bluuebunny/crossref_metadata_2025 huggingface dataset:
New Systolic Array Algorithms and VLSI Architectures for 1-D MDST
Authors: Chiper Doru Florin , Cracan Arcadie
Published: July 2023

In this paper, we present two systolic array algorithms for efficient Very-Large-Scale Integration (VLSI) implementations of the 1-D Modified Discrete Sine Transform (MDST) using the systolic array architectural paradigm. The new algorithms decompose the computation of the MDST into modular and regular computational structures called pseudo-circular correlation and pseudo-cycle convolution. The two computational structures for pseudo-circular correlation and pseudo-cycle convolution both have the same form. This feature can be exploited to significantly reduce the hardware complexity since the two computational structures can be computed on the same linear systolic array. Moreover, the second algorithm can be used to further reduce the hardware complexity by replacing the general multipliers from the first one with multipliers with a constant that have a significantly reduced complexity. The resulting VLSI architectures have all the advantages of a cycle convolution and circular correlation based systolic implementations, such as high-speed using concurrency, an efficient use of the VLSI technology due to its local and regular interconnection topology, and low I/O cost. Moreover, in both architectures, a cost-effective application of an obfuscation technique can be achieved with low overheads.
Spatiotemporal Thermal Variations in Moroccan Cities: A Comparative Analysis
Authors: Derdouri Ahmed , Murayama Yuji , Morimoto Takehiro
Published: July 2023

This study examines the Land Surface Temperature (LST) trends in eight key Moroccan cities from 1990 to 2020, emphasizing the influential factors and disparities between coastal and inland areas. Geographically weighted regression (GWR), machine learning (ML) algorithms, namely XGBoost and LightGBM, and SHapley Additive exPlanations (SHAP) methods are utilized. The study observes that urban areas are often cooler due to the presence of urban heat sinks (UHSs), more noticeably in coastal cities. However, LST is seen to increase across all cities due to urbanization and the degradation of vegetation cover. The increase in LST is more pronounced in inland cities surrounded by barren landscapes. Interestingly, XGBoost frequently outperforms LightGBM in the analyses. ML models and SHAP demonstrate efficacy in deciphering urban heat dynamics despite data quality and model tuning challenges. The study’s results highlight the crucial role of ongoing urbanization, topography, and the existence of water bodies and vegetation in driving LST dynamics. These findings underscore the importance of sustainable urban planning and vegetation cover in mitigating urban heat, thus having significant policy implications. Despite its contributions, this study acknowledges certain limitations, primarily the use of data from only four discrete years, thereby overlooking inter-annual, seasonal, and diurnal variations in LST dynamics.
A Novel No-Reference Quality Assessment Metric for Stereoscopic Images with Consideration of Comprehensive 3D Quality Information
Authors: Shen Liquan , Yao Yang , Geng Xianqiu , Fang Ruigang , Wu Dapeng
Published: July 2023

Recently, stereoscopic image quality assessment has attracted a lot attention. However, compared with 2D image quality assessment, it is much more difficult to assess the quality of stereoscopic images due to the lack of understanding of 3D visual perception. This paper proposes a novel no-reference quality assessment metric for stereoscopic images using natural scene statistics with consideration of both the quality of the cyclopean image and 3D visual perceptual information (binocular fusion and binocular rivalry). In the proposed method, not only is the quality of the cyclopean image considered, but binocular rivalry and other 3D visual intrinsic properties are also exploited. Specifically, in order to improve the objective quality of the cyclopean image, features of the cyclopean images in both the spatial domain and transformed domain are extracted based on the natural scene statistics (NSS) model. Furthermore, to better comprehend intrinsic properties of the stereoscopic image, in our method, the binocular rivalry effect and other 3D visual properties are also considered in the process of feature extraction. Following adaptive feature pruning using principle component analysis, improved metric accuracy can be found in our proposed method. The experimental results show that the proposed metric can achieve a good and consistent alignment with subjective assessment of stereoscopic images in comparison with existing methods, with the highest SROCC (0.952) and PLCC (0.962) scores being acquired on the LIVE 3D database Phase I.
Compact Wideband Groove Gap Waveguide Bandpass Filters Manufactured with 3D Printing and CNC Milling Techniques
Authors: Máximo-Gutierrez Clara , Hinojosa Juan , Abad-López José , Urbina-Yeregui Antonio , Alvarez-Melcon Alejandro
Published: July 2023

This paper presents for the first time a compact wideband bandpass filter in groove gap waveguide (GGW) technology. The structure is obtained by including metallic pins along the central part of the GGW bottom plate according to an n-order Chebyshev stepped impedance synthesis method. The bandpass response is achieved by combining the high-pass characteristic of the GGW and the low-pass behavior of the metallic pins, which act as impedance inverters. This simple structure together with the rigorous design technique allows for a reduction in the manufacturing complexity for the realization of high-performance filters. These capabilities are verified by designing a fifth-order GGW Chebyshev bandpass filter with a bandwidth BW = 3.7 GHz and return loss RL = 20 dB in the frequency range of the WR-75 standard, and by implementing it using computer numerical control (CNC) machining and three-dimensional (3D) printing techniques. Three prototypes have been manufactured: one using a computer numerical control (CNC) milling machine and two others by means of a stereolithography-based 3D printer and a photopolymer resin. One of the two resin-based prototypes has been metallized from a silver vacuum thermal evaporation deposition technique, while for the other a spray coating system has been used. The three prototypes have shown a good agreement between the measured and simulated S-parameters, with insertion losses better than IL = 1.2 dB. Reduced size and high-performance frequency responses with respect to other GGW bandpass filters were obtained. These wideband GGW filter prototypes could have a great potential for future emerging satellite communications systems.
Comprehensive High-Quality Three-Dimensional Display System Based on a Simplified Light-Field Image Acquisition Method and a Full-Connected Deep Neural Network
Authors: Erdenebat Munkh-Uchral , Amgalan Tuvshinjargal , Khuderchuluun Anar , Nam Oh-Seung , Jeon Seok-Hee , Kwon Ki-Chul , Kim Nam
Published: July 2023

