bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH LEVEL KONSENTRAT DALAM RANSUM TERHADAP KOMPOSISI TUBUH KAMBING PERANAKAN ETAWAH
Authors: A. P. I. K. D. Yogyantara , I. W. Suarna , N. N. Suryani
Published: August 2017

Pengaruh level konsentrat dalam ransum telah diteliti untuk menghasilkan komposisi tubuh pada kambing peranakan etawah.Penelitianmenggunakanrancanganacakkelompok (RAK) dengan 4 perlakuan dan 4 kali ulangan. Keempatperlakuannyaadalah: (A) konsentrat 75% +hijauan 25%; (B) konsentrat 60% +hijauan 40%; (C): konsentrat 45% +hijauan 55%; dan (D): konsentrat 30% +hijauan 70%. Hijauan yang diberikan terdiri dari atasrumput raja 60% dangamal 40%. Peubah yang diamati adalah pertambahanbobot badan, protein tubuh, lemak tubuh, retensi protein, retensi lemak dan retensi energi. Data yang diperoleh dianalisis dengan sidik ragam, bila nilai rata-rata perlakuan berbeda nyata (P<0,05) akan dilanjutkan dengan Uji Duncan pada taraf 5%.Hasil penelitian menunjukkan bahwa pertambahan bobot badan, retensi protein, retensi lemak dan retensi energi kambing yang mendapat perlakuan A dan B nyata lebih tinggi (P<0,05) dari kambing yang mendapat perlakuan D.Berdasarkan hasil penelitian ini dapat disimpulkan bahwa peningkatan pemberian level konsentrat dalam ransum dapat meningkatkankomposisi tubuh kambing peranakan etawah.
Una aproximación al desarrollo rural, caso el cultivo de arracacha, en el departamento de Boyacá
Authors: Alvarado Gaona Alvaro Enrique , Muñoz Astrid Lorena , Adame Oscar Fernando
Published: August 2017

Al realizar una revisión, análisis e identificación de la arracacha (Arracacia xanthorrhiza Bancroft), algunos cronistas hacen referencia a aquellos alimentos y vegetales útiles, admitidos y apetecidos por los españoles o considerados alimentos asombrosos que describieron como de calidad y curiosidad exótica; en este caso inicialmente reportaron a la Arracacha esculenta, como una planta andina cultivada por los indios desde la más remota antigüedad, de la que se consume su raíz; historiadores hacen referencia a los muiscas, quienes cultivaban distintas clases de plantas, no es necesario hacer siembras propiamente dichas, se establece en huertos, en asocio; los indígenas muiscas la sembraban en lugares próximos a los de habitación y cumplieron un papel similar al quemodernamente presentan los cultivos de pancoger; tal es el caso de "las batatas" o del mismo "frijol". Esta tradición hoy en día conocida y estudiada como de economía campesina, contribuye a la seguridad alimentaria, el acceso a un alimento nutritivo y sano, este cultivo de importancia para muchas comunidades de pequeños productores de la región andina colombiana, entre ellas el departamento de Boyacá siendo el tercer productor después de Tolima y Norte de Santander. Para este trabajo de investigación, se partió de la necesidad de unificar e identificar el agroecosistema de arracacha Boyacá, a través de la aplicación de encuestas con un enfoque de investigación participativa y la observación directa. Este diagnóstico rural fue realizado con productores en los municipiosseleccionados y el Grupo de Investigación en Desarrollo y Producción Agraria Sostenible GIPSO de la Universidad Pedagógica y Tecnológica de Colombia; se describen los aspectos relevantes de este sistema de producción, a partir de la información recopilada sobre materiales cultivados, manejo agronómico y tecnologías locales de cultivo, iniciando desde el conocimiento tradicional de sus agricultores. Los resultados indicaron la existencia de más de diez materiales genéticos en Boyacá, (denominaciones locales), identificados con base en características morfológicas como forma y color de la raíz, color del follaje y el tallo. Es cultivada por pequeños agricultores en parcelas con áreas menores a 1 ha, adquiriendo a través de décadas, apreciables conocimientos en diferentes tópicos  de producción.
Análisis de posibles conflictos entre usos agrícola, rural, urbano y ambiental de los suelos
Authors: Agualimpia Yolima Del Carmen , Castro Carlos Enrique
Published: August 2017

En este artículo se expone un análisis del contraste de los resultados obtenidos en la investigación “Alternativas metodológicas para la determinación del caudal ecológico como estrategia para un desarrollo sostenible en fuentes superficiales de agua” desarrollado en el año 2008, por el grupo PROGASP de la Universidad Distrital Francisco José de Caldas y el artículo “Análisis de proyección de la demanda de agua para el uso agrícola en un sector de la sabana de Bogotá – Colombia” (Castro y Agualimpia, 2015). Mediante un análisis comparativo entre escalas se realizó la identificación de Suelos Hidro-Conductores, los cuales cumplen la función ecosistémica de permitir el flujo superficial de agua para mantener los caudales ambientales y generar un equilibrio ecológico en un sector plano de los municipios de Cota, Tabio y Tenjo. Se explora la aplicación de la norma de usos aplicada en los esquemas de ordenamiento territorial rural y urbano confrontados con dos enfoques institucionales que normativamente también deciden el uso agrícola y el ambiental.En la actualidad se toma la decisión de cambio de uso de agrícola a urbano mediante la aplicación del Decreto 3600 de 2007 del Ministerio de Ambiente y Vivienda y Desarrollo Territorial específicamente en predios que clasifican en clases agrológicas superiores a 4, y que cumplen con el servicio ecosistémico de regular las aguas subsuperficiales; al no ser explícito sobre cómo proceder con estas tierras, hay posibilidad de que en este territorio se configuren conflictos ambientales y sean extensivos a la totalidad de la Sabana de Bogotá.
Normas generales para publicación de artículos
Authors: Ingeniería y Región Revista
Published: August 2017

