Miracle-dz/UniFAR-FTUs huggingface dataset:
Distributed Optimal and Self-Tuning Filters Based on Compressed Data for Networked Stochastic Uncertain Systems with Deception Attacks

In this study, distributed security estimation problems for networked stochastic uncertain systems subject to stochastic deception attacks are investigated. In sensor networks, the measurement data of sensor nodes may be attacked maliciously in the process of data exchange between sensors. When the attack rates and noise variances for the stochastic deception attack signals are known, many measurement data received from neighbour nodes are compressed by a weighted measurement fusion algorithm based on the least-squares method at each sensor node. A distributed optimal filter in the linear minimum variance criterion is presented based on compressed measurement data. It has the same estimation accuracy as and lower computational cost than that based on uncompressed measurement data. When the attack rates and noise variances of the stochastic deception attack signals are unknown, a correlation function method is employed to identify them. Then, a distributed self-tuning filter is obtained by substituting the identified results into the distributed optimal filtering algorithm. The convergence of the presented algorithms is analyzed. A simulation example verifies the effectiveness of the proposed algorithms.
Comprehensive evaluation of structural geometrical nonlinear solution techniques Part I: Formulation and characteristics of the methods

This paper consists of two parts, which broadly examines solution techniques abilities for the structures with geometrical nonlinear behavior. In part I of the article, formulations of several well-known approaches will be presented. These solution strategies include different groups, such as: residual load minimization, normal plane, updated normal plane, cylindrical arc length, work control, residual displacement minimization, generalized displacement control, modified normal flow, and three-parameter ellipsoidal, hyperbolic, and polynomial schemes. For better understanding and easier application of the solution techniques, a consistent mathematical notation is employed in all formulations for correction and predictor steps. Moreover, other features of these approaches and their algorithms will be investigated. Common methods of determining the amount and sign of load factor increment in the predictor step and choosing the correct root in predictor and corrector step will be reviewed. The way that these features are determined is very important for tracing of the structural equilibrium path. In the second part of article, robustness and efficiency of the solution schemes will be comprehensively evaluated by performing numerical analyses.
Magnetic interchange instability of accretion disks

A study is made of the nonlinear evolution of the magnetic interchange or buoyancy instability of a differentially rotating disk threaded by an ordered vertical magnetic field. As a model for the disk we consider a two-dimensional ideal fluid in the equatorial plane of a central mass in the corotating frame of reference. We use a local approximation of a shearing sheet and study the evolution numerically by solving the equations of ideal magnetohydrodynamics.
Clinical Landscape and Rate of Exposure to Ilheus Virus: Insights from Systematic Review and Meta-Analysis

Ilheus fever is a mosquito-borne, poorly known tropical disease. We aimed to report the pooled rate of exposure to the Ilheus virus (ILHV) and clinical outcomes of infection to determine the epidemiological patterns of ILHV. We conducted a meta-analysis of 37 studies (n = 17,722 individuals) from Latin America. The common clinical characteristics of ILHV infection were fever (82.3%), headache (52.9%), and myalgia (52.9%). Encephalitis complicated the course of the infection in 29.4% cases. Monotypic serological reactions detected a pooled rate of exposure of 2% to ILHV (95% CI: 1–2). Studies were mainly conducted in Brazil, with a pooled proportion of ILHV positivity of 8% (95% CI: 3–14). Males (12%) had higher rates of seropositivity than females (7%) and had high chances of ILHV infection (OR: 1.7, 95% CI: 1.2–2.5). Seropositivity increased with age, from 2% (95% CI: 2–3) among people aged 0–14 years to 8% (95% CI: 6–10) among people aged 15–64 years. Our analysis indicated a low and relatively constant burden of ILHV in Latin America. More research is needed to evaluate and innovate serological assays for ILHV to better estimate the burden and dynamics of epidemiological changes in ILHV infection in different regions.
Hydrogen sorption in defective hexagonal BN sheets and BN nanotubes

