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Journal articles on the topic 'Welch’s method'

Author: Grafiati

Published: 7 September 2021

Last updated: 10 February 2022

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1

MEADOWS, TOBY. "INFINITARY TABLEAU FOR SEMANTIC TRUTH." Review of Symbolic Logic 8, no. 2 (2015): 207–35. http://dx.doi.org/10.1017/s175502031500012x.

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AbstractWe provide infinitary proof theories for three common semantic theories of truth: strong Kleene, van Fraassen supervaluation and Cantini supervaluation. The value of these systems is that they provide an easy method of proving simple facts about semantic theories. Moreover we shall show that they also give us a simpler understanding of the computational complexity of these definitions and provide a direct proof that the closure ordinal for Kripke’s definition is $\omega _1^{CK}$. This work can be understood as an effort to provide a proof-theoretic counterpart to Welch’s game-theoretic

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Shu, Liang, Zhenming Yu, Zhiquan Wan, and Kun Xu. "Low-complexity storage-reduced digital spectrum-based soft-failure management with Welch’s method." Optics Express 28, no. 9 (2020): 12529. http://dx.doi.org/10.1364/oe.387384.

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Cheng, Wei, Yapeng Chu, Xuefeng Chen, et al. "A combined crosstalk cancellation method based on wavelet packet denoising and Welch’s method for operational transfer path analysis." Measurement Science and Technology 30, no. 6 (2019): 065011. http://dx.doi.org/10.1088/1361-6501/ab0787.

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Mukherjee, Amrit, and Amlan Datta. "Bit Error Rate analysis using Converged Welch’s Method for Energy Detection Spectrum Sensing in Cognitive Radio." Journal of Engineering Science and Technology Review 9, no. 5 (2016): 117–20. http://dx.doi.org/10.25103/jestr.095.18.

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Козлов, Д. В., and А. Б. Степанов. "TIME-FREQUENCY SIGNAL ANALYSIS ALGORITHM USING CONTINUOUS WAVELET TRANSFORM AND WELCH’S PERIODOGRAM METHOD WITH ITS IMPLEMENTATION ON GRAPHICAL PROCESSING UNIT." ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА, no. 3 (July 2, 2021): 85–93. http://dx.doi.org/10.36622/vstu.2021.17.3.012.

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Работа посвящена описанию предложенного авторами алгоритма выполнения частотно-временного анализа сигналов с применением непрерывного вейвлет-преобразования совместно с использованием метода периодограмм Уэлча. При этом приводятся два метода вычисления непрерывного вейвлет-преобразования на основе взаимно-корреляционной функции и на основе быстрого преобразования Фурье. Представлены результаты реализации данного алгоритма на различных графических процессорах (на одноплатных компьютерах с графическим ускорителем и дискретных видеокартах). Выполняются оценка скорости вычисления непрерывного вейв

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Barik, Alhassan Abdul, Mohammed Ibrahim Daabo, and Stephen Akobre. "Improved Lempel-Ziv-Welch’s Error Detection and Correction Scheme using Redundant Residue Number System (RRNS)." Circulation in Computer Science 2, no. 6 (2017): 25–30. http://dx.doi.org/10.22632/ccs-2017-252-33.

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The greatest difficulty of compressing data is the assurance of the security, integrity, and accuracy of the data in storage in volatile media or transmission in network communication channels. Various methods have been proposed for dealing with the accuracy and consistency of compressed and encrypted data using error detection and correction mechanisms. The Redundant Residue Number System (RRNS) which is a trait of Residue Number System (RNS) is one of the available methods for detecting and correcting errors which involves the addition of extra moduli called redundant moduli. In this paper,

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Browarczyk, Jakub, Adam Kurowski, and Bozena Kostek. "Analyzing the Effectiveness of the Brain–Computer Interface for Task Discerning Based on Machine Learning." Sensors 20, no. 8 (2020): 2403. http://dx.doi.org/10.3390/s20082403.

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The aim of the study is to compare electroencephalographic (EEG) signal feature extraction methods in the context of the effectiveness of the classification of brain activities. For classification, electroencephalographic signals were obtained using an EEG device from 17 subjects in three mental states (relaxation, excitation, and solving logical task). Blind source separation employing independent component analysis (ICA) was performed on obtained signals. Welch’s method, autoregressive modeling, and discrete wavelet transform were used for feature extraction. Principal component analysis (PC

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Geng, Xingguang, Su Liu, Yitao Zhang, et al. "Adjacent Channel Interference Modeling of Single Vibration Point on Multichannel Dynamic Pressure Sensors." Journal of Sensors 2020 (February 12, 2020): 1–8. http://dx.doi.org/10.1155/2020/1953506.

