Miracle-dz/UniFAR-FTUs huggingface dataset:
Approximative Threshold Optimization From Single Antenna to Massive SIMO Authentication

In a wireless sensor network, data from various sensors are gathered to estimate the system-state of a process system. However, adversaries aim at distorting the estimation, for which they may infiltrate sensors or position additional devices in the environment. For authentication, the receiver can evaluate the integrity of measurements from different sensors jointly with the temporal integrity of channel measurements from each sensor. Therefore, we design a security protocol, in which Kalman filters predict the system-state and the channel-state values. Then, the received data is authenticated by a hypothesis test. We theoretically analyze the adversarial success probability and the reliability in two ways, based on chi-square and Gaussian approximations. The two approximations are exact for small and large data vectors, respectively. Hence, the Gaussian approximation is suitable for analyzing massive single-input multiple-output (SIMO) setups. This approximation is adapted to channel hardening, which occurs in massive SIMO fading channels. As adversaries always look for the weakest point, a time-independent security level is required. Hence, the approximations are used to propose time-varying thresholds for the hypothesis test, which approximately attain a constant security level. Numerical results show that either the security level or the threshold value can be time-independent, but not both.
SEROEPIDEMIOLOGICAL STUDY OF THE PREVALENCE OF TOXOCARIASIS AMONG HEALTHY PERSONS IN SOME AREAS OF BULGARIA

Background. Human toxocariasis is a zoonotic disease in which the human being is an accidental host. The broad distribution of its definitive hosts determines the presence of the disease worldwide. Demographic factors, the way and standard of living, the existence of domestic animals in the household and their infestation are important for the epidemiology of the infection and determine the differences in reported seroprevalence. Data on the prevalence of toxocariasis in our country are limited. In this regard, the aim of the present study is to determine the seroprevalence of this parasitic infection among healthy individuals, in three regions of Bulgaria (Plovdiv, Stara Zagora and Smolyan). Material and Methods. Serum samples obtained from 247 individuals were tested by enzyme-linked immunosorbent assay (ELISA) for anti-Toxocara IgG antibodies. Results. Positive results were found in 26 (10.5%) of them, which indicated the presence of an asymptomatic form of the disease in our country. We found different seropositivity rates in the studied districts of the country. Conclusions. Performing immunological tests among various groups of the population is of great importance for the early detection of Toxocara infection, as well as for determining the main factors for the spread of the disease.
Tornado Vortex Simulation at Purdue University

Abstract A 4 m wide and 7 m tall tornado vortex generator (including exhaust fan and duct work) has been constructed at Purdue University that operates on a principle similar to that of the earlier machine modeled by Ward (1972). Characteristics of the Purdue simulator are described, as well as the corresponding modifications and improvements that have been made to Ward's machine. Selected photographs of vortex configurations obtained in the simulator demonstrate the ability of the machine to achieve vortex breakdown and multiple vortex configuration. A radial-axial profile of velocity magnitudes (using hot-film anemometry) has been obtained for the state of vortex breakdown characterized by two interlocking helical spiral vortices. This preliminary result shows the potential that the experimental system offers for obtaining quantitative information about the flow field of selected vortex configurations. Multiple vortex phenomena in the thunderstorm-tornado system are examined in light of the laboratory s.
A Multivariate Synthetic Control Chart for Monitoring Process Mean Vector

In this article, a multivariate synthetic control chart is developed for monitoring the mean vector of a normally distributed process. The proposed chart is a combination of the Hotelling's T 2 chart and Conforming Run Length chart. The operation, design, and performance of the chart are described. Average run length comparisons between some other existing control charts and the synthetic T 2 chart are presented. They indicate that the synthetic T 2 chart outperforms Hotelling's T 2 chart and T 2 chart with supplementary runs rules.
Empirical evaluation of sufficient similarity in dose—Response for environmental risk assessment of chemical mixtures

