cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thrychogena Rondani 1856
Creators: name: O'Hara, James E.
name: Cerretti, Pierfilippo
name: Pape, Thomas
name: Evenhuis, Neal L.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Thrychogena

description: 562. Thrychogena Rondani, 1856: 65.
 ORIGINALLY INCLUDED SPECIES: Thrychogena brevifrons Rondani, 1856.
 TYPE SPECIES: Thrychogena brevifrons Rondani, 1856, by monotypy.
 CURRENT STATUS: Nomen oblitum; senior (but invalid) synonym of Loewia Egger, 1856, nomen protectum [teste this work].
FAMILY: TACHINIDAE.
 REMARKS: Previous listings have Thrychogena Rondani, 1856 as a junior synonym of Loewia Egger, 1856, but this is incorrect. Rondani’s 1856 Prodromus volume was published on 10 September while Egger’s 1856 paper was published no earlier than December [see References in this paper for dating of these works]. Acceptance of Thrychogena Rondani as valid would upset stability as Loewia Egger is in prevailing usage as the valid name for the taxon. Thrychogena has to our knowledge not been used as a valid genus-group name since 1899, while Loewia has been used in more than 25 works by at least 10 authors in the last 50 years and encompassing a span of not less than 10 years, including the following: Belshaw (1993); Bergström (2007); Cerretti & Tschorsnig (2010); Cerretti et al. (2004); Chandler et al. (2000); Hedström (1985); Herting (1984); Herting & Dely-Draskovits (1993); Hubenov (1993, 2008); Kofler & Tschorsnig (2006); Merz et al. (2006); O’Hara (2002); O’Hara & Wood (2004); Richter (2004, 2008); Richter & Farinets (1990); Rognes (1986b); Tschorsnig & Herting (1994); Tschorsnig & Rezbanyai-Reser (2005); Tschorsnig & Richter (1998); Zeegers (1998); Ziegler (1996, 1998); Ziegler & Shima (1996). In the interests of nomenclatural stability, we hereby invoke reversal of precedence (ICZN Code Article 23.9.2) and declare Thrychogena Rondani, 1856 a nomen oblitum and Loewia Egger, 1856 a nomen protectum.
 EMENDATIONS: Thricogena Rondani, 1859b: 242 (unjustified), n. syn.; Thrichogena Bezzi, 1894: 352 (unjustified), n. syn.
 [Thrycolyga] Rondani, 1856: 68.
 CURRENT STATUS: Incorrect original spelling of Tricoliga Rondani, 1856 [teste this work].
FAMILY: TACHINIDAE.
description: Published as part of O'Hara, James E., Cerretti, Pierfilippo, Pape, Thomas & Evenhuis, Neal L., 2011, 3141, pp. 1-268 in Zootaxa 3141 on page 180
Thryptocheta Rondani 1856
Creators: name: O'Hara, James E.
name: Cerretti, Pierfilippo
name: Pape, Thomas
name: Evenhuis, Neal L.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Diastatidae
Thryptocheta

description: 563. Thryptocheta Rondani, 1856: 134.
 ORIGINALLY INCLUDED SPECIES: Diastata punctum Meigen, 1830.
 TYPE SPECIES: Diastata punctum Meigen, 1830, by original designation.
 CURRENT STATUS: Junior synonym of Campichoeta Macquart, 1835 [teste Mathis & Barraclough (2011: 252)].
FAMILY: DIASTATIDAE.
 EMENDATIONS: Thriptocheta Lioy, 1864d: 1108 (unjustified), n. syn.; Thryptochoeta Bezzi, 1892a: 38 (unjustified), n. syn.
description: Published as part of O'Hara, James E., Cerretti, Pierfilippo, Pape, Thomas & Evenhuis, Neal L., 2011, 3141, pp. 1-268 in Zootaxa 3141 on pages 180-181
METAGENOMICS INVESTIGATION OF ANAEROBIC DEGRADATION ECOSYSTEMS
Creators: name: Papp, Bernadett
name: Lakatos, Gergely
name: Nagy, Péter Tamás
name: Boboescu, Iulian Zoltán
name: Maróti, Gergely
name: Papp, Bernadett
name: Lakatos, Gergely
name: Nagy, Péter Tamás
name: Boboescu, Iulian Zoltán
name: Maróti, Gergely
Publisher: name: Unknown
Year: 2016
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Anaerobic digestion
subject: biogas
subject: metagenomics
subject: methane
subject: microbial community
subject: syntrophic interactions

description: Biomethane has gained increasing attention in the recent years as an alternative, local energy source option. Biogas is generated during the anaerobic digestion of organic materials via a multistep process catalyzed by complex microbial communities. This review aims at providing a concise summary of recent studies on the microbial communities in various biogas reactors. The effects of acid composition, C/N ratio, mixing and the geometry of the anaerobic digester on the microbial ecosystem are discussed. The biogas microbial communities show extensive fluctuations in response to changes in temperature, substrate type, pH, type of volatile fatty acids, organic loading rate, etc. The goals to ensure efficient anaerobic degradation and to maximize the biogas production require the better understanding of these bacterial-archaeal ecosystems, since functional stability strongly correlates with the state and composition of microbial communities. The safe and controlled intensification of biogas production would be an important step to make biogas a real competitor of fossil fuels.
Fissidens ovatifolius R. Ruthe
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Fissidentales
Fissidentaceae
Fissidens
Fissidens ovatifolius

