scholarly journals Efficiency of small enterprises of protected agriculture in the adoption of innovations in Mexico

2018 ◽  
pp. 52-62 ◽  
Author(s):  
Juan Manuel Vargas Canales ◽  
María Isabel Palacios Rangel ◽  
Jorge Aguilar Ávila ◽  
Joaquín Huitzilihuitl Camacho Vera ◽  
Jorge Gustavo Ocampo Ledesma ◽  
...  

The aim of this research was to identify the factors that influence the efficiency in the adoption of innovations in protected agricultural systems. For the study of these factors, a hierarchical cluster analysis was performed in which three clusters were obtained that showed clearly differentiated behavior. To identify the differences between groups, a variance analysis and a chi-square test was performed. The results show that efficiency in the adoption of innovations is related to the producer’s schooling, his experience, and access to extension services. Derived from the above, it is important to promote greater articulation among producers, promote an integral extensionism capable of promoting collective development and interactions that are developed and evolved in the territories.

Tourism ◽  
2021 ◽  
Vol 69 (1) ◽  
pp. 47-57
Author(s):  
Dev Jani

The purpose of this study was to segment inbound tourists to Tanzania using destination image. A self-administered structured questionnaire was conveniently distributed to inbound tourist to Tanzania in two major international airports in Tanzania. The questionnaire captured destination image using a five point Likert type scale while the demographics, sources of travel information, and travel behavior were captured using dichotomy or multiple choice questions. A total of 625 dully filled questionnaires were used for data analysis. A factor-cluster analysis was used in analyzing the data, with factor analysis serving in reducing the items into few dimensions that were subsequently subjected to stepwise cluster analysis. A hierarchical cluster analysis was used to explore the possible numbers of clusters followed by hierarchical cluster analysis (k-means) that confirmed the appropriate number of clusters. A three cluster solution was obtained with follow up one way ANOVA, t-tests, and Chi-square indicating statistical significance differences between the clusters basing on travel motives and travel behavior. The findings offer practical implications to destination managers on the use of destination image in marketing destinations to different tourist segments. This study explored the possible tourist segments basing on destination image of less researched African context.


Comunicar ◽  
2020 ◽  
Vol 28 (64) ◽  
pp. 29-38 ◽  
Author(s):  
Adoración Díaz-López ◽  
Javier-Jerónimo Maquilón-Sánchez ◽  
Ana-Belén Mirete-Ruiz

ICT use during adolescence is now commonplace. Its power of attraction and the vulnerable condition of adolescents are giving rise to growing concern, aggravated by the imminent consequences of such synergy. In order to deepen understanding of this relationship, the following research objectives were formulated: a) Analyze the frequency of ICT use; b) Examine family supervision; c) Identify stress associated with the use of ICTs; d) Establish profiles of ICT use. The sample consisted of 1,101 adolescents of 10 educational centers in Southeastern Spain. A descriptive analysis was performed and contingency tables, Chi Square, Cramer V, hierarchical cluster analysis and one-factor ANOVA were used. The results show that more than 60% of adolescents use ICTs without supervision and that 1 out of 3 feel stressed in the absence of the Internet. In addition, statistically significant relationships were found between the frequency of ICT use and stress, as well as with family supervision. A solution of three groups or profiles of use was obtained. 45% of the subjects display maladaptive use or signs of it. The study concludes by stressing that the relationship between adolescents and ICTs is far from ideal and warns of the urgent need to train adolescents and parents in the responsible use of ICTs. El uso de las TIC durante la adolescencia es un hecho normalizado en la actualidad. Su poder de atracción y la condición de vulnerabilidad de los púberes están suscitando una creciente preocupación, agravada por las consecuencias inminentes de tal sinergia. Con la finalidad de profundizar en esta relación, se formulan los siguientes objetivos de investigación: a) Analizar la frecuencia de uso de las TIC; b) Examinar la supervisión familiar; c) Identificar estrés asociado al uso de las TIC; d) Establecer perfiles de uso de las TIC. La muestra estuvo compuesta por 1.101 adolescentes de 10 centros educativos del Sureste Español. Se realizó un análisis descriptivo y se emplearon tablas de contingencia, Chi Cuadrado, V de Cramer, análisis de clúster jerárquico y ANOVA de un factor. Los resultados arrojan que más del 60% de los adolescentes usa las TIC sin supervisión y que uno de cada tres se siente estresado ante la ausencia de Internet. Además, se encontraron relaciones estadísticamente significativas entre la frecuencia de uso de las TIC y el estrés, así como con la supervisión familiar. Se obtuvo una solución de tres grupos o perfiles de uso. El 45% de los sujetos tiene un uso desadaptado o indicios del mismo. Se concluye subrayando que la relación entre adolescentes y TIC dista mucho de la deseada y se alerta de la imperiosa necesidad de formar a adolescentes y a progenitores en el uso responsable de las TIC.


