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https://www.readbyqxmd.com/read/30314370/value-of-information-based-data-retrieval-in-uwsns
#1
Fahad Ahmad Khan, Sehar Butt, Saad Ahmad Khan, Ladislau Bölöni, Damla Turgut
Sensor nodes in underwater sensor networks may acquire data at a higher rate than their ability to communicate over underwater acoustic channels. Autonomous underwater vehicles may mitigate this mismatch by offloading high volumes of data from the sensor nodes and ferrying them to the sink. Such a mode of data transfer results in high latency. Occasionally, these networks need to report high priority events such as catastrophes or intrusions. In such a scenario the expectation is to have a minimal end-to-end delay for event reporting...
October 11, 2018: Sensors
https://www.readbyqxmd.com/read/30307742/autologous-chondrocyte-implantation-and-tibial-tubercle-osteotomy-for-patellofemoral-chondral-defects-improved-pain-relief-and-occupational-outcomes-among-us-army-servicemembers
#2
Nicholas J Zarkadis, Philip J Belmont, Michael A Zachilli, Courtney A Holland, Allison R Kinsler, Michael S Todd, Mark P Pallis, Brian R Waterman
BACKGROUND: The occupational and functional results of patellofemoral autologous chondrocyte implantation (ACI) are underreported. This investigation sought to establish clinical outcomes and rates for return to work in a predominantly high-demand military cohort undergoing this procedure. PURPOSE: To determine the return-to-work, pain relief, and perioperative complication rates in a high-demand athletic cohort undergoing patellofemoral ACI. STUDY DESIGN: Case series; Level of evidence, 4...
October 11, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/30301047/sustainable-recycling-of-mooring-ropes-from-decommissioned-offshore-platforms
#3
David Pascoal Sudaia, Milton Briguet Bastos, Elieti Biques Fernandes, Christine Rabello Nascimento, Elen B A V Pacheco, Ana Lúcia N da Silva
Decommissioning offshore Floating Production, Storage and Offloading (FPSO) platforms requires extensive technical knowledge, since it generates different post-consumer materials, including mooring lines. These ropes are made from polyester high tenacity yarn, based on polyethylene terephthalate (PET), and their high added value means they should not be discarded as scrap. This paper aims to present a review and technical opportunities, from an economic standpoint, of recycling the mooring lines recovered from decommissioned FPSOs...
October 2018: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/30274370/swipt-aware-fog-information-processing-local-computing-vs-fog-offloading
#4
Haina Zheng, Ke Xiong, Pingyi Fan, Li Zhou, Zhangdui Zhong
This paper studies a simultaneous wireless information and power transfer (SWIPT)-aware fog computing by using a simple model, where a sensor harvests energy and receives information from a hybrid access point (HAP) through power splitting (PS) receiver architecture. Two information processing modes, local computing and fog offloading modes are investigated. For such a system, two optimization problems are formulated to minimize the sensor's required power for the two modes under the information rate and energy harvesting constraints by jointly optimizing the time assignment and the transmit power, as well as the PS ratio...
September 30, 2018: Sensors
https://www.readbyqxmd.com/read/30257596/statewide-method-of-measuring-ambulance-patient-offload-times
#5
Howard D Backer, Nicole Tatsui D'Arcy, Adam J Davis, Bruce Barton, Karl A Sporer
OBJECTIVE: Ambulance patient offload time (APOT) also known colloquially as "Wall time" has been described in various jurisdictions but seems to be highly variable. Any attempt to improve APOT requires the use of common definitions and standard methodology to measure the extent of the problem. METHODS: An Ambulance Offload Delay Task Force in California developed a set of standard definitions and methodology to measure APOT for transported 911 patients...
