bluuebunny/crossref_metadata_2025 huggingface dataset:
On the vectorial multifractal analysis in a metric space
Authors: Attia Najmeddine , Mahjoub Amal
Published: July 2023

Multifractal analysis is typically used to describe objects possessing some type of scale invariance. During the last few decades, multifractal analysis has shown results of outstanding significance in theory and applications. In particular, it is widely used to characterize the geometry of the singularity of a measure $ \mu $ or to study the time series, which has become an important tool for the study of several natural phenomena. In this paper, we investigate a more general level set studied in multifractal analysis. We use functions defined on balls in a metric space and that are Banach valued which is more general than measures used in the classical multifractal analysis. This is done by investigating Peyrière's multifractal Hausdorff and packing measures to study a relative vectorial multifractal formalism. This leads to results on the simultaneous behavior of possibly many branching random walks or many local Hölder exponents. As an application, we study the relative multifractal binomial measure in symbolic space $ \partial {\mathcal A} $.
A Systematic Literature Review on Digital Transformation in Higher Education: Revealing Key Success Factors
Authors: Bisri Aria , Putri Atina , Rosmansyah Yusep
Published: July 2023

To answer the challenges and take advantage of opportunities in this digital era, digital transformation (DT) is carried out in various fields, including higher education. Although DT does not yet have an agreed-upon definition, several papers provide approaches to understanding it. This paper presents a systematic literature review (SLR) to understand DT in higher education by addressing the research questions of what, why, and how to conduct DT in higher education. Sixty-six papers from five digital libraries, namely IEEE Xplore, Scopus, Web of Science, SpringerLink, and ScienceDirect, are discussed in this paper. The results of the SLR reveal that in higher education, the success of DT is strongly influenced by the leadership of executive in managing the institution to overcome barriers, to adopt appropriate strategies, and to maintain a consistent approach to implementation.
Evaluation of Project-based Teaching Quality Based on SBM-DEA
Authors: Ou Jianmeng , Lin Dongdong
Published: July 2023

Improving the quality of project-based teaching can have several benefits for students, including the development of hands-on skills, expanded thinking abilities, a better understanding of real life situations, building connection between individuals and society, and internalizing knowledge. Therefore, conducting a scientific evaluation of quality of project-based teaching is crucial. In this study, the focus was on the process of project-based teaching, involving 120 computer science and technology students from four universities in Hainan Province. The researchers utilized the slacks-based measure and data envelopment analysis (SBM-DEA) model to measure learning efficiency of these students. Additionally, the study analyzed the insufficient investment in project-based teaching in the four universities and identified the process factors affecting quality of project-based teaching. The results show that out of the 120 students, only 24 students achieved a learning efficiency of 1, accounting for only 20% of the total. This indicates that although project-based teaching is implemented in the surveyed schools, the comprehensive improvement of students’ learning efficiency has not been achieved. The two main factors contributing to the low quality of were identified as project-based teaching aids (X-2) and project-based teaching experience (X-3). The findings of this study hold important reference value for optimizing the project-based teaching process, identifying key factors of project-based teaching quality, and promoting the adoption of project-based teaching in higher engineering education to accelerate teaching mode reform.
Process Evaluation for Diversified Academic Assessment Mechanism in Higher Education Institutions by Use of Data Mining
Authors: Liang Heng
Published: July 2023

A diversified academic assessment mechanism can effectively improve students’ learning motivation, make up for the possible blind spots of a single assessment method, and better guide students’ learning and teachers’ teaching. Using data mining methods to process evaluation data for diversified academic assessment mechanisms in colleges and universities can discover patterns in students’ learning, find key factors affecting academic performance, and provide a basis for teaching reform. Most of the current process evaluation data mining methods focus on hard skills, such as academic performance and classroom participation, but it is difficult to evaluate soft skills such as critical thinking and teamwork. To this end, this paper studies the process evaluation data mining methods for a diversified academic assessment mechanism in colleges and universities. It constructs an indicator system for process evaluation of diversified academic assessment mechanism in colleges and universities, gives a quantitative method for indicators, and performs fuzzy comprehensive evaluation based on AHP-entropy weight method. For the evaluation of text-based indicators, a consistency training method is introduced to train the process evaluation correlation mining model using a large amount of unlabeled process evaluation examples, which effectively solves the problems of lack of labeled data, high labeling cost, and changes in data distribution, and improves the performance and availability of the model. The experimental results verify the effectiveness of the proposed method.
Patterns of Florida Bonneted Bat Occupancy at the Northern Extent of Its Range
Authors: Schorr Robert A. , Pitcher Kristopher A. , Aldredge Robert A. , Lukacs Paul M.
Published: July 2023

