bluuebunny/crossref_metadata_2025 huggingface dataset:
Greenwashing, Simulated Green, and Beyond
Authors: Liu Xinmin
Published: December 2024

As a critical term, greenwashing refers derogatorily to the “perfect” images of green and lush scenery presented by corporate-led publicity campaigns to promote their environment-friendly postures while they continue their toxic and harmful business operations. This critique of greenwashing compares the terms greening and greenwashing, followed by a critique of “simulated green” and Yi-fu Tuan's 段義孚 (1930–2022) approach to simulated habitats. It explores the ambiguous role of technological determinism in China's modernization drive and seeks to dissect the nature of the “telescopic hegemony” of sight and vision in the Western model of technoscience and its questionable impact on China's effort to modernize by virtue of technological triumphalism. In examining the cultural ethos and modalities toward the color green to promote ecological awareness, the author focuses mainly on the human cognitive affect for conceiving green as a vital venue to rebuild corporeal ties with our biophysical settings, to guard against the misuse of green to “fix” landscapes by turning them into habitats desirable only to some humans. To that end, the article revisits Yi-fu Tuan's key notions of synesthesia, belongingness, and lived reciprocity and attempts to implement them in critiquing the uprooted and displaced nature of simulated landscapes (including simulated green).
Inventing Climate Change
Authors: Li Cheng
Published: December 2024

By engaging with and bringing together Chinese environmental humanities and science fiction studies, this article argues that the narratives of weather and climate revealed in late Qing science fiction serve as a metonymic vehicle and a medium for addressing China's social and political crises. The author analyzes three late Qing science fiction works—Bingshan xuehai 冰山雪海 (Iceberg and Snow Ocean), Dianshijie 電世界 (Electrical World), and Xinshitouji 新石頭記 (New Story of the Stone)—and delves into the intellectual history of modern Chinese environmental ideas. In exploring literary representations and environmental ideas surrounding topics on the air, this article makes three contributions. First, it compels us to reconsider the promises and pitfalls of evading the narrative of nature's decline. The imagination of the air in late Qing science fiction is characterized by its global scale, inclusive of the surface, but imperial in nature. Second, it illustrates that Chinese domestication of modern environmental ideas is not a one-way street when Chinese intellectuals appropriated Western notions for their own discursive maneuvering. Third, it suggests that the defamiliarization of the air serves as a barometer of understanding the repressed modernity in Chinese literature from an environmental perspective.
Regulation and function of the gill corticotropin-releasing factor system during osmoregulatory disturbances in Atlantic salmon
Authors: Culbert Brett M. , Mossington Emma , McCormick Stephen D. , Bernier Nicholas J.
Published: December 2024

While corticosteroids, including cortisol, have conserved osmoregulatory functions, the relative involvement of other stress-related hormones in osmoregulatory processes remains unclear. To address this gap, we initially characterized the gill corticotropin-releasing factor (CRF) system of Atlantic salmon (Salmo salar) and then determined: (1) how it is influenced by osmotic disturbances; (2) whether it is affected by cortisol; and (3) which physiological processes it regulates in the gills. Most CRF system components were expressed in the gills, with CRF receptor 2 (crfr2a), CRF binding protein (crfbp1 and crfbp2) and urocortin 2 (ucn2a) being the most abundant. The development of seawater tolerance in migratory juveniles (i.e. smolts) was associated with a general transcriptional upregulation of CRF ligands, but transcript levels of crfr2a, crfbp2, crfb2 and ucn2a decreased by ∼50% following seawater transfer. Accordingly, transfer of seawater-acclimated fish into freshwater increased crfr2a and ucn2a levels. Cortisol treatment of cultured gill filaments had marked effects on the CRF system; however, these effects failed to fully replicate changes observed during in vivo experiments, suggesting direct contributions of the gill CRF system during osmotic disturbances. Indeed, activation of the CRF system in cultured filaments from freshwater-acclimated (but not seawater-acclimated) salmon had transcriptional effects on several physiological systems (e.g. endothelial permeability, angiogenesis and immune regulation) which involved contributions by both CRF receptor subtypes. Overall, our results indicate that the gill CRF system is more active in hypoosmotic environments and directly contributes to the coordination of physiological responses following osmotic disturbances.
RNA-binding proteins in disease etiology: fragile X syndrome and spinal muscular atrophy
Authors: Dreyfuss Gideon
Published: December 2024

All RNAs exist in complexes (RNPs) with RNA-binding proteins (RBPs). Studies in my lab since the 1980s have identified, sequenced and characterized the major pre-mRNA- and mRNA-RBPs (hnRNPs/mRNPs), revealing RNA-binding domains and common features of numerous RBPs and their central roles in posttranscriptional gene regulation. The first links between RBPs and RNPs to diseases emerged serendipitously for fragile X syndrome, as its gene (FMR1) encoded RBP (FMRP), and spinal muscular atrophy (SMA), caused by deficits in survival motor neurons (SMN). Discoveries of the SMN complex and its unanticipated function in RNP assembly, essential for spliceosomal snRNP biogenesis, advanced understanding of RNA biology and pathogenesis. I reflect on how these and other contributions (e.g., nucleocytoplasmic shuttling, telescripting) originated from curiosity-driven exploration and highly collaborative lab culture. The vast RNA and RBP assortments are beneficial, but increase complexity and chances of disorders, making the RNP sphere a rich source for future discoveries.
Introduction
Authors: Stoyanoff Jeffery G.
Published: December 2024

This essay provides a landscape of queer and trans theoretical approaches, particularly as applied to medieval studies. Despite queer studies having been practiced since at least since the 1980s, medieval drama studies has seen fewer queer (and now trans) readings of medieval dramatic texts and bodies with few exceptions until recent years. Such approaches are more important now than ever given the ongoing assault against LGBTQIA individuals around the globe. Medieval drama is a fecund field for work in queer and trans studies, and through doing such work, we may indeed learn much about ourselves in the twenty-first century.
Introduction: Gascoigne from the Margins — Mediations, Translations, Appropriations
Authors: Bigliazzi Silvia
Published: December 2024

