Search results

1 – 10 of 37
Per page
102050
Citations:
Loading...
Access Restricted. View access options
Article
Publication date: 14 January 2022

Jose Manuel Sierra, Maria del Rocio Fernandez, Jose Ignacio Ignacio Rodriguez Garcia, Jose Luis Cortizo and Marta María Villazon

This paper describes the evolution of the design of a mechanical distractor fabricated using additive manufacturing (AM) technology for use in surgical procedures, such as…

101

Abstract

Purpose

This paper describes the evolution of the design of a mechanical distractor fabricated using additive manufacturing (AM) technology for use in surgical procedures, such as transanal endoscopic microsurgery (TEM). The functionality of the final device was analysed and the suitability of different materials was determined.

Design/methodology/approach

Solid modelling and finite element modelling software were used in the design and validation process to allow the fabrication of the device by AM. Several prototypes were manufactured and tested in this study.

Findings

A new design was developed to greatly simplify the existing devices used in TEM surgery. The new design is easy to use, more economical and does not require pneumorectum. Different AM materials were investigated with regard to their mechanical properties, orientation of parts in the three-dimensional (3D) printer and cytotoxicity to select the optimal material for the design.

Social implications

The device designed by AM can be printed anywhere in the world, provided that a 3D printer is available; the 3D printer does not have to be a high-performance printer. This makes surgery more accessible, particularly in low-income regions. Moreover, patient recovery is improved and pneumorectum is not required.

Originality/value

A suitable mechanical distractor was designed for TEM, and different materials were validated for fabrication by AM.

Access Restricted. View access options
Article
Publication date: 15 July 2020

Jose Manuel Sierra, Jose Ignacio Rodríguez, Marta María Villazon, Jose Luis Cortizo and Maria del Rocio Fernandez

This paper aims to describe the development of an internal waste-collection device for patients who have undergone a colostomy or ileostomy. Its design is based on devices that…

106

Abstract

Purpose

This paper aims to describe the development of an internal waste-collection device for patients who have undergone a colostomy or ileostomy. Its design is based on devices that have been produced by 3D printing with acrylonitrile butadiene styrene. The aim is to find an alternative to the external bags that these patients currently use and to evaluate the properties of the device produced by additive manufacturing.

Design/methodology/approach

Software for solid modelling has been used, and virtual models allow its visualization and animation, for evaluation, in a simple and fast way. Subsequently, functional prototypes have been developed by a multidisciplinary team, which includes surgeons and engineers, and have been tested to verify their mechanical properties and suitability for function.

Findings

The project has developed a functional design that has been patented and is in the clinical trials phase. This study demonstrates how 3D printing technologies are the perfect complement to accelerate the design process and build functional prototypes at low costs. The experimental tests regarding cytotoxicity, printing orientation, dynamic and static loads and temperature resistance have demonstrated the validity of the proposed device.

Originality/value

A device for internal pouch in colostomized patients has been designed, manufactured by fused deposition modelling and validated.

Details

Rapid Prototyping Journal, vol. 26 no. 9
Type: Research Article
ISSN: 1355-2546

Keywords

Access Restricted. View access options

Abstract

Details

International Journal of Sociology and Social Policy, vol. 12 no. 4/5/6/7
Type: Research Article
ISSN: 0144-333X

Available. Open Access. Open Access
Article
Publication date: 19 April 2022

David Moscoso-Sánchez, José María Nasarre-Sarmiento, Manuel Trujillo-Carmona, Manuel T. González-Fernández, Ana Luque-Gil, Víctor Sánchez-Sanz and Pablo Vidal-González

In this article, the authors analyse a complex social process affecting historic public paths in rural areas in southern Spain. Despite the fact that urban populations are…

1780

Abstract

Purpose

In this article, the authors analyse a complex social process affecting historic public paths in rural areas in southern Spain. Despite the fact that urban populations are demanding the enhancement of this type of natural heritage for tourism, sports and recreational use, some parts of the network have been abandoned or usurped.

Design/methodology/approach

The study is multidisciplinary, comprising three interlinked studies. The cartographic study comprises an inventory of public paths in rural areas based on administrative sources. The legal study analyses local, regional and national regulations governing agricultural, environmental, heritage, sports and tourism uses of the infrastructure. The sociological study analyses social discourses on the uses of public paths, and identifies conflicts between farmers, landowners, environmentalists, sportspeople and tourists.