We propose a high-quality, three-dimensional display system based on a simplified light field image acquisition method, and a custom-trained full-connected deep neural network is proposed. The ultimate goal of the proposed system is to acquire and reconstruct the light field images with possibly the most elevated quality from the real-world objects in a general environment. A simplified light field image acquisition method acquires the three-dimensional information of natural objects in a simple way, with high-resolution/high-quality like multicamera-based methods. We trained a full-connected deep neural network model to output desired viewpoints of the object with the same quality. The custom-trained instant neural graphics primitives model with hash encoding output the overall desired viewpoints of the object within the acquired viewing angle in the same quality, based on the input perspectives, according to the pixel density of a display device and lens array specifications within the significantly short processing time. Finally, the elemental image array was rendered through the pixel re-arrangement from the entire viewpoints to visualize the entire field-of-view and re-constructed as a high-quality three-dimensional visualization on the integral imaging display. The system was implemented successfully, and the displayed visualizations and corresponding evaluated results confirmed that the proposed system offers a simple and effective way to acquire light field images from real objects with high-resolution and present high-quality three-dimensional visualization on the integral imaging display system.
A Finite-Time Sliding-Mode Controller Based on the Disturbance Observer and Neural Network for Hysteretic Systems with Application in Piezoelectric Actuators
Authors: Cheng Liqun , Chen Wanzhong , Tian Liguo , Xie Ying
Published: July 2023

Piezoelectric actuators (PEAs) have the benefits of a high-resolution and high-frequency response and are widely applied in the field of micro-/nano-high-precision positioning. However, PEAs undergo nonlinear hysteresis between input voltage and output displacement, owing to the properties of materials. In addition, the input frequency can also influence the hysteresis response of PEAs. Research on tracking the control of PEAs by using various adaptive controllers has been a hot topic. This paper presents a finite-time sliding-mode controller (SMC) based on the disturbance observer (DOB) and a radial basis function (RBF) neural network (NN) (RBF-NN). RBF-NN is used to replace the hysteresis model of the dynamic system, and a novel finite-time adaptive DOB is proposed to estimate the disturbances of the system. By using RBF-NN, it is no longer necessary to establish the hysteresis model. The proposed DOB does not rely on any priori knowledge of disturbances and has a simple structure. All the solutions of closed-loop systems are practical finite-time-stable, and tracking errors can converge to a small neighborhood of zero in a finite time. The proposed control method was compiled in C language in the VC++ environment. A series of comparative experiments were conducted on a platform of a commercial PEA to validate the method. According to the experimental results of the sinusoidal and triangular trajectories under the frequencies of 1, 50, 100, and 200 Hz, the proposed control method is feasible and effective in improving the tracking control accuracy of the PEA platform.
Decision Levels and Resolution for Low-Power Winner-Take-All Circuit
Authors: Costea Ruxandra L.
Published: July 2023

Sensors in many applications must select the largest element in a sequence of currents. This can be performed in an analog way by the Winner-Take-All (WTA) circuit. This paper considers the classic version of the WTA Lazzaro circuit, working with MOS devices in a subthreshold regime. Since the separation of the gainer by analytically computable “decision levels” has recently been introduced, this paper aims to numerically verify and discuss these levels and their dependence on circuit and device parameters. For VT, the threshold voltage of MOS devices, which is primarily responsible for differences between components (mismatch), its relationship with the output voltages is theoretically demonstrated and numerically checked.
Analysis of the Lifetime of Neural Implants Using In Vitro Test Structures
Authors: Guljakow Jürgen , Lang Walter
Published: July 2023

The aim of this work was to measure the lifetime of neural implant test samples at two different temperatures, using a method that allows the precise measurement of the sample lifetime, further analysis with the use of Weibull statistics, and examination of the applicability of the Van’t Hoff rule. The correct estimation of the lifetime of neural implants is important to avoid preliminary failures, when used in humans. The novelty lies in the precise data due to the measurement approach, the application of the Weibull statistics to neural test samples, and the examination of the Van’t Hoff rule’s applicability to the longevity of polyimide-based neural implant samples. Several samples that consisted of interdigitated gold strands, encapsulated in polyimide were soaked in ringer solution. One batch was soaked at a temperature of 37 °C, and another was soaked at a temperature of 57 °C. Voltage was applied and measured to identify the occurrence of failures. The long-term experiment was stopped after 458 days for the samples at 37 °C and 423 days for the samples at 57 °C, with several samples still being intact at both temperature levels. The time to failure was measured and used to identify the Weibull parameters that would describe the behavior of the samples. The median lifetime of the samples changed from 363 days at 37 °C to 138 days at 57 °C. The scale and shape factor changed from 396 and 3.7 at 37 °C to 138 and 2 at 57 °C, respectively. The measured mean, median times, and Weibull scale factors were lower than expected from the Van’t Hoff rule. The use of the Van’t hoff rule with 2ΔT/10°C for accelerated lifetime tests would lead to an estimation of longer lifetimes than realistic. A reaction rate constant around 1.47 appears more appropriate. While a fourfold difference in lifetime would be expected, only a 2.65-fold difference in the median lifetime and a roughly 2.2-fold difference in the mean and Weibull scale factor were observed. The shift of the Weibull shape parameter from 3.7 at 37 °C to 2 at 57 °C with rising temperatures was observed, indicating differences in failure reasons and stronger aging at lower temperatures. The used method is simple to apply and interpret and allows for a precise anticipation of sample lifetimes.
"Ya hay bastantes muertos en la Iglesia". Los objetivos proselitistas del padre Avelino de Figueiredo, capellán de la CEP en la Primera Guerra Mundial (1917-1919)
Authors: Benvinda Frederico
Published: July 2023

Padre Avelino de Figueiredo deixou claro que sua participação na Primeira Guerra Mundial como capelão voluntário do Corpo Expedicionário Português (CEP) visava salvar almas. Dado o ímpeto secularizador da Primeira República Portuguesa, a lógica proselitista que permeava o seu serviço gerou polémica, assim como o processo de associação dos capelães voluntários às forças do CEP.

