Mirror

Distribution by Scientific Domains
Distribution within Physics and Astronomy

Kinds of Mirror

  • deformable mirror

  • Terms modified by Mirror

  • mirror image
  • mirror neuron
  • mirror neuron system
  • mirror plane
  • mirror symmetry

  • Selected Abstracts


    RECOVERY FROM DEPRESSION: AUSTRALIA IN AN ARGENTINE MIRROR 1895,1913

    AUSTRALIAN ECONOMIC HISTORY REVIEW, Issue 3 2006
    Article first published online: 20 OCT 200, Ian W. McLean
    Argentina; Australia; debt crisis; recovery policies The recovery from the 1890s depression in Australia was prolonged, and economic growth from 1895 to 1913 was below that in the comparable settler economies of Argentina and Canada. Why? Australia's hesitant initial recovery is typically attributed to the imbalances in the economy resulting from the preceding boom, and its further delay to severe drought. Drawing on Argentine experience, it is suggested that additional factors need to be considered. Unlike Argentina, the unwillingness or inability of Australian governments to reschedule foreign debt or devalue the exchange rate exacerbated the slump. And the era of low-cost pioneer farming ended earlier than in Argentina (or Canada). [source]


    THE ,FRYING PANS' OF THE EARLY BRONZE AGE AEGEAN: AN EXPERIMENTAL APPROACH TO THEIR POSSIBLE USE AS LIQUID MIRRORS,

    ARCHAEOMETRY, Issue 4 2009
    D. A. PAPATHANASSOGLOU
    The so-called ,frying pans' are peculiar vessels, most of them made of terracotta, flat and shallow, usually decorated on the outside part and dated to the Early Bronze Age. They were unearthed mostly in the Cyclades, in Crete and on the Helladic mainland. There are also a few artefacts made of stone and of bronze, from the Cyclades and Asia Minor, respectively. The intended purpose of these objects is disputed. Several interpretations exist for their function, the earliest one being that of liquid mirror vessels. We investigated the mirror hypothesis experimentally, by testing trays with attributes similar to those of the original ,frying pans', filled with a series of liquids familiar to the people of the time and the place where those vessels were made. The criterion employed was the contrast of mirror images. We conclude that, provided that some minimal prerequisites are met, the ,frying pans' are quite appropriate as liquid mirror vessels. [source]


    A Mirror for Magistrates and the Politics of the English Reformation , By Scott C. Lucas

    HISTORY, Issue 320 2010
    KIMBERLEY J. HACKETT
    No abstract is available for this article. [source]


    As in a Mirror.

    INTERNATIONAL JOURNAL OF SYSTEMATIC THEOLOGY, Issue 4 2006
    John Calvin, Karl Barth on Knowing God.
    No abstract is available for this article. [source]


    Mirror, mirror on the wall, who is the prettiest of all?

    JOURNAL OF COSMETIC DERMATOLOGY, Issue 3 2002
    Lawrence Charles Parish
    [source]


    An Eleventh-Century View of Chinese Ethnic Policy: Sima Guang on the Fall of Western Jin

    JOURNAL OF HISTORICAL SOCIOLOGY, Issue 3 2007
    MARK STRANGE
    It fell to these barbarian usurpers in 317. Throughout the eleventh century, the Northern Song dynasty (960,1127) felt its sovereignty endangered by foreign states to the north. Parallels between the ethnic policies of Western Jin and Northern Song emerge from the representation of Western Jin's dynastic fortunes that the eleventh-century statesman and historian Sima Guang (1019,1086) offered in his famous chronicle, Zizhi tongjian (A Comprehensive Mirror to Aid Government). The present article takes that text as its focus. It examines the textual and ideological spin that Sima Guang gave his account of fourth-century ethnic tensions. It argues that his characterisation of the barbarians that threatened Western Jin resonated with his response to eleventh-century foreign relations. And it shows that for Sima Guang the integrity of the Chinese imperial state, and even Chinese identity, was at stake. [source]


    In the Mirror: The Legitimation Work of Globalization

    LAW & SOCIAL INQUIRY, Issue 4 2002
    Susan Bibler Coutin
    This essay examines the legitimation work of globalization by bringing into dialogue the authors' research on immigration, finance, and intercountryadoption. It is concerned with the practices that produce, define, and preclude both movement and connection, such as "naturalizing" some border crossings while criminalizing others; denying the histories and policies that allow some parents to "choose" babies while others must abandon them; and challenging the practices through which small states tweak transnational financial systems while allowing multinational corporations privileges denied small states. Legitimation work (re)configures jurisdictionality, transparency, and sovereignty,the constructs on which debates over globalization's consequences hinge. Examining how these constructs order, include, and exclude persons, goods, and practices sheds light on the boundaries, slippages, and connections between the legitimate and the illegitimate within global processes. [source]