This introduction presents the essays in the Early Theatre Issues in Review ‘Gascoigne from the Margins — Mediations, Translations, Appropriations’, placing them in the context of current criticism on Gascoigne and bringing them into a conversation on his dramatic works looked at from the ‘margins’.
‘To Coosen the Expectation’: George Gascoigne’s Moral ‘Poses’ in Supposes
Authors: Silvestri Silvia
Published: December 2024

Supposes, based on Ludovico Ariosto’s Suppositi, found its way into print twice during George Gascoigne’s lifetime: first, in A Hundreth Sundrie Flowres (1573); then, in The Posies of George Gascoigne, a 1575 revised version of Flowres. In Posies’s prefatory letters, Gascoigne presents the collection as the ‘undoubted proof’ of his reformation, advertising the ‘morall discourses and reformed inventions’ it harbours. Recent criticism questions these claims, arguing for the marginality and inconsistency of Gascoigne's revisions, yet gives little consideration in this respect to the actual works featured in the miscellany, including Supposes – a play rich in sexual innuendos, left unamended in Posies. This article addresses this gap by reconsidering Supposes as functional to Gascoigne’s deceptive fiction of reformation as set forth in Posies’s paratexts.
Imagina ser investigador: Acercando la ciencia al alumnado de Fundamentos del Aprendizaje y la Conducta a través de la innovación docente
Authors: Santos-Carrasco Daniel
Published: December 2024

Ofrecer un contexto que le de sentido a las clases se ha visto como una herramienta útil para fomentar el interés y compromiso del alumnado. En el presente
trabajo se aplicó un Ciclo de Mejora en el Aula (CIMA) donde se ponía el foco en
las ideas iniciales del alumnado de la asignatura de Fundamentos del Aprendizaje y la Conducta, del primer curso del Grado en Psicología. Este modelo les daba
un contexto en el cuál eran investigadores, explorando la Psicología del Aprendizaje a través de un rol científico, para contestar en última instancia a la pregunta
¿Cómo hacemos ciencia? El modelo metodológico seguido parte de esta pregunta
general para desglosarse en cuatro subproblemas que son los que dan coherencia a los diferentes contenidos que se exploran en el CIMA. Todas las actividades
planificadas en este ciclo ponen el foco en darle al alumnado un papel activo, con
prácticas de simulación, de trabajo individual y en grupos, lo cual aportaba dinamismo al conjunto de sesiones. Tras la aplicación, se observó un nivel promedio de mejoría respecto a los conocimientos iniciales del 59%, reflejando cómo
la implementación del CIMA ha favorecido una evolución de los esquemas mentales del alumnado.
Aplicación de un Ciclo de Mejora en el Aula en la asignatura Dificultades del Desarrollo y del Aprendizaje
Authors: García Mendoza María del Carmen
Published: December 2024

Este capítulo resume los resultados de una experiencia de innovación docente enmarcada en el programa FIDOP (Formación, Innovación e Investigación
Docente del Profesorado de la Universidad de Sevilla). El objetivo de este Ciclo de
Mejora en el Aula (CIMA) fue aplicar un nuevo enfoque metodológico en la enseñanza de la asignatura Dificultades del Desarrollo y del Aprendizaje del Grado
en Educación Primaria de la Universidad de Sevilla. La implementación del modelo metodológico propuesto favorece la construcción del conocimiento a través
de la reflexión, la creatividad y la solución de problemas, permitiendo al alumnado ser un agente activo en el proceso de enseñanza-aprendizaje, bajo la supervisión y guía docente. Los resultados muestran una evolución positiva en el
aprendizaje del alumnado. Como mejoras para ciclos futuros, se incluye aumentar
la calificación concedida a la enseñanza como proceso y no como producto final.
Diseño, Aplicación y Evaluación de un Ciclo de Mejora en el Aula para la Enseñanza de Psicobiología de la Audición
Authors: Salas Peña Carmen
Published: December 2024

Este estudio presenta el diseño, la implementación y la evaluación de un Ciclo de Mejora en el Aula (CIMA) en la asignatura de Psicobiología Sistémica, específicamente en el tema de Psicobiología de la Audición, durante el segundo
cuatrimestre del Curso 2023-2024 en la Universidad de Sevilla. Enmarcado en un
modelo metodológico centrado en el estudiante, este proyecto busca mejorar la
calidad de la enseñanza y el aprendizaje en un contexto universitario. Se detalla
el modelo metodológico empleado, el mapa de contenidos, la secuencia de actividades y los criterios de evaluación utilizados. Los resultados revelan un impacto
positivo del CIMA en el rendimiento académico.
Aplicación de un Ciclo de Mejora en el Aula en Psicología de la Educación
Authors: Herrera Collado Ester
Published: December 2024

El presente trabajo consiste en el diseño, aplicación y evaluación de un Ciclo
de Mejora en el Aula (CIMA) dentro de la asignatura Psicología de la Educación.
Tras la reflexión acerca de los principios didácticos a seguir, los contenidos que se
deben adquirir y la evaluación del aprendizaje, se diseñaron una serie de actividades para llevar a cabo en las tres sesiones del CIMA. Los resultados mostraron
una alta participación del alumnado y una evolución satisfactoria. Se detectan
también dificultades del alumnado para alcanzar ciertos hitos de aprendizaje. Se
concluye con las mejoras que se seguirán aplicando en futuros CIMA, como la utilización de un cuestionario inicial y final y el uso de dinámicas lúdicas para abordar algunos contenidos, y con algunos aspectos a mejorar, como la inclusión de
una ficha para revisar sistemáticamente el trabajo del alumnado cuando trabaja
de forma autónoma.
Antimicrobial and antioxidant potential of Lavandula pedunculata extracts and their inhibitory action against Candida albicans
Authors: BAKRIM HANANE , MABCHOUR MERIEM , EL GALIOU OUIAM , ARAKRAK ABDELHAY , BAKKALI MOHAMMED , LAGLAOUI AMIN
Published: December 2024