We perform ab initio simulations on the interaction of molecular hydrogen with the native and substitutional defects of single hexagonal boron-nitride sheets and small-diameter (8,0) nanotubes. We find that the adsorption of molecular hydrogen on both types of structure is endothermic with respect to dissociation, with the small-diameter nanotube possessing the smaller barrier. Although chemisorption along the tube axis is energetically preferred, the barrier for dissociation is lower for chemisorption across the tube axis, implying that chemisorbed hydrogen can be kinetically trapped in a higher energy state. Dopants that maximize the localization of the highest occupied molecular orbital and lowest unoccupied molecular orbital states maximize hydrogen binding energies. Carbon dopants do not enhance ${\mathrm{H}}_{2}$ binding in contrast to the literature, whereas silicon dopants for nitrogen provide ${\mathrm{H}}_{2}$ binding energies of $0.8\phantom{\rule{0.3em}{0ex}}\mathrm{eV}$, at the upper end of the range required to meet DOE targets for hydrogen storage. The formation energy of most defects is reduced with increasing curvature except for the carbon substitutionals. Vacancies reduce the barriers for ${\mathrm{H}}_{2}$ dissociation for the planar sheets but not for strongly curved nanotubes. The surface stress induced by nanotube curvature boosts the hydrogen storage capabilities of vacancies compared to the sheet, with the nitrogen vacancy chemisorbing 4H and allowing a ${\mathrm{H}}_{2}$ molecule to enter the interior of the tube. The hydrogen binding properties of boron-nitride systems are strongly dependent on the defects and dopants present. Pretreating of these systems so as to partially remove nitrogen should enhance ${\mathrm{H}}_{2}$ adsorption properties.
Electron impact ionization of nickel multiply-charged ions

Absolute cross-section measurements are reported for electron impact ionization of Ni12+ and Ni14+ in an energy range from threshold to about 5.5 keV. For single ionization, data show that the first observed threshold corresponds to the metastable state [Ne]3s(2)3p(4) (1)So which is located 12 eV above the ground state. Excitation-autoionization is seen to play a dominant role for this reaction in the whole energy range. Double ionization is seen to be dominated by L-shell ionization followed by total autoionization. For Ni12+, triple ionization is found to be two orders of magnitude lower than double ionization and is attributed to direct ionization only.
Nonparametric Estimation of Conditional CDF and Quantile Functions With Mixed Categorical and Continuous Data

We propose a new nonparametric conditional cumulative distribution function kernel estimator that admits a mix of discrete and categorical data along with an associated nonparametric conditional quantile estimator. Bandwidth selection for kernel quantile regression remains an open topic of research. We employ a conditional probability density function-based bandwidth selector proposed by Hall, Racine, and Li that can automatically remove irrelevant variables and has impressive performance in this setting. We provide theoretical underpinnings including rates of convergence and limiting distributions. Simulations demonstrate that this approach performs quite well relative to its peers; two illustrative examples serve to underscore its value in applied settings.
Efficient CP-ABE Scheme Resistant to Key Leakage for Secure Cloud-Fog Computing

With the evolution of the Internet, people’s lives are growing increasingly intelligent, and massive amounts of data are also generated. The combination of cloud computing and fog computing can store and process it efficiently. However, a new and urgent challenge has emerged about how to ensure that data in cloud and fog nodes are accessed securely. In order to address this issue, we propose an efficient anti-key leakage CP-ABE (EAL-CP-ABE) scheme based on cloud-fog computing. In our scheme, we achieve the identity tracing of the authorized user who leaked the private key by means of white-box tracing and the maximum number of user accesses. Meanwhile, we design a reward and punishment mechanism which rewards those with a good reputation and revokes authorized users who have exceeded the access limit or sold private keys to further reduce the possibility of key leakage. Due to limited local resources, we use fog nodes to achieve outsourced decryption of ciphertext. In addition, the detailed security analysis is provided to prove that the EAL-CP-ABE scheme is IND-CPA secure and traceable based on the hardness assumptions. Finally, we demonstrate that the EAL-CP-ABE scheme is efficient through the performance analysis.
Advances in green solvents for production of polysaccharide-based packaging films: Insights of ionic liquids and deep eutectic solvents.