    16×16 Mirror type optical switch with integrated fiber alignment and steady switching state

    MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 12 2008
    Qinghua H. Chen
    Abstract This paper reports a micro electro mechanical system (MEMS) 16×16 free space optical switch based on high-reflectivity mirrors. The mirror monolithically integrated with the fiber grooves can enlarge its rotation angles up to 90°, and keep this as a steady state to steer the optical signal. The reflectivity of the mirror is measured to be 93.1 , 96.3%. The smallest fiber-mirror-fiber insertion loss is 2.1 dB by utilizing optiFocusTM collimating lensed fibers. Moreover, only about ±0.01 dB oscillating amplitude of insertion loss is provoked after the device is tested for 15 min for 5 , 90 Hz in the vertical vibration amplitude of 3 mm. In addition, excellent antifatigue performance of the mirror, which can endure more than 109 cycles of actuation, has been proven. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 3012,3016, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23879 [source]


    Mirror writing in task specific dystonia: A case report

    MOVEMENT DISORDERS, Issue 12 2007
    Pramod K. Pal
    [source]


    Setting the Pace: The Role of Speeds in Elliott Carter's A Mirror on Which to Dwell

    MUSIC ANALYSIS, Issue 3 2003
    Brenda Ravenscroft
    First page of article [source]


    Who's in the Mirror?

    CHILD DEVELOPMENT, Issue 1 2002
    Nine-Month-Old Infants, Other Discrimination in Specular Images by Four-
    This research investigated the early determinants of self-other discrimination in infancy. Ninety-six 4- and 9-month-old infants were placed facing a live image either of themselves or of another person (experimenter) mimicking them. The specular image was either contingent (on-line), or contingent with a 2-s delay. After a first 1-min presentation, the video image of either the self or the other was suddenly frozen for 1 min (still-face episode). This was followed by a last minute of live presentation. From 4 months of age, infants appeared to perceive and act differentially when facing the specular image of themselves or the mimicking other. In general, infants tended to smile more, look more, and have more protracted first-look duration toward the mimicking other compared with the self. Developmentally, 9-month-olds showed markedly more social initiatives toward the mimicking other compared with the self during the still-face episode. In all, these results indicate that infants develop self-other discrimination in specular images long before mirror self-recognition, which is typically reported by the second year. Discrimination of the self from other is interpreted as a precursory ability and a perceptual foundation of later conceptual self development. [source]


    The Play of Mirrors: The Representation of Self Mirrored in the Other

    AMERICAN ETHNOLOGIST, Issue 2 2000
    Alcida Rita Ramos
    The Play of Mirrors: The Representation of Self Mirrored in the Other. Sylvia Caiuby Novaes. Austin: University of Texas Press, 1997. xx. 177 pp., figures, notes, bibliography, index. [source]


    Surveying Recent Literature on the Arabic and Persian Mirrors for Princes Genre

    HISTORY COMPASS (ELECTRONIC), Issue 2 2009
    L. Marlow
    The study of the medieval Arabic and Persian ,mirror for princes' literatures in many respects resembles that of the similarly abundant literatures produced in Byzantium and the Latin West. In earlier scholarship, the predominant approach was that of the history of ideas, and scholars tended to focus on depictions of the ideal ruler and other aspects of the ,political thought' expressed in the mirror literatures. A secondary area of interest concerned textual transmission within and across these literatures. More recent scholarship has continued to develop and refine these established approaches, and has also developed new directions of research. Notably, several scholars have explored the Sitz im Leben of individual mirrors, and have studied their meaning and significance in the historical settings in and for which they were composed. Certain recent publications have highlighted the flexibility of mirrors, the multiple purposes they often served, the range of perspectives represented by their authors, and the importance of authors' choices of language and genre in shaping the composition and reception of their works. [source]


    Mirrors to One Another: Emotion and Value in Jane Austen and David Hume,by dadlez, e. m.

