cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supplementary document for Terahertz quantum cascade laser frequency combs with optical feedback - 5904295.pdf
Creators: name: Liao, Xiaoyu
name: Wang, Xing-Guang
name: Zhou, Kang
name: Guan, Wen
name: Li, Ziping
name: ma, xuhong
name: Wang, Chenjie
name: Cao, Juncheng
name: Wang, Cheng
name: Li, Hua
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Lasers and Quantum Electronics

description: The supplement provides more figure data to support our claims in the main paper.
title: Resolving Peak Overlap in HPLC Analysis of Glycerol Oxidation Products by Utilizing Various Detectors: Application to BiVO4 Photoanodes
Creators: name: Kong, Heejung
name: Gupta, Siddharth
name: Mayer, Matthew T.
name: Ng, Eva
name: Mesa, Camilo A.
name: Giménez, Sixto
name: Abdi, Fatwa F.
name: Krol, Roel Van De
name: Favaro, Marco
Publisher: name: Freie Universität Berlin
Year: 2025
Subjects: subject: Alcohols
subject: High-performance liquid chromatography
subject: Photonics
subject: Quantum mechanics
subject: Solution chemistry
classificationCode: 540
subject: Chemie und zugeordnete Wissenschaften

description: Glycerol, often considered a waste byproduct of biodiesel production, holds the potential for conversion into chemicals of varying economic value, such as dihydroxyacetone (DHA) and formic acid (FA). Hence, accurate identification and quantification of glycerol oxidation reaction (GOR) products are crucial for glycerol valorization research and practical deployment. High-performance liquid chromatography (HPLC) is the preferred analytical method for these purposes due to its proficiency in separating and quantifying components in liquid mixtures, even in the presence of diluted solutes. On the other hand, peak overlap in chromatograms, especially among glycerol, DHA, and FA, poses a notable challenge in the analysis of GOR products. This study introduces a quantification method aimed at resolving peak overlaps in HPLC analysis of GOR products. Initially, we examine the optical properties of glycerol and GOR products to identify optimal wavelengths for spectrophotometric HPLC analysis and detection. Subsequently, we propose an algebraic approach to resolve the peak overlap of glycerol, DHA, and FA using various detectors, including the refractive index detector (RID) and the variable wavelength detector (VWD). This method is applied to analyze the GOR products of undoped, nonco-catalyzed nanoporous BiVO4 photoanodes, which have shown an intrinsic catalytic activity toward GOR products in previous studies.
title: Dynamics of organic matter in algal blooms on the Greenland ice sheet
Creators: name: Rossel, Pamela E.
name: Antony, Runa
name: Mourot, Rey
name: Dittmar, Thorsten
name: Anesio, Alexandre M.
name: Tranter, Martyn
name: Benning, Liane G.
Publisher: name: Freie Universität Berlin
Year: 2025
Subjects: subject: Snow and glacial ice algal blooms
subject: Dissolved and particulate organic matter
subject: Carbon dynamics
subject: Fourier-transform ion cyclotron resonance mass spectrometry
subject: Arctic
subject: Greenland ice sheet
classificationCode: 550
subject: Geowissenschaften

description: Surface melting supports the development of pigmented algal blooms on the Greenland Ice Sheet, decreasing albedo and further accelerating melting. The interplay between carbon-fixing algae and carbon-respiring heterotrophic microorganisms ultimately controls the amount and composition of organic matter (OM) and thus the ice and snow color. Yet, the dynamics of microbially-derived OM on the Greenland Ice Sheet remain unclear. To address this knowledge gap, we incubated in situ algae-dominated snow and ice samples under light and dark conditions and characterized the changes in dissolved and particulate OM (DOM and POM) with the help of ultrahigh-resolution Fourier transform ion cyclotron resonance mass spectrometry. We show that glacier ice-algae habitats are dominated by highly unsaturated and aromatic compounds resistant to bio- and photo-degradation. In contrary, snow-algae habitats are enriched in bioavailable and more photosensitive unsaturated aliphatics and sulfur- and phosphorus-containing compounds. In both habitats, light exposure increased water-soluble DOM compounds derived from POM, which accounted for ~ 50–70% of the initial DOM composition. Of the initial DOM, 35–50% were heterotrophically degraded in the dark, while light alone photodegraded 6–16%. The significant accumulation of light-absorbing aromatics from POM and DOM at the end of the ice-algae experiments, underscore the greater impact of glacier ice-algae habitats on altering glacier color and accelerating melting.
