Science.gov

Sample records for identical gamma-vibrational bands

  1. Identical gamma-vibrational bands in {sup 165}Ho

    SciTech Connect

    Radford, D.C.; Galindo-Uribarri, A.; Janzen, V.P.

    1996-12-31

    The structure of {sup 165}Ho at moderate spins has been investigated by means of Coulomb excitation. Two {gamma}-vibrational bands (K{sup {pi}} = 11/2{sup {minus}} and K{sup {pi}} = 3/2{sup {minus}}) are observed, with very nearly identical in-band {gamma}-ray energies. Gamma-ray branching ratios are analyzed to extract information on Coriolis mixing, and the role of the K quantum number in identical bands is discussed.

  2. {gamma}-vibrational states in superheavy nuclei

    SciTech Connect

    Sun Yang; Long Guilu; Al-Khudair, Falih; Sheikh, Javid A.

    2008-04-15

    Recent experimental advances have made it possible to study excited structure in superheavy nuclei. The observed states have often been interpreted as quasiparticle excitations. We show that in superheavy nuclei collective vibrations systematically appear as low-energy excitation modes. By using the microscopic Triaxial Projected Shell Model, we make a detailed prediction on {gamma}-vibrational states and their E2 transition probabilities to the ground state band in fermium and nobelium isotopes where active structure research is going on, and in {sup 270}Ds, the heaviest isotope where decay data have been obtained for the ground-state and for an isomeric state.

  3. High-spin structure and multiphonon {gamma} vibrations in very neutron-rich {sup 114}Ru

    SciTech Connect

    Yeoh, E. Y.; Wang, J. G.; Ding, H. B.; Gu, L.; Xu, Q.; Xiao, Z. G.; Zhu, S. J.; Hamilton, J. H.; Li, K.; Ramayya, A. V.; Hwang, J. K.; Liu, Y. X.; Liu, S. H.; Sheikh, J. A.; Bhat, G. H.; Luo, Y. X.; Rasmussen, J. O.; Lee, I. Y.; Ma, W. C.

    2011-05-15

    High-spin levels of the neutron-rich {sup 114}Ru have been investigated by measuring the prompt {gamma} rays in the spontaneous fission of {sup 252}Cf. The ground-state band and one-phonon {gamma}-vibrational band have been extended up to 14{sup +} and 9{sup +}, respectively. Two levels are proposed as the members of a two-phonon {gamma}-vibrational band. A back bending (band crossing) has been observed in the ground-state band at ({h_bar}/2{pi}){omega}{approx_equal} 0.40 MeV. Using the triaxial deformation parameters, the cranked shell model calculations indicate that this back bending in {sup 114}Ru should originate from the alignment of a pair of h{sub 11/2} neutrons. Triaxial projected shell model calculations for the {gamma}-vibrational band structures of {sup 114}Ru are in good agreement with the experimental data. However, when using the oblate deformation parameters, both of the above-calculated results are not in agreement with the experimental data.

  4. Identical band gaps in structurally re-entrant honeycombs.

    PubMed

    Zhu, Zhu-Wei; Deng, Zi-Chen

    2016-08-01

    Structurally re-entrant honeycomb is a sort of artificial lattice material, characterized by star-like unit cells with re-entrant topology, as well as a high connectivity that the number of folded sheets jointing at each vertex is at least six. In-plane elastic wave propagation in this highly connected honeycomb is investigated through the application of the finite element method in conjunction with the Bloch's theorem. Attention is devoted to exploring the band characteristics of two lattice configurations with different star-like unit cells, defined as structurally square re-entrant honeycomb (SSRH) and structurally hexagonal re-entrant honeycomb (SHRH), respectively. Identical band gaps involving their locations and widths, interestingly, are present in the two considered configurations, attributed to the resonance of the sketch folded sheets, the basic component elements for SSRH and SHRH. In addition, the concept of heuristic models is implemented to elucidate the underlying physics of the identical gaps. The phenomenon of the identical bandgaps is not only beneficial for people to further explore the band characteristics of lattice materials, but also provides the structurally re-entrant honeycombs as potential host structures for the design of lattice-based metamaterials of interest for elastic wave control. PMID:27586722

  5. Fragmentation of two-phonon {gamma}-vibrational strength in deformed nuclei

    SciTech Connect

    Wu, C.Y.; Cline, D.

    1996-12-31

    Rotational and vibrational modes of collective motion. are very useful in classifying the low-lying excited states in deformed nuclei. The rotational mode of collective motion is characterized by rotational bands having correlated level energies and strongly-enhanced E2 matrix elements. The lowest intrinsic excitation with I,K{sup {pi}} = 2,2{sup +} in even-even deformed nuclei, typically occurring at {approx}1 MeV, is classified as a one-phonon {gamma}-vibration state. In a pure harmonic vibration limit, the expected two-phonon {gamma}-vibration states with I,K{sup {pi}} = 0,0{sup +} and 4,4{sup +} should have excitation energies at twice that of the I,K{sup {pi}} = 2,2{sup +} excitation, i.e. {approx}2 MeV, which usually is above the pairing gap leading to possible mixing with two-quasiparticle configurations. Therefore, the question of the localization of two-phonon {gamma}-vibration strength has been raised because mixing may lead to fragmentation of the two-phonon strength over a range of excitation energy. For several well-deformed nuclei, an assignment of I,K{sup {pi}}=4,4{sup +} states as being two-phonon vibrational excitations has been suggested based on the excitation energies and the predominant {gamma}-ray decay to the I,K{sup {pi}}=2,2{sup +} state. However, absolute B(E2) values connecting the presumed two- and one-phonon states are the only unambiguous measure of double phonon excitation. Such B(E2) data are available for {sup 156}Gd, {sup 160}Dy, {sup 168}Er, {sup 232}Th, and {sup 186,188,190,192}Os. Except for {sup 160}Dy, the measured B(E2) values range from 2-3 Weisskopf units in {sup 156}Gd to 10-20 Weisskopf units in osmium nuclei; enhancement that is consistent with collective modes of motion.

  6. Identity Formation through Participation in the Rochester New Horizons Band Programme

    ERIC Educational Resources Information Center

    Dabback, William M.

    2008-01-01

    Results of this qualitative study suggest that membership in the Rochester New Horizons Band programme provides an important vehicle for identity construction and revision in later life. Identities emerge from and are shaped by the social interactions among members in the ensemble setting. Players form new musical identities, reclaim identities…

  7. Exclusion, Engagement and Identity Construction in a Socioeconomically Diverse Middle School Wind Band Classroom

    ERIC Educational Resources Information Center

    Hoffman, Adria Rachel

    2012-01-01

    The purpose of this multiple case study was to explore the wind band classroom as a social context and examine its influence on middle-school students' identity constructions. The integration of sociologically based identity theory and social identity theory from social psychology suggested by Deaux and Martin as well as Stets and Burke proved…

  8. Identity Negotiation: An Intergenerational Examination of Lesbian and Gay Band Directors

    ERIC Educational Resources Information Center

    Taylor, Donald M.

    2011-01-01

    The purpose of this qualitative study was to examine the experiences of lesbian and gay band directors at varying stages of career development to discern how they have negotiated identity within their personal and professional lives. Ten band directors (8 males and 2 females) residing in Texas (n = 8), Florida (n = 1), and Illinois (n = 1)…

  9. Reply to "Comment on two-phonon gamma-vibrational strength in osmium nuclei"

    SciTech Connect

    Wu, C.Y.; Cline, D.; Hayes, A.B.; Simon, M.W.; Krueken, R.; Cooper, J.R.; Barton, C.J.; Beausang, C.W.; Bialik, C.; Caprio, M.A.; Casten, R.F.; Hecht, A.A.; Newman, H.; Novak, J.; Pietralla, N.; Zyromski, K.; Zamfir, N.V.

    2002-09-03

    The claim that the two-phonon gamma-vibrational configuration constitutes a major component for the I=4+ states in osmium nuclei is based on solid experimental evidence. A non-negligible two-quasiparticle or hexadecapole component must also exist in order to explain the data.

  10. Relation between the mass coefficients for rotational and {gamma}-vibrational modes in well-deformed nuclei

    SciTech Connect

    Jolos, R. V. Shirikova, N. Yu. Sushkov, A. V.

    2013-05-15

    The ratio of the mass coefficients for the {gamma}-vibrational and rotational motion for the well-deformed axially symmetric nuclei is calculated basing on the Cranking model and the Random Phase Approximation. The results obtained show that the calculated ratio is equal to 2-3, i.e., significantly larger than unit. This is in a qualitative agreement with the experimental data.

  11. Empirical evidence for identical band gaps in substituted C{sub 60} and C{sub 70} based fullerenes

    SciTech Connect

    Mattias Andersson, L. Tanaka, Hideyuki

    2014-01-27

    Optical absorptance data, and a strong correlation between solar cell open circuit voltages and the ionization potentials of a wide range of differently substituted fullerene acceptors, are presented as empirical evidence for identical, or at least very similar, band gaps in all substituted C{sub 60} and C{sub 70} based fullerenes. Both the number and kind of substituents in this study are sufficiently varied to imply generality. While the band gaps of the fullerenes remain the same for all the different substitutions, their ionization potentials vary greatly in a span of more than 0.4 eV. The merits and drawbacks of using these results together with photoelectron based techniques to determine relative fullerene energy levels for, e.g., organic solar cell applications compared to more direct electrochemical methods are also discussed.

  12. Asymmetrical social mach bands: exaggeration of social identities on the more esteemed side of group borders.

    PubMed

    Rozin, Paul; Scott, Sydney E; Zickgraf, Hana F; Ahn, Flora; Jiang, Hong

    2014-10-01

    Perceptual processes generally enhance borders, because of their high information value. Mach bands are an example in vision. In the social world, borders are also of special significance; one side of a border is generally more esteemed or valued than the other. We claim that entities (individuals, groups) that are just over the border on the positive side tend to exaggerate their membership on the positive side (asymmetrical social Mach bands). We demonstrate this by showing that (a) master's-degree universities use the word university to describe themselves more than major graduate universities do, (b) small international airports use the word international to describe themselves more than major airports do, and (c) University of Pennsylvania students, who are affiliated with a "marginal" Ivy League school, use the word Ivy to describe their school more than Harvard students do.

  13. K'-band observations of the evil eye galaxy: Are the optical and near-infrared dust albedos identical?

    NASA Technical Reports Server (NTRS)

    Witt, Adolf N.; Lindell, Rebecca S.; Block, David L.; Evans, Rhodri

    1994-01-01

    New measurements of the reduction of the V-band surface brightness across the prominent dust feature in the galaxy NGC 4826 are compared with corresponding increases in the V-K' color within the context of radiative transfer models invoking both absorption and scattering. The K'-band surface brightness is found to be higher than expected from standard dust models. We interpret the difference as resulting from a high effective dust albedo at K', with a likely value in excess of 0.8, provided the near-IR extinction curve in NGC 4826 is identical to the Galactic one. The high effective albedo may result from scattering by dust with a maximum grain size at least twice as large as assumed by standard models, a conclusion already indirectly hinted at by recent studies of dust star-forming regions and reflection nebulae. At least part of the high effective albedo at K' may result from near-IR nonequilibrium continuum emission attributable to very small grains.

  14. Octupole and hexadecapole bands in 152Sm

    SciTech Connect

    Garrett, P E; Kulp, W D; Wood, J L; Bandyopadhyay, D; Christen, S; Choudry, S; Dewald, A; Fitzler, A; Fransen, C; Jessen, K; Jolie, J; Kloezer, A; Kudejova, P; Kumar, A; Lesher, S R; Linnemann, A; Lisetskiy, A; Martin, D; Masur, M; McEllistrem, M T; Moller, O; Mynk, M; Orce, J N; Pejovic, P; Pissulla, T; Regis, J; Schiller, A; Tonev, D; Yates, S W

    2005-05-13

    The nucleus {sup 152}Sm is characterized by a variety of low-energy collective modes, conventionally described as rotations, {beta} vibrations, and {gamma} vibrations. Recently, it has been suggested that {sup 152}Sm is at a critical point between spherical and deformed collective phases. Consequently, {sup 152}Sm is being studied by a variety of techniques, including radioactive decay, multi-step Coulomb excitation, in-beam ({alpha},2n{gamma}) {gamma}-ray spectroscopy, and (n,n'{gamma}) spectroscopy. The present work focuses on the latter two reactions; these have been used to investigate the low-lying bands associated with the octupole degree of freedom, including one built on the first excited 0{sup +} band. In addition, the K{sup {pi}} = 4{sup +} hexadecapole vibrational band has been identified.

  15. New Band Structures in Aapprox110 Neutron-Rich Nuclei

    SciTech Connect

    Zhu, S. J.; Wang, J. G.; Ding, H. B.; Gu, L.; Xu, Q.; Yeoh, E. Y.; Xiao, Z. G.; Hamilton, J. H.; Ramayya, A. V.; Hwang, J. K.; Liu, S. H.; Li, K.; Luo, Y. X.; Rasmussen, J. O.; Lee, I. Y.; Qi, B.; Meng, J.

    2010-05-12

    The high spin states of neutron-rich nuclei in Aapprox110 region have been carefully investigated by measuring prompt gamma-gamma-gamma coincident measurements populated in the spontaneous fission of {sup 252}Cf with the Gammasphere detector array. Many new collective bands have been discovered. In this proceeding paper, we introduce some interesting new band structures recently observed by our cooperative groups, that is, the one-phonon- and two-phonon gamma-vibrational bands in odd-A {sup 103}Nb, {sup 105}Mo and {sup 107}Tc, the chiral doublet bands in even-even {sup 106}Mo, {sup 110}Ru and {sup 112}Ru, and the pseudospin partner bands with in {sup 108}Tc. The characteristics of these band structures have been discussed.

  16. Multiple band structures of {sup 131}Cs

    SciTech Connect

    Sihotra, S.; Palit, R.; Naik, Z.; Joshi, P. K.; Deo, A. Y.; Jain, H. C.; Singh, K.; Goswamy, J.; Mehta, D.; Singh, N.; Malik, S. S.; Praharaj, C. R.

    2008-09-15

    Excited states in {sup 131}Cs were investigated through in-beam {gamma}-ray spectroscopic techniques following its population in the {sup 124}Sn({sup 11}B, 4n) fusion-evaporation reaction at a beam energy of 46 MeV. The previously known level scheme has been substantially extended up to {approx}9 MeV excitation energy and 49/2({Dirac_h}/2{pi}) spin with the addition of seven new band structures. The present level scheme consisting of 15 bands exhibits a variety of collective features in this nucleus at intermediate spin. The excitation energies of the observed levels in different bands and the corresponding ratios of transition strengths, i.e., B(M1)/B(E2), have been compared with the results of projected deformed Hartree-Fock calculations based on various quasiparticle configurations. A strongly coupled band has been reassigned a high-K three-quasiparticle {pi}h{sub 11/2} x {nu}(h{sub 11/2}d{sub 3/2}) configuration based on the properties of this band and that of its new coupled side band. The configurations of these bands are also discussed in the framework of tilted-axis cranking model calculations and the systematics of the odd-A Cs isotopes. Additional three energetically closely placed coupled bands have been assigned different unpaired three-quasiparticle configurations. {gamma}-vibrational bands coupled to the {pi}h{sub 11/2} and {pi}g{sub 7/2} single-particle configurations have been reported in this nucleus. Observation of new E1 transitions linking the opposite-parity {pi}h{sub 11/2} and {pi}d{sub 5/2} bands provides fingerprints of possible octupole correlations.

  17. Mass coefficient and Grodzins relation for the ground-state band and {gamma} band

    SciTech Connect

    Jolos, R. V.; Brentano, P. von

    2006-12-15

    It is shown that the available experimental data on the energies of the first and the {gamma}-vibrational 2{sup +} states and the reduced E2 transition probabilities from these states to the ground state require for the explanation significantly different values of the mass coefficients for the rotational motion and {gamma}-vibrations.

  18. Identity Change

    ERIC Educational Resources Information Center

    Burke, Peter J.

    2006-01-01

    This research examines two mechanisms by which persons' identities change over time. First, on the basis of identity control theory (ICT), I hypothesize that while identities influence the way in which a role is played out, discrepancies between the meanings of the identity standard and the meanings of the role performance will result in change.…

  19. 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,…

  20. Brand Identity.

    ERIC Educational Resources Information Center

    Lawlor, John

    1998-01-01

    Instead of differentiating themselves by building "brand identities," colleges and universities often focus on competing with price. As a result, fewer and fewer institutions base their identities on value, the combination of quality and price. Methods of building two concepts to influence customers' brand image and brand loyalty are outlined;…

  1. Laparoscopic Gastric Banding

    PubMed Central

    Suter, Michel; Giusti, Vittorio; Worreth, Marc; Héraief, Eric; Calmes, Jean-Marie

    2005-01-01

    Objective: The objective of this study was to evaluate the results of laparoscopic gastric banding using 2 different bands (the Lapband [Bioenterics, Carpinteria, CA] and the SAGB [Swedish Adjustable Gastric Band; Obtech Medical, 6310 Zug, Switzerland]) in terms of weight loss and correction of comorbidities, short-and long-term complications, and improvement of quality of life in morbidly obese patients Summary Background Data: During the past 10 years, gastric banding has become 1 of the most common bariatric procedures, at least in Europe and Australia. Weight loss can be excellent, but it is not sufficient in a significant proportion of patients, and a number of long-term complications can develop. We hypothesized that the type of band could be of importance in the outcome. Methods: One hundred eighty morbidly obese patients were randomly assigned to receive the Lapband or the SAGB. All the procedures were performed by the same surgeon. The primary end point was weight loss, and secondary end points were correction of comorbidities, early- and long-term complications, importance of food restriction, and improvement of quality of life. Results: Initial weight loss was faster in the Lapband group, but weight loss was eventually identical in the 2 groups. There was a trend toward more early band-related complications and more band infections with the SAGB, but the study had limited power in that respect. Correction of comorbidities, food restriction, long-term complications, and improvement of quality of life were identical. Only 55% to 60% of the patients achieved an excess weight loss of at least 50% in both groups. There was no difference in the incidence of long-term complications. Conclusions: Gastric banding can be performed safely with the Lapband or the SAGB with similar short- and midterm results with respect to weight loss and morbidity. Only 50% to 60% of the patients will achieve sufficient weight loss, and close to 10% at least will develop severe

  2. 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…

  3. Identity Crisis

    ERIC Educational Resources Information Center

    Meraw, Leonard J.

    2012-01-01

    The article presents a simple and highly engaging activity for students involving DNA fingerprints, DNA bands, genotypes, phenotypes, and DNA morphology. The science of DNA fingerprinting, currently done by electrophoresis, extends to all living organisms containing DNA. (Contains 4 figures.)

  4. Projected Identities

    ERIC Educational Resources Information Center

    Anderson, Mark Alan

    2006-01-01

    This article presents the idea behind Projected Identities, an art activity wherein students fuse art-making processes and digital image manipulations in a series of exploratory artistic self-examinations. At some point in every person's life they've been told something hard to forget. Students might, for example, translate phrases like, "Good…

  5. Gastric Banding

    MedlinePlus

    ... gastric banding before deciding to have the procedure. Advertisements for a device or procedure may not include ... feeds Follow FDA on Twitter Follow FDA on Facebook View FDA videos on YouTube View FDA photos ...

  6. [Rethinking identity].

    PubMed

    Dorais, Michel

    2015-01-01

    Pioneering work conducted over the past decades used to design sex, gender and sexual orientation in order to go beyond the traditional binary model. In general, professionals in the health and social services, however, are a little bit slow to take note of this paradigm shift making more space for human diversity, and much less to the marginalization or pathologizing of differences. In this article, the work of Alfred Kinsey, Sandra Bem and Anne Fausto-Sterling will be especially presented, respectively on sexual orientation, gender and sex. It will be proposed to include their contributions (and also those of their successors) in a model taking into account both the diversity and the fluidity that may be present in identities and self-expressions related to sex, gender and sexual orientation. PMID:26966847

  7. Identity Style, Parental Authority, and Identity Commitment.

    ERIC Educational Resources Information Center

    Berzonsky, Michael D.

    2004-01-01

    The role that parental authority patterns and social-cognitive identity styles may play in establishing identity commitments was investigated. The results indicated that family authority and identity style variables combined accounted for 50% of the variation in strength of identity commitment. As hypothesized, the relationship between parental…

  8. Laparoscopic gastric banding

    MedlinePlus

    ... adjustable gastric banding; Bariatric surgery - laparoscopic gastric banding; Obesity - gastric banding; Weight loss - gastric banding ... gastric banding is not a "quick fix" for obesity. It will greatly change your lifestyle. You must ...

  9. The identity of clones.

    PubMed

    Evers, K

    1999-02-01

    A common concern with respect to cloning is based on the belief that cloning produces identical individuals. This is a fundamental misunderstanding of what type of identity-relation cloning involves. The concept "identity" is ambiguous, and the statement that cloning produces "identical" individuals is not meaningful unless the notion of identity is clarified. This paper distinguishes between numerical and qualitative; relational and intrinsic: logical and empirical identity, and discusses the empirical individuation of clones in terms of genetics, physiology, perception, cognition and personality. I argue that the only relation of identity cloning involves is qualitative, intrinsic and empirical: genetic indiscernibility, unlikely to include identity under other aspects mentioned. A popular argument against cloning claims our "right" to a "unique identity". This objection either implies (absurdly) the right not to be an identical twin, or assumes (incorrectly) that cloning involves identity other than genetic. Either way, the argument is untenable.

  10. Bernauer's bands.

    PubMed

    Shtukenberg, Alexander; Gunn, Erica; Gazzano, Massimo; Freudenthal, John; Camp, Eric; Sours, Ryan; Rosseeva, Elena; Kahr, Bart

    2011-06-01

    Ferdinand Bernauer proposed in his monograph, "Gedrillte" Kristalle (1929), that a great number of simple, crystalline substances grow from solution or from the melt as polycrystalline spherulites with helically twisting radii that give rise to distinct bull's-eye patterns of concentric optical bands between crossed polarizers. The idea that many common molecular crystals can be induced to grow as mesoscale helices is a remarkable proposition poorly grounded in theories of polycrystalline pattern formation. Recent reinvestigation of one of the systems Bernauer described revealed that rhythmic precipitation in the absence of helical twisting accounted for modulated optical properties [Gunn, E. et al. J. Am. Chem. Soc. 2006, 128, 14234-14235]. Herein, the Bernauer hypothesis is re-examined in detail for three substances described in "Gedrillte" Kristalle, potassium dichromate, hippuric acid, and tetraphenyl lead, using contemporary methods of analysis not available to Bernauer, including micro-focus X-ray diffraction, electron microscopy, and Mueller matrix imaging polarimetry. Potassium dichromate is shown to fall in the class of rhythmic precipitates of undistorted crystallites, while hippuric acid spherulites are well described as helical fibrils. Tetraphenyl lead spherulites grow by twisting and rhythmic precipitation. The behavior of tetraphenyl lead is likely typical of many substances in "Gedrillte" Kristalle. Rhythmic precipitation and helical twisting often coexist, complicating optical analyses and presenting Bernauer with difficulties in the characterization and classification of the objects of his interest.

  11. Talkin' Musical Identities Blues

    ERIC Educational Resources Information Center

    Lamb, Roberta

    2004-01-01

    After reading the book "Musical Identities" (Raymond MacDonald, David Hargreaves, Dorothy Miell, eds.; Oxford and New York: Oxford University Press, 2002), this author states she finds it difficult to separate "identities in music" from "music in identities." In fact, she cannot conceive of music apart from identity. It is Lamb's view that the…

  12. 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…

  13. Alternative Identities in Multicultural Schools in Israel: Emancipatory Identity, Mixed Identity and Transnational Identity

    ERIC Educational Resources Information Center

    Resnik, Julia

    2006-01-01

    Economic and technological processes of globalization and the increasing migrations of people in the world undermine dominant national identities. One of the main characteristics of our time is the instability of identities and the continuous invention of new/old identities. Traditions and ethnic identities are deconstructed and reconstructed.…

  14. On Fay identity

    SciTech Connect

    Michev, Iordan P.

    2006-09-15

    In the first part of this paper we consider the transformation of the cubic identities for general Korteweg-de Vries (KdV) tau functions from [Mishev, J. Math. Phys. 40, 2419-2428 (1999)] to the specific identities for trigonometric KdV tau functions. Afterwards, we consider the Fay identity as a functional equation and provide a wide set of solutions of this equation. The main result of this paper is Theorem 3.4, where we generalize the identities from Mishev. An open problem is the transformation of the cubic identities from Mishev to the specific identities for elliptic KdV tau functions.

  15. Teaching Identity and Autonomy

    ERIC Educational Resources Information Center

    Spinner-Halev, Jeff

    2005-01-01

    Liberal theorists often link autonomy and identity together, since, these liberals argue, an education that bestows a particular identity on children undermines their autonomy. The charge of schools ought to be to teach children to be open to a variety of identities. Encounters with diversity and cosmopolitanism are good, since they encourage…

  16. Components of Sexual Identity

    ERIC Educational Resources Information Center

    Shively, Michael G.; DeCecco, John P.

    1977-01-01

    This paper examines the four components of sexual identity: biological sex, gender identity, social sex-role, and sexual orientation. Theories about the development of each component and how they combine and conflict to form the individual's sexual identity are discussed. (Author)

  17. Language, Power and Identity

    ERIC Educational Resources Information Center

    Wodak, Ruth

    2012-01-01

    How are identities constructed in discourse? How are national and European identities tied to language and communication? And what role does power have--power in discourse, over discourse and of discourse? This paper seeks to identify and analyse processes of identity construction within Europe and at its boundaries, particularly the diversity of…

  18. Teachers' Interpersonal Role Identity

    ERIC Educational Resources Information Center

    van der Want, Anna C.; den Brok, Perry; Beijaard, Douwe; Brekelmans, Mieke; Claessens, Luce C. A.; Pennings, Helena J. M.

    2015-01-01

    This article investigates the link between teachers' appraisal of specific interpersonal situations in classrooms and their more general interpersonal identity standard, which together form their interpersonal role identity. Using semi-structured and video-stimulated interviews, data on teachers' appraisals and interpersonal identity standards…

  19. Literacy and Sexual Identity.

    ERIC Educational Resources Information Center

    Moje, Elizabeth Birr; MuQaribu, Mudhillun

    2003-01-01

    Calls for more attention to literacy teaching practices and teacher education that acknowledge sexual identity and orientation as key aspects of youth identity development. Discusses experience-based pedagogy and classroom interactions around sexual identities and texts. Notes the need for research and scholarship in the field of literacy and…

  20. Identity security awareness.

    PubMed

    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.

  1. Laparoscopic gastric banding - discharge

    MedlinePlus

    ... laparoscopic gastric banding - discharge; Obesity gastric banding discharge; Weight loss - gastric banding discharge ... as your body gets used to your weight loss and your weight becomes stable. Weight loss may be slower after ...

  2. 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

  3. Neurodegeneration and Identity.

    PubMed

    Strohminger, Nina; Nichols, Shaun

    2015-09-01

    There is a widespread notion, both within the sciences and among the general public, that mental deterioration can rob individuals of their identity. Yet there have been no systematic investigations of what types of cognitive damage lead people to appear to no longer be themselves. We measured perceived identity change in patients with three kinds of neurodegenerative disease: frontotemporal dementia, Alzheimer's disease, and amyotrophic lateral sclerosis. Structural equation models revealed that injury to the moral faculty plays the primary role in identity discontinuity. Other cognitive deficits, including amnesia, have no measurable impact on identity persistence. Accordingly, frontotemporal dementia has the greatest effect on perceived identity, and amyotrophic lateral sclerosis has the least. We further demonstrated that perceived identity change fully mediates the impact of neurodegenerative disease on relationship deterioration between patient and caregiver. Our results mark a departure from theories that ground personal identity in memory, distinctiveness, dispositional emotion, or global mental function.

  4. Come Join the Band

    ERIC Educational Resources Information Center

    Olson, Cathy Applefeld

    2011-01-01

    A growing number of students in Blue Springs, Missouri, are joining the band, drawn by a band director who emphasizes caring and inclusiveness. In the four years since Melissia Goff arrived at Blue Springs High School, the school's extensive band program has swelled. The marching band alone has gone from 100 to 185 participants. Also under Goff's…

  5. Exploring Medical Identity Theft

    PubMed Central

    Mancilla, Desla; Moczygemba, Jackie

    2009-01-01

    The crime of medical identity theft is a growing concern in healthcare institutions. A mixed-method study design including a two-stage electronic survey, telephone survey follow-up, and on-site observations was used to evaluate current practices in admitting and registration departments to reduce the occurrence of medical identity theft. Survey participants were chief compliance officers in acute healthcare organizations and members of the Health Care Compliance Association. Study results indicate variance in whether or how patient identity is confirmed in healthcare settings. The findings of this study suggest that information systems need to be designed for more efficient identity management. Admitting and registration staff must be trained, and compliance with medical identity theft policies and procedures must be monitored. Finally, biometric identity management solutions should be considered for stronger patient identification verification. PMID:20169017

  6. Exploring medical identity theft.

    PubMed

    Mancilla, Desla; Moczygemba, Jackie

    2009-09-16

    The crime of medical identity theft is a growing concern in healthcare institutions. A mixed-method study design including a two-stage electronic survey, telephone survey follow-up, and on-site observations was used to evaluate current practices in admitting and registration departments to reduce the occurrence of medical identity theft. Survey participants were chief compliance officers in acute healthcare organizations and members of the Health Care Compliance Association. Study results indicate variance in whether or how patient identity is confirmed in healthcare settings. The findings of this study suggest that information systems need to be designed for more efficient identity management. Admitting and registration staff must be trained, and compliance with medical identity theft policies and procedures must be monitored. Finally, biometric identity management solutions should be considered for stronger patient identification verification.

  7. Our unique microbial identity.

    PubMed

    Gilbert, Jack A

    2015-05-14

    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.