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Pulse waves of a radial artery under different pressures applied through a cuff play an important role in disease diagnosis, especially in traditional chinese medicine (TCM). Pulse waves could be collected by a pressure sensor array affixed to an inflatable cuff. During a process of collecting pulse waves, one sensor of a sensor array moves up and down when the sensor is shocked by a pulse wave. Movement of the sensor leads to the passive displacement of other nearby sensors because of a connecting structure between them. Then, vibration signals will be generated by the nearby sensors although

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Jan, Show-Li, and Gwowen Shieh. "Optimal Sample Size Determinations for the Heteroscedastic Two One-Sided Tests of Mean Equivalence." Journal of Educational and Behavioral Statistics 42, no. 2 (2016): 145–65. http://dx.doi.org/10.3102/1076998616671974.

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Equivalence assessment is becoming an increasingly important topic in many application areas including behavioral and social sciences research. Although there exist more powerful tests, the two one-sided tests (TOST) procedure is a technically transparent and widely accepted method for establishing statistical equivalence. Alternatively, a direct extension of Welch’s solution for the Behrens–Fisher problem is preferred in equivalence testing of means when the homogeneity of variance assumption is violated. For advance planning of equivalence studies, this article describes both exact and nearl

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Przybyło, Jaromir, Eliasz Kańtoch, Mirosław Jabłoński, and Piotr Augustyniak. "Distant Measurement of Plethysmographic Signal in Various Lighting Conditions Using Configurable Frame-Rate Camera." Metrology and Measurement Systems 23, no. 4 (2016): 579–92. http://dx.doi.org/10.1515/mms-2016-0052.

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Abstract Videoplethysmography is currently recognized as a promising noninvasive heart rate measurement method advantageous for ubiquitous monitoring of humans in natural living conditions. Although the method is considered for application in several areas including telemedicine, sports and assisted living, its dependence on lighting conditions and camera performance is still not investigated enough. In this paper we report on research of various image acquisition aspects including the lighting spectrum, frame rate and compression. In the experimental part, we recorded five video sequences in

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Same, Mohammad Hossein, Gabriel Gandubert, Gabriel Gleeton, Preslav Ivanov, and René Landry. "Simplified Welch Algorithm for Spectrum Monitoring." Applied Sciences 11, no. 1 (2020): 86. http://dx.doi.org/10.3390/app11010086.

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Power Spectral Density (PSD) is an essential representation of the signal spectrum that depicts the power measurement content versus frequency. PSD is typically used to characterize broadband random signals and has a variety of usages in many fields like physics, engineering, biomedical, etc. This paper proposes a simple and practical method to estimate the PSD based on the Welch algorithm for spectrum monitoring. The proposed method can be easily implemented in most of software-based systems or low-level Field-Programmable Gate Arrays (FPGAs) and yields a smooth overview of the spectrum. The

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Bevilacqua, Alessandro, Giampaolo Gavelli, Serena Baiocco, and Domenico Barone. "CT Perfusion in Patients with Lung Cancer: Squamous Cell Carcinoma and Adenocarcinoma Show a Different Blood Flow." BioMed Research International 2018 (September 3, 2018): 1–10. http://dx.doi.org/10.1155/2018/6942131.

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Objectives. To characterize tumour baseline blood flow (BF) in two lung cancer subtypes, adenocarcinoma (AC) and squamous cell carcinoma (SCC), also investigating those “borderline” cases whose perfusion value is closer to the group mean of the other histotype. Materials and Methods. 26 patients (age range 36-81 years) with primary Non-Small Cell Lung Cancer (NSCLC), subdivided into 19 AC and 7 SCC, were enrolled in this study and underwent a CT perfusion, at diagnosis. BF values were computed according to the maximum-slope method and unreliable values (e.g., arising from artefacts or vessels)

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Yan, Jianzhuo, Hongzhi Kuai, Jianhui Chen, and Ning Zhong. "Analyzing Emotional Oscillatory Brain Network for Valence and Arousal-Based Emotion Recognition Using EEG Data." International Journal of Information Technology & Decision Making 18, no. 04 (2019): 1359–78. http://dx.doi.org/10.1142/s0219622019500238.

