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https://www.readbyqxmd.com/read/28813122/morphological-alterations-in-the-jejunal-mucosa-of-aged-rats-and-the-possible-protective-role-of-green-tea
#1
Zeinab Abel-Rehim Hassan, Agata Zauszkiewicz-Pawlak, Shaimaa A Abdelrahman, Sami Algaidi, Maha Desouky, Sally M Shalaby
INTRODUCTION: Gastrointestinal disorders become more prevalent with ageing. This study is aimed to describe morphological changes that occur in the jejunal mucosa of male albino rats as a result of ageing and the protective effect of green tea supplements. MATERIAL AND METHODS: The experiment was performed on sixty rats: thirty young-adult (6-month old, body mass 200-220 g) and thirty old (24-month-old, body mass 220-260 g) animals. Each group was further divided into two subgroups (n = 15 each): control rats and green tea-treated rats that received 1...
August 16, 2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28813104/poly-methylene-blue-modified-electrode-for-indirect-electrochemical-sensing-of-oh-radicals-and-radical-scavengers
#2
Walter A Braun, Bruna C Horn, Lucélia Hoehne, Simone Stülp, Marcelo B DA Rosa, Maurício Hilgemann
A new modified electrode for indirect sensing of OH· and radical scavengers was described. The electrochemical polymerization of methylene blue in aqueous solutions and the properties of the resulting films on a glassy carbon electrode were carried out using cyclic voltammetry. A surface coverage of 1.11 × 109mol cm2 was obtained, revealing a complete surface coverage of the polymeric film on the electrode surface. OH· was able to destroy the poly(methylene blue) film by exposure to a Fenton solution. The loss of the electrochemical signal of the residual polymeric film attached to the electrode surface was related to the extent of its dissolution...
August 14, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28813099/leaf-area-estimation-of-cassava-from-linear-dimensions
#3
Samara Zanetti, Laís F M Pereira, Maria Márcia P Sartori, Marcelo A Silva
The objective of this study was to determine predictor models of leaf area of ​​cassava from linear leaf measurements. The experiment was carried out in greenhouse in the municipality of Botucatu, São Paulo state, Brazil. The stem cuttings with 5-7 nodes of the cultivar IAC 576-70 were planted in boxes filled with about 320 liters of soil, keeping soil moisture at field capacity, monitored by puncturing tensiometers. At 80 days after planting, 140 leaves were randomly collected from the top, middle third and base of cassava plants...
August 14, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28813068/cultural-adaptation-of-the-short-self-regulation-questionnaire-suggestions-for-the-speech-area
#4
Anna Alice Almeida, Mara Behlau
Purpose: To present the translated and linguistic and culturally adapted version of the Short self-regulation Questionnaire (SSRQ) for the Brazilian Portuguese and to check its applicability to patients with dysphonia. Methods: The SSRQ is a tool used to evaluate the ability to self-regulate behavior; it has 31 items and generates three scores: total index of individual self-regulation capacity and partial scores for goal setting and impulse control. Each item should be scored by means of a Likert-type 5-point scale; the total score ranges from 29 to 145 points...
August 14, 2017: CoDAS
https://www.readbyqxmd.com/read/28813002/application-of-surfactant-micelle-entrapped-eugenol-for-prevention-of-growth-of-the-shiga-toxin-producing-escherichia-coli-in-ground-beef
#5
Tamra N Tolen, Songsirin Ruengvisesh, Thomas M Taylor
Beef safety may be compromised by O157 and non-O157 Shiga toxin-producing Escherichia coli (STEC) contamination. The capacity of surfactant micelles loaded with the plant-derived antimicrobial eugenol to reduce STEC on beef trimmings that were later ground and refrigerated for five days at 5 ± 1 °C was tested to determine their utility for beef safety protection. STEC-inoculated trimmings were treated with free eugenol, micelle-encapsulated eugenol, 2% lactic acid (55 °C), sterile distilled water (25 °C), or left untreated (control)...
August 16, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28812976/learning-and-recognition-of-tactile-temporal-sequences-by-mice-and-humans
#6
Michael R Bale, Malamati Bitzidou, Anna Pitas, Leonie S Brebner, Lina Khazim, Stavros T Anagnou, Caitlin D Stevenson, Miguel Maravall
The world around us is replete with stimuli that unfold over time. When we hear an auditory stream like music or speech or scan a texture with our fingertip, physical features in the stimulus are concatenated in a particular order. This temporal patterning is critical to interpreting the stimulus. To explore the capacity of mice and humans to learn tactile sequences, we developed a task in which subjects had to recognise a continuous modulated noise sequence delivered to whiskers or fingertips, defined by its temporal patterning over hundreds of milliseconds...
