Search Results (58)

Maintaining teat-end integrity in dairy cows is essential to preventing intramammary infections (IMIs) in dairy cows, yet the relationship between hyperkeratosis, teat conformation, and mammary health remais underexplored. This study evaluated the relationship between teat-end hyperkeratosis, teat conformation traits, microbial colonization, and somatic cell count (SCC) in milk from 170 cows on ten commercial dairy farms in Santa Catarina, Brazil. During two farm visits, milk and teat-end swab samples from paired teats (one with hyperkeratosis, one without) were analyzed for microbial growth and SCC. SCC data were transformed into somatic cell scores (SCS). Results showed no significant association between hyperkeratosis and mastitis microorganisms, although environmental microorganisms tended to be more frequent in hyperkeratotic teats (p = 0.0778). Major microorganisms in milk were significantly associated with higher SCC (p = 0.0132). No relationship was observed between teat conformation traits and hyperkeratosis. These findings suggest that hyperkeratosis may subtly influence the teat canal to environmental bacterial colonization, underscoring the need for improved milking management practices to minimize hyperkeratosis and associated mastitis risks. Full article

The objective of this study was to evaluate the effect of two limestone granulometries (0.568 and 1.943 mm) and different levels of vitamin D3 (12.5 g and 25 g) on the thermoregulatory and behavioral responses of replacement pullets. Lohman brown lineage pullets (270 birds), with an average weight of 639.60 g ± 6.05 and an initial age of eight weeks, were used in this study. The experimental design adopted was completely randomized in a 2 × 2 × 2 + 1 factorial arrangement (2 limestone granulometries × 2 levels of vitamin D3 × 2 shifts). The respiratory rate (RR), cloaca temperature (CT), feather surface temperature (FST) and featherless surface temperature (FLST) were higher in the afternoon (p < 0.05), while the thermal gradient (TG) was higher in the morning (p < 0.05). Birds supplemented with different limestone granulometries and different levels of vitamin D3 showed similar thermoregulatory and behavioral responses. The “eating” activity was more frequent in the morning, while in the afternoon, the birds remained seated for longer (p < 0.05). The dietary supplementation with different limestone granulometries and vitamin levels did not impair thermoregulation even at higher temperatures. Regardless of the level of vitamin D3, they showed a better expression of welfare-related behavioral activities in the morning in the semiarid region. Full article

Background/Objectives: Hypertension, diabetes, and cancer are three prevalent chronic conditions with distinct etiologies and significant global health impacts. This study aimed to explore the diverse impacts of different chronic illnesses on health behaviors and psychological well-being, with a focus on identifying and addressing the unique challenges faced by individuals with hypertension, diabetes, and cancer. It was hypothesized that health behaviors and psychological well-being would differ significantly among individuals with hypertension, diabetes, and cancer, reflecting the distinct demands and psychosocial impacts of each condition. Methods: The database of Americans’ Changing Lives, Wave 6, including 767 participants, was used (56.1% hypertension, 20.8% diabetes, and 19.9% cancer cases). Variables concerning physical and mental health issues were chosen. Descriptive statistics summarized the data. Chi-squared and t-tests assessed associations and group differences, with effect sizes reported. Logistic regression examined predictors of hypertension, diabetes, and cancer. Sensitivity analyses excluded outliers. Results: Hypertensive individuals are more likely to show cognitive impairment and unhealthy behaviors, including poor self-rated health, higher BMI, lower physical activity, and altered alcohol use. Risk increases with age, widowhood, retirement, hospital admissions, and poor mental health, while more emergency room or doctor visits slightly reduce it. People with diabetes experience greater depressive symptoms, hopelessness, and financial stress. They also tend to have poorer self-rated health, higher BMI, and less physical activity. Risk is higher for separated individuals and lower for females. Psychological distress is a key factor, while age, employment, and healthcare use show minimal influence. Cancer is linked to chronic stress, poorer perceived health, and mental health challenges. Risk is higher among older adults and those who keep house. Poor self-rated health, high BMI, low fruit and vegetable intake, and psychological distress increase risk, but healthcare use is not a strong predictor. Conclusions: While different chronic illnesses present distinct challenges to health behaviors and psychological well-being, they also share common features-such as increased stress and lifestyle disruptions-underscoring the importance of both tailored and cross-cutting interventions to effectively support individuals across conditions. Full article

