bluuebunny/crossref_metadata_2025_split huggingface dataset:
Editorial
Authors: Baied Carlos 
Published: August 2023

Con este nuevo volumen de Mundo de Antes reiniciamos la comunicación, desde el Instituto de Arqueología y Museo de la Universidad Nacional de Tucumán, con el universo de nuestros lectores, a los que impusimos un tiempo de espera fuera de lo habitual a lo que ha sido, históricamente, la producción de la revista. Concientes de ello, agradecemos profundamente a todos los que, de distintas maneras, colaboraron para hacer posible este volumen, muy especialmente a los autores, por la infinita paciencia que han sabido desarrollar durante el proceso de evaluación y edición de los textos, confiando así a Mundo de Antes la difusión de sus resultados de investigación.
El arte rupestre del Nordeste de la Meseta de Somuncurá: caracterización inicial e integración regional (Nordpatagonia, Argentina)
Authors: Blanco Rocio , Miotti Laura , Carden Natalia 
Published: August 2023

En este trabajo se presenta el análisis comparativo de tres localidades con arte rupestre asociadas a lagunas en el sector oriental de la meseta de Somuncurá: Laguna La Maciega, Laguna Azul y El Ganso. Esta información se inserta, posteriormente, en un contexto regional, considerando una amplia diversidad de sitios con manifestaciones rupestres ubicados sobre esta altiplanicie y en sus inmediaciones. Los resultados obtenidos en una escala mesorregional señalan una alta diversidad de motivos y técnicas que se acentúa en Laguna La Maciega. Esta diversidad, junto con el análisis de las pátinas, sugiere la posibilidad de usos recurrentes de las mencionadas cuencas. La evaluación de los contextos arqueológicos asociadosal arte rupestre en Nordpatagonia permite enmarcar a la circulación de estas imágenes en la dinámica social del Holoceno tardío.

En este trabajo se presenta el análisis comparativo de tres localidades con arte rupestre asociadas a lagunas en el sector oriental de la meseta de Somuncurá: Laguna La Maciega, Laguna Azul y El Ganso. Esta información se inserta, posteriormente, en un contexto regional, considerando una amplia diversidad de sitios con manifestaciones rupestres ubicados sobre esta altiplanicie y en sus inmediaciones. Los resultados obtenidos en una escala mesorregional señalan una alta diversidad de motivos y técnicas que se acentúa en Laguna La Maciega. Esta diversidad, junto con el análisis de las pátinas, sugiere la posibilidad de usos recurrentes de las mencionadas cuencas. La evaluación de los contextos arqueológicos asociados al arte rupestre en Nordpatagonia permite enmarcar a la circulación de estas imágenes en la dinámica social del Holoceno tardío.

En este trabajo se presenta el análisis comparativo de tres localidades con arte rupestre asociadas a lagunas en el sector oriental de la meseta de Somuncurá: Laguna La Maciega, Laguna Azul y El Ganso. Esta información se inserta, posteriormente, en un contexto regional, considerando una amplia diversidad de sitios con manifestaciones rupestres ubicados sobre esta altiplanicie y en sus inmediaciones. Los resultados obtenidos en una escala mesorregional señalan una alta diversidad de motivos y técnicas que se acentúa en Laguna La Maciega. Esta diversidad, junto con el análisis de las pátinas, sugiere la posibilidad de usos recurrentes de las mencionadas cuencas. La evaluación de los contextos arqueológicos asociados al arte rupestre en Nordpatagonia permite enmarcar a la circulación de estas imágenes en la dinámica social del Holoceno tardío .
KAMPANYE PENCEGAHAN NARKOBA DI KALANGAN PELAJAR DENGAN KONSEP FASHION STREET
Authors: Nasution Dina Syarifah 
Published: August 2023

