Search Results (5,222)

Objectives: Post-activation performance enhancement (PAPE) has been explored for its potential to improve performance in combat sports. This part II of the systematic review and meta-analysis investigated the acute effects of PAPE protocols on sport-specific performance outcomes and evaluated the influence of moderating variables, specifically competitive level and training experience. Methods: A PRISMA-guided search (2010–2024) identified 13 studies examining PAPE in combat sports athletes. Inclusion criteria required human trials using defined PAPE protocols and evaluating sport-specific tests, primarily the Frequency Speed of Kick Test (FSKT-10) and the Taekwondo-Specific Agility Test (TSAT). A random-effects meta-analysis (Hedges’ g) was conducted on data from 176 athletes. Results: The meta-analysis revealed a profound moderating effect of training status on PAPE responsiveness. For the FSKT-10, amateur athletes demonstrated large, significant improvements (g = 1.28, p < 0.001), whereas elite athletes showed trivial, non-significant changes (g = 0.11, p = 0.357). Similarly, athletes with <6 years of training experience exhibited substantially larger enhancements in both FSKT-10 (g = 1.60) and TSAT agility (g = −1.64) compared to their more experienced (>6 years) counterparts (g = 0.42 and g = −0.65, respectively). Furthermore, dynamic and biomechanically specific conditioning activities (e.g., repeated high-intensity techniques) were most effective at driving sport-specific potentiation. Conclusions: PAPE protocols may enhance acute sport-specific performance when utilizing dynamic, highly specific conditioning activities. However, a possible “ceiling effect” may blunt this potentiation in elite and highly experienced athletes, suggesting a potential need for highly individualized priming strategies at the top competitive levels, specifically in taekwondo. Full article

The assessment of the hydromorphological state of a river is fundamental for both correctly evaluating its ecological conditions and planning its restoration. Despite this, there is a critical gap in studies on this topic in Southern Italy, although they are recommended by several EU Framework Directives. This research provides a contribution to filling this gap by assessing the hydromorphological quality of the Middle and Lower Sabato River (Southern Italy), by using the method officially adopted by the Italian Institute for Environmental Protection and Research (ISPRA), named IDRAIM. The method presents the advantage of considering the specific Italian context in terms of channel adjustments and anthropogenic impacts. However, it also considers pre-existing geomorphological approaches developed in other countries that make the method applicable at least in the entire Mediterranean area. To apply the method, in this study, we used data obtained by GIS analysis, remotely sensed data, and field-surveyed data. The study has highlighted that, in the Middle and Lower Sabato R., eight river reaches out-of-fifteen have displayed a “moderate or sufficient” morphological quality, five reaches a “good” morphological quality, while the remaining two reaches have been characterized by a “poor” morphological quality. Functional alterations have seemed to prevail over artificiality and intensity of short-term channel adjustments in conditioning hydromorphological quality. These results will be a key starting point for already planned studies dealing with both the restoration of the Sabato R. and flood hazard and risk assessment. Full article

The development of new energy vehicles (NEVs) is key to the green and high-quality upgrading of China’s automotive industry, with the penetration rate of domestic NEV passenger cars exceeding 50%. However, deepening industry–university–research (IUR) collaborative innovation to break core technological bottlenecks remains a critical challenge. To address the limitations of existing studies—mostly focusing on dyadic interactions or hypothetical numerical simulations—this study constructs a novel tripartite evolutionary game model of NEV enterprises, university–research institutions, and the government, fully incorporating the industry’s unique attributes of high technological complexity, industrial integration, and innovation risk. Innovatively, we calibrate and verify the model using actual operation data from the Yancheng Institute of Technology–Yueda New Energy Vehicle College, bridging the gap between traditional theoretical simulation and industrial practice. The quantitative findings show that: a 40–60% balanced benefit distribution and matching cost-sharing mechanism are the core conditions for the system to reach an evolutionarily stable state; when the achievement transformation coefficient exceeds 50%, the convergence rate of stable cooperation willingness between both parties increases by over 40%; a moderate government subsidy intensity of 55% effectively accelerates the system’s positive evolution, with the incentive effect of subsidies diminishing rapidly in the mature collaboration stage; and robust collaborative innovation technology can reduce government intervention demand by more than 60%. This study enriches the theory of NEV IUR collaborative innovation, breaks the limitations of traditional research frameworks, and provides actionable references for promoting the high-quality development of the NEV industry. Full article

