bluuebunny/crossref_metadata_2025 huggingface dataset:
ONLINE SCHOOL: BIOGRAPHICAL RECONSTRUCTION OF AN ALTERNATIVE THE EDUCATIONAL PATH
Authors: Proshkova Zoya V. , Yeremenko Evgeniy D.
Published: November 2024

Purpose. To analyze the development and implementation of an alternative educational route for schoolchildren and their families, namely, the transition to an online school in high school.
Methodology. The study used a biographical method: the collection of autobiographical writings about the educational path and the educational experience gained in online schools. An additional empirical approach is e-mail interviewing.
Results. Eight groups of reasons for choosing to study in online schools in high school have been identified. The most significant motives are dissatisfaction with the quality of teaching and low academic performance in the previous school, personalization of the educational program. Among other reasons, the preference for the online learning format is preparation for state exams and university admission, security, health problems, relocation. The decision to change the student's educational route is made by the family, and the parents have previously changed the child's school. High school students in online schools show an increased interest in technical education and obtaining technical professions. The cognitive boundaries of the collection of biographical works are determined by the peculiarities of reconstructing educational biographies. The authors of the texts exaggerate independence in planning and implementing the educational route, including the transition to online learning. Biographical writings underestimate the role of the family in making and implementing educational decisions. The problem is overcome by additional interviewing of the authors of the texts.
Practical implications. The results of the study can be applied in social policy in the fields of education and the labor market. And also in the training of students and postgraduates of sociological specialties.
Development of computational thinking in primary school lessons
Authors: Shiltova O.
Published: November 2024

The article deals with the actual problem of the formation of computational thinking in primary school children. Examples of the organization of work with younger students in various lessons are given. The literature on the research topic was analyzed, the experience of domestic and foreign teachers was summarized.
The relationship between the components of the direction of organizational learning as a way to improve one's own knowledge and schools of strategic management
Authors: Tebekin A.
Published: November 2024

The relevance of the presented research is determined by the fact that after Russia's withdrawal from the Bologna system, the search for the best option for the domestic system of higher education as the closest to the period of subsequent professional activity of a person continues. In this regard, it is of interest to consider the accumulated historical experience of approaches to training through the prism of increasing the efficiency of human labor activity.
The purpose of the presented research is to identify the relationship between the components of the direction of organizational training as a way to improve one's own knowledge from an educational standpoint and schools of strategic management as one of the key components of practical activity.
The scientific novelty of the obtained results lies in the definition of the logical relationship of the main components of the direction of organizational learning as a way to improve one's own knowledge (intuition, interpretation, integration, institutionalization), considered from an educational standpoint, with the main schools of strategic management (including groups of prescriptive, descriptive and integrating schools), considered from the standpoint of practical economic activity. The practical significance of the obtained results lies in the possibility of taking them into account when constructing models of higher and postgraduate education systems.
Features of the formation of value and semantic orientations in adolescents in extracurricular activities
Authors: Semenova E.
Published: November 2024

The article is devoted to the problem of the formation of value and semantic orientations in adolescents in extracurricular activities, which is relevant in modern conditions. The author of the article notes that the study of the value-semantic component of the personal structure of adolescents is of the greatest interest, since the parent, class teacher, and peer participate in its formation. The article focuses on the role of the class teacher, since he acts as a significant adult for adolescents. Provided that the class teacher can be an active bearer of personal meanings in the context of cultural development and be an example, a certain spiritual and moral guideline for his group. In order to make sure whether the class teacher is an authority for the group, sociometry was carried out. The author focuses on the fact that it is necessary to choose the type of activity in which the formation of value and semantic orientations will be organically built. Teenagers were asked to evaluate their value orientations. The results of the survey with class teachers made it possible to identify existing problems in the formation of the value-semantic sphere of adolescents and to identify the main directions of activity of curators for taking into account and subsequent adjustments in their current practical teaching and educational activities.
Formation of social and civic competence in the activities of children's and adolescent associations
Authors: Makarova V. , Portnova O.
Published: November 2024

The article considers the possibilities of a children's and teenage association in the formation of social and civic competence. The authors point to the special conditions of additional education that allow solving the educational tasks of developing in children and adolescents the necessary skills of social activity in informal associations with their further application in the functioning of civil society.
Artificial Intelligence for Enhancing Engineering Project Management During Emergencies: Perception-based Analysis
Authors: Sobchenko Volodymyr , Bashynskyi Andrii , Piatkov Maksym , Shaforost Serhii , Chmyr Viktor
Published: November 2024

Purpose: The research studies the impact of various Artificial Intelligence (AI) tools on engineering project management and describes how they affect management success during emergencies in the Ukrainian context. Special attention is paid to the skills comprising AI readiness among engineers and their formation in the system of continuous education.
Methodology/Approach: The study employed a perception-based analysis and applied the social cognitive theory and expectancy theory, enabling structured opinion-based questionnaires on Likert scales and assessing engineering project success after the introduction of AI tools. The research involved 96 engineers with diverse roles and expertise representing civil engineering companies or military organisations.
Findings: The research explained the peculiarities of some challenges hindering engineering project management and defined traditional, agile, and hybrid engineering project management used during emergencies. 25 AI tools were outlined, and their impact on project success was revealed. The category of AI readiness was described, and its components were presented.
Research Limitation/implication: Since the perception-based analysis relies on subjective views, it may not fully present the objective evaluation of AI tools in engineering project management during emergencies. The findings can be used to improve engineers' training programs by integrating AI-focused modules.
Originality/Value of paper: The research provides a context-specific understanding of how AI can be applied to the unique challenges faced in Ukraine.
Suggestions for Integrated BSC-DEA Implementation in the Industry 4.0 Company
Authors: Kočišová Michaela , Fiľo Milan , Kádárová Jaroslava
Published: November 2024

