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In the era of Industry 4.0, digital transformation has spurred the swift advancement of technologies, including intelligent predictive maintenance scheduling, prognostics and health management. The accurate prediction of remaining useful life plays a crucial role in these technologies as it extends power equipment’s safe operational duration and decreases the maintenance costs associated with unforeseen shutdowns. Also, the increased accessibility of data for monitoring system conditions has paved the way for the more immense adoption of machine learning models in prognostics and health management for power transformers. At the moment, with the ever-increasing demand for electricity, there is a corresponding increase in the degradation processes of power transformers. Transformers insulation system and more importantly, the paper insulation happens to be the principal part where the degradation is prominent. Therefore, an accurate prediction of the insulating paper condition through its degree of polymerization is required to guarantee the reliability of power transformers. In this regard, the predictions, reliability, and health monitoring of this power equipment can be actualized by modeling the degradation of transformer insulation paper through several machine learning frameworks. In this view, this review paper has been drafted not only to serve as a guide for researchers interested in the fields of transformer insulation system fault prognosis but also to offer insights into potential research directions as existing literature in modeling and evaluating transformer paper insulation is presented.

Natural and synthetic esters are increasingly being chosen instead of mineral oil for environmental and fire safety reasons. However, their use in power transformers is limited due to insufficiently well-understood ageing processes affecting their properties and the properties of cellulosic materials impregnated with them. The research results presented in many scientific papers prove that the use of esters slows the ageing process of cellulosic materials. This article presents the results of research aimed at answering the question of whether the effect of slowing the ageing process will also occur in the case of insulation with very low initial moisture. The answer to this question will allow us to better understand the role of water in the ageing process of the transformer’s insulation system. The thermal ageing process was carried out at a temperature of 150 °C in closed systems. The degree of cellulose polymerisation was taken as a measure of the degree of paper ageing. Great attention was paid to measuring the water content in both paper and electro-insulating liquids at various stages of their ageing. Furthermore, measurements of the properties of electro-insulating liquids were made, which are considered markers of ageing. The test results obtained indicate that in the case of a dry insulation system, corresponding to the initial moisture of the new units, the type of liquid used to impregnate the cellulosic material does not significantly affect its depolymerisation process. However, in the case of paper impregnated with natural esters, a lower dynamic of moisture increase in insulation was observed.

Natural and synthetic esters are increasingly being chosen instead of mineral oil for environmental and fire safety reasons. However, their use in power transformers is limited due to insufficiently well-understood ageing processes affecting their properties and the properties of cellulosic materials impregnated with them. The research results presented in many scientific papers prove that the use of esters slows the ageing process of cellulosic materials. This article presents the results of research aimed at answering the question of whether the effect of slowing the ageing process will also occur in the case of insulation with very low initial moisture. The answer to this question will allow us to better understand the role of water in the ageing process of the transformer's insulation system. The thermal ageing process was carried out at a temperature of 150 °C in closed systems. The degree of cellulose polymerisation was taken as a measure of the degree of paper ageing. Great attention was paid to measuring the water content in both paper and electro-insulating liquids at various stages of their ageing. Furthermore, measurements of the properties of electro-insulating liquids were made, which are considered markers of ageing. The test results obtained indicate that in the case of a dry insulation system, corresponding to the initial moisture of the new units, the type of liquid used to impregnate the cellulosic material does not significantly affect its depolymerisation process. However, in the case of paper impregnated with natural esters, a lower dynamic of moisture increase in insulation was observed. [ABSTRACT FROM AUTHOR]

As the use of electrochemical batteries, especially lithium–ion (Li-Ion) batteries, increases due to emerging applications and expanding markets, the accurate and fast estimation of their state of health (SOH) is becoming increasingly important. The accuracy of the SOH estimation is highly dependent on the correlation strength between the used indicator and SOH and the accuracy of the SOH indicator measurement. This paper presents a new differential indicator which has a strong and consistent correlation with the SOH of Li-Ion batteries, based on a new Electrochemical Impedance Spectrum (EIS) Phase–Magnitude relationship. It is shown in this paper that the EIS Phase–Magnitude relationship exhibits a phase-based differential impedance magnitude SOH indicator between a first-phase peak point and a last-phase valley point. Because of the differential nature of this SOH indicator and because the two impedance values are measured at a phase peak point and a valley phase point regardless of the phase absolute values, the effect of impedance measurement shift/offset (error) on SOH estimation is reduced. This supports the future development of more accurate and faster online and offline SOH estimation algorithms and systems that have a higher immunity to impedance measurement shift/offset (error). Furthermore, in this work, the EIS was measured for a lithium–ion battery that was down to a ~15% SOH, which was not only used to support the conclusions of this paper, but also helped in filling a gap in the literature for EIS data under deep/high degradation levels. [ABSTRACT FROM AUTHOR]

Despite being a well‐known problem, bearing faults are still one of the major challenges that the industry face. The growing use of voltage source inverters imposed the alertness of possible bearing damage due to their high‐frequency signals. The aim of this paper is to investigate the effect of capacitive discharges on a rolling element bearing to obtain a series of faulty bearings with different deterioration levels. An ageing test bench is built to generate bearing roughness using Electric Discharge Machining. The purpose is to study the effect of operation conditions, such as frequency of drive, amplitude of shaft voltage, radial load level as well as rotational speed, on the capacitive discharge occurrence within the bearing. Having the desire to further understand this phenomenon, the influence of each parameter on the discharge activity and the discharge waveform is analysed. A worst‐case scenario is conducted and applied to a series of bearings. Finally, the bearing damage is examined, and a quantitative fault detection method is presented based on a microscopic inspection of the bearing's surface. [ABSTRACT FROM AUTHOR]