Pea (Pisum sativum L.) is a multifunctional legume of growing importance in sustainable cropping systems. This study presents an integrative assessment of a forage pea variety across multiple agronomic functions under temperate continental conditions. Results from three environmentally comparable field trials were synthesized to evaluate (i) grain yield and protein traits, (ii) biomass production and nutrient accumulation in cover cropping systems, and (iii) effects on soil nitrate dynamics and maize (Zea mays L.) yield. Compared with vegetable- and dry-seed-type genotypes, the forage-type cultivar exhibited greater plant height and lodging tendency, moderate grain yield, and elevated protein content (28.8%), characterized by a legumin-dominated protein profile. As a winter cover crop grown in mixture with oat (Avena sativa L.), pea produced lower total biomass than rye (Secale cereale L.) but showed substantially higher nitrogen concentrations (2.93–3.01%), indicating enhanced nitrogen input potential. In crop rotation, pea-based treatments significantly affected soil nitrate distribution and maize productivity. Complementary resource use in pea-based systems enhanced biomass production, supporting forage and green manure functions while contributing to soil fertility and system stability. Its morphological and physiological adaptability enables integration into diverse production models, from intensive to regenerative systems. Overall, pea should be regarded not merely as a single crop, but as a strategic component of diversified farming systems aimed at increasing protein yield, optimizing inputs, improving soil quality, and strengthening the long-term sustainability of agroecosystems. Full article

The rapid accumulation of fruit and vegetable waste and oyster shell residues presents increasing environmental challenges, particularly in regions with intensive agricultural and aquaculture production. This study evaluated the use of oyster shell powder as a calcium-based buffering additive to stabilize acidic fruit and vegetable waste during rearing of black soldier fly larvae (BSFL, Hermetia illucens). Five substrates containing 0, 2, 4, 6, and 8% oyster shell powder (fresh weight basis) were prepared and used for larval rearing under controlled conditions for 12 days. Substrate pH dynamics, larval growth performance, substrate utilization efficiency, and nutritional composition of larval biomass were assessed. Oyster shell supplementation significantly increased substrate pH in a dose-dependent manner, shifting the substrate from strongly acidic conditions toward the range favorable for larval development. Moderate supplementation levels (2–4%) resulted in the highest larval biomass, survival rate, dry matter reduction, and bioconversion efficiency, whereas excessive supplementation reduced performance. Protein content increased at moderate supplementation levels, while lipid content decreased with higher oyster shell inclusion. Calcium concentration in larval biomass increased proportionally with supplementation, whereas essential amino acid composition remained stable. These results demonstrate that oyster shell powder can be used as an effective buffering material to improve the stability of acidic organic waste substrates and enhance BSFL-based bioconversion. The combined utilization of fruit and vegetable waste and oyster shell residues represents a practical approach for integrated waste valorization and supports the development of circular bioeconomy strategies for sustainable protein production. Full article

