AlQbailat, Naji Masned; Al-Momani, Islam M.; Almahameed, Yazan Shaker
2016-01-01
The current research paper attempted at investigating the use of prepositions of standard, prepositions of possession and prepositions of accompaniment by some Jordanian learners of English. A total of 53 Jordanian English Majors participated in the study from the department of English language at Princess Alia University College. In collecting…
Common Preposition Errors Committed by Iranian Students
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Samaneh Yousefi
2014-05-01
Full Text Available This paper examined some common problems involving prepositions in learning a second language. Many students learning English as a foreign language commonly commit mistakes in prepositions. The aim of this paper is to survey the causes of errors in the use of prepositions that are frequently made by Iranian students. A diagnostic test (35 Multiple choice item was constructed to test the students proficiency in using these prepositions. The prepositions selected for this purpose were; to, in, at, on, with, of, from, for, about, during, into under, over and by. This test was given to a group of 35 intermediate students. The results indicated that the errors committed by the students were due to both Inter-lingual and Intra-lingual interferences. It is hoped that this research will help teachers of English Language to be aware of these problems and re-evaluate their teaching approach.
Neuroanatomical correlates of locative prepositions.
Tranel, Daniel; Kemmerer, David
2004-10-01
Very little research has explored which neural systems may be important for retrieving the meanings of locative prepositions (e.g., in, on, around). To begin to address this knowledge gap, we conducted a lesion study in which we tested the hypothesis that processing the meanings of locative prepositions depends on neural structures in the left inferior prefrontal cortex and left inferior parietal cortex. Seventy-eight subjects with focal, stable lesions to various parts of the telencephalon and a comparison group of 60 normal participants were studied with tasks that require production, comprehension, and semantic analysis of locative prepositions. In support of our hypothesis, we found that in subjects with impaired knowledge of locative prepositions, the highest region of lesion overlap was in the left frontal operculum and the left supramarginal gyrus, and in the white matter subjacent to these two areas. In a second study, focused on six subjects who had pervasive defects for locative preposition knowledge, we confirmed that such defects were associated specifically with damage to the posterior left frontal operculum, white matter subjacent to this region, and white matter underneath the inferior parietal operculum. These subjects did not have basic impairments in spatial processing or working memory, and they had relatively well-preserved processing of conceptual knowledge for actions and various categories of concrete entities (e.g., persons, animals, tools). All six subjects, however, had defects in naming actions, and some of them also had defective naming of some categories of concrete entities. Overall, the findings converge nicely with recent results from functional imaging approaches, and with classic studies from the aphasia-based literature, and suggest that the left inferior prefrontal and left inferior parietal regions have crucial-albeit not exclusive-roles in processing knowledge associated with locative prepositions.
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Marleen van de Vate
2007-01-01
Full Text Available This paper is part of Peter Svenonius’ Adposition Seminar at the University of Tromsø which was taught in 2005-2006. The main focus was the distinction between locative path and locative place constructions. The aim of this paper is descriptive in nature and focuses on the complete prepositional system of Krio, an English-based Creole language spoken in Sierra Leone. The paper starts with a general introduction to prepositions in Krio. Three different categories are distinguished. This is followed by a description of each preposition individually and a discussion of intransitive prepositions and verb-particle constructions.
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Marina Pantcheva
2007-01-01
Full Text Available In this paper I present the prepositional system in Persian. I show that Persian prepositions can be divided into three classes (Class 1, Class 2a and Class 2b which exhibit distinct syntactic behavior. Then I examine the question of the categorial status of Class 2 prepositions and demonstrate that they are not to be regarded as nouns. Finally I present the extended PP projection of Persian spatial prepositions and argue for a feature-based analysis of the properties they manifest.
Prepositions: Meaning and Method.
Lindstromberg, Seth
1996-01-01
Outlines a new approach to teaching prepositions and directional adverbs based on work by Brugman (1981) and Lakoff (1987). The article aims to familiarize readers with the gist of prototype semantics as applied to prepositions, and to suggest pedagogical applications and benefits, with particular reference to the word "on." (15 references)…
On the Content of Prepositions in Prepositional Collocations
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Eva Sicherl
2004-12-01
Full Text Available The article aims to shed some light on the problems faced by non-native speakers in the formation of so-called prepositional collocations (i.e. typical, recurrent combinations of verbal, nominal or adjectival bases with prepositional collocators. The reasons for frequent mistakes mainly lie in the meaning of the preposition used as part of collocation, which tends to be even more dispersed, abstract and difficult to define than that of the preposition used in a free combination. However, the preposition when used as a collocator seems to act, at least to some extent, as a carrier of some content; this can be proven by valency patterns: meaning-related content words (collocational bases tend to regularly combine with identical prepositions. The fact that prepositions used in collocations also have their semantic part to contribute to the whole unit should also be considered in the classification of collocations into grammatical and lexical ones.
Uncovering Prepositional Senses
DEFF Research Database (Denmark)
Lassen, Tine
This dissertation is concerned with the semantics of Danish prepositions in an ontology-based information retrieval framework. In such a framework, conceptual indexing of texts is needed and, for us, the goal of this indexing process is to index texts based on the conceptual content of larger text...... of these data stem from a small pre-defined set of relations, and the ontological type information stems from the SIMPLE ontology. The resulting data set was used as input to a machine-learning algorithm, and the result was a set of rules that predict the semantic relation of a preposition based...... chunks – ideally based on the conceptual content of sentences. The conceptual content of text chunks is mapped into a so-called generative ontology, which is to be understood as a non-finite set of concepts. Basically, a generative ontology consists of a given finite ontology ordered by the ISA relation...
Neural correlates of locative prepositions
Noordzij, Matthijs L.; Neggers, Sebastiaan F.W.; Ramsey, Nick F.; Postma, Albert
2008-01-01
Locative prepositions might be special linguistic modifiers because they form a natural link between verbal and visual-spatial information. In the present fMRI study we found evidence that understanding categorical spatial relations expressed in language with locative prepositions such as “to the le
Neural correlates of locative prepositions
Noordzij, Matthijs Leendert; Neggers, Sebastiaan F.W.; Ramsey, Nick F.; Postma, Albert
2008-01-01
Locative prepositions might be special linguistic modifiers because they form a natural link between verbal and visual-spatial information. In the present fMRI study we found evidence that understanding categorical spatial relations expressed in language with locative prepositions such as “to the
Neural correlates of locative prepositions.
Noordzij, Matthijs L; Neggers, Sebastiaan F W; Ramsey, Nick F; Postma, Albert
2008-04-01
Locative prepositions might be special linguistic modifiers because they form a natural link between verbal and visual-spatial information. In the present fMRI study we found evidence that understanding categorical spatial relations expressed in language with locative prepositions such as "to the left of" and "to the right of" were reliably associated with cerebral activity in the supramarginal gyrus (SMG) located in the left inferior parietal lobe. The higher activity associated with spatial as compared to non-spatial sentences in this region was not dependent on the context (verbal or visual-spatial) in which the sentence was read. Therefore, the function of this activity appears to be to create a general, amodal representation of locative prepositions that allow for flexible comparisons to either verbal or visual-spatial material.
On the Distinction between Preposition Stranding and Orphan Prepositions
Roberge, Yves
2012-01-01
Poplack, Zentz and Dion (PZD; Poplack, Zentz & Dion, 2011, this issue) examine the often unquestioned assumption that the existence of preposition stranding (PS) in Canadian French is linked to the presence of a contact situation with English in the North American context. Although this issue has been the topic of previous research from a…
More Negative Findings for Positive Prepositions.
Abkarian, G. G.
1983-01-01
Three- and four-year-old children were tested in their comprehension of locative prepositions. Results showed that those prepositions characterized as positive were comprehended less well than their ostensibly negative counterparts, contrary to theoretical predictions. An explanatory hypothesis concerning children's developing spatial…
Schlosser, Ralf W; Koul, Rajinder; Shane, Howard; Sorce, James; Brock, Kristofer; Harmon, Ashley; Moerlein, Dorothy; Hearn, Emilia
2014-10-01
The effects of animation on naming and identification of graphic symbols for verbs and prepositions were studied in 2 graphic symbol sets in preschoolers. Using a 2 × 2 × 2 × 3 completely randomized block design, preschoolers across three age groups were randomly assigned to combinations of symbol set (Autism Language Program [ALP] Animated Graphics or Picture Communication Symbols [PCS]), symbol format (animated or static), and word class (verbs or prepositions). Children were asked to name symbols and to identify a target symbol from an array given the spoken label. Animated symbols were more readily named than static symbols, although this was more pronounced for verbs than for prepositions. ALP symbols were named more accurately than PCS in particular with prepositions. Animation did not facilitate identification. ALP symbols for prepositions were identified better than PCS, but there was no difference for verbs. Finally, older children guessed and identified symbols more effectively than younger children. Animation improves the naming of graphic symbols for verbs. For prepositions, ALP symbols are named more accurately and are more readily identifiable than PCS. Naming and identifying symbols are learned skills that develop over time. Limitations and future research directions are discussed.
Locative prepositional phrases in severe aphasia.
Weinrich, M; McCall, D; Shoosmith, L; Thomas, K; Katzenberger, K; Weber, C
1993-07-01
Six severely aphasic patients were trained on C-VIC, a computerized alternative communication system. Patients with both global and Broca's aphasia were able to produce and comprehend locative prepositions using C-VIC. The Broca's aphasic patients were able to produce and interpret symbol order correctly in C-VIC locative prepositional phrases, despite their difficulties in performing the same tasks using English. One patient's verbal production of locative prepositional phrases improved markedly after C-VIC training. These results suggest that the "mapping" impairment suffered by some Broca's aphasics may be ameliorated by use of alternative communication system, such as C-VIC.
Teaching English locative prepositions: a cognitive perspective
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Silva Bratož
2014-12-01
Full Text Available Prepositions are notoriously hard to learn, and frequently subject to negative transfer. In addition, prepositional meanings are commonly extended from the spatial to abstract domains and are, as a consequence, often unpredictable and arbitrary. Traditional approaches to second language preposition teaching have, therefore, suggested that the best way to learn prepositions would be through rote learning. On the other hand, a cognitive linguistics approach argues that the multiple uses of prepositions can be seen as related in systematic ways. Several pedagogical implications of applying cognitive linguistics findings in second language teaching and learning will be discussed, suggesting ways of translating theory into practical consideration and effective teaching materials. The second part of the article presents an instructional model for teaching the locative prepositions in, on and at from a cognitive perspective, and discusses the results of a study conducted to observe the learners’ response to instruction, based on cognitive linguistics findings. In addition, the benefits of focusing on the cross-linguistic differences between the native and target language, in an explicit and systematic way, will be discussed. In this context, reference will be made to several insights and ideas promoted by the CEFR. The article will end by considering some suggestions and ideas for future research.
Conjunctive and prepositional comparatives in Slovenian
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Sašo Živanović
2010-12-01
Full Text Available The paper deals with the distribution of conjunctive and prepositional comparative structures in Slovenian. They are introduced by the complementiser kot and the preposition od, respectively. Comparative structures are categorised along three dimensions: (i the morphological environment of the comparative morpheme (yielding amount and quality comparatives; (ii the syntactic environment of the comparative morpheme (eight syntactic environments are discussed: (nominative subject, (accusative direct object, (dative indirect object, prepositional object, locative adverbial, temporal adverbial, some other adverbial, and predicate; (iii the syntactic environment (the same environments as above are discussed of the associate (the non-elided phrase in the comparative complement is the remnant; its counterpart with the same grammatical function in the matrix clause is the associate. The comparison of conjunctive and prepositional comparatives shows that the distribution of the latter is more restricted and also exhibits more inter-speaker variation than the former. Conjunctive comparatives are acceptable in virtually all combinations of the above-mentioned parameters, the only exception being quality comparatives withan adverbial or predicate associate where the comparative morpheme is embedded in the associate. The only absolute generalisation that can be made about prepositional comparatives is that the associate must be either a subject or a direct object; all other generalisations are merely tendencies.
Schlosser, Ralf W.; Shane, Howard; Sorce, James; Koul, Rajinder; Bloomfield, Emma; Debrowski, Lisa; DeLuca, Tim; Miller, Stephanie; Schneider, Danielle; Neff, Allison
2012-01-01
Purpose: The effects of animation on transparency, name agreement, and identification of graphic symbols for verbs and prepositions were evaluated in preschoolers of 3 age groups. Methods: A mixed-group design was used; in each age group, half of the children were randomly allocated to 1 of 2 orders of symbol formats. The 52 children were asked to…
Schlosser, Ralf W.; Shane, Howard; Sorce, James; Koul, Rajinder; Bloomfield, Emma; Debrowski, Lisa; DeLuca, Tim; Miller, Stephanie; Schneider, Danielle; Neff, Allison
2012-01-01
Purpose: The effects of animation on transparency, name agreement, and identification of graphic symbols for verbs and prepositions were evaluated in preschoolers of 3 age groups. Methods: A mixed-group design was used; in each age group, half of the children were randomly allocated to 1 of 2 orders of symbol formats. The 52 children were asked to…
Preposition use in oral and written learner language
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Susan Nacey
2015-05-01
Full Text Available This paper concerns preposition use in oral language produced by advanced Norwegian learners of English, using primary data from an oral learner corpus (LINDSEI-NO. We investigate the frequency of inappropriate preposition use in approximately 13 hours of transcribed informal interviews, as well as the possible extent to which L1 transfer may play a role in production. The contextually inappropriate prepositions were categorized in terms of factors that may influence preposition use, with particular focus on the congruence between L1 and L2 with respect to syntactic structure and basic meaning. These results about spoken preposition use are then contrasted with results from a corresponding investigation into preposition use in a written learner corpus (NICLE, allowing for comparison of preposition usage across modes.
Semantic Multisense Features and Translation of English Preposition OF
Institute of Scientific and Technical Information of China (English)
张招霞
2009-01-01
The linguist often claims,"English is a language of the preposition".It is a difficult point to understand and translate it though the preposition is simple in form.The preposition OF is such a simple preposition.On the surface,it seems very simple,indeed insufficient for talk,to OF which belongs to the simple preposition and prepositional phrases formed by it,but there are many kinds of its usages.This article help readers further understanding of semantic multisense features and translation of English prepositions and offer a kind of research for the fact that the English-Chinese machine translation system choose for its model.
What is the "Sense" of Prepositions?
Dreike, Beate
1975-01-01
Examines the semantics of certain prepositions to show that the interpretation of relationships between linguistic units in a sentence is not always deducible from the logical structure underlying it, if this study does not include the study of pragmatic factors. Available from Liber Laeromedel, Box 1205, S-22105 Lund, Sweden. (Author/TL)
What is the "Sense" of Prepositions?
Dreike, Beate
1975-01-01
Examines the semantics of certain prepositions to show that the interpretation of relationships between linguistic units in a sentence is not always deducible from the logical structure underlying it, if this study does not include the study of pragmatic factors. Available from Liber Laeromedel, Box 1205, S-22105 Lund, Sweden. (Author/TL)
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Ahmed Ali Saleh Al Ajmi
2015-02-01
Full Text Available A quasi-experimental study was conducted to examin the effectiveness of providing written corrective feedback (WCF to Arab speakers of English on ten uses of English prepositions. Arab speakers commonly find it difficult to correctly use English propositions, mainly due to the differences between the two languages (e.g. Ortega, 2009. Examples of prepositions misuse are “married from,” “die from,” and “kind with.” The WCF implementation lasted for seven weeks. The students’ being in intact classes made random assignments to different groups difficult. The data were derived from three tests: pre-test, immediate post-test and delayed post-test as well as an open-ended questionnaire. The experimental group (n= 25 received WCF on their writing, oral meta-linguistic tutorials, and a treatment task for their pre-test. For both the immediate post-test and the delayed post-test, they only received WCF on their writings. The control group (n= 25 only received general comments, like “good organization of the story events.” The statistical results of the independent samples t-test show the experimental group outperforming the control group on the target features. The analysis of the questionnaire data also shows the benefits of WCF for improving preposition use. The results also have pedagogical implications with regard to WCF. Keywords: WCF, writing, prepositions, students’ views, Arabic, EFL
Schlosser, Ralf W.; Koul, Rajinder; Shane, Howard; Sorce, James; Brock, Kristofer; Harmon, Ashley; Moerlein, Dorothy; Hearn, Emilia
2014-01-01
Purpose: The effects of animation on naming and identification of graphic symbols for verbs and prepositions were studied in 2 graphic symbol sets in preschoolers. Method: Using a 2 × 2 × 2 × 3 completely randomized block design, preschoolers across three age groups were randomly assigned to combinations of symbol set (Autism Language Program…
Schlosser, Ralf W.; Koul, Rajinder; Shane, Howard; Sorce, James; Brock, Kristofer; Harmon, Ashley; Moerlein, Dorothy; Hearn, Emilia
2014-01-01
Purpose: The effects of animation on naming and identification of graphic symbols for verbs and prepositions were studied in 2 graphic symbol sets in preschoolers. Method: Using a 2 × 2 × 2 × 3 completely randomized block design, preschoolers across three age groups were randomly assigned to combinations of symbol set (Autism Language Program…
Schlosser, Ralf W; Shane, Howard; Sorce, James; Koul, Rajinder; Bloomfield, Emma; Debrowski, Lisa; DeLuca, Tim; Miller, Stephanie; Schneider, Danielle; Neff, Allison
2012-04-01
The effects of animation on transparency, name agreement, and identification of graphic symbols for verbs and prepositions were evaluated in preschoolers of 3 age groups. Methods A mixed-group design was used; in each age group, half of the children were randomly allocated to 1 of 2 orders of symbol formats. The 52 children were asked to guess the meaning of symbols and to identify a target symbol among foils given the spoken label. Animated symbols were more transparent than static symbols, although this was more pronounced for verbs. Animated verbs were named more accurately than static verbs, but there was no difference between animated and static prepositions. Verbs were identified more accurately compared with prepositions, but there was no difference between symbol formats. Older children guessed, named, and identified symbols more effectively than younger children. Animation enhances transparency and name agreement, especially for verbs, which reduces the instructional burden that comes with nontransparent symbols. Animation does not enhance identification accuracy. Verbs are easier to identify than prepositions. A developmental effect was observed for each measure. Limitations and implications for future research are discussed.
The preposition potential in formation of conjunctional means
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Konjuškevič Marija I.
2014-01-01
Full Text Available In the article the ability of preposition to form conjunction or its equivalent has been considered. The mechanism of denominalization has been shown on the Russian material with the involvement of the author’s observations on prepositions in the Belarusian language - the morphological form transformation in to the subordinate part of complex sentence. The author’s conception is: 1 the syntaxeme is the actant position in the sentence; 2 the syntaxeme consists of the formant (preposition + flexion and nominative component (substantive; 3 at the level of the complex sentence the same actant position may take the predicative unit (subordinate part of the complex sentence; 4 the formant of the predicative syntaxeme in transforms is the conjunctional combination “preposition + demonstrative pronoun that + subordinate part conjunction“. The preposition at case syntaxeme transformation in to predicative does not change its function, but it is included in to the conjunctional formant as one of the elements of more complex formant - conjunctional combination. Each element of the conjunctional combination fulfills its function: the preposition still forms the syntaxeme, but with more complex nominative component as predicative unit, the pronoun that is “flection“ of this nominative component (subordinate part, and the conjunction acts as the explicator, providing grammatical connection of the nominative component of syntaxeme with the “flexion“ and the preposition. It is noted that the mechanism and the results of denominalization depend on the syntaxemes repertoire and character and on the preposition meaning: the same preposition, with different meaning has different conjunctional potential. In to the mechanism of denominalization are involved categorematic names (classifiers, which initially are used as structural vocabulary for forming secondary prepositions, and together with them, for forming conjunctional combinations. The methods
The Production of Locative Prepositions by Young School Children.
Durkin, Kevin
1980-01-01
Reports results of a study to examine the extent to which young English children volunteer prepositions in a simple but structured task of spatial description. Results show that children 3 to 7 years have an extensive and often inventive grasp of locative prepositions. (Author/KC)
Rohlfing, Katharina J.; Nachtigäller, Kerstin
2016-01-01
The learning of spatial prepositions is assumed to be based on experience in space. In a slow mapping study, we investigated whether 31 German 28-month-old children could robustly learn the German spatial prepositions hinter [behind] and neben [next to] from pictures, and whether a narrative input can compensate for a lack of immediate experience in space. One group of children received pictures with a narrative input as a training to understand spatial prepositions. In two further groups, we controlled (a) for the narrative input by providing unconnected speech during the training and (b) for the learning material by training the children on toys rather than pictures. We assessed children’s understanding of spatial prepositions at three different time points: pretest, immediate test, and delayed posttest. Results showed improved word retention in children from the narrative but not the control group receiving unconnected speech. Neither of the trained groups succeeded in generalization to novel referents. Finally, all groups were instructed to deal with untrained material in the test to investigate the robustness of learning across tasks. None of the groups succeeded in this task transfer. PMID:27471479
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Katharina J. Rohlfing
2016-07-01
Full Text Available The learning of spatial prepositions is assumed to be based on experience in space. In a slow mapping study, we investigated whether 31 German 28-month-old children could robustly learn the German spatial prepositions hinter [behind] and neben [next to] from pictures, and whether a narrative input can compensate for a lack of immediate experience in space. One group of children received pictures with a narrative input as a training to understand spatial prepositions. In two further groups, we controlled for the (a for the narrative input by providing unconnected speech during the training and (b for the learning material by training the children on toys rather than pictures. We assessed children’s understanding of spatial prepositions at three different time points: pretest, immediate test and delayed posttest. Results showed improved word retention in children from the narrative but not the control group receiving unconnected speech. Neither of the trained groups succeeded in generalization to novel referents. Finally, all groups were instructed to deal with untrained material in the test to investigate the robustness of learning across tasks. None of the groups succeeded in this task transfer.
Rohlfing, Katharina J; Nachtigäller, Kerstin
2016-01-01
The learning of spatial prepositions is assumed to be based on experience in space. In a slow mapping study, we investigated whether 31 German 28-month-old children could robustly learn the German spatial prepositions hinter [behind] and neben [next to] from pictures, and whether a narrative input can compensate for a lack of immediate experience in space. One group of children received pictures with a narrative input as a training to understand spatial prepositions. In two further groups, we controlled (a) for the narrative input by providing unconnected speech during the training and (b) for the learning material by training the children on toys rather than pictures. We assessed children's understanding of spatial prepositions at three different time points: pretest, immediate test, and delayed posttest. Results showed improved word retention in children from the narrative but not the control group receiving unconnected speech. Neither of the trained groups succeeded in generalization to novel referents. Finally, all groups were instructed to deal with untrained material in the test to investigate the robustness of learning across tasks. None of the groups succeeded in this task transfer.
L1 Transfer in Post-Verbal Preposition: An Inter-level Comparison
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Samira Mollaei
2013-10-01
Full Text Available The study intended to investigate the well-known issue of L1 transfer in L2acquisition. The primary aim of this research was to compare the extent to which L1 transfer may take place in different developmental stages in L2 learning procedure. Persian learners of English have been observed to misuse a number of the prepositions with some of the verbs. Having scrutinized more than a hundred pieces of students’ writing assignments, the authors came up with a pattern of errors in this area. It was observed that the majority of these errors could be attributed to Persian: the learners’ choice of preposition mirror the corresponding case in their L1, Persian. Moreover, the pattern of mistakes was put to test to check whether these mistakes increase or decrease according to the level of proficiency of the learners. To this end, two groups of students, one in elementary and the other in intermediate level, were tested on their use of proper prepositions with different verbs and the results of these tests were compared to see whether any significant difference exists between the two groups of students. The results showed no significant difference between the students of the two proficiency levels.
Trainable Children Can Learn Adjectives, Polars, and Preposition!
And Others; Mitchell, Marlys
1977-01-01
A program utilizing a multisensory approach and active involvement was used to teach 12 trainable mentally retarded children (6-19 years old) the correct use of adjectives, polars, and locative prepositions. (DB)
A Rule-Based Approach To Prepositional Phrase Attachment Disambiguation
Brill, E; Brill, Eric; Resnik, Philip
1994-01-01
In this paper, we describe a new corpus-based approach to prepositional phrase attachment disambiguation, and present results comparing performance of this algorithm with other corpus-based approaches to this problem.
RUSSIAN PREPOSITION ПРИ IN ARKHANGELSK REGION
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I. B. Kachinskaya
2014-01-01
Full Text Available In the article preposition при in Arkhangelsk dialects is considered from the point of view of its syntactic role (use with certain cases, in its stressed and unstressed variants, and semantics: locative, komitative, temporal, possessive and comparative. It is proved that in the dialects preposition при have more meanings than in the Russian literary language; it is used not only with locative, but with genitive, dative, accusative cases.
The Comprehension and Use of English Spatial Prepositions
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罗平
2009-01-01
The traditional semantic accounts of spatial prepositions, mainlly focusing on the geometric relationship be-tween the locating object and the located object, are proved to be inadequate to explain the comprehension and use of spatial prepositions in all the .real situations. To compensate the deficiency, it is necessary to take into consideration the functional relationship between the Figure and the Ground, as well as the cognitive constraint on the choice of the Fig-ure and the Ground.
A unified approach to infinite-dimensional integration
Albeverio, S.; Mazzucchi, S.
2016-04-01
An approach to infinite-dimensional integration which unifies the case of oscillatory integrals and the case of probabilistic type integrals is presented. It provides a truly infinite-dimensional construction of integrals as linear functionals, as much as possible independent of the underlying topological and measure theoretical structure. Various applications are given, including, next to Feynman path integrals, Schrödinger and diffusion equations, as well as higher order hyperbolic and parabolic equations.
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Eva Engels
2009-01-01
These asymmetries will be accounted for within Fox and Pesetsky's (2003, 2005 cyclic linearization model, which requires non-string-vacuous movement to proceed through the left edge of Spell-out domains, deriving cross-linguistic variation as to Negative Shift from differences in the availability of these left-edge positions. Thereby, pied-piping is considered a last resort strategy, possible only if the prepositional complement cannot undergo Negative Shift on its own due to the unavailability of the relevant left-edge position.
Preposition accuracy on a sentence repetition task in school age Spanish-English bilinguals.
Taliancich-Klinger, Casey L; Bedore, Lisa M; Peña, Elizabeth D
2017-05-16
Preposition knowledge is important for academic success. The goal of this project was to examine how different variables such as English input and output, Spanish preposition score, mother education level, and age of English exposure (AoEE) may have played a role in children's preposition knowledge in English. 148 Spanish-English children between 7;0 and 9;11 produced prepositions in English and Spanish on a sentence repetition task from an experimental version of the Bilingual English Spanish Assessment Middle Extension (Peña, Bedore, Gutierrez-Clellen, Iglesias & Goldstein, in development). English input and output accounted for most of the variance in English preposition score. The importance of language-specific experiences in the development of prepositions is discussed. Competition for selection of appropriate prepositions in English and Spanish is discussed as potentially influencing low overall preposition scores in English and Spanish.
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Seyyed Behrooz HOSSEINI
2012-08-01
Full Text Available An area that has recently attracted increasing attention is providing feedback on learners’ writing accuracy through the Internet. However, research in this area has largely focused on synchronous communication, i.e., chatting, with fewer studies assessing asynchronous technologies, i.e., e-mailing. Therefore, this study investigates the effectiveness of asynchronous computer-mediated corrective feedback-explicit and implicit, on increasing the correct use of prepositions. Forty-five Iranian elementary EFL learners at the ILI in Tehran were randomly assigned to two experimental groups, receiving explicit and implicit corrective feedback respectively, and one control group receiving no corrective feedback. Each group included 15 participants. After the treatment, a post-test was administered to assess the probable increase in the correct use of prepositions for the experimental groups compared to the control group. Analysis of the results through a one-way ANOVA revealed that the experimental group 1 who received explicit corrective feedback significantly outperformed the experimental group 2 and the control group. The experimental group 2 who received implicit corrective feedback showed no significant improvement over the experimental group 1 and the control group. Computer-mediated communication, asynchronous CMC, synchronous CMC, the Internet, corrective feedback, e-mail, chat. Although the findings support the current view on feedback through technology, due to the scarcity of research, more investigation is merited as there is much to gain regarding this burgeoning field.
Locative and Directional Prepositions in Conceptual Spaces: The Role of Polar Convexity
Zwarts, J.; Gärdenfors, Peter
2016-01-01
We approach the semantics of prepositions from the perspective of conceptual spaces. Focusing on purely spatial locative and directional prepositions, we analyze both types of prepositions in terms of polar coordinates instead of Cartesian coordinates. This makes it possible to demonstrate that the
Institute of Scientific and Technical Information of China (English)
Rongping Zhang; Huanhai Fang; Qifeng Jiang
2008-01-01
BACKGROUND: Studies have shown that closed-class words, such as preposititions and conjunctions, induce a left anterior negativity (N280), indicating that N280 should be a specific component of the word category. OBJECTIVE: To observe if Chinese prepositions and verbs exhibit different linguistic functions, to determine whether they are processed by different neural systems, and to verify that N280 is a specific component. DESIGN, TIME AND SETTING: The observed neurolinguistics experiment was performed at Xuzhou Normal University between November and December 2006. PARTICIPANTS: Sixteen undergraduate students, comprising 8 females and 8 males, with no mental or neuropathological history, were selected. METHODS: A total of 15 verbs and prepositions were used as linguistic stimuli, and each verb and preposition was combined to produce four correct phrase collocations and four incorrect ones. MAIN OUTCOME MEASURES: Event-related potentials were recorded in the subjects while they read correct or incorrect phases flashed upon a video screen. RESULTS: Both verbs and prepositions elicited negativity at the frontal site in a 230-330 ms window, as well as at the fronto-temporal and central sites in a 350-500 ms window. Neither exhibited significant differences in peak [F(1, 15) = 0.144, P= 0.7101 and latency IF(1, 15) = 0.144, P= 0.7101. Both verbs and prepositions elicited negativity at the left and right hemisphere in a 270-400 ms window. CONCLUSION: There was no significant diffence between Chinese prepositions and verbs in the neural system process and N280 was not the specific component for closed-class words.
Prescribed Spatial Prepositions Influence How We Think about Time
Kranjec, Alexander; Cardillo, Eileen R.; Schmidt, Gwenda L.; Chatterjee, Anjan
2010-01-01
Prepositions combine with nouns flexibly when describing concrete locative relations (e.g. "at/on/in" the school) but are rigidly prescribed when paired with abstract concepts (e.g. "at" risk; "on" Wednesday; "in" trouble). In the former case they do linguistic work based on their discrete semantic qualities, and in the latter they appear to serve…
33 CFR 154.1130 - Requirements for prepositioned response equipment.
2010-07-01
... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Requirements for prepositioned response equipment. 154.1130 Section 154.1130 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF.... (7) Buckets, shovels, and various other tools. (8) Decontamination equipment. (9) Shoreline...
33 CFR 155.1130 - Requirements for prepositioned response equipment.
2010-07-01
... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Requirements for prepositioned response equipment. 155.1130 Section 155.1130 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF... various other tools; (8) Decontamination equipment; (9) Shoreline cleanup equipment; (10)...
The Relationship between Understanding Prepositions and Reading Comprehension.
Foust, Charles David
The major objective of this study was to determine whether understanding prepositions and the relationships they signal is related to reading comprehension. A sample of 127 fourth grade students was selected from three socioeconomic levels of the Columbus, (Ohio) Public Schools using a stratified random sampling technique. The subjects were…
Conroy, Mark A.; Antón-Méndez, Inés
2015-01-01
This study investigated whether second language (L2) learners of English could learn to produce stranded prepositions through structural priming. Structural priming is the tendency for speakers to repeat the structure of previously experienced sentences, without intention or conscious awareness of such behaviour, and is thought to be associated…
Conroy, Mark A.; Antón-Méndez, Inés
2015-01-01
This study investigated whether second language (L2) learners of English could learn to produce stranded prepositions through structural priming. Structural priming is the tendency for speakers to repeat the structure of previously experienced sentences, without intention or conscious awareness of such behaviour, and is thought to be associated…
La preposición cero (Zero preposition
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Andrés Gallardo
2012-06-01
Full Text Available El llamado "signo cero" tiene una realidad funcional y semántica en la lengua en aquellos casos en que una ausencia contrasta de modo sistemático con una presencia en un contexto dado. En el caso concretoel análisis sintáctico, Ambrosio Rabanales (1966 ha postulado que en el complemento directo "sin preposición" de hecho hay un contraste recurrente, sistemático y significativo con la preposición "a". El presente trabajo sistematiza los planteamientos de Rabanales y ofrece ejemplos y argumentos para avalar la existencia de esta "preposición cero". (The notion of "zero sign" is both functionally and semantically valid in those cases where an absence (a silence systematically contrasts with a presence in a given context. Rabanales (1966 has posited the existence in Spanish of a recurrent "zero preposition" in the direct object, when the preposition "a" contrasts with an absence of a preposition. This paper offers cases and analyses that corroborate his position.
2015-06-01
reporting requirement.3 In our prior reports, we identified a number of long - term and ongoing challenges to DOD’s prepositioned stocks related to strategic...prepositioned stocks and the extent to which these shortfalls contribute to operational risk . View GAO-15-570. For more information, contact Cary Russell...shortfalls, Page 5 GAO-15-570 Prepositioned Stocks risks , and mitigation efforts. We also compared DOD’s definitions of prepositioning and
Preposition Entries in UK Monolingual Learners' Dictionaries: Problems and Possible Solutions.
Lindstromberg, Seth
2001-01-01
Presents a selective examination of the entries of the preposition "on" in five advanced learners' dictionaries published in the United Kingdom. The principal concern is the preposition "on" as a signifier of contact with a surface--especially an upper surface. (Author/VWL)
Applying Cognitive Linguistics to Teaching the Spanish Prepositions "Por" and "Para"
Lam, Yvonne
2009-01-01
L2 prepositions are traditionally taught in a non-explanatory manner by having students learn each use individually. This study examines the effectiveness of an alternative explanatory approach based on cognitive linguistics, which considers the multiple uses of a preposition as related. Consequently, learners can be shown a general schema that…
Lafford, Barbara A.; Ryan, John M.
1995-01-01
Examination of the development of form/function relations of the prepositions "por" and "para" at different levels of proficiency in the interlanguage of study-abroad students in Granada, Spain, revealed "noncanonical" as well as "canonical" uses of these prepositions. The most common noncanonical uses were…
The Ability of Hearing Impaired Children to Comprehend the Semantics of English Prepositions.
Kluwin, Thomas N.
Hearing impaired adolescents were administered one of four tests of syntax in preposition usage. Results indicated a clear developmental sequence: generally prepositions are first acquired in locative phrases, then as temporals, and then as manner relationships. The acquisition process is detailed. The author concludes that the complexity and…
Unifying Prepositions and Prefixes in Russian: Conceptual structure versus syntax
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Inna Tolskaya
2007-12-01
Full Text Available This paper is an attempt to unify the polysemous verbal prefixes and prepositions in Russian. At first glance, the variety of possible denotations of a given prefix might appear a chaotic set of idiomatic meanings, e.g., the prefix za- may refer to beginning of an action, movement to a position behind an object, a brief deviation from a path, completion of an action, while the corresponding preposition za can mean ‘behind,’ ‘after,’ ‘for,’ ‘in’ (like in ‘in an hour’, ‘at’ (like in ‘at the table’. I will propose a unified analysis, where the differences in meaning are claimed to arise from different syntactic positions, while the lexical entry of a prefix remains the same. The main focus is on the verbs of motion due to the consistent duality displayed by the prefix meanings when added to directional and non-directional motion verbs. It will turn out that many prefixes appear to modify path when added onto a directional motion verb and to refer to movement in time with non-directional motion verbs. This semantic distinction corresponds to distinct sets of syntactic properties, specific for each set of prefixes. These two classes of prefixes correspond to the lexical versus superlexical distinction. However, a tripartite division will emerge in each set, corresponding to source, path, and goal of motion (FROM, VIA and TO for lexical prefixes and to initiation, process and result for superlexical prefixes. This leads to the suggestion that the syntactic representation of a VP contains at least six distinct nodes for the Russian verbal prefixes, each characterized by predictable semantic and syntactic properties. The same prefix with a consistent meaning, shared with the corresponding preposition, will receive part of its denotation from the syntactic head it attaches to, thus allowing the polysemy to arise from position, rather than from arbitrary homophony. Thus, conceptual structure will be unified with syntax.
The acquisition of prepositions in Serbian: Factors and mechanisms of development
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Savić Maja
2004-01-01
Full Text Available The study proceeds from the results of the previous studies showing that the distributional characteristics (frequency of language input are crucial for the acquisition of prepositions (Savić & Anđelković, 2005, in preparation. The authors analyze deviations in the distribution of prepositions in children's spontaneous speech from the prediction made on the basis of the distributional characteristics of prepositions in adult language. The results show that, in comparison with adult language, only the prepositions "kod" (at, by, near, beside and "sa" (with, from, off deviate from the prediction. It was also found out that the unexpectedly early and frequent use of the preposition "kod" in child speech stemmed from the frequent use of this preposition in child-directed speech. On the other hand, the preposition "sa", which is very frequent in child-directed speech, is not present in children's production at the earliest age, because its homonymy makes it cognitively complex. The analysis of the reasons for such a deviation provided a basis for the discussion about the possible factors and mechanisms of development: the distributional characteristics of adult language are the major factor of acquisition, but the effects of conceptual and structural complexity were recorded as well.
One sententional model with the prepositional accusativ AS proleptic subject
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Antonić Ivana
2010-01-01
Full Text Available The topic of this paper is a model of two-predicate sentence in which with the matrix predication, which makes the so-called sentential-transitive verb, there appears accusative with the preposition ZA (for and the complement clause with the conjunction DA (that. On the basis of such formal structure, it represents a sentence with two objects - one non-propositional object in the form of the prepositional accusative - indirect type and the other propositional object, sententially formalized. Conducted analysis showed that this is a specific sentential model which could be viewed at several relevant levels: at the syntactic, syntactic-semantic, semantic and pragmatic level, because only that way one can view all its features. It turned out that the status of complement clause was not problematic - it is a propositional-sentential object, obligatorily postponed both to the basic predication and to the prepositional accusative, but the prepositional accusative, though placed in the matrix sentence, is not in the direct correlation with its predication, so it is not its object, but has the function of PROLEPTIC SUBJECT of the complement clause (in the periphrasis test, the prepositional accusative is turned into nominative and is placed inside the complement clause, and semantically it is a pseudoagent: the bearer of the feature expressed in the predicate of the complement clause whose referent most frequently has the feature ‘alive’ ‘human’, but can also be abstract. Therefore, the verbs which appear in the matrix predication are the verbs of simple, obligatorily propositional-sentential transitivity which in addition also belong to specific semantic classes: it is the case with the verbs of cognition: primarily the basic verb of having knowledge znati (know and the verbs of acquiring knowledge saznati, doznati (get to know; the verbs of a different degree of certainty about the factual situation: the verb garantovati (guarantee and the
Prepositional Phrase Attachment through a Backed-Off Model
Collins, M; Collins, Michael; Brooks, James
1995-01-01
Recent work has considered corpus-based or statistical approaches to the problem of prepositional phrase attachment ambiguity. Typically, ambiguous verb phrases of the form {v np1 p np2} are resolved through a model which considers values of the four head words (v, n1, p and n2). This paper shows that the problem is analogous to n-gram language models in speech recognition, and that one of the most common methods for language modeling, the backed-off estimate, is applicable. Results on Wall Street Journal data of 84.5% accuracy are obtained using this method. A surprising result is the importance of low-count events - ignoring events which occur less than 5 times in training data reduces performance to 81.6%.
