cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Deformable model acquisition and validation
Creators: name: Lang, Jochen
Publisher: name: University of British Columbia
Year: 2009

description: Objects deform in response to contact forces exerted on them. The deformation depends on material properties, the geometry of the object and external forces. This thesis develops a robotic system for automatically acquiring observations of a deforming object and for estimating a model of the deformation from these observations. Models of deformable objects are in wide-spread use in simulation, computer graphics and virtual reality. Deformation, impact and fitting simulation aid manufacturing. In computer graphics deformable objects are designed and animated. Medical simulators incorporating physical models of organs and tissue are a significant emerging virtual reality application. The material properties of deformable models are often assigned based on mechanical (and other) testing of material samples. Material samples do not represent commonly simulated objects well if there is a high variability in the material of the object, e.g., due to mixed material, unknown material, or material with imperfections. In contrast to material sampling, this thesis develops a method to scan the deformation behavior of a complete object. The scanning is analogous to the scanning of the visual appearance of an object. The scan captures the individual response of a complete object to contact forces. The result of the scan is not only a deformable model but also data which serves to validate the model. This validation step gives a qualitative and sometimes quantitative assessment of the suitability of a model.
Unstable particle production near threshold with effective theory methods
Creators: name: Zanderighi, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We illustrate the use of effective theory methods to describe resonant unstable particles. We outline the necessary ingredients to describe $W$-pair production close to threshold in $e^-e^+$ collisions.
description: Invited talk at 2005 International Linear Collider Physics and Detector Workshop and Second ILC Accelerator Workshop, Snowmass, CO (Snowmass05), 3 pages
Radio emission from negative lightning leader steps reveals inner meter-scale structure
Creators: name: Hare, B. M.
name: Scholten, O.
name: Dwyer, J.
name: Ebert, U.
name: Nijdam, S.
name: Bonardi, A.
name: Buitink, S.
name: Corstanje, A.
name: Falcke, H.
name: Huege, T.
name: Hörandel, J. R.
name: Krampah, G. K.
name: Mitra, P.
name: Mulrey, K.
name: Neijzen, B.
name: Nelles, A.
name: Pandya, H.
name: Rachen, J. P.
name: Rossetto, L.
name: Trinh, T. N. G.
name: ter Veen, S.
name: Winchen, T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We use the Low Frequency ARray (LOFAR) to probe the dynamics of the stepping process of negatively-charged plasma channels (negative leaders) in a lightning discharge. We observe that at each step of a leader, multiple pulses of VHF (30~--~80 MHz) radiation are emitted in short-duration bursts ($<10\ μ$s). This is evidence for streamer formation during corona flashes that occur with each leader step, which has not been observed before in natural lightning and it could help explain X-ray emission from lightning leaders, as X-rays from laboratory leaders tend to be associated with corona flashes. Surprisingly we find that the stepping length is very similar to what was observed near the ground, however with a stepping time that is considerably larger, which as yet is not understood. These results will help to improve lightning propagation models, and eventually lightning protection models.
description: 5 pages
A Note on a Family of Proximal Gradient Methods for Quasi-static Incremental Problems in Elastoplastic Analysis
Creators: name: Kanno, Yoshihiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Accelerated proximal gradient methods have recently been developed for solving quasi-static incremental problems of elastoplastic analysis with some different yield criteria. It has been demonstrated through numerical experiments that these methods can outperform conventional optimization-based approaches in computational plasticity. However, in literature these algorithms are described individually for specific yield criteria, and hence there exists no guide for application of the algorithms to other yield criteria. This short paper presents a general form of algorithm design, independent of specific forms of yield criteria, that unifies the existing proximal gradient methods. Clear interpretation is also given to each step of the presented general algorithm so that each update rule is linked to the underlying physical laws in terms of mechanical quantities.
Superstability of adjointable mappings on Hilbert $C^*$-modules
Creators: name: Frank, Michael
name: Gavruta, Pasc
name: Moslehian, Mohammad Sal
Publisher: name: arXiv
Year: 2005
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L08 (Primary), 47B48, 39B82, 39B52, 46L05 (Secondary)

description: We define the notion of $φ$-perturbation of a densely defined adjointable mapping and prove that any such mapping $f$ between Hilbert ${\mathcal A}$-modules over a fixed $C^*$-algebra ${\mathcal A}$ with densely defined corresponding mapping $g$ is ${\mathcal A}$-linear and adjointable in the classical sense with adjoint $g$. If both $f$ and $g$ are everywhere defined then they are bounded. Our work concerns with the concept of Hyers--Ulam--Rassias stability originated from the Th.M. Rassias' stability theorem that appeared in his paper [On the stability of the linear mapping in Banach spaces, Proc. Amer. Math. Soc. 72 (1978), 297--300]. We also indicate interesting complementary results in the case where the Hilbert $C^*$-modules admit non-adjointable $C^*$-linear mappings.
description: 8 pages, minor revision, to appear in Appl. Anal. Disc. Math
INTEGRAÇÃO DE TECNOLOGIAS NA AGRICULTURA FAMILIAR
Creators: name: ANDRADE, E. E. S
name: NASCIMENTO, F. J. M.
Publisher: name: Zenodo
Year: 2024
Subjects: INTEGRAÇÃO DE TECNOLOGIAS
AGRICULTURA
TECNOLOGIAS