When toxicity data are not available for a chemical mixture of concern, U.S. Environmental Protection Agency (EPA) guidelines allow risk assessment to be based on data for a surrogate mixture considered “sufficiently similar” in terms of chemical composition and component proportions. As a supplementary approach, using statistical equivalence testing logic and mixed model theory we have developed methodology to define sufficient similarity in dose—response for mixtures of many chemicals containing the same components with different ratios. Dose—response data from a mixture of 11 xenoestrogens and the endogenous hormone, 17ß-estradiol are used to illustrate the method.
Auditory Feedback for Enhanced Sense of Agency in Shared Control

There is a growing need for robots that can be remotely controlled to perform tasks of one’s own choice. However, the SoA (Sense of Agency: the sense of recognizing that the motion of an observed object is caused by oneself) is reduced because the subject of the robot motion is identified as external due to shared control. To address this issue, we aimed to suppress the decline in SoA by presenting auditory feedback that aims to blur the distinction between self and others. We performed the tracking task in a virtual environment under four different auditory feedback conditions, with varying levels of automation to manipulate the virtual robot gripper. Experimental results showed that the proposed auditory feedback suppressed the decrease in the SoA at a medium level of automation. It is suggested that our proposed auditory feedback could blur the distinction between self and others, and that the operator attributes the subject of the motion of the manipulated object to himself.
Rural Small and Medium Enterprises: Maximising the Value of Benefit Corporation Certification

This article examines challenges and opportunities some rural small and medium enterprises (SMEs) face in maximising the value of Certified Benefit Corporation status. Eight case studies provide insights into the disadvantages of becoming, and maintaining, certification, and opportunities for leveraging its full value specific to the unique needs of these types of firms. Triangulation of three repetitions of interviews with owners and employees (n = 22) over two years, publicly available web-based sources (e.g., websites and brochures), and project documents for each case were analysed. No case study could report direct financial gains from their certification. Additionally, they reported limitations to obtaining, and maintaining, the certification, unique to rural SMEs, suggesting larger and urban firms have a competitive advantage in utilising this certification. Instead, they identified hiring and retaining quality employees, a greater sense of purpose and drive, and increased trust with other local businesses as added value. The article concludes with insights for increasing the likelihood of maximising value for other similar firms and opportunities for third-party certifying bodies to better support rural SMEs in maximising the value of this certification.
New psychotropic medication use among Medicare beneficiaries with dementia after hospital discharge

Hospitalizations among people with dementia (PWD) may precipitate behavioral changes, leading to the psychotropic medication use despite adverse outcomes and limited efficacy. We sought to determine the incidence of new psychotropic medication use among community‐dwelling PWD after hospital discharge and, among new users, the proportion with prolonged use.
Nodulation and Growth Promotion of Chickpea by Mesorhizobium Isolates from Diverse Sources

The cultivation of chickpea (Cicer arietinum L.) in South Africa is dependent on the application of suitable Mesorhizobium inoculants. Therefore, we evaluated the symbiotic effectiveness of several Mesorhizobium strains with different chickpea genotypes under controlled conditions. The tested parameters included shoot dry weight (SDW), nodule fresh weight (NFW), plant height, relative symbiotic effectiveness (RSE) on the plant as well as indole acetic acid (IAA) production and phosphate solubilization on the rhizobia. Twenty-one Mesorhizobium strains and six desi chickpea genotypes were laid out in a completely randomized design (CRD) with three replicates in a glasshouse pot experiment. The factors, chickpea genotype and Mesorhizobium strain, had significant effects on the measured parameters (p < 0.001) but lacked significant interactions based on the analysis of variance (ANOVA). The light variety desi genotype outperformed the other chickpea genotypes on all tested parameters. In general, inoculation with strains LMG15046, CC1192, XAP4, XAP10, and LMG14989 performed best for all the tested parameters. All the strains were able to produce IAA and solubilize phosphate except the South African field isolates, which could not solubilize phosphate. Taken together, inoculation with compatible Mesorhizobium promoted chickpea growth. This is the first study to report on chickpea-compatible Mesorhizobium strains isolated from uninoculated South African soils with no history of chickpea production; although, their plant growth promotion ability was poorer compared to some of the globally sourced strains. Since this study was conducted under controlled conditions, we recommend field studies to assess the performance of the five highlighted strains under environmental conditions in South Africa.
EFEKTIFITAS EDUKASI DENGAN MEDIA BERBASIS AUDIO VISUAL TERHADAP PENGETAHUAN KELUARGA TENTANG ROM PADA PASIEN STROKE: LITERATURE REVIEW

