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https://www.readbyqxmd.com/read/29775943/air-pollutant-emissions-and-mitigation-potential-through-the-adoption-of-semi-coke-coals-and-improved-heating-stoves-field-evaluation-of-a-pilot-intervention-program-in-rural-china
#1
Yafei Liu, You Zhang, Chuang Li, Yun Bai, Daoming Zhang, Chunyu Xue, Guangqing Liu
Pollutant emissions from incomplete combustion of raw coal in low-efficiency residential heating stoves greatly contribute to winter haze in China. Semi-coke coals and improved heating stoves are expected to lower air pollutant emissions and are vigorously promoted by the Chinese government in many national and local plans. In this study, the thermal performance and air pollutant emissions from semi-coke combustion in improved heating stoves were measured in a pilot rural county and compared to the baseline of burning raw coal to quantify the mitigation potential of air pollutant emissions...
May 15, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29775924/public-project-success-as-seen-in-a-broad-perspective-lessons-from-a-meta-evaluation-of-20-infrastructure-projects-in-norway
#2
Gro Holst Volden
Infrastructure projects in developed countries are rarely evaluated ex-post. Despite their number and scope, our knowledge about their various impacts is surprisingly limited. The paper argues that such projects must be assessed in a broad perspective that includes both operational, tactical and strategic aspects, and unintended as well as intended effects. A generic six-criteria evaluation framework is suggested, inspired by a framework frequently used to evaluate development assistance projects. It is tested on 20 Norwegian projects from various sectors (transport, defence, ICT, buildings)...
April 30, 2018: Evaluation and Program Planning
https://www.readbyqxmd.com/read/29775634/the-direction-of-protein-evolution-is-destined-by-the-stability
#3
Natsuko Ota, Ryo Kurahashi, Satoshi Sano, Kazufumi Takano
Protein evolution is potentially governed by protein stability. Here, we investigated the relationship between protein evolution and stability through the random mutational drift of a thermophilic bacterial protein, an esterase of Alicyclobacillus acidocaldarius (Aac-Est), at high and low temperatures. In the first random mutation of Aac-Est, few proteins exhibit increased activity at 65°C, indicating that the wild-type (WT) Aac-Est is located on the peak of a mountain in a fitness landscape for activity at high temperature...
May 15, 2018: Biochimie
https://www.readbyqxmd.com/read/29775608/regulation-of-the-gyr-operon-of-mycobacterium-tuberculosis-by-overlapping-promoters-dna-topology-and-reiterative-transcription
#4
Rajiv Kumar Jha, Priyanka Tare, Valakunja Nagaraja
DNA gyrase introduces negative supercoils into DNA to maintain topological homeostasis. The genes encoding gyrase, gyrB and gyrA, form a dicistronic operon in Mycobacterium tuberculosis (Mtb) and other actinobacteria. Earlier work indicated that DNA relaxation stimulates the expression of the gyr genes, a phenomenon termed relaxation-stimulated transcription (RST). The present study addresses the underlying mechanism of gyr operon regulation. The operon is regulated by overlapping and divergently oriented promoters located upstream of gyrB...
May 15, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29775596/digital-museum-of-retinal-ganglion-cells-with-dense-anatomy-and-physiology
#5
J Alexander Bae, Shang Mu, Jinseop S Kim, Nicholas L Turner, Ignacio Tartavull, Nico Kemnitz, Chris S Jordan, Alex D Norton, William M Silversmith, Rachel Prentki, Marissa Sorek, Celia David, Devon L Jones, Doug Bland, Amy L R Sterling, Jungman Park, Kevin L Briggman, H Sebastian Seung
When 3D electron microscopy and calcium imaging are used to investigate the structure and function of neural circuits, the resulting datasets pose new challenges of visualization and interpretation. Here, we present a new kind of digital resource that encompasses almost 400 ganglion cells from a single patch of mouse retina. An online "museum" provides a 3D interactive view of each cell's anatomy, as well as graphs of its visual responses. The resource reveals two aspects of the retina's inner plexiform layer: an arbor segregation principle governing structure along the light axis and a density conservation principle governing structure in the tangential plane...