September 26, 2018: Prehospital Emergency Care
https://www.readbyqxmd.com/read/30254428/methodological-considerations-of-investigating-adherence-to-using-offloading-devices-among-people-with-diabetes
#6
Gustav Jarl
Foot ulcers are a diabetic complication associated with significant morbidity, mortality, and amputation risk. Offloading devices prevent and heal foot ulcers, but adherence to using these devices is low. The reasons for nonadherence are unclear, and study results are difficult to compare due to methodological heterogeneity. This paper explores aspects of investigating adherence to using offloading devices among people with diabetes and provides recommendations for future studies, focusing on study designs, definitions of adherence, measurement methods, and conceptual frameworks...
2018: Patient Preference and Adherence
https://www.readbyqxmd.com/read/30249472/comparison-of-drop-jump-landing-biomechanics-and-asymmetry-among-adolescents-with-hamstring-patellar-and-quadriceps-tendon-autografts-for-anterior-cruciate-ligament-reconstruction
#7
Nicole M Mueske, Curtis D VandenBerg, J Lee Pace, Mia J Katzel, Tracy L Zaslow, Ricardo A Padilla, Tishya A L Wren
BACKGROUND: Adolescent anterior cruciate ligament reconstruction (ACLR) commonly utilizes hamstring (HT), patellar (PT) or quadriceps (QT) tendon autografts, but consensus is lacking regarding optimal graft choice. This study compared landing biomechanics and asymmetries among ACLR patients with HT, PT and QT grafts and uninjured controls. METHODS: This retrospective study included 61 adolescents with unilateral ACLR (27 HT, 20 PT, 14 QT; four to 12 months post-surgery, mean 6...
September 21, 2018: Knee
https://www.readbyqxmd.com/read/30249043/a-secure-multi-tier-mobile-edge-computing-model-for-data-processing-offloading-based-on-degree-of-trust
#8
Francisco José Mora-Gimeno, Higinio Mora-Mora, Diego Marcos-Jorquera, Bruno Volckaert
Current mobile devices need to run applications with high computational demands and critical response times. The mobile edge computing (MEC) paradigm was developed to improve the performance of these devices. This new computation architecture allows for the mobile devices to execute applications on fog nodes at the network edge; this process is called data processing offloading. This article presents a security model for the externalization of application execution in multi-tier MEC environments. The principal novelty of this study is that the model is able to modify the required security level in each tier of the distributed architecture as a function of the degree of trust associated with that tier...
September 23, 2018: Sensors
https://www.readbyqxmd.com/read/30227685/energy-efficient-online-resource-management-and-allocation-optimization-in-multi-user-multi-task-mobile-edge-computing-systems-with-hybrid-energy-harvesting
#9
Heng Zhang, Zhigang Chen, Jia Wu, Yiqing Deng, Yutong Xiao, Kanghuai Liu, Mingxuan Li
Mobile Edge Computing (MEC) has evolved into a promising technology that can relieve computing pressure on wireless devices (WDs) in the Internet of Things (IoT) by offloading computation tasks to the MEC server. Resource management and allocation are challenging because of the unpredictability of task arrival, wireless channel status and energy consumption. To address such a challenge, in this paper, we provide an energy-efficient joint resource management and allocation (ECM-RMA) policy to reduce time-averaged energy consumption in a multi-user multi-task MEC system with hybrid energy harvested WDs...
September 17, 2018: Sensors
https://www.readbyqxmd.com/read/30212375/insulated-offloading-provides-offloading-protection-and-enhanced-skin-perfusion
#10
Charles A Andersen, Mario Ponticello, Nicole Byerley, Valerie Marmolejo
INTRODUCTION: Locally and neurally mediated vasodilation of the cutaneous vasculature has been shown to occur in response to locally and systemically applied heat stresses. The resultant shunting of blood to the periphery can be upwards of 7 L/min to 8 L/min when profound heat stresses are applied. The increased cutaneous circulation from local heat stress may benefit extremities afflicted with a wound or area of compromised arterial supply. Insulating the extremity also may increase local cutaneous perfusion...