Purpose: The implementation of the integrated BSC-DEA model in an Industry 4.0 company involves leveraging advanced technologies to enhance its performance measurement. This approach enables real-time monitoring of KPIs, optimising operational efficiency while ensuring continuous improvement in a rapidly evolving digital environment. By integrating BSC-DEA with Industry 4.0 principles, companies can achieve a more agile and data-driven decision-making process, securing a sustainable competitive advantage.
Methodology/Approach: The integration uses BSC to identify KPIs, which are then applied in the DEA model. This allows an Industry 4.0 company to benchmark performance and optimise resource use through targeted improvements.
Findings: This research overview presents a structured approach to understanding the proposal for applying the integrated BSC-DEA model in an Industry 4.0 company. Continuous feedback, data validation, and periodic reviews ensure that the model facilitates sustainable performance improvement.
Research Limitation/implication: The proposed implementation process requires a substantial commitment of time and resources, along with support from all levels of the Industry 4.0 company.
Originality/Value of paper: The research presented in this paper introduces novel concepts, methodologies, and findings that advance the current state of knowledge. The originality of this work is demonstrated through innovative approaches to existing problems, as well as the analysis and synthesis of diverse ideas to develop new theoretical processes, models, and practical implications.
Toyota Way – the Heart of Toyota Production System and its Impact on Sustainable Company Growth
Authors: Palhau Mariana , Sá José Carlos , Ávila Paulo , Dinis-Carvalho José , Rodrigues Carlos , Santos Gilberto
Published: November 2024

Purpose: This paper intends to evaluate the impact of Toyota Way (TW) focused activities on operational performance and its connection to sustainability and long-term success.
Methodology/Approach: Three theoretical-practical activities were implemented in a real pickup assembly plant. Performance was assessed through the recording of standard documentation before and after implementation, direct observation at the gemba, and anonymous qualitative surveys of those involved.
Findings: Results show how TW enhances workers' skills alongside TPS through experiential learning, fostering continuous improvement with minimal or no financial investment and creating value iteratively and exponentially. However, it had a limited impact on environmental factors. TW emerges as a critical link between short-term operational performance and long-term sustainable growth.
Research Limitations/Implications: The sample is restricted to a single assembly plant in Portugal. The surveys involved between 5 and 13 respondents per activity.
Originality/Value of paper: In contrast to TPS and lean manufacturing, current literature on TW is limited, often outdated, and lacks clarity regarding its Japanese and American interpretations. Furthermore, few studies emphasise the human element as a driver of company growth—a factor often overlooked by companies.
Evidências de Validade de Conteúdo de uma Medida de Competências Socioemocionais para Crianças e Adolescentes
Authors: Marques Louise , Soares Ana Clara Capistrano , De Andrade Lucas Barrozo , Lima Adriana , Oliveira Bruno , Landeira-Fernandez Jesus , Anunciação Luis
Published: December 2024

O desenvolvimento de competências socioemocionais de crianças e adolescentes tem sido alvo de intensa investigação ao redor do mundo nas últimas décadas. No Brasil, este tema tem ganhado cada vez mais relevância, embora haja uma escassez de instrumentos com evidências psicométricas que avaliem o curso de desenvolvimento destas competências. Portanto, o objetivo deste estudo consiste em apresentar evidências iniciais na construção de um instrumento de avaliação do desenvolvimento de competências socioemocionais para crianças e adolescentes. Para alcançar este objetivo, foram selecionados cinco instrumentos em língua inglesa listados pelo Collaborative for Academic, Social, and Emotional Learning e foram criados itens. Foi realizado processo de tradução e retrotradução. Ao final desse processo, foi solicitada a análise dos itens por três especialistas, considerando a clareza, pertinência e consistência teórica dos itens analisados. De forma geral, os itens demonstraram níveis de clareza, pertinência e consistência teórica adequada. Tais resultados indicam que o conjunto final de itens apresentou evidências de validade de conteúdo e demonstrar ser consistentes e relevantes para investigação em novos estudos.
PREMIO INTERNACIONAL GEOCRÍTICA 2020 A LA PROFESORA DIRCE SUERTEGARAY
Authors: Capel Horacio , Ribeiro Wagner Costa
Published: December 2024

Acta del Jurado
El Jurado Internacional ha acordado conceder el Premio Internacional Geocrítica 2020 a la Profesora Dirce M. A. Suertegaray por su contribución teórica y aplicada a la Geografía desde una perspectiva crítica, y por su compromiso institucional.
 Barcelona y São Paulo 10 de febrero de 2020
ANÁLISE ESTRUTURAL DE UM ECOSSISTEMA DE FLORESTA TROPICAL
Authors: Pereira Raphael do Couto , Pinto Helena Marquini Zuntini , Vitorio Cleber Vinicius Akita , Almeida Josimar Ribeiro de , Ferreira Leticia Cardoso , Cunha Tatiana Santos da , Gurova Tetyana
Published: December 2024

