bluuebunny/crossref_metadata_2025 huggingface dataset:
IT’S THE PROPERTY, STUPID! BUT HOW CAN WE GET RID OF IT?
Authors: Ferreira Alvaro
Published: September 2024

The purpose of our research is to identify paths that lead us beyond property. It is important to us to do more than criticize private property; it is also necessary to think beyond public property. We would like to reach something that goes beyond both. We are not referring either to the private property of capitalism or to the public property of socialism; we refer to the idea of the common in communism.The understanding of the common requires that we envision a society different from capitalist society. The common is not a third option to the private and the public (and is not equivalent to the latter), but a path antagonistic to capital and its means of production. It is necessary to keep in mind that the ‘realization’ of the common through state property constitutes the very destruction of the common by the state. The notion of property, in and of itself, excludes the common, not only in terms of the use of goods, but also in the realm of production, given that it ratifies a division between owners and non-owners.The defense of the common carries with it the denial of property, whether it is public or private. This perspective is of real importance, because the institution of private property is the basis for the support of capitalism. Unlike what it may appear as, public property is not a denial of private property, but a collective form of use of private property.
ÍNDICES DE PRESSÃO HIDROLÓGICA E CENÁRIOS HIPOTÉTICOS EM BACIAS HIDROGRÁFICAS URBANAS
Authors: Santos Rodrigo Lima , Nunes Fabrizia Gioppo , Santos Alex Mota dos , Silva Carlos Fabricio Assunção da
Published: September 2024

Os estudos sobre drenagem urbana são relevantes no Brasil e no mundo. Como efeito, destacam-se pesquisas que aplicam modelos hidrológicos de abordagem preditiva. Tais iniciativas ganham força devido aos cenários de ocupação das bacias hidrográficas e de suas perturbações na dinâmica hidrológica de superfície. No âmbito da modelagem preditiva, esta pesquisa tem como objetivo avaliar os impactos da expansão urbana, em três microbacias da Região Metropolitana de Goiânia (RMG), mediante a elaboração de um Índice de Pressão Hidrológica (IPH). Os procedimentos metodológicos envolveram a associação entre dois modelos, um de projeção de crescimento da área urbana, e o outro, da previsão de geração de escoamentos superficiais. Os dados para as projeções de crescimento urbano foram manipulados no software Dinâmica EGO, pela abordagem do autômato celular. As variáveis que representam a dinâmica das águas de superfície foram avaliadas via álgebra de mapas em um Sistema de Informação Geográfica (SIG). Os resultados demonstraram que a aplicação dos dois modelos conjugados permitiu estabelecer de forma menos subjetiva, a relação do crescimento da malha urbana e suas alterações na dinâmica hidrológica, tanto em uma perspectiva histórica como de cenários hipotéticos. Além disso, dos cenários hipotéticos, pôde-se observar que à medida que se ampliam as áreas urbanas, eleva-se o fluxo do escoamento superficial e, portanto, do IPH.
PARQUES URBANOS E ILHAS DE FRESCOR
Authors: Ferreira Lima Júnior Antonio , Ribeiro Isabel , Humberto Amorim Jorge
Published: September 2024

A implementação e manutenção de parque urbanos constituem-se como ferramentas de gestão pública, promovendo a mitigação de efeitos adversos da temperatura, através dessas estruturas verdes, considerados pela literatura como Ilhas de Frescor. O município de Fortaleza vem crescendo em um ritmo acelerado, tendo como principal consequência a modificação dos atributos de cobertura e uso do sítio urbano, promovendo o fenômeno da Ilha de Calor. Para analisar a influência do Parque do Cocó como Ilha de Frescor em Fortaleza, foi realizada campanha de coleta de dados em períodos representativos (seco e chuvoso), onde foram avaliadas as condições térmicas e higrométricas do parque em relação a outros pontos com diferentes tipologias de ocupação, fazendo a análise do campo térmico e do Índice de Desconforto Térmico (IDT). O Parque do Cocó desempenha um papel crucial para mitigar os efeitos térmicos de Fortaleza. A área verde destacou-se ao registrar as temperaturas mais baixas e os níveis mais elevados de umidade relativa do ar, especialmente durante as tardes, chegando a ser até 6,7°C mais fresca em comparação com outras áreas urbanas. O parque também alcançou os melhores indicadores de IDT, sendo a área de maior conforto na cidade.
INDUSTRIALIZAÇÃO E TRANSFORMAÇÕES NA MALHA URBANA DE BLUMENAU – SC
Authors: Kormann Tanice Cristina
Published: September 2024

O presente artigo objetiva analisar a industrialização como vetor de crescimento urbano de Blumenau. A partir da discussão do contexto social, econômico e político em que ocorre este desenvolvimento industrial, busca-se abordar os reflexos espaciais deste processo ao longo do século XX. Por meio de uma abordagem espaço-temporal, os procedimentos metodológicos envolveram o uso da cartografia histórica permitindo indicar os principais eixos de expansão da malha urbana em quatro décadas. O uso de métodos mistos possibilitou a integração de dados quantitativos e qualitativos, permitindo indicar percentuais de expansão da malha urbana e seus principais fatores motivadores. Desta forma, os resultados indicam relação direta entre a localização das principais indústrias e as moradias, muitas delas situadas nas encostas íngremes no seu entorno, configurando áreas de risco. Trata-se de um tema latente revelando desafios para a construção de uma cidade resiliente, capaz de enfrentar o cenário das mudanças climáticas deste século XXI.
EM BUSCA DO URBANO, DOIS SÉCULOS ATRÁS
Authors: De Campos Andrade Lamparelli Julio
Published: September 2024

