cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effect algebras are the Eilenberg-Moore category for the Kalmbach monad
Creators: name: Jenča, Gejza
Publisher: name: arXiv
Year: 2014
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: Primary: 03G12, Secondary: 06F20, 81P10

description: The Kalmbach monad is the monad that arises from the free-forgetful adjunction between bounded posets and orthomodular posets. We prove that the category of effect algebras is isomorphic to the Eilenberg-Moore category for the Kalmbach monad.
The stick number of rail arcs
Creators: name: Cazet, Nicholas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: Consider two parallel lines $\ell_1$ and $\ell_2$ in $\mathbb{R}^3$. A rail arc is an embedding of an arc in $\mathbb{R}^3$ such that one endpoint is on $\ell_1$, the other is on $\ell_2$, and its interior is disjoint from $\ell_1\cup\ell_2$. Rail arcs are considered up to rail isotopies, ambient isotopies of $\mathbb{R}^3$ with each self-homeomorphism mapping $\ell_1$ and $\ell_2$ onto themselves. When the manifolds and maps are taken in the piecewise linear category, these rail arcs are called stick rail arcs. The stick number of a rail arc class is the minimum number of sticks, line segments in a p.l. arc, needed to create a representative. This paper will calculate the stick numbers of rail arcs classes with a crossing number at most 2 and use a winding number invariant to calculate the stick numbers of infinitely many rail arc classes. Each rail arc class has two canonically associated knot classes, its under and over companions. This paper also introduces the rail stick number of knot classes, the minimum number of sticks needed to create a rail arcs whose under or over companion is the knot class. The rail stick number is calculated for all knot classes with crossing number at most 9. The stick number of multi-component rail arcs classes is considered as well as the lattice stick number of rail arcs.
description: 19 pages, 22 figures
title: Ethiopian Journal of Environment and Development, Vol. 6 No. 1 (2024): Morpho-physiological Response of Avocado (Persea americana Mill.) Seedlings to Different Salinity Levels in Sidam National Regional State, Southern Ethiopia
title: Morpho-physiological Response of Avocado (Persea americana Mill.) Seedlings to Different Salinity Levels in Sidam National Regional State, Southern Ethiopia
titleType: AlternativeTitle
Creators: name: Ethiopian Journal Of Environment And Development
Publisher: name: Ethiopian Journal of Environment and Development
Year: 2024

description: Salt stress is the most important environmental stress that adversely affects avocado morpho-physiological performance. Therefore, this study has been conducted to evaluate the response of avocado seedlings to different salinity levels. The experiment was laid out in a Randomized Complete Design (RCD) with four salt concentration levels (0, 1.3 dS/m, 2.6 dS/m, and 3.9 dS/m) on grafted avocado seedlings, with three replications. The avocado seedlings were raised from Ettinger avocado scion grafted on Guatemalan race rootstock. The results indicate that most of the morphological growth parameters, such as rootstock diameter, sucker development, and root length, were significantly (p<0.01) affected by salt stress level. While tap root diameter and lateral root length were not significantly (p>0.05) affected by salt treatment. Except for the number of suckers developed on the rootstock, rootstock and scion diameter significantly decreased as salt concentrations increased from 0 to 3.9 dS/m. Similarly, significant (p<0.01) variations were also observed in leaf length, bud number, leaf fresh weight and dry weight, leaf area, shoot height, taproot length, and lateral root length. These parameters were also significantly decreased with the increase in salt concentrations. Likewise, photosynthesis, transpiration, stomatal conductance, and instantaneous water use efficiency were significantly affected by salt concentration, where relatively maximum scores were obtained at 0 and 1.3 dS/m. In general, salt concentration at 0 and 1.3 dS/m EC favors most of the growth and physiological performance of avocado seedlings compared to 2.6 and 3.9 dS/m. Thus, the study revealed that for vigorous growth of avocado seedlings at an early stage, the quality of irrigation water needs considerable attention to ensure robust avocado seedling growth.
Non-Stationary Interest Rate Differentials and the Role of Monetary Policy
Creators: name: Matros, Philipp
name: Weber, Enzo
Publisher: name: Universität Regensburg
Year: 2010
Subjects: subject: Uncovered Interest Rate Parity, Monetary Policy Rules, Cointegration, Vector-Error Correction Model
subject: 330 Wirtschaft
subject: E44
subject: F31
subject: C32

description: The present work deals with a frequently detected failure of the uncovered interest rate parity (UIP) - the absence of bivariate cointegration between domestic and foreign interest rates. We explain non-stationarity of the interest differential via central bank reactions to exchange rate variations. Thereby, the exchange rate in levels introduces an additional stochastic trend into the system. Trivariate cointegration between the interest rates and the exchange rate accounts for the missing stationarity property of the interest differential. We apply the concept to the case of Turkey and Europe, where we can validate the theoretical considerations by multivariate time series techniques.
title: Ethiopian Journal of Environment and Development, Vol. 6 No. 1 (2024): Determinants of food security among rural households in Majang Zone, Gambella Region, South-western Ethiopia
title: Determinants of food security among rural households in Majang Zone, Gambella Region, South-western Ethiopia
titleType: AlternativeTitle
Creators: name: Ethiopian Journal Of Environment And Development
Publisher: name: Ethiopian Journal of Environment and Development
Year: 2024

