cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
HORMONAL NETWORK CONTROLLING THE OVULE DEVELOPMENT IN ARABIDOPSIS THALIANA
Creators: name: BENCIVENGA, STEFANO
Publisher: name: Universit� degli Studi di Milano
Year: 2011

description: During my Ph.D., I have focused my research to uncover the molecular network controlling ovule development in Arabidopsis thaliana. This thesis is organized in an introduction part, in which I have described what it is known about ovule development including the description of the role of hormones. Then, in chapter 1, I have described the research performed to study the role of auxin and auxin polar transport in ovule development. Chapter 2 is focalized on the study that I have performed to identify and characterized genes involved in auxin biosynthesis during ovule development in Arabidopsis. Chapter 3 described the results obtained manipulating the cytokinin amount in ovule. Cytokinins have an antagonistic role respect to auxin during differentiation and development. I have studied cytokinins pathway using specific markers line and by genetic approaches. In the work proposed in the Chapter 4 the studies on the influence of auxin, cytokinin and transcription factor on ovule development, converge in one single line of investigation and a model for ovule organogenesis is proposed. In the last chapter the final discussion is presented with a general overview of the results and the suggestion of future experiments that could be performed in the near future.
Nonlinear supersymmetry in the quantum Calogero model
Creators: name: Correa, Francisco
name: Lechtenfeld, Olaf
name: Plyushchay, Mikhail
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: It is long known that the rational Calogero model describing n identical particles on a line with inverse-square mutual interaction potential is quantum superintegrable. We review the (nonlinear) algebra of the conserved quantum charges and the intertwiners which relate the Liouville charges at couplings g and g+1. For integer values of g, these intertwiners give rise to additional conserved charges commuting with all Liouville charges and known since the 1990s. We give a direct construction of such a charge, the unique one being totally antisymmetric under particle permutations. It is of order n(n-1)(2g-1)/2 in the momenta and squares to a polynomial in the Liouville charges. With a natural Z_2 grading, this charge extends the algebra of conserved charges to a nonlinear supersymmetric one. We provide explicit expressions for intertwiners, charges and their algebra in the cases of two, three and four particles.
description: 1+21 pages; v2: minor corrections, typos in eq.(5.18) fixed, 3 refs. added, published version
Anomalous Fermi surface in FeSe seen by Shubnikov-de Haas oscillation measurements
Creators: name: Terashima, Taichi
name: Kikugawa, Naoki
name: Kiswandhi, Andhika
name: Choi, Eun-Sang
name: Brooks, James S.
name: Kasahara, Shigeru
name: Watashige, Tatsuya
name: Ikeda, Hiroaki
name: Shibauchi, Takasada
name: Matsuda, Yuji
name: Wolf, Thomas
name: Böhmer, Anna E.
name: Hardy, Frédéric
name: Meingast, Christoph
name: Löhneysen, Hilbert v.
name: Suzuki, Michi-To
name: Arita, Ryotaro
name: Uji, Shinya
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have observed Shubnikov-de Haas oscillations in FeSe. The Fermi surface deviates significantly from predictions of band-structure calculations and most likely consists of one electron and one hole thin cylinder. The carrier density is in the order of 0.01 carriers/ Fe, an order-of-magnitude smaller than predicted. Effective Fermi energies as small as 3.6 meV are estimated. These findings call for elaborate theoretical investigations incorporating both electronic correlations and orbital ordering.
description: 6 pages, 6 figures, 1 table, published in Phys. Rev. B
Effects of intercomponent couplings on the appearance of time-reversal symmetry breaking fermion quadrupling state in two-component London models
Creators: name: Maccari, Ilaria
name: Babaev, Egor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A detection of bosonic metallic state that breaks the $Z_2$ time-reversal symmetry has been recently reported in Ba$_{1-x}$K$_x$Fe$_2$As$_2$ with a doping level $x \approx 0.8$. This is a metallic state of fermionic quadruplets that breaks time-reversal symmetry. As such, it has no condensate of Cooper pairs but has a long-range order between fermionic quartets. In the present manuscript, we investigate the emergence of this phase in a two-component London model via Monte Carlo simulations as a function of various intercomponent couplings.
SOCS1 mutation subtypes predict divergent outcomes in diffuse large B-Cell lymphoma (DLBCL) patients
Creators: name: Schif, Birgit
name: Lennerz, Jochen K.
name: Kohler, Christian
name: Bentink, Stefan
name: Kreuz, Markus
name: Melzner, Ingo
name: Ritz, Olga
name: Trümper, Lorenz
name: Loeffler, Markus
name: Spang, Rainer
name: Möller, Peter
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: Lymphoma, DLBCL, SOCS1 mutation
subject: 500 Naturwissenschaften
subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin
subject: Adolescent
subject: Adult
subject: Aged
subject: Aged, 80 and over
subject: Child
subject: Child, Preschool
subject: DNA Mutational Analysis
subject: Female
subject: Gene Deletion
subject: Gene Expression Profiling
subject: Humans
subject: Kaplan-Meier Estimate
subject: Lymphoma, Large B-Cell, Diffuse/pathology
subject: Male
subject: Middle Aged
subject: Mutation
subject: Mutation, Missense
subject: Outcome Assessment (Health Care)
subject: Polymorphism, Single Nucleotide
subject: Prognosis
subject: Suppressor of Cytokine Signaling Proteins/genetics
subject: Tumor Markers, Biological/genetics
subject: Young Adult

