cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bayesian Surface Warping Approach For Rectifying Geological Boundaries Using Displacement Likelihood And Evidence From Geochemical Assays
Creators: name: Leung, Raymond
name: Lowe, Alexander
name: Chlingaryan, Anna
name: Melkumyan, Arman
name: Zigman, John
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences
subject: I.3.5; G.3; J.2

description: This paper presents a Bayesian framework for manipulating mesh surfaces with the aim of improving the positional integrity of the geological boundaries that they seek to represent. The assumption is that these surfaces, created initially using sparse data, capture the global trend and provide a reasonable approximation of the stratigraphic, mineralisation and other types of boundaries for mining exploration, but they are locally inaccurate at scales typically required for grade estimation. The proposed methodology makes local spatial corrections automatically to maximise the agreement between the modelled surfaces and observed samples. Where possible, vertices on a mesh surface are moved to provide a clear delineation, for instance, between ore and waste material across the boundary based on spatial and compositional analysis; using assay measurements collected from densely spaced, geo-registered blast holes. The maximum a posteriori (MAP) solution ultimately considers the chemistry observation likelihood in a given domain. Furthermore, it is guided by an apriori spatial structure which embeds geological domain knowledge and determines the likelihood of a displacement estimate. The results demonstrate that increasing surface fidelity can significantly improve grade estimation performance based on large-scale model validation.
description: Keywords: Geochemistry-based Bayesian deformable surface (GC-BDS) model, Bayesian computation, mesh geometry, surface warping, spatial correction, displacement likelihood, geological boundaries, model integrity. 19 page article, 15 figures, 3 tables
Green's function theory for a magnetic impurity layer in a ferromagnetic Ising film with transverse field
Creators: name: Leite, R. V.
name: Morais, B. T. F.
name: Pereira, J. Milton
name: Filho, R. N. Costa
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: A Green's function formalism is used to calculate the spectrum of localized modes of an impurity layer implanted within a ferromagnetic thin film. The equations of motion for the Green's functions are determined in the framework of the Ising model in a transverse field. We show that depending on the thickness, exchange and effective field parameters, there is a ``crossover'' effect between the surface modes and impurity localized modes. For thicker films the results show that the degeneracy of the surface modes can be lifted by the presence of an impurity layer.
description: 12 pages, 5 figures
Hybrid design of MPI over SCTP
Creators: name: Tsai, Mike Yao Chen
Publisher: name: University of British Columbia
Year: 2011

description: Message Passing Interface(MPI)is a popular message passing interface for writing parallel applications. It has been designed to run over many different types of network interconnects ranging from commodity Ethernet to more specialized hardwares including: shared memory, and Remote Direct Memory Access (RDMA) devices such as InfiniBand and the recently standardized Internet Wide Area RDMA Protocol (iWARP). The API itself provides both the point-to-point and remote memory access (RMA) operations to the application. However, it is often implemented based on one kind of underlying network device, namely entirely RDMA or point-to-point. As a result, it is often not possible to provide a direct mapping from the software semantics to the underlying hardware. In this work, we propose a hybrid approach in designing MPI in which network device to use can depend on its functional requirement. This allows the MPI API to exploit the potential performance benefits of the underlying hardware more directly. Another highlight of this work is the design of the MPI middleware to be IP based in order to provide support for both cluster and wide area network environment; this can be achieved via the use of a commodity transport layer protocol, namely Stream Control Transmission Protocol (SCTP). We will demonstrate how SCTP can be used to support MPI with different kinds of network devices and to provide multirailing support from the transport layer.
Supplementary document for Two-in-One Functionality in a 28×28 β-Ga2O3 Array: Bias-Voltage Switching between Photodetection and Neuromorphic Vision - 7147995.pdf
Creators: name: Wang, Xiang
name: Li, Lingfei
name: Peng, Haoxuan
name: Wang, Yingxu
name: Zhang, Lingyun
name: Gu, Yan
name: She, Xiaobo
name: Zhang, Maolin
name: Guo, Yufeng
name: Liu, Yu
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplemental material
Microfabrics and deformation processes in magmatic veins of the Thuringian Forest, Germany
Creators: name: Neubert, Jana
name: Klauw, Sebastiaan Van Der
name: Kley, Jonas
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: The research area is located in the Ruhla-Brotterode crystalline complex in the western part of the Thuringian Forest (Germany), about 20km southsouthwest of Eisenach. The investigated outcrops occur at the eastern and western flanks of the valleys north of the villages Trusetal and Hohleborn. Deformed magmatic veins only occur in the Hohleborn area. Both areas have relative fresh outcropping rocks, due to the steep relief, former quarries and fresh road cuts. According to Obst & Katzung (2000) several periods with the formation of magmatic veins with different chemical composition occur in the Ruhla-Brotterode crystalline complex. Presumably older lamprophyric veins and younger doleritic, syenitporphyric and granitporphyric veins have been identified (Obst & Katzung 2000). Benek & Schust (1988) already pointed out that some of these magmatic veins have experienced ductile deformation. The subject of this work is the occurrence of deformed magmatic veins in the Hohleborn area. The contact to their host rocks, their petrography and their microfabrics have been investigated and related to deformation processes, which led to a better understanding of their deformation conditions within the late-to post-variscan development of the area.
