bluuebunny/crossref_metadata_2025 huggingface dataset:
Oxidation kinetics of silicon strained by silicon germanium
Authors: Grabowski Jarosław , B. Beck Romuald
Published: April 2024

This paper reports on the studies of oxidation kinetics of silicon strained by silicon germanium layers. Experimental results of natural, chemical and thermal oxide formation are presented. The oxidation rates of silicon strained by SiGe layers have been compared with the rates of pure Si oxidation. The oxidation kinetics was studied using the parallel model proposed by Beck and Majkusiak. This model was fitted with good result to the obtained experimental data and the parameter that is most probably responsible for the strain effect was identified, as well as its dependence on Ge content in the SiGe layer.
Influence of the deposition process parameters on electronic properties of BN films obtained by means of RF PACVD
Authors: Firek Piotr , Werbowy Aleksander , Szmidt Jan , Kwietniewski Norber
Published: April 2024

This work presents results of investigations of electronic properties of undoped boron nitride (BN) films produced on Si substrates in the course of radio frequency (rf) PACVD process with boron triethyl (C2H5)3B as the boron source. The influence of the deposition process parameters on thickness and electronic properties (resistivity r, dielectric strength EBR) of BN films based on ellipsometry and I-V curve measurements at room temperature is studied. The obtained results show that proper selection of deposition process parameters allows BN layers with the required thickness and advantageous values of r and EBR to be fabricated. BN becomes therefore an interesting material for microelectronics applications.
Correlation between electric parameters of carbon layers and their capacity for field emission
Authors: Gronau Ryszard , Szmidt Jan , Czerwosz Elżbieta
Published: April 2024

The aim of this work is to study a possibility of field electron emission from carbon layers produced by radio frequency plasma chemical vapor deposition (RF PCVD) method. A correlation between electric parameters of the layers and the ability to produce electron emission is also studied through material (AFM) and electrical (C-V, I-V) characterization of the obtained layers. It is demonstrated that the layers deposited with the highest self-bias exhibit the highest capacity for electron emission.
Electrical characterization of ISFETs
Authors: Tomaszewsk Daniel , Yang Chia-Ming , Jaroszewicz Bohdan , Zaborowski Michał , Grabiec Piotr , G. Pijanowska Dorota
Published: April 2024

Methodology of electrical characterization of ISFETs has been described. It is based on a three-stage approach. First, electrical measurements of ISFET-like MOSFETs and extraction of basic parameters of the MOSFET compact model are performed. Next, mapping of the ISFET channel conductances and a number of other characteristic parameters is carried out using a semi-automatic testing setup. Finally, ISFET sensitivity to solution pH is evaluated. The methodology is applied to characterize ISFETs fabricated in the Institute of Electron Technology (IET).
Charge-pumping characterization of SOI devices fabricated by means of wafer bonding over pre-patterned cavities
Authors: Głuszko Grzegorz , Łukasiak Lidia , Kilchytska Valeriya , Ming Chung Tsung , Olbrechts Benoit , Flandre Denis , Raskin Jean-Pierre
Published: April 2024

The quality of the silicon-buried oxide bonded interface of SOI devices created by thin Si film transfer and bonding over pre-patterned cavities, aiming at fabrication of DG and SON MOSFETs, is studied by means of chargepumping (CP) measurements. It is demonstrated that thanks to the chemical activation step, the quality of the bonded interface is remarkably good. Good agreement between values of front-interface threshold voltage determined from CP and I-V measurements is obtained.
Characterization of SOI MOSFETs by means of charge-pumping
Authors: Głuszko Grzegorz , Szostak Sławomir , Gottlob Heinrich , Lemme Max , Łukasiak Lidia
Published: April 2024

This paper presents the results of charge-pumping measurements of SOI MOSFETs. The aim of these measurements is to provide information on the density of interface traps at the front and back Si-SiO2 interface. Three-level charge-pumping is used to obtain energy distribution of interface traps at front-interface
Arbitrary waveform generator for charge-pumping
Authors: Iwanowicz Marcin , Pióro Zbigniew , Jakubowski Andrzej
Published: April 2024

The paper presents a new signal generator for charge-pumping. Modular structure of the generator is discussed with special emphasis on signal-generation module consisting of five independent signal channels. Digital signal synthesis is chosen to minimize inaccuracies. Noise analysis is performed to demonstrate the validity of the design of signal channel. Calibration procedure is also discussed.
Electron mobility and drain current in strained-Si MOSFET
Authors: Walczak Jakub , Majkusiak Bogdan
Published: April 2024

Electron mobility and drain current in a strained-Si MOSFET have been calculated and compared with the mobility and drain current obtained for the relaxed material. In the first step, our mobility model has been calibrated to the “universal mobility” according to the available experimental data for unstrained Si MOSFETS. Then, employing the mobility parameters derived in the calibration process, electron mobility and the drain current have been calculated for strained-Si MOSFETs.
Modeling of the inverse base width modulation effect in HBT transistor with graded SiGe base
Authors: Zaręba Agnieszka , Łukasiak Lidia , Jakubowski Andrzej
Published: April 2024

