cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Engineering Complex Kidney Structures for Disease Modelling, Drug Testing, and Studying Kidney Development
Creators: name: Brizi, Valerio
Publisher: name: The Open University
Year: 2018

description: Although existing kidney tissue engineering systems and cell-based strategies favoured significant advances in the field, they cannot reproduce the organ’s complex architecture. This prevented the use of these tissues in studying kidney development realistically, modelling diseases, and establishing therapeutic approaches.

 To fill these gaps, we devised a 3D engineering system for rapid generation of custom-made geometrically predefined kidney units that more faithfully resemble their counterparts in vivo.

 Combining 3D printing and PDMS prototyping, we fabricated differently sized and shaped scaffolds into which MDCK cells were seeded and cultured under tubulogenic conditions. Cells grew and self-assembled into branched tubules with single lumen delimited by a polarised monolayered epithelium, exhibiting kidney-specific functions.

 To model polycystic kidney disease (PKD), we pharmacologically induced cyst formation within engineered tubules. Next, we tested and quantified different compounds’ effect on cyst regression, identifying new potential pharmacological treatment; we showed that 2-deoxy-D-glucose is more effective than other compounds and discovered that berberine possesses high therapeutic potential for PKD treatment.

 Optimising the protocol and using different human iPSC lines, we successfully engineered functional human ureteric bud (UB)-like tubules capable of recapitulating early steps of UB morphogenesis. Exploiting these developmental capacities, we used tubules to identify a novel growth factor combination that induces budding events in a way comparable to mouse embryonic kidneys and that may therefore be involved in human UB development. Observing a marked reduction of ramified buds in tubules derived from a patient with heterozygous PAX2 mutation affected by focal segmental glomerulosclerosis, we speculated that such developmental disorder might have contributed to the patient’s condition.

 Overall, these findings document that our innovative and robust technology for controlled tubule engineering provides a valuable and reliable platform for kidney disease modelling, drug discovery and developmental studies, and may lay the groundwork for creating anatomically correct kidney tissue in vitro.
Incomplete factorization preconditioners for least squares and linear and quadratic programming
Creators: name: Sirovljevic, Jelena
Publisher: name: University of British Columbia
Year: 2011

description: Many algorithms for optimization are based on solving a sequence of symmetric indefinite linear systems. These systems are often large and sparse, and the main approaches to solving them are based on direct factorization or iterative Krylovbased methods. In this thesis, we explore how incomplete sparse factorizations can be used as preconditioners for the special case of quasi-definite linear systems that arise in regularized linear and quadratic programming, and the case of least-squares reformulations of these systems. We describe two types of incomplete factorizations for use as preconditioners. The first is based on an incomplete Cholesky-like factorization. The second is based on an incomplete Householder QR factorization. Our approximate factorizations allow the user to prescribe the amount of fill-in, and therefore have predictable storage requirements. We use these incomplete factorizations as preconditioners for SYMMLQ and LSQR, respectively, and present numerical results for matrices that arise within an interior-point context.
Effective field theory for deformed odd-mass nuclei
Creators: name: Papenbrock, T.
name: Weidenmüller, H. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We develop an effective field theory (EFT) for deformed odd-mass nuclei. These are described as an axially symmetric core to which a nucleon is coupled. In the coordinate system fixed to the core the nucleon is subject to an axially symmetric potential. Power counting is based on the separation of scales between low-lying rotations and higher-lying states of the core. In leading order, core and nucleon are coupled by universal derivative terms. These comprise a covariant derivative and gauge potentials which account for Coriolis forces and relate to Berry-phase phenomena. At leading order, the EFT combines the particle-rotor and Nilsson models. We work out the EFT up to next-to-leading order and illustrate the results in $^{239}$Pu and $^{187}$Os. At leading order, odd-mass nuclei with rotational band heads that are close in energy and differ by one unit of angular momentum are triaxially deformed. For band heads that are well separated in energy, triaxiality becomes a subleading effect. The EFT developed in this paper presents a model-independent approach to the particle-rotor system that is capable of systematic improvement.
description: 24 pages, 6 figures; discussion amplified in several places and one figure added; accepted for publication in Physical Review C
Guten App-Etit Eine selbst entwickelte Koch-App zur Unterstützung der Selbständigkeit bei Menschen mit einer geistigen Behinderung
Creators: name: Stamm, Anke
Publisher: name: Zenodo
Year: 2016
Subjects: Sonderpädagogik
Geistige Behinderung
App
Masterarbeit