description: Attaining food security is a basic human right and a priority development agenda, particularly for the least developed countries, although the challenge remains tough. The research was designed to analyze the food security status of households and its determinant factors in the Majang Zone. A multistage sampling was employed to select the 320 households. The study employed a mixed design that uses questionnaires, focus group discussions (FGDs), and key informant interviews (KIIs) to generate data. The data were analyzed using descriptive and binary logistic regression. The findings indicated that nearly 53% and 47% of the households were food secure and insecure, respectively. Beehives (p<0.05), formal education (p<0.01), landholding (p<0.01), oxen ploughing (p<0.05), livestock ownership (p<0.05), farm income (p<0.01), extension support (p<0.01), and family size (p<0.10) significantly and positively determine the household food security status, whereas age (p<0.05) and pesticide use (p<0.05) have negative relationships. A unit increase in the above factors is expected to improve food security by a fold of 0.1014, 2.138, 1.489, 2.237, 0.9674, 0.0001, 2.469, and 0.7226, respectively. Similarly, a unit increase in the age of households and pesticide use tend to reduce food security status by 0.1091 and 2.071 units, respectively. The limitations of improved agricultural technologies such as improved inputs for crop and livestock; small irrigation schemes; institutions including credit services and cooperatives; and infrastructural developments, namely roads, niche markets, and rural electrification, coupled with undiversified income sources, call for holistic and sustainable strategic intervention from concerned bodies of the government and stakeholders at all levels to curb food insecurity challenges.
The sexual inducer of Volvox carteri. Its large-scale production and secretion by Saccharomyces cerevisiae
Creators: name: Haas, E.
name: Sumper, Manfred
Publisher: name: Universität Regensburg
Year: 1991
Subjects: subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin
subject: Animals
subject: Base Sequence
subject: DNA/genetics
subject: Escherichia coli/genetics
subject: Eukaryota/genetics
subject: Genetic Vectors
subject: Molecular Sequence Data
subject: Plasmids
subject: Recombinant Proteins/secretion
subject: Saccharomyces cerevisiae/metabolism
subject: Sex Attractants/secretion
subject: Transfection

description: The DNA sequence coding for the sexual inducer glycoprotein of Volvox carteri and its N-terminal signal peptide was placed under the control of the repressible acid phosphatase promoter of the yeast Saccharomyces cerevisiae in a yeast-E. coli shuttle vector. Yeast transformed by this construct synthesized and secreted into the culture medium biologically active inducer in amounts two to three orders of magnitude higher than observed in the Volvox system.
Cohomologies of generalized complex manifolds and nilmanifolds
Creators: name: Angella, Daniele
name: Calamai, Simone
name: Kasuya, Hisashi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 57T15, 53D18, 32G07

description: We study generalized complex cohomologies of generalized complex structures constructed from certain symplectic fibre bundles over complex manifolds. We apply our results in the case of left-invariant generalized complex structures on nilmanifolds and to their space of small deformations.
description: The previous version has been completely rewritten in joint work with the further author. Comments are welcome!
Seeing with more than sight: Nalo Hopkinson's non-ocular visions of the human
Creators: name: Keir, Reilly
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Jamaican-Canadian author Nalo Hopkinson has developed a substantial body of work belonging to the genre of Black Speculative Fiction. Hopkinson’s oeuvre succeeds in challenging what it means to be human. She also reminds us first that historically race has been constructed to dehumanise certain subjects. However, secondly, Hopkinson also offers possible and imagined futures in which the human subject is complicated beyond its current strictures, especially that of race. This project will argue that Hopkinson’s works often speak to philosopher Sylvia Wynter’s call to revalorize the human, a figure who is often synonymous with Man. Hopkinson’s body of work succeeds in exploring such a revalorization through one of the most prevailing sensorial faculties of human beings – our sight; a sense which has been instrumental in the identification of Blackness, and subsequently in our practices of racialisation and dehumanisation. This project aims firstly to uncover the ways Hopkinson constructs sight in multiplicitous and non-ocular ways, and secondly how this broadened definition of sight speaks to the work of Sylvia Wynter and ultimately works towards a revalorization of the human. Through a theoretical close reading of Brown Girl in the Ring and Midnight Robber, as well as the short story, “Something to Hitch Meat To”, and the comic series House of Whispers, this project suggests that when the sensorial faculty of sight incorporates non-ocular ways of seeing, this can disrupt the boundaries of the human and facilitate a revalorization, wherein racial categories no longer relegate certain subjects to subordinate social, cultural and political positions.
Hilbert functions of colored quotient rings and a generalization of the Clements-Lindström theorem
Creators: name: Chong, Kai Fong Ernest
Publisher: name: arXiv
Year: 2014
Subjects: subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 13A02, 13C05, 13C13, 13D40, 05D99, 05E45