With population ageing, frailty is an increasingly critical global health matter. Many studies have focused on physical aspects of frailty, but more recently on the psychosocial aspects of frailty. Within western societies frailty is often linked with fear and suffering. This paper outlines a previously understudied perspective; the spiritual dimension in frailty, bringing a holistic view to this complex condition. The paper presents the main findings of a mixed methods study that focused on the lived experience of older people, receiving high-level care living in residential care or at home. Participants (n = 25) were identified as being frail by staff of the residential aged care organisation, and confirmed by psychometric testing. The quantitative component of the study comprised a survey of psychometric measures of mental health, wellbeing and an index of activities of daily living. The qualitative component followed a phenomenological approach, using the Spiritual Tasks and Process of Ageing model (STPA) as a study framework. Analysis focused on the lived experience of participants and where they found meaning in their perceived vulnerability and through self-transcendence, with reports of things they found hardest in life, and inner strength forming the most important themes. [ABSTRACT FROM AUTHOR]

Once discouraged or viewed as dangerous, Masters athletes are now seen as exemplars of how people should age. This paper qualitatively examines the sporting pathways, embodied experiences and the moral formation of ageing identities among 'young-old' athletes competing in the 16th Australian Masters Games. Held in regional Tasmania (Australia), the Games attracted over 5000 participants competing across 47 sports over an 8-day period. Contributing to a critical body of scholarship on Masters athletes, the paper shows that class and gender inequality shape processes of becoming and being a Masters athlete that are rarely acknowledged in the 'heroic ageing' accounts the participants narrate. Further, the paper develops a unique spatial perspective on Masters sport that recognises the potential of the Games to disrupt place-based stigma but also identifies its class dimensions both as a site of middle-class shame and consumer opportunity for affluent sports tourists. We draw upon Allen-Collinson's concept of 'intense embodiment' to spotlight the sensory pleasures, pain and injuries of training and competing as an older athlete but also as an important lens for analysing the construction of ageing moral identities that can stigmatise and exclude the inactive old. [ABSTRACT FROM AUTHOR]

A large proportion of hospital inpatients are affected by cognitive impairment, posing challenges in the provision of their care in busy, fast-paced acute wards. Signs and symbols, known as visual identifiers, are employed in many U.K. hospitals with the intention of helping healthcare professionals identify and respond to the needs of these patients. Although widely considered useful, these tools are used inconsistently, have not been subject to full evaluation, and attract criticism for acting as a shorthand for a routinized response. In order for visual identifiers to be used effectively in acute care settings, thorough consideration must be given to the ethical and legal issues that are engaged in this context, and their potential benefits and harms must be weighed and balanced. This paper proposes a set of legal and ethical principles that can be used to guide the implementation of visual identifiers. Together, these principles provide a framework applicable in the design and implementation phases to systematically identify relevant considerations arising from the use of these tools. We outline some tensions that arise between principles and conclude that selecting a preferred moral framework could help to guide decision-making, as does clarity around the purpose and objectives of the identifier. [ABSTRACT FROM AUTHOR]

This paper explores the experiences and perceptions of Zora, an older Muslim woman living with a disability in the UK. Older disabled Muslim women in the UK often face multiple discriminations based on disability, age, gender, religious, and racial grounds and this has arguably been intensified by the COVID-19 pandemic. Drawing on multiple narrative interviews with Zora, this paper focuses on the intersections of disability, ageing, gender, race and religion within a particular social context during the COVID-19 pandemic in the UK. The paper describes the complex ways in which Zora experienced various modes of everyday disablism which were not related to the COVID-19 virus itself, rather the consequences of the movement restrictions associated with it. Much of the oppression and barriers she described were socially determined, both through direct discrimination, stares and prejudicial attitudes, and indirectly through stigmatization and an embodied fear of the reaction of others in public spaces. Nevertheless, Zora did not present herself as a victim. Instead she portrayed herself in affirmative terms, as a 'brave' woman who resisted and overcame daily social challenges and movement restrictions as part of working toward creating a more accessible, inclusive and age-friendly society. One that is inhabitable for herself and other older disabled women facing an uncertain future. [ABSTRACT FROM AUTHOR]

This article seeks to identify the key elements necessary to develop an effective psychological practitioner workforce ready to work with older people with a range of needs across multiple settings. It highlights the demand for psychological skills linked with the increasing age of the population and the need to expand the workforce accordingly. The role of the Faculty of the Psychology of Older People (FPOP) in advocating for greater emphasis on older adult needs is noted alongside their work in delivering the training and supervision required. Their published work linked with psychological therapies and dementia interventions is discussed, alongside established conference and bulletin outputs. The paper moves to discuss specific psychological practitioner workforce needs and developments across clinical psychology training courses, NHS Talking Therapies for Anxiety and Depression services, the Community Mental Health (CMHT) Transformation agenda and work within dementia and neurodegenerative conditions. Throughout the importance of leadership, consultancy and supervision are highlighted as well as the need to consider older adult needs within a framework of equality, diversity and inclusion, with a critical eye to the role ageism may play in impeding progress. Ultimately, working psychologically with older people requires expertise and a diverse skill set, the privilege of working with fascinating people which leads to a fulfilling role working with other enthusiastic and supportive clinicians. [ABSTRACT FROM AUTHOR]

One of the central social challenges of the 21st century is society's aging. AI provides numerous possibilities for meeting this challenge. In this context, the concept of digital twins, based on Cyber-Physical Systems, offers an exciting prospect. The e-VITA project, in which a virtual coaching system for elderly people is being created, allows the same to be assessed as a model for development. This white paper collects and presents relevant findings from research areas around digital twin technologies. Furthermore, we address ethical issues. This paper shows that the concept of digital twins can be usefully applied to older adults. However, it also shows that the required technologies must be further developed and that ethical issues must be discussed in an appropriate framework. Finally, the paper explains how the e-VITA project could pave the way towards developing a Digital Twin for Ageing. [ABSTRACT FROM AUTHOR]

