University of Malta

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    24762 research outputs found

    Small islands and the large temporal questions : Eriksen’s contribution to studies of island temporalities

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    Already in his 2001 book Øyeblikkets tyranni (Tyranny of the moment), Thomas Hylland Eriksen’s lifelong engagement with critical ethnographic and theoretical discussions on time and temporalities was cemented. In this paper, I explore the meaning and perception of ‘wait/waiting’ in the context of small island territories (SITs), with special focus on the Faroe Islands in the Northeastern Atlantic. The navigation between chronometric time and traditional temporalities, which influences the multilayered cultural practices of waiting, is examined as an expression of shifting island temporalities. When is waiting experienced as slow or fast, as a short-term or continuous activity? Drawing on anthropological studies from the Faroe Islands, this paper connects island temporalities to geo-physical characteristics of SITs. Inspired by Eriksen’s work on time and globalization, as well as by international small island culture studies, I am also digging into the art of waiting as a decelerating resistance against (‘new’) clock time in small and remote islands. Waiting is not ‘dead time’ or ‘empty time’. As Eriksen (2018) stressed, waiting can be suffering, as in the case of refugees waiting for their permit to stay in the country of arrival; but it can also be associated with hope and agency. [excerpt]peer-reviewe

    Overcoming uncertainties associated with local thermal response functions in vertical ground heat exchangers

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    The short-term performance of ground heat exchangers (GHEs) is crucial for the optimal design of ground-source heat pumps (GSHPs), enhancing their contribution to sustainable energy solutions. Local short-time thermal response functions, or shorttime g-functions (STGFs) derived from thermal response tests (TRTs), are of great interest for predicting the heat exchange due to their fast and simple applicability. The aim of this work is to perform a sensitivity analysis to assess the impact of thermal parameter variability and TRT operating conditions on the accuracy of the average fluid temperature (Tf ) predictions obtained through a local STGF. First, the uncertainties associated with the borehole thermal resistance (Rb), transmitted from the soil volumetric heat capacity (CS) or some models dependent on GHE characteristics, such as the Zeng model, were found to have a low impact in Tf resulting in long-term deviations of ±0.2 K. Second, several TRTs were carried out on the same borehole, changing input parameters such as the volumetric flow rate and heat injection rate, in order to obtain their corresponding STGF. Validation results showed that each Tf profile consistently aligned well with experimental data when applying intermittent heat rate pulses (being the most unfavorable scenario), implying deviations of ±0.2 K, despite the variabilities in soil conductivity (λS), soil volumetric heat capacity (CS), and borehole thermal resistance (Rb).peer-reviewe

    Book review : Multidimensional threats and regional responses to Caribbean security

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    In this book, Professor Wendy C. Grenade focuses on a critical gap in security studies by examining how small island developing states (SIDS) in the Caribbean Community (CARICOM) confront intersecting security challenges. The book’s central premise – the need for a SIDS-specific security framework that moves beyond Western-centric approaches – is necessary and the work therefore offers valuable insights into Caribbean security cooperation. [excerpt]peer-reviewe

    Insight into the structural integrity assessment of the European DEMO fusion reactor divertor (part I : general discussion)

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    This paper gives a description of the conceptual design of the DEMO divertor highlighting its two main functions and the main loading conditions acting on it during operation. The paper stresses the importance of Design by analysis (DBA) and structural integrity assessments at the conceptual design phase. It explains why currently the predominant DBA approach taken by the DEMO divertor group within the EUROfusion consortium is the elastic approach rather than the elastoplastic approach. Background to the DBA elastic approach describing linearization of stresses through the wall thickness and to stress categorisation that allows different stress allowables to be used for a more efficient design is given. Throughout the paper, the RCC MRx code structural integrity P Type and S Type checks as applied to the DEMO divertor components are summarised and difficulties in applying the elastic design rules to the divertor model are highlighted. These difficulties range from issues of code interpretation as applied to the DEMO divertor geometry to limited availability of material properties for Eurofer97 steel (a low activation steel) which is the main material selected for the divertor. In a follow up paper (Part II: Application Examples), some of these difficulties are demonstrated by considering two stress classification lines in the model of the current DEMO divertor model. In this paper, the phenomenon of elastic follow up is explained and DEMO divertor load cases when this has to be taken into consideration are discussed. A short explanation on Neuber’s rule, which is used to calculate estimates of plastic strain and to differentiate between primary and secondary stresses for Type S checks is also given. At the end of the paper, the conclusions summarise the interpretation and issues encountered in the application of the RCC-MRx rules for a typical nuclear fusion reactor component such as the DEMO divertor design.peer-reviewe

