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Validity concepts performance

Mark R Stöhr, Raphael W Majeed, Andreas Günther
The German Center for Lung Research (DZL) is a research network with the aim of researching respiratory diseases. The participating study sites' register data differs in terms of software and coding system as well as data field coverage. To perform meaningful consortium-wide queries through one single interface, a uniform conceptual structure is required covering the DZL common data elements. No single existing terminology includes all our concepts. Potential candidates such as LOINC and SNOMED only cover specific subject areas or are not granular enough for our needs...
2018: Studies in Health Technology and Informatics
Kazuhiro Yasuda, Kenta Saichi, Naomi Kaibuki, Hiroaki Harashima, Hiroyasu Iwata
BACKGROUND: Most individuals have sensory disturbances post stroke, and these deficits contribute to post-stroke balance impairment. The haptic-based biofeedback (BF) system appears to be one of the promising tools for balance rehabilitation in patients with stroke, and the BF system can increase the objectivity of feedback and encouragement than that provided by a therapist. RESEARCH QUESTION: Studies in skill science indicated that feedback or encouragement from a coach or trainer enhances motor learning effect...
April 14, 2018: Gait & Posture
Jamie Ward, Alberta Ipser, Eva Phanvanova, Paris Brown, Iris Bunte, Julia Simner
People with sequence-space synaesthesia visualize sequential concepts such as numbers and time as an ordered pattern extending through space. Unlike other types of synaesthesia, there is no generally agreed objective method for diagnosing this variant or separating it from potentially related aspects of cognition. We use a recently-developed spatial consistency test together with a novel questionnaire on naïve samples and estimate the prevalence of sequence-space synaesthesia to be around 8.1% (Study 1) to 12...
April 16, 2018: Consciousness and Cognition
Bartosz Jachimczyk, Damian Dziak, Jacek Czapla, Pawel Damps, Wlodek J Kulesza
The assessment of skills is essential and desirable in areas such as medicine, security, and other professions where mental, physical, and manual skills are crucial. However, often such assessments are performed by people called “experts” who may be subjective and are able to consider a limited number of factors and indicators. This article addresses the problem of the objective assessment of driving style independent of circumstances. The proposed objective assessment of driving style is based on eight indicators, which are associated with the vehicle’s speed, acceleration, jerk, engine rotational speed and driving time...
April 17, 2018: Sensors
Maxime Huet, Myriam Cubizolles, Arnaud Buhot
Pre-transfusion bedside compatibility test is mandatory to check that the donor and the recipient present compatible groups before any transfusion is performed. Although blood typing devices are present on the market, they still suffer from various drawbacks, like results that are based on naked-eye observation or difficulties in blood handling and process automation. In this study, we addressed the development of a red blood cells (RBC) agglutination assay for point-of-care blood typing. An injection molded microfluidic chip that is designed to enhance capillary flow contained anti-A or anti-B dried reagents inside its microchannel...
April 19, 2018: High-throughput
Jiucheng Xu, Huiyu Mu, Yun Wang, Fangzhou Huang
The selection of feature genes with high recognition ability from the gene expression profiles has gained great significance in biology. However, most of the existing methods have a high time complexity and poor classification performance. Motivated by this, an effective feature selection method, called supervised locally linear embedding and Spearman's rank correlation coefficient (SLLE-SC2 ), is proposed which is based on the concept of locally linear embedding and correlation coefficient algorithms. Supervised locally linear embedding takes into account class label information and improves the classification performance...
2018: Computational and Mathematical Methods in Medicine
Luciana Bjorklund de Lima, Michelle Cardoso E Cardozo, Daniela de Souza Bernardes, Eneida Rejane Rabelo-Silva
PURPOSE: To select and refine the outcomes and indicators of Nursing Outcomes Classification for the diagnosis of risk for perioperative positioning injury. METHOD: Validation study on expert consensus and refinement through pilot study. FINDINGS: Eight outcomes and 35 indicators were selected in consensus. After clinical testing was performed, in which 10 patients were assessed at five different times. Eight outcomes and 33 indicators remained in the protocol...
