cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The 1000 Brightest HIPASS Galaxies: Newly Cataloged Galaxies
Creators: name: Ryan-Weber, E.
name: Koribalski, B. S.
name: Staveley-Smith, L.
name: Jerjen, H.
name: Kraan-Korteweg, R. C.
name: Ryder, S. D.
name: Barnes, D. G.
name: de Blok, W. J. G.
name: Kilborn, V. A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The HI Parkes All-Sky Survey (HIPASS) is a blind 21-cm survey for extragalactic neutral hydrogen, covering the whole southern sky. The HIPASS Bright Galaxy Catalog (BGC; Koribalski et al. 2002) is a subset of HIPASS and contains the 1000 HI-brightest (peak flux density) galaxies. Here we present the 138 HIPASS BGC galaxies, which had no redshift measured prior to the Parkes multibeam HI surveys. Of the 138 galaxies, 87 are newly cataloged. Newly cataloged is defined as no optical (or infrared) counterpart in the NASA/IPAC Extragalactic Database. Using the Digitized Sky Survey we identify optical counterparts for almost half of the newly cataloged galaxies, which are typically of irregular or magellanic morphological type. Several HI sources appear to be associated with compact groups or pairs of galaxies rather than an individual galaxy. The majority (57) of the newly cataloged galaxies lie within ten degrees of the Galactic Plane and are missing from optical surveys due to confusion with stars or dust extinction. This sample also includes newly cataloged galaxies first discovered in the HI shallow survey of the Zone-of-Avoidance (Henning et al. 2000). The other 30 newly cataloged galaxies escaped detection due to their low surface brightness or optical compactness. Only one of these, HIPASS J0546-68, has no obvious optical counterpart as it is obscured by the Large Magellanic Cloud. We find that the newly cataloged galaxies with |b| > 10 are generally lower in HI mass and narrower in velocity width compared with the total HIPASS BGC. In contrast, newly cataloged galaxies behind the Milky Way are found to be statistically similar to the entire HIPASS BGC. In addition to these galaxies, the HIPASS BGC contains four previously unknown HI clouds.
description: 39 pages including 14 figures, to appear in the Oct 2002 issue of AJ
Analysis of NonMagnetic Spring Plate
Creators: name: KM Galib, Subrato Roy, Md Faiaz Arman Talukdar Tonmoy
Publisher: name: Zenodo
Year: 2025

description: A nonlinear spring plate is a complex formed geometry, which acts as a momentary contact switch by snap through behavior. Nonlinear spring plates have a large number of applications in the medical, military, aviation and electronics industries. Spring plates are normally manufactured from 301 stainless steel. Since spring plates made of such materials could alter their behavior in a magnetic environment, nonmagnetic materials have been studied in this work as a potential candidate for nonlinear spring plates operating in magnetic conditions. Upon analyzing the magnetic properties of several materials, it was found that grade 5titanium alloy and aluminum bronze are potential candidates to replace the magnetic material of nonlinear spring plates. Observing the force-displacement curves it was found that titanium alloy has the lowest trip force compared to other materials. However, fatigue analysis of the spring plates revealed that titanium alloy has the lowest life cycle compared to other materials, which agrees with the testing performed by the manufacturer. Finite element analysis has been performed to investigate the lower life cycle of titanium alloy spring plates
Modelling dry granular flows over topography
Creators: name: Tsang, Jonathan Michael Foonlan
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: granular flows
granular materials
rheology
boundary layers
fluid dynamics
fluid mechanics
granular mechanics
mathematical physics

description: Dry granular flows are common and important in the environment and industry, and yet their behaviour is very poorly understood. The dynamics of individual grains are governed by the simple and well-known laws of Newtonian mechanics, but how do these 'microscopic' particle-level laws translate into the 'macroscopic' collective motion of thousands or millions of grains, which flow like a liquid? Various rheological models of granular flows have been developed to facilitate a continuum approach, but hitherto they have only been applied to flows in very simple geometries such as parallel shear flow. In these applications, the flows are assumed to be quasi-steady and to vary only over very long distances in the streamwise direction. This approximation, related to the 'shallow water' model of hydraulics, greatly simplifies the equations of motion. However, the assumption is inappropriate for modelling flows interacting with basal features that vary over lengthscales comparable to the depth of the current, or for flows with abrupt time-dependence that cannot be assumed to be quasi-steady. We refer to these spatial and temporal inhomogeneities collectively as topography. In this thesis, we apply a common rheological model to problems involving various types of spatial or temporal topography. One problem that we shall particularly study concerns a flow down a chute that experiences a sudden increase in basal roughness, either spatially or in time. This change induces an evolution of the depthwise velocity profile that begins near the base but eventually spreads throughout the current. We introduce an adaptation of the $\mu(I)$ rheology and find the velocity profile that this rheological model predicts, using a technique similar to the Blasius boundary layer theory for Newtonian fluids flowing past an aerofoil. We validate the predictions of the rheological model by comparing them against the results of discrete particle model (DPM) simulations. We review existing techniques for DPM, and present a number of novel ways of employing these techniques. These methods allow us to reduce the computational cost of simulations while maintaining their realism. The internal profile of a granular flow, and its response to a change in basal conditions, are difficult to observe in experiments or in real life, since grains are opaque. However, the models studied here can help to make predictions about the depth and speed of the flows, or conversely to make inferences about the nature of the base, given measurements on the surface of the flow.