A participação de Portugal na Primeira Guerra Mundial em França teve por objetivo legitimar o regime republicano, cujo caráter laico poderia ser prejudicado pela integração nas forças que participaram naquele conflito de elementos que, para além de religiosos, tinham objetivos promocionais de sua fé.

A ação de Avelino de Figueiredo estendeu-se ao nível do apoio moral, espiritual, material e educativo aos militares. No entanto, subjacente a esta ação estavam os objetivos de expansão do catolicismo que o capelão pretendia observar entre os militares.
Las Ultracosas de Cuqui Jerez: deseos provisionales para imaginar la investigación en artes.
Authors: Rodríguez Anto
Published: July 2023

La investigación en artes es un ámbito del conocimiento de reciente implantación en los contextos universitarios y educativos españoles y latinoamericanos. Para tratar de definirla en este artículo me acerco a mi propia práctica investigadora y enumero 10 ejes con los que describir algunos de sus aspectos más importantes. Utilizo como pretexto la descripción de la pieza escénica Las Ultracosas de Cuqui Jerez en primera persona para abordar conceptos complejos y comunes como la vibración disidente, la práctica del presente o la toma de posición. La investigación en artes es un espacio disidente dentro de la academia y el mercado cultural que poco a poco se va abriendo camino en las artes escénicas y artes vivas y por eso es importante tratar de definirlo o cuestionarlo.
La Reescritura en la obra de Jean-Luc Lagarce
Authors: García Acevedo José Emilio
Published: July 2023

Jean-Luc Lagarce es uno de los dramaturgos franceses más importantes de las últimas décadas. Si bien a lo largo de su carrera fue más conocido por su trabajo como director, tras su muerte, su obra ha sido revalorizada, al punto que es de los autores más representados en su país. En este texto analizaré un aspecto central de su obra: la reescritura. Abordaré diversos ejemplos de este fenómeno, así como las distintas formas en las que se manifiesta, puesto que no se presenta únicamente como una corrección o una nueva versión de una obra, sino que puede llegar a implicar la alteración del sentido del texto, de la visión de mundo que proyecta. Más aún, volver a escribir se relaciona con el deseo —y la imposibilidad— de corregir y reexperimentar la vida, tanto aquélla de los personajes, como la del autor. Exploraré las implicaciones de una reescritura constante, los riesgos, pero también las posibilidades que trae consigo, para lo cual será pertinente echar mano de Corrección de Thomas Bernhard. Finalmente, abordaré el vínculo entre la reescritura y el proyecto literario del dramaturgo francés, por lo que se observará el papel central (e incluso vital) que tiene en su obra.
Diagnóstico estadístico del conocimiento previo y de la evolución del aprendizaje transdisciplinar de las Ciencias Naturales en los Grados en Educación de una universidad pública española
Authors: Sotto Díaz Arcadio , Melón Jiménez Pablo , Arsuaga Ferreras Jesús María , Román Aliste Sergio
Published: July 2023

Este estudio consiste en un diagnóstico sobre el estado de los conocimientos previos (CP) de los estudiantes que acceden al grado en Educación Primaria (GEP) impartido en la Universidad Rey Juan Carlos (URJC) a través de una serie de cuestionarios centrados en las principales disciplinas que tradicionalmente conforman las Ciencias Naturales: Biología, Geología, Física y Química. A partir de dichos datos, se establece una comparativa entre los mismos y los resultados académicos (RA) posteriores que obtienen los estudiantes tras haber cursado las asignaturas del ámbito de las Ciencias Naturales en el GEP. Los resultados muestran una correlación entre los resultados obtenidos por los estudiantes en los Cuestionarios de Conocimientos Previos (CP) y los resultados académicos (RA). La tasa de mejora es de un 67% para el conjunto de las disciplinas analizadas, lo que se traduce en una mejora de 4,5 puntos en los RA frente a los CP. Se aprecia una correlación para la Química, la Biología y el conjunto Global de las Ciencias por lo que se puede inferir, según el contraste de hipótesis, cual será la tasa de mejora de los estudiantes en estas disciplinas a partir del análisis de sus resultados en los cuestionarios de CP.
Formación multidisciplinaria para la docencia: diseño, prácticas y alcances de un programa de posgrado
Authors: Mireles Vargas Olivia , Santos Hernández José Antonio
Published: July 2023

La formación del profesorado continúa como un tema pendiente en México. La educación media, o secundaria de segundo ciclo, en particular, tiene un reto mayúsculo en tanto carece de una estructura institucional robusta para el perfeccionamiento de los docentes, quienes ostentan un título profesional disciplinario, pero carecen, en su mayoría, de preparación pedagógica. Frente a esta carencia, en el año 2003 se aprobó una maestría con la intención de proveer una formación integral con un enfoque multidisciplinario, mismo que se instrumentó a través de diferentes mecanismos tales como un plan de estudios que contempla tres ejes: la disciplina de enseñanza, las áreas socio ético educativa y psicopedagógica, en correspondencia con un esquema de comités tutoriales integrados por académicos de diferentes disciplinas. Así, este artículo tiene el propósito de describir el diseño institucional, analizar algunas prácticas y valorar los alcances de este programa en función de su propuesta multidisciplinar. El trabajo es descriptivo y analítico. Uno de los principales hallazgos apunta a que es necesario transitar hacia la formación docente interdisciplinar e incorporar contenidos que atiendan viejas y nuevas demandas como las tecnologías, el cuidado del medio ambiente y la inclusión.
ANALISIS REALISASI ANGGARAN SEBAGAI ALAT PENGENDALIAN KEUANGAN PADA BADAN LAYANAN UMUM DAERAH (BLUD) (STUDI KASUS RUMAH SAKIT UMUM DAERAH SEKAYU)
Authors: Siskana Siskana , Septariani Jumania
Published: July 2023

