Reception

Distribution by Scientific Domains
Distribution within Humanities and Social Sciences

Kinds of Reception

  • critical reception
  • signal reception


  • Selected Abstracts


    THE EARLIEST SYRIAC RECEPTION OF DIONYSIUS1

    MODERN THEOLOGY, Issue 4 2008
    ISTVÁN PERCZEL
    This essay examines the earliest Syriac reception of the Corpus Dionysiacum in the first decades of the sixth century. This reception is earlier than the standard Greek reception and moves us closer, I hypothesize, to the original text and context of the CD than do the subsequent Greek edition and commentaries of John of Scythopolis. The principal texts associated with the earliest Syriac reception all betray the influence of "Origenism," which, I argue, reflects the original milieu of the author of the CD. I conclude this essay with some thoughts on how an acknowledgement of the Origenism of the CD complicates our understanding of "orthodoxy" and "heresy" during this period. [source]


    THE RECEPTION OF DIONYSIUS UP TO MAXIMUS THE CONFESSOR

    MODERN THEOLOGY, Issue 4 2008
    ANDREW LOUTH
    There are various odd features about the initial reception of the Corpus Dionysiacum in the sixth century. The reception was, at first, slow and mainly concerned the few, controversial Christological assertions of the CD. The influence of the CD was mediated through a single edition, complete with introduction, variant readings, and scholia, all furnished by John of Scythopolis. The initial reception of the CD in the Syriac world seems very different: independent (at least to begin with) of Scythopolis' edition, and deeply Origenistic. Yet, in other ways, the CD reflects the kind of historical interests we find elsewhere in the sixth century. [source]


    Ecumenical Reception: Its Challenge and Opportunity,by William G. Rusch

    DIALOG, Issue 1 2010
    Minna Hietamäki
    No abstract is available for this article. [source]


    Theology is not Mere Sociology: A Theological Reflection on the Reception of the Christian Religion in Mainland China

    DIALOG, Issue 3 2004
    By Pilgrim W.K.
    Abstract:, Post-Maoist China retains its loyalty to Marxist principles; yet voices are being heard that interpret religion much more positively. Both government spokespersons and Religious Studies scholars measure the value of religion according to its social function. Such a criterion of evaluation fails to take account of what is essential to Christian theology, namely, appeal to divine transcendence. Yet, Christian theology in the tradition of the Lutheran Reformation begins with transcendence and turns toward human responsibility for the world through loving the neighbor. This may mark a common cause between Chinese sociology of religion and Christian commitments to social well-being. [source]


    Spenser's Shepheardes Calender and the Elizabethan Reception of Chaucer

    ENGLISH LITERARY RENAISSANCE, Issue 1 2005
    Glenn A. Steinberg
    First page of article [source]


    Farinelli's Progress to Albion: The Recruitment and Reception of Opera's ,Blazing Star'

    JOURNAL FOR EIGHTEENTH-CENTURY STUDIES, Issue 3 2005
    THOMAS McGEARY
    First page of article [source]


    The role of electronic preprints in chemical communication: Analysis of citation, usage, and acceptance in the journal literature

    JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 5 2003
    Cecelia Brown
    This study characterizes the usage and acceptance of electronic preprints (e-prints) in the literature of chemistry. Survey of authors of e-prints appearing in the Chemistry Preprint Server (CPS) at http://preprints.chemweb.com indicates use of the CPS as a convenient vehicle for dissemination of research findings and for receipt of feedback before submitting to a peer-reviewed journal. Reception of CPS e-prints by editors of top chemistry journals is very poor. Only 6% of editors responding allow publication of articles that have previously appeared as e-prints. Concerns focus on the lack of peer review and the uncertain permanence of e-print storage. Consequently, it was not surprising to discover that citation analysis yielded no citations to CPS e-prints in the traditional literature of chemistry. Yet data collected and posted by the CPS indicates that the e-prints are valued, read, and discussed to a notable extent within the chemistry community. Thirty-two percent of the most highly rated, viewed, and discussed e-prints eventually appear in the journal literature, indicating the validity of the work submitted to the CPS. This investigation illustrates the ambivalence with which editors and authors view the CPS, but also gives an early sense of the potential free and rapid information dissemination, coupled with open, uninhibited discussion and evaluation, has to expand, enrich, and vitalize the scholarly discourse of chemical scientists. [source]


