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https://www.readbyqxmd.com/read/29161597/sustainability-of-mega-water-diversion-projects-experience-and-lessons-from-china
#1
Min Yu, Chaoran Wang, Yi Liu, Gustaf Olsson, Chunyan Wang
Water availability and water demand are not evenly distributed in time and space. Many mega water diversion projects have been launched to alleviate water shortages in China. This paper analyzes the temporal and spatial features of 59 mega water diversion projects in China using statistical analysis. The relationship between nine major basins is measured using a network analysis method, and the associated economic, environmental and social impacts are explored using an impact analysis method. The study finds the development of water diversion has experienced four stages in China, from a starting period through to a period of high-speed development...
November 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29161590/skin-and-its-regenerative-powers-an-alliance-between-stem-cells-and-their-niche
#2
REVIEW
Kevin Andrew Uy Gonzales, Elaine Fuchs
Tissues have a natural capacity to replace dying cells and to heal wounds. This ability resides in resident stem cells, which self-renew, preserve, and repair their tissue during homeostasis and following injury. The skin epidermis and its appendages are subjected to daily assaults from the external environment. A high demand is placed on renewal and regeneration of the skin's barrier in order to protect the body from infection and dehydration and to heal wounds. This review focuses on the epithelial stem cells of skin, where they come from, where they reside, and how they function in normal homeostasis and wound repair...
November 20, 2017: Developmental Cell
https://www.readbyqxmd.com/read/29161576/unraveling-physiological-biochemical-and-molecular-mechanisms-involved-in-olive-olea-europaea-l-cv-ch%C3%A3-toui-tolerance-to-drought-and-salt-stresses
#3
Mariem Ben Abdallah, Dalila Trupiano, Antonella Polzella, Elena De Zio, Mauro Sassi, Andrea Scaloni, Mokhtar Zarrouk, Nabil Ben Youssef, Gabriella Stefania Scippa
Olive (Olea europaea L.) is an economically important crop for the Mediterranean basin, where prolonged drought and soil salinization may occur. This plant has developed a series of mechanisms to tolerate and grow under these adverse conditions. By using an integrated approach, we described in Chétoui olive cultivar the changes in plant growth, oxidative damage and osmolyte accumulation in leaves, in combination with corresponding changes in physiological parameters and proteome. Our results showed, under both stress conditions, a greater growth reduction of the aboveground plant organs than of the underground counterparts...
November 10, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29161569/denitrification-of-landfill-leachate-under-different-hydraulic-retention-time-in-a-two-stage-anoxic-oxic-combined-membrane-bioreactor-process-performances-and-bacterial-community
#4
Jianbo Liu, Panyue Zhang, Haibo Li, Yuan Tian, Siyu Wang, Yonghui Song, Guangming Zeng, Chen Sun, Zhiyong Tian
Two-stage anoxic/oxic combined membrane bioreactor (A/O-A/O-MBR) process was used to treat leachate generated from Shenyang Laohuchong landfill, and the effect of hydraulic retention time (HRT) was studied. A long HRT of 9 d and a short HRT of 5 d showed negative effect on the stability of process, resulting in a higher organic concentration of effluent than that with a HRT of 7 d, while the highest removal of chemical oxygen demand (COD), ammonia (NH4(+)-N) and total nitrogen (TN) were achieved with a HRT of 7 d, which was 82...
November 11, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29161396/demands-and-requests-for-inappropriate-or-inadvisable-treatments-at-the-end-of-life-what-do-you-do-at-2-o-clock-in-the-morning-when-%C3%A2
#5
L McCrossan, R Siegmeth
In an era when healthcare has become increasingly complex and patient expectations are higher than ever before, we can find the decision-making process for patients, potentially at the end of their lives, increasingly difficult. In the shift from paternalism to patient choice, we can struggle to know what to do when faced with a patient, their family, or both requesting or demanding inadvisable, inappropriate, or futile treatments. It can feel as if we are being asked to subject patients to intrusions and interventions that 'just feel wrong'...