description: Suppressor of cytokine signaling 1 (SOCS1) is frequently mutated in primary mediastinal and diffuse large B-cell lymphomas (DLBCL). Currently, the prognostic relevance of these mutations in DLBCL is unknown. To evaluate the value of the SOCS1 mutation status as a prognostic biomarker in DLBCL patients, we performed full-length SOCS1 sequencing in tumors of 154 comprehensively characterized DLBCL patients. We identified 90 SOCS1 mutations in 16% of lymphomas. With respect to molecular consequences of mutations, we defined two distinct subtypes: those with truncating (major) and those with non-truncating mutations (minor), respectively. The SOCS1 mutated subgroup or the minor/major subtypes cannot be predicted on clinical grounds; however, assignment of four established gene-expression profile-based classifiers revealed significant associations of SOCS1 major cases with germinal center and specific pathway activation pattern signatures. Above all, SOCS1 major cases have an excellent overall survival, even better than the GCB-like subgroup. SOCS1 minor cases had a dismal survival, even worse than the ABC gene signature group. The SOCS1 mutation subsets retained prognostic significance in uni- and multivariate analyses. Together our data indicate that assessment of the SOCS1 mutation status is a single gene prognostic biomarker in DLBCL.
Discrete Dirac reduction of implicit Lagrangian systems with abelian symmetry groups
Creators: name: Abella, Álvaro Rodríguez
name: Leok, Melvin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Numerical Analysis (math.NA)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37J39, 65P10, 70G65, 70H33

description: This paper develops the theory of discrete Dirac reduction of discrete Lagrange-Dirac systems with an abelian symmetry group acting on the configuration space. We begin with the linear theory and, then, we extend it to the nonlinear setting using retraction compatible charts. We consider the reduction of both the discrete Dirac structure and the discrete Lagrange-Pontryagin principle, and show that they both lead to the same discrete Lagrange-Poincaré-Dirac equations. The coordinatization of the discrete reduced spaces relies on the notion of discrete connections on principal bundles. At last, we demonstrate the method obtained by applying it to a charged particle in a magnetic field, and to the double spherical pendulum.
description: 31 pages, 4 figures
GENOTYPE X ENVIRONMENT INTERACTION IN GRAPES RIPENING METABOLIC TRAITS
Creators: name: BOGICEVIC, MARINA
Publisher: name: Universit� degli Studi di Milano
Year: 2014

description: Objectives of the first part of research program were the effect of some environmental and physiological aspects on the intensity of flavonoid synthesis. The trial was carried out during the 2011 growing season in the commercial vineyard of the Plantaze, Podgorica (Montenegro). Two grapevine cultivars were compared: Vranac and Cabernet Sauvignon. The following experimental treatments were compared: early leaf removal (flowering time), cluster thinning (veraison time) and combination of both treatments. The early defoliation reduced yield per vine in Cabernet Sauvignon and Vranac. In Cabernet Sauvignon defoliation initially delayed berry growth. In cultivar Vranac defoliation did not modify the berry growth and berry weight. In the treatments ?defoliated-thinned? is observed reduction of the cluster weight, berry weight and berry number per cluster. Early defoliation and cluster thinning in both varieties raised the concentration of anthocyanins and proanthocyanidins. The enhanced contents of these compounds per berry in variety Vranac is the result of increased synthesis. The objective of second study was to improve the knowledge of the eco-physiological basis of the genotype x environmental interaction. The experimental plan included the study of the Sangiovese grapes, a variety by a particular responsiveness to changing environmental conditions, and Cabernet Sauvignon grapes, a so called international cultivar characterized by more stable features. It was operated within the framework of Appellations of Origin Bolgheri (Tuscany coast), Montalcino (Tuscany Apennines) and Misano (Romagna coast). The experiment was conducted during two growing seasons (2011-2012) through grape development and ripening from fruit set to ripe stage. Since carotenoids are the precursors to C13-norisoprenoid aroma compounds in wine, relationship between carotenoid and norisoprenoid levels in grapes was investigated. In the first phase of berry ripening, before veraison, sites with greater global solar radiation (Montalcino and Bolgheri) showed positive correlation with the intensity of total carotenoids accumulation. Location Montalcino was also characterized by a greater water stress. Correlation between carotenoids accumulation prior to veraison and accumulation of norisoprenoids were not observed. Sangiovese showed a greater reactivity to the environment compared to Cabernet Sauvignon. The norisoprenoids levels in variety Sangiovese largely varied between different years and sites. The synthesis of norisoprenoids appears to be more related to the specific ecophysiological conditions that occur during maturation, rather than to the carotenoids content at veraison.
'NANOSTRUCTURED TIO2 AS A MULTIFUNCTIONAL MATERIAL: FROM PHOTOCATALYSIS TO BIOMEDICAL APPLICATIONS'
Creators: name: NALDONI, ALBERTO
Publisher: name: Universit� degli Studi di Milano
Year: 2010

