Hasil untuk "Recreation leadership. Administration of recreation services"

Shahaf Donio, Eran Toch

While local governments have invested heavily in smart city infrastructure, significant disparities in adopting these services remain in urban areas. The success of many user-facing smart city technologies requires understanding barriers to adoption, including persistent inequalities in urban areas. An analysis of a random sample telephone survey (n=489) in four neighborhoods of Tel Aviv merged with digital municipal services usage data found that neighborhood residency influences the reasons why residents adopt resident-facing smart city services, as well as individual-level factors. Structured Equation Modeling shows that neighborhood residency is related to digital proficiency and privacy perceptions beyond demographic factors and that those influence the adoption of smart-city services. We summarize the paper by discussing why and how place effects must be considered in further research in smart cities and the study and mitigation of digital inequality.

Anders Sundelin, Javier Gonzalez-Huerta, Krzysztof Wnuk

Public cloud services are integral to modern software development, offering scalability and flexibility to organizations. Based on customer requests, a large product development organization considered migrating the microservice-based product deployments of a large customer to a public cloud provider. We conducted an exploratory single-case study, utilizing quantitative and qualitative data analysis to understand how and why deployment costs would change when transitioning the product from a private to a public cloud environment while preserving the software architecture. We also isolated the major factors driving the changes in deployment costs. We found that switching to the customer-chosen public cloud provider would increase costs by up to 50\%, even when sharing some resources between deployments, and limiting the use of expensive cloud services such as security log analyzers. A large part of the cost was related to the sizing and license costs of the existing relational database, which was running on Virtual Machines in the cloud. We also found that existing system integrators, using the product via its API, were likely to use the product inefficiently, in many cases causing at least 10\% more load to the system than needed. From a deployment cost perspective, successful migration to a public cloud requires considering the entire system architecture, including services like relational databases, value-added cloud services, and enabled product features. Our study highlights the importance of leveraging end-to-end usage data to assess and manage these cost drivers effectively, especially in environments with elastic costs, such as public cloud deployments.

Rana R. Abdelwareth, Elsadat Saad Soliman, Dina S. Abd Allah

Background and purpose To examine the effect of induced posterior pelvic tilt (changes in pelvic kinematics) on serratus anterior, lower trapezius, and upper trapezius electromyographic activity, and thoracic posture during arm elevation in individuals with rounded shoulder. Materials and methods Thirty healthy volunteers (26 male and 4 female participants) with rounded shoulder, their mean age 22.80±3.2, BMI 23.51± 3.9 were evaluated for both thoracic and pelvic posture using a 9-camera, 3-dimensional motion capture system (Vicon Nexus version 2, Oxford, UK), serratus anterior, lower trapezius, and upper trapezius electromyographic activity. The measurements were recorded in different six experimental conditions while inducing posterior pelvic tilt during arm elevation. For the six experimental conditions involving arm elevation, repeated measures analysis of variance within-subjects was used to examine the changes in electromyographic activities of lower trapezius, upper trapezius, and serratus anterior due to pelvic kinematics’ changes whereas paired t-tests were used to examine the changes in the thoracic posture in response to pelvic kinematics’ changes and to compare the pelvic tilt angle between the habitual relaxed position and the induced posterior tilt position.  Results Upper trapezius, serratus anterior, and lower trapezius electromyographic activity significantly increased in response (changes in pelvic kinematics) induced posterior pelvic tilt (35:40%) of the maximal posterior pelvic tilt, although there were no apparent alterations in thoracic posture. (p>0.05). Conclusion Induced posterior pelvic tilt, (35:40%) of the maximum, resulted in an increase in the electromyographic activity of serratus anterior, lower trapezius, upper trapezius, which reflects that changes in pelvic kinematic could alter scapular muscles activity, so comprehensive examination of pelvic posture is required in both preventive and treatment programs of shoulder complex injuries. Meanwhile, no significant effect was reported on thoracic posture.

Xihao Xie, Jia Zhang, Rahul Ramachandran et al.