A model of the position of the edge of emitter-base junction in the base and collector current pre-exponential ideality factor in HBT transistor with a SiGe base is presented. The model is valid for transistors with nonuniform profiles of doping and Ge content. The importance of taking into account the dependence of the effective density of states in SiGe on local Ge content and that of electron diffusion coefficient in SiGe on drift field for modeling accuracy is studied.
Comparison of 4H-SiC and 6H-SiC MOSFET I-V characteristics simulated with Silvaco Atlas and Crosslight Apsys
Authors: Stęszewski Jędrzej , Jakubowski Andrzej , L. Korwin-Pawlowski Michael
Published: April 2024

A set of physical models describing silicon carbide with fitting parameters is proposed. The theoretical I-V output and transfer characteristics and parameters of MOS transistors were calculated using Silvaco Atlas and Crosslight Apsys semiconductor device simulation environments
Optimization of an integrated optical crossbar in SOI technology for optical networks on chip
Authors: Kaźmierczak Andrzej , Drouard Emmanuel , Bri`ere Matthieu , Rojo-Romeo Pedro , Letartre Xavier , O’Connor Ian , Gaffiot Frederic , Lisik Zbigniew
Published: April 2024

In this paper a novel design for an optical network on chip (ONoC), enabling optical on-chip signal routing, is presented. Requirements for such a network are defined and the design of ONoC passive components is described and validated by experimental results.
Economic disparities among regions in Japan and the problem of the spread of information and communication equipment in the countryside
Authors: Oyaizu Hidetomo
Published: April 2024

Japan’s government believed that the development of ICT networks and penetration of information and communications equipment in the countryside reduce the economic and population disparities among regions. Since the latter half of the 90s, some local governments built "intelligent facilities" equipped with ICT network so as to foster the information and communications industry in their area as part of regional "informatization policy". However, "intelligent buildings" failed to attract information and communication companies, economic disparities among regions are in fact widening, while the macro economy is recovering and expanding. Main points are the contents of the regional informatization policy and the effect on the development of ICT networks and the information and communication industry. As "economy of concentration" works more in the information and communications economy, the development of ICT networks and related industries would concentrate economic power in urban areas. At present, it is essential for the regional informatization policy to develop information and telecommunications infrastructure that addresses the needs of residents who lack access to information, and to implement careful information literacy education for residents.
Planning System for Multi-Agent Based Reconfigurable Fixtures
Authors: Szynkiewicz Wojciech
Published: April 2024

This paper describes a concept of the planning system for self adaptable, reconfigurable fixtures composed of mobile locators (robotic agents) that can freely move on a bench and reposition below the supported part, without removing the part from the fixture. The main role of the planner is to generate the admissible plan of relocation of the mobile agents. A constrained nonlinear optimization problem is formulated to find the optimal locations for supporting heads.
SAC-OCDMA over Hybrid FTTx Free Space Optical Communication Networks
Authors: Sahbudin Ratna Kalos Zakiah , Chun Terry Tan Kwang , Anas Siti Barirah Ahmad , Hitam Salasiah , Mokhtar Makhfudzah
Published: April 2024

This paper presents an investigation of Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) over hybrid Fiber-to-the-x (FTTx) Free Space Optical (FSO) link under different weather conditions. FTTx and FSO are the last mile technologies that complement each other in delivering secure and high speed communication to customers’ residence or office. SAC-OCDMA is one of the potential multiplexing techniques that has become a research area of interest in optical communications and considered a promising technique for FTTx access networks. It is based on Khazani-Syed (KS) code with Spectral Direct Decoding (SDD) technique. All the components involved in the network were specified according to the available market product in order to simulate the actual environment as close as possible. The result shows that for bit error rate (BER) of 10−9, the network is able to perform with 20 km Single Mode Fiber ( SMF ) spanning from the central office (CO) and 1.48 km FSO range with transmission rate of 1.25 Gb/s during heavy rain.
Comparison of Wavelet Decomposition Coefficients Transmission Systems Using Splines and Classical Types of Modulation
Authors: Kutin Artem I.
Published: April 2024

Wavelets are becoming increasingly used as a tool for the analysis of non-stationary data. To transmit the coefficients resulting from the signal decomposition traditionally their combination into a single data packet is used, without including unequal energy contribution of each factor and impact of the decomposition level. This paper analyzes (at different transmission speeds) the signals properties produced by classical modulation methods and spline modulation for wavelet coefficients transmission proposed by the author. For all signal types the additive Gaussian noise is used as a noise disturbance.
The Analysis of OpenStack Cloud Computing Platform: Features and Performance
Authors: Grzonka Daniel
Published: April 2024

Over the decades the rapid development of broadly defined computer technologies, both software and hardware is observed. Unfortunately, software solutions are regularly behind in comparison to the hardware. On the other hand, the modern systems are characterized by a high demand for computing resources and the need for customization for the end users. As a result, the traditional way of system construction is too expensive, inflexible and it doesn’t have high resources utilization. Present article focuses on the problem of effective use of available physical and virtual resources based on the OpenStack cloud computing platform. A number of conducted experiments allowed to evaluate computing resources utility and to analyze performance depending on the allocated resources. Additionally, the paper includes structural and functional analysis of the OpenStack cloud platform.
A k-Nearest Neighbors Method for Classifying User Sessions in E-Commerce Scenario
Authors: Suchacka Grażyna , Skolimowska-Kulig Magdalena , Potempa Aneta
Published: April 2024

