Sample records for varying talker identity

  1. Learning Individual Talkers' Structural Preferences

    ERIC Educational Resources Information Center

    Kamide, Yuki

    2012-01-01

    Listeners are often capable of adjusting to the variability contained in individual talkers' (speakers') speech. The vast majority of findings on talker adaptation are concerned with learning the contingency between "phonological" characteristics and talker identity. In contrast, the present study investigates representations at a more abstract…

  2. Learning individual talkers' structural preferences.

    PubMed

    Kamide, Yuki

    2012-07-01

    Listeners are often capable of adjusting to the variability contained in individual talkers' (speakers') speech. The vast majority of findings on talker adaptation are concerned with learning the contingency between phonological characteristics and talker identity. In contrast, the present study investigates representations at a more abstract level - the contingency between syntactic attachment style and talker identity. In a 'visual-world' experiment, participants were exposed to semi-realistic scenes depicting several objects (e.g., an adult man, a young girl, a motorbike, a carousel, and other objects) accompanied by a spoken sentence with a structurally ambiguous relative clause (e.g., 'The uncle of the girl who will ride the motorbike/carousel is from France.' In the context of the scene, 'motorbike' suggested the uncle as the agent of the riding, whereas 'carousel' suggested the girl as the agent). For half the experimental items, one version of the sentence was read by one talker, who always uttered sentences that resolved, pragmatically, to the high attachment (the uncle as the agent), and the other by another talker, who always uttered sentences resolving to the low attachment (the girl as the agent). For the other half of the experimental items, both versions were read by a third talker who produced both high and low attachments. It was found that, after exposure to these stimuli, and for new sentences not heard previously, participants learnt to anticipate the 'appropriate' attachment depending on talker identity (with no attachment preference for the talker who produced both attachment types). The data suggest that listeners can learn the relationship between talker identity and abstract, structural, properties of their speech, and that syntactic attachment decisions in comprehension can reflect sensitivity to talker-specific syntactic style. PMID:22498776

  3. Neural Bases of Talker Normalization

    Microsoft Academic Search

    Patrick C. M. Wong; Howard C. Nusbaum; Steven L. Small

    2004-01-01

    To recognize phonemes across variation in talkers, listeners can use information about vocal characteristics, a process referred to as talker normalization. The present study investigates the cortical mechanisms underlying talker normalization using fMRI. Listeners recognized target words presented in either a spoken list produced by a single talker or a mix of different talkers. It was found that both conditions

  4. On-Line Acoustic and Semantic Interpretation of Talker Information

    ERIC Educational Resources Information Center

    Creel, Sarah C.; Tumlin, Melanie A.

    2011-01-01

    Recent work demonstrates that listeners utilize talker-specific information in the speech signal to inform real-time language processing. However, there are multiple representational levels at which this may take place. Listeners might use acoustic cues in the speech signal to access the talker's identity and information about what they tend to…

  5. Talker Identification across Source Mechanisms: Experiments with Laryngeal and Electrolarynx Speech

    ERIC Educational Resources Information Center

    Perrachione, Tyler K.; Stepp, Cara E.; Hillman, Robert E.; Wong, Patrick C. M.

    2014-01-01

    Purpose: The purpose of this study was to determine listeners' ability to learn talker identity from speech produced with an electrolarynx, explore source and filter differentiation in talker identification, and describe acoustic-phonetic changes associated with electrolarynx use. Method: Healthy adult control listeners learned to identify…

  6. Famous talker effects in spoken word recognition.

    PubMed

    Maibauer, Alisa M; Markis, Teresa A; Newell, Jessica; McLennan, Conor T

    2014-01-01

    Previous work has demonstrated that talker-specific representations affect spoken word recognition relatively late during processing. However, participants in these studies were listening to unfamiliar talkers. In the present research, we used a long-term repetition-priming paradigm and a speeded-shadowing task and presented listeners with famous talkers. In Experiment 1, half the words were spoken by Barack Obama, and half by Hillary Clinton. Reaction times (RTs) to repeated words were shorter than those to unprimed words only when repeated by the same talker. However, in Experiment 2, using nonfamous talkers, RTs to repeated words were shorter than those to unprimed words both when repeated by the same talker and when repeated by a different talker. Taken together, the results demonstrate that talker-specific details can affect the perception of spoken words relatively early during processing when words are spoken by famous talkers. PMID:24366633

  7. Gradient language dominance affects talker learning.

    PubMed

    Bregman, Micah R; Creel, Sarah C

    2014-01-01

    Traditional conceptions of spoken language assume that speech recognition and talker identification are computed separately. Neuropsychological and neuroimaging studies imply some separation between the two faculties, but recent perceptual studies suggest better talker recognition in familiar languages than unfamiliar languages. A familiar-language benefit in talker recognition potentially implies strong ties between the two domains. However, little is known about the nature of this language familiarity effect. The current study investigated the relationship between speech and talker processing by assessing bilingual and monolingual listeners' ability to learn voices as a function of language familiarity and age of acquisition. Two effects emerged. First, bilinguals learned to recognize talkers in their first language (Korean) more rapidly than they learned to recognize talkers in their second language (English), while English-speaking participants showed the opposite pattern (learning English talkers faster than Korean talkers). Second, bilinguals' learning rate for talkers in their second language (English) correlated with age of English acquisition. Taken together, these results suggest that language background materially affects talker encoding, implying a tight relationship between speech and talker representations. PMID:24211437

  8. Neural processing of phonetic and talker information in a tone language: An fMRI study Caicai Zhang1, 2, Kenneth R. Pugh3,4,5, W. Einar Mencl3,5, Peter J. Molfese3, Stephen J. Frost3, James S. Magnuson3 ,4, Gang Peng1, 2, and W. S-Y. Wang1, 2

    E-print Network

    Neural processing of phonetic and talker information in a tone language of Linguistics, Yale University · 1. Interdependence of phonetic and talker processing (Green, Tomiak & Kuhl). - Variability of talker identity (e.g. female/male) in speech stimuli interferes with phonetic classification (e

  9. WindTalker: A P2P-Based Low-Latency Anonymous Communication Network

    NASA Astrophysics Data System (ADS)

    Zhang, Jia; Duan, Haixin; Liu, Wu; Wu, Jianping

    Compared with traditional static anonymous communication networks, the P2P architecture can provide higher anonymity in communication. However, the P2P architecture also leads to more challenges, such as route, stability, trust and so on. In this paper, we present WindTalker, a P2P-based low-latency anonymous communication network. It is a pure decentralized mix network and can provide low-latency services which help users hide their real identity in communication. In order to ensure stability and reliability, WindTalker imports “seed nodes” to help a peer join in the P2P network and the peer nodes can use gossip-based protocol to exchange active information. Moreover, WindTalker uses layer encryption to ensure the information of relayed messages cannot be leaked. In addition, malicious nodes in the network are the major threat to anonymity of P2P anonymous communication, so WindTalker imports a trust mechanism which can help the P2P network exclude malicious nodes and optimize the strategy of peer discovery, tunnel construction, and relaying etc. in anonymous communications. We deploy peer nodes of WindTalker in our campus network to test reliability and analyze anonymity in theory. The network measurement and simulation analysis shows that WindTalker can provide low-latency and reliable anonymous communication services.

  10. Talker-specific auditory imagery during reading

    NASA Astrophysics Data System (ADS)

    Nygaard, Lynne C.; Duke, Jessica; Kawar, Kathleen; Queen, Jennifer S.

    2001-05-01

    The present experiment was designed to determine if auditory imagery during reading includes talker-specific characteristics such as speaking rate. Following Kosslyn and Matt (1977), participants were familiarized with two talkers during a brief prerecorded conversation. One talker spoke at a fast speaking rate and one spoke at a slow speaking rate. During familiarization, participants were taught to identify each talker by name. At test, participants were asked to read two passages and told that either the slow or fast talker wrote each passage. In one condition, participants were asked to read each passage aloud, and in a second condition, they were asked to read each passage silently. Participants pressed a key when they had completed reading the passage, and reading times were collected. Reading times were significantly slower when participants thought they were reading a passage written by the slow talker than when reading a passage written by the fast talker. However, the effects of speaking rate were only present in the reading-aloud condition. Additional experiments were conducted to investigate the role of attention to talker's voice during familiarization. These results suggest that readers may engage in auditory imagery while reading that preserves perceptual details of an author's voice.

  11. Acoustic-phonetic convergence among interacting talkers

    NASA Astrophysics Data System (ADS)

    Pardo, Jennifer S.

    2001-05-01

    Among other sources, acoustic-phonetic variability derives from both personal attributes of a talker and the social structure of a conversational setting. This research begins to detail the effects of such sources by examining the influence of conversational interaction on speech production. A set of talkers provided samples of speech before, during, and after participating in a paired conversational task. Using an A×B paradigm with a separate set of listeners, initial research found that paired talkers became more similar in phonetic repertoire, that this convergence persisted over a short delay, and that the degree of convergence was influenced by both the sex and task role of a talker. This paper presents detailed acoustic and talker scaling analyses from this conversational corpus in an attempt to chart the effects of personal and situational factors on speech variability. [Research supported in part by NIMH Grant No. 5F32MH64995.

  12. Honoring Native American Code Talkers: The Road to the Code Talkers Recognition Act of 2008 (Public Law 110-420)

    ERIC Educational Resources Information Center

    Meadows, William C.

    2011-01-01

    Interest in North American Indian code talkers continues to increase. In addition to numerous works about the Navajo code talkers, several publications on other groups of Native American code talkers--including the Choctaw, Comanche, Hopi, Meskwaki, Canadian Cree--and about code talkers in general have appeared. This article chronicles recent…

  13. Talker variability in audio-visual speech perception.

    PubMed

    Heald, Shannon L M; Nusbaum, Howard C

    2014-01-01

    A change in talker is a change in the context for the phonetic interpretation of acoustic patterns of speech. Different talkers have different mappings between acoustic patterns and phonetic categories and listeners need to adapt to these differences. Despite this complexity, listeners are adept at comprehending speech in multiple-talker contexts, albeit at a slight but measurable performance cost (e.g., slower recognition). So far, this talker variability cost has been demonstrated only in audio-only speech. Other research in single-talker contexts have shown, however, that when listeners are able to see a talker's face, speech recognition is improved under adverse listening (e.g., noise or distortion) conditions that can increase uncertainty in the mapping between acoustic patterns and phonetic categories. Does seeing a talker's face reduce the cost of word recognition in multiple-talker contexts? We used a speeded word-monitoring task in which listeners make quick judgments about target word recognition in single- and multiple-talker contexts. Results show faster recognition performance in single-talker conditions compared to multiple-talker conditions for both audio-only and audio-visual speech. However, recognition time in a multiple-talker context was slower in the audio-visual condition compared to audio-only condition. These results suggest that seeing a talker's face during speech perception may slow recognition by increasing the importance of talker identification, signaling to the listener a change in talker has occurred. PMID:25076919

  14. TALKER DISCRIMINATION BY PRELINGUALLY DEAF CHILDREN WITH COCHLEAR IMPLANTS: PRELIMINARY RESULTS

    PubMed Central

    Cleary, Miranda; Pisoni, David B.

    2012-01-01

    Forty-four school-age children who had used a multichannel cochlear implant (CI) for at least 4 years were tested to assess their ability to discriminate differences between recorded pairs of female voices uttering sentences. Children were asked to respond “same voice” or “different voice” on each trial. Two conditions were examined. In one condition, the linguistic content of the sentence was always held constant and only the talker’s voice varied from trial to trial. In another condition, the linguistic content of the utterance also varied so that to correctly respond “same voice,” the child needed to recognize that two different sentences were spoken by the same talker. Data from normal-hearing children were used to establish that these tasks were well within the capabilities of children without hearing impairment. For the children with CIs, in the “fixed sentence condition” the mean proportion correct was 68%, which, although significantly different from the 50% score expected by chance, suggests that the children with CIs found this discrimination task rather difficult. In the “varied sentence condition,” however, the mean proportion correct was only 57%, indicating that the children were essentially unable to recognize an unfamiliar talker’s voice when the linguistic content of the paired sentences differed. Correlations with other speech and language outcome measures are also reported. PMID:12018337

  15. Relative roles of consonants and vowels in perceiving phonetic versus talker cues in speech

    NASA Astrophysics Data System (ADS)

    Cardillo, Gina; Owren, Michael J.

    2002-05-01

    Perceptual experiments tested whether consonants and vowels differentially contribute to phonetic versus indexical cueing in speech. In 2 experiments, 62 total participants each heard 128 American-English word pairs recorded by 8 male and 8 female talkers. Half the pairs were synonyms, while half were nonsynonyms. Further, half the pairs were words from the same talker, and half from different, same-sex talkers. The first word heard was unaltered, while the second was edited by setting either all vowels (``Consonants-Only'') or all consonants (``Vowels-Only'') to silence. Each participant responded to half Consonants-Only and half Vowels-Only trials, always hearing the unaltered word once and the edited word twice. In experiment 1, participants judged whether the two words had the same or different meanings. Participants in experiment 2 indicated whether the word pairs were from the same or different talkers. Performance was measured as latencies and d values, and indicated significantly greater sensitivity to phonetic content when consonants rather than vowels were heard, but the converse when talker identity was judged. These outcomes suggest important functional differences in the roles played by consonants and vowels in normative speech.

  16. Listening to speech in a background of other talkers: Effects of talker number and noise vocoding

    PubMed Central

    Rosen, Stuart; Souza, Pamela; Ekelund, Caroline; Majeed, Arooj A

    2013-01-01

    Some of the most common interfering background sounds a listener experiences are the sounds of other talkers. In Experiment 1, recognition for natural Institute of Electrical and Electronics Engineers (IEEE) sentences was measured in normal-hearing adults at two fixed signal-to-noise ratios (SNRs) in 16 backgrounds with the same long-term spectrum: unprocessed speech babble (1, 2, 4, 8, and 16 talkers), noise-vocoded versions of the babbles (12 channels), noise modulated with the wide-band envelope of the speech babbles, and unmodulated noise. All talkers were adult males. For a given number of talkers, natural speech was always the most effective masker. The greatest changes in performance occurred as the number of talkers in the maskers increased from 1 to 2 or 4, with small changes thereafter. In Experiment 2, the same targets and maskers (1, 2, and 16 talkers) were used to measure speech reception thresholds (SRTs) adaptively. Periodicity in the target was also manipulated by noise-vocoding, which led to considerably higher SRTs. The greatest masking effect always occurred for the masker type most similar to the target, while the effects of the number of talkers were generally small. Implications are drawn with reference to glimpsing, informational vs energetic masking, overall SNR, and aspects of periodicity. PMID:23556608

  17. The Distribution of Attention Across a Talker's Face

    ERIC Educational Resources Information Center

    Thompson, Laura A.; Malmberg, Jeanne; Goodell, Neil K.; Boring, Ronald L.

    2004-01-01

    In 2 experiments, a novel experimental paradigm investigated how spatial attention is distributed across a talker's face during auditory-visual speech discourse processing. Dots were superimposed onto several talkers' faces for 17-msec durations on the talker's left side, mouth, right side, and eyebrow area. Participants reported the locations of…

  18. The impact of intended emotion on dynamic changes in talker amplitude

    NASA Astrophysics Data System (ADS)

    Wieberg, Kimberly; Hall, Michael D.

    2003-10-01

    Relatively little research has been conducted on auditory affect, and less research has focused on quantifying the nature of potential acoustic cues to emotion. A production study was conducted to address the possibility that one dynamic acoustic variable, talker amplitude, may systematically vary as a function of intended affect. Six talkers (three male, three female) were instructed to produce 200 target words with different emotional valences (e.g., joy versus sadness). Target words were phonetically balanced (PB), and each word was produced within a standard carrier phrase. Temporally specific intensity measurements were recorded for each target word. Descriptively and statistically distinct contours were obtained as a function of intended emotion. Furthermore, talkers differed in the way they produced amplitude contours for each emotion. The perceptual relevance of the observed affect-based differences in amplitude then was evaluated. Average contours for joy and sadness were applied to an emotionally neutral set of (CV) stimuli. Listeners discriminated the resulting contours within a two-alternative forced choice task, and sensitivity was evaluated using signal detection analyses. Implications for the potential role of amplitude in the perception of emotion, as well as for the representation of talker information, in words will be discussed.

  19. When susceptible-infectious-susceptible contagion meets time-varying networks with identical infectivity

    NASA Astrophysics Data System (ADS)

    Zhang, Yi-Qing; Li, Xiang

    2014-10-01

    Transmission of infectious diseases among populations can be modelled as contagion processes on contact networks. These contact networks are highly evolved in time and are represented by time-varying networks. The agents in contagion processes may have finite infectivity independently of their connectivity. Here we present an analytical framework of the susceptible-infectious-susceptible contagion process on time-varying networks, namely activity-driven networks with identical infectivity. We derive the critical epidemic thresholds and immunization thresholds as a function of infectivity, and prove that targeted immunizations are more efficient than random immunizations independently of the infectivity. We validate our conclusions in a large-scale human indoor interaction data set. Finally, we assess the effects of finite size.

  20. Intelligibility of normal speech I: Global and fine-grained acoustic-phonetic talker characteristics

    Microsoft Academic Search

    Ann R. Bradlow; Gina M. Torretta; David B. Pisoni

    1996-01-01

    This study used a multi-talker database containing intelligibility scores for 2000 sentences (20 talkers, 100 sentences), to identify talker-related correlates of speech intelligibility. We first investigated \\

  1. Perception of talker similarity by normal-hearing children and hearing-impaired children with cochlear implants

    NASA Astrophysics Data System (ADS)

    Cleary, Miranda

    2002-05-01

    This project investigated judgments of perceptual similarity, specifically, how similar do two sentences need to be in terms of fundamental and formant frequencies for children to categorize both utterances as spoken by the same talker? Same-different judgments were obtained using an adaptive testing procedure in which the similarity of voice pairs was systematically varied. Participants included five-year-old normal-hearing children and prelingually deafened school-age cochlear implant users with 2+ years of implant experience. Stimuli consisted of natural sentence-length utterances of a fixed syntactic form processed and resynthesized to form a stimulus continuum of differentially similar-sounding voices. Auditory comprehension skills were measured using materials from the same stimulus set. Comprehension was also measured against a competing talker masker. An adaptive testing procedure adjusted the similarity of masker voice to target voice according to each child's performance. The probability of ``same talker'' judgments is reported for each group of children as a function of pitch difference size. Preliminary results indicate a commonality in the auditory skills necessary for both talker discrimination and auditory comprehension. The relationship between discrimination of similar-sounding talkers and the ability to perceptually separate voices will also be discussed. [Work supported by NIH-NIDCD.

  2. The relationship of the whole genome sequence identity to DNA hybridization varies between genera of prokaryotes.

    PubMed

    Li, Xun; Huang, Yongjie; Whitman, William B

    2015-01-01

    In the original proposal of Wayne et al. (Int J Syst Bacteriol 37:463-464, 1987), two measures of genetic relatedness were proposed to set the boundary for prokaryotic species. The first was the change in the melting temperature (?Tm) of heteroduplex DNA and the second was the extent of DNA-DNA hybridization (DDH). While this approach was justified given the experimental error inherent in these methods, genomic sequencing has the potential to measure both parameters with great precision. The average nucleotide identity (ANIb), a surrogate for the ?Tm, and the calculated DDH (cDDH) were determined from the complete genomes of representatives of 17 genera of prokaryotes. When the ANIb was >75 %, the ratio (100-cDDH)/(100-ANIb) was 3.69 ± 0.93 (± SD) and varied from about 2.35 to 4.59 between genera. The differences among genera was highly significant (p < 0.001) but not correlated with specific phylogenetic or physiological groups. Moreover, the ANIm was a poor measure of ANIb when ANIb was <75 %. Because the ANIb and cDDH provide different measures of relatedness, it is no longer appropiate to consider both when delineating species. For these reasons, measures of relatedness based upon sequence identity should be used for delineating species in the future. PMID:25370015

  3. Differences in Talker Recognition by Preschoolers and Adults

    ERIC Educational Resources Information Center

    Creel, Sarah C.; Jimenez, Sofia R.

    2012-01-01

    Talker variability in speech influences language processing from infancy through adulthood and is inextricably embedded in the very cues that identify speech sounds. Yet little is known about developmental changes in the processing of talker information. On one account, children have not yet learned to separate speech sound variability from…

  4. A Time Varying Evaluation of Identity Theory and Father Involvement for Full Custody, Shared Custody, and No Custody Divorced Fathers

    PubMed Central

    DeGarmo, David S.

    2010-01-01

    This study tested identity theory models of father involvement for 230 divorced fathers of young children aged 4 to 11 followed over 18 months. Research questions were (1) Do measures of identity salience and centrality of the fathering role predict fathering involvement over time? (2) Does father involvement predict fathering identity over time? (3) Does father custody moderate these relationships? Involvement was assessed as contact frequency, number of father-child activities, and positive involvement observed during father-child interaction. Comparisons showed that the quantity of involvement differed by custody but there were few differences in the quality of involvement. Fathers did not exhibit significant mean decreases in involvement and custodial groups did not differ in the growth rates for involvement nor identity measures. However, there were significant individual differences in growth rates, meaning there was variance in fathers increasing and decreasing in measures over time. Time 1 father identities, measured as salience and centrality, predicted days per month, overnights per month, and father child activities over time. Time-varying predictors suggested that identities were more predictive of growth in involvement than vice versa although father involvement predicted salience and primarily centrality. Implications for practice and future research are discussed. PMID:20617120

  5. A Time Varying Evaluation of Identity Theory and Father Involvement for Full Custody, Shared Custody, and No Custody Divorced Fathers.

    PubMed

    Degarmo, David S

    2010-01-01

    This study tested identity theory models of father involvement for 230 divorced fathers of young children aged 4 to 11 followed over 18 months. Research questions were (1) Do measures of identity salience and centrality of the fathering role predict fathering involvement over time? (2) Does father involvement predict fathering identity over time? (3) Does father custody moderate these relationships? Involvement was assessed as contact frequency, number of father-child activities, and positive involvement observed during father-child interaction. Comparisons showed that the quantity of involvement differed by custody but there were few differences in the quality of involvement. Fathers did not exhibit significant mean decreases in involvement and custodial groups did not differ in the growth rates for involvement nor identity measures. However, there were significant individual differences in growth rates, meaning there was variance in fathers increasing and decreasing in measures over time. Time 1 father identities, measured as salience and centrality, predicted days per month, overnights per month, and father child activities over time. Time-varying predictors suggested that identities were more predictive of growth in involvement than vice versa although father involvement predicted salience and primarily centrality. Implications for practice and future research are discussed. PMID:20617120

  6. Overnight consolidation promotes generalization across talkers in the identification of nonnative speech sounds.

    PubMed

    Earle, F Sayako; Myers, Emily B

    2015-01-01

    This investigation explored the generalization of phonetic learning across talkers following training on a nonnative (Hindi dental and retroflex) contrast. Participants were trained in two groups, either in the morning or in the evening. Discrimination and identification performance was assessed in the trained talker and an untrained talker three times over 24?h following training. Results suggest that overnight consolidation promotes generalization across talkers in identification, but not necessarily discrimination, of nonnative speech sounds. PMID:25618106

  7. Age-Related Changes to Spectral Voice Characteristics Affect Judgments of Prosodic, Segmental, and Talker Attributes for Child and Adult Speech

    ERIC Educational Resources Information Center

    Dilley, Laura C.; Wieland, Elizabeth A.; Gamache, Jessica L.; McAuley, J. Devin; Redford, Melissa A.

    2013-01-01

    Purpose: As children mature, changes in voice spectral characteristics co-vary with changes in speech, language, and behavior. In this study, spectral characteristics were manipulated to alter the perceived ages of talkers' voices while leaving critical acoustic-prosodic correlates intact, to determine whether perceived age differences were…

  8. Differential Neural Contributions to Native-and Foreign-Language Talker Identification

    E-print Network

    Gabrieli, John

    's ability to integrate information from voice and speech perception. Talker- identification abilities that is realized in the auditory modality as voice recognition or talker identification. Despite the socialDifferential Neural Contributions to Native- and Foreign-Language Talker Identification Tyler K

  9. Reading Voices and Hearing Text: Talker-Specific Auditory Imagery in Reading

    ERIC Educational Resources Information Center

    Alexander, Jessica D.; Nygaard, Lynne C.

    2008-01-01

    A series of experiments was conducted to determine if linguistic representations accessed during reading include auditory imagery for characteristics of a talker's voice. In 3 experiments, participants were familiarized with two talkers during a brief prerecorded conversation. One talker spoke at a fast speaking rate, and one spoke at a slow…

  10. Courtship attention in sagebrush lizards varies with male identity and female reproductive state

    Microsoft Academic Search

    Erica Davis; Emõ ´ lia; P. Martins

    2008-01-01

    Previous experiments suggest that males spend more time with the more receptive of 2 novel females or the one with the higher fitness potential. However, males often court individual females repeatedly over a season; for example, male lizards sequentially visit familiar females as they patrol territorial boundaries. It may benefit males to vary display intensity as they move between multiple

  11. Courtship attention in sagebrush lizards varies with male identity and female reproductive state.

    PubMed

    Ruiz, Mayté; Davis, Erica; Martins, Emília P

    2008-11-01

    Previous experiments suggest that males spend more time with the more receptive of 2 novel females or the one with the higher fitness potential. However, males often court individual females repeatedly over a season; for example, male lizards sequentially visit familiar females as they patrol territorial boundaries. It may benefit males to vary display intensity as they move between multiple females. In this study, we explored the factors influencing amount of male courtship to familiar females in the sagebrush lizard, Sceloporus graciosus. We tested whether males vary the amount of courtship exhibited due to individual differences among males, female reproductive state, or female fitness potential. Each male was allowed to interact separately, but repeatedly, with 2 females until both females laid eggs. Male courtship behavior with each of the 2 females was assayed at an intermediate point, after 3 weeks of interaction. We found that individual differences among males were considerable. The number of male courtship displays was also positively correlated with female latency to lay eggs, with males displaying more often toward females with eggs that had not yet been fertilized. Courtship behavior was not well predicted by the number of eggs laid or by female width, both measures of female quality. Thus, male S. graciosus appear to alter courtship intensity more in response to signals of female reproductive state than in response to variation in potential female fitness. PMID:19458780

  12. Courtship attention in sagebrush lizards varies with male identity and female reproductive state

    PubMed Central

    Davis, Erica; Martins, Emília P.

    2008-01-01

    Previous experiments suggest that males spend more time with the more receptive of 2 novel females or the one with the higher fitness potential. However, males often court individual females repeatedly over a season; for example, male lizards sequentially visit familiar females as they patrol territorial boundaries. It may benefit males to vary display intensity as they move between multiple females. In this study, we explored the factors influencing amount of male courtship to familiar females in the sagebrush lizard, Sceloporus graciosus. We tested whether males vary the amount of courtship exhibited due to individual differences among males, female reproductive state, or female fitness potential. Each male was allowed to interact separately, but repeatedly, with 2 females until both females laid eggs. Male courtship behavior with each of the 2 females was assayed at an intermediate point, after 3 weeks of interaction. We found that individual differences among males were considerable. The number of male courtship displays was also positively correlated with female latency to lay eggs, with males displaying more often toward females with eggs that had not yet been fertilized. Courtship behavior was not well predicted by the number of eggs laid or by female width, both measures of female quality. Thus, male S. graciosus appear to alter courtship intensity more in response to signals of female reproductive state than in response to variation in potential female fitness. PMID:19458780

  13. Experience with a Talker Can Transfer Across Modalities to Facilitate Lipreading

    PubMed Central

    Sanchez, Kauyumari; Dias, James W.; Rosenblum, Lawrence D.

    2013-01-01

    Rosenblum, Miller, and Sanchez (2007) found that participants first trained to lipread a particular talker were then better able to perceive the auditory speech of that same talker, compared to that of a novel talker. This suggests that the talker experience a perceiver gains in one sensory modality can be transferred to another modality to make that speech easier to perceive. An experiment was conducted to examine whether this cross-sensory transfer of talker experience could occur: 1) from auditory to lipread speech; 2) with subjects not screened for adequate lipreading skill; 3) when both a familiar and unfamiliar talker are presented during lipreading; and 4) for both old (presentation set) and new words. Subjects were first asked to identify a set of words from a talker. They were then asked to perform a lipreading task from two faces, one of which was of the same talker they heard in the first phase of the experiment. Results revealed that subjects who lipread from the same talker they had heard performed better than those who lipead a different talker, regardless of whether the words were old or new. These results add further evidence that learning of amodal talker information can facilitate speech perception across modalities and also suggest that this information is not restricted to previously heard words. PMID:23955059

  14. Experience with a talker can transfer across modalities to facilitate lipreading.

    PubMed

    Sanchez, Kauyumari; Dias, James W; Rosenblum, Lawrence D

    2013-10-01

    Rosenblum, Miller, and Sanchez (Psychological Science, 18, 392-396, 2007) found that subjects first trained to lip-read a particular talker were then better able to perceive the auditory speech of that same talker, as compared with that of a novel talker. This suggests that the talker experience a perceiver gains in one sensory modality can be transferred to another modality to make that speech easier to perceive. An experiment was conducted to examine whether this cross-sensory transfer of talker experience could occur (1) from auditory to lip-read speech, (2) with subjects not screened for adequate lipreading skill, (3) when both a familiar and an unfamiliar talker are presented during lipreading, and (4) for both old (presentation set) and new words. Subjects were first asked to identify a set of words from a talker. They were then asked to perform a lipreading task from two faces, one of which was of the same talker they heard in the first phase of the experiment. Results revealed that subjects who lip-read from the same talker they had heard performed better than those who lip-read a different talker, regardless of whether the words were old or new. These results add further evidence that learning of amodal talker information can facilitate speech perception across modalities and also suggest that this information is not restricted to previously heard words. PMID:23955059

  15. Talker familiarity and spoken word recognition in school-age children.

    PubMed

    Levi, Susannah V

    2015-07-01

    Research with adults has shown that spoken language processing is improved when listeners are familiar with talkers' voices, known as the familiar talker advantage. The current study explored whether this ability extends to school-age children, who are still acquiring language. Children were familiarized with the voices of three German-English bilingual talkers and were tested on the speech of six bilinguals, three of whom were familiar. Results revealed that children do show improved spoken language processing when they are familiar with the talkers, but this improvement was limited to highly familiar lexical items. This restriction of the familiar talker advantage is attributed to differences in the representation of highly familiar and less familiar lexical items. In addition, children did not exhibit accent-general learning; despite having been exposed to German-accented talkers during training, there was no improvement for novel German-accented talkers. PMID:25159173

  16. Plant mortality varies with arbuscular mycorrhizal fungal species identities in a self-thinning population

    PubMed Central

    Zhang, Qian; Tang, Jianjun; Chen, Xin

    2011-01-01

    Because arbuscular mycorrhizal fungal (AMF) species differ in stimulating the growth of particular host plant species, AMF species may vary in their effects on plant intra-specific competition and the self-thinning process. We tested this hypothesis using a microcosm experiment with Medicago sativa L. as a model plant population and four AMF species. Our results showed that the AMF species Glomus diaphanum stimulated host plant growth more than the other three AMF species did when the plants were grown individually. Glomus diaphanum also induced the highest rate of mortality in the self-thinning plant populations. We also found a positive correlation between mortality and growth response to colonization. Our results demonstrate that AMF species can affect plant mortality and the self-thinning process by affecting plant growth differently. PMID:21147829

  17. Better-ear glimpsing efficiency with symmetrically-placed interfering talkers.

    PubMed

    Brungart, Douglas S; Iyer, Nandini

    2012-10-01

    In listening tasks where a target speech signal is spatially separated from a masking voice, listeners can often gain a substantial advantage in performance by attending to the ear with the better signal-to-noise ratio (SNR). However, this better-ear strategy becomes much more complicated when a target talker located in front of the listener is masked by interfering talkers positioned at symmetric locations to the left and right of the target. When this happens, there are no long-term SNR advantages at either ear and the only binaural SNR advantages available are the result of complicated better-ear glimpses that vary as a function of frequency and rapidly switch back and forth between the two ears according to the natural fluctuations in the relative levels of the two masking voices. In this study, a signal processing technique was used to take the better-ear glimpses that would ordinarily be randomly distributed across the two ears in a binaural speech signal and move them all into the same ear. This resulted in a monaural signal that contained all the information available to an ideal listener using an optimal binaural glimpsing strategy. Speech intelligibility was measured with these optimized monaural stimuli and compared to performance with unprocessed binaural speech stimuli. Performance was similar in these two conditions, suggesting that listeners with normal hearing are able to efficiently extract information from better-ear glimpses that fluctuate rapidly across frequency and across the two ears. PMID:23039448

  18. Target identification using relative level in multi-talker listening.

    PubMed

    Kitterick, Pádraig T; Clarke, Emmet; O'Shea, Charlotte; Seymour, Josephine; Summerfield, A Quentin

    2013-05-01

    Previous studies have suggested that listeners can identify words spoken by a target talker amidst competing talkers if they are distinguished by their spatial location or vocal characteristics. This "direct" identification of individual words is distinct from an "indirect" identification based on an association with other words (call-signs) that uniquely label the target. The present study assessed listeners' ability to use differences in presentation level between a target and overlapping maskers to identify target words. A new sentence was spoken every 800?ms by an unpredictable talker from an unpredictable location. Listeners reported color and number words in a target sentence distinguished by a unique call-sign. When masker levels were fixed, target words could be identified directly based on their relative level. Speech-reception thresholds (SRTs) were low (-12.9 dB) and were raised by 5 dB when direct identification was disrupted by randomizing masker levels. Thus, direct identification is possible using relative level. The underlying psychometric functions were monotonic even when relative level was a reliable cue. In a further experiment, indirect identification was prevented by removing the unique call-sign cue. SRTs did not change provided that other cues were available to identify target words directly. Thus, direct identification is possible without indirect identification. PMID:23654395

  19. Perception of speech produced by native and nonnative talkers by listeners with normal hearing and listeners with cochlear implants.

