cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Structural and optical studies of silver sulfide nanoparticles from silver(I) dithiocarbamate complex: molecular structure of ethylphenyl dithiocarbamato silver(I)
Creators: name: Ajibade, Peter A.
name: Nandipha L. Botha
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: We report the synthesis and crystal structure of ethylphenyl dithiocarbamato silver(I) complex. The compound crystallized as [Ag4(EtphDTC)4] in which four Ag(I) ions and four molecules of ethylphenyl dithiocarbamato ligands constitute the metal cluster in the asymmetric unit. Each ethylphenyl dithiocarbamato ligand in the cluster is bonded to three Ag(I) ions through the sulfur atoms with one sulfur covalently bonded while the other sulfur atoms act as two electrons-three centres within the metal cluster. Each Ag(I) ion is linked to three Ag(I) ions through Ag–Ag metallic bond distance of 2.9115(3) Å and 3.0376(4) Å. The complex was thermolyzed at 120, 180 and 220 °C as single source precursor to prepare silver sulfide nanoparticles. Powder XRD patterns confirmed the as-prepared silver sulfide nanoparticles as acanthite Ag1.93S irrespective of the thermolysis temperature. TEM images of the silver sulfide nanoparticles showed particle of 2.99 nm for AgS1 nanoparticles obtained at 120 °C, 6.71 nm for AgS2 obtained at 180 °C and HRTEM image of AgS3 obtained at 220 °C showed average particle size of 32.90 nm. The results showed that the particle sizes of the as-prepared silver sulfide nanoparticles increases with thermolysis temperature. The as-prepared silver sulfide nanoparticles have spherical shapes irrespective of thermolysis temperature.
Measurement of the 214Bi spectrum in the energy region around the Q-value of 76Ge neutrinoless double-beta decay
Creators: name: Klapdor-Kleingrothaus, H. V.
name: Chkvorez, O.
name: Krivosheina, I. V.
name: Tomei, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we present the results obtained measuring the 214Bi spectrum from a 226Ra source with a high purity germanium detector. Our attention was mostly focused on the energy region around the Q-value of 76Ge neutrinoless double-beta decay (2039.006 keV). The results of this measurement are strongly related to the first indication for the neutrinoless double beta decay of 76Ge, given by a recent analysis \cite{Evidence,KK02-PN,KK02-Found,KK-BigArt02} of the data collected during ten years of measurements from the HEIDELBERG-MOSCOW experiment.
description: 10 pages, latex2e, 5 figures, see also Home Page of HEIDELBERG Non-Accelerator Particle Physics Group: http://www.mpi-hd.mpg.de/non_acc/
Faraday ghosts: depolarization canals in the Galactic radio emission
Creators: name: Shukurov, Anvar
name: Berkhuijsen, Elly M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Narrow, elongated regions of very low polarized intensity -- so-called canals -- have recently been observed by several authors at decimeter wavelengths in various directions in the Milky Way, but their origin remains enigmatic. We show that the canals arise from depolarization by differential Faraday rotation in the interstellar medium and that they represent level lines of Faraday rotation measure RM, a random function of position in the sky. Statistical properties of the separation of canals depend on the autocorrelation function of RM, and so provide a useful tool for studies of interstellar turbulence.
description: 5 pages, 3 figures, accepted for publication in MNRAS Pink Pages
Joining forces to promote research transparency
Creators: name: Dekker, Harrison
name: Riegelman, Amy
name: Norm Medeiros
name: Peer, Limor
name: Arguillas, Florio
Publisher: name: Zenodo
Year: 2018

description: As stated in the "Manifesto for Reproducible Science," the overarching goal of the research transparency movement is to improve "the reliability and efficiency of scientific research" and "increase the credibility of the published scientific literature and accelerate discovery" (Munafò et al, 2017). Given the critical role that curated and shared data plays in conducting reproducible science, not to mention the training and advocacy that data professionals provide, it is clear that there is significant common ground shared by these two communities. Panelists will discuss research transparency and reproducibility by highlighting timely projects, defining the main terms (e.g., replicability, reproducibility), and sharing tools (e.g., Open Science Framework, Project Tier) that could assist in scholar workflow. Panelists represent a variety of disciplines and experience with reproducibility and will share ideas on how the various communities can best work together. Source: Marcus R. Munafò et al. "A Manifesto for Reproducible Science". Nature Human Behaviour, Vol. 1, No. 1. doi:10.1038/s41562-016-0021
Cerotainia Schiner
Creators: name: Scarbrough, Aubrey G.
name: Perez-Gelabert, Daniel E.
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Asilidae
Cerotainia

