Search Results (2,917)

Cryptorchidism is a common congenital disorder in male horses characterized by the failure of one or both testes to descend into the scrotum. This developmental anomaly has important clinical, surgical, and economic implications, particularly in breeding animals. This retrospective study investigates the prevalence and laterality of cryptorchidism in a large equine population presented to two veterinary referral hospitals—Colorado State University Veterinary Teaching Hospital (CSU VTH, 1984–2014) and Oakridge Equine Hospital (OEH, 2008–2023). Medical records were reviewed to identify affected horses, and data on breed, age, and laterality of retained testes were collected. Anatomical location of retention (inguinal vs. abdominal) was excluded due to inconsistent documentation across the study period. A total of 777 horses met the inclusion criteria, with Quarter Horses comprising the majority of clinical cases. Quarter Horses exhibited a strong predisposition for left-sided testicular retention, whereas Thoroughbreds and Arabians more commonly presented with right-sided retention. These breed-specific trends in laterality suggest possible developmental factors influencing testicular descent. Understanding these patterns can aid in clinical diagnosis, improve surgical planning, and contribute to evidence-based breeding recommendations aimed at reducing the incidence of cryptorchidism in equine populations. Full article

A methodology is proposed to predict the daily river discharge (RD) to estuaries from rivers draining in similar temperate zones. Multiple regression models are proposed to estimate RD using only available meteorological data. The models are based on monthly air temperature (T) and recent (P_R) and non-recent (P_NR) atmospheric precipitation (rainfall). They consist of the linear and nonlinear terms of T, P_R, and P_NR, without interaction terms between them. Four rivers located in the north and centre of Portugal (flowing to the Atlantic Ocean) are used in this study—Vouga, Antuã, Neiva, and Mondego. The optimal period used to compute the recent precipitation history is between 4 and 7 days for Vouga, Antuã, and Mondego and is 11 days for Neiva. The recommended lag to compute the non-recent precipitation history is between 50 and 90 days. The optimisation of the lengths of recent and non-recent periods improved the model performance, compared with previously proposed models with interaction terms between the meteorological variables. The obtained models provide a clear interpretation of the impact that meteorology has on RD. All rivers showed similar responses, but the flows of bigger rivers (Vouga, Mondego) were more significantly affected by precipitation and temperature. The proposed models are useful for analysing biogeochemical processes in rivers and estuaries, as well as for assessing flood and drought risks in sensitive areas. Full article

The Oropouche virus (OROV) has been circulating in the Amazon region since the 1960s, with a progressive increase in outbreaks and human cases reported in Brazil and neighboring countries. In the Rio de Janeiro state, there has been a significant rise in suspected cases of arboviruses, with only 30% of laboratory tests confirming infections with dengue, Zika, or chikungunya viruses. The investigation of OROV virus circulation in the Rio de Janeiro state was initiated and confirmed in April 2024. Our study aimed to retrospectively investigate OROV infections in dengue-suspected cases with inconclusive diagnosis in order to better understand the temporal and geographic introduction of OROV in the Rio de Janeiro state. Municipalities from Rio de Janeiro with arbovirus-like fever cases but a low percentage of dengue-positive RT-PCR test confirmations were identified in the laboratory database. Samples were selected for testing OROV infections using real-time RT-PCR as recommended by the Brazilian Ministry of Health. Municipalities in the Middle Paraíba region of the state showed 93% negative tests results for dengue, Zika, and chikungunya starting in September 2023. A total of 118 positive cases of Oropouche were recorded in the state of Rio de Janeiro between March and July 2024. Moreover, by genome sequencing of eight strains, it was shown that OROV circulating in Rio de Janeiro belongs to recently emergent M₁L₂S₂ lineage. Our findings retrospectively revealed a concentration of cases in the Middle Paraíba region and an outbreak in the rural village of Cacaria, located in the municipality of Piraí. According to our data, this region is the first area with sustained transmission in the Rio de Janeiro state. Full article

