bluuebunny/crossref_metadata_2025 huggingface dataset:
Concept of Mission Control System for IN2Lab testing field for Automated Driving
Authors:   Technische Hochschule Ingolstadt, GERMANY, Slavík Martin , Vaculín Ondřej ,   Technische Hochschule Ingolstadt, GERMANY
Published: April 2022

"Automated driving brings very high demands on all vehicle systems. In order to meet these requirements, automated vehicles are equipped with various vehicle sensors to collect information about the actual vehicle environment. Current systems are based on data acquired by in-vehicle sensors, such as radar, lidar and camera, which generate a comprehensive environment model where an automated vehicle locates. The sensors differ in their technical performance parameters such as range, resolution, reliability, sensitivity and robustness. The use of heterogeneous sensors allows the technologies to complement each other in terms of their technical properties. The overall safety level is increased by information from several sensors by means of sensor fusion. Assessment errors of the on-board sensors may occur despite the continuous improvement and optimisation of measurements and fusion. Systems under development are especially prone to these errors. Such issues reduce the reliability and trustworthiness of the whole system. These errors, either from sensors or evaluation algorithms and sensor fusion, should be identified during the development of automated driving functions. Virtual driving tests, proving ground tests and, in later development phases, driving tests in real traffic (field tests) serve this purpose. The filed tests in real traffic are crucial for the validation of automated driving systems. Only the real environmental conditions offer a variety of driving situations to prove the safety of automated vehicles. However, the test vehicles in a traffic flow must under no circumstances worsen road safety and put other road users at risk. The project IN2Lab aims to increase the overall test field safety by an infrastructure based safety system installed along a test field. It consists of sensors, C2X communication and mission control centre. This paper presents a concept of Mission Control System. The system provides additional information about traffic flow, obstacles or weather conditions based on data from infrastructure to connected vehicles. Cameras, radars, lidars and C2X roadside units installed along the public test filed to collect data about the traffic flow. The fundamental functionality of the system is the monitoring of traffic flow and object classification. An additional safety value is a quasi-real-time data processing provides relevant information feedback about dynamic and static objects along the test filed to connected vehicles, especially to automated vehicles. These vehicles can use the information to improve their environmental perception confidence or to plan driving manoeuvers."
Analysis of optimal energy management strategies for the hybrid electric Formula 1 car
Authors:   ETH Zürich, SWITZERLAND, Duhr Pol , Schaller Maximilian , Onder Christopher H. ,   Power Unit Performance, Ferrari S.p.A., ITALY, Arzilli Luca , Cerofolini Alberto
Published: April 2022

Contemporary Formula 1 racing cars feature a high-performance hybrid-electric powertrain. It consists of a turbocharged internal combustion engine and two electric motor-generators coupled to the engine crankshaft and the turbocharger shaft. Besides the fuel tank, the battery is a second on-board energy storage. The energy management strategy in terms of battery energy deployment must be carefully optimized in order to cover a lap on a given race circuit as fast as possible. In particular, the finite size of the battery must be taken into account, since the electric boosting and recuperation capabilities of the powertrain are restricted when the battery is depleted or fully charged, respectively. So far, this problem has scarcely been investigated in a time-optimal racing context. In this paper, we include path constraints on the battery energy trajectory in a previously developed off-line convex optimization framework that is based on a model of the powertrain and the car’s longitudinal dynamics. The resulting minimum lap time problem is formulated as a second-order cone program and is solved numerically with global optimality guarantees. With this tool, we conduct a case study for a sweep of initial conditions on the battery state-of-charge and different charge or discharge targets over the lap. Thereby, we study the optimal solution to the energy management problem when either the lower or the upper bound on the battery state-of-charge is attained. First, we show that the optimal operating strategy differs substantially for these two cases: Whilst it is optimal to hit the upper bound only in one particular time instant and then discharge the battery again, the battery state-of-charge can be kept at the lower bound for prolonged sections of the lap. We highlight that these differences are related to the particular topology of the Formula 1 power unit, and in particular to the interaction between the two motor-generator units. Second, based on Pontryagin’s minimum principle, we analyze the trajectory of the costate variable associated with the battery state-of-charge. Indeed, the costate variables are crucial for the parameterization of optimal control policies that can be implemented on the car for on-line control. Our findings show that the impact of battery deployment on the achievable lap time, and therefore the structure of the optimal control policy, varies over the course of the lap. In fact, the changes in the battery costate variable are linked to the limits on electric boosting and recuperation imposed by the Formula 1 regulations. The results underline the importance of considering all the relevant cross-couplings in this complex hybridized powertrain.
Bodies and trailers effect on CO2 emissions '“ a regulatory proposal for Europe
Authors:   IDIADA Automotive Technology, S.A., SPAIN, Font Xavier , Luján Carlos
Published: April 2022

With the climatic change already classified by some governments and organizations as a climatic emergency, and with the aim of fulfilling the acquired compromises, such as the Paris agreement, European Union is developing several measures in order to reduce the CO2 emissions. One of the main contributors to CO2 emissions in Europe is the fleet of freight vehicles which are on the European roads daily, with a 25% of the total amount of CO2 emissions emitted by road transports. The EU has already tackled a big part of the problem, with the entry into force of regulations defining strict CO2 limits for passenger cars (WLTP cycle), as well as for trucks (VECTO). EU strategy is still ongoing, with different proposals for the extension of the scope of these measures, not only to include additional categories of vehicles, but also to evaluate the effect of innovative technologies on the fuel efficiency of those vehicles. One of those proposals is the extension of the scope of regulation (EU)2017/2400 implementing Regulation (EC) No 595/2009 of the European Parliament and of the Council as regards the determination of the CO 2 emissions and fuel consumption of heavy-duty vehicles and amending Directive 2007/46/EC of the European Parliament and of the Council and Commission Regulation (EU) No 582/2011 so as to include the effect of bodies for completed vehicles and trailers or semitrailers in the global efficiency of trucks. As a result of a public call for tenders from DG-CLIMA on the subject “Bodies and trailers – development of CO2 emissions determination procedure”, IDIADA, in association with Graz University of Technology and Transport & Mobility Leuven NV has defined a methodology to consider the effect of bodies and trailers on CO2 emissions. This paper will focus on the analysis of the different existing regulatory schemes worldwide that has been used as a starting point for the definition of the methodology. Furthermore, a comparison between such existing schemes and the proposed methodology is presented, considering the particularities of the European fleet of commercial vehicles. Finally, an overview of the next steps of the European union with regards to the introduction of such proposal as part of the European regulatory Framework will be analyzed.
Head and Neck Loading Trends in IIHS Side Impact Testing
Authors:   Exponent, UNITED STATES, Isaacs Jessica , Toney-Bolger Megan , Campbell Ian
Published: April 2022

