bluuebunny/crossref_metadata_2025_split huggingface dataset:
On the controllability of a singular nonregular methaniser system
Authors: Tmar Zied , Wafi Taieb , Besbes Mongi 
Published: April 2023

AbstractThe control and command of singular systems of non-regular type pose very complex problems for automation engineers. The classic concepts of controllability are not applicable because of the non-regularity of the response of such systems whose internal states are no longer controllable in the temporal or frequency plane. New concepts are rather considered such as R-Controllability and Imp-Controllability combined with $$H_2/H_\infty $$

H
2

/

H
∞

type stabilization approaches. This paper proposes a new synthesis of a $$H_2/H_\infty $$

H
2

/

H
∞

controller, written in terms of LMI-like matrix inequalities, dedicated to this type of system. The simulation results, of the controller synthesized on methanation plant are encouraging and have led to better performance compared to other scientific publications in the field.
Full-order adaptive sliding mode control with extended state observer for high-speed PMSM speed regulation
Authors: Luo Meng , Yu Zhichun , Xiao Yang , Xiong Liyong , Xu Qiang , Ma Li , Wu Zhihong 
Published: April 2023

AbstractIn order to achieve speed control of high-speed permanent magnet synchronous motor with high precision, the sliding mode control (SMC) is usually adopted. However, the inherent chattering phenomenon affects the speed control performance. In order to solve this problem, a composite speed regulator is proposed in this paper, which is made up of two parts: the adaptive full-order SMC and extended state observer (ESO). Switching gain adaption law is proposed for minimizing chattering as much as possible while ensuring the robustness of sliding mode control. The total disturbance is estimated by the ESO and through feedforward, thus improving the system anti-disturbance ability. Finally, the effectiveness of the proposed speed regulator has been validated in the test bench.
A new method for estimating ore grade based on sample length weighting
Authors: Liu Zhan-Ning , Deng Yang-Yang , Tian Rui , Liu Zhan-Hui , Zhang Peng-Wei 
Published: April 2023

AbstractEstimation of ore grade is very important for the value evaluation of ore deposits, and it directly affects the development of mineral resources. To improve the accuracy of the inverse distance weighting (IDW) method in ore grade estimation and reduce the smoothing effect of the IDW method in grade estimation, the weight calculation method involved in the IDW method was improved. The length parameter of the ore sample was used to calculate the weight of the IDW method. The length of the ore samples was used as a new factor of the weighting calculation. A new method of IDW integrated with sample length weighting (IDWW) was proposed. The grade estimation of Li, Al, and Fe in porcelain clay ore was used as a case study. A comparative protocol for grade estimation via the IDWW method was designed and implemented. The number of samples involved in the estimation, sample combination, sample grade distribution, and other factors affecting the grade estimation were considered in the experimental scheme. The grade estimation results of the IDWW and the IDW methods were used for comparative analysis of grades of the original and combined samples. The estimated results of the IDWW method were also compared with those of the IDW method. The deviation analysis of the estimated grade mainly included the minimum, maximum, mean, and coefficient of variation of the ore grade. The estimation effect of IDWW method was verified. The minimum deviations of the estimated grade of Li, Al, and Fe were between 9.129% and 59.554%. The maximum deviations were between 4.210 and 22.375%. The mean deviations were between − 1.068 and 7.187%. The deviations in the coefficient of variation were between 3.076 and 36.186%. The deviations in the maximum, minimum, mean, and coefficients of variation of the IDWW were consistent with those of the IDW, demonstrating the accuracy and stability of the IDWW method. The more the samples involved in the estimation, the greater the estimation deviations of IDW and IDWW methods. The estimated deviations of Li, Al, and Fe were affected by the shape of the grade distribution, when the same estimation parameters were used. The grade distribution pattern of the samples significantly influenced the grade estimation results. The IDWW method offers significant theoretical advantages and addresses the adverse effects of uneven sample lengths on the estimates. The IDWW method can effectively reduce the smoothing effect and improves the utilization efficiency of the original samples.
Accuracy of a smartphone application for blood pressure estimation in Bangladesh, South Africa, and Tanzania
Authors: Festo Charles , Vannevel Valerie , Ali Hasmot , Tamrat Tigest , Mollel Getrud J. , Hlongwane Tsakane , Fahmida Kaniz A. , Alland Kelsey , Barreix María , Mehrtash Hedieh , Silva Ronaldo , Thwin Soe Soe , Mehl Garrett , Labrique Alain B. , Masanja Honorati , Tunçalp Ӧzge 
Published: April 2023

