cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On weak model sets of extremal density
Creators: name: Baake, Michael
name: Huck, Christian
name: Strungaru, Nicolae
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 37A45, 42B10, 52C23

description: The theory of regular model sets is highly developed, but does not cover examples such as the visible lattice points, the k-th power-free integers, or related systems. They belong to the class of weak model sets, where the window may have a boundary of positive measure, or even consists of boundary only. The latter phenomena are related to the topological entropy of the corresponding dynamical system and to various other unusual properties. Under a rather natural extremality assumption on the density of the weak model set we establish its pure point diffraction nature. We derive an explicit formula that can be seen as the generalisation of the case of regular model sets. Furthermore, the corresponding natural patch frequency measure is shown to be ergodic. Since weak model sets of extremal density are generic for this measure, one obtains that the dynamical spectrum of the hull is pure point as well.
description: 28 pages, 2 figures; updated version with improved sixth section
Functional transcription factor target discovery via compendia of binding and expression profiles
Creators: name: Banks, Christopher J.
name: Joshi, Anagha
name: Michoel, Tom
Publisher: name: arXiv
Year: 2015
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: Genome-wide experiments to map the DNA-binding locations of transcription-associated factors (TFs) have shown that the number of genes bound by a TF far exceeds the number of possible direct target genes. Distinguishing functional from non-functional binding is therefore a major challenge in the study of transcriptional regulation. We hypothesized that functional targets can be discovered by correlating binding and expression profiles across multiple experimental conditions. To test this hypothesis, we obtained ChIP-seq and RNA-seq data from matching cell types from the human ENCODE resource, considered promoter-proximal and distal cumulative regulatory models to map binding sites to genes, and used a combination of linear and non-linear measures to correlate binding and expression data. We found that a high degree of correlation between a gene's TF-binding and expression profiles was significantly more predictive of the gene being differentially expressed upon knockdown of that TF, compared to using binding sites in the cell type of interest only. Remarkably, TF targets predicted from correlation across a compendium of cell types were also predictive of functional targets in other cell types. Finally, correlation across a time course of ChIP-seq and RNA-seq experiments was also predictive of functional TF targets in that tissue.
description: 15 pages + 8 pages supplementary material; 6 figures, 6 supplementary figures, 5 supplementary tables
Evans-Selberg potential on planar domains
Creators: name: Dong, Robert Xin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: Primary 30F15, Secondary 31A05, 31A15, 30F20

description: We provide explicit formulas of Evans kernels, Evans-Selberg potentials and fundamental metrics on potential-theoretically parabolic planar domains.
Community, Crowdsourcing, and Commerce: WhatsApp Groups for Agriculture in Kenya
Creators: name: David, Cailean
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2020
Subjects: Whatsapp
Cell phones
Agriculture
ICTD
Mobile phones
Messenger groups
Virtual communities of practice
Virtual community of practice
Leapfrogging
International development

description: WhatsApp’s growing presence in the developing world has led to a grassroots movement of messaging groups designed to serve relevant needs for small scale farmers in Kenya. These groups provide the means for as many as 256 members to ask questions, share experiences and solutions, gain access to information, and access markets for their products. This research project examines the use of these WhatsApp groups for agriculture in Kenya. The project seeks to understand the existing barriers to participation, and the use, benefits, and shortcomings of these groups for their members. Research findings indicated that farmers’ overall access to smart phones is a substantial barrier to their participation in groups for agriculture, and these barriers are expectedly more difficult for the poorest and most vulnerable (in which intersectional poverty creates additional barriers). However, while each group can vary significantly, members report that WhatsApp groups as a whole overwhelmingly benefit their livelihoods and practice. Systemic and societal change occurs when the experiences and successes of one individual are shared with a larger group – leading to rapid and shared prosperity. As each individual learns a new skill, technique, or input, the group must also learn and benefit from that knowledge. WhatsApp provides the means and the platform for this type of information exchange to occur at scale, and with individuals who would otherwise be unlikely to communicate. This research project examines the emerging use of grassroots WhatsApp groups as a potential example of this positive and inclusive approach to extension and development in agricultural communities.
Global Climate Policies, Local Institutions and Food Security in a Pastoral Society in Ethiopia
Creators: name: Virtanen, Pekka
name: Palmujoki, Eero
name: Gemechu, Dereje Terefe
Publisher: name: Columbia University
Year: 2011
Subjects: Poverty--Prevention
Food security
Climatic changes--Government policy
Climatic changes
Social structure
Economics