description: O resumo simplificado, intitulado "Integração de Tecnologias na Agricultura Familiar", foi submetido ao III Congresso Brasileiro Online de Ensino, Pesquisa e Extensão em 2024, organizado pela Sociedade Brasileira de Eventos Científicos (SOBREC). O autor principal, Everson Eduardo da Silva Andrade, cuja referência de citação é "Andrade, E. E. S.", apresentou o trabalho com o objetivo de divulgar conhecimento e incentivar o pensamento científico sobre a Integração de Tecnologias na Agricultura Familiar. O co-autor, Fernando Jeferson de Macedo Nascimento, contribuiu para a pesquisa, sendo sua referência de citação "Nascimento, F. J. M.". O evento busca conectar a divulgação científica, o ensino e a extensão acadêmica, visando atingir um amplo público interessado nessa temática.
Testing nuclear forces by polarization transfer coefficients in d(\vec p, \vec p)d and d(\vec p,\vec d)p reactions at E^{lab}_p = 22.7 MeV
Creators: name: Witala, H.
name: Golak, J.
name: Skibinski, R.
name: Glockle, W.
name: Nogga, A.
name: Epelbaum, E.
name: Kamada, H.
name: Kievsky, A.
name: Viviani, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The proton to proton polarization transfer coefficients K_x^{x'}, K_y^{y'}, K_z^{x'} and the proton to deuteron polarization transfer coefficients K_x^{x'}, K_y^{y'}, K_z^{x'}, K_x^{y'z'}, K_y^{z'z'}, K_z^{y'z'}, K_y^{x'z'} and K_y^{x'x'-y'y'} have been measured in d(\vec p, \vec p)d and d(\vec p, \vec d)p reactions at E^{lab}_p = 22.7 MeV, respectively. The data have been compared to predictions of modern nuclear forces obtained by solving the three-nucleon Faddeev equations in momentum space. Realistic (semi) phenomenological nucleon-nucleon potentials combined with model three-nucleon forces and modern chiral nuclear forces have been used. The AV18, CD Bonn, Nijm I and II nucleon-nucleon interactions have been applied alone or combined with the Tucson-Melbourne 99 three-nucleon force, adjusted separately for each potential to reproduce the triton binding energy. For the AV18 potential also the Urbana IX three-nucleon force have been used. In addition chiral NN potentials in the next-to-leading-order and chiral two- and three-nucleon forces in the next-to-next-to-leading-order have been applied. Only when three-nucleon forces are included a satisfactory description of all data results. For the chiral approach the restriction to the forces in the next-to-leading order is insufficient. Only when going over to the next-to-next-to-leading order one gets a satisfactory description of the data, similar to the one obtained with the (semi) phenomenological forces.
description: 16 pages, 9 figures
Electronic Transport in DNA
Creators: name: Klotsa, Daphne
name: Roemer, Rudolf A.
name: Turner, Matthew S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Genomics (q-bio.GN)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We study the electronic properties of DNA by way of a tight-binding model applied to four particular DNA sequences. The charge transfer properties are presented in terms of localisation lengths, crudely speaking the length over which electrons travel. Various types of disorder, including random potentials, are employed to account for different real environments. We have performed calculations on poly(dG)-poly(dC), telomeric-DNA, random-ATGC DNA and lambda-DNA. We find that random and lambda-DNA have localisation lengths allowing for electron motion among a few dozen base pairs only. A novel enhancement of localisation lengths is observed at particular energies for an increasing binary backbone disorder. We comment on the possible biological relevance of sequence dependent charge transfer in DNA.
description: 12 pages RevTeX4 with 17 figures, submitted to Biophysical Journal
A scheme for the teleportation of multiqubit quantum information via the control of many agents in a network
Creators: name: Yang, Chui-Ping
name: Han, Siyuan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a new scheme for teleporting multiqubit quantum information from a sender to a distant receiver via the control of many agents in a network. We show that the receiver can successfully restore the original state of each qubit as long as all the agents cooperate. However, it is remarkable that for certain type of teleported states, the receiver can not gain any amplitude information even if one agent does not collaborate. In addition, our analysis shows that for general input states of each message qubit, the average fidelity for the output states, when even one agent does not take action, is the same as that for the previous proposals.
description: 6 pages
Identification and Characterization of Novel Corona and Associated Respiratory Viruses in Aerosols
Creators: name: Habibi, Nazima
name: Uddin, Saif
name: Al-Salameen, Fadila
name: Amad, Sami Al
name: Kumar, Vinod
name: Mohd Otaibi
Publisher: name: figshare
Year: 2021
Subjects: subject: 60506 Virology
subject: FOS: Biological sciences
subject: Molecular Biology

