Tag: nevin manimala

BMC Nurs. 2025 Apr 15;24(1):421. doi: 10.1186/s12912-025-02946-9.

ABSTRACT

BACKGROUND: Academic students often face significant academic pressures that can lead to test anxiety, affecting performance and well-being. Students who are highly sensitive to feedback may experience heightened levels of anxiety due to their perceived ability to meet expectations and their reaction to criticism or praise.

AIM: This study assessed how hardiness moderates the relationship between feedback sensitivity and test anxiety among nursing students.

METHODS: A multicenter descriptive correlational design was utilized, involving a convenient sample of 1932 Egyptian nursing students. Data were collected conveniently and analyzed to determine the correlations between test anxiety, hardness, and feedback sensitivity scale from January 2024 to February 2024.

RESULTS: The study revealed that 52.9% of the nursing students experienced a high level of test anxiety. A statistically significant positive correlation was found between feedback sensitivity and test anxiety (P < 0.001), while a negative correlation was observed between hardiness, feedback sensitivity, and test anxiety (P < 0.001). Predictors of test anxiety, based on the linear regression model, included gender, educational level, monthly income, previous grades, history of failure, use of non-prescribed sedatives, hardiness, and feedback sensitivity (P < 0.01 or P < 0.001). Mediation analysis indicated that feedback sensitivity had a direct effect on test anxiety (P < 0.001), as well as an indirect effect through hardiness, which played a mediating role in the relationship between feedback sensitivity and test anxiety (P < 0.001).

CONCLUSION: This research underscores the critical role of feedback sensitivity and hardiness in shaping test anxiety among nursing students.

PMID:40234885 | DOI:10.1186/s12912-025-02946-9

BMC Nurs. 2025 Apr 15;24(1):428. doi: 10.1186/s12912-025-02977-2.

ABSTRACT

BACKGROUND: A breast cancer diagnosis extends beyond physical health concerns, profoundly impacting a woman’s psychological well-being, resilience and sexual satisfaction. Mastectomy intensifies these challenges, potentially affecting overall quality of life and long-term well-being. Understanding the interrelationships between perceived stress, resilience and sexual satisfaction is crucial for designing targeted interventions that effectively support mastectomized women. This study evaluates the effectiveness of the Emotional Freedom Technique in mitigating stress, enhancing resilience and improving sexual well-being post-mastectomy.

METHODS: A quasi-experimental pretest-posttest design was employed with a convenient sample of 112 Egyptian women who had undergone mastectomy. Participants were recruited from the Outpatient Oncology Clinic at Beni-Suef University Hospital. Data were collected over six months (January-June 2024) and analyzed using SPSS version 26.0. The intervention consisted of six structured EFT sessions delivered over six weeks. Paired t-tests assessed pre- and post-intervention differences, while Pearson and Spearman correlation analyses examined relationships between variables to accommodate different data distributions.

RESULTS: Post-intervention assessments revealed statistically significant improvements. Perceived stress scores decreased from 32.42 ± 1.70 to 17.27 ± 2.96 (t = 49.130, p < 0.001, Cohen’s d = 3.2), resilience scores increased from 11.53 ± 1.67 to 31.46 ± 5.48 (t = 36.454, p < 0.001, Cohen’s d = 2.8) and sexual satisfaction scores improved from 17.03 ± 1.55 to 31.00 ± 4.31 (t = 13.245, p < 0.001, Cohen’s d = 2.5). Strong negative correlations were found between perceived stress and both resilience (r = -0.692, p < 0.001) and sexual satisfaction (r = -0.835, p < 0.001), while resilience and sexual satisfaction were strongly positively correlated (r = 0.890, p < 0.001).

CONCLUSION: EFT is a cost-effective, non-invasive intervention that significantly reduces stress, enhances resilience and improves sexual satisfaction in women post-mastectomy. To optimize clinical integration, healthcare institutions should develop structured EFT training programs for nurses, incorporating theoretical foundations, hands-on practice and competency assessments. Standardized protocols should be established to guide EFT implementation in post-mastectomy care. Further research should explore long-term effects and broader applicability across diverse healthcare settings.