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Emotion recognition is a highly noteworthy and challenging work in both cognitive science and affective computing. Currently, neurobiology studies have revealed the partially synchronous oscillating phenomenon within brain, which needs to be analyzed from oscillatory synchronization. This combination of oscillations and synchronism is worthy of further exploration to achieve inspiring learning of the emotion recognition models. In this paper, we propose a novel approach of valence and arousal-based emotion recognition using EEG data. First, we construct the emotional oscillatory brain network

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Vargas-Olivares, Arturo, Octavio Navarro-Hinojosa, Samuel Pichardo, Laura Curiel, Moisés Alencastre-Miranda, and Jesús Enrique Chong-Quero. "Image Segmentation for the Treatment Planning of Magnetic Resonance-Guided High-Intensity Focused Ultrasound (MRgHIFU) Therapy: A Parametric Study." Applied Sciences 9, no. 24 (2019): 5296. http://dx.doi.org/10.3390/app9245296.

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In the present research work, image segmentation methods were studied to find internal parameters that provide an efficient identification of the regions of interest in Magnetic Resonance (MR) images used for the therapy planning of High-Intensity Focused Ultrasound (HIFU), a minimally invasive therapeutic method used for selective ablation of tissue. The involved image segmentation methods were threshold, level set and watershed segmentation algorithm with markers (WSAM), and they were applied to transverse and sagittal MR images obtained from an experimental setup of a murine experiment. A p

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Zhang, Lei, Rongrong Luo, Lin Wang, et al. "Prediction of EGFR-TKI efficacy in non-small cell lung cancer patients by metabolomics and genomics." Journal of Clinical Oncology 37, no. 15_suppl (2019): e20627-e20627. http://dx.doi.org/10.1200/jco.2019.37.15_suppl.e20627.

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e20627 Background: Metabolites and somatic mutations involved in EGFR-TKI efficacy remains unclear in non-small cell lung cancer (NSCLC) patients with EGFR sensitizing mutation (EGFRsm+). Here we performed a joint analysis of metabolomics and genomics data to identify metabolites and somatic mutations as biomarkers for EGFR-TKI efficacy. Methods: Metabolomic profiling of plasma samples (n = 43) from NSCLC patients with EGFRsm+, consisting of cohort A (n = 30) and B (n = 13), was conducted using UPLC or rapid separation LC-MS/MS. The 13 matched FFPE samples in cohort B were also used in the tar

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Ncube, N., D. Zhakata, and A. Muchandiona. "Application Of A Remote Sensing Technique In Estimating Evapotranspiration For Nyazvidzi Sub- Catchment., Zimbabwe." European Scientific Journal, ESJ 12, no. 21 (2016): 101. http://dx.doi.org/10.19044/esj.2016.v12n21p101.

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The integration of Remote Sensing and ground data into hydrological and cropwater requirement models enables water resources managers to adequately quantify the availability of water for irrigation in space and time. The SEBS algorithm was used to derive actual evapotranspiration estimates using MODIS images to assess cropwater requirements in the Ruti irrigation scheme after validation with ground based evapotranspiration measurements. Results show that actual evapotranspiration computed using SEBS (EToS) were comparable to those obtained using Penman Monteith method (R2=0.96). The Kendall’s

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Pichler, Viliam, Erika Gömöryová, Christoph Leuschner, et al. "Parent Material Effect on Soil Organic Carbon Concentration under Primeval European Beech Forests at a Regional Scale." Forests 12, no. 4 (2021): 405. http://dx.doi.org/10.3390/f12040405.

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The research presented herein explores soil organic carbon concentration (SOCC) under monodominant primeval forests of European beech trees and their association with parent material on a regional scale. Soil sampling to a maximum depth of 0.8 m was conducted in six localities in the West, East, and South Carpathians, Eastern Albanides, and Central Apennines, situated on different parent materials. Samples were analysed for SOCC by the dry combustion method. The average SOCC values representing individual localities ranged from 12.5 g kg−1 to 154.8 g kg−1 with a 99.7% coefficient of variation.

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Borota, Ljubisa, Lars Jangland, Per-Erik Åslund, et al. "Spot fluoroscopy: a novel innovative approach to reduce radiation dose in neurointerventional procedures." Acta Radiologica 58, no. 5 (2016): 600–608. http://dx.doi.org/10.1177/0284185116658682.

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Background Increased interest in radiation dose reduction in neurointerventional procedures has led to the development of a method called “spot fluoroscopy” (SF), which enables the operator to collimate a rectangular or square region of interest anywhere within the general field of view. This has potential advantages over conventional collimation, which is limited to symmetric collimation centered over the field of view. Purpose To evaluate the effect of SF on the radiation dose. Material and Methods Thirty-five patients with intracranial aneurysms were treated with endovascular coiling. SF wa

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Villarroel, Adrian, Grover Zurita, and Romeo Velarde. "Development of a Low-Cost Vibration Measurement System for Industrial Applications." Machines 7, no. 1 (2019): 12. http://dx.doi.org/10.3390/machines7010012.

