158 research outputs found
PENGEMBANGAN MEDIA FLASHCARD UNTUK MENINGKATKAN KETERAMPILAN MENULIS PUISI SISWA KELAS VII SMPN 10 SOKAN KALIMANTAN BARAT
Keterampilan menulis puisi adalah keterampilan sastra yang harus dicapai siswa dengan tekun berlatih sehingga dapat mengubah ide dan gagasannya menjadi karya puisi. Latar belakang penelitian ini adalah rendahnya keterampilan menulis puisi siswa Kelas Siswa VII SMPN 10 Sokan Kalimantan Barat. Penelitian ini bertujuan untuk mengembangkan, serta menguji kelayakan dan keefektifan media “Flashcard untuk Menulis Puisi”. Jenis penelitian adalah Penelitian dan Pengembangan dengan model ADDIE. Prosedur penelitian yaitu analyze, design, development, implementation dan evaluation. Subjek penelitian adalah 20 siswa kelas Siswa VII SMPN 10 Sokan Kalimantan Barat. Pengumpulan data menggunakan observasi, tes, wawancara, angket dan dokumen. Teknik analisis data menggunakan analisis data produk, analisis data awal, uji hipotesis, dan uji n-gain. Hasil penelitian menunjukkan media “Flashcard untuk Menulis Puisi ”sangat layak digunakan dengan presentase rata-rata penilaian ahli materi 86,63% dan ahli media 90,21%. Terdapat peningkatan rata-rata nilai siswa sebanyak 72%, hasil perhitungan N-Gain sebesar 0,559107 dengan kriteria sedang, dan hasil uji perbedaan rata-rata menunjukkan bahwa data sig (2-tailed) 0,000 < 0,05, sehingga disimpulkan bahwa rata-rata nilai antara pretest dan posttest mengalami perubahan signifikan. Simpulan penelitian: media “Flashcard untuk Menulis Puisi” layak dan efektif digunakan dalam kegiatan pembelajaran materi puisi oleh Siswa VII SMPN 10 Sokan Kalimantan Barat. Saran penelitian selanjutnya: lebih teliti dalam perencanaan pengembangan media flashcard, sebaiknya dikembangkan sesuai kebutuhan serta karakteristik siswa
An Approach to Argumentation Schemes that Appeal to Expert Opinion
Argumentation is a form of reasoning that deeply resembles the human mechanism for commonsense reasoning. An argumentation scheme is a representational tool for modeling common patterns of reasoning; in particular, it displays the form of an argument by showing how the argument is built using the inferential structures commonly used in everyday discourse. Argument schemes are very useful in contexts such as legal argumentation, scientific argumentation, and especially in Artificial Intelligence applications. One type of argumentation scheme corresponds to appeal to Expert Opinion or Position-to-Know argumentation. Position-to-know reasoning is typically used in an information seeking type of dialogue where one has to depend on a source. Most of such argumentation frameworks are based on Dung’s seminal work characterizing Abstract Argumentation Frameworks. In this work, we introduce a novel framework, called Expert Argumentation Framework (EAF), extending AF with the capability of modeling the quality of expert associated with the arguments that were proposed.La argumentación es una forma de razonamiento que se relaciona profundamente con el mecanismo humano de razonamiento basado en el sentido común. Un esquema de argumentación es una herramienta de representación para modelar patrones comunes de razonamiento. En particular, estos esquemas muestran la forma de un argumento, es decir, cómo se construye el argumento utilizando estructuras inferenciales comúnmente utilizadas en el discurso cotidiano. Los esquemas de argumentación son muy utilizados en contextos como la argumentación legal, argumentación científica y, especialmente, en aplicaciones de Inteligencia Artificial. Un tipo de esquema de argumentación es aquel que apela a la Opinión Experta o Posición de Conocer. El razonamiento basado en la Posición de Conocer es típicamente utilizado en aquellos diálogos de búsqueda de información donde se depende de una fuente calificada. La mayoría de los marcos de argumentación se basan en el trabajo seminal de Dung que caracteriza un Marco de Argumentación Abstracto (MA). En este trabajo, introduciremos un nuevo marco, llamado Marco de Argumentación Experta (MAE), extendiendo el MA con la capacidad de modelar la calidad del experto asociada con los argumentos que este propone.Fil: Budan, Paola D. . Universidad Nacional del Sur; Argentina. Universidad Nacional de Santiago del Estero; ArgentinaFil: Budan, Maximiliano Celmo David. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur; Argentina. Universidad Nacional de Santiago del Estero; ArgentinaFil: Simari, Guillermo Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur; Argentin
ENGINEERING SUPERHYDROPHOBIC BEHAVIOR IN 3D-PRINTED STAINLESS STEEL COMPOSITES
