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https://www.readbyqxmd.com/read/28937632/design-and-analysis-of-a-low-latency-deterministic-network-mac-for-wireless-sensor-networks
#1
Prasan Kumar Sahoo, Sudhir Ranjan Pattanaik, Shih-Lin Wu
The IEEE 802.15.4e standard has four different superframe structures for different applications. Use of a low latency deterministic network (LLDN) superframe for the wireless sensor network is one of them, which can operate in a star topology. In this paper, a new channel access mechanism for IEEE 802.15.4e-based LLDN shared slots is proposed, and analytical models are designed based on this channel access mechanism. A prediction model is designed to estimate the possible number of retransmission slots based on the number of failed transmissions...
September 22, 2017: Sensors
https://www.readbyqxmd.com/read/28937412/evidence-based-practice-and-its-associated-factors-among-medical-laboratory-professionals-in-west-amhara-hospitals-northwest-ethiopia
#2
Meseret A Wassie, Atinkut A Zeleke, Berihun A Dachew, Mihiretu Kebede
BACKGROUND: Healthcare and clinical laboratory practices are constantly evolving, leading a need for evidence-based practice (EBP) among all laboratory professionals. However, EBP among laboratory professionals has not yet been studied in Ethiopia. AIMS: This study aimed to determine EBP and associated factors among medical laboratory professionals in West Amhara hospitals, Northwest Ethiopia. METHODS: An analytic and descriptive cross-sectional study was conducted in West Amhara hospitals from February to March 2014...
September 20, 2017: International Journal of Evidence-based Healthcare
https://www.readbyqxmd.com/read/28937409/development-and-feasibility-of-self-management-application-in-left-ventricular-assist-devices
#3
Jesus M Casida, James E Aikens, Heidi Craddock, Matthew W Aldrich, Francis D Pagani
Despite major advancements in mechanical circulatory support, the self-management (SM) for patients with a left-ventricular assist device (LVAD) remains complex and challenging for patients and their caregivers. We have developed a mobile phone application (VAD Care App) to organize and simplify the LVAD SM process. This article describes the development and feasibility study of the app as an SM tool for LVAD patients and caregivers requiring support from ventricular assist device (VAD) coordinators. The specific aim was to evaluate the app's acceptability and usability and the users' competency...
September 20, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28936840/-germplasm-identification-of-lonicerae-japonicae-flos-by-dna-melt-curve-analysis
#4
Ti-Ying Chen, Chao Jiang, Yuan Yuan, Kang Chen, Jun-Hui Zhou, Yu-Yang Zhao, Lu-Qi Huang
To establish a new high resolution melting analytical method for identification of Lonicera japonica germplasm, the screening of 7 pairs of SSR (simple sequence repeats) primers, determining the suitable diagnostic primers by the differences of peak pattern and Tm was conducted. Then into the DNA template concentration, annealing temperature and the suitable range of cycle number were investigated. Combined with SIMCA-P software for data processing analysis, the results show that three main germplasm honeysuckle could be divided by four sets of primers...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28936638/examining-reproducibility-in-psychology-a-hybrid-method-for-combining-a-statistically-significant-original-study-and-a-replication
#5
Robbie C M van Aert, Marcel A L M van Assen
The unrealistically high rate of positive results within psychology has increased the attention to replication research. However, researchers who conduct a replication and want to statistically combine the results of their replication with a statistically significant original study encounter problems when using traditional meta-analysis techniques. The original study's effect size is most probably overestimated because it is statistically significant, and this bias is not taken into consideration in traditional meta-analysis...
September 21, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28936475/surgical-data-science-the-new-knowledge-domain
#6
S Swaroop Vedula, Gregory D Hager
Healthcare in general, and surgery/interventional care in particular, is evolving through rapid advances in technology and increasing complexity of care with the goal of maximizing quality and value of care. While innovations in diagnostic and therapeutic technologies have driven past improvements in quality of surgical care, future transformation in care will be enabled by data. Conventional methodologies, such as registry studies, are limited in their scope for discovery and research, extent and complexity of data, breadth of analytic techniques, and translation or integration of research findings into patient care...