ABSTRAK Latar Belakang : Permasalahan yang biasa terjadi pada pasien pasca stroke akan mengalami kelumpuhan pada sebagian tubuh, kekakuan atau kelemahan pada otot. Kurangnya pengetahuan keluarga terkait bagaimana melakukan mobilisi pada pasien akan menjadi hambatan dalam proses perawatan. Keluarga memiliki peran penting dalam perawatan pasien, maka penting untuk meningkatkan pengetahuan keluarga dengan memberikan edukasi. Yaitu Edukasi Dengan Media Berbasis Audio Visual Terhadap Pengetahuan Keluarga Tentang Rom (Range Of Motion) Tujuan : Mengetahui Efektifitas Edukasi Dengan Media Berbasis Audiovisual Terhadap Pengetahuan Keluarga Tentang ROM (Range Of Motion) Pada Pasien Stroke Metode :Penelitian ini menggunakan Metode Literature Review. Sumber literatur yang digunakan dalam penelitian ini ditelusuri melalui Google Scholar, Portal Garuda, dan Biomed Central. Hasil : Dari 10 lieratur didapatkan lama waktu dari media audiovisual itu dapat diberikan kepada keluarga untuk menilai seberapa efektif edukasi yang diberikan, terdapat juga keutamaan dari media audiovisual yang dianggap bagus dan cukup efektif untuk digunakan sebagai media edukasi guna meningkatkan pengetahuan keluarga. Kesimpulan : Penggunaan media Audiovisual sebagai salah satu inovasi terbaru dalam pelaksanaan pemberian edukasi yang dapat digunakan oleh tenaga kesehatan dinilai sangat efektif untuk meningkatkan pengetahuan, terutama pengetathuan keluarga tentang kesehatan, salah satunya pengetahuan keluarga tentang cara melakukan latihan ROM. Kata kunci : Audiovisual, Edukasi, Pengetahuan
Accurate Position Tracking Control of SMAAs Based on Low-Complexity Self-Sensing Model and Compound Control Strategy

Shape memory alloy actuators (SMAAs) exhibit high strain, high power-to-weight ratio, and self-sensing ability, which are promising characteristics for application in micro-actuator systems. However, the complex self-sensing and nonlinear hysteresis characteristics of shape memory alloy (SMA) seriously affect the position tracking accuracy of SMAAs. In order to realize the accurate position tracking of the SMAAs without sensors, this article proposes a low-complexity self-sensing of modeling methods, which does not require complex mechanical structure, specific prestress, and complex mathematical models. Furthermore, a compound control strategy of generalized Prandtl–Ishlinskii (GPI) inverse model and fuzzy-proportional–integral derivative (PID) was presented to compensate the nonlinear hysteresis and time-varying characteristics of SMAAs. First, macroscopic and microcosmic characteristics of SMA were analyzed to explain the negative effect of the rhombohedral ( ${R}$ ) phase on the self-sensing characteristics of SMA. Second, a NiTi-based SMA wire without ${R}$ phase was selected as a self-sensing modeling object by comparative evaluation experiments, which has similar linear self-sensing properties under various pretension force conditions, a self-sensing model containing only quadratic polynomials is constructed by an offline identification. Third, a fuzzy-PID controller is designed based on the transfer function obtained from the SMAA’s system identification, further, a nonlinear hysteresis feedforward compensation controller is designed based on the GPI model. Finally, comparative experiments with the compound controller and fuzzy-PID controller for multistep and sinusoidal position tracking responses were performed, and the experimental results show that the proposed compound controller has a faster response and higher control accuracy in position tracking control.
The Impact of Digital Leadership on Teachers’ Acceptance and Use of Digital Technologies