description: Fissidens ovatifolius R.Ruthe
RECORDS. — Jelenc (1949, 1955a, 1967), Bonnot (1963): Monts de Tlemcen, forêt de Zariflet, 1100 m. Bonnot (1963): Oued Yquem. Boukhatem et al. (2017): El-Kala National Park, Tonga lake watershed. Rare.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 76, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Re-designing Design and Technology Education: A living literature review of stakeholder perspectives (Published Paper)
Creators: name: Irving-Bell, Dawne
name: McLain, Matt
name: Wooff, David
Publisher: name: figshare
Year: 2021
Subjects: subject: 130313 Teacher Education and Professional Development of Educators
subject: FOS: Educational sciences
subject: 130101 Continuing and Community Education
subject: 130106 Secondary Education
subject: Education
subject: 130108 Technical, Further and Workplace Education
subject: 130103 Higher Education
subject: 220202 History and Philosophy of Education
subject: FOS: Philosophy, ethics and religion
subject: 130213 Vocational Education and Training Curriculum and Pedagogy
subject: 130303 Education Assessment and Evaluation

description: Created following the amalgamation of several individual subject disciplines, in England, design and technology is in decline. Debates about its purpose and position have taken place since its inception but arguably these have not transferred into a rigorous research base. There is a growing body of scholars exploring the field, but with the decline of the subject, so the community working and investigating it is also diminished. Without a strong foundation, the actions of the few may not carry sufficient weight to generate full and meaningful debate that would influence those with the power to change policy on curriculum and lead to innovation. If we are to have any hope of reversing the subject’s deterioration, we must do something bold and significant. While an awareness of the subject’s history and its evolution is integral to our understanding of how and why we are where we are, merely reflecting on the past will do little to help the subject move forward. Hence, the principal aim of our research is to explore what a re-designed design and technology could look like. To achieve this, this study draws on different stakeholders’ visions of how they perceive the subject’s future. Theoretical underpinning of this work is derived from abductive grounded theory, which aligns with the researcher’s individual ontological positions. Drawing together the findings from participants, this paper presents outcomes in the form of a ‘living document’. We see this as the first phase in an ongoing study into the future of the subject. Findings indicate a diverse range of opinion relating to the subject’s future. Following analysis, outcomes are discussed, and future steps to re-imagine the subject are then explored.
A HAZAI CHP-ALAPÚ VILLAMOSENERGIA-TERMELÉS IDŐSOROS ELEMZÉSE, A GÁZMOTOROS MEGOLDÁSOK JÖVŐJE ÉS ZAJTERHELÉSI VONATKOZÁSAI
Creators: name: Beke, Péter
name: Beke, Péter
Publisher: name: Unknown
Year: 2016
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Resource /Energy Economics and Policy
subject: kapcsolt energiatermelés
subject: kogeneráció
subject: villamos energia
subject: gázmotor
subject: környezeti zaj
subject: combined energy production
subject: cogeneration
subject: electric energy
subject: gas-engine
subject: environmental noise