  8. 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…

  9. Corporate identity. Brand designs.

    PubMed

    Mathieson, Steve

    2004-02-19

    The past two years have seen a steadily more consistent brand identity for the NHS. Branding will become more important as foundation status and PCT commissioning makes acute hospitals more competitive. This has put pressure on some trusts that have their own strong identities.

  10. Personal Identity in Japan

    ERIC Educational Resources Information Center

    Sugimura, Kazumi; Mizokami, Shinichi

    2012-01-01

    This chapter explores characteristics of identity formation among Japanese adolescents and young adults living in a cultural context where individualism has been increasingly emphasized even while maintaining collectivism. We argue that, to develop a sense of identity in Japanese culture, adolescents and young adults carefully consider others'…

  11. 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…

  12. Personal identity in Japan.

    PubMed

    Sugimura, Kazumi; Mizokami, Shinichi

    2012-01-01

    This chapter explores characteristics of identity formation among Japanese adolescents and young adults living in a cultural context where individualism has been increasingly emphasized even while maintaining collectivism. We argue that, to develop a sense of identity in Japanese culture, adolescents and young adults carefully consider others' perspectives, resolve conflicts between self and others, and, in some cases, merge themselves into relationships and groups rather than pursuing their own uniqueness. However, at the same time, as Japanese society changes in various ways, such as the educational and employment systems, a traditional type of identity may gradually become less functional. A new identity configuration, individualistic collectivism, emerges. We also provide future directions for research toward a more global understanding of identity formation among Japanese adolescents and young adults.

  13. Monaural envelope correlation perception for bands narrower or wider than a critical band

    PubMed Central

    Buss, Emily; Hall, Joseph W.; Grose, John H.

    2013-01-01

    Monaural envelope correlation perception concerns the ability of listeners to discriminate stimuli based on the degree of correlation between the temporal envelopes of two or more frequency-separated bands of noise [Richards, J. Acoust. Soc. Am. 82, 1621–1630 (1987)]. Previous work has examined this ability for relatively narrow bandwidths, generally 100 Hz or less. The present experiment explored a wide range of bandwidths, from 25 to 1600 Hz, which included bands narrower and wider than a critical bandwidth. Stimuli were pairs of noise bands separated by a 500-Hz-wide spectral gap centered on 2250 Hz. The magnitude spectra of the pair of comodulated bands were either identical or reflected around the midpoint of the band, and performance was assessed with and without a low-pass noise masker. Although discrimination was best for intermediate bandwidths, mean performance was above chance for all bandwidths tested. Data were similar for stimuli with identical and reflected magnitude spectra, and for stimuli with and without the low-pass masker. The one exception was particularly good performance for intermediate-bandwidth stimuli with identical spectra, for which some listeners reported hearing a tonal cue. Results indicate that listeners are flexible in selecting spectral regions upon which to base across-frequency comparisons. PMID:23297912

  14. Photonic band gap materials

    SciTech Connect

    Soukoulis, C.M. |

    1993-12-31

    An overview of the theoretical and experimental efforts in obtaining a photonic band gap, a frequency band in three-dimensional dielectric structures in which electromagnetic waves are forbidden, is presented.

  15. Rotational spacings in superdeformed bands of nuclei

    SciTech Connect

    Chasman, R.R.; Farhan, A.

    1995-08-01

    An unexpected result of the experimental investigation of superdeformed rotational bands is the observation of near-identical dynamic moments of inertia in different nuclei. This phenomenon was also noted in normally deformed rotational bands. A priori, the BCS method is suspect at I = 0 for the treatment of superdeformed nuclear shapes because the single-particle level density near the nuclear surface is small. If it were large, there would be no superdeformed minimum. At high spin, pairing correlations are further weakened, and the BCS method becomes even worse.

  16. [Diagnosing gender identity].

    PubMed

    Kaltiala-Heino, Riittakerttu; Mattila, Aino; Kärnä, Teemu; Joutsenneimi, Kaisla

    2015-01-01

    Transsexualism and other variations of gender identity are based on a stable sense of identity. The aetiology of this phenomenon is not fully known. Suffering caused by gender dysphoria is alleviated with sex reassignment. The psychiatric assessment of both adolescents and adults has been centralized in Finland to two university hospitals, the Helsinki University Hospital and Tampere University Hospital. In both hospitals, multidisciplinary teams aim at differential diagnosis by using well-known psychiatric and psychological instruments. Wishes for sex reassignment that are caused by a mental health disorder are excluded. Assessment in adolescence is challenging because the identity in youth is still forming.

  17. Adolescence: Search for an Identity

    ERIC Educational Resources Information Center

    Kasinath, H. M.

    2013-01-01

    James Marcia (1991, 1994, 1999, 2002) expanded on Erikson's theory of identity formation. Specifically, he focused on two essential processes in achieving a mature identity: exploration and commitment. Erikson's observations about identity were extended by Marcia, who described four identity statuses: identity diffusion, foreclosure, moratorium…

  18. Native American Identity

    ERIC Educational Resources Information Center

    Horse, Perry G.

    2005-01-01

    Many issues and elements--including ethnic nomenclature, racial attitudes, and the legal and political status of American Indian nations and Indian people--influence Native American identity. (Contains 3 notes.)

  19. Identity verifier performance

    SciTech Connect

    Maxwell, R.

    1987-01-01

    This report is a transcript of a paper given at the Smart Card Applications and Technologies Conference, October 14, 1987. Identity verification techniques are identified and discussed, and statistical performance data is given. 20 figs. (JF)

  20. Autoethnography: Inquiry into Identity

    ERIC Educational Resources Information Center

    Hoppes, Steve

    2014-01-01

    This chapter provides guidelines and suggestions for assessing student development using autoethnography, a qualitative research method. Autoethnography guides students in examining the nexus between personal and professional identities, including skills, challenges, values, histories, and hopes for the future.

  1. Story telling: crafting identities

    PubMed Central

    McMahon, Mary; Watson, Mark

    2013-01-01

    Career guidance clients are seeking to craft new identities that better position them in their careers. The focus of the present article is on narrative career counselling's potential contribution in providing a meaningful and useful experience for career guidance clients. To illustrate the potential of narrative career counselling, the story telling approach is offered as an example to illustrate how identity can be crafted in contextually and culturally sensitive ways. PMID:24009405

  2. Strategic identities in cyberspace.

    PubMed

    Talamo, A; Ligorio, B

    2001-02-01

    This paper aims at describing, according to the recent advances in social psychology and Computer Mediated Communication, how identities are perceived and constructed in cyberspace. All interactions analyzed in this study were performed within "Euroland," a collaborative virtual environment. The interacting community was composed of students, teachers, and researchers working on a transnational educational project. Practices and dialogues within Euroland are analyzed using an ethnographic and conversational method. A sample of discourses and actions that occurred during 8 months of time, selected according to the research aims, was analyzed. During online connections, users were personified by an "Avatar." Avatars are able to walk, fly, and look around the virtual world. They are also able to build and manipulate three-dimensional objects, perform virtual actions, and chat with other connected users. Results showed that "Eurolanders" showed and constructed their identities using strategic "positioning" depending on the interactive situation. Identities are thus dynamic and strongly related to the context, created and constantly recreated by the users. It is concluded that specific features offered by the Euroland environment are exploited by the users as resources to play with, while moving from one strategic positioning to another. Cyber identities involve resources given by specific technological tools and by community. The cyber-identity construction process seems to be highly congruent to the advances in the dialogical perspective in psychology, where identities are considered in their conceptualizations as multiple, "multivoiced," "positioned," and context-dependent.

  3. Tools for Understanding Identity

    SciTech Connect

    Creese, Sadie; Gibson-Robinson, Thomas; Goldsmith, Michael; Hodges, Duncan; Kim, Dee DH; Love, Oriana J.; Nurse, Jason R.; Pike, William A.; Scholtz, Jean

    2013-12-28

    Identity attribution and enrichment is critical to many aspects of law-enforcement and intelligence gathering; this identity typically spans a number of domains in the natural-world such as biographic information (factual information – e.g. names, addresses), biometric information (e.g. fingerprints) and psychological information. In addition to these natural-world projections of identity, identity elements are projected in the cyber-world. Conversely, undesirable elements may use similar techniques to target individuals for spear-phishing attacks (or worse), and potential targets or their organizations may want to determine how to minimize the attack surface exposed. Our research has been exploring the construction of a mathematical model for identity that supports such holistic identities. The model captures the ways in which an identity is constructed through a combination of data elements (e.g. a username on a forum, an address, a telephone number). Some of these elements may allow new characteristics to be inferred, hence enriching the holistic view of the identity. An example use-case would be the inference of real names from usernames, the ‘path’ created by inferring new elements of identity is highlighted in the ‘critical information’ panel. Individual attribution exercises can be understood as paths through a number of elements. Intuitively the entire realizable ‘capability’ can be modeled as a directed graph, where the elements are nodes and the inferences are represented by links connecting one or more antecedents with a conclusion. The model can be operationalized with two levels of tool support described in this paper, the first is a working prototype, the second is expected to reach prototype by July 2013: Understanding the Model The tool allows a user to easily determine, given a particular set of inferences and attributes, which elements or inferences are of most value to an investigator (or an attacker). The tool is also able to take

  4. Development of softcopy environment for primary color banding visibility assessment

    NASA Astrophysics Data System (ADS)

    Min, Byungseok; Pizlo, Zygmunt; Allebach, Jan P.

    2008-01-01

    , we perform haploscopic matching experiments that allow each eye to independently adapt to different viewing conditions; and we find an appearance mapping function in the adapted XYZ space. Finally, to validate the accuracy of the softcopy environment, we conduct a banding matching experiment at three different banding levels by the memory matching method, and confirm that our softcopy environment produces the same banding perception as the hardcopy. In addition, we perform two more separate psychophysical experiments to measure the differential threshold of the intrinsic banding in both the hardcopy and softcopy environments, and confirm that the two thresholds are statistically identical. The results show that with our target printer, human subjects can see a just noticeable difference with a 9% reduction in the banding magnitude for the cyan colorant.

  5. Dogs Discriminate Identical Twins

    PubMed Central

    Pinc, Ludvík; Bartoš, Luděk; 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

  6. Dogs discriminate identical twins.

    PubMed

    Pinc, Ludvík; Bartoš, Luděk; 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

  7. Band anticrossing in highly mismatched semiconductor alloys

    SciTech Connect

    Walukiewicz, W.

    2002-07-26

    The basic theoretical aspects of the band anticrossing effects in highly electronegativity-mismatched semiconductor alloys are reviewed. The many-impurity Anderson model treated in the coherent potential approximation is applied to the semiconductor alloys, in which metallic anion atoms are partially substituted by atoms of a highly electronegative element. Analytical solutions for the Green's function describe dispersion relations and state broadening effects for the restructured conduction band. The solutions are identical to those obtained from the physically intuitive and widely used two-level band anticrossing model. It is shown that the model explains key experimental observations including the unusual composition and pressure dependence of the interband optical transitions and the large enhancement of the electron effective mass.

  8. Narrating Career, Positioning Identity: Career Identity as a Narrative Practice

    ERIC Educational Resources Information Center

    LaPointe, Kirsi

    2010-01-01

    In contrast to traditional definitions of career identity as an individual construct, this article argues for a discursive approach to career identity as a narrative practice. Career identity is conceptualized as a practice of articulating, performing and negotiating identity positions in narrating career experiences. By using the concept of…

  9. Identities for generalized hypergeometric coefficients

    SciTech Connect

    Biedenharn, L.C.; Louck, J.D.

    1991-01-01

    Generalizations of hypergeometric functions to arbitrarily many symmetric variables are discussed, along with their associated hypergeometric coefficients, and the setting within which these generalizations arose. Identities generalizing the Euler identity for {sub 2}F{sub 1}, the Saalschuetz identity, and two generalizations of the {sub 4}F{sub 3} Bailey identity, among others, are given. 16 refs.

  10. Stretch Band Exercise Program

    ERIC Educational Resources Information Center

    Skirka, Nicholas; Hume, Donald

    2007-01-01

    This article discusses how to use stretch bands for improving total body fitness and quality of life. A stretch band exercise program offers a versatile and inexpensive option to motivate participants to exercise. The authors suggest practical exercises that can be used in physical education to improve or maintain muscular strength and endurance,…

  11. Rubber Band Science

    ERIC Educational Resources Information Center

    Cowens, John

    2005-01-01

    Not only are rubber bands great for binding objects together, but they can be used in a simple science experiment that involves predicting, problem solving, measuring, graphing, and experimenting. In this article, the author describes how rubber bands can be used to teach the force of mass.

  12. Singing with the Band

    ERIC Educational Resources Information Center

    Altman, Timothy Meyer; Wright, Gary K.

    2012-01-01

    Usually band, orchestra, and choir directors work independently. However, the authors--one a choral director, the other a band director--have learned that making music together makes friends. Not only can ensemble directors get along, but joint concerts may be just the way to help students see how music can reach the heart. Combined instrumental…

  13. Neurofeedback training of gamma band oscillations improves perceptual processing.

    PubMed

    Salari, Neda; Büchel, Christian; Rose, Michael

    2014-10-01

    In this study, a noninvasive electroencephalography-based neurofeedback method is applied to train volunteers to deliberately increase gamma band oscillations (40 Hz) in the visual cortex. Gamma band oscillations in the visual cortex play a functional role in perceptual processing. In a previous study, we were able to demonstrate that gamma band oscillations prior to stimulus presentation have a significant influence on perceptual processing of visual stimuli. In the present study, we aimed to investigate longer lasting effects of gamma band neurofeedback training on perceptual processing. For this purpose, a feedback group was trained to modulate oscillations in the gamma band, while a control group participated in a task with an identical design setting but without gamma band feedback. Before and after training, both groups participated in a perceptual object detection task and a spatial attention task. Our results clearly revealed that only the feedback group but not the control group exhibited a visual processing advantage and an increase in oscillatory gamma band activity in the pre-stimulus period of the processing of the visual object stimuli after the neurofeedback training. Results of the spatial attention task showed no difference between the groups, which underlines the specific role of gamma band oscillations for perceptual processing. In summary, our results show that modulation of gamma band activity selectively affects perceptual processing and therefore supports the relevant role of gamma band activity for this specific process. Furthermore, our results demonstrate the eligibility of gamma band oscillations as a valuable tool for neurofeedback applications.

  14. Progressive Band Selection

    NASA Technical Reports Server (NTRS)

    Fisher, Kevin; Chang, Chein-I

    2009-01-01

    Progressive band selection (PBS) reduces spectral redundancy without significant loss of information, thereby reducing hyperspectral image data volume and processing time. Used onboard a spacecraft, it can also reduce image downlink time. PBS prioritizes an image's spectral bands according to priority scores that measure their significance to a specific application. Then it uses one of three methods to select an appropriate number of the most useful bands. Key challenges for PBS include selecting an appropriate criterion to generate band priority scores, and determining how many bands should be retained in the reduced image. The image's Virtual Dimensionality (VD), once computed, is a reasonable estimate of the latter. We describe the major design details of PBS and test PBS in a land classification experiment.

  15. Graduate Identity and Employability

    ERIC Educational Resources Information Center

    Hinchliffe, Geoffrey William; Jolly, Adrienne

    2011-01-01

    This paper develops the concept of graduate identity as a way of deepening the understanding of graduate employability. It does this through presenting research in which over 100 employers in East Anglia were asked to record their perceptions of graduates in respect of their employability. The findings suggest a composite and complex graduate…

  16. Women and Identity.

    ERIC Educational Resources Information Center

    Coleman, Ann; And Others

    An interdisciplinary course on women and identity for college-level women's studies instructors is presented. Materials for the course are taken from myth, psychology, sociology, feminism, art, and other disciplines. It is divided into seven units: sexuality, fertility, work and family, fear and envy, women's networks, individuality, and social…

  17. The Visual Identity Project

    ERIC Educational Resources Information Center

    Tennant-Gadd, Laurie; Sansone, Kristina Lamour

    2008-01-01

    Identity is the focus of the middle-school visual arts program at Cambridge Friends School (CFS) in Cambridge, Massachusetts. Sixth graders enter the middle school and design a personal logo as their first major project in the art studio. The logo becomes a way for students to introduce themselves to their teachers and to represent who they are…

  18. Emerging Identity through Movement.

    ERIC Educational Resources Information Center

    Rowen, Betty

    Movement is one of the primary ways in which the young child finds out about his world. Experiences in movement help the young child to develop a healthy sense of identity. Through movement, children: (1) learn, as infants, to distinguish themselves from the outside world; (2) find out what they can do and how they can affect their environment;…

  19. Dissociative Identity Disorder

    ERIC Educational Resources Information Center

    Schmidt, Tom

    2007-01-01

    Few psychological disorders in the Diagnostic Statistical Manual have generated as much controversy as Dissociative Identity Disorder (DID). For the past 35 years diagnoses of DID, previously referred to as Multiple Personality Disorder (MPD), have increased exponentially, causing various psychological researchers and clinicians to question the…

  20. 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.…

  1. Language, Identity, and Exile

    ERIC Educational Resources Information Center

    Erdinast-Vulcan, Daphna

    2010-01-01

    The exilic mode of being, a living on boundary-lines, produces a constant relativization of one's home, one's culture, one's language, and one's self, through the acknowledgement of otherness. It is a homesickness without nostalgia, without the desire to return to the same, to be identical to oneself. The encounter with the other which produces a…

  2. What about Linguistic Identity?

    ERIC Educational Resources Information Center

    Andrews, Micah

    2010-01-01

    The recent influx of Latino immigrants in the Mid-West U.S. has also increased the number of Mexican students in schools. As recent immigrants, one of the challenges Mexican students face besides learning a different language is the construction of new identities in unfamiliar environments. Learning a language involves acquiring another identity…

  3. Constructing Adult Identities.

    ERIC Educational Resources Information Center

    Baxter Magolda, Marcia B.

    1999-01-01

    Stories from a longitudinal study of 39 adults illuminate the complex journey from external to internal self-definition. Explores the dynamics of constructing an internal adult identity from age 22 to 30 and translates into recommendations for effective student affairs practice. (Contains 22 references.) (Author/GCP)

  4. Art, Culture, and Identity.

    ERIC Educational Resources Information Center

    Wilson, John

    1984-01-01

    Educators must realize that identity should not be sought in culture and that people have to be weaned away from their cultures toward what is truly valuable in a transcendental, culture-free way. Instead of feeling narcissistic about culture, people should become involved with art, which also should be culture-free. (RM)

  5. Discourses of Identity

    ERIC Educational Resources Information Center

    Van Leeuwen, Theo

    2009-01-01

    This lecture discusses the concept of lifestyle, which emerged in the field of marketing in the 1970s, as a new, and increasingly pervasive, discourse of identity cutting through older "demographic" discourses. Distributed by mediated experts and role models, and realized through the semiotics of "composites of connotation", it redraws the…

  6. Gender, Identity and CMC.

    ERIC Educational Resources Information Center

    Yates, Simeon J.

    1997-01-01

    Some research and popularized accounts have claimed computer-mediated communication (CMC) based interactions are free of gender inequality though a growing body of research has documented gender differences in access and practice. This article examines both positions and cultural aspects of gender identities to make clear the centrality of gender…

  7. 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…

  8. Story Telling: Crafting Identities

    ERIC Educational Resources Information Center

    McMahon, Mary; Watson, Mark

    2013-01-01

    Career guidance clients are seeking to craft new identities that better position them in their careers. The focus of the present article is on narrative career counselling's potential contribution in providing a meaningful and useful experience for career guidance clients. To illustrate the potential of narrative career counselling, the story…

  9. Under Two Flags: National Conflicts and the Reconstruction of Identity

    ERIC Educational Resources Information Center

    Lyons, Zachary

    2004-01-01

    This paper explores the participation of the French Foreign Legion in national conflicts (from colonial conquest to peace-keeping) and its impact on the imagined community constituted by the unit. Implicit to the notion of the Legion as refuge and fellow legionnaires as a band of brothers are narratives of identity and difference grounded in…

  10. Ferritin associates with marginal band microtubules

    SciTech Connect

    Infante, Anthony A.; Infante, Dzintra; Chan, M.-C.; How, P.-C.; Kutschera, Waltraud; Linhartova, Irena; Muellner, Ernst W.; Wiche, Gerhard; Propst, Friedrich . E-mail: friedrich.propst@univie.ac.at

    2007-05-01

    We characterized chicken erythrocyte and human platelet ferritin by biochemical studies and immunofluorescence. Erythrocyte ferritin was found to be a homopolymer of H-ferritin subunits, resistant to proteinase K digestion, heat stable, and contained iron. In mature chicken erythrocytes and human platelets, ferritin was localized at the marginal band, a ring-shaped peripheral microtubule bundle, and displayed properties of bona fide microtubule-associated proteins such as tau. Red blood cell ferritin association with the marginal band was confirmed by temperature-induced disassembly-reassembly of microtubules. During erythrocyte differentiation, ferritin co-localized with coalescing microtubules during marginal band formation. In addition, ferritin was found in the nuclei of mature erythrocytes, but was not detectable in those of bone marrow erythrocyte precursors. These results suggest that ferritin has a function in marginal band formation and possibly in protection of the marginal band from damaging effects of reactive oxygen species by sequestering iron in the mature erythrocyte. Moreover, our data suggest that ferritin and syncolin, a previously identified erythrocyte microtubule-associated protein, are identical. Nuclear ferritin might contribute to transcriptional silencing or, alternatively, constitute a ferritin reservoir.

  11. Chiral geometry in multiple chiral doublet bands

    NASA Astrophysics Data System (ADS)

    Zhang, Hao; Chen, Qibo

    2016-02-01

    The chiral geometry of multiple chiral doublet bands with identical configuration is discussed for different triaxial deformation parameters γ in the particle rotor model with . The energy spectra, electromagnetic transition probabilities B(M1) and B(E2), angular momenta, and K-distributions are studied. It is demonstrated that the chirality still remains not only in the yrast and yrare bands, but also in the two higher excited bands when γ deviates from 30°. The chiral geometry relies significantly on γ, and the chiral geometry of the two higher excited partner bands is not as good as that of the yrast and yrare doublet bands. Supported by Plan Project of Beijing College Students’ Scientific Research and Entrepreneurial Action, Major State 973 Program of China (2013CB834400), National Natural Science Foundation of China (11175002, 11335002, 11375015, 11461141002), National Fund for Fostering Talents of Basic Science (NFFTBS) (J1103206), Research Fund for Doctoral Program of Higher Education (20110001110087) and China Postdoctoral Science Foundation (2015M580007)

  12. Iliotibial band friction syndrome.

    PubMed

    Lavine, Ronald

    2010-07-20

    Published articles on iliotibial band friction syndrome have been reviewed. These articles cover the epidemiology, etiology, anatomy, pathology, prevention, and treatment of the condition. This article describes (1) the various etiological models that have been proposed to explain iliotibial band friction syndrome; (2) some of the imaging methods, research studies, and clinical experiences that support or call into question these various models; (3) commonly proposed treatment methods for iliotibial band friction syndrome; and (4) the rationale behind these methods and the clinical outcome studies that support their efficacy.

  13. Chiral Bands and Triaxiality

    SciTech Connect

    Petrache, C.M.

    2004-02-27

    The results obtained with the GASP array in the A=130 mass region are reviewed, emphasizing the discovery excited highly-deformed bands and their decay out, the study of the odd-odd Pr nuclei up to high spins, the discovery of stable triaxial bands in Nd nuclei close to the N=82 shell closure. The very recent studies of nuclei near the proton drip line are described. A discussion of the origin of the various doublet bands observed in odd-odd nuclei of the A=130 mass region is presented.

  14. Iliotibial band friction syndrome

    PubMed Central

    2010-01-01

    Published articles on iliotibial band friction syndrome have been reviewed. These articles cover the epidemiology, etiology, anatomy, pathology, prevention, and treatment of the condition. This article describes (1) the various etiological models that have been proposed to explain iliotibial band friction syndrome; (2) some of the imaging methods, research studies, and clinical experiences that support or call into question these various models; (3) commonly proposed treatment methods for iliotibial band friction syndrome; and (4) the rationale behind these methods and the clinical outcome studies that support their efficacy. PMID:21063495

  15. Tremor bands sweep Cascadia

    NASA Astrophysics Data System (ADS)

    Ghosh, A.; Vidale, J. E.; Sweet, J. R.; Creager, K. C.; Wech, A.; Houston, H.

    2009-12-01

    In the last few years, the spatiotemporal distribution of non-volcanic tremor (NVT) activity has been watched with intense curiosity in Cascadia, Japan, and San Andreas Fault. During an episodic tremor and slip (ETS) event in the Cascadia Subduction Zone (CSZ), the dominant tremor migration pattern is characterized by along-strike marching of tremor at a rate of 10 km/day. Spatiotemporal evolution gives critical clues on the physical mechanism of NVT, and the evolving state of stress in the fault. However, tremor migration, its variations over different time-scales, and its underlying physics remain poorly understood. We recorded the May 2008 ETS event in Cascadia with a dense small-aperture seismic array, and beamformed to detect and locate tremor with unparalleled resolution [Ghosh et al., GRL, 2009]. The beams reveal that tremor occurs in elongated bands that extend ~50 km in the direction parallel to the convergence of CSZ and only 10-15 km in the along-strike direction. This is in contrast to the wider blobs of tremor locations seen using a conventional envelope cross-correlation method. The peak activities of the tremor bands are well separated in space and time. Each band remains active for a good part of a day, and fades away while the adjacent band is slowly peaking up. During the 2008 ETS event, these convergence-parallel tremor bands swept the Cascadia megathrust from SE to NW in the region most clearly imaged by our array, producing the long-term tremor migration. Embedded within the bands lie long streaks of tremor that show steady and rapid migration on time-scales of several minutes to an hour at velocities of several tens of km/hr. These tremor streaks also propagate mostly convergence-parallel, along a particular band, both up- and down-dip. The elongated shape of the tremor bands may cause by the tendency of the tremor streaks to align parallel to the direction of subduction. We propose that each tremor band is the result of failure of a section

  16. Decay of superdeformed bands

    SciTech Connect

    Carpenter, M.P.; Khoo, T.L.; Lauritsen, T.

    1995-12-31

    One of the major challenges in the study of superdeformation is to directly connect the large number of superdeformed bands now known to the yrast states. In this way, excitation energies, spins and parities can be assigned to the levels in the second well which is essential to establish the collective and single-particle components of these bands. This paper will review some of the progress which has been made to understand the decay of superdeformed bands using the new arrays including the measurement of the total decay spectrum and the establishment of direct one-step decays from the superdeformed band to the yrast line in {sup 194}Hg. 42 refs., 5 figs.

  17. CSF oligoclonal banding

    MedlinePlus

    ... system. Oligoclonal bands may be a sign of multiple sclerosis. How the Test is Performed A sample of ... Performed This test helps support the diagnosis of multiple sclerosis (MS). However, it does not confirm the diagnosis. ...

  18. 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…

  19. Identity Styles and Religiosity: Examining the Role of Identity Commitment

    ERIC Educational Resources Information Center

    Grajales, Tevni E.; Sommers, Brittany

    2016-01-01

    This study observed the role of identity styles, identity commitment, and identity statuses in predicting religiosity in a sample of undergraduate students attending a Seventh-day Adventist university (N = 138). Two structural models were evaluated via path analysis. Results revealed two strong models for the prediction of religiosity. Identity…

  20. 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…

  1. Polygonal deformation bands

    NASA Astrophysics Data System (ADS)

    Antonellini, Marco; Mollema, Pauline Nella

    2015-12-01

    We report for the first time the occurrence of polygonal faults in sandstone, which is compelling given that layer-bound polygonal fault systems have been observed so far only in fine-grained sediments such as clay and chalk. The polygonal faults are shear deformation bands that developed under shallow burial conditions via strain hardening in dm-wide zones. The edges of the polygons are 1-5 m long. The shear deformation bands are organized as conjugate faults along each edge of the polygon and form characteristic horst-like structures. The individual deformation bands have slip magnitudes ranging from a few mm to 1.5 cm; the cumulative average slip magnitude in a zone is up to 10 cm. The deformation bands heaves, in aggregate form, accommodate a small isotropic horizontal extension (strain <0.005). The individual shear deformation bands show abutting T-junctions, veering, curving, and merging where they mechanically interact. Crosscutting relationships are rare. The interactions of the deformation bands are similar to those of mode I opening fractures. The documented fault networks have important implications for evaluating the geometry of km-scale polygonal fault systems in the subsurface, top seal integrity, as well as constraining paleo-tectonic stress regimes.

  2. Polygonal deformation bands

    NASA Astrophysics Data System (ADS)

    Antonellini, Marco; Mollema, Pauline Nella

    2015-12-01

    We report for the first time the occurrence of polygonal faults in sandstone, which is compelling given that layer-bound polygonal fault systems have been observed so far only in fine-grained sediments such as clay and chalk. The polygonal faults are shear deformation bands that developed under shallow burial conditions via strain hardening in dm-wide zones. The edges of the polygons are 1-5 m long. The shear deformation bands are organized as conjugate faults along each edge of the polygon and form characteristic horst-like structures. The individual deformation bands have slip magnitudes ranging from a few mm to 1.5 cm; the cumulative average slip magnitude in a zone is up to 10 cm. The deformation bands heaves, in aggregate form, accommodate a small isotropic horizontal extension (strain <0.005). The individual shear deformation bands show abutting T-junctions, veering, curving, and merging where they mechanically interact. Crosscutting relationships are rare. The interactions of the deformation bands are similar to those of mode I opening fractures. The documented fault networks have important implications for evaluating the geometry of km-scale polygonal fault systems in the subsurface, top seal integrity, as well as constraining paleo-tectonic stress regimes.