Increasingly, more software services have been published onto the Internet, making it a big challenge to recommend services in the process of a scientific workflow composition. In this paper, a novel context-aware approach is proposed to recommending next services in a workflow development process, through learning service representation and service selection decision making behaviors from workflow provenance. Inspired by natural language sentence generation, the composition process of a scientific workflow is formalized as a step-wise procedure within the context of the goal of workflow, and the problem of next service recommendation is mapped to next word prediction. Historical service dependencies are first extracted from scientific workflow provenance to build a knowledge graph. Service sequences are then generated based on diverse composition path generation strategies. Afterwards, the generated corpus of composition paths are leveraged to study previous decision making strategies. Such a trained goal-oriented next service prediction model will be used to recommend top K candidate services during workflow composition process. Extensive experiments on a real-word repository have demonstrated the effectiveness of this approach.

Alexandra Bianca Tîrnăcop

The main focus of this study is how the use of AI technology can improve leaders' emotional intelligence (EI), such as empathy, self-awareness, and social skills. The study employs a research methodology that involves the use of a questionnaire and game-based techniques to examine the intersection of artificial intelligence (AI) and emotional intelligence (EI) in leadership. The main objective is to determine how artificial intelligence (AI) can be used to improve leaders' emotional intelligence. The findings highlight the importance of aligning artificial intelligence (AI) technology and emotional intelligence (EI) capabilities to achieve optimal leadership outcomes

Omar Daniel Santos Shingari

El turismo es una actividad social y como tal genera impactos. En algunos casos puede ser un aliado para la preservación de la cultura, pero en otros casos puede ocasionar cambios importantes en la cultura de los pueblos, sobre todo, cuando es realizado de manera no planificada. En este trabajo se describen los cambios en las expresiones culturales de la Comunidad Nativa Pampa Michi que estuvieron expuestas al turismo entre los años 1998 y 2019. El estudio es realizado desde un enfoque cualitativo y diseño narrativo; para ello, se utilizaron entrevistas semiestructuradas e historias de vida como instrumentos para la recolección de datos. De acuerdo con los resultados, las expresiones culturales de la comunidad han cambiado y ahora se muestran nuevas danzas como la pandilla o anaconda, además de nuevos diseños y colores en su vestimenta típica, y nuevos productos y materiales en su artesanía. En conclusión, las expresiones culturales de la comunidad que estuvieron expuestas a la actividad turística cambiaron desde los inicios del turismo en la localidad en 1998, hasta 2019, año del comienzo de la pandemia.

Kashif Mehmood, David Palma, Katina Kralevska

Intent-based networking (IBN) provides a promising approach for managing networks and orchestrating services in beyond 5G (B5G) deployments using modern service-based architectures. Public safety (PS) services form the basis of keeping society functional, owing to the responsiveness and availability throughout the network. The provisioning of these services requires efficient and agile network management techniques with low-overhead and embedded intelligence. IBN incorporates the service subscribers in a model-driven approach to provision different user-centric services. However, it requires domain-specific and contextual processing of intents for abstracted management of network functions. This work proposes an intent definition for PS and mission critical (MC) services in beyond B5G networks, as well as a processing and orchestration architecture on top of MC push-to-talk (PTT) use case. The simulation results show that MC PTT services adhere to the key performance indicators of access time and mouth-to-ear latency bounded by approximately 250 and 150 milliseconds, respectively, with an additional overhead experienced during the intent processing in the range of 20- 40 milliseconds. This validates the premise of IBN in providing flexible and scalable management and service orchestration solution for PS next generation networks.

Meni Orenbach, Bar Raveh, Alon Berkenstadt et al.

Applications running in Trusted Execution Environments (TEEs) commonly use untrusted external services such as host File System. Adversaries may maliciously alter the normal service behavior to trigger subtle application bugs that would have never occurred under correct service operation, causing data leaks and integrity violations. Unfortunately, existing manual protections are incomplete and ad-hoc, whereas formally-verified ones require special expertise. We introduce GateKeeper, a framework to develop mitigations and vulnerability checkers for such attacks by leveraging lightweight formal models of untrusted services. With the attack seen as a violation of a services' functional correctness, GateKeeper takes a novel approach to develop a comprehensive model of a service without requiring formal methods expertise. We harness available testing suites routinely used in service development to tighten the model to known correct service implementation. GateKeeper uses the resulting model to automatically generate (1) a correct-by-construction runtime service validator in C that is linked with a trusted application and guards each service invocation to conform to the model; and (2) a targeted model-driven vulnerability checker for analyzing black-box applications. We evaluate GateKeeper on Intel SGX enclaves. We develop comprehensive models of a POSIX file system and OS synchronization primitives while using thousands of existing test suites to tighten their models to the actual Linux implementations. We generate the validator and integrate it with Graphene-SGX, and successfully protect unmodified Memcached and SQLite with negligible overheads. The generated vulnerability checker detects novel vulnerabilities in the Graphene-SGX protection layer and production applications.