description: The results presented in this Ph.D. thesis are focused on the use of nanostructured titanium dioxide for environmental remediation and for biomedical applications. In the first part, the importance of the choice of a suitable and reliable synthetic route for obtaining nanomaterials with tailored properties for a specific application is highlighted. Several research projects on the design and sol-gel synthesis of TiO2 nanoparticles have been carried out. The experimental evidences suggest that sol-gel synthesis allow tailoring the morphological and superficial properties of the samples. The latter are strictly correlated to the photocatalytic activity of TiO2 home-made samples for the degradation of pollutants in air (e.g., toluene and nitrogen oxides). Moreover, exploiting the capability of sol-gel synthesis, the light absorption of the photocatalyst is extended from UV to the visible spectrum via a nitrogen doping. The morphology, bulk superficial properties, and photocatalytic activity of TiO2 nanoparticle are also influenced by the direct physical/chemical effects of ultrasounds. Interestingly, using ultrasonic spray pyrolysis (USP), we can exploit indirect effects of ultrasounds to synthesized nanostructured materials. Here, it is presented the design, synthesis, characterization, and application in photocatalysis of porous TiO2 microsphere with tunable physico-chemical properties obtained through USP. The second part of this Ph.D. thesis is focused on the study of the interaction among inorganic surfaces and biomolecules or, in general, biological systems. In a first work, we have synthesized sol-gel TiO2 nanoparticles with different morphology and use them for preliminary study of acetyl salicylic acid delivery. Moreover, the possibility to use TiO2 as a material for scaffold for bone regeneration is reported. This study has led to unravel a new bio-inspired crystallization pathway toward the bioactivity of synthetic bone substitutes. Other examples in the biomedical field are reported in Appendix A.
The fate of optical excitons in FAPbI3 nanocube superlattices
Creators: name: Milloch, Alessandra
name: Filippi, Umberto
name: Franceschini, Paolo
name: Mor, Selene
name: Pagliara, Stefania
name: Ferrini, Gabriele
name: Camargo, Franco V. A.
name: Cerullo, Giulio
name: Baranov, Dmitry
name: Manna, Liberato
name: Giannetti, Claudio
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Understanding the nature of the photoexcitation and ultrafast charge dynamics pathways in organic halide perovskite nanocubes and their aggregation into superlattices is key for the potential applications as tunable light emitters, photon harvesting materials and light-amplification systems. In this work, we apply two-dimensional coherent electronic spectroscopy (2DES) to track in real time the formation of near-infrared optical excitons and their ultrafast relaxation in CH(NH2)2PbI3 nanocube superlattices. Our results unveil that the coherent ultrafast dynamics is limited by the combination of the inherent short exciton decay time ~40 fs and the dephasing due to the coupling with selective optical phonon modes at higher temperatures. On the picosecond timescale, we observe the progressive formation of long-lived localized trap states. The analysis of the temperature dependence of the excitonic intrinsic linewidth, as extracted by the anti-diagonal components of the 2D spectra, unveils a dramatic change of the excitonic coherence time across the cubic to tetragonal structural transition. Our results offer a new way to control and enhance the ultrafast coherent dynamics of photocarrier generation in hybrid halide perovskite synthetic solids.
FORTEPIANO ANSAMBLI AMALIY MASHG'ULOTLARINING ASOSLARI
Creators: name: An, Anjella
Publisher: name: Zenodo
Year: 2023

description: Mazkur maqolada fortepiano cholg'usida hamkorlikda ijrochilik etish bo'yicha fikr-mulohazalar yurutilgan. Shuningdek, musiqa madaniyatida fortepiona cholg'u ijrochiligining ilmiy-nazariy ahamiyati batafsil yoritib berilgan.
Probing Radiative Neutrino Mass Generation through Monotop Production
Creators: name: Ng, John N.
name: de la Puente, Alejandro
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a generalization of a model where the right-handed up-type quarks serve as messengers for neutrino mass generation and as a portal for dark matter. Within this framework the Standard Model is extended with a single Majorana neutrino, a coloured electroweak-singlet scalar and a coloured electroweak-triplet scalar. We calculate the relic abundance of dark matter and show that we can match the latest experimental results. Furthermore, the implications from the scattering between nuclei and the dark matter candidate are studied and we implement the latest experimental constraints arising from flavour changing interactions, Higgs production and decay and LHC collider searches for a single jet and jets plus missing energy. In addition, we implement constraints arising from scalar top quark pair-production. We also study the production of a single top in association with missing energy and calculate the sensitivity of the LHC to the top quark semileptonic decay mode with the current $20$ fb$^{-1}$ data set at a centre of mass energy of $\sqrt{s}=8$ TeV. Furthermore, we carry out the analysis to centre of mass energies of $\sqrt{s}=14$ TeV with $30$ and $300$ fb$^{-1}$ of data.
description: 17 Figures and 4 Tables
Large-scale Assessment and Mathematics Teacher Practice: A Case Study with Ontario Grade 9 Applied Teachers
Creators: name: Lazarescu, Ina
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: large-scale assessment
mathematics teacher views
Grade 9 EQAO Assessment of Mathematics
impact on classroom practice