    PubMed

    Ji, Caili; Galvin, John J; Chang, Yi-ping; Xu, Anting; Fu, Qian-Jie

    2014-04-01

    PURPOSE The aim of this study was to evaluate the understanding of English sentences produced by native (English) and nonnative (Spanish) talkers by listeners with normal hearing (NH) and listeners with cochlear implants (CIs). METHOD Sentence recognition in noise was measured in adult subjects with CIs and subjects with NH, all of whom were native talkers of American English. Test sentences were from the Hearing in Noise Test (HINT) database and were produced in English by four native and eight nonnative talkers. Subjects also rated the intelligibility and accent for each talker. RESULTS The speech recognition thresholds in noise of subjects with CIs and subjects with NH were 4.23 dB and 1.32 dB poorer with nonnative talkers than with native talkers, respectively. Performance was significantly correlated with talker intelligibility and accent ratings for subjects with CIs but only correlated with talker intelligibility ratings for subjects with NH. For all subjects, performance with individual nonnative talkers was significantly correlated with talkers' number of years of residence in the United States. CONCLUSION CI users exhibited a larger deficit in speech understanding with nonnative talkers than did subjects with NH, relative to native talkers. Nonnative talkers' experience with native culture contributed strongly to speech understanding in noise, intelligibility ratings, and accent ratings of both listeners with NH and listeners with CIs. PMID:24686901

  20. Effects of Talker and Token Variability on Perceptual Learning of Dialect Categories

    E-print Network

    Edinburgh, University of

    variability in training materials facilitates this perceptual learning of dialect categories. · HoweverEffects of Talker and Token Variability on Perceptual Learning of Dialect Categories John K. Pate with word-length utterances to classify unfamiliar talkers by regional dialect? 2. Procedure · Two phases: 1

  1. INCREASED LEFT-HEMISPHERE CONTRIBUTION TO NATIVE-VERSUS FOREIGN-LANGUAGE TALKER IDENTIFICATION

    E-print Network

    Gabrieli, John

    between speech- and voice-perception systems facilitates talker identification in one's native language [2INCREASED LEFT-HEMISPHERE CONTRIBUTION TO NATIVE- VERSUS FOREIGN-LANGUAGE TALKER IDENTIFICATION of human listeners' ability to identify speakers by voice have revealed a reliable language

  2. Influence of Phonotactic Probability/Neighbourhood Density on Lexical Learning in Late Talkers

    ERIC Educational Resources Information Center

    MacRoy-Higgins, Michelle; Schwartz, Richard G.; Shafer, Valerie L.; Marton, Klara

    2013-01-01

    Background: Toddlers who are late talkers demonstrate delays in phonological and lexical skills. However, the influence of phonological factors on lexical acquisition in toddlers who are late talkers has not been examined directly. Aims: To examine the influence of phonotactic probability/neighbourhood density on word learning in toddlers who were…

  3. Assertive and Responsive Conversational Skills of Italian-Speaking Late Talkers

    ERIC Educational Resources Information Center

    Bonifacio, Serena; Girolametto, Luigi; Bulligan, Manuela; Callegari, Monica; Vignola, Sandra; Zocconi, Elisabetta

    2007-01-01

    Background: Previous research on the pragmatic abilities of late talkers at 24 months of age indicates that they have difficulties initiating conversational interactions, but possess intact responsiveness skills. This study uses a parent-administered questionnaire for evaluating the conversational skills of late talkers and suggesting pragmatic…

  4. Hemispheric differences in specificity effects in talker identification.

    PubMed

    González, Julio; Cervera-Crespo, Teresa; McLennan, Conor T

    2010-11-01

    In the visual domain, Marsolek and colleagues (1999, 2008) have found support for two dissociable and parallel neural subsystems underlying object and shape recognition: an abstract-category subsystem that operates more effectively in the left cerebral hemisphere (LH), and a specific-exemplar subsystem that operates more effectively in the right cerebral hemisphere (RH). Evidence of this asymmetry has been observed in priming specificity for linguistic (words, pseudoword forms) and nonlinguistic (objects) stimuli. In the auditory domain, the authors previously found hemispheric asymmetries in priming effects for linguistic (spoken words) and nonlinguistic (environmental sounds) stimuli. In the present study, the same asymmetrical pattern was observed in talker identification by means of two long-term repetition-priming experiments. Both experiments consisted of a familiarization phase and a final talker identification test phase, using sentences as stimuli. The results showed that specificity effects (an advantage for same-sentence priming, relative to different-sentence priming) emerged when the target stimuli were presented to the left ear (RH), but not when the target stimuli were presented to the right ear (LH). Taken together, this consistent asymmetrical pattern of data from both domains-visual and auditory-may be indicative of a more general property of the human perceptual processing system. Theoretical implications are discussed. PMID:21097868

  5. Effect of number of masking talkers and auditory priming on informational masking in speech recognition

    NASA Astrophysics Data System (ADS)

    Freyman, Richard L.; Balakrishnan, Uma; Helfer, Karen S.

    2004-05-01

    Three experiments investigated factors that influence the creation of and release from informational masking in speech recognition. The target stimuli were nonsense sentences spoken by a female talker. In experiment 1 the masker was a mixture of three, four, six, or ten female talkers, all reciting similar nonsense sentences. Listeners' recognition performance was measured with both target and masker presented from a front loudspeaker (F-F) or with a masker presented from two loudspeakers, with the right leading the front by 4 ms (F-RF). In the latter condition the target and masker appear to be from different locations. This aids recognition performance for one- and two-talker maskers, but not for noise. As the number of masking talkers increased to ten, the improvement in the F-RF condition diminished, but did not disappear. The second experiment investigated whether hearing a preview (prime) of the target sentence before it was presented in masking improved recognition for the last key word, which was not included in the prime. Marked improvements occurred only for the F-F condition with two-talker masking, not for continuous noise or F-RF two-talker masking. The third experiment found that the benefit of priming in the F-F condition was maintained if the prime sentence was spoken by a different talker or even if it was printed and read silently. These results suggest that informational masking can be overcome by factors that improve listeners' auditory attention toward the target.

  6. Age-related changes in talker recognition with reduced spectral cues.

    PubMed

    Vongpaisal, Tara; Trehub, Sandra E; Glenn Schellenberg, E; van Lieshout, Pascal

    2012-01-01

    Temporal information provided by cochlear implants enables successful speech perception in quiet, but limited spectral information precludes comparable success in voice perception. Talker identification and speech decoding by young hearing children (5-7 yr), older hearing children (10-12 yr), and hearing adults were examined by means of vocoder simulations of cochlear implant processing. In Experiment 1, listeners heard vocoder simulations of sentences from a man, woman, and girl and were required to identify the talker from a closed set. Younger children identified talkers more poorly than older listeners, but all age groups showed similar benefit from increased spectral information. In Experiment 2, children and adults provided verbatim repetition of vocoded sentences from the same talkers. The youngest children had more difficulty than older listeners, but all age groups showed comparable benefit from increasing spectral resolution. At comparable levels of spectral degradation, performance on the open-set task of speech decoding was considerably more accurate than on the closed-set task of talker identification. Hearing children's ability to identify talkers and decode speech from spectrally degraded material sheds light on the difficulty of these domains for child implant users. PMID:22280611

  7. Message and Talker Identification in Older Adults: Effects of Task, Distinctiveness of the Talkers' Voices, and Meaningfulness of the Competing Message

    ERIC Educational Resources Information Center

    Rossi-Katz, Jessica; Arehart, Kathryn Hoberg

    2009-01-01

    Purpose: In this study, the authors investigated (a) the effects of task, vocal distinctiveness of the competing talkers, and meaningfulness of the competitor on older listeners' identification of a target in the presence of competition and (b) the factors that are most predictive of the variability in target identification observed among older…

  8. Early and late talkers: school-age language, literacy and neurolinguistic differences

    PubMed Central

    Frost, Stephen J.; Mencl, William Einar; Fulbright, Robert K.; Landi, Nicole; Grigorenko, Elena; Jacobsen, Leslie; Pugh, Kenneth R.

    2010-01-01

    Early language development sets the stage for a lifetime of competence in language and literacy. However, the neural mechanisms associated with the relative advantages of early communication success, or the disadvantages of having delayed language development, are not well explored. In this study, 174 elementary school-age children whose parents reported that they started forming sentences ‘early’, ‘on-time’ or ‘late’ were evaluated with standardized measures of language, reading and spelling. All oral and written language measures revealed consistent patterns for ‘early’ talkers to have the highest level of performance and ‘late’ talkers to have the lowest level of performance. We report functional magnetic resonance imaging data from a subset of early, on-time and late talkers matched for age, gender and performance intelligence quotient that allows evaluation of neural activation patterns produced while listening to and reading real words and pronounceable non-words. Activation in bilateral thalamus and putamen, and left insula and superior temporal gyrus during these tasks was significantly lower in late talkers, demonstrating that residual effects of being a late talker are found not only in behavioural tests of oral and written language, but also in distributed cortical-subcortical neural circuits underlying speech and print processing. Moreover, these findings suggest that the age of functional language acquisition can have long-reaching effects on reading and language behaviour, and on the corresponding neurocircuitry that supports linguistic function into the school-age years. PMID:20826428

  9. Differential neural contributions to native- and foreign-language talker identification

    PubMed Central

    Perrachione, Tyler K.; Pierrehumbert, Janet B.; Wong, Patrick C.M.

    2009-01-01

    Humans are remarkably adept at identifying individuals by the sound of their voice, a behavior supported by the nervous system’s ability to integrate information from voice and speech perception. Talker-identification abilities are significantly impaired when listeners are unfamiliar with the language being spoken. Recent behavioral studies describing the language-familiarity effect implicate functionally integrated neural systems for speech and voice perception, yet specific neuroscientific evidence demonstrating the basis for such integration has not yet been shown. Listeners in the present study learned to identify voices speaking a familiar (native) or unfamiliar (foreign) language. The talker-identification performance of neural circuitry in each cerebral hemisphere was assessed using dichotic listening. To determine the relative contribution of circuitry in each hemisphere to ecological (binaural) talker identification abilities, we compared the predictive capacity of dichotic performance on binaural performance across languages. We found listeners’ right-ear (left hemisphere) performance to be a better predictor of overall accuracy in their native language than a foreign one. The enhanced predictive capacity of the classically language-dominant left-hemisphere on overall talker-identification accuracy demonstrates functionally integrated neural systems for speech and voice perception during natural talker identification. PMID:19968445

  10. Estimation of Talker's Head Orientation Based on Discrimination of the Shape of Cross-power Spectrum Phase Coefficients

    E-print Network

    Takiguchi, Tetsuya

    localization and head orientation estimation experiments performed in a real environ- ment. Index Terms coefficients 1. Introduction For human-human or human-computer interaction, the talker's location on the talker's head orientation. Other approaches focus on the radiation pattern of the magni- tude for each

  11. Multi-talker background and semantic priming effect

    PubMed Central

    Dekerle, Marie; Boulenger, Véronique; Hoen, Michel; Meunier, Fanny

    2014-01-01

    The reported studies have aimed to investigate whether informational masking in a multi-talker background relies on semantic interference between the background and target using an adapted semantic priming paradigm. In 3 experiments, participants were required to perform a lexical decision task on a target item embedded in backgrounds composed of 1–4 voices. These voices were Semantically Consistent (SC) voices (i.e., pronouncing words sharing semantic features with the target) or Semantically Inconsistent (SI) voices (i.e., pronouncing words semantically unrelated to each other and to the target). In the first experiment, backgrounds consisted of 1 or 2 SC voices. One and 2 SI voices were added in Experiments 2 and 3, respectively. The results showed a semantic priming effect only in the conditions where the number of SC voices was greater than the number of SI voices, suggesting that semantic priming depended on prime intelligibility and strategic processes. However, even if backgrounds were composed of 3 or 4 voices, reducing intelligibility, participants were able to recognize words from these backgrounds, although no semantic priming effect on the targets was observed. Overall this finding suggests that informational masking can occur at a semantic level if intelligibility is sufficient. Based on the Effortfulness Hypothesis, we also suggest that when there is an increased difficulty in extracting target signals (caused by a relatively high number of voices in the background), more cognitive resources were allocated to formal processes (i.e., acoustic and phonological), leading to a decrease in available resources for deeper semantic processing of background words, therefore preventing semantic priming from occurring. PMID:25400572

  12. Children with Specific Language Impairment and Resolved Late Talkers: Working Memory Profiles at 5 Years

    ERIC Educational Resources Information Center

    Petruccelli, Nadia; Bavin, Edith L.; Bretherton, Lesley

    2012-01-01

    Purpose: The evidence of a deficit in working memory in specific language impairment (SLI) is of sufficient magnitude to suggest a primary role in developmental language disorder. However, little research has investigated memory in late talkers who recover from their early delay. Drawing on a longitudinal, community sample, this study compared the…

  13. Talker and Lexical Effects on Audiovisual Word Recognition by Adults with Cochlear Implants.

    ERIC Educational Resources Information Center

    Kaiser, Adam R.; Kirk, Karen Iler; Lachs, Lorin; Pisoni, David B.

    2003-01-01

    A study examined how 20 adults with postlingual deafness with cochlear implants combined visual information from lip reading with auditory cues in an open-set word recognition task. Word recognition performance was highest for audiovisual presentation followed by auditory-only and then visual-only stimulus presentation, and for single-talker

  14. The Effect of Talker and Intonation Variability on Speech Perception in Noise in Children with Dyslexia

    ERIC Educational Resources Information Center

    Hazan, Valerie; Messaoud-Galusi, Souhila; Rosen, Stuart

    2013-01-01

    Purpose: In this study, the authors aimed to determine whether children with dyslexia (hereafter referred to as "DYS children") are more affected than children with average reading ability (hereafter referred to as "AR children") by talker and intonation variability when perceiving speech in noise. Method: Thirty-four DYS and 25 AR children were…

  15. Differential Neural Contributions to Native- and Foreign-Language Talker Identification

    ERIC Educational Resources Information Center

    Perrachione, Tyler K.; Pierrehumbert, Janet B.; Wong, Patrick C. M.

    2009-01-01

    Humans are remarkably adept at identifying individuals by the sound of their voice, a behavior supported by the nervous system's ability to integrate information from voice and speech perception. Talker-identification abilities are significantly impaired when listeners are unfamiliar with the language being spoken. Recent behavioral studies…

  16. Simple Displays of Talker Location Improve Voice Identification Performance in Multitalker, Spatialized Audio Environments

    Microsoft Academic Search

    Ryan M. Kilgore

    2009-01-01

    Objective: The aim of this study was to assess the voice identification benefits of visual depictions of the relative locations of spatialized talkers in a serial listening task. Background: Although spatialized audio is known to improve speech intelligibility and voice identification accuracy within multitalker environments, prior studies have not found any additional benefit for augmenting spatialized audio with visual depictions

  17. HMM-BASED AND SVM-BASED RECOGNITION OF THE SPEECH OF TALKERS WITH SPASTIC DYSARTHRIA

    E-print Network

    Hasegawa-Johnson, Mark

    This paper studies the speech of three talkers with spastic dysarthria caused by cerebral palsy. All three of disabilities such as, but not limited to, cerebral palsy and traumatic brain injury [1]. Adults with cerebral palsy are able to perform most of the tasks required of a college student, including reading, listening

  18. Comparison of bimodal and bilateral cochlear implant users on speech recognition with competing talker, music perception, affective prosody discrimination and talker identification

    PubMed Central

    Cullington, Helen E; Zeng, Fan-Gang

    2010-01-01

    Objectives Despite excellent performance in speech recognition in quiet, most cochlear implant users have great difficulty with speech recognition in noise, music perception, identifying tone of voice, and discriminating different talkers. This may be partly due to the pitch coding in cochlear implant speech processing. Most current speech processing strategies use only the envelope information; the temporal fine structure is discarded. One way to improve electric pitch perception is to utilize residual acoustic hearing via a hearing aid on the non-implanted ear (bimodal hearing). This study aimed to test the hypothesis that bimodal users would perform better than bilateral cochlear implant users on tasks requiring good pitch perception. Design Four pitch-related tasks were used: Hearing in Noise Test (HINT) sentences spoken by a male talker with a competing female, male, or child talker. Montreal Battery of Evaluation of Amusia. This is a music test with six subtests examining pitch, rhythm and timing perception, and musical memory. Aprosodia Battery. This has five subtests evaluating aspects of affective prosody and recognition of sarcasm. Talker identification using vowels spoken by ten different talkers (three male, three female, two boys, and two girls). Bilateral cochlear implant users were chosen as the comparison group. Thirteen bimodal and thirteen bilateral adult cochlear implant users were recruited; all had good speech perception in quiet. Results There were no significant differences between the mean scores of the bimodal and bilateral groups on any of the tests, although the bimodal group did perform better than the bilateral group on almost all tests. Performance on the different pitch-related tasks was not correlated, meaning that if a subject performed one task well they would not necessarily perform well on another. The correlation between the bimodal users' hearing threshold levels in the aided ear and their performance on these tasks was weak. Conclusions Although the bimodal cochlear implant group performed better than the bilateral group on most parts of the four pitch-related tests, the differences were not statistically significant. The lack of correlation between test results shows that the tasks used are not simply providing a measure of pitch ability. Even if the bimodal users have better pitch perception, the real-world tasks used are reflecting more diverse skills than pitch. This research adds to the existing speech perception, language, and localization studies that show no significant difference between bimodal and bilateral cochlear implant users. PMID:21178567

  19. Talkers' Signaling of "New" and "Old" Words in Speech and

    E-print Network

    as such and that they can use information that a word is old more-or- less as they would use an anaphor to promote retrieval that are unusual in their contexts. they lengthen them. In his example. speaking of the return trip of a person who generally. that have little or no other information than their acoustic signal to specify their identity

  20. An integrated model of person identification based on Perrachione & Wong (2007). Current psychological models of talker identification (e.g. Belin et al., 2004) posit the use of only

    E-print Network

    Gabrieli, John

    2007-01-01

    @northwestern.edu Talker identification, the process by which human listeners recognize individuals by their voice, is one-Race CategorizationVoice-Race Categorization Individual Talker IdentificationIndividual Talker Identification-Level Auditory Analysis Voice Structural Analysis Voice Recognition Speech Perception Person Identification It

  1. An Experimental Evaluation of an Audio Tape Learning Program for Shipboard Damage Control Central Sound Powered Telephone Talker Procedures. Final Report.

    ERIC Educational Resources Information Center

    Brock, John F.; McCutcheon, Richard E., Jr.

    In the event of an emergency aboard a vessel, the sound powered telephone talkers have the responsibility of receiving damage reports from various portions of the ship, logging them, and passing them on to a Damage Control Assistant (DCA) who then can direct the damage control procedures. The talker must not only be thoroughly familiar with sound…

  2. Parental phonological memory contributes to prediction of outcome of late talkers from 20 months to 4 years: a longitudinal study of precursors of specific language impairment

    PubMed Central

    2012-01-01

    Background Many children who are late talkers go on to develop normal language, but others go on to have longer-term language difficulties. In this study, we considered which factors were predictive of persistent problems in late talkers. Methods Parental report of expressive vocabulary at 18 months of age was used to select 26 late talkers and 70 average talkers, who were assessed for language and cognitive ability at 20 months of age. Follow-up at 4 years of age was carried out for 24 late and 58 average talkers. A psychometric test battery was used to categorize children in terms of language status (unimpaired or impaired) and nonverbal ability (normal range or more than 1 SD below average). The vocabulary and non-word repetition skills of the accompanying parent were also assessed. Results Among the late talkers, seven (29%) met our criteria for specific language impairment (SLI) at 4 years of age, and a further two (8%) had low nonverbal ability. In the group of average talkers, eight (14%) met the criteria for SLI at 4 years, and five other children (8%) had low nonverbal ability. Family history of language problems was slightly better than late-talker status as a predictor of SLI.. The best predictors of SLI at 20 months of age were score on the receptive language scale of the Mullen Scales of Early Learning and the parent's performance on a non-word repetition task. Maternal education was not a significant predictor of outcome. Conclusions In this study, around three-quarters of late talkers did not have any language difficulties at 4 years of age, provided there was no family history of language impairment. A family history of language-literacy problems was found to be a significant predictor for persisting problems. Nevertheless, there are children with SLI for whom prediction is difficult because they did not have early language delay. PMID:22958373

  3. Dimensional feature weighting utilizing multiple kernel learning for single-channel talker location discrimination using the acoustic transfer function.

    PubMed

    Takashima, Ryoichi; Takiguchi, Tetsuya; Ariki, Yasuo

    2013-02-01

    This paper presents a method for discriminating the location of the sound source (talker) using only a single microphone. In a previous work, the single-channel approach for discriminating the location of the sound source was discussed, where the acoustic transfer function from a user's position is estimated by using a hidden Markov model of clean speech in the cepstral domain. In this paper, each cepstral dimension of the acoustic transfer function is newly weighted, in order to obtain the cepstral dimensions having information that is useful for classifying the user's position. Then, this paper proposes a feature-weighting method for the cepstral parameter using multiple kernel learning, defining the base kernels for each cepstral dimension of the acoustic transfer function. The user's position is trained and classified by support vector machine. The effectiveness of this method has been confirmed by sound source (talker) localization experiments performed in different room environments. PMID:23363107

  4. Masker location uncertainty reveals evidence for suppression of maskers in two-talker contexts.

    PubMed

    Allen, Kachina; Alais, David; Shinn-Cunningham, Barbara; Carlile, Simon

    2011-10-01

    In many natural settings, spatial release from masking aids speech intelligibility, especially when there are competing talkers. This paper describes a series of three experiments that investigate the role of prior knowledge of masker location on phoneme identification and spatial release from masking. In contrast to previous work, these experiments use initial stop-consonant identification as a test of target intelligibility to ensure that listeners had little time to switch the focus of spatial attention during the task. The first experiment shows that target phoneme identification was worse when a masker played from an unexpected location (increasing the consonant identification threshold by 2.6 dB) compared to when an energetically very similar and symmetrically located masker came from an expected location. In the second and third experiments, target phoneme identification was worse (increasing target threshold levels by 2.0 and 2.6 dB, respectively) when the target was played unexpectedly on the side from which the masker was expected compared to when the target came from an unexpected, symmetrical location in the hemifield opposite the expected location of the masker. These results support the idea that listeners modulate spatial attention by both focusing resources on the expected target location and withdrawing attentional resources from expected locations of interfering sources. PMID:21973359

  5. Age-related changes to spectral voice characteristics affect judgments of prosodic, segmental, and talker attributes for child and adult speech

    PubMed Central

    Dilley, Laura C.; Wieland, Elizabeth A.; Gamache, Jessica L.; McAuley, J. Devin; Redford, Melissa A.

    2013-01-01

    Purpose As children mature, changes in voice spectral characteristics covary with changes in speech, language, and behavior. Spectral characteristics were manipulated to alter the perceived ages of talkers’ voices while leaving critical acoustic-prosodic correlates intact, to determine whether perceived age differences were associated with differences in judgments of prosodic, segmental, and talker attributes. Method Speech was modified by lowering formants and fundamental frequency, for 5-year-old children’s utterances, or raising them, for adult caregivers’ utterances. Next, participants differing in awareness of the manipulation (Exp. 1a) or amount of speech-language training (Exp. 1b) made judgments of prosodic, segmental, and talker attributes. Exp. 2 investigated the effects of spectral modification on intelligibility. Finally, in Exp. 3 trained analysts used formal prosody coding to assess prosodic characteristics of spectrally-modified and unmodified speech. Results Differences in perceived age were associated with differences in ratings of speech rate, fluency, intelligibility, likeability, anxiety, cognitive impairment, and speech-language disorder/delay; effects of training and awareness of the manipulation on ratings were limited. There were no significant effects of the manipulation on intelligibility or formally coded prosody judgments. Conclusions Age-related voice characteristics can greatly affect judgments of speech and talker characteristics, raising cautionary notes for developmental research and clinical work. PMID:23275414

  6. Object identity

    Microsoft Academic Search

    Setrag N. Khoshafian; George P. Copeland

    1986-01-01

    Identity is that property of an object which distinguishes each object from all others. Identity has been investigated almost independently in general-purpose programming languages and database languages. Its importance is growing as these two environments evolve and merge.We describe a continuum between weak and strong support of identity, and argue for the incorporation of the strong notion of identity at

  7. English vowel identification in long-term speech-shaped noise and multi-talker babble for English and Chinese listeners.

    PubMed

    Mi, Lin; Tao, Sha; Wang, Wenjing; Dong, Qi; Jin, Su-Hyun; Liu, Chang

    2013-05-01

    The identification of 12 English vowels was measured in quiet and in long-term speech-shaped noise (LTSSN) and multi-talker babble for English-native (EN) listeners and Chinese-native listeners in the U.S. (CNU) and China (CNC). The signal-to-noise ratio was manipulated from -15 to 0 dB. As expected, EN listeners performed significantly better in quiet and noisy conditions than CNU and CNC listeners. Vowel identification in LTSSN was similar between CNU and CNC listeners; however, performance in babble was significantly better for CNU listeners than for CNC listeners, indicating that exposing non-native listeners to native English may reduce informational masking of multi-talker babble. PMID:23656099

  8. Bridging Identities

    ERIC Educational Resources Information Center

    Deaux, Kay; Burke, Peter

    2010-01-01

    Sociology and psychology are no strangers in the theoretical world of self and identity. Early works by William James (1890), a psychologist, and George Herbert Mead (1934), a sociologist, are often taken as a starting point by investigators in both fields. In more recent years, with the development of a number of identity theories in both fields,…

  9. Bridging Identities through Identity Change

    ERIC Educational Resources Information Center

    Cantwell, Allison M.; Martiny, Sarah E.

    2010-01-01

    As indicated by Deaux and Burke (this volume), sociology and psychology have shared a tradition of discourse allowing social psychologists to build upon each other's ideas. A conversation between social identity theory and identity theory was initiated fifteen years ago and addressed the similarities and differences between these theories. This…

  10. Identity management

    NASA Astrophysics Data System (ADS)

    Pace, A.

    2008-07-01

    This paper introduces identity management concepts and discusses various issues associated with their implementation. It will try to highlight technical, legal, and social aspects that must been foreseen when defining the numerous processes that an identity management infrastructure must support. Grid interoperability as well as cross platform interoperability is addressed on the technical aspect, followed by a short discussion on social consequences on user's privacy when completed traceability is enforced. The paper will finally give some examples on how identity management has been implemented at CERN.

  11. Talker continuity and the use of rate information during phonetic perception

    Microsoft Academic Search

    Kerry P. Green; Erica B. Stevens; Patricia K. Kuhl

    1994-01-01

    Research has shown that speaking rate provides an important context for the perception of certain acoustic properties of speech.\\u000a For example, syllable duration, which varies as a function of speaking rate, has been shown to influence the perception of\\u000a voice onset time (VOT) for syllableinitial stop consonants. The purpose of the present experiments was to examine the influence\\u000a of syllable

  12. Collective Intelligence in Citizen Science -- A Study of Performers and Talkers

    E-print Network

    Tinati, Ramine; Luczak-Roesch, Markus; Van Kleek, Max; Shadbolt, Nigel

    2014-01-01

    The recent emergence of online citizen science is illustrative of an efficient and effective means to harness the crowd in order to achieve a range of scientific discoveries. Fundamentally, citizen science projects draw upon crowds of non-expert volunteers to complete short Tasks, which can vary in domain and complexity. However, unlike most human-computational systems, participants in these systems, the `citizen scientists' are volunteers, whereby no incentives, financial or otherwise, are offered. Furthermore, encouraged by citizen science platforms such as Zooniverse, online communities have emerged, providing them with an environment to discuss, share ideas, and solve problems. In fact, it is the result of these forums that has enabled a number of scientific discoveries to be made. In this paper we explore the phenomenon of collective intelligence via the relationship between the activities of online citizen science communities and the discovery of scientific knowledge. We perform a cross-project analysis...

  13. Subjective and psychophysiological indices of listening effort in a competing-talker task

    PubMed Central

    Mackersie, Carol L.; Cones, Heather

    2010-01-01

    Background The effects of noise and other competing backgrounds on speech recognition performance are well documented. There is less information, however, on listening effort and stress experienced by listeners during a speech recognition task that requires inhibition of competing sounds. Purpose The purpose was a) to determine if psychophysiological indices of listening effort were more sensitive than performance measures (percentage correct) obtained near ceiling level during a competing speech task b) to determine the relative sensitivity of four psychophysiological measures to changes in task demand and c) to determine the relationships between changes in psychophysiological measures and changes in subjective ratings of stress and workload. Research Design A repeated-measures experimental design was used to examine changes in performance, psychophysiological measures, and subjective ratings in response to increasing task demand. Study Sample Fifteen adults with normal hearing participated in the study. The mean age of the participants was 27 (range: 24–54). Data Collection and Analysis Psychophysiological recordings of heart rate, skin conductance, skin temperature, and electromyographic activity (EMG) were obtained during listening tasks of varying demand. Materials from the Dichotic Digits Test were used to modulate task demand. The three levels of tasks demand were: single digits presented to one ear (low-demand reference condition), single digits presented simultaneously to both ears (medium demand), and a series of two digits presented simultaneously to both ears (high demand). Participants were asked to repeat all the digits they heard while psychophysiological activity was recorded simultaneously. Subjective ratings of task load were obtained after each condition using the NASA-TLX questionnaire. Repeated-measures analyses of variance were completed for each measure using task demand and session as factors. Results Mean performance was higher than 96% for all listening tasks. There was no significant change in performance across listening conditions for any listener. There was, however, a significant increase in mean skin conductance and EMG activity as task demand increased. Heart rate and skin temperature did not change significantly. There was no strong association between subjective and psychophysiological measures, but all participants with mean normalized effort ratings of greater than 4.5 (i.e. effort increased by a factor of at least 4.5) showed significant changes in skin conductance. Conclusions Even in the absence of substantial performance changes, listeners may experience changes in subjective and psychophysiological responses consistent with activation of a stress response. Skin conductance appears to be the most promising measure for evaluating individual changes in psychophysiological responses during listening tasks. PMID:21463566

  14. Maternal Identity, Occupational Identity and Parental Awareness in Mothers.

    ERIC Educational Resources Information Center

    James, Jacquelyn B.; Speisman, Joseph C.

    The quality of parenting in dual career families has been the subject of much debate. To determine whether employed and non-employed mothers, varying in psychological identity status (parental and occupational), differ in the maturity of their perspectives on children and the parent role, 37 married women with children were interviewed. The…

  15. Chisholm, persons and identity

    Microsoft Academic Search

    Harold W. Noonan

    1993-01-01

    R. M. Chisholm has written in many places about identity and personal identity. Following Bishop Butler he maintains that while the identity over time of such physical things as ships is identity only in a 'loose and popular' sense, personal identity is identity in a 'strict and philosophical' sense, and he draws many striking conclusions from this contention. Despite the

  16. IDENTITY THEORY AND SOCIAL IDENTITY THEORY

    Microsoft Academic Search

    Peter J. Burke; Jan E. Stets

    Abstract Identity theory and social identity theory have more points of overlap than differences in their understanding of the self. For this reason, we argue that the unification of these two theories is advisable in order to both avoid redundancies in theorizing about the self and to provide a uniform approach to the multifaceted nature of identities in terms of

  17. identity application sectionnine

    E-print Network

    Klein, Ophir

    identity application sectionnine 74 contents introduction .........................................................................................................85 #12;University of California, San Francisco | Public Affairs | Visual Identity Standards The following examples are intended to demonstrate the positive impact a visual identity can have when

  18. National Identity Learning Module

    NSDL National Science Digital Library

    M.Keane

    This learning module provides conceptual framework on the topic of national identity as well as three case studies on the topics of: icons of identity, landscapes of national identity, and contested public space.

  19. Time-Varying Gravitomagnetism

    E-print Network

    Bahram Mashhoon

    2008-03-12

    Time-varying gravitomagnetic fields are considered within the linear post-Newtonian approach to general relativity. A simple model is developed in which the gravitomagnetic field of a localized mass-energy current varies linearly with time. The implications of this temporal variation of the source for the precession of test gyroscopes and the motion of null rays are briefly discussed.

  20. Introduction Identity Based Signatures

    E-print Network

    Garcia, Flavio D.

    Introduction Identity Based Signatures The Construction Conclusions A Schnorr-like Lightweight Identity-Based Signature Scheme Flavio D. Garcia Institute for Computing and Information Sciences, Radboud-like Lightweight Identity-Based Signature Scheme #12;Introduction Identity Based Signatures The Construction

  1. Economics And Identity

    Microsoft Academic Search

    George A. Akerlof; Rachel E. Kranton

    2000-01-01

    This paper considers how identity, a person's sense of self, affects economic outcomes. We incorporate the psychology and sociology of identity into an economic model of behavior. In the utility function we propose, identity is associated with different social categories and how people in these categories should behave. We then construct a simple game-theoretic model showing how identity can affect

  2. Personal Identity in Italy

    ERIC Educational Resources Information Center

    Crocetti, Elisabetta; Rabaglietti, Emanuela; Sica, Luigia Simona

    2012-01-01

    This chapter discusses specifics of identity formation in Italian adolescents and emerging adults. We review consistent evidence illustrating that, in Italy, a progressive deferral of transition to adulthood strongly impacts youth identity development by stimulating identity exploration and postponement of identity commitments. We also consider…

  3. The Identity and Identity Identification of Teachers

    ERIC Educational Resources Information Center

    Qu, Zhengwei

    2008-01-01

    When we tend to analyze the living conditions of teachers, system arrangement and identity identification can be considered a significant method for analysis. In reality, there appears a phenomenon of overlapping identification in the identity identification of teachers in China, which leads to plural selections in the identification manners of…

  4. Identity, causality, and pronoun ambiguity.

    PubMed

    Sagi, Eyal; Rips, Lance J

    2014-10-01

    This article looks at the way people determine the antecedent of a pronoun in sentence pairs, such as: Albert invited Ron to dinner. He spent hours cleaning the house. The experiment reported here is motivated by the idea that such judgments depend on reasoning about identity (e.g., the identity of the he who cleaned the house). Because the identity of an individual over time depends on the causal-historical path connecting the stages of the individual, the correct antecedent will also depend on causal connections. The experiment varied how likely it is that the event of the first sentence (e.g., the invitation) would cause the event of the second (the house cleaning) for each of the two individuals (the likelihood that if Albert invited Ron to dinner, this would cause Albert to clean the house, versus cause Ron to clean the house). Decisions about the antecedent followed causal likelihood. A mathematical model of causal identity accounted for most of the key aspects of the data from the individual sentence pairs. PMID:25131648

  5. Avoiding Medical Identity Theft

    MedlinePLUS

    Tips for Preventing and Detecting Medical Identity Theft Tips for Preventing and Detecting Medical Identity Theft Monitor your health records closely and address any errors quickly Share personal and ...

  6. Biracial Japanese American identity: an evolving process.

    PubMed

    Collins, J F

    2000-05-01

    This qualitative study explored the complexity of biracial identity development in Japanese Americans. It is based on the constant comparable method of analysis, or grounded theory. The study focused on how Japanese Americans perceived themselves in relation to other individuals, groups, and their environment. The data consisted of 15 extensive semistructured interviews with 8 men and 7 women (ages 20 to 40 years), each with 1 Japanese parent and 1 non-Asian parent. Findings relate to participants' initiating explorations of identity and perseverance in pursuing a biracial identity, which depended on the degree of support or negative experience within their social networks. Participants explored identity options attempting to develop their own meaning of identity, to develop a confident sense of themselves, and to secure a positive ethnic identity. Identity development among participants varied. It was a long-term process involving changes in the individual-environment relationship, which differed in the way individual participants influenced or selected from environmental opportunities, even creating or recreating some aspects. Within a given setting, as youths, the potential for social experiences were relatively fixed and changed only gradually. As adults, there were opportunities for participants to select their own social and geographic settings, providing opportunity for change. In their new environments, participants were exposed to new contacts and role models, acquired new behavioral repertoire, and underwent role transitions. Depending on this, new and different aspects of biracial identity developed. Participants indicated it was an emotional and conflictual process to positive assertion of identity. Before reaching this, all of the participants experienced periods of confusion. Most asserted biracial identity gradually, through a process of racial identity development consisting of the individual's changing or maintaining certain reference group perspectives, identifications, and allegiances as they passed through a series of life experiences. Instead of staying marginalized, they integrated both cultures, recognizing positive values of both, thus developing an integrated identity. Although the participants' experiences and perceptions were varied, the overarching themes of self-evaluation, confusion of categorization, belonging, infusion/exploration, situational use of identity, and resolution/acceptance/self-verification were presented. On the basis of the research, a model of ethnic identity for biracial individuals is proposed. PMID:10910527

  7. Identity Uncertainty Stuart Russell

    E-print Network

    Russell, Stuart

    Identity Uncertainty Stuart Russell Computer Science Division University of California, Berkeley, CA 94720, USA russell@cs.berkeley.edu Abstract We are often uncertain about the identity of objects probabilis- tic approach to reasoning about identity under uncer- tainty in the framework of first

  8. Identity Security Awareness

    PubMed Central

    Philipsen, Nayna C.

    2004-01-01

    Identity theft is an increasing concern when organizations, businesses, and even childbirth educators ask for a client's Social Security number for identification purposes. In this column, the author suggests ways to protect one's identity and, more importantly, decrease the opportunities for identity theft. PMID:17273374

  9. Varying-{alpha} monopoles

    SciTech Connect

    Menezes, J.; Avelino, P.P.; Santos, C. [Centro de Fisica do Porto e Departamento de Fisica da Faculdade de Ciencias da Universidade do Porto, Rua do Campo Alegre 687, 4169-007, Porto (Portugal)

    2005-11-15

    We study static magnetic monopoles in the context of varying-{alpha} theories and show that there is a group of models for which the 't Hooft-Polyakov solution is still valid. Nevertheless, in general static magnetic monopole solutions in varying-{alpha} theories depart from the classical 't Hooft-Polyakov solution with the electromagnetic energy concentrated inside the core seeding spatial variations of the fine-structure constant. We show that Equivalence Principle constraints impose tight limits on the allowed variations of {alpha} induced by magnetic monopoles which confirms the difficulty to generate significant spatial variation of the fine-structure constant found in previous works. This is true even in the most favorable case where magnetic monopoles are the source for these variations.

  10. Effect of fundamental-frequency and sentence-onset differences on speech-identification performance of young and older adults in a competing-talker background.