This paper addresses the problem of classification of user sessions in an online store into two classes: buying sessions (during which a purchase confirmation occurs) and browsing sessions. As interactions connected with a purchase confirmation are typically completed at the end of user sessions, some information describing active sessions may be observed and used to assess the probability of making a purchase. The authors formulate the problem of predicting buying sessions in a Web store as a supervised classification problem where there are two target classes, connected with the fact of finalizing a purchase transaction in session or not, and a feature vector containing some variables describing user sessions. The presented approach uses the k-Nearest Neighbors (k-NN) classification. Based on historical data obtained from online bookstore log files a k-NN classifier was built and its efficiency was verified for different neighborhood sizes. A 11-NN classifier was the most effective both in terms of buying session predictions and overall predictions, achieving sensitivity of 87.5% and accuracy of 99.85%.
Quaternion Feistel Cipher with an Infinite Key Space Based on Quaternion Julia Sets
Authors: Dzwonkowski Mariusz , Rykaczewski Roman
Published: April 2024

In this paper Quaternion Feistel Cipher (QFC) with an infinite key space based on quaternion Julia sets is proposed. The basic structure of the algorithm is based on the scheme proposed in 2012 by Sastry and Kumar. The proposed algorithm uses special properties of quaternions to perform rotations of data sequences in 3D space for each of the cipher rounds. It also uses Julia sets to form an infinite key space. The plaintext is divided into two square matrices of equal size and written using Lipschitz quaternions. A modular arithmetic was implemented for operations with quaternions. A computer-based analysis has been carried out and obtained results are shown at the end of this paper.
Digital Audio Broadcasting or Webcasting: A Network Quality Perspective
Authors: Gilski Przemysław , Stefański Jacek
Published: April 2024

In recent years, many alternative technologies of delivering audio content have emerged, with different advantages and disadvantages. In this paper pros and cons of digital audio broadcasting and webcasting transmission techniques in a network quality perspective are described. A case study of user expectations with respect to currently available services is analyzed, and the perceived quality of real digital broadcasted and webcasted radio stations is examined.
Monitoring of a Cloud-Based Environment for Resilient Telecommunication Services
Authors: Wilczewski Grzegorz
Published: April 2024

This article depicts insights and in-depth presentation of a new tool, specifically designed for Data Center resources monitoring purpose. It enables physical and virtual resources monitoring and is capable of performing advanced analysis on the resulting, measured data. Here in presented are exemplary scenarios conducted over the proprietary Data Center unit, delivering specific information on the behavior of the analyzed environment. Presented results create a base layer for a high level resiliency analysis of telecommunication services.
Properties of the Multiservice Erlang's Ideal Gradings
Authors: Hanczewski Sławomir , Kmiecik Damian
Published: April 2024

The design and optimization process of modern telecommunications networks is supported by a range of appropriate analytical models. A number of these models are based on the Erlang’s Ideal Grading (EIG) model, which is a particular case of non-full-availability groups. A possibility of the application of the EIG model results from the fact that telecommunications systems show properties and features distinctive to non-full-availability systems. No detailed studies that would decisively help determine appropriate conditions for the application of the EIG model for modeling of other non-full-availability groups, that would be models corresponding to real telecommunications systems, have been performed. Therefore, this article attempts to find an answer to the following question: what are the prerequisite conditions for the application of the EIG model and when the model can be reliably used?
LDAOR - Location and Direction Aware Opportunistic Routing in Vehicular Ad hoc Networks
Authors: Barootkar Marziyeh , Rahbar Akbar Ghaffarpour , Sabaei Masoud
Published: April 2024

Routing in Vehicular Ad hoc Networks (VANETs) has found significant attention because of its unique features such as lack of energy constraints and high-speed vehicles applications. Besides, since these networks are highly dynamic, design process of routing algorithms suitable for an urban environment is extremely challenging. Appropriate algorithms could be opportunistic routing (OR) where traffic transmission is performed using the store-carry-forward mechanism. An efficient OR mechanism, called Location and Direction Aware Opportunistic Routing (LDAOR), is proposed in this paper. It is based on the best neighbor node selection by using vehicles positions, vehicles directions, and prioritization of messages from buffers, based on contact histories and positions of neighbor nodes to destination. In LDAOR, when multiple nodes make contact with a carrier node, the closest neighbor node to destination is selected as the best forwarder. However, when only one node makes contact with the carrier node, the message is delivered to it if it moves toward the destination. Using the ONE simulator, the obtained performance evaluation results show that the LDAOR operates better than conventional OR algorithms. The LDAOR not only increases delivery rate, but also reduces network overhead, traffic loss, and number of aborted messages.
Energy-saving Algorithms for the Control of Backbone Networks: A Survey
Authors: Kamola Mariusz , Niewiadomska-Szynkiewicz Ewa , Sikora Andrzej
Published: April 2024

The rapid growth of energy demand by wired IP networks can be mitigated on hardware and software levels. While upgrading to more efficient transmission media still brings biggest savings, we take a look here at power-saving algorithms that combine the capability of setting networking equipment in arbitrary energy states which, combined with profound knowledge of the network traffic matrix, leads to considerable complex optimization problem formulations. Alternatively, lightweighted heuristic approaches are presented, built on much simpler network model but still capable to perform energy-efficient traffic engineering.
New Developments in a Two-criteria Approach to Dynamic Power Management in Energy-aware Computer Networks
Authors: Karbowski Andrzej , Jaskóła Przemysław
Published: April 2024