December 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29161031/computational-exploration-of-concerted-and-zwitterionic-mechanisms-of-diels-alder-reactions-between-1-2-3-triazines-and-enamines-and-acceleration-by-hydrogen-bonding-solvents
#6
Yun-Fang Yang, Peiyuan Yu, Kendall N Houk
The mechanisms of Diels-Alder reactions between 1,2,3-triazines and enamines have been explored with density functional theory computations. The focus of this work is on the origins of the different reactivities and mechanisms induced by substituents and by hexafluoroisopropanol (HFIP) solvent. These inverse electron-demand Diels-Alder reactions of triazines have wide applications in bioorthogonal chemistry and natural product synthesis. Both concerted and stepwise cycloadditions are predicted, depending on the nature of substituents and solvents...
November 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29160760/identification-of-organic-compounds-in-landfill-leachate-treated-by-advanced-oxidation-processes
#7
Ana Paula Jambers Scandelai, Eliane Sloboda Rigobello, Beatriz Lopes Corso de Oliveira, Célia Regina Granhen Tavares
Landfill leachates are considered to be complex effluents of a variable composition containing many compounds which are difficult to biodegrade and is highly toxic both to the environment and to human health.For this purpose and considering the shortage of studies concerning the treatment of landfill leachates using ozone, as well as its combination with catalysts, the aim of this paper was to identify the organic compounds in the landfill leachate of Maringá, Paraná, Brazil treated with advanced oxidation processes (AOPs) of ozonation (O3), heterogeneous catalytic ozonation with TiO2 (O3/TiO2), and heterogeneous catalytic ozonation with ZnO (O3/ZnO)...
November 21, 2017: Environmental Technology
https://www.readbyqxmd.com/read/29160638/tissue-repair-in-neonatal-and-pediatric-surgery-analysis-on-infections-in-surgically-implanted-natural-biomaterials
#8
Amulya K Saxena, Piotr Soltysiak
INTRODUCTION: Over the past 4 decades commercially available natural and synthetic biomaterials have been employed for various reconstructive procedures in the pediatric population. The aim of this study was to identify the types of commercially available natural biomaterials and their areas of application in the pediatric age group. Furthermore, to perform an analysis to identify areas of application and types of biomaterials those have increased susceptibility to infections in the pediatric population...
November 21, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/29160480/possibilities-of-care-for-serodiscordant-couples-for-hiv-who-got-pregnant
#9
Tassiane Ferreira Langendorf, Ivis Emília de Oliveira Souza, Stela Maris de Mello Padoin, Cristiane Cardoso de Paula, Ana Beatriz Azevedo Queiroz, Maria Aparecida Vasconcelos Moura, Maria Carmen Simões Cardoso de Melo, Lúcia de Fatima da Silva
OBJECTIVE: Understanding the meaning of pregnancy for heterosexual couples facing serodiscordant situation for HIV, aiming at construction of care possibilities based on subjectivity. METHOD: Phenomenological research, theoretical-philosophical-methodological framework by Martin Heidegger. Research was conducted in a University Hospital in the countryside of Southern Brazil, from September 2013 to May 2014 through a phenomenological interview, with participation of eleven couples...
November 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/29160451/main-characteristics-of-patients-of-primary-health-care-services-in-brazil
#10
Ione Aquemi Guibu, José Cássio de Moraes, Augusto Afonso Guerra, Ediná Alves Costa, Francisco de Assis Acurcio, Karen Sarmento Costa, Margô Gomes de Oliveira Karnikowski, Orlando Mario Soeiro, Silvana Nair Leite, Juliana Álvares
OBJECTIVE: To characterize patients of primary health care services according to demographic and socioeconomic aspects, habits and lifestyle, health condition, and demand for health services and medicines. METHODS: This study is part of the Pesquisa Nacional sobre Acesso, Utilização e Promoção do Uso Racional de Medicamentos - Serviços (PNAUM - National Survey on Access, Use and Promotion of Rational Use of Medicines - Services), a cross-sectional study carried out between 2014 and 2015...
