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Sample records for large vocabulary continuous

  1. A Russian Keyword Spotting System Based on Large Vocabulary Continuous Speech Recognition and Linguistic Knowledge

    Directory of Open Access Journals (Sweden)

    Valentin Smirnov

    2016-01-01

    Full Text Available The paper describes the key concepts of a word spotting system for Russian based on large vocabulary continuous speech recognition. Key algorithms and system settings are described, including the pronunciation variation algorithm, and the experimental results on the real-life telecom data are provided. The description of system architecture and the user interface is provided. The system is based on CMU Sphinx open-source speech recognition platform and on the linguistic models and algorithms developed by Speech Drive LLC. The effective combination of baseline statistic methods, real-world training data, and the intensive use of linguistic knowledge led to a quality result applicable to industrial use.

  2. Towards very large vocabulary word recognition

    Science.gov (United States)

    Waibel, A.

    1982-11-01

    In this paper, preliminary considerations and some experimental results are presented in an effort to design Very Large Vocabulary Recognition (VLVR) systems. We will first consider the applicability of current recognition techniques and argue their inadequacy for VLVR. Possible alternate strategies will be explored and their potential usefulness statistically evaluated. Our results indicate that suprasegmental cues such as syllabification, stress patterns, rhythmic patterns, rhythmic patterns and the voiced - unvoiced patterns in the syllables of a word provide powerful mechanisms for search space reduction. Suprasegmental feature could thus operate in a complementary fashion to segmental features.

  3. Pronunciation Modeling for Large Vocabulary Speech Recognition

    Science.gov (United States)

    Kantor, Arthur

    2010-01-01

    The large pronunciation variability of words in conversational speech is one of the major causes of low accuracy in automatic speech recognition (ASR). Many pronunciation modeling approaches have been developed to address this problem. Some explicitly manipulate the pronunciation dictionary as well as the set of the units used to define the…

  4. How Large a Vocabulary Is Needed for Reading and Listening?

    Science.gov (United States)

    Nation, I. S. P.

    2006-01-01

    This article has two goals: to report on the trialling of fourteen 1,000 word-family lists made from the British National Corpus, and to use these lists to see what vocabulary size is needed for unassisted comprehension of written and spoken English. The trialling showed that the lists were properly sequenced and there were no glaring omissions…

  5. On Using Very Large Target Vocabulary for Neural Machine Translation

    OpenAIRE

    Jean, Sébastien; Cho, Kyunghyun; Memisevic, Roland; Bengio, Yoshua

    2014-01-01

    Neural machine translation, a recently proposed approach to machine translation based purely on neural networks, has shown promising results compared to the existing approaches such as phrase-based statistical machine translation. Despite its recent success, neural machine translation has its limitation in handling a larger vocabulary, as training complexity as well as decoding complexity increase proportionally to the number of target words. In this paper, we propose a method that allows us ...

  6. Network for the recognition of a large spoken vocabulary

    Energy Technology Data Exchange (ETDEWEB)

    De Mori, R.; Mong, Y.; Palakal, M.

    1983-01-01

    A new solution for accessing a large lexicon in continuous speech is proposed. The words of a lexicon and their relations with syllables, acoustic and prosodic cues are represented by a network similar to semantic networks used in artificial intelligence for knowledge representation. The network for lexical representation is generated by a graph grammar in which rules are applied either when suitable acoustic cues are detected in the signal or when model driven predictions are made. The piece of network generated by the application of a set of rules contains nodes and links. Nodes are processes capable of executing algorithms. Links are channels through which messages between processes can be exchanged. The type of a link specifies the type of message that can be exchanged. The model exhibits a high degree of parallelism and allows to efficiently perform intersections of large sets of descriptions. Some nodes correspond to word classes which are hypothesized when some sets of sufficient conditions are detected in the data. These conditions are hypotheses about robust features called primary phonetic features. 11 references.

  7. System Framework for Large Vocabulary Continuous Speech Multimedia Intelligence Processing%大词汇量连续语音声像情报处理系统框架

    Institute of Scientific and Technical Information of China (English)

    朱双华; 金鑫; 朱立新

    2012-01-01

    分析了声像情报的自动标注与检索的研究概况及其关键技术,提出了声像情报的自动化处理框架以及基于语音内容的情报服务方案,讨论了声像情报特征提取、索引和分析过程中采用的主要情报内容特征。该方案在普通话广播语音和电话语音等数据测试中,准确率均在92%以上。%The automatic annotation and the retrieval of multimedia intelligence require large vo- cabulary speech recognition, natural language processing and information retrieval technologies. The automatic annotation and the retrieval of multimedia intelligence are studied and key tech- niques are analyzed. Then, a framework for multimedia intelligence automatic annotation and service is proposed. The main characteristics of speech recognition, speech indexing and intelli- gence analysis are investigated. The news broadcast and telephone audio data for annotation and retrieval are tested. Testing results show that the accuracy rate of the method is over 92%.

  8. Measuring business continuity programmes in large organisations.

    Science.gov (United States)

    Green, Christopher

    2014-01-01

    In the field of business continuity management, organisations commit sums of money (often very large sums) to develop and maintain their continuity capability. Despite this, there is almost no measurement of whether this expense offers value for money, or whether it is targeted in the right areas. This paper will explain some methods of measuring components of a business continuity programme. The important outputs from this measurement activity are to demonstrate that an organisation's continuity capability is improving over time, and to identify areas of weakness that should be targeted during future work.

  9. Indexing Large Visual Vocabulary by Randomized Dimensions Hashing for High Quantization Accuracy: Improving the Object Retrieval Quality

    Science.gov (United States)

    Yang, Heng; Wang, Qing; He, Zhoucan

    The bag-of-visual-words approach, inspired by text retrieval methods, has proven successful in achieving high performance in object retrieval on large-scale databases. A key step of these methods is the quantization stage which maps the high-dimensional image feature vectors to discriminatory visual words. In this paper, we consider the quantization step as the nearest neighbor search in large visual vocabulary, and thus proposed a randomized dimensions hashing (RDH) algorithm to efficiently index and search the large visual vocabulary. The experimental results have demonstrated that the proposed algorithm can effectively increase the quantization accuracy compared to the vocabulary tree based methods which represent the state-of-the-art. Consequently, the object retrieval performance can be significantly improved by our method in the large-scale database.

  10. A commercial large-vocabulary discrete speech recognition system: DragonDictate.

    Science.gov (United States)

    Mandel, M A

    1992-01-01

    DragonDictate is currently the only commercially available general-purpose, large-vocabulary speech recognition system. It uses discrete speech and is speaker-dependent, adapting to the speaker's voice and language model with every word. Its acoustic adaptability is based in a three-level phonology and a stochastic model of production. The phonological levels are phonemes, augmented triphones (phonemes-in-context or PICs), and steady-state spectral slices that are concatenated to approximate the spectra of these PICs (phonetic elements or PELs) and thus of words. Production is treated as a hidden Markov process, which the recognizer has to identify from its output, the spoken word. Findings of practical value to speech recognition are presented from research on six European languages.

  11. Teaching Vocabulary

    Science.gov (United States)

    Lessard-Clouston, M.

    2013-01-01

    Vocabulary is central to English language teaching. Without sufficient vocabulary, students cannot understand others or express their own ideas. Teachers who find the task of teaching English vocabulary a little daunting are not alone! This book presents important issues from recent vocabulary research and theory so that teachers may approach…

  12. Teaching Vocabulary

    Science.gov (United States)

    Lessard-Clouston, M.

    2013-01-01

    Vocabulary is central to English language teaching. Without sufficient vocabulary, students cannot understand others or express their own ideas. Teachers who find the task of teaching English vocabulary a little daunting are not alone! This book presents important issues from recent vocabulary research and theory so that teachers may approach…

  13. Large deviations for Glauber dynamics of continuous gas

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    This paper is devoted to the large deviation principles of the Glauber-type dynamics of finite or infinite volume continuous particle systems.We prove that the level-2 empirical process satisfies the large deviation principles in the weak convergence topology,while it does not satisfy the large deviation principles in the T-topology.

  14. TEACHING VOCABULARY THROUGH SENTENCES

    Directory of Open Access Journals (Sweden)

    irfan tosuncuoglu

    2015-12-01

    Almost every teacher is certain about that vocabulary is an important facet of learning a second language. It may be more important than grammar, at least in so far as this concerns communication , and particularly in the early stages when learners seem to understand that amassing a basic vocabulary is very important to fluency in another language. As a rule, receptive vocabulary exceeds productive vocabulary and why listening with comprehension and speaking with comprehension are two very different things—the latter a more difficult cognitive process than the former. Furthermore, vocabulary acquisition is highly idiosyncratic and depends largely on the learner and her or his individual learning styles and cognitive abilities. No two people learn alike. In particular, as understanding and fluency increases,  individual interests and even needs will change, which then requires teacher-assisted guidance and remediation vis-à-vis the compilation of a specified and nuanced vocabulary that is tailored to the learner’s more practical linguistic needs, whatever these might be. In this case, new vocabulary items are more likely to be recalled and communicative. Essential to such an approach to teaching vocabulary acquisition, it is argued here, is exposure to authentic language, that is, reading, writing, listening, and speaking in class that both engages the visual, tactile, and aural-oral senses and imprints. In the case of texts, it is paramount that the comprehension level be such that the learner can guestimate with a nigh degree of accuracy the meaning and proper usage of new vocabulary items without a dictionary and thus from their context. And the more often these new vocabulary items appear, the more likely it is that their full meaning will be understood and committed to memory.  For that reason we wanted to make use of sentences in vocabulary teaching.

  15. Vocabulary notebooks

    OpenAIRE

    KOZETA HYSO

    2012-01-01

    Vocabulary notebooks are one way of promoting learner independence. Introducing vocabulary notebooks to provide the learners with an area of language learning where they could be given a relatively high level of independence that would build their confidence in their ability to act independently in terms of vocabulary learning. This article is focused on the effectiveness of keeping the vocabulary notebooks to empower the learner’s independence on their foreign language learning and also to e...

  16. Visualizing Vocabulary

    Science.gov (United States)

    Skophammer, Karen

    2012-01-01

    Vocabulary can become tedious and a chore if it is approached as such. By making art terms and vocabulary meaningful, students will remember and use them for years to come. In this article, the author describes two vocabulary review projects that work wonderfully and create great works of art: (1) cursive creature rubbings; and (2) bubbling bodies…

  17. Visualizing Vocabulary

    Science.gov (United States)

    Skophammer, Karen

    2012-01-01

    Vocabulary can become tedious and a chore if it is approached as such. By making art terms and vocabulary meaningful, students will remember and use them for years to come. In this article, the author describes two vocabulary review projects that work wonderfully and create great works of art: (1) cursive creature rubbings; and (2) bubbling bodies…

  18. Large Terrain Continuous Level of Detail 3D Visualization Tool

    Science.gov (United States)

    Myint, Steven; Jain, Abhinandan

    2012-01-01

    This software solved the problem of displaying terrains that are usually too large to be displayed on standard workstations in real time. The software can visualize terrain data sets composed of billions of vertices, and can display these data sets at greater than 30 frames per second. The Large Terrain Continuous Level of Detail 3D Visualization Tool allows large terrains, which can be composed of billions of vertices, to be visualized in real time. It utilizes a continuous level of detail technique called clipmapping to support this. It offloads much of the work involved in breaking up the terrain into levels of details onto the GPU (graphics processing unit) for faster processing.

  19. Integrating induced probability into decoding for large vocabulary continuous speech recognition

    Institute of Scientific and Technical Information of China (English)

    YANG Zhanlei; LIU Wenju; CHAO Hao

    2012-01-01

    This paper integrates location information of frames into conventional acoustic model (AM) and language model (LM) likelihoods, in order to distinguish potential path can- didates more precisely at decoding stage. This paper proposes an induced probability, which represents location information of frames within the whole acoustic space. By integrating the induced probability, the decoder is directed to search within the most promising regions of acoustic space. Promising paths are enhanced and unlikely paths are weakened. Experiments conducted on Chinese Putonghua show that the character error rate is reduced by 10.95% rel- atively without increasing decoding complexity significantly. Finally, pruning analysis shows that integrating location information of frames into traditional decoding framework is helpful for improving system performance.

  20. Small Vocabulary with Saliency Matching for Video Copy Detection

    DEFF Research Database (Denmark)

    Ren, Huamin; Moeslund, Thomas B.; Tang, Sheng

    2013-01-01

    of vocabulary. BoW descriptors under a small vocabulary can be both robust and efficient, while keeping high recall rate compared with large vocabulary. However, the high false positives exists in small vocabulary also limits its application. To address this problem in small vocabulary, we propose a novel...

  1. Nonlinear Time-Frequency Distributions of Spectrum Energy Operator in Large Vocabulary Mandarin Speaker Independent Speech Recognition System

    Institute of Scientific and Technical Information of China (English)

    Fadhil H. T. Al-dulaimy; WANG Zuoying(王作英)

    2003-01-01

    This work demonstrates the use of the nonlinear time-frequency distribution (NLTFD) of a discrete time energy operator (DTEO) based on amplitude modulation-frequency modulation demodulation techniques as a feature in speech recognition. The duration distribution based hidden Markov module in a speaker independent large vocabulary mandarin speech recognition system was reconstructed from the feature vectors in the front-end detection stage. The goal was to improve the performance of the existing system by combining new features to the baseline feature vector. This paper also deals with errors associated with using a pre-emphasis filter in the front end processing of the present scheme, which causes an increase in the noise energy at high frequencies above 4 kHz and in some cases degrades the recognition accuracy. The experimental results show that eliminating the pre-emphasis filters from the pre-processing stage and using NLTFD with compensated DTEO combined with Mel frequency cepstrum components give a 21.95% reduction in the relative error rate compared to the conventional technique with 25 candidates used in the test.

  2. The pace of vocabulary growth helps predict later vocabulary skill.

    Science.gov (United States)

    Rowe, Meredith L; Raudenbush, Stephen W; Goldin-Meadow, Susan

    2012-01-01

    Children vary widely in the rate at which they acquire words--some start slow and speed up, others start fast and continue at a steady pace. Do early developmental variations of this sort help predict vocabulary skill just prior to kindergarten entry? This longitudinal study starts by examining important predictors (socioeconomic status [SES], parent input, child gesture) of vocabulary growth between 14 and 46 months (n = 62) and then uses growth estimates to predict children's vocabulary at 54 months. Velocity and acceleration in vocabulary development at 30 months predicted later vocabulary, particularly for children from low-SES backgrounds. Understanding the pace of early vocabulary growth thus improves our ability to predict school readiness and may help identify children at risk for starting behind.

  3. Learning Strategies in Acquisition of Medical Vocabulary

    Institute of Scientific and Technical Information of China (English)

    田俊英; 蒋东坡

    2016-01-01

    Medical vocabulary consists of so many words and terms.Medical students are often terrified by large vocabulary.The paper aimed to analyze the problems lie in acquisition of medical vocabulary,review literature of learning strategies of medical vocabulary,and offers a few simple rules for students to follow to facilitate their acquisition of medical vocabulary.

  4. Vocabulary knowledge

    Institute of Scientific and Technical Information of China (English)

    严爽

    2016-01-01

    Knowing a word refers to more than just a matter of knowing its form, meaning, pronunciation and spelling. It also refers to one's knowledge of the relationships the word is involved in, such as its collocations, semantic associations and so on. Words are not isolated entities. This paper focuses on vocabulary knowledge and helps us get an idea of what needs to be learned and the process of English vocabulary learning.

  5. Lyapunov exponents of linear cocycles continuity via large deviations

    CERN Document Server

    Duarte, Pedro

    2016-01-01

    The aim of this monograph is to present a general method of proving continuity of Lyapunov exponents of linear cocycles. The method uses an inductive procedure based on a general, geometric version of the Avalanche Principle. The main assumption required by this method is the availability of appropriate large deviation type estimates for quantities related to the iterates of the base and fiber dynamics associated with the linear cocycle. We establish such estimates for various models of random and quasi-periodic cocycles. Our method has its origins in a paper of M. Goldstein and W. Schlag. Our present work expands upon their approach in both depth and breadth. We conclude this monograph with a list of related open problems, some of which may be treated using a similar approach.

  6. Mobile English Vocabulary Learning Based on Concept-Mapping Strategy

    Science.gov (United States)

    Liu, Pei-Lin

    2016-01-01

    Numerous researchers in education recognize that vocabulary is essential in foreign language learning. However, students often encounter vocabulary that is difficult to remember. Providing effective vocabulary learning strategies is therefore more valuable than teaching students a large amount of vocabulary. The purpose of this study was to…

  7. Development of MWID continuous zoom with large zoom range

    Science.gov (United States)

    Sanson, Mark C.; Cornell, James; Roy, Brian; Herbert, Stephen; Woodard, Ken; Sawyer, Kent

    2011-06-01

    A thermal imaging zoom system has been developed for the mid wave infrared band with greater than 30X zoom range. The zoom system provides continuous changes in the field of view from the narrow field of view to the wide field of view. Athermalization was also a key feature included in the design. An active thermal compensation approach is being used to cover a broad thermal range. A preloaded rail approach is used to maintain boresight and vibration requirements. The final optical layout and mechanical design resulted in a system suitable for tactical and other harsh environments. The current design is very compact for the extremely large zoom range but, the lens layout also provides adequate space for folding. In this way the zoom system can be easily configured for applications with compact space claims such as small turrets or gimbals. The fundamental optical design has also been found to be capable of accommodating different camera formats (focal plane array size and F number).

  8. VOCABULARY STRATEGIES AND VOCABULARY LEARNING

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    This research is a comparative study of Chinese EFLgradutes′vocabulary strategies applied in their EGeneralAP(English for General Academic Purposes)and ESpecialAP(English for Special Academic Purpose)learning.Participantswere the first-year graduates of non-English major in ChinaPharmaceutical University(N=102).The present study uses ataxonomy of strategies developed by O’Malley and Chamot(1990),which was modified to more accurately reflectvocabulary strategies(altogether 31 sub-strategy variables within16 strategies).Analysis through SAS(Statistic Analysis System)on the collected date has revealed that:1)Learners apply more types of vocabulary stategies inEGeneralAP than in ESpecialAP vocabulary learning.2)Translation and Extensive Reading gain higher frequencyof application in ESpecialAP learning.3)11 vocabulary strategies strongly predict EGeneralAPvocabulary achievement and only 6 strategies strongly predictESpecialAp vocabulary achievement.At the end of the paper,some practical suggestions aremade for EFL graduate teachers to adjust their teaching targetand methods.

  9. CONTINUOUS IMPROVEMENT PRACTICE IN LARGE ENTERPRISES: STUDY RESULTS

    Directory of Open Access Journals (Sweden)

    Dorota Stadnicka

    2015-03-01

    Full Text Available Continuous improvement is indispensable for ensuring the company's development and its survival on the constantly changing global market. Continuous improvement is particularly important in the quality and production management systems. A company should deliver a product compliant with a client's requirements in a specified time and at an appropriate price. That is why, continuous improvement refers to different areas of an organization's functioning and it is an integral part of Lean Manufacturing. This article presents the results of the study conducted in production enterprises on a limited area. The aim of the study was the assessment of the implementation of continuous improvement in Lean Manufacturing, and, in particular, employees' involvement in the problem identification and in reporting improvements as well as the way of motivating employees to involve themselves. The authors also tried to identify the factors influencing the elements of a continuous improvement system.

  10. Developing Mathematical Vocabulary.

    Science.gov (United States)

    Monroe, Eula Ewing; Orme, Michelle P.

    2002-01-01

    This article discusses the importance of mathematical vocabulary, difficulties students encounter in learning this vocabulary, and some instructional strategies. Two general methods for teaching vocabulary are discussed: context and explicit vocabulary instruction. The methods are summarized as they apply to mathematical vocabulary instruction and…

  11. Palula Vocabulary

    OpenAIRE

    Liljegren, Henrik; Haider, Naseem

    2011-01-01

    The main purpose of this volume is to provide a complement to Towards a grammatical description of Palula (Liljegren 2008). The 1460 main entries included in the present work are limited to those lexical items that are cited or exemplified in the aforementioned work. The work is the result of linguistic research in and with the Palula community (Pakistan). It contains much of the basic vocabulary used in today's Palula, presented along with illustrative example sentences, grammatical informat...

  12. Cerium dioxide with large particle size prepared by continuous precipitation

    Institute of Scientific and Technical Information of China (English)

    李梅; 王觅堂; 柳召刚; 胡艳宏; 吴锦绣

    2009-01-01

    Cerium dioxide(CeO2) has attracted much attention and has wide applications such as automotive exhaust catalysts,polishing materials for optical glasses and additives for advanced glasses,as well as cosmetic materials.The particle size and its distribution are key factors to the performance of the materials in the functional applications.However,control of particle size is still a challenge in materials synthesis.Therefore,continuous precipitation of cerium oxalate(precursor of ceria) was carried out at dif...

  13. Continuous Earth Rotation Monitoring with the large Ring Laser G

    Science.gov (United States)

    Schreiber, K. U.; Klügel, T.; Wells, J. P.; Holdaway, J.; Gebauer, A.

    2010-12-01

    Over the last decade, ring lasers have found their way back into the research laboratories. By scaling them up in size, they have gained several orders of magnitude over their commercial counterparts, both in sensitivity and stability. Unlike the established space geodetic techniques SLR/LLR and VLBI, ring lasers can be operated autonomous and continuously. Furthermore laser gyros reach a resolution of 1 pico-rad/s already after an integration time of less than 2 hours. This opens the door for the research of high frequency variations in Earth rotation. Over the last year we have improved the sensor sensitivity by as much as a factor of 3 in order to reach the shot noise limit at 2.1x10-11 rad/s/sqrt(Hz). So the regime of ΔΩ/Ω ≈ 10-9 of Earth rotation becomes accessible to a local rotation sensor. Recent efforts concentrate on the reduction of scale factor instability by controlling the drift induced by atmospheric pressure variations and the corresponding temperature changes from adiabatic expansion and compression of the local air as well as a new approach to the modeling of the behavior of the sensor location. This talk outlines recent progress in Sagnac interferometry.

  14. Precision continuous high-strength Azimuth track for large telescopes

    Science.gov (United States)

    Antebi, Joseph; Kan, Frank W.

    2003-01-01

    A novel track joint was developed for the azimuth track of the 50-m diameter Large Millimeter Telescope (LMT) now under construction in Mexico at an elevation of 4,600 m. The track, which is 430 mm wide by 230 mm deep, must be flat to within +/- 0.3 mm, and the material hardness at least 290 Brinell. This design uses a partial penetration narrow gap groove weld on the top surface of the track and a splice plate welded to the underside of the track. Pre-camber of the joint compensates for weld shrinkage which is small because of the use of the narrow gap groove weld. The residual deviations from flatness are reduced to the required tolerance by adjusting anchor bolts using an optimization procedure. The feasibility of the design with respect to fabrication, strength, fatigue, and alignment was demonstrated by detailed finite element analyses, trial welding and alignment of full scale joints, and testing of the mechanical properties of the joint and adjacent metal.

  15. IMPROVING VOCABULARY TEACHING IN INTENSIVE READING

    Institute of Scientific and Technical Information of China (English)

    1996-01-01

    IntroductionIn China,intensive reading is the main method for teaching English.One feature of the textbooks isthat they all have large quantities of new words in each text,so vocabulary is one of the mostimportant aspects of this course.Recently,I conducted a survey among students who entered thePetroleum University in Shandong.To the question‘What is the greatest problem in your Englishstudies?’,82 out of the t00 students answered-vocabulary.This,to some extent,suggests that ourapproaches to vocabulary teaching should be improved.This article explores more effective ways toteach vocabulary.It suggests the idea of classifying and grouping vocabulary items and how to teachthem differently.A series of task-based activities are recommended to present and review vocabulary.

  16. English Vocabulary Teaching Strategies

    Institute of Scientific and Technical Information of China (English)

    王敏

    2012-01-01

    Vocabulary is very necessary in language teaching and acquisition.If students have a certain amount of vocabulary,they will overcome many difficulties in reading.listening、 speaking and writing.In vocabulary teaching,scholars have been working hard to find better ways.This paper attempts to find how to improve students’ enthusiasm of learning vocabulary and teach vocabulary more successfully and effectively.

  17. Review Article: Instructed Second Language Vocabulary Learning

    Science.gov (United States)

    Schmitt, Norbert

    2008-01-01

    This article overviews current research on second language vocabulary learning. It concludes that a large vocabulary is necessary to function in English: 8000-9000 word families for reading, and perhaps as many as 5000-7000 families for oral discourse. In addition, a number of word knowledge aspects need to be learned about each lexical item.…

  18. Implicit and Explicit Cognitive Processes in Incidental Vocabulary Acquisition

    Science.gov (United States)

    Ender, Andrea

    2016-01-01

    Studies on vocabulary acquisition in second language learning have revealed that a large amount of vocabulary is learned without an overt intention, in other words, incidentally. This article investigates the relevance of different lexical processing strategies for vocabulary acquisition when reading a text for comprehension among 24 advanced…

  19. Teachers’ Vocabulary Developing Educational Awareness

    DEFF Research Database (Denmark)

    Lund, Lea

    From a perspective of teachers’ continuing professional development (CPD) this paper considers the importance of the influence of teachers’ vocabulary in relation to their understanding and development of teaching practices. As the teacher spends most of her/his career teaching inside the classroom...... educational systems, teacher agency is an important issue. If teacher agencyis understood as the teachers’ active contribution to shaping their work and its conditions – for the overall quality of education (Biesta et al. 2015) then there may be a case for focusing on the development of teacher’s vocabulary...... interview techniqu, 2007) to examine the teachers’ ‘practical reasoning’, to develop (elicitation and reconstruction) a ‘practical argument’ (following: Fenstermacher & Richardson 1993), which points to a process of five premises. In the data collecting and in the analysis of the teachers’ vocabulary...

  20. Teaching English Vocabulary

    Institute of Scientific and Technical Information of China (English)

    郝丹

    2014-01-01

    Grammar provides the overall patterns, and vocabulary is the material to put in the patterns. Without grammar we can convey a little, but without vocabulary we can convey nothing. Vocabulary teaching is an indispensable part of English curriculum. Art is a kind of creation. Teaching vocabulary artistically can make teachers and students build up created consciousness in teaching and learning vocabulary activities and teachers put their experience and emotions towards beauty into teaching activities to raise general vocabulary teaching activities to appreciation of beauty and creative activities, convert bitter into happy, tense into ease. Thus the non-intellectual factors like motive, interest, emotion, self-confidence and so on can be developed naturally and they will elaborate a great part in English vocabulary teaching. At the same time, the relationship between teachers and students can get improved fundamentally furthest and it pushes vocabulary teaching powerfully in turn.

  1. Rote Memorization of Vocabulary and Vocabulary Development

    Science.gov (United States)

    Yang, Weidong; Dai, Weiping

    2011-01-01

    Rote memorization of vocabulary has long been a common way for Chinese students to learn lexical items. Cultural, educational background and traditional teaching practice in China are identified to be the factors that contribute to many students' heavy reliance on memorization as their sole approach to vocabulary learning. In addition to rote…

  2. On Vocabulary Learning

    Institute of Scientific and Technical Information of China (English)

    郑洁

    2013-01-01

    An efficient vocabulary learning strategy can supply students with exact meanings and usage of words. There are many differences between Chinese and English,so the result of memorizing vocabulary by rote is always not good. The paper holds the Incidental Vocabulary Learning to improve the English ability.

  3. Measuring Vocabulary: An overview of four types of vocabulary tests

    OpenAIRE

    Helga Hilmarsdóttir 1985

    2010-01-01

    In this essay four types of vocabulary tests are examined and the focus is on the variety in vocabulary tests. The main incentive with writing this essay was to make an overview of vocabulary measurement tools and to examine whether there existed a standardized vocabulary test. In the first chapter an attempt is made to answer the question of what vocabulary knowledge is. Receptive and productive knowledge of vocabulary is discussed as well as the distinction of vocabulary into breadth and...

  4. Vocabulary Learning Strategies

    OpenAIRE

    Craven, Laurence

    2015-01-01

    The prominent role of vocabulary knowledge in second or foreign language learning has been recently recognized by theorists and researchers in the field. This article aims to provide a digest of recent research on vocabulary learning strategies specifically in the English as a foreign language context in Japan. In Japan where there is minimal exposure to English in daily life and where word knowledge is often tested, teachers should be informing learners about vocabulary learning strategies a...

  5. Tagging vs. Controlled Vocabulary

    DEFF Research Database (Denmark)

    Bogers, Toine; Petras, Vivien

    2015-01-01

    elements like core bibliographic data, controlled vocabulary terms, reviews, and tags to the retrieval performance. Our comparison is done using a test collection of over 2 million book records with information elements from Amazon, the British Library, the Library of Congress, and LibraryThing. We find...... that tags and controlled vocabulary terms do not actually outperform each other consistently, but seem to provide complementary contributions: some information needs are best addressed using controlled vocabulary terms whereas other are best addressed using tags....

  6. NASA thesaurus aeronautics vocabulary

    Science.gov (United States)

    1991-01-01

    The controlled vocabulary used by the NASA Scientific and Technical Information effort to index documents in the area of aeronautics is presented. The terms comprise a subset of the 1988 edition of the NASA Thesaurus and its supplements issued through the end of 1990. The Aeronautics Vocabulary contains over 4700 terms presented in a hierarchical display format. In addition to aeronautics per se, the vocabulary covers supporting terminology from areas such as fluid dynamics, propulsion engineering, and test facilities and instrumentation.

  7. Food and Feed Commodity Vocabulary

    Science.gov (United States)

    Food and Feed Vocabulary was developed to consolidate all the major OPP Commodity Vocabularies into one standardized vocabulary. The EPA-preferred term is the only term that can be used in setting tolerances.

  8. The Relationship between Vocabulary Learning Strategies and Vocabulary Proficiency of English Language Learners

    Directory of Open Access Journals (Sweden)

    F. Filiz Yalçın Tılfarlıoğlu

    2012-07-01

    Full Text Available The current study was carried out to examine L2 learners’ VLS use habits and the relationship of VLS with their vocabulary proficiency levels. In addition, language learners’ beliefs about VLS in terms of usefulness were also studied to understand L2 learners’ VLS use habits more deeply. To examine these matters, a descriptive research design was employed. The participants included 252 preparatory students from different proficiency groups (Upper-Intermediate, Intermediate, Pre-Intermediate, Beginner at Gaziantep University Higher School of Foreign Languages. To collect the related data, they were given “Vocabulary Learning Strategies Questionnaire” and “Vocabulary Levels Test”. The data analyses were conducted by descriptive and inferential statistics. The results of the study showed that the participants used a wide range of VLS, and there was an overlap between their beliefs about VLS in terms of usefulness and how often they used them to a large extent. Secondly, Memory Strategies correlated positively with the participants’ academic and general vocabulary proficiency levels. However, there were also some differences among the proficiency groups about which specific VLS are correlated with their vocabulary proficiency levels. As to the regression analysis results, none of the VLS predicted participants’ vocabulary proficiency levels. Keywords: Vocabulary learning strategies, vocabulary proficiency, learner beliefs

  9. What Is Going on During Vocabulary Lessons?

    Directory of Open Access Journals (Sweden)

    Michael S. Mott

    2012-04-01

    Full Text Available It has been 9 years since the Congressionally appointed National Reading Panel made recommendations for literacy instruction that comprise a five-component framework of phonological awareness, phonics, fluency, vocabulary, and comprehension. Vocabulary, a critical pillar of literacy, has reciprocal and correlational relationships with reading achievement. The researchers piloted an observational instrument to determine the methods and materials K-3 teachers use to teach vocabulary in today’s classrooms. This brief evaluates a vocabulary observation tool the researchers developed to gather information from early childhood classroom settings in the midsouth region of the United States. Understanding materials utilized in various contexts will enable practitioners and researchers to address the significant disparity between vocabulary “haves and have-nots.” An examination of the instrument was conducted (n = 18 raters at 3 ratings apiece for 45 trials to determine reliability and validity of observations. Reliability was addressed via training with discussion and resolution of ratings from video of vocabulary instruction. Validity was analyzed via multidimensional scaling (MDS to visually portray ratings along the dimensions of student or teacher control. From this data, we were able to determine the number of possible senses (auditory, visual, kinesthetic, smell, and taste students used. Results indicated observer ratings (n = 45 clustered or separated material-type consistently indicating variance along both dimensions. The researchers are currently applying this piloted instrument in a large-scale study to depict teachers’ vocabulary material use. Understanding vocabulary materials and contexts of their use may lead to more effective vocabulary curriculum, instruction, and assessment.

  10. Induction of continuous expanding infrarenal aortic aneurysms in a large porcine animal model

    DEFF Research Database (Denmark)

    Kloster, Brian Ozeraitis; Lund, Lars; Lindholt, Jes S.

    2015-01-01

    BackgroundA large animal model with a continuous expanding infrarenal aortic aneurysm gives access to a more realistic AAA model with anatomy and physiology similar to humans, and thus allows for new experimental research in the natural history and treatment options of the disease. Methods10 pigs...

  11. Induction of continuous expanding infrarenal aortic aneurysms in a large porcine animal model

    DEFF Research Database (Denmark)

    Kloster, Brian Ozeraitis; Lund, Lars; Lindholt, Jes S.

    2015-01-01

    BACKGROUND: A large animal model with a continuous expanding infrarenal aortic aneurysm gives access to a more realistic AAA model with anatomy and physiology similar to humans, and thus allows for new experimental research in the natural history and treatment options of the disease. METHODS: 10...

  12. Vocabulary development at home: A multimedia elaborated picture supporting parent-toddler interaction

    NARCIS (Netherlands)

    Gremmen, M.C.; Molenaar, I.; Teepe, R.C.

    2016-01-01

    Some children enter elementary school with large vocabulary delays, which negatively influence their later school performance. A rich home language environment can support vocabulary development through frequent high-quality parent-toddler interaction. Elaborated picture home activities can support

  13. Discussion about English Vocabulary

    Institute of Scientific and Technical Information of China (English)

    Wenxia Zhang

    2008-01-01

    Vocabulary becomes more and more crucial in English learning.The article depicts six main domains about the mastery and enlargement of vocabulary,and they are motivation and aim,major fields,word,ways,radiation,and concrete execution respectively.

  14. Building Mathematics Vocabulary

    Science.gov (United States)

    Kovarik, Madeline

    2010-01-01

    Although mathematics is visual language of symbols and numbers it is also expressed and explained through written and spoken words. For students to excel in mathematics, they must recognize, comprehend and apply the requisite vocabulary. Thus, vocabulary instruction is as critical in content areas as it is in language arts. It is especially…

  15. The Superlearning of Vocabulary.

    Science.gov (United States)

    Fillmer, H. Thompson

    1983-01-01

    Describes the use of Georgi Lozanov's technique using rhythm, breathing, music, and meditation to bring about hypermnesia, or supermemory, to teach vocabulary to 15 university students. Reviews students' vocabulary gains, as seen in pre- and post-test scores, and describes how some students implemented superlearning techniques with their own…

  16. Vocabularies in the VO

    Science.gov (United States)

    Gray, A. J. G.; Gray, N.; Ounis, I.

    2009-09-01

    There are multiple vocabularies and thesauri within astronomy, of which the best known are the 1993 IAU Thesaurus and the keyword list maintained by A&A, ApJ and MNRAS. The IVOA has agreed on a standard for publishing vocabularies, based on the W3C skos standard, to allow greater automated interaction with them, in particular on the Web. This allows links with the Semantic Web and looks forward to richer applications using the technologies of that domain. Vocabulary-aware applications can benefit from improvements in both precision and recall when searching for bibliographic or science data, and lightweight intelligent filtering for services such as VOEvent streams. In this paper we present two applications, the Vocabulary Explorer and its companion the Mapping Editor, which have been developed to support the use of vocabularies in the Virtual Observatory. These combine Semantic Web and Information Retrieval technologies to illustrate the way in which formal vocabularies might be used in a practical application, provide an online service which will allow astronomers to explore and relate existing vocabularies, and provide a service which translates free text user queries into vocabulary terms.

  17. Content Area Vocabulary Learning

    Science.gov (United States)

    Fisher, Douglas; Frey, Nancy

    2014-01-01

    Students' vocabulary knowledge is a significant predictor of their overall comprehension. The Common Core State Standards are raising the expectations for word learning and there are now 4 distinct standards related to vocabulary as well as expectations in other standards, including content areas. To address these expectations, teachers need…

  18. Effects of Hierarchy Vocabulary Exercises on English Vocabulary Acquisition

    Science.gov (United States)

    Lin, Ching-Ying; Hsu, Wei Shu

    2013-01-01

    The purpose of the study was to compare the effectiveness of hierarchy vocabulary exercises and copying vocabulary exercises on EFL students' vocabulary acquisition and reading comprehension. Two specific factors were probed: (a) vocabulary gains and retention from different exercises; (b) reading comprehension performance through different…

  19. Cross-Language Associations in the Development of Preschoolers' Receptive and Expressive Vocabulary.

    Science.gov (United States)

    Maier, Michelle F; Bohlmann, Natalie L; Palacios, Natalia A

    The increasing population of dual language learners (DLLs) entering preschool classrooms highlights a continued need for research on the development of dual language acquisition, and specifically vocabulary skills, in this age group. This study describes young DLL children's (N = 177) vocabulary development in both English and Spanish simultaneously, and how vocabulary skills in each language relate to one another, during a contextual shift that places greater emphasis on the acquisition of academic English language skills. Findings demonstrated that DLL preschoolers made gains in vocabulary in both languages with more change evidenced in receptive, in comparison to expressive, vocabulary as well as in English in comparison to Spanish. When examining whether children's vocabulary scores in one language at the beginning of preschool interact with their vocabulary scores in the other language to predict vocabulary growth, no significant associations were found for receptive vocabulary. In contrast, the interaction between initial English and Spanish expressive vocabulary scores was negatively related to growth in English expressive vocabulary. This cross-language association suggests that children who have low expressive vocabulary skills in both languages tend to grow faster in their English expressive vocabulary. The study extends previous work on dual language development by examining growth in expressive and receptive vocabulary in both English and Spanish. It also provides suggestions for future work to inform a more comprehensive understanding of DLL children's development in both languages.

  20. Cross-Language Associations in the Development of Preschoolers’ Receptive and Expressive Vocabulary

    Science.gov (United States)

    Maier, Michelle F.; Bohlmann, Natalie L.; Palacios, Natalia A.

    2016-01-01

    The increasing population of dual language learners (DLLs) entering preschool classrooms highlights a continued need for research on the development of dual language acquisition, and specifically vocabulary skills, in this age group. This study describes young DLL children's (N = 177) vocabulary development in both English and Spanish simultaneously, and how vocabulary skills in each language relate to one another, during a contextual shift that places greater emphasis on the acquisition of academic English language skills. Findings demonstrated that DLL preschoolers made gains in vocabulary in both languages with more change evidenced in receptive, in comparison to expressive, vocabulary as well as in English in comparison to Spanish. When examining whether children's vocabulary scores in one language at the beginning of preschool interact with their vocabulary scores in the other language to predict vocabulary growth, no significant associations were found for receptive vocabulary. In contrast, the interaction between initial English and Spanish expressive vocabulary scores was negatively related to growth in English expressive vocabulary. This cross-language association suggests that children who have low expressive vocabulary skills in both languages tend to grow faster in their English expressive vocabulary. The study extends previous work on dual language development by examining growth in expressive and receptive vocabulary in both English and Spanish. It also provides suggestions for future work to inform a more comprehensive understanding of DLL children's development in both languages. PMID:26807002

  1. Building Word Knowledge: Opportunities for Direct Vocabulary Instruction in General Education for Students with Reading Difficulties

    Science.gov (United States)

    Wanzek, Jeanne

    2014-01-01

    Direct vocabulary instruction is 1 critical component of reading instruction. Although most students in the elementary grades need to continue building their vocabulary knowledge, students with reading difficulties are at the greatest risk of falling further behind each year in vocabulary and concept knowledge without effective instruction. This…

  2. Fundamental Vocabulary Selection Based on Word Familiarity

    Science.gov (United States)

    Sato, Hiroshi; Kasahara, Kaname; Kanasugi, Tomoko; Amano, Shigeaki

    This paper proposes a new method for selecting fundamental vocabulary. We are presently constructing the Fundamental Vocabulary Knowledge-base of Japanese that contains integrated information on syntax, semantics and pragmatics, for the purposes of advanced natural language processing. This database mainly consists of a lexicon and a treebank: Lexeed (a Japanese Semantic Lexicon) and the Hinoki Treebank. Fundamental vocabulary selection is the first step in the construction of Lexeed. The vocabulary should include sufficient words to describe general concepts for self-expandability, and should not be prohibitively large to construct and maintain. There are two conventional methods for selecting fundamental vocabulary. The first is intuition-based selection by experts. This is the traditional method for making dictionaries. A weak point of this method is that the selection strongly depends on personal intuition. The second is corpus-based selection. This method is superior in objectivity to intuition-based selection, however, it is difficult to compile a sufficiently balanced corpora. We propose a psychologically-motivated selection method that adopts word familiarity as the selection criterion. Word familiarity is a rating that represents the familiarity of a word as a real number ranging from 1 (least familiar) to 7 (most familiar). We determined the word familiarity ratings statistically based on psychological experiments over 32 subjects. We selected about 30,000 words as the fundamental vocabulary, based on a minimum word familiarity threshold of 5. We also evaluated the vocabulary by comparing its word coverage with conventional intuition-based and corpus-based selection over dictionary definition sentences and novels, and demonstrated the superior coverage of our lexicon. Based on this, we conclude that the proposed method is superior to conventional methods for fundamental vocabulary selection.

  3. Interactive College English Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    杨敏

    2013-01-01

    Vocabulary learning is the foundation of language learning and the security to realize the language communication. However, vocabulary learning for many students is a difficulty which is hard to pass across. This paper attempts to explore the present vocabulary teaching reform, which aims to establish a teaching method that is to help students develop vocabulary learn-ing interest with the game.

  4. Supplements to Traditional Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    布亚男

    2012-01-01

      In a word, Vocabulary plays an indispensable part in language proficiency and provides much of the basis of how wel learns language, so it cannot be ignored. I discussed Schools’ viewpoints on the vocabulary teaching ,Reason for forgetting, Traditional approach to vocabulary teaching, supplements to vocabulary teaching,the author hope the above content can offer some hints for language learners.

  5. Toward Large-Scale Continuous EDA: A Random Matrix Theory Perspective.

    Science.gov (United States)

    Kabán, A; Bootkrajang, J; Durrant, R J

    2016-01-01

    Estimations of distribution algorithms (EDAs) are a major branch of evolutionary algorithms (EA) with some unique advantages in principle. They are able to take advantage of correlation structure to drive the search more efficiently, and they are able to provide insights about the structure of the search space. However, model building in high dimensions is extremely challenging, and as a result existing EDAs may become less attractive in large-scale problems because of the associated large computational requirements. Large-scale continuous global optimisation is key to many modern-day real-world problems. Scaling up EAs to large-scale problems has become one of the biggest challenges of the field. This paper pins down some fundamental roots of the problem and makes a start at developing a new and generic framework to yield effective and efficient EDA-type algorithms for large-scale continuous global optimisation problems. Our concept is to introduce an ensemble of random projections to low dimensions of the set of fittest search points as a basis for developing a new and generic divide-and-conquer methodology. Our ideas are rooted in the theory of random projections developed in theoretical computer science, and in developing and analysing our framework we exploit some recent results in nonasymptotic random matrix theory.

  6. Induction of continuous expanding infrarenal aortic aneurysms in a large porcine animal model

    DEFF Research Database (Denmark)

    Kloster, Brian Ozeraitis; Lund, Lars; Lindholt, Jes S.

    2015-01-01

    BACKGROUND: A large animal model with a continuous expanding infrarenal aortic aneurysm gives access to a more realistic AAA model with anatomy and physiology similar to humans, and thus allows for new experimental research in the natural history and treatment options of the disease. METHODS: 10...... ultrasound, hereafter the pigs were euthanized for inspection and AAA wall sampling for histological analysis. RESULTS: In group A, all pigs developed continuous expanding AAA's with a mean increase in AP-diameter to 16.26 ± 0.93 mm equivalent to a 57% increase. In group B the AP-diameters increased to 11...... in group A. The most frequent complication was a neurological deficit in the lower limbs. CONCLUSION: In pigs it's possible to induce continuous expanding AAA's based upon proteolytic degradation and pathological flow, resembling the real life dynamics of human aneurysms. Because the lumbars are preserved...

  7. On Continuous Magnetically Enhanced Centrifugation in Large Scale Downstream Processing of Bioproducts

    OpenAIRE

    Lindner, Johannes

    2014-01-01

    The current thesis targets on the technical use of Magnetically Enhanced Centrifugation (MEC). Aim is the understanding of the mechanisms of particle transport out of the magnetic field by simulations of the phenomena, and the realization of MEC in a large scale. Industrial scale machines for batch-wise and continuous discharge were tested. The use of synthetic magnetic particles with functionalized surface allows the separation of non-magnetic matter.