August 16, 2018: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/30184032/ebstein-s-anomaly-the-one-and-a-half-ventricle-heart
#11
Amber Malhotra, Vishal Agrawal, Kartik Patel, Mausam Shah, Kamal Sharma, Pranav Sharma, Sumbul Siddiqui, Nilesh Oswal, Himani Pandya
OBJECTIVE: Ebstein's anomaly remains a relatively ignored disease. Lying in the 'No Man's land' between congenital and valve surgeons, it largely remains inadequately studied. We report our short-term results of treating it as a 'one and a half ventricle heart' and propose that the true tricuspid annulus (TTA) 'Z' score be used as an objective criterion for estimation of 'functional' right ventricle (RV). METHODS: 22 consecutive patients undergoing surgery for Ebstein's anomaly were studied...
July 2018: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/30169972/using-tools-to-help-us-think-actual-but-also-believed-reliability-modulates-cognitive-offloading
#12
Patrick P Weis, Eva Wiese
OBJECTIVE: A distributed cognitive system is a system in which cognitive processes are distributed between brain-based internal and environment-based external resources. In the current experiment, we examined the influence of metacognitive processes on external resource use (i.e., cognitive offloading) in such systems. BACKGROUND: High-tech working environments oftentimes represent distributed cognitive systems. Because cognitive offloading can both support and harm performance, depending on the specific circumstances, it is essential to understand when and why people offload their cognition...
August 31, 2018: Human Factors
https://www.readbyqxmd.com/read/30169499/has-your-smartphone-replaced-your-brain-construction-and-validation-of-the-extended-mind-questionnaire-xmq
#13
Sari R R Nijssen, Gabi Schaap, Geert P Verheijen
As digital devices, such as smartphones, are becoming ever more absorbed in the daily lives of adolescents, a major assumption is that they start taking over basic functions of the human mind. A main focus of current debate and research is therefore on investigating adolescents' use of digital technologies. However, the lack of an instrument measuring the degree to which adolescents offload cognitive and social functions to technology hinders debate and research. This paper tests the reliability and validity of the Extended Mind Questionnaire (XMQ) which measures the degree to which digital technology is used to offload cognitive and social functions...
2018: PloS One
https://www.readbyqxmd.com/read/30136445/a-confirmatory-study-on-the-efficacy-of-dehydrated-human-amnion-chorion-membrane-dhacm-allograft-in-the-management-of-diabetic-foot-ulcers-a-prospective-multicentre-randomised-controlled-study-of-110-patients-from-14-wound-clinics
#14
William Tettelbach, Shawn Cazzell, Alexander M Reyzelman, Felix Sigal, Joseph M Caporusso, Patrick S Agnew
A randomised, controlled multicentre clinical trial was conducted at 14 wound care centres in the United States to confirm the efficacy of dehydrated human amnion/chorion membrane allograft (dHACM) for the treatment of chronic lower extremity ulcers in persons with diabetes. Patients with a lower extremity ulcer of at least 4 weeks duration were entered into a 2-week study run-in phase and treated with alginate wound dressings and appropriate offloading. Those with less than or equal to 25% wound closure after run-in were randomly assigned to receive weekly dHACM application in addition to offloading or standard of care with alginate wound dressings, for 12 weeks...
August 22, 2018: International Wound Journal
https://www.readbyqxmd.com/read/30112582/updates-on-diabetic-foot-and-charcot-osteopathic-arthropathy
#15
REVIEW
Brian M Schmidt, Crystal M Holmes
PURPOSE OF REVIEW: Diabetes mellitus affects approximately 30.8 million people currently living in the USA. Chronic diabetes complications, including diabetic foot complications, remain prevalent and challenging to treat. We review clinical diagnosis and challenges providers may encounter when managing diabetic foot ulcers and Charcot neuroarthropathy. RECENT FINDINGS: Mechanisms controlling these diseases are being elucidated and not fully understood. Offloading is paramount to heal and manage diabetic foot ulcers and Charcot neuroarthropathy...
