bluuebunny/crossref_metadata_2025_split huggingface dataset:
Collaborative process planning method for complex curved surfaces during automated fiber placement
Authors: Pan Helin , Fu Jianhui , Qu Weiwei , Wang Huabi , Li Debao 
Published: February 2025

AbstractThe automated fiber placement (AFP) technology has drawn considerable interest to replace the traditional hand laid‐up, providing greater productivity, precision, repeatability, reduced waste, and the capability to manufacture complex curved structures. To further advance the application level of AFP, it is essential to exert extraordinary efforts in process planning. In this paper, a collaborative process planning method incorporating process conditions and manufacturing constraints is first developed and described in detail. In it, the mechanism of the key process parameters including pressure, head speed as well as material temperature are analyzed and predicted, respectively. In parallel, the most key manufacturing constraint, critical steering radius, is defined and elaborated. Thereafter, the layup process parameters for a winglet tool is obtained based on the collaborative process planning method. Finally, the method is investigated by the placement experiments of the winglet. Results demonstrate that the method can realize highly efficient and improve the layup quality of the winglet. Such that, the collaborative process planning method can provide an excellent foundation for enhancing the manufacturing precision and efficiency as well as placement quality for complex curvature structures.Highlights
A collaborative process planning method is developed and described in detail.
FEM simulations and trials of the winglet are utilized to confirm the method.
Characterization of mechanical, thermal, and morphological properties for long hemp fiber‐reinforced green epoxy biocomposites
Authors: Siddiqui Vasi Uddin , Lahmdi Fahd Salah Hasan , Sapuan S. M. , Azka Muhammad Adlan , Khan Abir , Yusuf J. , Hasan Mohammad Zaid , Habib Abdul , Firdaus A. H. M. 
Published: February 2025

AbstractGrowing environmental concerns have heightened the demand for eco‐friendly materials, prompting a shift from carbon fibers and conventional polymers to recyclable biopolymer composites. Natural fibers, such as hemp, are widely incorporated into green epoxy composites to enhance performance, with applications spanning industries including transportation, aerospace, construction, energy, and shipping. The thermal and mechanical properties of hemp fiber‐reinforced green epoxy composites are essential in determining their effectiveness and broader viability. However, challenges such as limited fracture resistance, fragility, low impact strength, and fatigue resistance currently restrict their durability, particularly in demanding applications like automotive engineering. This study investigates the mechanical, thermal, fire, and morphological properties of hemp fiber‐reinforced green epoxy composites through comprehensive mechanical, thermal, and flammability testing, as well as SEM analysis to examine fiber behavior and microstructure. The use of green epoxy is also an area that was not deeply explored by the researchers. Furthermore, hemp fibers are known for their tensile strength and environmental benefits, which result in sustainable material production. Results demonstrated significant improvements in flexural strength, with values increasing from 53.654 MPa in neat epoxy to a minimum of 139.834 MPa in reinforced samples. Impact strength also improved, ranging from 4.04 to 8.26 kJ/m2, along with enhanced flame resistance. In conclusion, hemp fiber‐reinforced green epoxy composites showed overall performance improvements, except in tensile strength, compared to neat green epoxy samples, underscoring their potential in sustainable material applications.Highlights
Hemp fiber improves green epoxy's flexural and impact strength.
Enhanced flame resistance in green epoxy composites with hemp fiber.
SEM analysis reveals improved fiber microstructure in composites.
The flexural strength of composites exceeds neat green epoxy by 160%.
On the use of magnetite nanoparticles as filler for 3D printing of polyether‐ether‐ketone‐based soft magnets
Authors: Paleari Lorenzo , Varvaro Gaspare , Nanni Francesca , Ferrara Miriam , Peddis Davide , Rinaldi Marianna , Meisnar Martina , Bragaglia Mario 
Published: February 2025