description: This paper explores climate change adaptation within national policy priorities in a least developed country (LDC). The premise of the article is that when considering food security, climate is an exogenous trigger, while the deeper causes lie in social problems. Therefore, adaptation is subordinate to poverty alleviation. The paper examines how these two goals, climate adaptation and poverty alleviation, can be combined. Recent studies have shown that the most effective way to adapt to changing climate conditions in a poor country is to rely on local institutions that have established and sustainable mechanisms to deal with extreme climatic conditions.
This research analyzes the stakeholder model, which calls for the participation of both governmental and non-governmental institutions, and how it is applied to climate change adaptation activities in Ethiopia. The study includes field research to analyze how local institutions are used to strengthen the resilience of communities in changing climate conditions. This research was carried out among pastoral communities in the Borana Zone and in the lowland areas of the Guji Zone in the Oromia Regional State of Ethiopia. The central methods of the study are semi-structured interviews with key stakeholders as well as secondary materials in the form of of policy statements, project documents and research literature. This research concludes that local institutions are poorly integrated into the process, while traditional adaptation strategies such as mobility are practically neglected.
On the correspondence between boundary and bulk lattice models and (logarithmic) conformal field theories
Creators: name: Belletête, Jonathan
name: Gainutdinov, Azat M.
name: Jacobsen, Jesper L.
name: Saleur, Hubert
name: Vasseur, Romain
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The relationship between bulk and boundary properties is one of the founding features of (Rational) Conformal Field Theory. Our goal in this paper is to explore the possibility of having an equivalent relationship in the context of lattice models. We focus on models based on the Temperley-Lieb algebra, and use the concept of braid translation, which is a natural way to close an open spin chain by adding an interaction between the first and last spins using braiding to bring them next to each other. The interaction thus obtained is in general non-local, but has the key feature that it is expressed solely in terms of the algebra for the open spin chain - the ordinary Temperley-Lieb algebra and its blob algebra generalization. This is in contrast with the usual periodic spin chains which involve only local interactions, and are described by the periodic TL algebra. We show that for the Restricted Solid-On-Solid models, which are known to be described by minimal unitary CFTs in the continuum limit, the braid translation in fact does provide the ordinary periodic model starting from the open model with fixed boundary conditions on the two sides of the strip. This statement has a precise mathematical formulation, which is a pull-back map between irreducible modules of, respectively, the blob algebra and the affine TL algebra. We then turn to the same kind of analysis for two models whose continuum limits are Logarithmic CFTs - the alternating gl(1|1) and sl(2|1) spin chains. We find that the result for minimal models does not hold any longer: braid translation of the relevant TL modules does not give rise to the modules known to be present in the periodic chains. In the gl(1|1) case, the content in terms of the irreducibles is the same, as well as the spectrum, but the detailed structure (like logarithmic coupling) is profoundly different. This carries over to the continuum limit.
description: v2: 63 pp, few typos fixed, the final version in a special issue of J Phys A
Dynamics of the polarization of a pinned domain wall in a magnetic nanowire
Creators: name: Sedlmayr, N.
name: Dugaev, V.
name: Berakdar, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the dynamics of polarization of a single domain wall in a magnetic nanowire, which is strongly pinned by impurities. In this case the equation of motion for the polarization parameter does not include any other dynamical variables and is nonlinear due to magnetic anisotropy. We calculated numerically the magnetization dynamics for different choices of parameters under short current pulses inducing polarization switching. Our results show that the switching is most effective for very rapid current pulses. Damping also enhances the switching probability.
description: 4 pages, 4 figures
The Roles of Dust Growth in the Temperature Evolution and Snow Line Migration in Magnetically Accreting Protoplanetary Disks
Creators: name: Kondo, Katsushi
name: Okuzumi, Satoshi
name: Mori, Shoji
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The temperature structure of protoplanetary disks provides an important constraint on where in the disks rocky planets like our own form. Recent nonideal magnetohydrodynamical (MHD) simulations have shown that the internal Joule heating associated with magnetically driven disk accretion is inefficient at heating the disk midplane. A disk temperature model based on the MHD simulations predicts that in a disk around a solar-mass young star, the water snow line can move inside the current Earth's orbit within 1 Myr after disk formation. However, the efficiency of the internal Joule heating depends on the disk's ionization and opacity structures, both of which are governed by dust grains. In this study, we investigate these effects by combing the previous temperature model for magnetically accreting disks with a parameterized model for the grain size and vertical distribution. Grain growth enhances the gas ionization fraction and thereby allows Joule heating to occur closer to the midplane. However, growth beyond 10 $\rm μm$ causes a decrease in the disk opacity, leading to a lower midplane temperature. The combination of these two effects results in the midplane temperature being maximized when the grain size is in the range 10-100 $\rm μm$. Grain growth to millimeter sizes can also delay the snow line's migration to the 1 au orbit by up to a few Myr. We conclude that accounting for dust growth is essential for accurately modeling the snow line evolution and terrestrial planet formation in magnetically accreting protoplanetary disks.
description: 20 pages, 15 figures, accepted for publication in The Astrophysical Journal
Comparative study of nuclear effects in polarized electron scattering from 3He
Creators: name: Ethier, J. J.
name: Melnitchouk, W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a detailed analysis of nuclear effects in inclusive electron scattering from polarized 3He nuclei for polarization asymmetries, structure functions and their moments, both in the nucleon resonance and deep-inelastic regions. We compare the results of calculations within the weak binding approximation at finite Q^2 with the effective polarization ansatz often used in experimental data analyses, and explore the impact of Δ components in the nuclear wave function and nucleon off-shell corrections on extractions of the free neutron structure. Using the same framework we also make predictions for the Q^2 dependence of quasielastic scattering from polarized 3He, data on which can be used to constrain the spin-dependent nuclear smearing functions in 3He.
description: 38 pages, 10 figures
The symplectic fermion ribbon quasi-Hopf algebra and the SL(2,Z)-action on its centre
Creators: name: Farsad, Vanda
name: Gainutdinov, Azat M.
name: Runkel, Ingo
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We introduce a family of factorisable ribbon quasi-Hopf algebras $Q(N)$ for $N$ a positive integer: as an algebra, $Q(N)$ is the semidirect product of $\mathbb{C}\mathbb{Z}_2$ with the direct sum of a Grassmann and a Clifford algebra in $2N$ generators. We show that $Rep Q(N)$ is ribbon equivalent to the symplectic fermion category $SF(N)$ that was computed by the third author from conformal blocks of the corresponding logarithmic conformal field theory. The latter category in turn is conjecturally ribbon equivalent to representations of $V_{ev}$, the even part of the symplectic fermion vertex operator super algebra. Using the formalism developed in our previous paper we compute the projective $SL(2,\mathbb{Z})$-action on the centre of $Q(N)$ as obtained from Lyubashenko's general theory of mapping class group actions for factorisable finite ribbon categories. This allows us to test a conjectural non-semisimple version of the modular Verlinde formula: we verify that the $SL(2,\mathbb{Z})$-action computed from $Q(N)$ agrees projectively with that on pseudo trace functions of $V_{ev}$.
description: 81pp; v3: extended introduction; new Remark 5.4 about decomposition of SL(2,Z) representations; new Remarks 6.2 and 6.7 on pseudo-trace functions; typos fixed, references updated; version for publication in Advances in Mathematics
Dynamical quark mass generation in a strong external magnetic field
Creators: name: Mueller, Niklas
name: Bonnet, Jacqueline A.
name: Fischer, Christian S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the effect of a strong magnetic field on dynamical chiral symmetry breaking in quenched and unquenched QCD. To this end we apply the Ritus formalism to the coupled set of (truncated) Dyson-Schwinger equations for the quark and gluon propagator under the presence of an external constant Abelian magnetic field. We work with an approximation that is trustworthy for large fields eH > Λ_{QCD}^2 but is not restricted to the lowest Landau level. We confirm the linear rise of the quark condensate with large external field previously found in other studies and observe the transition to the asymptotic power law at extremely large fields. We furthermore quantify the validity of the lowest Landau level approximation and find substantial quantitative differences to the full calculation even at very large fields. We discuss unquenching effects in the strong field propagators, condensate and the magnetic polarization of the vacuum. We find a significant weakening of magnetic catalysis caused by the back reaction of quarks on the Yang-Mills sector. Our results support explanations of the inverse magnetic catalysis found in recent lattice studies due to unquenching effects.
description: 21 pages, 9 figures; v2: references added, typos and numerics corrected; results qualitatively unchanged
Sustaining Culture with Sustainable Stoves: The Role of Tradition in Providing Clean-Burning Stoves to Developing Countries
Creators: name: Victor, Britta
Publisher: name: Columbia University
Year: 2011
Subjects: Soot--Environmental aspects
Stoves--Technological innovations
Rural development
Climate change mitigation
Ethnology
Sustainability
Public health

