16,938 research outputs found
Korean War Interviews, 2015
No full textThe data includes the interviews conducted in Andong 5 Welfare Centre in Mapo-gu, Seoul, Korea. Through the archive, the author hopes to increase accessibility of the information about the ordinary people's experiences of the war for anyone who is interested in the topic. The archive will also help the author to uncover the voices of the people whose presence is often shadowed in history and the official knowledge by the narratives of the agencies of the government or a few powerful personalities
sou-cheng-choi/GAIL_Dev:
No full textGAIL is a suite of algorithms for integration problems in one, many, and infinite dimensions, and whose answers are guaranteed to be correct. GAIL is created, developed, and maintained by Fred Hickernell (Illinois Institute of Technology), Sou-Cheng Choi (University of Chicago and Argonne National Laboratory), and their collaborators including Yuhan Ding (IIT), Lan Jiang (IIT), and Yizhi Zhang (IIT)
Extração de esforço de trabalho e diferenciais de salários em um ambiente macrodinâmico clássico
No full textDissertação (mestrado) - Universidade Federal de Santa. Catarina, Centro Sócio-Econômico, Programa de Pós-Graduação em Economia, Florianópolis, 2015Flutuações recorrentes dos níveis de atividade econômica, diferenciais de salários inter e intraindústrias e endogeneidade do esforço do trabalho com relação aos salários são fatos bem documentados pela literatura empírica em economia. Goodwin (1967) apresenta um modelo agregado real e não-linear de crescimento econômico que é capaz de gerar flutuações endógenas recorrentes. No entanto, este trabalho pressupõe que o salário real da economia é homogêneo entre os trabalhadores e a produtividade do trabalho cresce a uma taxa constante e exogenamente determinada. A endogeneidade do esforço do trabalho é incorporada ao modelo de Goodwin por Choi (1995), com a adoção da hipótese de salário-eficiência. Entretanto, o modelo de Choi (1995) conclui que a existência de ciclos de crescimento estáveis no modelo de Goodwin com a hipótese de salário-eficiência demanda, necessariamente, que a relação entre esforço do trabalho e salário real seja inversa, relação que contradiz uma parte considerável da literatura experimental e empírica sobre endogeneidade do esforço do trabalho. Ademais, Choi (1995) conclui ainda que para valores economicamente significativos da elasticidade do esforço do trabalho com relação ao salário (entre 0 e 1), ciclos de crescimento são impossíveis. A existência e persistência de heterogeneidade de salários em uma macrodinâmica clássica à la Goodwin pode ser verificada no trabalho de Silveira (2012), que propõe um modelo de ciclos de crescimento goodwinianos, sob a perspectiva da complexidade, com desagregação do mercado de trabalho. No entanto, no modelo proposto em Silveira (2012) a produtividade do trabalho é homogênea, ou seja, não depende nem dos salários nem do diferencial de salários. Este trabalho assume o modelo de Silveira (2012) como referência e tem como objetivo propor um modelo econômico computacional baseado em agentes de uma macrodinâmica clássica do tipo Goodwin com endogeneidade do nível de esforço e heterogeneidade de salários. Diferentemente da conclusão de Choi (1995), o modelo com endogeneidade do esforço é capaz de gerar flutuações endógenas recorrentes em torno de médias de longo prazo constantes quando a elasticidade do esforço com relação ao diferencial de salários possui valores economicamente significativos. Além disso, o modelo é capaz de gerar propriedades macroeconômicas emergentes em termos de médias de longo prazo da taxa de emprego e participação do salário na renda em parte compatíveis com o previsto originalmente por Goodwin (1967). Os parâmetros da função esforço inserida na macrodinâmica clássica influenciam as médias de longo prazo das variáveis de estado do modelo, no entanto, parecem ter influências apenas distributivas, deixando a média de longo prazo da taxa de emprego invariante. Ademais, o modelo proposto é utilizado para explicar as variações dos componentes cíclicos das séries temporais empíricas das variáveis taxa de emprego e participação do salário na renda. O modelo é ajustado para dados anuais da economia norte-americana no período 1948-2002. Percebe-se que as características de longo prazo, médias da taxa de emprego e participação do salário na renda, geradas pelo modelo são consistentemente e consideravelmente mais baixas que as empíricas. Além disso, o grau de ajuste do modelo proposto às características cíclicas das séries empíricas é baixo. No entanto, cabe ressaltar a simplicidade do modelo proposto.Abstract : Recurrent fluctuations of economic activity, inter and intra-industries wage differentials and endogeneity effort of work with respect to wages are well documented facts by the empirical literature in economics. Goodwin (1967) presents a real nonlinear aggregate model of economic growth capable to generate recurrent endogenous fluctuations. However, his model assumes that the real wage is homogeneous among workers and the productivity of work grows at a constant and exogenous rate. The endogeneity of work effort is incorporated into Goodwin's model by Choi (1995), assuming the efficiency-wage hypothesis. However, Choi's concludes that the existence of stable growth cycles in Goodwin's model under efficiency-wage hypothesis demands, necessarily, that the relation between work effort and real wages to be inverse, which contradicts a considerable part of the experimental and empirical literature on the endogeneity of work effort. In addition, Choi (1995) concludes that for