A floresta estudada é altamente heterogênea, com essa heterogeneidade aumentando à medida que aumenta o tamanho da cobertura vegetal pois para o nível I de abordagem encontraram-se valores médios de 1:14, 1:10, 1:13 e 1:9 para o quociente de mistura de Jentsch, respectivamente para a população total, população sem cipós, população sem palmeiras e população sem cipós e palmeiras, aumentando esses valores no nível Il para 1:3 e nível III para I :2. O valor igual do quociente de mistura nos níveis II e III, para as quatro frações do povoamento deve-se ao fato de que nesses níveis a presença de cipós e palmeiras é insignificante em relação ao total de indivíduos. Entretanto, no nível I, a retirada aumenta o quociente de mistura e, portanto, a heterogeneidade florística dessa fração do povoamento.
A Survey of the Clinical Practice Status of Korean Medicine Doctors for Depression: Preliminary Data on Clinical Practice Guidelines
Authors: Suh Jin-Woo , Kim Sang-Ho
Published: December 2024

Objectives: Although antidepressants and cognitive behavioral therapy are first-line therapies for patients with depression, they have some limitations. Korean medicine has been traditionally used in Korea to manage depression; however, the current clinical practice status of depression treatment by Korean medicine doctors (KMDs) is unknown. Therefore, this study aimed to investigate the current clinical practice status of KMDs for depression.Methods: KMDs were surveyed online from October 2021 to November 2021. A total of 712 KMDs responded to the survey.Results: Hwabyung and depressive syndrome were the most frequently diagnosed conditions. Among the patients who initially visited the KM clinic, 51.3% were taking antidepressants, with the majority seeking treatment to alleviate physical symptoms associated with depression. Acupuncture and herbal medicine decoctions were the most commonly administered treatments, with body acupuncture being the preferred modality (average: 2.37 times per week). The preferred acupoints were GV20, HT7, PC6, LI4, SP6, and ST36.Conclusion: This survey provides insights into the clinical practice landscape of KMDs in treating depression. These results will help develop clinical practice guidelines and conduct clinical trials on this topic in the future.
Double-blind Randomized placebo-controlled Trials on controlling blood glucose level using the extract from Opuntia ficus-indica var. saboten
Authors: Kim Ki Tae , Leem Kang Hyun , Jung Jin Hwa
Published: December 2024

Objectives: The aim of this study was to evaluate the effects of Opuntia ficus-indica var. saboten extract on blood glucose regulation in both healthy individuals and those with impaired fasting glucose (IFG). Additionally, the study assessed the safety of Opuntia extract regarding liver and kidney function over a 12-week period.Methods: A double-blind, randomized, placebo-controlled clinical trial was conducted with 85 participants, including 47 healthy individuals and 38 individuals with impaired fasting glucose (IFG) or impaired glucose tolerance (IFG). Participants were randomly assigned to receive either Opuntia extract or a placebo for 12 weeks. Blood glucose control was evaluated using fasting blood glucose (FBS), oral glucose tolerance tests (OGTT), HbA1c, insulin, and C-peptide levels. Safety assessments included liver function tests (AST, ALT, γ-GTP, ALP) and kidney function tests (BUN, creatinine). Data were analyzed using independent and paired t-tests, with a significance level of p<0.05.Results: A total of 85 participants were initially enrolled, and after excluding 13 participants due to dropout, consent withdrawal, or protocol violations, the final statistical analysis was conducted with 72 participants. In the IFG group, Opuntia extract significantly reduced fasting blood glucose levels compared to the placebo group (p=0.010). Additionally, Opuntia extract reduced postprandial blood glucose levels at 120 minutes during the OGTT in healthy participants (p=0.047). No significant changes were observed in HbA1c, insulin, or C-peptide levels. Importantly, no adverse effects on liver or kidney function were detected in either group during the 12-week intervention.Conclusions: The administration of Opuntia ficus-indica var. saboten extract for 12 weeks demonstrated significant blood glucose-lowering effects in individuals with impaired glucose tolerance, without causing any liver or kidney toxicity. These findings suggest that Opuntia extract may be a safe and effective natural option for blood glucose regulation, particularly in pre-diabetic individuals. Further large-scale studies are recommended to confirm these results and explore its potential clinical applications.
A study on the Attitudes and Experiences of Korean Medicine College Students toward Integrated Education in the Acupuncture&Moxibustion Medicine and Korean Rehabilitation Medicine
Authors: Oh Do-Hyeon , Bak Ji-Ha , Park Chan-Uk , Kim Seon-Kyoung , Kwon Chan-Young , Seo Jong-Cheol
Published: December 2024

Objectives: This study aimed to compare the satisfaction, comprehension levels of students taking integrated or non-integrated musculoskeletal education in Korean medicine colleges.Methods: We conducted a survey targeting third year students at University A taking musculoskeletal medicine (integrated education) and third year students at University A and third, fourth year students at University B taking acupuncture and moxibustion medicine and Korean rehabilitation medicine (separate education). The questionnaire, consisting of 25 items, was developed through consultation with faculty members in major of acupuncture or education. Questions include items related to general perceptions of the subjects, operation, and evaluation of the courses, and learning experiences. The collected data were analyzed through frequency analysis, t-test and Chi-square tests.Results: A total of 114 out of 217 people responded, of which 112 responses were valid. When comparing the comprehension of subjects, significant differences were mostly not observed. In other words, subject comprehension was found to have no correlation with the implementation of integrated education. In terms of the need for integrated education, the third year students at university B (non-integrated education / 5.0±0.7) showed significantly higher scores than the third year students at university A (integrated education / 4.2±1.4) (t=-2.594, p=0.012). Regarding the components for implementing integrated education, it was found that unification of learning tools such as textbooks and teaching methods is necessary.Conclusions: We conducted a survey to analyze students’ perceptions of musculoskeletal integration education. This study could be utilized not only in musculoskeletal medicine but also in future integrated education studies in Korean medicine.
Effects of Korean Herbal Medicine on the Recovery of Exercise-Induced Fatigue and Exercise Performance: Narrative Review of animal experiments in Korea
Authors: Lee Seungyong , Shin Byung-Cheul , Kho Changwon
Published: December 2024