This article addresses the often overlooked but critical long-term factors of creep, shrinkage, ageing and corrosion in civil engineering structures. The paper emphasizes their substantial impact on structural mechanical resistance and safety, drawing attention to key examples like the Civic Tower in Pavia, the Koror-Babeldaob Bridge and dams in the USA. By exploring the challenges faced in modern engineering, the article sheds light on the need to consider these effects. Various models for predicting creep and shrinkage in concrete structures are introduced as potential solutions. In conclusion, the paper highlights the necessity for engineers to navigate the intricacies of material behaviour for successful construction amidst evolving challenges. [ABSTRACT FROM AUTHOR]

The paper mobilises a personal experience of participation in a population-based health screen to explore wider aspects of subjectivity, choice and freedom. The screen is a familiar feature of contemporary society and represents a broader 'health imperative'. It intrinsically enforces a binary choice and thus, within its own remit, produces two reductive modes of being its subject characterised, respectively, by assent and refusal. Merleau-Ponty's account of a 'conditioned freedom' operating within a primordial, embodied subjectivity, however, allows a recuperation of aspects of my enactment of choice that tend otherwise to be eclipsed within the screen's binary logic. The thinking of two more recent writers deepens my understanding of how this freedom might play out within experience. David Abram helps me grasp the extent to which I encounter the screen as an ageing animal. Meanwhile a contrast with a very different historical and inter-cultural confrontation explored by Eduardo De Castro raises far-reaching questions around the bindingness of decision and the self/other relation. [ABSTRACT FROM AUTHOR]

This study examines the perspectives and experiences of older lifelong participants in outdoor education/recreation. 32 participants, women (11) and men (21), aged 60-84 provided narratives of their lifelong engagements in the outdoors in nature-based activities. They were invited to write freely on their early experiences and their current engagements in the outdoors. The purpose was to explore and understand why and how serious lifelong older participants continued with their outdoor activities. This paper considers participants' current embodied engagements. The evidence suggests that as they age, their bodies become less able to deal with discomfort. Yet, the participants, as a consequence of their lifelong knowledge and experience, manage injuries and ill-health, choosing to adapt in various ways to enable their continued engagement/enjoyment in being active in nature. The study stresses the significance of lifelong engagement in the outdoors and the necessity for opportunities for outdoor nature -based experiences throughout the lifespan. [ABSTRACT FROM AUTHOR]

This document is an editorial published in the journal Frontiers in Immunology. It discusses the role of myeloid-derived suppressor cells (MDSCs) in various health conditions and diseases, including cancer, autoimmunity, pregnancy, neonates, and aging. The editorial highlights the complexity of MDSCs and their potential as targets for immunotherapy. It also presents five research papers that provide insights into the multifaceted roles of MDSCs in oncogenesis, maternal-fetal interface, and aging, contributing to a better understanding of MDSCs biology and the development of more effective immunotherapeutic approaches. [Extracted from the article]

In recent years, the Egyptian demographic has changed with an increasing number of older citizens who require special attention. The World Health Organization (WHO) identified 2020–2030 as the "Decade of Healthy Ageing" in response to the worldwide demographic changes. Many international organizations have identified the built environment features of age‐friendly communities, yet they have not been thoroughly analyzed in the Egyptian context. Today, urban designers and city planners have to establish age-friendly communities that can facilitate well-being in old age. The paper aims to provide "Egyptian framework for an age-friendly built environment E-FAB", that can help architects, urban designers, and decision-makers evaluate Egyptian urban communities towards being age-friendly. The E-FAB is created and designed based on an analytical theoretical approach focused on active older people's definitions, needs, their relation to the built and social environments, and previous practices of age-friendly cities and communities. In addition, a comparative analysis between previous studies in age-friendly communities. Then, the paper conducted semi-structured interviews targeting active older people, aiming to refine and rank the built environment features of the E-FAB by using SPSS. The findings revealed that the E-FAB is expected to be an initial simple evaluating framework that could contribute positively to improving Egyptian urban areas to be more friendly to older people and address their needs in the built environment. [ABSTRACT FROM AUTHOR]

Current research on human aging has largely been guided by the milestone paper "hallmarks of aging," which were first proposed in the seminal 2013 paper by Lopez‐Otin et al. Most studies have focused on one aging hallmark at a time, asking whether the underlying molecular perturbations are sufficient to drive the aging process and its associated phenotypes. More recently, researchers have begun to investigate whether aging phenotypes are driven by concurrent perturbations in molecular pathways linked to not one but to multiple hallmarks of aging and whether they present different patterns in organs and systems over time. Indeed, preliminary results suggest that more complex interactions between aging hallmarks must be considered and addressed, if we are to develop interventions that successfully promote healthy aging and/or delay aging‐associated dysfunction and diseases. Here, we summarize some of the latest work and views on the interplay between hallmarks of aging, with a specific focus on mitochondrial dysfunction. Indeed, this represents a significant example of the complex crosstalk between hallmarks of aging and of the effects that an intervention targeted to a specific hallmark may have on the others. A better knowledge of these interconnections, of their cause‐effect relationships, of their spatial and temporal sequence, will be very beneficial for the whole aging research field and for the identification of effective interventions in promoting healthy old age. [ABSTRACT FROM AUTHOR]

This paper examines the impact of Artificial Intelligence (AI) on early retirement (ER) decisions in Europe. For the analysis, we utilize microdata from the Survey of Health, Ageing and Retirement in Europe, along with occupation-level data on AI advances and AI exposure. Initially, we investigate the influence of AI advances and AI exposure separately, finding in both instances a significant reduction in ER likelihood, though this only applies to workers with higher education. Subsequently, we explore the interaction between AI advances and AI exposure concerning ER probability. This interaction proves critical in determining AI's impact on ER transitions. Specifically, we observe a significant reduction in ER probabilities for workers whose occupations exhibit high levels of AI advances and high expectations for further implementation of this technology in the future. Finally, we jointly analyse the interaction between AI advances, AI exposure, and education level. This analysis highlights that workers' ER probabilities may either increase or decrease in response to the AI revolution, depending on their education level and the characteristics of their occupations in terms of AI advances and AI exposure. [ABSTRACT FROM AUTHOR]