Low- to moderate speed side impacts occur with some frequency in the real world. Prior research into occupant responses in low- to moderate speed side impacts are sparse and have largely focused on evaluating responses of volunteers in low severity collisions or using Hybrid III Anthropomorphic Test Devices (ATDs) for comparison with volunteers and/or in moderate severity impacts. The objective of this study was to examine trends in head and neck loading during side impact testing in new vehicle models over the prior two decades. Data from 371 simulated side impact crash tests (model years 2002 to 2020) conducted as a part of the Insurance Institute for Highway Safety (IIHS) Vehicle Side Impact Crashworthiness Evaluation Protocol were obtained. This evaluation involved a stationary test vehicle struck on the driver side by a crash cart fitted with an IIHS deformable barrier element at an impact velocity of approximately 50 kph resulting in a change of velocity of approximately 24 kph (23.8 ± 3.7 kph) of the test vehicle. Instrumented 5th percentile female SID-IIs dummies were positioned in the driver seat and the left rear seat. Head injury criterion (HIC 15), maximum lateral bending (Mx) and compression (I-S force) were calculated for all tests to evaluate head and neck loading, respectively.  Qualitative and quantitative comparisons were also made for the 22 paired optional side airbag tests. Trends in the test dummy responses were compared across model years and vehicle classes (passenger light trucks and vans versus cars).  There appeared to be a decrease in biomechanical loading with model year for the head and neck metrics (HIC 15, lateral bending, and compression). There were also differences observed between driver and passenger metrics. It is noteworthy that all data points were well below published injury assessment reference values for all model years and vehicle types.
Pedestrian head injury prediction based on vehicle section image using machine learning.
Authors:   Mahindra Research Valley, Mahindra & Mahindra Pvt Ltd, INDIA, Shanbhag Ganesh
Published: April 2022

Child occupant injury performance evaluation is integral part of most Consumer based and Insurance based vehicle safety evaluation protocols worldwide. New CAR Assessment Protocols (NCAP) now have separate ratings exclusively to evaluate Child dummy performance for different test scenarios like Frontal ODB, Full frontal, Side MDB and Side Pole etc. Hence all vehicle equipment manufacturers have need and focus of maximizing child injury performance in vehicles. Sled tests are proven method of optimizing various restraint systems like Seat belts, Driver Airbags, Passenger Airbags, Steering columns and Seats etc. Obvious benefits sled tests is that single fixture can be used for multiple tests, thereby avoiding the need of multiple vehicles in development stage which are quite expensive at early stages of vehicle development. For frontal type of impact cases, acceleration or deceleration based sled tests can be used depending on test facility available. In typical frontal impact scenarios like Frontal impact with rigid wall, Offset barrier impact or Pole impacts vehicle will be subjected to Pitching, Yawing and Rolling motion before bouncing back motion. Obviously, the motions are pronounced as we move front of vehicle to rear end. (from first row to second row and third row if any etc) Sled tests are conventionally used for tuning restraints in first row of occupants with good correlation, as effect of pitch, roll and yaw motions in first row are relatively less. However, as one move to second row, effect of pitching and rolling motions experienced by dummies are relatively high. Hence one should be careful of results from sled test. In the present study an attempt is made to simulate child injury performance of P3 dummy positioned on second row seat on defined child seat for 64 kmph frontal Offset deformed barrier type test. Sled pulses are carefully tuned to capture key injury patterns. Thence restraint parameters are tuned to improve child dummy injuries. In the last part of study correlated sled model will be used to compare P3 series child dummies vs Q3 series of child dummies. A comparative study of P3 vs Q3 dummies will be presented for a given vehicle pulse.
Environment-on-Board Predictive Braking Control Functions for Autonomous Driving During Sudden Changes in the Road Friction Coefficient on Sharp Curves
Authors:   Tokyo University of Agriculture and Technology, JAPAN, Kojima Toshinori , Pongsathorn Raksincharoensak
Published: April 2022

Research Questions/Objective In the context of autonomous and connected vehicle technology, this research aims to develop an environment-on-board predictive braking control system, regulating the vehicle velocity to a desired value, in order to maintain and enhance path-following performance and vehicle stability when a vehicle is driven on a path where the road friction coefficient changes suddenly on a curve. If the vehicle enters a wet road from a dry road and moves on to a dry road at a high velocity, the vehicle suffers unexpected lateral disturbances, thereby causing it to destabilize and leading to deviation from the lane. Therefore, in this research, it is important to find a velocity, which the vehicle can turns on a curve that has an arbitrary curvature radius and wet road friction coefficient without deviating from the lane. Methodology In order to design the predictive braking control, the desired velocity needs to be calculated. By transforming the equation of simplified linear two-degree-of-freedom bicycle model the velocity can be expressed in terms of the curvature radius, road friction coefficient, lateral deviation and each vehicle parameter. Hence, if the definition of lane deviation is that lateral deviation is equal to 0.85 m, substituting its value gives the desired velocity that should be decelerated before entering a wet road. In addition, PID control is used to follow that velocity. The effectiveness of this control system is verified using a nonlinear four-degree-of-freedom four-wheel model and a full vehicle model of the IPG CarMaker under various conditions. Results To verify the effectiveness of the proposed control system, simulations of a vehicle driving through a curve which has a wet road surface are performed at various conditions that the wet road position, wet road friction coefficient and initial velocity differ from each other. Furthermore, the vehicle behavior such as side slip angle and lateral deviation, and the tire workloads are analyzed to evaluate vehicle stability and path-following performance. The results of these analysis show that the vehicle can be stabilize and it can be prevented from deviating from the lane by applying the control which decelerates the vehicle to the desired velocity before entering a wet road. Conclusions Based on the long-horizon road friction and curvature information from infrastructure together with connectivity between intelligent vehicles, the environment-on-board predictive braking control is developed to prevent vehicles from deviating from the lane even when the road friction coefficient changes suddenly on a sharp curve, and its effectiveness is verified through full-vehicle simulation. This system improves the vehicle stability and path-following performance under various conditions, including the position of a wet road.
Miguel de Estete: por el Qápaq Ñan de los incas y los finos puentes colgantes
Authors: Coello Óscar
Published: April 2022

