Miracle-dz/UniFAR-FTUs huggingface dataset:
Performance Analysis of Uplink IM-OFDMA Systems in the Presence of CFO and Rx-IQI

Index modulation-based orthogonal frequency division multiple access (IM-OFDMA) has been recently proposed as a promising candidate for future wireless communication systems due to its superior spectral efficiency and error performance compared to conventional multiple access schemes. Therefore, it has been under investigation by researchers analyzing its performance considering different scenarios and assumptions. Following this direction, this paper presents the error performance of the uplink IM-OFDMA in the presence of carrier frequency offset (CFO) and receiver (Rx) in-phase and quadrature imbalance (IQI). In particular, the individual and joint effects of the CFO and Rx-IQI on the bit-error-rate (BER) performance of the uplink IM-OFDMA scheme are investigated, and then the IM-OFDMA is compared with the conventional OFDMA scheme by considering the detrimental effect of CFO and Rx-IQI. Accordingly, this paper shows that IM-OFDMA achieves better BER performance results than the OFDMA scheme in the presence of CFO and Rx-IQI. However, the obtained results also reveal that the IM-OFDMA scheme is very sensitive to RF impairments even though it performs better than conventional OFDMA.
Machine Learning and Sentiment Analysis for Predicting Environmental Lead Toxicity in Children at the ZIP Code Level

One of the most avoidable environmental public health problems is childhood lead exposure, which can lead to a variety of disorders such as reduced muscle coordination, stunted bone and muscle growth, damaged nervous system, impaired speech and language, and seizures. It is difficult to predict whether someone will be exposed to lead, but studies have found a correlation between lead exposure and things like household income, ethnicity or refugee status, reliance on Medicaid, older homes built before 1978 with lead paint in poor condition, proximity to industry, and people working in lead-exposed environments like manufacturing, repair, welding, or renovation jobs. We predict potential lead exposure at the zip code level using data from Massachusetts and New York's Blood Lead Levels that are publicly available. Additionally, using data gathered from news stories and other media, we offer a sentimental analysis approach based on Long Short Term Memory (LSTM) deep learning algorithm to assess how well the lead programs are being implemented in these states. Using six different machine learning algorithms, we achieved the best performance with LightGBM, with an accuracy of 83.6 percent for New York and 89.1 percent for Massachusetts and an f1-score of 0.81 and 0.83, respectively. Through the average sentimental analysis ratings for New York and Massachusetts, we found a strong correlation with elevated blood lead levels reported within the states. When compared to earlier researchers' calculations of AUC ROC scores at the individual level, our methodology yields greater AUC ROC scores.
The Small Magellanic Cloud in the far infrared. I. ISO's 170 μm map and revisit of the IRAS 12-100 μm data

The ISOPHOT experiment onboard the ISO satellite generated a complete view of the Small Magellanic Cloud (SMC) at 170 µm with 1.5 arcmin resolution. The map is analysed using an automated photometry program enabling accurate photometric characterization of the far infrared (FIR) emitting regions. An integrated FIR luminosity of 8 . 5×10 7 Lis obtained, leading to a star formation rate of SFRFIR = 0.015 M� /yr. With an average dust temperature of , the total dust mass follows to MD = 3.7 × 10 5 M� . In this paper, the sources detected at 170 µm are compared with those obtainable from the IRAS satellite data. For this purpose, the 12 µm, 25 µm, 60 µm, and 100 µm IRAS high resolution (HiRes) maps of the SMC are re-examined using the same method. In contrast to former studies, this provides an all-band ISO/IRAS source catalog which is no longer based on eyeball classification, but relies on an algorithm which is capable of automated, repeatable photometry, even for irregular sources. In the mid infrared IRAS bands numerous bright FIR emitting regions in the SMC are detected and classified: 73 sources are found at 12 µm, 135 at 25 µm (most of them with Fν 30 K) for the first time. A comparison with earlier IRAS results suggests that many source flux densities in those studies have been under- or overestimated because of non-standardized fitting methods. Many sources with flux densities up to 40 Jy listed in former catalogs cannot be identified in our data.
Covariance Structure Modeling and Measurement Issues: A Note on “Interrelations among a Channel Entity's Power Sources”

