bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluación de la Calidad Técnica Científico en el Servicio de Emergencia del Hospital Abel Gilbert Pontón Año 2018 – 2019
Authors: Guerrero Lambida Rosa Angélica 
Published: April 2019

La mejora continua de la calidad asistencial dentro de los sistemas nacionales de salud es uno de los objetivos principales para el MSP e instituciones privadas. Uno de los componentes a evaluar es la calidad técnico científica para lograr la eficiencia, eficacia y efectividad del servicio evaluado para lo cual se han elaborado varias herramientas de identificación y evaluación de problemas, siendo uno de ellos los indicadores de salud.
Este estudio fue de tipo transversal retrospectivo de carácter analítico, en el que se evalúa la calidad técnico científico del área de emergencia de una forma objetiva por medio de indicadores
El universo de 1550 pacientes atendidos en 6 meses, se tomó una muestra probabilística de 300 casos clínicos tomados al azar, de las 10 patologías más frecuentemente atendidos en el área de emergencia del hospital de especialidades Abel Gilbert Pontón con su respectivo protocolo; se consideró la información obtenido en los formatos digitálicos 008 y 005 durante el periodo de julio del 2018 hasta enero del 2019.
La muestra fue compuesta por 300 historias clínicas, los valores obtenidos serán los numeradores y los denominadores de los indicadores elaborados para la evaluación técnica científica del área de emergencia con un valor estándar inicial mayor del 70% como óptimo según las guías españolas de Andalucía y OMS que se tomaron como referencia sobre calidad asistencial.
Como resultado se obtuvo que la evaluación realizada de la calidad técnico científico del servicio de emergencia identificó como principal problema la demora en la toma de decisiones en relación a la conducta definitiva con los pacientes, conduciendo a una estancia mayor a las 6 horas, valor que no está en relación a una calidad asistencial optima y que se relacionaría con la falta de socialización de los protocolos del servicio y actualización de los mismos que fueron otros de los problemas identificados, el siguiente paso es la elaboración de planes de acción como parte del ciclo de mejora continua en la calidad asistencial.
Análisis de indicadores de la calidad asistencial sanitaria del Centro de Salud “A” Fuerte Militar Marco Aurelio Subía, en el periodo comprendido entre julio y diciembre del 2018
Authors: Zabala Chico Mayra Jacqueline , Arévalo Méndez Víctor Manuel , Cáceres Manzano Paulina Verónica 
Published: April 2019

Se realiza el análisis en una muestra de 100 historias clínicas de pacientes atendidos en el Centro de Salud “A” Fuerte Militar Marco Aurelio Subía, en el periodo entre julio y diciembre del 2018 para valorar la calidad de los registros que se incluyen en dichas historias, con la finalidad de analizar los indicadores de la calidad de atención sanitaria en el primer nivel de atención, e impulsar la mejora continua de la calidad en el Centro de Salud “A” FM MAS.
Se incluyeron 100 Historias clínicas de atenciones registradas en la consulta externa en el periodo comprendido entre julio y diciembre del 2018, en cada una se calificó 5 parámetros con un total 1000 puntos, tomando como referencia el modelo propuesto por el Ing. Luis Eduardo Pavón y Dra. María Angélica García en el libro La Auditoria Médica como Herramienta de Control en la Administración Hospitalaria en el Ecuador 2017, obteniéndose como resultado que 11 historias clínicas alcanzaron un puntaje entre 72% y 78%, equivalente a BUENO, y 89 historias clínicas alcanzaron un puntaje entre 66% y 70% equivalente a MALO
Borderline Personality Disorder and Religiosity: Exploring the Relationship
Authors: Hosack Lisa 
Published: April 2019

The negative effects of borderline personality disorder (BPD) are widely documented. And while religiosity has been found to be generally beneficial for individuals with clinical disorders, little is known about the relationship of religiosity and personality disorders, including BPD. The purpose of this quantitative, cross-sectional study was to examine the relationship between BPD and two important components of religiosity. The first was termed religious quest and was defined in the study as the level of one’s internal openness to faith and spirituality. The other was defined as religious engagement and was defined in the study as the external, behavioral marks of religious faith such as prayer and attendance at religious events. A survey comprised of several validated measures was administered to undergraduate students within a large public university in the Midwest (N = 466).
Reconciliation Reconsidered: Advancing the National Conversation on Race among Christian Social Workers
Authors: Smith Brice Tanya 
Published: April 2019

This paper is based upon a keynote address that was given by the author for the Alan Keith-Lucas Lecture at the 2017 North American Association of Christians in Social Work Convention in Charlotte, North Carolina. The theme of this convention was Advocating for Peace, Justice and Reconciliation. The author entitled her talk, “Reconciliation Reconsidered: A conversation about race among Christian social workers.” This compelling conversation challenges Christian social workers to examine the role they may be taking in reconciling the racial, social, gender, and economic injustice that exists within their communities. The author also conducts a historical survey of the works of Alan-Keith Lucas and discusses Lucas’ views about the role that Christian social workers should take in reconciling racial injustice.
Faut-il brûler les ponts ? La poétique mode d’emploi
Authors: Meshkinfam Gabriel 
Published: April 2019