description: EPSRC Studentship
Organ-based Chronological Age Estimation based on 3D MRI Scans
Creators: name: Armanious, Karim
name: Abdulatif, Sherif
name: Bhaktharaguttu, Anish Rao
name: Küstner, Thomas
name: Hepp, Tobias
name: Gatidis, Sergios
name: Yang, Bin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Individuals age differently depending on a multitude of different factors such as lifestyle, medical history and genetics. Often, the global chronological age is not indicative of the true ageing process. An organ-based age estimation would yield a more accurate health state assessment. In this work, we propose a new deep learning architecture for organ-based age estimation based on magnetic resonance images (MRI). The proposed network is a 3D convolutional neural network (CNN) with increased depth and width made possible by the hybrid utilization of inception and fire modules. We apply the proposed framework for the tasks of brain and knee age estimation. Quantitative comparisons against concurrent MR-based regression networks and different 2D and 3D data feeding strategies illustrated the superior performance of the proposed work.
description: Submitted to IEEE EUSIPCO 2020
Time Dependence of the Ultraviolet Radiation Field in the Local Interstellar Medium
Creators: name: Parravano, Antonio
name: Hollenbach, David J.
name: McKee, Christopher F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Far Ultraviolet radiation has been recognized as the main source of heating of the neutral interstellar gas, and, as a consequence, it determines whether the thermal balance of the neutral gas results in cold ($T\sim 50 - 100 K$) clouds (CNM), warm ($T \sim 10^4 K$) clouds (WNM), or a combination of the two. High FUV fields convert the neutral gas to WNM, while low fields result in CNM. The sources of FUV radiation are the short-lived massive stars that generally originate in associations that form in Giant Molecular Clouds present in the galactic disk. Using McKee & Williams' (1997) distribution of birthrates for OB associations in the Galaxy, we determine the expected behavior of the time-dependent FUV field for random positions in the local ISM. The FUV field is calculated in two bands (912-1100 Åand 912-2070 Å) and at the wavelength 1400 Å. Our median value for the [912-2070 Å] band is $G_0=1.6$ times Habing's (1968) value for the radiation field at the solar circle in this band, and quite close to Draine's (1976) value, $G_0=1.7$. Due to attenuation by dust, only associations within about 500 pc contribute significantly to the energy density at a given point. The FUV field is asymmetric at a given point, and the asymmetry grows for higher fields. The FUV field fluctuates with a variety of amplitudes, the larger ones being less frequent. The mean field is about twice the median field because of these fluctuations, or spikes, in the radiation field. These spikes, which last $\sim 30$ Myr, are caused by the infrequent birth of nearby associations. We also model shorter duration spikes caused by runaway OB stars. The presence of a fluctuating heating rate created by the fluctuating FUV field converts CNM to WNM and vice versa.
description: 43 pages, 23 figures, submitted to ApJ
Stenoloba basiviridis Draudt 1950
Creators: name: Han, H. L.
name: Kononenko, V. S.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuidae
Stenoloba
Stenoloba basiviridis

description: Stenoloba basiviridis Draudt, 1950
(Fig. 28)
 Stenoloba basiviridis Draudt, 1950, Mitteilungen der Münchener Entomologischen Gesellshaft, 40(1): 132, Pl. 8: 19. Type locality: China, West Tien-mu-Shan, 1600 m. Holotype: female, preserved in ZFMK, Bonn.
 Kononenko & Ronkay, 2000, Insecta Koreana 17(3): 168, figs. 27, 70.
 Material examined. Holotype Stenoloba basiviridis (ZFMK); 1 male, Prov. Fujian, Shanghang, Gonghe, 21.vii.1988 (coll. F. Jiang); 1 male, Prov. Fujian, Taipingqiao, 23.vi.1989 (coll. S.C. Qi); 1 male, Prov. Hunan, Guzhanggaowangjie, 29.vii.1988 (coll. Y.X. Chen).
