bluuebunny/crossref_metadata_2025 huggingface dataset:
Rate and setting of neurodevelopmental and psychosocial encounters for children with CHD
Authors: Bohnhoff James C. , Cutler Anya , Price Julia , Ahrens Katherine , Gabrielson Sarah M.B. , Hathaway Warren , Miller Thomas A.
Published: December 2024

Background:

In North America, less than 30% of children with complex CHD receive recommended follow-up for neurodevelopmental and psychosocial care. While rates of follow-up care at surgical centres have been described, little is known about similar services outside of surgical centres.

Methods:

This cohort study used Maine Health Data Organization’s All Payer Claims Data from 2015 to 2019 to identify developmental and psychosocial-related encounters received by children 0–18 years of age with complex CHD. Encounters were classified as developmental, psychological, and neuropsychological testing, mental health assessment interventions, and health and behaviour assessments and interventions. We analysed the association of demographic and clinical characteristics of children and the receipt of any encounter.

Results:

Of 799 unique children with complex CHD (57% male, 56% Medicaid, and 64% rural), 185 (23%) had at least one developmental or psychosocial encounter. Only 13 children (1.6%) received such care at a surgical centre. Developmental testing took place at a mix of community clinics/private practices (39%), state-based programmes (31%), and hospital-affiliated clinics (28%) with most encounters billing Medicaid (86%). Health and behavioural assessments occurred exclusively at hospital-affiliated clinics, predominately with Medicaid claims (82%). Encounters for mental health interventions, however, occurred in mostly community clinics/private practices (80%) with the majority of encounters billing commercial insurance (64%).

Conclusion:

Children with complex CHD in Maine access developmental and psychosocial services in locations beyond surgical centres. To better support the neurodevelopmental outcomes of their patients, CHD centres should build partnerships with these external providers.
The Prehospital and Disaster Medicine Mission Statement
Authors: Franc Jeffrey Michael
Published: December 2024

This article discusses changes to the Prehospital and Disaster Medicine (PDM) mission statement which will take effect as of January 1, 2025. The new mission statement focuses on innovative, high-impact, evidence-based research.
Risk Factor for Child Maltreatment at 3 Years of Age in Japanese Multiples and Singletons: A Population-Based Study
Authors: Yokoyama Yoshie , Ogata Yasue , Silventoinen Karri
Published: December 2024

We evaluated the prevalence and risk factors for child maltreatment in multiples aged 3 years and compared them to singletons in Japanese population-based data. Records on child maltreatment and health check-ups at 3 years of age from 17,125 singletons, 488 twins and 18 triplets were collected from a Public Health Center between April 2007 and March 2011. The associations of child maltreatment with potential risk factors were analyzed using the logistic regression model. Out of all children, 76 (4.31 per 1000) children had documented maltreatment including 69 (4.03 per 1000) singletons and seven (14.31 per 1000) twins. All of the cases in twins were physical abuse (100%) and nearly half of the cases (43%) included emotional abuse. Among twins, 86% of the biological mothers were suspected. The alleged perpetrators of twins showed a significantly higher rate of maternal depression compared to those of singletons. After adjusting the results for a number of potential biological and social risk factors, twins or triplets had a higher risk for maltreatment than singletons (OR 3.39, 95% CI [1.17, 9.83]). Healthcare providers should be aware that a multiple birth can place considerable stress on a family leading to child maltreatment and should provide appropriate support and intervention for mothers with multiples.
Polygenic Selection and Environmental Influence on Adult Body Height: Genetic and Living Standard Contributions Across Diverse Populations
Authors: Piffer Davide , Kirkegaard Emil O.W.
Published: December 2024

We analyzed whole-genome sequencing (WGS) data from 51 populations and combined WGS and array data from 89 populations. Multiple types of polygenic scores (PGS) were employed, derived from multi-ancestry, between-family genome-wide association study (GWAS; MIX-Height), European-ancestry, between-family GWAS (EUR-Height), and European-ancestry siblings GWAS (SIB-Height). Our findings demonstrate that both genetic and environmental factors significantly influence adult body height between populations. Models that included both genetic and environmental predictors best explained population differences in adult body height, with the MIX-Height PGS and environmental factors (Human Development Index [HDI] + per capita caloric intake) achieving an R2 of .83. Our findings shed light on Deaton’s ‘African paradox’, which noted the relatively tall stature of African populations despite poor nutrition and childhood health. Contrary to Deaton’s hypotheses, we demonstrate that both genetic differences and environmental factors significantly influence body height in countries with high infant mortality rates. This suggests that the observed tall stature in African populations can be attributed, in part, to a high genetic predisposition for body height. Furthermore, tests of divergent selection based on the QST (i.e., standardized measure of the genetic differentiation of a quantitative trait among populations) and FST (neutral marker loci) measures exceeded neutral expectations, reaching statistical significance (p < .01) with the MIX-Height PGS but not with the SIB-Height PGS. This result indicates potential selective pressures on body height-related genetic variants across populations.
Phytoplankton Chlorophyll Trends in the Arctic at the Local, Regional, and Pan‐Arctic Scales (1998–2022)
Authors: Serra‐Pompei Camila , Dutkiewicz Stephanie
Published: December 2024