Matthew Katz, Ovidiu Cocieru, Daniel Springer et al.

The purpose of this longitudinal actor-based network study is to examine the evolution of sport fan ties and friendship ties on Division III campuses. Using two years of network data from a cohort of new students at a Division III institution, a SIENA model is developed to empirically test the co-evolution of fan ties and friendship ties. Grounded in student development, sport consumer behavior, and network theories, the overarching goal of this study is to explore the causal effect of fan ties on friendship ties among new students. To ascertain the value of Division III sports on campus, the authors explore the role of sports on campus in promoting friendships for new students based on the strong theoretical tradition from student development highlighting the salience of peer relationship in student success and retention. Accordingly, theoretical implications related to sport fan networks are considered within practical discussion of Division III sports and retention.

Muhammad Anshari

The Web technology provides healthcare providers the ability to broaden their services beyond the usual practices, and thus provides a particular advantageous environment to achieve complex e-health goals. This paper discusses how a Web 2.0 application will help healthcare provider to extend and enhance their services by involving and empowering their customers.Web 2.0 referes to the next generations of Web technology that empowers users to generate contents over Internet. The Web 2.0 also refers to the Web as a platform to perform any task online. The Web 2.0 allows customers to have greater control of information flow from interactions between healthcare providers with its customers and among customers themselves. The study employed quantitative methods to depict expectations of customers in Indonesia towards healthcare services that can offer empowerment and social media and sharing. The questionnaires were fairly distributed to the groups of healthcare staffs and customers (patients) who regularly visit healthcare centres. The survey revealed that features of Web 2.0 in e-health services such as consultation online, sharing in social networks, empowerment in detailing personal health records are highly appreciated by customers. Regardless of the limitations of the survey, the public has responded with a great support for the capabilities of Web 2.0 listed from the questionnaires. The findings provide initial ideas and recommendation for a future direction of prototype of social networks in e-health services.

Kaida Kaeval, Jörg-Peter Elbers, Klaus Grobe et al.

A spectral sweep process is introduced to discover performance issues in optical spectrum services. We detect filtering penalty, spectral ripple/tilt and channel crosstalk in field measurements, potentially leading to increased service robustness in low-margin networks.

Lukas Malburg, Patrick Klein, Ralph Bergmann

The transition to Industry 4.0 requires smart manufacturing systems that are easily configurable and provide a high level of flexibility during manufacturing in order to achieve mass customization or to support cloud manufacturing. To realize this, Cyber-Physical Systems (CPSs) combined with Artificial Intelligence (AI) methods find their way into manufacturing shop floors. For using AI methods in the context of Industry 4.0, semantic web services are indispensable to provide a reasonable abstraction of the underlying manufacturing capabilities. In this paper, we present semantic web services for AI-based research in Industry 4.0. Therefore, we developed more than 300 semantic web services for a physical simulation factory based on Web Ontology Language for Web Services (OWL-S) and Web Service Modeling Ontology (WSMO) and linked them to an already existing domain ontology for intelligent manufacturing control. Suitable for the requirements of CPS environments, our pre- and postconditions are verified in near real-time by invoking other semantic web services in contrast to complex reasoning within the knowledge base. Finally, we evaluate our implementation by executing a cyber-physical workflow composed of semantic web services using a workflow management system.

Nour Eddine Nachouane, Knidiri Aicha

Este trabajo presenta uno de los resultados obtenidos en una investigación de especialidad en turismo. Se plantea una propuesta para la valoración del patrimonio cultural de las tenerías de Dar Debbagh en Marrakech, con el fin de crear un centro de interpretación dedicado a los curtidores y al trabajo del cuero. Teniendo como base los principios de la interpretación patrimonial, analizamos los aspectos que pueden hacer de estas famosas tenerías un recurso patrimonial y una oferta turística cultural de calidad.