A double dissociation between the meanings of action verbs and locative prepositions.
Kemmerer, David; Tranel, Daniel
2003-10-01
Abstract We describe two patients who manifested opposite patterns of performance on test batteries that evaluated production, comprehension, and semantic analysis of action verbs on the one hand (e.g. smile, wave, run ) and locative prepositions on the other (e.g. in, on, over ). JP failed all of the verb tests but passed all of the preposition tests, suggesting impaired knowledge of the meanings of action verbs but intact knowledge of the meanings of locative prepositions. In contrast, RR exhibited the reverse dissociation: he passed many of the verb tests but failed all of the preposition tests, suggesting mostly intact knowledge of the meanings of action verbs but impaired knowledge of the meanings of locative prepositions. This behavioral double dissociation reflects the fact that the two categories of words differ along several conceptual parameters. To a large extent, the patients exhibited a neuroanatomical double dissociation as well, since JP's lesion is predominantly in the left frontal operculum whereas RR's is predominantly in the left inferior parietal lobe and the posterior superior temporal region. This constitutes preliminary evidence that the meanings of action verbs and locative prepositions are represented by partially independent neural networks in the brain.
Hambarzumjan, Rusanna
1974-01-01
Making this distinction is difficult because German here deals in prepositional phrases. More precise criteria for distinguishing may be expected from dependence grammar, and from application of the concepts of governance ("Rektion") and valence. Reference is made to experiments by J. D. Apresjan. (Text is in German.) (IFS/WGA)
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Larisa Mikhaylovna Generalova
2015-11-01
Full Text Available The article presents locative prepositions as tools of space conceptualization and verbalization in the German language. The author states that there is some close interlink between two concepts – Man and space, and it plays an initial role in the organization of human knowledge. On offering the statement presented above, the author considers specificity of situational perception of spatial relationships that are conceptualized in a particular language. The suggested correlations of spatial relationships: location in space, transporting in space as a result of the movement and the movement itself included, helps the author to prove that spatial relationships may be differentiated as dynamic or static. It is confirmed that the main factors that influence the choice of the locative prepositions, viewed as the markers of spatial relationships, may include the measurability of the object relations, its functional qualities, and principles of visual perception that guard the specificity of person's orientation in space. It is proved that the native German speakers prefer using the preposition in to verbalize the situations of internal space and choose the preposition an to verbalize the situations of external space. The author concludes that the choice of the locative preposition for denoting space depends on the speaker's intentions and the ontological focus in which the speaker wishes to describe spatial relations.
Translation of Rhetoric in Arabic Preposition in The Text of Al-Qur’an
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Azman Che Mat
2016-07-01
Full Text Available Preposition was a word that completes the meaning of the verb and noun in the sentence structure of Arabic. The use of prepositions in Arabic was truly significant in understanding the Arabic text, especially holy texts. The question was why prepositions were used in sentences such, whereas the other joints could also give the same meaning? Article presented an analysis of syntax-semantics of prepositions في Fi and علىcAla in al-Quran al-Karim across science of Arabic rhetoric (Balagha. Data were restricted to partial phrase في الضلال and على الهدى ever discussed by Ibn Athir. There are 29 places in the Quran that mention في الضلال and 6 points for على الهدى. Critical analysis based on the discipline of linguistics is expected to expose the use of prepositions in Arabic from the precision and beauty of the Arabic language itself. Summary of the study suggest that research on elements of the rhetoric says that other reasonable tasks highlighted in subsequent studies.
2015-06-12
Disaster Assistance PREPO Prepositioned stocks SCM Supply Chain Management STRAT AIR Strategic Airlift STRAT SEA Strategic Sealift UN...prepositioning sources. Important outcomes of this examination identify advantages and disadvantages of logistical enablers i.e. supply chain management and...interest to the study. Furthermore, the case studies recognized above continues to identify the advantages and disadvantages associated with HADR
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Minna Lehtonen
Full Text Available We tested the hypothesis that lexical-semantic access of inflected words is governed by the word stem. Object drawings overlaid with a dot/arrow marking position/movement were matched with corresponding linguistic expressions like "from the house". To test whether the stem dominates lexical-semantic access irrespective of its position, we used Swedish prepositional phrases (locative information via preposition immediately preceding the stem or Finnish case-inflected words (locative information via suffix immediately following the stem. Both in monolingual Swedish and in bilingual Finnish-Swedish speakers, correct stems with incorrect prepositions/case-endings were hardest to reject. This finding supports the view that the stem is indeed the dominant unit in meaning access of inflected words.
Lehtonen, Minna; Harrer, Gabor; Wande, Erling; Laine, Matti
2014-01-01
We tested the hypothesis that lexical-semantic access of inflected words is governed by the word stem. Object drawings overlaid with a dot/arrow marking position/movement were matched with corresponding linguistic expressions like "from the house". To test whether the stem dominates lexical-semantic access irrespective of its position, we used Swedish prepositional phrases (locative information via preposition immediately preceding the stem) or Finnish case-inflected words (locative information via suffix immediately following the stem). Both in monolingual Swedish and in bilingual Finnish-Swedish speakers, correct stems with incorrect prepositions/case-endings were hardest to reject. This finding supports the view that the stem is indeed the dominant unit in meaning access of inflected words.
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Elena A. Kameneva
2017-03-01
Full Text Available This article is devoted to the revealing of the essence of language and cognitive processes behind the secondary nomination of expression of the conceptual category of «attitude» by derivative prepositions in modern English. The study addresses the issue of formation of prepositions in the diachronic aspect, as well as their status in the general classification of parts of speech in modern linguistics, deals with the phenomenon of secondary nomination, described by semantic features data implying the method of cognitive modeling, namely propositional modeling method.
A Constructivist View of Teaching——Taking Preposition “at” as an Example
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马晓惠
2015-01-01
Language is a dynamically evolving system. A word in its long development will little increasingly extend from a simplex meaning to a number of meanings,resulting in what is generally referred to as lexical polysemy. How to learn these words effectively? In this paper,a constructivist view of teaching and corpus were used to present how to teaching preposition effectively.
A Developmental Study of Prepositional Phrases in Hebrew Written Text Construction
Brandes, Gilad; Ravid, Dorit
2017-01-01
Prepositional phrases (PPs) are considered an important feature of mature written expression. However, little is known about the development of PPs during the school years. The study examined the use of PPs in 160 narrative and expository texts, written by Hebrew-users in grades 4, 7, and 11, and adults. PPs were identified, counted, and…
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Thomas E. Lang
2016-01-01
Full Text Available Events such as natural disasters or combat operations require a rapid response capability from humanitarian service providers and military organizations. Such organizations can decrease their response times through the prepositioning of materiel in forward warehouses, reducing the time needed to transport items to the site of need. A particular challenge to the development of networks of prepositioning warehouses is that the warehouses themselves may be impacted by the very disruptions that drive demands for prepositioned materials. The objective of this research is to identify a reliable network posture, which is a set of utilized facility locations and an allocation of materiel to those locations, that can satisfy time-sensitive delivery requirements to potential locations around the globe, ensuring that demands can be satisfied even in the event of loss of access to a subset of storage sites (along with said sites’ materiel, all at minimum total cost. We develop new optimization formulations to account for differing levels of network reliability, all reflecting the time-sensitive environment faced by rapid response operations. We demonstrate an application of this methodology using rapid response material prepositioned by the US Air Force.
More on the Acquisition of Locative Prepositions: An Analysis of Hebrew Data.
Dromi, Esther
1979-01-01
The acquisition and use of locative prepositions by 30 Hebrew-speaking children aged two to three years was investigated in a cross-sectional study. Both the order of acquisition and the role of linguistic complexity in determining that order were examined. (Author/AM)
Cerron-Palomino Lopez, Alvaro
2010-01-01
This dissertation is a variationist account of two non-standard relative clause (RC) structures in Spanish: resumptive pronouns (RPs) and prepositional-phrase (PP) chopping. Previous typological studies considered RP explanations based on difficulty of processing (Hawkins, 1994), while Spanish-specific quantitative studies proposed a number of…
Softened gravity and the extension of the standard model up to infinite energy
Giudice, Gian F.; Isidori, Gino; Salvio, Alberto; Strumia, Alessandro
2015-02-01
Attempts to solve naturalness by having the weak scale as the only breaking of classical scale invariance have to deal with two severe difficulties: gravity and the absence of Landau poles. We show that solutions to the first problem require premature modifications of gravity at scales no larger than 1011 GeV, while the second problem calls for many new particles at the weak scale. To build models that fulfill these properties, we classify 4- dimensional Quantum Field Theories that satisfy Total Asymptotic Freedom (TAF): the theory holds up to infinite energy, where all coupling constants flow to zero. We develop a technique to identify such theories and determine their low-energy predictions. Since the Standard Model turns out to be asymptotically free only under the unphysical conditions g 1 = 0, M t = 186 GeV, M τ = 0, M h = 163 GeV, we explore some of its weak-scale extensions that satisfy the requirements for TAF.
2012-09-20
analysis by having two analysts independently compare the prepositioned materiel and equipment information in DOD’s fiscal year 2011 report with the 12...Source: GAO analysis . We assessed five of the elements as being addressed because the information provided in the report was responsive to the...report did not include Air Force munitions, auxiliary fuel tanks, missile launchers, pylons, ejector racks, and adapters, medical stocks, fuel, and
The semantics of the preposition ὑπέρ in Homeric Greek
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Chiara Zanchi
2016-06-01
Full Text Available Prepositions are highly polysemic words. In Homeric Greek, they either retain a number of meanings that are lost in post-Homeric Greek, or have not yet developed other meanings that later become conventionalized. In this paper, I analyze the semantics of the preposition ὑπέρ in Homeric Greek using the terminology of cognitive grammar. In addition, I use the model of structured polysemy in order to detect the original meaning of ὑπέρ, and to distinguish, among all its meanings, those triggered by the context from those independently stored in the mind of speakers. While making such a distinction, I also take into account both the semantic development of ὑπέρ in post-Homeric Greek, and the interaction between preposition and morphological case. I then arrange the distinct meanings in a semantic network, and link them directly or indirectly to the original spatial meaning. At the end, I show how further spatial or abstract meanings develop from the original meaning.
Codification of Some Usage Cases of Lithuanian Language Cases and Prepositions
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Vidas Valskys
2013-12-01
Full Text Available The present article is related to analysing several cases of the relationship between usage of cases and prepositions with the norms indicated in the syntax booklet “Language Advice”. The article is a discussion regarding some normative evaluation aspects regarding the usage of the preposition “greta” (next to having the meaning of exception (exclusion, usage of the adjectivised instrumental case in constructions with the verb “(pavirsti” (to turn, to become, to grow, to get and some cases of the postposition “dėka” (with the help of. Utmost attention is paid to discussion of (nonnormative evaluation of some constructions including usage of the said cases and prepositions that are doubtful in some aspects, their presentation in normative sources and further prospects related to further codification of the said cases. The article is based on vast empirical materials: examples from the “Corpus of the Contemporary Lithuanian”, the Internet and other texts related to contemporary usage.
Softened Gravity and the Extension of the Standard Model up to Infinite Energy
Giudice, Gian F; Salvio, Alberto; Strumia, Alessandro
2015-01-01
Attempts to solve naturalness by having the weak scale as the only breaking of classical scale invariance have to deal with two severe difficulties: gravity and the absence of Landau poles. We show that solutions to the first problem require premature modifications of gravity at scales no larger than $10^{11}$ GeV, while the second problem calls for many new particles at the weak scale. To build models that fulfil these properties, we classify 4-dimensional Quantum Field Theories that satisfy Total Asymptotic Freedom (TAF): the theory holds up to infinite energy, where all coupling constants flow to zero. We develop a technique to identify such theories and determine their low-energy predictions. Since the Standard Model turns out to be asymptotically free only under the unphysical conditions $g_1 = 0$, $M_t = 186$ GeV, $M_\\tau = 0$, $M_h = 163$ GeV, we explore some of its weak-scale extensions that satisfy the requirements for TAF.
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Serhan Duran
2012-08-01
Full Text Available The increasing number of natural disasters in the last decade necessitates the increase in capacity and agility while delivering humanitarian relief. A common logistics strategy used by humanitarian organizations to respond this need is the establishment of pre-positioning warehouse networks. In the pre-positioning strategy, critical relief inventories are located near the regions at which they will be needed in advance of the onset of the disaster. Therefore, pre-positioning reduces the response time by totally or partially eliminating the procurement phase and increasing the availability of relief items just after the disaster strikes. Once the pre-positioning warehouse locations are decided and warehouses on those locations become operational, they will be in use for a long time. Therefore, the chosen locations should be robust enough to enable extensions, and to cope with changing trends in disaster types, locations and magnitudes. In this study, we analyze the effects of natural disaster trends on the expansion plan of pre-positioning warehouse network implemented by CARE International. We utilize a facility location model to identify the additional warehouse location(s for relief items to be stored as an extension of the current warehouse network operated by CARE International, considering changing natural disaster trends observed over the past three decades.
Bozkurt, Melda; Duran, Serhan
2012-08-01
The increasing number of natural disasters in the last decade necessitates the increase in capacity and agility while delivering humanitarian relief. A common logistics strategy used by humanitarian organizations to respond this need is the establishment of pre-positioning warehouse networks. In the pre-positioning strategy, critical relief inventories are located near the regions at which they will be needed in advance of the onset of the disaster. Therefore, pre-positioning reduces the response time by totally or partially eliminating the procurement phase and increasing the availability of relief items just after the disaster strikes. Once the pre-positioning warehouse locations are decided and warehouses on those locations become operational, they will be in use for a long time. Therefore, the chosen locations should be robust enough to enable extensions, and to cope with changing trends in disaster types, locations and magnitudes. In this study, we analyze the effects of natural disaster trends on the expansion plan of pre-positioning warehouse network implemented by CARE International. We utilize a facility location model to identify the additional warehouse location(s) for relief items to be stored as an extension of the current warehouse network operated by CARE International, considering changing natural disaster trends observed over the past three decades.
Loke, Darina Lokeman; Ali, Juliana; Anthony, Norin Norain Zulkifli
2013-01-01
This article presents a corpus-based investigation on English prepositions of time presented in the argumentative essays of Form 4 and Form 5 Malaysian secondary students in the MCSAW corpus. The aims were to find out the distribution patterns and the common errors in the use of preposition of time, "on" and "at". This corpus…
Dromi, Esther
The use of locative prepositions in the spontaneous speech of 30 Hebrew speaking children two to three years old was studied. The rank order of locative prepositions is determined according to the correct use in obligatory contexts, and tentative conclusions are drawn concerning the order of acquisition of these terms in Hebrew. An attempt is made…
Favrot, Scott D.; Kwak, Thomas J.
2016-01-01
Potamodromy (i.e., migration entirely in freshwater) is a common life history strategy of North American lotic fishes, and efficient sampling methods for potamodromous fishes are needed to formulate conservation and management decisions. Many potamodromous fishes inhabit medium-sized rivers and are mobile during spawning migrations, which complicates sampling with conventional gears (e.g., nets and electrofishing). We compared the efficiency of a passive migration technique (resistance board weirs) and an active technique (prepositioned areal electrofishers; [PAEs]) for sampling migrating potamodromous fishes in Valley River, a southern Appalachian Mountain river, from March through July 2006 and 2007. A total of 35 fish species from 10 families were collected, 32 species by PAE and 19 species by weir. Species richness and diversity were higher for PAE catch, and species dominance (i.e., proportion of assemblage composed of the three most abundant species) was higher for weir catch. Prepositioned areal electrofisher catch by number was considerably higher than weir catch, but biomass was lower for PAE catch. Weir catch decreased following the spawning migration, while PAEs continued to collect fish. Sampling bias associated with water velocity was detected for PAEs, but not weirs, and neither gear demonstrated depth bias in wadeable reaches. Mean fish mortality from PAEs was five times greater than that from weirs. Catch efficiency and composition comparisons indicated that weirs were effective at documenting migration chronology, sampling nocturnal migration, and yielding samples unbiased by water velocity or habitat, with low mortality. Prepositioned areal electrofishers are an appropriate sampling technique for seasonal fish occupancy objectives, while weirs are more suitable for quantitatively describing spawning migrations. Our comparative results may guide fisheries scientists in selecting an appropriate sampling gear and regime for research, monitoring
Applying cognitive linguistics to pedagogical grammar: the english prepositions of verticality
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Vyvyan Evans
2005-01-01
Full Text Available In this paper, we illustrate the merit of applying insights from Cognitive Linguistics to pedagogical grammar. We do so by examining English prepositions, long assumed to be one of the most difficult areas of acquisition for second language learners. The approach to the semantics of English prepositions we present is that developed in Evans and Tyler (2004a, b, In prep. and Tyler and Evans (2001a, 2003. This account offers the following insights: 1 the concepts encoded by prepositions are image-schematic in nature and thus have an embodied basis. In other words, prepositions are not appropriately modelled as constituting linguistic propositions or semantic feature bundles (the received view in formal linguistics; 2 an English preposition encodes an abstract mental idealization of a spatial relation, derived from more specific spatial scenes. This forms the primary meaning component of a semantic network; 3 the idealized spatial relation also encodes a functional element, which derives from the way spatial relations are salient and relevant for human function and interaction with the physical environment; and 4 the additional senses in the semantic network have been extended in systematic, constrained ways. We discuss two key principles of extension: ways of viewing a spatial scene and experiential correlation. We demonstrate the usefulness of a Cognitive Linguistics approach by examining a few aspects of the lexicalization patterns exhibited by in and the four English prepositions of verticality, over, above, under and below. These prepositions provide good evidence that prepositional meanings are extended from the spatial to abstract domains in ways that are regular and constrained. We conclude that a Cognitive Linguistics approach to prepositions provides a more accurate, systematic account that, in turn, offers the basis for a more coherent, learnable presentation of this hitherto seemingly arbitrary aspect of English grammar.Neste artigo
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Ljiljana Bibović
1984-12-01
Full Text Available Sentential complements occurring with prepositions in English are traditiona ly known as gerunds, verbal forms in -ing having the functions of both nouns and verbs.In transformational-generative grammar they are interpreted as ,embedded sentences in the underlying structure containing their own subject, which may be either deleted under coreference with the subject of the matrix sentence or overtly expressed, as in 1. (aJohn is happy about leaving (b John is happy about Mary leaving.
A corpus-based study on the spatial metaphor--take the preposition under as an example
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舒晗
2015-01-01
This study focuses on the preposition under when it is used in a metaphorical expression. The data for the spatial metaphorical use of the word under were colected from the Corpus of Contemporary American English (COCA). This paper aims to analyze the actual cognitive metaphorical use of the word under with the corpus colected.
Al-Qudah, Ayat Khalid
2013-01-01
This study aimed to identify the acquisition of some selected prepositions of time by English major undergraduates at Balqa Applied University in Jordan and to reveal any significant differences among their acquisition attributed to the academic level (1st, 2nd, 3rd and 4th year levels) and to studying "English Basic Grammar" course. A…
Ormel, Ellen; Hermans, Daan; Knoors, Harry; Verhoeven, Ludo
2012-01-01
In this study, we investigate whether preposition stranding, a stereotypical non-standard feature of North American French, results from convergence with English, and the role of bilingual code-switchers in its adoption and diffusion. Establishing strict criteria for the validation of contact-induced change, we make use of the comparative…
Otheguy, Ricardo
2012-01-01
Prepositions can be found with and without adjacent complements in many forms of popular spoken French. The alternation appears in main clauses ("il veut pas payer pour ca [approximately] il veut pas payer pour" "he doesn't want to pay for [it]") and, though with a more restricted social and geographic distribution, in relative…
2016-04-01
possibility of higher repair costs in the long run. The Army and Air Force Prepositioned Stock Programs Reported Assumed Risks but Did Not...in the quality of information DOD provided on costs for completely reconstituting prepositioned stocks . Further, GAO found that risks which DOD...have reported on a number of ongoing and long - term challenges in DOD’s annual reports to Congress related to strategic planning, joint service
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Philip R. Minlos
2012-12-01
Full Text Available This paper discusses a statistical correlation between possessive prenominal placement and the presence of a preposition. The data from mediaeval Russian, Czech, and Croatian are validated against standard statistical measures (chisquare (X2 test and phi (φ coefficient. Different explanations for the correlation are proposed; the most natural and simple one links the syntactic feature with the phonetic chunking of preposition and adjacent possessive, strengthened by their frequent co-occurence.
From explosive to infinite-order transitions on a hyperbolic network.
Singh, Vijay; Brunson, C T; Boettcher, Stefan
2014-11-01
We analyze the phase transitions that emerge from the recursive design of certain hyperbolic networks that includes, for instance, a discontinuous ("explosive") transition in ordinary percolation. To this end, we solve the q-state Potts model in the analytic continuation for noninteger q with the real-space renormalization group. We find exact expressions for this one-parameter family of models that describe the dramatic transformation of the transition. In particular, this variation in q shows that the discontinuous transition is generic in the regime q2 the transition immediately transforms into an infinitely smooth order parameter of the Berezinskii-Kosterlitz-Thouless type.
Spacetime Foam: From Entropy and Holography to Infinite Statistics and Nonlocality
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Y. Jack Ng
2008-10-01
Full Text Available Due to quantum fluctuations, spacetime is foamy on small scales. The degree of foaminess is found to be consistent with holography, a principle prefigured in the physics of black hole entropy. It has bearing on the ultimate accuracies of clocks and measurements and the physics of quantum computation. Consistent with existing archived data on active galactic nuclei from the Hubble Space Telescope, the application of the holographic spacetime foam model to cosmology requires the existence of dark energy which, we argue, is composed of an enormous number of inert Ã¢Â€ÂœparticlesÃ¢Â€Â of extremely long wavelength. We suggest that these Ã¢Â€ÂœparticlesÃ¢Â€Â obey infinite statistics in which all representations of the particle permutation group can occur, and that the nonlocality present in systems obeying infinite statistics may be related to the nonlocality present in holographic theories. We also propose to detect spacetime foam by looking for halos in the images of distant quasars, and argue that it does not modify the GZK cutoff in the ultra-high energy cosmic ray spectrum and its contributions to time-offlight differences of high energy gamma rays from distant GRB are too small to be detectable.
英语中的介词及隐喻意义探讨%Discussion on Prepositions in English and Their Metaphorical Meanings
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齐莉
2015-01-01
The preposition is an important part of English language , and the metaphor plays a critical role in learning English prepositions . To clear the metaphorical meanings of English preposi‐tions ,firstly ,this paper defines the original spatial meaning of English prepositions .Then it gives a de‐tailed analysis on the cognition of metaphorical meanings of English prepositions .Finally ,it analyzes the metaphorical rhetorical effect of prepositions .The author hopes that this paper can help English learners understand the importance of metaphorical competence and strength the development of metaphorical competence in English learning .%介词是英语语言的重要组成部分，而隐喻对学习者学习英语介词具有非常重要的作用。为明确英语介词的隐喻意义，文章首先对英语介词的空间愿意进行释义，其次，对英语介词的隐喻意义认知进行详细的分析，最后围绕隐喻介词的修辞效果进行了详细的分析，希望可以使英语学习者明确隐喻能力的重要性，并加强英语学习中隐喻能力的培养。
Two ways of encoding location in Greek: Locative applicatives and prepositions
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Evangelia Daskalaki
2016-07-01
Full Text Available Cross-linguistically, oblique theta roles such as location can be encoded by both adpositions and applicative morphemes. In this paper we argue that Standard Modern Greek (SMG, a language that encodes location primarily with prepositions, has a set of morphologically complex predicates that consist of an intransitive verbal root and a locative prefix, and behave like locative applicative constructions. We argue that this prefix is a low applicative head, licensing the addition of a locative DP argument to the intransitive verbal root. Specifically, this applicative head: (i case-and theta-licenses the added argument, but being void of phi-features, it blocks its cliticization; (ii is distinct from a homophonous free standing P semantically and syntactically; (iii is undergoing grammaticalization, as evidenced by the emergence of a novel configuration, in which the locative predicates combine with locative PPs that retrieve semantic and syntactic information of the locative prefix. Our findings show that applicatives may come in various flavors, that a language may use both analytic and synthetic devices to encode location which are not derivationally related, and that lexical/inherent case does not necessarily reduce to a PP structure.
Berretta, Monica
A generative semantic model for a componential analysis of prepositions in Italian sentences is described and critiqued. According to the model, a sentence is analyzed in terms of a "predicate" plus one or more "arguments." The model emphasizes the semantic role of prepositions and regards this role as the basis for a syntactic analysis of…
Berretta, Monica
A generative semantic model for a componential analysis of prepositions in Italian sentences is described and critiqued. According to the model, a sentence is analyzed in terms of a "predicate" plus one or more "arguments." The model emphasizes the semantic role of prepositions and regards this role as the basis for a syntactic…
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Suzan TOKATLI
2005-06-01
Full Text Available Combining sentences one by other by preposition comes to Turkish from endo-european languages. Preposition ki that combines the sub-clause to the main-clause as well used like adjective to a noun has entered Turkish from Perisain Language. Thus Turkish question pronoun kim had been used as ki until seventeenth and eighteenth centuries. Specially takes place in Ancient Anatolian Turkish texts. In this article we try to spot light on the using of ki and kim from point of view of changing the meanings. Examples are taken from Ancient Anatolian Turkish texts.
Schlosser, Ralf W; Shane, Howard; Sorce, James; Koul, Rajinder; Bloomfield, Emma
2011-09-01
The purpose of this study was to identify graphic symbols for verbs and prepositions that were performing and underperforming in static and animated formats in a recent experiment on the effects of animation on transparency, name agreement, and identification of graphic symbols. Variable-specific criteria were developed in order to define when a symbol is considered to be performing in terms of its transparency, name agreement, and identification accuracy. Additionally, across-variable heuristic criteria were developed that allowed classification of symbols into four categories: (a) performing exceptionally, (b) performing effectively, (c) performing adequately, and (d) performing inadequately. These criteria were applied to 24 symbols for verbs and 8 symbols for prepositions in both animated and static formats. Results indicated that the vast majority of the symbols performed adequately or better while a few did not. Potential reasons as to why some of the symbols may have underperformed are discussed. Where appropriate, implications for modifying existing symbols and future research are drawn. Although the fact that the heuristic criteria were developed post-hoc is discussed as a limitation, the benefits of the proposed categories bode well for future applications.
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廖书娟; 石静; 王静; 李敏
2015-01-01
为分析助产专业核心课程前置对学生专业核心胜任力及职业意愿的影响,采用助产士核心胜任力量表对助产专业课程前置试验班及常规对照班学生进行核心胜任力评价,同时使用自制问卷收集其一般资料、成为助产士的意愿及核心课程理论成绩,分析试验组与对照组上述指标的差异性.路径分析模型结果显示,助产专业核心课程前置有利于提高学生专业核心胜任力以及增强学生职业选择成为助产士的意愿.%To analyze the impacts of core specialized courses preposition on the core competency and career willingness of midwifery students, this study evaluated the core competency of students both of core experimental class with core specialized courses preposition and conventional comparative class by using the "midwife core competency scale", meanwhile collected their demographic data and the willingness of being a midwife and the scores of core courses by using self-developed questionnaire, and then analyzed the difference between two groups in the indexes mentioned above. The results through pathway analyzing showed, the core courses preposition of midwifery specialty will improve the core professional competency and the vocational willingness to be midwife of students majoring midwifery specialty.
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Klaus eKessler
2010-12-01
Full Text Available We set out to distinguish level 1 (VPT-1 and level 2 (VPT-2 perspective taking with respect to the embodied nature of the underlying processes as well as to investigate their dependence or independence of response modality (motor vs. verbal. While VPT-1 reflects understanding of what lies within someone else’s line of sight, VPT-2 involves mentally adopting someone else’s spatial point of view. Perspective taking is a high-level conscious and deliberate mental transformation that is crucially placed at the convergence of perception, mental imagery, communication, and even theory of mind in the case of VPT-2. The differences between VPT-1 and VPT-2 mark a qualitative boundary between humans and apes, with the latter being capable of VPT-1 but not of VPT-2. However, our recent data showed that VPT-2 is best conceptualised as the deliberate simulation or emulation of a movement, thus underpinning its embodied origins. In the work presented here we compared VPT-2 to VPT-1 and found that VPT-1 is not at all, or very differently embodied. In a second experiment we replicated the qualitatively different patterns for VPT-1 and VPT-2 with verbal responses that employed spatial prepositions. We conclude that VPT-1 is the cognitive process that subserves verbal localisations using in front and behind, while VPT-2 subserves left and right from a perspective other than the egocentric. We further conclude that both processes are grounded and situated, but only VPT-2 is embodied in the form of a deliberate movement simulation that increases in mental effort with distance and incongruent proprioception. The differences in cognitive effort predict differences in the use of the associated prepositions. Our findings, therefore, shed light on the situated, grounded and embodied basis of spatial localisations and on the psychology of their use.
轮机英语中介词的语义动化%Semantic Verbalization of Prepositions in Marine Engineering English
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顾玉莲
2011-01-01
语义范畴的转换,尤其是由静态到动态的转换,是英语介词与汉语介词的重要区别之一。工科专业英语对简洁度和准确度的特别要求使得轮机英语中大量存在语义动化的介词。这些介词在语义指涉、句法功能、翻译方法、所接宾语等方面存在一定的特点,了解这些特点有助于学生更加准确理解并灵活运用轮机英语。%The shift of semantic domain,especially the shift from static to dynamic,makes a distinction between English prepositions and Chinese ones.Special requirement for concision and accuracy by ESP results in the massive presence of verbalized prepositions in marine engineering English.These prepositions have some characteristics regarding semantic reference,syntactic function,translation methods and following objects.Learning about these characteristics may help marine engineering majors to gain a more comprehensive knowledge and a better command of marine engineering English.
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王振来
2012-01-01
Word order is one of the most important Chinese grammar means. The basic order of Chinese is SVO. The marked preposition has no real word meaning and only have grammatical meaning, which can function as preposition introduction, transition and sentence forming in semantic functions. Some typical preposition marks can change the frame of Chinese order and preposition mark. "Ba" and "bei" can bring the object before the verb. The marked preposition for the principle of sentence information organization has two prominent characteristics: first, the agent and the patient can be placed before the verb; second, sentence often tends to highlight the result of action. This article, by application of marked theory, analy- zes the sentence marked with preposition for the information organization principle. We believe that there is a motive for engendering the preposition marked that preposition is a mark to differentiate between se- mantic roles, when the agent and the patient are placed before the verb. The composition of the sentence marked with preposition has motivation. It has prominent semantic features and forms a unique sentence characteristics.%语序是汉语最重要的语法手段之一,汉语的基本语序是SVO。介词标记没有实在的词汇意义,只有语法意义,在句法功能上起介引功能、衔接功能、构句功能等。而有些典型介词标记的使用可以改变汉语语序的格局,介词标记＂把＂、＂被＂等可以把宾语提到动词前,使句式格局发生变化,这种句式的突出特点是：一是使施事和受事置于动词前;二是句式往往突出动作的结果。说话者选用介词标记是有动因的,要求介词标记不仅要与句式语义相匹配,还要与语境相匹配。从句式结构上可以看出介词标记与句子其他成分之间的组合关系,这些成分的组合是有规律的,从认知角度探讨这些成分的组合规律,对外国人学习以介词为标记的句式大有裨益。
A Study on the Diachronic Evolution of the Instrumental Prepositions%工具义介词的历时演变研究
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王军
2014-01-01
介词在句法系统中占有重要地位，但是在不同的语言中介词的数量和虚化程度是不同的。介词主要由动词语法化而来，尤其是赋元动词。“以”、“用”、“持”、“取”、“捉”、“著”、“将”、“把”、“拿”、“使”这十个介词都是在连谓结构中由动词虚化而来，它们的宾语经常是工具成分，所以称之为工具义介词。这十个介词在相同的句法结构中标记相同的成分，但是它们的出现时间、发展过程以及发展结果都不尽相同。“以”和“用”产生最早，持续时间最长，“以”直到清代后期才消失，而“用”至今还在广泛使用。“持”在西汉萌芽，“取、捉、著、将”出现在中古汉语阶段；“把、使、拿”在唐宋时期才出现，相对较晚。除了“用”之外，其他介词存在的时间长短不一，但是最终都没有在普通话中保存下来，“捉、使、拿”在方言中仍有使用。%The prepositions occupy an important position in the syntactic system,but in different lan-guages the number of the prepositions and the degree of grammaticalization are different. Chinese has not rich morphological changes,so word order and function words occupy an important position. The prepositions mainly come from the grammaticalized verbs,especially role-assigning verbs. For exam-ple,“Yi”,“Yong”,“Chi”,“Qu”,“Zhuo”,“Zhe”,“Jiang”,“Ba”,“Na”and“Shi”are all from the verb blur in the continuous predicate structure,their objects are often the tool of components,so we call them tool meaning prepositions. Although these ten prepositions in the same syntax structure marK the same composition,their time of occurrence,the development process and the development results are different.“Yi”and“Yong”produce the earliest,the longest,“Yi”didn’t disappear until the late Qing Dynasty,and“Yong”are still widely used
The importance of lexical verbs in the acquisition of spatial prepositions: The case of in and on.
Johannes, Kristen; Wilson, Colin; Landau, Barbara
2016-12-01
The prepositions in and on appear early in children's descriptions of simple containment and support relations, such as "apple in the bowl" and "cup on the table". However, mature use of these basic terms extends across a very broad range of object configurations, raising the question of whether children and adults share the same underlying semantic space, and if so, how children's use of in and on comes to match that of adults. With a new battery containing diverse object configurations, we asked how 4 and 6 year-olds and adults distribute basic spatial expressions (isin, is on) and lexical verbs (hang, attach, etc.) across subtypes of containment and support. Our results reveal probabilistic distributions of in and on in both adult and child language, with similar distributions among adults and children for in but different patterns for on. Moreover, we find substantial differences in the use of lexical verbs across the two spatial domains and across ages. We propose that children and adults share a structured semantic space for both containment and support relations, but larger portions of this space are described by in and on early in development because alternative descriptions employing lexical verbs are inhibited. Using computational modeling along with experimental data, we link developmental changes in the scope of basic spatial expressions to increasing use of lexical verbs in parts of the space that reflect less central relations of containment or support. This result supports a nuanced view of spatial language acquisition that shifts the focus from how children learn basic expressions to how they learn to distribute expressions of varying content and complexity across the semantic space.
A Cognitive Analysis of the Polysemy of the Preposition ＂to＂%介词“to”多义性的认知分析
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周春燕
2012-01-01
Prepositions are the most basic words people employ to express spatial concepts,and they are also an important part of English language.Based on the prototype theory,this paper is to analyze the semantic structure of to in a systematic and comprehensive way and to prove the fact that every sense of a preposition is from the prototypical features of the word.Thus,it is aimed to give some implications for English teaching.%介词是人们用来表达空间概念的一种基本词汇,在英语语言中起着举足轻重的作用。本文从认知语言学中的原型理论出发,对英语介词＂to＂的语义结构进行系统、全面的分析,阐述了介词的多义性均来自于其原型特征这一事实。
О первом актанте русского предлога(On the First Actant of the Russian Preposition
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Lennart Lönngren
2007-01-01
In the article, the inventory of possible forms of the first actant is established. Moreover, special attention is paid to ambiguous constructions. For example, the preposition together with its second actant can function as an attribute of the first actant. Under certain circumstances, however, the preposition phrase may become detached, so that it is no longer syntac- tically, only semantically, connected with the first actant.
LA TRADUCTION DES PREPOSITIONS
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Samira MOUTAKIL
2013-05-01
Full Text Available L’idée de cet article nous est venue d’un cours qu’on assure pour les futurs guides touristiques en Jordanie. En traduisant des textes - français-arabe ou arabe-français, les étudiants se heurtent à certains problèmes pour rendre le texte vers la langue cible et qui soit convenable syntaxiquement et sémantiquement. On a remarqué donc que la traduction des prépositions vers l’une ou l’autre langue présente un dilemme pour les apprenants. On a décidé de composer un corpus de phrases contenant les propositions en français, « à » avec toutes ses formes, « dans et sur » et de l'arabe "على", "في" . Dans un premier temps, on a constitué le corpus avec 25 phrases dans les deux langues et on les a soumises aux étudiants, la liste en français aux étudiants du niveau A2 et la liste ne arabe aux étudiants du niveau A1. Par la suite, on a dégagé ce qui ressort de leurs traductions ce qui nous a permis de faire une analyse sémantico-syntaxique assez détaillée. En conclusion de cet article, on présente les résultats de cette expérience très intéressante.
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María Soledad Funes
2012-01-01
Full Text Available El carácter léxico de la preposición 'de' no siempre ha sido reconocido debidamente por cuanto las preposiciones no pueden funcionar independientemente y por la variedad de significados que se les atribuye. Considerando este vacío teórico, el presente trabajo, enmarcado en el Enfoque Cognitivo-Prototípico (Lakoff 1987; Langacker 1987, 1991; Hopper 1988; Geeraerts 2007; entre otros, plantea las siguientes hipótesis: a los distintos valores semánticos de la preposición 'de' (en construcciones adnominales están organizados sistemáticamente y configuran un ítem polisémico; b el ítem polisémico 'de' se caracteriza por organizarse (1 mediante una estructura de categoría radial (Lakoff 1987, (2 sobre la base del modelo cognitivo idealizado del punto de referencia (Langacker 1991 y (3 a partir de los atributos de Taylor (1995 para el uso posesivo, que es el uso prototípico; c finalmente, las construcciones con 'de' que se alejan del valor prototípico siguen guardando relación semántico-pragmática con este por 'semejanza de familia' (Wittgenstein 1988[1953]; Lakoff 1987. Esta relación de semejanza contempla tanto la pérdida como el agregado de atributos no presentes en la zona prototípica. Para demostrar estas hipótesis, se analizaron cualitativamente diversos ejemplos de las extensiones semánticas surgidas del sentido central de posesión. Los ejemplos fueron seleccionados de un corpus oral del español de Buenos Aires.The lexical nature of the preposition 'de' has not always been recognized duly. This is because prepositions cannot work independently and also because of the variety of meanings that they convey. In view of this theoretical gap, the present study -in line with the Prototypical-Cognitive Approach (Lakoff 1987, Langacker 1987, 1991, Hopper 1988, Geeraerts 2007, among others- formulates the following hypotheses: a the different semantic values of the preposition 'de' (in nominal constructions are systematically
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Mohammad Irani
2010-06-01
Full Text Available Abstract One of the problems of Persian writing is the question of writing and including the noun or adjective "Prepositional" construction sign in words the written form of which end in a silent » h « which is in fact a short vowel equivalent to /e/ (kasra ـِـ .The difference between the two ways of writing the intermediary consonant /y/( ی at the end of the word with a last silent » h « , completely as « ی » or with the sign « ء» on the silent » h « is rooted in the controversy between the traditional and modern approaches of writing. The present study is about to study into the following subjects: an analysis and criticism of both the above approaches, a survey of the history of the intermediary /y/( ی , recognizing its phonetic significance and its role in making and adding new syllables, and finally a conclusion about the more convenient way to write it. It is possible that the outcome of the present study will provide us with a unique form of writing of the case in different texts like books, articles, newspapers, journals and electronic texts.