The problems with plastic materials and the good film-forming properties of polysaccharides motivated research in the development of polysaccharide-based films. In the last 5 years, there has been an explosion of publications on using green solvents, including ionic liquids (ILs), and deep eutectic solvents (DESs) as candidates to substitute the conventional solvents/plasticizers for preparations of desired polysaccharide-based films. This review summarizes related properties and recovery of ILs and DESs, a series of green preparation strategies (including pretreatment solvents/reaction media, ILs/DESs as components, extraction solvents of bioactive compounds added into films), and inherent properties of polysaccharide-based films with/without ILs and DESs. Major reported advantages of these new solvents are high dissolving capacity of certain ILs/DESs for polysaccharides (i.e., up to 30 wt% for cellulose) and better plasticizing ability than traditional plasticizers. In addition, they frequently display intrinsic antioxidant and antibacterial activities that facilitate ILs/DESs applications in the processing of polysaccharide-based films (especially active food packaging films). ILs/DESs in the film could also be further recycled by water or ethanol/methanol treatment followed by drying/evaporation. One particularly promising approach is to use bioactive cholinium-based ILs and DESs with good safety and plasticizing ability to improve the functional properties of prepared films. Whole extracts by ILs/DESs from various byproducts can also be directly used in films without separation/polishing of compounds from the extracting agents. Scaling-up, including costs and environmental footprint, as well as the safety and applications in real foods of polysaccharide-based film with ILs/DESs (extracts) deserves more studies.
Design and analysis of multisegment dielectric resonator antennas

The multisegment dielectric resonator antenna (SDRA) has previously been developed to significantly enhance the coupling to a microstrip line. The MSDRA greatly facilitates the integration with a printed feed distribution network for use in a large array environment. The thickness and permittivity of the dielectric insert of the MSDRA can be adjusted to match the element impedance to that of the feed line. A detailed study of the effects of varying the dielectric insert parameters was carried out and useful guidelines are presented for the design of MSDRAs.
LQM10, a guanylhydrazone derivative, reduces nociceptive and inflammatory responses in mice

In the present study, we examined the antinociceptive and anti‐inflammatory activities of a guanylhydrazone derivative, (E)‐(3,5‐di‐tert‐butyl‐4‐hydroxybenzylidene)‐2‐guanylhydrazone hydrochloride (LQM10), in mice. The antinociceptive effect was determined by assessing behavioural responses in different pain models, while anti‐inflammatory activity was examined in carrageenan‐induced pleurisy. Intraperitoneal LQM10 administration reduced the acetic acid‐induced nociceptive behaviour, a phenomenon that was unaltered by pretreatment with yohimbine, atropine, naloxone or glibenclamide. In the formalin assay, LQM10 reduced nociceptive behaviour only in the second phase, indicating an inhibitory effect on inflammatory pain. LQM10 did not alter the pain latency in the hot plate assay and did not impact the locomotor activity of mice in the rotarod assay. In the carrageenan‐induced pleurisy assay, LQM10 treatment inhibited critical events involved in inflammatory responses, namely, leucocyte recruitment, plasma leakage and increased inflammatory mediators (tumour necrosis factor Like Properties of Chalchones and Flavonoid Derivatives [TNF]‐α and interleukin [IL]‐1β) in the pleural exudate. Overall, these results indicate that LQM10 exhibits antinociceptive effects associated with peripheral mechanisms and anti‐inflammatory activity mediated via a reduction in leucocyte migration and proinflammatory mediators, rendering this compound a promising candidate for treating pain and inflammatory process.
Bibliometric analysis of amebiasis research