The Florida bonneted bat Eumops floridanus is a rare, endemic bat of South Florida that roosts in woodpecker cavities and anthropogenic structures such as roofing tiles, chimneys, and bat houses. The northernmost occurrences of the bonneted bat are from mature pine forests at the Avon Park Air Force Range, Florida. We used ultrasonic acoustic recorders to understand bonneted bat activity and habitat occupancy. We modeled occupancy using a hierarchical Bayesian analysis and included site- and time-specific covariates of detection probability and site-specific covariates of occupancy. Probability of detection was low throughout Avon Park Air Force Range but increased with Julian date. In most habitats, occupancy was poorly estimated, except for flatwood mature pinelands where occupancy was low (0.23 ± 0.06). As distance from red-cockaded woodpecker colonies increased, occupancy decreased (β = −1.19 ± 0.26 SD). At the northernmost extent of the range, and throughout much of the historic range, increasing the expanse of mature, fire-maintained forest systems will increase habitat for the bonneted bat and lead to faster population recovery.
Estimating Age and Growth of Largemouth Bass in Southwestern Reservoirs by Using Otoliths and Scales
Authors: Ingram Steven J. , Grant Joshua D. , Beard Zachary S. , Berg Nathan , Ringelman Anna M. , Bonar Scott A.
Published: July 2023

Age and growth data are frequently used to monitor and manage important North American sport fishes such as Largemouth Bass Micropterus salmoides. Continental and regional growth standards have been developed for this species to assess fish growth over time and across space. However, Largemouth Bass age and growth data are infrequently collected in Arizona and the reliability of age estimates derived from typical structures (e.g., scales, otoliths) in the Southwest is uncertain. Our objectives were to 1) compare precision and bias of age estimates from scales with those from otoliths and 2) estimate Largemouth Bass growth in several southwestern warmwater reservoirs by using otoliths. We collected Largemouth Bass from three Arizona reservoirs—Alamo, Peña Blanca, and Roosevelt—by boat electrofishing in spring 2021. We removed scales and sagittal otoliths from fish and then prepared and independently aged them three times. We compared differences in precision and bias between scales and otoliths using reader agreement percentages, confidence ratings, average coefficients of variation, and age-bias plots. We used age estimates from Largemouth Bass otoliths to calculate mean lengths-at-age at capture and relative growth indices based on published growth standards in each reservoir. Largemouth Bass scale age estimates were less precise, overestimated ages of younger fish, and underestimated age of older fish compared with those of otoliths. Growth was lower in Peña Blanca Lake than in the other two reservoirs according to mean length-at-age estimates, and relative growth indices suggested that Largemouth Bass growth in all three reservoirs was above average at younger ages, but less so at older ages. The results from this study add to a growing body of literature supporting the use of otoliths for estimating age and growth of Largemouth Bass.
A User Authentication Schema Under the Integration of Mobile Edge Computing and Blockchain Technology
Authors: Xue Feng , Li Fangju
Published: July 2023

The safe and efficient authentication of users is the basis for the realization of the Internet of Things. A reliable and fast user authentication schema that combines mobile edge computing and blockchain technology is proposed. This schema adopts the polling hosting method to optimize the practical Byzantine Fault Tolerance (PBFT) algorithm, it reduces the impact of tokens in the algorithm, and ensures trusted authentication. The two-way authentication protocol between the cluster head and the base station, and the one-way authentication protocol between the base station and the sensor node are designed to effectively simplify the authentication process of sensor nodes, which further guarantees the security and speed of user authentication and effectively meets the security, reliability, and convenience requirements of the Internet of Things. Simulation experiments show that the schema can achieve efficient information verification, and the identity authentication time and protocol authentication times are only 23.58 ms and 25.06 ms, respectively, which has obvious performance advantages over the Paillier algorithm, the hybrid Paillier-blowfish algorithm, and the ElGamal algorithm.
A Crime Scene Reconstruction for Digital Forensic Analysis
Authors: Nicho Mathew , Alblooki Maha , AlMutiwei Saeed , McDermott Christopher D. , Ilesanmi Olufemi
Published: July 2023

The abundance of digital data within modern vehicles makes digital vehicle forensics (DVF) a promising subfield of digital forensics (DF), with significant potential for investigations. In this research, the authors apply DVF methodology to a SUV, simulating a real case by extracting and analyzing the data in the period leading up to an incident to evaluate the effectiveness of DVF in solving crime. The authors employ DVF approach to extract data to reveal evidential information for judicial evaluation and verdict. This data helped determine whether the incident represented an accident or an act of crime. This simulated case and the assumptions supported by the DVF evidence provides a compelling example of how law enforcement agencies can leverage DVF to collect and present evidence to relevant authorities. This form of forensics can assist government in planning for and regulating the deployment of DVF data, the judiciary in assessing the nature and admissibility of evidence, and vehicle manufacturers in complying with the regulations relating to the harvesting and retrieval of data.
A Ten-Year Bibliometric Analysis of E-Learning in English as a Foreign Language (EFL) Context
Authors: Chen Feifei
Published: July 2023

This bibliometric study offers a comprehensive overview of e-learning research landscape in English as a foreign language (EFL) context, including the publication trend, country contributions and collaboration, productive authors and journals, and key topics of interest. Through a thorough review of 602 documents extracted from the Scopus database from 2013-2022 using VOSviewer, Excel, and Tableau, the study reveals a significant increase in e-learning publications since 2020, with China, Saudi Arabia, and Indonesia emerging as the leading contributors and collaborators. The study further identifies the most productive authors and journals and highlights six key topics, including the effectiveness of e-learning, learners' perceptions, mobile learning, e-education during COVID-19, Chinese EFL teachers, and teacher education. The study provides innovative insights for EFL practitioners, researchers, and policymakers, and contributes to the general knowledge about the hotspots and frontiers of literature in the e-learning landscape of the EFL context.
A Prediction Model for Electric Vehicle Sales Using Machine Learning Approaches
Authors: Yeh Jen-Yin , Wang Yu-Ting
Published: July 2023

