cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Rigorous Proof of the Index Theorem for Economists
Creators: name: Hosoya, Yuhki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Theoretical Economics (econ.TH)
subject: Geometric Topology (math.GT)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: 91B24, 57R25

description: This paper provides a rigorous and gap-free proof of the index theorem used in the theory of regular economy. In the index theorem that is the subject of this paper, the assumptions for the excess demand function are only several usual assumptions and continuous differentiability around any equilibrium price, and thus it has a form that is applicable to many economies. However, the textbooks on this theme contain only abbreviated proofs and there is no known monograph that contains a rigorous proof of this theorem. Hence, the purpose of this paper is to make this theorem available to more economists by constructing a readable proof.
Smaraldia springthorpei Lowry & Stoddart 2012, sp. nov.
Creators: name: Lowry, J. K.
name: Stoddart, H. E.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Pakynidae
Smaraldia
Smaraldia springthorpei

description: Smaraldia springthorpei sp. nov. (Figs 42, 43) Type material. HOLOTYPE, female, 4.3 mm, AM P.39217, rocks near Migo Island, Port Harding, Torbay Bay, Western Australia, 35°04'S 117°39'E, 6–7 m, small branched alga with compound tunicate on underside of branches, 15 December 1983, R. T. Springthorpe & J.K. Lowry, stn WA-152. PARATYPE, female, 4 mm, AM P.39218, Burnie, Tasmania, Australia, 41°04'S 145°54'E, 2 m, rocky bottom, 24 June–11 July 1985, D.A. Ritz. Type locality. Rocks near Migo Island, Port Harding, Torbay Bay, Western Australia, Southern Ocean, 35°04'S 117°39'E, 6–7 m depth. Etymology. Named for Roger Springthorpe, who collected many of the species used in our lysianassoid studies and has made all of the plates. Description. Head lateral cephalic lobe large, broadly rounded; ventral margin curved. Antenna 1 peduncular article 1 without posterodistal spine; accessory flagellum 2-articulate, article 1 long; flagellum with strong 1-field callynophore in female, [male not known]. Mandible lacinia mobilis absent; lamina dentata absent; accessory setal row absent; molar absent; palp attached distally; palp article 2 broad, as long as article 3; article 3 tapered distally. Maxilla 1 outer plate with 7 setal-teeth in 4/3 arrangement, setal-teeth smooth; palp absent. Maxilliped inner plate absent; outer plate medium size; palp 4-articulate, article 4 large. Gnathopod 1 subchelate; ischium smaller than propodus, not swollen posteroproximally; carpus extremely compressed; propodus length about 1.8 × breadth, posterior margin absent, palm with produced corner, corner of palm without robust seta; dactylus reaching to corner of palm. Gnathopod 2 palm minute, obtuse. Pereonite 4 without dorsal spines. Pereonite 5 without dorsal spines. Pereopod 5 merus with posteroproximal shoulder. Pereopod 6 basis with posteroventral lobe weakly produced; merus as broad as long, without posteroproximal shoulder. Pereopod 7 basis subovate with posterior margin smooth. Epimeron 3 posterior margin without projections, posteroventral corner broadly rounded. Uropod 3 biramous, inner ramus extending less than halfway along outer ramus. Telson longer than broad, entire. Distribution. Southern Australia, Southern Ocean; 2–7 m depth.
description: Published as part of Lowry, J. K. & Stoddart, H. E., 2012, The Pachynidae fam. nov. (Crustacea: Amphipoda: Lysianassoidea) 3246, pp. 1-69 in Zootaxa 3246 (1) on pages 61-62, DOI: 10.11646/zootaxa.3246.1.1, http://zenodo.org/record/5249007
Attitudes towards dreaming: Effects of socio-demographic and religious variables in an American sample
Creators: name: Bulkeley, Kelly
name: Schredl, Michael
Publisher: name: International Journal of Dream Research
Year: 2019