Neste artigo pretendemos sugerir alguns pontos fundamentais de intersecção entre a gênese do pensamento marxista e os problemas relativos à urbanização, especialmente no que diz respeito ao problema da propriedade capitalista da terra. Pretende-se, ao fim, chamar atenção para a natureza constitutiva da “renda imobiliária” e o papel que ela representa no interior da teoria crítica de Marx.
PROPRIEDADE URBANA, ALUGUEL E RENDA IMOBILIÁRIA.
Authors: Pereira Paulo Cesar Xavier , Hidalgo Dattwiler Rodrigo , Cevallos Serrano Luis Andrés , Nuñez Ana
Published: September 2024

Karl Marx formulou a crítica da teoria do valor-trabalho e, particularmente, a da moderna propriedade privada da terra, que constitui uma forma histórica específica da propriedade. Esta vem sendo reconstituída pelo capital na consideração de que o monopólio da propriedade da terra envolve dois aspectos: o que dá ao proprietário o direito de explorar e de extrair os elementos naturais da terra e aquele que dá o direito do proprietário de dispor de uma parcela do Planeta para seu uso exclusivo. Em O capital, na Seção Sexta, em uma dezena de capítulos foi analisada a renda da terra na agricultura e apenas em um deles foram expostas indicações de como entender a renda dos terrenos na construção, nas minas e o preço da terra.  Daí que se apresenta o desafio, teórico e histórico, de como a partir desses apontamentos avançar a compreensão das desigualdades na urbanização contemporânea. E, de como superar as formas rentistas de produção e uso da cidade, cujo resultado é a superexploração e a degradação do metabolismo urbano. A pergunta central do Dossiê foi: como a propriedade, o aluguel e a renda da terra afetam o habitar urbano? Os trabalhos apresentados analisaram diferentes momentos: o da colonização, o da urbanização, o da industrialização ou o da financeirização. A preocupação do Dossiê foi ampliar a crítica da Economia Política na perspectiva da produção social do espaço urbano na América Latina.
Unravelling elder abuse through a human rights lens: a case study
Authors: Duffy Anita , Connolly Michael , Browne Freda
Published: September 2024

This article examines the connection between human rights and elder abuse, employing a human rights-based approach. Through a critical examination of a fictional case study on elder abuse, the discussion highlights the vital role of nurses when safeguarding the rights of older individuals in residential care settings. The PANEL framework – encompassing Participation, Accountability, Non-discrimination, Empowerment and Legality – is a comprehensive guide for safeguarding practice and is applied to the example provided. By applying this human rights-based approach, nurses can proactively address elder abuse, ensuring individuals' rights are protected, promoted and supported. Through accountability measures, non-discriminatory practices, empowerment strategies and adherence to legal standards, the authors advocate for a holistic approach to enhance the quality of care and foster a safe environment for older adults.
Survivor to thriver: identifying and overcoming the psychological effects of a stoma
Authors: McGrogan Marie , Proctor Chris
Published: September 2024

Stoma-forming surgery can have extensive, negative impacts on a patient's psychological wellbeing. Although this has been known for several decades, little progress has been made in addressing the issue. Several areas of concern have been repeatedly identified in the literature: loss of control; reduced self-esteem; psychosexual issues; and the impact of enhanced recovery on psychological outcomes. While these issues have the potential to significantly affect patients undergoing stoma-forming surgery, they can be mitigated against. While identifying and addressing psychological morbidity at an early stage is the most effective approach, additional interventions can also be useful. The promotion of self-care and independence can minimise the feeling of loss of control, the selection of discreet, leak-proof products can help address self-esteem issues, and open, honest conversation can significantly improve a patient's feelings regarding sexuality and intimacy.
Latent Profile Analysis of Pressure Injury Knowledge Levels Among Nursing Staff in Tertiary General Hospitals
Authors: Zhang Li , Hu Shu-Nan , Yan Xu-Mei , Zhang Yan , Wei Shen , Han Ye-Fen
Published: September 2024

Aims/Background The prevalence of pressure injuries (PIs) is a widely used clinical indicator of patient safety and quality of care. Nurses' understanding of pressure injury (PI) can significantly impact the treatment outcomes for patients. This study, based on latent profile analysis (LPA), reveals the characteristics associated with PI knowledge levels among clinical nurses in district and county tertiary medical institutions. We aim to help nursing managers formulate training plans accurately so that clinical nurses can provide high-level skin care services for patients.

Method In June 2023, 1482 nurse staff from 4 tertiary general hospitals at the district and county level in Chengdu were chosen as research subjects using the convenience sampling method. Responses to the general information questionnaire, the Chinese Version of Pressure Ulcer Knowledge Assessment Tool (C-PUKAT), and the Chinese Version of Attitude towards Pressure ulcer Prevention (C-APuP) were used to compare the population's characteristics based on LPA.

Results Three latent profiles of nurses’ PI knowledge were identified: weak foundation type (46.3%), strengthening foundation type (42.7%), and special improvement type (11.0%). Subjects’ departments, administrative positions, highest degrees and PI prevention attitude scores, as well as whether they have participated in the training, all differed significantly between latent profile groups (p < 0.05).