    JOURNAL OF AESTHETICS AND ART CRITICISM, Issue 2 2010
    TIMOTHY M. COSTELLOE
    No abstract is available for this article. [source]


    The Play of Mirrors: The Representation of Self Mirrored in the Other

    AMERICAN ETHNOLOGIST, Issue 2 2000
    Alcida Rita Ramos
    The Play of Mirrors: The Representation of Self Mirrored in the Other. Sylvia Caiuby Novaes. Austin: University of Texas Press, 1997. xx. 177 pp., figures, notes, bibliography, index. [source]


    Of Smoke, Mirrors, and Passive-Aggressive Behaviors

    PAIN MEDICINE, Issue 1 2006
    Ben A. Rich JD
    No abstract is available for this article. [source]


    High Reflectivity AlGaN/AlN DBR Mirrors Grown by PA-MBE

    PHYSICA STATUS SOLIDI (C) - CURRENT TOPICS IN SOLID STATE PHYSICS, Issue 1 2003
    F. Fedler
    Abstract High reflectivity (>90%) distributed Bragg reflectors (DBR) have been successfully produced utilizing the AlGaN/AlN material system. We present reflectivity and XRD data of Ga-polar AlxGa1,xN/AlN Bragg reflectors grown on sapphire. High peak reflectivities between 54% (5.5 period mirror) and 97% (25.5 period mirror) combined with large reflectivity FWHM of 30 nm have been found. All reflectors have been designed by ex-situ spectroscopic ellipsometry (SE) data of respective reference samples. [source]


    Room Full of Mirrors: A Biography of Jimi Hendrix

    THE JOURNAL OF POPULAR CULTURE, Issue 4 2007
    Douglas Sherry
    No abstract is available for this article. [source]


    Mirrors to One Another: Emotion and Value in Jane Austen and David Hume , E.M. Dadlez

    THE PHILOSOPHICAL QUARTERLY, Issue 241 2010
    Sandrine Berges
    No abstract is available for this article. [source]


    Smoke and Mirrors: Inverting the Discourse on Tobacco

    ANTIPODE, Issue 4 2010
    Marv Waterstone
    Abstract:, Understanding the mechanisms that construct and maintain the taken-for-granted, "common sense" understandings of everyday life is an essential prerequisite for reconfiguring conditions in more progressive directions. Highlighting particular moments, when these processes can be made visible, and drawing appropriate insights from such interrogations is useful not only for illuminating the fundamental malleability of "common sense" (itself a crucial element of change), but also for providing suggestive strategies and tactics for effectuating change. Here the construction and reconstruction of the "common sense" around tobacco is offered as an instructive case. [source]


    A moving planar mirror based approach for cultural reconstruction

    COMPUTER ANIMATION AND VIRTUAL WORLDS (PREV: JNL OF VISUALISATION & COMPUTER ANIMATION), Issue 3-4 2004
    Kyung Ho Jang
    Abstract Modelling from images is a cost-effective means of obtaining virtual cultural heritage models. These models can be effectively constructed from classical Structure from Motion algorithm. However, it's too difficult to reconstruct whole scenes using SFM method since general oriental historic sites contain a very complex shapes and brilliant colours. To overcome this difficulty, the current paper proposes a new reconstruction method based on a moving planar mirror. We devise the mirror posture instead of scene itself as a cue for reconstructing the geometry. That implies that the geometric cues are inserted into the scene by compulsion. With this method, we can obtain the geometrical details regardless of the scene complexity. For this purpose, we first capture image sequences through the moving mirror containing the interested scene, and then calibrate the camera through the mirror's posture. Since the calibration results are still inaccurate due to the detection error, the camera pose is revised using frame-correspondence of the corner points that are easily obtained using the initial camera posture. Finally, 3D information is computed from a set of calibrated image sequences. We validate our approach with a set of experiments on some cultural heritage objects. Copyright © 2004 John Wiley & Sons, Ltd. [source]


    Shape difference visualization for ancient bronze mirrors through 3D range images

    COMPUTER ANIMATION AND VIRTUAL WORLDS (PREV: JNL OF VISUALISATION & COMPUTER ANIMATION), Issue 4 2003
    Tomohito Masuda
    Abstract Japanese archaeologists have paid special attention to ancient Chinese bronze mirrors because the mirrors may provide a key for the exact location of Yamatai State, which is one of the major archaeological controversies. Currently, archaeologists visually analyse ancient Chinese bronze mirrors for their shape difference. The practice requires a huge amount of time and effort. In this paper, we propose an automatic method for detecting the shape difference between a pair of ancient mirrors. The 3D data of the mirrors are obtained using a laser range scanner. Our algorithm then aligns them into the same coordinate and visualizes their shape differences. Our proposed algorithm provides fast and non-damaging analysis for shape difference. Further analysis can be evaluated on our data instead of the actual mirror, so it can be performed by more than one group of archaeologists. Copyright © 2003 John Wiley & Sons, Ltd. [source]