The author examines the measurement and modeling procedures employed by Gaski in a study of the relationships among a channel entity's power sources. A correct specification of the measurement model provides different parameter estimates and conclusions about the fit of the models. A respecification also overcomes Gaski's problems with model identification and provides information not available in the original analysis.
A Compact Circuit Model for Frequency-Selective Limiters with Strong Field Nonuniformity

A compact nonlinear circuit model is developed for frequency-selective limiters (FSLs) based on thin film magnetic materials. The model contains three-port spin units that represent the dynamic spin precession behaviors. They are combined with transmission line lumped element model to form a complete circuit for FSLs. The field nonuniformity is addressed by splitting the original transmission line inductance. The circuit model is implemented in Advanced Design System (ADS) and is capable of predicting the insertion loss and power threshold of a CPW-FSL.
A Tersoff‐based interatomic potential for wurtzite AlN

Aluminum nitride (AlN) is a popular buffer layer and interlayer. The understanding of how AlN serves as a wetting and fracture‐mitigating layer relies on molecular pictures of the AlN layer and the interfaces. However, molecular dynamics (MD) simulation studies on AlN system, particularly on its wurtzite phase, have been limited. This is because most existing interatomic force fields of AlN target the less common zinc blende phase. Here, we report a new Tersoff‐based AlN force field for its wurtzite structure. This potential has been extensively tested in terms of lattice parameters, bulk modulus, cohesive energy, and heat capacity. In addition, thermal expansion coefficient (TEC) of wurtzite AlN, a key property to precisely model heterostructures, has been calculated using MD method. The value of 2.66 × 10−6 K−1 calculated at 300 K for TEC is in excellent agreement with the reported experimental value.
On cross coupling in multiple-beam antennas

In general, the beam patterns of a multiple-beam antenna system may overlap. The degree of overlap is usefully defined by a cross-correlation type of integral which includes phase factors as well as polar diagrams in the description of the beams. It is shown that when beam overlap exists, conservation of energy implies the unavoidable existence of cross couplings between the feed lines, and a related limitation on the radiation efficiency (or correspending receiving cross section) of any single beam. Quantitative relationships are derived describing these limitations, and examples given. The implied character of the scattering matrix, comprised of the array of cross-coupling factors, is also discussed with especial emphasis on lossless, reciprocal systems.
Extremal structure in operator spaces

a) A characterization of extreme operators (in the unit ball of operators) between L 1'-spaces is given, together with other related proper- ties. (b) A general theorem of Kreln-Milman type for the unit ball of operator spaces is proved, and is applied to operators between Ll-spaces and to oper- ators into C-spaces. 1. Introduction. In this paper we study in detail extreme points in the unit ball of operator spaces (which we shall briefly call extreme operators). Although we treat mostly operators in L '-spaces and C-spaces, some of the results are general (? 3). Before discussing the results, we go briefly over the notations. They are mostly standard and we refer to (14) for some of the notations, though we remark that if E is a Banach space, the action of x* E E* on x E E will be denoted either by x*(x) or by (x*, x). The canonical imbedding of E into E** will be denoted by JE. The scalars are either real or complex; only in Theorem 2.10 are they assumed to be real. Generalizing a notation of Morris and Phelps (121, we call an operator T: E -. F, for two Banach spaces E and F, a nice operator, if T*(ext S(F*)) C ext S(E*). It is easy to verify that every nice oper- ator is extreme, and to construct examples where there exist no nice operators
Kinematic structure of an Atlantic cloud cluster during GATE and its time variation