description: A kapcsolt energiatermelési módok – amikor villamos energia és hő előállítása egyazon technológiai folyamat keretében történik – fontos eszközei a hatékony energiatermelésnek. A nagyerőművekkel megvalósított kapcsolt energiatermelés mellett lé¬tez¬nek kisebb telje¬sít-ményű, az energiafelhasználás helyéhez közel telepíthető technológiák is, mint például a gázmotoros megoldások. Magyarországon a kapcsolt energiatermelés történetében az utóbbi 25 éves időszakban figyelemre méltó fordulatok következtek be. Ezen időszak idősoros elemzésével célszerű rávilágítani a műszaki, gazdasági és szabályozási változásokra, különös figyelmet fordítva a gázmotoros megoldásokra. A fogyasztóhoz gyakran fizikailag is közel kerülő gázmotorokkal megvalósított kapcsolt energiatermelés által okozott környezet¬ter¬he¬lé-sek közül a környezeti zaj- és rezgésterhelési kérdé¬sek kiemelkedő szerepet töltenek be. A szerző tervezési és szakértési tapasztalatai alapján bemutatásra kerülnek a gázmotorok telepítésével kapcsolatos zaj- és rezgésvédelmi megoldások az elmúlt időszakra vonatkozóan, valamint kitekintés történik a jövőben várható gázmotoros megoldásokra, azok várható zaj- és rezgésterhelési vonzataira. ----------------------------------------------- The combined energy production methods – when producing electric energy and heat within the same process of technology - are important tools of the efficient energy production. The combined energy production can be realized by traditional power stations but also by smaller power stations using different technologies, which can be moved nearer to the location of the energy consumption. One of the combined energy production technology is using combustion engines, especially gas engines. Gas engines very often can be situated quite near to the energy consumer and that way the environmental noise and vibration pollutions caused by the gas engines are an important issue. Based on the planning and consulting experiences of the author the solutions of the noise and vibration problems of the past are shown in this article and an overview is given about the possible situation of the gas engines in the future and their expectable noise and vibration problems.
Axisymmetric Squirmers in Stokes Fluid with Nonuniform Viscosity
Creators: name: Eastham, Patrick S.
name: Shoele, Kourosh
Publisher: name: arXiv
Year: 2019
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The ciliary locomotion and feeding of an axisymmetric micro-swimmer in a complex fluid whose viscosity depends on nutrient concentration are investigated numerically. The micro-swimmer is modeled as having spheroidal geometry, and ciliary beating is modeled by a slip velocity; i.e. a squirmer is adapted. Looking at the coupling between swimming and feeding of spheroidal squirmers, it is found that swimming speed and feeding are most affected by a non-uniform viscosity environment when the ratio of advection-forces to diffusion-transport, characterized by the nondimensional Peclét number, is moderate ($\text{Pe}\approx 10$). These changes are correlated to significant increases in the pressure force on the surface of the squirmer. The swimming and feeding changes are found to be more significant in oblate spheroids than prolate spheroids. Most interestingly, nontrivial symmetric slip boundary conditions on the surface of the squirmer, which results in zero net motion in a constant viscosity fluid, can yield non-zero propulsion when paired with asymmetric nutrient boundary conditions. The fact that symmetric fluid boundary conditions can result in asymmetric propulsion has implications for the design of artificial micro-swimmers and other low-$\text{Re}$ squirmers in complex fluids.
THE INFLUENCE OF THE CHANGING POPULATION ON THE BUS TRANSPORT IN THE AGGLOMERATION OF GYŐR
Creators: name: Bedő, Anett
name: Pestiné Rácz, Éva
name: Bedő, Anett
name: Pestiné Rácz, Éva
Publisher: name: Unknown
Year: 2016
Subjects: subject: Community/Rural/Urban Development
subject: Public Economics
subject: bus
subject: public transport
subject: urban transportation
subject: agglomeration
subject: autóbusz
subject: közlekedés

description: Environmental, social and economic problems are currently ones of the most important questions of sustainable development. Issues related to agglomerations should get more emphasis now than ever before. Near half of the population lives and works in these areas, moreover the global scale urbanization continues to grow altering villages near to towns. The role of transport in the evolution of the environmental conditions of the agglomeration has been increasing. Herby it is getting more important in township development, consequently optimization of transportation becomes a keystone of sustainable agglomeration. In our study, the bus transport of Győr’s agglomeration was investigated. Connections among parameters of the settlements and bus patches were investigated in order to clarify causes of transport preferences of the inhabitants (bus contra motor-car). As a result of our research, it turned out that inhabitants of the rich villages tend to use car instead of busses independently from the time they would spend on the busses. Significant linear correlation is demonstrated between the proportion of the bus users and the distance from Győr independently from the income level of the inhabitants. ------------------------------------------------------------ Napjaink környezeti, társadalmi és gazdasági problémáinak egyik legjelentősebb alapkérdése a fenntartható fejlődés, a jövő generációk életlehetőségeinek és feltételeinek biztosítása. Ezen belül az agglomerációs övezetekhez kapcsolódó problémáknak nagyobb hangsúlyt kell kapnia a korábbi időszakhoz képest, hiszen a lakosság jelentős része él és dogozik ezeken a területeken, sőt globális szinten az urbanizáció továbbra is növekszik a városok melletti településeken. Az agglomerációs övezetek környezetállapot alakulásában egyre nagyobb a közlekedés szerepe, ami a településfejlődés egyre jelentősebb részét képezi, ezáltal a közlekedés optimalizálása a fenntartható agglomeráció egyik kulcskérdése. Jelen tanulmány keretében Győr város agglomerációs övezetében lévő települések buszközlekedését vizsgáltuk. A települések és a buszjáratok adatai alapján kerestünk összefüggéseket arra vonatkozóan, hogy milyen paraméterek lehetnek meghatározók abban, hogy az agglomerációban lakók a bejáráshoz személygépkocsit vagy a buszközlekedést preferálják. Kutatásunk során megállapítottuk, hogy a tehetősebb települések lakosai előnyben részesítik a személygépjármű közlekedést függetlenül az autóbuszon töltött időtől. A vizsgált településekről busszal utazók aránya és a települések Győrtől való távolsága között szoros lineáris kapcsolat van, amit a lakosság jövedelmi szintje sem befolyásol.
Toric Duality as Seiberg Duality and Brane Diamonds
Creators: name: Feng, Bo
name: Hanany, Amihay
name: He, Yang-Hui
name: Uranga, Angel M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use field theory and brane diamond techniques to demonstrate that Toric Duality is Seiberg duality for N=1 theories with toric moduli spaces. This resolves the puzzle concerning the physical meaning of Toric Duality as proposed in our earlier work. Furthermore, using this strong connection we arrive at three new phases which can not be thus far obtained by the so-called ``Inverse Algorithm'' applied to partial resolution of C^3/Z_3 x Z_3. The standing proposals of Seiberg duality as diamond duality in the work by Aganagic-Karch-Lüst-Miemiec are strongly supported and new diamond configurations for these singularities are obtained as a byproduct. We also make some remarks about the relationships between Seiberg duality and Picard-Lefschetz monodromy.
description: 33 pages and 15 figures; references added and some minor changes on the remarks on Picard-Lefschetz theory
Development of an Agricultural Biomaterial Industry in Ontario
Creators: name: Oo, Aung
name: Muntasir, Nafis
name: Poon, Kenneth
name: Weersink, Alfons
name: Thimmanagari, Mahendra
name: Oo, Aung
name: Muntasir, Nafis
name: Poon, Kenneth
name: Weersink, Alfons
name: Thimmanagari, Mahendra
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: biomaterial
subject: biocomposites
subject: fibreboards
subject: innovation