Background and Objectives: Adolescent idiopathic scoliosis (AIS) is a three-dimensional spinal deformity that requires effective conservative management. Physiotherapeutic scoliosis-specific exercises (PSSE) have been widely used; however, evidence regarding their effectiveness according to therapist supervision intensity remains limited. Therefore, this study aimed to evaluate the effects of PSSE in patients with AIS and to examine differences according to supervision intensity. Design: Systematic review and meta-analysis of randomized controlled trials (RCTs) conducted in accordance with the PRISMA 2020 guidelines. Materials and Methods: RCTs involving patients with AIS (aged 10–18 years, Cobb angle 10–45°) were included if PSSE was applied alone or in combination with other conservative treatments. The primary outcomes were Cobb angle, angle of trunk rotation (ATR), and Scoliosis Research Society-22 (SRS-22). Effect sizes were calculated as standardized mean differences (SMDs) using a random-effects model. Subgroup analyses were performed according to supervision intensity. Results: A total of 10 RCTs (n = 600) were included. The pooled analysis demonstrated that PSSE significantly reduced Cobb angle (SMD = −0.52, 95% CI −0.79 to −0.25, p < 0.001) and ATR (SMD = −1.01, 95% CI −1.53 to −0.48, p < 0.001) compared with control interventions. In subgroup analyses, fully supervised interventions showed larger and more consistent effects, with statistically significant improvements in both Cobb angle (SMD = −0.70) and ATR (SMD = −1.33), whereas hybrid approaches did not demonstrate statistically significant effects. However, statistical support for subgroup differences was stronger for ATR than for Cobb angle. SRS-22 scores showed a trend toward improvement but did not reach statistical significance. Moderate to high heterogeneity was observed in some analyses, and risk-of-bias concerns were identified in several studies. Conclusions: PSSE may be an effective conservative intervention for improving structural curvature and trunk rotation in patients with AIS. Subgroup findings suggest that closer therapist supervision may be associated with more favorable effects, particularly for ATR; however, these findings should be interpreted cautiously because of heterogeneity and potential risk of bias. Large-scale, high-quality trials are warranted to confirm the magnitude and long-term sustainability of clinical effects. Full article

Agricultural ecosystems in northeastern Bangladesh are increasingly vulnerable to climate-induced stressors, particularly rising temperatures and seasonal droughts. While previous research has examined the climate’s impact on agriculture in broader contexts, no study has specifically investigated long-term seasonal vegetation and thermal dynamics in Sylhet. This study addresses this gap by assessing spatio-temporal variations in vegetation health under climate stress in the Sylhet region from 2005 to 2025 using remote sensing techniques. To investigate this problem, the study derived the Normalized Difference Vegetation Index (NDVI) and land surface temperature (LST) from Landsat satellite imagery and evaluated their seasonal behavior across the major cropping periods Rabi, Kharif I, and Kharif II. The relationship between vegetation health and surface temperature was examined using Pearson’s correlation matrix along with a statistical comparison to identify change patterns, transitions among vegetation and thermal stress classes, and the seasonal intensity of climate stress. The findings indicate that increased LST generally corresponds with reduced vegetation cover in lowland agricultural zones, whereas elevated areas with forest or tree covers show an opposite response. Distinct spatial hotspots of thermal stress and drought-prone zones were also identified, particularly during the dry Rabi season. These results highlight the idea that rising LST corresponds with declining NDVI values, indicating that increasing thermal stress and potential reductions in agricultural vegetation productivity and climate stress across Sylhet’s agricultural landscape have intensified markedly from 2005 to 2025, with clear seasonal differences in vulnerability. NDVI analysis reveals a consistent decline in vegetation health, while LST patterns show widespread transitions from moderate to high and severe thermal stress, particularly during the Kharif seasons. The observed NDVI decline under elevated LST conditions indicates reduced vegetation vigor and potential productivity within agricultural lands, rather than a direct reduction in cultivated areas, since NDVI primarily captures vegetation density and physiological condition. The strongest NDVI–LST inverse relationship occurs in Rabi and Kharif I, indicating vegetation’s cooling role, whereas this linkage weakens in Kharif II due to dominant monsoon-driven atmospheric controls. Full article

This study presents the first watershed-scale assessment of the impact of thermal spring discharges on the hydrochemistry and water quality of the Soummam basin (northeastern Algeria). Fourteen stations were monitored during three campaigns (October 2024, December 2024 and March 2025), combining physicochemical analyses, hydrochemical diagrams, and water quality indices (WQI and IWQI). The results reveal a clear spatial gradient in water composition, from low-mineral Ca-HCO₃/Ca-SO₄ facies in upstream areas to highly mineralized Na-Cl facies associated with thermal springs (Sidi Yahia and Sillal). Electrical conductivity reaches up to 27,359 µS/cm, reflecting intense mineralization driven by evaporite dissolution and deep water–rock interaction. This thermomineral signature propagates downstream through mixing and ion exchange processes, leading to progressive salinity enrichment. Water quality indices highlight significant degradation in thermally influenced zones, with approximately 50% of samples unsuitable for drinking (WQI > 300) and more than 60% classified as highly restricted for irrigation (IWQI < 40). Cluster analysis further confirms the distinction between severely impacted, moderately affected, and relatively preserved waters. Overall, the findings demonstrate that thermal discharges represent a major and persistent driver of salinization, emphasizing the need to incorporate geothermal influences into water resource management strategies in semi-arid environments. Full article