This study uses the G ATE ( G ARP A tlantic T ropical E xperiment) upper air network in the tropics combined with high resolution SMS-1 ( S ynchronous M eteorological S atellite) derived winds at low levels, to identify the time-varying kinematics, and mass flux within the region of an intense cloud cluster on September 5, 1974. Satellite data was stored, displayed, and processed on the M an- C omputer I nteractive D ata A ccess S ystem (McIDAS). Measurements of cloud area expansion covering 20 h determined the cloud cluster stages. Quantitative measurements of the mass flux and kinematic properties of the cluster are given for the growth, growth-mature, and mature-dissipating stages of the cluster. In the growth phase of the cluster strong convergence exists below 900 mb. Relative winds show that the mass inflow to the cluster comes from the west-southwest below 950 mb within the subcloud layer. During the growth-mature stage deep convective system dominates the cluster. Strong low level convergence decreases as divergence at 250 mb becomes dominant. In the growth stage downward motion exists above 600 mb, which becomes strongly upward as the cluster matures. Maximum vertical motion shifts from 800 to 300 mb in the mature-dissipating stage. A mass budget quantitatively describes the horizontal and vertical mass exchanges in and around the cluster. In the growth stage subcloud layer air is horizontally transported from distances greater than 300 km from the cluster center, transported upward in the cluster, and exits in the 800–600 mb layer. The growth-mature stage, characterized by wide-spread deep convection shows that mass is raised at the 200–250 mb layer, where it is transported northward. Most of this mass is supplied by the large scale flow of warm moist air below 950 mb. Relative winds show that deep convection in the cluster is responsible for the upward transport of equatorial air to higher latitudes, supporting the view that cloud clusters are an integral part of the Hadley circulation cell. DOI: 10.1111/j.2153-3490.1980. tb00971.x
Acceleration statistics of solid particles in turbulent channel flow

Direct numerical simulations (DNS) are used here to study inertial particle acceleration statistics in the near-wall region of a turbulent channel flow. The study is motivated by observations in homogeneous isotropic turbulence (HIT) suggesting that when particle inertia increases, particle acceleration variance decreases due to both particle preferential accumulation and the filtering effect of inertia. In accordance with these studies, the present DNS shows that for increasing inertia, solid particle acceleration probability density functions (PDFs), scaled by the acceleration root-mean-square (RMS), depart from that of the fluid. The tails of these PDFs become narrower. However, in turbulent channel flow, as the Stokes number increases up to 5, the streamwise acceleration RMS in the near-wall region increases, while further increase of the Stokes number is characterized by the streamwise acceleration RMS decrease. In parallel, contrary to calculations in homogeneous isotropic turbulence, the conditiona.
A METHOD FOR CORRECTING ASPECT SOLUTION ERRORS IN ROSAT HRI OBSERVATIONS OF COMPACT SOURCES

X-Ray point sources observed with ROSAT High Resolution Imager (HRI) often appear elongated over scales of ~5" - 10" from the image core. This elongation has been attributed to errors in the attitude correction as the satellite is wobbled during the observations, and affects sources with both soft and hard X-Ray spectra. In this paper, I report the results of an attempt to rid a high signal-to-noise observation of the soft X-Ray point source HZ 43 of its characteristic elongation. I divided the observation into 181 separate images, each containing photons from only a small region on the detector through which the source passed during the satellite's wobble. By measuring the positions of the individual image centroids, I found clear evidence for systematic offsets from a common mean by up to ~ ± 3" in both right ascention and declination as a function of phase in the satellite wobble. Shifting the sub-images to a common center and then restacking them into a single image measurably improved the symmetry of the point spread function. HRI observations are wobbled primarily to smooth out variations in the pixel-to-pixel sensitivity of the detector and also to extend the lifetime of the microchannel plates in the detector since these decay at a given location as a function of the number of photons detected. However, the elongations introduced by the aspect errors inhibit the identification of possible extended X-Ray emission associated with sources such as pulsars and active galactic nuclei. In light of these results, I suggest that until the aspect errors are understood, observations of compact sources, where this effect may be important, should not be wobbled.
Running head: RELIEF IN EVERYDAY LIFE 1 Relief in Everyday Life

