bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sequence and Chronology of Permanent Teeth Eruption in 5–18‐Year‐Old School Children of Chennai and the Influence of Sex, BMI, and Socio‐Economic Status
Authors: Vandana S. , Kandaswamy D. , Muthu M. S. , Aswath Narayanan M. B. 
Published: January 2025

ABSTRACTObjectivesThis study aimed to determine the sequence and eruption chronology of permanent teeth in school children and adolescents of Chennai and compare the findings with an existing standard table. Additionally, the study also attempted to explore the influence of sex, body mass index (BMI), and socioeconomic status (SES) on tooth eruption patterns.MethodsA cross‐sectional study was designed, and 12,650 children aged 5–18 years were selected from thirty‐five schools using a multistage random sampling method. The clinical eruption status of all permanent teeth was evaluated using a new grading system. The chronology of permanent teeth eruption was determined using probit regression analysis while the intergroup comparison was carried out using the unpaired t‐test and anova test.ResultsThe study sample included 6414 males and 6236 females. The mandibular first molar emerged as the first tooth at 5.5 years, whereas the maxillary second molar was the last to erupt, appearing at 11.9 years. A statistically significant difference (p < 0.0001) was noted between the sexes, BMI, and SES categories for most teeth; however, the variation was only 1–3 months.ConclusionAn accelerated eruption pattern was observed for all teeth, except the mandibular canines, with a notable reversal in the maxillary sequence, where canines erupted before the first premolars. Tooth eruption occurred earlier in females, in the lower jaw, right side, in normal BMI, and high SES categories. A new eruption chart has been proposed for the Indian population, based on robust data from this study, providing an updated standard reference for assessing permanent tooth emergence.
Pre‐Fusion Shape Changes of Humeral Metaphyseal Surfaces: A New Method for Assessing Maturity and Age in Non‐Adult Skeletal Individuals
Authors: Salazar‐Fernández Azahara , Carretero José Miguel , Quintino Yuliet , Harvati Katerina , Rodríguez Laura , García‐González Rebeca 
Published: January 2025

ABSTRACTObjectivesThe current research delves into the use of 3D geometric morphometric for assessing shifts in maturity within both the proximal and distal humeral metaphyses. It mainly focuses on establishing correlations between these shifts and the shape changes observed in the corresponding epiphyses established through radiographic imaging.Material and MethodsThe total sample comprises 120 right‐side proximal humeral metaphyses and 91 right‐side distal humeral metaphyses. The entire sample was categorized into four maturity groups for the humeral distal metaphysis and five maturity groups for the humeral proximal metaphysis based on the appearance and subsequent changes in shape and size. All humeri were scanned using 3D surface scanning devices. Two different 3D template configurations were created to capture the shape changes during the development of the proximal and distal metaphyses. We conducted an analysis of shape (Procrustes shape coordinates) and an analysis on the form space in order to assess both maturity changes of humeral metaphyses and their interrelationship with size.ResultsThe shape changes explained by PC1 are crucial in establishing the maturational sequence in both the distal and proximal metaphyses. These shape changes reflect the appearance and subsequent changes in shape and size of their corresponding epiphyses.Discussion and ConclusionsThere is a considerable overlap among different maturity groups related to the gradual nature of the maturational process. However, shape changes in proximal and distal humeral metaphyses are suitable to assess maturity in skeletal specimens.
Light‐induced Enhancement of Energetic Charge Carrier Extraction and Modulation of Local Charge Density to Impact Selectivity in Plasmonic Nanometals
Authors: Liu Yanjun , He Xingyue , Liu Xiao , Li Bo , Ma Jian‐Gong , Cheng Peng 
Published: January 2025

