
Alireza Khanaki, Hao Tian, Zhongguang Xu, Renjing Zheng, Yanwei He, Zhenjun Cui, Jingchuan Yang, Jianlin Liu
We carried out a systematic study of hexagonal boron nitride/graphene (h-BN/G) heterostructure growth by introducing high incorporation of carbon (C) source on a heated cobalt (Co) foil substrate followed by boron and nitrogen sources in a molecular beam epitaxy system. With the increase of C incorporation in Co, three distinct regions of h-BN/G heterostructures were observed from region (1) where the C saturation is not attained at the growth temperature (900 °C) and G is grown only by precipitation during cooling process to form a "G network" underneath the h-BN film; to region (2) where the Co substrate is just saturated by C atoms at the growth temperature and a part of G growth occurs isothermally to form G islands and another part by precipitation, resulting in a non-uniform h-BN/G film; and to region (3) where a continuous layered G structure is formed at the growth temperature and precipitated C atoms add additional G layers to the system, leading to a uniform h-BN/G film...
November 22, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29165170/evaluating-prevalence-and-risk-factors-of-building-related-symptoms-among-office-workers-seasonal-characteristics-of-symptoms-and-psychosocial-and-physical-environmental-factors
#9
Kenichi Azuma, Koichi Ikeda, Naoki Kagi, U Yanagi, Haruki Osawa
BACKGROUND: Psychosocial and environmental factors at the workplace play a significant role in building-related symptoms (BRSs). Environmental factors change during summer cooling and winter heating using air-conditioning systems. Thus, significant risk factors in each season need to be clarified. METHODS: A nationwide cross-sectional study was conducted during summer in Japan and seasonal differences between summer and winter were evaluated. Self-administered questionnaires were distributed to 489 offices...
April 12, 2017: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29164310/relevance-of-trpa1-and-trpm8-channels-as-vascular-sensors-of-cold-in-the-cutaneous-microvasculature
#10
REVIEW
Y Pan, D Thapa, L Baldissera, F Argunhan, A A Aubdool, S D Brain
Cold exposure is directly related to skin conditions, such as frostbite. This is due to the cold exposure inducing a vasoconstriction to reduce cutaneous blood flow and protect against heat loss. However, a long-term constriction will cause ischaemia and potentially irreversible damage. We have developed techniques to elucidate the mechanisms of the vascular cold response. We focused on two ligand-gated transient receptor potential (TRP) channels, namely, the established "cold sensors" TRP ankyrin 1 (TRPA1) and TRP melastin (TRPM8)...
November 21, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/29163207/a-new-personalized-cooling-protocol-to-activate-brown-adipose-tissue-in-young-adults
#11
Borja Martinez-Tellez, Guillermo Sanchez-Delgado, Yolanda Garcia-Rivero, Juan M A Alcantara, Wendy D Martinez-Avila, Maria V Muñoz-Hernandez, Josune Olza, Mariëtte R Boon, Patrick C N Rensen, Jose M Llamas-Elvira, Jonatan R Ruiz
Brown adipose tissue (BAT) activity is induced when humans are exposed to cold. Therefore, cold exposure prior to the (18)F-FDG-PET/CT scan is used as a tool to quantify BAT. Several cooling protocols, including fixed and personalized ones are currently in use. The aim of the present study was to determine the effect of a new personalized cooling protocol where the shivering threshold was measured on a separate day, on BAT volume and activity in young adults. A total of 47 adults (n = 28 women) aged 22 ± 2 years participated in the study...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29162820/the-formation-and-evolution-of-titan-s-winter-polar-vortex
#12
Nicholas A Teanby, Bruno Bézard, Sandrine Vinatier, Melody Sylvestre, Conor A Nixon, Patrick G J Irwin, Remco J de Kok, Simon B Calcutt, F Michael Flasar
Saturn's largest moon Titan has a substantial nitrogen-methane atmosphere, with strong seasonal effects, including formation of winter polar vortices. Following Titan's 2009 northern spring equinox, peak solar heating moved to the northern hemisphere, initiating south-polar subsidence and winter polar vortex formation. Throughout 2010-2011, strengthening subsidence produced a mesospheric hot-spot and caused extreme enrichment of photochemically produced trace gases. However, in 2012 unexpected and rapid mesospheric cooling was observed...
November 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/29161649/magic-angle-spinning-nmr-below-6%C3%A2-k-with-a-computational-fluid-dynamics-analysis-of-fluid-flow-and-temperature-gradients
#13
Erika L Sesti, Nicholas Alaniva, Peter W Rand, Eric J Choi, Brice J Albert, Edward P Saliba, Faith J Scott, Alexander B Barnes
We report magic angle spinning (MAS) up to 8.5 kHz with a sample temperature below 6 K using liquid helium as a variable temperature fluid. Cross polarization (13)C NMR spectra exhibit exquisite sensitivity with a single transient. Remarkably, (1)H saturation recovery experiments show a (1)H T1 of 21 s with MAS below 6 K in the presence of trityl radicals in a glassy matrix. Leveraging the thermal spin polarization available at 4.2 K versus 298 K should result in 71 times higher signal intensity...