description: The agricultural-based biomaterial industry in Ontario is investigated with an overarching goal of formulating strategies to accelerate the industry’s establishment and development. The availability of current and potential biomass feedstock for use in the biomaterial sector is assessed. The current market status of selected biomaterials is analyzed, and the promising biomaterials for immediate commercial establishment in Ontario are identified. Policy instruments to promote the biomaterial industry are examined and compared with those in other jurisdictions. The influential factors in commercializing biomaterials and barriers are reviewed, and an evaluation matrix to screen the biomaterials/firms is developed. The strategic approach to accelerate the industry development is proposed with the prioritized market sectors and biomaterials.
Toxopora Rondani 1856
Creators: name: O'Hara, James E.
name: Cerretti, Pierfilippo
name: Pape, Thomas
name: Evenhuis, Neal L.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Toxopora

description: 565. Toxopora Rondani, 1856: 225.
 CURRENT STATUS: Unjustified emendation of Toxophora Meigen, 1803 (as “ Toxopora Widm ”); junior synonym of Toxophora Meigen, 1803. New synonymy.
FAMILY: BOMBYLIIDAE.
REMARKS: Name made available as an emendation by virtue of similar spelling changes in two or more names from “ph” to “p” in the same work.
description: Published as part of O'Hara, James E., Cerretti, Pierfilippo, Pape, Thomas & Evenhuis, Neal L., 2011, 3141, pp. 1-268 in Zootaxa 3141 on page 181
Generation of maximum spin entanglement induced by cavity field in quantum-dot systems
Creators: name: Miranowicz, A.
name: Ozdemir, S. K.
name: Liu, Yu-xi
name: Koashi, M.
name: Imoto, N.
name: Hirayama, Y.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Equivalent-neighbor interactions of the conduction-band electron spins of quantum dots in the model of Imamoglu et al. [Phys. Rev. Lett. 83, 4204 (1999)] are analyzed. Analytical solution and its Schmidt decomposition are found and applied to evaluate how much the initially excited dots can be entangled to the remaining dots if all of them are initially disentangled. It is demonstrated that the perfect maximally entangled states (MES) can only be generated in the systems of up to 6 dots with a single dot initially excited. It is also shown that highly entangled states, approximating the MES with a good accuracy, can still be generated in systems of odd number of dots with almost half of them being excited. A sudden decrease of entanglement is observed by increasing the total number of dots in a system with a fixed number of excitations.
description: 6 pages, 7 figures, to appear in Phys. Rev. A
Constraining the Radio Emission of TRAPPIST-1
Creators: name: Hughes, Anna
name: Boley, Aaron
name: Osten, Rachel
name: White, Jacob
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: TRAPPIST-1 is an ultracool dwarf (UCD) with a system of 7 terrestrial planets, at least three of which orbit in the habitable zone. The radio emission of such low-mass stars is poorly understood; few UCDs have been detected at radio frequencies at all, and the likelihood of detection is only loosely correlated with stellar properties. Relative to other low-mass stars, UCDs with slow rotation such as TRAPPIST-1 tend to be radio dim, whereas rapidly rotating UCDs tend to have strong radio emission - although this is not always the case. We present radio observations of TRAPPIST-1 using ALMA at 97.5 GHz and the VLA at 44 GHz. TRAPPIST-1 was not detected at either frequency and we place $3 σ$ upper flux limits of 10.6 and 16.2 $μ$Jy, respectively. We use our results to constrain the magnetic properties and possible outgoing high energy particle radiation from the star. The presence of radio emission from UCDs is indicative of a stellar environment that could pose a threat to life on surrounding planets. Gyrosynchrotron emission, discernible at frequencies between 20 and 100 GHz, is one of the only processes that can be used to infer the presence of high energy particles released during magnetic reconnection events. Since M dwarfs are frequent hosts of terrestrial planets, characterizing their stellar emission is a crucial part of assessing habitability. Exposure to outgoing high energy particle radiation - traceable by radio flux - can erode planetary atmospheres. While our results do not imply that the TRAPPIST-1 planets are suitable for life, we find no evidence that they are overtly unsuitable due to proton fluxes.
description: 9 pages, 3 figures, accepted to ApJ
Modular Invariant Slow Roll Inflation
Creators: name: Ding, Gui-Jun
name: Jiang, Si-Yi
name: Zhao, Wenbin
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose new classes of inflation models based on the modular symmetry, where the modulus field $τ$ serves as the inflaton. We establish a connection between modular inflation and modular stabilization, wherein the modulus field rolls towards a fixed point along the boundary of the fundamental domain. We find the modular symmetry strongly constrain the possible shape of the potential and identify some parameter space where the inflation predictions agree with cosmic microwave background observations. The tensor-to-scalar ratio is predicted to be smaller than $10^{-6}$ in our models, while the running of spectral index is of the order of $10^{-4}$.
description: 32 pages, 6 figures, comments are welcomed, version published in JCAP
Farm investment and the filière: the influence of internal and external environments on subsidised investment in greenhouse agriculture in Northeast Portugal
Creators: name: Gerry, Chris
name: Koehnen, Timothy
name: Vaz Caldas, José
name: Gerry, Chris
name: Koehnen, Timothy
name: Vaz Caldas, José
Publisher: name: Unknown
Year: 1999
Subjects: Agribusiness
Agricultural and Food Policy
Community/Rural/Urban Development
Industrial Organization

