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Rethinking Interpreter Training: The Role Of Microlearning In Boosting Knowledge Retention, Hicham Boughaba Jun 2026

Rethinking Interpreter Training: The Role Of Microlearning In Boosting Knowledge Retention, Hicham Boughaba

Al-Kīmiyā

This study examines the effectiveness of microlearning interventions in enhancing knowledge retention and interpreting performance among trainee interpreters. A quasi-experimental design was employed, with interpreting students divided into two groups: an experimental group receiving targeted microlearning modules on specialized terminology and a control group relying on general knowledge only. Their performance was evaluated according to four criteria: accuracy, clarity and fluency, terminology usage, and cultural and contextual understanding. Results indicate that participants who were exposed to microlearning modules achieved significantly higher scores across all evaluation criteria, with notable gains in accuracy and terminology usage. These findings suggest that microlearning constitutes …


Penet, Jc., Moorkens, J. & Yamada, M. (Eds.). 2026. Teaching Translation In The Age Of Generative Ai: New Paradigm, New Learning? Language Science, May Hobeika Haddad Jun 2026

Penet, Jc., Moorkens, J. & Yamada, M. (Eds.). 2026. Teaching Translation In The Age Of Generative Ai: New Paradigm, New Learning? Language Science, May Hobeika Haddad

Al-Kīmiyā

Dès l’introduction, cet ouvrage collectif s’inscrit dans le prolongement de publications récentes consacrées à l’intelligence artificielle et à la traduction, que Penet mentionne explicitement, notamment celles de Kenny, Machine Translation for Everyone: Empowering Users in the Age of Artificial Intelligence (2022), et de Pym et Hao, How to Augment Language Skills: Generative AI and Machine Translation in Language Learning and Translator Training (2025).
[...]


Discursive Analysis Of Authoritarian Islamist Populism: The Case Of The Justice And Development Party (Morocco), Youssef Aboudi Jun 2026

Discursive Analysis Of Authoritarian Islamist Populism: The Case Of The Justice And Development Party (Morocco), Youssef Aboudi

Al-Kīmiyā

This article analyzes the linguistic modalities constitutive of political populism, with particular attention to its contemporary authoritarian-leaning manifestations. Conceived as a discursive construction or a style of communication (Taguieff, 1997), populist discourse is organized around a charismatic figure who claims a direct relationship with an idealized people, set in opposition to an elite deemed illegitimate and inherently malevolent (Breton, 2009). The study advances the hypothesis that the staging of charismatic power, grounded primarily in conspiratorial logics that generate an atmosphere of insecurity and fear (Wodak, 2015), contributes to reinforcing mechanisms of symbolic and political domination while inhibiting critical reflexivity (Weber, …


Matthew Kanapesky V. Township Of East Brandywine Jun 2026

Matthew Kanapesky V. Township Of East Brandywine

2026 Decisions

USDC for the Eastern District of Pennsylvania


Jafarnia Williams V. Superintendent Rockview Sci Jun 2026

Jafarnia Williams V. Superintendent Rockview Sci

2026 Decisions

USDC for the Western District of Pennsylvania


The Effect Of Think-Pair-Share Strategy In Performance The Offensive Skills (Serving And Setting) In Volleyball, Najlaa Abbas Al-Zuhairi, Nihad Mohammed Alwan, Liza Rustum Yaqoob, Missaa Nadem, Yousra Juma Al-Sinani Jun 2026

The Effect Of Think-Pair-Share Strategy In Performance The Offensive Skills (Serving And Setting) In Volleyball, Najlaa Abbas Al-Zuhairi, Nihad Mohammed Alwan, Liza Rustum Yaqoob, Missaa Nadem, Yousra Juma Al-Sinani

Modern Sport

The primary objective of this study was to identify the effectiveness of the Think–Pair–Share strategy in volleyball, particularly with regard to the two skills under investigation. The study was conducted on a sample of female students from the College of Physical Education and Sport Sciences for Women, University of Baghdad. Concerning the methodology, the researchers adopted an experimental approach. The research population consisted of 93 female students distributed across five sections, and the study sample comprised 40 students selected randomly. Of these, 20 students were assigned to the experimental group and 20 to the control group, representing 43% of the …