description: Tablets und Smartphones gehören an den Schulen für Menschen mit einer geistigen Behinderung zunehmend zum Alltag. Die rasant voranschreitende technologische Entwicklung und der damit verbundene Wandel der Medien macht die Auseinandersetzung mit der Technik und ihren Auswirkungen zu einer Notwendigkeit. Tablets können darüber hinaus mit der richtigen App als vielseitiges Hilfmittel verwendet werden. In dieser Entwicklungsarbeit wird eine App für das iPad selber konzipiert und programmiert. Die Rezept-App soll die Selbständigkeit der Schüler im Lernfeld Kochen unterstützen. Durch die Auseinandersetzung mit dem technischen Hintergrund – der Programmierung – werden die Möglichkeiten und Grenzen von Apps im heilpädagogischen Bereich erfahrbar. Stärken und Schwächen des Einsatzes eines Tablets im Unterrichten von Menschen mit einer geistigen Behinderung werden aufgezeigt.
Geometric secret sharing in a model of Hawking radiation
Creators: name: Balasubramanian, Vijay
name: Kar, Arjun
name: Parrikar, Onkar
name: Sárosi, Gábor
name: Ugajin, Tomonori
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a black hole in three dimensional AdS space entangled with an auxiliary radiation system. We model the microstates of the black hole in terms of a field theory living on an end of the world brane behind the horizon, and allow this field theory to itself have a holographic dual geometry. This geometry is also a black hole since entanglement of the microstates with the radiation leaves them in a mixed state. This "inception black hole" can be purified by entanglement through a wormhole with an auxiliary system which is naturally identified with the external radiation, giving a realization of the ER=EPR scenario. In this context, we propose an extension of the Ryu-Takayanagi (RT) formula, in which extremal surfaces computing entanglement entropy are allowed to pass through the brane into its dual geometry. This new rule reproduces the Page curve for evaporating black holes, consistently with the recently proposed "island formula". We then separate the radiation system into pieces. Our extended RT rule shows that the entanglement wedge of the union of radiation subsystems covers the black hole interior at late times, but the union of entanglement wedges of the subsystems may not. This result points to a secret sharing scheme in Hawking radiation wherein reconstruction of certain regions in the interior is impossible with any subsystem of the radiation, but possible with all of it.
description: 37+12 pages, 22 figures
Approaching single-photon pulses
Creators: name: Gulla, Jan
name: Skaar, Johannes
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Single-photon pulses cannot be generated on demand, due to incompatible requirements of positive frequencies and positive times. Resulting states therefore contain small probabilities for multiphotons. We derive upper and lower bounds for the maximum fidelity of realizable states that approximate single-photon pulses. The bounds have implications for ultrafast optics; the maximum fidelity is low for pulses with few cycles or close to the onset, but increases rapidly as the pulse envelope varies more slowly. We also demonstrate strictly localized states that are close to single photons.
Some Thoughts on Energy Conditions and Wormholes
Creators: name: Roman, Thomas A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This essay reviews some of the recent progress in the area of energy conditions and wormholes. Most of the discussion centers on the subject of ``quantum inequality'' restrictions on negative energy. These are bounds on the magnitude and duration of negative energy which put rather severe constraints on its possible macroscopic effects. Such effects might include the construction of wormholes and warp drives for faster-than-light travel, and violations of the second law of thermodynamics. Open problems and future directions are also discussed.
description: 24 pages; to appear in the Proceedings of the Tenth Marcel Grossmann Meeting on General Relativity and Gravitation
Complete leading-order standard model corrections to quantum leptogenesis
Creators: name: Depta, Paul Frederik
name: Halsch, Andreas
name: Hütig, Janine
name: Mendizabal, Sebastian
name: Philipsen, Owe
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Thermal leptogenesis, in the framework of the standard model with three additional heavy Majorana neutrinos, provides an attractive scenario to explain the observed baryon asymmetry in the universe. It is based on the out-of-equilibrium decay of Majorana neutrinos in a thermal bath of standard model particles, which in a fully quantum field theoretical formalism is obtained by solving Kadanoff-Baym equations. So far, the leading two-loop contributions from leptons and Higgs particles are included, but not yet gauge corrections. These enter at three-loop level but, in certain kinematical regimes, require a resummation to infinite loop order for a result to leading order in the gauge coupling. In this work, we apply such a resummation to the calculation of the lepton number density. The full result for the simplest "vanilla leptogenesis" scenario is by $\mathcal{O}(1)$ increased compared to that of quantum Boltzmann equations, and for the first time permits an estimate of all theoretical uncertainties. This step completes the quantum theory of leptogenesis and forms the basis for quantitative evaluations, as well as extensions to other scenarios.
description: 30 pages, 13 figures, expanded Sec. 3.2 with additional appendix, small additions and corrections, matches published version
title: X Shape
Creators: name: Jafari Sahamieh, Hamideh
Publisher: name: TU Wien
Year: 2014
Subjects: subject: Ausstellungssystem
subject: Exhibition System