description: This qualitative study examines the connections between teachers’ views of large-scale assessment and their classroom practice, based on a case study of Ontario teachers and the Ontario Education Quality and Accountability Office [EQAO] Grade 9 Applied Assessment of Mathematics. Large-scale assessments are a prominent aspect of the Ontario education system; given that they are also mandatory, it is imperative that their impact on teaching be documented. This study enriches the existing literature on the topic of the Grade 9 EQAO Assessment of Mathematics, and provides a more-recent portrayal of the teachers’ views of this assessment and the potential impact of these views on classroom teaching by highlighting teacher attitudes, concerns, and classroom practices.
Soliton Microcombs in Integrated Chalcogenide Microresonators
Creators: name: Xia, Di
name: Yang, Zelin
name: Zeng, Pingyang
name: Zhang, Bin
name: Wu, Jiayue
name: Wang, Zifu
name: Zhao, Jiaxin
name: Gao, Mingqi
name: Huang, Yufei
name: Huang, Jianteng
name: Luo, Liyang
name: Liu, Dong
name: Yang, Shuixian
name: Guo, Hairun
name: Li, Zhaohui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Photonic integrated microcombs have enabled advanced applications in optical communication, microwave synthesis, and optical metrology, which in nature unveil an optical dissipative soliton pattern under cavity-enhanced nonlinear processes. The most decisive factor of microcombs lies in the photonic material platforms, where materials with high nonlinearity and in capacity of high-quality chip integration are highly demanded. In this work, we present a home-developed chalcogenide glasses-Ge25Sb10S65 (GeSbS) for the nonlinear photonic integration and for the dissipative soliton microcomb generation. Compared with the current integrated nonlinear platforms, the GeSbS features wider transparency from the visible to 11 um region, stronger nonlinearity, and lower thermo-refractive coefficient, and is CMOS compatible in fabrication. In this platform, we achieve chip-integrated optical microresonators with a quality (Q) factor above 2 x 10^6, and carry out lithographically controlled dispersion engineering. In particular, we demonstrate that both a bright soliton-based microcomb and a dark-pulsed comb are generated in a single microresonator, in its separated fundamental polarized mode families under different dispersion regimes. The overall pumping power is on the ten-milliwatt level, determined by both the high Q-factor and the high material nonlinearity of the microresonator. Our results may contribute to the field of nonlinear photonics with an alternative material platform for highly compact and high-intensity nonlinear interactions, while on the application aspect, contribute to the development of soliton microcombs at low operation power, which is potentially required for monolithically integrated optical frequency combs.
description: 22 pages, 5 figures
Comment on "Scrutinizing pion-pion scattering in light of recent lattice phase shifts"
Creators: name: van Beveren, Eef
name: Rupp, George
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In a recent paper by Xiu-Li Gao, Zhi-Hui Guo, Zhiguang Xiao, and Zhi-Yong Zhou, Phys. Rev. D 105, 094002 (2022), here referred to as I, $S$-wave $ππ$ scattering phase shifts obtained in a lattice-QCD calculation are analyzed using dispersive $S$-matrix methods. We question the reliability of the conclusion from this analysis that, for a pion mass of 391 MeV, the lattice phases favor the presence of both a $σ$-meson bound state and a nearby virtual state. Our main criticism concerns the neglect of the $S$-wave $K\bar{K}$ channel, which was considered alongside additional $s\bar{s}$ interpolating fields in the lattice computation used by the authors of I and also in typical coupled-channel models. As an illustration, some results from such a recent model are presented as well. Concluding remarks concern possible improvements of the analysis in I as well as further model tests.
description: 1 page, 1 figure. v3: Considerably expanded, with an additional figure and several extra references; version accepted for publication in Phys. Rev. D as a Comment. v4: confusing typo corrected in final paragraph, viz. "chiral-symmetry constraints" should read "crossing-symmetry constraints"
Finite-size effects in the diffusion dynamics of a glass-forming binary mixture with large size ratio
Creators: name: Vaibhav, Vinay
name: Horbach, Jürgen
name: Chaudhuri, Pinaki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Extensive molecular dynamics (MD) computer simulations of an equimolar glass-forming AB mixture with large size ratio are presented. While the large A particles show a glass transition around the critical density of mode coupling theory $ρ_c$, the small B particles remain mobile with a relatively weak decrease of their self diffusion coefficient $D_{\rm B}$ with increasing density. Surprisingly, around $ρ_c$, the self-diffusion coefficient of the A particles, $D_{\rm A}$, also starts to follow a rather weak dependence on density. We show that this is due to finite-size effects that can be understood from the analysis of the collective interdiffusion dynamics.
description: 10 pages, 8 figures
Verkaufsbuch
Livre des Comptes de Vente, Lre C
Creators: name: Streckeisen-Caesar, Emanuel
Publisher: name: [s.n.]
Year: 1779