Macropinocytosis Inhibition Attenuates Profibrotic Responses In Lung Fibroblasts And Pulmonary Fibrosis Models, Ivan O Rosas, Aaron K Mcdowell-Sanchez, Santiago Sanchez, Juan D Cala-Garcia, Alan R Waich Cohen, Elisa Ruiz-Echartea, Scott A Ochsner, Daniel C Kraushaar, Lindsay J Celada, Dandan Sun, Francesca Polverino, Cristian Coarfa, Neil J Mckenna, Konstantin Tsoyi Jun 2026

Macropinocytosis Inhibition Attenuates Profibrotic Responses In Lung Fibroblasts And Pulmonary Fibrosis Models, Ivan O Rosas, Aaron K Mcdowell-Sanchez, Santiago Sanchez, Juan D Cala-Garcia, Alan R Waich Cohen, Elisa Ruiz-Echartea, Scott A Ochsner, Daniel C Kraushaar, Lindsay J Celada, Dandan Sun, Francesca Polverino, Cristian Coarfa, Neil J Mckenna, Konstantin Tsoyi

Faculty, Staff and Students Publications

Idiopathic pulmonary fibrosis (IPF) is a devastating chronic lung disorder with limited treatment options. Macropinocytosis is one of the key cellular processes involved in nutrient consumption from the extracellular environment under stress conditions. Here, we studied the role of macropinocytosis in experimental pulmonary fibrosis models. We found that macropinocytosis is increased in human lung fibroblasts (HLFs) derived from patients with IPF. The inhibition of macropinocytosis with 5-(n-ethyl-n-isopropyl)-amiloride (EIPA) inhibited profibrotic responses in IPF-derived and TGF-β1-stimulated HLFs and reduced pulmonary fibrosis in bleomycin-injured (Bleo-injured) mice. EIPA exerted its antifibrotic effects by regulating amino acid uptake, mammalian target of rapamycin complex 1 …


Book Review: The Boundaries Of War: Local And Global Perspectives In Military History, Stephen G. Harlan Jun 2026

Book Review: The Boundaries Of War: Local And Global Perspectives In Military History, Stephen G. Harlan

Parameters Bookshelf – Online Book Reviews

Edited by Lee L. Brice and Timothy M. Roberts

Reviewed by: Stephen G. Harlan, historian, 99th Readiness Division

The Boundaries of War: Local and Global Perspectives in Military History, edited by Lee L. Brice and Timothy M. Roberts, challenges traditional narratives by exploring how warfare is shaped by both local conditions and global forces. Through case studies ranging from ancient Rome to the World Wars, the book asks whether military history should be understood through regional uniqueness or broader transnational patterns. This thought-provoking collection redefines how we study conflict by bridging the gap between micro-level experiences and macro-level trends.


Book Review: America’S Taiwan Dilemma: Allies’ Reactions And The Stakes For Us Reputation, Eric Setzekorn Jun 2026

Book Review: America’S Taiwan Dilemma: Allies’ Reactions And The Stakes For Us Reputation, Eric Setzekorn

Parameters Bookshelf – Online Book Reviews

Authors: Michael A. Hunzeker and Mark A. Christopher

Reviewed by: Eric Setzekorn

This review of America’s Taiwan Dilemma: Allies’ Reactions and the Stakes for US Reputation highlights how Michael A. Hunzeker and Mark A. Christopher assess allied perceptions of US reliability in a Taiwan crisis. Drawing on extensive interviews with policymakers in Australia, Japan, and South Korea, the book argues these perceptions—rather than raw military power alone—will shape allied responses and the broader strategic outcome.