    From Tyrannosaurus to Pokemon: autonomy in the teaching of writing

    LITERACY, Issue 1 2001
    Lynda Graham
    This article is about action research into the teaching of writing. In 1999,2000 primary teachers in Croydon took part in a project to raise standards in writing. Teachers undertook case studies of representative children, and made considered changes to their teaching of writing in the light of their observations of these children. The article focuses on case studies from four of these classes. (Reception, Y1, Y3 and Y6.) The four classes were chosen because in them children made most progress as writers during the project year. Brief outlines are made of case studies from these classes, followed by descriptions of the main changes to teaching in these classrooms. In conclusion, an analysis is made of common patterns of teaching across the four classes. These changes include the opportunity for children to: write about things that mattered to them; write as experts; hear their writing read aloud; and experience genuine response to this writing. In addition, it was also found that boys made most progress when given the opportunity to write in the company of other boys. [source]


    A Twenty-First-Century Reception for Diversity in the Public Sector: A Case Study

    PUBLIC ADMINISTRATION REVIEW, Issue 5 2000
    Vidu Soni
    In the past decade, most large public-sector organizations have adopted a philosophy of valuing workforce diversity and have implemented a variety of initiatives for effectively utilizing and managing the current and projected workforce diversity. However, whether organizational members subscribe to the diversity value or support the employer-sponsored diversity-management initiatives still largely remains unanswered. This article discusses the influence of employee race/ethnicity and gender identity, associated stereotyping and prejudice, and the nature of interpersonal relations on acceptance of diversity and support for diversity-management initiatives. The hypothesis that these three variables have a significant influence on receptivity to diversity in the workplace was empirically tested in a case study of diversity-management practices of a federal agency, and the study findings are reported in this article. [source]


    Anatomic Geometry of Sound Transmission and Reception in Cuvier's Beaked Whale (Ziphius cavirostris)

    THE ANATOMICAL RECORD : ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY, Issue 4 2008
    Ted W. Cranford
    Abstract This study uses remote imaging technology to quantify, compare, and contrast the cephalic anatomy between a neonate female and a young adult male Cuvier's beaked whale. Primary results reveal details of anatomic geometry with implications for acoustic function and diving. Specifically, we describe the juxtaposition of the large pterygoid sinuses, a fibrous venous plexus, and a lipid-rich pathway that connects the acoustic environment to the bony ear complex. We surmise that the large pterygoid air sinuses are essential adaptations for maintaining acoustic isolation and auditory acuity of the ears at depth. In the adult male, an acoustic waveguide lined with pachyosteosclerotic bones is apparently part of a novel transmission pathway for outgoing biosonar signals. Substitution of dense tissue boundaries where we normally find air sacs in delphinoids appears to be a recurring theme in deep-diving beaked whales and sperm whales. The anatomic configuration of the adult male Ziphius forehead resembles an upside-down sperm whale nose and may be its functional equivalent, but the homologous relationships between forehead structures are equivocal. Anat Rec, 291:353,378, 2008. © 2008 Wiley-Liss, Inc. [source]


    After Innocence: Gillian Rose's Reception and Gift of Faith.

    THE HEYTHROP JOURNAL, Issue 4 2010
    By Andrew Shanks, Transcendence: On the Unfinished Project of Gillian Rose.
    No abstract is available for this article. [source]


    "Making Arrows Out of Pointed Words": Critical Reception, Taste Publics, and Rush

    THE JOURNAL OF AMERICAN CULTURE, Issue 3-4 2002
    Christopher J. McDonald
    First page of article [source]