description: Darin: Register, eingeheftete Einlage zu S. 77/78, 1 lose Einlage in separatem Umschlag
description: Französisch
description: Verzeichnung=Description=Inventaire 2014 ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Sebastian Preher
The enigmatic double-peaked stripped-envelope SN 2023aew
Creators: name: Kangas, Tuomas
name: Kuncarayakti, Hanindyo
name: Nagao, Takashi
name: Kotak, Rubina
name: Kankare, Erkki
name: Fraser, Morgan
name: Stevance, Heloise
name: Mattila, Seppo
name: Maeda, Kei'ichi
name: Stritzinger, Maximilian
name: Lundqvist, Peter
name: Elias-Rosa, Nancy
name: Ferrari, Lucía
name: Folatelli, Gastón
name: Frohmaier, Christopher
name: Galbany, Lluís
name: Kawabata, Miho
name: Koutsiona, Eleni
name: Müller-Bravo, Tomás E.
name: Piscarreta, Lara
name: Pursiainen, Miika
name: Singh, Avinash
name: Taguchi, Kenta
name: Teja, Rishabh Singh
name: Valerin, Giorgio
name: Pastorello, Andrea
name: Benetti, Stefano
name: Cai, Yong-Zhi
name: Charalampopoulos, Panos
name: Gutiérrez, Claudia P.
name: Kravtsov, Timo
name: Reguitti, Andrea
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present optical and near-infrared photometry and spectroscopy of SN 2023aew and our findings on its remarkable properties. This event, initially resembling a Type IIb supernova (SN), rebrightens dramatically $\sim$90 d after the first peak, at which time its spectrum transforms into that of a SN Ic. The slowly evolving spectrum specifically resembles a post-peak SN~Ic with relatively low line velocities even during the second rise. The second peak, reached 119 d after the first peak, is both more luminous ($M_r = -18.75\pm0.04$ mag) and much broader than those of typical SNe Ic. Blackbody fits to SN 2023aew indicate that the photosphere shrinks almost throughout its observed evolution, and the second peak is caused by an increasing temperature. Bumps in the light curve after the second peak suggest interaction with circumstellar matter (CSM) or possibly accretion. We consider several scenarios for producing the unprecedented behavior of SN 2023aew. Two separate SNe, either unrelated or from the same binary system, require either an incredible coincidence or extreme fine-tuning. A pre-SN eruption followed by a SN requires an extremely powerful, SN-like eruption (consistent with $\sim$10$^{51}$ erg) and is also disfavored. We therefore consider only the first peak a true stellar explosion. The observed evolution is difficult to reproduce if the second peak is dominated by interaction with a distant CSM shell. A delayed internal heating mechanism is more likely, but emerging embedded interaction with a CSM disk should be accompanied by CSM lines in the spectrum, which are not observed, and is difficult to hide long enough. A magnetar central engine requires a delayed onset to explain the long time between the peaks. Delayed fallback accretion onto a black hole may present the most promising scenario, but we cannot definitively establish the power source.
description: 21 pages + 14 appendix pages, 16 figures + 6 appendix figures. Accepted by A&A
Affective and cognitive prefrontal cortex projections to the lateral habenula in humans
Creators: name: Vadovičová, Karin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Anterior insula (AI) and dACC are known to process information about pain, loss, adversities, bad, harmful or suboptimal choices and consequences that threaten survival or well-being. Pain and loss activate also pregenual ACC (pgACC), linked to sad thoughts, hurt and regrets. The lateral habenula (LHb) is stimulated by predicted and received pain, discomfort, aversive outcome, loss. Its chronic stimulation makes us feel worse/low and gradually stops us choosing and moving for suboptimal, hurtful or punished choices, by direct and indirect (via RMTg) inhibition of DRN and VTA/SNc. Response selectivity of LHb neurons suggests their cortical input from affective and cognitive evaluative regions that make expectations about bad or suboptimal outcomes. Based on these facts I predicted direct corticohabenular projections from the dACC, pgACC and AI, as part of the adversity processing circuit that learns to avoid bad outcomes by suppressing dopamine and serotonin signal. Using DTI I found dACC, pgACC, AI, adjacent caudolateral and lateral OFC projections to LHb. I predicted no corticohabenular projections from the reward processing regions: medial OFC and vACC because both respond most strongly to good, high value stimuli and outcomes, inducing serotonin and dopamine release respectively. This lack of LHb projections was confirmed for vACC and likely for mOFC. The surprising findings were the corticohabenular projections from the cognitive prefrontal cortex regions, known for flexible reasoning, planning and combining whatever information are relevant for reaching current goals. I propose that prefrontohabenular projections provide a teaching signal for value-based choice behaviour, to learn to deselect, avoid or inhibit the potentially harmful, low valued or wrong choices, goals, strategies, predictions, models and ways of doing things, to prevent bad or suboptimal consequences.
description: I renamed the medioventral part of the anterior thalamus via which the PFC to LHb fibre tracts from ventral anterior (AV) to medial anterior thalamic region. Apologies for that. My co-author decided to remove his name
Status of the aligned two-Higgs-doublet model confronted with the Higgs data
Creators: name: Wang, Lei
name: Han, Xiao-Fang
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Imposing the theoretical constraints from vacuum stability, unitarity and perturbativity as well as the experimental constraints from the electroweak precision data, flavor observables and the non-observation of additional Higgs at collider, we study the implications of available Higgs signals on a two-Higgs-doublet model with the alignment of the down-type quarks and charged lepton Yukawa coupling matrices. Compared to the four traditional types of two-Higgs-doublet models, the model has two additional mixing angles $θ_d$ and $θ_l$ in the down-type quark and charged lepton Yukawa interactions. We find that the mixing angle $θ_d$ can loose the constraints on $sin(β-α)$, $tanβ$ and $m_{H^{\pm}}$ sizably. The model can provide the marginally better fit to available Higgs signals data than SM, which requires the Higgs couplings with gauge bosons, $u\bar{u}$ and $d\bar{d}$ to be properly suppressed, and favors (1
description: 21 pages, 9 figures and 3 tables. Final version appeared in JHEP
IOTLB-SC: An Accelerator-Independent Leakage Source in Modern Cloud Systems
Creators: name: Tiemann, Thore
name: Weissman, Zane
name: Eisenbarth, Thomas
name: Sunar, Berk
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences
subject: C.0; D.4.6