    PubMed

    Lee, Jae Hee; Humes, Larry E

    2012-09-01

    This study investigated the benefits of differences between sentences in fundamental frequency (F0) and temporal onset for sentence pairs among listener groups differing in age and hearing sensitivity. Two experiments were completed with the primary difference between experiments being the way in which the stimuli were presented. Experiment 1 used blocked stimulus presentation, which ultimately provided redundant acoustic cues to mark the target sentence in each pair, whereas Experiment 2 sampled a slightly more restricted stimulus space, but in a completely randomized presentation order. For both experiments, listeners were required to detect a cue word ("Baron") for the target sentence in each pair and to then identify the target words (color, number) that appeared later in the target sentence. Results of Experiment 1 showed that F0 or onset separation cues were beneficial to both cue-word detection and color-number identification performance. There were no significant differences across groups in the ability to detect the cue word, but groups differed in their ability to identify the correct color-number words. Elderly adults with impaired hearing had the greatest difficulty with the identification task despite the application of spectral shaping to restore the audibility of the speech stimuli. For the most part, the primary results of Experiment 1 were replicated in Experiment 2, although, in the latter experiment, all older adults, whether they had normal or impaired hearing, performed worse than young adults with normal hearing. From Experiment 2, the benefits received for a difference in F0 between talkers of 6 semitones were equivalent to those received for an onset asynchrony of 300 ms between sentences and, for such conditions, the combination of both sound-segregation cues resulted in an additive benefit. PMID:22978898

  11. Social Identity and Preferences*

    PubMed Central

    Benjamin, Daniel J.; Choi, James J.; Strickland, A. Joshua

    2009-01-01

    Social identities prescribe behaviors for people. We identify the marginal behavioral effect of these norms on discount rates and risk aversion by measuring how laboratory subjects’ choices change when an aspect of social identity is made salient. When we make ethnic identity salient to Asian-American subjects, they make more patient choices. When we make racial identity salient to black subjects, non-immigrant blacks (but not immigrant blacks) make more patient choices. Making gender identity salient has no effect on intertemporal or risk choices. PMID:20871741

  12. Selective attention to facial emotion and identity in children with autism: evidence for global identity and local emotion.

    PubMed

    Song, Yongning; Hakoda, Yuji

    2012-08-01

    The present study sought to test the global-identity and local-emotion processing hypothesis in face perception by examining emotional interference in face perception in children with high-functioning autism/Asperger's syndrome. Participants judged either the expression or the identity of faces while identity/expression was either held constant or varied (Garner paradigm). The results revealed that emotional expressions interfered with identity processing in face perception for autism spectrum disorder individuals. Taken together with previous findings, our results suggest that emotion judgment mainly depends on local processing, while identity judgment mainly depends on global processing. PMID:22753237

  13. University Identity Standards a manual for building a stronger identity

    E-print Network

    New Mexico, University of

    University Identity Standards a manual for building a stronger identity Produced by University). quick info #12;1 UNM brand redesign table of contents University Identity Standards Table of Contents..................................................................................................... 2 Image & Identity

  14. Host Identity Payload in Home Networks

    Microsoft Academic Search

    Miika Komu

    Host Identity Payload (HIP) is a new protocol layer that can help in adding more security, mobility and multihoming features into the current internet architecture. HIP would be an appealing alternative for home consumers because HIP tries to be as transparent as possible. End users can have varying requirements, such as wireless roaming, quality of service, and anonymity. This paper

  15. Narrative Sexual Identity Therapy

    Microsoft Academic Search

    Mark A. Yarhouse

    2008-01-01

    Sexual identity therapy is an alternative to the two polarized positions of sexual reorientation therapy and gay-integrative therapy for clients who present with sexual identity concerns. This alternative model focuses on sexual identity—the private and public acts of identifying and communicating one's sexual preferences—and how the decision to do so is informed by dominant stories about what sexual attractions mean

  16. Host Identity Protocol

    Microsoft Academic Search

    Fayez Al-shraideh

    2006-01-01

    Host Identity Protocol (HIP) proposes a new name space, Host Identity. This name can be any globally unique name but it has been chosen to be the Public Key of a Public\\/Private Key pair. This paper can be seen as HIP tutorial since it provides an insight view on HIP Architecture, HIP Base Exchange, Encapsulated Security Payload (ESP) Security Association

  17. SEXUALITY AND GENDER IDENTITY

    E-print Network

    Viglas, Anastasios

    LEARN TO UNDERSTAND SEXUALITY AND GENDER IDENTITY COUNSELLING AND PSYCHOLOGICAL SERVICES CAPS #12;CONTENTS 01 Questioning your sexuality or gender identity 02 Coming out 04 Sexual health 05 Harassment and discrimination 06 Types of support and information available 08 Useful resources Sexual orientation is about who

  18. PROecom Solutions: Corporate Identity

    Microsoft Academic Search

    Jane Doe

    Managing the use and implementation of the graphic elements which make up your corporate identity can present a substantial challenge. Across all industries, companies are faced with the task of continuously managing their visual identity assets to ensure that they are represented appropriately and consistently at all times. Imagine a system that would streamline this process and ensure the consistent

  19. Identity Based Undeniable Signatures

    Microsoft Academic Search

    Benoît Libert; Jean-jacques Quisquater

    2004-01-01

    In this paper, we give a first example of identity based un- deniable signature using pairings over elliptic curves. We extend to the identity based setting the security model for the notions of invisibil- ity and anonymity given by Galbraith and Mao in 2003 and we prove that our scheme is existentially unforgeable under the Bilinear Diffie- Hellman assumption in

  20. Children's Social Identities

    ERIC Educational Resources Information Center

    Bennett, Mark

    2011-01-01

    This paper provides a brief overview of recent developmental research on themes related to children's social identities. Initially, consideration is given to the capacity for social categorization, following which attention is given to children's developing conceptions of social identities, their identification with social groups, and the…

  1. Academic Identities under Threat?

    ERIC Educational Resources Information Center

    Clegg, Sue

    2008-01-01

    This article focuses on the lived experience of practising academics as part of an inquiry into the vexed question of "academic identities". Identity is understood not as a fixed property, but as part of the lived complexity of a person's project. The article reports on data from a small study in one university. The data suggest that academic…

  2. Mirror Writing and a Dissociative Identity Disorder

    PubMed Central

    Le, Catherine; Smith, Joyce; Cohen, Lewis

    2009-01-01

    Individuals with dissociative identity disorder (DID) have been known to show varied skills and talents as they change from one dissociative state to another. For example, case reports have described people who have changed their handedness or have spoken foreign languages during their dissociative states. During an interview with a patient with DID, a surprising talent emerged when she wrote a sentence for the Folstein Mini-Mental State Exam—mirror writing. It is not known whether her mirror writing had a deeper level of meaning; however, it does emphasize the idiosyncratic nature of dissociative identity disorder. PMID:19865491

  3. Mirror writing and a dissociative identity disorder.

    PubMed

    Le, Catherine; Smith, Joyce; Cohen, Lewis

    2009-01-01

    Individuals with dissociative identity disorder (DID) have been known to show varied skills and talents as they change from one dissociative state to another. For example, case reports have described people who have changed their handedness or have spoken foreign languages during their dissociative states. During an interview with a patient with DID, a surprising talent emerged when she wrote a sentence for the Folstein Mini-Mental State Exam-mirror writing. It is not known whether her mirror writing had a deeper level of meaning; however, it does emphasize the idiosyncratic nature of dissociative identity disorder. PMID:19865491

  4. Identity Database 1. CyberCIEGE Identity Database

    E-print Network

    Identity Database 1. CyberCIEGE Identity Database CyberCIEGE is an information assurance (IA-motivated professionals. The Identity Database scenario requires players to protect an identity database that is used.1 Preparation From the "Campaign Player", select the "Identity Database" campaign as seen in figure 1

  5. The Individual and Ethnic Identity: A Guide for Teachers.

    ERIC Educational Resources Information Center

    Brownstein, Henry H.; And Others

    This guide to teaching ethnicity from the ethnic individual's point of view is designed to accompany the student sourcebook, The Individual and Ethnic Identity (see SO 013 157). The sourcebook, suitable for secondary and higher education, contains quotations of 51 individuals from varying ethnic backgrounds and varying degrees of ethnicity. It…

  6. Dissociative Identity Disorder

    PubMed Central

    2009-01-01

    A brief description of the controversies surrounding the diagnosis of dissociative identity disorder is presented, followed by a discussion of the proposed similarities and differences between dissociative identity disorder and borderline personality disorder. The phenomenon of autohypnosis in the context of early childhood sexual trauma and disordered attachment is discussed, as is the meaning of alters or alternate personalities. The author describes recent neurosciences research that may relate the symptoms of dissociative identity disorder to demonstrable disordered attention and memory processes. A clinical description of a typical patient presentation is included, plus some recommendations for approaches to treatment. PMID:19724751

  7. IDENTITY THEFT PREVENTION Policy Statement

    E-print Network

    Shahriar, Selim

    IDENTITY THEFT PREVENTION Policy Statement This policy requires affected Northwestern University schools and departments to develop and implement Identity Theft Prevention Programs that include opportunities for identity theft; 2. Identify patterns, practices, and specific forms of activity that indicate

  8. PERSONAL IDENTITY VERIFICATION (PIV) OF

    E-print Network

    March 2005 PERSONAL IDENTITY VERIFICATION (PIV) OF FEDERAL EMPLOYEES AND CONTRACTORS: FEDERAL A new Federal Information Processing Standard (FIPS) for a government- wide personal identity enhance security, increase government efficiency, reduce identity fraud, and protect personal privacy

  9. IDENTITY THEFT PREVENTION Policy Statement

    E-print Network

    Shahriar, Selim

    1 IDENTITY THEFT PREVENTION Policy Statement This policy requires affected Northwestern University schools and departments to develop and implement Identity Theft Prevention Programs that include opportunities for identity theft; 2. Identify patterns, practices, and specific forms of activity that indicate

  10. The Non-Identity Problem

    E-print Network

    Urbanek, Valentina Maria

    2010-01-01

    Some actions are identity affecting, they affect who will exist in the future. Explaining how identity affecting actions can be wrong has been thought to pose a problem, the Non-Identity Problem. The problem is that an ...

  11. web identity application sectioneleven

    E-print Network

    Derisi, Joseph

    web identity application sectioneleven 99 contents elements of webpage design......................................................................... 100-101 web development and design considerations web banners is required for all official UCSF webpages. This banner includes a required link

  12. Does identity matter?

    E-print Network

    Koczan, Zs

    2013-04-19

    Leod, 1996; Zephir, 2001; MacFadden, 2004; Zimmerman, Zimmerman and Constant, 2006; Lewandowska, 2007; Clark, 2008; Somerville, 2008). Other papers (Manning and Roy, 2007; Georgiadis and Manning, 2009) examine models of identity formation to explain choices...

  13. Weighted Temperature Identities

    NASA Astrophysics Data System (ADS)

    Kot, V. A.

    2015-04-01

    It has been shown that the differential heat conduction equation together with the boundary conditions can be recast as a sequence consisting of integral identities for the weighted temperature. Weight functions take into account the properties of the heat conduction equation and the boundary conditions. The sequence of identities was constructed on the basis of multiple differentiation or integration operators. Using the search for eigenvalues of the boundary value problem as an example, we have demonstrated the high efficiency of such systems.

  14. Identity and Illness

    Microsoft Academic Search

    Kathryn J. Lively; Carrie L. Smith

    \\u000a Over the last several decades, sociological interest in and research on the relationship between illness and identity has\\u000a flourished. Unlike disease, which refers primarily to physical pathology, illness generally refers to lived experience (Kleinman\\u000a et al. 1978). The foci of this research have been two-fold: an examination of the public self (an individual’s identity as\\u000a perceived by others) and the

  15. Gender Identity Development

    Microsoft Academic Search

    Kay Bussey

    \\u000a Gender features strongly in most societies and is a significant aspect of self-definition for most people. Following a brief\\u000a description of views on gender identity from the perspectives of humanistic social science, sociology, and psychology, this\\u000a chapter provides an analysis of gender identity development from the perspective of social cognitive theory. Social cognitive\\u000a theory describes how gender conceptions are developed

  16. Supersymmetry and Identical Bands

    NASA Astrophysics Data System (ADS)

    von Brentano, P.

    2004-04-01

    Supersymmetry as applied to identical bands is discussed. A review of the work of the Koeln-Dubna group on this topic is given and examples in 171,172Yb , 173,174Hf and 195,194pt are discussed. The role of pseudo-spin in the supersymmetry is investigated. A recent precision lifetime measurement for identical bands in 171,172Yb is discussed.

  17. Dogs discriminate identical twins.

    PubMed

    Pinc, Ludvík; Bartoš, Lud?k; Reslová, Alice; Kotrba, Radim

    2011-01-01

    Earlier studies have shown variation among experimental attempts to establish whether human monozygotic twins that are genetically identical also have identical individual scents. In none of the cases were the dogs able to distinguish all the individual scents of monozygotic twins living in the same environment if the scents were presented to them separately. Ten specially trained police German Shepherd dogs of three Czech Republic Police Regional Headquarters were used for scent identification in our study. The dogs were supposed to match scents of two monozygotic pairs (5 and 7 years old) and two dizygotic twin pairs (8 and 13 years old). Scents were collected on cotton squares stored in glass jars. Dog handlers were blind to the experiment details. In each trial (line-up), one scent was used as a starting scent and the dog was then sent to determine if any of the 7 presented glass jars contained a matching scent. Scents of children of similar ages were used as distractors. In the matching procedure, the dogs matched correctly the scent of one twin with the other, as well as two scents collected from every single identical and non-identical twin to prove their efficacy and likewise, the presence of the matching twin scent in any given glass jar. All dogs in all trials distinguished correctly the scents of identical as well as non-identical twins. All dogs similarly matched positively two scents collected from the same individuals. Our findings indicated that specially trained German Shepherd dogs are able to distinguish individual scents of identical twins despite the fact that they live in the same environment, eat the same food and even if the scents are not presented to them simultaneously. PMID:21698282

  18. Social construction of transnational identity

    Microsoft Academic Search

    Alison Green; Mary Power

    2005-01-01

    This paper investigates how migration to Australia affects New Zealanders’ sense of identity. New Zealanders living in Australia have both an enhanced sense of their New Zealand identity and a new transnational identity, created through their experiences and interactions within their new society together with their continued contact with their country of origin. Identity construction and reconstruction is examined through

  19. Identity Theft Resource Center

    NSDL National Science Digital Library

    These days, persons who find themselves the victim of an identity theft have a number of resources they can draw on to deal with their predicament. In 1997, things were quite different, and at that time Linda Foley found herself victimized by this crime. Several years later, Linda founded the Identity Theft Resource Center, and since then the Center has been commended for its work by the Department of Justice and Senator Dianne Feinstein. From the Center’s homepage, visitors can access victim information guides, learn about recent (and some “classic”) consumer scams. A great deal of this information is tailored specifically for different audiences, such as law enforcement and children. One area that may be particularly helpful is the “In the Workplace” section. Here, visitors can learn how to avoid identity theft in the workplace, and also browse through a list of prevention tips.

  20. The Music Identity Project

    ERIC Educational Resources Information Center

    Talbot, Brent C.

    2013-01-01

    This article addresses the intrapersonal aims of music education with specific emphasis on musical identity. For the author, the question "Who am I?" is ingrained, shaped, and experienced by the contexts, relationships, and activities in which people are most deeply invested. Thus, he believes that music education should have mechanisms…

  1. Visual Identity and Branding

    E-print Network

    Nelson, Tim

    impact the ASSP brand, either positively or negatively. Good branding requires consistency, continuity by the consistent use of particular visual elements to create distinction. *2.1 For example, the ASSP visual brandVisual Identity and Branding If you have any further questions about how, when, where or why to use

  2. An Interesting Identity

    E-print Network

    Brett Pansano

    2015-03-13

    This purpose of this paper is to note an interesting identity derived from an integral in Gradshteyn and Ryzhik using techniques from George Boros'(deceased) Ph.D thesis. The idenity equates a sum to a product by evaluating an integral in two different ways. A more general form of the idenity is left for further investigation.

  3. Our unique microbial identity.

    PubMed

    Gilbert, Jack A

    2015-01-01

    A recent article examines the extent of individual variation in microbial identities and how this might determine disease susceptibility, therapeutic responses and recovery from clinical interventions.Please see related article: http://dx.doi.org/10.1186/s13059-015-0646-9. PMID:25971745

  4. Work and Female Identity.

    ERIC Educational Resources Information Center

    Reohr, Janet R.

    In climbing an organizational ladder dominated by males, the professional woman encounters obstacles to the more traditional feminine behaviors and mannerisms to which she may be accustomed. These obstacles may erode her sense of identity, creating difficulties both inside and outside of her work environment. Traditional distinctions between…

  5. Beyond Gender Identity?

    ERIC Educational Resources Information Center

    Rasmussen, Mary Lou

    2009-01-01

    This paper focuses on the continuing significance of gender identity as a category of analysis within the field of gender theory and research in education. I begin by considering contemporary discussions of the limitations of research relating to gender theory and research in education. Following on from this, I explore some contemporary…

  6. Education and Identity Revisited.

    ERIC Educational Resources Information Center

    Thomas, Russell; Chickering, Arthur W.

    1984-01-01

    Presents responses of Arthur W. Chickering to a series of questions about his publication "Education and Identity." Chickering reflects on his original and current thoughts and feelings about the book and the role of student affairs and higher education in student development. (JAC)

  7. The Symbolic Identity Technique.

    ERIC Educational Resources Information Center

    Goud, Nelson H.

    2001-01-01

    Explains the role of symbols in attaining total psychic growth by applying concepts of C. Jung, R. Assagiolo, and L. Kubie. Describes a new strategy, the symbolic identity technique, which involves environmental exploration in a relaxed, receptive manner in order to discover something in the outer environment that reflects one's inner nature.…

  8. FROM IDENTITY THEORY TO COMMUNICATIONAL SEMIOPRAGMATICS.

    E-print Network

    Paris-Sud XI, Université de

    FROM IDENTITY THEORY TO COMMUNICATIONAL SEMIOPRAGMATICS. Multiple Identities in Interpersonal Communication Alex Frame University of Burgundy EA 4177 #12;From Identity Theory to Communicational Semiopragmatics: Multiple Identities in Interpersonal Communication Identities under Construction - Liège ­ 16th

  9. Constructing nurses' professional identity through social identity theory.

    PubMed

    Willetts, Georgina; Clarke, David

    2014-04-01

    The profession of nursing continues to struggle with defining and clarifying its professional identity. The definitive recognition of nursing as a profession was the moving of training from the hospital apprentice model to the tertiary sector. However, this is only part of the story of professional identity in nursing. Once training finishes and enculturation into the workplace commences, professional identity becomes a complicated social activity. This paper proposes social identity theory as a valuable research framework to assist with clarifying and describing the professional identity of nurses. The paper outlines the key elements of a profession and then goes on to describe the main concepts of social identity theory. Lastly, a connection is made between the usefulness of using social identity theory in researching professional identity in nursing, recognizing the contextual nature of the social activity of the profession within its workplace environment. PMID:24713013

  10. A Grasp of Identity

    E-print Network

    Pere Seglar; Enric Pérez

    2014-11-06

    We revisit the treatment of identical particles in quantum mechanics. Two kinds of solutions of Schr\\"{o}dinger equation are found and analyzed. First, the known symmetrized and antisymmetrized eigenfunctions. We examine how the very concept of particle is blurred whithin this approach. Second, we propose another kind of solution with no symmetries that we identify with Maxwell-Boltzmann statistics. In it, particles do preserve their individuality, as they are provided with individual energy and momenta. However, these properties cannot be univocally ascribed; moreover, particles do not possess distinctive positions. Finally, we explore how these results affect the calculation of canonical partition function, and we show that extensivity arises as a consequence of identity.

  11. Identity Construction, Negotiation, and Resistance: Reconsideration of "Japanese" Identity

    ERIC Educational Resources Information Center

    Fukuda, Chie

    2010-01-01

    This dissertation explores identity construction, mainly focusing on the ethnonational identity of "Japanese," in contrast to that of "non-Japanese" from ethnomethodological and social constructionist perspectives. Within these approaches, identity is not given "a priori" but emerges through sociohistorical contexts and discursive practices at…

  12. Does Everyone Have a Musical Identity?: Reflections on "Musical Identities"

    ERIC Educational Resources Information Center

    Gracyk, Theodore

    2004-01-01

    The book, "Musical Identities" (Raymond MacDonald, David Hargreaves, Dorothy Miell, eds.; Oxford and New York: Oxford University Press, 2002) consists of 11 essays on the psychology of music. The editors divided the essays into two groups: those on developing musical identities ("identities in music" involving recognizable social and cultural…

  13. Identity Boxing: A New Technique for Consistent Global Identity

    E-print Network

    Thain, Douglas

    Identity Boxing: A New Technique for Consistent Global Identity Douglas Thain University of Notre Dame Department of Computer Science and Engineering ABSTRACT Today, users of the grid may easily. However, users are forced to employ a patchwork of local identities, each assigned by a different local

  14. Blindness as identity 

    E-print Network

    Carter, Victoria Ray

    2001-01-01

    Daily Living Skills Dependence on Family. Financial Independence Independent Mobility. STRENGTH AND WEAKNESS. White Canes, Dog Guides, and Competence. Eye Contact and Blindisms. Using Other Senses Advantages of Blindness Heroic Dog Guides... as identity- ". . . Who wants to be an inferior? Why not just pretend you are sighted ? refuse to use Braille, refuse to use a long cane or dog guide, refuse to put your hands on something to 'see' it, or refuse to let anyone know that you are blind...

  15. Social Identities and Psychosocial Stress

    Microsoft Academic Search

    Peter J. Burke

    In order to understand the role of identities in the stress process, I begin with a short discus- sion of the nature of social identities as understood in the context of identity theory. Following that, I briefly review an interruption theory of stress based on the work of Mandler (1982) and show how the underlying mechanisms which produce the stress

  16. Carleton University Visual Identity Toolkit

    E-print Network

    Carleton University

    brand equity; Reinforcing brand; and Maximizing recall and recognition. EXPERIENCE A consistent visual IS A CONSISTENT VISUAL IDENTITY IMPORTANT? WHAT IS THE AIM OF OUR IDENTITY STANDARDS? SECTION 2 GUIDELINES SECTION 2 GUIDELINES SECTION 3 EXAMPLES SECTION 1 INTRODUCTION WHY IS A CONSISTENT IDENTITY IMPORTANT

  17. Identity Development in Deaf Adolescents

    ERIC Educational Resources Information Center

    Kunnen, E. Saskia

    2014-01-01

    We studied identity development during 5 years in seven deaf adolescents who attended a school for deaf children in the highest level of regular secondary education (age between 14 and 18 years), administering identity interviews every year. Identity development is conceptualized as the processes of exploration and commitment formation (Bosma,…

  18. Identity, Citizenship and Moral Education

    ERIC Educational Resources Information Center

    Splitter, Laurance

    2011-01-01

    Questions of identity such as "Who am I?" are often answered by appeals to one or more affiliations with a specific nation (citizenship), culture, ethnicity, religion, etc. Taking as given the idea that identity over time--including identification and re-identification--for objects of a particular kind requires that there be criteria of identity

  19. Examining Emotions in Identity Theory

    ERIC Educational Resources Information Center

    Stets, Jan E.

    2005-01-01

    In this study I develop theoretically the role of emotions in identity theory by examining individuals' emotional reactions to identity nonverification (in a positive and a negative direction) and identity verification, which occurs once versus repeatedly, and which is perpetrated by a familiar other compared with an unfamiliar other. Predictions…

  20. Guidelines for Use of CURA's Visual Identity

    E-print Network

    Levinson, David M.

    Guidelines for Use of CURA's Visual Identity Revised Junw 2011 #12;Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Elements of the Identity . . . . . . . . . . . . . . . . . . . . . 3 Use of the Identity . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Misuse

  1. Eudaimonic Identity Theory: Identity as Self-Discovery

    Microsoft Academic Search

    Alan S. Waterman

    \\u000a Work on eudaimonistic identity theory began in an effort to answer the question: How is an individual trying to answer identity-related\\u000a questions to know which of the many identity alternatives available is the “better” choice to make? Central to eudaimonistic\\u000a philosophy is the construct of the daimon or “true self,” those potentials of each individual that represent the best that

  2. Ethnic and Urban Intersections in the Classroom: Latino Students, Hybrid Identities, and Culturally Responsive Pedagogy

    Microsoft Academic Search

    Jason G. Irizarry

    2007-01-01

    Drawing from data collected through classroom observations and in-depth interviews, this article describes and analyzes practices identified as culturally responsive by Latinos students in an urban, multiethnic\\/racial context. The findings suggest that culturally responsive pedagogy must be more broadly conceptualized to address the cultural identities of students who have complex identities because of their experiences with peers of many varied

  3. Asian American Ethnic Options: How Cambodian Students Negotiate Ethnic Identities in a U.S.

    E-print Network

    Barrett, Jeffrey A.

    Asian American Ethnic Options: How Cambodian Students Negotiate Ethnic Identities in a U.S. Urban across varying school contexts. [Asian American identity, Cambodian/Khmer students, ethnic stereotypes, model minority] Cambodian students in the United States are often viewed within an Asian American

  4. Relationship Duration Moderation of Identity Status Differences in Emerging Adults' Same-Sex Friendship Intimacy

    ERIC Educational Resources Information Center

    Johnson, H. Durell

    2012-01-01

    Previous research has not yielded consistent identity and intimacy associations for female and male emerging adults. Intimacy varies with time spent in a relationship, and relationship duration may explain variations in the identity process association with intimacy. Data from 278 female and 156 male emerging adults revealed relationship duration…

  5. An Exploration of the Development of Academic Identity in a School of Education

    ERIC Educational Resources Information Center

    White, Elizabeth; Roberts, Amanda; Rees, Mary; Read, Mary

    2014-01-01

    This paper explores the complex processes involved in the self-construction of academic identity in a UK School of Education. Building on seminal literature in this field and drawing on the research of four academics, it begins by discussing teacher educators' varying perceptions of the need to re-configure their identity to meet the…

  6. Body identical hormone replacement.

    PubMed

    Panay, Nick

    2014-05-22

    The adverse outcomes seen in the Women's Health Initiative (WHI) (1) were mainly due to an over-dosage of hormones in a relatively elderly population. However, fundamental differences exist between conjugated equine estrogens and 17 beta estradiol and between medroxyprogesterone acetate and natural progesterone. It is likely that these differences also contributed to the adverse outcomes in WHI, which were contrary to the cardiovascular benefits seen in previous observational trials. Recent studies of cardiovascular risk markers in younger women have been designed using predominantly estradiol and natural progesterone (transdermal and oral) as the primary interventions. This paper reviews the effects that body identical estradiol and progesterone can have, both in the physiological environment and also when replaced as transdermal estradiol and micronised oral progesterone. PMID:24879748

  7. Identity orientation and decisional strategies

    Microsoft Academic Search

    Michael D. Berzonsky; Joseph R. Ferrari

    1996-01-01

    Two studies designed to investigate the relationship between identity orientation and decisional strategies are reported. Identity orientation refers to the way in which individuals approach or manage to avoid the tasks of constructing and revising their self-identity. Study 1 revealed that information-oriented individuals reportedly engaged in systematic, vigilant decisional practices whereas diffuse\\/avoidant-oriented subjects resorted to maladaptive decisional strategies including procrastination,

  8. An Identity and Certificate Manager

    E-print Network

    Wu, Brian C

    2007-01-01

    We have designed and implemented a software library, called Identity and Certificate Manager (ICM), for managing, using, and exchanging application-level usernames, users' digital certificates, and cryptographic ...

  9. web identity standards introduction .............................................................................................................87

    E-print Network

    Mullins, Dyche

    web identity standards sectionten 86 contents introduction............................................................................................................... 89-90 tagline and the web .................................................................................................91 tagline and the web: improper use

  10. Social Identity Change: Shifts in Social Identity during Adolescence

    ERIC Educational Resources Information Center

    Tanti, Chris; Stukas, Arthur A.; Halloran, Michael J.; Foddy, Margaret

    2011-01-01

    This study investigated the proposition that adolescence involves significant shifts in social identity as a function of changes in social context and cognitive style. Using an experimental design, we primed either peer or gender identity with a sample of 380 early- (12-13 years), mid- (15-16 years), and late-adolescents (18-20 years) and then…

  11. Multiple identities and identity transition: implications for hong kong

    Microsoft Academic Search

    Marilynn B Brewer

    1999-01-01

    This article examines the concept of dual identity from the perspective of Brewers (1991)optimal distinctiveness theory of group identification. It is argued that two different forms of dual identification with region (Hong Kong) and ethnicity (Chinese) were forged among Hong Kong Chinese residents during the period prior to the transition to SARPRC status. The implications of this model for identity

  12. Threading "Stitches" to Approach Gender Identity, Sexual Identity, and Difference

    ERIC Educational Resources Information Center

    North, Connie E.

    2010-01-01

    As LGBTQI (lesbian, gay, bisexual, transgender, queer/questioning, and intersex) issues become increasingly integrated into multicultural education discourses, we as educators need to examine the implications of our pedagogies for teaching about gender and sexual identities. This article explores my teaching of non-conforming gender identities in…

  13. SUB-IDENTITIES: A HIERARCHICAL IDENTITY MODEL FOR PRACTICAL CONTAINMENT

    E-print Network

    Thain, Douglas

    SUB-IDENTITIES: A HIERARCHICAL IDENTITY MODEL FOR PRACTICAL CONTAINMENT A Thesis Submitted of Master of Science in Computer Science and Engineering by Philip Snowberger, B. A., B. S. Douglas Thain, Director Graduate Program in Computer Science and Engineering Notre Dame, Indiana April 2007 #12;c

  14. Explanatory Identities and Conceptual Change

    ERIC Educational Resources Information Center

    Thagard, Paul

    2014-01-01

    Although mind-brain identity remains controversial, many other identities of ordinary things with scientific ones are well established. For example, air is a mixture of gases, water is H[subscript 2]O, and fire is rapid oxidation. This paper examines the history of 15 important identifications: air, blood, cloud, earth, electricity, fire, gold,…

  15. Consequences of anomalous ward identities

    Microsoft Academic Search

    J. Wess; B. Zumino

    1971-01-01

    The anomalies of Ward identities are shown to satisfy consistency or integrability relations, which restrict their possible form. For the case of SU(3) × SU(3) we verify that the anomalies given by Bardeen satisfy the consistency relations. A solution of the anomalous Ward identities is also given which describes concisely all anomalous contributions to low energy theorems. The contributions to

  16. Fibonacci Identities, Matrices, and Graphs

    ERIC Educational Resources Information Center

    Huang, Danrun

    2005-01-01

    General strategies used to help discover, prove, and generalize identities for Fibonacci numbers are described along with some properties about the determinants of square matrices. A matrix proof for identity (2) that has received immense attention from many branches of mathematics, like linear algebra, dynamical systems, graph theory and others…

  17. Fibonacci numbers and trigonometric identities

    Microsoft Academic Search

    N. Garnier; O. Ramare

    2006-01-01

    Webb & Parberry proved in 1969 a startling trigonometric iden- tity involving Fibonacci numbers. This identity has remained isolated up to now, despite the amount of work on related polynomials. We provide a wide generalization of this identity together with what we believe (and hope!) to be its proper understanding.

  18. Canadian Evacuation and Nisei Identity.

    ERIC Educational Resources Information Center

    Makabe, Tomoko

    1980-01-01

    Japanese Canadians were interviewed to determine the effect of World War II evacuation on their ethnic identity. Older respondents deemphasized issues related to evacuation when discussing their ethnic identity. Younger Japanese Canadians are aware of this "cloud" as part of their ethnic heritage but are unaware of its exact origin. (MK)

  19. Host Identity Protocol - Extended Abstract

    Microsoft Academic Search

    Petri Jokela; Pekka Nikander; Jan Melen; Jukka Ylitalo; Jorma Wall

    In the current Internet, hosts are identified using IP addresses that depend on the topological location of the hosts. In other words, the IP addresses are semantically overloaded since they identify both hosts and topological locations. The Host Identity Protocol (HIP) introduces a way of separating the location and host identity information. It introduces a new namespace, cryptographic in nature,

  20. Exhausting management work: conflicting identities

    Microsoft Academic Search

    Jane Mischenko

    2005-01-01

    Purpose – The primary purpose of this paper is to critically explore managers' experience of work identity in the National Health Service (NHS). Design\\/methodology\\/approach – This paper is unconventional in that it uses an auto-ethnographic approach and poetry as the empirical data from which the conceptual framework evolves. The concepts of identity, power and self are analysed in relation to

  1. Finding Identity: Theory and Data

    ERIC Educational Resources Information Center

    Bucholtz, Mary; Hall, Kira

    2008-01-01

    This commentary responds to the papers in the special issue "Accomplishing identity in bilingual interaction" and particularly to the use of Bucholtz and Hall's (2004a, 2004b, 2005) framework for the linguistic analysis of identities in interaction. The commentary focuses on the relationship between theory and empirical work, with attention to the…

  2. Sexual Identity as a Universal Process

    Microsoft Academic Search

    Frank R. Dillon; Roger L. Worthington; Bonnie Moradi

    \\u000a This chapter summarizes advances in current theoretical and empirical literature on sexual identity development. It proposes\\u000a a model of sexual identity that offers a more global (i.e., non-sexual identity group specific) perspective in comparison\\u000a to existing sexual identity group-specific sexual identity models. Attention to commonalities in sexual identity development\\u000a across sexual identity subgroups can offer a more global perspective that

  3. Body Integrity Identity Disorder

    PubMed Central

    Blom, Rianne M.; Hennekam, Raoul C.; Denys, Damiaan

    2012-01-01

    Introduction Body Integrity Identity Disorder (BIID) is a rare, infrequently studied and highly secretive condition in which there is a mismatch between the mental body image and the physical body. Subjects suffering from BIID have an intense desire to amputate a major limb or severe the spinal cord in order to become paralyzed. Aim of the study is to broaden the knowledge of BIID amongst medical professionals, by describing all who deal with BIID. Methods Somatic, psychiatric and BIID characteristic data were collected from 54 BIID individuals using a detailed questionnaire. Subsequently, data of different subtypes of BIID (i.e. wish for amputation or paralyzation) were evaluated. Finally, disruption in work, social and family life due to BIID in subjects with and without amputation were compared. Results Based on the subjects' reports we found that BIID has an onset in early childhood. The main rationale given for their desire for body modification is to feel complete or to feel satisfied inside. Somatic and severe psychiatric co-morbidity is unusual, but depressive symptoms and mood disorders can be present, possibly secondary to the enormous distress BIID puts upon a person. Amputation and paralyzation variant do not differ in any clinical variable. Surgery is found helpful in all subjects who underwent amputation and those subjects score significantly lower on a disability scale than BIID subjects without body modification. Conclusions The amputation variant and paralyzation variant of BIID are to be considered as one of the same condition. Amputation of the healthy body part appears to result in remission of BIID and an impressive improvement of quality of life. Knowledge of and respect for the desires of BIID individuals are the first steps in providing care and may decrease the huge burden they experience. PMID:22514657

  4. Looking for Daisy: Constructing Teacher Identities

    ERIC Educational Resources Information Center

    Ritchie, Stephen M.

    2009-01-01

    Research on teacher identities is both important and increasing. In this forum contribution I re-interpret assertions about an African American science teacher's identities in terms of Jonathon Turner's ("2002") constructs of role identity and sub-identity. I contest the notion of renegotiation of identities, suggesting that particular role…

  5. Chicana Identity Construction: Pushing the Boundaries

    ERIC Educational Resources Information Center

    Vera, Helen; De Los Santos, Esmeralda

    2005-01-01

    Identity concepts that Chicana feminists have described as central to their developmental experience are not reflected in the traditional views of identity, feminist accounts of women's identity, or ethnic identity theory. Chicana feminist Gloria Anzaldua initially postulated that in the straddling of two cultures, a hybrid or mestiza identity is…

  6. Reminders of a positively stereotyped identity when facing stereotype threat: Identity consistency and identity accessibility as mediating mechanisms

    E-print Network

    Danaher, Kelly

    2011-12-31

    this relationship. Undergraduate women were reminded of negative math performance stereotypes associated with their gender, positive math performance stereotypes associated with their college student identity, both identities, or neither identity. In Study 1, math...