La poétique est un faire, un geste, une manœuvre que le XXe siècle n’a cessé d’interroger selon une triple dimension : sa spatialité, son articulation avec la pensée et sa mise en scène du concept de différence. Pour rendre compte de ce mouvement si contemporain cet article entend proposer une traversée générale de ces considérations sur la poétique selon un schéma simple : la construction d’un pont. D’abord, sa conception, c’est-à-dire la compréhension de son essence ambivalente, oscillant toujours entre le lien et la disjonction. Puis, l’établissement de ses fondations autour du concept genettien de spatialité linguistique. Viennent ensuite les différentes considérations techniques et pragmatiques où la poésie jouera le rôle de maquette. Et parmi ces considérations, la question fondamentale : est-il nécessaire de détruire (ou déconstruire) le pont ?
Aperture Antennas
Authors: Kozakoff Dennis J. 
Published: November 2024

Abstract
Aperture antennas include those having large planar areas such as parabolic reflectors. The classic technique used in the calculation of aperture antenna radiation patterns is applying the equivalence principle followed by physical optics approximations. The equivalence principle is based on replacing the physical antenna aperture with a virtual antenna aperture consisting of an ensemble of Huygens sources, each of which is a source of spherical wavelets. The total pattern is taken as a construction of these Huygens secondary waves. It can be further shown that a simple Fourier transform relation exists between the amplitude distribution of these sources and the radiation pattern in angle space. For many aperture antenna problems, the distribution can be assumed from theoretical considerations or determined empirically from near‐field probes of the aperture fields. But there are many other antennas such as horn antennas, where a virtual aperture can also be constructed in front of the physical aperture in order to model and analyze the antenna. Thus, an aperture antenna has more to do with the method used to model the antenna than its actual form.
For most aperture antenna problems, these classical techniques are adequate and give reasonably accurate results. However, more modern analysis techniques such as the method of moments (MoM), the finite‐element method (FEM), and the finite‐difference time‐domain (FDTD) method are also discussed. These methods are more robust and accurate, but the complexity and large amount of computer resources required must be traded off with the accuracy desired. Generally, they are infeasible for high‐gain antennas.
Dielectric Loaded Antennas
Authors: Shafai L. 
Published: November 2024

Abstract
Dielectric media affect the wave propagation by their reflective index. Their use in antennas can provide a number of diverse benefits. In applications such as high‐gain antennas, they influence the phase of the propagating waves, and thus influence the direction and gain of the transmitted waves. Lens antennas are typical examples that can be used alone, or in conjunction with other antennas, such as horn and microstrip antennas, to enhance their gain. In other applications like dielectric loaded horns and waveguides the use of dielectric inside them controls the excitation of various modes and thus the performance of the horns. Hybrid and multimode horns are examples that can improve the horn performance for reflector feed applications. Similarly, dielectric resonator antennas can control and improve the radiation performance by controlling the excitation and the phase of the wave propagating through them. Dielectrics being non‐conducting can also be used to insulate and, thus, isolate the antennas from living tissues, in medical treatment and studies. Large permittivity of some dielectrics reduces the signal wavelength and in areas of small antennas can be used to reduce the antenna dimensions. Finally, the dielectric permittivity also influences the wave impedance and can be used to match the impedance of antennas to the radiation media and enhance their gain. This article provides a brief review of some of these applications.
Radiowave Propagation in Multipath Channels
Authors: Koilpillai R. D. 
Published: November 2024

Abstract
With the rapid growth in wireless communications, there is considerable interest in radiofrequency (RF) propagation and RF channel modeling in the 400 MHz–2 GHz band, where multipath propagation is a characteristic property. This article presents a comprehensive overview of the RF signal variations related to propagation in multipath fading channels. The diverse phenomena that cause signal variations are described via mathematical models. The different types of fading and their salient features are discussed in detail. The goal of this article is to provide a mathematical and an engineering‐oriented treatment of multipath fading, thereby providing the reader with the necessary tools and the information to understand the different RF propagative issues and how they impact wireless communications.
Sky Wave Propagation at Medium and High Frequencies
Authors: Davies Kenneth 
Published: November 2024

Abstract
In this article, we shall discuss the following topics: 1. Basic physical properties of sky wave propagation (namely, refraction, reflection, penetration, and absorption) 2. relationships between vertical propagation and oblique propagation 3. ionospheric models 4. characteristics of medium frequencies 5. characteristics of high frequencies 6. prediction programs for ionospheric sky wave performance 7. real‐time channel evaluation
Microwave Superconductor Devices
Authors: Sans Carles , Tzuzuki Genichi 
Published: November 2024