In the paper authors continue the development of a model of dynamic power management in energy-aware computer networks, where two criteria: energy consumption and the quality of service are considered. This approach is appropriate when the routing problem with fixed demands is inadmissible. The formulation introducing edge indices is modified and tests on problems of different sizes are performed.
A Cloud-aided Group RSA Scheme in Java 8 Environment and OpenStack Software
Authors: Jakóbik (Krok) Agnieszka
Published: April 2024

In this paper a RSA based security system enabling the group of users to upload the single masked message to the cloud environment is proposed. Data stored are encrypted using RSA algorithm. The data receiver is able to encrypt the message retrieved from the cloud environment using private key. Two different separate RSA systems are used. The presented approach is divided into three parts. First, an RSA key is generated for each sender. Then masking the message by newly chosen mask proposed individually by every member, additionally encrypted by individual RSA private key of each member is proceed. Next, encrypting the gathered message inside the cloud environment, using the public key of the receiver is executed. In the third step, the message is decrypted by the receiver using his private RSA key. The scheme reduces the computational load on users side and transfers calculations and storage effort to the cloud environment. The proposed algorithm was developed for storing and sending the data that originally are produced by a group of users, but the receiver of the data is single. It was implemented using Java 8 and OpenStack software. Numerical test of different key length for RSA are presented.
Radio Photonic Systems for Measurement of Instantaneous Radio Frequency with Amplitude-phase Modulation of Optical Carrier
Authors: Morozov Oleg Gennadyevich , Agliullin Timur Arturovich , Nasybullin Aydar R. , Vedenkin Denis A.
Published: April 2024

In this article questions related to the development instantaneous radio frequency measurement system based on application in them original ways of the amplitude-phase modulation transformation of single-frequency optical carrier by a radio signal in symmetric two-frequency and measuring “frequency-amplitude” transformation in fiber Bragg grating with special profile are considered. Such systems have broad prospects for use in telecommunications, military systems and for environmental monitoring.
An Efficient Early Iteration Termination for Turbo Decoder
Authors: Salija P. , Yamuna B.
Published: April 2024

Turbo code finds wide applications in mobile communication, deep space communication, satellite communication and short-range communication despite its high computational complexity and iterative nature. Realizing capacity approaching turbo code is a great achievement in the field of communication systems due to its efficient error correction capability. The high computational complexity associated with the iterative process of decoding turbo code consumes large power, introducing decoding delay, and reducing the throughput. Hence, efficient iteration control techniques are required to make the turbo code more power efficient. In this paper, a simple and efficient early iteration termination technique is introduced based on absolute value of the mean of extrinsic information at the component decoders of turbo code. The simulation results presented clearly show that the proposed method is capable of reducing the average number of iterations while maintaining performance close to that of fixed iteration termination. The significant reduction in iteration achieved by the method reduces decoding delay and complexity while maintaining Bit Error Rate performance close to standard fixed iteration turbo decoder.
A Practical Approach to Traffic Engineering using an Unsplittable Multicommodity Flow Problem with QoS Constraints
Authors: Białoń Paweł M.
Published: April 2024

The paper presents a practical approach to calculating intra-domain paths within a domain of a content-aware network (CAN) that uses source routing. This approach was used in the prototype CAN constructed as a part of the Future Internet Engineering project outcome. The calculated paths must satisfy demands for capacity (capacity for a single connection and for aggregate connections using the given path are considered distinctly) and for a number of path-additive measures like delay, loss ratio. We state a suitable variant of QoS-aware unsplittable multicommodity ow problem and present the solving algorithm. The algorithm answers to the needs of its immediate application in the constructed system: a quick return within a short and fairly predictable time, simplicity and modiability, good behavior in the absence of a feasible solution (returning approximately-feasible solutions, showing how to modify demands to retain feasibility). On the other hand, a certain level of overdimensioning of the network is explored, unlike in a typical optimization algorithm. The algorithm is a mixture of: (i) shortest path techniques, (ii) simpli ed reference-level multicriteria techniques and parametric analysis applied to aggregate the QoS criteria (iii) penalty and mutation techniques to handle the common constraints. Numerical experiments assessing various aspects of the algorithm behavior are given.
Variable-Weight Optical Code Division Multiple Access System using Diﬀerent Detection Schemes
Authors: Seyedzadeh Saleh , Moghaddasi Majid , Anas Siti Barirah Ahmad
Published: April 2024

In this paper a Variable Weight OCDMA (VWOCDMA) system using KS code with Direct Decoding (DD), Complementary Subtraction (CS) and AND subtraction detections is proposed. System performance is analyzed using mathematical approximation and software simulation. In mathematical analysis, the eﬀects of Phase-Induced Intensity Noise, shot noise and thermal noise are taken into account. Bit Error Rate of diﬀerent users is plotted as a function of received optical power per chip with varying the bit rates and number of active users. It has been shown that for diﬀerent bit rates and number of users, system using DD has better performance than the system applying CS and AND detection. Using DD scheme, the number of active users are 100 while this value is 27 and 25 in case of using CS and AND detection, respectively, when the received optical power per chip is –10 dBm.
On Radio-Frequency Spectrum Management
Authors: Strużak Ryszard , Tjelta Terje , Borrego Jose P.
Published: April 2024

