bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Comparative Study of Material and Structural Configurations in Piezoelectric Energy Harvesting
Authors: Syed Fahmidul Huq , Thong Li Wah , Baig Mirza Farrukh , Chan Yee Kit , Efzan M. N. Ervina 
Published: February 2025

The objective of this study is to evaluate the energy harvesting performance of piezoelectric cantilever beams using three configurations—unimorph, bimorph, and stack—with two piezoelectric materials, PZT-5A and PVDF. The methodology involved a detailed analysis of voltage, mechanical power, and electrical power outputs across varying frequencies and load resistances. Experiments were conducted at the resonance frequencies of each beam configuration and material to determine their energy conversion efficiency. The results reveal that PZT-5A significantly outperformed PVDF, with PZT-5A's voltage output being up to 94% higher at resonance. Among the configurations, the bimorph beam with PZT-5A demonstrated the highest energy conversion efficiency, achieving a 50% increase in electrical power output compared to the unimorph configuration and a 9% improvement over the stack configuration. Load resistance analysis also indicated optimal energy harvesting in the range of 104 Ω to 105Ω. The novelty of this research lies in its comprehensive comparison of different materials and configurations, highlighting the critical role of structural design and material properties in optimizing piezoelectric energy harvesters for low-power applications. These findings provide valuable insights for improving the efficiency of piezoelectric devices in various practical applications. Doi: 10.28991/ESJ-2025-09-01-019 Full Text: PDF
Organizational Internal Factors and Sustainable Performance: A Serial Mediation Model
Authors: Ejaz Faisal , Abid Sidra , Nasir Aemin , Esponda-Pérez Jorge Alberto , Ejaz Sarmad , Hossain Md Billal 
Published: February 2025

Objective: The present study aims to explore the relationships between big data analytics capability, circular economy practices, and SMEs’ sustainable performance in Pakistan. It investigates notable factors determining SMEs’ sustainable performance, including employees’ perceived usefulness, data-driven culture, and leadership competency mediating the mentioned relationships. Method: The study employs quantitative research based on a positivist philosophy orientation. Data were collected through a structured questionnaire distributed among the employees of 350 SMEs operating in Pakistan’s different regions. Findings: The study's results demonstrated the direct effects of big data analytics capability on sustainable performance, employee perceived usefulness, and data-driven culture. Additionally, circular economy practices influence sustainable performance; employee perceived usefulness and leadership competency. Finally, the results highlighted that each relationship is subject to partial mediation, which indicates the role of employee-perceived usefulness and data-driven culture in the relationship between big data analytics and sustainable performance and employee-perceived usefulness associated with the relationship between circular economy practices and sustainable performance. Novelty:The present study highlights that all three of the previous topics are consistent and significantly contribute to the existing literature by providing a model with the main factors that determine SMEs’ sustainable performance, which can be sufficient for countries’ developing economies. Doi: 10.28991/ESJ-2025-09-01-020 Full Text: PDF
HSTCN-NuSVC: A Homogeneous Stacked Deep Ensemble Learner for Classifying Human Actions Using Smartphones
Authors: Raja Sekaran Sarmela , Pang Ying Han , Shih Yin Ooi , Zheng You Lim 
Published: February 2025

Smartphone-based human activity recognition (HAR) is an important research area due to its wide-ranging applications in health, security, gaming, etc. Existing HAR models face challenges such as tedious manual feature extraction/selection techniques, limited model generalisation, high computational cost, and inability to retain longer-term dependencies. This work aims to overcome the issues by proposing a lightweight, homogenous stacked deep ensemble model, termed Homogenous Stacking Temporal Convolutional Network with Nu-Support Vector Classifier (HSTCN-NuSVC), for activity classification. In this model, multiple enhanced TCN networks with diverse architectures are organised parallelly to capture hierarchical spatial-temporal patterns from raw inertial signals. Each base model (i.e., TCN) incorporates dilations and residual connections to preserve longer effective histories, allowing the model to retain longer-term dependencies. Additionally, dilations can diminish the number of trainable parameters, reducing the model complexity and computational cost. The base models’ predictions are concatenated and fed into a meta-learner (i.e., Nu-SVC) for final classification. The proposed HSTCN-NuSVC is evaluated using a publicly available database, i.e., UCI HAR, and a subject-independent protocol is implemented. The empirical results demonstrate that HSTCN-NuSVC achieves 97.25% accuracy with only 0.51 million parameters. The results exhibit the model’s effectiveness in enhancing generalisation across individuals with better accuracy and computational efficiency. Doi: 10.28991/ESJ-2025-09-01-026 Full Text: PDF
PENGARUH LUAS LAHAN DAN TENAGA KERJA PERTANIAN TERHADAP PRODUK DOMESTIK BRUTO SEKTOR PERTANIAN DI INDONESIA
Authors: Sari Nadila , Juliansyah Hijri 
Published: February 2025