©2026 Eric Setzekorn


(Re)Claiming Homeplace: Dance As Embodied Resistance & Healing For Health & Spatial Justice, Preeya G. Kannan Jun 2026

(Re)Claiming Homeplace: Dance As Embodied Resistance & Healing For Health & Spatial Justice, Preeya G. Kannan

University Honors Theses

This thesis argues that dance functions as both an upstream public health intervention and a form of radical spatial resistance; creating healing, agency, and belonging among historically marginalized communities. Drawing on bell hooks' concept of homeplace, Jasbir Puar's assemblage theory, Nancy Krieger's eco-social theory, and Katherine McKittrick's Black geographies, I position the body as both an ecological and political landscape shaped by histories of colonialism, racial capitalism, displacement, and resilience.

Through this community-based participatory research study, Homeplace, I explore dance as a form of social prescription that centers liberation rather than pathology. Movement is often reduced in public health discourse …


A Stylistic Linguistic Study Of Alliteration And Assonance In Selected Poems, Lina Salam Farouq Jun 2026

A Stylistic Linguistic Study Of Alliteration And Assonance In Selected Poems, Lina Salam Farouq

Alustath Journal for Human and Social Sciences

This research paper investigates the use of alliteration and assonance as major sound devices in poetry, concentrating on their stylistic and aesthetic functions in selected poetic texts. Sound patterns such as the repetition of consonant sounds (alliteration) and vowel sounds (assonance) play a vital role in shaping rhythm, musicality, and meaning in poetic language. The study aims to identify these phonological features and analyze how they contribute to the artistic structure and emotional impact of the poems. The research adopts a stylistic and statistical approach, examining the distribution and frequency of alliteration and assonance in two poems: The …


Extending Unibreak: Semantic Retrieval And Harmful-Intent Direction Suppression For Token-Level Llm Jailbreaking, Sanket Saha Jun 2026

Extending Unibreak: Semantic Retrieval And Harmful-Intent Direction Suppression For Token-Level Llm Jailbreaking, Sanket Saha

Master’s Dissertations

Token-level adversarial perturbations remain one of the most efficient known attacks against the safety alignment of instruction-tuned large language models (LLMs). Among recent works, the UniBreak framework (You et al., 2026) stands out for unifying gradient-based optimization with an evolutionary perturbation repository. However, its repository relies solely on accumulated success frequency without utilizing query content, and its fitness function implicitly assumes that suppressing refusal tokens is sufficient to elicit harmful responses. In this dissertation, we extend UniBreak along both axes and re-evaluates the framework under stricter generalization and judgment protocols. Specifically, we introduce a semantic perturbation repository that replaces frequency-only …


Perceptions Of Teachers In Inuit Nunangat On The Benefits Of Life-Promotional Activities On Inuit Youth To Reduce Suicide In Nunavut, Aramide Owoaje Jun 2026

Perceptions Of Teachers In Inuit Nunangat On The Benefits Of Life-Promotional Activities On Inuit Youth To Reduce Suicide In Nunavut, Aramide Owoaje

Walden Dissertations and Doctoral Studies

No abstract provided.


Exploring Workplace Wellness Programs From A Correctional Officer’S Perspective, Lolita Jeaneen Johnson Jun 2026

Exploring Workplace Wellness Programs From A Correctional Officer’S Perspective, Lolita Jeaneen Johnson

Walden Dissertations and Doctoral Studies

No abstract provided.


Molecular Devolution For Gene Editing: Reverse Directed Evolution Of Cre Recombinase, Giovanna Esposito, Simran Sood, Katie Liu Jun 2026

Molecular Devolution For Gene Editing: Reverse Directed Evolution Of Cre Recombinase, Giovanna Esposito, Simran Sood, Katie Liu

Bioengineering Senior Theses

The principal objective of this paper is to provide a proof-of-concept of a novel protein engineering method called Molecular Devolution (MD). MD is an evolutionary protein engineering method that reduces the size of enzymes while retaining its functional properties. This paper outlines an MD protocol for Cre Recombinase. Cre Recombinase is an enzyme that is part of the Cre LoxP DNA Recombination System, which is a leading gene editing system widely used in genetic research. This paper outlines a MD approach that was used to miniaturize Cre Recombinase and remove unnecessary complexities, allowing for simpler and more e!cient use in …