El presente artículo estudia uno de los textos más importantes con los que se inicia la prosa castellana en el Perú: el relato de Miguel de Estete en pos del santuario más grande de la mar del Sur, Pachacámac. En un momento en que la historia era un género literario, este trabajo examina los lugares artísticos del discurso narrativo de este singular escritor. Sin duda, su texto fue la primera visión detenida del esplendor del país andino y de su alto desarrollo cultural.
Corporeización en la toponimia quechua
Authors: Manallay Moreno Pedro Luis
Published: April 2022

El presente artículo analiza la tesis de la corporeización a través de datos toponímicos procedentes de los dialectos quechuas de Llata (Huánuco) y Huaccana (Apurímac). Demostraremos que el sistema toponímico quechua permite respaldar la tesis señalada, puesto que las experiencias son importantes para generar conceptualizaciones acerca de los puntos geográficos. Asimismo, sostendremos que, en la producción toponímica corporeizada, el proceso de prominencia ontológica (Schmid, 2007) es necesario para elaborar los nombres de lugares. En suma, sobre la base de la tesis corpórea, estableceremos una línea entre los mecanismos semánticos culturales y los mecanismos semánticos universales que se hallan en los topónimos quechuas.
Aproximación cognitiva de la polisemia en shipibo
Authors: Rocha Martínez Rolando
Published: April 2022

El objetivo del presente estudio es identificar los mecanismos que determinan la explicitación de enunciados polisémicos en shipibo, lengua peruana de filiación lingüística pano. En esta se evidencian casos de polisemia que, como en muchas otras lenguas, están motivados por la experiencia de los individuos y la interacción vivencial de estos con el mundo que categorizan y organizan. Detectamos que, tanto a nivel nominal como verbal, la polisemia en shipibo consiste en la estructuración mental de sentidos o significados, la cual genera un mecanismo proficuo que hace posible su reorganización permanente mediante la incorporación de significados nuevos; tal es el caso de bero ‘ojo’, que puede significar adicionalmente ‘semilla’ y ‘especie de sardina’. En tal sentido, se abandona la idea monosémica de un único significado con opciones múltiples en el uso y se propone una red de relaciones prototípicas que presenta una organización interna estructurada.
Comportamiento de la neología en tiempos de coronavirusLa neología estilística en tiempos de coronavirus
Authors: Luna García Rosa
Published: April 2022

El objetivo central de esta investigación mixta fue analizar las características de los neologismos estilísticos y denominativos acuñados durante el contexto del coronavirus. Para dicho fin se compiló un corpus representativo y equilibrado constituido por 831 neologismos coronavíricos extraídos de fuentes periodísticas hispanas, diccionarios sobre la covid-19 y observatorios de neología. Los resultados obtenidos permitieron arrojar las siguientes conclusiones: La neología coronavírica cuenta con un elevado porcentaje de neologismos expresivos con gran dispersión temática. Los neologismos basados en la acronimia, total o parcial fueron el recurso privilegiado en la acuñación de neologismos expresivos coronavíricos. La inestabilidad sistemática de la neología coronavírica se reflejó en la considerable variación denominativa existente en los dos tipos de neología, en la diversidad de procedimientos de formación utilizados para un mismo referente y en los diferentes nodos temáticos en los que aparecen dichas variantes.
COMPARAÇÃO DOS EFEITOS TERAPÊUTICOS ENTRE SECRETOMAS DE CULTURA 2D E 3D DE CÉLULAS-TRONCO DO TECIDO ADIPOSO (CTA) EM MODELO EXPERIMENTAL DE DIABETES TIPO 1
Authors: DOS SANTOS XAVIER DIAS ISABELLE , PINHEIRO DA SILVA DAPHNE , RIBEIRO DA SILVA PEREIRA KARINA , STUMBO MACHADO ANA CAROLINA , ALVES THOLE ALESSANDRA , AFONSO COSTA CORTEZ MARQUES ERIKA , DE CARVALHO LAÍS , NUNES DE CARVALHO SIMONE
Published: April 2022