Objectives: Many athletes utilize herbal medicines to enhance their performance. However, studies comprehensively analyzing the impact of Korean herbal medicine (KHM) on exercise performance enhancement are lacking. This study aimed to explore the basis of animal experimental studies on KHM in improving athletic ability and anti-fatigue effects and derive an evidence-based relationship between exercise and KHM intake.Methods: We conducted a systematic search of articles within the Oriental Medicine Advanced Searching Integrated System (OASIS) database. Animal-controlled experimental studies exploring exercise performance and fatigue recovery effects after administering KHM were selected and analyzed. Data were categorized based on exercise methods and outcomes, examining the effects of different KHM.Results: Through experimental research analysis, the effect of KHM on exercise was focused on muscle strength, cardiopulmonary endurance, and anti-fatigue, among basic components of exercise ability. For example, when administering Allii tuberosi semen and Ginseng Radix to an animal model, remarkable muscle strength enhancements were observed. Administration of Allii tuberosi semen, Ginseng Radix, Cervi Parvum Cornu, Ssanghwa-tang, Kyeongok-go, Yukmijihwang-tang, Jakyak-gamcho-tang, and Sogunjung-tang resulted in cardiovascular endurance improvements. Furthermore, Cervi Parvum Cornu, Ganoderma, Ssanghwa-tang, Dangguibohyul-tang, Ssangbohwan, Bojungikgi-tang, Bojungikgi-tang, Jakyak Gamcho-tang, and Sogunjung-tang were effective for fatigue recovery after exercise. We examined the impact of KHM on muscle strength, cardiovascular endurance, and fatigue recovery during exercise.Conclusions: This systematic review of animal-controlled experimental studies establishes a robust evidence-based relationship between KHM consumption and enhanced athletic abilities, offering valuable insights for athletes exploring natural strategies for performance enhancement.
How do researchers study emotion in and around law?
Authors: Rossmanith Kate , Roach Anleu Sharyn , Barclay Katie
Published: November 2024

Research on law and emotion has flourished in the last quarter of a century, underpinned by a range of theoretical and philosophical approaches. The field, while deeply interdisciplinary, originally developed around several disciplinary silos through the research of legal practitioners, jurisprudence theorists, social scientists and humanities scholars. Despite the field’s growth, methodological approaches have largely remained disparate. Researchers, all working from within their own disciplinary training, rarely make explicit the definition of ‘emotion’ and ‘law’ with which they are working, nor how the methods they choose to deploy sit in relation to those definitions. This article takes stock of methodologies, methods and data that seek to account for emotion in legal contexts. It aims to identify how law and emotion researchers are doing what they are doing, and to what ends, and seeks to distinguish ‘emotions’ in law and emotions research. It considers various theories of emotion underpinning law and emotion scholarship, canvassing how and to what extent scholars, when researching law and legal actors, are articulating the object of study, ‘emotions’; and takes into account different ways that researchers identify, theorise and deploy the concept of law. The article discusses empirical mixed methods, analysis of material artefacts, creative arts practices, and the place of researcher emotion. An explicit discussion of the different theoretical and philosophical approaches to emotion and to law that underscore current research, will help facilitate a productive cross-pollination of methods, including recognising the utility of different methods for particular research questions.
High-speed Photonic Tensor Core Utilizing Lithium Niobate Modulator Array
Authors: Jiao Wenting , Gao Yang , Zhang Lei , Yin Kun , Yu Hui
Published: December 2024

We present a photonic tensor core for convolution computation utilizing modulator arrays on lithium niobate platform, enabling significant enhancements in computational speed and integration capabilities.
Robust SOP-Based Vibration Sensing Integrated in DSCM System Based on Frequency-Domain Pilot Tones
Authors: Yang Bang , Tang Jianwei , Zhuo Quhao , Hao Yaguang , Fan Linsheng , Wang Shangyi , Gao Shuang , Liang Junpeng , Hu Weisheng , Yao Yong , Wei Jinlong , Yang Yanfu
Published: December 2024

Integrated optical fiber communication and 100kHz-level vibration sensing in DSCM system is demonstrated with frequency-domain pilot tones used for simultaneous carrier phase tracking, polarization demultiplexing and SOP-based vibration sensing.
Unlocking Tissue Secrets: Live Histology without Labels Through Microtructured Imaging Windows
Authors: Marini M. , Bouzin M. , Sironi L. , Presotto L. , Riccio J. , Panzeri D. , Inverso D. , Collini M. , D’Alfonso L. , Chirico G.
Published: December 2024

Ex-vivo histology is time consuming, subjective, and invasive. We discuss how, by coupling non-linear excitation and structured illumination to physically inspired image reconstruction and micro-structuring optical windows, we can obtain in-vivo tissue histology.
Space Division Multiplexing Optical Coherence Tomography for Wide-field Angiographic Imaging of the Human Retina
Authors: Adkins Aaron J , Hao Senyue , Ren Chao , Song Andrew , Zhou Chao
Published: December 2024

We have constructed a parallelized 4-channel multi-beam optical coherence tomography system capable of achieving high speed and wide field of view angiographic imaging of the retina.
Quantum Walk Optical Frequency Comb Laser in the Near Infrared
Authors: Marzban Bahareh , Miller Lucius , Dikopoltsev Alexander , Bertrand Mathieu , Scalari Giacomo , Faist Jerome
Published: December 2024