    Development in infants with autism spectrum disorders: a prospective study

    THE JOURNAL OF CHILD PSYCHOLOGY AND PSYCHIATRY AND ALLIED DISCIPLINES, Issue 6 2006
    Rebecca Landa
    Background:, Autism is rarely diagnosed before three years of age despite evidence suggesting prenatal abnormalities in neurobiological processes. Little is known about when or how development becomes disrupted in the first two years of life in autism. Such information is needed to facilitate early detection and early intervention. Methods:, This prospective study of autism spectrum disorders (ASD) examined development using the Mullen Scales of Early Learning (MSEL) in 87 infants tested at target ages 6, 14, and 24 months. Participants came from infants at high risk (siblings of children with autism) and low risk (no family history of autism) groups. Based on language test scores, Autism Diagnostic Observation Schedule, and clinical judgment at 24 months of age, participants were categorized as: unaffected, ASD, or language delayed (LD). Longitudinal linear regression and ANOVA models were applied to MSEL raw scores, and estimates were compared between the three diagnostic groups. Results:, No statistically significant group differences were detected at 6 months. By 14 months of age, the ASD group performed significantly worse than the unaffected group on all scales except Visual Reception. By 24 months of age, the ASD group performed significantly worse than the unaffected group in all domains, and worse than the language delayed group in Gross Motor, Fine Motor, and Receptive Language. The developmental trajectory of the ASD group was slower than the other groups', and showed a significant decrease in development between the first and second birthdays. Conclusions:, Variations from typical and language delayed development are detectable in many children with ASD using a measure of general development by 24 months of age. Unusual slowing in performance occurred between 14 and 24 months of age in ASD. [source]


    Cultural Models and Metaphors for Marriage: An Analysis of Discourse at Japanese Wedding Receptions

    ETHOS, Issue 3 2004
    CYNTHIA DICKEL DUNN
    This article uses metaphor analysis to delineate the cultural model of marriage expressed in speeches at Japanese wedding receptions. Wedding speakers used three main metaphors for talking about marriage: marriage as a joint creation, marriage as a physical union, and marriage as a journey. These metaphors were used to express a number of themes including the concepts that marriage is a new beginning, requires joint effort and cooperation, is ideally a lasting union, and involves love, trust, and emotional unity. A comparison with earlier studies of U.S. discourse reveals that people in Japan and the United States share many of the same metaphors and ideas about marriage, but differ in their understanding of the "work" required in marriage. Whereas people in the United States talk of the need to "work on" the relationship, particularly through open communication of needs and emotions, speakers at Japanese weddings emphasized the couple "working together" and emotional unity was presented as a part of that cooperation rather than an end in itself. [source]


    The origins and present status of the radio wave controversy in NMR

    CONCEPTS IN MAGNETIC RESONANCE, Issue 4 2009
    D.I. Hoult
    Abstract The origins, history, and present status of the controversy surrounding a quantum description of the NMR signal as being due to radio waves are traced. With the Principle of Relativity and Coulomb's Law as formal starting points and the minimum of mathematics needed for understanding, the derivation of a classical electromagnetic theory of signal reception is first given. The agreement between that classical theory and a recent NMR experiment is then presented, leading to proof that, except for the highest field imaging experiments, there is no significant contribution of radio waves to the signal. Attention is drawn to the very different properties of the near and far energy, momenta, and fields inherent in the derivation. The role of the Correspondence Principle in formulating a quantum description is then emphasized and it is shown that the standard NMR interpretation of Dicke's theory of coherent spontaneous emission,that the latter is responsible for the NMR signal,cannot be correct. Finally, the author speculates on some of the intriguing relationships found in the classical electrodynamics of NMR signal reception and attempts to relate them to a common quantum electrodynamic precept of near field interaction: that the free induction decay voltage present at the terminals of an open-circuit receiving coil is based on an exchange of virtual photons between the nuclei in a sample and the free electrons in a receiving coil. © 2009 Crown in the right of Canada. Concepts Magn Reson Part A 34A: 193,216, 2009. [source]