We analyzed the temporal trends (1998–2022) of surface phytoplankton Chlorophyll (Chl) concentration in the Arctic at the local, regional, and pan‐Arctic scales. We used four empirically derived Chl satellite ocean color products: two global merged products and two MODIS products, one calibrated to the Arctic. At the local level, between 10% and 40% of the area with valid pixels showed statistically significant Chl trends, with of those pixels showing increases, and the other third indicating a decrease. At the regional level, only the Barents and Chukchi Seas had consistent Chl increases across products. At the pan‐Arctic level, most products showed Chl increases in the months of July and September (0.3%–0.9% Chl ), even after removing the effect of new open water pixels. Overall, Chl is changing in the Arctic, although trends vary threefold depending on the product and spatial‐averaging assumptions used.
The Influence of Arctic Oscillation on South China Precipitation in Winter Is Modulated by the Atlantic Multidecadal Oscillation
Authors: Liu Jinhong , Xue Jiaqing , Gao Yuan , Zhu Hualong
Published: December 2024

As the dominant mode of low‐frequency atmospheric variability in extratropical Northern Hemisphere, the Arctic Oscillation (AO) exerts strong impacts on East Asian climate, with the positive AO leading to increased South China winter precipitation (SCWP). Here, we find that such AO–SCWP relationship is nonstationary and controlled by the remote Atlantic Multidecadal Oscillation (AMO). Especially, the relationship between positive AO and SCWP is significantly weakened during the warm phase of AMO. Observational analyses and idealized Atlantic pacemaker simulations indicate that warm AMO forcing is accompanied by a teleconnection wave train extending eastward from the North Atlantic to West Pacific and the western North Pacific sea surface temperature warming, which together induce northerly wind anomalies over South China by enhancing the land–ocean pressure gradient. Such climate background state changes associated with the warm AMO prohibit the positive AO induced water vapor transport to South China, thereby weakening the AO–SCWP relationship.
Severe Convectively Induced Turbulence Hitting a Passenger Aircraft and Its Forecast by the ECMWF IFS Model
Authors: Gisinger S. , Bramberger M. , Dörnbrack A. , Bechtold P.
Published: December 2024

Atmospheric turbulence poses a major risk to aviation. Besides airframe damage, it can cause injuries of passengers and crew when encountered unexpectedly. The Singapore Airlines flight SQ321 was on its way from London to Singapore when severe turbulence was encountered over Myanmar on 21 May 2024. In this study, it is analyzed how well the turbulence was predicted by the turbulent eddy dissipation rate (EDR) forecast index of the ECMWF integrated forecasting system (IFS). It was found that ECMWF IFS was able to predict the convection and associated turbulence 24 hr in advance. The state‐of‐the‐art probabilistic EDR forecasts based on IFS ensemble members predicted probabilities for EDR between 10% and 40% over Myanmar with higher values for shorter lead time (8‐hr forecast). Individual members predicted EDR . Knowledge about the characteristics of convection in the IFS forecasts is required to make proper use of the probabilities determined from the ensemble for such cases.
Splicing junction-based classifier for the detection of abnormal constitutive activation of the KEAP1-NRF2 system
Authors: Mateos Raúl N. , Winardi Wira , Chiba Kenichi , Okada Ai , Suzuki Ayako , Mitsuishi Yoichiro , Shiraishi Yuichi
Published: December 2024

The KEAP1-NRF2 system plays a crucial role in responding to oxidative and electrophilic stress. Its dysregulation can cause the overexpression of downstream genes, a known cancer hallmark. Understanding and detecting abnormal KEAP1-NRF2 activity is essential for understanding disease mechanisms and identifying therapeutic targets. This study presents an approach that analyzes splicing patterns by a naive Bayes-based classifier to identify constitutive activation of the KEAP1-NRF2 system, focusing on the higher presence of abnormal splicing junctions as a subproduct of overexpression of downstream genes. Our splicing-based classifier demonstrated robust performance, reliably identifying activation of the KEAP1-NRF2 pathway across extensive datasets, including The Cancer Genome Atlas and the Sequence Read Archive. This shows the classifier’s potential to analyze hundreds of thousands of transcriptomes, highlighting its utility in broad-scale genomic studies and provides a new perspective on utilizing splicing aberrations caused by overexpression as diagnostic markers, offering potential improvements in diagnosis and treatment strategies.
Automatic extraction of fine structural information in angle-resolved photoemission spectroscopy by multi-stage clustering algorithm
Authors: Bian Lingzhu , Liu Chen , Zhang Zhen , Huang Yingke , Pan Xinyu , Zhang Yi , Wang Jiaou , Dudin Pavel , Avila Jose , Chen Zhesheng , Dong Yuhui
Published: December 2024

Unsupervised clustering method has shown strong capabilities in automatically categorizing the ARPES (ARPES: angle-resolved photoemission spectroscopy) spatial mapping dataset. However, there is still room for improvement in distinguishing subtle differences caused by different layers and substrates. Here, we propose a method called Multi-Stage Clustering Algorithm (MSCA). Using the K-means clustering results/metrics for real space in different energy-momentum windows as the input of the second round K-means clustering for momentum space, the energy-momentum windows that exhibit subtle inhomogeneity in real space will be highlighted. It recognizes different types of electronic structures both in real space and momentum space in spatially resolved ARPES dataset. This method can be used to capture the areas of interest, and is especially suitable for samples with complex band dispersions, and can be a practical tool to any high dimensional scientific data analysis.
What patients and caregivers want to know when consenting to the use of digital behavioral markers
Authors: Sonig Anika , Deeney Christine , Hurley Meghan E. , Storch Eric A. , Herrington John , Lázaro-Muñoz Gabriel , Zampella Casey J. , Tunc Birkan , Parish-Morris Julia , Blumenthal-Barby Jenny , Kostick-Quenet Kristin
Published: December 2024