This thesis discusses the wettability of 316L stainless steel composites using carbon nanotubes and manufactured via a selective laser melting. Superhydrophobicity is created through the combination of low surface tension and surface roughness at a micro to nanoscopic scale, and it has become a topic of vigorous study over the past 20 years. Previous studies have relied primarily on processes such as etching and nanomaterial arrays to generate surface roughness, followed by the application of harmful chemicals (e.g., fluorosilanes) to modify surface energy and achieve superhydrophobicity. Stainless steel powder (316L) was combined with carbon nanotubes, which demonstrate near-hydrophobic properties, via high energy ball milling in attempts to reduce the materials surface energy. An ideal pillared surface geometry based on natural superhydrophobicity was produced through additive manufacturing using multiple concentrations of carbon nanotube composites. Through material characterization including sessile water drop contact angle measurements, optical profilometry, and microscopy, it was determined that all samples remained hydrophilic in nature due to insufficient surface energy modification using carbon nanotubes. However, trends indicate that further increasing CNT concentration, controlling printing laser energy density, and slight model modifications could demonstrate hydrophobic effects.Ensign, United States NavyApproved for public release. Distribution is unlimited
Leadership Practice of Elementary school Heads as Determinants of teachers’ Morale in Davao Region ,Philippines
Determining the leadership practice and work commitment of elementary school heads as determinants of teachers’ morale in Davao Region is the main objective of the study. There were 400 elementary school teachers chosen as respondents employing stratified random sampling technique. The study utilized non-experimental study using descriptive correlational technique. Mean, Pearson r, Multiple regression were used in the treatment of the data. Findings revealed that the level of leadership practice, work commitment, and teachers’ morale yielded very high results. Leadership practice and work commitment of school heads showed significant relationships with teacher’s morale. The combined and singular influence of leadership practice of school heads and working commitment towards teachers’ morale provided significant results. Keywords: leadership practice, work commitment, elementary school heads, determinants, teachers’ morale, Davao region, educational management, Philippine
CRITERIA FOR HARVESTING PLUMS AT THE OPTIMUM MATURITY FOR ROMANIAN VARIETIES OF THE FRESH FRUIT MARKET
Plum breeders and growers from Romania want to improve status of the plums for fresh consumption. Plum fruit quality depends on physical and chemical properties (shape, size, skin colour, bloom, taste and flavor, fruit soluble solids content and acidity, stone adherence), but, also, the optimum time to harvesting for the fresh fruit market. Optimum fruit maturity of plum varieties can be achieved by the fruit colour and firmness. For this reason we have studied seven new Romanian plum varieties (‘Alina’, ‘Carpatin’, ‘Roman’, ‘Pitestean’, ‘Sarmatic’, ‘Tita’ and ‘Tuleu timpuriu’), cultivated in field trial of the Genetics and Breeding laboratory in Research Institute for Fruit Growing Pitesti. Fruit skin color was measured by Konica Minolta chromameter model CR 400 based on the Hunter L, a, b-system. Fruit firmness was measured with non-destructive penetrometer Qualitest HPE equipped with a plunger of diameter 0.10 cm2. In addition to these two criteria were also measured others, such as: fruit size, fruit color and fruit soluble solids content.For statistical analyses DUNCAN test was used. Fruit colour ranged from red (Roman) to dark blue (Piteștean). According to the colour chart CTIFL, plum varieties were classified as group 4 - light blue (‘Alina’, ‘Carpatin’, ‘Roman’, ‘Tuleu timpuriu’) 5 - blue (‘Sarmatic’ and ‘Tita’) and 6 - dark blue (‘Piteștean’). After firmness, varieties were grouped into two groups: group 2 - beginning of maturation (‘Carpatin’, ‘Roman’, ‘Sarmatic’, ‘Tita’, ‘Tuleu timpuriu’) and group 3 - optimal harvest time (‘Alina’ and ‘Piteștean’). Regarding the other criteria, like fruit weight and soluble solids content, it can be said that all studied varieties are suitable for fresh consumptio
Strength in coalitions: Community detection through argument similarity
