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1 – 10 of 66Liliana Sousa, Jéssica Fernandes, Pedro Sá-Couto and João Tavares
Companion animals and social media are two important factors of social interaction and well-being among the older population. This study aims to compare social media use and/or…
Abstract
Purpose
Companion animals and social media are two important factors of social interaction and well-being among the older population. This study aims to compare social media use and/or having companion animals with respect to sociodemographic variables in conjunction with loneliness, social isolation, depression, satisfaction with life and satisfaction with social support.
Design/methodology/approach
This cross-sectional study involves a sample of 250 older community-dwelling adults. The questionnaire comprised sociodemographic, companion animals and social media questions and scales to assess social isolation, loneliness, satisfaction with life and social support and depression. Data were analyzed using descriptive and inferential statistics.
Findings
Four groups emerged: “companion animal/s, no social media” (37.6%); “none” (33.6%); “social media and companion animal/s” (14.4%); and “social media, no companion animal/s” (14.4%). Social media users (with or without companion animals) are the youngest and with higher levels of education; caregivers of companion animals (no social media use) are in-between in terms of age and level of education; and those without companion animals and no social media users are the oldest and with less formal education.
Originality/value
This research examines and compares two key influencers of older adults’ well-being and social interaction (social media and companion animals), that have been researched mostly separately. Findings underlined the cohort effect in the use of social media, suggesting that future older adult cohorts will use more social media whether they have or do not have companion animals.
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Meshal Alsaiari, Mushtaq Khan, Djavanroodi Faramarz and Joao Tavares
This paper aims to investigate the effects of process parameters on parts produced through the material extrusion process to create a piping spacer suitable for oil and gas…
Abstract
Purpose
This paper aims to investigate the effects of process parameters on parts produced through the material extrusion process to create a piping spacer suitable for oil and gas applications.
Design/methodology/approach
The two primary materials examined were Acrylonitrile Styrene Acrylate (ASA) and High-Impact Polystyrene (HIPS). Taguchi’s design of experiment methodology was used for the design of experiments. The effect of processing parameters fill density, layer thickness and printing orientation) on the output factors (maximum compressive strength and specific energy) was analyzed through analysis of variance. According to the application of the piping spacer, compression testing is deemed to be as per ASTM-D695 requirements. In addition to this, the optimum processing factors were identified through gray relational analysis (GRA) and response surface methodology (RSM).
Findings
ANOVA results indicate that fill density had the highest percentage contribution for ASA, with a percentage of 29.84%, followed by layer thickness (27.54%) and printing orientation (22.08%). However, for the HIPS material, density was the most influential element, with a contribution of 77.80%, followed by layer thickness at 16.77% and printing orientation at 4.39%. Optimization of the process parameters through GRA and RSM suggested the optimum parameters combination for ASA was 90° printing orientation, 0.09 mm layer thickness and 100% fill density, whereas HIPS had the same response except for the printing orientation, which was 0°, 0.09 mm layer thickness and 100% fill density.
Originality/value
This paper can serve as an aid in understanding the effect of printing orientation, layer thickness and fill density on the plyometric material extrusion process.
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Rita Carvalho, Tatiana Casado, Liliana Sousa, Sara Guerra and João Tavares
This study aims to identify and characterize the intended legacies of transgender women from Spain and Portugal who embarked on their gender transition at 40+ years.
Abstract
Purpose
This study aims to identify and characterize the intended legacies of transgender women from Spain and Portugal who embarked on their gender transition at 40+ years.
Design/methodology/approach
Semi-structured interviews focusing on intended legacies were performed with seven participants (three Portuguese and four Spanish), aged 52–66 years. The interviews were submitted for thematic analysis.
Findings
The main findings show that all participants reported intended legacies: personal, to be remembered as a good person; broader, to support younger transgender persons to come out earlier in life and to guide and mentor other transgender persons; and composite, to contribute by being a positive role model and being happily engaged in contributing to others.
Originality/value
This understanding may help in developing adequate practices that promote involvement of transgender persons who are in middle to late life in supporting transgender persons rights and well-being.