CLINICAL TRIAL NUMBER: NCT06583629 on 4/9/2024.

PMID:40234881 | DOI:10.1186/s12912-025-02977-2

Malar J. 2025 Apr 15;24(1):121. doi: 10.1186/s12936-025-05346-1.

ABSTRACT

BACKGROUND: Long-Lasting Insecticidal Nets (LLINs) are effective malaria prevention tools. However, information is limited about their durability and wash resistance in field circumstances, especially in seasonal transmission areas in South Asia. This study comprised a systematic examination of usage, physical integrity and insecticidal activity of LLINs in households in Afghanistan, three years after distribution.

METHODS: In 2014, 500 households in 5 malaria endemic Afghan provinces (Balkh, Herat, Khost, Kunduz and Nangarhar) that had received LLINs (PermaNet 2.0) three years earlier were randomly selected through cluster sampling. All household heads were interviewed about LLIN survivorship, usage and maintenance. One randomly selected LLIN from each household was rigorously inspected to calculate the proportionate Hole Index (pHI). Four location-specific pieces from 200 randomly selected LLINs (40 per province) underwent cone bioassay testing in the Jalalabad entomology laboratory, to measure mosquito knock-down after 60 min and 24-h mortality. The number and percentage of nets with ≥ 80% mosquito mortality was assessed. Five location-specific pieces from 34 randomly selected LLINs (5-8 per province) were tested for insecticidal content by High-Performance Liquid Chromatography (HPLC).

RESULTS: Of the 1190 distributed LLINs, 1045 were still in the household at the time of the survey (survivorship 87.8%) and 1006 of those (96.3%) had been used every night in the past week. 9.1% of the LLINs were used by more than three people.. Physical integrity measurements indicated that 97.0% of the LLINs were in a serviceable condition (pHI 0-642), while 3.0% were ‘too torn’ (pHI > 642). Functional Net survival was 93.4% (95%CI 91.7-94.8%). However, only 28% of the LLINs met the WHOPES ≥ 80% mortality criterion. Washing of LLINs was associated with a significant reduction in mosquito mortality. Median deltamethrin concentration was 0.12 g/kg netting material (6.7% of the original concentration at production).

CONCLUSIONS: LLIN survivorship and functional net survival in this setting was excellent, while only a minority of LLINs retained sufficient insecticidal activity after three years of usage. This study underlines the need for evaluation of real-life LLIN durability in field circumstances. LLIN washing should be avoided, as it lowers insecticide content and LLIN efficacy.

PMID:40234878 | DOI:10.1186/s12936-025-05346-1

BMC Oral Health. 2025 Apr 15;25(1):575. doi: 10.1186/s12903-025-05947-x.

ABSTRACT

BACKGROUND: The quality of marginal and internal adaptation plays a crucial role in the clinical longevity of pediatric crowns. This study aimed to evaluate the effect of restoration type (3D-printed, milled, and prefabricated) on the marginal and internal adaptation and absolute marginal discrepancy (AMD) values of crowns for primary molar teeth.

METHODS: Three restoration groups were created: 3D-printed resin, milled resin-matrix ceramic, and prefabricated zirconia crowns (n = 10 per group). A typodont tooth was prepared according to the guidelines for prefabricated zirconia crowns and scanned to design restorations. 3D-printed and milled crowns were fabricated from the same design. All crowns were cemented on standardized 3D-printed resin dies with self-adhesive resin cement. Marginal and internal adaptation and AMD values were evaluated using micro-computed tomography (micro-CT) at multiple measurement points. Data were analyzed using one-way analysis of variance (ANOVA) and Tukey HSD tests, with statistical significance set at P < 0.05.

RESULTS: The restoration type significantly influenced the marginal and internal gap and AMD values (P < 0.05). The prefabricated crown group exhibited the highest marginal gap (233.5 ± 33.4 μm) and internal gap (538.6 ± 47.4 μm). The 3D-printed group showed the highest AMD value (299.5 ± 70.2 μm). The milled group demonstrated the lowest gap values, which remained within clinically acceptable limits.