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Vibration-Based Condition Monitoring (VBCM) provides essential data to perform Condition-Based Maintenance for efficient, optimal, reliable, and safe industrial machinery operation. However, equipment required to perform VBCM is often relatively expensive. In this paper, a low-cost vibration measurement system based on a microcontroller platform is presented. The FRDM K64F development board was selected as the most suitable for fulfilling the system requirements. The industrial environment is highly contaminated by noise (electromagnetic, combustion, airborne, sound borne, and mechanical noise

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Alam, Raquib-ul, Haifeng Zhao, Andrew Goodwin, Omid Kavehei, and Alistair McEwan. "Differences in Power Spectral Densities and Phase Quantities Due to Processing of EEG Signals." Sensors 20, no. 21 (2020): 6285. http://dx.doi.org/10.3390/s20216285.

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There has been a growing interest in computational electroencephalogram (EEG) signal processing in a diverse set of domains, such as cortical excitability analysis, event-related synchronization, or desynchronization analysis. In recent years, several inconsistencies were found across different EEG studies, which authors often attributed to methodological differences. However, the assessment of such discrepancies is deeply underexplored. It is currently unknown if methodological differences can fully explain emerging differences and the nature of these differences. This study aims to contrast

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Filippova, Yu Yu, D. Yu Nokhrin, and A. L. Burmistrova. "METHOD OF IMMUNOSIGNATURE IN DIFFERENTIAL DIAGNOSIS OF AUTISM SPECTRUM DISORDERS. A PILOT STUDY." Medical Immunology (Russia) 21, no. 2 (2019): 303–12. http://dx.doi.org/10.15789/1563-0625-2019-2-303-312.

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A large and diverse repertoire of antibodies encodes the history of past immunological experience, creating a global network of the body’s regulation system. In this article, we propose to use a peptide microarray (“immunosignature”) for evaluating global individual antibody patterns and bioinformatic data analysis for differential diagnosis of autism spectrum disorders. The peptide microarray consists of 124 000 antigen mimetics with random sequences covalently bound to the surface of the glass slide. A drop of plasma is tested for the presence of antibodies of distinct specificity, by measur

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Malchrowicz-Mośko, Ewa, François Gravelle, Agata Dąbrowska, and Patxi León-Guereño. "Do Years of Running Experience Influence the Motivations of Amateur Marathon Athletes?" International Journal of Environmental Research and Public Health 17, no. 2 (2020): 585. http://dx.doi.org/10.3390/ijerph17020585.

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The aim of the study was to investigate if years of running experience influence the motivations of marathon athletes. An empirical study was conducted during the last (20th) PKO Poznan Marathon, one of the largest and most popular mass running events in Poland, which was held in Poznan (Poland) in October 2019. A total of 493 marathon runners (29% of whom were female, and 71% of whom were male) took part in the cross-sectional study, which used the diagnostic survey method. The questionnaire employed the division of motives from the motivation of marathoners scale (MOMS) by Masters et al., ad

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Jagodzińska, Urszula. "Towards the Applications of Algorithms for Inverse Solutions in EEG Brain-Computer Interfaces." International Journal of Electronics and Telecommunications 59, no. 3 (2013): 277–83. http://dx.doi.org/10.2478/eletel-2013-0033.

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Abstract Locating the sources of EEG signals (signal generators), i.e. indicating the places in the brain that the signals come from is the objective of the inverse problem in BCI applications using EEG. The two algorithms based on the methods used in the inverse problem: the linear least squares method and the LORETA1 method were compared. An analysis of the accuracy of locating the sources generating EEG signals on the basis of the two above mentioned methods was carried out with the use of the MATLAB programme. The findings made it possible to determine both the complexity of calculation in

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Lui, K. K., B. A. Mander, S. Radom-Aizik, et al. "0335 Frontal Expression of NREM Sleep Oscillations are Associated with Executive Function in Children and Adolescents." Sleep 43, Supplement_1 (2020): A127. http://dx.doi.org/10.1093/sleep/zsaa056.332.

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Abstract Introduction The prefrontal cortex, an area known for executive functioning (including inhibition and self-monitoring) develops during childhood and adolescents, with a pattern of posterior to anterior brain development. Slow-wave activity (SWA) in NREM sleep, tracks brain development with high SWA power migrating from occipital to frontal region as brain maturation occurs. This pilot study aimed to examine whether slow wave topography is correlated with executive function in youth. Methods Seventeen healthy children and adolescents (ages 11-17; 10 females) underwent overnight polysom

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Yoshino, Yusuke, Ichiro Koga, Yoshitaka Wakabayashi, Takatoshi Kitazawa, and Yasuo Ota. "Prevalence of and Risk Factors for Low Free Testosterone Levels in Japanese Men with Well-controlled Human Immunodeficiency Virus Infection." Current HIV Research 18, no. 5 (2020): 381–86. http://dx.doi.org/10.2174/1570162x18666200720000344.