description: Cerotainia Schiner
 Cerotainia Schiner, 1866: 662 (in key), 673 (1868: 170; second erection of genus). Type species:
 Laphria xanthoptera Wiedemann (orig. des.). Hull, 1962: 394; Martin & Papavero, 1970: 52. Ceratotaenia Lynch Arribálzaga, 1880: 52, emend.
Remarks. This largely Neotropical genus is widely distributed from Connecticut and Michigan in North America southward to Argentina and Chile with 30 species. Three species are reported from the West Indies, one each from Cuba (Bromley 1929), Jamaica (Johnson 1919, Farr 1963), and Dominica (Scarbrough & Knutson 1989). The genus is distinguished by the small body, strongly divergent frons and vertex, the antenna is as long as the height of the head, scape 3–4 times as long as pedicel, and the thoracic dorsum and abdominal tergites are punctuated, and the sixth abdominal tergite is cup-shaped, concealing the terminalia. The species are usually found on the exposed, tips of branches and leaves of trees, shrubs, herbaceous plants and tall grasses.
description: Published as part of Scarbrough, Aubrey G. & Perez-Gelabert, Daniel E., 2006, A review of the asilid (Diptera) fauna from Hispaniola with six genera new to the island, fifteen new species, and checklist, pp. 1-91 in Zootaxa 1381 on page 39
A Power-Efficient Audio Acquisition System for Smart City Applications
Creators: name: Fallis, Evan
name: Spachos, Petros
name: Gregori, Stefano
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Sound (cs.SD)
subject: Social and Information Networks (cs.SI)
subject: Audio and Speech Processing (eess.AS)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Acoustic noise has adverse effects on human activities. Aside from hearing impairment and stress-related illnesses, it can also interfere with spoken communication, reduce human performance and affect the quality of life. As urbanization is intensifying, the potential benefits of reducing noise pollution in smart-city environments are extensive. Noise levels can be collected and analyzed using a wireless sensor network which can monitor the noise level by using microphones. However, every wireless system struggles in terms of the battery requirements needed for continuous data collection and monitoring. In this paper, the design of a testbed for a smart microphone system is presented. To save power, a microcontroller and an Analog-to-Digital Converter (ADC) dynamically switch between high and low power modes in response to environmental noise. Specifically, the high powered components are triggered by a spike in the acoustic noise level. Three wireless technologies, WiFi (2.4 GHz), Bluetooth Low Energy (BLE) 4.0 and Zigbee were examined. According to the results, the power consumption of a node can be lowered by 97% when idle based on the testbed.
A convenient four-component reaction for the synthesis of dithiocarbamates starting from naphthols in water
Creators: name: Foumeshi, Maryam Khalili
name: Rohollah Haghi
name: Beier, Petr
name: Halimehjani, Azim Ziyaei
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: An efficient one-pot four-component condensation of naphthols with formaldehyde, carbon disulfide and secondary amines in water is described for the synthesis of 1-(dithiocarbamatomethyl)-2-naphthols and 2-(dithiocarbamatomethyl)-1-naphthols. By using naphthalene-2,3-diol in this protocol, the corresponding bis(dithiocarbamates) were obtained in high yields via a one-pot pseudo seven-component reaction. The reaction is characterized by a wide substrate scope, high efficiency, green solvent, catalyst-free conditions and straightforward isolation protocol. Employing this newly developed multicomponent reaction enabled the synthesis of 26 dithiocarbamates.
Boosting Deep Open World Recognition by Clustering
Creators: name: Fontanel, Dario
name: Cermelli, Fabio
name: Mancini, Massimiliano
name: Bulò, Samuel Rota
name: Ricci, Elisa
name: Caputo, Barbara
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: While convolutional neural networks have brought significant advances in robot vision, their ability is often limited to closed world scenarios, where the number of semantic concepts to be recognized is determined by the available training set. Since it is practically impossible to capture all possible semantic concepts present in the real world in a single training set, we need to break the closed world assumption, equipping our robot with the capability to act in an open world. To provide such ability, a robot vision system should be able to (i) identify whether an instance does not belong to the set of known categories (i.e. open set recognition), and (ii) extend its knowledge to learn new classes over time (i.e. incremental learning). In this work, we show how we can boost the performance of deep open world recognition algorithms by means of a new loss formulation enforcing a global to local clustering of class-specific features. In particular, a first loss term, i.e. global clustering, forces the network to map samples closer to the class centroid they belong to while the second one, local clustering, shapes the representation space in such a way that samples of the same class get closer in the representation space while pushing away neighbours belonging to other classes. Moreover, we propose a strategy to learn class-specific rejection thresholds, instead of heuristically estimating a single global threshold, as in previous works. Experiments on RGB-D Object and Core50 datasets show the effectiveness of our approach.
description: IROS/RAL 2020
Eumecosoma Schiner 1866
Creators: name: Scarbrough, Aubrey G.
name: Perez-Gelabert, Daniel E.
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Asilidae
Eumecosoma