description: conference
Supplementary document for Two-in-One Functionality in a 28×28 β-Ga2O3 Array: Bias-Voltage Switching between Photodetection and Neuromorphic Vision - 7226093.pdf
Creators: name: Wang, Xiang
name: Li, Lingfei
name: Peng, Haoxuan
name: Wang, Yingxu
name: Zhang, Lingyun
name: Gu, Yan
name: She, Xiaobo
name: Zhang, Maolin
name: Guo, Yufeng
name: Liu, Yu
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: supplement 1
Accretion disks around the Gibbons-Maeda-Garfinkle-Horowitz-Strominger charged black holes
Creators: name: Karimov, R. Kh.
name: Izmailov, R. N.
name: Bhattacharya, Amrita
name: Nandi, K. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It seems surprising that the emissivity properties of the accretion disk (\textit{à la} Page and Thorne) surrounding the Gibbons-Maeda-Garfinkle-Horowitz-Strominger (GMGHS) black holes of heterotic string theory have not yet been studied. To fill this gap in the literature, we study the emissivity properties of the thin accretion disks around these black holes both in the Einstein and in the string frame using the Page-Thorne model. For illustration, we choose as a toy model a stellar-sized spherically symmetric black hole and find that, while the emissivity properties do not significantly differ from those of Reissner-Nordström and Schwarzschild black holes, they remarkably differ at GMGHS extreme limits corresponding to naked singularity and wormhole at higher frequencies. These differences provide a novel way to speculatively conclude about different types of objects from the observational point of view.
description: 11 pages, 24 figures, 2 tables
Neotectonic markers in the Panafrican belt formations of Cameroon: elements of interpretation and their environmental impacts
Creators: name: Kouankap, Nono Gus D.
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: The North equatorial Panafrican Belt, whose Cameroonian formations are dated between 650 and 400 million years, and which are located in the North of the Congo Craton, is subdivided in to three major geodynamic domains: a north Cameroon domain, a central Cameroon domain and a south Cameroon domain. These major domains are generally, particularly the central domain, affected by great strikeslip faults in which the most important are the central cameroonian shear zone and the Sanaga fault. Studies that establish the order of occurrence of geological events, generally performed in these domains and particularly at Banefo area (West Cameroon) reveal markers of recent tectonics (post panafrican) that affect the granitogneissic basement...
description: conference
Kinematic 3D Retro-Deformation of Fault Blocks Picked from 3D Seismics
Creators: name: Tanner, David C.
name: Lohr, Tina
name: Krawczyk, Charlotte M.
name: Oncken, Onno
name: Endres, Heike
name: Samiee, Ramin
name: Trappe, Henning
name: Kukla, Peter A.
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: Movement on fault planes causes a large amount of smaller-scale deformation, ductile or brittle, in the area surrounding the fault. Much of this deformation is below the resolution of reflection seismics (i.e. sub-seismic, <10m displacement), but it is important to determine this deformation, since it can make up a large portion of the total bulk strain, for instance in a developing sedimentary basin. Calculation of the amount of sub-seismic strain around a fault by 3-D geometrical kinematic retro-deformation can also be used to predict the orientation and magnitude of these smaller-scale structures. However, firstly a 3-D model of the fault and its faulted horizons must be constructed at a high enough resolution to be able to preserve fault and horizon morphology with a grid spacing of less than 10 m. Secondly, the kinematics of the fault need to be determined, and thirdly a suitable deformation algorithm chosen to fit the deformation style. Then by restoring the faulted horizons to their pre-deformation state (a ‘regional’), the moved horizons can be interrogated as to the strain they underwent. Since strain is commutative, the deformation demonstrated during this retro-deformation is equivalent to that during the natural, forward deformation...
description: conference
Xerolycosa nemoralis
Creators: name: Isaia, Marco
name: Paschetta, Mauro
name: Chiarle, Alberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Xerolycosa
Xerolycosa nemoralis

description: Xerolycosa nemoralis (Westring, 1861)
NEW DATA. — Entracque: Tetti Violin, grassland with bushes, 900-1100 m, 4.VII.2012, 1♂ (collected within the PIT Summer School 2012); Valdieri: pathway to Pian del Valasco, beech forest near stream, 1500-2000 m, 11.VII-27.VIII.2009 (pitfall traps), 2♂; Pian del Valasco, Alpine pasture with rocks, 1764 m, 11.VII-27. VIII.2009 (pitfall traps), 1♂, 1♀; southern slope of Monte Bourel, Vallone della Meris, Sant’Anna di Valdieri, Alpine prairies with rocky debris, 1500-2300 m, 1-31.VIII.2011 (pitfall traps), 1♂; Vallone della Meris, Gias Prato, Alpine prairies with rocky debris, 1600 m, 27. VI.2011, 2♀; Vallone di Lorousa, beech forest near stream, 1900-2000 m, 29.VIII.2009, 1♂, 1♀; Vernante: nearby Palanfrè, grassland, 1400 m, 21.VII.2011, 8♂, 4♀ (MRSN); Palanfrè, Gias del Chiot, beech forest, 1550 m, 22. VI.2009, 1♂, 1♀ (beating tray); Vallone degli Alberghi, Gias Piamian, stream gravel, 1470 m, 1.VII.2010, 1♂; Vallone degli Alberghi, sparse wood, grassland and rock-debris, 1400-2000 m, 5. VI.2010, 1♀.
