cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Assessment of genotoxicity induced by subchronic exposure to graphene in HaCaT human skin cell line
Creators: name: Frontiñan-Rubio, Javier
name: García-Carpintero, Sonia
name: González, Viviana Jehová
name: Vázquez, Ester
name: Durán-Prado, Mario
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: The applications of graphene-based materials (GBMs) and their processing involve prolonged contact with cellular barriers such as human skin. Even though the potential cytotoxicity of graphene has been studied in recent years, the impact of long-term graphene exposure has rarely been explored. We tested in the HaCaT epithelial cells, in vitro, the effect of subchronic treatments with sublethal doses of four different, well-characterized GBMs, two commercial graphene oxides (GO) and two few-layer graphenes (FLG). Cells were exposed weekly to low doses of the GBMs for 14 days, 30 days, 3 months, and 6 months. GBMs-cells uptake was assessed by confocal microscopy. Cell death and cell cycle were determined by fluorescence microscopy and cytometry. DNA damage was measured by comet assay and γ-H2AX staining, followed by the determination of p-p53 and p-ATR by immunolabeling. Subchronic exposure to different GBMs at noncytotoxic doses has potential genotoxic effects on HaCaT epithelial cells that can be recovered depending on the GBM and exposure time. Specifically, GO-induced genotoxicity can be detected after 14 and 30 days from treatment. At this time, FLG appears less genotoxic than GO, and cells can recover more quickly when genotoxic pressure disappears after some days of removal of the GBM. Long-term exposure, 3 and 6 months, to different GBMs induces permanent, nonreversible, genotoxic damage comparable to the exerted by arsenite. This should be considered for the production and future applications of GBMs in scenarios where low concentrations of the material interact chronically with epithelial barriers.
Uncovering soil piping vulnerability using direct current geophysical techniques in Awka, Anambra State, Nigeria
Creators: name: Chibuogwu, Ikechukwu
Publisher: name: figshare
Year: 2023
Subjects: Electrical and electromagnetic methods in geophysics

description: In recent times, there have been increasing reports of soil subsidence occurring in various parts of Anambra State, Nigeria. The formation of soil pipes in the subsurface, which has been reported by many researchers globally, is the chief cause of these subsidence incidents. Thus, this research aims to use Direct Current (DC) geophysical techniques to delineate the spatial distribution, pattern, and characteristics of these soil pipes at two sites: Awka Site 1 and Awka Site 2 both in Awka South LGA of Anambra state, Nigeria. Two electrodes array configurations - the dipole-dipole array for analyzing the Electrical Resistivity Tomography (ERT) and the Schlumberger array for analyzing the Vertical Electrical Sounding (VES) - were employed. Nine ERT profiles and eighteen soundings were carried out. The results from the ERT survey divided the subsurface into six distinct structures. The high-resistivity 3000-30000Ωm, the eroded structure with dry pore spaces, which mainly occur at the top of the profile, was interpreted as having the right conditions for the formation of soil pipes. The result from the VES survey revealed two to five different geo-electrical sections and fourteen distinctive sounding curves that are characterized by the vertical changes in the subsurface. The weathered soil with resistivity ranging from 1200-30000Ωm, which aggregates very close to the surface 0-5m of the study areas, was interpreted as having the best soil formations that allow the building of soil pipes. The 2D and 3D iso-resistivity maps obtained from the data of the VES show that soil pipes follow the NW-SE direction. This coincides with the stress direction, fluid migration paths, and sloppy terrains of the study areas.
Macrotarsomys bastardi Milne-Edwards and G. Grandidier 1898
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Macrotarsomys
Macrotarsomys bastardi

description: Macrotarsomys bastardi Milne-Edwards and G. Grandidier, 1898. Bull. Mus. Hist. Nat. Paris, ser. 1, 4:179. TYPE LOCALITY: Madagascar, Fianarantsoa Prov., east of Ihosy River, near Ravori; see Carleton and Schmidt (1990:14). DISTRIBUTION: Dryer regions of W and S Madagascar, including deciduous forest and open savannah. SYNONYMS: occidentalis.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 679, DOI: 10.5281/zenodo.7353098
description: {"references": ["Carleton, M. D., and D. F. Schmidt. 1990. Systematic studies of Madagascar's endemic rodents (Muroidea: Nesomyinae): An annotated gazetteer of collecting localities of known forms. American Museum Novitates, 2987: 1 - 36."]}
Three-cluster dynamics within an ab initio framework
Creators: name: Quaglioni, S.
name: Romero-Redondo, C.
name: Navrátil, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We introduce a fully antisymmetrized treatment of three-cluster dynamics within the ab initio framework of the no-core shell model/resonating-group method (NCSM/RGM). Energy-independent non-local interactions among the three nuclear fragments are obtained from realistic nucleon-nucleon interactions and consistent ab initio many-body wave functions of the clusters. The three-cluster Schrödinger equation is solved with bound-state boundary conditions by means of the hyperspherical-harmonic method on a Lagrange mesh. We discuss the formalism in detail and give algebraic expressions for systems of two single nucleons plus a nucleus. Using a soft similarity-renormalization-group evolved chiral nucleon-nucleon potential, we apply the method to an $^4$He+$n+n$ description of $^6$He and compare the results to experiment and to a six-body diagonalization of the Hamiltonian performed within the harmonic-oscillator expansions of the NCSM. Differences between the two calculations provide a measure of core ($^4$He) polarization effects.
description: 16 pages, 9 figures
FUNDAMENTOS PARA UMA LEITURA CRÍTICA DE HANS KELSEN NO.pdf
Creators: name: Pontes, José Antonio
Publisher: name: figshare
Year: 2020
Subjects: subject: 180122 Legal Theory, Jurisprudence and Legal Interpretation
subject: FOS: Law

