cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The attempted synthesis of a thiazolidinedione-containing ligand for vanadyl complexation : investigating potential synergistic insulin mimics
Creators: name: Mitchell, Devin Paul
Publisher: name: University of British Columbia
Year: 2009

description: Thiazolidinedione-containing compounds are a relatively recent class of oral hypoglycemic agents used today to treat type II diabetes mellitus. Vanadium is well known to be an effective agent for lowering blood-glucose levels. In this study, synthesis of the ligand precursors 5-[4-(3-hydroxypropoxy)benzyl]-2,4- thiazolidinedione (HPBT), 5-[4-(3-bromopropoxy)benzyl]-2,4-thiazolidinedione (BPBT), and 5-[4-(3-iodopropoxy)benzyl]-2,4-thiazolidinedione (IPBT) were accomplished at high purity in gram scale quantities. These were fully characterized by the methods mentioned below. Several synthetic pathways were examined, with varying success; 5-[4-(3-ptoluenesulfonylpropoxy) benzyl]-2,4-thiazolidinedione (TsPBT), N-BOC-5-[4-(3- hydroxypropoxy)benzyl]-2,4-thiazolidinedione (BocHPBT), N-BOC-5-[4-(3- iodopropoxy)benzyl]-2,4-thiazolidinedione (BocIPBT), and 5-[4-(3- sulfonylimidazolepropoxy)benzyl]-2,4-thiazolidinedione (ImPBT) were compounds on those pathways. 5-[4-(3-Acetyl-6-hexoxy-2-one)benzyl]-2,4-thiazolidinedione (APBT), was synthesized, but not successfully purified. The vanadium coordination complex, bis-(5-[4-(3-acetyl-6-hexoxy-2-one)benzyl]-2,4-thiazolidinedionato) oxovanadium VO(APBT)2) gave encouraging preliminary results, e.g., synthesis of the complex directly from IPBT and vanadyl acetylacetonate; however further purification of the ligand would be required to determine stability constants. The ligand precursors were characterized by ¹H NMR spectroscopy, mass spectrometry, elemental analyses, infrared spectroscopy and, in certain instances, ¹³C NMR spectroscopy and two dimensional NMR spectroscopy for HPBT and IPBT. BocHPBT was characterized as a pure compound with ¹H NMR spectroscopy. TsPBT, BocIPBT and ImPBT were not purified enough for complete characterization. LSIMS characterization of the thiazolidinedione oxovanadium(IV) complex, VO(APBT)₂, indicated that the synthetic pathway so far elucidated could ultimately be refined to yield this compound in greater purity and quantity.
New models for cold rolling: generalized slab theory and slip lines for fast predictions without finite elements
Creators: name: Erfanian, Mozhdeh
name: Brambley, Edward James
name: Flanagan, Francis
name: O'KIELY, DOIREANN
name: O'Connor, Alison
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 49
subject: Mathematical sciences

description: In this work, a new mathematical model for cold rolling processes is presented. Starting from the governing equations and assuming only a narrow roll gap aspect ratio (in effect, large rolls on a thin strip), we find a solution by introducing two length scales inherent to the problem. The solution consists of a large scale, along with small (next order) correction at a small scale. The leading-order solution depends on the large length scale and matches with slab theory. The next-order correction depends on both the large and small length scales, and reveals rapid stress and strain oscillation. These oscillations are also seen in preliminary FE simulations. The oscillations resemble the slip-line fields, and the FE simulations suggest a strong connection between these oscillations and the residual stress in the resulting strip. The modelling approach used here has potential applications for modelling many metal forming processes, just as the slip-line theory itself did, but with the distinct advantage of simplicity and quick computation.
Sample Complexity of Linear Quadratic Gaussian (LQG) Control for Output Feedback Systems
Creators: name: Zheng, Yang
name: Furieri, Luca
name: Kamgarpour, Maryam
name: Li, Na
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This paper studies a class of partially observed Linear Quadratic Gaussian (LQG) problems with unknown dynamics. We establish an end-to-end sample complexity bound on learning a robust LQG controller for open-loop stable plants. This is achieved using a robust synthesis procedure, where we first estimate a model from a single input-output trajectory of finite length, identify an H-infinity bound on the estimation error, and then design a robust controller using the estimated model and its quantified uncertainty. Our synthesis procedure leverages a recent control tool called Input-Output Parameterization (IOP) that enables robust controller design using convex optimization. For open-loop stable systems, we prove that the LQG performance degrades linearly with respect to the model estimation error using the proposed synthesis procedure. Despite the hidden states in the LQG problem, the achieved scaling matches previous results on learning Linear Quadratic Regulator (LQR) controllers with full state observations.
description: The first two authors Yang Zheng and Luca Furieri contributed equally to the results of this work
Baskets from Carmen Peebles collection
Creators: name: Klein, Carol
name: Klein, Sheldon
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2015
Subjects: subject: xaw
subject: Kawaiisu language