description: Given a polynomial ring $S = \Bbbk[x_1, \dots, x_n]$ over a field $\Bbbk$, and a monomial ideal $M$ of $S$, we say the quotient ring $R = S/M$ is Macaulay-Lex if for every graded ideal of $R$, there exists a lexicographic ideal of $R$ with the same Hilbert function. In this paper, we introduce a class of quotient rings with combinatorial significance, which we call colored quotient rings. This class of rings include Clements-Lindström rings and colored squarefree rings as special cases that are known to be Macaulay-Lex. We construct two new classes of Macaulay-Lex rings, characterize all colored quotient rings that are Macaulay-Lex, and give a simultaneous generalization of both the Clements-Lindström theorem and the Frankl-Füredi-Kalai theorem. We also show that the $f$-vectors of $(a_1, \dots, a_n)$-colored simplicial complexes or multicomplexes are never characterized by "reverse-lexicographic" complexes or multicomplexes when $n>1$ and $(a_1, \dots, a_n) \neq (1, \dots, 1)$.
description: 17 pages; v2: notation significantly simplified, and a (new) shorter proof of Theorem 4.5 is given. To appear in the J. of Algebraic Combinatorics
EFFECT OF AGGREGATE SURFACE AREA ON PERFORMANCE OF ASPHALT CONCRETE BY USING MARSHALL TESTS
Creators: name: YIBELTAL AYCHEW BEYENE
Publisher: name: Zenodo
Year: 2021

description: Hot Asphalt Mixtures (HMA) is composite of mineral aggregates, asphalt binder, and air voids. Mineral aggregate is covered about 95 percent of the total mixture. In asphalt pavement production, aggregate gradation is specified in a large percent passing range to use locally available material and to be economical. This large gap of the aggregate gradation specification range alters the performance of the asphalt concrete by change the aggregate surface area. The aggregate surface area has a critical role in the hot mix asphalt performance by altering the coated asphalt film thickness on the aggregate surface and this controls overall mixture properties. Various studies have shown that the variation aggregate surface area has a significant effect on the performance of asphalt concrete pavements by using Marshall Test methods. This study was mainly evaluated the effect of aggregate surface area on the mixture volumetric properties and moisture damage. Different aggregate surface areas were determined in the blending aggregate gradation percent passing specification range by multiplying empirical surface area factor. Using 3.12m2/kg, 4.58m2/kg, 6.19m2/kg, 7.93m2/kg, and 9.64m2/kg aggregate surface areas a number of trial mixes have been prepared using the Marshal Mix design method. The stability, flow, volumetric properties, and moisture resistance of the hot mix asphalt were discussed.
The Development of Learner Quality on Achievements by the 6A Process of Ban Kham School Under the Sakon Nakhon Primary Educational Service Area Office 3
Creators: name: Danprai Seemakam
Publisher: name: DR.KEN Institute of Academic Development and Promotion
Year: 2022
Subjects: Development
Quality of Learners in Terms of Learning Achievement
Process

description: Interdisciplinary Academic and Research Journal, 2, 5, 613-636
Remembering Graduates of the Northwestern University Woman's Medical School
Creators: name: Sims, Ronald H
Publisher: name: Galter Health Science Library & Learning Center
Year: 2016

description: This article is part of an occasional series prepared by Galter librarians on the history of and highlights about various Northwestern University health profession programs and their alumni. Other articles were about Northwestern University's medical, woman's medical, dental, nursing schools, and pharmacy schools. (This historical overview was originally published in the Galter Library's website in honor of National Women's History Month, October 2013.) Features highlights of the lives and careers of: Emma Ann Reynolds (1862-1917); Julia L. Woodzicka (1865-1948); Lucy Alice Gaynor (1861-1911).
Variable-range hopping conduction in doped germanium at very low temperatures and high magnetic fields
Creators: name: Schoepe, Wilfried
Publisher: name: Universität Regensburg
Year: 1988
Subjects: subject: 530 Physik

description: The conductivity of doped Ge below the metal-insulator transition is measured at temperatures between 4 K and 40 mK and in magnetic fields up to 7 Tesla. In zero field the resistivity exponent diverges asT –1/2. In weak fields the magnetoresistance increases asB 2 and becomes exponentially large in strong fields and at low temperatures. The results can be described quantitatively in terms of variable-range hopping between localized states having a Coulomb gap in the density of states at the Fermi level. The magnetoresistance is calculated for arbitrary fields by means of a quasi-classical method. A fit to the data gives the radius of the localized states and the density of states. The sample is found to be very close to the metal-insulator transition. A small increase of the binding energy is observed in strong fields.
Reasonable Accommodation of Employees' Parenting and Carer Responsibilities: A Human Rights Perspective
Creators: name: Swannie, Bill
Publisher: name: Monash University
Year: 2023
Subjects: Other law and legal studies not elsewhere classified