description: Kelsen’s students know that the Pure Theory of Law is not a book but a “school” that has evolved during the twentieth century. The identification of a single “classic model of Kelsen” in philosophy of law cannot be achieved, due to the complexity of his thought. It is possible, however, to present Kelsen’s ideas according to his most striking statements. One can affirm that Kelsen sought to develop a
purist epistemological model for a science of law, which has become prominent by avoiding all metaphysics and also by formulating a rigorous and systematic rational method. Kelsen’s intention was to raise a theoretical monument, claiming the ultimate victory of pure reason as the best and final proposal to the scientific knowledge of the law. Among the problem that his proposal had to face was the distinction between law and morality, the separation of the concepts of validity and effectiveness as a corollary of his ethodological dualism of “is” and “ought” and the relationship between reason and will. Kelsen wanted to solve all these issues
by his the transcendental argument. But a rigorous analysis of these problems surrounding the basic norm (Grundnorm) reveals that critics were pertinent and really have challenged the analytical rigor of the Pure Theory of Law, leading the
author to change his ideas in the course of the several editions of the book. The purpose here is to revisit this historical moment from a comprehensive approach, since it’s in the basis of any investigation in jurisprudence nowadays.
Three questions about John von Neumann
Creators: name: Nathanson, Melvyn B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics
subject: 01A60

description: Review/essay of Ananyo Bhattacharya, The Man from the Future: The Visionary Life of John von Neumann.
description: 7 pages
Exploring information
Creators: name: Carter, Samuel
Publisher: name: No Publisher Supplied
Year: 2020

description: Conditionals are familiar tools, playing an important role in both reasoning and communication. According toorthodoxy, conditionals can be divided into two categories: indicatives and subjunctives. This thesis sets out to assess how these two are alike and how they differ.I argue that an austere account of this difference is available: conditionals, whether indicative or subjunctive, provide us with a way of investigating the status of the consequent under the supposition of the antecedent. In this way, both types of conditional are fundamentally tools for exploring information.
Radiation impacts on toxicity of cobalt–chromium (CoCr) implant debris
Creators: name: Trout, Kevin L.
name: Majumdar, Sanghamitra
name: Patri, Anil K.
name: Fahmi, Tariq
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Cell Biology
subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Particulate and soluble debris are generated by mechanical and non-mechanical degradation of implanted medical devices. Debris containing cobalt and chromium (CoCr) is known to cause adverse biological reactions. Implant-related complications are often diagnosed using radiography, which results in more frequent patient exposure to ionizing radiation. The aim of this study was to evaluate the potential for increased toxicity due to combined radiation and CoCr exposure. This was investigated using a controlled in vitro model consisting of commercially available CoCr debris that was generated from components of hip replacements and human cell lines relevant to the joint environment: endothelial HMEC-1 and synovial SW982. Particle sizes and shapes were heterogenous. Cells tended to internalize smaller particles, as observed by electron microscopy. Indicators of toxicity were measured after short (24 h after radiation) or extended (12–14 d after radiation) exposure timelines. In the short-term, CoCr reduced cell viability, increased apoptosis, and increased oxidative stress. The effects of radiation were not apparent until the timeline was extended. CoCr and radiation reduced cell survival, with both additive and synergistic effects. Mechanisms for reduced survival included rapid cell death caused by CoCr and senescence caused by radiation. In conclusion, results showed combined toxicological effects of CoCr and radiation at the doses and timelines used for this in vitro model. These observations warrant further investigation using other experimental models to determine translational impact.
Macrotarsomys ingens Petter 1959
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Macrotarsomys
Macrotarsomys ingens

description: Macrotarsomys ingens Petter, 1959. Mammalia, 23:140. TYPE LOCALITY: Madagascar, Mahajanga Prov., Ankarafantsika Reserve, near Ampijoroa. DISTRIBUTION: Known only from the type locality. COMMENTS: Occurs sympatrically with M. bastardi.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 679, DOI: 10.5281/zenodo.7353098
Nesomys Peters 1870
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Nesomys