El Comité Editorial de la Revista Ingeniería y Región invita a profesionales, investigadores, docentes, estudiantes, administrativos y directivos de ingeniería para que presenten sus contribuciones o trabajos inéditos orientados hacia el tema general: Ingenieríay Desarrollo. Los documentos sometidos deben ser producto de una investigación, una experiencia práctica de la profesión o una revisión de un tema específico (ver Tipología) y deben encontrarse enmarcados dentro de la temática de la Ingeniería, Biotecnología y afines.
Roof Fall Cave, Cania Gorge: Site Report
Authors: Eales Tony , Westcott Catherine , Lilley Ian , Ulm Sean , Brian Deborah , Clarkson Chris
Published: August 2017

This site report presents a description of archaeological investigations undertaken at Roof Fall Cave, an occupied rockshelter and art site located at Cania Gorge, eastern Central Queensland. Excavation yielded quantities of stone artefacts, bone and charcoal, along with some freshwater mussel shell and ochre with an occupational sequence spanning from up to 18,576 cal BP to the historical period. Roof Fall Cave is currently the oldest dated site in Cania Gorge and possibly in the Central Queensland region.
Big Foot Art Site, Cania Gorge: Site Report
Authors: Westcott Catherine , Lilley Ian , Ulm Sean , Clarkson Chris , Brian Deborah
Published: August 2017

This site report presents a description of archaeological investigations undertaken at Big Foot Art Site, a large rockshelter and art site located at Cania Gorge, eastern Central Queensland. Field and laboratory methods are outlined and results presented. Excavation revealed evidence for occupation spanning from before 7,700 cal BP to at least 300 cal BP, with a significant peak in stone artefact discard between c.4,200-3,200 cal BP. Results are compared to analyses undertaken in the adjacent Central Queensland Highlands.
Mort Creek Site Complex, Curtis Coast: Site Report
Authors: Carter Melissa , Lilley Ian , Ulm Sean , Brian Deborah
Published: August 2017

This paper reports the results of excavations conducted at the Mort Creek Site Complex, located in the Rodds Peninsula Section of Eurimbula National Park on the southern Curtis Coast, Central Queensland. Cultural and natural marine shell deposits were excavated and analysed as part of an investigation of natural and cultural site formation processes in the area. Analyses (including foraminifera studies) demonstrate a complex site formation history, with interfingering of cultural and natural shell deposits (cheniers) in some areas of the site. Radiocarbon dating indicates that Aboriginal occupation of the site was initiated before 2,000 cal BP, overlapping with dates obtained for natural chenier deposits.
Состояние онкологической помощи и особенности преподавания онкологии на современном этапе
Authors: Попович А. Ю. , Богданов Б. А. , Крюков Н. В. , Башеев А. В. , Анищенко А. А.
Published: August 2017

Рак является одной из важнейших медицинских и социальных проблем, основным аспектом которой в ДНР, России и Украине остается недопустимо низкий уровень своевременной диагностики онкозаболеваний в I–II стадиях при удовлетворительной технической оснащенности медицинских учреждений.При своевременно выявленном раке в I–II хирургическое лечение в большинстве случаев приводит к полному выздоровлению. При этом экономическая нагрузка на органы здравоохранения значительно ниже.Применение методов скрининга крайне необходимо в ДНР, поскольку в настоящее время на момент установления диагноза более половины пациентов уже не подлежат радикальному лечению. В качестве методов доклинического выявления рака могут быть использованы достаточно доступные, недорогие и простые методики: эндоскопические исследования, ультразвуковое исследование, дерматоскопия, компьютерная томография, морфологическая верификация.При подготовке специалистов-онкологов и врачей других специальностей следует формировать онконастороженность при обследовании больных с различной патологией и осознание необходимости скрининга и ранней диагностики онкозаболеваний.Таким образом, существует необходимость обеспечения ранней диагностики рака с рациональным использованием технического оснащения лечебных учреждений, что обеспечивает высокие отдаленные результаты лечения.
Математические модели прогнозирования отдаленных результатов хирургического лечения рака желудка
Authors: Ладур А. И. , Заика А. Н. , Богданов Б. А. , Бондарь А. В. , Глотов А. В. , Гончаров Ю. А.
Published: August 2017