This article review lessons learned from the uses of radio-frequency (RF) spectrum at national and international scales. Its main purpose is to stimulate debate on how to allow new wireless systems to operate, and to reduce the chronic apparent shortage of RF spectrum. The article aims at a better understanding of the mechanisms behind spectrum management and their pertinence to the public interest. The main contributions if the article are:• Considering RF spectrum management as a construct that structures radio services and, at the same time, distributes wealth and power;• Highlighting major doctrines of RF spectrum management;• Promoting spectrum management directly by its users;• Promoting cooperation and transparency.The several parts of the paper include the evolution of spectrum exploitation, and a foreseeable future by taking a closer look at major dilemmas and challenges. The paper ends with general comments and conclusions.
Network Dimensioning with Maximum Revenue Eﬃciency for the Fairness Index
Authors: Zalewski Grzegorz , Ogryczak Włodzimierz
Published: April 2024

Network dimensioning is a speciﬁc kind of the resource allocation problem. One of the tasks in the network optimization is to maximize the total ﬂow on given pairs of nodes (so-called demands or paths between source and target). The task can be more complicated when diﬀerent revenue/proﬁt gained from each unit of traﬃc stream allocated on each demand is taken into account. When the total revenue is maximized the problem of starvation of less attractive paths can appear. Therefore, it is important to include some fairness criteria to preserve connections between all the demands on a given degree of quality, also for the least attractive paths. In this paper, a new bicriteria ratio optimization method which takes into account both, the revenue and the fairness is proposed. Mathematical model is built in a form of linear programming. The solutions are analyzed with some statistical measures to evaluate their quality, with respect to fairness and eﬃciency. In particular, the Gini’s coeﬃcient is used for this purpose.
Verification of Staff Proficiency in the Calibration Laboratory on Voltage, Frequency, Resistance and Capacity Measurements
Authors: Warzec Anna , Marszalec Michał , Lusawa Marzenna
Published: April 2024

The Laboratory of Electrical, Electronic and Optoelectronic Metrology is accredited by the Polish Center of Accreditation for nearly two decades. Over time, the requirements of proficiency verification are growing continuously. In order to satisfy higher and higher of reliability demands the most promising staff proficiency verification estimators were examined for voltage, frequency, resistance and capacity measurements. The article presents measurement systems used for verification, analysis of results or simulations, and shows conclusion for selecting the best solution.
Optimization of Spectrum Sensing Parameters in Cognitive Radio Using Adaptive Genetic Algorithm
Authors: Chatterjee Subhajit , Dutta Swaham , Bhattacharya Partha Pratim , Roy Jibendu Sekhar
Published: April 2024

Quality of service parameters of cognitive radio, like, bandwidth, throughput and spectral efficiency are optimized using adaptive and demand based genetic algorithm. Simulation results show that the proposed method gives better real life solution to the cognitive radio network than other known approach.
Introduction to Big Data Management Based on Agent Oriented Cyber Security
Authors: Raiyn Jamal
Published: April 2024

This paper deals with information security and safety issues in public open spaces. Public open spaces include high streets, street markets, shopping centers, community gardens, parks, and playgrounds, each of which plays a vital role in the social, cultural and economic life of a community. Those outdoor public places are mashed up with various ICT tools, such as video surveillance, smartphone apps, Internet of Things (IoT) technologies, and biometric big data (called Cyber Parks). Security and safety in public places may include video surveillance of movement and the securing of personalized information and location-based services. The article introduces technologies used in Cyber Parks to achieve information security in big data era.
Etnoenfermería e interculturalidad en el parto de mujeres indígenas
Authors: Peraza de Aparicio Cruz Xiomara , Gonzalez Altamirano Fernanda Nicole , Vera Godoy Marcela
Published: April 2024

El estado de salud en las zonas indígenas se percibe por medio de la cosmovisión de sus propias creencias, costumbres, tradiciones y normas relacionadas con la salud o el tratamiento de la enfermedad. De tal manera incide en el proceso de atención de enfermería, la transculturalidad, quien se encarga de proporcionar los cuidados de enfermería en el puerperio (etapa que atraviesa la mujer una vez ya culminado su parto) en mujeres indígenas. Objetivo de estudio: detallar los cuidados de Enfermería en el postparto de mujeres indígenas. Material y Métodos: El enfoque metodológico analítico deductivo utilizado para el desarrollo de esta investigación está enfocado en la estrategia investigación documental a través de la revisión de fuentes bibliográficas en libros y revistas indexadas. Conclusión: Los cuidados culturales son un aporte para la Etnoenfermería ya que permite brindar los cuidados necesarios en cuanto en la medicina ancestral como en la medicina tradicional.
Ondas de choque y fisioterapia en lesiones osteomusculares
Authors: Chiriboga Navarrete Alba Sofía , Abril Núñez Abraham Rafael , Rivera Llumiquinga Diana Gabriela , Llumiquinga Pallasco Stalin Rafael
Published: April 2024

