bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Effects of Seismic Behavior on High Ground Stress Soft Rock Tunnel: A Review
Authors: Sam Joel 
Published: October 2024

The purpose of this review is to critically assess seismic activity's effects on soft rock tunnels under high ground stress scenarios. The paper seeks to identify key novelties and research gaps in the existing literature, offering new insights into analytical techniques, excavation methods, support systems, and monitoring technologies. A comprehensive review of recent studies was conducted, focusing on seismic behavior, analytical techniques, and mitigation strategies for soft rock tunnels. Case studies were selected based on their relevance to high ground stress conditions and their contribution to understanding seismic resilience. Significant findings include the identification of specific geological conditions that exacerbate seismic risks and the comparative effectiveness of various analytical techniques and support systems. Novel insights into the interaction of structural reinforcements and monitoring systems are also discussed. The review highlights new analytical techniques and advanced monitoring systems that improve predictive accuracy and early detection of seismic risks. It also proposes a refined approach to integrating mitigation strategies for enhanced tunnel resilience. Doi: 10.28991/CEJ-2024-010-09-020 Full Text: PDF
Flexural Behavior of Reinforced Concrete Beams with Steel-Plate Reinforced Vertical Opening
Authors: Abed Shnait Masharq , Izzet Amer F. 
Published: October 2024

The structural response of simply supported Reinforced Concrete (RC) beams with square vertical openings is investigated in this work. Studies were conducted using seven specimens of RC beams, with the aim of comparing beams with vertical openings to those without. Meanwhile, the other beams featured carefully positioned square openings. Note that one of these beams served as the control and had no openings. Each beam was the same length (1400 mm) with a 180×120 mm cross-section. Two-point loads were applied over a span of 1200 mm throughout the testing method, with a central load placed 300 mm from the ends. The openings were positioned in the middle of the span and came in three different widths: 20, 40, and 60 mm. Openings were made using either 1.5 mm thick square steel tubing or none at all. The major goal of this study was to determine whether the steel tube could compensate for the decrease in beam strength and the impact of decreasing beam cross-section (producing opening). Correspondingly, the beam ultimate load was found to decrease by 15.75%, 24.2%, and 32.5% for opening widths of 20 mm, 40 mm, and 60 mm, respectively, as the opening width increased. On the other hand, the performance gain for beams strengthened with steel plates when steel tubes were used was 11.78%, 12.14%, and 13.28% for the respective opening widths. Doi: 10.28991/CEJ-2024-010-09-04 Full Text: PDF
Flexural Behavior of RC Continuous Beams Strengthened by Cementitious Composite Materials
Authors: Afefy Hamdy M. , Heniegal Ashraf M. , Baraghith Ahmed T. , Ibrahim Omar M. O. , Eldwiny Mostafa E. A. 
Published: October 2024

Due to their great strain capacity, high tensile strength, and ability to localize cracks, cementitious composite materials are beneficial for strengthening reinforced concrete (RC) members. This paper illustrates the application of cementitious composite materials in the form of precast thin layers to strengthen a double-spanned, full-scale RC beam. Both positive and negative zones were strengthened by the precast layer embedded into the concrete cover. The precast layers have a dimension of 20 mm in thickness and 150 mm in width as that of the substrate beam and were applied by two configurations: plain and reinforced layers. A ductile smooth steel sheet with 2 mm in thickness and 100 mm in width was used inside the reinforced precast layer. The composite action of the precast layer has mutual benefits; the embedded steel sheet localizes the cracks, while the surrounding cementitious composite materials protect the steel sheet from environmental impact. The experimental results showed that the strengthening system has a significant contribution to improve the failure mode and load-carrying capacity. The use of a plain precast layer caused a 6% increase in the ultimate load and a 33% enhancement in the moment redistribution ratio compared to the control beam (CB). Applying the strengthening system with reinforced precast layer shifted the failure mode from rupture failure in the precast layer to delamination without slippage in the embedded steel sheet and matrix, leading to the full tensile capacity of the precast layer. Besides, the yielded and ultimate loads increased by 34% and 41%, respectively, and maximum deflection increased by 36%. In addition, the beam's ductility increased by 36%, and the moment redistribution ratio was enhanced by 49% compared to the CB. Doi: 10.28991/CEJ-2024-010-09-05 Full Text: PDF
Analysis of Traffic Safety Factors and Their Impact Using Machine Learning Algorithms
Authors: Sejdiu Liridon , Tollazzi Tomaz , Shala Ferat , Demolli Halil 
Published: October 2024