description: Nesomys Peters, 1870. Sitzb. Ges. Naturf. Fr. Berlin, p. 54. TYPE SPECIES: Nesomys rufus Peters, 1870. SYNONYMS: Hallomys. COMMENTS: Major (1897) synonymized Jentink's (1879) Hallomys (type species = H. audeberti) under Nesomys and allocated the genus to the Cricetinae.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 679, DOI: 10.5281/zenodo.7353098
description: {"references": ["Major, C. I. F. 1897. On the Malagasy rodent genus Brachyuromys; and on the mutual relations of some groups of the Muridae (Hesperomyinae, Microtinae, Murinae, and \" Spalacidae \") with each other and with the Malagasy Nesomyinae. Proceedings of the Zoological Society of London, 1897: 695 - 720."]}
title: Entwicklung DMSO-kompatibler Alignment-Medien auf Polyisonitrilbasis
Creators: name: Hossain, Jhilmil
Publisher: name: UNSPECIFIED
Year: 2020

description: Diese Dissertation beschreibt die Synthese und Anwendung von helikal-chiralen Polyarylisonitrilen als Alignment-Medien in reinem DMSO. Hierzu wurde eine Vielzahl an neuartigen Polymeren mit Säure-funktionalisierten, Hydroxy-funktionalisierten und polar aprotischen Seitenketten systematisch hergestellt, die folgende Kriterien erfüllen sollten: DMSO-Löslichkeit, Bildung einer helikal-chiralen Überstruktur, Ausbildung einer lyotrop, flüssigkristallinen Phase und Anwendung als Alignment-Medium in reinem DMSO. Am Beispiel eines Modellanalyten konnte die erfolgreiche Anwendung eines Asparaginsäure-basierten Polyisonitrils als Alignment-Medium gezeigt werden, wobei eine ausgeprägte Enantiomeren-differenzierende Eigenschaft des Polymers festgestellt wurde. Insgesamt konnte demonstriert werden, dass die Polyisonitrile für den Einsatz als Alignment-Medium in reinem DMSO prinzipiell geeignet sind.
HeFDI Code School: Sustainable Research Software - Clean Code and Refactoring
Creators: name: Sven Marcus
name: Sören Peters
name: Jan Linxweiler
Publisher: name: Zenodo
Year: 2023
Subjects: RSE
Software Engineering
Clean Code
Refactoring

description: Scientific software is in many disciplines crucial for understanding and reusing research data and a cornerstone for reproducibility of research results. The HeFDI Code School adresses the need of especially early career researchers on learning how to create good scientific software and increase the quality of their code for better reusability and sustainability.

Together with the colleagues from Suresoft project and NFDI4Ing we offer a series of four workshops.

Participants of these workshops will learn

methods and techniques to increase the quality of their code,

how to produce understandable and therefore reusable code,

and to increase the sustainability of scientific software.

Workshop - May 26 - Clean Code and Refactoring

In the scientific environment with ever-changing requirements, it is important to produce source code that can be read, understood and modified by ourselves or others. This workshop will teach you how to apply clean code principles and refactoring techniques to produce high quality, maintainable code.

Agenda:

Motivation

Clean Code and Refactoring with interactive hands-on examples

Tipps for working with Python
A study of $ηK \bar K$ and $η' K \bar K$ with the fixed center approximation to Faddeev equations
Creators: name: Liang, Weihong
name: Xiao, C. W.
name: Oset, E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In the present work we investigate the three-body systems of $ηK \bar K$ and $η' K \bar K$, by taking the fixed center approximation to Faddeev equations. We find a clear and stable resonance structure around 1490 MeV in the squared $ηK \bar K$ scattering amplitude, which is not sensitive to the renormalization parameters. Conversely, we get only an enhancement effect of the threshold in the $η' K \bar K$ amplitude that indicates the difficulty to bind the $η' K \bar K$ system as a consequence of a weaker $η' K$ interaction than the $ηK$ one. We associate the $ηK \bar K$ state found to the $η(1475)$.
description: with comment on other work. scale in figures modified. arXiv admin note: text overlap with arXiv:1207.4030
title: Архитектурное проектирование зданий общеобразовательных организаций
Creators: name: ELS IPR BOOKS
Publisher: name: Ростовский государственный строительный университет
Year: 2014