November 13, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/29160450/characterization-of-the-selection-of-medicines-for-the-brazilian-primary-health-care
#11
Margô Gomes de Oliveira Karnikowski, Dayani Galato, Micheline Marie Milward de Azevedo Meiners, Emília Vitória da Silva, Letícia Farias Gerlack, Ângelo José Gonçalves Bós, Silvana Nair Leite, Juliana Álvares, Ione Aquemi Guibu, Orlando Mario Soeiro, Karen Sarmento Costa, Ediná Alves Costa, Augusto Afonso Guerra, Francisco de Assis Acurcio
OBJECTIVE: To characterize the process of selection of medicines for primary health care in the Brazilian regions. METHODS: This article is part of the Pesquisa Nacional sobre Acesso, Utilização e Promoção do Uso Racional de Medicamentos - Serviços, 2015 (PNAUM - National Survey on Access, Use and Promotion of Rational Use of Medicines - Services, 2015), a cross-sectional study that consisted of an information gathering in a sample of cities in the five regions of Brazil...
November 13, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/29160447/financing-of-pharmaceutical-services-in-the-municipal-management-of-the-brazilian-unified-health-system
#12
Daniel Resende Faleiros, Francisco de Assis Acurcio, Juliana Álvares, Renata Cristina Rezende Macedo do Nascimento, Ediná Alves Costa, Ione Aquemi Guibu, Orlando Mario Soeiro, Silvana Nair Leite, Margô Gomes de Oliveira Karnikowski, Karen Sarmento Costa, Augusto Afonso Guerra
OBJECTIVE: To discuss factors related to the financing of the Basic Component of Pharmaceutical Services within the municipal management of the Brazilian Unified Health System. METHODS: The Pesquisa Nacional sobre Acesso, Utilização e Promoção do Uso Racional de Medicamentos no Brasil - Serviços (PNAUM - National Survey on Access, Use and Promotion of Rational Use of Medicines - Services) is a cross-sectional, exploratory, and evaluative study that performed an information survey in a representative sample, stratified by Brazilian regions It considered different study populations in the sampling plan, which represent primary health care services in the cities...
November 13, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/29160333/effect-of-education-on-listening-comprehension-of-sentences-on-healthy-elderly-analysis-of-number-of-correct-responses-and-task-execution-time
#13
Marcela Lima Silagi, Camila Maia Rabelo, Eliane Schochat, Letícia Lessa Mansur
PURPOSE: To analyze the effect of education on sentence listening comprehension on cognitively healthy elderly. METHODS: A total of 111 healthy elderly, aged 60-80 years of both genders were divided into two groups according to educational level: low education (0-8 years of formal education) and high education (≥9 years of formal education). The participants were assessed using the Revised Token Test, an instrument that supports the evaluation of auditory comprehension of orders with different working memory and syntactic complexity demands...
November 13, 2017: CoDAS
https://www.readbyqxmd.com/read/29160224/colloidal-paradigm-in-supercapattery-electrode-systems
#14
Kunfeng Chen, Dongfeng Xue
Among decades of development, electrochemical energy storage system is now sorely in need of new design paradigm at nanosize and ion-level to satisfy the higher energy and higher power demand. In this review paper, we introduce a new colloidal electrode paradigm for supercapattery which integrates multiple-scale matter existing forms, i.e., ion clusters, colloidal ions, nanosized materials, into one colloid system, coupled with multiple interactions, i.e., electrostatic, van der Waals force, chemical bonding, leading to the formation of many redox reactive centers...
