Miracle-dz/UniFAR-FTUs huggingface dataset:
Meteorosensitivity as a mediator between affective temperaments and insomnia among women

participants and procedure For this study, 446 healthy women were recruited from a nonclinical population via an online recruitment platform. The participants’ ages ranged from 18 to 65 years (M = 29.67, SD = 8.39). The Polish version of the Temperament Evaluation of Memphis, Pisa, Paris and San Diego Autoquestionnaire was used to assess affective temperaments (depressive, cyclothymic, hyperthymic, irritable and anxious). Meteorosensitivity was assessed through the Polish adaptation of the METEO-Q questionnaire. Insomnia was evaluated by the Athens Insomnia Scale.
Residency and movement patterns of Cuvier’s beaked whales Ziphius cavirostris off Cape Hatteras, North Carolina, USA

Cuvier’s beaked whales Ziphius cavirostris are wide-ranging, deep-diving cetaceans that are particularly sensitive to anthropogenic noise. Current stock assessments assume a single population in the western North Atlantic Ocean, but knowledge of the residency patterns and distribution of the species is currently lacking in the region. Here we describe the spatial ecology of 20 Cuvier’s beaked whales equipped with satellite-linked tags off Cape Hatteras, North Carolina, USA, between 2014 and 2017. We applied a hierarchical switching state-space model to filter location estimates and define behavioral states of area-restricted search (ARS) and transit. We used kernel density estimation to identify high use areas, and net squared displacement analyses to assess residency. The vast majority (96%) of locations were classified as ARS behavior, suggesting that tagged whales allocated much of their time to foraging. Maximum net displacement had a sample median of 50 km, and 81% of individual whales were classified as demonstrating a resident, or ‘home range,’ movement pattern. Overall, our research indicates a localized population of Cuvier’s beaked whales occupying the area off Cape Hatteras. The tagged animals demonstrated a small, defined core use area and exhibited little displacement from the region. These patterns of movement and spatial use can inform future conservation and management of this species, which is vulnerable to anthropogenic disturbances caused by several sources, including mid-frequency active sonar and seismic exploration.
Unveiling Informational Properties of the Chen-Ouillon-Sornette Seismo-Electrical Model

The seismo-electrical coupling is critical to understand the mechanism of geoelectrical precursors to earthquakes. A novel seismo-electrical model, called Chen–Ouillon–Sornette (COS) model, has been developed by combining the Burridge–Knopoff spring-block system with the mechanisms of stress-activated charge carriers (i.e., electrons and holes) and pressure-stimulated currents. Such a model, thus, can simulate fracture-induced electrical signals at a laboratory scale or earthquake-related geoelectrical signals at a geological scale. In this study, by using information measures of time series analysis, we attempt to understand the influence of diverse electrical conditions on the characteristics of the simulated electrical signals with the COS model. We employ the Fisher–Shannon method to investigate the temporal dynamics of the COS model. The result showed that the electrical parameters of the COS model, particularly for the capacitance and inductance, affect the levels of the order/disorder in the electrical time series. Compared to the field observations, we infer that the underground electrical condition has become larger capacitance or smaller inductance in seismogenic processes. Accordingly, this study may provide a better understanding of the mechanical–electrical coupling of the earth’s crust.
Does Customer Loyalty Perception Changed After They Moved to Sharia? A Descriptive Exploratory Study on Sharia Banks in Padang

This study aims to answer an important question whether there is a difference of customer loyalty perceptions after becoming a customer in Sharia Bank. Islamic banking system has different characteristics from conventional banks, where they operate based on the essence of syar'i principle that is "profit sharing" as mutual benefit for customers and banks. The sample of this research is 59 people in responding to the tolerance limit of minimum sample size of 30 samples. In understanding the difference of respondent's loyalty perception, this study uses normality and homogeneity assumption approach by using t-test. Statistically, the results of this study indicate that there is no significant difference from customers who decide to be loyal or not as customers in the sharia banks they choose.
Adiabatic approximation and nonadiabatic corrections in the discrete variable representation: Highly excited vibrational states of triatomic molecules

