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Stuart Davis 현대문법학회 2001 현대문법연구 Vol.24 No.-
Stuart Davis. 2001. The Distribution of Aspirated Stops and /h/ in American English. Studies in Modern Grammar 24, 1-23. Languages that have both aspirated stops and the phoneme /h/ frequently manifest a close parallel in their distribution. Previous work in phonology either has failed to recognize this close parallel or does not formally account for it. For example, virtually none of the work on American English phonology observes the similarity of distribution that exists between /h/ and aspirated stops. In this paper we illustrate the close parallelism and then offer an analysis of it within Optimality Theory. The organization of this paper is as follows. In Section I we present the data that show the parallel distribution between /h/ and aspirated stops in American English. In Section 2 we develop an optimality-theoretic analysis accounting for the distribution of aspirated stops and /h/ in American English in a unified way. In Section 3 we discuss two other possible approaches in accounting for the distribution of /h/ and aspirated stops in American English and note their shortcomings. Finally, in Section 4 we briefly consider the distribution of aspiration and /h/ beyond American English and show the range of distribution patterns that are predicted to occur under the optimality-theoretic approach.
Davis, William C.,Park, Kun Taek The Korean Society of Food Hygiene and Safety 2018 한국식품위생안전성학회지 Vol.33 No.4
19세기말 Mycobacterium avium subsp. paratuberculosis(Map)이 요네병(Johne's disease)의 원인균임이 밝혀진 이후, 불현성 감염된 동물들의 국제적 이동은 요네병을 전세계로 퍼뜨리기 시작하였다. 이러한 요네병이 축산분야에 나타남과 동시에 새로운 형태의 대장염으로서 요네병과 같은 증상을 나타내는 질병(크론병)이 사람에게서도 나타나기 시작하였다. 그러나 Map이 이러한 새로운 대장염의 원인균이며 인수공통전염병의 원인체라는 인식은 20세기 후반 이러한 질병을 앓고 있는 사람의 조직으로부터 Map을 검출할 수 있게 되고서야 나타나기 시작했다. 본 총설은 어떻게 Map이 축산분야와 사람의 공중보건 측면에서 심각한 문제를 야기시키게 되었고, Map 감염에 의한 대장염 환자의 치료가 어떻게 발전되어 왔는지 간단히 요약하고, 축산에서 Map의 통제를 위한 새로운 백신개발 전략에 대하여 소개한다. Since the discovery that Mycobacterium aviumsubsp. paratuberculosis (Map) is the causative agent of Johne's disease (JD) in cattle at the end of the nineteenth century, movement of livestock latently infected with Map has led to the spread of JD throughout the world. A new form of enteritis with clinical features of JD in cattle appeared in humans concurrent with the appearance of Map as a disease problem in livestock. The demonstration that Map is a zoonotic pathogen and the causative agent of the new form of enteritis in humans, however, wasn't recognized until late in the twentieth century when methods were developed to detect the presence Map in tissues from patients with the new form of clinical enteritis. The objective of this short review is to provide a brief history explaining how Map has become a major disease problem in livestock and humans and then provide a review of the progress that has been made in treating patients with an enteritis caused by Map and the strategies underway to develop a vaccine to control infection in livestock.
Davis, Kristofer,Kass, M.Andy,Li, Yaoguo Korean Society of Earth and Exploration Geophysici 2011 지구물리와 물리탐사 Vol.14 No.1
We present a method for modelling the terrain response of gravity gradiometry surveys utilising an adaptive quadtree mesh discretization. The data- and terrain-dependent method is tailored to provide rapid and accurate terrain corrections for draped and barometric airborne surveys. The surface used in the modelling of the terrain effect for each datum is discretized automatically to the largest cell size that will yield the desired accuracy, resulting in much faster modelling than full-resolution calculations. The largest cell sizes within the model occur in areas of minimal terrain variation and at large distances away from the datum location. We show synthetic and field examples for proof of concept. In the presented field example, the adaptive quadtree method reduces the computational cost by performing 351 times fewer calculations than the full model would require while retaining an accuracy of one E$\"{o}$tv$\"{o}$s for the gradient data. The method is also used for the terrain correction of the gravity field and performed 310 times faster compared with a calculation of the full digital elevation model.
Syllable Structure for an Artificial Language Based on Universal Principles
Davis, Stuart Institute for University Language Sejong Instituti 2002 Journal of Universal Language Vol.3 No.1
This paper discusses the type of syllables that should be found in a spoken artificial language based on the common types of syllables found in natural languages. The paper also examines the various units within the syllable, such as onset, nucleus, and coda, suggesting how the preferred structure of these units may be incorporated into an artificial language. One proposal that will emerge is that an artificial language needs to allow for at least a slight degree of complexity in its syllable structure. The paper further discusses related issue of prosody such as word stress and minimal word length in an artificial language. The paper concludes with an overview of the proposals made about syllable structure for an artificial language.