  3. John Locke on Personal Identity**

    PubMed Central

    Nimbalkar, Namita

    2011-01-01

    John Locke speaks of personal identity and survival of consciousness after death. A criterion of personal identity through time is given. Such a criterion specifies, insofar as that is possible, the necessary and sufficient conditions for the survival of persons. John Locke holds that personal identity is a matter of psychological continuity. He considered personal identity (or the self) to be founded on consciousness (viz. memory), and not on the substance of either the soul or the body. PMID:21694978

  4. John locke on personal identity.

    PubMed

    Nimbalkar, Namita

    2011-01-01

    John Locke speaks of personal identity and survival of consciousness after death. A criterion of personal identity through time is given. Such a criterion specifies, insofar as that is possible, the necessary and sufficient conditions for the survival of persons. John Locke holds that personal identity is a matter of psychological continuity. He considered personal identity (or the self) to be founded on consciousness (viz. memory), and not on the substance of either the soul or the body.

  5. Contrasting Visions: Identity, Literacy, and Boundary Work in a Fan Community

    ERIC Educational Resources Information Center

    Korobkova, Ksenia A.; Black, Rebecca W.

    2014-01-01

    This article focuses on learning and identity-related practices of young female fans of a popular British boy band called One Direction. Drawing on qualitative inquiry into a fanfiction community formed around the band, analysis highlights (a) the literate work fans engage in, including writing, reading, critiquing, and collaborating on multimodal…

  6. Tethys’ Mysterious Equatorial Band

    NASA Astrophysics Data System (ADS)

    Elder, Catherine; Helfenstein, P.; Thomas, P.; Veverka, J.; Burns, J. A.; Denk, T.; Porco, C.

    2007-10-01

    We investigate a conspicuous equatorial albedo band on Tethys by analyzing Cassini Imaging Science Subsystem (ISS) Narrow Angle Camera (NAC) images obtained in several wavelengths. The band, first seen in Voyager data by Stooke (1989;2002) is symmetric 15° on either side of the equator and extends from 0° to 160°W that is, almost centered on the leading part of Tethys. There is no evidence that the band is topographically-based; margins are gradational and there is no visible difference in underlying geology. Because of the otherwise broadly-uniform albedo of Tethys, subtle albedo and color variations are easily detected and we sampled them after correcting each image for wavelength-dependent limb darkening effects using Hapke's (2002) photometric model. In the ISS CL1-CL2 filter (611nm), the average albedo contrast of the band with adjacent cratered plains is only about 3%. Compared to its surroundings, the band is about 2-3% brighter in the NAC CL1-UV3 filter (338nm), 2-3% darker in the NAC CL1-GRN (568nm) and 8% darker in the NAC CL1-IR3 filter (930nm). This may indicate that the band exposes regolith composed of cleaner ice with a different grain-size distribution than surrounding materials. The average global photometric properties of Tethys are affected by the E-Ring (Verbiscer et al. 2007). However, dynamical explanations for the narrow albedo band that involve E-ring particles so far are unlikely given the broad nature of the E-ring and the inclination of Tethys. References: Hapke, B. 2002. Icarus 157, 523-534; Stooke, P.J. 1989. Lunar and Planet. Sci. Conf. 20th, 1071-1072; Stooke, P.J. 2002, Lunar and Planet. Sci. Conf, 33rd, #1553; Verbiscer et al. 2007. Science 315, pp.815.

  7. 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…

  8. Pilipino American Identity Development Model

    ERIC Educational Resources Information Center

    Nadal, Kevin L.

    2004-01-01

    This article examines the identity development of F/Pilipino Americans. Because of a distinct history and culture that differentiates them from other Asian groups, F/Pilipino Americans may experience a different ethnic identity development than other Asian Americans. A nonlinear 6-stage ethnic identity development model is proposed to promote…

  9. Identity Development and Multicultural Competency

    ERIC Educational Resources Information Center

    Munley, Patrick H.; Lidderdale, Melissa A.; Thiagarajan, Monica; Null, Ursla

    2004-01-01

    This study investigated the relationship of identity development, measured by the Self-identity Inventory (SII), and universal-diverse orientation (UDO) to multicultural counseling competence. After controlling for personal identity variables, multicultural coursework and training, and social desirability, multiple regression analyses indicated…

  10. 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,…

  11. Identity and Fear of Success.

    ERIC Educational Resources Information Center

    Larkin, Linda

    1987-01-01

    Investigated the relation between ego identity and fear of success using the Rasmussen Ego Identity Scale (EIS), the Marcia interview for identity status, the Cohen People Knowing Questionnaire (PKO) to measure fear of success, and an occupational behavior and attitude questionnaire. EIS and PKO scores correlated significantly with each other and…

  12. Citizenship, Diversity and National Identity

    ERIC Educational Resources Information Center

    Crick, Bernard

    2008-01-01

    This article explores the issues of citizenship, diversity and national identity in the context of the introduction of citizenship education in the UK. It considers the historical context of national identity in the UK and notes that the "British national identity has historically implied diversity". It also analyses the views of British national…

  13. Identity theft and your practice.

    PubMed

    Asbell, Lisa

    2010-01-01

    Medical identity theft is a growing problem in America. The federal government has passed laws to help "prevent" identity theft. However, several powerful medical associations are fighting the legislation. Americans need to know what is happening with these laws and why these laws are important to protect providers from lawsuits and consumers of healthcare from medical identity theft.

  14. Social identity change: shifts in social identity during adolescence.

    PubMed

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

    2011-06-01

    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 measured the effect of the prime on self-stereotyping and ingroup favouritism. The findings showed significant differences in social identity across adolescent groups, in that social identity effects were relatively strong in early- and late-adolescents, particularly when peer group identity rather than gender identity was salient. While these effects were consistent with the experience of change in educational social context, differences in cognitive style were only weakly related to ingroup favouritism. The implications of the findings for theory and future research on social identity during adolescence are discussed.

  15. Suicidal ligature strangulation using gymnastics bands.

    PubMed

    Tzimas, Iliana; Bajanowski, Thomas; Pollak, Stefan; Trübner, Kurt; Thierauf, Annette

    2014-03-01

    Suicidal ligature strangulation is a rare event. The most important issue to solve in the investigation is whether it is a case of homicide or suicide. The characteristics of suicidal ligature strangulation are summarized by Koops and Brinkmann with the emphasis on the nature of the ligature instrument(s). In this article, we present two cases of self-strangulation with an almost identical modus operandi using gymnastics bands. The autopsy findings and the nature of the ligature in these cases are depicted and in good accordance with the described typical observations in suicidal cases. The importance of a broad medico-legal investigation is demonstrated. PMID:24429766

  16. Photonic band gap materials

    NASA Astrophysics Data System (ADS)

    Cassagne, D.

    Photonic band gap materials Photonic band gap materials are periodic dielectric structures that control the propagation of electromagnetic waves. We describe the plane wave method, which allows to calculate the band structures of photonic crystals. By symmetry analysis and a perturbative approach, we predict the appearance of the low energy photonic band gaps of hexagonal structures. We propose new two-dimensional structures called graphite and boron nitride. Using a transfer matrix method, we calculate the transmission of the graphite structure and we show the crucial role of the coupling with external modes. We study the appearance of allowed modes in the photonic band gap by the introduction of localized defects in the periodicity. Finally, we discuss the properties of opals formed by self-organized silica microspheres, which are very promising for the fabrication of three-dimensional photonic crystals. Les matériaux à bandes interdites photoniques sont des structures diélectriques périodiques qui contrôlent la propagation des ondes électromagnétiques. Nous décrivons la méthode des ondes planes qui permet de calculer les structures de bandes des cristaux photoniques. Par une analyse de la symétrie et une approche perturbative, nous précisons les conditions d'existence des bandes interdites de basse énergie. Nous proposons de nouvelles structures bidimensionnelles appelées graphite et nitrure de bore. Grâce à une méthode de matrices de transfert, nous calculons la transmission de la structure graphite et nous mettons en évidence le rôle fondamental du couplage avec les modes extérieurs. Nous étudions l'apparition de modes permis dans la bande interdite grâce à l'introduction de défauts dans la périodicité. Enfin, nous discutons les propriétés des opales constituées de micro-billes de silice auto-organisées, qui sont très prometteuses pour la fabrication de cristaux photoniques tridimensionnels.

  17. Search for excited superdeformed bands in {sup 151}Dy

    SciTech Connect

    Nisius, D.; Janssens, R.V.F.; Crowell, B.

    1995-08-01

    Following the first report of superdeformed (SD) bands with identical transition energies in the pairs ({sup 151}Tb*,{sup 152}Dy), ({sup 150}Gd*, {sup 151}Tb) and ({sup 153}Dy*, {sup 152}Dy) (where * denotes an excited SD band), it was proposed by Nazarewicz et al. that the observations could be understood in a strong-coupling approach if pseudo SU(3) symmetry were invoked. In this model there are three limiting values of the decoupling parameter; i.e. a = 0, {plus_minus}1. In the first two cases mentioned above the pairs of bands have nearly identical transition energies and are interpreted as proton excitations involving the [200]1/2 pseudospin orbital coupled to the {sup 152}Dy core, for which the value of the decoupling parameter is calculated to be a =+1.

  18. Online Identities and Social Networking

    NASA Astrophysics Data System (ADS)

    Maheswaran, Muthucumaru; Ali, Bader; Ozguven, Hatice; Lord, Julien

    Online identities play a critical role in the social web that is taking shape on the Internet. Despite many technical proposals for creating and managing online identities, none has received widespread acceptance. Design and implementation of online identities that are socially acceptable on the Internet remains an open problem. This chapter discusses the interplay between online identities and social networking. Online social networks (OSNs) are growing at a rapid pace and has millions of members in them. While the recent trend is to create explicit OSNs such as Facebook and MySpace, we also have implicit OSNs such as interaction graphs created by email and instant messaging services. Explicit OSNs allow users to create profiles and use them to project their identities on the web. There are many interesting identity related issues in the context of social networking including how OSNs help and hinder the definition of online identities.

  19. Banded transformer cores

    NASA Technical Reports Server (NTRS)

    Mclyman, C. W. T. (Inventor)

    1974-01-01

    A banded transformer core formed by positioning a pair of mated, similar core halves on a supporting pedestal. The core halves are encircled with a strap, selectively applying tension whereby a compressive force is applied to the core edge for reducing the innate air gap. A dc magnetic field is employed in supporting the core halves during initial phases of the banding operation, while an ac magnetic field subsequently is employed for detecting dimension changes occurring in the air gaps as tension is applied to the strap.

  20. Multi-Band-SWIFT

    NASA Astrophysics Data System (ADS)

    Idiyatullin, Djaudat; Corum, Curtis A.; Garwood, Michael

    2015-02-01

    A useful extension to SWIFT (SWeep Imaging with Fourier Transformation) utilizing sidebands of the excitation pulse is introduced. This MRI method, called Multi-Band-SWIFT, achieves much higher bandwidth than standard SWIFT by using multiple segmented excitations (bands) of the field of view. A description of the general idea and variants of the pulse sequence are presented. From simulations and semi-phenomenological theory, estimations of power deposition and signal-to-noise ratio are made. MB-SWIFT and ZTE (zero-TE) sequences are compared based on images of a phantom and human mandible. Multi-Band-SWIFT provides a bridge between SWIFT and ZTE sequences and allows greatly increased excitation and acquisition bandwidths relative to standard SWIFT for the same hardware switching parameters and requires less peak amplitude of the radiofrequency field (or greater flip angle at same peak amplitude) as compared to ZTE. Multi-Band-SWIFT appears to be an attractive extension of SWIFT for certain musculoskeletal and other medical imaging applications, as well as for imaging materials.

  1. The Steel Band.

    ERIC Educational Resources Information Center

    Weil, Bruce

    1996-01-01

    Describes studying the steel drum, an import from Trinidad, as an instrument of intellectual growth. Describes how developing a steel drum band provided Montessori middle school students the opportunity to experience some important feelings necessary to emotional growth during this difficult age: competence, usefulness, independence, and…

  2. Colloquium: Topological band theory

    NASA Astrophysics Data System (ADS)

    Bansil, A.; Lin, Hsin; Das, Tanmoy

    2016-04-01

    The first-principles band theory paradigm has been a key player not only in the process of discovering new classes of topologically interesting materials, but also for identifying salient characteristics of topological states, enabling direct and sharpened confrontation between theory and experiment. This review begins by discussing underpinnings of the topological band theory, which involve a layer of analysis and interpretation for assessing topological properties of band structures beyond the standard band theory construct. Methods for evaluating topological invariants are delineated, including crystals without inversion symmetry and interacting systems. The extent to which theoretically predicted properties and protections of topological states have been verified experimentally is discussed, including work on topological crystalline insulators, disorder and interaction driven topological insulators (TIs), topological superconductors, Weyl semimetal phases, and topological phase transitions. Successful strategies for new materials discovery process are outlined. A comprehensive survey of currently predicted 2D and 3D topological materials is provided. This includes binary, ternary, and quaternary compounds, transition metal and f -electron materials, Weyl and 3D Dirac semimetals, complex oxides, organometallics, skutterudites, and antiperovskites. Also included is the emerging area of 2D atomically thin films beyond graphene of various elements and their alloys, functional thin films, multilayer systems, and ultrathin films of 3D TIs, all of which hold exciting promise of wide-ranging applications. This Colloquium concludes by giving a perspective on research directions where further work will broadly benefit the topological materials field.

  3. Comparing psychological and sociological approaches to identity: identity status, identity capital, and the individualization process.

    PubMed

    Côtè, James E; Schwartz, Seth J

    2002-12-01

    Psychologists have been studying identity processes at the intrapsychic level that resemble what sociologists have noted at the macro-societal level. Specifically, using the identity capital model introduced in previous issues of this journal (Côté, Journal of Adolescence, 19, 419-430; 20, 421-437), we explore a link between the psychologically oriented identity status paradigm, and the sociologically oriented individualization theory. The primary link between these two disciplinary approaches appears to be that the individualization process can be operationalized in terms of agency in identity formation. The relationship between agency and identity formation has been recognized by identity status researchers for some time, but primarily in terminology referring to the intrapsychic level; hence, in some respects, identity status researchers anticipated individualization theory. This link was empirically investigated in three studies of ethnically diverse samples. It was concluded, with a high degree of replication, that the identity statuses representing identity confusion (Diffusion) and identity synthesis (Achievement) appear to represent forms of default and developmental individualization, respectively. This comparison of similar elements between psychological and sociological perspectives may yield a richer understanding of identity formation processes, and help to pave the way for future interdisciplinary research..

  4. Measuring ethnic identity in the Ethnic Identity Scale and the Multigroup Ethnic Identity Measure-Revised.

    PubMed

    Yoon, Eunju

    2011-04-01

    This study examined the newly developed ethnic identity measures of the Ethnic Identity Scale (EIS) and the Multigroup Ethnic Identity Measure-Revised (MEIM-R) from psychometric and theoretical perspectives. Survey data from 289 counseling students in California were analyzed. Confirmatory factor analyses supported three correlated factors of the EIS (exploration, resolution, and affirmation) and two correlated factors of the MEIM-R (exploration, commitment) for both European American and minority students. Consistent with the theories of Erikson's and Marcia's identity development, the EIS and the MEIM-R nicely depicted (a) Marcia's 4 (2 × 2) identity statuses of diffusion, foreclosure, moratorium, and achievement and (b) the hierarchy of identity statuses in relation to subjective well-being as an indicator of adjustment, especially for minority students. Additionally, European American and minority students revealed differences as to the salience and importance of ethnic identity. Recommendations for using the EIS and the MEIM-R are provided.

  5. IdentityMap Visualization of the Super Identity Model

    SciTech Connect

    2015-04-15

    The Super Identity Model is a collaboration with six United Kingdom universities to develop use cases used to piece together a person's identity across biological, cyber, psychological, and biographical domains. PNNL visualized the model in a web-based application called IdentityMap. This is the first step in a promising new field of research. Interested future collaborators are welcome to find out more by emailing superid@pnnl.gov.

  6. Nostalgia and lost identity.

    PubMed

    Pourtova, Elena

    2013-02-01

    Nostalgia for the Soviet Union is a major social phenomenon in Russia today due to the irrevocable losses of the recent past in which Soviet citizens involuntarily became immigrants in their own country. With reference to discussions of nostalgia in philosophical and psychoanalytic literature, I suggest that nostalgia may represent either a defensive regression to the past or a progressive striving for wholeness through re-connecting with what has been lost in the service of a greater integration. I compare this with the processes of adaptation seen in immigrants and provide a clinical illustration of a young man coming to terms with loss and change in the post-Soviet era. When nostalgia is recognized as a legitimate emotional experience it may facilitate mourning and enable the integration of the past with the present and the development of a new identity.

  7. Enumeration, identity, and health.

    PubMed

    Sangaramoorthy, Thurka; Benton, Adia

    2012-01-01

    Although the production of national spaces, citizens, and populations through enumerative practices has been well explored in a variety of disciplines, anthropological methods and analysis can help to illuminate the everyday practices of enumeration, their unexpected consequences, and the co-construction of identities through these processes by both the "counted" and the "counters." The authors in this special issue illustrate how enumeration inflects lived experiences, produces subjectivities, and reconfigures governance. Focusing on the spatial, temporal, ideological, and affective dimensions of the techniques of enumeration, the authors also provide insights into the multiple forms of biopolitical expertise and knowledge that accumulate legitimacy through numerical discourse. They also highlight the ways in which governing structures, institutional and cultural norms, market logics, and rational-technical interventions influence the relationship among numerical categories, subjectivity, and everyday experience. PMID:22746679

  8. Swiss identity smells like chocolate: Social identity shapes olfactory judgments

    PubMed Central

    Coppin, Géraldine; Pool, Eva; Delplanque, Sylvain; Oud, Bastiaan; Margot, Christian; Sander, David; Van Bavel, Jay J.

    2016-01-01

    There is extensive evidence that social identities can shape people’s attitudes and behavior, but what about sensory judgments? We examined the possibility that social identity concerns may also shape the judgment of non-social properties—namely, olfactory judgment. In two experiments, we presented Swiss and non-Swiss participants with the odor of chocolate, for which Switzerland is world-famous, and a control odor (popcorn). Swiss participants primed with Swiss identity reported the odor of chocolate (but not popcorn) as more intense than non-Swiss participants (Experiments 1 and 2) and than Swiss participants primed with individual identity or not primed (Experiment 2). The self-reported intensity of chocolate smell tended to increase as identity accessibility increased—but only among Swiss participants (Experiment 1). These results suggest that identity priming can counter-act classic sensory habituation effects, allowing identity-relevant smells to maintain their intensity after repeated presentations. This suggests that social identity dynamically influences sensory judgment. We discuss the potential implications for models of social identity and chemosensory perception. PMID:27725715

  9. Men as Victims: "Victim" Identities, Gay Identities, and Masculinities

    ERIC Educational Resources Information Center

    Dunn, Peter

    2012-01-01

    The impact and meanings of homophobic violence on gay men's identities are explored with a particular focus on their identities as men and as gay men. Homosexuality can pose a challenge to conventional masculinities, and for some gay men, being victimized on account of sexual orientation reawakens conflicts about their masculinity that they…

  10. Male Reference Group Identity Dependence: A Theory of Male Identity.

    ERIC Educational Resources Information Center

    Wade, Jay C.

    1998-01-01

    Presents a theory of male identity developed to address the question of why men vary in their masculinity ideology and in their conformity to standards of masculinity. An overview of relevant masculinity research, theoretical foundations for the construct of reference group identity dependence, theoretical postulates, associated behavioral, and…

  11. 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…

  12. Identity Support, Identity Devaluation, and Well-Being among Lesbians

    ERIC Educational Resources Information Center

    Beals, Kristin P.; Peplau, Letitia Anne

    2005-01-01

    This research tested predictions about the association of identity support and identity devaluation with psychological well-being (self-esteem, life satisfaction, and depression). Lesbian women completed baseline surveys (N=42), then provided daily experience reports during a 2-week period (n=38), and completed a 2-month follow-up survey (n=34).…

  13. 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…

  14. Banded electromagnetic stator core

    DOEpatents

    Fanning, A.W.; Gonzales, A.A.; Patel, M.R.; Olich, E.E.

    1996-06-11

    A stator core for an electromagnetic pump includes a plurality of circumferentially adjoining groups of flat laminations disposed about a common centerline axis and collectively defining a central bore and a discontinuous outer perimeter, with adjacent groups diverging radially outwardly to form V-shaped gaps. An annular band surrounds the groups and is predeterminedly tensioned to clamp together the laminations, and has a predetermined flexibility in a radial direction to form substantially straight bridge sections between the adjacent groups. 5 figs.

  15. Banded electromagnetic stator core

    DOEpatents

    Fanning, Alan W.; Gonzales, Aaron A.; Patel, Mahadeo R.; Olich, Eugene E.

    1994-01-01

    A stator core for an electromagnetic pump includes a plurality of circumferentially adjoining groups of flat laminations disposed about a common centerline axis and collectively defining a central bore and a discontinuous outer perimeter, with adjacent groups diverging radially outwardly to form V-shaped gaps. An annular band surrounds the groups and is predeterminedly tensioned to clamp together the laminations, and has a predetermined flexibility in a radial direction to form substantially straight bridge sections between the adjacent groups.

  16. Banded electromagnetic stator core

    DOEpatents

    Fanning, Alan W.; Gonzales, Aaron A.; Patel, Mahadeo R.; Olich, Eugene E.

    1996-01-01

    A stator core for an electromagnetic pump includes a plurality of circumferentially adjoining groups of flat laminations disposed about a common centerline axis and collectively defining a central bore and a discontinuous outer perimeter, with adjacent groups diverging radially outwardly to form V-shaped gaps. An annular band surrounds the groups and is predeterminedly tensioned to clamp together the laminations, and has a predetermined flexibility in a radial direction to form substantially straight bridge sections between the adjacent groups.

  17. Banded electromagnetic stator core

    DOEpatents

    Fanning, A.W.; Gonzales, A.A.; Patel, M.R.; Olich, E.E.

    1994-04-05

    A stator core for an electromagnetic pump includes a plurality of circumferentially adjoining groups of flat laminations disposed about a common centerline axis and collectively defining a central bore and a discontinuous outer perimeter, with adjacent groups diverging radially outwardly to form V-shaped gaps. An annular band surrounds the groups and is predeterminedly tensioned to clamp together the laminations, and has a predetermined flexibility in a radial direction to form substantially straight bridge sections between the adjacent groups. 5 figures.

  18. Micromechanics of shear banding

    SciTech Connect

    Gilman, J.J.

    1992-08-01

    Shear-banding is one of many instabilities observed during the plastic flow of solids. It is a consequence of the dislocation mechanism which makes plastic flow fundamentally inhomogeneous, and is exacerbated by local adiabatic heating. Dislocation lines tend to be clustered on sets of neighboring glide planes because they are heterogeneously generated; especially through the Koehler multiple-cross-glide mechanism. Factors that influence their mobilities also play a role. Strain-hardening decreases the mobilities within shear bands thereby tending to spread (delocalize) them. Strain-softening has the inverse effect. This paper reviews the micro-mechanisms of these phenomena. It will be shown that heat production is also a consequence of the heterogeneous nature of the microscopic flow, and that dislocation dipoles play an important role. They are often not directly observable, but their presence may be inferred from changes in thermal conductivity. It is argued that after deformation at low temperatures dipoles are distributed a la Pareto so there are many more small than large ones. Instability at upper yield point, the shapes of shear-band fronts, and mechanism of heat generation are also considered. It is shown that strain-rate acceleration plays a more important role than strain-rate itself in adiabatic instability.

  19. 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)

  20. 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…

  1. 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,…

  2. Identity Options in Russian Textbooks

    ERIC Educational Resources Information Center

    Shardakova, Marya; Pavlenko, Aneta

    2004-01-01

    This article introduces a new analytical approach to the study of identity options offered in foreign and second language textbooks. This approach, grounded in poststructuralist theory and critical discourse analysis, is applied to 2 popular beginning Russian textbooks. Two sets of identity options are examined in the study: imagined learners…

  3. Black Youth, Identity, and Ethics

    ERIC Educational Resources Information Center

    Duncan, Garrett Albert

    2005-01-01

    This article examines stage models of racial identity that researchers and educators use to explain the subjective processes that influence how black youth navigate school. Despite the explicit challenge that most models of racial identity have posed to racist discourses in the research literature, the underlying ethics of their developmental…

  4. Teacher Investment in Learner Identity

    ERIC Educational Resources Information Center

    Reeves, Jenelle

    2009-01-01

    From a sociocultural perspective, teacher identity is constructed in relation to others, including other teachers and students. Drawing on positioning theory and the concept of investment, this study analyzed the case of a secondary English teacher who negotiated his teacher identity in relation to English language learners (ELLs). Findings…

  5. 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…

  6. Identity Research in Mathematics Education

    ERIC Educational Resources Information Center

    Darragh, Lisa

    2016-01-01

    This paper examines the literature on identity within mathematics education published in journals over the past two decades. It analyses the theoretical underpinnings, research methods and definitions of identity, providing a critique rather than a summary of the literature. A total of 188 articles from 85 different journals are reviewed in the…

  7. The Joint Accomplishment of Identity

    ERIC Educational Resources Information Center

    Hand, Victoria; Gresalfi, Melissa

    2015-01-01

    Identity has become a central concept in the analysis of learning from social perspectives. In this article, we draw on a situative perspective to conceptualize identity as a "joint accomplishment" between individuals and their interactions with norms, practices, cultural tools, relationships, and institutional and cultural contexts.…

  8. Exploring Leader Identity and Development.

    PubMed

    Priest, Kerry L; Middleton, Eric

    2016-01-01

    Taking on a leader identity can be a motivating force for pursuing leader development. This chapter explores the reciprocal and recursive nature of identity development and leader development, emphasizing how shifting views of self influence one's motivation to develop as a leader.

  9. The Challenge of Hyphenated Identity

    ERIC Educational Resources Information Center

    Cheng, Li-Rong Lilly

    2004-01-01

    Hyphenated identity is a term that references the multiple socially bound features that individuals use to think about themselves. This article examines cultural and linguistic considerations in the understanding of hyphenated identity and discusses the merit of the concept for clinical use in speech-language pathology. The sources used consist of…

  10. Palestinian Children Crafting National Identity

    ERIC Educational Resources Information Center

    Habashi, Janette

    2008-01-01

    This study examines the formulation of national identity in Palestinian children by exploring their understanding of its paradoxes. Twelve Palestinian children were interviewed from cities, villages and refugee camps in the West Bank. The children express the multiple dimensions of national identity in terms of "self" and "other"; however these…

  11. National Identity in Korean Curriculum

    ERIC Educational Resources Information Center

    Kim, Hyojeong

    2004-01-01

    The concept of national identity has evolved during the last half century within the Korean social studies curriculum. There have been seven curricular revisions since the first national curriculum was released in 1955. Each time the concept of national identity was changed with the biggest changes to this concept within the last two iterations of…

  12. Naxi Intellectuals and Ethnic Identity

    ERIC Educational Resources Information Center

    Haibo, Yu

    2009-01-01

    This article examines the role of Naxi intellectuals in the ethnic identity resurgence of the Naxi since the 1980s in China. The article illustrates 3 aspects of Naxi intellectuals' approach to the identity construction of the Naxi: researching the Naxi, engaging in cultural activities and exhibitions, and teaching the Naxi culture to the younger…

  13. Gender identity development in adolescence.

    PubMed

    Steensma, Thomas D; Kreukels, Baudewijntje P C; de Vries, Annelou L C; Cohen-Kettenis, Peggy T

    2013-07-01

    This article is part of a Special Issue "Puberty and Adolescence".This article aims to provide an outline of what is currently known on trajectories, and contributing factors to gender identity development in adolescence. We give a historical overview of the concept of gender identity, and describe general identity development in adolescence, gender identity development in the general population and in gender variant youth. Possible psychosocial (such as child and parental characteristics) and biological factors (such as the effects of prenatal exposure to gonadal hormones and the role of genetics) contributing to a gender variant identity are discussed. Studies focusing on a number of psychosocial and biological factors separately, indicate that each of these factors influence gender identity formation, but little is known about the complex interplay between the factors, nor about the way individuals themselves contribute to the process. Research into normative and gender variant identity development of adolescents is clearly lagging behind. However, studies on persons with gender dysphoria and disorders of sex development, show that the period of adolescence, with its changing social environment and the onset of physical puberty, seems to be crucial for the development of a non-normative gender identity.

  14. Understanding Civic Identity in College

    ERIC Educational Resources Information Center

    Weerts, David J.; Cabrera, Alberto F.