The electric vehicle (EV) market is booming, but EV market trends vary by region. This study draws on the environmental, economic, and human development factors of 31 countries to predict sales of EVs. Based on machine learning (ML) algorithms and the PLS method, the authors constructed an EV sales performance prediction model and carried out the experiments. The experimental results demonstrate that ML algorithms can effectively achieve the desired accuracy and predictive performance levels. At the same time, this study investigates the relationship between quality training indicators and EV sales. CO2 emissions, PM2.5, consumer price index (CPI), renewable energy, and life expectancy are found to be significantly positive related to EV sales. The proposed model can be used globally by governments as a decision support tool to impose policies encouraging the adoption of EVs and develop sustainable strategies.
Review of Carbon Nanotube Toxicity and Evaluation of Possible Implications to Occupational and Environmental Health
Authors: Aldosari Haia
Published: July 2023

Carbon nanotubes (CNTs) are nanostructures made from rolled graphene planes and have several intriguing chemical and physical characteristics. Allotropes of carbon having a nanostructure that can have a length-to-diameter ratio greater than 1,000,000 are known as carbon nanotubes (CNTs). These cylindrical carbon molecules have unique features that could make them valuable in a variety of nanotechnology applications. Their distinct surface area, stiffness, strength, and durability have generated a significant amount of interest in the health industry to achieve bio-functionalities, CNTs can be connected with a variety of biological substances, such as hormones, proteins, and nucleic acids. There are two types of CNTs: single-walled (SWNTs) and multi-walled (MWNTs). Their high aspect ratio, ultralightweight, strength, strong thermal conductivity, and electrical properties ranging from metallic to semiconducting are just a few of their intriguing characteristics. Drug delivery, blood cancer, breast cancer, brain cancer, liver cancer, cervical cancer, immunological treatment, biomedical imaging, biosensors, and tissue engineering are all areas where CNTs are beneficial, and the toxicology of carbon nanotubes is also discussed here.
Performance Improvement of Dye-Sensitized Solar Cells Using a Combination of TiO2 and ZnO as Photoanodes
Authors: Nurazizah Euis Siti , Fajariah Amalia Rohmah , Aprilia Annisa , Safriani Lusi
Published: July 2023

TiO2 are usually used as photoanode to get high-performance dye-sensitized solar cells (DSSCs). TiO2 has good chemical stability, but still has poor electron mobility so that the DSSC efficiency is low. An alternative semiconductor metal-oxides such as ZnO currently are being explored due to ease of processing, higher electron mobility, interface band energetics, and can be utilized as photoanode also, but the chemical stability is low. Based on these facts, by combining the advantages of TiO2 and ZnO, the TiO2:ZnO composite can be an ideal material as a photoanode in DSSC. In this study, composite of TiO2:ZnO was synthesized using sol-gel method with ratio of TiO2 to ZnO were varied from 80:20, 60:40, 50:50, 40:60, and 20:80 in atomic percent. DSSCs were fabricated by coating the photoanode using screen-printing technique on a FTO-glass substrate. Composite of TiO2:ZnO photoanodes were then sensitized in a solution of N719 dye for several hours. Finally, the DSSCs were assembled and the power conversion efficiency was measured using an I–V measurement system. The highest power conversion efficiency of 2.30% was obtained from the cell fabricated with TiO2:ZnO (50:50) photoanode. This result indicated that the balanced composition allowed to increase Jsc along with reducing recombination process and retaining high dye-loading capability.
NaFePO4 Particles as a Cathode of Sodium Ion-Battery via Sol-Gel Method: A Review on Synthesis
Authors: Astuti Fahmi , Oeza Bobby Refokry , Rahmawati Eka Septi , Darminto Darminto
Published: July 2023

NaFePO4, which is analogue to LiFePO4, has been expected to show similar properties as LiFePO4 that has a good cycle stability and excellent electrochemical performances. Here we report the synthesis of NaFePO4 via sol-gel method and the structural study of NaFePO4 as a cathode material for sodium-ion battery (SIB). The as-synthesized NaFePO4 samples were calcined under air and argon atmosphere at the constant holding time of 10 hours with the variation of calcined temperature. In this report, we present the successfully synthesized NaFePO4 based on XRD and SEM result. XRD results show the presence of NaFePO4 as a major phase and some amount of secondary phase. SEM result indicates the plate-like particle which tends to agglomerate with the size range 2-5 .
Factors Affecting Bias Temperature Instability in 4H-SiC MOS Capacitors
Authors: Wang Kai Yu , Wan Cai Ping , Lu Wen Hao , Ge Nian Nian , Xu Heng Yu
Published: July 2023