Changes in aviation turbulence at cruise altitudes have important implications for aviation safety under global warming scenarios in the future. Using projections from the NorESM2-MM model within the CMIP6 framework, this study evaluates changes in clear-air turbulence (CAT) at 250 hPa over Southwest China during the twenty-first century based on an ensemble of 15 diagnostic indices. The results show: (1) Historical moderate-or-greater (MOG) CAT peaks in a zonal belt near 30–35° N, with annual frequencies up to 1.6% over the Hengduan and Karakoram Mountains. Future increases remain focused in this belt, are stronger and more extensive under SSP5-8.5, peak in winter and spring, and weaken over much of the Plateau interior in summer. (2) Future changes are intensity-dependent: stronger categories show larger relative increases, and PDF changes are concentrated in the right tail, indicating amplified extreme turbulence. The 19-year moving-average time series shows that MOG-CAT increases by 28.3% and 36.5% under SSP2-4.5 and SSP5-8.5, respectively, by the mid-twenty-first century, and by 26.0% and 69.4% by the late twenty-first century. (3) Along the Chengdu–Lhasa corridor, winter MOG-CAT increases in all three segments. Under SSP5-8.5, median increases are about 50% in the Basin and Plateau segments and about 85% in the Transition segment, with most diagnostics ranging from 50% to 180%. (4) High-emission scenarios are more likely to cause turbulence and instability in the southwestern region, potentially posing greater challenges for aviation turbulence warning and safety assurance. Full article

Background: Unplanned hospitalizations in patients with cancer are associated with adverse outcomes, including intensive care unit (ICU) transfer and in-hospital mortality. This study aimed to evaluate the predictive role of the prognostic nutritional index (PNI) and albumin-to-globulin ratio (AGR) for these outcomes in patients with unplanned hospitalization in a medical oncology ward. Methods: This retrospective, single-center study included patients aged ≥18 years with malignancy who had unplanned hospitalization between 1 January and 30 April 2025. PNI and AGR were calculated at admission. The primary outcome was ICU transfer or in-hospital mortality. Univariable and multivariable logistic regression analyses were performed, with AGR and PNI evaluated in separate models to avoid collinearity. Predictive performance was assessed using ROC analysis. Results: A total of 418 patients were included, with adverse clinical outcomes in 26.8%. Metastatic disease was present in 73.7%, and gastrointestinal (41.6%) and lung cancers (21.5%) were most common. In univariable analysis, metastatic disease (p < 0.001), Eastern Cooperative Oncology Group (ECOG) performance status (p < 0.001), cancer type (p = 0.030), reason for hospitalization (p = 0.001), AGR (p < 0.001), and PNI (p < 0.001) were significantly associated with adverse clinical outcomes. In multivariable analyses performed in separate models, ECOG ≥ 2 emerged as the strongest independent predictor of adverse clinical outcomes (AGR model: OR: 9.93; PNI model: OR: 11.14; both p < 0.001). Metastatic disease remained an independent risk factor, while higher AGR and PNI values were independently associated with a reduced risk (all p < 0.05). Among hospitalization reasons, only electrolyte imbalance/transfusion was associated with a lower risk, whereas most cancer type subgroups were not independently significant. Both indices showed moderate predictive performance, with PNI performing slightly better than AGR (AUC: 0.729 vs. 0.707). Conclusions: ECOG performance status, together with PNI and AGR, were identified as practical and accessible predictors of adverse clinical outcomes in patients with unplanned hospitalization in a medical oncology ward. Full article