CONCLUSIONS: Prefabricated zirconia crowns displayed the highest marginal and internal gaps, whereas milled crowns exhibited the most favorable adaptation values within clinically acceptable limits. Given their superior adaptation, CAD-CAM-produced restorations may be a recommendable alternative for pediatric patients.

PMID:40234877 | DOI:10.1186/s12903-025-05947-x

Radiat Oncol. 2025 Apr 15;20(1):53. doi: 10.1186/s13014-025-02630-x.

ABSTRACT

PURPOSE: Although partial breast irradiation (PBI) is accepted as an effective and cosmesis-preserving technique for low-risk early-stage breast cancer following standard lumpectomy, data supporting PBI following oncoplastic surgery are sparse. We report prospective data in efforts to determine whether PBI can be safely utilized after oncoplastic surgery.

METHODS: Patients with low-risk stage 0-1 breast cancer following successful lumpectomy with optional oncoplastic reconstruction were enrolled on a phase II trial. Patients were treated with a modified Florence regimen to 30 Gy in 5 fractions on the Varian Edge radiosurgery system using IMRT or VMAT. Presurgical MRI, post-operative seroma and surgical clips were used to assist target delineation. The effect of oncoplastic surgery on radiation dosimetry and Breast Cancer Treatment Outcome Scale scores were assessed using student’s t-test for continuous variables and chi-square for categorical variables.

RESULTS: From 2018 to 2022, 50 patients with 52 tumors were enrolled with 48% undergoing oncoplastic reconstruction. Although median PTV volumes were numerically larger in the oncoplastic group (266 cc vs. 223 cc), there were no statistically significant differences in PTV volumes, ratio of PTV to whole breast or mean heart or lung doses (p > 0.05). Mean baseline BCTOS aesthetic scores were 1.35 for standard lumpectomy vs. 2.52 for oncoplastic (p = 0.003). At long-term follow-up > 2 years, mean BCTOS aesthetic scores were 1.29 for standard lumpectomy vs. 1.35 for oncoplastic (p = 0.71). At a median follow-up of 46 months, there were no local recurrences.

CONCLUSIONS: When utilizing pre-treatment MRI, surgical clips and a relatively large PTV, PBI after oncoplastic surgery was safe and effective for appropriately selected patients. In combination with oncoplastic surgery, partial breast irradiation achieves excellent long-term cosmesis that improves over time.

PMID:40234874 | DOI:10.1186/s13014-025-02630-x

Chaos. 2025 Apr 1;35(4):043132. doi: 10.1063/5.0252938.

ABSTRACT

We use the minimum description length (MDL) principle, which is an information-theoretic criterion for model selection, to determine echo-state network readout subsets. We find that this method of MDL subset selection improves accuracy when forecasting the Lorenz, Rössler, and Thomas attractors. It also improves the performance benefit that occurs when higher-order terms are included in the readout layer. We provide an explanation for these improvements in terms of decreased linear dependence and improved consistency.

PMID:40233402 | DOI:10.1063/5.0252938

Chaos. 2025 Apr 1;35(4):043134. doi: 10.1063/5.0244816.

ABSTRACT

In this paper, we illustrate the innovative techniques to explore the dynamical properties of the hybrid complex systems by various parameters and demonstrate the clusters under the chaotic-condensation peculiarities to accentuate the different technological challenges in the modern world. The complex dynamic characteristics of the contemplated systems are explored with interferometry techniques, which play key roles in examining the consequences of intricate features to interpreting the dynamics of an assemblage that possesses the ability to traverse along dependable tracks of particles, and thus, the solutions within the framework of quantum perturbation for partially chaotic structures are explored with substantial peculiar outcomes in the expanding active matter systems. Correlation graphs with chaotic parameters illustrate the significance of coherent stochastic generation for quasi-granular systems at finite momenta that possess sufficient fractions of instability fluxes. The distribution of temperature profiles is demonstrated by employing specific techniques to account for the different asymmetries and distinct formulas that characterize the structure of the dynamical system using realistic interference methods. The analytical solution contained distinctive information about the response of chaotic and probabilistic droplets within the multiplicities throughout hot and cold particulates, which are triggered by an influenced time crossover phase that occurs continually under the emissions of various sources that proliferate. Our results indicate that the newly developed phase encompasses the partially coherent collection of active matter with the temperature, which probes the rapidity of its transformation, and such phases exhibit significant mutual relationships. The findings accentuate the significance of contemplating correlations and bestowing extraordinary farsightedness about the meticulous manifestation of complex systems. The current methods are unique in obtaining new forms of solutions that appear beneficial for researchers to further understand nonlinear dynamical problems. The acquired techniques are also applicable to examine the solutions of other types of chaotic systems with mathematical analysis through machine learning.