description: Final Report
Low Threshold Bound State in the Continuum Lasers in Hybrid Lattice Resonance Metasurfaces
Creators: name: Yang, Jhen-Hong
name: Maksimov, Dmitrii N.
name: Huang, Zhen-Ting
name: Pankin, Pavel S.
name: Timofeev, Ivan V.
name: Hong, Kuo-Bing
name: Li, Heng
name: Chen, Jia-Wei
name: Hsu, Chu-Yuan
name: Liu, Yi-Yun
name: Lu, Tien-Chang
name: Lin, Tzy-Rong
name: Yang, Chan-Shan
name: Chen, Kuo-Ping
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Bound states in the continuum (BICs) have attracted much attention in recent years due to the infinite quality factor (Q-factor) resonance and extremely localized field. In this study, BICs have been demonstrated by dielectric metasurfaces with hybrid surface lattice resonance (SLR) in the experiment. By breaking the symmetry of geometry, SLR can be easily switched between BICs and quasi-BICs. Comparing with literature, switching between BICs and quasi-BICs is usually accompanied by wavelength shift. Here, a design rule is proposed to prevent the wavelength shift when the Q-factor is changing. Also, such a design also makes subsequent identification of the laser threshold more credible. Due to the high Q-factor, low threshold laser is one of the intuitive applications of BICs. Utilize the high localized ability of BICs, low threshold BICs laser can be achieved by the dielectric metasurface immersed with Rhodamine 6G. Interestingly, due to the high Q-factor resonance of BICs, the laser signals and images can be observed in almost transparent samples. Not only the BICs laser is demonstrated in the experiment, but also the mechanism of BICs is deeply analyzed. This study can help readers better understand this novel feature of BICs, and provide the way for engineer BICs metasurfaces. The device can provide various applications, including laser, optical sensing, non-linear optics enhancement, and single-photon source.
description: 18 pages, 4 figures
Digital Health Platform Ecosystem and Patient-centred Care Enhancement: Healthcare Stakeholders' Perceptions of Heavyweight and Lightweight IT in Innovation, Adoption, and Scaling
Creators: name: TEHRANI, ALI DAEMI
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 420302
subject: Digital health
classificationCode: 420308
subject: Health informatics and information systems

description: This research discusses findings from a study of the perceptions of primary healthcare stakeholders’ in enhancing patient-centred care through a digital health platform ecosystem. Using critical realism as a philosophical paradigm, the study involves an embedded case study of four departments at Cabrini Health, a private healthcare organisation in Victoria, Australia. Findings show that the platformisation of the digital health infrastructure improved generativity, with interrelated relationships between innovation, adoption, and scaling, resulting in enhancement in patient-centricity. In this respect, the research identified governance of the digital health platform as an obstacle. This research adds to the limited literature on digital health platform ecosystems and the enhancement of patient-centred care. The transferability of knowledge from this project contributes to researchers, healthcare practitioners, and policymakers seeking to enhance patient-centred care via the platformisation of their digital health infrastructure.
UntitIdentification and Characterization of Novel Corona and Associated Respiratory Viruses in Aerosols
Creators: name: Habibi, Nazima
name: Uddin, Saif
name: Al-Salameen, Fadila
name: Amad, Sami Al
name: Kumar, Vinod
name: Mohd Otaibi
Publisher: name: figshare
Year: 2021
Subjects: subject: 60506 Virology
subject: FOS: Biological sciences
subject: Molecular Biology

description: Final Report
Investigation of in-plane anisotropy of c-axis magnetoresistance for BiCh2-based layered superconductor NdO0.7F0.3BiS2
Creators: name: Hoshi, Kazuhisa
name: Sudo, Kenta
name: Goto, Yosuke
name: Kimata, Motoi
name: Mizuguchi, Yoshikazu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have investigated the in-plane anisotropy of the c-axis magnetoresistance (MR) in both superconducting and normal states of single crystals of NdO0.7F0.3BiS2 under in-plane magnetic fields. In the superconducting states of NdO0.7F0.3BiS2, four-fold-symmetric in-plane anisotropy of the c-axis MR was observed below the superconducting transition temperature. Since the crystal structure of NdO0.7F0.3BiS2 is tetragonal, the rotational symmetry in the superconducting state is preserved in the present compound. This result is clearly different from the previous report observed in LaO0.5F0.5BiSSe single crystals, where the in-plane MR in the superconducting state shows two-fold symmetry. On the other hand, in the normal states of NdO0.7F0.3BiS2, two-fold symmetric MR with a small amplitude was observed. The possible origin of the two-fold-symmetric behavior was discussed with the presence of local structural disorder in the conducting plane of BiCh2-based compounds.
description: 11 pages, 3 figures, 1 supplemental figure
Monte Carlo simulations of H2 formation on stochastically heated grains
Creators: name: Cuppen, H. M.
name: Morata, O.
name: Herbst, Eric
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Continuous-time, random-walk Monte Carlo simulations of H2 formation on grains have been performed for surfaces that are stochastically heated by photons. We have assumed diffuse cloud conditions and used a variety of grains of varying roughness and size based on olivine. The simulations were performed at different optical depths. We confirmed that small grains (r <= 0.02 micron) have low modal temperatures with strong fluctuations, which have a large effect on the efficiency of the formation of molecular hydrogen. The grain size distribution highly favours small grains and therefore H2 formation on these particles makes a large contribution to the overall formation rate for all but the roughest surfaces. We find that at A_V=0 only the roughest surfaces can produce the required amount of molecular hydrogen, but by A_V=1, smoother surfaces are possible alternatives. Use of a larger value for the evaporation energy of atomic hydrogen, but one still consistent with experiment, allows smoother surfaces to produce more H2.
description: MNRAS LaTeX, 10 pages, 11 eps-figures to be published in MNRAS
title: The archaeological potential of windblown sand and its impacts on prehistoric settlements and landscapes in the Orkney Islands, Scotland
Creators: name: Gal, Emily Louise
Publisher: name: University of St Andrews
Year: 2019