This article is a continuation of work on the use of plastic waste (such as PP, PS, LDPE, HDPE, and their mixtures) processed in the proprietary pyrolysis process as asphalt additives. The article carried out detailed tests of the mixes of selected additives with pen-graded bitumen 50/70, taking into account, among others, the influence of impurities and the ratio of PE to PP in the additives as well as short- (RTFOT) and long-term (RTFOT + PAV) ageing. An extensive research program was carried out, including functional and rheological tests in a wide range of temperatures. First, tests of stability and adhesion to various types of aggregates were carried out, demonstrating the usefulness of the proposed additives. Then, the elastic recovery and the impact of technological ageing on penetration, Fraass breaking temperature, and plasticity range were assessed. The same binder mixes were subjected to rheological tests in a wide range of technological and operational temperatures, assessing, among others, viscosity, the norm of the complex shear modulus, elastic recovery and compliance in the MSCR test, and stiffness in the bending beam rheometer. This entire class of tests was carried out for clean samples and those containing impurities, indicating their impact on individual material parameters. [ABSTRACT FROM AUTHOR]

Age is a cultural entity like race, class, and gender that must be explored deeply. The increase in the aged population all over the world by 2050 will promote serious inquiry in the field of gerontology. The issues of the aged, like ageism, old age abuse, and negative age stereotypes, need age appropriateness, the individual: physical and psychological and the social, political, and economic aspects of ageing need to be analysed to understand the phenomenon comprehensively. This study must be promoted in the postmodern, industrial, and globalised world. The central focus gerontologists and gerontological theories insist on is successful, positive, and happy ageing. Gerontological ideas review the place of older people in society, reinvent positive images of ageing, and stand for perpetuating the images. Many gerontological inquiries conclude that an individual's ageing experience is influenced by society's standards and attitude towards older people. Literature is taken as a resource to comprehend the individual experience of ageing. Gerontologists suggest attaching some goals during the later stage to gain a positive outlook on the last stage of life. This will promote successful ageing. The paper tries to explain the scope of ageing studies in the literature, identifying literary gerontology as a promising field in health sciences that will delve deep into age and ageing, and satisfy the ideals mentioned earlier. [ABSTRACT FROM AUTHOR]

A hypothesis is presented to explain how the ageing process might be influenced by optimizing mitochondrial efficiency to reduce intracellular entropy. Research-based quantifications of entropy are scarce. Non-equilibrium metabolic reactions and compartmentalization were found to contribute most to lowering entropy in the cells. Like the cells, mitochondria are thermodynamically open systems exchanging matter and energy with their surroundings—the rest of the cell. Based on the calculations from cancer cells, glycolysis was reported to produce less entropy than mitochondrial oxidative phosphorylation. However, these estimations depended on the CO2 concentration so that at slightly increased CO2, it was oxidative phosphorylation that produced less entropy. Also, the thermodynamic efficiency of mitochondrial respiratory complexes varies depending on the respiratory state and oxidant/antioxidant balance. Therefore, in spite of long-standing theoretical and practical efforts, more measurements, also in isolated mitochondria, with intact and suboptimal respiration, are needed to resolve the issue. Entropy increases in ageing while mitochondrial efficiency of energy conversion, quality control, and turnover mechanisms deteriorate. Optimally functioning mitochondria are necessary to meet energy demands for cellular defence and repair processes to attenuate ageing. The intuitive approach of simply supplying more metabolic fuels (more nutrients) often has the opposite effect, namely a decrease in energy production in the case of nutrient overload. Excessive nutrient intake and obesity accelerate ageing, while calorie restriction without malnutrition can prolong life. Balanced nutrient intake adapted to needs/activity-based high ATP requirement increases mitochondrial respiratory efficiency and leads to multiple alterations in gene expression and metabolic adaptations. Therefore, rather than overfeeding, it is necessary to fine-tune energy production by optimizing mitochondrial function and reducing oxidative stress; the evidence is discussed in this paper. [ABSTRACT FROM AUTHOR]

Horses in Great Britain are living into increasingly older age and are often regarded as friends or family members by their owner. The horse is reliant on their owner to meet their needs and this paper discusses how horse owners frame an issue that becomes a matter of veterinary concern within the context of the older horse. Qualitative methods were used to explore the experiences of owners and veterinarians. Data were collected and analysed using a grounded theory approach during the period 2019-2022. Analysis identified that owners undertook an ongoing and iterative process of assessment, monitoring and decision making in relation to the animal and any changes they observed. Matters that became a veterinary concern required the owner to formulate the issue as something that fell within the knowledge domain of the veterinarian. Veterinarians had a medicalised view of older horse health and their perspectives on socially acceptable care were shaped by their understanding of speciesspecific needs, and whether owners were providing appropriately for those needs. The formulation of a matter of veterinary concern was itself shaped by an owner's experiential knowledge of both veterinary matters and their horse. The extent to which owners felt like they and their individual horse mattered during interactions with veterinarians affected whether they adopted veterinary advice and the nature of future veterinary employment. Findings demonstrate how matters of health, disease, and the role of professionalised forms of medical knowledge, are not static but constantly changing and interacting over time. An issue that became a matter of veterinary concern was contextual, and rooted in individual relationships. The significance of veterinarian-owner interactions in shaping future consumption of veterinary health care may be underestimated. [ABSTRACT FROM AUTHOR]

