Miracle-dz/UniFAR-FTUs huggingface dataset:
On the Variability of the Wind Stress at the Air-Sea Interface

of a dissertation at the University of Miami. Dissertation supervised by Professor William M. Drennan No. of pages in text. (130) This dissertation investigates wind-wave-current interaction, wave breaking detection and the analysis of breaking characteristics at the air-sea interface. In-situ data measured during the Shoaling Waves Experiment (SHOWEX) and Baltic Sea Swell Experiment (BASE) are applied in the studies and analysis. Wind, wind stress and wave data were obtained from several Air Sea Interaction Spar (ASIS) buoys. Surface currents were measured by a High-Frequency Ocean Surface Current Radar. Two distinct types of wave-current-wind interaction were observed in the presence of a strong along-coast current. First, the horizontal current shear resulted in wind-sea waves shifting away from the wind direction. This motion resulted in a steering of the stress away from the mean wind direction. Second, short wind waves on a uniform current are shifted to the current direction, and the wind stress is steered toward the current direction by the short waves. The wind stress veering has been confirmed by data from the SeaWind scatterometer on board the QuikSCAT satellite. This finding is in agreement with the results from some recent studies. The present study also describes an experimental investigation of breaking wave detection by ASIS buoys. A method, developed from the laboratory, and using local wave parameters to provide a detailed description of breaking, is applied to wave data from ASIS buoys. One the basis of these data, the relation between breaking probability and wind speed shows characteristics similar to those from several field experiments with different conditions. Furthermore, additional parameters, wave age and wave steepness, are also shown to affect the breaking probability during our in-situ measurements. Upper ocean shear, which can modulate wave breaking as predicted by both theory and laboratory work, are also observed to change the breaking properties. This characteristic is rarely reported by in-situ experiment.
Changes in the Vegetation, Soil Seed Bank and Soil Properties at Bait Sites in a Protected Area of the Central European Lower Montane Zone

Feeding places for shooting wild boar (so-called bait sites) are spreading in some regions and they have a growing impact on natural ecosystems. Bait sites were investigated to detect the changes in vegetation, the soil seed bank and soil nutrients. The study area is situated in the Mátra Landscape Protection Area, representing a typical oak forest in the Central European lower montane zone (in Hungary). Two types of bait sites were selected: forests and clearings. A vegetation survey, a soil seed bank experiment and a soil analysis were conducted. The degree of degradation of vegetation was similar at the various bait sites, but only the abundance of weeds was higher in the clearings. The density of weed seeds in the soil varied regardless of type, clearly showing the effects of artificial seed sources. The number of weed species was, however, significantly higher in the clearings. The degree of Jaccard-similarity between the vegetation and the seed bank was the highest in the clearings. The dominance of long-term persistent seeds did not differ among bait sites, indicating frequent disturbances at these sites. The amount of soil nutrients was significantly (more than 10 times) higher in the clearings and this, along with their greater openness, may be responsible for the higher number of weed species in their seed banks. The vegetation and the soil of the clearings proved to be more degraded, mainly due to their habitat characteristics, but the seed bank was similarly infected in the less weedy forests; thus, all bait sites may equally be the focal points of a possible invasion. It means new challenges for the management, considering that climate change and the intensive logging and hunting activities can strengthen the effects of bait sites.
Tendencias administrativas y conceptos de emprendimiento viables para apoyar a las empresas, negocios y proyectos de emprendimiento durante y después del covid-19