description: This thesis comprises an investigation into the nature, chronology, and significance of prehistoric windblown sand deposition on archaeological sites in the Orkney Islands, Scotland. One of the most visible and frequently-encountered forms of evidence for dynamic coastal processes which took place over the last four millennia are horizons of calcareous (shell) and mineral (quartz and feldspar) sands, which were deposited in coastal landscapes and settlements by wind and wave dynamics. Around 20% of the Scottish coastline is made up of sand-based features, with the dune area comprising some 48,000ha (Dargie and Duncan 1999, 143). Such coastal zones were densely settled in the prehistoric period. As monitoring of the modern coastline for changes affecting known archaeological sites continues, deposits of windblown sand - often interleaved with material evidence for human occupation – are becoming frequently recognised in the archaeological record. One coastal region which has felt the impacts of this coastal process (and continues to do so), is the Orkney archipelago, located off the northern coast of Mainland Scotland. It is this group of islands which form the geographical focus of this thesis. Previous archaeological interpretations of this important coastal process have been concerned with the development of chronologies of deposition in an attempt to tie the deposition of windblown sand to narratives of climatic deterioration. Such approaches fail to recognise the broader social significance of these windblown sand deposits, and how they were encountered by prehistorical inhabitants of the coastline. This thesis synthesises all known occurrences of windblown sand on archaeological sites in Orkney, and suggests additional ways in which their socio-economic significance can be realised.
Symposium--CONTEMPORARY AGRICULTURAL ECONOMICS IN AUSTRALIA
Creators: name: Williams, Donald Birtall
name: Williams, Donald Birtall
Publisher: name: Unknown
Year: 1957
Subjects: Teaching/Communication/Extension/Profession

description: This review of the present state of agricultural economics concentrates on some aspects which appear to be of particular importance or interest. In no sense is it an attempt to discuss the whole field of agricultural economics, nor to review the scope of work in the Bureau of Agricultural Economics. I have concentrated on aspects which seem to me to have given agricultural economics in Australia a separate identity within the broader fields covered by general economics. In the final section of this paper, rather than on the selected aspects discussed in more detail in the main part of it, the scope of agricultural economics, as I see it, is set out.
RESOURCE PRODUCTIVITIES AND PRODUCTION FUNCTIONS
Creators: name: Jarrett, Frank G.
name: Jarrett, Frank G.
Publisher: name: Unknown
Year: 1957
Subjects: Production Economics

description: This paper is mainly intended to provide a vehicle for discussion of recent research in measuring resource productivity using what has come to be known in agricultural economics as the Cobb-Douglas approach. I have attempted to draw together most of the points that have been raised by others together with some comments. The organisation of the discussion has been to give a brief historical background to this type of work and then to consider the economic and statistical difficulties involved in fitting empirical production functions. Finally, the use of the results of such work in assisting policy decisions both by the community and the individual farmer is considered.
Financial planners who view their work as a calling – what it means, how it develops and why it becomes a double-edged sword.
Creators: name: CHEAH, SHARON PEK YOKE
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 350710
subject: Organisational behaviour