description: Der Ausstellungsraum wird als ein Ort der Präsentation und Kommunikation konzipiert und geplant. Somit ist die Planung einer Ausstellung in erster Linie eng mit dem Innendesign des Raumes verbunden. Eine der zentralen Elemente in der Objektausstellung ist "das Podest" oder "der Sockel" auf dem die Exponate platziert und zur Schau gestellt werden. Eine Neuinterpretation dieses Elements war Ziel der vorliegenden Arbeit. Es wurde versucht den herkömmlichen Charakter des Sockels neu zu definieren, ihn flexibler und vielseitiger zu gestalten. Das Endergebnis ist ein modulares System, welches in erster Linie für temporäre Ausstellungs- und Präsentationszwecke eingesetzt werden kann. Darüber hinaus kann das System für weitere Anwendungen wie bspw. als Regalsystem, Sitzgelegenheit oder Trennwand umfunktioniert werden. Begleitend zum Entwurf wurden unterschiedliche Aspekte wie Materialauswahl, Detailplanung und -ausführung mit der Erstellung eines 1:1 Prototyps untersucht. Anschliessend wurde das Endprodukt Detail- und Materialgetreu in der Modellbauwerkstatt der TU-Wien angefertigt.
description: An exhibition space is essentially intended to be used as a site of communication and presentation. Therefore, the design and conception of an exhibition is closely related to location's interior design. A key component in object exhibition is the so called podium or socle, upon which the exhibits are placed for display. A reinterpretation of this element was the aim of this study. It was attempted to redefine the conventional character of the base to achieve better flexibility and more versatility. The outcome is a modular system which can be used primarily for temporary exhibition and presentation purposes. In addition, the system can be converted and utilized in other applications such as a seat, shelf or partition. The design process was accompanied by the creation of a 1:1 prototype to analyse aspects such as material selection, construction details and manufacturing. Subsequently the final product was built with the identical level of detail and materials in the model construction workshop at TU-Wien.
Conformal Technicolor
Creators: name: Luty, Markus A.
name: Okui, Takemichi
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We point out that the flavor problem in theories with dynamical electroweak symmetry breaking can be effectively decoupled if the physics above the TeV scale is strongly conformal, and the electroweak order parameter has a scaling dimension d = 1 + epsilon with epsilon \simeq 1/few. There are many restrictions on small values of epsilon: for epsilon << 1, electroweak symmetry breaking requires a fine-tuning similar to that of the standard model; large-N conformal field theories (including those obtained from the AdS/CFT correspondence) require fine-tuning for d < 2; `walking technicolor' theories cannot have d < 2, according to gap equation analyses. However, strong small-N conformal field theories with epsilon \simeq 1/few avoid all these constraints, and can give rise to natural dynamical electroweak symmetry breaking with a top quark flavor scale of order 10^{1/epsilon} TeV, large enough to decouple flavor. Small-N theories also have an acceptably small Peskin-Takeuchi S parameter. This class of theories provides a new direction for dynamical electroweak symmetry breaking without problems from flavor or electroweak precision tests. A possible signal for these theories is a prominent scalar resonance below the TeV scale with couplings similar to a heavy standard model Higgs.
description: 26 pages + References. Slight wording changes. Version appearing in JHEP
WILLINGNESS TO PAY FOR IMPLEMENTING HACCP SYSTEMS IN CHINA’S SMALL AND MEDIUM-SIZED FOOD ENTERPRISES
Creators: name: Jin, Shaosheng
name: Guo, Haiyue
name: Mao, Feiying
name: Zhou, Lin
name: Cheng, Guangyan
name: Jin, Shaosheng
name: Guo, Haiyue
name: Mao, Feiying
name: Zhou, Lin
name: Cheng, Guangyan
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Financial Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Public Economics
subject: Contingent valuation
subject: hazard analysis and critical control point (HACCP)
subject: small and medium enterprises
subject: willingness to pay
subject: China

description: In China, a large number of small and medium-sized food enterprises (food SMEs) rarely adopt the hazard analysis and critical control points (HACCP) system, which results in a low product quality. Some local governments have encouraged food SMEs to implement HACCP systems through financial subsidies, but because of an incomplete understanding of the willingness to pay (WTP) for implementing HACCP systems in food SMEs, relevant policies have not enhanced the adoption rate of HACCP systems. Based on our questionnaire survey data of 132 food SMEs in China's Henan, Guangdong, and Zhejiang provinces, this study estimates Chinese food SMEs' WTP for implementing HACCP systems by a double bounded dichotomous choice contingent valuation method (CVM). According to the estimated results, the WTP for implementing HACCP systems under the log-logistic model is approximately 115,714 Chinese RMB (113,149 Chinese RMB for the log-normal model).
title: Cryptococcal Meningitis in The Tropics: Defining the Problem and Refining the Management
Creators: name: Beardsley, Justin
Publisher: name: The Open University
Year: 2018