Conclusion The PI knowledge level of nursing staff at the district and county tertiary general hospitals requires urgent improvement. Nursing managers should prioritize the management level and quality of PI training among clinical nursing staff. Precise training programs can be developed based on different categories of nursing staff to enhance their PI knowledge, thereby effectively improving the quality of healthcare for inpatients.
Pulmonary alveolar proteinosis: presentation, diagnostic challenges, and management
Authors: Johnston Janet Marie , Ortega Pilar Rivera , Greaves Melanie , Montero Angeles , Bright-Thomas Rowland
Published: September 2024

Pulmonary alveolar proteinosis is a rare diffuse lung disease; diagnosis and treatment of which is often delayed. We present the case study of a 43-year-old male with a six-month history of worsening breathlessness and non-productive cough referred for specialist respiratory input. Rapid investigations, including high-resolution computed tomography (HRCT) and bronchoalveolar lavage, confirmed the diagnosis of pulmonary alveolar proteinosis. Treatment with whole lung lavage significantly improved pulmonary function and quality of life. We discuss the diagnosis and management of this condition and highlight the importance of early recognition and multidisciplinary teamwork in managing pulmonary alveolar proteinosis.
Prescribing in critical care
Authors: Robertson Deborah
Published: September 2024

Deborah Robertson provides an overview of recently published articles that may be of interest to non-medical prescribers. Should you wish to look at any of the papers in more detail, a full reference is provided
Exploring enablers and barriers to pharmacists becoming designated prescribing practitioners
Authors: Uppal Zena , Jones Shelley , Fernandes Roger
Published: September 2024

The introduction of the Initial Education and Training Standards for Pharmacists reforms outlined that trainee pharmacists will be able to qualify as independent prescribers (IPs) on registration from 2026. To enable this transformation, sufficient numbers of designated prescribing practitioners (DPPs) are required to supervise the IP element of their training. A regional survey identified 12 DPPs, which highlights a potential workforce challenge. This study expanded on the findings of the survey, aiming to explore the experiences of DPPs to understand how to increase capacity and inform the next steps towards implementing the reforms. In a descriptive, qualitative study, a series of two focus groups were conducted with DPPs and a chief pharmacist. Training and funding of DPPs was reported as the key enabler to increasing capacity whilst time constraints was the most significant barrier. Cross-sector supervision was considered possible provided there was time and funding. NHS England Workforce, Transformation and Education Directorate (NHSE WT&E) are a national organisation leading on this work stream and should consider targeting some of the immediate enablers (training and funding) and barriers (time) as identified from this study to increase DPP capacity in preparation for 2026. NHSE WT&E should consider developing plans to address other important themes identified such as whether DPPs can provide supervision cross-sector supervision as well as funding showing that the themes identified do not exist in isolation but intricately linked to one another.
A web-based decision support system to support occupational therapy services in promoting active ageing
Authors:   Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai Province, Thailand., Putthinoi Supawadee , Hsu Hsiu-Yun ,   Department of Occupational Therapy, National Cheng Kung University, Taiwan, Kuo Li-Chieh ,   Department of Occupational Therapy, National Cheng Kung University, Taiwan, Chaimaha Napalai ,   Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Lersilp Suchitporn ,   Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai Province, Thailand., Punyakaew Autchariya ,   Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University
Published: September 2024

Background: Dealing with the consequences of Thailand’s ageing population is a significant challenge. The growing usage of Information and Communication Technology (ICT) has the potential to support healthy and active ageing. Objective: This study aimed to develop a web-based Decision Support System (DSS) and evaluate its usability. Materials and methods: Research and Development (R&D) was a study design. It was divided into two phases: the development of the web-based DSS and its usability. Results: The web-based DSS was designed under the requirements of the users and comprised seven components: 1) the login page; 2) the main page; 3) the register page; 4) active ageing measurement; 5) decision-making for older people; 6) the Occupational Therapy (OT) recommendations system; and 7) exporting information. A System Usability Score (SUS) of 80.41 in the usability test showed that the web-based DSS was very user-friendly and had excellent efficacy, efficiency, and satisfaction. Conclusion: The web-based DSS effectively enhanced ageing for older people.
DOCÊNCIA, HISTÓRIA E QUESTÕES DE GÊNERO
Authors: Martins Lopes Luis Fernando , Da Silva Cunha Nogueira Ione , Rodrigues Silvia Adriana
Published: September 2024

No presente artigo apresentamos uma contextualização sobre o percurso histórico da profissão docente no Brasil e sua variação entre gêneros. Trata-se de uma profissão inicialmente masculina, até porque tem início em uma época em que as mulheres não tinham a possibilidade de exercer nenhuma profissão ou ter um ofício; e, no decorrer do tempo, se tornou feminina, em especial nos espaços da Educação Infantil e nos anos iniciais do Ensino Fundamental. Os dados trazidos foram obtidos via revisão bibliográfica, para explorar nessa retrospectiva o que fomentou a mudança no perfil de gênero dos profissionais da educação. Espera-se que por intermédio deste artigo possamos ressaltar a importância de discussões que desvendem as mais diversas formas de construção da identidade docente levando em consideração contextos histórico e social, independente de raça, gênero, classe e/ou religião.
Co-creating a climate comic book: reflections on using comics in intergenerational research and engagement
Authors: Thomas Merryn , Sorvala Laura , Williams Aelwyn , Singleton Aled , Maddock Carol , Morgan Deborah , Murray Tavi , Musselwhite Charles
Published: September 2024

The places where people live, work and spend leisure time are essential to their health and wellbeing. However, with climate change, these environments are changing. It is paramount that we understand older and younger people’s climate change perspectives, behaviours and visions for the future so that the places that matter to them can be shaped and managed effectively for health, wellbeing and sustainability.