description: Eumecosoma Schiner
 Eumecosoma Schiner, 1866: 673. Type species: Laphria pleuritica Wiedemann, 1828, by original designation. Hull, 1962: 379; Martin & Papavero, 1970: 49.
Remarks. This Neotropical genus consists of 11 species described from southern Mexico to southern Brazil. These small dark flies have a slightly diverging vertex, the elongated, oval flagellum has an acute apex and a preapical spine. The abdomens are smooth or minutely punctuate with 7 exposed tergites in the male, 8 in females. In males, the seventh tergite is about 1/2 as long and wide as the sixth, and the terminalia are exposed. Species usually perch on the tops of leaves in shadows of small sunlit spots of nearly mature forests (Fisher and Hespenheide, 1992; Fisher, in press). Here we report the first record of the genus from the West Indies.
description: Published as part of Scarbrough, Aubrey G. & Perez-Gelabert, Daniel E., 2006, A review of the asilid (Diptera) fauna from Hispaniola with six genera new to the island, fifteen new species, and checklist, pp. 1-91 in Zootaxa 1381 on page 42
Are China’s Agricultural Commodity Prices Affected by Global Energy Shocks? Copula-based Extreme Market Dependence Analysis
Creators: name: Tong, Qingmeng
name: Qiu, Feng
name: Zhang, Junbiao
name: Tong, Qingmeng
name: Qiu, Feng
name: Zhang, Junbiao
Publisher: name: Unknown
Year: 2019
Subjects: Demand and Price Analysis

description: Presentation ID 15657
Kubo-Anderson theory of polariton line shape
Creators: name: Clàudia Climent
name: Joseph E. Subotnik
name: Abraham Nitzan
Publisher: name: Zenodo
Year: 2024

description: We apply the Kubo-Anderson stochastic theory of molecular spectral lineshapes to the case of polaritons formed in the collective strong coupling regime. We investigate both the fast and slow limits of the random frequency modulation of the emitter as well as the intermediate regime and show how the interplay between the characteristic timescales of the cavity and the molecular disorder is expressed in the observed polaritons lineshapes. The analytical solution obtained for the slow limit is valid for any ratio between the inhomogeneous broadening of the molecules and the Rabi splitting, which is especially relevant for molecular polaritons where these two quantities can be of the same order of magnitude.
description: This article appeared in Phys. Rev. A 109, 052809 (2024) and may be found at https://doi.org/10.1103/PhysRevA.109.052809
description: Accepted manuscript
Velocity Fluctuations in Dynamical Fracture: the Role of Microcracks
Creators: name: Bouchbinder, E.
name: Kessler, D.
name: Procaccia, I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We address the velocity fluctuations of fastly moving cracks in stressed materials. One possible mechanism for such fluctuations is the interaction of the main crack with micro cracks (irrespective whether these are existing material defects or they form during the crack evolution). We analyze carefully the dynamics (in 2 space dimensions) of one macro and one micro crack, and demonstrate that their interaction results in a {\em large} and {\em rapid} velocity fluctuation, in qualitative correspondence with typical velocity fluctuations observed in experiments. In developing the theory of the dynamical interaction we invoke an approximation that affords a reduction in mathematical complexity to a simple set of ordinary differential equations for the positions of the cracks tips; we propose that this kind of approximation has a range of usefulness that exceeds the present context.
description: 7 pages, 7 figures
Nonautonomous symmetries of the KdV equation and step-like solutions
Creators: name: Adler, V. E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35Q53, 35G25, 35C06, 37B55, 34M55

description: We study solutions of the KdV equation governed by a stationary equation for symmetries from the non-commutative subalgebra, namely, for a linear combination of the master-symmetry and the scaling symmetry. The constraint under study is equivalent to a sixth order nonautonomous ODE possessing two first integrals. Its generic solutions have a singularity on the line $t=0$. The regularity condition selects a 3-parameter family of solutions which describe oscillations near $u=1$ and satisfy, for $t=0$, an equation equivalent to degenerate $P_5$ equation. Numerical experiments show that in this family one can distinguish a two-parameter subfamily of separatrix step-like solutions with power-law approach to different constants for $x\to\pm\infty$. This gives an example of exact solution for the Gurevich--Pitaevskii problem on decay of the initial discontinuity.
description: 15, 8 figures
A grassroots approach to building a holistic service model at a liberal arts institution
Creators: name: Guss, Samantha
name: Brazell, Ryan
name: Bell, Andrew
Publisher: name: Zenodo
Year: 2018