August 16, 2017: ELife
https://www.readbyqxmd.com/read/28812894/enhanced-production-of-%C3%AE%C2%BA-carrageenase-and-%C3%AE%C2%BA-carrageenan-oligosaccharides-through-immobilization-of-thalassospira-sp-fjfst-332-with-magnetic-fe3o4-chitosan-microspheres
#7
Juanjuan Guo, Zhichang Zheng, Chi Chen, Xu Lu, Yi Zhang, Baodong Zheng
In this study, immobilized bacteria (IMB) microsphere was prepared by embedding κ-carrageenase-producing Thalassospira sp.Fjfst-332 (TF332) onto a magnetic Fe3O4-chitosan carrier. The performance of Fe3O4-chitosan carrier was optimized by comparing their bacteria immobilization capacity at different Fe3O4:chitosan ratios and temperatures, while the functions of IMB microspheres were characterized by examining their κ-carrageenase production at different temperatures, pH, and reuse cycles. At the 1:1 (w:w) Fe3O4:chitosan ratio, the Fe3O4-chitosan carriers possessed sufficient anchoring capacity for bacterial immobilization without significant compromise of their magnetism for magnetic separation of IMB from culture media...
August 16, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28812873/ultrathin-manganese-based-metal-organic-framework-nanosheets-low-cost-and-energy-dense-lithium-storage-anodes-with-the-coexistence-of-metal-and-ligand-redox-activities
#8
Chao Li, Xiaoshi Hu, Wei Tong, Wensheng Yan, Xiaobing Lou, Ming Shen, Bingwen Hu
We herein demonstrate the fabrication of Mn- and Ni-based ultrathin metal-organic framework nanosheets with the same coordination mode (defined as 'Mn-UMOFNs' and 'Ni-UMOFNs', respectively) through an expedient and versatile ultrasonic approach, and scrutinize their electrochemical properties as anode materials for rechargeable lithium battery for the first time. The obtained Mn-UMOFNs with structure advantages over Ni-UMOFNs (thinner nanosheets, smaller metal-ion radius, higher specific surface area) exhibit high reversible capacity (1187 mAh g-1 at 100 mA g-1 for 100 cycles), excellent rate capability (701 mAh g-1 even at 2 A g-1), rapid Li+ diffusion coefficient (2...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28812866/directly-coating-multifunctional-interlayer-on-the-cathode-via-electrospinning-for-advanced-lithium-sulfur-batteries
#9
Yueying Peng, Yiyong Zhang, Yunhui Wang, Xiu Shen, Feng Wang, He Li, Bing-Joe Hwang, Jinbao Zhao
Lithium sulfur battery is considered as a prospective candidate for high-energy-storage system as its high theoretical specific capacity and energy. However, the dissolution and shutter of polysulfides lead to low active material utilization and fast capacity fading. Electrospinning technology is employed to directly coat an interlayer composed of polyacrylonitrile (PAN) and nitrogen-doped carbon black (NC) fibers on the cathode. Benefited from electrospinning technology, the PAN-NC fibers possess good electrolyte infiltration for fast lithium-ion transport and great flexibility for adhering on the cathode...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28812857/building-capacity-to-care-for-refugees
#10
Jeffrey Walden, Olga Valdman, Ranit Mishori, Martha Carlough
No abstract text is available yet for this article.
July 2017: Family Practice Management
https://www.readbyqxmd.com/read/28812842/governance-and-capacity-to-manage-resilience-of-health-systems-towards-a-new-conceptual-framework
#11
Karl Blanchet, Sara L Nam, Ben Ramalingam, Francisco Pozo-Martin
The term resilience has dominated the discourse among health systems researchers since 2014 and the onset of the Ebola outbreak in West Africa. There is wide consensus that the global community has to help build more resilient health systems. But do we really know what resilience means, and do we all have the same vision of resilience? The present paper presents a new conceptual framework on governance of resilience based on systems thinking and complexity theories. In this paper, we see resilience of a health system as its capacity to absorb, adapt and transform when exposed to a shock such as a pandemic, natural disaster or armed conflict and still retain the same control over its structure and functions...
April 4, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812832/exploring-the-functioning-of-decision-space-a-review-of-the-available-health-systems-literature
#12
REVIEW
Tamlyn Eslie Roman, Susan Cleary, Diane McIntyre
BACKGROUND: The concept of decision space holds appeal as an approach to disaggregating the elements that may influence decision-making in decentralized systems. This narrative review aims to explore the functioning of decision space and the factors that influence decision space. METHODS: A narrative review of the literature was conducted with searches of online databases and academic journals including PubMed Central, Emerald, Wiley, Science Direct, JSTOR, and Sage...
February 27, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812831/multisectoral-actions-for-health-challenges-and-opportunities-in-complex-policy-environments
#13
EDITORIAL
Viroj Tangcharoensathien, Orapan Srisookwatana, Poldej Pinprateep, Tipicha Posayanonda, Walaiporn Patcharanarumol
Multisectoral actions for health, defined as actions undertaken by non-health sectors to protect the health of the population, are essential in the context of inter-linkages between three dimensions of sustainable development: economic, social, and environmental. These multisectoral actions can address the social and economic factors that influence the health of a population at the local, national, and global levels. This editorial identifies the challenges, opportunities and capacity development for effective multisectoral actions for health in a complex policy environment...