The safety of road traffic is facing increasing challenges from a range of factors, and this study aims to address this issue. The paper describes the development of a model that assesses both the quantitative and qualitative aspects of the current traffic situation and can also predict future trends based on monthly data on traffic accidents over a period of years. The dataset is composed of the number of accidents that occurred in the Pristina region over a 10-year period, and these are categorized based on the type of accident and safety factors, including human, vehicle, and road factors. By using machine learning algorithms, a model has been developed that determines the factor with the greatest impact on traffic safety. To create the model, the algorithms Multiple Linear Regression (MLR), Artificial Neural Network (ANN), and Random Trees (RT) were used. The model evaluates the contribution of human, road, and vehicle factors to traffic accidents, using machine learning algorithms and 36 types of traffic accidents to analyze the relevant statistics. The results indicate a very good fit of the model according to the MLR algorithm, and this model also identifies the road factor as the main influencer of the traffic safety level. Doi: 10.28991/CEJ-2024-010-09-06 Full Text: PDF
Frictional Axial Resistance of Clamped Split Pocket Mechanism Steel Structural Joint: An Experimental Study
Authors: Putra Whelly T. , Setiawan Angga F. , Saputra Ashar , Satyarno Iman , Pratama Hamdi Y. 
Published: October 2024

The Clamped Split Pocket Mechanism (CSPM) prefabricated joint system was developed for a single-story steel instant house, designed to be compact and rapidly constructed without modifying the end of the beam and column element member. The CSPM bolted joint system was proposed as an optimal solution for post-disaster housing, especially after earthquakes. Despite its potential, the frictional tensile resistance behavior of the CSPM bolted joint system has not been previously studied, necessitating experimental investigation. This study examined the frictional tensile resistance behavior of the CSPM joint system by monitoring the effective friction coefficient under axial tension force. The experiments considered both the strong and weak axes of the joint and utilized two configuration types of specimens (L and T) with varying bolt pretensions of 2.5, 5, 7.5, and 10 kN. Results indicated that the effective friction coefficient of the CSPM bolted joint system ranged from 0.19 to 0.26, correlated to bolt pretension. Increased bolt pretension resulted in larger surface deformation of the split pocket, triggering a not uniform frictional tensile resistance across the steel surfaces of the split pocket joint. From this study, the achieved effective friction coefficients could guide the design of minimum pretension forces for clamps in prefabricated steel instant houses. Doi: 10.28991/CEJ-2024-010-09-07 Full Text: PDF
Experimental Investigation on Pervious Recycled Aggregate Concrete Made of Waste Porcelain
Authors: Khoshnaw Ganjeena J. , Younis Khaleel H. , Hamad Waleed A. , Ismail Ayser J. , Jukil Glpa Ali Mahmood , Jirjees Firas F. , Yaba Hozan K. , Maruf Shelan M. 
Published: October 2024

The current study examines the physical, mechanical, and durability of eco-efficient pervious concrete produced with partial and complete substitutions of natural aggregate (NA) by recycled aggregate (RA) waste from demolished concrete and porcelain. The experimental investigation assessed the workability (slump test), compressive strength, flexural strength, and tensile strength along with the concrete's water permeability, impact, and abrasion resistance. Seven mixes were examined; the first is a control mix with natural aggregate, and the other six are made with various RA ratios, including 30%, 70%, and 100%. The sand was also fully replaced by waste porcelain, even though the ratio of sand used in pervious concrete was low. The results revealed that using waste concrete and porcelain adversely affected the workability of fresh pervious concrete mixes, reducing it by approximately 14%. Furthermore, a decrease in the strength of pervious concrete was noticed, especially in the splitting tensile strength, where the reduction reached 32%. Moreover, the impact resistance of pervious concrete made with RA reduced by 29% compared to that made with NA; the same applies to durability, with an increase of 20% in weight loss. On the other hand, using both recycled concrete and recycled porcelain improved the permeability of the pervious concrete, which reached 30%. Pervious concrete made with waste concrete and porcelain can be an acceptable alternative to that made from natural aggregate due to its improved water permeability and positive environmental impact. However, further investigation is important to consider strength and durability enhancement. Doi: 10.28991/CEJ-2024-010-09-08 Full Text: PDF
Development of MAILI 21 (Lectora inspire 21 interactive learning media) to improve student learning outcomes in elementary schools
Authors: Astuti Novina Fitri , Widodo Susilo Tri 
Published: October 2024