AbstractUndetected and unmonitored hypertension carries substantial mortality and morbidity, especially during pregnancy. We assessed the accuracy of OptiBPTM, a smartphone application for estimating blood pressure (BP), across diverse settings. The study was conducted in community settings: Gaibandha, Bangladesh and Ifakara, Tanzania for general populations, and Kalafong Provincial Tertiary Hospital, South Africa for pregnant populations. Based on guidance from the International Organization for Standardization (ISO) 81,060–2:2018 for non-invasive BP devices and global consensus statement, we compared BP measurements taken by two independent trained nurses on a standard auscultatory cuff to the BP measurements taken by a research version of OptiBPTM called CamBP. For ISO criterion 1, the mean error was 0.5 ± 5.8 mm Hg for the systolic blood pressure (SBP) and 0.1 ± 3.9 mmHg for the diastolic blood pressure (DBP) in South Africa; 0.8 ± 7.0 mmHg for the SBP and −0.4 ± 4.0 mmHg for the DBP in Tanzania; 3.3 ± 7.4 mmHg for the SBP and −0.4 ± 4.3 mmHg for the DBP in Bangladesh. For ISO criterion 2, the average standard deviation of the mean error per subject was 4.9 mmHg for the SBP and 3.4 mmHg for the DBP in South Africa; 6.3 mmHg for the SBP and 3.6 mmHg for the DBP in Tanzania; 6.4 mmHg for the SBP and 3.8 mmHg for the DBP in Bangladesh. OptiBPTM demonstrated accuracy against ISO standards in study populations, including pregnant populations, except in Bangladesh for SBP (criterion 2). Further research is needed to improve performance across different populations and integration within health systems.
Microbubble cavitation restores Staphylococcus aureus antibiotic susceptibility in vitro and in a septic arthritis model
Authors: Zhao Neil , Curry Dylan , Evans Rachel E. , Isguven Selin , Freeman Theresa , Eisenbrey John R. , Forsberg Flemming , Gilbertie Jessica M. , Boorman Sophie , Hilliard Rachel , Dastgheyb Sana S. , Machado Priscilla , Stanczak Maria , Harwood Marc , Chen Antonia F. , Parvizi Javad , Shapiro Irving M. , Hickok Noreen J. , Schaer Thomas P. 
Published: April 2023

AbstractTreatment failure in joint infections is associated with fibrinous, antibiotic-resistant, floating and tissue-associated Staphylococcus aureus aggregates formed in synovial fluid (SynF). We explore whether antibiotic activity could be increased against Staphylococcus aureus aggregates using ultrasound-triggered microbubble destruction (UTMD), in vitro and in a porcine model of septic arthritis. In vitro, when bacterially laden SynF is diluted, akin to the dilution achieved clinically with lavage and local injection of antibiotics, amikacin and ultrasound application result in increased bacterial metabolism, aggregate permeabilization, and a 4-5 log decrease in colony forming units, independent of microbubble destruction. Without SynF dilution, amikacin + UTMD does not increase antibiotic activity. Importantly, in the porcine model of septic arthritis, no bacteria are recovered from the SynF after treatment with amikacin and UTMD—ultrasound without UTMD is insufficient. Our data suggest that UTMD + antibiotics may serve as an important adjunct for the treatment of septic arthritis.
Phonon transmission through a nonlocal metamaterial slab
Authors: Chen Yi , Wang Ke , Kadic Muamer , Guenneau Sebastien , Wang Changguo , Wegener Martin 
Published: April 2023