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Philip R. Minlos
2012-12-01
Full Text Available This paper discusses a statistical correlation between possessive prenominal placement and the presence of a preposition. The data from mediaeval Russian, Czech, and Croatian are validated against standard statistical measures (chisquare (X2 test and phi (φ coefficient. Different explanations for the correlation are proposed; the most natural and simple one links the syntactic feature with the phonetic chunking of preposition and adjacent possessive, strengthened by their frequent co-occurence. ____________________ В статье обсуждается статистическая корреляция между препозицией притяжательных местоимений и наличием предлога. Данные средневековых русских, чешских и хорватских памятников оцениваются по стандартным статистическим процедурам (критерий X2 и φ-коэффициент. В статье предложено несколько различных объяснений для этой корреляции; самое естественное и простое объяснение связывает эту синтаксическую особенность с фонетической: предлог со смежным притяжательным местоимением образуют единое фонетическое слово, причем это единство усиливается частым повторением этой пары в текстах.
Nachtigäller, Kerstin; Rohlfing, Katharina J; McGregor, Karla K
2013-09-01
We trained forty German-speaking children aged 1;8-2;0 in their comprehension of UNTER [UNDER]. The target word was presented within semantically organized input in the form of a 'narrative' to the experimental group and within 'unconnected speech' to the control group. We tested children's learning by asking them to perform an UNDER-relation before, immediately after, and again one day after the training using familiarized and unfamiliarized materials. Compared to controls, the experimental group learned better and retained more. Children with advanced expressive lexicons in particular were aided in generalizing to unfamiliarized materials by the narrative presentation. This study extends our understanding of how narrations scaffold young children's enrichment of nascent word knowledge.
Rigid rod anchored to infinite membrane.
Guo, Kunkun; Qiu, Feng; Zhang, Hongdong; Yang, Yuliang
2005-08-15
We investigate the shape deformation of an infinite membrane anchored by a rigid rod. The density profile of the rod is calculated by the self-consistent-field theory and the shape of the membrane is predicted by the Helfrich membrane elasticity theory [W. Helfrich, Z. Naturforsch. 28c, 693 (1973)]. It is found that the membrane bends away from the rigid rod when the interaction between the rod and the membrane is repulsive or weakly attractive (adsorption). However, the pulled height of the membrane at first increases and then decreases with the increase of the adsorption strength. Compared to a Gaussian chain with the same length, the rigid rod covers much larger area of the membrane, whereas exerts less local entropic pressure on the membrane. An evident gap is found between the membrane and the rigid rod because the membrane's curvature has to be continuous. These behaviors are compared with that of the flexible-polymer-anchored membranes studied by previous Monte Carlo simulations and theoretical analysis. It is straightforward to extend this method to more complicated and real biological systems, such as infinite membrane/multiple chains, protein inclusion, or systems with phase separation.
Some new approaches to infinite divisibility
Sapatinas, Theofanis; Gupta, Arjun K
2011-01-01
Using an approach based, amongst other things, on Proposition 1 of Kaluza (1928), Goldie (1967) and, using a different approach based especially on zeros of polynomials, Steutel (1967) have proved that each nondegenerate distribution function (d.f.) $F$ (on $\\RR$, the real line), satisfying $F(0-) = 0$ and $F(x) = F(0) + (1-F(0)) G(x)$, $x > 0$, where $G$ is the d.f. corresponding to a mixture of exponential distributions, is infinitely divisible. Indeed, Proposition 1 of Kaluza (1928) implies that any nondegenerate discrete probability distribution ${p_x: x= 0,1, ...}$ that is log-convex or, in particular, completely monotone, is compound geometric, and, hence, infinitely divisible. Steutel (1970), Shanbhag & Sreehari (1977) and Steutel & van Harn (2004, Chapter VI) have given certain extensions or variations of one or more of these results. Following a modified version of the C.R. Rao et al. (2009, Section 4) approach based on the Wiener-Hopf factorization, we establish some further results of signi...
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林殷
2014-01-01
空间概念是人类较早产生的、可以直接理解的概念，也是人们认识社会表达各种认知成果的基础。据Brown和LOB语料库统计，空间介词on在英语语言学习中占据着至关重要的地位。意象图式是认知语言中的重要概念，基于认知语言学中的意象图式来剖析介词on的空间原型义，及其在进行跨概念域转用时的隐喻映射过程，是符合人们跨概念域认知世界的过程。%The spacial concept grown early and been understandable directly .It is the basis peo-ple cognize the world and expresses kinds of cognitive achievements.According to the statistics from the corpus Brown and LOB,the spatial preposition On plays a crucial role in English language learn-ing.Image schema is an important concept in cognitive linguistics.To analyze the prototypical meaning of the spacial preposition On and the role of On in the metaphorical process of cross conceptual domain based on image schema is in line with the process that people cognize the world through cross conceptu-al domains.
Directory of Open Access Journals (Sweden)
Vidas Valskys
2015-06-01
Full Text Available The article is an analysis of issues concerning the relationship of the prepositional construction tikėti į ką (“believe in sb.” and the attributive locative with the codified language norm. On the basis of the polemic and insights by some linguists and theologists as well as the data of contemporary usage, it is argued in the article whether the phrase tikėti į Dievą (“believe in God” should reasonably be treated as a translation loanword, whether it does not possess distinctive semantics typical of the Christian discourse, due to which such a prepositional construction should rather be acknowledged as variant of the norm in Standard Lithuanian. The article also contains a discussion on some cases of expressing an attribute using the locative case, as they also have a nuance of location. Therefore, a question is raised whether they are reasonably attributed to syntactic phenomena that should be avoided in standard language.
Nandini, N M; Nandish, S M; Pallavi, P; Akshatha, S K; Chandrashekhar, A P; Anjali, S; Dhar, Murali
2012-01-01
Conventional pap smear (CPS) examination has been the mainstay for early detection of cervical cancer. However, its widespread use has not been possible due to the inherent limitations, like presence of obscuring blood and inflammation, reducing its sensitivity considerably. Automated methods in use in developed countries may not be affordable in the developing countries due to paucity of resources. On the other hand, manual liquid based cytology (MLBC) is a technique that is cost effective and improves detection of precursor lesions and specimen adequacy. Therefore the aim of the study was to compare the utility of MLBC with that of CPS in cervical cancer screening. A prospective study of 100 cases through MLBC and CPS was conducted from October 2009 to July 2010, in a Medical College in India, by two independent pathologists and correlated with histopathology (22 cases). Morphological features as seen through MLBC and CPS were compared. Subsequently, all the cases were grouped based on cytological diagnosis according to two methods into 10 groups and a subjective comparison was made. In order to compare the validity of MLBC with CPS in case of major diagnoses, sensitivity and specificity of the two methods were estimated considering histological examination as the gold standard. Increased detection rate with MLBC was 150%. The concordance rate by LBC/histopathology v/s CPS/histopathology was also improved (86% vs 77%) The percentage agreement by the two methods was 68%. MLBC was more sensitive in diagnosis of LSIL and more specific in the diagnosis of inflammation. Thus, MLBC was found to be better than CPS in diagnosis of precursor lesions. It provided better morphology with increased detection of abnormalities and preservation of specimen for cell block and ancillary studies like immunocytochemistry and HPV detection. Therefore, it can be used as alternative strategy for cervical cancer prevention in limited resource settings.
An Analysis of the Errors in Sentences with the Chinese Prepositional Marker "you"%以介词“由”为标记句式的偏误分析
Institute of Scientific and Technical Information of China (English)
王振来; 侯盼盼
2012-01-01
“由”是介词，常做句式标记。留学生在使用介词标记“由”构句时，经常出现偏误现象。本文从第二语言习得的角度出发，以中介语理论为指导，对北京语言大学HSK动态作文语料库中的“由”字句进行了统计，把有问题的句式进行了分类，对“由”字句的偏误现象进行研究，主要偏误类型是与介词标记“由于、从、在”等混淆而造成的，在分析偏误原因的基础上提出解决的办法。%"you" is a Chinese preposition, which is often regarded as a marker of a sentence pattern. International students often commit errors when they use it. With the help of the second language ac- quisition theories and interlanguage theories, the paper gives a statistical analysis of the sentences with the Chinese prepos Culture University and caused by its confusion itional marker "you" from HSK composition databank in Beijing Language and classifies the sentences with such errors. It concludes that the main errors are with several other Chinese prepositions and some possible solutions are pro- posed.
Computational Interpretation English Spatial Prepositions.
1979-02-01
cognitive concepts, among which are some which facilitate language-learning. In so doing, they have approached the theories of Jean Piaget who for half...the "map" analogy already mentioned, and the "oicture" analogy. As Piaget [ Piaget and Inhelder, 1967] and Clark [1973] noint out. the horizontal...drawing objects in regions with any part of the drawn object obscuring the drawn boundary of the region; evidence presented by Piaget and Inhelder [1967
Directory of Open Access Journals (Sweden)
Giuseppe Trovato
2013-01-01
Full Text Available RESUMEN: El presente artículo pretende ofrecer una sistematización en lo que atañe al régimen preposicional en dos lenguas afines: español e italiano. Por ello, el trabajo se inscribe dentro de un marco didáctico, con el objeto de brindar a todo docente de español algunas pautas metodológicas de interés e utilidad a la hora de abordar el tema en la clase de E/ LE. Para nuestros propósitos, pasaremos someramente revista a los estudios contrastivos más emblemáticos con los que contamos y, a continuación, para nuestro análisis, adoptaremos un enfoque contrastivo y traductológico (español-italiano, con miras a encuadrar la cuestión en un ámbito específico y determinar hasta qué punto las dos lenguas estudiadas guardan parentesco desde el punto de vista sintáctico y morfológico. ABSTRACT: This article aims to offer a systematization with regard to the prepositional system in two related languages: Spanish and Italian. To this end, this study adopts a didactic framework in order to provide every teacher of Spanish with useful methodological guidelines when it comes to addressing this grammar point with students in an SSL class. For our purposes, we will analyze the most important studies on this subject and we will then adopt a contrastive and translation approach (Spanish-Italian, in order to frame the question within a specific field and determine to what extent the two languages are related from a syntactic and morphological point of view.
Institute of Scientific and Technical Information of China (English)
王文京; 王霞; 张瑶
2012-01-01
The new staff pre-positive training plays a vital role in adapting new employees of different positions to the hospital working environment, and the medical working pressure. The author hopes to demonstrate that it can make newcomers adjust to the hospital culture more quickly by adding the courses of hospital culture and teamwork spirit into the new staff pre-positive training, besides, it can also make them get more effective communication, thereby improve the sense of belonging and cohesion of the new staff's.%医院的入职培训对于不同岗位的新职工适应医院的工作环境、适应医疗工作的压力,有着重要意义.笔者通过对不同模式的入职培训的比较分析,阐述了入职培训中加入医院文化和团队精神建设两方面内容,能使新职工更快地融入到医院文化当中,并促进新职工之间的积极沟通,从而提高新职工的归属感和凝聚力.
Institute of Scientific and Technical Information of China (English)
李淑杰
2016-01-01
本文运用语序类型学、认知语言学等相关理论，以汉语“在+NP”及其韩语对应形式为中心，对汉韩语介词相关语序、选择动因等问题进行了细致的考察和说明。本文认为类型学关注的介词相关语序中，汉韩二语在介词短语内部都基本保持了与各自语言基本语序的和谐，体现了语言表达的经济性原则。但在句法层次上，韩语受限于动词强制居尾的句法结构特点，在距离象似原则的支配下，与VP形成和谐组配；而句法化程度较低的汉语则因为距离象似与时间象似性原则的竞争与妥协，以及介词语法化、动补结构发达等因素的共同作用，不仅大量派生介词框式结构，介词短语语序也呈现比韩语复杂的局面。%From the perspective of word order typology and cognitive linguistics, this paper has focused on the Chinese “在+NP ” and its cor-responding forms in Korean, elaborating on the related word order and motivation of choice of Chinese and Korean prepositions. This paper pro-poses that the word order inside the prepositional phrases of both Chinese and Korean are aligned with their basic word order, which embodies the economy principle of language. But on syntactic level, restricted by the characteristic of mandatory ending of verbs in Korean syntactic structure, prepositional phrases form a harmonious pair with VP under the dominance of distance iconicity principle. However, in Chinese, there are a large num-ber of circumpositions and the word order of prepositional phrases is also more complex than in Korean, due to the lower degree of syntacticalization and the competition and compromise between the principle of distance iconicity and the principle of temporal sequence (PTS), together with the combined effect of various factors including grammaticalization of preposi-tion and verb-complement structure.
Energy Technology Data Exchange (ETDEWEB)
Fields, Susannah
2007-08-16
This project is currently under contract for research through the Department of Homeland Security until 2011. The group I was responsible for studying has to remain confidential so as not to affect the current project. All dates, reference links and authors, and other distinguishing characteristics of the original group have been removed from this report. All references to the name of this group or the individual splinter groups has been changed to 'Group X'. I have been collecting texts from a variety of sources intended for the use of recruiting and radicalizing members for Group X splinter groups for the purpose of researching the motivation and intent of leaders of those groups and their influence over the likelihood of group radicalization. This work included visiting many Group X websites to find information on splinter group leaders and finding their statements to new and old members. This proved difficult because the splinter groups of Group X are united in beliefs, but differ in public opinion. They are eager to tear each other down, prove their superiority, and yet remain anonymous. After a few weeks of intense searching, a list of eight recruiting texts and eight radicalizing texts from a variety of Group X leaders were compiled.
Roerdink, Jos B.T.M.
2000-01-01
In its original form, mathematical morphology is a theory of binary image transformations which are invariant under the group of Euclidean translations. This paper surveys and extends constructions of morphological operators which are invariant under a more general group TT, such as the motion group
Positive operator semigroups from finite to infinite dimensions
Bátkai, András; Rhandi, Abdelaziz
2017-01-01
This book gives a gentle but up-to-date introduction into the theory of operator semigroups (or linear dynamical systems), which can be used with great success to describe the dynamics of complicated phenomena arising in many applications. Positivity is a property which naturally appears in physical, chemical, biological or economic processes. It adds a beautiful and far reaching mathematical structure to the dynamical systems and operators describing these processes. In the first part, the finite dimensional theory in a coordinate-free way is developed, which is difficult to find in literature. This is a good opportunity to present the main ideas of the Perron-Frobenius theory in a way which can be used in the infinite dimensional situation. Applications to graph matrices, age structured population models and economic models are discussed. The infinite dimensional theory of positive operator semigroups with their spectral and asymptotic theory is developed in the second part. Recent applications illustrate t...
Polygons in restricted geometries subjected to infinite forces
Beaton, N. R.; Eng, J. W.; Soteros, C. E.
2016-10-01
We consider self-avoiding polygons in a restricted geometry, namely an infinite L × M tube in {{{Z}}}3. These polygons are subjected to a force f, parallel to the infinite axis of the tube. When f\\gt 0 the force stretches the polygons, while when f\\lt 0 the force is compressive. We obtain and prove the asymptotic form of the free energy in both limits f\\to +/- ∞ . We conjecture that the f\\to -∞ asymptote is the same as the limiting free energy of ‘Hamiltonian’ polygons, polygons which visit every vertex in a L× M× N box. We investigate such polygons, and in particular use a transfer-matrix methodology to establish that the conjecture is true for some small tube sizes. Dedicated to Anthony J Guttmann on the occasion of his 70th birthday.
Influence of Track Parameters on Welded Turnout Group
Institute of Scientific and Technical Information of China (English)
XU Qing-yuan; WANG Ping; QU Xiao-hui; LI Shu-de
2007-01-01
By building the finite element model, the track parameters, including the ultimate longitudinal resistance, the length of the intermediate straight line, and the gap between spacer blocks, were analyzed for their influences on the longitudinal forces and displacements of the single turnout and turnout group, respectively. The results indicate that when the longitudinal resistance drops from 32 to 20 N/cm, the maximum additional longitudinal force of the turnout group increases by 19. 2%, and the maximum additional longitudinal displacement of the turnout group grows by 85.3% compared with 50.4% for the single turnout. When the length of intermediate straight line rises from 0 m to infinite, the maximum additional longitudinal force decreases by 38.8%, and the maximum additional longitudinal displacement by 80.3%.
Group devaluation and group identification
Leach, C.W.; Rodriguez Mosquera, P.M.; Vliek, M.L.W.; Hirt, E.
2010-01-01
In three studies, we showed that increased in-group identification after (perceived or actual) group devaluation is an assertion of a (preexisting) positive social identity that counters the negative social identity implied in societal devaluation. Two studies with real-world groups used order manip
Prepositioning for Flooding in the Sacramento Region
2011-03-01
away from Sacramento , we select RL2 (Mather Field), RL3 ( McClellan Air Park), and RL4 (Beale AFB ). Through private communications with CDPH’s David...Decommissioned Air Force base ( AFB ) RL3 McClellan Air Park Decommissioned AFB RL4 Beale AFB Large active AFB RL5 Yuba/Sutter CFG Medium‐sized county fairgrounds... McClellan ) 1124 281 AA5 ( Sacramento ) RL9 (Kaiser) 971 243 AA6 (Elk Grove) RL10 (Sutter) 1016 254 Table 18. AST movement of EP in Scenario 1 In Table
The Maritime Preposition Force Ship 2010
2007-11-02
suits Ship Repair 2 1 cannon Ship Repair 1 chock and FC/GM/ET 4 chain 15 81 Total 96 WCC Weapons Control Console LaCC Launcher Control Console Sup In...missions. 13. Full Battle Scenarios No attempt was made by the design team to evaluate war games which involve the entire battle force including the MEF
DEFF Research Database (Denmark)
2007-01-01
The workshop continued a series of Oberwolfach meetings on algebraic groups, started in 1971 by Tonny Springer and Jacques Tits who both attended the present conference. This time, the organizers were Michel Brion, Jens Carsten Jantzen, and Raphaël Rouquier. During the last years, the subject...... of algebraic groups (in a broad sense) has seen important developments in several directions, also related to representation theory and algebraic geometry. The workshop aimed at presenting some of these developments in order to make them accessible to a "general audience" of algebraic group......-theorists, and to stimulate contacts between participants. Each of the first four days was dedicated to one area of research that has recently seen decisive progress: \\begin{itemize} \\item structure and classification of wonderful varieties, \\item finite reductive groups and character sheaves, \\item quantum cohomology...
Adams, Karen
2015-01-01
In this article Karen Adams demonstrates how to incorporate group grammar techniques into a classroom activity. In the activity, students practice using the target grammar to do something they naturally enjoy: learning about each other.
Institute of Scientific and Technical Information of China (English)
无
2008-01-01
@@ With its headquarters in the historic city of Yangzhou,Jiangsu Muyang Group Co.,Ltd has since its founding in 1967 grown into a well-known group corporation whose activities cover research&development.project design,manufacturing,installation and services in a multitude of industries including feed machinery and engineering,storage engineering,grain machinery and engineering,environmental protection,conveying equipment and automatic control systems.
Fuchs, László
2015-01-01
Written by one of the subject’s foremost experts, this book focuses on the central developments and modern methods of the advanced theory of abelian groups, while remaining accessible, as an introduction and reference, to the non-specialist. It provides a coherent source for results scattered throughout the research literature with lots of new proofs. The presentation highlights major trends that have radically changed the modern character of the subject, in particular, the use of homological methods in the structure theory of various classes of abelian groups, and the use of advanced set-theoretical methods in the study of undecidability problems. The treatment of the latter trend includes Shelah’s seminal work on the undecidability in ZFC of Whitehead’s Problem; while the treatment of the former trend includes an extensive (but non-exhaustive) study of p-groups, torsion-free groups, mixed groups, and important classes of groups arising from ring theory. To prepare the reader to tackle these topics, th...
Chertov, Oleg; 10.1007/978-3-642-14058-7_61
2010-01-01
In recent years the amount of digital data in the world has risen immensely. But, the more information exists, the greater is the possibility of its unwanted disclosure. Thus, the data privacy protection has become a pressing problem of the present time. The task of individual privacy-preserving is being thoroughly studied nowadays. At the same time, the problem of statistical disclosure control for collective (or group) data is still open. In this paper we propose an effective and relatively simple (wavelet-based) way to provide group anonymity in collective data. We also provide a real-life example to illustrate the method.
E. van den Berg; P. van Houwelingen; J. de Hart
2011-01-01
Original title: Informele groepen Going out running with a group of friends, rather than joining an official sports club. Individuals who decide to take action themselves rather than giving money to good causes. Maintaining contact with others not as a member of an association, but through an Inter
L. Taylor
2011-01-01
The CMS Communications Group, established at the start of 2010, has been busy in all three areas of its responsibility: (1) Communications Infrastructure, (2) Information Systems, and (3) Outreach and Education. Communications Infrastructure There are now 55 CMS Centres worldwide that are well used by physicists working on remote CMS shifts, Computing operations, data quality monitoring, data analysis and outreach. The CMS Centre@CERN in Meyrin, is the centre of the CMS offline and computing operations, hosting dedicated analysis efforts such as during the CMS Heavy Ion lead-lead running. With a majority of CMS sub-detectors now operating in a “shifterless” mode, many monitoring operations are now routinely performed from there, rather than in the main Control Room at P5. The CMS Communications Group, CERN IT and the EVO team are providing excellent videoconferencing support for the rapidly-increasing number of CMS meetings. In parallel, CERN IT and ...
DEFF Research Database (Denmark)
Møller Larsen, Marcus; Pedersen, Torben; Slepniov, Dmitrij
2010-01-01
The last years’ rather adventurous journey from 2004 to 2009 had taught the fifth-largest toy-maker in the world - the LEGO Group - the importance of managing the global supply chain effectively. In order to survive the largest internal financial crisis in its roughly 70 years of existence......, the management had, among many initiatives, decided to offshore and outsource a major chunk of its production to Flextronics. In this pursuit of rapid cost-cutting sourcing advantages, the LEGO Group planned to license out as much as 80 per cent of its production besides closing down major parts...... of the production in high cost countries. Confident with the prospects of the new partnership, the company signed a long-term contract with Flextronics. This decision eventually proved itself to have been too hasty, however. Merely three years after the contracts were signed, LEGO management announced that it would...
DEFF Research Database (Denmark)
Tychsen, Anders; Hitchens, Michael; Brolund, Thea
2008-01-01
of group dynamics, the influence of the fictional game characters and the comparative play experience between the two formats. The results indicate that group dynamics and the relationship between the players and their digital characters, are integral to the quality of the gaming experience in multiplayer......Role-playing games (RPGs) are a well-known game form, existing in a number of formats, including tabletop, live action, and various digital forms. Despite their popularity, empirical studies of these games are relatively rare. In particular there have been few examinations of the effects...... of the various formats used by RPGs on the gaming experience. This article presents the results of an empirical study, examining how multi-player tabletop RPGs are affected as they are ported to the digital medium. Issues examined include the use of disposition assessments to predict play experience, the effect...
Group Connections: Whole Group Teaching.
Griffiths, Dorothy
2002-01-01
A learner-centered approach to adult group instruction involved learners in investigating 20th-century events. The approach allowed learners to concentrate on different activities according to their abilities and gave them opportunities to develop basic skills and practice teamwork. (SK)
Wibeck, Victoria
2012-04-01
In managing environmental problems, several countries have chosen the management by objectives (MBO) approach. This paper investigates how focus group participants from the Swedish environmental administration used metaphors to describe the mode of organization needed to attain environmental objectives. Such analysis can shed light on how an MBO system is perceived by actors and how it works in practice. Although the Swedish government intended to stimulate broad-based cooperation among many actors, participants often saw themselves as located at a certain "level," i.e., "higher" or "lower," in the MBO system—that is, their conceptions corresponded to a traditional, hierarchical interpretation of MBO. Prepositions such as "in" and "out" contributed to feelings of inclusion and exclusion on the part of MBO actors. However, horizontal metaphors merged with vertical ones, indicating ongoing competition for the right to interpret how the system of environmental objectives should best be managed. The paper concludes that any organization applying MBO could benefit from discussing alternate ways of talking and thinking about its constituent "levels."
L. Taylor
2011-01-01
The CMS Communications Group has been busy in all three areas of its responsibility: (1) Communications Infrastructure, (2) Information Systems, and (3) Outreach and Education. Communications Infrastructure The 55 CMS Centres worldwide are well used by physicists working on remote CMS shifts, Computing operations, data quality monitoring, data analysis and outreach. The CMS Centre@CERN in Meyrin, is the centre of the CMS Offline and Computing operations, and a number of subdetector shifts can now take place there, rather than in the main Control Room at P5. A new CMS meeting room has been equipped for videoconferencing in building 42, next to building 40. Our building 28 meeting room and the facilities at P5 will be refurbished soon and plans are underway to steadily upgrade the ageing equipment in all 15 CMS meeting rooms at CERN. The CMS evaluation of the Vidyo tool indicates that it is not yet ready to be considered as a potential replacement for EVO. The Communications Group provides the CMS-TV (web) cha...
L. Taylor
2010-01-01
The CMS Communications Group, established at the start of 2010, has been strengthening the activities in all three areas of its responsibility: (1) Communications Infrastructure, (2) Information Systems, and (3) Outreach and Education. Communications Infrastructure The Communications Group has invested a lot of effort to support the operations needs of CMS. Hence, the CMS Centres where physicists work on remote CMS shifts, Data Quality Monitoring, and Data Analysis are running very smoothly. There are now 55 CMS Centres worldwide, up from just 16 at the start of CMS data-taking. The latest to join are Imperial College London, the University of Iowa, and the Università di Napoli. The CMS Centre@CERN in Meyrin, which is now full repaired after the major flooding at the beginning of the year, has been at the centre of CMS offline and computing operations, most recently hosting a large fraction of the CMS Heavy Ion community during the lead-lead run. A number of sub-detector shifts can now take pla...
L. Taylor
2011-01-01
Communications Infrastructure The 55 CMS Centres worldwide are well used by physicists working on remote CMS shifts, Computing operations, data quality monitoring, data analysis and outreach. The CMS Centre@CERN in Meyrin is particularly busy at the moment, hosting about 50 physicists taking part in the heavy-ion data-taking and analysis. Three new CMS meeting room will be equipped for videoconferencing in early 2012: 40/5B-08, 42/R-031, and 28/S-029. The CMS-TV service showing LHC Page 1, CMS Page 1, etc. (http://cmsdoc.cern.ch/cmscc/projector/index.jsp) is now also available for mobile devices: http://cern.ch/mcmstv. Figure 12: Screenshots of CMS-TV for mobile devices Information Systems CMS has a new web site: (http://cern.ch/cms) using a modern web Content Management System to ensure content and links are managed and updated easily and coherently. It covers all CMS sub-projects and groups, replacing the iCMS internal pages. It also incorporates the existing CMS public web site (http:/...
L. Taylor
2012-01-01
Outreach and Education We are fortunate that our research has captured the public imagination, even though this inevitably puts us under the global media spotlight, as we saw with the Higgs seminar at CERN in December, which had 110,000 distinct webcast viewers. The media interest was huge with 71 media organisations registering to come to CERN to cover the Higgs seminar, which was followed by a press briefing with the DG and Spokespersons. This event resulted in about 2,000 generally positive stories in the global media. For this seminar, the CMS Communications Group prepared up-to-date news and public material, including links to the CMS results, animations and event displays [http://cern.ch/go/Ch8thttp://cern.ch/go/Ch8t]. There were 44,000 page-views on the CMS public website, with the Higgs news article being by far the most popular item. CMS event displays from iSpy are fast becoming the iconic media images, featuring on numerous major news outlets (BBC, CNN, MSN...) as well as in the sci...
L. Taylor
2010-01-01
The recently established CMS Communications Group, led by Lucas Taylor, has been busy in all three of its main are areas of responsibility: Communications Infrastructure, Information Systems, and Outreach and Education Communications Infrastructure The damage caused by the flooding of the CMS Centre@CERN on 21st December has been completely repaired and all systems are back in operation. Major repairs were made to the roofs, ceilings and one third of the floor had to be completely replaced. Throughout these works, the CMS Centre was kept operating and even hosted a major press event for first 7 TeV collisions, as described below. Incremental work behind the scenes is steadily improving the quality of the CMS communications infrastructure, particularly Webcasting, video conferencing, and meeting rooms at CERN. CERN/IT is also deploying a pilot service of a new videoconference tool called Vidyo, to assess whether it might provide an enhanced service at a lower cost, compared to the EVO tool currently in w...
Preposition Stranding and Orphaning: The Case of Bare Prepositions in French
Kaiser, Georg A.
2012-01-01
In their keynote contribution, Poplack, Zentz & Dion (henceforth PZD; Poplack, Zentz & Dion, 2011, this issue) propose an interesting "scientific test of convergence" (under section heading: "Introduction") which contains criteria to check whether a particular feature in a given language in contact with another one is…
From mapping class groups to automorphism groups of free groups
DEFF Research Database (Denmark)
Wahl, Nathalie
2005-01-01
We show that the natural map from the mapping class groups of surfaces to the automorphism groups of free groups, induces an infinite loop map on the classifying spaces of the stable groups after plus construction. The proof uses automorphisms of free groups with boundaries which play the role...... of mapping class groups of surfaces with several boundary components....
Fourier Monte Carlo renormalization-group approach to crystalline membranes.
Tröster, A
2015-02-01
The computation of the critical exponent η characterizing the universal elastic behavior of crystalline membranes in the flat phase continues to represent challenges to theorists as well as computer simulators that manifest themselves in a considerable spread of numerical results for η published in the literature. We present additional insight into this problem that results from combining Wilson's momentum shell renormalization-group method with the power of modern computer simulations based on the Fourier Monte Carlo algorithm. After discussing the ideas and difficulties underlying this combined scheme, we present a calculation of the renormalization-group flow of the effective two-dimensional Young modulus for momentum shells of different thickness. Extrapolation to infinite shell thickness allows us to produce results in reasonable agreement with those obtained by functional renormalization group or by Fourier Monte Carlo simulations in combination with finite-size scaling. Moreover, our method allows us to obtain a decent estimate for the value of the Wegner exponent ω that determines the leading correction to scaling, which in turn allows us to refine our numerical estimate for η previously obtained from precise finite-size scaling data.
Integrated Groups and Smooth Distribution Groups
Institute of Scientific and Technical Information of China (English)
Pedro J. MIANA
2007-01-01
In this paper, we prove directly that α-times integrated groups define algebra homo-morphisms. We also give a theorem of equivalence between smooth distribution groups and α-times integrated groups.
Group typicality, group loyalty and cognitive development.
Patterson, Meagan M
2014-09-01
Over the course of childhood, children's thinking about social groups changes in a variety of ways. Developmental Subjective Group Dynamics (DSGD) theory emphasizes children's understanding of the importance of conforming to group norms. Abrams et al.'s study, which uses DSGD theory as a framework, demonstrates the social cognitive skills underlying young elementary school children's thinking about group norms. Future research on children's thinking about groups and group norms should explore additional elements of this topic, including aspects of typicality beyond loyalty.
Which finite simple groups are unit groups?
DEFF Research Database (Denmark)
Davis, Christopher James; Occhipinti, Tommy
2014-01-01
We prove that if G is a finite simple group which is the unit group of a ring, then G is isomorphic to either (a) a cyclic group of order 2; (b) a cyclic group of prime order 2^k −1 for some k; or (c) a projective special linear group PSLn(F2) for some n ≥ 3. Moreover, these groups do all occur...
On Functional and Holographic Renormalization Group Methods in Stochastic Theory of Turbulence
Ogarkov, S L
2016-01-01
A nonlocal quantum-field model is constructed for the system of hydrodynamic equations for incompressible viscous fluid (the stochastic Navier--Stokes (NS) equation and the continuity equation). This model is studied by the following two mutually parallel methods: the Wilson--Polchinski functional renormalization group method (FRG), which is based on the exact functional equation for the generating functional of amputated connected Green's functions (ACGF), and the Heemskerk--Polchinski holographic renormalization group method (HRG), which is based on the functional Hamilton--Jacobi (HJ) equation for the holographic boundary action. Both functional equations are equivalent to infinite hierarchies of integro-differential equations (coupled in the FRG case) for the corresponding families of Green's functions (GF). The RG-flow equations can be derived explicitly for two-particle functions. Because the HRG-flow equation is closed (contains only a two-particle GF), the explicit analytic solutions are obtained for ...
Group Cohesion in Experiential Growth Groups
Steen, Sam; Vasserman-Stokes, Elaina; Vannatta, Rachel
2014-01-01
This article explores the effect of web-based journaling on changes in group cohesion within experiential growth groups. Master's students were divided into 2 groups. Both used a web-based platform to journal after each session; however, only 1 of the groups was able to read each other's journals. Quantitative data collected before and…
Zimpfer, David G.
1992-01-01
Lists 21 new publications in group work, of which 9 are reviewed. Those discussed include publications on group counseling and psychotherapy, structured groups, support groups, psychodrama, and social group work. (Author/NB)
Group theories: relevance to group safety studies.
Benevento, A L
1998-01-01
Promoting safety in the workplace has been attempted in a variety of ways. Increasingly, industries are using groups such as safety teams and quality circles to promote worker safety. Group influences on individual behavior and attitudes have long been studied in the social psychology literature, but the theories have not been commonly found outside the psychology arena. This paper describes the group theories of group polarization, risky shift, social loafing, groupthink and team think and attempts to apply these theories to existing studies that examine work group influences on safety. Interesting parallels were found but only one study examined group influences as their primary focus of research. Since groups are increasingly used for safety promotion, future research on safety that studies group influences with respect to current group theories is recommended.
Magnetic translation groups as group extension
Florek, Wojciech
1998-01-01
Extensions of a direct product T of two cyclic groups Z_n1 and Z_n2 by an Abelian (gauge) group G with the trivial action of T on G are considered. All possible (nonequivalent) factor systems are determined using the Mac Lane method. Some of resulting groups describe magnetic translation groups. As examples extensions with G=U(1) and G=Z_n are considered and discussed.
Group Dynamic Processes in Email Groups
Alpay, Esat
2005-01-01
Discussion is given on the relevance of group dynamic processes in promoting decision-making in email discussion groups. General theories on social facilitation and social loafing are considered in the context of email groups, as well as the applicability of psychodynamic and interaction-based models. It is argued that such theories may indeed…
Interagency mechanical operations group numerical systems group
Energy Technology Data Exchange (ETDEWEB)
NONE
1997-09-01
This report consists of the minutes of the May 20-21, 1971 meeting of the Interagency Mechanical Operations Group (IMOG) Numerical Systems Group. This group looks at issues related to numerical control in the machining industry. Items discussed related to the use of CAD and CAM, EIA standards, data links, and numerical control.
AREVA group overview; Presentation du groupe AREVA
Energy Technology Data Exchange (ETDEWEB)
NONE
2002-02-08
This document presents the Group Areva, a world nuclear industry leader, from a financial holding company to an industrial group, operating in two businesses: the nuclear energy and the components. The structure and the market of the group are discussed, as the financial assets. (A.L.B.)
About group digital signatures
National Research Council Canada - National Science Library
Adriana Cristina Enache
2012-01-01
...).A group digital signature is a digital signature with enhanced privacy features that allows members of a given group to anonymously sign messages on behalf of the group, producing a group signature...
Introduction to Sporadic Groups
Directory of Open Access Journals (Sweden)
Luis J. Boya
2011-01-01
Full Text Available This is an introduction to finite simple groups, in particular sporadic groups, intended for physicists. After a short review of group theory, we enumerate the 1+1+16=18 families of finite simple groups, as an introduction to the sporadic groups. These are described next, in three levels of increasing complexity, plus the six isolated ''pariah'' groups. The (old five Mathieu groups make up the first, smallest order level. The seven groups related to the Leech lattice, including the three Conway groups, constitute the second level. The third and highest level contains the Monster group M, plus seven other related groups. Next a brief mention is made of the remaining six pariah groups, thus completing the 5+7+8+6=26 sporadic groups. The review ends up with a brief discussion of a few of physical applications of finite groups in physics, including a couple of recent examples which use sporadic groups.
Scaling theory of Anderson localization: A renormalization-group approach
Sarker, Sanjoy; Domany, Eytan
1981-06-01
A position-space renormalization-group method, suitable for studying the localization properties of electrons in a disordered system, was developed. Two different approximations to a well-defined exact procedure were used. The first method is a perturbative treatment to lowest order in the intercell couplings. This yields a localization edge in three dimensions, with a fixed point at the band center (E=0) at a critical disorder σc~=7.0. In the neighborhood of the fixed point the localization length L is predicted to diverge as L~(σ-σc+βE2)-ν. In two dimensions no fixed point is found, indicating localization even for small randomness, in agreement with Abrahams, Anderson, Licciardello, and Ramakrishnan. The second method is an application of the finite-lattice approximation, in which the intercell hopping between two (or more) cells is treated to infinite order in perturbation theory. To our knowledge, this method has not been previously used for quantum systems. Calculations based on this approximation were carried out in two dimensions only, yielding results that are in agreement with those of the lowest-order approximation.
Group Work: How to Use Groups Effectively
Burke, Alison
2011-01-01
Many students cringe and groan when told that they will need to work in a group. However, group work has been found to be good for students and good for teachers. Employers want college graduates to have developed teamwork skills. Additionally, students who participate in collaborative learning get better grades, are more satisfied with their…
McGrath, Joseph E.
1978-01-01
Summarizes research on small group processes by giving a comprehensive account of the types of variables primarily studied in the laboratory. These include group structure, group composition, group size, and group relations. Considers effects of power, leadership, conformity to social norms, and role relationships. (Author/AV)
Free Boolean Topological Groups
Directory of Open Access Journals (Sweden)
Ol’ga Sipacheva
2015-11-01
Full Text Available Known and new results on free Boolean topological groups are collected. An account of the properties that these groups share with free or free Abelian topological groups and properties specific to free Boolean groups is given. Special emphasis is placed on the application of set-theoretic methods to the study of Boolean topological groups.
... Group The MSUD Family Support Group is a non-profit 501 (c)(3) organization for those with MSUD ... Family Support Group is a 501(c)(3) non-profit organization with no paid staff. Funds are needed ...
Ribes, Luis
2017-01-01
This book offers a detailed introduction to graph theoretic methods in profinite groups and applications to abstract groups. It is the first to provide a comprehensive treatment of the subject. The author begins by carefully developing relevant notions in topology, profinite groups and homology, including free products of profinite groups, cohomological methods in profinite groups, and fixed points of automorphisms of free pro-p groups. The final part of the book is dedicated to applications of the profinite theory to abstract groups, with sections on finitely generated subgroups of free groups, separability conditions in free and amalgamated products, and algorithms in free groups and finite monoids. Profinite Graphs and Groups will appeal to students and researchers interested in profinite groups, geometric group theory, graphs and connections with the theory of formal languages. A complete reference on the subject, the book includes historical and bibliographical notes as well as a discussion of open quest...
Homomorphisms of quantum groups
Meyer, Ralf; Woronowicz, Stanisław Lech
2010-01-01
We introduce some equivalent notions of homomorphisms between quantum groups that behave well with respect to duality of quantum groups. Our equivalent definitions are based on bicharacters, coactions, and universal quantum groups, respectively.
