Miracle-dz/UniFAR-FTUs huggingface dataset:
Accelerated operative recovery in elderly patients with femoral fractures: Our experience of ten years with 870 patients

Background: The WHO considers elderly as an individual who is ≥ 60 y of age, and there are ≥ 37.7 million elderly people. In 2006, the ACERTO Project (Acceleration of Total Post-Operative Recovery) was introduced in Brazil in colorectal surgeries, and in elderly orthopedic femur fractures in 2010, with primary objective for the patient to early return to independent life. The objective of this descriptive study is to evaluate the clinical results 870 elderly patients undergoing surgical treatment of femoral fractures in ten years (2010-2019) after employing the perioperative acceleration protocol. Methodology: It was a cross-sectional, prospective study in patients ≥ 60 y, of both genders, undergoing corrective hip fracture for ten years at a hospital covered by the Brazilian Public Health System (SUS). The data regarding preoperative condition of the patients, fasting status, mode of anesthesia, drugs used, intra-operatively measured variables and immediate post-operative variables measured in the PACU, quality of lumbar plexus block analgesia, presence of delirium in the first day of postoperative was obtained from the study protocol. The deaths during the first postoperative month were noted. Results: A total of 829 patients underwent surgery for a fracture of the hip, under spinal anesthesia, of whom 583 were women and 246 were men. The average hospital stay was 10.2 ± 7.1 days, and it was associated with the age. The mean fasting time was 2:50 ± 0:32 h. The dose of isobaric bupivacaine was 9.62 ± 1:85 mg. The cephalad spread varied from T12 to T5. The duration of the spinal block was 2:50 ± 0:38 h, the time for the use of dextrinomaltose in PACU was 1:39 ± 0:47 h, the time in the PACU was 2:03 ± 0:46 h and the time to reintroduce normal meals was 6:18 ± 1:02 h. Arterial hypotension occurred in 36 (4.3%) patients, bradycardia in 4 (0.4%), and delirium in 16 patients. Eleven (1.3%) patients were sent to the ICU due to surgical problems. There were no deaths directly related to anesthesia or surgery. Conclusion: The implementation of the ACERTO Project in 829 patients with femur fracture of the Brazilian Public Health System, showed favorable results regarding length of stay, patient satisfaction, decreased use of bladder tube and drains, and referral to ICU, with early discharge to residence. Citation: Imbelloni LE, Teixeira DMP, Lima U, Ventura TB, Lacerda S, Brasileiro, Barbosa R, Sales MBL, Duarte M, Filho GBDM. Accelerated operative recovery in elderly patients with femoral fractures: Our experience of ten years with 870 patients. Anaesth. pain intensive care 2022;26(5):608-615; DOI: 10.35975/apic.v26i5. 1992
Interacting binary galaxies. IV. Simulations, masses, and spatial orientations for NGC 1587/1588 and NGC 7236/7237

Successful efforts to match interaction models to all of the available data for two pairs of interacting binary galaxies, Nos. 99 and 564 in the Karachentsev catalog of isolated pairs, are described. The results validate simple Newtonian gravity on the 10 kpc scale. The dynamical orbital status of both K99 and K564 is uniquely determined, and the masses and spatial orientations of the pairs are tightly constrained. Total masses for the pairs are derived which are quite reasonable and yield M/L values near 10. It is concluded that the observed disturbances in rotation velocity and luminosity distribution for these binary galaxies are entirely consistent with the merger hypothesis. Distortions including U-shaped rotation profiles and one-sided luminosity disturbances provide solid observational evidence of tidal friction in action. 18 references.
Statistical optimization for geometric computation - theory and practice

This text for graduate students discusses the mathematical foundations of statistical inference for building three-dimensional models from image and sensor data that contain noise--a task involving autonomous robots guided by video cameras and sensors. The text employs a theoretical accuracy for the optimization procedure, which maximizes the reliability of estimations based on noise data. The numerous mathematical prerequisites for developing the theories are explained systematically in separate chapters. These methods range from linear algebra, optimization, and geometry to a detailed statistical theory of geometric patterns, fitting estimates, and model selection. In addition, examples drawn from both synthetic and real data demonstrate the insufficiencies of conventional procedures and the improvements in accuracy that result from the use of optimal methods.
Intrinsically Conducting Polymer Composites as Active Masses in Supercapacitors