The leakage current characteristic monitoring of transmission line insulators is considered a worthy technique for insulator state prediction. In this paper, the harmonic analysis of leakage current signals has been performed to analyze the composite insulator condition. Experimental studies of asymmetrically aged, fully aged, and virgin insulators have been conducted. The effects of different aging types, pollution, and humidity on leakage current components, such as harmonics and the phase differences with the applied voltage, have been investigated. The analysis of the results shows that the effect of asymmetric aging on leakage current components is non‐linear, and this non‐linearity increases with the degree of pollution. Also, the type of insulator aging can be determined by the ratio of the third‐ and fifth‐order leakage current harmonics. For instance, the classification of insulators into virgin, asymmetrically aged, and fully aged can be determined by examining the corresponding value ranges of 0–0.5, 0.5–0.9, and > 0.9, respectively. Similarly, the phase difference values of < 15% and those > 15% indicate the clean and polluted operating conditions individually. [ABSTRACT FROM AUTHOR]

Historically Black communities are frequently depicted as victims of urban conditions. However, a rich tradition of placemaking, place keeping, and community care, often led and stewarded by Black women, exists. Drawing from theories that name macrosystems that contribute to the fracturing and disruption of urban Black communities (e.g. ‘root shock‘), and strategies that attempt to heal and redress these processes (e.g. ‘urban alchemy‘), this paper examines the (re)making of place through the lens of Black older women living in lower-income, urban neighbourhoods. [ABSTRACT FROM AUTHOR]

AbstractMany tourist cities rely on walking as form of slow travel to take in the destination. Venice, the case study for this paper, is a distinct ‘walking city’, scripted into its cultural landscape along with its visitor crowds. As in other historical cities, however, crowding compromises residents’ walking mobility. This particularly affects groups that rely on proximate mobility such as older residents. This paper delves into the effects of tourism on everyday mobilities and realities of coping with change in the tourist city. It thus uncovers repercussions on ‘those remaining’ and highlights how the privilege of slowness may become a condition of disadvantage. It engages with long-term biographies, walking experiences, and the ageing process itself during an empirical study consisting of walking interviews. The findings show how tourist mobilities collide with access to spaces of social activity, essential services, and neighbourhood life. More importantly, they bring to surface how residents negotiate these hindrances and seek opportunities for mobility and wellbeing, despite older age-related challenges arising from the exclusive uptake of slow mobilities. Eventually, this paper forms a critique that discloses the collateral nature of tourism impacts on ageing in place, stuck between global mobility flows and local tourism management choices. [ABSTRACT FROM AUTHOR]

Background: The tonsils operate as a protection ring of mucosa at the gates of the upper aero-digestive tract. They show similarities with lymph nodes and participate as inductive organs of systemic and mucosal immunity. Based on the reduction of their size since puberty, they are thought to experience involution in adulthood. In this context, we have used tonsillar mononuclear cells (TMC) isolated from patients at different stages of life, to study the effect of ageing and the concomitant persistent inflammation on these immune cells. Results: We found an age-dependent reduction in the proportion of germinal center B cell population (BGC) and its T cell counterpart (T follicular helper germinal center cells, TfhGC). Also, we demonstrated an increment in the percentage of local memory B cells and mantle zone T follicular helper cells (mTfh). Furthermore, younger tonsils rendered higher proportion of proliferative immune cells within the freshly isolated TMC fraction than those from older ones. We demonstrated the accumulation of a B cell subset (CD20+CD39highCD73+ cells) metabolically adapted to catabolize adenosine triphosphate (ATP) as patients get older. To finish, tonsillar B cells from patients at different ages did not show differences in their proliferative response to stimulation ex vivo, in bulk TMC cultures. Conclusions: This paper sheds light on the changing aspects of the immune cellular landscape, over the course of time and constant exposure, at the entrance of the respiratory and digestive systems. Our findings support the notion that there is a re-modelling of the immune functionality of the excised tonsils over time. They are indicative of a transition from an effector type of immune response, typically oriented to reduce pathogen burden early in life, to the development of an immunosuppressive microenvironment at later stages, when tissue damage control gets critical provided the time passed under immune attack. Noteworthy, when isolated from such histologic microenvironment, older tonsillar B cells seem to level their proliferation capacity with the younger ones. Understanding these features will not only contribute to comprehend the differences in susceptibility to pathogens among children and adults but would also impact on vaccine developments intended to target these relevant mucosal sites. [ABSTRACT FROM AUTHOR]

Purpose: Perceptions of ageing towards the self and towards others can positively and negatively impact an older adult's mental wellbeing. This paper aims to consolidate literature examining the relationship between perceptions of ageing and depression in older adults to inform both practice and policy for older adult mental health services. Design/methodology/approach: Quantitative research articles examining perceptions of ageing and depression in older adults were identified through searches on three electronical databases, alongside forward and backwards citation searches. A total of 14 articles involving 31,211 participants were identified. Findings: Greater negative attitudes towards ageing were associated with higher levels of depressive symptoms and greater positive attitudes towards ageing were associated with lower levels of depressive symptoms or higher levels of happiness. However, the causal direction of this relationship could not be determined. Studies demonstrated that perceptions of ageing also act as a moderator in the relationship between depression and health status, hopelessness and personality traits. Future research should attempt to examine the relationship between perceptions of ageing and depression in older adults to attempt to identify the causal direction of this relationship. Originality/value: This is the only systematic review the authors are aware of consolidating literature which explores the relationship between older adults' perceptions of ageing and depression. It is hoped that these findings will be able to inform both policy and practice to improve older adults' care and support for depression. [ABSTRACT FROM AUTHOR]