description: The focus of climate change mitigation is on greenhouse gases such as carbon dioxide, but there is another form of carbon that contributes greatly to climate change and that, if cleaned up, seems to be a quick and easy way to slow climate change. This is black carbon, or soot, and the majority of the world's black carbon comes from the basic cooking stoves of poor people in developing countries. These same stoves also pose significant health risks to their users, and many researchers and philanthropists are working to put cleaner stoves in their kitchens. This quick fix is not so easy, though. In the quest for the perfect stove, a key detail is left out: the cooks do not want to give up their old stoves. This study juxtaposes the research of stove engineers with ethnographies of rural communities, writings on women's rights, and theories of imperialism, to explore the complex cultural obstacles to the success of clean stove programs in developing countries.
BIT: Battery-free, IC-less and Wireless Smart Textile Interface and Sensing System
Creators: name: Xu, Weiye
name: Li, Tony
name: Wang, Yuntao
name: Yang, Xing-dong
name: Wu, Te-yen
Publisher: name: arXiv
Year: 2025
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: The development of smart textile interfaces is hindered by the inclusion of rigid hardware components and batteries within the fabric, which pose challenges in terms of manufacturability, usability, and environmental concerns related to electronic waste. To mitigate these issues, we propose a smart textile interface and its wireless sensing system to eliminate the need for ICs, batteries, and connectors embedded into textiles. Our technique is established on the integration of multi-resonant circuits in smart textile interfaces, and utilizing near-field electromagnetic coupling between two coils to facilitate wireless power transfer and data acquisition from smart textile interface. A key aspect of our system is the development of a mathematical model that accurately represents the equivalent circuit of the sensing system. Using this model, we developed a novel algorithm to accurately estimate sensor signals based on changes in system impedance. Through simulation-based experiments and a user study, we demonstrate that our technique effectively supports multiple textile sensors of various types.
description: 18 pages, 11 figures, CHI 2025
Gedanken eines protestantischen Naturwissenschaftlers zu Beiträgen in den Heften des Jahres 1994
Creators: name: Dörr, Norbert
Publisher: name: Werkstatt Schwule Theologie
Year: 1970