Understanding the integration of newly recorded species into forest ecosystems is essential for evaluating their ecological impacts on native wildlife diversity. In this study, we examined the spatial and temporal niche dynamics of three sympatric squirrel species within the Labagoumen nature reserve, a temperate forest located in northern China. Particular emphasis was placed on the recently documented Eurasian red squirrel (Sciurus vulgaris) and its potential interactions with two native species: Père David’s rock squirrel (Sciurotamias davidianus) and the Siberian chipmunk (Tamias sibiricus). Using camera trapping data from 91 sites (2019–2024), we examined habitat use, activity rhythms, and niche overlap under contrasting levels of human disturbance. A total of 3419 independent effective photos of squirrels were recorded. S. vulgaris showed a broader spatial distribution and a higher relative abundance index (RAI) in the tourist area, while native species were more abundant in the non-tourist area. All three species showed similar annual activity patterns based on the monthly relative abundance index (MRAI), although native species exhibited an additional activity peak in June–July. Temporal niche overlap (C_ih) and the coefficient of overlap (Δ) between S. vulgaris and native species increased during the tourist season, suggesting synchronized activity under high disturbance. In contrast, lower overlap in the non-tourist season indicated stronger temporal partitioning. The daily activity rhythm of S. vulgaris remained stable, while native species displayed more variability, especially in non-tourist areas. S. vulgaris also exhibited a significantly broader spatial niche breadth (B_i), suggesting greater habitat exploitation and adaptability. Non-metric multidimensional scaling (NMDS) revealed no significant spatial segregation among the three species, indicating successful integration of S. vulgaris into the local community. Our findings emphasize the competitive advantage of S. vulgaris and demonstrate how human activities can restructure forest small mammal assemblages by altering spatiotemporal niche partitioning. We recommend long-term ecological monitoring to assess species diversity changes and guide adaptive conservation strategies. Full article

Migrant children’s discrimination perceptions directly affect their cultural adaptation in the city of influx. In response to migrant children, cities in China have issued relevant urban education policies such as the different-location college entrance examination policy. This study aims to investigate the impact of China’s urban educational policies on the relationship between perceptions of discrimination and acculturation among migrant children. The research sample for this paper was drawn from nine cities that pioneered the policy reform, and a total of 1436 questionnaires were collected. This study analyzed the data using multiple regression analysis and mediation effect tests. This study reveals the following: (a) Migrant children’s educational policy identity has a significant positive impact on their acculturation, whereas their perception of discrimination has a significant negative effect on their acculturation. (b) As the influence of urban educational policies increases, the negative effects of discrimination perceptions on migrant children’s school cultural adaptation, community cultural adaptation, and customs and language adaptation will all diminish. To further explore the facilitating effect of urban educational policies on the cultural adaptation of migrant children, this study proposes recommendations for the household registration system, college entrance examination admission system, and child protection system. This paper not only puts forward policy recommendations for cities of inflow but also provides a Chinese research horizon for the urban cultural adaptation of migrant children in cities of inflow. Full article

Although the ultimate drivers of bat fatalities at wind turbines are still not well understood, the foraging behavior of insectivorous bats puts them at increased risk of collision with rotating blades. Wind energy facilities are commonly located in agriculture fields where bats can exploit periodic superabundant insect emergence events in the late summer and early autumn. Thermal imaging, acoustic monitoring, and bat carcass stomach content analyses show that bats prey upon insects on and near wind turbine towers. Studies have shown a positive association between insect abundance and bat activity, including in agricultural systems. We conducted a systematic review of bat diets for four common bat species in the Midwest and northern Great Plains to synthesize existing knowledge across species, assess the extent to which these bat focal species consume crop pests, and evaluate the potential for crop pest emergence models to predict temporal and spatial patterns of bat fatalities in this region. Big brown bats and eastern red bats consumed a variety of crop pests, including some for which emergence models may be available. In contrast, there were few studies for hoary bats or silver-haired bats, and the dietary evidence available has insufficient taxonomic resolution to conclude that crop pests were consumed. To augment existing data and illuminate relationships, we recommend that genetic diet analyses for bats, specifically hoary and silver-haired, be conducted in the late summer and autumn in this region. The results of these studies may provide additional candidate insect models to evaluate for predicting bat fatalities at wind turbines and clarify if the superabundant insect emergence hypothesis warrants further investigation. Full article

