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Gina A Mackert, Matthias Schulte, Christoph Hirche, Dimitra Kotsougiani, Julian Vogelpohl, Bernd Hoener, Teresa Fiebig, Stefanie Kirschner, Marc A Brockmann, Marcus Lehnhardt, Ulrich Kneser, Leila Harhaus
PURPOSE: As result of the current demographic changes, osteoporosis and osteoporotic fractures are becoming an increasing social and economic burden. In this experimental study, extracorporeal shock wave therapy (ESWT), was evaluated as a treatment option for the improvement of osteoporotic fracture healing. METHODS: A well-established fracture model in the metaphyseal tibia in the osteoporotic rat was used. 132 animals were divided into 11 groups, with 12 animals each, consisting of one sham-operated group and 10 ovariectomized (osteoporotic) groups, of which 9 received ESWT treatment...
2017: PloS One
Ieva Migliniene, Vytautas Ostasevicius, Rimvydas Gaidys, Rolanas Dauksevicius, Giedrius Janusas, Vytautas Jurenas, Povilas Krasauskas
This paper proposes an approach for designing an efficient vibration energy harvester based on a vibro-impacting piezoelectric microcantilever with a geometric shape that has been rationally modified in accordance with results of dynamic optimization. The design goal is to increase the amplitudes of higher-order vibration modes induced during the vibro-impact response of the piezoelectric transducer, thereby providing a means to improve the energy conversion efficiency and power output. A rational configuration of the energy harvester is proposed and it is demonstrated that the new design retains essential modal characteristics of the optimal microcantilever structures, further providing the added benefit of less costly fabrication...
December 12, 2017: Sensors
A Svedbom, F Borgstöm, E Hernlund, O Ström, V Alekna, M L Bianchi, P Clark, M D Curiel, H P Dimai, M Jürisson, R Kallikorm, M Lember, O Lesnyak, E McCloskey, K M Sanders, S Silverman, A Solodovnikov, M Tamulaitiene, T Thomas, N Toroptsova, A Uusküla, A N A Tosteson, B Jönsson, J A Kanis
This study used data from the International Costs and Utilities Related to Osteoporotic fractures Study (ICUROS) to estimate the quality of life (QoL) impact of fracture. Hip, vertebral, and distal forearm fractures incur substantial QoL losses. Hip and vertebral fracture results in markedly impaired QoL for at least 18 months. INTRODUCTION: The International Costs and Utilities Related to Osteoporotic fractures Study (ICUROS) is a multinational observational study that aims to describe costs and quality of life (QoL) consequences of osteoporotic fractures...
December 11, 2017: Osteoporosis International
Tetsuya Kajita, Takashi Itoh
Energy storage devices using sodium ions have great potential in terms of their low cost, high power, and long life. In particular, there could be a significant cost reduction, because of the abundant resource of sodium. Recently, electro-chemical sodium storage performance has been demonstrated in graphite anodes using ether-based solvents. However, the high power and long life were not compatible in the same ether solution. Here, we demonstrated using mixed ether-based solvents that a long cycle life and high rate capability can coexist in the graphite anodes for sodium-ion batteries...
December 12, 2017: Physical Chemistry Chemical Physics: PCCP
Melissa M Arcand, David J Levy-Booth, Bobbi L Helgason
Long-term contrasts in agricultural management can shift soil resource availability with potential consequences to microbial carbon (C) use efficiency (CUE) and the fate of C in soils. Isothermal calorimetry was combined with 13C-labeled glucose stable isotope probing (SIP) of 16S rRNA genes to test the hypothesis that organically managed soils would support microbial communities with greater thermodynamic efficiency compared to conventional soils due to a legacy of lower resource availability and a resultant shift toward communities supportive of more oligotrophic taxa...
2017: Frontiers in Microbiology
Marilyn Tseng, Dawn B Neill, Stephanie F Teaford, Aydin Nazmi
OBJECTIVE: Compare saturated fat, sugar, and sodium in the US Department of Agriculture sample menu with a version in which menu items were replaced with comparable ultra-processed foods. DESIGN AND SETTING: The authors modified 7 days of a US Department of Agriculture sample menu providing approximately 2,000 kcal/d by replacing foods with comparable ultra-processed alternatives and then visited 2 chain supermarkets in San Luis Obispo, CA (August, 2016) to locate shopping list items for the 2 menu versions...
