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https://www.readbyqxmd.com/read/28424230/a-quiet-revolution-in-organ-transplant-ethics
#1
Arthur Caplan, Duncan Purves
A quiet revolution is occurring in the field of transplantation. Traditionally, transplants have involved solid organs such as the kidney, heart and liver which are transplanted to prevent recipients from dying. Now transplants are being done of the face, hand, uterus, penis and larynx that aim at improving a recipient's quality of life. The shift away from saving lives to seeking to make them better requires a shift in the ethical thinking that has long formed the foundation of organ transplantation. The addition of new forms of transplants requires doctors, patients, regulators and the public to rethink the risk and benefit ratio represented by trade-offs between saving life, extending life and risking the loss of life to achieve improvements in the quality of life...
April 19, 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/28423884/integrating-market-chain-assessments-with-zoonoses-risk-analysis-in-two-cross-border-pig-value-chains-in-lao-pdr
#2
Anna Okello, Tassilo Tamino Tiemann, Phouth Inthavong, Boualam Khamlome, Ammaly Phengvilaysouk, Soukanh Keonouchanh, Chattouphone Keokhamphet, Virasack Somoulay, Kate Blaszak, Stuart Blacksell, Walter Okello, John Allen
Lao PDR's recent accession to the World Trade Organization necessitates a greater understanding of the patterns and risk of livestock production in order to better align national policy with the Agreement on the Application of Sanitary and Phytosanitary Measures. This eco-health study describes the integration of market chain and zoonoses risk analyses at two strategic cross border points between Lao PDR, Thailand and Viet Nam. Information gained from smallholder farmer/trader interviews was integrated with serological surveys for pig-associated zoonoses - including hepatitis E virus, Taenia solium and Trichinella - to identify potential linkages between disease risk and pig production and slaughter in low input systems common across the country...
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28422992/the-evolution-of-cost-efficiency-in-neural-networks-during-recovery-from-traumatic-brain-injury
#3
Arnab Roy, Rachel A Bernier, Jianli Wang, Monica Benson, Jerry J French, David C Good, Frank G Hillary
A somewhat perplexing finding in the systems neuroscience has been the observation that physical injury to neural systems may result in enhanced functional connectivity (i.e., hyperconnectivity) relative to the typical network response. The consequences of local or global enhancement of functional connectivity remain uncertain and this is particularly true for the overall metabolic cost of the network. We examine the hyperconnectivity hypothesis in a sample of 14 individuals with TBI with data collected at approximately 3, 6, and 12 months following moderate and severe TBI...
2017: PloS One
https://www.readbyqxmd.com/read/28418737/public-health-emergency-response-in-taiwan
#4
Yi-Feng Su, Cheng-Hao Wu, Tsui-Feng Lee
In recent years, growth of international travel and trade, as well as climate change, has resulted in the frequent emergence and reemergence of infectious diseases such as Ebola, Zika, and MERS. In 2016, Taiwan used the Joint External Evaluation (JEE) tool to evaluate its public health emergency response capacities and understand important areas for improvement. This article presents Taiwan's disaster and public health emergency response organizational structure, real-time integrated information, response processes, and command center structure...
March 2017: Health Security
https://www.readbyqxmd.com/read/28418092/atmospheric-chlorinated-polyfluorinated-ether-sulfonate-and-ionic-perfluoroalkyl-acids-in-2006-to-2014-in-dalian-china
#5
Wei Liu, Hui Qin, Jingwen Li, Qian Zhang, Huanhuan Zhang, Zaoshi Wang, Xin He
Chlorinated polyfluorinated ether sulfonate (Cl-PFESA; trade name F-53B) is an alternative product for perfluorooctane sulfonate (PFOS) used in metal plating; little is known about its levels in the environment and its risks. To our knowledge, the present study constitutes the first report of Cl-PFESA in the atmosphere. In 2006 to 2014, C8 Cl-PFESA, along with ionic perfluoroalkyl acids (PFAAs), was detected in atmospheric particulate matter in Dalian, China. Concentrations of C8 Cl-PFESA increased from 140 pg/m(3) in 2007 to 722 pg/m(3) in 2014...