  7. Adaptive regression and ego identity.

    PubMed

    Bilsker, D; Marcia, J E

    1991-03-01

    An inventory of adaptively regressive experiences (Taft Ego Permissiveness Inventory) and the Identity Status Interview were administered to 71 college students (35 female, 36 male). As hypothesized, Moratorium status individuals (actively engaged in identity formation) showed a greater disposition to adaptive regression than did individuals in other statuses. This supports the view that adaptive regression may serve an important function in the identity formation process. Contrary to hypothesis, Achievement status individuals did not show greater disposition to adaptive regression than those in Foresclosure status. Females showed substantially greater disposition to adaptive regression than did males. PMID:2050867

  8. Gender identity in XY intersexuality.

    PubMed

    Sobel, Vivian; Imperato-McGinley, Julianne

    2004-07-01

    The following syndromes of XY intersexuality are reviewed: 5alpha-reductase-2 deficiency, 17beta-hydroxysteroid dehydrogenase-3 deficiency, and complete and partial androgen insensitivity with attention focused on issues of gender identity. Each syndrome, with its unique presentation, provides an opportunity to explore the relative effects of nature (androgens) versus nurture (sex of rearing) in gender identity development. The phenomenon of gender role reversal in these conditions is described and theories on the determinants of gender identity formation are proposed. Issues of importance to psychiatrists in treating patients who have these conditions also are discussed. PMID:15183376

  9. Time varying velocity of light

    E-print Network

    Tiwari, S C

    2002-01-01

    Recently there has been a lot of intersest in the superluminal phenomena, and time varying velocity of light cosmological models. More than two decades ago at Einstein centenary symposium, Nagpur I had put forward space-time interaction hypothesis. One of its predictions was that velocity of light decreased with the age of Universe. In view of the profoundness of the hypothesis the original paper is reproduced here. We also mention that in a paper "Quasars, Tachyons and the early universe" proc. Einstein found. Intnl. 2(3), 1985 pp 69-75, it was suggested that, "The boundary region of the universe being the source of radiation, the slowing down of the speed of radiation from $4.4 \\times 10^{10}$ cm/sec at $t_A = 10^{10}$ yrs. to the present value of $3 \\times 10^{10}$ cm/sec should show up as a large red shifts. The successive boundary region radiations at various epoch will give rise to a wide range of red shifts. Therefore, defining quasars as the objects having two properties: large red shifts and powerful...

  10. Local varying-alpha theories

    NASA Astrophysics Data System (ADS)

    2015-06-01

    In a recent paper, we demonstrated how the simplest model for varying-alpha may be interpreted as the effect of a dielectric material, generalized to be consistent with Lorentz invariance. Unlike normal dielectrics, such a medium cannot change the speed of light, and its dynamics obey a Klein-Gordon equation. This work immediately suggests an extension of the standard theory, even if we require compliance with Lorentz invariance. Instead of a wave equation, the dynamics may satisfy a local algebraic relation involving the permittivity and the properties of the electromagnetic (EM) field, in analogy with more conventional dielectric (but still preserving Lorentz invariance). We develop the formalism for such theories and investigate some phenomenological implications. The problem of the divergence of the classical self-energy can be solved, or at least softened, in this framework. Some interesting new cosmological solutions for the very early universe are found, including the possibility of a bounce, inflation and expansion with a loitering phase, all of which are induced by early variations in alpha.

  11. Can Salience of Gender Identity Impair Math Performance among 7-8 Years Old Girls? The Moderating Role of Task Difficulty

    ERIC Educational Resources Information Center

    Neuville, Emmanuelle; Croizet, Jean-Claude

    2007-01-01

    Can the salience of gender identity affect the math performance of 7-8 year old girls? Third-grade girls and boys were required to solve arithmetical problems of varied difficulty. Prior to the test, one half of the participants had their gender identity activated. Results showed that activation of gender identity affected girls' performance but…

  12. A THETA FUNCTION IDENTITY AND ITS IMPLICATIONS

    E-print Network

    with four parameters by employing the complex variable theory of el- liptic functions. This identity the classical theory of elliptic function. In Section 3, the following theta function identity is first proved A THETA FUNCTION IDENTITY AND ITS IMPLICATIONS

  13. 21 CFR 701.11 - Identity labeling.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2010-04-01 true Identity labeling. 701.11 Section 701...LABELING Package Form § 701.11 Identity labeling. (a) The principal...principal features a statement of the identity of the commodity. (b) Such...

  14. 21 CFR 701.11 - Identity labeling.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Identity labeling. 701.11 Section 701...LABELING Package Form § 701.11 Identity labeling. (a) The principal...principal features a statement of the identity of the commodity. (b) Such...

  15. 7 CFR 52.771 - Identity.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...Grades of Canned Red Tart Pitted Cherries 1 Identity and Grades § 52...Identity. Canned red tart pitted cherries is the product represented as...standard of identity for canned cherries (21 CFR 145.125(a)),...

  16. 7 CFR 52.771 - Identity.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...Grades of Canned Red Tart Pitted Cherries 1 Identity and Grades § 52...Identity. Canned red tart pitted cherries is the product represented as...standard of identity for canned cherries (21 CFR 145.125(a)),...

  17. 7 CFR 52.771 - Identity.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...Grades of Canned Red Tart Pitted Cherries 1 Identity and Grades § 52...Identity. Canned red tart pitted cherries is the product represented as...standard of identity for canned cherries (21 CFR 145.125(a)),...

  18. 7 CFR 52.771 - Identity.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...Grades of Canned Red Tart Pitted Cherries 1 Identity and Grades § 52...Identity. Canned red tart pitted cherries is the product represented as...standard of identity for canned cherries (21 CFR 145.125(a)),...

  19. 7 CFR 52.771 - Identity.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...Grades of Canned Red Tart Pitted Cherries 1 Identity and Grades § 52...Identity. Canned red tart pitted cherries is the product represented as...standard of identity for canned cherries (21 CFR 145.125(a)),...

  20. Identity Politics and Critical Pedagogy.

    ERIC Educational Resources Information Center

    Bromley, Hank

    1989-01-01

    This essay investigates what identity politics may have to contribute to the reformation of Marxist theories of education through considering how it would theorize the practice of explicitly critical pedagogy. (IAH)

  1. Official University Identity Standards Manual

    E-print Network

    Long, Nicholas

    Official University Identity Standards Manual #12;#12;Table of Contents Graphic Design Guide #12;#12;Graphic Design Guide I. Introduction...................................................................................14 continued on next page #12;GRAPHIC DESIGN GUIDE TABLE OF CONTENTS VI. Athletic logos

  2. Effect of varying light intensity on welfare indices of broiler chickens grown to heavy weights

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The effects of varying light-intensity on ocular, immue, fear, and leg health of broiler chickens grown to heavy weights under environmentally controlled conditions were evaluated. Four identical trials were conducted with two replications per trial. In each trial, 600 Ross 308 chicks were randomly ...

  3. Camera calibration using identical objects

    Microsoft Academic Search

    Ruiyan Wang; Guang Jiang; Long Quan; Chengke Wu

    This paper describes a method for camera calibration using identical products. In this paper, we postulate an imaginative\\u000a rigid motion between any two identical products, and the imaginative rigid motion could offer a pair of circular points. As\\u000a is known, three pairs of projections of the circular points are needed to result in the closed-form solution for calibration.\\u000a In our

  4. Arguesian Identities in Invariant Theory

    Microsoft Academic Search

    Michael Hawrylycz

    1996-01-01

    Having been motivated by an example of Doubilet, Rota, and Stein [Stud. Appl. Math.56(1976), 185–216], we present a technique for constructing geometric identities in a Grassmann–Cayley algebra. Each identity represents a projective invariant closely related to the Theorem of Desargues in the plane and its generalizations to higher dimensional projective space. The construction employs certain combinatorial properties of matchings in

  5. Fibonacci Identities and Graph Colorings

    E-print Network

    Christopher J. Hillar; Troels Windfeldt

    2008-07-08

    We generalize both the Fibonacci and Lucas numbers to the context of graph colorings, and prove some identities involving these numbers. As a corollary we obtain new proofs of some known identities involving Fibonacci numbers such as \\[F_{r+s+t} = F_{r+1}F_{s+1}F_{t+1} + F_r F_s F_t - F_{r-1}F_{s-1}F_{t-1}.\\

  6. Bringing Identity Theory into Leisure

    E-print Network

    Jun, Jinhee

    2010-01-14

    of an identity on individuals? behavior has received considerable attention in social and behavioral sciences cutting across disciplines from psychoanalysis and psychology to political science and sociology (Burke, Owen, Serpe, & Thoits, 2003). According... diverse range of individual behavior in the social and behavioral sciences (e.g., psychoanalysis, psychology, political science, sociology, and history). In the context of leisure research, identity is more often alluded to through researchers? use...

  7. Social Identity and Intergroup Conflict

    Microsoft Academic Search

    Ananthi Al Ramiah; Miles Hewstone; Katharina Schmid

    2011-01-01

    This paper explores why people identify with social groups and what this identification signifies for their sense of self,\\u000a status in society and intergroup conflict. We describe various theories of social identity to elucidate ways in which individuals\\u000a can negotiate their different social identities, and what this means for intergroup relations. We consider the implications\\u000a for both majority and minority

  8. The implicit identity effect: identity primes, group size, and helping.

    PubMed

    Levine, Mark; Cassidy, Clare; Jentzsch, Ines

    2010-12-01

    Three studies consider the implicit bystander effect in the light of recent advances in social identity approaches to helping. Drawing on the social identity model of deindividuation effects we argue that the implicit bystander effect is shaped not by the number of others imagined, but by who those others are imagined to be. Studies 1 and 2 demonstrate that, when group membership is primed, increasing group size can facilitate helping in line with the norms and values of the group. Study 3 explores mediation processes in group level helping. As group size increases, female participants react faster to words associated with communalism when others are imagined as women rather than strangers. The paper demonstrates that group size and helping behaviour is qualified by an implicit identity effect. PMID:20122306

  9. Changes in identity after aphasic stroke: implications for primary care.

    PubMed

    Musser, Benjamin; Wilkinson, Joanne; Gilbert, Thomas; Bokhour, Barbara G

    2015-01-01

    Background. Stroke survivors with aphasia experience difficulty associated with their communication disorder. While much has been written about aphasia's impacts on partners/family, we lack data regarding the psychosocial adjustment of aphasic stroke survivors, with a paucity of data from the patients themselves. Methods. Qualitative study of lived experiences of individuals with poststroke aphasia. Each of the stroke survivors with aphasia completed 3-4 semistructured interviews. In most cases, patients' partners jointly participated in interviews, which were transcribed and analyzed using techniques derived from grounded theory. Results. 12 patients were interviewed, with the total of 45 interviews over 18 months. Themes included poststroke changes in patients' relationships and identities, which were altered across several domains including occupational identity, relationship and family roles, and social identity. While all these domains were impacted by aphasia, the impact varied over time. Conclusion. Despite the challenges of interviewing individuals with aphasia, we explored aphasia's impacts on how individuals experience their identity and develop new identities months and years after stroke. This data has important implications for primary care of patients with aphasia, including the importance of the long-term primary care relationship in supporting psychosocial adjustment to life after aphasic stroke. PMID:25685553

  10. Color Constancy for Scenes with Varying Illumination (Color Constancy with Varying Illumination)

    E-print Network

    Barnard, Kobus

    Color Constancy for Scenes with Varying Illumination (Color Constancy with Varying Illumination, Graham Finlayson, and Brian Funt, ``Colour constancy for scenes with varying illumination,'' Computer Abstract We present an algorithm which uses information from both surface reflectance and illumination

  11. Color Constancy for Scenes with Varying Illumination (Color Constancy with Varying Illumination)

    E-print Network

    Barnard, Kobus

    Color Constancy for Scenes with Varying Illumination (Color Constancy with Varying Illumination, Graham Finlayson, and Brian Funt, "Colour constancy for scenes with varying illumination," Computer;2 Abstract We present an algorithm which uses information from both surface reflectance and illumination

  12. Gender-Role Identity and Perceived Peer Group Acceptance among Early Adolescents in Belgian Mixed and Single-Sex Schools

    ERIC Educational Resources Information Center

    Brutsaert, Herman

    2006-01-01

    Drawing on survey data, this paper explores the association between early adolescents' gender-role identity and sense of peer group acceptance, and how this association may vary as a function of the gender context of the school. Two indicators of gender-role identity were included in the analysis: in one measure the items reflect features of…

  13. Hungarian Youth in Transylvania Discuss Hybrid Notions of Civic Identity: Making the Case for Cultural Preservation and Multilingualism

    ERIC Educational Resources Information Center

    Obenchain, Kathryn M.; Alarcón, Jeannette; Ives, Bob; Bellows, Elizabeth; Alama, Madalina

    2014-01-01

    This study aims to understand ways in which Hungarian high school students describe and articulate their civic identity, as members of varied civic communities. We conducted our study in Romania, an emerging democracy with an Hungarian national minority, as it provides a unique opportunity to examine the development of a democratic civic identity

  14. New Directions in Identity Control Theory

    Microsoft Academic Search

    Jan E. Stets; Peter J. Burke

    Identity control theory has long posited that there are positive emotional consequences to identity verification and negative emotional consequences to the lack of identity verification (Burke, 1991). While some of the positive consequences of identity verification have been discussed (Burke and Stets, 1999; Cast and Burke, 2002), little work has been done to elaborate the va- riety of negative emotions

  15. A Dialogical Approach to Conceptualizing Teacher Identity

    ERIC Educational Resources Information Center

    Akkerman, Sanne F.; Meijer, Paulien C.

    2011-01-01

    In recent attempts to address the notion of teacher identity, scholars have stressed how identity is dynamically evolving, intrinsically related to others, and consists of multiple identities. Though these postmodern characterizations represent radically new perceptions of identity, they are not extensively discussed in relation to previous…

  16. The Moral Self: Applying Identity Theory

    ERIC Educational Resources Information Center

    Stets, Jan E.; Carter, Michael J.

    2011-01-01

    This research applies identity theory to understand the moral self. In identity theory, individuals act on the basis of their identity meanings, and they regulate the meanings of their behavior so that those meanings are consistent with their identity meanings. An inconsistency produces negative emotions and motivates individuals to behave…

  17. Identity maintenance and cognitive test performance

    Microsoft Academic Search

    Reef Youngreen; Bridget Conlon; Dawn T. Robinson; Michael J. Lovaglia

    2009-01-01

    Identity maintenance processes can affect performance when that performance is relevant to an important self-identity, including performance on standardized tests of mental ability. Affect control theory proposes that individuals’ performances are motivated to maintain concordance between fundamental sentiments about identities and contextually driven transient meanings. An experimental test used the college major identity and randomly assigned participants to different instruction

  18. Teacher Identity Work in Mathematics Teacher Education

    ERIC Educational Resources Information Center

    Neumayer-Depiper, Jill

    2013-01-01

    Becoming a teacher is not developing an identity, but is developing identity as a continuous process of constructing and deconstructing understandings within the complexities of social practice, beliefs, experiences, and social norms. I take up this stance on identity as articulated in Judith Butler's (1999) work with gender identity and…

  19. Helping Survivors Find New Identity through an Innovative "Identity Typology."

    ERIC Educational Resources Information Center

    Berger, Susan A.

    This study looks at the influence of worldview on long-term survivors of loss and the subsequent identity these survivors assume years after the formal grieving process has occurred. Emphasis is placed on the perspective survivors develop over time. Information from nearly 80 survivors of childhood loss indicated that there are certain patterns in…

  20. Identity Based Group Signatures from Hierarchical Identity-Based Encryption

    E-print Network

    consider a trusted authority that generates system-wide parameters. We model and explore the realistic scenario where the same set of system parameters is shared by multiple groups of signers. Users can join are those of full-anonymity and full- traceability. Full-anonymity captures the idea that the identity

  1. "Doing Identity" in the Botswana Classroom: Negotiating Gendered Institutional Identities

    ERIC Educational Resources Information Center

    Humphreys, Sara

    2013-01-01

    Drawing on post-structural and post-colonial conceptions of gender, this paper explores multiple student masculinities and femininities in the classrooms of four junior secondary schools in Botswana. These gendered identities, it is argued, are negotiated within broader institutional constraints that have been socio-historically produced. Such…

  2. Quantum MacWilliams Identities

    E-print Network

    Peter Shor; Raymond Laflamme

    1996-10-25

    We derive a relationship between two different notions of fidelity (entanglement fidelity and average fidelity) for a completely depolarizing quantum channel. This relationship gives rise to a quantum analog of the MacWilliams identities in classical coding theory. These identities relate the weight enumerator of a code to the one of its dual and, with linear programming techniques, provided a powerful tool to investigate the possible existence of codes. The same techniques can be adapted to the quantum case. We give examples of their power.

  3. Building a Common Identity Common identity is an important tool in ensuring appropriate access to corporate

    E-print Network

    Chaudhuri, Surajit

    Building a Common Identity Common identity is an important tool in ensuring appropriate access to corporate information. Without an efficient method of establishing and maintaining a common identity across. Forefront Identity Manager (FIM) 2010 R2 helps you resolve these issues by providing self-service identity

  4. Identities for the Fibonacci Powers

    ERIC Educational Resources Information Center

    Chen, Alex; Chen, Hongwei

    2008-01-01

    Based on the generating functions, for any positive integers "n" and "k", identities are established and the explicit formula for a[subscript i](k) in terms of Fibonomial coefficients are presented. The corresponding results are extended to some other famous sequences including Lucas and Pell sequences.

  5. Cultural Identity in Korean English

    ERIC Educational Resources Information Center

    Chang, Bok-Myung

    2010-01-01

    This study aims to investigate the cultural identity of Korean English and to make the intercultural communications among non-native speakers successful. The purposes of this study can be summarized as follows: 1) to recognize the concept of English as an International Language (EIL), 2) to emphasize cross-cultural understanding in the globalized…

  6. Performances of Jewish Identity: Spartacus

    Microsoft Academic Search

    Margaret Burton

    2008-01-01

    Produced at the height of the cold war, the gladiator film Spartacus (1960) is recognized as an answer to HUAC’s redbaiting members of the Hollywood film community. Unexplored, however, has been the hypothesis that the film is a production expressing cultural aspects of Jewish identity and memory. Considering the multiple authorship of Howard Fast, Dalton Trumbo, Kirk Douglas, and Stanley

  7. Outcomes of the Abel Identity

    E-print Network

    Petrullo, Pasquale

    2011-01-01

    Through symbolic methods, we state explicit formulae for Tchebychev, Gegenbauer, Meixner, Mittlag-Leffler, and Pidduck polynomials. This is done by underlining the crucial role played by the Abel identity in revisiting the Lagrange inversion formula and the theory of the Riordan arrays.

  8. The Measurement of Role Identity

    ERIC Educational Resources Information Center

    Burke, Peter J.; Tully, Judy C.

    1977-01-01

    Outlines a procedure for measuring those components of the self-concept called role/indentities, conceptualized from a symbolic interaction framework and using the semantic differential and discriminant analysis. The method is illustrated by measuring the gender role/identity of a sample of sixth, seventh, and eighth grade school children.…

  9. New identities in dendriform algebras

    Microsoft Academic Search

    Kurusch Ebrahimi-Fard; Dominique Manchon; FRED ´ ERIC PATRAS

    2008-01-01

    Dendriform structures arise naturally in algebraic combinatorics (where they allow, for example, the splitting of the shuffle product into two pieces) and through Rota–Baxter algebra structures (the latter appear, among others, in differential systems and in the renormalization process of pQFT). We prove new combinatorial identities in dendriform algebras that appear to be strongly related to classical phenomena, such as

  10. Cultural Identity in Tibetan Diasporas

    ERIC Educational Resources Information Center

    Giles, Howard; Dorjee, Tenzin

    2005-01-01

    Tibetan civilisation is over two millenniums old and, today, its struggles in diaspora open up a new chapter in Tibetan history. Diasporic Tibetans (e.g. in India and the USA) have made tremendous efforts over the last few decades to maintain their way of life. We focus on cultural identity in the Tibetan diasporas, with special attention focused…

  11. 6 Keys to Identity Management

    ERIC Educational Resources Information Center

    Shoham, Idan

    2011-01-01

    An Identity and Access Management (IAM) project on campus can feel like a Sisyphean task: Just when access rights have finally been sorted out, the semester ends--and users change roles, leave campus, or require new processes. IT departments face a constantly changing technical landscape: (1) integrating new applications and retiring old ones; (2)…

  12. Counselor Identity: Conformity or Distinction?

    ERIC Educational Resources Information Center

    McLaughlin, Jerry E.; Boettcher, Kathryn

    2009-01-01

    The authors explore 3 debates in other disciplines similar to counseling's identity debate in order to learn about common themes and outcomes. Conformity, distinction, and cohesion emerged as common themes. They conclude that counselors should retain their distinctive, humanistic approach rather than conforming to the dominant, medical approach.

  13. Developing Designer Identity through Reflection

    ERIC Educational Resources Information Center

    Tracey, Monica W.; Hutchinson, Alisa

    2013-01-01

    As designers utilize design thinking while moving through a design space between problem and solution, they must rely on design intelligence, precedents, and intuition in order to arrive at meaningful and inventive outcomes. Thus, instructional designers must constantly re-conceptualize their own identities and what it means to be a designer.…

  14. Zero knowledge proofs of identity

    Microsoft Academic Search

    U. Fiege; Amos Fiat; Adi Shamir

    1987-01-01

    In this paper we extend the notion of zero knowledge proofs of membership (which reveal one bit of information) to zero knowledge proofs of knowledge (which reveal no information whatsoever). After formally defining this notion, we show its relevance to identification schemes, in which parties prove their identity by demonstrating their knowledge rather than by proving the validity of assertions.

  15. ADOPTIVE FAMILIES: IDENTITY AND DIFFERENCE

    Microsoft Academic Search

    Suzana Sofia; Moeller Schettini

    The present paper discusses the specificities of the adoptive parenthood, while pointing out remarkable differences on the constitution of adoptive parents' identity, and when defining important elements for a preventive assistance. In the adoption process, the child is placed into a new family in a way, which is very different from a natural birth, that is, with a pre-adoptive life

  16. Young Adult Identities and Their Pathways: A Developmental and Life Course Model

    PubMed Central

    Benson, Janel E.; Elder, Glen H.

    2013-01-01

    Developmental and life course studies of young adult identities have focused on two dimensions, subjective age and psychosocial maturity. This study examines the developmental synchrony of these two processes. In a longitudinal sample of young adults from Add Health (18 to 22), a person-centered analysis of indicators of these dimensions identified four identity profiles. Two depict early and late patterns of identity; the others represent contrasting types of discordance, “pseudo-adult”, subjective age more advanced than maturation level and “anticipatory”, with subjective age less advanced than maturational level. The profiles vary by gender, socioeconomic status, and race-ethnicity as well as by adolescent (ages12–16) pubertal maturation, psychosocial adjustment, and family context. These results provide support for a more holistic, interdisciplinary understanding of adult identity, and show that young adult identities in the Add Health sample follow differentiated paths into the adult years, with largely unknown consequences for the subsequent life course. PMID:21668096

  17. The concept of identity: research and theory.

    PubMed

    Newman, B M; Newman, P R

    1978-01-01

    The concept of identity is one of the few themes of psychosocial theory that has been researched directly. The dichotomy between identity achievement and role diffusion can be more accurately understood as two potential statuses among a number of resolutions to the identity crisis. Identity status appears to be related to significant childrearing experiences, particularly to dimensions of warmth, limit setting, values of autonomy, and achievement orientation. The pattern of identity achievement is different for males and females. Successful achievement of identity reflects different parental child-rearing practices for males and females. PMID:352102

  18. Identification of linear parameter varying models

    Microsoft Academic Search

    B. Bamieh; L. Giarre

    1999-01-01

    We consider the problem of identifying discrete-time linear parameter varying models of nonlinear or time-varying systems. We assume that inputs, outputs and the scheduling parameters are measured, and a form of the functional dependence of the coefficients on the parameters. We show how the identification problem can be reduced to a linear regression, and we give conditions on persistency of

  19. Robust identification of linear parameter varying systems

    Microsoft Academic Search

    Maria Cecilia Mazzaro; E. A. Movsichoff; R. S. S. Pena

    1999-01-01

    We study the robust identification problem for a special class of linear parameter varying systems, when it is assumed that there is only one varying parameter and all the states of the system under identification can be measured. We consider a worst-case approach, i.e., we look for a set of models in a class of systems defined a priori, which

  20. Fractal analysis of time varying data

    DOEpatents

    Vo-Dinh, Tuan (Knoxville, TN); Sadana, Ajit (Oxford, MS)

    2002-01-01

    Characteristics of time varying data, such as an electrical signal, are analyzed by converting the data from a temporal domain into a spatial domain pattern. Fractal analysis is performed on the spatial domain pattern, thereby producing a fractal dimension D.sub.F. The fractal dimension indicates the regularity of the time varying data.

  1. A Varying-e Brane World Cosmology

    NASA Astrophysics Data System (ADS)

    Youm, Donam

    We study a varying electric charge brane world cosmology in the RS2 model obtained from a varying-speed-of-light brane world cosmology by redefining the system of units. We elaborate conditions under which the flatness problem and the cosmological constant problem can be resolved by such cosmological model.

  2. Silos and Social Identity: The Social Identity Approach as a Framework for Understanding and Overcoming Divisions in Health Care

    PubMed Central

    Kreindler, Sara A; Dowd, Damien A; Dana Star, Noah; Gottschalk, Tania

    2012-01-01

    Context One of health care's foremost challenges is the achievement of integration and collaboration among the groups providing care. Yet this fundamentally group-related issue is typically discussed in terms of interpersonal relations or operational issues, not group processes. Methods We conducted a systematic search for literature offering a group-based analysis and examined it through the lens of the social identity approach (SIA). Founded in the insight that group memberships form an important part of the self-concept, the SIA encompasses five dimensions: social identity, social structure, identity content, strength of identification, and context. Findings Our search yielded 348 reports, 114 of which cited social identity. However, SIA-citing reports varied in both compatibility with the SIA's metatheoretical paradigm and applied relevance to health care; conversely, some non-SIA-citers offered SIA-congruent analyses. We analyzed the various combinations and interpretations of the five SIA dimensions, identifying ten major conceptual currents. Examining these in the light of the SIA yielded a cohesive, multifaceted picture of (inter)group relations in health care. Conclusions The SIA offers a coherent framework for integrating a diverse, far-flung literature on health care groups. Further research should take advantage of the full depth and complexity of the approach, remain sensitive to the unique features of the health care context, and devote particular attention to identity mobilization and context change as key drivers of system transformation. Our article concludes with a set of “guiding questions” to help health care leaders recognize the group dimension of organizational problems, identify mechanisms for change, and move forward by working with and through social identities, not against them. PMID:22709391

  3. Threats to Feminist Identity and Reactions to Gender Discrimination.

    PubMed

    Cichocka, Aleksandra; Golec de Zavala, Agnieszka; Kofta, Mirek; Rozum, Joanna

    2013-05-01

    The aim of this research was to examine conditions that modify feminists' support for women as targets of gender discrimination. In an experimental study we tested a hypothesis that threatened feminist identity will lead to greater differentiation between feminists and conservative women as victims of discrimination and, in turn, a decrease in support for non-feminist victims. The study was conducted among 96 young Polish female professionals and graduate students from Gender Studies programs in Warsaw who self-identified as feminists (M age ?=?22.23). Participants were presented with a case of workplace gender discrimination. Threat to feminist identity and worldview of the discrimination victim (feminist vs. conservative) were varied between research conditions. Results indicate that identity threat caused feminists to show conditional reactions to discrimination. Under identity threat, feminists perceived the situation as less discriminatory when the target held conservative views on gender relations than when the target was presented as feminist. This effect was not observed under conditions of no threat. Moreover, feminists showed an increase in compassion for the victim when she was portrayed as a feminist compared to when she was portrayed as conservative. Implications for the feminist movement are discussed. PMID:23606785

  4. Schmidt balls around the identity

    E-print Network

    Lieven Clarisse

    2005-12-01

    Robustness measures as introduced by Vidal and Tarrach [PRA, 59, 141-155] quantify the extent to which entangled states remain entangled under mixing. Analogously, we introduce here the Schmidt robustness and the random Schmidt robustness. The latter notion is closely related to the construction of Schmidt balls around the identity. We analyse the situation for pure states and provide non-trivial upper and lower bounds. Upper bounds to the random Schmidt-2 robustness allow us to construct a particularly simple distillability criterion. We present two conjectures, the first one is related to the radius of inner balls around the identity in the convex set of Schmidt number n-states. We also conjecture a class of optimal Schmidt witnesses for pure states.

  5. Bringing Identity Theory into Leisure 

    E-print Network

    Jun, Jinhee

    2010-01-14

    leisure and the roles that accompany other identities compete for limited resources (Stebbins, 1979). The realization of this conflict gives rise to the experience of constraints to leisure and the perception of limited available resources to negotiate...). The notion of side bets being an underlying mechanism for sociological commitment is captured in the process of self-verification. Since self-verification occurs during interaction with others (Swann, 1987; Swann, Pelham & Krull, 1989; Stebbins, 1992...

  6. Tracing the Identity of Objects

    ERIC Educational Resources Information Center

    Rips, Lance J.; Blok, Sergey; Newman, George

    2006-01-01

    This article considers how people judge the identity of objects (e.g., how people decide that a description of an object at one time, t-sub-0, belongs to the same object as a description of it at another time, t-sub-1). The authors propose a causal continuer model for these judgments, based on an earlier theory by Nozick (1981). According to this…

  7. Identity, Genocide, and Group Violence

    Microsoft Academic Search

    David Moshman

    \\u000a Social identity is typically multidimensional, involving connections and commitments to multiple overlapping groups. Because\\u000a abstract groups such as nations, cultures, or religions have the potential to outlast the individuals who compose them at\\u000a any given point in time, affiliation with such groups provides a sense of continuity, permanence, and meaning. Thus, we are\\u000a highly motivated to act on behalf of

  8. Parfit, personal identity, and what matters 

    E-print Network

    Splawn, Clay Davis

    1996-01-01

    , relation R. I examine the critical notion of "quasi" psychology and attack it on two grounds. First, I argue that it is not entirely clear that Parfit's description eliminates the necessity of personal identity: quasi-memory itself presupposes identity...

  9. Phenotypic Bias and Ethnic Identity in Filipino Americans*

    PubMed Central

    Kiang, Lisa; Takeuchi, David T.

    2009-01-01

    Objective Links between phenotypes (skin tone, physical features) and a range of outcomes (income, physical health, psychological distress) were examined. Ethnic identity was examined as a protective moderator of phenotypic bias. Method Data were from a community sample of 2,092 Filipino adults in San Francisco and Honolulu. Results After controlling for age, nativity, marital status, and education, darker skin was associated with lower income and lower physical health for females and males. For females, more ethnic features were associated with lower income. For males, darker skin was related to lower psychological distress. One interaction was found such that females with more ethnic features exhibited lower distress; however, ethnic identity moderated distress levels of those with less ethnic features. Conclusions Phenotypic bias appears prevalent in Filipino Americans though specific effects vary by gender and skin color versus physical features. Discussion centers on the social importance of appearance and potential strengths gained from ethnic identification. PMID:20107617

  10. Propagation and perfect transmission in three-waveguide axially varying couplers

    NASA Astrophysics Data System (ADS)

    Rodríguez-Lara, B. M.; Moya-Cessa, H. M.; Christodoulides, D. N.

    2014-01-01

    We study a class of three-waveguide axially varying structures whose dynamics are described by the su(3) algebra. Their analytic propagator can be found based on the corresponding Lie group generators. In particular, we show that the field propagator corresponding to three-waveguide structures that have arbitrarily varying coupling coefficients and identical refractive indices is associated with the orbital angular momentum algebra. The conditions necessary to achieve perfect transmission from the first to the last waveguide element are obtained and particular cases are elucidated analytically.

  11. Homotopy Type Theory Structure Identity Principle

    E-print Network

    Homotopy Type Theory and the Structure Identity Principle Peter Aczel February 7, 2012 #12;Some, homotopy theory and homotopy type theory (HoTT) III(3): The Structure Identity Principle (SIP) IV(3 dimensional category theory, homotopy theory and homotopy type theory (HoTT) III(3): The Structure Identity

  12. Discovering Identity Problems: A Case Study

    Microsoft Academic Search

    Alan Gang Wang; Homa Atabakhsh; Tim Petersen; Hsinchun Chen

    2005-01-01

    Identity resolution is central to fighting against crime and terrorist activities in various ways. Current information systems and technologies deployed in law enforcement agencies are neither adequate nor effective for identity resolution. In this research we conducted a case study in a local police department on problems that produce difficulties in retrieving identity information. We found that more than half

  13. Identity Verification, Control, and Aggression in Marriage

    ERIC Educational Resources Information Center

    Stets, Jan E.; Burke, Peter J.

    2005-01-01

    In this research we study the identity verification process and its effects in marriage. Drawing on identity control theory, we hypothesize that a lack of verification in the spouse identity (1) threatens stable self-meanings and interaction patterns between spouses, and (2) challenges a (nonverified) spouse's perception of control over the…

  14. Fibonacci Identities via the Determinant Sum Property

    ERIC Educational Resources Information Center

    Spivey, Michael

    2006-01-01

    We use the sum property for determinants of matrices to give a three-stage proof of an identity involving Fibonacci numbers. Cassini's and d'Ocagne's Fibonacci identities are obtained at the ends of stages one and two, respectively. Catalan's Fibonacci identity is also a special case.

  15. 21 CFR 610.14 - Identity.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 2014-04-01 false Identity. 610.14 Section 610.14 Food...STANDARDS General Provisions § 610.14 Identity. The contents of a final container...filling of each lot shall be tested for identity after all labeling operations shall...

  16. The Identity Management Problem --A Short Survey

    E-print Network

    Guibas, Leonidas J.

    The Identity Management Problem -- A Short Survey Leonidas J. Guibas Computer Science Department Stanford University Stanford, CA 94305, U.S.A. Email: guibas@cs.stanford.edu Abstract--The identity and target identities, based on observations made by sen- sors. Updates of the belief state can happen

  17. Institutional Identity Guide forMillersvilleUniversity

    E-print Network

    Hardy, Christopher R.

    Institutional Identity Guide forMillersvilleUniversity Published by University Communications & Marketing Last updated March 2014 #12;2Institutional Identity Guide for Millersville University CONTENTS Introduction 3 About the Identity 3 University Logo 4 Logo Color Usage 5 Logo Treatment 6-7 University Seal 8

  18. Identity and deception in the virtual community

    Microsoft Academic Search

    Judith S. Donath

    1997-01-01

    Identity plays a key role in virtual communities. In communication, which is the primary activity, knowing the identity of those with whom you communicate is essential for understanding and evaluating an interaction. Yet in the disembodied world of the virtual community, identity is also ambiguous. Many of the basic cues about personality and social role we are accustomed to in

  19. 7 CFR 782.14 - Identity preservation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...2014-01-01 2014-01-01 false Identity preservation. 782.14 Section 782...End-Use Certificate Program § 782.14 Identity preservation. (a) The importer...the imported wheat shall preserve the identity of the Canadian-produced...

  20. 7 CFR 782.14 - Identity preservation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...2012-01-01 2012-01-01 false Identity preservation. 782.14 Section 782...End-Use Certificate Program § 782.14 Identity preservation. (a) The importer...the imported wheat shall preserve the identity of the Canadian-produced...

  1. 21 CFR 610.14 - Identity.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 2012-04-01 false Identity. 610.14 Section 610.14 Food...STANDARDS General Provisions § 610.14 Identity. The contents of a final container...filling of each lot shall be tested for identity after all labeling operations shall...

  2. 7 CFR 782.14 - Identity preservation.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...2013-01-01 2013-01-01 false Identity preservation. 782.14 Section 782...End-Use Certificate Program § 782.14 Identity preservation. (a) The importer...the imported wheat shall preserve the identity of the Canadian-produced...

  3. 21 CFR 610.14 - Identity.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 2013-04-01 false Identity. 610.14 Section 610.14 Food...STANDARDS General Provisions § 610.14 Identity. The contents of a final container...filling of each lot shall be tested for identity after all labeling operations shall...

  4. 40 CFR 725.85 - Microorganism identity.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...2011-07-01 false Microorganism identity. 725.85 Section 725.85 Protection...Information § 725.85 Microorganism identity. (a) Claims applicable to the...portions of the specific microorganism identity at the time of submission of the...