    Strategies supporting transitions from kindergarten to primary school : school leaders’ perspectives

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    Transitioning from kindergarten to primary school is a critical phase in children’s educational journey. Despite attracting much attention internationally, local research about transitions and their impact has been negligible. Such research is vital to facilitate and ensure a seamless transition as children and families are expected to adapt from non-compulsory to compulsory education settings. In this study, Heads of School were invited to respond to anonymous, self-administered, online questionnaires to identify strategies and procedures adopted at their schools which support the transition from kindergarten to Year 1. Seventy (70) Heads from Maltese Church, State and Private school settings responded. The shared insights into transition strategies and praxis, suggest that major stakeholders are involved in existing practices. However, in keeping with Bronfenbrenner’s bio-ecological systems theory, more culturally responsive strategies should be considered by schools together with opportunities which empower children and families, enabling them to share their perspectives, expectations and concerns about transitions.peer-reviewe

    Product price model based on random exponential pattern of consumer population behaviour

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    PURPOSE: The main purpose of the article is to find the dynamic stability of the market equilibrium point under the specific assumptions of the consumer’s surplus. The provided analysis takes advantage of the supply and demand for a hypothetical good using statistical methods.DESIGN/METHODOLOGY/APPROACH: The research is based on the mathematical model with statistical distributions of selected microeconomic random variables. The equations refer to the consumer’s willingness to buy a good (a deterministic equation), the purchase probability (a stochastic equation) and the price of the good as a function of the marginal cost and the fraction of consumers who buy the good (a deterministic equation). The three above equations are interdependent. The price equilibrium point is found using numerical approximations of the final equation.FINDINGS: The model estimates the equilibrium price for a hypothetical good. In this paper it is assumed that the consumer may buy a product even if his or her surplus is negative. Moreover, a dynamic component, i.e. the derivative of the price over time has been added.PRACTICAL IMPLICATIONS: The dynamic stability of the equilibrium point has been mathematically proven. The paper also contains the application of the model and the equilibrium price to the case of the Polish mortgage market in the fourth quarter of 2022.ORIGINALITY/VALUE: The proposed rule is general and can be applied to other goods and markets.peer-reviewe

    Student awareness of university social responsibility initiatives : a pilot study at a Polish university

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    PURPOSE: Understanding students' awareness and perceptions of University Social Responsibility (USR) is crucial, as it can influence their engagement with sustainable development initiatives and shape the university's overall impact on society. The aim of this study was to analyse the awareness of the USR concept among student at a selected Polish university. Additionally, various aspects of USR and USR practices implemented at the investigated university were assessed.DESIGN/METHODOLOGY/APPROACH: The study aimed to answer three main research questions regarding students' knowledge of USR terms, their perception of the university's USR efforts, and their recognition of good USR practices. The survey involved 60 non-randomly selected students, with the questionnaire validated through a pilot study. USR practices implemented at the investigated university were chosen due to their range, longevity and repeatability.FINDINGS: While most respondents were unfamiliar with Corporate Social Responsibility (CSR) concept, they demonstrated an understanding of its derivative, University Social Responsibility (USR). They assessed the university’s compliance with USR requirements in specific aspects rather positively, although the high uncertainty level was stated. The best recognized USR practices were mainly focused on community building.PRACTICAL IMPLICATIONS: The knowledge about students‘ familiarity with USR concepts can support proper implementation of USR strategy, especially in the educational field. The relatively low recognition level of chosen USR good practices demonstrated by students show the strong need for better promotion of university activities among stakeholders.ORIGINALITY/VALUE: This research contributes to the broader understanding of how USR is perceived by students and highlights areas for improvement in USR communication and implementation.peer-reviewe

    Protocol for an umbrella review of systematic reviews evaluating the efficacy of digital health solutions in supporting adult cancer survivorship care