April 18, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28414718/achieving-global-perfect-homeostasis-through-transporter-regulation
#6
Yonatan Savir, Alexander Martynov, Michael Springer
Nutrient homeostasis-the maintenance of relatively constant internal nutrient concentrations in fluctuating external environments-is essential to the survival of most organisms. Transcriptional regulation of plasma membrane transporters by internal nutrient concentrations is typically assumed to be the main mechanism by which homeostasis is achieved. While this mechanism is homeostatic we show that it does not achieve global perfect homeostasis-a condition where internal nutrient concentrations are completely independent of external nutrient concentrations for all external nutrient concentrations...
April 17, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28412765/advanced-value-chain-collaboration-in-ghana-s-cocoa-sector-an-entry-point-for-integrated-landscape-approaches
#7
Howard Deans, Mirjam A F Ros-Tonen, Mercy Derkyi
Value chain analyses have focused mainly on collaboration between chain actors, often neglecting collaboration "beyond the chain" with non-chain actors to tackle food security, poverty and sustainability issues in the landscapes in which these value chains are embedded. Comparing conventional and advanced value chain collaborations involving small-scale cocoa farmers in Ghana, this paper analyzes the merits of a more integrated approach toward value chain collaboration. It particularly asks whether advanced value chain collaboration targeting cocoa-producing areas potentially offers an entry point for implementing a landscape approach...
April 15, 2017: Environmental Management
https://www.readbyqxmd.com/read/28407971/effect-of-phytosanitary-irradiation-on-the-postharvest-quality-of-seedless-kishu-mandarins-citrus-kinokuni-mukakukishu
#8
José de Jesús Ornelas-Paz, María Belén Meza, David Obenland, Karina Rodríguez Friscia, Akanksha Jain, Shantaè Thornton, Anuradha Prakash
Transnational trade of 'Seedless Kishu' mandarins (Citrus kinokuni mukakukishu) would require them to be subjected to a suitable phytosanitary treatment. Irradiation is used as an effective treatment for many fruit, but the effect on quality of kishu mandarins is unknown. 'Seedless Kishu' mandarins were treated with gamma irradiation (150, 400, and 1000Gy) and stored for three weeks at 6°C and then for one week at 20°C. Irradiation at 400 and 1000Gy promoted browning of the calyx end and fungal infection...
September 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28407279/orangutan-trade-confiscations-and-lack-of-prosecutions-in-indonesia
#9
Vincent Nijman
Prosecuting and sentencing law breakers punishes the offender and acts as a deterrent for future law breakers. With thousands of Sumatran and Bornean orangutans (Pongo abelii and P. pygmaeus) having entered private and government rescue centers and facilities, I evaluate the role of successful prosecution in orangutan conservation in Indonesia. Orangutans have been protected in Indonesian since 1931 and they are not allowed to be traded or to be kept as pets. In the period 1993-2016 at least 440 orangutans were formally confiscated, and many more were "donated" to law enforcement agencies...