Classical ladder functions for Rosen-Morse and curved Kepler-Coulomb systems
Creators: name: Delisle-Doray, L.
name: Hussin, V.
name: Kuru, S.
name: Negro, J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Ladder functions in classical mechanics are defined in a similar way as ladder operators in the context of quantum mechanics. In the present paper, we develop a new method for obtaining ladder functions of one dimensional systems by means of a product of two `factor functions'. We apply this method to the curved Kepler-Coulomb and Rosen-Morse II systems whose ladder functions were not found yet. The ladder functions here obtained are applied to get the motion of the system.
description: 20 pages, 8 figures
MOESM3 of Tarsier Goggles: a virtual reality tool for experiencing the optics of a dark-adapted primate visual system
Creators: name: Gochman, Samuel
name: Morano, Marilyn
name: Naman Goyal
name: Chow, Kristie
name: Cooper, Benjamin
name: Gray, Lauren
name: Guo, Stephanie
name: Hill, Kylie
name: Liao, Stephen
name: Shiyao Peng
name: Seong, Hyun
name: Wang, Alma
name: Yoon, Eun
name: Zhang, Shirley
name: Lobel, Erica
name: Tregubov, Tim
name: Dominy, Nathaniel
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 3. Lesson plan to accompany Tarsier Goggles.
Mimicking a Kerrlike medium in the dispersive regime of second-harmonic generation
Creators: name: Klimov, A. B.
name: Sanchez-Soto, L. L.
name: Delgado, J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We find an effective Hamiltonian describing the process of second-harmonic generation in the far-off resonant limit. We show that the dynamics of the fundamental mode is governed by a Kerrlike Hamiltonian. Some dynamical consequences are examined.
description: 12 pages, 4 figures Submitted to Optics Communications
Additional file 5: of Transcriptomic analysis of different tissue layers in antler growth Center in Sika Deer (Cervus nippon)
Creators: name: Hengxing Ba
name: Datao Wang
name: Yau, Tung
name: Yudong Shang
name: Chunyi Li
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Computational Biology

description: Table S3. Summary of 13,203 gene sequences matched with non-redundancy proteins of three closely related species using BLASTX. (DOCX 14 kb)
title: How Stress Biaxiality Controls Crack Morphology and Apparent Fracture Energy of Dikes and Sills
Creators: name: Guggisberg, Antoine
name: Lebihain, Mathias
name: Moore, Josephine
name: Violay, Marie
Publisher: name: Freie Universität Berlin
Year: 2025
Subjects: subject: dikes and sills
subject: tensile cracks
subject: micromechanisms
subject: fracture mechanics
subject: morphology
classificationCode: 550
subject: Geowissenschaften

description: The emplacement of dikes and sills plays a crucial role in crustal mechanics. The parameter used to describe their resistance to propagation, fracture energy, remains controversial. Here, we show how different stress biaxiality levels experienced by dikes can directly affect the micromechanisms of crack propagation in rocks, consequently impacting fracture energy. We performed controlled tensile crack propagation experiments under opposite stress biaxialities. We connect fracture energy variations monitored through a compliance-based method to crack microstructures observed on post-mortem specimens. Microscopy techniques showed that biaxial tension generates intricate microstructures driven by topological instabilities, such as deflections and branches, to circumnavigate tougher grains. This yields a higher fracture energy, that we attribute to front roughening and bridging mechanisms due to front fragmentation. Bridging toughening is gradual and increase with crack size. This hints at the existence of a scale dependency of fracture energy of dikes also experiencing biaxial tension.
Supplementary document for Efficient helicity control of four-wave mixing in gated graphene - 5550616.pdf
Creators: name: Huang, Di
name: Jiang, Tao
name: Yi, Yangfan
name: Shan, Yuwei
name: Li, yingguo
name: Zhang, Zhihong
name: Liu, Kaihui
name: Liu, Weitao
name: Wu, Shiwei
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Supplemental Document
Nonlinear Lifshitz Photon Theory in Condensed Matter Systems
Creators: name: Du, Yi-Hsien
name: Xu, Cenke
name: Son, Dam Thanh
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present an interacting theory of a $U(1)$ gauge boson with a quadratic dispersion relation, which we call the "nonlinear Lifshitz photon theory.'' The Lifshitz photon is a three-dimensional generalization of the Tkachenko mode in rotating superfluids. Starting from the Wigner crystal of charged particles coupled to a dynamical $U(1)$ gauge field, after integrating out gapped degrees of freedom, we arrive at the Lagrangian for the nonlinear Lifshitz photon. The symmetries of the theory include a global $U(1)$ 1-form symmetry and nonlinearly realized "magnetic" translation and rotation symmetries. The interaction terms in the theory lead to the decay of the Lifshitz photon, the rate of which we estimate. We show that the Wilson loop, which plays the role of the order parameter of the spontaneous breaking of the 1-form global symmetry, deviates from the perimeter law by an additional logarithmic factor. We explore potential connections to other condensed matter systems, with a particular focus on quantum spin ice and ferromagnets. Finally, we generalize our theory to higher dimensions.