This study seeks to develop and evaluate a methodological framework for assessing the tourism potential of hillforts, by using a selected sample of 25 of these heritage resources located in the Lower Silesia Voivodeship. This region, as one of Poland’s most popular among domestic and international tourists, is increasingly confronting overtourism at its primary attractions. Concurrently, it possesses underutilised cultural assets, notably 250 remnants of gords/hillforts (grodziska in Polish) spanning various historical periods and dispersed across the whole area. Thus, to ensure the universality of the method, samples of hillforts from three main topographic zones of Lower Silesia were selected. In addition to the aim of testing the method, a secondary objective of the research involved conducting a preliminary assessment of selected hillforts’ tourism potential in different parts of the voivodeship. The methodology combined desk research and field studies across all selected archaeological sites. Concerning the primary objective, the developed assessment tool effectively replicated the multidimensional analytical framework characteristic of established methodologies, yielding reliable outcomes for evaluating gords’ tourism potential. However, modifications to the scoring system are recommended to enhance methodological precision. Regarding analysis of the 25 surveyed hillforts, the results indicate that objects from all zones mainly demonstrate high tourism potential, suggesting an opportunity for transformation into tourist attractions. The integration of hillforts into existing tourism infrastructure could significantly contribute to localised sustainable development across the region. The primary significance of these heritage resources lies in their capacity to facilitate the diversification of tourism offerings across distinct areas of the voivodeship. This development holds particular strategic value for northern poviats currently peripherally engaged in tourism economy. Moreover, by leveraging hillforts, communities obtain assets important in the process of building a common identity around cultural/historical place while safeguarding monuments. Concurrently, the most attractive southern poviats will benefit from the new attractions as they can help in mitigating overtourism pressures at overcrowded places, being an interesting alternative to the top attractions. This approach aligns with strategies to disperse tourist flows through specialised archaeological tourism products, thereby balancing economic benefits and local communities’ well-being with heritage preservation. Full article

Recently, the popularity of large language models (LLMs) used as artificial intelligence tools supporting humans has been growing. LLMs are applied in many fields, including increasingly for various sustainability-related issues. One of the most popular tools of this type is ChatGPT, which, after being supplied with appropriate knowledge, can act as a domain expert, including in the area of sustainable transport. The article uses this functionality of ChatGPT, feeding it with knowledge about electric vehicles (EVs) available on the Polish market. The aim of the research was to develop a solution based on an LLM, which will act as an advisor when buying an EV. After appropriate modelling of knowledge and feeding it into ChatGPT, an expert system was obtained, which, based on the defined needs of the user, recommends the most suitable EV for them. When answering the system’s questions, the user provides only a description of the decision-making situation at the LLM input (e.g., the locations to which they are travelling, information on the number of family members, etc.). In turn, the appropriately fine-tuned ChatGPT provides a recommendation of vehicles that meet the user’s defined needs. This is a very user-friendly solution because it does not require the user to precisely define the vehicle evaluation criteria or a set of alternatives. This approach also does not require the user to have detailed domain knowledge. Full article

Power is essential in sports and is typically calculated using a standard gravity value of g = 9.81 m·s⁻². However, this value varies according to altitude and geographical latitude. The aim of this study was to improve the accuracy of power calculations using a photoelectric cell system and the local g value. First, the uncertainty in jump power calculation induced by the direct measurements involved in its estimation was analyzed in this cross-sectional study. Subsequently, the power values obtained for ten volleyball players were calculated through repeated jump tests of 15, 30, and 60 s, using a kinematic system composed of a transmitting bar and a receiving bar with 96 infrared LEDs that detect flight and ground times for each jump. The local gravity values for 34 different locations—obtained through the Geodetic Reference System, taking into account the altitude of each location—and the standard value of g = 9.81 m·s⁻² were used for the power calculation. Significant differences were observed, with underestimation occurring at higher altitude locations and overestimation at lower altitudes. To conclude, the results indicated that the geographic location of the experiment should be considered, and the use of GRS80 local gravity values is recommended to improve the accuracy of jump power calculations. Full article