description: Positive duties, including a duty to accommodate, are rare in Australian anti-discrimination law. In 2008, the Victorian Parliament enacted a duty on employers to accommodate employees’ parenting or carer responsibilities. This unique duty requires employers to seriously consider how they can accommodate such responsibilities when they determine work arrangements. So far, however, these provisions have been interpreted as requiring all employees to be treated the same, regardless of their circumstances. This article argues that interpretation of the provisions should be guided by the Charter of Human Rights and Responsibilities Act 2006 (Vic). A human rights-focused interpretation would give more weight to the interests of employees with parenting or carer responsibilities and would support the legislative purpose of promoting their full and equal participation in the workforce. This would also assist the cultural change needed to challenge gendered stereotypes regarding the respective roles of men and women in relation to employment and carer work.
SIB resource landscape and review
Creators: name: Duvaud, Severine
Publisher: name: F1000 Research Limited
Year: 2024

description: In this presentation, you'll find out about the stringent selection process guiding the inclusion of first-class open data resources in the SIB Swiss Institute of Bioinformatics’s portfolio, and the professional support they benefit from throughout their life cycle. SIB's unique model helps them to reach and maintain the highest level of usefulness, accuracy and reliability for their users. Most SIB Resources have reached international recognition, among which are ELIXIR Core Data Resources, Deposition Databases, and Recommended Interoperability Resources.
title: St. Andrew's project : building inclusion using 'outcomes that matter'
Creators: name: Walter, Chris
Publisher: name: Strathprints - University of Strathclyde
Year: 2013

description: The article will describe how Camphill, an independent residential school for children and young people with a variety of complex needs, began a new project (St. Andrew’') by applying its experience in using relationship-based approaches to work positively with vulnerable individuals. The children and young people we work with do not fit in any standard programme being either too able for a special school or too complex for mainstream schooling. The origins of the St. Andrew's Project lie in the original vision of Camphill as a place of mutual learning, where each individual's spiritual uniqueness is promoted through meaningful relationships. This core belief resonates with the Circle of Courage model of meeting four fundamental growth needs for belonging, mastery, independence and generosity (Brendtro, Brokenleg and van Bockern, 1990). Therapeutic support is negotiated with children, their families and supporting agencies following a comprehensive ecological assessment. The intended outcomes for any short or medium term intervention are then agreed with those involved using the Outcomes that Matter © framework (Fulcher and Garfat, 2012). Weekly discussions with each young person then form the basis of an outcome based intervention plan.
СЕСТРИНСКИЙ УХОД ЗА БОЛЬНЫМИ ПРИ ДЕРМАТИТАХ
Creators: name: ГАНИЕВА НОДИРА САЛИМОВНА преподаватель предмета  кожно-венерологических заболеваний
Publisher: name: Zenodo
Year: 2023

description: Сестринский процессявляется одним из основных понятий современной концепции сестринского дела. В данной статье рассматриваются сестринский уход за больными при дерматитах.
Ключевые слова: Дерматит, защитный барьер, Атопический дерматит, Сестринское дело, пигментообразующая функция, нейродермит, пищевая аллергия, бронхиальная астма.
WNet: A data-driven dual-domain denoising model for sparse-view computed tomography with a trainable reconstruction layer
Creators: name: Cheslerean-Boghiu, Theodor
name: Hofmann, Felix C.
name: Schultheiß, Manuel
name: Pfeiffer, Franz
name: Pfeiffer, Daniela
name: Lasser, Tobias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Deep learning based solutions are being succesfully implemented for a wide variety of applications. Most notably, clinical use-cases have gained an increased interest and have been the main driver behind some of the cutting-edge data-driven algorithms proposed in the last years. For applications like sparse-view tomographic reconstructions, where the amount of measurement data is small in order to keep acquisition time short and radiation dose low, reduction of the streaking artifacts has prompted the development of data-driven denoising algorithms with the main goal of obtaining diagnostically viable images with only a subset of a full-scan data. We propose WNet, a data-driven dual-domain denoising model which contains a trainable reconstruction layer for sparse-view artifact denoising. Two encoder-decoder networks perform denoising in both sinogram- and reconstruction-domain simultaneously, while a third layer implementing the Filtered Backprojection algorithm is sandwiched between the first two and takes care of the reconstruction operation. We investigate the performance of the network on sparse-view chest CT scans, and we highlight the added benefit of having a trainable reconstruction layer over the more conventional fixed ones. We train and test our network on two clinically relevant datasets and we compare the obtained results with three different types of sparse-view CT denoising and reconstruction algorithms.
description: Publisehd at IEEE TCI in January 2023. Supplementary materials are available @IEEE
The Model of Development of Tourism Routes with Ecological and Cultural Potential in Muang District, Nong Bua Lamphu Province
Creators: name: Rapeepan Jantarasa
Publisher: name: DR.KEN Institute of Academic Development and Promotion
Year: 2022
Subjects: Linkage Tourism Routes
Ecotourism and Cultural Sites