El presente trabajo de investigación evidencia las medidastomadas por el Gobierno en 2020 a raíz de la enfermedadcausada por el coronavirus, que obligó a muchos negocios yempresas a aplicar ideas de emprendimiento y tendenciasadministrativas como reinventarse y crear estrategias para llegara los consumidores, o migrar a plataformas tecnológicas, entreotras, para adaptarse de la mejor manera, logrando así minimizarel impacto negativo en el ámbito administrativo, económicoy laboral. Es evidente que, durante la crisis, las empresasbuscaron la manera de reestructurar su estrategia comercialpara salir adelante y no perderse en la crisis. Convirtieron estaproblemática en una reinvención en la que usaron diferentesmodelos y se comprometieron con su negocio; por lo tanto, sebusca entender la importancia de agregar planes de trabajo conénfasis en las nuevas tendencias administrativas y enfocarse enlos nuevos rumbos de las pequeñas y medianas empresas.Debido a la crítica y complicada situación que atraviesandiferentes sectores durante la transición por la crisispandémica generada por el COVID-19, diferentes empresas yemprendimientos buscaron la manera de desarrollar sus ideasde negocio o sostener un proyecto ya planteado, y por eso seremitieron a buscar, indagar y comprender el concepto deemprendimiento, así como las tendencias administrativas, con elobjetivo de mejorar los procesos que ya están en marcha paradarles un enfoque más optimizado, dando a entender que laprincipal prioridad en las empresas es la optimización y gestiónde los gastos que puede generar un proyecto nuevo, perotambién un proyecto que ya está establecido.
Generalized semiquantum secret-sharing schemes

We investigate quantum secret sharing schemes constructed from $[[n,k,\delta]]_D$ non-binary stabilizer quantum error correcting codes with carrier qudits of prime dimension $D$. We provide a systematic way of determining the access structure, which completely determines the forbidden and intermediate structures. We then show that the information available to the intermediate structure can be fully described and quantified by what we call the *information group*, a subgroup of the Pauli group of $k$ qudits, and employ this group structure to construct a method for hiding the information from the intermediate structure via twirling of the information group and sharing of classical bits between the dealer and the players. Our scheme allows the transformation of a ramp (intermediate) quantum secret sharing scheme into a semi-quantum perfect secret sharing scheme with the same access structure as the ramp one but without any intermediate subsets, and is optimal in the amount of classical bits the dealer has to distribute.
Superconductivity Reinforced by Magnetic Field and the Magnetic Instability in Uranium Ferromagnets

We review our recent results on ferromagnetic superconductors, URhGe and UCoGe. High quality single crystals of both compounds were successfully grown. The specific heat shows a clear jump related to the superconducting transition in UCoGe. The finite values of C / T at 0 K are discussed in terms of the self-induced vortex state and the value of the ordered moment. With increasing fields for H ∥ b -axis in URhGe, the jump of thermal expansion increases and shifts to lower temperature. The re-entrant and S-shaped superconducting phases for URhGe and UCoGe respectively are explained by the unusual field dependence of the effective mass, which is induced by the ferromagnetic instability when the field is applied along the hard magnetization b -axis. The magnetic fluctuations are very sensitive to the field orientation. This is reflected in the H c2 and the anisotropy of the effective mass.
Biological studies of transgender identity: A critical review

Abstract Introduction: There is increasing public and research interest in transgender people and communities. Coupled with this interest is a renewed pursuit of research into the possible biological origins of transgender identity. In this review, we critically examine the biological literature which explores the etiology of transgender identity, including endocrinological, behavioral, genetic, and neuroimaging studies, with the goal of identifying key trends in this literature, limitations, critical gaps, and future directions. Methods: We searched the Pubmed database for peer reviewed original experimental research conducted since 1990, using a combination of six transgender identity-related search terms and 18 topic search terms. Results: A total of 102 articles across the disciplines of endocrinology, genetics, cognitive function, and neuroanatomy met our review criteria. Most studies were conducted at gender identity clinics. Several approaches yielded compelling results, but where replication has been attempted, results have varied. We identified several issues in experimental design and/or interpretation that might account for this inconsistency. Conclusion: A number of research studies have investigated biological factors that could potentially contribute to transgender identity, but results often contradict each other. Interpretation of etiological studies of transgender identity can be misunderstood and/or misused by media, politicians, and care providers, placing transgender people at risk. We question the utility of etiological studies in clinical care, given that transgender identity is not pathological. When etiological studies are undertaken, we recommend new, inclusive designs for a rigorous and compassionate approach to scientific practice in the service of transgender communities and the providers who serve them.
Macrostructural and Microstructural White Matter Alterations Are Associated with Apathy across the Clinical Alzheimer’s Disease Spectrum

