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    Wyświetlanie 1-4 z 4
    Tytuł:
    Adaptation of Propagation Models to Improve the Coverage Range Prediction of LoRaWAN Technology at 915 MHz in an Urban Environment
    Autorzy:
    Suarez-Suare, Carlos René
    Rueda, Diego F
    Timaná-Eraso, Luis Carlo
    Leon-Leon, Jose
    Powiązania:
    https://bibliotekanauki.pl/articles/27311960.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    LoRaWAN
    propagation models
    Internet of things
    urban coverage
    fitted model
    Opis:
    Long Range Wide Area Network (LoRaWAN) technology has established new concepts for long-range wireless communication, being widely used in the implementation of IoT solutions. Therefore, it is crucial to validate the coverage of the signal and to know the distance at which a LoRAWAN communication system can be connected. This document investigates LoRaWAN technology for cases based on urban environments, so it can be used as a guide for those projects that require predicting the connection distance range of a LoRaWAN link. In addition, it serves as a tool for the reader when it comes to predicting the coverage of Long-Range Wide Area Network (LoRaWAN) technology. Measurements were made in a LoRaWAN network deployed in urban environments, where RSSI measurements were made in the city of Bogotá D.C., Colombia. Experimentally RSSI values were compared with four different propagation models at a frequency of 915 MHz in urban environments. The contribution of this work is an adjustment to widely used prediction models, according to the recommendation of the International Telecommunications Union (ITU) ITU-R P.1546, which allows estimating coverage in scenarios with characteristics similar to Bogotá D.C. This allows to know with precision the coverage before implementing the LoRaWAN communications system at 915 MHz. The results of comparing field measurements with fitted propagation models show that the Okumura model is the best predictor of coverage with a minimum error rate.
    Źródło:
    International Journal of Electronics and Telecommunications; 2023, 69, 4; 733--744
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    La brecha de género en la toma de decisiones sobre el propio cuerpo. Una aproximación desde la Latinoamérica barroca y contemporánea
    The Gender Gap in Decision Making about One’s Own Body. An Approach from Baroque and Contemporary Latin America
    Autorzy:
    VÁZQUEZ PARRA, José Carlos
    COSS Y LEÓN COSS Y LEÓN, Domingo
    Powiązania:
    https://bibliotekanauki.pl/articles/486099.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    mujeres
    religión
    servicios sanitarios
    reproducción
    cuerpo
    women
    religion
    health services
    reproduction
    body
    Opis:
    Resulta sorprendente que en pleno siglo XXI una persona no pueda tomar decisiones sobre su propio cuerpo simplemente a causa de su género. Pues bien, esta es una realidad que hoy en día siguen viviendo muchas mujeres latinoamericanas, quienes ven limitada su autonomía y libertad por los hombres de su entorno. El acceso a los sistemas de salud, la toma de decisiones sobre su labor reproductiva o incluso la posibilidad de recibir información sobre su sexualidad, son algunos de los puntos que en varias regiones latinoamericanas se ven coartadas a causa de tradiciones, costumbres o una falta de participación económica de la mujer. El pre-sente artículo, tiene el objetivo de hacer una reflexión sobre la relación y posibles reminiscencias que la negación histórica al cuerpo femenino pudiera contribuir en la actual brecha de género en Latinoamérica.
    It is surprising that in the 21st century a person cannot make decisions about their own body simply because of their gender. Well, this is a reality that many Latin American women continue to live with today, who see limited autonomy and freedom from the men of their environment. Access to health systems, decision-making about their reproductive work or even the possibility of receiving information about their sexuality are some of the points that in some Latin American regions are restricted because of traditions, customs or a lack of economic participation of women. This article reflects on the relationship and possible reminiscences that the historical negation of the female body could contribute to the current gender gap in Latin America.