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Background: The change in the prevalence of hypogonadism with age in men with human immunodeficiency virus (HIV) infection is subject to debate. Objective: To address this issue, we diagnosed hypogonadism based on serum levels of free testosterone (fTST) rather than total testosterone which is thought to be an inaccurate indicator. We also determined the relationship between age and fTST levels and identified risk factors for hypogonadism in men with HIV infection. Method: We retrospectively reviewed fTST levels and associated clinical factors in 71 wellcontrolled HIV-infected men who were tre

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Nölker, G., and Johannes Brachmann. "Pulmonalvenenisolation zur Behandlung von Vorhofflimmern. Für wen, welche Methode, mit welchen Ergebnissen?" Herzschrittmachertherapie + Elektrophysiologie 19, no. 2 (2008): 73–78. http://dx.doi.org/10.1007/s00399-008-0002-9.

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Gosselt, Helen R., Ittai B. Muller, Gerrit Jansen, et al. "Identification of Metabolic Biomarkers in Relation to Methotrexate Response in Early Rheumatoid Arthritis." Journal of Personalized Medicine 10, no. 4 (2020): 271. http://dx.doi.org/10.3390/jpm10040271.

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This study aimed to identify baseline metabolic biomarkers for response to methotrexate (MTX) therapy in rheumatoid arthritis (RA) using an untargeted method. In total, 82 baseline plasma samples (41 insufficient responders and 41 sufficient responders to MTX) were selected from the Treatment in the Rotterdam Early Arthritis Cohort (tREACH, trial number: ISRCTN26791028) based on patients’ EULAR response at 3 months. Metabolites were assessed using high-performance liquid chromatography-quadrupole time of flight mass spectrometry. Differences in metabolite concentrations between insufficient an

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Said, Sherif, Abdullah S. Karar, Taha Beyrouthy, Samer Alkork, and Amine Nait-ali. "Biometrics Verification Modality Using Multi-Channel sEMG Wearable Bracelet." Applied Sciences 10, no. 19 (2020): 6960. http://dx.doi.org/10.3390/app10196960.

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Electrical biosignals have the potential for use as biometric authenticators, owing to their ability to facilitate liveness detection and concealed nature. In this work, the viability of using surface electromyogram (sEMG) as a biometric modality for users verification is investigated. A database of multi-channel sEMG signals is created using a wearable armband from able-bodied users. Each user used his/her muscles to form a password that consists of a unique combination of specific hand gestures. A total of 18 features are extracted from the signals in order to distinguish between the users.

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Kraft, Wilhelm. "Dehnen, aber richtig!" physiopraxis 1, no. 06 (2003): 32–35. http://dx.doi.org/10.1055/s-0032-1307774.

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Dehnen schützt vor Muskelkater und hilft Verletzungen zu vermeiden – oder? Das Thema Dehnen diskutieren Physiotherapeuten so kontrovers wie kein anderes: Wie, warum und nach welcher Methode soll man dehnen? Bei welchen Patienten nützt Dehnen und welchen Patienten sollte man besser den Rat geben, nicht zu dehnen? Lesen Sie in einem praxisorientierten Überblick den aktuellen Stand der Diskussion in Forschung und Wissenschaft zu Sinn und Unsinn des Dehnens.

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Stadler Elmer, Stefanie, and Stephan Hammer. "Sprach-melodische Erfindungen einer 9-jährigen." Zeitschrift für Entwicklungspsychologie und Pädagogische Psychologie 33, no. 3 (2001): 138–56. http://dx.doi.org/10.1026//0049-8637.33.3.138.

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Zusammenfassung. Die klangliche Gestaltung von Sprache ist eine komplex strukturierte Handlung, die in der Form von Liedern als vielseitiges und variabel geregeltes Kulturgut praktiziert wird. Text und Melodie werden derart koordiniert, dass eine parallel hierarchische Organisation entsteht, die eine kohärente Einheit bildet. Die Lied-Erfindungen einer Person bringen zum Ausdruck, wie differenziert, komplex, flexibel und kreativ die konventionellen Regeln der sprach-musikalischen Gestaltung implizit verstanden und angewendet werden können. Acht Lied-Erfindungen eines 9-jährigen Mädchens wurden

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Premper, Volker, and Wolfgang Schulz. "Komorbidität bei Pathologischem Glücksspiel *." SUCHT 54, no. 3 (2008): 131–40. http://dx.doi.org/10.1024/2008.03.03.