Low-Energy Structure of Heisenberg Ferrimagnetic Spin Chains
Creators: name: Yamamoto, Shoji
name: Sakai, Toru
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Static and dynamic structure factors of Heisenberg ferrimagnetic spin chains are numerically investigated. There exist two distinct branches of elementary excitations, which exhibit ferromagnetic and antiferromagnetic aspects. The ferromagnetic feature is smeared out with the increase of temperature, whereas the antiferromagnetic one persists up to higher temperatures. The scattering intensity is remarkably large at lower boundaries of the ferromagnetic and antiferromagnetic spectra. All these observations are consistent with the ferromagnetic-to-antiferromagnetic crossover in the thermal behavior which has recently been reported.
description: 3 pages, 5 PS figures, to appear in J. Phys. Soc. Jpn. Vol. 67, No. 11 (1998)
Leishmaniasis Parasite Segmentation and Classification using Deep Learning
Creators: name: Górriz, Marc
name: Aparicio, Albert
name: Raventós, Berta
name: Vilaplana, Verónica
name: Sayrol, Elisa
name: López-Codina, Daniel
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Leishmaniasis is considered a neglected disease that causes thousands of deaths annually in some tropical and subtropical countries. There are various techniques to diagnose leishmaniasis of which manual microscopy is considered to be the gold standard. There is a need for the development of automatic techniques that are able to detect parasites in a robust and unsupervised manner. In this paper we present a procedure for automatizing the detection process based on a deep learning approach. We train a U-net model that successfully segments leismania parasites and classifies them into promastigotes, amastigotes and adhered parasites.
description: 10th International Conference, AMDO 2018, Palma de Mallorca, Spain, July 12-13, 2018, Proceedings
Integrated photonic-based coronagraphic systems for future space telescopes
Creators: name: Desai, Niyati
name: König, Lorenzo
name: Por, Emiel
name: Juanola-Parramon, Roser
name: Belikov, Ruslan
name: Laginja, Iva
name: Guyon, Olivier
name: Pueyo, Laurent
name: Fogarty, Kevin
name: Absil, Olivier
name: Altinier, Lisa
name: Baudoz, Pierre
name: Bidot, Alexis
name: Bonse, Markus Johannes
name: Bott, Kimberly
name: Brandl, Bernhard
name: Carlotti, Alexis
name: Casewell, Sarah L.
name: Choquet, Elodie
name: Cowan, Nicolas B.
name: Doelman, David
name: Fowler, J.
name: Gebhard, Timothy D.
name: Gutierrez, Yann
name: Haffert, Sebastiaan Y.
name: Herscovici-Schiller, Olivier
name: Hours, Adrien
name: Kenworthy, Matthew
name: Kleisioti, Elina
name: Krasteva, Mariya
name: Landman, Rico
name: Leboulleux, Lucie
name: Mazoyer, Johan
name: Millar-Blanchaer, Maxwell A.
name: Mouillet, David
name: NDiaye, Mamadou
name: Snik, Frans
name: van Dam, Dirk
name: van Gorkom, Kyle
name: van Kooten, Maaike
name: Vaughan, Sophia R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The detection and characterization of Earth-like exoplanets around Sun-like stars is a primary science motivation for the Habitable Worlds Observatory. However, the current best technology is not yet advanced enough to reach the 10^-10 contrasts at close angular separations and at the same time remain insensitive to low-order aberrations, as would be required to achieve high-contrast imaging of exo-Earths. Photonic technologies could fill this gap, potentially doubling exo-Earth yield. We review current work on photonic coronagraphs and investigate the potential of hybridized designs which combine both classical coronagraph designs and photonic technologies into a single optical system. We present two possible systems. First, a hybrid solution which splits the field of view spatially such that the photonics handle light within the inner working angle and a conventional coronagraph that suppresses starlight outside it. Second, a hybrid solution where the conventional coronagraph and photonics operate in series, complementing each other and thereby loosening requirements on each subsystem. As photonic technologies continue to advance, a hybrid or fully photonic coronagraph holds great potential for future exoplanet imaging from space.
description: Conference Proceedings of SPIE: Techniques and Instrumentation for Detection of Exoplanets XI, vol. 12680 (2023)
Additional file 4: of Transcriptomic analysis of different tissue layers in antler growth Center in Sika Deer (Cervus nippon)
Creators: name: Hengxing Ba
name: Datao Wang
name: Yau, Tung
name: Yudong Shang
name: Chunyi Li
Publisher: name: figshare
Year: 2019
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Genetics
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Figure S2. De novo assembly of the reference transcriptome. A) Length distribution of coding and noncoding transcripts across the length bins. Triangles and dots represent the percentages of coding and noncoding transcripts in the length bins, respectively. B) Expression levels displayed differences of 3–4 orders of magnitude. For each tissue layer, transcripts with FPKM ≥0.5 are all replicates. C) In all cases, the coding transcripts (40–50%) are more abundant in the upper ranks of the distribution (Q4) than the non-coding sequences (20–30%). (PDF 468 kb)
Radiation trapping in coherent media
Creators: name: Matsko, A. B.
name: Novikova, I.
name: Scully, M. O.
name: Welch, G. R.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that the effective decay rate of Zeeman coherence, generated in a Rb87 vapor by linearly polarized laser light, increases significantly with the atomic density. We explain this phenomenon as the result of radiation trapping. Our study shows that radiation trapping must be taken into account to fully understand many electromagnetically induced transparency experiments with optically thick media.