Learning Pancasila and Citizenship Education which is less varied and innovative causes students to be less enthusiastic and bored quickly. Therefore, it is necessary to combine learning with IT-based media with conventional media to improve student learning outcomes. This study aims to develop interactive learning media Lectora Inspire and determine the feasibility, practicality, effectiveness, and able to improve student learning outcomes in the subject of Pancasila and Citizenship Education material united in diversity in grade III SD. This research uses the Borg and Gall model which is limited to stage eight. Starting with data collection, planning, product design, expert validation of products, product revision, product trials, product usage trials and final product revision. The research subjects consisted of 1 material expert, 1 media expert, 1 class teacher, 9 students for small-scale trials, and 13 students for large-scale trials. Data collection techniques used interviews, validation sheets, response questionnaires, and tests. The material expert validation results reached 90% with the "very feasible" category, the media result validation value reached 85% with the "feasible" category, and the media practicality value reached 90% with the "very practical" category. The media was also declared effective which can be seen from the pretest and posttest results with an average difference of 19 and the T-test results. Thus, the development of Lectora Inspire interactive media is concluded to be very feasible, practical, and effective in improving student learning outcomes.
Determination of Settling Velocity for Cohesive Sediments Using a Settling Column Experiment—Case Study: Ca Mau, Vietnam
Authors: Xuan Dung Tran , Nguyen Hoa Tien Le , Luong Hong Phuoc Vo 
Published: October 2024

The settling velocity (Ws) is a fundamental parameter in sediment dynamics, particularly in the coastal zones as estuarine and mangrove ecosystems, where various physical processes interact to influence sediment transport and deposition. Determining settling velocity is essential for understanding and predicting sediment transport, erosion–deposition processes in coastal environments. This study aims to determine the settling velocity and examines how sediment concentration affects settling velocity, using empirical models. The study applies these methods to compute the settling velocity of fine sediments in Ca Mau, Vietnam, which were collected in the Song Doc area (Western) in August 2014 and Rach Goc area (Eastern) in August 2015. The particle size analysis results indicate that the sediment samples from Western Ca Mau are coarser than those from Eastern Ca Mau, with sand ratios of 42.78% and 7.08% at the outer station, and 19.09% and 4.39% at the mangroves, respectively. The results also show that the average settling velocity of the sediment samples from Western Ca Mau is higher than that of the samples from Eastern Ca Mau. Specifically, the settling velocity in Western Ca Mau is 2.80 × 10−4 m s–1 at the outer station and 1.68 × 10−4 m s–1 at the mangroves. Meanwhile, in Eastern Ca Mau, the settling velocity of the sediment samples is 1.99 × 10−4 m s–1 at the outer station and 1.42 × 10−4 m s–1 at the mudflat-mangrove. Hence, it can be seen that the settling velocity of cohesive sediments corresponds well with the sediment’s particle size.
The Study Peculiarities of Market Valuation of Wheeled Vehicles in Operation
Authors: Novoseletskii I. N. , Fedotov S. V. 
Published: October 2024

The article critically examines the common practice of wheeled vehicles valuation and substantiates complex forensic approaches and methods for determining their market value. Specific aspects of using a comparative approach to the valuation of wheeled vehicles are discussed, and the procedure for the calculation is substantiated.Basic framework of vehicles average price calculation reviewed in the article can be used in the set of forensic vehicle commodity examination methods, which are now under development.
AMORte
Authors: Pacheco Gondim Letícia 
Published: October 2024

