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    Structural change and its discontents

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    This paper explores the relationship between social discontent and labour market dynamics, particularly with respect to the creation and destruction of stable jobs. By bridging studies on discontent with the literature on structural dynamics, the paper conceives the former as a signal that some countries or regions are experiencing a trajectory of structural change characterized by economic deprivation and social inequality, rooted into limited access to secure and quality jobs. If not properly addressed by policymakers to achieve greater cohesion, this trajectory may lead to irreversible economic decline. Focusing on Italy, results show that jobs destruction amplifies support for anti-elite parties while the creation of secure jobs mitigates social discontent. Policy implications highlight the need for labour market, welfare and education measures fostering structural change trajectories that are sustainable, i.e., where the interests of both vulnerable and well-off socio-economic groups are reconciled in the definition of societal policy goals

    Prediction of maximum voluntary ventilation based on forced expiratory volume in athletes

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    Objective: Maximum-voluntary-ventilation (MVV) is the maximal volume of which an individual can move by voluntary effort in one minute. It is possible that the first second forced-expiratory-volume (FEV1) could be more to reliable assess respiratory muscle endurance to estimate MVV. Methods: For this aim, 422 athletes (Age 22.9 ± 8.5 years; 98/324 - females/males) were performed a MVV, and FEV1 measurements. Results: The coefficient of determination was R2 = 0.594 between MVV and FEV1, with a predictive equation for overall participants: MVV = (FEV1 × 33.5)+12.7. The robust regression showed a good multiple correlation coefficient (R = 0.815) with the coefficient of determination R2 = 0.661 for the model including FEV1, age and gender as predictors. These equations MVV = (FEV1 X 27.3)+(Age(y) × 1.1)+20.5 and MVV = (FEV1 × 27.3)+(Age(y) × 1.1) were derived for male and female, respectively. Conclusion: FEV1 can predict MVV in different athletes with greater accuracy when stratified per gender. Therefore, this new approach can be used in a short all-out test without stress of the respiratory muscle to predict MVV in athletes

    Current state-of-the-art of adrenal surgery in Italy: the cancer risk in surgical adrenal lesions (CRISAL) survey

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    Adrenalectomies are growing worldwide because of the frequent diagnosis of incidentaloma and the use of minimally invasive surgery (MIS). The factors used to identify a malignant lesion and the best surgical technique are uncertain. In this context, the definition of high-volume center and expert surgeon is under debate. The Italian Society of Endoscopic Surgery and New Technologies (SICE) developed a nationwide survey to investigate the state-of-the-art of adrenal surgery in Italy. A web-based survey comprising 37 questions was developed and distributed to Italian surgeons involved in adrenal surgery. Two hundred forty-eight answers were analyzed. Consensus was reached among the survey participants regarding local infiltration (83%) and rapid growth of the lesion (81%) as markers of malignancy. Nearly 30% of the participants used MIS in case of malignant adrenal lesions. The lateral (50%) and anterior transperitoneal (44%) approaches were the most common among Italian surgeons. Approximately 40% of participants believe that 20-40 adrenalectomies/year are needed to define an expert surgeon and at least 20 procedures/year to define a high-volume center. Approximately half of participants performed < 10 adrenalectomies/year in centers with a median volume < 10 procedures/year. Based on participant feedback, this survey highlights local infiltration and rapid growth as the most significant markers of malignant adrenal lesions. While open adrenalectomy remains the gold standard for suspected malignant lesions, nearly 30% of the participants practice MIS even in these cases. The lateral and anterior transperitoneal approaches emerge as the most familiar for Italian surgeons. A substantial proportion of Italian patients with adrenal lesions undergo surgery performed by surgeons with an annual case volume < 10 procedures, at centers with a low annual volume of adrenalectomies. Moreover, there is a lack of standardized definitions for 'expert surgeon' and 'high-volume center' in this context

    Comparison of aggregation methods used in online reviews: a critical analysis.

