cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exact solutions of few-magnon problems in the spin-$S$ periodic XXZ chain
Creators: name: Wu, Ning
name: Katsura, Hosho
name: Li, Sheng-Wen
name: Cai, Xiaoming
name: Guan, Xi-Wen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We solve few-magnon problems for a finite-size spin-$S$ periodic Heisenberg XXZ chain with single-ion anisotropy through constructing sets of exact Bloch states achieving block diagonalization of the system. Concretely, the two-magnon (three-magnon) problem is converted to a single-particle one on a one-dimensional (two-dimensional) effective lattice whose size depends linearly (quadratically) on the total number of sites. For parameters lying within certain ranges, various types of multimagnon bound states are manifested and shown to correspond to edge states on the effective lattices. In the absence of the single-ion anisotropy, we reveal the condition under which exact zero-energy states emerge. As applications of the formalism, we calculate the transverse dynamic structure factor for a higher-spin chain near saturation magnetization and find signatures of the multimagnon bound states. We also calculate the real-time three-magnon dynamics from certain localized states, which are relevant to cold-atom quantum simulations, by simulating single-particle quantum walks on the effective lattices. This provides a physically transparent interpretation of the observed dynamics in terms of propagation of bound state excitations. Our method can be directly applied to more general spin or itinerant particle systems possessing translational symmetry.
description: 15 pages, 10 figures, published version
Predicting Photometric and Spectroscopic Signatures of Rings around Transiting Extrasolar Planets
Creators: name: Ohta, Yasuhiro
name: Taruya, Atsushi
name: Suto, Yasushi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present theoretical predictions for photometric and spectroscopic signatures of rings around transiting extrasolar planets. On the basis of a general formulation for the transiting signature in the stellar light curve and the velocity anomaly due to the Rossiter effect, we compute the expected signals analytically for a face-on ring system, and numerically for more general configurations. We study the detectability of a ring around a transiting planet located at a=3AU for a variety of obliquity and azimuthal angles, and find that it is possible to detect the ring signature both photometrically and spectroscopically unless the ring is almost edge-on (i.e., the obliquity angle of the ring θis much less than unity). We also consider the detectability of planetary rings around a close-in planet, HD 209458b ($θ\approx 90^\circ-i_{\rm orbit} \approx 3^\circ.32$), and Saturn ($θ\approx 26^\circ.7$) as illustrative examples. While the former is difficult to detect with the current precision (photometric precision of 10^-4 and radial velocity precision of 1 m/s), a marginal detection of the latter is possible photometrically. If the future precision of the radial velocity measurement reaches even below 0.1 m/s, they will be even detectable from the ground-based spectroscopic observations.
description: 29 pages, 20 figures, accepted to ApJ
ТЕХНОЛОГИЯ ПРЕДМЕТНО-ЯЗЫКОВОГО ИНТЕГРИРОВАННОГО ОБУЧЕНИЯ ИНОСТРАННОМУ ЯЗЫКУ СТУДЕНТОВ-МЕДИКОВ
Creators: name: Е.Б. Кузнецова
Publisher: name: Международный журнал гуманитарных и естественных наук
Year: 2021
Subjects: интегрированное обучение
иностранный язык
предметно-языковое обучение
врач
медицинский работник
компетенция
профессиональная коммуникация
английский язык
университет
медицина