AbstractLocalized surface plasmon resonance (LSPR) metals exhibit remarkable light‐absorbing property and unique catalytic activity, attracting significant attention in photocatalysts recently. However, the practical application of plasmonic nanometal is hindered by challenge of energetic electrons extraction and low selectivity. The energetic carriers generated in nanometal under illumination have extremely short lifetimes, leading to rapid energy loss. In this work, silver nanometals modified with five distinct sulfhydryl ligands (re‐Ag‐S‐R) were synthesized via photoreduction of superlattice precursors. Modified surface efficiently extracts and preserves excited state electrons of plasmonic nanometals. By modulation the local charge density at catalytic active sites through substituents with varying electron‐donating and electron‐withdrawing properties, the selectivity of the photocatalytic carbon dioxide reduction reaction and hydrogen evolution reaction was influenced. The results demonstrated opposite selectivity between methoxy‐modified re‐Ag‐S‐OCH3 (CO selectivity of 96.73 %) and amino‐modified re‐Ag‐S‐NH2 (H2 selectivity of 96.66 %) despite their similar structures. The changes in excited states and surface contact potentials induced by LSPR were monitored using femtosecond transient absorption (fs‐TA) spectroscopy and Kelvin probe force microscopy (KPFM). Meanwhile, the detailed discussion of the LSPR mechanism in plasmonic nanometals will serve as valuable references and foundational elements for future research in this area.
Ein Anionisches, Mesoionisches Carben (anMIC) und seine Umwandlung in ein Metallo MIC‐Boran: Synthese und Eigenschaften
Authors: Rudolf Richard , Todorovski Andrej , Lederer Vera , Neuman Nicolas I. , Schubert Hartmut , Sarkar Biprajit 
Published: January 2025

AbstractNeutrale mesoionische Carbene (MICs) basierend auf 1,2,3‐Triazolen haben einige Forschungsfelder wie der homogenen Katalyse, Elektrokatalyse und Photochemie/Photophysik nachhaltig vorangebracht. Mit dieser Arbeit präsentieren wir den ersten generellen Syntheseweg zu anionischen mesoionischen Carbenen (anMICs, 2) basierend auf einem 1,2,3‐Triazol und einem Borat‐Rückgrat. Das freie anMIC ist in Lösung unter inerten Bedingungen und tiefen Temperaturen stabil und kann für mehrere Wochen in Lösung gelagert werden. Die Analyse der Donor‐Eigenschaften zeigt die starke σ‐Donor‐Fähigkeiten von anMICs, die die Donorqualitäten anderer starker Donoren wie etwa MICs, NHCs, anionischer NHCs oder N‐heterozyclischer Olefine übersteigt. Bei Raumtemperatur kann das anMIC in drei andere, gleichwohl interessante Verbindungsklassen überführt werden: Ein Amid‐koordiniertes Boran basierend auf einem MIC‐Boran (2BR3), ein polymeres Triazolid (1Li) und ein Amid‐koordiniertes metallo‐MIC‐Boran (3Li). Dieses Metallo‐MIC‐Boran ist ein interessantes Synthon für die Synthese weiterer Amid‐koordinierter MIC‐Borane. Quantenchemische Rechnungen konnten herangezogen werden um diese Umwandlung von anMICs näher zu beleuchten. Somit führen wir mit diesem Bericht drei neue Klassen mesoionischer Verbindungen mit großem Potential in Teilgebieten der Chemie und benachbarten Disziplinen ein.
Adjusting TADF and Phosphorescence for Tailored Dynamic Time‐Dependent Afterglow Colored Carbon Dots spanning Full Visible Region
Authors: Zhang Yongqiang , Liu Yue , Ren Xueyan , Kang Yihong , Ding Shurong , Lu Siyu 
Published: January 2025

AbstractTime‐dependent afterglow colored (TDAC) behavior differs from static afterglow by involving wavelength changes, enabling low‐cost, high‐level encryption and anti‐counterfeiting. However, the existing carbon dot (CD)‐based TDAC materials lack a clear mechanistic explanation and controllable wavelength changes, significantly hindering the progress of practical applications in this field. In this study, we synthesized CDs composites with customizable tunable TDAC wavelengths across the visible region. Furthermore, we elucidated the underlying mechanism of TDAC that exhibits sequential weakening and relative strengthening of long‐ and short‐wavelength afterglow centers. This phenomenon arises due to strong emission with a short lifetime originating from long‐wavelength thermally activated delayed fluorescence (TADF), along with weak emission having a longer lifetime originating from short‐wavelength phosphorescence. The presence of surface‐rich carboxyl groups on CDs determines the short‐wavelength afterglow in their dispersed state while their high conjugation degree governs the long‐wavelength afterglow in their aggregated state. Additionally, appropriate doping levels of CDs enhance color change phenomena during afterglow. Finally, by embedding CDs into different rigid matrix, the range of afterglow changes can be tailored arbitrarily within the visible light region. Leveraging these exceptional TDAC characteristics has allowed us to successfully develop advanced 4D coding technologies that facilitate multi‐mode anti‐counterfeiting and dynamic information encryption.
On the evolution of psychological theory: Advancing from empirical effects to single‐process explanations to multi‐process models
Authors: Rucker Derek D. , Petty Richard E. 
Published: January 2025