 LITERATURE. — Lambiase et al. (2007); Paschetta et al. (2013).
CHOROTYPE. — PAL.
MACROHABITAT. — Alpine pastures, Alpine prairies, broadleaved woods, shrublands, riparian habitats.
description: Published as part of Isaia, Marco, Paschetta, Mauro & Chiarle, Alberto, 2015, Annotated checklist of the spiders (Arachnida, Araneae) of the Site of Community Importance and Special Area of Conservation " Alpi Marittime " (NW Italy), pp. 57-114 in Zoosystema 37 (1) on page 88, DOI: 10.5252/z2015n1a4, http://zenodo.org/record/4577680
How stress transfer between volcanic and seismic zones affects volcanic and earthquake
Creators: name: Gudmundsson, Agust
name: Philipp, Sonja L.
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: Oceanic transform faults and ridge segments form a network where mechanical interaction is to be expected. In particular, dike emplacement in ridge segments is likely to affect earthquake activity in the adjacent transform faults through processes such as stress transfer. Similarly, strike-slip displacement across transform faults may trigger dike injections and, eventually, eruptions in the adjacent ridge segments. For obvious reasons, direct observations of the possible mechanical interaction between submarine transform zones and ridge segments at mid-ocean ridges are difficult. The subaerial seismic zones of Iceland, however, are in clear spatial connections with the adjacent volcanic zones. These zones, therefore, provide excellent opportunities to study stress transfer between volcanic and seismic zones (Gudmundsson 2000)...
description: conference
On the capability of a class of quantum sensors
Creators: name: Yu, Qi
name: Wang, Yuanlong
name: Dong, Daoyi
name: Petersen, Ian R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum sensors may provide extremely high sensitivity and precision to extract key information in a quantum or classical physical system. A fundamental question is whether a quantum sensor is capable of uniquely inferring unknown parameters in a system for a given structure of the quantum sensor and admissible measurement on the sensor. In this paper, we investigate the capability of a class of quantum sensors which consist of either a single qubit or two qubits. A quantum sensor is coupled to a spin chain system to extract information of unknown parameters in the system. With given initialisation and measurement schemes, we employ the similarity transformation approach and the Grobner basis method to prove that a single-qubit quantum sensor cannot effectively estimate the unknown parameters in the spin chain system while the two-qubit quantum sensor can. The work demonstrates that it is a feasible method to enhance the capability of quantum sensors by increasing the number of qubits in the quantum sensors for some practical applications.
description: 16 pages, 5 figures
Area preserving diffeomorphisms and Yang-Mills theory in two noncommutative dimensions
Creators: name: Bassetto, A.
name: De Pol, G.
name: Torrielli, A.
name: Vian, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present some evidence that noncommutative Yang-Mills theory in two dimensions is not invariant under area preserving diffeomorphisms, at variance with the commutative case. Still, invariance under linear unimodular maps survives, as is proven by means of a fairly general argument.
description: Talk delivered by A. Bassetto at "Workshop on Light-Cone QCD and Nonperturbative Hadron Physics 2005", Cairns, Australia, July 2005. LaTeX file espcrc2.sty, 2 figures included. Added references
Kinematics and deformation structures in a crustal-scale shear zone on Kea (W. Cyclades, Greece)
Creators: name: Voit, Klaus
name: Grasemann, Bernhard
name: Draganits, Erich
name: Edwards, Michael A.
name: Müller, Monika
name: Iglseder, Christoph
name: Petrakakis, Konstantin
name: Exner, Ulrike
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: It is generally agreed upon that the exhumation of metamorphic rocks in the Aegean is caused by post orogenic extension in the late Oligocene to early Miocene. This extension is in principle largely accommodated by low-angle crustal detachment faulting possibly resulting in the formation of metamorphic core complexes (MCC). Here, we present data from recent structural investigations on the island of Kea in the W. Cyclades, Greece. Our work focussed in the north of the island. Of the ca. 270m total structural thickness that was mapped, the entire section of rocks are highly strained. Exhumation during progressive deformation is recorded by the transition from ductile to brittle/ductile to brittle conditions. The regional characteristics and types of deformation structures vary depending on the protolith and the intensity of strain...
description: conference
Maize Yield Response to Fertilizer under Differing Agro -Ecological Conditions in Burkina Faso
Creators: name: Theriault, Veronique
name: Smale, Melinda
name: Haider, Hamza
name: Theriault, Veronique
name: Smale, Melinda
name: Haider, Hamza
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Development
subject: Burkina Fasp
subject: maize
subject: fertilizer

description: Achieving food security in Sub- Saharan Africa depends on raising the productivity of smallholder farmers, and in Burkina Faso, there is no option for enhancing crop productivity other than intensification. The soils in the Sahel and Savanna of West Africa are old, deep and poor in soil organic matter, with low capacity to retain nutrients, while this region is also the most densely populated in the continent. Yet, as in other countries of Sub-Saharan Africa, the national agricultural research system formulated fertilizer recommendations during the 1970s and 1980s, but these did not, and still do not, take differing agro-ecologies into account. The heterogeneity of agro-ecological and soil conditions has led to a diversity of farming systems and cropping patterns. This heterogeneity, along with incomplete input markets, creates highly variable economic incentives for smallholder farmers.