Abstract. Bakrim H, Mabchour M, El Galiou O, Arakrak A, Bakkali M, Laglaoui A. 2024. Antimicrobial and antioxidant potential of Lavandula pedunculata extracts and their inhibitory action against Candida albicans. Biodiversitas 25: 4020-4032. Lavandula pedunculata (Mill.) Cav. is an aromatic and medicinal plant that has attracted widespread interest due to its numerous potential applications in the food and pharmaceutical industries. Our study aimed to investigate the biological activities of organic extracts obtained from L. pedunculata using Soxhlet extraction by n-hexane, dichloromethane, methanol, and distilled water. Extracts were evaluated for their antibacterial, antifungal, and antioxidant potential. Although these extracts did not display any antibacterial effect, we observed a significant effect against Candida albicans. The aqueous L. pedunculata extract exerted a bacteriostatic effect (11±1 mm, MIC=>40 mg/mL) and inhibited the formation of C. albicans biofilms (78.8%). Moreover, the aqueous fraction had the greatest potential to curb exopolysaccharide production and protein release, with OD values lower than control. Antifungal screening revealed that methanolic and dichloromethane extracts of L. pedunculata exerted the highest activity against Botrytis cinerea and Fusarium oxysporum as both extracts exert a fungistatic action (100% inhibition at 10 mg/mL). Antioxidant potential was particularly strong in the methanolic extract, as revealed by DPPH and FRAP assays (IC50= 0.012 mg/mL). Phytochemical screening showed a strong correlation between phenolic content and antioxidant effect. LC-MS analysis of the aqueous fraction detected the presence of glucuronide and glucoside conjugates of quercetin and kaempferol, apigenin, and vanillic acid, which are indicative of rich polyphenolic content.
Status of fishery resource management through an ecosystem approach in the several fishery management models in the Kampar River, Riau Province, Indonesia
Authors: PRIANTO EKO , JHONNERIE ROMIE , OKTORINI YOSSI , ADRIMAN ADRIMAN , FAJRI NUR EL
Published: December 2024

The Kampar River's high fish diversity dramatically benefits the local community. However, overfishing threatens the river's fishery resources. Urgent and concerted management efforts, including local wisdom implementation, are crucial to address this pressing issue. Law Number 45 of 2009 concerning Fisheries mandates sustainable fishery resource management, primarily through an ecosystem-based approach. From January to June 2024, researchers conducted a study in the Kampar River area to assess the status of ecosystem-based fishery resource management across several management models. The research combined qualitative and quantitative methods, using purposive sampling to select 5-10 participants from each village. Following guidelines from the Directorate of Fish Resources, the study developed indicators for each domain and converted them into composite indicators using the 'flag modeling' technique. Data analysis showed that the Lubuk Larangan management model achieved the highest ecosystem-based fishery resource status, scoring 13,374 points (green). The individual auction system, communal auction system, and government regulations scored 13,168, 13,120, and 10,899 points respectively (yellow). These results highlight the effectiveness of local wisdom-based approaches in sustainable fishery resource management for the Kampar River ecosystem.
CULTIVO HIDROPÔNICO DE HORTALIÇAS COM ÁGUA DE REUSO
Authors: Daise Barbosa Nicanor  , Patricia dos Santos Nascimento
Published: December 2024

Globalmente, durante as duas últimas décadas houve uma diminuição de mais de 20% da disponibilidade dos recursos de água doce por pessoa, sendo que mais de 3 bilhões destas pessoas vivem em áreas agrícolas, onde boa parte delas enfrentam severas limitações, devido aos altos níveis de escassez e déficit de água. Este fato ressalta a importância de se produzir mais com menos, especialmente na agricultura, o setor responsável por mais de 70% das retiradas de água do mundo (FAO, 2020).
PERFORMANCE EM TELA: EXPOSIÇÃO FOTOGRÁFICA AUDIOVISUAL DE CONTADORES DE HISTÓRIAS DE CIDADES DO INTERIOR DA BAHIA
Authors: Lazaro Gavaza Gomes Neto  , José Augusto Ramos da Luz
Published: December 2024

A Iconografia possui diversas formas de classificação como: pinturas, placas, esculturas, medalhas, postais, imagens, fotos, personalidades etc. Tendo como origem a palavra em grego “eikon”, seu termo possui como significado imagem e escrita, “ escrita da imagem”.
DESENVOLVIMENTO DE UMA INTERFACE DE PROGRAMAÇÃO DE APLICATIVOS (API) EM LINGUAGEM PYTHON PARA O ESTUDO DA CORRELAÇÃO TEMPORAL ENTRE BANCOS DE DADOS DA COLEÇÃO CIENTÍFICA DE ANIMAIS PEÇONHENTOS DE INTERESSE À SAÚDE PÚBLICA DA UEFS (CCAPH-UEFS) E DO SINAN
Authors: Matheus Silva Moreira  , Ernando Silva Ferreira
Published: December 2024

Os acidentes por animais peçonhentos ocorrem em vários países do mundo, entretanto somente os acidentes causados por serpentes foram inseridos na lista das doenças tropicais negligenciadas pela Organização Mundial da Saúde (OMS 2010, 2012), devido ao elevado número de acidentes e óbitos, principalmente nos países tropicais, que acometem, na maioria dos casos, populações pobres que vivem em áreas rurais e que são desprovidos de soroterapias.
"At once intimate and impossibly distant": The Blues Poetics of Lorenzo Thomas and Harryette Mullen
Authors: Pizza Joseph
Published: December 2024