    2015-01-01

    Past literature has examined ways in which college students adopt civic identities. However, little is known about characteristics of students that vary in their expression of these identities. Drawing on data from American College Testing (ACT), this study employs multinomial logistic regression to understand attributes of students who vary in…

  15. National Development Generates National Identities.

    PubMed

    Golob, Tea; Makarovič, Matej; Suklan, Jana

    2016-01-01

    The purpose of the article is to test the relationship between national identities and modernisation. We test the hypotheses that not all forms of identity are equally compatible with modernisation as measured by Human Development Index. The less developed societies are characterised by strong ascribed national identities based on birth, territory and religion, but also by strong voluntarist identities based on civic features selected and/or achieved by an individual. While the former decreases with further modernisation, the latter may either decrease or remain at high levels and coexist with instrumental supranational identifications, typical for the most developed countries. The results, which are also confirmed by multilevel regression models, thus demonstrate that increasing modernisation in terms of development contributes to the shifts from classical, especially ascribed, identities towards instrumental identifications. These findings are particularly relevant in the turbulent times increasingly dominated by the hardly predictable effects of the recent mass migrations. PMID:26841050

  16. National Development Generates National Identities

    PubMed Central

    2016-01-01

    The purpose of the article is to test the relationship between national identities and modernisation. We test the hypotheses that not all forms of identity are equally compatible with modernisation as measured by Human Development Index. The less developed societies are characterised by strong ascribed national identities based on birth, territory and religion, but also by strong voluntarist identities based on civic features selected and/or achieved by an individual. While the former decreases with further modernisation, the latter may either decrease or remain at high levels and coexist with instrumental supranational identifications, typical for the most developed countries. The results, which are also confirmed by multilevel regression models, thus demonstrate that increasing modernisation in terms of development contributes to the shifts from classical, especially ascribed, identities towards instrumental identifications. These findings are particularly relevant in the turbulent times increasingly dominated by the hardly predictable effects of the recent mass migrations. PMID:26841050

  17. 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

  18. Brain Activation of Identity Switching in Multiple Identity Tracking Task.

    PubMed

    Lyu, Chuang; Hu, Siyuan; Wei, Liuqing; Zhang, Xuemin; Talhelm, Thomas

    2015-01-01

    When different objects switch identities in the multiple identity tracking (MIT) task, viewers need to rebind objects' identity and location, which requires attention. This rebinding helps people identify the regions targets are in (where they need to focus their attention) and inhibit unimportant regions (where distractors are). This study investigated the processing of attentional tracking after identity switching in an adapted MIT task. This experiment used three identity-switching conditions: a target-switching condition (where the target objects switched identities), a distractor-switching condition (where the distractor objects switched identities), and a no-switching condition. Compared to the distractor-switching condition, the target-switching condition elicited greater activation in the frontal eye fields (FEF), intraparietal sulcus (IPS), and visual cortex. Compared to the no-switching condition, the target-switching condition elicited greater activation in the FEF, inferior frontal gyrus (pars orbitalis) (IFG-Orb), IPS, visual cortex, middle temporal lobule, and anterior cingulate cortex. Finally, the distractor-switching condition showed greater activation in the IFG-Orb compared to the no-switching condition. These results suggest that, in the target-switching condition, the FEF and IPS (the dorsal attention network) might be involved in goal-driven attention to targets during attentional tracking. In addition, in the distractor-switching condition, the activation of the IFG-Orb may indicate salient change that pulls attention away automatically.

  19. Noise exposure in marching bands

    NASA Astrophysics Data System (ADS)

    Keefe, Joseph

    2005-09-01

    Previous studies involving orchestras have shown that music ensembles can produce hazardous noise levels. There are no similar data for marching bands and pep bands. In order to evaluate the noise levels produced by marching and pep bands, 1/3-octave-band sound-pressure levels were measured while these groups rehearsed and performed. Data were collected while marching with the bands to ensure a realistic environment. Comparing these data to OSHA and NIOSH criteria, marching and pep band exposures often exceed safe values. For typical exposures, OSHA doses range from 11% to 295%, while NIOSH doses range from 35% to 3055%. Exposures that would be considered hazardous in the workplace are common in marching and pep bands; students and band directors should take steps to recognize the risk posed by various instruments and various locations, and should implement hearing conservation efforts.

  20. Coming to an Asexual Identity: Negotiating Identity, Negotiating Desire

    PubMed Central

    Scherrer, Kristin S.

    2010-01-01

    Sexuality is generally considered an important aspect of self-hood. Therefore, individuals who do not experience sexual attraction, and embrace an asexual identity are in a unique position to inform the social construction of sexuality. This study explores the experiences of asexual individuals utilizing open ended Internet survey data from 102 self-identified asexual people. In this paper I describe several distinct aspects of asexual identities: the meanings of sexual, and therefore, asexual behaviors, essentialist characterizations of asexuality, and lastly, interest in romance as a distinct dimension of sexuality. These findings have implications not only for asexual identities, but also for the connections of asexuality with other marginalized sexualities. PMID:20593009

  1. [Evolution of differential chromosome banding].

    PubMed

    Rodionov, A V

    1999-03-01

    Specific chromosome banding patterns in different eukaryotic taxons are reviewed. In all eukaryotes, chromosomes are composed of alternating bands, each differing from the adjacent material by the molecular composition and structural characteristics. In minute chromosomes of fungi and Protozoa, these bands are represented by kinetochores (Kt- (Cd-)bands), nucleolus organizers (N-bands), and telomeres as well as the euchromatin. In genomes of most fungi and protists, long clusters of tandem repeats and, consequently, C-bands were not revealed but they are likely to be found out in species with chromosomes visible under a light microscope, which are several tens of million bp in size. Chromosomes of Metazoa are usually larger. Even in Cnidaria, they contain C-bands, which are replicated late in the S phase. In Deuterostomia, chromosome euchromatin regions differ by replication time: bands replicating at the first half of the S phase alternate with bands replicating at the second half of the S phase. Longitudinal differentiation in the replication pattern of euchromatic regions is observed in all classes of Vertebrata beginning with the bony fish although the time when it developed in Deuterostomia is unknown. Apparently, the evolution of early and late replicating subdomains in Vertebrata euchromatin promoted fast accumulation of differences in the molecular composition of nucleoproteid complexes characteristic of early and late replicating bands. As a result, the more contrasting G/R and Q-banding patterns of chromosomes developed especially in Eutheria. The evolution of Protostomia and Plantae followed another path. An increase in chromosome size was not accompanied by the appearance of wide RBE and RBL euchromatin bands. The G/R-like banding within the interstitial chromosome regions observed in some representatives of Invertebrates and higher plants arose independently in different phylogenetic lineages. This banding pattern seems to be closer to that of C-banding

  2. Broad band waveguide spectrometer

    DOEpatents

    Goldman, Don S.

    1995-01-01

    A spectrometer for analyzing a sample of material utilizing a broad band source of electromagnetic radiation and a detector. The spectrometer employs a waveguide possessing an entry and an exit for the electromagnetic radiation emanating from the source. The waveguide further includes a surface between the entry and exit portions which permits interaction between the electromagnetic radiation passing through the wave guide and a sample material. A tapered portion forms a part of the entry of the wave guide and couples the electromagnetic radiation emanating from the source to the waveguide. The electromagnetic radiation passing from the exit of the waveguide is captured and directed to a detector for analysis.

  3. Crater Floor Bands

    NASA Technical Reports Server (NTRS)

    2004-01-01

    12 February 2004 The somewhat concentric bands in this Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image may be an expression of eroded layered material. The crater in which these occur is found at middle southern latitude near the west rim of the giant Hellas impact basin. The picture is located near 36.6oS, 321.2oW. Sunlight illuminates the scene from the upper left; the image covers an area 3 km (1.9 mi) wide.

  4. Iliotibial band friction syndrome.

    PubMed

    Kirk, K L; Kuklo, T; Klemme, W

    2000-11-01

    Overuse knee injuries are common, but ITBFS is often overlooked as a cause of lateral knee pain in an active population. Iliotibial band friction syndrome is an overuse injury usually seen in long distance runners, cyclists, and military personnel. The exact incidence of the syndrome has been estimated to range from 1.6%-52% depending on the population studied. The diagnosis is often made from a thorough history and clinical examination with an infrequent need for additional studies. Treatment is mostly conservative consisting of rest and anti-inflammatory agents, with only the refractory cases requiring surgical resection of the impinging portion of the ITB.

  5. African American Racial Identity across the Lifespan: Identity Status, Identity Content, and Depressive Symptoms

    ERIC Educational Resources Information Center

    Yip, Tiffany; Seaton, Eleanor K.; Sellers, Robert M.

    2006-01-01

    Cluster analytic methods were used to create 4 theorized ethnic identity statuses (achieved, foreclosed, moratorium, and diffused) among 940 African American adolescents (13-17 years old), college students (18-23 years old), and adults (27-78 years old). Evidence for the existence of 4 identity statuses was found across the 3 age groups. The…

  6. Identity and Intimacy during Adolescence: Connections among Identity Styles, Romantic Attachment and Identity Commitment

    ERIC Educational Resources Information Center

    Kerpelman, Jennifer L.; Pittman, Joe F.; Cadely, Hans Saint-Eloi; Tuggle, Felicia J.; Harrell-Levy, Marinda K.; Adler-Baeder, Francesca M.

    2012-01-01

    Integration of adult attachment and psychosocial development theories suggests that adolescence is a time when capacities for romantic intimacy and identity formation are co-evolving. The current study addressed direct, indirect and moderated associations among identity and romantic attachment constructs with a diverse sample of 2178 middle…

  7. The Oxygen a Band

    NASA Astrophysics Data System (ADS)

    Benner, D. Chris; Devi, V. Malathy; Hoo, Jiajun; Hodges, Joseph; Long, David A.; Sung, Keeyoon; Drouin, Brian; Okumura, Mitchio; Bui, Thinh Quoc; Rupasinghe, Priyanka

    2014-06-01

    The oxygen A band is used for numerous atmospheric experiments, but spectral line parameters that sufficiently describe the spectrum to the level required by OCO2 and other high precision/accuracy experiments are lacking. Fourier transform spectra from the Jet Propulsion Laboratory and cavity ring down spectra from the National Institute of Standards and Technology were fitted simultaneously using the William and Mary multispectrum nonlinear least squares fitting technique into a single solution including the entire band. In addition, photoacoustic spectra already available from the California Institute of Technology will be added to the solution. The three types of spectrometers are complementary allowing the strengths of each to fill in the weaknesses of the others. With this technique line positions, intensities, widths, shifts, line mixing, Dicke narrowing, temperature dependences and collision induced absorption have been obtained in a single physically consistent fit. D. Chris Benner, C. P. Rinsland, V. M. Devi, M. A. H. Smith, and D. Atkins, JQSRT 1995;53:705-21. Part of the research described in this paper was performed at The College of William and Mary, the, Jet Propulsion Laboratory, California Institute of Technology, under contracts and cooperative agreements with the National Aeronautics and Space Administration and the Jet Propulsion Laboratory. Support for the National Institute of Standards and Technology was provided by the NIST Greenhouse Gas Measurements and Climate Research Program and a NIST Innovations in Measurement Science (IMS) award.

  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. 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…

  10. 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…

  11. Digital Identity - The Legal Person?

    NASA Astrophysics Data System (ADS)

    Sullivan, Clare

    This paper examines the concept of digital identity which the author asserts is now evident in the United Kingdom as a consequence of the Identity Cards Act (UK) 2006 and the National Identity Scheme it establishes. The nature and functions of the concept, particularly the set of information which constitutes an individual’s transactional identity, are examined. The paper then considers the central question of who, or what, is the legal person in a transaction i.e. who or what enters into legal relations. The analysis presents some intriguing results which were almost certainly not envisaged by the legislature. The implications extend beyond the United Kingdom to similar schemes in other jurisdictions, and to countries, like Australia, which may implement such a scheme.

  12. 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)

  13. Science Identity in Informal Education

    NASA Astrophysics Data System (ADS)

    Schon, Jennifer A.

    The national drive to increase the number of students pursuing Science Technology, Engineering, and Math (STEM) careers has brought science identity into focus for educators, with the need to determine what encourages students to pursue and persist in STEM careers. Science identity, the degree to which students think someone like them could be a scientist is a potential indicator of students pursuing and persisting in STEM related fields. Science identity, as defined by Carlone and Johnson (2007) consists of three constructs: competence, performance, and recognition. Students need to feel like they are good at science, can perform it well, and that others recognize them for these achievements in order to develop a science identity. These constructs can be bolstered by student visitation to informal education centers. Informal education centers, such as outdoor science schools, museums, and various learning centers can have a positive impact on how students view themselves as scientists by exposing them to novel and unique learning opportunities unavailable in their school. Specifically, the University of Idaho's McCall Outdoor Science School (MOSS) focuses on providing K-12 students with the opportunity to learn about science with a place-based, hands-on, inquiry-based curriculum that hopes to foster science identity development. To understand the constructs that lead to science identity formation and the impact the MOSS program has on science identity development, several questions were explored examining how students define the constructs and if the MOSS program impacted how they rate themselves within each construct. A mixed-method research approach was used consisting of focus group interviews with students and pre, post, one-month posttests for visiting students to look at change in science identity over time. Results from confirmatory factor analysis indicate that the instrument created is a good fit for examining science identity and the associated

  14. Diffuse interstellar bands: a comprehensive laboratory study.

    PubMed

    Johnson, Fred M

    2006-12-01

    As a result of the search for the identity of the chromophores responsible for producing the diffuse interstellar bands, a comprehensive exposition of experimental data is presented, which implicates the following molecules: (1) The extremely stable organic molecules, magnesium tetrabenzoporphyrin (MgTBP) and H(2)TBP. (2) A paraffin matrix (referred to as "grains") containing TBPs. (3) A low concentration of pyridine (also within the grains), whose transmission window at 2175 A, accounts for the ubiquitous UV bump. The blue emission spectra associated with the central star, HD44179, of the Red Rectangle displays the fluorescence excitation spectra of bare MgTBP. This unique spectrum matches the low temperature lab data of MgTBP in the vapor phase. An effective grain temperature of 2.728 K (+/-0.008) was deduced, based on MgTBP's lowest measured vibrational state of 341 GHz.

  15. Segmental structure in banded mongoose calls

    PubMed Central

    2012-01-01

    In complex animal vocalizations, such as bird or whale song, a great variety of songs can be produced via rearrangements of a smaller set of 'syllables', known as 'phonological syntax' or 'phonocoding' However, food or alarm calls, which function as referential signals, were previously thought to lack such combinatorial structure. A new study of calls in the banded mongoose Mungos mungo provides the first evidence of phonocoding at the level of single calls. The first portion of the call provides cues to the identity of the caller, and the second part encodes its current activity. This provides the first example known in animals of something akin to the consonants and vowels of human speech. See research article http://www.biomedcentral.com/1741-7007/10/97 PMID:23206277

  16. Segmental structure in banded mongoose calls.

    PubMed

    Fitch, W Tecumseh

    2012-01-01

    In complex animal vocalizations, such as bird or whale song, a great variety of songs can be produced via rearrangements of a smaller set of 'syllables', known as 'phonological syntax' or 'phonocoding' However, food or alarm calls, which function as referential signals, were previously thought to lack such combinatorial structure. A new study of calls in the banded mongoose Mungos mungo provides the first evidence of phonocoding at the level of single calls. The first portion of the call provides cues to the identity of the caller, and the second part encodes its current activity. This provides the first example known in animals of something akin to the consonants and vowels of human speech. PMID:23206277

  17. Development of Wide Band Feeds

    NASA Astrophysics Data System (ADS)

    Ujihara, H.; Ichikawa, R.

    2012-12-01

    Wide Band feeds are being developed at NICT, NAOJ, and some universities in Japan for VLBI2010, SKA, and MARBLE. SKA, the Square Kilometre Array, will comprise thousands of radio telescopes with square kilometer aperture size for radio astronomy. MARBLE consists of small portable VLBI stations developed at NICT and GSI in Japan. They all need wide band feeds with a greater than 1:10 frequency ratio. Thus we have been studying wide band feeds with dual linear polarization for these applications.

  18. Ethmocephaly with amniotic band syndrome.

    PubMed

    Das, Gobinda; Gayen, Sibnath; Bandyopadhyay, Sabyasachi; Das, Debabrata

    2012-10-01

    Ethmocephaly is the rarest form of holoprosencephaly, which occurs due to an incomplete cleavage of the forebrain. Clinically, the disease presents with a proboscis, hypotelorism, microphthalmos and malformed ears. Amniotic band syndrome is another rare congenital malformation with ring-like constriction bands in the limbs, head, face or trunk. We present a case of ethmocephaly with amniotic band syndrome, which is likely the first of its kind, published in the literature. PMID:23248551

  19. Iliotibial band Z-lengthening.

    PubMed

    Richards, David P; Alan Barber, F; Troop, Randal L

    2003-03-01

    Iliotibial band friction syndrome (ITBFS) is a common overuse injury reported to afflict 1.6% to 12% of runners. It results from an inflammatory response secondary to excessive friction that occurs between the lateral femoral epicondyle and the iliotibial band. Initial treatments include rest, anti-inflammatory medication, modalities (ice or heat), stretching, physical therapy, and possibly a cortisone injection. In recalcitrant cases of ITBFS, surgery has been advocated. This report describes a surgical technique of Z-lengthening of the iliotibial band in patients presenting with lateral knee pain localized to the iliotibial band at the lateral femoral epicondyle and Gerdy's tubercle who failed all nonoperative efforts.

  20. Photonic band structure

    SciTech Connect

    Yablonovitch, E.

    1993-05-01

    We learned how to create 3-dimensionally periodic dielectric structures which are to photon waves, as semiconductor crystals are to electron waves. That is, these photonic crystals have a photonic bandgap, a band of frequencies in which electromagnetic waves are forbidden, irrespective of propagation direction in space. Photonic bandgaps provide for spontaneous emission inhibition and allow for a new class of electromagnetic micro-cavities. If the perfect 3-dimensional periodicity is broken by a local defect, then local electromagnetic modes can occur within the forbidden bandgap. The addition of extra dielectric material locally, inside the photonic crystal, produces {open_quotes}donor{close_quotes} modes. Conversely, the local removal of dielectric material from the photonic crystal produces {open_quotes}acceptor{close_quotes} modes. Therefore, it will now be possible to make high-Q electromagnetic cavities of volume {approx_lt}1 cubic wavelength, for short wavelengths at which metallic cavities are useless. These new dielectric micro-resonators can cover the range all the way from millimeter waves, down to ultraviolet wavelengths.

  1. Garage Band or GarageBand[R]? Remixing Musical Futures

    ERIC Educational Resources Information Center

    Vakeva, Lauri

    2010-01-01

    In this paper, I suggest that it is perhaps time to consider the pedagogy of popular music in more extensive terms than conventional rock band practices have to offer. One direction in which this might lead is the expansion of the informal pedagogy based on a "garage band" model to encompass various modes of digital artistry wherever this artistry…

  2. Social Trust of Virtual Identities

    NASA Astrophysics Data System (ADS)

    Seigneur, Jean-Marc

    Most other chapters of this book discuss computational models of trust in broader terms, giving definitions of trust, explaining how trust should evolve over time, surveying the different facets of trust .On the other hand, this chapter has a clear focus on the important element of identity in computational trust mechanisms. Trust and reputation are easier to form in face-to-face situations than in situations involving the use of computers and networks because the identity of the trustee is more difficult to verify. In this chapter, the different means to recognise virtual identities are surveyed. Next, their integration into computational trust engines is discussed, especially according to four main requirements: Adaptability, Security, Usability and Privacy (ASUP).

  3. Band of Rubble

    NASA Technical Reports Server (NTRS)

    2005-01-01

    This artist's animation illustrates a massive asteroid belt in orbit around a star the same age and size as our Sun. Evidence for this possible belt was discovered by NASA's Spitzer Space Telescope when it spotted warm dust around the star, presumably from asteroids smashing together.

    The view starts from outside the belt, where planets like the one shown here might possibly reside, then moves into to the dusty belt itself. A collision between two asteroids is depicted near the end of the movie. Collisions like this replenish the dust in the asteroid belt, making it detectable to Spitzer.

    The alien belt circles a faint, nearby star called HD 69830 located 41 light-years away in the constellation Puppis. Compared to our own solar system's asteroid belt, this one is larger and closer to its star - it is 25 times as massive, and lies just inside an orbit equivalent to that of Venus. Our asteroid belt circles between the orbits of Mars and Jupiter.

    Because Jupiter acts as an outer wall to our asteroid belt, shepherding its debris into a series of bands, it is possible that an unseen planet is likewise marshalling this belt's rubble. Previous observations using the radial velocity technique did not locate any large gas giant planets, indicating that any planets present in this system would have to be the size of Saturn or smaller.

    Asteroids are chunks of rock from 'failed' planets, which never managed to coalesce into full-sized planets. Asteroid belts can be thought of as construction sites that accompany the building of rocky planets.

  4. "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…

  5. Blended Identities: Identity Work, Equity and Marginalization in Blended Learning

    ERIC Educational Resources Information Center

    Heikoop, Will

    2013-01-01

    This article is a theoretical study of the self-presentation strategies employed by higher education students online; it examines student identity work via profile information and avatars in a blended learning environment delivered through social networking sites and virtual worlds. It argues that students are faced with difficult choices when…

  6. Split Identity: Intransitive Judgments of the Identity of Objects

    ERIC Educational Resources Information Center

    Rips, Lance J.

    2011-01-01

    Identity is a transitive relation, according to all standard accounts. Necessarily, if "x = y" and "y = z," then "x = z." However, people sometimes say that two objects, "x" and "z," are the same as a third, "y," even when "x" and "z" have different properties (thus, "x = y" and "y = z," but "x is not equal to z"). In the present experiments,…

  7. Identity in Flux: Negotiating Identity While Studying Abroad

    ERIC Educational Resources Information Center

    Young, Jennifer T.; Natrajan-Tyagi, Rajeswari; Platt, Jason J.

    2015-01-01

    Study abroad is one aspect of global movement that connects individuals of diverse backgrounds. Individuals studying abroad are proffered to negotiate self-identity when they confront novelty and new contexts. This study chose to use the qualitative method of phenomenological interviews to examine how individuals experience themselves and others…

  8. Drawing Identity: Beginning Pre-Service Teachers' Professional Identities

    ERIC Educational Resources Information Center

    Beltman, Susan; Glass, Christine; Dinham, Judith; Chalk, Beryl; Nguyen, Bich

    2015-01-01

    Developing a professional teacher identity can be complex as pre-service teachers engage with a process informed by their previous experiences of teachers and teaching, by learning in their pre-service course, by field placements, and by societal expectations. Using drawing as the method for gathering data, pre-service teachers in an Australian…

  9. Integrating Identities: Ethnic and Academic Identities among Diverse College Students

    ERIC Educational Resources Information Center

    Walker, Lovey H. M.; Syed, Moin

    2013-01-01

    Background/Context: Students of Color continue to be underrepresented at the undergraduate level. Recent research has demonstrated the importance of non-academic psychosocial factors for understanding college experiences. One factor, identity, is a broad, multidimensional construct that comprises numerous distinct domains, including political,…

  10. Status of personnel identity verifiers

    SciTech Connect

    Maxwell, R.L.

    1985-01-01

    Identity verification devices based on the interrogation of six different human biometric features or actions now exist and in general have been in development for about ten years. The capability of these devices to meet the cost and operational requirements of speed, accuracy, ease of use and reliability has generally increased although the verifier industry is still immature. Sandia Laboratories makes a continuing effort to stay abreast of identity verifier developments and to assess the capabilities and improvements of each device. Operating environment and procedures more typical of field use can often reveal performance results substantially different from laboratory tests. An evaluation of several recently available verifiers is herein reported.

  11. RFID identity theft and countermeasures

    NASA Astrophysics Data System (ADS)

    Herrigel, Alexander; Zhao, Jian

    2006-02-01

    This paper reviews the ICAO security architecture for biometric passports. An attack enabling RFID identity theft for a later misuse is presented. Specific countermeasures against this attack are described. Furthermore, it is shown that robust high capacity digital watermarking for the embedding and retrieving of binary digital signature data can be applied as an effective mean against RFID identity theft. This approach requires only minimal modifications of the passport manufacturing process and is an enhancement of already proposed solutions. The approach may also be applied in combination with a RFID as a backup solution (damaged RFID chip) to verify with asymmetric cryptographic techniques the authenticity and the integrity of the passport data.

  12. Paleomagnetic dating of liesegang bands

    SciTech Connect

    Cochran, K.A.; Elmore, R.

    1985-01-01

    Paleomagnetic analysis, in conjunction with petrographic studies, was used to date the formation of hematite liesegang bands in the Ordovician Upper Arbuckle Group in southern Oklahoma. The hematite bands form symmetrical patterns on both sides of calcite-filled fractures in dolomite beds. The bands decrease in abundance and become more diffuse away from the fractures. Dedolomite is common near the fractures. Samples from distinctly banded dolomite near the fractures contain a relatively strong chemical remanent magnetization (CRM) with a southeasterly declination and shallow inclination. Samples farther from the fractures that are less distinctly banded or have no bands contain a weaker and less table CRM. Petrographic evidence and stable demagnetization to 600/sup 0/C indicate that the CRM resides in hematite. Samples were collected from both flanks of the Arbuckle Anticline (late Pennsylvanian folding), and a fold test demonstrates that the CRM is post-folding. The pole position for the CRM corresponds to the Early Permian (approx. 280 Ma) part of the Apparent Polar Wander Path for stable North America. These results suggest that the liesegang bands formed in the Early Permian, probably by rhythmic precipitation of hematite from fluids that moved out from the fractures. The fluids also apparently caused dedolomitization and precipitation of calcite in intercrystalline pore spaces. These fluids were probably the source of iron for the bands, although iron released from dedolimitization of ferroan dolomite may have been a local source.

  13. The Moral Ends of Band

    ERIC Educational Resources Information Center

    Allsup, Randall Everett

    2012-01-01

    This article provides a theoretical framework through which to reimagine and revitalize contemporary music education practices, using the large ensemble paradigm called "band" as the primary unit of analysis. Literature suggests that band places too much emphasis on teacher control and external measures of validation. Critics propose replacing…

  14. Orbiter KU-band transmitter

    NASA Technical Reports Server (NTRS)

    Halterman, R.

    1976-01-01

    The design, build, and test of an engineering breadboard Ku band quadraphase shift keyed and wideband frequency modulated transmitter are described. This orbiter Ku band transmitter drawer is to simulate the orbiter transmitter and meet the functional requirements of the orbiter communication link.

  15. Report from the banding lab

    USGS Publications Warehouse

    Tautin, J.

    1995-01-01

    Mr. Tautin reported on the seemingly everchanging structure of biological science units within the Interior Department. Current Congressional proposals would either change the name of the Bird Banding Lab's parent agency or make it part of the Geological Survey. The current Congress has not looked favorably on science budgets within the Interior Department, and the Banding Lab's budget is being squeezed ever tighter.

  16. An Existentialist Account of Identity Formation.

    ERIC Educational Resources Information Center

    Bilsker, Dan

    1992-01-01

    Gives account of Marcia's identity formation model in language of existentialist philosophy. Examines parallels between ego-identity and existentialist approaches. Describes identity in terms of existentialist concepts of Heidegger and Sartre. Argues that existentialist account of identity formation has benefits of clarification of difficult…

  17. 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…

  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. 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…

  20. Band anticrossing in dilute nitrides

    SciTech Connect

    Shan, W.; Yu, K.M.; Walukiewicz, W.; Wu, J.; Ager III, J.W.; Haller, E.E.

    2003-12-23

    Alloying III-V compounds with small amounts of nitrogen leads to dramatic reduction of the fundamental band-gap energy in the resulting dilute nitride alloys. The effect originates from an anti-crossing interaction between the extended conduction-band states and localized N states. The interaction splits the conduction band into two nonparabolic subbands. The downward shift of the lower conduction subband edge is responsible for the N-induced reduction of the fundamental band-gap energy. The changes in the conduction band structure result in significant increase in electron effective mass and decrease in the electron mobility, and lead to a large enhance of the maximum doping level in GaInNAs doped with group VI donors. In addition, a striking asymmetry in the electrical activation of group IV and group VI donors can be attributed to mutual passivation process through formation of the nearest neighbor group-IV donor nitrogen pairs.

  1. Dual-band infrared camera

    NASA Astrophysics Data System (ADS)

    Vogel, H.; Schlemmer, H.

    2005-10-01

    Every year, numerous accidents happen on European roads due to bad visibility (fog, night, heavy rain). Similarly, the dramatic aviation accidents of year 2001 in Milan and Zurich have reminded us that aviation safety is equally affected by reduced visibility. A dual-band thermal imager was developed in order to raise human situation awareness under conditions of reduced visibility especially in the automotive and aeronautical context but also for all transportation or surveillance tasks. The chosen wavelength bands are the Short Wave Infrared SWIR and the Long Wave Infrared LWIR band which are less obscured by reduced visibility conditions than the visible band. Furthermore, our field tests clearly show that the two different spectral bands very often contain complementary information. Pyramidal fusion is used to integrate complementary and redundant features of the multi-spectral images into a fused image which can be displayed on a monitor to provide more and better information for the driver or pilot.

  2. Gender Identity Disorder in Children.

    ERIC Educational Resources Information Center

    Redmond, Dionne; Flauto, Phil

    Identity formation involves the development of self esteem, social skills, and a sense of self. Many gay and lesbian adults have noted that they were aware of their attraction to members of the same sex as early as five- and six-years-old. Reactions they received from parents and others often added to their stress. Following a description of the…

  3. Cuban Identity: A Preliminary Study.

    ERIC Educational Resources Information Center

    Alvarez, Carlos; Bliss, Linda A.; Vigil, Peter

    This study explored patterns of differences and commonalities in the constructions of identity by Cuban Americans, focusing on the pain of their experiencing "Paradise Lost," a theme identified in earlier research in which Cuban American college students reported: strong Cuban connections; value for the Spanish language, food, and culture; and a…

  4. The Ontogeny of Face Identity

    ERIC Educational Resources Information Center

    Blass, Elliott M.; Camp, Carole Ann

    2004-01-01

    A paradigm was designed to study how infants identify live faces. Eight- to 21-week-old infants were seated comfortably and were presented an adult female, dressed in a white laboratory coat and a white turtle neck sweater, until habituation ensued. The adult then left the room. One minute later either she or an identically garbed confederate…

  5. Extracting entanglement from identical particles.

    PubMed

    Killoran, N; Cramer, M; Plenio, M B

    2014-04-18

    Identical particles and entanglement are both fundamental components of quantum mechanics. However, when identical particles are condensed in a single spatial mode, the standard notions of entanglement, based on clearly identifiable subsystems, break down. This has led many to conclude that such systems have limited value for quantum information tasks, compared to distinguishable particle systems. To the contrary, we show that any entanglement formally appearing amongst the identical particles, including entanglement due purely to symmetrization, can be extracted into an entangled state of independent modes, which can then be applied to any task. In fact, the entanglement of the mode system is in one-to-one correspondence with the entanglement between the inaccessible identical particles. This settles the long-standing debate about the resource capabilities of such states, in particular spin-squeezed states of Bose-Einstein condensates, while also revealing a new perspective on how and when entanglement is generated in passive optical networks. Our results thus reveal new fundamental connections between entanglement, squeezing, and indistinguishability.

  6. Entanglement conditions and polynomial identities

    SciTech Connect

    Shchukin, E.