description: Interdisciplinary Academic and Research Journal, 2, 5, 637-660
A Holographic Model for Paramagnetism/antiferromagnetism Phase Transition
Creators: name: Cai, Rong-Gen
name: Yang, Run-Qiu
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we build a holographic model of paramagnetism/antiferromagnetism phase transition, which is realized by introducing two real antisymmetric tensor fields coupling to the background gauge field strength and interacting with each other in a dyonic black brane background. In the case without external magnetic field and in low temperatures, the magnetic moments condense spontaneously in antiparallel manner with the same magnitude and the time reversal symmetry is also broken spontaneously (if boundary spatial dimension is more than 2, spatial rotational symmetry is broken spontaneously as well), which leads to an antiferromagnetic phase. In the case with weak external magnetic field, the magnetic susceptibility density has a peak at the critical temperature and satisfies the Curie-Weiss law in the paramagnetic phase of antiferromagnetism. In the strong external magnetic field case, there is a critical magnetic field $B_c$ in antiferromagnetic phase: when magnetic field reaches $B_c$, the system will return into the paramagnetic phase by a second order phase transition.
description: The version published in PRD
title: Phytophthora on Chrysanthemum (chrysanths, mums)
Creators: name: Werres, Sabine
name: Götz, Monika
name: Tomić, Želkoj
name: Ivić, Dario
name: Peduto Hand, Francesca
name: Gabriel, Colette
name: McCann, David
name: Tooley, Paul W.
Publisher: name: Julius Kühn-Institute, Federal Research Centre for Cultivated Plants, Quedlinburg
Year: 2018

description: JKI Data Shetts - Plant Diseases and Diagnosis, 2017.1
ВАЖНОСТЬ ИСПОЛЬЗОВАНИЯ ИНТЕРАКТИВНЫХ ОБРАЗОВАТЕЛЬНЫХ ТЕХНОЛОГИЙ В  НАЧАЛЬНЫХ КЛАССАХ
Creators: name: Г. Самарканд 34 школа, Узбекистанская 53 Начальная школа Асанова Динара Ваижиповна
Publisher: name: Zenodo
Year: 2023

description: Изменения, происходящие в мире, вызвали необходимость разработки новых подходов в системе обучения и воспитания, внедрения государственных стандартов второго поколения. Перед учителем поставлены новые цели: формирование универсальных учебных действий и мотивации к обучению. В данной статье рассматриваются важность использования интерактивных образовательных технологий в начальных классах.
Ключевые слова: процесс обучения, умение принимать, сохранять, реализовывать учебные цели, планировать, контролировать, оценивать, результат.
Proposta di Laudatio del Professor Antonio Tizzano, dottore di ricerca ad honorem in Giurisprudenza nell'Università di Padova
Creators: name: CORTESE, BERNARDO
Publisher: name: Zenodo
Year: 2023

description: Il 2 novembre, alle ore 10, nell'Aula Magna Galileo Galilei dell'Università di Padova, la Magnifica Rettrice dell'Università degli studi di Padova, Prof.ssa Daniela Mapelli conferisce il Dottorato honoris causa in Giurisprudenza al Prof. Antonio Tizzano, vice Presidente emerito della Corte di giustizia dell'Unione europea, su proposta del collegio docenti del Dottorato in Giurisprudenza e del consiglio del Dipartimento di Diritto Pubblico, Internazionale e Comunitario dell'Università di Padova. Si pubblica qui il testo della laudatio sottoposta alla Magnifica Rettrice dal docente proponente, il Prof. Bernardo Cortese. Il testo presente ha in effetti costituito l'essenza della laudatio  letta in occasione del conferimento, che può riascoltarsi al canale Youtube ufficiale dell'Università di Padova a questo link.
การสอบสวนเหตุการณ์ กรณีท่อส่งก๊าซธรรมชาติระเบิดในพื้นที่อำเภอบางบ่อ จังหวัดสมุทรปราการ ในเดือนตุลาคม 2563
Creators: name: บวร มิตรมาก
Publisher: name: กองนวัตกรรมและวิจัย กรมควบคุมโรค
Year: 2565
Subjects: การสอบสวน
ท่อส่งก๊าซธรรมชาติ
ระเบิด
เสียชีวิต

description: วารสารควบคุมโรค, 48, 3, 698-710
Borromean ground state of fermions in two dimensions
Creators: name: Volosniev, A. G.
name: Fedorov, D. V.
name: Jensen, A. S.
name: Zinner, N. T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The study of quantum mechanical bound states is as old as quantum theory itself. Yet, it took many years to realize that three-body borromean systems that are bound when any two-body subsystem is unbound are abundant in nature. Here we demonstrate the existence of borromean systems of spin-polarized (spinless) identical fermions in two spatial dimensions. The ground state with zero orbital (planar) angular momentum exists in a borromean window between critical two- and three-body strengths. The doubly degenerate first excited states of angular momentum one appears only very close to the two-body threshold. They are the lowest in a possible sequence of so-called super-Efimov states. While the observation of the super-Efimov scaling could be very difficult, the borromean ground state should be observable in cold atomic gases and could be the basis for producing a quantum gas of three-body states in two dimensions.
description: 9 pages, 3 figures, published version
Charm bracelets and their application to the construction of periodic Golay pairs
Creators: name: Djokovic, Dragomir Z
name: Kotsireas, Ilias
name: Recoskie, Daniel
name: Sawada, Joe
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: A $k$-ary charm bracelet is an equivalence class of length $n$ strings with the action on the indices by the additive group of the ring of integers modulo $n$ extended by the group of units. By applying an $O(n^3)$ amortized time algorithm to generate charm bracelet representatives with a specified content, we construct 29 new periodic Golay pairs of length $68$.
description: 15 pages, revised and updated version
The Lukacs-Olkin-Rubin theorem on symmetric cones without invariance of the "quotient"
Creators: name: Kołodziejek, Bartosz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 62H05