description: This paper reports the findings of an analysis of an online survey of a large, demographically diverse group of American adults answering questions about their attitudes towards dreaming (N=5,255), with the goal of exploring factors like dream recall, age, gender, ethnicity, education, and religious orientation in relation to people’s positive and negative attitudes towards dreaming. In addition to confirming or disconfirming previous research regarding the effects of dream recall, age, and gender, this study examines three demographic variables that have not been previously considered in detail—ethnicity, education, and religious orientation—for possible connections with people’s attitudes towards dreaming. The results of the analysis confirm earlier findings that people with high dream recall tend to have more positive attitudes towards dreaming than people with low dream recall; women tend to have more positive attitudes towards dreaming than men; and younger people tend to have more positive attitudes towards dreaming than older people. Regarding ethnicity, blacks had more positive attitudes towards dreaming than whites, with Hispanics having aspects of both. People who are most opposed to religion (atheists) had the most negative attitudes towards dreaming, and people who follow an alternative religious path had the most positive attitudes towards dreaming, with Protestants and Roman Catholics in between. Education seemed to have less of an effect, with slightly more negative attitudes towards dreaming associated with higher levels of education.
description: International Journal of Dream Research, Vol 12, No 1 (April 2019)
Detection of stellar light from quasar host galaxies at redshifts above 6
Creators: name: Ding, Xuheng
name: Onoue, Masafusa
name: Silverman, John D.
name: Matsuoka, Yoshiki
name: Izumi, Takuma
name: Strauss, Michael A.
name: Jahnke, Knud
name: Phillips, Camryn L.
name: Li, Junyao
name: Volonteri, Marta
name: Haiman, Zoltan
name: Andika, Irham Taufik
name: Aoki, Kentaro
name: Baba, Shunsuke
name: Bieri, Rebekka
name: Bosman, Sarah E. I.
name: Bottrell, Connor
name: Eilers, Anna-Christina
name: Fujimoto, Seiji
name: Habouzit, Melanie
name: Imanishi, Masatoshi
name: Inayoshi, Kohei
name: Iwasawa, Kazushi
name: Kashikawa, Nobunari
name: Kawaguchi, Toshihiro
name: Kohno, Kotaro
name: Lee, Chien-Hsiu
name: Lupi, Alessandro
name: Lyu, Jianwei
name: Nagao, Tohru
name: Overzier, Roderik
name: Schindler, Jan-Torge
name: Schramm, Malte
name: Shimasaku, Kazuhiro
name: Toba, Yoshiki
name: Trakhtenbrot, Benny
name: Trebitsch, Maxime
name: Treu, Tommaso
name: Umehata, Hideki
name: Venemans, Bram P.
name: Vestergaard, Marianne
name: Walter, Fabian
name: Wang, Feige
name: Yang, Jinyi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The detection of starlight from the host galaxies of quasars during the reionization epoch ($z>6$) has been elusive, even with deep HST observations. The current highest redshift quasar host detected, at $z=4.5$, required the magnifying effect of a foreground lensing galaxy. Low-luminosity quasars from the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) mitigate the challenge of detecting their underlying, previously-undetected host galaxies. Here we report rest-frame optical images and spectroscopy of two HSC-SSP quasars at $z>6$ with JWST. Using NIRCam imaging at 3.6$μ$m and 1.5$μ$m and subtracting the light from the unresolved quasars, we find that the host galaxies are massive (stellar masses of $13\times$ and $3.4\times$ $10^{10}$ M$_{\odot}$, respectively), compact, and disk-like. NIRSpec medium-resolution spectroscopy shows stellar absorption lines in the more massive quasar, confirming the detection of the host. Velocity-broadened gas in the vicinity of these quasars enables measurements of their black hole masses ($1.4\times 10^9$ and $2.0\times$ $10^{8}$ M$_{\odot}$, respectively). Their location in the black hole mass - stellar mass plane is consistent with the distribution at low redshift, suggesting that the relation between black holes and their host galaxies was already in place less than a billion years after the Big Bang.
description: Matched to the published Nature version of the article. 27 pages, 4 main figures, 1 table, 6 supplementary figures, 2 supplementary table
Mesoplodon Gervais 1850
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Cetacea
Ziphiidae
Mesoplodon

description: Mesoplodon Gervais, 1850. Ann. Sei. Nat. Paris Zool., ser. 3, 14: 16. REVIEWED BY: M. Nishiwaki (MN). PROTECTED STATUS: CITES - Appendix II as Order Cetacea. ISIS NUMBER: 5301411005004000000.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Cetacea, pp. 290-304 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 300, DOI: 10.5281/zenodo.7352983
Classification of the direct limits of involution simple associative algebras and the corresponding dimension groups
Creators: name: Baranov, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: A classification of (countable) direct limits of finite dimensional involution simple associative algebras over an algebraically closed field of arbitrary characteristic is obtained. This also classifies the corresponding dimension groups. The set of invariants consists of two supernatural numbers and two real parameters.
Coherent Time Evolution and Boundary Conditions of Two-Photon Quantum Walks
Creators: name: Meinecke, Jasmin D. A.
name: Poulios, Konstantinos
name: Politi, Alberto
name: Matthews, Jonathan C. F.
name: Peruzzo, Alberto
name: Ismail, Nur
name: Wörhoff, Kerstin
name: O'Brien, Jeremy L.
name: Thompson, Mark G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Multi-photon quantum walks in integrated optics are an attractive controlled quantum system, that can mimic less readily accessible quantum systems and exhibit behavior that cannot in general be accurately replicated by classical light without an exponential overhead in resources. The ability to observe time evolution of such systems is important for characterising multi-particle quantum dynamics---notably this includes the effects of boundary conditions for walks in spaces of finite size. Here we demonstrate the coherent evolution of quantum walks of two indistinguishable photons using planar arrays of 21 evanescently coupled waveguides fabricated in silicon oxynitride technology. We compare three time evolutions, that follow closely a model assuming unitary evolution, corresponding to three different lengths of the array---in each case we observe quantum interference features that violate classical predictions. The longest array includes reflecting boundary conditions.
description: 7 pages,7 figures
Folded Polynomial Codes for Coded Distributed $AA^\top$-Type Matrix Multiplication
Creators: name: Xu, Jingke
name: Zhang, Yaqian
name: Wang, Libo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, due to the important value in practical applications, we consider the coded distributed matrix multiplication problem of computing $AA^\top$ in a distributed computing system with $N$ worker nodes and a master node, where the input matrices $A$ and $A^\top$ are partitioned into $m$-by-$p$ and $p$-by-$m$ blocks of equal-size sub-matrices respectively. For effective straggler mitigation, we propose a novel computation strategy, named \emph{folded polynomial code}, which is obtained by modifying the entangled polynomial codes. Moreover, we characterize a lower bound on the optimal recovery threshold among all linear computation strategies when the underlying field is the real number field, and our folded polynomial codes can achieve this bound in the case of $m=1$. Compared with all known computation strategies for coded distributed matrix multiplication, our folded polynomial codes outperform them in terms of recovery threshold, download cost, and decoding complexity.
description: This paper has been accepted in IEEE Transactions on Communications
Mesoplodon bidens
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Cetacea
Ziphiidae
Mesoplodon
Mesoplodon bidens

