97 research outputs found
O uso de cenários em jogos digitais para a promoção de destinos turísticos brasileiros
Monografia (graduação) - Universidade Federal do Paraná, Setor de Litoral, Curso de Graduação em Gestão em TurismoInclui referênciasA indústria de jogos vem movimentando uma parcela significativa da economia mundial devido a grande expansão da tecnologia e do aumento no uso de dispositivos móveis, o que vem facilitando o desenvolvimento e a comercialização de jogos cada vez mais interativos e dinâmicos. Com base nisto e levando em consideração o uso cada vez mais recorrente dos jogos e de suas aplicações nos mais diversos setores da economia, em busca de resultados mais eficazes, este trabalho apresenta uma análise sobre o uso de cenários em jogos digitais para a promoção de destinos turísticos brasileiros, com o objetivo principal de avaliar a promoção de destinos turísticos nos jogos digitais, sendo utilizado como objetos de estudo, os jogos Street Fighter V e Counter Strike 1.6. Tendo como parte metodológica uma pesquisa de classe quantitativa-qualitativa, de caráter exploratório e descritivo, com base no levantamento de dados de base teórica e na construção de dois (2) questionários referentes ao perfil dos jogadores e a ambientação de dois jogos em destinos brasileiros. Conforme os resultados obtidos, nota-se que o perfil dos respondentes é predominantemente jovem, do sexo masculino e de bom poder aquisitivo, estes consideram os cenários de jogos como elementos importantes na construção do ambiente de jogo e avaliam os cenários brasileiros representados apresentam características com certo grau pejorativo, que não valoriza toda a cultura do país e que abrange apenas as cidades de São Paulo, Rio de Janeiro e a Amazônia. A maioria também sente vontade de conhecer ou visitar os locais representados e considera a possibilidade de interação nos jogos como elemento principal para a permanência no jogo. Como estudos futuros, sugere-se que haja abordagens mais amplas com relação a ambientação de destinos turísticos nos cenários de jogos digitais de forma a criar ou possibilitar o desenvolvimento de uma plataforma ou delineamento de jogo que facilite e estimule a promoção turística de destinos brasileiros, principalmente no Litoral do Paran
Consuming Rural Territories through Food – A Segmentation Analysis Based on the Food Choices of Urban Specialty Stores’ Customers
The increasing interest of consumers in rural provenance food products is known to meet concerns regarding authenticity, health, safety, and sustain-ability and to be based on knowledge and familiarity. Based on the results of a survey to 1553 customers of 24 urban specialty shops, located in three Portuguese cities, this study aims at identifying different segments of con-sumers of rural provenance foods according to the criteria they value when acquiring and consuming those products. From a hierarchical cluster analysis based on shopping preferences, three clusters were identified: The Influenced, choosing the products mainly by recommendation; The Provenance Seekers, privileging provenance and related qualities; and The All- embracers, considering a multiplicity of criteria when shopping. These clus-ters differ in terms of socio-demographic profiles, products bought, con-sumption behavior, familiarity with rural areas, and images of food products and territories of provenance. Results show the mutual influence of these dimensions on food preferences.info:eu-repo/semantics/publishedVersio
A typology of urban speciality shops selling rural provenance food products – a contribution from Portugal
Abstract
Purpose
The purpose of this paper is to explore and typify the characteristics and diverse features of urban speciality stores selling rural provenance food, taking the case of three cities in Portugal.
Design/methodology/approach
The study was based on hierarchical cluster analysis, performed upon data collected from a survey to 113 shops, located in Aveiro (n = 15), Lisbon (n = 56) and Porto (n = 42).
Findings
The study identified three clusters of shops according to the type of rural provenance products sold, services provided and clientele characteristics: the wine focused, the rural provenance focused and the generalist. The study confirms that in Portugal, small food retail outlets, with different rural provenance patterns and degrees of specialization have considerably grown in large cities over the last decade.
Research limitations/implications
The study contributes to typifying urban speciality food stores selling rural provenance products and to addressing critical research gaps on this topic. The study highlights the dynamism of small food retail outlets and their significance, mediating and responding to changing patterns of food consumption in urban spaces.