This article presents the case for using comic books to explore climate change with diverse intergenerational groups. The bilingual (Welsh/English) Climate Comic was created in South Wales, UK, as part of the ‘Understanding Older and Younger People’s PerspecTives and Imaginaries of Climate Change’ (OPTIC) project. From February to May 2023, 65 older and younger people took part in structured workshops where we used creative methods (games, collaging, comic creation, mobile and online interviews, storyboarding) to elicit intergenerational conversation, articulate intangible values and explore change. Workshops were audio-recorded, and stories were developed into a comic by illustrator Laura Sorvala. We also used comics as part of wider engagement and to stimulate ideas in a design sprint with interested groups.

We discuss why comics are suited to exploring climate change with older and younger people, and the process we used to create the Climate Comic. We then reflect on the affordances and limitations of our approach and make recommendations for future research in this area. We hope that this work will stimulate others to consider using this adaptable and engaging art form for further research and engagement with younger and older people.
3D Holographic Display without Speckle and Zeroth-order Light Using Mobile Phone Screen
Authors: Shigematsu Otoya , Naruse Makoto , Horisaki Ryoichi
Published: September 2024

We propose a method of computer-generated holography using a screen device. Holograms are synthesized by solving an inverse problem of incoherent light propagation. This method realizes a compact holographic display without speckle and zeroth-order light.
Mitigating Efficiency and Image Quality Tradeoffs in AR Waveguide Displays
Authors: Goodsell Jeremy , Nikolov Daniel K. , Vamivakas A. Nick. , Rolland Jannick P.
Published: September 2024

Diffractive waveguide displays have low optical efficiency from multiple in-coupler interactions. Single-zone designs trade efficiency for image quality, but we demonstrate how a multi-zone in-coupler mitigates this tradeoff.
Investigating the efficacy of deep learning networks for 3D imaging and processing
Authors: Muniraj Inbarasan
Published: September 2024

Artificial intelligence techniques, such as machine learning (ML) and deep learning (DL), are now widely used in various vision-based applications. Here, we summarize some of the most recent advances in Computational Integral Imaging using DL networks.
Simulation of Overlapped FBG sensors in a sensor network for strain measurement
Authors: Venkatesan Sugumar , Ponnusamy Subashini , Venugopal Kathirvel , Chelliah Pandian
Published: September 2024

FBGs with overlapped spectra in a series network are interrogated with spectral division multiplexing (SPDM) for strain measurement. SPDM converts the wavelength interrogation into a non-linear regression curve-fitting problem. Neural networks are employed to solve this.
Exploiting Meta AI's object segmentation model on distributed acoustic sensing data for spatio-temporal train localization
Authors: Hamadi Abdelkader , Garbini Gabriel Papaiz , Hammi Tarik , Kabalan Ali , Ho Annie , Yahia Katia Amer , Tilleli Ayad , Ruffel Martin , Benamara Imen , Talaboulma Walid , Lacaze Pierre-Antoine
Published: September 2024

Train tracking is an essential need for railway companies. Indeed, monitoring train movements is crucial for safety and traffic management issues. Although train tracking solutions already exist, they are still expensive and have some limitations. The French railway company (SNCF) is investing efforts to exploit emerging state-of-the-art results to develop its own train tracking solution. We present in this article an approach that exploits “Meta’s Segment Anything model” for spatio-temporal train localization on data sensed by a distributed acoustic sensing (DAS) system. We tested our approach on a traffic platform situated in Paris. While we achieved promising results, we also identified certain limitations to this solution.
Single-shot phase and polarimetric microscopy
Authors: Blochet Baptiste , Guillon Marc
Published: September 2024

We introduce a polarimetric wavefront imager that provides both the phase and the full-Stokes polarimetric images at high resolution in a single acquisition of a multiplexed image
Spectral reconstruction for a heterogenous structure static modulation Fourier transform spectrometer
Authors: Cho Ju Yong , Jang Won Kweon
Published: September 2024

Spectral reconstruction was performed for a heterogeneous structure static modulation Fourier transform spectrometer. This design is analyzed and discussed, enabling the spectrometer to have high performance across wide spectral range.
Multiplexed Multispectral Filter Array by 3D Sphere Packing Design
Authors: Alvarado Alejandro , Díaz Nelson , Meza Pablo , Vera Esteban
Published: September 2024

We extended the 3D-Sphere Packing to design a Multiplexed Multispectral Filter Array that increases the measurement signal-to-noise ratio and allows an increase in the of number bands, approaching the resolutions expected for hyperspectral imaging systems.
Design of Biomimetic Optical Sensor for Underwater Fluid Velocity Measurement
Authors: Seo Dongmin , Oh Sangwoo , Han Seungoh
Published: September 2024

To develop an optical sensor that mimics the neuromast, a sensory organ in the fish used to detect movement, vibration and pressure gradient, we propose a design of a pillar, a sensor structure with robust properties in the underwater, and present conditions and analysis results for simulating the displacement of the pillar in the flow field.
Design of a Loop-Terminated Plasmonic Mach-Zehnder Modulator on Silicon Nitride-Loaded Thin Film Lithium Niobate on Insulator
Authors: Tanyi Gregory , Hoehn Karsten
Published: September 2024