Improving education through dialogue and oral tradition : bridging colonization and cultural difference between Okanagan students, parents, community and non-Aboriginal school leaders
Creators: name: Edwards, Mark Macdougall
Publisher: name: University of British Columbia
Year: 2011

description: This study is a response to the inadequacy of education processes and outcomes for Aboriginal students, and particularly Okanagan students. It builds on the premise that the failure of mainstream Canadian schools to meet the educational needs of Okanagan students is a consequence of the distance between schools and community created by colonization and cultural difference. This study proposed to find ways to bridge this distance. It takes its initial insight from a process in which Okanagan students, families, and Elders successfully connected with non-Aboriginal educators. From this process emerged the recognition of the importance of understanding, relationships, and communication processes for bridging distance. This historic process further induced the development of a theory based upon conceptions of dialogue—Gadamer (2002), Buber (1970), and Freire (2000)—and Aboriginal oral traditions—as theorized by Archibald (1997), Sterling (1997), Lightning (1992), Armstrong (1996), and Hart (1997). The study's purposes were two-fold: use a dialogic process to determine how to improve understanding, relationship, and communication between Okanagan students, families, community and non-Aboriginal school leaders; and enact and test the induced theory by implementing it as research method. Thirty-five volunteers, including Okanagan students, parents, educators, Aboriginal educators, and non-Aboriginal educators, participated in two interview-conversations followed by conversations for feedback on representations of their meanings in subsequent study drafts. The study enabled remarkable conversations and a concomitant growth of understanding and relationships. The enacted theory worked, and was augmented by significant discoveries regarding shared emancipatory purpose and participant agency resulting in the revised PURC-A framework. Participants' perspectives on improving understanding, relationships, and communication processes included deeper understanding of Okanagan culture, history, and tradition, greater knowledge of the situations of Okanagan students and families, and commitment to the self-work necessary to become aware of the prejudices that constitute one's consciousness. Respect and trust were found essential. Many suggestions for improving the education of Okanagan students emerged. With courage, sincerity, and passion, participants in this study make public silenced criticisms, perspectives, and dreams. Their voices—this study—constitute a provocative and generative moment in the on-going transformative conversation that will improve education for Okanagan students.
Vesubia jugorum
Creators: name: Isaia, Marco
name: Paschetta, Mauro
name: Chiarle, Alberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Vesubia
Vesubia jugorum

description: Vesubia jugorum (Simon, 1881)
(Fig. 14)
NEW DATA. — Valdieri: nearby Lago Soprano della Sella, Alpine scree, 2300 m, 27. VI.2011, 1♀; slopes of Monte Bourel, rocky debris, 2360 m, 2.VIII.2011, 2♂; surroundings of Lago Sottano di Valscura, Alpine scree, 2300 m, 8.VII.2011, 1♀; Vallone Assedras, Rifugio Remondino, Alpine scree, 2400 m, 6.VIII.2009, 2♂, 1♀; Vernante: Monte Chamoussier, Vallone degli Alberghi, high Alpine prairies with scattered rocks, 2478 m, 1.VII.2010, 1♀.
 LITERATURE. — Tongiorgi (1969); Maurer & Thaler (1988); Isaia et al. (2007).
CHOROTYPE. — ALSW.
MACROHABITAT. — Rocky lands.
description: Published as part of Isaia, Marco, Paschetta, Mauro & Chiarle, Alberto, 2015, Annotated checklist of the spiders (Arachnida, Araneae) of the Site of Community Importance and Special Area of Conservation " Alpi Marittime " (NW Italy), pp. 57-114 in Zoosystema 37 (1) on page 87, DOI: 10.5252/z2015n1a4, http://zenodo.org/record/4577680
Origin and Large Enhancement of Large Spin Hall Angle in Weyl Semimetals LaAl$X$ ($X$=Si, Ge)
Creators: name: Ng, Truman
name: Luo, Yongzheng
name: Yuan, Jiaren
name: Wu, Yihong
name: Yang, Hyunsoo
name: Shen, Lei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the origin of the strong spin Hall effect (SHE) in a recently discovered family of Weyl semimetals, LaAl$X$ ($X$=Si, Ge) via a first-principles approach with maximally localized Wannier functions. We show that the strong intrinsic SHE in LaAl$X$ originates from the multiple slight anticrossings of nodal lines and points near $E_F$ due to their high mirror symmetry and large spin-orbit interaction. It is further found that both electrical and thermal means can enhance the spin Hall conductivity ($σ_{SH}$). However, the former also increases the electrical conductivity ($σ_{c}$), while the latter decreases it. As a result, the independent tuning of $σ_{SH}$ and $σ_{c}$ by thermal means can enhance the spin Hall angle (proportional to $\frac{σ_{SH}}{σ_{c}}$), a figure of merit of charge-to-spin current interconversion of spin-orbit torque devices. The underlying physics of such independent changes of the spin Hall and electrical conductivity by thermal means is revealed through the band-resolved and $k$-resolved spin Berry curvature. Our finding offers a new way in the search of high SHA materials for room-temperature spin-orbitronics applications.