Intrinsically conducting polymers ICPs can be combined with further electrochemically active materials into composites for use as active masses in supercapacitor electrodes. Typical examples are inspected with particular attention to the various roles played by the constituents of the composites and to conceivable synergistic effects. Stability of composite electrode materials, as an essential property for practical application, is addressed, taking into account the observed causes and effects of materials degradation.
Separated flowfield on a slender wing undergoing transient pitching motions

An experimental investigation on the flowfield surrounding a delta wing undergoing a transient pitching motion was conducted. The leading-edge vortices were marked with smoke, and the model and vortex motions were recorded using high-speed motion picture photography. These film records were then analyzed to yield information on the vortex location and trajectory as functions of both angle of attack and time. Hysteresis effects on the vortex dynamics were apparent for both the pitch-up and pitch-down motions. The amount of lag from the static position was seen to be a function of the combined effects of nondimensiona l pitch rate and initial breakdown location. Reynolds number effects were inconsistent. Upon completion of the wing motion, the vortex breakdown typically would not have reached the static position, but would continue moving relative to the wing surface.
Behavior of Planetary Waves before and after Stratospheric Sudden Warming Events in Several Phases of the Equatorial QBO.

Almost a thousand stratospheric sudden warming (SSW) events are obtained through long time integrations with a simple global circulation model, and a statistical analysis based on such a large number of samples is made to investigate behavior of planetary waves before and after SSW events depending on the phase of the equatorial quasi-biennial oscillation (QBO). An idealized zonal momentum forcing to mimic a phase of the QBO is imposed under a perpetual winter condition, and eight phases of the QBO-wind forcing are examined for 8 10 800-day datasets. Some systematic dependence on the phase of the QBO-wind forcing is seen in the anomaly of the Eliassen–Palm (EP) flux in the winter hemisphere, both in the 10 800-day average and in the composites for SSW events. The composite analysis shows that before SSW events, the upward EP flux in the troposphere and midlatitude lower stratosphere as well as the equatorward flux above the tropopause is larger in the westerly forcing runs than in the easterly forcing runs. After SSW events, the upward EP flux in the troposphere is still larger in the westerly forcing runs. Correlation associated with the differences among SSW events that occurred in each run is significantly positive between the magnitude of the warming and the planetary wave activity flux before all the events in QBO-wind forcing in the stratosphere, but only in the easterly forcing runs in the troposphere.
Biologically-Based Computation: How Neural Details and Dynamics Are Suited for Implementing a Variety of Algorithms

The Neural Engineering Framework (Eliasmith & Anderson, 2003) is a long-standing method for implementing high-level algorithms constrained by low-level neurobiological details. In recent years, this method has been expanded to incorporate more biological details and applied to new tasks. This paper brings together these ongoing research strands, presenting them in a common framework. We expand on the NEF’s core principles of (a) specifying the desired tuning curves of neurons in different parts of the model, (b) defining the computational relationships between the values represented by the neurons in different parts of the model, and (c) finding the synaptic connection weights that will cause those computations and tuning curves. In particular, we show how to extend this to include complex spatiotemporal tuning curves, and then apply this approach to produce functional computational models of grid cells, time cells, path integration, sparse representations, probabilistic representations, and symbolic representations in the brain.
ANALYSIS OF A VERTICAL ELECTRIC DIPOLE ABOVE A PLANAR DISSIPATIVE GROUND USING THE METHOD OF AUXILIARY SOURCES