description: A recent series of brainstorming conversations between the IT, library, and academic technology units made visible a lack of coordination in how the University of Richmond (Virginia, USA) provides data-related support services to students. In response, a group of staff representing all three units, drawing on an existing community of practice, came together to imagine and operationalize a flexible, holistic service model that could be implemented from the ground up. Our new service model is meant to respond to the growing number of interdisciplinary programs on our campus and a disconnect between students' actual data literacy and their instructors' expectations. It serves dual purposes: provide a single point of entry for students needing data-related support (which is currently haphazard and unsustainable), and develop new and strengthen existing behind-the-scenes connections. In our presentation, we will focus on our approach, goals, and challenges encountered in building this model for a liberal arts institution.
Supplementary materials_Cerniglia_NCTR.docx
Creators: name: , Kweon
name: Cerniglia, Carl E
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: C. difficile strains used in the study and a list of qPCR primers and probes for toxin A (tcdA) and B (tcdB) genes.
Order Batching and Picker Scheduling in Warehouse Order Picking
Creators: name: İbrahim Muter
name: Öncan, Temel
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: This paper focuses on the integration of order batching and picker scheduling decisions while taking into account two objectives that have been considered in the literature, namely the minimization of both total travel time to collect all items and makespan of the pickers. This integrated problem not only occurs naturally in wave picking systems in which the latest picking time of orders becomes the key performance metric, but also arises when there is a limit on the picker operating time. We present models that result from combining these objectives and analyze their relationship through bounds. We propose a column generation based exact algorithm for the integrated problem. The novelty of the proposed approach lies in the ability of efficiently solving the integrated order batching and picker scheduling problem to optimality by designing a column generation subproblem based on the set of batches, which makes it a challenging optimization problem due to its size. We alleviate this difficulty by reformulating this subproblem, which allows efficient implicit enumeration of its variables. We have also devised a Variable Neighborhood Search algorithm used as a subprocedure within the proposed exact solution algorithm. Finally, we conduct experiments on randomly generated instances and show that the proposed algorithms are capable of solving instances with up to 100 orders.
Resonances, and mechanisms of Theta-production
Creators: name: Azimov, Ya. I.
name: Strakovsky, I. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: After explaining necessity of exotic hadrons, we discuss mechanisms which could determine production of the exotic Theta-baryon. A possible important role of resonances (producing the Theta in real or virtual decays) is emphasized for various processes. Several experimental directions for studies of such resonances, and the Theta itself, are suggested. We briefly discuss also recent negative results on the Theta-baryon.
description: 6 pages
Feeding of active galactic nuclei by dynamical perturbations
Creators: name: Tartėnas, M.
name: Zubovas, K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: There possibly was an AGN episode in the Galactic Centre about 6 Myr ago, powerful enough to produce the Fermi bubbles. We present numerical simulations of a possible scenario giving rise to an activity episode: a collision between a central gas ring surrounding the supermassive black hole (SMBH) and an infalling molecular cloud. We investigate different initial collision angles between the cloud and the ring. We follow the hydrodynamical evolution of the system following the collision using Gadget-3 hybrid N-body/SPH code and calculate the feeding rate of the SMBH accretion disc. This rate is then used as an input for a 1D thin $α$-disc model in order to calculate the AGN luminosity. By varying the disc feeding radii we determine the limiting values for possible AGN accretion disc luminosity. Small angle collisions do not result in significant mass transport to the centre of the system, while models with highest collision angles transport close to $40\%$ of the initial matter to the accretion disc. Even with ring and cloud masses equal to $10^4 \, M_\odot$, which is the lower limit of present-day mass of the Circumnuclear ring in the Galactic Centre, the energy released over an interval of 1.5 Myr can produce $\sim 10\%$ of that required to inflate the Fermi bubbles. If the gas ring in the Galactic Centre 6 Myr ago had a mass of at least $10^5 \, M_\odot$, our proposed scenario can explain the formation of the Fermi bubbles. We estimate that such high-impact collisions might occur once every $\sim 10^8$ yr in our Galaxy.
description: 13 pages, 14 figures, accepted for publication in MNRAS
Responsive Parenting Buffers the Impact of Maternal PTSD on Young Children
Creators: name: Greene, Carolyn A.
name: McCarthy, Kimberly J.
name: Estabrook, Ryne
name: Wakschlag, Lauren S.
name: Briggs-Gowan, Margaret J.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology

description: Objective. This study investigates maternal responsive parenting behaviors as a theorized buffer to the detrimental impact of maternal PTSD symptoms on young children’s depression and anxiety symptoms, disruptive behavior, and stress-related symptoms. Design. A multi-ethnic sample of 242 trauma-exposed mothers and their preschool-aged children was assessed. Maternal responsive parenting behaviors were observed during standardized parent-child interactions. Maternal and child mental health symptoms were reported by mothers. Results. Maternal PTSD symptoms were associated with their responsive parenting behaviors and predicted children’s mental health symptoms. Responsive parenting was inversely associated with children’s depression and stress-related symptoms. Moderation analyses revealed an interactive effect of maternal symptoms and responsive parenting on preschool children’s disruptive behavior and stress-related symptoms. Conclusions. Responsive parenting behaviors can mitigate the ill effects of maternal PTSD symptoms. Nurturing relationships buffer the impact of maternal PTSD. Helping parents’ to sensitively respond to their young children’s distress can support positive outcomes in children.
Safe Vegetable Marketing and Agricultural Cooperatives in Hanoi
Creators: name: Takanashi, Fumie
name: Takanashi, Fumie
Publisher: name: Unknown
Year: 2011
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Vietnam
subject: agricultural cooperative
subject: safe vegetable
subject: organizational structure

description: The aim of this paper was to examine the organizational changings of agricultural cooperatives in Vietnam under market economy. 3 safe vegetable cooperatives which were differing in establishing background and process, means transformed one, re-established one after cooperative low, and newly established one, were selected as sample and the difference of function in marketing and organizational structure were compered. Results showed that each cooperative had different function in safe vegetable marketing. Transformed cooperative outsourced the marketing and distribution work to another company by contract, re-established cooperative focused its activities to production for conclusive transactions with its client. And newly established cooperative officially had marketing division however the income from this division was not collected to the administration. The activities of cooperative were also changing from farmer’s support to commercial business beside. In parallel, the organizational structure of cooperative is changing from traditional community based to market oriented. The way of benefit allocation, decision making, characteristic of members are changing along establishing of cooperative process. In the future, the organization models of agricultural cooperative will be varied. We need to think what will be the effective organization for farmers who need self-help organization under rapid economic development, based on the consideration of historical process and position of agricultural cooperative in agricultural policy in Vietnam.
Dynamic state reconstruction of quantum systems subject to pure decoherence
Creators: name: Czerwinski, Artur
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The article introduces efficient quantum state tomography schemes for qutrits and entangled qubits subject to pure decoherence. We implement the dynamic state reconstruction method for open systems sent through phase-damping channels which was proposed in: Open Syst. Inf. Dyn. 23, 1650019 (2016). In the current article we prove that two distinct observables measured at four different time instants suffice to reconstruct the initial density matrix of a qutrit with evolution given by a phase-damping channel. Furthermore, we generalize the approach in order to determine the optimal criteria for quantum tomography of entangled qubits. Finally, we prove two universal theorems concerning the minimal number of distinct observables required for quantum tomography of qudits. We believe that dynamic state reconstruction schemes bring significant advancement and novelty to quantum tomography since they allow to reduce the number of distinct measurements required to solve the problem, which is important from the experimental point of view.
Confinement in the 3-dimensional Gross-Neveu model
Creators: name: Malbouisson, A. P. C.
name: Malbouisson, J. M. C.
name: Santana, A. E.
name: da Silva, J. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the $N$-components 3-dimensional massive Gross-Neveu model compactified in one spatial direction, the system being constrained to a slab of thickness $L$. We derive a closed formula for the effective renormalized $L$-dependent coupling constant in the large-N limit, using bag-model boundary conditions. For values of the fixed coupling constant in absence of boundaries $λ\geq λ_c \simeq 19.16$, we obtain ultra-violet asymptotic freedom (for $L \to 0$) and confinement for a length $L^{(c)}$ such that $2.07 m^{-1} < L^{(c)} \lesssim 2.82 m^{-1}$, $m$ being the fermionic mass. Taking for $m$ an average of the masses of the quarks composing the proton, we obtain a confining legth $L^{(c)}_p$ which is comparable with an estimated proton diameter.
description: Latex, 4 pages, 2 figures (one new), some changes in text
Neighbouring with Messy Landscapes : Examining the Appreciation Towards Biodiverse Landscapes in Vancouver
Creators: name: Zhan, Suzy
Publisher: name: The University of British Columbia
Year: 2023