description: We prove the Lukacs-Olkin-Rubin theorem without invariance of the distribution of the "quotient", which was the key assumption in the original proof of [Olkin--Rubin, Ann. Math. Stat. 33 (1962), 1272--1280]. Instead we assume existence of strictly positive continuous densities of respective random variables. We consider the (cone variate) "quotient" for any division algorithm satisfying some natural conditions. For that purpose, the new proof of the Olkin--Baker functional equation on symmetric cones is given.
description: 14 pages. arXiv admin note: text overlap with arXiv:1206.6091, arXiv:1307.3988
Equivariant formality of isotropy actions on homogeneous spaces defined by Lie group automorphisms
Creators: name: Goertsches, Oliver
name: Noshari, Sam H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 53C30, 55N91, 57S15

description: We show that the isotropy action of a homogeneous space $G/K$, where $G$ and $K$ are compact, connected Lie groups and $K$ is defined by an automorphism on $G$, is equivariantly formal and that $(G, K)$ is a Cartan pair.
description: 11 pages
Degenerations of Kahlerian K3 surfaces with finite symplectic automorphism groups
Creators: name: Nikulin, Viacheslav V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Using results of our preprint "Kahlerian K3 surfaces and Niemeier lattices" arXiv:1109.2879 (and the corresponding papers), we classify degenerations of Kahlerian K3 surfaces with finite symplectic automorphism groups.
description: Var5: 71 pages. The main Conjecture 4 is formulated more exactly. We hope to give its proof in further publications
Brauer groups on K3 surfaces and arithmetic applications
Creators: name: McKinnie, Kelly
name: Sawon, Justin
name: Tanimoto, Sho
name: Várilly-Alvarado, Anthony
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14J28, 14G05

description: For a prime $p$, we study subgroups of order p of the Brauer group Br(S) of a general complex polarized K3 surface of degree 2d, generalizing earlier work of van Geemen. These groups correspond to sublattices of index p of the transcendental lattice T_S of S; we classify these lattices up to isomorphism using Nikulin's discriminant form technique. We then study geometric realizations of p-torsion Brauer elements as Brauer-Severi varieties in a few cases via projective duality. We use one of these constructions for an arithmetic application, giving new kinds of counter-examples to weak approximation on K3 surfaces of degree two.
description: 40 pages; changes in exposition
Matrix product state formulation of frequency-space dynamics at finite temperatures
Creators: name: Tiegel, Alexander C.
name: Manmana, Salvatore R.
name: Pruschke, Thomas
name: Honecker, Andreas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a flexible density-matrix renormalization group approach to calculate finite-temperature spectral functions of one-dimensional strongly correlated quantum systems. The method combines the purification of the finite-temperature density operator with a moment expansion of the Green's function. Using this approach, we study finite-temperature properties of dynamical spectral functions of spin-1/2 XXZ chains with Dzyaloshinskii-Moriya interactions in magnetic fields and analyze the effect of these symmetry breaking interactions on the nature of the finite-temperature dynamic spin structure factor.
description: 5 pages (3 figures) + 2 pages supplemental material; v3: final version
Erratum to: Geodesic Deviation Equation in f(R) Gravity
Creators: name: Guarnizo, Alejandro
name: Castaneda, Leonardo
name: Tejeiro, Juan M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the context of metric $f(R)$ gravity, the Geodesic Deviation Equation (GDE) was first studied in arXiv:1010.5279v3, giving a general expression and studying a particular case, the FLRW universe. In the paper arXiv:1312.2022v1 a similar analysis was made. However, there is a discrepancy in the expressions for the null vector field case due to an algebraic error in our original paper. Here, we make explicit the contribution of the different operators in the GDE, and we correct our previous results.
description: 6 pages, erratum to arXiv:1010.5279v3, and comment to arXiv:1312.2022v1
A new method for determining the quark-gluon vertex
Creators: name: Aguilar, A. C.
name: Binosi, D.
name: Ibañez, D.
name: Papavassiliou, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a novel nonperturbative approach for calculating the form factors of the quark-gluon vertex, in a general covariant gauge. The key ingredient of this method is the exact all-order relation connecting the conventional quark-gluon vertex with the corresponding vertex of the background field method, which is Abelian-like. When this latter relation is combined with the standard gauge technique, supplemented by a crucial set of transverse Ward identities, it allows the approximate determination of the nonperturbative behavior of all twelve form factors comprising the quark-gluon vertex, for arbitrary values of the momenta. The actual implementation of this procedure is carried out in the Landau gauge, in order to make contact with the results of lattice simulations performed in this particular gauge. The most demanding technical aspect involves the calculation of certain (fully-dressed) auxiliary three-point functions, using lattice data as input for the gluon propagators appearing in their diagrammatic expansion. The numerical evaluation of the relevant form factors in three special kinematical configurations (soft gluon and quark symmetric limit, zero quark momentum) is carried out in detail, finding rather good agreement with the available lattice data. Most notably, a concrete mechanism is proposed for explaining the puzzling divergence of one of these form factors observed in lattice simulations.
description: 50 pages, 19 figures; expanded version matching the published one
Tensor invariants, Saturation problems, and Dynkin automorphisms
Creators: name: Hong, Jiuzu
name: Shen, Linhui
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 20G05, 94B27, 14T05