economically significant values of effort-wage elasticity (between 0 and 1), growth cycles are impossible. The existence and persistence of wage heterogeneity in a classical macrodynamic Goodwin's like can be ovserved in the work of Silveira (2012), who proposes a model of goodwinian growth cycles, under the complexity approach, with disaggregated labor market. However, in Silveira's model the productivity of workers is homogeneous, i.e., depends neither on wages nor wage differentials. This work takes the model of Silveira (2012) as benchmark and aims to propose a computational agent-based economic model of a Goodwin-like classical macrodynamic with wage heterogeneity and endogeneity of work effort with respect to the wage differentials. Unlike Choi's conclusion, the model with endogenous effort is capable to generate recurrent endogenous fluctuations around constant long run averages when the effort-wage differentials elasticity has economically significant values. In addition, the model also generates emergent macroeconomic properties in terms of long run averages of employment rate and wage share that are, in part, consistend with the originally predicted by Goodwin's model. The parameters of the effort-function included in the classical macrodynamic influence the long-run averages of the state variables of the model, however, they seem to have only distributive effects, while the long-run average of employment rate remains invariant. Moreover, the proposed model is used to explain the variations of the cyclical components of the annual time series of the employment rate and wage share of the US economy in the period 1948-2002. It is noticed that the long-run characteristics, employment rate and wage share averages, generated by the model are consistently and significantly lower than the empirical. Furthermore, the adjustement of the proposed model to the cyclical characteristics of the empirical series is low. However, it should be noted the starkly simplicity of the proposed model
Franny Choi, 41st Annual ODU Literary Festival
No full textFranny Choi is a queer, Korean-American poet, playwright, teacher, organizer, pottymouth, GryffinClaw, and general overachiever. She is the author of Floating, Brilliant, Gone (2014), and a chapbook, Death by Sex Machine (2017). She has received awards from the Poetry Foundation and the Helen Zell Writers Program, as well as fellowships from the Vermont Studio Center and the Rhode Island State Council on the Arts. Her poems have appeared in journals including Poetry magazine, American Poetry Review, New England Review, and her work has been featured by the Huffington Post, PBS NewsHour, and Angry Asian Man
A Comparative Study on Publishers’ Adult Book Clubs Marketing Strategies in the UK and South Korea
No full textThis dissertation aims to produce useful advice for publishers who are planning to organise their own reading group. Particularly, I focus on publishers’ book club marketing strategies which are expected to build a strong relationship with consumers and maximize their marketing efficiency.
This research mainly observed publishers’ adult book clubs in the UK and South Korea. These countries have different market situations and historical context, and therefore each publisher performs various marketing activities within their individual tactics and goals. In order to discover useful recommendations which can be mutually beneficial for improving the book club marketing, I analyse similarities and differences of the overall book club trends between these countries.
In Britain, publishers commonly tend to cooperate with existing, already well-organised reading groups, rather than organising their own new book clubs. However, there are several successful publishers’ book clubs operating on social media as well. I mainly observed three publishers’ book clubs: Hurricane Book Club (Pan Macmillan), Page Turners (Penguin Books) and Virago Modern Classic Book Club (Virago). I also interviewed the marketers who are in charge of these book clubs. I found that most book club marketing strategies are functioning effectively in the whole marketing chain. Common book club activities in Britain such as social media campaigns, author events and promotional materials are very well-integrated with the ordinary marketing and PR plans. The book clubs give additional opportunities to promote their titles, and can target specific audiences who voluntarily belong to their book club. This helps publishers to minimise their effort and budget on marketing.
In South Korea, although private reading groups have been fewer than in Western countries, these are recently getting popular with the younger generation. The boom of reading groups met the needs of Korean publishers that had been seeking a method to reduce marketing costs. Furthermore, book clubs which can build a consumer relationship without retailers strongly attracted publishers. Over the past few years, several publishers started organising their own book clubs. I mainly analysed three publishers’ book clubs: Minum Book Club (Minumsa), Book Club Munhakdongne (Munhakdongne) and Chaegingnundang (Changbi) and also interviewed three marketers who are in charge of these book clubs. The most distinctive feature throughout the overall Korean trend is that a paid membership model is thriving. Based on a large budget from their annual fee, publishers could provide numerous giveaways and events for their members exclusively. These book club activities reinforced loyalty of their brands. Furthermore, several gigantic book clubs drew huge attention from media and the public, so their brand awareness is enhanced as well.