We present the design and simulation of a loop terminated Mach-Zehnder plasmonic modulator, implemented on a silicon nitride-loaded thin film lithium niobate on insulator platform. This device features a low peak-to-peak driving voltage of 1.2V and a compact size of 60µm by 42µm. The reduction in drive voltage is achieved through the subwavelength confinement within the plasmonic slot, in conjunction with the looped Mach-Zehnder modulator design. The modulator is applicable in on-chip distributed acoustic sensing, where its ability for square pulse modulation is critical for enhancing sensing distance and spatial resolution. The integration of plasmonic technologies with thin-film lithium niobate offers a promising approach for on-chip optical metrology.
Compressive Fourier Domain Optical Coherence Tomography
Authors: August Isaac Y , Svetlitski Yacov , Stern Adrian
Published: September 2024

In this work we present a new method for designing a Fourier domain optical coherence tomography (FD-OCT) based on replacing the diffraction grating-based spectrometer with a compressive sensing (CS) spectrometer. A simulation of compressive FD-OCT that is based on liquid crystal (LC) cell modulator for sensing the spectral distribution was made. The spectral power distribution is indirectly measured and reconstructed following a CS approach. This method provides numerous benefits such as reduction of acquisition time, reduction of system size and complexity, reduction of system costs and reduction of power loss.
3D visualization of plant-pathogen interaction inside plant leaves with dynamic contrast optical coherence tomography
Authors: de Wit Jos , Tonn Sebastian , Shao Mon-Ray , Van den Ackerveken Guido , Kalkman Jeroen
Published: September 2024

Optical coherence tomography (OCT) can image deep inside scattering plant tissue with micrometer resolution. However, conventional OCT lacks specificity to distinguish plant tissue from pathogen tissue. Here we show how dynamic OCT (dOCT) creates functional contrast of Bremia, a downy mildew in lettuce, based on sub-resolution dynamic activity inside the tissue. We demonstrate its applicability for disease resistance quantification and longitudinal study of pathogen growth.
SLODAR System Development for Atmospheric Profiling at Geochang SLR Observatory in South Korea
Authors: Joo J. Y. , Kim S. H. , Ha H. S. , Han S. G. , Lee J. H. , Butterley T.
Published: September 2024

We developed a SLODAR system at Geochang Observatory, South Korea, for atmospheric measurements to enhance adaptive optics. It uses wavefront sensors for atmosphere profiling, showing similar conditions to other Korean observatories.
Rapid angular ellipsometry method using spatial polarization modulation and detection
Authors: Zhao Wenxiu , Wang Xiaocheng , Zhong Qianglong
Published: September 2024

Owing to its nanometer accuracy and noninvasive properties, ellipsometry has an important role in the film thickness measurement and optical critical dimension (OCD) method for measuring gratings and semiconductor devices with periodic structures. Currently, commercial ellipsometers frequently take ∼10s to complete a measurement owing to the necessity for mechanically rotating polarized elements, which limits its efficiency. In this paper, we propose a new, to the best of our knowledge, ellipsometry setup that combines a vortex waveplate and a polarized camera to achieve polarization modulation and detection spatially. The measuring speed of the proposed system is determined by the frame rate of the polarized camera. A sample can be rotated to acquire its angular Mueller matrix within 3 s. The theoretical principle is described in this paper. The proposed system was calibrated, and a maximum error of 0.6% was observed when measuring the Mueller matrix of different samples. This proposed method is a simple and rapid method for measuring angular Mueller matrices and will further increase the efficiency of OCD methods and other ellipsometry applications.
End-to-end color fringe depth estimation based on a three-branch U-net network
Authors: Zhu Xinjun , Lan Tianyang , Zhao Yixin , Wang Hongyi , Song Limei
Published: September 2024

In fringe projection profilometry (FPP), end-to-end depth estimation from fringe patterns for FPP attracts more and more attention from fringe patterns. However, color images provide additional information from the RGB channel for FPP, which has been paid little attention in depth estimation. To this end, in this paper we present for the first time, to the best of our knowledge, an end-to-end network for depth estimation using color composite fringes with better performance. In order to take advantage of the color fringe pattern, a multi-branch structure is designed in this paper, which learns the multi-channel details of the object under test by using three encoders for each RGB channel and introduces an attention module to better capture the complex features and modalities information in the input data. Experiments from simulated and real datasets show that the proposed method with color fringe pattern is effective for depth estimation, and it outperforms other deep learning methods such as UNet, R2Unet, PCTNet, and DNCNN.
Piezoelectric actuation for integrated photonics
Authors: Tian Hao , Liu Junqiu , Attanasio Alaina , Siddharth Anat , Blésin Terence , Ning Wang Rui , Voloshin Andrey , Lihachev Grigory , Riemensberger Johann , Kenning Scott E. , Tian Yu , Han Chang Tzu , Bancora Andrea , Snigirev Viacheslav , Shadymov Vladimir , Kippenberg Tobias J. , Bhave Sunil A.
Published: September 2024