description: I would like to reflect on the significance of acknowledging the traditional and unceded territory of the Musqueam First Nation. It’s important to consider our relationship with the land and how we interact with it. The choices we make about our urban landscapes are far from arbitrary. Instead, they reflect larger cultural, ecological, and social forces that shape our relationship with the natural world around us. By considering the plantings we see every day, we can begin to unravel the complex layers of meaning and intention that underpin these seemingly simple decisions. Public preference for neat and orderly landscapes, influenced by the Picturesque landscape in the 18th century, puts pressure on maintenance and creates resistance to biodiverse designs in public spaces, despite the growing awareness of the importance of healthy and resilient green spaces. This cultural practice, although well-intended, often creates a static landscape that neglects thedynamic ecological processes within. My thesis project is a journey of exploring a biodiverse boulevard running through the neighborhood that serves as a tangible reminder of our interconnectedness with the natural world. It provides a space for us to reconnect with the rhythms of the earth, fostering a sense of rootedness and belonging both ecologically and culturally.
A tale of three data portals: Open government data in U.S. states
Creators: name: Paige, Bonnie
Publisher: name: Zenodo
Year: 2018

description: Open government data has been studied at the national and municipal levels, but there has been little previous study of open government data initiatives in U.S. states. In this presentation, the open data sites of three northern New England states (Maine, New Hampshire and Vermont) are considered as case studies to explore the successes and problems present in many state-level open government data initiatives. The investigation focuses on whether the legal context of the state encourages proactive release of data in a reusable format, whether the data provided is sufficient in scope and format to support the sites' stated goals, and whether there is an observable political influence on state-level open data. This preliminary study suggests areas of future research for state open government data. Librarians and other information specialists may be able to contribute to state open data initiatives by using their expertise in knowledge organization and information literacy to enhance the existing sites.
Direct electrical access to the spin manifolds of individual monovalent lanthanide atoms
Creators: name: Czap, Gregory
name: Noh, Kyungju
name: Velasco, Jairo
name: Macfarlane, Roger M.
name: Brune, Harald
name: Lutz, Christopher P.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Lanthanide atoms show long magnetic lifetimes because of their strongly localized 4f electrons, but electrical control of their spins has been difficult because of their closed valence shell configurations. We achieved electron spin resonance of individual lanthanide atoms using a scanning tunneling microscope to probe the atoms bound to a protective insulating film. These atoms were prepared in the monovalent state with an unpaired 6s electron, enabling tunnel current to access their 4f electrons. Europium spectra display a rich array of transitions among the 54 combined electron and nuclear spin states. In contrast, samarium's ground state is a Kramers doublet with an extraordinarily large g-factor of nearly 5. These results demonstrate that all-electronic sensing and control of individual lanthanide spins is possible for quantum devices and spin-based electronics by using their rarely-observed monovalent cation state.
description: 63 pages, 5 main text figures, 15 supplementary information figures
Powers of the Euler product and commutative subalgebras of a complex simple Lie algebra
Creators: name: Kostant, Bertram
Publisher: name: arXiv
Year: 2003
Subjects: subject: Group Theory (math.GR)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 22E46; 22E65; 22E67; 22E70; 11Fxx; 11F20; 11Cxx; 17Bxx

description: If $\frak g$ is a complex simple Lie algebra, and $k$ does not exceed the dual Coxeter number of $\frak g$, then the k$^{th}$ coefficient of the $dim \frak g$ power of the Euler product may be given by the dimension of a subspace of $\wedge^k\frak g$ defined by all abelian subalgebras of $\frak g$ of dimension $k$. This has implications for all the coefficients of all the powers of the Euler product. Involved in the main results are Dale Peterson's $2^{rank}$ theorem on the number of abelian ideals in a Borel subalgebra of $\frak g$, an element of type $ρ$ and my heat kernel formulation of Macdonald's $η$-function theorem, a set $D_{alcove}$ of special highest weights parameterized by all the alcoves in a Weyl chamber (generalizing Young diagrams of null $m$-core when $\frak g= Lie Sl(m,\Bbb C)$), and the homology and cohomology of the nil radical of the standard maximal parabolic subalgebra of the affine Kac-Moody Lie algebra.
description: 44 pages, plain tex
Data archiving for dissemination within a Gulf nation
Creators: name: Mandikiana, Brian
name: Timms-Ferrara, Lois
name: Maynard, Marc
name: Howell, David
Publisher: name: Zenodo
Year: 2018