description: How can we overcome the drudgery of work? To answer this, research findings have pointed to viewing one’s work as a calling, i.e., finding the meaning and purpose in work, which allows people to enjoy greater job satisfaction and well-being. However, we do not completely understand why some people have a calling while others do not. Moreover, prior studies have ignored how non-Western cultural values influence this experience. This thesis sheds light on those questions by examining financial planners who used to view work merely for financial reasons, then go on to experience fulfillment and purpose, and subsequently a calling at work.
Coherent Behavior and Nonmagnetic Impurity Effects of the Spin Disordered State in NiGa$_2$S$_4$
Creators: name: Nambu, Yusuke
name: Nakatsuji, Satoru
name: Maeno, Yoshiteru
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nonmagnetic impurity effects of the spin disordered state in the triangular antiferromagnet NiGa$_2$S$_4$ was studied through magnetic and thermal measurements for Ni$_{1-x}$Zn$_x$Ga$_2$S$_4$ (0.0\le x\le 0.3). Only 1 % substitution is enough to strongly suppress the coherence observed in the spin disordered state. However, the suppression is not complete and the robust feature of the T^2 dependent specific heat and its scaling behavior with the Weiss temperature indicate the existence of a coherent Nambu-Goldstone mode. Absence of either conventional magnetic order or bulk spin freezing suggests a novel symmetry breaking of the ground state.
description: 4 pages, 4 figures
Leptolaena Thouars
Creators: name: Schatz, George E.
name: Lowry Ii, Porter P.
name: Wolf, Anne-Elizabeth
Publisher: name: Zenodo
Year: 2001
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Huerteales
Sarcolaenaceae
Leptolaena

description: LEPTOLAENA Thouars Hist. Vég. Isles Austral. Afriq.: 41, pl. 11 (1805). TYPE. — Leptolaena multiflora Thouars.
description: Published as part of Schatz, George E., Lowry Ii, Porter P. & Wolf, Anne-Elizabeth, 2001, Endemic families of Madagascar. VII. A synoptic revision of Leptolaena Thouars sensu stricto (Sarcolaenaceae), pp. 171-189 in Adansonia (3) (3) 23 (2) on page 173, DOI: 10.5281/zenodo.4605057
Eight-manifolds with G-structure in eleven dimensional supergravity
Creators: name: Mac Conamhna, Oisin A. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend the refined G-structure classification of supersymmetric solutions of eleven dimensional supergravity. We derive necessary and sufficient conditions for the existence of an arbitrary number of Killing spinors whose common isotropy group contains a compact factor acting irreducibly in eight spatial dimensions and which embeds in $(Spin(7)\ltimes\mathbb{R}^8)\times\mathbb{R}$. We use these conditions to explicitly derive the general local bosonic solution of the Killing spinor equation admitting an N=4 SU(4) structure embedding in a $(Spin(7)\ltimes\mathbb{R}^8)\times\mathbb{R}$ structure, up to an eight-manifold of SU(4) holonomy. Subject to very mild assumptions on the form of the metric, we explicitly derive the general local bosonic solutions of the Killing spinor equation for N=6 Sp(2) structures and N=8 $SU(2)\times SU(2)$ structures embedding in a $(Spin(7)\ltimes\mathbb{R}^8)\times\mathbb{R}$ structure, again up to eight-manifolds of special holonomy. We construct several other classes of explicit solutions, including some for which the preferred local structure group defined by the Killing spinors does not correspond to any holonomy group in eleven dimensions. We also give a detailed geometrical characterisation of all supersymmetric spacetimes in eleven dimensions admitting G-structures with structure groups of the form $(G\ltimes\mathbb{R}^8)\times\mathbb{R}$.
description: 50 pages, Latex; v2, minor modifications and clarifications; integrability conditions and typos corrected; v3, 53 pages; changes in response to referee's comments, additional appendix, typos corrected. Final version to appear in Phys.Rev.D
Temporal Evolution of Lower Hybrid Waves in the Presence of Ponderomotive Density Fluctuations
Creators: name: Karney, Charles F. F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The propagation of lower hybrid waves in the presence of ponderomotive density fluctuations is considered. The problem is treated in two dimensions and, in order to be able to correctly impose the boundary conditions, the waves are allowed to evolve in time. The fields are described by i v_tau - \int v_xi dzeta + v_{zeta zeta} + |v|^2 v = 0 where v is proportional to the electric field, tau to time, and zeta and xi measure distances across and along the lower hybrid ray. The behavior of the waves is investigated numerically. If the amplitude of the waves is large enough, the spectrum of the waves broadens and their parallel wavelength becomes shorter. The assumptions made in the formulation preclude the application of these results to the lower hybrid heating experiment on Alcator-A. Nevertheless, there are indications that the physics embodied in this problem are responsible for some of the results of that experiment.
description: Plain TeX, 24 pages, 11 figures
A two-qubit engine fueled by entangling operations and local measurements
Creators: name: Bresque, Léa
name: Camati, Patrice A.
name: Rogers, Spencer
name: Murch, Kater
name: Jordan, Andrew N.
name: Auffèves, Alexia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a two-qubit engine that is powered by entangling operations and projective local quantum measurements. Energy is extracted from the detuned qubits coherently exchanging a single excitation. This engine, which uses the information and back-action of the measurement, is generalized to an N-qubit chain. We show that by gradually increasing the energy splitting along the chain, the initial low energy of the first qubit can be up-converted deterministically to an arbitrarily high energy at the last qubit by successive neighbor swap operations and local measurements. Modeling the local measurement as the entanglement of a qubit with a meter, we identify the measurement fuel as the energetic cost to erase correlations between the qubits.
description: 5 pages, 4 figures
Private Research and Public Goods: Implications of Biotechnology for Biodiversity
Creators: name: Raney, Terri
name: Pingali, Prabhu L.
name: Raney, Terri
name: Pingali, Prabhu L.
Publisher: name: Unknown
Year: 2004
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Biodiversity
subject: Biotechnology
subject: Agricultural Research
subject: Transgenic Crops
subject: Green Revolution.
subject: O13
subject: O33
subject: Q16