PMID:40233401 | DOI:10.1063/5.0244816

Chaos. 2025 Apr 1;35(4):043128. doi: 10.1063/5.0250492.

ABSTRACT

Two dynamical indicators, the local dimension and the extremal index, used to quantify persistence in phase space have been developed and applied to different data across various disciplines. These are computed using the asymptotic limit of exceedances over a threshold, which turns to be a generalized Pareto distribution in many cases. However, the derivation of the asymptotic distribution requires mathematical properties, which are not present even in highly idealized dynamical systems and unlikely to be present in the real data. Here, we examine in detail the issues that arise when estimating these quantities for some known dynamical systems. We focus on how the geometry of an invariant set can affect the regularly varying properties of the invariant measure. We demonstrate that singular measures supported on sets of the non-integer dimension are typically not regularly varying and that the absence of regular variation makes the estimates resolution dependent. We show as well that the most common extremal index estimation method is not well defined for continuous time processes sampled at fixed time steps, which is an underlying assumption in its application to data.

PMID:40233400 | DOI:10.1063/5.0250492

Chaos. 2025 Apr 1;35(4):043131. doi: 10.1063/5.0249549.

ABSTRACT

This work explores the relationship between state space methods and Koopman operator-based methods for predicting the time evolution of nonlinear dynamical systems. We demonstrate that extended dynamic mode decomposition with dictionary learning (EDMD-DL), when combined with a state space projection, is equivalent to a neural network representation of the nonlinear discrete-time flow map on the state space. We highlight how this projection step introduces nonlinearity into the evolution equations, enabling significantly improved EDMD-DL predictions. With this projection, EDMD-DL leads to a nonlinear dynamical system on the state space, which can be represented in either discrete or continuous time. This system has a natural structure for neural networks, where the state is first expanded into a high-dimensional feature space followed by linear mapping that represents the discrete-time map or the vector field as a linear combination of these features. Inspired by these observations, we implement several variations of neural ordinary differential equations (ODEs) and EDMD-DL, developed by combining different aspects of their respective model structures and training procedures. We evaluate these methods using numerical experiments on chaotic dynamics in the Lorenz system and a nine-mode model of turbulent shear flow, showing comparable performance across methods in terms of short-time trajectory prediction, reconstruction of long-time statistics, and prediction of rare events. These results highlight the equivalence of the EDMD-DL implementation with a state space projection to a neural ODE representation of the dynamics. We also show that these methods provide comparable performance to a non-Markovian approach in terms of the prediction of extreme events.

PMID:40233399 | DOI:10.1063/5.0249549

J Am Acad Orthop Surg. 2025 Apr 10. doi: 10.5435/JAAOS-D-24-01041. Online ahead of print.

ABSTRACT

Workplace violence (WPV) is a pervasive issue in health care that has shown rising incidence in recent years. There are several risk factors related to the worker, occupational environment, and patient that predispose to WPV events and should be considered in risk mitigation strategies. WPV has been associated with negative effects on worker health and professional efficacy. Past work has shown that multifactorial intervention models are more effective at improving WPV prevention and response in health care. This review summarizes the statistical trends, risk factors, and negative effects of WPV in health care, as well as interventions to improve prevention and response.

PMID:40233398 | DOI:10.5435/JAAOS-D-24-01041