description: Автор статьи выдвигает предположение о том, что эффективным способом овладения иноязычной коммуникативной компетенцией (ИКК) в области иностранного языка медицинских работников за короткое время в наши дни становится предметно-языковое интегрированное обучение (ПЯИО). По нашему мнению, использование технологии предметно-языкового интегрированного обучения (ПЯИО) позволяет будущим специалистам, чья профессия не связана с иностранным языком, научиться использовать его для достижения профессиональных целей, а не изучать как систему, без практического использования. Описав дидактический потенциал технологии предметно-языкового интегрированного обучения иностранному языку, мы разработали модель предметно-языкового интегрированного обучения иностранному языку студентов медицинского вуза, описали педагогические условия повышения эффективности процесса формирования иноязычной коммуникативной компетенции при использовании технологии ПЯИО и данной модели. Полученные результаты позволяют утверждать, что предметно-языковое интегрированное обучение способствует овладению ИКК, прописанной во ФГОС (Федеральным государственным стандартом) в условиях недостаточного количества времени, отведённого дисциплине «иностранный язык» в неязыковом вузе и предъявляемых требований к практическому применению иностранного языка.
Additional file 7 of Genomic epidemiology of the Los Angeles COVID-19 outbreak and the early history of the B.1.43 strain in the USA
Creators: name: Guo, Longhua
name: Boocock, James
name: Hilt, Evann E.
name: Chandrasekaran, Sukantha
name: Zhang, Yi
name: Munugala, Chetan
name: Sathe, Laila
name: Alexander, Noah
name: Arboleda, Valerie A.
name: Flint, Jonathan
name: Eskin, Eleazar
name: Luo, Chongyuan
name: Yang, Shangxin
name: Garner, Omai B.
name: Yin, Yi
name: Bloom, Joshua S.
name: Kruglyak, Leonid
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 7.
Exact 1/4 BPS Loop - Chiral Primary Correlator
Creators: name: Semenoff, Gordon W.
name: Young, Donovan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Correlation functions of 1/4 BPS Wilson loops with the infinite family of 1/2 BPS chiral primary operators are computed in $\mathcal{N}=4$ super Yang-Mills theory by summing planar ladder diagrams. Leading loop corrections to the sum are shown to vanish. The correlation functions are also computed in the strong-coupling limit by examining the supergravity dual of the loop-loop correlator. The strong coupling result is found to agree with the extrapolation of the planar ladders. The result is related to known correlators of 1/2 BPS Wilson loops and 1/2 BPS chiral primaries by a simple re-scaling of the coupling constant, similar to an observation of Drukker, hep-th/0605151, for the case of the 1/4 BPS loop vacuum expectation value.
description: 17 pages, 4 figures, a few minor typos corrected
Bennett and Stinespring, Together at Last
Creators: name: Heunen, Chris
name: Kaarsgaard, Robin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Logic in Computer Science (cs.LO)
subject: Category Theory (math.CT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We present a universal construction that relates reversible dynamics on open systems to arbitrary dynamics on closed systems: the restriction affine completion of a monoidal restriction category quotiented by well-pointedness. This categorical completion encompasses both quantum channels, via Stinespring dilation, and classical computing, via Bennett's method. Moreover, in these two cases, we show how our construction can be essentially 'undone' by a further universal construction. This shows how both mixed quantum theory and classical computation rest on entirely reversible foundations.
description: In Proceedings QPL 2021, arXiv:2109.04886
Spherical Couette flow in a dipolar magnetic field
Creators: name: Hollerbach, Rainer
name: Canet, Elisabeth
name: Fournier, Alexandre
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geophysics (physics.geo-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We consider numerically the flow of an electrically conducting fluid in a differentially rotating spherical shell, in a dipolar magnetic field. For infinitesimal differential rotation the flow consists of a super-rotating region, concentrated on the particular field line C just touching the outer sphere, in agreement with previous results. Finite differential rotation suppresses this super-rotation, and pushes it inward, toward the equator of the inner sphere. For sufficiently strong differential rotation the outer boundary layer becomes unstable, yielding time-dependent solutions. Adding an overall rotation suppresses these instabilities again. The results are in qualitative agreement with the DTS liquid sodium experiment.
Long-distance entanglement in spin systems
Creators: name: Venuti, L. Campos
name: Boschi, C. Degli Esposti
name: Roncaglia, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Most quantum system with short-ranged interactions show a fast decay of entanglement with the distance. In this Letter, we focus on the peculiarity of some systems to distribute entanglement between distant parties. Even in realistic models, like the spin-1 Heisenberg chain, sizable entanglement is present between arbitrarily distant particles. We show that long distance entanglement appears for values of the microscopic parameters which do not coincide with known quantum critical points, hence signaling a transition detected only by genuine quantum correlations.
description: RevTex, 5 pages, 7 .eps figures Two references added in published version
Conditional Distributions for Quantum Systems
Creators: name: Parzygnat, Arthur J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: Category Theory (math.CT)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Conditional distributions, as defined by the Markov category framework, are studied in the setting of matrix algebras (quantum systems). Their construction as linear unital maps are obtained via a categorical Bayesian inversion procedure. Simple criteria establishing when such linear maps are positive are obtained. Several examples are provided, including the standard EPR scenario, where the EPR correlations are reproduced in a purely compositional (categorical) manner. A comparison between the Bayes map, the Petz recovery map, and the Leifer-Spekkens acausal belief propagation is provided, illustrating some similarities and key differences.
description: In Proceedings QPL 2021, arXiv:2109.04886
Application of convolutional neural network for leukocyte quantification from a smartphone based microfluidic biosensor
Creators: name: Govindaraju, Harshitha
Publisher: name: No Publisher Supplied
Year: 2021

description: Advancements in computer vision methodologies and machine learning in the medical domain have played a major role in diagnostics and clinical pathology. Cell quantification from whole blood can aid in detecting and managing infections, cardiovascular diseases and biomarker detection which in turn helps in understanding the immunological and genetic disorders, cancers, etc. Developing a point-of-care solution for this will accelerate the therapy timeline and increase the accessibility across the world. Our lab has previously developed a smartphone based microfluidic biosensor for capturing the microscopic images of various components of the blood cells. Using this design, in this study, a deep learning-based cell quantification from the captured images is investigated and the cell counts are predicted using a convolutional neural network architecture. The proposed methodology was evaluated on a dataset varying in numbers, clarity, smartphones, fluorophores and cell numbers. This model was then integrated into an Application Programming Interface (API) to predict the cell counts from an image using the trained model. Our results showed successful prediction of cell counts from a smartphone captured image in cross-validation with R2 = 0.99 for N=33. This helps in eliminating the need for manual pre-processing of an image and morphological methods for cell counting which is a user-skill based approach. This proposed Deep Learning based cell quantification has shown agility and more automated process when compared to the benchmark techniques.
AUTIZM SINDROMIGA CHALINGAN BOLALARNI O'QITISHDA RAQAMLI TEXNOLOGIYALARNING O'RNI
Creators: name: Xamroyev, Jamshid
name: Xodjaniyazova, Laylo
Publisher: name: Zenodo
Year: 2024