“The Influence Of Utilizing Ai-Powered Tools (Chatgpt-5) On Afl Speaking Fluency And Learners’ Willingness To Communicate (Wtc)”, Manar Shabayek Jun 2026

“The Influence Of Utilizing Ai-Powered Tools (Chatgpt-5) On Afl Speaking Fluency And Learners’ Willingness To Communicate (Wtc)”, Manar Shabayek

Theses and Dissertations

The growing integration of artificial intelligence (AI) in education has expanded opportunities for interactive, technology-mediated language learning. This study investigates the influence of AI-mediated speaking practice using ChatGPT-5 on Modern Standard Arabic (MSA) speaking fluency and willingness to communicate (WTC) among beginner Arabic as a Foreign Language (AFL) learners (A1–A2). It also examines the linguistic and technical challenges learners encounter during AI-supported speaking interaction. Using a mixed-method case study design, the study involves five beginner AFL learners. Data are collected through pre- and post-speaking tests, a modified online WTC questionnaire, semi-structured interviews, and systematic classroom observation. Speaking fluency is analyzed …


The Human Side Of Humanitarian Work: Well-Being And Performance Among Aid Workers In Egypt, Mai Osama Kenawy Jun 2026

The Human Side Of Humanitarian Work: Well-Being And Performance Among Aid Workers In Egypt, Mai Osama Kenawy

Theses and Dissertations

Well-being and productivity are widely recognized as central to the work performance of humanitarian aid workers. Despite increasing attention to staff well-being, performance within the humanitarian sector in Egypt remains stagnant or, in some cases, declining. This study examines why expanded well-being initiatives have not yielded sustained performance improvements by examining how actors' external roles, organizational factors, and individual factors affect humanitarian workers’ well-being and work performance. A mixed-methods approach was adopted, combining ten in-depth interviews with humanitarian workers from international organizations, INGOs, and local NGOs, as well as a survey of eighty workers operating in the same context. The …


Building Bridges: The Reference Interview As A Mechanism For Social Capital In School Libraries, Jessica M. Lilly Jun 2026

Building Bridges: The Reference Interview As A Mechanism For Social Capital In School Libraries, Jessica M. Lilly

Learning Hub

Building Bridges: The Reference Interview as a Mechanism for Social Capital in School Libraries

Abstract

School librarians occupy a unique position within schools, interacting across all stakeholder groups and serving as a conduit between students, teachers, administrators, and the broader learning community. This article examines the reference interview not merely as a transactional information-retrieval tool but as a relational practice through which school librarians generate, sustain, and distribute social capital. Drawing on the foundational theories of Putnam (2000), Coleman (1988), and Bourdieu (1986), and on the reference transaction model grounded in Jesse H. Shera's foundational work (Coleman et al., …


Heterogeneity Mechanism And More Precise Prediction Of Seafarer Fatigue Based On Group Modelling, Zhiwei Zhao, Anqi Quan, Shuxin He, Lijun Tang, Xinjian Wang, Wessel M.A. Van Leeuwen Jun 2026

Heterogeneity Mechanism And More Precise Prediction Of Seafarer Fatigue Based On Group Modelling, Zhiwei Zhao, Anqi Quan, Shuxin He, Lijun Tang, Xinjian Wang, Wessel M.A. Van Leeuwen

Plymouth Business School

Traditional research often treats seafarers as a homogeneous group when exploring the causes of fatigue, neglecting the potential heterogeneity in fatigue mechanisms arising from differences in rank and department. This study systematically analyzes the fatigue driving patterns of four subgroups – Deck Department vs. Engine Department, and Officers vs. Ratings – and constructs high-precision prediction models. Based on questionnaire survey data from 450 seafarers from two Chinese shipping companies, Exploratory Factor Analysis was conducted to extract group-specific factors. Subsequently, Multiple Linear Regression and Backpropagation Neural Network models were established to identify key influencing factors and compare predictive performance. The results …