description: Werkstatt Schwule Theologie, Bd. 2 Nr. 2 (1995): Werkstatt Schwule Theologie, Band 2, Heft 2
CONNECT: A neural network based framework for emulating cosmological observables and cosmological parameter inference
Creators: name: Nygaard, Andreas
name: Holm, Emil Brinch
name: Hannestad, Steen
name: Tram, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Bayesian parameter inference is an essential tool in modern cosmology, and typically requires the calculation of $10^5$--$10^6$ theoretical models for each inference of model parameters for a given dataset combination. Computing these models by solving the linearised Einstein-Boltzmann system usually takes tens of CPU core-seconds per model, making the entire process very computationally expensive. In this paper we present \textsc{connect}, a neural network framework emulating \textsc{class} computations as an easy-to-use plug-in for the popular sampler \textsc{MontePython}. \textsc{connect} uses an iteratively trained neural network which emulates the observables usually computed by \textsc{class}. The training data is generated using \textsc{class}, but using a novel algorithm for generating favourable points in parameter space for training data, the required number of \textsc{class}-evaluations can be reduced by two orders of magnitude compared to a traditional inference run. Once \textsc{connect} has been trained for a given model, no additional training is required for different dataset combinations, making \textsc{connect} many orders of magnitude faster than \textsc{class} (and making the inference process entirely dominated by the speed of the likelihood calculation). For the models investigated in this paper we find that cosmological parameter inference run with \textsc{connect} produces posteriors which differ from the posteriors derived using \textsc{class} by typically less than $0.01$--$0.1$ standard deviations for all parameters. We also stress that the training data can be produced in parallel, making efficient use of all available compute resources. The \textsc{connect} code is publicly available for download at \url{https://github.com/AarhusCosmology}.
description: 27 pages, 14 figures - Revision after submission to JCAP
A fusion for the periodic Temperley-Lieb algebra and its continuum limit
Creators: name: Gainutdinov, Azat M.
name: Jacobsen, Jesper L.
name: Saleur, Hubert
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The equivalent of fusion in boundary conformal field theory (CFT) can be realized quite simply in the context of lattice models by essentially glueing two open spin chains. This has led to many developments, in particular in the context of chiral logarithmic CFT. We consider in this paper a possible generalization of the idea to the case of bulk conformal field theory. This is of course considerably more difficult, since there is no obvious way of merging two closed spin chains into a big one. In an earlier paper, two of us had proposed a "topological" way of performing this operation in the case of models based on the affine Temperley-Lieb (ATL) algebra, by exploiting the associated braid group representation and skein relations. In the present work, we establish - using, in particular, Frobenius reciprocity - the resulting fusion rules for standard modules of ATL in the generic as well as partially degenerate cases. These fusion rules have a simple interpretation in the continuum limit. However, unlike in the chiral case this interpretation does not match the usual fusion in non-chiral CFTs. Rather, it corresponds to the glueing of the right moving component of one conformal field with the left moving component of the other.
description: 40pp, v2: Acknowledgments added, v3: typos fixed and few explanations added, for a version in JHEP
Holonomy spin foam models: Asymptotic geometry of the partition function
Creators: name: Hellmann, Frank
name: Kaminski, Wojciech
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the asymptotic geometry of the spin foam partition function for a large class of models, including the models of Barrett and Crane, Engle, Pereira, Rovelli and Livine, and, Freidel and Krasnov. The asymptotics is taken with respect to the boundary spins only, no assumption of large spins is made in the interior. We give a sufficient criterion for the existence of the partition function. We find that geometric boundary data is suppressed unless its interior continuation satisfies certain accidental curvature constraints. This means in particular that most Regge manifolds are suppressed in the asymptotic regime. We discuss this explicitly for the case of the configurations arising in the 3-3 Pachner move. We identify the origin of these accidental curvature constraints as an incorrect twisting of the face amplitude upon introduction of the Immirzi parameter and propose a way to resolve this problem, albeit at the price of losing the connection to the SU(2) boundary Hilbert space. The key methodological innovation that enables these results is the introduction of the notion of wave front sets, and the adaptation of tools for their study from micro local analysis to the case of spin foam partition functions.
description: 63 pages, 5 figures v2: Reference corrected
The insecure airway: a comparison of knots and commercial devices for securing endotracheal tubes
Creators: name: Lovett, Paris
name: Flaxman, Alexander
name: Stürmann, Kai
name: Bijur, Polly
Publisher: name: Columbia University
Year: 2006
Subjects: Airway extubation
Emergency medicine
Medicine