    COSMOPOLITANISM, REMEDIATION, AND THE GHOST WORLD OF BOLLYWOOD

    CULTURAL ANTHROPOLOGY, Issue 1 2010
    DAVID NOVAK
    ABSTRACT This essay considers the process of remediation in two North American reproductions of the song-and-dance sequence Jaan Pehechaan Ho from the 1965 "Bollywood" film Gumnaam. The song was used in the opening sequence of the 2001 U.S. independent film Ghost World as a familiar-but-strange object of ironic bewilderment and fantasy for its alienated teenage protagonist Enid. But a decade before Ghost World's release, Jaan Pehechaan Ho had already become the lynchpin of a complex debate about cultural appropriation and multicultural identity for an "alternative" audience in the United States. I illustrate this through an ethnographic analysis of a 1994 videotape of the Heavenly Ten Stems, an experimental rock band in San Francisco, whose performance of the song was disrupted by a group of activists who perceived their reproduction as a mockery. How is Bollywood film song, often itself a kitschy send-up of American popular culture, remediated differently for different projects of reception? How do these cycles of appropriation create overlapping conditions for new identities,whether national, diasporic, or "alternative",within the context of transcultural media consumption? In drawing out the "ghost world" of Bollywood's juxtapositions, I argue that the process of remediation produces more than just new forms and meanings of media, but is constitutive of the cosmopolitan subjects formed in its global circulations. [source]


    Recovering True Selves in the Electro-Spiritual Field of Universal Love

    CULTURAL ANTHROPOLOGY, Issue 2 2004
    Nickola Pazderic
    ABSTRACT In Taiwan, the quasi-religious practice of Heqi reveals a complex relationship between the neoliberal demand for success; conceptions of energy and love; technologies of audio transmission; reception, and recording; and the production of modern selves. A transnational coalescence of psychoanalysis and Heqi as both theory and practice produces modern, properly cultured subjects fully in tune with the prevailing demands of global capitalism. Furthermore, these therapies and their explanatory discourses reflect, as much as they describe, globally salient audio technologies (such as radio). [source]


    Africa, Tropical Commodity Policy and the WTO Doha Round

    DEVELOPMENT POLICY REVIEW, Issue 1 2007
    Peter Gibbon
    Despite their critical importance for Africa, and African efforts to the contrary, tropical commodity problems have been touched on only marginally in the WTO Doha Round. This article examines African proposals in the area, their reception in the WTO, and their relation to the current international policy debate. It goes on to provide an explanation, in political economy terms, for their relative success and failure, before concluding by discussing the prospects for finding any international forum where the issues raised by African countries could receive meaningful consideration. [source]


    Characterization of the plasticity-related gene, Arc, in the frog brain

    DEVELOPMENTAL NEUROBIOLOGY, Issue 12 2010
    Lisa A. Mangiamele
    Abstract In mammals, expression of the immediate early gene Arc/Arg3.1 in the brain is induced by exposure to novel environments, reception of sensory stimuli, and production of learned behaviors, suggesting a potentially important role in neural and behavioral plasticity. To date, Arc has only been characterized in a few species of mammals and birds, which limits our ability to understand its role in modifying behavior. To begin to address this gap, we identified Arc in two frog species, Xenopus tropicalis and Physalaemus pustulosus, and characterized its expression in the brain of P. pustulosus. We found that the predicted protein for frog Arc shared 60% sequence similarity with Arc in other vertebrates, and we observed high Arc expression in the forebrain, but not the midbrain or hindbrain, of female túngara frogs sacrificed at breeding ponds. We also examined the time-course of Arc induction in the medial pallium, the homologue of the mammalian hippocampus, in response to a recording of a P. pustulosus mating chorus and found that accumulation of Arc mRNA peaked 0.75 h following stimulus onset. We found that the mating chorus also induced Arc expression in the lateral and ventral pallia and the medial septum, but not in the striatum, hypothalamus, or auditory midbrain. Finally, we examined acoustically induced Arc expression in response to different types of mating calls and found that Arc expression levels in the pallium and septum did not vary with the biological relevance or acoustic complexity of the signal. © 2010 Wiley Periodicals, Inc. Develop Neurobiol 70: 813,825, 2010 [source]