Narkoba adalah salah satu musuh terbesar bangsa Indonesia. Peredaran narkoba juga marak terjadi di berbagai wilayah di Indonesia. Peredaran narkoba tidak hanya terjadi di wilayah perkotaan, tetapi juga di wilayah pedesaan. Mengingat peredaran narkoba yang cukup masif, maka narkoba sudah menjadi ancaman serius pada beberapa wilayah di Indonesia, termasuk di Kabupaten Mandailing Natal.Untuk mencegah penyebarluasan narkoba di kalangan pelajar diperlukan strategi khusus untuk melakukan tindakan preventif, salah satunya dengan cara melakukan kampanye pencegahan narkoba dengan menggunakan cara-cara yang kreatif seperti Fashion Street. Hampir tidak ada daerah di Indonesia yang masyarakatnya tidak terpapar narkoba. Oleh karena itu, permasalahan penyalahgunaan narkoba perlu mendapatkan perhatian dari semua pihak. Diharapkan kampanye ini lebih efektif dan tepat sasaran karena lebih efisien karena dalam kegiatan yang di adakan menarik perhatian masyarakat yang lalu lalang terlebih-lebih penduduk disekitar kegiatan dilaksanakan. Tahapan pengabdian kepada masyarakat yang dilaksanakan dibagi menjadi tiga tahapan yaitu; sosialisasi, pelaksanaan, dan evaluasi. Pengabdian Mayarakat yang dilaksanakan berlangsung dari jam 14.00 wib sampai dengan selesai dan diikuti oleh 23 peserta dengan menggunakan kostum merah putih. Pokok bahasan yang disampaikan dan merupakan penilaian juri adalah Kampanye tentang Narkoba. Dengan adanya kegiatan Fashion street yang bertujuan untuk menggemakan bahwa Kabupaten Mandailing Natal merupakan wilayah darurat Narkoba. Pada akhirnya masyarakat Mandailing Natal menaruh perhatian besar terhadap kasus-kasus pengguna narkoba disekitarnya tidak lagi hanya diam dan tidak peduli karena tidak aada kaitannya dengan anak dan keturunannya seperti yang berlaku di masyarakat Mandailing Natal hari ini.
PENERAPAN MEDIA PEMBELAJARAN TERHADAP MOTIVASI SISWA
Authors: Nurhidayati Voni Nurhidayati , Fitra Ramadani  , Fika Melisa  , Desi Armi Eka Putri  
Published: August 2023

Media pembelajaran merupakan sumber belajar yang dapat membantu guru untuk memperkaya persepsi siswa, dengan berbagai jenis media pembelajaran oleh guru dapat dijadikan sebagai bahan untuk menanamkan pengetahuan kepada siswa. Media pembelajaran Dimaknai sebagai penyalur pesan atau informasi pembelajaran untuk mengkondisikan seseorang (siswa) untuk belajar atau segala sesuatu yang dapat menyampaikan pesan, dapat merangsang pikiran, kehendak untuk merangsang belajar . Tujuan penelitian ini yaitu untuk mengetahui bagaimana penerapan media pembelajaran terhadap motivasi belajar siswa. Metode yang digunakan dalam penulisan artikel ini yaitu literature review, metode ini berisis ulasan, rangkuman, serta penjelasan yang mencangkup pemahaman dan pikiran yang di dan hasil pemikiran penulis. Hasil dari penelitian ini, penggunaan media diharapkan dapat menimbulkan dampak positif, seperti munculnya proses pembelajaran yang lebih kondusif, terjadinya umpan balik dalam proses belajar mengajar dan tercapainya hasil yang optimal. Kemampuan siswa dalam belajar dari berbagai sumber akan mampu menanamkan sikap pada diri siswa untuk selalu berinisiatif mencari berbagai sumber belajar yang mereka butuhkan. Penggunaan media yang tepat dapat membantu siswa yang mengalami kesulitan belajar, pembentukan kepribadian, motivasi belajar, dan lainnya..
PENGGUNAAN PENDEKATAN CIRC (COOPERATIVE INTEGRATED READING AND COMPOSITION) PADA SISWA KELAS V SD
Authors: Elisdo Saragih  
Published: August 2023

Pada masa sekarang ini teknologi semakin pesat, sehingga memudahkan setiap orang untuk mendapatkan informasi. Namun tidak demikian halnya bagi siswa dalam memahami suatu bacaan. Dari faktor tersebut hal ini berdampak pada minat dan ketrampilan siswa dalam memahami suatu bacaan. Hal ini ditunjukkan oleh pencapaian hasil belajar siswa dalam pembelajaran untuk membaca dan memahami suatu bacaan yang masih belum meningkat. Metode ini bertujuan meningkatkan proses pembelajaran ketrampilan membaca pemahaman siswa kelas V SD Harvard. Latar pada penelitian ini adalah SD Swasta Harvard dan yang menjadi subjek penelitian adalah siswa kelas V yang berjumlah 29 orang. Dalam penelitian ini model yang digunakan adalah model Penelitian Tindakan Kelas. Penelitian tindakan kelas biasanya dilakukan dengan 4 langkah yaitu (1) perencanaan, (2) tindakan, (3) observasi atau pengamatan, (4) refleksi. Pelaku utama pada penelitian ini adalah guru. Dengan menggunakan metode pendekatan Cooperative Integrated Reading and Composition (CIRC) menunjukkan peningkatan yang baik bagi peningkatan hasil belajar siswa kelas V dan guru melaksanakan kegiatan pembelajaran sesuai dengan Rencana Pelaksanaan Pembelajaran (RPP).
Escola, exigência e rigor
Authors: Trindade Rui , Ferreira Daniela , Cosme Ariana 
Published: August 2023