description: 21 pages, 6 figures
title: A public health management model for acute chemical incidents in Wales
Creators: name: Bowen, Huw James
Publisher: name: The Open University
Year: 1999

description: The price of industrial progress is the potential for exposure of an increasingly informed public to chemical hazards in the environment. Of particular concern are acute exposures to chemical incidents, where problematic health risk assessments have highlighted the lack of expertise and resources available to support public health professionals in Wales responsible for protecting the health of populations. A systematic literature review of chemical incident databases, public health surveillance systems and major chemical incidents worldwide was used to guide the development of the first active, multi-agency community-based public health surveillance system for acute chemical incidents to be undertaken in Europe. A total of 642 acute chemical incidents were reported in Wales from all sources over a three year period. Of the 270 incidents reported by the primary source, chemical spills were the most frequently reported type of incident (28%) and operational industrial sites the most common location (25%). Of the estimated 238,000 people exposed, 528 reported symptoms in a total of 57 incidents. A single chemical was implicated in 86% of the incidents. Shortfalls were identified in the current expertise and resources available to public health professionals in Wales, leading to the development of a public health management model for acute chemical incidents. Model development took place in the context of United Kingdom - wide initiatives and involved the conduct of structured interviews with 41 organisations with interests in the field. The model selected for Wales was implemented on 1 February 1997 and comprised three levels of operation: (a) accountability for the protection of public health vested in health authorities at the local level; (b) a subscription-based front-line advisory and support unit to those authorities; (c) and a centrally funded national co-ordinating centre to provide the necessary evidence-base through programmes of surveillance, training, and emergency planning.
Quantum mechanics on non commutative spaces and squeezed states: a functional approach
Creators: name: Lubo, Musongela
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We review here the quantum mechanics of some noncommutative theories in which no state saturates simultaneously all the non trivial Heisenberg uncertainty relations. We show how the difference of structure between the Poisson brackets and the commutators in these theories generically leads to a harmonic oscillator whose positions and momenta mean values are not strictly equal to the ones predicted by classical mechanics. This raises the question of the nature of quasi classical states in these models. We propose an extension based on a variational principle. The action considered is the sum of the absolute values of the expressions associated to the non trivial Heisenberg uncertainty relations. We first verify that our proposal works in the usual theory i.e we recover the known Gaussian functions. Besides them, we find other states which can be expressed as products of Gaussians with specific hyper geometrics. We illustrate our construction in two models defined on a four dimensional phase space: a model endowed with a minimal length uncertainty and the non commutative plane. Our proposal leads to second order partial differential equations. We find analytical solutions in specific cases. We briefly discuss how our proposal may be applied to the fuzzy sphere and analyze its shortcomings.
description: 15 pages revtex. The title has been modified,the paper shortened and misprints have been corrected. Version to appear in JHEP
Food System Transformation and Market Evolutions: An Analysis of the Rise of Large-Scale Grain Trading in Sub-Saharan Africa
Creators: name: Sitko, Nicholas J.
name: Jayne, T.S.
name: Burke, William J.
name: Muyanga, Milu
name: Sitko, Nicholas J.
name: Jayne, T.S.
name: Burke, William J.
name: Muyanga, Milu
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Development
subject: Sub-Saharan Africa
subject: Grain trading
subject: food system transformation

description: Ongoing transformations of agri-food systems in Sub-Saharan Africa (SSA) are garnering considerable attention from policy-makers, researchers, and development partners. While a growing body of literature has examined transformations occurring within the farm production, processing and retail segments of the food systems, there has been surprisingly little attention to the so-called middle segments—trading and wholesaling. Beneficial changes in African grain markets hold considerable potential to improve livelihoods in the region, because grain-marketing costs typically account fo r 50-60% of the price paid for staple foods by African consumers (Jayne et al. 2010). This lack of empirical attention, particularly for staple cereals, is an important blind spot in our knowledge of recent transformations of these food systems.
Natural variation further increases resilience of sorghum bred for chronically drought-prone environments
Creators: name: Dong, Hongxu
name: Birhan, Techale
name: Abajebel, Nezif
name: Wakjira, Misganu
name: Mitiku, Tesfaye
name: Lemke, Cornelia
name: Vadez, Vincent
name: Paterson, Andrew H
name: Bantte, Kassahun
Publisher: name: Zenodo
Year: 2022
Subjects: African Sahel
QTL
drought
food security
Genetic variation
Genomic prediction
Sorghum

description: Moisture stress is one of the major constraints for crop production in African Sahel. Here, we explore the potential to use natural genetic variation to build on the inherent drought tolerance of an elite sorghum cultivar (Teshale) bred for Ethiopian conditions including chronic drought, evaluating a backcross nested-association mapping population using 12 diverse founder lines crossed with Teshale under three drought-prone environments in Ethiopia. All twelve populations averaged higher head exsertion and lower leaf senescence than the recurrent parent in the two highest-stress environments, reflecting new drought resilience mechanisms from the donors. 154 QTLs were detected for eight drought responsive traits – the validity of these were supported in that 113 (73.4%) overlapped with QTLs previously detected for the same traits, concentrated in regions previously associated with 'stay-green' traits. Allele effects show that some favorable alleles are already present in the Ethiopian cultivar, however the exotic donors offer rich scope for increasing drought resilience. Using model-selected SNPs associated with eight traits in this study and three in a companion study, phenotypic prediction accuracies for grain yield were equivalent to genome-wide SNPs and were significantly better than random SNPs, indicating that these studied traits are predictive of sorghum grain yield.