The threshold voltage of 4H-SiC metal-oxide-semiconductor field-effect transistors (MOSFETs) show instability during normal operation, especially after bias temperature stress (BTS), and this phenomenon is called bias temperature instability (BTI). In this work, to study the factors affecting threshold voltage (Vth) instability of SiC MOSFETs, flat-band voltage (Vfb) instability of 4H-SiC metal-oxide-semiconductor (MOS) capacitors is discussed instead. Some factors, including the polarity of gate bias stress, stress time, and stress temperature, are analyzed by performing one-way bias stress C-V measurements in the devices. Firstly, positive bias stress leads to a positive Vfb shift, and negative bias stress leads to a negative one. Moreover, the Vfb shift appears to exhibit a linear relationship with log (stress time). Furthermore, the Vfb shift decreases over the temperature range of 225 K to 400 K, but slightly increases at 475 K. Finally, the Vfb stability of the MOS devices fabricated by 1200 °C NO post-oxidation annealing (POA) and those fabricated by 1250 °C NO POA is similar.
Hierarchical Nitrogen Nanoporous Carbons by Surfactant-Assisted Synthesis of Zeolitic-Imidazolate Frameworks for High Performance Supercapacitor
Authors: Khalifa Aya , Ebrahim Shaker , El Said Ahmed , Ayad Mohamad M.
Published: July 2023

Nitrogen-doped porous carbons (NPCs) derived from zeolitic imidazolate frameworks (ZIFs) are promising in a wide variety of applications, especially in electrochemical energy storage applications, due to their outstanding physical and chemical properties. Herein, the effect of different types of surfactants as capping agents on the morphology and surface activity of ZIF-derived NPCs was investigated. A series of NPCs were prepared by direct carbonization of ZIF-8 under an inert atmosphere in the presence of capping agents. MOF-derived NPCs with capping agents exhibited accessible pore aperture and relatively high nitrogen content. This affects the textural characteristics of NPCs in terms of morphology, particle size, and surface activity. All the samples were characterized by transmission electron microscope (TEM), scanning electron microscope (SEM), and X-ray diffraction (XRD) technique. The influence of variation of specific surface area of ZIF-8-derived NPCs on its electrochemical properties was investigated. Additionally, the surface charge of the various samples was estimated by point of zero charges (pHPZC) to find the optimal processing parameters and enhance the capacitive properties. The estimated experimental results showed the optimum results obtained by a higher specific surface areas NPCs prepared with the present of SDS as capping agent with specific surface area 967.5 m2/g and larger pore volume 0.78 cm3 /g, the point of zero charge 7.94 and the specific capacitance in 1.0 M H2SO4 is 490.96 F/g.
Evaluation of Novel Prosthesis Implant Adapter by Finite Element Analysis
Authors: Jamal Marwa J. , Hamandi Sadiq J. , Arbilei Marwan N.
Published: July 2023

Osseointegration prosthesis is a directly implanted fixation in the bone for limb amputees. It has been used as an excellent alternative for amputees experiencing difficulties from the use of a traditional socket type prosthesis. A novel implant used for implanted prosthetics is designed and it depended on polymer as a primary material to increase bone osseointegration. As an alternative to the metallic material on the interface with the bone. The design consists of several parts and relies on thread to increase installation. This research aims to overcome the problems of loss implantation by using new designs for fixations. Evaluated this design by FEA (Finite element analysis) in different load cases to obtain the distribution of stress and force reaction when the implant displacement was applied. The polymeric part was designed in two shapes, each shape relies on a different size of threaded to verify the change of fixation with the threaded. As for the metal part, two cases were used, the first case, stainless steel 316L, and the second case titanium metal to reach the best stress distribution in this design.
Scaffold of Bone Tissue Engineering Based on PVA/BCP Bioactive Composite Foam
Authors: Hashim Furqan Salim , Hussain Wafaa A. , Ismail Mukhlis M. , Amr Ahmed A. , Daham Abdulqadher M. , Alwan Luay H.
Published: July 2023

This study constructed poly (vinyl alcohol)/ biphasic-calcium phosphate (PVA/ BCP) composite scaffolds. The biphasic-calcium phosphate (BCP) was incorporated in 0, 5, 10, and 25 wt%; BP0, BP1, BP2, and BP3, respectively. The surface morphology was done with a scanning electron microscope (SEM) to observe the porosity and the pore size and distribution of fabricated samples. The Fourier Transform Infrared spectroscopy (FTIR), and some physical properties such as porosity, density, swelling ratio, flexural strength, impact strength, and compression strength were also investigated. The biodegradation and bioactivity were also tested. The SEM results showed that the pores increased and became more regular and interconnected to each other with the increasing addition of BCP. The density decreased with the addition of BCP, while the porosity and mechanical properties increased with additives. The sample of BP3 has a high porosity (67%) and high impact strength (11.9 MPa). The high porosity is favorable for bone implants, and the mechanical strength must also be considered. The bio tests show that the biodegradation became regular by adding the BCP powder, which leads to ease of controlling the gradual degradation and the samples are bioactive for bone tissue. Keywords: Bone Tissue Engineering, PVA, Biphasic-Calcium Phosphate, Porosity, Mechanical properties
Photovoltaic Characteristics of the a-C/a-C:B Homojunction from Palmyra Sugar with Nano-Spray Method
Authors: Priyanto Budhi , Khambali Imam , Chasrun M.H. , Darminto
Published: July 2023