description: 12 digital copies of photographs dated May 27, 1982 depicting baskets from the collection of Carmen Peebles. Scanned from original prints.
DO MISSING INSTITUTIONAL ARRANGEMENTS BLOCK ENLARGEMENT OF WATER MARKETS?
Creators: name: Easter, K. William
name: Smith, Rodney B.W.
name: Easter, K. William
name: Smith, Rodney B.W.
Publisher: name: Unknown
Year: 2002
Subjects: Resource /Energy Economics and Policy

description: As we consider the potential for expanding water markets as a means to help prevent water shortages, it is clear that there is resistance to such an expansion. This resistance should not be surprising given that there are likely to be both gainers and losers from expanded water markets. This papers shows that there are a number of potential market failures when water markets are expanded and that these failures are important to different stakeholder groups. These failures result from both technical and pecuniary externalities. If markets are to expand beyond the local level, new institutional arrangements will be needed that help reduce the negative impacts of the different market failures. In the past a number of institutional arrangements have been used by different stakeholder groups to block trading. We review some of these arrangements as well as institutional arrangements that can work to promote market expansion by mitigating market failures or by compensating damaged parties.
Coarse-graining of cellular automata, emergence, and the predictability of complex systems
Creators: name: Israeli, Navot
name: Goldenfeld, Nigel
Publisher: name: arXiv
Year: 2005
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study the predictability of emergent phenomena in complex systems. Using nearest neighbor, one-dimensional Cellular Automata (CA) as an example, we show how to construct local coarse-grained descriptions of CA in all classes of Wolfram's classification. The resulting coarse-grained CA that we construct are capable of emulating the large-scale behavior of the original systems without accounting for small-scale details. Several CA that can be coarse-grained by this construction are known to be universal Turing machines; they can emulate any CA or other computing devices and are therefore undecidable. We thus show that because in practice one only seeks coarse-grained information, complex physical systems can be predictable and even decidable at some level of description. The renormalization group flows that we construct induce a hierarchy of CA rules. This hierarchy agrees well with apparent rule complexity and is therefore a good candidate for a complexity measure and a classification method. Finally we argue that the large scale dynamics of CA can be very simple, at least when measured by the Kolmogorov complexity of the large scale update rule, and moreover exhibits a novel scaling law. We show that because of this large-scale simplicity, the probability of finding a coarse-grained description of CA approaches unity as one goes to increasingly coarser scales. We interpret this large scale simplicity as a pattern formation mechanism in which large scale patterns are forced upon the system by the simplicity of the rules that govern the large scale dynamics.
description: 18 pages, 9 figures
undefined-E Mutvei 2013
Creators: name: Kröger, Björn
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda

description: Subclass Multiceratoidea Mutvei, 2013
Remarks
Herein, the classification of Pohle et al. (2022) is followed. The order Oncocerida Flower in Flower & Kummel, 1950 is rejected (but see supplementary data 1, and remarks in Methodology section), because it represents a paraphyletic group (Pohle et al. 2022). Below, families, previously classified within the Barrandeocerida or Oncocerida are listed alphabetically, without assigning them to an existing order.
description: Published as part of Kröger, Björn, 2025, The Lyckholm acme of cephalopods - Review of the late Katian (Vormsi-Pirgu regional stages) Ordovician cephalopods of Estonia, pp. 1-169 in European Journal of Taxonomy 978 on page 53, DOI: 10.5852/ejt.2025.978.2801, http://zenodo.org/record/14988376
Lienhard, Marc (hrsg.): Wiederentdeckung des Heiligen Geistes
Creators: name: Boeckler, Richard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 24 Nr. 1 (1975): Ökumenische Rundschau, Band 24, Heft 1
PUBLIC PROJECTS EVALUATION, ENVIRONMENT, AND SEN'S THEORY; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Creators: name: Casini, Leonardo
name: Bernetti, Iacopo
name: Casini, Leonardo
name: Bernetti, Iacopo
Publisher: name: Unknown
Year: 1996
Subjects: Public Economics
Research Methods/ Statistical Methods