AbstractPrevious theory and experiment has shown that introducing strong (nonlocal) beyond-nearest-neighbor interactions in addition to (local) nearest-neighbor interactions into rationally designed periodic lattices called metamaterials can lead to unusual wave dispersion relations of the lowest band. For roton-like dispersions, this especially includes the possibility of multiple solutions for the wavenumber at a given frequency. Here, we study the one-dimensional frequency-dependent acoustical phonon transmission of a slab of such nonlocal metamaterial in a local surrounding. In addition to the usual Fabry-Perot resonances, we find a series of bound states in the continuum. In their vicinity, sharp Fano-type transmission resonances occur, with sharp zero-transmission minima next to sharp transmission maxima. Our theoretical discussion starts with a discrete mass-and-spring model. We compare these results with solutions of a generalized wave equation for heterogeneous nonlocal effective media. We validate our findings by numerical calculations on three-dimensional metamaterial microstructures for one-dimensional acoustical wave propagation.
Hemicellulolytic enzymes in lignocellulose processing
Authors: Østby Heidi , Várnai Anikó 
Published: April 2023

AbstractLignocellulosic biomass is the most abundant source of carbon-based material on a global basis, serving as a raw material for cellulosic fibers, hemicellulosic polymers, platform sugars, and lignin resins or monomers. In nature, the various components of lignocellulose (primarily cellulose, hemicellulose, and lignin) are decomposed by saprophytic fungi and bacteria utilizing specialized enzymes. Enzymes are specific catalysts and can, in many cases, be produced on-site at lignocellulose biorefineries. In addition to reducing the use of often less environmentally friendly chemical processes, the application of such enzymes in lignocellulose processing to obtain a range of specialty products can maximize the use of the feedstock and valorize many of the traditionally underutilized components of lignocellulose, while increasing the economic viability of the biorefinery. While cellulose has a rich history of use in the pulp and paper industries, the hemicellulosic fraction of lignocellulose remains relatively underutilized in modern biorefineries, among other reasons due to the heterogeneous chemical structure of hemicellulose polysaccharides, the composition of which varies significantly according to the feedstock and the choice of pretreatment method and extraction solvent. This paper reviews the potential of hemicellulose in lignocellulose processing with focus on what can be achieved using enzymatic means. In particular, we discuss the various enzyme activities required for complete depolymerization of the primary hemicellulose types found in plant cell walls and for the upgrading of hemicellulosic polymers, oligosaccharides, and pentose sugars derived from hemicellulose depolymerization into a broad spectrum of value-added products.
Act It Out! Using Simulations for Professional Development to Build Cultural Responsivity
Authors: Campbell Denisha 
Published: April 2023

Purpose:
This tutorial aims to outline a simulation-based professional development (PD) model that can be used to help support speech-language pathologists and educators to better support their students whose cultural and linguistic background differs from their own.

Method:
In this tutorial, readers will learn the components of an effective PD and the value of using simulations for a PD centered on cultural and linguistic diversity, and they will be given a model of a simulation PD. Sample scripts, goals, and excerpts from educators that participated in the model PD are also included for reference.

Implications:
This tutorial has clinical utility for aiding professionals, school districts, and other relevant stakeholders to incorporate a framework based on an integration of evidence-based research and anecdotal evidence. Following the model outlined in this tutorial may be useful for supporting therapists to better support the needs of culturally and linguistically diverse students.
Weighted sparse Bayesian method for direction of arrival estimation based on grid fission
Authors: Wei Shuang , Lu Jiyu 
Published: April 2023

AbstractAn off‐grid weighted sparse Bayesian learning algorithm based on grid fission for direction of arrival estimation is proposed. The existing grid fission algorithms can use fewer grid points with variant intervals to estimate the true DOAs. However, their learning processes are based on the traditional sparse Bayesian algorithm, which only assigns the same prior distribution assumption to the signals on all grids, but ignores the difference of signal distribution of different grid points. It will result in inaccurate fission location and fission direction because of the insufficient resolution of the spatial spectrum, reducing the estimation accuracy. Moreover, the fission strategy will cost much computation time due to the increase of grid points. To solve these problems, the proposed algorithm utilises the orthogonality of signal subspace and noise subspace to design the weights for prior signal distribution assumption, making the peaks of spatial spectrum more pronounced and easy to distinguish, using more accurate estimated DOAs and off‐grid parameter to determine the fission location and direction. In addition, the fission process deletes redundant grid points to simplify calculations. Compared with the existing grid fission algorithms, the proposed method has superior performance in estimation accuracy and computational time.
Geschlechterspezifische Effekte in der bewegungstherapeutischen
Behandlung von hämodynamischen Regulationsstörungen bei Morbus
Parkinson
Authors: Siche-Pantel Franziska , Jakobsmeyer Rasmus , Buschfort Rüdiger , Mühlenberg Manfred , Michels Heinke , Oesterschlink Julian , Reinsberger Claus 
Published: April 2023