 Diagnosis. Differs externally from related species by broad forewings, brownish ash-grey ground colour with light greenish tint and contrast salad-green basal field. The species has been described from Prov. Shaanxsi (West Tien-mu-Shan) based on a single female (Draudt 1950). Kononenko & Ronkay (2000) tentatively placed it close to the newly described species S. dominula. The examination of the male genitalia confirms the placement of the species.
 Male genitalia (Fig. 28). Similar to S. dominula, but smaller in size. Uncus developed, flattened, relatively long, but shorter that in S. dominula; tegumen high, narrow, vinculum shorter than in S. dominula; juxta deltoid. Valva simple, with parallel margins, somewhat narrower than in S. dominula, apically rounded, apex with numerous spine-like setae; sacculus with broad lobe, narrower than in S. dominula. Aedeagus large, wider than in S. dominula; vesica tubular, curved ventrally, sack-like in central part, with large, semi globular diverticulum bearing strong, thorn-like cornutus. Female genitalia described by Kononenko & Ronkay (2000).
 Distribution. Central and South China (Provinces Fujan, Shaanxi and Hainan).
description: Published as part of Han, H. L. & Kononenko, V. S., 2009, A review of the genus Stenoloba Staudinger, 1892 from China, with description of 6 new species and 7 new records for China (Lepidoptera: Noctuidae, Bryophilinae), pp. 1-22 in Zootaxa 2268 (1) on pages 14-15, DOI: 10.11646/zootaxa.2268.1.1, http://zenodo.org/record/5306321
Retina organoids: Window into the biophysics of neuronal systems
Creators: name: Salbaum, Katja A.
name: Shelton, Elijah R.
name: Serwane, Friedhelm
Publisher: name: arXiv
Year: 2022
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: With a kind of magnetism, the human retina draws the eye of neuroscientist and physicist alike. It is attractive as a self-organizing system, which forms as a part of the central nervous system via biochemical and mechanical cues. The retina is also intriguing as an electro-optical device, converting photons into voltages to perform on-the-fly filtering before the signals are sent to our brain. Here, we consider how the advent of stem cell derived in vitro analogs of the retina, termed retina organoids, opens up an exploration of the interplay between optics, electrics, and mechanics in a complex neuronal network, all in a Petri dish. This review presents state-of-the-art retina organoid protocols by emphasizing links to the biochemical and mechanical signals of in vivo retinogenesis. Electrophysiological recording of active signal processing becomes possible as retina organoids generate light sensitive and synaptically connected photoreceptors. Experimental biophysical tools provide data to steer the development of mathematical models operating at different levels of coarse-graining. In concert, they provide a means to study how mechanical factors guide retina self-assembly. In turn, this understanding informs the engineering of mechanical signals required to tailor the growth of neuronal network morphology. Tackling the complex developmental and computational processes in the retina requires an interdisciplinary endeavor combining experiment and theory, physics, and biology. The reward is enticing: in the next few years, retina organoids could offer a glimpse inside the machinery of simultaneous cellular self-assembly and signal processing, all in an in vitro setting.
description: 41 pages, 2 Figures, This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Biophysics Rev. 3, 011302 (2022) and may be found at https://aip.scitation.org/doi/10.1063/5.0077014
Reparametrizing loop entropy weights: Effect on DNA melting curves
Creators: name: Blossey, Ralf
name: Carlon, Enrico
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Recent advances in the understanding of the melting behavior of double-stranded DNA with statistical mechanics methods lead to improved estimates of the weight factors for the dissociation events of the chains, in particular for interior loop melting. So far, in the modeling of DNA melting, the entropy of denaturated loops has been estimated from the number of configurations of a closed self-avoiding walk. It is well understood now that a loop embedded in a chain is characterized by a loop closure exponent c which is higher than that of an isolated loop. Here we report an analysis of DNA melting curves for sequences of a broad range of lengths (from 10 to 10^6 base pairs) calculated with a program based on the algorithms underlying MELTSIM. Using the embedded loop exponent we find that the cooperativity parameter is one order of magnitude bigger than current estimates. We argue that in the melting region the double helix persistence length is greatly reduced compared to its room temperature value, so that the use of the embedded loop closure exponent for real DNA sequences is justified.
description: 8 Pages, 9 Figures, substantially extended version
On the structure of hyperfields obtained as quotients of fields
Creators: name: Baker, Matthew
name: Jin, Tong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Rings and Algebras (math.RA)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We determine all isomorphism classes of hyperfields of a given finite order which can be obtained as quotients of finite fields of sufficiently large order. Using this result, we determine which hyperfields of order at most 4 are quotients of fields. The main ingredients in the proof are the Weil bounds from number theory and a result from Ramsey theory.