description: The basis of my thesis is the CryptoDex trial, a randomized controlled trial of adjunctive dexamethasone in HIV-associated cryptococcal meningitis, in 6 countries in Southeast Asia and Africa. This trial, which demonstrated harm from dexamethasone, is presented in detail in Chapter 6. To contextualize the trial, and to get a better sense of the burden of cryptococcal meningitis in Vietnam, I estimated the burden of all the major invasive fungal infections in Vietnam. An actuarial approach to making these estimates was used, and showed that the leading fungal pathogen is likely to be Aspergillus. The CryptoDex trial was stopped early on the basis of an excess of adverse events in the intervention arm. Therefore, in chapter 7, I investigate the ethical, statistical, and logistical issues around stopping clinical trials early, and provide a detailed case study of our experience with early termination. Finally, to better understand how the harmful effects of dexamethasone were mediated, I characterized markers of immune response in the cerebrospinal fluid of the study patients and described their relationship with clinical and microbiological outcomes. Here I found that dexamethasone shifted CSF cytokine concentrations from a Th1 to a Th2 profile, and that this was associated with poorer clearance of fungi.
title: From idea to product : implementation of a mobile, interactive TV service
Creators: name: Gusterer, Manuel
Publisher: name: TU Wien
Year: 2014
Subjects: subject: interactive
subject: mobile
subject: digital
subject: tablet
subject: television

description: This thesis provides an overview of key factors involved in the successful research, development, and implementation of an interactive approach to mass broadcasting in the form of television on mobile devices. A conceptually grounded foundation is presented as the basis for a multi-purpose solution allowing for variations in practical application based on alternative contexts; this will maximize the likelihood of successful execution as the service based product evolves to commercialization. This thesis, therefore, comprehensively investigates the product development process dimensions, as well as several inherently synergistic applications in a broad variety of industries. In order to accomplish this effectively, theoretical frameworks from different functional business areas, especially marketing and information system management are integrated. A focal point from perspective of Marketing disciplines is the investigation of the business potential of such an innovative concept as well as the market research required in order to successfully define and place such a service or product. As another key point of interest, the potential product value chain is analyzed for both B2B as well as B2C models. Within the resulting constraints and boundaries, the managerial and technical considerations for such a large-scale implementation in the domain of Information Technology are worked out and described in detail. Specific emphasis is given on the choice of project management methodology and the corresponding impact on the actual product or service development.
The Search for Electroweakinos
Creators: name: Canepa, Anadi
name: Han, Tao
name: Wang, Xing
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this review, we consider a general theoretical framework for fermionic color-singlet states, including a singlet, a doublet and a triplet under the standard model SU(2)$_{\rm L}$ gauge symmetry, corresponding to the Bino, Higgsino and Wino in Supersymmetric theories, generically dubbed as "electroweakinos" for their mass eigenstates. Depending on the relations among their three mass parameters and the mixings after the electroweak symmetry breaking, this sector leads to rich phenomenology potentially accessible at the current and near-future experiments. We discuss the decay patterns of the electroweakinos and their observable signatures at colliders. We review the existing bounds on the model parameters. We summarize the current status for the comprehensive searches from the ATLAS and CMS experiments at the LHC. We comment on the prospects for future colliders. An important feature of the theory is that the lightest neutral electroweakino can be identified as a WIMP cold dark matter candidate. We take into account the existing bounds on the parameters from the dark matter direct detection experiments and discuss the complementarity for the electroweakino searches at colliders.
description: 33 pages, 13 figures. Invited review prepared for publication in the Annual Review of Nuclear and Particle Science, Volume 70 (2020)
Kaon Physics
Creators: name: Mikulec, I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The most recent progress and future prospects in kaon physics are reviewed. Main results are the first observation of the rare decays KS->pi0ee and KS->pi0mumu by NA48, new K+->pinunu event observed by E949 and new precision measurements of K0->pienu decays by KTeV, KLOE and NA48 made in an effort to resolve the slight deviation from the unitarity in the CKM matrix, involving the |Vus| coupling.
description: Invited talk at the XXIV Physics in Collisions Conference (PIC04), Boston, USA, June 2004, 19 pages, LaTeX, 3 eps figures. PSN SUNT03
Bayesian network structure learning for the uncertain experimentalist : with applications to network biology
Creators: name: Eaton, Daniel James
Publisher: name: University of British Columbia
Year: 2011