Abstract: This essay explores blues-based poetics in the work of Lorenzo Thomas and Harryette Mullen. Drawing on the rich tradition of African American music, these poets developed important adaptations of blues concepts as both an extension of and challenge to debates surrounding postmodern poetics. For Thomas, this involved transplanting key elements of Black Arts poetics to the cultural traditions of African American communities in the South. Meanwhile, for Mullen, the approach has allowed her to counter the gendered stereotypes inherent in much of the blues, and Western poetic, traditions, through the development of a responsive, feminist art. Taken together, then, their friendly dialogue concerning the blues demonstrates a significant and overlooked chapter in the developed of contemporary African American poetry and poetics.
Tisser le deuil au féminin ou comment raconter sa mère morte
Authors: Calargé Carla
Published: December 2024

Résumés: Dans cet essai, je propose d'examiner le rapport mère-fille tel que développé dans deux œuvres de Fawzia Zouari, en postulant que ce rapport est au cœur de la dynamique génératrice de l'écriture. Bien plus, parce que l'exploration de ce rapport est provoquée par la mort de la mère, cette exploration est rendue encore plus complexe, sinon problématique, du fait qu'elle sert à donner une voix à la morte mais aussi à la marginaliser. En tissant le personnage de la mère dans les mots d'une histoire dont elle contrôle les deux bouts, Zouari place cette dernière et se place elle-même, non sans ambivalence et ambiguïté, dans une généalogie féminine censée contrecarrer l'effacement et l'invisibilisation auxquels les femmes sont condamnées dans une culture patriarcale. Ce faisant, et en s'arrogeant la prérogative traditionnellement masculine du discours, elle assure une sorte de transmutation qui préserve la mère malgré sa disparition : au moment de l'écriture, mais aussi à chaque lecture, cette dernière, son histoire et son monde sont (ré)incarnés par le tissage des mots. Mais ces mots qui racontent la mère sont aussi ceux qui signalent la fin du travail du deuil : le roman devient ainsi linceul et les mots, censés dire le corps maternel, sont ceux-là même qui servent à l'ensevelir. Abstract: In this essay, I examine the mother-daughter relationship as portrayed in two of Fawzia Zouari's works. I argue that this relationship lies at the core of the dynamics that drive the act of writing. Moreover, since this exploration is prompted by the mother's death, it becomes even more complex, if not problematic, as it not only gives a voice to the deceased but also marginalizes her. By weaving the character of the mother into a narrative she controls, Zouari places both herself and her mother –albeit with ambivalence and ambiguity– within a feminine genealogy meant to counter the erasure and invisibility imposed on women in a patriarchal culture. In doing so, Zouari claims the traditionally masculine prerogative of discourse, effecting a transmutation that preserves the mother despite her death. At the moment of writing, and with each reading, the mother, her story, and her world are (re)incarnated through the weaving of words. However, the very words that convey the mother's story are the same ones that signal the end of the grieving process: the novel thus becomes a shroud, and the words intended to "speak" the maternal body ultimately serve to enshroud it.
Examination of the traditional Raman Lidar technique II: evaluating the ratios for water vapor and aerosols: erratum
Authors: Whiteman David N.
Published: December 2024

Errors in Appl.
Opt. 42, 2593
(2003)APOPAI0003-693510.1364/AO.42.002593 are corrected
here.
17-GHz Kerr-lens Mode-locked Monolithic Ti:Sapphire Laser
Authors: Fiehler Torben , Wittrock Ulrich
Published: December 2024

We present a self-starting Kerr-lens mode-locked monolithic Ti:sapphire laser generating nearly bandwidth-limited 196 fs pulses at 900 mW average output power with a pulse repetition rate of 16.9 GHz.
Enhancement of Kerr-type, All-PM, Linear Mode-locked Fiber Lasers via Suppression of Cross-Phase Modulation
Authors: Edelmann Marvin , Hua Yi , Shafak Kemal , El Sharkawy Yousef , Pergament Mikhail , Kärtner Franz X.
Published: December 2024

Here, we comprehensively demonstrate that XPM suppression in Kerr-type all-PM linear mode-locked fiber oscillators via implementation of an intracavity YVO4-crystal enables reduced timing-jitter and intensity noise, while enhancing time- and frequency-domain output pulse quality.
Simulation and optimization of a polarized nanosecond hybrid Ho3+ and Tm3+-doped silica fiber & Ho3+:YAG MOPA at 2048 nm targeted for ZGP OPO pumping
Authors: Lorenz Dominik , Rupp Marius , Panitzek Dieter , Romano Clément , Schneider Julian , Goth Katharina , Deutsch Johannes , Eichhorn Marc , Kieleck Christelle
Published: December 2024

Ho3+:YAG amplifiers are able to efficiently scale the pulse energy at wavelengths as short as 2048 nm. While maintaining 5.3 dB gain, an output power of 81.6 W and a slope efficiency of 68 % is achieved.
100-μJ, 100-kHz, broadband Ho:CALGO regenerative amplifier at 2.08 μm
Authors: Suzuki Anna , Kassai Boldizsar , Tomilov Sergei , Wang Yicheng , Stasevičius Ignas , Astrauskas Ignas , Darginavičius Julius , Saraceno Clara J.
Published: December 2024

We report on a broadband and high-energy pulse amplification at 2.08 μm, using the gain material Ho:CALGO. A pulse energy of 100 μJ was obtained at a repetition rate of 100 kHz.
2.05 µm CPA System Delivering 75-mJ Pulses with 2.2 ps Duration at 1-kHz Repetition Rate
Authors: Bock Martin , Mero Mark , Nagy Tamas , Griebner Uwe
Published: December 2024