    An evaluation of a heroin overdose prevention and education campaign

    DRUG AND ALCOHOL REVIEW, Issue 1 2010
    DANIELLE HORYNIAK
    Abstract Introduction and Aims. Following detection of an upward trend in the frequency of fatal heroin overdoses in Victoria between 2001 and 2003, Victoria's Department of Human Services planned a campaign aimed at increasing injecting drug users' (IDU) awareness of overdose risks and prevention strategies. Stickers, wallet cards and posters featuring five key messages were distributed via needle and syringe programs (NSP) and other drug and alcohol services between November 2005 and April 2006. An evaluation of the campaign was commissioned to be conducted in late 2006. Design and Methods. The evaluation consisted of analysis of three independent data sets,,quantitative data collected from IDU during the campaign period (n = 855 at baseline; and a range of 146,656 at follow up); qualitative interviews with IDU who were NSP clients during the campaign period (n = 16) and qualitative interviews with NSP staff and other key stakeholders (n = 9). Results. While key experts felt that the campaign messages had engendered lasting impact for at least some IDU, these positive impressions were not borne out by the NSP client data, with less than one quarter of all campaign messages being mentioned by a significantly higher proportion of clients during the post-campaign period compared with baseline. Key experts perceived the greatest weakness of the campaign to be the delay between issue identification and the introduction of campaign materials. Discussion and Conclusions. While IDU are generally responsive to health promotion campaigns, future initiatives in this domain should be designed and implemented rapidly and in ways that are sufficiently flexible to cope with shifts in drug markets which could influence the reception of key messages.[Horyniak D, Higgs P, Lewis J, Winter R, Dietze P, Aitken C. An evaluation of a heroin overdose prevention and education campaign. Drug Alcohol Rev 2009] [source]


    Talking about history in eleventh-century England: the Encomium Emmae Reginae and the court of Harthacnut

    EARLY MEDIEVAL EUROPE, Issue 4 2005
    Elizabeth M. Tyler
    The Encomium Emmae Reginae was written in the early 1040s to support the interests of Queen Emma amidst the factionalism which marked the end of the period of Danish rule in England. This article argues that the Encomium was shaped by its production and reception in the distinctively multilingual environment of King Harthacnut's court. Attention to Emma's key role in negotiating the interaction of the English, Norse, French, Flemish and Latin literary and linguistic cultures which were present in the Anglo-Danish court reveals growing lay claims to Latin literary culture in eleventh-century England. [source]


    Experimental verification of a wireless sensing and control system for structural control using MR dampers

    EARTHQUAKE ENGINEERING AND STRUCTURAL DYNAMICS, Issue 10 2007
    Chin-Hsiung Loh
    Abstract The performance aspects of a wireless ,active' sensor, including the reliability of the wireless communication channel for real-time data delivery and its application to feedback structural control, are explored in this study. First, the control of magnetorheological (MR) dampers using wireless sensors is examined. Second, the application of the MR-damper to actively control a half-scale three-storey steel building excited at its base by shaking table is studied using a wireless control system assembled from wireless active sensors. With an MR damper installed on each floor (three dampers total), structural responses during seismic excitation are measured by the system's wireless active sensors and wirelessly communicated to each other; upon receipt of response data, the wireless sensor interfaced to each MR damper calculates a desired control action using an LQG controller implemented in the wireless sensor's computational core. In this system, the wireless active sensor is responsible for the reception of response data, determination of optimal control forces, and the issuing of command signals to the MR damper. Various control solutions are formulated in this study and embedded in the wireless control system including centralized and decentralized control algorithms. Copyright © 2007 John Wiley & Sons, Ltd. [source]


    Defining Economics: The Long Road to Acceptance of the Robbins Definition

    ECONOMICA, Issue 2009
    ROGER E. BACKHOUSE
    Robbins' Essay gave economics a definition that came to dominate the professional literature. This definition laid a foundation that could be seen as justifying both the narrowing of economic theory to the theory of constrained maximization or rational choice and economists' ventures into other social science fields. Though often presented as self-evidently correct, both the definition itself and the developments that it has been used to support were keenly contested. This paper traces the reception, diffusion and contesting of the Robbins definition, arguing that this process took around three decades and that even then there was still significant dissent. [source]


    Pro-War and Prothalamion: Queen, Colony, and Somatic Metaphor Among Spenser's "Knights of the Maidenhead"