August 15, 2018: Current Diabetes Reports
https://www.readbyqxmd.com/read/30090832/propagation-of-syndesmotic-injuries-during-forced-external-rotation-in-flexed-cadaveric-ankles
#16
Alexander Ritz Mait, Jason Lee Forman, Bingbing Nie, John Paul Donlon, Adwait Mane, Ali Reza Forghani, Robert B Anderson, M Truitt Cooper, Richard W Kent
Background: Forced external rotation of the foot is a mechanism of ankle injuries. Clinical observations include combinations of ligament and osseous injuries, with unclear links between causation and injury patterns. By observing the propagation sequence of ankle injuries during controlled experiments, insight necessary to understand risk factors and potential mitigation measures may be gained. Hypothesis: Ankle flexion will alter the propagation sequence of ankle injuries during forced external rotation of the foot...
June 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/30079147/role-of-bisphosphonates-in-the-management-of-acute-charcot-foot
#17
REVIEW
Harsh Durgia, Jayaprakash Sahoo, Sadishkumar Kamalanathan, Rajan Palui, Kalyani Sridharan, Henith Raj
Diabetes mellitus is the most common cause of Charcot neuropathy affecting foot and ankle. Acute Charcot foot (CF) presents with a red and swollen foot in contrast to the painless deformed one of chronic CF. Enhanced osteoclastogenesis plays a central role in the pathogenesis of acute CF. Many studies have shown elevated levels of bone turnover markers in patients with acute CF confirming it. These findings have led clinicians to use anti-resorptive agents [bisphosphonates (BP), calcitonin, and denosumab] along with immobilization and offloading in acute CF patients...
July 15, 2018: World Journal of Diabetes
https://www.readbyqxmd.com/read/30071654/adaptive-computing-optimization-in-software-defined-network-based-industrial-internet-of-things-with-fog-computing
#18
Juan Wang, Di Li
In recent years, cloud computing and fog computing have appeared one after the other, as promising technologies for augmenting the computing capability of devices locally. By offloading computational tasks to fog servers or cloud servers, the time for task processing decreases greatly. Thus, to guarantee the Quality of Service (QoS) of smart manufacturing systems, fog servers are deployed at network edge to provide fog computing services. In this paper, we study the following problems in a mixed computing system: (1) which computing mode should be chosen for a task in local computing, fog computing or cloud computing? (2) In the fog computing mode, what is the execution sequence for the tasks cached in a task queue? Thus, to solve the problems above, we design a Software-Defined Network (SDN) framework in a smart factory based on an Industrial Internet of Things (IIoT) system...
August 1, 2018: Sensors
https://www.readbyqxmd.com/read/30046025/a-distributed-and-context-aware-task-assignment-mechanism-for-collaborative-mobile-edge-computing
#19
Bo Gu, Yapeng Chen, Haijun Liao, Zhenyu Zhou, Di Zhang
Mobile edge computing (MEC) is an emerging technology that leverages computing, storage, and network resources deployed at the proximity of users to offload their delay-sensitive tasks. Various existing facilities including mobile devices with idle resources, vehicles, and MEC servers deployed at base stations or road side units, could act as edges in the network. Since task offloading incurs extra transmission energy consumption and transmission latency, two key questions to be addressed in such an environment are (i) should the workload be offloaded to the edge or computed in terminals? (ii) Which edge, among the available ones, should the task be offloaded to? In this paper, we formulate the task assignment problem as a one-to-many matching game which is a powerful tool for studying the formation of a mutual beneficial relationship between two sets of agents...
July 25, 2018: Sensors
https://www.readbyqxmd.com/read/30028916/the-gradient-perfusion-model-part-2-substantiation-of-the-gpm-with-clinical-cases
#20
Michael B Strauss, Lientra Q Lu, Stuart S Miller
Introduction: In Part 1 of this three-part series, we provided an explanation as to why and at what sites decompression sickness (DCS) occurs, using the Gradient-Perfusion Model (GPM). In this part, we provide information to substantiate the concept and present clinical cases that were initially labeled as "unexplained DCS," but later disordering events were identified to explain the clinical presentations. Materials and Methods: Among 500 cases of DCS we have managed for over 50 years, a cohort of these patients was initially diagnosed as unexplained DCS...
May 2018: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
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