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https://www.readbyqxmd.com/read/28437962/rapidly-reconfigurable-high-fidelity-optical-arbitrary-waveform-generation-in-heterogeneous-photonic-integrated-circuits
#1
Shaoqi Feng, Chuan Qin, Kuanping Shang, Shibnath Pathak, Weicheng Lai, Binbin Guan, Matthew Clements, Tiehui Su, Guangyao Liu, Hongbo Lu, Ryan P Scott, S J Ben Yoo
This paper demonstrates rapidly reconfigurable, high-fidelity optical arbitrary waveform generation (OAWG) in a heterogeneous photonic integrated circuit (PIC). The heterogeneous PIC combines advantages of high-speed indium phosphide (InP) modulators and low-loss, high-contrast silicon nitride (Si<sub>3</sub>N<sub>4</sub>) arrayed waveguide gratings (AWGs) so that high-fidelity optical waveform syntheses with rapid waveform updates are possible. The generated optical waveforms spanned a 160 GHz spectral bandwidth starting from an optical frequency comb consisting of eight comb lines separated by 20 GHz channel spacing...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437836/nurses-attitudes-toward-the-single-checking-of-medications
#2
Rachel Cross, Paul N Bennett, Cherene Ockerby, Wei Chun Wang, Judy Currey
BACKGROUND AND AIM: The policy of single over double checking of medications has been adopted by many health services; however, nurses' attitudes toward single-checking medications remains unclear. The aim of this study was to explore the attitudes of nurses who single check and administer medications in a setting where single checking has been in place for over a decade. METHODS: A cross-sectional survey design using the validated Single Checking Administration Medication Scale-II to registered nurses (n = 299) working in one metropolitan teaching hospital in Victoria, Australia...
April 24, 2017: Worldviews on Evidence-based Nursing
https://www.readbyqxmd.com/read/28437803/prevalence-of-helicobacter-pylori-infection-among-blood-donors-in-saxony-anhalt-germany-a-region-at-intermediate-risk-for-gastric-cancer
#3
Caspar Franck, Armin Hoffmann, Alexander Link, Christian Schulz, Kerstin Wuttig, Elke Becker, Marcell Heim, Marino Venerito, Peter Malfertheiner
Background In the federal state of Saxony-Anhalt, gastric cancer (GC) incidence ranks among the highest in Germany. Helicobacter pylori prevalence is a surrogate marker for GC risk in a given population. In 2010 we reported an H. pylori seroprevalence of 44.4 % in patients at the emergency ward of the University Hospital of Magdeburg, the capital of Saxony-Anhalt. Our aim is to update these findings in a cohort of healthy blood donors from the same region. Materials and methods The sera of 516 consecutive blood donors (40...
April 24, 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28437721/optimizing-follow-up-and-study-retention-in-the-21st-century-advances-from-the-front-line-in-alcohol-and-tobacco-research
#4
Lia J Smith, Patrick J McNamara, Andrea C King
AIMS: Longitudinal studies are integral in addiction research but retention of participants over time can be challenging. While statistical algorithms for missing data have advanced, they remain less desirable than collecting actual data with high retention rates. An update to methodological primers with consideration of evolving technology and privacy concerns is needed for 21st century researchers. METHODS: Comprehensive follow-up methodological strategies were conducted in four concurrent laboratory- and intervention-based studies across N=697 drinker and smokers enrolled in studies at the Clinical Addictions Research Laboratory at the University of Chicago...