    2011-11-15

    We develop a rather general approach to entanglement characterization based on convexity properties and polynomial identities. This approach is applied to obtain simple and efficient entanglement conditions that work equally well in both discrete as well as continuous-variable environments. Examples of violations of our conditions are presented.

  7. Identity, Culture and Cosmopolitan Futures

    ERIC Educational Resources Information Center

    Rizvi, Fazal

    2005-01-01

    This paper examines the policy notion of multiculturalism, and suggests that it is no longer adequate for understanding contemporary forms of interculturality that span across the globe, and are deeply affected by the processes of cultural globalization. Cultural identities can no longer be assumed as static and nation-bound, and are created…

  8. Feminist Identity among Latina Adolescents

    ERIC Educational Resources Information Center

    Manago, Adriana M.; Brown, Christia Spears; Leaper, Campbell

    2009-01-01

    This study explores developing conceptions of feminism among Latina adolescents, their prevalence of feminist endorsement, and whether home environment and well-being are related to feminist identity. One hundred and forty Latina girls (Grades 9 to 12, M age = 15) wrote personal narratives of their understanding of feminism and whether they…

  9. Restoring Ancestral Language, Restoring Identity.

    ERIC Educational Resources Information Center

    Bannon, Kay T.

    1999-01-01

    Describes the Cherokee Language Renewal Program that was designed to help Cherokee elementary school children learn to function in the dominant culture without sacrificing their own cultural heritage. Explains how the program got started, and reports on how it helps restore a cultural identify to a people who are at risk of losing their identity.…

  10. 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.…

  11. Understanding Academic Identity through Metaphor

    ERIC Educational Resources Information Center

    Billot, Jennie; King, Virginia

    2015-01-01

    Metaphors used by higher education teachers in their narratives of academic life provide insight into aspects of academic identity. Drawing on an international study of leader/follower dynamics, the teachers' narratives reveal how academics interpret their interactions with leaders; the perceived distance between expectations and experience, and…

  12. [Identity and narration: autobiographical quests].

    PubMed

    Arfuch, Leonor

    2013-01-01

    This paper aims to tackle the subtle relation between autobiographical narratives and identity construction, from a non essentialist conception of identity. In a perspective that articulates philosophy of language, psychoanalysis, semiotics and literary critique, we posit the concept of biographical space as an analytical instrument to make a critical update of the reconfiguration of identities and subjectivities in contemporary culture, marked by the predominance of the biographical, the private and a kind of "public intimacy". This look is more symptomatic than descriptive: it intends to account for the rise of auto/biographical narratives and life-stories, from canonic genres to their multiple derivations in the media, social networks and the most diverse artistic practices, a phenomenon that seems to reaffirm the notion of narrative identities by Ricoeur. Our analysis here, from an ethic, aesthetic and political point of view, will focus on two visual arts experiences that have recently taken place for the first time in Buenos Aires: Christian Boltanski's and Tracey Emin's, solo exhibitions, each of them with a different biographical approach. PMID:24251298

  13. Socialization and Ethnic Identity Development.

    ERIC Educational Resources Information Center

    Weinreich, Peter

    A study of identity development was carried out in Bristol, England, with Asian, West Indian, and indigenous British adolescents. Ethnic and gender differences in patterns of identification conflict with others were found between minority group boys and girls. Both sexes from both minority groups, however, had substantial identification conflicts…

  14. All binomial identities are verifiable

    PubMed Central

    Zeilberger, Doron

    1981-01-01

    Sister Celine Fasenmyer's technique for obtaining pure recurrence relations for hypergeometric polynomials is formalized and used to show that every identity involving sums of products of binomial coefficients can be verified by checking a finite number of its special cases. PMID:16593045

  15. Developing Students' Professional Digital Identity

    ERIC Educational Resources Information Center

    Cochrane, Thomas; Antonczak, Laurent

    2015-01-01

    In contrast to the myth of the "Digital Native" and the ubiquity of Facebook use, we have found that students' digital identities are predominantly social with their online activity beyond Facebook limited to being social media consumers rather than producers. Within a global economy students need to learn new digital literacy skills to…

  16. 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…

  17. Identity from classical invariant theory

    SciTech Connect

    Stein, P.R.

    1982-01-01

    A simple derivation is given of a well-known relation involving the so-called Cayley Operator of classical invariant theory. The proof is induction-free and independent of Capelli's identity; it makes use only of a known-theorem in the theory of determinants and some elementary combinatorics.

  18. 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.

  19. 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.

  20. Identity Representations in Visual Texts

    ERIC Educational Resources Information Center

    Hayik, Rawia

    2012-01-01

    In an attempt to address minority issues with Israeli Arab English-as-a-foreign-language ninth-grade students, I as a teacher researcher introduced picture books on the issue and invited students to respond in different modes, one of which was artistic. In one of the lessons, students created collages to represent their identities. In this…

  1. Brand: Identity, Image, and Relationships

    ERIC Educational Resources Information Center

    Danker, Stephanie Harvey

    2014-01-01

    Adolescents face complex dilemmas such as challenging issues of identity and self-concept, and struggles with building and maintaining relationships. These issues must be embraced in the art classroom. This Instructional Resource will focus on the concept of brand--connecting visual art, marketing, and psychology--and center on ideas found in the…

  2. 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.

  3. [Identity and narration: autobiographical quests].

    PubMed

    Arfuch, Leonor

    2013-01-01

    This paper aims to tackle the subtle relation between autobiographical narratives and identity construction, from a non essentialist conception of identity. In a perspective that articulates philosophy of language, psychoanalysis, semiotics and literary critique, we posit the concept of biographical space as an analytical instrument to make a critical update of the reconfiguration of identities and subjectivities in contemporary culture, marked by the predominance of the biographical, the private and a kind of "public intimacy". This look is more symptomatic than descriptive: it intends to account for the rise of auto/biographical narratives and life-stories, from canonic genres to their multiple derivations in the media, social networks and the most diverse artistic practices, a phenomenon that seems to reaffirm the notion of narrative identities by Ricoeur. Our analysis here, from an ethic, aesthetic and political point of view, will focus on two visual arts experiences that have recently taken place for the first time in Buenos Aires: Christian Boltanski's and Tracey Emin's, solo exhibitions, each of them with a different biographical approach.

  4. Student Perspectives on Multiracial Identity

    ERIC Educational Resources Information Center

    King, Alissa R.

    2008-01-01

    When the U.S. 2000 Census allowed individuals to identify themselves in two or more racial categories, approximately 6.8 million people identified with more than one race. Interest in racial identity development among college students had just broken the surface in the 1990s, and following the 2000 census, even more attention was paid to the…

  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. 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)…

  7. The inheritance of centromere identity.

    PubMed

    Niikura, Yohei; Kitagawa, Risa; Kitagawa, Katsumi

    2016-07-01

    CENP-A (Centromere protein A) is a histone H3 variant that epigenetically determines the centromere position, but the mechanism of its centromere inheritance is obscure. We propose that CENP-A ubiquitylation, which is inherited through dimerization between rounds of cell division, is a candidate for the epigenetic mark of centromere identity. PMID:27652331

  8. Personal Identity: Moving beyond Essence

    ERIC Educational Resources Information Center

    Webster, R. Scott

    2005-01-01

    Education's ancient and profoundly important pursuit to "know thyself", is often realised through engaging with the question "who am I?" In order to the identify "who" in this search, it is argued in this paper that personal identity should be understood to be embedded in the purposes one has for one's life through "how" one relates, and is…

  9. Systematics of band moment of inertia of yrast and excited SD bands of even-even nuclei in A~150 mass region

    NASA Astrophysics Data System (ADS)

    Sharma, Neha; Mittal, H. M.

    2015-07-01

    A four parameter formula has been applied to all the yrast and excited superdeformed (SD) bands of even-even nuclei in the A 150 mass region to obtain band moment of inertia J0. In even-even nuclei, totally three yrast SD bands and 16 excited SD bands have been fitted. The measured Qt values and hence the axes ratios have been used to calculate the rigid body J0 values and compared with the fitted values of J0. It is interesting to look at the yrast SD band 152Dy(1), the doubly magic SD nucleus and the first one to be discovered that the J0 values are quite larger than that extracted from Qt measurement. We found that all the excited SD bands in even-even nuclei are signature partner SD bands because the J0 value of each signature partner SD band is almost identical. Among all these excited SD bands, 150Gd(4) is found to be super-rigid in nature having J0 value larger than that observed from the measured Qt value.

  10. Education and Identity Conflict Among Cree Indian Youth: A Preliminary Report, Annex 3.

    ERIC Educational Resources Information Center

    Wintrob, Ronald M.; Sindell, Peter S.

    The purpose of this document is to report on the ways in which formal education of Cree Indian youths influences the development of their psychological identities. The sample for the study was comprised of 109 adolescent Cree Indians from the Mistassini and Waswanipi bands located in north central Quebec. These youths attended elementary and high…

  11. Identity

    ERIC Educational Resources Information Center

    Ransom, Liz

    2012-01-01

    The National Association of Hispanic Journalists tracks the presence of Latinos in the news. It reports that news stories in which Latinos are the subject most often concern immigration, poverty and crime. And Hollywood does no better in reflecting the broad reality of Latino life. Latino characters are often portrayed as poor and uneducated. In…

  12. Search for superdeformed bands in {sup 154}Dy

    SciTech Connect

    Nisius, D.; Janssens, R.V.F.; Khoo, T.L.

    1995-08-01

    The island of superdeformation in the vicinity of the doubly magic {sup 152}Dy yrast superdeformed (SD) band is thought to be well understood in the framework of cranked mean field calculations. In particular, the calculations suggested that in {sup 154}Dy there should be no yrast or near yrast SD minimum in the 40-60 h spin range, where SD bands in this mass region are thought to be {sup 153}Dy nucleus, it is populated. However, with the presence of five SD bands in the neighboring necessary to ascertain if the addition of one single neutron diminishes the importance of shell effects to the extent that superdeformation can no longer be sustained. In an experiment utilizing the increased resolving power of the early implementation phase of Gammasphere, the reaction {sup 122}Sn({sup 36}S,4n) at 165 MeV was employed to populate high spin states in {sup 154}Dy. In a four-day run with 36 detectors, over one billion triple and higher fold coincidence events were recorded. One new SD band was identified and was assigned to {sup 154}Dy. From comparisons with the Im{sup (2)} moments of inertia of the SD bands in {sup 152}Dy and {sup 153}Dy, a configuration based on (514)9/2{sup 2} neutrons coupled to the {sup 152}Dy SD core was proposed. One unexpected and as yet unexplained feature of this new SD band is that the transition energies are almost identical to those of an excited SD band in {sup 153}Dy. It is also worth noting that the feeding of the yrast states is similar to that achieved by the deexcitation from the ensemble of all entry states in the reaction. This observation emphasizes the statistical nature of the decay-out process. A paper reporting these results was accepted for publication.

  13. Exploring Asian American racial identity.

    PubMed

    Chen, Grace A; Lephuoc, Paul; Guzmán, Michele R; Rude, Stephanie S; Dodd, Barbara G

    2006-07-01

    In this study the authors used cluster analysis to create racial identity profiles for a sample of Asian Americans using the People of Color Racial Identity Attitudes Scale (PCRIAS). A four-cluster solution was chosen: each cluster corresponded to one PCRIAS subscale and was named accordingly. Scores on the Asian American Racism-Related Stress Inventory and the Color-Blind Racial Attitudes Scale were compared across clusters. As expected, the Dissonance and Immersion clusters were characterized by relatively high racism-related stress and low levels of color-blind attitudes; the Conformity cluster showed roughly the opposite pattern. Surprisingly, the Internalization cluster showed a pattern similar to that for Conformity and thus may reflect "pseudoindependence" as discussed by Helms.

  14. Variational identities and Hamiltonian structures

    SciTech Connect

    Ma Wenxiu

    2010-03-08

    This report is concerned with Hamiltonian structures of classical and super soliton hierarchies. In the classical case, basic tools are variational identities associated with continuous and discrete matrix spectral problems, targeted to soliton equations derived from zero curvature equations over general Lie algebras, both semisimple and non-semisimple. In the super case, a supertrace identity is presented for constructing Hamiltonian structures of super soliton equations associated with Lie superalgebras. We illustrate the general theories by the KdV hierarchy, the Volterra lattice hierarchy, the super AKNS hierarchy, and two hierarchies of dark KdV equations and dark Volterra lattices. The resulting Hamiltonian structures show the commutativity of each hierarchy discussed and thus the existence of infinitely many commuting symmetries and conservation laws.

  15. [Voice and identity in transsexuality].

    PubMed

    Pérez Alvarez, J C

    2011-08-01

    For the self-acceptance and social approval of transsexuals in their new identity, the voice plays a very important role. The responsibility of the phoniatrician and voice therapist is to identify in advance what type of voice change options are possible. These can either be achieved by more conservative means or through operative procedures. Whether to undergo speech therapy or perform a laryngeal surgical intervention should be discussed with the patient and determined on an individual basis.

  16. Vasospastic Angina in Identical Twins

    PubMed Central

    Yoshioka, Takayuki; Otsui, Kazunori; Suzuki, Atsushi; Ozawa, Toru; Iwata, Sachiyo; Takei, Asumi; Inoue, Nobutaka

    2015-01-01

    Patient: Male, 58 Final Diagnosis: Vasospastic angina Symptoms: Chest pain Medication: — Clinical Procedure: Medical treatment Specialty: Cardiology Objective: Rare disease Background: The clinical conditions of various diseases, including coronary artery disease, are determined by genetics and the environment. Previous investigations noted the significance of genetic mutations and polymorphisms in cases of coronary spasm. Case Report: We report on monozygotic identical twins who almost simultaneously presented with vasospastic angina. The 58-year-old younger twin was admitted to our hospital because of persistent chest pain. An electrocardiogram showed an inverted T wave in the left precordial leads. Coronary angiographies revealed a short left main trunk (LMT) and 50% stenosis at the proximal portion of the left anterior descending artery (LAD). Infusion of acetylcholine to his left coronary artery caused marked vasoconstriction associated with a sensation of chest oppression. Nitroglycerine completely reversed this response. Based on these findings, we diagnosed Twin A with vasospastic angina. At nearly the same time, his identical twin brother was diagnosed with vasospastic angina at another hospital. Comparison of both coronary angiograms indicated similar structure of coronary vessels, including short LMT and mild stenosis at the proximal portion of LAD. Conclusions: These 2 cases highlight the importance of genetic factors in the pathogenesis of vasospastic angina. It may be important for individuals to receive medical attention if their identical twin presents with vasospastic angina. PMID:26347942

  17. M1 bands and intruder bands in {sup 113}In

    SciTech Connect

    Chakrawarthy, R.S.; Pillay, R.G.

    1997-01-01

    High spin states in {sup 113}In have been established up to 6.2 MeV in excitation energy and to a tentative spin of (43/2{sup {minus}}) through the reaction {sup 110}Pd({sup 7}Li, 4n){sup 113}In at a beam energy of 40 MeV. In-beam measurements involved {gamma}-{gamma} coincidences, angular distribution of emitted gamma rays, and directional correlation of oriented states. M1 bands consisting of {Delta}I=1 dipole transitions have been observed. Possible quasiparticle configurations suggest that these bands are similar to the shears bands observed in Pb nuclei. Two intruder bands based on the {pi}h{sub 11/2} orbital and {pi}g{sub 7/2} orbital have been observed. Results of the total Routhian surface and cranked shell model calculations are compared with the experimental data. Alignment features of the intruder bands in the N=62 and 64 isotones are discussed. {copyright} {ital 1997} {ital The American Physical Society}

  18. Studies of proteinograms in dermatophytes by disc electrophoresis. 1. Protein bands in relation to growth phase

    NASA Technical Reports Server (NTRS)

    Danev, P.; Friedrich, E.; Balabanov, V.

    1983-01-01

    Homogenates were prepared from various growth phases of Microsporum gypseum grown on different amino acids as the nitrogen source. When analyzed on 7.5% polyacrylamide disc gels, the water-soluble proteins in these homogenates gave essentially identical banding patterns.

  19. Band offsets and band bending at heterovalent semiconductor interfaces

    NASA Astrophysics Data System (ADS)

    Frey, A.; Bass, U.; Mahapatra, S.; Schumacher, C.; Geurts, J.; Brunner, K.

    2010-11-01

    We present a comprehensive study of band offsets and band bending at heterovalent semiconductor heterointerfaces. A perfectly abrupt heterovalent interface is usually thermodynamically unstable, and atomic intermixing of materials with different numbers of valence electrons causes large variations in band offsets and local doping density, depending on the spatial arrangement of atoms at the interface. The studied prototypical II-VI/III-V semiconductor interfaces are n -doped ZnSe/GaAs (001) heterostructures with varied composition profiles close to the interface, which were realized by molecular-beam epitaxy with different amounts of Zn or Se predeposited on n -GaAs prior to n -ZnSe layer growth. The samples are characterized by temperature-dependent electrical transport across the interface, electrochemical capacitance-voltage profiling, Raman spectroscopy, and high-resolution x-ray diffraction. We find that the potential barrier in the conduction band at a Zn-rich n -ZnSe/ n -GaAs interface is as high as 550 meV and it gradually decreases with Se predeposition down to about 70 meV. A large depletion region at the heterointerface, about 50 nm wide, is assigned to significant intermixing of acceptor-type atoms, resulting in an effective electron deficit of 1.5×1013cm-2 . The depletion width and the acceptor density around the interface are nearly independent from the growth start procedure. Se predeposition, however, partially shifts the depletion region at the heterointerface from GaAs into ZnSe, compared to Zn predeposition. The results are discussed on the basis of a band-bending model accounting for variable band offsets, interface state density and atomic interdiffusion profiles depending on growth start.

  20. Single-Band and Dual-Band Infrared Detectors

    NASA Technical Reports Server (NTRS)

    Ting, David Z. (Inventor); Gunapala, Sarath D. (Inventor); Soibel, Alexander (Inventor); Nguyen, Jean (Inventor); Khoshakhlagh, Arezou (Inventor)

    2015-01-01

    Bias-switchable dual-band infrared detectors and methods of manufacturing such detectors are provided. The infrared detectors are based on a back-to-back heterojunction diode design, where the detector structure consists of, sequentially, a top contact layer, a unipolar hole barrier layer, an absorber layer, a unipolar electron barrier, a second absorber, a second unipolar hole barrier, and a bottom contact layer. In addition, by substantially reducing the width of one of the absorber layers, a single-band infrared detector can also be formed.

  1. Direct band gap carbon superlattices with efficient optical transition

    NASA Astrophysics Data System (ADS)

    Oh, Young Jun; Kim, Sunghyun; Lee, In-Ho; Lee, Jooyoung; Chang, K. J.

    2016-02-01

    We report pure carbon-based superlattices that exhibit direct band gaps and excellent optical absorption and emission properties at the threshold energy. The structures are nearly identical to that of cubic diamond except that defective layers characterized by five- and seven-membered rings are intercalated in the diamond lattice. The direct band gaps lie in the range of 5.6-5.9 eV, corresponding to wavelengths of 210-221 nm. The dipole matrix elements of direct optical transition are comparable to that of GaN, suggesting that the superlattices are promising materials as an efficient deep ultraviolet light emitter. Molecular dynamics simulations show that the superlattices are thermally stable even at a high temperature of 2000 K. We provide a possible route to the synthesis of superlattices through wafer bonding of diamond (100) surfaces.

  2. William Band at Yenching University

    NASA Astrophysics Data System (ADS)

    Hu, Danian

    2008-04-01

    William Band (1906-1993) has been widely remembered by his American colleagues and students as ``a fine physicist and teacher,'' who taught at Washington State University in Pullman between 1949 and 1971 and authored Introduction to Quantum Statistics (1954) and Introduction to Mathematical Physics (1959). Not many, however, knew much about Band's early career, which was very ``uncommon and eventful.'' Born in England, Band graduated from University of Liverpool in 1927 with an MsSc degree in physics. Instead of pursuing his Ph.D. at Cambridge, he chose to teach physics at Yenching University, a prestigious Christian university in Beijing, China. Arriving in 1929, Band established his career at Yenching, where he taught and researched the theory of relativity and quantum mechanics, pioneered the study on low-temperature superconductivity in China, founded the country's first graduate program in physics, and chaired the Physics Department for 10 years until he fled from Yenching upon hearing of the attack on Pearl Harbor. It took him two years to cross Japanese occupied areas under the escort of the Communist force; he left China in early 1945. This presentation will explore Band's motivation to work in China and his contributions to the Chinese physics research and education.

  3. Ka-band study: 1988

    NASA Technical Reports Server (NTRS)

    Layland, J. W.; Horttor, R. L.; Clauss, R. C.; Wilcher, J. H.; Wallace, R. J.; Mudgway, D. J.

    1989-01-01

    The Ka-band study team was chartered in late 1987 to bring together all the planning elements for establishing 32 GHz (Ka-band) as the primary downlink frequency for deep-space operation, and to provide a stable baseline from which to pursue that development. This article summarizes the results of that study at its conclusion in mid-1988, and corresponds to material presented to NASA's Office of Space Operations on July 14, 1988. For a variety of reasons, Ka-band is the right next major step in deep-space communications. It offers improved radio metric accuracy through reduced plasma sensitivity and increased bandwidth. Because of these improvements, it offers the opportunity to reduce costs in the flight radio system or in the DSN by allocating part of the overall benefits of Ka-band to this cost reduction. A mission scenario is being planned that can drive at least two and possibly all three of the DSN subnets to provide a Ka-band downlink capability by the turn of the century. The implementation scenario devised by the study team is believed to be feasible within reasonable resource expectations, and capable of providing the needed upgrade as a natural follow-on to the technology development which is already underway.

  4. Positional Identity and Science Teacher Professional Development

    ERIC Educational Resources Information Center

    Moore, Felicia M.

    2008-01-01

    The aim of this study was to understand the positional identity of three African American secondary science teachers. Positional identity was operationally defined in terms of race, ethnicity, economic status, gender, religion, and age. Positional identity was posited to inform why diverse teachers with differing knowledge and experiences in…

  5. American Indians' Construction of Cultural Identity.

    ERIC Educational Resources Information Center

    Glatzmaier, Luann; Myers, Monique; Bordogna, Melissa A.

    This paper examines how American Indians construct and describe their own cultural identities. In particular, it focuses on cultural group identity from the perspective of three American Indians living in an urban setting, and on the ways that cultural identity can be communicated and enacted. Two American Indian women and one American Indian man,…

  6. 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…

  7. A multidimensional approach to homosexual identity.

    PubMed

    Horowitz, J L; Newcomb, M D

    2001-01-01

    The existing developmental stage models of homosexual identity do not consider the diversity of human sexual experience. The stage models stem from an essentialist perspective, in which the process of homosexual identity formation is largely a matter of becoming aware of one's underlying, or real, sexual orientation. Once homosexual orientation is identified, the only legitimate outcome is to develop homosexual identity and eventually incorporate that identity as one aspect of the total self. In this paper, we are concerned with those people for whom the stage models are inadequate in describing their experience of sexual identity development. The social constructionist perspective holds that the process of identity formation is a continual, two-way interactive process between the individual and the social environment, and that the meanings the individual gives to these factors influence the development of self-constructs and identity. Sexual identity develops within this contextual framework and, because it is influenced by continual interaction, is fluid over time and experience, throughout one's life. Our model does not rely on the existing developmental models of homosexual identity; rather, our model looks at desire, behavior, and identity as three separate constructs related to sexual identity. We posit that from the social constructionist viewpoint, there is in fact no true endpoint to sexual identity development. PMID:12013570

  8. Identities, Social Representations and Critical Thinking

    ERIC Educational Resources Information Center

    Lopez-Facal, Ramon; Jimenez-Aleixandre, Maria Pilar

    2009-01-01

    This comment on L. Simonneaux and J. Simonneaux paper focuses on the role of "identities" in dealing with socio-scientific issues. We argue that there are two types of identities (social representations) influencing the students' positions: On the one hand their social representations of the bears' and wolves' identities as belonging to particular…

  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, 2013 CFR

    2013-01-01

    ... 7 Agriculture 7 2013-01-01 2013-01-01 false Identity preservation. 782.14 Section 782.14... § 782.14 Identity preservation. (a) The importer and all subsequent buyers of the imported wheat shall preserve the identity of the Canadian-produced wheat. (b) Canadian-produced wheat may only be...

  11. 40 CFR 725.85 - Microorganism identity.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 32 2013-07-01 2013-07-01 false Microorganism identity. 725.85 Section... to Information § 725.85 Microorganism identity. (a) Claims applicable to the period prior to... specific microorganism identity at the time of submission of the information. This claim will apply only...

  12. 21 CFR 610.14 - Identity.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 7 2013-04-01 2013-04-01 false Identity. 610.14 Section 610.14 Food and Drugs... BIOLOGICAL PRODUCTS STANDARDS General Provisions § 610.14 Identity. The contents of a final container of each filling of each lot shall be tested for identity after all labeling operations shall have been...

  13. 21 CFR 610.14 - Identity.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 7 2011-04-01 2010-04-01 true Identity. 610.14 Section 610.14 Food and Drugs FOOD... BIOLOGICAL PRODUCTS STANDARDS General Provisions § 610.14 Identity. The contents of a final container of each filling of each lot shall be tested for identity after all labeling operations shall have been...

  14. 21 CFR 610.14 - Identity.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 7 2014-04-01 2014-04-01 false Identity. 610.14 Section 610.14 Food and Drugs... BIOLOGICAL PRODUCTS STANDARDS General Provisions § 610.14 Identity. The contents of a final container of each filling of each lot shall be tested for identity after all labeling operations shall have been...

  15. 40 CFR 725.85 - Microorganism identity.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 31 2014-07-01 2014-07-01 false Microorganism identity. 725.85 Section... to Information § 725.85 Microorganism identity. (a) Claims applicable to the period prior to... specific microorganism identity at the time of submission of the information. This claim will apply only...

  16. 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…

  17. 40 CFR 725.85 - Microorganism identity.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 30 2010-07-01 2010-07-01 false Microorganism identity. 725.85 Section... to Information § 725.85 Microorganism identity. (a) Claims applicable to the period prior to... specific microorganism identity at the time of submission of the information. This claim will apply only...

  18. 21 CFR 701.11 - Identity labeling.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 7 2010-04-01 2010-04-01 false Identity labeling. 701.11 Section 701.11 Food and... COSMETIC LABELING Package Form § 701.11 Identity labeling. (a) The principal display panel of a cosmetic in package form shall bear as one of its principal features a statement of the identity of the commodity....

  19. 7 CFR 782.14 - Identity preservation.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 7 2010-01-01 2010-01-01 false Identity preservation. 782.14 Section 782.14... § 782.14 Identity preservation. (a) The importer and all subsequent buyers of the imported wheat shall preserve the identity of the Canadian-produced wheat. (b) Canadian-produced wheat may only be...

  20. 21 CFR 610.14 - Identity.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 7 2010-04-01 2010-04-01 false Identity. 610.14 Section 610.14 Food and Drugs... BIOLOGICAL PRODUCTS STANDARDS General Provisions § 610.14 Identity. The contents of a final container of each filling of each lot shall be tested for identity after all labeling operations shall have been...

  1. 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…

  2. Pre-Service Teacher Cultural Identity Development

    ERIC Educational Resources Information Center

    Cunningham, Maurella Louise

    2013-01-01

    The main purpose of this study is to conduct exploratory qualitative research to investigate how PSTs and practicing teachers experience cultural and racial identity development or changes in identity. Rather than examine the "what" or contributors to identity development, I will explore the "how" or processes of identity…

  3. 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.

  4. 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…

  5. Foreign Language Teaching and Cultural Identity.

    ERIC Educational Resources Information Center

    Nasr, Raja T., Ed.; And Others

    A collection of works on the role of cultural identity in second language learning and teaching includes: "Linguas estrangeiras e ideologia" (Roberto Ballalai); "Cultural Identity and Bilinguality" (Josiane F. Hamers, Michel Blanc); "Foreign Language Teaching and Cultural Identity" (Lakshmie K. Cumaranatunge); "Ensino de linguas estrangeiras e…

  6. Dehistoricized Cultural Identity and Cultural Othering

    ERIC Educational Resources Information Center

    Weiguo, Qu

    2013-01-01

    The assumption that each culture has its own distinctive identity has been generally accepted in the discussion of cultural identities. Quite often identity formation is not perceived as a dynamic and interactive ongoing process that engages other cultures and involves change in its responses to different challenges at different times. I will…

  7. Racial and Ethnic Identities in American Society.

    ERIC Educational Resources Information Center

    Yin, Robert K.

    The investigation of race relations, of social problems related to race and ethnicity, and of different racial and social groups, all presume prior information about the definition of racial or ethnic group identity, about the formation, maintenance, and dissolution of such identities, and about the importance of such identities in American…

  8. Synchronization of two identical and non-identical Rulkov models

    NASA Astrophysics Data System (ADS)

    Sun, Huijing; Cao, Hongjun

    2016-11-01

    In this paper, the synchronization of two chaotic Rulkov map-based neurons is taken into account. Firstly, based on the master stability function (MSF) analysis, the complete synchronization of two electrical coupled chaotic Rulkov neurons is investigated in detail. The two-dimensional parameter-space plot that displays directly the values of the MSF in different colors is numerically obtained. The numerical values of the MSF show that the two electrical coupled Rulkov neurons are likely to achieve the complete synchronization when each single neuron is in a silent state or a period-1 bursting state, while are unable to reach the complete synchronous state when each single neuron is in a chaotic bursting state or a spiking state. Secondly, Pearson's correlation coefficient is employed to measure the synchronization degree, which demonstrates the nonexistence of the complete synchronization for non-identical electrical coupled Rulkov neurons. Importantly, the complete synchronization can not be reached with the increase of the electrical coupling strength, which is different from the continuous-time neuronal models. Finally, based on the active control method, a synchronization scheme is presented to study the complete synchronization for two Rulkov neurons no matter whether they are identical or not. The scheme is also applied to investigate the anticipated synchronization and the lag synchronization for any two Rulkov neurons. Numerical simulations verify the correctness of our analytical results and the effectiveness of our methods.