Originality/value
This study contributes to a better understanding and characterization of food speciality shops in urban settings and their links with rural territories of provenance, an under-researched topic on the food retail literature.info:eu-repo/semantics/publishedVersio
A Methodological Approach for Testing the Viability of Seeds Stored in Short-Term Seed Banks
[EN] Efficient management of `active¿ seed banks ¿ specifically aimed at the short-term storage at room temperature of seeds to be used locally in conservation/regeneration programmes of endemic or endangered plant species ¿ requires establishing the optimal storage time to maintain high seed viability, for each stored species. In this work, germination of seeds of the halophytes Thalictrum maritimum, Centaurea dracunculifolia and Linum maritimum has been investigated. The seeds had been stored for different periods of time in the seed bank of `La Albufera¿ Natural Park (Valencia, SE Spain) after collection in salt marshes of the Park, where small populations of the three species are present. Seeds of T. maritimum and C. dracunculifolia have a relatively short period of viability at room temperature, and should not be stored for more than three years. On the other hand, L. maritimum seeds maintain a high germination percentage and can be kept at room temperature for up to 10 years. T. maritimum seeds, in contrast to those of the other two species, did not germinate in in vitro tests nor when sown directly on a standard substrate, unless a pre-treatment of the seeds was applied, mechanical scarification being the most effective. These results will help to improve the management of the seed bank, to generate more efficiently new plants for reintroduction and reinforcement of populations of these species in their natural ecosystems within the Natural ParkForte Gil, J.; Yabor, L.; Bellido Nadal, A.; Collado Cerveró, F.; Ferrer-Gallego, P.; Vicente, O.; Boscaiu, M. (2017). A Methodological Approach for Testing the Viability of Seeds Stored in Short-Term Seed Banks. Notulae Scientia Biologicae. 9(4):563-570. doi:10.15835/nsb9410173S5635709
Dos Campos para as Cidades: o papel dos produtos agroalimentares no desenvolvimento rural e nas relações rural-urbano em Portugal
Sem resumo disponível.publishe
I.S.Mu.L.T. Achilles Tendon Ruptures Guidelines
This work provides easily accessible guidelines for the diagnosis, treatment and rehabilitation of Achilles tendon ruptures. These guidelines could be considered as recommendations for good clinical practice developed through a process of systematic review of the literature and expert opinion, to improve the quality of care for the individual patient and rationalize the use of resources. This work is divided into two sessions: 1) questions about hot topics; 2) answers to the questions following Evidence Based Medicine principles. Despite the frequency of the pathology andthe high level of satisfaction achieved in treatment of Achilles tendon ruptures, a global consensus is lacking. In fact, there is not a uniform treatment and rehabilitation protocol used for Achilles tendon ruptures
Assessing the carcinogenic potential of low-dose exposures to chemical mixtures in the environment: the challenge ahead.
Lifestyle factors are responsible for a considerable portion of cancer incidence worldwide, but credible estimates from the World Health Organization and the International Agency for Research on Cancer (IARC) suggest that the fraction of cancers attributable to toxic environmental exposures is between 7% and 19%. To explore the hypothesis that low-dose exposures to mixtures of chemicals in the environment may be combining to contribute to environmental carcinogenesis, we reviewed 11 hallmark phenotypes of cancer, multiple priority target sites for disruption in each area and prototypical chemical disruptors for all targets, this included dose-response characterizations, evidence of low-dose effects and cross-hallmark effects for all targets and chemicals. In total, 85 examples of chemicals were reviewed for actions on key pathways/mechanisms related to carcinogenesis. Only 15% (13/85) were found to have evidence of a dose-response threshold, whereas 59% (50/85) exerted low-dose effects. No dose-response information was found for the remaining 26% (22/85). Our analysis suggests that the cumulative effects of individual (non-carcinogenic) chemicals acting on different pathways, and a variety of related systems, organs, tissues and cells could plausibly conspire to produce carcinogenic synergies. Additional basic research on carcinogenesis and research focused on low-dose effects of chemical mixtures needs to be rigorously pursued before the merits of this hypothesis can be further advanced. However, the structure of the World Health Organization International Programme on Chemical Safety 'Mode of Action' framework should be revisited as it has inherent weaknesses that are not fully aligned with our current understanding of cancer biology
The effect of environmental chemicals on the tumor microenvironment