  5. 40 CFR 720.85 - Chemical identity.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...2011-07-01 2011-07-01 false Chemical identity. 720.85 Section 720.85 Protection...to Information § 720.85 Chemical identity. (a) Claims applicable to the...claim of confidentiality for the chemical identity of the new chemical...

  6. 21 CFR 610.14 - Identity.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Identity. 610.14 Section 610.14 Food...STANDARDS General Provisions § 610.14 Identity. The contents of a final container...filling of each lot shall be tested for identity after all labeling operations shall...

  7. 7 CFR 782.14 - Identity preservation.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...2010-01-01 2010-01-01 false Identity preservation. 782.14 Section 782...End-Use Certificate Program § 782.14 Identity preservation. (a) The importer...the imported wheat shall preserve the identity of the Canadian-produced...

  8. 40 CFR 725.85 - Microorganism identity.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...2010-07-01 false Microorganism identity. 725.85 Section 725.85 Protection...Information § 725.85 Microorganism identity. (a) Claims applicable to the...portions of the specific microorganism identity at the time of submission of the...

  9. Career Identity among Community College Students

    ERIC Educational Resources Information Center

    Stringer, Kate J.; Kerpelman, Jennifer L.

    2014-01-01

    Career identity development is salient in adolescence and young adulthood, but little research has assessed career identity in populations other than four-year college students. Context should be considered when examining career identity, and to address this gap in the literature, the current study examined the extent to which parental support for…

  10. 7 CFR 782.14 - Identity preservation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...2011-01-01 2011-01-01 false Identity preservation. 782.14 Section 782...End-Use Certificate Program § 782.14 Identity preservation. (a) The importer...the imported wheat shall preserve the identity of the Canadian-produced...

  11. 21 CFR 610.14 - Identity.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2010-04-01 true Identity. 610.14 Section 610.14 Food...STANDARDS General Provisions § 610.14 Identity. The contents of a final container...filling of each lot shall be tested for identity after all labeling operations shall...

  12. Identity Construction in Powerful Institutions: A Commentary

    ERIC Educational Resources Information Center

    Philips, Susan U.

    2010-01-01

    The articles in this issue focus on the collaborative and negotiated construction of identities in interaction. Most of the articles are concerned with the constitution of identities through time in powerful educational and legal institutional contexts. Here the emphasis is on the emergence of new identities being learned by some participants…

  13. The Development of Ethnic Identity during Adolescence

    ERIC Educational Resources Information Center

    French, Sabine Elizabeth; Seidman, Edward; Allen, LaRue; Aber, J. Lawrence

    2006-01-01

    The development of ethnic identity is a critical facet of adolescence, particularly for adolescents of color. In order to examine the developmental trajectory of ethnic identity, African American, Latino American, and European American early and middle adolescents (N=420) were assessed over 3 years. Two components of ethnic identity were…

  14. Intelligent hybrid approach to false identity detection

    Microsoft Academic Search

    Tossapon Boongoen; Qiang Shen

    2009-01-01

    Combating identity fraud is prominent and urgent since false identity has become the common denominator of all serious crime. Among many identified identity attributes, personal names are commonly falsified or aliased by most criminals and terrorists. Typical approaches to such name disambiguation rely on the text-based similarity measures, which are efficient to some extent, but severely fail to handle highly

  15. American Identity in the USA: Youth Perspectives

    ERIC Educational Resources Information Center

    Jahromi, Parissa

    2011-01-01

    National identity, how one sees oneself as a member of a given nation, is an important form of social identity. Feelings toward one's country are a matter of both individual and collective concern. In an increasingly diverse world, the issue of identifying with a nation is complex and consequential for individual identity formation as well as…

  16. Gender, Legitimation, and Identity Verification in Groups

    ERIC Educational Resources Information Center

    Burke, Peter J.; Stets, Jan E.; Cerven, Christine

    2007-01-01

    Drawing upon identity theory, expectation states theory, and legitimation theory, we examine how the task leader identity in task-oriented groups is more likely to be verified for persons with high status characteristics. We hypothesize that identity verification will be accomplished more readily for male group members and legitimated task leaders…

  17. Retirees' Social Identity and Satisfaction with Retirement

    ERIC Educational Resources Information Center

    Michinov, Estelle; Fouquereau, Evelyne; Fernandez, Anne

    2008-01-01

    The purpose of this study was to examine the structure of retirees' social identity and its impact on satisfaction with retirement. From social identity theory formulations, we assumed that (1) retiree-identity was comprised of three distinct components (cognitive, evaluative, and affective), and (2) only the affective component would play a role…

  18. New Bessel Identities from Laguerre Polynomials

    E-print Network

    Ipsen, Asger C

    2012-01-01

    For large order, Laguerre polynomials can be approximated by Bessel functions near the origin. This can be used to turn many Laguerre identities into corresponding identities for Bessel functions. We will illustrate this idea with a number of examples. In particular, we will derive a generalization of a identity due to Sonine, which appears to be new.

  19. Ego Identity Status: Addressing the Continuum Debate.

    ERIC Educational Resources Information Center

    Van Wicklin, John F.

    From Erikson's (1968) psychosocial criteria of crisis and commitment, Marcia (1964) derived four ego identity statuses, i.e., achievement, moratorium, foreclosure, and diffusion. To explore antecedents of Erikson's ego identity construct, 130 college females completed a modified identity status interview, and questionnaires designed to elicit…

  20. Reconsidering Research on Teachers' Professional Identity

    ERIC Educational Resources Information Center

    Beijaard, Douwe; Meijer, Paulien C.; Verloop, Nico

    2004-01-01

    The studies considered in this review of recent research on teachers' professional identity can be divided into three categories: (1) studies in which the focus was on teachers' professional identity formation, (2) studies in which the focus was on the identification of characteristics of teachers' professional identity, and (3) studies in which…

  1. IDENTITY TALK IN THE PEACE AND JUSTICE MOVEMENT

    Microsoft Academic Search

    SCOTT A. HUNT; ROBERT D. BENFORD

    1994-01-01

    This article examines identity talk in several peace movement organizations from 1982 to 1991. Identity talk directs attention to how identity discourse concretizes activists' perceptions of social movement dramas, demonstrates personal identity, reconstructs individuals' biographies, imputes group identities, and aligns personal and collective identities. Six types of identity talk are identified and illustrated: associational declarations, disillusionment anecdotes, atrocity tales, personal

  2. Identity-expression interaction in face perception: sex, visual field, and psychophysical factors.

    PubMed

    Godard, Ornella; Baudouin, Jean-Yves; Bonnet, Philippe; Fiori, Nicole

    2013-01-01

    We investigated the psychophysical factors underlying the identity-emotion interaction in face perception. Visual field and sex were also taken into account. Participants had to judge whether a probe face, presented in either the left or the right visual field, and a central target face belonging to same person while emotional expression varied (Experiment 1) or to judge whether probe and target faces expressed the same emotion while identity was manipulated (Experiment 2). For accuracy we replicated the mutual facilitation effect between identity and emotion; no sex or hemispheric differences were found. Processing speed measurements, however, showed a lesser degree of interference in women than in men, especially for matching identity when faces expressed different emotions after a left visual presentation probe face. Psychophysical indices can be used to determine whether these effects are perceptual (A') or instead arise at a post-perceptual decision-making stage (B"). The influence of identity on the processing of facial emotion seems to be due to perceptual factors, whereas the influence of emotion changes on identity processing seems to be related to decisional factors. In addition, men seem to be more "conservative" after a LVF/RH probe-face presentation when processing identity. Women seem to benefit from better abilities to extract facial invariant aspects relative to identity. PMID:23163487

  3. System Identification: Time Varying and Nonlinear Methods 

    E-print Network

    Majji, Manoranjan

    2010-07-14

    Novel methods of system identification are developed in this dissertation. First set of methods are designed to realize time varying linear dynamical system models from input-output experimental data. The preliminary results obtained in a recent...

  4. System Identification: Time Varying and Nonlinear Methods

    E-print Network

    Majji, Manoranjan

    2010-07-14

    Novel methods of system identification are developed in this dissertation. First set of methods are designed to realize time varying linear dynamical system models from input-output experimental data. The preliminary results obtained in a recent...

  5. Time-varying modulated lapped transforms

    Microsoft Academic Search

    J. Kovacevic; Martin Vetterli

    1993-01-01

    We consider the problem of time-varying orthonormal tilings of the time-frequency plane. A very elegant way of obtaining such tilings is by using time-varying modulated lapped transforms. We offer ways of constructing these, by using either boundary or overlapping modulated lapped transforms The advantage of using modulated lapped transforms is that all the filters, both at transitions and within decompositions,

  6. Identity-Based Cryptosystems I Identity-based public key cryptography is a paradigm

    E-print Network

    Verdult, Roel

    Identity-Based Cryptosystems I I Background Identity-based public key cryptography is a paradigm) that have to deliver private keys to users after hav- ing derived them from their identity information solutions for identity- based signatures (IBS) have been devised since [, , ], but finding a practical

  7. On an identity of Gessel and Stanton and the new little Gollnitz identities

    E-print Network

    Savage, Carla D.

    On an identity of Gessel and Stanton and the new little G¨ollnitz identities Carla D. Savage Dept that an identity of Gessel and Stanton (Trans. Amerc. Math Soc. 277 (1983), p. 197, Eq. (7.24)) can be viewed as a a symmetric version of a recent analytic variation of the little G¨ollnitz identities. This is significant

  8. Abstract--Identity concealment is viewed as a standard identity privacy feature. UMTS provides partial concealment.

    E-print Network

    Barbeau, Michel

    Abstract-- Identity concealment is viewed as a standard identity privacy feature. UMTS provides partial concealment. This work extends the UMTS mutual authentication protocol such that the true identity. Three different solutions using aliases are proposed. Each of them provides perfect identity concealment

  9. Racial Identity Attitudes and Ego Identity Statuses in Dominican and Puerto Rican College Students

    ERIC Educational Resources Information Center

    Sanchez, Delida

    2013-01-01

    This study explored the relation between racial identity attitudes and ego identity statuses in 94 Dominican and Puerto Rican Latino college students in an urban public college setting. Simultaneous regression analyses were conducted to test the relation between racial identity attitudes and ego identity statuses, and findings indicated that…

  10. [Dissociative identity disorder or schizophrenia?].

    PubMed

    Tschöke, S; Steinert, T

    2010-01-01

    We present a case of dissociative identity disorder in which Schneiderian first rank symptoms were present besides of various states of consciousness. Thus the diagnosis of schizophrenia had to be considered. Formally, the symptoms met ICD-10 criteria for schizophrenia. However, taking into account the lack of formal thought disorder and of negative symptoms as well as a typical history of severe and prolonged traumatisation, we did not diagnose a co-morbid schizophrenic disorder. There is good evidence for the existence of psychotic symptoms among patients with dissociative disorders. However, in clinical practice this differential diagnosis is rarely considered. PMID:19847739

  11. Codimensions of generalized polynomial identities

    SciTech Connect

    Gordienko, Aleksei S [M. V. Lomonosov Moscow State University, Faculty of Mechanics and Mathematics, Moscow (Russian Federation)

    2010-02-28

    It is proved that for every finite-dimensional associative algebra A over a field of characteristic zero there are numbers C element of Q{sub +} and t element of Z{sub +} such that gc{sub n}(A){approx}Cn{sup t}d{sup n} as n{yields}{infinity}, where d=PI exp(A) element of Z{sub +}. Thus, Amitsur's and Regev's conjectures hold for the codimensions gc{sub n}(A) of the generalized polynomial identities. Bibliography: 6 titles.

  12. [Incest: murder of the identity].

    PubMed

    Balier, C

    1994-01-01

    The author begins by describing incest in the context of a change in attitude toward it and a substantial increase in forensic referral. This is followed by the description of the psychological profile of abusing fathers and how the traumatic experience severly shatters the sense of identity in the victims. Some clinical examples illustrate the role of negative hallucination, basic violence and the phenomenon of the double. The author also approaches the mental functioning of the abusers through the angle of perversion and attempts to define some necessary therapeutic conditions. PMID:7878135

  13. Convergent validity in objective measures of identity status: implications for identity status theory.

    PubMed

    Schwartz, Seth J

    2002-01-01

    The present study was conducted to test two primary assumptions of Marcia's identity status model: (a) that measures of the identity statuses would relate to identity exploration and commitment in ways consistent with the definitions of the statuses; and (b) that status assignments made using continuous status measures would converge with those made using exploration and commitment scores. Seven hundred fifty-eight university students (174 males, 560 females, 24 not reporting gender) completed the Ego Identity Process Questionnaire, which is a measure of identity exploration and commitment, and the Extended Objective Measure of Ego Identity Status II, which provides continuous measures of each identity status. Results provided mixed support for both assumptions of the identity status model. The findings are discussed in light of recent calls for expansion of identity theory and research beyond the identity status model. PMID:12458697

  14. Family Interaction Patterns as Predictors of Vocational Identity and Career Decision-Making Self-Efficacy.

    ERIC Educational Resources Information Center

    Hargrove, Byron K.; Creagh, Maureen G.; Burgess, Brian L.

    2002-01-01

    Vocational identity scores of 210 college students varied by family achievement orientation. Career decision-making self-efficacy was influenced by family differences in achievement, intellectual-cultural, and moral-religious 'orientation; conflict; and expressiveness. Family interaction patterns thus may play a small but significant role in…

  15. Re-Membering Culture: Bearing Witness to the Spirit of Identity in Research

    ERIC Educational Resources Information Center

    Dillard, Cynthia B.

    2008-01-01

    This article examines the complexities and possibilities of identity (leaning on DuBois' notion of double consciousness) when located not in the white racial landscape of the US but in the varied racial, cultural and (inter)national contexts explicated by the scholars gathered in this issue of "REE". One way to read this response might be as a…

  16. Conductance Ratios and Cellular Identity

    PubMed Central

    Hudson, Amber E.; Prinz, Astrid A.

    2010-01-01

    Recent experimental evidence suggests that coordinated expression of ion channels plays a role in constraining neuronal electrical activity. In particular, each neuronal cell type of the crustacean stomatogastric ganglion exhibits a unique set of positive linear correlations between ionic membrane conductances. These data suggest a causal relationship between expressed conductance correlations and features of cellular identity, namely electrical activity type. To test this idea, we used an existing database of conductance-based model neurons. We partitioned this database based on various measures of intrinsic activity, to approximate distinctions between biological cell types. We then tested individual conductance pairs for linear dependence to identify correlations. Contrary to experimental evidence, in which all conductance correlations are positive, 32% of correlations seen in this database were negative relationships. In addition, 80% of correlations seen here involved at least one calcium conductance, which have been difficult to measure experimentally. Similar to experimental results, each activity type investigated had a unique combination of correlated conductances. Finally, we found that populations of models that conform to a specific conductance correlation have a higher likelihood of exhibiting a particular feature of electrical activity. We conclude that regulating conductance ratios can support proper electrical activity of a wide range of cell types, particularly when the identity of the cell is well-defined by one or two features of its activity. Furthermore, we predict that previously unseen negative correlations and correlations involving calcium conductances are biologically plausible. PMID:20628472

  17. Categorizing identity from facial motion.

    PubMed

    Girges, Christine; Spencer, Janine; O'Brien, Justin

    2015-09-01

    Advances in marker-less motion capture technology now allow the accurate replication of facial motion and deformation in computer-generated imagery (CGI). A forced-choice discrimination paradigm using such CGI facial animations showed that human observers can categorize identity solely from facial motion cues. Animations were generated from motion captures acquired during natural speech, thus eliciting both rigid (head rotations and translations) and nonrigid (expressional changes) motion. To limit interferences from individual differences in facial form, all animations shared the same appearance. Observers were required to discriminate between different videos of facial motion and between the facial motions of different people. Performance was compared to the control condition of orientation-inverted facial motion. The results show that observers are able to make accurate discriminations of identity in the absence of all cues except facial motion. A clear inversion effect in both tasks provided consistency with previous studies, supporting the configural view of human face perception. The accuracy of this motion capture technology thus allowed stimuli to be generated that closely resembled real moving faces. Future studies may wish to implement such methodology when studying human face perception. PMID:25687732

  18. Effect of Whole-Body Vibration on Speech. Part 2; Effect on Intelligibility

    NASA Technical Reports Server (NTRS)

    Begault, Durand R.

    2011-01-01

    The effect on speech intelligibility was measured for speech where talkers reading Diagnostic Rhyme Test material were exposed to 0.7 g whole body vibration to simulate space vehicle launch. Across all talkers, the effect of vibration was to degrade the percentage of correctly transcribed words from 83% to 74%. The magnitude of the effect of vibration on speech communication varies between individuals, for both talkers and listeners. A worst case scenario for intelligibility would be the most sensitive listener hearing the most sensitive talker; one participant s intelligibility was reduced by 26% (97% to 71%) for one of the talkers.

  19. Solar mass-varying neutrino oscillations

    E-print Network

    V. Barger; Patrick Huber; Danny Marfatia

    2005-09-30

    We propose that the solar neutrino deficit may be due to oscillations of mass-varying neutrinos (MaVaNs). This scenario elucidates solar neutrino data beautifully while remaining comfortably compatible with atmospheric neutrino and K2K data and with reactor antineutrino data at short and long baselines (from CHOOZ and KamLAND). We find that the survival probability of solar MaVaNs is independent of how the suppression of neutrino mass caused by the acceleron-matter couplings varies with density. Measurements of MeV and lower energy solar neutrinos will provide a rigorous test of the idea.

  20. Solar mass-varying neutrino oscillations.

    PubMed

    Barger, V; Huber, Patrick; Marfatia, Danny

    2005-11-18

    We propose that the solar neutrino deficit may be due to oscillations of mass-varying neutrinos (MaVaNs). This scenario elucidates solar neutrino data beautifully while remaining comfortably compatible with atmospheric neutrino and K2K data and with reactor antineutrino data at short and long baselines (from CHOOZ and KamLAND). We find that the survival probability of solar MaVaNs is independent of how the suppression of neutrino mass caused by the acceleron-matter couplings varies with density. Measurements of MeV and lower energy solar neutrinos will provide a rigorous test of the idea. PMID:16384133

  1. Solar Mass-Varying Neutrino Oscillations

    SciTech Connect

    Barger, V.; Huber, Patrick [Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States); Marfatia, Danny [Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045 (United States)

    2005-11-18

    We propose that the solar neutrino deficit may be due to oscillations of mass-varying neutrinos (MaVaNs). This scenario elucidates solar neutrino data beautifully while remaining comfortably compatible with atmospheric neutrino and K2K data and with reactor antineutrino data at short and long baselines (from CHOOZ and KamLAND). We find that the survival probability of solar MaVaNs is independent of how the suppression of neutrino mass caused by the acceleron-matter couplings varies with density. Measurements of MeV and lower energy solar neutrinos will provide a rigorous test of the idea.

  2. Quantum teleportation with identical particles

    NASA Astrophysics Data System (ADS)

    Marzolino, Ugo; Buchleitner, Andreas

    2015-03-01

    We study teleportation with identical massive particles. Indistinguishability imposes that the relevant degrees of freedom to be teleported are not particles, but rather addressable orthogonal modes. We discuss the performances of teleportation under the constraint of conservation of the total number of particles. The latter inevitably decreases the teleportation fidelity. Moreover, even though a phase reference, given by the coupling to a reservoir, circumvents the constraint, it does not restore perfect deterministic teleportation. The latter is only achievable with some special resource entangled states and when the number of particles tends to infinity. Interestingly, some of such states are the many-particle atomic coherent states and the ground state of cold atoms loaded into a double well potential, which are routinely prepared in experiments.

  3. Exploring the interplay between organizational and professional identity

    E-print Network

    Paris-Sud XI, Université de

    Page 1 Exploring the interplay between organizational and professional identity Communication.1. Professional identity 4 2.2. Organizational identity 5 2.3. Professional and organizational identity: contextualizing professional identity? 6 2.4. Institutional framework, education policy and identities 7 2

  4. Sexual orientation and consistency of sexual identity.

    PubMed

    McConaghy, N; Armstrong, M S

    1983-08-01

    The semantic confusion in the use of the terms sexual and gender identity and role is discussed. Theories concerning the development of the sense of sexual identity in normals have been based largely on the sense of sexual identity in sexually deviant subjects. It is suggested that such subjects may have a stronger and more consistent sense of sexual identity than subjects unaware of sexually deviant impulses. Male medical students in two consecutive years anonymously completed a questionnaire concerning their sexual orientation, preference, role, and identity. In both years, students aware of a homosexual component answered the items investigating their sexual identity with greater consistency than did the students unaware of a homosexual component. PMID:6639327

  5. Relaxation Assessment with Varied Structured Milieu (RELAX).

    ERIC Educational Resources Information Center

    Cassel, Russell N.; Cassel, Susie L.

    1983-01-01

    Describes Relaxation Assessment with Varied Structured Milieu (RELAX), a clinical program designed to assess the degree to which an individual is able to demonstrate self-control for overall general relaxation. The program is designed for use with the Cassel Biosensors biofeedback equipment. (JAC)

  6. Time-Varying World Market Integration

    Microsoft Academic Search

    Geert Bekaert; Campbell R Harvey

    1995-01-01

    We propose a measure of capital market integration arising from a conditional regime-switching model. Our measure allows us to describe expected returns in countries that are segmented from world capital markets in one part of the sample and become integrated later in the sample. We find that a number of emerging markets exhibit time-varying integration. Some markets appear more integrated

  7. Boiling Radial Flow in Fractures of Varying

    E-print Network

    Stanford University

    apply only to a finite radius around the point of injection, higher values of heat flux and a boilingSGP-TR-166 Boiling Radial Flow in Fractures of Varying Wall Porosity Robb Allan Barnitt June 2000 and boiling convective heat transfer, with boiling flow in a rock fracture. A series of experiments observed

  8. Colour Constancy for Scenes with Varying Illumination

    E-print Network

    Barnard, Kobus

    Colour Constancy for Scenes with Varying Illumination Kobus Barnard 1 , Graham Finlayson 2 surface reflectance and illumination variation to solve for colour constancy. Most colour constancy algorithms assume that the illumination across a scene is constant, but this is very often not valid for real

  9. Segmentation and Estimation of Spatially Varying Illumination

    E-print Network

    Robles-Kelly, Antonio

    Segmentation and Estimation of Spatially Varying Illumination Lin Gu, Student Member, IEEE, Cong present an unsupervised method for segmenting the illuminant regions and estimating the illumination power spectrum from a single image of a scene lit by multiple light sources. Here, illuminant region segmentation

  10. Colour Constancy for Scenes with Varying Illumination

    E-print Network

    Funt, Brian

    Colour Constancy for Scenes with Varying Illumination Kobus Barnard1, Graham Finlayson2, and Brian surface reflectance and illumination variation to solve for colour constancy. Most colour constancy algorithms assume that the illumination across a scene is constant, but this is very often not valid for real

  11. Linear Parameter Varying control of a quadrotor

    Microsoft Academic Search

    Samarathunga L. M. D. Rangajeeva; James F. Whidborne

    2011-01-01

    control has been lost [4]. In order to extend the flight envelope a common approach is gain scheduling. In which several linear models of the quadrotor are obtained for different trim points and then number of Liner Time Invariant (LTI) controllers are derived for each point. As operating conditions vary, the global controller is estimated by interpolating gains of the

  12. Venturi Tube with Varying Mass Flow

    NASA Technical Reports Server (NTRS)

    Regenscheit, B.

    1948-01-01

    Measurements on three tubes with flow regulated by suction at the trainling edge of the tube are described. It was possible to vary the mass of air flowing through the tube over a large range. Such tubes could be used for shrouded propellers.

  13. Cosmology with Time-Varying G

    Microsoft Academic Search

    Antonio Alfonso-Faus

    1986-01-01

    It is shown that a Universe with a time-varying gravitational ``constant'' G necessarily implies creation if the rest mass of matter particles m p is constant. In this case, from Einstein's field equations, the conditions for energy-momentum propagation are ? ·( GT mu v ) from which matter and photon propagation equations are derived. Free matter particle propagation is not

  14. ICAPM with time-varying risk aversion

    Microsoft Academic Search

    Paulo Maio

    2007-01-01

    A derivation of the ICAPM in a very general framework and previous theoretical work, argue for the relative risk aversion (RRA) coefficient to be both time-varying and countercyclical. The variables that represent proxies for the cyclical component of RRA are the market dividend yield, default spread, smoothed earnings yield and industrial production growth, all being highly correlated with the business

  15. The pricing of time-varying beta

    Microsoft Academic Search

    Gloria González-Rivera

    1997-01-01

    We generalize an asset pricing model based on the Arbitrage Pricing Theory (APT) allowing beta to be time-varying. Making beta a random variable adds flexibility to the model because permits a non-linear relation between individual returns and the set of factors, and accounts for the effect of possible omitted variables. We integrate the conditional APT with a general linear stochastic

  16. Ethnic Identity in Everyday Life: The Influence of Identity Development Status

    PubMed Central

    Yip, Tiffany

    2013-01-01

    The current study explores the intersection of ethnic identity development and significance in a sample of 354 diverse adolescents (mean age 14). Adolescents completed surveys 5 times a day for 1 week. Cluster analyses revealed 4 identity clusters: diffused, foreclosed, moratorium, achieved. Achieved adolescents reported the highest levels of identity salience across situations, followed by moratorium adolescents. Achieved and moratorium adolescents also reported a positive association between identity salience and private regard. For foreclosed and achieved adolescents reporting low levels of centrality, identity salience was associated with lower private regard. For foreclosed and achieved adolescents reporting high levels of centrality, identity salience was associated with higher private regard. PMID:23581701

  17. Managing corporate identity: An internal perspective

    Microsoft Academic Search

    Cláudia Simões; Sally Dibb; Raymond P. Fisk

    2005-01-01

    Management plays a key role in the development and maintenance of corporate identity, including paying particular attention\\u000a to the internal and controllable aspects of the process. The progression of research that examines corporate identity is contingent\\u000a on clarification of the scope of corporate identity management (CIM) and development of generalizable and applicable measures\\u000a of the construct. This study develops an

  18. Disclosing false identity through hybrid link analysis

    Microsoft Academic Search

    Tossapon Boongoen; Qiang Shen; Chris Price

    2010-01-01

    Combating the identity problem is crucial and urgent as false identity has become a common denominator of many serious crimes,\\u000a including mafia trafficking and terrorism. Without correct identification, it is very difficult for law enforcement authority\\u000a to intervene, or even trace terrorists’ activities. Amongst several identity attributes, personal names are commonly, and\\u000a effortlessly, falsified or aliased by most criminals. Typical

  19. Components in time-varying graphs

    NASA Astrophysics Data System (ADS)

    Nicosia, Vincenzo; Tang, John; Musolesi, Mirco; Russo, Giovanni; Mascolo, Cecilia; Latora, Vito

    2012-06-01

    Real complex systems are inherently time-varying. Thanks to new communication systems and novel technologies, today it is possible to produce and analyze social and biological networks with detailed information on the time of occurrence and duration of each link. However, standard graph metrics introduced so far in complex network theory are mainly suited for static graphs, i.e., graphs in which the links do not change over time, or graphs built from time-varying systems by aggregating all the links as if they were concurrent in time. In this paper, we extend the notion of connectedness, and the definitions of node and graph components, to the case of time-varying graphs, which are represented as time-ordered sequences of graphs defined over a fixed set of nodes. We show that the problem of finding strongly connected components in a time-varying graph can be mapped into the problem of discovering the maximal-cliques in an opportunely constructed static graph, which we name the affine graph. It is, therefore, an NP-complete problem. As a practical example, we have performed a temporal component analysis of time-varying graphs constructed from three data sets of human interactions. The results show that taking time into account in the definition of graph components allows to capture important features of real systems. In particular, we observe a large variability in the size of node temporal in- and out-components. This is due to intrinsic fluctuations in the activity patterns of individuals, which cannot be detected by static graph analysis.

  20. Identity theory and personality theory: mutual relevance.

    PubMed

    Stryker, Sheldon

    2007-12-01

    Some personality psychologists have found a structural symbolic interactionist frame and identity theory relevant to their work. This frame and theory, developed in sociology, are first reviewed. Emphasized in the review are a multiple identity conception of self, identities as internalized expectations derived from roles embedded in organized networks of social interaction, and a view of social structures as facilitators in bringing people into networks or constraints in keeping them out, subsequently, attention turns to a discussion of the mutual relevance of structural symbolic interactionism/identity theory and personality theory, looking to extensions of the current literature on these topics. PMID:17995458

  1. When personal identities confirm versus conflict with group identities: Evidence from an intergroup paradigm

    E-print Network

    Patterson, Meagan M.; Bigler, Rebecca S.; Swann, William B., Jr.

    2010-01-01

    1 Citation: Patterson, M. M., Bigler, R. S., & Swann, W. B., Jr. (2010). When personal identities confirm versus conflict with group identities: Evidence from an intergroup paradigm. European Journal of Social Psychology, 40, 652...

  2. Learning Time-Varying Coverage Functions

    PubMed Central

    Du, Nan; Liang, Yingyu; Balcan, Maria-Florina; Song, Le

    2015-01-01

    Coverage functions are an important class of discrete functions that capture the law of diminishing returns arising naturally from applications in social network analysis, machine learning, and algorithmic game theory. In this paper, we propose a new problem of learning time-varying coverage functions, and develop a novel parametrization of these functions using random features. Based on the connection between time-varying coverage functions and counting processes, we also propose an efficient parameter learning algorithm based on likelihood maximization, and provide a sample complexity analysis. We applied our algorithm to the influence function estimation problem in information diffusion in social networks, and show that with few assumptions about the diffusion processes, our algorithm is able to estimate influence significantly more accurately than existing approaches on both synthetic and real world data. PMID:25960624

  3. Force Measurements of a varying camber hydrofoil

    NASA Astrophysics Data System (ADS)

    Najdzin, Derek; Bardet, Philippe M.; Leftwich, Megan C.

    2013-11-01

    The swimming motion of cetaceans (dolphins, whales) is capable of producing large amounts of thrust as observed in nature. This project aims to determine the propulsive efficiency of this swimming motion through force and power measurements. A mechanism was constructed to replicate this motion by applying a combination of pitching and heaving motions to a varying camber hydrofoil. A novel force balance allows the measurement of three direction force and moments as the fin oscillates. A range of Reynolds and Strouhal numbers were tested to identify the most efficient conditions. Allowing the camber of the hydrofoil to vary has shown to increase lift generated, while generating similar thrust forces when compared to a constant camber hydrofoil.

  4. Varying potential silicon carbide gas sensor

    NASA Technical Reports Server (NTRS)

    Shields, Virgil B. (Inventor); Ryan, Margaret A. (Inventor); Williams, Roger M. (Inventor)

    1997-01-01

    A hydrocarbon gas detection device operates by dissociating or electro-chemically oxidizing hydrocarbons adsorbed to a silicon carbide detection layer. Dissociation or oxidation are driven by a varying potential applied to the detection layer. Different hydrocarbon species undergo reaction at different applied potentials so that the device is able to discriminate among various hydrocarbon species. The device can operate at temperatures between 100.degree. C. and at least 650.degree. C., allowing hydrocarbon detection in hot exhaust gases. The dissociation reaction is detected either as a change in a capacitor or, preferably, as a change of current flow through an FET which incorporates the silicon carbide detection layers. The silicon carbide detection layer can be augmented with a pad of catalytic material which provides a signal without an applied potential. Comparisons between the catalytically produced signal and the varying potential produced signal may further help identify the hydrocarbon present.

  5. VSS observer for linear time varying system

    Microsoft Academic Search

    Hideki Hashimoto; V. I. Utkin; J.-X. Xu; H. Suzuki; F. Harashima

    1990-01-01

    The problem of designing an observer for state estimation using variable structure system (VSS) theory is discussed. The theory and design principles for linear time-varying systems are presented. The observer is constructed by introducing a block-observable from which is similar to a lower triangular matrix. The convergence of the observer is guaranteed by a sliding mode with first-order filter. Simulation

  6. Biorthogonal frequency-varying modulated lapped transform

    Microsoft Academic Search

    Yixin Gao; Guizhong Liu

    2009-01-01

    In this paper we introduce a biorthogonal frequency-varying modulated lapped transform (BFV-MLT) with flexible tiling behavior of time-frequency plane and attenuation of ringing artifacts. Biorthogonality allows accessorial freedom in designing the analysis and synthesis filter-banks and FVMLT provides nonuniform decomposition of signals with ideal time or frequency resolutions. By constructing a new approach to FV-MLT, we incorporate biorthogonality into FV-MLT

  7. Cosmology with time-varying G

    Microsoft Academic Search

    Antonio Alfonso-Faus

    1986-01-01

    It is shown that a Universe with a time-varying gravitational “constant”G necessarily implies creation if the rest mass of matter particlesmp is constant. In this case, from Einstein's field equations, the conditions for energy-momentum propagation are ? ·(GTµv) from which matter and photon propagation equations are derived. Free matter particle propagation is not affected by creation that is given byGNpmp=const,

  8. From Social to Political Identity: A Critical Examination of Social Identity Theory

    Microsoft Academic Search

    Leonie Huddy

    2001-01-01

    Interest in the concept of identity has grown exponentially within both the humanities and social sciences, but the discussion of identity has had less impact than might be expected on the quantitative study of political behavior in general and on political psychology more specifically. One of the approaches that holds the most promise for political psychologists is social identity theory,

  9. Identity Based Broadcast Encryption Based on One to Many Identity Based Proxy Re-encryption

    E-print Network

    Identity Based Broadcast Encryption Based on One to Many Identity Based Proxy Re-encryption Xu Armed Police Force, 710086, P. R. China E-mail:wangxahq@yahoo.com.cn Abstract-- Broadcast encryption non-revoked receivers can decrypt them. Identity based broadcast encryption schemes are public key

  10. Can Psychophysical Identity Save Mental Causation? The popularity of psychophysical property identity has waxed and waned

    E-print Network

    Habib, Ayman

    1 Can Psychophysical Identity Save Mental Causation? The popularity of psychophysical property identity has waxed and waned since its presentation by the Australian materialists of the 1950s. It went it has been thought that psychophysical identity is useful for solving difficult problems as to how

  11. Convergent Validity in Objective Measures of Identity Status: Implications for Identity Status Theory.

    ERIC Educational Resources Information Center

    Schwartz, Seth J.

    2002-01-01

    Tests two primary assumptions of Marcia's identity status model: that measures of the identity statuses would relate to identity exploration and commitment in ways consistent with the definitions of the statuses; and that status assignments made using continuous status measures would converge with those made using exploration and commitment…

  12. Dissociative identity disorder: Medicolegal challenges.

    PubMed

    Farrell, Helen M

    2011-01-01

    Persons with dissociative identity disorder (DID) often present in the criminal justice system rather than the mental health system and perplex experts in both professions. DID is a controversial diagnosis with important medicolegal implications. Defendants have claimed that they committed serious crimes, including rape or murder, while they were in a dissociated state. Asserting that their alter personality committed the bad act, defendants have pleaded not guilty by reason of insanity (NGRI). In such instances, forensic experts are asked to assess the defendant for DID and provide testimony in court. Debate continues over whether DID truly exists, whether expert testimony should be allowed into evidence, and whether it should exculpate defendants for their criminal acts. This article reviews historical and theoretical perspectives on DID, presents cases that illustrate the legal implications and controversies of raising an insanity defense based on multiple personalities, and examines the role of forensic experts asked to comment on DID with the goal of assisting clinicians in the medicolegal assessment of DID in relation to crimes. PMID:21908758

  13. White Racial Identity Development and Religious Orientation.

    ERIC Educational Resources Information Center

    Sciarra, Daniel T.; Gushue, George V.

    2003-01-01

    Study examined how the particular dimension of psychosocial development described by racial identity theory may be related to religious motivation (intrinsic versus extrinsic relation) and how religious beliefs are held (quest versus fundamentalism). Found three significant pairs suggesting that higher and more complex racial identity statuses may…

  14. Identity Status, Religious Orientation, and Prejudice.

    ERIC Educational Resources Information Center

    Fulton, Aubyn S.