Цель работы. Изучить прогностические факторы, оценивающие влияние на результаты лечения пациентов раком желудка.Материалы и методы. Материалом для исследования послужили данные о 1435 больных раком желудка, которым была выполнена гастрэктомия в Республиканском онкологическом центре им. Г. В. Бондаря за двадцатилетний период. Для выделения факторных признаков, определяющих отдаленные результаты лечения и оценки степени их влияния на выживаемость пациентов был использован метод построения и анализа нейросетевых математических моделей. В качестве результирующего признака рассматривалась выживаемость больных после проведенного лечения (переменная Y): в случае, когда больной пережил пятилетний период Y=0 (положительный исход), в случае смерти больного в течении 5-и лет Y=1 (отрицательный исход). Анализ проводился с учетом отдаленных результатов лечения у 1000 пациентов. При построении и анализе математических моделей прогнозирования все больные случайным образом (с помощь генератора случайных чисел) были разделены в 3 множества: обучающее (которое использовалось для построения модели и включало результаты лечения 850 больных), тестовое (использовалось для предупреждения переобучения математической модели и включало 50 больных) и подтверждающее (использовалось для проверки прогностической способности математической модели на новых данных и включало 100 больных).Результаты и обсуждение. На наборе 125 факторных признаков была построена и обучена линейная нейросетевая модель прогнозирования риска для пациента не пережить 5-и летний период после проведенного лечения. После оптимизации порога принятия/отвержения, чувствительность модели, построенной на полном наборе факторных признаков, на обучающем множестве составила 69,0% (95% ДИ 65,0%–72,7%), специфичность — 68,9% (95% ДИ 63,5% –74,2%). На подтверждающем множестве чувствительность модели составила 61,2% (95% ДИ 49,1%–72,6%), специфичность — 60,6% (95% ДИ 43,0% –76,9%). После оптимизации порога принятия/отвержения модели, получено: чувствительность модели составила 65,5% (95% ДИ 61,5%–69,4%), специфичность — 64,2% (95% ДИ 58,6% — 69,5%), на подтверждающем множестве чувствительность модели составила 59,7% (95% ДИ 47,6%–71,3%), специфичность — 63,6% (95% ДИ 46,1% — 79,5%). Чувствительность и специфичность на обучающем и тестовом множестве статистически значимо не различаются (p=0,42 и p=0,90, соответственно, при сравнении по критерию χ2), что свидетельствует об адекватности построенной модели.Выводы. Таким образом, на отдаленные результаты хирургического лечения больных раком желудка влияют следующие факторы: возраст больного, категории Т, N и наличие послеоперационных осложнений.
Современные взгляды на хирургический метод лечения местнораспространенного колоректального рака с инвазией в мочевой пузырь
Authors: Башеев В. Х. , Балабан В. В. , Бондаренко Н. В. , Мутык М. Г.
Published: August 2017

В статье рассматривается современное состояние проблемы рака толстой кишки с инвазией в мочевой пузырь. Выделены два принципиально отличных метода оперативного лечения, такие как эвисцерация органов малого таза и мультивисцеральная резекция. Онкологические требования к обоим видам лечения – достижение R0 границы резекции, а также удаление опухоли единым блоком. Длительность эвисцерации органов малого таза варьирует от 3 до 8 часов, объем интраоперационной кровопотери – от 1,5 до 4,5л. Частота послеоперационных осложнений составляет от 35,0% до 69,6%. Послеоперационная летальность варьирует от 1% до 20%, местный рецидив от 14% до 67%. 5-летняя выживаемость составляет от 14% до 70%.

Средняя продолжительность комбинированной резекции толстой кишки с инвазией в мочевой пузырь 180 минут, интраоперационная кровопотеря в - 500 мл. Частота послеоперационных осложнений не превышают 31,6%. Послеоперационная летальность варьирует от 1,7% до 11,3%, частота местного рецидива - 30,1% , 5-летняя выживаемость составляет от 35,5% до 73,8%. Частота обструктивных резекций при данных оперативных вмешательствах составляет от 21,5% до 76,9%.

Проанализированные данные показывают необходимость разработки новых подходов к органсохраняющим операциям и улучшения качества и продолжительности жизни пациентов.
Breve Reflexão sobre a Possibilidade de Extensão da Plataforma Continental além das 200 Milhas Marítimas
Authors: Ferrão Marisa Caetano
Published: September 2017

Apesar de ser um conceito relativamente recente na linguagem jurídica (embora desde há muito seja objecto de estudo por parte de outras áreas do saber), a plataforma continental e o seu regime têm sido eleitos corno tema de inúmeros trabalhos por parte dos juristas. Pela riqueza dos recursos que normalmente lhe estão associados, tornou-se alvo do interesse dos Estados costeiros, facto que determinou não apenas o seu «nascimento» em termos jurídicos, como também o seu rápido florescimento. O nosso propósito neste estudo consiste em examinar a noção de plataforma continental, principalmente a possibilidade da sua extensão além das 200 milhas, assim como o papel desempenhado pela Comissão de Limites da Plataforma Continental (daqui em diante designada abreviadamente por Comissão de Limites), e demonstrar a importância da análise efectuada por um jurista numa matéria, como esta, em que se imbricam conceitos pertencentes a outras ciências, como a cartografia, a oceanografia, a geodesia, a geografia e a geologia.
Aroma volatiles of ‘Conference’ pear and their changes during regular air and controlled atmosphere storage
Authors: Saquet Adriano Arriel
Published: August 2017