description: In this work, we address both the computational and modeling aspects of Bayesian network structure learning. Several recent algorithms can handle large networks by operating on the space of variable orderings, but for technical reasons they cannot compute many interesting structural features and require the use of a restrictive prior. We introduce a novel MCMC method that utilizes the deterministic output of the exact structure learning algorithm of Koivisto and Sood to construct a fast-mixing proposal on the space of DAGs. We show that in addition to fixing the order-space algorithms' shortcomings, our method outperforms other existing samplers on real datasets by delivering more accurate structure and higher predictive likelihoods in less compute time. Next, we discuss current models of intervention and propose a novel approach named the uncertain intervention model, whereby the targets of an intervention can be learned in parallel to the graph's causal structure. We validate our model experimentally using synthetic data generated from known ground truth. We then apply our model to two biological datasets that have been previously analyzed using Bayesian networks. On the T-cell dataset of Sachs et al. we show that the uncertain intervention model is able to better model the density of the data compared to previous techniques, while on the ALL dataset of Yeoh et al. we demonstrate that our method can be used to directly estimate the genetic effects of the disease.
A remark on rational isochronous potentials
Creators: name: Chalykh, O. A.
name: Veselov, A. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 70H12

description: We consider the rational potentials of the one-dimensional mechanical systems, which have a family of periodic solutions with the same period (isochronous potentials). We prove that up to a shift and adding a constant all such potentials have the form $U(x) = 1/2 ω^2 x^2$ or $U(x) = 1/8 ω^2 x ^2 + c^2 x^{-2}.$
description: 5 pages, contribution to a special issue of JNMP dedicated to F. Calogero, slightly revised version
Outflows, cores and magnetic field orientations in W43-MM1 as seen by ALMA
Creators: name: Arce-Tord, C.
name: Louvet, F.
name: Cortes, P. C.
name: Motte, F.
name: Hull, C. L. H.
name: Gouellec, V. J. M. Le
name: Garay, G.
name: Nony, T.
name: Didelon, P.
name: Bronfman, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It has been proposed that the magnetic field, pervasive in the ISM, plays an important role in the process of massive star formation. To better understand its impact at the pre and protostellar stages, high-angular resolution observations of polarized dust emission toward a large sample of massive dense cores are needed. To this end, we used the Atacama Large Millimeter Array in Band 6 (1.3 mm) in full polarization mode to map the polarized emission from dust grains at a physical scale of $\sim$2700 au in the massive protocluster W43-MM1. We used these data to measure the orientation of the magnetic field at the core scale. Then, we examined the relative orientations of the core-scale magnetic field, of the protostellar outflows determined from CO molecular line emission, and of the major axis of the dense cores determined from 2D Gaussian fit in the continuum emission. We found that the orientation of the dense cores is not random with respect to the magnetic field. Instead, the dense cores are compatible with being oriented 20-50$^°$ with respect to the magnetic field. The outflows could be oriented 50-70$^°$ with respect to the magnetic field, or randomly oriented with respect to the magnetic field, similar to current results in low-mass star-forming regions. In conclusion, the observed alignment of the position angle of the cores with respect to the magnetic field lines shows that the magnetic field is well coupled with the dense material; however, the 20-50$^°$ preferential orientation contradicts the predictions of the magnetically-controlled core-collapse models. The potential correlation of the outflow directions with respect to the magnetic field suggests that, in some cases, the magnetic field is strong enough to control the angular momentum distribution from the core scale down to the inner part of the circumstellar disks where outflows are triggered.
description: Accepted by A&A, 8 pages, 4 figures
Statistics of noise-driven coupled nonlinear oscillators: applications to systems with Kerr nonlinearity
Creators: name: Prilepsky, J. E.
name: Derevyanko, S. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present exact analytical results for the statistics of nonlinear coupled oscillators under the influence of additive white noise. We suggest a perturbative approach for analysing the statistics of such systems under the action of a deterministic perturbation, based on the exact expressions for probability density functions for noise-driven oscillators. Using our perturbation technique we show that our results can be applied to studying the optical signal propagation in noisy fibres at (nearly) zero dispersion as well as to weakly nonlinear lattice models with additive noise. The approach proposed can account for a wide spectrum of physically meaningful perturbations and is applicable to the case of large noise strength.
description: 29 pages, no figures, submitted to Physica D
TECHNICAL EFFICIENCY AND THE TECHNOLOGY GAP IN WETLAND RICE FARMING IN INDONESIA: A METAFRONTIER ANALYSIS
Creators: name: Junaedi, Mohammad
name: Daryanto, Heny Kuswanti Suwarsinah
name: Sinaga, Bonar Marulitua
name: Hartoyo, Sri
name: Junaedi, Mohammad
name: Daryanto, Heny Kuswanti Suwarsinah
name: Sinaga, Bonar Marulitua
name: Hartoyo, Sri
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Production Economics
subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Efficiency
subject: metafrontier
subject: technology gap
subject: wetland rice farming