The a-C/a-C:B homojunction of palmyra sugar has been successfully fabricated using the nanospray method. Palmyra sugar was chosen as the main source of carbon because it is cheap, renewable, abundant and available around the clock. nanospray is used as a deposition method on glass ITO substrates because of several advantages, namely cheap, easy, portable, low power consumption, the deposited layer is more evenly distributed and thinner. Junction samples when in bright conditions [emitted light] showed an increase in current and voltage values ​​compared to dark conditions. Testing the current and voltage of the junction sample shows the characteristics of a rectifier diode. This confirms the results of the test using PES as a doping process with amorphous carbon with boron capable of changing the conduction type from a-C from an intrinsic semiconductor to a p-type semiconductor. Testing the junction sample when irradiated with visible light using a lamp shows symptoms of the photovoltaic effect. Tests directly on the sun when conditions AM 1.5 samples showed symptoms of the photovoltaic effect. This indicates that the a-C/a-C:B amorphous carbon homojunction junction sample functions as a solar cell.
Impact of economic crisis on sustainability of performances in high-rise residential buildings in Colombo urban area
Authors: Wickremasinghe H. T. , Dushmila D.
Published: July 2023

Economic crisis is one of the most important concepts in considering economic growth and development. It affects all sectors including housing in a country. With accelerating urbanization, high-rise residential buildings have become the solution for the increasing housing demand in urban areas. Consequently, number of such buildings have emerged around the world during the past decade. As many people inhabited these residential buildings, providing required facilities continuously is vital. Thus, the performances of these properties are required to be maintained at a standard level. However, it can be challenging to do during an economic crisis. Despite the large amount of research devoted to examining the impact of economic crisis on housing sector, the insights on its impact on sustainable performance pertaining to high-rise residential buildings are rare. Therefore, this study aimed at examining the impact of economic crisis on the sustainability of performances in high-rise residential buildings in Colombo urban area. Using inductive approach and qualitative method, primary data were collected from representatives of management corporations of seven high-rise residential properties located in Colombo. Collected data were analysed using descriptive analysis, content analysis methods and Operating Model Canvas developed as the theoretical basis. Study findings revealed that all the selected buildings were equipped with all the required services for expected performances. Moreover, air conditioning, intercom, waste water disposal, cleaning service and garbage collection are the leading performances that have been negatively affected by consequences of economic crisis mainly due to fuel shortage and power failure.
Combined effect of medical therapy and rehabilitation in Chronic Ataxic Neuropathy with anti-Disialosyl IgM Antibodies (CANDA): a case report
Authors: Balestro Giulio , Picelli Alessandro , Ortolani Luca , Marcante Andrea
Published: July 2023

Chronic Ataxic Neuropathy with anti-Disialosyl IgM Antibodies (CANDA) is a rare form of immune-mediated sensory ataxic neuropathy. We describe the case of a 45-year-old man, who was diagnosed with CANDA in October 2018. Since then, he has been treated with monthly courses of intravenous immunoglobulin administration (IV Ig) and, in October 2022, he underwent plasmapheresis, reporting a sudden worsening of clinical and motor picture. After a new IV Ig cycle admission, the patient was hospitalized to perform intensive rehabilitation, involving two individual sessions per day (90 minutes each) for 5 days a week. During hospitalization it was registered a relevant improvement in the muscle strength of the lower limbs (LLs). Furthermore, progressive improvements were recorded both in patient's motor performance and in his level of autonomy in activities of daily living. These results had a positive impact on his quality of life and made it possible to reduce the frequency of IV Ig treatments. This is the first case in literature reporting the combined effect of rehabilitation treatment and medical therapy in CANDA neuropathy.
Residual Deficits in Reactive Strength After Anterior Cruciate Ligament Reconstruction in Soccer Players
Authors: Read Paul J. , Davies William T. , Bishop Chris , McAuliffe Sean , Wilson Mathew G. , Turner Anthony N.
Published: July 2023

Context

Deficits in plyometric abilities are common after anterior cruciate ligament reconstruction (ACLR). Vertical rebound tasks may provide a targeted evaluation of knee function.

Objective

To examine the utility of a vertical hop test for assessing function after ACLR and establishing factors associated with performance.

Design

Cross-sectional study.

Setting

Rehabilitation program.

Patients or Other Participants

Soccer players with a history of ACLR (n = 73) and matched control individuals (n = 195).

Main Outcome Measure(s)

The 10-second vertical hop test provided measures of jump height, the Reactive Strength Index (RSI), and asymmetry. We also examined possible predictors of hop performance, including single-legged vertical drop jump, isokinetic knee-extension strength, and the International Knee Documentation Committee questionnaire score.

Results

Between-limbs differences were identified only for the ACLR group, and asymmetry scores increased in those with a history of ACLR (P < .001) compared with the control group. The single-legged vertical drop jump, RSI, and knee-extension torque were significant predictors of 10-second hop height (R2 = 20.1%) and RSI (R2 = 47.1%).

Conclusions

Vertical hop deficits were present after ACLR, even after participants completed a comprehensive rehabilitation program. This may have been due to reduced knee-extension and reactive strength. Vertical hop tests warrant inclusion as part of the return-to-sport test battery.
Retinal displacement following successful pars plana vitrectomy for rhegmatogenous retinal detachment
Authors: Ali Amr L. , Serag Yasser R. , ElToukhy Hesham M. , Gaber Raouf , Wasfy Tamer E.
Published: July 2023

Background

The appearance of hyperfluorescent lines next to the retinal blood vessels after successful retinal detachment (RD) surgery was explained by the occurrence of retinal displacement. This can attribute to the metamorphopsia experienced by some patients after their surgeries.