April 15, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28437620/american-association-of-clinical-endocrinologists-and-american-college-of-endocrinology-guidelines-for-management-of-dyslipidemia-and-prevention-of-cardiovascular-disease
#5
Paul S Jellinger, Yehuda Handelsman, Paul D Rosenblit, Zachary T Bloomgarden, Vivian A Fonseca, Alan J Garber, George Grunberger, Chris K Guerin, David S H Bell, Jeffrey I Mechanick, Rachel Pessah-Pollack, Kathleen Wyne, Donald Smith, Eliot A Brinton, Sergio Fazio, Michael Davidson
OBJECTIVE: The development of these guidelines is mandated by the American Association of Clinical Endocrinologists (AACE) Board of Directors and American College of Endocrinology (ACE) Board of Trustees and adheres with published AACE protocols for the standardized production of clinical practice guidelines (CPGs). METHODS: Recommendations are based on diligent reviews of the clinical evidence with transparent incorporation of subjective factors, according to established AACE/ACE guidelines for guidelines protocols...
April 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28437306/breast-feeding-analgesia-in-infants-an-update-on-the-current-state-of-evidence
#6
(no author information available yet)
No abstract text is available yet for this article.
April 2017: Journal of Perinatal & Neonatal Nursing
https://www.readbyqxmd.com/read/28437305/breast-feeding-analgesia-in-infants-an-update-on-the-current-state-of-evidence
#7
Britney Benoit, Ruth Martin-Misener, Margot Latimer, Marsha Campbell-Yeo
To provide an updated synthesis of the current state of the evidence for the effectiveness of breast-feeding and expressed breast milk feeding in reducing procedural pain in preterm and full-term born infants. A systematic search of key electronic databases (PubMed, CINAHL, EMBASE) was completed. Of the 1032 abstracts screened, 21 were found eligible for inclusion. Fifteen studies reported on the use of breast-feeding or expressed breast milk in full-term infants and 6 reported on preterm infants. Direct breast-feeding was more effective than maternal holding, maternal skin-to-skin contact, topical anesthetics, and music therapy, and was as or more effective than sweet tasting solutions in full-term infants...
April 2017: Journal of Perinatal & Neonatal Nursing
https://www.readbyqxmd.com/read/28437162/adjuvant-systemic-therapy-and-adjuvant-radiation-therapy-for-stage-i-to-iiia-completely-resected-non-small-cell-lung-cancers-american-society-of-clinical-oncology-cancer-care-ontario-clinical-practice-guideline-update
#8
Mark G Kris, Laurie E Gaspar, Jamie E Chaft, Erin B Kennedy, Christopher G Azzoli, Peter M Ellis, Steven H Lin, Harvey I Pass, Rahul Seth, Frances A Shepherd, David R Spigel, John R Strawn, Yee C Ung, Michael Weyant
Purpose The panel updated the American Society of Clinical Oncology (ASCO) adjuvant therapy guideline for resected non-small-cell lung cancers. Methods ASCO convened an update panel and conducted a systematic review of the literature, investigating adjuvant therapy in resected non-small-cell lung cancers. Results The updated evidence base covered questions related to adjuvant systemic therapy and included a systematic review conducted by Cancer Care Ontario current to January 2016. A recent American Society for Radiation Oncology guideline and systematic review, previously endorsed by ASCO, was used as the basis for recommendations for adjuvant radiation therapy...
April 24, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28437132/home-enteral-nutrition-updates-trends-and-challenges
#9
Karen Martin, Gabriela Gardner
The true prevalence of home enteral nutrition (HEN) utilization is unclear and requires further study. HEN therapy has remained virtually unchanged for several decades. However, new trends in HEN are evolving; enteral nutrition is undergoing changes ranging from enteral feeding devices, ingredients used, practice innovations, and challenges with reimbursement. A 2006 Joint Commission call to action that reported 2 sentinel events related to misconnections set things into motion for the transition of enteral device connectors to become specific for enteral nutrition use, which will affect patients who receive HEN...