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    With digitalization, online reviews have become a crucial component of consumer decisions and are an important source of feedback on products and services. Users can make informed choices using online review systems such as e-commerce platforms, social media, and others. However, the collection and analysis of these reviews raises a number of questions regarding reliability, representativeness and accuracy. Since they directly influence users' choices, the methods used to aggregate review scores are extremely important. In this article, we explore the most common aggregation methods for rating online reviews on the Amazon platform, with a particular focus on the arithmetic mean. Although these methods are easy to implement, they do not always accurately reflect the overall quality of a product. We then critically analyze how more sophisticated approaches can minimize some of the limitations of the mean, such as the so-called recency bias; propose more robust solutions and alternative approaches that can provide a more accurate representation of the overall rating, improving the quality of aggregated ratings

    Sarcopenia and Its Impact on Sexual Health: A Systematic Review

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    Sarcopenia is increasingly recognised for its detrimental effects on functional status and quality of life. When combined with obesity, in a condition known as sarcopenic obesity, these effects are further exacerbated by metabolic and hormonal dysfunctions. In this scenario, emerging evidence suggests that these conditions may also negatively impact sexual health. To explore this relationship, we conducted a systematic review (PROSPERO registration: CRD42025646427). Out of 943 identified articles, only seven met the eligibility criteria. The majority of studies, mainly cross-sectional studies conducted in older men, except one, reported a strong association between sarcopenia (or its components) and sexual dysfunctions, particularly erectile dysfunction. However, significant heterogeneity in diagnostic criteria and the limited number of studies focusing on women lead to non-conclusive results. Further longitudinal studies with larger, standardised cohorts are needed to clarify the underlying mechanisms, establish causal relationships, and develop tailored interventions for optimised treatment. Finally, this systematic review allows more attention to be paid to a topic that has really been little discussed and lays the groundwork for soliciting new insights, particularly in women

    Metrological Characterization of a Jump Height Measurement Procedure Based on Inertial Sensors

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    Inertial measurement units (IMUs) have become increasingly valuable tools for monitoring human movements, offering compact and portable solutions for athletic performance analysis. This study aims to metrologically characterize the K-AI wearable device for measuring vertical jump height in professional athletes. The authors developed and validated an algorithm using the K-AI wearable IMU device (K-Sport, Fano, Italy) with data collected on non-athletes and professional basketball players. The jump height measurements obtained from the vertical acceleration of the IMU device were compared to a reference system using video analysis with the Nikon D7200 camera. While the study included primarily non-athletes, it also involved professional basketball players to evaluate the performance of the algorithm in real-world sports environments. The results indicate a mean residual difference of -0.055 m and a standard deviation of 0.068 m, with a strong positive correlation between the two devices (ρ=0.88). However, the Bland-Altman analysis highlights a linear systematic error that increases at greater jump height. This trend suggests that the IMU device estimates lower jump height values than the reference system. This limitation underscores the need for a calibration model to correct systematic deviations to improve the device applicability in the athletic performance assessment

    Experimental design to extract natural compounds from Calendula flowers

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    The genus Calendula grows along the coasts of the Mediterranean Sea, including Calendula officinalis (Linn.), Calendula arvensis (Linn.), and Calendula maritima (Guss). Among these species, only the first one is studied in detail for bioactive molecules, pharmacological properties, and it is therefore considered for commercial product as medicines and cosmetics. In this study, ultrasound-assisted extraction (UAE) of C. maritima flowers has been designed, using a hydro-alcoholic mixture at different time points. The extracts were solvent partitioned and partially purified by chromatographic separation. A bioassay-guided separation was performed, using thin-layer chromatography (TLC), allowing the identification of the main bioactive classes present: phenolics and saponins. These results underline C. maritima as a potential and valuable reservoir of bioactive molecules for human benefit. In addition, they contribute to a sustainable model for the conservation of the biodiversity of this species

    Job Mobility, Commuting, and Moving (Chapter 10)

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    Until now, job mobility was excluded by the analysis because only one labour market was considered. Job mobility, indeed, refers to people moving from one place to another for work reasons. This chapter, therefore, develops a simple spatial version of the basic search and matching model that considers two labour markets located in two countries: the country of residence and other nearby countries. In this way, the chapter can deal with two key factors affecting job mobility: commuting and moving (relocation). By introducing the housing search and matching process (described in Chapter 2), moreover, the model clearly shows the close relationship between moving and the so-called “housing liquidity issue”

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