DIABETES TIPO 1 (DT1) ? UMA DOEN?A EM QUE AS C?LULAS BETA DO P?NCREAS S?O DESTRU?DAS, LEVANDO A QUEDA NA PRODU??O DE INSULINA E HIPERGLICEMIA. TERAPIAS COM C?LULAS-TRONCO S?O UTILIZADAS EM V?RIOS ESTUDOS EXPERIMENTAIS E CL?NICOS EM DOEN?AS AUTOIMUNES DEVIDO ? SUA CAPACIDADE REGENERATIVA E IMUNOMODULAT?RIA. C?LULAS-TRONCO MESENQUIMAIS (CTM) PODEM TER UM PERFIL TERAP?UTICO MELHORADO PELO USO DE ALGUMAS T?CNICAS COMO, POR EXEMPLO, O CULTIVO 3D. SENDO ASSIM, O PRESENTE ESTUDO SE PROP?S A VERIFICAR O POTENCIAL TERAP?UTICO DO SECRETOMA DE C?LULAS-TRONCO MESENQUIMAIS DO TECIDO ADIPOSO SUBCUT?NEO (CTA) CULTIVADAS EM MODELO 2D OU 3D EM CAMUNDONGOS COM DT1 INDUZIDA POR INJE??ES DE ESTREPTOZOTOCINA. AP?S TRATAMENTO, PERFIL DE CITOCINAS SECRETADAS PELAS CTAS E PROTE?NAS DO P?NCREAS (INSULINA E PDX-1) FORAM QUANTIFICADAS. N?VEIS DE IL-6 E IL-2 ENCONTRAVAM-SE AUMENTADOS NO SECRETOMA 3D, ENQUANTO IL-4 APRESENTOU-SE DIMINU?DO. SECRETOMA 2D FOI MAIS EFICAZ NA DIMINUI??O DA GLICEMIA E, TAMB?M, NO AUMENTO DA EXPRESS?O DE PDX-1 PANCRE?TICA NOS ANIMAIS DIAB?TICOS. EM CONTRA-PARTIDA, AMBOS SECRETOMAS N?O AUMENTARAM O N?VEL DE EXPRESS?O DE INSULINA. ESSES RESULTADOS DEMONSTRAM QUE O MEIO CONDICIONADO DE C?LULAS CULTIVADAS EM 3D APRESENTA UMA ALTERA??O NO SEU PERFIL IMUNOMODULAT?RIO, POR?M N?O H? UMA MELHORA NOS P?NCREAS DOS ANIMAIS DIAB?TICOS. OUTROS ESTUDOS SER?O NECESS?RIOS PARA MELHOR AVALIAR O POTENCIAL TERAP?UTICO DO SECRETOMA DESSAS C?LULAS NA DIABETES TIPO 1.
DEVELOPMENT OF Y CONNECTOR FOR MECHANICAL VENTILATORS THROUGH ADDITIVE MANUFACTURING DURING THE COVID 19 PANDEMIC
Authors: DINIZ GALLARDO ISABELLA , ALBERTO MARQUES DOS SANTOS FILHO CARLOS , VINÍCIUS ARAÚJO SALES LUCAS , MORAES RODRIGUES DA COSTA JÚLIA , KELLSSYA LEITE FILGUEIRA ANNA , JORGE VALADARES EDUARDO , ELIAS DE MORAES MISAEL , RAMOS CASTELO BRANCO RODOLFO , YASMYNE NASCIMENTO MARTINS KETINLLY
Published: April 2022

GIVEN THE SCENARIO IN WHICH THE PLANET FOUND ITSELF DURING THE COVID-19 PANDEMIC, ADDITIVE MANUFACTURING (AM), WHOSE USE IN THE HEALTH AREA HAD BEEN ON THE RISE, ACTED AS A STRONG ALLY IN THE MANUFACTURE OF PPE AND VARIOUS MEDICAL DEVICES, SUCH AS OF MECHANICAL VENTILATORS NEEDED TO TREAT COMPLICATIONS ARISING FROM THE CORONAVIRUS. THUS, THE AIM OF THE STUDY WAS TO PRESENT AM AS A VIABLE MANUFACTURING PROCESS FOR A Y-CONNECTOR FOR MECHANICAL VENTILATORS DUE TO THE DEMAND OF COVID-19 IN A HOSPITAL IN THE CITY OF CAMPINA GRANDE. THIS IS A SCIENTIFIC RESEARCH OF AN APPLIED NATURE AND A QUALITATIVE APPROACH, USING THREE-DIMENSIONAL (3D) TECHNOLOGIES THROUGH CAD/CAM SOFTWARE TO DEVELOP AND OBTAIN A Y CONNECTOR FOR A MECHANICAL VENTILATOR, USED AS AN INTERMEDIARY IN DOUBLE BRANCH BREATHING CIRCUITS, DEVELOPED IN 3D TECHNOLOGIES LABORATORY - LT3D.
IN VIVO EVALUATION OF A BILAYER SCAFFOLD FROM PLGA/FIBRIN AND FIBRIN HYDROGEL FOR SKIN REGENERATION
Authors: GIRÓN BASTIDAS JULIANA , MAURMANN NATASHA , SILVA DE OLIVEIRA LUIZA , PRANKE PATRICIA
Published: April 2022

BECAUSE THE INCIDENCE OF SKIN WOUNDS REQUIRING CLINICAL TREATMENT REPRESENTS A PUBLIC HEALTH PROBLEM WORLDWIDE, THE PRESENT WORK AIMS TO DEVELOP A BILAYER SCAFFOLD OF POLY (LACTIDE- CO- GLYCOLIDE) (PLGA)/FIBRIN ELECTROSPUN MEMBRANE AND FIBRIN HYDROGEL LAYER TO BE TESTED IN VIVO AS SKIN SUBSTITUTES. PRIMARY CULTURES OF FIBROBLASTS AND KERATINOCYTES WERE ISOLATED FROM ISOGENIC WISTAR KYOTO RATS (WKY). FIBROBLASTS WERE CULTIVATED IN THE FIBRIN HYDROGEL AND KERATINOCYTES ON THE ELECTROSPUN LAYER TO GENERATE A SKIN SUBSTITUTE USING AN AIR/LIQUID SYSTEM. SCAFFOLDS WERE TESTED IN A FULL-THICKNESS WOUND MODEL IN WKY RATS OF 3 MONTHS. THREE GROUPS WERE ANALYZED MACROSCOPICALLY AND MICROSCOPICALLY: 1 (BILAYER SCAFFOLD WITHOUT CELLS), 2 (HETEROTYPIC SKIN SUBSTITUTES), 3 (NEGATIVE CONTROL). PARTIAL RESULTS SHOWED A SCAB FORMATION AT DAY 14 IN ALL ANIMALS FROM GROUPS 1, 2, AND 3. NO SIGNS OF WOUND INFECTION WERE PRESENTED. ON DAY 14, ALL WOUNDS WERE RE-EPITHELIALIZED AND GRANULATION TISSUE WAS THICKER IN GROUP 2. IT COULD BE CONCLUDED THAT THE BILAYER SCAFFOLD IS THUS A PROMISING MATRIX TO BE USED AS A SKIN SUBSTITUTE. HOWEVER, IT WILL BE NECESSARY TO COMPLETE THE SAMPLE SIZE FOR EACH GROUP AND REALIZE HISTOLOGICAL AND IMMUNOENZYMATIC ASSAYS TO BETTER UNDERSTAND THE TISSUE REGENERATION PROCESS.
PEMBELAJARAN MATEMATIKA DI SEKOLAH DASAR BERBASIS ANDROID
Authors: Malala Syamsuddin , Basrie Basrie
Published: April 2022

Perangkat lunak aplikasi adalah suatu subkelas perangkat lunak komputer yang memanfaatkan kemampuan komputer langsung untuk melakukan suatu tugas yang diinginkan pengguna. Biasanya dibandingkan dengan perangkat lunak sistem yang mengintegrasikan berbagai kemampuan komputer, tapi tidak secara langsung menerapkan kemampuan tersebut untuk mengerjakan suatu tugas yang menguntungkan pengguna. Contoh utama perangkat lunak aplikasi adalah pengolah kata, lembar kerja, dan pemutar media.