Computational universality of fungal sandpile automata
Creators: name: Goles, Eric
name: Tsompanas, Michail-Antisthenis
name: Adamatzky, Andrew
name: Tegelaar, Martin
name: Wosten, Han A. B.
name: Martinez, Genaro J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Emerging Technologies (cs.ET)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Hyphae within the mycelia of the ascomycetous fungi are compartmentalised by septa. Each septum has a pore that allows for inter-compartmental and inter-hyphal streaming of cytosol and even organelles. The compartments, however, have special organelles, Woronin bodies, that can plug the pores. When the pores are blocked, no flow of cytoplasm takes place. Inspired by the controllable compartmentalisation within the mycelium of the ascomycetous fungi we designed two-dimensional fungal automata. A fungal automaton is a cellular automaton where communication between neighbouring cells can be blocked on demand. We demonstrate computational universality of the fungal automata by implementing sandpile cellular automata circuits there. We reduce the Monotone Circuit Value Problem to the Fungal Automaton Prediction Problem. We construct families of wires, cross-overs and gates to prove that the fungal automata are P-complete.
Geochemische Klassifikation und Sm-Nd Isotopensystematik proterozoischer Metasedimente des Baltischen Schildes (Västervik Region, SESchweden)
Creators: name: Fischer, Mario
name: Hansen, Bent T.
name: Kleinhanns, Ilka C.
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: Die Västervik Region liegt an einer Haupt-Terran-Grenze im Baltischen Schild. Im NE schließen sich die Einheiten des Südsvecofennischen Vulkanitgürtels mit Altern >1,85Ga an, im SW folgen die Granitoide des Transskandinavischen Magmatitgürtles (TMZ) mit Altern <1,85Ga. Die Metasedimente der Västervik Formation bilden die stratigraphisch älteste Einheit der Västervik Region. Ihre Stellung in Bezug auf die svecofennischen Metasedimente des Bothnischen Beckens ist noch unklar. Sie können nach ihren mineralogischen Paragenesen in vier Gruppen klassifiziert werden: reine Quarzite, glimmerführende Quarzite, Glimmerquarzite und quarzitische Gneise. Vermutlich zeitgleich mit der Intrusion der großvolumigen Granitoidmagmen ab 1.85 Ga wurde die Västervik Formation amphibolitfaziell überprägt. Dies führte innerhalb der Metasedimente zur Bildung von Cordierit, Sillimanit und Andalusit sowie akzessorischem Granat. Der Beginn der Sedimentation ist begrenzt durch das Vorkommen detritischer Zirkone mit Altern ab 1.87Ga. Etwa 75% der gemessenen detritische Zirkone zeigt eine Altersgruppierung von 1,8 bis 2,1 Ga, die restlichen 25% zeigen archaische U/Pb-Alter von 2,8 bis 3,0 Ga (Claesson et al. 1993, Sultan et al. 2005). Die Nd-Isotopensignaturen der Proben zeigen eine sehr homogene Mischung und Schüttung der Sedimente mit subparallelem Verlauf der Nd- Entwicklungslinien und einem sehr engen TDM (Nd) Altersspektrum von 2,2 bis 2,4Ga. Diese Ergebnisse deuten auf ein konstantes Mischungsverhältnis von proterozoischen und archaischen Anteilen hin...
description: conference
Genuine collective flow from Lee-Yang zeroes
Creators: name: Bhalerao, R. S.
name: Borghini, N.
name: Ollitrault, J. -Y.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We propose to use the theory of phase transitions of Lee and Yang as a practical tool to analyze long-range correlations in a finite-size system. We apply it to the analysis of anisotropic flow in nucleus-nucleus collisions, and show that this method is more reliable than any other used so far.
description: 5 pages, 3 eps figures, RevTeX. v2: overall presentation modified
SUPPORT TO E - PAYMENT PLATFORM FOR LOCAL TAXES
Creators: name: ASPIRES Team
name: ASPIRES Team
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Development
subject: Tanzania
subject: tax

description: Local Government Authorities (LGAs) have historically administered their taxes using a paper based system. This system lacks transparency and leaves room for poor monitoring of tax records by LGAs. As a result, key information such as type of tax, commodity concerned if the tax is the produce cess, location of payment, and amount charged has not been easily available.
Sum rules and short-range correlations in nuclear matter at finite temperature
Creators: name: Frick, T.
name: Müther, H.
name: Polls, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The nucleon spectral function in nuclear matter fulfills an energy weighted sum rule. Comparing two different realistic potential, these sum rules are studied for Green's functions that are derived self-consistently within the $T$ matrix approximation at finite temperature.
description: 7 pages, 4 figures
Financial Weather Derivatives for Corn Production in Northeastern China: Modelling the underlying Weather Index
Creators: name: Sun, Baojing
name: Sun, Baojing
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: pricing weather options
subject: weather-based derivatives
subject: stochastic process and econometric modeling
subject: growing degree days
subject: agricultural finance

description: The focus in this study is on estimating the underlying weather index for pricing financial derivatives to hedge weather risks in crop production. Different index estimation methods for growing degree days (GDDs) are compared. In particular, daily average temperatures for deriving GDDs are simulated using an econometric model and a stochastic process that uses three methods to estimate the mean-reversion parameter. Finally, the historical approach based on a five-year moving average of GDDs is compared with the econometric and stochastic models. Results indicate that econometric model provides the best fit, followed by the the historical average method and then the stochastic process with a high mean reversion parameter. Premiums from the econometric model with sine function and historical average approaches are closer to those based on realized weather values compared with the stochastic approach. Therefore, the econometric model with sine function and the historical average approach provide better pricing estimates than other methods.