We present a novel argumentation-based method for finding and analyzing communities in social media on the Web, where a community is regarded as a set of supported opinions that might be in conflict. Based on their stance, we identify argumentative coalitions to define them; then, we apply a similarity-based evaluation method over the set of arguments in the coalition to determine the level of cohesion inherent to each community, classifying them appropriately. Introducing conflict points and attacks between coalitions based on argumentative (dis)similarities to model the interaction between communities leads to considering a meta-argumentation framework where the set of coalitions plays the role of the set of arguments and where the attack relation between the coalitions is assigned a particular strength which is inherited from the arguments belonging to the coalition. Various semantics are introduced to consider attacks' strength to particularize the effect of the new perspective. Finally, we analyze a case study where all the elements of the formal construction of the formalism are exercised.Fil: Budan, Paola Daniela. Universidad Nacional de Santiago del Estero. Facultad de Cs.exactas y Tecnologías. Departamento de Informatica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Ciencias e Ingeniería de la Computación. Universidad Nacional del Sur. Departamento de Ciencias e Ingeniería de la Computación. Instituto de Ciencias e Ingeniería de la Computación; Argentina. Universidad Nacional de Santiago del Estero. Facultad de Cs.exactas y Tecnologias. Instituto de Investigacion En Informatica y Sistemas de Informacion.; ArgentinaFil: Escañuela Gonzalez, Melisa Gisselle. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Exactas y Tecnologías. Departamento de Matemática; Argentina. Universidad Nacional de Santiago del Estero. Facultad de Cs.exactas y Tecnologias. Instituto de Investigacion En Informatica y Sistemas de Informacion.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Budan, Maximiliano Celmo David. Universidad Nacional de Santiago del Estero. Facultad de Cs.exactas y Tecnologias. Instituto de Investigacion En Informatica y Sistemas de Informacion.; Argentina. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Exactas y Tecnologías. Departamento de Matemática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Martinez, Maria Vanina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Simari, Guillermo Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Ciencias e Ingeniería de la Computación. Universidad Nacional del Sur. Departamento de Ciencias e Ingeniería de la Computación. Instituto de Ciencias e Ingeniería de la Computación; Argentina. Universidad Nacional del Sur. Departamento de Ciencias e Ingeniería de la Computación; Argentin
Modeling time and valuation in structured argumentation frameworks
Temporal Argumentation Frameworks (TAF) represent a recent extension of Dung's abstract argumentation frameworks that consider the temporal availability of arguments. In a TAF, arguments are valid during specific time intervals, called availability intervals, while the attack relation of the framework remains static and permanent in time; thus, in general, when identifying the set of acceptable arguments, the outcome associated with a TAF will vary in time. We introduce an extension of TAF, called Extended Temporal Argumentation Framework (E-TAF), adding the capability of modeling the temporal availability of attacks among arguments, thus modeling special features of arguments varying over time and the possibility that attacks are only available in a given time interval. E-TAF will be enriched by considering Structured Abstract Argumentation, using Dynamic Argumentation Frameworks. The resulting framework, E-TAF∗, provides a suitable model for different time-dependent issues satisfying properties and equivalence results that permit to contrast the expressivity of E-TAF and E-TAF∗ with argumentation based on abstract frameworks. Thus, the main contribution here is to provide an enhanced framework for modeling special features of argumentation varying over time, which are relevant in many real-world situations. The proposal aims at advancing in the integration of time and valuation in the context of argumentation systems as well.Fil: Budan, Maximiliano Celmo David. Universidad Nacional del Sur. Departamento de Ciencias e Ingeniería de la Computación; Argentina. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Exactas y Tecnologías. Departamento de Matemática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; ArgentinaFil: Gomez Lucero, Mauro Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ciencias e Ingeniería de la Computación; ArgentinaFil: Chesñevar, Carlos Iván. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Exactas y Tecnologías. Departamento de Matemática; Argentina. Universidad Nacional del Sur. Departamento de Ciencias e Ingeniería de la Computación; ArgentinaFil: Simari, Guillermo Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ciencias e Ingeniería de la Computación; Argentin