Vivien Kaniak, Rivanda Meira Teixeira

Os pequenos ecoempreendedores representam uma relevante parte dos empresários que atuam no setor de turismo na natureza, no espaço rural e com ecoturismo, gerando desenvolvimento econômico e social e, ao mesmo tempo, atuando na preservação do meio ambiente. Embora os estudos sobre o empreendedorismo sustentável tenham crescido nos últimos anos, constata-se que ainda são poucos os que enfocam as motivações dos ecoempreendedores que atuam nestes setores do turismo. O objetivo central desta pesquisa foi analisar as motivações de ecoempreendedores com base nas tipologias de Walley & Taylor (2002). A metodologia utilizada foi qualitativa e exploratória e a estratégia de pesquisa foi a de estudos de multicasos. Participaram do estudo cinco ecoempreendedores da região metropolitana de Curitiba-PR e o principal instrumento de coleta de evidências foi a entrevista semiestruturada. Os resultados apontam que os entrevistados possuem um forte direcionamento para a sustentabilidade, cujos valores verdes estão presentes nos seus negócios e que também direcionam as suas práticas. Além desses valores, esses ecoempreendedores iniciaram ou mantêm o negócio como forma de assegurar seu estilo de vida que envolve, entre outras coisas, uma alimentação natural, o desejo de viver longe da cidade grande e a preservação do meio ambiente.

Deval Bhamare, Mohammed Samaka, Aiman Erbad et al.

With the enhancements in the field of software-defined networking and virtualization technologies, novel networking paradigms such as network function virtualization (NFV) and the Internet of things (IoT) are rapidly gaining ground. Development of IoT as well as 5G networks and explosion in online services has resulted in an exponential growth of devices connected to the network. As a result, application service providers (ASPs) and Internet service providers (ISPs) are being confronted with the unprecedented challenge of accommodating increasing service and traffic demands from the geographically distributed users. To tackle this problem, many ASPs and ISPs, such as Netflix, Facebook, AT&T and others are increasingly adopting micro-services (MS) application architecture. Despite the success of MS in the industry, there is no specific standard or research work for service providers as guidelines, especially from the perspective of basic micro-service operations. In this work, we aim to bridge this gap between industry and academia and discuss different micro-service deployment, discovery and communication options for service providers as a means to forming complete service chains. In addition, we address the problem of scheduling micro-services across multiple clouds, including micro-clouds. We consider different user-level SLAs, such as latency and cost, while scheduling such services. We aim to reduce overall turnaround time as well as costs for the deployment of complete end-to-end service. In this work, we present a novel affinity-based fair weighted scheduling heuristic to solve this problem. We also compare the results of proposed solution with standard greedy scheduling algorithms presented in the literature and observe significant improvements.

Hamilton Pozo, Takeshy Tachizawa

This study developed a business management model to help stimulate social responsibility innovation and strengthen tourism in the city of Três Corações, Brazil. The research focused on identifying beliefs and values that work together to engender greater engagement and better social performance for companies mainly through innovation in order to strengthen regional tourism. The methodology used was grounded theory, which is a form of qualitative research that seeks to generate new theories through concepts, categories and properties. The proposed model both reflects social responsibility’s role in the analysed companies and helps to map the diverse socioeconomic sectors of these companies and the city’s tourism industry. The results provide evidence that marketing and social responsibility concerns are increasingly a strategic factor in tourism organisations.

Zh.L. Kozina, I.M. Sobko, V.O. Vilvitskii et al.