2021 ◽  
Vol 17 (2) ◽  
pp. 7-15
Author(s):  
João Ponte ◽  
◽  
Gualter Couto ◽  
Pedro Pimentel ◽  
Áurea Sousa ◽  
...  

Tourism planning is increasingly a fundamental process for qualifying and increasing the competitiveness of tourist destinations, especially when it is required to take into account the new needs of tourists and the global trend towards meeting the principles of sustainable tourism. This study aims to analyse the improvements that, in the opinion of visitors, should be implemented in Ponta Delgada, the largest hub of tourism activity in the Azores (Portugal), detecting differences between specific groups of visitors in order to contribute to the territorial organisation and the optimisation of tourism experiences. Four hundred answers to a survey distributed among tourists who visited this Azorean municipality were analysed, using several statistical methods, such as the chi-square test of independence and some Hierarchical Cluster Analysis algorithms. The main conclusions refer to the statistically significant associations between the mean of transport used to travel and views of some aspects to be improved, with signs of patterns in visits and critical attitude.


Author(s):  
Milan Radojicic ◽  
Aleksandar Djokovic ◽  
Nikola Cvetkovic

Unpredictable and uncontrollable situations have happened throughout history. Inevitably, such situations have an impact on various spheres of life. The coronavirus disease 2019 has affected many of them, including sports. The ban on social gatherings has caused the cancellation of many sports competitions. This paper proposes a methodology based on hierarchical cluster analysis (HCA) that can be applied when a need occurs to end an interrupted tournament and the conditions for playing the remaining matches are far from ideal. The proposed methodology is based on how to conclude the season for Serie A, a top-division football league in Italy. The analysis showed that it is reasonable to play 14 instead of the 124 remaining matches of the 2019–2020 season to conclude the championship. The proposed methodology was tested on the past 10 seasons of the Serie A, and its effectiveness was confirmed. This novel approach can be used in any other sport where round-robin tournaments exist.


2010 ◽  
Vol 41 (2) ◽  
pp. 126-133 ◽  
Author(s):  
N. Kalamaras ◽  
H. Michalopoulou ◽  
H. R. Byun

In this study a method proposed by Byun & Wilhite, which estimates drought severity and duration using daily precipitation values, is applied to data from stations at different locations in Greece. Subsequently, a series of indices is calculated to facilitate the detection of drought events at these sites. The results provide insight into the trend of drought severity in the region. In addition, the seasonal distribution of days with moderate and severe drought is examined. Finally, the Hierarchical Cluster Analysis method is used to identify sites with similar drought features.


2019 ◽  
Vol 15 (S367) ◽  
pp. 397-399
Author(s):  
Arturo Colantonio ◽  
Irene Marzoli ◽  
Italo Testa ◽  
Emanuella Puddu

AbstractIn this study, we identify patterns among students beliefs and ideas in cosmology, in order to frame meaningful and more effective teaching activities in this amazing content area. We involve a convenience sample of 432 high school students. We analyze students’ responses to an open-ended questionnaire with a non-hierarchical cluster analysis using the k-means algorithm.


Sign in / Sign up

Export Citation Format

Share Document