AbstractSeveral superconductor device applications in the microwave area are very briefly discussed in the introduction. After that, the article focuses mostly on superconducting filters since it seems that the application that can grow first into commercial success is also the application that generates more interest. First, the basic categories of response used for superconductor filters are discussed. One of them, the quasielliptic response, is preferred for real applications because it provides better cutoff performance. However, filter synthesis and realization of this response is not as straightforward as the Chebyshev response. The synthesis of quasielliptic responses can be done by the cross‐coupling technique, one of the cutting‐edge topics in the microwave filter field.Superconducting technology has opened new horizons in the microwave filter field because superconductors can realize filtering responses that are not realizable with other technologies. Superconductor technology allows very compact planar‐type filter circuits with lumped‐element or distributed structures with very high rejection performance. Many different designs and topologies of superconductor filters have been reported in technical journals and international conferences since the 1990s and to the present, but only several of those can be introduced here in the limited number of pages.Finally, the application of superconductor filters in cellular networks in a form of cryogenic front‐end receivers is discussed. Various different technologies and their integration procedures are considered, such as low‐noise amplifiers, cryogenics, vacuum mechanics, and electronics. Reliability is one of the most important issues in the real world for these applications. Field test results of superconductor filter front‐end systems for TDMA and CDM a applications are also discussed.
Superconducting Cavity Resonators
Authors: Padamsee Hasan 
Published: November 2024

Abstract
A key component of the modern particle accelerator is the device that imparts energy to the charged particles. This is an electromagnetic radio frequency (RF) cavity resonating at microwave frequencies typically between 50MHz and 3000 MHz. Superconducting cavities economically provide high CW operating fields. Another benefit is that superconducting cavities can be designed to have a large beam aperture that reduces the beam cavity interactions, allowing higher beam quality and higher beam current. There are two distinct types of superconducting cavities, depending on the velocity of the particles. The first category is for accelerating charged particles that move at nearly the speed of light, such as electrons in a high‐energy linear accelerator [e.g., at TJNAF at Jefferson Lab in Newport News, VA] or a storage ring [e.g., LEP at CERN in Switzerland]. The second type is for particles that move at a small fraction (e.g., 0.01 to 0.3) of the speed of light, such as the heavy ions emerging from a dc highvoltage Van de Graaff accelerator.
Amplitude Shift Keying
Authors: Xiong Fuqin 
Published: November 2024

Abstract

Amplitude shift keying (ASK) is one of the earliest and simplest digital modulations used in telecommunications. The simplest form of ASK is the
ON
–
OFF
keying (OOK). To improve bandwidth efficiency,
M
‐ary ASK (MASK) must be used. MASK can be coherently demodulated and noncoherently demodulated, and the former has a lower bit error probability but a more complex demodulator. The signal expression, power spectral density, block diagrams of modulators and demodulators (coherent and noncoherent), and bit error rate, are described in detail for each ASK scheme. Comparisons are made between various ASK schemes and between coherent MASK and the popular MPSK (
M
‐ary phase shift keying). Advanced ASK‐based modulation schemes, namely, QAM (quadrature amplitude modulation) and coherent and noncoherent ASK‐OFDM (orthogonal frequency‐division multiplexing) are also briefly described.
Combline Filters
Authors: Wang Chi 
Published: November 2024

AbstractThe combline filter, which was first introduced by Matthaei in 1963, is one of the most commonly used bandpass filters in many communication systems and other microwave applications. With modern filter synthesis theory, combline filters having elliptic function frequency responses can be realized by using the nonadjacent couplings. In this article, the lumped‐element lowpass filter prototype is first presented. The equations for conversion between the lowpass prototypegvalues and the impedance/admittance inverters or coupling matrix elements are given. Matthaei's approximated design equations and procedures using Getsinger's design data for rectangular bars, and Cristal's design curves for cylindrical rods are described for design of direct‐coupled combline filters with narrow to moderate bandwidth. A compact tapped‐line input/output coupling configuration is addressed. The general filter topologies are then discussed. The commonly used cascaded triplet and cascaded quadruplet sections for creating more complicated filter structures are presented. Typical combline applications, including multiplexers, dielectric‐filled miniature combline filters, and linear phase or delay filters are presented.
Antenna Arrays for Mobile Communications
Authors: Paulraj Arogyaswami , Gesbert David , Papadias Constantinos 
Published: November 2024

Abstract
Smart antennas constitute a promising but still emerging technology. Spacetime processing algorithms provide powerful tools to enhance the overall performance of wireless cellular networks. Improvements, typically by a factor of 2 in cell coverage or capacity, are shown to be possible according to results from field deployments using simple beamforming. Greater improvements can be obtained from some of the more advanced spacetime processing solutions described in this article.
Pulse Compression
Authors: Biegert Jens , Diels Jean-Claude 
Published: November 2024