Penelitian ini bertujuan untuk mengetahui realisasi anggaran sebagai alat pengendalian keuangan pada Badan Layanan Umum Daerah (BLUD) Rumah Sakit Umum Daerah (RSUD) Sekayu. Data dalam penelitian ini menggunakan data primer dan data sekunder. Teknik pengumpulan data adalah wawancara dan dokumentasi. Analisis data yang digunakan adalah kualitatif dengan menggunakan angka rasio keuangan. Hasil penelitian ini menjelaskan bahwa realisasi Badan Layanan Umum Daerah (BLUD) Rumah Sakit Umum Daerah (RSUD) Sekayu tidak pernah mencapai target anggaran yang telah ditetapkan. Tingkat efektivitas anggaran dan realisasi pendapatan Badan Layanan Umum Daerah (BLUD) RSUD Sekayu tahun 2018-2020 berada pada kategori efektif dengan rasio rata-rata sebesar 94,35%. Sementara itu, rasio efisiensi belanja Badan Layanan Umum Daerah (BLUD) Rumah Sakit Umum Daerah (RSUD) Sekayu tahun 2018-2020 berada dalam kriteria cukup efisien dengan rasio rata-rata sebesar 80,89%.
Penggunaan Microsoft Excel untuk Kemudahan Pengolahan Data Nilai Hasil Belajar Siswa
Authors: Odja Molina Olivia , Likadja Frans J. , Ina Wenefrida T , Pella Stephanie I.
Published: July 2023

Abstrak  

Penggunaan sistem komputerisasi sangat dibutuhkan karena dapat mempermudah dan mempercepat pekerjaan manusia. Tetapi tidak dapat dipungkiri bahwa ketrampilan menggunakan teknologi tidak serta merta meningkat, hal ini dialami oleh guru di SDK St. Arnoldus Penfui dimana masih minimnya ketrampilan dalam mengoperasikan dan memanfaatkan aplikasi Microsoft Excel, sementara aplikasi tersebut dapat membantu memudahkan pekerjaan mengolah angka, maupun teks untuk mendeskripsikan hasil belajar siswa yang sesuai dengan kurikulum 2013. Berdasarkan alasan tersebut, dibuatlah kegiatan pengabdian “PKM Pemanfaatan Microsoft Excel untuk Menunjang Proses Belajar Mengajar pada SDK St. Arnoldus Penfui Kupang”. Adapun metodologi pelaksanaan kegiatan Program Kemitraan Masyarakat adalah sebagai berikut tahap persiapan, pelaksanaan kegiatan dengan metode pelatihan dan pendampingan serta dilakukan evaluasi sebagai tolak ukur keberhasilan program. Kegiatan PKM dapat terlaksana dengan baik dengan pemberian materi (30%) dan praktek atau tutorial (70%) adapun materi yang diberikan adalah Pengenalan Microsoft Excel, Workbooks & Worksheets di Excel, Formula & Function di Excel, Conditional Formatting di Excel, Logical & Mathematical Function di Excel, Charts di Excel. Sementara luaran yang dicapai pada kegiatan ini adalah guru-guru SDK St. Arnoldus Penfui menjadi terampil dalam menggunakan microsoft excel untuk membuat rekapan absensi dan daftar nilai hasil belajar siswa.

Abstract 

A computerized system is needed because it can simplify and speed up human work. However, it is undeniable that the skills to use technology do not increase immediately. Teachers experience this at SDK St. Arnold Penfui, where there is still a lack of skills in operating and utilizing Microsoft Excel applications, while these applications can help facilitate the work of processing numbers, as well as texts to describe student learning outcomes by the 2013 curriculum—supporting the Teaching and Learning Process at SDK St. Arnold Penfui Kupang". The methodology for implementing Community Partnership Program activities is as follows: preparation stage, implementation of activities using training and mentoring methods, and evaluation as a measure of program success. PKM activities can be carried out well by providing materials (30%) and practice or tutorials (70%) while the material provided is Introduction to Microsoft Excel, Workbooks & Worksheets in Excel, Formulas & Functions in Excel, Conditional Formatting in Excel, Logical & Mathematical Functions in Excel, Charts in Excel. While the outcomes achieved in this activity are the SDK St. Arnoldus Penfui became skilled in using Microsoft Excel to make attendance records and lists of student learning outcomes
Budidaya Tanaman Sehat dengan Trichokompos & Pupuk Organik Cair
Authors: Hahuly Mayavira V. , Simamora Agnes V. , Nenotek Petronella S. , Nahas Agustina Etin , Nguru Cindy C. , Manao-Nubatonis Mars B. F.
Published: July 2023