Freud afirma que o psicótico ama seus delírios como a si mesmo. E Lacan afirma que o Eros do psicotizado se encontra onde sua fala está ausente. Allouch, no entanto, assegura que, na psicose, não se trata de uma neurose narcísica a qual impediria a transferência, mas sim, de saber como pode amar um psicótico. Abordando os conceitos de Eu-ideal e Ideal de Eu a proposta desse trabalho é atingir a constituição do sujeito que se dá pelo reconhecimento do outro, caracterizando a relação de amor referida ao quadro narcísico, mas não realizada no plano imaginário. Lacan refere-se a duas perspectivas no amor, uma, ao bem supremo, que ele chamou de amar-em-Deus e a que tem relação com o agalma, que ele chama de amar verdadeiramente. O que é o amor verdadeiro? Allouch afirma que foi Lacan quem fez transferência com Aimée. Lacan foi tocado pela falta de amor que se encontrava nela e foi fisgado pelo saber, saber de alguma coisa que estaria ali e que lhe provocou a pergunta: O que é o saber?
Multiple intravenous infusions versus a single infusion of mesenchymal stem cells in a rat model of cerebral ischemia
Authors: Yokoyama Takahiro , Sasaki Masanori , Nagahama Hiroshi , Kataoka-Sasaki Yuko , Ukai Ryo , Oka Shinichi , Kocsis Jeffery D. , Honmou Osamu 
Published: October 2024

OBJECTIVE
Recent randomized clinical trials of a single infusion of mesenchymal stem cells (MSCs) for acute cerebral stroke revealed a limited functional recovery outcome. Conversely, animal studies suggest that multiple MSC infusions may enhance functional recovery by inducing neural plasticity, which indicates that a multiple-infusion approach might be effective for stroke treatment in humans. The objective of this study was to investigate whether multiple infusions of MSCs enhance functional outcomes during the acute phase of cerebral ischemia.

METHODS
Rats subjected to permanent middle cerebral artery occlusion (MCAO) were randomized into four groups: 1) vehicle group (infusion of vehicle only), 2) MSC-1 group (single administration of the standard MSC dose on day 3), 3) high-dose MSC group (single administration of three times the standard MSC dose on day 3), and 4) MSC-3 group (multiple administrations of the standard MSC dose on days 3, 10, and 17). MSCs were administered via the femoral vein. Behavioral performance and ischemic lesion volume were examined using in vivo MRI every 7 days from day 3 to day 45 after MCAO induction. The thickness of the corpus callosum (CC) was determined using Nissl staining, and the area of the CC was measured using ex vivo MRI. Interhemispheric connections within the CC were assessed using ex vivo MRI diffusion tensor imaging.

RESULTS
The MSC-3 group exhibited the most significant motor recovery and increased CC thickness and area among all groups. Increased CC thickness and area were correlated with improved behavioral function 45 days after MCAO induction. Neural tracts through interhemispheric connections via the CC were most pronounced in the MSC-3 group, and this anatomical change showed a positive relationship with behavioral function.

CONCLUSIONS
Multiple infusions of MSCs led to histological changes in the CC and neural tracts within the CC. These results indicate that multiple systemic infusions of MSCs had a greater beneficial effect in the acute phase of MCAO than a single standard or high-dose infusion of MSCs.
Regional differences in reimbursement rates from Medicare, Medicaid, and FAIR Health across common procedures for neurological surgeons
Authors: McGuire Laura Stone , Huntoon Kristin , Gerald Brittany M. , Stacy Jason D. , Ruebenacker Michael P. , Kelly Katherine A. , Houston Rebecca , Mazzola Catherine A. 
Published: October 2024

OBJECTIVE
FAIR Health—a nonprofit, state-funded database—was created as an independent repository of healthcare claims paid data to address allegations of price fixing. Many insurers have forced physicians to negotiate payments based on Medicare rates, rather than utilizing FAIR Health. The authors’ objective was to provide an overview of regional differences in reimbursement rates per several sample neurosurgical Current Procedural Terminology (CPT) codes and to compare Medicare, Medicaid, and usual, customary, and reasonable rates via FAIR Health rate estimates.

METHODS
The authors compared FAIR Health rates for three common neurosurgical CPT codes: 61510 (removal of bone from skull for removal of upper brain tumor), 22630 (fusion of lower spine bones with removal of disc, posterior approach, single interspace), and 62223 (creation of a brain fluid drainage shunt, ventriculoperitoneal, ventriculopleural, or other terminus), with Medicare and Medicaid reimbursement to evaluate differences in five different regions in the US.