An adiabatic approximation for the calculation of excited vibrational (J=0) levels of triatomic molecules is developed using the discrete variable representation (DVR). The DVR is in the large amplitude bending motion coordinate which is taken to be the adiabatic degree of freedom. We show that the adiabatic treatment in the DVR has some major advantages over the usual formulation in the finite basis representation (FBR), namely improved accuracy and broader range of applicability. An adiabatic rearrangement of the full Hamiltonian matrix in the DVR‐ray eigenvector (REV) basis is defined, such that the diagonal blocks provide the rigorous matrix representation of the adiabatic bend Hamiltonian; their diagonalization yields bending level progressions corresponding to various stretching states. The off‐diagonal blocks contain all nonadiabatic coupling matrix elements. The nonadiabatic corrections to the adiabatic vibrational levels are readily taken into account via second‐order perturbation theory. One uni.
A Probabilistic Model for Driving-Style-Recognition-Enabled Driver Steering Behaviors

This article presents a framework to determine driving style and design a driver steering model considering driver characteristics. First, principal component analysis (PCA) and $K$ -means clustering are utilized to classify 30 participants into cautious, moderate, and aggressive drivers. Subsequently, a generic steering model is established based on the model predictive control method. Thereafter, the maximum lateral acceleration is extracted as a crucial indicator to represent driver characteristics, and it is calibrated through probabilistic models using the dataset, which consists of the classified drivers. Besides, point estimation model and interval estimation model are leveraged to determine driving style and adjust constraints in the stochastic programming-based steering model. Finally, simulation experiments present the variations of actual output trajectories between the aggressive drivers and the cautious drivers.
CleanML: A Study for Evaluating the Impact of Data Cleaning on ML Classification Tasks

Data quality affects machine learning (ML) model performances, and data scientists spend considerable amount of time on data cleaning before model training. However, to date, there does not exist a rigorous study on how exactly cleaning affects ML — ML community usually focuses on developing ML algorithms that are robust to some particular noise types of certain distributions, while database (DB) community has been mostly studying the problem of data cleaning alone without considering how data is consumed by downstream ML analytics.We propose a CleanML study that systematically investigates the impact of data cleaning on ML classification tasks. The open-source and extensible CleanML study currently includes 14 real-world datasets with real errors, five common error types, seven different ML models, and multiple cleaning algorithms for each error type (including both commonly used algorithms in practice as well as state-of-the-art solutions in academic literature). We control the randomness in ML experiments using statistical hypothesis testing, and we also control false discovery rate in our experiments using the Benjamini-Yekutieli (BY) procedure. We analyze the results in a systematic way to derive many interesting and nontrivial observations. We also put forward multiple research directions for researchers.
Recycling of styrene polymers from shredded screen housings containing brominated flame retardants

Recycling of plastics from screen housing poly mers is considered to be helpful to fulfill the requirements of the European waste of electric and electronic equipment directive. However, brominated flame retardants (BFR) and polybrominated dioxins and furans, which are partly limited in marketable products by European and German legislation, have been identified in waste screen housings and need to be eliminated. On application to housing shredder, sink and float was investigated as sorting technology, since BFR-equipped styrene polymers exhibit higher densities compared to corres ponding non-BFR types. The feasibility of this concept was proven by database studies and density monitoring of waste screen housing. Laboratory and small-technical scale trials with different mixtures of TV-sets and PC monitor housings revealed that only 5–20% of the original bromine load remained in the target fractions, resulting in bromine levels between 0.18–1.39%. Recycled polymers from fractions rich in HIPS-based TV-set casings did not exceed given threshold limits for PBDD/F and octabromodiphenylether. They were recovered with yields of 52–63% and exhibited mostly virgin-like mechanical properties. In contrast, PC monitor housing fractions were characterized by low yield, high bromine levels in recycled products and brittle recycled polymers. Furthermore, pilot application of another separation approach, the specific swell and float technology, allowed the separation of upgraded HIPS qualities from bromine-reduced TV-set fractions. In contrast, this success has not yet been achieved with waste PC monitors. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 1262–1273, 2006
Mixed-Mode Sorption of Hydroxylated Atrazine Degradation Products to Soil: A Mechanism for Bound Residue