November 11, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/29161321/association-mapping-unveils-favorable-alleles-for-grain-iron-and-zinc-concentrations-in-lentil-lens-culinaris-subsp-culinaris
#14
Akanksha Singh, Vinay Sharma, Harsh Kumar Dikshit, Muraleedhar Aski, Harish Kumar, Nepolean Thirunavukkarasu, Basavanagouda S Patil, Shiv Kumar, Ashutosh Sarker
Lentil is a major cool-season grain legume grown in South Asia, West Asia, and North Africa. Populations in developing countries of these regions have micronutrient deficiencies; therefore, breeding programs should focus more on improving the micronutrient content of food. In the present study, a set of 96 diverse germplasm lines were evaluated at three different locations in India to examine the variation in iron (Fe) and zinc (Zn) concentration and identify simple sequence repeat (SSR) markers that associate with the genetic variation...
2017: PloS One
https://www.readbyqxmd.com/read/29158706/comparative-study-of-free-and-liposome-entrapped-chloramphenicol-against-biofilms-of-potentially-pathogenic-bacteria-isolated-from-cooling-towers
#15
Marcus Vinícius Dias-Souza, Daniel Lucas Soares, Vera Lúcia Dos Santos
This study aimed to investigate for the first time the in vitro antibiofilm effectiveness of two chloramphenicol liposome formulations against biofilms of potentially pathogenic bacteria associated to corrosion isolated from the water of cooling towers from a Brazilian industry. Antibiofilm assays with liposomes were performed in 96-wells microtiter plates, and data was compared to free chloramphenicol treatment. Chloramphenicol-loaded liposomes were successfully produced using the dehydration-rehydration method, with vesicle diameters of 131 nm (100 nm membrane extrusion) and 182 nm (200 nm membrane extrusion) assessed by dynamic light scattering...
November 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/29158576/computational-study-on-single-molecular-spectroscopy-of-tyrosin-glycine-tryptophane-glycine-and-glycine-tryptophane
#16
Bing Yang, Shixue Liu, Zijing Lin
Quantum chemistry calculations play a fundamental role in revealing the molecular structures observed in gas-phase spectroscopic measurements. The supersonic jet cooling widely used in single molecular spectroscopy experiment is a non-equilibrium process and often causes confusion on the theoretical and experimental comparison. A computational approach is proposed here to account for the effect of the non-equilibrium cooling on the experimental spectra and applied to the cases of tyrosin-glycine (YG), tryptophane-glycine (WG) and glycine-tryptophane (GW)...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29158397/wetter-subtropics-in-a-warmer-world-contrasting-past-and-future-hydrological-cycles
#17
Natalie J Burls, Alexey V Fedorov
During the warm Miocene and Pliocene Epochs, vast subtropical regions had enough precipitation to support rich vegetation and fauna. Only with global cooling and the onset of glacial cycles some 3 Mya, toward the end of the Pliocene, did the broad patterns of arid and semiarid subtropical regions become fully developed. However, current projections of future global warming caused by CO2 rise generally suggest the intensification of dry conditions over these subtropical regions, rather than the return to a wetter state...
November 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29158031/robot-assisted-renal-transplantation-using-the-retroperitoneal-approach-rart-with-more-than-one-year-follow-up-description-of-the-technique-and-results
#18
F Bruyère, B Pradère, B Faivre d'Arcier, J-M Boutin, M Buchler, N Brichart
OBJECTIVES: To describe the technique and report our first experience of robotic-assisted renal transplantation (RART) with more than one year follow up. PATIENTS AND METHODS: In our center the first case of RART was realized in October 2013 with a cadaveric graft. We used the combined extra- and intraperitoneal robot assisted laparoscopic route with extraperitoneal positioning of the graft and intraperitoneal transplantation. The patient was placed in the supine position with arms along the body; the robot came from the right inferior part of the patient...
November 17, 2017: Progrès en Urologie
https://www.readbyqxmd.com/read/29155862/a-multi-paradigm-framework-to-assess-the-impacts-of-climate-change-on-end-use-energy-demand
#19
Roshanak Nateghi, Sayanti Mukherjee
Projecting the long-term trends in energy demand is an increasingly complex endeavor due to the uncertain emerging changes in factors such as climate and policy. The existing energy-economy paradigms used to characterize the long-term trends in the energy sector do not adequately account for climate variability and change. In this paper, we propose a multi-paradigm framework for estimating the climate sensitivity of end-use energy demand that can easily be integrated with the existing energy-economy models...
2017: PloS One
https://www.readbyqxmd.com/read/29155704/experimental-system-of-solar-adsorption-refrigeration-with-concentrated-collector
#20
Z X Yuan, Y X Li, C X Du
To improve the performance of solar adsorption refrigeration, an experimental system with a solar concentration collector was set up and investigated. The main components of the system were the adsorbent bed, the condenser, the evaporator, the cooling sub-system, and the solar collector. In the first step of the experiment, the vapor-saturated bed was heated by the solar radiation under closed conditions, which caused the bed temperature and pressure to increase. When the bed pressure became high enough, the bed was switched to connect to the condenser, thus water vapor flowed continually from the bed to the condenser to be liquefied...
October 18, 2017: Journal of Visualized Experiments: JoVE
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