description: Diversity in the characteristics between regions is why different kinds of technology are used in wetland rice farming in Indonesia. These differences lead to a technology gap which then makes it nearly impossible to compare the maximum production sizes (the frontiers) of each region. This study is aimed to observe the factors that affect production, efficiency, and the technology gap in wetland rice farming using the data from 4,203 wetland rice farmers in 4 regions in Indonesia which were obtained from the Cost Structure of Food Crops Production Survey 2011 conducted by the BPS-Statistics Indonesia. This study was conducted using a metafrontier analysis to prove that the efficiency level in the 4 regions could not be compared to each other. In general, all the coefficients of the production function variables were positive and significant, as expected. The size of the harvested area was the strongest factor in influencing wetland rice production. The ten socio-economic variables in this study had various effects on the inefficiency of rice farming in each region. This study also demonstrated that the use of technical efficiency measurements taken based on their respective region’s frontier would lead to biased and misguided policies; therefore, special notes are required in the analysis.
The ghost in the radiation: Robust encodings of the black hole interior
Creators: name: Kim, Isaac H.
name: Tang, Eugene
name: Preskill, John
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We reconsider the black hole firewall puzzle, emphasizing that quantum error-correction, computational complexity, and pseudorandomness are crucial concepts for understanding the black hole interior. We assume that the Hawking radiation emitted by an old black hole is pseudorandom, meaning that it cannot be distinguished from a perfectly thermal state by any efficient quantum computation acting on the radiation alone. We then infer the existence of a subspace of the radiation system which we interpret as an encoding of the black hole interior. This encoded interior is entangled with the late outgoing Hawking quanta emitted by the old black hole, and is inaccessible to computationally bounded observers who are outside the black hole. Specifically, efficient operations acting on the radiation, those with quantum computational complexity polynomial in the entropy of the remaining black hole, commute with a complete set of logical operators acting on the encoded interior, up to corrections which are exponentially small in the entropy. Thus, under our pseudorandomness assumption, the black hole interior is well protected from exterior observers as long as the remaining black hole is macroscopic. On the other hand, if the radiation is not pseudorandom, an exterior observer may be able to create a firewall by applying a polynomial-time quantum computation to the radiation.
description: 56+7 pages, 12 figures
System size stochastic resonance in a model for opinion formation
Creators: name: Tessone, Claudio J.
name: Toral, Raul
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a model for opinion formation which incorporates three basic ingredients for the evolution of the opinion held by an individual: imitation, influence of fashion and randomness. We show that in the absence of fashion, the model behaves as a bistable system with random jumps between the two stable states with a distribution of times following Kramer's law. We also demonstrate the existence of system size stochastic resonance, by which there is an optimal value for the number of individuals N for which the average opinion follows better the fashion.
description: 10 pages, to appear in Physica A
Additional file 1 of RNA-Seq and secondary metabolite analyses reveal a putative defence-transcriptome in Norway spruce (Picea abies) against needle bladder rust (Chrysomyxa rhododendri) infection
Creators: name: Trujillo-Moya, Carlos
name: Ganthaler, Andrea
name: Stöggl, Wolfgang
name: Kranner, Ilse
name: Schüler, Silvio
name: Ertl, Reinhard
name: Schlosser, Sarah
name: Jan-Peter George
name: Mayr, Stefan
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Inter-replicate correlation plots. Inter-replicate correlation of (a) sample R1 (Baseline control T1), (b) sample R4 (Control T4), (c) sample R9 (Control T9), (d) sample R21 (Control T21), (e) sample R39 (Control T39), (f) sample R4 (Infected T4), (g) sample R9 (Infected T9), (h) sample R21 (Infected T21), (i) sample R39 (Infected T39 no symptoms), (j) sample R39 (Infected T39 clear symptoms). (k) Pearson correlation coefficients.
Atom-molecule theory of broad Feshbach resonances
Creators: name: Falco, G. M.
name: Stoof, H. T. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We derive the atom-molecule theory for an atomic gas near a broad Feshbach resonance, where the energy dependence of the atom-molecule coupling becomes crucial for understanding experimental results. We show how our many-body theory incorporates the two-atom physics exactly. In particular, we calculate the magnetic moment of a two-component gas of ^{6}Li atoms for a wide range of magnetic fields near the broad Feshbach resonance at about 834 Gauss. We find excellent agreement with the experiment of Jochim et al. [Phys. Rev. Lett. 91, 240402 (2003)].
description: 4 pages, 2 figures
Double-lepton polarization asymmetries in Lambda_b -> Lambda l^+ l^- decay
Creators: name: Aliev, T. M.
name: Bashiry, V.
name: Savci, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Double-lepton polarization asymmetries in (Lambda_b -> Lambda l^+ l^-) decay are calculated using a general, model independent form of the effective Hamiltonian. The sensitivities of these asymmetries to the new Wilson coefficients are studied in detail. Furthermore, the correlations between averaged double-lepton polarization asymmetry and branching ratio are analyzed. It is shown that there exist certain regions of the new Wilson coefficients where new physics can be established by measuring the double-lepton polarization asymmetries only.
description: 26 pages, 12 figures, LaTeX formatted
NETWORKS AND INTERMEDIARIES IN SEASONAL
Creators: name: Kusadokoro, Motoi
name: Maru, Takeshi
name: Gültekin, Ufuk
name: Kusadokoro, Motoi
name: Maru, Takeshi
name: Gültekin, Ufuk
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Institutional and Behavioral Economics
subject: Labor and Human Capital
subject: Political Economy
subject: Middleman
subject: migration
subject: network
subject: seasonal labor