This study tested the hypothesis that sorption of hydroxylated atrazine degradation products (HADPs: hydroxyatrazine, HA; deethylhydroxyatrazine, DEHA; and deisopropylhydroxyatrazine, DIHA) to soils occurs by mixed-mode binding resulting from two simultaneous mechanisms: (1) cation exchange and (2) hydrophobic interaction. The objective was to use liquid chromatography and soil extraction experi ments to show that mixed-mode binding is the mechanism controlling HADP sorption to soils and is also a mechanism for bound residue. Overall, HADP binding to solid-phase extraction (SPE) sorbents occurred in the order: cation exchange ≫ octadecyl (C18) ≫ cyanopropyl. Binding to cation exchange SPE and to a high-performance liquid chromatography octyl (C8) column showed evidence for mixed-mode binding. Comparison of soil extracted by 0.5 M KH2PO4, pH 7.5, or 25% aqueous CH3CN showed that, for HA and DIHA, cation exchange was a more important binding mechanism to soils than hydrophobic interaction. Based on diffe.
In Situ Investigations of Structural Changes in Cu/ZnO Catalysts

Dynamic changes in the structure and catalytic activity of Cu/ZnO methanol synthesis catalysts have been investigated by a further developed in situ method, which combines X-ray diffraction (XRD), X-ray absorption fine structure spectroscopy (XAFS), and on-line catalytic measurements by mass spectrometry. The temperature-programmed reduction of copper was monitored both by in situ quick-EXAFS (QEXAFS) and on-line mass spectrometry. The results indicate that under typical mild reduction conditions very small copper particles (10–15 A) are formed. Upon change in the reduction potential of the methanol synthesis gas, reversible changes of the Cu–Cu coordination number are observed by EXAFS. These structural changes are accompanied by changes in the catalytic activity and the highest activities were observed after exposure to the most reducing conditions. In this state the catalyst exhibited low Cu–Cu coordination numbers. These results support the model that reversible changes in the wetting of ZnO by Cu may occur upon changes in the reaction conditions. The results also show that such dynamical changes in Cu morphology may influence the catalytic properties. All the conditions used in the above studies are less severe than those observed to result in bulk alloy formation. However, additional XAFS measurements at higher temperatures have been performed and EXAFS spectra have been simulated to address the possibility for Cu–Zn alloy formation as suggested by recent results in literature. Only under severe reduction conditions was significant alloying of copper and zinc observed in EXAFS in addition to the morphological changes. Such changes have not been seen in the Cu/SiO2 system.
Polymorphism control through a single nucleation event

Recently, we identified that the single nucleus mechanism, in which all crystals in the suspension originate from the same parent single crystal, might occur more generally than is currently recognized, even in larger volumes. This has important implications for the control of industrial crystallization processes of polymorphic compounds. In this paper, we used polymorphism as a tool to validate this single nucleus mechanism. Isonicotinamide (INA) crystallizes as form II in ethanol solutions, form I in nitromethane, and form IV in nitrobenzene solutions. The metastable form I and form IV, furthermore, only very slowly transform to the stable form II in solvent mixtures of ethanol–nitromethane and ethanol–nitrobenzene. We performed multiple crystallization experiments in solvent mixtures of ethanol–nitromethane and ethanol–nitrobenzene which all resulted in the formation of either pure form I or pure form II and either pure form II or pure form IV, respectively. In ethyl acetate, 4-hydroxyacetophenone (4HA.
Spectrophotometric determination of Clinidipine, Efavirenz,
Prazosin drugs by using Folin-Ciocalteu Reagent