Artificial intelligence (AI)-based computational tools for deriving digital behavioral markers are increasingly able to automatically detect clinically relevant patterns in mood and behavior through algorithmic analysis of continuously and passively collected data. The integration of these technologies into clinical care is imminent, most notably in clinical psychology and psychiatry but also other disciplines (e.g., cardiology, neurology, neurosurgery, pain management). Meanwhile, ethical guidelines for implementation are lacking, as are insights into what patients and caregivers want and need to know about these technologies to ensure acceptability and informed consent. In this work, we present qualitative findings from interviews with 40 adolescent patients and their caregivers examining ethical and practical considerations for translating these technologies into clinical care. We observed seven key domains (in order of salience) in stakeholders’ informational needs: (1) clinical utility and value; (2) evidence, explainability, evaluation and contestation; (3) accuracy and trustworthiness; (4) data security, privacy, and misuse; (5) patient consent, control, and autonomy; (6) physician-patient relationship; and (7) patient safety, well-being, and dignity. Drawing from these themes, we provide a checklist of questions, as well as suggestions and key challenges, to help researchers and practitioners respond to what stakeholders want to know when integrating these technologies into clinical care and research. Our findings inform participatory approaches to co-designing treatment roadmaps for using these AI-based tools for enhanced patient engagement, acceptability and informed consent.
Degradable poly(β-amino ester) microparticles for cleansing products and food fortification
Authors: Zhang Linzixuan , Xiao Ruiqing , Jin Tianyi , Pan Xinyan , Fransen Katharina A. , Alsaiari Shahad K. , Lau Alicia , He Ruizhe , Han Jooli , Pedretti Benjamin J. , Yeo Jing Ying , Yang Xin , Olsen Bradley D. , Alexander-Katz Alfredo , Smith Zachary P. , Langer Robert , Jaklenec Ana
Published: December 2024

Microplastic pollution is a pressing global crisis caused by the extensive use of nondegradable microplastic materials in daily activities. One effective approach to mitigate this issue is to replace nondegradable plastics with degradable materials that have properties amendable for targeted applications. Here we present the development of a degradable microparticle (MP) platform based on a poly(β-amino ester) (PAE) that degrades into sugar and amino acid derivatives. This PAE MP platform showed functional replacement of nondegradable microplastics used in cleansing products and food fortification. In cleansing products, PAE MPs effectively enhanced the cleansing efficiency of a representative rinse-off product and showed effective removal of potentially toxic elements, as an alternative of traditional nondegradable microbeads. In food fortification, PAE MPs provided robust protection for multiple essential vitamins and minerals against extensive cooking and storage conditions with rapid nutrient release in a simulated human digestion system. Collectively, these PAE MPs present a potential platform to replace microplastic usage on a global scale in many applications.
Sensitization experiments of ultrasmall gold nanoclusters: determination of triplet quantum yields and molar absorption coefficients
Authors: Sakai Hayato , Hiramatsu Sunao , Akiyama Aoi , Negishi Yuichi , Hasobe Taku
Published: December 2024

Two sensitization experiments of ultrasmall gold nanoclusters such as [Au25(PET)18]− demonstrated the excited triplet behaviour for determining quantum yields and molar absorption coefficients.
Cyaphide group transfer from covalent metal complexes: contrasting pathways to transmetallation
Authors: Yang Eric S. , Goicoechea Jose M.
Published: December 2024

A covalently bond gold(i) cyaphido complex is used as a cyaphide transfer reagent to low oxidation state main-group and transition-metal centres.
An ab initio study of the rovibronic spectra of CH
Authors: Hou Zhenlu , Liu Linhua
Published: December 2024

CH is one of the most spectroscopically studied diatomic molecules.
Comparative study of electron transport through aromatic molecules on gold nanoparticles: insights from soft X-ray spectroscopy of condensed nanoparticle films versus flat monolayer films
Authors: Tendo Shogo , Niozu Akinobu , Yoshioka Kakuto , Tabuse Masataka , Adachi Jun-ichi , Tanaka Hirokazu , Wada Shin-ichi
Published: December 2024

Nuclear and electron dynamics induced by resonant core excitations were elucidated for monolayers of aromatic molecules on gold nanoparticles as well as on flat substrates.
Recent progress in doping engineering of perovskite oxides for photocatalytic green hydrogen production via water splitting
Authors: Wei Jieding , Shi Manman , Wang Shuo , Huang Yucheng
Published: December 2024

Given the immense potential for addressing energy and environmental issues, the utilization of doped perovskite oxides for solar-driven hydrogen production through water splitting (WS) has garnered widespread attention in the scientific community.
Collaborative multi-interface engineering and dynamic iron exchange boost robust bifunctional water electrolysis at 2 A cm−2
Authors: Li Dongyang , Zhang Yong , Xie Weiqiang , Zhou Qian , Yu Fang , Qi Ying , Lian Ziyi , Zhang Long , Wang Hui , Tang Dongsheng , Zhou Haiqing
Published: December 2024