En la actualidad, los avances médicos y tecnológicos en fisiatría ponen a disposición novedosas opciones de terapias en lesiones osteomusculares. Uno de estas novedades, sin duda, es el tratamiento con ondas de choque, el cual ha revolucionado esta área por sus múltiples beneficios en el manejo de dichas lesiones. Consiste en la aplicación de ondas acústicas de alta energía en el área afectada para estimular la regeneración de tejidos y promover la curación. En consecuencia, el propósito de la presente investigación es plasmar las generalidades acerca de la fisioterapia de ondas de choque en lesiones osteomusculares. El enfoque metodológico de la investigación es una revisión bibliográfico – documental. De la revisión se resume que la terapia con ondas de choque es una técnica no invasiva que utiliza ondas acústicas máximas de alta energía para interactuar con músculos, tendones y huesos, provocando efectos curativos. Se indica en diversas lesiones musculoesqueléticas, incluidas la fascitis plantar, tendinopatías, fracturas con retardo de consolidación, epicondilitis y pseudoartrosis. Entre sus múltiples ventajas se encuentran evitar la cirugía y sus riesgos, por ende, permite una recuperación más rápida. El costo-beneficio es menor comparado con métodos tradicionales. Ahorro de tiempo, dado el número de sesiones, lo cual disminuye la asistencia a consulta. Este tipo de fisioterapia es una opción de tratamiento prometedora para personas que sufren lesiones osteomusculares y que no responden al tratamiento fisiátrico convencional, avalada por una extensa evidencia científica.
Consecuencias del bilingüismo español e inglés relacionado con los trastornos de la comunicación. Intervención terapéutica
Authors: Patiño Zambrano Viviana Paola , Plaza Martínez Michelle Estefanía , Sáenz Range María Dolores , Fuentes Durán María José
Published: April 2024

La globalización ha generado una de las características más singulares del mundo contemporáneo: la importancia de la adquisición de una segunda lengua como factor que garantiza la competitividad y el éxito. En consecuencia, el bilingüismo se ha convertido en un fenómeno cada vez más creciente. El bilingüismo trae diferentes consecuencias en los individuos, tanto positivas como negativas, según cada caso. Una de las consecuencias negativas atribuibles al bilingüismo está relacionada con los trastornos de la comunicación. El impacto de estos trastornos en niños bilingües va desde la dificultad para entender lo que se les dice hasta problemas de comprensión y de organización de pensamientos. El propósito de la presente investigación es plasmar algunas generalidades acerca de las consecuencias del bilingüismo, especialmente del español e inglés, relacionado con los trastornos de la comunicación, así como su intervención terapéutica. El enfoque metodológico de la investigación es una revisión bibliográfico – documental. Las personas bilingües español-inglés, especialmente los niños, pueden tener trastornos del lenguaje, tales como disfluencias, apraxia, disfemia, entre otros. Las intervenciones terapéuticas incluyen una diversidad de estrategias y abordajes. Básicamente, en niños bilingües español inglés con trastornos de la comunicación pueden aplicarse los mismos métodos terapéuticos que en sus pares monolingües. Un factor distintivo en este abordaje es la lengua en la que se interviene, la cual se recomienda sea la primera lengua.
Síndrome de Zollinger Ellison. Revisión actual
Authors: Terán López Hugo Mauricio , Loja Muzha Frank Danilo , Valdivieso Rodríguez Pablo Javier , Ortiz Viteri Grace María
Published: April 2024

El Síndrome de Zollinger-Ellison (ZES) es un trastorno raro del sistema digestivo caracterizado por la sobreproducción de ácido gástrico debido a tumores pancreáticos llamados gastrinomas. La presente investigación se enmarca dentro de una metodología de tipo bibliográfica documental. Ya que es un proceso sistematizado de recolección, selección, evaluación y análisis de la información, que se ha obtenido mediante medios electrónicos en diferentes repositorios y buscadores tales como Google Académico, Science Direct, Pubmed, entre otros, empleando para ellos los diferentes operadores booleanos y que servirán de fuente documental, para el tema antes planteado. En la revisión actual, se destaca la importancia del diagnóstico temprano y el manejo integral del ZES. El uso de inhibidores de la bomba de protones (IBP) y antagonistas de los receptores H2 de histamina ha mejorado el control sintomático, pero persisten desafíos en la selección del tratamiento óptimo, especialmente en casos atípicos y en pacientes con otras condiciones médicas. La cirugía sigue siendo la única opción curativa, aunque la controversia persiste en cuanto al momento y la extensión de la resección, especialmente en casos avanzados. Se enfatiza la importancia de una intervención quirúrgica temprana para prevenir la progresión tumoral y mejorar el pronóstico. Se necesitan más investigaciones para comprender mejor la fisiopatología del ZES y desarrollar tratamientos más efectivos.
Utilidad de la ecografía en la insuficiencia renal aguda y crónica
Authors: Tintin Criollo Silvana Elizabeth , Jiménez Jiménez Emilia Mabel , Romero Calderón Holger Omar , Ruiz Mejía Oswaldo Andrés
Published: April 2024

La ecografía desempeña un papel crucial en el diagnóstico y manejo tanto de la insuficiencia renal aguda como crónica. En la insuficiencia renal aguda, la ecografía permite la identificación rápida de obstrucciones del tracto urinario, como cálculos renales, así como evaluar el tamaño y la función renal. Esto es esencial para determinar la causa subyacente de la insuficiencia renal y orientar el tratamiento adecuado. En la insuficiencia renal crónica, la ecografía es fundamental para evaluar cambios estructurales a lo largo del tiempo, como la atrofia renal y el aumento del tamaño de los riñones debido a la hidronefrosis crónica o enfermedades como la enfermedad renal poliquística. Se realizó una revisión bibliográfica, haciendo una búsqueda exhaustiva en bases de datos académicas como PubMed, Scopus y Web of Science utilizando términos de búsqueda relacionados con "ecografía", "insuficiencia renal aguda", "insuficiencia renal crónica" y sus sinónimos. Una vez identificados los artículos relevantes, se procedió a analizar críticamente su contenido, extrayendo información necesaria para la investigación. La ecografía desempeña un papel clave en el diagnóstico y seguimiento de la insuficiencia renal aguda y crónica debido a su capacidad para proporcionar una evaluación detallada y no invasiva de la estructura renal y la vascularización.
Emprendimientos y Desarrollo Económico en la ciudad de Jipijapa
Authors: Loor Muñiz Aillys Katherine , Moreno-Ponce María Raquel , Sumba-Bustamante Ruth Yadira , Santistevan-Villacreses Karina Lourde
Published: April 2024