2012-01-01
15 pages In 2011, My Plate replaced the Food Pyramid as a visual representation for the USDA Dietary Guidelines. This publication, a group of recipes based on this new division of food groups, reflects the effort of the USDA and other groups to translate science-based research into everyday practice for Americans. Fifteen recipes (3 from each food group) show ways to use foods from each food group. They are complete with basic nutritional analyses and food group amounts.
Locally minimal topological groups
Außenhofer, Lydia; Chasco, María Jesús; Dikranjan, Dikran; Domínguez, Xabier
2009-01-01
A Hausdorff topological group $(G,\\tau)$ is called locally minimal if there exists a neighborhood $U$ of 0 in $\\tau$ such that $U$ fails to be a neighborhood of zero in any Hausdorff group topology on $G$ which is strictly coarser than $\\tau.$ Examples of locally minimal groups are all subgroups of Banach-Lie groups, all locally compact groups and all minimal groups. Motivated by the fact that locally compact NSS groups are Lie groups, we study the connection between local minimality and the ...
GROUP PROFILE Computer Technique
Directory of Open Access Journals (Sweden)
Andrey V. Sidorenkov
2015-01-01
Full Text Available This article contains a description of the structure, the software and functional capabilities, and the scope and purposes of application of the Group Profile (GP computer technique. This technique rests on a conceptual basis (the microgroup theory, includes 16 new and modified questionnaires, and a unique algorithm, tied to the questionnaires, for identification of informal groups. The GP yields a wide range of data about the group as a whole (47 indices, each informal group (43 indices, and each group member (16 indices. The GP technique can be used to study different types of groups: production (work groups, design teams, military units, etc., academic (school classes, student groups, and sports.
Ordered groups and infinite permutation groups
1996-01-01
The subjects of ordered groups and of infinite permutation groups have long en joyed a symbiotic relationship. Although the two subjects come from very different sources, they have in certain ways come together, and each has derived considerable benefit from the other. My own personal contact with this interaction began in 1961. I had done Ph. D. work on sequence convergence in totally ordered groups under the direction of Paul Conrad. In the process, I had encountered "pseudo-convergent" sequences in an ordered group G, which are like Cauchy sequences, except that the differences be tween terms of large index approach not 0 but a convex subgroup G of G. If G is normal, then such sequences are conveniently described as Cauchy sequences in the quotient ordered group GIG. If G is not normal, of course GIG has no group structure, though it is still a totally ordered set. The best that can be said is that the elements of G permute GIG in an order-preserving fashion. In independent investigations around that t...
Communication in Organizational Groups
Monica RADU
2007-01-01
Organizational group can be defined as some persons between who exist interactive connections (functional, communication, affective, normative type). Classification of these groups can reflect the dimension, type of relationship or type of rules included. Organizational groups and their influence over the individual efficiency and the efficiency of the entire group are interconnected. Spontaneous roles in these groups sustain the structure of the relationship, and the personality of each indi...
Group Psychotherapy in Iceland.
Ívarsson, Ómar
2015-10-01
In this overview of group psychotherapy in Iceland, an attempt will be made to describe how it is practiced today, give some glimpses into its earlier history, and clarify seven issues: (1) the standing of group psychotherapy in Iceland, its previous history, and the theoretical orientation of dynamic group therapy in the country; (2) the role of group therapy in the health care system; (3) how training in group therapy is organized; (4) the relationship between group psychotherapy research and clinical practice; (5) which issues/processes can be identified as unique to therapy groups in Iceland; and (6) how important are group-related issues within the social background of the country; and (7) what group work holds for the future.
Locally minimal topological groups
enhofer, Lydia Au\\ss; Dikranjan, Dikran; Domínguez, Xabier
2009-01-01
A Hausdorff topological group $(G,\\tau)$ is called locally minimal if there exists a neighborhood $U$ of 0 in $\\tau$ such that $U$ fails to be a neighborhood of zero in any Hausdorff group topology on $G$ which is strictly coarser than $\\tau.$ Examples of locally minimal groups are all subgroups of Banach-Lie groups, all locally compact groups and all minimal groups. Motivated by the fact that locally compact NSS groups are Lie groups, we study the connection between local minimality and the NSS property, establishing that under certain conditions, locally minimal NSS groups are metrizable. A symmetric subset of an abelian group containing zero is said to be a GTG set if it generates a group topology in an analogous way as convex and symmetric subsets are unit balls for pseudonorms on a vector space. We consider topological groups which have a neighborhood basis at zero consisting of GTG sets. Examples of these locally GTG groups are: locally pseudo--convex spaces, groups uniformly free from small subgroups (...
Gil, J I Burgos
2009-01-01
We give a new construction of higher arithmetic Chow groups for quasi-projective arithmetic varieties over a field. Our definition agrees with the higher arithmetic Chow groups defined by Goncharov for projective arithmetic varieties over a field. These groups are the analogue, in the Arakelov context, of the higher algebraic Chow groups defined by Bloch. The degree zero group agrees with the arithmetic Chow groups of Burgos. Our new construction is shown to be a contravariant functor and is endowed with a product structure, which is commutative and associative.
Morris, Joan, Ed.
1984-01-01
Describes nine Canadian programs for counseling groups of students. Topics include introducing computer-assisted guidance, future challenges for counselors, sociometry, sexuality, parent counseling, reluctant students, shyness, peer groups, education for living, and guidance advisory committees. (JAC)
Harman, Robert L.; Franklin, Richard W.
1975-01-01
Gestalt therapy in groups is not limited to individual work in the presence of an audience. Describes several ways to involve gestalt groups interactionally. Interactions described focus on learning by doing and discovering, and are noninterpretive. (Author/EJT)
Group B streptococcus - pregnancy
... page: //medlineplus.gov/ency/patientinstructions/000511.htm Group B streptococcus - pregnancy To use the sharing features on this page, please enable JavaScript. Group B streptococcus (GBS) is a type of bacteria that ...
Group Decision Process Support
DEFF Research Database (Denmark)
Gøtze, John; Hijikata, Masao
1997-01-01
Introducing the notion of Group Decision Process Support Systems (GDPSS) to traditional decision-support theorists.......Introducing the notion of Group Decision Process Support Systems (GDPSS) to traditional decision-support theorists....
About group digital signatures
Directory of Open Access Journals (Sweden)
Adriana Cristina Enache
2012-09-01
Full Text Available
Group signatures try to combine security (no framing, no cheating and privacy(anonymity, unlinkability.A group digital signature is a digital signature with enhanced privacy features that allows members of a given group to anonymously sign messages on behalf of the group, producing a group signature. However, in the case of dispute the identity of the signature's originator can be revealed by a designated entity (group manager. The present paper describes the main concepts about group signatures, along with a brief state of the art and shows a personal cryptographic library implemented in Java that includes two group signatures.
Liu, Jun
2010-01-01
The group Lasso is an extension of the Lasso for feature selection on (predefined) non-overlapping groups of features. The non-overlapping group structure limits its applicability in practice. There have been several recent attempts to study a more general formulation, where groups of features are given, potentially with overlaps between the groups. The resulting optimization is, however, much more challenging to solve due to the group overlaps. In this paper, we consider the efficient optimization of the overlapping group Lasso penalized problem. We reveal several key properties of the proximal operator associated with the overlapping group Lasso, and compute the proximal operator by solving the smooth and convex dual problem, which allows the use of the gradient descent type of algorithms for the optimization. We have performed empirical evaluations using the breast cancer gene expression data set, which consists of 8,141 genes organized into (overlapping) gene sets. Experimental results demonstrate the eff...
Constructional effects on prepositional antonymy in Croatian and Danish
DEFF Research Database (Denmark)
Hovmark, Henrik; Katunar, Daniela
in motionconstructions) and b) theconceptual content profiled by antonymy pairs (Cro. u:Acc–iz:Gen; Da. ind i-ud af 'into–out of'–container / Cro. u:Loc–izvan:Gen 'in – outside', Da. hjemme hos-ude hos 'home-out'–centre-periphery). Antonymy is thus regarded as a conceptual and constructional phenomenon which canbe used...
Domain minimization and beyond: Modeling prepositional phrase ordering
Wiechmann, D.; Lohmann, A.
2013-01-01
An important account of linear ordering in syntax is John A. Hawkins' (2004) theory of cognitive efficiency and the principles of domain minimization formulated therein. In its latest formulation, the theory postulates syntactic and semantic minimization principles. With regard to the relative stren
Pumas and Prepositions: Training Nature Guides in the Yucatan Peninsula.
Brown, Cynthia
2000-01-01
In the Yucatan Peninsula (Mexico), the 10-week Nature Guide Training Program integrates English immersion with natural history and environmental interpretation to train rural adults as nature guides and conservation leaders. Most graduates have found work as ecotourism guides or in conservation-related activities, and many have provided English…
Maritime Prepositioning Force (Future) Capability Assessment: Planned and Alternative Structures
2010-01-01
could interface more closely with the LCACs, either by directly offloading onto the hovercraft themselves or by transload- ing supplies from T-AKE to MLP... hovercraft that can load personnel, supplies, and equipment at the sea base and deliver them to the beach) are launched at a distance of 25 NM from the...aboard the MPF(F) be capable of moving ashore in one period of darkness. To a large extent, that requirement drives the need for the 18 hovercraft
Constructional effects on prepositional antonymy in Croatian and Danish
DEFF Research Database (Denmark)
Hovmark, Henrik; Katunar, Daniela
2014-01-01
in motionconstructions) and b) theconceptual content profiled by antonymy pairs (Cro. u:Acc–iz:Gen; Da. ind i-ud af 'into–out of'–container / Cro. u:Loc–izvan:Gen 'in – outside', Da. hjemme hos-ude hos 'home-out'–centre-periphery). Antonymy is thus regarded as a conceptual and constructional phenomenon which canbe used...
Generalized Group Signature Scheme
Institute of Scientific and Technical Information of China (English)
无
2001-01-01
The concept of generalized group signature scheme will bepresent. Based on the generalized secret sharing scheme proposed by Lin and Ha rn, a non-interactive approach is designed for realizing such generalized group signature scheme. Using the new scheme, the authorized subsets of the group in w hich the group member can cooperate to produce the valid signature for any messa ge can be randomly specified
DEFF Research Database (Denmark)
Hansen, Annette Skovsted
2014-01-01
Motivation for the activity I use this strategy for forming groups to ensure diverse/multicultural groups that combine a variety of different strengths and resources based on student's academic, disciplinary, linguistic, national, personal and work backgrounds.......Motivation for the activity I use this strategy for forming groups to ensure diverse/multicultural groups that combine a variety of different strengths and resources based on student's academic, disciplinary, linguistic, national, personal and work backgrounds....
Groups, combinatorics and geometry
Ivanov, A A; Saxl, J
2003-01-01
Over the past 20 years, the theory of groups in particular simplegroups, finite and algebraic has influenced a number of diverseareas of mathematics. Such areas include topics where groups have beentraditionally applied, such as algebraic combinatorics, finitegeometries, Galois theory and permutation groups, as well as severalmore recent developments.
Asymmetry within social groups
DEFF Research Database (Denmark)
Barker, Jessie; Loope, Kevin J.; Reeve, H. Kern
2016-01-01
Social animals vary in their ability to compete with group members over shared resources and also vary in their cooperative efforts to produce these resources. Competition among groups can promote within-group cooperation, but many existing models of intergroup cooperation do not explicitly account...
DEFF Research Database (Denmark)
Gil, J. I. Burgos; Feliu, Elisenda
2012-01-01
We give a new construction of higher arithmetic Chow groups for quasi-projective arithmetic varieties over a field. Our definition agrees with the higher arithmetic Chow groups defined by Goncharov for projective arithmetic varieties over a field. These groups are the analogue, in the Arakelov co...
van Knippenberg, Daan; Schippers, Michaéla C
2007-01-01
Work group diversity, the degree to which there are differences between group members, may affect group process and performance positively as well as negatively. Much is still unclear about the effects of diversity, however. We review the 1997-2005 literature on work group diversity to assess the state of the art and to identify key issues for future research. This review points to the need for more complex conceptualizations of diversity, as well as to the need for more empirical attention to the processes that are assumed to underlie the effects of diversity on group process and performance and to the contingency factors of these processes.
Groups of Circle Diffeomorphisms
Navas, Andrés
2011-01-01
In recent years scholars from a variety of branches of mathematics have made several significant developments in the theory of group actions. Groups of Circle Diffeomorphisms systematically explores group actions on the simplest closed manifold, the circle. As the group of circle diffeomorphisms is an important subject in modern mathematics, this book will be of interest to those doing research in group theory, dynamical systems, low dimensional geometry and topology, and foliation theory. The book is mostly self-contained and also includes numerous complementary exercises, making it an excell
Indian Academy of Sciences (India)
Mohammad Mehdi Nasrabadi; Ali Gholamian
2014-11-01
Let be a group and $A = \\text{Aut}(G)$ be the group of automorphisms of . Then, the element $[g, ] = g^{-1}(g)$ is an autocommutator of $g \\in G$ and $ \\in A$. Hence, for any natural number the -th autocommutator subgroup of is defined as $K_{m}(G)=\\langle [g,_{1},\\ldots,_{m}]|g\\in G,_{1},\\ldots,_{m}\\in A\\rangle$, where $[g, _{1}, _{2},\\ldots, _{m}] = [[g,_{1},\\ldots,_{m−1}], _{m}]$. In this paper, we introduce the new notion of -nilpotent groups and classify all abelian groups which are -nilpotent groups.
Institute of Scientific and Technical Information of China (English)
ShiEnhui; ZhouLizhen; ZhouYoucheng
2003-01-01
It is proved that there is no chaotic group actions on any topological space with free arc.In this paper the chaotic actions of the group like G×F,where F is a finite group,are studied.In particular,under a suitable assumption ,if F is a cyclic group,then the topological space which admits a chaotic action of Z×F must admit a chatotic homeomorphism.A topological space which admits a chaotic group action but admits no chaotic horneomorphism is constructed.
Energy Technology Data Exchange (ETDEWEB)
Vinegar, Harold J [Bellaire, TX; Coit, William George [Bellaire, TX; Griffin, Peter Terry [Brixham, GB; Hamilton, Paul Taylor [Houston, TX; Hsu, Chia-Fu [Granada Hills, CA; Mason, Stanley Leroy [Allen, TX; Samuel, Allan James [Kular Lumpar, ML; Watkins, Ronnie Wade [Cypress, TX
2012-07-31
A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.
Energy Technology Data Exchange (ETDEWEB)
Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, MY); Watkins, Ronnie Wade (Cypress, TX)
2010-11-09
A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.
DEFF Research Database (Denmark)
Nielsen, Henrik
2012-01-01
Group I intron ribozymes constitute one of the main classes of ribozymes and have been a particularly important model in the discovery of key concepts in RNA biology as well as in the development of new methods. Compared to other ribozyme classes, group I intron ribozymes display considerable......, the intronic products of these pathways have the potential to integrate into targets and to form various types of circular RNA molecules. Thus, group I intron ribozymes and associated elements found within group I introns is a rich source of biological phenomena. This chapter provides a strategy and protocols...... for initial characterization of new group I intron ribozymes....
Milewski, Emil G
2012-01-01
REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Group Theory I includes sets and mapping, groupoids and semi-groups, groups, isomorphisms and homomorphisms, cyclic groups, the Sylow theorems, and finite p-groups.
HR Department
2012-01-01
There will be an e-groups training course on 16 March 2012 which will cover the main e-groups functionalities i.e.: creating and managing e-groups, difference between static and dynamic e-groups, configuring posting restrictions and archives, examples of where e-groups can be used in daily work. Even if you have already worked with e-groups, this may be a good opportunity to learn about the best practices and security related recommendations when using e-groups. You can find more details as well as enrolment form for the training (it’s free) here. The number of places is limited, so enrolling early is recommended. Technical Training Tel. 72844
Steinberg, Robert
2016-01-01
Robert Steinberg's Lectures on Chevalley Groups were delivered and written during the author's sabbatical visit to Yale University in the 1967-1968 academic year. The work presents the status of the theory of Chevalley groups as it was in the mid-1960s. Much of this material was instrumental in many areas of mathematics, in particular in the theory of algebraic groups and in the subsequent classification of finite groups. This posthumous edition incorporates additions and corrections prepared by the author during his retirement, including a new introductory chapter. A bibliography and editorial notes have also been added. This is a great unsurpassed introduction to the subject of Chevalley groups that influenced generations of mathematicians. I would recommend it to anybody whose interests include group theory. -Efim Zelmanov, University of California, San Diego Robert Steinberg's lectures on Chevalley groups were given at Yale University in 1967. The notes for the lectures contain a wonderful exposition of ...
Giannone, Francesca; Giordano, Cecilia; Di Blasi, Maria
2015-10-01
This article describes the history and the prevailing orientations of group psychotherapy in Italy (psychoanalytically oriented, psychodrama, CBT groups) and particularly group analysis. Provided free of charge by the Italian health system, group psychotherapy is growing, but its expansion is patchy. The main pathways of Italian training in the different group psychotherapy orientations are also presented. Clinical-theoretical elaboration on self development, psychopathology related to group experiences, and the methodological attention paid to objectives and methods in different clinical groups are issues related to group therapy in Italy. Difficulties in the relationship between research and clinical practice are discussed, as well as the empirical research network that tries to bridge the gap between research and clinical work in group psychotherapy. The economic crisis in Italy has led to massive cuts in health care and to an increasing demand for some forms of psychological treatment. For these reasons, and because of its positive cost-benefit ratio, group psychotherapy is now considered an important tool in the national health care system to expand the clinical response to different forms of psychological distress.
Directory of Open Access Journals (Sweden)
Ranadhir Mitra
2014-01-01
Full Text Available International Society of Blood Transfusion has recently recognized 33 blood group systems. Apart from ABO and Rhesus system, many other types of antigens have been noticed on the red cell membranes. Blood grouping and cross-matching is one of the few important tests that the anaesthesiologist orders during perioperative period. Hence, a proper understanding of the blood group system, their clinical significance, typing and cross-matching tests, and current perspective are of paramount importance to prevent transfusion-related complications. Nonetheless, the knowledge on blood group system is necessary to approach blood group-linked diseases which are still at the stage of research. This review addresses all these aspects of the blood groups system.
Stochastic Lie group integrators
Malham, Simon J A
2007-01-01
We present Lie group integrators for nonlinear stochastic differential equations with non-commutative vector fields whose solution evolves on a smooth finite dimensional manifold. Given a Lie group action that generates transport along the manifold, we pull back the stochastic flow on the manifold to the Lie group via the action, and subsequently pull back the flow to the corresponding Lie algebra via the exponential map. We construct an approximation to the stochastic flow in the Lie algebra via closed operations and then push back to the Lie group and then to the manifold, thus ensuring our approximation lies in the manifold. We call such schemes stochastic Munthe-Kaas methods after their deterministic counterparts. We also present stochastic Lie group integration schemes based on Castell--Gaines methods. These involve using an underlying ordinary differential integrator to approximate the flow generated by a truncated stochastic exponential Lie series. They become stochastic Lie group integrator schemes if...
Bestvina, Mladen; Vogtmann, Karen
2014-01-01
Geometric group theory refers to the study of discrete groups using tools from topology, geometry, dynamics and analysis. The field is evolving very rapidly and the present volume provides an introduction to and overview of various topics which have played critical roles in this evolution. The book contains lecture notes from courses given at the Park City Math Institute on Geometric Group Theory. The institute consists of a set of intensive short courses offered by leaders in the field, designed to introduce students to exciting, current research in mathematics. These lectures do not duplicate standard courses available elsewhere. The courses begin at an introductory level suitable for graduate students and lead up to currently active topics of research. The articles in this volume include introductions to CAT(0) cube complexes and groups, to modern small cancellation theory, to isometry groups of general CAT(0) spaces, and a discussion of nilpotent genus in the context of mapping class groups and CAT(0) gro...
Goswami, Debashish
2016-01-01
This book offers an up-to-date overview of the recently proposed theory of quantum isometry groups. Written by the founders, it is the first book to present the research on the “quantum isometry group”, highlighting the interaction of noncommutative geometry and quantum groups, which is a noncommutative generalization of the notion of group of isometry of a classical Riemannian manifold. The motivation for this generalization is the importance of isometry groups in both mathematics and physics. The framework consists of Alain Connes’ “noncommutative geometry” and the operator-algebraic theory of “quantum groups”. The authors prove the existence of quantum isometry group for noncommutative manifolds given by spectral triples under mild conditions and discuss a number of methods for computing them. One of the most striking and profound findings is the non-existence of non-classical quantum isometry groups for arbitrary classical connected compact manifolds and, by using this, the authors explicitl...
Johnson, D L
1997-01-01
The aim of this book is to provide an introduction to combinatorial group theory. Any reader who has completed first courses in linear algebra, group theory and ring theory will find this book accessible. The emphasis is on computational techniques but rigorous proofs of all theorems are supplied. This new edition has been revised throughout, including new exercises and an additional chapter on proving that certain groups are infinite.
Semisimple Metacyclic Group Algebras
Indian Academy of Sciences (India)
Gurmeet K Bakshi; Shalini Gupta; Inder Bir S Passi
2011-11-01
Given a group of order $p_1p_2$, where $p_1,p_2$ are primes, and $\\mathbb{F}_q$, a finite field of order coprime to $p_1p_2$, the object of this paper is to compute a complete set of primitive central idempotents of the semisimple group algebra $\\mathbb{F}_q[G]$. As a consequence, we obtain the structure of $\\mathbb{F}_q[G]$ and its group of automorphisms.
Chernikov, Artem; Simon, Pierre
2015-01-01
We study definably amenable NIP groups. We develop a theory of generics, showing that various definitions considered previously coincide, and study invariant measures. Applications include: characterization of regular ergodic measures, a proof of the conjecture of Petrykowski connecting existence of bounded orbits with definable amenability in the NIP case, and the Ellis group conjecture of Newelski and Pillay connecting the model-theoretic connected component of an NIP group with the ideal s...
Laughlin, Patrick R
2011-01-01
Experimental research by social and cognitive psychologists has established that cooperative groups solve a wide range of problems better than individuals. Cooperative problem solving groups of scientific researchers, auditors, financial analysts, air crash investigators, and forensic art experts are increasingly important in our complex and interdependent society. This comprehensive textbook--the first of its kind in decades--presents important theories and experimental research about group problem solving. The book focuses on tasks that have demonstrably correct solutions within mathematical
Aylesworth, Grant R.
Group E at Uaxactún has long been considered an ancient Maya observatory in which an observer could see the sun rise along architectural alignments at the solstices and equinoxes. E-Groups named for the architectural complex list identified in Group E at Uaxactún, typically consist of a large radial pyramid on their west side and three temples on a raised platform on their east side.
Federal Laboratory Consortium — The Explosive Technology Group (ETG) provides diverse technical expertise and an agile, integrated approach to solve complex challenges for all classes of energetic...
CLASSIFICATION OF CRIMINAL GROUPS
Directory of Open Access Journals (Sweden)
Natalia Romanova
2013-06-01
Full Text Available New types of criminal groups are emerging in modern society. These types have their special criminal subculture. The research objective is to develop new parameters of classification of modern criminal groups, create a new typology of criminal groups and identify some features of their subculture. Research methodology is based on the system approach that includes using the method of analysis of documentary sources (materials of a criminal case, method of conversations with themembers of the criminal group, method of testing the members of the criminal group and method of observation. As a result of the conducted research, we have created a new classification of criminal groups. The first type is a lawful group in its form and criminal according to its content (i.e., its target is criminal enrichment. The second type is a criminal organization which is run by so-called "white-collars" that "remain in the shadow". The third type is traditional criminal groups. The fourth type is the criminal group, which openly demonstrates its criminal activity.
Directory of Open Access Journals (Sweden)
Maike Buchin
2015-03-01
Full Text Available The collective motion of a set of moving entities like people, birds, or other animals, is characterized by groups arising, merging, splitting, and ending. Given the trajectories of these entities, we define and model a structure that captures all of such changes using the Reeb graph, a concept from topology. The trajectory grouping structure has three natural parameters that allow more global views of the data in group size, group duration, and entity inter-distance. We prove complexity bounds on the maximum number of maximal groups that can be present, and give algorithms to compute the grouping structure efficiently. We also study how the trajectory grouping structure can be made robust, that is, how brief interruptions of groups can be disregarded in the global structure, adding a notion of persistence to the structure. Furthermore, we showcase the results of experiments using data generated by the NetLogo flocking model and from the Starkey project. The Starkey data describe the movement of elk, deer, and cattle. Although there is no ground truth for the grouping structure in this data, the experiments show that the trajectory grouping structure is plausible and has the desired effects when changing the essential parameters. Our research provides the first complete study of trajectory group evolvement, including combinatorial,algorithmic, and experimental results.
Ellemers, N.; van der Toorn, J
2015-01-01
Morality indicates what is the ‘right’ and the ‘wrong’ way to behave. However, what people see as moral can shift, depending on defining norms and distinctive features of the groups to which they belong. Acting in ways that are considered ‘moral’ by the group secures inclusion and elicits respect
DEFF Research Database (Denmark)
Hjorth, Poul G.
2007-01-01
Since 1998 European Study Groups have been held in Denmark, and Danish companies from LEGO and NOVO to very small high-tech firms have participated. I briefly describe the history, the organisation and the format of the Danish Study Groups, and highlight a few problem solutions....
Fairness and Ability Grouping.
Strike, Kenneth A.
1983-01-01
A recent controversy regarding ability grouping is that it is often perceived as a means whereby racial or class bias can be subtly transformed into mechanisms of discrimination which exhibit the appearance of fairness and objectivity. This article addresses the question of fairness in ability grouping. (CJB)
Walker, Karen
2010-01-01
According to Johnson and Johnson, group work helps increase student retention and satisfaction, develops strong oral communication and social skills, as well as higher self-esteem (University of Minnesota, n.d.). Group work, when planned and implemented deliberately and thoughtfully helps students develop cognitive and leadership skills as well as…
Laursen, Erik K.; Tate, Thomas F.
2012-01-01
For a century, democratic values have called for abandoning coercive approaches and teaching children and youth to be responsible citizens. The authors explore strategies for creating respectful environments and positive group cultures with challenging youth. They offer suggestions to adult group facilitators to support youth in developing…
Koller, Martin M.
Learning in small groups is a practical way to bring about behavior change. The inquiry learning process is perceived to be the most natural and scientific way of learning. Skills developed include those of problem-solving task analysis, decision-making, value formation and adaptability. The art of small group interaction is developed. Factual…
CHINA INTERNATIONAL PUBLISHING GROUP
Institute of Scientific and Technical Information of China (English)
2002-01-01
The China International Publishing Group (CIPG) specializes in international communications. Its operationsencompass reporting, editing, translation, publishing, printing, distribution, and the Internet. It incorporates sevenpublishing companies, five magazines and 19 periodicals, published in over 20 languages. The ChinaInternational Book Trading Corporation, another group facet, distributes all of these to over 180 countries and
DEFF Research Database (Denmark)
Ben David, Nir; Ginosar, Yuval; Meir, Ehud
2014-01-01
The analog of Lagrangians for symplectic forms over finite groups is studied, motivated by the fact that symplectic G -forms with a normal Lagrangian N◃G are in one-to-one correspondence, up to inflation, with bijective 1-cocycle data on the quotients G/N . This yields a method to construct...... groups of central type from such quotients, known as Involutive Yang–Baxter groups. Another motivation for the search of normal Lagrangians comes from a non-commutative generalization of Heisenberg liftings that require normality. Although it is true that symplectic forms over finite nilpotent groups...... always admit Lagrangians, we exhibit an example where none of these subgroups is normal. However, we prove that symplectic forms over nilpotent groups always admit normal Lagrangians if all their p -Sylow subgroups are of order less than p 8 ....
Clay, Adam
2016-01-01
This book deals with the connections between topology and ordered groups. It begins with a self-contained introduction to orderable groups and from there explores the interactions between orderability and objects in low-dimensional topology, such as knot theory, braid groups, and 3-manifolds, as well as groups of homeomorphisms and other topological structures. The book also addresses recent applications of orderability in the studies of codimension-one foliations and Heegaard-Floer homology. The use of topological methods in proving algebraic results is another feature of the book. The book was written to serve both as a textbook for graduate students, containing many exercises, and as a reference for researchers in topology, algebra, and dynamical systems. A basic background in group theory and topology is the only prerequisite for the reader.
Supervision and group dynamics
DEFF Research Database (Denmark)
Hansen, Søren; Jensen, Lars Peter
2004-01-01
as well as at Aalborg University. The first visible result has been participating supervisors telling us that the course has inspired them to try supervising group dynamics in the future. This paper will explore some aspects of supervising group dynamics as well as, how to develop the Aalborg model...... An important aspect of the problem based and project organized study at Aalborg University is the supervision of the project groups. At the basic education (first year) it is stated in the curriculum that part of the supervisors' job is to deal with group dynamics. This is due to the experience...... that many students are having difficulties with practical issues such as collaboration, communication, and project management. Most supervisors either ignore this demand, because they do not find it important or they find it frustrating, because they do not know, how to supervise group dynamics...
Automorphism groups of Quandles
Elhamdadi, M; Restrepo, R
2010-01-01
We prove that the automorphism group of the dihedral quandle with n elements is isomorphic to the affine group of the integers mod n, and also obtain the inner automorphism group of this quandle. In [9], automorphism groups of quandles (up to isomorphisms) of order less than or equal to 5 were given. With the help of the software Maple, we compute the inner and automorphism groups of all seventy three quandles of order six listed in the appendix of [4]. Since computations of automorphisms of quandles relates to the problem of classification of quandles, we also describe an algorithm implemented in C for computing all quandles (up to isomorphism) of order less than or equal to nine.
Perceiving persons and groups.
Hamilton, D L; Sherman, S J
1996-04-01
This article analyzes the similarities and differences in forming impressions of individuals and in developing conceptions of groups. In both cases, the perceiver develops a mental conception of the target (individual or group) on the basis of available information and uses that information to make judgments about that person or group. However, a review of existing evidence reveals differences in the outcomes of impressions formed of individual and group targets, even when those impressions are based on the very same behavioral information. A model is proposed to account for these differences. The model emphasizes the role of differing expectancies of unity and coherence in individual and group targets, which in turn engage different mechanisms for processing information and making judgments. Implications of the model are discussed.
Approximate solutions to infinite dimensional LQ problems over infinite time horizon
Institute of Scientific and Technical Information of China (English)
PAN; Liping; ZHANG; Xu; CHEN; Qihong
2006-01-01
This paper is addressed to develop an approximate method to solve a class of infinite dimensional LQ optimal regulator problems over infinite time horizon. Our algorithm is based on a construction of approximate solutions which solve some finite dimensional LQ optimal regulator problems over finite time horizon, and it is shown that these approximate solutions converge strongly to the desired solution in the double limit sense.
Stability of Viscous St. Venant Roll Waves: From Onset to Infinite Froude Number Limit
Barker, Blake; Johnson, Mathew A.; Noble, Pascal; Rodrigues, L. Miguel; Zumbrun, Kevin
2016-09-01
We study the spectral stability of roll wave solutions of the viscous St. Venant equations modeling inclined shallow water flow, both at onset in the small Froude number or "weakly unstable" limit F→ 2^+ and for general values of the Froude number F, including the limit F→ + ∞. In the former, F→ 2^+ , limit, the shallow water equations are formally approximated by a Korteweg-de Vries/Kuramoto-Sivashinsky (KdV-KS) equation that is a singular perturbation of the standard Korteweg-de Vries (KdV) equation modeling horizontal shallow water flow. Our main analytical result is to rigorously validate this formal limit, showing that stability as F→ 2^+ is equivalent to stability of the corresponding KdV-KS waves in the KdV limit. Together with recent results obtained for KdV-KS by Johnson-Noble-Rodrigues-Zumbrun and Barker, this gives not only the first rigorous verification of stability for any single viscous St. Venant roll wave, but a complete classification of stability in the weakly unstable limit. In the remainder of the paper, we investigate numerically and analytically the evolution of the stability diagram as Froude number increases to infinity. Notably, we find transition at around F=2.3 from weakly unstable to different, large-F behavior, with stability determined by simple power-law relations. The latter stability criteria are potentially useful in hydraulic engineering applications, for which typically 2.5≤ F≤ 6.0.
"To Infinitive" and "-ing" Form Divergence in British and American English.
Peters, F. J. J.
1980-01-01
Discusses two basic areas of difference between British and American English, namely the complementation of certain participles and the complementation of certain verbs. Complementation after "concerned" and "interested" is illustrated by several examples taken from speech and from newspaper advertisements. (AMH)
Two Paths to Infinite Thought: Alain Badiou and Jacques Derrida on the Question of the Whole
Directory of Open Access Journals (Sweden)
Lynn Sebastian Purcel
2012-05-01
Full Text Available This essay defends an idea that is no longer fashionable: that there is a whole. The motivation for a defense of this notion has nothing to do with intellectual conservatism or a penchant for Hegel. Rather, what we hope to establish is a second path into what Alain Badiou has called the ‘Cantorian Revolution’. In order to open this path we undertake a three-fold task. First, we deconstruct Badiou’s onto-logical project by isolating the suppressed significance of Ernst Zermelo. This point allows us to recover a Cantorian possibility for addressing the infinite as an inconsistent whole. Second, we turn to work by the logician Graham Priest in order to remove the absurdity of discussing true contradictions. Finally, we return to Jacques Derrida’s early work on Husserl in order to chart a phenomenological path to an affirmation of an inconsistent whole. We close, then, with the implications for contemporary philosophy.
THE ASYMPTOTIC LIMIT FOR A COMBUSTION MODEL IN REGARD TO INFINITE REACTION RATE
Institute of Scientific and Technical Information of China (English)
Ying Longan
2008-01-01
The Zeldovich-von Neumann-Doring model and the Chapman-Jouguet model for a simplified combustion model-Majda's model is studied. The author proves a uniform maximum norm estimate, then proves that as the rate of chemical reaction tends to infinity the solutions to the Zeldovich-von Neumann-Doring model tend to that of the Chapman-Jouguet model. The type of combustion waves is studied. This result is compared with the result of the projection and finite difference method for the same model.
Stability of Viscous St. Venant Roll Waves: From Onset to Infinite Froude Number Limit
Barker, Blake; Johnson, Mathew A.; Noble, Pascal; Rodrigues, L. Miguel; Zumbrun, Kevin
2017-02-01
We study the spectral stability of roll wave solutions of the viscous St. Venant equations modeling inclined shallow water flow, both at onset in the small Froude number or "weakly unstable" limit F→ 2^+ and for general values of the Froude number F, including the limit F→ +∞ . In the former, F→ 2^+, limit, the shallow water equations are formally approximated by a Korteweg-de Vries/Kuramoto-Sivashinsky (KdV-KS) equation that is a singular perturbation of the standard Korteweg-de Vries (KdV) equation modeling horizontal shallow water flow. Our main analytical result is to rigorously validate this formal limit, showing that stability as F→ 2^+ is equivalent to stability of the corresponding KdV-KS waves in the KdV limit. Together with recent results obtained for KdV-KS by Johnson-Noble-Rodrigues-Zumbrun and Barker, this gives not only the first rigorous verification of stability for any single viscous St. Venant roll wave, but a complete classification of stability in the weakly unstable limit. In the remainder of the paper, we investigate numerically and analytically the evolution of the stability diagram as Froude number increases to infinity. Notably, we find transition at around F=2.3 from weakly unstable to different, large- F behavior, with stability determined by simple power-law relations. The latter stability criteria are potentially useful in hydraulic engineering applications, for which typically 2.5≤ F≤ 6.0.
Blaskiewicz, M.; Dooling, J.; Dyachkov, M.; Fedotov, A.; Gluckstern, R.; Hahn, H.; Huang, H.; Kurennoy, S.; Linnecar, T.; Shaposhnikova, E.; Stupakov, G.; Toyama, T.; Wang, J. G.; Weng, W. T.; Zhang, S. Y.; Zotter, B.
1999-12-01
The impedance working group was charged to reply to the following 8 questions relevant to the design of high-intensity proton machines such as the SNS or the FNAL driver. These questions were first discussed one by one in the whole group, then each ne of them assigned to one member to summarize. On the lst morning these contributions were publicly read, re-discussed and re-written where required—hence they are not the opinion of a particular person, but rather the averaged opinion of all members of the working group. (AIP)
Energy Technology Data Exchange (ETDEWEB)
Dunigan, T.; Cao, C.
1997-08-01
This report describes an architecture and implementation for doing group key management over a data communications network. The architecture describes a protocol for establishing a shared encryption key among an authenticated and authorized collection of network entities. Group access requires one or more authorization certificates. The implementation includes a simple public key and certificate infrastructure. Multicast is used for some of the key management messages. An application programming interface multiplexes key management and user application messages. An implementation using the new IP security protocols is postulated. The architecture is compared with other group key management proposals, and the performance and the limitations of the implementation are described.
Bhavnani, Ravi; Miodownik, Dan; Riolo, Rick
Violence can take place along a multitude of cleavages, e.g., (1) between political groups like the Kach Movement, pitting West Bank settlers against Israeli governments supporting the land-for-peace agenda; (2) between religious groups, such as Christians and Muslims in the Nigerian cities of Jos and Kaduna; (3) along class lines, as in India between Dalits and members of the Brahminical upper castes, upwardly mobile intermediate castes, and even other backward castes such as the Thevars; and (4) between ethnic groups such as the Hutu and Tutsi, both within and across state boundaries in Rwanda and neighboring Burundi.
Creativity and group innovation
Nijstad, B.A.; de Dreu, C.K.W.
2002-01-01
Comments on M. West's article regarding the validity of an integrative model of creativity and innovation implementation in work groups. Variables affecting the level of team innovation; Relationship between predictors and team innovation; Promotion of constructive conflict.
Directory of Open Access Journals (Sweden)
Coghetto Roland
2015-06-01
Full Text Available We translate the articles covering group theory already available in the Mizar Mathematical Library from multiplicative into additive notation. We adapt the works of Wojciech A. Trybulec [41, 42, 43] and Artur Korniłowicz [25].
Homogeneous group, research, institution
Directory of Open Access Journals (Sweden)
Francesca Natascia Vasta
2014-09-01
Full Text Available The work outlines the complex connection among empiric research, therapeutic programs and host institution. It is considered the current research state in Italy. Italian research field is analyzed and critic data are outlined: lack of results regarding both the therapeutic processes and the effectiveness of eating disorders group analytic treatment. The work investigates on an eating disorders homogeneous group, led into an eating disorder outpatient service. First we present the methodological steps the research is based on including the strong connection among theory and clinical tools. Secondly clinical tools are described and the results commented. Finally, our results suggest the necessity of validating some more specifical hypothesis: verifying the relationship between clinical improvement (sense of exclusion and painful emotions reduction and specific group therapeutic processes; verifying the relationship between depressive feelings, relapses and transition trough a more differentiated groupal field.Keywords: Homogeneous group; Eating disorders; Institutional field; Therapeutic outcome
Milroy, Leslie
1982-01-01
Explores the tension between the manner in which intergroup language differences are used to symbolize group membership and the manner in which they mirror and reinforce social class and power distinctions. (EKN)
Homogenous finitary symmetric groups
Directory of Open Access Journals (Sweden)
Otto. H. Kegel
2015-03-01
Full Text Available We characterize strictly diagonal type of embeddings of finitary symmetric groups in terms of cardinality and the characteristic. Namely, we prove the following. Let kappa be an infinite cardinal. If G=underseti=1stackrelinftybigcupG i , where G i =FSym(kappan i , (H=underseti=1stackrelinftybigcupH i , where H i =Alt(kappan i , is a group of strictly diagonal type and xi=(p 1 ,p 2 ,ldots is an infinite sequence of primes, then G is isomorphic to the homogenous finitary symmetric group FSym(kappa(xi (H is isomorphic to the homogenous alternating group Alt(kappa(xi , where n 0 =1,n i =p 1 p 2 ldotsp i .