This research aims to determine the influence of agricultural land area and agricultural labor on GDP of the agricultural sector in Indonesia. This research uses secondary data for the period 1987-2021 obtained from the Food and Agriculture Organization (FAO). The study employs VectorAutoregressive (VAR). The results showed that agricultural land area has a positive and significant effect on GDP in the agricultural sector, while agricultural labor has a negative and significant effect on the GDP of agricultural sector
Isolation of Carrageenan from Eucheuma cottonii by Variying Alkaline Solutions
Authors: Gaspersz Nelson , Tanasale Matheis F. J. D. P. , Malle Dominggus , Kafara Zulvia Astrianti 
Published: February 2025

The carrageenan can be isolated by combining alkaline KOH, NaOH, and Ca(OH)2 solutions. Alkaline solutions of KOH: NaOH, KOH: Ca(OH)2, and NaOH: Ca(OH)2 were combined to extract carrageenan. The amount of the solution was varied, the carrageenan groups were characterized using FTIR, and the carrageenan’s gel strength was tested. The extraction results obtained the highest yield in the combination of alkaline solutions Ca(OH)2 80%+KOH 20%, which is equal to 70.18% FTIR test results for carrageenan produced from the extraction of Eucheuma cottonii seaweed showed absorption showing the type of kappa (κ) carrageenan. The highest gel strength test results were obtained in an alkaline solution of Ca(OH)2 80%: NaOH 20%, which was 252.5 g bloom, and the lowest was made in a solution of Ca(OH)2 80%: KOH 20%, which was 21.0 g bloom.
Enhanced Recovery of Bioactive Compound from Pineapple Peel Using Ultrasonic-Assisted Extraction with Enzyme Treatment at Varying Extraction Time
Authors: Kumalaningrum Amalia Nur , Arini Zulmilafatma Nurlita , Hidayat Jefri Pandu 
Published: February 2025

Pineapple peel is considered waste, but it has numerous beneficial uses due to its rich content of nutrients and bioactive compounds. The selection of extraction methods is essential to produce optimal bioactive compound extracts. Ultrasonic-assisted extraction (UAE) is a modern extraction technique that uses ultrasonic waves to improve the extraction by enhancing the release of compounds into the solvent. The UAE method was performed by varying extraction times at 30, 60, 90, and 120 min. The addition of cellulase enzyme was also applied as an optimization method for the extraction results. The addition of Cellulase elevated the yield, phenolic, and flavonoid content. The highest yield was obtained at an extraction time after 90 min. The highest total flavonoid content was 497.8±4.5 µgQE/mL, while the highest total phenolic value was 1007.6±7.6 µgGAE/mL at extraction of 60 min. However, the extracted samples without enzymes performed the highest results at an extraction of 90 min. The effect of the enzyme resulted in the most potent antioxidant activity (<10 ppm) in all-time extraction. To conclude, the addition of enzymes in the extraction process successfully optimized the extraction of phytochemical compounds from pineapple peel, as evidenced by testing phenolic and flavonoid content and antioxidant activity.
Kedudukan Perempuan dalam Sejarah Islam dan Pengaruhnya terhadap Hukum Keluarga Islam di Indonesia (Studi Analisis Kompilasi Hukum Islam)
Authors: Rohmansyah  , Rizki Darlin 
Published: February 2025