description: The pattern of crop genetic diversity has changed over the past two centuries with the modernization of agriculture, accelerating with the advent of the green revolution. Since the green revolution, the locus of agricultural research has shifted from the public to the private sector. The growing importance of the private sector in agricultural R&D is changing the types of crop technologies that are developed and the ways they are delivered to farmers. The spread of transgenic crops will influence crop genetic diversity, but their implications for the availability of plant genetic resources and the resilience of agricultural ecosystems are not entirely clear. Transgenic crops may increase or decrease crop genetic diversity, depending on how they are regulated and deployed. This paper explores a range of policy options to increase the likelihood that private sector R&D, particularly in the form of transgenic crops, enhances rather than erodes crop genetic diversity.
description: FAO Document Repository: http://www.fao.org/3/ae062e/ae062e00.pdf
Gea : subtitle a toolkit for gene expression analysis
Creators: name: Phan, Min (Jessica)
Publisher: name: University of British Columbia
Year: 2009

description: In recent years, relating gene expression to cancer development and treatment has received a lot of attention. The precise identification of a cancer's type and stage is often crucial to the assignment of appropriate treatment. Therefore, a central goal of the analysis of gene expression data is to identify sets of genes that can be used for the classification or diagnosis of cancer. Another important purpose of gene expression studies is to improve the understanding of cellular responses to drug treatment, to identify drug responsive genes, and to discover the potential drug targets. To achieve these goals, researchers are applying various methods of analysis to gene expression data. Unfortunately, the availability of effective analysis tools lags far behind the availability of data. In this thesis, we present the Gene Expression Analyzer (GEA) for performing cluster analysis on gene expression data. In particular, the GEA is developed to address the reality that cluster analysis is typically a multi-step process. The underlying model of the GEA provides a set of algebraic operators for manipulating the data, as well as intermediate results. Moreover, the GEA provides facilities to help the user to identify candidate genes for further clinical analysis. Last but not least, the GEA is optimized to handle the high dimensionality of gene expression data, and provides user-friendly features to help the user organize and manage intermediate analysis results.
Stopping Cooling Flows with Jets
Creators: name: Brighenti, Fabrizio
name: Mathews, William G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe 2D gasdynamical models of jets that carry mass as well as energy to the hot gas in galaxy clusters. These flows have many attractive attributes for solving the galaxy cluster cooling flow problem: Why the hot gas temperature and density profiles resemble cooling flows but show no spectral evidence of cooling to low temperatures. Using an approximate model for the cluster A1795, we show that mass-carrying jets can reduce the overall cooling rate to or below the low values implied by X-ray spectra. Biconical subrelativistic jets, described with several ad hoc parameters, are assumed to be activated when gas flows toward or cools near a central supermassive black hole. As the jets proceed out from the center they entrain more and more ambient gas. The jets lose internal pressure by expansion and are compressed by the ambient cluster gas, becoming rather difficult to observe. For a wide variety of initial jet parameters and several feedback scenarios the global cooling can be suppressed for many Gyrs while maintaining cluster temperature profiles similar to those observed. The intermittancy of the feedback generates multiple generations of X-ray cavities similar to those observed in the Perseus Cluster and elsewhere.
description: Approved for publication in the ApJ
Amperometric Measurements and Dynamic Models Reveal a Mechanism for How Zinc Alters Neurotransmitter Release
Creators: name: Ren, Lin
name: Oleinick, Alexander
name: Svir, Irina
name: Amatore, Christian
name: Ewing, Andrew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: Zinc, a suspected potentiator of learning and memory, is shown to affect exocytotic release and storage in neurotransmitter-containing vesicles. Structural and size analysis of the vesicular dense core and halo using transmission electron microscopy was combined with single-cell amperometry to study the vesicle size changes induced after zinc treatment and to compare these changes to theoretical predictions based on the concept of partial release as opposed to full quantal release. This powerful combined analytical approach establishes the existence of an unsuspected strong link between vesicle structure and exocytotic dynamics which can be used to explain the mechanism of regulation of synaptic plasticity by Zn 2+ through modulation of neurotransmitter release.
Will Buying Tropical Forest Carbon Benefit The Poor? Evidence from Costa Rica
Creators: name: Kerr, Suzi
name: Lipper, Leslie
name: Pfaff, Alexander S.P.
name: Cavatassi, Romina
name: Davis, Benjamin
name: Hendy, Joanna
name: Sanchez, Arturo
name: Kerr, Suzi
name: Lipper, Leslie
name: Pfaff, Alexander S.P.
name: Cavatassi, Romina
name: Davis, Benjamin
name: Hendy, Joanna
name: Sanchez, Arturo
Publisher: name: Unknown
Year: 2004
Subjects: subject: Resource /Energy Economics and Policy
subject: Land Use
subject: Deforestation
subject: Poverty
subject: Climate Change
subject: Development
subject: Costa Rica.