Patients and methods

A prospective interventional study was performed that included 30 eyes of 30 patients with primary rhegmatogenous RD, who had undergone successful RD surgery via pars plana vitrectomy and silicone oil tamponade. The entire patients had preoperative and postoperative fundus autofluorescence and optical coherence tomography. They were followed up for 3 months after surgery with testing of the best-corrected visual acuity and Amsler grid testing.

Results

The mean age of the included group was 53.7±9.2 years, and 17 (56.7%) patients were males. The most frequent tear site was upper temporal (43.3%), followed by multiple peripheral (23.33%), upper nasal (13.3%), lower temporal (13.3%), and the least was lower nasal (6.7%). Retinal displacement was detected by hyperfluorescent lines adjacent to the retinal blood vessels in the fundus autofluorescence imaging in 16 eyes (53.3% with 95% confidence interval: 36.7–70.0%). Patients with retinal displacement were significantly younger than patients without (P=0.019). The presence of proliferative vitreoretinopathy was significantly related to the occurrence of displacement (P=0.028). Metamorphopsia was significantly more frequent among patients with displacement (P<0.001).

Conclusion

Retinal displacement had a high possibility to occur after successful repair of primary rhegmatogenous RD. Young patients and patients with proliferative vitreoretinopathy are at a higher risk for displacement.
Evaluation of DMEK with secondary IOL implantation in cases of aphakic bullous keratopathy
Authors: Galal Amr S. , Seleet Moumen M. , Kabeel Mohamed A. , Swar Ayman H.
Published: July 2023

Context

DMEK is used to treat corneal decompensation. This study focuses on the succcess and outcome of DMEK with and without secondary IOL implantation.

Aims

The purpose of our work is to evaluate Descemet membrane endothelial keratoplasty (DMEK) with secondary Intraocular lens (IOL) implantation in cases of aphakic bullous keratopathy with insufficient capsular support.

Settings and design

Pilot study.

Methods and material

This was a nonrandomized comparative prospective interventional case series where 11 eyes of 11 patients with aphakic bullous keratopathy secondary to complicated cataract surgery underwent DMEK with secondary IOL implantation using modified Yamane technique, and results were compared to 11 eyes of 11 patients underwent DMEK only.

Statistical analysis used

The statistical analysis was conducted using the Statistical Package for Social Sciences (SPSS 15.0.1 for windows; SPSS Inc, Chicago, IL, 2001).

Results

Both groups showed a high success rate (81.8%) with rebubbling required in 3 eyes in both groups. Both groups also showed significantly improved BCVA, decreased CCT and a decrease in donor graft ECD.

Conclusions

DMEK combined with secondary IOL implantation by modified Yamane technique appears to be a feasible method in managing aphakic bullos keratopathy with inadequate capsular support, and results are comparable to DMEK alone.
A prospective cohort study on glucose variability and clinical outcomes in comatose children due to acute central nervous system infections admitted in the pediatric intensive care unit
Authors: Karunakar Pediredla , Rameshkumar Ramachandran , Chidambaram Muthu , Delhikumar Chinnaiah Govindhareddy , Selvan Tamil , Mahadevan Subramanian
Published: July 2023

Background:

Pediatric acute central nervous system (CNS) infections are associated with severe neuromorbidity. This study aimed to study the effect of glucose variability on clinical outcomes in comatose children due to acute CNS infections admitted in pediatric intensive care unit (PICU).

Subjects and Methods:

A prospective cohort study enrolled comatose children aged 1 month to 12 years due to acute CNS infection. Within 6 h, continuous glucose monitoring was started (Freestyle Libre Pro, Abbott). The unit practice was targeting blood glucose (BG, mg/dL) of <140–145. The hyperglycemic index was calculated to estimate the relative time spent above BG of >126, >140, >180, >200, and <60. Glucose variability was defined as BG fluctuation, with both hypoglycemia (<60) and hyperglycemia (>126). The primary outcome was new-onset organ dysfunction. The secondary outcomes were organ support, length of mechanical ventilation, hospital (including PICU) stay, and 90-day composite poor outcome (mortality or severe neurodisability).

Results:

Total BG values measured were 27,792 from 66 patients (mean [standard deviation (SD)] 421.1 [212.6] values per patient). The mean (SD) BG was 103.2 (37.7) (minimum: 42.1; maximum: 228.8). The new-onset organ dysfunction has occurred in 83.3% (n = 55/66), and no difference was noted among normoglycemic and abnormal glycemic groups (84.4% vs. 80.9%; relative risk = 1.09, 95% confidence interval: 0.67–1.76). The median (interquartile range) PICU stay (days) was higher in the normoglycemic group (7, 5–14 vs. 4, 3.5–8.5; P = 0.014). No difference was noted in other outcomes.