The aim of this research was to investigate the aroma profile and changes of individual volatiles during regular air (RA) and controlled atmosphere (CA) storage of ‘Conference’ pear during six months at 0 °C. Gas combinations used were: RA; 0.5 kPa O2 + 0.5 kPa CO2; 1.5 kPa O2 + 1.5 kPa CO2; 0.5 kPa O2 + 6.0 kPa CO2 and 3.0 kPa O2 + 6.0 kPa CO2. The main compounds found during ripening of ‘Conference’ pear were butyl acetate (34 %), ethyl acetate (16 %), hexyl acetate (12 %), ethanol (11 %) and methyl acetate (5 %). Fruits under RA produced the highest amounts of volatiles and intermediary emissions were measured under 1.5 kPa O2 + 1.5 kPa CO2 and 3.0 kPa O2 + 6.0 kPa CO2. The storage under 0.5 kPa O2 + 0.5 kPa CO2 and 0.5 kPa O2 + 6.0 kPa CO2 induced the strongest inhibition in total aroma production. Under CA, the emission of ethyl acetate was not significantly suppressed even under 0.5 kPa O2 + 6.0 kPa CO2. Ethanol release increased during shelf-life in fruits of all storage conditions. Butyl acetate was only slightly suppressed even under 0.5 kPa O2 + 6.0 kPa CO2 and hexyl acetate, was significantly reduced only under 0.5 kPa O2 combined with 6.0 kPa CO2.
Role of women in the use and conservation of biodiversity: studies in the Nepal Himalaya
Authors: Bhattarai N.K.
Published: August 2017

Abstract on the PDF
Silviculture by rural People in the Middle Hills of Nepal
Authors: Tamrakar P.R. , Danbury D.J.
Published: August 2017

Abstract on the PDF
SimMobility Short-Term: An Integrated Microscopic Mobility Simulator
Authors: Azevedo Carlos Lima , Deshmukh Neeraj Milind , Marimuthu Balakumar , Oh Simon , Marczuk Katarzyna , Soh Harold , Basak Kakali , Toledo Tomer , Peh Li-Shiuan , Ben-Akiva Moshe E.
Published: August 2017

This paper presents the development of an integrated microscopic mobility simulator, SimMobility Short-Term (ST). The simulator is integrated because its models, inputs and outputs, simulated components, and code base are integrated within a multiscale agent- and activity-based simulation platform capable of simulating different spatiotemporal resolutions and accounting for different levels of travelers’ decision making. The simulator is microscopic because both the demand (agents and its trips) and the supply (trip realization and movements on the network) are microscopic (i.e., modeled individually). Finally, the simulator has mobility because it copes with the multimodal nature of urban networks and the need for the flexible simulation of innovative transportation services, such as on-demand and smart mobility solutions. This paper follows previous publications that describe SimMobility’s overall framework and models. SimMobility is an open-source, multiscale platform that considers land use, transportation, and mobility-sensitive behavioral models. SimMobility ST aims at simulating the high-resolution movement of agents (traffic, transit, pedestrians, and goods) and the operation of different mobility services and control and information systems. This paper presents the SimMobility ST modeling framework and system architecture and reports on its successful calibration for Singapore and its use in several scenarios of innovative mobility applications. The paper also shows how detailed performance measures from SimMobility ST can be integrated with a daily activity and mobility patterns simulator. Such integration is crucial to model accurately the effect of different technologies and service operations at the urban level, as the identity and preferences of simulated agents are maintained across temporal decision scales, ensuring the consistency and accuracy of simulated accessibility and performance measures of each scenario.
Network Flow Relations and Travel Time Reliability in a Connected Environment
Authors: Mittal Archak , Mahmassani Hani S. , Talebpour Alireza
Published: August 2017

Connected vehicle technology provides the opportunity to create a connected network of vehicles and infrastructure. In such a network, individual vehicles can communicate with each other and with the infrastructure, including a traffic management center. The effects of connectivity on reducing congestion and improving throughput and reliability have been extensively investigated at the segment (facility) level. To complement the segment-level studies and to assess the large-scale effects of connectivity, this paper presents a networkwide evaluation of the effect of connectivity on travel time reliability. This study uses a microscopic simulation framework to establish the speed–density relationships at different market penetration rates (MPRs) of connected vehicles. Calibrated speed–density relationships are then used as inputs to the mesoscopic simulation tools to simulate the networkwide effects of connectivity. The Chicago, Illinois, and Salt Lake City, Utah, networks are simulated. Numerical results from the simulations confirm that the linear relationship between distance-weighted travel time rate and standard deviation holds for both networks and is not affected by either the demand level or the MPR of connected vehicles. In addition, with an increase in the MPR of connected vehicles, the network attains a lower maximum density and gets an increased flow rate for the same density level. Highly connected environment has the potential to help a congested network to recover from a breakdown and avoid gridlock. It is shown that a connected environment can improve a system’s performance by providing increased traffic flow rate and better travel time reliability at all demand levels.
Pedestrian Crowd Dynamics Observed at Merging Sections: Impact of Designs on Movement Efficiency
Authors: Shahhoseini Zahra , Sarvi Majid , Saberi Meead , Haghani Milad
Published: August 2017