An efficient and stable catalyst is developed by in-situ growing Fe particles onto a MoNi4/MoO2 nanorod surface, which presents superb bifunctional activities for water electrolysis due to collaborative multi-interfaces and dynamic iron exchange.
Assessing the environmental impact of freshwater use in LCA: established practices and current methods
Authors: Mir Basit A. , Nurdiawati Anissa , Al-Ghamdi Sami G.
Published: December 2024

Extensive water use leads to scarcity, adversely affecting human health, ecosystems, and resources. Life cycle assessment (LCA) evaluates these impacts via damage pathways, using characterization models to quantify effects.
Constructing a chemoenzymatic strategy for enhancing the efficiency of selectively transforming 5-hydroxymethylfurfural into furan carboxylic acids
Authors: Zhang Zhiyu , Zhang Xiaowang , Qi Siyu , Na Qi , Zhao Kaichen , Yu Ziyi , Tan Zhuotao , Ying Hanjie , Zhu Chenjie
Published: December 2024

An efficient NFCM-mediated chemoenzymatic system was constructed for selectively transforming HMF into furan carboxylic acids.
Nanocrystalline and mesoporous (Ba,Sr)(Sn,Mn)O3 perovskite solid solution: a potential n-type semiconductor for room temperature ethanol sensing applications
Authors: Waghchoure Nehal Ashok , Jayadevan Kampurath Poduvattil
Published: December 2024

EtOH oxidation at ∼55% humidity over Ba0.98Sr0.02Sn0.95Mn0.05O3 is enhanced. The electrons from Ba0.98Sr0.02Sn0.95Mn0.05O3 interact with the adsorbed oxygen molecules, forming adsorbed oxygen species which interact with ethanol to give CO2 and H2O.
A multifunctional Co-doped BiFeO3 nanocomposite: a promising candidate for photocatalytic degradation, antibacterial activity, and antioxidant applications
Authors: Jalandhara Devender , Kumar Sanjeev , Dalal Jasvir , Supreet  , Singh Gautam , Kumar Sandeep , Badru Rahul , Singh Yadvinder , Sharma Satya Vir , Kaushal Sandeep
Published: December 2024

This study investigates the synthesis and multifunctional applications of Co@BFO nanocomposite, in photocatalytic degradation of malachite green dye, antibacterial activity and antioxidant capacity.
Eu-MOF and its composites as turn-off fluorescence sensors for p-nitrophenol with applications in monitoring catalytic reduction reactions
Authors: Xing Bing-Bing , Wang Yue-Shu , Zhang Tao , Liu Jing-Yi , Jiao Huan , Xu Ling
Published: December 2024

Eu-MOF and its composite of Pd@Eu-MOF@SA exhibit rapid fluorescence quenching responses to p-nitrophenol. Pd@Eu-MOF@SA can act as a sensitive fluorescence indicator for the catalytic reduction reaction of NaBH4 and p-nitrophenol with obvious emission color change.
Accelerated design of solid bio-based foams for plastics substitutes
Authors: Miranda-Valdez Isaac Y. , Mäkinen Tero , Coffeng Sebastian , Päivänsalo Axel , Jannuzzi Luisa , Viitanen Leevi , Koivisto Juha , Alava Mikko J.
Published: December 2024

Our framework enables the use of fast measurements in an auxiliary space (the liquid state) to predict the target material properties (mechanical strength of dry material), instead of slow sample manufacture (foam forming and mechanical tests).
Enhanced photocatalytic performance of polyaniline nanoparticles for efficient dye degradation under simulated sunlight
Authors: Tran Chinh Van , Lai Duy Van , Nguyen Thu Minh , Quynh Thi Le Xuan , Nguyen Hanh Hong , Quan Nguyet Thi Minh , Nguyen Tung Thanh , La Duong Duc
Published: December 2024

PANI nanoparticles was synthesized via a hydrothermal method using P123 surfactants, followed by calcination. The oPANI nanoparticles showed excellent photodegradation of RhB and MB under simulated sunlight irradiation.
Radical-mediated photocatalytic dye degradation and antimicrobial properties of La2NiMnO6 nanoparticles
Authors: Manori Samta , Savita  , Gangal Avinash , Kaushik Aakanksha Jain , Bachhar Vishwajeet , Joshi Vibha , Duseja Manisha , Chandra Ramesh , Shukla Ravi Kumar
Published: December 2024

This work focused on engineering double perovskite (DP) La2NiMnO6 (LNMO) nanoparticles (NPs) through the co-precipitation method and further calcined at 1000 °C.
A phenothiazine-based “turn-on” fluorescent probe for the detection of hydrazine in water, soil, plant and food samples
Authors: Zhang Wenqian , Shang Zhuye , Zhang Zhiqiang , Meng Qingtao
Published: December 2024

As a common chemical raw material, even a small amount of hydrazine (N2H4) residue can cause irreversible damage to the environment.
Regulated dual defects of ligand defects and lattice defects in UIO-66 for ultra-trace simultaneous detection and removal of heavy metal ions
Authors: An Dahui , Jin Shan , Zheng Junhua , Liao Mubai , Chen Long
Published: December 2024