description: We review claims about the potential for carbon markets that link both payments for carbon services and poverty levels to ongoing rates of tropical deforestation. We then examine these effects empirically for Costa Rica during the 20th century using an econometric approach that addresses the irreversibilities in deforestation. We find significant effects of the relative returns to forest on deforestation rates. Thus, carbon payments would induce conservation and also carbon sequestration, and if land users were poor could conserve forest while addressing rural poverty. However, we find poorer areas are less responsive to returns. This and transaction costs could lead carbon payments policies not to be focused upon the poor. Other practical considerations may also dampen an understandable enthusiasm for service-based payments addressing both environment and inequality. Nonetheless, as the poor live in areas with more forest, they may benefit most from payments.
description: FAO Document Repository: http://www.fao.org/3/ae402e/ae402e00.pdf
An analysis of the Determinants of Deep Economic Recessions
Creators: name: LI, LUYANG
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 380107
subject: Financial economics
classificationCode: 380110
subject: International economics

description: The two most recent macroeconomic downturns have been exceptional by historical standards both in terms of magnitude and in terms of geographical average. The objective of this thesis is to analyze the factors that trigger extreme contractions in economic activity while also investigating how these downturns propagate across international boundaries.
This thesis enhances understanding of extreme economic events and their determinants, equipping policymakers with insights to assess future economic risk and mitigate cross- country spillover effects.
Mixed correlation functions in the 2-matrix model, and the Bethe ansatz
Creators: name: Eynard, B.
name: Orantin, N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using loop equation technics, we compute all mixed traces correlation functions of the 2-matrix model to large N leading order. The solution turns out to be a sort of Bethe Ansatz, i.e. all correlation functions can be decomposed on products of 2-point functions. We also find that, when the correlation functions are written collectively as a matrix, the loop equations are equivalent to commutation relations.
description: 38 pages, LaTex, 24 figures. misprints corrected, references added, a technical part moved to appendix
Poverty, Livestock and Household Typologies in Nepal
Creators: name: Maltsoglou, Irini
name: Taniguchi, Kiyoshi
name: Maltsoglou, Irini
name: Taniguchi, Kiyoshi
Publisher: name: Unknown
Year: 2004
Subjects: subject: Food Security and Poverty
subject: Nepal
subject: Livestock
subject: Household Typologies
subject: Poverty Reduction
subject: Rural Livelihoods and Income Sources.

description: Agriculture and livestock are key components of the livelihoods of the poor. Livestock make a substantial contribution to household livelihood's and currently sustain the livelihoods of an estimated 700 million rural poor in developing countries. In Nepal, poverty levels are extremely high and more than 80% of the population relies on the agriculture sector for employment and income generation. In this context, it is important to be able to understand the link between poverty and livestock and the possible impact of livestock policies on the poor. The aim of the analysis presented in this paper is twofold: firstly, to gain an in-depth understanding of the features that characterize the poor in Nepal so as to determine the role livestock plays in and for household's income and income sources; secondly, based on the findings, set up household typologies related to livestock to be used to identify household groups within the country to better target specific livestock policies In conclusion the authors find that poverty in Nepal is mainly a rural phenomenon, where households mostly own land and livestock, and are extremely dependent on agriculture for household income. Livestock is found to contribute significantly to agriculture income both in the form of home production consumed within the households and agriculture cash income. The cash component proves to be especially important for the more isolated areas in which access to cash is very limited and for the landless households. This is leads to a call for policy makers to ensure that policies targeting livestock are put in place, since this will indirectly help the large portion of rural poor in the country.
description: FAO Document Repository: http://www.fao.org/3/ae125e/ae125e00.pdf
Smolitsch, Igor, Geschichte der Russischen Kirche 1700-1917
Creators: name: Schaeder, Hildegard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 13 Nr. 3 (1964): Ökumenische Rundschau, Band 13, Heft 3
Effect of Noise on the Standard Mapping
Creators: name: Karney, Charles F. F.
name: Rechester, Alexander B.
name: White, Roscoe B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Accelerator Physics (physics.acc-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The effect of a small amount of noise on the standard mapping is considered. Whenever the standard mapping possesses accelerator modes (where the action increases approximately linearly with time), the diffusion coefficient contains a term proportional to the reciprocal of the variance of the noise term. At large values of the stochasticity parameter, the accelerator modes exhibit a universal behavior. As a result the dependence of the diffusion coefficient on the stochasticity parameter also shows some universal behavior.
description: Plain TeX, 18 pages, 4 figures
Nanoelectrodes for intracellular measurements of reactive oxygen and nitrogen species in single living cells
Creators: name: Hu, Keke
name: Liu, Yan-Ling
name: Oleinick, Alexander
name: Mirkin, Michael
name: Huang, Wei-Hua
name: Amatore, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Reactive oxygen and nitrogen species (ROS and RNS) play important roles in various physiological processes (e.g., phagocytosis) and pathological conditions (e.g., cancer). The primary ROS/RNS, viz., hydrogen peroxide, peroxynitrite ion, nitric oxide, and nitrite ion, can be oxidized at different electrode potentials and therefore detected and quantified by electroanalytical techniques. Nanometer-sized electrochemical probes are especially suitable for measuring ROS/RNS in single cells and cellular organelles. In this article, we survey recent advances in localized measurements of ROS/RNS inside single cells and discuss several methodological issues, including optimization of nanoelectrode geometry, precise positioning of an electrochemical probe inside a cell, and interpretation of electroanalytical data.
Monitoring Poverty without Consumption Data: an Application Using the Albania Panel Survey
Creators: name: Azzarri, Carlo
name: Carletto, Calogero
name: Davis, Benjamin
name: Zezza, Alberto
name: Azzarri, Carlo
name: Carletto, Calogero
name: Davis, Benjamin
name: Zezza, Alberto
Publisher: name: Unknown
Year: 2005
Subjects: subject: Food Security and Poverty
subject: Poverty
subject: Welfare
subject: Asset index
subject: Poverty measurement
subject: Poverty monitoring.