description: The purpose of this paper is to present a methodology for analyzing public investment plans based on Sen's theory of capabilities. Specifically, we will review the methodological and application problems involved in the use of Sen's theoretical framework for assessing the environmental and intergenerational impact of long-term public investments.
Immiscible Rayleigh-Taylor turbulence using mesoscopic lattice Boltzmann algorithms
Creators: name: Tavares, Hugo S.
name: Biferale, Luca
name: Sbragaglia, Mauro
name: Mailybaev, Alexei A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We studied turbulence induced by the Rayleigh-Taylor (RT) instability for 2D immiscible two-component flows by using a multicomponent lattice Boltzmann method with a Shan-Chen pseudopotential implemented on GPUs. We compare our results with the extension to the 2D case of the phenomenological theory for immiscible 3D RT studied by Chertkov and collaborators ({\it Physical Review E 71, 055301, 2005}). Furthermore, we compared the growth of the mixing layer, typical velocity, average density profiles and enstrophy with the equivalent case but for miscible two-component fluid. Both in the miscible and immiscible cases, the expected quadratic growth of the mixing layer and the linear growth of the typical velocity are observed with close long-time asymptotic prefactors but different initial transients. In the immiscible case, the enstrophy shows a tendency to grow like $\propto t^{3/2}$, with the highest values of vorticity concentrated close to the interface. In addition, we investigate the evolution of the typical drop size and the behavior of the total length of the interface in the emulsion-like state, showing the existence of a power law behavior compatible with our phenomenological predictions. Our results can also be considered as a first validation step to extend the application of lattice Boltzmann tool to study the 3D immiscible case.
description: 25 pages, 12 figures
title: Bresinstrumentarium Sigma: Deelrapport 3. Overstromingsverschilkaarten bressen
Creators: name: Coen, Leen
name: Peeters, Patrik
Publisher: name: Flanders Hydraulics
Year: 2023

description: Title : WL Rapporten. Waterbouwkundig Laboratorium: Antwerpen.
Volume : 21_004_3
Issue :
Pagination : VII, 70
ECONOMIC REFORMS IN POLAND: IMPLICATIONS FOR AGRICULTURE
Creators: name: Hausner, Ulrich
name: Cichon, Janusz
name: Von Witzke, Harald
name: Hausner, Ulrich
name: Cichon, Janusz
name: Von Witzke, Harald
Publisher: name: Unknown
Year: 1993
Subjects: Political Economy

description: Throughout the world, agriculture has become integrated into the economy at large. Therefore, it is not possible to analyze the process of economic and political transformation of agriculture without reference to the general thrust and speed of reform (Pasour, 1992). In this paper, we will argue that Poland, like other countries in Central and Eastern Europe, faces a dilemma of economic and political reform. Further, we will discuss some of the central variables which tend to constrain the process of economic transition and recovery. Following we will first discuss some of the central effects of partial and stepwise economic reform. Second, we will analyze the pros and cons of economic shock therapy, i.e., of a rapid switch to a market economic system and its implications for institutional change. Third, we will try to shed light on some of the political economic aspects of transformation. Fourth we will discuss a number of factors constraining the speed of economic recovery. We will conclude with some remarks about the prospects for economic transition in Polish agriculture.
Quantization of Kähler manifolds
Creators: name: Chan, Kwokwai
name: Leung, Naichung Conan
name: Li, Qin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Complex Variables (math.CV)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: This is a survey on our recent works which reveal new relationships among deformation quantization, geometric quantization, Berezin-Toeplitz quantization and BV quantization on Kähler manifolds.
description: 21 pages; v2: final version. arXiv admin note: text overlap with arXiv:2008.11496
Sparse Symmetric Linear Arrays with Low Redundancy and a Contiguous Sum Co-Array
Creators: name: Rajamäki, Robin
name: Koivunen, Visa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Sparse arrays can resolve significantly more scatterers or sources than sensor by utilizing the co-array - a virtual array structure consisting of pairwise differences or sums of sensor positions. Although several sparse array configurations have been developed for passive sensing applications, far fewer active array designs exist. In active sensing, the sum co-array is typically more relevant than the difference co-array, especially when the scatterers are fully coherent. This paper proposes a general symmetric array configuration suitable for both active and passive sensing. We first derive necessary and sufficient conditions for the sum and difference co-array of this array to be contiguous. We then study two specific instances based on the Nested array and the Kløve-Mossige basis, respectively. In particular, we establish the relationship between the minimum-redundancy solutions of the two resulting symmetric array configurations, and the previously proposed Concatenated Nested Array (CNA) and Kløve Array (KA). Both the CNA and KA have closed-form expressions for the sensor positions, which means that they can be easily generated for any desired array size. The two array structures also achieve low redundancy, and a contiguous sum and difference co-array, which allows resolving vastly more scatterers or sources than sensors
description: 16 pages
Sources of Ga, In, Zr and Hf to the coastal waters of the California current system
Creators: name: Lanthier, Kira
Publisher: name: University of British Columbia
Year: 2009