Direct ammonia solid oxide fuel cells based on spinel ACo2O4 (A=Zn, Fe, Ni) composite cathodes at intermediate temperature
Creators: name: Zhong, Fulan
name: Li, Zhiyu
name: Luo, Yu
name: Fang, Huihuang
name: Chen, Kongfa
name: Zhou, Chen
name: Chen, Chongqi
name: Lin, Li
name: Jiang, Lilong
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology

description: Direct ammonia solid oxide fuel cell (DA-SOFC) is a promising device to realize high-efficiency NH3-to-power. In this study, we fabricate a series of cobalt-based spinel ACo2O4 (ACO, A = Zn, Fe, Ni) oxide as DA-SOFC cathodes using the citric acid complexing method. We prepare three cobalt-based spinel oxides with different A-site elements, i.e., Zn, Fe, and Ni, to establish the relationships between the valence and active site of ACO spinel oxide. The structural analysis based on XRD, XPS, TEC, and UV-Vis diffuse reflectance confirms that NCO exhibits smaller band gap, higher electronic conductivity, and better compatibility with electrolyte. The electrochemical results indicate that the cathodic surface of NCO containing rich Co3+ and Oads leads to better oxygen reduction reaction (ORR) activity. The maximum power density of the DA-SOFC using NCO cathode reaches 1.06 W·cm−2 at 800°C, superior to those of using ZCO (0.83 W·cm−2) or FCO (0.92 W·cm−2) cathode. Kinetic analysis based on the distribution of relaxation time (DRT) and electrochemical impedance spectroscopy (EIS) indicates OTPB+e−↔OTPB− is rate-limiting.
Surface Casimir densities on branes orthogonal to the boundary of anti-de Sitter spacetime
Creators: name: Saharian, A. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the vacuum expectation value of the surface energy-momentum tensor (SEMT) for a scalar field with general curvature coupling in the geometry of two branes orthogonal to the boundary of anti-de Sitter (AdS) spacetime. For Robin boundary conditions on the branes, the SEMT is decomposed into the contributions corresponding to the self-energies of the branes and the parts induced by the presence of the second brane. The renormalization is required for the first parts only and for the corresponding regularization the generalized zeta function method is employed. The induced SEMT is finite and is free from renormalization umbiguities. For an observer living on the brane, the corresponding equation of state is of the cosmological constant type. Depending on the boundary conditions and on the separation between the branes, the surface energy densities can be either positive or negative. The energy density induced on the brane vanishes in special cases of Dirichlet and Neumann boundary conditions on that brane. The effect of gravity on the induced SEMT is essential at separations between the branes of the order or larger than the curvature radius for AdS spacetime. In the large separation limit the decay of the SEMT, as a function of the proper separation, follows a power law for both massless and massive fields. For parallel plates in Minkowski bulk and for massive fields the fall-off of the corresponding expectation value is exponential.
description: 19 pages, 3 figures, Discussion added
Annealing of defects in Fe after MeV Heavy ion irradiation
Creators: name: Aggarwal, G.
name: Sen, P.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report study of recovery dynamics, followed by in-situ resistivity measurement after 100 MeV oxygen ion irradiation, in cold rolled Fe at 300K. Scaling behavior with microstructural density and temperature of sample have been used to establish stress induced defects formed during irradiation as a new type of sink. The dynamics after irradiation has been shown to be due to migration of defects to two types of sinks i.e. stress induced defect as variable sinks and internal surfaces as fixed sinks. Experimental data obtained under various experimental conditions have been fitted to theoretical curves. Parameters thus obtained from fitting are employed to establish effect of electronic energy loss and temperature on recovery dynamics and stress associated with variable sinks.