Apathy is the commonest neuropsychiatric symptom in Alzheimer’s disease (AD). Previous findings suggest that apathy is caused by a communication breakdown between functional neural networks involved in motivational–affective processing. This study investigated the relationship between white matter (WM) damage and apathy in AD. Sixty-one patients with apathy (AP-PT) and 61 without apathy (NA-PT) were identified from the Alzheimer’s Disease Neuroimaging Initiative (ADNI) database and matched for cognitive status, age and education. Sixty-one cognitively unimpaired (CU) participants were also included as controls. Data on cognitive performance, cerebrospinal fluid biomarkers, brain/WM hyperintensity volumes and diffusion tensor imaging indices were compared across groups. No neurocognitive differences were found between patient groups, but the AP-PT group had more severe neuropsychiatric symptoms. Compared with CU participants, only apathetic patients had deficits on the Clock Drawing Test. AP-PT had increased WM damage, both macrostructurally, i.e., larger WM hyperintensity volume, and microstructurally, i.e., increased radial/axial diffusivity and reduced fractional anisotropy in the fornix, cingulum, anterior thalamic radiations and superior longitudinal and uncinate fasciculi. AP-PT showed signs of extensive WM damage, especially in associative tracts in the frontal lobes, fornix and cingulum. Disruption in structural connectivity might affect crucial functional inter-network communication, resulting in motivational deficits and worse cognitive decline.
AN ASTEROSEISMIC MEMBERSHIP STUDY OF THE RED GIANTS IN THREE OPEN CLUSTERS OBSERVED BY KEPLER: NGC 6791, NGC 6819, AND NGC 6811

Studying star clusters offers significant advances in stellar astrophysics due to the combined power of having many stars with essentially the same distance, age, and initial composition. This makes clusters excellent test benches for verification of stellar evolution theory. To fully exploit this potential, it is vital that the star sample is uncontaminated by stars that are not members of the cluster. Techniques for determining cluster membership therefore play a key role in the investigation of clusters. We present results on three clusters in the Kepler field of view based on a newly established technique that uses asteroseismology to identify fore- or background stars in the field, which demonstrates advantages over classical methods such as kinematic and photometry measurements. Four previously identified seismic non-members in NGC 6819 are confirmed in this study, and three additional non-members are found—two in NGC 6819 and one in NGC 6791. We further highlight which stars are, or might be, affected by blending, which needs to be taken into account when analyzing these Kepler data.
A Novel Automated RGB-D Sensor-Based Measurement of Voluntary Items of the Fugl-Meyer Assessment for Upper Extremity: A Feasibility Study

Motor function assessment is essential for post-stroke rehabilitation, while the requirement for professional therapists’ participation in current clinical assessment limits its availability to most patients. By means of sensors that collect the motion data and algorithms that conduct assessment based on such data, an automated system can be built to optimize the assessment process, benefiting both patients and therapists. To this end, this paper proposed an automated Fugl-Meyer Assessment (FMA) upper extremity system covering all 30 voluntary items of the scale. RGBD sensors, together with force sensing resistor sensors were used to collect the patients’ motion information. Meanwhile, both machine learning and rule-based logic classification were jointly employed for assessment scoring. Clinical validation on 20 hemiparetic stroke patients suggests that this system is able to generate reliable FMA scores. There is an extremely high correlation coefficient (r = 0.981, p < 0.01) with that yielded by an experienced therapist. This study offers guidance and feasible solutions to a complete and independent automated assessment system.
PENGEMBANGAN MEDIA PEMBELAJARAN AUDIOVISUAL BERBASIS APLIKASI QUIZIZZ PADA MATA PELAJARAN IPS SISWA KELAS IV SD