Socio-historically, the role and contribution of women often do not receive the attention they deserve in the history of Islamic civilization. Many historical records tend to emphasize male figures and ignore or underestimate the contributions of women. This creates a significant gap in understanding regarding the position and role of women in Islamic history. This paper tries to describe two things. First, the position of women in Islamic history. Second, the implications of women's position in Islamic history on Indonesian family law. Because, basically, the process of forming laws in Indonesia is the position of women in the past. This type of research, using literature research with the research properties of descriptive-prescriptive analysis. While the approach used is the historical approach. The results of this study show: First, the portrait of the position of women in Islamic history, especially in pre-Islamic and Islamic thought (interpretation and jurisprudence) women are placed in the second position after men. Second, the family law that was formed was a lot of descriptive content, exploitation, because it was formed based on the history of women's position in Islam which was charged with male culture.
The Influence of Health Education on Increasing Self Awareness of Coronary Heart Disease Prevention in High Risk Population
Authors: Rahmania Ambarika  , Indah Aprilia Angelina  
Published: February 2025

Background: Coronary heart disease is one of the leading causes of death in Indonesia. Ideally, people should understand the basic signs, symptoms, and early prevention of coronary heart disease. However, in reality, many people are still unaware, leading to a lack of self-awareness regarding the prevention of coronary heart disease.
Purpose: The aim of this study is to analyze the effectof health education on increasing self-awareness for the prevention of coronary heart disease inhigh-riskpatients.
Methods: This study uses a pre-experimental approach with a one-group pre-test and post- test design and an accidental sampling technique involving 49 respondents of high risk populations. The research instrument was a questionnaire and giving health education for increasing the self awareness.
Results: The results of the study showed that before the health education, most respondents had moderate self-awareness with a prevalence of 69.39%, amounting to 34 respondents. After the health education, self-awareness improved significantly, with almost all respondents exhibiting good self-awareness with a prevalence of 77.52%, totaling 38 respondents. The Wilcoxon sign rank test getting a result p value 0.00, indicating that health education had a significant effect on increasing self-awareness.
Conclusion: This health education can enhance self-awareness as it provides knowledge on how to prevent coronary heart disease. With this information, individuals better understand the importance of preventive measures and become more aware of their own condition, thus encouraging better behaviors in maintaining heart health.
The Impact of Reward Satisfaction on Nurses' Career Development in the Inpatient Ward of Gambiran Hospital Kediri
Authors: Alfian Fawzi  , Faisal Rahman  , Aprin Rusmawati  
Published: February 2025

Background: Career self-efficacy is a person's perception of their ability to choose and develop optimally in a particular field of work. Reward such as bonuses, promotions, or recognition of achievements, aims to provide incentives to employees to work better to achieve success in their careers.
Purpose: This study aims to analyze the association between reward satisfaction and the career self-efficacy of nurses working in the inpatient ward at Gambiran Hospital, Kediri City.
Methods: A quantitative associative research design was applied using proportionate stratified sampling. A total of 82 respondents participated in the study. Data were collected through questionnaires and analyzed using ordinal regression.
Results: Ordinal regression analysis revealed a significant relationship between reward satisfaction and nurses' self-efficacy in advancing their career paths, with a p-value of 0.029 (p < 0.05). Reward satisfaction accounted for 45.8% of the variation in self-efficacy.
Conclusion: Reward satisfaction significantly influences nurses' self-efficacy in advancing their career paths. These findings can serve as a reference for hospitals to enhance human resource management strategies.
Factors influencing implementation early initiation of breastfeeding (IMD ) in post partum mothers: A scoping review
Authors: Febriyani Irma , Rokhanawati Dewi 
Published: February 2025

Implementation of early initiation of breastfeeding (IMD) is the act of giving breast milk to babies within one hour after birth. In postpartum mothers, there are various factors that influence the implementation of IMD, such as the level of knowledge, education and support from the surrounding environment. A deeper understanding of these factors is essential to improve IMD implementation and promote optimal breastfeeding practices. To map evidence related to factors that influence the implementation of IMD in postpartum mothers. This type of research, namely Scoping Review, refers to the steps of Arksey and O'maley, the framework used is PEOS, the articles selected are articles from 2019 to 2023, articles in English and Indonesian and articles that focus on the factors that influence implementation Early initiation of breastfeeding, in selecting articles using the Prisma Flow Chart Checklist, data sources from journals were accessed via the Pubmed, Wiley, and Google Scholar databases with the keywords (influencing factors) AND (early initiation of breastfeeding) which resulted in 295 journals, after going through several stage obtained 5 journals. This research carried out a Critichal Appraisal according to the design in the research journal, namely cross-sectional Critical Appraisal. Based on 295 selected journals, only 5 articles were reviewed based on the inclusion criteria, Early Breastfeeding Initiation Has Various Factors that Influence the Success of Early Breastfeeding Initiation, namely Knowledge, Education, Attitude and Family Support. It is expected that this scope review will include further tracing of accessible databases to support this.
Low-cost virtual instrumentation applied to geotechnical testing
Authors: Contreras-Ferreyra Dante Uriel , Martínez-Rojas Alondra , Pastor-Gómez Nelio , Chávez-Negrete Carlos 
Published: February 2025