Leveraging insights from a mid-infrared quantum walk comb laser, we experimentally demonstrate its highly controllable near-infrared counterpart. We show a 1.050 THz flat-top bandwidth centered at 1604.5 nm and the ballistic expansion of its bandwidth.
Experimental Comparison of Parametric Attenuation Models in Optical Coherence Tomography of Highly Scattering Media
Authors: Untracht Gavrielle R. , Zimmer Morgane , Lindvold Lars , Marti Dominik , Andersen Peter E.
Published: December 2024

We investigate the accuracy of several models for extracting optical properties of tissue from optical coherence tomography images and assess their suitability for use in highly scattering media.
3D printed freeform silica microlens for ultrathin high-performance OCT endoscopy
Authors: Xu Chao , Hong Zhihan , Liang Rongguang , Yuan Wu
Published: December 2024

Traditional fabrication techniques for miniature optical coherence tomography (OCT) endoscopes face difficulties, including compromised imaging quality and restricted design flexibility. To overcome these challenges, we have developed an ultrathin OCT endoscope with high imaging performance by leveraging 3D printed freeform silica microlenses.
Heterogeneously Integrated Near-Infrared Fabry-Perot Diode Laser on Tantalum Pentoxide
Authors: Jahan Nusrat , Weight Skyler C. , Stanton Eric J. , Dorche Ali Eshaghian , Silverman Kevin L. , Nam Sae Woo , Mirin Richard P. , Nader Nima
Published: December 2024

We present a Fabry-Perot diode laser heterogeneously integrated with tantalum pentoxide (Ta2O5/tantala) waveguides on a silicon substrate. Devices with etched facet and tantala loop mirrors, and of varying lengths and widths, are characterized.
Chip-scale high-performance photonic microwave oscillator
Authors: He Yang , Cheng Long , Wang Heming , Zhang Yu , Meade Roy , Vahala Kerry , Zhang Mian , Li Jiang
Published: December 2024

We report a chip-scale high performance photonic micrwave oscillator based on integrated electro-optical frequency division, which achieves a phase noise level of −141 dBc/Hz at 10 kHz offset for scaled 10 GHz carrier output.
High loss reveals gaseous chlorine in antiresonant hollow core fibres
Authors: Harrington Kerrianne , Mears Robbie , Stone James M , Wadsworth William J , Knight Jonathan C , Birks Tim A
Published: December 2024

We observe unexpectedly high loss at ultraviolet wavelengths in freshly-drawn anti-resonant hollow core fibres. The loss matches the absorption spectrum of gaseous (molecular) chlorine, and dissipates over time.
Resonant mode analysis and 2D projection via waveguide-on-cantilever ski jumps
Authors: Zimmermann Matthew , Saha Matt , Wen Y. Henry , Greenspon Andrew S. , Dong Mark , Leenheer Andrew J. , Gilbert Gerald , Eichenfield Matt , Englund Dirk
Published: December 2024

We characterize mechanically resonant modes of a broadband waveguide on a piezoelectrically-actuated cantilever with <0.1 mm2 device size that is capable of projecting tens of thousands of beam spots via 2D resonant steering.
Stress-controlled, Low-Loss and Conformal Optical Coatings by High-Throughput Spatial ALD
Authors: Sortino Emanuele , Maydannik Philipp , Rönn John , Niiranen Kalle , Kääriäinen Tommi
Published: December 2024

We present a new-generation Spatial ALD system that achieves oxide deposition rates of 2000 nm/h at ≤150°C, with tunable stress, refractive index, and low optical loss over conformal geometries.
A Vertical-Junction Carrier-Depletion Micro-Ring Modulator
Authors: Uddin M. Rakib , Wallner Jin , Dikshit Amit , Mann Javery , Hossain M. Jobayer , Timalsina Yukta , Aiello Anthony , Leake Gerald , Baiocco Christopher , Harame David L.
Published: December 2024

A vertical-junction, carrier-depletion, micro-ring modulator is demonstrated with an extinction ratio around 30 dB, a modulation efficiency ~40 pm, and works with drive voltages as low as 0.5 V.
MEMS-based twisted bilayer flat optics for multidimensional optical modulation and hyperimaging
Authors: Tang Haoning , Lou Beicheng , Du Fan , Gao Guangqi , Zhang Mingjie , Ni Xueqi , Yacoby Amir , Cao Yuan , Fan Shanhui , Mazur Eric
Published: December 2024

Our MEMS-based twistoptics device enables precise control of interlayer gaps and twist angles in photonic crystals, achieving high-accuracy, multidimensional light manipulation with significant potential in reconfigurable nanophotonics.
Demonstration of scalable and programmable Gaussian gate operations on optical non-Gaussian states
Authors: Okuno Daichi , Yoshida Takato , Arita Ryoko , Kashiwazaki Takahiro , Umeki Takeshi , Miki Shigehito , China Fumihiro , Yabuno Masahiro , Terai Hirotaka , Takeda Shuntaro
Published: December 2024

We demonstrate a programmable and multi-step squeezing gate on an optical non-Gaussian state by using a loop-based optical circuit, which paves the way for universal large-scale quantum computing.
Coherent generation of decoherence-free states in nonlinear waveguide quantum electrodynamics
Authors: Karnieli Aviv , Tziperman Offek , Roques-Carmes Charles , Fan Shanhui
Published: December 2024