description: Mesoplodon bidens (Sowerby, 1804). Trans. Linn. Soc. Lond., 7:310. TYPE LOCALITY: U.K., Scotland, Elginshire, Brodie House. DISTRIBUTION: North Atlantic and Baltic Sea, temperate to subarctic waters. COMMENT: The alleged occurrence of this species in the Mediterranean Sea was discussed by P. J. H. van Bree, 1975, Ann. Mus. Civ. Stor. Nat. Genova, 80:226- 228, who considered the evidence unconvincing. PROTECTED STATUS: CITES - Appendix II as Order Cetacea. ISIS NUMBER: 5301411005004001001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Cetacea, pp. 290-304 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 300, DOI: 10.5281/zenodo.7352983
description: {"references": ["van Bree, P. J. H. 1975. On the alleged occurrence of Mesoplodon bidens (Sowerby, 1804) (Cetacea, Ziphioidae) in the Mediterranean. Annali del Museo Civico di Storia Naturale di Genova, 80: 226 - 228."]}
Obtaining a Single-Photon Weak Value from Experiments using a Strong (Many-Photon) Coherent State
Creators: name: Wiseman, Howard M.
name: Steinberg, Aephraim M.
name: Hallaji, Matin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A common type of weak-value experiment prepares a single particle in one state, weakly measures the occupation number of another state, and post-selects on finding the particle in a third state (a 'click'). Most weak-value experiments have been done with photons, but the heralded preparation of a single photon is difficult and slow of rate. Here we show that the weak value mentioned above can be measured using strong (many-photon) coherent states, while still needing only a 'click' detector such as an avalanche photodiode. One simply subtracts the no-click weak value from the click weak-value, and scales the answer by a simple function of the click probability.
description: This paper has been submitted to the Jonathan P. Dowling Memorial Special Issue of AVS QUANTUM SCIENCE (https://publishing.aip.org/publications/journals/special-topics/aqs/), and begins in a suitably reverent manner
The backward λ-Lemma and Morse filtrations
Creators: name: Weber, Joa
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: Analysis of PDEs (math.AP)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 58-02 (Primary) 58B05, 35K91 (Secondary)

description: Consider the infinite dimensional hyperbolic dynamical system provided by the (forward) heat semi-flow on the loop space of a closed Riemannian manifold M. We use the recently discovered backward λ-Lemma and elements of Conley theory to construct a Morse filtration of the loop space whose cellular filtration complex represents the Morse complex associated to the downward L2-gradient of the classical action functional. This paper is a survey. Details and proofs will be given in [6].
description: Conference proceedings, 9 pages, 5 figures. v2: typos corrected, minor modifications
Pollution et Performance économique dans les pays d'Afrique subsaharienne : le rôle modérateur de la consommation d'énergie renouvelable
Creators: name: FAYE, Adama
name: NDIAYE, Abdoulaye
Publisher: name: Zenodo
Year: 2023
Subjects: Emission CO2 ; Courbe Kuznets environnementale ; Energie renouvelable ; modèle de modération ; Performance économique.

description: Ce papier évalue la relation entre la pollution et le développement économique, en prenant en compte le rôle modérateur de la consommation d'énergie renouvelable sur un panel de 42 pays d'Afrique subsaharienne de 1990 à 2020. Les résultats obtenus à l'aide d'un modèle quadratique et d'un modèle de modération à effets fixes suggèrent que la performance économique favorise l'émission de Co2. Toutefois, l'impact de la performance économique est non linéaire sur l'émission de Co2, car il est plus modéré dans les pays caractérisés par un niveau de consommation d'énergie renouvelable élevé. La transition en énergie renouvelable est donc une solution pour garantir une économie plus propre en Afrique.
The $t$-Tone Chromatic Number of Classes of Sparse Graphs
Creators: name: Cranston, Daniel W.
name: LaFayette, Hudson
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15