Aplikasi pembelajaran matematika tingkat sekolah dasar ini menyediakan beberapa materi matematika dan latihan soal untuk pembelajaran siswa/siswi sekolah dasar. Aplikasi pembelajaran matematika tingkat sekolah dasar ini dikembangkan dengan metode pengembangan sistem prototype, metode pengumpulan data dengan wawancara, observasi, kuisioner dan studi pustaka, analisa perancangan sistem dengan menggunakan flowchart. Dalam mengembangkan aplikasi pembelajaran matematika tingkat sekolah dasar digunakan bahasa pemrograman Java, HTML, Eclipse sebagai editor android, dan Adobe Photoshop sebagai editor image. Metode pengujian aplikasi pembelajaran matematika tingkat sekolah dasar menggunakan metode pengujian White Box Testing dan Beta Testing.

Dengan adanya aplikasi ini, maka siswa/siswi sekolah dasar dapat membaca dan melatih kemampuan dalam bidang ilmu matematika dengan adanya materi dan latihan soal pada smartphone android yang dapat dibawa kemana saja.
PERANCANGAN SISTEM INFORMASI PENGGAJIAN KARYAWAN PADA CV. GASSA BERBASIS CLIENT SERVER
Authors: Praduana Muhammad Rega , Arfyanti Ita , Pratiwi Heny
Published: April 2022

Perancangan Sistem Informasi Kepegawaian Pada CV. GASSA. Penelitian, Program Studi Sistem Informasi. STMIK Widya Cipta Dharma. Pembimbing I : Ita Arfyanti S.Kom., MM.SI dan Pembimbing II : Dr. Heny Pratiwi, S.Kom., M.Pd., M.Ti. Penelitian dilakukan untuk dapat mengembangkan suatu sistem informasi kepegawaian pada CV. GASSA yang nantinya jika sistem ini berhasil dapat membantu tugas perusahaan pada saat melakukan penggajian Karyawan setiap periode. Penelitian dilakukan di CV. GASSA. Metode pengumpulan data dengan wawancara yang mengajukan pertanyaan yang berkaitan dengan sistem pegelolaan gaji karyawan. Dengan cara observasi, yaitu mengadakan Pengamatan secara langsung ke CV. GASSA. Dalam penelitian ini metode pengembangan sistem yang digunakan yaitu waterfall dengan perangkat lunak pendukung yang digunakan adalah PHP dan MySQL. Topologi jaringan yang digunakan adalah topologi star. Adapun hasil dari penelitian ini berupa suatu pengelolaan data gaji Karyawan berbasis client-server yang dapat meningkatkan pelayanan dan mempermudah pemberian gaji karyawan CV. GASSA.
SISTEM PENDUKUNG KEPUTUSAN PEMILIHAN PERGURUAN TINGGI BAGI SISWA SMA PADA SMA NEGERI 1 ANGGANA MENGGUNAKAN METODE TOPSIS BERBASIS WEB
Authors: Harpad Bartolomius , Arfyanti Ita , Rifaldi Dicky
Published: April 2022

Perguruan Tinggi merupakan jenjang pendidikan setelah pendidikan menengah (SMK/SMA/MA). Perguruan Tinggi di Kaltim yang memberikan pilihan-pilihan program studi yang sudah berstandar internasional, banyak fakultas di dalam suatu Universitas yang benar-benar memberikan jaminan untuk menyelenggarakan program pendidikan yang berkompeten baik itu mulai program Diploma, Sarjana atau Pasca sarjana. Dalam memilih pendidikan harus cermat terutama dalam memilih perguruan tinggi. Biaya Pendidikan di Kaltim menjadi salah satu faktor pengambilan keputusan bagi mahasiswa dalam memilih perguruan tinggi yang terbaik. Dengan adanya Pemilihan Perguruan Tinggi yang ada pada SMA Negeri 1 Anggana, sehingga siswa lebih relevan mengetahui informasi terbaru dan biaya terhadap keputusan mahasiswa memilih perguruan tinggi yang ada di Kaltim.Sistem Pendukung Keputusan untuk memilih perguruan tinggi pada siswa SMA yang dibangun menggunakan metode TOPSIS. (Technique For Order Preference By Similarity To Ideal Solution) TOPSIS merupakan metode pengambil keputusan multi kriteria. Metode TOPSIS didasarkan pada konsep bahwa alternatif terpilih yang terbaik tidak hanya memiliki jarak terpendek dari solusi ideal positif tetapi juga memiliki jarak terpanjang dari solusi ideal negatif. Kriteria yang digunakan adalah akreditasi, biaya, beasiswa kampus, jenjang pendidikan, fasilitas kampus, waktu kuliah dan unit kegiatan mahasiswa yang telah ditentukan oleh Guru Pembimbing Perguruan Tinggi SMA Negeri 1 Anggana.Sistem Pendukung Keputusan dengan menggunakan metode TOPSIS diharapkan dapat membantu siswa dalam memilih perguruan tinggi pada SMA Negeri 1 Anggana, sehingga siswa dapat menentukan perguruan tinggi dengan kriteria-kriteria yang sudah ditetapkan.
SISTEM PENDUKUNG KEPUTUSAN PENERIMAAN PENYIAR RADIO PADA RADIO KPFM MENGGUNAKAN METODE SMART (SIMPLE MULTIATTRIBUTE RATING TECHIQUE)
Authors: Arfyanti Ita , Yunita Yunita , Nurbawono Dwi Andrian
Published: April 2022

