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Julie Kleber
With the largest body of employees in U.S. health care, the nursing profession is well positioned to tackle the challenges of waste reduction within hospital systems. The healthcare sector generates a massive amount of waste, contributing to environmental issues, such as air and water pollution. By unifying and engaging staff through shared governance models, nurses can reduce the overhead costs associated with waste management and help maintain fiscal integrity. Nurses have the ability to use their trusted skill sets and lead the way for sustainable, healthy communities and environments in which they serve...
June 1, 2018: Clinical Journal of Oncology Nursing
Olivia Ellis, Hilary Godwin, Maren David, Dan J Morse, Romney Humphries, Daniel Z Uslan
BACKGROUND: A major limitation to developing evidence-based approaches to infection prevention is the paucity of real-time, quantitative methods for monitoring the cleanliness of environmental surfaces in clinical settings. One solution that has been proposed is adenosine triphosphate (ATP) bioluminescence assays, but this method does not provide information about the source of the ATP. MATERIALS/METHODS: To address this gap, we conducted a study in which ATP bioluminescence was coupled with traditional RODAC sampling and matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry to assess which organisms were viable and present...
May 17, 2018: American Journal of Infection Control
Aleksander Kubica, Michael E Beverland, Fernando Brandão, John Preskill, Krysta M Svore
Three-dimensional (3D) color codes have advantages for fault-tolerant quantum computing, such as protected quantum gates with relatively low overhead and robustness against imperfect measurement of error syndromes. Here we investigate the storage threshold error rates for bit-flip and phase-flip noise in the 3D color code (3DCC) on the body-centered cubic lattice, assuming perfect syndrome measurements. In particular, by exploiting a connection between error correction and statistical mechanics, we estimate the threshold for 1D stringlike and 2D sheetlike logical operators to be p_{3DCC}^{(1)}≃1...
May 4, 2018: Physical Review Letters
Christian Burkart, Tina Wakolbinger, Fuminori Toyasaki
Performance measurement of Non-Profit Organizations (NPOs) is of increasing importance for aid agencies, policy-makers and donors. A widely used benchmark for measuring the efficiency of NPOs is the overhead cost ratio, consisting of the total money spent on administration and fundraising relative to the budget. Donors generally favor a lower overhead cost ratio as it ensures that more money directly reaches beneficiaries. Unlike fundraising expenses, administrative costs do not contribute to advertising the actions of an NPO even though they account for a significant proportion of overhead cost...
2018: Central European Journal of Operations Research
Qian Xu, Chengxiang Tan, Zhijie Fan, Wenye Zhu, Ya Xiao, Fujia Cheng
Nowadays, fog computing provides computation, storage, and application services to end users in the Internet of Things. One of the major concerns in fog computing systems is how fine-grained access control can be imposed. As a logical combination of attribute-based encryption and attribute-based signature, Attribute-based Signcryption (ABSC) can provide confidentiality and anonymous authentication for sensitive data and is more efficient than traditional "encrypt-then-sign" or "sign-then-encrypt" strategy...
May 17, 2018: Sensors
Shalu Thomas, Sangamithra Ravishankaran, N A Johnson Amala Justin, Aswin Asokan, T Maria Jusler Kalsingh, Manu Thomas Mathai, Neena Valecha, Jacqui Montgomery, Matthew B Thomas, Alex Eapen
BACKGROUND: Environmental factors such as temperature, relative humidity and their daily variation influence a range of mosquito life history traits and hence, malaria transmission. The standard way of characterizing environmental factors with meteorological station data need not be the actual microclimates experienced by mosquitoes within local transmission settings. METHODS: A year-long study was conducted in Chennai, India to characterize local temperature and relative humidity (RH)...
May 16, 2018: Malaria Journal
Alessandro Jose Nunes da Silva, Ildeberto Muniz de Almeida, Rodolfo Andrade de Gouveia Vilela, Renata Wey Berti Mendes, Sandra Lorena Beltran Hurtado
The Brazilian electricity sector has recorded high work-related mortality rates that have been associated with outsourcing, used to cut costs. In order to decrease the power outage time for consumers, the industry adopted the automatic circuit recloser as the technical solution. The device has hazardous implications for maintenance workers. The aim of this study was to analyze the origins and consequences of work accidents in power systems with automatic circuit recloser, using the Accident Analysis and Prevention (AAP) model...