Nelson, Denise Cabrero
2000-01-01
Describes how camp counselors can foster camaraderie among campers through participative decision making, name games, listening, adventure courses, storytelling, spending time in nature, decorating cabins, avoiding favoritism, setting rules, admitting faults, setting group goals, and praising sincere efforts. (TD)
Singular Renormalization Group Equations
Minoru, HIRAYAMA; Department of Physics, Toyama University
1984-01-01
The possible behaviour of the effective charge is discussed in Oehme and Zimmermann's scheme of the renormalization group equation. The effective charge in an example considered oscillates so violently in the ultraviolet limit that the bare charge becomes indefinable.
Toleration, Groups, and Multiculturalism
DEFF Research Database (Denmark)
Lægaard, Sune
2014-01-01
to the political and social relationship between the subject and the objects of toleration. Finally, toleration is often argued to be a normative requirement on the basis of the way it affects the object or receiver of toleration, e.g. on the basis of the good of or right to freedom from non-interference which......The chapter considers how groups might be relevant as objects of policies of toleration and the different senses 'group' might have in relation to questions of toleration. The chapter argues that groups can be relevant to toleration in several different ways as objects of toleration. Toleration...... is routinely defined as involving an objection component, a power requirement and an acceptance component. The objection and acceptance components refer to reasons or dispositions of the subjects of toleration, e.g. public authorities deciding how to act in relation to groups. The power condition refers...
2006-01-01
The Radioactive Waste Section of the Radiation Protection Group wishes to inform you that the Radioactive Waste Treatment Centre will be closed on the afternoon of Tuesday 19 December 2006. Thank-you for your understanding.
Parton Distributions Working Group
Energy Technology Data Exchange (ETDEWEB)
de Barbaro, L.; Keller, S. A.; Kuhlmann, S.; Schellman, H.; Tung, W.-K.
2000-07-20
This report summarizes the activities of the Parton Distributions Working Group of the QCD and Weak Boson Physics workshop held in preparation for Run II at the Fermilab Tevatron. The main focus of this working group was to investigate the different issues associated with the development of quantitative tools to estimate parton distribution functions uncertainties. In the conclusion, the authors introduce a Manifesto that describes an optimal method for reporting data.
Directory of Open Access Journals (Sweden)
S. Nazmul
2014-03-01
Full Text Available Notions of Lowen type fuzzy soft topological space are introduced and some of their properties are established in the present paper. Besides this, a combined structure of a fuzzy soft topological space and a fuzzy soft group, which is termed here as fuzzy soft topological group is introduced. Homomorphic images and preimages are also examined. Finally, some definitions and results on fuzzy soft set are studied.
Kadushin, Charles
2005-01-01
Homans' insights that interaction and sentiment are in a feedback loop that includes clique formation, social ranking and leadership are formalized and derived from a set of limited assumptions and propositions. Freeman's model of groups is used to detect pure informal groups, those that are not consequential upon anything else than sheer hanging around. It produces a system of cliques and rankings based purely on the rates of transitive triads that may include a third who is only weakly conn...
Auslander, Maurice
2014-01-01
This classic monograph is geared toward advanced undergraduates and graduate students. The treatment presupposes some familiarity with sets, groups, rings, and vector spaces. The four-part approach begins with examinations of sets and maps, monoids and groups, categories, and rings. The second part explores unique factorization domains, general module theory, semisimple rings and modules, and Artinian rings. Part three's topics include localization and tensor products, principal ideal domains, and applications of fundamental theorem. The fourth and final part covers algebraic field extensions
Gal'mak, Alexander M
2011-01-01
The book "N-ary Groups" (in Russian) consists of two Parts. It is intended on the one hand as an initial introduction to the theory of n-ary groups, and on the other hand it contains the published results by the author on this subject. At present, the theory of n-ary groups developing but slowly from group theory. Nonetheless, ternary and n-ary structures have recently been applied to modern models of elementary particle physics. One of the author's goals in this book is to draw the attention of mathematicians and theoretical physicists to the theory of n-ary groups, to some of its distinguishing features, and to details relevant to its further development and application. Part I: Theorems of Post and Gluskin-Hosszu. 1.1. Classical definitions of n-ary groups. Examples. 1.2. Analogies of identity and inverse elements. 1.3. Equivalent sequences. 1.4. Post's coset theorem. 1.5. Theorem of Gluskin-Hosszu. 1.6. Connection between the Post's coset theorem and theorem of Gluskin-Hosszu. Addition and comments. Part ...
Energy Technology Data Exchange (ETDEWEB)
1994-01-01
In December 1992, western governors and four federal agencies established a Federal Advisory Committee to Develop On-site Innovative Technologies for Environmental Restoration and Waste Management (the DOIT Committee). The purpose of the Committee is to advise the federal government on ways to improve waste cleanup technology development and the cleanup of federal sites in the West. The Committee directed in January 1993 that information be collected from a wide range of potential stakeholders and that innovative technology candidate projects be identified, organized, set in motion, and evaluated to test new partnerships, regulatory approaches, and technologies which will lead to improve site cleanup. Five working groups were organized, one to develop broad project selection and evaluation criteria and four to focus on specific contaminant problems. A Coordinating Group comprised of working group spokesmen and federal and state representatives, was set up to plan and organize the routine functioning of these working groups. The working groups were charged with defining particular contaminant problems; identifying shortcomings in technology development, stakeholder involvement, regulatory review, and commercialization which impede the resolution of these problems; and identifying candidate sites or technologies which could serve as regional innovative demonstration projects to test new approaches to overcome the shortcomings. This report from the Coordinating Group to the DOIT Committee highlights the key findings and opportunities uncovered by these fact-finding working groups. It provides a basis from which recommendations from the DOIT Committee to the federal government can be made. It also includes observations from two public roundtables, one on commercialization and another on regulatory and institutional barriers impeding technology development and cleanup.
Facilities removal working group
Energy Technology Data Exchange (ETDEWEB)
NONE
1997-03-01
This working group`s first objective is to identify major economic, technical, and regulatory constraints on operator practices and decisions relevant to offshore facilities removal. Then, the group will try to make recommendations as to regulatory and policy adjustments, additional research, or process improvements and/or technological advances, that may be needed to improve the efficiency and effectiveness of the removal process. The working group will focus primarily on issues dealing with Gulf of Mexico platform abandonments. In order to make the working group sessions as productive as possible, the Facilities Removal Working Group will focus on three topics that address a majority of the concerns and/or constraints relevant to facilities removal. The three areas are: (1) Explosive Severing and its Impact on Marine Life, (2) Pile and Conductor Severing, and (3) Deep Water Abandonments This paper will outline the current state of practice in the offshore industry, identifying current regulations and specific issues encountered when addressing each of the three main topics above. The intent of the paper is to highlight potential issues for panel discussion, not to provide a detailed review of all data relevant to the topic. Before each panel discussion, key speakers will review data and information to facilitate development and discussion of the main issues of each topic. Please refer to the attached agenda for the workshop format, key speakers, presentation topics, and panel participants. The goal of the panel discussions is to identify key issues for each of the three topics above. The working group will also make recommendations on how to proceed on these key issues.
Springer, T A
1998-01-01
"[The first] ten chapters...are an efficient, accessible, and self-contained introduction to affine algebraic groups over an algebraically closed field. The author includes exercises and the book is certainly usable by graduate students as a text or for self-study...the author [has a] student-friendly style… [The following] seven chapters... would also be a good introduction to rationality issues for algebraic groups. A number of results from the literature…appear for the first time in a text." –Mathematical Reviews (Review of the Second Edition) "This book is a completely new version of the first edition. The aim of the old book was to present the theory of linear algebraic groups over an algebraically closed field. Reading that book, many people entered the research field of linear algebraic groups. The present book has a wider scope. Its aim is to treat the theory of linear algebraic groups over arbitrary fields. Again, the author keeps the treatment of prerequisites self-contained. The material of t...
Matrix groups for undergraduates
Tapp, Kristopher
2016-01-01
Matrix groups touch an enormous spectrum of the mathematical arena. This textbook brings them into the undergraduate curriculum. It makes an excellent one-semester course for students familiar with linear and abstract algebra and prepares them for a graduate course on Lie groups. Matrix Groups for Undergraduates is concrete and example-driven, with geometric motivation and rigorous proofs. The story begins and ends with the rotations of a globe. In between, the author combines rigor and intuition to describe the basic objects of Lie theory: Lie algebras, matrix exponentiation, Lie brackets, maximal tori, homogeneous spaces, and roots. This second edition includes two new chapters that allow for an easier transition to the general theory of Lie groups. From reviews of the First Edition: This book could be used as an excellent textbook for a one semester course at university and it will prepare students for a graduate course on Lie groups, Lie algebras, etc. … The book combines an intuitive style of writing w...
Energy Technology Data Exchange (ETDEWEB)
David G. Loomis
2012-05-28
The Illinois Wind Working Group (IWWG) was founded in 2006 with about 15 members. It has grown to over 200 members today representing all aspects of the wind industry across the State of Illinois. In 2008, the IWWG developed a strategic plan to give direction to the group and its activities. The strategic plan identifies ways to address critical market barriers to the further penetration of wind. The key to addressing these market barriers is public education and outreach. Since Illinois has a restructured electricity market, utilities no longer have a strong control over the addition of new capacity within the state. Instead, market acceptance depends on willing landowners to lease land and willing county officials to site wind farms. Many times these groups are uninformed about the benefits of wind energy and unfamiliar with the process. Therefore, many of the project objectives focus on conferences, forum, databases and research that will allow these stakeholders to make well-educated decisions.
Transitive conformal holonomy groups
Alt, Jesse
2011-01-01
For $(M,[g])$ a conformal manifold of signature $(p,q)$ and dimension at least three, the conformal holonomy group $\\mathrm{Hol}(M,[g]) \\subset O(p+1,q+1)$ is an invariant induced by the canonical Cartan geometry of $(M,[g])$. We give a description of all possible connected conformal holonomy groups which act transitively on the M\\"obius sphere $S^{p,q}$, the homogeneous model space for conformal structures of signature $(p,q)$. The main part of this description is a list of all such groups which also act irreducibly on $\\R^{p+1,q+1}$. For the rest, we show that they must be compact and act decomposably on $\\R^{p+1,q+1}$, in particular, by known facts about conformal holonomy the conformal class $[g]$ must contain a metric which is locally isometric to a so-called special Einstein product.
Quantum threshold group signature
Institute of Scientific and Technical Information of China (English)
2008-01-01
In most situations, the signer is generally a single person. However, when the message is written on behalf of an organization, a valid message may require the approval or consent of several persons. Threshold signature is a solution to this problem. Generally speaking, as an authority which can be trusted by all members does not exist, a threshold signature scheme without a trusted party appears more attractive. Following some ideas of the classical Shamir’s threshold signature scheme, a quantum threshold group signature one is proposed. In the proposed scheme, only t or more of n persons in the group can generate the group signature and any t-1 or fewer ones cannot do that. In the verification phase, any t or more of n signature receivers can verify the message and any t-1 or fewer receivers cannot verify the validity of the signature.
Hennink, Monique M
2014-01-01
The Understanding Research series focuses on the process of writing up social research. The series is broken down into three categories: Understanding Statistics, Understanding Measurement, and Understanding Qualitative Research. The books provide researchers with guides to understanding, writing, and evaluating social research. Each volume demonstrates how research should be represented, including how to write up the methodology as well as the research findings. Each volume also reviews how to appropriately evaluate published research. Focus Group Discussions addresses the challenges associated with conducting and writing focus group research. It provides detailed guidance on the practical and theoretical considerations in conducting focus group discussions including: designing the discussion guide, recruiting participants, training a field team, moderating techniques and ethical considerations. Monique Hennink describes how a methodology section is read and evaluated by others, such as journal reviewers or ...
Güntert, Manuel
2008-01-01
This is a research about hierarchies in student groups. It shows how they are built und what sense they have. The position of a student in his student peer group is evaluated. The influence of the look, the style, the behaviour of the other sex, the gender, the origin, the prehistory, the appearance, achievement and their effect on hierarchies is analysed and the impact of charisma and organisation are compared. The meaning of this research is to indicate how a student must be to get the lead...
Rudin, Walter
2011-01-01
In the late 1950s, many of the more refined aspects of Fourier analysis were transferred from their original settings (the unit circle, the integers, the real line) to arbitrary locally compact abelian (LCA) groups. Rudin's book, published in 1962, was the first to give a systematic account of these developments and has come to be regarded as a classic in the field. The basic facts concerning Fourier analysis and the structure of LCA groups are proved in the opening chapters, in order to make the treatment relatively self-contained.
Energy Technology Data Exchange (ETDEWEB)
Evan Hughes
2009-01-08
The Upgraded Coal Interest Group (UCIG) is an EPRI 'users group' that focuses on clean, low-cost options for coal-based power generation. The UCIG covers topics that involve (1) pre-combustion processes, (2) co-firing systems and fuels, and (3) reburn using coal-derived or biomass-derived fuels. The UCIG mission is to preserve and expand the economic use of coal for energy. By reducing the fuel costs and environmental impacts of coal-fired power generation, existing units become more cost effective and thus new units utilizing advanced combustion technologies are more likely to be coal-fired.
Bishop, David M
1993-01-01
Group theoretical principles are an integral part of modern chemistry. Not only do they help account for a wide variety of chemical phenomena, they simplify quantum chemical calculations. Indeed, knowledge of their application to chemical problems is essential for students of chemistry. This complete, self-contained study, written for advanced undergraduate-level and graduate-level chemistry students, clearly and concisely introduces the subject of group theory and demonstrates its application to chemical problems.To assist chemistry students with the mathematics involved, Professor Bishop ha
DEFF Research Database (Denmark)
Bøgh, Kenneth Sejdenfaden; Skovsgaard, Anders; Jensen, Christian S.
2013-01-01
of PoIs relevant to a user's intent has became a problem of automated spatio-textual information retrieval. Over the last several years, substantial research has gone into the invention of functionality and efficient implementations for retrieving nearby PoIs. However, with a couple of exceptions....... Such groups are relevant to users who wish to conveniently explore several options before making a decision such as to purchase a specific product. Specifically, we demonstrate a practical proposal for finding top-k PoI groups in response to a query. We show how problem parameter settings can be mapped...
Homomorphisms between Kaehler groups
Arapura, Donu
2009-01-01
This is partly a survey and partly a research article. Some known results and open problems about Kaehler groups (fundamental groups of compact Kaehler manifolds) are discussed. A new notion of Kaehler homomorphism is introduced. This is a homomorphism induced by a holomorphic map between these types of manifolds. Some obstructions for a homomorphism to be Kaehler are discussed. Among these is the main result on the vanishing of a certain cohomology class associated to such map. This is reduced to the decomposition theorem for perverse sheaves suitably extended to Kaehler orbifolds.
Group Based Interference Alignment
Ma, Yanjun; Chen, Rui; Yao, Junliang
2010-01-01
in $K$-user single-input single-output (SISO) frequency selective fading interference channels, it is shown that the achievable multiplexing gain is almost surely $K/2$ by using interference alignment (IA). However when the signaling dimensions is limited, allocating all the resource to all the users simultaneously is not optimal. According to this problem, a group based interference alignment (GIA) scheme is proposed and a search algorithm is designed to get the group patterns and the resource allocation among them. Analysis results show that our proposed scheme achieves a higher multiplexing gain when the resource is limited.
The Multiplication Group of an AG-group
Shah, Muhammad; Ali, Asif; Ahmad, Imtiaz; Sorge, Volker
2014-01-01
We investigate the multiplication group of a special class of quasigroup called AG-group. We prove some interesting results such as: the multiplication group of an AG-group of order n is non-abelian group of order 2n and its left section is an abelian group of order n. The inner mapping group of an AG-group of any order is a cyclic group of order 2.
Lacunarity for compact groups.
Edwards, R E; Hewitt, E; Ross, K A
1971-01-01
Let G be a compact Abelian group with character group X. A subset Delta of X is called a [unk](q) set (1 < q < infinity) if for all trigonometric polynomials f = [unk](k=1) (n) alpha(k)chi(k) (chi(1),...,chi(n) [unk] Delta) an inequality parallelf parallel(q) [unk] [unk] parallelf parallel(1) obtains, where [unk] is a positive constant depending only on Delta. The subset Delta is called a Sidon set if every bounded function on Delta can be matched by a Fourier-Stieltjes transform. It is known that every Sidon set is a [unk](q) set for all q. For G = T, X = Z, Rudin (J. Math. Mech., 9, 203 (1960)) has found a set that is [unk](q) for all q but not Sidon. We extend this result to all infinite compact Abelian groups G: the character group X contains a subset Delta that is [unk](q) for all q, 1 < q < infinity, but Delta is not a Sidon set.
Institute of Scientific and Technical Information of China (English)
Yan Feng
2007-01-01
@@ As the founder of China's automobile industry, FAW Group Corporation (FAW) has maintained a dominant position in the automotive industry since its founding in 1953 in terms of its total assets, Production capacity, domestic and international sales, market share, and brand recognition.
Working Group Report: Neutrinos
Energy Technology Data Exchange (ETDEWEB)
de Gouvea, A.; Pitts, K.; Scholberg, K.; Zeller, G. P. [et al.
2013-10-16
This document represents the response of the Intensity Frontier Neutrino Working Group to the Snowmass charge. We summarize the current status of neutrino physics and identify many exciting future opportunities for studying the properties of neutrinos and for addressing important physics and astrophysics questions with neutrinos.
Parton Distributions Working Group
de Barbaro, Lucy; Brock, R.; Casey, D.; Demina, R.; Giele, W.T.; Hirosky, R.; Huston, J.; Kalk, J.; Keller, S.A.; Klasen, M.; Kosower, D.A.; Kramer, M.; Kretzer, S.; Kuhlmann, S.; Martin, R.; Olness, Fredrick I.; Plehn, T.; Pumplin, J.; Scalise, R.J.; Schellman, H.; Smith, J.; Soper, D.E.; Sterman, George F.; Stump, D.; Tung, W.K.; Varelas, N.; Vogelsang, W.; Yang, Un-Ki
2000-01-01
The main focus of this working group was to investigate the different issues associated with the development of quantitative tools to estimate parton distribution functions uncertainties. In the conclusion, we introduce a "Manifesto" that describes an optimal method for reporting data.
An Intergenerational Women's Group.
Fogler, Janet
1989-01-01
Discusses the Intergenerational Women's Group, formed to provide social support and an interchange of ideas between women of different generations. Provides a model for such a program that may be offered in geriatric medical clinics. Discusses the impact of intergenerational support for both the old and the young. (Author/BHK)
Directory of Open Access Journals (Sweden)
Albert H. Adriaanse
1995-01-01
Full Text Available Objective: Group B streptococcus (GBS, Streptococcus agalactiae is an important cause of neonatal sepsis. Prevention is possible by intrapartum screening for maternal GBS carriership and antimicrobial treatment of colonized women with risk factors during labor. The conflicting results of diagnostic performance are reported both for the newly developed rapid GBS antigen tests and Gram's stain.
Unclonable Group Identification
DEFF Research Database (Denmark)
Damgård, Ivan Bjerre; Dupont, Kasper; Pedersen, Michael Østergaard
2006-01-01
We introduce and motivate the concept of unclonable group identification, that provides maximal protection against sharing of identities while still protecting the anonymity of users. We prove that the notion can be realized from any one-way function and suggest a more efficient implementation...
African Journals Online (AJOL)
Ehab
Professor of Pediatric Allergy and Immunology, Ain Shams University, Cairo, Egypt. Age groups ... fever, emotional stress, travel or other disruption of routine ... Anaphylaxis following immunization is a rare event ... estimated.15,16 An estimate of 1 per 100 000 after. MMR ... pregnancy include low back pain, uterine cramps,.
African Journals Online (AJOL)
asparagine amino acid residues and other amino acids having amide groups at ... Amines were reacted with Boc-Asp-on-OBzl in the presence of DCC to give .... systems chloroform-ethyl acetate (321 iv/v) (A) and chloroform-methanol-glacial acetic ... three 12 mL portions of 5% aqueous sodium bicarbonate, and ﬁve 15 mL ...
Grouping Illumination Frameworks
Zdravkovic, Suncica; Economou, Elias; Gilchrist, Alan
2012-01-01
According to Koffka (1935), the lightness of a target surface is determined by the relationship between the target and the illumination frame of reference to which it belongs. However, each scene contains numerous illumination frames, and judging each one separately would lead to an enormous amount of computing. Grouping those frames that are in…
Convolution Operators on Groups
Derighetti, Antoine
2011-01-01
This volume is devoted to a systematic study of the Banach algebra of the convolution operators of a locally compact group. Inspired by classical Fourier analysis we consider operators on Lp spaces, arriving at a description of these operators and Lp versions of the theorems of Wiener and Kaplansky-Helson.
1980-01-01
The Radiobiology Group carries out experiments to study the effect of radiation on living cells. The photo shows the apparatus for growing broad beans which have been irradiated by 250 GeV protons. The roots are immersed in a tank of running water (CERN Weekly Bulletin 26 January 1981 and Annual Report 1980 p. 160). Karen Panman, Marilena Streit-Bianchi, Roger Paris.
The leukosis/sarcoma (L/S) group of diseases designates a variety of transmissible benign and malignant neoplasms of chickens caused by members that belong to the family Retroviridae. Because the expansion of the literature on this disease, it is no longer feasible to cite all relevant publications ...
Cornwell, J F
1989-01-01
Recent devopments, particularly in high-energy physics, have projected group theory and symmetry consideration into a central position in theoretical physics. These developments have taken physicists increasingly deeper into the fascinating world of pure mathematics. This work presents important mathematical developments of the last fifteen years in a form that is easy to comprehend and appreciate.
Dimensions of Group Interaction
Dawidowicz, Paula
2008-01-01
The correlation between positive and negative group interactions and one or another of individuals' attitudes or characteristics--moral development, critical thinking, resilience, and self efficacy--has been examined previously. However, no systemic examination of individuals' development of patterns of these characteristics and those patterns'…
Abandoning wells working group
Energy Technology Data Exchange (ETDEWEB)
NONE
1997-03-01
The primary objective of this working group is to identify major technical, regulatory, and environmental issues that are relevant to the abandonment of offshore wellbores. Once the issues have been identified, the working group also has the objective of making recommendations or providing potential solutions for consideration. Areas for process improvement will be identified and {open_quotes}best practices{close_quotes} will be discussed and compared to {open_quotes}minimum standards.{close_quotes} The working group will primarily focus on wellbore abandonment in the Gulf of Mexico. However, workshop participants are encouraged to discuss international issues which may be relevant to wellbore abandonment practices in the Gulf of Mexico. The Abandoning Wells Group has identified several major areas for discussion that have concerns related to both operators and service companies performing wellbore abandonments in the Gulf of Mexico. The following broad topics were selected for the agenda: (1) MMS minimum requirements and state regulations. (2) Co-existence of best practices, new technology, and P & A economics. (3) Liability and environmental issues relating to wellbore abandonment.
TS Department
2008-01-01
Please note that owing the preparations for the Open Days, the FM Group will not able to handle specific requests for waste collection from 2nd to 6th of April, nor removal or PC transport requests between the 31 March and 11 April. We kindly ask you to plan the collection of all types of waste and any urgent transport of office furniture or PCs before 31 March. Waste collection requests must be made by contacting FM Support on 77777 or at the e-mail address mailto:Fm.Support@cern.ch; removal of office furniture or PC transport requests must be made using the EDH ‘Transport request’ form (select "Removals" or "PC transport" from the drop-down menu). For any question concerning the sorting of waste, please consult the following web site: http://dechets-waste.web.cern.ch/dechets-waste/ Thank you for your understanding and collaboration. TS/FM Group
Group and representation theory
Vergados, J D
2017-01-01
This volume goes beyond the understanding of symmetries and exploits them in the study of the behavior of both classical and quantum physical systems. Thus it is important to study the symmetries described by continuous (Lie) groups of transformations. We then discuss how we get operators that form a Lie algebra. Of particular interest to physics is the representation of the elements of the algebra and the group in terms of matrices and, in particular, the irreducible representations. These representations can be identified with physical observables. This leads to the study of the classical Lie algebras, associated with unitary, unimodular, orthogonal and symplectic transformations. We also discuss some special algebras in some detail. The discussion proceeds along the lines of the Cartan-Weyl theory via the root vectors and root diagrams and, in particular, the Dynkin representation of the roots. Thus the representations are expressed in terms of weights, which are generated by the application of the elemen...
Mindfulness for group facilitation
DEFF Research Database (Denmark)
Adriansen, Hanne Kirstine; Krohn, Simon
2014-01-01
In this paper, we argue that mindfulness techniques can be used for enhancing the outcome of group performance. The word mindfulness has different connotations in the academic literature. Broadly speaking there is ‘mindfulness without meditation’ or ‘Western’ mindfulness which involves active...... thinking and ‘Eastern’ mindfulness which refers to an open, accepting state of mind, as intended with Buddhist-inspired techniques such as meditation. In this paper, we are interested in the latter type of mindfulness and demonstrate how Eastern mindfulness techniques can be used as a tool for facilitation....... A brief introduction to the physiology and philosophy of Eastern mindfulness constitutes the basis for the arguments of the effect of mindfulness techniques. The use of mindfulness techniques for group facilitation is novel as it changes the focus from individuals’ mindfulness practice...
Ter-Kazarian, G T
1997-01-01
Suggested theory involves a drastic revision of a role of local internal symmetries in physical concept of curved geometry. Under the reflection of fields and their dynamics from Minkowski to Riemannian space a standard gauge principle of local internal symmetries is generalized. The gravitation gauge group is proposed, which is generated by hidden local internal symmetries. The developed mechanism enables one to infer Einstein's equation of gravitation, but only with strong difference from Einstein's theory at the vital point of well-defined energy-momentum tensor of gravitational field and conservation laws. The gravitational interaction as well as general distortion of manifold G(2.2.3) with hidden group U(1) was considered.
Group Leaders Optimization Algorithm
Daskin, Anmer
2010-01-01
Complexity of global optimization algorithms makes implementation of the algorithms difficult and leads the algorithms to require more computer resources for the optimization process. The ability to explore the whole solution space without increasing the complexity of algorithms has a great importance to not only get reliable results but so also make the implementation of these algorithms more convenient for higher dimensional and complex-real world problems in science and engineering. In this paper, we present a new global optimization algorithm in which the influence of the leaders in social groups is used as an inspiration for the evolutionary technique that is designed into a group architecture similar to the architecture of Cooperative Coevolutionary Algorithms. Therefore, we present the implementation method and the experimental results for the single and multidimensional optimization test problems and a scientific real world problem, the energies and the geometric structures of Lennard-Jones clusters.
Demange, Gabrielle; Wooders, Myrna
2005-01-01
Broad and diverse ranges of activities are conducted within and by organized groups of individuals, including political, economic and social activities. These activities have recently become a subject of intense interest in economics and game theory. Some of the topics investigated in this collection are models of networks of power and privilege, trade networks, co-authorship networks, buyer-seller networks with differentiated products, and networks of medical innovation and the adaptation of new information. Other topics are social norms on punctuality, clubs and the provision of club goods and public goods, research and development and collusive alliances among corporations, and international alliances and trading agreements. While relatively recent, the literature on game theoretic studies of group formation in economics is already vast. This volume provides an introduction to this important literature on game-theoretic treatments of situations with networks, clubs, and coalitions, including some applications.
The Ombudperson Initiative Group
Laura Stewart
Following many discussions that took place at some of the ATLAS Women's Network lunch gatherings, a few ATLAS women joined forces with similarly concerned CERN staff women to form a small group last Fall to discuss the need for a CERN-wide Ombudsperson. This has since evolved into the Ombudsperson Initiative Group (OIG) currently composed of the following members: Barbro Asman, Stockholm University; Pierre Charrue, CERN AB; Anna Cook, CERN IT; Catherine Delamare, CERN and IT Ombudsperson; Paula Eerola, Lund University; Pauline Gagnon, Indiana University; Eugenia Hatziangeli, CERN AB; Doreen Klem, CERN IT; Bertrand Nicquevert, CERN TS and Laura Stewart, CERN AT. On June 12, members of the OIG met with representatives of Human Resources (HR) and the Equal Opportunity Advisory Panel (EOAP) to discuss the proposal drafted by the OIG. The meeting was very positive. Everybody agreed that the current procedures at CERN applicable in the event of conflict required a thorough review, and that a professionnally trai...
Energy Technology Data Exchange (ETDEWEB)
NONE
2001-07-01
The goal of this working group was to foment discussions about the use and limitations of multi-bunch, representatives from most operating or in-project synchrotron radiation sources (ALS, SPEAR, BESSY-2, SPRING-8, ANKA, DELTA, PEP-2, DIAMOND, ESRF...) have presented their experience. The discussions have been led around 3 topics: 1) resistive wall instabilities and ion instabilities, 2) higher harmonic cavities, and 3) multibunch feedback systems.
Formal groups and applications
Hazewinkel, Michiel
2012-01-01
This book is a comprehensive treatment of the theory of formal groups and its numerous applications in several areas of mathematics. The seven chapters of the book present basics and main results of the theory, as well as very important applications in algebraic topology, number theory, and algebraic geometry. Each chapter ends with several pages of historical and bibliographic summary. One prerequisite for reading the book is an introductory graduate algebra course, including certain familiarity with category theory.
Summaries of group discussions
Jensen, L. D.
1972-01-01
Group discussions following the presentations of reports on the remote sensing of Chesapeake Bay resources are presented. The parameters to be investigated by the remote sensors and the specifications of the sensors are described. Specific sensors for obtaining data on various aspects of the ecology are identified. Recommendations for establishing a data bank and additional efforts to obtain increased understanding of the ecology are submitted.
Bond, Rod
2005-01-01
Abstract This paper reviews theory and research on the relationship between group size and conformity and presents a meta-analysis of 125 Asch-type conformity studies. It questions the assumption of a single function made in formal models of social influence and proposes instead that the function will vary depending on which social influence process predominates. It is argued that normative influence is lik...
Lyndon, Roger C
2001-01-01
From the reviews: "This book (...) defines the boundaries of the subject now called combinatorial group theory. (...)it is a considerable achievement to have concentrated a survey of the subject into 339 pages. This includes a substantial and useful bibliography; (over 1100 ÄitemsÜ). ...the book is a valuable and welcome addition to the literature, containing many results not previously available in a book. It will undoubtedly become a standard reference." Mathematical Reviews, AMS, 1979.
Group Variables and Gaming Success.
Norris, Dwight R.; Niebuhr, Robert E.
1980-01-01
Describes a study designed to determine the effects of group cohesiveness on group performance in a management game and, to examine the effects voluntary v assigned group membership has on the cohesiveness of the group. (Author/LLS)
Energy Technology Data Exchange (ETDEWEB)
Clark, R. A.; Lewis, M
1985-09-01
This report is a summary of progress in the Surry Steam Generator Group Project for 1984. Information is presented on the analysis of two baseline eddy current inspections of the generator. Round robin series of tests using standard in-service inspection techniques are described along with some preliminary results. Observations are reported of degradation found on tubing specimens removed from the generator, and on support plates characterized in-situ. Residual stresses measured on a tubing specimen are reported. Two steam generator repair demonstrations are described; one for antivibration bar replacement, and one on tube repair methods. Chemical analyses are shown for sludge samples removed from above the tube sheet.
Farmer, David W
1995-01-01
In most mathematics textbooks, the most exciting part of mathematics-the process of invention and discovery-is completely hidden from the reader. The aim of Groups and Symmetry is to change all that. By means of a series of carefully selected tasks, this book leads readers to discover some real mathematics. There are no formulas to memorize; no procedures to follow. The book is a guide: Its job is to start you in the right direction and to bring you back if you stray too far. Discovery is left to you. Suitable for a one-semester course at the beginning undergraduate level, there are no prerequ
DEFF Research Database (Denmark)
Dove, Graham; Abildgaard, Sille Julie Jøhnk; Biskjær, Michael Mose
The Post-ItTM note is a frequently used, and yet seldom studied, design material. We investigate the functions Post-ItTM notes serve when providing cognitive support for creative design team practice. Our investigation considers the ways in which Post-ItTM notes function as design externalisations......, both individually and when grouped, and their role in categorisation in semantic long-term memory. To do this, we adopt a multimodal analytical approach focusing on interaction between humans, and between humans and artefacts, alongside language. We discuss in detail examples of four different...
Social group utility maximization
Gong, Xiaowen; Yang, Lei; Zhang, Junshan
2014-01-01
This SpringerBrief explains how to leverage mobile users' social relationships to improve the interactions of mobile devices in mobile networks. It develops a social group utility maximization (SGUM) framework that captures diverse social ties of mobile users and diverse physical coupling of mobile devices. Key topics include random access control, power control, spectrum access, and location privacy.This brief also investigates SGUM-based power control game and random access control game, for which it establishes the socially-aware Nash equilibrium (SNE). It then examines the critical SGUM-b
Liao, Tim Futing
2011-01-01
An incomparably useful examination of statistical methods for comparisonThe nature of doing science, be it natural or social, inevitably calls for comparison. Statistical methods are at the heart of such comparison, for they not only help us gain understanding of the world around us but often define how our research is to be carried out. The need to compare between groups is best exemplified by experiments, which have clearly defined statistical methods. However, true experiments are not always possible. What complicates the matter more is a great deal of diversity in factors that are not inde
Energy Technology Data Exchange (ETDEWEB)
Pressley, A.; Chari, V. (King' s Coll., London (UK). Dept. of Mathematics Tata Inst. of Fundamental Research, Bombay (India). School of Mathematics)
1990-12-01
The authors presents an introduction to quantum groups defined as a deformation of the universal enveloping algebra of a Lie algebra. After the description of Hopf algebras with some examples the approach of Drinfel'd and Jimbo is described, where the quantization of a Lie algebra represents a Hopf algebra, defined over the algebra of formal power series in an indetermined h. The authors show that this approach arises from a r-matrix, which satisfies the classical Yang-Baxter equation. As example quantum sl{sub 2} is considered. Furthermore the approaches of Manin and Woroniwicz and the R-matrix approach are described. (HSI).
Applications of Quantum Groups
Chryssomalakos, Chryssomalis
The main theme of this thesis is the search for applications of Quantum Group and Hopf algebraic concepts and techniques in Physics. We investigate in particular the possibilities that exist in deforming, in a self consistent way, the symmetry structure of physical theories with the hope that the resulting scheme will be of relevance in the description of physical reality. Our choice of topics reflects this motivation: we discuss deformations of rotations and Lorentz boosts, search for integrals on the quantum plane and attempt to Fourier transform functions of non -commuting coordinates. Along the way, more formal considerations prompt us to revisit integration on finite dimensional Hopf algebras, explore the interconnections between various descriptions of the quantum double and derive the algebraic structure of the quantum plane from that of the underlying deformed symmetry group. The material is structured as follows. Chapter 1 introduces the language, basic concepts and notation employed throughout this thesis. Chapter 2 focuses on Hopf algebras viewed as universal envelopes of deformed Lie algebras and their duals. Bicovariant generators enter the discussion as analogues of the classical Lie algebra generators and some of their properties are given. We comment on the geometrical interpretation of the algebraic formulation and introduce computational tools. In chapter 3 we take a close look at the quantum Lorentz Hopf algebra. The basics of complex quantum groups are presented and applied in the derivation of the algebra of the quantum Lorentz generators and its Hopf and involutive structures. We point also to isomorphisms with previous related constructions. The subject of quantum integration is explored in chapter 4. We derive a formula for the integral on a finite dimensional Hopf algebra and show its equivalence to the formulation in terms of the trace of the square of the antipode. Integration on the quantum plane is also examined and a Fourier transform
Finite Symplectic Matrix Groups
2011-01-01
The finite subgroups of GL(m, Q) are those subgroups that fix a full lattice in Q^m together with some positive definite symmetric form. A subgroup of GL(m, Q) is called symplectic, if it fixes a nondegenerate skewsymmetric form. Such groups only exist if m is even. A symplectic subgroup of GL(2n, Q) is called maximal finite symplectic if it is not properly contained in some finite symplectic subgroup of GL(2n, Q). This thesis classifies all conjugacy classes of maximal finite symplectic subg...
Finite groups with transitive semipermutability
Institute of Scientific and Technical Information of China (English)
Lifang WANG; Yanming WANG
2008-01-01
A group G is said to be a T-group (resp. PT-group, PST-group), if normality (resp. permutability, S-permutability) is a transitive relation. In this paper, we get the characterization of finite solvable PST-groups. We also give a new characterization of finite solvable PT-groups.
TS Department
2008-01-01
In order to prepare the organization of the Open Days, please note that FM Group will not able to take into account either specific requests for waste collection from 2nd to 6th of April, either removal or PC transport requests between the 31st and the 11th of March. We kindly ask you to plan the collection of any type of waste and the urgent transport of office furniture or PC before the 31st of March. Waste collection requests shall be formulated contacting FM Support at 77777 or at the email address mailto:Fm.Support@cern.ch; removal of office furniture or PC transport requests must be made using the EDH ‘Transport request’ form selecting the "Removals" or the "PC transport" category from the drop-down menu. For any question concerning the waste sorting, please consult the following web address: http://dechets-waste.web.cern.ch/dechets-waste/. Thank you for your understanding and collaboration. TS/FM Group
Energy Technology Data Exchange (ETDEWEB)
Olivier, S
2005-10-04
The Adaptive Optics (AO) Group in I Division develops and tests a broad range of advanced wavefront control technologies. Current applications focus on: Remote sensing, High power lasers, Astronomy, and Human vision. In the area of remote sensing, the AO Group leads a collaborative effort with LLNL's Nonproliferation, Arms Control & International Security (NAI) Directorate on Enhanced Surveillance Imaging. The ability to detect and identify individual people or vehicles from long-range is an important requirement for proliferation detection and homeland security. High-resolution imaging along horizontal paths through the atmosphere is limited by turbulence, which blurs and distorts the image. For ranges over {approx}one km, visible image resolution can be reduced by over an order of magnitude. We have developed an approach based on speckle imaging that can correct the turbulence-induced blurring and provide high resolution imagery. The system records a series of short exposure images which freeze the atmospheric effects. We can then estimate the image magnitude and phase using a bispectral estimation algorithm which cancels the atmospheric effects while maintaining object information at the diffraction limit of the imaging system.