description: A method developed for the determination of picomolar levels of Ga, In, Zr and Hf in seawater is used to study the sources of these hydrolysis-dominated elements to the coastal surface waters of the California Current System (CCS), focussing mainly on the Columbia River and upwelling regions along the western coast of the United States. This thesis provides the first detailed measurements of Ga, In, Zr and Hf in the CCS. A resin extraction/preconcentration step featuring Chelex-100 was used to achieve -1000- fold concentration factors. Metals were quantified by flow injection-ICP/MS following addition of a Rh internal standard. Metal recoveries for Ga, In, Zr and Hf were 89, 97, 38 and 36%, respectively. Detection limits for one liter samples were 0.24, 0.012, 6 and 0.25pmol/kg, respectively, Ga, Zr and Hf being blank-limited while In is limited by sensitivity. Although this procedure was well suited for In, the data acquired was not usable as mass-115 was not corrected for isobaric Sn interferences, which were found to be significant. Results from this study revealed that the Columbia River is a significant source of Ga, Zr and Hf to CCS surface waters, with maximum values ([Ga]:=49pM; [Zr]=86pM; fHf]=6pM) corresponding to the lowest salinity waters sampled (S=21). Ga and Zr traces were still detectable as far south as the Oregon-California border ([Ga]~30pM; [Zr]~50pM) therefore these two metals are good tracers of the Columbia River effluent. Dissolved metal/salinity plots of Ga and Zr show evidence of removal in these coastal waters, with -30 and 50%, respectively, of the dissolved Ga and Zr in the plume core (S~21) being removed in the region sampled. Estimated minimum river concentrations for Ga (150±30pM) and Zr (240±150pM) were comparable to other previously reported rivers ([Ga]=68-250pM; [Zr]=300-1834pM). Upwelling of deeper waters is also a moderate source of Ga (7-14pM), Zr (24-65pM) and Hf (0.6-1.5pM) to the background levels of the CCS ([Ga]=5-8pM; [Zr]=16-34pM; [Hf]=0.3- 0.6pM). Particularly for Ga and possibly also for Zr, concentrations in the upwelled waters were highest in areas overlying wider (>10km) continental shelves, revealing shelf sediments as a significant source of metals to these bottom waters. Zr/Hf molar ratios of all samples from this study (Zr/Hf~44±40) indicate that the previously-observed marine fractionation between these two elements (Zr/Hf~100-300) does not arise from processes originating in coastal environments.
Müller-Fahrenholz, Geiko: Heilsgeschichte zwischen Ideologie und Prophetie
Creators: name: Slenczka, Reinhard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 24 Nr. 1 (1975): Ökumenische Rundschau, Band 24, Heft 1
Testing the beamed inverse-Compton model for jet X-ray emission: velocity structure and deceleration?
Creators: name: Hardcastle, M. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: By considering a small sample of core-dominated radio-loud quasars with X-ray jets, I show, as has been argued previously by others, that the observations require bulk jet deceleration if all of the X-ray emission is to be explained using the widely adopted beamed inverse-Compton model, and argue that jets even in these powerful objects must have velocity structure in order to reconcile their radio and X-ray properties. I then argue that the deceleration model has several serious weaknesses, and discuss the viability of alternative models for the decline in X-ray/radio ratio as a function of position. Although inverse-Compton scattering from the jets is a required process and must come to dominate at high redshifts, adopting an alternative model for the X-ray emission of some nearby, well-studied objects can greatly alleviate some of the problems posed by these observations for the beamed inverse-Compton model.
description: 10 pages, 3 figures. v2 accepted by MNRAS with no changes from v1, but updated to add a citation to a recent paper
SOME SPATIAL ASPECTS OF AN EXTERNALITY: THE CASE OF LIVESTOCK PRODUCTION FACILITIES; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Creators: name: Taff, Steven J.
name: Taff, Steven J.
Publisher: name: Unknown
Year: 1996
Subjects: Livestock Production/Industries

description: In our report to the Legislature (Taff et al. 1996), we examined the interrelationships among residential property sales and nearby feedlots in two southwestern Minnesota counties. We found substantial support for such a link in the study area. That relationship was positive, not negative as we had expected. The effect was most pronounced for houses that are older, relatively lower in price, or located in small towns. In this paper, I summarize the approach and discuss the findings of that research. I then sketch out what I hope will prove a fruitful set of further inquiries into the question of multiple disamenities and hedonic price estimation.
The Anomalous Case of Axion EFTs and Massive Chiral Gauge Fields
Creators: name: Bonnefoy, Quentin
name: Di Luzio, Luca
name: Grojean, Christophe
name: Paul, Ayan
name: Rossia, Alejo N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study axion effective field theories (EFTs), with a focus on axion couplings to massive chiral gauge fields. We investigate the EFT interactions that participate in processes with an axion and two gauge bosons, and we show that, when massive chiral gauge fields are present, such interactions do not entirely originate from the usual anomalous EFT terms. We illustrate this both at the EFT level and by matching to UV-complete theories. In order to assess the consistency of the Peccei--Quinn (PQ) anomaly matching, it is useful to introduce an auxiliary, non-dynamical gauge field associated to the PQ symmetry. When applied to the case of the Standard Model (SM) electroweak sector, our results imply that anomaly-based sum rules between EFT interactions are violated when chiral matter is integrated out, which constitutes a smoking gun of the latter. As an illustration, we study a UV-complete chiral extension of the SM, containing an axion arising from an extended Higgs sector and heavy fermionic matter that obtains most of its mass by coupling to the Higgs doublets. We assess the viability of such a SM extension through electroweak precision tests, bounds on Higgs rates and direct searches for heavy charged matter. At energies below the mass of the new chiral fermions, the model matches onto an EFT where the electroweak gauge symmetry is non-linearly realised.
description: 32 pages + appendices. v2: Several clarifications added, results unchanged. Accepted for publication in JHEP
On the reliability of merger-trees and the mass growth histories of dark matter haloes
Creators: name: Hiotelis, N.
name: Del Popolo, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used merger trees realizations to study the formation of dark matter haloes. The construction of merger-trees is based on three different pictures about the formation of structures in the Universe. These pictures include: the spherical collapse (SC), the ellipsoidal collapse (EC) and the non-radial collapse (NR). The reliability of merger-trees has been examined comparing their predictions related to the distribution of the number of progenitors, as well as the distribution of formation times, with the predictions of analytical relations. The comparison yields a very satisfactory agreement. Subsequently, >.........
description: A&SS Accepted
THE CHANGING POLITICAL ENVIRONMENT FOR TOBACCO -- IMPLICATIONS FOR SOUTHERN TOBACCO FARMERS, RURAL ECONOMIES, TAXPAYERS, AND CONSUMERS: DISCUSSION
Creators: name: Sutton, Russell W.
name: Sutton, Russell W.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agricultural and Food Policy
subject: price-support program
subject: tobacco industry
subject: tobacco program