AbstractIn this work, polyether‐ether‐ketone (PEEK) – magnetite nanocomposites, having filler content of 50, 60, and 70 wt%, have been developed and 3D‐printed via Fused Filament Fabrication to manufacture high‐performance space‐compliant soft magnetic parts. The nanocomposites present high thermal stability and high transition temperatures typical of the high‐performance PEEK matrix. Mechanical properties show increased stiffness up to 12.6 GPa of elastic modulus, but reduced tensile strength and ductility due to the high content of ceramic nanofiller. The 3D‐printed magnets present soft magnetic features, matching the properties of bare magnetite particles but with a lower, although still high, saturation magnetization (up to 52 Am2/kg), which scales with the particle percentage in the non‐magnetic polymer matrix. This confirms the effectiveness of both the extrusion and 3D printing processes in upholding the structural integrity of the magnetic filler. The electrical insulating nature, which prevents eddy current losses, ease of manufacturing complex shapes, and recyclability make these materials promising for 3D‐printed magnetic components in space applications, supporting sustainable future space exploration.Highlights
Magnetite/high performance polymer 3D‐printable nanocomposites were developed.
Magnets with interesting soft magnetic properties were 3D‐printed.
The polyether‐ether‐ketone matrix grants suitability for space applications.
Physik der höchsten Töne: Piccolo und Rekord‐Pfiffe
Authors: Mathelitsch Leopold , Verovnik Ivo 
Published: February 2025

ZusammenfassungHöchste Töne im Bereich von c5 mit über 4 kHz Schwingungsfrequenz erreicht die Piccolo‐Flöte. Auch Orgeln, Pianos, Glockenspiele und Xylophone schaffen das c5. Den Höhenweltrekord hält allerdings die Klangerzeugung mit dem Mund. Sirus Madjderey gelang im März 2024 ein offiziell anerkannter Pfiff mit einer Frequenz von 19 264 Hz, also fast im Ultraschall. Beim Gesang erreichen manche Sängerinnen das c3 mit etwa 1 kHz. Dieses sogenannte Flageolettregister beruht aber entgegen früherer Annahmen wie normaler Gesang auf schwingenden Stimmlippen. Das konnten neuere Untersuchungen zeigen.
Do Nucleating Agents or Processing Methods Affect the Thermal Transport in RacoPP?
Authors: Klein Ina , Marroquin Lacayo María Ester , Blesch Thomas , Rosenfeldt Sabine , Länger Patrick , Kreger Klaus , Rettinger Stefan , Senker Jürgen , Schmidt Hans‐Werner , Retsch Markus 
Published: February 2025

ABSTRACTPolypropylene (PP) homopolymers and copolymers play a pivotal role in the plastics industry. With applications spanning automotive components, electronic housings, construction materials, and food packaging, understanding their thermal transport properties is essential. This study investigates the impact of a highly efficient 1,3,5‐benzenetrisamide (BTA) nucleator (N,N′,N″‐tris(3‐methylbutyl)benzene‐1,3,5‐tricarboxamide) on the thermal diffusivity of injection‐ and compression‐molded propylene‐ethylene random copolymer (racoPP). Results are compared with those for a less efficient BTA (N,N′,N″‐tris(n‐butyl) benzene‐1,3,5‐tricarboxamide) and a control sample without additives. We supplement our thermal characterizations with x‐ray diffraction (XRD) and small‐angle x‐ray scattering (SAXS) analyses and demonstrate that the processing method and the presence of BTAs can impact the crystallinity and orientation of the PP lamellae. However, the thermal diffusivity of racoPP exhibits remarkable resilience to these changes, ensuring the consistent performance that is often required in industrial applications.
Investigating the Potential Hearing Impairment and Ototoxicity in Children up to Six Years With Cystic Fibrosis After Aminoglycoside Exposure (PIANO‐CF Extension)
Authors: Schneider‐Futschik Elena K. , Munro Courtney B. , Quinlan Catherine , Ranganathan Sarath 
Published: February 2025

ABSTRACTBackgroundPeople with CF (pwCF) are often treated with prolonged courses of aminoglycosides (AGs), for which known adverse effects include ototoxicity as a subset of hearing impairment (HI).MethodsThe PIANO‐CF trial was a single‐center study conducted at The Royal Children's Hospital where 28 pediatric patients aged < 7 years underwent sequential hearing tests at increased range up to 12,500 Hz in relation to receiving intravenous (IV) AGs. More than 85% of the cohort (n = 24) participated in the follow‐up hearing testing up to 1 year.ResultsHI was defined by degree (dB) and frequency (Hz) on the audiogram. This was further reviewed to determine if the type of HI was consistent with ototoxicity as there are frequently other causes of HI in this age group. At baseline the prevalence of HI and ototoxicity were 11% and 7%, respectively. Over a period of 1 year, HI was identified in 12.5% and that of ototoxicity in 6%. No correlation was found between degree of IV AG exposure and HI or ototoxicity.DiscussionThe finding of HI in young children with CF, including in those with minimal IV AG exposure, has implications for CF services to proactively screen for HI. Undetected HI may compromise learning outcomes and given the age of children studied, this is not insignificant during the acquisition and development of language skills.ConclusionRoutine audiometric testing for pwCF up to 12,500 Hz or beyond may increase sensitivity in detection of ototoxicity and should be considered for use in screening, monitoring, and future research.
Diagnostic Utility of Bedside “Point of Care Lung Ultrasound” in Predicting the Need For NICU Admission in Late Preterm and Term Newborns Having Respiratory Distress Soon After Birth in the Transition Period: A Prospective Observational Study
Authors: Gautam Nirmal Kumar , H. A. Venkatesh , Pejaver Rajath , Nagesh Karthik 
Published: February 2025