Ecuador destaca en América Latina por su significativa tasa de actividad emprendedora, alcanzando el 33,6%, según Global Entrepreneurship Monitor (GEM, 2019). Los emprendimientos en el país juegan un papel crucial en el desarrollo económico, contribuyendo al crecimiento económico, la generación de empleo y la competitividad en los mercados, tanto a nivel nacional como internacional. A pesar de su constante crecimiento, la dinámica empresarial en Ecuador enfrenta el desafío de adaptarse a un entorno empresarial cambiante e incierto. La clave para la supervivencia en mercados competitivos radica en la capacidad de las empresas ecuatorianas para abrazar la innovación como parte central de su estrategia empresarial (Monitor, 2018). Este artículo se enfoca en la relación entre el emprendimiento y el desarrollo económico, específicamente en la ciudad de Jipijapa, donde examina cómo las dinámicas emprendedoras han influido en su progreso desde 2019 hasta la fecha actual. La investigación utiliza una metodología que combina enfoques cuantitativos y cualitativos, con métodos analítico-sintéticos, inductivos y descriptivos. La encuesta, aplicada a los 84 emprendimientos de Jipijapa, constituye la técnica principal. Este enfoque permitirá analizar en profundidad la relación entre emprendimiento y desarrollo económico en la ciudad, además esta investigación surgió como parte del proyecto de investigación de la Carrera Administración de Empresas “Las finanzas y las mipymes como motor de reactivación económica”.
Implementasi Pendidikan Karakter Pada Program Kesetaraan Paket A di PKBM Lingkar Lontara Kota Makassar
Authors: Masita Iin , Amir Rudi , Asri Muhammad
Published: April 2024

The purpose of this study is so that researchers are able to achieve a deep understanding of how to implement the Implementation of Character Education. This study uses qualitative research with a case study approach. Data collection techniquesta donenamely Observation, Interview and Documentation with seven informants. The results showed that implements character education by Providing exemplary among school members such as the institution exemplifies good behavior. Involve all Stakeholders such as tutors involved in deliberations. Building and Complying with School Norms, Rules and Traditions such as providing order. Developing School Branding by providing adequate facilities and infrastructure. Developing Literacy Activities by providing reading programs.
Implementasi Pengembangan Karakter di Sekolah Dasar
Authors: Armitasari Armitasari
Published: April 2024

The purpose of this study was to describe the implementation of character education at SDN 026 Bulo Polewali Mandar and the obstacles faced by teachers in implementing character education at SDN 026 Bulo Polewali Mandar. This research is a qualitative descriptive study. Observations, interviews and documentation are used as data collection techniques. The main tools are researchers using interview guides and observation guides. The method of analysis of this research is data reduction, data representation and verification/inference. The results of this study indicate that the implementation of character education at SDN 026 Bulo Polewali Mandar can be seen from integration with self-development programs, integration with learning activities and character values developed by the school.
Hubungan Antara Pengetahuan Tentang Ekosistem Dengan Sikap Peduli Lingkungan Pada Siswa SMA Di Mataram
Authors: Niatun Mar , Purwati Nining
Published: April 2024

Ecosystem is defined as a reciprocal relationship between living things and their environment. While the attitude of caring for the environment is a feeling that someone has to improve and manage the environment. This study aims to determine the relationship between ecosystem knowledge and environmental care attitudes. The population in this study was class X IPA SMA 1O Mataram with a sample of 25 student,which was taken through a purposive sampling technique. The research instrument used was quantitative consisting of tests and questionnaires. Data on the results of tests of knowledge and attitude towards environmental care using a simple regression test with the help of the SPSS application.The results showed that there was a relationship between ecosystem knowledge and students environmental care attitudes with a sig. 0,043 < 0,05, with a positive relationship, the degree of correlation is moderate, and the R value is 0,408.Ekosistem diartikan sebagai hubungan timbal balik antara makhluk hidup dengan lingkungannya. Sedangkan sikap peduli lingkungan adalah suatu perasaan yang dimiliki seseorang untuk memperbaiki dan mengelola lingkungan. Penelitian ini bertujuan untuk mengetahui hubungan antara pengetahuan ekosistem dengan sikap peduli lingkungan. Populasi pada penelitian ini yaitu siswa kelas X IPA SMA 10 Mataram dengan sampel 25 siswa, yang diambil melalui teknik purposive sampling. Instrumen penelitian yang digunakan adalah  kuantitatif yang terdiri atas soal tes dan angket. Data hasil tes pengetahuan dan sikap peduli lingkungan menggunakan uji regresi sederhana dengan bantuan aplikasi SPSS. Hasil penelitian menunjukkan terdapat adanya hubungan antara pengetahuan ekosistem dengan sikap peduli lingkungan siswa dengan nilai sig. 0,043 < 0,05, dengan bentuk hubungan positif, derajat hubungan korelasi sedang, dan nilai R sebesar 0,408.
Kepemimpinan Transformasional Kepala Sekolah di Sekolah Menengah kejuruan
Authors: Andriani Nirta , Kamaruddin Syamsu A
Published: April 2024