Recent decades have seen significant advancements in integrated
photonics, driven by improvements in nanofabrication technology. This
field has been developed from integrated semiconductor lasers and
low-loss waveguides to optical modulators, enabling the creation of
sophisticated optical systems on a chip-scale capable of performing
complex functions such as optical sensing, signal processing, and
metrology. The tight confinement of optical modes in photonic
waveguides further enhances the optical nonlinearity, leading to a
variety of nonlinear optical phenomena such as optical frequency
combs, second-harmonic generation, and supercontinuum generation.
Active tuning of photonic circuits not only is crucial for offsetting
variations caused by fabrication in large-scale integration but also
serves as a fundamental component in programmable photonic circuits.
Piezoelectric actuation in photonic devices offers a low-power,
high-speed solution and is essential in the design of future photonic
circuits due to its compatibility with materials such as Si and
Si3N4, which do not exhibit electro-optic
effects. Here, we provide a detailed review of the latest developments
in piezoelectric tuning and modulation by examining various
piezoelectric materials, actuator designs tailored to specific
applications, and the capabilities and limitations of current
technologies. In addition, we explore the extensive applications
enabled by piezoelectric actuators, including tunable lasers,
frequency combs, quantum transducers, and optical isolators. These
innovative ways of managing photon propagation and frequency on-chip
are expected to be highly sought after in the future advancements of
advanced photonic chips for both classical and quantum optical
information processing and computing.
All-numerical optimization of deformable mirrors
Authors: Goy Matthias , Böttner Paul , Heinig Daniel , de Dios Pedro
Published: September 2024

The growing market of space-borne telescopes requires adaptive optical correctors to compensate for system aberrations. This work will provide a method for an all-numerical approach of optimizing deformable mirrors for this application.
Simple Tunable Laser Written Liquid Crystal Based Aberration Correctors
Authors: Xu Alec , Nourshargh Camron , Salter Patrick S. , Elston Steve J. , Morris Stephen M. , Booth Martin J.
Published: September 2024

Novel devices created using direct laser-written polymerization in liquid crystals correct Zernike or other modes with continuous tunability. We demonstrate several modal devices offering a low cost, simple alternative to traditional adaptive optics correctors.
Reconstructionless autofocus method for Hadamard-based single-pixel microscopy.
Authors: Tobón-Maya Heberley , Zapata-Valencia Samuel I. , Willstatter Lindsey , Bonora Stefano , Farina Andrea , Lancis Jesús , Tajahuerce Enrique
Published: September 2024

An autofocus method for Hadamard-based single-pixel microscopy without image retrieving is presented. An iterative gradient descent algorithm finds the focusing plane by analyzing the intensity obtained by projecting a reduced number of Hadamard patterns.
Using Image Sharpness Metrics to Improve and Monitor AOSLO Performance
Authors: Lawton Penny F. , Young Laura K.
Published: September 2024

We describe the use of image sharpness metrics to give a measure of image quality and system performance in the Adaptive Optics Scanning Laser Ophthalmoscope; a system designed to image cells in the retina at high resolution.
Information-Theoretic Experimental Analysis of Lensless Imagers
Authors: Kabuli Leyla A. , Hung Clara Shang , Markley Eric , Pinkard Henry , Waller Laura
Published: September 2024

We analyze the information content of experimental data from lensless cameras with different phase mask encoders. We show that our mutual information metric predicts image reconstruction quality without performing a reconstruction.
Design and Fabrication of Self-Coded CMOS Image Sensor for Compact Omnidirectional Lensless Cameras
Authors: Hosokawa Fuki , Nakamura Tomoki , Kagawa Keiichiro , Sasagawa Kiyotaka , Ohta Jun , Nakamura Tomoya
Published: September 2024

We designed and fabricated a CMOS image sensor that works as a coding mask. Pinholes were formed in the image sensor by deep reactive ion etching. Image reproduction was performed by a Wiener filter.
Pseudo Random Illumination for Live Super-Resolution Microscopy
Authors: Labouesse Simon , Mangeat Thomas , Barbault Pierre , Allain Marc , Idier Jerome , Sentenac Anne
Published: September 2024

Random Illumination Microscopy (RIM) requires capturing around 200 fluorescence images with speckle illuminations. Implementing Pseudo-Random Illuminations reduces this number by a factor of 10, enabling robust real-time super-resolution imaging of biological specimens. Our study explore the trade-off between the robustness and speed in pseudo-RIM.
Self-supervised FLIM super-resolution using data fusion
Authors: Kapitany Valentin , Fatima Areeba , Zickus Vytautas , Whitelaw Jamie , McGhee Ewan , Insall Robert , Machesky Laura , Faccio Daniele
Published: September 2024

Traditional super-resolution methods often rely on extensive training sets, risking out-of-distribution hallucinations. We address this with SiSIFUS, using high-resolution intensity images to self-supervise the upsampling of fluorescence lifetime images, by factors up to 16x16.
Advancing Metrology via Multi-illumination Fourier Ptychographic Microscope
Authors: Kim Hyun-su , Sake Balaji , Schelkens Peter
Published: September 2024

Improving the metrology based on phase retrieval of complex amplitude through multi-illumination Fourier Ptychographic microscopy offers enhanced accuracy and efficiency in optical measurements and defect analysis, enriching the signal obtained from the sample.
Noise-robust latent vector reconstruction in ptychography using deep generative models
Authors: Seifert Jacob , Shao Yifeng , Mosk Allard P.
Published: September 2024

We introduce a novel approach for ptychographic reconstruction, integrating a pre-trained autoencoder within a reconstruction framework based on automatic differentiation. This enables noise-robust imaging and insight into optimization landscapes for applications with prior object knowledge.
Parallel single-pixel digital holography using the fractional Talbot effect
Authors: Ipus Erick , Martínez-León Lluis , Lancis Jesús , Tajahuerce Enrique
Published: September 2024