description: Let G be a connected almost simple algebraic group with a Dynkin automorphism σ. Let G_σ be the connected almost simple algebraic group associated to G and σ. We prove that the dimension of the tensor invariant space of G_σ is equal to the trace of σ on the corresponding tensor invariant space of G. We prove that if G has the saturation property then so does Gσ. As a consequence, we show that the spin group Spin(2n + 1) is of saturation property with factor 2, which strengthens the results of Belkale-Kumar and Sam in the case of type B_n.
description: 27 pages. Rewrite introduction and add some applications
Light-cone gauge approach to arbitrary spin fields, currents, and shadows
Creators: name: Metsaev, R. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Totally symmetric arbitrary spin fields in AdS space, conformal fields, conformal currents, and shadow fields in flat space are studied. Light-cone formulation for such fields, currents, and shadows is obtained. Use of the Poincare parametrization of AdS space allows us to treat fields in flat and AdS spaces on equal footing. Light-cone gauge realization of relativistic symmetries for fields, currents, and shadows is also obtained. The light-cone formulation for fields is obtained by using the gauge invariant Lagrangian which is presented in terms of the modified de Donder divergence, while the light-cone formulation for currents and shadows is obtained by using gauge invariant approach to currents and shadows. This allows us to demonstrate explicitly how ladder operators entering the gauge invariant formulation of fields, currents, and shadows manifest themselves in the light-cone formulation for fields, currents, and shadows.
description: 25 pages, LaTeX-2e. v2: In section 6, discussion of various technical details added. Typos corrected. Table 7 and references added
Bosonic Anomalies, Induced Fractional Quantum Numbers and Degenerate Zero Modes: the anomalous edge physics of Symmetry-Protected Topological States
Creators: name: Wang, Juven
name: Santos, Luiz H.
name: Wen, Xiao-Gang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The boundary of symmetry-protected topological states (SPTs) can harbor new quantum anomaly phenomena. In this work, we characterize the bosonic anomalies introduced by the 1+1D non-onsite-symmetric gapless edge modes of 2+1D bulk bosonic SPTs with a generic finite Abelian group symmetry (isomorphic to $G=\prod_i Z_{N_i}=Z_{N_1} \times Z_{N_2} \times Z_{N_3} \times ...$). We demonstrate that some classes of SPTs (termed "Type II") trap fractional quantum numbers (such as fractional $Z_N$ charges) at the 0D kink of the symmetry-breaking domain walls; while some classes of SPTs (termed "Type III") have degenerate zero energy modes (carrying the projective representation protected by the unbroken part of the symmetry), either near the 0D kink of a symmetry-breaking domain wall, or on a symmetry-preserving 1D system dimensionally reduced from a thin 2D tube with a monodromy defect 1D line embedded. More generally, the energy spectrum and conformal dimensions of gapless edge modes under an external gauge flux insertion (or twisted by a branch cut, i.e., a monodromy defect line) through the 1D ring can distinguish many SPT classes. We provide a manifest correspondence from the physical phenomena, the induced fractional quantum number and the zero energy mode degeneracy, to the mathematical concept of cocycles that appears in the group cohomology classification of SPTs, thus achieving a concrete physical materialization of the cocycles. The aforementioned edge properties are formulated in terms of a long wavelength continuum field theory involving scalar chiral bosons, as well as in terms of Matrix Product Operators and discrete quantum lattice models. Our lattice approach yields a regularization with anomalous non-onsite symmetry for the field theory description. We also formulate some bosonic anomalies in terms of the Goldstone-Wilczek formula.
description: 29 pages, 12 Figures. v3 clarification to be accessible for both HEP and CMT. Thanks to Roman Jackiw for introducing new Refs
Creature forcing and five cardinal characteristics in Cichoń's diagram
Creators: name: Fischer, Arthur
name: Goldstern, Martin
name: Kellner, Jakob
name: Shelah, Saharon
Publisher: name: arXiv
Year: 2014
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: We use a (countable support) creature construction to show that consistently \[ \mathfrak d=\aleph_1= \text{cov}(\text{NULL}) < \text{non}(\text{MEAGER}) < \text{non}(\text{NULL}) < \text{cof}(\text{NULL}) < 2^{\aleph_0}. \] The same method shows the consistency of \[ \mathfrak d=\aleph_1= \text{cov}(\text{NULL}) < \text{non}(\text{NULL}) < \text{non}(\text{MEAGER}) < \text{cof}(\text{NULL}) < 2^{\aleph_0}. \]
description: (new version: error in the last paragraph corrected)
Class of Higgs-portal Dark Matter models in the light of gamma-ray excess from Galactic center
Creators: name: Basak, Tanushree
name: Mondal, Tanmoy
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently the study of anomalous gamma-ray emission in the regions surrounding the galactic center has drawn a lot of attention as it points out that the excess of $\sim 1-3$ GeV gamma-ray in the low latitude is consistent with the emission expected from annihilating dark matter. The best-fit to the gamma-ray spectrum corresponds to dark matter (DM) candidate having mass in the range $\sim 31-40$ GeV annihilating into $b\bar{b}$-pair with cross-section $\langle σv \rangle = (1.4-2.0)\times 10^{-26}\;\textrm{cm}^3 \textrm{sec}^{-1}$. We have shown that the Higgs-portal dark matter models in presence of scalar resonance (in the annihilation channel) are well-suited for explaining these phenomena. In addition, the parameter space of these models also satisfy constraints from the LHC Higgs searches, relic abundance and direct detection experiments. We also comment on real singlet scalar Higgs-portal DM model which is found to be incompatible with the recent analysis.
description: v3: Matches published version. Figures 2 & 3 are modified. 6 Pages. 4 Figures. v2 : References added
On the cyclotron absorption line and evidence of the spectral transition in SMC X-2 during 2022 giant outburst
Creators: name: Jaisawal, G. K.
name: Vasilopoulos, G.
name: Naik, S.
name: Maitra, C.
name: Malacaria, C.
name: Chhotaray, B.
name: Gendreau, K. C.
name: Guillot, S.
name: Ng, M.
name: Sanna, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report comprehensive spectral and temporal properties of the Be/X-ray binary pulsar SMC X-2 using X-ray observations during the 2015 and 2022 outbursts. The pulse profile of the pulsar is unique and strongly luminosity dependent. It evolves from a broad-humped into a double-peaked profile above luminosity 3$\times$10$^{38}$ ergs s$^{-1}$. The pulse fraction of the pulsar is found to be a linear function of luminosity as well as energy. We also studied the spectral evolution of the source during the latest 2022 outburst with NICER. The observed photon index shows a negative and positive correlation below and above the critical luminosity, respectively, suggesting evidence of spectral transition from the sub-critical to super-critical regime. The broadband spectroscopy of four sets of NuSTAR and XRT/NICER data from both outbursts can be described using a cutoff power-law model with a blackbody component. In addition to the 6.4 keV iron fluorescence line, an absorption-like feature is clearly detected in the spectra. The cyclotron line energy observed during the 2015 outburst is below 29.5 keV, however latest estimates in the 2022 outburst suggest a value of 31.5 keV. Moreover, an increase of 3.4 keV is detected in the cyclotron line energy at equal levels of luminosity observed in 2022 with respect to 2015. The observed cyclotron line energy variation is explored in terms of accretion induced screening mechanism or geometrical variation in line forming region.
description: 11 Pages, 11 figures, Accepted for Publication in MNRAS
ARBEITSBEDINGUNGEN IN DER GRABUNGSTECHNIK/ FELDARCHÄOLOGIE - BESTANDSAUFNAHME EINES BERUFSFELDES
Creators: name: Döbel, Susen
name: Felke, Karin
name: Gütter, Susanne
name: Heisig, Sophie Friederike
name: Höhler-Brockmann, Hajo
Publisher: name: Rundbrief Grabungstechnik
Year: 2023