Tujuan penelitian untuk mengetahui kepemimpinan transformasional kepala sekolah di Sekolah Menengah Kejuruan. Pendekatan penelitian ialah kualitatif dengan jenis penelitian deskriptif. Penelitian ini dilaksanakan di SMK Negeri 1 Makassar. Sumber data dalam penelitian ini adalah kepala sekolah dan guru. Teknik pengumpulan data berupa wawancara, observasi dan dokumentasi. Teknik analisis data menurut Miles dan Huberman. Pengecekan dan keabsahan menggunakan trianggulasi data. Hasil penelitian ini menunjukkan bahwa (1) Kepemimpinan transformasional kepala sekolah secara keseluruhan berkriteria sangat baik. Ini menunjukkan kepala sekolah telah melaksanakan indikator-indikator kepemimpinan transformasional seperti: Idealisasi Pengaruh (Idealized Influence), Stimulasi Intelektual (Intellectual Stimulation), Konsiderasi Individual (Individualized Consideration), Motivasi Inspirasional (Inspirational Motivation) terlaksana dengan sangat baik. (2) Faktor-faktor pendukung dan penghambat kepemimpinan transformasional kepala sekolah yaitu, Faktor pendukung antara lain: kerjasama, komunikasi terbuka, ide-ide kreatif dalam melakukan kegiatan-kegiatan inovatif, ketersediaan sarana dan prasarana, visi dan misi, pengetahuan dan kemampuan, serta kedisiplinan, dan Faktor penghambat antara lain manajemen waktu yang belum terorganisir dengan baik oleh guru dan staf, beberapa guru yang tidak percaya diri dalam melaksanakan tugasnya sehingga masih butuh bimbingan dari kepala sekolah, adanya kecemburuan sosial diantara para guru dan staf terhadap pemberian nilai KKG oleh kepala sekolah, keterbatasan waktu dalam melaksanakan semua program yang ada, kepala sekolah terkadang harus mengisi jam mengajar guru ketika ada guru yang terlambat masuk di kelas untuk mengajar.
Perencanaan Strategik Kepala Sekolah Dalam Peningkatan Kinerja Guru di Sekolah Menengah Kejuruan
Authors: Musfhyradillah Asry , Ansar Ansar
Published: April 2024

Tujuan penelitian ini adalah untuk mengetahui dan menggali lebih dalam tentang bagaimana perencanaan strategik kepala sekolah dalam peningkatan kinerja guru di Sekolah Menengah Kejuruan. Penelitian ini menggunakan penedekatan kualitatif dengan jenis penelitian deskriptif. Sumber data dalam penelitian ini yaitu berupa wawancara, observasi, dan dokumentasi. Teknik analisis data menggunakan model pengumpulan data, reduksi data, penyajian data, dan penarikan kesimpulan berdasarkan isu yang muncul. Hasil penelitian ini menunjukkan bahwa perencanaan strategik kepala sekolah di Sekolah Menengah Kejuruan sudah baik. Dilihat dari visi misi, merupakan  acuan penting untuk memudahkan dan memahami dengan jelas tujuan pekerjaan guru. Dalam hal nilai, guru menenamkan nilai pada dirinya agar siswa akan mencermikan nilai yang di terapkan. Sasaran strategik, mengikutkan guru-guru untuk mengikuti pelatihan. program yang dilakukan oleh kepala sekolah dalam peningkatan kinerja guru yaitu: 1) Workshop pengembangan instrumen penilaian hasil belajar bagi semua guru mata pelajaran. 2) Peningkatan Kualitas Guru Kelas, Mata Pelajaran. 3) Workshop Menulis Kreatif Guru dan Siswa. Faktor pendukung yang berupa beberapa guru muda atau junior yang mengajarkan guru senior menggunakan komputer dan alat-alat teknologi lainnya. Dan faktor penghambatnya yaitu berupa masalah fasilitas sarana dan prasarana yang belum memadai.
The effect of vortex generators having Clark-Y airfoil on tapered swept-back wing
Authors: Seyhan Mehmet , Çolak Aleyna , Sarıoğlu Mustafa
Published: April 2024

In the experimental study, the effects of vortex generators (VGs) having Clark-Y airfoil and triangular VGs are investigated. The tests were carried out on a tapered swept-back wing at Re = 6.0×104 using counter-rotating vortex generators having Clark-Y airfoil at five different locations that are x/c= 0.1, 0.2, 0.3, 0.4, and 0.5 and triangular VGs at x/c=0.1 location. A load cell is used to measure forces at angles of attack (AoA) ranging from 0° to 30°. It is observed that the maximum lift coefficient (CLmax) and aerodynamic performance of VGs having Clark-Y airfoil decrease when the position of the vortex generators changes from 0.1 to 0.5. The optimal results obtained from the study show that the tapered swept-back wing with the VGs having Clark-Y airfoil exhibits a significant increase of 37.5% in the CLmax and approximately 55% in the lift to drag ratio (L/D) at x/c=0.1 compared to the baseline. At low AoA, the VGs having Clark-Y airfoil provided better lift, whereas at high AoA, the triangular VGs provided better lift.