description: For a graph $G$ and $t,k\in\mathbb{Z}^+$ a \emph{$t$-tone $k$-coloring} of $G$ is a function $f:V(G)\rightarrow \binom{[k]}{t}$ such that $|f(v)\cap f(w)| < d(v,w)$ for all distinct $v,w \in V(G)$. The \emph{$t$-tone chromatic number} of $G$, denoted $τ_t(G)$, is the minimum $k$ such that $G$ is $t$-tone $k$-colorable. For small values of $t$, we prove sharp or nearly sharp upper bounds on the $t$-tone chromatic number of various classes of sparse graphs. In particular, we determine $τ_2(G)$ exactly when $\textrm{mad}(G) < 12/5$ and bound $τ_2(G)$, up to a small additive constant, when $G$ is outerplanar. We also determine $τ_t(C_n)$ exactly when $t\in\{3,4,5\}$.
description: 15 pages, 6 figures, version 2 corrects a few typos
Generalized Lotka-Volterra equations with random, non-reciprocal interactions: the typical number of equilibria
Creators: name: Ros, Valentina
name: Roy, Felix
name: Biroli, Giulio
name: Bunin, Guy
name: Turner, Ari M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We compute the typical number of equilibria of the Generalized Lotka-Volterra equations describing species-rich ecosystems with random, non-reciprocal interactions using the replicated Kac-Rice method. We characterize the multiple-equilibria phase by determining the average abundance and similaritybetween equilibria as a function of their diversity (i.e. of the number of coexisting species) and of the variability of the interactions. We show that linearly unstable equilibria are dominant, and that the typical number of equilibria differs with respect to the average number.
description: v2 with minor changes
Single amplifier biquad based inductor-free Chua's circuit
Creators: name: Banerjee, Tanmoy
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The present paper reports an inductor-free realization of Chua's circuit, which is designed by suitably cascading a single amplifier biquad based active band pass filter with a Chua's diode. The system has been mathematically modeled with three-coupled first-order autonomous nonlinear differential equations. It has been shown through numerical simulations of the mathematical model and hardware experiments, that the circuit emulates the behaviors of a classical Chua's circuit, e.g., fixed point behavior, limit cycle oscillation, period doubling cascade, chaotic spiral attractors, chaotic double scrolls and boundary crisis. The occurrence of chaotic oscillation has been established through experimental power spectrum, and quantified with the dynamical measure like Lyapunov exponents.
AUTOPERCEPÇÃO DE SAÚDE E QUALIDADE DE VIDA DE ESTUDANTES DO ENSINO MÉDIO
Creators: name: Pablo Pelle Delpino
name: Marizete Arenhart Zuppa
name: Josiano Guilherme Puhle
Publisher: name: Zenodo
Year: 2023
Subjects: Expectativas. Comportamento. Saúde. Qualidade de Vida.
Expectations. Behavior. Health. Quality of Life.

description: A qualidade de vida é caracterizada pela percepção do indivíduo sobre sua vida, no contexto cultural, sistemas de valores nos quais vive, expectativas, padrões, preocupações, saúde física e mental. Objetivou-se analisar a percepção de saúde e qualidade de vida dos estudantes do ensino médio. Esta pesquisa caracteriza-se como observacional com análise descritiva e quantitativa, utilizou-se o questionário Pentáculo do Bem-Estar, de formato adaptado. Participaram desta pesquisa 35 estudantes do ensino médio de escolas públicas de São Miguel do Oeste/SC. Os resultados foram analisados em cinco blocos: Nutrição, Atividade Física, Comportamento Preventivo, Relacionamento Social e Controle de Estresse. Percebeu-se que na maioria dos blocos, os fatores de frequência raramente e quase sempre, predominam nas respostas. É possível evidenciar níveis de atividade física elevados, sendo um achado positivo para essa população, porém notam-se hábitos alimentares não adequados na maioria das respostas referente ao bloco de nutrição. Conclui-se que se faz necessário a avaliação e educação nutricional para os adolescentes em idade escolar, bem como a orientação sobre a importância da adoção de hábitos saudáveis e adequados referente à comportamentos preventivos, relacionamento social e manejo do estresse. 
description: Quality of life is characterized by the individual's perception of their life, in the cultural context, value systems in which they live, expectations, standards, concerns, physical and mental health. The objective was to analyze the perception of health and quality of life of high school students. This research is characterized as observational with descriptive and quantitative analysis, using the Pentáculo do Bem-Estar questionnaire, in an adapted format. 35 high school students from public schools in São Miguel do Oeste/SC participated in this research. The results were analyzed in five blocks: Nutrition, Physical Activity, Preventive Behavior, Social Relationships and Stress Control. It was noticed that in most blocks, frequency factors rarely, and almost always, predominate in the responses. It is possible to demonstrate high levels of physical activity, which is a positive finding for this population, but inappropriate eating habits are noted in most responses regarding the nutrition block. It is concluded that nutritional assessment and education for school-age adolescents is necessary, as well as guidance on the importance of adopting healthy and appropriate habits regarding preventive behaviors, social relationships and stress management.
Mesoplodon bowdoini Andrews 1908
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Cetacea
Ziphiidae
Mesoplodon
Mesoplodon bowdoini