December 8, 2017: Journal of Nutrition Education and Behavior
Sharon Flora Kramer, Toby Cumming, Julie Bernhardt, Liam Johnson
OBJECTIVE: Cardiorespiratory fitness levels are very low after stroke, indicating that the majority of stroke survivors are unable to independently perform daily activities. Physical fitness training improves exercise capacity poststroke; however, the optimal timing and intensity of training is unclear. Understanding the energy cost of steady-state activity is necessary to guide training prescription early poststroke. We aimed to determine if acute stroke survivors can reach steady state (oxygen-uptake variability ≤2...
December 8, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Paola Branduardi, Michael Sauer
The exploitation of petroleum as energy and material source opened unprecedented possibilities for the development of our human societies, but only now we realize that the use of fossil resources comes at devastatingly high environmental costs. Consequently, our efforts to tap other carbon sources are steadily increasing. Industrial microbiology has the potential to use carbon dioxide directly as carbon source, thereby converting a foe into a friend. This thematic issue of FEMS Microbiology Letters sheds some light on recent developments for the understanding of microbial pathways for carbon dioxide fixation and on strategies for their industrial exploitation...
December 6, 2017: FEMS Microbiology Letters
Silvia Gonçalves Ricci Neri, André Bonadias Gadelha, Ana Cristina de David, Aparecido Pimentel Ferreira, Marisete Peralta Safons, Anne Tiedemann, Ricardo M Lima
BACKGROUND AND PURPOSE: Recent investigations demonstrate an association between obesity and the propensity of older adults to fall. The aim of this study was to investigate the association between body adiposity measures, postural balance, fear of falling, and risk of falls in older women. METHODS: One hundred forty-seven volunteers took part in this cross-sectional study. Participants underwent body composition assessment using dual-energy x-ray absorptiometry and had body mass index, waist circumference (WC), and body adiposity index measured...
December 7, 2017: Journal of Geriatric Physical Therapy
Guoqiang Zou, Hongshuai Hou, Peng Ge, Zhaodong Huang, Ganggang Zhao, Dulin Yin, Xiaobo Ji
Recently, sodium-ion batteries (SIBs) are extensively explored and are regarded as one of the most promising alternatives to lithium-ion batteries for electrochemical energy conversion and storage, owing to the abundant raw material resources, low cost, and similar electrochemical behavior of elemental sodium compared to lithium. Metal-organic frameworks (MOFs) have attracted enormous attention due to their high surface areas, tunable structures, and diverse applications in drug delivery, gas storage, and catalysis...
December 11, 2017: Small
Tae Gon Kim, Hye Jin Park, Kyoohee Woo, Sunho Jeong, Youngmin Choi, Su Yeon Lee
Conductive metallic nanomaterials applicable to low-cost and scalable methods have attracted great attention. Among these, Cu-based electrodes appear promising for flexible and stretchable electronic devices. However, Cu nanoparticle (NP)-based electrodes are inherently sensitive to oxygen and moisture, which hinder their practical applications. In this work, fabrication and application of highly conductive, robust, flexible, and oxidation-resistant Cu-Ni core-shell NP-based electrodes have been reported. Cu@Ni core-shell NPs with a tunable Ni shell thickness were synthesized by varying the Cu/Ni molar ratios in the precursor solution...
December 11, 2017: ACS Applied Materials & Interfaces
Ting Jin, Qingqing Han, Yijing Wang, Lifang Jiao
Sodium-ion batteries (SIBs) have received extensive attention as ideal candidates for large-scale energy storage systems (ESSs) owing to the rich resources and low cost of sodium (Na). However, the larger size of Na+ and the less negative redox potential of Na+ /Na result in low energy densities, short cycling life, and the sluggish kinetics of SIBs. Therefore, it is necessary to develop appropriate Na storage electrode materials with the capability to host larger Na+ and fast ion diffusion kinetics. 1D materials such as nanofibers, nanotubes, nanorods, and nanowires, are generally considered to be high-capacity and stable electrode materials, due to their uniform structure, orientated electronic and ionic transport, and strong tolerance to stress change...
December 11, 2017: Small
Dandan Liu, Tianye Zheng, Cees Buisman, Annemiek Ter Heijne
Methane-producing bioelectrochemical systems (BESs) are a promising technology to convert renewable surplus electricity into the form of storable methane. One of the key challenges for this technology is the search for suitable cathode materials with improved biocompatibility and low cost. Here, we study heat-treated stainless steel felt (HSSF) for its performance as biocathode. The HSSF had superior electrocatalytic properties for hydrogen evolution compared to untreated stainless steel felt (SSF) and graphite felt (GF), leading to a faster start-up of the biocathodes...