description: This paper is a discussion of the Brown, Snell, and Tiller article. The economic accuracy, conciseness, and organization is noteworthy with the major strength being the analysis of the tobacco system with the absence of a Federal program. The base paper discusses economic consequences of the U.S. tobacco program, within-industry structural differences, and recent/potential future changes such as the buy-out, industry uncertainty, and the possibility of program elimination.
Leveraging social protection to advance climate-smart agriculture: evidence from Malawi
Creators: name: Ignaciuk, Ada
name: Scognamillo, Antonio
name: Sitko, Nick
name: Ignaciuk, Ada
name: Scognamillo, Antonio
name: Sitko, Nick
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: social protection
subject: climate-smart agriculture
subject: developing countries
subject: sustainable agriculture
subject: case studies
subject: Malawi

description: In many developing countries the adoption of climate sustainable practices is hindered by resource and risk barriers. This paper assesses the interactions between participation in Malawi’s largest public works programme, the Malawi Social Action Fund (MASAF), and three widely promoted climate-smart agriculture (CSA) practices. The underlying hypotheses to be tested are: (a) that participation in the MASAF programme reduce both the budget and the risk constraints to the adoption of sustainable management practices; and (b) the joint treatment effect of MASAF and CSA increases household farms’ productivity and welfare. Drawing on three waves of national panel household survey data, we find that participation in MASAF significantly increases the probability that farm households adopt all the CSA practices considered for this study.
description: FAO Document Repository: https://doi.org/10.4060/cb3649en
Representaciones sociales en torno a la violencia según el relato retrospectivo de adultos residentes en la ciudad de Chillán, que estuvieron privados de libertad siendo jóvenes o adolesc
Creators: name: Elgueta Ortiz, Paola
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 529999
subject: Other psychology not elsewhere classified