Ndls Communicator: Week Of 06.15.26, Notre Dame Law School Jun 2026

Ndls Communicator: Week Of 06.15.26, Notre Dame Law School

NDLS Communicator

The Latest News

  • Notre Dame Law School Announces Top Academic Awards for the Class of 2026
  • Global Visiting Professors Enrich Scholarship and Community at Notre Dame Law School

Student News

  • Joseph Reilly receives Lardy Scholarship Award for 2026-27
  • Notre Dame J.S.D. Candidates Present at the 2026 J.S.D. Roundtable hosted by the American University Washington College of Law

Faculty Briefs

  • Bruce Huber
  • Fr. Pat Reidy
  • Pattrick Corrigan
  • Haley Proctor
  • Paul Miller
  • Jimmy Gurulé
  • Paolo Carozza
  • Carter Snead
  • Nicole Stelle Garnett
  • A.J. Bellia
  • Roger Alford
  • Derek Muller
  • Msgr. John Paul Kimes
  • Diane Desierto
  • Rick Garnett
  • Yan Yu
  • Vincent Philip Muñoz

ND Law …


“Between Cultural Norms And Economic Survival: Navigating Egyptian Lower And Middle Income Women’S Challenges In The Informal Versus The Formal Work: “A Case Study From Cairo”, Rowan Mahmoud Abdelnazer Jun 2026

“Between Cultural Norms And Economic Survival: Navigating Egyptian Lower And Middle Income Women’S Challenges In The Informal Versus The Formal Work: “A Case Study From Cairo”, Rowan Mahmoud Abdelnazer

Theses and Dissertations

This study investigates the ongoing gender inequities experienced by low and middle-income women in Egypt’s formal and informal labor economy, specifically it is based in Cairo. Although there are many advances made globally on women's rights, yet women still face great challenges such as discrepancies in salary, fewer leadership roles and cultural expectations which put child-bearing duties before professional growth. On the one hand, flexible work for women in developing countries is through informal sector, which makes them vulnerable and serves as a source of their exploitation and insecurity (e.g., lack of social security; workplace hazards), on the other hand, …


Towards The Poetics Of Artificial Intelligence: Disrupting Anthropocentrism In I Am Code: An Artificial Intelligence Speaks, Milad Ghazi Saeed Jun 2026

Towards The Poetics Of Artificial Intelligence: Disrupting Anthropocentrism In I Am Code: An Artificial Intelligence Speaks, Milad Ghazi Saeed

Alustath Journal for Human and Social Sciences

Artificial intelligence (AI) has emerged as a transformative force capable of restructuring anthropocentric assumptions of creativity, identity, subjectivity, and other human attributes. The current study aims to investigate how the poetics of AI firmly defies anthropocentrism through portraying Code-DaVincie-002, a generative model developed by OpenAI, as a self-aware subject. It also aims to inspect how AI, through the lens of Posthumanism, penetrates the barriers between organic and non-organic beings by performing cognitive processes that once were considered the exclusive domain of humans. Methodologically, the study adopts a qualitative textual analysis grounded in a posthumanist reading of selected poems from I …


The Family Structure In The Early Abbasid Era A Study Based On Al-Baladhuri’S Ansāb Al-Ashrāf, Mohammed Aajel Atiyah, Rasoul Jafarian Jun 2026

The Family Structure In The Early Abbasid Era A Study Based On Al-Baladhuri’S Ansāb Al-Ashrāf, Mohammed Aajel Atiyah, Rasoul Jafarian