description: This paper presents the preliminary results of the research-in-progress on the 1990-95 subsidised investment boom in greenhouse agriculture in the Tras-os-Montes e Alto Douro region, in Northeast part of Portugal. The primary aims of the initial phase of this research are: (1) to build a profile of the type of farmers involved, (2) to evaluate the impact and the sustainability of the investments made, (3) to identify important economic and institutional actors in the preparation, submission and implementation phases of subsidised farm modernisation. The conclusions, so far drawn, underline the hypothesis that the success or failure of those investments cannot be explained merely in terms of factors associated with the farm enterprise's "internal environment". Both improved analysis and policy making depend on a careful assessment of the respective roles played by all key actors in the investment process - including other firms in the "filière", government agencies and the technical consultants involved in designing investment plans.
Square-well model for superconducting pair-potential
Creators: name: Thuneberg, Erkki
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study Andreev reflection in a one-dimensional square-well pair-potential. We discuss the history of the model. The current-phase relation is presented as a sum over Matsubara frequencies. How the current arises from bound and continuum levels is found by analytic continuation. We discuss two limiting cases of the square-well potential, the zero-length well and the infinite well. The model is quantitatively valid in some cases but forms the basis for understanding a wide range of problems in inhomogeneous superconductivity and superfluidity.
description: 12 pages, 6 figures. This version of the article has been accepted for publication in A.F. Andreev Memorial Collection, after peer review but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections
Routh Reduction of Palatini Gravity in Vacuum
Creators: name: Capriotti, Santiago
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 53C80, 53C05 (Primary), 83C05, 70S05, 70S10 (Secondary)

description: An interpretation of Einstein-Hilbert gravity equations as Lagrangian reduction of Palatini gravity is made. The main technique involved in this task consists in representing the equations of motion as a set of differential forms on a suitable bundle. In this setting Einstein-Hilbert gravity can be considered as a kind of Routh reduction of the underlying field theory for Palatini gravity. As a byproduct of this approach, a novel set of conditions for the existence of a vielbein for a given metric is found.
Quarter BPS Operators in N=4 SYM
Creators: name: Ryzhov, Anton V.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Chiral primary operators annihilated by a quarter of the supercharges are constructed in the four dimensional N=4 Super-Yang-Mills theory with gauge group SU(N). These quarter-BPS operators share many non-renormalization properties with the previously studied half-BPS operators. However, they are much more involved, which renders their construction nontrivial in the fully interacting theory. In this paper we calculate order g^2 two-point functions of local, polynomial, scalar composite operators within a given representation of the SU(4) R-symmetry group. By studying these two-point functions, we identify the eigenstates of the dilatation operator, which turn out to be complicated mixtures of single and multiple trace operators. Given the elaborate combinatorics of this problem, we concentrate on two special cases. First, we present explicit computations for quarter-BPS operators with scaling dimension Delta < 8. In this case, the discussion applies to arbitrary N of the gauge group. Second, we carry out a leading plus subleading large N analysis for the particular class of operators built out of double and single trace operators only. The large N construction addresses quarter-BPS operators of general dimension.
description: 38 pages, Latex, eps figures, uses epsfig.sty; references added
Review of small farmer finance and livelihoods in South Africa
Creators: name: Moyo, Sibusiso
name: Coetzee, Gerhard
name: Moyo, Sibusiso
name: Coetzee, Gerhard
Publisher: name: Unknown
Year: 2002
Subjects: Agricultural Finance
Farm Management

description: Introduction : This overview serves as a section of the background work for the Small Farmer Finance project. The project is based on the reality of the rural areas of South Africa. It recognizes that rural people mobilise income from a range of sources. In many instances farming plays an important role, but in terms of monetary contribution to the household income, not as important a role. It seeks to find adequate background material on which to base the next stage of the study. In this background document we start with an overview of the microfinance market in South Africa. This provides an overview of the complete microfinance sector, including the finance of small farmers. Note that we concentrate on loans below R10000. However, we will also address larger loans (from R10000 to R100000) in a sub-section on small farmer finance. This overview is followed by a discussion and illustration of livelihood strategies in the rural areas of South Africa. This is then combined in a section on finance and livelihoods. Due to the importance of the impact of HIV/AIDS in South Africa we also include a relevant section followed by some concluding remarks.
Thyreodontha Rondani 1863
Creators: name: O'Hara, James E.
name: Cerretti, Pierfilippo
name: Pape, Thomas
name: Evenhuis, Neal L.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Stratiomyidae
Thyreodontha