April 2017: Innov Surg Sci
https://www.readbyqxmd.com/read/28936015/looking-through-a-different-lens-examining-the-inequality-mortality-association-in-u-s-counties-using-spatial-panel-models
#7
Tse-Chuan Yang, Stephen A Matthews, Kiwoong Park
Two areas still need further examination in the ecological study of inequality and mortality. First, the evidence for the relationship between income inequality and mortality remains inconclusive, particularly when the analytic unit is small (e.g., county in the U.S.). Second, most previous studies are cross-sectional and are unable to address the recent diverging patterns whereby mortality has decreased and income inequality increased. This study aims to contribute to both topic areas by studying the relationship between inequality and mortality via a spatiotemporal approach that simultaneously considers the spatial structure and the temporal trends of inequality and mortality using county panel data between 1990 and 2010 for the conterminous U...
September 2017: Applied Geography
https://www.readbyqxmd.com/read/28935360/when-guidelines-conflict-a-case-study-of-mammography-screening-initiation-in-the-1990s
#8
Mireille Jacobson, Srikanth Kadiyala
BACKGROUND: Cancer screening guidelines communicate important information to patients and physicians regarding the costs and benefits of screening. Currently, guideline recommendations from major organizations conflict regarding the age of mammography screening initiation. To understand current and future U.S. mammography screening patterns we study age-mammography patterns from the 1990s, another period of conflicting guideline recommendations. METHODS: We examine mammography use rates by single year of age to understand compliance with guideline-recommended initiation ages in the 1990s...
September 18, 2017: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/28934956/parameters-sensitivity-assessment-and-heat-source-localization-using-infrared-imaging-techniques
#9
Maryam Rastgar-Jazi, Farah Mohammadi
BACKGROUND: At present, infrared (IR) imaging is used both as a non-invasive and a non-ionizing technology. Using an IR camera, it is possible to measure body surface temperature in order to detect tumors and malignant cells. Tumors have a high amount of vasculature and an enhanced metabolism rate, which may result in an increase in body surface temperature by several degrees above its normal level. METHODS: Using thermograms, it is possible to assess various tumor parameters, such as depth, intensity, and radius...
September 21, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28934887/somatosensory-cortex-excitability-changes-due-to-differences-in-instruction-conditions-of-motor-imagery
#10
Takashi Hasegawa, Hironori Miyata, Keita Nishi, Akira Sagari, Takefumi Moriuchi, Takashi Matsuo, Takayuki Tabira, Toshio Higashi
Purpose Vivid motor imagery appears to be associated with improved motor learning efficiency. However, the practical difficulties in measuring vivid motor imagery warrant new analytical approaches. The present study aimed to determine the instruction conditions for which vividness in motor imagery could be more easily seen and the excitability of the sensory cortex as it relates to the motor image. Materials and methods In total, 15 healthy, right-handed volunteers were instructed to imagine grasping a rubber ball under a verbal-only instruction condition (verbal condition), a verbal + visual instruction condition (visual condition), and a verbal + execution (physically grasping a real ball) condition (execution condition)...
September 21, 2017: Somatosensory & Motor Research
https://www.readbyqxmd.com/read/28934529/traveling-slow-oscillations-during-sleep-a-marker-of-brain-connectivity-in-childhood
#11
Salome Kurth, Brady A Riedner, Douglas C Dean, Jonathan O'Muircheartaigh, Reto Huber, Oskar G Jenni, Sean C L Deoni, Monique K LeBourgeois
Slow oscillations, a defining characteristic of the nonrapid eye movement sleep electroencephalogram (EEG), proliferate across the scalp in highly reproducible patterns. In adults, the propagation of slow oscillations is a recognized fingerprint of brain connectivity and excitability. In this study, we (1) describe for the first time maturational features of sleep slow oscillation propagation in children (n = 23; 2-13 years) using high-density (hd) EEG and (2) examine associations between sleep slow oscillatory propagation characteristics (ie, distance, traveling speed, cortical involvement) and white matter myelin microstructure as measured with multicomponent Driven Equilibrium Single Pulse Observation of T1 and T2-magnetic resonance imaging (mcDESPOT-MRI)...