description: 9 pages. v2: fixed errors and improved exposition following referee report. To appear in Proceedings of the AMS
Massive Gravity on a Non-extremal Brane
Creators: name: Vazquez-Poritz, J. F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a brane world scenario which arises as the near-horizon region of a non-extremal D5-brane. There is a quasi-localized massive graviton mode, as well as harmonic modes of higher mass which are bound to the brane to a lesser degree. Lorentz invariance is slightly broken, which may have observable effects due to the leakage of the metastable graviton states into the bulk. Unlike a brane world arising from an extremal D5-brane, there is no mass gap. We also find that a brane world arising from a non-extremal M5/M5-brane intersection has the same graviton dynamics as that of a non-extremal D5-brane. This is evidence that a previously conjectured duality relation between the dual quantum field theories of each p-brane background may hold away from extremality.
description: 10 pages, 4 figures, LaTeX
A modular $A_4$ symmetric scotogenic model
Creators: name: Nomura, Takaaki
name: Okada, Hiroshi
name: Popov, Oleg
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a minimal extention of the Standard Model where neutrino masses are generated radiatively at one-loop level via Scotogenic scanario. The model is augmented with $A_4$ modular symmetry as a scotogenic and flavor symmetry. With minimal number of parameters, the model makes predictions for neutrino oscillation data, Majorana and Dirac phases, dark matter characteristics, and neutrinoless double beta decay.
description: 14 pages, 5 figures, 2 tables; version accepted for publication in Physics Letters B. arXiv admin note: text overlap with arXiv:1907.04716
K-nearest Multi-agent Deep Reinforcement Learning for Collaborative Tasks with a Variable Number of Agents
Creators: name: Khorasgani, Hamed
name: Wang, Haiyan
name: Tang, Hsiu-Khuern
name: Gupta, Chetan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: Traditionally, the performance of multi-agent deep reinforcement learning algorithms are demonstrated and validated in gaming environments where we often have a fixed number of agents. In many industrial applications, the number of available agents can change at any given day and even when the number of agents is known ahead of time, it is common for an agent to break during the operation and become unavailable for a period of time. In this paper, we propose a new deep reinforcement learning algorithm for multi-agent collaborative tasks with a variable number of agents. We demonstrate the application of our algorithm using a fleet management simulator developed by Hitachi to generate realistic scenarios in a production site.
Appendix S5 from Territorial landscapes: incorporating density-dependence into wolf habitat selection study designs
Creators: name: O'Neil, Shawn T.
name: Beyer, Dean E.
name: Bump, Joseph K.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Science
subject: Ecology

description: Estimates of gray wolf minimum population, pack size, and occupancy
Decoupled algorithm for the multicomponent potential theory of adsorption of gas mixtures
Creators: name: Lavoie, Raphaël Gervais
name: Hamelin, Jean
name: Bénard, Pierre
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In this paper, we present a new implementation of the Multicomponent Potential Theory of Adsorption model. The proposed interpretation establishes a clear cut between parameters that depends on the adsorbent from those depending on the adsorbate, which leads to a better understanding of the parameters signification. The interdependence between pure isotherms is eliminated, which mean that each component can be individually finely adjusted. This new approach was tested against 14 datasets for a total of 510 experimental mixture adsorption data of CH4, CO2, N2, H2, O2, H2S, C2H6, C3H6 and C3H8 on activated carbons, MOF and zeolites. A slight improvement of 4.67% on excess adsorption predictions was found, leading to an overall average error of 6.97% for total excess adsorption and 15.30% for combined mixtures and components excess adsorption predictions.
description: Updated version
Stenoloba viridimicta Hampson 1910
Creators: name: Han, H. L.
name: Kononenko, V. S.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuidae
Stenoloba
Stenoloba viridimicta

description: Stenoloba viridimicta Hampson, 1910
(Figs. 11, 26)
 Stenoloba viridimicta Hampson, 1910, Catalogue of the Lepidoptera Phalaenae in the British Museum 10: 369, Pl. 159: 31. Type locality: India, Meghalaya. Holotype: male, deposited in BMNH, London.
 Kononenko, Ronkay, 2001, Insecta Koreana 18(2): 97.
 Material examined. 1male, Prov. Yunnan, Jiangcheng, 15–17.ix.2008 (coll. H.L. Han & M.J. Qi).