    1997-01-01

    Hypothesized relationships between identity status and religious orientation and antiblack and antihomosexual prejudice were studied in 176 Christian undergraduates. Differences and correlations were mostly as hypothesized, but expected relationships between identity status and prejudice were not found, with the exception of a relationship between…

  15. Towards Operating Identity-based NFC Services

    Microsoft Academic Search

    M. Laukkanen

    2007-01-01

    In this paper we discuss service models and scenarios for identity-based NFC services. We also concentrate on the mobile operator's role in operating the services, especially focusing on the emerging use cases that could be enabled by taking into account the end-user's identity. Further, the NFC- enabled mobile phones entering the consumer markets will bring the NFC technology close to

  16. TOPOLOGICAL AND SIMPLICIAL MODELS OF IDENTITY TYPES

    E-print Network

    van den Berg, Benno

    TOPOLOGICAL AND SIMPLICIAL MODELS OF IDENTITY TYPES BENNO VAN DEN BERG AND RICHARD GARNER Abstract. In this paper we construct new categorical models for the iden- tity types of Martin-L¨of type theory and Warren, which has suggested that a suitable environment for the interpretation of identity types should

  17. Bringing Identity Theory into Environmental Sociology

    Microsoft Academic Search

    Jan E. Stets; Chris F. Biga

    2003-01-01

    In an effort to explain pro-environmental behavior, environmental sociologists often study environmental attitudes. While much of this work is atheoretical, the focus on attitudes suggests that researchers are implicitly drawing upon attitude theory in psychology. The present research brings sociological theory to environmental sociology by drawing on identity theory to understand environmentally responsive behavior. We develop an environ- ment identity

  18. Functionalism and type-type identity theories

    Microsoft Academic Search

    Frank Jackson; Robert Pargetter; Elizabeth W. Prior

    1982-01-01

    Token-token identity theorists do not and need not deny that it may frequently be the same (kind of) brain state which on different occasions fills the functional rôle definitive of a given mental state. That is not at issue. What is at issue is whether functionally-oriented identity theorists should make two claims or three claims.

  19. Aphasia as identity theft: Theory and practice

    Microsoft Academic Search

    Barbara Shadden

    2005-01-01

    Background: The impact of aphasia on identity is frequently acknowledged, but there have been few theoretical or research publications focusing on identity as an explanatory construct in understanding quality of life issues for persons with aphasia and their significant others. This article is abbreviated from a keynote address at the 2004 Clinical Aphasiology Conference.Aims: The purpose of this article is

  20. TOPOLOGICAL AND SIMPLICIAL MODELS OF IDENTITY TYPES

    E-print Network

    van den Berg, Benno

    is a suitable environment for the interpretation of the identity types of Martin­LË?of type theory; the mainTOPOLOGICAL AND SIMPLICIAL MODELS OF IDENTITY TYPES BENNO VAN DEN BERG AND RICHARD GARNER Abstract. In this paper we construct new categorical models for the iden­ tity types of Martin­LË?of type theory

  1. Host Identity Payload for Mobility and Security

    Microsoft Academic Search

    Kari Kostiainen

    The current Internet is based on architecture created years ago. This architecture does not provide good support for mobility and security. Host Identity Payload (HIP) is a new proposal that introduces a cryptographically based namespace and a proto- col between the transport and internetworking layers. The new namespace breaks the x ed binding between host identities and host locations. In

  2. Resolving Identity Uncertainty with Learned Random Walks

    Microsoft Academic Search

    Ted Sandler; Lyle H. Ungar; Koby Crammer

    2009-01-01

    A pervasive problem in large relational databases is identity uncertainty which occurs when multiple entries in a database refer to the same underlying entity in the world. Relational databases exhibit rich graphical structure and are naturally modeled as graphs whose nodes represent entities and whose typed-edges represent relations between them. We propose using random walk models for resolving identity uncertainty

  3. Applying host identity protocol to tactical networks

    Microsoft Academic Search

    Mikko Sarela; Pekka Nikander

    2004-01-01

    We describe the current status of the host identity protocol and discuss how it could be applied to tactical networks, including mobile ad hoc networks. The host identity protocol (HIP) is a protocol proposal at the IETF for separating the end-point identifier and locator nature of IP addresses. It introduces a new name space, consisting of public cryptographic keys, and

  4. Self-Consciousness and Aspects of Identity.

    ERIC Educational Resources Information Center

    Cheek, Jonathan M.; Briggs, Stephen R.

    1982-01-01

    Investigated the relationship between public and private self-consciousness and social and personal aspects of identity. Public self-consciousness correlated more strongly with social than with personal aspects of identity, and private self-consciousness correlated more strongly with personal than with social aspects. Discusses implications for…

  5. Creating Self: A Theatrical Exploration of Identity

    Microsoft Academic Search

    Beth D Templeton

    2012-01-01

    This project explores the relationship between creativity and identity, specifically as they interact through artistic practice. Using research into theater, gender, identity, and creative impulse a performance piece was developed for the stage. The piece used text, improvisational and written music as well as scripted and improvised speech to explore five major area of the human experience. The first iteration

  6. The organisational identity of science centres

    Microsoft Academic Search

    Anwar Tlili

    2008-01-01

    This paper presents an empirically grounded mapping of the organisational identity that science centres in the UK are trying to carve out for themselves against the backdrop of developing organisational strategies and multiple external pressures, expectations and perceptions. I attempt this through a relational analysis that views the science centres’ organisational identity formation as constituted by and through a dialectic

  7. Identity guidelines Version 2.0

    E-print Network

    Diggle, Peter J.

    investments through consistent and correct use of the NIHR identity for all communications. The NIHR identity guidelines have been developed to ensure there is consistency for all communications produced by the NIHR. Application will create unity and help build a stronger, more recognisable NIHR brand both within the research

  8. The Ethico-Politics of Teacher Identity

    ERIC Educational Resources Information Center

    Clarke, Matthew

    2009-01-01

    Identity is a contemporary buzzword in education, referencing the individual and the social, the personal and the political, self and other. Following Maggie MacLure, we can think of identity in terms of teachers "arguing for themselves", or giving an account of themselves. Yet in the wake of poststructuralism's radical de-centering of the subject…

  9. Place-Identity in Urban Settings.

    ERIC Educational Resources Information Center

    Proshansky, Harold M.

    The concept of place identity is a theoretical necessity for understanding the impact of the urban environment on the individual. Place identity refers to clusters of perceptions in the form of images, memories, facts, ideas, beliefs, values, and behavior tendencies relevant to the individual's existence in the physical world. These clusters are…

  10. An Identity on SU(2) Invariants

    E-print Network

    Herry J. Kwee; Richard F. Lebed

    2007-11-27

    We prove an identity [Eq. (1) below] among SU(2) 6j and 9j symbols that generalizes the Biedenharn-Elliott sum rule. We prove the result using diagrammatic techniques (briefly reviewed here), and then provide an algebraic proof. This identity is useful for studying meson-baryon scattering in which an extra isoscalar meson is produced.

  11. Homosexual identity formation: Testing a theoretical model

    Microsoft Academic Search

    Vivienne C. Cass

    1984-01-01

    Of late, researchers in the area of homosexuality have emphasized the study of homosexual identity formation. Several models have been put forward depicting the process of identity acquisition, but little attempt has been made to test either their accuracy or generality. The study outlined in this paper assesses the validity of several important aspects of my six?stage model of homosexual

  12. Mental Health Counseling: Toward Resolving Identity Confusions.

    ERIC Educational Resources Information Center

    Pistole, M. Carole; Roberts, Amber

    2002-01-01

    The development of a professional identity is an important aspect of the training and ongoing sense of belongingness of mental health counselors. This article examines two themes related to identity confusion: establishing and producing a systematic body of theory for the profession and distinguishing the profession from other service providers.…

  13. Identity Status and Relationships with Parents.

    ERIC Educational Resources Information Center

    DiPlacido, Joanne; And Others

    Failure to establish an adequate identity during adolescence may lead to role confusion, where the individual experiences uncertainty and anxiety, and overly relies on others for guidance and support. It can be argued that identity achievers, by going through a crisis and becoming committed to a career, have gone through the process of separating…

  14. Exploring Linguistic Identity in Young Multilingual Learners

    ERIC Educational Resources Information Center

    Dressler, Roswita

    2014-01-01

    This article explores the linguistic identity of young multilingual learners through the use of a Language Portrait Silhouette. Examples from a research study of children aged 6-8 years in a German bilingual program in Canada provide teachers with an understanding that linguistic identity comprises expertise, affiliation, and inheritance. This…

  15. Implicit and Explicit Exercise and Sedentary Identity

    ERIC Educational Resources Information Center

    Berry, Tanya R.; Strachan, Shaelyn M.

    2012-01-01

    We examined the relationship between implicit and explicit "exerciser" and "sedentary" self-identity when activated by stereotypes. Undergraduate participants (N = 141) wrote essays about university students who either liked to exercise or engage in sedentary activities. This was followed by an implicit identity task and an explicit measure of…

  16. Pell Identities via a Quadratic Field

    ERIC Educational Resources Information Center

    Griffiths, Martin

    2013-01-01

    In this article, we derive a number of identities involving both Pell numbers and binomial coefficients. We also consider briefly the potential for obtaining Pell identities involving trinomial coefficients and beyond. A key point is the simplicity of the derivations, and indeed this work can lead on to a number of interesting explorations for…

  17. Migration, Culture and Identity in Portugal

    ERIC Educational Resources Information Center

    Vieira, Ricardo; Trindade, Jose

    2008-01-01

    Culture and identity are dynamic realities. Therefore, the essentialist view of culture and identity does not explain the process of integration of minorities in a context of acculturation, and leads to policies of "ghettoisation". This text focuses on what we describe as "cultural transfusion". By means of this process, we analyse two tendencies…

  18. Stress vs. Identity Among Black Males.

    ERIC Educational Resources Information Center

    Stokes, DeVon Renard

    A recurrent theme in the literature on black identity is self-hate. Black people are portrayed as suffering from one of the following four conditions; (1) low self-esteem; (2) impaired identity formation; (3) pathological environmental adaptation; and/or (4) low intellectual functioning. However, research is emerging which questions many of these…

  19. Aging and identity in dementia narratives

    Microsoft Academic Search

    Joe Moran

    2001-01-01

    This article explores the way that senile dementia is represented in contemporary culture, with particular reference to texts which narrate the experience of caring for a parent or spouse with one form of the illness. These narratives raise problematic issues about the materiality of the body and its relation to individual identity, and the unstable relationship between memory and identity

  20. Constructing a Lemko Identity: Tactics of Belonging

    ERIC Educational Resources Information Center

    Hornsby, Michael

    2015-01-01

    Lemko identity in Poland is contested in a number of contexts, including social, linguistic and political domains, among others. The members of this minority have to learn to negotiate multiple identities, not only from an in-group perspective but also in interactions with the majority community in Poland. This paper examines how the Lemkos…

  1. Critical discourse analysis and identity: why bother?

    Microsoft Academic Search

    Susan Ainsworth; Cynthia Hardy

    2004-01-01

    Critical discourse analysis (CDA) and other forms of discourse analysis are regularly used to study identity, but rarely do researchers systematically compare and contrast them with other theories to identify exactly what a discursive approach contributes. In this paper, we take the example of a particular identity – the older worker – and systematically compare the contribution of CDA with

  2. Political Socialization, Tolerance, and Sexual Identity

    ERIC Educational Resources Information Center

    Avery, Patricia G.

    2002-01-01

    Key concepts in political socialization, tolerance, groups, rights and responsibilities can be used to understand the way in which young people struggle with sexual identity issues. Educators may promote greater tolerance for homosexuality among heterosexuals by situating sexual identity issues within a broader discussion of democratic principles.…

  3. Professional Identity Development Theory and Doctoral Education

    ERIC Educational Resources Information Center

    Colbeck, Carol L.

    2008-01-01

    Students learn their chosen profession's abstract body of professional knowledge and its associated skills during lengthy degree programs and apprenticeships. In the process, each student is crafting a sense of identity as a particular type of professional. The period of doctoral preparation is particularly important because although identity is…

  4. A New Transcendence Model of Identity Construction

    ERIC Educational Resources Information Center

    Elliott, Christopher L. Wilcox

    2012-01-01

    What does it mean for college men to be authentic? How can we support their efforts to transcend their own immediate needs? And what roles do trusted others play in one's construction of identity? This article describes a preliminary new theoretical model--a Transcendence Model of Identity Construction--based on original research studying…

  5. Ethnicity, Identity and Educational Achievement in Mexico

    ERIC Educational Resources Information Center

    Flores-Crespo, Pedro

    2007-01-01

    Identity is central for research on education since, under certain conditions, it may influence school choice, career preferences and classroom behaviour. Identity also determines disposition toward schooling because it may have the capacity to shape and modify the values, beliefs and characteristics that distinguish one person from another, by…

  6. Conceptualizing Native Identity with a Multidimensional Model

    ERIC Educational Resources Information Center

    Gonzalez, John; Bennett, Russell

    2011-01-01

    This study reports on a Native Identity Scale (NIS) adapted from an African American identity scale (Sellers et al., 1997). American Indian (AIs) and First Nations Canadian participants (N = 199) completed the NIS at powwows in the Upper Midwest. The majority of respondents were Ojibwe, but other tribal groups were represented. A principal…

  7. Acculturation, Ethnic Identity and Well-Being.

    ERIC Educational Resources Information Center

    Schonpflug, Ute; And Others

    This study used an optimal distinctiveness model to examine bicultural identity development in 212 Turkish adolescents (13 to 24 years old) who were children of first generation migrant workers in Germany and tested in the third wave of a longitudinal study. The hypothesis was that the consequences of bicultural identity for psychological…

  8. Talker Separation and Sequential Stream Segregation in Listeners with Hearing Loss: Patterns Associated with Talker Gender.

    ERIC Educational Resources Information Center

    Mackersie, Carol L.

    2003-01-01

    This study of 11 listeners with sensorineural hearing loss examined the ability to separate simultaneous spoken sentences of speakers of different gender and the ability to separate pitch patterns in a sequential stream segregation task. Results suggest that the importance of streaming in the perceptual separation of speakers may depend on the…

  9. Vocal caricatures reveal signatures of speaker identity.

    PubMed

    López, Sabrina; Riera, Pablo; Assaneo, María Florencia; Eguía, Manuel; Sigman, Mariano; Trevisan, Marcos A

    2013-01-01

    What are the features that impersonators select to elicit a speaker's identity? We built a voice database of public figures (targets) and imitations produced by professional impersonators. They produced one imitation based on their memory of the target (caricature) and another one after listening to the target audio (replica). A set of naive participants then judged identity and similarity of pairs of voices. Identity was better evoked by the caricatures and replicas were perceived to be closer to the targets in terms of voice similarity. We used this data to map relevant acoustic dimensions for each task. Our results indicate that speaker identity is mainly associated with vocal tract features, while perception of voice similarity is related to vocal folds parameters. We therefore show the way in which acoustic caricatures emphasize identity features at the cost of loosing similarity, which allows drawing an analogy with caricatures in the visual space. PMID:24297083

  10. Vocal caricatures reveal signatures of speaker identity

    NASA Astrophysics Data System (ADS)

    López, Sabrina; Riera, Pablo; Assaneo, María Florencia; Eguía, Manuel; Sigman, Mariano; Trevisan, Marcos A.

    2013-12-01

    What are the features that impersonators select to elicit a speaker's identity? We built a voice database of public figures (targets) and imitations produced by professional impersonators. They produced one imitation based on their memory of the target (caricature) and another one after listening to the target audio (replica). A set of naive participants then judged identity and similarity of pairs of voices. Identity was better evoked by the caricatures and replicas were perceived to be closer to the targets in terms of voice similarity. We used this data to map relevant acoustic dimensions for each task. Our results indicate that speaker identity is mainly associated with vocal tract features, while perception of voice similarity is related to vocal folds parameters. We therefore show the way in which acoustic caricatures emphasize identity features at the cost of loosing similarity, which allows drawing an analogy with caricatures in the visual space.

  11. Belonging nowhere and everywhere: multiracial identity development.

    PubMed

    Deters, K A

    1997-01-01

    Few therapists are trained to work with multiracial individuals. Most have little knowledge of the process of identity development in this ever-increasing population. In this article, an examination of how the social construction of race impacts identity development is followed by a review of current theories regarding multiracial identity development. Interviews of clinicians illustrate how therapists understand their work with multiracial clients as well as the issues they have personally confronted. The challenges faced by therapists working with this population center on understanding how oppression affects identity development, supporting racial ambiguity as a part of normal identity development, working from a nonoppressive theoretical perspective, and examining their own internalized rules about racial and ethnic stereotypes. This preliminary examination indicates the need for further research. A controlled study in this area would be of benefit to the field. PMID:9260347

  12. Associations of racial discrimination and parental discrimination coping messages with african american adolescent racial identity.

    PubMed

    Richardson, Bridget L; Macon, Tamarie A; Mustafaa, Faheemah N; Bogan, Erin D; Cole-Lewis, Yasmin; Chavous, Tabbye M

    2015-06-01

    Research links racial identity to important developmental outcomes among African American adolescents, but less is known about the contextual experiences that shape youths' racial identity. In a sample of 491 African American adolescents (48 % female), associations of youth-reported experiences of racial discrimination and parental messages about preparation for racial bias with adolescents' later racial identity were examined. Cluster analysis resulted in four profiles of adolescents varying in reported frequency of racial discrimination from teachers and peers at school and frequency of parental racial discrimination coping messages during adolescents' 8th grade year. Boys were disproportionately over-represented in the cluster of youth experiencing more frequent discrimination but receiving fewer parental discrimination coping messages, relative to the overall sample. Also examined were clusters of adolescents' 11th grade racial identity attitudes about the importance of race (centrality), personal group affect (private regard), and perceptions of societal beliefs about African Americans (public regard). Girls and boys did not differ in their representation in racial identity clusters, but 8th grade discrimination/parent messages clusters were associated with 11th grade racial identity cluster membership, and these associations varied across gender groups. Boys experiencing more frequent discrimination but fewer parental coping messages were over-represented in the racial identity cluster characterized by low centrality, low private regard, and average public regard. The findings suggest that adolescents who experience racial discrimination but receive fewer parental supports for negotiating and coping with discrimination may be at heightened risk for internalizing stigmatizing experiences. Also, the findings suggest the need to consider the context of gender in adolescents' racial discrimination and parental racial socialization. PMID:25300508

  13. Polynomial identities which imply identities of Euler and Jacobi 1. Introduction. We shall prove polynomial identities which imply the fol-

    E-print Network

    Hirschhorn, Mike

    polynomial identities which imply the fol- lowing identities, namely (1) r=1 (1 - xr ) = 1 + r=1 (-1)r (x 1 2 (3r2 -r) + x 1 2 (3r2 +r) ) and (2) r=1 (1 - xr )3 = r=0 (-1)r (2r + 1)x 1 2 (r2 +r) . The first [2] (3) r=1 1 + x2r-1 a (1 + ax2r-1 )(1 - x2r ) = r=- ar xr2 . Both identities (1) and (2) gained

  14. Linear Parameter Varying Control for Actuator Failure

    NASA Technical Reports Server (NTRS)

    Shin, Jong-Yeob; Wu, N. Eva; Belcastro, Christine; Bushnell, Dennis M. (Technical Monitor)

    2002-01-01

    A robust linear parameter varying (LPV) control synthesis is carried out for an HiMAT vehicle subject to loss of control effectiveness. The scheduling parameter is selected to be a function of the estimates of the control effectiveness factors. The estimates are provided on-line by a two-stage Kalman estimator. The inherent conservatism of the LPV design is reducing through the use of a scaling factor on the uncertainty block that represents the estimation errors of the effectiveness factors. Simulations of the controlled system with the on-line estimator show that a superior fault-tolerance can be achieved.

  15. Transfer of newly acquired stimulus valence between identities in dissociative identity disorder (DID).

    PubMed

    Huntjens, Rafaële J C; Peters, Madelon L; Postma, Albert; Woertman, Liesbeth; Effting, Marieke; van der Hart, Onno

    2005-02-01

    Patients with Dissociative Identity Disorder (DID) frequently report episodes of interidentity amnesia, that is amnesia for events experienced by other identities. The goal of the present experiment was to test the implicit transfer of trauma-related information between identities in DID. We hypothesized that whereas declarative information may transfer from one identity to another, the emotional connotation of the memory may be dissociated, especially in the case of negative, trauma-related emotional valence. An evaluative conditioning procedure was combined with an affective priming procedure, both performed by different identities. In the evaluative conditioning procedure, previously neutral stimuli come to refer to a negative or positive connotation. The affective priming procedure was used to test the transfer of this acquired valence to an identity reporting interidentity amnesia. Results indicated activation of stimulus valence in the affective priming task, that is transfer of emotional material between identities. PMID:15629753

  16. The Most General Time-Varying Filter Bank and Time-Varying Lapped Transforms

    Microsoft Academic Search

    Guangyu Wang

    2006-01-01

    In this paper, a model-based method is used to analyze the most general time-varying filter bank, where all parameters in the filter bank change with time, including filter length, decimator factor, and the number of channel. Through modeling the time-varying filter bank at a fixed time point as a time-invariant filter bank, we change the study of the most general

  17. Ethnic identity of older Chinese in Canada.

    PubMed

    Lai, Daniel W L

    2012-06-01

    In Canada's multicultural society, ethnic identity is important to the elderly and can influence areas such as access to services, health promotion and care. Often, the complex nature of ethnic identity is underestimated when looking at cultural groups. This study aims to: (a) validate the factor structure of a Chinese ethnic identity measure for older Chinese in Canada, (b) examine the level of ethnic identity of the participants, and (c) examine the correlates of ethnic identity in these older individuals. Using data from a large, national research project on the elderly Chinese in Canada, this study analyzed the results gathered from a total of 2,272 participants. Principal component analysis, maximum-likelihood confirmatory factor analysis, and multiple regression analysis were performed. The results indicated that ethnic identity of the older Chinese is a multi-dimensional construct made up of three factors: (a) culture related activities, (b) community ties, (c) linkage with country of origin, and (d) cultural identification. The findings have provided a better understanding of how ethnic identity can be measured among the aging Chinese population in Canada. PMID:22198551

  18. ON IDENTITIES BY LARCOMBEFENNESSEY AND CASSINI HELMUT PRODINGER

    E-print Network

    Wild, Marcel

    ON IDENTITIES BY LARCOMBE­FENNESSEY AND CASSINI HELMUT PRODINGER AND STEPHAN WAGNER Abstract. A recent identity of Larcombe and Fennessey is derived via a weighted version of Cassini's identity to link this identity to the classical Cassini identity F2 n+1 - FnFn+2 = (-1)n for Fibonacci numbers; we

  19. Racial and Ego Identity Development in Black Caribbean College Students

    ERIC Educational Resources Information Center

    Sanchez, Delida

    2013-01-01

    This study explored the relationships between racial identity attitudes and ego identity statuses among 255 Black Caribbean college students in the Northeast United States. Findings indicated that racial identity attitudes were predictive of ego identity statuses. Specifically, preencounter racial identity attitudes were predictive of lower scores…

  20. Fuzzy Identity-Based Encryption Amit Sahai1,

    E-print Network

    Sahai, Amit

    Fuzzy Identity-Based Encryption Amit Sahai1, and Brent Waters2 1 University of California, Los of Identity-Based Encryption (IBE) scheme that we call Fuzzy Identity-Based Encryption. In Fuzzy IBE we view an identity as set of descriptive attributes. A Fuzzy IBE scheme allows for a private key for an identity

  1. The Relationship Between Ego Identity, Personal Responsibility, and Facilitative Communication

    ERIC Educational Resources Information Center

    Neuber, Keith; Genthner, Robert

    1977-01-01

    Provides empirical evidence supporting Erikson's postulation of two ego identity status groups (identity achievement and identity diffusion). Shows that persons high in ego identity development demonstrate higher levels of intrapersonal and interpersonal psychological adjustment than persons low in ego identity. (RL)

  2. Identity Development in the Late Twenties: A Never Ending Story

    ERIC Educational Resources Information Center

    Carlsson, Johanna; Wängqvist, Maria; Frisén, Ann

    2015-01-01

    The aim of this study was to investigate identity development in the late 20s in order to learn more about the continued identity development after identity commitments have been made. The starting point for the study was the contradiction between ideas of identity development as a lifelong process and identity status research showing that…

  3. Who Am I?: Identity Formation, Youth, and Therapeutic Recreation.

    ERIC Educational Resources Information Center

    Phoenix, Terri L.

    2001-01-01

    Presents an application of Marcia's (1966) ego identity status paradigm to help therapeutic recreation (TR) professionals facilitate identity development in adolescents as a primary or secondary treatment goal, discussing the relevance of identity to TR; theoretical perspectives on identity development; identity development and implications for TR…

  4. An Analytical Model for University Identity and Reputation Strategy Work

    ERIC Educational Resources Information Center

    Steiner, Lars; Sundstrom, Agneta C.; Sammalisto, Kaisu

    2013-01-01

    Universities face increasing global competition, pressuring them to restructure and find new identities. A multidimensional model: identity, image and reputation of strategic university identity and reputation work is developed. The model includes: organizational identity; employee and student attitudes; symbolic identity; influence from…

  5. Stereoscopic depth perception varies with hues

    NASA Astrophysics Data System (ADS)

    Chen, Zaiqing; Shi, Junsheng; Tai, Yonghang; Yun, Lijun

    2012-09-01

    The contribution of color information to stereopsis is controversial, and whether the stereoscopic depth perception varies with chromaticity is ambiguous. This study examined the changes in depth perception caused by hue variations. Based on the fact that a greater disparity range indicates more efficient stereoscopic perception, the effect of hue variations on depth perception was evaluated through the disparity range with random-dot stereogram stimuli. The disparity range was obtained by constant-stimulus method for eight chromaticity points sampled from the CIE 1931 chromaticity diagram. Eight sample points include four main color hues: red, yellow, green, and blue at two levels of chroma. The results show that the disparity range for the yellow hue is greater than the red hue, the latter being greater than the blue hue and the disparity range for green hue is smallest. We conclude that the perceived depth is not the same for different hues for a given size of disparity. We suggest that the stereoscopic depth perception can vary with chromaticity.

  6. MULTIVARIATE VARYING COEFFICIENT MODEL FOR FUNCTIONAL RESPONSES

    PubMed Central

    Zhu, Hongtu; Li, Runze; Kong, Linglong

    2012-01-01

    Motivated by recent work studying massive imaging data in the neuroimaging literature, we propose multivariate varying coefficient models (MVCM) for modeling the relation between multiple functional responses and a set of covariates. We develop several statistical inference procedures for MVCM and systematically study their theoretical properties. We first establish the weak convergence of the local linear estimate of coefficient functions, as well as its asymptotic bias and variance, and then we derive asymptotic bias and mean integrated squared error of smoothed individual functions and their uniform convergence rate. We establish the uniform convergence rate of the estimated covariance function of the individual functions and its associated eigenvalue and eigenfunctions. We propose a global test for linear hypotheses of varying coefficient functions, and derive its asymptotic distribution under the null hypothesis. We also propose a simultaneous confidence band for each individual effect curve. We conduct Monte Carlo simulation to examine the finite-sample performance of the proposed procedures. We apply MVCM to investigate the development of white matter diffusivities along the genu tract of the corpus callosum in a clinical study of neurodevelopment. PMID:23645942

  7. Varying execution discipline to increase performance

    SciTech Connect

    Campbell, P.L.; Maccabe, A.B.

    1993-12-22

    This research investigates the relationship between execution discipline and performance. The hypothesis has two parts: 1. Different execution disciplines exhibit different performance for different computations, and 2. These differences can be effectively predicted by heuristics. A machine model is developed that can vary its execution discipline. That is, the model can execute a given program using either the control-driven, data-driven or demand-driven execution discipline. This model is referred to as a ``variable-execution-discipline`` machine. The instruction set for the model is the Program Dependence Web (PDW). The first part of the hypothesis will be tested by simulating the execution of the machine model on a suite of computations, based on the Livermore Fortran Kernel (LFK) Test (a.k.a. the Livermore Loops), using all three execution disciplines. Heuristics are developed to predict relative performance. These heuristics predict (a) the execution time under each discipline for one iteration of each loop and (b) the number of iterations taken by that loop; then the heuristics use those predictions to develop a prediction for the execution of the entire loop. Similar calculations are performed for branch statements. The second part of the hypothesis will be tested by comparing the results of the simulated execution with the predictions produced by the heuristics. If the hypothesis is supported, then the door is open for the development of machines that can vary execution discipline to increase performance.

  8. Feynman identity: A special case. I

    SciTech Connect

    da Costa, G.A. [Instituto de Fisica Gleb Wataghin-DRCC, Universidade Estadual de Campinas, Unicamp, Caixa Postal 6165, 13083-970-Campinas, SP, (Brasil)] [Instituto de Fisica Gleb Wataghin-DRCC, Universidade Estadual de Campinas, Unicamp, Caixa Postal 6165, 13083-970-Campinas, SP, (Brasil)

    1997-02-01

    There is an identity due to Feynman which relates graphs and closed curves on a lattice and it was used by Feynman in his combinatorial proof of Onsager{close_quote}s closed formula for the partition function of the two-dimensional Ising model. Long ago Sherman considered a special case of this identity and pointed out similarities with the Witt identity of Lie algebra theory. In this paper and following, we revisit this special case and solve some problems related with it. In particular, the weights are computed explicitly using paths and words and a direct connection with the Witt formula is found. {copyright} {ital 1997 American Institute of Physics.}

  9. Dissociative identity disorder: a controversial diagnosis.

    PubMed

    Gillig, Paulette Marie

    2009-03-01

    A brief description of the controversies surrounding the diagnosis of dissociative identity disorder is presented, followed by a discussion of the proposed similarities and differences between dissociative identity disorder and borderline personality disorder. The phenomenon of autohypnosis in the context of early childhood sexual trauma and disordered attachment is discussed, as is the meaning of alters or alternate personalities. The author describes recent neurosciences research that may relate the symptoms of dissociative identity disorder to demonstrable disordered attention and memory processes. A clinical description of a typical patient presentation is included, plus some recommendations for approaches to treatment. PMID:19724751

  10. Identity, morals, and taboos: beliefs as assets.

    PubMed

    Bénabou, Roland; Tirole, Jean

    2011-01-01

    We develop a theory of moral behavior, individual and collective, based on a general model of identity in which people care about “who they are” and infer their own values from past choices. The model sheds light on many empirical puzzles inconsistent with earlier approaches. Identity investments respond nonmonotonically to acts or threats, and taboos on mere thoughts arise to protect beliefs about the “priceless” value of certain social assets. High endowments trigger escalating commitment and a treadmill effect, while competing identities can cause dysfunctional capital destruction. Social interactions induce both social and antisocial norms of contribution, sustained by respectively shunning free riders or do-gooders. PMID:22073409

  11. Psychotherapy based on identity problems of depressives.

    PubMed

    Kraus, A

    1995-01-01

    I present here what I call my identity-theoretical concept of depression, discussing both bipolar disorders and major depressive disorders. The method is phenomenological in that through interviews with depressives we become aware of their being-in-the-world, their social roles and the various identities they form through identification and under the pressure of their environment. In contrast to the normal individual, whose identity is autonomous, flexible, and continuously changes throughout the life cycle, depressives have what I call an "overidentifying" identity formation. That is to say, they cannot stand back and be autonomous, they must overidentify or throw themselves excessively into whatever particular social expectations they encounter. This leads to an "overadjustment" to the norms of society, a rigidity, and an excessive dependence on others. Patients in the manic phase may show the opposite extreme in their effort to avoid the overidentification tendency. Furthermore, depressives cannot tolerate ambiguity, they cannot deal with the positive and negative characteristics in one or the same object or person. Depressive or manic episodes are precipitated by situations where ambiguity cannot be avoided, or where conflicting identities are demanded at the same time, for example when a high quantity of high quality work is demanded in too short a time for this to be possible. Any sort of changes or role losses that demand flexibility of one's identity or the capacity to step back a bit and suspend one's characteristic habits or identity manifestations will precipitate manic or depressive episodes in such predisposed melancholics. On the basis of my identity-theoretical concept certain guidelines for psychotherapy suggest themselves, and these are presented. I call this "identity therapy," and I distinguish it from cognitive therapy because it is not the cognitive schemes that are disturbed in these patients but rather their identity structure. I discuss separately the guidelines for treatment in the acute and in the rehabilitation phase of the illness. In the former I suggest helping the depressive accept the role of patient in order to relieve the pressure of sociologic conflicting expectations on the patient's brittle identity concept. It is important for the patient to be able to resume social roles and routine activities, beginning in an anxiety-free setting where ego-satisfying achievements are encouraged. In the rehabilitation phase self-reflection is more encouraged, with the patient achieving an understanding of what has precipitated the episode of the illness in terms of the overwhelming of the patient's identity concept.(ABSTRACT TRUNCATED AT 400 WORDS) PMID:7677200

  12. Political, religious and occupational identities in context: placing identity status paradigm in context.

    PubMed

    Solomontos-Kountouri, Olga; Hurry, Jane

    2008-04-01

    This study critically contrasts global identity with domain-specific identities (political, religious and occupational) and considers context and gender as integral parts of identity. In a cross-sectional survey, 1038 Greek Cypriot adolescents (449 boys and 589 girls, mean age 16.8) from the three different types of secondary schools (state, state technical and private) and from different SES completed part of the Extended Objective Measure of Ego Identity Status-2 (EOMEIS-2). The macro-context of Greek Cypriot society is used to understand the role of context in adolescents' identities. Results showed that Greek Cypriot young people were not in the same statuses across their global, political, religious and occupational identities. This heterogeneity in the status of global identity and of each identity domain is partially explained by differences in gender, type of school and SES (socio-economic status). The fact that identity status is found to be reactive to context suggests that developmental stage models of identity status should place greater emphasis on context. PMID:18191999

  13. 21A.226 Ethnic and National Identity, Spring 2005

    E-print Network

    Jackson, Jean

    This course is an introduction to the cross-cultural study of ethnic and national identity. We examine the concept of social identity, consider how gender, religious and racial identity components interact with ethnic and ...

  14. 21A.226 Ethnic and National Identity, Fall 2009

    E-print Network

    Jackson, Jean

    An introduction to the cross-cultural study of ethnic and national identity. We examine the concept of social identity, and consider the ways in which gendered, linguistic, religious, and ethno-racial identity components ...

  15. A one-parameter family of dendriform identities

    Microsoft Academic Search

    Jean-christophe Novelli; Jean-yves Thibon

    2009-01-01

    We prove a q-identity in the dendriform dialgebra of colored free quasi- symmetric functions. For q = 1, we recover identities due to Ebrahimi-Fard, Man- chon, and Patras, in particular the noncommutative Bohnenblust-Spitzer identity.

  16. A Schnorr-Like Lightweight Identity-Based Signature Scheme

    E-print Network

    Garcia, Flavio D.

    that the scheme is secure against existential forgery on adaptive cho- sen message and adaptive identity attacks with the state of the art on identity-based signatures. We draw the conclusion that the Schnorr- like identity

  17. Trust, Identity and Beer Institutional Arrangements for Agricultural Labour in

    E-print Network

    Trust, Identity and Beer Institutional Arrangements for Agricultural Labour in Isunga village/Repro, Uppsala 2013 #12;Trust, Identity and Beer: Institutional Arrangements for Agricultural Labour in Isunga, institutions, labour transactions, contracts, embeddedness, identity, reputation, trust, beer Author's address

  18. 12 CFR 614.4960 - Notice of servicer's identity.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...2014-01-01 false Notice of servicer's identity. 614.4960 Section 614.4960...614.4960 Notice of servicer's identity. (a) Notice requirement...Director's designee) in writing of the identity of the servicer of the loan. The...

  19. 12 CFR 614.4960 - Notice of servicer's identity.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...2013-01-01 false Notice of servicer's identity. 614.4960 Section 614.4960...614.4960 Notice of servicer's identity. (a) Notice requirement...Director's designee) in writing of the identity of the servicer of the loan. The...

  20. 48 CFR 552.204-9 - Personal Identity Verification requirements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 2012-10-01 false Personal Identity Verification requirements. 552.204-9...and Clauses 552.204-9 Personal Identity Verification requirements. As prescribed...insert the following clause: Personal Identity Verification Requirements (OCT...

  1. 12 CFR 614.4960 - Notice of servicer's identity.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...2012-01-01 false Notice of servicer's identity. 614.4960 Section 614.4960...614.4960 Notice of servicer's identity. (a) Notice requirement...Director's designee) in writing of the identity of the servicer of the loan. The...