RESULTS
Medicare and Medicaid reimbursement rates were consistently and significantly lower than FAIR Health in-network rates across all three CPT codes evaluated (p < 0.001 for all). Significant regional differences exist per census data in median age, median income, employment rates, and degree of health coverage (p < 0.001, p = 0.002, p = 0.002, and p = 0.001, respectively). Reimbursement estimates were found to have regional variation: Medicare/Medicaid rates were significantly lower than FAIR Health in-network rates for all codes across regions with a region-based interaction for reimbursement for code 62223 (p = 0.020). Medicare and Medicaid rates did not significantly vary across regions.

CONCLUSIONS
Inherent differences exist between cities and states, including median income, employment rates, and health coverage. Despite geographic cost practice indices for Medicare and state-specific production of Medicaid, Medicaid/Medicare reimbursement rates did not vary across regions but were consistently and significantly lower than FAIR Health estimates throughout the US. Locale-specific variation in FAIR Health may further indicate a better accounting of regional differences in cost of practice.
Effects of paroxetine, a P2X4 inhibitor, on cerebral aneurysm growth and recanalization after coil embolization: the NHO Drug for Aneurysm Study
Authors: Fukuda Shunichi , Niwa Youko , Ren Nice , Yonemoto Naohiro , Kasahara Masato , Yasaka Masahiro , Ezura Masayuki , Asai Takumi , Miyazono Masayuki , Korai Masaaki , Tsutsumi Keisuke , Shigeta Keigo , Oi Yuta , Nishimura Ataru , Fukuda Hitoshi , Goto Masanori , Yoshida Takashi , Fukuda Miyuki , Yasoda Akihiro , Iihara Koji 
Published: October 2024

OBJECTIVE
Rupture of cerebral aneurysms has a poor prognosis, and growing aneurysms are prone to rupture. Although the number of coil embolization procedures is increasing worldwide, they are more prone to recurrence than clipping surgeries. However, there is still no drug that prevents aneurysm growth or recanalization after coil embolization. The authors have previously focused on the role of hemodynamics in cerebral aneurysm development and reported that inhibition of the P2X4 purinoceptor, by which vascular endothelial cells sense blood flow, reduced the induction and growth of aneurysms in an animal model. In this study, the authors investigated the effects of paroxetine, a P2X4 inhibitor also used as an antidepressant, on aneurysm growth and recanalization after endovascular coiling.

METHODS
Using the J-ASPECT Study registry, the largest comprehensive reimbursement database system for acute stroke inpatient care in Japan, the authors searched for patients incidentally taking paroxetine who were registered in the decade 2010–2019 with an unruptured cerebral aneurysm or who underwent aneurysm coiling. They calculated the growth incidence and growth rate by the person-year method and the odds ratio for recanalization within 1 year after coiling and statistically compared to controls.

RESULTS
Seventy-eight stroke facilities participated, and 275 patients were identified as potentially eligible. Thirty-seven patients with unruptured aneurysms and 38 after coil embolization met all eligibility criteria. They were compared with 396 control cases of unruptured aneurysms and 308 coil-placement controls. Multivariate analysis showed that paroxetine significantly reduced the incidence of aneurysm growth (number of cases with growth/person/year; incidence rate ratio [IRR] 0.24, 95% CI 0.05–0.66; p = 0.003) and the growth rate (total increase in maximum diameter in millimeters/person/year; IRR 0.57, 95% CI 0.28–0.98; p = 0.04). Paroxetine also significantly reduced the odds of recanalization in the year after coiling (OR 0.21, 95% CI 0.05–0.95; p = 0.04). The authors then performed propensity score matching to reduce bias due to imbalances in patient characteristics between the two groups; the outcome confirmed that paroxetine significantly reduced aneurysm growth incidence (IRR 0.02, 95% CI 0.008–0.05; p < 0.0001) and growth rate (IRR 0.03, 95% CI 0.01–0.06; p < 0.0001) and the 1-year recanalization (OR 0.18, 95% CI 0.03–0.99; p = 0.04).

CONCLUSIONS
This observational cohort study suggests that P2X4 inhibitors such as paroxetine may be clinically applicable as prophylaxis against aneurysm rupture and postoperative recanalization.