The need for reliable crowd simulation tools has necessitated an accurate understanding of human behavior and the rules that govern their movements under normal and emergency escapes. This paper investigates the dynamics of merging streams of pedestrians. In the merging sections, the interaction between pedestrians and geometric features of merging sections can significantly impede the collective motion and can increase the possibility of flow breakdown, particularly under emergency conditions. Therefore, to create safe and efficient designs, it is important to study human movement characteristics associated with these types of conflicting geometries. In this study, empirical data collected from large numbers of high-density experiments with people at different desired speed levels were used to explore the effect of different merging configurations (i.e., design and angle) on dynamics of merging crowds. For the first time, this study examined the impact of elevated speed regimes (as a behavioral proxy of emergency escapes) on the movement efficiency of crowds in merging sections with different geometric designs. In particular, this study investigated the impact of these conflicting geometric settings on the average waiting time in the system as a measure of movement efficiency. Results suggest that the experienced delay is dramatically greater in asymmetrical setups compared with the delay in symmetrical setups and that the difference is even more pronounced at elevated levels of pedestrians’ desired speed. These findings give significant insights into the implications of inefficient designs of merging sections for pedestrians’ safety, notably when quick movement of crowds is necessary (e.g., in emergencies).
Estimating the Impacts of Bus Stops and Transit Signal Priority on Intersection Operations: Queuing and Variational Theory Approach
Authors: Wu Kan , Guler S. Ilgin , Gayah Vikash V.
Published: August 2017

Transit signal priority (TSP) can be used to improve bus operations at signalized intersections, often to the detriment of general car traffic. However, the impacts of TSP treatments applied to intersections with nearby bus stop locations are currently unknown. This paper quantifies changes in intersection capacity, car delay, and bus delay when priority is provided to buses that dwell at near- or farside bus stop locations through green extension or red truncation. Variational and kinematic wave theories are used to estimate car capacity and bus delay for oversaturated traffic conditions; queuing theory is used to estimate car and bus delays for undersaturated conditions. Numerical analyses are conducted to explore the impacts on various bus stop locations and bus dwell time durations. These results illustrate clear trade-offs between reduced bus delays and increased car delays or reduced intersection capacities that can be quantified with the proposed method. The results also reveal that the effects of TSP vary dramatically with bus dwell times for a given bus stop location. The proposed method and associated results can be used to implement TSP strategies to meet the specific needs of local agencies.
Evaluation of Driver Car-Following Behavior Models for Cooperative Adaptive Cruise Control Systems
Authors: Rahman Mizanur , Chowdhury Mashrur , Dey Kakan , Islam M. Rafiul , Khan Taufiquar
Published: August 2017

A cooperative adaptive cruise control (CACC) system targeted to obtain a high level of user acceptance must replicate the driving experience in each CACC vehicle without compromising the occupant’s comfort. “User acceptance” can be defined as the safety and comfort of the occupant in the CACC vehicle in terms of acceptable vehicle dynamics (i.e., the maximum acceleration or deceleration) and string stability (i.e., the fluctuations in the vehicle’s position, speed, and acceleration). The primary objective of this study was to develop an evaluation framework for the application of a driver car-following behavior model in CACC system design to ensure user acceptance in terms of vehicle dynamics and string stability. The authors adopted two widely used driver car-following behavior models, ( a) the optimum velocity model (OVM) and ( b) the intelligent driver model (IDM), to prove the efficacy of the evaluation framework developed in this research for CACC system design. A platoon of six vehicles was simulated for three traffic flow states (uniform speed, speed with constant acceleration, and speed with constant deceleration) with different acceleration and deceleration rates. The maximum acceleration or deceleration and the sum of the squares of the errors of the follower vehicle speed were measured to evaluate user acceptance in terms of vehicle dynamics and string stability. Analysis of the simulation results revealed that the OVM performed better at modeling a CACC system than did the IDM in terms of acceptable vehicle dynamics and string stability.
Mechanics-Based Acceleration Modeling of Multilane Traffic Flow
Authors: Wang Liang , Chen Fangliang , Yin Huiming
Published: August 2017

Inspired by the similarity between vehicle interactions and particle interactions, a mechanical system with force elements is introduced to simulate a vehicle’s acceleration behavior in a multilane traffic flow. On the basis of Newton’s second law of motion, a subject vehicle’s longitudinal behavior is simulated with the interaction force induced by the neighboring vehicles and the driver’s driving preference. Five important factors—( a) subject vehicle’s speed, ( b) acceleration sensitivity, ( c) safety consideration, ( d) relative speed sensitivity, and ( e) gap-reducing desire—are considered; each is modeled by a force element. A recently developed data collection system is used to capture the testing driver’s acceleration behavior; the model parameters are calibrated with the traveler’s driving behavior. To demonstrate the present model, a microscopic simulation program was developed with MATLAB. The simulated trajectories not only describe a driver’s acceleration behavior in common scenarios but also accurately present complex, high-order behavior during multifaceted scenarios, such as lane changing or lead gap changing. The present model can be applied to single-lane and multilane car-following scenarios with the same algorithm.
Digital Narratives of Place: Learning About Neighborhood Sense of Place and Travel Through Online Responses
Authors: Sekar Ashok , Chen Roger B. , Cruzat Adrian , Nagappan Meiyappan
Published: August 2017