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Abstract
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Gulden Manarbek and Markus Seyfried
Academics’ perceptions of the motives of the introduction of quality management are still rarely investigated, particularly in Central Asian countries. Thus, this paper aims to…
Abstract
Purpose
Academics’ perceptions of the motives of the introduction of quality management are still rarely investigated, particularly in Central Asian countries. Thus, this paper aims to understand the internal dynamics of organisational change within higher education institutions.
Design/methodology/approach
The paper presents evidence from an online survey of academics from three Kazakh national universities. Their perceptions are presented with a quantitative descriptive approach using means and standard deviations.
Findings
The results show that academics perceive institutional (e.g. regulations, professional standards, existing norms, etc.) and instrumental explanations (e.g. institutional learning, improvement, intra- and inter-organisational competition, etc.) of the introduction of quality management as equally important. This contradicts existing evidence from surveys of other groups within higher education institutions.
Originality/value
In addition to evaluating the literature, the paper combines institutional and instrumental reasons for the introduction of quality management in Kazakh universities. Taking a perspective centred on academics, the results indicate that scholars’ assessments reveal a comparatively low variance regarding the importance of quality management. Based on these results, the paper suggests that empirical studies need to be broadened with comparative perspectives from different organisational contexts, groups and administrative traditions.
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Cláudia Fabiana Gohr, Maryana Scoralick de Almeida Tavares and Sandra Naomi Morioka
This paper aims to propose an assessment framework to evaluate companies' innovation capability in the context of industrial clusters.
Abstract
Purpose
This paper aims to propose an assessment framework to evaluate companies' innovation capability in the context of industrial clusters.
Design/methodology/approach
The assessment framework was built based on the Graph-Theoretic Approach (GTA) to measure the influence of the factors and sub-factors of innovation capabilities. To quantify the level of interdependence between factors and sub-factors of innovation capability Delphi method was adopted. The authors developed five case studies in firms from an Information and Communications Technology and Creative Economy cluster in Northeastern Brazil to test the framework's applicability.
Findings
The results showed that identifying and evaluating the factors of innovation capability allows a larger understanding of what affects these capabilities to a greater or lesser extent and contributes to strategic decision-making.
Research limitations/implications
The framework evaluates the innovation capability of each firm, not providing an index for the whole industrial cluster. Besides, the framework does not consider the innovations developed by the companies through the innovation's capabilities. As the Delphi technique was adopted to analyze the levels of influence or interdependence between factors and sub-factors of innovation capability, different experts may lead to different results.
Practical implications
Among the managerial implications, the authors can highlight the innovation capability index as a practical performance measure to stimulate improvement initiatives regarding innovations in industrial clusters. Besides, as the proposed framework is generic, research organizations, public institutions and regional governments can adopt it to analyze innovation capabilities in cluster-based companies.
Originality/value
Previous industrial cluster studies have concentrated on knowledge transfer as the main attribute influencing innovation capabilities. The literature also presents assessment frameworks focusing on qualitative analyses or innovation capabilities outcomes (patents and products). Differently, the authors proposed a quantitative assessment framework considering specific factors (and sub-factors) of innovation capabilities in industrial clusters.
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João Da Rocha Lima Júnior and Claudio Tavares De Alencar
The office market in São Paulo has been in recession since the year 2000. This situation came up due to two main factors: [i] the very aggressive attitude of developers during…
Abstract
The office market in São Paulo has been in recession since the year 2000. This situation came up due to two main factors: [i] the very aggressive attitude of developers during the period that comprises the year 1999 until 2000. At that time there was a very strong perception among investors that a new expansion era for new office buildings in São Paulo was about to begin and, moreover the Brazilian economy had started its recovery; [ii] The intense retraction of the Brazilian economy along with the political transition in 2002, which was mainly caused by the deterioration of the expectations in relation to the economic policies that would be performed by the new government.The recovery of the economic activity in the office building market firstly depends on the macroeconomic growth in Brazil and within the São Paulo metropolitan area. On the other hand, the expansion of the activity in the office buildings sector relies not only on the developers’ expectations of how and when the current vacant units will be rented, but also on the potential risk‐return composition of new buildings to be developed in the next years. This paper describes the economic scenario in which investment decisions to build new office buildings for rent in our local market are made and we also simulated both the necessary period of time for investments in the São Paulo office market to recover attractiveness and the time interval for the increase in the occupation rate absorb the actual vacant spaces. These simulations have taken place based on projections for the Brazilian GNP increase and they showed that for an annual increment of 4.5%, in 3 years could be reached both, attractiveness for new investment and occupation of vacant areas. For a 2.0% annual growth, the absorption of vacant spaces will take 4 years from now and new investment would be attractive only in 2012. Besides, we discuss the market prices fluctuations on the inflexion point where the transition from one phase of the real estate cycle (recession‐non attractiveness) to another (recovery‐attractiveness) occurs.