description: Autizm sindromiga chalingan bolalarning raqamli texnologiyalardan foydalangan holda o`qitish orqali ularning tasavvurini va fazoviy fikrlashni rivojlantirish shu bilan birgalikda vizualizatsiya orqali ularning dunyoqarash kabi qobilyatlari va o’zlashtirishni yanada rivojlantirishga erishishdir.
Quantum Non-Hermitian Topological Sensors
Creators: name: Koch, Florian
name: Budich, Jan Carl
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate in the framework of quantum noise theory how the striking boundary-sensitivity recently discovered in the context of non-Hermitian (NH) topological phases may be harnessed to devise novel quantum sensors. Specifically, we study a quantum-optical setting of coupled modes arranged in an array with broken ring geometry that would realize a NH topological phase in the classical limit. Using methods from quantum-information theory of Gaussian states, we show that a small coupling induced between the ends of the broken ring may be detected with a precision that increases exponentially in the number of coupled modes, e.g. by heterodyne detection of two output modes. While this robust effect only relies on reaching a NH topological regime, we identify a resonance phenomenon without direct classical counterpart that provides an experimental knob for drastically enhancing the aforementioned exponential growth. Our findings pave the way towards designing quantum NH topological sensors (QUANTOS) that may observe with high precision any physical observable that couples to the boundary conditions of the device.
description: 5+4 pages, 4 figures, v2: updated to the published version
Observations of AGNs using PACT
Creators: name: Bose, D.
name: Chitnis, V. R.
name: Vishwanath, P. R.
name: Majumdar, P.
name: Rahman, M. A.
name: Singh, B. B.
name: Gupta, A. C.
name: Acharya, B. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report our observations on 4 AGNs viz, Mkn421, Mkn501, 1ES1426+428 and ON231 belonging to a sub-class called blazars. The observations were carried out using the Pachmarhi Array of Cherenkov Telescopes and span about 6 years period from 2000 to 2005. We discuss our methods of analysis adopted to extract the gamma ray signal from cosmic ray background. We present our results on the emission of TeV gamma rays from these objects. Also, we report on the status of the new high altitude experiment, a 7 telescope array at Hanle in the Himalayas at an altitude of about 4200 m above mean sea level for detecting celestial gamma rays.
description: to appear in 'Astrophysics and Space Science' as proceedings in the 'Multi-Messenger Approach to High Energy Gamma-ray Sources'
Shear jamming and fragility of suspensions in a continuum model with elastic constraints
Creators: name: Giusteri, Giulio G.
name: Seto, Ryohei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 76A05 (Primary) 76A10 (Secondary)

description: Under an applied traction, highly concentrated suspensions of solid particles in fluids can turn from a state in which they flow to a state in which they counteract the traction as an elastic solid: a shear-jammed state. Remarkably, the suspension can turn back to the flowing state simply by inverting the traction. A tensorial model is presented and tested in paradigmatic cases. We show that, to reproduce the phenomenology of shear jamming in generic geometries, it is necessary to link this effect to the elastic response supported by the suspension microstructure rather than to a divergence of the viscosity.
description: Updated figures and included Supplemental material
Conditional-sum-of-squares estimation of models for stationary time series with long memory
Creators: name: Robinson, P. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62M10 (Primary)