  2. 48 CFR 552.204-9 - Personal Identity Verification requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 2013-10-01 false Personal Identity Verification requirements. 552.204-9...and Clauses 552.204-9 Personal Identity Verification requirements. As prescribed...insert the following clause: Personal Identity Verification Requirements (OCT...

  3. 48 CFR 552.204-9 - Personal Identity Verification requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 2014-10-01 false Personal Identity Verification requirements. 552.204-9...and Clauses 552.204-9 Personal Identity Verification requirements. As prescribed...insert the following clause: Personal Identity Verification Requirements (OCT...

  4. 46 CFR 12.809 - Citizenship and identity.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Citizenship and identity. 12.809 Section 12.809 Shipping...Vessels § 12.809 Citizenship and identity. (a) Instead of the requirements... (b) To meet the citizenship and identity requirements of this subpart,...

  5. 21 CFR 21.44 - Verification of identity.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Verification of identity. 21.44 Section 21.44 Food...Systems § 21.44 Verification of identity. (a) An individual seeking access...and Drug Administration to determine his identity. The identification required...

  6. 12 CFR 614.4960 - Notice of servicer's identity.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...2010-01-01 false Notice of servicer's identity. 614.4960 Section 614.4960...614.4960 Notice of servicer's identity. (a) Notice requirement...Director's designee) in writing of the identity of the servicer of the loan. The...

  7. 12 CFR 614.4960 - Notice of servicer's identity.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...2011-01-01 false Notice of servicer's identity. 614.4960 Section 614.4960...614.4960 Notice of servicer's identity. (a) Notice requirement...Director's designee) in writing of the identity of the servicer of the loan. The...

  8. 21 CFR 21.44 - Verification of identity.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Verification of identity. 21.44 Section 21.44 Food...Systems § 21.44 Verification of identity. (a) An individual seeking access...and Drug Administration to determine his identity. The identification required...

  9. 17 CFR 201.65 - Identity and signature.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Identity and signature. 201.65 Section...Exchange Act of 1934 § 201.65 Identity and signature. Applications pursuant to this subpart may omit the identity, mailing address, and...

  10. Anonymous Hierarchical Identity-Based Encryption (Without Random Oracles)

    E-print Network

    Anonymous Hierarchical Identity-Based Encryption (Without Random Oracles) Xavier Boyen Brent/085. Abstract We present an identity-based cryptosystem that features fully anonymous ciphertexts private communication, etc. Our results resolve two open problems pertaining to anonymous identity

  11. Psychotherapists' spiritual, religious, atheist or agnostic identity and their practice of psychotherapy: a grounded theory study.

    PubMed

    Magaldi-Dopman, Danielle; Park-Taylor, Jennie; Ponterotto, Joseph G

    2011-05-01

    In this present grounded theory study, 16 experienced psychologists, who practiced from varied theoretical orientations and came from diverse religious/spiritual/nonreligious backgrounds, explored their personal religious/spiritual/nonreligious identity development journeys, their experiences with clients' religious/spiritual content in psychotherapy sessions, and how their identity may have influenced the way they interacted with religious/spiritual material during sessions. Results revealed that psychologists' spiritual/religious/nonreligious identity is conflicted and complex and that their academic and clinical training did not provide sufficient opportunity to examine how this may affect their therapeutic work. A tentative grounded theory emerged suggesting that psychologists both identified with and were activated by clients' spiritual/religious conflicts and their internal experiences about the spiritual/religious content, both of which presented significant challenges to therapeutic work. PMID:21480053

  12. Measuring Professional Identity Development among Counselor Trainees

    ERIC Educational Resources Information Center

    Prosek, Elizabeth A.; Hurt, Kara M.

    2014-01-01

    This study examined the differences in professional identity development between novice and advanced counselor trainees (N = 161). Multivariate analyses of variance indicated significant differences between groups. Specifically, advanced counselor trainees demonstrated greater professional development compared with novice counselor trainees. No…

  13. Followership, clinical leadership and social identity.

    PubMed

    Mannion, Hester; McKimm, Judy; O'Sullivan, Helen

    2015-05-01

    This article explores how the concepts of followership, social identity and social influence help clinical leaders and followers better understand how leadership processes function within and between individuals, teams and complex organizations. PMID:25959938

  14. Gender Identity and Autism Spectrum Disorders

    PubMed Central

    van Schalkwyk, Gerrit I.; Klingensmith, Katherine; Volkmar, Fred R.

    2015-01-01

    In this review, we briefly summarize much of the existing literature on gender-related concerns and autism spectrum disorders (ASD), drawing attention to critical shortcomings in our current understanding and potential clinical implications. Some authors have concluded that gender identity disorder (GID), or gender dysphoria (GD), is more common in individuals with ASD, providing a range of potential explanations. However, existing literature is quantitatively limited, and our capacity to draw conclusions is further complicated by conceptual challenges regarding how gender identity is best understood. Discourses that emphasize gender as a component of identity formation are gaining prominence and seem particularly salient when applied to ASD. Individuals with ASD should enjoy equal rights with regard to treatment for gender dysphoria. Clinicians may be able to assist individuals in understanding this aspect of their identity by broadening the social frame and facilitating an exploration of gender roles. PMID:25744543

  15. Deleuze, difference and the critique of identity 

    E-print Network

    Sherwood-Moore, Robert Edward

    2000-01-01

    represent the Porms because they resemble them. They share an internal, spiritual resemblance with the ultimately real things themselves. In this sense. . . the Platonic model is defined by its self-identity, while the copy is defined by its exemplary...

  16. Kindergarten Teachers: Working through Our Identity Crisis.

    ERIC Educational Resources Information Center

    Granucci, Pamela Lesiak

    1990-01-01

    Discusses the reasons why kindergarten teachers have an "identity crisis" and have come to be in professional limbo in terms of their historical roots, educational background and training, and certification procedures. (BB)

  17. Nation et identite (Nation and Identity).

    ERIC Educational Resources Information Center

    Kimmel, Alain

    1991-01-01

    As illustrated in media articles, France is in a political, ideological, and cultural identity crisis. Events within and outside Europe and world migration patterns have worked together to create a confusion of national role, destiny, citizenry, and traditional institutions. (MSE)

  18. Gender identity and autism spectrum disorders.

    PubMed

    van Schalkwyk, Gerrit I; Klingensmith, Katherine; Volkmar, Fred R

    2015-03-01

    In this review, we briefly summarize much of the existing literature on gender-related concerns and autism spectrum disorders (ASD), drawing attention to critical shortcomings in our current understanding and potential clinical implications. Some authors have concluded that gender identity disorder (GID), or gender dysphoria (GD), is more common in individuals with ASD, providing a range of potential explanations. However, existing literature is quantitatively limited, and our capacity to draw conclusions is further complicated by conceptual challenges regarding how gender identity is best understood. Discourses that emphasize gender as a component of identity formation are gaining prominence and seem particularly salient when applied to ASD. Individuals with ASD should enjoy equal rights with regard to treatment for gender dysphoria. Clinicians may be able to assist individuals in understanding this aspect of their identity by broadening the social frame and facilitating an exploration of gender roles. PMID:25744543

  19. [Identity from the systems theory viewpoint].

    PubMed

    Reiter, L

    1990-01-01

    During the last two decades systems theory has changed. The theory of autopoietic (selfreferential) systems was introduced by Maturana and Varela and modified by Luhmann. The concept of identity is discussed in the light of the new theories. PMID:2204907

  20. Identity Theft in Community Mental Health Patients

    PubMed Central

    Klopp, Jonathon; Konrad, Shane; Yanofski, Jason

    2007-01-01

    Identity theft is a serious problem in the United States, and persons with enduring mental illnesses may be particularly vulnerable to becoming victims of this crime. Victims of identity theft experience a variety of consequences that include financial loss and serious emotional distress. Little is known about the impact of identity theft on individuals with mental illnesses. The two cases from a community mental health center presented in this article demonstrate many of the facets that may be associated with an increased risk for becoming the victim of identity theft. A summary of preventive steps as well as steps involved in resolving the crime once one has become a victim are presented. PMID:20806029

  1. AI Technologies to Defeat Identity Theft Vulnerabilities

    Microsoft Academic Search

    Latanya Sweeney

    When a large number of citizens are at risk to identity theft, national security and economic prosperity are threatened. This work shows that thousands of Americans are at such risk, and introduces technology, named \\

  2. Periodic structures with time-varying loads

    NASA Technical Reports Server (NTRS)

    Epp, Larry W.; Chan, Chi H.; Mittra, Raj

    1992-01-01

    A new method is described for generating and predicting the power scattered at multiple frequencies from a periodic array excited by a monochromatic incident plane wave. The scattered power is predicted by developing an equivalent circuit representation from the exact method of moment solution of the unloaded periodic problem and then employing a modified method of moments approach to predict the scattered fields due to time-varying loads. An advantage of this method is that the generality of the equivalent circuit can be exploited to study the effects of different loads on the power scattered in the harmonic frequencies with a minimal amount of effort. The method can also be applied to multiple incident frequencies.

  3. Inference of temporally varying Bayesian Networks

    PubMed Central

    Thorne, Thomas; Stumpf, Michael P. H.

    2012-01-01

    Motivation: When analysing gene expression time series data, an often overlooked but crucial aspect of the model is that the regulatory network structure may change over time. Although some approaches have addressed this problem previously in the literature, many are not well suited to the sequential nature of the data. Results: Here, we present a method that allows us to infer regulatory network structures that may vary between time points, using a set of hidden states that describe the network structure at a given time point. To model the distribution of the hidden states, we have applied the Hierarchical Dirichlet Process Hidden Markov Model, a non-parametric extension of the traditional Hidden Markov Model, which does not require us to fix the number of hidden states in advance. We apply our method to existing microarray expression data as well as demonstrating is efficacy on simulated test data. Contact: thomas.thorne@imperial.ac.uk PMID:23074260

  4. WKB approximation for abruptly varying potential wells

    NASA Astrophysics Data System (ADS)

    Amthong, Attapon

    2014-11-01

    We present an approach to obtain eigenfunctions and eigenenergies for abruptly varying potentials in the framework of the Wentzel-Kramers-Brillouin (WKB) approximation. To illustrate it, two examples of the potentials are studied. The first one is the combination of a step barrier and a harmonic oscillator potential, and the second one consists of a step barrier and a linear potential. The formulation of a WKB quantization rule is proposed. Our approach shows that WKB energies and those from numerical calculation are in good agreement. According to matching conditions used, WKB wavefunctions in this present work are violated at only one classical turning point, but they behave well at another point where the potentials are discontinuous.

  5. Time varying arctic climate change amplification

    SciTech Connect

    Chylek, Petr [Los Alamos National Laboratory; Dubey, Manvendra K [Los Alamos National Laboratory; Lesins, Glen [DALLHOUSIE U; Wang, Muyin [NOAA/JISAO

    2009-01-01

    During the past 130 years the global mean surface air temperature has risen by about 0.75 K. Due to feedbacks -- including the snow/ice albedo feedback -- the warming in the Arctic is expected to proceed at a faster rate than the global average. Climate model simulations suggest that this Arctic amplification produces warming that is two to three times larger than the global mean. Understanding the Arctic amplification is essential for projections of future Arctic climate including sea ice extent and melting of the Greenland ice sheet. We use the temperature records from the Arctic stations to show that (a) the Arctic amplification is larger at latitudes above 700 N compared to those within 64-70oN belt, and that, surprisingly; (b) the ratio of the Arctic to global rate of temperature change is not constant but varies on the decadal timescale. This time dependence will affect future projections of climate changes in the Arctic.

  6. Fundamental Investigation of Circumferentially Varying Stator Cascades

    NASA Astrophysics Data System (ADS)

    Farnsworth, John A. N.

    2011-12-01

    The fundamentals of circumferentially varying stator cascades and their interactions with a downstream fixed pitch propeller were investigated experimentally utilizing multiple measurement techniques. The flow physics associated with the isolated circumferentially varying, or cyclic, stator cascade was studied in a wind tunnel environment through string tuft flow visualization, 2-D PIV, Stereoscopic PIV, and static surface pressure measurements. The coupled wake physics of the cyclic stator cascade with propeller were then investigated in a water tunnel using Stereo PIV. Finally, the global performance of components and the coupled system were quantified through force and moment measurements on the model in the water tunnel. A cyclic distribution of the stators' deflections resulted in non-axisymmetric distributions of the surface pressure and the flow field downstream of the stator array. In the model near wake the flow field is associated with secondary flow patterns in the form of coherent streamwise vortical structures that can be described by potential flow mechanisms. The collective pitch distribution of the stators produces a flow field that resembles a potential Rankine vortex, whereas the cyclic pitch distribution generates a flow pattern that can be described by a potential vortex pair in a cross flow. The stator distribution alone produces a significant side force that increases linearly with stator pitch amplitude. When a propeller is incorporated downstream from the cyclic cascade the side force from the stator cascade is reduced, but a small vertical force and pitching moment are created. The generation of these secondary forces and moments can be related to the redistribution of the tangential flow from the cyclic cascade into the axial direction by the retreating and advancing blade states of the fixed pitch propeller.

  7. [Second year nursing students' identity crisis. "Assessment of objectives"].

    PubMed

    Boittin, Isabelle

    2002-03-01

    Nursing students, guided by aspirations, begin training with an idealized representation of the profession, and the experiences they will encounter during their studies will vary progressively. Nursing training is based initially on a pedagogical system alternating between the classroom and the work place, exposing the student to a variety of situations. This process of work experience during the three years of study is marked by a crisis period during the second year. This involves an identity crisis resulting in a change of objectives. The analysis indicates that this is structural. The beginning of the second year is characterised by the student's confrontation with the theoretical and practical applications of the course. It is the result of a year's experience and instruction, which puts into question the student's vision, beliefs, and the orientation towards a new conception of himself/herself and of the world. The realisation of an incongruity, this reality check, is followed by a feeling of deception. This conflict, common in the second year, must be recognised in order to avoid further compromise to the identity's transformation. As soon as the student finds himself/herself committed to a training program that does not contribute to the realisation of his/her objectives, the feeling of being thrown off balance in relation to his/her point of reference increases, and the end result will be absenteeism or opposition. The handling of this identity crisis, as well as the motivational procedure, implies a modification in the quality of the instructor and in our way of thinking and acting. Are we adequately prepared to manage this crisis? Do we have access to the theories needed to resolve this cognitive conflict? PMID:12001629

  8. Imagined Communities, Identity, and English Language Learning

    Microsoft Academic Search

    Aneta Pavlenko; Bonny Norton

    This chapter introduces the notion of imagined communities as a way to better understand the relationship between second language learning and identity. It is argued that language\\u000a learners’ actual and desired memberships in imagined communities affect their learning trajectories, influencing their agency,\\u000a motivation, investment, and resistance in the learning of English. These influences are exemplified with regard to five identity

  9. Identity Development Among Sexual-Minority Youth

    Microsoft Academic Search

    Ritch C. Savin-Williams

    \\u000a \\u000a Sexual identity is the name and meaning individuals assign to themselves based on the most salient sexual aspects of their life – such as\\u000a sexual attractions, fantasies, desires, and behaviors. Sexual identities usually fall within existing social categories, such\\u000a as straight, bisexual, or lesbian\\/gay, and are historically and culturally specific. Youth in today’s cohort have expanded\\u000a the list of sexual

  10. Inversion identities for inhomogeneous face models

    E-print Network

    Frahm, Holger

    2014-01-01

    We derive exact inversion identities satisfied by the transfer matrix of inhomogeneous interaction-round-a-face (IRF) models with arbitrary boundary conditions using the underlying integrable structure and crossing properties of the local Boltzmann weights. For the critical restricted solid-on-solid (RSOS) models these identities together with some information on the analytical properties of the transfer matrix determine the spectrum completely and allow to derive the Bethe equations for both periodic and general open boundary conditions.

  11. Inversion identities for inhomogeneous face models

    NASA Astrophysics Data System (ADS)

    Frahm, Holger; Karaiskos, Nikos

    2014-10-01

    We derive exact inversion identities satisfied by the transfer matrix of inhomogeneous interaction-round-a-face (IRF) models with arbitrary boundary conditions using the underlying integrable structure and crossing properties of the local Boltzmann weights. For the critical restricted solid-on-solid (RSOS) models these identities together with some information on the analytical properties of the transfer matrix determine the spectrum completely and allow to derive the Bethe equations for both periodic and general open boundary conditions.

  12. Identity-Based Encryption Comes of Age

    Microsoft Academic Search

    Luther Martin

    2008-01-01

    Public-key technology is due for another round of useful innovations. On June 3 and 4, 2008, the National Institute for Standards and Technology (NIST) held the Applications of pairing based cryptography: identity based encryption and beyond workshop (www.nist.gov\\/ibe). Significantly, identity-based encryption (IBE) has now received enough interest to warrant such a workshop, which probably indicates the technology's general acceptance. But

  13. Cybersecurity through an Identity Management System

    Microsoft Academic Search

    Elli Androulaki; Maritza Johnson; Binh Vo; Steven Bellovin

    Abstract— Cybersecurity is a concern,of growing,importance,as internet usage continues to spread,into new,areas. Strong authentication combined,with accountability is a powerful,measure,towards,indi- viduals’ protection against any type of identity theft. On the other hand, such strong identification raises privacy concerns. In this paper, we argue that authentication, accountability and privacy can be combined into a single, deployable identity management system,which,can,be adopted,to current,citizenship database

  14. Relationship between identity and equivalence conservation

    Microsoft Academic Search

    John E. Northman; Gerald E. Gruen

    1970-01-01

    Gave 60 2nd and 3rd graders 3 identity and 3 equivalence conservation tests to examine the hypothesis that identity conservation developmentally precedes equivalence conservation. Results indicate that conservation was exhibited in an all-or-none fashion with 3rd grade boys making more conservation responses than 3rd grade girls. No sex difference was found with 2nd graders. Thus results failed to support the

  15. A simple adaptive control for full and reduced-order synchronization of uncertain time-varying chaotic systems

    NASA Astrophysics Data System (ADS)

    Vincent, U. E.; Guo, Rongwei

    2009-11-01

    In this paper, a simple adaptive feedback control is proposed for full and reduced-order synchronization of time-varying and strictly uncertain chaotic systems. Our method uses only one feedback gain with parameter adaptation law and converges very fast even in the presence of noise. For full synchronization, a drive-response system consisting of two second-order identical parametrically excited oscillators achieve global synchronization; while for reduced-order synchronization, the dynamical evolution of a second-order parametrically driven oscillator is synchronized with the projection of a third-order time-varying chaotic system. The effectiveness of our approach is demonstrated using numerical simulations.

  16. Negotiating identity transition when leaving forensic hospitals.

    PubMed

    Coffey, Michael

    2012-09-01

    The transition from hospital patient to community resident is something which is far from straightforward. For those with multiple labels of disability, chronicity and criminal offending behaviours this transition is particularly complicated. This article reports on a study of accounts provided by a hard-to-reach group of patients and their workers in one region of the UK. Through the use of 59 in-depth interviews with conditionally discharged persons, community mental health nurses and social workers, everyday understandings of the process of discharge and reintegration were investigated. The primary focus was on how identity was handled in the talk of discharged persons and what workers said about this. Analysis focused upon the action-oriented nature of accounts related to discharge, community return and attempts to construct viable identities in the outside world. This study found that stories did the work of loosening previous labels. Illness as mitigation was deployed as an important resource for this purpose. Deviant labels signifying mental illness and criminality presented enduring identity-threats. It was found that as they adjust to return to the community, individuals deploy particular types of identity talk to neutralize ascriptions of continuing deviance and make claims to normality. Workers for their part supported illness as mitigation but continued to orient towards risk as an enduring identity label. In their day-to-day lives the accomplishment of 'ordinary' identities was a continuing task of discharged persons in maintaining community return. PMID:22392366

  17. Characteristics of place identity as part of professional identity development among pre-service teachers

    NASA Astrophysics Data System (ADS)

    Gross, Michal; Hochberg, Nurit

    2014-10-01

    How do pre-service teachers perceive place identity, and is there a connection between their formative place identity and the development of their professional teaching identity? These questions are probed among pre-service teachers who participated in a course titled "Integrating Nature into Preschool." The design of the course was based on a multidimensional teaching model that yields a matrix of students' perceptions and the practical aspects derived from them as the students undergo a range of experiences in the course of an academic year. The profile of perceptions uses a mixed-methods analysis that presents statements attesting to four indicators of place identity: familiarity, belonging, involvement, and meaningfulness. These indicators point to a broad spectrum of perceptions arrayed on a continual time axes as well as differences in perception and its complexity. A connection between the development of place identity and that of professional teaching identity is found.

  18. Memory transfer for emotionally valenced words between identities in dissociative identity disorder.

    PubMed

    Huntjens, Rafaële J C; Peters, Madelon L; Woertman, Liesbeth; van der Hart, Onno; Postma, Albert

    2007-04-01

    The present study aimed to determine interidentity retrieval of emotionally valenced words in dissociative identity disorder (DID). Twenty-two DID patients participated together with 25 normal controls and 25 controls instructed to simulate DID. Two wordlists A and B were constructed including neutral, positive and negative material. List A was shown to one identity, while list B was shown to another identity claiming total amnesia for the words learned by the first identity. The identity claiming amnesia was tested for intrusions from list A words into the recall of words from list B and recognition of the words learned by both identities. Test results indicated no evidence of total interidentity amnesia for emotionally valenced material in DID. It is argued that dissociative amnesia in DID may more adequately be described as a disturbance in meta-memory functioning instead of an actual retrieval inability. PMID:16928360

  19. Time-varying wavelet estimation and deconvolution by kurtosis maximization

    E-print Network

    van der Baan, Mirko

    Time-varying wavelet estimation and deconvolution by kurtosis maximization Mirko van der Baan1 reveal the phase of a seismic wavelet. It is robust enough to detect time-varying phase changes. Phase deconvo- lution can be achieved using time-varying Wiener filtering. Time-varying wavelet extraction

  20. Space, Scale and Languages: Identity Construction of Cross-Boundary Students in a Multilingual University in Hong Kong

    ERIC Educational Resources Information Center

    Gu, Mingyue Michelle; Tong, Ho Kin

    2012-01-01

    Drawing on the notions of scale and space, this paper investigates identity construction among a group of mainland Chinese cross-boundary students by analysing their language choices and linguistic practices in a multilingual university in Hong Kong. The research illustrates how movement across spaces by these students produces varying index…

  1. The Moderating Role of Centrality on Associations between Ethnic Identity Affirmation and Ethnic Minority College Students' Mental Health

    ERIC Educational Resources Information Center

    Brittian, Aerika S.; Umana-Taylor, Adriana J.; Lee, Richard M.; Zamboanga, Byron L.; Kim, Su Yeong; Weisskirch, Robert S.; Castillo, Linda G.; Whitbourne, Susan Krauss; Hurley, Eric A.; Huynh, Que-Lam; Brown, Elissa J.; Caraway, S. Jean

    2013-01-01

    Background: Prior literature has shown that ethnic affirmation, one aspect of ethnic identity, is positively associated with mental health. However, the associations between ethnic affirmation and mental health may vary depending how much importance individuals place on their ethnic group membership (ie, centrality). Methods: Using path analysis,…

  2. High School Religious Context and Reports of Same-Sex Attraction and Sexual Identity in Young Adulthood

    ERIC Educational Resources Information Center

    Wilkinson, Lindsey; Pearson, Jennifer

    2013-01-01

    The objectives of this study are to understand the association between high school religious context in adolescence and the reporting of same-sex attraction and sexual identity in young adulthood and how these associations vary by gender. Previous studies have considered how high school contexts shape the well-being of sexual minority youth, yet…

  3. Vector curvaton with varying kinetic function

    NASA Astrophysics Data System (ADS)

    Dimopoulos, Konstantinos; Kar?iauskas, Mindaugas; Wagstaff, Jacques M.

    2010-01-01

    A new model realization of the vector curvaton paradigm is presented and analyzed. The model consists of a single massive Abelian vector field, with a Maxwell-type kinetic term. By assuming that the kinetic function and the mass of the vector field are appropriately varying during inflation, it is shown that a scale-invariant spectrum of superhorizon perturbations can be generated. These perturbations can contribute to the curvature perturbation of the Universe. If the vector field remains light at the end of inflation it is found that it can generate substantial statistical anisotropy in the spectrum and bispectrum of the curvature perturbation. In this case the non-Gaussianity in the curvature perturbation is predominantly anisotropic, which will be a testable prediction in the near future. If, on the other hand, the vector field is heavy at the end of inflation then it is demonstrated that particle production is approximately isotropic and the vector field alone can give rise to the curvature perturbation, without directly involving any fundamental scalar field. The parameter space for both possibilities is shown to be substantial. Finally, toy models are presented which show that the desired variation of the mass and kinetic function of the vector field can be realistically obtained, without unnatural tunings, in the context of supergravity or superstrings.

  4. Honeybee odometry: performance in varying natural terrain.

    PubMed

    Tautz, Juergen; Zhang, Shaowu; Spaethe, Johannes; Brockmann, Axel; Si, Aung; Srinivasan, Mandyam

    2004-07-01

    Recent studies have shown that honeybees flying through short, narrow tunnels with visually textured walls perform waggle dances that indicate a much greater flight distance than that actually flown. These studies suggest that the bee's "odometer" is driven by the optic flow (image motion) that is experienced during flight. One might therefore expect that, when bees fly to a food source through a varying outdoor landscape, their waggle dances would depend upon the nature of the terrain experienced en route. We trained honeybees to visit feeders positioned along two routes, each 580 m long. One route was exclusively over land. The other was initially over land, then over water and, finally, again over land. Flight over water resulted in a significantly flatter slope of the waggle-duration versus distance regression, compared to flight over land. The mean visual contrast of the scenes was significantly greater over land than over water. The results reveal that, in outdoor flight, the honeybee's odometer does not run at a constant rate; rather, the rate depends upon the properties of the terrain. The bee's perception of distance flown is therefore not absolute, but scene-dependent. These findings raise important and interesting questions about how these animals navigate reliably. PMID:15252454

  5. Honeybee Odometry: Performance in Varying Natural Terrain

    PubMed Central

    Tautz, Juergen; Zhang, Shaowu; Spaethe, Johannes; Brockmann, Axel; Si, Aung

    2004-01-01

    Recent studies have shown that honeybees flying through short, narrow tunnels with visually textured walls perform waggle dances that indicate a much greater flight distance than that actually flown. These studies suggest that the bee's “odometer” is driven by the optic flow (image motion) that is experienced during flight. One might therefore expect that, when bees fly to a food source through a varying outdoor landscape, their waggle dances would depend upon the nature of the terrain experienced en route. We trained honeybees to visit feeders positioned along two routes, each 580 m long. One route was exclusively over land. The other was initially over land, then over water and, finally, again over land. Flight over water resulted in a significantly flatter slope of the waggle-duration versus distance regression, compared to flight over land. The mean visual contrast of the scenes was significantly greater over land than over water. The results reveal that, in outdoor flight, the honeybee's odometer does not run at a constant rate; rather, the rate depends upon the properties of the terrain. The bee's perception of distance flown is therefore not absolute, but scene-dependent. These findings raise important and interesting questions about how these animals navigate reliably. PMID:15252454

  6. Time-Varying Modeling of Cerebral Hemodynamics

    PubMed Central

    Marmarelis, Vasilis Z.; Shin, Dae C.; Orme, Melissa; Zhang, Rong

    2014-01-01

    The scientific and clinical importance of cerebral hemodynamics has generated considerable interest in their quantitative understanding via computational modeling. In particular, two aspects of cerebral hemodynamics, Cerebral Flow Autoregulation (CFA) and CO2 Vasomotor Reactivity (CVR), have attracted much attention because they are implicated in many important clinical conditions and pathologies (orthostatic intolerance, syncope, hypertension, stroke, vascular dementia, MCI, Alzheimer’s disease and other neurodegenerative diseases with cerebrovascular components). Both CFA and CVR are dynamic physiological processes by which cerebral blood flow is regulated in response to fluctuations in cerebral perfusion pressure and blood CO2 tension. Several modeling studies to date have analyzed beat-to-beat hemodynamic data in order to advance our quantitative understanding of CFA-CVR dynamics. A confounding factor in these studies is the fact that the dynamics of the CFA-CVR processes appear to vary with time (i.e. changes in cerebrovascular characteristics) due to neural, endocrine and metabolic effects. This paper seeks to address this issue by tracking the changes in linear time-invariant models obtained from short successive segments of data from 10 healthy human subjects. The results suggest that systemic variations exist but have stationary statistics and, therefore, the use of time-invariant modeling yields “time-averaged models” of physiological and clinical utility. PMID:24184697

  7. General dynamics of varying-alpha universes

    NASA Astrophysics Data System (ADS)

    Barrow, John D.; Graham, Alexander A. H.

    2013-11-01

    We introduce and study extensions of the varying alpha theory of Bekenstein-Sandvik-Barrow-Magueijo to allow for an arbitrary coupling function and self-interaction potential term in the theory. We study the full evolution equations without assuming that variations in alpha have a negligible effect on the expansion scale factor and the matter density evolution, as was assumed in earlier studies. The background Friedmann-Robertson-Walker cosmology of this model in the cases of zero and nonzero spatial curvature is studied in detail, using dynamical systems techniques, for a wide class of potentials and coupling functions. All the asymptotic behaviors are found, together with some new solutions. We study the cases where the electromagnetic parameter, zeta, is positive and negative, corresponding to magnetic and electrostatic energy domination in the nonrelativistic matter. In particular, we investigate the cases where the scalar field driving alpha variations has exponential and power-law self-interaction potentials and the behavior of theories where the coupling constant between matter and alpha variations is no longer a constant.

  8. Induction accelerators with varied core materials

    NASA Astrophysics Data System (ADS)

    Molvik, A. W.; Meier, W. R.; Faltens, A.; Reginato, L. L.; Smith, C. H.

    1998-11-01

    We discuss system code studies of high-current heavy-ion accelerators, involving tradeoffs among induction core materials with varying ?B, magnetization loss, and cost. Large masses of magnetic core material are required for many of the induction accelerator-based projects currently under study; the quantities required exceed 10^7 kg for a linear heavy-ion fusion driver, so core performance and cost are critical issues. We have evaluated moderate size, 1 to 11 kg, cores of amorphous and nanocrystalline alloys. We characterized the materials in terms of the flux swing ?B from -B_remanent to +B_saturation, and the energy loss versus dB/dt. We found sources for each material that could apply an insulating coating, wind, and then anneal the cores at 350-550^o C. The result is core performance near the ultimate small sample performance, with higher ?B and lower losses than the earlier approaches of using as-cast material or rewinding after anneal, usually insulated with thin mylar ( 4?m thick).

  9. Pediatric lupus: varied haematological picture and presentation.

    PubMed

    Thakur, Neha; Chandra, Jagdish; Dhingra, Bhavna; Singh, V

    2015-03-01

    Systemic lupus erythematosus (SLE) is a chronic, multisystem, autoimmune disease characterized by periods of increased disease activity caused by inflammation of blood vessels and connective tissue. Pediatric patients with SLE have a more severe clinical course when compared with adults. Patients commonly present with rash, fever, and arthritis, although the presentation may be unpredictable. Hematological findings are more predominant in children than adults. Thirty-nine percent of children with SLE will develop hematological abnormalities, one of the American Rheumatic Association criteria for classifying the disease. In our case series we found varied hematological picture and presentation. We present here four case reports of SLE cases with interesting hematological features. Our first case is a 13 month old female child who was initially diagnosed as Evans syndrome and 2 years later diagnosed as SLE. Second case is a 3 year old male child who had SLE with warm antibody AIHA. Third case is a 6 year old female child who presented with AIHA and was diagnosed with SLE 6 years later. Fourth case is a 6 year old female child diagnosed as SLE with aplastic anemia. Hematological findings should be carefully assessed and treated in order to decrease disease related morbidity. PMID:25548448

  10. Estimation of the continuously varying Doppler effect

    NASA Astrophysics Data System (ADS)

    Nelson, D. J.; Troxell, S. J.

    2010-04-01

    There are many applications for which it is important to resolve the location and motion of a target position. For the static situation in which a target transmitter and several receivers are not in motion, the target may be completely resolved by triangulation using relative time delays estimated by several receivers at known locations. These delays are normally estimated from the location of peaks in the magnitude of the cross-correlation function. For active radars, a transmitted signal is reflected by the target, and range and radial velocity are estimated from the delay and Doppler effects on the received signal. In this process, Doppler effects are conventionally modeled as a shift in frequency, and delay and Doppler are estimated from a cross-ambiguity function (CAF) in which delay and Doppler frequency shift are assumed to be independent and approximately constant. Delay and Doppler are jointly estimated as the location of the peak magnitude of the CAF plane. We present methods for accurately estimating delay for the static case and delay and the time-varying Doppler effects for non-static models, such as the radar model.

  11. Stratospheric Impact of Varying Sea Surface Temperatures

    NASA Technical Reports Server (NTRS)

    Newman, Paul A.; Nash, Eric R.; Nielsen, Jon E.; Waugh, Darryn; Pawson, Steven

    2004-01-01

    The Finite-Volume General Circulation Model (FVGCM) has been run in 50 year simulations with the: 1) 1949-1999 Hadley Centre sea surface temperatures (SST), and 2) a fixed annual cycle of SSTs. In this presentation we first show that the 1949-1999 FVGCM simulation produces a very credible stratosphere in comparison to an NCEP/NCAR reanalysis climatology. In particular, the northern hemisphere has numerous major and minor stratospheric warming, while the southern hemisphere has only a few over the 50-year simulation. During the northern hemisphere winter, temperatures are both warmer in the lower stratosphere and the polar vortex is weaker than is found in the mid-winter southern hemisphere. Mean temperature differences in the lower stratosphere are shown to be small (less than 2 K), and planetary wave forcing is found to be very consistent with the climatology. We then will show the differences between our varying SST simulation and the fixed SST simulation in both the dynamics and in two parameterized trace gases (ozone and methane). In general, differences are found to be small, with subtle changes in planetary wave forcing that lead to reduced temperatures in the SH and increased temperatures in the NH.

  12. Identical synchronization in chaotic jerk dynamical systems

    NASA Astrophysics Data System (ADS)

    Patidar, Vinod; Sud, K. K.

    2006-06-01

    It has been recently investigated that the jerk dynamical systems are the simplest ever systems, which possess variety of dynamical behaviors including chaotic motion. Interestingly, the jerk dynamical systems also describe various phenomena in physics and engineering such as electrical circuits, mechanical oscillators, laser physics, solar wind driven magnetosphere ionosphere (WINDMI) model, damped harmonic oscillator driven by nonlinear memory term, biological systems etc. In many practical situations chaos is undesirable phenomenon, which may lead to irregular operations in physical systems. Thus from a practical point of view, one would like to convert chaotic solutions into periodic limit cycle or fixed point solutions. On the other hand, there has been growing interest to use chaos profitably by synchronizing chaotic systems due to its potential applications in secure communication. In this paper, we have made a thorough investigation of synchronization of identical chaotic jerk dynamical systems by implementing three well-known techniques: (i) Pecora-Carroll (PC) technique, (ii) Feedback (FB) technique and (iii) Active Passive decomposition (APD). We have given a detailed review of these techniques followed by the results of our investigations of identical synchronization of chaos in jerk dynamical systems. The stability of identical synchronization in all the aforesaid methods has also been discussed through the transversal stability analysis. Our extensive numerical calculation results reveal that in PC and FB techniques the x-drive configuration is able to produce the stable identical synchronization in all the chaotic jerk dynamical systems considered by us (except for a few cases), however y-drive and z-drive configurations do not lead to the stable identical synchronization. For the APD approach, we have suggested a generalized active passive decomposition, which leads to the stable identical synchronization without being bothered about the specific form of the jerk dynamical system. Several other active passive decompositions have also been listed with their corresponding conditional Lyapunov exponents to achieve the stable identical synchronization in various chaotic jerk dynamical systems.