May 10, 2018: Cadernos de Saúde Pública
Maureen E Canavan, Erika Linnander, Shirin Ahmed, Halima Mohammed, Elizabeth H Bradley
BACKGROUND: Over the last decade, Ethiopia has made impressive national improvements in health outcomes, including reductions in maternal, neonatal, infant, and child mortality attributed in large part to their Health Extension Program (HEP). As this program continues to evolve and improve, understanding the unit cost of health extension worker (HEW) services is fundamental to planning for future growth and ensuring adequate financial support to deliver effective primary care throughout the country...
September 2, 2017: International Journal of Health Policy and Management
Jessica Washington, Gabrielle Gilmer, Gretchen Oliver
During an overhead throw, the gluteal muscle group stabilizes the lumbopelvic-hip complex (LPHC), leading to efficient energy transfer from the lower to upper extremity. It has been shown that LPHC instability can lead to throwing pathomechanics. The single leg squat has become a common assessment for LPHC stability, and could be used to determine the effects of fatigue on throwing athletes. The purpose of this study was to determine the effects of an acute abduction fatigue protocol on the LPHC of collegiate softball players via the single leg squat assessment of the leg ipsilateral to the throwing arm...
May 14, 2018: International Journal of Sports Medicine
Stefano Nembrini, Inke R König, Marvin N Wright
Motivation: Random forests are fast, flexible and represent a robust approach to analyze high dimensional data. A key advantage over alternative machine learning algorithms are variable importance measures, which can be used to identify relevant features or perform variable selection. Measures based on the impurity reduction of splits, such as the Gini importance, are popular because they are simple and fast to compute. However, they are biased in favor of variables with many possible split points and high minor allele frequency...
May 10, 2018: Bioinformatics
A S M Sanwar Hosen, Gi Hwan Cho
Clustering is an effective way to prolong the lifetime of a wireless sensor network (WSN). The common approach is to elect cluster heads to take routing and controlling duty, and to periodically rotate each cluster head's role to distribute energy consumption among nodes. However, a significant amount of energy dissipates due to control messages overhead, which results in a shorter network lifetime. This paper proposes an energy-centric cluster-based routing mechanism in WSNs. To begin with, cluster heads are elected based on the higher ranks of the nodes...
May 11, 2018: Sensors
Farhan Aadil, Ali Raza, Muhammad Fahad Khan, Muazzam Maqsood, Irfan Mehmood, Seungmin Rho
Flying ad-hoc networks (FANETs) are a very vibrant research area nowadays. They have many military and civil applications. Limited battery energy and the high mobility of micro unmanned aerial vehicles (UAVs) represent their two main problems, i.e., short flight time and inefficient routing. In this paper, we try to address both of these problems by means of efficient clustering. First, we adjust the transmission power of the UAVs by anticipating their operational requirements. Optimal transmission range will have minimum packet loss ratio (PLR) and better link quality, which ultimately save the energy consumed during communication...
May 3, 2018: Sensors
Mohamud A Verjee, Robert Crone, Grigory Ostrovskiy
Airline travel is more affordable than ever and likely safer than ever too. Within half a day, a passenger can be on the other side of the world. However, medical care in-flight has been an issue for those with medical conditions and for those who fall sick during a journey. While airlines have the advice of multiple recognized organizations on needs and standards of care, in-flight emergencies occur at various levels. An emergency medical kit (EMK) together with trained cabin crew can be very effective at resolving the minor problems that arise and reducing the risk of escalation...
2018: Open Access Emergency Medicine: OAEM
Zhen Wang, Yuan Zhuang, Jun Yang, Hengfeng Zhang, Wei Dong, Min Wang, Luchi Hua, Bo Liu, Longxing Shi
Conventional GPS acquisition methods, such as Max selection and threshold crossing (MAX/TC), estimate GPS code/Doppler by its correlation peak. Different from MAX/TC, a multi-layer binarized convolution neural network (BCNN) is proposed to recognize the GPS acquisition correlation envelope in this article. The proposed method is a double dwell acquisition in which a short integration is adopted in the first dwell and a long integration is applied in the second one. To reduce the search space for parameters, BCNN detects the possible envelope which contains the auto-correlation peak in the first dwell to compress the initial search space to 1/1023...