AbstractThis paper presents a framework on the evolution of psychological theory in both consumer psychology and psychology more generally, moving from empirical observations of relationships to explanatory multi‐process models. The authors argue that psychological research appears unnecessarily inhibited, at times, to effects‐based or single‐process explanations of causal relationships. Such approaches, while fruitful for planting seeds of ideas, may limit the growth of psychological research. To provide a path to deeper theory building, involving more explanatory and predictive models, the authors introduce an approach based on the evolutionary stages of theory. This approach involves stating the necessary conditions to advance an evolutionary stage, along with visual examples of theory and empirical examples largely from the literature in consumer psychology. The upshot is a framework aimed to align scholars in understanding how to think about and discuss theoretical contributions. Finally, by adopting this approach, the authors suggest that psychological science can better address current challenges, such as the replication crisis, and foster more impactful research.
Construction of Luminescent Three‐Dimensional Covalent Organic Frameworks for Molecular Decoding of Wide Organic Compounds
Authors: Chen Dan , Jia Xu , Zuo Jiarui , Zheng Xuhan , Sun Qingzhu , Liu Hui , Zhao Yingjie 
Published: January 2025

AbstractConstructing highly conjugated three‐dimensional covalent organic frameworks (3D COFs), particularly those with luminescent features, remains a significant challenge. In this work, we successfully synthesized a 3D COF, named 3D‐Py‐SP‐COF, using a rigid and orthogonal spirobifluorene building block for the spatial 3D structure construction and planar pyrene as luminescent units. The incorporation of the pyrene and the unique rigid 3D network structure endow 3D‐Py‐SP‐COF with fluorescent properties. The successful formation of this 3D COF was verified by FT‐IR, solid‐state 13C CP‐MAS NMR. Structural simulations based on the experimental powder X‐ray diffraction analysis revealed that 3D‐Py‐SP‐COF adopted a two‐fold interpenetrated pts topology. The highly conjugated porous framework and fluorescent nature allow precise detection and localization of more than two dozen volatile organic compounds (VOCs), including aromatics, alcohols, and other commonly encountered industrial VOCs.
Triune Engineering Approach for (+)‐valencene Overproduction in Yarrowia lipolytica
Authors: Chen Ying , Su Liqiu , Liu Qi , Zhang Ge , Chen Hongyang , Wang Qinhong , Jia Kaizhi , Dai Zongjie 
Published: January 2025

ABSTRACTThe sesquiterpene (+)‐valencene, with its flavor and diverse biological functions, holds promise for applications in the food, fragrance, and pharmaceutical industries. However, the low concentration in nature and high cost of extraction limit its application. This study aimed to construct a microbial cell factory to efficiently produce (+)‐valencene. The strain Yarrowia lipolytica YL238, possessing a stronger capacity for (+)‐valencene synthesis, was selected and utilized as the chassis for further modifications. By fine‐tuning the mevalonate and squalene synthesis pathways we achieved a remarkable 13.2‐fold increase in (+)‐valencene titer compared to the original strain. Following directed evolution was employed to screen for efficient (+)‐valencene synthase, which further enhanced (+)‐valencene production by 138%. Consequently, the engineered strain overproduced 813 mg/L of (+)‐valencene in shake flasks, marking the highest titer reported in microbials to date. Furthermore, in fed‐batch fermentation, this engineered strain showed the capacity to produce 3.3 g/L of (+)‐valencene. This study offers a successful model for the application of the “strain‐pathway‐enzyme” triune strategy in the metabolic engineering of Y. lipolytica, and these methodologies could be broadly utilized for the synthesis of other natural terpenes.
Compulsive sexual behaviours and relational consequences: A phenomenological study on intimate female partner impacts
Authors: Seyed Aghamiri Fakri , Luetz Johannes M. , Hills Karenne 
Published: January 2025