We propose a digital holography method combining parallel phase-shifting and single-pixel imaging techniques using the fractional Talbot effect. The sampling patterns are encoded using a DMD as amplitude spatial light modulator.
Information-Theoretic Design for High-Dimensional Computational Imaging
Authors: Markley Eric , Kabuli Leyla , Chien Tiffany , Pinkard Henry , Waller Laura
Published: September 2024

We present a technique for information-theoretic optimization of computational imaging systems demonstrated in snapshot 3D microscopy. By directly evaluating measurement quality and decoupling optimization from downstream decoders, computational cost is reduced relative to end-to-end design.
Non-contact Measurement of Intraocular Pressure (IOP) Via Corneal Deformation Induced by Natural Blinking
Authors: D’Alessandro Vito Ivano , Schumacher Justin , Attivissimo Filippo , Isaiah Amal , Scarcelli Giuliano
Published: September 2024

We report a non-invasive technique to measure intraocular pressure by laterally imaging the eyeball during blinking. Eyelid-induced corneal deformation was analyzed to extrapolate IOP-induced corneal response. It was validated in vivo using the Valsalva maneuver.
Two-edge-resolved Passive Non-line-of-sight imaging in Three Dimensions
Authors: Czajkowski Robinson , Murray-Bruce John
Published: September 2024

We overview a technique to reconstruct in 3D a scene hidden from view using a single non-line-of-sight (NLOS) photograph of penumbral shadows cast by two perpendicular edges of a doorway.
Physics-Informed Multifocus Fluorescence and Quantitative Phase Imaging for Comprehensive Cellular Analysis
Authors: Alonso Julia R. , Silva Alejandro , Llaguno Juan , Demczylo Roman , Fernández Ariel , Arocena Miguel
Published: September 2024

This talk will provide an in-depth overview of computational microscopy, emphasizing its strong foundation in optics and physics. We will focus specifically on multifocus fluorescence imaging and quantitative phase imaging. By outlining key open problems in these areas, we aim to foster collaborative research opportunities.
Gradient based common-path optical diffraction tomography
Authors: Zdańkowski Piotr , Winnik Julianna , Trusiak Maciej
Published: September 2024

Common-path self-referenced total-shear quantitative phase imaging is often limited to sparse samples due to cumbersome overlapping of object replicas. We present initial steps towards low-coherence shearing optical diffraction tomography with sensitivity to refractive index gradient.
Sparse Color Fourier Ptychographic Microscopy With Implicit Neural Representations
Authors: Chan Matthew A. , Zhou Haowen , Feng Brandon Y. , Metzler Christopher A.
Published: September 2024

We apply implicit neural representations—which naturally capture spectral regularity—to reconstruct color Fourier ptychographic microscopy images from spectrally-sparse measurements. We conduct experiments on real-world specimens and demonstrate reconstruction quality comparable with fully sampled methods.
Improving the Resolution of Optical Microscopy using Random Illuminations
Authors: Sentenac Anne , Mangeat Thomas , Labouesse Simon , Legoff Loic , Heuke Sandro , Rigneault Hervé , Allain Marc , Idier Jérôme
Published: September 2024

We describe the basic principles of super-resolved Random Illumination Microscopy (RIM) and present different applications in fluorescence and non-linear imaging.
Light Transport through Scattering Media
Authors: Graduaskas Vytatutas , Mitchell Kevin , Radford Jack , Starshynov Ilya , Nerenberg Samuel , Binner Philip , Wright Ewan , Faccio Daniele
Published: September 2024

We present work motivated by the problem of photon transport through the human head and brain imaging. We demonstrate light guiding mechanisms in scattering media and widefield imaging of brain tissue stiffness for tumour identification.
Multi-tap CMOS Image Sensor with Programmable Functional Exposure: Application to Structured Light Based Quantitative Tissue Imaging
Authors: Feng Yu , Yoneyama Naoshi , Mars Kamel , Tanihata Yusuke , Nakazawa Sota , Iyanagi Kanta , Mori Ryotaro , Machida Manabu , Yasutomi Keita , Kawahito Shoji , Kagawa Keiichiro
Published: September 2024

Multi-tap CMOS image sensors have the capability of programmable exposure. We employed a 4-tap sensor to extend the dynamic range up to 118.3dB for simultaneous imaging of shallow and deep tissues with scanned structured light.
Computational inspection of VCSEL oxidation exploiting a spectrally-shaped illuminator
Authors: Rouxel A. , Monmayrant A. , Calvez S. , Almuneau G.
Published: September 2024

We introduce a co-design approach for VCSEL fabrication monitoring using sinusoidal illumination, well-suited for multi-layer inspection tasks. This methodology not only broadens the range of monitoring tasks but also aims to enhance precision in optoelectronic manufacturing.
Assessment of a Novel Tunable 3D Structured Illumination Microscopy (TSIM) System
Authors: Atibi Arash , Alqahtani Abdulaziz , Preza Chrysanthe
Published: September 2024

The study explored the impact of regularization on achieved resolution in 3D restorations using the MBPC iterative algorithm and the TSIM system, at different noise levels. Results indicate significant resolution enhancement.
Nanoscale Mid-IR Spectroscopic Imaging of Cellular Ultrastructure.
Authors: Greaves George E. , Auner Holger W. , Porter Alexandra E. , Phillips Chris C.
Published: September 2024