December 4, 2017: ACS Sustainable Chemistry & Engineering
Katharina Anna Lindlbauer, Hans Marx, Michael Sauer
Background: In their quest for sustainable development and effective management of greenhouse gas emissions, our societies pursue a shift away from fossil-based resources towards renewable resources. With 95% of our current transportation energy being petroleum based, the application of alternative, carbon-neutral products-among them biodiesel-is inevitable. In order to enhance the cost structure of biodiesel biorefineries, the valorization of the crude glycerol waste stream into high-value platform chemicals is of major importance...
2017: Biotechnology for Biofuels
Michael T Richardson, Leah M Backhus, Mark F Berry, Daniel G Vail, Kelsey C Ayers, Jalen A Benson, Prasha Bhandari, Mehran Teymourtash, Joseph B Shrager
OBJECTIVE: To determine whether surgeon selection of instrumentation and other supplies during video-assisted thoracoscopic lobectomy (VATSL) can safely reduce intraoperative costs. METHODS: In this retrospective, cost-focused review of all video-assisted thoracoscopic surgery anatomic lung resections performed by 2 surgeons at a single institution between 2010 and 2014, we compared VATSL hospital costs and perioperative outcomes between the surgeons, as well as costs of VATSL compared with thoracotomy lobectomy (THORL)...
November 13, 2017: Journal of Thoracic and Cardiovascular Surgery
Roger Borges, Loana Mara Baika, Marco Tadeu Grassi, Fernando Wypych
Chrysotile fibers pose a threat to public health due to their association relation to respiratory malignant lung disease such as cancer. For this reason, they must be stored and discarded appropriately, including after treatment, which raises costs. In the present study, insoluble chrysotile fibers were milled in solid state with highly soluble K2HPO4, destroying both structures, making the chrysotile nontoxic and generating a new material with potential use as sustainable slow-release fertilizer (SSRF) containing mainly K and P...
December 6, 2017: Journal of Environmental Management
Rongping Lin, Shan Luo, Haoran Wang, Sheng Wang
Network virtualization technology has been proposed to allow multiple heterogeneous virtual networks (VNs) to coexist on a shared substrate network, which increases the utilization of the substrate network. Efficiently mapping VNs on the substrate network is a major challenge on account of the VN embedding (VNE) problem. Meanwhile, energy efficiency has been widely considered in the network design in terms of operation expenses and the ecological awareness. In this paper, we aim to solve the energy-aware VNE problem in flexi-grid optical networks...
November 27, 2017: Optics Express
Shivali Sahota, Virendra Kumar Vijay, P M V Subbarao, Ram Chandra, Pooja Ghosh, Goldy Shah, Rimika Kapoor, Vandit Vijay, Vaibhav Koutu, Indu Shekhar Thakur
Installation of decentralized units for biogas production along with indigenous upgradation systems can be an effective approach to meet growing energy demands of the rural population. Therefore, readily available leaf waste was used to prepare biochar at different temperatures and employed for H2S removal from biogas produced via anaerobic digestion plant. It is found that biochar prepared via carbonization of leaf waste at 400 °C effectively removes 84.2% H2S (from 1254 ppm to 201 ppm) from raw biogas for 25 min in a continuous adsorption tower...
November 29, 2017: Bioresource Technology
Anna Vilajeliu-Pons, Christin Koch, Maria D Balaguer, Jesús Colprim, Falk Harnisch, Sebastià Puig
Removal of nitrogen, mainly in form of ammonium (NH4+), in wastewater treatment plants (WWTPs) is a highly energy demanding process, mainly due to aeration. It causes costs of about half a million Euros per year in an average European WWTP. Alternative, more economical technologies for the removal of nitrogen compounds from wastewater are required. This study proves the complete anoxic conversion of ammonium (NH4+) to dinitrogen gas (N2) in continuously operated bioelectrochemical systems at the litre-scale...
December 1, 2017: Water Research
Nabil Bouazizi, Radhouane Bargougui, Pascal Thebault, Thomas Clamens, Florie Desriac, Flavia Fioresi, Guy Ladam, Sandrine Morin-Grognet, Nadine Mofaddel, Olivier Lesouhaitier, Franck Le Derf, Julien Vieillard
This article reports the synthesis and functionalization of a novel CuO@SiO2-APTES@Ag0 core-shell-shell material using a simple and low-cost process. The growth, design strategies and synthesis approach are the key factors for the development of CuO@SiO2-APTES@Ag0 as efficient material with enhanced antibacterial activity. We investigated the morphology, surface charge, structure and stability of our new core-shell-shell by atomic force microscopy, scanning electron microscopy, energy dispersive X-ray, Fourier transform infrared and UV-visible spectroscopies, zeta potential measurements, and differential scanning calorimetry...
December 2, 2017: Journal of Colloid and Interface Science
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