ABSTRACTBackgroundPoint of care lung ultrasound (POC‐LUS) is a rapid and simple method to evaluate infants with respiratory distress after birth.ObjectivesThe primary objective was to determine whether the POC‐LUS score is a good predictor of NICU admission in late preterm and term infants born with respiratory distress when performed within the first 2 h of life. The secondary objective was to find a correlation between the LUS score and the clinical respiratory distress severity score.MethodsA prospective observational study was carried out in a tertiary care neonatal unit (Level III) over 1 year on 97 late preterm and term infants having respiratory distress at birth. POC‐LUS was performed in a transition nursery area within 2 h of birth, and LUS score was recorded as per a pre‐validated LUS scoring system. The decision for NICU admission was independently taken by the medical team based on clinical criteria and blinded to the LUS findings. A receiver operating characteristic (ROC) curve was generated to predict NICU admission based on the LUS score. LUS score was also analyzed for correlation with clinical respiratory distress severity scoring, that is, Silverman−Anderson score (SA score).ResultsThe mean gestational age of the infants in the study was 37.45 ± 1.88 weeks. Fourty‐three percent of infants needed NICU admission. LUS score > 5/18 performed within 2 h after birth was an excellent predictor of NICU admission in late preterm and term infants with respiratory distress after birth (area under ROC curve 0.903, sensitivity 64%, specificity 98%, positive likelihood ratio 35, and p < 0.001). LUS score also had a weak positive correlation with the SA score (Pearson's correlation, r = 0.325; p = 0.001).ConclusionA LUS score of > 5/18 is an excellent predictor of NICU admission in term and late‐preterm infants with respiratory distress after birth.
Clinical Manifestation of Arboviruses in Paediatrics
Authors: Pang Mu , Sun Xi‐zhe , He Ting , Yang Hao , Chen Jun 
Published: February 2025

ABSTRACTArboviral infections in paediatric populations present unique challenges due to distinct pathophysiological mechanisms influenced by developmental and immunological differences. Commonly implicated arboviruses include dengue virus (DENV), Zika virus (ZIKV), chikungunya virus (CHIKV), West Nile virus (WNV), and yellow fever virus (YFV). These viruses exhibit specific tropisms, targeting organs such as the central nervous system (CNS), liver, and vasculature. Immune responses in children, characterised by an underdeveloped adaptive system and enhanced innate immunity, can exacerbate inflammation and increase susceptibility to severe outcomes such as dengue hemorrhagic fever (DHF), congenital Zika syndrome (CZS), and neuroinvasive complications. Maternal antibodies, antibody‐dependent enhancement (ADE), and immature barriers, such as the blood‐brain barrier, further contribute to disease severity. This review highlights the virological and immunological nuances of arboviral pathophysiology in paediatric patients, emphasising the need for age‐specific diagnostic, therapeutic, and preventive strategies to mitigate the burden of these infections.
Reading Orientations: Reading Power Otherwise in Critical Literacy Research
Authors: Coleman James Joshua 
Published: February 2025

AbstractIn the 21st century, the term “critical” has attached itself to numerous aspects of literacy research. However, what critical means remains commonly anchored to Freire and a primary critical reading practice—suspicious critique. Expanding critical literacy research (CLR), this article advances reading orientations as a conceptual tool for drawing attention to the phenomenological aspects of our critical reading practices and for exploring alternative “methods” and “moods” for reading power in literacy studies. Through three “re‐turns” to previous publications within the field of critical literacy, I position myself as an exploratory case. The first re‐turn surveys four leading models of critical literacy, which I encountered in my graduate training, and highlights how critique and suspicion function in these models. The second re‐turn zooms into my own work, re‐reading three previous publications to illustrate how suspicious critique has influenced my research. Experimental, my third re‐turn presents previously unpublished data to engage an alternative reading method—reparative description—and illustrates how we might read power otherwise in CLR. Together, these re‐turns emphasize the possibilities of accounting for reading orientations in CLR and for exploring additional methods and moods of reading within the field.
Unraveling the Differential Impact Pathways of Landscape Structures and Ecosystem Services on “Essential Needs,” “Governance,” and “Objectives” for Sustainable Development Goals (SDGs)
Authors: Li Jiangyue , Chen Xi , Wang Weisheng , Liu Wenjiang , De Maeyer Philippe , Van de Voorde Tim , Ma Xuexi , Li Yaoming 
Published: February 2025