description: Mesoplodon bowdoini Andrews, 1908. Bull. Am. Mus. Nat. Hist., 24:203. TYPE LOCALITY: New Zealand, Canterbury Prov., Brighton Beach. DISTRIBUTION: Temperate waters of Australia, New Zealand, and Kerguelen Isis. PROTECTED STATUS: CITES - Appendix II as Order Cetacea. ISIS NUMBER: 5301411005004002001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Cetacea, pp. 290-304 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 300, DOI: 10.5281/zenodo.7352983
Röschmann, Jakob: Vorgeschichte des Kreises Flensburg
Creators: name: Jacob-Friesen, Gernot
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Röschmann, Jakob: Vorgeschichte des Kreises Flensburg. (Die vor- und frühgeschichtlichen Denkmäler und Funde in Schleswig-Holstein, Band VI.) K. Wach- holtz Verlag, Neumünster 1963. 4°, 680 S., 153 Textabb., 152 Tfn., 2 Karten
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 33 (1964): Nachrichten aus Niedersachsens Urgeschichte
Inhaltsverzeichnis
Creators: name: Redaktion, Die
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2018

description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 43 Nr. 1 (2002): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
The Collisional Evolution of Debris Disks
Creators: name: Gaspar, Andras
name: Rieke, George H.
name: Balog, Zoltan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We explore the collisional decay of disk mass and infrared emission in debris disks. With models, we show that the rate of the decay varies throughout the evolution of the disks, increasing its rate up to a certain point, which is followed by a leveling off to a slower value. The total disk mass falls off ~ t^-0.35 at its fastest point (where t is time) for our reference model, while the dust mass and its proxy -- the infrared excess emission -- fades significantly faster (~ t^-0.8). These later level off to a decay rate of M_tot(t) ~ t^-0.08 and M_dust(t) or L_ir(t) ~ t^-0.6. This is slower than the ~ t^-1 decay given for all three system parameters by traditional analytic models. We also compile an extensive catalog of Spitzer and Herschel 24, 70, and 100 micron observations. Assuming a log-normal distribution of initial disk masses, we generate model population decay curves for the fraction of debris disk harboring stars observed at 24 micron and also model the distribution of measured excesses at the far-IR wavelengths (70-100 micron) at certain age regimes. We show general agreement at 24 micron between the decay of our numerical collisional population synthesis model and observations up to a Gyr. We associate offsets above a Gyr to stochastic events in a few select systems. We cannot fit the decay in the far infrared convincingly with grain strength properties appropriate for silicates, but those of water ice give fits more consistent with the observations.
description: 32 pages, 16 figures, emulateapj format, Accepted for publication in ApJ
The performance of large-pitch AC-LGAD with different N+ dose
Creators: name: Li, Mengzhao
name: Sun, Weiyi
name: Liang, Zhijun
name: Zhao, Mei
name: Zhang, Xiaoxu
name: Feng, Yuan
name: Fan, Yunyun
name: Wu, Tianya
name: Wang, Wei
name: Yang, Xuan
name: Liu, Bo
name: Li, Shuqi
name: Yu, Chengjun
name: Huang, Xinhui
name: Heng, Yuekun
name: Xu, Gaobo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: AC-Coupled LGAD (AC-LGAD) is a new 4D detector developed based on the Low Gain Avalanche Diode (LGAD) technology, which can accurately measure the time and spatial information of particles. The Institute of High Energy Physics (IHEP) designed a large-size AC-LGAD with a pitch of 2000~\SI{}{\micro\metre} and AC pad of 1000~\SI{}{\micro\metre}, and explored the effect of N+ layer dose on the spatial resolution and time resolution. The spatial resolution varied from 36~\SI{}{\micro\metre} to 16~\SI{}{\micro\metre} depending on N+ dose for a charge corresponding to about 12 minimum ionizing particles. The jitter component of the time resolution does not change significantly with different N+ doses, and it is about 15-17 ps measured by laser. The AC-LGAD with a low N+ dose has a large attenuation factor and better spatial resolution in the central region between pads. In these specific conditions, large signal attenuation factor and low noise level are beneficial to improve the spatial resolution of the AC-LGAD sensor.
INVESTMENT METHODS FOR INCREASING THE EFFICIENCY OF THE MANAGEMENT SYSTEM
Creators: name: Sh.Sh. Rizakulov
name: T.M. Berdiev
Publisher: name: Zenodo
Year: 2023

description: In the article, the authors discuss how people involved in the national economy, the role of investments in the economic development of the state, their theoretical foundations for the economic efficiency of investment projects, the features of methods for assessing economic efficiency, as well as the practice of calculating these methods have been studied and analyzed, as well as applicable to the conclusions given.
A Cosine Rule-Based Discrete Sectional Curvature for Graphs
Creators: name: Plessis, J. F. Du
name: Arsiwalla, Xerxes D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: How does one generalize differential geometric constructs such as curvature of a manifold to the discrete world of graphs and other combinatorial structures? This problem carries significant importance for analyzing models of discrete spacetime in quantum gravity; inferring network geometry in network science; and manifold learning in data science. The key contribution of this paper is to introduce and validate a new estimator of discrete sectional curvature for random graphs with low metric-distortion. The latter are constructed via a specific graph sprinkling method on different manifolds with constant sectional curvature. We define a notion of metric distortion, which quantifies how well the graph metric approximates the metric of the underlying manifold. We show how graph sprinkling algorithms can be refined to produce hard annulus random geometric graphs with minimal metric distortion. We construct random geometric graphs for spheres, hyperbolic and euclidean planes; upon which we validate our curvature estimator. Numerical analysis reveals that the error of the estimated curvature diminishes as the mean metric distortion goes to zero, thus demonstrating convergence of the estimate. We also perform comparisons to other existing discrete curvature measures. Finally, we demonstrate two practical applications: (i) estimation of the earth's radius using geographical data; and (ii) sectional curvature distributions of self-similar fractals.
The exact null distribution of the generalized Hollander-Proschan type test for NBUE alternatives
Creators: name: Anis, M. Z.
name: Basu, Kinjal
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62E15, 62G30, 62N05