TS Department
2008-01-01
In order to prepare the organization of the Open Days, please note that FM Group will not able to take into account either specific requests for waste collection from 2nd to 6th of April, either removal or PC transport requests between the 31st and the 11th of March. We kindly ask you to plan the collection of any type of waste and the urgent transport of office furniture or PC before the 31st of March. Waste collection requests shall be formulated contacting FM Support at 77777 or at the email address mailto:Fm.Support@cern.ch; removal of office furniture or PC transport requests must be made using the EDH ‘Transport request’ form selecting the "Removals" or the "PC transport" category from the drop-down menu. For any question concerning the waste sorting, please consult the following web address: http://dechets-waste.web.cern.ch/dechets-waste/. Thank you for your understanding and collaboration. TS/FM Group
Energy Technology Data Exchange (ETDEWEB)
Ter-Kazarian, G. T. [Byurakan Astrophysical Observatory (Armenia)
1997-06-01
The suggested theory involves a drastic revision of the role of local internal symmetries in the physical concept of curved geometry. Under the reflection of fields and their dynamics from Minkowski to Riemannian space a standard gauge principle of local internal symmetries has been generalized. A gravitation gauge group is proposed, which is generated by hidden local internal symmetries. In all circumstances, it seemed to be of the greatest importance for the understanding of the physical nature of gravity. The most promising aspect in their approach so far is the fact that the energy-momentum conservation laws of gravitational interacting fields are formulated quite naturally by exploiting all the advantages of auxiliary shadow fields on flat shadow space. The mechanism developed here enables one to infer Einstein`s equation of gravitation, but only with a strong difference from Einstein`s theory at the vital point of well-defined energy-momentum tensor of gravitational field and conservation laws. The gravitational interaction as well as the general distortion of the manifold G(2.2.3) with hidden group U{sup loc} (1) has been considered.
Directory of Open Access Journals (Sweden)
Baltezarević Vesna
2009-01-01
Full Text Available Our reality, having been subject to the numerous social crises during the last decades of the 20th century, is characterized by frequent incidences of powerlessness and alienation. The man is more frequently a subject to loneliness and overcomes the feeling of worthlessness, no matter whether he considers himself an individual or a part of a whole larger social. Such an environment leads to development of aggression in all fields of ones life. This paper has as an objective the pointing out of the mental harassment that is manifested in the working environment. There is a prevalence of mobbing cases, as a mode of pathological communication. The result of this is that a person, subjected to this kind of abuse, is soon faced with social isolation. This research also aspires to initiate the need for social groups self-organization of which victims are part of. The reaction modality of a social group directly conditions the outcome of the deliberate social drama, one is subjected to it as a result of mobbing.
2013-01-01
The CERN Administration would like to remind you that staff members and fellows have the possibility to take out a life insurance contract on favourable terms through a Group Life Insurance. This insurance is provided by the company Helvetia and is available to you on a voluntary basis. The premium, which varies depending on the age and gender of the person insured, is calculated on the basis of the amount of the death benefit chosen by the staff member/fellow and can be purchased in slices of 10,000 CHF. The contract normally ends at the retirement age (65/67 years) or when the staff member/fellow leaves the Organization. The premium is deducted monthly from the payroll. Upon retirement, the staff member can opt to maintain his membership under certain conditions. More information about Group Life Insurance can be found at: Regulations (in French) Table of premiums The Pension Fund Benefit Service &...
ATLAS Detector Interface Group
Mapelli, L
Originally organised as a sub-system in the DAQ/EF-1 Prototype Project, the Detector Interface Group (DIG) was an information exchange channel between the Detector systems and the Data Acquisition to provide critical detector information for prototype design and detector integration. After the reorganisation of the Trigger/DAQ Project and of Technical Coordination, the necessity to provide an adequate context for integration of detectors with the Trigger and DAQ lead to organisation of the DIG as one of the activities of Technical Coordination. Such an organisation emphasises the ATLAS wide coordination of the Trigger and DAQ exploitation aspects, which go beyond the domain of the Trigger/DAQ project itself. As part of Technical Coordination, the DIG provides the natural environment for the common work of Trigger/DAQ and detector experts. A DIG forum for a wide discussion of all the detector and Trigger/DAQ integration issues. A more restricted DIG group for the practical organisation and implementation o...
Outer automorphism groups of certain 1-relator groups
Institute of Scientific and Technical Information of China (English)
KIM; Goansu
2010-01-01
Grossman first showed that outer automorphism groups of 1-relator groups given by orientable surface groups are residually finite,whence mapping class groups of orientable surfaces are residually finite.Allenby,Kim and Tang showed that outer automorphism groups of cyclically pinched 1-relator groups are residually finite,whence mapping class groups of orientable and non-orientable surfaces are residually finite.In this paper we show that outer automorphism groups of certain conjugacy separable 1-relator groups are residually finite.
Are balanced groups better? : Belbin roles in collaborative learning groups
Meslec, M.N.; Curseu, P.L.
2015-01-01
In a sample of 459 students organized in 84 groups this study tests the impact of group role balance on teamwork quality and three performance indicators in collaborative learning groups (group cognitive complexity, perceived performance and objective performance). The results show that group role
Emotional collectives : How groups shape emotions and emotions shape groups
van Kleef, G.A.; Fischer, A.H.
2016-01-01
Group settings are epicentres of emotional activity. Yet, the role of emotions in groups is poorly understood. How do group-level phenomena shape group members’ emotional experience and expression? How are emotional expressions recognised, interpreted and shared in group settings? And how do such ex
2013-01-01
The CERN Administration wishes to inform staff members and fellows having taken out optional life insurance under the group contract signed by CERN that the following changes to the rules and regulations entered into force on 1 January 2013: The maximum age for an active member has been extended from 65 to 67 years. The beneficiary clause now allows insured persons to designate one or more persons of their choice to be their beneficiary(-ies), either at the time of taking out the insurance or at a later date, in which case the membership/modification form must be updated accordingly. Beneficiaries must be clearly identified (name, first name, date of birth, address). The membership/modification form is available on the FP website: http://fp.web.cern.ch/helvetia-life-insurance For further information, please contact: Valentina Clavel (Tel. 73904) Peggy Pithioud (Tel. 72736)
Grouping Synonyms by Definitions
Falk, Ingrid; Jacquey, Evelyne; Venant, Fabienne
2009-01-01
We present a method for grouping the synonyms of a lemma according to its dictionary senses. The senses are defined by a large machine readable dictionary for French, the TLFi (Tr\\'esor de la langue fran\\c{c}aise informatis\\'e) and the synonyms are given by 5 synonym dictionaries (also for French). To evaluate the proposed method, we manually constructed a gold standard where for each (word, definition) pair and given the set of synonyms defined for that word by the 5 synonym dictionaries, 4 lexicographers specified the set of synonyms they judge adequate. While inter-annotator agreement ranges on that task from 67% to at best 88% depending on the annotator pair and on the synonym dictionary being considered, the automatic procedure we propose scores a precision of 67% and a recall of 71%. The proposed method is compared with related work namely, word sense disambiguation, synonym lexicon acquisition and WordNet construction.
Tomboulis, E T
2007-01-01
We point out a general problem with the procedures commonly used to obtain improved actions from MCRG decimated configurations. Straightforward measurement of the couplings from the decimated configurations, by one of the known methods, can result into actions that do not correctly reproduce the physics on the undecimated lattice. This is because the decimated configurations are generally not representative of the equilibrium configurations of the assumed form of the effective action at the measured couplings. Curing this involves fine-tuning of the chosen MCRG decimation procedure, which is also dependent on the form assumed for the effective action. We illustrate this in decimation studies of the SU(2) LGT using Swendsen and Double Smeared Blocking decimation procedures. A single-plaquette improved action involving five group representations and free of this pathology is given.
The members of the NOSS Science Working Group are John Apel, Pacific Marine Environmental Laboratories/NOAA; Tim Barnett, Scripps Institution of Oceanography; Francis Bretherton (chairman), National Center for Atmospheric Research; Otis Brown, University of Miami; Joost Businger, University of Washington; Garrett Campbell, NCAR; Mark Cane, Massachusetts Institute of Technology; Robert Edwards, National Marine Fisheries Service/NOAA; James Mueller, Naval Postgraduate School; Peter Niiler, Oregon State University; James J. O'Brien, Florida State University; Norman Phillips, National Meteorological Center/NOAA; Owen Phillips, The Johns Hopkins University; Stephen Piacsek, NSTL Station, NORDA; Trevor Platt, Bedford Institute of Oceanography; Stephen Pond, University of British Columbia; Stanley Ruttenberg (executive secretary), NCAR; William Schmitz, Woods Hole Oceanographic Institution; Jerry Schubel, State University of New York; Robert Stewart, Scripps; Norbert Untersteiner, NOAA; and Alan Weinstein, Naval Environmental Prediction Research Facility.
White, AT
1985-01-01
The field of topological graph theory has expanded greatly in the ten years since the first edition of this book appeared. The original nine chapters of this classic work have therefore been revised and updated. Six new chapters have been added, dealing with: voltage graphs, non-orientable imbeddings, block designs associated with graph imbeddings, hypergraph imbeddings, map automorphism groups and change ringing.Thirty-two new problems have been added to this new edition, so that there are now 181 in all; 22 of these have been designated as ``difficult'''' and 9 as ``unsolved''''. Three of the four unsolved problems from the first edition have been solved in the ten years between editions; they are now marked as ``difficult''''.
Gutzwiller renormalization group
Lanatà, Nicola; Yao, Yong-Xin; Deng, Xiaoyu; Wang, Cai-Zhuang; Ho, Kai-Ming; Kotliar, Gabriel
2016-01-01
We develop a variational scheme called the "Gutzwiller renormalization group" (GRG), which enables us to calculate the ground state of Anderson impurity models (AIM) with arbitrary numerical precision. Our method exploits the low-entanglement property of the ground state of local Hamiltonians in combination with the framework of the Gutzwiller wave function and indicates that the ground state of the AIM has a very simple structure, which can be represented very accurately in terms of a surprisingly small number of variational parameters. We perform benchmark calculations of the single-band AIM that validate our theory and suggest that the GRG might enable us to study complex systems beyond the reach of the other methods presently available and pave the way to interesting generalizations, e.g., to nonequilibrium transport in nanostructures.
Renormalization Group Tutorial
Bell, Thomas L.
2004-01-01
Complex physical systems sometimes have statistical behavior characterized by power- law dependence on the parameters of the system and spatial variability with no particular characteristic scale as the parameters approach critical values. The renormalization group (RG) approach was developed in the fields of statistical mechanics and quantum field theory to derive quantitative predictions of such behavior in cases where conventional methods of analysis fail. Techniques based on these ideas have since been extended to treat problems in many different fields, and in particular, the behavior of turbulent fluids. This lecture will describe a relatively simple but nontrivial example of the RG approach applied to the diffusion of photons out of a stellar medium when the photons have wavelengths near that of an emission line of atoms in the medium.
Energy Technology Data Exchange (ETDEWEB)
Artuso, M.; et al.,
2013-10-18
Sensors play a key role in detecting both charged particles and photons for all three frontiers in Particle Physics. The signals from an individual sensor that can be used include ionization deposited, phonons created, or light emitted from excitations of the material. The individual sensors are then typically arrayed for detection of individual particles or groups of particles. Mounting of new, ever higher performance experiments, often depend on advances in sensors in a range of performance characteristics. These performance metrics can include position resolution for passing particles, time resolution on particles impacting the sensor, and overall rate capabilities. In addition the feasible detector area and cost frequently provides a limit to what can be built and therefore is often another area where improvements are important. Finally, radiation tolerance is becoming a requirement in a broad array of devices. We present a status report on a broad category of sensors, including challenges for the future and work in progress to solve those challenges.
Representation Theory of Algebraic Groups and Quantum Groups
Gyoja, A; Shinoda, K-I; Shoji, T; Tanisaki, Toshiyuki
2010-01-01
Invited articles by top notch expertsFocus is on topics in representation theory of algebraic groups and quantum groupsOf interest to graduate students and researchers in representation theory, group theory, algebraic geometry, quantum theory and math physics
Ryan, C S; Bogart, L M
1997-10-01
Changes in new members' in-group and out-group stereotypes were examined, distinguishing among three stereotype components: stereotypicality, dispersion, and ethnocentrism. Pledges in 4 sororities judged their in-group and out-groups 4 times during their 8-month induction. Overall, out-groups were judged more stereotypically than in-groups at every wave. Although out-groups were initially perceived as more dispersed than in-groups, decreased out-group dispersion resulted in a shift toward out-group homogeneity. Ethnocentrism was present at every wave but decreased because of decreased in-group positivity. The authors discuss implications of these results for existing explanations of stereotype development. It is suggested that other aspects of group socialization (R.L. Moreland & J.M. Levine, 1982) are needed to explain fully the development of intergroup perceptions for new group members.
Cluster functional renormalization group
Reuther, Johannes; Thomale, Ronny
2014-01-01
Functional renormalization group (FRG) has become a diverse and powerful tool to derive effective low-energy scattering vertices of interacting many-body systems. Starting from a free expansion point of the action, the flow of the RG parameter Λ allows us to trace the evolution of the effective one- and two-particle vertices towards low energies by taking into account the vertex corrections between all parquet channels in an unbiased fashion. In this work, we generalize the expansion point at which the diagrammatic resummation procedure is initiated from a free UV limit to a cluster product state. We formulate a cluster FRG scheme where the noninteracting building blocks (i.e., decoupled spin clusters) are treated exactly, and the intercluster couplings are addressed via RG. As a benchmark study, we apply our cluster FRG scheme to the spin-1/2 bilayer Heisenberg model (BHM) on a square lattice where the neighboring sites in the two layers form the individual two-site clusters. Comparing with existing numerical evidence for the BHM, we obtain reasonable findings for the spin susceptibility, the spin-triplet excitation energy, and quasiparticle weight even in coupling regimes close to antiferromagnetic order. The concept of cluster FRG promises applications to a large class of interacting electron systems.
The analytic renormalization group
Ferrari, Frank
2016-08-01
Finite temperature Euclidean two-point functions in quantum mechanics or quantum field theory are characterized by a discrete set of Fourier coefficients Gk, k ∈ Z, associated with the Matsubara frequencies νk = 2 πk / β. We show that analyticity implies that the coefficients Gk must satisfy an infinite number of model-independent linear equations that we write down explicitly. In particular, we construct "Analytic Renormalization Group" linear maps Aμ which, for any choice of cut-off μ, allow to express the low energy Fourier coefficients for |νk | < μ (with the possible exception of the zero mode G0), together with the real-time correlators and spectral functions, in terms of the high energy Fourier coefficients for |νk | ≥ μ. Operating a simple numerical algorithm, we show that the exact universal linear constraints on Gk can be used to systematically improve any random approximate data set obtained, for example, from Monte-Carlo simulations. Our results are illustrated on several explicit examples.
Group Milieu in systemic and psychodynamic group therapy
DEFF Research Database (Denmark)
Lau, Marianne Engelbrecht
in a randomized study of systemic versus psychodynamic group therapy, that the short-term outcome for patients who received systemic group psychotherapy was significantly better than the outcome for patients who received psychodynamic group psychotherapy. The current study assessed the group milieu in both groups....... Methods: This randomized prospective study included 106 women: 52 assigned to psychodynamic group psychotherapy and 54 assigned to systemic group psychotherapy. The Group Environment Scale (GES) was filled in the mid phase of therapy and analysed in three dimensions and 10 subscales. Results: The systemic...... group was characterized by statistically significant highest scores on Relationship (ES = 1.27) and System Maintenance / Change Dimension (ES= 1.28), while the scores for Personal Growth Dimension were comparable in the two groups. Group S had statistically significant higher scores on the following...
Introduction to complex reflection groups and their braid groups
Broué, Michel
2010-01-01
Weyl groups are particular cases of complex reflection groups, i.e. finite subgroups of GLr(C) generated by (pseudo)reflections. These are groups whose polynomial ring of invariants is a polynomial algebra. It has recently been discovered that complex reflection groups play a key role in the theory of finite reductive groups, giving rise as they do to braid groups and generalized Hecke algebras which govern the representation theory of finite reductive groups. It is now also broadly agreed upon that many of the known properties of Weyl groups can be generalized to complex reflection groups. The purpose of this work is to present a fairly extensive treatment of many basic properties of complex reflection groups (characterization, Steinberg theorem, Gutkin-Opdam matrices, Solomon theorem and applications, etc.) including the basic findings of Springer theory on eigenspaces. In doing so, we also introduce basic definitions and properties of the associated braid groups, as well as a quick introduction to Bessis' ...
The Automorphism Groups of the Groups of Order 32p
Becker, Elaine W
2009-01-01
The results of computer computations determining the automorphism groups of the groups of order 32$p$ for $p \\geq 3$ are given in several tables. Presentations for the automorphism groups of the groups of order 32, which in many cases appear as direct product factors in the automorphism groups of order $32p$, are also presented for completeness. Many of the groups of order 32$p$ with a normal sylow $p$-subgroup have automorphism groups of the form: Hol($C_p$)$ \\times $Invariant Factor. A suggestion is made as to how one might determine this invariant factor using only information on the automorphism group of the 2-group associated with the group of order 32$p$, and the normal subgroup of the 2-group associated with the extension of the group of order $32p$. Some general comments on the groups of order $32p^2$ and their automorphism groups are made. A few explicit calculations for the groups of order $32p^2$ are reported here. Knowing the automorphism groups for the groups of order $32p$ enables us to explicit...
Fermilab Steering Group Report
Energy Technology Data Exchange (ETDEWEB)
Steering Group, Fermilab; /Fermilab
2007-12-01
The Fermilab Steering Group has developed a plan to keep U.S. accelerator-based particle physics on the pathway to discovery, both at the Terascale with the LHC and the ILC and in the domain of neutrinos and precision physics with a high-intensity accelerator. The plan puts discovering Terascale physics with the LHC and the ILC as Fermilab's highest priority. While supporting ILC development, the plan creates opportunities for exciting science at the intensity frontier. If the ILC remains near the Global Design Effort's technically driven timeline, Fermilab would continue neutrino science with the NOvA experiment, using the NuMI (Neutrinos at the Main Injector) proton plan, scheduled to begin operating in 2011. If ILC construction must wait somewhat longer, Fermilab's plan proposes SNuMI, an upgrade of NuMI to create a more powerful neutrino beam. If the ILC start is postponed significantly, a central feature of the proposed Fermilab plan calls for building an intense proton facility, Project X, consisting of a linear accelerator with the currently planned characteristics of the ILC combined with Fermilab's existing Recycler Ring and the Main Injector accelerator. The major component of Project X is the linac. Cryomodules, radio-frequency distribution, cryogenics and instrumentation for the linac are the same as or similar to those used in the ILC at a scale of about one percent of a full ILC linac. Project X's intense proton beams would open a path to discovery in neutrino science and in precision physics with charged leptons and quarks. World-leading experiments would allow physicists to address key questions of the Quantum Universe: How did the universe come to be? Are there undiscovered principles of nature: new symmetries, new physical laws? Do all the particles and forces become one? What happened to the antimatter? Building Project X's ILC-like linac would offer substantial support for ILC development by accelerating the
Fermilab Steering Group Report
Energy Technology Data Exchange (ETDEWEB)
Beier, Eugene; /Pennsylvania U.; Butler, Joel; /Fermilab; Dawson, Sally; /Brookhaven; Edwards, Helen; /Fermilab; Himel, Thomas; /SLAC; Holmes, Stephen; /Fermilab; Kim, Young-Kee; /Fermilab /Chicago U.; Lankford, Andrew; /UC, Irvine; McGinnis, David; /Fermilab; Nagaitsev, Sergei; /Fermilab; Raubenheimer, Tor; /SLAC /Fermilab
2007-01-01
The Fermilab Steering Group has developed a plan to keep U.S. accelerator-based particle physics on the pathway to discovery, both at the Terascale with the LHC and the ILC and in the domain of neutrinos and precision physics with a high-intensity accelerator. The plan puts discovering Terascale physics with the LHC and the ILC as Fermilab's highest priority. While supporting ILC development, the plan creates opportunities for exciting science at the intensity frontier. If the ILC remains near the Global Design Effort's technically driven timeline, Fermilab would continue neutrino science with the NOVA experiment, using the NuMI (Neutrinos at the Main Injector) proton plan, scheduled to begin operating in 2011. If ILC construction must wait somewhat longer, Fermilab's plan proposes SNuMI, an upgrade of NuMI to create a more powerful neutrino beam. If the ILC start is postponed significantly, a central feature of the proposed Fermilab plan calls for building an intense proton facility, Project X, consisting of a linear accelerator with the currently planned characteristics of the ILC combined with Fermilab's existing Recycler Ring and the Main Injector accelerator. The major component of Project X is the linac. Cryomodules, radio-frequency distribution, cryogenics and instrumentation for the linac are the same as or similar to those used in the ILC at a scale of about one percent of a full ILC linac. Project X's intense proton beams would open a path to discovery in neutrino science and in precision physics with charged leptons and quarks. World-leading experiments would allow physicists to address key questions of the Quantum Universe: How did the universe come to be? Are there undiscovered principles of nature: new symmetries, new physical laws? Do all the particles and forces become one? What happened to the antimatter? Building Project X's ILC-like linac would offer substantial support for ILC development by accelerating the
Group B Streptococcus and Pregnancy
... B Strep and Pregnancy • What is group B streptococcus (GBS)? • What does it mean to be colonized ... planned cesarean birth? •Glossary What is group B streptococcus (GBS)? Group B streptococcus is one of the ...
Harmonic Analysis and Group Representation
Figa-Talamanca, Alessandro
2011-01-01
This title includes: Lectures - A. Auslander, R. Tolimeri - Nilpotent groups and abelian varieties, M Cowling - Unitary and uniformly bounded representations of some simple Lie groups, M. Duflo - Construction de representations unitaires d'un groupe de Lie, R. Howe - On a notion of rank for unitary representations of the classical groups, V.S. Varadarajan - Eigenfunction expansions of semisimple Lie groups, and R. Zimmer - Ergodic theory, group representations and rigidity; and, Seminars - A. Koranyi - Some applications of Gelfand pairs in classical analysis.
Post-Disaster Social Justice Group Work and Group Supervision
Bemak, Fred; Chung, Rita Chi-Ying
2011-01-01
This article discusses post-disaster group counseling and group supervision using a social justice orientation for working with post-disaster survivors from underserved populations. The Disaster Cross-Cultural Counseling model is a culturally responsive group counseling model that infuses social justice into post-disaster group counseling and…
Group Leader Development: Effects of Personal Growth and Psychoeducational Groups
Ohrt, Jonathan H.; Robinson, E. H., III; Hagedorn, W. Bryce
2013-01-01
The purpose of this quasi-experimental study was to compare the effects of personal growth groups and psychoeducational groups on counselor education students' (n = 74) empathy and group leader self-efficacy. Additionally, we compared the degree to which participants in each group valued: (a) cohesion, (b) catharsis, and (c) insight. There were no…
A Comparison of Workplace Groups with Groups in Education.
Jacobs, George M.; James, Joyce E.
The use of groups in both the workplace and schools has been increasing. In the workplace, groups reflective of a growing trend toward worker participation in management have been variously referred to as self-managing work teams, self-directed work groups, quality circles, autonomous work groups, and cross-functional teams. Schools have used many…
On the Central Automorphism Groups of Finite p-Groups
Institute of Scientific and Technical Information of China (English)
Ali-Reza Jamali; Hamid Mousavi
2002-01-01
Using the concept of isoclinism, we study closely the center of the group Autc(G) of central automorphisms for a certain class of finite p-groups G.We also give some necessary and sufficient conditions on a finite purely non-abelian p-group G of class 2 (p odd) for the group Autc(G) to be elementary abelian.
Interagency Advanced Power Group -- Steering group meeting minutes
Energy Technology Data Exchange (ETDEWEB)
1993-11-18
This document contains the draft meeting minutes of the Steering Group of the Interagency Advanced Power Group. Included are the discussions resulting from the presentation of working group reports and the results of a discussion of IAPG policies and procedures. In the appendix are the reports of the following working groups: Electrical, Mechanical, Solar, and Systems.
Abstract Lie groups and locally compact topological groups
Directory of Open Access Journals (Sweden)
Jacek Lech
2004-05-01
Full Text Available We introduce a notion of abstract Lie group by means of the mapping which plays the role of the evolution operator. We show some basic properties of such groups very similar to the fundamentals of the infinite dimensional Lie theory. Next we give remarkable examples of abstract Lie groups which are not necessarily usual Lie groups. In particular, by making use of Yamabe theorem we prove that any locally compact topological group admits the structure of abstract Lie group and that the Lie algebra and the exponential mapping of it coincide with those determined by the Lie group structure.
Emotional collectives: How groups shape emotions and emotions shape groups.
van Kleef, Gerben A; Fischer, Agneta H
2016-01-01
Group settings are epicentres of emotional activity. Yet, the role of emotions in groups is poorly understood. How do group-level phenomena shape group members' emotional experience and expression? How are emotional expressions recognised, interpreted and shared in group settings? And how do such expressions influence the emotions, cognitions and behaviours of fellow group members and outside observers? To answer these and other questions, we draw on relevant theoretical perspectives (e.g., intergroup emotions theory, social appraisal theory and emotions as social information theory) and recent empirical findings regarding the role of emotions in groups. We organise our review according to two overarching themes: how groups shape emotions and how emotions shape groups. We show how novel empirical approaches break important new ground in uncovering the role of emotions in groups. Research on emotional collectives is thriving and constitutes a key to understanding the social nature of emotions.
ON COLEMAN OUTER AUTOMORPHISM GROUPS OF FINITE GROUPS
Institute of Scientific and Technical Information of China (English)
海进科; 李正兴
2014-01-01
Let G be a finite group and OutCol(G) the Coleman outer automorphism group of G(for the definition, see below). The question whether OutCol(G) is a p′-group naturally arises from the study of the normalizer problem for integral group rings, where p is a prime. In this article, some sufficient conditions for OutCol(G) to be a p′-group are obtained. Our results generalize some well-known theorems.
Energy Technology Data Exchange (ETDEWEB)
Chen, Mu-Chun, E-mail: muchunc@uci.edu [Department of Physics and Astronomy, University of California, Irvine, CA 92697-4575 (United States); Fallbacher, Maximilian, E-mail: m.fallbacher@tum.de [Physik–Department T30, Technische Universität München, James–Franck–Straße 1, 85748 Garching (Germany); Ratz, Michael, E-mail: michael.ratz@tum.de [Physik–Department T30, Technische Universität München, James–Franck–Straße 1, 85748 Garching (Germany); Trautner, Andreas, E-mail: andreas.trautner@tum.de [Physik–Department T30, Technische Universität München, James–Franck–Straße 1, 85748 Garching (Germany); Excellence Cluster Universe, Boltzmannstraße 2, 85748 Garching (Germany); Vaudrevange, Patrick K.S., E-mail: patrick.vaudrevange@tum.de [Excellence Cluster Universe, Boltzmannstraße 2, 85748 Garching (Germany); TUM Institute for Advanced Study, Lichtenbergstraße 2a, 85748 Garching (Germany); Arnold Sommerfeld Center for Theoretical Physics, Ludwig–Maximilians–Universität München, Theresienstraße 37, 80333 München (Germany)
2015-07-30
We show that there is a class of finite groups, the so-called perfect groups, which cannot exhibit anomalies. This implies that all non-Abelian finite simple groups are anomaly-free. On the other hand, non-perfect groups generically suffer from anomalies. We present two different ways that allow one to understand these statements.
Directory of Open Access Journals (Sweden)
Mu-Chun Chen
2015-07-01
Full Text Available We show that there is a class of finite groups, the so-called perfect groups, which cannot exhibit anomalies. This implies that all non-Abelian finite simple groups are anomaly-free. On the other hand, non-perfect groups generically suffer from anomalies. We present two different ways that allow one to understand these statements.
2010 Chemical Working Group Status
Reid, Concha M.
2010-01-01
The Steering Group for the Interagency Advanced Power Group (IAPG) held their business meeting on November 30-December 1st in McLean, Virginia. Status reports were presented from each of the IAPG's Working Groups. These charts contain a brief summary of the IAPG Chemical Working Group's activities during 2010 and its plans for 2011.
About Hebei Jianxin Construction Group
Institute of Scientific and Technical Information of China (English)
无
2007-01-01
@@ Hebei Jianxin Construction (Group) Ltd. was incorporated in August 1984. As the holding company, Hebei Jianxin Construction (Group)Ltd. along with five companies under its holding, such as Baoding New Generation Real Estate Development Co., Ltd. and Baoding New Generation Property Management Co., Ltd., formed Hebei Jianxin Architectural Group (hereafter, the Group).
Short Conjugators in Solvable Groups
Sale, Andrew W
2011-01-01
We give an upper bound on the size of short conjugators in certain solvable groups. Diestel-Leader graphs, which are a horocyclic product of trees, are discussed briefly and used to study the lamplighter groups. The other solvable groups we look at can be recognised in a similar vein, as groups which act on a horocyclic product of well known spaces. These include the Baumslag-Solitar groups BS(1,q) and semidirect products of Z^n with Z^k. Results can also be applied to the conjugacy of parabolic elements in Hilbert modular groups and to elements in 3-manifold groups.
Maximal subgroups of finite groups
Directory of Open Access Journals (Sweden)
S. Srinivasan
1990-01-01
Full Text Available In finite groups maximal subgroups play a very important role. Results in the literature show that if the maximal subgroup has a very small index in the whole group then it influences the structure of the group itself. In this paper we study the case when the index of the maximal subgroups of the groups have a special type of relation with the Fitting subgroup of the group.
Interrelation of group, micro-group and interpersonal identities of employees in production groups
Directory of Open Access Journals (Sweden)
Sidorenkov A.V.
2016-12-01
Full Text Available The article represents the results of mathematical and statistical analysis of the links between the levels of the identity of employees (group, micro-group and interpersonal by three components (cognitive, affective and behavioral in 37 industrial groups with expertise in different fields. The significant linear relationship between micro-group and interpersonal identity (for all components, high linear relationship between group identity and micro-group identity (only for affective component and the lack of linear relationship between the components of inter- personal and group identity are revealed. Higher influence of group identity on micro-group (for all components and interpersonal identity (for cognitive and behavioral components is found out in the totality of intercorrelation between group, micro-group and interpersonal identities. Non-linear relationship between group and micro-group identity for all components is revealed. This non-linear relation indicates that increase in expressiveness of one of the components of group iden- tity leads to decrease in expressiveness of the respective component of micro-group identity. This effect occurs until definite moment, after which, on the contrary, further reinforcement of the components of group identity leads to the increase in expressiveness of micro-group identity. These established consistent patterns are interpreted in the article.
Does group efficacy increase group identification? Resolving their paradoxical relationship
van Zomeren, Martijn; Leach, Colin Wayne; Spears, Russell
2010-01-01
Although group identification and group efficacy are both important predictors of collective action against collective disadvantage, there is mixed evidence for their (causal) relationship. Meta-analytic and correlational evidence suggests an overall positive relationship that has been interpreted a
Groups possessing extensive hierarchical decompositions
Januszkiewicz, T; Leary, I J
2009-01-01
Kropholler's class of groups is the smallest class of groups which contains all finite groups and is closed under the following operator: whenever $G$ admits a finite-dimensional contractible $G$-CW-complex in which all stabilizer groups are in the class, then $G$ is itself in the class. Kropholler's class admits a hierarchical structure, i.e., a natural filtration indexed by the ordinals. For example, stage 0 of the hierarchy is the class of all finite groups, and stage 1 contains all groups of finite virtual cohomological dimension. We show that for each countable ordinal $\\alpha$, there is a countable group that is in Kropholler's class which does not appear until the $\\alpha+1$st stage of the hierarchy. Previously this was known only for $\\alpha= 0$, 1 and 2. The groups that we construct contain torsion. We also review the construction of a torsion-free group that lies in the third stage of the hierarchy.
Secure Group Communications for Large Dynamic Multicast Group
Institute of Scientific and Technical Information of China (English)
Liu Jing; Zhou Mingtian
2003-01-01
As the major problem in multicast security, the group key management has been the focus of research But few results are satisfactory. In this paper, the problems of group key management and access control for large dynamic multicast group have been researched and a solution based on SubGroup Secure Controllers (SGSCs) is presented, which solves many problems in IOLUS system and WGL scheme.
Growth of Automorphism Groups of Relatively Free Groups
Institute of Scientific and Technical Information of China (English)
V. Drensky; A.I. Papistas
2001-01-01
We introduce a new growth function for automorphism groups of residually nilpotent relatively free groups Fn(V) and study its behavior. We prove that, under some natural restrictions, the growth of the group of tame automorphisms of Fn(V) is equal to the growth of the automorphism group of Fn(V), and coincides with the growth of the Lie algebra over Q associated with Fn (V). Applications of our techniques are given.
Intensifying the Group Member's Experience Using the Group Log.
Valine, Warren J.
1983-01-01
Presents the use of a group log in which members analyze the content and process of each session using a suggested format. The log promotes dialogue between the leader and each group member and involves members more fully in the group process. Feedback indicates the log is valuable. (JAC)
Re-Examining Group Development in Adventure Therapy Groups.
DeGraaf, Don; Ashby, Jeff
1998-01-01
Small-group development is an important aspect of adventure therapy. Supplementing knowledge of sequential stages of group development with knowledge concerning within-stage nonsequential development yields a richer understanding of groups. Integrating elements of the individual counseling relationship (working alliance, transference, and real…
How Much "Group" Is There in Online Group Work?
Lowes, Susan
2014-01-01
The ability to work in groups across time and space has become a frequent requirement for the workplace and is increasingly common in higher education, but there is a surprising lack of research on how online groups work. This research applies analytic approaches used in studies of face-to-face classroom "talk" to multiple groups in two…
The influence of ethnic group composition on focus group discussions
National Research Council Canada - National Science Library
Greenwood, Nan; Ellmers, Theresa; Holley, Jess
2014-01-01
... of importance to them in their own words [2]. They are particularly useful for gaining insight from minority ethnic groups [1, 3] because of their sensitivity to cultural variables [2, 4]. One of the main differences between focus groups and one-to-one interviews is the interaction between participants. Focus group participants can...
An Exploration of Group and Member Development in Experiential Groups
Ohrt, Jonathan H.; Prochenko, Yulia; Stulmaker, Hayley; Huffman, David; Fernando, Delini; Swan, Karrie
2014-01-01
In this phenomenological study, we explored 52 group members' development in experiential groups. Specifically, participants completed 10 weekly journal reflections about their experiences as members and also reflected on the group's overall development. Four overall themes--exploration, transition, working, closure--as well as multiple subthemes…
Saving Face and Group Identity
DEFF Research Database (Denmark)
Eriksson, Tor; Mao, Lei; Villeval, Marie-Claire
2015-01-01
their self- but also other group members' image. This behavior is frequent even in the absence of group identity. When group identity is more salient, individuals help regardless of whether the least performer is an in-group or an out-group. This suggests that saving others' face is a strong social norm.......Are people willing to sacrifice resources to save one's and others' face? In a laboratory experiment, we study whether individuals forego resources to avoid the public exposure of the least performer in their group. We show that a majority of individuals are willing to pay to preserve not only...
Group analysis of differential equations
Ovsiannikov, L V
1982-01-01
Group Analysis of Differential Equations provides a systematic exposition of the theory of Lie groups and Lie algebras and its application to creating algorithms for solving the problems of the group analysis of differential equations.This text is organized into eight chapters. Chapters I to III describe the one-parameter group with its tangential field of vectors. The nonstandard treatment of the Banach Lie groups is reviewed in Chapter IV, including a discussion of the complete theory of Lie group transformations. Chapters V and VI cover the construction of partial solution classes for the g
Quantization on nilpotent Lie groups
Fischer, Veronique
2016-01-01
This book presents a consistent development of the Kohn-Nirenberg type global quantization theory in the setting of graded nilpotent Lie groups in terms of their representations. It contains a detailed exposition of related background topics on homogeneous Lie groups, nilpotent Lie groups, and the analysis of Rockland operators on graded Lie groups together with their associated Sobolev spaces. For the specific example of the Heisenberg group the theory is illustrated in detail. In addition, the book features a brief account of the corresponding quantization theory in the setting of compact Lie groups. The monograph is the winner of the 2014 Ferran Sunyer i Balaguer Prize.
Group Lasso with Overlaps: the Latent Group Lasso approach
Obozinski, Guillaume; Vert, Jean-Philippe
2011-01-01
We study a norm for structured sparsity which leads to sparse linear predictors whose supports are unions of prede ned overlapping groups of variables. We call the obtained formulation latent group Lasso, since it is based on applying the usual group Lasso penalty on a set of latent variables. A detailed analysis of the norm and its properties is presented and we characterize conditions under which the set of groups associated with latent variables are correctly identi ed. We motivate and discuss the delicate choice of weights associated to each group, and illustrate this approach on simulated data and on the problem of breast cancer prognosis from gene expression data.
Riemannian means on special euclidean group and unipotent matrices group.
Duan, Xiaomin; Sun, Huafei; Peng, Linyu
2013-01-01
Among the noncompact matrix Lie groups, the special Euclidean group and the unipotent matrix group play important roles in both theoretic and applied studies. The Riemannian means of a finite set of the given points on the two matrix groups are investigated, respectively. Based on the left invariant metric on the matrix Lie groups, the geodesic between any two points is gotten. And the sum of the geodesic distances is taken as the cost function, whose minimizer is the Riemannian mean. Moreover, a Riemannian gradient algorithm for computing the Riemannian mean on the special Euclidean group and an iterative formula for that on the unipotent matrix group are proposed, respectively. Finally, several numerical simulations in the 3-dimensional case are given to illustrate our results.
Group performance and decision making.
Kerr, Norbert L; Tindale, R Scott
2004-01-01
Theory and research on small group performance and decision making is reviewed. Recent trends in group performance research have found that process gains as well as losses are possible, and both are frequently explained by situational and procedural contexts that differentially affect motivation and resource coordination. Research has continued on classic topics (e.g., brainstorming, group goal setting, stress, and group performance) and relatively new areas (e.g., collective induction). Group decision making research has focused on preference combination for continuous response distributions and group information processing. New approaches (e.g., group-level signal detection) and traditional topics (e.g., groupthink) are discussed. New directions, such as nonlinear dynamic systems, evolutionary adaptation, and technological advances, should keep small group research vigorous well into the future.
Group discussion improves lie detection
National Research Council Canada - National Science Library
Nadav Klein; Nicholas Epley
2015-01-01
... identify when a person is lying. These experiments demonstrate that the group advantage in lie detection comes through the process of group discussion, and is not a product of aggregating individual opinions...
Neutral Hydrogen in Galaxy Groups
McKay, N P F; Brough, S; Forbes, D A; Barnes, D G
2002-01-01
We present preliminary results from a study of the neutral hydrogen (HI) properties of an X-ray selected sample of nearby loose galaxy groups. This forms part of a multi-wavelength investigation (X-ray, optical and radio) of the formation and evolution of galaxies within a group environment. Some initial findings of an ATNF Parkes Multibeam wide-area neutral hydrogen imaging survey of 17 nearby galaxy groups include two new, potentially isolated clouds of HI in the NGC 1052 and NGC 5044 groups and significant amounts of HI within the group virial radii of groups NGC 3557 and IC 1459 - two groups with complex X-ray structures that suggest they may still be in the act of virialisation. Here we present ATCA high-resolution synthesis-imaging follow-up observations of the distribution and kinematics of HI in these four groups.
Differential calculi on finite groups
Castellani, L
1999-01-01
A brief review of bicovariant differential calculi on finite groups is given, with some new developments on diffeomorphisms and integration. We illustrate the general theory with the example of the nonabelian finite group S_3.
