12,934 research outputs found
Proposed Category System for 1960-2000 Census Occupations
This paper proposes a detailed, consistent category system for occupations in the Census of Population data from 1960 to 2000. Most of the categories are based on the 1990 Census occupation definitions. We analyze employment levels, average earnings levels, and earnings variance in our occupation categories over time, compare these to similar trends for occupations defined in the occ1950 IPUMS classification, and test both classifications for consistency over time.occupations; jobs; classification; categories; metadata; Census; IPUMS
Limited phase deviation frequency multiplier phase modulator, appendix e final report
Limited phase deviation frequency multiplier phase modulator - application to radio frequency test console equipmen
The Cast[e]ing of Heroic Landscapes of Power: Constructing Canada's Pantheon on Parliament Hill
This paper explores Canada's strategy of nurturing a collective memory and social cohesion by the construction of a memorial-complex in the evolving capitol-capital complex. It called for the representation of national narratives in monumental forms, the construction and consecration of a symbolic topography, and the performance of identity through commemorative activities. It is argued here that the ever-expanding pantheon of national heroes on Parliament Hill is intended to materialize the abstract ideas of the "nationalizing-state" as they evolved through the trajectory of dependent-colony, imperial-nation, state-nation, and consensual community. That is, the cultivation of a collective memory grounded in a mythic past, reified in the present, and projected into the future. The question is posed whether such strategies are sensitive to Canada's role in a globalizing world.
Résumé
Cet article se penche sur la stratégie de construction d'un complexe commémoratif au sein d'un ensemble capitole-capitale en évolution, qu'a utilisée le Canada pour alimenter la mémoire collective et favoriser la cohésion sociale. Cette stratégie reposait sur la représentation de récits nationaux sous forme de monuments, la construction et la consécration d'une topographie symbolique et la mise en scène de l'identité par des activités commémoratives. Les auteurs considèrent que le panthéon toujours grandissant de héros nationaux sur la colline du Parlement a pour fin de matérialiser les idées abstraites d'État nationalisâtes, qui ont évolué au fil des ans suivant la trajectoire menant de colonie dépendante à nation impériale, puis à nation-État et collectivité consensuelle. Il s'agit de la culture d'une mémoire collective ancrée sur un passé mythique, réifiée dans le présent et projetée dans l'avenir. La question est maintenant de savoir si de telles stratégies prennent en compte le rôle du Canada dans un contexte de mondialisation
The Computer Science Ontology: A Large-Scale Taxonomy of Research Areas
Ontologies of research areas are important tools for characterising, exploring, and analysing the research landscape. Some fields of research are comprehensively described by large-scale taxonomies, e.g., MeSH in Biology and PhySH in Physics. Conversely, current Computer Science taxonomies are coarse-grained and tend to evolve slowly. For instance, the ACM classification scheme contains only about 2K research topics and the last version dates back to 2012. In this paper, we introduce the Computer Science Ontology (CSO), a large-scale, automatically generated ontology of research areas, which includes about 26K topics and 226K semantic relationships. It was created by applying the Klink-2 algorithm on a very large dataset of 16M scientific articles. CSO presents two main advantages over the alternatives: i) it includes a very large number of topics that do not appear in other classifications, and ii) it can be updated automatically by running Klink-2 on recent corpora of publications. CSO powers several tools adopted by the editorial team at Springer Nature and has been used to enable a variety of solutions, such as classifying research publications, detecting research communities, and predicting research trends. To facilitate the uptake of CSO we have developed the CSO Portal, a web application that enables users to download, explore, and provide granular feedback on CSO at different levels. Users can use the portal to rate topics and relationships, suggest missing relationships, and visualise sections of the ontology. The portal will support the publication of and access to regular new releases of CSO, with the aim of providing a comprehensive resource to the various communities engaged with scholarly data
Democratic Transition in the Development Context: The Case Study of Tonga
In 2010 the Kingdom of Tonga experienced a democratic transition that saw the balance of power shift from a hereditary monarchy to the people. Elections were held that for the first time would result in a majority of Tonga’s Parliament comprising of democratically-elected politicians. Parliament was given the responsibility of nominating a Prime Minister from amongst its own ranks, who would in turn became responsible for nominating the Cabinet. These powers were formerly held by Tonga’s hereditary monarchy, whose role was reduced to one more akin to that performed by the modern monarchs of Europe. Since the 1960s, Tonga has received an increasing amount of overseas aid, especially from Australia, New Zealand, Japan, and, latterly, China. Historically, donors have not been overtly concerned with issues of democracy in developing countries, instead relying on the modernist notion that economic development would lead to democratic development. Since the 1980s, however, donors have become increasingly interested in the issue of democracy in developing countries, as a result of the good governance agenda and its successor paradigm, the aid effectiveness agenda. This thesis explores the impact of donors on Tonga’s 2010 democratic transition, concluding that the effect of donors manifested in a variety of direct and indirect ways. A retrospective analysis identifies aspects of Tonga’s 2010 democratic transition that could have been improved, and actions that donors should consider taking if faced with similar circumstances in the future. Finally, the thesis considers how donors can assist the consolidation of Tongan democracy, concluding that support should be targeted towards sustainable economic development, the rule of law, and the public service