Riset ini bermaksud menguji kelayakan media pembelajaran audio visual berbasis aplikasi quizizz, untuk pelajaran IPS materi keindahan keanekaragaman budaya di negeriku ditujukan kepada kelas IV SDN Grogol 05 Jakarta Barat. Diharapkan media pembelajaran audio visual berbasis quizizz akan mewujudkan kondisi belajar yang bermakna dan menarik bagi siswa. Metodologi dalam riset ini adalah pendekatan research and development (R&D) berupa model pengembangan ADDIE. Peneliti mengumpulkan data melalui observasi, wawancara, kuesioner dan melaksanakan penelitian media. Model ADDIE menggunakan beberapa tahapan, antara lain analisis, desain, pengembangan, implementasi, dan evaluasi. Dari hasil penelitian menunjukan persentase dari validator media adalah 90% termasuk mutu sangat layak, sedangkan persentase dari validator materi adalah 80%, dan pakar pendidikan adalah 97% termasuk kategori sangat layak. Respon siswa tes kelompok kecil adalah 93% dalam kategori sangat setuju dan pada kelompok besar 92% dalam kategori sangat setuju. Dengan demikian, dapat dikatakan pembelajaran audio visual berbasis aplikasi quizizz sangat cocok sebagai media pembelajaran
Relaciones estructurales entre factores contextuales y personales, y el rendimiento académico en Contabilidad

En la región nordeste de Argentina, como en otras zonas de Latinoamérica, un número considerable de alumnos abandonan sus estudios universitarios o deciden cambiar de carrera poco tiempo después de su ingreso. El objetivo es desarrollar, mediante la técnica estadística de ecuaciones estructurales, un modelo que explique de qué manera se relacionan ciertos factores contextuales y personales con los resultados en la asignatura Contabilidad. La muestra estuvo conformada por 110 jóvenes, con una media de 19.84 años ( e = 1.78), que asistieron en el año 2018 a la Facultad de Ciencias Económicas de la Universidad Nacional del Nordeste. El diseño metodológico es de tipo explicativo, de corte transversal, de línea cuantitativa y de perfil correlacional. Se comprobó que el modelo hipotetizado se ajusta al empírico y sería de utilidad para explicar que los factores aspectos contextuales, autoconcepto y estrategias de aprendizaje influyen de diferente forma en la variabilidad del rendimiento académico en Contabilidad. La representación propuesta podría considerarse un recurso interesante para plantear medidas de intervención educativa que promuevan soluciones válidas al problema analizado.
Wavelet Analysis and Denoising: New Tools for Economists

This paper surveys the techniques of wavelets analysis and the associated methods of denoising. The Discrete Wavelet Transform and its undecimated version, the Maximum Overlapping Discrete Wavelet Transform, are described. The methods of wavelets analysis can be used to show how the frequency content of the data varies with time. This allows us to pinpoint in time such events as major structural breaks. The sparse nature of the wavelets representation also facilitates the process of noise reduction by nonlinear wavelet shrinkage , which can be used to reveal the underlying trends in economic data. An application of these techniques to the UK real GDP (1873-2001) is described. The purpose of the analysis is to reveal the true structure of the data - including its local irregularities and abrupt changes - and the results are surprising.
SUBARU SPECTROSCOPY OF THE GLOBULAR CLUSTERS IN THE VIRGO GIANT ELLIPTICAL GALAXY M86

We present the first spectroscopic study of the globular clusters (GCs) in the giant elliptical galaxy (gE) M86 in the Virgo Cluster. Using spectra obtained in the Multi-Object Spectroscopy mode of the Faint Object Camera and Spectrograph on the Subaru telescope, we measure the radial velocities for 25 GCs in M86. The mean velocity of the GCs is derived to be km s−1, which is different from the velocity of the M86 nucleus (vgal = −234 ± 41 km s−1). We estimate the velocity dispersion of the GCs, σp = 292+32− 32 km s−1, and find a hint of rotation in the M86 GC system. A comparison of the observed velocity dispersion profiles of the GCs and stars with a prediction based on the stellar mass profile strongly suggests the existence of an extended dark matter halo in M86. We also estimate the metallicities and ages for 16 and 8 GCs, respectively. The metallicities of M86 GCs are in the range of −2.0 < [Fe/H] <−0.2 with a mean value of −1.13 ± 0.47. These GCs show a wide age distribution from 4 to 15 Gyr.
Cooperative control strategy of wheel-legged robot based on attitude balance