Our knowledge of cells’ internal organelles, comes mostly from EM but here we image them optically, for the first time. Our ~20nm resolution beats diffraction by ~400x, and our mid-IR spectroscopy gives lable-free chemical contrast.
Hologram authentication and classification via a Convolutional Neural Network
Authors: Ganiga Prakruthi , Priyadarshini  , Dodda Vineela Chandra , Kumar Ravi , Muniraj Inbarasan
Published: September 2024

Authentication techniques can be used to overcome the hologram counterfeiting problems. Here, we demonstrate an authentication scheme for digital holograms in a raw-complex form that is stored either in the cloud or on the metasurface using a CNN.
Image-reconstruction algorithm for an object sunk in a strongly scattering medium
Authors: Ďuriš Miroslav , Bělín Jakub , Chmelík Radim
Published: September 2024

We present a robust algorithm for image reconstruction when the target object is surrounded by a strongly scattering medium.
Effective nonlinearity of trigonal BaGa2GeS6
Authors: Kato Kiyoshi , Umemura Nobuhiro , Miyata Kentaro , Petrov Valentin
Published: September 2024

Implementing second-harmonic and sum-frequency generation processes with a specially oriented sample, we determine the magnitude and sign of the nonlinear optical coefficients d11, d22, and d31 of the recently developed trigonal BaGa2GeS6. We conclude that it is a viable alternative to the widely used chalcopyrite AgGaS2 for 1 µm pumped frequency downconversion to the mid-IR spectral range.
Wavelength correlation of Fried’s hidden phase
Authors: Hyde Milo , McCrae Jack , Kalensky Matthew , Spencer Mark F.
Published: September 2024

We study the wavelength correlation of Fried’s hidden phase for use in two-wavelength adaptive optics systems operating in strong scintillation. We find the correlation to be weak implying that there is little benefit to correcting the hidden phase in such systems.
Using LGS to calibrate scintillation for time resolved photometry
Authors: Hartley Kathryn E. , Osborn James , Calia Domenico Bonaccini , Bustos Felipe Pedreros , Centrone Mauro , Faccini Marco , Jenkins David
Published: September 2024

We present a new technique to correct photometric noise produced by atmospheric effects by using a laser guide star, projected along the same line of sight as the astronomical target, as a comparison star.
The NF-κB Factor Relish maintains blood progenitor homeostasis in the developing Drosophila lymph gland
Authors: Ramesh Parvathy , Tiwari Satish Kumar , Kaizer Md , Jangra Deepak , Ghosh Kaustuv , Mandal Sudip , Mandal Lolitika
Published: September 2024

Post-larval hematopoiesis in Drosophila largely depends upon the stockpile of progenitors present in the blood-forming organ/lymph gland of the larvae. During larval stages, the lymph gland progenitors gradually accumulate reactive oxygen species (ROS), which is essential to prime them for differentiation. Studies have shown that ROS triggers the activation of JNK (c-Jun Kinase), which upregulates fatty acid oxidation (FAO) to facilitate progenitor differentiation. Intriguingly, despite having ROS, the entire progenitor pool does not differentiate simultaneously in the late larval stages. Using expression analyses, genetic manipulation and pharmacological approaches, we found that the Drosophila NF-κB transcription factor Relish (Rel) shields the progenitor pool from the metabolic pathway that inducts them into the differentiation program by curtailing the activation of JNK. Although ROS serves as the metabolic signal for progenitor differentiation, the input from ROS is monitored by the developmental signal TAK1, which is regulated by Relish. This developmental circuit ensures that the stockpile of ROS-primed progenitors is not exhausted entirely. Our study sheds light on how, during development, integrating NF-κB-like factors with metabolic pathways seem crucial to regulating cell fate transition during development.
Increased levels of anti-Encephalitozoon intestinalis antibodies in patients with colorectal cancer
Authors: Nourrisson Céline , Moniot Maxime , Vercruysse Leslie , Bonnin Virginie , Pereira Bruno , Barnich Nicolas , Bonnet Mathilde , Jary Marine , Pezet Denis , Gagnière Johan , Poirier Philippe
Published: September 2024

Background

The prevalence of microsporidiosis in the general population, or within specific groups of individuals/patients, is largely underestimated. The absence of specific seroprevalence tools limits knowledge of the epidemiology of these opportunistic pathogens, although known since the 1980s. Since microsporidia hijack the machinery of its host cell and certain species multiply within intestinal cells, a potential link between the parasite and colorectal cancer (CRC) has been suggested.

Methodology/principal findings

To explore a potential epidemiological link between microsporidia and CRC, we evaluated the seroprevalence of Encephalitozoon intestinalis among CRC patients and healthy subjects using ELISA assays based on two recombinant proteins, namely rEiPTP1 and rEiSWP1, targeting polar tube and spore wall proteins. ELISA were performed in 141 CRC patients and 135 healthy controls. Patients with CRC had significantly higher anti-rEiPTP1 IgG levels than subjects in the control group. Anti-rEiPTP1 IgG, anti-rEiSWP1 IgG and anti-rEiPTP1 IgA levels were significantly increased among men with CRC compared to healthy men. Women with CRC who had died had higher rEiSWP1 IgG levels than those who were still alive.

Conclusions/Significance

These higher antibody levels against microsporidia in patients with CRC suggest a relationship between microsporidia and pathophysiology of CRC.