cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effect of Familiarity on Visual Attention and Choice at the Point of Purchase
Creators: name: Gidlöf, Kerstin
name: Lingonblad, Martin
name: Wallin, Annika
Publisher: name: SAGA - International Workshop on Solutions for Automatic Gaze Data Analysis : Proceedings
Year: 2015

description: SAGA - International Workshop on Solutions for Automatic Gaze Data Analysis : Proceedings, SAGA 2015: 2nd International Workshop on Solutions for Automatic Gaze Data Analysis, Bielefeld, 29.-30. September 2015
Take a Bite of the Reality Sandwich: Revisiting the Security of Progressive Message Authentication Codes
Creators: name: Wagner, Eric
name: Bauer, Jan
name: Henze, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Message authentication guarantees the integrity of messages exchanged over untrusted channels. However, to achieve this goal, message authentication considerably expands packet sizes, which is especially problematic in constrained wireless environments. To address this issue, progressive message authentication provides initially reduced integrity protection that is often sufficient to process messages upon reception. This reduced security is then successively improved with subsequent messages to uphold the strong guarantees of traditional integrity protection. However, contrary to previous claims, we show in this paper that existing progressive message authentication schemes are highly susceptible to packet loss induced by poor channel conditions or jamming attacks. Thus, we consider it imperative to rethink how authentication tags depend on the successful reception of surrounding packets. To this end, we propose R2-D2, which uses randomized dependencies with parameterized security guarantees to increase the resilience of progressive authentication against packet loss. To deploy our approach to resource-constrained devices, we introduce SP-MAC, which implements R2-D2 using efficient XOR operations. Our evaluation shows that SP-MAC is resilient to sophisticated network-level attacks and operates as resources-conscious and fast as existing, yet insecure, progressive message authentication schemes.
description: ACM WiSec'22
An effect-theoretic reconstruction of quantum theory
Creators: name: van de Wetering, John
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An often used model for quantum theory is to associate to every physical system a C*-algebra. From a physical point of view it is unclear why operator algebras would form a good description of nature. In this paper, we find a set of physically meaningful assumptions such that any physical theory satisfying these assumptions must embed into the category of finite-dimensional C*-algebras. These assumptions were originally introduced in the setting of effectus theory, a categorical logical framework generalizing classical and quantum logic. As these assumptions have a physical interpretation, this motivates the usage of operator algebras as a model for quantum theory.
 In contrast to other reconstructions of quantum theory, we do not start with the framework of generalized probabilistic theories and instead use effect theories where no convex structure and no tensor product needs to be present. The lack of this structure in effectus theory has led to a different notion of pure maps. A map in an effectus is pure when it is a composition of a compression and a filter. These maps satisfy particular universal properties and respectively correspond to `forgetting' and `measuring' the validity of an effect.
 We define a pure effect theory (PET) to be an effect theory where the pure maps form a dagger-category and filters and compressions are adjoint. We show that any convex finite-dimensional PET must embed into the category of Euclidean Jordan algebras. Moreover, if the PET also has monoidal structure, then we show that it must embed into either the category of real or complex C*-algebras, which completes our reconstruction.
description: 20+5 pages. V4: Journal version V3: complete rewrite. Changed name of the paper from the original 'Reconstruction of quantum theory from universal filters' to reflect a change of presentation
Study of a measure of efficiency as a tool for applying the principle of least effort to the derivation of the Zipf and the Pareto laws
Creators: name: Kaabouchi, A. El
name: Machu, F. X.
name: Cocks, J.
name: Wang, R.
name: Zhu, Y. Y.
name: Wang, Q. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The principle of least effort is believed to be a universal rule for living systems. Its application to the derivation of the power law probability distributions of living systems has long been challenging. Recently, a measure of efficiency was proposed as a tool of deriving Zipf s and Pareto s laws directly from the principle of least effort. The present work is a further investigation of this efficiency measure from a mathematical point of view. The aim is to get further insight into its properties and usefulness as a metric of performance. We address some key mathematical properties of this efficiency such as its sign, uniqueness and robustness. We also look at the relationship between this measure and other properties of the system of interest such as inequality and uncertainty, by introducing a new method for calculating non-negative continuous entropy.
description: 25 pages, 5 figures
Assignments to sheaves of pseudometric spaces
Creators: name: Robinson, Michael
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 55N05, 18F20

description: An assignment to a sheaf is the choice of a local section from each open set in the sheaf's base space, without regard to how these local sections are related to one another. This article explains that the consistency radius -- which quantifies the agreement between overlapping local sections in the assignment -- is a continuous map. When thresholded, the consistency radius produces the consistency filtration, which is a filtration of open covers. This article shows that the consistency filtration is a functor that transforms the structure of the sheaf and assignment into a nested set of covers in a structure-preserving way. Furthermore, this article shows that consistency filtration is robust to perturbations, establishing its validity for arbitrarily thresholded, noisy data.
Real world research in product evaluation and sustainabable development to reach scale
Creators: name: Murcott, Susan
name: Asher, Jeff
name: Frey, Dan
name: Goentzel, Jarrod
name: Green, Jennifer
name: Sanyal, Bish
Publisher: name: The University of British Columbia
Year: 2015