description: 564. Thyreodontha Rondani, 1863: 77 [1864a: 77].
 ORIGINALLY INCLUDED SPECIES: Stratiomys strigata Fabricius, 1781.
 TYPE SPECIES: Stratiomys strigata Fabricius, 1781 [= Hirtea longicornis Scopoli, 1762], by original designation.
 CURRENT STATUS: Junior synonym of Stratiomys Geoffroy, 1762 [teste Woodley (2001: 294)].
FAMILY: STRATIOMYIDAE.
 EMENDATIONS: Thyreodonta Marschall, 1873: 348 (unjustified), n. syn; Thyreodonta Bezzi, 1903: 16 (unjustified).
 [Toxoneura] Rondani, 1875a: 245.
 CURRENT STATUS: Incorrect subsequent spelling of Toxonevra Macquart, 1835.
FAMILY: PALLOPTERIDAE.
REMARKS: Criteria for making this name available as an emendation were not found to be fulfilled in this work.
description: Published as part of O'Hara, James E., Cerretti, Pierfilippo, Pape, Thomas & Evenhuis, Neal L., 2011, 3141, pp. 1-268 in Zootaxa 3141 on page 181
Signal Enhancement in Distributed Acoustic Sensing Data Using a Guided Unsupervised Deep Learning Network
Creators: name: Saad, Omar M.
name: Ravasi, Matteo
name: Alkhalifah, Tariq
Publisher: name: arXiv
Year: 2024
Subjects: subject: Geophysics (physics.geo-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Distributed Acoustic Sensing (DAS) is a promising technology introducing a new paradigm in the acquisition of high-resolution seismic data. However, DAS data often show weak signals compared to the background noise, especially in tough installation environments. In this study, we propose a new approach to denoise DAS data that leverages an unsupervised deep learning (DL) model, eliminating the need for labeled training data. The DL model aims to reconstruct the DAS signal while simultaneously attenuating DAS noise. The input DAS data undergo band-pass filtering to eliminate high-frequency content. Subsequently, a continuous wavelet transform (CWT) is performed, and the finest scale is used to guide the DL model in reconstructing the DAS signal. First, we extract 2D patches from both the band-pass filtered data and the CWT scale of the data. Then, these patches are converted using an unrolling mechanism into 1D vectors to form the input of the DL model. The architecture of the proposed DL network is composed of several fully-connected layers. A self-attention layer is further included in each layer to extract the spatial relation between the band-pass filtered data and the CWT scale. Through an iterative process, the DL model tunes its parameters to suppress DAS noise, with the band-pass filtered data serving as the target for the network. We employ the log cosh as a loss function for the DL model, enhancing its robustness against erratic noise. The denoising performance of the proposed framework is validated using field examples from the San Andreas Fault Observatory at Depth (SAFOD) and Frontier Observatory for Research in Geothermal Energy (FORGE) datasets, where the data are recorded by a fiber-optic cable. Comparative analyses against three benchmark methods reveal the robust denoising performance of the proposed framework.
description: This paper has been submitted to Geophysics
Effect of noise on geometric logic gates for quantum computation
Creators: name: Blais, A.
name: Tremblay, A. -M. S.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce the non-adiabatic, or Aharonov-Anandan, geometric phase as a tool for quantum computation and show how it could be implemented with superconducting charge qubits. While it may circumvent many of the drawbacks related to the adiabatic (Berry) version of geometric gates, we show that the effect of fluctuations of the control parameters on non-adiabatic phase gates is more severe than for the standard dynamic gates. Similarly, fluctuations also affect to a greater extent quantum gates that use the Berry phase instead of the dynamic phase.
description: 8 pages, 4 figures; published version
Space of non-Fermi liquids
Creators: name: Kukreja, Shubham
name: Besharat, Afshin
name: Lee, Sung-Sik
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In metals, low-energy effective theories are characterized by a set of coupling functions. Among them, the angle-dependent Fermi momentum specifies the size and shape of Fermi surface. Since the Fermi momentum grows incessantly under the renormalization group flow, a metallic fixed point is defined only modulo a rescaling of Fermi momentum. In this paper, we discuss the physical consequences of this projective nature of fixed points for non-Fermi liquids with hot Fermi surfaces. The first is the absence of a unique dynamical critical exponent that dictates the relative scaling between energy and momentum. The second is mismatches between the scaling dimensions of couplings and their relevancy. Nonetheless, each projective fixed point is characterized by a few marginal and relevant coupling functions, and the notion of universality survives. We illustrate our findings by charting the space of projective fixed points and extracting their universal properties for the Ising-nematic quantum critical metal beyond the patch theory. To control the theory, we use the dimensional regularization scheme that tunes the co-dimension of Fermi surface. Near the upper critical dimension, two exactly marginal coupling functions span the space of stable projective fixed points: functions that specify the shape of the Fermi surface and the angle-dependent Fermi velocity. All other coupling functions, including the Landau functions and the universal pairing interaction, are fixed by those two marginal functions. With decreasing dimensions, the forward scattering remains irrelevant while the pairing interaction becomes relevant near two dimensions. In two dimensions, it is expected that the universal superconducting fluctuations lower the symmetry of the non-Fermi liquid realized above the superconducting transition temperatures from the loop U(1) group to a proper subgroup.
description: 71 pages; v3) Fig. 10b replaced
Constrained Attractor Selection Using Deep Reinforcement Learning
Creators: name: Wang, Xue-She
name: Turner, James D.
name: Mann, Brian P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Systems and Control (eess.SY)
subject: Machine Learning (cs.LG)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: This paper describes an approach for attractor selection (or multi-stability control) in nonlinear dynamical systems with constrained actuation. Attractor selection is obtained using two different deep reinforcement learning methods: 1) the cross-entropy method (CEM) and 2) the deep deterministic policy gradient (DDPG) method. The framework and algorithms for applying these control methods are presented. Experiments were performed on a Duffing oscillator, as it is a classic nonlinear dynamical system with multiple attractors. Both methods achieve attractor selection under various control constraints. While these methods have nearly identical success rates, the DDPG method has the advantages of a high learning rate, low performance variance, and a smooth control approach. This study demonstrates the ability of two reinforcement learning approaches to achieve constrained attractor selection.
description: 14 pages, 6 figures. Update: more application examples of attractor selection; detailed algorithms for CEM and DDPG
KID-PPG: Knowledge Informed Deep Learning for Extracting Heart Rate from a Smartwatch
Creators: name: Kechris, Christodoulos
name: Dan, Jonathan
name: Miranda, Jose
name: Atienza, David
Publisher: name: arXiv
Year: 2024
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Accurate extraction of heart rate from photoplethysmography (PPG) signals remains challenging due to motion artifacts and signal degradation. Although deep learning methods trained as a data-driven inference problem offer promising solutions, they often underutilize existing knowledge from the medical and signal processing community. In this paper, we address three shortcomings of deep learning models: motion artifact removal, degradation assessment, and physiologically plausible analysis of the PPG signal. We propose KID-PPG, a knowledge-informed deep learning model that integrates expert knowledge through adaptive linear filtering, deep probabilistic inference, and data augmentation. We evaluate KID-PPG on the PPGDalia dataset, achieving an average mean absolute error of 2.85 beats per minute, surpassing existing reproducible methods. Our results demonstrate a significant performance improvement in heart rate tracking through the incorporation of prior knowledge into deep learning models. This approach shows promise in enhancing various biomedical applications by incorporating existing expert knowledge in deep learning models.
Monaural speech enhancement on drone via Adapter based transfer learning
Creators: name: Chen, Xingyu
name: Bi, Hanwen
name: Lai, Wei-Ting
name: Ma, Fei
Publisher: name: arXiv
Year: 2024
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Monaural Speech enhancement on drones is challenging because the ego-noise from the rotating motors and propellers leads to extremely low signal-to-noise ratios at onboard microphones. Although recent masking-based deep neural network methods excel in monaural speech enhancement, they struggle in the challenging drone noise scenario. Furthermore, existing drone noise datasets are limited, causing models to overfit. Considering the harmonic nature of drone noise, this paper proposes a frequency domain bottleneck adapter to enable transfer learning. Specifically, the adapter's parameters are trained on drone noise while retaining the parameters of the pre-trained Frequency Recurrent Convolutional Recurrent Network (FRCRN) fixed. Evaluation results demonstrate the proposed method can effectively enhance speech quality. Moreover, it is a more efficient alternative to fine-tuning models for various drone types, which typically requires substantial computational resources.
Fissidens pusillus Milde
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Fissidentales
Fissidentaceae
Fissidens
Fissidens pusillus