 Diagnosis. Stenoloba viridimicta (Fig. 11) can be separated from S. chlolographa Kononenko & Ronkay, 2001 described from Nepal by larger size, robust body, and large thoracic tuft, narrow, rather long forewing with parallel costal and inner margins. Ground colour of forewing shiny, dark, brown grey mixed with somewhat bluish-grey and vivid green scales. Lower part of basal line sharply defined, white and blackish, upper part hardly traceable, base of wing and costal area brilliant mossy-green; antemedial line rather diffuse, orbicular spot hardly traceable, reniform stigma marked with dark dot and a more fine ochreous-yellow dots; claviform stigma substituted by black streak running from basal to antemedial line; costal area defined by thin long black streak running from medial field to outer margin of wing. In male genitalia (Fig. 26) uncus rudimental, tegumen high, narrow; juxta deltoid, apically extended; valva long, wide at base, strongly tapered apically, with patch of small spines in the apex. Aedeagus large, vesica large, globular, with small diverticulum in distal part, armed with short small cornutus; medial part with longitudinal sclerotized crispate ribbon and with small, sparse field of cornuti. Female unknown. This rare species had been known from only a few specimens from North India. The record in South West China significantly extends its known distribution.
 Distribution. North India, South West China (Prov. Yunnan, first record).
description: Published as part of Han, H. L. & Kononenko, V. S., 2009, A review of the genus Stenoloba Staudinger, 1892 from China, with description of 6 new species and 7 new records for China (Lepidoptera: Noctuidae, Bryophilinae), pp. 1-22 in Zootaxa 2268 (1) on page 15, DOI: 10.11646/zootaxa.2268.1.1, http://zenodo.org/record/5306321
Enhancement of pair creation due to locality in bound-continuum interactions
Creators: name: Su, D. D.
name: Li, Y. T.
name: Lv, Q. Z.
name: Zhang, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Electron-positron pair production from vacuum is studied in combined background fields, a binding electric potential well and a laser field. The production process is triggered by the interactions between the bound states in the potential well and the continuum states in the Dirac sea. By tuning the binding potential well, the pair production can be strongly affected by the locality of the bound states. The narrower bound states in position space are more efficient for pair production. This is in contrast to what is commonly expected that the wider extended bound states have larger region to interact with external fields and would thus create more particles. This surprise can be explained as the more localized bound states have a much wider extension in the momentum space, which can enhance the bound-continuum interactions in the creation process. This enhancement manifests itself in both perturbative and non-perturbative production regimes.
title: 01_2381
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Appendix S2 from Territorial landscapes: incorporating density-dependence into wolf habitat selection study designs
Creators: name: O'Neil, Shawn T.
name: Beyer, Dean E.
name: Bump, Joseph K.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Science
subject: Ecology

description: Estimation of territory boundary and size in relation to type of method used
Ultraviolet Detection of Interstellar 12C17O and the CO Isotopomeric Ratios toward X Persei
Creators: name: Sheffer, Yaron
name: Lambert, David L.
name: Federman, S. R.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the detection of fully resolved absorption lines of A-X bands from interstellar 12C17O and 12C18O, through high-resolution spectroscopy of X Per with the Space Telescope Imaging Spectrograph. The first ultraviolet measurement of an interstellar 12C17O column density shows that its isotopomeric ratio is 12C16O/12C17O = 8700 \pm 3600. Simultaneously, the second ultraviolet detection of interstellar 12C18O establishes its isotopomeric ratio at 3000 \pm 600. These ratios are about five times higher than local ambient oxygen isotopic ratios in the ISM. Such severe fractionation of rare species shows that both 12C17O and 12C18O are destroyed by photodissociation, whereas 12C16O avoids destruction through self-shielding. This is to be contrasted with our ratio of 12C16O/13C16O = 73 \pm 12 toward X Per, which is indistinguishable from 12C/13C, the result of a balance between photodissociation of 13C16O and its preferential formation via the isotope exchange reaction between CO and C^+.
description: 11 pages, incl. 1 figure. Accepted by ApJL
Binding interaction of acetylcholinesterase with steroidal pregnanes: insight from machine learning and atomistic simulation
Creators: name: Ogunyemi, Oludare M.
name: Macaulay, Oladimeji S.
name: Gyebi, Gideon A.
name: Ogunyemi, Modupe M.
name: Agunloye, Mary O.
name: Olaiya, Charles O.
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Computational Biology

description: Acetylcholinesterase (AChE) inhibition is a key strategy in the treatment of Alzheimer’s disease and other neurodegenerative disorders. While pregnane-based compounds have been suggested as AChE inhibitors, their mechanism of action remains unclear. This study employed machine learning (ML) and molecular modeling to probe the molecular interaction of AChE with steroidal pregnanes. The ML models were trained and validated on AChE bioactivity datasets to predict pIC50 and pKi values of small-molecule compounds. Among the models tested, the Random Forest Regressor demonstrated superior performance and was used to identify pregnanes with pIC50 ≥ 5 and pKi ≥ 7 as promising inhibitors. Molecular docking revealed strong molecular interactions between AChE and several pregnanes, particularly 21-[(3-Hydroxy-2-naphthyl)oxy]pregnane-2-one. This compound interacted with critical sub-sites within the AChE binding gorge, including the catalytic active site, peripheral anionic site, oxyanion hole, and anionic sub-site, through multiple hydrogen bonds and hydrophobic interactions. Molecular dynamics simulations over 100 ns indicated structural stability and conformational flexibility of representative AChE-pregnane complexes as indicated by the dynamic parameters and cluster patterns. The Molecular Mechanics with Generalized Born Surface Area free energy analysis confirmed strong binding affinities, while residual energy decomposition provided insights into key residue contributions. Additionally, the pregnanes demonstrated favorable blood-brain barrier permeability and other drug-like properties, suggesting their potential as neurotherapeutic agents. Given their predicted bioactivity, strong interactions with AChE, and drug-like properties, the identified pregnanes warrant further optimization and experimental evaluation for the development of safe and effective AChE inhibitors.