Aim: Amebiasis is a disease caused by protozoon Entamoeba histolytica, that results in amoebic dysentery. While intestinal parasites are the third leading cause of death, especially in developing countries, it has been of global concern. Bibliometric methods have been used in the parasitology discipline for more than 30 years, however there is not any bibliometric study on amebiasis in the literature. Our aim was to analyse the published literature on amebiasis by bibliometric methods. Material and methods: A systematic evaluation of the literature using the Scopus database was made from inception to 2021. The search terms ‘amebiasis’, ‘Entamoeba’, ‘Entamoeba histolytica’, and ‘amoebic dysentery’ were used. The authors, publication year, title, publishing country/journal/institution, title, keywords, and citation numbers were acquired for each article. Descriptive data analysis was conducted via Microsoft Excel 2010 and Scopus database’s graphics were used. Results: Among 7,140 articles, 18.9 % of them were published open access, and 72.75 % of them were in the English language. Most of the articles were from the area of medicine. The USA, Mexico, and India were the top leading countries. The number of publications did not fall below 50 per year since 1950. There was an increasing number of citations on amebiasis research recently. Conclusion: Amebiasis is a global concern as one of the leading infectious causes of mortality in developing countries. Bibliometric analysis has shown the growing attraction to the amebiasis research, so it will continue to be global public health issue. Key words: amebiasis, bibliometric analysis, Entamoeba histolytica, bibliometrics
Some Common Ingredients for Heavy Orographic Rainfall

Abstract The purpose of this paper is to synthesize some common synoptic and mesoscale environments conducive to heavy orographic rainfall. Previous studies of U.S. and Alpine cases and new analyses of some Alpine and east Asian cases have shown the following common synoptic and mesoscale environments are conducive to heavy orographic rainfall: 1) a conditionally or potentially unstable airstream impinging on the mountains, 2) a very moist low-level jet (LLJ), 3) a steep mountain, and 4) a quasi-stationary synoptic system to slow the convective system over the threat area. A deep short-wave trough is found to approach the threat area in the U.S. and European cases, but is not found in the east Asian cases. On the other hand, a high convective available potential energy (CAPE) value is observed in east Asian cases, but is not consistently observed in the U.S. and European cases. The enhancement of low-level upward motion and the increase of instability below the trough by the approaching deep short-wave tr.
Biserial Weights: A New Approach to Test Item Option Weighting

Option weighting is an alternative to increasing test length as a means of improving the reliability of a test. The effects on test reliability of option weighting procedures, including two procedures not previously reported, were compared in two empiri cal studies using four independent sets of items. In all cases Guttman weights and Biserial weights (based on the Brogden Biserial or Cleman's Lambda coefficient) were superior to Number Right and Correction for Guessing weights. Overall, Biserial weights appeared to be superior to Gutt man weights.
Gender Differences in Turkish Primary Students' Images of Astronomical Scientists: A Preliminary Study with 21st Century Style

This study investigated the images of astronomical scientists held by Turkish primary students by gender. The Draw an Astronomical Scientist Test was administered to 472 students from an urban area. A Chi-Square Test of Independence was used to test for statistically significant differences between gender groups. Significant differences were found between girls’ and boys’ images of astronomical scientists in terms of some aspects. It is thought that the findings of this research will contribute to the development of universal astronomy education, to the researchers studying on gender issues, cultural diversity, and also to the international literature on astronomy education.
Physical Insights Into the Performances of Negative Capacitance Field Effect Transistors Using Single-Domain Versus Multidomain Models