description: Employing recent results of Robinson (2005) we consider the asymptotic properties of conditional-sum-of-squares (CSS) estimates of parametric models for stationary time series with long memory. CSS estimation has been considered as a rival to Gaussian maximum likelihood and Whittle estimation of time series models. The latter kinds of estimate have been rigorously shown to be asymptotically normally distributed in case of long memory. However, CSS estimates, which should have the same asymptotic distributional properties under similar conditions, have not received comparable treatment: the truncation of the infinite autoregressive representation inherent in CSS estimation has been essentially ignored in proofs of asymptotic normality. Unlike in short memory models it is not straightforward to show the truncation has negligible effect.
description: Published at http://dx.doi.org/10.1214/074921706000000996 in the IMS Lecture Notes Monograph Series (http://www.imstat.org/publications/lecnotes.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
The Role of Invariant Functions in Understanding Masses and Mixings
Creators: name: Jarlskog, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: One of the central questions in theoretical particle physics, since already several decades, has been that of "masses and mixings of the quarks. With the entry of neutrino oscillations into the field, the issue of lepton masses has added a new dimension to the problem. In the literature one finds many models of quark and lepton mass matrices. However, the mass and mixing problems remain unsolved. In this talk I will present my own contributions to this field, however as you may expect without offering a solution. I encourage you to go ahead and think about the problem but be aware of the pitfalls.
description: Talk presented at the conference SNOW 2006
Quantum covariant c-map
Creators: name: Alexandrov, Sergei
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalize the covariant c-map found in hep-th/0701214 including perturbative quantum corrections. We also perform explicitly the superconformal quotient from the hyperkahler cone obtained by the quantum c-map to the quaternion-Kahler space, which is the moduli space of hypermultiplets. As a result, the perturbatively corrected metric on the moduli space is found in a simplified form comparing to the expression known in the literature.
description: 16 pages; references added; details on evaluation of the tensor lagrangian added
Cosmic variance of $H_0$ in light of forthcoming high-redshift surveys
Creators: name: Fanizza, Giuseppe
name: Fiorini, Bartolomeo
name: Marozzi, Giovanni
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Forthcoming surveys will extend the understanding of cosmological large scale structures up to unprecedented redshift. According to this perspective, we present a fully relativistic framework to evaluate the impact of stochastic inhomogeneities on the determination of the Hubble constant. To this aim, we work within linear perturbation theory and relate the fluctuations of the luminosity distance-redshift relation, in the Cosmic Concordance model, to the intrinsic uncertainty associated to the measurement of $H_0$ from high-redshift surveys ($0.15\le z\le3.85$). We first present the detailed derivation of the luminosity distance-redshift relation 2-point correlation function and then provide analytical results for all the involved relativistic effects, such as peculiar velocity, lensing, time delay and (integrated) Sachs-Wolfe, and their angular spectra. Hence, we apply our analytical results to the study of high-redshift Hubble diagram, according to what has been recently claimed in literature. Following the specific of Euclid Deep Survey and LSST, we conclude that the cosmic variance associated with the measurement of the Hubble constant is at most of 0.1 %. Our work extends the analysis already done in literature for closer sources, where only peculiar velocity has been taken into account. We then conclude that deep surveys will provide an estimation of the $H_0$ which will be more precise than the one obtained from local sources, at least in regard of the intrinsic uncertainty related to a stochastic distribution of inhomogeneities.
description: 26 pages, 9 figures. Typos fixed. Comments and references added. Version accepted for publication in Physical Review D
Úvod do Open Research Europe (ORE)
Creators: name: Kamburovová, Jaroslava
Publisher: name: Zenodo
Year: 2021
Subjects: open access
open science
Open Research Europe

description: Informační leták představující platformu Evropské komise Open Research Europe (ORE). Připravila fakultní koordinátorka Fakulty tělesné výchovy a sportu Univerzity Karlovy.
Every quantum minor generates an Ore set
Creators: name: Škoda, Zoran
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: The subset multiplicatively generated by any given set of quantum minors and the unit element in the quantum matrix bialgebra satisfies the left and right Ore conditions.
description: 7 pages; v2: Lemma 1 corrected; part Lemma 1 (iii) added
Η θρησκευτικότητα των Καππαδοκών:
Creators: name: Ιατρίδης, Βαρθολομαίος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Καππαδοκία
Θρησκευτικότητα
Μνημεία Καππαδοκίας
Kappadocia
Religious sentiments
Monuments from Cappadocia in Greece