Este é um texto onde, a partir dos pressupostos do que Trindade e Cosme (2016) designam por paradigmas da instrução, da aprendizagem e da comunicação, se confrontam as perspetivas de exigência e rigor académicos que se coadunam com tais pressupostos. Como resultado da reflexão produzida, constata-se, em primeiro lugar, que estas categorias não só não são propriedade do paradigma da instrução, como são entendidas, em alternativa, como categorias indispensáveis à afirmação de uma Escola que visa assumir-se como um espaço culturalmente significativo e humanamente empoderador. Neste sentido, estamos perante um texto que, ao libertar tais categorias curriculares e pedagógicas das amarras onde os instrucionistas as encerraram, pretende contribuir para propor uma leitura mais complexa e inclusiva acerca da exigência e do rigor académicos, no momento em que tem em conta quer os alunos e as suas singularidades quer uma outra visão epistemológica acerca do conhecimento.
U-tube Steam Generator Fault Detection Using Fuzzy Model
Authors: Ahmad Zuheir 
Published: August 2023

AbstractIn safety critical system like power plant system, the problem of detecting the occurrence of faults is of paramount importance due to their disastrous consequences. To allow efficient performance under different operating conditions, a power plant system requires the integration of many subsystems.This results in a complex system which will inevitably be subjected to faults caused by actuators, sensors or subsystems faults during operation. One of the major subsystems, in power plant is U-tube Steam Generator (UTSG). This paper is concerned with Fault Detection and Isolation (FDI) of UTSG system using fuzzy model. These methods aims at checking the consistency between observed and predicted behaviour by residuals. When an inconsistency is detected between the measured and predicted behaviours obtained using a faultless system model, a fault can be indicated. Simulation results presented in the final part of the paper confirm the effectiveness of this approach.
Quantifying in Situ Horizontal Stress in the Niger Delta Basin, Nigeria
Authors: O Adewole E. , Healy D. 
Published: August 2023

AbstractWe have determined the direction and the magnitude of the two horizontal stress components (minimum and maximum) in the Niger Delta Basin, Nigeria from petroleum exploration data from the region. Faults interpreted from a high fold 3D seismic data imply a dominant normal faulting regime. It suggests that maximum horizontal stress (SHmax) is an intermediate principal stress in the basin. The magnitude of the horizontal stress is quantified by two methods: as a function of vertical stress and as a function of overpressure at depth. The scattering of SHmin values estimated from application of the Eaton (1969) method and Leak Off Test (LOT) data is indicative of the SHmin gradient varying with depth in the basin. We propose an inhomogeneous stress field and more than one source of stress in the region based on the result of multiple directions determined from the analysis of 32 borehole breakouts recorded in six wells. We suggest the occurrence of repeated earth tremors in the region is likely to be due to the reactivation of rifted continental crust linking the regional onshore faults along major lineaments.
Analog Mars Rover Service as a Robotic Hardware and Team Building Platform
Authors: Meszyński Sebastian , Józefowicz Mateusz 
Published: August 2023

AbstractMagma White is an analog Mars rover platform created by ABM SE and offered to the developers of scientific equipment built for space exploration missions, who want to test their devices at low- and mid- Technology Readiness Levels in demanding conditions of desert, Alpine and polar regions or artificial environments. The rover offers a remote access to the payload through the Magma White mission control system. The paper summarizes the background of the analog solution. It covers universal interfacing setup and issues related to the team and technological partners, who supply elements of the payloads. Two analog missions provide a case study: Dachstein 2012, when “WISDOM” ground penetrating radar for Exomars was tested onboard Magma White, and Morocco 2013, with “L.I.F.E.” payload and complete remote access from Europe.
Analysis of the Breakdown and Electrical Arc in the Process of Switching on
Authors: Kolimas Łukasz 
Published: August 2023