  8. AN EFFECTIVE CONTINUOUS ALGORITHM FOR APPROXIMATE SOLUTIONS OF LARGE SCALE MAX-CUT PROBLEMS

    Institute of Scientific and Technical Information of China (English)

    Cheng-xian Xu; Xiao-liang He; Feng-min Xu

    2006-01-01

    An effective continuous algorithm is proposed to find approximate solutions of NP-hard max-cut problems. The algorithm relaxes the max-cut problem into a continuous nonlinear programming problem by replacing n discrete constraints in the original problem with one single continuous constraint. A feasible direction method is designed to solve the resulting nonlinear programming problem. The method employs only the gradient evaluations of the objective function, and no any matrix calculations and no line searches are required.This greatly reduces the calculation cost of the method, and is suitable for the solution of large size max-cut problems. The convergence properties of the proposed method to KKT points of the nonlinear programming are analyzed. If the solution obtained by the proposed method is a global solution of the nonlinear programming problem, the solution will provide an upper bound on the max-cut value. Then an approximate solution to the max-cut problem is generated from the solution of the nonlinear programming and provides a lower bound on the max-cut value. Numerical experiments and comparisons on some max-cut test problems (small and large size) show that the proposed algorithm is efficient to get the exact solutions for all small test problems and well satisfied solutions for most of the large size test problems with less calculation costs.

  9. Social validation of vocabulary selection: ensuring stakeholder relevance.

    Science.gov (United States)

    Bornman, Juan; Bryen, Diane Nelson

    2013-06-01

    The vocabulary needs of individuals who are unable to spell their messages continue to be of concern in the field of augmentative and alternative communication (AAC). Social validation of vocabulary selection has been suggested as one way to improve the effectiveness and relevance of service delivery in AAC. Despite increased emphasis on stakeholder accountability, social validation is not frequently used in AAC research. This paper describes an investigation of the social validity of a vocabulary set identified in earlier research. A previous study used stakeholder focus groups to identify vocabulary that could be used by South African adults who use AAC to disclose their experiences as victims of crime or abuse. Another study used this vocabulary to create communication boards for use by adults with complex communication needs. In this current project, 12 South African adults with complex communication needs who use AAC systems used a 5-point Likert scale to score the importance of each of the previously identified 57 vocabulary items. This two-step process of first using stakeholder focus groups to identify vocabulary, and then having literate persons who use AAC provide information on social validity of the vocabulary on behalf of their peers who are illiterate, appears to hold promise as a culturally relevant vocabulary selection approach for sensitive topics such as crime and abuse.

  10. Linking open vocabularies

    CERN Document Server

    Greifender, Elke; Seadle, Michael

    2013-01-01

    Linked Data (LD), Linked Open Data (LOD) and generating a web of data, present the new knowledge sharing frontier. In a philosophical context, LD is an evolving environment that reflects humankinds' desire to understand the world by drawing on the latest technologies and capabilities of the time. LD, while seemingly a new phenomenon did not emerge overnight; rather it represents the natural progression by which knowledge structures are developed, used, and shared. Linked Open Vocabularies is a significant trajectory of LD. Linked Open Vocabularies targets vocabularies that have traditionally b

  11. Is Incidental Vocabulary Acquisition Feasible to EFL Learning?

    Science.gov (United States)

    Luo, Jian-ping

    2013-01-01

    For learning English as a foreign language, the efficiency of the approach of incidental vocabulary acquisition depends on the word frequency and text coverage. However, the statistics of English corpus reveals that English is a language that has a large vocabulary size but a low word frequency as well as text coverage, which is obviously not in…

  12. Vocabulary Acquisition in L2: Does CALL Really Help?

    Science.gov (United States)

    Averianova, Irina

    2015-01-01

    Language competence in various communicative activities in L2 largely depends on the learners' size of vocabulary. The target vocabulary of adult L2 learners should be between 2,000 high frequency words (a critical threshold) and 10,000 word families (for comprehension of university texts). For a TOEIC test, the threshold is estimated to be…

  13. The Relationship between Depth of Vocabulary Knowledge and Reading Comprehension

    Institute of Scientific and Technical Information of China (English)

    赵旭

    2015-01-01

    Having a large vocabulary is a key in learning a foreign language successfully.The present study attempts to investigate the relationship between depth of vocabulary knowledge and reading comprehension.DVK relates to how well one knows a word and it is the quality of one’s knowledge about a word.It involves a good number of aspects representing

  14. Marine Navigational Vocabulary

    Institute of Scientific and Technical Information of China (English)

    王惠灵

    2014-01-01

    Every industry has its professional terms or particular use of common words. The marine industry is no exception. This paper attempts to give a brief introduction to the elementary vocabularies related to marine industry from six aspects: types of ships;ship’s structure and equipment, manning, logbook, safety and organizations concerned. The corresponding Chinese terms is given simultaneously. It concludes that a good master of these vocabularies is useful and necessary for Chinese seafarers whose native language is not English.

  15. Vocabulary teaching strategies

    Institute of Scientific and Technical Information of China (English)

    徐桂荣

    2016-01-01

    Vocabulary has always been one of the significant issues related both with teachers and learners of foreign languages. How to teach vocabulary efficiency? Teachers should choose proper ways to instruct words. Many teachers often write new words they want to teach on the blackboard and then explain them one by one. It makes students feel bored. This paper will summarize some teaching approaches that are better on teaching English words.

  16. Large continuous perspective transformations are necessary and sufficient for accurate perception of metric shape.

    Science.gov (United States)

    Bingham, Geoffrey P; Lind, Mats

    2008-04-01

    We investigated the ability to perceive the metric shape of elliptical cylinders. A large number of previous studies have shown that small perspective variations (perception of metric shape. If space perception is affine (Koenderink & van Doom, 1991), observers are unable to compare or relate lengths in depth to frontoparallel lengths (i.e., widths). Frontoparallel lengths can be perceived correctly, whereas lengths in depth generally are not. We measured reaches to evaluate shape perception and investigated whether larger perspective variations would allow accurate perception of shape. In Experiment 1, we replicated previous results showing poor perception with small perspective variations. In Experiment 2, we found that a 90 degrees continuous change in perspective, which swapped depth and width, allowed accurate perception of the depth/width aspect ratio. In Experiment 3, we found that discrete views differing by 90 degrees were insufficient to allow accurate perception of metric shape and that perception of a continuous perspective change was required. In Experiment 4, we investigated continuous perspective changes of 30 degrees, 45 degrees, 60 degrees, and 90 degrees and discovered that a 45 degrees change or greater allowed accurate perception of the aspect ratio and that less than this did not. In conclusion, we found that perception of metric shape is possible with continuous perspective transformations somewhat larger than those investigated in the substantial number of previous studies.

  17. Point of collapse and continuation methods for large ac/dc systems

    Energy Technology Data Exchange (ETDEWEB)

    Canizares, C.A. (Escuela Politecnica Nacional, Quito (Ecuador)); Alvarado, F.L. (Univ. of Wisconsin, Madison, WI (United States))

    1993-02-01

    This paper describes the implementation of both Point of Collapse (PoC) methods and continuation methods for the computation of voltage collapse points (saddle-node bifurcations) in large ac/dc systems. A comparison of the performance of these methods is presented for real systems of up to 2,158 buses. The paper discusses computational details of the implementation of the PoC and continuation methods, and the unique challenges encountered due to the presence of high voltage direct current (HVDC) transmission, area interchange power control regulating transformers, and voltage and reactive power limits. The characteristics of a robust PoC power flow program are presented, and its application to detection and solution of voltage stability problems is demonstrated.

  18. The effect of continuous grouping of pigs in large groups on stress response and haematological parameters

    DEFF Research Database (Denmark)

    Damgaard, Birthe Marie; Studnitz, Merete; Jensen, Karin Hjelholt

    2009-01-01

    from weaning at the age of 4 weeks to the age of 18 weeks after weaning. Limited differences were found in stress and haematological parameters between pigs in dynamic and static groups. The cortisol response to the stress test was increasing with the duration of the stress test in pigs from......The consequences of an ‘all in-all out' static group of uniform age vs. a continuously dynamic group with litter introduction and exit every third week were examined with respect to stress response and haematological parameters in large groups of 60 pigs. The experiment included a total of 480 pigs...

  19. Robust Continuous-time Generalized Predictive Control for Large Time-delay System

    Institute of Scientific and Technical Information of China (English)

    WEI Huan; PAN Li-deng; ZHEN Xin-ping

    2008-01-01

    A simple delay-predictive continuous-time generalized predictive controller with filter (F - SDCGPC) is proposed. By using modified predictive output signal and cost function, the delay compensator is incorporated in the control law with observer structure, and a filter is added for enhancing robustness. The design of filter does not affect the nominal set-point response, and it is more flexible than the design of observer polynomial. The analysis and simulation results show that the F - SDCGPC has better robustness than the observer structure without filter when large time-delay error is considered.

  20. Large Time Asymptotics for a Continuous Coagulation-Fragmentation Model with Degenerate Size-Dependent Diffusion

    KAUST Repository

    Desvillettes, Laurent

    2010-01-01

    We study a continuous coagulation-fragmentation model with constant kernels for reacting polymers (see [M. Aizenman and T. Bak, Comm. Math. Phys., 65 (1979), pp. 203-230]). The polymers are set to diffuse within a smooth bounded one-dimensional domain with no-flux boundary conditions. In particular, we consider size-dependent diffusion coefficients, which may degenerate for small and large cluster-sizes. We prove that the entropy-entropy dissipation method applies directly in this inhomogeneous setting. We first show the necessary basic a priori estimates in dimension one, and second we show faster-than-polynomial convergence toward global equilibria for diffusion coefficients which vanish not faster than linearly for large sizes. This extends the previous results of [J.A. Carrillo, L. Desvillettes, and K. Fellner, Comm. Math. Phys., 278 (2008), pp. 433-451], which assumes that the diffusion coefficients are bounded below. © 2009 Society for Industrial and Applied Mathematics.

  1. Large-scale derived flood frequency analysis based on continuous simulation

    Science.gov (United States)

    Dung Nguyen, Viet; Hundecha, Yeshewatesfa; Guse, Björn; Vorogushyn, Sergiy; Merz, Bruno

    2016-04-01

    There is an increasing need for spatially consistent flood risk assessments at the regional scale (several 100.000 km2), in particular in the insurance industry and for national risk reduction strategies. However, most large-scale flood risk assessments are composed of smaller-scale assessments and show spatial inconsistencies. To overcome this deficit, a large-scale flood model composed of a weather generator and catchments models was developed reflecting the spatially inherent heterogeneity. The weather generator is a multisite and multivariate stochastic model capable of generating synthetic meteorological fields (precipitation, temperature, etc.) at daily resolution for the regional scale. These fields respect the observed autocorrelation, spatial correlation and co-variance between the variables. They are used as input into catchment models. A long-term simulation of this combined system enables to derive very long discharge series at many catchment locations serving as a basic for spatially consistent flood risk estimates at the regional scale. This combined model was set up and validated for major river catchments in Germany. The weather generator was trained by 53-year observation data at 528 stations covering not only the complete Germany but also parts of France, Switzerland, Czech Republic and Australia with the aggregated spatial scale of 443,931 km2. 10.000 years of daily meteorological fields for the study area were generated. Likewise, rainfall-runoff simulations with SWIM were performed for the entire Elbe, Rhine, Weser, Donau and Ems catchments. The validation results illustrate a good performance of the combined system, as the simulated flood magnitudes and frequencies agree well with the observed flood data. Based on continuous simulation this model chain is then used to estimate flood quantiles for the whole Germany including upstream headwater catchments in neighbouring countries. This continuous large scale approach overcomes the several

  2. Continuous Purification of Colloidal Quantum Dots in Large-Scale Using Porous Electrodes in Flow Channel

    Science.gov (United States)

    Lim, Hosub; Woo, Ju Young; Lee, Doh C.; Lee, Jinkee; Jeong, Sohee; Kim, Duckjong

    2017-01-01

    Colloidal quantum dots (QDs) afford huge potential in numerous applications owing to their excellent optical and electronic properties. After the synthesis of QDs, separating QDs from unreacted impurities in large scale is one of the biggest issues to achieve scalable and high performance optoelectronic applications. Thus far, however, continuous purification method, which is essential for mass production, has rarely been reported. In this study, we developed a new continuous purification process that is suitable to the mass production of high-quality QDs. As-synthesized QDs are driven by electrophoresis in a flow channel and captured by porous electrodes and finally separated from the unreacted impurities. Nuclear magnetic resonance and ultraviolet/visible/near-infrared absorption spectroscopic data clearly showed that the impurities were efficiently removed from QDs with the purification yield, defined as the ratio of the mass of purified QDs to that of QDs in the crude solution, up to 87%. Also, we could successfully predict the purification yield depending on purification conditions with a simple theoretical model. The proposed large-scale purification process could be an important cornerstone for the mass production and industrial use of high-quality QDs. PMID:28240242

  3. Continuous data assimilation for downscaling large-footprint soil moisture retrievals

    KAUST Repository

    Altaf, M. U.

    2016-01-01

    Soil moisture is a key component of the hydrologic cycle, influencing processes leading to runoff generation, infiltration and groundwater recharge, evaporation and transpiration. Generally, the measurement scale for soil moisture is found to be different from the modeling scales for these processes. Reducing this mismatch between observation and model scales in necessary for improved hydrological modeling. An innovative approach to downscaling coarse resolution soil moisture data by combining continuous data assimilation and physically based modeling is presented. In this approach, we exploit the features of Continuous Data Assimilation (CDA) which was initially designed for general dissipative dynamical systems and later tested numerically on the incompressible Navier-Stokes equation, and the Benard equation. A nudging term, estimated as the misfit between interpolants of the assimilated coarse grid measurements and the fine grid model solution, is added to the model equations to constrain the model’s large scale variability by available measurements. Soil moisture fields generated at a fine resolution by a physically-based vadose zone model (HYDRUS) are subjected to data assimilation conditioned upon coarse resolution observations. This enables nudging of the model outputs towards values that honor the coarse resolution dynamics while still being generated at the fine scale. Results show that the approach is feasible to generate fine scale soil moisture fields across large extents, based on coarse scale observations. Application of this approach is likely in generating fine and intermediate resolution soil moisture fields conditioned on the radiometer-based, coarse resolution products from remote sensing satellites.

  4. Solidification Structure of Continuous Casting Large Round Billets under Mold Electromagnetic Stirring

    Institute of Scientific and Technical Information of China (English)

    Tao SUN; Feng YUE; Hua-jie WU; Chun GUO; Ying LI; Zhong-cun MA

    2016-01-01

    The solidification structure of a continuous casting large round billet was analyzed by a cellular-automaton-finite-element coupling model using the ProCAST software.The actual and simulated solidification structures were compared under mold electromagnetic stirring (MEMS)conditions (current of 300 A and frequency of 3 Hz).There-after,the solidification structures of the large round billet were investigated under different superheats,casting speeds,and secondary cooling intensities.Finally,the effect of the MEMS current on the solidification structures was obtained under fixed superheat,casting speed,secondary cooling intensity,and MEMS frequency.The model accurately simulated the actual solidification structures of any steel,regardless of its size and the parameters used in the continuous casting process.The ratio of the central equiaxed grain zone was found to increase with decreasing su-perheat,increasing casting speed,decreasing secondary cooling intensity,and increasing MEMS current.The grain size obviously decreased with decreasing superheat and increasing MEMS current but was less sensitive to the casting speed and secondary cooling intensity.

  5. Sound Symbolism in Basic Vocabulary

    Directory of Open Access Journals (Sweden)

    Søren Wichmann

    2010-04-01

    Full Text Available The relationship between meanings of words and their sound shapes is to a large extent arbitrary, but it is well known that languages exhibit sound symbolism effects violating arbitrariness. Evidence for sound symbolism is typically anecdotal, however. Here we present a systematic approach. Using a selection of basic vocabulary in nearly one half of the world’s languages we find commonalities among sound shapes for words referring to same concepts. These are interpreted as due to sound symbolism. Studying the effects of sound symbolism cross-linguistically is of key importance for the understanding of language evolution.

  6. Heritability of longevity in Large White and Landrace sows using continuous time and grouped data models

    Directory of Open Access Journals (Sweden)

    Sölkner Johann

    2010-05-01

    Full Text Available Abstract Background Using conventional measurements of lifetime, it is not possible to differentiate between productive and non-productive days during a sow's lifetime and this can lead to estimated breeding values favoring less productive animals. By rescaling the time axis from continuous to several discrete classes, grouped survival data (discrete survival time models can be used instead. Methods The productive life length of 12319 Large White and 9833 Landrace sows was analyzed with continuous scale and grouped data models. Random effect of herd*year, fixed effects of interaction between parity and relative number of piglets, age at first farrowing and annual herd size change were included in the analysis. The genetic component was estimated from sire, sire-maternal grandsire, sire-dam, sire-maternal grandsire and animal models, and the heritabilities computed for each model type in both breeds. Results If age at first farrowing was under 43 weeks or above 60 weeks, the risk of culling sows increased. An interaction between parity and relative litter size was observed, expressed by limited culling during first parity and severe risk increase of culling sows having small litters later in life. In the Landrace breed, heritabilities ranged between 0.05 and 0.08 (s.e. 0.014-0.020 for the continuous and between 0.07 and 0.11 (s.e. 0.016-0.023 for the grouped data models, and in the Large White breed, they ranged between 0.08 and 0.14 (s.e. 0.012-0.026 for the continuous and between 0.08 and 0.13 (s.e. 0.012-0.025 for the grouped data models. Conclusions Heritabilities for length of productive life were similar with continuous time and grouped data models in both breeds. Based on these results and because grouped data models better reflect the economical needs in meat animals, we conclude that grouped data models are more appropriate in pig.

  7. Vocabulary Knowledge and Vocabulary Use in Second Language Writing

    Science.gov (United States)

    Johnson, Mark D.; Acevedo, Anthony; Mercado, Leonardo

    2016-01-01

    Research has consistently shown diversity of vocabulary to be an important indicator of second language (L2) writing development as well as L2 writing performance. These studies underscore the importance of vocabulary to L2 writing. However, they provide little to indicate what kind of vocabulary learners of English may need to know in order to…

  8. Vocabulary Knowledge and Vocabulary Use in Second Language Writing

    Science.gov (United States)

    Johnson, Mark D.; Acevedo, Anthony; Mercado, Leonardo

    2016-01-01

    Research has consistently shown diversity of vocabulary to be an important indicator of second language (L2) writing development as well as L2 writing performance. These studies underscore the importance of vocabulary to L2 writing. However, they provide little to indicate what kind of vocabulary learners of English may need to know in order to…

  9. Talking about Cultural Elements in Vocabulary and English Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    Zhang Jinjing

    2015-01-01

    By illustrating the significance of cultural elements in vocabulary and current situations in English vocabulary teaching,the author hope that English teachers can pay more attention to cultural elements behind the conceptual meanings of English words and change their method of teaching to motivate students' interest in vocabulary learning.

  10. Talking about Cultural Elements in Vocabulary and English Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    Zhang; Jinjing

    2015-01-01

    By illustrating the significance of cultural elements in vocabulary and current situations in English vocabulary teaching,the author hope that English teachers can pay more attention to cultural elements behind the conceptual meanings of English words and change their method of teaching to motivate students’ interest in vocabulary learning.

  11. Vocabulary Plus: Comprehensive Vocabulary Instruction for English Learners

    Science.gov (United States)

    Frumkin, Rhoda

    2010-01-01

    "Vocabulary Plus" is an interactive strategy which links vocabulary development with content area learning for English learners. This strategy uses interactive read-alouds of thematically- connected informational text matched to the grade-appropriate state standards and content of core subjects. When using "Vocabulary Plus",…

  12. General Reviews of Vocabulary Retention

    Institute of Scientific and Technical Information of China (English)

    ZHANG Yuan

    2013-01-01

    This paper will try to review two important theories (repletion and retrieval) which are crucial for vocabulary retention. These two methods are well connected and each of them cannot lead to successful vocabulary retention without sensible utilization of the other.

  13. Fixation in large populations: a continuous view of a discrete problem.

    Science.gov (United States)

    Chalub, Fabio A C C; Souza, Max O

    2016-01-01

    We study fixation in large, but finite, populations with two types, and dynamics governed by birth-death processes. By considering a restricted class of such processes, which includes many of the evolutionary processes usually discussed in the literature, we derive a continuous approximation for the probability of fixation that is valid beyond the weak-selection (WS) limit. Indeed, in the derivation three regimes naturally appear: selection-driven, balanced, and quasi-neutral--the latter two require WS, while the former can appear with or without WS. From the continuous approximations, we then obtain asymptotic approximations for evolutionary dynamics with at most one equilibrium, in the selection-driven regime, that does not preclude a weak-selection regime. As an application, we study the fixation pattern when the infinite population limit has an interior evolutionary stable strategy (ESS): (1) we show that the fixation pattern for the Hawk and Dove game satisfies what we term the one-half law: if the ESS is outside a small interval around 1/2, the fixation is of dominance type; (2) we also show that, outside of the weak-selection regime, the long-term dynamics of large populations can have very little resemblance to the infinite population case; in addition, we also present results for the case of two equilibria, and show that even when there is weak-selection the long-term dynamics can be dramatically different from the one predicted by the replicator dynamics. Finally, we present continuous restatements valid for large populations of two classical concepts naturally defined in the discrete case: (1) the definition of an ESSN strategy; (2) the definition of a risk-dominant strategy. We then present three applications of these restatements: (1) we obtain an asymptotic definition valid in the quasi-neutral regime that recovers both the one-third law under linear fitness and the generalised one-third law for d-player games; (2) we extend the ideas behind the

  14. How to Enlarge Productive Vocabulary

    Institute of Scientific and Technical Information of China (English)

    刘菁

    2015-01-01

    Haycraft defined receptive vocabulary as "words that the student recognizes and understands when they occur in a text, but which he cannot produce correctly", while productive vocabulary is "words which the student understands can pronounce correctly and use constructively in speaking and writing" (1978:44).In English language teaching practice, students' productive vocabulary size lags far behind there ceptive vocabulary size. Based on the SLA theories, many reasons caused this problem and some solutions will be discussed.

  15. Continuous data assimilation for downscaling large-footprint soil moisture retrievals

    KAUST Repository

    Altaf, M. U.

    2016-09-01

    Soil moisture is a crucial component of the hydrologic cycle, significantly influencing runoff, infiltration, recharge, evaporation and transpiration processes. Models characterizing these processes require soil moisture as an input, either directly or indirectly. Better characterization of the spatial variability of soil moisture leads to better predictions from hydrologic/climate models. In-situ measurements have fine resolution, but become impractical in terms of coverage over large extents. Remotely sensed data have excellent spatial coverage extents, but suffer from poorer spatial and temporal resolution. We present here an innovative approach to downscaling coarse resolution soil moisture data by combining data assimilation and physically based modeling. In this approach, we exploit the features of Continuous Data Assimilation (CDA). A nudging term, estimated as the misfit between interpolants of the assimilated coarse grid measurements and the fine grid model solution, is added to the model equations to constrain the model’s large scale variability by available measurements. Soil moisture fields generated at a fine resolution by a physically-based vadose zone model (e.g., HYDRUS) are subjected to data assimilation conditioned upon the coarse resolution observations. This enables nudging of the model outputs towards values that honor the coarse resolution dynamics while still being generated at the fine scale. The large scale features of the model output are constrained to the observations, and as a consequence, the misfit at the fine scale is reduced. The advantage of this approach is that fine resolution soil moisture maps can be generated across large spatial extents, given the coarse resolution data. The data assimilation approach also enables multi-scale data generation which is helpful to match the soil moisture input data to the corresponding modeling scale. Application of this approach is likely in generating fine and intermediate resolution soil

  16. Stability Analysis of Continuous-Time Fuzzy Large-Scale System

    Institute of Scientific and Technical Information of China (English)

    曾怡达; 张友刚; 肖建

    2003-01-01

    A continuous-time fuzzy large-scale system F consists of some interconnected Takagi-Sugeno fuzzy subsystems. Two sufficient conditions for the asymptotic stability of this system (namely, theorem 1 and theorem 2) are derived via a multiple Lyapunov function approach. In theorem 1, the information of membership functions of fuzzy rules should be known in order to analyze the stability of F. But in general this information is not easy to be acquired for their time-varying property. So theorem 2 is provided to judge the asymptotic stability of F, based on which there is no need to know the information of membership functions in stability analysis. Finally, a numerical example is given to show the utility of the method proposed in this paper.

  17. Using continuous assessment to promote student engagement in a large class

    Science.gov (United States)

    Cole, Jonathan S.; Spence, Stephen W. T.

    2012-10-01

    The authors have developed a first-year fluids course for a class of around 230 aerospace, civil and mechanical engineering students. This paper aims to show how the teaching and assessment methodology was applied to the challenge of a large class. The lectures featured formal teaching interspersed with active learning elements. Smaller group (about 25-30 students) tutorial classes involved student practice. A 10-minute test occurred in each tutorial during weeks 3-11. Each test was based on the previous week's lecture material and the marks contributed towards 20% of the course mark. A condition for passing the course was that a student must pass at least six of the nine tests. The assessment promoted student involvement with the course - tutorial attendance was greater and more uniform than previously and exam performance improved significantly. Students recognised that the assessment system was useful in encouraging continuous learning over the semester and building confidence.

  18. Analysis of Deflection Problems of Large-span Continuous Rigid Frame Bridge and Prevention Measures

    Directory of Open Access Journals (Sweden)

    Chen Dong

    2015-01-01

    Full Text Available The large-span continuous rigid frame bridge is a kind of common structural form in long-span bridges of our country, but one of the main diseases of these bridges is the excessive deflection in the mid-span, which seriously affects the safety of the structure. This paper makes a comprehensive analysis for the causes of the excessive deflection, and lists the commonly-used control measures in engineering. Simultaneously, new improvement measures and the comparative analysis of before-and-after improvements are put forward on this basis. However, these measures can be used to inhibit deflection in a certain extent, but cannot avoid the occurrence of deflection completely.

  19. Teaching Vocabulary across the Curriculum

    Science.gov (United States)

    Bintz, William P.

    2011-01-01

    Learning vocabulary is an important instructional aim for teachers in all content areas in middle grades schools. Recent research, however, indicates that vocabulary instruction may be problematic because many teachers are not "confident about best practice in vocabulary instruction and at times don't know where to begin to form an instructional…

  20. THE INFLUENCE OF VOCABULARY JOURNAL IN TEACHING STUDENTS’ VOCABULARY MASTERY

    Directory of Open Access Journals (Sweden)

    Dian Rakhmawati

    2016-04-01

    Full Text Available The aims of this research is to find out the influence of vocabulary journal as media in teaching student vocabulary at the eighth grade students of SMP Al-Fajar. The quantitative method was conducted and this research is a population research, because all the member of population is taken as sample, which consisted of 30 students of eighth grade. To collect the data, the writer used pre-test and post-test, then the vocabulary test was used as the research instrument. To know whether there is an influence, the writer analyzed the data by using paired-sample T-test.The result shows that there is significant influence of vocabulary journal in teaching students’ vocabulary mastery.Keywords: Influence, vocabulary journal, students’ vocabulary mastery

  1. Vocabulary Teaching Strategies in College

    Institute of Scientific and Technical Information of China (English)

    张爱荣

    2009-01-01

    We all focus on the students' abilities of listening, speaking, wading, writing and translating in college teaching. But actually, it is nothing without vocabulary. Thus, vocabulary teaching is an essential part in English teaching. However, seme traditional teaching takes vocabuhury out from the context, which costs a lot of time and energy, but students are involved in the dull circle of memorizing to forgetting to memorizing again. Finally, they lose their patience on English learning and maybe give it up. In this paper, we discuss some vocabulary teaching strategies, so as to help the memorizing of vocabulary and enhance the efficiency of vocabulary teaching and learning.

  2. Standard controlled vocabulary for climate models

    Science.gov (United States)

    Moine, Marie-Pierre; Pascoe, Charlotte; Guilyardi, Eric; Ford, Rupert

    2010-05-01

    The scope of climate modeling has grown tremendously in the last 10 years, resulting in a large variety of climate models, increasing complexity with more physical or chemical components and huge volumes of data sets (simulation outputs). While significant efforts to standardise the associated metadata (i.e. data describing data and models) have already been made in recent projects (e.g. CF standard names for CMIP3), detailed standards documentation of the models and experiments that created this data is still lacking. The EU METAFOR Project (http://metaforclimate.eu) is specifically addressing this issue by creating new metadata schemas in cooperation with existing standards in Earth System Modeling (Curator, GridSpec, CF convention, NumSim, etc.). Descriptions of climate simulations, of the data they produce, and of the numerical models used to perform these simulations are all within the scope of METAFOR and these descriptions are assembled in a common information model (the CIM). Of particular note is the metadata for numerical models that is found in the CIM. This paper presents the controlled vocabulary (CV) that has been collected by METAFOR to describe (in a common manner) the components of the numerical models developed by the different modeling centres. This vocabulary is used in the model part of the web-based questionnaire that METAFOR has developed in support of the upcoming IPCC exercise (the CMIP5 questionnaire). The methods to (1) establish standards for this vocabulary via interactions with climate scientists, (2) utilise the vocabulary in the web-based questionnaire and (3) process the vocabulary for ingestion in the Earth System Grid (ESG) portal, are described. Governance aspects of this new controlled vocabulary are also addressed.

  3. Modelling Vocabulary Loss

    Science.gov (United States)

    Meara, Paul

    2004-01-01

    This paper describes some simple simulation models of vocabulary attrition. The attrition process is modelled using a random autonomous Boolean network model, and some parallels with real attrition data are drawn. The paper argues that applying a complex systems approach to attrition can provide some important insights, which suggest that real…

  4. Building Your Vocabulary

    Institute of Scientific and Technical Information of China (English)

    ScottThornbury

    2004-01-01

    “I'm not 100% convinced that memorizing the dictionary is the best way of improving your vocabulary,” says the character played by Hugh Grant in Woody Allen's film Small Time Crooks.Yet why not?Ifyou could memorize the dictionary-or even

  5. Maintaining continuity of clinical operations while implementing large-scale filmless operations.

    Science.gov (United States)

    Honea, R; Mensch, B

    1999-05-01

    Texas Children's Hospital is a pediatric tertiary care facility in the Texas Medical Center with a large-scale, Digital Imaging and Communications in Medicine (DICOM)-compliant picture archival and communications system (PACS) installation. As our PACS has grown from an ultrasound niche PACS into a full-scale, multimodality operation, assuring continuity of clinical operations has become the number one task of the PACS staff. As new equipment is acquired and incorporated into the PACS, workflow processes, responsibilities, and job descriptions must be revised to accommodate filmless operations. Round-the-clock clinical operations must be supported with round-the-clock service, including three shifts, weekends, and holidays. To avoid unnecessary interruptions in clinical service, this requirement includes properly trained operators and users, as well as service personnel. Redundancy is a cornerstone in assuring continuity of clinical operations. This includes all PACS components such as acquisition, network interfaces, gateways, archive, and display. Where redundancy is not feasible, spare parts must be readily available. The need for redundancy also includes trained personnel. Procedures for contingency operations in the event of equipment failures must be devised, documented, and rehearsed. Contingency operations might be required in the event of scheduled as well as unscheduled service events, power outages, network outages, or interruption of the radiology information system (RIS) interface. Methods must be developed and implemented for reporting and documenting problems. We have a Trouble Call service that records a voice message and automatically pages the PACS Console Operator on duty. We also have developed a Maintenance Module on our RIS system where service calls are recorded by technologists and service actions are recorded and monitored by PACS support personnel. In a filmless environment, responsibility for the delivery of images to the radiologist and

  6. Reading vocabulary knowledge and deafness.

    Science.gov (United States)

    Paul, P

    1996-01-01

    With respect to reading vocabulary knowledge and deafness, this article addresses two broad questions: (1) Why is vocabulary knowledge related to reading comprehension ability? (2) How is reading vocabulary (i.e., word meanings) acquired? The article argues that the answers to these questions are best addressed by a vocabulary acquisition model labeled the knowledge model. In essence, this model asserts that both breadth and depth of vocabulary knowledge are critical. It is necessary to teach vocabulary, especially to poor readers, who are not likely to derive many word meanings from the use of context during natural or deliberate reading situations. On the basis of theoretical and research syntheses, the article offers implications for vocabulary instruction for deaf children and adolescents.

  7. Academic literacy of South African higher education level students: Does vocabulary size matter?

    Directory of Open Access Journals (Sweden)

    Déogratias Nizonkiza

    2015-12-01

    Full Text Available This study explores the extent to which vocabulary size matters in academic literacy. Participants (first-year students at North-West University were administered the Vocabulary Levels Test (Schmitt, Schmitt and Clapham 2001. Scores from the test were used to estimate students’ vocabulary size and were subsequently mapped onto the levels distinguished by the Test of Academic Literacy Levels (TALL. Estimates show that, on average, the vocabulary size of first-year students at North-West University is approximately 4,500 word families, a size large enough to allow them to follow lectures in English. Furthermore, students with large vocabularies were found to have higher academic literacy proficiency, which establishes a strong relationship between vocabulary size and academic literacy. This relationship was also observed at the different word frequency bands the Vocabulary Levels Test consists of. These results support previous findings which established a relationship between vocabulary size and reading (cf. Nation 2006, and between vocabulary size and overall language proficiency (cf. Beglar 2010, Meara and Buxton 1987, Meara and Jones 1988, Nation and Beglar 2007, which could be extended to academic literacy. Furthermore, a stronger relationship between vocabulary size and academic literacy was found towards more infrequent word bands, indicating that infrequent word bands may best predict academic literacy. On the basis of these findings, we discuss possible strategies to adopt in order to assist some first-years with expanding their vocabularies

  8. Water Quality Vocabulary Development and Deployment

    Science.gov (United States)

    Simons, B. A.; Yu, J.; Cox, S. J.

    2013-12-01

    Semantic descriptions of observed properties and associated units of measure are fundamental to understanding of environmental observations, including groundwater, surface water and marine water quality. Semantic descriptions can be captured in machine-readable ontologies and vocabularies, thus providing support for the annotation of observation values from the disparate data sources with appropriate and accurate metadata, which is critical for achieving semantic interoperability. However, current stand-alone water quality vocabularies provide limited support for cross-system comparisons or data fusion. To enhance semantic interoperability, the alignment of water-quality properties with definitions of chemical entities and units of measure in existing widely-used vocabularies is required. Modern ontologies and vocabularies are expressed, organized and deployed using Semantic Web technologies. We developed an ontology for observed properties (i.e. a model for expressing appropriate controlled vocabularies) which extends the NASA/TopQuadrant QUDT ontology for Unit and QuantityKind with two additional classes and two properties (see accompanying paper by Cox, Simons and Yu). We use our ontology to populate the Water Quality vocabulary with a set of individuals of each of the four key classes (and their subclasses), and add appropriate relationships between these individuals. This ontology is aligned with other relevant stand-alone Water Quality vocabularies and domain ontologies. Developing the Water Quality vocabulary involved two main steps. First, the Water Quality vocabulary was populated with individuals of the ObservedProperty class, which was determined from a census of existing datasets and services. Each ObservedProperty individual relates to other individuals of Unit and QuantityKind (taken from QUDT where possible), and to IdentifiedObject individuals. As a large fraction of observed water quality data are classified by the chemical substance involved, the

  9. Large Eddy Simulation of Transient Flow, Solidification, and Particle Transport Processes in Continuous-Casting Mold

    Science.gov (United States)

    Liu, Zhongqiu; Li, Linmin; Li, Baokuan; Jiang, Maofa

    2014-07-01

    The current study developed a coupled computational model to simulate the transient fluid flow, solidification, and particle transport processes in a slab continuous-casting mold. Transient flow of molten steel in the mold is calculated using the large eddy simulation. An enthalpy-porosity approach is used for the analysis of solidification processes. The transport of bubble and non-metallic inclusion inside the liquid pool is calculated using the Lagrangian approach based on the transient flow field. A criterion of particle entrapment in the solidified shell is developed using the user-defined functions of FLUENT software (ANSYS, Inc., Canonsburg, PA). The predicted results of this model are compared with the measurements of the ultrasonic testing of the rolled steel plates and the water model experiments. The transient asymmetrical flow pattern inside the liquid pool exhibits quite satisfactory agreement with the corresponding measurements. The predicted complex instantaneous velocity field is composed of various small recirculation zones and multiple vortices. The transport of particles inside the liquid pool and the entrapment of particles in the solidified shell are not symmetric. The Magnus force can reduce the entrapment ratio of particles in the solidified shell, especially for smaller particles, but the effect is not obvious. The Marangoni force can play an important role in controlling the motion of particles, which increases the entrapment ratio of particles in the solidified shell obviously.

  10. Erosion of Ag surface by continuous irradiation with slow, large Ar clusters

    Energy Technology Data Exchange (ETDEWEB)

    Rzeznik, Lukasz, E-mail: lukasz.rzeznik@uj.edu.pl [Institute of Physics, Jagiellonian University, Reymonta 4, Krakow (Poland); Paruch, Robert [Institute of Physics, Jagiellonian University, Reymonta 4, Krakow (Poland); Garrison, Barbara J. [Department of Chemistry, Pennsylvania State University, University Park, PA 16802 (United States); Postawa, Zbigniew, E-mail: zbigniew.postawa@uj.edu.pl [Institute of Physics, Jagiellonian University, Reymonta 4, Krakow (Poland)

    2011-07-15

    Molecular dynamics computer simulations are employed to probe processes taking place during continuous irradiation of Ag(1 1 1) surface by keV Ar{sub 872} projectiles. Surface modification, the total sputtering yield, and the angular distributions of ejected species are calculated at fluences ranging from 0 up to {approx}6 x 10{sup 13} impacts/cm{sup 2}. It has been shown that two trends can be identified in the development of surface roughness. At the beginning surface roughness increases fast. This fast increase terminates around 1 x 10{sup 13} impacts/cm{sup 2} and is followed by a slow increase that finally saturates. The effect of the surface roughness on the sputtering yield depends on the impact angle. At normal incidence the sputtering yield is rather insensitive to the development of the surface topography. Modification of the surface morphology has, however, a significant influence on the total sputtering yield at large impact angles. Both the shape of the sputtering yield dependence on the impact angle and the angular spectra of ejected particles are sensitive to the surface roughness.

  11. Active Set Algorithm for Large-Scale Continuous Knapsack Problems with Application to Topology Optimization Problems

    CERN Document Server

    Tavakoli, Ruhollah

    2010-01-01

    The structure of many real-world optimization problems includes minimization of a nonlinear (or quadratic) functional subject to bound and singly linear constraints (in the form of either equality or bilateral inequality) which are commonly called as continuous knapsack problems. Since there are efficient methods to solve large-scale bound constrained nonlinear programs, it is desirable to adapt these methods to solve knapsack problems, while preserving their efficiency and convergence theories. The goal of this paper is to introduce a general framework to extend a box-constrained optimization solver to solve knapsack problems. This framework includes two main ingredients which are O(n) methods; in terms of the computational cost and required memory; for the projection onto the knapsack constrains and the null-space manipulation of the related linear constraint. The main focus of this work is on the extension of Hager-Zhang active set algorithm (SIAM J. Optim. 2006, pp. 526--557). The main reasons for this ch...

  12. Receptive vocabulary differences in monolingual and bilingual children*

    Science.gov (United States)

    Bialystok, Ellen; Luk, Gigi; Peets, Kathleen F.; Yang, Sujin

    2015-01-01

    Studies often report that bilingual participants possess a smaller vocabulary in the language of testing than monolinguals, especially in research with children. However, each study is based on a small sample so it is difficult to determine whether the vocabulary difference is due to sampling error. We report the results of an analysis of 1,738 children between 3 and 10 years old and demonstrate a consistent difference in receptive vocabulary between the two groups. Two preliminary analyses suggest that this difference does not change with different language pairs and is largely confined to words relevant to a home context rather than a school context. PMID:25750580

  13. The effect of vocabulary notebooks on vocabulary acquisition

    OpenAIRE

    Bozkurt, Neval

    2007-01-01

    Ankara : The Department of Teaching English as a Foreign Language, Bilkent University, 2007. Thesis (Master's) -- Bilkent University, 2007. Includes bibliographical references leaves 82-87 This study investigated the effectiveness of vocabulary notebooks on vocabulary acquisition, and the attitudes of teachers and learners towards keeping vocabulary notebooks. The study was conducted with the participation of 60 pre-intermediate level students, divided into one treatment ...

  14. VOCABULARY AND LANGUAGE TEACHING

    Directory of Open Access Journals (Sweden)

    Abrudan Cristiana

    2010-12-01

    Full Text Available In this paper we have looked at the difference between teaching language structure and teaching vocabulary. We have discussed how counts of frequency alone are not enough to determine what words should be taught. We have seen that knowing a word means more than just knowing its meaning. Even that is problematical since meaning includes sense relations and context, for example. To know a word we also need to know about its use, how it is formed and what grammatical behavior it provokes. Above all, in this paper, we have approached the idea of how vocabulary teaching and learning need to be emphasized in order for students to be competent language users.

  15. English Vocabulary Memorizing Strategies

    Institute of Scientific and Technical Information of China (English)

    侯首慧

    2014-01-01

    With the high-speed development of society, English has already become a university language and learning English is the basic requirement to learners. Vocabulary learning is one of the key factors in English Learning. This paper focuses on the vocabulary memories strategies.%随着社会高速发展,对任何学习者来说,掌握英语,这个世界性语言是学习中最基本的要求。词汇学习当然是英语学习中关键因素之一。本文将侧重介绍词汇记忆的策略。

  16. The electric vocabulary

    Science.gov (United States)

    Sheils, James

    2012-01-01

    Since the 1600s, the developments in the understanding of electrical phenomena have frequently altered the models and metaphors used by physicists to describe and explain their experiments. However, to this day, certain relics of past theories still drench the vocabulary of the subject, serving as distracting fog for future students. This article attempts, through historical illumination, to shine through the mist of electrostatic terminology and offer a clearer view of the classical model of electricity.

  17. The importance of Vocabulary In Medical English Teaching and Learning

    Institute of Scientific and Technical Information of China (English)

    彭凡

    2015-01-01

    Medical English vocabulary is considered to be one of indispensable components of language.Indeed, vocabulary forms the backbone and essence of medical English.All second language learners and their teachers are well aware of the fact that learning a second language involves the learning of a large number of words.Without the knowledge of words,language learning will turn out to be "a castle in the air".

  18. Online Learning Experiences of New versus Continuing Learners: A Large-Scale Replication Study

    Science.gov (United States)

    Li, Nai; Marsh, Vicky; Rienties, Bart; Whitelock, Denise

    2017-01-01

    A vast body of research has indicated the importance of distinguishing new vs. continuing students' learning experiences in blended and online environments. Continuing learners may have developed learning and coping mechanisms for "surviving" in such learning environments, while new learners might still need to adjust their learning…

  19. Online Learning Experiences of New versus Continuing Learners: A Large-Scale Replication Study

    Science.gov (United States)

    Li, Nai; Marsh, Vicky; Rienties, Bart; Whitelock, Denise

    2017-01-01

    A vast body of research has indicated the importance of distinguishing new vs. continuing students' learning experiences in blended and online environments. Continuing learners may have developed learning and coping mechanisms for "surviving" in such learning environments, while new learners might still need to adjust their learning…

  20. Features of Medical English Vocabulary

    Institute of Scientific and Technical Information of China (English)

    刘翠萍

    2015-01-01

    Medical English is relatively more difficult than general English,especially its vocabulary.Those medical English words are long and complex,making it hard to remember.But medical English vocabulary has its own features,which would help us in learning vocabulary.On the basis of many medical English materials,the paper explores the features of etymology,affixes and roots of medical English.

  1. Features of Medical English Vocabulary

    Institute of Scientific and Technical Information of China (English)

    刘翠萍

    2015-01-01

    Medical English is relatively more difficult than general English,especially its vocabulary.Those medical English words are long and complex,making it hard to remember. But medical English vocabulary has its own features,which would help us in learning vocabulary.On the basis of many medical English materials,the paper explores the features of etymology,affixes and roots of medical English.

  2. Summarizing Vocabularies in the Global Semantic Web

    Institute of Scientific and Technical Information of China (English)

    Xiang Zhang; Gong Cheng; Wei-Yi Ge; Yu-Zhong Qu

    2009-01-01

    In the Semantic Web, vocabularies are defined and shared among knowledge workers to describe linked data for scientific, industrial or daily life usage. With the rapid growth of online vocabularies, there is an emergent need for approaches helping users understand vocabularies quickly. In this paper, we study the summarization of vocabularies to help users understand vocabularies. Vocabulary summarization is based on the structural analysis and pragmatics statistics in the global Semantic Web. Local Bipartite Model and Expanded Bipartite Model of a vocabulary are proposed to characterize the structure in a vocabulary and links between vocabularies. A structural importance for each RDF sentence in the vocabulary is assessed using link analysis. Meanwhile, pragmatics importance of each RDF sentence is assessed using the statistics of instantiation of its terms in the Semantic Web. Summaries are produced by extracting important RDF sentences in vocabularies under a re-ranking strategy. Preliminary experiments show that it is feasible to help users understand a vocabulary through its summary.