This mixed-methods study investigated the dispositions and motivations of 118 K-12 teachers in Abu Dhabi regarding lifelong learning. Employing a sequential explanatory design, quantitative data were collected using a validated 40-item Likert scale survey across five domains: Goal setting, Application of knowledge and skills, Self-direction and evaluation, Locating information, and Adaptable learning strategies. Results indicated a moderate overall disposition toward lifelong learning, with the highest motivation observed in Self-direction and evaluation. Significant gender differences favored male teachers across all domains. The recommendations stress the need for developing goal-setting abilities, improving information accessibility, and encouraging adaptive learning strategies through focused professional development programs. Full article

In order to determine the impact of urbanization on raptors in the semi-desert conditions of southwestern Kazakhstan, an analysis of the spatio-temporal distribution of raptors is presented for the first time based on the results of surveys of the avifauna of Kyzylorda. Eight species of raptors were recorded: field Hen Harrier (Circus cyaneus), Marsh Harrier (C. aeroginosus), Eurasian Sparrowhawk (Accipiter nisus), Long-Legged Buzzard (Buteo rufinus), Eurasian Buzzard (B. buteo), Steppe Eagle (Aquila nipalensis), Eurasian Hobby (Falco subbuteo), and Common Kestrel (F. tinnunculus). The probability of raptors being present was negatively associated with dense urban low-rise buildings with limited greenery in the bay and the new part of the city. At the same time, the dense urban development with little or no greenery in the old central part of the city provides adequate habitat (including a foraging base and nesting sites) for the Common Kestrel. Raptor presence was positively associated with the Syrdarya River floodplain and wasteland with small groups of trees and/or shrubs. The landfill site located on the north-eastern edge of the city serves as a feeding ground for the Long-Legged and Eurasian Buzzards, while the airport area is inhabited by the Eurasian Buzzard, Steppe Eagle, and Common Kestrel. Based on this study, we would recommend that enterprises (e.g., grain storage facilities, airports) and local executive bodies who are interested in the conservation of raptors and regulating the population of the pigeons around their territories should retain or plant more native vegetation and shrubs and preserve areas with green spaces. Full article

Background: Load carriage is an activity of daily living, can be an occupational risk, and is a popular method of resistance training. Type of carry could be related to vascular and blood pressure (BP) responses and may be related to cardiovascular risk. As physical activity is recommended by clinicians and exercise physiologists, understanding the vascular responses in relation to type of carry is important to consider in terms of risk. The purpose of this study was to compare the vascular health and BP responses to the farmer’s handle (load at the side of the body) and zercher (load in front of the body) carry and to examine sex differences in the responses. Methods: A total of 38 adults (22 females and 16 males) completed farmer’s handle and zercher load carriage with pre- and post-vascular measurements using pulse wave analysis. Results: We found that load carriage with weight in front of the body (zercher) elicits a larger increase in arterial stiffness (AIx@75), and load carriage with the load on the side of the body (farmer’s handle) elicits a larger increase in peripheral systolic BP. There were no sex differences in the responses to carry. Females exercise (3.1 vs. 4.8) and weight train (1.5 vs. 2.6) fewer times per week and had a lower resting systolic BP (121.5 ± 10.3 vs. 131.3 ± 8.3 mmHg) (p < 0.05). Both types of load carriage increased peripheral systolic BP, central systolic BP, and vascular stiffness (p < 0.05). Conclusions: Location of load carriage is important to consider based on potential cardiac risk of patients. Full article