Sistem Pendukung Keputusan (SPK) adalah sistem yang dapat membantu seseorang dalam mengambil keputusan yang akurat dan tepat sasaran. Banyak permasalahan yang dapat diselesaikan dengan menggunakan SPK, salah satunya adalah Penerimaan Penyiar Radio Pada Radio KPFM dengan menggunakan bantuan metode SMART (Simple Multi Attribute Rating Technique).Tujuan dari penelitian ini adalah untuk menghasilkan Sistem Pendukung Keputusan Penerimaan Penyiar Radio Pada Radio KPFM dengan menggunakan bantuan metode SMART (Simple Multi Attribute Rating Technique) dengan harapan seleksi penyiar radio dilakukan secara obyektif. Dengan menggunakan bahasa pemrograman PHP dan database yang digunakan yaitu MySql. Dalam penelitian ini, teknik pengumpulan data yang digunakan adalah studi pustaka, observasi dan wawancaraHasil dari penelitian ini adalah dibuatnya sistem pendukung keputusan untuk melakukan keputusan penyiar radio yang diterima, dan tidak diterima untuk menjadi penyiar radio. Pengguna dapat menginputkan data penyiar, data kriteria dan data sub kriteria. Kemudian sistem akan mencari solusi dengan metode SMART (Simple Multi Attribute Rating Technique). Setelah keputusan didapatkan, maka sistem akan menampilkan keputusan tersebut.
PERANCANGAN SISTEM INFORMASI PENJUALAN DEVICE BERBASIS WEBSITE : STUDI KASUS PT. KOPERASI TELKOMSEL
Authors: Septian Rinaldi , Avrizal Reza , Suaedah Siti
Published: April 2022

Perkembangan ekonomi di Indonesia pada saat ini sudah begitu cepat, hal ini sedikit banyak ditandai dengan banyak bermunculannya bidang-bidang usaha yang baru didirikan. Proses bisnisnya dimulai dengan pengajuan kredit karyawan untuk pembelian produk perusahaan. Proses pengajuan kredit ini menggunakan form dalam bentuk fisik yang diisi oleh karyawan yang mengajukan kemudian mengirimkan form tersebut menggunakan jasa ekspedisi. Form tersebut kemudian akan di cek oleh admin KISEL untuk penentuan diterima atau tidaknya pengajuan tersebut. Proses bisnis tersebut masih terbilang cukup memakan waktu serta resiko kerusakan bahkan kehilangan berkas karena prosesnya masih tradisional. Akibatnya, penjualan perusahaan kurang optimal karena waktu yang dibutuhkan untuk dapat memproses satu pemesanan cukup lama. Dalam mengembangkan sistem pada penelitian ini menggunakan metode waterfall dengan bahasa penotasian menggunakan UML. Hasil yang diperoleh adalah sistem informasi penjualan device yang mana dapat mengurangi waktu pengajuan kredit karyawan.
ALAT BANTU MONITORING DEBET UANG NASABAH DI ATM HYOSUNG BANK BRI PADA PT. SWADHARMA SARANA INFORMATIKA BERBASIS ARDUINO
Authors: Azahari Azahari , Arfyanti Ita , Yono Eko Anggi
Published: April 2022

Penelitian dilakukan untuk dapat membuat sebuah alat yang bisa membantu memonitoring terjadinya debet uang nasabah yang nantinya jika penelitian ini berhasil dapat membantu PT. Swadharma Sarana Informatika dalam memberikan informasi dengan cepat berupa informasi kerusakan mesin ATM, sehingga dapat mempercepat penanganan dalam perbaikan mesin ATM.

Penelitian ini dilakukan di PT. Swadharma Sarana Informatika. Pengumpulan data yang digunakan yaitu dengan wawancara yang mengajukan pertanyaan-pertanyaan yang berkaitan dengan kerusakan mesin ATM yang tidak terdeteksi oleh monitoring. Dengan cara observasi, yaitu mengadakan pengamatan secara langsung ke PT. Swadharma Sarana Informatika dan ikut serta dengan teknisi FLM dan SLM ketika sedang memperbaiki mesin ATM.

Dalam penelitian ini metode pengembangan sistem yang dilakukan yaitu waterfall, dengan perangkat keras pendukung yang digunakan adalah, Arduino R3, Sensor Infrared (IR) Proximity FC-51, Modul RTC DS3231, dan Modul GSM SIM800L.

Adapun hasil akhir dari penelitian ini yakni berupa alat yang dapat mengirimkan pesan SMS ketika terjadi kerusakan mesin ATM yang berupa debet uang nasabah, kepada team scheduler. Sehingga dapat memberikan informasi langsung kepada teknisi FLM untuk segera dalam perbaikan mesin ATM.
PREFERENCES OF WINE CONSUMERS FROM DOLORES HIDALGO, GUANAJUATO: A CHOICE EXPERIMENT APPROACH
Authors: González-Juárez Araceli , Hernández-Ortíz Juan , Martínez-Damián Miguel Ángel , Melo-Guerrero Enrique , Valdivia-Alcalá Ramón , Cervantes-Luna Juan Oswaldo , Sandoval-Romero Fermín
Published: April 2022