Zusammenfassung
Einleitung Motorische Symptome bei Morbus Parkinson lassen sich durch
körperliche Aktivität modifizieren. Inwiefern dies auch
für nicht-motorische, autonome Symptome gilt, ist weitaus weniger
bekannt. Die Erkrankung weist zudem eine Vielzahl an geschlechterspezifischen
Unterschieden auf. Epidemiologische Untersuchungen deuten zum Beispiel auf einen
besseren primärpräventiven Effekt durch körperliche
Aktivität bei Männern als bei Frauen hin. Daten zu
geschlechterspezifischen Effekten auf das autonome Nervensystem sind jedoch
limitiert. Im Rahmen der vorliegenden Pilotstudie sollen mögliche
geschlechterspezifische Effekte einer Bewegungsintervention auf
Störungen der hämodynamischen Regulation als Manifestation
nicht-motorischer Symptome untersucht werden. Diese sind aufgrund ihrer oft
gegensätzlichen hypo- und hypertonen Ausprägung schwierig
medikamentös zu behandeln, lassen sich aber gegebenenfalls durch
Bewegungsinterventionen modifizieren.
Methodik Bei 42 Patienten und Patientinnen (Alter: 70,3 Jahre; 24
Männer; 18 Frauen) wurden vor und nach einer mehrwöchigen,
stationären Parkinsonkomplexbehandlung hämodynamische Parameter
in einem Schellongtest untersucht. Mittels anschließender
Regressionsanalyse erfolgte eine Quantifizierung der Abhängigkeit von
den Faktoren Alter, Body Mass Index, Krankheitsdauer, Vorerkrankungen,
Sitzendblutdruck und hypotensiv wirkender Medikamente.
Ergebnis Bei 44% der Männer und 46% der Frauen
traten hämodynamische Regulationsstörungen im Stand und in
Rückenlage mindestens einmal auf. Eine vor Therapiebeginn
präsentierte Regulationsstörung im Stand zeigte sich in keiner
Geschlechtergruppe durch die Parkinsonkomplexbehandlung verändert.
Frauen zeigten zu Therapieende jedoch einen signifikant niedrigeren Blutdruck im
Liegen (p=0,022*). Unabhängig von der Komplextherapie
fiel der Blutdruck in Rückenlage bei Frauen nach Orthostasebelastung
höher aus als davor (vor Therapie: p=0,015 *;
nach Therapie: p=0,021*). Jedes Lebensjahr erhöhte das
Risiko für eine hämodynamische Regulationsstörung in
Rückenlage in der Gesamtgruppe um 12,4% (Regressionskoeffizient
B=0,117; p=0,014 *; Exp(B)=1,124).
Schlussfolgerung Systematische Effekte auf Blutdruckwerte im Rahmen von
Orthostasereaktionen durch eine Parkinsonkomplexbehandlung konnten nicht
nachgewiesen werden. Allerdings zeigte sich bei Frauen nach
Parkinsonkomplexbehandlung eine Senkung der Blutdruckwerte in
Rückenlage. Das scheinbar unsystematische, teils geschlechterspezifische
Auftreten hämodynamischer Regulationsstörungen fordert ein
individualmedizinisch angelegtes Vorgehen im therapeutischen Alltag.
Adipositas in der Rehabilitation
Authors: Metzler Michael 
Published: April 2023