Broadband Noise Prediction of an Axial Compressor Operating at Low Reynolds Number
Creators: name: Wilsby, Oscar
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Large eddy simulation
low reynolds number
aeroacoustics

description: This thesis is an investigation into the production and prediction of broadband noise in axial compressors operating at low Reynolds number. The low Reynolds number (chord based $Re_C \leq 5\times 10^4$) regime presents new flow physics by the large regions of laminar flow that are present in the compressor. As such it is unclear how our conventional understanding of the noise sources in turbomachinery can be applied to this new regime. The research was conducted by designing and constructing a new single stage rotor-stator compressor on which the subsequent research was based. The work utilized a combination of experimental, computational and analytical methods. Aerodynamic and acoustic properties were measured on the compressor installed in a duct with clean inflow over a wide range of operating points. These results were then used to validate a set of incompressible, wall resolved Large Eddy Simulations (LES) on operating points representing on and off-design behavior. In the existing literature, there have been few if any studies utilizing wall resolved LES of a 3D rotor blade geometry for aeroacoustic source evaluation. A mesh dependency study was conducted in order to assess the level of refinement needed for convergence of turbulent statistics. It was found that although a fine resolution was needed for convergence of velocity and pressure spectra describing acoustic sources, a relatively coarse LES could still provide similar estimates of second order statistics such as Reynolds stresses. When compared to experiment, the LES results show a pleasing ability to accurately capture both first and second order statistics as well as turbulent velocity spectra, which cannot be said about steady Reynolds Averaged Navier Stokes (RANS) simulations. The simulations reveal that a significant portion of the midspan region of the blade remains laminar for the entire blade chord up until the trailing edge. Spanwise migration of the flow due to the rotational forces allow the boundary layer to stay laminar and attached. Generation of turbulence is then mainly limited to the secondary flows at the hub and tip gap which account for a large proportion of the wake turbulence. The secondary flows also feed turbulence into the blade profile boundary layers in these regions. A hybrid aeroacoustic prediction framework, based on the turbulent source description provided by the LES, and analytical acoustic propagation models are used to predict the overall sound power spectrum and compared favorably with the duct measurements. It is found that trailing edge noise and rotor-stator interaction noise are equally important contributors to the overall noise spectrum. However key narrowband humps which are not explained by these noise models exist, particularly off design.
description: Dyson Ltd
Stenoloba rufosagittoides Han & Kononenko 2009, sp. n.
Creators: name: Han, H. L.
name: Kononenko, V. S.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuidae
Stenoloba
Stenoloba rufosagittoides

description: Stenoloba rufosagittoides Han & Kononenko sp. n.
(Figs. 14, 31)
 Type material. Holotype: male, Prov. Sichuan, Mt. Emei, Wannian temple, 14.vi.1979 (collector unknown). The holotype is preserved in the collection of Institute of Zoology Chinese Academy of Sciences, Beijing.
 Diagnosis. Externally similar to S. rufosagitta, but differs from the former by more slender habitus, shape of forewing with oblique outer margin and more unicolorous pattern of forewing. Most significant differences are in the male genitalia, particularly in the structure of the tegumen and vinculum, the presence of peniculus, shape of valva and structure of vesica.
 Description. Adult (Fig. 14). Wingspan 22 mm. Head and thorax blackish-grey with light olive tint, collar marked with pale rufous. Abdomen dark-grey, dorsal crest absent. Forewing relatively short, with almost parallel dorsal and ventral margins; costa arched in basal part; apex rounded, outer margin of wing oblique. Ground colour of forewing blackish-grey, wing maculation represented by dark diffused lines; basal line distinct, with pale border and blackish scales; antemedial line dark, indistinct; medial field somewhat darker; postmedial line dark, diffused, more distinct in costal area; orbicular and reniform spots dark, diffused; subterminal line not expressed, cilia dark-brown. Inner margin with broad pale-rufous stripe, running from base of wing to postmedial line; torrnal patch pale-rufous, bordered with white scales inside and with black scales outside. Hindwing dark-brown, discal spot hardly traceable.