November 21, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29160058/unraveled-face-dependent-effects-of-multi-layered-graphene-embedded-in-transparent-organic-light-emitting-diodes
#15
Jong Tae Lim, Jaesu Kim, Hyunkoo Lee, Jaehyun Moon, Byoung-Hwa Kwon, Seongdeok Ahn, Nam Sung Cho, Byung-Wook Ahn, Jeong-Ik Lee, Kyuwook Ihm, Seong Chu Lim
With increasing demand for transparent conducting electrode, graphene has attracted considerable attention, owing to its high electrical conductivity, high transmittance, low reflectance, flexibility and tunable work function. Two faces of single layer graphene are indistinguishable in its nature and this idea has not been doubted even in multilayered graphene (MLG) because it is difficult to separately characterize the front (first-born) and rear face (last-born) of MLG by using conventional analysis tools, such as Raman, ultraviolet spectroscopy, scanning probe microscopy, and sheet resistance...
November 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29159926/deep-ocean-prokaryotic-communities-are-remarkably-malleable-when-facing-long-term-starvation
#16
Marta Sebastián, Jean-Christophe Auguet, Claudia Ximena Restrepo Ortiz, Maria Montserrat Sala, Celia Marrasé, Josep M Gasol
The bathypelagic ocean is one of the largest ecosystems on Earth, and sustains half of the ocean's microbial activity. This microbial activity strongly relies on surface-derived particles, but there is growing evidence that the carbon released through solubilisation of these particles may not be sufficient to meet the energy demands of deep ocean prokaryotes. To explore how bathypelagic prokaryotes respond to the absence of external inputs of carbon, we followed the long-term (1 yr) dynamics of an enclosed community...
November 21, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/29159842/struggle-and-failure-on-clinical-placement-a-critical-narrative-review
#17
REVIEW
Rachel Davenport, Sally Hewat, Alison Ferguson, Sue McAllister, Michelle Lincoln
BACKGROUND: Clinical placements are crucial to the development of skills and competencies in speech-language pathology (SLP) education and, more generally, a requirement of all health professional training programmes. Literature from medical education provides a context for understanding how the environment can be vital to all students' learning. Given the increasing costs of education and demands on health services, students who struggle or fail on clinical placement place an additional burden on educators...
November 21, 2017: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/29159798/tasks-determine-what-is-learned-in-visual-statistical-learning
#18
Timothy J Vickery, Su Hyoun Park, Jayesh Gupta, Marian E Berryhill
Visual statistical learning (VSL), the unsupervised learning of statistical contingencies across time and space, may play a key role in efficient and predictive encoding of the perceptual world. How VSL capabilities vary as a function of ongoing task demands is still poorly understood. VSL is modulated by selective attention and faces interference from some secondary tasks, but there is little evidence that the types of contingencies learned in VSL are sensitive to task demands. We found a powerful effect of task on what is learned in VSL...
November 20, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/29159678/on-the-predictability-of-event-boundaries-in-discourse-an-erp-investigation
#19
Francesca Delogu, Heiner Drenhaus, Matthew W Crocker
When reading a text describing an everyday activity, comprehenders build a model of the situation described that includes prior knowledge of the entities, locations, and sequences of actions that typically occur within the event. Previous work has demonstrated that such knowledge guides the processing of incoming information by making event boundaries more or less expected. In the present ERP study, we investigated whether comprehenders' expectations about event boundaries are influenced by how elaborately common events are described in the context...
November 20, 2017: Memory & Cognition
https://www.readbyqxmd.com/read/29159598/etox-allies-an-automated-pipeline-for-linear-interaction-energy-based-simulations
#20
Luigi Capoferri, Marc van Dijk, Ariën S Rustenburg, Tsjerk A Wassenaar, Derk P Kooi, Eko A Rifai, Nico P E Vermeulen, Daan P Geerke
BACKGROUND: Computational methods to predict binding affinities of small ligands toward relevant biological (off-)targets are helpful in prioritizing the screening and synthesis of new drug candidates, thereby speeding up the drug discovery process. However, use of ligand-based approaches can lead to erroneous predictions when structural and dynamic features of the target substantially affect ligand binding. Free energy methods for affinity computation can include steric and electrostatic protein-ligand interactions, solvent effects, and thermal fluctuations, but often they are computationally demanding and require a high level of supervision...
November 21, 2017: Journal of Cheminformatics
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