Non-renewable nature and continuously increased consumptions of bitumen is a serious challenge for the development of infrastructure, especially for the constructions and maintenances of asphalt pavements. To cope with this situation, some sustainable strategies are needed. Extensive efforts have been made to improve the resilience, sustainability and circularity of asphalt pavements. Among them, the utilisation of bio-based materials is one of the most promising measures. This paper systemically reviewed the state-of-theart knowledge in the development of bio-bitumen. Wood-based oils, waste cooking oils and manure-based bio-bitumen were selected as the review objectives. It was revealed that all bio-based oils currently being used are more suitable for serving as additives like softeners, rejuvenators, or modifiers rather than as alternative of binders. One of the most promising utilisations of biooils is as rejuvenators, potentially antioxidants as well. Incorporating polymers with bio-oils is another feasible practice to improve the performance of biobitumen. Causation should be taken when producing bio-based bitumen since compatibility might have some kind of influence on the performance and this issue should be addressed carefully. [ABSTRACT FROM AUTHOR]

Purpose: A positive leisure attitude among older adults may have a beneficial effect on psychological well-being, both directly and indirectly by fostering a more positive perception of one's health. This paper presents a correlational design that explores associations among leisure attitude, self-rated health, and psychological well-being, and analyzes the potential moderating role of gender in these relationships. Patients and Methods: The sample was selected using simple random probability sampling (N= 409; 61.9% female; Mean age = 72.9; SD = 8.43¸ Range of age 53 to 93 years). Diverse sociodemographic information was collected, and leisure attitudes, self-perceived health, and psychological well-being (positive affect and emotional ties) were assessed. Results: The results revealed a positive effect of leisure attitude on self-rated health and psychological well-being, with self-rated health fully mediating the association between the behavioral component of leisure attitude and psychological well-being. Furthermore, the moderating effect of gender on the relationship between self-rated health and psychological well-being was stronger among men. Conclusion: Positive cognitive and emotional perceptions of leisure among older adults seem to benefit psychological well-being and improve self-rated health, thereby contributing to healthy ageing. [ABSTRACT FROM AUTHOR]

Arts-based health research (ABHR) artefacts provide a means for exploring the experiences of diverse populations through using the arts. They are useful for reaching audiences beyond academia, promoting empathy, showcasing under-represented voices and offering insights into human experience not captured by more traditional research methods. To augment the growing usage of ABHR, there have been calls for more studies examining how ABHR artefacts are being developed. This helps dispel uncertainty about ABHR processes, provide criteria for judgement of quality and show others how they might proceed on a similar path. The purpose of this paper is to add to the ABHR body of knowledge by offering the exemplar Golden Years, a work of fiction with themes pertaining to ageing and mortality. To achieve this, the authors will describe their use of practice-based research (PBR), which centres the making of the artefact at the core of the research. The paper includes an exegesis in which the authors explain how tacit knowledge, feedback from peers and collaboration were used as methods. They also place Golden Years within a critical framework based on the principles of the bi-cultural research group Te Arai Palliative Care and End of Life Research Group in New Zealand. [ABSTRACT FROM AUTHOR]

Background: Sexual health research rarely includes older age groups and the sexual health needs of older Australians are not well understood. Older adults are online in increasing numbers; however, internet surveys involving samples of older adults and sensitive topics remain uncommon. In 2021, we developed an online survey to explore the sexual health needs of Australians aged 60+ years. We describe here survey recruitment and sample obtained, comparing it with national population data (Australian Bureau of Statistics) and the sample of the similar 'Sex, Age and Me' study from 2015. Methods: We recruited 1470 people with a staggered three-phase strategy: (1) emails to organisations and community groups; (2) paid Facebook advertising; and (3) passive recruitment. Half (50.6%) found out about the study via an organisation or group and just over a third (35.7%) from Facebook. Results: The sample was equally balanced between men (49.9%) and women (49.7%) (0.4% other gender identities). Participants were aged 60–92 years (median 69 years) with all Australian States/Territories represented. Facebook recruits were younger, more likely to be working rather than retired, and more likely to live outside a major city, than those recruited by other means. Conclusions: Using the recruitment methods described, we successfully obtained a diverse and fairly representative sample of older Australians within the constraints of a convenience sample and on a modest budget. This research sheds light on ways to engage an under-served demographic in sexual health research. Our experience shows that many older adults are amenable to recruitment for online sexual health surveys using the approaches outlined. Older adults' sexual health is not well understood and older Australians may have unmet sexual health needs. To better address the sexual wellbeing of older adults, we need to be able to effectively recruit them for sensitive health research. This paper outlines the recruitment and sample of the SHAPE2 sexual health study of Australians aged 60 years and over. It demonstrates that sexual health matters to many older adults and that they are willing to engage in online sexual health surveys. [ABSTRACT FROM AUTHOR]

Background: The global population is ageing rapidly and there is a need for strategies to promote health and wellbeing among older adults. Nutrition knowledge is a key predictor of dietary intake; therefore, effective educational programmes are urgently required to rectify poor dietary patterns. Digital health technologies provide a viable option for delivering nutrition education that is cost‐effective and widely accessible. However, few technologies have been developed to meet the unique needs and preferences of older adults. Objective: The aim of this study was to explore technology use among older adults and qualitatively determine the content needs and design preferences for an online nutrition education resource tailored to older adult consumers in Australia. Methods: Twenty adult participants aged 55 years and older (95% female) participated in one of four 2‐h participatory design workshops. In each workshop, prompted discussion questions were used to explore participants' technology use and preferences and to explore content needs and design preferences for an online nutrition education resource specific to older adults. Results: All participants were regularly using a range of different devices (e.g., smartphones, tablets and computers) and reported being comfortable doing so. Participants wanted a website that provided general nutrition information, practical advice and recipes. To enhance engagement, they sought a personalised resource that could be adjusted to suit their needs, included up‐to‐date information and allowed for easy sharing with others by exporting information as a PDF. Conclusions: Participatory design methods generate new knowledge for designing and tailoring digital health technologies to be appropriate and useful for the target audience. Specifically, older adults seek an online resource that has large and simple fonts with clear categories, providing them with practical advice and general nutrition information that can be personalised to suit their own needs and health concerns, with the option to export and print information into a paper‐based format. Patient or Public Contribution: Older adults actively participated in the development and evaluation process to generate ideas about potential features, functionalities, uses and practicalities of an online nutrition education resource. [ABSTRACT FROM AUTHOR]