description: In this note we derive the exact null distribution for the test statistic proposed by Anis and Mitra (2011) for testing exponentiality against NBUE alternatives. As a special case, we obtain the exact null distribution for the test statistic proposed by Hollander and Proschan (1975). Selected critical values for different size are tabulated for these two statistics. Some remarks concerning the benefits of using the exact distribution are made.
description: 9 pages, 3 Tables
Scolopostoma norah Lowry & Stoddart 2012, sp. nov.
Creators: name: Lowry, J. K.
name: Stoddart, H. E.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Conicostomatidae
Scolopostoma
Scolopostoma norah

description: Scolopostoma norah sp. nov. (Figs 11–13) Type material. HOLOTYPE,?female, 4.3 mm, AM P.68998, east of Norah Head, New South Wales, Australia, 33°20’S 151°51’E to 33°18’S 151°51’E, 134 m, trawl, 22 April 1986, FRV Kapala, stn K86-10-06. Type locality. East of Norah Head, New South Wales, Australia, 33°20’S 151°51’E to 33°18’S 151°51’E, 134 m depth. Etymology. The species is named for its type locality. Diagnosis. Gnathopod 1 carpus subtriangular. Uropod 3 without rami. Telson notched. Description. Head exposed. Body with many scattered setae; pereon and pleon without dorsal projections. Antenna 1 peduncular article 1 without distal projection; accessory flagellum 2-articulate. Mandible accessory setal row with 6 robust setae; molar absent. Maxilla 1 palp short, 1-articulate. Maxilliped inner plate subrectangular; outer plate subovate, distomedial margin serrate, without distolateral sculpturing; palp 4-articulate. Coxa 1 subquadrate ventrally. Gnathopod 1 carpus shorter than propodus, subtriangular, anterior margin produced anterodistally; dactylus regular simple. Gnathopod 2 dactylus inserted near anterodistal corner of propodus. Pereopod 7 basis, posteroventral corner rounded. Urosomite 1 with irregular subquadrate boss. Uropod 1 biramous; rami subequal in length. Uropod 2 biramous; rami subequal in length. Uropod 3 without rami. Telson hemiacetabulate, notched. Distribution. Eastern Australia, Tasman Sea; 134 m depth
description: Published as part of Lowry, J. K. & Stoddart, H. E., 2012, Australian and South African conicostomatine amphipods (Amphipoda: Lysianassoidea: Lysianassidae: Conicostomatinae subfam. nov.), pp. 43-65 in Zootaxa 3248 (1) on pages 60-63, DOI: 10.11646/zootaxa.3248.1.4, http://zenodo.org/record/5249133
Mesoplodon carlhubbsi Moore 1963
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Cetacea
Ziphiidae
Mesoplodon
Mesoplodon carlhubbsi

description: Mesoplodon carlhubbsi Moore, 1963. Am. Midi. Nat., 70:422. TYPE LOCALITY: U.S.A., California, La Jolla. DISTRIBUTION: Temperate waters of the North Pacific. COMMENT: Very closely related to bowdoini (JGM). PROTECTED STATUS: CITES - Appendix II as Order Cetacea. ISIS NUMBER: 5301411005004003001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Cetacea, pp. 290-304 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 300, DOI: 10.5281/zenodo.7352983
A novel modulated phase of liquid crystals: Covariant elasticity in the context of soft, achiral smectic-C materials
Creators: name: Venkatramanan, P. R.
name: Hatwalne, Yashodhan
name: Madhusudana, N. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Ginzburg-Landau-de Gennes -type covariant theories are extensively used in connection with twist grain boundary (TGB) phases of chiral smectogens. We analyze the stability conditions for the linear, covariant elasticity theory of smectic-C liquid crystals in the context of achiral materials, and predict an equilibrium modulated structure with an oblique wavevector. We suggest that a previous experimental observation of stripes in smectic-C is consistent with the predicted structure.
description: 4 pages, 3 figures
Short range asymptotic behavior of the wave-functions of interacting spin-half fermionic atoms with spin-orbit coupling: a model study
Creators: name: Wu, Yuxiao
name: Yu, Zhenhua
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider spin-half fermionic atoms with isotropic Rashba spin-orbit coupling in three directions. The interatomic potential is modeled by a square well potential. We derive the analytic form of the asymptotic wave-functions at short range of two fermions in the subspace of zero net momentum and zero total angular momentum. We show that the spin-orbit coupling has perturbative effects on the short range asymptotic behavior of the wave-functions away from resonances. We argue that our conclusion should hold generally.
description: Pulished version. More references added
KEY RATE CHANGE BY THE CENTRAL BANK  OF THE RUSSIAN FEDERATION. IMPACT OF THE KEY RATE ON THE ECONOMIC SPHERE
Creators: name: I.A. Fadeeva
Publisher: name: Zenodo
Year: 2023