description: Low-income consumers aspire to a better life that humanitarian products offer. International aid agencies, non-governmental organizations, governments and social entrepreneurs promote and disseminate millions of products to alleviate poverty. But many of these products fail to deliver -- either to perform consistently, or if they survive in the marketplace, they fail to reach scale. Preconditions to impact, sustained use and scale are rigorous product evaluations that are trusted, affordable and comprehensible. Massachusetts Institute of Technology (MIT) launched the Comprehensive Initiative on Technology Evaluation (MIT-CITE), a five-year USAID-funded project to develop a methodology, called the “3S’s” which has guided the 2014 CITE Household Water Filter (HWF) Evaluation in Ahmedabad, India. Three expert sub-groups investigated different dimensions of the HWF product ecosystem: • Suitability (S1) Team • S1-Lab: Technical Performance at Consumer Reports in Yonkers, New York. • S1-India: Technical Performance of water filters in Ahmedabad, India households • Scalability Team – evaluation of the commercial HWF product supply chain and capacity to scale up in India based on availability, affordability and aftermarket indicators. • Sustainability Team – integrating social, economic, behavioral and product usability criteria. Findings and Lessons Learned: CITE developed a decision support tool for users and institutional purchasers of HWF products targeted to low-income consumers. Using a methodology patterned after Consumer Reports, we have done a comparative, multi-objective evaluation of more than 100+ HWF products in Ahmedabad. Results cover three product categories: particle removal filters, gravity non-electric water filters and reverse osmosis systems. Findings are discussed.
Systemische Identifizierung genetischer Ursachen der VATER/VACTERL-Assoziation und isolierter anorektaler Malformationen
Creators: name: Thiem, Corina Elisabeth
Publisher: name: Universitäts- und Landesbibliothek Bonn
Year: 2024
Subjects: subject: VATER/VACTERL-Assoziation
subject: ARM
subject: Krankheitsgene
subject: MIP
subject: FOXF1
subject: HSPA6
subject: HAAO
subject: KYNU
subject: VATER/VACTERL association
subject: ddc:610

description: Das Akronym der VATER/VACTERL-Assoziation definiert das seltene, gleichzeitige Auftreten von Wirbeldefekten (V), anorektalen Fehlbildungen (A), Herzfehlern (C), tracheoösophagealen Fisteln inklusive oder ohne Ösophagusatresie (TE), Nieren (R)- und Extremitätenfehlbildungen (L). Für eine vollständige Begriffsdefinition sind Fehlbildungen in drei Organsystemen notwendig. Eine VATER/VACTERL-like Situation besteht bei zwei gleichzeitig auftretenden, oben beschriebenen Anomalien.
 Anorektale und kloakale Malformationen (ARM) können sowohl isoliert als auch in bis zu 60 % der Fälle gemeinsam mit anderen Fehlbildungen vorkommen. Das Krankheitsspektrum reicht bis zu komplex ausgeprägten Malformationen, welche operativ korrigiert werden müssen. Der genetische Einfluss der Kandidatengene FOXF1, HSPA6, HAAO und KYNU auf die VATER/VACTERL-Assoziation und anorektalen Malformationen war bis dato weitgehend unbekannt. Ziel der Arbeit war die Genuntersuchung in einer großen Patientengruppe mittels paralleler Re-Sequenzierung unter Anwendung der „Molekular Inversion Probes (MIP)“.
 Es konnten zwei als krankheitsverursachend vorhergesagte Varianten in dem Kandidatengen FOXF1 identifiziert werden. FOXF1 wurde bereits bei Patienten mit alveolärer Kapillardysplasie und einem Patienten mit ARM vorbeschrieben, im Mausmodell konnte ein FOXF1-Einfluss auf die Entwicklung der Atemwege, des Magen-Darm-Traktes und Herz-Kreislauf-Systems nachgewiesen werden. Die gefundenen FOXF1-Genvarianten der zwei Patienten mit einer isolierter ARM und einer TE mit kardialen Defekten wurden per Sanger-Sequenzierung bestätigt, genauso wie deren Vererbung durch die gesunden Mütter.
 Unsere MIP-Analyse legt nahe, dass die Gene FOXF1, HSPA6, HAAO und KYNU in der Fehlbildungsgenese der VATER/VACTERL-Assoziation und isolierter ARM keine große Rolle spielen. Wir konnten die Benignität der überwiegenden Zahl an Einzelnukleotid-Polymorphismen nachweisen. Bei dieser schwerwiegenden Erkrankung mit hoher Rate an Totgeburten und Sterbefällen innerhalb des ersten Lebensjahres sind daher Folgeuntersuchungen für eine tiefgehendes Verständnis der Fehlbildungsentstehung enorm wichtig.
The TopFlavor scheme in the context of $W'$ searches at LHC
Creators: name: Calabrese, Roberta
name: De Iorio, Agostino
name: Fiorillo, Damiano F. G.
name: Iorio, Alberto Orso Maria
name: Morisi, Stefano
name: Miele, Gennaro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Many extensions of the Standard Model predict the existence of new charged or neutral gauge bosons, with a wide variety of phenomenological implications depending on the model adopted. The search for such particles is extensively carried through at the Large Hadron Collider (LHC), and it is therefore of crucial importance to have for each proposed scenario quantitative predictions that can be matched to experiments. In this work we focus on the implications of one of these models, the TopFlavor Model, proposing a charged $\text{W}^\prime$ boson that has preferential couplings to the third generation fermions. We compare such predictions to the ones from the so called Sequential Standard Model (SSM), that is used as benchmark, being one of the simplest and most commonly considered models for searches at the LHC. We identify the parameter space still open for searches at the LHC, and in particular we show that the cross section for the processes $pp \to \text{W}^\prime \to τν$ and $pp \to \text{W}^\prime \to tb$ can be up to two orders of magnitude smaller with respect to the SSM, depending on the free parameters of the model, like the particle mass and its width. This study makes the case for further searches at the LHC, and shows how a complete and systematic model independent analysis of $\text{W}^\prime$ boson phenomenology at colliders is essential to provide guidance for future searches.
description: 11 pages, 3 figures
Power-law Portfolios
Creators: name: Rosenzweig, Jan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Portfolio Management (q-fin.PM)
subject: Risk Management (q-fin.RM)
subject: FOS: Economics and business