description: Since 2008, Qatar University's Social and Economic Survey Research Institute (SESRI), has been collecting nationally representative survey data on social and economic issues. In 2017, SESRI leadership established an archiving unit tasked with data preservation and dissemination both for internal purposes and with the intent of disseminating select data to the public for secondary analysis. This paper reviews the lessons learned from creating a data archive in an emerging economy where both cultural and political sensitivities exist amid varied groups of stakeholders. Challenges have included recruiting trained personnel, developing policies for data selection and workflow objectives, processing restricted and non-restricted datasets and metadata, data security issues, and promoting usage. Additionally, there is hope that the presence of the archiving unit adds value for other SESRI research staff involved in the design, collection, documentation, and processing of studies. After successfully addressing these challenges over the past year, the Archive met its objective to launch a data center at the institute's website (http://sesri.qu.edu.qa) and to make multiple datasets available for public download from it. Also to be discussed are the tools, processes, and leveraging of resources that are being implemented as the archiving process continues to evolve.
On the inverse mapping of the formal symplectic groupoid of a deformation quantization
Creators: name: Karabegov, Alexander V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 53D55

description: To each natural star product on a Poisson manifold $M$ we associate an antisymplectic involutive automorphism of the formal neighborhood of the zero section of the cotangent bundle of $M$. If $M$ is symplectic, this mapping is shown to be the inverse mapping of the formal symplectic groupoid of the star product. The construction of the inverse mapping involves modular automorphisms of the star product.
description: 14 pages, latex
Rhopalogaster Macquart 1834
Creators: name: Scarbrough, Aubrey G.
name: Perez-Gelabert, Daniel E.
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Asilidae
Rhopalogaster

description: Rhopalogaster Macquart
 Rhopalogaster Macquart 1834: 279. Hull, 1962: 338; Martin & Papavero, 1970: 40.
Remarks. This Neotropical genus consists of only 7 species, one of which is reported from Cuba. Here we report the genus and a new species from the Dominican Republic for the first time. The genus is distinguished by its size (15–20 mm) laterally flat proboscis, short pile, greatly reduced bristles, strongly constricted abdomen, and very long antenna. The scape is usually 10 times as long as the pedicel, and the flagellum is 1.2–2 times the length of the scape and pedicel combined (Hull, 1962). Species inhabit mature forest below 1500 meters, perching on shaded dead and live tree trunks (Fisher and Hespenheide, 1992; Fisher, in press).
description: Published as part of Scarbrough, Aubrey G. & Perez-Gelabert, Daniel E., 2006, A review of the asilid (Diptera) fauna from Hispaniola with six genera new to the island, fifteen new species, and checklist, pp. 1-91 in Zootaxa 1381 on page 44
Efficient Intrinsically Motivated Robotic Grasping with Learning-Adaptive Imagination in Latent Space
Creators: name: Hafez, Muhammad Burhan
name: Weber, Cornelius
name: Kerzel, Matthias
name: Wermter, Stefan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Robotics (cs.RO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Combining model-based and model-free deep reinforcement learning has shown great promise for improving sample efficiency on complex control tasks while still retaining high performance. Incorporating imagination is a recent effort in this direction inspired by human mental simulation of motor behavior. We propose a learning-adaptive imagination approach which, unlike previous approaches, takes into account the reliability of the learned dynamics model used for imagining the future. Our approach learns an ensemble of disjoint local dynamics models in latent space and derives an intrinsic reward based on learning progress, motivating the controller to take actions leading to data that improves the models. The learned models are used to generate imagined experiences, augmenting the training set of real experiences. We evaluate our approach on learning vision-based robotic grasping and show that it significantly improves sample efficiency and achieves near-optimal performance in a sparse reward environment.
description: In: Proceedings of the Joint IEEE International Conference on Development and Learning and on Epigenetic Robotics (ICDL-EpiRob), Oslo, Norway, Aug. 19-22, 2019
Convergence Properties of Iteratively Coupled Surface-Subsurface Models
Creators: name: Schüller, Valentina
name: Birken, Philipp
name: Dedner, Andreas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: G.1.8
subject: 65M22

description: Surface-subsurface flow models for hydrological applications solve a coupled multiphysics problem. This usually consists of some form of the Richards and shallow water equations. A typical setup couples these two nonlinear partial differential equations in a partitioned approach via boundary conditions. Full interaction between the subsolvers is ensured by an iterative coupling procedure. This can be accelerated using relaxation.
 In this paper, we apply continuous and fully discrete linear analysis techniques to study an idealized, linear, 1D-0D version of a surface-subsurface model. These result in explicit expressions for the convergence factor and an optimal relaxation parameter, depending on material and discretization parameters. We test our analysis results numerically for fully nonlinear 2D-1D experiments based on existing benchmark problems. The linear analysis can explain fast convergence of iterations observed in practice for different materials and test cases, even though we are not able to capture various nonlinear effects.
description: 29 pages, 10 figures
Enabling cross-search across social science data archives in Japan - Initiative as part of national endeavor to establish open science infrastructure
Creators: name: Funamori, Miho
name: Hayashi, Masaharu
name: Kazutsuna Yamaji
name: Asaoka, Makoto
name: Maeda, Yutaka
name: Miwa, Satoshi
Publisher: name: Zenodo
Year: 2018