The objective of this study was to determine which are the most relevant attributes of wine for consumers of this drink, in the region of Dolores Hidalgo, Guanajuato, Mexico. This with the purpose of providing information that may be useful to wine producers in the decisions to be made. The attributes to be evaluated were origin, variety, aging time in barrels, and price, paying special attention to the influence of the origin attribute. We used the method of choice experiments, for which 120 surveys were applied to wine consumers older than 18 years, in the municipality of Dolores Hidalgo, Guanajuato. Using the mixed logit model, we found that the most valued attribute was the aging time in barrels, followed by origin, and the variety at third place. The favourite product was a wine produced in Guanajuato, in 750 mL bottles, aged in wooden barrels for twelve months, Merlot variety, for which the respondents reported willingness to pay $750 MXN pesos.
Behavioral Economics: A Review & Bibliometric Analysis
Authors:   Associate Professor (Management), Area Chair-HR, OB , Graphic Era Deemed to be University Bell Road, Clement Town, Dehradun, Uttarakhand, Dr. Maitri Dr. Deepshikha Kalra
Published: April 2022

urpose – Existing literature has been reviewed on Behavioral economics to analyze the theoretical foundation. This paper aims to study the trend of publication. Based on the analysis further research agenda will be analyzed. Research Method – Bibliometric analysis of papers from the web of science database has been conducted. Comprehensive explorations of papers on behavioral economics have been done. Systematic literature reviews of a few papers were also conducted to get insights into the directions and content of the research. Different analytical tables of the web of science have been presented. Further Vosviewer has also been utilized to represent the trend with the help of map, bar, treemap visualization techniques.
What Drives Online Gaming Addiction? Loyalty Check and In-App Purchase Intention
Authors:   Faculty of Economics and Business, Sebelas Maret University. Jl. Ir. Sutami, No. 36A, Jebres, Surakarta, Central Java, Indonesia 57126., Putra Ronaldo Yolanda
Published: April 2022

Mobile gaming is known as a high and competitive growing industry of business. There have been lots of game released every day in the last two years. This study examines the relationship between online game addiction (withdrawal, mood modification, relapse) on loyalty and purchase intention in online game applications. The proposed model is empirically evaluated using LimeSurvey on 262 PUBG Mobile online game users. The analysis used partial least square-structural equation modelling (PLS-SEM). The results revealed that (withdrawal, mood modification, relapse) gives such significant and positive relationship toward purchase intention in online game applications. The relationship between mood modification and relapse positively and significantly affects online game loyalty. Withdrawal and loyalty have no significant positive relationship.
A qualitative study of the factors driving the temporary migration of workers from the Khyber-Pakhtunkhwa, Pakistan to Saudi Arabia
Authors: Rafiq Muhammad , Saeed Muhammad , Israr Muhammad
Published: April 2022

This study aims to explore the drivers of the temporary migration of workers from the Khyber-Pakhtunkhwa province of Pakistan to Saudi Arabia. Nearly two million Pakistanis work and live in Saudi Arabia; however, no such research has been conducted to study and configure their migration drivers. This research attempts to fill this gap. Data was qualitatively elicited from 90 workers in different cities of Saudi Arabia. The analysis depicts that a complex combination of the push-pull drivers such as poverty (96.66 %), un/employment (95 %), income/wage differentials (85%), family and peer pressure (80%), strong networks of relatives (76.66 %), desire to change the social status (68.33 %), turbulent environment (65 %), and religious affiliations and connectedness (95 %) provoke migration to Saudi Arabia. This study posits that the recent socioeconomic changes in Saudi Arabia, specifically the Saudization policy, quickly alter the economic migration inflow. Nevertheless, Saudi Arabia will remain the top destination for religious migration.
Analysis of the Mechanism for Determining Giving Amount of Financing for Gold Pawn Goods at Bank Syariah Mandiri Branch Office of Gorontalo
Authors: Kadim Immawan Muhajir , Ismail Ade Indrawan
Published: April 2022

This study aims to examine and analyze the method of determining the amount of the amount of the value of financing for gold pawning at Bank Syariah Mandiri Branch Office Of Gorontalo, the research method used in this study is descriptive research, namely research that presents an analysis of an object that describes systematically and accurately about a particular field. With interviews, namely a conversation, question and answer between two or more people who sit face to face is physically directed to a particular problem.This research can be concluded that Bank Syariah Mandiri pawnshop in carrying out mortgage financing uses three contracts, namely rahn and qardh, and maintenance costs using the Ijarah contract. When the process of granting financing for gold collaterals is examined the quality is by the pawnshop to determine the financing value given if the jewelry is 80% of the estimated value while if the bar is 95% of the estimated value. Assessment of collateral items with chemical analysis using tools, namely test stone, water tester, gold test needle. Evaluation by means of specific gravity using a tool namely electronic scales or analysts complete with weighing scales from 10 mgr to 500 grams, hydrotastic scales complete with weighing scales from 10 mgr to 500 grams, keler or tubes filled with clean water, and straps that are not absorb water. After the appraisal the customer will receive the amount of the fee he received based on the gold item he is carrying.
Enabling open learning and participatory parity through increased e-learning
Authors: Raban Mukhtar , Mayisela Tabisa
Published: April 2022

At the core of challenges besetting most South African Technical and Vocational Education and Training (TVET) colleges are poor leadership and management which lead to inadequate guidance and support for open learning, in general, and, more specifically, technologically innovative practices such ase-learning. E-learning contributed to improving learning flexibility for financially precarious students at Gert Sibande TVET College (GSC), who were unable to commute daily. Flexible modes of learning provision tie in with the South African Department of Higher Education and Training’s (DHET) open learning principles. Asmall-scale qualitative study was undertaken to investigate leadership approaches and practices in its promotion of open learning via the prioritisation of e-learning at GSC, identified by DHET as a forerunner of e-learning. In-depth interviews with senior management and college lecturers were conducted online. Due to the social justice intent foregrounded in DHET’s draft Open Learning Policy Framework, Nancy Fraser’s social justice framework was used to determine the extent to which the leadership processes and practices enabled socially just environments for increased e-learning initiatives. The study found that visionary and socially just leadership practices contributed to increasing e-learning implementation at the college, although certain economic, cultural and political injustices in terms of effectively enabling e-learning still prevailed. This study holds the potential to further influence the social justice imperatives of leadership of e-learning at the institution, as well as contribute to leadership for open learning initiatives in South Africa and abroad.
Access, quality and success
Authors: Dhurumraj Thasmai , Govender Shanali C.
Published: April 2022

