923 research outputs found

    Strategi Pelaksanaan Program Padat Karya Pangan dalam Meningkatkan Pemberdayaan Masyarakat Desa di Kabupaten Timor Tengah Utara

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    Pelaksanaan program Padat Karya Pangan untuk dapat menjawabi permasalahan kemiskinan dan ketidakberdayaan masyarakat desa di kabupaten Timor Tengah Utara . Dengan Program Padat Karya Pangan pemerintah berusaha memenej strategi kegiatan tersebut dengan sistem kerja yang inovatif dan kreatif, komitmen dan pendekatan pemberdayaan masyarakat desa, sebab masyarakat Timor Tengah Utara memiliki banyak potensi seperti lahan yang cukup untuk mengolah kebun, didukung dengan PenyuluhPertanian Lapangan/Pendamping Lapangan yang kreatif. Walaupun demikian, ada kendala seperti masyarakat masih mempertahankan sistem kerja yang tebas bakar, kualitas pendampingan dilapangan yang belum optimal. Karena itu pemerintah perlu memenej strategi pelaksanaan program Padat karya Pangan dengan sistem kerja yang kompetitif, strategi pendekatan pemberdayaan yang intensif, membangun koordinasi yang baik diantara pelaksana program padat karya pangan dalam meningkatkan pemberdayaan masyarakat desa

    A remark on collisions of domain walls in a supersymmetric model

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    The process of collision of two parallel domain walls in a supersymmetric model is studied both in effective Lagrangian approximation and by numerical solving of the exact classical field problem. For small initial velocities we find that the walls interaction looks like elastic reflection with some delay. It is also shown that in such approximation internal parameter of the wall may be considered as a time-dependent dynamical variable.Comment: 6 pages, LaTeX, 3 figures (eps), fig. 2 correcte

    Scalable Map Information Dissemination for Connected and Automated Vehicle Systems

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    Situational awareness in connected and automated vehicle (CAV) systems becomes particularly challenging in the presence of non-line of sight objects and/or objects beyond the sensing range of local onboard sensors. Despite the fact that fully autonomous driving requires the use of multiple redundant sensor systems, primarily including camera, radar, and LiDAR, the non-line of sight object detection problem still persists due to the inherent limitations of those sensing techniques. To tackle this challenge, the inter-vehicle communication system is envisioned that allows vehicles to exchange self-status updates aiming to extend their effective field of view and thus compensate for the limitations of the vehicle tracking subsystem that relies substantially on onboard sensing devices. Tracking capability in such systems can be further improved through the cooperative sharing of locally created map data instead of transmitting only self-update messages containing core basic safety message (BSM) data. In the cooperative sharing of safety messages, it is imperative to have a scalable communication protocol to ensure optimal use of the communication channel. This dissertation contributes to the analysis of the scalability issue in vehicle-to-everything (V2X) communication and then addresses the range issue of situational awareness in CAV systems by proposing a content-adaptive V2X communication architecture. To that end, we first analyze the BSM scheduling protocol standardized in the SAE J2945/1 and present large-scale scalability results obtained from a high-fidelity simulation platform to demonstrate the protocol\u27s efficacy to address the scalability issues in V2X communication. By employing a distributed opportunistic approach, the SAE J2945/1 congestion control algorithm keeps the overall offered channel load within an optimal operating range, while meeting the minimum tracking requirements set forth by upper-layer applications. This scheduling protocol allows event-triggered and vehicle-dynamics driven message transmits that further the situational awareness in a cooperative V2X context. Presented validation results of the congestion control algorithm include position tracking errors as the performance measure, with the age of communicated information as the evaluation measure. In addition, we examine the optimality of the default settings of the congestion control parameters. Comprehensive analysis and trade-off study of the control parameters reveal some areas of improvement to further the algorithm\u27s efficacy. Motivated by the effectiveness of channel congestion control mechanism, we further investigate message content and length adaptations, together with transmit rate control. Reasonably, the content of the exchanged information has a significant impact on the map accuracy in cooperative driving systems. We investigate different content control schemes for a communication architecture aimed at map sharing and evaluate their performance in terms of position tracking error. This dissertation determines that message content should be concentrated to mapped objects that are located farther away from the sender to the edge of the local sensor range. This dissertation also finds that optimized combination of message length and transmit rate ensures the optimal channel utilization for cooperative vehicular communication, which in turn improves the situational awareness of the whole system

    Analisis Keragaman Genetik Pada Ikan Kerapu Macan (Epinephelus Fuscoguttatus) Yang Tahan Terhadap Penyakit Yang Disebabkan Bakteri Vibrio Alginolyticus

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    The research was purposed to analyse genetic similarity of tiger grouper (Epinephelus fuscoguttatus) inorder to select grouper that was resistant to Vibrio alginolyticus. In this study, fish were challenged with Vibrioalginolyticus and genetic similarity was examined by a PCR-RAPD method. Eight RAPD primers were used forPCR-RAPD analysis. The results showed that only three primers of RAPD primer (YNZ-22, UBC-456, danUBC-457) generated high number of RAPD fragments. The resistant group of tiger groupers generated higherpolymorph RAPD fragments than the susceptible groups. RAPD primer YNZ-22 and UBC-457 generated 82 %and 71 % of RAPD polymorph fragments from resistant group of fish and 71% and 60 % from susceptiblegroups, respectively. Primer YNZ-22 is a best genetic marker to analyse genetic similarity of tiger groupersproduced specific marker ranging from 1,2-2,0 kb. Genetic distances between the population of resistant fishand population of susceptible fish was 0.5091 and between individual of the resistant fish and susceptible fishwas 0.7032
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