Introduction: Periprosthetic joint infections (PJI) are among the most serious and costly complications in orthopedic surgery, significantly affecting patient prognosis and healthcare systems. Despite rigorous aseptic measures, intraoperative contamination of sterile fields, instruments, and air remains a persistent source of potential infection. This study investigates the relationship between the microbial contamination of sterile fields during arthroplasty and postoperative inflammatory markers, with the objective of determining whether the contamination of sterile fields correlates with the presence of periprosthetic joint infection (PJI). Material and Methods: This prospective observational study included 33 patients undergoing total hip or knee arthroplasty in a university-affiliated orthopedic center. Intraoperative samples were collected from sterile fields and equipment to detect microbial contamination, while postoperative monitoring involved the C-reactive protein (CRP); erythrocyte sedimentation rate (ESR); leukocyte count; temperature; and wound assessment on days 1, 3 and 7. All patients received 48 h of prophylactic cefuroxime. Statistical analysis was conducted using the International Business Machines (IBM) Statistical Product and Service Solutions (SPSS) software for Windows, version 30.0 (IBM Corporation, Armonk, New York, United States of America) with significance set at p ≤ 0.05. Results: Postoperative inflammatory markers showed distinct patterns depending on the isolated microorganism, with Proteus vulgaris and Staphylococcus hominis ssp. consistently associated with higher CRP and leukocyte values, indicating a more intense systemic response. Staphylococcus epidermidis was the most frequently isolated species but showed moderate inflammatory profiles, suggesting its potential role in subclinical colonization. A strong correlation between CRP on day 3 and leukocyte count (r = 0.81) confirms their combined utility in the early detection of infectious complications, while ESR appeared less dynamic and more complementary in nature. Discussion: This study highlights the significant role of intraoperative contamination and microbial virulence in shaping the postoperative inflammatory response after arthroplasty. Elevated CRP and leukocyte levels, particularly on day 3, were closely associated with pathogens known for biofilm formation and chronic infections. Despite prophylactic antibiotic use, confirmed infections still occurred, suggesting the need to reassess current protocols and enhance intraoperative contamination control. Conclusions: Pathogen presence in sterile fields during arthroplasty increases the risk of periprosthetic joint infections, often without early clinical symptoms. CRP on day 3 and leukocyte count were the most reliable early indicators of persistent inflammation. Full article

Background: Delirium is a frequent and serious complication in intensive care units (ICUs), associated with increased mortality, prolonged mechanical ventilation, extended length of stay, and long-term cognitive impairment. This study aimed to assess ICU nurses’ knowledge and practices regarding delirium management in Cyprus and to identify predictors of knowledge. Methods: A cross-sectional study was conducted among nurses working in adult ICUs in Cyprus. Data were collected using a structured self-administered questionnaire that included demographic characteristics, sedation and analgesia practices, and an adapted Delirium Knowledge Questionnaire incorporating ICU-specific items. Results: A total of 70 ICU nurses participated, most of whom were female (60%) with a mean ICU experience of 5.1 years. Only 27.1% reported daily delirium screening, although 65.2% perceived delirium as frequent. Sedation protocols were reported by 34.3%, sedation scales were used by 44.3%, and daily sedation interruption by 61.4%. Only 15.7% had received formal delirium training, while 87.1% expressed the need for further education. Knowledge scores were moderate to high (68.5–84.0%), with higher scores among nurses with prior training and female nurses (p = 0.003). Hospital type was associated with sedation practices, with greater use of sedation scales in public ICUs (p < 0.001) and propofol more commonly used as first-line sedation compared with midazolam in private ICUs (p = 0.018). Conclusions: Although ICU nurses demonstrated moderate knowledge of delirium, systematic screening and protocolized management remain suboptimal. Structured education and standardized implementation strategies are required to strengthen patient safety in critical care settings. Full article