Introduction: This paper addresses the broader issue of elder abuse and seeks to analyse how victims and non-victims of abuse connect and explain the perception of ageing and the phenomenon of violence against older people. Methods: A qualitative study was conducted based on evidence gathered through 45 semi-structured interviews with people aged 60 or above who are part of the Portuguese EPIPorto population cohort. The interviews were analysed using grounded theory. Results/discussion: The results show that respondents link the ageist narratives that exist in our societies to the prevalence and naturalisation of violence against older people, that the risk of abuse increases with the weakening of family support networks, and that abuse is both a manifestation of asymmetrical power relations between victims and perpetrators and a severe violation of human rights. The findings also highlight the need to broaden the concept of violence against older people to include offences in the public sphere and not just in the context of the family and institutions. [ABSTRACT FROM AUTHOR]

Background: Although age is the biggest known risk factor for dementia, there remains uncertainty about other factors over the life course that contribute to a person's risk for cognitive decline later in life. Furthermore, the pathological processes leading to dementia are not fully understood. The main goals of Insight 46—a multi-phase longitudinal observational study—are to collect detailed cognitive, neurological, physical, cardiovascular, and sensory data; to combine those data with genetic and life-course information collected from the MRC National Survey of Health and Development (NSHD; 1946 British birth cohort); and thereby contribute to a better understanding of healthy ageing and dementia. Methods/Design: Phase 1 of Insight 46 (2015–2018) involved the recruitment of 502 members of the NSHD (median age = 70.7 years; 49% female) and has been described in detail by Lane and Parker et al. 2017. The present paper describes phase 2 (2018–2021) and phase 3 (2021–ongoing). Of the 502 phase 1 study members who were invited to a phase 2 research visit, 413 were willing to return for a clinic visit in London and 29 participated in a remote research assessment due to COVID-19 restrictions. Phase 3 aims to recruit 250 study members who previously participated in both phases 1 and 2 of Insight 46 (providing a third data time point) and 500 additional members of the NSHD who have not previously participated in Insight 46. Discussion: The NSHD is the oldest and longest continuously running British birth cohort. Members of the NSHD are now at a critical point in their lives for us to investigate successful ageing and key age-related brain morbidities. Data collected from Insight 46 have the potential to greatly contribute to and impact the field of healthy ageing and dementia by combining unique life course data with longitudinal multiparametric clinical, imaging, and biomarker measurements. Further protocol enhancements are planned, including in-home sleep measurements and the engagement of participants through remote online cognitive testing. Data collected are and will continue to be made available to the scientific community. [ABSTRACT FROM AUTHOR]

Power systems comprise different electrical, electronic, electromechanical and electrochemical components. Adequacy, security, resilience and reliability represent essential requirements for grids functioning mode. The evaluation of such aspects can constitute a delicate task in the presence of heterogeneous components. Focusing on reliability assessment, several Reliability Prediction Models are available. They are suitably applied according to the type of component under evaluation. The lack of homogeneity of these models forbids the comparison of performance and identification of unreliable systems and grid section. This paper aims to face the mentioned issue proposing a unique reliability assessment methodology able to characterize different equipment connected to radial/meshed/ring grids and subjected to different stressing and ageing factors. It is customized for electrical lines, transformers, circuit breakers, converters and renewables plants. Component and systemic key indices are calculated. Furthermore, a novel "load feeding reliability" indicator is evaluated for providing information about the supply reliability of a specific load. This index is meaningful for the identification of unreliable grids, microgrids and systems. Such an approach can contribute to improve power systems design, planning and control. The proposed method is integrated in a software application implemented for grid reliability assessment. The obtained results are reported for an urban grid including an underground transportation area. [ABSTRACT FROM AUTHOR]

Background: Vocabulary scores increase until approximately age 65 years and then remain stable or decrease slightly, unlike scores on tests of other cognitive abilities that decline significantly with age. Aims: To review the findings on ageing‐related changes in vocabulary, and to discuss four methodological issues: research design; test type; measurement; and vocabulary ability as a proxy for general intelligence. Main Contribution: A discussion of cross‐sectional and longitudinal research designs shows that cohort membership accounts for some but not all ageing‐related changes in vocabulary, and that drop‐out and test–retest effects do not alter conclusions regarding these changes. Test type affects age trends in vocabulary, and if researchers use only one test, they should choose a multiple‐choice synonym test. While some authors suggest that vocabulary tests do not measure the same underlying ability in younger and older adults, more research of this suggestion is needed. A brief examination of the use of vocabulary ability as a proxy for general intelligence in healthy ageing and for premorbid abilities in dementia indicates that such practice is often questionable. Conclusions: Vocabulary knowledge increases through the mid‐60s regardless of measurement method. However, there is little information on how word knowledge serves other verbal skills in old age, how and when adults learn new words, or how much exposure is necessary for meanings to remain in storage for a lifetime. Research of these issues may require new methodologies, as well as novel theoretical accounts of ageing‐related effects on vocabulary. WHAT THIS PAPER ADDS: What is already known on this subject: Unlike many cognitive abilities that decline with ageing, vocabulary knowledge continues to increase until approximately age 65, and then remains stable or decreases slightly. These findings have been replicated in different research designs and across languages. What this paper adds to existing knowledge: The article presents a summary of findings on changes in vocabulary across adulthood, and a discussion of four key methodological issues: research design, test type, measurement, and the use of vocabulary ability as a proxy for general intelligence. What are the potential or actual clinical implications of this work?: To better understand changes in vocabulary knowledge across adulthood, clinicians must be aware of methodological considerations that affect the field. Such considerations have direct clinical implications regarding the choice of vocabulary tests and their use as a proxy for other abilities in both healthy older adults and in individuals with dementia. [ABSTRACT FROM AUTHOR]