description: 12 pages, 7 figures. Europhysics Letter (in press)
Hoch Hinaus: Klettern als Methode zum Empowerment
Creators: name: Steiner, Joane
Publisher: name: Zenodo
Year: 2019

description: In der vorliegenden Bachelorarbeit mit dem Titel «Hoch hinaus – Klettern als Methode zum Empower-ment» hat Joane Steiner einen Diskurs zwischen der Sozialen Arbeit und dem Klettersport geschaffen. Im ersten Teil der Literaturarbeit wird der Frage: «Welche Faktoren machen den Klettersport aus sozi-alpädagogischer Sicht zu einer geeigneten Methode des Empowerments für Kinder und Jugendliche mit einer geistigen Behinderung?» nachgegangen. Unter Einbezug von klettertherapeutischen Ansät-zen einerseits und Grundlagen des Empowerment-Konzeptes andererseits wird aufgezeigt, dass der Klettersport zahlreiche Möglichkeiten bietet, Ressourcen zu fördern. Auf der Grundlage des Salutoge-nese-Modelles wird erläutert, welche Auswirkungen die Stärkung von Ressourcen auf den Alltag haben kann. Der zweite Teil der Arbeit widmet sich der Frage: «In welchem Setting könnte der Klettersport als Me-thode zum Empowerment von Kindern und Jugendlichen mit einer geistigen Behinderung Anwendung finden?». Zur Veranschaulichung von Umsetzungsmöglichkeiten des Empowerments durch den Klet-tersport werden zwei Settings aufgegriffen. Dies ist das schulische Setting und das schulergänzende Setting in Form eines Kompetenzzentrums. Weiter werden die Rahmenbedingungen für eine wirksame Umsetzung erläutert, um den Transfer der theoretischen Abhandlungen in die Praxis möglichst fassbar zu machen. Die Ergebnisse verdeutlichen, dass eine Ergänzung dieser Lern- und Bildungssettings durch handlungs- und erlebnisorientierte Entwicklungsmöglichkeiten wie es der Klettersport bieten könnte, nötig ist, um den vielseitigen Bedürfnissen und Fähigkeiten der Kinder und Jugendlichen mit einer geistigen Behin-derung gerecht zu werden.
description: + Code Diss LU: hslusa basp 2019 + Fussnote: Bachelorarbeit, Hochschule Luzern - Soziale Arbeit, Ausbildungsgang Sozialpädagogik, 2019 + NL-Code: NLLUHSA201909
Quantization of spinor field in the Schwarzschild spacetime and spin sums for solutions of the Dirac equation
Creators: name: Egorov, Vadim
name: Smolyakov, Mikhail
name: Volobuev, Igor
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the problem of canonical quantization of a free massive spinor field in the Schwarzschild spacetime. It is shown that a consistent procedure of canonical quantization of the field can be carried out without taking into account the internal region of the black hole, the canonical commutation relations in the resulting theory hold exactly and the Hamiltonian has the standard form. Spin sums are obtained for solutions of the Dirac equation in the Schwarzschild spacetime.
description: 20 pages, 2 figures. v2: minor revision of the text, figure added, references added
title: Mussel-inspired cross-linking mechanisms enhance gelation and adhesion of multifunctional mucin-derived hydrogels
Creators: name: Degen, George D.
name: Stevens, Corey A.
name: Cárcamo-Oyarce, Gerardo
name: Song, Jake
name: Bej, Raju
name: Tang, Peng
name: Ribbeck, Katharina
name: Haag, Rainer
name: Mckinley, Gareth H.
Publisher: name: Freie Universität Berlin
Year: 2025
Subjects: subject: biomaterials
subject: mucus
subject: catechol-thiol bond
subject: tissue adhesive
subject: antifouling
classificationCode: 540
subject: Chemie und zugeordnete Wissenschaften

description: Mucus supports human health by hydrating, lubricating, and preventing infection of wet epithelial surfaces. The beneficial material properties and bioactivity of mucus stem from glycoproteins called mucins, motivating the development of mucin-derived hydrogels for wound dressings and antifouling coatings. However, these applications require robust gelation and adhesion to a wide range of substrates. Inspired by the chemical cross-linking and water-tolerant adhesion of marine mussel adhesive structures, we use catechol–thiol bonding to drive gelation of native mucin proteins and synthetic mucin-inspired polymers, forming soft, adhesive hydrogels that can be coated onto diverse surfaces. The gelation dynamics and adhesive properties can be systematically tuned by varying the hydrogel composition, polymer architecture, and thiol availability, with gelation timescales adjustable from seconds to hours, and values of elastic modulus, failure stress, and debonding work spanning orders of magnitude. We demonstrate the functionality of these gels in two applications: as tissue adhesives, using porcine skin as a proxy for human skin, and as bioactive surface coatings to prevent bacterial colonization. The results highlight the potential of catechol–thiol cross-linking as a versatile platform for engineering multifunctional glycoprotein hydrogels with applications in wound repair and antimicrobial surface engineering.
Building open education ecosystems to facilitate the adoption and adaptation of computational and data-centric tools across undergraduate biology education
Creators: name: LaMar, Drew
name: Rook, Deborah
name: Prescott, Sarah
name: Donovan, Sam
Publisher: name: QUBES Educational Resources
Year: 2024

description: The OEE-RCN is an NSF-funded Research Coordination Network working at the intersection of Open Science and Open Education Resources (OER) with the goal of lowering barriers to adopting computational and data-centric tools in biology undergraduate education. Four open education ecosystems (OEEs) will be designed as stewardship communities that establish, support, and incubate diverse collections of resources addressing the complex ecosystem of support required to meet this goal. While distinct in their computational contexts, the OEEs share cross-cutting themes that address well documented barriers to classroom implementation.