description: Background: Endotracheal Tubes (ETTs) are commonly secured using adhesive tape, cloth tape, or commercial devices. The objectives of the study were (1) To compare degrees of movement of ETTs secured with 6 different commercial devices and (2) To compare movement of ETTs secured with cloth tape tied with 3 different knots (hitches).

Methods: A 17 cm diameter PVC tube with 14 mm "mouth" hole in the side served as a mannequin. ETTs were subjected to repeated jerks, using a cable and pulley system. Measurements: (1) Total movement of ETTs relative to "mouth" (measure used for devices) (2) Slippage of ETT through securing knot (measure used for knots).

Results: Among commercial devices, the Dale® showed less movement than other devices, although some differences between devices did not reach significance. Among knots, Magnus and Clove Hitches produced less slippage than the Cow Hitch, but these differences did not reach statistical significance.

Conclusion: Among devices tested, the Dale® was most secure. Within the scope offered by the small sample sizes, there were no statistically significant differences between the knots in this study.
LocNet: Global localization in 3D point clouds for mobile vehicles
Creators: name: Yin, Huan
name: Tang, Li
name: Ding, Xiaqing
name: Wang, Yue
name: Xiong, Rong
Publisher: name: arXiv
Year: 2017
Subjects: subject: Robotics (cs.RO)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Global localization in 3D point clouds is a challenging problem of estimating the pose of vehicles without any prior knowledge. In this paper, a solution to this problem is presented by achieving place recognition and metric pose estimation in the global prior map. Specifically, we present a semi-handcrafted representation learning method for LiDAR point clouds using siamese LocNets, which states the place recognition problem to a similarity modeling problem. With the final learned representations by LocNet, a global localization framework with range-only observations is proposed. To demonstrate the performance and effectiveness of our global localization system, KITTI dataset is employed for comparison with other algorithms, and also on our long-time multi-session datasets for evaluation. The result shows that our system can achieve high accuracy.
description: 6 pages, IV 2018 accepted
Modified trace is a symmetrised integral
Creators: name: Beliakova, Anna
name: Blanchet, Christian
name: Gainutdinov, Azat M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Algebra (math.QA)
subject: Category Theory (math.CT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: A modified trace for a finite k-linear pivotal category is a family of linear forms on endomorphism spaces of projective objects which has cyclicity and so-called partial trace properties. We show that a non-degenerate modified trace defines a compatible with duality Calabi-Yau structure on the subcategory of projective objects. The modified trace provides a meaningful generalisation of the categorical trace to non-semisimple categories and allows to construct interesting topological invariants. We prove, that for any finite-dimensional unimodular pivotal Hopf algebra over a field k, a modified trace is determined by a symmetric linear form on the Hopf algebra constructed from an integral. More precisely, we prove that shifting with the pivotal element defines an isomorphism between the space of right integrals, which is known to be 1-dimensional, and the space of modified traces. This result allows us to compute modified traces for all simply laced restricted quantum groups at roots of unity.
description: 47 pages, v2: Sec 5 shortened, typos fixed and few references added and updated
Self-similar galaxy dynamics below the de Sitter scale of acceleration
Creators: name: van Putten, Maurice H. P. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Radial accelerations $α$ in galaxy dynamics are now observed over an extended range in redshift that includes model calculations on galactic distributions of cold dark matter (CDM) in $Λ$CDM. In a compilation of data of the {\em Spitzer} Photometry and Accurate Rotation Curves (SPARC) catalogue, the recent sample of Genzel et al.(2017) and the McMaster Unbiased Galaxy Simulations 2, we report on effective self-similarity in the variable $ζ= a_N/a_{dS}$, given by the Newtonian acceleration $a_N$ based on baryonic matter content over the de Sitter scale of acceleration $a_{dS}=cH$, where $c$ is the velocity of light and $H$ is the Hubble parameter. SPARC, MUG2 and theory satisfy ${a_N}/α \simeq 2.1\,ζ^\frac{1}{2}$ $(ζ<<1)$. At $ζ=1$ in transition to Newtonian gravity ($ζ>>1$), however, there is a $6σ$ gap between SPARC and MUGS2. This poses a novel challenge to CDM in $Λ$CDM against the apparent $C^0$ galaxy dynamics observed in SPARC. We attribute the latter to reduced inertia below the de Sitter scale of acceleration $(ζ< 1)$, based on a causality constraint imposed by the cosmological horizon ${\cal H}$.
description: published version (4 pages, 3 figures) of APS April 2018 talk, Session K13
Cardiovascular Genetics and Metabolics: Exploring Underlying Mechanisms for Personalizing Treatment Strategies in Atrial Fibrillation
Creators: name: Chalazan, Brandon
Publisher: name: Royal College of Surgeons in Ireland
Year: 2022
Subjects: subject: 110311 Medical Genetics (excl. Cancer Genetics)
subject: FOS: Basic medicine
subject: 110107 Metabolic Medicine
subject: FOS: Clinical medicine