description: Fissidens pusillus (Wilson) Milde
RECORDS. — Bescherelle (1882): Ben-Aknoun. Bescherelle (1882), Jelenc (1955a): Alger; Birkadem; Bou Khalfa; Kabylie; Stora. Gandoger (1883): sine loco. Corbière (1889), Jelenc (1955a): Blida. Corbière (1905): Environs de Constantine, Le Hamma. Corbière (1905), Jelenc (1955a): Environs de Constantine, Sidi M’Cid, près les Arcades romaines, pépinière du djebel Ouach. Jelenc (1951, 1967): Haute-Plaine de Tlemcen, 700 m. Jelenc (1955a): Birmandreïs; El Biar; La Réghaia; Philippeville. Boukhatem et al. (2017): El-Kala National Park, Tonga lake watershed. Frequent.
COMMENT
According to Bruggeman-Nannenga (1978), F. subimmarginatus Philib., as reported from the Massif de la Bouzaréa by Jelenc (1955b, 1967), should be regarded as a synonymous with F. exiguus. Later, Pursell (1997) considered F. exiguus synonymous with F. bryoides var. pusillus (Wilson) Pursell, and this was the criterion adopted byRos et al. (1999) for the checklis of Algeria. However, Ros et al. (2013) and Hodgetts et al. (2020) considered F. exiguus auct. eur. to be synomymous with F. viridulus, which is the criterion followed here.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 77, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Three-Point Functions of Quarter BPS Operators in N=4 SYM
Creators: name: D'Hoker, Eric
name: Ryzhov, Anton V.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a recent paper hep-th/0109064, quarter-BPS chiral primaries were constructed in the fully interacting four dimensional N=4 Super-Yang-Mills theory with gauge group SU(N). These operators are annihilated by four supercharges, and at order g^2 have protected scaling dimension and normalization. Here, we compute three-point functions involving these quarter-BPS operators along with half-BPS operators. The combinatorics of the problem is rather involved, and we consider the following special cases: (1) correlators < half half BPS > of two half-BPS primaries with an arbitrary chiral primary; (2) certain classes of < half quarter quarter > and < quarter quarter quarter > three-point functions; (3) three-point functions involving the Delta < 8 operators found in hep-th/0109064; (4) < half quarter quarter> correlators with the special quarter-BPS operator made of single and double trace operators only. The analysis in cases (1)-(3) is valid for general N, while (4) is a large N approximation. Order g^2 corrections to all three-point functions considered in this paper are found to vanish. In the AdS/CFT correspondence, quarter-BPS chiral primaries are dual to threshold bound states of elementary supergravity excitations. We present a supergravity discussion of two- and three-point correlators involving these bound states.
description: 44 pages, Latex, eps figures, uses epsfig.sty; references added
Exciton propagation and halo formation in two-dimensional materials
Creators: name: Perea-Causin, Raul
name: Brem, Samuel
name: Rosati, Roberto
name: Jago, Roland
name: Kulig, Marvin
name: Ziegler, Jonas D.
name: Zipfel, Jonas
name: Chernikov, Alexey
name: Malic, Ermin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The interplay of optics, dynamics and transport is crucial for the design of novel optoelectronic devices, such as photodetectors and solar cells. In this context, transition metal dichalcogenides (TMDs) have received much attention. Here, strongly bound excitons dominate optical excitation, carrier dynamics and diffusion processes. While the first two have been intensively studied, there is a lack of fundamental understanding of non-equilibrium phenomena associated with exciton transport that is of central importance e.g. for high efficiency light harvesting. In this work, we provide microscopic insights into the interplay of exciton propagation and many-particle interactions in TMDs. Based on a fully quantum mechanical approach and in excellent agreement with photoluminescence measurements, we show that Auger recombination and emission of hot phonons act as a heating mechanism giving rise to strong spatial gradients in excitonic temperature. The resulting thermal drift leads to an unconventional exciton diffusion characterized by spatial exciton halos.
Fissidens rivularis Schimp.
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Fissidentales
Fissidentaceae
Fissidens
Fissidens rivularis