For the determination of three drugs namely Cilnidipine (CDP), Efavirenz (EVZ), Prazosin (PRZ), a simple, fast, selective and accurate spectrophotometric method has been outlined. This method is based on the development of blue coloured chromogen due to reduction of tungstate and/ or molybdate in Folin-Ciocalteu reagent by Drug in alkaline medium. The coloured species has an absorption maximum at 730 nm, 745 nm and 770 nm and the Beer’s law obeys over the concentration range of 12-72 μg/mL, 10-70 μg/mL, 3-21 μg/mL respectively for the drugs CDP, EVZ, PRZ. This method has been validated according to ICH guidelines and applied to the analysis of pharmaceuticals.
Prediction of Reading and Writing in Elementary Education through Early Childhood Education

Abstract The study investigated the predictive role of executive functions, language, initial reading and writing abilities, teacher’s perception of the students’ difficulties and family characteristics, evaluated in Early Childhood Education (ECE) (Jardim I and Jardim II), in relation to reading and writing performance in the first year of Elementary Education. A total of 71 children were monitored in a longitudinal manner from ECE up to the first year, and evaluated in Oral Language (OL), Executive Functions (EF), initial Reading and Writing skills in ECE and, in the first year, evaluated by means of Reading and Writing tests. Parents provided information on socioeconomic status (SES) and teachers indicated children with difficulties. After the data imputation process, regression tree analysis showed that OL skills and initials skills of reading and writing in ECE explained a mean of 43% of the reading variability in the first year. For writing, the models also included performances in EF, income, father’s age and indication of difficulty by the teacher in ECE, explaining a mean of 78% of the variability in writing in the first year. The results allowed identifying abilities and variables that can be considered precursors of subsequent performances in Elementary Education, providing guidance for actions of early identification and intervention.
A Monitor Calibrator as a Portable Tool for Determination of Luminescent Compounds

A monitor calibrator has been tested as a portable, available, and cost-effective tool for the detection of luminescence. Prospects of this device as an all-sufficient analog of an analytical fluorometer have been outlined. Its ability to determine luminescent compounds was demonstrated by the example of rhodamine 3B and fluorescein. The determination is based on simultaneous impulse irradiation of a fluorescent sample with the incorporated continuous-spectrum light emitter in the visible and near UV ranges and registration of the luminescence. The appropriate cuvettes for the analysis and the device sealing film were chosen. The lowest relative detection limit for the developed approach was <inline-formula> <tex-math notation="LaTeX">$0.03~\mu $ </tex-math></inline-formula>mol L<sup>−1</sup> for rhodamine 3B and <inline-formula> <tex-math notation="LaTeX">$0.01~\mu $ </tex-math></inline-formula>mol L<sup>−1</sup> for fluorescein; the lowest absolute detection limits were 0.01 and 0.002 nmol for rhodamine 3B and fluorescein, respectively. Using the proposed approach, it was possible to determine the luminescent compounds in tap water.
An Accurate Zero-Current-Switching Circuit for Ultra-Low-Voltage Boost Converters

The use of digital schemes to indirectly detect the zero-current crossing and perform the zero-current switching in ultra-low-voltage inductive boost converters has been prevalent in recent developments. However, design guidelines for such digital schemes are still lacking. In this brief, an efficient zero-current switching scheme for ultra-low-voltage boost converters is proposed and implemented in standard CMOS 130 nm technology. Instrumental to our design was the introduction of the proper time delay for sensing the direction of the inductor current on the opening of the high-side switch. The correct delay time as a function of the circuit parameters keeps the switching as close as possible to the zero-current crossing. Owing to an efficient zero-current-switching scheme, the fabricated prototype provides end-to-end efficiency of 76% for a voltage converter having an input voltage as low as 20 mV.
Impact of Current Harmonic Injection on Performance of Multi-Phase Synchronous Reluctance Machines