  3. Enhancing vocabulary acquisition by encouraging extensive reading

    Institute of Scientific and Technical Information of China (English)

    奚亚芳

    2012-01-01

    Current situation of vocabulary teaching The importance of vocabulary in learning a second or foreign language has been widely acknowledged and the findings of a sea of research studies have convinced us to regard vocabulary k nowledge as a

  4. Learners' independent records of vocabulary

    DEFF Research Database (Denmark)

    Shaw, Philip; Leeke, Philip

    1999-01-01

    Handbooks recommend a variety of quite complicated procedures for learning and remembering vocabulary, but most learners only engage in very simple procedures. The aim of this project was to establish a basis for identifying optimal vocabulary recording procedures by finding out what learners...... currently do. We administered a questionnaire, interviewed learners who said that they kept vocabulary records of some kind and examined their records. Two-thirds had given up making vocabulary lists on entering the L2 environment and/or starting to read extensively, but several made interesting lists...

  5. Ventilation rates in large commercial layer hen houses with two-year continuous monitoring.

    Science.gov (United States)

    Chai, L; Ni, J-Q; Diehl, C A; Kilic, I; Heber, A J; Chen, Y; Cortus, E L; Bogan, B W; Lim, T T; Ramirez-Dorronsoro, J-C; Chen, L

    2012-01-01

    1. Ventilation controls the indoor environment and is critical for poultry production and welfare. Ventilation is also crucial for assessing aerial pollutant emissions from the poultry industry. Published ventilation data for commercial layer houses have been limited, and are mostly based on short-term studies, mainly because monitoring airflow from large numbers of fans is technically challenging. 2. A two-year continuous ventilation monitoring trial was conducted at two commercial manure belt houses (A and B), each with 250 000 layers and 88 130-cm exhaust fans. All the fans were individually monitored with fan rotational speed sensors or vibration sensors. Differential static pressures across the house walls were also measured. Three fan performance assessment methods were applied periodically to determine fan degradations. Fan models were developed to calculate house ventilations. 3. A total of 693 and 678 complete data days, each containing >16 h of valid ventilation data, were obtained in houses A and B, respectively. The two-year mean ventilation rates of houses A and B were 2·08 and 2·10 m(3) h(-1) hen(-1), corresponding to static pressures of -36·5 and -48·9 Pa, respectively. For monthly mean ventilation, the maximum rates were 4·87 and 5·01 m(3) h(-1) hen(-1) in July 2008, and the minimum were 0·59 and 0·81 m(3) h(-1) hen(-1) in February 2008, for houses A and B, respectively. 4. The two-year mean ventilation rates were similar to those from a survey in Germany and a 6-month study in Indiana, USA, but were much lower than the 8·4 and 6·2 m(3) h(-1) hen(-1) from a study in Italy. The minimum monthly mean ventilation rates were similar to the data obtained in winter in Canada, but were lower than the minimum ventilation suggested in the literature. The lower static pressure in house B required more ventilation energy input. The two houses, although identical, demonstrated differences in indoor environment controls

  6. On Vocabulary Acquisition by Chinese Learners

    Institute of Scientific and Technical Information of China (English)

    崔莉; 南二丽

    2006-01-01

    It is admitted that vocabulary acquisition, as the smallest unit in English leaning, is the most basic, decisive yet difficult part. Yet vocabulary acquisition has always obsessed and fascinated Chinese learners of English. This paper mainly presents a discussion of English vocabulary acquisition by Chinese learners in the respect of vocabulary size and correct use. Through the analysis of the problems existing in the present vocabulary learning and teaching, author also presents some learning strategies to expand vocabulary size.

  7. Discussion on English Vocabulary and Description

    Institute of Scientific and Technical Information of China (English)

    Shen Lan; Zhang Shiying

    2013-01-01

    Compared with the study of Grammar, syntax, the description on vocabulary is comparatively slower than them. The related theories of vocabulary description have fast developed since the 1980s and 1990s have experienced a growing interest in vocabulary learning and teaching----The vocabulary size, text coverage, word list, meaning of vocabulary in context, and collocation have been discovered and described, which helped new insights in arrange of different research fields have all added to our understanding of vocabulary development. Vocabulary acquisition research, based on vocabulary description, has established itself as a central research focus for language acquisition researchers and contributed to the focus of practical teaching and learning in English.

  8. The Relationship between Vocabulary Learning Strategies and Vocabulary Size

    Science.gov (United States)

    Rashidi, Nasser; Mortazavi, Fariba

    2012-01-01

    This research investigated the relationship between vocabulary learning strategies and vocabulary size of Iranian university EFL students. Participants in the present study were a total of 67 EFL learners, studying at Shiraz Azad University as senior English Translation students. The instruments utilized for data collection were three tests: A…

  9. Problems of Controlled Vocabulary versus Uncontrolled Vocabulary in Subject Indexing

    Directory of Open Access Journals (Sweden)

    Chao-chen Chen

    1998-12-01

    Full Text Available This article is mainly to survey the centennial controversy between controlled vocabulary v. uncontrolled vocabulary of subject indexing in the western library and information society. We also discuss the related problems in Chinese information retrieval systems and analyze the factors affecting their performance. [Article content in Chinese

  10. The Relationship between Vocabulary Learning Strategies and Vocabulary Size

    Science.gov (United States)

    Rashidi, Nasser; Mortazavi, Fariba

    2012-01-01

    This research investigated the relationship between vocabulary learning strategies and vocabulary size of Iranian university EFL students. Participants in the present study were a total of 67 EFL learners, studying at Shiraz Azad University as senior English Translation students. The instruments utilized for data collection were three tests: A…

  11. Improving Vocabulary of English Language Learners through Direct Vocabulary Instruction

    Science.gov (United States)

    Hunt, Meghan; Feng, Jay

    2016-01-01

    This is a report of a professional development project. The purpose of the project was to provide professional development to teachers in vocabulary instructional strategies and to examine vocabulary acquisition of English language learners. The participants were 8 second grade ELL students and 6 second grade teachers. The eight second grade…

  12. Supporting continuous learning in a large organization: the role of group and organizational perspectives

    Energy Technology Data Exchange (ETDEWEB)

    Mulholland, Paul; Zdrahal, Zdenek; Domingue, John [Open Univ., Knowledge Media Inst., Milton Keynes (United Kingdom)

    2005-03-01

    Many organizations recognize the need to continuously adapt and learn in order to survive and remain competitive. Learning and therefore change in organizations is driven in two ways. First, there is strategically driven learning, motivated by high-level factors such as market changes, company mergers and newly emerging approaches to organizational management and workplace learning. These changes reveal themselves in the introduction of new training programmes, recruitment strategies and knowledge management methodologies. Second, there is local, continuous learning occurring from the ground up. This is revealed as workers become more adept at their job through experience and collaboration with colleagues. Continuous learning is more gradual and requires local autonomy. This paper describes an experiment in supporting local, continuous learning, and its dissemination, but driven by a strategic initiative of the organization. This work raised many issues concerning the difficulty of integrating local and global organizational influences on learning. We outline lessons learned and suggestions as to the extent to which it is possible to align continuous learning with a company-wide perspective. (Author)

  13. The instructional design of teaching vocabularies in context of corpus in Senior High School

    Institute of Scientific and Technical Information of China (English)

    孙玲

    2016-01-01

    In this paper, the instructional design of vocabulary teaching is to combine vocabulary teaching in context based on some open online corpus which are come from network.In this paper, and the author’s hypothesis is that the instructional design can stimulate students’ learning interest and autonomy.What’s more, a large number of authentic information of various contexts demonstrated from corpus which is beneficial for students’ enhancing the ability of input and output of targeted vocabulary.

  14. A Quantile Regression Approach to Understanding the Relations Between Morphological Awareness, Vocabulary, and Reading Comprehension in Adult Basic Education Students

    Science.gov (United States)

    Tighe, Elizabeth L.; Schatschneider, Christopher

    2015-01-01

    The purpose of this study was to investigate the joint and unique contributions of morphological awareness and vocabulary knowledge at five reading comprehension levels in Adult Basic Education (ABE) students. We introduce the statistical technique of multiple quantile regression, which enabled us to assess the predictive utility of morphological awareness and vocabulary knowledge at multiple points (quantiles) along the continuous distribution of reading comprehension. To demonstrate the efficacy of our multiple quantile regression analysis, we compared and contrasted our results with a traditional multiple regression analytic approach. Our results indicated that morphological awareness and vocabulary knowledge accounted for a large portion of the variance (82-95%) in reading comprehension skills across all quantiles. Morphological awareness exhibited the greatest unique predictive ability at lower levels of reading comprehension whereas vocabulary knowledge exhibited the greatest unique predictive ability at higher levels of reading comprehension. These results indicate the utility of using multiple quantile regression to assess trajectories of component skills across multiple levels of reading comprehension. The implications of our findings for ABE programs are discussed. PMID:25351773

  15. Large-Scale mRNA Transfection of Dendritic Cells by Electroporation in Continuous Flow Systems

    DEFF Research Database (Denmark)

    Selmeczi, Dávid; Hansen, Thomas Steen; Met, Özcan

    2016-01-01

    Electroporation is well established for transient mRNA transfection of many mammalian cells, including immune cells such as dendritic cells used in cancer immunotherapy. Therapeutic application requires methods to efficiently electroporate and transfect millions of immune cells in a fast process...... the instrumentation and methods needed for the efficient transfection by electroporation of millions of dendritic cells in one continuous flow process....... with high cell survival. Continuous flow of suspended dendritic cells through a channel incorporating spatially separated microporous meshes with a synchronized electrical pulsing sequence can yield dendritic cell transfection rates of >75 % with survival rates of >90 %. This chapter describes...

  16. Strategies for teaching and learning vocabulary

    Directory of Open Access Journals (Sweden)

    Feng Teng

    2014-11-01

    Full Text Available Abstract This article presents an overview of current research on second language vocabulary learning and proposes eight strategies for teaching and learning vocabulary. First, to facilitate effective vocabulary teaching, choosing high-frequency words is essential. Teachers of vocabulary also need to add explicit, intentional teaching to incidental learning. In addition, vocabulary learning strategies including morphological awareness and lexical inference provides a platform by which learners can improve both receptive and productive vocabulary knowledge. This article also suggests that productive vocabulary knowledge needs more attention than receptive vocabulary knowledge, and that available textbooks seldom address vocabulary sufficiently. In summary, it is very important for all learners and teachers to acknowledge that learning vocabulary is incremental in nature, and we should develop a principled, long-term program for teaching and learning vocabulary.

  17. Essential French Vocabulary Teach Yourself

    CERN Document Server

    Saint-Thomas, Noel

    2010-01-01

    Essential French Vocabulary is the course for you if you need help with your study of French. This fully revised edition of our best-selling course now comes with free downloadable audio support containing hints on how to learn vocabulary effectively.

  18. Teaching Vocabulary for Peace Education.

    Science.gov (United States)

    de Matos, Francisco Gomes

    2002-01-01

    Shows English-as-a-Second-Language educators how vocabulary teaching can become humanizingly meaningful through the use of techniques inspired by some of the interdependent traditions to peace, and to make a plea for ESL teachers and learners to humanize their repertoires of best practices in vocabulary teaching and learning. (Author/VWL)

  19. Methods of Enlarging English Vocabulary

    Institute of Scientific and Technical Information of China (English)

    丁小航

    2012-01-01

      In order to enlarge English vocabulary , we need to have some methods. I’d like to share my experience with begin⁃ners how I enlarge English vocabulary when when I am learning English. It is a long process and needs hard work and patience.

  20. The State of Vocabulary Research

    Science.gov (United States)

    Hairrell, Angela; Rupley, William; Simmons, Deborah

    2011-01-01

    Twenty-four studies were included in this systematic review of vocabulary research literature. The review corroborates the findings of past studies that several strategies have emerged that increase students' vocabulary knowledge. Findings further reinforce the National Reading Panel's recommendations regarding the context and magnitude of studies…

  1. Reading, Dictionaries, and Vocabulary Learning.

    Science.gov (United States)

    Luppescu, Stuart; Day, Richard R.

    1993-01-01

    The usefulness of bilingual dictionaries for vocabulary learning was examined with 293 Japanese university students studying English as a foreign language. Students who used a dictionary during reading scored significantly better on a vocabulary test than those who did not, but there was evidence for differential item functioning. (25 references)…

  2. VOCABULARY AND LANGUAGE TEACHING

    OpenAIRE

    Abrudan Cristiana

    2010-01-01

    In this paper we have looked at the difference between teaching language structure and teaching vocabulary. We have discussed how counts of frequency alone are not enough to determine what words should be taught. We have seen that knowing a word means more than just knowing its meaning. Even that is problematical since meaning includes sense relations and context, for example. To know a word we also need to know about its use, how it is formed and what grammatical behavior it provokes. Above ...

  3. Tectonic Vocabulary & Materialization

    DEFF Research Database (Denmark)

    Hvejsel, Marie Frier; Beim, Anne; Bundgaard, Charlotte

    2015-01-01

    By referring to the fundamental question of how we unite aesthetics and technology – tectonic theory is necessarily a focal point in the development of the architectural discipline. However, a critical reconsideration of the role of tectonic theory seems necessary when facing the present everyday...... architectural practice. In this matter the paper focuses on the need to juxtapose theoretical studies, to bring the present vocabulary of the tectonic further, as well as to spur further practical experiments enabling theory to materialize in the everyday of the current practice....

  4. Nuclear engineering vocabulary

    Energy Technology Data Exchange (ETDEWEB)

    Dumont, X. [FRAMATOME, Dept. Corporate R and D, 92 - Paris-La-Defence (France); Andrieux, C. [CEA Saclay, Direction des Technologies de l' Information, DTI, 91 - Gif sur Yvette (France)

    2001-07-01

    The members of the CSTNIN - the Special Commission for Nuclear Engineering Terminology and Neology - have just produced a Nuclear Engineering Vocabulary, published by SFEN. A 120-page document which, to date, includes 400 nuclear engineering terms or expressions. For each term or expression, this Glossary gives: the primary and secondary subject field in which it is applied, a possible abbreviation, its definition, a synonym if appropriate, any relevant comments, any associated word(s), the English equivalent, its status on the date of publication of the Glossary. (author)

  5. Tectonic Vocabulary & Materialization

    DEFF Research Database (Denmark)

    Hvejsel, Marie Frier; Beim, Anne; Bundgaard, Charlotte

    2015-01-01

    to establish a Nordic Network for Research and Teaching in Tectonics is currently forming. This paper seeks to jointly reflect upon these initiatives in order to bring them further, with the intention to clad a discourse on the future of tectonic architectural research that addresses the conditions of everyday...... architectural practice. In this matter the paper focuses on the need to juxtapose theoretical studies, to bring the present vocabulary of the tectonic further, as well as to spur further practical experiments enabling theory to materialize in the everyday of the current practice....

  6. Large-scale separation of amino acids by continuous displacement chromatography

    Energy Technology Data Exchange (ETDEWEB)

    DeCarli, J.P. II; Carta, G.; Byers, C.H.

    1989-10-01

    Continuous annular chromatography (CAC) is a developing technology that allows truly continuous chromatographic separations. Previous work has demonstrated the utility of this technology for the separation of various materials by isocratic elution on a bench scale. Novel applications and improved operation of the process were studied in this work, demonstrating that CAC is a versatile apparatus which is capable of separations at high throughput. Three specific separation systems were investigated. Pilot-scale separations at high loadings were performed using an industrial sugar mixture as an example of scale-up for isocratic separations. Bench-scale experiments of a low concentration metal ion mixture were performed to demonstrate stepwise elution, a chromatographic technique which decreases dilution and increases sorbent capacity. Finally, the separation of mixtures of amino acids by ion exchange was investigated to demonstrate the use of displacement development on the CAC. This technique, which perhaps has the most potential, when applied to the CAC allowed simultaneous separation and concentration of multicomponent mixtures on a continuous basis. Mathematical models were developed to describe the CAC performance and optimize the operating conditions. For all the systems investigated, the continuous separation performance of the CAC was found to be very nearly the same as the batchwise performance of conventional chromatography. The technology appears, thus, to be very promising for industrial applications.

  7. Inertial amplification of continuous structures: Large band gaps from small masses

    DEFF Research Database (Denmark)

    Frandsen, Niels Morten Marslev; Bilal, Osama R.; Jensen, Jakob Søndergaard;

    2016-01-01

    We investigate wave motion in a continuous elastic rod with a periodically attached inertial amplification mechanism. The mechanism has properties similar to an “inerter” typically used in vehicle suspensions, however here it is constructed and utilized in a manner that alters the intrinsic prope...

  8. Teaching English Vocabulary to Elementary Mexican American Students in South Texas: Some Responsive Modern Instructional Strategies

    Science.gov (United States)

    Ekiaka Nzai, Valentin; Reyna, Concepción

    2014-01-01

    Teaching reading and vocabulary to Mexican American children in the United States of America today requires an acknowledgment of historical social injustice that continues to affect many communities in South Texas. This article debriefs some vocabulary teaching strategies--such as mnemonics and game play under the learning centers…

  9. Vocabulary Instruction in Fifth Grade and Beyond: Sources of Word Learning and Productive Contexts for Development

    Science.gov (United States)

    Ford-Connors, Evelyn; Paratore, Jeanne R.

    2015-01-01

    Increasing the vocabulary knowledge of young adolescent and adolescent students has been a focal point of educational research and many teacher professional development initiatives. Yet many teachers continue to use traditional, but generally ineffective, methods of classroom-based vocabulary instruction. Synthesizing the literature around the…

  10. Teaching English Vocabulary to Elementary Mexican American Students in South Texas: Some Responsive Modern Instructional Strategies

    Science.gov (United States)

    Ekiaka Nzai, Valentin; Reyna, Concepción

    2014-01-01

    Teaching reading and vocabulary to Mexican American children in the United States of America today requires an acknowledgment of historical social injustice that continues to affect many communities in South Texas. This article debriefs some vocabulary teaching strategies--such as mnemonics and game play under the learning centers…

  11. Results from one-year continuous operation of a large aperture scintillometer over a heterogeneous land surface

    NARCIS (Netherlands)

    Beyrich, F.; DeBruin, H.A.R.; Meijninger, W.M.L.; Schipper, J.W.; Lohse, H.

    2002-01-01

    A large-aperture scintillometer (LAS) was operated continuously during a period of more than one year over a heterogeneous land surface in Central Europe at the transition between marine and continental climates. The LAS measurements of the refractive index structure parameter, C N2, were used to es

  12. Large-Scale Production of CdSe Nanocrystal by a Continuous Flow Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Kawa, Manabu, E-mail: 508532@cc.m-kagaku.co.jp; Morii, Hidekazu; Ioku, Atau; Saita, Soichiro [MCC-Group Science and Technology Research Center, Mitsubishi Chemical Corporation (Japan); Okuyama, Kikuo [Hiroshima University, Department of Chemical Engineering, Graduate School of Engineering (Japan)

    2003-04-15

    Organically capped CdSe nanocrystals were successfully produced by a continuous flow reactor in 13 g/h rate as isolated CdSe nanocrystal, using trioctylphosphine oxide (TOPO) both as the capping organic reagent and the high-temperature reaction solvent. Relatively high reaction temperature (e.g. 350 deg. C) was necessary for matured crystal growth. The quality of TOPO (i.e. impurity composition such like phosphonic acids) was also influential on the quality of the resulting CdSe nanocrystal. The continuous flow reactor was able to produce highly-luminescence, monodispersed CdSe nanocrystals, confirmed by transmission electron microscope observation. The production rate was stable at least 1 h to allow over 10 g production.

  13. Tracing children's vocabulary development from preschool through the school-age years: an 8-year longitudinal study.

    Science.gov (United States)

    Song, Shuang; Su, Mengmeng; Kang, Cuiping; Liu, Hongyun; Zhang, Yuping; McBride-Chang, Catherine; Tardif, Twila; Li, Hong; Liang, Weilan; Zhang, Zhixiang; Shu, Hua

    2015-01-01

    In this 8-year longitudinal study, we traced the vocabulary growth of Chinese children, explored potential precursors of vocabulary knowledge, and investigated how vocabulary growth predicted future reading skills. Two hundred and sixty-four (264) native Chinese children from Beijing were measured on a variety of reading and language tasks over 8 years. Between the ages of 4 to 10 years, they were administered tasks of vocabulary and related cognitive skills. At age 11, comprehensive reading skills, including character recognition, reading fluency, and reading comprehension were examined. Individual differences in vocabulary developmental profiles were estimated using the intercept-slope cluster method. Vocabulary development was then examined in relation to later reading outcomes. Three subgroups of lexical growth were classified, namely high-high (with a large initial vocabulary size and a fast growth rate), low-high (with a small initial vocabulary size and a fast growth rate) and low-low (with a small initial vocabulary size and a slow growth rate) groups. Low-high and low-low groups were distinguishable mostly through phonological skills, morphological skills and other reading-related cognitive skills. Childhood vocabulary development (using intercept and slope) explained subsequent reading skills. Findings suggest that language-related and reading-related cognitive skills differ among groups with different developmental trajectories of vocabulary, and the initial size and growth rate of vocabulary may be two predictors for later reading development.

  14. The association between perinatal testosterone concentration and early vocabulary development: a prospective cohort study.

    Science.gov (United States)

    Hollier, Lauren P; Mattes, Eugen; Maybery, Murray T; Keelan, Jeffrey A; Hickey, Martha; Whitehouse, Andrew J O

    2013-02-01

    Prenatal exposure to testosterone is known to affect fetal brain maturation and later neurocognitive function. However, research on the effects of prenatal testosterone exposure has been limited by indirect measures of testosterone and small unrepresentative samples. This study investigated whether bioavailable testosterone (BioT) concentrations in umbilical cord blood are associated with expressive vocabulary development, in a large birth cohort. Cord blood samples were taken immediately after delivery and expressive vocabulary was measured at two years of age using the language development survey (LDS). BioT concentration significantly predicted vocabulary size in males (n=197), such that higher concentrations were associated with lower LDS scores, indicating smaller vocabulary. This relationship between BioT concentrations and vocabulary at aged 2 years was not observed in girls (n=176). Higher circulating prenatal testosterone concentrations at birth may be associated with reduced vocabulary in early childhood among boys.

  15. Effective Strategies for Turning Receptive Vocabulary into Productive Vocabulary in EFL Context

    Science.gov (United States)

    Faraj, Avan Kamal Aziz

    2015-01-01

    Vocabulary acquisition has been a main concern of EFL English teachers and learners. There have been tons of research to examine the student's level of receptive vocabulary and productive vocabulary, but no research has conducted on how turning receptive vocabulary into productive vocabulary. This study has reported the impact of the teaching…

  16. FL Vocabulary Learning of Undergraduate English Majors in Western China: Perspective, Strategy Use and Vocabulary Size

    Science.gov (United States)

    Zhang, Baicheng

    2009-01-01

    The present study, by use of questionnaire and vocabulary tests, has investigated the foreign language vocabulary learning situation of 481 undergraduates in terms of their perspective of vocabulary learning, strategy use and vocabulary size. Based on the questionnaire investigation and vocabulary level tests, the characteristics of the subjects'…

  17. Vocabulary Learning Strategies and Arabic Vocabulary Size among Pre-University Students in Malaysia

    Science.gov (United States)

    Baharudin, Harun; Ismail, Zawawi

    2014-01-01

    Vocabulary learning strategies and vocabulary size are among the main factors that help determine how students learn second language vocabulary. The present study was an attempt to exploring the relationship between vocabulary learning strategies and Arabic vocabulary size of 742 pre-university in "Religious High School" (SMKA) and…

  18. PROMOTING INCIDENTAL VOCABULARY LEARNING THROUGH VERBAL DRAMATIZATION OF WORDS

    Directory of Open Access Journals (Sweden)

    Looi-Chin Ch’ng

    2014-12-01

    Full Text Available Despite the fact that explicit teaching of vocabulary is often practised in English as a Second Language (ESL classrooms, it has been proven to be rather ineffective, largely because words are not taught in context. This has prompted the increasing use of incidental vocabulary learning approach, which emphasises on repeated readings as a source for vocabulary learning. By adopting this approach, this study aims to investigate students’ ability in learning vocabulary incidentally via verbal dramatization of written texts. In this case, readers’ theatre (RT is used as a way to allow learners to engage in active reading so as to promote vocabulary learning. A total of 160 diploma students participated in this case study and they were divided equally into two groups, namely classroom reading (CR and RT groups. A proficiency test was first conducted to determine their vocabulary levels. Based on the test results, a story was selected as the reading material in the two groups. The CR group read the story through a normal reading lesson in class while the RT group was required to verbally dramatize the text through readers’ theatre activity. Then, a post-test based on vocabulary levels was carried out and the results were compared. The findings revealed that incidental learning was more apparent in the RT group and their ability to learn words from the higher levels was noticeable through higher accuracy scores. Although not conclusive, this study has demonstrated the potential of using readers’ theatre as a form of incidental vocabulary learning activity in ESL settings.

  19. The Challenge of Effective Vocabulary Teaching

    Directory of Open Access Journals (Sweden)

    Cárdenas B. Melba Libia

    2001-08-01

    Full Text Available Helping students develop vocabulary competence is one of the main challenges English language teachers face. This paper addresses the main aspects we should consider when planning and developing lessons in terms of vocabulary improvement. To achieve that objective, we will analyse the linguistic background and principles of vocabulary teaching and learning, as well as some ways of opening up vocabulary.

  20. Second Language Vocabulary Growth at Advanced Level

    Science.gov (United States)

    Ozturk, Meral

    2016-01-01

    This study investigated the receptive vocabulary growth of advanced EFL learners in an English-medium degree programme. The study used the Vocabulary Size Test in a cross-sectional design to measure the vocabulary size of learners at various stages of study. The effect of word frequency on vocabulary development and the presence of an…

  1. Techniques for Vocabulary Teaching in Elementary English

    Institute of Scientific and Technical Information of China (English)

    刘丽华

    2004-01-01

    All teachers know very well how important vocabulary is in learning language, but, for many years, vocabulary has all been neglected in language teaching. In this essay will try to introduce some practical and effective methods in presenting, practising,and consolidating vocabulary in elementary level in which, I wish, the elementary teachers may get some inspiration for their vocabulary teaching.

  2. For ELLs: Vocabulary beyond the Definitions

    Science.gov (United States)

    Roberts, Nancy S.; Truxaw, Mary P.

    2013-01-01

    In this article, a classroom teacher discusses ambiguities in mathematics vocabulary and strategies for ELL students in building understanding. The authors note that mathematics vocabulary may be more difficult to learn than other academic vocabulary for several reasons: (1) definitions are filled with technical vocabulary, symbols, and diagrams;…

  3. A continuous nonlinear model approach to study the behavior of large signal DC to DC converters

    Science.gov (United States)

    Guinjoan, Francisco

    The study of signal switching DC-DC converters behavior is addressed. Given the fact that the linear methods cannot be used in this case, a nonlinear model was developed. The power stage nonlinear continuous model, which can be applied in both conduction modes (continuous and discontinuous), is obtained from the partition of the characteristic state vector variables in two subsets. This method is applied to the elementary switching cells (buck, boost, and buck-boost) and Cuk converter. It is oriented to the fast numerical simulation by means of general purpose simulation programs. Different results from numerical simulations, confirming the accuracy of the method used, either in an open loop or in a closed loop, are obtained, provided the validity of its domain is respected. The nonlinear model linearization made it possible to obtain equivalent transmittances for the DC-DC converters. Its application to a boost converter operating in the discontinuous condition mode at variable frequency rate enables the comparison of the obtained results with other existing methods and equivalence between the two of them to be easily established. The revision of the initial hypothesis leads to the establishment of a small signal model valid in the high frequency domain and to the results obtained being derived in a more systematic way. A model for switching DC-DC converters is given. Its validity is established, whatever its order and conduction modes, either in an open loop or a closed loop.

  4. Large-scale continuous process to vitrify nuclear defense waste: operating experience with nonradioactive waste

    Energy Technology Data Exchange (ETDEWEB)

    Cosper, M B; Randall, C T; Traverso, G M

    1982-01-01

    The developmental program underway at SRL has demonstrated the vitrification process proposed for the sludge processing facility of the DWPF on a large scale. DWPF design criteria for production rate, equipment lifetime, and operability have all been met. The expected authorization and construction of the DWPF will result in the safe and permanent immobilization of a major quantity of existing high level waste. 11 figures, 4 tables.

  5. Large Scale Production of Continuous Hydrogel Fibers with Anisotropic Swelling Behavior by Dynamic-Crosslinking-Spinning.

    Science.gov (United States)

    Hou, Kai; Wang, Huiyi; Lin, Yunyin; Chen, Shaohua; Yang, Shengyuan; Cheng, Yanhua; Hsiao, Benjamin S; Zhu, Meifang

    2016-10-14

    Hydrogel microfibers have been considered as a potential biomaterial to spatiotemporally biomimic 1D native tissues such as nerves and muscles which are always assembled hierarchically and have anisotropic response to external stimuli. To produce facile hydrogel microfibers in a mathematical manner, a novel dynamic-crosslinking-spinning (DCS) method is demonstrated for direct fabrication of size-controllable fibers from poly(ethylene glycol diacrylate) oligomer in large scale, without microfluidic template and in a biofriendly environment. The diameter of fibers can be precisely controlled by adjusting the spinning parameters. Anisotropic swelling property is also dependent on inhomogeneous structure generated in spinning process. Comparing with bulk hydrogels, the resulting fibers exhibit superior rapid water adsorption property, which can be attributed to the large surface area/volume ratio of fiber. This novel DCS method is one-step technology suitable for large-scale production of anisotropic hydrogel fibers which has a promising application in the area such as biomaterials. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  6. Modular Approach for Continuous Cell-Level Balancing to Improve Performance of Large Battery Packs: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Muneed ur Rehman, M.; Evzelman, M.; Hathaway, K.; Zane, R.; Plett, G. L.; Smith, K.; Wood, E.; Maksimovic, D.

    2014-10-01

    Energy storage systems require battery cell balancing circuits to avoid divergence of cell state of charge (SOC). A modular approach based on distributed continuous cell-level control is presented that extends the balancing function to higher level pack performance objectives such as improving power capability and increasing pack lifetime. This is achieved by adding DC-DC converters in parallel with cells and using state estimation and control to autonomously bias individual cell SOC and SOC range, forcing healthier cells to be cycled deeper than weaker cells. The result is a pack with improved degradation characteristics and extended lifetime. The modular architecture and control concepts are developed and hardware results are demonstrated for a 91.2-Wh battery pack consisting of four series Li-ion battery cells and four dual active bridge (DAB) bypass DC-DC converters.

  7. Large-Area Nanoparticle Films by Continuous Automated Langmuir-Blodgett Assembly and Deposition.

    Science.gov (United States)

    Li, Xue; Gilchrist, James F

    2016-02-09

    The operating parameters and resulting surface morphology of automated Langmuir-Blodgett deposition of monosized micrometer-scale silica colloids from an aqueous suspension are investigated. This apparatus allows continuous roll-to-roll deposition of particles into well-ordered arrays. The reproducible deposition of particle monolayers at low to moderate deposition rates at web speeds of less than 10 mm/s is possible and accurately characterized by a simple mass balance of particles deposited from solution. At faster deposition rates, Landau-Levich flow increases the film thickness such that flow instabilities hinder uniform particle deposition. A simple phase diagram outlines transitions from dispersed to multilayer coatings and from uniform to erratic deposition patterns. While the threshold of maximum deposition rate is well-defined for these conditions, changing operating parameters, particle size, and fluid viscosity and evaporation rate, the maximum speed can be increased significantly.

  8. Continuous Verification of Large Embedded Software using SMT-Based Bounded Model Checking

    CERN Document Server

    Cordeiro, Lucas; Marques-Silva, Joao

    2009-01-01

    The complexity of software in embedded systems has increased significantly over the last years so that software verification now plays an important role in ensuring the overall product quality. In this context, SAT-based bounded model checking has been successfully applied to discover subtle errors, but for larger applications, it often suffers from the state space explosion problem. This paper describes a new approach called continuous verification to detect design errors as quickly as possible by looking at the Software Configuration Management (SCM) system and by combining dynamic and static verification to reduce the state space to be explored. We also give a set of encodings that provide accurate support for program verification and use different background theories in order to improve scalability and precision in a completely automatic way. A case study from the telecommunications domain shows that the proposed approach improves the error-detection capability and reduces the overall verification time by...

  9. DSpace and customized controlled vocabularies

    Science.gov (United States)

    Skourlas, C.; Tsolakidis, A.; Kakoulidis, P.; Giannakopoulos, G.

    2015-02-01

    The open source platform of DSpace could be defined as a repository application used to provide access to digital resources. DSpace is installed and used by more than 1000 organizations worldwide. A predefined taxonomy of keyword, called the Controlled Vocabulary, can be used for describing and accessing the information items stored in the repository. In this paper, we describe how the users can create, and customize their own vocabularies. Various heterogeneous items, such as research papers, videos, articles and educational material of the repository, can be indexed in order to provide advanced search functionality using new controlled vocabularies.

  10. Vocabulary in SLA Theory and Practice

    OpenAIRE

    HUSTON, Laura

    2016-01-01

    Since the 1980's, vocabulary acquisition has been one of the most actively researched aspects of SLA (Lightbown & Spada, 2006). Four factors emerge in an investigation of the development of the role of L2 vocabulary learning in SLA. First, successive SLA theories marginalized vocabulary, often emphasizing the importance of grammar. Second, a growing body of empirical research showed the efficiency and effectiveness of direct vocabulary teaching. Third, overestimates of L1 vocabulary size led ...

  11. Vocabularies of happiness

    Directory of Open Access Journals (Sweden)

    Roxana Bratu

    2013-12-01

    Full Text Available This paper seeks to explore through interviews the vocabularies of happiness that interviewees invoke in face-to-face interactions to account for their happiness or lack thereof and, especially, for the (unhappiness of others. In other words, how do respondents present their own or others’ happiness – be they close or distant acquaintances, or people in general, in an interview conversation? Also, what understanding of others do these accounts make visible? This work embraces a discursive psychological (DP perspective, focusing on how different versions of happiness are being put together by respondents presenting themselves as competent and credible individuals, while at the same time positioning themselves in a moral order of happiness.

  12. Vocabulary development at home: A multimedia elaborated picture supporting parent-toddler interaction

    NARCIS (Netherlands)

    Gremmen, M.C.; Molenaar, I.; Teepe, R.C.

    2016-01-01

    Some children enter elementary school with large vocabulary delays, which negatively influence their later school performance.A rich home language environment can support vocabulary development through frequent high-quality parent–toddler interaction. Elaborated picture home activities can support

  13. Vocabulary Size Is Associated with Second-Language Vowel Perception Performance in Adult Learners

    Science.gov (United States)

    Bundgaard-Nielsen, Rikke L.; Best, Catherine T.; Tyler, Michael D.

    2011-01-01

    Improvement in second-language (L2) perception has been posited to occur early in L2 learning when the L2 vocabulary is still small, whereas a large L2 vocabulary curtails perceptual learning (the perceptual assimilation model for SLA [PAM-L2]; Best & Tyler, 2007). This proposition is extended by suggesting that early L2 lexical development…

  14. Early productive vocabulary predicts academic achievement 10 years later

    DEFF Research Database (Denmark)

    Bleses, Dorthe; Makransky, Guido; Dale, Philip

    2016-01-01

    We use a longitudinal design to examine associations for 2,120 16-30 months old children between early expressive vocabulary and later reading and math outcomes in the 6th Grade based on a large and diverse sample of Danish children. Educational outcomes, in particular decoding and reading...... comprehension, can be predicted from an early vocabulary measure as early as 16 months with effect sizes (in proportion of variance accounted for) comparable to one year’s mean growth in reading scores. The findings confirm in a relatively large population based study that late talkers are at risk for later...

  15. Learners' independent records of vocabulary

    DEFF Research Database (Denmark)

    Shaw, Philip; Leeke, Philip

    1999-01-01

    Handbooks recommend a variety of quite complicated procedures for learning and remembering vocabulary, but most learners only engage in very simple procedures. The aim of this project was to establish a basis for identifying optimal vocabulary recording procedures by finding out what learners...... currently do. We administered a questionnaire, interviewed learners who said that they kept vocabulary records of some kind and examined their records. Two-thirds had given up making vocabulary lists on entering the L2 environment and/or starting to read extensively, but several made interesting lists...... to be bilingual and single-word focused. The optimal listing procedures are those which represent a compromise between linguistically and psychologically effective practices and the amount of investment learners are actually prepared to put in. It is important to distinguish records made in class, which should...

  16. Continued improvment of large area, in situ sputter deposition of superconducting YBCO thin films

    Science.gov (United States)

    Truman, J. K.; White, W. R.; Ballentine, P. H.; Mallory, D. S.; Kadin, A. M.

    1993-01-01

    The deposition of thin films of superconducting YBa2Cu3O7-x onto substrates of up to 3-in diameter by an integrated off-axis sputtering is reported. The substrate is located above the center of an 8-in-diameter YBCO planar target, and, in conjunction with a negative ion shield, negative ion effects are avoided. A large radiant heater provides backside, noncontact heating of the bare substrates. YBCO films have been grown on polished 1-cm2 MgO and LaAlO3 substrates with Tc = 90 K or greater, Jc = 2.5 x 10 exp 6 A/sq cm or greater at 77 K, and microwave surface resistance Rs less than 0.4 micro-ohm at 77 K and 10 GHz. The films have a very smooth surface morphology. Uniformity data for LaAlO3 substrates are less than +/-5 percent in Rs. Thickness uniformity results for 3-in substrates indicate less than 10 percent variation. The growth of epitaxial insulating films for use with YBCO films and application of the YBCO films in microwave devices are briefly discussed.

  17. Student-Created Vocabulary Tests

    OpenAIRE

    Patterson, Donald

    2016-01-01

    In this paper is described a preliminary study at a Japanese university on student affect toward self-created vocabulary tests. In order to foster greater learner autonomy in their vocabulary study, students were tasked with selecting words they wished to learn and creating their own tests using a template provided by the teacher. At the end of the course, a survey examining student attitudes toward the activity was conducted with 140 participants. The results were encouraging as they indicat...

  18. TOEFL IBT vocabulary flash review

    CERN Document Server

    Llc, Learning Express

    2014-01-01

    The Test of English as a Foreign Language (TOEFL) measures the English proficiency of people whose native language isn't English. This portable guide features 600 essential TOEFL vocabulary flashcards, bound in a convenient book format, with definitions, sample sentences, synonyms, and pronunciation. The cards include the most-tested vocabulary on the exam. The perfect companion to any TOEFL study plan, this book is pocket-sized for portability and great for study anywhere, anytime!

  19. Reading and vocabulary acquisition: Supporting evidence and some objections

    Directory of Open Access Journals (Sweden)

    Stephen Krashen

    2013-01-01

    Full Text Available I continue here the long-standing discussion on the familiar topic of whether subconscious language acquisition is more powerful than conscious language learning, with a focus on vocabulary, adding recent studies as well as older ones I missed in previous publications on this topic (e.g. Krashen, 2004.

  20. Reading and vocabulary acquisition: Supporting evidence and some objections

    OpenAIRE

    Stephen Krashen

    2013-01-01

    I continue here the long-standing discussion on the familiar topic of whether subconscious language acquisition is more powerful than conscious language learning, with a focus on vocabulary, adding recent studies as well as older ones I missed in previous publications on this topic (e.g. Krashen, 2004).

  1. Second Language Vocabulary Learning and Teaching: Still a Hot Topic

    Science.gov (United States)

    Larrotta, Clarena

    2011-01-01

    For many reasons second language vocabulary learning and teaching continues to be a topic of interest for learners, instructors, and researchers. This article describes the implementation of personal glossaries in a community program offering English as second language classes to Latina/o Spanish speaking adults. Field notes, interviews, and…

  2. Space time relationship in continuously moving table method for large FOV peripheral contrast-enhanced magnetic resonance angiography

    Science.gov (United States)

    Sabati, M.; Lauzon, M. L.; Frayne, R.

    2003-09-01

    Data acquisition using a continuously moving table approach is a method capable of generating large field-of-view (FOV) 3D MR angiograms. However, in order to obtain venous contamination-free contrast-enhanced (CE) MR angiograms in the lower limbs, one of the major challenges is to acquire all necessary k-space data during the restricted arterial phase of the contrast agent. Preliminary investigation on the space-time relationship of continuously acquired peripheral angiography is performed in this work. Deterministic and stochastic undersampled hybrid-space (x, ky, kz) acquisitions are simulated for large FOV peripheral runoff studies. Initial results show the possibility of acquiring isotropic large FOV images of the entire peripheral vascular system. An optimal trade-off between the spatial and temporal sampling properties was found that produced a high-spatial resolution peripheral CE-MR angiogram. The deterministic sampling pattern was capable of reconstructing the global structure of the peripheral arterial tree and showed slightly better global quantitative results than stochastic patterns. Optimal stochastic sampling patterns, on the other hand, enhanced small vessels and had more favourable local quantitative results. These simulations demonstrate the complex spatial-temporal relationship when sampling large FOV peripheral runoff studies. They also suggest that more investigation is required to maximize image quality as a function of hybrid-space coverage, acquisition repetition time and sampling pattern parameters.

  3. Large-scale SNP analysis reveals clustered and continuous patterns of human genetic variation

    Directory of Open Access Journals (Sweden)

    Shriver Mark D

    2005-06-01

    Full Text Available Abstract Understanding the distribution of human genetic variation is an important foundation for research into the genetics of common diseases. Some of the alleles that modify common disease risk are themselves likely to be common and, thus, amenable to identification using gene-association methods. A problem with this approach is that the large sample sizes required for sufficient statistical power to detect alleles with moderate effect make gene-association studies susceptible to false-positive findings as the result of population stratification 12. Such type I errors can be eliminated by using either family-based association tests or methods that sufficiently adjust for population stratification 345. These methods require the availability of genetic markers that can detect and, thus, control for sources of genetic stratification among populations. In an effort to investigate population stratification and identify appropriate marker panels, we have analysed 11,555 single nucleotide polymorphisms in 203 individuals from 12 diverse human populations. Individuals in each population cluster to the exclusion of individuals from other populations using two clustering methods. Higher-order branching and clustering of the populations are consistent with the geographic origins of populations and with previously published genetic analyses. These data provide a valuable resource for the definition of marker panels to detect and control for population stratification in population-based gene identification studies. Using three US resident populations (European-American, African-American and Puerto Rican, we demonstrate how such studies can proceed, quantifying proportional ancestry levels and detecting significant admixture structure in each of these populations.

  4. Coherent Image Layout using an Adaptive Visual Vocabulary

    Energy Technology Data Exchange (ETDEWEB)

    Dillard, Scott E.; Henry, Michael J.; Bohn, Shawn J.; Gosink, Luke J.

    2013-03-06

    When querying a huge image database containing millions of images, the result of the query may still contain many thousands of images that need to be presented to the user. We consider the problem of arranging such a large set of images into a visually coherent layout, one that places similar images next to each other. Image similarity is determined using a bag-of-features model, and the layout is constructed from a hierarchical clustering of the image set by mapping an in-order traversal of the hierarchy tree into a space-filling curve. This layout method provides strong locality guarantees so we are able to quantitatively evaluate performance using standard image retrieval benchmarks. Performance of the bag-of-features method is best when the vocabulary is learned on the image set being clustered. Because learning a large, discriminative vocabulary is a computationally demanding task, we present a novel method for efficiently adapting a generic visual vocabulary to a particular dataset. We evaluate our clustering and vocabulary adaptation methods on a variety of image datasets and show that adapting a generic vocabulary to a particular set of images improves performance on both hierarchical clustering and image retrieval tasks.

  5. Coherent image layout using an adaptive visual vocabulary

    Science.gov (United States)

    Dillard, Scott E.; Henry, Michael J.; Bohn, Shawn; Gosink, Luke J.

    2013-03-01

    When querying a huge image database containing millions of images, the result of the query may still contain many thousands of images that need to be presented to the user. We consider the problem of arranging such a large set of images into a visually coherent layout, one that places similar images next to each other. Image similarity is determined using a bag-of-features model, and the layout is constructed from a hierarchical clustering of the image set by mapping an in-order traversal of the hierarchy tree into a space-filling curve. This layout method provides strong locality guarantees so we are able to quantitatively evaluate performance using standard image retrieval benchmarks. Performance of the bag-of-features method is best when the vocabulary is learned on the image set being clustered. Because learning a large, discriminative vocabulary is a computationally demanding task, we present a novel method for efficiently adapting a generic visual vocabulary to a particular dataset. We evaluate our clustering and vocabulary adaptation methods on a variety of image datasets and show that adapting a generic vocabulary to a particular set of images improves performance on both hierarchical clustering and image retrieval tasks.

  6. Effects of individualized word retrieval in kindergarten vocabulary intervention

    NARCIS (Netherlands)

    Damhuis, C.M.P.; Segers, P.C.J.; Scheltinga, F.; Verhoeven, L.T.W.

    2016-01-01

    We examined the effects of adaptive word retrieval intervention on a classroom vocabulary program on children's vocabulary acquisition in kindergarten. In the experimental condition, word retrieval was provided in a classroom vocabulary program, combining implicit and explicit vocabulary

  7. Continuous Flow Polymer Synthesis toward Reproducible Large-Scale Production for Efficient Bulk Heterojunction Organic Solar Cells.