Education in the South African context is widely promoted as a tool for achieving equity through increasing the life opportunities for those involved. The promotion of open learning as a strategy for shaping the post-school education and training sector (PSET) seeks to address the historical suffocation of the educational dreams and opportunities of black people, and contemporary poverty, lack of services and limited access to opportunities. The broad ambitions of open learning – improving access, quality and success – find expression in multiple ways in the diverse and complex PSET sector, with institutions taking different paths towards different kinds of ‘openness’. This research explores stories of openness at the University of the Free State (UFS), through tracing the history of five initiatives that seek to open up learning. We adopted an interpretivist case study approach, collecting a variety of data, including four semi-structured interviews, institutional reports, and public facing documentation. Underpinned by Fraser’s social justice framework, we ask in what ways, and to what extent, initiatives supporting access, quality and success respond to historical and contemporary social injustices, and what conditions enabled and constrained their scope and success. Through our interpretation of the data, it emerged that understandings of ‘open’ in this context are shifting and contingent, and are strongly shaped by conceptualisations of, and contextual readiness for, open learning. Many initiatives established in support of ‘opening up’ education may be described as ameliorative responses to inequalities. However, activities such as there imagining of marginalisation and pedagogy in the PSET context and the increasing recognition of the importance of leadership and governance, are working towards addressing economic, cultural and political injustices, creating more enabling conditions for transformative shifts towards opening up education.
ACIDENTE VASCULAR CEREBRAL E HIPERTENSÃO: RELAÇÃO, METAS E RECORRÊNCIA
Authors:   Setor de Cardiopatia Hipertensiva da Disciplina de Cardiologia da UNIFESP, São Paulo, SP, Brasil, Nogueira Bombig Maria Teresa , Afonso Francisco Yoná ,   Setor de Cardiopatia Hipertensiva da Disciplina de Cardiologia da UNIFESP, São Paulo, SP, Brasil, Tria Bianco Henrique ,   Disciplina de Cardiologia da UNIFESP, São Paulo, SP, Brasil
Published: April 2022

O acidente vascular cerebral (AVC) é uma das principais causas de morte, incapacidade e demência. A hipertensão arterial (HA) é o principal fator de risco para o AVC isquêmico ou hemorrágico demonstrando uma relação direta com os níveis pressóricos. O manejo da pressão arterial (PA) em adultos com AVC é complexo e desafiador devido a suas causas heterogêneas e suas consequências hemodinâmicas. Serão discutidas as recomendações de diretrizes no manuseio da HA na vigência de um AVC agudo, na prevenção e na recorrência.
BIOMARCADORES LABORATORIAIS COMO PREDITORES DE PRÉ-ECLÂMPSIA
Authors:   Faculdade de Medicina da Universidade Federal do Pará, PA, Brasil, Moraes de Souza Dilma do Socorro ,   Fundação Pública Estadual Hospital de Clínicas Gaspar Vianna, Belém, PA, Brasil., Aquino Francisco Cézar ,   Faculdade De Medicina da Universidade Federal do Pará, PA, Brasil, Souza da Luz Alan ,   Faculdade De Medicina da Universidade Federal do Pará, PA, Brasil, Moura Alves João Victor ,   Faculdade De Medicina da Universidade Federal do Pará, PA, Brasil
Published: April 2022

A pré-eclâmpsia (PE) caracteriza-se por um quadro clínico grave e multissistêmico em gestantes previamente normotensas e até o momento sem etiologia completamente esclarecida. Vários mecanismos fisiopatológicos têm sido implicados na patogênese e biomarcadores vêm sendo estudados para rastreamento de PE, porém ainda precisam ser validados para detecção precoce deste estado hipertensivo, o que complica a previsão e o tratamento da PE.
HIPERTENSÃO ARTERIAL SISTÊMICA E HIPERTROFIA VENTRICULAR ESQUERDA: CORRELAÇÃO ENTRE PARÂMETROS ELETRO- E ECOCARDIOGRÁFICOS
Authors:   Faculdade de Medicina. Setor de Ciências da Saúde. Universidade Federal do Paraná. Curitiba, PR, Brasil., Paganelli Greca de Macedo Lucas , de Souza Rodrigues Alves Rafael ,   Faculdade de Medicina. Setor de Ciências da Saúde. Universidade Federal do Paraná. Curitiba, PR, Brasil., Camarozano Ana Cristina ,   Faculdade de Medicina. Setor de Ciências da Saúde. Universidade Federal do Paraná. Curitiba, PR, Brasil., Villela Baroncini Liz Andréa ,   Faculdade de Medicina. Setor de Ciências da Saúde. Universidade Federal do Paraná. Curitiba, PR, Brasil.
Published: April 2022

Fundamento: A Hipertensão Arterial Sistêmica (HAS) acomete mais de 35% da população brasileira e tende a trazer repercussões cardíacas, entre elas a hipertrofia ventricular esquerda (HVE). O eletrocardiograma (ECG) é um exame indicado na investigação de possíveis repercussões cardiológicas em pacientes hipertensos, podendo apresentar alterações sugestivas de HVE. Objetivo: Avaliar sinais da presença de HVE em indivíduos hipertensos através do ECG e comparar com achados de ecocardiograma transtorácico (ETT). Método: Estudo transversal retrospectivo. Foram revisados prontuários eletrônicos de 159 pacientes (65,2±9,8 anos) diagnosticados com HAS, com e sem HVE ao ETT. Os resultados dos exames ECG e ETT foram comparados para avaliar a sensibilidade e especificidade do ECG em relação ao ETT. Nesta análise, foram utilizados os critérios de Sokolow-Lyon e Cornell no ECG e a relação de massa indexada do ventrículo esquerdo (VE) e espessura relativa de parede ao ETT, para avaliação do padrão geométrico do VE (PGV). Resultados: Identificamos 128 pacientes hipertensos com HVE e 31 sem alterações geométricas. A sensibilidade e especificidade para identificar HVE ao ECG foram de 31% e 90%, respectivamente, quando considerado o critério de Sokolow-Lyon conjuntamente com o critério de Cornell. Conclusão: A melhor análise de HVE ao ECG deve considerar a associação dos critérios de Sokolow-Lyon e Cornell. Apesar de apresentar uma sensibilidade menor que o ETT, o ECG possui alta especificidade e continua sendo uma alternativa importante inicial para o diagnóstico de HVE em indivíduos hipertensos.