We report on a ps Ho:YLF CPA delivering pulses with 34-GW peak power at 1 kHz. Starting with a novel seed source, the implemented regenerative amplifier provides 22-mJ input pulses for two booster stages.
Thermo-optical and Chirped Pulse Amplification Performance of Yb:CALYO and Yb:CALGO Crystals
Authors: Georgiev Kaloyan , Petrov Lyuben , Shishkov Stephan , Danchova Nina , Velkov Dimitar , Trifonov Anton , Xu Xiaodong , Buchvarov Ivan
Published: December 2024

Thermo-optical and chirped pulse amplification performance of Yb:CALYO and Yb:CALGO crystals are experimentally studied, demonstrating similar thermal characteristics, ideal for sub-100 fs multi-kHz laser amplifiers.
Yellow Laser Emission From Dy:BaF2 Nanoparticle Doped Aluminosilicate Fiber
Authors: Lee Jinho , Cahoon Mary Ann , Meehan Bailey , Ososkov Yan , Hawkins Thomas W. , Ballato John , Jackson Stuart D.
Published: December 2024

We experimentally demonstrate a yellow laser based on Dy:BaF2 nanoparticle (NP) doped aluminosilicate fiber. We obtain an output laser with a center wavelength of ~581.5 nm and a maximum output power of ~21 mW.
Overcoming limitations in high power fiber laser systems
Authors: Jauregui Cesar , Khalil Yahia , Palma-Vega Gonzalo , Tu Yiming , Kholaif Sobhy , Bahri Mehran , Klenke Arno , Limpert Jens
Published: December 2024

Fiber laser systems have demonstrated an unprecedented power-scaling, being currently the solid-state laser concept delivering the highest average power with diffraction limited beam quality. This power scalability could only be unlocked by finding creative solutions to the multiple limitations (non-linear and thermal) of fibers. In this talk we will review such limitations and the most recent advances in their understanding and mitigation, including the most recent research on multicore fibers.
Record-High 10.3 W Average Power at 3.1 µm from an Optical Parametric Oscillator
Authors: Pecile Vito F. , Leskowschek Michael , Modsching Norbert , Wittwer Valentin J. , Südmeyer Thomas , Heckl Oliver H.
Published: December 2024

We present an optical parametric oscillator synchronously-pumped with a 125 MHz Yb:fiber chirped pulse amplifier and achieve a record-high average power of 10.3 W at 3.1 µm with a free-running power stability of 0.84%.
Ultrahigh Contrast of a Second-Harmonic Pulse of a Hybrid Optical Parametric Chirped-Pulse–Amplification and Nd:glass Laser
Authors: Begishev I. A. , Dorrer C. , Bromage J. , Zuegel J. D.
Published: December 2024

The ultrahigh contrast of 1019 at second-harmonic pulses has been measured on a hybrid optical parametric chirped-pulse–amplification and Nd:glass laser. The source of the prepulses has been identified.
Multipass cell for mJ-level, sub-two cycle nonlinear pulse compression with >100W average power at 1.9 µm
Authors: Wang Ziyao , Röder Warunya , Heuermann Tobias , Gierschke Philipp , Zhang Yi , Karst Maximilian , Lenski Mathias , Eisenbach Lucas , Rothhardt Jan , Limpert Jens
Published: December 2024

In this work, we present a nonlinear post-compression with an average power exceeding 100 W based on a gas-filled multipass cell providing sub-two-cycle pulses. It is enabled by a thulium-doped fiber chirped-pulsed amplification system.
Power Scaling of a Narrowband PPLN Non-Resonant Optical Parametric Oscillator
Authors: Das Subhasis , Temel Tugba , Murray Robert T. , Schirrmacher André , Divliansky Ivan B. , Wang Li , Chen Weidong , Mhibik Oussama , Petrov Valentin
Published: December 2024

Using a Volume-Bragg-Grating at the signal wavelength in a periodically-poled LiNbO3 (PPLN) non-resonant optical parametric oscillator we achieve a total average power of 11.35 W at 20 kHz corresponding to a conversion efficiency of 63%.
High-power mid-IR ns-pulsed CdSiP2 OPO pumped at 2.06 µm compared to ZnGeP2 OPO
Authors: Piotrowski Marcin , Bogas-Droy Achille , Spindler Gerhard , Hildenbrand-Dhollande Anne
Published: December 2024

In a compact cavity, we use a CSP OPO pumped by a Ho:LLF laser (2.06 µm) to achieve more than 8 W of mid-IR power. We compare the performance of the CSP non-linear crystal to commonly used ZGP for mid-IR applications.
Yellow Solid-State Laser with 61% Slope Efficiency
Authors: Badtke Moritz , Kalusniak Sascha , Püschel Stefan , Tanaka Hiroki , Kränkel Christian
Published: December 2024

We report on highly efficient yellow laser operation of a cryogenic Tb3+:LiYF4 laser, yielding record-high slope efficiencies of 61% at 581 nm and 100 K as well as 37% at 587 nm and room temperature.
Micro-fluorescence lifetime and spectral imaging of thulium doped laser materials
Authors: Kuhn S. , Chacko D.M. , Haarlammert N. , Schreiber T.
Published: December 2024

The spectroscopy of Tm-doped fiber preforms fabricated using MCVD is analyzed spatially resolved using a newly developed scanning confocal fluorescence microscope. Fluorescence spectra as well as fluorescence lifetime can be evaluated with high spatial resolution and the effects of preform fabrication are analyzed. The proposed method is a valuable tool for analyzing and improving Tm-doped materials, not only derived from MCVD processes but also for any Tm-doped material.
Exploring the second threshold criterion of the Nd:YVO4 passively Q-switched laser with temperature-elevating
Authors: Cho Chun-Yu
Published: December 2024