description: Изложены теоретические и практические основы архитектурного проектирования зданий общеобразовательных организаций. Использованы действующие нормативные документы, результаты современных зарубежных и отечественных исследований в области проектирования и строительства зданий общеобразовательных организаций. Учтены современные требования по применению основных позиций устойчивой архитектуры, новых конструктивных и технологических решений. Ориентировано на студентов, обучающихся по направлениям подготовки 07.03.01 «Архитектура», 07.04.01 «Архитектура» (магистратура), 07.03.02 «Реконструкция и реставрация архитектурного наследия», 07.03.04 «Градостроительство», 08.03.01 «Строительство» и может быть полезным для студентов, обучающихся по специальности 271101 «Строительство уникальных зданий и сооружений». Предназначено для студентов архитектурно-строительных вузов и факультетов.
Spin-5 Casimir Operator and Its Three-Point Functions with Two Scalars
Creators: name: Ahn, Changhyun
name: Kim, Hyunsu
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: By calculating the second-order pole in the operator product expansion (OPE) between the spin-3 Casimir operator and the spin-4 Casimir operator known previously, the spin-5 Casimir operator is obtained in the coset model based on (A_{N-1}^{(1)} \oplus A_{N-1}^{(1)}, A_{N-1}^{(1)}) at level (k,1). This spin-5 Casimir operator consisted of the quintic, quartic (with one derivative) and cubic (with two derivatives) WZW currents contracted with SU(N) invariant tensors. The three-point functions with two scalars for all values of 't Hooft coupling in the large N limit were obtained by analyzing the zero-mode eigenvalue equations carefully. These three-point functions were dual to those in AdS_3 higher spin gravity theory with matter. Furthermore, the exact three-point functions that hold for any finite N and k are obtained. The zero mode eigenvalue equations for the spin-5 current in CFT coincided with those of the spin-5 field in asymptotic symmetry algebra of the higher spin theory on the AdS_3. This paper also describes the structure constant appearing in the spin-4 Casimir operator from the OPE between the spin-3 Casimir operator and itself for N=4, 5 in the more general coset minimal model with two arbitrary levels (k_1, k_2).
description: 71 pages; many improvements in the whole paper done and to appear in JHEP
Analysis of mixing structures in the Adriatic Sea using finite-size Lyapunov exponents
Creators: name: Hariri, Saeed
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Inorganic Chemistry

description: In this paper, we report on the mixing structures and transport properties of the Adriatic Sea surface, as a semi-enclosed basin of the Mediterranean Sea, from October 2006 until December 2011. Lagrangian transport models were used to simulate synthetic trajectories from the mean flow fields obtained by the Massachusetts Institute of Technology general circulation model implemented for the Adriatic. We examine the dispersion properties of numerical pair particles, through the calculation of time-averaged finite-size Lyapunov exponents (FSLEs) in the Adriatic Sea during selected months in each year. The results show the significant effects of river runoff and wind forcing, especially the Bora wind field, on the mixing activities of numerical pair particles by the generation of vortices, which appear as a tangle of filaments on the FSLE maps. The stretch/compression lines, which contain high values of the FSLEs, work as robust transport barriers, most having been detected along boundary currents on the eastern and western flanks of the Adriatic, particularly during winter. Numerical experiments have indicated that stable flows, with less mixing activity, occur in the northern part of the Adriatic in June and September of each year, while the Southern Adriatic Pit has flows with larger seasonal fluctuations and high values of eddy kinetic energy because of the influence of wind and energetic currents entering from the Ionian Sea.
HeFDI Code School: Sustainable Research Software - Clean Code and Refactoring
Creators: name: Marcus, Sven
name: Peters, Sören
name: Linxweiler, Jan
Publisher: name: Zenodo
Year: 2023
Subjects: RSE
Software Engineering
Clean Code
Refactoring

description: Scientific software is in many disciplines crucial for understanding and reusing research data and a cornerstone for reproducibility of research results. The HeFDI Code School adresses the need of especially early career researchers on learning how to create good scientific software and increase the quality of their code for better reusability and sustainability. Together with the colleagues from Suresoft project and NFDI4Ing we offer a series of four workshops. Participants of these workshops will learn methods and techniques to increase the quality of their code, how to produce understandable and therefore reusable code, and to increase the sustainability of scientific software. Workshop - May 26 - Clean Code and Refactoring In the scientific environment with ever-changing requirements, it is important to produce source code that can be read, understood and modified by ourselves or others. This workshop will teach you how to apply clean code principles and refactoring techniques to produce high quality, maintainable code. Agenda: Motivation Clean Code and Refactoring with interactive hands-on examples Tipps for working with Python
Nesomys rufus Peters 1870
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Nesomys
Nesomys rufus

description: Nesomys rufus Peters, 1870. Sitb. Ges. Naturf. Fr. Berlin, p. 55. TYPE LOCALITY: Madagascar, Antsiranana Prov., Vohima. DISTRIBUTION: Broadly distributed in N and E forest (audeberti and rufus), and one locality in WC Madagascar (lambertoni). SYNONYMS: audeberti, lambertoni. COMMENTS: Ellerman (1941, 1949a) listed audeberti and lambertoni as species as described, but Petter (1972c, 1975a) arranged them as subspecies of N. rufus. Carleton and Schmidt (1990) indicated that each will stand as a species upon revision.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 679, DOI: 10.5281/zenodo.7353098
description: {"references": ["Ellerman, J. R. 1941. The families and genera of living rodents. Vol. II. Family Muridae. British Museum (Natural History), London, 690 pp.", "Ellerman, J. R. 1949 a. The families and genera of living rodents. Vol. III, Appendix II [Notes on the rodents from Madagascar in the British Museum, and on a collection from the island obtained by Mr. C. S. Webb]. British Museum (Natural History), London, 210 pp.", "Petter, F. 1972 c. The rodents of Madagascar: The seven genera of Malagasy rodents. Pp. 661 - 666, in Biogeography and ecology in Madagascar (R. Battistini and G. Richard-Vincard, eds.). Monographiae Biologicae, 21: 1 - 765.", "Petter, F. 1975 a. Family Cricetidae: Subfamily Nesomyinae, Part 6.2. Pp. 1 - 4, in The mammals of Africa: An identification manual (J. Meester and H. W. Setzer, eds.) [issued 10 Dec 1975]. Smithsonian Institution Press, Washington, D. C., not continuously paginated.", "Carleton, M. D., and D. F. Schmidt. 1990. Systematic studies of Madagascar's endemic rodents (Muroidea: Nesomyinae): An annotated gazetteer of collecting localities of known forms. American Museum Novitates, 2987: 1 - 36."]}
Automorphisms of Calabi-Yau threefolds with Picard number three
Creators: name: Lazić, Vladimir
name: Oguiso, Keiji
name: Peternell, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J32, 14J50