description: Portfolio optimization methods suffer from a catalogue of known problems, mainly due to the facts that pair correlations of asset returns are unstable, and that extremal risk measures such as maximum drawdown are difficult to predict due to the non-Gaussianity of portfolio returns. \\ In order to look at optimal portfolios for arbitrary risk penalty functions, we construct portfolio shapes where the penalty is proportional to a moment of the returns of arbitrary order $p>2$. \\ The resulting component weight in the portfolio scales sub-linearly with its return, with the power-law $w \propto μ^{1/(p-1)}$. This leads to significantly improved diversification when compared to Kelly portfolios, due to the dilution of the winner-takes-all effect.\\ In the limit of penalty order $p\rightarrow\infty$, we recover the simple trading heuristic whereby assets are allocated a fixed positive weight when their return exceeds the hurdle rate, and zero otherwise. Infinite order power-law portfolios thus fall into the class of perfectly diversified portfolios.
Applications of the close-limit approximation: horizonless compact objects and scalar fields
Creators: name: Annulli, Lorenzo
name: Cardoso, Vitor
name: Gualtieri, Leonardo
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The ability to model the evolution of compact binaries from the inspiral to coalescence is central to gravitational wave astronomy. Current waveform catalogues are built from vacuum binary black hole models, by evolving Einstein equations numerically and complementing them with knowledge from slow-motion expansions. Much less is known about the coalescence process in the presence of matter, or in theories other than General Relativity. Here, we explore the Close Limit Approximation as a powerful tool to understand the coalescence process in general setups. In particular, we study the head-on collision of two equal-mass, compact but horizonless objects. Our results show the appearance of ``echoes'' and indicate that a significant fraction of the merger energy goes into these late-time repetitions. We also apply the Close Limit Approximation to investigate the effect of colliding black holes on surrounding scalar fields. Notably, our results indicate that observables obtained through perturbation theory may be extended to a significant segment of the merger phase, where in principle only a numerical approach is appropriate.
description: 16 pages, 4 figures. Matches published version in CQG
5S implementation
Creators: name: Windell, Jacob
Publisher: name: Unknown
Year: 2017

description: ASS implementation plan should be utilized to improve workplace environments,
and can be applied to any scenario in which worker utility or machine utility is not
currently being maximized. Compiled in this report is an overview of what exactly may
be done to improve upon missed opportunities in the Applied Engineering Center at the
University of Southern Indiana campus. The primary focus of improvements will be to
the lathes and mills located within the Applied Engineering Center. Central focus will be
to increase efficiency for the operator(s), reduce excess product or tools on the machines,
and aim to improve workplace ergonomics to allow smooth tool transitions while
reducing worker fatigue. Other improvements should be made to the surrounding work
areas which include: floor space, storage vessels, and improving upon safety standards.
Stinespring's construction as an adjunction
Creators: name: Parzygnat, Arthur J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Operator Algebras (math.OA)
subject: Mathematical Physics (math-ph)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 47A20 (Primary), 18D05, 46L05, 47A67, 81R15 (Secondary)