Abstract To integrate the uneven terrain adaptivity of legged robots and the fast capacity of wheeled robots on even terrains, a four wheel-legged robot is addressed and the cooperative control strategy of wheels and legs based on attitude balance is investigated. Firstly, the kinematics of wheel-legged robot is analyzed, which contains the legged and wheeled motion modal. Secondly, the cooperative control strategy of wheel-legged robot based on attitude balance is proposed. The attitude is calculated by using the quaternion method and complementary filtering, and the attitude stability control of the wheel-legged robot is studied. The trajectory planning of leg motion including walk and trot gait is implemented, and the differential control of wheeled motion is deduced. And then, the cooperative motion control of wheels and legs is achieved by keeping the attitude balance of robot body. Finally, a small prototype is set up to validate the feasibility and effectiveness of proposed method. The experimental results show that the established wheel-legged robot can do walk, trot, and wheel-leg compound motion to overcome many complex terrains and environments.
Vasundhara's mirror exercise sheets and shields – A novel indirect vision training device

Background: Mastering indirect vision has been a common challenge to undergraduate and postgraduate dental students. Aim: This study assessed the usefulness of Vasundhara's mirror exercise (V-ME) Shield and Sheets for learning indirect vision among dental students. Materials and Methods: One hundred 2nd year undergraduate students participated in the study who had just started their preclinical operative exercises. All the participants of the study group were asked to prepare a Class I amalgam cavity on maxillary left first molar typodonts followed by evaluation by a single evaluator. Then, all the participants were exposed to 21 days' practice of indirect vision exercises for 15 min using V-ME Shields and Sheets under supervision. Again, all the participants were asked to prepare a Class I amalgam cavity in maxillary left first molar typodonts followed by evaluation by the same evaluator. All the participants were asked about the usefulness of the device by requesting them to fill out the feedback form. The entire results were tabulated and statistically analyzed. Statistical analysis was done by one-way analysis of variance (P < 0.05) using IBM SPSS (version 21.0) software. Results: Students after being trained with the V-ME device performed better in indirect vision. According to the results obtained it is concluded that indirect vision can be mastered by practice and it also helps in precision work in clinical practice. Conclusion: V-ME shields and sheets are novel, simple, and cost-effective way to start practicing mirror vision skills during preclinical studies and to improve neurophysiological adaptation.
TRANSIT SURVEYS FOR EARTHS IN THE HABITABLE ZONES OF WHITE DWARFS

To date the search for habitable Earth-like planets has primarily focused on nuclear burning stars. I propose that this search should be expanded to cool white dwarf stars that have expended their nuclear fuel. I define the continuously habitable zone of white dwarfs and show that it extends from ≈0.005 to 0.02 AU for white dwarfs with masses from 0.4 to 0.9 M☉, temperatures less than ≈104 K, and habitable durations of at least 3 Gyr. As they are similar in size to Earth, white dwarfs may be deeply eclipsed by terrestrial planets that orbit edge-on, which can easily be detected with ground-based telescopes. If planets can migrate inward or reform near white dwarfs, I show that a global robotic telescope network could carry out a transit survey of nearby white dwarfs placing interesting constraints on the presence of habitable Earths. If planets were detected, I show that the survey would favor detection of planets similar to Earth: similar size, temperature, and rotation period, and host star temperatures similar to the Sun. The Large Synoptic Survey Telescope could place even tighter constraints on the frequency of habitable Earths around white dwarfs. The confirmation and characterization of these planets might be carried out with large ground and space telescopes.