    ENGLISH LITERARY RENAISSANCE, Issue 2 2007
    Benjamin P. Myers
    This essay charts the points of contact - or more precisely the "overlay" - between Spenser's gender ethics, his experience of the Irish landscape, and his singular reception of the Petrarchan literary heritage. Spenser portrays the Queen as Petrarchan lover against the background of a male-driven conquest of the feminized landscape, a juxtaposition in which the love-frowardness of the Petrarchan lady is translated into the frowardness of a queen hesitant to take the expensive and potentially devastating steps necessary for the expansion of her empire. Spenser uses the traditional metaphor of the land as female body to link colonial approaches to land with staunchly Protestant conceptions of marriage, working a double sense of "husbandry" to criticize the Queen for her restraint in supporting the Irish project. In an act of colonial poetic production unmatched in its era, the Faerie Queene presents a system of similitudes centering on the female body, the land, and literary history in which each term is a means of morally interpreting the remaining two. To grasp the full weight behind the colonial politics and the gender politics of the Faerie Queene one must attempt to read these three terms, often interpreted independently, as a carefully constructed nexus of meaning. To do so is to read the poem reading itself. [source]


    Advances in insect biotechnology for human welfare

    ENTOMOLOGICAL RESEARCH, Issue 2008
    Thomas A. MILLER
    Abstract Biotechnology is the latest scientific breakthrough in the history of agriculture. Yet despite the promise of developing new tools for pest and disease control, transgenic organisms have encountered a mixed reception by the lay and scientific public alike. Yields are unable to keep pace with rising costs resulting in a decline in traditional farming. Switching to a new organic growing paradigm is occurring in Korea and the United States today. These new approaches ignore traditional tools that were responsible for the increased yields that support the current affluence and allowed us to protect crops while buying time to find more ecologically-friendly methods. The perception that we understand crop diseases and pests is false and those making this assumption risk destabilizing global food production. There are new pests and diseases that are very difficult to control without these traditional non-organic methods. Invasive species continue to arrive at high rates adding to the burden of farming. Global climate change is already causing changes in the pest and disease complexes and is forcing the entomologist and plant pathologist to make drastic changes to adjust to them. [source]


    Drug use and perceived treatment need among newly sentenced prisoners in England and Wales

    ADDICTION, Issue 2 2009
    Duncan Stewart
    ABSTRACT Aims To investigate pre-custody levels of drug use among newly sentenced prisoners and factors associated with perceived drug treatment need. Design, setting and participants A sample of 1457 prisoners was recruited to a general purpose longitudinal survey of convicted prisoners starting a new sentence. Measurements Data were collected by structured interviews on reception to prison. Measures were taken of illicit drug use, drug treatment history, current treatment needs, psychological health and a range of social problems. Findings Life-time use of heroin, crack cocaine, cocaine powder, amphetamines or cannabis was reported by 79% of prisoners. Cannabis was the drug reported most commonly, but approximately a third had used heroin or crack cocaine during the year before custody. Nearly half of recent drug users reported wanting help or support with a drug problem during their sentence. Dependence on heroin and cocaine, previous drug treatment, employment, accommodation and psychological health problems were all associated positively with perceived treatment need. Conclusions The prevalence of pre-custody drug use among this sample of newly sentenced prisoners was high. Because treatment need was associated with a range of drug, health and social factors, assessment and referral to appropriate interventions should occur as soon as possible on reception. Treatment should be coordinated with other services and support. [source]


    Elevated organochlorines in the brain,hypothalamic,pituitary complex of intersexual shovelnose sturgeon