This paper combines the use of multi-phase configurations and current harmonic injection methods to achieve significantly improved performance for doubly salient synchronous reluctance machines (DS-SRMs). In order to understand the torque production mechanism of multi-phase DS-SRMs with current harmonic injection, some general analytical torque models have been developed. The models are based on Fourier Series analysis of self- and mutual-inductances. It has been established that with current harmonic injection, the torque ripple of both 5-phase and 6-phase DS-SRMs can be significantly reduced and the average torque can be enhanced. It contrast, harmonic injection always has a detrimental impact on 4-phase machines. The investigations of losses and dynamic performance with current harmonic injection for multi-phase machine have also been carried out and demonstrated that the proposed method can improve the efficiency in constant torque region and maintain comparable performance to fundamental current supply in the flux weakening region. Experimental validation based on single layer, 6-phase, DS-SRM has been performed.
Kinetic theory of shear coagulation for particles in a viscous fluid.

The coagulation of colloidal particles in a simple shear flow of a viscous fluid is considered. The coagulation rate between unequal spherical particles is calculated by use of approximate trajectory equations, and a kinetic equation of shear coagulation is proposed in which the hydrodynamic interaction between particles is taken into account. It is found that the coagulation rate decreases rapidly with increase of the ratio of particles radius ai/aj and a dimensionless quantity 6πμa3ijγ/A. Comparison between the present theory and the classical Smoluchowski theory indicates that the Smoluchowski theory is applicable to limited coagulation systems and that it overestimates the coagulation rate considerably when applied to common aqueous dispersions. It is also found that the change of particle concentration is conveniently estimated by a kinetic equation in which the coagulation rate between unequal particles is approximated by that between equal spheres.
Threat-Event Detection for Distributed Networks Based on Spatiotemporal Markov Random Field

Distributed threat-events are one of the main challenges faced in computer networks. Although a lot of research has been conducted for these issues, the situation has not been significantly improved. Different from existing victim-centric approaches, in this article we propose a new network-centric approach for the detection of distributed threat-events. The distributed network is treated as a holistic system that consists of spatially interconnected network elements. Network events are detected by the dynamic behavior analysis of the distributed networks. We develop a model consisting of two-layer random fields to describe the time-varying traffic forwarding behavior of the distributed networks. The bottom layer describes the interaction and influence of the network elements under the action of network events. Markovianity is adopted to characterize the spatiotemporal context of each network element’s behavior patterns. The top layer describes each network element’s traffic features driven by the underlying behavior patterns. A Gaussian mixture model is used to capture the statistical features of the network traffic for each behavior pattern. We derive algorithms for parameter estimation and event detection. Numerical experiments using real datasets and different network scenarios are presented to validate the proposed approach. Performance-related issues and comparison with related works are discussed.
Analytical Scaling Model for Hydrocarbon Emissions From Fuel Absorption in Oil Layers in Spark Ignition Engines

ABSTRACT Cyclic absorption and desorption of fuel by the lubricating oil layer on the cylinder wall has been suggested as a significant source of unburned hydrocarbon emissions from spark ignition engines. A simple analytical model describing this dynamic process as unsteady one-dimensional cyclic absorption and desorption of a dilute amount of gas in a thin liquid layer on an impervious wall has been developed. A general solution for a periodic variation in fuel concentration in the gas phase is obtained, and three distinct limits for the net absorption of hydrocarbons are shown to exist depending on the relative time scales for the hydrocarbon concentration forcing function, the diffusion in the liquid and in the gas phase. A general criterion for when gas-phase convection species transfer resistance must be taken into account is also derived. Focus was given to the relative importance of the gas-phase and liquid-phase diffusion rates, and the scaling of the hydrocarbon absorption phenomena with realist.