The analysis of the book club activities potentially provides useful marketing advice for publishers in both countries. British publishers might consider the paid membership which can provide rich giveaways and events without a huge financial burden. This membership model also gives more opportunities to build a solid brand reputation. Publishers in South Korea should consider how they design the book club activities to harmonise with the whole marketing plan of their company in order to manage the heavy workload they put into their book club. They also need to put more effort into concentrating on generating a buzz about the titles they want to highlight
Three essays on family formation and social mobility
No full textThesis(Doctoral) -- KDI School: Ph.D in Development Policy, 2022- Chapter 1: Time Increase at Home and Fertility Plan Change during the COVID-19 in South Korea: Mediating Effects of Housework Change (co-authored by Seulki Choi)
- Chapter 2: Future Prospects and Fertility Desire (co-authored by Seulki Choi)
- Chapter 3: Parent-Adolescent Discussions and Child’s Educational OutcomesdoctoralpublishedDa-Eun KWA
Diffusion prior guided neural attenuation field for CT metal artifact reduction in sparse-view scenario
No full textImplicit Neural Representation with Diffusion Priors for Joint Sparse-View CT reconstruction and Metal Artifact Reduction
No full textMixed Motives of Simultaneous-move Games in a Mixed Duopoly: Comments and Erratum
No full textIf the public and private firm have mixed motives about payoff in a simultaneous-move game, Choi (2006) analyzes that the resulting equilibrium turns out to be an inefficient level with the monopoly of private firm even if there are Nash equilibria. However, we find that if we use equilibrium profit, we would have solved its unique Nash equilibrium that both firms aim to maximize the relative payoffs.Mixed Duopoly
Produção e qualidade de pak choi cultivado em diferentes sistemas hidropônicos e condutividades elétricas
No full textPak choi is a leafy vegetable rich in important bioactives for human health. As this vegetable is cultivated predominantly in Europe and Asia, there is little information about it in the Brazilian literature. The aim of this study was to evaluate the production and quality of pak choi cultivated in hydroponic systems using nutrient solutions of different electrical conductivities. An experiment was set up following a randomized block design, in a 2 × 5 factorial scheme, with two hydroponic systems (NFT and Semi-hydroponic) and five levels of electrical conductivity (1.0, 2.0, 3.0, 4.0 and 5.0 dS m-1). The plants were harvested 35 days after transplanting and evaluated for the following variables: plant height, number of leaves, stem diameter, leaf area, shoot fresh and dry mass, leaf succulence, specific leaf area, petiole firmness, juice pH and soluble solids. Growth and quality variables were affected by the interaction between EC levels and hydroponic systems. The semi-hydroponic system promoted the greatest development of pak choi plants and greater tolerance to salinity. Plants cultivated in the NFT system had a lower nutritional requirement to reach maximum growth. Increase in nutrient solution EC did not affect the visual quality of pak choi, but reduced the physicochemical quality of its leaves.O pak choi é uma hortaliça folhosa rica bioativos importantes para a saúde humana. Por ser cultivado predominantemente nos continentes europeu e asiático, existem poucas informações sobre esta hortaliça na literatura brasileira. Objetivou-se avaliar a produção e a qualidade do pak choi cultivado em sistemas hidropônicos utilizando soluções nutritivas de diferentes valores de condutividade elétrica. Para isto, o experimento foi instalado seguindo o delineamento em blocos casualizados, em esquema fatorial 2 × 5, sendo dois sistemas hidropônicos (NFT e Semi-hidropônico) e cinco níveis de condutividade elétrica (1,0; 2,0; 3,0; 4,0 e 5,0 dS m-1). As plantas foram colhidas aos 35 dias após o transplantio e avaliadas quanto às seguintes variáveis: altura de planta, número de folhas, diâmetro do caule, área foliar, massa fresca e seca da parte aérea, suculência foliar, área foliar específica, firmeza do pecíolo, pH do suco e sólidos solúveis. As variáveis de crescimento e qualidade foram afetadas pela interação entre os fatores CEs e sistemas hidropônicos. O sistema semi-hidropônico proporcionou o maior desenvolvimento das plantas e maior tolerância à salinidade. As plantas cultivadas no sistema NFT apresentaram menor exigência nutricional para atingir o máximo crescimento. O aumento da CE da solução nutritiva não afetou a qualidade visual do pak choi, mas reduziu a qualidade físico-química das folhas
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