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Fragestellungen: Welche psychische Komorbidität liegt bei stationär behandelten pathologischen Glücksspielern vor, welches zeitliche Muster des Auftretens und welche Erkrankungswahrscheinlichkeit zeigt sich? Lassen sich Subtypen von Glücksspielern unterscheiden? </p><p> Methode: 101 Glücksspieler in stationärer Behandlung wurden mit dem DIA-X, der IPDE und der SCL-90-R untersucht. </p><p> Ergebnisse: Die höchsten Komorbiditätsraten (Zwölfmonatsprävalenz) zeigen sich für affektive Störungen (51,5 %), Angststörungen (47,5 %), Persönlichkeitsstörungen (27,7 %) und substanz

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Mink, Gerd. "Eine umfassende Genealogie der neutestamentlichen Überlieferung." New Testament Studies 39, no. 4 (1993): 481–99. http://dx.doi.org/10.1017/s0028688500011929.

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Im allgemeinen wird eine genealogische Gesamtdarstellung der neutestamentlichen Überlieferung (natürlich jeweils für eine Schrift oder Schriftengruppe) wegen ihrer hochgradigen Kontamination und der groβen Anzahl der Zeugen für unmöglich gehalten. Ich möchte hier einige Überlegungen anstellen, in welchem Sinne und unter welchen Bedingungen eine Genealogie und eine entsprechende stemmatische Darstellung möglich ist. Dazu kann ich hier nur in Grundzügen und in vereinfachter Form eine neue Methode vorstellen.

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Seats, Kevin J., Jesse F. Lawrence, and German A. Prieto. "Improved ambient noise correlation functions using Welch's method." Geophysical Journal International 188, no. 2 (2011): 513–23. http://dx.doi.org/10.1111/j.1365-246x.2011.05263.x.

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Nimptsch, Ulrike, Claire Bolczek, Melissa Spoden, Ekkehard Schuler, Josef Zacher, and Thomas Mansky. "Mengenentwicklung stationärer Behandlungen bei Erkrankungen der Wirbelsäule – Analyse der deutschlandweiten Krankenhausabrechnungsdaten von 2005 bis 2014." Zeitschrift für Orthopädie und Unfallchirurgie 156, no. 02 (2017): 175–83. http://dx.doi.org/10.1055/s-0043-119898.

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Zusammenfassung Hintergrund Seit der Einführung der Diagnosis related Groups (DRG) zur Vergütung akutstationärer Krankenhausleistungen wurden Anstiege der stationären Fallzahlen zur Behandlung von Erkrankungen der Wirbelsäule beobachtet. Ziel dieser Arbeit ist, diese Mengenentwicklung bevölkerungsbezogen und nach Behandlungsarten differenziert darzustellen. Material und Methode In den deutschlandweiten Krankenhausabrechnungsdaten (DRG-Statistik) wurden Behandlungsfälle mit operativer sowie nicht operativer Versorgung von Wirbelsäulenerkrankungen identifiziert. Unter Berücksichtigung der demogr

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Fuchs, Gesine, and Patricia Graf. "Feministisch Wissen schaffen: Erreichtes, in Arbeit und immer noch zu tun." Feministisch Wissen schaffen 30, no. 1-2021 (2021): 9–16. http://dx.doi.org/10.3224/feminapolitica.v30i1.02.

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Methoden in ihrer Vielfalt und ihrem Verknüpfungspotenzial bilden das innere Gerüst jeder Forschung und bestimmen in hohem Maße mit, welche Erkenntnisse gewonnen werden können. Ein integraler Bestandteil feministischer Wissenschaft ist die Reflexion darüber, was warum als gültiges Wissen gelten soll (Epistemologie), die Theorie und Analyse darüber, wie mit Forschung Erkenntnisse gewonnen werden sollen (Methodologie) und schließlich mit welchen konkreten Forschungswerkzeugen die Fragestellungen bearbeitet werden können (Methoden). Diese Einleitung resümiert, dass Epistemologien und Methodologie

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Woznica, Marcel. "Videographie im Wandel." Qualitative Online-Forschung. Methodische und methodologische Herausforderungen 21, no. 1-2020 (2020): 53–68. http://dx.doi.org/10.3224/zqf.v21i1.04.