<p><em>Purpose:</em> to develop and experimentally substantiate the technique of combined development of speed-strength qualities and technical training of basketball players 12-13 years. <em>Material and methods</em>. In the experiment participated 20 basketball players from HOVUFKS number 2, which were divided into two groups - experimental and control, each of 10 people. In control group sessions were conducted according to the traditional method, and in the experimental one introduced additional exercises for jumping and technique of basketball. Pedagogical observations were conducted in the process of training sessions. The observation was conducted by the players to visualize the quality of the performance of the throwing technique, namely the definition of defects and technical errors during the ball rolling. The following tests were carried out: 1. Jump up Abalakov. 2. The player leads the ball, makes a stop on two legs and performs a jump shot. The number of hits from ten throws is fixed. 3. The player performs from the place of the throw in the jump from the sub-step. The fixed amount will hit 10 throws. In the mathematical treatment of the primary materials of this study, in addition to calculating the primary statistics, a comparative analysis of the meanings performed on the t-student test, as well as a correlation analysis was carried out. The processing of the indicators was carried out with the help of modern computer programs - "EXCEL" and "SPSS". <em>Results</em>. The method of complex development of speed-strength qualities and technical preparation of young basketball players is presented. It is shown that the applied method of training basketball players has increased the practically all indicators of testing of special physical fitness, quality of equipment for the performance of the throw. The developed technique positively influences the interconnection of the indices of jumping and accuracy of rollouts in basketball. <em>Conclusion</em>. The developed methodology is adequate for solving the tasks of the training process for basketball players and can be recommended in the wide practice of training children's basketball teams.</p>

Diana Ioncică, Maria Ioncică , Eva-Cristina Petrescu et al.

The current paper tackles the thorny issue of cultural tourism in Romania, trying to ascertain whether there is an actual chance of promoting it successfully in our country, without further damage to an already endangered national cultural patrimony. The question is whether we were facing a dilemma with little chances of being solved to our advantage – namely, if the promotion of cultural tourism would pose a threat or present an opportunity to a domain in which, unfortunately, very little has been done in recent years. The goal of the paper is twofold – it is meant, on the one hand, as a strong alarm signal, a wake-up call as to the necessity of a coherent, well-funded strategy regarding the promotion of cultural tourism in Romania, and on the other hand as a cautionary tale – one that could envisage what might happen if such a strategy were incorrectly devised and applied. Some hints in that direction are unfortunately already at hand, amply visible when considering the current situation of some essential sites to our cultural and national identity. Some of the case studies we discussed include The Danube Delta, Dacian sites, Bucovina Monasteries, or the Old Town area in our capital, Bucharest.

Miguel Ángel Troitiño Vinuesa, Manuel de la Calle Vaquero, Dr., María García Hernández, Dra.

En el año 1998 el Patronato de la Alhambra y Generalife encargó al Grupo de Investigación Turismo y Ciudades Históricas. de la Universidad Complutense de Madrid. En este artículo se exponen algunas de las líneas interpretativas que sustentan el Estudio realizado por encargo del Patronato de la Alhambra y Generalife. El primer apartado corresponde a una presentación del conjunto monumental y su entorno, el "territorio Alhambra". En segundo lugar se aborda una evaluación del modelo de planificación de esta pieza de la ciudad (la parte sustantiva del Plan Especial) así como de la gestión de la visita pública, uno de los aspectos críticos en un monumento con más de dos millones de visitantes al año. Y en tercer lugar se presentan algunas de las recomendaciones y líneas de actuación de la parte propositiva del Estudio, también centradas en los aspectos urbanísticos y de gestión de la visita.

Wagner Araújo Oliveira, Kerlei Eniele Sonaglio

O trabalho objetiva conhecer como o planejamento e a gestão do turismo no âmbito da Área de Proteção Ambiental dos Recifes de Corais (APARC) vêm sendo desenvolvido sob a ótica da inclusão social das populações tradicionais do entorno. Adotou-se a abordagem qualitativa, de caráter exploratório e descritivo. Como instrumento de coleta, realizaram-se entrevistas semiestruturados, tendo como população do estudo os atores relacionados dinâmica turística, além da apreciação de documentos oficiais e legais. O método de análise de conteúdo permitiu compreender as relações e foi baseado nas dimensões da inclusão social no turismo de Sancho & Irving (2011). Foi possível constatar que o processo de criação da APARC não foi conduzido de modo participativo e consultivo em seus processos de criação e implementação. Além disso, foi possível perceber que a inclusão social no planejamento e gestão do turismo na APARC está atrelado, exclusivamente, a capacidade da atividade em gerar emprego e renda, sobretudo com a criação de novos postos de trabalhos que o mercado turístico oferece. Nesse sentido, permite-se afirmar que a concepção desse conceito impera em uma abordagem majoritariamente econômica, marcada por um discurso reducionista.