To reach the second threshold criterion for the Nd:YVO4 passively Q-switched laser with a Cr4+:YAG saturable absorber, the method of temperature-elevating for decreasing emission cross section with a proper gain-medium-to-absorber-mode-size-ratio resonator is explored.
Growth, Spectroscopy and Laser Operation of a “Mixed” Calcium Aluminate Tm,Ho:Ca(Gd,Y)AlO4
Authors: Zhang Peixiong , Lin Zhang-Lang , Loiko Pavel , Eremeev Kirill , Li Zhen , Chen Zhenqiang , Zhang Ge , Mateos Xavier , Camy Patrice , Braud Alain , Griebner Uwe , Petrov Valentin , Chen Weidong
Published: December 2024

We report on the growth, polarized spectroscopy and laser operation of a “mixed” tetragonal calcium aluminate crystal, Tm,Ho:Ca(Gd,Y)AlO4. A maximum continuous-wave output power of 585 mW is achieved at 2093.5 nm with 27.3% slope efficiency.
Laser Induced Damage Evaluation for Laser Material Development
Authors: Osanai Akihiro , Kausas Arvydas , Taira Takunori
Published: December 2024

The laser induced damage in crystals with inhomogeneity can be distinguished as derived from an intrinsic factor and deterioration factors. We investigated the dependency of each damage threshold value upon irradiated laser beam condition.
Flexible dye-doped cholesteric liquid crystal polymer film laser with thermal stability
Authors: Lin Ja-Hon , Xie Zong- Han , Huang Chiung-Cheng
Published: December 2024

Using ISO-(6OBA)2 as the chiral molecule, we produced a band-edge laser from dye-doped cholesteric liquid crystal film, which exhibits a red shift when subjected to mechanical stress and excellent stability as the temperature increases.
Advanced Laser Cladding of Fe-Cr-Ni-V Alloy for the Restoration of Steel Rollers
Authors: Chen Hsuan-Kuang , Yueh Chun-Wei , Chen Tai-Sheng , Hsiao Wei-Tien
Published: December 2024

The steel roller has a martensitic hard surface, and welding repairs cause cracks. Laser clad stainless steel adhesion layer and wear-resistant high-temperature alloys will improve cracking and provide stability.
Laser-induced breakdown spectroscopy based depth-wise compositional analysis for micro-LED repair
Authors: Jung Woonkyeong , Jeon Gookseon , Keum Hohyun , Kim Youngjoo , Choi Janghee
Published: December 2024

This study reports laser-induced breakdown spectroscopy (LIBS)-based depth profiling of micro-LEDs, demonstrating a novel repair technique by monitoring plasma emissions to identify layers, suggesting electrode reuse and selective LED portion removal for repair.
A comparative study of supercontinuum generation in undoped scintillator crystals
Authors: Marčiulionytė Vaida , Tamošauskas Gintaras , Šutovas Matas , Dubietis Audrius
Published: December 2024

We demonstrate supercontinuum generation covering more than 2 octaves over 0.4 – 2 µm range in different undoped bulk scintillator crystals pumped by fundamental harmonic of 180 fs Yb:KGW laser.
Diode-pumped SESAM mode-locked Yb:Ca3La2(BO3)4 laser
Authors: Zeng Huang-Jun , Lin Zhang-Lang , Zhang Ge , Pan Zhongben , Liang Hsing-Chih , Loiko Pavel , Mateos Xavier , Petrov Valentin , Chen Weidong
Published: December 2024

We report on a diode-pumped SESAM mode-locked Yb:Ca3La2(BO3)4 laser delivering 35 fs soliton pulses at 1055.9 nm with an average output power of 96 mW at a repetition rate of ~66.5 MHz.
A new versatile front-end for the PETAL ultrahigh intensity laser facility
Authors: Hugonnot Emmanuel , Scol Florent , Santacreu Nathalie , Coïc Hervé , Blanchot Nathalie , Leroux Vincent , Morbieu Thomas , Bruel Nicolas , Fréchet Béatrice , Durand Eric , Chalus Olivier , Casagrande Olivier
Published: December 2024

PETAL is a PW laser facility operating in the multi-hundred Joules and sub-picosecond range. A new front-end with temporal contrast control, pulse duration adjustment and two delayed beams is currently developed to improve PETAL performances.
1931 nm Thulium MOPA Fiber Laser
Authors: Lautenschläger Jan , Romano Clément , Lorentz Dominik , Schneider Julian , Panitzek Dieter , Rupp Marius , Eichhorn Marc , Kieleck Christelle
Published: December 2024

A compact, high-power 1931 nm diode-pumped, all-fiber MOPA laser with up to 100 W of output power and narrow linewidth is demonstrated. The laser achieves a slope eﬃciency as high as 59 %.
Modeling of amplified spontaneous emission in high-power solid-state laser amplifiers: toward modern and versatile simulation chain
Authors: Quinoman P. , Coïc H. , Moreau J. G. , Bordenave E. , Neauport J.
Published: December 2024

The three-dimensional modeling of optical pumping of a high-power solid-state laser amplifier is presented. The energy deposition obtained from Zemax is used to compute the gain distribution and the bi-dimensional amplified spontaneous emission flux.
Highly Efficient 900 W LD Stack Pump Module for Yb:YAG Thin-Disk Laser
Authors: Hashimoto Kohei , Sikociński Paweł , Smrž Martin
Published: December 2024

We report an extremely compact LD stack pumped thin-disk laser module. The non-suitable pump spot shape which is obtained ordinal fiber coupled LD pumping was compensated by optimizing optical elements geometry and configuration.
Exploration of dynamical multiple optical vortices generated from frequency-doubled laser beams
Authors: Tung Jung-Chen , Sung Chen-Kai , Chen Bo-Hong
Published: December 2024

Criteria for dynamically rotating optical vortices were analyzed and applied to design concave-flat laser resonators, producing frequency-doubled structured beams, which were then astigmatically transformed to create rotating multiple vortices.
Power Scaling of a Four-Wave Mixing Source at 730 nm
Authors: Shaw L. Brandon , Gattass Rafael R. , Carlson Augustus X. , Rhonehouse Daniel L. , Hemmer Patrick M. , Chin Geoffrey D. , Sanghera Jasbinder S.
Published: December 2024