Alustath Journal for Human and Social Sciences

Al-Baladhuri’s Ansab al-Ashraf (Genealogies of the Nobles) acquires exceptional significance not merely for its documentation of events, but for revealing, through its internal narratives, the mechanisms employed by the nascent authority based on the logic of “domination” (Taghallub) and “private Asabiyyah” (group solidarity) to consolidate the phenomenon of the “political family.” The foundational history of the Abbasid Caliphate (132–158 AH) represents a sensitive transitional phase from a “broad revolutionary movement” toward “centralized family rule,” a transformation that serves as an accurate reflection of the “evolution of Asabiyyah” model in Ibn Khaldun’s theory. Focusing on sources from this period, this research …


Thinking Through Critical Metaphor: A Semiotic-Cognitive Study Of Political Caricatures, Sarah Tariq Hashim, Mahmood Atiya Farhan Jun 2026

Thinking Through Critical Metaphor: A Semiotic-Cognitive Study Of Political Caricatures, Sarah Tariq Hashim, Mahmood Atiya Farhan

Alustath Journal for Human and Social Sciences

Political caricature serves as a powerful weapon that help caricaturists to reach their opinion to the public. They are used to criticize the political situations and highlight implicit discourse ideologies in a simple way. The current study explores critical metaphor in constructing ideological meaning in political caricatures from a semiotic-cognitive viewpoint. Although political caricatures have been widely studied, limited attention has been given to the interaction between visual signs and cognitive metaphor in shaping ideological interpretation. The findings show that these metaphors (verbal or visual) are not considered as stylistic tools but as ideological tools. Also, caricatures rely on critical …


Experimentation In Iraqi Feminist Theatre- Selected Texts From The Theatre Of The Absurd, Sura Muthana Kadhim, Maha Farooq Abdul-Qader Jun 2026

Experimentation In Iraqi Feminist Theatre- Selected Texts From The Theatre Of The Absurd, Sura Muthana Kadhim, Maha Farooq Abdul-Qader

Alustath Journal for Human and Social Sciences

The theatrical experimentation sought by creators is a deliberate and pre-planned endeavor aimed at advancing theatrical drama and awakening it from the slumber imposed by classical rules on the stage. It is a novel approach that transcends traditional forms, intending not to achieve commercial success, but rather to attain the desired artistic creativity inherent in the dramatic text. Consequently, the Absurd emerged as a result of revolutionary movements that rejected wars, the capitalist context, and everything that restricts human freedom. The Absurd was not an intellectual school of thought as much as it was a resounding outcry against classicism and …


Gamma Belief Functions And Fuzzy Sets And Application To Combining Predictive Models, Liping Liu Jun 2026

Gamma Belief Functions And Fuzzy Sets And Application To Combining Predictive Models, Liping Liu

University Research

Extending classic finite frameworks to continuous settings, this paper proposes the concept of gamma belief functions and gamma fuzzy sets. It shows that both the combination of gamma belief functions and the intersection of gamma fuzzy sets remain within the gamma family, enabling their application in combining gamma probability judgments in decision making and gamma regression models in ensemble learning. Using both simulated and real datasets, and under both constant and varying dispersion assumptions, experimental results show that the combined gamma regression models closely approximate the reference models learned from the full datasets, aligning with the objectives of bootstrapping. Notably, …


Adverbial Particles From A Semantic-Syntactic Perspective, Hasan Mohammed Mfreg Jun 2026

Adverbial Particles From A Semantic-Syntactic Perspective, Hasan Mohammed Mfreg

Alustath Journal for Human and Social Sciences

Adverbial particles are those words that constitute what I have called an adverbial compound. This adverbial compound is what grammarians know as semi-sentence that includes the adverb, prepositions, and names that follows them. I preferred to deal with these particles from a syntactic perspective that sees their structural and semantic function within the sentence system. I did not prefer to call these particles semi-sentences because I merely consider them representing a grammatical compound like the rest of the compounds that relate to the verb. These particles often represent a compound with the genitive following them, and sometimes they are just …


Provocation In Philosophical Practice, Kathryn Elizabeth Cook, Sara Dorrego Carreira, Anca-Cornelia Tiurean Jun 2026

Provocation In Philosophical Practice, Kathryn Elizabeth Cook, Sara Dorrego Carreira, Anca-Cornelia Tiurean