May 17, 2018: Cell
https://www.readbyqxmd.com/read/29775582/src-3-coactivator-governs-dynamic-estrogen-induced-chromatin-looping-interactions-during-transcription
#6
Anil K Panigrahi, Charles E Foulds, Rainer B Lanz, Ross A Hamilton, Ping Yi, David M Lonard, Ming-Jer Tsai, Sophia Y Tsai, Bert W O'Malley
Enhancers are thought to activate transcription by physically contacting promoters via looping. However, direct assays demonstrating these contacts are required to mechanistically verify such cellular determinants of enhancer function. Here, we present versatile cell-free assays to further determine the role of enhancer-promoter contacts (EPCs). We demonstrate that EPC is linked to mutually stimulatory transcription at the enhancer and promoter in vitro. SRC-3 was identified as a critical looping determinant for the estradiol-(E2)-regulated GREB1 locus...
May 17, 2018: Molecular Cell
https://www.readbyqxmd.com/read/29775507/-coming-from-a-different-place-partnerships-between-consumers-and-health-services-for-system-change
#7
Brett Scholz, Julia Bocking, Michelle Banfield, Chris Platania-Phung, Brenda Happell
AIMS AND OBJECTIVES: The aim of the current study is to explore whether and how the expectations of consumers to be 'representative' influences consumers' ability to contribute to health services partnerships. BACKGROUND: Health standards call for services to partner with consumers in service development and governance. While existing research criticises the assumption that individual mental health consumers working with mental health services must be representative of consumers more broadly, research has yet to explore whether this requirement exists for consumers of other health services...
May 18, 2018: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/29775317/a-combined-sfg-and-thin-liquid-film-study-of-the-specific-effect-of-monovalent-cations-on-interfacial-water-structure
#8
Afshin Asadzadeh Shahir, Khristo Khristov, Khoi Tan Nguyen, Anh V Nguyen, Elena D Mileva
Some salts have been recently shown to decrease the SFG (sum frequency generation spectroscopy) intensity of the hydrogen-bonded water molecules, but a quantitative explanation is still awaited. Here we report a similar trend for the chloride salts of monovalent cations, i.e., LiCl, NaCl, and CsCl, at low concentrations. Specifically, we revealed not only the specific adsorption of cations at the water surface but also the concentration-dependent effect of ions on the SFG response of the interfacial water molecules...
May 18, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29774957/progress-and-challenges-in-consolidating-the-management-of-amazonian-protected-areas-and-indigenous-territories
#9
Raymond E Gullison, Jared Hardner
Achieving the effective management of all existing protected areas and indigenous territories in the Amazon Biome may be needed to avoid a deforestation "tipping point" beyond which regional climatic feedbacks and global climate change interact to catalyze irreversible drying and savannization of large portions of the biome. However, the time and money required to consolidate the effective management of all types of protected sites in the Amazon is still poorly understood. At present, protected areas and indigenous territories cover 45...
May 18, 2018: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/29774488/the-effect-of-oxygen-in-sirt3-mediated-myocardial-protection-a-proof-of-concept-study-in-cultured-cardiomyoblasts
#10
Philipp Diehl, Daniel S Gaul, Jonas Sogl, Ulrike Flierl, Darren Henstridge, Juergen Pahla, Heiko Bugger, Maximilian Y Emmert, Frank Ruschitzka, Christoph Bode, Thomas F Lüscher, Martin Moser, Christian M Matter, Karlheinz Peter, Stephan Winnik
Sirtuin 3 is a nicotinamide adenine dinucleotide dependent mitochondrial deacetylase that governs mitochondrial metabolism and oxidative defense. The demise in myocardial function following myocardial ischemia has been associated with mitochondrial dysfunction. Sirt3 maintains myocardial contractile function and protects from cardiac hypertrophy. The role of Sirt3 in ischemia is controversial. Our objective was to understand, under what circumstances Sirt3 is protective in different facets of ischemia, using an in vitro proof-of-concept approach based on simulated ischemia in cultured cardiomyoblasts...