We demonstrate 9.1 W output at 730 nm by four-wave mixing in a photonic crystal fiber using an all-fiber spliced configuration with a quasi-CW pump at 1053 nm.
Beam shaping, process monitoring and AI – Successful teamwork to improve e-mobility
Authors: Kogel-Hollacher Markus , Nicolay Thomas , Reiser Jens , Schwarz Joachim
Published: December 2024

Photonic production chains represent a transformative approach to manufacturing, leveraging the unique properties lasers for material processing. The integration of artificial intelligence (AI) into these processes further enhances efficiency and adaptability, paving the way for more intricate designs and optimized production outcomes. This became even clearer in the context of battery and e-mobility applications.
From Laser Fusion to Micro-Welding: Freeform Refractive Beam Shaping of Lasers
Authors: Kidd Stephen Robert
Published: December 2024

For a majority of laser applications, the default laser output is not optimal. Freeform refractive beam shapers can optimize beam shape and profile. Applicable laser applications include fusion, welding, cutting, micro-machining and marking.
Multi-path-delayed Interferometer for Overcoming Coherent Ranging Using Multiple FBGs
Authors: Choe Won Tae , Park Sang Min , Kim Chang-Seok
Published: December 2024

We propose a multi-interferometer design using fiber Bragg gratings and a frequency decoding algorithm to extend the measurable range of coherent LiDAR systems. This approach addresses laser coherence length, demonstrating improved measurable distance.
Swept-Source Based Time-Domain Coherent LiDAR without Coherence Length Limits
Authors: Jung Dahun , Kim Jaeheung , Bak Seongjin , Kim Gyeong Hun , Kim Chang-Seok
Published: December 2024

In this study, we propose time-domain coherent light detection and ranging (LiDAR) system that can measure distance regardless of light source's coherence length. Using stretched-pulse mode-locked (SPML), we acquired distance information over 10 meters.
Multi-beam formation of a tiled fiber laser array with closed-loop control
Authors: Dong Lizhi , Wang Xun , Liu Wenjin , Chen Shanqiu , Liu Ziyue , Zhang Ying , Liu Ziyu , Huang Jian , Ning Yu , Yu Xin
Published: December 2024

Tiled fiber laser arrays have attracted significant attention for their potential in power scaling and mitigation of atmospheric turbulence. In recent years, the capability to form multiple beams has been highly desirable across a variety of applications. However, existing tiled laser arrays have been limited to generating a single combined beam owing to optimization-based control algorithms. We present a novel approach for multi-beam formation using a tiled fiber laser array with closed-loop steering control. A tagging laser is divided and coupled into each beamlet. By modulating the sequence of the tagging laser pulses and synchronizing a far-field camera, the pointing of each beamlet is directly measured and individually controlled. The beamlets are then organized in groups, and the beamlets in each group are combined to a common position in the far field. Multiple beams can be formed on demand through corresponding group configurations. An experimental system comprising seven beamlets and an adaptive fiber collimator array achieved the formation of one, two, and three beams using the proposed method. To the best of our knowledge, this is the first demonstration of closed-loop multi-beam formation using a tiled fiber laser array.
Physical processes of mirror reversal based on the real image of the optical system
Authors: Tanaka Junichi
Published: December 2024

All explanations for the mirror reversal phenomenon thus far before the author’s work have been based on the geometric illustration of plane symmetry, whether or not the explainer thinks the illustration is based on the optical principle. However, optically, those illustrations are based on the virtual image, and such situations as the plane symmetry can also be substantialized by using real objects of an enantiomorphic pair, such as right and left hands, without using optical explanation. Thus, only such an illustration of the plane symmetry does not represent the optical mechanism of the mirror reversal phenomenon perfectly. Another lack of understanding in explanations thus far is that directional notions such as top-bottom, front-back, and right-left are not geometric, so such directional notions cannot be used in strictly explaining physical processes. This time, I analyzed the problem based on the real image formed in a camera system as a substitute for the human eye, utilizing the Cartesian coordinate system. Thus, the study clarified the physical process of the mirror reversal phenomenon optically, directly from the specular reflection of the ray, resolving the above two problems. Further, this study proved that the concept of isotropic and anisotropic spaces underlies the mirror recognition and the mirror reversal phenomenon.
Ultrashort pulses in structural analysis of diamond layers with angstrom resolution
Authors: Makarov Dmitry , Makarova Ksenya , Eseev Marat , Gusarevich Evgeny , Borisov Mark
Published: December 2024

X-ray crystallography is commonly used to determine crystal structures, whether continuous or ultrashort X-rays are used. In this paper, it is shown that using only ultrashort pulses, it is possible to determine the interplanar spacing in diamond layers, the distance between which can be only a few angstroms. The results obtained can be extended, with further development of the presented theory, to determine 3D objects in the crystal structure, the dimensions of which can be only a few angstroms.
Screening and diversity analysis of Dibutyl phthalate degrading bacteria in agricultural soil in Chengdu, China
Authors: Li Yong , Gong Sidan , Liu Huan , Li Yajie
Published: December 2024