    Comparing Mutual Fund Governance and Corporate Governance

    CORPORATE GOVERNANCE, Issue 5 2006
    Robert F. Radin
    Governance of public corporations in the United States has operated under the agency model with regulatory strengthening since the passage of Sarbanes-Oxley legislation. With this foundation in place, boards are empowered to utilise their power and influence and can effectively monitor the actions of management, intervening where necessary. In effect, the rules of engagement embodied in the structure and the law guide interactions and empowerment. The governance model of the mutual funds industry, representing over 8 trillion dollars, is often viewed as a mirror of the corporate world, but upon closer analysis is found to have significant structural differences that dilute the authority of directors. The two models are compared and analysed with recommendations made to strengthen the oversight of mutual funds. [source]


    Complex visual hallucination and mirror sign in posterior cortical atrophy

    ACTA PSYCHIATRICA SCANDINAVICA, Issue 1 2006
    T. Yoshida
    Objective:, In posterior cortical atrophy (PCA), visual hallucinations are rare symptoms and mirror sign has not been described. Method:, Single case report. Results:, We reported a 60-year-old woman with PCA who reported complex visual hallucinations, such as a man walking in her room, and mirror sign, which was the perception of a stranger staring at her when she looked into a mirror. She could not recognize images of herself in the mirror correctly, although she could recognize that a person standing next to her and the images of that person reflected in the mirror were the same person. Conclusion:, Early complex visual hallucinations in this patient appeared to be more characteristic of dementia with Lewy body than Alzheimer's disease (AD). It is hard to explain mirror sign in this patient as being because of either prosopagnosia, Balint's syndrome or advanced AD. This patient may have other underlying cognitive dysfunction. [source]


    Interrupting infants' persisting object representations: an object-based limit?

    DEVELOPMENTAL SCIENCE, Issue 5 2006
    Erik W. Cheries
    Making sense of the visual world requires keeping track of objects as the same persisting individuals over time and occlusion. Here we implement a new paradigm using 10-month-old infants to explore the processes and representations that support this ability in two ways. First, we demonstrate that persisting object representations can be maintained over brief interruptions from additional independent events , just as a memory of a traffic scene may be maintained through a brief glance in the rearview mirror. Second, we demonstrate that this ability is nevertheless subject to an object-based limit: if an interrupting event involves enough objects (carefully controlling for overall salience), then it will impair the maintenance of other persisting object representations even though it is an independent event. These experiments demonstrate how object representations can be studied via their ,interruptibility', and the results are consistent with the idea that infants' persisting object representations are constructed and maintained by capacity-limited mid-level ,object-files'. [source]


    Testing of fine motor skills in dental students

    EUROPEAN JOURNAL OF DENTAL EDUCATION, Issue 1 2000
    Olaf Luck
    Manual skills form only a part of the capabilities required of future dentists, but they are a very important component, which should be tested. With regard to the dental specialities, the present study tested speciality-independent fine motor skills. No objective, practical solution has been found up to now. 88 dental students and, as a control group, 23 medical students were examined in the longitudinal study. In the course of the analysis, 4 fine motor tests were carried out at the beginning of the 2nd and 6th semesters. The tests comprised the tremometer test, the tremometer test with a mirror, the 2-hand sinusoid test and archery using the Game Gear by SEGA. The test devices facilitate primarily the testing of components of accuracy of movements, indirect working methods, and eye-hand coordination. In the comparison of performances on test day A, the medical students' performance was noticeably better. As testing progressed, results showed stagnation in the performance of the medical students and a significant improvement in the performance of the dental students. That means that the test system can be used for a test over the course of study, but not as an initial test. [source]


    Qualitative and quantitative fracture analyses of high-strength ceramics

    EUROPEAN JOURNAL OF ORAL SCIENCES, Issue 2 2009
    Marit Řilo
    The aims of this study were to assess the applicability and repeatability of qualitative and quantitative analyses of the fracture patterns of four different high-strength ceramics. Ten bar-shaped specimens of four high-strength ceramics with different material composition and fabrication methods had been fractured by three-point bending in water (n = 40). Commonly used fractographic patterns for brittle materials, such as mirror and mist, were used to characterize and quantify the fractured surfaces of these specimens. The analyses were performed twice, on separate occasions, by the same operator. Assessment of the association between fractographic patterns and fracture stress was carried out, and repeatability assessments of the measurements were performed. The fracture initiator site and the common fractographic markers surrounding this site were found in all specimens. Statistically significant correlations were found between certain fracture patterns and stress at fracture. The repeatability of the measurements of the different fractographic patterns varied among the materials. Fracture analyses seem applicable as a tool to determine the fracture initiation site and to estimate the force vectors involved in the fracture of dental high-strength ceramics. [source]