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    Introduction: The growing number of people living with, through and beyond cancer poses a new challenge for sustainable survivorship care solutions. One emerging means of supporting survivorship care is through digital health solutions. Such solutions can be used to monitor health, improve access to healthcare and support healthcare efficiencies. Digital health solutions include mobile health, health information technology, telehealth, apps, wearable devices, chatbots and other technologically assisted provision of services. The breadth and scope of digital health solutions necessitate a synthesis of evidence on their use in supportive care in cancer. This umbrella review will identify, synthesise, and compare systematic reviews which have evaluated the efficacy or effectiveness of digital solutions for adult cancer survivorship care with a particular focus on surveillance and management of physical effects, psychosocial effects, new cancer/ recurring cancers and supporting health promotion and disease prevention.Methods and Analysis: An umbrella review of published systematic reviews will be undertaken to explore the types of digital health solutions used, their efficacy or effectiveness as a form of supportive care, and the barriers and enablers associated with their implementation. The umbrella review will be reported according to the Preferred Reporting Items for Overviews of Reviews (PRIOR) checklist. A search will be conducted across key databases. Records will be assessed by two review authors for eligibility against predefined criteria and will undergo two stage title, abstract and full text screening. All systematic reviews that meet the inclusion criteria will be assessed for quality using the AMSTAR 2 checklist with quality assessment and data extraction by two reviewers. The degree of publication overlap of primary studies across the included reviews will also be calculated and a mapping of the evidence will also be presented.Ethics and Dissemination: As this research proposes using systematic reviews that are already published, ethical approval is not required. Results from this umbrella review will be published in a peer-reviewed journal where any significant deviations from the protocol will be justified.peer-reviewe

    Flora Melitensis : a natural history gem from the village of Żabbar, Malta

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    In 2013, a neglected herbarium entitled Flora Melitensis was rediscovered at the St. Margaret College (Primary B) in Żabbar, Malta. Housed in a custom-built cabinet and dating to 1951–1952, the collection originally comprised around 150 plant specimens prepared by teachers and students as part of an innovative natural history curriculum. Upon discovery, the herbarium was in a state of severe deterioration caused by pest infestations, decayed protective materials, and specimen loss. A ten-month restoration project was undertaken to preserve its scientific and historical value. This process included cleaning, freeze-drying, fumigation, specimen and label conservation, and the replacement of missing plants with newly collected or cultivated material. Of the original specimens, 72 were extant and could be saved, while 32 were recollected from the wild, and eight were recollected from cultivated specimens purposely grown for the collection. Historical investigation confirmed the herbarium’s origins within one of Malta’s earliest initiatives to integrate environmental education in state schools. The restored Flora Melitensis, now forming part of the collection at the National Museum of Natural History in Malta, now serves as both a botanical archive and a cultural artefact, preserving a unique intersection of Maltese floristics, pedagogy, and heritage.peer-reviewe

    Ultrasound vs. x-ray : a new way for clinicians to track scoliosis progression?

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    This retrospective study, utilising prospectively collected data, investigates the use of spine ultrasound as an alternative method for assessing scoliosis, with the aim of reducing radiation exposure. We included 92 patients aged 10 to 16 years with suspected idiopathic scoliosis. Exclusion criteria were weight over 150 kg, metal implants, pre-existing conditions, secondary deformities, and cognitive impairments. Each patient underwent clinical assessment and full spine radiographs, followed by spine ultrasound using the Scolioscan® system. Unprocessed B-mode ultrasound images were analysed using automatic measurements. The correlation between Ultrasound Coronal Angle (UCA) and Radiographic Cobb Angle (RCA) was evaluated at initial and follow-up visits. Strong correlations were found between UCA and RCA, with correlation coefficients ranging from 0.786 to 0.903 (p<0.001). The regression formula showed good predictive accuracy for curve progression on follow-up radiographs. The best results were observed in females and in primary thoracic curves (r = 0.936, p<0.001). Although only four patients exhibited true progression (≥5° increase in Cobb angle), changes in scoliotic angles were effectively detected using ultrasound. This study confirms the feasibility of unprocessed spine ultrasound for scoliosis monitoring in clinical settings. Automatic measurements without 3D reconstruction make ultrasound a practical tool for tracking progression. The regression model shows potential for predicting curve progression, although further validation is needed. These findings suggest spine ultrasound could reduce the need for radiographs, benefiting patients by minimising radiation exposure while providing reliable monitoring of scoliosis progression and treatment outcomes.peer-reviewe

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