description: We prove that the automorphism group of a Calabi-Yau threefold with Picard number three is either finite, or isomorphic to the infinite cyclic group up to finite kernel and cokernel.
title: Does Okun's law suffer from COVID-19? Evidence from Europe and the US - A Research Note
Creators: name: Stadtmann, Georg
name: Russnak, Jan
name: Zimmermann, Lilli
Publisher: name: Europa-Universität Viadrina Frankfurt
Year: 2023

description: We analyse the effect of COVID-19 on the Okun's law relationship for several EU countries and the US. Results are based on regressions and a systematic DF-Beta analysis. Our results indicate that the year 2020 is an outlier in the Okun relationship. However, the direction of change is different in the European countries compared to the US.
description: Discussion papers of the Faculty of Business Administration and Economics; 428
Quantum Input-Output Theory for Optical Cavities with Arbitrary Coupling Strength: Application to Two-Photon Wave-Packet Shaping
Creators: name: Raymer, M. G.
name: McKinstrie, C. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop quantum-optical input-output theory for resonators with arbitrary coupling strength, and for input fields whose spectrum can be wider than the cavity free-spectral range, while ensuring that the field-operator commutator relations in space-time variables are correct. The cavity-field commutator exhibits a series of space-time echoes, representing causal connections of certain space-time points by light propagation. We apply the theory to two-photon wave-packet shaping by cavity reflection, which displays a remarkable illustration of dispersion cancellation. We also show that the theory is amenable to inclusion of intracavity absorbing and emitting atoms, allowing, for example, dissipative losses within the cavity to be incorporated in a quantum mechanically correct way.
description: v1: Submitted to Phys Rev A (July 14 2013) v2: Accepted Sep. 2013
High-threshold topological quantum error correction against biased noise
Creators: name: Stephens, Ashley M.
name: Munro, William J.
name: Nemoto, Kae
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum information can be protected from decoherence and other errors, but only if these errors are sufficiently rare. For quantum computation to become a scalable technology, practical schemes for quantum error correction that can tolerate realistically high error rates will be necessary. In some physical systems, errors may exhibit a characteristic structure that can be carefully exploited to improve the efficacy of error correction. Here, we describe a scheme for topological quantum error correction to protect quantum information from a dephasing-biased error model, where we combine a repetition code with a topological cluster state. We find that the scheme tolerates error rates of up to 1.37%-1.83% per gate, requiring only short-range interactions in a two-dimensional array.
description: 5 pages, 3 figures
Age-related Differences in Substrate Oxidation but not Exercise Oxygen Transients During 24 Hours in a Whole-room Calorimeter
Creators: name: Smith, Zoe
Publisher: name: University of Massachusetts Amherst
Year: 2023

description:
Previous studies of age-related differences in substrate oxidation over 24 hours and during exercise have provided divergent results, leaving it unclear how and if substrate oxidation is influenced with aging. The purpose of this study was to evaluate age-related differences in substrate oxidation during distinct periods of a 24-hr stay in a room calorimeter: over the entire 24 hours, during activities of daily living (ADLs), and during a 30-min treadmill walk (30MTW, at 1.3 m·s-1). Further, oxygen consumption transients were quantified in response to the 30MTW. Gas exchange measures were obtained during an incremental treadmill test in 9 young (28 + 3 yr) and 6 older (71 + 5 yr) healthy males to quantify VO2peak. On a separate visit, oxygen consumption (VO2) and carbon dioxide production (VCO2) were measured throughout a 24-hr stay in a whole-room calorimeter, and used to determine substrate oxidation from carbohydrate (CHO) and fat for the selected periods. Energy expenditure (EE), CHO oxidation, and fat oxidation were normalized to lean mass (kJ∙kg LM-1), determined by dual energy x-ray absorptiometry. Oxygen consumption on- (oxygen deficit, mL) and off- (rate constant for VO2 decay) transients were determined in response to the 30MTW. As expected, VO2peak (ml∙kg-1 LM∙min-1) was ~24% lower in older compared to young (p=0.021). EE (kJ∙kg LM-1) did not differ significantly by group for any period (p>0.099). Compared with young, older oxidized less CHO over 24 hr (p0.053). In contrast, during the 30MTW CHO oxidation did not differ by group (p>0.148), but older oxidized more fat per LM than young (p=0.002). The contrast in substrate selection between the lower-intensity ADLs (~16 and 20% VO2peak in young and older) and the 30MTW (~28 and 39% VO2peak in young and older) is consistent with a crossover from predominantly fat to CHO at a relatively higher VO2peak (relative to LM and %peak) in this group of relatively fit older males. Notably, when expressed as a percent of total substrate oxidation, older oxidized relatively more fat and less CHO over 24 hr (p=0.012), ADLs (p
Molecular Biodiversity of Foraminifera
Creators: name: Thakur, Rabindra
Publisher: name: University of Massachusetts Amherst
Year: 2023