May 17, 2018: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/29774400/cost-effectiveness-of-osteoporosis-screening-strategies-for-hip-fracture-prevention-in-older-chinese-people-a-decision-tree-modeling-study-in-the-mr-os-and-ms-os-cohort-in-hong-kong
#11
Y Su, F T T Lai, B H K Yip, J C S Leung, T C Y Kwok
Despite the high costs of hip fracture, many governments provide limited support for osteoporosis screening. We demonstrated that osteoporosis screening by dual-energy X-ray absorptiometry (DXA) with or without pre-screening by Fracture Risk Assessment Tool (FRAX) or calcaneal ultrasound are more cost-effective than no screening in Chinese people aged 65 or over in Hong Kong. INTRODUCTION: To examine the cost-effective potential osteoporosis screening strategies for hip fracture prevention in Hong Kong...
May 17, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29774298/cystic-echinococcosis-in-marketed-offal-of-sheep-in-basrah-iraq-abattoir-based-survey-and-a-probabilistic-model-estimation-of-the-direct-economic-losses-due-to-hydatid-cyst
#12
Mohanad F Abdulhameed, Ihab Habib, Suzan A Al-Azizz, Ian Robertson
Cystic echinococcosis (CE) is a highly endemic parasitic zoonosis in Iraq with substantial impacts on livestock productivity and human health. The objectives of this study were to study the abattoir-based occurrence of CE in marketed offal of sheep in Basrah province, Iraq, and to estimate, using a probabilistic modelling approach, the direct economic losses due to hydatid cysts. Based on detailed visual meat inspection, results from an active abattoir survey in this study revealed detection of hydatid cysts in 7...
February 2018: Parasite Epidemiology and Control
https://www.readbyqxmd.com/read/29774264/development-of-a-health-promotion-programme-to-improve-awareness-of-factors-that-affect-fertility-and-evaluation-of-its-reach-in-the-first-5-years
#13
Karin Hammarberg, Robert J Norman, Sarah Robertson, Robert McLachlan, Janet Michelmore, Louise Johnson
Awareness among people of reproductive age about the factors that influence fertility and reproductive outcomes, including medically assisted reproduction outcomes, is generally low. To improve awareness about the potentially modifiable factors that affect fertility and reproductive outcomes, 'Your Fertility', a fertility health promotion programme funded by the Australian Government, was established in 2011. This paper describes the development and evaluation of the reach of the Your Fertility programme from its inception in 2011 to June 2016...
June 2017: Reproductive Biomedicine & Society Online
https://www.readbyqxmd.com/read/29774261/same-sex-parenting-assisted-reproduction-and-gender-asymmetry-reflecting-on-the-differential-effects-of-legislation-on-gay-and-lesbian-family-formation-in-spain
#14
Elixabete Imaz
This article takes an anthropological approach to examine how laws governing family formation in Spain affect same-sex couples seeking to become parents, in particular the cultural causes and implications of such laws. It highlights how the same laws are has a different impact on gay couples and lesbian couples. Legislation combines with other factors to favour and expand the possibilities of accessing motherhood for women in lesbian couples while limiting the possibilities of parenthood for men in gay couples...
June 2017: Reproductive Biomedicine & Society Online
https://www.readbyqxmd.com/read/29774114/breast-cancer-and-cervical-cancer-prevention-programmes-carried-out-by-local-government-units-in-poland-in-2009-2014
#15
Anna Augustynowicz, Aleksandra Czerw, Mariola Borowska, Adam Fronczak, Andrzej Deptała
Background: In 2014 the standardised incidence rate for breast cancer in Poland reached 51.6/100,000, while the mortality rate reached 14.8/100,000. The incidence rate for breast cancer in the EU was 106.6/100,000, the mortality rate - 22.4/100,000. In 2014 the incidence rate for cervical cancer in Poland was 8.8/100,000, the mortality rate - 4.5/100,000. The incidence rate in the EU was 11.3/100,000 and the mortality rate - 3.7/100,000. Objective: The aim of the paper was to establish the number of health policy programmes concerned with breast cancer and cervical cancer in women carried out in 2009-2014 by local government units, with specification of the type of programme, type of local government units that carried out the programmes and the costs of implementation of the programmes...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29774067/estrogen-receptors-orchestrate-cell-growth-and-differentiation-to-facilitate-liver-regeneration
#16
Ta-Lun Kao, Yu-Ping Kuan, Wei-Chung Cheng, Wei-Chun Chang, Long-Bin Jeng, Shuyuan Yeh, Wen-Lung Ma
Background and Aims: Improving liver regeneration (LR) capacity and thereby liver function reserve is a critical bridging strategy for managing liver failure patients. Since estrogen signaling may participate in LR, our aim was to characterize the roles of ERα and ERβ in LR. Methods: LR capacity and estradiol levels following 2/3rd partial hepatectomy (PHx) were compared in ERα-KO or ERβ-KO vs. wildtype mice. The ERα- or ERβ-related transcriptome and interactome were analyzed from regenerating livers, and then bioinformatics was used for pathway discovery and analysis of interactome-transcriptome relationships...