description: Η Καππαδοκία γνώρισε ποικίλες εισβολές κατά την Αρχαιότητα, ενώ αργότερα ακολούθησε η Ρωμαϊκή κατάκτηση, η βυζαντινή περίοδος ως τα τέλη του 12ου αιώνος, οπότε την περιοχή κατέλαβαν οι Σελτζούκοι και μετά οι Οθωμανοί. Τότε σημειώθηκε και η τουρκοφωνία των Καππαδοκών, οι οποίοι κράτησαν την ορθόδοξη πίστη τους. Αυτό εκφράστηκε με τη θρησκευτικότητά τους που αποτυπώνεται στα ήθη, τα έθιμα, τις εορτές, τα πετρομονάστηρα, τα καραμανλίδικα βιβλία. Η θρησκευτικότητά τους ενισχύθηκε μετά τις οθωμανικές μεταρρυθμίσεις (μέσα 19ου αιώνος) και παρά τη δράση των ξένων θρησκευτικών προπαγανδών. Αυτή την πίστη οι Καππαδόκες μετέφεραν στην Ελλάδα μετά την Ανταλλαγή των πληθυσμών το 1923 όταν έφεραν τα λείψανα των Αγίων τους.
description: Kappadocia for his situation continued his particular existence under the roman, byzantin and ottoman rule as has done in the previous centuries. Thanks to the uninterrupted presence of the greek orthodox element until 1922 a nucleus christian tradition was formed there since the era of Kappadocians Fathers (IVth c.) This tradition created the religious sentiments of Greek Kappadocians expressed by the numberous monasteries errected in different places as Goreme, Soganli, Gelveri, and the publications of books dialected Karamanlidika, thanks to the Greeks Kappadocians speakers. After the Tanzimat a cultural activity was flowerisching in the area of Kappadocia by the erection of churches, schools, houses, until the exchange of populations in 1923. Finally, the Kappadocians as refugees in Greece continued, and are continuing their cultural and religious tradition.
Volume and Monge-Ampère energy on polarized affine varieties
Creators: name: Wu, Yueqiao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Let $(X, ξ)$ be a polarized affine variety, i.e. an affine variety $X$ with a (possibly irrational) Reeb vector field $ξ$. We define the volume of a filtration of the coordinate ring of $X$ in terms of the asymptotics of the average of jumping numbers. When the filtration is finitely generated, it induces a Fubini-Study function $φ$ on the Berkovich analytification of $X$. In this case, we define the Monge-Ampère energy for $φ$ using the theory of forms and currents on Berkovich spaces developed by Chambert-Loir and Ducros, and show that it agrees with the volume of the filtration. In the special case when the filtration comes from a test configuration, we recover the functional defined by Collins-Székelyhidi and Li-Xu.
description: Final version: corrected a few dimensional constants
Effects of rapid prey evolution on predator-prey cycles
Creators: name: Jones, Laura E.
name: Ellner, Stephen P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: We study the qualitative properties of population cycles in a predator-prey system where genetic variability allows contemporary rapid evolution of the prey. Previous numerical studies have found that prey evolution in response to changing predation risk can have major quantitative and qualitative effects on predator-prey cycles, including: (i) large increases in cycle period, (ii) changes in phase relations (so that predator and prey are cycling exactly out of phase, rather than the classical quarter-period phase lag), and (iii) "cryptic" cycles in which total prey density remains nearly constant while predator density and prey traits cycle. Here we focus on a chemostat model motivated by our experimental system [Fussmann et al. 2000,Yoshida et al. 2003] with algae (prey) and rotifers (predators), in which the prey exhibit rapid evolution in their level of defense against predation. We show that the effects of rapid prey evolution are robust and general, and furthermore that they occur in a specific but biologically relevant region of parameter space: when traits that greatly reduce predation risk are relatively cheap (in terms of reductions in other fitness components), when there is coexistence between the two prey types and the predator, and when the interaction between predators and undefended prey alone would produce cycles. Because defense has been shown to be inexpensive, even cost-free, in a number of systems [Andersson and Levin 1999, Gagneux et al. 2006,Yoshida et al. 2004], our discoveries may well be reproduced in other model systems, and in nature. Finally, some of our key results are extended to a general model in which functional forms for the predation rate and prey birth rate are not specified.
description: 35 pages, 8 figures
Topological semantics of conservativity and interpretability logics
Creators: name: Iwata, Sohei
name: Kurahashi, Taishi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: We introduce and develop a topological semantics of conservativity logics and interpretability logics. We prove the topological compactness theorem of consistent normal extensions of the conservativity logic $\mathbf{CL}$ by extending Shehtman's ultrabouquet construction method to our framework. As a consequence, we prove that several extensions of $\mathbf{CL}$ such as $\mathbf{IL}$, $\mathbf{ILM}$, $\mathbf{ILP}$ and $\mathbf{ILW}$ are strongly complete with respect to our topological semantics.
description: 28 pages
Selected Perceptions of Anglophone Teachers Trade Union Members
Creators: name: Cedric Kamgna, Che Tita, Jean Paul Mbia, Constance Hollie
Publisher: name: Zenodo
Year: 2024

description: The aim of this qualitative case study is to explore CATTU members’ perception about the servicesrendered by their union. To achieve this, we used the case study research design to interview unionmembers in the city of Buea and Douala. Our data collection method was face to face and telephoneinterviews for a sampling population of twenty union members. The result of the study revealed thatindustrial unions like CATTU in Cameroon though in existence, are not really effective on the field.Their role can be said to be weak in the field of labor relations. This can be partly explained by the facttheir autonomy as a bargaining institution is very limited. This limitation can be explained by the factthey find themselves stuck in between a laissez faire economy where those who own the means ofproduction determine everything and the post-colonial State which both narrow down their range ofaction. By so doing, they are limited them to the role of mediation- a mediation done within theframework of the government that perceives their actions as subversive and doing everything tocontrol them.
Prone Versus Supine Traction in Treatment of CervicalDisc Bulge: A Randomized Controlled Trial
Creators: name: Karkousha, Rania
name: Aboulfotouh Elsayed Abdallah, Ahmed
name: Hassan Abdelkader, Wadida
name: M. El Azizi, Hatem
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 420106
subject: Physiotherapy

description: Disc bulge could lead to compression on adjacent nerve root causing neurological deficits. The purpose of this study is to compare between the effect of prone traction versus supine traction on the neck function and on the size of disc bulge in patients with cervical disc bulge.
1 THEORY AND METHODOLOGY FOR ORGANIZING DRAWING LESSONS THROUGH A PEN FOR STUDENTS OF THE COURSE
Creators: name: Azizova, Xilola
Publisher: name: Zenodo
Year: 2024