Solvothermally synthesized dual-defect D-D-UIO-66 exhibits enhanced electrochemical and adsorptive properties due to synergistic lattice and ligand defects, effectively detecting and adsorbing HMIs, with performance validated in real water matrices.
In situ analysis of heavy metals and halogenated compounds in reclaimed water using novel electrospray ionization combined with plasma ionization linear ion trap mass spectrometry
Authors: Shuaibu Nazifi Sani , Zhao Gaosheng , Chu Fengjian , Ismail Balarabe Bilyaminu , Shateri Aso Ali Abdalmohammed , Muhammad Anas Abdullahi , Ibrahim Ammar Muhammad , Indabawa Musbahu Garba , Wang Xiaozhi
Published: December 2024

Water scarcity is a global concern that needs addressing through alternative sources.
Development of tough and stiff elastomers by leveraging hydrophilic–hydrophobic supramolecular segment interaction
Authors: Yang Jihua , Zhang Wei , Pan Rui , Zhuo Yizhi , Cheng Hua , Zhang Awang , Liu Mengru , Wang Zeqing , Gong Yi , Hu Rui , Ding Jianjun , Chen Lin , Zhang Xian , Tian Xingyou
Published: December 2024

This manuscript reports an approach to prepare tough and stiff elastomers by leveraging hydrophilic–hydrophobic supramolecular segment interaction.
Sb4O5Cl2 embedded in carbon polyhedra for fast charge kinetics towards high-capacity Li-ion capacitors
Authors: Wang Meng , Liu Kewei , Xu Yanan , Zhang Xudong , Peng Qifan , Guo Yang , Zhang Xiong , Sun Xianzhong , Pang Weiwei , Wang Kai , Yu Le , Ma Yanwei
Published: December 2024

Sb4O5Cl2 embedded in carbon polyhedra is designed for Li-ion capacitors (LIC) using a confine strategy. Owing to the enhanced charge transport and reduced volume expansion, the assembled LIC device exhibits high energy/power density and lifetime.
Synthesis by size focusing of lithium tantalate nanoparticles with a tunable second harmonic optical activity
Authors: Ali Rana Faryad , Gates Byron D.
Published: December 2024

Nonlinear optics at the nanoscale has emerged as a sought-after platform for sensing and imaging applications.
Ultralow lattice thermal conductivity and superior thermoelectric performance in AgAlS2 and AgAlSe2
Authors: Faizan Muhammad , Li Shaojie , Liu Zhongwei , Li Zewei , Xie Jiahao , Zhou Kun , Fu Yuhao , Zhang Lijun
Published: December 2024

Low-cost and earth-abundant AgAlX2 (X = S, Se) chalcopyrites with ultralow lattice thermal conductivity and high figure of merit are promising anisotropic materials for advanced thermoelectric applications.
A polyurea interface structure with dual dynamic bonds endowing composites with synchronous self-healing and thermal conductivity properties
Authors: Geng Shuang , Wu Bin , Wu Yan , Yu Ping , Xia Ru , Qian Jiasheng
Published: December 2024

An integrated composite with dual dynamic bonds obtained by in situ polymerization of isophorone diisocyanate modified GO into polyurea achieves the coupling of thermal conductivity and self-healing properties.
A new series‐parallel active compensator for DC microgrids based on three‐leg voltage source converter
Authors: Mortezapour Zahra , Mortezapour Fatemeh , Hojabri Hossein
Published: December 2024

DC microgrids are gaining increasing attention due to their advantages such as high reliability, high efficiency, ease of renewable energy sources integration, and the absence of frequency and reactive power regulation problems. Connection of AC energy sources and loads to the DC microgrids through AC/DC converters can distort the DC microgrids voltage and current. In addition, the fault occurrence in the DC or upstairs AC microgrids can cause voltage sag and swell. Compensating and reducing these voltage and current distortions requires efficient and cost‐effective solutions. This article proposes two new topologies of DC series‐parallel active compensators for voltage and current compensation in DC microgrids. In the first topology, the back‐to‐back connection of an isolated bidirectional DC/DC converter with a full‐bridge converter is used to compensate voltage and current. In the second one, to eliminate the transformer, simplify the converter structure and reduce its cost, an active compensator based on a three‐leg voltage source converter is proposed which can compensate both the microgrid voltage harmonics, sag and swell, and the load current harmonics. The proposed topologies performances are confirmed through their simulation in the MATLAB/SIMULINK environment. A simple experimental setup is also provided to validate the simulation results.
Multi-disciplinary optimization design method and application of BWB fuselage structure based on PRSEUS configuration
Authors: TIAN Rui , WANG Haiyan , NIE Xiaohua , LUO Lilong , TIAN Yu , PENG Tao
Published: December 2024