description: El propósito principal fue examinar las representaciones sociales de la violencia en adolescentes y jóvenes elaboradas por adultos residentes en Chillán, desde su relato retrospectivo y que experimentaron privación de libertad en su juventudEn las conclusiones, se identificaron elementos condicionantes que afectan la interpretación de la realidad por parte de los participantes, destacando el abandono materno, el dominio violento intrafamiliar paternal, una identidad deteriorada y una autopercepción positiva
Crackling noise in paper peeling
Creators: name: Salminen, L. I.
name: Pulakka, J. M.
name: Rosti, J.
name: Alava, M. J.
name: Niskanen, K. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Acoustic emission or crackling noise is measured from an experiment on splitting or peeling of paper. The energy of the events follows a power-law, with an exponent $β\sim 1.8\pm 0.2$. The event intervals have a wide range, but superposed on scale-free statistics there is a time-scale, related to the typical spatial scale of the microstructure (a bond between two fibers). Since the peeling takes place via steady-state crack propagation, correlations can be studied with ease and shown to exist in the series of acoustic events.
description: one separate figure
Angular clustering and host halo properties of [OII] emitters at $z >1$ in the Subaru HSC survey
Creators: name: Okumura, Teppei
name: Hayashi, Masao
name: Chiu, I-Non
name: Lin, Yen-Ting
name: Osato, Ken
name: Hsieh, Bau-Ching
name: Lin, Sheng-Chieh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the angular correlation function of star-forming galaxies and properties of their host dark matter halos at z>1 using the Hyper-Suprime Cam (HSC) SSP survey. We use [OII] emitters identified using two narrow-band (NB) filters, NB816 and NB921, in the Deep/UltraDeep layers, which respectively cover large angular areas of 16.3 deg^2 and 16.9 deg^2. Our sample contains 8302 and 9578 [OII] emitters at z=1.19 (NB816) and z=1.47 (NB921), respectively. We detect a strong clustering signal over a wide angular range, 0.001 < θ< 1 [deg], with the bias $b=1.61^{+0.13}_{-0.11}$ (z=1.19) and $b=2.09^{+0.17}_{-0.15}$ (z=1.47). We also find a clear deviation of the correlation from a simple power-law form. To interpret the measured clustering signal, we adopt a halo occupation distribution (HOD) model that is constructed to explain the spatial distribution of galaxies selected by a star formation rate. The observed correlation function and number density are simultaneously explained by the best-fitting HOD model. From the constrained HOD model, the average mass of halos hosting the [OII] emitters is derived to be $\log{M_{eff}/(h^{-1}M_\odot)}=12.70^{+0.09}_{-0.07}$ and $12.61^{+0.09}_{-0.05}$ at z=1.19 and 1.47, respectively, which will become halos with the present-day mass, $M\sim 1.5 \times 10^{13}h^{-1}M_\odot$. The satellite fraction of the [OII] emitter sample is found to be $f_{sat}\sim 0.15$. All these values are consistent with the previous studies of similar samples, but we obtain tighter constraints even in a larger parameter space due to the larger sample size from the HSC. The results obtained for host halos of [OII] emitters in this paper enable the construction of mock galaxy catalogs and the systematic forecast study of cosmological constraints from upcoming emission line galaxy surveys such as the Subaru PFS survey.
description: 21 pages, 13 figures, 5 tables, accepted to PASJ
RISK MANAGEMENT POTENTIAL OF PRECISION FARMING TECHNOLOGIES
Creators: name: Lowenberg-DeBoer, James
name: Lowenberg-DeBoer, James
Publisher: name: Unknown
Year: 1999
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Risk and Uncertainty
subject: food safety
subject: GIS
subject: GPS
subject: crop insurance
subject: marketing
subject: precision farming
subject: site specific management
subject: risk

description: Initial ideas on risk management uses of precision agricultural technology focused on site-specific treatment of problem areas to reduce the probability of low yields and returns. Recent discussions deal with sensor and remote-sensing information to improve marketing and "as applied maps" as trace-back mechanisms to manage liability. A theoretical model is presented that suggests that there are plausible circumstances under which precision farming can reduce temporal yield variability. Empirical evidence from an on-farm trial of site-specific P&K management in the Eastern Cornbelt supports the hypothesis that precision farming can have risk-reducing benefits.
ENCODING VALUES AND PRACTICES IN ETHICAL JEWELLERY PURCHASING: A CASE HISTORY OF ITALIAN ETHICAL LUXURY CONSUMPTION
Creators: name: Linda, Armano
name: Annamma, Joy
Publisher: name: Zenodo
Year: 2021
Subjects: Ethical jewellery consumption
Italian ethical jewellery consumers
conflict-free diamonds
fair mined gold

description: The concept of ethical jewellery today includes certified fair mined gold as well as conflict-free and ethically mined diamonds; consumption of such products is soaring in tandem with evolving consumer interest in ethical labour practices and sustainability. While previous studies investigate ethical jewellery consumption, the literature is silent on such consumption by Italian consumers. We aim to close this gap, through a case history of Italy’s first and currently most popular ethical jewellery store, Gioielleria (Jewellery) Belloni in Milan. Through ethnographic interviews with the owner and a representative sample of his clientele, we illuminate an ethical jeweller’s practices and values, contextualized in the socio-cultural traditions unique to Italy. We further examine how Italian ethical consumers interpret Canadian ethical diamonds and certified Fair mined gold during their purchasing experiences, vis-à-vis their perceptions of the Made in Italy brand. We employ Ethnopragmatic Theory (Duranti 2011) and the concept of Territorialisation (De Martino 2008) in our conceptual framework.
Bundle geometry of the connection space, covariant Hamiltonian formalism, the problem of boundaries in gauge theories, and the dressing field method
Creators: name: François, Jordan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We take advantage of the principal bundle geometry of the space of connections to obtain general results on the presymplectic structure of two classes of (pure) gauge theories: invariant theories, and non-invariant theories satisfying two restricting hypothesis. In particular, we derive the general field-dependent gauge transformations of the presymplectic potential and presymplectic 2-form in both cases. We point-out that a generalisation of the standard bundle geometry, called twisted geometry, arises naturally in the study of non-invariant gauge theories (e.g. non-Abelian Chern-Simons theory). These results prove that the well-known problem of associating a symplectic structure to a gauge theory over bounded regions is a generic feature of both classes. The edge modes strategy, recently introduced to address this issue, has been actively developed in various contexts by several authors. We draw attention to the dressing field method as the geometric framework underpinning, or rather encompassing, this strategy. The geometric insight afforded by the method both clarifies it and clearly delineates its potential shortcomings as well as its conditions of success. Applying our general framework to various examples allows to straightforwardly recover several results of the recent literature on edge modes and on the presymplectic structure of general relativity.
description: Version augmented with a new appendix. Correction of many misprints in formulae and in text. 81 pages
HOPES AND FEARS: THE NEW WORLD TRADE NEGOTIATIONS AND SOUTHERN AGRICULTURE
Creators: name: Marchant, Mary A.
name: Marchant, Mary A.
Publisher: name: Unknown
Year: 1999
Subjects: subject: International Relations/Trade
subject: agricultural trade
subject: cotton
subject: General Agreement on Tariffs and Trade (GATT)
subject: international trade
subject: poultry
subject: rice
subject: the South
subject: tobacco
subject: Uruguay Round Agreements
subject: World Trade Organization (WTO)