AbstractSwitching on current in an electric circuit occurs hence not due to securing the contact of contacts, but as a result of electric break down of the isolation of the given environment. The switching-on arc glowing time depends hence on the value of the intensity of electric field in the contact area, and on the velocity of contacts closing. The paper describes the analysis of the electrical fields and problems of the arc switching time in contact switches during making of a current in current paths and test.
Energy Recovery from Polyethylene Terephthalate(PET) Recycling Process
Authors: Radin Mohamed Radin Maya Saphira , Gazala Sanusi Misbah  , Wurochekke Anwaruddin Ahmed , Mohd. Kassim Amir Hashim bin 
Published: August 2023

AbstractSolid waste generation especially from plastics increase every year due to the current consumption habit in the society. The improper disposal of plastics has been a major concern to environment as they are not easily degradable. In this study, energy derived from Polyethylene Terephthalate (PET) plastic bottle recycling process were studied. Raw and used PET samples were produced by using injection moulding machine. The amount of energy recovered upon production was calculated by using Universal Testing Machine. The effect of temperature and pressure during production on raw and used PET plastics were measured. Temperature at 260 °C and 7 Mpa pressure gave highest energy production. The results of raw and used PET samples exhibit comparable amount of energy 0.8J and 2.044 x 10-4MJ/Kg - 2.0635 x 10-4MJ/Kg respectively. Generally, used PET (260°C and 6 Mpa) were to be reprocessed to regain the significant energy production that are lost upon discarding. Mechanical tests were conducted on the PET and were compared with HDPE to study the temperature effect on the mechanical properties. PET show decrement of average hardness value 8.99 % after filled with hot water at 100 °C. The increased of hot water filling temperature subsequently reduced the tensile strength and hardness value for both HDPE and PET. From this experiment, it is expected that energy recovery derived through the PET recycling can be optimized as part of an integrated waste management strategy.
Communication in Automotive Networks Illustrated with an Example of Vehicle Stability Program: Part I - Control Area Network
Authors: Elżbieta Grzejszczyk 
Published: August 2023

AbstractThe design of DAS (Direct Adaptive Steering) systems has been used in aviation for a long time. A few months ago a Japanese automotive company, Nissan Motor Co, for the first time introduced a steer-by-wire (no mechanical connection between the steering wheel and the front wheels of the car) solution - to the automotive world in their Infiniti Q50 car. This article aims to explain the issues related to controlling the car automation system, in which one of the control parameters is the examined turn of the wheels assigned by the driver (or the DAS system).
Vehicle Stability Control (VSC) and Supervision based on CAN network: Part II
Authors: Elżbieta Grzejszczyk 
Published: August 2023

AbstractHigh reliability and velocity of on-board computers (CAN+, FlexRay) enable monitoring and controlling, in real time, various events related to vehicle motion. This article includes an example of control process related to ESP (Electronic Stability Program) subsystem.Concise ESP performance curve is followed by description of system control based on the controllers and CAN bus. At the end, an example of low-power actuator system control versus parameters requested with keyboard or random number generator, which simulates events in real time, is described.
A Finite Element Approach to the Möhr-Coulomb and Kupfer-Hilsdorf-Rusch Concrete Failure Criteria in Tension
Authors: Han A. L. , Sukamta  , Indriyantho B. R. 
Published: August 2023

AbstractOver the years, the failure envelope of plain concrete has been studied and constructed by various researchers. Since concrete is a non-homogeneous material, its behavior under bi-axial stresses is not as straight forward as steel. Also, the assumption that concrete exhibits an isotropic behavior under loading is not completely true since the failure mode due to tension and compression differs significantly. This research work looked into the correctness of the two most known failure criteria; the Mӧhr-Coulomb (MC) and the Kupfer-Hilsdorf-Rusch (KHR) envelope. In reaching the goal, a Finite Element Model (FEM) was constructed, and a plain concrete beam subjected to flexure was run through the program for a range of concrete compressions strengths. To validate the FEM program, the resulting load-displacement curves were calibrated to experimentally tested specimens. The load-displacement response and the stress-strain behavior at the beam’s center-line up till failure, was recorded for analyze purposes. This research work was conducted at the Structural and Material Laboratory, Diponegoro University in Semarang, Indonesia.
Archaeology versus Urban Development in Cartagena
Authors: Vázquez Francisco Segado , Albendín José Manuel Maciá 
Published: August 2023