On -supersolvability of finite groups
Indian Academy of Sciences (India)
Izabela Agata Malinowska
2015-05-01
A number of authors have studied the structure of a group under the assumption that some subgroups of are well located in . We will obtain some new criteria of -supersolvability and -nilpotency of groups.
PRICE DISCRIMINATION THROUGH GROUP BUYING
2016-01-01
This paper argues that when consumers are heterogeneous in group-buying costs, a monopolist seller may practice price discrimination through inducing certain consumers to participate in group buying. In contrast to the standard model, the optimal quantity/quality level for low valuation consumers without group buying is further distorted downward, whereas the levels for other consumers are socially optimal. Inducing group buying is more favorable when the proportion of high valuation consumer...
Lie groups and automorphic forms
Ji, Lizhen; Xu, H W; Yau, Shing-Tung
2006-01-01
Lie groups are fundamental objects in mathematics. They occur naturally in differential geometry, algebraic geometry, representation theory, number theory, and other areas. Closely related are arithmetic subgroups, locally symmetric spaces and the spectral theory of automorphic forms. This book consists of five chapters which give comprehensive introductions to Lie groups, Lie algebras, arithmetic groups and reduction theories, cohomology of arithmetic groups, and the Petersson and Kuznetsov trace formulas.
On The Harmonic Oscillator Group
Lopez, Raquel M; Vega-Guzman, Jose M
2011-01-01
We discuss the maximum kinematical invariance group of the quantum harmonic oscillator from a view point of the Ermakov-type system. The invariance group of generalized driven harmonic oscillator is shown to be isomorphic to the corresponding Schroedinger group of the free particle.
Designing for informed group formation
DEFF Research Database (Denmark)
Nicolajsen, Hanne Westh; Juel Jacobsen, Alice; Riis, Marianne
2012-01-01
A new design ―project preparation‖ preparing for the group formation in problem based project work is proposed and investigated. The main problem is to overcome group formation based on existing relations. The hypothesis is that theme development and group formation are somewhat counterproductive...
Institute of Scientific and Technical Information of China (English)
HaoYanyan; YuZhihao
2004-01-01
With the rapid enrollment expansion in the recent years,the author feels it urgent to reform the traditional group work,and therefore to form a new and more effective pattern of group learning. The new of group word is based on the principles of cooperation and that of the task with the more flexible marking system.
Group Cooperation in Outdoor Education
Matthews, Bruce E.
1978-01-01
Utilizing the Beatles' Yellow Submarine fantasy (e.g., the Blue Meanies), this outdoor education program is designed for sixth graders and special education students. Activities developed at the Cortland Resident Outdoor Education Camp include a series of group stress/challenge activities to be accomplished by everyone in the group, as a group.…
Group Assessment and Structured Learning.
Lambert, Warren; And Others
1980-01-01
Two new techniques that were used with a group of seven blind, multiply handicapped young adults in a half-way house are described. Structured learning therapy is a social skills training technique and group assessment is a method of averaging psychological data on a group of clients to facilitate program planning based on client needs.…
Internal communication in corporate groups
Grzesik, Katarzyna
2015-01-01
This chapter is dedicated to internal communication in corporate groups. It discusses internal communication systems operating in the explored corporate groups and their significance for effective human resources management in those organisations. The chapter presents both the theoretical analysis based on the results of literature studies, and empirical research carried out in the explored groups. Narodowe Centrum Nauki Katarzyna Grzesik
Gestation group housing of sows
Spoolder, H.A.M.; Vermeer, H.M.
2015-01-01
Group housing of gestating sows is currently replacing individual housing systems around the world. Modern group housing systems allow performance in groups to be equal to that in individual housing systems. A crucial element in the success of a housing system is the way in which it deals with
Strategies for Successful Group Work
Nipp, Mary Beth; Palenque, Stephanie Maher
The thought of group work, or CLC Groups often strikes fear and loathing in the hearts and minds of both students and instructors. According to Swan, Shen, and Hiltz (2006) collaborative work presents the possibilities of many difficulties including a largely unequal contribution of group participants, an inability of the students to manage the…
Empowering Groups that Enable Play
Wilson, David Sloan; Marshall, Danielle; Iserhott, Hindi
2011-01-01
Creating play environments for children usually requires groups of adults working together. An extensive scientific literature describes how groups function to achieve shared goals in general terms, and groups attempting to empower play may find this literature useful. Design principles for managing natural resources, identified by Elinor Ostrom…
African Journals Online (AJOL)
Results: The Suri have an old tradition of practicing child spacing. The reasons for .... to closely spaced births as in Bangladesh (11), and the constant threat of violence and ... increasing population and labor migration to urban areas, that often ...
Locally minimal topological groups 1
Chasco, María Jesús; Dikranjan, Dikran N.; Außenhofer, Lydia; Domínguez, Xabier
2015-01-01
The aim of this paper is to go deeper into the study of local minimality and its connection to some naturally related properties. A Hausdorff topological group ▫$(G,tau)$▫ is called locally minimal if there exists a neighborhood ▫$U$▫ of 0 in ▫$tau$▫ such that ▫$U$▫ fails to be a neighborhood of zero in any Hausdorff group topology on ▫$G$▫ which is strictly coarser than ▫$tau$▫. Examples of locally minimal groups are all subgroups of Banach-Lie groups, all locally compact groups and all mini...
Defining and Classifying Interest Groups
DEFF Research Database (Denmark)
Baroni, Laura; Carroll, Brendan; Chalmers, Adam;
2014-01-01
The interest group concept is defined in many different ways in the existing literature and a range of different classification schemes are employed. This complicates comparisons between different studies and their findings. One of the important tasks faced by interest group scholars engaged...... in large-N studies is therefore to define the concept of an interest group and to determine which classification scheme to use for different group types. After reviewing the existing literature, this article sets out to compare different approaches to defining and classifying interest groups with a sample...
Stereotypes of Norwegian social groups.
Bye, Hege H; Herrebrøden, Henrik; Hjetland, Gunnhild J; Røyset, Guro Ø; Westby, Linda L
2014-10-01
We present a pilot study and two main studies that address the nature of stereotypes of social groups in Norway within the framework of the Stereotype Content Model (SCM). The first study focused on stereotypes of a wide range of groups across categories such as gender, age, religious conviction, socioeconomic and health status. The second study focused on stereotypes of immigrant groups. Participants (n = 244 and n = 63, respectively) rated the groups on perceived warmth, competence, status, and competition. Results from both studies support the applicability of the SCM in Norway and provides a unique insight into stereotypes of Norwegian social groups.
Mkrtchyan, H G
2003-01-01
Little groups for preon branes (i.e. configurations of branes with maximal (n-1)/n fraction of survived supersymmetry) for dimensions d=2,3,...,11 are calculated for all massless, and partially for massive orbits. For massless orbits little groups are semidirect product of d-2 translational group $T_{d-2}$ on a subgroup of (SO(d-2) $\\times$ R-invariance) group. E.g. at d=9 the subgroup is exceptional $G_2$ group. It is also argued, that 11d Majorana spinor invariants, which distinguish orbits, are actually invariant under d=2+10 Lorentz group. Possible applications of these results include construction of field theories in generalized space-times with brane charges coordinates, different problems of group's representations decompositions, spin-statistics issues.
MKRTCHYAN, H.; MKRTCHYAN, R.
Little groups for preon branes (i.e. configurations of branes with maximal (n-1)/n fraction of survived supersymmetry) for dimensions d=2,3,…,11 are calculated for all massless, and partially for massive orbits. For massless orbits little groups are semidirect product of d-2 translational group Td-2 on a subgroup of (SO(d-2) × R-invariance) group. E.g. at d=9 the subgroup is exceptional G2 group. It is also argued, that 11D Majorana spinor invariants, which distinguish orbits, are actually invariant under d=2+10 Lorentz group. Possible applications of these results include construction of field theories in generalized spacetimes with brane charges coordinates, different problems of group's representations decompositions, spin-statistics issues.
The "group" in obstetric psychoprophylaxis.
Volpe, B; Tenaglia, F; Fede, T; Cerutti, R
1983-01-01
In the practice of obstetric psychoprophylaxis every method employed considered always the group both from a psychological and a pedagogic point of view. Today the group of pregnant women (or couples) is considered under various aspects: - psychological: the group as a support for members with regard to maternal and parental emotional feelings; - anthropological: the group fills up an empty vital space and becomes a "rite de passage" from a state of social identity to another one; - social: the group is a significative cultural intermediary between health services and the women-patient. The knowledge of these aspects becomes an important methodological support for group conductors. We present an analysis of our experience with groups and how this has affected the Psychoprophylaxis in the last years.
Verkuyten, Maykel J. A. M.
2005-01-01
Following social identity theory, the author hypothesized that members of minority groups are more likely than majority group members to endorse multiculturalism more strongly and assimilationist thinking less strongly. In addition, the multiculturalism hypothesis proposes that the more minority gro
Verkuyten, Maykel
2005-01-01
Following social identity theory, the author hypothesized that members of minority groups are more likely than majority group members to endorse multiculturalism more strongly and assimilationist thinking less strongly. In addition, the multiculturalism hypothesis proposes that the more minority groups endorse the ideology of multiculturalism (or assimilationism), the more (or less) likely they will be to identify with their ethnic in-group and to show positive in-group evaluation. In contrast, the more majority group members endorse multiculturalism (or assimilationism), the less (or more) likely they are to identify with their ethnic group and to show negative out-group evaluation. Results from 4 studies (correlational and experimental) provide support for this hypothesis among Dutch and Turkish participants living in the Netherlands.
Terrorist Group Brands: Understanding Terrorist Group Strategies Through Brand Exposure
2016-06-01
in the same 24-hour period, thereby making brand exposure a percentage of the global news market-share. The percentage is important because the... BRANDS : UNDERSTANDING TERRORIST GROUP STRATEGIES THROUGH BRAND EXPOSURE by Bradley S. Greaver June 2016 Thesis Advisor: Camber Warren...REPORT TYPE AND DATES COVERED Master’s thesis 4. TITLE AND SUBTITLE TERRORIST GROUP BRANDS : UNDERSTANDING TERRORIST GROUP STRATEGIES THROUGH BRAND
Finite Groups with Its Power Automorphism Groups Having Small Indices
Institute of Scientific and Technical Information of China (English)
Jun Xin WANG; Xiu Yun GUO
2009-01-01
In this paper,a finite group G with|Aut(G) : P(G)| = p or pq is determined,where P(G)is the power automorphism group of G,and p,q are distinct primes.Especially,we prove that a finite group G satisfies |Aut(G) : P(G)| = pq if and only if Aut(G)/P(G) (≈)S3.Also,some other classes of finite groups are investigated and classified,which are necessary for the proof of our main results.
In-Group Versus Out-Group Source Memory.
Greenstein, Michael; Franklin, Nancy; Klug, Jessica
2016-06-01
A common finding in the source monitoring literature is that greater similarity impairs source discriminability. Experiments traditionally manipulate similarity overtly by describing or showing sources with explicitly differentiable features. However, people may also infer source characteristics themselves, which should also affect discriminability. Two studies examined inferred source characteristics by capitalizing on the out-group homogeneity effect, whereby in-group members are conceptualized as more diverse than out-group members. Participants learned about two sources who were described only as members of an in-group or an out-group and whose actions did not have higher a priori association with either group. Source memory was superior when participants believed the sources to be in-group members. This demonstrates that people spontaneously include inferred features with source representations and can capitalize on these features during source monitoring. Interestingly, information suggesting membership in one's in-group improved performance even for sources who had previously been considered out-group members (Experiment 2).
Small group discussion: Students perspectives.
Annamalai, Nachal; Manivel, Rajajeyakumar; Palanisamy, Rajendran
2015-08-01
Various alternative methods are being used in many medical colleges to reinforce didactic lectures in physiology. Small group teaching can take on a variety of different tasks such as problem-solving, role play, discussions, brainstorming, and debate. Research has demonstrated that group discussion promotes greater synthesis and retention of materials. The aims of this study were to adopt a problem-solving approach by relating basic sciences with the clinical scenario through self-learning. To develop soft skills, to understand principles of group dynamics, and adopt a new teaching learning methodology. Experimental study design was conducted in Phase I 1(st) year medical students of 2014-2015 batch (n = 120). On the day of the session, the students were grouped into small groups (15 each). The session started with the facilitator starting off the discussion. Feedback forms from five students in each group was taken (n = 40). A five point Likert scale was used ranging from strongly agree to strongly disagree. Data were analyzed using IBM SPSS Statistics for Windows, Version 21.0. Armonk, NY: IBM Corp. Our results show that 70% of the students opined that small group discussion were interactive, friendly, innovative, built interaction between teacher and student. Small group discussion increased their thought process and helped them in better communication. The small group discussion was interactive, friendly, and bridged the gap between the teacher and student. The student's communication skills are also improved. In conclusion, small group discussion is more effective than the traditional teaching methods.
Duality group actions on fermions
Pantev, Tony; Sharpe, Eric
2016-11-01
In this short paper we look at the action of T-duality and string duality groups on fermions, in maximally-supersymmetric theories and related theories. Briefly, we argue that typical duality groups such as SL(2 , ℤ) have sign ambiguities in their actions on fermions, and propose that pertinent duality groups be extended by ℤ2, to groups such as the metaplectic group. Specifically, we look at duality groups arising from mapping class groups of tori in M theory compactifications, T-duality, ten-dimensional type IIB S-duality, and (briefly) four-dimensional N = 4 super Yang-Mills, and in each case, propose that the full duality group is a nontrivial ℤ2 extension of the duality group acting on bosonic degrees of freedom, to more accurately describe possible actions on fermions. We also walk through U-duality groups for toroidal compactifications to nine, eight, and seven dimensions, which enables us to perform cross-consistency tests of these proposals.
[Group cohesion: a concept analysis].
Lin, Yen-Ru; Chen, Yu-Jung; Tzeng, Wen-Chii; Chou, Kuei-Ru
2007-10-01
Group cohesion is considered an essential condition for achieving a successful treatment team. High cohesion groups more readily reach their goals, with group members also feeling more secure about their functions and contributions. In clinical practice, nurses use group teaching and group therapy to help patient and family members gain knowledge and skills related to illness treatment and recuperation. Effective group leadership helps minimize non-productive time and manpower and enhance interpersonal interaction. A further advantage of group cohesion is that the more effective administration of nursing programs that results can raise the profession level of staffs and reduce turnover. Walker and Avant (1995) employ concept analysis to use defining attributes in order to apply the same definition and communication to the same profession. The purpose of this paper was to apply this methodology to an analysis of group cohesion. Steps used include a review of the literature on conceptual definitions of group cohesion, a determination of defining attributes, model construction, identification of borderline, contrary, and related cases, and identification of antecedents and consequences and empirical tools. It is hoped that this analysis can help nursing staff to gain a better understanding of the concept of group cohesion and to apply such to clinical practice and nursing administration.
Duality group actions on fermions
Pantev, T
2016-01-01
In this short paper we look at the action of T-duality and string duality groups on fermions, in maximally-supersymmetric theories and related theories. Briefly, we argue that typical duality groups such as SL(2,Z) have sign ambiguities in their actions on fermions, and propose that pertinent duality groups be extended by Z_2, to groups such as the metaplectic group. Specifically, we look at duality groups arising from mapping class groups of tori in M theory compactifications, T-duality, ten-dimensional type IIB S-duality, and (briefly) four-dimensional N=4 super Yang-Mills, and in each case, propose that the full duality group is a nontrivial Z_2 extension of the duality group acting on bosonic degrees of freedom, to more accurately describe possible actions on fermions. We also walk through U-duality groups for toroidal compactifications to nine, eight, and seven dimensions, which enables us to perform cross-consistency tests of these proposals.
Group lending and the role of the group leader
van Eijkel, R.; Hermes, C.L.M.; Lensink, B.W.
2011-01-01
This paper investigates strategic monitoring behavior within group lending. We show that monitoring efforts of group members differ in equilibrium due to the asymmetry between members in terms of future profits. In particular, we show that the entrepreneur with the highest future profits also puts i
Logspace Computations in Coxeter Groups and Graph Groups
Diekert, Volker; Lohrey, Markus
2012-01-01
Computing normal forms in groups (or monoids) is in general harder than solving the word problem (equality testing). However, normal form computation has a much wider range of applications. It is therefore interesting to investigate the complexity of computing normal forms for important classes of groups. For Coxeter groups we show that the following algorithmic tasks can be solved by a deterministic Turing machine using logarithmic work space, only: 1. Compute the length of any geodesic normal form. 2. Compute the set of letters occurring in any geodesic normal form. 3. Compute the Parikh-image of any geodesic normal form in case that all defining relations have even length (i.e., in even Coxeter groups.) 4. For right-angled Coxeter groups we can do actually compute the short length normal form in logspace. (Note that short length normal forms are geodesic.) Next, we apply the results to right-angled Artin groups. They are also known as free partially commutative groups or as graph groups. As a consequence o...
Good for the group? Explaining apparent group-level selection
Smallegange, I.M.; Egas, M.
2015-01-01
The idea that group selection can explain adaptive trait evolution is still controversial. Recent empirical work proposes evidence for group-level adaptation in a social spider, but the findings can also be explained from an individual-level perspective. The challenge remains to identify situations
Group reports. The recommendations proposed by the seven discussion groups
NN,
1989-01-01
GROUP 1 — Discussion leader S.H. Sohmer — Organization and the ideal format of a large Flora (over 10,000 species) The Working Group first recognized that there are really two major categories of Flora projects serving quite different needs in the Malesian region: the local/national projects that
The Local Group and other neighboring galaxy groups
Karachentsev, I D
2004-01-01
Over the last few years, rapid progress has been made in distance measurements for nearby galaxies based on the magnitude of the tip of red giant branch stars. Current CCD surveys with HST and large ground- based telescopes bring $\\sim$10%-accurate distances for roughly a hundred galaxies within 5 Mpc. The new data on distances to galaxies situated in (and around) the nearest groups: the Local Group, M81 group, CenA/M83 group, IC342/Maffei group, Sculptor filament, and Canes Venatici cloud allowed us to determine their total mass from the radius of the zero- velocity surface, $R_0$, which separates a group as bound against the homogeneous cosmic expansion. The values of $R_0$ for the virialized groups turn out to be close each other, in the range of 0.9 -- 1.3 Mpc. As a result, the total masses of the groups are close to each other, too, yielding total mass-to-blue luminosity ratios of 10 -- 40 $M_{\\sun}/L_{\\sun}$. The new total mass estimates are 3 -- 5 times lower than old virial mass estimates of these gro...
Group Journaling: A Tool for Reflection, Fun and Group Development
Asfeldt, Morten
2012-01-01
Personal journaling is common practice in outdoor programs and is an important means of reflection and meaning-making. For over 20 years the author has used group journals to promote reflection and understanding, raise important questions, explore difficult issues, develop writing and speaking skills, and enhance group development. In this…
Group theory and its applications
Thapa, Ram Kumar
2019-01-01
Every molecule possesses symmetry and hence has symmetry operations and symmetry elements. From symmetry properties of a system we can deduce its significant physical results. Consequently it is essential to operations of a system forms a group. Group theory is an abstract mathematical tool that underlies the study of symmetry and invariance. By using the concepts of symmetry and group theory, it is possible to obtain the members of complete set of known basis functions of the various irreducible representations of the group. I practice this is achieved by applying the projection operators to linear combinations of atomic orbital (LCAO) when the valence electrons are tightly bound to the ions, to orthogonalized plane waves (OPW) when valence electrons are nearly free and to the other given functions that are judged to the particular system under consideration. In solid state physics the group theory is indispensable in the context of finding the energy bands of electrons in solids. Group theory can be applied...
Non-Abelian Pseudocompact Groups
Directory of Open Access Journals (Sweden)
W. W. Comfort
2016-01-01
Full Text Available Here are three recently-established theorems from the literature. (A (2006 Every non-metrizable compact abelian group K has 2|K| -many proper dense pseudocompact subgroups. (B (2003 Every non-metrizable compact abelian group K admits 22|K| -many strictly finer pseudocompact topological group refinements. (C (2007 Every non-metrizable pseudocompact abelian group has a proper dense pseudocompact subgroup and a strictly finer pseudocompact topological group refinement. (Theorems (A, (B and (C become false if the non-metrizable hypothesis is omitted. With a detailed view toward the relevant literature, the present authors ask: What happens to (A, (B, (C and to similar known facts about pseudocompact abelian groups if the abelian hypothesis is omitted? Are the resulting statements true, false, true under certain natural additional hypotheses, etc.? Several new results responding in part to these questions are given, and several specific additional questions are posed.
Countably determined compact abelian groups
Dikranjan, Dikran
2008-01-01
For an abelian topological group G let G^* be the dual group of all continuous characters endowed with the compact open topology. A subgroup D of G determines G if the restriction homomorphism G^* --> D^* of the dual groups is a topological isomorphism. Given a scattered compact subset X of an infinite compact abelian group G such that |X|
Group discussion improves lie detection.
Klein, Nadav; Epley, Nicholas
2015-06-16
Groups of individuals can sometimes make more accurate judgments than the average individual could make alone. We tested whether this group advantage extends to lie detection, an exceptionally challenging judgment with accuracy rates rarely exceeding chance. In four experiments, we find that groups are consistently more accurate than individuals in distinguishing truths from lies, an effect that comes primarily from an increased ability to correctly identify when a person is lying. These experiments demonstrate that the group advantage in lie detection comes through the process of group discussion, and is not a product of aggregating individual opinions (a "wisdom-of-crowds" effect) or of altering response biases (such as reducing the "truth bias"). Interventions to improve lie detection typically focus on improving individual judgment, a costly and generally ineffective endeavor. Our findings suggest a cheap and simple synergistic approach of enabling group discussion before rendering a judgment.
Modelling group dynamic animal movement
DEFF Research Database (Denmark)
Langrock, Roland; Hopcraft, J. Grant C.; Blackwell, Paul G.
2014-01-01
Group dynamic movement is a fundamental aspect of many species' movements. The need to adequately model individuals' interactions with other group members has been recognised, particularly in order to differentiate the role of social forces in individual movement from environmental factors. However......, to date, practical statistical methods which can include group dynamics in animal movement models have been lacking. We consider a flexible modelling framework that distinguishes a group-level model, describing the movement of the group's centre, and an individual-level model, such that each individual...... makes its movement decisions relative to the group centroid. The basic idea is framed within the flexible class of hidden Markov models, extending previous work on modelling animal movement by means of multi-state random walks. While in simulation experiments parameter estimators exhibit some bias...
Groups, graphs and random walks
Salvatori, Maura; Sava-Huss, Ecaterina
2017-01-01
An accessible and panoramic account of the theory of random walks on groups and graphs, stressing the strong connections of the theory with other branches of mathematics, including geometric and combinatorial group theory, potential analysis, and theoretical computer science. This volume brings together original surveys and research-expository papers from renowned and leading experts, many of whom spoke at the workshop 'Groups, Graphs and Random Walks' celebrating the sixtieth birthday of Wolfgang Woess in Cortona, Italy. Topics include: growth and amenability of groups; Schrödinger operators and symbolic dynamics; ergodic theorems; Thompson's group F; Poisson boundaries; probability theory on buildings and groups of Lie type; structure trees for edge cuts in networks; and mathematical crystallography. In what is currently a fast-growing area of mathematics, this book provides an up-to-date and valuable reference for both researchers and graduate students, from which future research activities will undoubted...
Designing for informed group formation
DEFF Research Database (Denmark)
Nicolajsen, Hanne Westh; Juel Jacobsen, Alice; Riis, Marianne
2012-01-01
A new design ―project preparation‖ preparing for the group formation in problem based project work is proposed and investigated. The main problem is to overcome group formation based on existing relations. The hypothesis is that theme development and group formation are somewhat counterproductive....... Following research based design methodology an experiment separating the two was initiated.This was to provide for more openness and creativity in contrast to a design in which existing relations seem predominant.......A new design ―project preparation‖ preparing for the group formation in problem based project work is proposed and investigated. The main problem is to overcome group formation based on existing relations. The hypothesis is that theme development and group formation are somewhat counterproductive...
Group supervision for general practitioners
DEFF Research Database (Denmark)
Galina Nielsen, Helena; Sofie Davidsen, Annette; Dalsted, Rikke;
2013-01-01
AIM: Group supervision is a sparsely researched method for professional development in general practice. The aim of this study was to explore general practitioners' (GPs') experiences of the benefits of group supervision for improving the treatment of mental disorders. METHODS: One long...... considered important prerequisites for disclosing and discussing professional problems. CONCLUSION: The results of this study indicate that participation in a supervision group can be beneficial for maintaining and developing GPs' skills in dealing with patients with mental health problems. Group supervision......-established supervision group was studied closely for six months by observing the group sessions, and by interviewing GPs and their supervisors, individually and collectively. The interviews were recorded digitally and transcribed verbatim. The data were analysed using systematic text condensation. RESULTS: The GPs found...
All finitely presentable groups from link complements and Kleinian groups
Aitchison, Iain R
2010-01-01
We prove that every finitely presentable group G arises as the fundamental group of an orientable 3-complex obtained from a hyperbolic link complement, by coning each boundary torus of the link exterior to a distinct point. We define the closed-link-genus, clg(G), of any finitely presentable group G, which completely characterizes fundamental groups of closed orientable 3-manifolds: clg(G)=0 if and only if G is the fundamental group of a closed orientable 3-manifold. Moreover clg(G) gives an upper bound for the concept `genus(G)' of genus defined earlier by Aitchison and Reeves, and in turn is bounded by the minimal number of relations among all finite presentations of G.
Taxonomy Working Group Final Report
Parsons, Vickie S.; Beil, Robert J.; Terrone, Mark; Barth, Timothy S.; Panontin, Tina L.; Wales, Roxana; Rackley, Michael W.; Milne, James S.; McPherson, John W.; Dutra, Jayne E.; Shaw, Larry C.
2009-01-01
The purpose of the Taxonomy Working Group was to develop a proposal for a common taxonomy to be used by all NASA projects in the classifying of nonconformances, anomalies, and problems. Specifically, the group developed a recommended list of data elements along with general suggestions for the development of a problem reporting system to better serve NASA's need for managing, reporting, and trending project aberrant events. The Group's recommendations are reported in this document.
Cascade Product of Permutation Groups
Egri-Nagy, Attila; Nehaniv, Chrystopher L.
2013-01-01
We define the cascade product of permutation groups as an external product, an explicit construction of substructures of the iterated wreath product that are much smaller than the full wreath product. This construction is essential for computational implementations of algebraic hierarchical decompositions of finite automata. We show how direct, semidirect, and wreath products and group extensions can all be expressed as cascade products, and analyse examples of groups that can be constructed ...
Group Connectivity and Group Colorings of Graphs - A Survey
Institute of Scientific and Technical Information of China (English)
Hong-Jian LAI; Xiangwen LI; Yehong SHAO; Mingquan ZHAN
2011-01-01
In 1950s, Tutte introduced the theory of nowhere-zero flows as a tool to investigate the coloring problem of maps, together with his most fascinating conjectures on nowhere-zero flows. These have been extended by Jaeger et al. In 1992 to group connectivity, the nonhomogeneous form of nowhere-zero flows. Let G be a 2-edge-connected undirected graph, A be an (additive) abelian group and A* = A - {0}. The graph G is A-connected if G has an orientation D(G) such that for every each vertex v ∈ V(G), the total amount of f-values on the edges directed out from v minus the total amount of f-values on the edges directed into v is equal to b(v). The group coloring of a graph arises from the dual concept of group connectivity. There have been lots of investigations on these subjects.This survey provides a summary of researches on group connectivity and group colorings of graphs. It contains the following sections.1. Nowhere-zero Flows and Group Connectivity of Graphs 2. Complete Families and A-reductions 3. Reductions with Edge-deletions, Vertex-deletions and Vertex-splitting 4. Group Colorings as a Dual Concept of Group Connectivity 5. Brooks Theorem, Its Variations and Dual Forms 6. Planar Graphs 7. Group Connectivity of Graphs 7.1 Highly Connected Graphs and Collapsible Graphs 7.2 Degrees Conditions 7.3 Complementary Graphs 7.4 Products of Graphs 7.5 Graphs with Diameter at Most 2 7.6 Line Graphs and Claw-Free Graphs 7.7 Triangular Graphs 7.8 Claw-decompositions and All Tutte-orientations
Group decision-making: Factors that affect group effectiveness
Directory of Open Access Journals (Sweden)
Juliana Osmani
2016-03-01
Full Text Available Organizations are operating in a dynamic and turbulent environment. In these conditions, they have to make decisions for new problems or situations. Most of decisions are therefore non-programmed and unstructured, accompanied by risk and uncertainty. Moreover, the problems and situations are complex. All organizations are oriented towards group decisionmaking processes, as useful tools to cope with uncertainty and complexity. Apart from the necessity, companies are turning towards participatory processes also to benefit from the important advantages that these processes offer. Organizations have realized the importance of group decision-making processes to contribute to the creation of sustainable competitive advantages. Main objective of this paper is to show that group decision-making processes do not offer guarantee for good decisions, because the effectiveness of group is affected by many factors. So, the first thing done in this paper is discussing about the benefits and limitations that accompany the use of groups with decision-making purpose. Afterwards, we stop on the different factors that influence the group’s ability to make good decisions. The aim is to emphasize that regardless of the many advantages of groups, some factors as group size, type of communication within the group, leadership style, the norms, the differentiation of roles and statuses, cohesion and compliance degree should be the main elements to keep into consideration because they affect the effectiveness of group. In this regard, is discussed how such factors influence the quality of decision and then we try to draw some conclusions that can improve and make better and easier group decision-making processes.
Strategic Groups and Banks’ Performance
Directory of Open Access Journals (Sweden)
Gregorz Halaj
2009-06-01
Full Text Available The theory of strategic groups predicts the existence of stable groups of companies that adopt similar business strategies. The theory also predicts that groups will differ in performance and in their reaction to external shocks. We use cluster analysis to identify strategic groups in the Polish banking sector. We find stable groups in the Polish banking sector constituted after the year 2000 following the major privatisation and ownership changes connected with transition to the mostly-privately-owned banking sector in the late 90s. Using panel regression methods we show that the allocation of banks to groups is statistically significant in explaining the profitability of banks. Thus, breaking down the banks into strategic groups and allowing for the different reaction of the groups to external shocks helps in a more accurate explanation of profits of the banking sector as a whole.Therefore, a more precise ex ante assessment of the loss absorption capabilities of banks is possible, which is crucial for an analysis of banking sector stability. However, we did not find evidence of the usefulness of strategic groups in explaining the quality of bank portfolios as measured by irregular loans over total loans, which is a more direct way to assess risks to financial stability.
Bosonization and Lie Group Structure
Ha, Yuan K
2015-01-01
We introduce a concise quantum operator formula for bosonization in which the Lie group structure appears in a natural way. The connection between fermions and bosons is found to be exactly the connection between Lie group elements and the group parameters. Bosonization is an extraordinary way of expressing the equation of motion of a complex fermion field in terms of a real scalar boson in two dimensions. All the properties of the fermion field theory are known to be preserved under this remarkable transformation with substantial simplification and elucidation of the original theory, much like Lie groups can be studied by their Lie algebras.
Automorphism groups of some algebras
Institute of Scientific and Technical Information of China (English)
PARK; Hong; Goo; LEE; Jeongsig; CHOI; Seul; Hee; NAM; Ki-Bong
2009-01-01
The automorphism groups of algebras are found in many papers. Using auto-invariance, we find the automorphism groups of the Laurent extension of the polynomial ring and the quantum n-plane (respectively, twisting polynomial ring) in this work. As an application of the results of this work, we can find the automorphism group of a twisting algebra. We define a generalized Weyl algebra and show that the generalized Weyl algebra is simple. We also find the automorphism group of a generalized Weyl algebra. We show that the generalized Weyl algebra Am,m+n is the universal enveloping algebra of the generalized Witt algebra W(m,m + n).
Twisted conjugacy in braid groups
González-Meneses, Juan
2011-01-01
In this note we solve the twisted conjugacy problem for braid groups, i.e. we propose an algorithm which, given two braids $u,v\\in B_n$ and an automorphism $\\phi \\in Aut (B_n)$, decides whether $v=(\\phi (x))^{-1}ux$ for some $x\\in B_n$. As a corollary, we deduce that each group of the form $B_n \\rtimes H$, a semidirect product of the braid group $B_n$ by a torsion-free hyperbolic group $H$, has solvable conjugacy problem.
Character theory of finite groups
Isaacs, I Martin
2006-01-01
Character theory is a powerful tool for understanding finite groups. In particular, the theory has been a key ingredient in the classification of finite simple groups. Characters are also of interest in their own right, and their properties are closely related to properties of the structure of the underlying group. The book begins by developing the module theory of complex group algebras. After the module-theoretic foundations are laid in the first chapter, the focus is primarily on characters. This enhances the accessibility of the material for students, which was a major consideration in the
Visual Grouping by Neural Oscillators
Yu, Guoshen
2008-01-01
Distributed synchronization is known to occur at several scales in the brain, and has been suggested as playing a key functional role in perceptual grouping. State-of-the-art visual grouping algorithms, however, seem to give comparatively little attention to neural synchronization analogies. Based on the framework of concurrent synchronization of dynamic systems, simple networks of neural oscillators coupled with diffusive connections are proposed to solve visual grouping problems. Multi-layer algorithms and feedback mechanisms are also studied. The same algorithm is shown to achieve promising results on several classical visual grouping problems, including point clustering, contour integration and image segmentation.
Abstract commensurators of braid groups
Leininger, Christopher J; Margalit, Dan
2005-01-01
Let B_n be the braid group on n strands, with n at least 4, and let Mod(S) be the extended mapping class group of the sphere with n+1 punctures. We show that the abstract commensurator of B_n is isomorphic to a semidirect product of Mod(S) with a group we refer to as the transvection subgroup, Tv(B_n). We also show that Tv(B_n) is itself isomorphic to a semidirect product of an infinite dimensional rational vector space with the multiplicative group of nonzero rational numbers.
Automorphism groups of some algebras
Institute of Scientific and Technical Information of China (English)
PARK Hong Goo; LEE Jeongsig; CHOI Seul Hee; CHEN XueQing; NAM Ki-Bong
2009-01-01
The automorphism groups of algebras are found in many papers. Using auto-invariance, we find the automorphism groups of the Laurent extension of the polynomial ring and the quantum n-plane (respectively, twisting polynomial ring) in this work. As an application of the results of this work, we can find the automorphism group of a twisting algebra. We define a generalized Weyl algebra and show that the generalized Weyl algebra is simple. We also find the automorphism group of a generalized Weyl algebra. We show that the generalized Weyl algebra Am,m+n is the universal enveloping algebra of the generalized Witt algebra W(m, m+n).
Membership Rules - LHCRRB Scrutiny Group
2017-01-01
The LHC Resources Scrutiny Group was created in 2001 to review and scrutinize the M&O cost estimates of the LHC Collaborations. The Scrutiny Group first met on 23 August 2001 and reported to the RRBs at its 13th Plenary meeting, in October 2001 (RRB-D-2001-8). The Scrutiny Group operates according to the procedures set out in Annex 12 of the MoUs for the M&O of the LHC experiments. This document lists the Rules of Procedure that apply to the M&O Scrutiny Group
Leadership in moving human groups.
Directory of Open Access Journals (Sweden)
Margarete Boos
2014-04-01
Full Text Available How is movement of individuals coordinated as a group? This is a fundamental question of social behaviour, encompassing phenomena such as bird flocking, fish schooling, and the innumerable activities in human groups that require people to synchronise their actions. We have developed an experimental paradigm, the HoneyComb computer-based multi-client game, to empirically investigate human movement coordination and leadership. Using economic games as a model, we set monetary incentives to motivate players on a virtual playfield to reach goals via players' movements. We asked whether (I humans coordinate their movements when information is limited to an individual group member's observation of adjacent group member motion, (II whether an informed group minority can lead an uninformed group majority to the minority's goal, and if so, (III how this minority exerts its influence. We showed that in a human group--on the basis of movement alone--a minority can successfully lead a majority. Minorities lead successfully when (a their members choose similar initial steps towards their goal field and (b they are among the first in the whole group to make a move. Using our approach, we empirically demonstrate that the rules of swarming behaviour apply to humans. Even complex human behaviour, such as leadership and directed group movement, follow simple rules that are based on visual perception of local movement.
Van den Bergh, S
1999-01-01
The small Antlia-Sextans clustering of galaxies is located at a distance of only 1.36 Mpc from the Sun, and 1.72 Mpc from the adopted barycenter of the Local Group. The latter value is significantly greater than the radius of the zero- velocity surface of the Local Group which, for an assumed age of 14 Gyr, has Ro = 1.18 " 0.15 Mpc. This, together with the observation that the members of the Ant-Sex group have a mean redshift of +114 " 12 km s-1 relative to the centroid of the Local Group, suggests that the Antlia-Sextans group is not bound to our Local Group, and that it is expanding with the Hubble flow. If this conclusion is correct, then Antlia-Sextans may be the nearest external clustering of galaxies. The total galaxian population of the Ant-Sex group is ~ 1/5 that of the Local Group. However, the integrated luminosity of Ant-Sex is two orders of magnitude lower than that of the Local Group. Subject headings: Galaxies - clusters: individual (Antlia-Sextans)
Stick with your group: young children's attitudes about group loyalty.
Misch, Antonia; Over, Harriet; Carpenter, Malinda
2014-10-01
For adults, loyalty to the group is highly valued, yet little is known about how children evaluate loyalty. We investigated children's attitudes about loyalty in a third-party context. In the first experiment, 4- and 5-year-olds watched a video of two groups competing. Two members of the losing group then spoke. The disloyal individual said she wanted to win and therefore would join the other group. The loyal individual said she also wanted to win but would stay with her group. Children were then asked five forced-choice questions about these two individuals' niceness, trustworthiness, morality, and deservingness of a reward. The 5-year-olds preferred the loyal person across all questions; results for the 4-year-olds were considerably weaker but in the same direction. The second experiment investigated the direction of the effect in 5-year-olds. In this experiment, children answered questions about either a loyal individual, a disloyal individual, or a neutral individual. Children rated both the loyal and neutral individuals more positively than the disloyal individual across a number of measures. Thus, whereas disloyal behavior is evaluated unfavorably by children, loyal behavior is the expected norm. These results suggest that, at least from 5 years of age, children understand that belonging to a group entails certain commitments. This marks an important step in their own ability to negotiate belonging and become trustworthy and reliable members of their social groups.
Energy Innovation. IVO Group`s Research and Development Report
Energy Technology Data Exchange (ETDEWEB)
Salminen, P.; Laiho, Y.; Kaikkonen, H.; Leisio, C.; Hinkkanen, S. [eds.
1996-11-01
This annual booklet of the IVO Group`s research and development activities presents a number of articles, written by experts from IVO. The products described are examples of the environmentally-oriented selection made available by the IVO Group. In fact, the entire energy technology developed in Finland is environmentally oriented, if seen from the international perspective. The new business potential of environmental technology is great, and it is believed that in the year 2000, exportation of Finnish know-how in the field of energy-saving and efficiency will exceed the value of out energy imports
Energy Innovation. IVO group`s research and development report
Energy Technology Data Exchange (ETDEWEB)
Salminen, P.; Laiho, Y.; Kaikkonen, H.; Leisio, C.; Hinkkanen, S.; Fletcher, R. [eds.