AbstractThree‐wave interaction in a nonlinear medium can be used to efficiently compress transform‐limited laser pulses with the additional option of shifting the center light frequency.After introducing the general mechanism together with a simple numerical model, we derive a more extensive and complete numerical model to study pulse compression of long (ps) and ultrashort (fs) pulses. A comparison between theory and experiment is given, and limitations of the models are established.
Low Temperature Co‐Fired Ceramic (LTCC) Technology in RF and Microwave Engineering
Authors: Wu Ke-Li 
Published: November 2024

AbstractThis article outlines the low‐temperature cofired ceramic (LTCC) technology, from its historic evolvement to the basics of dielectric material properties and manufacturing process with emphasis on the design concept of multilayer LTCC RF and microwave embedded passive devices and modules. A detailed table containing most of commonly seen passive components is provided with layouts of their high‐frequency circuit models (Table 4 in the article).
Printed Inductors
Authors: Ooi Ban-Leong , Xu Dao-Xian 
Published: November 2024

AbstractA new efficient method for calculating the inductance value of a spiral inductor with special emphasis on the nonuniform current distribution on the metallic trace is described. Based on the partial inductance method, a unified approach for modeling the eddy current and skin depth of spiral inductor has been presented. Our proposed method is validated with experimental results, and good agreement has been obtained.
Electromagnetics, Time‐Domain
Authors: Bushyager Nathan A. , Tentzeris Manos M. 
Published: November 2024

AbstractIn this article, various time‐domain electromagnetic simulation methods, including the finite‐difference time‐domain (FDTD), transmission‐line matrix (TLM), finite‐element time‐domain (FETD), and multiresolution time‐domain (MRTD) techniques are discussed in detail along with grid optimization approaches. In addition, conformal meshing techniques, specifically finite‐volume time‐domain (FVTD) and generalized Yee FDTD methods are briefly descirbed. Also included is a discussion of code parallelization, grid excitation, absorbing boundary conditions, antenna modeling, and methods that can be used to deriveSparameters from time‐domain output data.
Heterojunction Bipolar Transistor
Authors: Prasad Jayasimha 
Published: November 2024

AbstractThe major advances in heterojunction bipolar transistor (HBT) technology since the mid‐1980s is covered in this article. The cutoff frequency (fT) and the maximum oscillation frequency (fmax) have reached record highs. Indium phosphide (InP) HBTs have shown (fT) and (fmax) in excess of 450 GHz and gate delays of 1.95 ps. Silicon–germanium (SiGe) HBTs have demonstrated 350 GHz (fT) and gate delays of 3.6 ps. The improved performance of the devices has resulted in impressive circuit results. Static frequency dividers operating at 152 GHz has been reported in InP HBT technology. SiGe HBT technology has demonstrated dynamic frequency dividers running at 110 GHz. Multiplexer/demultiplexer (MUX/DMUX) circuits operating at 40 Gbps (gigabits per second) were demonstrated with InP HBTs. On the other hand, 50‐Gbps 4–1 MUX/DMUX circuits have been shown with SiGe HBTs.
PIN Diodes
Authors: Fathy Aly E. , Rosen Arye 
Published: November 2024

Abstract
A PIN diode is a semiconductor device that operates at RF and microwave frequencies as a variable resistor in the forward direction.
The PIN diode is useful for leveling, limiting, and amplitude modulating an RF signal, when the control current is varied continuously. However, the device can be used for pulse modulating, attenuating, and phase shifting of an RF signal if the control current is turned ON or OFF, or in discrete steps. In addition, the PINs small size, weight, high switching speed, and minimized parasitic elements make it ideally suited for miniature, broadband RF signal applications.
Schottky Barriers
Authors: Ashok S. 
Published: November 2024

Abstract
The Schottky barrier, one of the earliest and simplest semiconductor interfaces studied, consists of a metal in contact with a semiconductor.
The silicide Schottky barriers are of interest from both fundamental and practical viewpoints, as the MS interface here is buried inside the semiconductor bulk, thus obviating the deleterious influence of surface oxides and other contamination.
We will consider here two basic models, the earlier one due to Schottky and the later one inspired by Bardeen's postulation of the surface states.
Electromagnetic Field Measurement
Authors: Kanda Motohisa 
Published: November 2024

Abstract
Various electromagnetic field sensors for measuring radiofrequency (RF) electric and magnetic fields are discussed.
Throughout the discussion, the interplay between measured quantities and predicted (modeled) quantities is emphasized. The ability of measurements and the restrictions imposed by rigorous theoretical analysis of given models are discussed for the frequencies from 10 kHz to 40GHz and upward.