description:
Foraminifera are a diverse clade of mostly shell-building single-celled organisms. Estimation of foraminiferal diversity is critical for understanding past and present climatic conditions, as they are highly sensitive to environmental perturbations. Biodiversity estimates of foraminifera began with the counting of test (i.e., shell) microfossils composed of calcium carbonate, as they are well preserved in sediment samples. However, this view has changed with molecular biodiversity estimates, which suggest that early-diverging single-chamber (i.e., "monothalamid") species that lack preservation ability are more diverse than anticipated. Although biodiversity estimates of foraminifera at the molecular level have changed our perceptions, they possess various challenges, especially with metabarcoding approaches. The metabarcoding approach is challenging in foraminifera because small subunit ribosomal (SSU) rRNA gene does not PCR amplify "universal" eukaryotic primers due to the presence of large insertions. Therefore, studies of foraminiferal diversity require targeted primers. Similarly, the pair-wise sequence similarity approach to taxonomic resolution can be problematic for Foraminifera, as fewer matching reference database exists for “monothalamids”- this requires the use of a more robust phylogeny-informed taxonomy, which provides a taxonomic identification for each sequence. Also, the appropriateness of recently developed metabarcoding tools still needs validation and comparison with clustering approaches for foraminiferal biodiversity estimation. This chapter introduces the current state of knowledge of foraminiferal biodiversity while also describing the knowledge gaps addressed in this thesis.
Modeling Spatial Distributions of Tidal Marsh Blue Carbon using Morphometric Parameters from Lidar
Creators: name: Turek, Bonnie
Publisher: name: University of Massachusetts Amherst
Year: 2023

description:
Tidal marshes serve as important “blue carbon” ecosystems that accrete large amounts of carbon with limited area. While much attention has been paid to the spatial variability of sedimentation within salt marshes, less work has been done to characterize spatial variability in marsh carbon density. Driven by tidal inundation, surface topography, and sediment supply, soil properties in marshes vary spatially with several parameters, including marsh platform elevation and proximity to the marsh edge and tidal creek network. We used lidar to extract these morphometric parameters from tidal marshes to map soil organic carbon (SOC) at the meter scale. Fixed volume soil samples were collected at four northeast U.S. tidal marshes with distinctive morphologies to aid in building our predictive models. Tidal creek networks were delineated from 1-m resolution topo-bathy lidar data using a semi-automated workflow in GIS. Sample distance to tidal creeks and flow distance to the marsh edge were then determined. Log-linear multivariate regression models were developed to predict soil organic content, bulk density, and carbon density as a function of these predictive metrics at each site and across sites. Results show that modeling salt marsh soil characteristics with morphometric inputs works best in marshes with simple, single creek morphologies. Distance from tidal creeks was the most significant model predictor. Addition of distance to the inlet and tidal range as regional metrics significantly improves cross-site modeling. Our process-based approach results in predicted total marsh carbon stocks comparable to previous studies but provides trade-offs to existing simplistic carbon mapping methods. Further, we provide motivation to continue rigorous mapping of soil carbon at fine spatial resolutions and to use these results to guide salt marsh restoration projects and aid in the development of carbon markets.
The Use of Biological Soil Health Indicators to Quantify the Benefits of Cover Crops
Creators: name: Wu, Alexander
Publisher: name: University of Massachusetts Amherst
Year: 2023

description:
Soils provide many essential functions that support the world. With a decline in soil health, these functions also decrease in efficiency, and can threaten the health of billions of people around the world. Typically, soil health tests do not use biological indicators, however microbes drive and perform vital functions to increase soil health. One way to increase soil health is through the use of cover crops to reduce soil erosion during fallow periods, increasing soil organic matter, as well as collecting nutrients from soil into their biomass. These cover crops are then terminated through various methods such as herbicides, disk tillage, or no tillage. The termination method can have an impact on soil health, by chemically affecting soil microbes with herbicides, disturbing soil, microbial communities, and fungi with tillage, or creating residue barriers on the surface of soil such as with using roller crimping (no tillage). Fertilization can also affect soil health, controlling rates of nutrient turnover and decomposition through the needs of microbes for carbon and nitrogen. This study quantifies the effects of four termination methods and four fertilization treatments on soil biological indicators during one growing season of sweet corn. Plots that were not tilled and terminated using roller crimping showed highest rates of decomposition, as well as increased labile carbon pools to feed microbes slowly throughout the growing season. Microbial activity was also observed to respond to fertilization, as patterns in activity spiked directly after fertilization. This study informs agricultural land management by the usage of biological indicators to further support the use of cover crops to increase soil health along with using no-till termination methods. Root biomass contributions toward soil health was also investigated, and how they may be affected by tillage.
Heterogeneous IoT Network Architecture Design for Age of Information Minimization
Creators: name: Xia, Xiaohao
Publisher: name: University of Massachusetts Amherst
Year: 2023