description: Understanding the impacts of the Uruguay Round (UR) Agreement on southern commodities serves as a starting point to assess the potential impacts of the next global trade negotiations in terms of hope (expanding export markets) and fear (new competition). Key issues examined include whether or not the UR Agreement resulted in new markets or new competition for key southern commodities-cotton, poultry, tobacco, and rice. For new markets, export data were analyzed to determine if exports increased since the passage of the UR Agreement in 1994. Also, countries that are leading world importers of these southern commodities were identified and data analyzed to determine whether the U.S. is exporting to these top markets. Alternatively, to assess whether the UR Agreement resulted in new competition for southern commodities, countries that are leading world exporters were identified and data analyzed to determine whether the U.S. is among them. Data analyses was supplemented with interviews of southern commodities experts who assess impacts of the GATT-UR and identify issues for the next round of global trade negotiations.
Polarized Structure Function $σ_{LT'}$ for $p({\vec e},e'K^+)Λ$ in the Nucleon Resonance Region
Creators: name: Nasseripour, Rakhsha
name: Raue, Brian
name: Carman, Daniel
name: Ambrozewicz, Pawel
name: Collaboration, the CLAS
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The first measurements of the polarized structure function $σ_{LT'}$ for the reaction $p(\vec e,e'K^+)Λ$ in the nucleon resonance region are reported. Measurements are included from threshold up to $W$=2.05 GeV for central values of $Q^2$ of 0.65 and 1.00 GeV$^2$, and nearly the entire kaon center-of-mass angular range. $σ_{LT'}$ is the imaginary part of the longitudinal-transverse response and is expected to be sensitive to interferences between competing intermediate s-channel resonances, as well as resonant and non-resonant processes. The results for $σ_{LT'}$ are comparable in magnitude to previously reported results from CLAS for $σ_{LT}$, the real part of the same response. An intriguing sign change in $σ_{LT'}$ is observed in the high $Q^2$ data at $W\approx 1.9$ GeV. Comparisons to several existing model predictions are shown.
description: 2 tex files and 12 figures (14 eps files), 33 pages in one column format
IMPACT OF PRODUCTION CHANGES ON INCOME AND ENVIRONMENTAL RISK IN THE SOUTHERN HIGH PLAINS
Creators: name: Mapp, Harry P.
name: Mapp, Harry P.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Environmental Economics and Policy
subject: Farm Management
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: converting irrigation systems
subject: environmental risk
subject: environmental risk models
subject: regional environmental analysis
subject: taxing irrigation water
subject: taxing nitrogen use

description: Regional and farm-level analyses are conducted to evaluate the economic and environmental impacts of water quality protection policies. The regional analysis evaluates reducing nitrate losses by reducing per-acre nitrogen use, taxing nitrogen use, taxing irrigation water use, and reducing furrow irrigation. Incentives to convert furrow systems to sprinkler and LEPA systems outperform the other policies. The firm-level analysis derives farm plans that limit the expected values of environmental indices for nitrates and pesticides, and reduce the probability that specified targets will be exceeded. The analysis demonstrates the importance of evaluating environmental risk as stochastic process.
Topological Properties of Bulk and Bilayer 2M WS$_2$: A First-Principles Study
Creators: name: Joseph, Nesta Benno
name: Narayan, Awadhesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recently discovered 2M phase of bulk WS$_2$ was observed to exhibit superconductivity with a critical temperature of 8.8 K, the highest reported among superconducting transition metal dichalcogenides. Also predicted to support protected surface states, it could be a potential topological superconductor. In the present study, we perform a detailed first-principles analysis of bulk and bilayer 2M WS$_2$. We report a comprehensive investigation of the bulk phase, comparing structural and electronic properties obtained from different exchange correlation functionals to the experimentally reported values. By calculation of the $Z_2$ invariant and surface states, we give support for its non-trivial band nature. Based on the insights gained from the analysis of the bulk phase, we predict bilayer 2M WS$_2$ as a new two-dimensional topological material. We demonstrate its dynamical stability from first-principles phonon computations and present its electronic properties, highlighting the band inversions between the W $d$ and S $p$ states. By means of $Z_2$ invariant computations and a calculation of the edge states, we show that bilayer 2M WS$_2$ exhibits protected, robust edge states. The broken inversion symmetry in this newly proposed bilayer also leads to the presence of Berry curvature dipole and resulting non-linear responses. We compute the Berry curvature distribution and the dipole as a function of Fermi energy. We propose that BCD signals, which are absent in the centrosymmetric bulk 2M WS$_2$, can be signatures of the bilayer. We hope our predictions lead to the experimental realization of this as-yet-undiscovered two-dimensional topological material.
description: Added results on Berry curvature dipole
Sexuality Education in the Twenty-First Century: The Struggle over Adolescent Rights
Creators: name: Huff, Andrew
Publisher: name: Maryland Shared Open Access Repository
Year: 2012