    Science.gov (United States)

    Pirotte, Geert; Kesters, Jurgen; Verstappen, Pieter; Govaerts, Sanne; Manca, Jean; Lutsen, Laurence; Vanderzande, Dirk; Maes, Wouter

    2015-10-12

    Organic photovoltaics (OPV) have attracted great interest as a solar cell technology with appealing mechanical, aesthetical, and economies-of-scale features. To drive OPV toward economic viability, low-cost, large-scale module production has to be realized in combination with increased top-quality material availability and minimal batch-to-batch variation. To this extent, continuous flow chemistry can serve as a powerful tool. In this contribution, a flow protocol is optimized for the high performance benzodithiophene-thienopyrroledione copolymer PBDTTPD and the material quality is probed through systematic solar-cell evaluation. A stepwise approach is adopted to turn the batch process into a reproducible and scalable continuous flow procedure. Solar cell devices fabricated using the obtained polymer batches deliver an average power conversion efficiency of 7.2 %. Upon incorporation of an ionic polythiophene-based cathodic interlayer, the photovoltaic performance could be enhanced to a maximum efficiency of 9.1 %.

  8. Nutrient Regulation by Continuous Feeding Removes Limitations on Cell Yield in the Large-Scale Expansion of Mammalian Cell Spheroids

    Science.gov (United States)

    Weegman, Bradley P.; Nash, Peter; Carlson, Alexandra L.; Voltzke, Kristin J.; Geng, Zhaohui; Jahani, Marjan; Becker, Benjamin B.; Papas, Klearchos K.; Firpo, Meri T.

    2013-01-01

    Cellular therapies are emerging as a standard approach for the treatment of several diseases. However, realizing the promise of cellular therapies across the full range of treatable disorders will require large-scale, controlled, reproducible culture methods. Bioreactor systems offer the scale-up and monitoring needed, but standard stirred bioreactor cultures do not allow for the real-time regulation of key nutrients in the medium. In this study, β-TC6 insulinoma cells were aggregated and cultured for 3 weeks as a model of manufacturing a mammalian cell product. Cell expansion rates and medium nutrient levels were compared in static, stirred suspension bioreactors (SSB), and continuously fed (CF) SSB. While SSB cultures facilitated increased culture volumes, no increase in cell yields were observed, partly due to limitations in key nutrients, which were consumed by the cultures between feedings, such as glucose. Even when glucose levels were increased to prevent depletion between feedings, dramatic fluctuations in glucose levels were observed. Continuous feeding eliminated fluctuations and improved cell expansion when compared with both static and SSB culture methods. Further improvements in growth rates were observed after adjusting the feed rate based on calculated nutrient depletion, which maintained physiological glucose levels for the duration of the expansion. Adjusting the feed rate in a continuous medium replacement system can maintain the consistent nutrient levels required for the large-scale application of many cell products. Continuously fed bioreactor systems combined with nutrient regulation can be used to improve the yield and reproducibility of mammalian cells for biological products and cellular therapies and will facilitate the translation of cell culture from the research lab to clinical applications. PMID:24204645

  9. Nutrient regulation by continuous feeding removes limitations on cell yield in the large-scale expansion of Mammalian cell spheroids.

    Directory of Open Access Journals (Sweden)

    Bradley P Weegman

    Full Text Available Cellular therapies are emerging as a standard approach for the treatment of several diseases. However, realizing the promise of cellular therapies across the full range of treatable disorders will require large-scale, controlled, reproducible culture methods. Bioreactor systems offer the scale-up and monitoring needed, but standard stirred bioreactor cultures do not allow for the real-time regulation of key nutrients in the medium. In this study, β-TC6 insulinoma cells were aggregated and cultured for 3 weeks as a model of manufacturing a mammalian cell product. Cell expansion rates and medium nutrient levels were compared in static, stirred suspension bioreactors (SSB, and continuously fed (CF SSB. While SSB cultures facilitated increased culture volumes, no increase in cell yields were observed, partly due to limitations in key nutrients, which were consumed by the cultures between feedings, such as glucose. Even when glucose levels were increased to prevent depletion between feedings, dramatic fluctuations in glucose levels were observed. Continuous feeding eliminated fluctuations and improved cell expansion when compared with both static and SSB culture methods. Further improvements in growth rates were observed after adjusting the feed rate based on calculated nutrient depletion, which maintained physiological glucose levels for the duration of the expansion. Adjusting the feed rate in a continuous medium replacement system can maintain the consistent nutrient levels required for the large-scale application of many cell products. Continuously fed bioreactor systems combined with nutrient regulation can be used to improve the yield and reproducibility of mammalian cells for biological products and cellular therapies and will facilitate the translation of cell culture from the research lab to clinical applications.

  10. Nutrient regulation by continuous feeding removes limitations on cell yield in the large-scale expansion of Mammalian cell spheroids.

    Science.gov (United States)

    Weegman, Bradley P; Nash, Peter; Carlson, Alexandra L; Voltzke, Kristin J; Geng, Zhaohui; Jahani, Marjan; Becker, Benjamin B; Papas, Klearchos K; Firpo, Meri T

    2013-01-01

    Cellular therapies are emerging as a standard approach for the treatment of several diseases. However, realizing the promise of cellular therapies across the full range of treatable disorders will require large-scale, controlled, reproducible culture methods. Bioreactor systems offer the scale-up and monitoring needed, but standard stirred bioreactor cultures do not allow for the real-time regulation of key nutrients in the medium. In this study, β-TC6 insulinoma cells were aggregated and cultured for 3 weeks as a model of manufacturing a mammalian cell product. Cell expansion rates and medium nutrient levels were compared in static, stirred suspension bioreactors (SSB), and continuously fed (CF) SSB. While SSB cultures facilitated increased culture volumes, no increase in cell yields were observed, partly due to limitations in key nutrients, which were consumed by the cultures between feedings, such as glucose. Even when glucose levels were increased to prevent depletion between feedings, dramatic fluctuations in glucose levels were observed. Continuous feeding eliminated fluctuations and improved cell expansion when compared with both static and SSB culture methods. Further improvements in growth rates were observed after adjusting the feed rate based on calculated nutrient depletion, which maintained physiological glucose levels for the duration of the expansion. Adjusting the feed rate in a continuous medium replacement system can maintain the consistent nutrient levels required for the large-scale application of many cell products. Continuously fed bioreactor systems combined with nutrient regulation can be used to improve the yield and reproducibility of mammalian cells for biological products and cellular therapies and will facilitate the translation of cell culture from the research lab to clinical applications.

  11. The Relationship between Vocabulary Learning Strategies and Breadth and Depth of Vocabulary Knowledge

    Science.gov (United States)

    Zhang, Xian; Lu, Xiaofei

    2015-01-01

    This study investigated the relationship between vocabulary learning strategies and vocabulary breadth and depth knowledge. One hundred and fifty first-year university students in China took the Vocabulary Levels Test, a meaning recall task, and the Depth of Vocabulary Knowledge Test. The first two tests were used to elicit two types of vocabulary…

  12. The Relationship between Vocabulary Learning Strategies and Breadth and Depth of Vocabulary Knowledge

    Science.gov (United States)

    Zhang, Xian; Lu, Xiaofei

    2015-01-01

    This study investigated the relationship between vocabulary learning strategies and vocabulary breadth and depth knowledge. One hundred and fifty first-year university students in China took the Vocabulary Levels Test, a meaning recall task, and the Depth of Vocabulary Knowledge Test. The first two tests were used to elicit two types of vocabulary…

  13. Breadth and Depth of Vocabulary Knowledge and Their Effects on L2 Vocabulary Profiles

    Science.gov (United States)

    Bardakçi, Mehmet

    2016-01-01

    Breadth and depth of vocabulary knowledge have been studied from many different perspectives, but the related literature lacks serious studies dealing with their effects on vocabulary profiles of EFL learners. In this paper, with an aim to fill this gap, the relative effects of breadth and depth of vocabulary knowledge on L2 vocabulary profiles…

  14. Extended Statistical Learning as an account for slow vocabulary growth.

    Science.gov (United States)

    Stokes, Stephanie F; Kern, Sophie; Dos Santos, Christophe

    2012-01-01

    Stokes (2010) compared the lexicons of English-speaking late talkers (LT) with those of their typically developing (TD) peers on neighborhood density (ND) and word frequency (WF) characteristics and suggested that LTs employed learning strategies that differed from those of their TD peers. This research sought to explore the cross-linguistic validity of this conclusion. The lexicons (production, not recognition) of 208 French-speaking two-year-old children were coded for ND and WF. Regression revealed that ND and WF together predicted 62% of the variance in vocabulary size, with ND and WF uniquely accounting for 53% and 9% of that variance respectively. Epiphenomenal findings were ruled out by comparison of simulated data sets with the actual data. A generalized Mann-Whitney test showed that children with small vocabularies had significantly higher ND values and significantly lower WF values than children with large vocabularies. An EXTENDED STATISTICAL LEARNING theory is proposed to account for the findings.

  15. Discussion on English Vocabulary and Description

    Institute of Scientific and Technical Information of China (English)

    沈岚; 代显华

    2013-01-01

      Compared with the study of Grammar, syntax, the description on vocabulary is comparatively slower than them. The related theories of vocabulary description have fast developed since the 1980s and 1990s have experienced a growing interest in vocabulary learning and teaching----The vocabulary size, text coverage, word list, meaning of vocabulary in context, and collocation have been discovered and described, which helped new insights in arrange of different research fields have all added to our understanding of vocabulary development. Vocabulary acquisition research, based on vocabulary description, has established itself as a central research focus for language acquisition researchers and contributed to the focus of practical teaching and learning in College English.

  16. The Choice of Effective Vocabulary Learning Strategies

    Institute of Scientific and Technical Information of China (English)

    刘建芳

    2015-01-01

    This paper aims to make a comparison between good and poor language learners in the use of vocabulary learning strategies.It will introduce some helpful vocabulary learning strategies to help those frustrated Chinese college non-English major learners.

  17. Does Studying Vocabulary in Smaller Sets Increase Learning?

    Science.gov (United States)

    Nakata, Tatsuya; Webb, Stuart

    2016-01-01

    The present study examined the effects of part and whole learning on the acquisition of second language (L2, English) vocabulary. In whole learning, the materials to be learned are repeated in one large block, whereas, in part learning, the materials are divided into smaller blocks and repeated. Experiment 1 compared the effects of the following…

  18. Effect of Screen Size on Multimedia Vocabulary Learning

    Science.gov (United States)

    Kim, Daesang; Kim, Dong-Joong

    2012-01-01

    The objective of this study was to investigate the effects of three different screen sizes (small, medium and large) and two types of multimedia instruction (text only and text with pictorial annotation) on vocabulary learning. One hundred thirty-five Korean middle school students learning English as a foreign language were randomly distributed…

  19. Does Studying Vocabulary in Smaller Sets Increase Learning?

    Science.gov (United States)

    Nakata, Tatsuya; Webb, Stuart

    2016-01-01

    The present study examined the effects of part and whole learning on the acquisition of second language (L2, English) vocabulary. In whole learning, the materials to be learned are repeated in one large block, whereas, in part learning, the materials are divided into smaller blocks and repeated. Experiment 1 compared the effects of the following…

  20. Direct synthesis of large-area continuous ReS2 films on a flexible glass at low temperature

    Science.gov (United States)

    Kim, Youngchan; Kang, Byunggil; Choi, Yongsuk; Cho, Jeong Ho; Lee, Changgu

    2017-06-01

    Rhenium disulfide (ReS2) has been attracting attentions due to the direct bandgap regardless of the thickness and anisotropic electrical, mechanical and optical properties deriving from its unique crystal lattice structure. In order to utilize these properties, some synthesis methods of ReS2 have been studied for electronic applications. However, their results are not suitable for practical applications because of non-uniformity, discontinuity and difficulty of large-area continuous film growth. Here, we report the synthesis method of layer-controlled wafer-scale (7  ×  2 cm2) ReS2 films by chemical vapor deposition with high uniformity and continuity. Especially, we demonstrate successfully a direct synthesis of ReS2 on a transparent flexible glass substrate at low synthesis temperature (450 °C) without the aid of a catalyst or a plasma enhanced system. The field effect transistors with as-grown ReS2 films on the flexible glass exhibit typical n-type behavior with low threshold voltage of 0.75 V, high on-off ratio of ~105, low subthreshold swing of 260 mV/decade and mobility of 0.13 cm2 V-1 S-1. The direct synthesis of ReS2 films on flexible glass will provide the platform to realize large area transfer-free fabrication of high quality transparent flexible electronic devices.

  1. Review of L2 Vocabulary Acquisition Studies

    Institute of Scientific and Technical Information of China (English)

    周先军

    2014-01-01

    Vocabulary is important in language and language acquisition, but it did not catch as much attention as it deserved for a long time. In this thesis, I’ll go through changes of vocabulary studied in linguistics and language teaching as well as rise of L2 vocabulary acquisition studies. Several aspects of L2 vocabulary acquisition studies will then be reviewed.Issues that need to be further studied will at last be put forward.

  2. Vocabulary Is a Key to English Learning

    Institute of Scientific and Technical Information of China (English)

    卢翌春

    2008-01-01

    Vocabulary size is an important criterion to measure one's English proficiency. More words mean more freedom in language use. To many English learners, language skill remains difficult due to insufficient vocabulary. Both learners and teachers should be active to find an appropriate way to improve that condition. So it is necessary to know the feature of vocabulary and some effective ways to enlarge vocabulary size.

  3. Considerations on Carrying Out Vocabulary Teaching Efficiently

    Institute of Scientific and Technical Information of China (English)

    吴白音那

    2002-01-01

    This paper analyses current situations and some problems with vocabulary leaning confronted by students (especially Mongolian students) in Inner Mongolian, which should be solved urgently since the requirements of College English Teaching Curriculum are increasing, and it points out the improvement of vocabulary teaching strategies should become college English teachers' main concern. Finally, interesting methods of presenting vocabulary and effective ways of checking students' vocabulary are suggested ...

  4. Review of L2 Vocabulary Acquisition Studies

    Institute of Scientific and Technical Information of China (English)

    周先军

    2014-01-01

    Vocabulary is important in language and language acquisition, but it did not catch as much attention as it deserved for a long time. In this thesis, I’ll go through changes of vocabulary studied in linguistics and language teaching as well as rise of L2 vocabulary acquisition studies. Several aspects of L2 vocabulary acquisition studies will then be reviewed .Issues that need to be further studied will at last be put forward.

  5. English-French bilingual children’s phonological awareness and vocabulary skills

    Directory of Open Access Journals (Sweden)

    PiYu Chiang

    2007-12-01

    Full Text Available Abstract This study examined the relationship between English-speaking children’s vocabulary skills in English and in French and their phonological awareness skills in both languages. Forty-four kindergarten-aged children attending French immersion programs were administered a receptive vocabulary test, an expressive vocabulary test and a phonological awareness test in English and French. Results showed that French phonological awareness was largely explained by English phonological awareness, consistent with previous findings that phonological awareness skills transfer across languages. However, there was a small unique contribution from French expressive vocabulary size to French phonological awareness. The importance of vocabulary skills to the development of phonological awareness is discussed.

  6. Perfecting Language: Experimenting with Vocabulary Learning

    Science.gov (United States)

    Absalom, Matthew

    2015-01-01

    One of the thorniest aspects of teaching languages is developing students' vocabulary, yet it is impossible to be "an accurate and highly communicative language user with a very small vocabulary" (Milton, 2009, p. 3). Nation (2006) indicates that more vocabulary than previously thought is required to function well both at spoken and…

  7. Vocabulary Pruning for Improved Context Recognition

    DEFF Research Database (Denmark)

    Madsen, Rasmus Elsborg; Sigurdsson, Sigurdur; Hansen, Lars Kai

    2004-01-01

    of term relevancy, when pruning the vocabularies. With reduced vocabularies documents are classified using a latent semantic indexing representation and a probabilistic neural network classifier. Reducing the bag-of-words vocabularies with 90%-98%, we find consistent classification improvement using two...

  8. Pruning the vocabulary for better context recognition

    DEFF Research Database (Denmark)

    Madsen, Rasmus Elsborg; Sigurdsson, Sigurdur; Hansen, Lars Kai

    2004-01-01

    of term relevancy, when pruning the vocabularies. With reduced vocabularies, documents are classified using a latent semantic indexing representation and a probabilistic neural network classifier. Reducing the bag-of-words vocabularies with 90%-98%, we find consistent classification improvement using two...

  9. Teachers' Technology Use in Vocabulary Teaching

    Science.gov (United States)

    Kilickaya, Ferit; Krajka, Jaroslaw

    2010-01-01

    It cannot be denied that vocabulary learning is central to learning a language, be it a mother tongue or the second/foreign language. According to Nunan (1991), learning vocabulary in the very early stages is more fundamental than grammar, since without vocabulary one would not be able to use the structures and functions for effective…

  10. Vocabulary Teaching Based on Semantic-Field

    Science.gov (United States)

    Wangru, Cao

    2016-01-01

    Vocabulary is an indispensable part of language and it is of vital importance for second language learners. Wilkins (1972) points out: "without grammar very little can be conveyed, without vocabulary nothing can be conveyed." Vocabulary teaching has experienced several stages characterized by grammatical-translation method, audio-lingual…

  11. Vocabulary Expansion in Modern Standard Chinese.

    Science.gov (United States)

    Edwards, Louise

    1997-01-01

    Examines the discrepancy between spoken and written vocabularies in modern standard Chinese (MSC) textbooks that contributes to slow vocabulary development, and outlines a teaching technique to extend students' vocabulary using the ideographic nature of MSC characters rather than phonetic learning to increase efficient use of vocabulary…

  12. Vocabulary of Toddlers Who Are Late Talkers

    Science.gov (United States)

    MacRoy-Higgins, Michelle; Shafer, Valerie L.; Fahey, Katlin J.; Kaden, Elyssa R.

    2016-01-01

    The purpose of this study was to understand vocabulary characteristics in toddlers who are late talkers (LT) as compared with age-matched (AM) and vocabulary-matched (VM) peers. The semantic categories (e.g., animals, foods, toys) and the percentage of nouns, verbs, and closed-class words in the vocabularies of 36 toddlers (12 LT, 12 AM, 12 VM)…

  13. How to develop vocabulary learning strategies

    Institute of Scientific and Technical Information of China (English)

    董振

    2010-01-01

    @@ Due to limited class time,students will not be able to learn all the vocabulary simply from class teaching.Thus we need to help students develop items vocabulary learning strategies so that they can effectively acquire more vocabulary on their own,especially outside the class.Below are some strategies.

  14. Listening Vocabulary: Embracing Forgotten Aural Features

    Science.gov (United States)

    Siegel, Joseph

    2016-01-01

    This article describes an innovation in the teaching and learning of vocabulary in English as a Foreign Language classes. Whereas vocabulary coverage in classrooms and textbooks traditionally focuses on lists of target words in printed form, this article promotes the notion of "aural vocabulary" as an important part of…

  15. Vocabulary Levels and Size of Malaysian Undergraduates

    Science.gov (United States)

    Harji, Madhubala Bava; Balakrishnan, Kavitha; Bhar, Sareen Kaur; Letchumanan, Krishnaveni

    2015-01-01

    Vocabulary is a fundamental requirement of language acquisition, and its competence enables independent reading and effective language acquisition. Effective language use requires adequate level of vocabulary knowledge; therefore, efforts must be made to identify students' vocabulary base for greater efficiency and competency in the language.…

  16. Academic Listening: A Source of Vocabulary Acquisition?

    Science.gov (United States)

    Vidal, Karina

    2003-01-01

    Presents a study of the acquisition of English-as-a-Foreign-Language vocabulary through academic listening. Explored the effects of EFL proficiency and lecture comprehension on vocabulary acquisition as well as the relationship between vocabulary gain and the following factors: frequency of occurrence, types of word, type of word elaboration, and…

  17. Cultivating Pragmatic Competence in English Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    刘果果

    2007-01-01

    vocabulary is one of the most important elements of the language. It is closely related with context and pragmatic. This paper intends to find out some effective method of vocabulary teaching under the pragmatic principles, exploring how to improve pragmatic competence of students in English vocabulary teaching.

  18. Teacher's Role in English Vocabulary Learning

    Institute of Scientific and Technical Information of China (English)

    赵新颜

    2009-01-01

    Vocabulary is the basis for learning any language.Anyone who wants to learn a language well faces the challenge of enlarging his/her vocabulary effectively.From six aspects,this paper discusses what teachers should do to help their students with vocabulary acquisition.

  19. Vocabulary development in Mandarin-speaking children with cochlear implants and its relationship with speech perception abilities.

    Science.gov (United States)

    Chen, Yuan; Wong, Lena L N; Zhu, Shufeng; Xi, Xin

    2017-01-01

    China has the largest population of children with hearing impairments and cochlear implantation is gaining popularity there. However, the vocabulary development in this population is largely unexplored. This study examined early vocabulary outcomes, factors influencing early vocabulary development and the relationship between speech perception and vocabulary development in Mandarin-speaking children during the first year of cochlear implant use. A battery of vocabulary tests was administered to 80 children before implantation and 3, 6, and 12 months after implantation. Demographic information was obtained to evaluate their relationships with vocabulary outcomes. The Mandarin-speaking children, who received their cochlear implants before 3 years of age, developed vocabulary at a rate faster than that of their same-aged peers with normal hearing. Better pre-implant hearing levels, younger age at implantation, and higher maternal education level contributed to the early vocabulary development. The trajectories of speech perception development highly correlated with those of vocabulary development during 3 to 12 months of CI use. and Implications: These findings imply that the vocabulary development of children implanted before 3 years of age may catch up with that of their hearing peers. Copyright © 2016 Elsevier Ltd. All rights reserved.

  20. Teaching conceptually referenced core vocabulary for initial augmentative and alternative communication.

    Science.gov (United States)

    Snodgrass, Melinda R; Stoner, Julia B; Angell, Maureen E

    2013-12-01

    Individuals with significant intellectual disabilities who use augmentative and alternative communication (AAC) often fail to acquire large vocabularies. To maximize the functionality of a small vocabulary, AAC users' initial vocabulary typically consists of words that can be used frequently across contexts and functions (i.e., core vocabulary). For many AAC users, core vocabulary often references concepts rather than concrete items. For individuals with severe intellectual disabilities, however, initial AAC vocabulary often consists of concretely referenced words instead. There is little evidence that these individuals can learn to use conceptually referenced words in initial AAC. A variation of a single subject multiple baseline design across four stimuli was used to demonstrate that an individual with severe intellectual disabilities could learn to use conceptually referenced words as an initial AAC vocabulary. As a result of the intervention (a modified PECS procedure), a 9-year-old boy with multiple disabilities, including intellectual disability and deaf-blindness, learned to make appropriate use of three conceptually referenced tactile symbols for the concepts of more, done, and new as an initial communication vocabulary.

  1. WORD ASSOCIATIONS IN VOCABULARY LEARNING

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    With the widespread adoption of new college Englishtextbooks,vocabulary learning seems a more important taskthan ever before for college students.This paper is about aresearch on how to help students learn English words moremeaningfully and enlarge their vocabulary more efficiently.This paper first discusses word meaning,concept,andconcept network,then explores the associative network of wordsand their associations,which corresponds to English lexicalrelations.The lexical network can be realized onto a computer tobenefit students in their learning.

  2. Effect of Electromagnetic Ruler Braking (EMBr) on Transient Turbulent Flow in Continuous Slab Casting using Large Eddy Simulations

    Science.gov (United States)

    Chaudhary, R.; Thomas, B. G.; Vanka, S. P.

    2012-06-01

    Static electromagnetic braking (EMBr) fields affect greatly the turbulent flow pattern in steel continuous casting, which leads to potential benefits such as decreasing flow instability, surface defects, and inclusion entrapment if applied correctly. To gain a fundamental understanding of how EMBr affects transient turbulent flow, the current work applies large eddy simulations (LES) to investigate the effect of three EMBr ruler brake configurations on transient turbulent flow through the bifurcated nozzle and mold of a liquid-metal GaInSn model of a typical steel slab-casting process, but with deep nozzle submergence and insulated walls with no solidifying shell. The LES calculations are performed using an in-house graphic-processing-unit-based computational-fluid-dynamics code (LES-CU-FLOW) on a mesh of ~7 million brick cells. The LES model is validated first via ultrasonic velocimetry measurements in this system. It is then applied to quantify the mean and instantaneous flow structures, Reynolds stresses, turbulent kinetic energy and its budgets, and proper orthogonal modes of four cases. Positioning the strongest part of the ruler magnetic field over the nozzle bottom suppresses turbulence in this region, thus reducing nozzle well swirl and its alternation. This process leads to strong and focused jets entering the mold cavity making large-scale and low-frequency (<0.02 Hz) flow variations in the mold with detrimental surface velocity variations. Lowering the ruler below nozzle deflects the jets upward, leading to faster surface velocities than the other cases. The double-ruler and no-EMBr cases have the most stable flow. The magnetic field generates large-scale vortical structures tending toward two-dimensional (2-D) turbulence. To avoid detrimental large-scale, low-frequency flow variations, it is recommended to avoid strong magnetic fields across the nozzle well and port regions.

  3. The effect of large decoherence on mixing time in continuous-time quantum walks on long-range interacting cycles

    Energy Technology Data Exchange (ETDEWEB)

    Salimi, S; Radgohar, R, E-mail: shsalimi@uok.ac.i, E-mail: r.radgohar@uok.ac.i [Faculty of Science, Department of Physics, University of Kurdistan, Pasdaran Ave, Sanandaj (Iran, Islamic Republic of)

    2010-01-28

    In this paper, we consider decoherence in continuous-time quantum walks on long-range interacting cycles (LRICs), which are the extensions of the cycle graphs. For this purpose, we use Gurvitz's model and assume that every node is monitored by the corresponding point-contact induced by the decoherence process. Then, we focus on large rates of decoherence and calculate the probability distribution analytically and obtain the lower and upper bounds of the mixing time. Our results prove that the mixing time is proportional to the rate of decoherence and the inverse of the square of the distance parameter (m). This shows that the mixing time decreases with increasing range of interaction. Also, what we obtain for m = 0 is in agreement with Fedichkin, Solenov and Tamon's results [48] for cycle, and we see that the mixing time of CTQWs on cycle improves with adding interacting edges.

  4. Contrasting contributions of phonological short-term memory and long-term knowledge to vocabulary learning in a foreign language.

    Science.gov (United States)

    Masoura, Elvira V; Gathercole, Susan E

    2005-01-01

    The contributions of phonological short-term memory and existing foreign vocabulary knowledge to the learning of new words in a second language were compared in a sample of 40 Greek children studying English at school. The children's speed of learning new English words in a paired-associate learning task was strongly influenced by their current English vocabulary, but was independent of phonological memory skill, indexed by nonword repetition ability. However, phonological memory performance was closely linked to English vocabulary scores. The findings suggest that in learners with considerable familiarity with a second language, foreign vocabulary acquisition is mediated largely by use of existing knowledge representations.

  5. Continuation and discontinuation of benzodiazepine prescriptions: A cohort study based on a large claims database in Japan.

    Science.gov (United States)

    Takeshima, Nozomi; Ogawa, Yusuke; Hayasaka, Yu; Furukawa, Toshi A

    2016-03-30

    Although benzodiazepines (BZDs) are often prescribed to treat a wide range of psychiatric and neurological conditions, they are also associated with various harms and risks including dependence. However the frequency of its continued use in the real world has not been well studied, especially at longer follow-ups. The aim of this study was to clarify the frequency of long-term BZD use among new BZD users over longer follow-ups and to identify its predictors. We conducted a cohort study to examine how frequently new BZD users became chronic users, based on a large claims database in Japan from January 2005 to June 2014. We used Cox proportional hazards models to identify potential predictors. A total 84,412 patients with new BZD prescriptions were included in our cohort. Among them, 35.8% continued to use BZD for three months, 15.2% for one year and 4.9% for eight years without ever attaining three months of no BZD prescription. The confirmed predictors for long-term BZD use were older age, psychiatrist-prescriber, regular use, high dose of BZD, and concomitant prescription of psychotropic drugs. When we consider BZD use, we have to keep in mind these figures and avoid these predictors as much as possible.

  6. A tool for sharing annotated research data: the "Category 0" UMLS (Unified Medical Language System vocabularies

    Directory of Open Access Journals (Sweden)

    Berman Jules J

    2003-06-01

    Full Text Available Abstract Background Large biomedical data sets have become increasingly important resources for medical researchers. Modern biomedical data sets are annotated with standard terms to describe the data and to support data linking between databases. The largest curated listing of biomedical terms is the the National Library of Medicine's Unified Medical Language System (UMLS. The UMLS contains more than 2 million biomedical terms collected from nearly 100 medical vocabularies. Many of the vocabularies contained in the UMLS carry restrictions on their use, making it impossible to share or distribute UMLS-annotated research data. However, a subset of the UMLS vocabularies, designated Category 0 by UMLS, can be used to annotate and share data sets without violating the UMLS License Agreement. Methods The UMLS Category 0 vocabularies can be extracted from the parent UMLS metathesaurus using a Perl script supplied with this article. There are 43 Category 0 vocabularies that can be used freely for research purposes without violating the UMLS License Agreement. Among the Category 0 vocabularies are: MESH (Medical Subject Headings, NCBI (National Center for Bioinformatics Taxonomy and ICD-9-CM (International Classification of Diseases-9-Clinical Modifiers. Results The extraction file containing all Category 0 terms and concepts is 72,581,138 bytes in length and contains 1,029,161 terms. The UMLS Metathesaurus MRCON file (January, 2003 is 151,048,493 bytes in length and contains 2,146,899 terms. Therefore the Category 0 vocabularies, in aggregate, are about half the size of the UMLS metathesaurus. A large publicly available listing of 567,921 different medical phrases were automatically coded using the full UMLS metatathesaurus and the Category 0 vocabularies. There were 545,321 phrases with one or more matches against UMLS terms while 468,785 phrases had one or more matches against the Category 0 terms. This indicates that when the two vocabularies are

  7. Suri-English basic vocabulary

    NARCIS (Netherlands)

    Abbink, J.

    1993-01-01

    The Suri, also known as Surma, are agropastoralists living in the semiarid lowland area of the Kafa Administrative Region of Ethiopia. The Suri language belongs to the South-East Surmic (SES) language group within the Eastern Sudanic family of Nilo-Saharan. The Suri-English vocabulary presented here

  8. BUILDING VOCABULARY USING POP SONGS

    Directory of Open Access Journals (Sweden)

    author Rahmatika Kayyis

    2015-01-01

    Full Text Available The objective of the study is to find out whether there is a significant difference between the vocabulary mastery of first semester students taughtusing English pop songs and that taught without using English pop songs as a medium. This study involved 64 students of first semesterof STKIP Muhammadiyah Pringsewu Lampung in the academic year of 2012/2013 as the objects of the study. The result of the study shows there is a significant difference in the student’s vocabulary mastery between the experimental group who are taughtusing English pop songs and that taught without using English pop songs as a medium.The mean of post test score of the experimental group is 16.93 while the mean score of the control group is 14.54. The result of t-test shows that t-observed value which is higher than the t-value of the table (2.572>1.99, with a probability value of 0.008 which is lower than the significance level (0.008 < 0.05. In conclusion, the use of English pop songscould improve the students’ vocabulary mastery.Keywords: Vocabulary, English Pop Songs

  9. Interactive Approaches for Vocabulary Teaching

    Science.gov (United States)

    Lin, Grace Hui Chin

    2009-01-01

    Vocabulary acquisition research has been paid attention these years (e.g. Beck, McKeown & McCaslin, 1983; Harley, 1996; Huckin, Haynes, & Coady, 1993; Zahar, Cobb & Spada, 2001). A serious methodologies had been reported, including applying learner dictionaries (Nesi, 1999; Tribble, 2003), using forms of visual glossing (Al-Seghayer,…

  10. Transformation of Words into Vocabulary

    Science.gov (United States)

    Parveen, H. Naseema; Rajan, Premalatha

    2012-01-01

    This article explores the significance of a word and the changes it undergoes in its form when it is placed in the hierarchy of grammatical constituents thereby forming a new word termed as vocabulary. This change or transformation is the result of affixations. Transformation becomes essential as the words learnt cannot be used as such in a…

  11. Is There an "Academic Vocabulary"?

    Science.gov (United States)

    Hyland, Ken; Tse, Polly

    2007-01-01

    This article considers the notion of "academic vocabulary": the assumption that students of English for academic purposes (EAP) should study a core of high frequency words because they are common in an English academic register. We examine the value of the term by using Cox-head's (2000) Academic Word List (AWL) to explore the distribution of its…

  12. MANUFACTURING AND CONTINUOUS IMPROVEMENT PERFORMANCE LEVEL IN PLANTS OF MEXICO; A COMPARATIVE ANALYSIS AMONG LARGE AND MEDIUM SIZE PLANTS

    Directory of Open Access Journals (Sweden)

    Carlos Monge

    2015-12-01

    Full Text Available A random and statistically significant sample of 40 medium (12 and large (28 manufacturing plants of Apodaca, Mexico were surveyed using a structured and validated questionnaire to investigate the level of implementation of lean manufacturing, sustainable manufacturing, continuous improvement and operational efficiency and environmental responsibility in them, it is important to mention it was found that performance in the mentioned philosophies, on the two categories of plants is low, however large plants show a better performance than medium plants. In both cases, it is worrying that in the highly industrialized municipality of Apodaca,  Mexico are not decisively adopting the philosophies mentioned, as this compromises in a global world, in the medium and long term the viability of the plants, particularly the medium size plants. Finally this article shows the results of the answers to the items of questionnaire for the plants managers, and this can be useful to the management of the plants to identify and to define specific improvement actions towards priority areas.

  13. Continuous, Large-Scale Processing of Seismic Archives for High-Resolution Monitoring of Seismic Activity and Seismogenic Properties

    Science.gov (United States)

    Waldhauser, F.; Schaff, D. P.

    2012-12-01

    Archives of digital seismic data recorded by seismometer networks around the world have grown tremendously over the last several decades helped by the deployment of seismic stations and their continued operation within the framework of monitoring earthquake activity and verification of the Nuclear Test-Ban Treaty. We show results from our continuing effort in developing efficient waveform cross-correlation and double-difference analysis methods for the large-scale processing of regional and global seismic archives to improve existing earthquake parameter estimates, detect seismic events with magnitudes below current detection thresholds, and improve real-time monitoring procedures. We demonstrate the performance of these algorithms as applied to the 28-year long seismic archive of the Northern California Seismic Network. The tools enable the computation of periodic updates of a high-resolution earthquake catalog of currently over 500,000 earthquakes using simultaneous double-difference inversions, achieving up to three orders of magnitude resolution improvement over existing hypocenter locations. This catalog, together with associated metadata, form the underlying relational database for a real-time double-difference scheme, DDRT, which rapidly computes high-precision correlation times and hypocenter locations of new events with respect to the background archive (http://ddrt.ldeo.columbia.edu). The DDRT system facilitates near-real-time seismicity analysis, including the ability to search at an unprecedented resolution for spatio-temporal changes in seismogenic properties. In areas with continuously recording stations, we show that a detector built around a scaled cross-correlation function can lower the detection threshold by one magnitude unit compared to the STA/LTA based detector employed at the network. This leads to increased event density, which in turn pushes the resolution capability of our location algorithms. On a global scale, we are currently building

  14. An English vocabulary learning support system for the learner's sustainable motivation.

    Science.gov (United States)

    Hasegawa, Tatsuhito; Koshino, Makoto; Ban, Hiromi

    2015-01-01

    In English vocabulary learning, continuation is an important factor; however, many learners are not good at continuing learning because they tend to prefer amusement or rest. Our proposed system is targeting learners who are eager to learn but are not able to continue learning for various reasons. We especially focused on English vocabulary learning, and described an approach for learners who have difficulty with continuing learning. Our developed application aggressively supports the learners' sustainable motivation by gamification techniques and an efficient difficulty setting method.

  15. New concepts for building vocabulary for cell image ontologies

    Directory of Open Access Journals (Sweden)

    Plant Anne L

    2011-12-01

    Full Text Available Abstract Background There are significant challenges associated with the building of ontologies for cell biology experiments including the large numbers of terms and their synonyms. These challenges make it difficult to simultaneously query data from multiple experiments or ontologies. If vocabulary terms were consistently used and reused across and within ontologies, queries would be possible through shared terms. One approach to achieving this is to strictly control the terms used in ontologies in the form of a pre-defined schema, but this approach limits the individual researcher's ability to create new terms when needed to describe new experiments. Results Here, we propose the use of a limited number of highly reusable common root terms, and rules for an experimentalist to locally expand terms by adding more specific terms under more general root terms to form specific new vocabulary hierarchies that can be used to build ontologies. We illustrate the application of the method to build vocabularies and a prototype database for cell images that uses a visual data-tree of terms to facilitate sophisticated queries based on a experimental parameters. We demonstrate how the terminology might be extended by adding new vocabulary terms into the hierarchy of terms in an evolving process. In this approach, image data and metadata are handled separately, so we also describe a robust file-naming scheme to unambiguously identify image and other files associated with each metadata value. The prototype database http://sbd.nist.gov/ consists of more than 2000 images of cells and benchmark materials, and 163 metadata terms that describe experimental details, including many details about cell culture and handling. Image files of interest can be retrieved, and their data can be compared, by choosing one or more relevant metadata values as search terms. Metadata values for any dataset can be compared with corresponding values of another dataset through logical

  16. Investigating the Role of Pop Songs on Vocabulary Recall, Attitude and Retention of Iranian EFL Learners: The Case of Gender

    Science.gov (United States)

    Shakerian, Pouya; Rezaei, Omid; Murnani, Zeinab Toghyani; Moeinmanesh, Hamid

    2016-01-01

    Pop songs are, in fact, an ideal source for incidental vocabulary learning because teenagers often spend large amounts of their free time listening to music and in particular to pop songs. Employing an experimental approach, this study attempted to investigate the role of pop songs on vocabulary recall, attitude and retention of Iranian advanced…

  17. The Study of the Effects of Reading Factors on Incidental Vocabulary Acquisition

    Institute of Scientific and Technical Information of China (English)

    李海燕

    2007-01-01

    To figure out the most robust factors influencing incidental vocabulary acquisition (IVA) performance, in this paper three reader variables are identified based on literature review, i.e., reading proficiency, sight vocabulary and content schema; and an investigation is conducted to search for their different impacts.After the analysis of the collected data by SPSS 10.0, the results suggested that individual difference in IVA is largely caused by the difference in reading ability and previous vocabulary knowledge.Therefore, to foster learners' IVA ability, EFL teachers need to help students develop independent reading strategies for IVA, provide material suitable to students' level and enrich their background knowledge.

  18. On the Application of Games in Junior English Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    肖芳萍

    2015-01-01

    <正>Vocabulary,pronunciation and grammar are the three essential components of language,vocabulary being the building material of languages.The famous linguist Wilkins said,"Without grammar,very little can be conveyed;without vocabulary,nothing can be conveyed."The importance of vocabulary is strongly manifested.Therefore,vocabulary teaching has been the focus of

  19. Large Eddy Simulation of Transient Flow and Inclusions Transport in Continuous Casting Mold under Different Electromagnetic Brakes

    Science.gov (United States)

    Liu, Zhongqiu; Li, Linmin; Li, Baokuan

    2016-08-01

    A mathematical model has been developed to analyze transient fluid flow and inclusions transport in a slab continuous casting mold, considering the effects of electromagnetic brake (EMBr) arrangement and magnetic field strength. Transient flow of molten steel in the mold is calculated by using the large eddy simulation. The electromagnetic force is incorporated into the Navier-Stokes equation. The transport of inclusion inside the mold is calculated using the Lagrangian approach based on the transient flow field. The predicted results of this model are compared with the measurements of the ultrasonic testing of the rolled steel plates and the water model experiments. The transient asymmetrical flow pattern and inclusion transport inside the mold exhibits satisfactory agreement with the corresponding measurements. With electromagnetic brake effect, the velocities around the braking region are significantly suppressed, and the recirculating flow in the lower part drops and tends to develop a plug-like flow. The EMBr arrangement has an insignificant effect on the overall removal fraction of inclusions, especially for larger inclusions. The inclusion removal rate for the flow-control mold (FCM arrangement) reduces instead compared with no EMBr, especially for smaller inclusions.

  20. Mesoporous fluorocarbon-modified silica aerogel membranes enabling long-term continuous CO2 capture with large absorption flux enhancements.

    Science.gov (United States)

    Lin, Yi-Feng; Chen, Chien-Hua; Tung, Kuo-Lun; Wei, Te-Yu; Lu, Shih-Yuan; Chang, Kai-Shiun

    2013-03-01

    The use of a membrane contactor combined with a hydrophobic porous membrane and an amine absorbent has attracted considerable attention for the capture of CO2 because of its extensive use, low operational costs, and low energy consumption. The hydrophobic porous membrane interface prevents the passage of the amine absorbent but allows the penetration of CO2 molecules that are captured by the amine absorbent. Herein, highly porous SiO2 aerogels modified with hydrophobic fluorocarbon functional groups (CF3 ) were successfully coated onto a macroporous Al2 O3 membrane; their performance in a membrane contactor for CO2 absorption is discussed. The SiO2 aerogel membrane modified with CF3 functional groups exhibits the highest CO2 absorption flux and can be continuously operated for CO2 absorption for extended periods of time. This study suggests that a SiO2 aerogel membrane modified with CF3 functional groups could potentially be used in a membrane contactor for CO2 absorption. Also, the resulting hydrophobic SiO2 aerogel membrane contactor is a promising technology for large-scale CO2 absorption during the post-combustion process in power plants.

  1. Synthesis and characterization of large-area and continuous MoS2 atomic layers by RF magnetron sputtering.

    Science.gov (United States)

    Hussain, Sajjad; Shehzad, Muhammad Arslan; Vikraman, Dhanasekaran; Khan, Muhammad Farooq; Singh, Jai; Choi, Dong-Chul; Seo, Yongho; Eom, Jonghwa; Lee, Wan-Gyu; Jung, Jongwan

    2016-02-21

    In this article, we report layer-controlled, continuous and large-area molydenum sulfide (MoS2) growth onto a SiO2/Si substrate by RF sputtering combined with sulfurization. A two-step process was employed to synthesize MoS2 films. In the first step, an atomically thin MoO3 film was deposited by RF magnetron sputtering at 300 °C. Subsequently, the as-sputtered MoO3 film was further subjected to post-annealing and sulfurization processes at 650 °C for 1 hour. It was observed that the number of layers of MoS2 can be controlled by adjusting the sputtering time. The fabricated MoS2 transistors exhibited high mobility values of ∼21 cm(2) V(-1) s(-1) (bilayer) and ∼25 cm(2) V(-1) s(-1) (trilayer), on/off ratios in the range of ∼10(7) (bilayer) and 10(4)-10(5) (trilayer), respectively. We believe that our proposed paradigm can start a new method for the growth of MoS2 in future electronics and optoelectronics applications.

  2. Continuous flow through a microwave oven for the large-scale production of biodiesel from waste cooking oil.

    Science.gov (United States)

    Tangy, Alex; Pulidindi, Indra Neel; Perkas, Nina; Gedanken, Aharon

    2017-01-01

    This report presents a method for producing large quantities of biodiesel from waste cooking oil (WCO). Preliminary studies on optimization of the WCO transesterification process in a continuous-flow microwave reactor are carried out using commercial SrO as a catalyst. The SrO catalyst can be separated and reused for five reaction cycles without loss in activity. Challenges like mass flow and pressure drop constraints need to be surmounted. SrO nanoparticles deposited on millimeter-sized (3-6mm) silica beads (41wt% SrO/SiO2) are prepared and evaluated as a substitute for the SrO catalyst. A WCO conversion value to biodiesel as high as 99.2wt% was achieved with the reactor packed with 15g of 41wt% SrO/SiO2 catalyst in 8.2min with 820mL of feed. Excellent performance of the fixed-bed catalyst without loss in activity for a lifetime of 24.6min converting a feed of 2.46L to FAME was observed.

  3. Polyvinylidene fluoride/siloxane nanofibrous membranes for long-term continuous CO2 -capture with large absorption-flux enhancement.

    Science.gov (United States)

    Lin, Yi-Feng; Wang, Chi-Sen; Ko, Chia-Chieh; Chen, Chien-Hua; Chang, Kai-Shiun; Tung, Kuo-Lun; Lee, Kueir-Rarn

    2014-02-01

    In a CO2 membrane contactor system, CO2 passes through a hydrophobic porous membrane in the gas phase to contact the amine absorbent in the liquid phase. Consequently, additional CO2 gas is absorbed by amine absorbents. This study examines highly porous polyvinylidene fluoride (PVDF)/siloxane nanofibrous layers that are modified with hydrophobic fluoroalkylsilane (FAS) functional groups and successfully coated onto a macroporous Al2 O3 membrane. The performance of these materials in a membrane contactor system for CO2 absorption is also investigated. Compared with pristine PVDF nanofibrous membranes, the PVDF/siloxane nanofibrous membranes exhibit greater solvent resistance and mechanical strength, making them more suitable for use in CO2 capture by the membrane contactor. The PVDF/siloxane nanofibrous layer in highly porous FAS-modified membranes can prevent the wetting of the membrane by the amine absorbent; this extends the periods of continuous CO2 absorption and results in a high CO2 absorption flux with a minimum of 500 % enhancement over that of the uncoated membranes. This study suggests the potential use of an FAS-modified PVDF/siloxane nanofibrous membrane in a membrane contactor system for CO2 absorption. The resulting hydrophobic membrane contactor also demonstrates the potential for large-scale CO2 absorption during post-combustion processes in power plants.