description:
Timely data collection and execution in heterogeneous Internet of Things (IoT) networks in which different protocols and spectrum bands coexist such as WiFi, RFID, Zigbee, and LoRa, requires further investigation. This thesis studies the problem of age-of-information minimization in heterogeneous IoT networks consisting of heterogeneous IoT devices, an intermediate layer of multi-protocol mobile gateways (M-MGs) that collects and relays data from IoT objects and performs computing tasks, and heterogeneous access points (APs). A federated matching framework is presented to model the collaboration between different service providers (SPs) to deploy and share M-MGs and minimize the average weighted sum of the age-of-information and energy consumption. Further, we develop a two-level multi-protocol multi-agent actor-critic (MP-MAAC) to solve the optimization problem, where M-MGs and SPs can learn collaborative strategies through their own observations. The M-MGs' strategies include selecting IoT objects for data collection, execution, relaying, and/or offloading to SPs’ access points while SPs decide on spectrum allocation. Finally, to improve the convergence of the learning process we incorporate federated learning into the multi-agent collaborative framework. The numerical results show that our Fed-Match algorithm reduces the AoI by factor four, collects twice more packets than existing approaches, reduces the penalty by factor five when enabling relaying, and establishes design principles for the stability of the training process.
Particle in a self-dual dyon background: hidden free nature, and exotic superconformal symmetry
Creators: name: Plyushchay, Mikhail S.
name: Wipf, Andreas
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that a non-relativistic particle in a combined field of a magnetic monopole and 1/r^2 potential reveals a hidden, partially free dynamics when the strength of the central potential and the charge-monopole coupling constant are mutually fitted to each other. In this case the system admits both a conserved Laplace-Runge-Lenz vector and a dynamical conformal symmetry. The supersymmetrically extended system corresponds then to a background of a self-dual or anti-self-dual dyon. It is described by a quadratically extended Lie superalgebra D(2,1;alpha) with alpha=1/2, in which the bosonic set of generators is enlarged by a generalized Laplace-Runge-Lenz vector and its dynamical integral counterpart related to Galilei symmetry, as well as by the chiral Z_2-grading operator. The odd part of the nonlinear superalgebra comprises a complete set of 24=2 x 3 x 4 fermionic generators. Here a usual duplication comes from the Z_2-grading structure, the second factor can be associated with a triad of scalar integrals --- the Hamiltonian, the generator of special conformal transformations and the squared total angular momentum vector, while the quadruplication is generated by a chiral spin vector integral which exits due to the (anti)-self-dual nature of the electromagnetic background.
description: 23 pages; refs and comments added, version to appear in Phys. Rev. D
AL MUFIID KITOBINING SARF KITOBLAR ORASIDA TUTGAN O`RNI
Creators: name: Musaev, Islomxon
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqola Mahmud ibn Umar az-Zamaxshariyning "Al-Mufid fi at-Tasrif" kitobining sarf ilmi tarixidagi o‘rnini yoritishga bag‘ishlangan. Mazkur asar qisqacha bo‘lib, sarf ilmining asosiy mavzularini yoritadi va talabalar uchun soddalashtirilgan uslubda yozilgan. Biroq, u boshqa Zamaxshariy asarlari singari keng tarqalmagan va kam nusxalarda yetib kelgan. Tadqiqot kitobning mavjud yagona qo‘lyozmasi asosida uning tarkibi, metodologiyasi hamda sarf ilmidagi ahamiyatini tahlil qiladi. Shuningdek, qo‘lyozmaning tavsifi, nusxa xatolari va matnni ilmiy-tanqidiy nashrga tayyorlash uslubi ham batafsil yoritiladi.
Interpretation of experimental results on Kondo systems with crystal field
Creators: name: Romero, M. A.
name: Aligia, A. A.
name: Sereni, J. G.
name: Nieva, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a simple approach to calculate the thermodynamic properties of single Kondo impurities including orbital degeneracy and crystal field effects (CFE) by extending a previous proposal by K. D. Schotte and U. Schotte [Physics Lett. A 55, 38 (1975)]. Comparison with exact solutions for the specific heat of a quartet ground state split into two doublets shows deviations below $10\%$ in absence of CFE and a quantitative agreement for moderate or large CFE. As an application, we fit the measured specific heat of the compounds CeCu$_2$Ge$_2$, CePd$_{3}$Si$_{0.3}$, CePdAl, CePt, Yb$_2$Pd$_2$Sn and YbCo$_2$Zn$_{20}$. The agreement between theory and experiment is very good or excellent depending on the compound, except at very low temperatures due to the presence of magnetic correlations (not accounted in the model).
Otomys F. Cuvier 1824
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Otomys