AbstractBackgroundStudies on sexual addiction (SA) and compulsive sexual behaviour (CSB) outline a new area of counselling research touching on a variety of social, gendered, and cultural repercussions for those who are affected, including individuals, families, intimate partners, and society. Taboos surrounding SA/CSB frequently cast the topic in an ignorant and shameful light.Aims/MethodsAlthough SA/CSB in men is gaining scholarly attention, very few studies have examined the complex relational effects on intimate female partners (FPs). This study closes this knowledge gap through a descriptive phenomenological research design. Using in‐depth semi‐structured interviews, FPs (n = 12) and professional therapists (n = 15) articulated relational impacts and experiences.Results/DiscussionThe results reveal intra‐ and inter‐relational fractures, often contributing to detective work, self‐harm, and suicidal ideation in SA/CSB‐affected women.ConclusionFor a variety of stakeholder groups, this study is important because it highlights methods by which academics, therapists, and religious organisations might provide more specialised support during the healing and recovery process.
Twin Reversed Arterial Perfusion Sequence Diagnosed Late in the Third Trimester: A Case Report and Literature Review
Authors: Dejene Tafese , Kebede Abdi , Fetensa Getahun , Bekele Delayehu , Mesfin Telila , Hussen Kelil 
Published: January 2025

ABSTRACTThe twin reversed arterial perfusion (TRAP) sequence is a rare complication associated with monochorionic twins. It is characterized by blood flow from the umbilical artery of the normal (pump) twin to the umbilical artery of the abnormal (acardiac) twin via artery‐to‐artery anastomosis. This condition is associated with 100% mortality in the acardiac twin and a high rate of perinatal morbidity and mortality in the pump twin, primarily due to intrauterine hypoxic injury, heart failure, and prematurity. Following delivery, the surviving pump twin may experience adverse neurodevelopmental outcomes and heart failure, necessitating ongoing follow‐up care. The goal of managing pregnancies complicated by the TRAP sequence is to deliver a healthy, near‐term pump twin through early detection, timely intervention, and continuous follow‐up. However, in low‐resource settings, such as the case presented here, the condition may progress undiagnosed into the third trimester due to a lack of experienced physicians and/or obstetric ultrasound scans. This case report serves as an entry point for a comprehensive review of the literature on management options for the TRAP sequence, specifically focusing on factors to consider when managing patients conservatively in resource‐limited environments or in cases that are referred or diagnosed late.
Easily Accessible and Solution‐Stable Ni(0) Precatalysts for High‐Throughput Experimentation
Authors: Thomas Gilian T. , Cruise Odhran D. , Peel‐Smith Daelin , Fernández Nahiane Pipaón , Killeen Charles , Leitch David C. 
Published: January 2025

AbstractWe report the synthesis, characterization, and catalytic applications of N,N’‐diaryl diazabutadiene (DAB) Ni(0) complexes stabilized by alkene ligands. These complexes are soluble and stable in several organic solvents, making them ideal candidates for in situ catalyst formation during high‐throughput experimentation (HTE). We used HTE to evaluate these Ni(0) precatalysts in a variety of Suzuki and C−N coupling reactions, and they were found to have equal or better performance than the still‐standard Ni(0) source, Ni(COD)2.
A Simple and Efficient Stereoselective Synthesis of a 2,3‐Difluorosialic Acid‐Based Influenza Virus Neuraminidase Inhibitor
Authors: El‐Deeb Ibrahim M. , von Itzstein Mark 
Published: January 2025

Abstract3‐Fluoroneuraminosyl fluorides are invaluable probes for studying the catalytic mechanism of sialidases (neuraminidases), and as sialidase inhibitors. Significantly, when a C‐3 equatorial fluorine is installed on a C‐4 functionalised N‐acylneuraminic acid (Neu)‐based template, the compounds are potent and selective inhibitors of both influenza and parainfluenza sialidases, and of virus replication. Typically, the reported syntheses of 3‐fluoroneuraminosyl fluorides involve either an enzymatic or a chemical synthesis that have uncontrolled stereoselectivity in the introduction of fluorine at C‐3 of Neu and consequently yield a mixture of C‐3 ax and C‐3 eq fluoro derivatives. We now report a simple approach for the exquisitely stereo‐controlled introduction of the C‐3 equatorial fluorine on Neu by incorporation of steric bulk at C‐4. Through this method, we have elaborated a novel synthetic route that exclusively produces the potent anti‐influenza drug candidate; 2,3‐difluoro‐zanamivir analogue with C‐3 eq fluoride.
Optimizing WSN Network Lifetime With Federated Learning–Based Routing
Authors: S Jim Hawkinson , SM Ramesh , A Sundar Raj , B Gomathy 
Published: January 2025