Findings

The preliminary results identified an important public paths network in Andalusia, approximately 160,000 km. The legal study found that there are laws regulating use, although local authorities do not monitor compliance or provide solutions to enhance management. The sociological study determined the attribution of environmental, cultural and economic value to public paths, but also the existence of conflicts between rural and urban populations.

Research limitations/implications

Given that this is ongoing research, only state of the art and some preliminary albeit sufficiently consistent results are presented.

Practical implications

The results could help to guide public policy and governance of public paths.

Social implications

Public paths promote rural development and a green/sustainable economy.

Originality/value

The research results and conclusions are original.

Details

Journal of Cultural Heritage Management and Sustainable Development, vol. 14 no. 3
Type: Research Article
ISSN: 2044-1266

Keywords

Access Restricted. View access options
Article
Publication date: 8 November 2019

Jose Maria Martin Martin and Jose Manuel Guaita Martinez

The purpose of this paper is to investigate the factors that condition decision making by entrepreneurs in the tourism sector. Specifically, the authors consider whether the…

638

Abstract

Purpose

The purpose of this paper is to investigate the factors that condition decision making by entrepreneurs in the tourism sector. Specifically, the authors consider whether the decisions related to seasonal closure are conditioned by non-economic factors related to quality of life.

Design/methodology/approach

The study uses data from a survey of entrepreneurs in two highly seasonal tourist locations in Spain: one coastal destination and one mountain destination. The information provided by the survey was used to determine the factors that condition the decision to close for part of the year and to analyze the way in which entrepreneurs evaluate the costs and benefits associated with the period of closure.

Findings

The results show that entrepreneurs acknowledge the cost of shutting down during the off-peak season. However, although they recognize this cost, other elements are important in their decision making such as the quality of life of the entrepreneur, the presence of a more profitable secondary activity in a different destination and the tenure regime of the business. Entrepreneurs attach great importance to factors that justify the closure of establishments for several months a year. This, in turn, means that public policies designed to reduce the intensity of seasonality lose effectiveness.

Originality/value

This paper sheds light on whether there are underlying non-economic motives that lead to a shutdown during the off-peak season. There are no previous studies that analyze the influence of the decision to close and which consider aspects related to the quality of life of entrepreneurs. Therefore, the study presents the first analysis of entrepreneurs’ assessments of the costs and benefits of a seasonal resting period.

Details

International Journal of Entrepreneurial Behavior & Research, vol. 26 no. 3
Type: Research Article
ISSN: 1355-2554

Keywords

Access Restricted. View access options
Book part
Publication date: 23 June 2022

Carlos Dávila Ladrón de Guevara, Araceli Almaraz Alvarado and Mario Cerutti

Taking as reference a sample of around a hundred biographical materials on entrepreneurs in Mexico and Colombia, the purpose of this chapter is dual. Both to show the relevance…

Abstract

Taking as reference a sample of around a hundred biographical materials on entrepreneurs in Mexico and Colombia, the purpose of this chapter is dual. Both to show the relevance and varied modalities that the biographical approach has enjoyed in business history research since the 1990s, and to display the intrinsic potential this modality of scholarship entails for entrepreneurship endeavors. In particular, it discusses the prospects to incorporate this body of empirical works into the large Latin American audience attending undergraduate, graduate and executive education programs in business, economic history and related fields. The chapter is organized into three sections. The first two are devoted to illustrate relevant patterns in the entrepreneurial trajectory of individuals and entrepreneurial families studied in each of the two countries under consideration. The last section identifies some conceptual issues that may impact current debates on Latin American business development as exemplified in recent business and economic history journal venues and scholarly conferences.

Details

The Emerald Handbook of Entrepreneurship in Latin America
Type: Book
ISBN: 978-1-80071-955-2

Keywords

Access Restricted. View access options
Article
Publication date: 18 November 2021

Jose Manuel Fernandez and Stephan F. Gohmann

Most studies of entrepreneurial failure do not have good measures of consumers' perceptions of product quality. As a result, perceived quality in entrepreneurial success is often…

422

Abstract

Purpose

Most studies of entrepreneurial failure do not have good measures of consumers' perceptions of product quality. As a result, perceived quality in entrepreneurial success is often omitted. The craft brewery industry is comprised of small entrepreneurial firms selling an experience good making it an ideal study setting. Using online beer reviews, the authors examine how perceptions of beer quality and the size of brewery production influence entrepreneurial success of microbreweries and brewpubs.