  9. [Dyssocial identity disorder (double identity) in psychopathology and poetry].

    PubMed

    Tölle, R

    1996-01-01

    Identity dissociation signifies: there seem to exist two identities in one personality that take turns-apparently without knowing about each other. Descriptions of this rare state are often spectacular. As scientifically proven they depend on culturally specific conditions and iatrogeneous influences. The disorder is to be analysed in this article for the case of both psychiatry and every-day-life-experiences in a matter-of-fact way. The first description of the phenomenon is not found in psychiatric literature but in poetry. The novellas of E.T.A. Hoffmann contain at least eight descriptions of 'double life'. The 'Fräulein von Scuderi' (1820) seems to be the most interesting of these and is therefore focused on in this article. E.T.A. Hoffmann himself was at the same time well respected jurist and significant artist of great versatility: poet as well as musician, composer, painter. Hoffmann's artistic and his civic life stood in sharp contrast, which gives reason to use of the term 'double life'.

  10. Spins of superdeformed band in {sup 192}Hg

    SciTech Connect

    Lauritsen, T.; Khoo, T.L.; Henry, R.G.

    1995-08-01

    Determination of the spins of SD states is the most important challenge in the study of superdeformation. Knowledge of the spin will provide crucial information on SD bands, in particular on the fascinating phenomenon of bands with identical energies and moments of inertia. Angular distribution coefficients of the {gamma}rays decaying out of the {sup 192}Hg SD band were determined using Eurogam data. These coefficients, as well as the spectral shape and multiplicity of the spectrum, are compared with the results of calculations, thereby providing a check on these calculations. From the measured decay multiplicity and the calculated average spin removed per photon (0.3 h), we deduce the average spin {bar I}{sub decay} removed by the {gamma} rays connecting SD and normal states. The spin I{sub SD} of the SD band from which the decay occurs is given by I{sub SD} = {bar I} decay + {bar I} ND, where {bar I} ND is the average spin removed by the normal yrast states. The state from which the major decay out of the SD band occurs is found to have spin 9.5 {plus_minus} 0.8 h. Since angular momentum is (quantized), this leads to a spin assignment of 9 or 10 h. The latter value is favored since the yrast band in the SD well must have only even spin values. This constitutes the first deduction of spin from data in the mass 150 and 190 regions. The spin of 10 h agrees with the spin which is inferred from a model, using the observed moment of inertia (Im){sup (2)}{omega}.

  11. Practicing Identity: A Crafty Ideal?

    NASA Astrophysics Data System (ADS)

    Brysbaert, A.; Vetters, M.

    This paper focuses on the materialization of technological practices as a form of identity expression. Contextual analyses of a Mycenaean workshop area in the Late Bronze Age citadel of Tiryns (Argolis, Greece) are presented to investigate the interaction of different artisans under changing socio-political and economic circumstances. The case study indicates that although certain technological practices are often linked to specific crafts, they do not necessarily imply the separation of job tasks related to the working of one specific material versus another. Shared technological practices and activities, therefore, may be a factor in shaping cohesive group identities of specialized artisans. Since tracing artisans' identities is easier said than done on the basis of excavated materials alone, we employ the concepts of multiple chaînes opératoires combined with cross-craft interactions as a methodology in order to retrieve distinctive sets of both social and technological practices from the archaeological remains. These methodological concepts are not restricted to a specific set of steps in the production cycle, but ideally encompass reconstructing contexts of extraction, manufacture, distribution and discard/reuse for a range of artefacts. Therefore, these concepts reveal both technological practices, and, by contextualising these technological practices in their spatial layout, equally focus on social contacts that would have taken place during any of these actions. Our detailed contextual study demonstrates that the material remains when analysed in their entirety are complementary to textual evidence. In this case study they even form a source of information on palatial spheres of life about which the fragmentary Linear B texts, so far, remain silent.

  12. Dipole-allowed direct band gap silicon superlattices

    NASA Astrophysics Data System (ADS)

    Oh, Young Jun; Lee, In-Ho; Kim, Sunghyun; Lee, Jooyoung; Chang, Kee Joo

    2015-12-01

    Silicon is the most popular material used in electronic devices. However, its poor optical properties owing to its indirect band gap nature limit its usage in optoelectronic devices. Here we present the discovery of super-stable pure-silicon superlattice structures that can serve as promising materials for solar cell applications and can lead to the realization of pure Si-based optoelectronic devices. The structures are almost identical to that of bulk Si except that defective layers are intercalated in the diamond lattice. The superlattices exhibit dipole-allowed direct band gaps as well as indirect band gaps, providing ideal conditions for the investigation of a direct-to-indirect band gap transition. The fact that almost all structural portions of the superlattices originate from bulk Si warrants their stability and good lattice matching with bulk Si. Through first-principles molecular dynamics simulations, we confirmed their thermal stability and propose a possible method to synthesize the defective layer through wafer bonding.

  13. Dipole-allowed direct band gap silicon superlattices

    PubMed Central

    Oh, Young Jun; Lee, In-Ho; Kim, Sunghyun; Lee, Jooyoung; Chang, Kee Joo

    2015-01-01

    Silicon is the most popular material used in electronic devices. However, its poor optical properties owing to its indirect band gap nature limit its usage in optoelectronic devices. Here we present the discovery of super-stable pure-silicon superlattice structures that can serve as promising materials for solar cell applications and can lead to the realization of pure Si-based optoelectronic devices. The structures are almost identical to that of bulk Si except that defective layers are intercalated in the diamond lattice. The superlattices exhibit dipole-allowed direct band gaps as well as indirect band gaps, providing ideal conditions for the investigation of a direct-to-indirect band gap transition. The fact that almost all structural portions of the superlattices originate from bulk Si warrants their stability and good lattice matching with bulk Si. Through first-principles molecular dynamics simulations, we confirmed their thermal stability and propose a possible method to synthesize the defective layer through wafer bonding. PMID:26656482

  14. [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.

  15. Direct band gap silicon allotropes.

    PubMed

    Wang, Qianqian; Xu, Bo; Sun, Jian; Liu, Hanyu; Zhao, Zhisheng; Yu, Dongli; Fan, Changzeng; He, Julong

    2014-07-16

    Elemental silicon has a large impact on the economy of the modern world and is of fundamental importance in the technological field, particularly in solar cell industry. The great demand of society for new clean energy and the shortcomings of the current silicon solar cells are calling for new materials that can make full use of the solar power. In this paper, six metastable allotropes of silicon with direct or quasidirect band gaps of 0.39-1.25 eV are predicted by ab initio calculations at ambient pressure. Five of them possess band gaps within the optimal range for high converting efficiency from solar energy to electric power and also have better optical properties than the Si-I phase. These Si structures with different band gaps could be applied to multiple p-n junction photovoltaic modules.

  16. Band structures in 99Rh

    NASA Astrophysics Data System (ADS)

    Kumar, S.; Singh, V.; Singh, K.; Sihotra, S.; Singh, N.; Goswamy, J.; Malik, S. S.; Ragnarsson, I.; Trivedi, T.; Singh, R. P.; Muralithar, S.; Kumar, R.; Bhowmik, R. K.; Palit, R.; Bharti, A.; Mehta, D.

    2014-10-01

    Excited states in the 99Rh nucleus were populated using the fusion-evaporation reaction 75As(28Si,2p2n) at {{E}_{lab}}=120\\;MeV and the de-excitations were investigated through in-beam γ-ray spectroscopic techniques using the INGA spectrometer consisting of 18 clover detectors. The observed band structures are discussed in the framework of tilted axis cranking shell-model calculations. Level structures at low energies are identified as resulting from the rotational bands based on the \\pi {{p}_{1/2}} and \\pi {{g}_{9/2}} configurations. The \\Delta I = 1 coupled bands are observed at higher excitation energies and have been interpreted as based on the \\pi {{g}_{9/2}}\\otimes \

  17. A reward band study of mallards to estimate band reporting rates

    USGS Publications Warehouse

    Henny, C.J.; Burnham, K.P.

    1976-01-01

    Reward bands ($10) were placed on 2,122 hatching-year mallards (Anas platyrhynchos), and an additional 11,490 received conventional bands (controls) to estimate band reporting rates. An analysis of band recoveries indicated that the reporting rate was dependent primarily upon three factors: (1) the distance banded birds were recovered from the banding site, (2) band collecting activities of conservation agencies (usually near banding sites), and ( 3) the intensity of banding effort in the region (frequency of banded birds in the population of the region). Reporting rates were uniformly depressed near the banding sites, but they showed an east-west cline at distances greater than 80 km from the banding sites. The reporting rate was highest in the west. Limited data on historical band reporting rates were compiled. Recommendations are given for adjusting band recoveries to account for the nonreporting of bands for 1957-73.

  18. Corporate visual identity: a case in hospitals.

    PubMed

    Alkibay, Sanem; Ozdogan, F Bahar; Ermec, Aysegul

    2007-01-01

    This paper aims to present a perspective to better understand corporate identity through examining the perceptions of Turkish patients and develop a corporate visual identity scale. While there is no study related to corporate identity research on hospitals in Turkey as a developing country, understanding consumer's perceptions about corporate identity efforts of hospitals could provide different perspectives for recruiters. When the hospitals are considered in two different groups as university and state hospitals, the priority of the characteristics of corporate visual identity may change, whereas the top five characteristics remain the same for all the hospitals.

  19. Cultural Mistrust, Ethnic Identity, Racial Identity, and Self-Esteem among Ethnically Diverse Black University Students.

    ERIC Educational Resources Information Center

    Phelps, Rosemary E.; Taylor, Janice D.; Gerard, Phyllis A.

    2001-01-01

    Examines cultural mistrust, ethnic identity, racial identity, and self-esteem among Black university students (N=160). African American students' scores were statistically different from those of African and West Indian/Caribbean students on cultural mistrust, racial identity, and ethnic identity measures. There were no statistically significant…

  20. Identities in Harmony: Gender-Work Identity Integration Moderates Frame Switching in Cognitive Processing

    ERIC Educational Resources Information Center

    Sacharin, Vera; Lee, Fiona; Gonzalez, Richard

    2009-01-01

    Professional women's identity integration--the perceived compatibility between work and gender identities--plays a role in how task or relationship information is processed. Seventy female business school students were primed with either their professional or their gender identity. Business women with higher identity integration showed an…

  1. 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…

  2. Bridging Identities and Disciplines: Advances and Challenges in Understanding Multiple Identities

    ERIC Educational Resources Information Center

    Phinney, Jean S.

    2008-01-01

    The chapters in this volume address the need for a better understanding of the development of intersecting identities over age and context. The chapters provide valuable insights into the development of identities, particularly group identities. They highlight common processes across identities, such as the role of contrast and comparison and the…

  3. New graduate identity: discursive mismatch.

    PubMed

    Hamilton, Helen

    2005-09-01

    For many new graduates the transition from nursing student to a professional in practice is marked by conflict and tension. Given that conflict may ensue from differing discursive constructions of new graduates, this article reports a review of discursive construction between new graduates from two institutions with vested interests in nursing graduates--comparing health service organisations and educational institutions in Victoria. Four discourses, common to both sets of texts and constitutive of new graduate identity were identified: these were the discourse of nursing practice; the discourse of the good nurse; the discourse of knowing and thinking; and the discourse of statute and regulation. A discourse peculiar to health service organisations only was identified as an organisational and bureaucratic discourse. This review reports the new graduate, as constructed in education texts, as a rational, independent, critically thinking and knowing care giver. In contrast, in health service organisation texts, the new graduate is constructed as a functional, efficient, organisational operative, providing a nursing service. New graduates are concluded to experience multiple discursive dissonances in their first employment which stem from differing constructions of new graduate identity within institutional discourses. If tensions experienced in the transition as discursively generated are understood, previously unthought of ways preparing and introducing nurses to the work place may ensue.

  4. Catholic identity: realized in conversation.

    PubMed

    Neale, A

    1997-01-01

    Catholic literature leaders must constantly engage the Catholic tradition, because it provides the framework for everything we do. The way they can do this is through conversation--discussion about the profound values and philosophical and theological assumptions that are at the heart of our ministry. Yet many healthcare boards and senior managers do not engage in such conversations. This is a serious omission, with potentially serious consequences. Too often mission and pastoral care values are regarded as separate from the business aspects of a healthcare organization. If we are to understand and integrate our mission into our healthcare work, this must change. The entire organization must make a commitment to foster an understanding of Catholic identity through conversation. As important as the dialogue is, some Catholic healthcare leaders let obstacles prevent them from delving into Catholic identity. They may not understand it, or they may be deterred by our cultural tendency to regard religion as personal, not part of the business realm. Some may be embarrassed, uncomfortable with abstraction, or reluctant to spend the time required. To encourage the conversation among Catholic healthcare leaders, we may take a lesson from our counterparts in Catholic education, who struggle with the same questions. A model Catholic university, where Catholic values are incorporated at all levels, may be a model for Catholic healthcare.

  5. Men, masculine identities and childbirth.

    PubMed

    Dolan, Alan; Coe, Christine

    2011-11-01

    In recent years, fathers' experiences during childbirth have attracted much research and policy interest. However, little of this work has been grounded in the first-hand accounts of men and there is a lack of theory-based research to help understand men's thoughts and practices around childbirth. This paper is based on qualitative research undertaken with first-time fathers and healthcare professionals. It draws on Connell's (1995) conceptualisation of hegemonic masculinity to explore how men construct masculine identities within the context of pregnancy and childbirth and also how healthcare professionals construct masculinity. The paper demonstrates the ways in which men can find themselves marginalised within the context of pregnancy and childbirth, but are still able to draw on identifiable markers of masculine practice which enable them to enact a masculine form congruent with dominant masculinity. It also illustrates how healthcare professionals' constructions of masculinity enable them to predict how men will behave and allow them to position men in ways that involve minimum disruption to their own practice. The paper also highlights how men's marginal status is embedded in the dynamics of the social structure, which produce and reproduce dominant masculine identities within the context of childbirth.

  6. The relationships among caregiver and adolescent identity status, identity distress and psychological adjustment.

    PubMed

    Wiley, Rachel E; Berman, Steven L

    2012-10-01

    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 children (21.7%) met DSM-IV criteria for Identity Problem. Caregiver identity commitment, significantly predicted adolescent identity distress over and above the adolescents' identity variables, while caregiver identity exploration significantly predicted adolescent psychological symptom severity. These findings and implications are discussed in further detail.

  7. Identities, social representations and critical thinking

    NASA Astrophysics Data System (ADS)

    López-Facal, Ramón; Jiménez-Aleixandre, María Pilar

    2009-09-01

    This comment on L. Simonneaux and J. Simonneaux paper focuses on the role of identities in dealing with socio-scientific issues. We argue that there are two types of identities (social representations) influencing the students' positions: On the one hand their social representations of the bears' and wolves' identities as belonging to particular countries (Slovenia versus France for bears, France and Italy for wolves), in other words, as having national identities; on the other hand representations of their own identities as belonging to the field of agricultural practitioners, and so sharing this socio-professional identity with shepherds and breeders, as opposed to ecologists. We discuss how these representations of identities influenced students' reasoning and argumentation, blocking in some cases the evaluation of evidence. Implications for developing critical thinking and for dealing with SSI in the classrooms are outlined.

  8. Gastric band migration following laparoscopic adjustable gastric banding (LAGB): two cases of endoscopic management using a gastric band cutter.

    PubMed

    Rogalski, Pawel; Hady, Hady Razak; Baniukiewicz, Andrzej; Dąbrowski, Andrzej; Kaminski, Fabian; Dadan, Jacek

    2012-06-01

    Laparoscopic adjustable gastric banding (LAGB) is one of the most frequently used minimally invasive and reversible procedures for the treatment of morbid obesity. Migration of the gastric band into the gastric lumen is a rare late complication of LAGB. Previous attempts at endoscopic removal of migrated bands have included the use of endoscopic scissors, laser ablation and argon plasma coagulation (APC). We report two cases of successful endoscopic management of gastric band migration using a gastric band cutter. PMID:23256012

  9. 47 CFR 90.531 - Band plan.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 5 2012-10-01 2012-10-01 false Band plan. 90.531 Section 90.531...-805 MHz Bands § 90.531 Band plan. This section sets forth the band plan for the 763-775 MHz and 793... and portables subject to Commission-approved regional planning committee regional plans....

  10. 47 CFR 90.531 - Band plan.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 5 2013-10-01 2013-10-01 false Band plan. 90.531 Section 90.531...-805 MHz Bands § 90.531 Band plan. This section sets forth the band plan for the 758-775 MHz and 788... and portables subject to Commission-approved regional planning committee regional plans....

  11. 47 CFR 90.531 - Band plan.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 5 2014-10-01 2014-10-01 false Band plan. 90.531 Section 90.531...-805 MHz Bands § 90.531 Band plan. This section sets forth the band plan for the 758-775 MHz and 788... and portables subject to Commission-approved regional planning committee regional plans....

  12. K-Band Latching Switches

    NASA Technical Reports Server (NTRS)

    Piotrowski, W. S.; Raue, J. E.

    1984-01-01

    Design, development, and tests are described for two single-pole-double-throw latching waveguide ferrite switches: a K-band switch in WR-42 waveguide and a Ka-band switch in WR-28 waveguide. Both switches have structurally simple junctions, mechanically interlocked without the use of bonding materials; they are impervious to the effects of thermal, shock, and vibration stresses. Ferrite material for the Ka-band switch with a proper combination of magnetic and dielectric properties was available and resulted in excellent low loss, wideband performance. The high power handling requirement of the K-band switch limited the choice of ferrite to nickel-zinc compositions with adequate magnetic properties, but with too low relative dielectric constant. The relative dielectric constant determines the junction dimensions for given frequency responses. In this case the too low value unavoidably leads to a larger than optimum junction volume, increasing the insertion loss and restricting the operating bandwidth. Efforts to overcome the materials-related difficulties through the design of a composite junction with increased effective dielectric properties efforts to modify the relative dielectric constant of nickel-zinc ferrite are examined.

  13. Curriculum Guide for Beginners Band.

    ERIC Educational Resources Information Center

    Bazar, W. Gayre

    This curriculum guide for beginners band is the product of a team of teachers, administrators, and supervisory personnel. The prime objectives in the beginning instrument class is the development of correct playing habits, with emphasis on posture, holding position, embouchure, breathing, tonguing, good tone production and intonation. Subjects…

  14. Wide band data collection system

    NASA Technical Reports Server (NTRS)

    Turkiewicz, J. M.

    1988-01-01

    The Incorporated Research Institutes for Seismology (IRIS) approached NASA Headquarters in 1986 about the need to collect data daily from seismic stations around the world as part of the Earth Observing System (EOS) mission. A typical IRIS Seismic Station generates 16 Megabytes of data per day when there is seismic activity. The Preliminary Design Parameters of the Wide Band Data Collection System are summarized.

  15. Band structure in 113Sn

    NASA Astrophysics Data System (ADS)

    Banerjee, P.; Ganguly, S.; Pradhan, M. K.; Sharma, H. P.; Muralithar, S.; Singh, R. P.; Bhowmik, R. K.

    2016-07-01

    The structure of collective bands in 113Sn, populated in the reaction 100Mo(19F,p 5 n ) at a beam energy of 105 MeV, has been studied. A new positive-parity sequence of eight states extending up to 7764.9 keV and spin (39 /2+) has been observed. The band is explained as arising from the coupling of the odd valence neutron in the g7 /2 or the d5 /2 orbital to the deformed 2p-2h proton configuration of the neighboring even-A Sn isotope. Lifetimes of six states up to an excitation energy of 9934.9 keV and spin 47 /2-belonging to a Δ I =2 intruder band have been measured for the first time, including an upper limit for the last state, from Doppler-shift-attenuation data. A moderate average quadrupole deformation β2=0.22 ±0.02 is deduced from these results for the five states up to spin 43 /2- . The transition quadrupole moments decrease with increase in rotational frequency, indicating a reduction of collectivity with spin, a feature common for terminating bands. The behavior of the kinematic and dynamic moments of inertia as a function of rotational frequency has been studied and total Routhian surface calculations have been performed in an attempt to obtain an insight into the nature of the states near termination.

  16. Broad-band beam buncher

    DOEpatents

    Goldberg, David A.; Flood, William S.; Arthur, Allan A.; Voelker, Ferdinand

    1986-01-01

    A broad-band beam buncher is disclosed, comprising an evacuated housing, an electron gun therein for producing an electron beam, a buncher cavity having entrance and exit openings through which the beam is directed, grids across such openings, a source providing a positive DC voltage between the cavity and the electron gun, a drift tube through which the electron beam travels in passing through such cavity, grids across the ends of such drift tube, gaps being provided between the drift tube grids and the entrance and exit grids, a modulator for supplying an ultrahigh frequency modulating signal to the drift tube for producing velocity modulation of the electrons in the beam, a drift space in the housing through which the velocity modulated electron beam travels and in which the beam is bunched, and a discharge opening from such drift tube and having a grid across such opening through which the bunched electron beam is discharged into an accelerator or the like. The buncher cavity and the drift tube may be arranged to constitute an extension of a coaxial transmission line which is employed to deliver the modulating signal from a signal source. The extended transmission line may be terminated in its characteristic impedance to afford a broad-band response and the device as a whole designed to effect broad-band beam coupling, so as to minimize variations of the output across the response band.

  17. Band Spectra and Molecular Structure

    NASA Astrophysics Data System (ADS)

    Kronig, R. De L.

    2011-06-01

    Introduction; Part I. The Energy Levels of Diatomic Molecules and their Classification by Means of Quantum Numbers: 1. General foundations; 2. Wave mechanics of diatomic molecules; 3. Electronic levels; 4. Vibrational levels; 5. Rotational levels; 6. Stark and Zeeman effect; 7. Energy levels of polyatomic molecules; Part II. Fine Structure and Wave Mechanical Properties of the Energy Levels of Diatomic Molecules: 8. The perturbation function; 9. Rotational distortion of spin multiplets; 10. Fine structure; 11. Perturbations and predissociation; 12. Even and odd levels; 13. Symmetrical and antisymmetrical levels; Part III. Selection Rules and Intensities in Diatomic Molecules: 14. General foundations; 15. Electronic bands; 16. Vibrational bands; 17. Rotational bands; 18. Band spectra and nuclear structure; 19. Transitions in the Stark and Zeeman effect; Part IV. Macroscopic Properties of Molecular Gases: 20. Scattering; 21. Dispersion; 22. Kerr and Faraday effect; 23. Dielectric constants; 24. Magnetic susceptibilities; 25. Specific heats; Part V. Molecule Formation and Chemical Binding: 26. Heteropolar molecules; 27. Homopolar molecules. Chemical forces between two H-atoms and two He-atoms; 28. The general theory of homopolar compounds; Bibliography; Subject index.

  18. Resistive band for turbomachine blade

    SciTech Connect

    Roberts, Herbert Chidsey; Taxacher, Glenn Curtis

    2015-08-25

    A turbomachine system includes a rotor that defines a longitudinal axis of the turbomachine system. A first blade is coupled to the rotor, and the first blade has first and second laminated plies. A first band is coupled to the first blade and is configured to resist separation of the first and second laminated plies.

  19. Best packing of identical helices

    NASA Astrophysics Data System (ADS)

    Huh, Youngsik; Hong, Kyungpyo; Kim, Hyoungjun; No, Sungjong; Oh, Seungsang

    2016-10-01

    In this paper we prove the unique existence of a ropelength-minimizing conformation of the θ-spun double helix in a mathematically rigorous way, and find the minimal ropelength {{{Rop}}}* (θ )=-\\tfrac{8π }{t} where t is the unique solution in [-θ ,0] of the equation 2-2\\cos (t+θ )={t}2. Using this result, the pitch angles of the standard, triple and quadruple helices are around 39.3771^\\circ , 42.8354^\\circ and 43.8351^\\circ , respectively, which are almost identical with the approximated pitch angles of the zero-twist structures previously known by Olsen and Bohr. We also find the ropelength of the standard N-helix.

  20. Mitochondrial Replacement: Ethics and Identity

    PubMed Central

    Wilkinson, Stephen; Appleby, John B.

    2015-01-01

    Abstract Mitochondrial replacement techniques (MRTs) have the potential to allow prospective parents who are at risk of passing on debilitating or even life‐threatening mitochondrial disorders to have healthy children to whom they are genetically related. Ethical concerns have however been raised about these techniques. This article focuses on one aspect of the ethical debate, the question of whether there is any moral difference between the two types of MRT proposed: Pronuclear Transfer (PNT) and Maternal Spindle Transfer (MST). It examines how questions of identity impact on the ethical evaluation of each technique and argues that there is an important difference between the two. PNT, it is argued, is a form of therapy based on embryo modification while MST is, instead, an instance of selective reproduction. The article's main ethical conclusion is that, in some circumstances, there is a stronger obligation to use PNT than MST. PMID:26481204

  1. Historic Cosmology Identity and Exploration

    NASA Astrophysics Data System (ADS)

    Nebergall, K.

    The role of the soul and spirit in the composition of human endeavour generally takes the form of motivational poster catch phrases or third-hand quotes. If the spirit equals the life of a creature, and one of the signs of life is locomotion, are humans not obliged by something even deeper than our humanity to explore the universe? This paper examines the roots and perspectives of our worldviews on identity, exploration, and the limitations and capacities of humanity. It will equip the reader to discuss the nature of exploration with audiences across a wide range of worldviews. Current cultures, regardless of religion or politics, are looped into a series of nihilistic patterns that must be broken by rediscovering our nature as living beings, and our obligations as human beings.

  2. Predator identity influences metacommunity assembly.

    PubMed

    Johnston, Nicole K; Pu, Zhichao; Jiang, Lin

    2016-09-01

    Predation is among the most important biotic factors influencing natural communities, yet we have a rather rudimentary understanding of its role in modulating metacommunity assembly. We experimentally examined the effects of two different predators (a generalist and a specialist) on metacommunity assembly, using protist microcosm metacommunities that varied in predator identity, dispersal among local communities and the history of species colonization into local communities. Generalist predation resulted in reduced α diversity and increased β diversity irrespective of dispersal, likely due to predation-induced stochastic extinction of different prey species in different local communities. Dispersal, however, induced source-sink dynamics in the presence of specialist predators, resulting in higher α diversity and marginally lower β diversity. These results demonstrate the distinct effects of different predators on prey metacommunity assembly, emphasizing the need to explore the role of predator diet breadth in structuring metacommunities. PMID:27349796

  3. 5f band dispersion in epitaxial films of UO2

    SciTech Connect

    Durakiewicz, Tomasz; Jia, Quanxi; Roy, Lindsay E; Martin, Richard L; Joyce, John J

    2009-01-01

    Polymer-assisted deposition of epitaxial films utilizes lattice pinning to produce films of very high stability and properties identical with bulk crystal. Dispersion of the 5f band is shown for the first time in a actinide Mott insulator system, which suggestes hybridization as a leading process in establishing the electronic structure. Hybrid density functional is succesfully employed to calculate the electronic structure of UO{sub 2} in agreement with experiments. UO{sub 2} continues to be a mysterious and elusive compound in terms of understanding the physical properties of a material. Most actinide oxides, including UO{sub 2} are predicted to be metallic. However, UO{sub 2} is an antiferromagnetic insulator with a relatively large gap of about 2eV. The f orbital charater of the excitations across the gap places UO{sub 2} in a Mott insulator category, but no states at the gap center have ever been measured directly, in spite of intensive efforts. In this work we present the first results of the electronic structure investigation of a epitaxial film of UO{sub 2}, where we find even more unexpected properties, like the dispersive nature of 5f bands. We also demonstrate the unexpected, very high stability of the epitaxial film of UO{sub 2}. In the lattice-pinning scheme, the crystalline nature of the film is preserved all the way up to the topmost layers even after prolonged exposure to atmospheric conditions. Hybridized, dispersive bands are common in the itinerant uranium compounds. One usually finds hybridization of f-orbitals with conduction band to be quite common in f-electron systems at low temperatures. Such bands may reside in the vicinity of the Fermi level and participate in the construction of the Fermi surface. However, in the insulator like UO{sub 2}, one expects a more atomic band nature, where f-bands are relatively flat and shifted away from the Fermi level by the gap energy scale. Precise location of UO{sub 2} on the localization

  4. Banding and polarity of actin filaments in interphase and cleaving cells

    PubMed Central

    1980-01-01

    Heavy meromyosin (HMM) decoration of actin filaments was used to detect the polarity of microfilaments in interphase and cleaving rat kangaroo (PtK2) cells. Ethanol at -20 degrees C was used to make the cells permeable to HMM followed by tannic acid-glutaraldehyde fixation for electron microscopy. Uniform polarity of actin filaments was observed at cell junctions and central attachment plaques with the HMM arrowheads always pointing away from the junction or plaque. Stress fibers were banded in appearance with their component microfilaments exhibiting both parallel and antiparallel orientation with respect to one another. Identical banding of microfilament bundles was also seen in cleavage furrows with the same variation in filament polarity as found in stress fibers. Similarly banded fibers were not seen outside the cleavage furrow in mitotic cells. By the time that a mid-body was present, the actin filaments in the cleavage furrow were no longer in banded fibers. The alternating dark and light bands of both the stress fibers and cleavage furrow fibers are approximately equal in length, each measuring approximately 0.16 micrometer. Actin filaments were present in both bands, and individual decorated filaments could sometimes be traced through four band lengths. Undecorated filaments, 10 nm in diameter, could often be seen within the light bands. A model is proposed to explain the arrangement of filaments in stress fibers and cleavage furrows based on the striations observed with tannic acid and the polarity of the actin filaments. PMID:6995468

  5. A narrow band pattern-matching model of vowel perception

    NASA Astrophysics Data System (ADS)

    Hillenbrand, James M.; Houde, Robert A.