Abstrak

Kegiatan Program Kemitraan Masyarakat ini bertujuan untuk memberikan solusi terhadap permasalahan yang selama ini dihadapi kelompok tani Iklas di Desa Tubuhue Kecamatan Amanuban Barat, Kabupaten Timor Tengah Selatan. Permasalahan yang dihadapi antara lain berupa keterbatasan dalam cara pemeliharaan tanaman apel dan sayuran, serta dalam hal pengendalian hama penyakit tanaman. Kegiatan PKM ini bertujuan untuk: (1) memperkenalkan metode budidaya tanaman secara sehat berkelanjutan; (2) membuat Trichokompos menggunakan isolat Trichoderma sp. koleksi Laboratorium Penyakit Tumbuhan Faperta Undana; (3) membuat dan mengaplikasikan pupuk organik cair dari limbah pertanaman dan peternakan yang diperkaya dengan EM4; (4) membuat perangkap lalat buah; dan (5) membuat dan mengaplikasikan pestisida nabati. Metode pelaksanaan adalah penyuluhan, diskusi, praktek, dan pembuatan demplot.Target kegiatan PKM ini telah tercapai. Petani telah menguasai pengetahuan tentang budidaya tanaman secara sehat serta dapat membuat Trichokompos dan pupuk organik cair dan telah mengaplikasikannya.Sayuran yang diberi perlakuan Trichokompos dan pupuk organik cair tumbuh lebih subur dibandingkan dengan yang tidak diberi perlakuan. Petani antusias dan bersemangat untuk melanjutkan praktek budidaya tanaman secara sehat tersebut.

 

Kata kunci:Trichokompos, pupuk organik cair, metode budidaya tanaman sehat

 

 

Abstract

This Community Partnership Program was aimed to provide solutions to the problems in Iklas farmer group in Tubuhue Village, West Amanuban District, Timor Tengah Selatan Regency. The problems include limitations in methods for cultivating apple and vegetable crops, as well as for controlling plant pests and diseases. This Community Partnership Program activity was carried out to introduce sustainable plant cultivation method, to produce trichoderma biofertilizers using Trichoderma sp. collection of the Plant Disease Laboratory of Agriculture Faculty Universitas Nusa Cendana, to produce liquid organic fertilizer from crop and livestock waste enriched with EM4, as well as to make fruit fly traps and botanical pesticides. This program was done through counseling, discussion, practice, and making demonstration plots. The target of this Community Partnership Program has been achieved. Farmers have received knowledge about healthy and sustainable crop cultivation. Farmers have been able to make Tichompost and liquid organic fertilizer and have applied it to apples and various vegetables. Vegetables that were treated with Trichompost and liquid organic fertilizer grew more fertile than those that were not treated. Farmers were enthusiastic and willing to continue the practice of the healthy and sustainable crop cultivation.

 

Keywords:trichocompost,liquid organic fertilizer, healthy crop cultivation method
Website Sebagai Media Pelayanan Digital di Jemaat GMIT Koinonia Kupang
Authors: Pollo Don E.D.G. , Ginting Almido H. , Doo Samy Y. , Mauboy Evtaleny R. , Djahi Hendrik J.
Published: July 2023

Saat ini penggunaan teknologi informasi dan komunikasi seperti internet dan media sosial makin menjadi kebutuhan utama. Hal serupa terjadi juga di jemaat di GMIT Koinonia Kupang yang persentase jemaatnya didominasi generasi milenial. Kebutuhan pelayanan yang berbasis teknologi informasi dan komunikasi menjadi tuntutan untuk menjangkau dan menjembatani generasi milenial. Hal ini dengan sendirinya akan mendorong jemaat terlibat aktif dalam pelayanan, dan meningkatkan sense of belonging jemaat terhadap gereja. Untuk itu, dilakukan kegiatan dalam bentuk Program Kemitraan Masyarakat (PKM) berupa pemberian pelatihan teknologi yang praktis dan mudah dipelajari yaitu Pelatihan Pengelolaan dan Pengembangan Website Jemaat Koinonia Kupang. Hasil dari kegiatan ini telah terbentuk Tim Pengelola Website dan dilaunchingnya Website Koinonia Reborn.
HIDROPONIK RAKIT APUNG BAGI KAUM MILENIAL KELURAHAN NUNLEU KOTA KUPANG
Authors: Hangge Elsy Elisabet , Karels Dolly W. , Sina Dantje A. T. , Hunggurami Elia
Published: July 2023

Populasi manusia meningkat dan ketersediaan lahan di daerah perkotaan untuk pertanian terbatas, karena peralihan lahan menjadi perumahan dan fasilitas umum yang menunjang di daerah perkotaan. Sedangkan kebutuhan pangan, khususnya sayuran bagi kebutuhan konsumsi terus meningkat. Situasi pandemi covid-19 yang mewabah, maka perlu meningkatkan daya tahan tubuh dengan mengkonsumsi sayur sehat. Kaum milenial semakin peduli dengan pola hidup sehat, maka konsumsi sayuran menjadi penting. Kegiatan program kemitraan masyarakat ini, mengenalkan kepada kaum milenial Kelompok Belgers Nunleu tentang pemanfaatan lahan terbatas menggunakan sistem hidroponik rakit apung untuk menanam sayur guna pemenuhan kebutuhan konsumsi sayur. Metode hidroponik dapat dikembangkan dan diaplikasikan disektor rumah tangga atupun skala besar untuk peningkatan perekonomian masyarakat. Sistem hidroponik rakit apung relatif mudah untuk diterapkan di kalangan milenial, karena sistem penanaman sayur tidak menggunakan media tanah melainkan menggunakan media air bernutrisi yang diletakkan dalam baskom, sehingga sayuran dapat tumbuh dengan baik karena akar menyerap unsur-unsur hara yang diperlukan. Hasil kegiatan memberikan pemahaman dan pelatihan tentang pentingnya mengoptimalkan lahan pekarangan agar mandiri dalam menghasilkan kebutuhan sayuran sehat untuk konsumsi, sehingga diharapkan dengan pelatihan penanaman sayuran menggunakan metode hidroponik rakit apung dapat memberikan solusi penyediaan sayuran sehat pada lahan terbatas di daerah perkotaan dan memberikan ide usaha bagi kaum milenial
The Influence of Using Technology to Accomplish Work-related Tasks Online
Authors: AlFahl Husam
Published: July 2023