Potentially carcinogenic compounds may cause cancer through direct DNA damage or through indirect cellular or physiological effects. To study possible carcinogens, the fields of endocrinology, genetics, epigenetics, medicine, environmental health, toxicology, pharmacology and oncology must be considered. Disruptive chemicals may also contribute to multiple stages of tumor development through effects on the tumor microenvironment. In turn, the tumor microenvironment consists of a complex interaction among blood vessels that feed the tumor, the extracellular matrix that provides structural and biochemical support, signaling molecules that send messages and soluble factors such as cytokines. The tumor microenvironment also consists of many host cellular effectors including multipotent stromal cells/mesenchymal stem cells, fibroblasts, endothelial cell precursors, antigen-presenting cells, lymphocytes and innate immune cells. Carcinogens can influence the tumor microenvironment through effects on epithelial cells, the most common origin of cancer, as well as on stromal cells, extracellular matrix components and immune cells. Here, we review how environmental exposures can perturb the tumor microenvironment. We suggest a role for disrupting chemicals such as nickel chloride, Bisphenol A, butyltins, methylmercury and paraquat as well as more traditional carcinogens, such as radiation, and pharmaceuticals, such as diabetes medications, in the disruption of the tumor microenvironment. Further studies interrogating the role of chemicals and their mixtures in dose-dependent effects on the tumor microenvironment could have important general mechanistic implications for the etiology and prevention of tumorigenesis
Causes of genome instability: the effect of low dose chemical exposures in modern society.
Genome instability is a prerequisite for the development of cancer. It occurs when genome maintenance systems fail to safeguard the genome's integrity, whether as a consequence of inherited defects or induced via exposure to environmental agents (chemicals, biological agents and radiation). Thus, genome instability can be defined as an enhanced tendency for the genome to acquire mutations; ranging from changes to the nucleotide sequence to chromosomal gain, rearrangements or loss. This review raises the hypothesis that in addition to known human carcinogens, exposure to low dose of other chemicals present in our modern society could contribute to carcinogenesis by indirectly affecting genome stability. The selected chemicals with their mechanisms of action proposed to indirectly contribute to genome instability are: heavy metals (DNA repair, epigenetic modification, DNA damage signaling, telomere length), acrylamide (DNA repair, chromosome segregation), bisphenol A (epigenetic modification, DNA damage signaling, mitochondrial function, chromosome segregation), benomyl (chromosome segregation), quinones (epigenetic modification) and nano-sized particles (epigenetic pathways, mitochondrial function, chromosome segregation, telomere length). The purpose of this review is to describe the crucial aspects of genome instability, to outline the ways in which environmental chemicals can affect this cancer hallmark and to identify candidate chemicals for further study. The overall aim is to make scientists aware of the increasing need to unravel the underlying mechanisms via which chemicals at low doses can induce genome instability and thus promote carcinogenesis
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Environmental immune disruptors, inflammation and cancer risk
An emerging area in environmental toxicology is the role that chemicals and chemical mixtures have on the cells of the human immune system. This is an important area of research that has been most widely pursued in relation to autoimmune diseases and allergy/asthma as opposed to cancer causation. This is despite the well-recognized role that innate and adaptive immunity play as essential factors in tumorigenesis. Here, we review the role that the innate immune cells of inflammatory responses play in tumorigenesis. Focus is placed on the molecules and pathways that have been mechanistically linked with tumor-associated inflammation. Within the context of chemically induced disturbances in immune function as co-factors in carcinogenesis, the evidence linking environmental toxicant exposures with perturbation in the balance between pro- and anti-inflammatory responses is reviewed. Reported effects of bisphenol A, atrazine, phthalates and other common toxicants on molecular and cellular targets involved in tumor-associated inflammation (e.g. cyclooxygenase/prostaglandin E₂ , nuclear factor kappa B, nitric oxide synthesis, cytokines and chemokines) are presented as example chemically mediated target molecule perturbations relevant to cancer. Commentary on areas of additional research including the need for innovation and integration of systems biology approaches to the study of environmental exposures and cancer causation are presented.This is the publisher’s final pdf. The published article is copyrighted by the author(s) and published by Oxford University Press. The published article can be found at: http://carcin.oxfordjournals.org/. The publisher and the author(s) have made this article open access
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