    2003-02-01

    The purpose of this paper is to propose and evaluate a new model of vowel perception which assumes that vowel identity is recognized by a template-matching process involving the comparison of narrow band input spectra with a set of smoothed spectral-shape templates that are learned through ordinary exposure to speech. In the present simulation of this process, the input spectra are computed over a sufficiently long window to resolve individual harmonics of voiced speech. Prior to template creation and pattern matching, the narrow band spectra are amplitude equalized by a spectrum-level normalization process, and the information-bearing spectral peaks are enhanced by a ``flooring'' procedure that zeroes out spectral values below a threshold function consisting of a center-weighted running average of spectral amplitudes. Templates for each vowel category are created simply by averaging the narrow band spectra of like vowels spoken by a panel of talkers. In the present implementation, separate templates are used for men, women, and children. The pattern matching is implemented with a simple city-block distance measure given by the sum of the channel-by-channel differences between the narrow band input spectrum (level-equalized and floored) and each vowel template. Spectral movement is taken into account by computing the distance measure at several points throughout the course of the vowel. The input spectrum is assigned to the vowel template that results in the smallest difference accumulated over the sequence of spectral slices. The model was evaluated using a large database consisting of 12 vowels in /hVd/ context spoken by 45 men, 48 women, and 46 children. The narrow band model classified vowels in this database with a degree of accuracy (91.4%) approaching that of human listeners.

  6. Ku-band miniature modulators

    NASA Technical Reports Server (NTRS)

    Ernst, R. L.

    1973-01-01

    Ku-band microminiature modulators were designed to convert a 10 mW signal at 400 MHz to a 10 mW signal at 15 GHz. The designs incorporate gallium arsenide Schottky barrier varactors used in upper-sideband up-converters. The use of Ku-band microstrip circulators and hairpin resonator bandpass filters at 2.1 GHz and 2.5 GHz is included. The design and fabrication of a single up-conversion unit with a double up-conversion unit are compared. Various filter configurations are studies, and the use of both alumina and quartz substrates are considered. The various impedance matching networks are evaluated using computer aided design techniques.

  7. ALMA Band 5 Cartridge Performance

    NASA Astrophysics Data System (ADS)

    Billade, Bhushan; Lapkin, I.; Nystrom, O.; Sundin, E.; Fredrixon, M.; Finger, R.; Rashid, H.; Desmaris, V.; Meledin, D.; Pavolotsky, A.; Belitsky, Victor

    2010-03-01

    Work presented here concerns the design and performance of the ALMA Band 5 cold cartridge, one of the 10 frequency channels of ALMA project, a radio interferometer under construction at Atacama Desert in Chile. The Band 5 cartridge is a dual polarization receiver with the polarization separation performed by orthomode transducer (OMT). For each polarization, Band 5 receiver employs sideband rejection (2SB) scheme based on quadrature layout, with SIS mixers covering 163-211 GHz with 4-8 GHz IF. The LO injection circuitry is integrated with mixer chip and is implemented on the same substrate, resulting in a compact 2SB assembly. Amongst the other ALMA bands, the ALMA Band 5 being the lowest frequency band that uses all cold optics, has the largest mirror. Consequently, ALMA Band 5 mirror along with its support structure leaves very little room for placing OMT, mixers and IF subsystems. The constraints put by the size of cold optics and limited cartridge space, required of us to revise the original 2SB design and adopt a design where all the components like OMT, mixer, IF hybrid, isolators and IF amplifier are directly connected to each other without using any co-ax cables in-between. The IF subsystem uses the space between 4 K and 15 K stage of the cartridge and is thermally connected to 4 K stage. Avoiding co-ax cabling required use of custom designed IF hybrid, furthermore, due to limited cooling capacity at 4 K stage, resistive bias circuitry for the mixers is moved to 15 K stage and the IF hybrid along with an integrated bias-T is implemented using superconducting micro-strip lines. The E-probes for both LO and RF waveguide-to-microstrip transitions are placed perpendicular to the wave direction (back-piece configuration). The RF choke at the end of the probes provides a virtual ground for the RF/LO signal, and the choke is DC grounded to the chassis. The on-chip LO injection is done using a microstrip line directional coupler with slot-line branches in the

  8. Intermediate quantum statistics for identical objects

    SciTech Connect

    Kuryshkin, V.V.

    1988-11-01

    Methods to construct various algebras of creation and annihilation operators of physical objects in complex quantum state spaces with a nonnegative metric are proposed. All allowed algebras for the cases of identical nonrelativistic systems in the second quantization of the Schrodinger equation, of identical quanta of relativistic tensor fields, and of identical quanta of relativistic spinor fields are constructed. A comparison of the obtained algebras with the well-known algebras of this type (Fermi, Bose, para-Fermi, and superalgebras) is given.

  9. Preventing and responding to medical identity theft.

    PubMed

    Amori, Geraldine

    2008-01-01

    Medical identity theft is a crime with two victims: patients and providers. It is easy to commit and lucrative because healthcare record keeping and business interactions are complex and mainly electronic. Patients whose identity has been stolen are vulnerable to both medical error and financial loss. Providers may suffer both reputation loss and financial loss. There are steps to help prevent and to respond appropriately to medical identity theft.

  10. ASTRONOMY: Researchers Get Spectrum Bands.

    PubMed

    Taubes, G

    2000-06-23

    Radio astronomers have been in danger of losing a precious band of the electromagnetic spectrum--the millimeter wavelengths, which promise insight into subjects as diverse as the origins of life and the birth of stars--to the burgeoning telecommunications industry, as millimeter wavelengths also look promising for transmitting high-bandwidth wireless information over relatively short distances. Earlier this month, however, astronomers won an international agreement that guarantees critical wavelengths safe for research. PMID:17758893

  11. When moral identity symbolization motivates prosocial behavior: the role of recognition and moral identity internalization.

    PubMed

    Winterich, Karen Page; Aquino, Karl; Mittal, Vikas; Swartz, Richard

    2013-09-01

    This article examines the role of moral identity symbolization in motivating prosocial behaviors. We propose a 3-way interaction of moral identity symbolization, internalization, and recognition to predict prosocial behavior. When moral identity internalization is low, we hypothesize that high moral identity symbolization motivates recognized prosocial behavior due to the opportunity to present one's moral characteristics to others. In contrast, when moral identity internalization is high, prosocial behavior is motivated irrespective of the level of symbolization and recognition. Two studies provide support for this pattern examining volunteering of time. Our results provide a framework for predicting prosocial behavior by combining the 2 dimensions of moral identity with the situational factor of recognition.

  12. S-Band propagation measurements

    NASA Technical Reports Server (NTRS)

    Briskman, Robert D.

    1994-01-01

    A geosynchronous satellite system capable of providing many channels of digital audio radio service (DARS) to mobile platforms within the contiguous United States using S-band radio frequencies is being implemented. The system is designed uniquely to mitigate both multipath fading and outages from physical blockage in the transmission path by use of satellite spatial diversity in combination with radio frequency and time diversity. The system also employs a satellite orbital geometry wherein all mobile platforms in the contiguous United States have elevation angles greater than 20 deg to both of the diversity satellites. Since implementation of the satellite system will require three years, an emulation has been performed using terrestrial facilities in order to allow evaluation of DARS capabilities in advance of satellite system operations. The major objective of the emulation was to prove the feasibility of broadcasting from satellites 30 channels of CD quality programming using S-band frequencies to an automobile equipped with a small disk antenna and to obtain quantitative performance data on S-band propagation in a satellite spatial diversity system.

  13. S-Band propagation measurements

    NASA Astrophysics Data System (ADS)

    Briskman, Robert D.

    1994-08-01

    A geosynchronous satellite system capable of providing many channels of digital audio radio service (DARS) to mobile platforms within the contiguous United States using S-band radio frequencies is being implemented. The system is designed uniquely to mitigate both multipath fading and outages from physical blockage in the transmission path by use of satellite spatial diversity in combination with radio frequency and time diversity. The system also employs a satellite orbital geometry wherein all mobile platforms in the contiguous United States have elevation angles greater than 20 deg to both of the diversity satellites. Since implementation of the satellite system will require three years, an emulation has been performed using terrestrial facilities in order to allow evaluation of DARS capabilities in advance of satellite system operations. The major objective of the emulation was to prove the feasibility of broadcasting from satellites 30 channels of CD quality programming using S-band frequencies to an automobile equipped with a small disk antenna and to obtain quantitative performance data on S-band propagation in a satellite spatial diversity system.

  14. General Differential Contact Identities for Macromolecules

    NASA Astrophysics Data System (ADS)

    Landy, Jonathan; Pincus, P. A.; Jho, YongSeok

    2015-10-01

    We discuss general Maxwell identities relating a macromolecule's charge, the forces acting at its surface, and the osmotic pressure of the solution in which it sits. The identities are closely related to the contact value relations that hold for certain special geometries, but are more general. In particular, the Maxwell identities can be applied to any macromolecule geometry, and they hold both within and outside of mean-field theory. Examples illustrate that combining the identities with approximate treatments of screening can often return simple, accurate osmotic pressure estimates.

  15. An existentialist account of identity formation.

    PubMed

    Bilsker, D

    1992-06-01

    An account of James Marcia's identity formation model is given in the language of existentialist philosophy. Parallels between ego-identity and existentialist approaches are examined and identity is described in terms of existentialist concepts formulated by Martin Heidegger (Being and Time) and Jean-Paul Sartre (Being and Nothingness). While identity formation has previously been formulated in terms of ego-analytic theory, this paper argues and seeks to demonstrate that significant benefits accrue from an existentialist account. These benefits include clarification of difficult theoretical issues, delineation of specific research directions and enrichment of clinical understanding.

  16. Smoker identity development among adolescents who smoke.

    PubMed

    Hertel, Andrew W; Mermelstein, Robin J

    2016-06-01

    Adolescents who smoke are more likely to escalate their smoking frequency if they believe smoking is self-defining. Knowing factors that are associated with development of a smoker identity among adolescents who smoke may help to identify who will become a regular smoker. We investigated whether smoker identity development is associated with internal and external motives for smoking. For comparison, we also investigated whether social smoker identity development is associated with internal and external motives for smoking. Adolescents who smoke (n = 292) completed measures of smoker and social smoker identity, internal motives for smoking (negative affect coping, positive affect enhancement), and external motives for smoking (social fit) at baseline, 6-, 15-, and 24-month assessments of an ongoing longitudinal study of smoking patterns. We examined whether change in smoker and social smoker identity from 6 to 24 months was associated with change in motives at earlier assessment waves. We also explored whether gender moderated these relationships. Increases in negative affect coping motives were associated with smoker identity development among both males and females. Increases in social motives were associated with smoker identity development among males, and increases in negative affect coping motives were associated with social smoker identity development among females. Smoker and social smoker identities are signaled by negative affect coping as well as social motives for smoking. (PsycINFO Database Record PMID:27136374

  17. Smoker identity development among adolescents who smoke.

    PubMed

    Hertel, Andrew W; Mermelstein, Robin J

    2016-06-01

    Adolescents who smoke are more likely to escalate their smoking frequency if they believe smoking is self-defining. Knowing factors that are associated with development of a smoker identity among adolescents who smoke may help to identify who will become a regular smoker. We investigated whether smoker identity development is associated with internal and external motives for smoking. For comparison, we also investigated whether social smoker identity development is associated with internal and external motives for smoking. Adolescents who smoke (n = 292) completed measures of smoker and social smoker identity, internal motives for smoking (negative affect coping, positive affect enhancement), and external motives for smoking (social fit) at baseline, 6-, 15-, and 24-month assessments of an ongoing longitudinal study of smoking patterns. We examined whether change in smoker and social smoker identity from 6 to 24 months was associated with change in motives at earlier assessment waves. We also explored whether gender moderated these relationships. Increases in negative affect coping motives were associated with smoker identity development among both males and females. Increases in social motives were associated with smoker identity development among males, and increases in negative affect coping motives were associated with social smoker identity development among females. Smoker and social smoker identities are signaled by negative affect coping as well as social motives for smoking. (PsycINFO Database Record

  18. General Differential Contact Identities for Macromolecules.

    PubMed

    Landy, Jonathan; Pincus, P A; Jho, YongSeok

    2015-10-16

    We discuss general Maxwell identities relating a macromolecule's charge, the forces acting at its surface, and the osmotic pressure of the solution in which it sits. The identities are closely related to the contact value relations that hold for certain special geometries, but are more general. In particular, the Maxwell identities can be applied to any macromolecule geometry, and they hold both within and outside of mean-field theory. Examples illustrate that combining the identities with approximate treatments of screening can often return simple, accurate osmotic pressure estimates.

  19. Smoker Identity Development among Adolescents who Smoke

    PubMed Central

    Hertel, Andrew W.; Mermelstein, Robin J.

    2016-01-01

    Adolescents who smoke are more likely to escalate their smoking frequency if they believe smoking is self-defining. Knowing factors that are associated with development of a smoker identity among adolescents who smoke may help to identify who will become a regular smoker. We investigated whether smoker identity development is associated with internal and external motives for smoking. For comparison, we also investigated whether social smoker identity development is associated with internal and external motives for smoking. Adolescents who smoke (n = 292) completed measures of smoker and social smoker identity, internal motives for smoking (negative affect coping, positive affect enhancement), and external motives for smoking (social fit) at baseline, 6-, 15-, and 24-month assessments of an ongoing longitudinal study of smoking patterns. We examined whether change in smoker and social smoker identity from 6 to 24 months was associated with change in motives at earlier assessment waves. We also explored whether gender moderated these relationships. Increases in negative affect coping motives were associated with smoker identity development among both males and females. Increases in social motives were associated with smoker identity development among males, and increases in negative affect coping motives were associated with social smoker identity development among females. Smoker and social smoker identities are signaled by negative affect coping as well as social motives for smoking. PMID:27136374

  20. Identity and Introject in dissociative disorders.

    PubMed

    Alpher, V S

    1996-12-01

    The structural analysis of social behavior (SASB) shows promise for systematically examining identity issues in clinical populations. In this study, identity is assessed with the SASB in a sample of women with dissociative disorder (n = 25) and a nonpatient clinical contrast group (n = 25). The SASB Introject--a multivariate measure of identity--effectively differentiated the 2 samples. Despite greater self-directed hostility than the clinical contrast group, dissociative disorder patients showed lower levels of intrapsychic conflict. Implications for further research on identity and psychopathology are discussed.

  1. Broadband integrated band-stop filter for horn antennas based on coupled SRRs

    NASA Astrophysics Data System (ADS)

    Barbuto, Mirko; Bilotti, Filiberto; Toscano, Alessandro

    2016-06-01

    In this contribution, inspired by a common phenomenon that is well-known in circuit theory, we show a simple method to increase the bandwidth of a band-stop filter based on the use of split-ring resonators (SRRs). In particular, the basic structure of the filtering module consists of a single SRR placed inside a pyramidal horn to implement a self-filtering antenna with a notched-band behavior. In order to increase the rejected band, we placed a second identical SRR in close proximity with the previous one. If the distance between the SRRs is suitably chosen, the two resonators are properly coupled leading to a widening of the notched-band of the filtering module. The effectiveness of the proposed approach is confirmed by the results of full-wave numerical simulations.

  2. Multitude of bands in ^156Dy

    NASA Astrophysics Data System (ADS)

    Riedinger, L. L.; Hartley, D. J.; Curien, D.; Dudek, J.; Gall, B.; Allmond, M.; Beausang, C.; Carpenter, M. P.; Chiara, C. J.; Janssens, R. V. F.; Kondev, F. G.; Lauritsen, T.; McCutchan, E. A.; Stefanescu, I.; Zhu, S.; Garrett, P. E.; Kulp, W. D.; Wood, J. L.; Riley, M. A.; Wang, X. F.; Schunck, N.; Yu, C. H.; Sharpey-Schafer, J.; Majola, S.; Simpson, J.

    2009-10-01

    A Gammasphere measurement was performed on rotational bands in ^156Dy using the ^148Nd(^12C,4n) reaction at 65 MeV with the Atlas accelerator at Argonne. The projectile was chosen to populate many bands at low to medium spins. We have added new transitions and new bands to the family of negative-parity structures in this N = 90 nucleus. The lowest lying bands in this region have generally been associated with octupole vibrational modes, converting to two-quasiparticle bands at moderate frequencies. There are deviations from this picture in ^156Dy, due perhaps to the robustness of the octupole vibration through the first band crossing.

  3. An extension to flat band ferromagnetism

    NASA Astrophysics Data System (ADS)

    Gulacsi, M.; Kovacs, G.; Gulacsi, Z.

    2014-11-01

    From flat band ferromagnetism, we learned that the lowest energy half-filled flat band gives always ferromagnetism if the localized Wannier states on the flat band satisfy the connectivity condition. If the connectivity conditions are not satisfied, ferromagnetism does not appear. We show that this is not always the case namely, we show that ferromagnetism due to flat bands can appear even if the connectivity condition does not hold due to a peculiar behavior of the band situated just above the flat band.

  4. Asymmetric band profile of the Soret band of deoxymyoglobin is caused by electronic and vibronic perturbations of the heme group rather than by a doming deformation

    NASA Astrophysics Data System (ADS)

    Schweitzer-Stenner, Reinhard; Gorden, John Paul; Hagarman, Andrew

    2007-10-01

    We measured the Soret band of deoxymyoglobin (deoxyMb), myoglobin cyanide (MbCN), and aquo-metmyoglobin (all from horse heart) with absorption and circular dichroism (CD) spectroscopies. A clear non-coincidence was observed between the absorption and CD profiles of deoxyMb and MbCN, with the CD profiles red- and blueshifted with respect to the absorption band position, respectively. On the contrary, the CD and absorption profiles of aquametMb were nearly identical. The observed noncoincidence indicates a splitting of the excited B state due to heme-protein interactions. CD and absorption profiles of deoxyMb and MbCN were self-consistently analyzed by employing a perturbation approach for weak vibronic coupling as well as the relative intensities and depolarization ratios of seven bands in the respective resonance Raman spectra measured with B-band excitation. The respective By component was found to dominate the observed Cotton effect of both myoglobin derivatives. The different signs of the noncoincidences between CD and absorption bands observed for deoxyMb and MbCN are due to different signs of the respective matrix elements of A1g electronic interstate coupling, which reflects an imbalance of Gouterman's 50:50 states. The splitting of the B band reflects contributions from electronic and vibronic perturbations of B1g symmetry. The results of our analysis suggest that the broad and asymmetric absorption band of deoxyMb results from this band splitting rather than from its dependence on heme doming. Thus, we are able to explain recent findings that the temperature dependences of CO rebinding to myoglobin and the Soret band profile are uncorrelated[Ormos et al., Proc. Natl. Acad. Sci U.S.A. 95, 6762 (1998)].

  5. Cracks and extrusions caused by persistent slip bands

    NASA Astrophysics Data System (ADS)

    Brown, L. M.

    2013-09-01

    Cottrell's account of persistent slip poses a puzzle which has challenged all subsequent research. Persistent slip bands (PSB) endure repeated plastic shear which constantly produces narrower and narrower dipoles, as observed by Veyssière. At the same time, because narrow interstitial dipoles have a larger elastic energy than otherwise identical vacancy ones, shear will eject larger interstitial dipoles to the surface, whilst retaining smaller vacancy ones in the interior, thereby producing excess vacancy loops. This causes a longitudinal tensile stress (the 'fibre stress') inside the band. The ejection process lowers the energy by a term linear in the fibre stress, but increases it by a term quadratic in the fibre stress, giving rise to an equilibrium value of the fibre stress, tensile, in order-of-magnitude agreement with observations of extrusions at low temperatures, where only plasticity can occur. The fibre stress produces logarithmic infinities in the surface stress at the edges of the PSB, and thus can be responsible for sharp stage I fatigue cracks. At higher temperatures which allow pipe diffusion and/or volume diffusion, interstitial loops are drawn by the tensile fibre stress into the PSB. Then, as cyclic plasticity attempts to maintain equilibrium, the loops are ejected where the band meets the surface, producing growing extrusions. Such extrusions can grow almost without limit. At low temperatures, the rate of extrusion formation is maximal at one Burgers vector per cycle, but it will be slower than this if it is diffusion limited.

  6. Frequency bands of strongly nonlinear homogeneous granular systems.

    PubMed

    Lydon, Joseph; Jayaprakash, K R; Ngo, Duc; Starosvetsky, Yuli; Vakakis, Alexander F; Daraio, Chiara

    2013-07-01

    Recent numerical studies on an infinite number of identical spherical beads in Hertzian contact showed the presence of frequency bands [Jayaprakash, Starosvetsky, Vakakis, Peeters, and Kerschen, Nonlinear Dyn. 63, 359 (2011)]. These bands, denoted here as propagation and attenuation bands (PBs and ABs), are typically present in linear or weakly nonlinear periodic media; however, their counterparts are not intuitive in essentially nonlinear periodic media where there is a complete lack of classical linear acoustics, i.e., in "sonic vacua." Here, we study the effects of PBs and ABs on the forced dynamics of ordered, uncompressed granular systems. Through numerical and experimental techniques, we find that the dynamics of these systems depends critically on the frequency and amplitude of the applied harmonic excitation. For fixed forcing amplitude, at lower frequencies, the oscillations are large in amplitude and governed by strongly nonlinear and nonsmooth dynamics, indicating PB behavior. At higher frequencies the dynamics is weakly nonlinear and smooth, in the form of compressed low-amplitude oscillations, indicating AB behavior. At the boundary between the PB and the AB large-amplitude oscillations due to resonance occur, giving rise to collisions between beads and chaotic dynamics; this renders the forced dynamics sensitive to initial and forcing conditions, and hence unpredictable. Finally, we study asymptotically the near field standing wave dynamics occurring for high frequencies, well inside the AB. PMID:23944453

  7. 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.

  8. Becoming Music-Making Music Teachers: Connecting Music Making, Identity, Wellbeing, and Teaching for Four Student Teachers

    ERIC Educational Resources Information Center

    Pellegrino, Kristen

    2015-01-01

    The purpose of this descriptive case study was to examine the developing music teacher identity of four student music teachers by exploring the meanings of music making and the intersections of music making and teaching. Participants all had dual student teaching placements: elementary general music and secondary band. Data were generated through…

  9. Fingerprint recognition with identical twin fingerprints.

    PubMed

    Tao, Xunqiang; Chen, Xinjian; Yang, Xin; Tian, Jie

    2012-01-01

    Fingerprint recognition with identical twins is a challenging task due to the closest genetics-based relationship existing in the identical twins. Several pioneers have analyzed the similarity between twins' fingerprints. In this work we continue to investigate the topic of the similarity of identical twin fingerprints. Our study was tested based on a large identical twin fingerprint database that contains 83 twin pairs, 4 fingers per individual and six impressions per finger: 3984 (83*2*4*6) images. Compared to the previous work, our contributions are summarized as follows: (1) Two state-of-the-art fingerprint identification methods: P071 and VeriFinger 6.1 were used, rather than one fingerprint identification method in previous studies. (2) Six impressions per finger were captured, rather than just one impression, which makes the genuine distribution of matching scores more realistic. (3) A larger sample (83 pairs) was collected. (4) A novel statistical analysis, which aims at showing the probability distribution of the fingerprint types for the corresponding fingers of identical twins which have same fingerprint type, has been conducted. (5) A novel analysis, which aims at showing which finger from identical twins has higher probability of having same fingerprint type, has been conducted. Our results showed that: (a) A state-of-the-art automatic fingerprint verification system can distinguish identical twins without drastic degradation in performance. (b) The chance that the fingerprints have the same type from identical twins is 0.7440, comparing to 0.3215 from non-identical twins. (c) For the corresponding fingers of identical twins which have same fingerprint type, the probability distribution of five major fingerprint types is similar to the probability distribution for all the fingers' fingerprint type. (d) For each of four fingers of identical twins, the probability of having same fingerprint type is similar. PMID:22558204

  10. Changing institutional identities of the student nurse.

    PubMed

    Brennan, Damien; Timmins, Fiona

    2012-10-01

    This paper emphasises the tensions between the ideal of the compliant within care settings and the ideal of the critical thinker within the university setting with reference to student nurse education and identity. Identity is an important part of who we are as people. While modernisation and increased professionalisation of nursing have impacted on staff and patients mostly in a positive way, changes in the management of nursing education in the past 20 years have also heralded a remarkable change in the student identity. Historically informed by association with a particular hospital or health service provider, student nurse identity was shaped by institutional rituals and routine, physically embodied in objects such as uniforms and hospital medals and informed by claims to honesty, virtue and personal integrity (Bradby, 1990). Once part of the structure and fabric of hospital life, nursing students functioned as part of the health care service. As such, their identity was synonymous with that of practicing nurses, whose learning needs were secondary to that of the organisational needs. While this social milieu provided the platform for the formation of institutional pride, belonging and identity, such forms of identity can result in institutional compliance; with the associated risk of ritualistic practice, poor levels of transparent accountability and barriers to whistle blowing should substandard practice arise. Increased student freedom and an emphasis on teaching and learning within the university setting may have benefitted students, patients and the profession, however, the potential impact on student identity is less certain. There is evidence to suggest that students are ill-equipped for their professional identity once qualified and thus require more support for this within universities. This paper explores the tensions between traditional hospital identity and contemporary university identity with reference to student nurse education. The ideal of the

  11. Fingerprint recognition with identical twin fingerprints.

    PubMed

    Tao, Xunqiang; Chen, Xinjian; Yang, Xin; Tian, Jie

    2012-01-01

    Fingerprint recognition with identical twins is a challenging task due to the closest genetics-based relationship existing in the identical twins. Several pioneers have analyzed the similarity between twins' fingerprints. In this work we continue to investigate the topic of the similarity of identical twin fingerprints. Our study was tested based on a large identical twin fingerprint database that contains 83 twin pairs, 4 fingers per individual and six impressions per finger: 3984 (83*2*4*6) images. Compared to the previous work, our contributions are summarized as follows: (1) Two state-of-the-art fingerprint identification methods: P071 and VeriFinger 6.1 were used, rather than one fingerprint identification method in previous studies. (2) Six impressions per finger were captured, rather than just one impression, which makes the genuine distribution of matching scores more realistic. (3) A larger sample (83 pairs) was collected. (4) A novel statistical analysis, which aims at showing the probability distribution of the fingerprint types for the corresponding fingers of identical twins which have same fingerprint type, has been conducted. (5) A novel analysis, which aims at showing which finger from identical twins has higher probability of having same fingerprint type, has been conducted. Our results showed that: (a) A state-of-the-art automatic fingerprint verification system can distinguish identical twins without drastic degradation in performance. (b) The chance that the fingerprints have the same type from identical twins is 0.7440, comparing to 0.3215 from non-identical twins. (c) For the corresponding fingers of identical twins which have same fingerprint type, the probability distribution of five major fingerprint types is similar to the probability distribution for all the fingers' fingerprint type. (d) For each of four fingers of identical twins, the probability of having same fingerprint type is similar.

  12. Changing institutional identities of the student nurse.

    PubMed

    Brennan, Damien; Timmins, Fiona

    2012-10-01

    This paper emphasises the tensions between the ideal of the compliant within care settings and the ideal of the critical thinker within the university setting with reference to student nurse education and identity. Identity is an important part of who we are as people. While modernisation and increased professionalisation of nursing have impacted on staff and patients mostly in a positive way, changes in the management of nursing education in the past 20 years have also heralded a remarkable change in the student identity. Historically informed by association with a particular hospital or health service provider, student nurse identity was shaped by institutional rituals and routine, physically embodied in objects such as uniforms and hospital medals and informed by claims to honesty, virtue and personal integrity (Bradby, 1990). Once part of the structure and fabric of hospital life, nursing students functioned as part of the health care service. As such, their identity was synonymous with that of practicing nurses, whose learning needs were secondary to that of the organisational needs. While this social milieu provided the platform for the formation of institutional pride, belonging and identity, such forms of identity can result in institutional compliance; with the associated risk of ritualistic practice, poor levels of transparent accountability and barriers to whistle blowing should substandard practice arise. Increased student freedom and an emphasis on teaching and learning within the university setting may have benefitted students, patients and the profession, however, the potential impact on student identity is less certain. There is evidence to suggest that students are ill-equipped for their professional identity once qualified and thus require more support for this within universities. This paper explores the tensions between traditional hospital identity and contemporary university identity with reference to student nurse education. The ideal of the

  13. Exploring the Relationships between Racial/Cultural Identity and Ego Identity among African Americans and Mexican Americans.

    ERIC Educational Resources Information Center

    Miville, Marie L.; Koonce, Danel; Darlington, Pat; Whitlock, Brian

    2000-01-01

    Relationships between collective identity and ego identity were examined among 229 African American and Mexican American university students. Participants completed scales measuring racial or cultural identity and ego identity. Regression analyses indicated that ego identity was significantly related to racial identity for African Americans and…

  14. Identity: empirical contribution. Changes in the identity integration of adolescents in treatment for personality disorders.

    PubMed

    Feenstra, Dine J; Hutsebaut, Joost; Verheul, Roel; van Limbeek, Jacques

    2014-02-01

    A renewed interest in identity as one of the core markers of personality disorders has been introduced by the DSM-5 Level of Personality Functioning Scale. However, little is known about the utility of the construct of identity in children and adolescents. This study aimed to broaden the knowledge of identity integration as a core component of personality functioning in adolescents. The authors investigated levels of identity integration, as measured by the Severity Indices of Personality Problems (SIPP-118; Verheul et al., 2008), in adolescents in both normal (n = 406) and clinical populations (n = 285). Furthermore, changes in levels of identity integration during treatment were investigated in a clinical subsample (n = 76). Levels of identity integration were not associated with age. They were, however, associated with the absence or presence of personality pathology. Most adolescents receiving inpatient psychotherapy gradually changed toward more healthy levels of identity integration; a significant number, however, remained at maladaptive levels of identity functioning after intensive psychotherapy.