 Male genitalia (Fig. 31). Uncus rudimental, short and narrow; tegumen high, 2 times higher than vinculum; vinculum short, with large lateral extensions (peniculus); juxta broad and rounded at base, extended apically. Valva asymmetrical: -left valva with long, thin extension of sacculus. Valva short, rather massive, triangular in shape, very wide at base, strongly tapered apically, with hooked apical extension; sacculus narrow, but long, clasper as long plate directed parallel to ventral margin of valva; costa short, with short extension bearing short bristles. Aedeagus relatively long and thin; vesica tubular, everted ventrally, broadened in mid part, with two small diverticula in basal and middle parts and with sclerotized bar in apical part; cornuti absent. Female unknown.
 Etymology. The species name “ rufosagittoides ” is due to its external similarity to Stenoloba rufosagitta.
 Distribution. The species is known only from its type-locality, Prov. Sichuan, South West China.
description: Published as part of Han, H. L. & Kononenko, V. S., 2009, A review of the genus Stenoloba Staudinger, 1892 from China, with description of 6 new species and 7 new records for China (Lepidoptera: Noctuidae, Bryophilinae), pp. 1-22 in Zootaxa 2268 (1) on page 17, DOI: 10.11646/zootaxa.2268.1.1, http://zenodo.org/record/5306321
Interminiband absorption in a quantum ring superlattice in magnetic field with periodic vector potential
Creators: name: Aziz-Aghchegala, Vigen
name: Mughnetsyan, Vram
name: Atayan, Ara
name: Kirakosyan, Albert
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The miniband Aharonov-Bohm oscillations and the interminiband absorption coefficient have been considered theoretically for one-layer superlattices of square and rectangular symmetries, composed of cylindrical quantum rings in the external transverse magnetic field with a periodic vector potential by the lattice constants. The crossings and anticrossings of the energies corresponding to different values of quasimomentum are observed. It is shown that the energy gap between the minibands and the sequence of the energies in each miniband can be tuned by the magnetic field. The interminiband absorption coefficient qualitatively depends on the symmetry of the superlattice, magnetic field induction and the incident light polarization. The obtained results indicate on the possibility to control the electronic and optical characteristics of the devices based on quantum ring superlattices.
Spiral Molecular Front in Galaxies: Quick Transition from Atomic to Molecular Hydrogen in Spiral Arms
Creators: name: Hidaka, Makoto
name: Sofue, Yoshiaki
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We derived a two-dimensional map of the molecular fraction, fmol, (the ratio of molecular-gas density to that of total gas) in the spiral galaxy M51, and examined the behavior of molecular fronts (MF), where MF represents the place where fmol changes drastically from nearly zero to unity and vice versa. We show that the MF phenomenon occurs not only radial, but also in the azimuth direction through the spiral arms, and fmol changes rapidly in the arm-to-inter-arm transition regions. The existence of the azimuthal MF indicates that the atomic gas (HI) is quicklytransformed to molecular gas (H_2) during the passage through spiral arms. We performed a numerical simulation of MF based on an HI-to-H_2 phase transition theory, and reproduced the observations. We estimated a azimuthal scale length of the transition to be less than 200 pc, corresponding to a time scale of about 2 Myr for H_2 gas formation. The azimuthal width of a molecular arm is estimated to be at most 2.5 kpc, where the gas can remain in molecular phase for about 25 Myr.
description: To appear in PASJ, Latex 9 pages, 4 gif figures
Nonlocal Coulomb interaction and spin-freezing crossover as a route to valence-skipping charge order
Creators: name: Ryee, Siheon
name: Sémon, Patrick
name: Han, Myung Joon
name: Choi, Sangkook
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Multiorbital systems away from global half-filling host intriguing physical properties promoted by Hund's coupling. Despite increasing awareness of this regime dubbed Hund's metal, effect of nonlocal interaction is still elusive. Here we study a three-orbital model with $1/3$ filling (two electrons per site) including the intersite Coulomb interaction ($V$). Using the $GW$ plus extended dynamical mean-field theory, the valence-skipping charge order transition is shown to be driven by $V$. Most interestingly, the instability to this transition is significantly enhanced in the spin-freezing crossover regime, thereby lowering the critical $V$ to the formation of charge order. This behavior is found to be closely related to the population profile of the atomic multiplet states in the spin-freezing regime. In this regime, maximum spin states are dominant in each total charge subspace with substantial amount of one- and three-electron occupations, which leads to almost equal population of one- and the maximum spin three-electron state. Our finding unveils another feature of the Hund's metal, and has potential implications for the broad range of multiorbital systems as well as the recently discovered charge order in iron-pnictides.