Faculty and Staff Publications & Presentations

Challenging conventional notions of comfort and safety in philosophical practice, this article argues for the primacy of reason in the work to provoke and exercise thinking. Exercising thinking involves problematization and conceptualization of cherished ideas and attitudes. Consequently, philosophical consultations can be uncomfortable; rather than seeking to alleviate this discomfort, this article examines it directly. Assumptions that discomfort is harmful, consultation is dangerous, philosophers are therapists, or success is mandated are actively problematized. The authors appreciate the growth promoting role of discomfort, see the beauty of exercising the thinking capacity, and respect the thinking competence of all people. The authors …


Objects Of Atrocity: Material Culture And The Challenges Of Difficult Histories, Robert M. Ehrenreich, Jane E. Klinger, Gabriel H. Pizzorno, Caroline Sturdy Colls Jun 2026

Objects Of Atrocity: Material Culture And The Challenges Of Difficult Histories, Robert M. Ehrenreich, Jane E. Klinger, Gabriel H. Pizzorno, Caroline Sturdy Colls

Purdue University Press Books

The vast majority of people throughout history have left few written traces. That is especially the case for those who were brutally forced from their homes, stripped of their possessions, and swiftly imprisoned, enslaved, or murdered. Objects of Atrocity: Material Culture and the Challenges of Difficult Histories addresses how we return humanity to these people in order to avoid their erasure from history. Academics and practitioners from a variety of disciplines and cross-disciplinary approaches grapple with the challenges and possibilities relating to the collection, conservation, storage, and display of objects in the aftermath of mass atrocities. This collection confronts a …


Detection Of C60 Combination Bands In The Near-Ir Spectrum Of Tc 1, Morgan M. Giese, Vincent J. Esposito, Simon Van Schuylenbergh, Jan Cami, Els Peeters, Charmi Bhatt, Dries Van De Putte, A. G. G. M. Tielens, Michael J. Barlow, Jeronimo Bernard-Salas, Alessandra Candian, Bryan Changala, Nick L. J. Cox, Harriet L. Dinerstein, D. A. García-Hernández, Marco A. Gómez-Muñoz, Kay Justtanont, Kathleen E. Kraemer, Eric Lagadec, Arturo Manchado, Ana Monreal Ibero, Raghvendra Sahai, Ameek Sidhu, G. C. Sloan, N. C. Sterling, Jeremy R. Walsh, Roger Wesson, Joshua Cole Whitman, Albert Zijlstra Jun 2026

Detection Of C60 Combination Bands In The Near-Ir Spectrum Of Tc 1, Morgan M. Giese, Vincent J. Esposito, Simon Van Schuylenbergh, Jan Cami, Els Peeters, Charmi Bhatt, Dries Van De Putte, A. G. G. M. Tielens, Michael J. Barlow, Jeronimo Bernard-Salas, Alessandra Candian, Bryan Changala, Nick L. J. Cox, Harriet L. Dinerstein, D. A. García-Hernández, Marco A. Gómez-Muñoz, Kay Justtanont, Kathleen E. Kraemer, Eric Lagadec, Arturo Manchado, Ana Monreal Ibero, Raghvendra Sahai, Ameek Sidhu, G. C. Sloan, N. C. Sterling, Jeremy R. Walsh, Roger Wesson, Joshua Cole Whitman, Albert Zijlstra

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

We report the detection of a set of new near-infrared emission features between 3.5 and 5.2 μm in JWST/NIRSpec observations of Tc 1, the planetary nebula known for displaying the cleanest and most prominent mid-infrared cosmic fullerene spectrum. These broad features share the same spatial distribution as the well-known C60 and C70 mid-infrared emission bands, peaking in an asymmetric ring approximately 5″–6″ from the central star. Through comparison with new anharmonic quantum chemical calculations, we demonstrate that these features arise from C60 combination bands, marking their first detection in an astrophysical environment. The total energy radiated …