1997-11-01
This annual booklet of the IVO Group`s research and development activities presents a number of articles, written by experts from IVO. The products described are examples of the environmentally-oriented selection made available by the IVO Group. In fact, the entire energy technology developed in Finland is environmentally oriented, if seen from the international perspective. The new business potential of environmental technology is great, and it is believed that in the year 2000, exportation of Finnish know-how in the field of energy-saving and efficiency will exceed the value of out energy imports
Punctured torus groups and 2-bridge knot groups
Akiyoshi, Hirotaka; Wada, Masaaki; Yamashita, Yasushi
2007-01-01
This monograph is Part 1 of a book project intended to give a full account of Jorgensen's theory of punctured torus Kleinian groups and its generalization, with application to knot theory. Although Jorgensen's original work was not published in complete form, it has been a source of inspiration. In particular, it has motivated and guided Thurston's revolutionary study of low-dimensional geometric topology. In this monograph, we give an elementary and self-contained description of Jorgensen's theory with a complete proof. Through various informative illustrations, readers are naturally led to an intuitive, synthetic grasp of the theory, which clarifies how a very simple fuchsian group evolves into complicated Kleinian groups.
2002 annual report EDF group; 2002 rapport annuel groupe EDF
Energy Technology Data Exchange (ETDEWEB)
NONE
2002-07-01
This document is the 2002 annual report of Electricite de France (EdF) group, the French electric utility. Content: Introductory section (EDF at a glance, Chairman's message, 2002 Highlights); Corporate governance and Group strategy (Corporate governance, sustainable growth strategy, EDF branches); Financial performance (Reaching critical mass, Margins holding up well, Balance sheet); Human resources (Launching Group-wide synergies, Optimising human resources); Customers (Major customers, SMEs and professional customers, Local authorities, Residential customers, Ensuring quality access to electricity); Generation (A balanced energy mix, Nuclear generation, Fossil-fuelled generation, Renewable energies); Corporate social responsibility (Global and local partnerships, Promoting community development)
The group of homomorphisms of abelian torsion groups
Directory of Open Access Journals (Sweden)
M. W. Legg
1979-01-01
Full Text Available Let G and A be abelian torsion groups. In[5], R. S. Pierce develops a complete set of invariants for Hom(G, A. To compute these invariants he introduces, and uses extensively, the group of small homomorphisms of G into A. Also, using some of Pierce's methods, Fuchs characterizes this group in [1]. Our purpose in this paper is to characterize Hom(G, A in what seems to be a more natural manner than either of the treatments just mentioned.
Energy Innovation. IVO Group`s Research and Development Report
Energy Technology Data Exchange (ETDEWEB)
Salminen, P.; Laiho, Y.; Kaikkonen, H.; Leisio, C.; Hinkkanen, S. [eds.
1996-11-01
This annual booklet of the IVO Group`s research and development activities presents a number of articles, written by experts from IVO. The products described are examples of the environmentally-oriented selection made available by the IVO Group. In fact, the entire energy technology developed in Finland is environmentally oriented, if seen from the international perspective. The new business potential of environmental technology is great, and it is believed that in the year 2000, exportation of Finnish know-how in the field of energy-saving and efficiency will exceed the value of out energy imports
Group theoretical methods in Physics
Energy Technology Data Exchange (ETDEWEB)
Olmo, M.A. del; Santander, M.; Mateos Guilarte, J.M. (eds.) (Universidad de Valladolid. Facultad de Ciencias. Valladolid (Spain))
1993-01-01
The meeting had 102 papers. These was distributed in following areas: -Quantum groups,-Integrable systems,-Physical Applications of Group Theory,-Mathematical Results,-Geometry, Topology and Quantum Field Theory,-Super physics,-Super mathematics,-Atomic, Molecular and Condensed Matter Physics. Nuclear and Particle Physics,-Symmetry and Foundations of classical and Quantum mechanics.
Evaluating groups in learning disabilities.
Chia, S H
Groupwork can be effective in meeting a range of needs presented by students with profound learning disabilities. This article describes the process involved in setting up groups for these students, and includes examples of a group session and methods for evaluating groupwork.
Group Development: Extending Tuckman's Theory.
Maples, Mary F.
1988-01-01
Presents a framework for extending the Tuckman model of developmental sequence in small groups. Considers Tuckman's stages of forming, storming, norming, performing, and adjourning lacking in descriptive depth and clear definition. Gathered and organized group dynamics graduate students' assessments of characteristics of stages over five-year…
Lenzing Group: Expanding in Asia
Institute of Scientific and Technical Information of China (English)
Wang Ting
2007-01-01
@@ On April 10th,the Lenzing Group started operation of its new viscose fiber plant at Nanjing(China).The new viscose fiber plant is the second production site for this fiber of theLenzing Group in Asia and its sixth production site globally.
Institute of Scientific and Technical Information of China (English)
1998-01-01
Group work is a widely adopted activity in the oral English class, and certainly boasts a number of advantages. However, problems may occur in the organization of group discussions and the reports afterwards. This paper puts forward some suggestions for solving these problems.
Second Anthropocene Working Group meeting
2016-01-01
The second meeting of the Anthropocene Working Group (AWG) was held at the McDonald Institute for Archaeological Research, University of Cambridge, on 24th and 25th November 2015. It took the form of a workshop with 12 members of the working group and numerous archaeologists from the Institute in lively conversation with each other. Dis...
Social Disaffection Among Deprived Groups
Katz, Daniel; And Others
1977-01-01
Examines groups of individuals of differing income, education, occupation, age and sex and investigates the extent of differences between these groups on three levels: nationalism, support for the political system and satisfaction with aspects of every day living. Available from: International Journal of Intercultural Relations, Transaction…
Energy velocity and group velocity
Institute of Scientific and Technical Information of China (English)
陈宇
1995-01-01
A new Lagrangian method for studying the relationship between the energy velocity and the group velocity is described. It is proved that under the usual quasistatic electric field, the energy velocity is identical to the group velocity for acoustic waves in anisotropic piezoelectric (or non-piezoelectric) media.
The Globalization of Cooperative Groups.
Valdivieso, Manuel; Corn, Benjamin W; Dancey, Janet E; Wickerham, D Lawrence; Horvath, L Elise; Perez, Edith A; Urton, Alison; Cronin, Walter M; Field, Erica; Lackey, Evonne; Blanke, Charles D
2015-10-01
The National Cancer Institute (NCI)-supported adult cooperative oncology research groups (now officially Network groups) have a longstanding history of participating in international collaborations throughout the world. Most frequently, the US-based cooperative groups work reciprocally with the Canadian national adult cancer clinical trial group, NCIC CTG (previously the National Cancer Institute of Canada Clinical Trials Group). Thus, Canada is the largest contributor to cooperative groups based in the United States, and vice versa. Although international collaborations have many benefits, they are most frequently utilized to enhance patient accrual to large phase III trials originating in the United States or Canada. Within the cooperative group setting, adequate attention has not been given to the study of cancers that are unique to countries outside the United States and Canada, such as those frequently associated with infections in Latin America, Asia, and Africa. Global collaborations are limited by a number of barriers, some of which are unique to the countries involved, while others are related to financial support and to US policies that restrict drug distribution outside the United States. This article serves to detail the cooperative group experience in international research and describe how international collaboration in cancer clinical trials is a promising and important area that requires greater consideration in the future. Copyright © 2015 Elsevier Inc. All rights reserved.
Group Work in Science Classrooms
McGregor, Debbie; Tolmie, Andrew
2009-01-01
This article considers how students might work together in small groups, from two to eight, in either a primary or secondary science classroom. The nature of group work can vary widely and could include, for example, a pair carrying out an illustrative experiment, a trio or quad debating climate change, or six or seven rehearsing how they will…
Loop groups and noncommutative geometry
Carpi, Sebastiano
2015-01-01
We describe the representation theory of loop groups in terms of K-theory and noncommutative geometry. This is done by constructing suitable spectral triples associated with the level l projective unitary positive-energy representations of any given loop group LG. The construction is based on certain supersymmetric conformal field theory models associated with LG.
Measuring group climate in prison
van der Helm, P.; Stams, G.J.; van der Laan, P.
2011-01-01
The present study examines the construct validity and reliability of the Prison Group Climate Instrument (PGCI) in a sample of 77 adolescents placed in a Dutch youth prison and 49 adult prisoners living in a Dutch psychiatric prison with a therapeutic living group structure. Confirmatory factor anal
Exploring Interpersonal Compatibility in Groups.
Keyton, Joann
This study investigated William Schutz's three-dimensional theory of interpersonal behavior and compatibility (FIRO) to determine its validity as a group measure of compatibility. Data were collected from 248 students enrolled in a multi-section course in small group communications at a large midwestern university. Subjects self-selected…
Topological dynamics and definable groups
Pillay, Anand
2012-01-01
Following the works of Newelski we continue the study of the relations between abstract topological dynamics and generalized stable group theory. We show that the Ellis theory, applied to the action of G(M) on its type space, for G an fsg group in a NIP theory, and M any model, yields the quotient G/G^00.
Play and Positive Group Dynamics
Thompson, Pam; White, Samantha
2010-01-01
Play is an important part of a child's life and essential to learning and development (Vygotsky, 1978). It is vital that students participate in play and that play be conducted in a restorative manner. Play allows a variety of group dynamics to emerge. Irvin Yalom (1995) identifies 11 curative factors of the group experience. These factors include…
Working Group VII: Food Products
Midtvedt, Tore
2011-01-01
The working group recognised that many international and national organisations had developed strategies for evaluating the safety of new food products produced by the application of genetic modification. These strategies were necessarily fairly general and the group agreed that it should focus its attention on the pathogenicity and toxicity of live microorganisms used in food.
Challenges Facing Group Work Online
Chang, Bo; Kang, Haijun
2016-01-01
Online group work can be complicated because of its asynchronous characteristics and lack of physical presence, and its requirements for skills in handling technology, human relationships, and content-related tasks. This study focuses on the administrative, logistical and relationship-related challenges in online group work. Challenges in areas…
Renormalization group for evolving networks.
Dorogovtsev, S N
2003-04-01
We propose a renormalization group treatment of stochastically growing networks. As an example, we study percolation on growing scale-free networks in the framework of a real-space renormalization group approach. As a result, we find that the critical behavior of percolation on the growing networks differs from that in uncorrelated networks.
Group Intervention in Pediatric Rehabilitation
LaForme Fiss, Alyssa
2012-01-01
Group intervention in pediatric physical and occupational therapy is an alternative to individual intervention allowing the therapist to meet the needs of multiple children at one time. Survey research indicates that approximately 40% to 60% of pediatric physical and occupational therapists use group intervention at least occasionally in practice,…
Group Work with Transgender Clients
Dickey, Lore M.; Loewy, Michael I.
2010-01-01
Drawing on the existing literature, the authors' research and clinical experiences, and the first author's personal journey as a member and leader of the transgender community, this article offers a brief history of group work with transgender clients followed by suggestions for group work with transgender clients from a social justice…
Modeling Interactions in Small Groups
Heise, David R.
2013-01-01
A new theory of interaction within small groups posits that group members initiate actions when tension mounts between the affective meanings of their situational identities and impressions produced by recent events. Actors choose partners and behaviors so as to reduce the tensions. A computer model based on this theory, incorporating reciprocal…
Working group report: Quantum chromodynamics
Indian Academy of Sciences (India)
V Ravindra; Pankaj Agrawal; Rahul Basu; Satyaki Bhattacharya; J Blümlein; V Del Duca; R Harlander; D Kosower; Prakash Mathews; Anurag Tripathi
2006-11-01
This is the report of the subgroup QCD of Working Group-4 at WHEPP-9. We present the activities that had taken place in the subgroup and report some of the partial results arrived at following the discussion at the working group meetings.
Groups and Geometries : Siena Conference
Kantor, William; Lunardon, Guglielmo; Pasini, Antonio; Tamburini, Maria
1998-01-01
On September 1-7, 1996 a conference on Groups and Geometries took place in lovely Siena, Italy. It brought together experts and interested mathematicians from numerous countries. The scientific program centered around invited exposi tory lectures; there also were shorter research announcements, including talks by younger researchers. The conference concerned a broad range of topics in group theory and geometry, with emphasis on recent results and open problems. Special attention was drawn to the interplay between group-theoretic methods and geometric and combinatorial ones. Expanded versions of many of the talks appear in these Proceedings. This volume is intended to provide a stimulating collection of themes for a broad range of algebraists and geometers. Among those themes, represented within the conference or these Proceedings, are aspects of the following: 1. the classification of finite simple groups, 2. the structure and properties of groups of Lie type over finite and algebraically closed fields of f...
Chaotic renormalization-group trajectories
DEFF Research Database (Denmark)
Damgaard, Poul H.; Thorleifsson, G.
1991-01-01
, or in regions where the renormalization-group flow becomes chaotic. We present some explicit examples of these phenomena for the case of a Lie group valued spin-model analyzed by means of a variational real-space renormalization group. By directly computing the free energy of these models around the parameter......Under certain conditions, the renormalization-group flow of models in statistical mechanics can change dramatically under just very small changes of given external parameters. This can typically occur close to bifurcations of fixed points, close to the complete disappearance of fixed points...... regions in which such nontrivial modifications of the renormalization-group flow occur, we can extract the physical consequences of these phenomena....
Group Music Therapy for Prisoners
DEFF Research Database (Denmark)
Chen, Xi Jing; Hannibal, Niels; Xu, Kevin
2014-01-01
The prevalence of psychological problems is high in prisons. Many prisoners have unmet needs for appropriate treatments. Although previous studies have suggested music therapy to be a successful treatment modality for prisoners, more rigorous evidence is needed. This parallel randomised controlled...... study aims to investigate the effectiveness of group music therapy to reduce anxiety and depression, and raise self-esteem in prisoners. One hundred and ninety two inmates from a Chinese prison will be allocated to two groups through randomisation. The experimental group will participate in biweekly...... group music therapy for 10 weeks (20 sessions) while the control group will be placed on a waitlist. Anxiety, depression and self-esteem will be measured by self-report scales three times: before, at the middle, and at the end of the intervention. Logs by the participants and their daily routine...
Decision Dynamics in Group Evacuation
Han, Fangqiu; Schlesinger, Kimberly J; Gür, Izzeddin; Carlson, Jean M
2016-01-01
Identifying factors that affect human decision making and quantifying their influence remain essential and challenging tasks for the design and implementation of social and technological communication systems. We report results of a behavioral experiment involving decision making in the face of an impending natural disaster. In a controlled laboratory setting, we characterize individual and group evacuation decision making influenced by several key factors, including the likelihood of the disaster, available shelter capacity, group size, and group decision protocol. Our results show that success in individual decision making is not a strong predictor of group performance. We use an artificial neural network trained on the collective behavior of subjects to predict individual and group outcomes. Overall model accuracy increases with the inclusion of a subject-specific performance parameter based on laboratory trials that captures individual differences. In parallel, we demonstrate that the social media activit...
GROUP LAZINESS: THE EFFECT OF SOCIAL LOAFING ON GROUP PERFORMANCE
National Research Council Canada - National Science Library
Xiangyu Ying; Huanhuan Li; Shan Jiang; Fei Peng; Zhongxin Lin
2014-01-01
Social loafing has been defined as a phenomenon in which people exhibit a sizable decrease in individual effort when performing in groups as compared to when they perform alone, and has been regarded...
Stackable groups, tame filling invariants, and algorithmic properties of groups
Brittenham, Mark
2011-01-01
We introduce a combinatorial property for finitely generated groups called stackable that implies the existence of an inductive procedure for constructing van Kampen diagrams with respect to a canonical finite presentation. We also define algorithmically stackable groups, for which this procedure is an effective algorithm. This property gives a uniform model for algorithms arising from both rewriting systems and almost convexity for groups. We also introduce a new pair of asymptotic invariants that are filling inequalities refining the notions of intrinsic and extrinsic diameter inequalities for finitely presented groups. These tame filling invariants are quasi-isometry invariants, up to Lipschitz equivalence of functions (and, in the case of the intrinsic tame filling invariant, up to choice of a sufficiently large set of defining relators). We show that radial tameness functions are equivalent to the extrinsic tame filling invariant condition, and so intrinsic tame filling invariants can be viewed as the in...
Dealer Group or Financial Planning Group? A Brief Technical Note
Directory of Open Access Journals (Sweden)
Lujer Santacruz
2011-06-01
Full Text Available This technical note examines whether the industry practice of using the term dealer group when referring to afinancial planning group contributes to the general perception that financial advisers are not objective whenmaking financial product recommendations. An experimental design carried out through an online survey isused. This is supplemented by a direct comparison survey on the two terminologies. The results provide acase for the industry to adopt a new terminology.
EDF group - annual report 2003; Groupe EDF - rapport annuel 2003
Energy Technology Data Exchange (ETDEWEB)
NONE
2004-07-01
This document contains the magazine, the financial statements and the sustainable development report of Electricite de France (EdF) group for 2003: 1 - the magazine (chairman's statement, group profile, vision and strategy); 2 - the consolidated financial statements for the period ended 31 December 2003 (statutory auditors' report on the consolidated financial statements, EDF's summary annual financial statements); 3 - sustainable development report (transparency and dialogue, responsibility, commitment, partnerships for progress). (J.S.)
Third group cohomology and gerbes over Lie groups
Mickelsson, Jouko; Wagner, Stefan
2016-10-01
The topological classification of gerbes, as principal bundles with the structure group the projective unitary group of a complex Hilbert space, over a topological space H is given by the third cohomology H3(H , Z) . When H is a topological group the integral cohomology is often related to a locally continuous (or in the case of a Lie group, locally smooth) third group cohomology of H. We shall study in more detail this relation in the case of a group extension 1 → N → G → H → 1 when the gerbe is defined by an abelian extension 1 → A → N ˆ → N → 1 of N. In particular, when Hs1 (N , A) vanishes we shall construct a transgression map Hs2 (N , A) → Hs3 (H ,AN) , where AN is the subgroup of N-invariants in A and the subscript s denotes the locally smooth cohomology. Examples of this relation appear in gauge theory which are discussed in the paper.
Bayesian hierarchical grouping: Perceptual grouping as mixture estimation.
Froyen, Vicky; Feldman, Jacob; Singh, Manish
2015-10-01
We propose a novel framework for perceptual grouping based on the idea of mixture models, called Bayesian hierarchical grouping (BHG). In BHG, we assume that the configuration of image elements is generated by a mixture of distinct objects, each of which generates image elements according to some generative assumptions. Grouping, in this framework, means estimating the number and the parameters of the mixture components that generated the image, including estimating which image elements are "owned" by which objects. We present a tractable implementation of the framework, based on the hierarchical clustering approach of Heller and Ghahramani (2005). We illustrate it with examples drawn from a number of classical perceptual grouping problems, including dot clustering, contour integration, and part decomposition. Our approach yields an intuitive hierarchical representation of image elements, giving an explicit decomposition of the image into mixture components, along with estimates of the probability of various candidate decompositions. We show that BHG accounts well for a diverse range of empirical data drawn from the literature. Because BHG provides a principled quantification of the plausibility of grouping interpretations over a wide range of grouping problems, we argue that it provides an appealing unifying account of the elusive Gestalt notion of Prägnanz.
Spin networks for noncompact groups
Freidel, Laurent; Livine, Etera R.
2003-03-01
Spin networks are a natural generalization of Wilson loop functionals. They have been extensively studied in the case where the gauge group is compact and it has been shown that they naturally form a basis of gauge invariant observables. Physically the restriction to compact gauge groups is enough for the study of Yang-Mills theories, however it is well known that noncompact groups naturally arise as internal gauge groups for Lorentzian gravity models. In this context, a proper construction of gauge invariant observables is needed. The purpose of the present work is to define the notion of spin network states for noncompact groups. We first build, by a careful gauge fixing procedure, a natural measure and a Hilbert space structure on the space of gauge invariant graph connections. Spin networks are then defined as generalized eigenvectors of a complete set of hermitic commuting operators. We show how the delicate issue of taking the quotient of a space by noncompact groups can be address in term of algebraic geometry. We finally construct the full Hilbert space containing all spin network states. Having in mind applications to gravity, we illustrate our results for the groups SL(2,R) and SL(2,C).
Congruence Subgroups of Hecke Groups
Institute of Scientific and Technical Information of China (English)
Bo CHEN; Ping Zhi YUAN
2009-01-01
Hecke groups are an important tool in investigating functional equations, and congruence subgroups of Hecke groups play an important rule in research of the solutions of the Dirichlet series.When q, m are two primes, congruence subgroups and the principal congruence subgroups of level m of the Hecke group H(√q) have been investigated in many papers. In this paper, we generalize these results to the case where q is a positive integer with q ≥ 5, √q ￠ Z and m is a power of an odd prime.
Semi-Quantitative Group Testing
Emad, Amin
2012-01-01
We consider a novel group testing procedure, termed semi-quantitative group testing, motivated by a class of problems arising in genome sequence processing. Semi-quantitative group testing (SQGT) is a non-binary pooling scheme that may be viewed as a combination of an adder model followed by a quantizer. For the new testing scheme we define the capacity and evaluate the capacity for some special choices of parameters using information theoretic methods. We also define a new class of disjunct codes suitable for SQGT, termed SQ-disjunct codes. We also provide both explicit and probabilistic code construction methods for SQGT with simple decoding algorithms.
Geometry, rigidity, and group actions
Farb, Benson; Zimmer, Robert J
2011-01-01
The study of group actions is more than a hundred years old but remains to this day a vibrant and widely studied topic in a variety of mathematic fields. A central development in the last fifty years is the phenomenon of rigidity, whereby one can classify actions of certain groups, such as lattices in semi-simple Lie groups. This provides a way to classify all possible symmetries of important spaces and all spaces admitting given symmetries. Paradigmatic results can be found in the seminal work of George Mostow, Gergory Margulis, and Robert J. Zimmer, among others.The p
Wave propagation and group velocity
Brillouin, Léon
1960-01-01
Wave Propagation and Group Velocity contains papers on group velocity which were published during the First World War and are missing in many libraries. It introduces three different definitions of velocities: the group velocity of Lord Rayleigh, the signal velocity of Sommerfeld, and the velocity of energy transfer, which yields the rate of energy flow through a continuous wave and is strongly related to the characteristic impedance. These three velocities are identical for nonabsorbing media, but they differ considerably in an absorption band. Some examples are discussed in the last chapter
MODELLING OF ONLINE GROUP DISCOUNTS
Directory of Open Access Journals (Sweden)
Karlo Kotarac
2013-02-01
Full Text Available Web pages for group discounts have become very popular in the past few years. In this paper we concentrate on the group discounts for the service industry in which a quality of the service plays an important role in retaining customers which in return affects business profitability. We present a model of the group discount offer from a merchant’s point view. A merchant decides about the size of the discount offered, having in mind quality of the service offered which is affected by the number of customers who use the service. Finally, we derive the first order optimality conditions.
Marketing audit in group practice.
Blackburn, J M
1984-01-01
The marketing audit, whether large-scale or small-scale, will soon be critical to the success of every medical group practice. This dynamic process, in which the many components of a group's marketing efforts are analyzed, is examined from the perspective of ideal circumstances and unlimited resources, and more pragmatically, from the perspective of various-sized groups, with different resources and marketing talent. The audit components are prioritized, possible adaptations and combinations are presented, and reasonable implementation mechanisms, designed to address audit outcomes, are suggested.
Group theory and its applications
Loebl, Ernest M
1975-01-01
Group Theory and its Applications, Volume III covers the two broad areas of applications of group theory, namely, all atomic and molecular phenomena, as well as all aspects of nuclear structure and elementary particle theory.This volume contains five chapters and begins with an introduction to Wedderburn's theory to establish the structure of semisimple algebras, algebras of quantum mechanical interest, and group algebras. The succeeding chapter deals with Dynkin's theory for the embedding of semisimple complex Lie algebras in semisimple complex Lie algebras. These topics are followed by a rev
Existentially closed locally finite groups
Shelah, Saharon
2011-01-01
We investigate this class of groups originally called ulf (universal locally finite groups) of cardinality lambda . We prove that for every locally finite group G there is a canonical existentially closed extention of the same cardinality, unique up to isomorphism and increasing with G . Also we get, e.g. existence of complete members (i.e. with no non-inner automorphisms) in many cardinals (provably in ZFC). We also get a parallel to stability theory in the sense of investigating definable types.
Hrushovski, Ehud; Peterzil, Ya'acov; Pillay, Anand
2008-04-01
We discuss measures, invariant measures on definable groups, and genericity, often in an NIP (failure of the independence property) environment. We complete the proof of the third author's conjectures relating definably compact groups G in saturated o -minimal structures to compact Lie groups. We also prove some other structural results about such G , for example the existence of a left invariant finitely additive probability measure on definable subsets of G . We finally introduce the new notion of ``compact domination" (domination of a definable set by a compact space) and raise some new conjectures in the o -minimal case.
Dual identity, in-group projection, and out-group feelings among ethnic minority groups
Verkuyten, Maykel; Martinovic, Borja
2016-01-01
This study extends research on dual identity and in-group projection by considering category prototypicality and indispensability, and by focusing on ethnic minority members and their attitudes towards the native majority and minority out-groups. Among a sample of 491 participants of the three large
Remediation of sentence processing deficits in aphasia using a computer-based microworld.
Crerar, M A; Ellis, A W; Dean, E C
1996-01-01
Byng (1988) has argued that some aphasic patients who show problems in sentence comprehension are unable to "map" a syntactic analysis of the sentence form onto the thematic roles specified by the verb or preposition in the sentence. In Byng's study, therapy aimed at improving the mapping process as applied to sentences containing locative prepositions led to improvements not only in the comprehension of such sentences but also in the comprehension of reversible verb sentences. In the present study, 14 aphasic patients were selected for having problems with sentence-picture matching involving reversible verb and preposition sentences. These problems were shown to be stable across three pre-intervention assessments. All assessments were computer-based and involved the matching of written sentences to pictures. A small vocabulary was used in assessment and therapy which involved a "microworld" of three characters (ball, box, and star) which could engage in a limited number of actions and could occupy a limited set of spatial relationships. Before therapy began, all the patients were given an assessment battery which included a 40-item Verb Test and a 40-item Preposition Test. The patients were then divided into two groups, A and B. Group A received two 1-hr sessions of therapy per week for 3 weeks aimed at improving the comprehension of verb sentences, then a second full assessment, followed by the same amount of therapy aimed at improving the comprehension of preposition sentences, and finally a third assessment. Group B received the preposition therapy first, followed by the verb therapy. The therapy involved the patient and therapist interacting with the computer, either assembling pictures to match written sentences ("picture-building mode") or assembling sentences to match pictures ("sentence-building mode"). Group A showed a classical "cross-over" treatment outcome. Performance on treated verb sentences improved during verb therapy and was retained when therapy
NISE (Nursing Inservice Education Group)
Clubine, Marilyn; And Others
1973-01-01
The purpose of the Toronto Inservice Education Group became to meet regularly in order to provide an opportunity to assist and guide those responsible for formulating and carrying out inservice education. Article outlines their objectives. (Author/RK)
Metabolomics and Epidemiology Working Group
The Metabolomics and Epidemiology (MetEpi) Working Group promotes metabolomics analyses in population-based studies, as well as advancement in the field of metabolomics for broader biomedical and public health research.
The Group Treatment of Bulimia.
Weinstein, Harvey M.; Richman, Ann
1984-01-01
Bulimia has become an increasing problem in the college population. This article describes a group psychotherapeutic treatment approach to the problem. A theoretical formulation of the psychodynamics that may underlie the development of bulimia is offered. (Author/DF)
Rothberg, Brian; Collins, Emily
2015-04-01
Service dogs are sanctioned by the Americans with Disabilities Act as having protected rights allowing them to assist owners with disabilities. These dogs are appearing with increasing frequency in healthcare settings, and it is important for healthcare providers to understand the rules and regulations given to service animals and owners. We discuss processes that transpired when a service dog was brought into a psychodynamic psychotherapy group. The purpose of this paper is to highlight the unintended consequences of the Americans with Disabilities Act of 2010 as it concerns service dogs and the impact on the group process. Problems resulting from the introduction of service dogs into therapy groups should be anticipated and explicitly discussed in the course of the group's transactions.
Kloosterman sheaves for reductive groups
Heinloth, Jochen; Yun, Zhiwei
2010-01-01
Deligne constructed a remarkable local system on $\\bP^1-\\{0,\\infty\\}$ attached to a family of Kloosterman sums. Katz calculated its monodromy and asked whether there are Kloosterman sheaves for general reductive groups and which automorphic forms should be attached to these local systems under the Langlands correspondence. Motivated by work of Gross and Frenkel-Gross we find an explicit family of such automorphic forms and even a simple family of automorphic sheaves in the framework of the geometric Langlands program. We use these automorphic sheaves to construct l-adic Kloosterman sheaves for any reductive group in a uniform way, and describe the local and global monodromy of these Kloosterman sheaves. In particular, they give motivic Galois representations with exceptional monodromy groups G_2,F_4,E_7 and E_8. This also gives an example of the geometric Langlands correspondence with wild ramifications for any reductive group.
Climate change and group dynamics
Postmes, Tom
2015-01-01
The characteristics and views of people sceptical about climate change have been analysed extensively. A study now confirms that sceptics in the US have some characteristics of a social movement, but shows that the same group dynamics propel believers
Group valued differential forms revisited
DEFF Research Database (Denmark)
Kock, Anders
We study the relationship between combinatorial group valued differential forms, and classical differential forms with values in the corresponding Lie algebra. In particular, we compare simplicial coboundary and exterior derivative for 1-forms. The results represent strengthenings of results...
Linear algebra and group theory
Smirnov, VI
2011-01-01
This accessible text by a Soviet mathematician features material not otherwise available to English-language readers. Its three-part treatment covers determinants and systems of equations, matrix theory, and group theory. 1961 edition.
Remainder Wheels and Group Theory
Brenton, Lawrence
2008-01-01
Why should prospective elementary and high school teachers study group theory in college? This paper examines applications of abstract algebra to the familiar algorithm for converting fractions to repeating decimals, revealing ideas of surprising substance beneath an innocent facade.
NISE (Nursing Inservice Education Group)
Clubine, Marilyn; And Others
1973-01-01
The purpose of the Toronto Inservice Education Group became to meet regularly in order to provide an opportunity to assist and guide those responsible for formulating and carrying out inservice education. Article outlines their objectives. (Author/RK)
Topological Groups and Dugundji Compacta
Uspenskiĭ, V. V.
1990-02-01
A compact space X is called a Dugundji compactum if for every compact Y containing X, there exists a linear extension operator \\Lambda:\\ C(X)\\to C(Y) which preserves nonnegativity and maps constants into constants. It is known that every compact group is a Dugundji compactum. In this paper we show that compacta connected in a natural way with topological groups enjoy the same property. For example, in each of the following cases, the compact space X is a Dugundji compactum:1) X is a retract of an arbitrary topological group;2) X=\\beta P, where P is a pseudocompact space on which some \\aleph_0-bounded topological group acts transitively and continuously.Bibliography: 57 titles.
The Group Treatment of Bulimia.
Weinstein, Harvey M.; Richman, Ann
1984-01-01
Bulimia has become an increasing problem in the college population. This article describes a group psychotherapeutic treatment approach to the problem. A theoretical formulation of the psychodynamics that may underlie the development of bulimia is offered. (Author/DF)
Genodermatoses in paediatric age group
Directory of Open Access Journals (Sweden)
Kumar Sunil
1996-01-01
Full Text Available Pattern of genodermatoses in paediatric age group was studied. The relative incidence of genodermatoses in paediatric dermatology out patient department was 0.62%. The commonest genodermatoses observed was ichthyosis.
Symbolic dynamics and hyperbolic groups
Coornaert, Michel
1993-01-01
Gromov's theory of hyperbolic groups have had a big impact in combinatorial group theory and has deep connections with many branches of mathematics suchdifferential geometry, representation theory, ergodic theory and dynamical systems. This book is an elaboration on some ideas of Gromov on hyperbolic spaces and hyperbolic groups in relation with symbolic dynamics. Particular attention is paid to the dynamical system defined by the action of a hyperbolic group on its boundary. The boundary is most oftenchaotic both as a topological space and as a dynamical system, and a description of this boundary and the action is given in terms of subshifts of finite type. The book is self-contained and includes two introductory chapters, one on Gromov's hyperbolic geometry and the other one on symbolic dynamics. It is intended for students and researchers in geometry and in dynamical systems, and can be used asthe basis for a graduate course on these subjects.
Climate change and group dynamics
Postmes, Tom
2015-01-01
The characteristics and views of people sceptical about climate change have been analysed extensively. A study now confirms that sceptics in the US have some characteristics of a social movement, but shows that the same group dynamics propel believers
Group valued differential forms revisited
DEFF Research Database (Denmark)
Kock, Anders
We study the relationship between combinatorial group valued differential forms, and classical differential forms with values in the corresponding Lie algebra. In particular, we compare simplicial coboundary and exterior derivative for 1-forms. The results represent strengthenings of results...
Gonzalez-Sanchez, Jon
2010-01-01
Let $w = w(x_1,..., x_n)$ be a word, i.e. an element of the free group $F =$ on $n$ generators $x_1,..., x_n$. The verbal subgroup $w(G)$ of a group $G$ is the subgroup generated by the set $\\{w (g_1,...,g_n)^{\\pm 1} | g_i \\in G, 1\\leq i\\leq n \\}$ of all $w$-values in $G$. We say that a (finite) group $G$ is $w$-maximal if $|G:w(G)|> |H:w(H)|$ for all proper subgroups $H$ of $G$ and that $G$ is hereditarily $w$-maximal if every subgroup of $G$ is $w$-maximal. In this text we study $w$-maximal and hereditarily $w$-maximal (finite) groups.
DEFF Research Database (Denmark)
Mejdell, C.M.; Jorgensen, G.M.; Keeling, L.
2014-01-01
Group housing of horses is not very widespread, despite obvious advantages for their development and mental well-being. One often expressed rationale for this is that horse owners are worried about the risk of injuries due to kicks, bites or being chased into obstacles. To address this concern, we...... developed and validated a scoring system for external injuries in horses to be able to record the severity of a lesion in a standardized and simple way under field conditions. The scoring system has five categories from insignificant loss of hair to severe, life threatening injuries. It was used...... to categorize 1124 injuries in 478 horses. Most of these horses were allocated to groups to study the effect of group composition (i.e. same age or mixed, same gender or mixed, socially stable or unstable groups) on behaviour and injuries. The material included mainly riding and leisure purpose horses...
Essays in the history of Lie groups and algebraic groups
Borel, Armand
2001-01-01
Lie groups and algebraic groups are important in many major areas of mathematics and mathematical physics. We find them in diverse roles, notably as groups of automorphisms of geometric structures, as symmetries of differential systems, or as basic tools in the theory of automorphic forms. The author looks at their development, highlighting the evolution from the almost purely local theory at the start to the global theory that we know today. Starting from Lie's theory of local analytic transformation groups and early work on Lie algebras, he follows the process of globalization in its two main frameworks: differential geometry and topology on one hand, algebraic geometry on the other. Chapters II to IV are devoted to the former, Chapters V to VIII, to the latter. The essays in the first part of the book survey various proofs of the full reducibility of linear representations of \\mathbf{SL}_2{(\\mathbb{C})}, the contributions of H. Weyl to representations and invariant theory for semisimple Lie groups, and con...
Fifteenth LAMPF users group meeting
Energy Technology Data Exchange (ETDEWEB)
Cochran, D.R.F. (comp.)
1982-03-01
The Fifteenth LAMPF Users Group Meeting was held November 2-3, 1981 at the Clinton P. Anderson Meson Physical Facility. The program of papers scheduled to be presented was amended to include a Report from Washington by Clarence R. Richardson, US Department of Energy. The general meeting ended with a round-table working group discussion concerning the Planning for a Kaon Factory. Individual items from the meeting were prepared separately for the data base.
Bosonic colored group field theory
Energy Technology Data Exchange (ETDEWEB)
Ben Geloun, Joseph [Universite Paris XI, Laboratoire de Physique Theorique, Orsay Cedex (France); University of Abomey-Calavi, Cotonou (BJ). International Chair in Mathematical Physics and Applications (ICMPA-UNESCO Chair); Universite Cheikh Anta Diop, Departement de Mathematiques et Informatique, Faculte des Sciences et Techniques, Dakar (Senegal); Magnen, Jacques [Ecole Polytechnique, Centre de Physique Theorique, Palaiseau Cedex (France); Rivasseau, Vincent [Universite Paris XI, Laboratoire de Physique Theorique, Orsay Cedex (France)
2010-12-15
Bosonic colored group field theory is considered. Focusing first on dimension four, namely the colored Ooguri group field model, the main properties of Feynman graphs are studied. This leads to a theorem on optimal perturbative bounds of Feynman amplitudes in the ''ultraspin'' (large spin) limit. The results are generalized in any dimension. Finally, integrating out two colors we write a new representation, which could be useful for the constructive analysis of this type of models. (orig.)
Holonomy groups of Lorentzian manifolds
Galaev, Anton S
2016-01-01
In this paper, a survey of the recent results about the classification of the connected holonomy groups of the Lorentzian manifolds is given. A simplification of the construction of the Lorentzian metrics with all possible connected holonomy groups is obtained. As the applications, the Einstein equation, Lorentzian manifolds with parallel and recurrent spinor fields, conformally flat Walker metrics and the classification of 2-symmetric Lorentzian manifolds are considered.
Managing factoring in banking groups
2006-01-01
On the market for factoring services independent suppliers coexhist with companies affiliated with banking groups. The last ones can be oriented in their decision processes by the policies of their parent company, usually a bank. They could also benefit from synergies among the different units of the group. The main benefits are linked to cost reduction, better skill-based resources allocation and a higher amount of financial coverage. If such interdependencies are found ...
The EWMA Patient Outcome Group
DEFF Research Database (Denmark)
Gottrup, F
2009-01-01
Across Europe, clinical experts in wound care and industry representatives have joined forces to propose recommendations for clinical data collection on chronic wound management. Here, the chair of the group, Finn Gottrup, outlines its main objectives.......Across Europe, clinical experts in wound care and industry representatives have joined forces to propose recommendations for clinical data collection on chronic wound management. Here, the chair of the group, Finn Gottrup, outlines its main objectives....
Directory of Open Access Journals (Sweden)
Kharatti Lal
2015-12-01
Full Text Available This section define a level subring or level ideals obtain a set of necessary and sufficient condition for the equality of two ideals and characterizes field in terms of its fuzzy ideals. It also presents a procedure to construct a fuzzy subrings (fuzzy ideals from any given ascending chain of subring ideal. We prove that the lattice of fuzzy congruence of group G (respectively ring R is isomorphic to the lattice of fuzzy normal subgroup of G (respectively fuzzy ideals of R.In Yuan Boond Wu wangrning investigated the relationship between the fuzzy ideals and the fuzzy congruences on a distributive lattice and obtained that the lattice of fuzzy ideals is isomorphic to the lattice of fuzzy congruences on a generalized Boolean algebra. Fuzzy group theory can be used to describe, symmetries and permutation in nature and mathematics. The fuzzy group is one of the oldest branches of abstract algebra. For example group can be used is classify to all of the forms chemical crystal can take. Group can be used to count the number of non-equivalent objects and permutation or symmetries. For example, the number of different is switching functions of n, variable when permutation of the input are allowed. Beside crystallography and combinatory group have application of quantum mechanics.