In this paper, the problem of the radiation from an infinitesimal vertical electric dipole (VED) above a semi-infinite dissipative ground is examined. The presented solution for the electromagnetic (EM) field in each region is based on the method of auxiliary sources (MAS). This method is applied by introducing sets of fictitious elementary electric dipoles, which are vertically oriented in regard to the infinite ground plane, in order to approximately describe the actual EM fields. Due to the cylindrical symmetry of the problem, the fictitious sources are circularly distributed and as a direct outcome, the rank of the resultant matrix equation is remarkably reduced. Also, it is shown that both the convergence rate and the accuracy of the method are improved by utilizing the image locations of the auxiliary sources. Moreover, an innovative concept, based on the fact that the unknown fields are generated by discrete elementary dipoles, is developed for performing antenna analysis and, thereafter, used for the calculation of the input impedance of the VED and the radiated power in the air. Finally, the agreement of the computed results with previously published data is verified over a wide range of the problem parameters.
Complex acoustic and electromagnetic resonance frequencies of prolate spheroids and related elongated objects and their physical interpretation

A numerical calculation of the complex eigenfrequencies of prolate spheroids and ellipsoids, and of finite‐length circular cylinders undergoing acoustic or electromagnetic eigenvibrations is reported. While mainly longitudinal eigenvibrations have been studied previously, here we obtained eigenfrequencies of vibrations which contain azimuthal components. These give rise (e.g., for the case of a cylinder) to helical surface waves, and we were able to interpret the corresponding eigenfrequencies in terms of resonances caused by the phase matching of such surface waves as they repeatedly engulf, and propagate around, the vibrating object. Phase and group velocities and absorption coefficients of the surface waves are obtained numerically from the set of complex eigenfrequencies.
ANISOTROPIC LINE EMISSION AND THE GEOMETRY OF THE BROAD-LINE REGION IN ACTIVE GALACTIC NUCLEI

The rapid response of the broad emission lines to continuum variations in the Seyfert galaxy NGC 5548 implies that line-emitting regions are very close to the continuum source. As described in this contribution, photoionization models must be modified to deal with the very high radiation densities in the broad-line region. An immediate consequence of the high radiation density is that the emission-line cloud column den­ sities must be large in order for the clouds to remain optically thick in the ionizing continuum and hence show recombination line variability. This leads to significant optical depths in the lines as well, with the result that line emission is radiated anisotropically, with most of the radiation emitted from the inner, irradiated face of the cloud. This may account for the apparent absence of line-emitting material along our line of sight to the continuum source, as inferred from reverberation studies. We show that the observed continuum-Hp transfer function for NGC 5548 is consistent with a spherical distribution of anisotropically radiating clouds. We estimate the density in the LyOt:-C IV--emitting regions as N ~ 1011 em- 3, largely due to the lack of significant C m] 11909 emission from this gas. The ionization parameter is then set by the source-cloud separation. The clouds are predicted to be significant emitters of 0 V 11218, which would cause LyOt: to appear redshifted and respond in a nonlinear manner. We show that clouds at slightly higher densities but cosmic abundances can be strong emitters of lines such as Al III 11860, largely because cooling by other lines is sup­ pressed by line thermalization at these densities. Subject headings: atomic processes - galaxies: individual (NGC 5548) - galaxies: nuclei galaxies: Seyfert - line formation - quasars: emission lines
MODIS Global Cloud-Top Pressure and Amount Estimation: Algorithm Description and Results

Abstract The Moderate Resolution Imaging Spectroradiometer (MODIS) on the NASA Earth Observing System (EOS) Terra and Aqua platforms provides unique measurements for deriving global and regional cloud properties. MODIS has spectral coverage combined with spatial resolution in key atmospheric bands, which is not available on previous imagers and sounders. This increased spectral coverage/spatial resolution, along with improved onboard calibration, enhances the capability for global cloud property retrievals. MODIS operational cloud products are derived globally at spatial resolutions of 5 km (referred to as level-2 products) and are aggregated to a 1° equal-angle grid (referred to as level-3 product), available for daily, 8-day, and monthly time periods. The MODIS cloud algorithm produces cloud-top pressures that are found to be within 50 hPa of lidar determinations in single-layer cloud situations. In multilayer clouds, where the upper-layer cloud is semitransparent, the MODIS cloud pressure is representa.
The Significance of Low Magnesium Levels in COVID-19 Patients