  4. Transurethral dividing vaporesection for the treatment of large volume benign prostatic hyperplasia using 2 micron continuous wave laser

    Institute of Scientific and Technical Information of China (English)

    SUN Dong-chong; YANG Yong; WEI Zhi-tao; HONG Bao-fa; ZHANG Xu

    2010-01-01

    Background The safety and efficiency of transurethral laser resection of the prostate to treat benign prostatic hyperplasia have been verified. However, this method does still not manage large volume prostates efficiently. To tackle this problem, we have designed a method of "transurethral dividing vaporesection of prostate" using a 2 micron continuous wave laser. The aim of this study was to evaluate the safety and efficiency of this method in the management of large prostates (>80 ml).Methods In this study, 45 cases of benign prostatic hyperplasia with a median prostatic volume of (123.7±26.7) ml (range, 80.2-159.8 ml) were treated by the same surgeon under epidural anesthesia. During the surgery, superapubic catheters were needed, and saline solution was used for irrigation. First, the prostate was divided longitudinally into several parts from the bladder neck to the prostatic apex, and then gradually incised transversely chip by chip. Intraoperative blood transfusion rate, postoperative complications, maximum urinary flow rate, International Prostate Symptom Score and quality of life scores were recorded for statistical analysis using SPSS 16.0 software.Results Intraoperatively, no transurethral resection syndrome was observed, and no blood transfusions were needed.The resected prostatic chips were easily flushed out of the bladder through the resectoscope sheath without the use of a morcellator. Median vaporesection time was (95.0±13.2) minutes (range, 75-120 minutes), and the median retrieved and removed prostatic tissue were (25.2±5.1) g (range, 15.5-34.7 g) and (75.4±16.4) g (range, 43.8-106.1 g), respectively. Median catheter time and hospital stay were (3.3±0.9) days (range, 3-5 days) and (4.8±1.8) days (range, 3-9 days), respectively. After a follow-up of 6 to 12 months, two patients had stress urinary incontinence and three had anterior urethral strictures. Satisfactory improvement was seen in maximum urinary flow rate, International Prostate

  5. Vocabulary, Grammar, Sex, and Aging.

    Science.gov (United States)

    Moscoso Del Prado Martín, Fermín

    2017-05-01

    Understanding the changes in our language abilities along the lifespan is a crucial step for understanding the aging process both in normal and in abnormal circumstances. Besides controlled experimental tasks, it is equally crucial to investigate language in unconstrained conversation. I present an information-theoretical analysis of a corpus of dyadic conversations investigating how the richness of the vocabulary, the word-internal structure (inflectional morphology), and the syntax of the utterances evolves as a function of the speaker's age and sex. Although vocabulary diversity increases throughout the lifetime, grammatical diversities follow a different pattern, which also differs between women and men. Women use increasingly diverse syntactic structures at least up to their late fifties, and they do not deteriorate in terms of fluency through their lifespan. However, from age 45 onward, men exhibit a decrease in the diversity of the syntactic structures they use, coupled with an increased number of speech disfluencies. Copyright © 2016 Cognitive Science Society, Inc.

  6. The Effectiveness of a programme-based Vocabulary Learning Strategies for Developing English Vocabulary for EFL Female Students at Taif University

    Directory of Open Access Journals (Sweden)

    Nasrah Mahmoud Ismaiel

    2017-06-01

    Full Text Available The study of vocabulary can be considered a chief issue which the second language students encounter within the learning of another language especially, for non-English major students. This study aims at assessing the influence of a suggested program for enhancing EFL students` vocabulary and vocabulary learning strategies use. The sample of this study consists of (123 females, it is parted into two sections; the experimental group consists of 55 female students and the control group consists of 68 female students. During the course of the study, learners were randomly chosen and randomly were divided into the experimental and control groups. The aim of the study is twofold: (a to assess if there exist notable discrepancies between these two groups on the English Language Vocabulary post-test and vocabulary language learning strategies. The study also aims to analyze if there exist important discrepancies in the mean grades of pre and post-test of the English Language Vocabulary test and vocabulary language learning strategies. The research applied will continue for 12 weeks throughout the second semester which includes the proposed program. Students` vocabulary learning strategies were measured by Schmitt’s (1997 questionnaire. This questionnaire contains 58 items covering five main strategies that are determination plans, social plans, memory tactics, cognitive plans and meta-cognitive programs. While the Students` English Language Vocabulary size was measured by English Language vocabulary test that was designed by the researchers. The research accomplished lasted for three months that encompasses the suggested plan. The gathered data demonstrated that there existed statistically important discrepancies between the experimental group and the control group on the post-test, in which the experimental one was more bolded. It also uncovred that there existed statistically important discrepancies among the pre-test and post-test outcomes for the

  7. Suri-English basic vocabulary

    OpenAIRE

    Abbink, J.

    1993-01-01

    The Suri, also known as Surma, are agropastoralists living in the semiarid lowland area of the Kafa Administrative Region of Ethiopia. The Suri language belongs to the South-East Surmic (SES) language group within the Eastern Sudanic family of Nilo-Saharan. The Suri-English vocabulary presented here was compiled during research carried out in southwestern Ethiopia, particularly in the village of Makara, between December 1991 and June 1992, and in October 1992. It incorporates two unpublished ...

  8. Desirable difficulties in vocabulary learning

    OpenAIRE

    Bjork, RA; Kroll, JF

    2015-01-01

    © 2015 by the Board of Trustees of the University of Illinois. In this article we discuss the role of desirable difficulties in vocabulary learning from two perspectives, one having to do with identifying conditions of learning that impose initial challenges to the learner but then benefit later retention and transfer, and the other having to do with the role of certain difficulties that are intrinsic to language processes, are engaged during word learning, and reflect how language is underst...

  9. The Sources of the English Vocabulary

    Institute of Scientific and Technical Information of China (English)

    Wang Shujun

    2015-01-01

    Lexicology is a branch of linguistics concerned with the study of the vocabulary of a given language. This paper begins with the question: What are the two approaches to the study of English lexicology? Then talk about the position and character of the English language in the Indo-European family. After this,the paper would on the way to explain the sources of the English vocabulary and different characters of different periods of English vocabulary.

  10. Development of an integrated energy vocabulary

    Energy Technology Data Exchange (ETDEWEB)

    Niehoff, R.T.

    1976-02-01

    Vocabularies from 10 information systems were employed in this attempt to establish an integrated energy vocabulary. A broad definition of energy was formulated and used as a selection criterion. The resulting product, to be printed under separate cover, contains 30,000 terms and 55,000 cross references. It is felt that the integrated vocabulary, when printed, will aid both energy researchers and information scientists using both manual and on-line systems.

  11. The Influence of Contexts on Vocabulary Testing

    Institute of Scientific and Technical Information of China (English)

    高春梅

    2014-01-01

    In vocabulary testing, whether to adopt context is a heat-debated topic. In the article, an experiment is designed to in⁃vestigate what is the effect of zero context and sentence context on the vocabulary testing? And how do the different kinds of context in vocabulary affect the subjects’performance? The experimental result demonstrates that sentence do play an important role in helping text-takers to figure out the correct meaning or target words.

  12. Advanced Teaching Strategies of College English Vocabulary

    Institute of Scientific and Technical Information of China (English)

    谭萍

    2016-01-01

    Vocabulary teaching is an important part in English teaching, which purpose is to foster students to use learned words to conduct language communication, increasing the capability of language using in daily life. This paper analyzes the present condition and exposes the problems existing in English vocabulary teaching and learning, then, puts forward some scientific, effective strategies for the education of English vocabulary. I hope these teaching strategies can help teachers improve their teaching methods and help English learners acquire knowledge easily and efficiently.

  13. The Dimensional Approach to Vocabulary Testing: What Can We ...

    African Journals Online (AJOL)

    Vocabulary constitutes an important component of language and its study has ... what testing under this approach has contributed to the teaching of vocabulary. ... of vocabulary size has led to standardisation of methods, as well as insight into ...

  14. A Longitudinal Study of Receptive Vocabulary Breadth Knowledge Growth and Vocabulary Fluency Development

    Science.gov (United States)

    Zhang, Xian; Lu, Xiaofei

    2014-01-01

    This article reports results of a longitudinal study of vocabulary breadth knowledge growth, vocabulary fluency development, and the relationship between the two. We administered two versions of the Vocabulary Levels Test (VLT; Nation 1983; Nation 1990; Schmitt et al. 2001) to 300 students at a Chinese university at three different time points…

  15. A Corpus Analysis of Vocabulary Coverage and Vocabulary Learning Opportunities within a Children's Story Series

    Science.gov (United States)

    Sun, Yu-Chih

    2016-01-01

    Extensive reading for second language learners have been widely documented over the past few decades. However, few studies, if any, have used a corpus analysis approach to analyze the vocabulary coverage within a single-author story series, its repetition of vocabulary, and the incidental and intentional vocabulary learning opportunities therein.…

  16. A Longitudinal Study of Receptive Vocabulary Breadth Knowledge Growth and Vocabulary Fluency Development

    Science.gov (United States)

    Zhang, Xian; Lu, Xiaofei

    2014-01-01

    This article reports results of a longitudinal study of vocabulary breadth knowledge growth, vocabulary fluency development, and the relationship between the two. We administered two versions of the Vocabulary Levels Test (VLT; Nation 1983; Nation 1990; Schmitt et al. 2001) to 300 students at a Chinese university at three different time points…

  17. Assessing the Relationship between Vocabulary Learning Strategy Use and Vocabulary Knowledge

    Science.gov (United States)

    Teng, Feng

    2015-01-01

    This study is an attempt to explore the correlation between direct and indirect vocabulary learning strategies along with the depth and breadth of vocabulary knowledge. To this end, a sample of 145 low proficiency students who learn English as a Foreign Language (EFL) completed a questionnaire concerning vocabulary learning strategy use.…

  18. Vocabulary services to support scientific data interoperability

    Science.gov (United States)

    Cox, Simon; Mills, Katie; Tan, Florence

    2013-04-01

    Shared vocabularies are a core element in interoperable systems. Vocabularies need to be available at run-time, and where the vocabularies are shared by a distributed community this implies the use of web technology to provide vocabulary services. Given the ubiquity of vocabularies or classifiers in systems, vocabulary services are effectively the base of the interoperability stack. In contemporary knowledge organization systems, a vocabulary item is considered a concept, with the "terms" denoting it appearing as labels. The Simple Knowledge Organization System (SKOS) formalizes this as an RDF Schema (RDFS) application, with a bridge to formal logic in Web Ontology Language (OWL). For maximum utility, a vocabulary should be made available through the following interfaces: * the vocabulary as a whole - at an ontology URI corresponding to a vocabulary document * each item in the vocabulary - at the item URI * summaries, subsets, and resources derived by transformation * through the standard RDF web API - i.e. a SPARQL endpoint * through a query form for human users. However, the vocabulary data model may be leveraged directly in a standard vocabulary API that uses the semantics provided by SKOS. SISSvoc3 [1] accomplishes this as a standard set of URI templates for a vocabulary. Any URI comforming to the template selects a vocabulary subset based on the SKOS properties, including labels (skos:prefLabel, skos:altLabel, rdfs:label) and a subset of the semantic relations (skos:broader, skos:narrower, etc). SISSvoc3 thus provides a RESTFul SKOS API to query a vocabulary, but hiding the complexity of SPARQL. It has been implemented using the Linked Data API (LDA) [2], which connects to a SPARQL endpoint. By using LDA, we also get content-negotiation, alternative views, paging, metadata and other functionality provided in a standard way. A number of vocabularies have been formalized in SKOS and deployed by CSIRO, the Australian Bureau of Meteorology (BOM) and their

  19. What Comes First, the OWL or the Bean? Creating Reusable Scientific Software with OWL/RDF Vocabularies.

    Energy Technology Data Exchange (ETDEWEB)

    Stephan, Eric G.; Elsethagen, Todd O.; Kleese van Dam, Kerstin; Riihimaki, Laura D.

    2013-09-30

    In the spring of 2013 the U.S. White House by executive order mandated: “Government information shall be managed as an asset throughout its life cycle to promote interoperability and openness, and, wherever possible and legally permissible, to ensure that data are released to the public in ways that make the data easy to find, accessible, and usable.” Key for the reusability of any scientific data is hereby the availability of metadata describing the published data in a vocabulary that is familiar to its potential users. The objective of this paper is to help scientific application developers who want to adopt the continuous stream of new community vocabularies to help make their data sharable, self-describable, and easily understood. To achieve this we suggest semantic vocabulary and application integration best practices and discuss the tradeoffs of encoding vocabularies through code versus deriving code from vocabularies.

  20. Adaptive Compensation Algorithm in Open Vocabulary Mandarin Speaker-Independent Speech Recognition

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    In speech recognition systems, the physiological characteristics of the speech production model cause the voiced sections of the speech signal to have an attenuation of approximately 20 dB per decade. Many speech recognition algorithms have been developed to solve this problem by filtering the input signal with a single-zero high pass filter. Unfortunately, this technique increases the noise energy at high frequencies above 4 kHz, which in some cases degrades the recognition accuracy. This paper solves the problem using a pre-emphasis filter in the front end of the recognizer. The aim is to develop a modified parameterization approach taking into account the whole energy zone in the spectrum to improve the performance of the existing baseline recognition system in the acoustic phase. The results show that a large vocabulary speaker-independent continuous speech recognition system using this approach has a greatly improved recognition rate.

  1. The Impact of Gloss Types on Reading Comprehension, Vocabulary Gain and Vocabulary Retention: A Comparative Study

    Directory of Open Access Journals (Sweden)

    Atefeh Elekaei

    2015-09-01

    Full Text Available The significance and impact of vocabulary learning in reading comprehension and L2 language learning are apparent to teachers, researchers and language learners. Moreover, glosses are found as one of the most effective strategies regarding vocabulary retention. Therefore, the present study attempted to investigate the effect of different types of glosses on reading comprehension, vocabulary gain and vocabulary retention. To this end, 140 Iranian EFL learners learning English were selected and were divided into four groups (footnote gloss group, interlinear gloss group, marginal gloss group, and glossary group. They were required to read a text and answer four reading comprehension questions. In addition, one immediate vocabulary post-test and one delayed vocabulary post-test were taken in order to investigate learners' vocabulary gain and vocabulary retention. In order to analyze the data, one one-way ANOVA and one MANOVA were run. The results of one-way ANOVA revealed that participants who received interlinear glosses significantly outperformed the other groups regarding comprehending the text. Moreover, the immediate vocabulary post-test was conducted immediately after reading test and the delayed post-test was administered after four weeks. The results of MANOVA indicated that the group which received interlinear glosses outperformed the other groups in both vocabulary gain and vocabulary retention. The present study has implications for teachers and learners. Teachers can find better methods to teach new reading passages as well as vocabulary items. Also, glosses help learners to have a better comprehension of difficult passages and they facilitate learning. Moreover, learners can enhance their vocabulary knowledge with the help of glosses. Keywords: footnote gloss, interlinear gloss, marginal gloss, glossary, Iranian EFL learners, reading comprehension, vocabulary gain, vocabulary retention

  2. Vocabulary Attrition among Adult English as a Foreign Language Persian Learners

    Science.gov (United States)

    Asgari, Azadeh; Bin Mustapha, Ghazali

    2010-01-01

    This study aims to investigate the attrition rate of EFL concrete and abstract vocabulary among continuing and non-continuing Iranian female and male English language learners across different proficiency levels. They are students of a University and majored in different fields (between 20 and 25 years old). There was no treatment in this study…

  3. WORD ORIGIN HELPS EXPAND LEARNERS’ VOCABULARY A VOCABULARY TEACHING APPROACH

    Directory of Open Access Journals (Sweden)

    Li Jing

    2012-12-01

    Full Text Available Word origin (motivation deals with the connection between name and sense, explaining how a word originated. With the knowledge of how words are originated, learners can grasp a word easier and thus expand their vocabulary more quickly. The introduction to word origin (motivation by teachers can also help the learners gain interest in the process of learning and learn more about the cultural and historical background of the English-speaking countries. This paper tries to clarify this method of teaching from four aspects: onomatopoeia, word formation, cultural and historical background and cognitive linguistics.

  4. Receptive vocabulary knowledge tests: Their potential importance for planning a well-balanced vocabulary component of a language program

    OpenAIRE

    Wakeling, Elliott

    2015-01-01

    iii Abstract Nation and Webb (2011) state ‘Testing is one of the major jobs of the vocabulary teacher, because without good information about our learners’ vocabulary knowledge, we cannot do the most important job of planning a well-balanced program’ (p. 219). This paper evaluated different receptive vocabulary knowledge tests and assessed their potential to help a teacher plan a well-balanced vocabulary program. The Vocabulary Levels Test (VLT) was selected to assess the vocabulary kno...

  5. A harmonized vocabulary for soil observed properties

    Science.gov (United States)

    Simons, Bruce; Wilson, Peter; Cox, Simon; Vleeshouer, Jamie

    2014-05-01

    Interoperability of soil data depends on agreements concerning models, schemas and vocabularies. However, observed property terms are often defined during different activities and projects in isolation of one another, resulting in data that has the same scope being represented with different terms, using different formats and formalisms, and published in various access methods. Significantly, many soil property vocabularies conflate multiple concepts in a single term, e.g. quantity kind, units of measure, substance being observed, and procedure. Effectively, this bundles separate information elements into a single slot. We have developed a vocabulary for observed soil properties by adopting and extending a previously defined water quality vocabulary. The observed property model separates the information elements, based on the Open Geospatial Consortium (OGC) Observations & Measurements model and extending the NASA/TopQuadrant 'Quantities, Units, Dimensions and Types' (QUDT) ontology. The imported water quality vocabulary is formalized using the Web Ontology Language (OWL). Key elements are defined as sub-classes or sub-properties of standard Simple Knowledge Organization System (SKOS) elements, allowing use of standard vocabulary interfaces. For the soil observed property vocabulary, terms from QUDT and water quality are used where possible. These are supplemented with additional unit of measure (Unit), observed property (ScaledQuantityKind) and substance being observed (SubstanceOrTaxon) vocabulary entries required for the soil properties. The vocabulary terms have been extracted from the Australian Soil and Land Survey Field Handbook and Australian Soil Information Transfer and Evaluation System (SITES) vocabularies. The vocabulary links any chemical substances to items from the Chemical Entities of Biological Interest (ChEBI) ontology. By formalizing the model for observable properties, and clearly labelling the separate elements, soil property observations may

  6. Effects of Learning Styles on Self-directed Foreign Language Vocabulary Learning

    Directory of Open Access Journals (Sweden)

    Jing Wu

    2014-06-01

    Full Text Available Vocabulary learning is an on-going and life-long process, which is greatly influenced by individual differences. It has been noted that there is inefficient self-directed FL vocabulary learning of college students in mainland China and non-individualized learning may be one of the major reasons. As one of the most significant individual differences, a student’s learning style is supposed to largely determine their selection of learning strategies and have an effect on learning outcomes. This paper focuses on categorizing diversified vocabulary learning tasks which activate various vocabulary learning strategies, and integrating them into a learning system along particular learning paths to cater for different learning styles. The system is also tested in an empirical study for the purpose of checking the effects of these learning paths.

  7. A longitudinal assessment of vocabulary retention in symbol-competent chimpanzees (Pan troglodytes).

    Science.gov (United States)

    Beran, Michael J; Heimbauer, Lisa A

    2015-01-01

    A number of studies from the 1960s to 1990s assessed the symbolic competence of great apes and other animals. These studies provided varying forms of evidence that some species were capable of symbolically representing their worlds, both through productive symbol use and comprehension of symbolic stimuli. One such project at the Language Research Center involved training chimpanzees (Pan troglodytes) to use lexigram symbols (geometric visual stimuli that represented objects, actions, locations, and individuals). Those studies now are more than 40 years old, and only a few of the apes involved in those studies are still alive. Three of these chimpanzees (and a fourth, control chimpanzee) were assessed across a 10-year period from 1999 to 2008 for their continued knowledge of lexigram symbols and, in the case of one chimpanzee, the continued ability to comprehend human speech. This article describes that longitudinal assessment and outlines the degree to which symbol competence was retained by these chimpanzees across that decade-long period. All chimpanzees showed retention of lexigram vocabularies, although there were differences in the number of words that were retained across the individuals. One chimpanzee also showed continual retention of human speech perception. These retained vocabularies largely consisted of food item names, but also names of inedible objects, locations, individuals, and some actions. Many of these retained words were for things that are not common in the daily lives of the chimpanzees and for things that are rarely requested by the chimpanzees. Thus, the early experiences of these chimpanzees in symbol-rich environments have produced long-lasting memories for symbol meaning, and those competencies have benefited research in a variety of topics in comparative cognition.

  8. A longitudinal assessment of vocabulary retention in symbol-competent chimpanzees (Pan troglodytes.

    Directory of Open Access Journals (Sweden)

    Michael J Beran

    Full Text Available A number of studies from the 1960s to 1990s assessed the symbolic competence of great apes and other animals. These studies provided varying forms of evidence that some species were capable of symbolically representing their worlds, both through productive symbol use and comprehension of symbolic stimuli. One such project at the Language Research Center involved training chimpanzees (Pan troglodytes to use lexigram symbols (geometric visual stimuli that represented objects, actions, locations, and individuals. Those studies now are more than 40 years old, and only a few of the apes involved in those studies are still alive. Three of these chimpanzees (and a fourth, control chimpanzee were assessed across a 10-year period from 1999 to 2008 for their continued knowledge of lexigram symbols and, in the case of one chimpanzee, the continued ability to comprehend human speech. This article describes that longitudinal assessment and outlines the degree to which symbol competence was retained by these chimpanzees across that decade-long period. All chimpanzees showed retention of lexigram vocabularies, although there were differences in the number of words that were retained across the individuals. One chimpanzee also showed continual retention of human speech perception. These retained vocabularies largely consisted of food item names, but also names of inedible objects, locations, individuals, and some actions. Many of these retained words were for things that are not common in the daily lives of the chimpanzees and for things that are rarely requested by the chimpanzees. Thus, the early experiences of these chimpanzees in symbol-rich environments have produced long-lasting memories for symbol meaning, and those competencies have benefited research in a variety of topics in comparative cognition.

  9. Vocabulary Growth of the Advanced EFL Learner

    Science.gov (United States)

    Ozturk, Meral

    2015-01-01

    This article reports the results of two studies on the vocabulary growth of advanced learners of English as a foreign language in an English-medium degree programme. Growth in learners' written receptive and productive vocabularies was investigated in one cross-sectional and one longitudinal study over three years. The effect of word frequency on…

  10. Vocabulary Teaching in Action-Oriented Approach

    Science.gov (United States)

    Gunday, Rifat; Atmaca, Hasan

    2016-01-01

    The words are called as basic building blocks of language. It is impossible to discuss the language system without words. It is related to the vocabulary whether a language is rich or not. It is also related to the peoples' vocabulary to understand what is said and written or to express effectively their thoughts and their feelings verbally or in…

  11. Is Form-Focused Vocabulary Instruction Worthwhile?

    Science.gov (United States)

    Mason, Beniko; Krashen, Stephen

    2004-01-01

    Hearing stories can result in considerable incidental vocabulary development, for both first and second language acquisition (e.g. Elley 1992; Robbins and Ehri 1994; Senechal, LeFevre, Hudson and Lawson 1996). It has also been claimed, however, that direct instruction is more effective than incidental vocabulary acquisition and that combining both…

  12. Incidental Acquisition of Vocabulary by Reading

    Science.gov (United States)

    Ponniah, R. Joseph

    2011-01-01

    This study examines the impact of reading on vocabulary development with adult ESL students at the National Institute of Technology (Trichirappalli, India). The researcher analyzes the performance of the students who devoted their time to reading, and the students who learned consciously the meaning of words to develop their vocabulary knowledge.…

  13. Teaching Vocabulary to Senior High School Student

    Institute of Scientific and Technical Information of China (English)

    张庆梅

    2009-01-01

    This paper deals with methods of teaching vocabulary to high school students. It mainly talks about that vocabulary learning should relate to cultural background, connotative meaning, and social meaning. In order to collect dependable and reasonable result, a survey was conducted in a high school. The result of survey shows that this method is acceptable.

  14. Vocabulary Growth of the Advanced EFL Learner

    Science.gov (United States)

    Ozturk, Meral

    2015-01-01

    This article reports the results of two studies on the vocabulary growth of advanced learners of English as a foreign language in an English-medium degree programme. Growth in learners' written receptive and productive vocabularies was investigated in one cross-sectional and one longitudinal study over three years. The effect of word frequency on…

  15. Toward the Automatic Identification of Sublanguage Vocabulary.

    Science.gov (United States)

    Haas, Stephanie W.; He, Shaoyi

    1993-01-01

    Describes the development of a method for the automatic identification of sublanguage vocabulary words as they occur in abstracts. Highlights include research relating to sublanguages and their vocabulary; domain terms; evaluation criteria, including recall and precision; and implications for natural language processing and information retrieval.…

  16. My World of Words: Building Vocabulary Lists.

    Science.gov (United States)

    MarcoPolo Education Foundation.

    This lesson uses students' areas of interest both in and out of school to generate personalized vocabulary lists. Working in small groups, grade 3 to 5 students select their own vocabulary words and research their meanings. In a culminating activity that uses text and illustration, each student will create a "My World of Words Journal." During…

  17. Building Conceptual Understanding through Vocabulary Instruction

    Science.gov (United States)

    Rupley, William H.; Nichols, William Dee; Mraz, Maryann; Blair, Timothy R.

    2012-01-01

    Instructional design is an integral part of a balanced approach to teaching vocabulary instruction. This article presents several instructional procedures using research-based vocabulary strategies and explains how to design and adapt those strategies in order to reach desired learning outcomes. Emphasis is placed on research-based principles that…

  18. Vocabulary Strategies for a Fourth Grade Classroom

    Science.gov (United States)

    Howell, Gina

    2012-01-01

    For this project I worked with twelve of my fourth grade students from a local school in the southwestern part of Stokes County, North Carolina on increasing their vocabulary skills through the development and implementation of seven vocabulary strategies. During the Literature Review I came across the following seven strategies: Prediction;…

  19. Vocabulary Memorizing Strategies by Chinese University Students

    Science.gov (United States)

    Yang, Wei-dong; Dai, Wei-ping

    2012-01-01

    The findings of the study indicate that students prefer to engage in the vocabulary learning strategies that would be most appealing to them and that would entail less manipulation of the language. Of the four vocabulary memorizing strategies cited in the study (rote repetition, structural associations, semantic strategies, and mnemonic keyword…

  20. Helping Teachers Connect Vocabulary and Conceptual Understanding

    Science.gov (United States)

    Gay, A. Susan

    2008-01-01

    A focus on mathematics vocabulary must be part of teachers' instructional plans to develop students' understanding of key ideas. The author presents examples from work with preservice teachers regarding two vocabulary strategies and other related activities that can be used by middle and high school mathematics teachers. (Contains 8 figures.)

  1. Effects of Morphological Instruction on Vocabulary Acquisition

    Science.gov (United States)

    Bowers, Peter N.; Kirby, John R.

    2010-01-01

    The effects of a 20-session intervention targeting morphological word structure on vocabulary knowledge were investigated in four Grade 4 and 5 classes, assigned randomly to treatment and control conditions. Hierarchical regression analyses controlling for initial vocabulary showed significant instructional effects on morphological analysis and…

  2. English Vocabulary Instruction for English Learners

    Science.gov (United States)

    Manyak, Patrick C.; Bauer, Eurydice Bouchereau

    2009-01-01

    In this column Manyak and Bauer summarize key research addressing the English vocabulary development of English learners (ELs) and distill implications for instructional practice. First, the authors discuss several key studies that demonstrate the limitation of many ELs' English vocabulary knowledge and the negative impact of this limitation on…

  3. Discussion on University English Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    关颖

    2014-01-01

    Vocabulary is the foundation of language systems and the students' vocabulary ability directly affects their ability of lis⁃tening, speaking, reading, writing and translating.However, the traditional college English teaching of vocabulary can't meet the needs of memorizing words for students. Memorizing words is a heavy burden of students.Teaching practice shows that using the etymology of auxiliary teaching in the process of teaching can improve the students' learning interest and deepen their memory,al⁃so can improve the efficiency of vocabulary memory,which isnot only help students enlarge their vocabulary, but also can strengthen the students understand the English national cultures.In this paper, we start from the importance of vocabulary teach⁃ing and the present situation of college English vocabulary teaching,we talk about the feasibility of using etymology college Eng⁃lish vocabulary teaching strategies based on the etymology related knowledgein this paper in order to improve the English skills for students.

  4. Intentional Vocabulary Learning Using Digital Flashcards

    Science.gov (United States)

    Hung, Hsiu-Ting

    2015-01-01

    As an attempt to follow through on the claims made by proponents of intentional vocabulary learning, the present study set out to examine whether and how digital flashcards can be incorporated into a university course to promote the vocabulary learning of English language learners. The overall research findings underscore the value of learning…

  5. Conceptual Metaphor and English Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    徐立

    2013-01-01

      We can see how metaphors exist in everyday language, even if we may not always notice. Metaphor plays an important role in vocabulary teaching. In accordance with the analysis of the fundamental theories proposed by Lakoff&Johnson (1980), this thesis provides some suggestions which help English teachers improve vocabulary teaching strategies.

  6. Vocabulary Instruction for Second Language Readers

    Science.gov (United States)

    Nisbet, Deanna L.

    2010-01-01

    Over the past 20 years, research has consistently affirmed the importance of explicit vocabulary instruction for adult learners of English as a second language (ESL). Given the significant vocabulary demands faced by adult second language readers, ESL teachers must carefully target their instruction for maximum impact and to foster meaningful…

  7. Hypermedia and Vocabulary Acquisition for Second Language

    Science.gov (United States)

    Meli, Rocio

    2009-01-01

    The purpose of this study was to examine the impact of multimedia as a delivery tool for enhancing vocabulary in second-language classrooms. The mixed method design focused on specific techniques to help students acquire Spanish vocabulary and communication skills. The theoretical framework for this study consisted of second language theories…

  8. Glossary of Social Studies Terms and Vocabulary.

    Science.gov (United States)

    Todorov, Karen R., Comp.

    This glossary is a tool to help teachers better understand the language of social studies. It was not created to be a study guide for vocabulary tests, as learning social studies vocabulary is best done in context. The glossary is for use in conjunction with the social studies portion of Michigan's Clarifying Language in Michigan Benchmarks (MI…

  9. Mnemonic Vocabulary Instruction: Additional Effectiveness Evidence.

    Science.gov (United States)

    Levin, Joel R.; And Others

    1992-01-01

    Four experiments with 132 seventh graders, 162 eighth graders, 75 fourth graders, and 52 third graders compared the mnemonic keyword method with various other vocabulary learning strategies. Mnemonic keyword students outperformed sentence-context and free-study counterparts and generally outperformed others on tests of vocabulary usage. (SLD)

  10. The Choice of Effective Vocabulary Learning Strategies

    Institute of Scientific and Technical Information of China (English)

    LIU Jian-fang

    2014-01-01

    This paper aims to make a comparison between good and poor language learners in the use of vocabulary learning strat-egies. It will introduce some helpful vocabulary learning strategies to help those frustrated Chinese college non-English major learners.

  11. Fostering Academic Vocabulary Use in Writing

    Science.gov (United States)

    Brun-Mercer, Nicole; Zimmerman, Cheryl Boyd

    2015-01-01

    Though research has established a relationship between vocabulary knowledge and academic success and identified features to guide the L2 word learner through academic tasks (see Nation, 2013), less is known regarding student perceptions of academic vocabulary and the conscious decision-making process of these learners while they are writing. In…

  12. Vocabulary Growth of the Advanced EFL Learner

    Science.gov (United States)

    Ozturk, Meral

    2015-01-01

    This article reports the results of two studies on the vocabulary growth of advanced learners of English as a foreign language in an English-medium degree programme. Growth in learners' written receptive and productive vocabularies was investigated in one cross-sectional and one longitudinal study over three years. The effect of word…

  13. The Acculturation in English vocabulary

    Institute of Scientific and Technical Information of China (English)

    严灵; 张华刚; 张凯

    2010-01-01

    The thesis is concerned with the acculturation in English words.More specifically,some consideration will be given to the why and how of learning culture.It will be demonstrated that learning a foreign language is not tantamount to giving a homily on syntactic structures or learning new vocabulary and expressions,but mainly incorporates,or should incorporate,some cultural elements,which are intertwined with language itself.The main premise of the paper is that apart from enhancing and enriching communicative competence,cultural competence can also lead to empathy and respect toward different cultures as well as promote objectivity and cultural perspicacity.

  14. TEACHING VOCABULARY LEARNING STRATEGIES IN CLASSROOM

    Institute of Scientific and Technical Information of China (English)

    ZhangWentao

    2004-01-01

    Vocabulary knowledge is one component of language skills such as reading and writing and enables language learners to more appropriate language use. 13ecause of the features of vocabulary learning, which is wide coverage in content and time, teaching vocabulary should base on learners previous knowledge and arouse their motivation to .further learning. Teaching language learning strategy in class can help studentsmore consciously monitor their learning, learn autonomously and become independent learner. Hence teacher should attach great importance to the instruction of voeabalary learnig strategies to students in classroom. This paper discusses theoretically the function and application of teaching learning strategy in vocabulary learning and also provides an applicable class sample to teach some vocabulary learning strategies to students.

  15. Integrated speech and morphological processing in a connectionist continuous speech understanding for Korean

    CERN Document Server

    Lee, G; Lee, Geunbae; Lee, Jong-Hyeok

    1996-01-01

    A new tightly coupled speech and natural language integration model is presented for a TDNN-based continuous possibly large vocabulary speech recognition system for Korean. Unlike popular n-best techniques developed for integrating mainly HMM-based speech recognition and natural language processing in a {\\em word level}, which is obviously inadequate for morphologically complex agglutinative languages, our model constructs a spoken language system based on a {\\em morpheme-level} speech and language integration. With this integration scheme, the spoken Korean processing engine (SKOPE) is designed and implemented using a TDNN-based diphone recognition module integrated with a Viterbi-based lexical decoding and symbolic phonological/morphological co-analysis. Our experiment results show that the speaker-dependent continuous can be achieved with over 80.6\\% success rate directly from speech inputs for the middle-level vocabularies.

  16. Vocabulary and writing in a first and second language

    DEFF Research Database (Denmark)

    Albrechtsen, Dorte; Haastrup, Kirsten; Henriksen, Birgit

    the relationship between the skills and describe the level of development for individual learners within the three areas. In all cases, statistical and qualitative analyses are offered, the latter being based on the learners' own 'think-aloud' reports. Both researchers and teachers of language will find this in......Book description: Vocabulary and Writing in a First and Second Language is based on a large-scale empirical study. The innovative feature of the research was that the same students were asked to do the same tasks in both languages while reporting their thinking as they went along. Furthermore...... , they had to undertake the same tasks even though they were of very different experience, ranging from young children at school to university students. Three areas of learners' competencies and skills were explored: vocabulary knowledge, word guessing strategies and writing. The authors further explore...

  17. Desirable Difficulties in Vocabulary Learning.

    Science.gov (United States)

    Bjork, Robert A; Kroll, Judith F

    2015-01-01

    In this article we discuss the role of desirable difficulties in vocabulary learning from two perspectives, one having to do with identifying conditions of learning that impose initial challenges to the learner but then benefit later retention and transfer, and the other having to do with the role of certain difficulties that are intrinsic to language processes, are engaged during word learning, and reflect how language is understood and produced. From each perspective we discuss evidence that supports the notion that difficulties in learning and imposed costs to language processing may produce benefits because they are likely to increase conceptual understanding. We then consider the consequences of these processes for actual second-language learning and suggest that some of the domain-general cognitive advantages that have been reported for proficient bilinguals may reflect difficulties imposed by the learning process, and by the requirement to negotiate cross-language competition, that are broadly desirable. As Alice Healy and her collaborators were perhaps the first to demonstrate, research on desirable difficulties in vocabulary and language learning holds the promise of bringing together research traditions on memory and language that have much to offer each other.

  18. Vocabulary Development of Junior Teens

    Directory of Open Access Journals (Sweden)

    L. V. Nikonova

    2013-01-01

    Full Text Available The article deals with the communicative competence formation of young adolescents in the secondary school at the Russian language lessons. The author maintains that the key element of the above problem is the vocabulary development guaranteeing both comprehension and verbal expression formation – oral and written. The theoretical part of the research explores different word functions: nominal, communicative, text generating and semantic. The correlation between the mental development level and lexical semantic system formation is emphasized. The age specific features of junior teens are listed: rising interest to various life spheres and activi- ties, capability of formulating opinions and judgments, self-awareness, formation of values. The relationship complexity stimulates vocabulary development of 10 to 12 year-old children; however, the process requires peda- gogical facilitation.The monitoring of speech development proves the necessity of commutative competence formation of the fifth- and sixth-year pupils. The paper presents the model of communicative competence development and its approbation results received for the junior adolescents. 

  19. Vocabulary Development of Junior Teens

    Directory of Open Access Journals (Sweden)

    L. V. Nikonova

    2015-03-01

    Full Text Available The article deals with the communicative competence formation of young adolescents in the secondary school at the Russian language lessons. The author maintains that the key element of the above problem is the vocabulary development guaranteeing both comprehension and verbal expression formation – oral and written. The theoretical part of the research explores different word functions: nominal, communicative, text generating and semantic. The correlation between the mental development level and lexical semantic system formation is emphasized. The age specific features of junior teens are listed: rising interest to various life spheres and activi- ties, capability of formulating opinions and judgments, self-awareness, formation of values. The relationship complexity stimulates vocabulary development of 10 to 12 year-old children; however, the process requires peda- gogical facilitation.The monitoring of speech development proves the necessity of commutative competence formation of the fifth- and sixth-year pupils. The paper presents the model of communicative competence development and its approbation results received for the junior adolescents. 

  20. Jargonizing: The use of the grounded theory vocabulary

    Directory of Open Access Journals (Sweden)

    Barney G. Glaser, Ph.D., Hon. Ph.D.

    2009-03-01

    Full Text Available When in doubt, jargonize.When you wish to belong, network, be collegial or be ‘a part of’,jargonize.When you want to sound knowledgeable, jargonize.When you wish to sound experienced, jargonize.Jargonizing is normal. All people, all human kind, jargonize in their lives to some degree or other. We use the vocabulary (jargon of the area in which we act and talk. Jargon is a vocabulary of action by which to talk about what is going on. Most fields have their jargon. Few do not. Jargonizing cannot be stopped. It is needed. It can be very meaningful, properly so, for a field. In this book, however, I am writing about jargoning as just words with little or no real meaning, but sounding good and knowledgeable when talking about an area that one knows little or nothing about. In this way, jargonizing continually regenerates the GT (grounded theory vocabulary wrongly as it is being applied to QDA (qualitative data analysis concerns. Grounded theory is the buzzword in academic circles doing QDA research.

  1. THE VOCABULARY LEARNING STRATEGIES USED BY UUM STUDENTS IN RELATION TO THEIR PROFICIENCY LEVELS

    Directory of Open Access Journals (Sweden)

    Noraziah Mohd Amin

    2013-04-01

    Abstract  This thesis is concerned with the vocabulary learning strategies used by Band 1 and Band 4 undergraduate students of Universiti Utara Malaysia (UUM.  The objectives of this descriptive study were to survey the vocabulary learning strategies used by the respondents and to determine to what extent their use of the strategies was influenced by their proficiency level. The instrument employed in the study was a questionnaire developed by Lachini (2007 based on Cottrell’s classification of learning strategies. It consists of five categories of vocabulary learning strategies: creative, reflective, effective, active and motivated. The responses of 100 Band 1 and 100 Band 4 students to the questionnaire were examined on the frequency of their use of the vocabulary learning strategies. The results indicated that there was no significant difference in terms of the frequency of use between Band 1 and Band 4 participants as  the majority of both groups employed most of the strategies either ‘a little’ or ‘often’. The findings of the study perhaps could help instructors to facilitate the learning of English vocabulary by UUM students and other students at large.    Keywords: The vocabulary learning strategies, proficiency levels

  2. The Role of E-Vocabularies in the Description and Retrieval of Digital Educational Resources

    Directory of Open Access Journals (Sweden)

    Ana M. Fernández-Pampillón

    2017-03-01

    Full Text Available Vocabularies are linguistic resources that make it possible to access knowledge through words. They can constitute a mechanism to identify, describe, explore, and access all the digital resources with informational content pertaining to a specific knowledge domain. In this regard, they play a key role as systems for the representation and organization of knowledge in environments in which content is created and used in a collaborative and free manner, as is the case of social wikis and blogs on the Internet or educational content in e-learning environments. In e-learning environments, electronic vocabularies (e-vocabularies constitute a mechanism for conceptual representation of digital educational resources. They enable human and software agents either to locate and interpret resource content in large digital repositories, including the web, or to use them (vocabularies as an educational resource by itself to learn a discipline terminology. This review article describes what e-vocabularies are, what they are like, how they are used, how they work, and what they contribute to the retrieval of digital educational resources. The goal is to contribute to a clearer view of the concepts which we regard as crucial to understand e-vocabularies and their use in the field of e-learning to describe and retrieve digital educational resources.

  3. Learning vocabulary through a serious game in Primary Education

    NARCIS (Netherlands)

    Heitink, Maaike Christine; Fisser, Petra; Voogt, Joke; McBride, Ron; Searson, Michael

    2013-01-01

    This study explored the effect of a serious game on the vocabulary of students in primary education. 206 students and 10 teachers used the game during vocabulary lessons in three conditions: (a)online game and vocabulary instruction, (b)online game only, and (c)paper game and vocabulary instruction.

  4. Teaching Vocabulary to Preschool Children with Hearing Loss

    Science.gov (United States)

    Lund, Emily; Douglas, W. Michael

    2016-01-01

    Despite poor vocabulary outcomes for children with hearing loss, few studies have evaluated the effectiveness of specific vocabulary teaching methods on vocabulary learning for this group. The authors compared three vocabulary instruction conditions with preschool children with hearing loss: (a) explicit, direct instruction; (b) follow-in…

  5. Measuring Second Language Vocabulary Knowledge Using a Temporal Method

    Science.gov (United States)

    Tanabe, Masayuki

    2016-01-01

    The present study addressed the role of speed as a factor in tests of second language (L2) vocabulary knowledge, presupposing that speed of performance is important in actual language use. Research questions were: (a) Do learners with a larger vocabulary size answer faster on an L2 vocabulary breadth test than smaller vocabulary sized learners?;…

  6. Effects of Individualized Word Retrieval in Kindergarten Vocabulary Intervention

    Science.gov (United States)

    Damhuis, Carmen M. P.; Segers, Eliane; Scheltinga, Femke; Verhoeven, Ludo

    2016-01-01

    We examined the effects of adaptive word retrieval intervention on a classroom vocabulary program on children's vocabulary acquisition in kindergarten. In the experimental condition, word retrieval was provided in a classroom vocabulary program, combining implicit and explicit vocabulary instructions. Children performed extra word retrieval…

  7. Teaching Vocabulary to Preschool Children with Hearing Loss

    Science.gov (United States)

    Lund, Emily; Douglas, W. Michael

    2016-01-01

    Despite poor vocabulary outcomes for children with hearing loss, few studies have evaluated the effectiveness of specific vocabulary teaching methods on vocabulary learning for this group. The authors compared three vocabulary instruction conditions with preschool children with hearing loss: (a) explicit, direct instruction; (b) follow-in…

  8. Vocabulary Is Important for Some, but Not All Reading Skills

    Science.gov (United States)

    Ricketts, Jessie; Nation, Kate; Bishop, Dorothy V. M.

    2007-01-01

    Although there is evidence for a close link between the development of oral vocabulary and reading comprehension, less clear is whether oral vocabulary skills relate to the development of word-level reading skills. This study investigated vocabulary and literacy in 81 children aged 8 to 10 years. In regression analyses, vocabulary accounted for…

  9. A Research on Vocabulary Teaching Strategies and Students’ Mastery

    Directory of Open Access Journals (Sweden)

    Tian Yuan

    2013-01-01

    Full Text Available By means of questionnaire and quantitative research, this article aims at investigating the effects on students’ mastery of vocabulary by studying teachers’ adoption of seven kinds of common vocabulary teaching strategies and the usage of analyzing strategies in intensive English in order to improve vocabulary teaching strategies and to help enlarge students’ vocabulary.

  10. A RESEARCH ON VOCABULARY TEACHING STRATEGIES AND STUDENTS’ MASTERY

    OpenAIRE

    Tian Yuan; Liu Bingbing

    2013-01-01

    By means of questionnaire and quantitative research, this article aims at investigating the effects on students’ mastery of vocabulary by studying teachers’ adoption of seven kinds of common vocabulary teaching strategies and the usage of analyzing strategies in intensive English in order to improve vocabulary teaching strategies and to help enlarge students’ vocabulary.

  11. The Ways Metaphor is Brought into Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    LiuYan; ShenXiang jing

    2014-01-01

    The purpose of vocabulary teaching in English is to enlarge breadth and depth of vocabulary and From the point of cognitive metaphor, meaning extension of vocabulary contributes a lot to the vocabulary teaching. The paper tries to sum up ways metaphor is brought into teaching as a means of improving English teaching.