Binge-watching has become a dominant mode of media consumption, yet its psychological underpinnings remain insufficiently explored. This study investigates the influence of dark triad personality traits, sociodemographic factors, and TV series preferences on binge-watching behavior. A Portuguese version of the Binge-Watching Engagement and Symptoms Questionnaire (BWESQ) was validated using a confirmatory factor analysis (CFA), demonstrating strong psychometric properties. Measurement invariance was confirmed across genders through a multigroup CFA, testing configural, metric, scalar, and error variance levels. Model reliability, convergent validity, and discriminant validity were assessed using Cronbach’s alpha, composite reliability, and the average variance extracted (AVE). Multiple linear regression analyses identified significant predictors of binge-watching, including gender, age, professional status, TV series preferences, Machiavellianism, and psychopathy. These findings underscore the role of personality traits and demographic factors in shaping binge-watching behavior, offering insights that may inform psychological interventions to prevent excessive or problematic viewing patterns. Full article

This study evaluated the effects of adding the autochthonous cultures Limosilactobacillus mucosae CNPC007 (LM) and Lactiplantibacillus plantarum CNPC003 (LP), originally isolated from goat milk and goat cheese, respectively, on microbiological safety, microbiota composition (analyzed through 16S rRNA gene metataxonomic sequencing), and biogenic amine (BA) production in artisanal goat (coalho) cheese made from raw or pasteurized milk during 60 days of ripening at 10 °C. Six types of cheese were produced, varying in milk treatment (raw or pasteurized) and the presence or absence of LP or LM cultures. Adding either LP or LM significantly modulated the microbiota, favoring Streptococcus dominance and reducing overall bacterial diversity compared to non-inoculated cheeses. Raw milk cheeses with added autochthonous cultures exhibited a microbial profile like pasteurized cheeses, suggesting a homogenizing effect on the microbiome. Both cultures effectively reduced microbial load in raw milk cheeses after 20 days, reaching levels comparable to pasteurized cheeses by the end of ripening. Although BA concentrations increased over time, all samples remained within safe limits. Cheeses with LP addition exhibited lower BA levels, suggesting a modulating effect on their biosynthesis. Histamine concentrations were higher in raw milk cheeses with added cultures but remained well below hazardous levels. These findings suggest that incorporating either LP or LM strains is a promising strategy for enhancing the microbial safety and standardization of artisanal goat cheese while preserving its traditional characteristics. Full article

Introduction: Social sustainability is deeply connected to the well-being of marginalized groups, and it is important to highlight how mental health impacts the social inclusion of homeless individuals, particularly veterans. Homelessness is a growing global issue, disproportionately affecting U.S. veterans, with mental health challenges playing a significant role in its onset and perpetuation. Purpose: This study aims to compare the sociodemographic and clinical characteristics of homeless veterans and non-veterans in the U.S. Method: Using public data (N = 6295), this quantitative study applies descriptive and inferential statistical analyses. Results: Homeless veterans are more likely than non-veterans to be older, male, and identify as Caucasian or African American. They are more frequently high school graduates or have higher education, and report being divorced, widowed, married, or in varied employment statuses (full-time, part-time, or unemployed). Veterans exhibit higher rates of severe mental illnesses, schizophrenia, trauma- and stressor-related disorders, ADHD, bipolar disorder, personality disorders, depression, anxiety, and substance or alcohol use disorders. However, they are less likely than non-veterans to report substance-induced disorders, intoxication, dependence, or abuse involving cocaine, cannabis, opioids, and other substances. Conclusions: Psychosocial interventions for homeless veterans should prioritize mental health-related concerns, whereas efforts for homeless non-veterans should focus on addressing substance use. Future research should develop tailored interventions, explore the sociodemographic factors influencing homelessness, and investigate the interplay between trauma, mental health, and substance use. Addressing these issues can contribute to a more resilient, inclusive, and sustainable society by providing long-term support and integration opportunities for those most affected. The novelty of this study lies in distinguishing between mental health issues prevalent in veterans and substance use disorders more common in non-veterans, offering insights for tailored interventions. It also connects these findings to social sustainability, suggesting that addressing these issues can promote a more inclusive and resilient society. Full article