April 16, 2018: International Journal of Nursing Knowledge
Erika Bassi, Daniela Tartaglini, Alvisa Palese
. Missed nursing care terminologies, theoretical concepts and measurement instruments: a literature review. INTRODUCTION: In the last 15 years the amount of studies on missed nursing care has increased, highlighting the global dimensions of this phenomenon. OBJECTIVE: To identify (a) the terms and the conceptual models currently available; (b) the measurement tools validated in the field of missed care both at the international and at the national levels. METHOD: In December 2017 a literature search was conducted by accessing Cochrane Library, MEDLINE, CINAHL, Scopus and Web of Science databases...
January 2018: Assistenza Infermieristica e Ricerca: AIR
S Leimbach, V Krömker
Because clinical mastitis, one of the most common diseases in dairy cows, is routinely treated with antimicrobial substances, it offers a high potential for future reduction of antimicrobial usage. In fact, intramammary antibiotic administration is not advisable in cases of clinical mastitis caused by coliform bacteria, yeasts, or protothecae or in cases with no detectable mastitis pathogen. To avoid unnecessary treatments with antimicrobials for the benefit of animal health and public welfare, the rapid identification of the mastitis-causing pathogens becomes necessary...
April 11, 2018: Journal of Dairy Science
Barbara Nevicka, Annebel H B De Hoogh, Deanne N Den Hartog, Frank D Belschak
Narcissistic leaders are self-absorbed and hold beliefs of entitlement and superiority. Their aggressive tendencies in the face of criticism and inclinations to validate their self-worth by derogating others may lead others to perceive them as being abusive. Here, we test the relationship between leader narcissism and followers' perceptions of abusive supervision. Drawing upon research related to the behavioral plasticity hypothesis, we propose that followers with low self-esteem will perceive narcissistic leaders as more abusive than those with high self-esteem...
2018: Frontiers in Psychology
Sascha Knauf, Simone Lüert, David Šmajs, Michal Strouhal, Idrissa S Chuma, Sieghard Frischmann, Mohammed Bakheit
We show proof of concept for gene targets (polA, tprL, and TP_0619) that can be used in loop-mediated isothermal amplification (LAMP) assays to rapidly differentiate infection with any of the three Treponema pallidum subspecies (pallidum (TPA), pertenue (TPE), and endemicum (TEN)) and which are known to infect humans and nonhuman primates (NHPs). Four TPA, six human, and two NHP TPE strains, as well as two human TEN strains were used to establish and validate the LAMP assays. All three LAMP assays were highly specific for the target DNA...
April 12, 2018: PLoS Neglected Tropical Diseases
Audrey L Horst, Justin M Rosenbohm, Nikunja Kolluri, Justin Hardick, Charlotte A Gaydos, Mario Cabodi, Catherine M Klapperich, Jacqueline C Linnes
Globally, the microbe Neisseria gonorrhoeae (NG) causes 106 million newly documented sexually transmitted infections each year. Once appropriately diagnosed, NG infections can be readily treated with antibiotics, but high-risk patients often do not return to the clinic for treatment if results are not provided at the point of care. A rapid, sensitive molecular diagnostic would help increase NG treatment and reduce the prevalence of this sexually transmitted disease. Here, we report on the design and development of a rapid, highly sensitive, paperfluidic device for point-of-care diagnosis of NG...
April 11, 2018: Biomedical Microdevices
Mahbobeh Abdolrahimi, Shahrzad Ghiyasvandian, Masoumeh Zakerimoghadam, Abbas Ebadi
Background: Health communication (HC) is considered an important task of nurses to provide high quality and holistic care as well as to improve patient health. The nursing student-patient HC is an abstract concept and needs to be clarified. Therefore, this study was conducted to increase the knowledge about nursing students' HC with patients by considering various participants' viewpoints. Materials and Methods: In this conventional qualitative content analysis, 18 semi-structured interviews were conducted with six nursing students, six nursing instructors, and six patients in educational hospitals affiliated to the University of Medical Sciences...
March 2018: Iranian Journal of Nursing and Midwifery Research
Sarah Willard, Ger Cremers, Yan Ping Man, Erik van Rossum, Marieke Spreeuwenberg, Luc de Witte
BACKGROUND: Recent transitions in long-term care in the Netherlands have major consequences for community-dwelling older adults. A new paradigm expects them to manage and arrange their own care and support as much as possible. Technology can support this shift. A study has been conducted to explore the needs of community-dwelling frail older adults with regard to an online platform. An existing platform was subsequently modified, based upon these needs, resulting in an online community care platform (OCC-platform) comprising of care, health, and communication functions...