  12. The Ways Metaphor is Brought into Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    LiuYan; ShenXiang; jing

    2014-01-01

    The purpose of vocabulary teaching in English is to enlarge breadth and depth of vocabulary and From the point of cognitive metaphor,meaning extension of vocabulary contributes a lot to the vocabulary teaching.The paper tries to sum up ways metaphor is brought into teaching as a means of improving English teaching.

  13. Strategies on teaching English vocabulary of Non-English majors

    Institute of Scientific and Technical Information of China (English)

    李辉

    2014-01-01

    As we know that mastery of vocabulary is an essential component of foreign language acquisition, and learners cannot learn a language without vocabulary. Based on the vocabulary leaning problems of Non-English majors, this article makes analysis of the main factors for the problems and tries to provide some vocabulary teaching strategies to solve the problems.

  14. Increasing Middle School Students’ Vocabulary through Extensive Reading

    Institute of Scientific and Technical Information of China (English)

    何小庆

    2012-01-01

    This paper discusses how to increase middle school English learners’ vocabulary through reading.Vocabulary is a core component of language proficiency and provides much of the basis of how well learners speak,listen,read,and write.Without an extensive vocabulary and strategies for acquiring new vocabulary,middle school students often feel discouraged during their study.They will lose their interests in English day by day.So it’s very important for middle school English learners to develop their vocabulary efficiently.There are many ways to enlarge vocabulary.In this article we will focus on improving middle school English learners’ vocabulary by extensive reading.

  15. e-Vocabulary and e-Learning

    Directory of Open Access Journals (Sweden)

    Ana-María Fernández-Pampillón

    2017-03-01

    Full Text Available A vocabulary is a linguistic resource that helps manage, query and retrieve information and/or knowledge via words. If vocabularies are built and used in electronic format, they are referred as e-vocabularies. E-vocabularies have been used in Education to help teachers and students to, amongst many issues, (1 comprehend and relate the concepts and the objects of a given knowledge domain; (2 understand and learn languages, be they specialized or not; and (3 identify, describe and query knowledge and digital educational resources. Despite its utility, it is in this field where vocabularies seem to be less systematically developed, known, studied, analyzed, compared and/or linked. For this reason, we thought it was an opportunity to edit a dedicated volume with real experiences concerning the construction, use and evaluation of electronic vocabularies relating to education, and their application to the Internet and e-learning. The result is, finally, this Special Issue with five papers that represent part of the current state-of-the-art in the construction and use of e-vocabularies and education.

  16. In Situ Stoichiometry in a Large River: Continuous Measurement of Doc, NO3 and PO4 in the Sacramento River

    Science.gov (United States)

    Downing, B. D.; Pellerin, B. A.; Bergamaschi, B. A.; Saraceno, J.

    2011-12-01

    Studying controls on geochemical processes in rivers and streams is difficult because concentration and composition often changes rapidly in response to physical and biological forcings. Understanding biogeochemical dynamics in rivers will improve current understanding of the role of watershed sources to carbon cycling, river and stream ecology, and loads to estuaries and oceans. Continuous measurements of dissolved organic carbon (DOC), nitrate (NO3-) and soluble reactive phosphate (SRP) concentrations are now possible, along with some information about DOC composition. In situ sensors designed to measure these constituents provide high frequency, real-time data that can elucidate hydrologic and biogeochemical controls which are difficult to detect using more traditional sampling approaches. Here we present a coupled approach, using in situ optical instrumentation with discharge measurements to provide quantitative estimates of constituent loads to investigate C, NO3- and SRP sources and processing in the Sacramento River, CA, USA. Continuous measurement of DOC concentration was conducted by use of a miniature in situ fluorometer (Turner Designs Cyclops) designed to measure chromophoric dissolved organic matter fluorescence (FDOM) over the course of an entire year. Nitrate was measured concurrently using a Satlantic SUNA and phosphate was measured using a WETLabs model Cycle-P instrument for a two week period in July 2011. Continuous measurement from these instruments paired with continuous measurement of physical water quality variables such as temperature, pH, specific conductance, dissolved oxygen, and turbidity, were used to investigate physical and chemical dynamics of DOC, NO3-, SRP over varying time scales. Deploying these instruments at pre-existing USGS discharge gages allowed for calculation of instantaneous and integrated constituent fluxes, as well as filling in gaps in our understanding biogeochemical processes and transport. Results from the study

  17. Vocabulary Instruction: Software Flashcards vs. Word Clouds

    Directory of Open Access Journals (Sweden)

    Vahid Mansouri

    2015-02-01

    Full Text Available When it comes to language learning, vocabulary learning is the main activity focused on. Vocabulary learning is the main problem and also the goal of new language learners. It is one of the major problems that language learners encounter during learning a new language. Krashen (1989 (cited in Tokac, 2005 points out the role of vocabulary in a language by stating that most of the meaning in a language is carried by words. This is why people visiting a foreign country prefer to take their dictionaries with them rather than grammar books. And on the other hand, nowadays everything is connected to technology and language learning and teaching is not an exception. As Stockwell (2007 cites, vocabulary has been one of the most commonly taught language areas through technology in recent years. Integration of computer and second/foreign language teaching is admired by many researchers. It is clear that technology can help enhance the degree of vocabulary learning, but the point is that which computer assisted vocabulary learning can work better and would be more efficient? In this paper we will discuss and analyze the usage of two kinds of different ways of using technology and see which of the methods will work better. A comparison between vocabulary software flashcard and word clouds (Wordle on vocabulary learning (retention will be compared by the researcher. We will see that using which method will encourage learners more and they will do better with which kind of using technology? The study is carried out in Iran on 44 English learners. The result is really surprising. Both of the groups were interested in technology, but one group did really better. Keywords: CALL, CAVL, Software flashcard, Word Clouds, Wordle, Vocabulary learning

  18. Investigating the Role of Pop Songs on Vocabulary Recall, Attitude and Retention of Iranian EFL Learners: The Case of Gender

    Directory of Open Access Journals (Sweden)

    Pouya Shakerian

    2016-04-01

    Full Text Available Pop songs are, in fact, an ideal source for incidental vocabulary learning because teenagers often spend large amounts of their free time listening to music and in particular to pop songs. Employing an experimental approach, this study attempted to investigate the role of pop songs on vocabulary recall, attitude and retention of Iranian advanced adult EFL learners based on their gender. In so doing a language placement test (Quick Oxford Placement Test was administered to 100 male and female language learners studying English at different language institutes in Esfahan, Iran. Ultimately, 60 advanced learners (30 males - 30 females were selected by leaving out the students of other levels of proficiency and randomly divided into two relatively homogenous groups as musical and non-musical groups. While the students of musical group (=30 were taught the new vocabulary in the syllabus through 60 different pop songs chosen by themselves through a questionnaire, the students of the non-musical group (n=30 were taught new vocabulary without using the songs. The participants were examined based on an English vocabulary test developed by the researchers, which probed into the learners’ vocabulary recall. A questionnaire was also used to investigate the attitude of the learners towards the instruction. A month later the vocabulary test was re-administered as a delayed retention test and obtained data were statistically analyzed. The results of t-tests demonstrated that the musical group outscored the non-musical group on vocabulary recall and retention. The results also showed the male learners perform better than the females. Keywords: incidental vocabulary, pop songs, vocabulary recall, attitude, retention

  19. THE VOCABULARY SELF-COLLECTION STRATEGY:ENHANCING ACTIVE VOCABULARY THROUGH TOPICS

    Institute of Scientific and Technical Information of China (English)

    1996-01-01

    IntroductionThe majority of English courses books in China provide students with long lists of vocabulary attached tothe end of the texts.Since vocabulary is regarded as central to language learning.Students are supposedto memorise all the new words and expressions on which they will be tested.Teachers rarely considerwhich items may be students active vocabulary and which items may be students passive vocabulary.Therefore.they treat all the new words and expressions with an equal amount of time and care:andstudents tend to treat all the new items as active vocabulary.The consequence of this approach is often:students get bored of memorising the long lists:even if they succeed in memorising all the new items,they are usually still unable to use themactively.This inappropriate method of teaching vocabulary tends to make students lose interest inlearning.

  20. Renormalization-scale-invariant continuation of truncated QCD (QED) series an analysis beyond large-$\\beta_0$ approximation

    CERN Document Server

    Cvetic, G

    1998-01-01

    An approximation algorithm is proposed to transform truncated QCD (or QED) series for observables. The approximation is a modification of the Baker-Gammel approximants, and is independent of the renormalization scale (RScl) $\\mu$ -- the coupling parameter $\\alpha(\\mu)$ in the series and in the resulting approximants can evolve according to the perturbative renormalization group equation (RGE) to any chosen loop order. The proposed algorithm is a natural generalization of the recently proposed method of diagonal Padé approximants, the latter making the result RScl-invariant in large-$\\beta_0$ approximation for ${\\alpha}(\\mu)$. The algorithm described below can extract large amount of information from a calculated available truncated perturbative series for an observable, by implicitly resumming large classes of diagrams.

  1. Vocabulary Instruction: Software Flashcards vs. Word Clouds

    OpenAIRE

    Vahid Mansouri

    2015-01-01

    When it comes to language learning, vocabulary learning is the main activity focused on. Vocabulary learning is the main problem and also the goal of new language learners. It is one of the major problems that language learners encounter during learning a new language. Krashen (1989) (cited in Tokac, 2005) points out the role of vocabulary in a language by stating that most of the meaning in a language is carried by words. This is why people visiting a foreign country prefer to take their dic...

  2. VOCABULARY TEACHING FOR NON—ENGLISH MAJORS

    Institute of Scientific and Technical Information of China (English)

    1993-01-01

    Introduction "How can we enlarge the students’ vocabulary?" This is a very essential problem in the teaching of Enslish as a foreign language for non-English majors in our college. Firstly, their English level is low, They are not only lack of linguistic patterns, grammar rules, but also vocabulary, Secondly, they have only three hours of intensive reading every week, They should pass 2-grade college English examination through two years studying of English. Thirdly, botn the teachers and students are in very passive position in English language teaching and learning. Almost every lesson begins with vocabulary, then text reading comprehension, and exercises, which based on the traditional method.

  3. Attempt to improve Vocabulary Teaching for Higher Vocational College Students

    Institute of Scientific and Technical Information of China (English)

    赵春香

    2012-01-01

      Vocabulary is the building material of language, and vocabulary study is therefore one of the most important aspects in any language learning. It is a key point to improve English learning through paying more attention to vocabulary acquisition. However, vocabulary teaching is one aspect of language teaching that has not been given enough attention in China. Therefore, some issues in vocabulary teaching and learning in higher vocational colleges are being addressed at present, which are worthy of our further consideration.

  4. COMPUTING THE VOCABULARY DEMANDS OF L2 READING

    Directory of Open Access Journals (Sweden)

    Tom Cobb

    2007-02-01

    Full Text Available Linguistic computing can make two important contributions to second language (L2 reading instruction. One is to resolve longstanding research issues that are based on an insufficiency of data for the researcher, and the other is to resolve related pedagogical problems based on insufficiency of input for the learner. The research section of the paper addresses the question of whether reading alone can give learners enough vocabulary to read. When the computer’s ability to process large amounts of both learner and linguistic data is applied to this question, it becomes clear that, for the vast majority of L2 learners, free or wide reading alone is not a sufficient source of vocabulary knowledge for reading. But computer processing also points to solutions to this problem. Through its ability to reorganize and link documents, the networked computer can increase the supply of vocabulary input that is available to the learner. The development section of the paper elaborates a principled role for computing in L2 reading pedagogy, with examples, in two broad areas, computer-based text design and computational enrichment of undesigned texts.

  5. Exposing SAMOS Data and Vocabularies within the Semantic Web

    Science.gov (United States)

    Dockery, Nkemdirim; Elya, Jocelyn; Smith, Shawn

    2014-05-01

    As part of the Ocean Data Interoperability Platform (ODIP), we at the Center for Ocean-Atmospheric Prediction Studies (COAPS) will present the development process for the exposure of quality-controlled data and core vocabularies managed by the Shipboard Automated Meteorological Oceanographic System (SAMOS) initiative using Semantic Web technologies. Participants in the SAMOS initiative collect continuous navigational (position, course, heading, speed), meteorological (winds, pressure, temperature, humidity, radiation), and near-surface oceanographic (sea temperature, salinity) parameters while at sea. One-minute interval observations are packaged and transmitted back to COAPS via daily emails, where they undergo standardized formatting and quality control. The authors will present methods used to expose these daily datasets. The Semantic Web, a vision of the World Wide Web Consortium, focuses on extending the principles of the web from connecting documents to connecting data. The creation of a web of Linked Data that can be used across different applications in a machine-readable way is the ultimate goal. The Resource Description Framework (RDF) is the standard language and format used in the Semantic Web. RDF pages may be queried using the SPARQL Protocol and RDF Query Language (SPARQL). The authors will showcase the development of RDF resources that map SAMOS vocabularies to internationally served vocabularies such as those found in the Natural Environment Research Council (NERC) Vocabulary Server. Each individual SAMOS vocabulary term (data parameter and quality control flag) will be described in an RDF resource page. These RDF resources will define each SAMOS vocabulary term and provide a link to the mapped vocabulary term (or multiple terms) served externally. Along with enhanced retrieval by parameter, time, and location, we will be able to add additional parameters with the confidence that they follow an international standard. The production of RDF

  6. The Role of Controlled Vocabularies in Digital Archiving

    Science.gov (United States)

    Miller, S.; Clark, P. D.; Neiswender, C.

    2006-12-01

    Over the years, and across projects and disciplines, there is an unfortunate tendency for descriptive terminology to wander. Some of the variation is due to evolution in sensor technology, but some may be due to odd abbreviations, typographical errors on rolling decks, institutional practices, or a momentary inspiration to use a new term. As a consequence, we now face challenges in searching digital collections, and in designing re-usable tools that can be applied to multiple institutions. Practical experience with the SIOExplorer Digital Library of 700 SIO cruises has allowed us to develop techniques to assess variations in metadata values across collections of more than 100,000 digital objects, including datasets, documents and images spanning more than 50 years. The assessment helps to guide the development of controlled vocabularies, which in turn can be used to enable automatic detection of metadata errors, and in some cases automatic correction. Controlled vocabularies are playing an essential role in extending the technology to the collections of the Woods Hole Oceanographic Institution, including cruises, Alvin dives and ROV operations. Examples include the names of chief scientists, port names, operational areas, science themes, image types, sample types, data types, and processing steps. Controlled vocabularies underlie an emerging set of tools that support web user interfaces, large-scale automatic harvesting of metadata and data, project status assessment, workflow management and overall quality control. They are a key resource for user upload code in the IODP Site Survey Data Bank, prompting and enforcing appropriate metadata values for ocean drilling proposal support data. Compared to previous generations of hard-wired code, the access to controlled vocabularies allows a project to evolve with flexibility, and the code to be ported from one project to another. These efforts are supported by a Digital Archiving award from the Library of Congress and

  7. Impact of Training Deep Vocabulary Learning Strategies on Vocabulary Retention of Iranian EFL Learners

    Directory of Open Access Journals (Sweden)

    Seyed Javad Es-hagi Sardroud

    2013-05-01

    Full Text Available Considering the overall tendency of foreign language learners to use mechanical strategies of rote rehearsal in vocabulary learning and their resistance towards use of 'deep' vocabulary learning strategies, namely contextual guessing, Keyword Method, metacognitive strategy, and semantic mapping, this study intended (a to explore what impact the instruction of these deep strategies, on vocabulary retention of 32 post-intermediate adult EFL Iranian learners, (b to determine how the variable of gender influences the vocabulary retention of students after receiving training in these strategies. To this end, on the basis of a strategy-based model of instruction–CALLA (Chamot & O'Malley, 1994, the experimental group received training in using 'deep' vocabulary learning strategies while the control group received only the common method of vocabulary teaching. After the treatment, following factorial design, the performance of the participants in the teacher-made vocabulary test as posttest was analyzed statistically.  The results indicated higher vocabulary retention for the experimental group, and it was revealed that female students were more receptive to strategy training. This study provides evidence for confirmation of 'depth of processing' hypothesis and the emerging theory about the impact of gender on effective strategy teaching and use, and it recommends incorporation of teaching these 'deep' strategies of vocabulary learning into EFL classrooms.

  8. The Effect of Vocabulary Flooding Technique on Iranian EFL Elementary Learners’ Vocabulary Learning

    Directory of Open Access Journals (Sweden)

    Touran Ahour

    2013-11-01

    Full Text Available The aim of this study was to find out the effect of using vocabulary flooding technique on Iranian EFL elementary learners’ vocabulary learning at the recognition level. A pretest-posttest control group design was used in this quasi-experimental research. The study was conducted at a secondary school in Sahand, a city located in the East-Azerbaijan province in Iran. Four intact grade-three classes were considered for the study. A KET test was administered and based on its results, two classes were selected as the homogenous ones, which were randomly assigned into the vocabulary flooding (experimental and no vocabulary flooding (control groups, each with 30 students. After the vocabulary recognition pretest, supplementary vocabulary teaching was used as the treatment in both groups. In the Experimental group, the target words were presented and practiced in flooding form, that is, in six or more sentences, while in the Control group, students were taught and practiced in only one sentence. After the treatment, two posttests (immediate and delayed were conducted in both groups. The results of the One-way within-subjects and between-subjects Repeated-Measures ANOVA revealed that there were statistically significant differences within and between the experimental and control groups in the three vocabulary recognition tests. It was found that the participants’ receptive vocabulary knowledge was improved in the experimental group as a result of using vocabulary flooding technique. The implications are provided for the syllabus designers, textbook writers and EFL teachers.

  9. A Simulation Study of Categorizing Continuous Exposure Variables Measured with Error in Autism Research: Small Changes with Large Effects

    Directory of Open Access Journals (Sweden)

    Karyn Heavner

    2015-08-01

    Full Text Available Variation in the odds ratio (OR resulting from selection of cutoffs for categorizing continuous variables is rarely discussed. We present results for the effect of varying cutoffs used to categorize a mismeasured exposure in a simulated population in the context of autism spectrum disorders research. Simulated cohorts were created with three distinct exposure-outcome curves and three measurement error variances for the exposure. ORs were calculated using logistic regression for 61 cutoffs (mean ± 3 standard deviations used to dichotomize the observed exposure. ORs were calculated for five categories with a wide range for the cutoffs. For each scenario and cutoff, the OR, sensitivity, and specificity were calculated. The three exposure-outcome relationships had distinctly shaped OR (versus cutoff curves, but increasing measurement error obscured the shape. At extreme cutoffs, there was non-monotonic oscillation in the ORs that cannot be attributed to “small numbers.” Exposure misclassification following categorization of the mismeasured exposure was differential, as predicted by theory. Sensitivity was higher among cases and specificity among controls. Cutoffs chosen for categorizing continuous variables can have profound effects on study results. When measurement error is not too great, the shape of the OR curve may provide insight into the true shape of the exposure-disease relationship.

  10. A Simulation Study of Categorizing Continuous Exposure Variables Measured with Error in Autism Research: Small Changes with Large Effects.

    Science.gov (United States)

    Heavner, Karyn; Burstyn, Igor

    2015-08-24

    Variation in the odds ratio (OR) resulting from selection of cutoffs for categorizing continuous variables is rarely discussed. We present results for the effect of varying cutoffs used to categorize a mismeasured exposure in a simulated population in the context of autism spectrum disorders research. Simulated cohorts were created with three distinct exposure-outcome curves and three measurement error variances for the exposure. ORs were calculated using logistic regression for 61 cutoffs (mean ± 3 standard deviations) used to dichotomize the observed exposure. ORs were calculated for five categories with a wide range for the cutoffs. For each scenario and cutoff, the OR, sensitivity, and specificity were calculated. The three exposure-outcome relationships had distinctly shaped OR (versus cutoff) curves, but increasing measurement error obscured the shape. At extreme cutoffs, there was non-monotonic oscillation in the ORs that cannot be attributed to "small numbers." Exposure misclassification following categorization of the mismeasured exposure was differential, as predicted by theory. Sensitivity was higher among cases and specificity among controls. Cutoffs chosen for categorizing continuous variables can have profound effects on study results. When measurement error is not too great, the shape of the OR curve may provide insight into the true shape of the exposure-disease relationship.

  11. Nutrient Regulation by Continuous Feeding Removes Limitations on Cell Yield in the Large-Scale Expansion of Mammalian Cell Spheroids

    OpenAIRE

    Weegman, Bradley P; Peter Nash; Alexandra L Carlson; Kristin J Voltzke; Zhaohui Geng; Marjan Jahani; Benjamin B Becker; Papas, Klearchos K.; Firpo, Meri T.

    2013-01-01

    Cellular therapies are emerging as a standard approach for the treatment of several diseases. However, realizing the promise of cellular therapies across the full range of treatable disorders will require large-scale, controlled, reproducible culture methods. Bioreactor systems offer the scale-up and monitoring needed, but standard stirred bioreactor cultures do not allow for the real-time regulation of key nutrients in the medium. In this study, β-TC6 insulinoma cells were aggregated and cul...

  12. Acquisition of a 250-word vocabulary through a tactile vocoder.

    Science.gov (United States)

    Brooks, P L; Frost, B J; Mason, J L; Chung, K

    1985-04-01

    In a previous experiment [P. L. Scilley, "Evaluation of a vibrotactile auditory prosthetic device for the profoundly deaf," unpublished Masters thesis, Queen's University, Kingston, Canada (1980)] two normal subjects learned to identify 70 and 150 words, respectively, using the Queen's Tactile Vocoder. In the present experiment, the most advanced subject continued word learning until a tactile vocabulary of 250 words was acquired. At this point randomized tests were given to obtain an indication of final performance level. From these data conditional probabilities of correct response for each stimulus word and significant confusions were obtained, which provides insight into the advantages and present limitations of the tactile vocoder.

  13. PDS4 Training: Key Concepts and Vocabulary

    Science.gov (United States)

    Gordon, M. K.; Guinness, E. A.; Neakrase, L. D. V.; Padams, J.; Raugh, A. C.

    2017-06-01

    Those planning to attend the PDS4 training session are strongly encouraged to review this poster prior to the training session. This poster briefly describes new vocabulary and a number of key concepts introduced with PDS4.

  14. Enhanced Context Recognition by Sensitivity Pruned Vocabularies

    DEFF Research Database (Denmark)

    Madsen, Rasmus Elsborg; Sigurdsson, Sigurdur; Hansen, Lars Kai

    2004-01-01

    Language independent `bag-of-words' representations are surprisingly effective for text classification. The generic BOW approach is based on a high-dimensional vocabulary which may reduce the generalization performance of subsequent classifiers, e.g., based on ill-posed principal component...... transformations. In this communication our aim is to study the effect of sensitivity based pruning of the bag-of-words representation. We consider neural network based sensitivity maps for determination of term relevancy, when pruning the vocabularies. With reduced vocabularies documents are classified using...... a latent semantic indexing representation and a probabilistic neural network classifier. Pruning the vocabularies to approximately 20% of the original size, we find consistent context recognition enhancement for two mid size data-sets for a range of training set sizes. We also study the applicability...

  15. Controlled Vocabulary Standards for Anthropological Datasets

    Directory of Open Access Journals (Sweden)

    Celia Emmelhainz

    2014-07-01

    Full Text Available This article seeks to outline the use of controlled vocabulary standards for qualitative datasets in cultural anthropology, which are increasingly held in researcher-accessible government repositories and online digital libraries. As a humanistic science that can address almost any aspect of life with meaning to humans, cultural anthropology has proven difficult for librarians and archivists to effectively organize. Yet as anthropology moves onto the web, the challenge of organizing and curating information within the field only grows. In considering the subject classification of digital information in anthropology, I ask how we might best use controlled vocabularies for indexing digital anthropological data. After a brief discussion of likely concerns, I outline thesauri which may potentially be used for vocabulary control in metadata fields for language, location, culture, researcher, and subject. The article concludes with recommendations for those existing thesauri most suitable to provide a controlled vocabulary for describing digital objects in the anthropological world.

  16. Vocabulary Learning: The Use of Grids.

    Science.gov (United States)

    Harvey, P. D.

    1983-01-01

    A system of grids to organize related vocabulary words and their associations developed for teacher trainees is illustrated, and other possible uses of the categorizing system, by students, teachers, and translators, are discussed. (MSE)

  17. Towards a Southern African English Defining Vocabulary

    African Journals Online (AJOL)

    user

    In my experience, defining vocabularies compiled for English dictionaries for a British or .... Oxford 3000, which contains 3 540 entries, and is available on the Internet. ... One thing that became apparent was a lack of consistency within lexical.

  18. How to Enlarge Our English Vocabulary

    Institute of Scientific and Technical Information of China (English)

    杨淑秀

    2010-01-01

    Mastering abundant vocabulary is the base for us to learn English well. Therefore we should do regular intensive reading and extensive reading. We should use the dictionary effectively; We should also have a good command of Lexicology.

  19. Ontology Based Vocabulary Matching for Oceanographic Instruments

    Science.gov (United States)

    Chen, Yu; Shepherd, Adam; Chandler, Cyndy; Arko, Robert; Leadbetter, Adam

    2014-05-01

    Data integration act as the preliminary entry point as we enter the era of big data in many scientific domains. However the reusefulness of various dataset has met the hurdle due to different initial of interests of different parties, therefore different vocabularies in describing similar or semantically related concepts. In this scenario it is vital to devise an automatic or semi-supervised algorithm to facilitate the convergence of different vocabularies. The Ocean Data Interoperability Platform (ODIP) seeks to increase data sharing across scientific domains and international boundaries by providing a forum to harmonize diverse regional data systems. ODIP participants from the US include the Rolling Deck to Repository (R2R) program, whose mission is to capture, catalog, and describe the underway/environmental sensor data from US oceanographic research vessels and submit the data to public long-term archives. In an attempt to harmonize these regional data systems, especially vocabularies, R2R recognizes the value of the SeaDataNet vocabularies served by the NERC Vocabulary Server (NVS) hosted at the British Oceanographic Data Centre as a trusted, authoritative source for describing many oceanographic research concepts such as instrumentation. In this work, we make use of the semantic relations in the vocabularies served by NVS to build a Bayesian network and take advantage of the idea of entropy in evaluating the correlation between different concepts and keywords. The performance of the model is evaluated against matching instruments from R2R against the SeaDataNet instrument vocabularies based on calculated confidence scores in the instrument pairings. These pairings with their scores can then be analyzed for assertion growing the interoperability of the R2R vocabulary through its links to the SeaDataNet entities.

  20. NASA thesaurus. Volume 2: Access vocabulary

    Science.gov (United States)

    1988-01-01

    The access vocabulary, which is essentially a permuted index, provides access to any word or number in authorized postable and nonpostable terms. Additional entries include postable and nonpostable terms, other word entries and pseudo-multiword terms that are permutations of words that contain words within words. The access vocabulary contains almost 42,000 entries that give increased access to the hierarchies in Volume 1 - Hierarchical Listing.

  1. A Vocabulary Analysis of the Restaurant Menus

    OpenAIRE

    MIHUT Silvia

    2010-01-01

    The present paper explores the genre of restaurant menus by analyzing existing online lists of breakfast, lunch and dinner options. It shows that a menu is a reflection of the restaurant itself and its vocabulary, whether formal, casual or playful, matches the restaurant concept, location or theme. In addition to providing the food and drink items, menus can also be used to offer other information to the customers. The restaurant menu vocabulary describes the owner/chef's philosophy about foo...

  2. Research on Vocabularies of Business Interpretation

    Institute of Scientific and Technical Information of China (English)

    刘杰

    2014-01-01

    With increasingly international business activities, business English has already become main language tool of commu-nication. Many new business English vocabularies emerge. If interpreters want to assume business interpretation work successfully, he or she has to learn the meaning of these words and their features in business field. This essay will do some research around vo-cabularies of business interpretation from the characteristics of these words/phrases such as more abbreviations, professional termi-nology, polysemy and so on.

  3. Student Approaches to Learning Chinese Vocabulary

    OpenAIRE

    Fu, I-Ping P.

    2005-01-01

    This research focuses on the strategies that native English speakers use as they learn to speak and write Chinese vocabulary words in the first year of an elementary Chinese class. The main research question was: what strategies do native English-speaking beginning learners of Chinese use to learn Chinese vocabulary words in their speaking and writing? The study was conducted at a medium-sized comprehensive university in the Southeastern U.S. The study drew from concepts and theories in s...

  4. An E-Portfolio to Enhance Sustainable Vocabulary Learning in English

    Science.gov (United States)

    Tanaka, Hiroya; Yonesaka, Suzanne M.; Ueno, Yukie

    2015-01-01

    Vocabulary is an area that requires foreign language learners to work independently and continuously both in and out of class. In the Japanese EFL setting, for example, more than 97% of the population experiences approximately six years of English education at secondary school during which time they are required to learn approximately 3,000 words…

  5. Word knowledge in the crowd: Measuring vocabulary size and word prevalence in a massive online experiment.

    Science.gov (United States)

    Keuleers, Emmanuel; Stevens, Michaël; Mandera, Paweł; Brysbaert, Marc

    2015-01-01

    We use the results of a large online experiment on word knowledge in Dutch to investigate variables influencing vocabulary size in a large population and to examine the effect of word prevalence-the percentage of a population knowing a word-as a measure of word occurrence. Nearly 300,000 participants were presented with about 70 word stimuli (selected from a list of 53,000 words) in an adapted lexical decision task. We identify age, education, and multilingualism as the most important factors influencing vocabulary size. The results suggest that the accumulation of vocabulary throughout life and in multiple languages mirrors the logarithmic growth of number of types with number of tokens observed in text corpora (Herdan's law). Moreover, the vocabulary that multilinguals acquire in related languages seems to increase their first language (L1) vocabulary size and outweighs the loss caused by decreased exposure to L1. In addition, we show that corpus word frequency and prevalence are complementary measures of word occurrence covering a broad range of language experiences. Prevalence is shown to be the strongest independent predictor of word processing times in the Dutch Lexicon Project, making it an important variable for psycholinguistic research.

  6. The Impact of Vocabulary Knowledge Level on EFL Reading Comprehension

    Directory of Open Access Journals (Sweden)

    Shima Kameli

    2013-01-01

    Full Text Available The present study examined the impact of vocabulary knowledge level on reading comprehension performance among EFL language learners. The ultimate intention was to determine the association between levels of vocabulary knowledge and to clarify the relationship among vocabulary knowledge on reading comprehension performance of EFL Iranian students on subtest of VLT and IELTS. Quantitative data were collected from 220 EFL Iranian adult students at the beginning of second semester of 2011 in private English language institute (BAHAR, Shiraz, Iran. The Vocabulary Levels Test (VLT and Reading Comprehension Test (IELTS were performed in one session as research instruments. The findings indicated that there were positive relationships among different levels of vocabulary test and also test scores on vocabulary size/breadth of vocabulary knowledge, and reading comprehension. Keywords: vocabulary level, vocabulary size/breadth, reading comprehension

  7. Vocabulary learning in Head Start: Nature and extent of classroom instruction and its contributions to children's learning.

    Science.gov (United States)

    Hindman, Annemarie H; Wasik, Barbara A

    2013-06-01

    In the current study, we employed the 2006 cohort of the large-scale, nationally representative, Head Start Family and Child Experiences (FACES) dataset to construct a snapshot of vocabulary instruction and learning in high-poverty preschools. Specifically, we examined Head Start teachers' reports of the frequency of vocabulary instruction in their classrooms as well as the overall quality of their classroom instruction. We also explored the teacher- and center-level factors that predicted these dual aspects of instruction, and the role of that instruction in children's vocabulary development over the preschool year. Participants included 293 teachers in 116 Head Start centers, as well as 2501 children in their classrooms. Results showed that, whereas there was notable variation, most teachers reported providing a variety of vocabulary-focused instructional activities nearly every day. The quality of their classroom instruction was generally modest. Classroom instructional quality was predictive of children's vocabulary learning, with stronger relations apparent for children with lower initial skills and for classrooms with higher quality instruction. The frequency of instruction in vocabulary was not related to children's word learning. Results provide new descriptive data about the state of vocabulary instruction in Head Start preschools and highlight both areas of success and opportunities for additional support.

  8. Investigating the Role of Pop Songs on Vocabulary Recall, Attitude and Retention of Iranian EFL Learners: The Case of Gender

    OpenAIRE

    Pouya Shakerian; Omid Rezaei; Zeinab Toghyani Murnani; Hamid Moeinmanesh

    2016-01-01

    Pop songs are, in fact, an ideal source for incidental vocabulary learning because teenagers often spend large amounts of their free time listening to music and in particular to pop songs. Employing an experimental approach, this study attempted to investigate the role of pop songs on vocabulary recall, attitude and retention of Iranian advanced adult EFL learners based on their gender. In so doing a language placement test (Quick Oxford Placement Test) was administered to 100 male and female...

  9. Vocabulary development and intervention for English learners in the early grades.

    Science.gov (United States)

    Baker, Doris Luft; Al Otaiba, Stephanie; Ortiz, Miriam; Correa, Vivian; Cole, Ron

    2014-01-01

    The purpose of this chapter is to describe the vocabulary development and promising, evidence-based vocabulary interventions for English learners (ELs) from preschool through second grade. To achieve this purpose, we have taken six steps. First, we describe the elements of language development in the native language (L1) and a second language (L2) and how these elements relate to three phases of reading development (i.e., the prereading phase, the learning to read phase, and the reading to learn phase). We contend that in order for ELs to succeed in school, they need a strong language foundation prior to entering kindergarten. This language foundation needs to continue developing during the "learning to read" and "reading to learn" phases. Second, we describe the limitations of current practice in preschool for ELs related to vocabulary instruction and to family involvement to support children's language development. Third, we report curricular challenges faced by ELs in early elementary school, and we relate these challenges to the increase in reading and language demands outlined in the Common Core State Standards (CCSS). Specific language activities that can help meet some of the demands are provided in a table. Fourth, we synthesize the research on evidence-based vocabulary instruction and intervention and discuss implications for practice with ELs. Fifth, we describe two intervention projects under development that have the potential to improve EL vocabulary and language proficiency in the early grades. We conclude with a summary of the chapter and provide additional resources on the topic.

  10. Relationships of Teachers' Language and Explicit Vocabulary Instruction to Students' Vocabulary Growth in Kindergarten

    Science.gov (United States)

    Bowne, Jocelyn Bonnes; Yoshikawa, Hirokazu; Snow, Catherine E.

    2017-01-01

    This study evaluates the relationships between aspects of Chilean teachers' explicit vocabulary instruction and students' vocabulary development in kindergarten. Classroom videotapes of whole-class instruction gathered during a randomized experimental evaluation of a coaching-based professional development program were analyzed. The amount of…

  11. A Reassessment of Frequency and Vocabulary Size in L2 Vocabulary Teaching

    Science.gov (United States)

    Schmitt, Norbert; Schmitt, Diane

    2014-01-01

    The high-frequency vocabulary of English has traditionally been thought to consist of the 2,000 most frequent word families, and low-frequency vocabulary as that beyond the 10,000 frequency level. This paper argues that these boundaries should be reassessed on pedagogic grounds. Based on a number of perspectives (including frequency and…

  12. The Effects of Techniques of Vocabulary Portfolio on L2 Vocabulary Learning

    Science.gov (United States)

    Zarei, Abbas Ali; Baftani, Fahimeh Nasiri

    2014-01-01

    To investigate the effects of different techniques of vocabulary portfolio including word map, word wizard, concept wheel, visual thesaurus, and word rose on L2 vocabulary comprehension and production, a sample of 75 female EFL learners of Kish Day Language Institute in Karaj, Iran were selected. They were in five groups and each group received…

  13. An Investigation of the Effectiveness of Vocabulary Learning Strategies on Iranian EFL Learners' Vocabulary Test Score

    Science.gov (United States)

    Rahimy, Ramin; Shams, Kiana

    2012-01-01

    This study aims to investigate the effectiveness of vocabulary learning strategies on Iranian EFL learners' vocabulary test score. To achieve this aim, fifty Intermediate level students from Kish English Institute were randomly selected from among fifteen classes after administering the Oxford Placement Test (OPT). Then, an intermediate level…

  14. EFL Learners' Vocabulary Consolidation Strategy Use and Corresponding Performance on Vocabulary Tests

    Science.gov (United States)

    Lai, Ying-Chun

    2016-01-01

    This study describes English as a Foreign Language (EFL) learners' use of vocabulary consolidation strategies and explores the connection between strategy use and vocabulary learning outcomes. This study included 218 participants who were students from five freshman English classes at a university in Taiwan. Students' self-reports on their use of…

  15. The Effect of Vocabulary Cluster on Iranian Intermediate EFL Learners' Vocabulary Achievement

    Directory of Open Access Journals (Sweden)

    Masoud KhaliliSabet

    2015-01-01

    Full Text Available This study intended to inspect the possible effects of vocabulary cluster on Iranian Intermediate EFL learners' vocabulary achievement. It was based on the comparison between semantically and thematically –related sets to find out which type of vocabulary learning cluster was more effective on learners vocabulary learning. Sixty intermediate EFL learners were selected based on their performance on OPT test and then were randomly assigned into three groups each containing 20 subjects (one control and two experimental groups. Quasi-experimental design was used in which Pre-test and post-test were administered to collect data. The researcher employed Nations word level test as the pre-test to examine the participants' initial knowledge of common words. The experimental group (A worked on thematic clustering, while experimental group (B received instruction on semantic clustering and the control group received placebo. Next, all participants took part in vocabulary size test to evaluate the vocabulary achievement of the participants. The scores obtained from pre-test and post-test were analyzed through running paired sample t-test, and one-way ANOVA. The results indicated that the experimental group (B which received semantically related sets outperformed the control group & the experimental group (A which received thematically related sets. This may have significant implications for language instructors, syllabus designers, and learners to make more advancement in vocabulary learning process through employing vocabulary cluster.

  16. The Effects of English/Language Arts Academic Vocabulary Alignment on Elementary Student Vocabulary Knowledge

    Science.gov (United States)

    Elkins, Stacey Michelle

    2012-01-01

    The purpose of this study was to provide professional development in vocabulary instructional practices and analyze the impact on student achievement. This quasi-experimental study utilized the PLC to curriculum map English/Language Arts state academic vocabulary words in K-4 into each of the four nine-weeks. The first through fourth grade…

  17. Vocabulary Learning Strategies and Vocabulary Size of ELT Students at EMU in Northern Cyprus

    Science.gov (United States)

    Kalajahi, Seyed Ali Rezvani; Pourshahian, Bahar

    2012-01-01

    This research study aimed at exploring the relationship between vocabulary learning strategies and vocabulary size of 125 undergraduate English Language Teaching students at Eastern Mediterranean University. This research study was a correlational survey study of descriptive nature. The major findings of this study were as follows. First, the…

  18. A Reassessment of Frequency and Vocabulary Size in L2 Vocabulary Teaching

    Science.gov (United States)

    Schmitt, Norbert; Schmitt, Diane

    2014-01-01

    The high-frequency vocabulary of English has traditionally been thought to consist of the 2,000 most frequent word families, and low-frequency vocabulary as that beyond the 10,000 frequency level. This paper argues that these boundaries should be reassessed on pedagogic grounds. Based on a number of perspectives (including frequency and…

  19. Using the Vocabulary Self-Collection Strategy plus to Develop University EFL Students' Vocabulary Learning

    Science.gov (United States)

    Khodary, Manal Mohamed

    2017-01-01

    This study was carried out to examine the effectiveness of using the Vocabulary Self-Collection Strategy Plus (VSSPlus) on developing university EFL students' vocabulary learning. It adopted the quasi experimental design which included two groups design. The participants were first level students at Languages and Translation Department, Arar…

  20. Improving Vocabulary Knowledge and Reading Attitudes in 4th Grade Students Through Direct Vocabulary Instruction.

    Science.gov (United States)

    Mosher, Deborah J.

    A program was designed and implemented to improve vocabulary knowledge and attitudes toward reading by focusing on direct vocabulary instruction. The targeted population consisted of 23 fourth grade students in a middle-class suburb north of Chicago. The community is very multicultural, so many of the students speak English as a second language.…

  1. Bridging the Vocabulary Gap: What the Research Tells Us about Vocabulary Instruction in Early Childhood

    Science.gov (United States)

    Christ, Tanya; Wang, X. Christine

    2010-01-01

    It is important for children to develop knowledge of words' meanings from a young age because vocabulary development has an impact on their reading comprehension and academic success as they get older. Some children come to school knowing far fewer words than others. Hart and Risley studied young children's vocabulary development and found that…

  2. Vocabulary Notebook: A Digital Solution to General and Specific Vocabulary Learning Problems in a CLIL Context

    Science.gov (United States)

    Bazo, Plácido; Rodríguez, Romén; Fumero, Dácil

    2016-01-01

    In this paper, we will introduce an innovative software platform that can be especially useful in a Content and Language Integrated Learning (CLIL) context. This tool is called Vocabulary Notebook, and has been developed to solve all the problems that traditional (paper) vocabulary notebooks have. This tool keeps focus on the personalisation of…

  3. The Effect of Using Vocabulary Flash Card on Iranian Pre-University Students' Vocabulary Knowledge

    Science.gov (United States)

    Komachali, Maryam Eslahcar; Khodareza, Mohammadreza

    2012-01-01

    The present study was conducted to investigate the effect of using vocabulary flash card on Iranian pre-university students' vocabulary knowledge. The participants of the study comprised 50 female learners. They were randomly assigned into two homogeneous groups each consisting of 25 learners. The control group received the traditional treatment…

  4. A Study on English Vocabulary Teaching Strategies of Middle School

    Institute of Scientific and Technical Information of China (English)

    付宗菊

    2014-01-01

    Vocabulary is an ele mentary component of a language, which is essential to communication and plays an important role in language learning. Therefore, how to strengthen and improve the vocabulary teaching has become one of important fields in English teaching. To some degree, whether or not the vocabulary teaching is successful will have direct effect on the quality of English teaching. In retrospect, foreign language researchers and educators have probed into vocabulary teaching theoretically and practically on the second language acquisition, linguistics, psychology, pedagogy and have obtained great accomplishment. The present paper incorporates five parts: 1) introduction, 2) English vocabulary learning strategies, 3) English vocabulary teaching principles and strategies and 4) conclusion.

  5. Skin cancer has a large impact on our public hospitals but prevention programs continue to demonstrate strong economic credentials.

    Science.gov (United States)

    Shih, Sophy T F; Carter, Rob; Heward, Sue; Sinclair, Craig

    2017-08-01

    While skin cancer is still the most common cancer in Australia, important information gaps remain. This paper addresses two gaps: i) the cost impact on public hospitals; and ii) an up-to-date assessment of economic credentials for prevention. A prevalence-based cost approach was undertaken in public hospitals in Victoria. Costs were estimated for inpatient admissions, using State service statistics, and outpatient services based on attendance at three hospitals in 2012-13. Cost-effectiveness for prevention was estimated from 'observed vs expected' analysis, together with program expenditure data. Combining inpatient and outpatient costs, total annual costs for Victoria were $48 million to $56 million. The SunSmart program is estimated to have prevented more than 43,000 skin cancers between 1988 and 2010, a net cost saving of $92 million. Skin cancer treatment in public hospitals ($9.20∼$10.39 per head/year) was 30-times current public funding in skin cancer prevention ($0.37 per head/year). At about $50 million per year for hospitals in Victoria alone, the cost burden of a largely preventable disease is substantial. Skin cancer prevention remains highly cost-effective, yet underfunded. Implications for public health: Increased funding for skin cancer prevention must be kept high on the public health agenda. Hospitals would also benefit from being able to redirect resources to non-preventable conditions. © 2017 The Authors.

  6. Engineering youth service system infrastructure: Hawaii's continued efforts at large-scale implementation through knowledge management strategies.

    Science.gov (United States)

    Nakamura, Brad J; Mueller, Charles W; Higa-McMillan, Charmaine; Okamura, Kelsie H; Chang, Jaime P; Slavin, Lesley; Shimabukuro, Scott

    2014-01-01

    Hawaii's Child and Adolescent Mental Health Division provides a unique illustration of a youth public mental health system with a long and successful history of large-scale quality improvement initiatives. Many advances are linked to flexibly organizing and applying knowledge gained from the scientific literature and move beyond installing a limited number of brand-named treatment approaches that might be directly relevant only to a small handful of system youth. This article takes a knowledge-to-action perspective and outlines five knowledge management strategies currently under way in Hawaii. Each strategy represents one component of a larger coordinated effort at engineering a service system focused on delivering both brand-named treatment approaches and complimentary strategies informed by the evidence base. The five knowledge management examples are (a) a set of modular-based professional training activities for currently practicing therapists, (b) an outreach initiative for supporting youth evidence-based practices training at Hawaii's mental health-related professional programs, (c) an effort to increase consumer knowledge of and demand for youth evidence-based practices, (d) a practice and progress agency performance feedback system, and (e) a sampling of system-level research studies focused on understanding treatment as usual. We end by outlining a small set of lessons learned and a longer term vision for embedding these efforts into the system's infrastructure.

  7. Continuous Czochralski growth: Silicon sheet growth development of the large area sheet task of the low cost silicon solar array project

    Science.gov (United States)

    Johnson, C. M.