description: In the areas of Fine Arts of higher educational institutions, such a framework as the formation of professional skills and literacy in painting, a worldview. In fulfilling this responsibility, the Fine Arts toursinig drawing through a pencil in all plays the main role. Drawing through a pencil is used not only in the representation of the plastic structure of forms on the surface of the plane in all types of Fine Arts, applied art, design, graphics and the like, but also as a science that teaches us to understand and think about its constructive basis.
In Situ Thermometry of Fermionic Cold-Atom Quantum Wires
Creators: name: De Daniloff, Clément
name: Tharrault, Marin
name: Enesa, Cédric
name: Salomon, Christophe
name: Chevy, Frédéric
name: Reimann, Thomas
name: Struck, Julian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study ensembles of fermionic cold-atom quantum wires with tunable transverse mode population and single-wire resolution. From in situ density profiles, we determine the temperature of the atomic wires in the weakly interacting limit and reconstruct the underlying potential landscape. By varying atom number and temperature, we control the occupation of the transverse modes and study the 1D-3D crossover. In the 1D limit, we observe an increase of the reduced temperature $T/T_{F}$ at nearly constant entropy per particle $S/N k_{B}$. The ability to probe individual atomic wires in situ paves the way to quantitatively study equilibrium and transport properties of strongly interacting 1D Fermi gases.
Population differentiation of two sympatric species of red algae, mazzaella splendens and mazzaella linearis, in Barkley Sound, Columbia, Canada
Creators: name: Shaughnessy, Frank James
Publisher: name: University of British Columbia
Year: 2009

description: The thesis objective was to study algal population differentiation by focusing on two species, Mazzaella splendens (Setchell et Gardner) Hommersand and Mazzaella linearis (Setchell et Gardner) Fredericq (Gigartinaceae, Rhodophyta). Chapter 2 checked the accuracy of the resorcinol test for identifying isomorphic gametophytes and sporophytes in the Gigartinaceae. Sources of variation examined were methods of thallus storage, location and tissue type, species and season. Vegetative phases of M. splendens and M. linearis, and most other taxa examined, could be identified with confidence. The objective of Chapter 3 was to describe the correlation between Mazzaella G. DeToni f. and the low intertidal environment in Barkley Sound. The secondary objective was to identify the species of Mazzaella in this environment. Dimensions for stipe length and blade width indicated that thalli from sites exposed to low and intermediate wave exposure were M. splendens whereas thalli at the high exposure site were M. linearis. The two species were sympatric and significant correlations of morphological characters to environment suggests that some characters are adaptive. In Chapter 4, the objective was to determine if morphological variation of M. splendens and M. linearis is due to genetic differentiation or phenotypic plasticity. Holdfasts of each species were transplanted into common gardens and morphology and thallus mass were compared one year later. Results indicated that species morphologies are due to genetic differentiation and thallus mass responses for M. linearis indicated that it was not completely able to physiologically acclimate to the low exposure site. Chapter 5 ascertained if selection is maintaining the genetic differentiation between M. splendens and M. linearis. Survivorship data indicate that, at the high wave exposure site of M. linearis, it is probably high water velocities selecting against M. splendens. Factors that eventually selected against M. linearis at the low exposure site are less clear. In combination with studies outside of my thesis that reinforce the idea that some characters are adaptive, and that the two species are closely related, my thesis indicates that differences of vegetative characters, and possibly physiological tolerances, are products of population differentiation due to adaptive radiation.
ИССЛЕДОВАНИЕ ПРОЦЕССА ПОЛУЧЕНИЯ СИНТЕЗ ГАЗА С ПОМОЩЬЮ СОЗДАНИЯ ЦИФРОВОГО ДВОЙНИКА В СРЕДЕ ASPEN HYSYS
Creators: name: Кудратбеков, Сардорбек
Publisher: name: Zenodo
Year: 2024

description: В работе описан процесс получения синтез-газа путем паровой конверсии метана (ПКМ) в условиях Uzbekistan GTL, который является основным промышленным методом для получения синтез-газа, применяемого для производства аммиака, метанола и других химических продуктов. В работе рассмотрены термодинамические аспекты процесса и влияние различных параметров на выход продукции и выбросы в атмосферу. Процесс ПКМ проходит при высоких температурах (до 930°C) и давлениях, а для его моделирования используется пакет Aspen HYSYS.
On the spin asymmetry of ground states in trapped two-component Fermi gases with repulsive interactions
Creators: name: Ogren, M.
name: Karkkainen, K.
name: Yu, Y.
name: Reimann, S. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We examine the spin asymmetry of ground states for two-dimensional, harmonically trapped two-component gases of fermionic atoms at zero temperature with weakly repulsive short range interactions. Our main result is that, in contrast to the three-dimensional case, in two dimensions a non-trivial spin-asymmetric phase can only be caused by shell structure. A simple, qualitative description is given in terms of an approximate single particle model, comparing well to the standard results of Hartree-Fock or direct diagonalization methods.
Federated Deep AUC Maximization for Heterogeneous Data with a Constant Communication Complexity
Creators: name: Yuan, Zhuoning
name: Guo, Zhishuai
name: Xu, Yi
name: Ying, Yiming
name: Yang, Tianbao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Optimization and Control (math.OC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Deep AUC (area under the ROC curve) Maximization (DAM) has attracted much attention recently due to its great potential for imbalanced data classification. However, the research on Federated Deep AUC Maximization (FDAM) is still limited. Compared with standard federated learning (FL) approaches that focus on decomposable minimization objectives, FDAM is more complicated due to its minimization objective is non-decomposable over individual examples. In this paper, we propose improved FDAM algorithms for heterogeneous data by solving the popular non-convex strongly-concave min-max formulation of DAM in a distributed fashion, which can also be applied to a class of non-convex strongly-concave min-max problems. A striking result of this paper is that the communication complexity of the proposed algorithm is a constant independent of the number of machines and also independent of the accuracy level, which improves an existing result by orders of magnitude. The experiments have demonstrated the effectiveness of our FDAM algorithm on benchmark datasets, and on medical chest X-ray images from different organizations. Our experiment shows that the performance of FDAM using data from multiple hospitals can improve the AUC score on testing data from a single hospital for detecting life-threatening diseases based on chest radiographs. The proposed method is implemented in our open-sourced library LibAUC (www.libauc.org) whose github address is https://github.com/Optimization-AI/ICML2021_FedDeepAUC_CODASCA.
description: Accepted by ICML2021. Code is available in https://github.com/Optimization-AI/ICML2021_FedDeepAUC_CODASCA, which is a part of our open-sourced library LibAUC (www.libauc.org)
Generalized Path Dependent Representations for Gauge Theories
Creators: name: Reyes, Marat C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A set of differential operators acting by continuous deformations on path dependent functionals of open and closed curves is introduced. Geometrically, these path operators are interpreted as infinitesimal generators of curves in the base manifold of the gauge theory. They furnish a representation with the action of the group of loops having a fundamental role. We show that the path derivative, which is covariant by construction, satisfies the Ricci and Bianchi identities. Also, we provide a geometrical derivation of covariant Taylor expansions based on particular deformations of open curves. The formalism includes, as special cases, other path dependent operators such as end point derivatives and area derivatives.
description: 15 pages,2 figures, section 5, typos; To be published in J. Math. Phys. vol.48, 2007
Investigating the roles of HLA-DO in the immune response in humans and mice
Creators: name: Graves, Austin M.
Publisher: name: No Publisher Supplied
Year: 2021