description: This article discusses the main changes in the key rate for the last period. The Bank of Russia Board of Directors formulated the main prerequisites and reasons for its adjustment. The impact of the key rate on the ruble, monetary policy and on the economy as a whole of the country after the increase by the regulator of the Central Bank of the Russian Federation was also described. Possible forecasts of the further position of the key rate and other indicators of the economy that are associated with it have been made.
Estimation of saturation and coherence effects in the KGBJS equation - a non-linear CCFM equation
Creators: name: Deak, Michal
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We solve the modified non-linear extension of the CCFM equation - KGBJS equation - numerically for certain initial conditions and compare the resulting gluon Green functions with those obtained from solving the original CCFM equation and the BFKL and BK equations for the same initial conditions. We improve the low transversal momentum behaviour of the KGBJS equation by a small modification.
An approach to robust ICP initialization
Creators: name: Kolpakov, Alexander
name: Werman, Michael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Computational Geometry (cs.CG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this note, we propose an approach to initialize the Iterative Closest Point (ICP) algorithm to match unlabelled point clouds related by rigid transformations. The method is based on matching the ellipsoids defined by the points' covariance matrices and then testing the various principal half-axes matchings that differ by elements of a finite reflection group. We derive bounds on the robustness of our approach to noise and numerical experiments confirm our theoretical findings.
description: 9 pages, 18 figures, 1 table; GitHub repository at (https://github.com/sashakolpakov/icp-init)
Physical spectrum from confined excitations in a Yang-Mills-inspired toy model
Creators: name: Capri, M. A. L.
name: Dudal, D.
name: Guimaraes, M. S.
name: Palhares, L. F.
name: Sorella, S. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study a toy model for an interacting scalar field theory in which the fundamental excitations are confined in the sense of having unphysical, positivity-violating propagators, a fact tracing back to a decomposition of these in propagators with complex conjugate mass poles (the so-called $i$-particles). Similar two-point functions show up in certain approaches to gluon or quark propagators in Yang-Mills gauge theories. We investigate the spectrum of our model and show that suitable composite operators may be constructed having a well-defined Källén-Lehmann spectral representation, thus allowing for a particle interpretation. These physical excitations would correspond to the "mesons" of the model, the latter being bound states of two unphysical $i$-particles. The meson mass is explicitly estimated from the pole emerging in a resummed class of diagrams. The main purpose of this paper is thus to explicitly verify how a real mass pole can and does emerge out of constituent $i$-particles that have complex masses.
description: 11 pages, 6 figures; v2: minor corrections and references added, improved discussion in the introduction, to appear in IJMPA
Quantifying the influence of bars on action-based dynamical modelling of disc galaxies
Creators: name: Ghosh, Soumavo
name: Trick, Wilma H.
name: Green, Gregory M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Action-based dynamical modelling, using stars as dynamical tracers, is an excellent diagnostic to estimate the underlying axisymmetric matter distribution of the Milky Way. However, the Milky Way's bar causes non-axisymmetric resonance features in the stellar disc. Using Roadmapping (an action-based dynamical modelling framework to estimate the gravitational potential and the stellar distribution function), we systematically quantify the robustness of action-based modelling in the presence of a bar. We construct a set of test-particle simulations of barred galaxies (with varying bar properties), and apply Roadmapping to different survey volumes (with varying azimuthal position, size) drawn from these barred models. For realistic bar parameters, the global potential parameters are still recovered to within ~ 1 - 17 percent. However, with increasing bar strength, the best-fit values of the parameters progressively deviate from their true values. This happens due to a combination of radial heating, radial migration, and resonance overlap phenomena in our bar models. Furthermore, the azimuthal location and the size of the survey volumes play important roles in the successful recovery of the parameters. Survey volumes along the bar major axis produce larger (relative) errors in the best-fit parameter values. In addition, the potential parameters are better recovered for survey volumes with larger spatial coverage. As the Sun is located just ~ 28 - 33 degrees behind the bar's major axis, an estimate for the bar-induced systematic bias -- as provided by this study -- is therefore crucial for future modelling attempts of the Milky Way.
description: 18 pages, 2 tables, 11 figures (including appendix), accepted for publication in MNRAS
Random matrices with row constraints and eigenvalue distributions of graph Laplacians
Creators: name: Akara-pipattana, Pawat
name: Evnin, Oleg