Alzheimer’s disease (AD) places a profound global challenge, driven by its escalating prevalence and the multifaceted strain it places on individuals, families, and societies. Family caregivers (FCs), who are pivotal in supporting family members with AD, frequently endure substantial emotional, physical, and psychological demands. To better understand the determinants of family caregiving strain, this study employed machine learning (ML) to develop predictive models identifying factors that contribute to caregiver burden over time. Participants were evaluated across sociodemographic clinical, psychophysiological, and psychological domains at baseline (T1; N = 130), six months (T2; N = 114), and twelve months (T3; N = 92). Results revealed three distinct risk profiles, with the first focusing on T2 data, highlighting the importance of distress, forgiveness, age, and heart rate variability. The second profile integrated T1 and T2 data, emphasizing additional factors like family stress. The third profile combined T1 and T2 data with sociodemographic and clinical features, underscoring the importance of both assessment moments on distress at T2 and forgiveness at T1 and T2, as well as family stress at T1. By employing computational methods, this research uncovers nuanced patterns in caregiver burden that conventional statistical approaches might overlook. Key drivers include psychological factors (distress, forgiveness), physiological markers (heart rate variability), contextual stressors (familial dynamics, sociodemographic disparities). The insights revealed enable early identification of FCs at higher risk of burden, paving the way for personalized interventions. Such strategies are urgently needed as AD rates rise globally, underscoring the imperative to safeguard both patients and the caregivers who support them. Full article

This study explores the relationship between emotional labor and burnout, focusing on the moderating role of conflict management strategies. A total of 233 employees from diverse sectors in Portugal participated in this cross-sectional investigation. We employed the Emotional Labor Scale (ELS) and the Oldenburg Burnout Inventory (OLBI) to quantitatively assess emotional labor and burnout levels. Additionally, the study examined conflict management practices in the workplace using the Conflict Management Strategies Assessment Scale (ROCI-2). The findings reveal that participants reported high emotional labor and burnout levels and a positive correlation between these constructs. As expected, conflict management strategies were found to moderate this relationship. Additionally, participants reported employing collaborative approaches as the most frequent conflict management strategy. These results underscore the urgent need for organizations to implement targeted conflict management training programs and psychological and emotional support initiatives to alleviate the adverse effects of emotional labor on burnout. By fostering healthier workplace environments, organizations can enhance employee well-being and productivity. Full article

Objective: This study aims to adapt the Fear-of-Intimacy Scale for the Portuguese population and examine its association with sociosexual orientation, as measured by the Sociosexual Orientation Inventory, highlighting the relevance of this association as a public health issue. Methods: The Fear-of-Intimacy Scale was validated through confirmatory factor analyses. A multigroup analysis, employing confirmatory factor analysis, was conducted to evaluate the consistency of the Fear-of-Intimacy Scale across individuals in and out of romantic relationships. The reliability of the model was assessed using various indicators, including Cronbach’s alpha, McDonald’s omega, composite reliability, the average variance extracted (AVE), and the square root of the AVE. Results: The results indicated robust psychometric properties for the Fear-of-Intimacy Scale, with a well-fitting model identified. Configural, metric, and scalar invariance related to being in a romantic relationship or not were established; however, error variance invariance was not achieved. Although most dimensions of the two instruments displayed positive and significant relationships, the correlation values were generally modest. Conclusion: The findings underscore the importance of understanding the relationship between fear of intimacy and sociosexual orientation within the Portuguese context as a significant public health issue. Adapting the Fear-of-Intimacy Scale enables culturally sensitive research and supports clinical interventions aimed at improving relational and psychological well-being, thereby addressing broader public health challenges. Full article

Background: The study evaluated the effects of resistance exercise training and açaí supplementation on cardiac parameters in hypertensive animals. Methods: For this study, rats from the Wistar and SHR lines (spontaneously hypertensive rats) were used. The animals were divided into 5 groups: Wistar Control (C); Control Hypertensive (H); Trained Hypertensive (HT); Hypertensive and Supplemented with Açaí (HA); and Hypertensive Trained and Supplemented with Açaí (HAT). Resistance exercise training was carried out through climbing. The supplemented groups received 3 g of açaí/kg of body mass. The animals’ systolic blood pressure (SBP), body mass, and physical test were measured at the beginning and end of the intervention. At the end, an echocardiographic analysis was performed. Histological analysis and oxidative stress of the LV were performed. Results: It was found that hypertensive animals showed an increase in SBP, and the treatments reduced this parameter. The trained groups achieved higher values of maximum carrying load. Hypertension increased the dimension of the left ventricular free wall in diastole and reduced ejection and shortening fractions. The trained groups showed improvement in ejection and shortening fractions. The H group increased the proportion of extracellular matrix and reduced the proportion of cells, with the HAT group attenuating this change. Cell diameter was greater in group H, and all treatments reduced this parameter. Hypertension increased the concentration of malondialdehyde and decreased catalase activity in LV. The treatments managed to mitigate this damage. Conclusions: It is concluded that the treatments managed to generate positive cardiovascular adaptations, and their combination enhanced these effects. Full article