description: Julia Rogers Research Prize: First Year/ Sophomore Winner, 2012
description: The beginning of the research strategy entailed entering key phases into the Goucher College Library online databases, particularly EBSCO and JSTOR. The online databases provided a medium for specified research that would yield rapid results and allow for easy alterations to key words, subjects, questions, or phrases as the research unfolded. I first manipulated the basic concepts of “sex education,” “sexuality education,” and “sexual health” paired with “the United States,” “The Netherlands,” and “Uganda.” I found that the designation of a word or phrase as a “subject,” “title,” “key word,” or “appearance in the text” greatly impacted the quantity of results a search produced.
Both the breadth and lack of results proved frustrating at times, and the process could become quite tedious. However, the more time I spent with the search engines the more astute I became at working with the system and tailoring my questions to fit the breakdowns presented by EBSCO and JSTOR. The in-person resources helped facilitate a launching pad for further research at the beginning of the process. A research consultation with Randy Smith afforded me three articles and two books that pertained to my topic. Having assistance with acquiring the initial sources for my paper reduced the anxiety about finding where to begin looking for information.
Later, the library book catalog very quickly located more detailed and lengthier volumes to apply to my topic. Even if the specific books I searched were lost within the shelves, the general vicinity the catalog led me to proved worth the effort. Likewise, the Interlibrary Loan system plugged-in any holes that the Goucher library could not immediately fill. All it required was a bit of patience to wait for a book or journal article, during which time I could continue to peruse the online databases for more information.
As a freshman writing my first extensive research paper, I felt incredibly motivated but also daunted by the task of finding the research. Despite my excitement at the process of synthesizing information into a powerful statement, I knew that I first had to find that information. The Goucher College Library resources – principally the online journal databases – made the research process easy to navigate and conducive to the evolution of my research question.
description: Dr. Eric Singer
Collective states of interacting ferromagnetic nanoparticles
Creators: name: Petracic, O.
name: Chen, X.
name: Bedanta, S.
name: Kleemann, W.
name: Sahoo, S.
name: Cardoso, S.
name: Freitas, P. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Discontinuous magnetic multilayers [CoFe/Al2O3] are studied by use of magnetometry, susceptometry and numeric simulations. Soft ferromagnetic Co80Fe20 nanoparticles are embedded in a diamagnetic insulating a-Al2O3 matrix and can be considered as homogeneously magnetized superspins exhibiting randomness of size (viz. moment), position and anisotropy. Lacking intra-particle core-surface ordering, generic freezing processes into collective states rather than individual particle blocking are encountered. With increasing particle density one observes first superspin glass and then superferromagnetic domain state behavior. The phase diagram resembles that of a dilute disordered ferromagnet. Criteria for the identification of the individual phases are given.
description: JMMM in print, (invited)
Fresnel Models for Gravitational Wave Effects on Pulsar Timing
Creators: name: McGrath, Casey
name: Creighton, Jolien
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Merging supermassive black hole binaries produce low-frequency gravitational waves, which pulsar timing experiments are searching for. Much of the current theory is developed within the plane-wave formalism, and here we develop the more general Fresnel formalism. We show that Fresnel corrections to gravitational wave timing residual models allow novel measurements to be made, such as direct measurements of the source distance from the timing residual phase and frequency, as well as direct measurements of chirp mass from a monochromatic source. Probing the Fresnel corrections in these models will require future pulsar timing arrays with more distant pulsars across our Galaxy (ideally at the distance of the Magellanic Clouds), timed with precisions less than $100$ ns, with distance uncertainties reduced to the order of the gravitational wavelength. We find that sources with chirp mass of order $10^9 \ \mathrm{M}_\odot$ and orbital frequency $ω_0 > 10$ nHz are good candidates for probing Fresnel corrections. With these conditions met, the measured source distance uncertainty can be made less than 10 per cent of the distance to the source for sources out to $\sim 100$ Mpc, source sky localization can be reduced to sub-arcminute precision, and source volume localization can be made to less than $1 \ \text{Mpc}^3$ for sources out to 1-Gpc distances.
description: 28 pages, 11 figures, 1 supplementary document. Published by the Monthly Notices of the Royal Astronomical Society