ABSTRACTWireless sensor networks (WSNs) have become essential in applications such as environmental monitoring and smart infrastructure due to their ability to provide real‐time data collection and analysis. However, WSNs face significant challenges related to limited battery life and the need for efficient energy management, which can impact their performance and longevity. Traditional routing protocols often fail to adapt to dynamically changing conditions and energy constraints inherent in WSNs, necessitating innovative approaches to enhance energy efficiency and network longevity. This paper introduces a federated learning–based adaptive routing (FLAR) model designed to address these issues by integrating federated learning with adaptive routing protocols. The primary aim of this research is to optimize energy utilization across the network and extend the operational lifespan of WSNs. The novelty of the proposed FLAR model lies in its unique combination of energy‐aware participant selection (EaPS), adaptive model compression (AMC), and dynamic data sampling (DDS), which collectively enhance energy efficiency and adapt dynamically to changing network environments. The FLAR model was simulated and analyzed using Network Simulator 2 (NS2) under various network conditions and node densities. The results demonstrate that the FLAR model significantly outperforms traditional protocols by reducing energy consumption by up to 30% and enhancing network longevity by approximately 25%. Additionally, the proposed methodology improves packet delivery ratio and reduces latency, making it a robust solution for sustainable WSN deployment. Overall, the FLAR model offers a significant advancement in WSN technology by effectively managing energy resources and dynamically adapting to network changes.
A Pervasive Model to Evaluate and Ranking the Best 5G Mobile by Cross‐Entropy and TOPSIS Method
Authors: Dwivedi Pankaj Prasad , Sharma Dilip Kumar 
Published: January 2025

ABSTRACTThe development of the new 5G mobile generation is among the most significant and recent breakthroughs in communications and information technology. Compared to older networks, the most recent wireless cellular technology offers more capacity, dependable connections, and quicker upload and download rates. The newest generation of mobile phones, or 5G phones, have significantly quicker speeds and are more dependable. They have the potential to completely change the way we access social media, websites, and information. This study was carried out to address the issue that many 5G mobile users frequently face when deciding which phone is best for them based on many factors. This study contributes to putting out a strategy for assessing and ranking the various 5G mobile possibilities in light of consumers' order of predilections in multicriteria decision‐making (MCDM). In this study, we studied 15 different 5G mobiles based on data from mobile companies with 10 criteria. First, the most appealing criteria that affect a person's decision about a 5G mobile are determined. This is accomplished by a survey of the target audience, the expertise of industry professionals in the communications area, and research in the literature. For assessing the 5G mobile alternatives, the TOPSIS approach is employed, and the relative weights of assessment criteria are calculated by the cross‐entropy approach, which is new in terms of MCDM. This study demonstrates the usefulness of the suggested strategy.
Amyloid‐related changes in fluency in patients with subjective cognitive decline
Authors: van den Berg Rosanne L. , Butterbrod Elke , de Boer Casper , Schlüter Lisa‐Marie , van Harten Argonde C. , Teunissen Charlotte E. , van de Giessen Elsmarieke , van der Flier Wiesje M. , Sikkes Sietske A. M. 
Published: January 2025

AbstractINTRODUCTIONWe examined semantic and phonemic fluency in individuals with subjective cognitive decline (SCD) in relation to amyloid status and clinical progression.METHODSA total of 490 individuals with SCD (62 ± 8 years, 42% female, 28% amyloid‐positive, 17% clinical progression) completed annual fluency assessments (mean ± SD follow‐up 4.3 ± 2.9 years). Associations between fluency trajectories, amyloid status, and clinical progression were examined with linear mixed models and joint models.RESULTSAmyloid‐positive individuals declined faster than amyloid‐negative individuals on semantic fluency (B = −0.35, p < 0.001), but not on phonemic fluency (B = −0.06, p = 0.218). An annual decline of one word in semantic and phonemic fluency was associated with 22% (hazard ratio [HR] = 1.22, p < 0.001) and 28% (HR = 1.28, p = 0.004) increased risk of clinical progression.DISCUSSIONOur results indicate that decline in semantic fluency is an early indicator of cognitive deficits in preclinical Alzheimer's disease.Highlights
Abnormal amyloid burden is associated with decline in semantic fluency.
Fluency trajectories are associated with an increased risk of clinical progression.
More refined measures are needed to detect the earliest language deficits.