AbstractArchaeology has taught us what our origins are, but frequently it works in an independent way, avoiding any kind of collaboration with other disciplines such as Urban Development. Most often, archaeologists, managed by different government bodies, tend to work independently of urban planners. This system has led to archeologists getting the recognition for their discoveries while at the same time depriving society of the knowledge of the cities origin. As a consequence, urban development cannot fulfill its role. The fact that archeological and urban development projects are carried out separately is the main reason for the absence of any relationship between current town planning in the cities and old and buried urban planning. As a result, society is the loser in a battle in which there are no winners.In Cartagena (Spain), Pedro A. San Martín (1921-2013), an architect, a member of the Department of Fine Arts of the Ministry of Culture, Local commissioner of Archaeological Excavations and Director of the Municipal Archaeological Museum of Cartagena, developed a multi-layered approach (technical and urban) in the pursuit of one central objective: the revaluation of the city in its entirety. He tried to be an architect among archaeologists, learning the methods and ways in which archaeologists worked, and also an archaeologist among architects, trying to explain to them how they had to coordinate their discoveries in order to achieve a viable relationship between the old and the new city in Cartagena. His efforts are a great example of how both disciplines should be combined.
Strengthening of masonry using natural fibers bonding with highly deformable adhesives
Authors: Kwiecień Arkadiusz 
Published: August 2023

AbstractStrengthening of cracked masonries of poor construction using composite materials of high strength and stiff adhesives of low deformability, like lime and cement mortars or epoxy resins, does not increase significantly the capacity of masonries in seismic areas. This is because of the stress concentration occurrence. The use of highly deformable materials as adhesive and matrix allows reducing peaks of stress concentration in weak brittle substrates, causing increase of composite strengthening efficiency.In the paper, there were tested masonry units (bricks Rosso Vivo - A6R55W) strengthened by GFRP, BFRP, CFRP and BBFRP fibers bonded on epoxy resin and highly deformable polymer PS. The Single Lap Shear Test was used for comparison of stiff and deformable matrix and adhesive materials, bonding various fibers to the brittle substrate. The significant strength increase of the tested masonry specimens was obtained in the case of the use of highly deformable interface materials than of barely deformable bonding materials. Lower level of the shear stress in the substrate results in increasing of load capacity of masonries, thus applying of the highly deformable polymer PS as a matrix and an adhesive to the weak masonry substrate is more advantageous than classically using stiff epoxy adhesives. It was confirmed by other laboratory and insitu tests, in which GFRP and BFRP grids bonded on the polymer PS adhesive were applied for strengthening of masonry and concrete structural elements.
Improvement of Sound Insulation Performance of ALC Walls Using Mock-up Experiments
Authors: Haan Chan H. , Hong Seong S. 
Published: August 2023

AbstractMulti-unit dwelling has comprised the largest part of living in modern society where noise problems have become a social issue. Autoclaved lightweight concrete (ALC) panel and blocks have been widely used in residential, commercial and industrial buildings as its lightness and workability. However, the sound insulation performance of ALC is not high due to its light weight and the porousness. This study aimed to improve the sound insulation performance of ALC walls between housing units by changing the structure of the walls including layer of material, thickness of the air cavity, and connecting materials. In order to this, computer modeling and laboratory mock-up tests were undertaken to measure the STC of four different structures. As a result, the single-number quantities (Rw+C) of 61-68 dB, the first grade of sound insulation performance, can be acquired when ALC blocks were constructed with gypsum board and air cavity connected with metal or resilient channel.
Optimation of Electrical Energy Generation for Low Rise Office Building with Folding-BIPV Concept
Authors: Susan  
Published: August 2023

AbstractBIPV is an architectural concept that related to energy contribution. The system has functions of producing electricity as well as building form giver. The effectivity of BIPV depends on solar radiation received. Meanwhile, the solar radiation received depends on numbers of solar receiving area and environmental shading. Environmental shading will decrease the effectivity of BIPV. But, integrated configuration of folding-BIPV is expected to create more numbers of solar receiving area. The integrated configuration of folding-BIPV will create optimum BIPV, both in electrical generation and building form giver. Experiment to low rise office building in tropical climate is done by giving folding treatment. The experiment also considers about environmental shading. Evaluation is done by analyzing and optimizing the numbers and uniformity of solar radiation received. Simulation with ARCHIPAK 5.1 is used as experimental research tool. The simulation is used to calculate annual radiation received (kWh/m2) from folding-BIPV configuration. Manual calculation is used to calculate total annual radiation received (kWh) and uniformity percentage. Gradient diagram is used to do the optimation. Result of this research is an optimation of electrical energy generation in low rise office building which use folding-BIPV concept.