The impasse of urban to rural migration: re-enchantment and disillusionment in Şirince
Şirince is a small touristic village situated on the hills of Selçuk province of İzmir. In the last 30 years, especially with the boom of tourism, a number of people from metropolitan cities migrated to the village. Through ethnographic fieldwork with ex-urbanites in Şirince, this thesis presents a critical exploration of the urban to rural migrants in Şirince from various angles. In order to understand the dynamics of relations among people in Şirince, I draw from the theoretical writings on place identity and locality and argue that Şirince is a place of non-identity. I then explore that the urbanites‟ purposes of re-enchanting with the world by migrating to village and their romantic imagination of the village life created an ambivalent situation when they faced the “reality.” I claim that on the one hand the inevitable transformation that Şirince has undergone in the last 30 years contradicts with the purposes of the informants‟ coming to the village: running away from the materiality of the urban and filling the void of spirituality. On the other hand, their gaze on and approach to the village, imbued with Occidentalist imaginations, make them undertake an attempt to modernize Şirince in return for material gains from the tourism industry. Finally, I propose that the failure of top-to-down modernization of the village and the inability to re-enchant with the world has created an impasse; an impasse the ex-urbanites defined through the metaphors of imprisonment: not the city, not the village, but where
Connected and Automated Vehicle Enabled Traffic Intersection Control with Reinforcement Learning
Recent advancements in vehicle automation have led to a proliferation of studies in traffic control strategies for the next generation of land vehicles. Current traffic signal based intersection control methods have significant limitations on dealing with rapidly evolving mobility, connectivity and social challenges. Figures for Europe over the period 2007-16 show that 20% of road accidents that have fatalities occur at intersections. Connected and Automated Mobility (CAM) presents a new paradigm for the integration of radically different traffic control methods into cities and towns for increased travel time efficiency and safety. Vehicle-to-Everything (V2X) connectivity between Intelligent Transportation System (ITS) users will make a significant contribution to transforming the current signalised traffic control systems into a more cooperative and reactive control system. This research work proposes a disruptive unsignalised traffic control method using a Reinforcement Learning (RL) algorithm to determine vehicle priorities at intersections and to schedule their crossing with the objectives of reducing congestion and increasing safety. Unlike heuristic rule-based methods, RL agents can learn the complex non-linear relationship between the elements that play a key role in traffic flow, from which an optimal control policy can be obtained. This work also focuses on the data requirements that inform Vehicle-to-Infrastructure (V2I) communication needs of such a system. The proposed traffic control method has been validated on a state-of-the-art simulation tool and a comparison of results with a traditional signalised control method indicated an up to 84% and 41% improvement in terms of reducing vehicle delay times and reducing fuel consumption respectively. In addition to computer simulations, practical experiments have also been conducted on a scaled road network with a single intersection and multiple scaled Connected and Automated Vehicles (CAV) to further validate the proposed control system in a representative but cost-effective setup. A strong correlation has been found between the computer simulation and practical experiment results. The outcome of this research work provides important insights into enabling cooperation between vehicles and traffic infrastructure via V2I communications, and integration of RL algorithms into a safety-critical control system
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