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Im vorliegenden Beitrag wird ein videographisches Forschungsdesign vorgestellt und auf das populäre Augmented Reality (AR) Mobile Game Pokémon GO angewendet. Dabei wird herausgearbeitet, wie ein mediatisiertes Phänomen methodisch untersucht werden kann, welches sich vor allem durch seine kleinteiligen, an die Spiel- und/oder Alltagsrealität gerichteten Interaktionsformen sowie seine flüchtige Spielpraxis auszeichnet. Es wird eine phänomenologische und dramatologische Perspektive eingenommen, um eben diese methodischen Kernprobleme herauszuarbeiten. Das Datenmaterial, das mit einer mobilen GoPr

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Schwär, Daniel, Andreas Kunz, Stephan Dehen, Frederik Zanger, and Fernando Puente León. "Analyse von 3D-CT-Aufnahmen von Spänen zur Extrahierung der Segmentspanbildungsfrequenz." tm - Technisches Messen 87, s1 (2020): s22—s27. http://dx.doi.org/10.1515/teme-2020-0039.

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ZusammenfassungDie Vermessung von Spänen, welche bei einem Drehprozess entstehen, ist insbesondere bei einer helixartigen Form eine große Herausforderung. Die Analyse lässt sich nur in den Randbereichen durchführen, da die inneren Bereiche durch den Span selbst verdeckt werden. Außerdem lassen sich Späne, die aus sprödem Material bestehen, nicht zerstörungsfrei analysieren. Da sich metallisches Material sehr genau durch einen Computertomographen vermessen lässt, wurde eine Methode entwickelt, mit welcher sich das 3D-Bild eines Spanes virtuell zu einem geradlinigen Span transformieren lässt. Im

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Kaufmann, Yvonne M., Lisa Maiwald, Svenja Schindler, and Florian Weck. "Wie wirkt sich mehrmaliges Kompetenz-Feedback auf psychotherapeutische Behandlungen aus?" Zeitschrift für Klinische Psychologie und Psychotherapie 46, no. 2 (2017): 96–106. http://dx.doi.org/10.1026/1616-3443/a000412.

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Zusammenfassung. Theoretischer Hintergrund: Einflüsse von therapeutenorientiertem Kompetenz-Feedback in der Psychotherapieausbildung wurden bislang wenig untersucht. Fragestellung: Wie gehen Ausbildungstherapeuten mit Feedback um? Welchen Einfluss hat ein regelmäßiges Kompetenz-Feedback auf die Qualität psychotherapeutischer Behandlungen (insbesondere Therapiesitzungen, therapeutische Beziehung, Person des Therapeuten, Supervision)? Methode: Elf Therapeuten wurden mithilfe eines halbstrukturierten Interviewleitfadens befragt. Die Auswertung erfolgte mittels qualitativer Inhaltsanalyse nach May

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Martin, Albert, and Thorsten Jochims. "Beschäftigungsverhalten mittelständischer Unternehmen." ZfKE – Zeitschrift für KMU und Entrepreneurship: Volume 67, Issue 4 67, no. 4 (2019): 208–33. http://dx.doi.org/10.3790/zfke.67.4.207.

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Zusammenfassung Der vorliegende Beitrag besch&#xE4;ftigt sich mit der Entscheidung von mittelst&#xE4;ndischen Unternehmen, zus&#xE4;tz&#xAD;liche Mitarbeiter einzustellen und mit der Frage, unter welchen Bedingungen die Ausweitung der Gesch&#xE4;ftst&#xE4;tigkeit eine solche Entscheidung veranlasst. Das diesbez&#xFC;gliche Entscheidungsverhalten ist bislang wenig erforscht. Im Vordergrund der Untersuchung steht die Frage, wie sich in den &#xFC;berschaubaren und wenig formalen Verh&#xE4;ltnissen, die typisch f&#xFC;r mittelst&#xE4;ndische Unternehmen

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Banser, Deike. "Welche Methode ist es?" Chemie in unserer Zeit 38, no. 3 (2004): 216–17. http://dx.doi.org/10.1002/ciuz.200490050.

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Hatscher, Deike. "Welche Methode ist es?" Chemie in unserer Zeit 40, no. 3 (2006): 214. http://dx.doi.org/10.1002/ciuz.200690041.

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Lomakin, Alexander, and Joachim Deutscher. "Algebraische Detektion und Identifikation von Parameterfehlern in der Robotik." at - Automatisierungstechnik 69, no. 8 (2021): 645–55. http://dx.doi.org/10.1515/auto-2021-0045.

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Zusammenfassung In diesem Beitrag wird eine neue algebraische Methode zur Detektion und Identifikation von Parameterfehlern für Roboter vorgestellt. Sie ist unabhängig von auftretenden Störungen und ermöglicht es, zusätzlich zu bestimmen, welche Fehler detektierbar sind. Das Verfahren basiert dabei auf der Rekonstruktion des Residuums als nichtlinearen differentialalgebraischen Ausdruck, der numerisch effizient mithilfe einer polynomialen Approximation ausgewertet wird. Daraus resultiert ein Ansatz für die Fehlerdetektion, -identifikation und -analyse, welcher mit FIR-Filtern, allein auf Basis

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Evers, Luc JW, Yordan P. Raykov, Jesse H. Krijthe, et al. "Real-Life Gait Performance as a Digital Biomarker for Motor Fluctuations: The Parkinson@Home Validation Study." Journal of Medical Internet Research 22, no. 10 (2020): e19068. http://dx.doi.org/10.2196/19068.