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Symmetric matrices with zero row sums occur in many theoretical settings and in real-life applications. When the offdiagonal elements of such matrices are i.i.d. random variables and the matrices are large, the eigenvalue distributions converge to a peculiar universal curve $p_{\mathrm{zrs}}(λ)$ that looks like a cross between the Wigner semicircle and a Gaussian distribution. An analytic theory for this curve, originally due to Fyodorov, can be developed using supersymmetry-based techniques. We extend these derivations to the case of sparse matrices, including the important case of graph Laplacians for large random graphs with $N$ vertices of mean degree $c$. In the regime $1\ll c\ll N$, the eigenvalue distribution of the ordinary graph Laplacian (diffusion with a fixed transition rate per edge) tends to a shifted and scaled version of $p_{\mathrm{zrs}}(λ)$, centered at $c$ with width $\sim\sqrt{c}$. At smaller $c$, this curve receives corrections in powers of $1/\sqrt{c}$ accurately captured by our theory. For the normalized graph Laplacian (diffusion with a fixed transition rate per vertex), the large $c$ limit is a shifted and scaled Wigner semicircle, again with corrections captured by our analysis.
description: v3: clarifications and references added, accepted for publication in J. Phys. A
SIYOSAT NAZARIYASI  NAZARIYASI VA METODOLOGIYASI FANINING PREDMETI, MAQSADI
Creators: name: Ochilov, Jasur
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada Siyosat nazariyasi va metodologiyasi fanining predmeti ,maqsadi ,Siyosiy fan metodologiyasi va usullarining shakllanish jarayoni haqida ma'lumot berib o'tilgan.
Bilarge Neutrino Mixing and Abelian Flavor Symmetry
Creators: name: Ding, Gui-Jun
name: Morisi, S.
name: Valle, J. W. F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore two bilarge neutrino mixing anz$\ddot{a}$tze within the context of Abelian flavor symmetry theories: ($\mathrm{\tt BL_1}$) $\sinθ_{12}\simλ$, $\sinθ_{13}\simλ$, $\sinθ_{23}\simλ$, and ($\mathrm{\tt BL_2}$) $\sinθ_{12}\simλ$, $\sinθ_{13}\simλ$, $\sinθ_{23}\sim 1-λ$. The first pattern is proposed by two of us and is favored if the atmospheric mixing angle $θ_{23}$ lies in the first octant, while the second one is preferred for the second octant of $θ_{23}$. In order to reproduce the second texture, we find that the flavor symmetry should be $U(1)\times Z_m$, while for the first pattern the flavor symmetry should be extended to $U(1)\times Z_m\times Z_n$ with $m$ and $n$ of different parity. Explicit models for both mixing patterns are constructed based on the flavor symmetries $U(1)\times Z_3\times Z_4$ and $U(1)\times Z_2$. The models are extended to the quark sector within the framework of SU(5) grand unified theory in order to give a successful description of quark and lepton masses and mixing simultaneously. Phenomenological implications are discussed.
description: 23 pages, 4 figures, revised version which matches with the published one
Discrete Laplacian Thermostat for Spin Systems with Conserved Dynamics
Creators: name: Cavagna, Andrea
name: Cristín, Javier
name: Giardina, Irene
name: Veca, Mario
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A well-established numerical technique to study the dynamics of spin systems in which symmetries and conservation laws play an important role is to microcanonically integrate their reversible equations of motion, obtaining thermalization through initial conditions drawn with the canonical distribution. In order to achieve a more realistic relaxation of the magnetic energy, numerically expensive methods that explicitly couple the spins to the underlying lattice are normally employed. Here we introduce a stochastic conservative thermostat that relaxes the magnetic energy while preserving the constant of motions, thus turning microcanonical spin dynamics into a conservative canonical dynamics, without actually simulating the lattice. We test the thermostat on the Heisenberg antiferromagnet in d=3 and show that the method reproduces the exact values of the static and dynamic critical exponents, while in the low-temperature phase it yields the correct spin wave phenomenology. Finally, we demonstrate that the relaxation coefficient of the new thermostat is quantitatively connected to the microscopic parameters of the spin-lattice coupling.
description: Revised version. 30 pages, 7 figures
Achiral dielectric metasurfaces for spectral and polarization control of valley specific light emission from monolayer MoS2
Creators: name: Liu, Yin
name: Lau, Sze Cheung
name: Cheng, Wen-Hui Sophia
name: Johnson, Amalya
name: Li, Qitong
name: Simmerman, Emma
name: Karni, Ouri
name: Hu, Jack
name: Liu, Fang
name: Brongersma, Mark L.
name: Heinz, Tony F.
name: Dionne, Jennifer A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Excitons in two-dimensional transition metal dichalcogenides have a valley degree of freedom that can be optically accessed and manipulated for quantum information processing. Here, we integrate MoS2 with achiral silicon disk array metasurfaces to enhance and control valley-specific absorption and emission. Through the coupling to the metasurface Mie modes, the intensity and lifetime of the emission of neutral excitons, trions and defect bound excitons can be enhanced, while the spectral shape can be modified. Additionally, we demonstrate the symmetric enhancement of the degree-of-polarization (DOP) of neutral exciton and trions via valley-resolved PL measurements, and find that the DOP can be as high as 24% for exciton emission and 34% for trion emission at 100K. These results can be understood by analyzing the near-field impact of metasurface resonators on both the chiral absorption of MoS2 emitters as well as the enhanced emission from the Purcell effect. Combining Si-compatible photonic design with large-scale (mm-scale) 2D materials integration, our work makes an important step towards on-chip valleytronic applications approaching room-temperature operation.