Background/Objectives: Asthma is a condition caused by chronic lower airway inflammation. Its primary treatment focuses on managing the condition and reducing the frequency of exacerbation episodes. Monitoring the level of asthma control among adults is essential for both clinical care and public health planning. This systematic review aimed to assess the level of asthma control among adults in Saudi Arabia and to determine the prevalence of controlled asthma in this population. Methods: The literature search was conducted using PubMed. We included all English-language, empirical, quantitative studies that investigated the prevalence of asthma control among Saudi adults. National Institutes of Health (NIH) Study Quality Assessment Tools guided determination of the quality of the included studies. This review is registered with PROSPERO (CRD42024484711). Results: Of the 107 initially identified studies, 17 met the inclusion criteria. Quality assessment tool rated 11 studies as good, 5 as fair, and 1 as poor. Most of the included studies used cross-sectional design from different geographical locations and varied in sample size. Overall, the prevalence of uncontrolled asthma among Saudi adults ranged from 23.4% to 68.1%. In some studies, well-controlled asthma was reported in as few as 3% of patients. Factors associated with uncontrolled asthma included lower educational attainment, unemployment, low income, female gender, tobacco use, poor medication adherence, and lack of regular medical follow-up. Environmental triggers and comorbid conditions, such as allergic rhinitis, were also frequently cited as contributing factors. Conclusions: Asthma control among adults in Saudi Arabia remains a significant public health concern. Improving outcomes requires a multifaceted approach that includes patient education, regular follow-up care (including pulmonary function tests, asthma severity assessments, and personalized treatment plans), and broader public health initiatives aimed at reducing exposure to allergens and pollutants. Strengthening primary care services and implementing nationwide asthma management programs may play a critical role in enhancing disease control and improving quality of life. Continued research in this field is strongly recommended. Full article

This study presents a comprehensive analysis of hydration heat-induced temperature and stress fields in a U-shaped aqueduct during the casting phase, integrating field measurements and numerical simulations. The key findings are as follows: (1) Thermal Evolution Characteristics: Both experimental and numerical results demonstrated consistent thermal behavior, characterized by a rapid temperature rise, subsequent rapid cooling, and eventual stabilization near ambient conditions. The peak temperature is observed at the centroid of the bearing section’s base slab, reaching 83.8 °C in field tests and 87.0 °C in simulations. (2) Stress Field Analysis: Numerical modeling reveals critical stress conditions in the outer concrete layers within high-temperature zones. The maximum tensile stress reaches 6.37 MPa, exceeding the allowable value of the tensile strength of the current concrete (1.85 MPa) by 244%, indicating a significant risk of thermal cracking. (3) Temperature Gradient and Cooling Rate Anomalies: Both methodologies identify non-compliance with critical control criteria. Internal-to-surface temperature differentials exceed the 25 °C threshold. Daily cooling rates at monitored locations surpass 2.0 °C/d during the initial 5–6 days of the cooling phase, elevating cracking risks associated with excessive thermal gradients. (4) Mitigation Strategy Proposal: Implementation of a hydration heat control system is recommended; compared to single-layer systems, the proposed mid-depth double-layer steel pipe cooling system (1.2 m/s flow) reduced peak temperature by 23.8 °C and improved cooling efficiency by 28.7%. The optimized water circulation maintained thermal balance between concrete and cooling water, achieving water savings and cost reduction while ensuring structural quality. (5) The cooling system proposed in this paper has certain limitations in terms of applicable environment and construction difficulty. Future research can combine with a BIM system to dynamically control the tube cooling system in real time. Full article

The explosive growth in marine economy has the capacity to not only revolutionize the marine economic development model but also produce a transition from a marine powerhouse to a marine superpower. China’s 11 coastal provinces and municipalities, capitalizing on their geographic advantages and distinct resource endowments, have emerged as principal locations propelling maritime economic growth. In this report, we employ a green finance (GF) framework and analyze panel data from 11 coastal provinces and municipalities in China as obtained over the period from 2010 to 2021. Such an analysis has the capacity to elucidate the driving mechanisms and extent of GF’s influence on the high-quality growth of the marine sector (EQUS). Our results reveal that GF substantially promotes the EQUS, a finding that is consist with that from several robust tests involved with evaluating this relationship. When analyzing the mediating impact of GF, it appears that GF may indirectly enhance the quality and efficiency of the maritime economy by stimulating technical innovations. Results from threshold effects research indicate that the promotional impact of GF is limited by the extent of maritime technical innovation, with levels above a certain threshold markedly increasing the influence of GF. When evaluating the role of heterogeneity, the impact of green money on promotion demonstrates regional and temporal diversity, exhibiting nonlinear traits across various locations and phases of development. In areas with robust economic foundations and developed maritime sectors, the marginal impacts of green financing are significantly enhanced. Based upon these findings, it is recommended that any courses which advance the EQUS should be promoted. Specifically, the augmentation of marine-related innovation skills, cultivation of green technology innovation (TEC), and the optimization of innovative resource distribution represents critical measures to achieve this goal. Full article