Induced superconductivity in Fermi arcs
Creators: name: Faraei, Zahra
name: Jafari, S. A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: When the interface of a superconductor (SC) with Weyl semimetal (WSM) supports Fermi arcs, the chirality blockade eliminates the induction of superconductivity into the bulk. This leaves the Fermi arc states as the only low-energy degrees of freedom in the proximity problem. Therefore the SC|WSM system will be a platform to probe transport properties that only involve the Fermi arcs. With a boundary condition that flips the spin at the boundary, we find a $Z_2$ protected Bogoliubov Fermi contour (BFC) around which the Bogoliubov quasi-particles disperse linearly. The resulting BFC and excitations around it leave a distinct $T^2$ temperature dependence in their contribution to specific heat. Furthermore, the topologically protected BFC being a Majorana Fermi surface gives rise to a zero-bias peak the strength of which characteristically depends on the length of Fermi arc and tunneling strength. For the other BC that flips the chirality at the interface, instead of BFCs we have Bogoliubov- Weyl nodes whose location depends on the tunneling strength.
Eleven Competing Phases in the Heisenberg-Gamma (J$Γ$) Ladder
Creators: name: Avakian, Sebastien J.
name: Sørensen, Erik S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The spin-orbit generated $Γ$ interaction is known to induce strong frustration and to be significant in realistic models of materials. To gain an understanding of the possible phases that can arise from this interaction, it is of considerable interest to focus on a limited part of parameter space in a quasi one-dimensional model where high precision numerical results can be obtained. Here we study the Heisenberg-Gamma (J$Γ$) ladder, determining the complete zero temperature phase diagram by analyzing the entanglement spectrum (ES) and energy susceptibility. A total of 11 different phases can be identified. Two of the phases, the antiferromagnetic Gamma (A$Γ$) and ferromagnetic Gamma (F$Γ$) phases, have previously been observed in the Kitaev-Gamma ladder, demonstrating that the A$Γ$-phase is a symmetry protected topological phase (SPT) protected by $TR\times \mathcal{R}_{b}$ symmetry, the product of time-reversal ($TR$) and $π$ rotation around the $b$-axis ($\mathcal{R}_{b}$), while the F$Γ$-phase is related to a rung-singlet phase through a local unitary transformation. Three other phases, $Υ$, $Ω$ and $δ$ show no conventional order, a doubling of the entanglement spectrum and for the $Υ$ and $Ω$-phases a gap is clearly present. The $δ$-phase has a significantly smaller gap and displays incommensurate correlations, with a peak in the static structure factor, $S(k)$ continuously shifting from $k/π\mathord{=}2/3$ to $k\mathord{=}π$. In the $Ω$-phase we find pronounced edge-states consistent with a SPT phase protected by the same $TR\times \mathcal{R}_{b}$ symmetry as the A$Γ$-phase. The precise nature of the $Υ$ and $δ$-phases is less clear.
description: 25 pages, 13 figures
Nucleation on top of islands in epitaxial growth
Creators: name: Heinrichs, S.
name: Rottler, J.
name: Maass, Ph.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We develop a theory for nucleation on top of islands in epitaxial growth based on the derivation of lifetimes and rates governing individual microscopic processes. These processes are strongly affected by the additional step edge barrier E_S for descending atoms. If the dissociation times of unstable clusters can be neglected, the theory predicts that for small critical nuclei of size i<=2 the nucleation is governed by fluctuations, during which by chance i+1 atoms are present on the island. For large critical nuclei i>=3 by contrast, the nucleation process can be described in a mean-field type manner, which for large E_S corresponds to the approach developed by Tersoff et al. [Phys. Rev. Lett. 72, 266 (1994)]. In both the fluctuation-dominated and the mean-field case, various scaling regimes are identified, where the typical island size at the onset of nucleation shows a power law in dependence on the adatom diffusion rates, the incoming atom flux, and the step edge crossing probability exp(-E_S/k_B T). For the case where the dissociation rates of metastable clusters enter the problem as additional parameters, we set up a semi-analytical approach based on novel rate equations, which can easily be solved numerically. The results obtained from the theory are in good agreement with Monte Carlo data. Implications for various applications are pointed out.
description: 24 pages, 10 figures
Data-driven Material Models for Atomistic Simulation
Creators: name: Wood, Mitchell A.
name: Cusentino, Mary Alice
name: Wirth, Brian D.