September 1, 2017: Sleep
https://www.readbyqxmd.com/read/28934418/systems-biotechnology-for-protein-production-in-pichia-pastoris
#12
Richard J Zahrl, David A Peña, Diethard Mattanovich, Brigitte Gasser
The methylotrophic yeast Pichia pastoris (syn. Komagataella spp.) is one of the most important production systems for heterologous proteins. After the first genome sequences were published in 2009, tremendous effort was made to establish systems-level analytical methods. Methylotrophic lifestyle was one of the most thoroughly investigated topics, studied at the levels of transcriptome, proteome and metabolic flux. Also the responses of P. pastoris to environmental stress conditions experienced during high cell density production processes were studied...
November 1, 2017: FEMS Yeast Research
https://www.readbyqxmd.com/read/28934352/global-reaction-to-the-recent-outbreaks-of-zika-virus-insights-from-a-big-data-analysis
#13
Nicola Luigi Bragazzi, Cristiano Alicino, Cecilia Trucchi, Chiara Paganino, Ilaria Barberis, Mariano Martini, Laura Sticchi, Eugen Trinka, Francesco Brigo, Filippo Ansaldi, Giancarlo Icardi, Andrea Orsi
OBJECTIVE: The recent spreading of Zika virus represents an emerging global health threat. As such, it is attracting public interest worldwide, generating a great amount of related Internet searches and social media interactions. The aim of this research was to understand Zika-related digital behavior throughout the epidemic spreading and to assess its consistence with real-world epidemiological data, using a behavioral informatics and analytics approach. METHODS: In this study, the global web-interest and reaction to the recently occurred outbreaks of the Zika Virus were analyzed in terms of tweets and Google Trends (GT), Google News, YouTube, and Wikipedia search queries...
2017: PloS One
https://www.readbyqxmd.com/read/28934151/natural-history-of-hpv-infection-across-the-lifespan-role-of-viral-latency
#14
REVIEW
Patti E Gravitt, Rachel L Winer
Large-scale epidemiologic studies have been invaluable for elaboration of the causal relationship between persistent detection of genital human papillomavirus (HPV) infection and the development of invasive cervical cancer. However, these studies provide limited data to adequately inform models of the individual-level natural history of HPV infection over the course of a lifetime, and particularly ignore the biological distinction between HPV-negative tests and lack of infection (i.e., the possibility of latent, undetectable HPV infection)...
September 21, 2017: Viruses
https://www.readbyqxmd.com/read/28933942/enhancing-transparency-and-control-when-drawing-data-driven-inferences-about-individuals
#15
Daizhuo Chen, Samuel P Fraiberger, Robert Moakler, Foster Provost
Recent studies show the remarkable power of fine-grained information disclosed by users on social network sites to infer users' personal characteristics via predictive modeling. Similar fine-grained data are being used successfully in other commercial applications. In response, attention is turning increasingly to the transparency that organizations provide to users as to what inferences are drawn and why, as well as to what sort of control users can be given over inferences that are drawn about them. In this article, we focus on inferences about personal characteristics based on information disclosed by users' online actions...