Background: The paper deals with older workers and the issue of combining informal care for family members with paid employment, which is increasingly important in the light of socio-demographic changes in society - namely demographic ageing and the lengthening of working life. The topic is highly relevant to the group of non-medical healthcare professions studied, as they combine care in the professional and domestic spheres. Purpose of the research: The aim of the research is to point to gender inequalities in how the combination of formal and informal care impacts the work and personal spheres of (pre-) retirement-age nonmedical healthcare workers. Methods: The article is based on the analysis of 36 qualitative interviews with nonmedical healthcare workers in Czechia. We used thematic analysis and approached the issue of (un)doing gender from a social constructivist perspective. Results: The results suggest that women and men in nonmedical healthcare professions face differences in relation to the double care burden in older age. Women are more likely to be affected by a combination of dual care, which has implications for their workload, financial remuneration, etc., whereas men are under greater pressure to perform at work, which becomes increasingly difficult at older ages. Conclusion: Gendered character of double care has implications for gender inequalities in mental and physical health and for the gender pension gap. [ABSTRACT FROM AUTHOR]

Using aluminium metal matrix nanocomposites has recently gained increased attention in the industry due to their high strength and ductility. In this paper, TiO2 nanoparticles in volume percentages of 5 wt. % were added to the AA2024 alloy using the stir casting method. Using a novel powder injection system, TiO2 nanoparticles with an average particle size of 30 ± 5 nm was added to the matrix. The influence of TiO2 content on the fatigue life before and after heat treatment was studied. The results showed the fatigue properties of AA2024 with TiO2 nanoparticles increased after heat treatment. The optimum improvement in fatigue properties was obtained at 5 wt. % TiO2 after heat treatment, with an improving fatigue life in 14.71% compared with sample based. This is due to an increased number of fine precipitates besides its uniformly distributed after heat treatment. The fatigue life of the composite materials with added nanoparticles was investigated using a finite element-based ANSYS workbench. There was a good match between what happened in the experiments and what happened to the numerical fatigue strength. For the composite materials, the difference between the experimental and numerical values of fatigue strength was not greater than 4% for the matrix. The results also, indicated that, after ageing, the precipitate-free zone at the inter-dendritic zone disappeared or became smaller. However, after adding 5 wt. % of titanium and, also, performing heat treatment, it is not possible to precipitate the Al2CuMg precipitates, and, instead of it, the Al3TiCu and Al7TiCu phases precipitates have been formed. [ABSTRACT FROM AUTHOR]

The COVID-19 crisis has accelerated the adoption of digital content and services, particularly in Italy, a country historically slower in embracing communication technologies (European Commission, 2023). Mobility restrictions have hastened the digitalization of daily life, including communication, entertainment, and utility services (Auditel & Censis, 2022). Older individuals, traditionally less digitally proficient, have faced challenges adapting to this rapid digitalization (Rolandi et al., 2020, NIHR, 2022). However, early evidence suggests that this digital acceleration may not be sufficient to bridge the digital divide, especially among older populations (Litchfield et al., 2021, Colombo et al., 2023). This paper explores the changes occurring in the relationship between older people and new technologies based on data provided by longitudinal qualitative research, which involved a panel of 40 over-65 residents in the Lodigiano region, the first red zone – affected by the pandemic and its restrictions – in Europe. This contribution aims to highlight how active seniors have experienced a transformation in their approach to technology from the onset of the pandemic (2020) to the present day. The interviews were transcribed verbatim and then imported into the NVivo application for content analysis. Grounded Theory (Glaser & Strauss, 1967) was utilized, involving several stages. The analysis also aimed to formulate ideal types for interpreting the diverse approaches to digital adoption among the older population. From the present study, it emerged that the rapid process of digitalization during the COVID-19 pandemic has not effectively bridged the digital divide, but rather widened it. The swift digitalization of public services highlights the challenges in ensuring inclusivity, especially for older individuals. While digitalization can benefit those with support networks, it further marginalizes isolated seniors. Policy-makers need to consider existing caregiver networks to promote digital inclusion among older individuals. [ABSTRACT FROM AUTHOR]

This paper is a summary of key presentations from a workshop in Iceland on May 3– 4, 2023 arranged by Aarhus University and with participation of the below-mentioned scientists. Below you will find the key messages from the presentations made by:Professor Jan Vandenbroucke, Department of Clinical Epidemiology, Aarhus University, Emeritus Professor, Leiden University; Honorary Professor, London School of Hygiene & Tropical Medicine, UKProfessor, Chair Henrik Toft Sørensen, Department of Clinical Epidemiology, Aarhus University and Aarhus University Hospital, DenmarkProfessor David H. Rehkopf, Director, the Stanford Center for Population Health Sciences, Stanford University, CA., USProfessor Jaimie Gradus, Department of Epidemiology, School of Public Health, Boston University, Boston, Massachusetts, USProfessor Johan Mackenbach, Emeritus Professor, Department of Public Health, Erasmus University Rotterdam, HollandProfessor, Chair M Maria Glymour, Department of Epidemiology, Boston University School of Public Health, Boston University, Boston, Massachusetts, USProfessor, Dean Sandro Galea, School of Public Health, Boston University, Boston, Massachusetts, USProfessor Victor W. Henderson, Departments of Epidemiology & Population Health and of Neurology & Neurological Sciences, Stanford University, Stanford, CA, US; Department of Clinical Epidemiology, Aarhus University, Aarhus, DK [ABSTRACT FROM AUTHOR]