April 13, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28405299/multifunctionality-is-affected-by-interactions-between-green-roof-plant-species-substrate-depth-and-substrate-type
#10
Yann Dusza, Sébastien Barot, Yvan Kraepiel, Jean-Christophe Lata, Luc Abbadie, Xavier Raynaud
Green roofs provide ecosystem services through evapotranspiration and nutrient cycling that depend, among others, on plant species, substrate type, and substrate depth. However, no study has assessed thoroughly how interactions between these factors alter ecosystem functions and multifunctionality of green roofs. We simulated some green roof conditions in a pot experiment. We planted 20 plant species from 10 genera and five families (Asteraceae, Caryophyllaceae, Crassulaceae, Fabaceae, and Poaceae) on two substrate types (natural vs...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28403902/phylodynamics-of-foot-and-mouth-disease-virus-o-panasia-in-vietnam-2010-2014
#11
Barbara Brito, Steven J Pauszek, Michael Eschbaumer, Carolina Stenfeldt, Helena C de Carvalho Ferreira, Le T Vu, Nguyen T Phuong, Bui H Hoang, Nguyen D Tho, Pham V Dong, Phan Q Minh, Ngo T Long, Donald P King, Nick J Knowles, Do H Dung, Luis L Rodriguez, Jonathan Arzt
Foot-and-mouth disease virus (FMDV) is endemic in Vietnam, a country that plays an important role in livestock trade within Southeast Asia. The large populations of FMDV-susceptible species in Vietnam are important components of food production and of the national livelihood. In this study, we investigated the phylogeny of FMDV O/PanAsia in Vietnam, reconstructing the virus' ancestral host species (pig, cattle or buffalo), clinical stage (subclinical carrier or clinically affected) and geographical location...
April 13, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28402726/detection-and-reporting-of-ranavirus-in-amphibians-evaluation-of-the-roles-of-the-world-organisation-for-animal-health-and-the-published-literature
#12
Yvonne Black, Anna Meredith, Stephen J Price
Pathogens of wildlife can have direct impacts on human and livestock health as well as on biodiversity, as causative factors in population declines and extinctions. The World Organization for Animal Health (OIE) seeks to facilitate rapid sharing of information about animal diseases to enable up-to-date risk assessments of translocations of animals and animal products. The OIE also produces manuals of recommended methods to standardize diagnostic testing. Ranaviruses are important amphibian pathogens that may have spread through international trade, and infections became notifiable to OIE in 2009...
April 12, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28396676/a-conserved-potential-development-framework-applies-to-shoots-of-legume-species-with-contrasting-morphogenetic-strategies
#13
Lucas Faverjon, Abraham J Escobar-Gutiérrez, Isabelle Litrico, Gaëtan Louarn
A great variety of legume species are used for forage production and grown in multi-species grasslands. Despite their close phylogenetic relationship, they display a broad range of morphologies that markedly affect their competitive abilities and persistence in mixtures. Little is yet known about the component traits that control the deployment of plant architecture in most of these species. During the present study, we compared the patterns of shoot organogenesis and shoot organ growth in contrasting forage species belonging to the four morphogenetic groups previously identified in herbaceous legumes (i...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28395344/occurrence-of-fumigants-and-hazardous-off-gassing-chemicals-in-shipping-containers-arriving-in-sweden
#14
Urban Svedberg, Gunnar Johanson
Containerized cargo shipment makes up the backbone of international trade. The principal aim of this cross-sectional study was to establish a qualitative and quantitative description of gaseous fumigants and volatile off-gassing substances facing workers tasked with entering shipping containers. A total of 372 packed and 119 empty shipping containers were sampled in six ports and two distribution centers in Sweden. Fourier-transform infrared spectrometry (FTIR) and photoionization detection (PID) were the analytical methods applied to the bulk of samples...
March 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28394713/elbow-mri-findings-do-not-correlate-with-future-placement-on-the-disabled-list-in-asymptomatic-professional-baseball-pitchers
#15
Nicholas M Gutierrez, Christopher Granville, Lee Kaplan, Michael Baraga, Jean Jose
BACKGROUND: Injury rates among professional baseball players may reach as high as 5.8 per 1000 encounters, with pitchers being most vulnerable on account of the excessive biomechanical load on the upper extremity during the throwing motion. Anatomically, the shoulder is the most common site of pitching-related injury, accounting for 30.7% of injuries, closely followed by the elbow at 26.3%. Characteristic valgus loading imparts a predictable constellation of stresses on the joint, including medial tension, lateral compression, and posterior medial shearing...