People are using electronic and mobile devices extensively for many purposes ranging from recreation to accomplishing work at anytime from anywhere and such practice comes to be a significant part of their lifestyles. Indeed, many employees working remotely can achieve their work-related tasks through electronic devices even though these devices pose potential threats to the work-life balance. The current paper attempts to investigate the influence of using technology to accomplish work-related tasks online. To validate the research model, structural equation modeling was applied. Employees in Saudi Arabia working in organizations were requested to participate in filling the research questionnaire to test the research hypotheses. The findings disclosed that using technology to accomplish work-related tasks online has negative effects on the employees. The results of the study showed that the addiction to the usage of technologies to accomplish work-related tasks increases the perceived work overload, resulting in an increased work-life balance disruption.
‚Liebe Sophie‘: Adressierung und Involvierung in Instagram-Kommentaren am Beispiel des Projektes @ichbinsophiescholl
Authors: Meier-Vieracker Simon
Published: July 2023

Under the title @ichbinsophiescholl, two public broadcasters operated an Instagram channel be-tween 2021 and 2022 that reenacted the life of the resistance fighter Sophie Scholl in formats typical of the platform. The highly frequented comment sections of the account provide detailed information on how the chosen staging strategies were received by the users. In addition to the captions, around 52,000 comments and replies were collected and processed as a fully annotated corpus. Using quantitative and qualitative methods as well as historical didactic research on the one hand and linguistic concepts of emotional involvement on the other, it is shown how users directly address the staged figure of Sophie Scholl and, supported by the commenting behaviour of the account itself, interact with her. Based on this, the didactic potential of such a corpus-based approach to memory culture will be discussed, especially for teaching German as a foreign language.
Simultaneous manipulation of acoustic waves in the reflected and transmitted regions with the full space metasurface
Authors: Ju Fangfang , Zou Xiao , Xue Shibei , Qian Sheng-You
Published: July 2023

Acoustic metasurfaces offer great opportunities to realize exceptional functionalities and novel devices. However, most traditional metasurfaces manipulate acoustic waves either in the reflected region or in the transmitted region, leaving half of the space unexplored. Here, we propose a full space metasurface, which can simultaneously manipulate acoustic waves in the reflected and transmitted regions. As a proof of concept, three metadevices are designed and demonstrated: multi-directional scattering, asymmetric acoustic scattering and multi-focal focusing. Our proposal exhibits the full space utilization and may offer opportunities in the capabilities of metasurfaces in sound manipulation.
Yarasa kaynaklı zoonotik viruslar
Authors: FIRAT Müge
Published: July 2023

Yarasalar böcek popülasyonlarının dengelenmesi, bitkilerin tozlaşması ve tohumların yayılması gibi önemli ekolojik katkıları bulunan, çok farklı habitatlarda yaşayabilen ve rodentlerden sonra Memeliler sınıfının en fazla çeşitlilik gösteren takımıdır. Yarasalar vücut büyüklüklerine oranla oldukça uzun yaşamaları, uzak mesafelere uçabilme ve göç etme yetenekleri, tüneme, sosyal organizasyon, hibernasyon, termoregülasyon, ekolokasyon, torpor ve kuvvetli bağışıklık sistemi mekanizmaları sonucu zoonotik viral hastalıklar da dahil olmak üzere pek çok mikroorganizma için rezervuar konaktır. Virusların pek çoğunun doğal yaşam döngüsünde yer alan ve bünyelerinde zengin bir virus çeşitliliğine sahip olan yarasalardan insanlara virusların bulaşması, doğrudan veya yabani ve çiftlik hayvanları ara konaklığıyla olmaktadır. Yarasaların eskiden beri Rhabdoviridae ailesinden Kuduz lyssavirusu ve diğer kuduz-ilişkili lyssavirusları taşıdıkları bilgisine ek olarak, Coronaviridae ailesinden SARS-CoV ve MERS-CoV, Filoviridae ailesinden Ebola ve Marburg viruslar ile Paramyxoviridae ailesinden Nipah ve Hendra viruslar gibi önemli viral zoonoz etkenlerin de doğal taşıyıcıları oldukları tespit edilmiştir. Bu derlemede yarasaların diğer hayvan türleri ile karşılaştırıldığında tür başına daha yüksek oranda zoonotik virusları taşımalarına katkıda bulunan çeşitli faktörler ve önemli bazı yarasa kaynaklı zoonotik viral hastalıklar hakkında genel bilgi verilmesi amaçlanmıştır.
Gradazione e graduazione; gradato e graduato; gradatamente e gradualmente
Authors: Della Valle Valeria
Published: July 2023

Un lettore chiede chiarimenti sul termine gradazione, per sapere se si debba dire e scrivere diploma di gradazione o diploma di graduazione. Un altro lettore vuole sapere la differenza tra gradato e graduato. Una lettrice chiede di spiegare la differenza tra gradatamente e gradualmente, e se i due avverbi possano essere usati in modo intercambiabile nelle ricette.
إشكالية الفضاء المسرحي بين التقليد والمغايرة
Authors: أ. م.د. روعه بهنام عبد الأحد  , أ. م. عماد هادي عباس
Published: July 2023

الفضاء المسرحي وبغض النظر عن طبيعته المعمارية إن كان دائريا مسرحا رومانيا أو علبة ايطالية أو منصة بالهواء الطلق ..يمكن وصفه الوعاء الذي يحتوي العرض وفقا لطبيعته الجمالية والفكرية والحسية ولما كان هناك الكثير من المحاولات إلى  تجاوز المسرح على الطريقة الإيطالية للدخول إلى مغامرة التجريب والتجديد والبحث عن صيغة مسرحية مغايرة تؤدي إلى إيجاد خطاب مسرحي يؤثر في وعي الجمهور، لذلك فقد قسم الباحث بحثه إلى أربعة فصول :