As the market penetration of mobile information and communication technologies continues to grow, visitor feedback, such as online reviews of locations or sites visited, will continue to grow in parallel at finer temporal and geographic scales. This growth in data opens the opportunity for travel demand analysts to assess location attractiveness on the basis of online reviews and subsequently inform destination choice models. In geography and urban planning, the construct of sense of place (SOP) has emerged as an indicator for visitor association or connection with a place or site. An opportunity exists for examining SOP through the lens of text mining (i.e., extracting information from online text reviews and forming digital narratives of place). Several websites devoted to sharing feedback on experiences and overall perceptions exist, including Yelp and TripAdvisor. With text-mining methods, previously unidentified SOP-related topics and issues may emerge from online reviews and serve as a basis for subsequent analysis. The results from this study indicate that these emerging topics or terms require more contextual information and interpretation. As a stand-alone method, text mining is insufficient for identifying SOP topics, given the complexity of dimensions that characterize SOP. In addition, the results suggest that timing and seasonality play an important role in visitors’ evaluation of a site; these factors have received less attention in the literature. With respect to text mining as a methodology to gain insights into SOP and supplement existing travel analysis, several barriers exist, including interpretation of topics from topic models. Nonetheless, these approaches are promising and require more research to guide practical implementation for inferring SOP from online text reviews and integration with existing travel analysis approaches.
Inferring Activities from Social Media Data
Authors: Chaniotakis Emmanouil , Antoniou Constantinos , Aifadopoulou Georgia , Dimitriou Loukas
Published: August 2017

Social media produce an unprecedented amount of information that can be extracted and used in transportation research, with one of the most promising areas being the inference of individuals’ activities. Whereas most studies in the literature focus on the direct use of social media data, this study presents an efficient framework that follows a user-centric approach for the inference of users’ activities from social media data. The framework was applied to data from Twitter, combined with inferred data from Foursquare that contains information about the type of location visited. The users’ data were then classified with a density-based spatial classification algorithm that allows for the definition of commonly visited locations, and the individual-based data were augmented with the known activity definition from Foursquare. On the basis of the known activities and the Twitter text, a set of classification algorithms was applied for the inference of activities. The results are discussed according to the types of activities recognized and the classification performance. The classification results allow for a wide application of the framework in the exploration of the activity space of individuals.
Personalization of Routing Services: User Classification as a Method to Overcome the Cold Start Problem for Personalized Models
Authors: Rudloff Christian , Leodolter Maximilian
Published: August 2017

Mobile technologies are improving constantly, and there are plenty of online routing services around. Although users are willing to try new services and apps, it is hard to retain them as users unless the service meets their expectations straightaway. In multimodal routing, using a generic model might not give appropriate routes to both an environmentally conscious traveler who uses mostly public transport and a car enthusiast. Following a trend in online retailing, in which personalized services are already the norm, research in the personalization of online routing services has shown promising results. However, because users tend to use a new service only a few times if the results are not satisfying right from the start, the initialization of the personalized model is of core importance. The authors propose a methodology that is based on a small initial data collection within the service and combined with two models that classify users into classes, first a latent class model and second a mixed logit approach with a prior clustering step. The authors tested the modeling approaches for their performance in the initialization stage and found that the classification approach can improve the correct detection of users’ chosen routes compared with state-of-the-art methodologies by several percentage points. Furthermore, user reactions to personalized routes included in a routing application were collected. The results show that the personalization of routes is well received by the users.
Impacts of Telecommuting on Nonmandatory Activity Participation: Role of Endogeneity
Authors: Asgari Hamidreza , Jin Xia
Published: August 2017

Telecommuting has been regarded as an alternative work arrangement that provides higher levels of resilience and flexibility for the workforce. To provide a robust estimation of telecommuting activity, it is important to understand the extent of telecommuting and the underlying factors that contribute to telecommuters’ decisions. One line of discussion in behavioral decisions (including telecommuting) is the endogeneity issue, also referred to as simultaneity in cause and effect. The question is whether certain activity travel behaviors are the causes of telecommuting adoption or telecommuters are manifesting such behaviors because they telecommute. For instance, are people traveling more or farther because of the higher spatial–temporal freedom brought by telecommuting, or are they choosing to or having to telecommute because they already have those activity arrangements (e.g., take care of kids) in place. Exploring such interrelationships between the choice to telecommute, activity travel plans, and other personal and household decisions is the major motivation for this research. Structural equation models were developed. Results showed that adding feedback effects to the full model improved the goodness of fit of the model, and this improvement is statistically significant ( P-value = .032). Furthermore, it could be inferred that a decision to participate in nonmandatory activities has significant positive impact on propensity to telecommute, and it is more in favor of a full-day telecommuting arrangement (versus a part-day arrangement). This study used the 2010–2011 regional household travel survey data from the New York metropolitan region.
The Path of Least Resistance: Identifying Supporters of Public and Active Transportation Projects
Authors: Loong Charis , van Lierop Dea , El-Geneidy Ahmed
Published: August 2017

The financing and implementation of transportation projects are more likely to be successful with the support of local communities. Hence, for cities and transportation agencies to develop strategies that will improve public acceptability and reduce resistance to funding transportation projects, it is important to understand differences in the levels of local support. This study used a factor-cluster analysis to segment a university population, to understand current levels of support toward transportation investments, and seek out important allies to endorse public and active transportation projects. The results of the study reveal five clusters of individuals with varying opinions toward transportation investments and distinct motivations. Strong advocates are the greatest allies for promoting public and active transportation investments. They support financing public and active transportation projects, and are well positioned to endorse the necessity and advantages of such investments. Highway and transit funders are motivated by their dissatisfaction with the current transportation system. Cycling advocates are valuable in publicizing the benefits of expanding the bicycle network. Infrequent commuters do not travel to the university as often as the other groups, and are supportive of transportation investments in general. Despite the overall positive opinion toward investing in public and active transportation projects, there is a minority of funding opponents who are generally against financing transportation projects. The results of this study will be helpful for policy makers intending to communicate the benefits of transportation projects to various community groups.
Changing Influence of Factors Explaining Household Car Ownership Levels in the Netherlands
Authors: Maltha Yannick , Kroesen Maarten , Van Wee Bert , van Daalen Els
Published: August 2017