April 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28390314/trade-off-between-soil-organic-carbon-sequestration-and-nitrous-oxide-emissions-from-winter-wheat-summer-maize-rotations-implications-of-a-25-year-fertilization-experiment-in-northwestern-china
#16
Jiangxin Gu, Mengxuan Yuan, Jixuan Liu, Yaoxu Hao, Yingtian Zhou, Dong Qu, Xueyun Yang
The primary aims of this study were to (i) quantify the variations in nitrous oxide (N2O) emissions and soil organic carbon (SOC) sequestration rates under winter wheat-summer maize cropping systems in Guanzhong Plain and (ii) evaluate the impact of organic amendments on greenhouse gas mitigation over a long-term period. We measured N2O fluxes during the maize season in 2015 under four fertilizer regimes in a long-term fertilization experiment. Soil was treated with only synthetic fertilizers in the maize season and with synthetic fertilizers, synthetic fertilizers plus crop residues and synthetic fertilizers plus low and high levels of dairy manure in the winter wheat season from 1990...
April 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28390002/a-tool-for-validating-mri-guided-strategies-a-digital-breathing-ct-mri-phantom-of-the-abdominal-site
#17
Chiara Paganelli, Paul Summers, Chiara Gianoli, Massimo Bellomi, Guido Baroni, Marco Riboldi
Dynamic magnetic resonance imaging (MRI) is emerging as the elected image modality for organ motion quantification and management in image-guided radiotherapy. However, the lack of validation tools is an open issue for image guidance in the abdominal and thoracic organs affected by organ motion due to respiration. We therefore present an abdominal four-dimensional (4D) CT/MRI digital phantom, including the estimation of MR tissue parameters, simulation of dedicated abdominal MR sequences, modeling of radiofrequency coil response and noise, followed by k-space sampling and image reconstruction...
April 8, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28387498/understanding-volumetric-and-gravimetric-hydrogen-adsorption-trade-off-in-metal-organic-frameworks
#18
Diego A Gómez-Gualdrón, Timothy C Wang, Paula García-Holley, Ruth M Sawelewa, Edwin Argueta, Randall Q Snurr, Joseph T Hupp, Taner Yildirim, Omar K Farha
Metal-organic frameworks (MOFs) are porous crystalline materials that are promising for adsorption-based, on-board storage of hydrogen in fuel-cell vehicles. Volumetric and gravimetric hydrogen capacities are the key factors that determine the size and weight of the MOF-filled tank required to store a certain amount of hydrogen for reasonable driving range. Therefore, they must be optimized so the tank is neither too large nor too heavy. Because the goals of maximizing MOF volumetric and gravimetric hydrogen adsorption loadings individually are incompatible, an in-depth understanding of the trade-off between MOF volumetric and gravimetric loadings is necessary to achieve the best compromise between these properties...
April 7, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28384119/status-of-water-pollution-in-relation-to-industrialization-in-rajasthan
#19
Ritu Singh Rajput, Sonali Pandey, Seema Bhadauria
India is a large and densely populated country; its economy is largely agricultural. Making the best use of the country's manpower has always posed a challenge. Industrialization could become a dominant component of the economy and displace agriculture. Traditional livelihoods of occupational groups are threatened by the practice of disposing untreated industrial waste into rivers and bodies of water. These uncontrolled disposals impact local natural resources with negative long-term effects. Industrialization is the development of intellectual and financial trade that changes a predominantly rustic culture into a modern one...
April 6, 2017: Reviews on Environmental Health
https://www.readbyqxmd.com/read/28382008/a-goal-directed-bayesian-framework-for-categorization
#20
Francesco Rigoli, Giovanni Pezzulo, Raymond Dolan, Karl Friston
Categorization is a fundamental ability for efficient behavioral control. It allows organisms to remember the correct responses to categorical cues and not for every stimulus encountered (hence eluding computational cost or complexity), and to generalize appropriate responses to novel stimuli dependant on category assignment. Assuming the brain performs Bayesian inference, based on a generative model of the external world and future goals, we propose a computational model of categorization in which important properties emerge...
2017: Frontiers in Psychology
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