description: In casual labor markets, intermediaries are used in order to match employers and employees. This function is especially important when the market is imperfect and employers and employees have not formed solid networks. This paper investigates the network effects and the role of intermediaries in the seasonal agricultural labor market in the irrigated area of Adana, Turkey. The network of rural households is divided into one composed mainly of farmers and one composed mainly of seasonal agricultural workers. Our regression analyses show that the seasonal workers who do not have strong networks with farmers have difficulty finding jobs. Middlemen serve to mitigate the seasonal workers’ lack of a network and play a key role in the area’s seasonal agricultural labor market. At the same time, however, blood ties and territorial ties between middlemen and workers may cause middlemen to discriminate among seasonal workers based on their origins
Positionality-Weighted Aggregation Methods for Cumulative Voting
Creators: name: Kato, Takeshi
name: Asa, Yasuhiro
name: Owa, Misa
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Economics (econ.GN)
subject: Computers and Society (cs.CY)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: J.4
subject: 91F99

description: Respecting minority opinions is vital in solving social problems. However, minority opinions are often ignored in general majority rules. To build consensus on pluralistic values and make social choices that consider minority opinions, we propose aggregation methods that give weighting to the minority's positionality on cardinal cumulative voting. Based on quadratic and linear voting, we formulated three weighted aggregation methods that differ in the ratio of votes to cumulative points and the weighting of the minority to all members, and assuming that the distributions of votes follow normal distributions, we calculated the frequency distributions of the aggregation results. We found that minority opinions are more likely to be reflected proportionately to the average of the distribution in two of the above three methods. This implies that Sen and Gotoh's idea of considering the social position of unfortunate people on ordinal ranking in the welfare economics, was illustrated by weighting the minority's positionality on cardinal voting. In addition, it is possible to visualize the number and positionality of the minority from the analysis of the aggregation results. These results will be useful to promote mutual understanding between the majority and minority by interactively visualizing the contents of the proposed aggregation methods in the consensus-building process. With the further development of information technology, the consensus building based on big data will be necessary. We recommend the use of our proposed aggregation methods to make social choices for pluralistic values such as social, environmental, and economic.
description: 10 pages, 3 figures. Published online at http://www.redfame.com/journal/index.php/ijsss/article/view/5171
The Vector Probe in Heavy-Ion Reactions
Creators: name: Rapp, Ralf
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We review essential elements in using the $J^P=1^-$ channel as a probe for hot and dense matter as produced in (ultra-) relativistic collisions of heavy nuclei. The uniqueness of the vector channel resides in the fact that it directly couples to photons, both real and virtual (dileptons), enabling the study of thermal radiation and in-medium effects on both light ($ρ, ω, ϕ$) and heavy ($Ψ, Υ$) vector mesons. We emphasize the importance of interrelations between photons and dileptons, and characterize relevant energy/mass regimes through connections to Quark-Gluon-Plasma emission and chiral symmetry restoration. Based on critical analysis of our current understanding of data from fixed-target energies, we identify open key questions to be addressed.
description: Invited Talk at the Hot Quarks 2004 Workshop, July 18-24, 2004 (Taos Valley, NM, USA), 15 pages latex incl 14 figs and iop style files, to appear in the proceedings
Time Dependent Variational Principle with Ancillary Krylov Subspace
Creators: name: Yang, Mingru
name: White, Steven R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose an improved scheme to do the time dependent variational principle (TDVP) in finite matrix product states (MPS) for two-dimensional systems or one-dimensional systems with long range interactions. We present a method to represent the time-evolving state in a MPS with its basis enriched by state-averaging with global Krylov vectors. We show that the projection error is significantly reduced so that precise time evolution can still be obtained even if a larger time step is used. Combined with the one-site TDVP, our approach provides a way to dynamically increase the bond dimension while still preserving unitarity for real time evolution. Our method can be more accurate and exhibit slower bond dimension growth than the conventional two-site TDVP.
Why Are Neutrinos Light? -- An Alternative
Creators: name: Hall, Lawrence J.
name: Oliver, Steven J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We review the recent proposal that neutrinos are light because their masses are proportional to a low scale, f, of lepton flavor symmetry breaking. This mechanism is testable because the resulting pseudo-Goldstone bosons, of mass m_G, couple strongly with the neutrinos, affecting the acoustic oscillations during the eV era of the early universe that generate the peaks in the CMB radiation. Characteristic signals result over a very wide range of (f, m_G) because of a change in the total relativistic energy density and because the neutrinos scatter rather than free-stream. Thermodynamics allows a precise calculation of the signal, so that observations would not only confirm the late-time neutrino mass mechanism, but could also determine whether the neutrino spectrum is degenerate, inverted or hierarchical and whether the neutrinos are Dirac or Majorana. The flavor symmetries could also give light sterile states. If the masses of the sterile neutrinos turn on after the MeV era, the LSND oscillations can be explained without upsetting big bang nucleosynthesis, and, since the sterile states decay to lighter neutrinos and pseudo-Goldstones, without giving too much hot dark matter.
description: Talk given by LJH at the Fujihara Seminar on Neutrino Mass and Seesaw Mechanism held at KEK, Japan, February 2004. 11 pages, 1 figure, 3 tables
A MODEL FOR THE PALM OIL MARKET IN NIGERIA: AN ECONOMETRICS APPROACH
Creators: name: Egwuma, Henry
name: Shamsudin, Mad Nasir
name: Mohamed, Zainalabidin
name: Kamarulzaman, Nitty Hirawaty
name: Wong, Kelly Kai Seng
name: Egwuma, Henry
name: Shamsudin, Mad Nasir
name: Mohamed, Zainalabidin
name: Kamarulzaman, Nitty Hirawaty
name: Wong, Kelly Kai Seng
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: Financial Economics
subject: Marketing
subject: FOS: Economics and business
subject: Production Economics
subject: Research Methods/ Statistical Methods
subject: Palm oil
subject: production
subject: demand
subject: cointegration
subject: error-correction model
subject: speed of adjustment