description: It has been an issue in Japan that the several social science data archives existing have been started by different research groups and thus are not cross-searchable. This also means the archives suffer from extinction when the faculty in charge retires. If these archives could be integrated to form a scholarly base in Japan, it would advance the scholarship of Japanese social science community and enable long-term sustainability to those datasets in the archives. Integrating data archives has not been possible because of the independent nature and also the limited resources of each archive. However, this could change with the latest national provision of Open Science infrastructure. Japan's national academic service institution—National Institute of Informatics—currently provides discovery service and institutional repository cloud service mainly for research publications, which will now be enhanced to accommodate research data, as well. If the datasets or at least the metadata of the social science data archives in Japan could be integrated into this infrastructure, it would solve the issues raised above. This presentation will elaborate on the idea and challenges to establish a cross-searchable social science data archive in Japan.
Approximation of the Axisymmetric Elasticity Equations with Weak Symmetry
Creators: name: Bentley, Alistair
name: Ervin, V. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35Q72, 65N30, 65N12

description: In this article we consider the linear elasticity problem in an axisymmetric three dimensional domain, with data which are axisymmetric and have zero angular component. The weak formulation of the the three dimensional problem reduces to a two dimensional problem on the meridian domain, involving weighted integrals. The problem is formulated in a mixed method framework with both the stress and displacement treated as unknowns. The symmetry condition for the stress tensor is weakly imposed. Well posedness of the continuous weak formulation and its discretization are shown. Two approximation spaces are discussed and corresponding numerical computations presented.
Synthesis of poly-substituted thiophenes in the realm of sulfonylketenimines chemistry
Creators: name: Saeedeh Saeedi
name: Sedaghat, Anna
name: Nematpour, Manijeh
name: Jahani, Mehdi
name: Sayyed Abbas Tabatabai
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: An efficient synthesis of highly substituted thiophenes was developed by means of sulfonylketenimines in a multi-step reaction including heterocumulene system containing sulfur and nitro-alkanes with acidic α-hydrogen. The speed and ease of conducting this four-component reaction under mild conditions and using available materials makes it an ideal method to synthesize high purity substituted thiophenes with sulfonamide moiety. All structures synthesized are confirmed by the instrumental analysis (EI-MS, IR and 1H /13C-NMR).
Luminosity and Stellar Mass Functions of Local Star-Forming Galaxies
Creators: name: Perez-Gonzalez, P. G.
name: Gallego, J.
name: Zamorano, J.
name: Alonso-Herrero, A.
name: de Paz, A. Gil
name: Aragon-Salamanca, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the optical and near-infrared luminosity and mass functions of the local star-forming galaxies in the Universidad Complutense de Madrid Survey. A bivariate method which explicitly deals with the Halpha selection of the survey is used when estimating these functions. Total stellar masses have been calculated on a galaxy-by-galaxy basis taking into account differences in star formation histories. The main difference between the luminosity distributions of the UCM sample and the luminosity functions of the local galaxy population is a lower normalization (phi^*), indicating a lower global volume density of UCM galaxies. The typical near-infrared luminosity (L^*) of local star-forming galaxies is fainter than that of normal galaxies. This is a direct consequence of the lower stellar masses of our objects. However, at optical wavelengths (B and r) the luminosity enhancement arising from the young stars leads to M^* values that are similar to those of normal galaxies. The fraction of the total optical and near infrared luminosity density in the local Universe associated with star-forming galaxies is 10-20%. Fitting the total stellar mass function using a Schechter parametrization we obtain alpha=-1.15+/-0.15, log({M}^*)=10.82+/-0.17 Msun and log(phi^*)=-3.04+/-0.20 Mpc^{-3}. This gives an integrated total stellar mass density of 10^{7.83+/-0.07} Msun Mpc^{-3} in local star-forming galaxies (H_0=70 km s^{-1} Mpc^{-1}, Omega_M=0.3, Lambda=0.7). The volume-averaged burst strength of the UCM galaxies is b=0.04+/-0.01, defined as the ratio of the mass density of stars formed in recent bursts (age<10 Myr) to the total stellar mass density in UCM galaxies. Finally, we derive that, in the local Universe, (13+/-3)% of the total baryon mass density in the form of stars is associated with star-forming galaxies.
description: 12 pages, 2 PostScript figures, published in ApJL. Minor changes to match the published version