name: Thompson, Aidan P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The central approximation made in classical molecular dynamics simulation of materials is the interatomic potential used to calculate the forces on the atoms. Great effort and ingenuity is required to construct viable functional forms and find accurate parameterizations for potentials using traditional approaches. Machine-learning has emerged as an effective alternative approach to develop accurate and robust interatomic potentials. Starting with a very general model form, the potential is learned directly from a database of electronic structure calculations and therefore can be viewed as a multiscale link between quantum and classical atomistic simulations. Risk of inaccurate extrapolation exists outside the narrow range of time- and length-scales where the two methods can be directly compared. In this work, we use the Spectral Neighbor Analysis Potential (SNAP) and show how a fit can be produced with minimal interpolation errors which is also robust in extrapolating beyond training. To demonstrate the method, we have developed a new tungsten-beryllium potential suitable for the full range of binary compositions. Subsequently, large-scale molecular dynamics simulations were performed of high energy Be atom implantation onto the (001) surface of solid tungsten. The new machine learned W-Be potential generates a population of implantation structures consistent with quantum calculations of defect formation energies. A very shallow (<2nm) average Be implantation depth is predicted which may explain ITER diverter degradation in the presence of beryllium.
description: 5 Figures, 2 Tables
Supplementary document for Optical-field-induced surface nanobumps in near infrared laser direct cleaning of nanoparticles on silicon - 5938365.pdf
Creators: name: Zhang, Shuowen
name: Wu, Ling
name: Tang, Jiyong
name: Kovalenko, Volodymyr S
name: Fan, Lisha
name: Yao, Jianhua
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Figures S1, S2, S3, S4 used in the manuscript.
Forward Invariance in Neural Network Controlled Systems
Creators: name: Harapanahalli, Akash
name: Jafarpour, Saber
name: Coogan, Samuel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We present a framework based on interval analysis and monotone systems theory to certify and search for forward invariant sets in nonlinear systems with neural network controllers. The framework (i) constructs localized first-order inclusion functions for the closed-loop system using Jacobian bounds and existing neural network verification tools; (ii) builds a dynamical embedding system where its evaluation along a single trajectory directly corresponds with a nested family of hyper-rectangles provably converging to an attractive set of the original system; (iii) utilizes linear transformations to build families of nested paralleletopes with the same properties. The framework is automated in Python using our interval analysis toolbox $\texttt{npinterval}$, in conjunction with the symbolic arithmetic toolbox $\texttt{sympy}$, demonstrated on an $8$-dimensional leader-follower system.
Additional file 3: of Transcriptomic analysis of different tissue layers in antler growth Center in Sika Deer (Cervus nippon)
Creators: name: Hengxing Ba
name: Datao Wang
name: Yau, Tung
name: Yudong Shang
name: Chunyi Li
Publisher: name: figshare
Year: 2019
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology
subject: Computational Biology

description: Table S2. Statistics of transcript assembly in the pipeline. (DOCX 16 kb)
Sentiment Classification of Customer Reviews about Automobiles in Roman Urdu
Creators: name: Khan, Moin
name: Malik, Kamran
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Text mining is a broad field having sentiment mining as its important constituent in which we try to deduce the behavior of people towards a specific item, merchandise, politics, sports, social media comments, review sites etc. Out of many issues in sentiment mining, analysis and classification, one major issue is that the reviews and comments can be in different languages like English, Arabic, Urdu etc. Handling each language according to its rules is a difficult task. A lot of research work has been done in English Language for sentiment analysis and classification but limited sentiment analysis work is being carried out on other regional languages like Arabic, Urdu and Hindi. In this paper, Waikato Environment for Knowledge Analysis (WEKA) is used as a platform to execute different classification models for text classification of Roman Urdu text. Reviews dataset has been scrapped from different automobiles sites. These extracted Roman Urdu reviews, containing 1000 positive and 1000 negative reviews, are then saved in WEKA attribute-relation file format (arff) as labeled examples. Training is done on 80% of this data and rest of it is used for testing purpose which is done using different models and results are analyzed in each case. The results show that Multinomial Naive Bayes outperformed Bagging, Deep Neural Network, Decision Tree, Random Forest, AdaBoost, k-NN and SVM Classifiers in terms of more accuracy, precision, recall and F-measure.
description: This is a pre-print of a contribution published in Advances in Intelligent Systems and Computing (editors: Kohei Arai, Supriya Kapoor and Rahul Bhatia) published by Springer, Cham. The final authenticated version is available online at: https://doi.org/10.1007/978-3-030-03405-4_44
Quantum degeneracy and interaction effects in spin-polarized Fermi-Bose mixtures
Creators: name: Vichi, L.
name: Inguscio, M.
name: Stringari, S.
name: Tino, G. M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Various features of spin-polarized Fermi gases confined in harmonic traps are discussed, taking into account possible perspectives of experimental measurements. The mechanism of the expansion of the gas is explicitly investigated and compared with the one of an interacting Bose gas. The role of interactions on the equilibrium and non equilibrium behaviour of the fermionic component in Fermi-Bose mixtures is discussed. Special emphasis is given to the case of potassium isotopes mixtures.