Conclusions:

Glucose variability was not significantly associated with new-onset organ dysfunction and poor outcome in comatose children due to acute CNS infections.
Use of positive end-expiratory pressure titration and recruitment maneuvers in pediatric intensive care unit – A narrative review
Authors: Sachdev Anil , Kumar Pradeep , Ashif Mohammed
Published: July 2023

Mechanical ventilation is a lifesaving support for patients suffering with acute respiratory distress syndrome. This modality is likely to cause ventilator-induced lung injury if not used judiciously and appropriately. Lung protective ventilation strategy is routinely practiced in adult and pediatric intensive care units. Positive end-expiratory pressure (PEEP) and recruitment maneuvers (RMs) are used in “Open Lung Ventilation” strategy and to keep the lung open. PEEP is applied to recruit collapsed alveoli to improve oxygenation, compliance, reduce tidal stress, and strain on the lungs and to promote homogenous lung ventilation. There is no agreement on methods to set “Best PEEP” for a particular patient. There are many approaches described in published literature to optimize PEEP. PEEP titration may be done with PEEP/FiO2 grid, targeted compliance, driving pressure, by using pressure-volume curve and stress index. Esophageal manometry and measurement of end-expiratory lung volume may be used if special equipment, machines, and expertise are available. No single method of PEEP titration has been shown to improve outcome. RM is characterised by sudden transient increase in transpulmonary pressure. Different RMs including high-frequency oscillator ventilation and prone position ventilation have been studied in adults and pediatric patients with very conflicting results and inconsistent survival benefits. Serious complications, hemodynamic instability, air leak syndrome, transient, or no improvements in oxygenation are reported. In this narrative review, we have discussed different methods of PEEP titration and RMs and available evidence for each especially in children.
Lobbying y medios de comunicación. Análisis de la cobertura periodística de los lobbies en España
Authors: Moreno Cabanillas Andrea , Castillo Esparcia Antonio , Castillero Ostio Elizabet
Published: July 2023

Introducción: La comunicación política es un ámbito de máxima relevancia en la construcción de espacios de discusión pública y es un fundamento para las organizaciones en la dirección de estrategias de comunicación y sus técnicas para una adecuada interacción entre organizaciones y sus públicos (Almansa-Martínez y Fernández-Souto, 2020; Castillo-Esparcia et al., 2020). El lobbying es una forma de comunicación que busca influir en los procesos de toma de decisión de las instituciones públicas en aquellos temas de interés para las organizaciones. (Castillo-Esparcia, 2011). Metodología: En este sentido la propuesta persigue conocer cuál es el tratamiento de los lobbies en la prensa española. Para ello se lleva a cabo una metodología cuantitativa mediante un análisis de contenido que permitirá saber el número de noticias y la tipología más incluida en los principales diarios españoles genéricos como ABC, El País, El Mundo, y dos especializados como son Cinco Días y Expansión en los últimos seis años, desde 2017-2022. Resultados: Se puede establecer que son los periódicos generalistas quienes más publicaciones generan sobre lobbies. Discusión: Atendiendo a estudios anteriores (Castillo-Esparcia et al., 2017), la presencia de los lobbies en los medios de comunicación sigue siendo evidente y constante como se ha podido observar en el estudio de campo realizado Conclusiones: se observa que los grupos de presión utilizan los medios de comunicación como herramienta transmisora de presión hacia los gobernantes para ejercer influencia indirecta sobre las decisiones de política pública, obligando a los responsables políticos a escuchar la opinión mayoritaria de la sociedad.
A Countrywide Seroepidemiological Survey of Rift Valley Fever in Livestock, Uganda, 2017
Authors: Nyakarahuka Luke , Kyondo Jackson , Telford Carson , Whitesell Amy , Tumusiime Alex , Mulei Sophia , Baluku Jimmy , Cossaboom Caitlin M. , Cannon Deborah L. , Montgomery Joel M. , Lutwama Julius J. , Nichol Stuart T. , Balinandi Stephen , Klena John D. , Shoemaker Trevor R.
Published: July 2023

In 2016, an outbreak of Rift Valley fever was reported in the Kabale District in Uganda for the first time in 48 years. Three human cases were confirmed by polymerase chain reaction, and subsequent serological investigations revealed an overall IgG seropositivity of 13% in humans and 13% in animals. In response to this reemergence, we designed a countrywide survey to determine the seropositivity of anti-Rift Valley fever virus (RVFV) IgG antibodies in livestock. Samples were collected from 27 districts and tested for RVFV anti-IgG antibodies. A total of 3,181 livestock samples were tested, of which 54.4% were cattle (1,732 of 3,181), 34.3% were goats (1,091 of 3,181), and 11.3% were sheep (358 of 3,181). Overall RVFV seropositivity was 6.9% (221 of 3,181). Seroprevalence was greater in cattle (10.7%) compared with goats (2.6%) and sheep (2.0%), among females (7.5%) compared with males (5.2%), and among adults (7.6%) compared with juveniles (4.9%) and nurslings (6.4%). Exotic breeds and animals with a history of abortion or stillbirth also had greater odds of RVFV seropositivity. Animals grazed under tethering and paddocking had greater RVFV seropositivity compared with animals that grazed communally, and livestock in the western and eastern regions had the greatest seroprevalence. In a multivariate regression model, animal species (odds ratio [OR], 6.4; 95% CI, 3.5–11.4) and age (OR, 2.3; 95% CI, 1.4–3.6) were associated significantly with RVFV seropositivity. This study could be important in developing risk-based surveillance for early outbreak detection to limit the spread of RVFV in both human and animal populations.
Prevalence of SARS-CoV-2 Variants and Disease Outcome of COVID-19 Patients in the Amazonas Region of Peru
Authors: Campos Christian J. , Pajuelo-Reyes Cecilia , Rojas Luis M. , De La Cruz-Vargas Jhony A. , Tejedo Juan R. , Tapia-Limonchi Rafael , Tsukayama Pablo , Chenet Stella M.
Published: July 2023