The ground state of a class of noncritical 1D quantum spin systems can be approximated efficiently
We study families H_n of 1D quantum spin systems, where n is the number of
spins, which have a spectral gap \Delta E between the ground-state and
first-excited state energy that scales, asymptotically, as a constant in n. We
show that if the ground state |\Omega_m> of the hamiltonian H_m on m spins,
where m is an O(1) constant, is locally the same as the ground state
|\Omega_n>, for arbitrarily large n, then an arbitrarily good approximation to
the ground state of H_n can be stored efficiently for all n. We formulate a
conjecture that, if true, would imply our result applies to all noncritical 1D
spin systems. We also include an appendix on quasi-adiabatic evolutions.Comment: 9 pages, 1 eps figure, minor change
Development And Application Of Foraminiferal Carbonate System Proxies To Quantify Ocean Acidification In The California Current
The oceanic uptake of anthropogenic carbon has mitigated climate change, but has also resulted in a global average 0.1 decline in surface ocean pH over 20th century known as ocean acidification. The parallel reduction in carbonate ion concentration ([CO32-]) and the saturation state of seawater (Ω) has caused many major calcium carbonate-secreting organisms such as planktonic foraminifera to exhibit impaired calcification. We develop proxy calibrations and down core records that use calcification and geochemical characteristics of planktonic foraminifera as proxies for the marine carbonate system. This study focuses specifically on the surface ocean chemistry of the California Current Ecosystem (CCE), which has been identified as a region of rapidly progressing ocean acidification due to natural upwelling processes and the low buffering capacity of these waters. The calibration portion of this study uses marine sediments collected by the Santa Barbara Basin (SBB), California sediment-trapping program located in the central region of the CCE. We calibrate the relationships of Globigerina bulloides calcification intensity to [CO32-] and the B/Ca ratios of G. bulloides, Neogloboquadrina dutertrei and Neogloboquadrina incompta shells to Ω calcite using in situ measurements and model simulations of these independent variables. By applying these proxy methods to down core, our records from the SBB indicate a 20% reduction in foraminiferal calcification since ~1900, translating to a 35% decline in [CO32-] in the CCE over this period. Our high-resolution calcification record also reveals a substantial interannual to decadal modulation of ocean acidification in the CCE related to the sign of Pacific Decadal Oscillation and El Niño Southern Oscillation. In the future we can expect these climatic modes to both enhance and moderate anthropogenic ocean acidification. Based on our historic record, we predict that if atmospheric CO2 reaches 540 ppm by the year 2100 as predicted by a conservative CO3 pathway, [CO32-] will experience a net reduction of 55%, resulting in at least a 30% reduction in calcification of planktonic foraminifera that will likely be mirrored by other adversely affected marine calcifiers
Management by Objectives: The Process and Status of Implementation in State Departments of Education and Selected School Districts
Purpose. The problem of this study was: (1) to determine which of the fifty state departments of education in the United States were participating in a Management by Objectives (MBG) system of management; (2) to determine which of the public school districts identified by their respective state departments of education were utilizing an MBO system of management; (3) to determine how such a system was installed in each agency; and (4) to determine if the concepts and techniques of MBO, as practiced in selected educational agencies, favorably compared to the standards established for this study. Method. The descriptive-survey method of research investigation wsb utilized to collect data from the managerial offices of the fifty state departments of education and selected school districts throughout the United States. Data were gathered using a two-part questionnaire which was completed and returned by selected educational administrators at state and local levels who had Implemented MBO in their educational agencies. Summary. MBO had been implemented in a majority of the state departments of education in the United States. Officials from state departments of education and various MBO consultants assisted in locating ninety-nine school districts that were involved with an MBO system. Officials from state departments of education and selected school districts provided responses relative to demographic data and information relative to the methods of MBO implementation (Part I of the questionnaire)and responses pertaining to MBO concepts and techniques (Fart II of the questionnaire). Data from the questionnaire were reported, and a narrative was written describing the findings. Conclusions. Twelve hypotheses, which were related to questions in Part I and Fart II of the questionnaire, were tested. Significant differences were found by testing the hypotheses using the Student\u27s t test. There were significant differences in mean scores relating to seven of the twelve hypotheses
Freak Waves in Random Oceanic Sea States
Freak waves are very large, rare events in a random ocean wave train. Here we
study the numerical generation of freak waves in a random sea state
characterized by the JONSWAP power spectrum. We assume, to cubic order in
nonlinearity, that the wave dynamics are governed by the nonlinear Schroedinger
(NLS) equation. We identify two parameters in the power spectrum that control
the nonlinear dynamics: the Phillips parameter and the enhancement
coefficient . We discuss how freak waves in a random sea state are more
likely to occur for large values of and . Our results are
supported by extensive numerical simulations of the NLS equation with random
initial conditions. Comparison with linear simulations are also reported.Comment: 7 pages, 6 figures, to be published in Phys. Rev. Let
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