description: Hardware peripherals such as GPUs and FPGAs are commonly available in server-grade computing to accelerate specific compute tasks, from database queries to machine learning. CSPs have integrated these accelerators into their infrastructure and let tenants combine and configure these components flexibly, based on their needs. Securing I/O interfaces is critical to ensure proper isolation between tenants in these highly complex, heterogeneous, yet shared server systems, especially in the cloud, where some peripherals may be under control of a malicious tenant. In this work, we investigate the interfaces that connect peripheral hardware components to each other and the rest of the system.We show that the I/O memory management units (IOMMUs) - intended to ensure proper isolation of peripherals - are the source of a new attack surface: the I/O translation look-aside buffer (IOTLB). We show that by using an FPGA accelerator card one can gain precise information over IOTLB activity. That information can be used for covert communication between peripherals without bothering CPU or to directly extract leakage from neighboring accelerated compute jobs such as GPU-accelerated databases. We present the first qualitative and quantitative analysis of this newly uncovered attack surface before fine-grained channels become widely viable with the introduction of CXL and PCIe 5.0. In addition, we propose possible countermeasures that software developers, hardware designers, and system administrators can use to suppress the observed side-channel leakages and analyze their implicit costs.
description: 14 pages. 8 figures, 2 of which in appendix. To be published in ACM ASIA Conference on Computer and Communications Security (ASIA CCS '23)
Anonyme Kontokorrentbücher
Creators: name: Franz Wagner & Cie
Publisher: name: [s.n.]
Year: 1825

description: Darin: eingeklebte Einlage zu Folio 2 und lose Einlage in separatem Umschlag in Band 1
description: Die Bücher sind vermutlich aus anderer Provenienz und aus späterer Zeit. Sie wurden ohne erkennbaren Grund dem Bestand der im Jahre 1824 in Liquidation getretenen Firma zugewiesen.
description: In Band 2 ist an verschiedenen Stellen je eine Anzahl leere Blätter herausgenommen, insbesondere unmittelbar vor dem Register herausgerissen
description: Französisch
description: Verzeichnung=Description=Inventaire 2014 ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Sebastian Preher
Small-scale vortical motions in cool stellar atmospheres
Creators: name: Cuissa, J. R. Canivete
name: Riva, F.
name: Steiner, O.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Aims: Our aim is to study the presence and properties of small-scale swirls in numerical simulations of the atmospheres of cool main-sequence stars. Our particular focus is on understanding the variations in these properties for different stellar types and their sensitivity to the surface magnetic field. Furthermore, we aim to investigate the role of these events in the energy transport within the simulated atmospheres.
 Methods: We analyze three-dimensional, radiative-magnetohydrodynamic, box-in-a-star, numerical simulations of four main-sequence stars of spectral types K8V, K2V, G2V, and F5V. These simulations include a surface small-scale dynamo responsible for amplifying an initially weak magnetic field. Thus, we can study models characterized by very weak, or, magnetic fields in near equipartition. To identify small-scale vortices in horizontal layers of the simulations, we employ the automated algorithm SWIRL.
 Results: Small-scale swirls are abundant in the simulated atmospheres of all the investigated cool stars. The characteristics of these events appear to be influenced by the main properties of the stellar models and by the strength of the surface magnetic field. In addition, we identify signatures of torsional Alfvénic pulses associated with these swirls, which are responsible for a significant vertical Poynting flux in the simulated stellar photospheres. Notably, this flux is particularly significant in the K8V model, suggesting a possible link to the enhanced basal \ion{Ca}{ii} H and K fluxes observed in the range of $B-V$ color index $1.1 \leq B - V \leq 1.4$. Finally, we present a simple analytical model, along with an accompanying scaling relation, to explain a peculiar result of the statistical analysis that the rotational period of surface vortices increases with the effective temperature of the stellar model.
Quantum affine modules for non-twisted affine Kac-Moody algebras
Creators: name: Futorny, V.
name: Hartwig, J. T.
name: Wilson, E. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B37, 17B67

description: We construct new irreducible weight modules over quantum affine algebras of type I with all weight spaces infinite-dimensional. These modules are obtained by parabolic induction from irreducible modules over the Heisenberg subalgebra.
Rheological response of a glass-forming liquid having large bidispersity
Creators: name: Vaibhav, Vinay
name: Horbach, Jürgen
name: Chaudhuri, Pinaki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Using extensive numerical simulations, we investigate the flow behaviour of a model glass-forming binary mixture whose constituent particles have a large size ratio. The rheological response to applied shear is studied in the regime where the larger species are spatially predominant. We demonstrate that the macroscopic rigidity that emerges with increasing density occurs in the regime where the larger species undergo a glass transition while the smaller species continue to be highly diffusive. We analyse the interplay between the timescale imposed by the shear and the quiescent relaxation dynamics of the two species to provide a microscopic insight into the observed rheological response. Finally, by tuning the composition of the mixture, we illustrate that the systematic insertion of the smaller particles affects the rheology by lowering of viscosity of the system.
description: 9 pages, 7 figures
LOYIHA BUDJETI VA UNING IJROSINI TA'MINLASH YO'NALISHLARI
Creators: name: Xamidov, Odil
Publisher: name: Zenodo
Year: 2023