description: Given a representation of a unital $C^*$-algebra $\mathcal{A}$ on a Hilbert space $\mathcal{H}$, together with a bounded linear map $V:\mathcal{K}\to\mathcal{H}$ from some other Hilbert space, one obtains a completely positive map on $\mathcal{A}$ via restriction using the adjoint action associated to $V$. We show this restriction forms a natural transformation from a functor of $C^*$-algebra representations to a functor of completely positive maps. We exhibit Stinespring's construction as a left adjoint of this restriction. Our Stinespring adjunction provides a universal property associated to minimal Stinespring dilations and morphisms of Stinespring dilations. We use these results to prove the purification postulate for all finite-dimensional $C^*$-algebras.
description: 33 pages + appendices
Differential graded algebras, Steenrod cup-one products, binomial operations, and Massey products
Creators: name: Porter, Richard D.
name: Suciu, Alexander I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 16E45, 55N45, 13F20, 46L87, 55P62, 55S05, 55S10, 55S30, 55U10

description: Motivated by the construction of Steenrod cup-$i$ products in the singular cochain algebra of a space and in the algebra of non-commutative differential forms, we define a category of binomial cup-one differential graded algebras over the integers and over prime fields of positive characteristic. The Steenrod and Hirsch identities bind the cup-product, the cup-one product, and the differential in a package that we further enhance with a binomial ring structure arising from a ring of integer-valued rational polynomials. This structure allows us to define the free binomial cup-one differential graded algebra generated by a set and derive its basic properties. It also provides the context for defining restricted triple Massey products, which have a smaller indeterminacy than the classical ones, and hence, give stronger homotopy type invariants.
description: 45 pages; accepted for publication in Topology and its Applications
A PHYSIOLOGICAL APPROACH TO EVALUATE THE ANTIOXIDANT CAPACITY OF THE DIFFERENT MATRIXES OF GRAPEFRUIT
Creators: name: Molino, Silvia
name: Verri, Manuela
name: Dossena, Maurizia
name: Pérez-Burillo, Sergio
name: Buonocore, Daniela
name: Rufián-Henares, José
Publisher: name: Journal of International Society of Antioxidants in  Nutrition & Health
Year: 2016

description: Grapefruit is rich in polyphenols, which exhibit antioxidant and antiflammatory properties. The study aimed at evaluating the influence of an enzymatic in vitro gastrointestinal digestion (GAR method1), followed by fermentation, on the antioxidant capacity of the different matrixes of grapefruit. This physiological-resembling approach allows to extract antioxidants from the following grapefruit parts: zest, rind, pulp, and juice (obtained from red and white grapefruit), including two commercial juices. The analyses were conducted on the fresh soluble fractions obtained after in vitro digestion and fermentation (potentially absorbable fraction), and on the lyophilized solid fractions obtained after fermentation (non-absorbable fraction). The antioxidant capacity was evaluated with ABTS, FRAP and Indigo Carmin Hydroxyls, AAPH, and Reduction methods. The results showed that rind possesses the highest antioxidant capacity, probably due to the elevate concentration of naringin. Of note, the soluble fractions derived from digestion possess higher scavenging activity rather than the soluble fractions from fermentation, which on the contrary have a considerable reducing ability. The insoluble fractions from fermentation showed no antioxidant activity in any of the assays. These data were corroborated through the analysis of polyphenols and their metabolites by means of  mass spectrometry, in both digested and fermented soluble fractions.
description: Journal of International Society of Antioxidants in  Nutrition & Health, Vol 3, No 4 (2016)
The filtered Ogus realisation of motives
Creators: name: Chiarellotto, Bruno
name: Lazda, Christopher
name: Mazzari, Nicola
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G35, 14F42

description: We construct the (filtered) Ogus realisation of Voevodsky motives over a number field $K$. This realisation extends the functor defined on $1$-motives by Andreatta, Barbieri-Viale and Bertapelle. As an illustration we note that the analogue of the Tate conjecture holds for K3 surfaces.
description: final accepted version
On the convergence of sequences in $\mathbb{R}^+$ through weighted geometric means via multiplicative calculus and application to intuitionistic fuzzy numbers
Creators: name: Yavuz, Enes
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics

description: We define weighted geometric mean method of convergence for sequences in $\mathbb{R}^+$ by using multiplicative calculus and obtain necessary and sufficient conditions under which convergence of sequences in $\mathbb{R}^+$ follows from convergence of their weighted geometric means. We also obtain multiplicative analogues of Schmidt type slow oscillation condition and Landau type two-sided condition for the convergence in particular. Besides, we introduce the concepts of $^{\oplus}$convergence, $^{\otimes}$convergence, $(\bar{N},p)-^{\oplus}$convergence, $(\bar{G},p)-^{\otimes}$convergence for sequences of intuitionistic fuzzy numbers (IFNs) and apply the aforementioned conditions to achieve convergence in intuitionistic fuzzy number space. Examples of sequences are also given to illustrate the proposed methods of convergence.
description: publication information is added, final version
ENTREPRENEURIAL FUTURE SKILLS: A REVIEW OF POSITIVE ENTREPRENEURIAL BEHAVIOR COMPETENCIES FOR THE NEXT GENERATION
Creators: name: CHRISTOFFEL M. O. MINTARDJO
name: IMELDA W. J. OGI
name: GEORGE M. V. KAWUNG
name: JACLINE I. SUMUAL
name: STEEVA Y. L. TUMANGKENG
name: VICTORINA Z. TIRAYOH
name: INDRIE D. PALANDENG
Publisher: name: Zenodo
Year: 2025
Subjects: Positive Entrepreneurial Behavior, Future Skills, Positive Psychology, Systematic Literature Review, Entrepreneurial Competencies.