description: The aim of this study is to formulate and estimate a model for the palm oil market in Nigeria with a view to identifying principal factors that shape the Nigerian palm oil industry. Four structural equation models comprising palm oil production, import demand, domestic demand and producer price have been estimated using the autoregressive distributed lag (ARDL) cointegration approach over the 1970 to 2011 period. The results reveal that significant factors that influence the Nigerian palm oil industry include the own price, technological improvements, and income level. Government expenditure on agricultural development is also an important determinant, which underscores the need for government support in agriculture. Our model provides a useful framework for analyzing the effects of changes in major exogenous variables such as income or import tariff on the production, demand, and price of palm oil.
title: Kinetochore Structural Plasticity and its Regulation in Saccharomyces cerevisiae
Creators: name: Dhatchinamoorthy, Karthik
Publisher: name: The Open University
Year: 2018

description: The kinetochore is a multi-protein complex that connects the chromosome with microtubule and pulls the chromosome during chromosome segregation. In yeast, a single kinetochore assembles on a Cse4 nucleosome and attaches to a single microtubule, making it an ideal system for studying the architecture of kinetochore-microtubule interaction, function, and regulation. The inner kinetochore assembles on the centromere and anchors the outer kinetochore that attaches to the dynamic microtubule. The interplay between the kinetochore structure and microtubule dynamics in a living cell has not been studied.

 I have used a combination of in-house developed quantitative microscopy, genetic techniques and mathematical simulation in the budding yeast, S.cerevisiae, to elucidate a novel structural transition of the kinetochore. During anaphase, the microtubule undergoes rapid depolymerization. Kinetochore tracking of microtubule during this phase is critical for chromosome segregation, but how this tracking is achieved is not well understood. A combination of FRAP and photoconversion on kinetochore proteins have revealed that the kinetochore consists of highly dynamic sub-modules and stable sub-modules. I show that microtubule dynamics significantly affect the dynamic kinetochore sub-modules but not the stable ones. Mathematical modeling of microtubule dynamics and kinetochore attachment has revealed the importance of kinetochore structural transition for microtubule attachment. In addition, I have discovered that kinetochore structural transitions are regulated by known metaphase-anaphase specific pathways.

 Scm3 is the chaperone responsible for assembling the centromeric nucleosome that contains a specific histone variant Cse4. I helped to identify and characterize a new chaperone for Cse4. I demonstrated that recombinant yCAF-1 can promote the assembly of Cse4 nucleosomes in vitro and at non-centromeric positions, causing problems for chromatin-based processes.

 In summary, my thesis work has significantly contributed to our understanding of centromere and kinetochore function in budding yeast. I speculate that many of the findings will inform our perspectives on centromere and kinetochore function in higher eukaryotes.