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Background Wearable sensors have been used successfully to characterize bradykinetic gait in patients with Parkinson disease (PD), but most studies to date have been conducted in highly controlled laboratory environments. Objective This paper aims to assess whether sensor-based analysis of real-life gait can be used to objectively and remotely monitor motor fluctuations in PD. Methods The Parkinson@Home validation study provides a new reference data set for the development of digital biomarkers to monitor persons with PD in daily life. Specifically, a group of 25 patients with PD with motor fl

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Rießen, Anne van, and Stefanie Henke. "Der Nutzen zivilgesellschaftlichen Engagements aus der Perspektive der Engagierten vor und während der CoronaPandemie." Voluntaris 8, no. 2 (2020): 205–25. http://dx.doi.org/10.5771/2196-3886-2020-2-205.

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Der Artikel fasst die Ergebnisse einer Studie im Mixed-Methods-Design zusammen und beleuchtet dabei zivilgesellschaftliches Engagement1 im Rahmen institutioneller Nachbarschaftshilfen vor und während der ersten Wochen der Corona-Pandemie. Dazu wird zunächst analysiert, welche Personen sich während der Pandemie zum Engagement bereit erklären, um dann aus der Sicht der Befragten zu rekonstruieren, welchen Nutzen sie ihrem Engagement zuschreiben. Schließlich wird reflektiert, was Menschen veranlasst, sich in der besonderen Situation der Pandemie bei etablierten Trägern der Wohlfahrtspflege zu eng

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Rezvani, Farhad, Martin Härter, and Jörg Dirmaier. "Measuring walking impairment in patients with intermittent claudication: psychometric properties of the Walking Estimated-Limitation Calculated by History (WELCH) questionnaire." PeerJ 9 (August 26, 2021): e12039. http://dx.doi.org/10.7717/peerj.12039.

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Objectives Patient-reported outcome measures can facilitate the assessment of walking impairment in peripheral artery disease patients with intermittent claudication in clinical trials and practice. The aim of this study was to test the psychometric properties of the German version of the ‘Walking Estimated-Limitation Calculated by History’ (WELCH) questionnaire. Methods The assessed properties included feasibility, test-retest reliability, construct validity (i.e., convergent, divergent and known-groups validity) and responsiveness using classic psychometric methods. Psychometric properties w

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Fankhauser, Regula, and Angela Kaspar. "Habitusirritationen in einer Lehrpersonenweiterbildung." Zeitschrift für Qualitative Forschung 20, no. 1-2019 (2019): 175–90. http://dx.doi.org/10.3224/zqf.v20i1.13.

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Pädagogische Adaptionen des Habituskonzepts fokussieren verstärkt auf die Möglichkeit zur Transformation und arbeiten ein Verständnis von Habitus heraus, in dem Formation und Transformation dialektisch verschränkt erscheinen. Die Frage nach dem Verhältnis von Habitusformung und -umformung steht auch im Fokus des folgenden Artikels. Es wird ihr auf der Basis von Interviews mit Unterstufenlehrpersonen nachgegangen, welche nach der Methode der Video Elicitation durchgeführt wurden und in deren Fokus die Wahrnehmung und Beurteilung körpergebundener Unterrichtspraktiken stand. Die ausgewählten Fall

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Horatzek, Sascha. "Welche ist die richtige Methode?" ZWF Zeitschrift für wirtschaftlichen Fabrikbetrieb 102, no. 6 (2007): 398–401. http://dx.doi.org/10.3139/104.101158.

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Kapellen, Thomas M. "Welche Methode liefert zuverlässige Werte?" Info Diabetologie 7, no. 4 (2013): 16. http://dx.doi.org/10.1007/s15034-013-0380-x.

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Böttcher, Bettina, and Ludwig Wildt. "Notfallkontrazeption: welche Methode für wen?" gynäkologie + geburtshilfe 18, no. 1 (2013): 27–30. http://dx.doi.org/10.1007/s15013-013-0016-1.

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Lüthgens, K. "Bestimmung von Kreatinin: mit welcher Methode?" DMW - Deutsche Medizinische Wochenschrift 131, no. 37 (2006): 2038. http://dx.doi.org/10.1055/s-2006-951330.

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