Peru was severely affected by COVID-19 with a fatality rate that reached up to 6%. In this study, the relationship between SARS-CoV-2 variants and COVID-19 disease outcome in Amazonas, a region of northeastern Peru, was evaluated. The variants were determined by genomic sequencing, and clinical-epidemiological data were collected from 590 patients between April 2021 and February 2022. There was no association between mortality and hospitalization with any of the variants, but we did find that Omicron is more likely to infect vaccinated and nonvaccinated people. A significant association was also found between unvaccinated patients and hospitalization. Interestingly, in the indigenous population, there were fewer hospitalizations than in the general population. In conclusion, SARS-CoV-2 variants were not associated with the disease outcome in the Amazonas region, and indigenous population were found to be less vulnerable to severe COVID-19 illness.
MARKETING ACTIVITIES OF ENTERPRISES OF THE AGRO-INDUSTRIAL SECTOR IN THE CONDITIONS OF WAR
Authors: Bondarenko Valerii , Barylovych Olena , Helevei Oleksandr , Skakun Oleksandr , Heraimovych Violeta , Korniіchuk Tymofii , Lutsii Olexander , Lutsii Ivan , Lutsii Olexandr , Nahorna Olena , Ostapchuk Anatolii , Riabchyk Alla , Vyshnivska Bogdana , Zbarskyi Vasyl
Published: July 2023

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Misconceptions of the Sabbath as Rest: The Social Interpretation of Exodus 23:1-12 and Its Relevance
Authors: Kelelufna Jusuf Haries , Warella Sipora Blandina , Patty Brayen Aliong , Gaszpers Dery Anthon , Noya Yohanis Sefwin
Published: July 2023

This article is driven by the many problems related to Sunday activities and land problems in the Moluccas. According to J.H Elliott, the authors analyze the text of Exodus 23:1–12 using the social sciences critique method. Meanwhile, the theory used as an analytical tool is the Structural-Functional theory proposed by Emile Durkheim and Jean Jacques Rousseau’s social contract theory. The results of the analysis are then discussed in relation to the church context in the Moluccas. The study's results found that originally, Sabbath meant to rest within the context of work. "Work," as understood by the concept of Sabbath, means working with God in promoting social care, economic sustainability, and environmental concern. Misunderstandings of the Sabbath as Rest cause certain elements in the structure of Moluccan society not to function as they should because the Sabbath is misconstrued to perpetuate laziness, ignore others, hinder economic growth, and ignore the environment. In actuality, the Sabbath provides balance, not only balancing work with rest but also balancing rest with work. The Sabbath needs to be interpreted as 'working' in the context of communion with God, social care, guaranteeing economic sustainability, and concern for the environment. Local wisdom and regional culture as a social contract are still necessary in caring for humanity and preserving the territory, so such local wisdom and particular aspects of regional culture must be preserved and strengthened.
Theological Perspectives on Responses to Prayer Requests in WhatsApp Groups
Authors: Nggebu Sostenis , Buyung Yopie F.M. , Wood Alan
Published: July 2023

The problem of this article speaks the importance of the essence of prayer in the Christian life. Praying is a valuable opportunity for believers. Humans can ask God for help with their life problems. Praying can be seen as a special place for believers to build close relationships with God. They can also utilise any technology service to connect and pray for each other such as through calling, sending letters or newsletters, and WhatsApp Group contemporary communication facilities. Through praying for each other, people are interconnected and dependent on God. The method used in this study is a descriptive method. Researchers investigate the text of Bible verses related to the importance of praying for others. This approach is taken to lay the Christian theological basis of prayer. The results show that praying for others is a Christian character. Because Christians are commanded by Christ to pray for each other. Praying for others reflects a Christian character that is firmly inherent in believers. Believers who submit prayer support show the plea is urgent and urgent. That need must be answered by responding and praying for it. In today's context, WhatsApp Group facilities can be used as an effective and communicative means to convey prayer requests to and from others. The request encourages believers with sincere hearts to be enterprising and pray for each other.
Application of Shepherd Leadership to the Spiritual Growth of Christian Youth in the Digital Age
Authors: Imbing Roy , Pandie Remegises Danial Yohanis
Published: July 2023

Writing this article aims to describe the pastor's strategy in educating, fostering and guiding young people to experience spiritual growth. This article refers to the role of pastors in formulating the right strategy to solve the spiritual problems of young people which are slowly declining due to the pace of technology. Where, young people ignore worship and other spiritual activities such as a lack of interest in worship both in public worship, household worship, youth worship, and worship activities on church holidays. The, method used in this research is literature study which refers to references related to the topic raised. In this study, the authors found that pastors have a strategy to apply their leadership to grow the spirituality of youth through Teaching God's Word with contextual topics, Bible study, coaching and guidance through counseling and the use of digital media. The achievement of pastoral leadership in the spiritual growth of young people is seen in terms of their quality of life. The proof of the spiritual growth of young people is that they will be diligent in participating in fellowship services at church and are able to practice the value of the truth of God's Word to their surroundings.