Design/methodology/approach

Using data from the Brewers Association and over 12 million reviews from beeradvocate.com between 2002 and 2016, the authors examine the relationship between perceived product quality to firm survival. Perceived quality is measured using online beer reviews. The authors expect larger microbreweries will survive longer as will breweries with higher perceived quality. The authors use a conditional log-log hazard model to estimate survival for microbreweries and brewpubs.

Findings

A one standard deviation increase in the beer ratings reduces the probability of exit by 26% for a microbrewery and 19% for brewpubs. The authors find that larger microbreweries have a lower hazard of exiting.

Originality/value

Entrepreneurs in the brewing industry start as home brewers before beginning commercial enterprises. Scaling up production is difficult. The initial size of their brewery is an important determinant of their success. Likewise, the perception of the quality of their beer as measured by consumer ratings gives a good market indication about future survival. This research is one of the few studies to examine the influence of perceived quality on firm survival in a growing industry.

Details

Journal of Small Business and Enterprise Development, vol. 29 no. 3
Type: Research Article
ISSN: 1462-6004

Keywords

Access Restricted. View access options
Expert briefing
Publication date: 11 May 2016

Potential for the development of shale gas in Colombia.

Access Restricted. View access options
Article
Publication date: 1 January 1996

Margaret Y. Champion

Can we do business with strangers? A major handicap to any promotion is ignorance of the market and its members. In order to understand Latin Americans, says Albert Hirschman, we…

124

Abstract

Can we do business with strangers? A major handicap to any promotion is ignorance of the market and its members. In order to understand Latin Americans, says Albert Hirschman, we must first understand how Latin Americans understand each other. We see the “facts” one way, but their perception of these same facts is often very different. This is my purpose in reporting on Peru's attitude and internal discussions on international trade. Why Peru? A U S. State Department official told me that they consider Peru as a sort of bell wether in South America. Abraham Lowenthal of the Inter‐American Dialog says Peru has an international significance greater than would be expected, considering the size of its economy, and E. V. K. Fitzgerald of Cambridge says the Peruvian experience is significant in judgimg prospects in South America.

Details

International Journal of Commerce and Management, vol. 6 no. 1/2
Type: Research Article
ISSN: 1056-9219

Access Restricted. View access options
Article
Publication date: 20 February 2024

Cristian Camilo Fernández Lopera, José Manuel Mendes, Eduardo Jorge Barata and Miguel Angel Trejo-Rangel

At the global level, disaster risk finance (DRF) is playing an increasingly prominent role in the international agendas for climate change adaptation. However, before implementing…

97

Abstract

Purpose

At the global level, disaster risk finance (DRF) is playing an increasingly prominent role in the international agendas for climate change adaptation. However, before implementing such agendas, it is essential to understand the needs and limitations of DRF in the subnational context where they need to impact. This research aims to gain insights into the perspectives of community and governmental actors in Colombia regarding DRF. Its goal is to promote the specific design of collaborative educational and technical assistance processes that consider their interests in the subject and the cultural diversity of the territories.

Design/methodology/approach

To achieve this, semi-structured interviews were conducted, and the findings were organized to highlight key aspects that help to understand DRF perspectives in the Colombian context.

Findings

It was found that the most significant limitations of implementing DRF include a lack of knowledge on the topic, corruption that encourages a reactive approach and the absence of economic resources. Concerns have emerged regarding the possibility of climate risk insurance becoming a profit-driven enterprise and the potential development of dependency behaviors within community groups, leading to maladaptation and moral hazard. Similarly, the implementation of DRF through foreign funds has raised concerns about the loss of territorial sovereignty and autonomy.

Originality/value

This is one of the first studies that carry out this kind of research and contributes to the formulation of inclusive public policies for DRF in different contexts worldwide.

Details

Disaster Prevention and Management: An International Journal, vol. 33 no. 2
Type: Research Article
ISSN: 0965-3562

Keywords

1 – 10 of 37
Per page
102050