2018: Theranostics
https://www.readbyqxmd.com/read/29773979/efficient-coding-and-energy-efficiency-are-promoted-by-balanced-excitatory-and-inhibitory-synaptic-currents-in-neuronal-network
#17
Lianchun Yu, Zhou Shen, Chen Wang, Yuguo Yu
Selective pressure may drive neural systems to process as much information as possible with the lowest energy cost. Recent experiment evidence revealed that the ratio between synaptic excitation and inhibition (E/I) in local cortex is generally maintained at a certain value which may influence the efficiency of energy consumption and information transmission of neural networks. To understand this issue deeply, we constructed a typical recurrent Hodgkin-Huxley network model and studied the general principles that governs the relationship among the E/I synaptic current ratio, the energy cost and total amount of information transmission...
2018: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29773819/a-comprehensive-study-on-microstructure-and-tensile-behaviour-of-a-selectively-laser-melted-stainless-steel
#18
Chunlei Qiu, Mohammed Al Kindi, Aiman Salim Aladawi, Issa Al Hatmi
316L stainless steel samples have been prepared by selective laser melting (SLM) using a pulsed laser mode and different laser powers and scanning patterns. The as-fabricated samples were found to be dominated by clusters of nano-sized γ needles or cells. TEM imaging shows that these needles contain a high population of dislocations while TEM-EDX analysis reveals high chemical homogeneity throughout the as-fabricated samples as evidenced by the fact that there is even no micro-/nano-segregation at interfaces between neighbouring γ needles...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773774/us-and-cuban-scientists-forge-collaboration-on-arbovirus-research
#19
Jorge Pérez-Ávila, Maria G Guzmán-Tirado, Jorge Fraga-Nodarse, Gray Handley, James Meegan, Jose L Pelegrino-Martínez de la Cotera, Anthony S Fauci
After December 17, 2014, when the US and Cuban governments announced their intent to restore relations, the two countries participated in various exchange activities in an effort to encourage cooperation in public health, health research and biomedical sciences. The conference entitled Exploring Opportunities for Arbovirus Research Collaboration, hosted at Havana's Hotel Nacional, was part of these efforts and was the first major US-Cuban scientific conference in over 50 years. Its purpose was to share information about current arbovirus research and recent findings, and to explore opportunities for future joint research...
April 2018: MEDICC Review
https://www.readbyqxmd.com/read/29773773/cuban-epidemic-neuropathy-insights-into-the-toxic-nutritional-hypothesis-through-international-collaboration
#20
Alina González-Quevedo, Rosaralis Santiesteban-Freixas, Janis T Eells, Lucimey Lima, Alfredo A Sadun
From 1991 to 1993, an epidemic of optic and peripheral neuropathy-the largest of the century-broke out in Cuba, affecting more than 50,000 people. Initially the main clinical features were decreased visual acuity, central and cecocentral scotomas, impaired color vision and absence of the papillomacular bundle. Later, peripheral and mixed optic-peripheral forms began to appear. Due to the magnitude of the epidemic, the Cuban government requested help from the international community at the 46th World Health Assembly in 1993...
April 2018: MEDICC Review
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