    1980-01-01

    The growth of 100 kg of silicon single crystal material, ten cm in diameter or greater, and 150 kg of silicon single crystal material 15 cm or greater utilizing one common silicon container material (one crucible) is investigated. A crystal grower that is recharged with a new supply of polysilicon material while still under vacuum and at temperatures above the melting point of silicon is developed. It accepts large polysilicon charges up to 30 kg, grows large crystal ingots (to 15 cm diameter and 25 kg in weight), and holds polysilicon material for recharging (rod or lump) while, at the same time, growing crystal ingots. Special equipment is designed to recharge polysilicon rods, recharge polysilicon lumps, and handle and store large, hot silicon crystal ingots. Many continuous crystal growth runs were performed lasting as long as 109 hours and producing as many as ten crystal ingots, 15 cm with weights progressing to 27 kg.

  8. Large Crustal Velocities During a Short Lived Seismic Swarm Evidenced From Continuous GPS Observations in Aysen, Southern Chile.

    Science.gov (United States)

    Bataille, K.; Baez, J. C.; Contreras, M.; Agurto, H.; Barrientos, S.; Vigny, C.; Klotz, J.

    2008-05-01

    The Aysen seismic swarm began on January 22, 2007, with a large number of events up to magnitud 6.2 during a period of several months. We recorded this sequence with 4 permanent GPS stations before the main event, and with 10 GPS stations afterwards. All the GPS observations were processed with Bernese GPS software version 5.0. Stations from the regional and global IGS network were included during the process to realize the same reference frame for each day. Daily solutions were obtained to generate time series, from which local velocity fields with the following features were extracted: (1) During the first three weeks of observations, remarkable features were obtained from four stations, namely: horizontal velocities were very high, varying between 15 and 70 cm/year; and the direction of displacements favoured a strike-slip rather than tensional faulting; (2) An event of M=5.5 occurred on April 2, 2007 producing a co-seismic displacement of 8.2 cm at station TORG. Following this event, velocities increased during three weeks: at station TORG from 30 to 45 cm/year; at station PCOE from 29 to 83 cm/year, until a M=6.2 event occurred on 21 April 2007. Unfortunately, this event triggered a landslide reaching the fiord which generated a tsunami destroying all but TORG's site; (3) The M=6.2 event produced a co- seismic displacement of 12 cm at station TORG, with similar direction as observed prior to the event. The moment tensors obtained by NEIC and Harvard are consistent with the deformation field observed with GPS prior to the event; (4) The following two weeks after the main event, the velocity field decreased at TORG from 45 to 26 cm/year, corresponding to values slightly lower than those observed during the first weeks; (5) A set of new stations were installed after the M=6.2 event. The sites located on the Aysen fiord showed a continous decrease of the velocity, until current values which are considered normal for such an environment. These observations are

  9. Linked Vocabulary API for the Earth Sciences Community

    Science.gov (United States)

    Zednik, S.; Fox, P. A.; Fu, L.; West, P.; Ma, X.

    2014-12-01

    The Linked Vocabulary API is a specification for publishing RESTful APIs of vocabularies represented in the Simple Knowledge Organization System (SKOS) as Linked Data on the web. This work began as part of the Coastal and Marine Spatial Planning Vocabularies (CMSPV) project in response to the need for a standard manner for agencies to publish and consume hierarchical vocabularies on the web. The RESTful architecture of the API provides a simple mechanism for consumption of full vocabularies, single vocabulary terms, related terms, and searches on terms. The Linked Data nature of the API promotes interoperability by exposing vocabulary resources as resolvable URIs that may be referenced from other vocabularies or sources of Linked Data and by allowing the published vocabulary to contain references as links to terms from other vocabularies. The Linked Vocabulary API is formally defined in a Linked Data API specification and may be deployed using standard implementations of the Linked Data API such as the Epimorphics Linked Data API (ELDA). Recent presentations of work done with the Linked Vocabulary API as part of the CMSPV project have resulted in the API receiving growing interest from the broader scientific community. In this contribution we present the Linked Vocabulary API design and deployment process.

  10. The relationship between vocabulary knowledge and the reading and science achievement of fifth-grade students

    Science.gov (United States)

    Montgomery, Jennifer Dawn

    The purpose of the study was to examine the relationship between vocabulary knowledge and the reading and science achievement of fifth-grade students. Models were developed and tested using multiple linear regression (MLR) to determine whether vocabulary knowledge is a statistically significant predictor of reading and science. A model was tested for reading achievement, and a model was tested for science achievement. Other independent variables in the models included socioeconomic status, ethnicity, gender, status as an English-language learner, status as a special education student, classification as gifted/talented, history of retention, and migrant status. Archival data from fifth-grade students in a large, urban public school district were used in the analyses. Both models were found to be statistically significant (p vocabulary was a statistically significant predictor for both reading achievement (B = .571, p vocabulary to reading achievement confirmed past research. The role of reading vocabulary in science achievement revealed a significant, if modest, relationship. In addition, findings pointed out the significance of variables such as history of retention, gender, and status as an English-language learner. Conclusions from the study, pedagogical implications, and recommendations for future research are discussed.

  11. Continuous Czochralski growth: Silicon sheet growth development of the large area silicon sheet task of the Low Cost Silicon Solar Array project

    Science.gov (United States)

    1978-01-01

    The primary objective of this contract is to develop equipment and methods for the economic production of single crystal ingot material by the continuous Czochralski (CZ) process. Continuous CZ is defined for the purpose of this work as the growth of at least 100 kilograms of ingot from only one melt container. During the reporting period (October, 1977 - September, 1978), a modified grower was made fully functional and several recharge runs were performed. The largest run lasted 44 hours and over 42 kg of ingot was produced. Little, if any, degradation in efficiency was observed as a result of pulling multiple crystals from one crucible. Solar efficiencies observed were between 9.3 and 10.4% AMO (13.0 and 14.6% AMI) compared to 10.5% (14.7% AMI) for optimum CZ material control samples. Using the SAMICS/IPEG format, economic analysis of continuous CZ suggests that 1986 DoE cost goals can only be met by the growth of large diameter, large mass crystals.

  12. Establishing a Common Vocabulary of Key Concepts for the Effective Implementation of Applied Behavior Analysis

    Directory of Open Access Journals (Sweden)

    Traci M. CIHON

    2016-12-01

    Full Text Available The technical language of behavior analysis is arguably necessary to share ideas and research with precision among each other. However, it can hinder effective implementation of behavior analytic techniques when it prevents clear communication between the supervising behavior analyst and behavior technicians. The present paper provides a case example of the development of a shared vocabulary, using plain English when possible, among supervisors and supervisees at a large public school district in which behavior analytic services were provided for children diagnosed with autism spectrum disorders. A list of terms and definitions are provided as well as suggestions on how to develop shared vocabularies within the readers’ own service provision context.

  13. Does input influence uptake? Links between maternal talk, processing speed and vocabulary size in Spanish-learning children.

    Science.gov (United States)

    Hurtado, Nereyda; Marchman, Virginia A; Fernald, Anne

    2008-11-01

    It is well established that variation in caregivers' speech is associated with language outcomes, yet little is known about the learning principles that mediate these effects. This longitudinal study (n = 27) explores whether Spanish-learning children's early experiences with language predict efficiency in real-time comprehension and vocabulary learning. Measures of mothers' speech at 18 months were examined in relation to children's speech processing efficiency and reported vocabulary at 18 and 24 months. Children of mothers who provided more input at 18 months knew more words and were faster in word recognition at 24 months. Moreover, multiple regression analyses indicated that the influences of caregiver speech on speed of word recognition and vocabulary were largely overlapping. This study provides the first evidence that input shapes children's lexical processing efficiency and that vocabulary growth and increasing facility in spoken word comprehension work together to support the uptake of the information that rich input affords the young language learner.

  14. Vocabulary Learning Strategies in an ESP Context

    Directory of Open Access Journals (Sweden)

    Violeta Jurkovič

    2015-11-01

    Full Text Available The paper focuses on vocabulary learning strategies as a subcategory of language learning strategies and their instruction within the ESP context at the Faculty of Maritime Studies and Transport in Portorož. Vocabulary strategy instruction will be implemented at our faculty as part of a broader PhD research into the effect of language learning strategy instruction on strategy use and subject-specific and general language acquisition. Additional variables that will be taken into consideration are language proficiency, motivation and learning styles of the students. The introductory section in which the situation that triggered my PhD research is presented is followed by a theoretical introduction to the concept of language and vocabulary learning strategies. The aspects that the paper focuses on are the central role of lexis within ESP, vocabulary learning strategy taxonomies, and the presentation of research studies made in the examined field to date. The final section presents the explicit vocabulary learning strategy instruction model. In the conclusion, some implications for teaching can be found.

  15. LEARNING VOCABULARY THROUGH COLOURFUL PUZZLE GAME

    Directory of Open Access Journals (Sweden)

    Risca Dwiaryanti

    2014-05-01

    Full Text Available Vocabulary plays an important role because it links to the four skills of listening, speaking, reading, and writing. Those aspects should be integrated in teaching and learning process of English. However, the students must be able to know the meaning of each word or vocabulary of English in order to master the four skills. It is as a mean to create a sentence in daily communication to show someone’s feeling, opinion, idea, desire, etc. So that, both speakers understand what the other speaker mean. However, English as a second language in Indonesia seems very hard for the students to master vocabulary of English. It makes them not easy to be understood directly and speak fluently. The students, sometimes, get difficulties in understanding, memorizing the meaning of the vocabulary, and getting confused in using the new words. There must be an effective strategy to attract students’ interest, break the boredom, and make the class more lively. Based on the writer experience, Colourful Puzzle Game is able to make the students learn vocabulary quickly. It needs teacher’s creativity to create the materials of this game based on the class condition. The teacher just need a game board made from colourful papers, write any command and prohibition words on it. A dice is a tool to decide where the player should stop based on the number. Some pins as counter as sign of each player.

  16. When a text is translated does the complexity of its vocabulary change? Translations and target readerships.

    Directory of Open Access Journals (Sweden)

    Hênio Henrique Aragão Rêgo

    Full Text Available In linguistic studies, the academic level of the vocabulary in a text can be described in terms of statistical physics by using a "temperature" concept related to the text's word-frequency distribution. We propose a "comparative thermo-linguistic" technique to analyze the vocabulary of a text to determine its academic level and its target readership in any given language. We apply this technique to a large number of books by several authors and examine how the vocabulary of a text changes when it is translated from one language to another. Unlike the uniform results produced using the Zipf law, using our "word energy" distribution technique we find variations in the power-law behavior. We also examine some common features that span across languages and identify some intriguing questions concerning how to determine when a text is suitable for its intended readership.

  17. Vocabulary Growth and Reading Development across the Elementary School Years

    NARCIS (Netherlands)

    Verhoeven, L.T.W.; Leeuwe, J.F.J. van; Vermeer, A.R.

    2011-01-01

    The associations between vocabulary growth and reading development were examined longitudinally for a representative sample of Dutch children throughout the elementary school period. Data on basic and advanced vocabulary, word decoding, and reading comprehension were collected across the different

  18. Vocabulary – semantics – consciousness: scientific-analitical review

    Directory of Open Access Journals (Sweden)

    Olga V. Telegina

    2011-03-01

    Full Text Available The article studies relations between vocabulary, words meaning, conceptualization process, thinking, consciousness. Consciousness strategies detection necessitates study of mental vocabulary, expressing mental activity state and processes.

  19. English Vocabulary Teaching Based on learners’Acquisition

    Institute of Scientific and Technical Information of China (English)

    朱文会

    2013-01-01

    Vocabulary is very important in language study, but it is not easy for students to learn efficiently. This essay first has a deep insight into the acquisition by learners, and then gives some ideas about teaching vocabulary in ELT classroom.

  20. Vocabulary Growth and Reading Development across the Elementary School Years

    NARCIS (Netherlands)

    Verhoeven, L.T.W.; Leeuwe, J.F.J. van; Vermeer, A.R.

    2011-01-01

    The associations between vocabulary growth and reading development were examined longitudinally for a representative sample of Dutch children throughout the elementary school period. Data on basic and advanced vocabulary, word decoding, and reading comprehension were collected across the different g

  1. Elementary Preservice Teachers' Science Vocabulary: Knowledge and Application

    Science.gov (United States)

    Carrier, Sarah J.

    2013-03-01

    Science vocabulary knowledge plays a role in understanding science concepts, and science knowledge is measured in part by correct use of science vocabulary (Lee et al. in J Res Sci Teach 32(8):797-816, 1995). Elementary school students have growing vocabularies and many are learning English as a secondary language or depend on schools to learn academic English. Teachers must have a clear understanding of science vocabulary in order to communicate and evaluate these understandings with students. The present study measured preservice teachers' vocabulary knowledge during a science methods course and documented their use of science vocabulary during peer teaching. The data indicate that the course positively impacted the preservice teachers' knowledge of select elementary science vocabulary; however, use of science terms was inconsistent in microteaching lessons. Recommendations include providing multiple vocabulary instruction strategies in teacher preparation.

  2. Is There a Core Vocabulary? Some Implications for Language Teaching.

    Science.gov (United States)

    Carter, Ronald

    1987-01-01

    Describes a set of criteria for selection of core vocabulary, with examples given from English. Suggests applications for such a vocabulary in grading reading materials and analyzing stylistics. (LMO)

  3. Pause and Utterance Duration in Child-Directed Speech in Relation to Child Vocabulary Size

    Science.gov (United States)

    Marklund, Ulrika; Marklund, Ellen; Lacerda, Francisco; Schwarz, Iris-Corinna

    2015-01-01

    This study compares parental pause and utterance duration in conversations with Swedish speaking children at age 1;6 who have either a large, typical, or small expressive vocabulary, as measured by the Swedish version of the McArthur-Bates CDI. The adjustments that parents do when they speak to children are similar across all three vocabulary…

  4. The Role of Home Literacy Environment in Toddlerhood in Development of Vocabulary and Decoding Skills

    Science.gov (United States)

    Kim, Sojung; Im, Haesung; Kwon, Kyong-Ah

    2015-01-01

    Background: Little empirical research examines the process in which home literacy environment (HLE) in toddlerhood is associated with preschoolers' vocabulary and decoding skills using a large-scale dataset. Objective: The purposes of the current study were to (a) examine the differential effect of HLE in toddlerhood on preschoolers' vocabulary…

  5. Pause and Utterance Duration in Child-Directed Speech in Relation to Child Vocabulary Size

    Science.gov (United States)

    Marklund, Ulrika; Marklund, Ellen; Lacerda, Francisco; Schwarz, Iris-Corinna

    2015-01-01

    This study compares parental pause and utterance duration in conversations with Swedish speaking children at age 1;6 who have either a large, typical, or small expressive vocabulary, as measured by the Swedish version of the McArthur-Bates CDI. The adjustments that parents do when they speak to children are similar across all three vocabulary…

  6. Personalized Mobile English Vocabulary Learning System Based on Item Response Theory and Learning Memory Cycle

    Science.gov (United States)

    Chen, C. M.; Chung, C. J.

    2008-01-01

    Since learning English is very popular in non-English speaking countries, developing modern assisted-learning tools that support effective English learning is a critical issue in the English-language education field. Learning English involves memorization and practice of a large number of vocabulary words and numerous grammatical structures.…

  7. Lexical Development in Korean: Vocabulary Size, Lexical Composition, and Late Talking

    Science.gov (United States)

    Rescorla, Leslie; Lee, Youn Mi Cathy; Oh, Kyung Ja; Kim, Young Ah

    2013-01-01

    Purpose: In this study, the authors aimed to compare vocabulary size, lexical composition, and late talking in large samples of Korean and U.S. children ages 18-35 months. Method: Data for 2,191 Korean children (211 children recruited "offline" through preschools, and 1,980 recruited "online" via the Internet) and 274 U.S.…

  8. The Students’ Interest on the Use of Vocabulary Self-Collection Strategy in Learning English Vocabulary

    Directory of Open Access Journals (Sweden)

    Syayyidina Ali

    2017-08-01

    Full Text Available The learning should be supported by an interesting strategy to make students enjoyable and interested in learning, as well as in learning English Vocabulary. The aim of this research is to investigate and describe the students’ perceptions on the use of vocabulary self-collection strategy in Learning English vocabulary. This study was a descriptive model consisting of 37 subject-students. The data were collected with a questionnaire, it was rating scale which distributed after 8 meetings of treatments, and it covered 15 positive and closed statements about the use of vocabulary self-collection strategy in learning vocabulary classroom. The questionnaire was analyzed based on the percentage of each answer. To calculate questionnaire data into percentage, the researcher used the formula where the number of frequency is multiplied to 100% then divided to the number of the total respondents. The result of the students’ perceptions indicated that vocabulary self-collection strategy is interesting strategy used in learning vocabulary classroom. The highest rank of the mean score is 56.6% of agree students, 35.5% of strongly agree students, 6.7% of undecided students, 0.7% of disagree students, and 0.2% of strongly disagree to the statements on the questionnaire.

  9. Motivating Students to Learn Biology Vocabulary with Wikipedia

    Directory of Open Access Journals (Sweden)

    Boriana Marintcheva

    2012-02-01

    Full Text Available Timely learning of specialized science vocabulary is critical for building a solid knowledge base in any scientific discipline. To motivate students to dedicate time and effort mastering biology vocabulary, I have designed a vocabulary exercise utilizing the popular web encyclopedia Wikipedia. The exercise creates an opportunity for students to connect the challenge of vocabulary learning to a prior positive experience of self-guided learning using a content source they are familiar and comfortable with.

  10. Phonetic search methods for large speech databases

    CERN Document Server

    Moyal, Ami; Tetariy, Ella; Gishri, Michal

    2013-01-01

    “Phonetic Search Methods for Large Databases” focuses on Keyword Spotting (KWS) within large speech databases. The brief will begin by outlining the challenges associated with Keyword Spotting within large speech databases using dynamic keyword vocabularies. It will then continue by highlighting the various market segments in need of KWS solutions, as well as, the specific requirements of each market segment. The work also includes a detailed description of the complexity of the task and the different methods that are used, including the advantages and disadvantages of each method and an in-depth comparison. The main focus will be on the Phonetic Search method and its efficient implementation. This will include a literature review of the various methods used for the efficient implementation of Phonetic Search Keyword Spotting, with an emphasis on the authors’ own research which entails a comparative analysis of the Phonetic Search method which includes algorithmic details. This brief is useful for resea...

  11. Large deflections of non-prismatic nonlinearly elastic cantilever beams subjected to non-uniform continuous load and a concentrated load at the free end

    Institute of Scientific and Technical Information of China (English)

    Miha Brojan; Matjaz Cebron; Franc Kosel

    2012-01-01

    This work studies large deflections of slender,non-prismatic cantilever beams subjected to a combined loading which consists of a non-uniformly distributed continuous load and a concentrated load at the free end of the beam.The material of the cantilever is assumed to be nonlinearly elastic.Different nonlinear relations between stress and strain in tensile and compressive domain are considered.The accuracy of numerical solutions is evaluated by comparing them with results from previous studies and with a laboratory experiment.

  12. Vocabulary Knowledge of Deaf and Hearing Postsecondary Students

    Science.gov (United States)

    Sarchet, Thomastine; Marschark, Marc; Borgna, Georgianna; Convertino, Carol; Sapere, Patricia; Dirmyer, Richard

    2014-01-01

    Deaf children generally are found to have smaller English vocabularies than hearing peers, although studies involving children with cochlear implants have suggested that the gap may decrease or disappear with age. Less is known about the vocabularies of deaf and hard-of-hearing (DHH) postsecondary students or how their vocabulary knowledge relates…

  13. An Analysis of Output on English Vocabulary Acquisition

    Institute of Scientific and Technical Information of China (English)

    曾娅妮

    2014-01-01

    Output Hypothesis was proposed by Swain in 1985, her Output Hypothesis is regarded as the most important and in-fluential one. However, few studies research and analyze the effect of output on vocabulary acquisition. The findings of this study suggest the importance of output in vocabulary acquisition. Furthermore, in the interactive mode output can help learners acquire vocabulary.

  14. Information and documentation - Thesauri and interoperability with other vocabularies

    DEFF Research Database (Denmark)

    Lykke, Marianne; Dalbin, Sylvie; Smedt, Johan De

    ISO 25964-2:2013 is applicable to thesauri and other types of vocabulary that are commonly used for information retrieval. It describes, compares and contrasts the elements and features of these vocabularies that are implicated when interoperability is needed. It gives recommendations...... for the establishment and maintenance of mappings between multiple thesauri, or between thesauri and other types of vocabularies....

  15. The Effects of Vocabulary Breadth and Depth on English Reading

    Science.gov (United States)

    Li, Miao; Kirby, John R.

    2015-01-01

    This study explored the relationship between two dimensions of vocabulary knowledge, that is, breadth of vocabulary (the number of words known) and depth of vocabulary (the richness of word knowledge), and their effects on different aspects of English reading in Chinese high school students learning English as a second language. Two hundred and…

  16. What's This New Emphasis on Vocabulary All about?

    Science.gov (United States)

    Shanklin, Nancy

    2007-01-01

    Many teachers, especially novice teachers, believe that teaching vocabulary is among their easier duties, but Shanklin makes a convincing argument that high-quality vocabulary teaching requires thoughtful preparation. Here she offers several sound techniques for engaging students with vocabulary in meaningful ways.

  17. Using Lemony Snicket to Bring Smiles to Your Vocabulary Lessons

    Science.gov (United States)

    Arter, Lisa Maxwell; Nilsen, Alleen Pace

    2009-01-01

    Vocabulary instruction is addressed on two levels in this article: 1) the importance of direct teaching and 2) using the books of a popular children's series as examples to support these vocabulary lessons. Also addressed are specific methods of turning classrooms into places where vocabulary instruction is effective and enjoyable. Elements of…

  18. Online Independent Vocabulary Learning Experience of Hong Kong University Students

    Science.gov (United States)

    Tang, Eunice; Chung, Edsoulla; Li, Eddy; Yeung, Steven

    2016-01-01

    In response to the limited vocabulary size of its undergraduates, an independent vocabulary learning platform, VLearn was designed and launched in a university in Hong Kong. As an e-learning environment that supports self-directed vocabulary learning of Chinese learners, the primary aim of VLearn is to equip users with appropriate knowledge and…

  19. Processing Academic Language through Four Corners Vocabulary Chart Applications

    Science.gov (United States)

    Smith, Sarah; Sanchez, Claudia; Betty, Sharon; Davis, Shiloh

    2016-01-01

    4 Corners Vocabulary Charts (FCVCs) are explored as a multipurpose vehicle for processing academic language in a 5th-grade classroom. FCVCs typically display a vocabulary word, an illustration of the word, synonyms associated with the word, a sentence using a given vocabulary word, and a definition of the term in students' words. The use of…

  20. The Effects of Vocabulary Breadth and Depth on English Reading

    Science.gov (United States)

    Li, Miao; Kirby, John R.

    2015-01-01

    This study explored the relationship between two dimensions of vocabulary knowledge, that is, breadth of vocabulary (the number of words known) and depth of vocabulary (the richness of word knowledge), and their effects on different aspects of English reading in Chinese high school students learning English as a second language. Two hundred and…

  1. Using PDA for Undergraduate Student Incidental Vocabulary Testing

    Science.gov (United States)

    Song, Yanjie; Fox, Robert

    2008-01-01

    Recent studies have explored English vocabulary learning in environments where students used mobile technologies for prescribed vocabulary learning tasks, or tested designed personalized learning systems to enhance student vocabulary learning for short periods of time in language related courses. Dictionary use via mobile devices has mostly been…

  2. The Influence of Electronic Dictionaries on Vocabulary Knowledge Extension

    Science.gov (United States)

    Rezaei, Mojtaba; Davoudi, Mohammad

    2016-01-01

    Vocabulary learning needs special strategies in language learning process. The use of dictionaries is a great help in vocabulary learning and nowadays the emergence of electronic dictionaries has added a new and valuable resource for vocabulary learning. The present study aims to explore the influence of Electronic Dictionaries (ED) Vs. Paper…

  3. The Impact of Attrition on Vocabulary Knowledge among Saudi Teachers

    Science.gov (United States)

    Alharthi, Thamer

    2014-01-01

    This two-year longitudinal study tracks the extent of vocabulary attrition among Arabic-speaking English graduate teachers. Data were collected through pre-post tests of receptive and productive vocabulary knowledge. The results showed drastic attrition in vocabulary knowledge soon after the end of formal instruction followed by slight gain,…

  4. ELL Preschoolers' English Vocabulary Acquisition from Storybook Reading

    Science.gov (United States)

    Collins, Molly F.

    2010-01-01

    This study investigates the effects of rich explanation, baseline vocabulary, and home reading practices on English language learning (ELL) preschoolers' sophisticated vocabulary learning from storybook reading. Eighty typically developing preschoolers were pretested in L1 (Portuguese) and L2 (English) receptive vocabulary and were assigned to…

  5. Discussion on English Vocabulary Teaching in Higher Vocational College

    Institute of Scientific and Technical Information of China (English)

    陈蓉

    2012-01-01

    Mastering vocabulary is one of the key factors for learning a language. Therefore, how to teach and help students acquire vocabulary is worth researching for every English teacher. This paper mainly provides some effective ways of teaching vocabulary and discusses how to implement these methods in higher vocational English teaching.

  6. Elementary Preservice Teachers' Science Vocabulary: Knowledge and Application

    Science.gov (United States)

    Carrier, Sarah J.

    2013-01-01

    Science vocabulary knowledge plays a role in understanding science concepts, and science knowledge is measured in part by correct use of science vocabulary (Lee et al. in "J Res Sci Teach" 32(8):797-816, 1995). Elementary school students have growing vocabularies and many are learning English as a secondary language or depend on schools to learn…

  7. Application of Error Analysis in English Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    WEI Qing-jie

    2015-01-01

    Vocabulary is an indispensable part of language and is of vital importance for second language learners. Students make form, collocation and ambiguous errors in English vocabulary acquisition. This thesis attempts to analyze errors in students ’Eng⁃lish vocabulary acquisition based on error analysis, give the reasons and further put up some teaching approaches to lessen or avoid errors.

  8. Vocabulary Mining for Information Retrieval: Rough Sets and Fuzzy Sets.

    Science.gov (United States)

    Srinivasan, Padmini; Ruiz, Miguel E.; Kraft, Donald H.; Chen, Jianhua

    2001-01-01

    Explains vocabulary mining in information retrieval and describes a framework for vocabulary mining that allows the use of rough set-based approximations even when documents and queries are described using weighted, or fuzzy, representations. Examines coordination between multiple vocabulary views and applies the framework to the Unified Medical…

  9. The Creation and Validation of a Listening Vocabulary Levels Test

    Science.gov (United States)

    McLean, Stuart; Kramer, Brandon; Beglar, David

    2015-01-01

    An important gap in the field of second language vocabulary assessment concerns the lack of validated tests measuring aural vocabulary knowledge. The primary purpose of this study is to introduce and provide preliminary validity evidence for the Listening Vocabulary Levels Test (LVLT), which has been designed as a diagnostic tool to measure…

  10. Genetic and Environmental Influences on Vocabulary and Reading Development

    Science.gov (United States)

    Olson, Richard K.; Keenan, Janice M.; Byrne, Brian; Samuelsson, Stefan; Coventry, William L.; Corley, Robin; Wadsworth, Sally J.; Willcutt, Erik G.; DeFries, John C.; Pennington, Bruce F.; Hulslander, Jacqueline

    2011-01-01

    Genetic and environmental relations between vocabulary and reading skills were explored longitudinally from preschool through Grades 2 and 4. At preschool there were strong shared-environment and weak genetic influences on both vocabulary and print knowledge but substantial differences in their source. Separation of etiology for vocabulary and…

  11. The Role of Vocabulary in ESP Teaching and Leafing

    Institute of Scientific and Technical Information of China (English)

    Wujiangwen; WangBinbin

    2004-01-01

    It's known to most second language learners that the acquisition of vocabulary is a fundamental and important component in the course of their learning. A good mastery of vocabulary is essential for ESL/EFL learners, especially for those who learn for specific purposes or expect to operate at an advanced level in English. 'It is wise to direct vocabulary

  12. Vocabulary and Health Care Information Technology: State of the Art.

    Science.gov (United States)

    Cimino, James J.

    1995-01-01

    Reviews the controlled medical vocabularies available today and some of the reasons why they have failed to meet the needs of application developers. Topics include standard vocabularies, including International Classification of Diseases and Medical Subject Headings; uses of vocabularies in medical computing; current research; and remaining…

  13. In Search of Introductory Psychology's Classic Core Vocabulary.

    Science.gov (United States)

    Griggs, Richard A.; Mitchell, Montserrat C.

    2002-01-01

    Examines whether there was a common vocabulary present within introductory psychology textbooks during the 1950s and if a classic core vocabulary exists. Reports that no common core existed in the textbooks during the 1950s, but there is a set of 100 classic vocabulary terms. (CMK)

  14. The Effectiveness of a Supplemental Pre-Kindergarten Vocabulary Intervention

    Science.gov (United States)

    Kong, Na Young

    2013-01-01

    Oral vocabulary is a strong predictor of young children's later reading development. Many children enter kindergarten with weak vocabulary knowledge and could benefit from an extra level or higher tier of intentional instruction in vocabulary that supplements the Tier 1 core curriculum in language. Recent findings from research developing a…

  15. Teaching Vocabulary through Poetry in an EFL Classroom

    Science.gov (United States)

    Ozen, Baki; Mohammadzadeh, Behbood

    2012-01-01

    This study has been conducted to investigate the effectiveness of using poetry to teach vocabulary in a foreign language classroom. It aims to find answers to two research questions (1) "Do the learners enhance more extensive vocabulary knowledge by means of poetry-based vocabulary teaching activities than the traditional coursebook…

  16. Sign language vocabulary development practices and internet use among educational interpreters.

    Science.gov (United States)

    Storey, Brian C; Jamieson, Janet R

    2004-01-01

    Sign language interpreters working in schools often face isolation in terms of their sign language vocabulary development opportunities. The purposes of this study were to determine the key demographic characteristics of educational interpreters in British Columbia, to identify the resources they use to learn new vocabulary, and to shed light on their Internet use and access levels, with a view to exploring the viability of this resource as a tool for vocabulary development for interpreters working in educational settings. Key demographics associated with interpreters' access to time and materials in advance of a lesson were job title and graduation from an interpreter training program. Interpreters with job titles that reflected their status as interpreters had more preparatory time each week than interpreters who had job titles focused on their roles as educational assistants. Interpreters overwhelmingly expressed the need for continuing professional development with respect to vocabulary development. In terms of the resources currently used, human resources (colleagues, deaf adults) were used significantly more often than nonhuman (books, videotapes, Internet). The resource use results showed that convenience was more important than quality. Books were used more often than videotapes, CD-ROMs, and the Internet, although the latter three had higher percentages of very satisfied users than did books. The design and content of online vocabulary resources and limited interpreter preparation time were identified as current issues keeping the Internet from reaching its potential as an easily accessible visual resource. Recommendations aimed at enhancing the viability of the Internet as a vocabulary development tool for educational interpreters are discussed.

  17. Vocabulary of interconnections. Vocabulaire des interconnexions

    Energy Technology Data Exchange (ETDEWEB)

    1990-03-01

    A French vocabulary of terms used in the field of interconnection of electric power systems, is provided in order to standardize terminology at Hydro-Quebec. The vocabulary encompasses many subfields directly or indirectly related to interconnections, such as overhead lines, load forecasting, network operation, and interconnection contracts and conventions. International French terminology is adopted throughout, except for specifically North American realities for which new terms have been proposed. English equivalents of terms are provided for informative purposes and are not standardized. An index of the English terms is included. 128 refs.

  18. Vocabulary learning : A study of students’ and teachers' attitudes towards English vocabulary learning in lower secondary school

    OpenAIRE

    Larsson, Therese

    2014-01-01

    The aim of this paper was to investigate student and teacher attitudes towards English vocabulary learning and teaching. Secondary aims were to find out how a number of students learn new vocabulary and whether teachers prefer explicit or implicit teaching methods. The investigation was conducted by letting 75 students in two lower secondary schools and 24 teachers of English from different schools answer questionnaires about vocabulary learning and vocabulary teaching. The results show that ...

  19. Electro-spray deposition of a mesoporous TiO2 charge collection layer: toward large scale and continuous production of high efficiency perovskite solar cells.

    Science.gov (United States)

    Kim, Min-cheol; Kim, Byeong Jo; Yoon, Jungjin; Lee, Jin-wook; Suh, Dongchul; Park, Nam-gyu; Choi, Mansoo; Jung, Hyun Suk

    2015-12-28

    The spin-coating method, which is widely used for thin film device fabrication, is incapable of large-area deposition or being performed continuously. In perovskite hybrid solar cells using CH(3)NH(3)PbI(3) (MAPbI(3)), large-area deposition is essential for their potential use in mass production. Prior to replacing all the spin-coating process for fabrication of perovskite solar cells, herein, a mesoporous TiO(2) electron-collection layer is fabricated by using the electro-spray deposition (ESD) system. Moreover, impedance spectroscopy and transient photocurrent and photovoltage measurements reveal that the electro-sprayed mesoscopic TiO(2) film facilitates charge collection from the perovskite. The series resistance of the perovskite solar cell is also reduced owing to the highly porous nature of, and the low density of point defects in, the film. An optimized power conversion efficiency of 15.11% is achieved under an illumination of 1 sun; this efficiency is higher than that (13.67%) of the perovskite solar cell with the conventional spin-coated TiO(2) films. Furthermore, the large-area coating capability of the ESD process is verified through the coating of uniform 10 × 10 cm(2) TiO(2) films. This study clearly shows that ESD constitutes therefore a viable alternative for the fabrication of high-throughput, large-area perovskite solar cells.

  20. The Role of Primary Caregiver Vocabulary Knowledge in the Development of Bilingual Children's Vocabulary Skills

    Science.gov (United States)

    Buac, Milijana; Gross, Megan; Kaushanskaya, Margarita

    2014-01-01

    Purpose: The present study examined the impact of environmental factors (socioeconomic status [SES], the percent of language exposure to English and to Spanish, and primary caregivers' vocabulary knowledge) on bilingual children's vocabulary skills. Method: Vocabulary skills were measured in 58 bilingual children between the ages of 5…

  1. The Effect of Vocabulary Self-Selection Strategy and Input Enhancement Strategy on the Vocabulary Knowledge of Iranian EFL Learners

    Science.gov (United States)

    Masoudi, Golfam

    2017-01-01

    The present study was designed to investigate empirically the effect of Vocabulary Self-Selection strategy and Input Enhancement strategy on the vocabulary knowledge of Iranian EFL Learners. After taking a diagnostic pretest, both experimental groups enrolled in two classes. Learners who practiced Vocabulary Self-Selection were allowed to…

  2. The Effect of Teaching Vocabulary through Semantic Mapping on EFL Learners' Awareness of the Affective Dimensions of Deep Vocabulary Knowledge

    Science.gov (United States)

    Nilforoushan, Somayeh

    2012-01-01

    This study focused on the effect of teaching vocabulary through semantic mapping on the awareness of two affective dimensions, evaluation and potency dimensions of deep vocabulary knowledge as well as the general vocabulary knowledge of EFL students. Sixty intermediate EFL female adult learners participated in this study; they were chosen among 90…

  3. Early vocabulary development in children with bilateral cochlear implants.

    Science.gov (United States)

    Välimaa, Taina; Kunnari, Sari; Laukkanen-Nevala, Päivi; Lonka, Eila

    2017-06-16

    Children with unilateral cochlear implants (CIs) may have delayed vocabulary development for an extended period after implantation. Bilateral cochlear implantation is reported to be associated with improved sound localization and enhanced speech perception in noise. This study proposed that bilateral implantation might also promote early vocabulary development. Knowledge regarding vocabulary growth and composition in children with bilateral CIs and factors associated with it may lead to improvements in the content of early speech and language intervention and family counselling. To analyse the growth of early vocabulary and its composition during the first year after CI activation and to investigate factors associated with vocabulary growth. The participants were 20 children with bilateral CIs (12 boys; eight girls; mean age at CI activation = 12.9 months). Vocabulary size was assessed with the Finnish version of the MacArthur Communicative Development Inventories (CDI) Infant Form and compared with normative data. Vocabulary composition was analysed in relation to vocabulary size. Growth curve modelling was implemented using a linear mixed model to analyse the effects of the following variables on early vocabulary growth: time, gender, maternal education, residual hearing with hearing aids, age at first hearing aid fitting and age at CI activation. Despite clear vocabulary growth over time, children with bilateral CIs lagged behind their age norms in receptive vocabulary during the first 12 months after CI activation. In expressive vocabulary, 35% of the children were able to catch up with their age norms, but 55% of the children lagged behind them. In receptive and expressive vocabularies of 1-20 words, analysis of different semantic categories indicated that social terms constituted the highest proportion. Nouns constituted the highest proportion in vocabularies of 101-400 words. The proportion of verbs remained below 20% and the proportion of function words and

  4. Research on English vocabulary teaching based on frequency

    Directory of Open Access Journals (Sweden)

    Ying Shi

    2017-02-01

    Full Text Available The key to accurately grasp the semantics in the context is to grasp the vocabularies. Only mastering a lot of vocabularies, many methods will be available in the process of English vocabulary learning and memory, of which English vocabulary teaching based on frequency gradually becomes an English vocabulary learning method recognized by everyone. In English teaching process, this paper makes the current English learning form a more systematic and comprehensive context theory through the questionnaires and application for English context and frequency method in English teaching process, thus proposing a feasible teaching method for the overall grasp of English language.

  5. Multi-perspective Approaches of Vocabulary Teaching and Learning

    Institute of Scientific and Technical Information of China (English)

    王欣

    2016-01-01

    It is universally acknowledged that vocabulary is an essential component in language system. Nevertheless, in English teaching practice, imparting grammatical knowledge is highly emphasized but the vocabulary teaching is given little attention. In second language acquisition, proper application of vocabulary in communication is one of the important and difficult points for students. The paper aims to discuss the current problems in vocabulary teaching and learning, advocate a multi-perspective approach in teaching vocabulary so as to enhance the accuracy and fluency of language output, promote students’pragmatic and cross-cultural communicative competence and lay a solid foundation for their life-long learning.

  6. Children's Vocabulary Development : The role of parental input, vocabulary composition and early communicative skills

    OpenAIRE

    Cox Eriksson, Christine

    2014-01-01

    The aim of this thesis is to examine the early vocabulary development of a sample of Swedish children in relation to parental input and early communicative skills. Three studies are situated in an overall description of early language development in children. The data analyzed in the thesis was collected within a larger project at Stockholm University (SPRINT- “Effects of enhanced parental input on young children’s vocabulary development and subsequent literacy development” [VR 2008-5094]). D...

  7. he Use of Association in the Vocabulary Teaching in Middle School%he Use of Association in the Vocabulary Teaching in Middle School

    Institute of Scientific and Technical Information of China (English)

    曹文亭

    2011-01-01

    Vocabulary is very important in the process of learning English. The gift of vocabulary will directly affect one' s gifts of listening, speaking, reading, writing and translating. How to teach vocabulary? There are many methods to teach vocabulary in Midd

  8. A Study of Polysemy in English Vocabulary

    Institute of Scientific and Technical Information of China (English)

    李俊飞

    2016-01-01

    Polysemy is very common in English vocabulary. It is essential to analyze the structure, features and language context of polysemy for language learner. For the four different reasons:shift of application in different fields;mutual transformation between common words and specialized words;ellipsis in language use and the reason explained in cognitive theory, polysemy comes into being.

  9. Children's Productive Use of Academic Vocabulary

    Science.gov (United States)

    Ma, Shufeng; Zhang, Jie; Anderson, Richard C.; Morris, Joshua; Nguyen-Jahiel, Kim Thi; Miller, Brian; Jadallah, May; Sun, Jingjing; Lin, Tzu-Jung; Scott, Theresa; Hsu, Yu-Li; Zhang, Xin; Latawiec, Beata; Grabow, Kay

    2017-01-01

    Instructional influences on productive use of academic vocabulary were investigated among 460 mostly African American and Latina/o fifth graders from 36 classrooms in eight public schools serving low-income families. Students received a 6-week unit on wolf management involving collaborative group work (CG) or direct instruction (DI). The big…

  10. Vocabulary of CPH Theory and Modern Physics

    DEFF Research Database (Denmark)

    Javadi, Hossein; Forouzbakhsh, Farshid; Daei Kasmaei, Hamed

    2016-01-01

    Wherefore CPH theory was presented? There are various theories in physics, but nature is unique. This is not nature's problem that we have various theories; nature obeys simple and unique law. So, we should improve our understanding of physical phenomena and unify theories. There is a compare bri...... of CPH Theory (Creative Particles of Higgs Theory) and modern physics in this vocabulary....

  11. Tagging behaviour with support from controlled vocabulary

    DEFF Research Database (Denmark)

    Lykke, Marianne; Høj, Anne Lyhne; Madsen, Line Nørgaard

    2011-01-01

    The paper investigates how knowledge structures from a controlled vocabulary affect tagging. The study is a comparative analysis of tags assigned in two tagging systems, a simple tagging system (control system) that provides suggestions from two tag clouds (all users tags and my tags) and an enha......The paper investigates how knowledge structures from a controlled vocabulary affect tagging. The study is a comparative analysis of tags assigned in two tagging systems, a simple tagging system (control system) that provides suggestions from two tag clouds (all users tags and my tags...... vocabulary might help taggers in being more specific in their tagging, allowing more precise information searching based on user tags. In addition, the results indicate that structured controlled suggestions might encourage taggers to add synonym variations enhancing the variety and number of access points....... Furthermore, controlled vocabularies might be useful for automatic spell checking. Future study should explore in what direction the different kinds of suggestions lead the tagger and whether it is possible to identify scope or patterns between related tags from the two systems....

  12. Standardizing "HyperVocabulary": A Proposal.

    Science.gov (United States)

    Chen, Der-Thanq

    Vocabulary used to describe things that are "hyper" is very confusing. This paper discusses four factor which contribute to the confusion: the same idea is often described using different terms; even though people sometimes use the same terms, quite often they are referring to different ideas; people tend to confuse "hyperdocuments" with…

  13. Deepening Kindergarteners' Science Vocabulary: A Design Study

    Science.gov (United States)

    Parsons, Allison Ward; Bryant, Camille Lawrence

    2016-01-01

    Early, effective instruction to introduce both science vocabulary and general academic language may help children build a strong conceptual and linguistic foundation for later instruction. In this study, a design research intervention was employed to expose children to a variety of interrelated science content words to increase both the breadth…

  14. Learning Vocabulary in Group Work in Vietnam

    Science.gov (United States)

    Huong, Le Pham Hoai

    2006-01-01

    This study investigated learning vocabulary in group work at university in Vietnam. The students were studied in two kinds of group settings, "unassisted" and "assisted", the first consisting of five students from the same class level and the second of four from the same class and a student from a higher class. Differences were…

  15. Tagging behaviour with support from controlled vocabulary

    DEFF Research Database (Denmark)

    Lykke, Marianne; Høj, Anne Lyhne; Madsen, Line Nørgaard

    2011-01-01

    The paper investigates how knowledge structures from a controlled vocabulary affect tagging. The study is a comparative analysis of tags assigned in two tagging systems, a simple tagging system (control system) that provides suggestions from two tag clouds (all users tags and my tags) and an enha...

  16. Learning Vocabulary in Group Work in Vietnam

    Science.gov (United States)

    Huong, Le Pham Hoai

    2006-01-01

    This study investigated learning vocabulary in group work at university in Vietnam. The students were studied in two kinds of group settings, "unassisted" and "assisted", the first consisting of five students from the same class level and the second of four from the same class and a student from a higher class. Differences were observed in both…

  17. Ways to Win at Vocabulary Learning

    Science.gov (United States)

    Goodwin, Amanda P.; Cho, Sun-Joo; Nichols, Sally

    2016-01-01

    This teaching tip identifies ways to "WIN" at vocabulary learning. Specifically, the approach conveys three morphological strategies in the mnemonic "WIN." These three strategies remind students to find smaller units of meaning within bigger words, look for those units in other words that they know, and notice the context. Each…

  18. Vocabulary of CPH Theory and Modern Physics

    DEFF Research Database (Denmark)

    Javadi, Hossein; Forouzbakhsh, Farshid; Daei Kasmaei, Hamed

    2016-01-01

    Wherefore CPH theory was presented? There are various theories in physics, but nature is unique. This is not nature's problem that we have various theories; nature obeys simple and unique law. So, we should improve our understanding of physical phenomena and unify theories. There is a compare brief...... of CPH Theory (Creative Particles of Higgs Theory) and modern physics in this vocabulary....

  19. Active Learning Strategies and Vocabulary Achievement

    Science.gov (United States)

    Griffith, John R.