Gefügecharakterisierung von Calcitmyloniten und Marmoren bezüglich senkrecht zueinander stehender Faltenteilstrukturen, Alpi Apuane, Italien
Creators: name: Pfaar, Rüdiger
name: Leiss, Bernd
name: Molli, Giancarlo
name: Walter, Jens M.
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: Im nördlichen Teil des Appenin in Italien ist der metamorphe Komplex der Alpi Apuane in Form eines tektonischen Fensters sehr gut aufgeschlosssen. Die metamorphen Gesteine der Alpi Apuane — Metakarbonate, Kiesel- und Karbonatschiefer sowie Phyllite — sind aufgrund der Kollision der korsischsardischen Mikroplatte mit der italienischen Halbinsel im mm bis km- Maßstab verfaltet worden. Im zentralen Teil der Alpi Apuane biegt das generelle N–S Streichen der Faltenstrukturen in eine E–W Richtung um. Faltenstrukturen mit senkrecht zueinander stehenden Faltenachsen sind charakteristisches Strukturmerkmal u.a. ‘Metamorpher Kernkomplexe’ und Schlüssel zum Verständnis von Deformationsgeschichte und mechanismen. Die Entwicklung dieser Strukturen wird kontrovers diskutiert...
description: conference
Questioning the spatial origin of complex organic molecules in young protostars with the CALYPSO survey
Creators: name: Belloche, A.
name: Maury, A. J.
name: Maret, S.
name: Anderl, S.
name: Bacmann, A.
name: André, Ph.
name: Bontemps, S.
name: Cabrit, S.
name: Codella, C.
name: Gaudel, M.
name: Gueth, F.
name: Lefèvre, C.
name: Lefloch, B.
name: Podio, L.
name: Testi, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Complex organic molecules (COMs) have been detected in a few Class 0 protostars but their origin is not well understood. Going beyond studies of individual objects, we want to investigate the origin of COMs in young protostars on a statistical basis. We use the CALYPSO survey performed with the IRAM PdBI to search for COMs at high angular resolution in a sample of 26 solar-type protostars, including 22 Class 0 and four Class I objects. Methanol is detected in 12 sources and tentatively in one source, which represents half of the sample. Eight sources (30%) have detections of at least three COMs. We find a strong chemical differentiation in multiple systems with five systems having one component with at least three COMs detected but the other component devoid of COM emission. The internal luminosity is found to be the source parameter impacting the most the COM chemical composition of the sources, while there is no obvious correlation between the detection of COM emission and that of a disk-like structure. A canonical hot-corino origin may explain the COM emission in four sources, an accretion-shock origin in two or possibly three sources, and an outflow origin in three sources. The CALYPSO sources with COM detections can be classified into three groups on the basis of the abundances of oxygen-bearing molecules, cyanides, and CHO-bearing molecules. These chemical groups correlate neither with the COM origin scenarii, nor with the evolutionary status of the sources if we take the ratio of envelope mass to internal luminosity as an evolutionary tracer. We find strong correlations between molecules that are a priori not related chemically (for instance methanol and methyl cyanide), implying that the existence of a correlation does not imply a chemical link. [abridged]
description: Accepted for publication in Astronomy and Astrophysics
Dynamical friction in flattened systems: A numerical test of Binney's approach
Creators: name: Penarrubia, Jorge
name: Just, Andreas
name: Kroupa, Pavel
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We carry out a set of self-consistent N-body calculations to investigate how important the velocity anisotropy in non-spherical dark-matter haloes is for dynamical friction. For this purpose we allow satellite galaxies to orbit within flattened and live dark-matter haloes (DMHs) with aspect-ratio q_h=0.6 and compare the resulting orbit evolution with a semi-analytic code. This code solves the equation of motion of satellites orbiting within the same DMH and implements, according to the dynamical friction model, either Chandrasekhar's formula, which does not incorporate the velocity anisotropy, or Binney's description of dynamical friction in anisotropic systems. In the numerical and the two semi-analytic models the satellites are given different initial orbital inclinations and orbital eccentricities. We find that Binney's approach successfully describes the overall satellite decay and orbital inclination decrease for the whole set of orbits, with an averaged discrepancy of less than 4 per cent in orbital radius during the first 3 orbits. If Chandrasekhar's expression is used instead, the discrepancy increases to 20 per cent and no inclination decrease can be observed. Binney's treatment therefore appears to provide a significantly improved treatment of dynamical friction in anisotropic systems.
description: Status: Accepted. 11 pages, 9 figures
Testing Thermo-acoustic Sound Generation in Water with Proton and Laser Beams
Creators: name: Graf, K.
name: Anton, G.
name: Hoessl, J.