description: Background: Over the last two decades, genome wide association studies (GWAS) have identified over 100 atrial fibrillation (AF) susceptible loci and family based studies have uncovered multiple mutations in cardiac ion channels, structural proteins, transcription factors and signalling molecules. Although genetic approaches for AF have provided important insights into the underlying pathophysiology, the pathophysiological mechanisms and response to therapy are poorly understood especially in diverse populations.
Objective: To better understand the underlying genetic, molecular and electrophysiological mechanisms for AF.
Methods: We recruited several hundred multi-ethnic patients with familial and early-onset AF into a clinical and genetic biorepository. Targeted genotyping of AF risk single nucleotide polymorphisms (SNP) and sequencing candidate genes was performed. We also performed comprehensive molecular, transcriptomic and electrophysiologic analyses of retinoic acid (RA) guided human induced pluripotent stem cell (hiPSC) atrial cardiomyocytes (CM). We further characterized the electrophysiological phenotype of gain-of-function (GOF) AF-linked SCN5A mutations, elucidated the underlying cellular mechanisms and assessed mechanism-based therapies using patient-specific atrial hiPSC-CMs.
Results: We showed that probands of African and Hispanic descent with early-onset AF were more likely to have a first-degree relative with AF, supporting a genetic predisposition across diverse populations. Our studies also identified a common SNP at the chromosome (chr) 4q25 locus to be strongly associated with AF. Sequencing candidate genes for AF identified a small proportion of early-onset AF probands who contained a disease-causing mutation with the majority located in the gene (TTN) that encodes for Titin. We also further demonstrate in our studies a mechanism by which RA generates an atrial electrophysiological signature through the downstream regulation of calcium channel gene expression by COUP-TFII. Using patient-specific atrial hiPSC-CMs, we established a mechanistic link between triggered AF and enhanced late sodium current from an AF-causing SCN5A GOF mutation.
Conclusion: A substantial proportion of AF cannot be explained by traditional AF risk factors and strongly implicates an interaction between the environment and genetics. Collectively, our results support genetic testing in patients with well-defined familial AF and early-onset AF. It also supports using atrial hiPSC-CMs to model AF-causing mutations with the goal of identifying the underlying cellular mechanisms and uncovering new mechanism-based therapy to enable a personalized treatment approach in AF.
Scaling Under Dynamic Uncertainty Using Laws of Growth
Creators: name: Lotz, Julian
name: Kloberdanz, Hermann
Publisher: name: Technical University of Denmark, DTU
Year: 2014

description: This paper gives an overview of methods used to describe uncertainty in size range development. Laws of growth, scenario laws of growth and probabilistic laws of growth are extended to allow the calculation of dynamic, size-dependent product behaviour. Dynamic product behaviour can depend on time or load cycles, such as corrosion and wear. Effects such as these can be size-dependent, an issue that is also considered in this paper. The extended methods are explained using a pushrod as an example product.
Weihnachtsgottesdienst von LuK und HuK am 21.12.94 in der Hospitalkirche Stuttgart
Publisher: name: Werkstatt Schwule Theologie
Year: 1970