Intensive nitrogen (N) fertilization in Phyllostachys edulis (Carrière) J.Houz. forests increases productivity but also accelerates nitrous oxide (N₂O) emissions, posing a challenge to balancing forest yield with environmental sustainability. Silicon (Si), a beneficial element for bamboo, has emerged as a potential regulator of soil nitrogen (N) cycling, but its role in controlling N₂O emissions in forest ecosystems is not fully understood. In this study, we conducted a factorial pot experiment using P. edulis forest soil, with data collected over two years, but only the second-year results were analyzed, with controlled N (0, 80, and 160 mg kg⁻¹) and Si (0, 25, and 50 mg kg⁻¹) additions. The experiment lasted two years, but only the second-year data were used for analysis. We investigated how Si affected soil inorganic N dynamics, enzyme activities, plant growth, and cumulative N₂O emissions. Si addition significantly reduced N-induced N₂O emissions by up to 53%, with the strongest mitigation observed under moderate N input (p < 0.05, two-way ANOVA). This effect was associated with lower activities of AMO, NaR, and NiR, together with reduced availability of oxidized N substrates, indicating that Si mitigated N₂O emissions mainly by constraining upstream N transformation processes rather than by directly suppressing N₂O fluxes. Si addition also tended to promote plant biomass accumulation. These findings suggest that integrating Si fertilization into bamboo forest management may help improve nutrient use efficiency while mitigating greenhouse gas emissions. Full article

Grazing is a widespread land use practice with significant implications for biodiversity and ecosystem functioning. Wild ungulates, as key components of terrestrial ecosystems, play a vital role in maintaining ecosystem health. Dietary overlap exposes wild ungulates to intense competition with livestock, yet the effects of grazing on them remain underexplored. Using camera-trapping data from Xinglong County in the mountains of Southeast China, we investigated the spatiotemporal responses of eight wild ungulates to livestock (cattle and horses). Our results showed the following: (1) The potential distribution of suitable habitats for ungulates was primarily shaped by elevation (ELE), distance to temple (DTT), precipitation of the coldest quarter (bio19), and distance to water (DTW). Among the species, blue sheep (Pseudois nayaur) showed the strongest response to livestock presence. (2) Spatially, most ungulates appeared to avoid livestock; forest musk deer (Moschus berezovskii) showed spatial avoidance of horses. (3) Temporally, the daily activity patterns of most ungulates generally showed low to moderate overlap with those of cattle. These findings suggest that livestock grazing may be associated with negative effects on wild ungulates in Xinlong County. Given the ecological importance of ungulates, the need to maintain wildlife community integrity, and the long history of grazing in the region, further research is warranted to understand the role of livestock in shaping wildlife communities. Full article

Urban soils along transportation routes are subjected to intense anthropogenic pressure, altering their physicochemical properties and promoting the accumulation of potentially toxic metals (PTM). This study aimed to assess soil contamination levels and evaluate the bioindicative potential of Acer negundo L. growing in urban green areas exposed to varying traffic intensities. Topsoil and leaf samples were collected from eight sites representing different levels of anthropogenic disturbance. Soil granulometric composition, pH, organic carbon content, selected nutrients, and concentrations of PTM (Cu, Pb, Zn, Ni, Co, Mn, Cd, Hg, Fe) were determined, and contamination was evaluated using pollution indices (Igeo, EF, CF, Er). The soils ranged from moderately acidic to slightly alkaline (pH_KCl 5.85–7.66). Elevated concentrations of Zn (1078 ± 3.07 mg kg⁻¹), Pb (401.4 ± 2.51 mg kg⁻¹), Mn (1816 ± 3.3 mg kg⁻¹), and Cd (10.8 ± 2.06 mg kg⁻¹) were recorded at most sites, frequently exceeding permissible limits for urban green areas (Zn: 500; Pb: 200; Mn: 240 and Cd: 2 mg kg⁻¹). Correlation analyses revealed that zinc and cadmium are the two predominantly traffic-related origins. Pollution indices indicated moderate to very high enrichment, particularly for Cu and, locally, for Cd and Zn, while cadmium posed the highest potential ecological risk. The differences in the order of element abundance between the soil and plant tissues indicated a selective enrichment in plant leaves, with a preference for Fe, Zn, Mn, Cu and Pb. A strong positive correlation between soil and leaf cadmium concentrations indicates its high bioavailability and efficient transfer to plant tissues. These results demonstrate that Acer negundo is a valuable bioindicator of urban soil contamination, particularly for cadmium and zinc, and highlight the significant impact of road traffic on urban soil quality. Full article