description: Loyiha budjeti - bu vazifani bajarish uchun zarur bo'lgan ishlarning umumiy qiymati.  U umumiy xarajatlar, operatsion va ma'muriy xarajatlarni, shuningdek, kutilmagan holatlar uchun zaxirani o'z ichiga oladi. Budjetlashtirish bozorni tahlil qilish, muddatlarni baholash, xavflarni aniqlash va vazifalarni aniqlashdan keyin amalga oshiriladi.  Bir qator tamoyillarni hisobga olish kerak: to'liqlik, realizm va xarajatlarning asosliligi.
Kopierbuch für Briefe nach in- und ausländischen Orten im italienischen Sprachgebiet (Copie de lettres italiennes)
Creators: name: Franz Wagner & Cie
Publisher: name: [s.n.]
Year: 1801

description: Darin: Register
description: Italienisch
description: Verzeichnung=Description=Inventaire 2014 ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Sebastian Preher
Supersymmetry dictated topology in periodic gauge fields and realization in strained and twisted 2D materials
Creators: name: Zhai, Dawei
name: Lin, Zuzhang
name: Yao, Wang
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Supersymmetry (SUSY) of Hamiltonian dictates double degeneracy between a pair of superpartners (SPs) transformed by supercharge, except at zero energy where modes remain unpaired in many cases. Here we explore a SUSY of complete isospectrum between SPs -- with paired zero modes -- realized by 2D electrons in zero-flux periodic gauge fields, which can describe twisted or periodically strained 2D materials. We find their low-energy sector containing zero (or threshold) modes must be topologically non-trivial, by proving that Chern numbers of the two SPs have a finite difference dictated by the number of zero modes and energy dispersion in their vicinity. In $30^\circ$ twisted bilayer (double bilayer) transition metal dichalcogenides subject to periodic strain, we find one SP is topologically trivial in its lowest miniband, while the twin SP of identical dispersion has a Chern number of $1$ ($2$), in stark contrast to time-reversal partners that have to be simultaneously trivial or nontrivial. For systems whose physical Hamiltonian corresponds to the square root of a SUSY Hamiltonian, such as twisted or strained bilayer graphene, we reveal that topological properties of the two SUSY SPs are transferred respectively to the conduction and valence bands, including the contrasted topology in the low-energy sector and identical topology in the high-energy sector. This offers a unified perspective for understanding topological properties in many flat-band systems described by such square-root models. Both types of SUSY systems provide unique opportunities for exploring correlated and topological phases of matter.
description: Accepted by Reports on Progress in Physics (Original Research). Main text and supplemental material are both freely available from the official website
Automated generation of large-scale distribution grid models based on open data and open source software using an optimization approach
Creators: name: Çakmak, Hüseyin K.
name: Janecke, Luc
name: Hagenmeyer, Veit
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.6.3; I.6.5; I.6.6; J.2

description: The increasing share of renewable energy sources on distribution grid level as well as the emerging active role of prosumers lead to both higher distribution grid utilization, and at the same time greater unpredictability of energy generation and consumption. This poses major problems for grid operators in view of, e.g., voltage stability and line (over)loading. Thus, detailed and comprehensive simulation models are essential for planning future distribution grid expansion in view of the expected strong electrification of society. In this context, the contribution of the present paper is a new, more refined method for automated creation of large-scale detailed distribution grid models based solely on publicly available GIS and statistical data. Utilizing the street layouts in Open Street Maps as potential cable routes, a graph representation is created and complemented by residential units that are extracted from the same data source. This graph structure is adjusted to match electrical low-voltage grid topology by solving a variation of the minimum cost flow linear optimization problem with provided data on secondary substations. In a final step, the generated grid representation is transferred to a DIgSILENT PowerFactory model with photovoltaic systems. The presented workflow uses open source software and is fully automated and scalable that allows the generation of ready-to-use distribution grid simulation models for given 20kV substation locations and additional data on residential unit properties for improved results. The performance of the developed method with respect to grid utilization is presented for a selected suburban residential area with power flow simulations for eight scenarios including current residential PV installation and a future scenario with full PV expansion. Furthermore, the suitability of the generated models for quasi-dynamic simulations is shown.
description: 9 pages, 3 figures, 5 tables
Spectral stability of small-amplitude dispersive shocks in quantum hydrodynamics with viscosity
Creators: name: Folino, Raffaele
name: Plaza, Ramón G.
name: Zhelyazov, Delyan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 76Y05, 35Q35, 35B35, 35P15

description: A compressible viscous-dispersive Euler system in one space dimension in the context of quantum hydrodynamics is considered. The dispersive term is due to quantum effects described through the Bohm potential and the viscosity term is of linear type. It is shown that small-amplitude viscous-dispersive shock profiles for the system under consideration are spectrally stable, proving in this fashion a previous numerical observation by Lattanzio et al. (Phys. D 402, 2020, p. 132222; Appl. Math. Comput. 385, 2020, p. 125450). The proof is based on spectral energy estimates which profit from the monotonicty of the profiles in the small-amplitude regime.
description: 23 pages, 1 figure
Pierre Félicien Thébault (1820-1896) an Charles David Mayer-Eymar (1826-1907)
Creators: name: Thébault, Pierre Félicien
Publisher: name: [s.n.]
Year: 1892