الفصل الأول – الإطار المنهجي للبحث حيث ضم مشكلة البحث وأهميته  والحاجة إليه وأهدافه وحدوده ، وأختتم الفصل بتعريف المصطلحات التالية (إشكالية- المسرح التقليدي – مسرح الفضاءات المغايرة) 0
البنية الفلمية والخصوصية الوطنية في الفلم الروائي
Authors: م. د. بان جبار خلف
Published: July 2023

ان البحث الموسوم "البيئة الفلمية والخصوصية الوطنية في السينما الروائية" يتكون من الفصل الاول الذي تضمن  الاطار المنهجي والذي يحتوي على مشكلة البحث والحاجة اليه والتي كانت " الى اي مدى يمكن اعتبار البيئة ركيزة للثلاثي الجدلي الفلمي من حيث كونها قيمة سردية وتعبيرية ومساهمة في تقديم الشكل الفلمي " اما الحاجة الى مثل هذه البحوث فهي مهمة جدا من خلال التأكيد على تفعيل بيئة الفلم كعنصر تعبيري يضع في ايدي المختصين حقلا يجب الانتباه اليه باستمرار لتأكيد هوية الفلم المحلي ، اما اهمية البحث فتكمن في ملاحظة ان اغلب الافلام في العراق والوطن العربي تفقد هويتها الوطنية والقومية وتصبح استنساخا لفلم الاخر المتمكن .. حيث ان البيئة هي البصمة والهوية لسينما وطنية لاتقلد منجزات الاخرين .
البرجماتية كإستراتيجية جمالية تصميمية
Authors: ا.د. خليل إبراهيم حسن  , م.د. وسن خليل إبراهيم
Published: July 2023

الجماليات البرجماتية مقترح يعد شاملا لدراسة الأبعاد الجمالية التي تتأسس على وفقها النتاجات التصميمية, وهو منهج يحدد لنا نظرة شاملة للدور الذي يلعبه النتاج التصميمي في حياتنا اليومية. ومن ثم, فان ما نوقش في هذا البحث كان انطلاقا من وضع الحسبان لكافة الاتجاهات التي يحاكيها النتاج التصميمي في حياة المستهلك. وقد حددت هذه الاتجاهات الجمالية انطلاقا من المرجعيات الفكرية التي تتاسس على وفقها الفلسفة او المنهج البرجماتي, والتي تمثلت بـ ( الاستخدام العملي للجمال, والسياق الاجتماعي للجمال, والدور الديناميكي للهيئة, ودور العقل في التجربة الجمالية).
Investigating the Connection between Parental Education and Children’s Oral Health: An Extensive Examination in Western Romania for 11–14-Year-Olds
Authors: Dumitrescu Ramona , Sava-Rosianu Ruxandra , Jumanca Daniela , Negru Daniel , Bălean Octavia , Pașca Ioana Giorgiana , Oancea Roxana , Gălușcan Atena
Published: July 2023

(1) Background: This research is part of the Romanian oral health survey for children, aiming to determine correlations between the oral health status of 11–14-year-old schoolchildren and their parents’ educational levels, taking into account preventive behaviour and socioeconomic parameters. (2) Methods: a representative sample of 133 schoolchildren (72 boys and 61 girls), average age 12.26 ± 0.6 years, was examined by calibrated dentists. After obtaining ethical approval, a visual examination using ICDAS criteria was performed to classify visual caries lesion severity. Statistical analyses of the data were performed using SPSS 23, Spearman’s rank correlation and the Pearson correlation. (3) Results: Mean DMFT within the sample was 2.93 ± 2.70. High school was the most common level of education completed by the parents. A positive relationship was recorded between the mother’s level of education and the frequency of toothbrushing in children (rs = 0.02 *, p < 0.01), as well as with oral hygiene aids (rs = 0.17 *, p < 0.05). A negative significant correlation resulted between D3T index and the mother’s level of education (rs = −0.26 **, p < 0.01), as well as with the father’s education (rs = −0.17 **, p < 0.01). (4) Conclusions: The results of this study show that high caries prevalence could be associated with low educational level and socio-economic county-level variables, having an impact on the presence and severity of such lesions, as well as the absence of existing treatments.
Output Feedback Control for Deterministic Unknown Dynamics Discrete-Time System using Deep Recurrent Q-Networks
Authors: Novitarini Adi
Published: July 2023

The current application of control theory is commonly carried out in systems with a model or known system dynamics. However, in practice this is a formidable task to achieve as not all state information can be known. The use of the Output Feedback (OPFB) scheme in the field of control systems also possesses a weakness because it requires the use of an observer. This appears rather contradictory as the use of an observer requires system dynamics information. This research proposes an optimal control scheme using Deep Recurrent Q-Networks (DRQN) to generate an optimal control signal trajectory based on a collection of input and output data from the system itself. The approach proposed in this study is based on the Q-Learning method from the Reinforcement Learning (RL) scheme. The Long-Short Term Memory (LSTM) is used to approximate the Q-function and determine the control signals for a system without a known model. The method that we proposed in this study has been tested on four case studies. The control signal trajectory generated from our proposed algorithm, is much smaller than the control signal that generated from classical Q-Learning scheme. The results of this research are certainly relevant to the aim of OPFB, namely that the controller is designed to be able to regulate (bring the state trajectory to zero) and minimize control signal energy.