Teachers’ lack of digital competence causes learning not to be carried out optimally. Thus, the challenge for teachers is getting tougher since, in this digital era, technology mastery plays a significant role in creating quality education. Considering the importance of technology and the role of leadership in education, this study aimed to analyses the impact of digital leadership on teachers' acceptance and use of digital technologies. This research was done involving 27 elementary schools in one city. Six teachers from each school were randomly selected to be the study samples. So, there were 162 teachers involved in the research samples. The research data were collected by distributing questionnaires to measure digital leadership and questionnaires to measure teachers' acceptance and use of digital technology. The collected data were analyzed using simple regression analysis with the help of SPSS 20 for windows. The study showed that the significance of the regression direction was 8,581 with a significance (sig.) of 0.000, which indicates that the regression direction is significant. Therefore, it can be concluded that digital leadership significantly influences teachers’ acceptance and use of digital technology. Since digital leadership is needed to increase education quality, it is suggested that the school principals enhance their digital leadership. Since this research was only limited to two variables, it is necessary to do further research involving more independent variables, considering the various factors that may affect the acceptance and use of technology.
Low-field colossal magnetoresistance in manganite tunnel spin valves

We report on the magnetoresistive properties of all-oxide tunnel spin valves in which electrodes of mixed valence manganites (La0.7Sr0.3MnO3) are separated by a thin insulating layer. The structures were prepared by Pulsed Laser Deposition and several tunnel barriers were used including PrBa2(CuGa)3O7, CeO2 and SrTiO3. The latter gives the largest magnetoresistive effect where the trilayer's resistance is increased by a factor of 5.5 at 50 Gauss and 4.2 K. Analysis of the temperature variation of the barrier resistivity shows that the dramatic loss of the magnetoresistive effect above 150 K is due to a reduced oxygen content of the interface between La0.7Sr0. 3MnO3 and SrTiO3. Solving this problem should lead to similar results at room temperature.
Meson photoproduction at GRAAL

Precise measurements of the differential cross section and the beam polarization asymmetry E have been obtained by the GRAAL collaboration for the (gamma) over right arrow + p --> n + p and the (gamma) over right arrow + p --> pi(0) + p reactions, at incoming photon energies up to 1.48 GeV. Preliminary data are presented and compared with different theoretical calculations. First measurements of the E observable are also available for the (gamma) over right arrow + p --> K(+)Lambda reaction channel.
Relation between measures of speech‐in‐noise performance and measures of efferent activity

Individual differences in auditory perceptual abilities in noise are well documented but the factors causing such variability are unclear. The purpose of this study was to determine if individual differences in responses measured from the auditory efferent system were correlated to individual variations in speech‐in‐noise performance. The relation between behavioral performance on three speech‐in‐noise tasks and two objective measures of the efferent auditory system were examined in thirty normal‐hearing, young adults. Two of the speech‐in‐noise tasks measured an acceptable noise level, the maximum level of speech‐babble noise that a subject is willing to accept while listening to a story. For these, the acceptable noise level was evaluated using both an ipsilateral (story and noise in same ear) and a contralateral (story and noise in opposite ears) paradigm. The third speech‐in‐noise task evaluated speech recognition using monosyllabic words presented in competing speech babble. Auditory efferent activit.
Observation of the photoinduced anomalous Hall effect spectra in insulating InGaAs/AlGaAs quantum wells at room temperature

The photocurrent spectra of inter-band photoinduced anomalous Hall effect (AHE) in insulating InGaAs/AlGaAs quantum wells have been observed at room temperature. The AHE current changes linearly with longitudinal electric fields. The anomalous Hall conductivity corresponding to excitonic state 1HH-1E (the first valence subband of heavy hole to the first conduction) has the same sign with that of excitonic state 1LH-1E, while the sign inverses when the photon energy is larger than the excitonic state 1LH-1E. The reason for this interesting phenomenon has been discussed. Due to the strong Rashba spin-orbit coupling in this perfect crystal, the photoinduced AHE is supposed to be intrinsic.
Coevolution of width and sinuosity in meandering rivers