Dibutyl phthalate (DBP) with teratogenicity, carcinogenesis, and mutagenesis, is a ubiquitous endocrine disruptor in the environment. The widespread usage of plastic mulch has resulted in a severe DBP pollution problem in agricultural soil. One of the most vital ways to mitigate the DBP pollution problem is to use DBP degrading bacteria to reduce the concentration of DBP in agricultural soil. DBP degrading bacteria studied in previous studies mainly come from sewage treatment plants, rivers, landfills, bioreactors, and other environmental media. At the same time, there was relatively little research on DBP degrading bacteria in agricultural soil. Therefore, using the pure culture approach, the candidate DBP degrading strains were isolated and screened from vegetable plots contaminated with plastic mulch in Dayi County, Chengdu City, Sichuan Province, China. The taxonomy of the strains was determined using the 16 sedimentation ribosomal deoxyribonucleic acid (16S rDNA) molecular technique. Furthermore, ultraviolet and visible spectrophotometry and high performance liquid chromatography (HPLC) were used to assess the degrading capability of strains. The findings showed that a total of twenty-six DBP degrading strains were screened from vegetable plots contaminated with plastic mulch in Dayi County, Chengdu City, Sichuan Province, China, and these strains belonged to two phyla: Proteobacteria and Bacillota, eight families, including Pseudomonas, Enterobacteriaceae, and Bacillaceae, as well as ten genera, such as Enterobacter, Pseudomonas, and Bacillus. One of them, the strain SWDB-7 was a potentially new species in the Enterobacter genus. The most prominent genus of the isolated strains was Enterobacter. There were significant variations in the degradation capability of different obtained DBP degrading strains. and their degradation efficiency was 14.12%-91.86%. With a total DBP removal rate of 91.86%, strain SWDB-15 had the most effective degrading capability among them. To sum up, the DBP degrading strains in vegetable plots contaminated with plastic mulch in Dayi County, Chengdu City, Sichuan Province, China are rich in diversity and capable of breaking down DBP.
Linsitinib inhibits IGF-1-induced cell proliferation and hyaluronic acid secretion by suppressing PI3K/Akt and ERK pathway in orbital fibroblasts from patients with thyroid-associated ophthalmopathy
Authors: Lee Ji-Young , Lee Seong-Beom , Yang Suk-Woo , Paik Ji-Sun
Published: December 2024

Thyroid-associated ophthalmopathy (TAO), an autoimmune disorder of the retrobulbar tissue, is present in up to 50 percent of Graves’s hyperthyroidism patients. Insulin-like growth factor 1 receptor (IGF-1R) has received attention as a target for the development of therapeutic agent for TAO. IGF-1R and TSHR (thyroid stimulating hormone receptor) interact with each other to form a physical or functional complex, further promoting the development of TAO. Linsitinib, OSI-906, is an inhibitor of IGF-1R and has been reported to inhibit cell proliferation of several tumor cells. Linsitinib has been receiving attention not only for its anticancer effect, but also for its anti-inflammatory effects. It has been reported that linsitinib reduces infiltration of inflammatory cells in orbital tissues, resulting in the reduction of muscle edema and adipose tissues in an experimental murine model for Graves’ disease. In the current study, we investigated the issue of whether linsitinib inhibits the IGF-1-induced proliferation of orbital fibroblasts (OFs) via the suppression of phosphatidylinositol 3-kinase (PI3K) / Akt and extracellular signal-regulated kinase (ERK) pathway. Our results showed that pretreatment with linsitinib inhibited IGF-1-induced cell proliferation and hyaluronic acid secretion in the OFs of TAO patients. In addition, our results showed that pretreatment with linsitinib inhibited IGF-1-induced phosphorylation of IGF-1Rβ at Tyr1135, Akt at Ser473, and ERK in the OFs of patients with TAO. These results indicate that linsitinib inhibits IGF-1-induced cell proliferation and hyaluronic acid secretion in the OFs of TAO patients by suppressing the PI3K/Akt and ERK pathways, validating the use of linsitinib as a novel therapeutic agent for TAO.
Vaccination card loss and associated factors in Ethiopia: A multilevel analysis using Ethiopia Mini Demographic and Health Survey 2019 data
Authors: Edossa Zerihun Kura , Erchafo Lubago Belay , Baye Minale Fekadie , Alemu Rediet Kidane , Tesema Abebe Abera , Abamecha Fira , Siraneh Yibeltal , Tamiru Dessalegn , Bayou Negalign Berhanu , Debelew Gurmesa Tura
Published: December 2024

Background

The loss of vaccination cards is a momentous public health challenge in the prevention of vaccine-preventable diseases in most developing countries. There is a paucity of studies on the magnitude of vaccination card losses and associated factors in Ethiopia. Therefore, the aim of the current study was to assess the level of vaccination card loss and associated factors in Ethiopia.

Methods

Data were extracted from the 2019 Ethiopia Mini Demographic and Health Survey, a nationally representative household survey of women aged 15–49 years with children aged 0–35 months. Data from a total of 3208 mother-child pairs was extracted for the study. A multilevel logistic regression model with random effect analysis techniques was used to identify individual and regional-level determinants of vaccination card loss. We checked the model’s fitness by using Akaike Information Criteria and Bayesian Information Criteria. Odds ratios with a 95% Confidence intervals were used to declare statistical significance.

Results

A total of 3208 mother-child pairs from nine regions and two city administrations were included in the analysis. The result revealed that 1933 (60.26%) mother-child pairs did not have vaccination cards during home visits. illiterate mother 2.239 (95% CI: 1.297, 3.864), lowest wealth index category 2.089 (95% CI: 1.432, 3.048), ANC non-user 2.047 (95% CI: 1.605, 2.609), children living with their caretaker 6.749 (95% CI: 1.425, 13.654), having no access to television 1.384 (95% CI: 1.150, 1.664), longer birth interval 1.325 (95% CI: 1.027,1.710), giving birth at home and private health facilities 1.985 (95% CI: 1.579, 2.497), 1.696 (1.086, 2.648), contraceptive non-users 1.295 (95% CI: (1.042,1.609) and children aged 12–23 months and 24–35 months 1.577 (95% CI: 1.252, 1.985) and 2.282 (1.803, 2.889) were associated with vaccination card loss.

Conclusions

Overall vaccination card loss among mothers of 0–35-month-old children is considerably high. To enhance maternal awareness regarding the significance of vaccination cards, promote antenatal care and public health facility delivery, and future researchers have to explore how to enhance vaccination card retention in Ethiopia.