Introduction: In many of the current geotechnical tests, there is a need to improve data acquisition protocols, in addition to optimizing test procedures. The present work proposes the evaluation of 3 convetional sensors in geotechnical tests. Methodology: The devices used were an S3C DC-DC linear variable differential transformer, the HC-SR04 ultrasonic distance sensor, and the SKU:SEN0193 capacitive soil moisture sensor. The general methodology consisted of the development of the communication protocol, interface, and display of readings for each device. Subsequently, the calibration and precision level of each sensor was obtained. Results: The precision and reliability of the sensors were expressed according to the linear fit, obtaining R2 correlation values ​​for all equipment. Discussion: The implemented systems allowed the detection of significant changes or trends in the behavior of the materials, obtaining satisfactory performances in most of the sensors, except for the moisture sensor SKU:SEN0193, which registered low precision. Conclusions: The use of sensors offers an alternative to improve some of the typical geotechnical tests. However, it is important to mention that a particular calibration must be carried out for each sensor to be used.
Reimagining durability of hydrocephalus treatment using conditional survival
Authors: Yengo-Kahn Aaron M. , Wellons John C. , Jensen Hailey , Kulkarni Abhaya V. , Chu Jason K. , Hauptman Jason S. , Isaacs Albert M. , Jackson Eric M. , McDonald Patrick J. , McDowell Michael M. , Pollack Ian F. , Reeder Ron , Riva-Cambrin Jay , Rocque Brandon G. , Strahle Jennifer M. , Tamber Mandeep S. , Kestle John R. W. 
Published: February 2025

OBJECTIVE
Conditional survival incorporates the effect of time passed since an event to current data in an easy-to-understand, relevant format. Data from the Hydrocephalus Clinical Research Network (HCRN) registry were analyzed with conditional survival to improve patient and family counseling after hydrocephalus treatment.

METHODS
Children with hydrocephalus who underwent first-time treatment by a single proximal catheter ventriculoperitoneal shunt (VPS) or endoscopic third ventriculostomy (ETV) with or without choroid plexus cauterization with at least 3 years of follow-up in the prospective HCRN registry (14 sites, April 24, 2008–December 31, 2020) were included. Those with nonperitoneal or multiple proximal catheters were excluded. The probability of failure-free survival at 3, 5, and 10 years was calculated as a function of time since surgery.

RESULTS
Overall, 5782 patients were included (1609 with ETV, 4173 with VPS placement). The median time to censoring was 5.3 years. The overall respective 3-, 5-, and 10-year failure-free survival rates were 59%, 58%, and 57%, respectively, for ETV and 62%, 58%, and 54%, respectively, for VPS. If VPS failure had not occurred by 1 year postoperatively, the 3-, 5-, and 10-year failure-free survival rates were 85%, 79%, and 66%, respectively. If ETV failure had not occurred by 1 year, the 3-, 5-, and 10-year failure-free survival rates were 93%, 91%, and 86%, respectively. Conditional survival also varied by age and etiology.

CONCLUSIONS
Patients who do not require revision surgery in the 1st year have an excellent chance of being revision free for an extended period. Conditional survival plots provided are intuitive and can be used in the counseling of North American patients with surgically treated hydrocephalus.
Intravenous tranexamic acid and reduction in blood loss and perioperative transfusion requirements in adult spinal deformity: a multicenter propensity-scored observational study
Authors: Dagli Mert Marcel , Wathen Connor A. , Golubovsky Joshua L. , Ghenbot Yohannes , Arena John D. , Heintz Jonathan , Macaluso Dominick , Santangelo Gabrielle , Ali Zarina S. , Malhotra Neil , Yoon Jang W. , Welch William C. , Arlet Vincent , Ozturk Ali K. 
Published: February 2025

OBJECTIVE
Intraoperative antifibrinolytic therapy with tranexamic acid (TXA) is a focus of interest for blood loss reduction in multilevel adult spinal deformity (ASD) correction surgery. There is considerable heterogeneity in the reported findings regarding the safety and efficacy of this therapy. In the present study, the authors aimed to rigorously investigate the safety and efficacy of TXA in multilevel ASD correction surgery and to explore secondary perioperative outcomes.