description: The MHC class II antigen presentation pathway acts as a bridge between the innate and adaptive immune responses. HLA molecules of the MHC class II (MHCII) bind and present pathogen-derived peptides for CD4 T cell activation. Peptide loading of MHCII in the endosomes of cells is controlled by the interplay of the nonclassical MHCII molecules, HLA-DM (DM) and HLA-DO (DO). DM catalyzes peptide loading, whereas DO, an MHCII substrate mimic, prevents DM from interacting with MHCII, resulting in an altered MHCII-peptide repertoire and increased MHCII-CLIP. Previous studies from our lab revealed that the mouse homolog of DO, H2-O, blocks a neutralizing antibody response to a retrovirus. We investigated the effect of H2-O deficiency on immune function in mice. Interestingly, we found an increase in immune cell activation in the small intestines of H2-O deficient mice. These changes appeared to dissipate as the mice aged. Our previous study also found naturally occurring variants of the gene that encodes the beta chain of DO, DOB, that altered DO function. A more functional variant of DOB was linked to individuals who struggle to neutralize Hepatitis C virus. We have now analyzed naturally occurring variants of the gene that encodes the alpha chain of DO, DOA, and found several with altered function. In fact, 52% of the variants analyzed altered DO function, two of which were linked to Hepatitis B viral immune responses. A more functional variant, DOA*0102, was linked to Hepatitis B viral persistence. A functionally null variant, DOalpha F114L, was conversely linked to Hepatitis B viral clearance. Further characterization of the gain-of-function variants identified in this study suggests that the mechanism of DO’s inhibitory function of DM is more complex than previously understood. DO binding to DM may permanently alter DM’s functional capability, even if DO is no longer bound to DM.
Soziale Integration von Schülerinnen und Schülern mit Hörbeeinträchtigungin Regelklassen eine soziometrische Analyse
Creators: name: Strickler, Giliane
Publisher: name: Zenodo
Year: 2015
Subjects: Sonderpädagogik
Pädagogik für Schwerhörige und Gehörlose
Schwerhörigkeit
Gehörlosigkeit
Kind
Soziale Integration
Masterarbeit

description: Der sozialen Einbindung von hörbeeinträchtigten Kindern und Jugendlichen in Regelklassen kommt eine grosse Bedeutung zu. Im Rahmen von soziometrischen Untersuchungen in 12 Schulklassen von der ersten Primar- bis zur dritten Sekundarklasse wurden Parameter der sozialen Integration von 13 hörbeeinträchtigten Kindern und Jugendlichen mit dem Computerprogramm SOZIO ausgewertet. In zwei zentralen Bereichen, der Kommunikation und dem Pflegen von Freundschaften zeigten sich signifikante Unterschiede zu den gut hörenden Kindern und Jugendlichen. Mit den hörbeeinträchtigten Schülerinnen und Schülern wurde signifikant weniger gesprochen und sie verfügten über signifikant weniger enge Freunde als die gut hörenden. Die Resultate lassen sich aufgrund der kleinen Stichprobe jedoch nicht verallgemeinern und müssten anhand einer grösseren Studie überprüft werden.
Συμβολικές μορφές / πρόσωπα στο λογοτεχνικό έργο του Βάρναλη: μια ερμηνευτική και λειτουργική ανάγνωση επιλεγμένων κειμένων:
Creators: name: Sun, Tao Yebin, (Σουν Ταο)
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Βάρναλης
συμβολισμός
συμβολικές μορφές
Varnalis
symbolism
symbolic figures