To contribute to existing research on the influence of various factors on household car ownership in the Netherlands, this study addressed the question whether and to what extent the influence of economic, sociodemographic, and spatial factors on the number of cars owned by households has changed over time. There seems to be an absence of studies investigating the changing influence of these factors on car ownership in recent decades, and in the Netherlands. The study used the statistical method of ordered logistic regression on household mobility data on 162,593 households, collected by the National Traffic Survey of the Netherlands in 1987, 1991, 1995, 1999, 2003, 2010, and 2014. The results show that the influence of household income, size, composition, gender, age, education, working status, and suburbanization levels on car ownership changed substantially between 1987 and 2014. The strong influence of household income on household car ownership diminished quite remarkably between 1987 and 2014, whereas the influence of household size grew significantly during the period. The results could serve as a first step toward a predictive model that endogenously estimates household car ownership levels in the Netherlands.
The Millennium Development Goals: Achievement of Bangladesh
Authors: Islam Mohammad Anwarul
Published: August 2017

Abstract not availableKYAMC Journal Vol. 6, No.-2, Jan 2016, Page 601
Antibiotic Sensitivity Pattern of Uropathogens at Khwaja Yunus Ali Medical College Hospital
Authors: Ahmed Abdullah Akhtar , Alam Ahmed Nawsher , Fatmi Rejwana , Rahman Md Mashiur , Munia Marufa Sultana , Juyee Nusrat Akhtar
Published: August 2017

Increasing resistance among urinary tract pathogens to conventional drugs is found alarming worldwide. The aim of this study was to obtain data on susceptibility patterns of isolated uropathogens from urine samples of patients attending at Khwaja Yunus Ali Medical College Hospital, Enayetpur, Sirajgonj, Bangladesh a tertiary health care center of remote area to currently used antimicrobial agents. A total of 656 urine samples were studied of which 163 (24.8%) were culture positive. Among 163 culture positive cases all uropathogenic isolates were identified. Among the isolates, E. coli was the most predominant 116 (71.1%) followed by Pseudomonas aeruginosa 29 (17.8%). Staphylococcus saprophyticus 12 (7.4%) and Klebsiella pneumoniae 4 (2.4%) and Acenatobacter sp. 2 (1.2%). The majority of isolated E. coli were sensitive to Meropenam (58.6%) and Amikacin (57.7%) followed by gentamicin (52.6%), amoxiclav (43.1%), ciprofloxacin (42.2%). Sensitivity & resistance rate in Staphylococcus saprophyticus were same (50%) in Cephradine . Where complete (100%) resistanc e was shown to Ampicillin in Pseudomona s aeruginosa , Klebsiella pneumoniae and Acenatobacter sp. However most of isolates were poorly sensitive to ampicillin (1.7%), erythromycin (2.5%), cefuroxin (3.4%) and amoxicillin (9.5%). This area-specific monitoring studies aimed to gain knowledge about the type of pathogens responsible for UTIs and their resistance patterns may help the clinician to choose the right empirical treatment. Meropenem, amoxiclav, amikacin, gentamicin, second-generation of both cephalosporins and quinilones are found the most sensitive against the common uropathogens which might be used in the treatment of UTI.KYAMC Journal Vol. 6, No.-2, Jan 2016, Page 610-613
Evaluation of HbA1c Level and Other Risk Factors in Diabetic Retinopathy: A Study of Type 2 Diabetic Patients Attending in a Tertiary Level Hospital
Authors: Hoque Sayama , Muttalib MA , Islam Md Imtiajul , Khanam Parvin Akter , Choudhury Subhagata
Published: August 2017

Background: Retinopathy is the leading cause of blindness in persons with diabetes. Strict monitoring and maintenance of normal blood glucose specially HbA1c and prevention of different risk factors can prevent and delay the diabetic retinopathy. The purpose of the study was to explore the factors influencing or related to the development of the diabetic retinopathy with spcial concern to the HbA1c levels.Materials and Methods: We studied 400 type 2 diabetic patients in this cross-sectional study which was conducted in the out-patient department of BIRDEM hospital, Bangladesh. The randomly selected patients were evaluated for the presence of retinopathy through the review of their registered diabetic guide book. We included sociodemographic information, blood pressure, anthropometry (height, weight, BMI) and lipid profile of the patients. Glycaemic status was assessed by HbA1c (HbA1c was categorized into 3 groups) and plasma glucose levels. We used Student's t-test, Chi-square test and logistic regression analysis to determine and quantify the association of diabetic retinopathy with various risk factors specially HbA1c.Results: 400 type 2 diabetic patients (male 166 and female 234) were studied. The prevalence of retinopathy was 12.3%; male 12.7%, female 12.0%. Increasing HbA1c categories above 7.0% were significantly associated with increased prevalence of retinopathy (4.2 vs 12.3 vs 18.1%;c2 = 12.529, p < .01). Logistic regression models of univariate analysis showed that the risk of retinopathy at HbA1c categories >7.0% was (OR = 3.22; 95% CI: 1.12-9.25) and the risk was strongly increased at the HbA1c categories 8% (OR = 5.07; 95% CI: 1.90-13.50). Advanced age (OR = 2.92; 95% CI: 1.44-5.91), longer duration of diabetes (OR = 3.08; 95% CI: 1.49-6.37), presence of hypertension (OR = 2.42; 95% CI: 1.14-5.16), FBG (OR = 1.139; 95% CI: 1.036-1.251), blood glucose 2 hours ABF (OR = 1.124; 95% CI: 1.046-1.207) and SBP (OR = 1.033; 95% CI: 1.011-1.056) had significant association with retinopathy.Conclusions: HbA1c categories >7.0% is an important risk factor for the development of retinopathy. Poor glycaemic control, advanced age, longer duration of diabetes, hypertension are other significant risk factors of diabetic retinopathy.KYAMC Journal Vol. 6, No.-2, Jan 2016, Page 614-619
Non Descent Vaginal Hysterectomy: A Rational Surgical Approach
Authors: Zahan Arifa Akter , Shahnewaz Kh , Salma Ummay
Published: August 2017