name: Kappes, A.
name: Karg, T.
name: Katz, U.
name: Lahmann, R.
name: Naumann, C.
name: Salomon, K.
name: Stegmann, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Experiments were performed at a proton accelerator and an infrared laser acility to investigate the sound generation caused by the energy deposition of pulsed particle and laser beams in water. The beams with an energy range of 1 PeV to 400 PeV per proton beam spill and up to 10 EeV for the laser pulse were dumped into a water volume and the resulting acoustic signals were recorded with pressure sensitive sensors. Measurements were performed at varying pulse energies, sensor positions, beam diameters and temperatures. The data is well described by simulations based on the thermo-acoustic model. This implies that the primary mechanism for sound generation by the energy deposition of particles propagating in water is the local heating of the media giving rise to an expansion or contraction of the medium resulting in a pressure pulse with bipolar shape. A possible application of this effect would be the acoustical detection of neutrinos with energies greater than 1 EeV.
description: 5 pages, 2 figures, to appear in the proceedings of the 1st International ARENA Workshop, May 17-19th, 2005, DESY Zeuthen
Tegenaria silvestris
Creators: name: Isaia, Marco
name: Paschetta, Mauro
name: Chiarle, Alberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Agelenidae
Tegenaria
Tegenaria silvestris

description: Tegenaria silvestris (L. Koch, 1872)
 NEW DATA. — Entracque: Gias degli Isterpis, Vallone Gesso della Barra, Alpine prairies with rocky debris, 1368 m, 23. V.2010, 1♀; Valdieri: nearby Rifugio Livio Bianco, Alpine prairies with rocky debris, 1900 m, 30.X.2011, 1♂; Vernante: Palanfrè, beech forest, 1450 m, 9.IX.2011, 1♀ (MRSN); same locality, 1500 m, 9.IX.2011, 1♀ (MRSN); same locality, 11.VIII.2011, 1♀ (MRSN); same locality, 13.X.2011, 2♂ (MRSN); Palanfrè, Gias del Chiot, beech forest, 1550 m, 22. VI.2009, 2♀ (beating tray); same locality, 29. VI.2007, 1♂, leg. K. Wolf-Schwenninger & H. Schwenninger; Palanfrè, Gias della Luia, Alpine pasture, 1600 m, 3.VII.2010, 1♂, leg. B. Rizzioli; Vallone degli Alberghi, sparse wood,grassland and rock-debris, 1400-2000 m, 5. VI.2010, 1♀.
 LITERATURE. — Brignoli (1975, 1977, 1985); Arnò & Lana (2005); Isaia et al. (2011); Paschetta et al. (2013).
CHOROTYPE. — EUR.
MACROHABITAT. — Alpine grasslands, Alpine pastures, Alpine prairies, broadleaved woods, caves.
description: Published as part of Isaia, Marco, Paschetta, Mauro & Chiarle, Alberto, 2015, Annotated checklist of the spiders (Arachnida, Araneae) of the Site of Community Importance and Special Area of Conservation " Alpi Marittime " (NW Italy), pp. 57-114 in Zoosystema 37 (1) on page 90, DOI: 10.5252/z2015n1a4, http://zenodo.org/record/4577680
Homology supported in Lagrangian submanifolds in mirror quintic threefolds
Creators: name: Garcia, Daniel López
Publisher: name: arXiv
Year: 2020
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: In this note we study homological cycles in the mirror quintic Calabi-Yau threefold which can be realized by special Lagrangian submanifolds. We have used Picard-Lefschetz theory to establish the monodromy action and to study the orbit of Lagrangian vanishing cycles. For many prime numbers $p$ we can compute the orbit modulo $p$. We conjecture that the orbit in homology with coefficients in $\mathbb{Z}$ can be determined by these orbits with coefficients in $\mathbb{Z}_p$.
description: 14 pages
Eo-Alpine imbrication of Middle Austroalpine units in the Gurktal Alps, Carinthia — questioning the existence of the Upper Austroalpine Murau Nappe
Creators: name: Laukamp, Carsten
name: Angerer, Thomas
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: Structural analysis of Paleozoic Middle and Upper Austroalpine (MAA, UAA) units of the Gurktal Nappe Complex (GNC) in combination with electron microprobe analyses of multiphase garnets reveal a complex Variscan and Alpidic tectonometamorphic evolution of the GNC. Our study is focussed on the UAA ‘Murau Nappe’ and its tectonic transition to the MAA respectively to the overlying UAA Stolzalpen Nappe. The ‘Murau Nappe’ may rather be interpreted as a major zone of imbricate thrust slices of the underlying and overlying units than a distinct nappe. The results of our study lead to a reinterpretation of the ‘Murau Nappe’ as a major shear zone generated during the Eo-Alpine thrusting of the Stolzalpen Nappe over the MAA. Concerning the central GNC we conclude, that the genetic term ‘Murau Nappe’ for the lower UAA unit between MAA and Stolzalpen Nappe is not valid. Instead, its reinterpretation as a major shear zone (‘Murau shear zone’), genetically belonging to the MAA, generated during Eo-Alpine overthrusting of the Stolzalpen Nappe, is favoured. The Mesozoic Stangalm unit is interpreted as a local sequence imbricated during the northward movement of the MAA units.
description: conference