In this study, the performances of negative capacitance field effect transistors (NCFETs) are compared by simulation using single-domain (SD) and multidomain (MD) models. Based on the MD model with the gradient energy coefficient, the ferroelectric (FE) polarization distribution is investigated. The results reveal the correlation among the FE polarization distribution, the NC effect, and the device performances for different device parameters, including the FE thickness (<inline-formula> <tex-math notation="LaTeX">${T}_{\mathrm{FE}}$ </tex-math></inline-formula>) and the oxide thickness (<inline-formula> <tex-math notation="LaTeX">${T}_{\mathrm{OX}}$ </tex-math></inline-formula>). The FE polarization distribution tends to transform from the SD state into the MD state with the increase of <inline-formula> <tex-math notation="LaTeX">${T}_{\mathrm{FE}}$ </tex-math></inline-formula> and the decrease of <inline-formula> <tex-math notation="LaTeX">${T}_{\mathrm{OX}}$ </tex-math></inline-formula>. The increased <inline-formula> <tex-math notation="LaTeX">${T}_{\mathrm{FE}}$ </tex-math></inline-formula> and decreased <inline-formula> <tex-math notation="LaTeX">${T}_{\mathrm{OX}}$ </tex-math></inline-formula> could result in a more significant distinction in the FE polarization distribution and a further larger difference in the NC effect between the MD state and the conventional SD state for NCFETs. The phenomenon above is confirmed by transient characteristics in NCFETs. More analysis and design space of NCFETs are provided by the study results.
Invariant Relative Orbits Taking into Account Third-Body Perturbation

For a satellite in an orbit of more than 1600 km in altitude, the effects of Sun and Moon on the orbit can’t be negligible. Working with mean orbital elements, the secular drift of the longitude of the ascending node and the sum of the argu-ment of perigee and mean anomaly are set equal between two neighboring orbits to negate the separation over time due to the potential of the Earth and the third body effect. The expressions for the second order conditions that guaran-tee that the drift rates of two neighboring orbits are equal on the average are derived. To this end, the Hamiltonian was developed. The expressions for the non-vanishing time rate of change of canonical elements are obtained.
Search and study of young infrared stellar clusters

The “bricks” of the Galactic disc are giant molecular clouds, which are birthplaces of stellar population. Therefore, there is a genetic connection between young stellar objects (YSOs) and their surrounding Interstellar Medium (ISM). The thesis is devoted to a search for young stellar clusters in the vicinity of IRAS sources and a detailed study of three selected star-forming regions: IRAS 05137+3919, 05168+3634, and 19110+1045, which includes determining the parameters of the ISM based on far-infrared data, the identification and classification of YSOs using color-color and color-magnitude diagrams, the modeling of stellar parameters, and the construction and interpretation of the luminosity functions. It is likely that the three young stellar clusters were formed under different scenarios. The age spread of the IRAS05137+3919 and IRAS05168+3634 regions is much larger, and, therefore, we concluded that the stellar population is formed as a result of independent condensations. The age spread of the IRAS clusters’ members in the third region, which is a pair of ultra-compact HII regions (UCHIIs), namely G45.12+0.13 and G45.07+0.13, is small. The small age spread suggests that the clusters may originate from a single triggering event. Moreover, high-mass YSOs were obtained only in the G45.07+0.13 and G45.12+0.13 UCHII regions where the ISM initial density was higher and the star formation proceeded relatively quickly.
Experiments on convection of isolated masses of buoyant fluid

Isolated masses of buoyant fluid were released in a water tank. Their width, 2r, and the distance travelled, z, were measured as functions of time and were found to follow roughly the laws $r = nz,\;\;\;\;\; w = C(g \overline {B}r)^ \frac{1}{2},$ where w is the vertical velocity, $\overline {B}$ the mean buoyancy, and n and C are constants. These equations are predicted by dimensional analysis, assuming viscosity to be negligible, and the constants appear to be independent of the Reynolds number. It is found that C [eDot ] 1·2 and n is in the neighbourhood of 4. Since the Froude number relating the buoyancy and inertia forces is the same as for isolated masses of buoyant air in the atmosphere, it is concluded that the constants will have the same value in this latter case. This is confirmed roughly by observation of cumulus cloud towers. Some of the characteristics of the motion observed in the experiments are described and comparison is made with vortex rings.
THE VARIABLE VELOCITY OF THETA CARINAE

A study of the radial velocity variations of the bright, peculiar B star, theta Carinae, using published optical velocities and new IUE data, fails to confirm any of the orbital periods proposed for this system. Instead a new period of 2.203020 ± 0.000017 days is found and it is also suggested that there is a second period at about 25 days. Previously reported line variations found in the optical were not found in the IUE data. The interpretation of this system is still unclear and requires a coordinated observational effort.