description: 5 pages, 3 figures, revtex, to be published in J. Phys. B
MOESM1 of Muscle glycogen level and occurrence of acid meat in commercial hybrid pigs are regulated by two low-frequency causal variants with large effects and multiple common variants with small effects
Creators: name: Liu, Xianxian
name: Zhou, Lisheng
name: Xie, Xianhua
name: Wu, Zhongzi
name: Xiong, Xinwei
name: Zhang, Zhiyan
name: Yang, Jie
name: Xiao, Shijun
name: Zhou, Mengqing
name: Ma, Junwu
name: Huang, Lusheng
Publisher: name: figshare
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Additional file 1: Table S1. Primers used for sequencing the PRKAG3 gene. Fifteen pairs of primers were used to sequence the porcine PRKAG3 gene and identify variants.
title: Alaska Region Interim Metadata Guide
Creators: name: Alaska Region Data Stewardship Team
Publisher: name: United States Fish and Wildlife Service
publisherIdentifier: https://ror.org/04k7dar27
publisherIdentifierScheme: ROR
Year: 2020
Subjects: alaska
data management
metadata

description: This manual describes the INTERIM requirements and best practices for the creation of high-quality and consistent metadata records for projects and products from the Alaska Region (AK-Region) of the US Fish and Wildlife Service (USFWS). These metadata requirements conform to the standardized metadata format agreed upon by the Alaska Region Data Stewardship Team (DST). This metadata ensures that AK-Region projects and products are discoverable, accessible, and usable. It is assumed that this manual will be continually revised and ultimately replaced following the development of the Regional Ddata Management System.
2012 Organic Farm Performance in Minnesota
Creators: name: Nordquist, Dale
name: Moynihan, Meg
name: Dvergsten, Ron
name: Nordquist, Dale
name: Moynihan, Meg
name: Dvergsten, Ron
Publisher: name: Unknown
Year: 2013
Subjects: Crop Production/Industries
Farm Management

description: This report summarizes individual farm financial results for organic FBM participants in the Minnesota Organic Farm Business Management Project for 2012 and provides comparisons to previous years. The report includes whole-farm information as well as costs and returns for individual enterprises. The year-end analysis of the individual farms was completed by Minnesota FBM instructors or by Minnesota Farm Management Associations. A total of 56 organic farms reported data for 2012. Of those, 37 were "completely organic," meaning that all of the agricultural products produced on the farm were produced under organic certification. The others were "split operations," which have some certified organic and some conventional production. The Whole Farm Results section of this report summarizes only the completely organic farms, whereas the crop and dairy enterprise reports include data on the organic production from both completely organic and split operations.
Dynamical network stability analysis of multiple biological ages provides a framework for understanding the aging process
Creators: name: Pridham, Glen
name: Rutenberg, Andrew D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Widespread interest in non-destructive biomarkers of aging has led to a curse of plenty: a multitude of biological ages that each proffers a 'true' health-adjusted age of an individual. While each measure provides salient information on the aging process, they are each univariate, in contrast to the "hallmark" and "pillar" theories of aging which are explicitly multidimensional, multicausal and multiscale. Fortunately, multiple biological ages can be systematically combined into a multidimensional network representation. The interaction network between these biological ages permits analysis of the multidimensional effects of aging, as well as quantification of causal influences during both natural aging and, potentially, after anti-aging intervention. The behaviour of the system as a whole can then be explored using dynamical network stability analysis which identifies new, efficient biomarkers that quantify long term resilience scores on the timescale between measurements (years). We demonstrate this approach using a set of 8 biological ages from the longitudinal Swedish Adoption/Twin Study of Aging (SATSA). After extracting an interaction network between these biological ages, we observed that physiological age, a proxy for cardiometabolic health, serves as a central node in the network, implicating it as a key vulnerability for slow, age-related decline. We furthermore show that while the system as a whole is stable, there is a weakly stable direction along which recovery is slow - on the timescale of a human lifespan. This slow direction provides an aging biomarker which correlates strongly with chronological age and predicts longitudinal decline in health - suggesting that it estimates an important driver of age-related changes.
description: 65 pages including supplemental
Ab-initio prediction of the electronic and optical excitations in polythiophene: isolated chains versus bulk polymer
Creators: name: van der Horst, J. -W.
name: Bobbert, P. A.
name: de Jong, P. H. L.
name: Michels, M. A. J.
name: Brocks, G.
name: Kelly, P. J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We calculate the electronic and optical excitations of polythiophene using the GW approximation for the electronic self-energy, and include excitonic effects by solving the electron-hole Bethe-Salpeter equation. Two different situations are studied: excitations on isolated chains and excitations on chains in crystalline polythiophene. The dielectric tensor for the crystalline situation is obtained by modeling the polymer chains as polarizable line objects, with a long-wavelength polarizability tensor obtained from the ab-initio polarizability function of the isolated chain. With this model dielectric tensor we construct a screened interaction for the crystalline case, including both intra- and interchain screening. In the crystalline situation both the quasi-particle band gap and the exciton binding energies are drastically reduced in comparison with the isolated chain. However, the optical gap is hardly affected. We expect this result to be relevant for conjugated polymers in general.
description: 15 pages including 4 figures; to appear in Phys. Rev. B, 6/15/2000