Aiming at the problems such as low structural bearing efficiency, structural weight gain, heavy load and cabin noise caused by high rear backbraced engine in BWB layout, based on novel materials and pultruded rod stitched efficient unitized structure(PRSEUS), a multi-disciplinary optimization design method for unconventional circular body structures with aerodynamic, noise, vibration and technological constraints was studied to improve the bearing efficiency and lightweight of structures. Based on the adaptive agent model construction technology, an agent model for the performance analysis of the aerodynamic and noise subsystem of the airframe structure is established to predict the aerodynamic load and noise performance of the airframe structure, and the basic requirements of the aerodynamic and noise performance are transformed into constraints such as geometric size and mechanical response, so that the multi-disciplinary problems are concentrated in a set of finite element analysis model with efficient mathematical programming method. The time-consuming problem of multi-disciplinary high-precision model analysis is solved, and the multi-disciplinary optimization design of the wing-body integrated body structure is realized. Through the finite element analysis of the body structure, the bearing efficiency of the structure has been greatly improved, and the weight loss rate of the central body structure has reached 8.7% under the premise of meeting the constraints of various disciplines.
A rolling bearing fault diagnosis method based on GADF-CWT-GCNN
Authors: ZHANG Xiaoli , LUO Xin , LI Min , LIANG Wang , WANG Fangzhen
Published: December 2024

Because of poor model generalization ability and low diagnostic accuracy caused by rolling bearing fault diagnosis in a small sample environment, a novel method based on the Gram angle division field (GADF), the continuous wavelet transform (CWT) and the parallel two-dimensional group normalizatio convolutional neural network (P2D-GCNN) for the fault diagnosis of rolling bearings is proposed. Firstly, collected data are preprocessed and one-dimensional vibration signals are converted into two-dimensional images by using the Gram angle division field and the continuous wavelet transform as the input of the model. Then the data enhancement technique is used to expand the sample sub-graph to meet the input requirements of the network. The sample sub-graph is imported into the convolutional neural network with the group normalization algorithm for diagnostic detection. The results show that the generalization ability of the data processing method and the model built in this paper in the small-sample environment is much higher than that of other network models such as the small vector machine and the 1D-CNN. In order to further verify the recognition ability of the model in the small sample environment, the sample sizes of 70%, 40% and 20% of the dataset are used to do experiments many times. Their corresponding training accuracy and test accuracy were 99.38%, 99.02%, 99.47%, 98.29%, 99.05% and 97.08% respectively, indicating that the model is highly accurate for the fault diagnosis of rolling bearings in the small sample environment.
Burrowing and soil dependence in the invasive crayfish Faxonius immunis under simulated drought conditions
Authors: Herrmann Alexander , Martens Andreas
Published: December 2024

The invasive calico crayfish Faxonius immunis digs burrows into banks and pond sediments. Burrowing behaviour is a crucial trait for the ecological success of crayfish because the burrow provides shelter and keeps humid conditions during dry periods; therefore it can be of aid for management purposes to understand under which conditions the species is not able to dig its burrows. In standardized lab experiments, adult F. immunis individuals were placed in a closed container containing water saturated sediment and left there for a simulated two-week drought period in three separate experiments. Survival rate, volume, shape, number of burrows and the ability to seal the entrance were noted and compared between different sediments, status of the major chelae and for the different sexes. F. immunis was able to survive the two-week experimental drought on all sediments. The survival rate was lowest for male crayfish on sand sediment. Results show that silt sediment allowed burrowing behaviour whereas the species was not able to dig a burrow in sand and gravel sediments. Female F. immunis had a higher tendency towards building cavern shaped burrows and had larger burrow volumes and seal diameters. A majority of dug burrows had a sealed entrance. As there were no burrows in sand or gravel, the management approach that uses habitat modification by gravelling sediments of invaded waters has a high potential to support the efforts in managing this invasive species in ponds.
Coastal Students’ Perception of Synchronous and Asynchronous Online Learning: A Rasch Model Analysis
Authors: Subroto Gatot
Published: December 2024

Online learning can be carried out in two ways, synchronously and asynchronously. The purpose of this study was to figure out coastal students’ perception of synchronous and asynchronous online learning. The method used was descriptive quantitative. The setting of this research was in one of the Universities in Tanjungpinang, Riau Archipelago. The respondents of this research were 36 third-semester English department students. The instrument of this research was a Likert scaled questionnaire. A Rasch model software called WINSTEPS version 3.73 was used to analyze the data. The results revealed that coastal students are more pleased and focused during online learning by the asynchronous method rather than synchronous. Interestingly, both synchronous and asynchronous don’t give significant effect on students’ understanding during online learning.
Research on the Current State of Chinese Language Teaching in the Riau Islands Province of Indonesia
Authors: Lestari Dian , Pujiastuti Indah
Published: December 2024

Teaching mandarin is a part of the teaching foreign languages in the world. The teaching targets are the groups of teaching mandarin as the second language. However, regarding the mandarin teaching materials in overseas areas aren't optimistic. This study uses limited surveys of mandarin textbooks in the school, university in Riau Island province of Indonesia, and local mandarin textbooks published by Indonesian bookstores. In recent years, with the close cooperation between Indonesia and China in various aspects. In Indonesia, especially in the Riau Islands Province, there has been a wave of learning Chinese, and Chinese teaching has shown a good development trend. In addition, the rise of Chinese textbooks and teaching in Indonesia has developed rapidly and vigorously in terms of content, quantity, type and other aspects. This study conducted a comprehensive investigation on the publication and use of Chinese textbooks in the Riau Islands Province of Indonesia through field visits, questionnaires and interviews, analyzed their characteristics and usage, and then discussed the achievements and shortcomings of existing textbooks, and put forward some suggestions for the construction of Chinese textbooks in Indonesia in the future. The first part is the introduction, including the origin of the topic, a review of related research, the significance and methods of this study. The second part is a review of the history and development of Chinese teaching in Indonesia. The third part describes the publishing status and usage of Chinese textbooks in Riau Islands, Indonesia. The fourth part is the characteristics and conclusion of Chinese textbooks of different levels and different applicable objects in Riau Islands, Indonesia, combining the objective evaluation of Chinese textbooks with the feedback of users to conduct a comprehensive evaluation of the textbooks.
Investigating teacher process skills through the development of inquiry-based learning using natural materials for Environmental Awareness
Authors: Wati Fatma , Nuzullah Putri Azza
Published: December 2024