description: Fissidens rivularis (Spruce) Schimp.
RECORDS. — Feldmann (1947), Jelenc (1955a): Kabylie de Collo, vallée de l’oued Ramèche, 600- 800 m. Very rare.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 77, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Quantum information in base n defined by state partitions
Creators: name: Svozil, Karl
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We define a "nit" as a radix n measure of quantum information which is based on state partitions associated with the outcomes of n-ary observables and which, for n>2, is fundamentally irreducible to a binary coding. Properties of this measure for entangled many-particle states are discussed. k particles specify k nits in such a way that k mutually commuting measurements of observables with n possible outcomes are sufficient to determine the information.
description: 4 pages, 2 figures
Eigenoscillations of the Differentially Rotating Sun: I. 22-year, 4000-year, and quasi-biennial modes
Creators: name: Dzhalilov, N. S.
name: Staude, J.
name: Oraevsky, V. N.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Retrograde waves with frequencies much lower than the rotation frequency become trapped in the solar radiative interior. The eigenfunctions of the compressible, nonadiabatic, Rossby-like modes ($ε$-mechanism and radiative losses taken into account) are obtained by an asymptotic method assuming a very small latitudinal gradient of rotation, without an arbitrary choice of other free parameters. An integral dispersion relation for the complex eigenfrequencies is derived as a solution of the boundary value problem. The discovered resonant cavity modes (called R-modes) are fundamentally different from the known r-modes: their frequencies are functions of the solar interior structure, and the reason for their existence is not related to geometrical effects. The most unstable R-modes are those with periods of 1--3 yr, 18--30 yr, and 1500--20000 yrs; these three separate period ranges are known from solar and geophysical data. The growing times of those modes which are unstable with respect to the $ε$-mechanism are $\approx 10^2, 10^3,$ and $10^5$ years, respectively. The amplitudes of the R-modes are growing towards the center of the Sun. We discuss some prospects to develop the theory of R-modes as a driver of the dynamics in the convective zone which could explain, e.g., observed short-term fluctuations of rotation, a control of the solar magnetic cycle, and abrupt changes of terrestrial climate in the past.
description: 17 pages, 6 figures, To appear in Astronomy and Astrophysics