We show that emitter arrays coupled to nonlinear parametric-amplifier waveguides support a unique, coherent inter-atomic interaction. This allows for unitary adiabatic evolution and coherent generation of decoherence-free excited states in waveguide quantum electrodynamics.
Piezo-Optomechanically Tunable Ultra-Low-Loss Linear Programmable Processors for Quantum Computing and Networking at Visible Wavelengths
Authors: Mishra Mayank , Choi Gwangho , Talcott Gina M. , Gehl Michael , Leenheer Andrew , Dominguez Daniel , Otterstrom Nils T. , Eichenfield Matt
Published: December 2024

We present on design, optimization, fabrication and characterization of reconfigurable and modulatable ultra-low-loss photonic integrated circuits, using low-confinement waveguides and piezo-optomechanical modulation to achieve dB/m class losses and high electro-optic responsivity at visible wavelengths.
Ultrafast Spin Dynamics in Multi-Element Alloys Uncovered using Extreme Ultraviolet High Harmonic Probes
Authors: Grafov Anya , Ryan Sinéad A. , Johnsen Peter C. , Elhanoty Mohamed F. , Li Na , Eriksson Olle , Kapteyn Henry , Grånäs Oscar , Murnane Margaret
Published: December 2024

Ultrafast extreme ultraviolet light can probe light-induced spin dynamics in magnetic alloys with elemental specificity. We track spin transfer and spin reorientation dynamics of different elements to uncover the microscopic mechanisms underlying spin manipulation.
Photonic Crystal-Coupled Enhanced Steering Emission: A Prism-Free, Objective-Free and Metal-Free Lossless Technology for Biosensing
Authors: Bhaskar Seemesh , Liu Weinan , Tibbs Joseph , Cunningham Brian T.
Published: December 2024

This work presents the design, fabrication and application of one-dimensional photonic crystal grating interfaces to accomplish a cost-effective prism-free, metal-free, and objective-free platform for augmentation of fluorescence emission collection efficiency by engineering the guided mode resonance (GMR).
Fully Unsupervised Deep-Learning with Dimension Expansion for Nanophotonic Design
Authors: Huang Shuo , Torfeh Mahsa , Shi Yonggang , Hsu Chia Wei
Published: December 2024

We propose a fully unsupervised deep-learning approach using dimension expansion for nanophotonic design. The neural network generates binary broadband integrated Y-splitters with average efficiency 98% and splitting error 2%, without any pre-generated dataset.
Ultra Bright Silicon-on-insulator (SOI) Polarization Entangled Photon Source
Authors: Du Jinyi , Zhang Xingjian , Chowdhury Arya , Chen George F.R. , Gao Hongwei , Tan Dawn T. H. , Ling Alexander
Published: December 2024

Polarization-entangled photon sources on silicon chips are useful for scalable quantum computing. By employing novel low-loss fiber-chip couplers and optimizing the entire system, we developed an ultra-bright polarization-entangled photon source with > 97% (H/V) and > 94% (D/A) two photon interference visibility at 200,000 observed raw coincidence rate.
On-chip Quantum Interference of Transverse Modes with Inverse Designed Structures
Authors: Roque Jamika , Peace Daniel , White Simon , Polino Emanuele , Das Sayantan , Slussarenko Sergei , Tischler Nora , Romero Jacquiline
Published: December 2024

Transverse spatial modes have become an increasingly popular degree-of-freedom for encoding quantum information owing to the compact implementation when compared to others such as path. Here we present the demonstration of two photon Hong-Ou-Mandel interference between the different transverse modes in a multimode silicon photonic chip using a compact inverse designed beam splitter with up to 99.56 0.64% interference visibility. We achieve high visibilities across both multiple copies of ±the same design and among different designs. This work demonstrates the potential of inverse designed devices for quantum information processing with transverse spatial modes.
Dirac mass induced by optical gain and loss
Authors: Yu Letian , Xue Haoran , Guo Ruixiang , Chan Eng Aik , Terh Yun Yong , Soci Cesare , Zhang Baile , Chong Y. D.
Published: December 2024

We employ a synthetic photonic mesh lattice to simulate relativistic Dirac particles. We show how non-Hermiticity can be used to manipulate the particle mass terms in both spatial and temporal regimes.
Bridging the Gap: Towards Contextualised Optical Character Recognition using Large Language Models
Authors: Mudgal Ananya , Sharma Anshul , Malhotra Yugnanda
Published: December 2024

Optical Character Recognition is used to convert handwritten/printed text to digitised text, but it lacks refinement. We propose to integrate it with a Large Language Model, to create a context-driven word/sentence detection program.
Broadband plasmonic graphene-dielectric absorber for MIR
Authors: Mohamed Karim A. , Ghanim AbdelRhaman M. , A. Swillam Mohamed
Published: December 2024

The optical absorber plays a pivotal role in achieving effective energy harvesting. This study presents a fractal mid-IR absorber that utilizes a SiO2 geometry resonator with fractal technology to achieve a wideband cross-fractal formation. The proposed structure demonstrates broad absorption capabilities spanning a wide range of IR wavelengths.
Third Harmonic Generation at THz Frequencies: A Frequency-Selective Metasurface Approach with Complementary Split Ring Resonators
Authors: Sahu Mitali , Roy Chaudhuri Partha
Published: December 2024

We report here investigation on third harmonic generation (THG) in the terahertz (THz) regime using double resonant frequency selective metasurface composed of square shaped periodic complementary single split ring resonators.
Image Generation for Moina Classification using GAN-CNN and Digital Holography
Authors: Voochaiyaphum Bunyarit , Buranasiri Prathan , Yindeesuk Witoon
Published: December 2024