April 1, 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28436999/clinical-practice-guidelines-on-the-evidence-based-use-of-integrative-therapies-during-and-after-breast-cancer-treatment
#10
REVIEW
Heather Greenlee, Melissa J DuPont-Reyes, Lynda G Balneaves, Linda E Carlson, Misha R Cohen, Gary Deng, Jillian A Johnson, Matthew Mumber, Dugald Seely, Suzanna M Zick, Lindsay M Boyce, Debu Tripathy
Answer questions and earn CME/CNE Patients with breast cancer commonly use complementary and integrative therapies as supportive care during cancer treatment and to manage treatment-related side effects. However, evidence supporting the use of such therapies in the oncology setting is limited. This report provides updated clinical practice guidelines from the Society for Integrative Oncology on the use of integrative therapies for specific clinical indications during and after breast cancer treatment, including anxiety/stress, depression/mood disorders, fatigue, quality of life/physical functioning, chemotherapy-induced nausea and vomiting, lymphedema, chemotherapy-induced peripheral neuropathy, pain, and sleep disturbance...
April 24, 2017: CA: a Cancer Journal for Clinicians
https://www.readbyqxmd.com/read/28436917/fault-estimation-observer-design-for-discrete-time-takagi-sugeno-fuzzy-systems-based-on-homogenous-polynomially-parameter-dependent-lyapunov-functions
#11
Xiangpeng Xie, Dong Yue, Huaguang Zhang, Yusheng Xue
This paper investigates the problem of robust fault estimation (FE) observer design for discrete-time Takagi-Sugeno fuzzy systems via homogenous polynomially parameter-dependent Lyapunov functions. First, a novel framework of the fuzzy FE observer is established with the help of a maximum-minimum-priority-based switching mechanism. Then, for every activated switching case, a targeted result is achieved by the aid of exploring an important property of improved homogenous polynomials. Since the helpful information of the underlying system can be duly updated and effectively utilized at every sampled point, the conservatism of previous results is availably reduced...
April 24, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28436898/extended-polynomial-growth-transforms-for-design-and-training-of-generalized-support-vector-machines
#12
Ahana Gangopadhyay, Oindrila Chatterjee, Shantanu Chakrabartty
Growth transformations constitute a class of fixed-point multiplicative update algorithms that were originally proposed for optimizing polynomial and rational functions over a domain of probability measures. In this paper, we extend this framework to the domain of bounded real variables which can be applied towards optimizing the dual cost function of a generic support vector machine (SVM). The approach can, therefore, not only be used to train traditional soft-margin binary SVMs, one-class SVMs, and probabilistic SVMs but can also be used to design novel variants of SVMs with different types of convex and quasi-convex loss functions...
April 17, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28436896/online-hashing
#13
Long-Kai Huang, Qiang Yang, Wei-Shi Zheng
Although hash function learning algorithms have achieved great success in recent years, most existing hash models are off-line, which are not suitable for processing sequential or online data. To address this problem, this paper proposes an online hash model to accommodate data coming in stream for online learning. Specifically, a new loss function is proposed to measure the similarity loss between a pair of data samples in hamming space. Then, a structured hash model is derived and optimized in a passive-aggressive way...
April 24, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28436895/online-learning-algorithm-based-on-adaptive-control-theory
#14
Jian-Wei Liu, Jia-Jia Zhou, Mohamed S Kamel, Xiong-Lin Luo
This paper proposes a new online learning algorithm which is based on adaptive control (AC) theory, thus, we call this proposed algorithm as AC algorithm. Comparing to the gradient descent (GD) and exponential gradient (EG) algorithm which have been applied to online prediction problems, we find a new form of AC theory for online prediction problems and investigate two key questions: how to get a new update law which has a tighter upper bound on the error than the square loss? How to compare the upper bound for accumulated losses for the three algorithms? We obtain a new update law which fully utilizes model reference AC theory...
April 18, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28436866/universal-multimode-background-subtraction
#15
Hasan Sajid, Sen-Ching Samson Cheung
In this paper, we present a complete change detection system named Multimode Background Subtraction (MBS). The universal nature of system allows it to robustly handle multitude of challenges associated with video change detection such as illumination changes, dynamic background, camera jitter, moving camera etc. The system comprises of multiple innovative mechanisms in background modeling, model update, pixel classification and the use of multiple color spaces. The system first creates multiple background models of the scene followed by an initial foreground/background probability estimation for each pixel...