  13. Overview of the retention in subcritical fluid chromatography with varied polarity stationary phases.

    PubMed

    Lesellier, Eric

    2008-05-01

    Retention and separation of achiral compounds in supercritical fluid chromatography (SFC) depend on numerous parameters: some of these parameters are identical to those encountered in HPLC, such as the mobile phase polarity, while others are specific to SFC, as the density changes of the fluid, due to temperature and/or pressure variations. Additional effects are also related to the fluid compressibility, leading to unusual retention changes in SFC, for instance when flow rate or column length is varied. These additional effects can be minimised by working at lower temperatures in the subcritical domain, simplifying the understanding of retention behaviours. In these subcritical conditions, varied modifiers can be mixed to carbon dioxide, from hexane to methanol, allowing tuning the mobile phase polarity. With nonpolar modifiers, polar stationary phases are classically used. These chromatographic conditions are close to the ones of normal-phase LC. The addition of polar modifiers such as methanol or ACN increases the mobile phase polarity, allowing working with less polar stationary phases. In this case, despite the absence of water, retention behaviours generally follow the rules of RP LC. Moreover, because identical mobile phases can be used with all stationary phase types, from polar silica to nonpolar C18-bonded silica, the classical domains, RP and normal-phase, are easily brought together in SFC. A unified classification method based on the solvation parameter model is proposed to compare the stationary phase properties used with the same subcritical mobile phase. PMID:18398866

  14. Interidentity memory transfer in dissociative identity disorder.

    PubMed

    Kong, Lauren L; Allen, John J B; Glisky, Elizabeth L

    2008-08-01

    Controversy surrounding dissociative identity disorder (DID) has focused on conflicting findings regarding the validity and nature of interidentity amnesia, illustrating the need for objective methods of examining amnesia that can discriminate between explicit and implicit memory transfer. In the present study, the authors used a cross-modal manipulation designed to mitigate implicit memory effects. Explicit memory transfer between identities was examined in 7 DID participants and 34 matched control participants. After words were presented to one identity auditorily, the authors tested another identity for memory of those words in the visual modality using an exclusion paradigm. Despite self-reported interidentity amnesia, memory for experimental stimuli transferred between identities. DID patients showed no superior ability to compartmentalize information, as would be expected with interidentity amnesia. The cross-modal nature of the test makes it unlikely that memory transfer was implicit. These findings demonstrate that subjective reports of interidentity amnesia are not necessarily corroborated by objective tests of explicit memory transfer. PMID:18729620

  15. Toward a Microprocess Perspective on Adolescent Identity DevelopmentAn Identity Control Theory Approach

    Microsoft Academic Search

    Jennifer L. Kerpelman; Joe F. Pittman; Leanne K. Lamke

    1997-01-01

    An abundance of research has been conducted on identityformation during adolescence, however, very little is bwwn about the processes that actually drive identity development. Furthermore, limited attention has been paid to the active influence of relationships with parents and peers on identity. Recentl, control theory has-been recognized as a useful framewor*from which to examine the microprocesses involved in identityformation. The

  16. Identity in Science Learning: Exploring the Attention Given to Agency and Structure in Studies of Identity

    ERIC Educational Resources Information Center

    Shanahan, Marie-Claire

    2009-01-01

    This paper explores the ways in which the concept of identity has been conceptualised and studied within science education. The Personality and Social Structure Perspective is used to examine the attention paid by researchers to three levels of identity analysis: "personality", "interaction" and "social structure". Tracing the development of…

  17. The Relationships among Caregiver and Adolescent Identity Status, Identity Distress and Psychological Adjustment

    ERIC Educational Resources Information Center

    Wiley, Rachel E.; Berman, Steven L.

    2012-01-01

    The present study addresses the relationships of caregiver identity status on their adolescent children's identity distress and psychological symptom severity among a sample of adolescents (age 12-19) in treatment at a community mental health center (N = 60 caregiver-child dyads). A significant proportion of caregivers (10%) and their adolescent…

  18. Ethnic Identity in Everyday Life: The Influence of Identity Development Status

    ERIC Educational Resources Information Center

    Yip, Tiffany

    2014-01-01

    The current study explores the intersection of ethnic identity development and significance in a sample of 354 diverse adolescents (mean age 14). Adolescents completed surveys five times a day for 1 week. Cluster analyses revealed four identity clusters: diffused, foreclosed, moratorium, and achieved. Achieved adolescents reported the highest…

  19. Implications of Ethnic Identity Exploration and Ethnic Identity Affirmation and Belonging for Intergroup Attitudes among Adolescents

    ERIC Educational Resources Information Center

    Whitehead, Kevin A.; Ainsworth, Andrew T.; Wittig, Michele A.; Gadino, Brandy

    2009-01-01

    The present paper develops and tests two temporal models of the relationships among adolescents' ethnic identity exploration, ethnic identity affirmation and belonging, and attitudes toward their racial/ethnic ingroup and outgroups. Structural equation models for Euro-Americans, Asian Americans, and Latinos revealed that all hypothesized…

  20. Identity Statuses Based on 4 Rather than 2 Identity Dimensions: Extending and Refining Marcia's Paradigm

    ERIC Educational Resources Information Center

    Luyckx, Koen; Goossens, Luc; Soenens, Bart; Beyers, Wim; Vansteenkiste, Maarten

    2005-01-01

    Four identity dimensions (Commitment Making, Identification with Commitment, Exploration in Depth, and Exploration in Breadth) were used to derive identity statuses by means of cluster analysis in a sample of late adolescents. This strategy resulted in both a qualitative refinement and a quantitative extension of Marcia's (1966) model. Five…

  1. Barriers to Ego Identity Status Formation: A Contextual Qualification of Marcia's Identity Status Paradigm.

    ERIC Educational Resources Information Center

    Yoder, Amy E.

    2000-01-01

    Discusses how the concept of barriers can be used to describe the external influences associated with youth ego identity exploration. Presents modifications to Marcia's traditional status structure in order to include environmental elements of identity formation. Explains how this provides a means to further identify and understand important…

  2. Reconceptualising "Identity Slippage": Additional Language Learning and (L2) Identity Development

    ERIC Educational Resources Information Center

    Armour, William

    2009-01-01

    This paper reconsiders the theoretical concept of "identity slippage" by considering a detailed exegesis of three model conversations taught to learners of Japanese as an additional language. To inform my analysis of these conversations and how they contribute to identity slippage, I have used the work of the systemic-functional linguist Jay Lemke…

  3. Making Meanings, Meaning Identity: Hmong Adolescent Perceptions and Use of Language and Style as Identity Symbols

    ERIC Educational Resources Information Center

    Nguyen, Jacqueline; Brown, B. Bradford

    2010-01-01

    Using qualitative interview data gathered from 28 Hmong adolescents, we examined the meaning ascribed to language and style and how language and style behaviors are used to distinguish identity. We found that the participants used language and style to define their own ethnic group membership and cultural identities. Moreover they inferred meaning…

  4. Uncovering Visitor Identity: A Citywide Utilization of the Falk Visitor-Identity Model

    ERIC Educational Resources Information Center

    Trainer, Laureen; Steele-Inama, Marley; Christopher, Amber

    2012-01-01

    In his book, "Identity and the Museum Visitor Experience," John Falk makes the case that by understanding the underlying motivations that drive a visitor, a museum can create an experience that reflects a person's identity and therefore satisfy their motivation for visiting. According to Falk, this level of personal connection increases…

  5. Religious Identity and Cultural Diversity: Exploring the Relationships between Religious Identity, Sexism, Homophobia, and Multicultural Competence

    ERIC Educational Resources Information Center

    Balkin, Richard S.; Schlosser, Lewis Z.; Levitt, Dana Heller

    2009-01-01

    In this article, the authors present the results from a national study investigating the relationships between religious identity, sexism, homophobia, and multicultural competence. Participants were 111 randomly sampled counseling professionals and graduate students. The results indicated a relationship between religious identity and various…

  6. African American Identity Development: A Review of the Literature.

    ERIC Educational Resources Information Center

    Burt, Janeula M.; Halpin, Glennelle

    Beginning from general concepts of identity formation, this review of models of African American identity development proceeds to Marcia's expansion of Erikson's identity model and to Chickering's vector theory. DuBois's concept of "double identity" and Erikson's writings concerning "adaptive coping" in minorities are considered. Cross's…

  7. Agent-based modelling of collective identity: testing constructivist theory

    Microsoft Academic Search

    Ian S. Lustick

    2000-01-01

    Agent-based modeling is an alternative and complementary approach to the study of political identities, including ethnicity and nationalism. By generating many runs with different initial conditions large data sets of virtual histories can be accumulated. This paper presents the ABIR (Agent-Based Identity Repertoire) model which seeks to refine, elaborate, and test constructivist theories of identity and identity change. In this

  8. On polynomial identities in associative and Jordan pairs

    E-print Network

    . The question of whether a theory of general identities of Jordan systems could be developed remained however1 On polynomial identities in associative and Jordan pairs Fernando Montaner 1 Departamento de a polynomial identity if and only if it satisfies a homotope polynomial identity. In the obtention

  9. Mobile Agents and Their Ontology Serving a Federated Identity Platform

    Microsoft Academic Search

    Farah Layouni; Yann Pollet

    2009-01-01

    Like the Web services, federated identity wins gradually businesses. The creation of an infrastructure of federated identity is a viable alternative to current systems.For employees or users, a federated identity leads to a better experience of the Internet, a greater level of customization, more security and a real control of this identity. In this work we will propose choreography for

  10. Efficient selective-ID identity based encryption without random oracles

    Microsoft Academic Search

    Dan Boneh; Xavier Boyen

    2004-01-01

    We construct two e cient Identity Based Encryption (IBE) systems that are selective iden-tity secure without the random oracle model in groups equipped with a bilinear map. Selective identity secure IBE is a slightly weaker security model than the standard security model for IBE. In this model the adversary must commit ahead of time to the identity that it intends

  11. Career and Personal Identity Synthesis in Professional Men and Women.

    ERIC Educational Resources Information Center

    O'Connell, Agnes N.

    Since Erikson first explained identity synthesis for women as a single unitary pattern, identity synthesis for women leading different life styles has been shown to form separate and distinct patterns. These findings suggest that men's identity synthesis may also be more complex than a unitary process. Similarities and differences in identity

  12. Identities of Becoming: Interviewing Asian Deaf Immigrants in America

    ERIC Educational Resources Information Center

    Law, Christine Faith

    2010-01-01

    This study of Asian deaf immigrant interviews focuses on identities of becoming. Identities of becoming are the forming and/or rupturing sense of an individual as new identities emerge and may result from struggles against imposed identities (Hall, 1990). David Moorhead (1995) writes, "people who are deaf--and those who work with them or share…

  13. Fuzzy identity based signature with applications to biometric authentication

    Microsoft Academic Search

    Piyi Yang; Zhenfu Cao; Xiaolei Dong

    2011-01-01

    We introduce a new cryptographic primitive which is the signature analog of fuzzy identity based encryption (FIBE). We call it fuzzy identity based signature (FIBS). It possesses similar error-tolerance property as FIBE that allows a user with the private key for identity ? to decrypt a ciphertext encrypted for identity ?? if and only if ? and ?? are within

  14. Youth identity ownership from a fashion marketing perspective

    Microsoft Academic Search

    Tracy Diane Cassidy; Hannah van Schijndel

    2011-01-01

    Purpose – The purpose of this paper is to investigate the influence that marketing has on teenagers and their development of identity and question the ethical implications of this influence. It aims to explore the extrinsic identity and the intrinsic identity using Erikson's model of identity versus role confusion; to identify passive and active personality types within adolescents; and to

  15. Object Identity A Position Paper for I-WOOOS '93

    E-print Network

    Black, Andrew P.

    Object Identity A Position Paper for I-WOOOS '93 Andrew P. Black Cambridge Research Laboratory-oriented systems. A distinction is drawn between object identity and object identi er the for- mer is an intrinsic of the implementor of an abstraction. 1 Object identity is fundamental I believe that object identity is fundamental

  16. Teacher Educators' Identity: A Review of Literature

    ERIC Educational Resources Information Center

    Izadinia, Mahsa

    2014-01-01

    Research suggests that the development of a teacher educator identity is a central process in becoming a teacher educator. Recently, there has been an increasing interest in the concept of teacher identity. However, teacher educator identity seems to be still under-researched. In this article, a review of literature on teacher educator identity is…

  17. Are Identity Styles Important for Psychological Well-Being?

    ERIC Educational Resources Information Center

    Vleioras, G.; Bosma, H.A.

    2005-01-01

    A successful identity formation is related to being psychologically well (Erikson, 1963). This link seems to be lost in the identity style literature that focuses either on the maturity of the identity styles, or on adaptive and maladaptive behaviour correlates of identity styles. In this study, we address this lost link. We administered the…

  18. Investigating Projective Identity Trajectories for 21st Century Learning

    ERIC Educational Resources Information Center

    Hung, David; Jamaludin, Azilawati; Chen, Der-Thanq

    2010-01-01

    In this article, the authors discuss the importance of studying identity in the context of 21st century learning. Identity is an evolving trajectory that is always in-flux or changing. In a fast changing 21st century, educators are recognizing the significance of identity work, in particular projective identity, as individuals participate in…

  19. Deferring Totality: An Anti-Dialectic Theory of Identity

    ERIC Educational Resources Information Center

    Powell, David M.; Noel, Jana

    2010-01-01

    Using Derrida's concept of deferring totality, Deleuze's concept of the logic of multiplicities, and Butler's "sliding scale," this paper presents an anti-dialectic theory of identity, one that recognizes the permanent deferral of the very concept of identity--a non-synthesized, non-resolved identity--that values the hybridity of identities.…

  20. Memory of myself: Autobiographical memory and identity in Alzheimer's disease

    E-print Network

    Addis, Donna Rose

    Memory of myself: Autobiographical memory and identity in Alzheimer's disease Donna Rose Addis autobiographical memory and identity. To test this we assessed the status of autobiographical memory and identity degree of autobiographical memory impairment was associated with changes in identity. Two tests

  1. An Instrument to Measure Chickering's Vector of Identity.

    ERIC Educational Resources Information Center

    Erwin, T. Dary; Delworth, Ursula

    1980-01-01

    Describes the construction of an instrument to measure identity, primarily based on Chickering's approach, i.e., the Erwin Identity Scale (EIS), designed to measure the three main concepts comprising identity: confidence, sexual identity, and conceptions about body and appearance. (Author)

  2. Racial-Ethnic Identity and Adjustment in Canadian Indigenous Adolescents

    ERIC Educational Resources Information Center

    Gfellner, Barbara M.; Armstrong, Helen D.

    2013-01-01

    This study supported associations between three theoretically driven conceptualizations of racial and ethnic identity (REI; Multigroup Ethnic Identity Measure; Multidimensional Racial Identity Measure; Bicultural Identity Measure) and with adaptive functioning among Canadian indigenous adolescents in middle school to high school. Age differences…

  3. Student Beliefs and Attitudes about Authorial Identity in Academic Writing

    ERIC Educational Resources Information Center

    Pittam, Gail; Elander, James; Lusher, Joanne; Fox, Pauline; Payne, Nicola

    2009-01-01

    Authorial identity is the sense a writer has of themselves as an author and the textual identity they construct in their writing. This article describes two studies exploring psychology students' authorial identity in academic writing. A qualitative focus group study with 19 students showed that authorial identity was largely unfamiliar to…

  4. The effects of multiple identities on psychological well-being.

    PubMed

    Brook, Amara T; Garcia, Julie; Fleming, Monique

    2008-12-01

    The authors propose that the effects of multiple identities on psychological well-being depend on the number of identities, importance of those identities, and relationship between them. Specifically, this model predicts that when identities are highly important, having many versus few identities leads to greater psychological well-being if the identities are in harmony with each other-providing resources and expecting similar behaviors-but leads to lower psychological well-being if the identities conflict with each other-depleting resources and expecting incompatible behaviors. However, when identities are less important, neither the number of identities nor identity harmony should affect well-being. The authors further propose that emotions corresponding to self-perceptions of actual/ought self-discrepancies mediate these effects. Results supported this model. The authors discuss implications of this model for well-being in the context of the increasing social complexity of modern life. PMID:19050334

  5. Odor identity influences tracking of temporally patterned plumes in Drosophila

    PubMed Central

    2011-01-01

    Background Turbulent fluid landscapes impose temporal patterning upon chemical signals, and the dynamical neuronal responses to patterned input vary across the olfactory receptor repertoire in flies, moths, and locusts. Sensory transformations exhibit low pass filtering that ultimately results in perceptual fusion of temporally transient sensory signals. For example, humans perceive a sufficiently fast flickering light as continuous, but the frequency threshold at which this fusion occurs varies with wavelength. Although the summed frequency sensitivity of the fly antenna has been examined to a considerable extent, it is unknown how intermittent odor signals are integrated to influence plume tracking behavior independent of wind cues, and whether temporal fusion for behavioral tracking might vary according to the odor encountered. Results Here we have adopted a virtual reality flight simulator to study the dynamics of plume tracking under different experimental conditions. Flies tethered in a magnetic field actively track continuous (non-intermittent) plumes of vinegar, banana, or ethyl butyrate with equal precision. However, pulsing these plumes at varying frequency reveals that the threshold rate, above which flies track the plume as if it were continuous, is unique for each odorant tested. Thus, the capability of a fly to navigate an intermittent plume depends on the particular odorant being tracked during flight. Finally, we measured antennal field potential responses to an intermittent plume, found that receptor dynamics track the temporal pattern of the odor stimulus and therefore do not limit the observed behavioral temporal fusion limits. Conclusions This study explores the flies' ability to track odor plumes that are temporally intermittent. We were surprised to find that the perceptual critical fusion limit, determined behaviorally, is strongly dependent on odor identity. Antennal field potential recordings indicate that peripheral processing of temporal cues faithfully follow rapid odor transients above the rates that can be resolved behaviorally. These results indicate that (1) higher order circuits create a perceptually continuous signal from an intermittent sensory one, and that (2) this transformation varies with odorant rather than being constrained by sensory-motor integration, thus (3) offering an entry point for examining the mechanisms of rapid olfactory decision making in an ecological context. PMID:21708035

  6. Dissociative identity disorder: a literature review.

    PubMed

    McAllister, M M

    2000-01-01

    This paper presents a review of the literature into dissociative identity disorder. This disorder, previously known as multiple personality disorder, is increasingly diagnosed, in part because of more focused diagnostic tools, but also because people are accessing services to assist with the longterm problems of early child abuse and neglect. Dissociative identity disorder is examined in the literature according to a variety of discourses, each of which suggest different ways of conceptualizing problems and therapeutic approaches. These discourses reviewed include: psychiatry, psychology, corporeality, feminism, social constructivism, anthropology, and postmodernism. The paper concludes with an examination of the nursing literature and suggests opportunities for nursing research into this complex mental health problem. PMID:11022508

  7. Semiclassical Trace Formulas for Noninteracting Identical Particles

    E-print Network

    Jamal Sakhr; Niall D. Whelan

    2002-08-07

    We extend the Gutzwiller trace formula to systems of noninteracting identical particles. The standard relation for isolated orbits does not apply since the energy of each particle is separately conserved causing the periodic orbits to occur in continuous families. The identical nature of the particles also introduces discrete permutational symmetries. We exploit the formalism of Creagh and Littlejohn [Phys. Rev. A 44, 836 (1991)], who have studied semiclassical dynamics in the presence of continuous symmetries, to derive many-body trace formulas for the full and symmetry-reduced densities of states. Numerical studies of the three-particle cardioid billiard are used to explicitly illustrate and test the results of the theory.

  8. The Relation of Ethnic Identity, Racial Identity, and Race-Related Stress among African American College Students

    ERIC Educational Resources Information Center

    Johnson, Samon C.; Arbona, Consuelo

    2006-01-01

    The purpose of this study was to explore to what extent ethnic identity and racial identity are related constructs among African American college students by examining (a) the association of racial identity to ethnic identity and (b) the relative and unique contribution of both constructs to race-related stress. Participants were 140 college…

  9. Id: identity-crisis-body.tex 1355 2011-01-02 14:00:45Z jhh The Identity Crisis

    E-print Network

    Hoepman, Jaap-Henk

    Preprint Id: identity-crisis-body.tex 1355 2011-01-02 14:00:45Z jhh The Identity Crisis Security, Privacy and Usability Issues in Identity Management Gergely Alpár · Jaap-Henk Hoepman · Johanneke Siljee January 2, 2011 Abstract This paper studies the current `identity cri- sis' caused by the substantial

  10. Host identity impacts rhizosphere fungal communities associated with three alpine plant species.

    PubMed

    Becklin, Katie M; Hertweck, Kate L; Jumpponen, Ari

    2012-04-01

    Fungal diversity and composition are still relatively unknown in many ecosystems; however, host identity and environmental conditions are hypothesized to influence fungal community assembly. To test these hypotheses, we characterized the richness, diversity, and composition of rhizosphere fungi colonizing three alpine plant species, Taraxacum ceratophorum, Taraxacum officinale, and Polemonium viscosum. Roots were collected from open meadow and willow understory habitats at treeline on Pennsylvania Mountain, Colorado, USA. Fungal small subunit ribosomal DNA was sequenced using fungal-specific primers, sample-specific DNA tags, and 454 pyrosequencing. We classified operational taxonomic units (OTUs) as arbuscular mycorrhizal (AMF) or non-arbuscular mycorrhizal (non-AMF) fungi and then tested whether habitat or host identity influenced these fungal communities. Approximately 14% of the sequences represented AMF taxa (44 OTUs) with the majority belonging to Glomus groups A and B. Non-AMF sequences represented 186 OTUs belonging to Ascomycota (58%), Basidiomycota (26%), Zygomycota (14%), and Chytridiomycota (2%) phyla. Total AMF and non-AMF richness were similar between habitats but varied among host species. AMF richness and diversity per root sample also varied among host species and were highest in T. ceratophorum compared with T. officinale and P. viscosum. In contrast, non-AMF richness and diversity per root sample were similar among host species except in the willow understory where diversity was reduced in T. officinale. Fungal community composition was influenced by host identity but not habitat. Specifically, T. officinale hosted a different AMF community than T. ceratophorum and P. viscosum while P. viscosum hosted a different non-AMF community than T. ceratophorum and T. officinale. Our results suggest that host identity has a stronger effect on rhizosphere fungi than habitat. Furthermore, although host identity influenced both AMF and non-AMF, this effect was stronger for the mutualistic AMF community. PMID:22038036

  11. Comparison of Linear Microinstability Calculations of Varying Input Realism

    SciTech Connect

    G. Rewoldt

    2003-09-08

    The effect of varying ''input realism'' or varying completeness of the input data for linear microinstability calculations, in particular on the critical value of the ion temperature gradient for the ion temperature gradient mode, is investigated using gyrokinetic and gyrofluid approaches. The calculations show that varying input realism can have a substantial quantitative effect on the results.

  12. Automated Authentication of Current Identity Documents

    Microsoft Academic Search

    Theodore Kuklinski

    Much has been said about the difficulties in screening persons for possible identity fraud or security concerns based upon use of current driver's licenses or passports. The most often reasons given are the lack of standardization of security features and the layout for these documents. This criticism is focused on the inability of even a trained person to recognize valid

  13. Social Identity Theory and Party Identification

    Microsoft Academic Search

    Steven Greene

    2004-01-01

    Given that the group aspect of party identification forms a central, yet largely unexplored element of American partisanship, social identity theory presents a compelling social-psychological theory of group belonging through which to reinterpret the contemporary understanding of partisanship. Copyright (c) 2004 by the Southwestern Social Science Association.

  14. Stress and Identity among Black Males.

    ERIC Educational Resources Information Center

    Stokes, DeVon R.

    Twenty Black American males' reactions to slides depicting interracial climate and/or racial oppression were investigated by recording physiological responses, specifically, galvanic skin potential (GSP) and heart rate (HR). Participants were also given the Myers/Stokes Identity Scale (MSIS) to ascertain their reaction to oppression and, based on…

  15. Understanding New Teachers' Professional Identities through Metaphor

    ERIC Educational Resources Information Center

    Thomas, Lynn; Beauchamp, Catherine

    2011-01-01

    This qualitative study based on semi-structured interviews examines the metaphors new teachers use to describe their professional identities and compares metaphors chosen immediately following graduation with those suggested part way through their first year of teaching. Findings indicate that new teachers make a shift from seeing themselves as…

  16. Language Policy and Language Identity in Indonesia.

    ERIC Educational Resources Information Center

    Lowenberg, Peter H.

    1992-01-01

    Surveys the historical and contemporary contexts in which Bahasa Indonesia has developed and spread, focusing in particular on political, sociocultural, and linguistic forces that have created a fundamental bond between the language and Indonesians' sense of national identity. (70 references) (VWL)

  17. Language Identity and the Asian State: Indonesia.

    ERIC Educational Resources Information Center

    Lowenberg, Peter H.

    1990-01-01

    Explores the widespread acceptance of Bahasa Indonesian as the single national and official language of Indonesia. The discussion focuses on the political, sociocultural, and linguistic forces that have created the strong bond between the language and Indonesians' sense of national identity, and on Indonesia's successful policy of maintaining its…

  18. Indian Languages and Identity in Fiji.

    ERIC Educational Resources Information Center

    Siegel, Jeff

    1992-01-01

    Describes origins of Fiji Indians and their unique language, Fiji Hindi, and discusses this language as a marker of identity in modern dialects brought to Fiji by Indian indentured laborers. The mixed dialect, Fiji Hindi, developed from these original forms of speech, is highlighted, and the role of Hindi and English in the development of Fiji…

  19. Universal Mobility with Global Identity (UMGI) Architecture

    Microsoft Academic Search

    W. F. El-Sadek; Mikhail N. Mikhail

    2009-01-01

    The resultant escalation of cyber attacks and the emerging needs of operators to increase their coverage with a blended service offering, that enhances user mobility, have raised a need for an architecture that can find global digital identities and link them back to users' activities in the mobility universe. In this paper, our focus is to provide an architecture that

  20. Identity Management in Face Recognition Systems

    Microsoft Academic Search

    Massimo Tistarelli; Enrico Grosso

    2008-01-01

    Face recognition is one of the most challenging biometric modalities for personal identification. This is due to a number of factors, including the complexity and variability of the signal captured by a face device. Several issues incur in the management of a face template as user's identity. Data dimensionality reduction, compactness of the representation, uniqueness of the template and ageing

  1. Secure Identity Based Encryption Without Random Oracles

    Microsoft Academic Search

    Dan Boneh; Xavier Boyen

    2004-01-01

    We present a fully secure identity based encryption scheme whose proof of security does not rely on the random oracle heuristic. Security is based on the decisional bilinear Die-Hellman assumption. Previous constructions of this type incurred a large penalty factor in the security reduction from the underlying complexity assumption. The security reduction of the present system is polynomial in all

  2. Identities under seige: The fathers' rights movement

    Microsoft Academic Search

    Carl Edward Bertoia

    1996-01-01

    Fathers' rights groups have been highly visible in Ontario in trying to maintain fatherhood identity after divorce through the exercise of their lobby for joint custody. The fathers' right movement is attempting to influence conceptions of fatherhood as they relate to child custody. This dissertation examines the functions of the fathers' rights movement at two levels--the subjective and the social.

  3. Identities Under Siege: The Fathers' Rights Movement

    Microsoft Academic Search

    Carl Edward Bertoia

    1996-01-01

    Fathers' rights groups have been highly visible in Ontario in trying to maintain fatherhood identity after divorce through the exercise of their lobby for joint custody. The fathers' right movement is attempting to influence conceptions of fatherhood as they relate to child custody. This dissertation examine the functions of the fathers' rights movement at two levels -- the subjective and

  4. Validating the Cross Racial Identity Scale

    ERIC Educational Resources Information Center

    Vandiver, Beverly J.; Cross, William E., Jr.; Worrell, Frank C.; Fhagen-Smith, Peony E.

    2002-01-01

    Validation work on the Cross Racial Identity Scale (CRIS; B. J. Vandiver et al., 2000) is described in 2 studies using African American college students. In Study 1, an exploratory factor analysis supported the presence of 6 CRIS subscales. In Study 2, confirmatory factor analysis provided support for a 2-factor higher order model of the 6 CRIS…

  5. Intimacy and identity status in young adults

    Microsoft Academic Search

    Stephanie A. Tesch; Susan K. Whitbourne

    1982-01-01

    Intimacy status in 48 men and 44 women (aged 21–35 yrs) was investigated in relation to ego-identity status in occupation, religion, politics, and sex role. All Ss were college educated, and most were employed in professional or skilled occupations. An intimacy status measure developed by J. L. Orlofsky et al (1973) was modified for use with adults and expanded by

  6. forest: does the identity of neighbours matter?

    Microsoft Academic Search

    MARÍA URIARTE; RICHARD CONDIT; CHARLES D. CANHAM

    Summary 1 We quantified neighbourhood effects on saphng growth for 60 tree species in the 50-ha plot in Barro Colorado Island, Panama. Additionally, we tested whether target sapling growth responds to taxonomic or functional identity of neighbouring species by comparing four alternate models (that all neighbours have equivalent effects on the target; that conspecific and heterospecific neighbours have distinct effects;

  7. Education: A Forgotten Dimension of Church Identity?

    ERIC Educational Resources Information Center

    Larsson, Rune

    2010-01-01

    In general churches talk a lot about the importance of education. At the same time their educational praxis is often fragmentized. The most crucial factor for this is a weak connection between the Church's identity and its activity. When this link is diffuse, different activities have a tendency to live their own lives. This article examines some…

  8. Engineering in America: Seeking a New Identity.

    ERIC Educational Resources Information Center

    Ferkiss, Victor

    1982-01-01

    Engineering, in spite of all the activity in the fields of energy extraction and space exploration, remains a profession in crisis. What is at stake is not simply the identity of engineering as a profession, but the means by which engineers are educated. (Author)

  9. Identity and School Adjustment: Revisiting the \\

    Microsoft Academic Search

    Margaret Beale Spencer; Elizabeth Noll; Jill Stoltzfus; Vinay Harpalani

    2001-01-01

    It has long been offered as an explanation for the achievement gap between White and African American students, that African American youth would do better if they adopted a Eurocentric cultural values system. Unfortunately, this theory, along with a great amount of the established literature on minority youth identity development, depends on a deficit-oriented perspective to explain the discrepancy between

  10. Toxicology as a nanoscience? – Disciplinary identities reconsidered

    PubMed Central

    Kurath, Monika; Maasen, Sabine

    2006-01-01

    Toxicology is about to establish itself as a leading scientific discipline in addressing potential health effects of materials on the nanosize level. Entering into a cutting-edge field, has an impact on identity-building processes within the involved academic fields. In our study, we analyzed the ways in which the entry into the field of nanosciences impacts on the formation of disciplinary identities. Using the methods of qualitative interviews with particle toxicologists in Germany, Holland, Switzerland and the USA, we could demonstrate that currently, toxicology finds itself in a transitional phase. The development of its disciplinary identity is not yet clear. Nearly all of our interview partners stressed the necessity of repositioning toxicology. However, they each suggested different approaches. While one part is already propagandizing the establishment of a new discipline – 'nanotoxicology'- others are more reserved and are demanding a clear separation of traditional and new research areas. In phases of disciplinary new-orientation, research communities do not act consistently. Rather, they establish diverse options. By expanding its disciplinary boundaries, participating in new research fields, while continuing its previous research, and only vaguely defining its topics, toxicology is feeling its way into the new fields without giving up its present self-conception. However, the toxicological research community is also discussing a new disciplinary identity. Within this, toxicology could develop from an auxiliary into a constitutive position, and take over a basic role in the cognitive, institutional and social framing of the nanosciences. PMID:16646961

  11. Our identity intrOductiOn

    E-print Network

    Bristol, University of

    of identity and the consistency of its application are such that, in the commercial world, brands are given to all stakeholders is broadly consistent: the University is a world-renowned research and educational to the world has to become more sophisticated. What we present to the world has to be more consistent. And why

  12. Autobiographical memory specificity in dissociative identity disorder.

    PubMed

    Huntjens, Rafaële J C; Wessel, Ineke; Hermans, Dirk; van Minnen, Agnes

    2014-05-01

    A lack of adequate access to autobiographical knowledge has been related to psychopathology. More specifically, patients suffering from depression or a history of trauma have been found to be characterized by overgeneral memory, in other words, they show a relative difficulty in retrieving a specific event from memory located in time and place. Previous studies of overgeneral memory have not included patients with dissociative disorders. These patients are interesting to consider, as they are hypothesized to have the ability to selectively compartmentalize information linked to negative emotions. This study examined avoidance and overgeneral memory in patients with dissociative identity disorder (DID; n = 12). The patients completed the autobiographical memory test (AMT). Their performance was compared with control groups of posttraumatic stress disorder (PTSD) patients (n = 26), healthy controls (n = 29), and DID simulators (n = 26). Specifically, we compared the performance of separate identity states in DID hypothesized to diverge in the use of avoidance as a coping strategy to deal with negative affect. No significant differences in memory specificity were found between the separate identities in DID. Irrespective of identity state, DID patients were characterized by a lack of memory specificity, which was similar to the lack of memory specificity found in PTSD patients. The converging results for DID and PTSD patients add empirical evidence for the role of overgeneral memory involved in the maintenance of posttraumatic psychopathology. PMID:24886016

  13. HOMOLOGICAL IDENTITIES FOR DIFFERENTIAL GRADED ALGEBRAS

    E-print Network

    Jørgensen, Peter

    , this is a very simple paper. Our proofs are close in spirit to homological ring theory (see [11], [18], [19], [23HOMOLOGICAL IDENTITIES FOR DIFFERENTIAL GRADED ALGEBRAS ANDERS FRANKILD AND PETER J#31;RGENSEN 0 method works for several important classes of DGAs, among them DG #12;bres of ring homomorphisms, Koszul

  14. Ptolemy's Theorem and Familiar Trigonometric Identities.

    ERIC Educational Resources Information Center

    Bidwell, James K.

    1993-01-01

    Integrates the sum, difference, and multiple angle identities into an examination of Ptolemy's Theorem, which states that the sum of the products of the lengths of the opposite sides of a quadrilateral inscribed in a circle is equal to the product of the lengths of the diagonals. (MDH)

  15. Some combinatorial identities via Fibonacci numbers

    Microsoft Academic Search

    Gwang-yeon Lee; Jin-soo Kim; Seong-hoon Cho

    2003-01-01

    The Pascal matrix and the Stirling matrices of the first kind and the second kind obtained from the Fibonacci matrix are studied, respectively. Also, we obtain combinatorial identities from the matrix representation of the Pascal matrix, the Stirling matrices of the first kind and the second kind and the Fibonacci matrix.

  16. Popular Music, Television, and Generational Identity.

    ERIC Educational Resources Information Center

    Burns, Gary

    Although previous generations have by no means been disloyal to the popular music of their youth, the tenacious attachment of the Baby Boomers to the music of the 1960s seems unprecedented. Three main reasons account for this constantly widening musical reclamation project. First, the Baby Boomers have a clearer sense of generational identity that…

  17. A case study of identity theft

    Microsoft Academic Search

    Stuart F. H Allison

    2003-01-01

    This thesis is an investigation of identity theft, although not a new crime it has recently attracted public concern. This concern has led to both federal and state governments to establish new laws to provide increased protection. Government agencies and the media have warned the public that an individual's social security number and other personal information are the tools that

  18. Community identities as visions for landscape change

    Microsoft Academic Search

    William P. Stewart; Derek Liebert; Kevin W. Larkin

    2004-01-01

    Residents’ felt senses of their community can play substantial roles in determining visions for landscape change. Community identities are often anchored in tangible environments and events of a community, and have the potential to serve as visions for landscape planning processes. Photo-elicitation is applied in this study to connect community-based meanings to environments and events. Twenty participants took photographs of

  19. Identity, Motivation and Autonomy in Language Learning

    ERIC Educational Resources Information Center

    Lamb, Terry; Murray, Garold; Gao, Xuesong

    2011-01-01

    In this volume researchers from Asia, Europe, the Middle East and North and South America employ a variety of theoretical perspectives and methodological approaches in their exploration of the links between identity, motivation, and autonomy in language learning. On a conceptual level the authors explore issues related to agency, metacognition,…

  20. The Educational Politics of Identity and Category.

    ERIC Educational Resources Information Center

    Willinsky, John

    1998-01-01

    Strikes a new educational path through the politics of identity and multiculturalism by arguing for the need to equip young people with an understanding of how culture, race, and nation have been constructed. The paper discusses two multicultural and antiracist initiatives in Canada and examines the beliefs and politics of Simone Weil, Charles…