Despite being implicated in a wide range of psychological and behavioral phenomena, relief remains poorly understood from the perspective of psychological science. What complicates the study of relief is that people seem to use the term to describe an emotion that occurs in two distinct situations: when an unpleasant episode is over, or upon realizing that an outcome could have been worse. This study constitutes a detailed empirical investigation of people’s reports of everyday episodes of relief. A set of four studies collected a large corpus (N = 1835) of first-person reports of real-life episodes of relief and examined people’s judgments about the antecedents of relief, its relation to counterfactual thoughts, and its subsequent effects on decision making. Some participants described relief experiences that had either purely temporal or purely counterfactual precursors. Nevertheless, the findings indicated that the prototypical instance of relief appears to be one in which both these elements are present. The results also suggest that, although relief is frequently experienced in situations in which people are not responsible for the relief-inducing event, nevertheless they typically report that the experience had a positive impact on subsequent decision making.
ESTIMATES OF GENETIC VARIANCE COMPONENT OF AN EQUILIBRIUM POPULATION OF CORN

There are abundant maize populations in Hardy-Weinberg equilibrium, which can be used as source of gene to develop either a hybrid variety or an open pollinated variety. Genetic parameters of a population, such as additive genetic variance and variance due to dominance which can be estimated using North Carolina Design I, were used to decide a breeding method to be applied. The objectives of this research were to estimate the genetic variance component of important quantitative traits in an equilibrium corn population and to decide the best method to develop the population. The research was conducted at Agricultural Station of Agriculture Faculty, Gadjah Mada University, in 2012 which was carried out in two steps: to develop half-sib and full-sib families and to evaluate both families in randomized complete block design with three replications. The data was subjected to analysis of variance, and was followed by estimation of genetic variances. The additive variance of ear length and ear diameter of the corn population was greater than dominance variance. In contrary to kernel weight/ear, the dominance variance was greater than additive variance. So based on kernel weight/ear, the Hardy-Weinberg equilibrium corn population can be developed through inbreeding to form a hybrid variety.
Medical respite post-hospitalization for adults experiencing homelessness

Abstract: Nurses provide care in various settings and advocate for vulnerable populations. Recognizing the need for follow-up care after hospitalization and mobilizing necessary resources are part of caring for patients, including those experiencing homelessness. This article discusses how one community coalition assessed gaps in care that might be met by establishing medical respite in the community. This article discusses how one community coalition assessed gaps in care that might be met by establishing medical respite in the community.
Reducing parabolic partial differential equations to canonical form

A simple method of reducing a parabolic partial differential equation to canonical form if it has only one term involving second derivatives is the following: find the general solution of the first-order equation obtained by ignoring that term and then seek a solution of the original equation which is a function of one more independent variable. Special cases of the method have been given before, but are not well known. Applications occur in fluid mechanics and the theory of finance, where the Black-Scholes equation yields to the method, and where the variable corresponding to time appears to run backwards, but there is an information-theoretic reason why it should.
Optical phonon mixing in bilayer graphene with a broken inversion symmetry

Pristine bilayer graphene is a centrosymmetric material in which parity is a conserved quantity. The high sensitivity of this atomic scale structure to external perturbations that break the inversion symmetry enables significant potentials for device applications. Raman spectroscopy is used here to probe the breakdown of parity conservation in a direct and quantitative manner via a phonon mixing phenomenon. The striking broken-symmetry effects display anticrossing coupling between two opposite parity long-wavelength optical phonons. The spectral intensity transfer between the two observed Raman peaks offers quantitative measurements of the evolution of the phonon wave function and demonstrates a manifestation of broken inversion symmetry in graphene layers.
Transmission electron microscopy study on the effect of various capping layers on CoFeB/MgO/CoFeB pseudo spin valves annealed at different temperatures