ABSTRACTCentral Asian countries ranked low in Sustainable Development Goal (SDG) scores among 166 countries globally in 2024, facing challenges in achieving the 2030 Agenda. Landscape structures (LSs) are considered crucial in advancing the SDGs by supporting the provision of ecosystem services (ESs). Although previous studies have primarily considered the first‐level interactions between LSs and ESs, as well as between ESs and SDGs, uncertainty remains regarding the hierarchical responses among LSs, ESs, and SDGs. To address this gap, this study integrates the traditional relationship between LSs and ESs into the latest SDG classification framework (“essential needs,” “governance,” and “objectives”), aiming to provide a new theoretical framework and methodology for advancing priority actions and achieving the SDGs in Central Asia. This study uses the Dangala and Bukhara regions in Central Asia as case studies. By constructing landscape index tools, ES assessment models, and regression analyses, we quantified the spatiotemporal distribution changes on the basis of 6 LS indices, 5 ESs, and 3 categories of SDGs. Using factor analysis and structural equation modeling, we revealed the differential impact pathways of LSs and ESs on SDGs. Our results indicate that the Dangala region, which is dominated by grasslands, should prioritize SDG 7, SDG14, and SDG15, whereas desert areas should focus on SDG 9, SDG 12, and SDG 13. Importantly, the interactions among LSs, ESs, and SDGs highlight the potential of systematic grassland and desert landscape planning and management to maximize the provision of ESs for sustainable economic, social, and environmental development in arid zones.
New Oil Price Crisis, and Health Costs: Impact on the OECD Economy: Insights From a Novel IV‐Quantile–Quantile Analysis
Authors: Musibau Hammed Oluwaseyi 
Published: February 2025

ABSTRACTThis study employs an innovative instrumental variable (IV) quantile regression approach to analyze the impact of oil price fluctuations and healthcare costs on economic growth across various income levels in OECD countries from 1970 to 2022. The analysis demonstrates that oil prices and healthcare expenditures significantly affect growth in lower‐income regions, with these effects diminishing at higher‐income levels. These findings underline the necessity for tailored policy interventions that promote sustainable growth by optimizing the benefits of oil prices and healthcare investments while mitigating associated risks, such as inflation. Additionally, enhancing healthcare access in less‐developed regions is crucial for fostering inclusive economic progress. The study emphasizes the vital roles of energy markets and healthcare systems in informing effective economic development strategies.
Flexible Temperature Sensor with 2D In2Se3 Ferroelectric‐Semiconductor Field Effect Transistor Exhibiting Record High Sensitivity
Authors: Lim Taebin , Lee Junmi , Jang Jin 
Published: February 2025

AbstractIn this study, a In2Se3 ferroelectric‐semiconductor field‐effect transistor is reported for highly sensitive temperature sensing. The high thermal sensitivity of 696%/°C can be achieved by integrating semiconducting behavior and ferroelectricity in In2Se3 thin film. By inducing a polarization up state in the ferroelectric‐semiconductor by applying gate bias, the carriers within the In2Se3 semiconductor are depleted, suppressing channel formation. Under polarization up state, off‐currents are very sensitive to temperature variation, following variable range hopping conduction. The drain currents are found to be in proportional to with T0 of 1.27 × 1012 K. To achieve variable range hopping transport, defective In2Se3 is deposited at low temperatures (240 °C) using spray pyrolysis. Fabricated In2Se3 temperature sensor on flexible polyimide substrate can detect a broad range of temperatures (RT to 200 °C) with high stability, exhibiting excellent temperature sensing performance. In addition, the very thin flexible temperature sensor array is demonstrated for large area spatial temperature sensing.
Photochemical Transformation of Metal–Organic Frameworks Constructed by 5‐Boronobenzene‐1, 3‐Dicarboxylic Acid, and Zinc Sulfate for Dynamic Information Encryption
Authors: Zhou Shufang , Xu Jintong , Wang Jiayi , Muntiza Nurimangul , Deng Qiliang 
Published: February 2025