May 9, 2018: Sensors
Shogo Sasaki, Yasuharu Nagano, Hiroshi Ichikawa
Anterior cruciate ligament (ACL) injuries in badminton commonly occur during single-leg landing after an overhead stroke in the backhand-side court. This study compared differences in trunk acceleration and kinematic variables during single-leg landing in the forehand- and backhand-side courts after an overhead stroke. Eighteen female junior badminton players performed two singles games while wearing a tri-axial accelerometer. The moment that over 4g of resultant acceleration was generated was determined using synchronised video cameras...
May 10, 2018: Journal of Sports Sciences
Xinyan Zhou, Xiaoyu Ji, Bin Wang, Yushi Cheng, Zhuoran Ma, Francis Choi, Brian Helmuth, Wenyuan Xu
Intertidal habitats are among the harshest environments on the planet, and have emerged as a model system for exploring the ecological impacts of global climate change. Deploying reliable instrumentation to measure environmental conditions such as temperature is challenging in this environment. The application of wireless sensor networks (WSNs) shows considerable promise as a means of optimizing continuous data collection, but poor link quality and unstable connections between nodes, caused by harsh physical environmental conditions, bring about a delay problem...
May 8, 2018: Sensors
Jie Cui, Wenyu Xu, Hong Zhong, Jing Zhang, Yan Xu, Lu Liu
The Internet of Vehicles (IoV) plays an important role in smart transportation to reduce the drivers’s risk of having an accident and help them manage small emergencies. Therefore, security and privacy issues of the message in the tamper proof device (TPD) broadcasted to other vehicles and roadside units (RSUs) have become an important research subject in the field of smart transportation. Many authentication schemes are proposed to tackle the challenges above and most of them are heavy in computation and communication...
May 7, 2018: Sensors
Jing Huang, Justin A Lemkul, Peter K Eastman, Alexander D MacKerell
Presented is the implementation of the Drude force field in the open-source OpenMM simulation package allowing for access to graphical processing unit (GPU) hardware. In the Drude model, electronic degrees of freedom are represented by negatively charged particles attached to their parent atoms via harmonic springs, such that extra computational overhead comes from these additional particles and virtual sites representing lone pairs on electronegative atoms, as well as the associated thermostat and integration algorithms...
May 4, 2018: Journal of Computational Chemistry
Rui Lin, Joris Van Kerrebrouck, Xiaodan Pang, Michiel Verplaetse, Oskars Ozolins, Aleksejs Udalcovs, Lu Zhang, Lin Gan, Ming Tang, Songnian Fu, Richard Schatz, Urban Westergren, Sergei Popov, Deming Liu, Weijun Tong, Timothy De Keulenaer, Guy Torfs, Johan Bauwelinck, Xin Yin, Jiajia Chen
A BiCMOS chip-based real-time intensity modulation/direct detection spatial division multiplexing system is experimentally demonstrated for both optical interconnects. 100 Gbps/λ/core electrical duobinary (EDB) transmission over 1 km 7-core multicore fiber (MCF) is carried out, achieving KP4 forward error correction (FEC) limit (BER < 2E-4). Using optical dispersion compensation, 7 × 100 Gbps/λ/core transmission of both non-return-to-zero (NRZ) and EDB signals over 10 km MCF transmission is achieved with BER lower than 7% overhead hard-decision FEC limit (BER < 3...
April 16, 2018: Optics Express
Shuai Sun, Ruoyu Zhang, Jiaxin Peng, Vikram K Narayana, Hamed Dalir, Tarek El-Ghazawi, Volker J Sorger
While augmenting network on chips (NoC) with photonic links enables high-bandwidth communication, the overhead for photonics is rather large, mainly driven by bulky footprints and the multi-functionality of transceivers. The latter requires, in addition to a photon source, signal modulation and detection. If the NoC were photonically augmented at every network point to enable all-to-all connectivity, the resulting photonic overhead would be excessive. Besides, the high bandwidth of a single optical bus may be sufficient to supply the data-sharing demand of a network...
April 2, 2018: Optics Express
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