description: Brief aus Rennes, betreffend Tod von Félicité Puymori-Mayer, die nun schon 7 Jahre Witwe gewesen sei
Surface Properties of Graphite for Efficient Electrocatalysis of Vanadium Redox Reactions
Creators: name: Radinger, Hannes
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2022

description: Die Ergebnisse dieser Arbeit tragen zu einem tieferen Verständnis der kinetischen Prozesse in Vanadium-Redox-Flow-Batterien bei. Dafür wurden die elektrokatalytischen und physikochemischen Eigenschaften von industriell relevantem Graphitfilz und verwandten kohlenstoffbasierten Materialien untersucht. Der Einsatz von mehrere spektroskopischen und mikroskopischen Methoden ermöglichte die Abbildung verschiedener Skalen der Mikrostruktur, die chemische Zusammensetzung, die elektronische Struktur und schließlich die kinetischen Vorgänge mittels theoretischen Berechnungen und spektro-elektrochemischen Untersuchungen. Aufgrund widersprüchlicher Ergebnisse in der Literatur im Themenkomplex funktionelle Sauerstoffgruppen hat sich die Arbeit zum Ziel gesetzt, eindeutige Zusammenhänge zwischen Oberflächenstruktur und Elektrokatalyse herzustellen. Die Analyse von Eigenschaften chemisch und strukturell modifizierter Elektroden vor und nach elektrochemischen Tests führte zur Identifizierung graphitischer Defekte als aktive Zentren. Nach der vollständigen Entfernung von Sauerstoff ergaben sich wasserstoffterminierte Defekte anstelle von Oberflächengruppen als Ursache für die katalytische Aktivität. Die Anbringung von Pyrenen mit unterschiedlichen Funktionalitäten auf der Graphitoberfläche diente zum Nachweis der Effekte einzelner Sauerstoffgruppen. Um die Auswirkung der verschiedenen Defekt-Geometrien zu spezifizieren, wurden durch thermochemische Aktivierungen Kohlenstoffatome in Modell- und realen Elektroden durch Phosphor substituiert. Unter gezielter Berücksichtigung aller dabei veränderten Elektrodeneigenschaften konnte so die elektrochemische Aktivität deutlich gesteigert werden. Die Untersuchung der elektronischen Struktur von polyzyklischen aromatischen Kohlenwasserstoffen verband die elektrokatalytische Aktivität mit der Elektrodenarchitektur und der Austrittsarbeit. Theoretische Modellierungen definierten Wechselwirkungen zwischen den solvatisierten Vanadium-Ionen und der Substrate durch verschiedene wasserstoff- und sauerstoffterminierte Kanten. Schließlich formuliert die Arbeit durch die Untersuchung der Elektrode–Elektrolyt-Grenzfläche bei angelegtem Potential einen experimentell und rechnerisch gestützten, innovativen Reaktionsmechanismus.
Constraining decaying dark matter with BOSS data and the effective field theory of large-scale structures
Creators: name: Simon, Théo
name: Abellán, Guillermo Franco
name: Du, Peizhi
name: Poulin, Vivian
name: Tsai, Yuhsin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We update cosmological constraints on two decaying dark matter models in light of BOSS-DR12 data analyzed under the Effective Field Theory of Large-Scale Structures (EFTofLSS) formalism, together with Planck, Pantheon and other BOSS measurements of the baryonic acoustic oscillation (BAO). In the first model, a fraction $f_{\rm dcdm}$ of cold dark matter (CDM) decays into dark radiation (DR) with a lifetime $τ$. In the second model (recently suggested as a potential resolution to the $S_8$ tension), all the CDM decays with a lifetime $τ$ into DR and a massive warm dark matter (WDM) particle, with a fraction $\varepsilon$ of the CDM rest mass energy transferred to the DR. Using numerical codes from the recent literature, we perform the first calculation of the mildly non-linear (matter and galaxy) power spectra with the EFTofLSS for these two models. In the case of DR products, we obtain the constraints $f_{\rm dcdm}\lesssim0.022$ (95\% C.L.) for lifetimes shorter than the age of the universe, and $τ/f_{\rm dcdm} \gtrsim 250$ Gyr in the long-lived regime assuming $f_{\rm dcdm}\to1$. We show that Planck data contributes the most to these constraints, with EFTofBOSS providing a marginal improvement over conventional BAO and redshift space distortions ($fσ_8$) data. In the case of DR and WDM decay products, we find that EFTofBOSS data significantly improves the constraints at 68\% C.L. on the CDM lifetime with a $S_8$ prior from KiDS-1000. We show that, in order to fit EFTofBOSS data while lowering $S_8$ to match KiDS-1000, the best-fit model has a longer lifetime $τ= 120$ Gyr, with a larger kick velocity $v_{\rm kick}/c \simeq \varepsilon \simeq 1.2\%$, than that without EFTofBOSS ($τ= 43$ Gyr, $\varepsilon =0.6\%$). We anticipate that future surveys will provide exquisite constraints on such models.
description: 30 pages (including appendices), 17 figures. Comments welcome!