METHODS
This retrospective cohort study used data from the authors’ institutional spine deformity database, including records of surgeries performed between January 1, 2013, and December 13, 2021, with a minimum follow-up of 2 years. Adult patients undergoing elective thoracolumbosacral posterior spinal fusion involving 6 or more vertebrae were included. The primary outcome was the safety and efficacy of TXA, with secondary outcomes including postoperative complications and overall outcomes. Propensity-scored stabilized inverse probability of treatment weighting was used to adjust for confounding factors. Subsequent weighted analysis of the treatment effect was performed using regression models for hypothesis testing, with 95% confidence intervals calculated based on weighted means, variances, and standard errors. The p values of primary outcomes and subgroup analyses were adjusted for multiplicity testing with the Benjamini-Hochberg correction at a false discovery rate of 0.05. The conduct and reporting of this study were supported by the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) guidelines.

RESULTS
The study included 598 patients, with 257 receiving TXA and 341 controls. Weighted analysis revealed that TXA administration was associated with significant reductions in estimated blood loss (p = 0.007), percentage of estimated blood volume lost (p = 0.035), intraoperative total red blood cell transfusion volume (p = 0.035), and postoperative packed red blood cells transfusion volume (p = 0.035). No significant differences were observed in postoperative thromboembolic events (p = 0.397).

CONCLUSIONS
TXA was significantly associated with reduced blood loss and transfusion requirements in multilevel ASD correction surgery without increasing the risk of thromboembolic complications.
Outcomes of reoperation following failed laser ablation surgery for epilepsy in pediatric patients
Authors: Wittayanakorn Nunthasiri , Wong Georgia M. , Teti Saige A. , Linan-Martinez Veronica D. , Qamar Haris , Cohen Nathan T. , Gaillard William D. , Oluigbo Chima O. 
Published: February 2025

OBJECTIVE
There are significant challenges in the surgical management of pharmacoresistant epilepsy. Laser interstitial thermal therapy (LITT) has emerged as a less invasive alternative to resection. However, seizure persistence or recurrence following LITT is not uncommon, and there is currently a lack of guidance and consensus on the best way to manage seizure recurrence after LITT for different epilepsy etiologies in children, or for the use of LITT when open resection has left residual epileptogenic tissue. The objective of this study was to assess the outcomes of secondary epilepsy surgery after failed initial LITT.

METHODS
The authors performed a retrospective chart review of patients who underwent secondary epilepsy surgery after failed LITT at Children’s National Hospital.

RESULTS
A total of 36 patients were treated with LITT, and 4 were excluded due to the palliative purpose of LITT. Thirteen of 32 patients (40.6.%) achieved Engel I, 1 patient (3.1%) achieved Engel II, and 18 patients (56.2%) had poor outcomes (Engel III–IV). Of these 32 patients, 9 (28.1%) underwent reoperation after their first laser ablation surgery due to a recurrence of epilepsy. Seven patients had a second laser ablation, and 2 patients underwent open resection. Of these 9 patients, 3 (33.3%) had Engel I outcomes, and 6 (66.7%) had poor seizure outcomes (Engel III–IV). When considering only patients who had repeat LITT for reoperation, 2 of 7 (28.6%) of these patients achieved seizure freedom (Engel I). Of the 32 patients, short-term complications were transient oculomotor (n = 1, 3.1%) or trochlear (n = 1, 3.1%) nerve deficit, which entirely resolved within 6 months, and superior quadrantanopia (n = 1, 3.1%) after initial LITT.

CONCLUSIONS
Although LITT has shown promising results in treating pharmacoresistant epilepsy, the recurrence of seizures necessitates further evaluation and consideration of reoperation, which may result in seizure freedom. Repeat LITT is a low-risk option for secondary surgery after seizure recurrence.