description: Abstract

The dynamic evolution of industries of the future demands a reconfiguration of entrepreneurial competencies. As emerging generations—Gen X, Y, Z, and Alpha—confront increasingly volatile, uncertain, complex, and ambiguous (VUCA) environments, there is a pressing need to revisit the foundations of entrepreneurial behavior from a positive psychology perspective. This study systematically reviews the literature surrounding future entrepreneurial skills, emphasizing the role of Positive Entrepreneurial Behavior (PEB) as a critical framework. Building upon core theories of entrepreneurship, entrepreneurial behavior, entrepreneurial traits, positive psychology, and positive organizational behavior, this review synthesizes how future competencies intersect with psychological strengths such as resilience, optimism, hope, and self-efficacy. Conceptual frameworks from industries of the future further inform the necessary transformation of entrepreneurial skills for the next generation. A systematic literature review methodology was employed, identifying and analyzing peer-reviewed journal articles published over the last two decades. Inclusion criteria centered on studies addressing entrepreneurial competencies, positive psychological constructs, and generational shifts. The findings reveal five core clusters of future entrepreneurial competencies driven by positive behavior: adaptive resilience, opportunity optimism, creative problem-solving, sustainable innovation orientation, and inclusive leadership. Moreover, the analysis highlights that PEB operates as both a psychological catalyst and a structural enabler for entrepreneurial flourishing in future industries. The synthesis underscores the emergence of PEB as an integrative theoretical bridge between traditional entrepreneurial frameworks and the evolving demands of a digitalized, sustainable, and human-centric economic landscape. Recommendations for educational, organizational, and policy interventions are proposed to nurture these competencies across generational cohorts. Positive Entrepreneurial Behavior represents a transformative paradigm essential for equipping future entrepreneurs to thrive amidst accelerating technological, environmental, and societal changes. Future research should aim to operationalize PEB constructs into measurable competencies applicable across diverse entrepreneurial ecosystems.
An intersectional approach to understanding underrepresented students' sustainability goals
Creators: name: Godwin, Allison
name: Klotz, Leidy
Publisher: name: The University of British Columbia
Year: 2015

description: The lack of diversity in engineering is a persistent issue which hinders the development of more sustainable engineering solutions. We hope to help address this problem by investigating the sustainability-related career outcome expectations among engineering students who identify with groups underrepresented in the field. This research examines the intersectionality of students’ race, ethnicity, and gender, which can help us understand how unique individuals pursue sustainability goals through the cultures of engineering. We investigate this sustainability-related beliefs among underrepresented groups using data from a national (U.S.) survey in which we collected responses about these variables of interest from students in introductory college courses. The sample was stratified by institution type and the number of enrolled students. In total we received responses from 6,772 individuals enrolled at 50 institutions. We analyze the data using descriptive statistics and multinomial logistic and linear regression. Our results suggest that showing students the connection between certain sustainability issues and engineering careers could help as we strive to diversify participation in engineering. For example, white females, black females are less likely than other groups to want to address climate change in their careers while their while male counterparts are more likely than other groups to want to address the same issue. These results highlight ways in which some populations may be more excited about engineering careers or less based on topics emphasized. This results may help bring a broader range of engineers would likely bring new ideas and ways of thinking to engineering for sustainability.
Emergent dark states from superradiant dynamics in multilevel atoms in a cavity
Creators: name: Orioli, A. Piñeiro
name: Thompson, J. K.
name: Rey, A. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the collective decay dynamics of atoms with a generic multilevel structure (angular momenta $F\leftrightarrow F'$) coupled to two light modes of different polarization inside a cavity. In contrast to two-level atoms, we find that multilevel atoms can harbour eigenstates that are perfectly dark to cavity decay even within the subspace of permutationally symmetric states (collective Dicke manifold). The dark states arise from destructive interference between different internal transitions and are shown to be entangled. Remarkably, the superradiant decay of multilevel atoms can end up stuck in one of these dark states, where a macroscopic fraction of the atoms remains excited. This opens the door to the preparation of entangled dark states of matter through collective dissipation useful for quantum sensing and quantum simulation. Our predictions should be readily observable in current optical cavity experiments with alkaline-earth atoms or Raman-dressed transitions.
description: 22+9 pages, 14+4 figures (like published version, except for minor editorial corrections)
Direct observation of the dead-cone effect in QCD
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In particle collider experiments, elementary particle interactions with large momentum transfer produce quarks and gluons (known as partons) whose evolution is governed by the strong force, as described by the theory of quantum chromodynamics (QCD). These partons subsequently emit further partons in a process that can be described as a parton shower which culminates in the formation of detectable hadrons. Studying the pattern of the parton shower is one of the key experimental tools for testing QCD. This pattern is expected to depend on the mass of the initiating parton, through a phenomenon known as the dead-cone effect, which predicts a suppression of the gluon spectrum emitted by a heavy quark of mass $m_{\rm{Q}}$ and energy $E$, within a cone of angular size $m_{\rm{Q}}$/$E$ around the emitter. Previously, a direct observation of the dead-cone effect in QCD had not been possible, owing to the challenge of reconstructing the cascading quarks and gluons from the experimentally accessible hadrons. We report the direct observation of the QCD dead cone by using new iterative declustering techniques to reconstruct the parton shower of charm quarks. This result confirms a fundamental feature of QCD. Furthermore, the measurement of a dead-cone angle constitutes a direct experimental observation of the non-zero mass of the charm quark, which is a fundamental constant in the standard model of particle physics.
description: 20 pages, 2 captioned figure, 1 table, authors from page 15, published version, figures at this http://alice-publications.web.cern.ch/node/7198
ResearchBox 3705, 'Cognitive Failure and Affect', https://researchbox.org/3705
Creators: name: Ysabel Guevarra
name: Nadyanna Majeed
name: Andree Hartanto
name: Eva Mohamed Hisham
Publisher: name: Zenodo
Year: 2024