description: Ο Κώστας Βάρναλης, διαθέτοντας πλούσια και δημιουργική φαντασία, αλλά και αρχαιοελληνικές γνώσεις, χρησιμοποιεί ποικίλες μορφές-σύμβολα, είτε παραδοσιακά είτε με νέα σημασιοδότηση και, συχνά, με ανατροπή• επινοεί, επίσης, καινούργιες τέτοιες συμβολικές μορφές μέσα στο έργο του, ποιητικό, πεζογραφικό και θεατρικό. Αυτές τις μορφές-σύμβολα είτε τις δανείζεται και τις αντλεί από την αρχαία θρησκεία, μυθολογία, ιστορία, γραμματεία και, γενικά, τον πολιτισμό του παρελθόντος, είτε τις πλάθει και τις κατασκευάζει με βάση τη σύγχρονή του επικαιρότητα. Έτσι συνθέτει έναν ζωντανό συμβολικό κόσμο, που τον γεμίζει με συγχρονικό πολιτικό και κοινωνικό περιεχόμενο. Αντικείμενο της παρούσας εργασίας αποτελεί η μελέτη μιας επιλογής τέτοιων μορφών-συμβόλων και η διερεύνηση της λειτουργίας τους στα λογοτεχνικά έργα του Βάρναλη.
description: Kostas Varnalis, one of the most important modern Greek poets, is possessed of rich and creative imagination and a wide knowledge of ancient Greece. In his poetic, prosy and theatrical works, he used a variety of traditional symbolic figures with entirely new and even reversed significations. These symbolic figures were usually borrowed from the culture of the past, such as the ancient religion, mythology, history and literature. Additionally, he also fabricated some new symbolic figures inspired by contemporary events and people. In this way, he composed a living symbolic world, filled with contemporary political and social contents. The aim of this thesis is to study a selection of such symbolic figures and to examine their functions in literary works of Varnalis.
Search for the Theta^+(1540) in lattice QCD
Creators: name: Hagen, Christian
name: Hierl, Dieter
name: Schäfer, Andreas
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We report on a study of the pentaquark Theta^+(1540), using a variety of different interpolating fields. We use Chirally Improved fermions in combination with Jacobi smeared quark sources to improve the signal and get reliable results even for small quark masses. The results of our quenched calculations, which have been done on a 12^3 x 24 lattice with a lattice spacing of a = 0.148 fm, do not provide any evidence for the existence of a Θ^+ with positive parity. We do observe, however, a signal compatible with nucleon-kaon scattering state. For the negative parity the results are inconclusive, due to the potential mixture with nucleon-kaon and N^*-kaon scattering states.
description: 5 pages, 2 figures
Οι επιπτώσεις των ορεινών υδρονομικών έργων στο φυσικό περιβάλλον:
Creators: name: Μπακατσέλου, Σταυρούλα-Χριστίνα Σπυρίδωνος
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Υδρονομικά έργα
Περιβαλλοντικές επιπτώσεις
Φράγμα
Torrent works
Environmental impact
Dam

description: Η παρούσα εργασία ερευνά, εξετάζει, αναλύει και αξιολογεί τους επιτευχθέντες στόχους της περιβαλλοντικής λειτουργίας και συμπεριφοράς εκτελεσθέντων έργων διευθέτησης σε διάφορες ελλαδικές περιοχές. Με βάση τη φιλοσοφία της έρευνας δηλαδή αναζήτηση στοιχείων περιβαλλοντικής συνεισφοράς των υδρονομικών έργων, είτε αυτά αναφέρονται και σχετίζονται με έργα επιφανείας είτε με έργα κοιτών και σταθεροποίησης τοπικών φαινομένων (π.χ. ολισθήσεων, πρανικών υποσκαφών, κ.λ.π.), η περιοχή έρευνας δεν αφορούσε μια συγκεκριμένη λεκάνη απορροής όπου είχαν κατασκευασθεί υδρονομικά έργα, αλλά προέκυψε μετά από έρευνα έργων για τα οποία υπήρχαν πληροφορίες περί της σαφούς περιβαλλοντικής τους επίπτωσης. Οι τελικές περιοχές όπου έγινε καταγραφή των περιβαλλοντικών και λειτουργικών στοιχείων υδρονομικών επεμβάσεων ήταν η λεκάνη απορροής και η περιοχή των πηγών Μοναστηρακίου Βόνιτσας,η λεκάνη του χειμάρρου Σέδες και η περιοχή των Τουρκοβουνίων.
description: This paper investigates, examines, analyzes and evaluates objectives achieved environmental function and behavior executed projects in various settlement areas in Greece. Based on the research philosophy that searches environmental contribution of torrent control works, whether they refer and related surface works or works riverbed and stabilization of local phenomena (eg slides, Pran undercuts, etc.), study area did not concern a particular river basins where water supplies were constructed projects, but emerged after research projects for which there was information on the clear environmental impact. The final areas were recorded environmental and functional elements torrent control interventions was the catchment area and the area of Monastiraki Vonitsas sources, the basin of the river Sedes and the area of Tourkovounia.