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Sérgio B Gonçalves, Pedro Dantas, Francisco Guedes de Melo, João Gouveia, José Guimarães Consciência, Jorge Martins and Miguel Tavares da Silva
Arthroscopic osteochondroplasty is a minimally invasive procedure that has been used to treat femoroacetabular impingement syndrome, leading to significant improvements in…
Abstract
Purpose
Arthroscopic osteochondroplasty is a minimally invasive procedure that has been used to treat femoroacetabular impingement syndrome, leading to significant improvements in patients’ clinical outcomes and quality of life. However, some studies suggest that inadequate bone resection can substantially alter hip biomechanics. These modifications may generate different contact profiles and higher contact forces, increasing the risk of developing premature joint degeneration. To improve control over bone resection and biomechanical outcomes during arthroscopic osteochondroplasty surgery, this study aims to present a novel system for measuring femoroacetabular contact forces.
Design/methodology/approach
Following a structured design process for the development of medical devices, the steps required for its production using additive manufacturing with material extrusion and easily accessible sensors are described. The system comprises two main devices, one for measuring femoroacetabular contact forces and the other for quantifying the force applied by the assistant surgeon during lower limb manipulation. The hip device was designed for use within an arthroscopic environment, eliminating the need for additional portals.
Findings
To evaluate its performance, the system was first tested in a laboratory setup and later under in-service conditions. The 3D printing parameters were tuned to ensure the watertighness of the device and sustain the intraoperative fluid pressures. The final prototype allowed for the controlled measurement of the hip contact forces in real-time.
Originality/value
Using additive manufacturing and readily available sensors, the present work presents the first device to quantify joint contact forces during arthroscopic surgeries, serving as an additional tool to support the surgeon’s decision-making process regarding bone resection.
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Claudio Tavares de Alencar, João Rocha Lima and Eliane Monetti
The purpose of this paper is to simulate possoble scenarios of São Paulo’s office market recovering. In 2006, a previous paper that dealt with the same issue was published which…
Abstract
Purpose
The purpose of this paper is to simulate possoble scenarios of São Paulo’s office market recovering. In 2006, a previous paper that dealt with the same issue was published which the authors propose to analyse here. After eight years, the São Paulo office market is starting a new phase within its cycle. Then, the first part of this paper, as in Rocha-Lima and Alencar (2006), describes the economic scenario in which investment decisions are made for developing office buildings in the Brazilian market. Afterward, the authors simulated both the necessary period of time for investments in the São Paulo office market to recover attractiveness and time for the increase in the occupation rate to absorb the current vacant spaces.
Design/methodology/approach
These simulations were carried out using simple linear regressions models using the Brazilian gross domestic product (GDP) as explanatory variable to prices and vacancy rates dependent ones.
Findings
The authors have found that the vacant space can be fully re-occupied in the beginning of 2021 or mid of 2022, according to the GDP growth rate, and, from this moment on, the demand for new spaces may grow, and, moreover around 2019, investments may become attractive again in this market.
Originality/value
This paper offers an alternative approach for estimating office building scenarios, especially when the database of the market is scarce. It also permits to evaluate an investment strategy for emerging markets within next years, particularly in São Paulo, Brazil.
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