description: Rundbrief Grabungstechnik, Bd. 19 (2021): Rundbrief Grabungstechnik
Mash sketched databases for: Mash Sketched Reference Dataset for Genome-Based Taxonomy and Comparative Genomics
Creators: name: Sánchez-Reyes, Ayixon
name: Fernández-López, Maikel Gilberto
Publisher: name: figshare
Year: 2023
Subjects: Bioinformatics and computational biology not elsewhere classified
Genomics
Microbiology not elsewhere classified
Mycology
Bacteriology

description: Accessible Reference Data for Genome-Based Taxonomy and Comparative Genomics is a set of mash sketched genomic data (*.msh)
 To use it, you only have to download the dataset of your choice, and with the mash tool you can run genomic comparisons. Last update September 2021

 Bacteria_Archaea_type_assembly_set.msh contain 17,442 type genomes from NCBI Bacteria_Archaea_type_proteome_set.msh contain 12,767 type predicted proteomes from NCBI GTDB_r202_assembly_set.msh contain 47,894 genomes from GTDB Fungi_type_assembly_set.msh contain 801 type genomes from NCBI Fungi_type_proteome_set.msh contain 248 type predicted proteomes from NCBI Virus_Sept21_GenBank_assembly_set.msh contain 44,916 viral assemblies from NCBI Soil_Metgenome_assembly_set.msh contain 479 soil metagenomes from NCBI Freshwater_Metagenome_assembly_set.msh contain 611 freswater metagenomes from NCBI Fungal_Database.2022_genomic.fna.gz.msh contain 4,293 filamentous and yeast-like fungal genomes (*new*)