The microstructure of pseudo spin-valve magnetic tunnel junctions (MTJs) comprising a stacking structure of Ta/Ru/Ta/CoFeB/MgO/CoFeB/ with and without X = Pd, Ti, Ta fabricated on thermally oxidized Si wafer with different annealing temperatures, Ta = 250 °C, 300 °C, 400 °C, and 500 °C, has been investigated. The as-deposited MTJs exhibit an amorphous CoFeB structure that crystallizes into bcc Fe-Co (001) from the MgO (001) interface upon annealing at Ta ≥ 250 °C. A bcc Fe-Co (110) crystallizes from the fcc Pd (111) interface. The Fe-Co layer is alloyed with Pd layer at Ta = 500 °C to form an (Fe, Co)-Pd alloy layer, which causes a drastic reduction in the tunneling magnetoresistance (TMR) from 171% to −2.7%. In the Ti capped MTJs, bcc Fe-Co (001) crystallizes from the hcp (001) Ti interface at Ta = 300 °C. Upon further annealing to Ta ≥ 400 °C, the Ti oxidizes to form amorphous Ti-Ox. The rejected B diffuses back to the CoFe layer at Ta = 500 °C that degrades the TMR. On the other hand, the Ta capped MTJ.
Phase portrait of the matrix Riccati equation

The matrix Riccati equation which arises from optimal control and filtering problems is a quadratic differential equation on the space of real symmetric $n \times n$ matrices. It is closely related, via compactification of the phase space, to the differential equations on the Grassmann manifold and the Lagrange–Grassmann manifold whose flows are generated by the action of one-parameter subgroups of the general linear group and of the symplectic group respectively. We. determine the complete phase portraits of the Riccati equations on all three spaces. The asymptotic behavior of every solution is described. The phase portraits are characterized topologically as well as set-theoretically. Although the Riccati equation is not generally a Morse–Smale vector field, we are able to show that it possesses suitable generalizations of many of the important properties of Morse–Smale vector fields. In particular, the Riccati equation satisfies a generalized version of the Morse inequalities for a Morse–Smale dynamica.
Preliminary study of the CRRES magnetospheric barium releases

Preliminary theoretical and computational analyses of the Combined Release and Radiation Effects Satellite (CRRES) magnetospheric barium releases are presented. The focus of the studies is on the evolution of the diamagnetic cavity which is formed by the barium ions as they expand outward, and on the structuring of the density and magnetic field during the expansion phase of the releases. Two sets of simulation studies are discussed. The first set is based upon a two-dimensional ideal MHD code and provides estimates of the time and length scales associated with the formation and collapse of the diamagnetic cavity. The second set uses a nonideal MHD code; specifically, the Hall term is included. This additional term is critical to the dynamics of sub-Alfvenic plasma expansions, such as the CRRES barium releases, because it leads to instability of the expanding plasma. We performed detailed simulations of the G4 and G10 releases. In both cases the expanding plasma rapidly structured: the G4 release structured at time t ≲ 3 s and developed scale sizes ∼ 1-2 km, while the G10 release structured at time t ≲ 22 s and developed scale sizes ∼ 10-15 km. We also find that the diamagnetic cavity size is reduced from those obtained from the ideal MHD results because of the structure. On the other hand, the structuring allows the formation of plasma blobs which appear to free stream across the magnetic field; thus, the barium plasma can propagate to larger distances transverse to the magnetic field than the case where no structuring occurs. Finally, we also discovered a new normal mode of the system which may be excited at the leading edge of the expanding barium plasma. This mode is a magnetic drift wave which propagates azimuthally around the barium cloud in the frequency range Ωi ≪ ω ≪ Ωe.
Physical and electrical characterization of Hafnium oxide and Hafnium silicate sputtered films

Hafnium oxides and hafnium silicate films were investigated as a possible replacement for the SiO2 gate dielectric. Hafnium oxide films were formed by reactive sputtering from a single Hf oxide target in a predominantly Ar atmosphere containing small additions of oxygen. Hafnium silicates were made by adding a He-diluted silane gas for Si incorporation. By changing the silane gas flow, different Si atomic concentrations were incorporated into the Hf oxide films. Depositions were performed with the substrate held at temperatures of 22 °C and 500 °C. The chemical composition of the films was determined with nuclear techniques. Optical reflectivity was used to measure the optical band gap. The film morphology was investigated by transmission electron microscopy (TEM) and the electrical properties were measured with capacitance–voltage and current–voltage measurements using aluminum gate capacitors. TEM and electrical measurement showed that a SiO2 interfacial layer of about 3 nm formed at the Si interface du.