description: Box title: 'Cognitive Failure and Affect'   Reference: Guevarra YA, Majeed NM, Hisham EM, Hartanto A. (2024) 'Positive and Negative Affect Differentially Predict Individual Differences and Intra-Individual Changes in Daily Cognitive Failures in Younger and Older Adults'. Brain Sciences. V14(12):1259. doi: 10.3390/brainsci14121259Note: this backup was created automatically by a ResearchBox bot
Functional beverages enriched with polyphenolic compounds nano encapsulated
Creators: name: Gea-Botella, Sara
name: Berenguer, María
name: Maciá, Alicia
name: Vegara, Salud
name: Quesada, Olga
name: Barrajón-Catalán, Enrique
name: Carvajal, Micaela
name: Valero, Manuel
name: Saura, Domingo
name: Martí, Nuria
Publisher: name: Journal of International Society of Antioxidants in  Nutrition & Health
Year: 2016

description: In the current study, the encapsulation of bioactive polyphenolic compounds present at a pomegranate extract (Punica granatum L.) is realised through the formation and use of nanoparticles as vehicles in order to select an optimal lipid/extract relation. In the formation of lipids, four different kinds of phospholipids have been used, as well as two different concentrations of a pomegranate extract, which contains the following bioactive compounds: punicalagins, punicalins, gallic acid and ellagic acid.
 The stability of the different polyphenolic compounds is assessed through a previous study realised in a simple matrix. It was done on the purpose of seeing how encapsulation and presence of vegetal aquaporins influences the stability of the bioactive compounds already mentioned.
 In this way, the samples were stored for 21 days under different pH and temperature conditions. It was observed that the most favourable conditions for reaching bioactive compounds stability were pHs  3.5 – 4.5 and temperatures 4 – 25ºC. Lipids most effective in both the liposome formation and also the highest percentage of bioactive compounds encapsulated were 80H and 85G.
 Keywords: Pomegranate, lipids, aquaporin, encapsulation, bioactive compounds and stability.
description: Journal of International Society of Antioxidants in  Nutrition & Health, Vol 3, No 4 (2016)
Operadic categories as a natural environment for Koszul duality
Creators: name: Batanin, Michael
name: Markl, Martin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 18D10, 18D20, 18D50 (Primary), 55U40, 55P48 (secondary)