Magnesium is the fourth most common mineral in the human body and the second richest intracellular cation. This element is necessary for many physiological reactions, especially in the cardiovascular and respiratory systems. COVID-19 is an infectious disease caused by SARS-CoV-2. The majority of people who become ill as a result of COVID-19 have mild-to-moderate symptoms and recover without specific treatment. Moreover, there are people who develop severe forms of COVID-19, which require highly specialized medical assistance. Magnesium deficiency may play a role in the pathophysiology of infection with SARS-CoV-2. The primary manifestation of COVID-19 remains respiratory, but the virus can spread to other organs and tissues, complicating the clinical picture and culminating in multiorgan failure. The key mechanisms involved in the disease include direct viral cytotoxicity, endothelial dysfunction, and exaggerated release of inflammatory cytokines. The aim of this review was to summarize the available data regarding the role of magnesium in COVID-19 patients and its particularities in different clinical settings.
Keberadaan Mahkamah Konstitusi Dalam Sistem Ketatanegaraan Republik Indonesia

Salah satu agenda terpenting dari tuntutan reformasi dan demokrasi adalah dibangunnya suatu sistem ketatanegaraan Indonesia yang berbasis pada paham kedaulatan rakyat dan negara hukum (rechstaat). Oleh karena itu, dalam konteks penguatan sistem hukum yang diharapkan mampu membawa rakyat Indonesia mencapai tujuan bernegara yang dicita-citakan, maka perubahan UUD 1945 merupakan langkah strategis yang harus dilakukan dengan seksama oleh bangsa Indonesia. Berbicara tentang sistem hukum tentunya tidak terlepas dari persoalan politik hukum, sebab politik hukumlah yang menentukan sistem hukum sebagaimana yang dikehendaki. Perubahan sistem ketatanegaraan yang terjadi mengakibatkan berubah pula sistem politik, budaya dan hukum di Indonesia. Maka dari itu, generasi muda harus menjadi agen perubahan dalam kehidupan kenegaraan secara konstitusional dengan mengambil bagian dalam dinamika konstitusionalitas bangsa dan negara. Untuk menumbuhkan budaya sadar berkonstitusi diperlukan pemahaman terhadap nilai-nilai dan norma-norma dasar yang menjadi materi muatan konstitusi. Dengan demikian, gagasan pembentukan Mahkamah Konstitusi merupakan upaya yang ditujukan untuk penyelenggaraan kekuasaan dan ketatanegaraan yang benar sesuai hukum dasar atau konstitusi. Mahkamah Konstitusi merupakan salah satu lembaga negara yang memiliki kewenangan dalam melakukan kekuasaan kehakiman yang merdeka untuk menyelenggarakan peradilan, bertanggung jawab untuk mengatur organisasi, personalia, administrasi, keuangannya sendiri, serta dapat mengatur lebih lanjut hal-hal yang diperlukan bagi kelancaran pelaksanaan tugas serta wewenangnya.
Anisotropic curve shortening flow in higher codimension

We consider the evolution of parametric curves by anisotropic mean curvature flow in ℝn for an arbitrary n⩾2. After the introduction of a spatial discretization, we prove convergence estimates for the proposed finite‐element model. Numerical tests and simulations based on a fully discrete semi‐implicit stable algorithm are presented. Copyright © 2007 John Wiley & Sons, Ltd.
Preventive Behaviors and Influencing Factors among Thai Residents in Endemic Areas during the Highest Epidemic Peak of the COVID-19 Outbreak

This research aims to investigate COVID-19 preventive behavior and influencing factors among Thai residents during the highest epidemic peak of COVID-19. Nine hundred and forty-six residents in five districts with high COVID-19 infection cases in Thailand were systematically included in this cross-sectional survey. The results showed that 87.2% and 65.2% of the residents had a high level of general knowledge and preventive measures, respectively. As to COVID-19 attitudes, poor levels of attitude among Thai residents were found in risk perception (53.6%) and mistrust issues (70.4%). Moreover, this study presents good preventive behavior (77.0%) among Thai residents. Multiple logistic regression showed that the influence factors of COVID-19 preventive behavior were the young age group (AOR 2.97, 95% CI 1.68–5.25), high income (AOR 1.38, 95% CI 1.03–1.86), and high level of general COVID-19 knowledge (AOR 2.21, 95% CI 1.64–2.96). The conclusion was that providing information on COVID-19 via social media was the key mechanism of policy action for increasing the level of COVID-19 preventive behavior during the highest epidemic peak in Thailand. In addition, the pandemic preparedness and response policy, with resident participation and involvement, could be recommended for the resilience of pandemic preparedness.
Energy distribution in the strongly interacting binary system SX Cassiopeiae