ZUSAMMENFASSUNGDas Thema Ernährung ist angesichts der Entwicklung der Adipositas kein Verpflegungsthema, sondern eine Herausforderung, präventive Konzepte zur Förderung von Gesundheitskompetenzen im Alltag der beruflichen Bildung zu etablieren. Für eine Nachhaltigkeit in der beruflichen Förderung ergeben sich Hinweise, dass eine nach ICF ausgerichtete Förderung von Kompetenzen von Bedeutung ist. Wie lassen sich Konzepte zur Förderung von Gesundheitskompetenzen im Alltag der beruflichen Bildung etablieren? Literaturanalyse und Stichprobenerhebungen der Adipositas im BFW, Untersuchungen in den Berufsförderungswerken hierzu gab es bisher nicht. Die aktive Gestaltung einer längerfristigen Prävention über die gesamte Dauer eines Qualifizierungszeitraumes kann ein wichtiger gesellschafts- und arbeitsmarktrelevanter Faktor werden, sofern ihm ein erhöhter Stellenwert zugebilligt wird. Es gilt, die BFW-Konzepte durch eine bedarfsgerechte, aber auch umsetzbare Ernährungsstrategien zu unterstützen. Fazit für die Praxis: Der Prävention sollte in der beruflichen Rehabilitation ein erhöhter Stellenwert zugebilligt werden. Es gilt, die BFW-Konzepte durch eine bedarfsgerechte, aber auch umsetzbare Ernährungsstrategien zu unterstützen.
Individuelle Behandlung bei Glaukompatienten mit einem Diabetes mellitus
Authors: Lübke Jan 
Published: April 2023

ZUSAMMENFASSUNGDas Glaukom und der Diabetes mellitus sind zwei in Europa und weltweit häufig vorkommende chronische Erkrankungen, die einer intensiven Therapie bedürfen. Pathophysiologisch werden verschiedene Mechanismen diskutiert, die vor allem beim Vorliegen eines Diabetes mellitus die Entstehung eines Glaukoms begünstigen. Die medikamentöse und chirurgische Einstellung des Augeninnendruckes ist bei Patienten mit einem Diabetes mellitus mit einigen Einschränkungen verbunden, so zeigen die filtrierenden Eingriffe geringere Erfolgsraten als bei nicht an Diabetes erkrankten Glaukompatienten. Neben der rein augenheilkundlich-endokrinologischen Therapie sollte ebenfalls die psychologische Belastung durch zwei chronische Erkrankungen bedacht und in den individuellen Therapieplan aufgenommen werden.
Liver Anatomy and Cross-Sectional Imaging Techniques: A Practical Approach
Authors: Garde Parul Samir , Bhute Rahul Bhagwan 
Published: April 2023

AbstractIn the past decade or two, there has been a significant change in the epidemiology of liver diseases, such as rise in the incidence of nonalcoholic steatohepatitis, good control of viral load in hepatitis B and C related liver diseases, and revolutionary changes in the treatment of hepatocellular carcinoma. Hence, monitoring of these diseases warrants effective noninvasive imaging techniques. Besides, organ transplantation has evolved to play a major role in the treatment of chronic liver diseases and acute liver failures. With the advent of better technology and new imaging sequences in cross-sectional imaging, there has been a dramatic change in the arena of liver imaging. Knowledge of these imaging modalities and effective application of the existing and new imaging techniques is essential to meet these changing clinical needs. This article aims at revisiting the liver anatomy from a practical stand point and touches upon the key cross-sectional imaging techniques of computed tomography and magnetic resonance imaging with recent advances.
Psychological capabilities for salespeople’s sustainable work performance in financial services sector
Authors: Ewe Soo Yeong , Ho Helen Hui Ping 
Published: April 2023

AbstractThe present study investigated the importance of psychological capabilities to support financial product salespeople in overcoming challenges and sustaining motivation and work performance during and after COVID-19 pandemic. Furthermore, this study suggests useful ways to develop the psychological capabilities. By using an interpretive phenomenological approach as the methodology, twenty financial product salespeople have been interviewed. The findings reveal that positive mindset, belief-in-oneself and not-giving-up are crucial psychological capabilities for salespeople’s sustainable work performance. These psychological capabilities match with the elements in the Psychological Capital Model. Positive mindset is associated with hope and optimism; belief-in-oneself is associated with self-efficacy, and not-giving-up is associated with resilience. The study also found approaches that help develop these psychological elements, including being proactive in seeking help and guidance, setting personal goal, and continuous learning. The findings contribute to the financial services and sales literature by providing a better understanding of how psychological capabilities help motivate financial product salespeople toward positive and sustainable work outcomes, and the ways to develop the psychological capabilities.