description: This is the first paper of a series which aims to set up the cornerstones of Koszul duality for operads over operadic categories. To this end we single out additional properties of operadic categories under which the theory of quadratic operads and their Koszulity can be developped, parallel to the traditional one by Ginzburg and Kapranov. We then investigate how these extra properties interact with discrete operadic (op)fibrations, which we use as a powerful tool to construct new operadic categories from old ones. We pay particular attention to the operadic category of graphs, giving a full description of this category (and its variants) as an operadic category, and proving that it satisfies all the additional properties.
 Our present work provides an answer to a question formulated in Loday's last talk in 2012:``What encodes types of operads?''. In the second and third papers of our series we continue Loday's program by answering his second question: ``How to construct Koszul duals to these objects?'', and proving Koszulity of some of the most relevant operads.
description: 46 pages. Final version
Magnetization-tuned topological quantum phase transition in MnBi2Te4 devices
Creators: name: Ge, Jun
name: Liu, Yanzhao
name: Wang, Pinyuan
name: Xu, Zhiming
name: Li, Jiaheng
name: Li, Hao
name: Yan, Zihan
name: Wu, Yang
name: Xu, Yong
name: Wang, Jian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recently, the intrinsic magnetic topological insulator MnBi2Te4 has attracted enormous research interest due to the great success in realizing exotic topological quantum states, such as the quantum anomalous Hall effect (QAHE), axion insulator state, high-Chern-number and high-temperature Chern insulator states. One key issue in this field is to effectively manipulate these states and control topological phase transitions. Here, by systematic angle-dependent transport measurements, we reveal a magnetization-tuned topological quantum phase transition from Chern insulator to magnetic insulator with gapped Dirac surface states in MnBi2Te4 devices. Specifically, as the magnetic field is tilted away from the out-of-plane direction by around 40-60 degrees, the Hall resistance deviates from the quantization value and a colossal, anisotropic magnetoresistance is detected. The theoretical analyses based on modified Landauer-Buttiker formalism show that the field-tilt-driven switching from ferromagnetic state to canted antiferromagnetic state induces a topological quantum phase transition from Chern insulator to magnetic insulator with gapped Dirac surface states in MnBi2Te4 devices. Our work provides an efficient means for modulating topological quantum states and topological quantum phase transitions.
Simultaneous analysis of melatonin, quercetin and resveratrol in grapes using liquid chromatography with fluorescence detection
Creators: name: Teresa, Arroyo
name: Maria, Aller
name: Victoria, De Los Ángeles
name: Laura, Gaforio
name: Alba, Vargas
name: M. Teresa, De Andrés
Publisher: name: Journal of International Society of Antioxidants in  Nutrition & Health
Year: 2016

description: Phenolic compounds ubiquitous in all edible plants are an essential part of the human diet and have great interest owing to its antioxidant properties and pharmacological activity. Polyphenol content of grapes is influenced by environmental and post-harvesting conditions, but also genotype plays an important role in the variation. An analytical method was developed for the quantification of melatonin, quercetin and resveratrol using reversed-phase HPLC with fluorescence detection. 35 varieties of grapes were analyzed. The analysis of these components from grape skin was performed by a liquid-solid extraction with ethyl acetate solvent. Quantifiable amounts to these compounds were proved. Characters like grape type (wine, table, wild), color, density and skin thickness had shown significant differences. Melatonin concentrations oscillated between 17-304 nM and the higher values are associated to the wild varieties with blue-black color and thin skin. Quercetin was founded in values from 40 to 110 mM and highlighted in wild grapes with thin skin and dark color. Resveratrol showed quantities between 5-13 µM. Vinificacion grapes, associated to blue-dark colour and thick skin, were the richest in this compound. In all tested grapes highlighted Trincadeira Preta and Cuatendrá varieties, which presented the highest levels to the studied compounds
description: Journal of International Society of Antioxidants in  Nutrition & Health, Vol 3, No 4 (2016)
VINE SHOOTS FROM PORTUGUESE VINEYARDS AS A SUSTAINABLE SOURCE OF POLYPHENOLS: EXTRACTION AND CHARACTERIZATION
Creators: name: Moreira, Manuela
name: Barroso, Maria Fátima
name: CVETANOVIĆ, ALEKSANDRA
name: RADOJKOVIĆ, MARIJA
name: SVARC-GAJIĆ, JAROSLAVA
name: Morais, Simone
name: DELERUE-MATOS, Cristina
Publisher: name: Journal of International Society of Antioxidants in  Nutrition & Health
Year: 2016

description: Vine-shoots are an important waste in all viticulture areas that should be re-used with innovative applications [1,2]. The aim of the present study was to characterize the vine shoots from different Portuguese grape varieties (Touriga Nacional - TN and Tinta Roriz - TR) with a view to exploit their potential as a source of phenolic compounds. For this purpose, microwave-assisted extraction (MAE), subcritical water extraction (SWE) and conventional extraction (CE) were tested and compared in order to evaluate their efficiency for the recovery of the main polyphenols in vine shoots. The phenolic composition and antioxidant activity from the obtained extracts were quantified by liquid chromatography with UV detection and spectrophotometric analyses. Among the evaluated extraction methods, the highest yields were obtained by the MAE and SWE techniques. Concerning the differences in the vine shoots varieties, TR is richer in total phenolic compounds (32.9 ± 1.8 mgGAE/g) and total flavonoids (20.7 ± 0.4 mgEE/g), as well as in antioxidant activity. HPLC analysis enable to identify nine different polyphenols, with gallic and caffeic acids, catechin and epicatechin being the main contributors to the phenolic composition.
description: Journal of International Society of Antioxidants in  Nutrition & Health, Vol 3, No 4 (2016)
Die Lernzielmatrix für das Forschungsdatenmanagement (LZM FDM): Anwendungen am Beispiel von wissenschaftlicher Bibliothek und Hochschule
Creators: name: Düvel, Nina
name: Altemeier, Franziska
Publisher: name: Zenodo
Year: 2024
Subjects: Lernzielmatrix
Forschungsdatenmanagement

description: Diese Folien wurden für eine Hands-on Session zur Lernzielmatrix Forschungsdatenamanagement (LZM FDM) bei der Veranstaltung FDM@Campus am 24.09.2024 in Göttingen erstellt (eine ähnliche Version der Folien wurde am 06.06.2024 in der #Freiraum24-Session der 112. BiblioCon präsentiert, siehe BIB Opus Publikationsserver):