This study aims to validate the impact of sociodemographic factors and differentiate the influence of social variables on the correlation between the number of years of formal education an individual has and the time they allocate to internet usage. To achieve this, we utilized a publicly available database, extracting relevant indicators for our investigation. Subsequently, we conducted analyses involving associations, regressions, and moderations among the variables under scrutiny. The results revealed statistically significant variations in daily internet usage time across different countries, residences, age groups, educational levels, and marital statuses. Factors such as living in an urban or suburban environment, being in the youth demographic, possessing a higher education, maintaining single status, having an extensive social network, holding a negative perception of health, lacking home internet access but having access at work and on the go, along with the facilitation of online communication and remote work, collectively explain the variance in daily internet usage time. The relationship between the number of years of education and the duration of internet usage is moderated by sociodemographic variables (gender, age, and marital status) as well as social variables (locations of internet usage and social contacts). These findings enable us to identify a user profile at a higher risk of developing problematic behavior in relation to internet usage, as indicated by the time invested. Full article

Sourdough production is a complex fermentation process. Natural sourdough fermentation without standardization causes great variability in microbial communities and derived products. Starter cultures have emerged as alternatives to natural fermentation processes, which could improve bakery quality and produce bioactive compounds. This study aimed to evaluate the impacts of freeze-drying on the production and viability of sourdoughs with Lactiplantibacillus pentosus 129 (Lp) and Limosilactobacillus fermentum 139 (Lf), as well as their effects on the quality of long-fermentation bread. These strains were selected based on their better performance considering acidification and exopolysaccharide production capacity. Sourdough with Lp and Lf were propagated until the 10th day, when physicochemical and microbiological parameters were determined. The produced sourdoughs were freeze-dried, and bread samples were produced. The freeze-drying process resulted in high survival rates and few impacts on the metabolic activity of Lp and Lf until 60 days of storage. Incorporating Lp and Lf improved the microbiological and physicochemical properties of sourdough and long-fermentation breads. Tested freeze-dried sourdoughs led to reduced bread aging (higher specific volume and decreased starch retrogradation) and increased digestibility. The results show the potential of the freeze-dried sourdoughs produced with Lp and Lf as innovative strategies for standardizing production protocols for the bakery industry, especially for producing long-term fermentation bread. Full article

Background: Investigations have shown the different impacts that ACEs have on an individual’s adult life, on both physical and mental health, but they have not yet shown the issue of the influence of ACEs on adults and young adults. Objective/Participants and Setting: This systematic review, performed according to the PRISMA norms and guidelines, intended to understand the most frequent outcomes of adverse childhood experiences in the life of young adults and adults. Methods: Studies were identified through multiple literature search databases at EBSCOhost, Web of Science, and PubMed April 2023, and a total of 279 studies, published between 1999 and 2002, were excluded, 256 because of multiple factors: being duplicates, showing statistical analysis with correlations only, being systematic reviews or case studies, comprising individuals under the age of 18, and not meeting the intended theme; ultimately, we selected for the review a total of 23 studies. Results and Conclusions: The impacts of the various articles are subdivided into three main themes: antisocial and criminal behaviour; sexual Behaviour and intimate partner violence; and attachment, quality of life, and therapeutic alliance. Full article

This study aimed to explore how dark personality traits influence the interplay between embitterment and jealousy. We first assessed the appropriateness of the scales used to assess jealousy, personality, and embitterment for our study population, examining their performance across different relationship statuses and ensuring their reliability. Then, through correlation, regression, and moderation analyses, we investigated the relationships among these measures. Our results revealed that Machiavellianism and narcissism act as moderators in the embitterment–jealousy relationship. Specifically, Machiavellianism moderated associations between overall embitterment and its psychological state and behavioral jealousy, while narcissism moderated connections between total embitterment and its psychological state, behavioral jealousy, cognitive jealousy, and overall jealousy. Furthermore, the combined influence of a longer relationship duration and higher levels of embitterment and Machiavellianism contributed to total jealousy scores. These findings deepen our comprehension of jealousy’s intricacies and the underlying factors at play. Full article