Aims: To evaluate the rational approach of non-descent vaginal hysterectomy in advancing gynaecology practice.Study Design: Retrospective study and period from 1st July 2013 to 31st June 2014. Setting Kumudini Women's Medical College & Hospital, Mirzapur, Tangail.Patients: All selective patients requiring hysterectomy for benign gynecological disorders who did not have any uterine prolapse were recruited for this study. In bigger size uterus morcellation techniques like bisection, debulking, myomectomy, slicing, or combination of these were used to remove the uterus.Main outcome measures: Data regarding indication, age, parity, uterine size, estimated blood loss, length of operation, complication and hospital stay were recorded.Results: A total of 50 cases were selected for non-descent vaginal hysterectomy all of them successfully underwent non-descent vaginal hysterectomy. Commonest age group was (41-45 years) i.e. 46%. All patients were parous. Uterus size was less then 8 wks 21 cases, 8wks to 12 wks in 27 cases, more then 12 wks 02 cases. Commonest indication was DUB of uterus (44%). Mean duration of surgery was 50.5 minutes. Mean blood loss was 100ml. Blood transfusion was required in four cases. Average duration of hospital stay was 3.1 days. Complications were minimal which included UTI and Vault infection.Conclusions: NDVH is safe feasible and patient friendly. We suggest that our modern gynecologist will be more expertise and familiar to this procedure in near future.KYAMC Journal Vol. 6, No.-2, Jan 2016, Page 637-641
Ramadan and Diabetes
Authors: Hoque Md Azizul , Rahman SM Tajdit , Islam Md Daharul , Akter Nazma , Rahman Md Motlabur
Published: August 2017

During Ramadan, Muslims fast from dawn to dusk for one lunar month. Although a majority of Muslim patients with type 2 diabetes fast during the month of Ramadan, there are no accepted guidelines for its management during this period. The few studies on this subject suggest that there are important alterations in energy intake and physical activity, and that most patients change their pattern of drug intake. The objectives of this article is to assist in the task of advising diabetic patients who fast and provide them with guidelines regarding proper management of their diabetes during Ramadan.KYAMC Journal Vol. 6, No.-2, Jan 2016, Page 649-652
Learning alterity in the social economy: the case of the Local Organic Food Co-ops Network in Ontario, Canada
Authors: Sumner Jennifer , Wever Cassie
Published: August 2017

While the origins of the social economy date long before the period of industrialization or the modern state (Shragge & Fontan, 2000), it is growing in importance as we find ourselves in ‘the cancer stage of capitalism’ (McMurtry, 2013). Facing issues such as exponentially growing inequality, the demise of rural communities, an exploding obesity epidemic and jobless recoveries from repeated financial crises, more and more people are turning to the social economy for solutions to their problems (see McMurtry 2010; Mook et al. 2010). This paper reports on a pilot study that focused on the Local Organic Food Co-ops Network, created by people who oppose the industrial food system and want to specialize in local, organic food. Adopting a political-economy lens to understand this opposition through the words of participants, the study employed semi-structured interviews to explore the learning dimensions of this social economy organization. The study found that respondents participated in social learning and learned alterity in the social economy. The paper concludes that social economy organizations need to prioritize social over economic values, and the potential for change associated with social learning is key to making this choice.
Comparative Study of Type-2 Fuzzy Particle Swarm, Bee Colony and Bat Algorithms in Optimization of Fuzzy Controllers
Authors: Olivas Frumen , Amador-Angulo Leticia , Perez Jonathan , Caraveo Camilo , Valdez Fevrier , Castillo Oscar
Published: August 2017

In this paper, a comparison among Particle swarm optimization (PSO), Bee Colony Optimization (BCO) and the Bat Algorithm (BA) is presented. In addition, a modification to the main parameters of each algorithm through an interval type-2 fuzzy logic system is presented. The main aim of using interval type-2 fuzzy systems is providing dynamic parameter adaptation to the algorithms. These algorithms (original and modified versions) are compared with the design of fuzzy systems used for controlling the trajectory of an autonomous mobile robot. Simulation results reveal that PSO algorithm outperforms the results of the BCO and BA algorithms.