description: Werkstatt Schwule Theologie, Bd. 2 Nr. 1 (1995): Werkstatt Schwule Theologie, Band 2, Heft 1
NOMA for Integrating Sensing and Communications towards 6G: A Multiple Access Perspective
Creators: name: Mu, Xidong
name: Wang, Zhaolin
name: Liu, Yuanwei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This article focuses on the development of integrated sensing and communications (ISAC) from a multiple access (MA) perspective, where the idea of non-orthogonal multiple access (NOMA) is exploited for harmoniously accommodating the sensing and communication functionalities. We first reveal that the developing trend of ISAC is from \emph{orthogonality} to \emph{non-orthogonality}, and introduce the fundamental models of the downlink and uplink ISAC while identifying the design challenges from the MA perspective. (1) For the downlink ISAC, we propose two novel designs, namely \emph{NOMA-empowered} downlink ISAC and \emph{NOMA-inspired} downlink ISAC to effectively coordinate the inter-user interference and the sensing-to-communication interference, respectively. (2) For the uplink ISAC, we first propose a \emph{pure-NOMA-based} uplink ISAC design, where a fixed communication-to-sensing successive interference cancellation order is employed for distinguishing the mixed sensing-communication signal received over the fully shared radio resources. Then, we propose a general \emph{semi-NOMA-based} uplink ISAC design, which includes the conventional orthogonal multiple access-based and pure-NOMA-based uplink ISAC as special cases, thus being capable of providing flexible resource allocation strategies between sensing and communication. Along each proposed NOMA-ISAC design, numerical results are provided for showing the superiority over conventional ISAC designs.
description: 7 pages, 5 figures
Female Education, Contraceptive Use, and Fertility: Evidence from Uganda
Creators: name: Bbaale, Edward
name: Mpuga, Paul
Publisher: name: Columbia University
Year: 2011
Subjects: Contraceptives
Women--Education (Secondary)
Fertility, Human
Educational change
Women--Education
Women's studies

description: We use the Demographic and Health Survey of 2006 to examine the relationship between female education, contraceptive use, and fertility rates in Uganda. Our findings reveal that female education, especially at the secondary and post-secondary levels, increases the likelihood of using contraceptives and reduces fertility. As a result, measures that aim to educate women beyond secondary level are needed. The government programme to extend free education at the secondary level is an important measure that may help to reduce fertility and should therefore be strengthened.
ICT and Competitiveness of the Macedonian Economy
Creators: name: Kostoska, Olivera
name: Mitrevski, Pece
name: Hristoski, Ilija
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: The ongoing process of liberalization, as well as the intensive technological breakthrough have a great impact either on the macroeconomic policy creators, or the dissimilarity of conventional approach to found a strategy of a certain company. Bearing in mind the very notation, core characteristics of the concept of competitiveness are needed to be explored, but also the necessity to establish a national competitiveness strategy. However, the main attention should be paid on the technological changes that affect the economic growth, but the life standard increase, as well. Nevertheless, developing and transitional economies are being down-sided with respect to the technological and innovative capability that measurably implies the necessity to redefine the conception of competitiveness. Taking into account the above clarifications, the paper will set a comparative analysis of the key factors that pressure the competitiveness of Balkans region countries, mainly by the composition of the Growth Competitiveness Index. In addition, the major accent will be put on the composite Technology index and its impact on the mainstream of the respective total index. Finally, the paper will examine the possible change of Growth Competitiveness Index ranking of the Macedonian economy, principally by the variation of the Technology index rank.
Uniform Asymptotics and Confidence Regions Based on the Adaptive Lasso with Partially Consistent Tuning
Creators: name: Amann, Nicolai
name: Schneider, Ulrike
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We consider the adaptive Lasso estimator with componentwise tuning in the framework of a low-dimensional linear regression model. In our setting, at least one of the components is penalized at the rate of consistent model selection and certain components may not be penalized at all. We perform a detailed study of the consistency properties and the asymptotic distribution which includes the effects of componentwise tuning within a so-called moving-parameter framework. These results enable us to explicitly provide a set $\mathcal{M}$ such that every open superset acts as a confidence set with uniform asymptotic coverage equal to 1, whereas removing an arbitrarily small open set along the boundary yields a confidence set with uniform asymptotic coverage equal to 0. The shape of the set $\mathcal{M}$ depends on the regressor matrix as well as the deviations within the componentwise tuning parameters. Our findings can be viewed as a broad generalization of Pötscher & Schneider (2009, 2010) who considered distributional properties and confidence intervals based on components of the adaptive Lasso estimator for the case of orthogonal regressors.
Lipschitz null-homotopy of mappings $S^3 \rightarrow S^2$
Creators: name: Berdnikov, Aleksandr
Publisher: name: arXiv
Year: 2018
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 51H20, 57M25