It is empirically discovered that the same result is proven by the norm values resulting from the Q-function trajectory. The norm of Q-function trajectory for our proposed algorithm on the 1st, 2nd, 3rd, and 4th case studies are 2.11E-08, 3.15E-06, 3.79E-09, and 1.59E-13, respectively.
Output Feedback Control for Deterministic Unknown Dynamics Discrete-Time System using Deep Recurrent Q-Networks
Authors: Novitarini Adi
Published: July 2023

The data were uploaded in : https://github.com/adinovitarini/DOF 
Buyers Collusion in Incentivized Forwarding Networks via Multi-agent Reinforcement Learning
Authors: Abdelhadi Mostafa , Ekin Sabit , Imran Ali
Published: July 2023

We present the issue of monetarily incentivized forwarding in a multi-hop mesh network architecture from an economic perspective. 
Comparative study of subset selection methods for rapid prototyping of 3D object detection algorithms
Authors: Lis Konrad , Kryjak Tomasz
Published: July 2023

Object detection in 3D is a crucial aspect in the context of autonomous vehicles and drones. However, prototyping detection algorithms is time-consuming and costly in terms of energy and environmental impact. To address these challenges, one can check the effectiveness of different models by training on a subset of the original training set. In this paper, we present a comparison of three algorithms for selecting such a subset - random sampling,  random per class sampling, and our proposed MONSPeC (Maximum Object Number Sampling per Class). We provide empirical evidence for the superior effectiveness of random per class sampling and MONSPeC over basic random sampling. By replacing random sampling with one of the more efficient algorithms, the results obtained on the subset are more likely to transfer to the results on the entire dataset. The code is available at: https://github.com/vision-agh/monspec.
Energy Cost Conservation for Collaborative Edge Clouds with Online Mini-Batch Learning
Authors: Jing Zewei , Wu Yan , Wang Xianbing , Yang Qinghai , Mei Muyu , Qin Meng
Published: July 2023

Edge clouds (ECs) have recently been shown with outstanding advantages in enhancing customized user service experiences, benefiting from user proximity and location-aware characteristics. However, operating a large-scale EC network would inevitably result in a significant energy cost for EC providers, potentially offsetting their service revenue without proper energy cost management. In this paper, we focus on conserving energy cost for EC providers by leveraging both electricity price-aware geographical load balancing and dynamic central processing unit (CPU) provisioning, considering the spatio-temporal diversities of electricity prices and user task demands. Due to the significant “switching cost” associated with turning CPUs and services on/off, we formulate a multi-timescale energy cost minimization problem that integrates large-timescale CPU provisioning and service placement, as well as small-timescale geographical task dispatching and CPU resource allocation. The Lagrange dual decomposition theory is exploited to handle the spatio-temporal variable couplings. A fully distributed mini-batch learning (MBL) algorithm that relies on parameter approximation for large-timescale decision makings is proposed to learn the optimal dual variables, i.e., the Lagrange multipliers. We present rigorous algorithm performance analysis, and conduct extensive simulations based on real data of electricity prices of Canada to demonstrate the superior performance of the MBL algorithm compared to several baseline schemes.
Opacity of Parametric Discrete Event Systems: Models, Decidability, and Algorithms
Authors: deng weilin , qiu daowen , yang jingkai
Published: July 2023

 Finite automata (FAs) model is a popular tool to characterize discrete event systems (DESs) due to its succinctness. However, for some complex systems, it is difficult to describe the necessary details by means of FAs model. In this paper, we consider a kind of extended finite automata (EFAs) in which each transition carries a redicate over state and event parameters. We also consider a type of simplified EFAs, called Event-Parameters EFAs (EP-EFAs), where the state parameters are removed. Based upon these two parametric models, we investigate the problem of opacity analysis for parametric DESs. First of all, it is shown that EFAs model is more expressive than EP-EFAs model. Secondly, it is proved that the opacity properties for EFAs are undecidable in general. Moreover, the decidable opacity properties for EPEFAs are investigated. We present the verification algorithms for current-state opacity, initial-state opacity and infinite-step opacity, and then discuss the complexity. This paper establishes a preliminary theory for the opacity of parametric DESs, which lays a foundation for the opacity analysis of complex systems.   
Powering Inaccessible IoT Devices Through a WPT-enabled Sustainable UAV Network
Authors: Mekikis Prodromos-Vasileios , Bouzinis Pavlos , Mitsiou Nikos , Tegos Sotiris , Papanikolaou Vasilis , Tyrovolas Dimitrios , Diamantoulakis Panagiotis D. , Karagiannidis George K.
Published: July 2023

Powering Internet of Things (IoT) devices in hard to reach or hazardous locations could be prohibitive in terms of cost and safety. In this work, we demonstrate a thorough solution that tackles this problem using a network of unmanned aerial vehicles (UAVs) with wireless power transfer (WPT) capabilities. Given the large-scale IoT deployments of the future and the energy needs of the UAVs, we consider an infrastructure of charging stations for the UAVs that allow an uninterrupted and flexible UAV deployment based on the current energy needs of the IoT devices. Then, we exhibit an orchestrator that communicates with the entire infrastructure and handles the UAV traffic and energy decisions, as well as the digital representation and interaction of the network with the user.
Empowering STEAM Activities with Artificial Intelligence and Open Hardware: the BitDogLab
Authors: Fruett Fabiano , Barbosa Fernanda Pereira , Guimarães Pedro Ivo Aragão , Fraga Samuel Cardoso Fraga
Published: July 2023

 The paper "Empowering STEAM Activities with Artificial Intelligence and Open Hardware: the BitDogLab" discusses the design and development of BitDogLab, a tool intended to enhance Science, Technology, Engineering, Arts, and Mathematics (STEAM) activities. The device is based on the Raspberry Pi Pico board, employing an easy-to-use programming interface powered by the GPT model for artificial intelligence.

BitDogLab leverages open-source platforms, facilitating the expansion and enhancement of its functionalities. It is capable of interfacing with various software resources and more sophisticated hardware, such as robotic systems or advanced sensors. This ability broadens its scope of use in educational applications.

BitDogLab fosters a collaborative learning culture by encouraging community contributions, thereby strengthening the innovation process. Furthermore, BitDogLab is particularly useful in demystifying complex programming concepts, promoting critical thinking, and problem-solving skills. This transforms it from just an educational tool to a catalyst that inspires lifelong learning in the ever-evolving landscape of STEAM education.