    The skin as a mirror of the ageing process in the human organism , results of the ageing research in the German National Genome Research Network 2

    EXPERIMENTAL DERMATOLOGY, Issue 8 2006
    CH. C. Zouboulis
    Intrinsic human skin ageing is influenced by the individual genetic predisposition and reflects degradation processes of the body. Hormones are decisively involved in intrinsic ageing with reduced secretion of pituitary, adrenal glands, and gonads, which leads to characteristic body and skin phenotypes. A number of advances were recently made in understanding skin ageing mechanisms and major molecular changes, especiallly of the extracellular matrix, were identified. Gene expression patterns compatible with mitotic misregulation and alterations in intracellular transport and metabolism were identified in fibroblasts of ageing humans and humans with progeria. Age-associated changes of extracellular matrix of the skin correlate well with changes been detected in the extracellular matrix of other organs of the human body. Within the National Genome Research Network 2 (NGFN-2) in Germany, the explorative project ,Genetic etiology of human longevity' targets the identification of age-related molecular pathways. For this purpose, skin models of ageing are used. Expression profiling employing cDNA microarrays from known and novel genes and RT-PCR are employed for gene detection and confirmation. Among the potential candidate genes several interesting target genes have been identified. The evaluation of ageing-associated genes in skin models will facilitate the understanding of global molecular ageing mechanisms in the future. [source]


    Integration of a Chemical-Responsive Hydrogel into a Porous Silicon Photonic Sensor for Visual Colorimetric Readout

    ADVANCED FUNCTIONAL MATERIALS, Issue 4 2010
    Lisa M. Bonanno
    Abstract The incorporation of a chemo-responsive hydrogel into a 1D photonic porous silicon (PSi) transducer is demonstrated. A versatile hydrogel backbone is designed via the synthesis of an amine-functionalized polyacrylamide copolymer where further amine-specific biochemical reactions can enable control of cross-links between copolymer chains based on complementary target,probe systems. As an initial demonstration, the incorporation of disulfide chemistry to control cross-linking of this hydrogel system within a PSi Bragg mirror sensor is reported. Direct optical monitoring of a characteristic peak in the white light reflectivity spectrum of the incorporated PSi Bragg mirror facilitates real-time detection of the hydrogel dissolution in response to the target analyte (reducing agent) over a timescale of minutes. The hybrid sensor response characteristics are shown to systematically depend on hydrogel cross-linking density and applied target analyte concentration. Additionally, effects due to responsive hydrogel confinement in a porous template are shown to depend on pore size and architecture of the PSi transducer substrate. Sufficient copolymer and water is removed from the PSi transducer upon dissolution and drying of the hydrogel to induce color changes that can be detected by the unaided eye. This highlights the potential for future development for point-of-care diagnostic biosensing. [source]


    On the existence of non-supersymmetric black hole attractors for two-parameter Calabi-Yau's and attractor equations

    FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 12 2006
    P. Kaura
    We look for possible nonsupersymmetric black hole attractor solutions for type II compactification on (the mirror of) CY3(2,128) expressed as a degree-12 hypersurface in WCP4[1,1,2,2,6]. In the process, (a) for points away from the conifold locus, we show that the existence of a non-supersymmetric attractor along with a consistent choice of fluxes and extremum values of the complex structure moduli, could be connected to the existence of an elliptic curve fibered over C8 which may also be "arithmetic" (in some cases, it is possible to interpret the extremization conditions for the black-hole superpotential as an endomorphism involving complex multiplication of an arithmetic elliptic curve), and (b) for points near the conifold locus, we show that existence of non-supersymmetric black-hole attractors corresponds to a version of A1 -singularity in the space Image(Z6,R2/Z2 (,R3)) fibered over the complex structure moduli space. The (derivatives of the) effective black hole potential can be thought of as a real (integer) projection in a suitable coordinate patch of the Veronese map: CP5,CP20, fibered over the complex structure moduli space. We also discuss application of Kallosh's attractor equations (which are equivalent to the extremization of the effective black-hole potential) for nonsupersymmetric attractors and show that (a) for points away from the conifold locus, the attractor equations demand that the attractor solutions be independent of one of the two complex structure moduli, and (b) for points near the conifold locus, the attractor equations imply switching off of one of the six components of the fluxes. Both these features are more obvious using the attractor equations than the extremization of the black hole potential. [source]