AbstractThe reversible photo‐transformation metal–organic framework (MOF) capable of changing properties by surface chemical modification has huge potential in various industrial fields. However, such material is still rare. Herein, a crystalline 3D MOF constructed by 5‐boronobenzene‐1, 3‐dicarboxylic acid, and zinc sulfate (Zn‐BBDA) is reported, where the boronic groups are spontaneously change into the hydroxyl groups during the preparation process. The resulted MOF possesses the orderly distributed hydroxyl groups in interlayers. The photo‐responsive properties of the resulted MOF are explored. The results indicate that the appearance color and fluorescence emission of the resulted Zn‐BBDA can be simultaneously adjusted based on the oxidation‐reduction reaction of the hydroxyl group. The transformation degree of the MOF can be quantitatively monitored by fluorescence emission or Red, Green, Blue (RGB) readout. The response mechanism of the resulted Zn‐BBDA is revealed. The surface properties of the resulted Zn‐BBDA before and after irradiation are also investigated. The present material exhibits a bright future in the field of anti‐counterfeiting and antibacterial treatment. The research provides new views in exploring novel photo‐response materials.
Integrating Spatially‐Resolved Transcriptomics Data Across Tissues and Individuals: Challenges and Opportunities
Authors: Guo Boyi , Ling Wodan , Kwon Sang Ho , Panwar Pratibha , Ghazanfar Shila , Martinowich Keri , Hicks Stephanie C. 
Published: February 2025

AbstractAdvances in spatially‐resolved transcriptomics (SRT) technologies have propelled the development of new computational analysis methods to unlock biological insights. The lowering cost of SRT data generation presents an unprecedented opportunity to create large‐scale spatial atlases and enable population‐level investigation, integrating SRT data across multiple tissues, individuals, species, or phenotypes. Here, unique challenges are described in the SRT data integration, where the analytic impact of varying spatial and biological resolutions is characterized and explored. A succinct review of spatially‐aware integration methods and computational strategies is provided. Exciting opportunities to advance computational algorithms amenable to atlas‐scale datasets along with standardized preprocessing methods, leading to improved sensitivity and reproducibility in the future are further highlighted.
Nanolaminate Nano‐Optoelectrodes Enable Dual‐Channel Plasmon‐Enhanced Raman Spectroscopy for Electrochemistry
Authors: Zhao Yuming , Mejia Elieser , Xiao Chuan , Song Junyeob , Zhu Wenqi , Lezec Henri , Agrawal Amit , Zhou Wei 
Published: February 2025

AbstractIn situ monitoring of short‐lived transition states (TSs) is crucial for understanding electrochemical reaction mechanisms but remains challenging. Conventional electrochemical surface‐enhanced Raman spectroscopy (EC‐SERS) primarily provides vibrational information, with limitations in hotspot reproducibility and often overlooking electronic information associated with TSs. This study introduces a dual‐channel EC‐SERS strategy using nanolaminate nano‐optoelectrode (NLNOE) devices, integrating plasmon‐enhanced vibrational Raman scattering (PE‐VRS) and plasmon‐enhanced electronic Raman scattering (PE‐ERS) to concurrently probe TS dynamics within electrically connected plasmonic nanocavities. Using the AgCl(s) + e−⇌Ag(s) + Cl−(aq) redox system, this approach distinct PE‐VRS and PE‐ERS signatures of the (AgCl)* TS. Notably, a significant increase in PE‐ERS signals concurrent with (AgCl)* TS emergence, characterized by filled bonding and unoccupied antibonding orbitals with negligible energy gaps. This enhanced PE‐ERS signal correlates with increased (AgCl)* TS polarizability, leading to amplified PE‐VRS signals due to enhanced electron cloud distortion. By modulating Cl⁻ ion concentrations via electrolyte composition (1× PBS and 1× PBS‐equivalent KH₂PO₄) while maintaining constant total ion concentration, the competition between Ag/AgCl and Ag/AgH₂PO₄ redox reactions within Ag nanolayers is influenced. These results demonstrate the capability of dual‐channel EC‐SERS to distinguish interfacial redox reactions based on distinct electronic and vibrational signatures associated with covalent and ionic bond characteristics.