description: Otomys F. Cuvier, 1824. Dents des Mammifères, p. 255. TYPE SPECIES: Euryotis irrorata Brants, 1827. SYNONYMS: Anchotomys, Euryotis, Lamotomys, Metotomys, Myotomys, Oreinomys, Oreomys, Palaeotomys. COMMENTS: Bohmann (1952) included all otomyine species in Otomys, but most classifications have accorded the large-bullar forms seperate generic status as Parotomys (see below). Other synonyms have been infrequently treated as genera, namely Myotomys, including unisulcatus and sloggetti (see Thomas, 1918b; Pocock, 1976), and Lamotomys, including laminatus (see Roberts, 1951). Oldest known fossil Otomys species date from late Pliocene (2-3 mya) in South Africa and from early Pleistocene (1-2 mya) in East Africa (see Denys, 1989).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 680, DOI: 10.5281/zenodo.7353098
description: {"references": ["Brants, A. 1827. Het Geslacht der muizen door Linnaeus opgesteld, volgens de tegenswoordige toestand der wetenschap in familien, geslachten en soorten verdeeld. Academische Boekdrukkerij, Berlijn, 190 pp.", "Bohmann, L., von. 1952. Die afrikanische Nagergattung Otomys F. Cuvier. Zeitschrift fur Saugetierkunde, 18: 1 - 80.", "Thomas, O. 1918 b. A revised classification of the Otomyinae, with descriptions of new genera and species. Annals and Magazine of Natural History, ser. 9, 2: 203 - 211.", "Pocock, T. N. 1976. Pliocene mammalian microfauna from Langebaanweg: A new fossil genus linking the Otomyinae with the Murinae. South African Journal of Science, 72: 58 - 60.", "Roberts, A. 1951. The mammals of South Africa. Trustees of \" The mammals of South Africa \" book fund, Johannesburg, 700 pp."]}
Growth Rates of Algebras, II: Wiegold Dichotomy
Creators: name: Kearnes, Keith A.
name: Kiss, Emil W.
name: Szendrei, Agnes
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 08A30 (Primary), 08B05, 08B10 (Secondary)

description: We investigate the function $d_\mathbf{A}(n)$, which gives the size of a least size generating set for $\mathbf{A}^n$, in the case where $\mathbf{A}$ has a cube term. We show that if $\mathbf{A}$ has a $k$-cube term and $\mathbf{A}^k$ is finitely generated, then $d_\mathbf{A}(n) \in O(\log(n))$ if $\mathbf{A}$ is perfect and $d_\mathbf{A}(n) \in O(n)$ if $\mathbf{A}$ is imperfect. When $\mathbf{A}$ is finite, then one may replace "Big Oh" with "Big Theta" in these estimates.
description: Second paper in a series of three, but complete in itself
Otomys anchietae Bocage 1882
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Otomys
Otomys anchietae

description: Otomys anchietae Bocage, 1882. J. Sci. Acad. Lisbon, 9:26. TYPE LOCALITY: Angola, Huila, Caconda. DISTRIBUTION: Isolated segments in C Angola, SW Tanzania, N Malawi, and W Kenya. SYNONYMS: barbouri, lacustris. COMMENTS: Type species of Anchotomys, employed as a subgenus of Otomys by Thomas (1918b). Believed to be closely related to O. irroratus (Bohmann, 1952), if not conspecific with it (Petter, 1982). Dieterlen and Van der Straeten (1992) treated barbouri and lacustris as separate species.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 680, DOI: 10.5281/zenodo.7353098
description: {"references": ["Thomas, O. 1918 b. A revised classification of the Otomyinae, with descriptions of new genera and species. Annals and Magazine of Natural History, ser. 9, 2: 203 - 211.", "Bohmann, L., von. 1952. Die afrikanische Nagergattung Otomys F. Cuvier. Zeitschrift fur Saugetierkunde, 18: 1 - 80.", "Petter, F. 1982. Les parentes des Otomys du Mont Oku (Cameroun) et des autres formes rapportees a O. irroratus (Brants, 1827) (Rodentia, Muridae). Bonner Zoologische Beitrage, 33: 215 - 222.", "Van der Straeten, E., and F. Dieterlen. 1992. Craniometrical comparison of four populations of Praomys jacksoni captured at different heights in Eastern Zaire (Kivu). Mammalia, 56: 125 - 131."]}
Spin-dependent shot noise enhancement in a quantum dot
Creators: name: Ubbelohde, Niels
name: Fricke, Christian
name: Hohls, Frank
name: Haug, Rolf J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin-dependent dynamical blockade was investigated in a lateral quantum dot in a magnetic field. Spin-polarized edge channels in the two-dimensional leads and the spatial distribution of Landau orbitals in the dot modulate the tunnel coupling of the quantum dot level spectrum. In a measurement of the electron shot noise we observe a pattern of super-Poissonian noise which is correlated to the spin-dependent competition between different transport channels.