Resolving FTO Barriers in GM Canola
Creators: name: Galushko, Viktoriya
name: Gray, Richard
name: Smyth, Stuart
name: Arnison, Paul
name: Galushko, Viktoriya
name: Gray, Richard
name: Smyth, Stuart
name: Arnison, Paul
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: intellectual property
subject: freedom to operate
subject: anti-commons
subject: patents

description: The development of intellectual property (IP) protection in plant breeding brought much needed private investment into canola research in the 1980s, but at the same time, fragmented research and IP ownership. In the 1990s, the biotechnology industry tried to addressed the growing IP fragmentation through a series of mergers and aquisitions. As we show through a survey of canola breeders, these changes reduced the sharing of knowledge in both the public and private sector, significantly increasing the cost of conducting breeding research. In the past decade, firms have clearly moved away from mergers and acquisitions and towards cross-licensing of IP. What remains to be seen, is whether these agreements get to the root of the freedom to operate (FTO) problem that exists in agricultural biotechnology.
PUBLIC VS PRIVATE AGBIOTECH RESEARCH: ROLE AND PATHWAYS THROUGH AN ANALYSIS OF EPO AND USTPO PATENTS 2002-2009
Creators: name: Gianfranco, Frisio
name: Giovanni, Ferrazzi
name: Vera, Ventura
name: Mauro, Vigani
name: Gianfranco, Frisio
name: Giovanni, Ferrazzi
name: Vera, Ventura
name: Mauro, Vigani
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: agbiotech
subject: patent
subject: intellectual properties
subject: public research.

description: Patents are a functional information tool in the study of agbiotech investments in research. The analysis aims to improve the knowledge of the international patent system, through the definition of an updated picture of agbiotech patent filed in EU and US, the two most significant innovation area worldwide, though presenting huge differences in managing IP rights. The paper provide a complex analysis of biotech patents patterns starting from a comprehensive data set including more than 7000 patents filed in the period 2002-2009. The main findings show that the private sector is still dominant and market oriented, but reveals a partial shift from the first wave of innovations to a new one characterized by nutritional components. The role of public sector in basic research is also confirmed, both in Europe and in US, and represents also a source of IP for innovative products. Public research is focused on plant developmental processes (i.e. abiotic resistance) useful in specific agricultural landscapes.
Quantum Bubbles in Microgravity
Creators: name: Tononi, A.
name: Cinti, F.
name: Salasnich, L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The recent developments of microgravity experiments with ultracold atoms have produced a relevant boost in the study of shell-shaped ellipsoidal Bose-Einstein condensates. For realistic bubble-trap parameters, here we calculate the critical temperature of Bose-Einstein condensation, which, if compared to the one of the bare harmonic trap with the same frequencies, shows a strong reduction. We simulate the zero-temperature density distribution with the Gross-Pitaevskii equation, and we study the free expansion of the hollow condensate. While part of the atoms expands in the outward direction, the condensate self-interferes inside the bubble trap, filling the hole in experimentally observable times. For a mesoscopic number of particles in a strongly interacting regime, for which more refined approaches are needed, we employ quantum Monte Carlo simulations, proving that the nontrivial topology of a thin shell allows superfluidity. Our work constitutes a reliable benchmark for the forthcoming scientific investigations with bubble traps.
description: 7 pages, 7 figures; published version
The use of Kepler solver in numerical integrations of quasi-Keplerian orbits
Creators: name: Deng, Chen
name: Wu, Xin
name: Liang, Enwei
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A Kepler solver is an analytical method used to solve a two-body problem. In this paper, we propose a new correction method by slightly modifying the Kepler solver. The only change to the analytical solutions is that the obtainment of the eccentric anomaly relies on the true anomaly that is associated to a unit radial vector calculated by an integrator. This scheme rigorously conserves all integrals and orbital elements except the mean longitude. However, the Kepler energy, angular momentum vector and Laplace-Runge-Lenz vector for perturbed Kepler problems are slowly-varying quantities. However, their integral invariant relations give the quantities high-precision values that directly govern five slowly-varying orbital elements. These elements combined with the eccentric anomaly determine the desired numerical solutions. The newly proposed method can considerably reduce various errors for a post-Newtonian two-body problem compared with an uncorrected integrator, making it suitable for a dissipative two-body problem. Spurious secular changes of some elements or quasi-integrals in the outer solar system may be caused by short integration times of the fourth-order Runge-Kutta algorithm. However, they can be eliminated in a long integration time of 10^8 years by the proposed method, similar to Wisdom-Holman second-order symplectic integrator. The proposed method has an advantage over the symplectic algorithm in the accuracy but gives a larger slope to the phase error growth.
description: 20 pages,11 figures,accepted for publication in MNRAS