Abstract This research implements a recently proposed framework for meander migration, in order to explore the coevolution of planform and channel width in a freely meandering river. In the model described here, width evolution is coupled to channel migration through two submodels, one describing bank erosion and the other describing bank deposition. Bank erosion is modelled as erosion of purely non-cohesive bank material damped by natural armouring due to basal slump blocks, and bank deposition is modelled in terms of a flow-dependent rate of vegetal encroachment. While these two submodels are specified independently, the two banks interact through the medium of the intervening channel; the morphodynamics of which is described by a fully nonlinear depth-averaged morphodynamics model. Since both banks are allowed to migrate independently, channel width is free to vary locally as a result of differential bank migration. Through a series of numerical runs, we demonstrate coevolution of local curvature, width and streamwise slope as the channel migrates over time. The correlation between the local curvature, width and bed elevation is characterized, and the nature of this relationship is explored by varying the governing parameters. The results show that, by varying a parameter representing the ratio between a reference bank erosion rate and a reference bank deposition rate, the model is able to reproduce the broad range of river width–curvature correlations observed in nature. This research represents a step towards providing general metrics for predicting width variation patterns in river systems.
Bioprinted Membranes for Corneal Tissue Engineering: A Review

Corneal transplantation is considered a convenient strategy for various types of corneal disease needs. Even though it has been applied as a suitable solution for most corneal disorders, patients still face several issues due to a lack of healthy donor corneas, and rejection is another unknown risk of corneal transplant tissue. Corneal tissue engineering (CTE) has gained significant consideration as an efficient approach to developing tissue-engineered scaffolds for corneal healing and regeneration. Several approaches are tested to develop a substrate with equal transmittance and mechanical properties to improve the regeneration of cornea tissue. In this regard, bioprinted scaffolds have recently received sufficient attention in simulating corneal structure, owing to their spectacular spatial control which produces a three-cell-loaded-dimensional corneal structure. In this review, the anatomy and function of different layers of corneal tissue are highlighted, and then the potential of the 3D bioprinting technique for promoting corneal regeneration is also discussed.
Is Instillational Topical Negative Pressure Wound Therapy in Peri-Prosthetic Infections of the Breast Effective? A Pilot Study

Peri-prosthetic breast infections pose a risk of severe complications after breast implant surgery. The need to remove the breast implant, control the infection and perform additional surgical procedures are the consequences. Reimplantation of an alloplastic implant is only appropriate after an infection-free interval. In this retrospective cohort study, we investigated the effectiveness of negative pressure wound treatment with instillation and dwell time (NPWTi-d) on peri-prosthetic breast infections in combination with implant removal and antibiotic therapy. Twelve patients treated with NPWTi-d due to breast implant infection were included in the study. The bacterial burden was analyzed using wound swabs before and after NPWTi-d. Additionally, laboratory values were determined before NPWTi-d and immediately before wound closure. A total of 13 peri-prosthetic breast infections in 12 patients were treated using implant removal and NPWTi-d. In 76.9% (n = 10) of the cases, the patients had undergone alloplastic breast reconstruction following cancer-related mastectomy, whereas 23.1% (n = 3) of the patients had undergone breast augmentation for cosmetic reasons. The bacterial burden in the breast pocket decreased statistically significant after implant removal and NPWTi-d. No shift from Gram-positive to Gram-negative bacteria was observed. Inflammatory markers rapidly decreased following treatment. NPWTi-d had a positive impact on the healing process after peri-prosthetic breast infections, leading to a decrease in bacterial burden within the wounds and contributing to uneventful healing. Therefore, secondary reimplantation of breast prostheses might be positively influenced when compared to conventional implant removal and simple secondary closure. Further studies are required to conclusively establish the beneficial long-term effects of using NPWTi-d for the treatment of peri-prosthetic breast infections.