The purpose of this study was to analyse science teachers’ level on science process skills. There were 11 teachers who participated in this study. The data were collected by using test for science process skills. This test was conducted to 11 science teachers which consisted of six skills of science process skills. Those skills are observation, classification, interpretation, designing hypotheses, designing experiment, and communication. Results of the study showed that the average process skills scored 70 on good criteria. Meanwhile, to design inquiry-based learning produced three topics such as substances and their changes, inheritance of trait and object density. The conclusion of this research shows that teachers have been able to design inquiry-based learning and have science process skills at good criteria. This is expected to foster good environmental awareness so that science learning can help students to care more about the surrounding environment.
Students' Learning Motivation and Metacognitive Awareness in Biology Learning: A Study at Senior High School in Coastal Area
Authors: Fa’u Sabrina Thresia Gustianti , Sarkity Dios , Oprasmani Elfa
Published: December 2024

This study aims to analyze students' learning motivation and metacognitive awareness in biology subjects. This type of research is descriptive with a quantitative approach. This research was conducted in April of the 2023/2024 Academic Year, which was conducted at SMA Negeri 4 Tanjungpinang. The population of this study was 685 students of SMA Negeri 4 Tanjungpinang. The sampling technique used was stratified random sampling, and the sample used was 253 students. The instruments used were learning motivation questionnaires and the Metacognitive Awareness Inventory (MAI), which were valid and reliable. The data analysis technique was a quantitative descriptive analysis technique. Based on the results of the study, it can be concluded that the learning motivation of students at SMA Negeri 4 Tanjungpinang in biology subjects is in the moderate category. The metacognitive awareness of students at SMA Negeri 4 Tanjungpinang in biology subjects is in the high category. This can be interpreted as students identifying their strengths and weaknesses in learning and developing good learning strategies.
Global Trends and Opportunities on Folklore and Maritime Environmental Education Research: A Bibliometric Analysis of Scopus Database 2015-2024
Authors: Youpika Fitra , Syaputra Juni , Putra Dhanu Ario , Yandryati Jenny
Published: December 2024

This paper is generated from research examining folklore and maritime environmental education in the last 10 years, which aligns with global efforts to integrate local wisdom into ecological conservation strategies. This article aims to use a bibliometric analysis in researching trends and opportunities in this topic, using data from the Scopus database from 2015 to 2024. This research uses a bibliometric analysis method and mapping analysis with VOSviewer. The results showed that 50 articles were found, including journal publications and proceedings. Folklore research related to maritime environmental education has largely experienced unstable changes over the past 10 years. The development of folklore research related to maritime environmental education is still experiencing ups and downs. The number of publications related to folklore and maritime environmental education increased in 2017-2018. It remained stable in 2018-2019, experienced a significant rise in 2019-2020, decreased in 2020-2021, declined further in 2021-2022, saw a substantial increase in 2022-2023, and dropped again in 2023-2024. These findings highlight opportunities for future research, particularly in expanding cross-cultural studies and strengthening local community engagement in maritime environmental education. In conclusion, this article offers important insights into academic developments in the field of folklore and environmental education, as well as the potential for increased contributions from under-researched areas. It also suggests the need for greater collaboration and interdisciplinary studies to address these gaps and maximize the role of folklore in maritime environmental education.
Non-Material Social Facts in Madurese Songs as Supporting Maritime and Agrarian Knowledge for Students in Madura
Authors: Ilman Faqih Fiyan , Rahman Bohri
Published: December 2024

Apart from being entertainment, Madurese songs also function as a medium to express feelings and reflect Madurese social forms and cultural values. This research aims to describe non-material social facts in Madurese songs so that they can be used as support for students' maritime and agrarian knowledge. The method in this research is qualitative with a descriptive approach. The object of this research is that Madurese songs contain maritime and agrarian aspects. The data in this research are the lyrics of Madurese songs which contain non-material social facts. The results of this research are the existence of non-material social facts (morality, collective conscience, collective representation, and social currents) in Madurese songs. Non-material social facts related to maritime and agrarian affairs are the life of orèng majăngan, akarang activities, activities at the palabbhuwăn Kamal, the origin of tombhăk nangghălă, the use of ronjhăngan, ghu-toghu sabă activities, Mosèm Anyè activities, the importance of water, and farmers' activities in the morning. These non-material social facts can be used as teaching material so that students gain supporting knowledge about maritime and agrarian affairs in Madura.
Asceticism in the Tradition of Pesantren: An Eco-Critical Discourse
Authors: Lutfitasari Wevi , Mujtahidin Mujtahidin
Published: December 2024