Photocatalytic hydrogen evolution from biomass conversion
Davis Kayla Alicia,Yoo Sunghoon,Shuler Eric W.,Sherman Benjamin D.,이승현,Leem Gyu 나노기술연구협의회 2021 Nano Convergence Vol.8 No.6
Biomass has incredible potential as an alternative to fossil fuels for energy production that is sustainable for the future of humanity. Hydrogen evolution from photocatalytic biomass conversion not only produces valuable carbon-free energy in the form of molecular hydrogen but also provides an avenue of production for industrially relevant biomass products. This photocatalytic conversion can be realized with efficient, sustainable reaction materials (biomass) and inexhaustible sunlight as the only energy inputs. Reported herein is a general strategy and mechanism for photocatalytic hydrogen evolution from biomass and biomass-derived substrates (including ethanol, glycerol, formic acid, glucose, and polysaccharides). Recent advancements in the synthesis and fundamental physical/mechanistic studies of novel photocatalysts for hydrogen evolution from biomass conversion are summarized. Also summarized are recent advancements in hydrogen evolution efficiency regarding biomass and biomass-derived substrates. Special emphasis is given to methods that utilize unprocessed biomass as a substrate or synthetic photocatalyst material, as the development of such will incur greater benefits towards a sustainable route for the evolution of hydrogen and production of chemical feedstocks.
Capturing sustainable fashion purchase behavior of Hispanic consumers in the US
Davis Lizhu,Dabas Chitra 한국마케팅과학회 2021 Journal of Global Fashion Marketing Vol.12 No.3
Despite the vital role Hispanic consumers play in the U.S. apparel market, research on their sustainable apparel consumption behavior is limited. This study investigated the influence of normative expectations on young Hispanic consumers’ organic apparel purchasing behavior. A self-administered online survey was used to collect data from a population of Hispanic college students. The proposed conceptual model was tested using structural equation modeling (SEM). The study results revealed that social norms did not directly influence organic apparel purchase behavior of Hispanic consumers. Instead, social norms determined personal norms and organic apparel knowledge, which then affected the purchase behavior. Perceived health benefits also significantly affected young Hispanic consumers’ purchase behavior of organic apparel. We also found that organic apparel knowledge significantly affected the perceived quality and health benefits of organic apparel. This study contributed to the literature by 1) understanding the complex relationships of social norms with personal norms, organic apparel knowledge, and organic apparel purchase behavior of Hispanic consumers, and 2) incorporating perceived product value into the conceptual model. Findings of this study can help sustainable apparel manufacturers and retailers to develop effective marketing strategies for targeting Hispanic consumers in the US apparel markets.
AutoCor: A Query Based Automatic Acquisition of Corpora of Closely-related Languages
( Davis Muhajereen D. Dimalen ),( Rachel Edita O. Roxas ) 한국언어정보학회 2007 학술대회 논문집 Vol.2007 No.-
AutoCor is a method for the automatic acquisition and classification of corpora of documents in closely-related languages. It is an extension and enhancement of CorpusBuilder, a system that automatically builds specific minority language corpora from a closed corpus, since some Tagalog documents retrieved by CorpusBuilder are actually documents in other closely-related Philippine languages. AutoCor used the query generation method odds ratio, and introduced the concept of common word pruning to differentiate between documents of closely-related Philippine languages and Tagalog. The performance of the system using with and without pruning are compared, and common word pruning was found to improve the precision of the system.
Davis, Richard J. 한국화재보험협회 2009 防災와 保險 Vol.131 No.-
초고층 건물은 그 높이에 비례하여 복잡성이 증가하므로 소방 측면에서도 다양한 문제들이 발생하게 된다. 초고층 건물은 건물 이용자의 인원 수, 재산가치, 사고 시 사회에 미칠 파장 등으로 인해 높은 수준의 화재안전대책이 요구된다.
Reimbursement for Preventive Health Services: The U.S. Experience
Davis, Karen The Korean Society for Preventive Medicine 1989 Journal of Preventive Medicine and Public Health Vol.22 No.1
This paper examines the failure to promote adequate preventive health care in the U.S. It focuses specifically on the preventive health services of screening, counseling, and immunization. It explores evidence on their effectiveness, as well as coverage under current private and public health insurance plans. It concludes with a proposal to expand health insurance coverage for preventive services and to reimburse physicians directly for preventive health services provided to patients.