    ENVIRONMENTAL TOXICOLOGY & CHEMISTRY, Issue 7 2006
    Brian T. Koch
    Abstract Organochlorine compounds (OCs), including polychlorinated biphenyls and organochlorine pesticides, were used on lands adjacent to the Middle Mississippi River (MMR; USA) from 1930 through 1988, and they continue to occur in MMR fish. These compounds are estrogenic and/or antiandrogenic, and they alter hormone production and reception within the brain and gonads of male fish, resulting in intersexuality and/or suppressed gonadal development. To assess how OCs affect reproduction of MMR fish, we quantified OC accumulation, intersexuality, and gonadal development in male shovelnose sturgeon (Scaphirhynchus platorynchus) throughout the MMR during the spring of 2003. Gonads were observed for intersexual characteristics, weighed to calculate the gonadosomatic index (GSI), and examined histologically. Tissue accumulation of OCs was quantified in gonads, brain,hypothalamic,pituitary (BHP) complex, and fillets. Four of 48 mature males were identified macroscopically as intersexuals, and a fifth was found through histology (a 10.4% incidence). Intersexuals accumulated higher concentrations of OCs in the BHP complex compared with those of mature males. In addition, GSI and OC accumulation within the BHP complex, gonads, and fillets of mature males were negatively related. Exposure to OCs before or during sexual differentiation likely induces intersexuality in MMR shovelnose sturgeon, and exposure throughout gonadal maturation inhibits gonadal development. [source]


    Single olfactory sensory neurons simultaneously integrate the components of an odour mixture

    EUROPEAN JOURNAL OF NEUROSCIENCE, Issue 10 2003
    Patricia Duchamp-Viret
    Abstract Most odours are complex mixtures. However, the capacities of olfactory sensory neurons (OSNs) to process complex odour stimuli have never been explored in air-breathing vertebrates. To face this issue, the present study compares the electrical responses of single OSNs to two odour molecules, delivered singly and mixed together, in rats in vivo. This work is the first aimed at demonstrating that single OSNs simultaneously integrate several chemical signals and which, furthermore, attempts to describe such processes for the whole concentration range over which single OSNs can work. The results stress that complex interactions occur between components in odour mixtures and that OSN responses to such mixtures are not simply predictable from the responses to their components. Three types of interactions are described. They are termed suppression, hypoadditivity and synergy, in accord with psychophysical terminology. This allows us to draw links between peripheral odour reception and central odour coding. Indeed, events occurring in single OSNs may account for the dominating or even the masking effects of odour molecules in complex mixtures, i.e. for the prevailing action of a minor component in the final qualitative perception of a mixture. We conclude that our observations with binary mixtures anticipate the complexity of processes which may rise at the level of a single OSN in physiological conditions. Following this hypothesis, a natural odour would induce a multi-chemical integration at the level of single OSNs which may result in refining their individual odour-coding properties, leading them to play a crucial role in the final performance of the olfactory system. [source]


    Information rate bounds in common-mode aided wireline communications

    EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS, Issue 5 2006
    Thomas Magesacher
    Communication over the copper twisted-pair channel is performed by transmitting and receiving differential-mode (DM) signals. In this paper, we extend the conventional DM receiver scheme by incorporating the common-mode (CM) signal, which is strongly correlated with the DM signal and can be extracted at the end of every wire pair. The wireline channel, including the CM receive signal, is modelled as a Gaussian vector (multiple-input multiple-output) channel with memory and an arbitrary number of disturbers that introduce interference which can be correlated both temporally and spatially. We investigate the potential of CM-aided reception in terms of information rate for single-user digital subscriber line systems (xDSL) operating on a single pair. Numerical results of information rate calculations using measured channel data are presented. The achievable information rate of the twisted-pair channel when incorporating the CM signal in practically relevant example scenarios can exceed the information rate of the conventional DM channel by a factor of up to two. Copyright © 2005 AEIT. [source]


    On frequency domain equalization for MC-CDMA in Nakagami fading channels,

    EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS, Issue 1 2004
    Mohammed Abdel-Hafez
    In this letter, we evaluate the performance of multicarrier code division multiple access (MC-CDMA) in terms of average bit error probability (BEP) in Nakagami fading channels. The results are applicable to MC-CDMA systems employing coherent demodulation with maximal-ratio combining (MRC) or equal gain combining (EGC) reception. The effects of fading parameters and number of users are presented. The accuracy of the proposed analysis is demonstrated by computer simulations. The BEP performance of the EGC receiver in the uplink is highly influenced by the fading parameter compared with that of the MRC receiver. The EGC receiver outperforms the MRC receiver in the downlink, but the MRC receiver gives almost the same performance as the EGC in the uplink. Copyright © 2004 AEI [source]