Asceticism is vital the religiosity of santri and enhancing their devotion to Creator through Islamic practices in pesantren life. This research is urgent for two reasons. First, it examines the distinctive linguistic discourse of pesantren as a manifestation of teachings on self-control against materialism. Second, this research underscores the connection between pesantren ideals and social practices, highlighting how the ecological traditions of pesantren shape the ascetic character of santri. This research is qualitative, employing eco-critical discourse. This study aims to describe of linguistic discourse in the pesantren environment that contains ascetic values and ecological traditions of pesantren as teachings infused with asceticism. Two findings emerge. First, the linguistic discourse that includes elements of asceticism is manifested through Arabic calligraphy and advice from kyai, scholars, emphasizing teachings on consistency in devotion to Allah, self-reflection for moral and intellectual improvement, and concept of avoiding worldly luxury. Second, the ecological traditions of pesantren infused with asceticism are expresse through the relationship of the santri to Allah and the surrounding environment. In conclusion, the concept of asceticism within pesantren traditions is expressed through linguistic discourse, representing a distinctive characteristic of pesantren life aimed at deepening the connection with Creator through Islamic spirituality and simplicity.
Learning the Malay maritime traditions of the Riau Islands uses copying assignment techniques in special teaching materials
Authors: Sabarullah Iman , Cahyani Desy , Kamsuri Kamsuri , Rifai Irfan , Abdulhajar Encik , Kurmalasari Tety
Published: December 2024

The research aims to explore: -learning procedures for Malay maritime traditions in the Riau Islands using copying assignment techniques in special teaching materials; -learning results using the same techniques; -whether or not the learning outcomes using this technique are the same per sample group. The research used a descriptive method, data on the activity of class Research results: -This learning procedure was carried out in harmony with the learning plan containing 5 initial activities, 20 core and 4 final activities; -Learning outcomes are relatively high. The one sample t value at the estimated mean of 21.75 is 1.57 at sig. 0.137 > 0.05 so Ho is accepted. This value is equivalent to 87.00 percent; -There are no differences in learning outcomes per sample group. The value of F = 0.947 for the unidirectional Anova test is at sig. 0.394. This figure is > 0.05 so Ho is accepted.
Designing Project-Based Learning Syllabus for Speaking for Informal Interaction Course Integrating Local Coastal Culture
Authors: Hanifah Hanifah , Candra Muhammad , Nainggolan Elsa Ernawati , Firmansyah Bianca Naluri , Sartika Delita , Hasyim Taufiqurrahman
Published: December 2024

Syllabus is a dynamic document that outlines the learning outcome, material, method, and assessment conforming to the students’ needs. Due to the absence of the reforming syllabus of the Speaking for Informal Interaction (SII) course at English study program Universitas Maritim Raja Ali Haji, this study purposes to create a project-based learning syllabus for the course. To achieve the objectives, the defining and designing stages of Thiagarajan et al.'s four-D model were employed. Two research instruments were used to gather the data: interview guideline and questionnaires. Three assistant professors and 35 students took part in this study. In addition, curriculum analysis was done to create the syllabus's structure. Considering the data gathered, the syllabus was created by incorporating local coastal culture into its contents and activities or projects. The indicators chosen based on the curriculum analysis show that the students meet the expected graduate profile if they can communicate effectively connected to actual situations. The SII syllabus prototype will be used further in the development and dissemination phase for real-world implementation.
Research Trends Environmental Awareness in Science Learning to Support Sustainable Development Goals (SDGs) Through Bibliometric Analysis
Authors: Misbah Misbah , Hakam Ahmad Bakharzi , Qamariah Qamariah , Umar Fadilah , Muhammad Nurlaela , Harto Muhdi , Warman Warman , Ermawati Imas Ratna
Published: December 2024

This study aims to analyze the research trend of Environmental Awareness in Science Learning (EA_SL) to Support SDGs through bibliometric analysis. Based on the Scopus database with the keywords “environmental awareness” AND “science learning”, 668 documents were obtained. Then, limitations were made using specific criteria so that 44 documents/articles were analyzed. The United States ranks first as the most productive country on this topic. Publications on this topic are increasing every year. Seven clusters were obtained for this keyword. Some of the findings can be used as references for subsequent research in order to achieve the SDGs.
Analysis of Chemistry Education Students' Level of Understanding of the Basic Concepts of Science Education in the Perspective of Sustainable Maritime Education
Authors: Fitriani Rita , Rasyid Muhamad Al , Sabekti Ardi Widhia , Putri Steva Dara
Published: December 2024

The Basics of Science Education course plays an important role in equipping prospective teacher students with basic concepts of Natural Science which build their understanding of nature and scientific principles. In an effort to support the sustainability of the coastal environment, the integration of sustainable maritime education in learning is an innovative approach. This research aims to analyze the level of understanding of undergraduate students in chemistry education regarding the basic concepts of science education from the perspective of sustainable maritime education. The type of research used was quantitative descriptive with data obtained through the Mid-Semester Examination in the form of 30 multiple choice questions, which were taken by 28 students. Based on the results of data analysis, the average score obtained by students was 19.36 out of a maximum score of 30, with a median score of 19, and the range of student scores was between 7 and 26 points. These findings indicate variations in the level of student understanding of the basic concepts of science education in the context of relevant and sustainable maritime education. The results of the research show that student teacher candidates have varying understandings of the topics taught. This analysis provides insight that efforts are needed to prepare prospective teachers who not only master the basic concepts of science material, but are also able to apply them in the context of sustainable maritime education.