description: In developing countries poverty is generally measured with expenditure data. Such data are difficult and costly to obtain and it is generally recommended to collect them every 3-5 years. In between surveys, however, there is a clear need to provide policymakers with information for the monitoring of poverty trends. The paper reviews several such methods and compares the poverty estimates and trends resulting from their application to a panel dataset for Albania. The results are broadly consistent across methods and point to an overall improvement in welfare conditions over time, although the magnitude of the changes differs by locale, with urban areas showing a larger improvement than their rural counterparts. However, given the sensitivity of the predictions to model specification, it is worthwhile to construct alternative welfare indicators and triangulate results. Lacking a gold standard measure, the use of a suite of welfare indicators, if duly validated, could be a viable approach to monitor poverty trends; some caution should be exercised in drawing conclusions about the actual magnitudes of the changes.
description: FAO Document Repository: http://www.fao.org/3/a-ae588t.pdf
Decoloniality and Tropicality: Part Two
Creators: name: Lundberg, A
name: Regis, H
name: Chwala, GL
name: Okpadah, SO
name: Sinamai, Ashton
name: Ferrão, RB
name: Chao, S
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 4702
subject: Cultural studies
classificationCode: 4705
subject: Literary studies
classificationCode: 4410
subject: Sociology
subject: FOS: Sociology

description: The papers collected together in this special issue on the theme ‘decoloniality and tropicality’ discuss and demonstrate how we can move towards disentangling ourselves from persistent colonial epistemologies and ontologies. Engaging theories of decoloniality and postcolonialism with tropicality, the articles explore the material poetics of philosophical reverie; the 'tropical natureculture' imaginaries of sex tourism, ecotourism, and militourism; deep readings of an anthropophagic movement, ecocritical literature, and the ecoGothic; the spaces of a tropical flâneuse and diasporic vernacular architecture; and in the decoloniality of education, a historical analysis of colonial female education and a film analysis for contemporary educational praxis.
First VLTI/MIDI observations of a Be star: Alpha Ara
Creators: name: Chesneau, Olivier
name: Meilland, A.
name: Rivinius, T.
name: Stee, P.
name: Jankov, S.
name: De Souza, A. Domiciano
name: Graser, U.
name: Herbst, T.
name: Janot-Pacheco, E.
name: Koehler, R.
name: Leinert, C.
name: Morel, S.
name: Paresce, F.
name: Richichi, A.
name: Robbe-Dubois, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first VLTI/MIDI observations of the Be star Alpha Ara, showing a nearly unresolved circumstellar disk in the N band. The interferometric measurements made use of the UT1 and UT3 telescopes. The projected baselines were 102 and 74 meters with position angles of 7 degres and 55 degres, respectively. These measurements put an upper limit to the envelope size in the N band under the Uniform disk approximation of $ϕ_{\rm max}= 4\pm1.5$ mas, corresponding to 14 $R_{\star}$, assuming $R_{\star}$=4.8${\rm R}_\odot$ and the Hipparcos distance of 74pc. On the other hand the disk density must be large enough to produce the observed strong Balmer line emission. In order to estimate the possible circumstellar and stellar parameters we have used the SIMECA code developed by Stee (1995) and Stee & Bittar (2001). Optical spectra taken with the echelle instrument Heros and the ESO-50cm telescope, as well as infrared ones from the 1.6m Brazilian telescope have been used together with the MIDI spectra and visibilities. These observations put complementary constraints on the density and geometry of Alpha Ara circumstellar disk. We discuss on the potential truncation of the disk by a companion and we present spectroscopic indications of a periodic perturbation of some Balmer lines.
description: Accepted in A&A