April 7, 2018: BMC Geriatrics
Huanying Gu, Zhe He, Duo Wei, Gai Elhanan, Yan Chen
BACKGROUND: The UMLS assigns semantic types to all its integrated concepts. The semantic types are widely used in various natural language processing tasks in the biomedical domain, such as named entity recognition, semantic disambiguation, and semantic annotation. Due to the size of the UMLS, erroneous semantic type assignments are hard to detect. It is imperative to devise automated techniques to identify errors and inconsistencies in semantic type assignments. OBJECTIVES: Designing a methodology to perform programmatic checks to detect semantic type assignment errors for UMLS concepts with one or more SNOMED CT terms and evaluating concepts in a selected set of SNOMED CT hierarchies to verify our hypothesis that UMLS semantic type assignment errors may exist in concepts residing in semantically inconsistent groups...
February 2018: Methods of Information in Medicine
Yo-Hsuan Chuang, Nai-Wei Lo, Cheng-Ying Yang, Ssu-Wei Tang
Modern societies are moving toward an information-oriented environment. To gather and utilize information around people's modern life, tiny devices with all kinds of sensing devices and various sizes of gateways need to be deployed and connected with each other through the Internet or proxy-based wireless sensor networks (WSNs). Within this kind of Internet of Things (IoT) environment, how to authenticate each other between two communicating devices is a fundamental security issue. As a lot of IoT devices are powered by batteries and they need to transmit sensed data periodically, it is necessary for IoT devices to adopt a lightweight authentication protocol to reduce their energy consumption when a device wants to authenticate and transmit data to its targeted peer...
April 5, 2018: Sensors
Badreddine Ratni, Jianjia Yi, Xumin Ding, André de Lustrac, Kuang Zhang, Gérard-Pascal Piau, Shah Nawaz Burokur
A metal-dielectric-metal gradient phase partially reflecting surface based on the combination of a gradient index dielectric substrate with an inductive and a capacitive grids, is designed at microwave frequencies for antenna applications. The gradient index is obtained by realizing air holes of different dimensions in a dielectric host material. A prototype of the gradient index dielectric substrate is fabricated through three-dimensional printing, an additive fabrication technology. It is then associated to two patterned metallic grids to realize a partially reflecting surface with a gradient phase behavior...
March 19, 2018: Optics Express
Thierry Chambert, David S Pilliod, Caren S Goldberg, Hideyuki Doi, Teruhiko Takahara
Environmental DNA (eDNA) analysis of water samples is on the brink of becoming a standard monitoring method for aquatic species. This method has improved detection rates over conventional survey methods and thus has demonstrated effectiveness for estimation of site occupancy and species distribution. The frontier of eDNA applications, however, is to infer species density. Building upon previous studies, we present and assess a modeling approach that aims at inferring animal density from eDNA. The modeling combines eDNA and animal count data from a subset of sites to estimate species density (and associated uncertainties) at other sites where only eDNA data are available...
March 2018: Ecology and Evolution
Philippe Lherminier
We distinguish two types of predations: the predation of matter-energy equals the food chain, and the informative predation is the capture of the information brought by the sexual partners. The cell or parent consumes energy and matter to grow, multiply and produce offspring. A fixed amount of resources is divided by the number of organisms, so individual growth and numerical multiplication are limited by depletion resources of the environment. Inversely, fertilization does not destroy information, but instead produces news...
March 29, 2018: Comptes Rendus Biologies
B H van Duren, K Sugand, R Wescott, R Carrington, A Hart
BACKGROUND: Hip fractures contribute to a significant clinical burden globally with over 1.6 million cases per annum and up to 30% mortality rate within the first year. Insertion of a dynamic hip screw (DHS) is a frequently performed procedure to treat extracapsular neck of femur fractures. Poorly performed DHS fixation of extracapsular neck of femur fractures can result in poor mobilisation, chronic pain, and increased cut-out rate requiring revision surgery. A realistic, affordable, and portable fluoroscopic simulation system can improve performance metrics in trainees, including the tip-apex distance (the only clinically validated outcome), and improve outcomes...
March 29, 2018: Medical Engineering & Physics
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