description: This work focuses on important step in quantitative topology: given homotopic mappings from $S^m$ to $S^n$ of Lipschitz constant $L$, build the (asymptotically) simplest homotopy between them (meaning having the least Lipschitz constant). The present paper resolves this problem for the first case where Hopf invariant plays a role: $m = 3$, $n = 2$, constructing a homotopy with Lipschitz constant $O(L)$
description: 27 pages, 20 figures
On the higher-spin charges of conical defects
Creators: name: Campoleoni, Andrea
name: Fredenhagen, Stefan
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The conical defect solutions in higher-spin gauge theories on 2+1 dimensional space-times with AdS-asymptotics are conjectured to correspond to certain primary fields in the dual conformal field theory on the boundary. In this note we prove that indeed all higher-spin charges match.
description: 7 pages
Linking high and low temperature plasticity in bulk metallic glasses II: use of a log-normal barrier energy distribution and a mean field description of high temperature plasticity
Creators: name: Derlet, P. M.
name: Maass, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A thermal activation model to describe the plasticity of bulk metallic glasses (Derlet and Maaß, Phil. Mag. 2013, DOI: 10.1080/14786435.2013.826396) which uses a distribution of barrier energies and some aspects of under-cooled liquid physics is developed further. In particular, a log-normal distribution is now employed to describe the statistics of barrier energies. A high temperature mean-field description of homogeneous macro-plasticity is then developed and is shown to be similar to a thermal activation picture employing a single characteristic activation energy and activation volume. In making this comparison, the activation volume is interpreted as being proportional to the average mean-square-value of the plastic shear strain magnitude within the material. Also, the kinetic fragility at the glass transition temperature is shown to represent the effective number of irreversible structural transformations available at that temperature.
description: 28 pages, 2 figures
Contribution of alpha- and beta-defensins to lung function decline and infection in smokers: an association study
Creators: name: Wallace, Alison
name: He, Jian-Qing
name: Burkett, Kelly
name: Ruan, Jian
name: Connett, John
name: Anthonisen, Nicholas
name: Paré, Peter
name: Sandford, Andrew
Publisher: name: Columbia University
Year: 2006
Subjects: Genetic polymorphisms
Lungs--Diseases, Obstructive
Biology
Epidemiology

description: Background: Alpha-defensins, which are major constituents of neutrophil azurophilic granules, and beta-defensins, which are expressed in airway epithelial cells, could contribute to the pathogenesis of chronic obstructive pulmonary disease by amplifying cigarette smoke-induced and infection-induced inflammatory reactions leading to lung injury. In Japanese and Chinese populations, two different beta-defensin-1 polymorphisms have been associated with chronic obstructive pulmonary disease phenotypes. We conducted population-based association studies to test whether alpha-defensin and beta-defensin polymorphisms influenced smokers' susceptibility to lung function decline and susceptibility to lower respiratory infection in two groups of white participants in the Lung Health Study (275 = fast decline in lung function and 304 = no decline in lung function).

Methods: Subjects were genotyped for the alpha-defensin-1/alpha-defensin-3 copy number polymorphism and four beta-defensin-1 polymorphisms (G-20A, C-44G, G-52A and Val38Ile).

Results: There were no associations between individual polymorphisms or imputed haplotypes and rate of decline in lung function or susceptibility to infection.

Conclusion: These findings suggest that, in a white population, the defensin polymorphisms tested may not be of importance in determining who develops abnormally rapid lung function decline or is susceptible to developing lower respiratory infections.
Smooth quotients of principally polarized abelian varieties
Creators: name: Auffarth, Robert
name: Arteche, Giancarlo Lucchini
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: primary 14L30, 14K10, secondary 14H37, 14H40

description: We give an explicit characterization of all principally polarized abelian varieties $(A,Θ)$ such that there is a finite subgroup of automorphisms $G$ of $A$ that preserve the numerical class of $Θ$, and such that the quotient variety $A/G$ is smooth. We also give a complete classification of smooth quotients of Jacobians of curves.
description: FInal version :)
Measuring the Orbital Angular Momentum of Electron Beams
Creators: name: Guzzinati, Giulio
name: Clark, Laura
name: Béché, Armand
name: Verbeeck, Jo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The recent demonstration of electron vortex beams has opened up the new possibility of studying orbital angular momentum (OAM) in the interaction between electron beams and matter. To this aim, methods to analyze the OAM of an electron beam are fundamentally important and a necessary next step. We demonstrate the measurement of electron beam OAM through a variety of techniques. The use of forked holographic masks, diffraction from geometric apertures, diffraction from a knife-edge and the application of an astigmatic lens are all experimentally demonstrated. The viability and limitations of each are discussed with supporting numerical simulations.
description: 5 pages, 4 figurse