April 19, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28436840/a-parametric-computational-model-of-the-action-potential-of-pacemaker-cells
#16
Weiwei Ai, Nitish Patel, Partha Roop, Avinash Malik, Sidharta Andalam, Eugene Yip, Nathan Allen, Mark Trew
OBJECTIVE: A flexible, efficient and verifiable pacemaker cell model is essential to the design of real-time virtual hearts that can be used for closed-loop validation of cardiac devices. A new parametric model of pacemaker action potential is developed to address this need. METHODS: The action potential phases are modeled using hybrid automaton (HA) with one piecewise-linear continuous variable. The model can capture ratedependent dynamics, such as action potential duration (APD) restitution, conduction velocity (CV) restitution, and overdrive suppression by incorporating non-linear update functions...
April 24, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28436642/the-validity-of-race-and-hispanic-origin-reporting-on-death-certificates-in-the-united-states-an-update
#17
Elizabeth Arias, Melonie Heron, Jahn Hakes
Objectives This report presents the findings of an updated study of the validity of race and Hispanic-origin reporting on death certificates in the United States, and its impact on race- and Hispanic origin-specific death rates. Methods The latest version of the National Longitudinal Mortality Study (NLMS) was used to evaluate the classification of race and Hispanic origin on death certificates for deaths occurring in 1999–2011 to decedents in NLMS. To evaluate change over time, these results were compared with those of a study based on an earlier version of NLMS that evaluated the quality of race and ethnicity classification on death certificates for 1979–1989 and 1990–1998...
August 1, 2016: Vital and Health Statistics. Series 2, Data Evaluation and Methods Research
https://www.readbyqxmd.com/read/28436583/physical-activity-and-exercise-for-chronic-pain-in-adults-an-overview-of-cochrane-reviews
#18
REVIEW
Louise J Geneen, R Andrew Moore, Clare Clarke, Denis Martin, Lesley A Colvin, Blair H Smith
BACKGROUND: Chronic pain is defined as pain lasting beyond normal tissue healing time, generally taken to be 12 weeks. It contributes to disability, anxiety, depression, sleep disturbances, poor quality of life, and healthcare costs. Chronic pain has a weighted mean prevalence in adults of 20%.For many years, the treatment choice for chronic pain included recommendations for rest and inactivity. However, exercise may have specific benefits in reducing the severity of chronic pain, as well as more general benefits associated with improved overall physical and mental health, and physical functioning...
April 24, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28436376/carpal-tunnel-syndrome-symptoms-causes-and-treatment-options-literature-reviev
#19
Radoslav Zamborsky, Milan Kokavec, Lukas Simko, Martin Bohac
Carpal Tunnel Syndrome (CTS) is the most common form of entrapment neuropathy. Several authors have investigated the anatomical and pathophysiological features of CTS and have identified several parameters that, in combination, play a significant role in its pathophysiology. Advancement in biological research on CTS has enabled the advent of efficient diagnostic techniques such as provocative tests and nerve conduction studies. Sophisticated technologies, such as magnetic resonance imaging (MRI) and ultrasonography (US), have facilitated the diagnosis of CTS...
January 26, 2017: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28436346/development-of-health-technology-assessment-in-romania
#20
Silvia Gabriela Scintee, Marius Ciutan
OBJECTIVES: The aim of this study was to describe and analyze the introduction of health technology (HTA) in Romania. METHODS: Based on a review of the literature and legislative documents and personal experiences and observations, the authors describe, evaluate, and explain the background and evolution of the HTA system. RESULTS: Initiatives to introduce HTA in Romania date from the early 1990s, but real steps were taken only in 2012 when the European Union Directive 2011/24/ on the application of patients' rights in cross-border health care had to be passed into Romanian law...
April 24, 2017: International Journal of Technology Assessment in Health Care
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