Moina are small aquatic organisms that cannot be differentiated by species with the naked eye. In this research, we employed the GAN-CNN technique to generate images of Moina from raw hologram data and to automatically classify the species. The experimental results demonstrate the effectiveness of the GAN-CNN technique for species classification.
Fabrication of High-aspect Ratio Biopolymeric Microneedles for Biomedical Applications
Authors: Rani Sweta , Das Rahul Kumar , Jaiswal Arun , Singh Gaurav Pratap , Sharma Akanksha , Saxena Sumit , Shukla Shobha
Published: December 2024

We report maskless fabrication of high-aspect ratio microneedles (MNs) in biopolymer-chitosan via femtosecond laser-assisted two-photon lithography and molding, enabling the fabrication of MNs up to 500 µm height while preserving its inherent chemical functionalities post-fabrication.
Diffractive and imaging properties of chiral Fresnel zone plates
Authors: Buaossa Nagi , Chatterjee Monish R
Published: December 2024

A magnetic, chiral Fresnel zone plate is introduced via an analytic and numerical methodology for examining its imaging and tuning properties including effects of transverse defocusing of superposed waves due to the multiple foci. Such defocusing and its minimization via tuning of parameters and zone radii.
Optical sensing of Arsenic by β- D-glucose functionalized Gold nanoparticles
Authors: Nadumane Sharmila Sajankila , Biswas Rajib , Mahato Krishna Kishore , Mazumder Nirmal
Published: December 2024

Glucose-functionalized gold nanoparticle sensor was synthesized for optical detection of Arsenic in water. The absorbance obtained from UV-vis spectroscopy was used in the quantification of Arseni in solution.
Ultracolor Multiplexing in QR Codes for Data Encryption and Transmission
Authors: Ignacio-Cerrato Sara , Pacios David , Rodríguez José Miguel Ezquerro , Vázquez-Poletti José Luis , Mariño María Estefanía Avilés , Stravakakis Konstantinos , Di Iorio Alessio , Cesarano Clemente , Schetakis Nikolaos
Published: December 2024

This paper introduces an innovative encryption method using ultracolor codification via the Prism Algorithm, which effectively encodes large data volumes into images with base64 encoding, demonstrating practical reliability and potential for secure data transmission.
Effect of Pump Intensity on the Bell Parameter of the Polarization-Entangled Source
Authors: Bisht Sohan Singh , Singh Hemant Kumar , Kanseri Bhaskar
Published: December 2024

We experimentally validate the effects of pump intensity and accidental coincidences on the Bell parameter (S) for a CW pumped polarization-entangled source, providing insights for effectively balancing these factors.
Probing the Influence of Heavy Metals on Protein Topology by Autofluorescence Spectroscopy
Authors: Thoshna  , Basha Shaik , Pithakumar Anjana , Devarakonda Shanmukha Sreeya , Mukunda Darshan Chikkanayakanahalli , Rodrigues Jackson , Chandra Subhash , K Ameera. , Biswas Shimul , Mahato Krishna Kishore
Published: December 2024

Heavy metals significantly impact the homeostasis of proteins. The current study investigates the influence of Zinc and Copper on protein structure alterations using autofluorescence spectroscopy. Further, modifications of proteins are validated by Thioflavin T assay.
Study of temperature-dependent optical properties of L-Arginine Phosphate-monohydrate (LAP) for efficient THz generation
Authors: Krishna R N Vamsi , Mondal Shyamal , Brahadeeswaran S. , Chaudhary Anil K
Published: December 2024

The paper reports temperature-dependent properties of aq-LAP crystal. The Refractive Index with values lying between 1.5-2.2 and the Figure of Merit lies between 0.065-0.275 as a function of frequency (0.3-2.7 THz) between 30°C and 70°C.
Terahertz Photocurrent Response from Ultrafast Optically Excited Atomically Thin WS2
Authors: Dhakar Neetesh , Kumar Brijesh , Kumar Sunil
Published: December 2024

Femtosecond laser-induced ultrafast photocurrent mediated THz emission from atomically thin WS2 layers is presented here. The excitation-fluence, azimuth angle, and pump polarization dependent measurements elucidate the role of different microscopic mechanisms in the THz generation.
Concurrence Modulation and Direct Detection Free-space Optical Communication Systems under General Stokes Detection Noise
Authors: Dai Weijie , Liu Xiaoqian , Su Xiaofeng , Guan Xun , Song Jian , Dong Yuhan
Published: December 2024

We summarize and extend concurrence modulation and direct detection free-space optical communication systems under general Stokes detection noise, and provide results constrained by natural environments to examine the roles of moderate turbulence and Stokes receivers.
Probing the Peroxynitrite-Induced Nitration of Proteins by Autofluorescence and FTIR Spectroscopy
Authors: Devarakonda Shanmukha Sreeya , Basha Shaik , Pithakumar Anjana , Thoshna  , Mukunda Darshan Chikkanayakanahalli , Rodrigues Jackson , Joshi Vijay Kumar , Chandra Subhash , Ameera.K  , Biswas Shimul , Mahato Krishna Kishore
Published: December 2024

Protein tyrosine nitration can cause alterations in protein structure and function, which can impact cell homeostasis. The current study investigates the structural alterations of proteins induced by Peroxynitrite in vitro using autofluorescence and FTIR spectroscopy.
Comparative Sizing of Silver and Gold Nanoparticles: Analysis with Microcontroller-Assisted Setup
Authors: Daimari Nikhil Kumar , Das Upama , Bhattacharyya Protyasa Proyasi , Biswas Rajib
Published: December 2024