    Źródło:
    Revista del CESLA. International Latin American Studies Review; 2017, 20; 353-365
    1641-4713
    Pojawia się w:
    Revista del CESLA. International Latin American Studies Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Disentangling the impact of ICT adoption on SMEs performance: the mediating roles of corporate social responsibility and innovation
    Autorzy:
    León-Gómez, Ana
    Santos-Jaén, Jose Manuel
    Ruiz-Palomo, Daniel
    Palacios-Manzano, Mercedes
    Powiązania:
    https://bibliotekanauki.pl/articles/19322605.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Badań Gospodarczych
    Tematy:
    information and communication technologies
    ICT
    corporate social responsibility
    CSR
    innovation
    firm performance
    Partial Least Squares-Structural Equations Modeling-PLS-SEM
    Opis:
    Research background: The literature on the effects of Information and Communication Technologies (ICT) on performance is extensive and shows a significant positive effect. Likewise, the use of ICT to facilitate and report on Corporate Social Responsibility (CSR) practices implemented by Small and Medium Enterprises (SMEs) contributes to improve business performance. Moreover, through innovative activities, firms also obtain competitive advantages that impact positively on their performance, even more so when they are impacted by CSR. For this reason, it is expected that the adoption of ICTs in companies through a CSR-oriented strategy will increase their impact on business performance.   Purpose of the article: This article tries to examine how ICT affects SMEs' performance through CSR and innovation. Methods: We tested our hypotheses using a sample of 2,825 Spanish SMEs and by applying a Partial Least Squares Path Modeling (PLS-PM) with a double confirmatory and predictive purpose: to identify the causal relationships between latent variables, and to evaluate the ability of the model to make predictions for individual cases. Findings & value added: The results show that CSR-oriented ICT impacts innovation by changing strategies and business model in companies. Moreover, the implementation of CSR practices gave them competitive advantages to increase their performance. We highlight how innovation gives companies greater capacity to respond to changes in their environment and how innovation positively impacts the link between CSR and performance. Finally, our research makes two significant contributions to the literature by incorporating two sequential mediating effects into the model. On the one hand, the indirect effect of ICT on innovation through CSR. On the other hand, the indirect effect of CSR on SME performance through innovation.
    Źródło:
    Oeconomia Copernicana; 2022, 13, 3; 831-866
    2083-1277
    Pojawia się w:
    Oeconomia Copernicana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An active role for the elderly in the process for an integrated Europe
    Autorzy:
    López-Liria, Remedios
    Díaz-López, Pilar
    Rocamora-Pérez, Patricia
    Aguilar-Parra, José Manuel
    Manzano-León, Ana
    Padilla-Góngora, David
    Powiązania:
    https://bibliotekanauki.pl/articles/954226.pdf
    Data publikacji:
    2016
    Wydawca:
    Fundacja Pro Scientia Publica
    Tematy:
    lifelong learning
    elderly
    intercultural
    Opis:
    The European project entitled "Integrating adults and the elderly towards a Europe of knowledge", coordinated by the University of Almería, within the actions of "Grundtvig learning partnerships for adult education", has carried out the assessment of an educational program for people over 55 years in five countries. The aim of the learning partnership was “to encourage the development of innovative practices in education of older people and their transfer between countries”. Methods: Some of the following teaching tools and methods were used to promote intercultural communication skills: simulation activities, followed by reflective discussion and/or written analysis; guided group activities; local visits to contact people from other countries; ethnographic projects. Results: The courses provide knowledge and understanding about culture, institutions and different ways of life in diverse communities, and encourage reflection about their own cultural behaviour, practices and attitudes, as well as those of others. Old people enhance communication in their community, by means of meetings in which they talk about their common concerns. This can help the elderly to overcome problems and reduce feelings of loneliness. The courses also help old people acquire new knowledge and skills in a rapidly changing world. Conclusions: Participants’ motivation increased as the sessions were developed, since the contents of the classes agreed with their own interests, with a constant widening of knowledge. Everybody had an active role in the discussions. This training has shown some aspects about ageing, such as the removal of the image of  the idle retired person; at the same time it promotes active retirement, intergenerational relationships and independence, and improves social and personal skills
    Źródło:
    Journal of Education Culture and Society; 2016, 7, 1; 32-41
    2081-1640
    Pojawia się w:
    Journal of Education Culture and Society
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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