    2015-01-01

    Using a quantitative method of data collection, this research explored the question: Do active learning strategies used in grades 5 and 6 affect student vocabulary achievement in a positive or negative direction? In their research, Wolfe (2001), Headley, et al., (1995), Freiberg, et al., (1992), and Brunner (2009) emphasize the importance of…

  20. Robust Vocabulary Instruction in a Readers' Workshop

    Science.gov (United States)

    Feezell, Greg

    2012-01-01

    This article presents strategies for integrating explicit vocabulary instruction within a reading workshop. The author begins by describing a process for involving students in word selection. The author then provides a weeklong instructional sequence using student-selected words. Finally, the author briefly examines the role of vocabulary…

  1. Vocabulary Games: More than Just Wordplay

    Science.gov (United States)

    Lorenzutti, Nico

    2016-01-01

    Games offer more than just fun and play, and the analyses suggest that varying vocabulary activities is important if learners are to practice all the aspects of word knowledge. However, despite all the evidence, just claiming that playing games is a good way to practice the language is often not enough to win the argument. Because author Nico…

  2. Personalization of Reading Passages Improves Vocabulary Acquisition

    Science.gov (United States)

    Heilman, Michael; Collins-Thompson, Kevyn; Callan, Jamie; Eskenazi, Maxine; Juffs, Alan; Wilson, Lois

    2010-01-01

    The REAP tutoring system provides individualized and adaptive English as a Second Language vocabulary practice. REAP can automatically personalize instruction by providing practice readings about topics that match interests as well as domain-based, cognitive objectives. While most previous research on motivation in intelligent tutoring…

  3. Improving new vocabulary learning in context

    OpenAIRE

    Colombia Ovalle María

    2009-01-01

    The main purpose of this study is to help students increase their vocabulary learning in context because when learners participate in a special class with different activities and keep in mind the situation, they remember new words. The study was carried out in the action research method, and the activities provided to students encouraged learning and motivated them to practice English more.

  4. Effectiveness of Structural Method of Teaching Vocabulary

    Science.gov (United States)

    Behlol, Malik; Dad, Hukam

    2010-01-01

    The study was conducted to find out the effectiveness of structural method of teaching vocabulary in English subject at secondary level. The population of the study was the students of secondary classes studying in Federal Government schools of Islamabad District. Purposive and random sampling techniques were applied to select the school, teachers…

  5. How Do Raters Judge Spoken Vocabulary?

    Science.gov (United States)

    Li, Hui

    2016-01-01

    The aim of the study was to investigate how raters come to their decisions when judging spoken vocabulary. Segmental rating was introduced to quantify raters' decision-making process. It is hoped that this simulated study brings fresh insight to future methodological considerations with spoken data. Twenty trainee raters assessed five Chinese…

  6. Teaching Vocabulary and Morphology in Intermediate Grades

    Science.gov (United States)

    Palumbo, Anthony; Kramer-Vida, Louisa; Hunt, Carolyn V.

    2015-01-01

    Direct vocabulary instruction of Tier 2 and Tier 3 words in intermediate-grade curricula is an important tool of literacy instruction because English is a language grafted from many roots and has not developed a one-to-one phoneme-grapheme correspondence. In addition to knowing graphemes and phonemes, students must formally learn words that cross…

  7. A Computer-Adaptive Vocabulary Test

    Science.gov (United States)

    Molina, Maria Teresa Lopez-Mezquita

    2009-01-01

    Lexical competence is considered to be an essential step in the development and consolidation of a student's linguistic ability, and thus the reliable assessment of such competence turns out to be a fundamental aspect in this process. The design and construction of vocabulary tests has become an area of special interest, as it may provide teachers…

  8. Word Lists for Vocabulary Learning and Teaching

    Science.gov (United States)

    Lessard-Clouston, Michael

    2013-01-01

    Within the communicative approach, often the assumption has been that with the right exposure, students will simply "pick up" the vocabulary required for learning and using English, and thus there is no need to focus on or teach it. Yet, as many teachers can attest, this is frequently not the case, and there have been recent efforts to…

  9. Cultural Connotation in English Vocabulary Teaching

    Institute of Scientific and Technical Information of China (English)

    ZhangJiying

    2004-01-01

    As an English language teacher with years of teaching experience, I have gradually recognized this fact that foreign language instruction and its vocabulary learn/rig should be closely combined with learning the knowledge of cultural contents of target language. Unfortunately, only a small number of teachers realize that teaching culture is very

  10. The Importance of Vocabulary for Science Learning

    Science.gov (United States)

    Cohen, Marisa T.

    2012-01-01

    A major component of literacy is "vocabulary," or the words employed by a language or in a field of knowledge. Understanding novel words and concepts is important for young students as they are confronted with a great deal of new terminology in the passages they read, especially in content areas such as science. Science is a discipline that relies…

  11. A Computer-Adaptive Vocabulary Test

    Science.gov (United States)

    Molina, Maria Teresa Lopez-Mezquita

    2009-01-01

    Lexical competence is considered to be an essential step in the development and consolidation of a student's linguistic ability, and thus the reliable assessment of such competence turns out to be a fundamental aspect in this process. The design and construction of vocabulary tests has become an area of special interest, as it may provide teachers…

  12. Metaphor and Vocabulary Teaching in ESP Economics.

    Science.gov (United States)

    Charteris-Black, Jonathan

    2000-01-01

    A case is made for basing vocabulary teaching to English for special purposes economics students on lexis that reflects important underlying metaphors of the subject. These are identified with reference to high frequency lexis in "The Economist" magazine, and an explanation is offered of their metaphorical basis. (Author/VWL)

  13. Inter-textual Vocabulary Growth Patterns for Marine Engineering English

    Institute of Scientific and Technical Information of China (English)

    JINGJIE LI; ZHIWEI FENG

    2011-01-01

    This paper explores two fundamental issues concerning the inter-textual vocabulary growth patterns for Marine Engineering English, viz. vocabulary growth models and newly occurring vocabulary distributions in cumulative texts. On the basis of the DMMEE (Dalian Maritime University Marine Engineering English) corpus, four mathematical models (Brunet's, Guiraud's, Tuldava's, and Herdan's models) are tested against the empirical vocabulary growth curve for Marine Engineering English. A new growth model based on the logarithmic function and the power law is presented. The theoretical mean vocabulary size and the 95% upper and lower bound values are calculated and plotted as functions of the sample size. Being significant in explicit EFL teaching and learning, the new growth model can make accurate estimates not only on the vocabulary size and its intervals for a given textbook but also on the volume of texts that are needed to produce a particular vocabulary size.

  14. Online Independent Vocabulary Learning Experience of Hong Kong University Students

    Directory of Open Access Journals (Sweden)

    Eunice Tang

    2016-03-01

    Full Text Available In response to the limited vocabulary size of its undergraduates, an independent vocabulary learning platform, VLearn was designed and launched in a university in Hong Kong. As an elearning environment that supports self-directed vocabulary learning of Chinese learners, the primary aim of VLearn is to equip users with appropriate knowledge and skills for vocabulary expansion. This paper introduces the contents of VLearn, and the theoretical underpinnings of its design. It also reports on the vocabulary learning experience of its users during an eight week evaluation study. Suggestions are made on how independent vocabulary building at higher education, as well as comprehensive vocabulary instruction at early years could be supported by means of technology.

  15. Specifying the Construct of Academic Vocabulary: Functional and Discursive Perspectives

    Directory of Open Access Journals (Sweden)

    Moisés Damián Perales Escudero

    2012-04-01

    Full Text Available Problem Statement: Models of academic vocabulary use need to address discursive and functional linguistics perspectives in order to enhance construct validity and authenticity in academic vocabulary assessment, particularly with regard to the testing of word families.Purpose of Study: To provide a clearer picture of academic vocabulary use that can inform the design of academic vocabulary testing by enhancing construct validity and authenticity.Method: A survey of the literature on academic vocabulary has been conducted to present various perspectives and their shortcoming. Then, findings from the functional linguistics and discourse analysis traditions with regard to vocabulary use are discussed. An example of a testing item incorporating functional perspectives on the use of derivatives within a lemma is presented.Conclusion: Incorporating functional and discursive findings related to the discourse-structuring functions of multiple derivatives of a single lemma may lead to more valid and authentic academic vocabulary tests and teaching practices.

  16. Moving Controlled Vocabularies into the Semantic Web

    Science.gov (United States)

    Thomas, R.; Lowry, R. K.; Kokkinaki, A.

    2015-12-01

    One of the issues with legacy oceanographic data formats is that the only tool available for describing what a measurement is and how it was made is a single metadata tag known as the parameter code. The British Oceanographic Data Centre (BODC) has been supporting the international oceanographic community gain maximum benefit from this through a controlled vocabulary known as the BODC Parameter Usage Vocabulary (PUV). Over time this has grown to over 34,000 entries some of which have preferred labels with over 400 bytes of descriptive information detailing what was measured and how. A decade ago the BODC pioneered making this information available in a more useful form with the implementation of a prototype vocabulary server (NVS) that referenced each 'parameter code' as a URL. This developed into the current server (NVS V2) in which the parameter URL resolves into an RDF document based on the SKOS data model which includes a list of resource URLs mapped to the 'parameter'. For example the parameter code for a contaminant in biota, such as 'cadmium in Mytilus edulis', carries RDF triples leading to the entry for Mytilus edulis in the WoRMS and for cadmium in the ChEBI ontologies. By providing links into these external ontologies the information captured in a 1980s parameter code now conforms to the Linked Data paradigm of the Semantic Web, vastly increasing the descriptive information accessible to a user. This presentation will describe the next steps along the road to the Semantic Web with the development of a SPARQL end point1 to expose the PUV plus the 190 other controlled vocabularies held in NVS. Whilst this is ideal for those fluent in SPARQL, most users require something a little more user-friendly and so the NVS browser2 was developed over the end point to allow less technical users to query the vocabularies and navigate the NVS ontology. This tool integrates into an editor that allows vocabulary content to be manipulated by authorised users outside BODC

  17. Variation in the vocabulary of Russian literary texts

    CERN Document Server

    Kargin, Vladislav

    2015-01-01

    In this paper, the data from a large online collection is used to study variation in the vocabulary of Russian literary texts. First, we find that variation in the vocabulary size of different authors is in a good agreement with Heaps' law with parameter $\\lambda=0.5$, consistent with previous studies. The overall distribution of word frequencies has lighter tails than both the Zipf and lognormal laws predict. Next, we focus on the variation of word frequencies across texts. We confirm statistically that word frequencies vary significantly across texts, and find that the variance of the cross-text frequency distribution is in general higher for more frequent words. The dependence of the variance on the average word frequency follows a power law with exponent $\\alpha=1.25.$ The factor models applied to the data suggest that the most of the cross-text variation is concentrated in less than $100$ most frequent words and can be explained by about $10$ factors. For less-frequent words, the frequency data is more s...

  18. Mining consumer health vocabulary from community-generated text.

    Science.gov (United States)

    Vydiswaran, V G Vinod; Mei, Qiaozhu; Hanauer, David A; Zheng, Kai

    2014-01-01

    Community-generated text corpora can be a valuable resource to extract consumer health vocabulary (CHV) and link them to professional terminologies and alternative variants. In this research, we propose a pattern-based text-mining approach to identify pairs of CHV and professional terms from Wikipedia, a large text corpus created and maintained by the community. A novel measure, leveraging the ratio of frequency of occurrence, was used to differentiate consumer terms from professional terms. We empirically evaluated the applicability of this approach using a large data sample consisting of MedLine abstracts and all posts from an online health forum, MedHelp. The results show that the proposed approach is able to identify synonymous pairs and label the terms as either consumer or professional term with high accuracy. We conclude that the proposed approach provides great potential to produce a high quality CHV to improve the performance of computational applications in processing consumer-generated health text.

  19. Dynamic HMM Model with Estimated Dynamic Property in Continuous Mandarin Speech Recognition

    Institute of Scientific and Technical Information of China (English)

    CHENFeili; ZHUJie

    2003-01-01

    A new dynamic HMM (hiddem Markov model) has been introduced in this paper, which describes the relationship between dynamic property and feature of space. The method to estimate the dynamic property is discussed in this paper, which makes the dynamic HMMmuch more practical in real time speech recognition. Ex-periment on large vocabulary continuous Mandarin speech recognition task has shown that the dynamic HMM model can achieve about 10% of error reduction both for tonal and toneless syllable. Estimated dynamic property can achieve nearly same (even better) performance than using extracted dynamic property.

  20. Maternal Continuing Folic Acid Supplementation after the First Trimester of Pregnancy Increased the Risk of Large-for-Gestational-Age Birth: A Population-Based Birth Cohort Study.

    Science.gov (United States)

    Wang, Sufang; Ge, Xing; Zhu, Beibei; Xuan, Yujie; Huang, Kun; Rutayisire, Erigene; Mao, Leijing; Huang, Sanhuan; Yan, Shuangqin; Tao, Fangbiao

    2016-08-15

    Supplementation with folic acid (FA) was proven to prevent neural tube defects (NTDs) and was recommended worldwide before and during early pregnancy. However, much less is known regarding the role of FA after the 12th gestational week (GW). This study aimed to investigate the related effects of continued FA supplementation after the first trimester of pregnancy on fetal growth. The study subjects came from the Ma'anshan-Anhui Birth Cohort Study (MABC) that recruited 3474 pregnant women from the city of Ma'anshan in Anhui Province in China during the period of May 2013 to September 2014. The information on use of vitamin and mineral supplements was recorded in different periods (the first/second/third trimester of pregnancy). Small-for-gestational-age (SGA) births were live-born infants that were pregnancy on the risk of LGA and SGA. In addition, propensity score analysis was also performed to examine the effects. In this prospective birth cohort study conducted in Chinese women who had taken FA in the first trimester of pregnancy, we found that continued FA supplementation with 400 micrograms/day in the second and third trimesters of pregnancy significantly increased the risk of LGA (RR = 1.98 (1.29, 3.04)). This relation was strong or monotonic after adjusting for maternal age, newborn's gender, maternal pre-pregnancy BMI, maternal education level, smoking, alcohol consumption and calcium supplementation. We did not observe that continuing FA supplementation after the first trimester of pregnancy remarkably decreased the risk of SGA. The propensity score analysis showed similar results. To confirm these findings, additional investigations or trials with a large sample and the tracking of folate status throughout pregnancy are recommended.

  1. Maternal Continuing Folic Acid Supplementation after the First Trimester of Pregnancy Increased the Risk of Large-for-Gestational-Age Birth: A Population-Based Birth Cohort Study

    Directory of Open Access Journals (Sweden)

    Sufang Wang

    2016-08-01

    Full Text Available Supplementation with folic acid (FA was proven to prevent neural tube defects (NTDs and was recommended worldwide before and during early pregnancy. However, much less is known regarding the role of FA after the 12th gestational week (GW. This study aimed to investigate the related effects of continued FA supplementation after the first trimester of pregnancy on fetal growth. The study subjects came from the Ma’anshan-Anhui Birth Cohort Study (MABC that recruited 3474 pregnant women from the city of Ma’anshan in Anhui Province in China during the period of May 2013 to September 2014. The information on use of vitamin and mineral supplements was recorded in different periods (the first/second/third trimester of pregnancy. Small-for-gestational-age (SGA births were live-born infants that were <10th percentile of birth weight, and large-for-gestational-age (LGA births were live-born infants that were ≥90th percentile of birth weight according to nomograms based on gender and gestational age from the latest standards. We used multivariable logistic regression to evaluate the effects of FA supplement consumption in the second/third trimester of pregnancy on the risk of LGA and SGA. In addition, propensity score analysis was also performed to examine the effects. In this prospective birth cohort study conducted in Chinese women who had taken FA in the first trimester of pregnancy, we found that continued FA supplementation with 400 micrograms/day in the second and third trimesters of pregnancy significantly increased the risk of LGA (RR = 1.98 (1.29, 3.04. This relation was strong or monotonic after adjusting for maternal age, newborn’s gender, maternal pre-pregnancy BMI, maternal education level, smoking, alcohol consumption and calcium supplementation. We did not observe that continuing FA supplementation after the first trimester of pregnancy remarkably decreased the risk of SGA. The propensity score analysis showed similar results. To

  2. The usage of network vocabulary among college students

    Institute of Scientific and Technical Information of China (English)

    MlAO Xi-song; CHEN Tong

    2016-01-01

    Objective: To understand that college students how to use vocabulary on the network, the practicability of network vocabulary among college students, as well as the factors affecting the network vocabulary used. Methods: This study extracted 2500 college students of several universities in Yunnan Province as experimental subjects. Using non-experimental research methods to study the awareness,usage and practicability of the network vocabulary. Results: The number of the results of this study based on the analysis of 2500 college students ,the basic vocabulary to identify the network has 2426, accounting for 97.04% of the total number, which has 33.44 percent of the students fully understand the vocabulary of the network. While only 2.96 percent of the students do not understand the network vocabulary. Conclusion: The network vocabulary is vivid, straightforward, humorous, and fashionable. Thus it is popular among students. Students have strong awareness of network vocabulary. Besides the usage of network vocabulary is higher and it’s practical among college students.

  3. The Use of Vocabulary Learning Strategies in Teaching Turkish as a Second Language

    Science.gov (United States)

    Baskin, Sami; Iscan, Adem; Karagoz, Beytullah; Birol, Gülnur

    2017-01-01

    Vocabulary learning is the basis of the language learning process in teaching Turkish as a second language. Vocabulary learning strategies need to be used in order for vocabulary learning to take place effectively. The use of vocabulary learning strategies facilitates vocabulary learning and increases student achievement. Each student uses a…

  4. The Vocabulary Reality from Elementary School to High School in China

    Institute of Scientific and Technical Information of China (English)

    ZHANG Ming-hua

    2014-01-01

    The purpose of this research is to examine how large English language vocabulary is used in elementary, middle and high schools in China in order to plan for teaching how much English vocabulary college students learn in the first two years to develop general English ability. One corpus is used to examine how many high-frequency words are included in elementary, middle and high school English vocabulary and Vocabprofile and Text Lex Compare of on-line tool-http://www.lextutor.ca/are used to. There are three interesting points arising from the analysis of the three word lists. First, most of the words consisted of basic-level words. Second, from analysis of the degrees of word repetition, students only learn 2208 new words and there are 1812 repeated words in the three stages. Third, from analysis of how much coverage of the three vocabulary families each of the three base lists provide, 99.9% of the running words are in base word list one, two and three. Based on these viewpoints, basic words should be identified scientifically and educationally for Chinese learners of English.

  5. The relationship between Iranian EFL learners’ self-regulatory vocabulary strategy use and their vocabulary size

    Directory of Open Access Journals (Sweden)

    Seyed Mohammad Reza Amirian

    2015-07-01

    Full Text Available Self-regulation is referred to as learners’ self-generated ideas and actions which are systematically directed towards achieving educational goals and require learners’ active participation in the learning process (Zimmerman & Bandura, 1994. The present study investigated the relationship between Iranian EFL students’ self-regulation capacity for vocabulary learning and their vocabulary size. For this purpose, the researchers made use of two main instruments: the self-regulation capacity in vocabulary learning scale developed by Tseng et al. (2006 consisting of five subscales of commitment, metacognitive, emotion, satiation and environment control, and a bilingual vocabulary size test developed and validated by Karami (2012. The results of the data analysis revealed no significant relationship between the two variables measured by these instruments. However, the results of the multiple regressions indicated that the metacognitive control compared to the other subscales made a better contribution to the prediction of learners’ vocabulary size. In addition, based on the analysis of variance (ANOVA, which examined and compared the self-regulatory strategy use of learners in different experience groups, the first year students had a higher mean score in their self-regulation capacity, which can possibly be attributed to the strategies they have learnt in their Study Skills courses. Finally, it was suggested that teachers must try to develop self-regulatory power in the learners because their creative effort and informed decisions in trying to improve their own learning are highly important.

  6. Home Language Will Not Take Care of Itself: Vocabulary Knowledge in Trilingual Children in the United Kingdom.

    Science.gov (United States)

    Mieszkowska, Karolina; Łuniewska, Magdalena; Kołak, Joanna; Kacprzak, Agnieszka; Wodniecka, Zofia; Haman, Ewa

    2017-01-01

    Language input is crucial for language acquisition and especially for children's vocabulary size. Bilingual children receive reduced input in each of their languages, compared to monolinguals, and are reported to have smaller vocabularies, at least in one of their languages. Vocabulary acquisition in trilingual children has been largely understudied; only a few case studies have been published so far. Moreover, trilingual language acquisition in children has been rarely contrasted with language outcomes of bilingual and monolingual peers. We present a comparison of trilingual, bilingual, and monolingual children (total of 56 participants, aged 4;5-6;7, matched one-to-one for age, gender, and non-verbal IQ) in regard to their receptive and expressive vocabulary (measured by standardized tests), and relative frequency of input in each language (measured by parental report). The monolingual children were speakers of Polish or English, while the bilinguals and trilinguals were migrant children living in the United Kingdom, speaking English as a majority language and Polish as a home language. The trilinguals had another (third) language at home. For the majority language, English, no differences were found across the three groups, either in the receptive or productive vocabulary. The groups differed, however, in their performance in Polish, the home language. The trilinguals had lower receptive vocabulary than the monolinguals, and lower productive vocabulary compared to the monolinguals. The trilinguals showed similar lexical knowledge to the bilinguals. The bilinguals demonstrated lower scores than the monolinguals, but only in productive vocabulary. The data on reported language input show that input in English in bilingual and trilingual groups is similar, but the bilinguals outscore the trilinguals in relative frequency of Polish input. Overall, the results suggest that in the majority language, multilingual children may develop lexical skills similar to those of

  7. Home Language Will Not Take Care of Itself: Vocabulary Knowledge in Trilingual Children in the United Kingdom

    Directory of Open Access Journals (Sweden)

    Karolina Mieszkowska

    2017-08-01

    Full Text Available Language input is crucial for language acquisition and especially for children’s vocabulary size. Bilingual children receive reduced input in each of their languages, compared to monolinguals, and are reported to have smaller vocabularies, at least in one of their languages. Vocabulary acquisition in trilingual children has been largely understudied; only a few case studies have been published so far. Moreover, trilingual language acquisition in children has been rarely contrasted with language outcomes of bilingual and monolingual peers. We present a comparison of trilingual, bilingual, and monolingual children (total of 56 participants, aged 4;5–6;7, matched one-to-one for age, gender, and non-verbal IQ in regard to their receptive and expressive vocabulary (measured by standardized tests, and relative frequency of input in each language (measured by parental report. The monolingual children were speakers of Polish or English, while the bilinguals and trilinguals were migrant children living in the United Kingdom, speaking English as a majority language and Polish as a home language. The trilinguals had another (third language at home. For the majority language, English, no differences were found across the three groups, either in the receptive or productive vocabulary. The groups differed, however, in their performance in Polish, the home language. The trilinguals had lower receptive vocabulary than the monolinguals, and lower productive vocabulary compared to the monolinguals. The trilinguals showed similar lexical knowledge to the bilinguals. The bilinguals demonstrated lower scores than the monolinguals, but only in productive vocabulary. The data on reported language input show that input in English in bilingual and trilingual groups is similar, but the bilinguals outscore the trilinguals in relative frequency of Polish input. Overall, the results suggest that in the majority language, multilingual children may develop lexical skills

  8. Legal English Vocabulary and Its Translation

    Institute of Scientific and Technical Information of China (English)

    WANG Kuang-zheng

    2016-01-01

    There are differences between legal English and general English. Legal English relates to the legal profession. Law needs to maintain the impression of seriousness, standardization, accuracy and objectiveness, and as a result, legal English also has these characteristics. Compared to general everyday English, the application of legal English vocabulary requires consider-ation of these characteristics. In the translation of legal content, attention is also needed to be paid to the characteristics of foren-sic linguistics. Standardized legal terms are used in the translation of legal regulations and other content to keep the characteris-tics of faithfulness, accuracy, smoothness and consistency. In this paper, legal English vocabulary is discussed based on its char-acteristics, as well as the method of translation of legal content. For practical translation of legal English, translation methods in-clude literal translation, free translation and addition and omission. These methods are briefly discussed in this paper.

  9. Learning the Structural Vocabulary of a Network.

    Science.gov (United States)

    Navlakha, Saket

    2017-02-01

    Networks have become instrumental in deciphering how information is processed and transferred within systems in almost every scientific field today. Nearly all network analyses, however, have relied on humans to devise structural features of networks believed to be most discriminative for an application. We present a framework for comparing and classifying networks without human-crafted features using deep learning. After training, autoencoders contain hidden units that encode a robust structural vocabulary for succinctly describing graphs. We use this feature vocabulary to tackle several network mining problems and find improved predictive performance versus many popular features used today. These problems include uncovering growth mechanisms driving the evolution of networks, predicting protein network fragility, and identifying environmental niches for metabolic networks. Deep learning offers a principled approach for mining complex networks and tackling graph-theoretic problems.

  10. Vocabulary for Virtual Observatories and Data Systems

    Science.gov (United States)

    Hourcle, J. A.; King, T. A.

    2010-12-01

    Virtual Observatories and other unifying data systems have been forming in nearly every science discipline. As is common in any field, language evolves to discuss the concepts, but it may evolve differently when commnities don't intercommunicate. In order to discuss our organizations and data systems across disciplines, we must have a clear language to be able to communicate information about our systems and the content within our systems. We present common terms and definitions used in earth and space informatics when discussing science archives, search systems, services and other data system components. One benefit of a common vocabulary is to help those who implement science data systems to easily recognize other efforts with a common purpose. A common vocabulary is also useful in identifying analogous terms in other related fields such as computer science and information science. We also solicit input on problematic terms that people have encountered, particularly where there is lack of agreement on the definition between various disciplines.

  11. Legal English Vocabulary and Its Translation

    Institute of Scientific and Technical Information of China (English)

    WANG Kuang zheng

    2016-01-01

    There are differences between legal English and general English. Legal English relates to the legal profession. Law needs to maintain the impression of seriousness, standardization, accuracy and objectiveness, and as a result, legal English also has these characteristics. Compared to general everyday English, the application of legal English vocabulary requires consideration of these characteristics. In the translation of legal content, attention is also needed to be paid to the characteristics of forensic linguistics. Standardized legal terms are used in the translation of legal regulations and other content to keep the characteristics of faithfulness, accuracy, smoothness and consistency. In this paper, legal English vocabulary is discussed based on its characteristics, as well as the method of translation of legal content. For practical translation of legal English, translation methods include literal translation, free translation and addition and omission. These methods are briefly discussed in this paper.

  12. [Anglicisms in the German medical vocabulary].

    Science.gov (United States)

    Schleyer, F

    1985-01-01

    In view of an ever-increasing infiltration of the German medical vocabulary by Britishisms and Americanisms, a linguistic attempt was made to categorize this phraseology as follows: more or less incorporated terminology, "internationalized" terms, identical translations, unnecessary use of English expressions instead of German synonyms, borrowing from the English with an alteration of the original meaning, and German neologisms on the basis of English vocabular material. Specimens from all these categories are enumerated.

  13. English Vocabulary Teaching in High school

    Institute of Scientific and Technical Information of China (English)

    黄肖容

    2014-01-01

    <正>1.Introduction At present,because of the influence of"the one-sided pursuing of the proportion of students’entering schools of a higher grade",the middle school foreign language teaching stresses on memorizing vocabulary mechanically,and neglects actual practice.Finally the knowledge students have learned can not be applied actively,and they even can not carry on the

  14. Improving New Vocabulary Learning in Context

    Directory of Open Access Journals (Sweden)

    Colombia Ovalle María

    2001-08-01

    Full Text Available The main purpose of this study is to help students increase their vocabulary learning in context because when learners participate in a special class with different activities and keep in mind the situation, they remember new words. The study was carried out in the action research method, and the activities provided to students encouraged learning and motivated them to practice English more.

  15. Multilingual Vocabularies in Automatic Speech Recognition

    Science.gov (United States)

    2000-08-01

    monolingual (a few thousands) is an obstacle to a full generalization of the inventories, then moved to the multilingual case. In the approach towards the...language. of multilingual models than the monolingual models, and it was specifically observed in the test with Spanish utterances. In fact...UNCLASSIFIED Defense Technical Information Center Compilation Part Notice ADP010389 TITLE: Multilingual Vocabularies in Automatic Speech Recognition

  16. THE EFFECTIVENESS OF PICTURE CHART MEDIA ON STUDENTS’ ENGLISH VOCABULARY

    Directory of Open Access Journals (Sweden)

    Novanie Sulastri

    2011-09-01

    Full Text Available The study is aimed at investigating the effectiveness of using picture chart media on students’ English vocabulary. The study belonged to pre-experimental study by applying counterbalance procedure to collect the data. The study was conducted at the class VII-5 at the SMPN 1 Palangka Raya. The number of the sample was 40 students. This study was restricted to focus on teaching vocabulary especially in classification of vocabulary. To answer the research problem, the t test for correlated was applied. The research findings showed that teaching vocabulary by using picture chart media gives effect toward the seventh grade students’ English vocabulary. The mean score of posttest reached higher score than the mean score of pretest (X=57.105 t table =2.021. Keywords: picture chart media, effectiveness, English vocabulary

  17. On Vocabulary Teaching%关于词汇教学

    Institute of Scientific and Technical Information of China (English)

    王建卿

    2005-01-01

    Vocabulary is a very important part of language teaching and learning. This article discusses vocabulary teaching from the aspects of "aspects of vocabulary teaching, pattern of vocabulary teaching, memory and teaching techniques of vocabulary and strategies-based instruction on vocabulary teaching".%词汇是语言教学的一个很重要的方面.文章讨论了以下方面:词汇教学的方面,词汇教学的模式、记忆和词汇数学技艺以及在词汇数学中应对学生进行词汇学习策略指导.

  18. Incidental Vocabulary Learning in Second Language Acquisition: A Literature Review

    Directory of Open Access Journals (Sweden)

    Falcon Dario Restrepo Ramos

    2015-01-01

    Full Text Available This literature review aims to analyze previous studies that address the incidental learning of vocabulary in second language acquisition. The articles included in this literature review look into the understanding of vocabulary learning through incidental means, the relationship of reading and incidental vocabulary learning, and the strategies and tasks that promote the incidental learning of vocabulary. The findings show that L2 learners develop much of their vocabulary by incidental means through exposure to words in informative contexts. Moreover, this exposure is promoted by reading, and enhanced through multimodal glosses. Further research may focus on listening for higher lexical retention rates, the circumstances that allow incidental learning of multi-word phrases and collocations, and the use of technology-based methods for incidental vocabulary acquisition.

  19. The use of concordance lines in vocabulary instruction

    OpenAIRE

    Kazaz, İlknur

    2015-01-01

    Ankara : The Program of Teaching English as a Foreign Language Bilkent University, 2015. Thesis (Master's) -- Bilkent University, 2015. Includes bibliographical references leaves 83-91. This study investigated the effectiveness of the use of a concordance software and concordance lines as a pedagogical tool to learn the target vocabulary of a text book. The purpose of the study was to compare the effects of corpus-aided vocabulary instruction with traditional vocabulary teac...

  20. Teaching vocabulary using collocations versus using definitions in EFL classes

    OpenAIRE

    Altınok, Şerife İper

    2000-01-01

    Ankara : Institute of Economics and Social Sciences of Bilkent Univ., 2000. Thesis (Master's) -- Bilkent University, 2000. Includes bibliographical references leaves 40-43 Teaching words in collocations is a comparatively new technique and it is accepted as an effective one in vocabulary teaching. The purpose of this study was to find out whether teaching vocabulary would result in better learning and remembering vocabulary items. This study investigated the differences betw...

  1. VOCABULARY TEACHING AND LEARNING STRATEGIES IN SECOND LANGUAGE ACQUISITION

    OpenAIRE

    Adriana Teodorescu

    2011-01-01

    This paper aims at presenting various strategies and techniques used in vocabulary teaching and learning while reassessing the importance and role of vocabulary knowledge in second language acquisition. Lexical knowledge has proven to be central to communicative competence and to the acquisition of a second language. Besides, vocabulary knowledge involves much more than knowledge of single words, but knowledge of how words work together to achieve a communicative function.

  2. VOCABULARY TEACHING AND LEARNING STRATEGIES IN SECOND LANGUAGE ACQUISITION

    Directory of Open Access Journals (Sweden)

    Adriana Teodorescu

    2011-11-01

    Full Text Available This paper aims at presenting various strategies and techniques used in vocabulary teaching and learning while reassessing the importance and role of vocabulary knowledge in second language acquisition. Lexical knowledge has proven to be central to communicative competence and to the acquisition of a second language. Besides, vocabulary knowledge involves much more than knowledge of single words, but knowledge of how words work together to achieve a communicative function.

  3. Receptive vocabulary differences in monolingual and bilingual children

    OpenAIRE

    Bialystok, Ellen; PEETS, KATHLEEN F.; Yang, Sujin; Luk, Gigi

    2010-01-01

    Studies often report that bilingual participants possess a smaller vocabulary in the language of testing than monolinguals, especially in research with children. However, each study is based on a small sample so it is difficult to determine whether the vocabulary difference is due to sampling error. We report the results of an analysis of 1,738 children between 3 and 10 years old and demonstrate a consistent difference in receptive vocabulary between the two groups. Two preliminary analyses s...

  4. Size and depth of vocabulary knowledge: what the research shows

    OpenAIRE

    Schmitt, Norbert

    2014-01-01

    When discussing vocabulary, a distinction is often made between size of vocabulary (number of known words) and depth of knowledge (how well those words are known). However, the relationship between the two constructs is still unclear. Some scholars argue that there is little real difference between the two, while regression analyses show that depth typically adds unique explanatory power compared to size alone. Ultimately, the relationship between size and depth of vocabulary knowledge depend...

  5. English vocabulary teaching in Chinese junior high schools

    OpenAIRE

    Zhang, Jinghong

    2015-01-01

    Vocabulary learning is an important and indispensable part of the English language learning process. In this paper, the author tried to examine the vocabulary teaching practice in Chinese junior high schools. A questionnaire was used to investigate the problem from the perspectives of in-service teachers. Besides, the National English Curriculum (MOE, 2011) served as another important source of data in this study. The data revealed that progress has been made in English vocabulary teaching in...

  6. How to Teach English Vocabulary Effectively in New Ways

    Institute of Scientific and Technical Information of China (English)

    聂冬霞

    2014-01-01

    There are many important factors to help learn English better.In learning English, vocabulary could be very important part because it is a fundamental element to form a sentence. So many English teachers try very hard to use different and new ways to make their vocabulary teaching effective, and also improve students’ability of using the language. Here we are going to see what kinds of new ways an English teacher can use to help students to learn English vocabulary better.

  7. The Influence of Psycholinguistic On the Vocabulary Learning of English

    Institute of Scientific and Technical Information of China (English)

    梁慧

    2006-01-01

    @@ Learning English has become more and more popular in China.Those who have experience in leaning English, know that vocabulary, in the end, becomes one of the biggest problems in learning English, because vocabulary is the most essential element in communication, and to a great extent, it restricts one's communication competent.Since 1970s, vocabulary teaching has received increasing interest and drawn forth various views on how to do the job.

  8. VOCABULARY TEACHING AND LEARNING STRATEGIES IN SECOND LANGUAGE ACQUISITION

    Directory of Open Access Journals (Sweden)

    Adriana Teodorescu

    2011-10-01

    Full Text Available This paper aims at presenting various strategies and techniques used in vocabulary teaching and learning while reassessing the importance and role of vocabulary knowledge in second language acquisition. Lexical knowledge has proven to be central to communicative competence and to the acquisition of a second language. Besides, vocabulary knowledge involves much more than knowledge of single words, but knowledge of how words work together to achieve a communicative function.

  9. CULTURAL DIFFERENCES IN VOCABULARY AND ENGLISH LANGUAGE TEACHING

    Institute of Scientific and Technical Information of China (English)

    GuanJialing

    2004-01-01

    From illustrating the significance of cultural elements in vocabulary teaching, and the ctmtparison of some major differences between English and Chinese words, this paper emphasizes the indivisible relationship between vocabulary and culture. International cultural exchange occurring more and more often, this paper attempts to guide students to better understand the cultural connotation of vocabulary, enhance their awareness towards the target culture, improve their comtprehensive language skills, and, develop their cross-cultural communicative ctmtpetence.

  10. Vocabulary and Writing in a First and Second Language

    DEFF Research Database (Denmark)

    Albrechtsen, Dorte; Haastrup, Kirsten; Henriksen, Birgit

    Book description: Vocabulary and Writing in a First and Second Language is based on a large-scale empirical study. The innovative feature of the research was that the same students were asked to do the same tasks in both languages while reporting their thinking as they went along. Furthermore......-depth approach useful in understanding the processes of both first and second language performance...... the relationship between the skills and describe the level of development for individual learners within the three areas. In all cases, statistical and qualitative analyses are offered, the latter being based on the learners' own 'think-aloud' reports. Both researchers and teachers of language will find this in...

  11. A Study of Vocabulary Learning Strategies in Vocabulary Revising for Underachiever in Senior 3

    Institute of Scientific and Technical Information of China (English)

    钱晓敏

    2015-01-01

    Through questionnaire,strategies training and tests,the author concludes that,firstly,the high achievers of vocabulary are more likely to use meta -cognitive strategies,cog-nitive strategies and social strategies.In contrast,underachievers are likely to use some traditional ways like reciting and repeating;secondly,strategies training has a good impact on the undera-chievers’vocabulary ability;final y,the underachievers need to be trained to use social strategies,meta -cognitive strategies and cognitive strategies more often.And the training process re-quires special patience and creativities.This paper analyzes the application of vocabulary learning strategies in revision for senior underachieving students,hoping to provide some references for students and English teachers in senior high school.

  12. Vocabulary knowledge predicts lexical processing: Evidence from a group of participants with diverse educational backgrounds

    NARCIS (Netherlands)

    Mainz, N.; Shao, Z.; Brysbaert, M.; Meyer, A.S.

    2017-01-01

    Vocabulary knowledge is central to a speaker's command of their language. In previous research, greater vocabulary knowledge has been associated with advantages in language processing. In this study, we examined the relationship between individual differences in vocabulary and language processing

  13. Vocabulary test Strategies used by the Students to answer Vocabulary Test the Reading Comprehension of TOEFL

    Directory of Open Access Journals (Sweden)

    Suyatman Suyatman

    2017-10-01

    Full Text Available Test of English as a foreign Language or TOEFL is a standardized test of English for non-native speaker. It consists of three parts or three sections of tests. In Reading Comprehension test, it consists of vocabulary test. To get better result of score, it needs strategies. The purposes of this study are to know the strategies used by the students to answer the vocabulary test on reading section of TOEFL, to know the most strategy used by the students, to know the least strategy used by the students and to know the distribution of strategies used by the students to answer the Vocabulary test of Reading Comprehension of the TOEFL. The researcher used descriptive qualitative research. The subject was twelve students. The instrument was questionnaire that consisted of thirty questions. Data analyzes technique was by using mean score. The result of the research showed that; (1 students used all strategies to answer the vocabulary test of reading comprehension of TOEFL. (2 the most strategies used by the students was ‘Looking for contextual clues to the meaning of unknown words.(3 the least strategy used by the students to answer vocabulary test was ‘Developing a new vocabulary study system, and (4 the distribution of the strategy number 1 was 3.88,strategy number 2 was 3.61, number 3 was 2.94, number four was 2.91, strategy number 5 was3.88, strategy number six was 3.47, strategy number seven was 3.69, strategy number eight was 3.02, strategy number nine was 3.00 and the last strategy was 3.13.

  14. Short-Term and Long-Term Effects of Incidental Vocabulary Acquisition and Instructed Vocabulary Teaching

    Directory of Open Access Journals (Sweden)

    Mehdi Ghobadi

    2016-07-01

    Full Text Available The present empirical study was conducted to compare instructed vocabulary teaching and incidental vocabulary acquisition that are two common approaches to teaching second language (L2 vocabulary in the literature.  For this purpose, 53 Iran learners of English as a Foreign Language were selected from a larger sample and were then randomly assigned into a control group and two experimental groups as the participants of the study.  The participants in the groups received placebo instruction while those in the experimental groups were either explicitly instructed or incidentally exposed to a number of targeted words (TWs selected for the purposes of the study.  The results of an immediate posttest of the TWs demonstrated that the participants in both experimental groups benefited from instruction on/exposure to the TWs compared to the participants in the control group who were neither instructed on nor exposed to the TWs.  The results of a delayed posttest indicated that, though there was a difference between the two experimental groups in the immediate posttest with respect to the acquisition of the TWs, the difference faded away in five-week interval as the experimental groups performed rather similarly on the delayed posttest.  At the end, the implication of these findings for L2 vocabulary research and pedagogy would be discussed, along with some suggestions for researchers who wish to follow this trend of research. Keywords: Intentional Vocabulary Teaching, Incidental Vocabulary Acquisition, Short-Term Effects, Long-Term Effects, Target Words

  15. On Building a Universal and Compact Visual Vocabulary

    Directory of Open Access Journals (Sweden)

    Jian Hou

    2013-01-01

    Full Text Available Bag-of-visual-words has been shown to be a powerful image representation and attained great success in many computer vision and pattern recognition applications. Usually, for a given dataset, researchers choose to build a specific visual vocabulary from the dataset, and the problem of deriving a universal visual vocabulary is rarely addressed. Based on previous work on the classification performance with respect to visual vocabulary sizes, we arrive at a hypothesis that a universal visual vocabulary can be obtained by taking-into account the similarity extent of keypoints represented by one visual word. We then propose to use a similarity threshold-based clustering method to calculate the optimal vocabulary size, where the universal similarity threshold can be obtained empirically. With the optimal vocabulary size, the optimal visual vocabularies of limited sizes from three datasets are shown to be exchangeable and therefore universal. This result indicates that a universal and compact visual vocabulary can be built from a not too small dataset. Our work narrows the gab between bag-of-visual-words and bag-of-words, where a relatively fixed vocabulary can be used with different text datasets.

  16. A Study of Association Strategies in Middle School Vocabulary Learning

    Institute of Scientific and Technical Information of China (English)

    李娜

    2013-01-01

    English for a long time, they still find their vocabulary insufficient. Because of the lack of vocabulary, they cannot understand the meaning of a sentence or cannot understand what others say. And their desire to learn is very strong. Therefore, possessing the efficient strategies of vocabulary learning is especially important. From this point, according to the investigation, this paper is intended to discuss the efficiency of the association methods in middle school vocabulary learning. Only when teachers adopt the appropriate strategies can they make a productive classroom teaching and arouse students’ learning interest.

  17. VOCABULARY PROBLEMS OF THE LIGHTLY MENTALLY RETARDED SCHOOL AGED CHILDREN

    Directory of Open Access Journals (Sweden)

    Vesna KOSTIC

    2000-06-01

    Full Text Available The main research objectives are the problems in the vocabulary of school aged, lightly mentally retarded children. Results of the research indicate which are the most important factors that have impact of the vocabulary and language competence of these persons. The research variables are: sex, IQ, chronological age and school age. Comics-like stories were used as an examination instrument in this research. Their interpretation is helpful in determining the vocabulary level of every single examine. At the end of the research some suggestions are presented, whose goal is to enrich children's vocabulary.

  18. Academic vocabulary in learner writing from extraction to analysis

    CERN Document Server

    Paquot, Magali

    2010-01-01

    Academic vocabulary is in fashion, as witnessed by the increasing number of books published on the topic. In the first part of this book, Magali Paquot scrutinizes the concept of academic vocabulary and proposes a corpus-driven procedure based on the criteria of keyness, range and evenness of distribution to select academic words that could be part of a common-core academic vocabulary syllabus. In the second part, the author offers a thorough analysis of academic vocabulary in the International Corpus of Learner English (ICLE) and describes the factors that account for learners difficulties in

  19. The Development of American English Vocabulary and Its Causes

    Institute of Scientific and Technical Information of China (English)

    高万全

    2004-01-01

    This paper mainly centers on the development of American English vocabulary and its causes .To English learners, it will be helpful for them to get to know clearly the outline of American English vocabulary and find answers to many puzzling phenomena, such as why the American English vocabulary is so numerous and jumbled; why there are so many foreign words; why the synonyms are so plentiful and why the spellings of American English are so disorderly, etc. Meanwhile, through vocabulary study, English learners can know well American history, politics, economy, culture, social problem, science and technology and so on.

  20. Variable-Frequency Ultrasonic Treatment on Microstructure and Mechanical Properties of ZK60 Alloy during Large Diameter Semi-Continuous Casting

    Directory of Open Access Journals (Sweden)

    Xingrui Chen

    2017-05-01

    Full Text Available Traditional fixed-frequency ultrasonic technology and a variable-frequency ultrasonic technology were applied to refine the as-cast microstructure and improve the mechanical properties of a ZK60 (Mg–Zn–Zr alloy during large diameter semi-continuous casting. The acoustic field propagation was obtained by numerical simulation. The microstructure of the as-cast samples was characterized by optical and scanning electron microscopy. The variable-frequency ultrasonic technology shows its outstanding ability in grain refinement compared with traditional fixed-ultrasonic technology. The variable-frequency acoustic field promoted the formation of small α-Mg globular grains and changed the distribution and morphology of β-phases throughout the castings. Ultimate tensile strength and elongation are increased to 280 MPa and 8.9%, respectively, which are 19.1% and 45.9% higher than the values obtained from billets without ultrasonic treatment and are 11.6% and 18.7% higher than fixed-frequency ultrasound treated billets. Different refinement efficiencies appear in different districts of billets attributed to the sound attenuation in melt. The variable-frequency acoustic field improves the refinement effect by enhancing cavitation-enhanced heterogeneous nucleation and dendrite fragmentation effects.