Unser Joint Lab ist aktiv in die Erstellung der dritten Ausgabe der LZM FDM eingebunden. Wir stellen die Lernzielmatrix FDM zunächst im Detail vor und geben den Teilnehmenden Gelegenheit, sie zu erkunden. Anschließend erarbeiten und diskutieren wir in Gruppen, wie verschiedene Akteur*innen von der LZM profitieren und diese bei verschiedenen Zielgruppen anwenden können.
Circular motion around a regular rotating Hayward black hole
Creators: name: Khan, Saeed Ullah
name: Ren, Jingli
name: Rayimbaev, Javlon
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 83Cxx

description: In this article, we explore the geodesics motion of neutral test particles and the process of energy extraction from a regular rotating Hayward black hole. We analyse the effect of spin, as well as deviation parameter $g$, on ergoregion, event horizon and static limit of the said black hole. By making use of geodesic equations on the equatorial plane, we determine the innermost stable circular and photon orbits. Moreover, we investigate the effective potentials and effective force to have information on motion and the stability of circular orbits. On studying the negative energy states, we figure out the energy limits of Penrose mechanism. Using Penrose mechanism, we found expression for the efficiency of energy extraction and observed that both spin and deviation parameters, contribute to the efficiency of energy extraction. Finally, the obtained results are compared with that acquired from Kerr and braneworld Kerr black holes.
description: 17 pages, 9 figures
University of Bahrain 2025 Workshop: Enhancing Research Visibility and Impact through Persistent Identifiers (PIDs)
Creators: name: Mostafa, Mohamad
Publisher: name: Zenodo
Year: 2025
Subjects: Open Science
Arab World
PID
DOI
Metadata
Research Impact
Visibility
Open Metadata

description: This workshop will explore the pivotal role of Persistent Identifiers (PIDs), particularly Digital Object Identifiers (DOIs), in increasing the visibility and discoverability of research outputs. By delving into the impact of DOIs, research data management, FAIR principles, and open research practices, the session will empower researchers to enhance the reach of their work and track its influence in the academic community. Participants will learn how to integrate PIDs and open metadata into their research infrastructure to promote open science and support long-term sustainability, in line with UNESCO's Recommendation on Open Science.

Mohamad Mostafa delivered this workshop virtually on 29th of April 2025.
ResearchBox 3724, 'Schema Model of Self-Control', https://researchbox.org/3724
Creators: name: Max Blaise
name: Alex Bertrams
Publisher: name: Zenodo
Year: 2024

description: Box title: 'Schema Model of Self-Control'   Reference: Max Blaise; Alex Bertrams, 'The mental association between subjective vitality, energy conservation motivation, and cognitive effort motivation according to the schema model of self-control', Current Psychologyhttps://doi.org/10.1007/s12144-024-06994-3Note: this backup was created automatically by a ResearchBox bot
A Session Type System for Asynchronous Unreliable Broadcast Communication
Creators: name: Kouzapas, Dimitrios
name: Gutkovas, Ramunas Forsberg
name: Voinea, A. Laura
name: Gay, Simon J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: Session types are formal specifications of communication protocols, allowing protocol implementations to be verified by typechecking. Up to now, session type disciplines have assumed that the communication medium is reliable, with no loss of messages. However, unreliable broadcast communication is common in a wide class of distributed systems such as ad-hoc and wireless sensor networks. Often such systems have structured communication patterns that should be amenable to analysis by means of session types, but the necessary theory has not previously been developed. We introduce the Unreliable Broadcast Session Calculus, a process calculus with unreliable broadcast communication, and equip it with a session type system that we show is sound. We capture two common operations, broadcast and gather, inhabiting dual session types. Message loss may lead to non-synchronised session endpoints. To further account for unreliability we provide with an autonomous recovery mechanism that does not require acknowledgements from session participants. Our type system ensures soundness, safety, and progress between the synchronised endpoints within a session. We demonstrate the expressiveness of our framework by implementing Paxos, the textbook protocol for reaching consensus in an unreliable, asynchronous network.
Calibrating the scan statistic with size-dependent critical values: heuristics, methodology and computation
Creators: name: Walther, Guenther
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: It is known that the scan statistic with variable window size favors the detection of signals with small spatial extent and there is a corresponding loss of power for signals with large spatial extent. Recent results have shown that this loss is not inevitable: Using critical values that depend on the size of the window allows optimal detection for all signal sizes simultaneously, so there is no substantial price to pay for not knowing the correct window size and for scanning with a variable window size. This paper gives a review of the heuristics and methodology for such size-dependent critical values, their applications to various settings including the multivariate case, and recent results about fast algorithms for computing scan statistics.