May 16, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812823/an-assessment-of-national-maternal-and-child-health-policy-makers-knowledge-and-capacity-for-evidence-informed-policy-making-in-nigeria
#14
Chigozie Jesse Uneke, Issiaka Sombie, Namoudou Keita, Virgil Lokossou, Ermel Johnson, Pierre Ongolo-Zogo
BACKGROUND: There is increasing interest globally in the use of more rigorous processes to ensure that maternal, newborn, and child health (MNCH) care recommendations are informed by the best available research evidence use. The purpose of this study was to engage Nigerian MNCH policy-makers and other stakeholders to consider issues around research to policy and practice interface and to assess their existing knowledge and capacity on the use of research evidence for policy-making and practice...
October 8, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812819/advancing-public-health-on-the-changing-global-trade-and-investment-agenda-comment-on-the-trans-pacific-partnership-is-it-everything-we-feared-for-health
#15
Anne Marie Thow, Deborah Gleeson
Concerns regarding the Trans-Pacific Partnership (TPP) have raised awareness about the negative public health impacts of trade and investment agreements. In the past decade, we have learned much about the implications of trade agreements for public health: reduced equity in access to health services; increased flows of unhealthy commodities; limits on access to medicines; and constrained policy space for health. Getting health on the trade agenda continues to prove challenging, despite some progress in moving towards policy coherence...
September 28, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812815/stakeholders-perspectives-on-the-success-drivers-in-ghana-s-national-health-insurance-scheme-identifying-policy-translation-issues
#16
Adam Fusheini, Gordon Marnoch, Ann Marie Gray
BACKGROUND: Ghana's National Health Insurance Scheme (NHIS), established by an Act of Parliament (Act 650), in 2003 and since replaced by Act 852 of 2012 remains, in African terms, unprecedented in terms of growth and coverage. As a result, the scheme has received praise for its associated legal reforms, clinical audit mechanisms and for serving as a hub for knowledge sharing and learning within the context of South-South cooperation. The scheme continues to shape national health insurance thinking in Africa...
October 1, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812807/health-technology-assessment-global-advocacy-and-local-realities-comment-on-priority-setting-for-universal-health-coverage-we-need-evidence-informed-deliberative-processes-not-just-more-evidence-on-cost-effectiveness
#17
Kalipso Chalkidou, Ryan Li, Anthony J Culyer, Amanda Glassman, Karen J Hofman, Yot Teerawattananon
Cost-effectiveness analysis (CEA) can help countries attain and sustain universal health coverage (UHC), as long as it is context-specific and considered within deliberative processes at the country level. Institutionalising robust deliberative processes requires significant time and resources, however, and countries often begin by demanding evidence (including local CEA evidence as well as evidence about local values), whilst striving to strengthen the governance structures and technical capacities with which to generate, consider and act on such evidence...
August 29, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812792/a-case-for-open-network-health-systems-systems-as-networks-in-public-mental-health
#18
Michael Grant Rhodes, Marten W de Vries
Increases in incidents involving so-called confused persons have brought attention to the potential costs of recent changes to public mental health (PMH) services in the Netherlands. Decentralized under the (Community) Participation Act (2014), local governments must find resources to compensate for reduced central funding to such services or "innovate." But innovation, even when pressure for change is intense, is difficult. This perspective paper describes experience during and after an investigation into a particularly violent incident and murder...
January 8, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812723/the-unconstrained-evolution-of-fast-and-efficient-antibiotic-resistant-bacterial-genomes
#19
Carlos Reding-Roman, Mark Hewlett, Sarah Duxbury, Fabio Gori, Ivana Gudelj, Robert Beardmore
Evolutionary trajectories are constrained by trade-offs when mutations that benefit one life history trait incur fitness costs in other traits. As resistance to tetracycline antibiotics by increased efflux can be associated with an increase in length of the Escherichia coli chromosome of 10% or more, we sought costs of resistance associated with doxycycline. However, it was difficult to identify any because the growth rate (r), carrying capacity (K) and drug efflux rate of E. coli increased during evolutionary experiments where the species was exposed to doxycycline...
January 30, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812653/adaptation-of-phytoplankton-to-a-decade-of-experimental-warming-linked-to-increased-photosynthesis
#20
C-Elisa Schaum, Samuel Barton, Elvire Bestion, Angus Buckling, Bernardo Garcia-Carreras, Paula Lopez, Chris Lowe, Samraat Pawar, Nicholas Smirnoff, Mark Trimmer, Gabriel Yvon-Durocher
Phytoplankton photosynthesis is a critical flux in the carbon cycle, accounting for approximately 40% of the carbon dioxide fixed globally on an annual basis and fuelling the productivity of aquatic food webs. However, rapid evolutionary responses of phytoplankton to warming remain largely unexplored, particularly outside the laboratory, where multiple selection pressures can modify adaptation to environmental change. Here, we use a decade-long experiment in outdoor mesocosms to investigate mechanisms of adaptation to warming (+4 °C above ambient temperature) in the green alga Chlamydomonas reinhardtii, in naturally assembled communities...
March 20, 2017: Nature ecology & evolution
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