The present study employs an intensity interrogation based Arduino aided setup for estimation of relative size distribution of nanoparticles (silver and gold).
Classifying the Thermal Effect of Two UV-Laser Types Used For Corneal Ablation via a Convolutional Neural Network
Authors: Heikal Fatma Nagah , Hamdy Omnia , Abdelhalim Ibrahim , El-Azab Jala , Ismail Tawfik
Published: December 2024

This paper investigates the thermal effects of excimer and Nd:YAG lasers on ex vivo rabbit corneas. Thermal images were obtained and utilized to classify laser ablation using a CNN constructed with Python
Graphene-based Tunable MD and MQD Enhanced Scattering Plasmonic Metasurface
Authors: Roy Shuvajit , Rani Sweta
Published: December 2024

A tunable graphene-based plasmonic metasurface is proposed. It suppresses electric dipole (ED) scattering at resonance, enhancing magnetic dipole (MD) and magnetic quadrupole (MQD) scattering. It can be tuned by the chemical potential of the graphene.
Measurement of the Temperature Coefficient of the Refractive Index for Silicon Nitride Thin Film in the Visible Range
Authors: Idres Samer , Hashemi Hossein
Published: December 2024

We experimentally measure the temperature dependence of the refractive index for 400 nm thick LP-CVD Silicon Nitride layer in the visible range, finding a refractive index of ~2.03 and a temperature coefficient of ~-1.3×10⁻4.
A long-Range Fluorescence-Based Optical Detector for Oil Spills
Authors: Poutoa Faith , Anderson Matthew E. , Pullman David , Ryan Kayla , Smith Valiant , Keyashian Arash , McLintock Alex , Alany Waleed , Turchiano Chris , Van Bibber Steve , Winther Christian , Laugle Greg , Chase Chris
Published: December 2024

We report on the optical design, construction, and implementation of a UV-fluorescence based illumination and detection system capable of detecting crude and refined oils from a distance of 60 meters.
Electron Beam Profiling Using Coherent Atomic Magnetometry
Authors: DeStefano Nicolas , Averett Todd , Zhang Shukui , Camsonne Alexandre , Ramaswamy Aneesh , Malinovskaya Svetlana , Novikova Irina , Mikhailov Eugeniy , Aubin Seth
Published: December 2024

We image 2-D electron beam profiles through localized measurements of its magnetic field using nonlinear magneto-optical polarization rotation in hot Rb vapor.
Low Thermal Noise TiO2:GeO2 and SiO2 High Reflector Stacks for Gravitational Wave Detectors
Authors: Davenport Aaron , Vajente Gabriele , Demos Nicholas , Billingsley GariLynn , Markosyan Ashot , Bassiri Riccardo , Fejer Martin M. , Gras Slawek , Evans Mathew , Menoni Carmen S.
Published: December 2024

Multilayer TiO2:GeO2 alloy and SiO2 coating stacks with >99.999% reflectivity and reduced thermal noise with excellent optical properties are demonstrated. The effect of stepped annealing on the structural properties of the coatings is studied.
Fabrication of Fluorescent Micro/Nanostructures via Two-Photon Lithography using Carbon-Based Photoinitiator
Authors: Sharma Akanksha , Rani Sweta , Suryawanshi Tejas , Jaiswal Arun , Saxena Sumit , Shukla Shobha
Published: December 2024

We report a two-photon lithography-based fabrication of fluorescent nanostructures using carbon quantum dots incorporated in a photosensitive resin. These fluorescent micro/nanostructures serve as a platform for various applications where optically emissive structures are required.
Stable dual-comb interferometry without locking of repetition frequencies
Authors: Shibata Riku , Fujii Shun , Watanabe Shinichi
Published: December 2024

We found that optimal mode number conditions in two frequency combs enable stable dual-comb interferometry without locking their repetition frequencies, facilitating measurements in fluctuating environments. The interferogram peak position remains stable regardless of repetition-frequency locking.
For passive radiative cooling, we recommend broadband thermal emitters vs. narrowband ones
Authors: Jin Yeonghoon , Kats Mikhail
Published: December 2024

We find that an experimentally realizable broadband emitter with high emissivity across 3–25 µm is usually more effective as a radiative cooler than a selective emitter with high emissivity only at 8–13 µm.
Topographical Characterization System Using Fiber-based Interferometers’ Combination
Authors: Maurya Arvind Kumar , Chatterjee Kalipada , Jha Rajan
Published: December 2024

We present a topographical characterization system for surfaces analysis utilizing fiber-based cavity interferometers’ system. It provides a broad range of displacement sensing by achieving high-resolution and precise measurements, essential for material analysis and nanotechnology applications.
Demonstration of a Single-pixel Imaging System for a Uniformly Moving Target with a Static Illumination
Authors: Yoshiki Wataru , Imaki Masaharu , Kotake Nobuki
Published: December 2024

We demonstrate a system for single-pixel imaging of a uniformly moving macroscopic target with a static illumination pattern. The system equips a static illumination pattern mask that is low-cost and applicable to wide wavelength.
U-Shape Lossy Mode Resonance Optical Fiber Sensor for Temperature Detection of Lithium-Ion Batteries
Authors: Alcock Keith M. , Goh Keng , Beg Mustehsan , Melendi-Espina Sonia , Hernaez Miguel
Published: December 2024

This study develops a Polyethylenimine/Graphene Oxide thin film-based Lossy Mode Resonance U-shaped optical fiber sensor for lithium-ion battery temperature measurement. The study encourages further development of this device further as it compares well to thermocouples.