September 2017: Big Data
https://www.readbyqxmd.com/read/28933889/codevelopment-of-well-being-and-self-esteem-in-romantic-partners-disentangling-the-effects-of-mutual-influence-and-shared-environment
#16
Ulrich Orth, Ruth Yasemin Erol, Thomas Ledermann, Alexander Grob
Common sense suggests that romantic partners tend to be interdependent in their well-being and self-esteem. The authors tested the degree to which codevelopment in romantic partners (i.e., development in similar directions) is due to mutual influence between partners or due to the effects of shared environment, using longitudinal data from 5 samples of couples (N = 4,116 participants). The samples included dating, cohabiting, and married couples, with a broad age range covering young adulthood to old age. The authors used a longitudinal version of the actor-partner interdependence model and examined measures of well-being (life satisfaction, positive affect, negative affect, and depression) and self-esteem...
September 21, 2017: Developmental Psychology
https://www.readbyqxmd.com/read/28933675/using-the-concept-of-hubots-to-understand-the-work-entailed-in-using-digital-technologies-in-healthcare
#17
Catherine Pope, Joanne Turnbull
Purpose The purpose of this paper is to explore the human work entailed in the deployment of digital health care technology. It draws on imagined configurations of computers and machines in fiction and social science to think about the relationship between technology and people, and why this makes implementation of digital technology so difficult. The term hubots is employed as a metaphorical device to examine how machines and humans come together to do the work of healthcare. Design/methodology/approach This paper uses the fictional depiction of hubots to reconceptualise the deployment of a particular technology - a computer decision support system (CDSS) used in emergency and urgent care services...
August 21, 2017: Journal of Health Organization and Management
https://www.readbyqxmd.com/read/28933348/the-multi-resolution-capability-of-tchebichef-moments-and-its-applications-to-the-analysis-of-fluorescence-excitation-emission-spectra
#18
Baoqiong Li, Xue Wang, Min Li Xu, Hong Lin Zhai, Jing Chen, Jin Jin Liu
Fluorescence spectroscopy with excitation-emission matrix (EEM) is a fast and inexpensive technique and has been applied to the detection of a very wide range of analytes. However, the serious scatterings and overlapping signals hinder the applications of EEM spectra. In this contribution, the multi-resolution capability of Tchebichef moments was investigated deeply and applied to the analysis of two EEM data sets (data set 1 consisted of Valine-tyrosine-Valine, Tryptophan-Glycine and Phenylalanine, and data set 2 included Vitamin B1, Vitamin B2 and Vitamin B6) for the first time...
September 21, 2017: Methods and Applications in Fluorescence
https://www.readbyqxmd.com/read/28932998/msireader-v1-0-evolving-open-source-mass-spectrometry-imaging-software-for-targeted-and-untargeted-analyses
#19
Mark T Bokhart, Milad Nazari, Kenneth P Garrard, David C Muddiman
A major update to the mass spectrometry imaging (MSI) software MSiReader is presented, offering a multitude of newly added features critical to MSI analyses. MSiReader is a free, open-source, and vendor-neutral software written in the MATLAB platform and is capable of analyzing most common MSI data formats. A standalone version of the software, which does not require a MATLAB license, is also distributed. The newly incorporated data analysis features expand the utility of MSiReader beyond simple visualization of molecular distributions...
September 20, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28932891/identification-of-terpenes-and-essential-oils-by-means-of-static-headspace-gas-chromatography-ion-mobility-spectrometry
#20
Roman Rodríguez-Maecker, Eduardo Vyhmeister, Stefan Meisen, Antonio Rosales Martinez, Andriy Kuklya, Ursula Telgheder
Static headspace gas chromatography-ion mobility spectrometry (SHS GC-IMS) is a relatively new analytical technique that has considerable potential for analysis of volatile organic compounds (VOCs). In this study, SHS GC-IMS was used for the identification of the major terpene components of various essential oils (EOs). Based on the data obtained from 25 terpene standards and 50 EOs, a database for fingerprint identification of characteristic terpenes and EOs was generated utilizing SHS GC-IMS for authenticity testing of fragrances in foods, cosmetics, and personal care products...
September 20, 2017: Analytical and Bioanalytical Chemistry
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