Stephen C. Levinson

Bio: Stephen C. Levinson is an academic researcher from Max Planck Society. The author has contributed to research in topics: Conversation & Cognition. The author has an hindex of 69, co-authored 309 publications receiving 38575 citations. Previous affiliations of Stephen C. Levinson include Radboud University Nijmegen & University of Cambridge.

Politeness: Some Universals in Language Usage

Abstract: This study is about the principles for constructing polite speeches. The core of it first appeared in Questions and Politeness, edited by Esther N. Goody (now out of print). It is here reissued with a fresh introduction that surveys the considerable literature in linguistics, psychology and the social sciences that the original extended essay stimulated, and suggests distinct directions for research. The authors describe and account for some remarkable parallelisms in the linguistic construction of utterances with which people express themselves in different languages and cultures. A motive for these parallels is isolated and a universal model is constructed outlining the abstract principles underlying polite usages. This is based on the detailed study of three unrelated languages and cultures: the Tamil of South India, the Tzeltal spoken by Mayan Indians in Chiapas, Mexico, and the English of the USA and England. This volume will be of special interest to students in linguistic pragmatics, sociolinguistics, applied linguistics, anthropology, and the sociology and social psychology of interaction.

Presumptive Meanings: The Theory of Generalized Conversational Implicature

Abstract: From the Publisher: When we speak, we mean more than we say. In this book Stephen C. Levinson explains some general processes that underlie presumptions in communication. This is the first extended discussion of preferred interpretation in language understanding, integrating much of the best research in linguistic pragmatics from the last two decades. Levinson outlines a theory of presumptive meanings, or preferred interpretations, governing the use of language, building on the idea of implicature developed by the philosopher H. P. Grice. Some of the indirect information carried by speech is presumed by default because it is carried by general principles, rather than inferred from specific assumptions about intention and context. Levinson examines this class of general pragmatic inferences in detail, showing how they apply to a wide range of linguistic constructions. This approach has radical consequences for how we think about language and communication.

The myth of language universals: Language diversity and its importance for cognitive science

Abstract: Talk of linguistic universals has given cognitive scientists the impression that languages are all built to a common pattern. In fact, there are vanishingly few universals of language in the direct sense that all languages exhibit them. Instead, diversity can be found at almost every level of linguistic organization. This fundamentally changes the object of enquiry from a cognitive science perspective. This target article summarizes decades of cross-linguistic work by typologists and descriptive linguists, showing just how few and unprofound the universal characteristics of language are, once we honestly confront the diversity offered to us by the world's 6,000 to 8,000 languages. After surveying the various uses of "universal," we illustrate the ways languages vary radically in sound, meaning, and syntactic organization, and then we examine in more detail the core grammatical machinery of recursion, constituency, and grammatical relations. Although there are significant recurrent patterns in organization, these are better explained as stable engineering solutions satisfying multiple design constraints, reflecting both cultural-historical factors and the constraints of human cognition. Linguistic diversity then becomes the crucial datum for cognitive science: we are the only species with a communication system that is fundamentally variable at all levels. Recognizing the true extent of structural diversity in human language opens up exciting new research directions for cognitive scientists, offering thousands of different natural experiments given by different languages, with new opportunities for dialogue with biological paradigms concerned with change and diversity, and confronting us with the extraordinary plasticity of the highest human skills.

疟原虫var基因转换速率变化导致抗原变异[英]／Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A

Abstract: 抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1（PfPMP1）与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员，通过启动转录不同的var基因变异体为抗原变异提供了分子基础。

Phd by thesis

Abstract: Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most ancient clastic carbonate slope deposits fit the submarine fan systems better. Calciclastic submarine fans are consequently rarely described and are poorly understood. Subsequently, very little is known especially in mud-dominated calciclastic submarine fan systems. Presented in this study are a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) that reveals a >250 m thick calciturbidite complex deposited in a calciclastic submarine fan setting. Seven facies are recognised from core and thin section characterisation and are grouped into three carbonate turbidite sequences. They include: 1) Calciturbidites, comprising mostly of highto low-density, wavy-laminated bioclast-rich facies; 2) low-density densite mudstones which are characterised by planar laminated and unlaminated muddominated facies; and 3) Calcidebrites which are muddy or hyper-concentrated debrisflow deposits occurring as poorly-sorted, chaotic, mud-supported floatstones. These

Amazon's Mechanical Turk A New Source of Inexpensive, Yet High-Quality, Data?

Abstract: Amazon's Mechanical Turk (MTurk) is a relatively new website that contains the major elements required to conduct research: an integrated participant compensation system; a large participant pool; and a streamlined process of study design, participant recruitment, and data collection. In this article, we describe and evaluate the potential contributions of MTurk to psychology and other social sciences. Findings indicate that (a) MTurk participants are slightly more demographically diverse than are standard Internet samples and are significantly more diverse than typical American college samples; (b) participation is affected by compensation rate and task length, but participants can still be recruited rapidly and inexpensively; (c) realistic compensation rates do not affect data quality; and (d) the data obtained are at least as reliable as those obtained via traditional methods. Overall, MTurk can be used to obtain high-quality data inexpensively and rapidly.

Politeness : Some Universals in Language Usage

Abstract: Symbols and abbreviations Foreword John J. Gumperz Introduction to the reissue Notes 1. Introduction 2. Summarized argument 3. The argument: intuitive bases and derivative definitions 4. On the nature of the model 5. Realizations of politeness strategies in language 6. Derivative hypotheses 7. Sociological implications 8. Implications for language studies 9. Conclusions Notes References Author index Subject index.