IUE spectra and optical scans covering the 110-680 nm interval were obtained in a search for a source which would resolve the anomalous presence of strong Balmer emission lines in the SX Cas eclipsing binary system, which is inconsistent with the usual spectral classification of the components as A6 III + G6 III. The IUE spectra unexpectedly show such strong emission lines as those of C IV, N V and Si IV, which require higher temperatures that the already anomalously high Balmer lines, and a continuum several magnitudes higher than the extrapolated continuum of an A6 star. A model in which the UV continuum originates in the transition zone between the A6 star and an accretion disk fails to reproduce the observed energy distribution. A revision of component spectral types to B7 + K3 III removes the UV excess.
Modes of noncircular fluid-filled boreholes in elastic formations

Dispersion curves for4 the modes of noncircular fluid-filled boreholes in homogeneous elastic formations are calculated with a boundary integral formulation. Results are displayed for the propagatory modes of several borehole shapes in both fast and slow formations. Any departure from circularity reduces the tube wave speed. Agreement with exact analytical results is obtained for elliptical boreholes, while a simple approximate relation involving borehole perimeter and area is verified for arbitrary cross sections. Higher-order surface modes such as the flexural and screw modes split into two distinct branches distinguished by their orientation with respect to the principal axes of the borehole cross section. Modal dispersion characteristics in elliptical boreholes may be approximately by scaled circular borehole results. In fast formations the effective scaled radii are related to transverse dimensions of the borehole, but in slow formations they are more closely related to local radii of curvature of th.
Zn Modification of Pd/TiO2/Ti Catalyst for CO Oxidation

The main goal of this study was to modify the activity of Pd/TiO2/Ti catalyst in the reaction of CO oxidation by the addition of Zn. Plasma electrolytic oxidation (PEO) of Ti wire was conducted to produce a uniform porous layer of TiO2. A mixture of Pd and Zn was then introduced by means of adsorption. After reduction treatment, the activity of the samples was examined by oxidation of 5% CO in a temperature range from 80–350 °C. Model catalysts with sufficient amounts of the metals for physico-chemical investigation were prepared to further investigate the reaction between Pd and Zn during CO oxidation. The structures and compositions of the samples were investigated using scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS), time-of-flight secondary ion mass spectrometry (TOF-SIMS), inductively coupled plasma mass spectrometry (ICP-MS), Fourier transform infrared (FTIR), and X-ray diffraction (XRD). Modification of Pd/TiO2/Ti catalyst by Zn with a Pd:Zn atomic ratio of 2:1 decreased the temperature of complete CO oxidation from 220 °C for Pd/TiO2/Ti to 180 °C for Pd-Zn/TiO2/Ti. The temperature of 50% CO conversion on Pd-Zn(2:1)/TiO2/Ti was around 55 °C lower than in the reaction on monometallic Pd catalyst. The addition of Zn to the Pd catalyst lowered the binding energy of CO on the surface and improved the dissociative adsorption of oxygen, facilitating the oxidation of CO. FTIR showed that the bridging form of adsorbed CO is preferred on bimetallic systems. Analysis of the surface compositions of the samples (SEM-EDS, TOF-SIMS) showed higher amounts of oxygen on the bimetallic systems.
A stability and numerical study of the solutions of a Timoshenko system with distributed delay

In this work, we analyze the stability of the semigroup associated with a Timoshenko beam model with distributed delay in the rotation angle equation. We show that the type of stability resulting from the semigroup is directly related to some model coefficients, which constitute the velocities of the system's component equations. In the case of stability of the polynomial type, we prove that rate obtained is optimal. We conclude the work performing a numerical study of the solutions and their energies, associated to discrete system.