  15. 7 CFR 782.14 - Identity preservation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... § 782.14 Identity preservation. (a) The importer and all subsequent buyers of the imported wheat shall preserve the identity of the Canadian-produced wheat. (b) Canadian-produced wheat may only be commingled with U.S.-produced wheat by the end user, or when loaded onto a conveyance for direct delivery to...

  16. 7 CFR 782.14 - Identity preservation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... § 782.14 Identity preservation. (a) The importer and all subsequent buyers of the imported wheat shall preserve the identity of the Canadian-produced wheat. (b) Canadian-produced wheat may only be commingled with U.S.-produced wheat by the end user, or when loaded onto a conveyance for direct delivery to...

  17. 7 CFR 782.14 - Identity preservation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... § 782.14 Identity preservation. (a) The importer and all subsequent buyers of the imported wheat shall preserve the identity of the Canadian-produced wheat. (b) Canadian-produced wheat may only be commingled with U.S.-produced wheat by the end user, or when loaded onto a conveyance for direct delivery to...

  18. Reconsidering Graduate Employability: The "Graduate Identity" Approach.

    ERIC Educational Resources Information Center

    Holmes, Len

    2001-01-01

    Elaborates a cogent alternative to the skills agenda as an approach to graduate employability--the graduate identity approach. Using a conceptual and theoretical examination of the key notion of performance, presents the twin concepts of practices and identity as significant for understanding human behavior. Offers suggestions for curriculum…

  19. Semiotics of Identity: Politics and Education

    ERIC Educational Resources Information Center

    Szkudlarek, Tomasz

    2011-01-01

    In this text I concentrate on semiotic aspects of the theory of political identity in the work of Ernesto Laclau, and especially on the connection between metaphors, metonymies, catachreses and synecdoches. Those tropes are of ontological status, and therefore they are of key importance in understanding the discursive "production" of identity in…

  20. Family Influences on College Students' Occupational Identity

    ERIC Educational Resources Information Center

    Berrios-Allison, Ana C.

    2005-01-01

    The occupational identity statuses of 232 college students were analyzed by examining their family emotional environment and the identity control processes that drive career decision making. Results of multivariate analysis showed that each family differentiation construct, family tolerance for connectedness, and separateness explained significant…

  1. Predictive Validity of the Vocational Identity Scale.

    ERIC Educational Resources Information Center

    Savickas, Mark L.

    To establish that measures of vocational identity are sensitive to variations in development, researchers need to demonstrate that different patterns of scores on these measures predict subsequent coping with later tasks of vocational development. This study investigated the ability of the Vocational Identity Scale (VIS) to predict coping with a…

  2. Interculturalism and the Pendulum of Identity

    ERIC Educational Resources Information Center

    Svirsky, Marcelo; Mor-Sommerfeld, Aura

    2012-01-01

    This article offers a critical appraisal of the role played by cultural identity in intercultural bilingual Arabic-Hebrew schools in Israel. While engineered as oases of interculturalism amidst a life of ethnic segregation, such schools ultimately confront serious difficulties in escaping the constraints of identity politics and representation.…

  3. 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…

  4. Intercultural Allusion in Transcultural Identity Narratives

    ERIC Educational Resources Information Center

    Sell, Jonathan P. A.

    2004-01-01

    This paper attempts to provide a theoretical framework for the use of intercultural allusion in narratives of transcultural identity. Identity is taken to be narrative in performance, one element of which, intercultural allusion, serves pragmatically to broker the transcultured subject's insertion into the host culture. The paper then shows how…

  5. I Alumnus: Understanding Early Alumni Identity

    ERIC Educational Resources Information Center

    Pung, Barnaby

    2013-01-01

    This dissertation sought to provide a better understanding of early alumnus identity at a public Midwestern university. Unlike a majority of alumni studies, this study used a qualitative case study methodology to examine alumni identity among participants through the use of personal interviews. Participants were 10-11 years post graduation from…

  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. Speaking of Gender Identity: Theoretical Approaches.

    ERIC Educational Resources Information Center

    Freedman, Susan A.

    Various definitions of gender identity have ranged from recognition of one's biological sex to an individual's sense of masculinity or femininity. For the purpose of this paper, which examines some of the theoretical approaches to the subject, gender identity will be defined as "the degree to which individuals are 'aware' of and accept their…

  8. Exploring Relationships between Teacher Identities and Disciplinarity

    ERIC Educational Resources Information Center

    Ballantyne, Julie; Grootenboer, Peter

    2012-01-01

    The relationships between discipline specialization, teacher identity, and pedagogy can be seen as the crux of practice in the music classroom--impacting on all the actions of the teacher, both within and outside the classroom. Crucially, the impact of music teacher identity on the nature of music teaching and learning is one that has the…

  9. Displayed Objects, Indigenous Identities, and Public Pedagogy

    ERIC Educational Resources Information Center

    Trofanenko, Brenda

    2006-01-01

    In this article, I describe how one group of student examines indigenous identity formation as dynamic and open to reinterpretation. Drawing on field observations and interviews with students in a 16-month ethnographic study, I examine how one group of students worked toward understanding how indigenous identity was determined by curatorial…

  10. 21 CFR 610.14 - Identity.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 7 2012-04-01 2012-04-01 false Identity. 610.14 Section 610.14 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) BIOLOGICS GENERAL BIOLOGICAL PRODUCTS STANDARDS General Provisions § 610.14 Identity. The contents of a final container of...

  11. Moral identity and emotion in athletes.

    PubMed

    Kavussanu, Maria; Willoughby, Adrian; Ring, Christopher

    2012-12-01

    The purpose of this study was to investigate the effects of moral identity on physiological responses to affective pictures, namely, the startle blink reflex and pain-related evoked potential. Male (n = 48) and female (n = 46) athletes participating in contact team sports were randomly assigned to either a moral identity group or a non-moral identity group and viewed a series of unpleasant, neutral, and pleasant sport-specific pictures. During picture viewing, a noxious electrocutaneous stimulus was delivered as the startle probe and the startle blink and pain-related evoked potential were measured. Upon completion of physiological measures, participants reviewed the pictures and rated them for valence and arousal. ANOVAs revealed that participants in the moral identity group displayed larger startle blinks and smaller pain-related potentials than did those in the non-moral identity group across all picture valence categories. However, the difference in the magnitude of startle blinks between the moral and non-moral identity groups was larger in response to unpleasant than pleasant and neutral pictures. Our findings suggest that moral identity affects physiological responses to sport-specific affective pictures, thereby providing objective evidence for the link between moral identity and emotion in athletes.

  12. Asexuality and autochorissexualism (identity-less sexuality).

    PubMed

    Bogaert, Anthony F

    2012-12-01

    I present evidence that target-oriented paraphilias may occur in some who report no sexual attraction for others or those who identify as asexual. One target-oriented paraphilia in some asexual people is a disconnection between their identity and a sexual target/object. I name this phenomenon autochorissexualism or "identity-less" sexuality.

  13. Interculturalities: Reframing Identities in Intercultural Communication

    ERIC Educational Resources Information Center

    Nair-Venugopal, Shanta

    2009-01-01

    This paper attempts to reframe identities as "interculturalities" in the multimodal ways in which language is used for identity construction, specifically as responses to questionnaires, articulations within limited narratives, on-line interactions and in community ways of speaking a localised variety of English. Relying on a framework of analysis…

  14. Citizenship Education and National Identity: Teaching Ambivalence

    ERIC Educational Resources Information Center

    Ljunggren, Carsten

    2014-01-01

    The article is concerned with issues of national identity in a multicultural society (Sweden) and the role of citizenship education in creating a national identity. After having witnessed the terrorist attack and the traumas from Oslo and Utøya (22 July 2011), and the suicide bombing in Stockholm on 11 December 2010, certain words, such as…

  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. 21 CFR 701.11 - Identity labeling.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) COSMETICS COSMETIC LABELING Package Form § 701.11 Identity labeling. (a) The principal display panel of a cosmetic in...) Such statement of identity shall be in terms of: (1) The common or usual name of the cosmetic; or...

  17. 21 CFR 701.11 - Identity labeling.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) COSMETICS COSMETIC LABELING Package Form § 701.11 Identity labeling. (a) The principal display panel of a cosmetic in...) Such statement of identity shall be in terms of: (1) The common or usual name of the cosmetic; or...

  18. 21 CFR 701.11 - Identity labeling.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) COSMETICS COSMETIC LABELING Package Form § 701.11 Identity labeling. (a) The principal display panel of a cosmetic in...) Such statement of identity shall be in terms of: (1) The common or usual name of the cosmetic; or...

  19. 21 CFR 701.11 - Identity labeling.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) COSMETICS COSMETIC LABELING Package Form § 701.11 Identity labeling. (a) The principal display panel of a cosmetic in...) Such statement of identity shall be in terms of: (1) The common or usual name of the cosmetic; or...

  20. Identity Development in Adolescents Living with HIV

    ERIC Educational Resources Information Center

    Hosek, Sybil G.; Harper, Gary W.; Robinson, W. LaVome

    2002-01-01

    The purpose of this project was to qualitatively explore how identity formation may be affected by the presence of HIV disease. Eight HIV-infected adolescents (three males, five females), aged 17-21, participated in a semi-structured interview that combined measures of identity development with open-ended, qualitative questions aimed at eliciting…

  1. 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…

  2. 40 CFR 720.85 - Chemical identity.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 31 2011-07-01 2011-07-01 false Chemical identity. 720.85 Section 720... PREMANUFACTURE NOTIFICATION Confidentiality and Public Access to Information § 720.85 Chemical identity. (a... submits information to EPA under this part may assert a claim of confidentiality for the chemical...

  3. 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…

  4. 40 CFR 720.85 - Chemical identity.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 32 2013-07-01 2013-07-01 false Chemical identity. 720.85 Section 720... PREMANUFACTURE NOTIFICATION Confidentiality and Public Access to Information § 720.85 Chemical identity. (a... submits information to EPA under this part may assert a claim of confidentiality for the chemical...

  5. 40 CFR 720.85 - Chemical identity.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 31 2014-07-01 2014-07-01 false Chemical identity. 720.85 Section 720... PREMANUFACTURE NOTIFICATION Confidentiality and Public Access to Information § 720.85 Chemical identity. (a... submits information to EPA under this part may assert a claim of confidentiality for the chemical...

  6. 40 CFR 720.85 - Chemical identity.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 32 2012-07-01 2012-07-01 false Chemical identity. 720.85 Section 720... PREMANUFACTURE NOTIFICATION Confidentiality and Public Access to Information § 720.85 Chemical identity. (a... submits information to EPA under this part may assert a claim of confidentiality for the chemical...

  7. 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.…

  8. Development of Deaf Identity: An Ethnographic Study

    ERIC Educational Resources Information Center

    McIlroy, Guy; Storbeck, Claudine

    2011-01-01

    This ethnographic study explores the identity development of 9 deaf participants through the narratives of their educational experiences in either mainstream or special schools for the Deaf. This exploration goes beyond a binary conceptualization of deaf identity that allows for only the medical and social models and proposes a bicultural…

  9. The crisis of 'identity' in high modernity.

    PubMed

    Bendle, Mervyn F

    2002-03-01

    The concept of 'identity' is central to much contemporary sociology, reflecting a crisis that manifests itself in two ways. Firstly, there is a view that identity is both vital and problematic in this period of high modernity. Secondly, while this awareness is reflected in sociology, its accounts of identity are inconsistent, under-theorized and incapable of bearing the analytical load required. As a result, there is an inherent contradiction between a valuing of identity as so fundamental as to be crucial to personal well-being, and a theorization of 'identity' that sees it as something constructed, fluid, multiple, impermanent and fragmentary. The contemporary crisis of identity thus expresses itself as both a crisis of society, and a crisis of theory. This paper explores the diverse ways in which 'identity' is deployed before turning to case-studies of its use by Anthony Giddens and Manuel Castells. This strategy demonstrates the widespread and diverse concern with identity before exploring how problematic it has become, even in the work of two of the world's leading sociologists.

  10. Young Women Online: Collaboratively Constructing Identities

    ERIC Educational Resources Information Center

    Paechter, Carrie

    2013-01-01

    In this paper I examine how young women construct their identities with others in online communities. I argue that the proliferation of social networking and its popularity among young people means that performed identities are increasingly collaboratively constructed, with the individual having less control over their public image than was…

  11. 40 CFR 720.85 - Chemical identity.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 30 2010-07-01 2010-07-01 false Chemical identity. 720.85 Section 720... PREMANUFACTURE NOTIFICATION Confidentiality and Public Access to Information § 720.85 Chemical identity. (a... submits information to EPA under this part may assert a claim of confidentiality for the chemical...

  12. High School Teachers' Identities: Constructing Civic Selves

    ERIC Educational Resources Information Center

    Obenchain, Kathryn M.; Balkute, Asta; Vaughn, Erin; White, Shannon

    2016-01-01

    Research suggests that teachers play a role in the type of citizenship education implemented in schools. The purpose of this qualitative case study was to explore how two high school teachers understood and enacted their civic identities as a dimension of their teacher identities. Findings suggest that factors contributing to an individual's civic…

  13. Profiling Teachers' Sense of Professional Identity

    ERIC Educational Resources Information Center

    Canrinus, Esther T.; Helms-Lorenz, Michelle; Beijaard, Douwe; Buitink, Jaap; Hofman, Adriaan

    2011-01-01

    This study shows that professional identity should not be viewed as a composed variable with a uniform structure. Based on the literature and previous research, we view teachers' job satisfaction, self-efficacy, occupational commitment and change in the level of motivation as indicators of teachers' professional identity. Using two-step cluster…

  14. 40 CFR 725.85 - Microorganism identity.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 31 2011-07-01 2011-07-01 false Microorganism identity. 725.85 Section... ACT REPORTING REQUIREMENTS AND REVIEW PROCESSES FOR MICROORGANISMS Confidentiality and Public Access to Information § 725.85 Microorganism identity. (a) Claims applicable to the period prior...

  15. Improving Measurement of Workplace Sexual Identity Management

    ERIC Educational Resources Information Center

    Lance, Teresa S.; Anderson, Mary Z.; Croteau, James M.

    2010-01-01

    The purpose of this study was to advance measurement of sexual identity management for lesbian, gay, and bisexual workers. Psychometric properties of a revised version of the Workplace Sexual Identity Management Measure (WSIMM; Anderson, Croteau, Chung, & DiStefano, 2001) were examined on a sample of 64 predominantly White K-12 teachers.…

  16. Shifting Selves: Constructing and Negotiating Academic Identities

    ERIC Educational Resources Information Center

    Vandeyar, S.

    2010-01-01

    This study set out to explore how academics construct and negotiate their identities within the world of the academe. Identity construction involves different forms of community participation and identification. Utilising the research methodology of narrative inquiry, this article explores how academics came to see themselves across those…

  17. Identity, Language Learning, and Social Change

    ERIC Educational Resources Information Center

    Norton, Bonny; Toohey, Kelleen

    2011-01-01

    In this review article on identity, language learning, and social change, we argue that contemporary poststructuralist theories of language, identity, and power offer new perspectives on language learning and teaching, and have been of considerable interest in our field. We first review poststructuralist theories of language, subjectivity, and…

  18. Measuring Identity Processes in Family Relational Empowerment

    ERIC Educational Resources Information Center

    Buckley-Walker, Kellie; Crowe, Trevor Patrick; Caputi, Peter

    2013-01-01

    This paper outlines a procedure for measuring personal identity that uses self-characterisations to elicit and integrate ideographic data for fixed construct repertory grid nomothetic applications. There is a focus on how family members view their personal identities when they are recovering from the impacts of having a "loved one" with a mental…

  19. 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…

  20. Iranian Validation of the Identity Style Inventory

    ERIC Educational Resources Information Center

    Crocetti, Elisabetta; Shokri, Omid

    2010-01-01

    The purpose of this study was to validate the Iranian version of the Identity Style Inventory (ISI). Participants were 376 (42% males) university students. Confirmatory factor analyses revealed a clear three-factor structure of identity style and a mono-factor structure of commitment in the overall sample as well as in gender subgroups. Convergent…

  1. 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…

  2. Identity as a Source of Moral Motivation

    ERIC Educational Resources Information Center

    Hardy, Sam A.; Carlo, Gustavo

    2005-01-01

    Theory and research regarding moral motivation has focused for decades on the roles of moral reasoning and, to some extent, moral emotion. Recently, however, several models of morality have positioned identity as an additional important source of moral motivation. An individual has a moral identity to the extent that he or she has constructed his…

  3. Identity Development and Mentoring in Doctoral Education

    ERIC Educational Resources Information Center

    Hall, Leigh A.; Burns, Leslie D.

    2009-01-01

    In this essay, Leigh Hall and Leslie Burns use theories of identity to understand mentoring relationships between faculty members and doctoral students who are being prepared as educational researchers. They suggest that becoming a professional researcher requires students to negotiate new identities and reconceptualize themselves both as people…

  4. 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…

  5. 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…

  6. Identity theft prevention in the healthcare setting.

    PubMed

    Warren, Bryan

    2005-01-01

    How a healthcare security department has undertaken a program to prevent employees, patients, and visitors from becoming victims of Identity Theft as well as providing help for victims of this crime in mitigating their losses. An Identity Theft affidavit for ID theft victims is illustrated.

  7. 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.…

  8. Music and Identity Formation in Older Adults

    ERIC Educational Resources Information Center

    Dabback, William M.

    2010-01-01

    For many individuals, engagement with the arts and music in later life plays a significant role in identity formation. Research indicates that music engagement facilitates successful aging. While participants may or may not establish identities as musicians, musical activities provide interactions and opportunities that facilitate their…

  9. Patriotic Acts: Five Activities for Identity Building

    ERIC Educational Resources Information Center

    Soetoro-Ng, Maya

    2013-01-01

    Building a personal identity is a lifelong, thoughtful process that takes into account not only one's race and ethnicity, but also life experiences, relationships, and communities. The process of exploring and evolving one's identity deserves a place in the classroom. Educators can play a key role in supporting their students' in this process by…

  10. Elderly Identity in Conversation: Producing Frailty.

    ERIC Educational Resources Information Center

    Taylor, Bryan C.

    1992-01-01

    Investigates conversation between elderly individuals and college students as the arena for assembling, displaying, and negotiating an elderly identity of frailty. Finds that frailty is one frame through which the experience and identities of aging persons may be defined. Finds that interpersonal strategies may ameliorate or aggravate the tension…

  11. Orchestrating the Band: A New Direction.

    ERIC Educational Resources Information Center

    Mairs, David

    2000-01-01

    Contends that marching bands should explore the classical repertoire of the symphony orchestra. Discusses three reasons why the audience and students enjoy this type of music. Includes a list of classical music that has worked for bands. (CMK)

  12. Miniature L-Band Radar Transceiver

    NASA Technical Reports Server (NTRS)

    McWatters, Dalia; Price, Douglas; Edelstein, Wendy

    2007-01-01

    A miniature L-band transceiver that operates at a carrier frequency of 1.25 GHz has been developed as part of a generic radar electronics module (REM) that would constitute one unit in an array of many identical units in a very-large-aperture phased-array antenna. NASA and the Department of Defense are considering the deployment of such antennas in outer space; the underlying principles of operation, and some of those of design, also are applicable on Earth. The large dimensions of the antennas make it advantageous to distribute radio-frequency electronic circuitry into elements of the arrays. The design of the REM is intended to implement the distribution. The design also reflects a requirement to minimize the size and weight of the circuitry in order to minimize the weight of any such antenna. Other requirements include making the transceiver robust and radiation-hard and minimizing power demand. Figure 1 depicts the functional blocks of the REM, including the L-band transceiver. The key functions of the REM include signal generation, frequency translation, amplification, detection, handling of data, and radar control and timing. An arbitrary-waveform generator that includes logic circuitry and a digital-to-analog converter (DAC) generates a linear-frequency-modulation chirp waveform. A frequency synthesizer produces local-oscillator signals used for frequency conversion and clock signals for the arbitrary-waveform generator, for a digitizer [that is, an analog-to-digital converter (ADC)], and for a control and timing unit. Digital functions include command, timing, telemetry, filtering, and high-rate framing and serialization of data for a high-speed scientific-data interface. The aforementioned digital implementation of filtering is a key feature of the REM architecture. Digital filters, in contradistinction to analog ones, provide consistent and temperature-independent performance, which is particularly important when REMs are distributed throughout a large

  13. Dual Identity as a Two-Edged Sword: Identity Threat and Minority School Performance

    ERIC Educational Resources Information Center

    Baysu, Gulseli; Phalet, Karen; Brown, Rupert

    2011-01-01

    Some members of ethnic minority groups respond to identity threat in ways that are detrimental to their school career, while others persist despite an unwelcoming school environment. It was hypothesized that ethnic and national identities, as combined in "separated," "assimilated," or "dual identity" strategies, moderate consequences of identity…

  14. The Identity Game: Constructing and Enabling Multicultural Identities in a Finland-Swedish School Setting

    ERIC Educational Resources Information Center

    Forsman, Liselott; Hummelstedt-Djedou, Ida

    2014-01-01

    This study, building on previous studies stressing the bond between positive sense of ethnic identity and school belonging, puts at its center the very process of ethnic identity construction. Thus, identity is viewed as co-constructed, within a social-constructionist perspective on learning. The study is two-folded. It starts out by describing…

  15. Korean Adoptee Identity: Adoptive and Ethnic Identity Profiles of Adopted Korean Americans

    ERIC Educational Resources Information Center

    Beaupre, Adam J.; Reichwald, Reed; Zhou, Xiang; Raleigh, Elizabeth; Lee, Richard M.

    2015-01-01

    Adopted Korean adolescents face the task of grappling with their identity as Koreans and coming to terms with their adoptive status. In order to explore these dual identities, the authors conducted a person-centered study of the identity profiles of 189 adopted Korean American adolescents. Using cluster analytic procedures, the study examined…

  16. Ethnic Identity, Bicultural Identity Integration, and Psychological Well-Being among Transracial Adoptees: A Longitudinal Study

    ERIC Educational Resources Information Center

    Ferrari, Laura; Rosnati, Rosa; Manzi, Claudia; Benet-Martínez, Verònica

    2015-01-01

    The ethnic identity development plays a crucial role in adolescence and emerging adulthood and may be more complex for adoptees who do not share their ethnic identity with their adoptive families. Evidence from the studies was mixed, with strong ethnic identity not always found to be indicative of improved psychological adjustment. Recently…

  17. Thoughts on the nature of identity: disorders of sex development and gender identity.

    PubMed

    Reiner, William G; Reiner, D Townsend

    2011-10-01

    Children with disorders of sex development have similarities to, but also marked contrasts with, children with normal anatomy but who have gender dysphoria. Understanding gender identity development in children with sex disorders will probably help us understand typical gender identity development more than in understanding gender development in children with gender identity disorder.

  18. Relations of Work Identity, Family Identity, Situational Demands, and Sex with Employee Work Hours

    ERIC Educational Resources Information Center

    Greenhaus, Jeffrey H.; Peng, Ann C.; Allen, Tammy D.

    2012-01-01

    This study examined relations of multiple indicators of work identity and family identity with the number of weekly hours worked by 193 married business professionals. We found that men generally worked long hours regardless of the situational demands to work long hours and the strength of their work and family identities. Women's work hours, on…

  19. Rotational Bands in 11B

    NASA Astrophysics Data System (ADS)

    Demyanova, A. S.; Danilov, A. N.; Dmitriev, S. V.; Ogloblin, A. A.; Belyaeva, T. L.; Goncharov, S. A.; Gurov, Yu. B.; Maslov, V. A.; Sobolev, Yu. G.; Trzaska, W.; Heikkinen, P.; Julin, R.; Khlebnikov, S. V.; Tyurin, G. P.; Burtebaev, N.; Zholdybayev, T.

    2015-06-01

    Differential cross-sections of the 11B + α inelastic scattering at E(α) = 65 leading to the most of the known 11B states at the excitation energies up to 14 MeV were measured. The data analysis was done by DWBA and in some cases by the modified diffraction model allowing determining the radii of the excited states. The radii of the states with excitation energies less than ~ 7 MeV with the accuracy not less than 0.1-0.15 fm coincide with the radius of the ground state. This result is consistent with the traditional view of the shell structure of the low-lying states in 11B. Most of the observed high-energy excited states are distributed among four rotational bands. The moments of inertia of band states are close to the moment of inertia of the Hoyle state of 12C. The calculated radii, related to these bands, are 0.7 - 1.0 fm larger than the radius of the ground state, and are close to the radius of the Hoyle state. These results are in agreement with existing predictions about various cluster structure of 11B at high excitation energies. The state with the excitation energy 12.56 MeV, Iπ = 1/2+, T = 1/2 and the root mean square radius R ~ 6 fm predicted in the frame of the alpha condensate hypothesis was not found. The observed level at 12.6 MeV really has T = 1/2, probably, Iπ = 3/2+ and the radius close to that of the ground state.

  20. Parallel LC circuit model for multi-band absorption and preliminary design of radiative cooling.

    PubMed

    Feng, Rui; Qiu, Jun; Liu, Linhua; Ding, Weiqiang; Chen, Lixue

    2014-12-15

    We perform a comprehensive analysis of multi-band absorption by exciting magnetic polaritons in the infrared region. According to the independent properties of the magnetic polaritons, we propose a parallel inductance and capacitance(PLC) circuit model to explain and predict the multi-band resonant absorption peaks, which is fully validated by using the multi-sized structure with identical dielectric spacing layer and the multilayer structure with the same strip width. More importantly, we present the application of the PLC circuit model to preliminarily design a radiative cooling structure realized by merging several close peaks together. This omnidirectional and polarization insensitive structure is a good candidate for radiative cooling application.

  1. Band 3 Erythrocyte Membrane Protein Acts as Redox Stress Sensor Leading to Its Phosphorylation by p72 Syk

    PubMed Central

    Pantaleo, Antonella; Ferru, Emanuela; Pau, Maria Carmina; Khadjavi, Amina; Mandili, Giorgia; Mattè, Alessandro; Spano, Alessandra; De Franceschi, Lucia; Pippia, Proto; Turrini, Francesco

    2016-01-01

    In erythrocytes, the regulation of the redox sensitive Tyr phosphorylation of band 3 and its functions are still partially defined. A role of band 3 oxidation in regulating its own phosphorylation has been previously suggested. The current study provides evidences to support this hypothesis: (i) in intact erythrocytes, at 2 mM concentration of GSH, band 3 oxidation, and phosphorylation, Syk translocation to the membrane and Syk phosphorylation responded to the same micromolar concentrations of oxidants showing identical temporal variations; (ii) the Cys residues located in the band 3 cytoplasmic domain are 20-fold more reactive than GSH; (iii) disulfide linked band 3 cytoplasmic domain docks Syk kinase; (iv) protein Tyr phosphatases are poorly inhibited at oxidant concentrations leading to massive band 3 oxidation and phosphorylation. We also observed that hemichromes binding to band 3 determined its irreversible oxidation and phosphorylation, progressive hemolysis, and serine hyperphosphorylation of different cytoskeleton proteins. Syk inhibitor suppressed the phosphorylation of band 3 also preventing serine phosphorylation changes and hemolysis. Our data suggest that band 3 acts as redox sensor regulating its own phosphorylation and that hemichromes leading to the protracted phosphorylation of band 3 may trigger a cascade of events finally leading to hemolysis. PMID:27034738

  2. 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.

  3. Identity, storytelling and the philanthropic journey

    PubMed Central

    Maclean, Mairi; Harvey, Charles; Gordon, Jillian; Shaw, Eleanor

    2015-01-01

    This article develops theoretical understanding of the involvement of wealthy entrepreneurs in socially transformative projects by offering a foundational theory of philanthropic identity narratives. We show that these narratives are structured according to the metaphorical framework of the journey, through which actors envision and make sense of personal transformation. The journey provides a valuable metaphor for conceptualizing narrative identities in entrepreneurial careers as individuals navigate different social landscapes, illuminating identities as unfolding through a process of wayfinding in response to events, transitions and turning-points. We delineate the journey from entrepreneurship to philanthropy, and propose a typology of rewards that entrepreneurs claim to derive from giving. We add to the expanding literature on narrative identities by suggesting that philanthropic identity narratives empower wealthy entrepreneurs to generate a legacy of the self that is both self- and socially oriented, these ‘generativity scripts’ propelling their capacity for action while ensuring the continuation of their journeys. PMID:26456976

  4. 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.

  5. [Is frontotemporal dementia a disease of identity?].

    PubMed

    Lebert, Florence

    2009-06-01

    Patients with frontotemporal dementia (FTD) have major behavioral troubles and a loss of insight. These factors contribute to reduce self-awareness and recognition of identify of others and by others. Autobiographical amnesia, loss of insight and executive dysfunctions are the major reasons of vulnerable "self" in FTD. Mind representation deficits, decrease of perception of emotions and semantic amnesia contribute to reduced recognition of the relative's identity. Alterations of body expressions, social disinhibition, changes in social and religious values decrease the recognition of patient's identity by the relatives. Different psychological components of identity are modified by the FTD such as feeling of unity, of consistency, of temporality and of affiliation. The fact that brain lesions of FTD are focalized can contribute to understand the biological knowledge of "identity". To know the neurological substrate of alterations of identity, this can help to improve the empathy of the suffering caregivers for the patient. PMID:19473950

  6. RELATIONSHIPS BETWEEN IDENTITY AND ACADEMIC MOTIVATION.

    PubMed

    Matsushima, Rumi; Ozaki, Hitomi

    2015-08-01

    This study examined university students' academic motivation, focusing on individual differences in their sense of identity. The participants were 109 female Japanese students from two private universities (age range = 19-22 yr., M = 19.3, SD = 0.6). They completed four scales: the Multidimensional Ego Identity Scale, the Scale of Students' Attitude Toward Their Classes, the Academic Motivation Inventory, and the Scale of Lecture Self-Evaluation. Correlational analyses assessed the relationships between subscales. Then, path analysis was conducted to evaluate whether sense of identity affected attitude toward classes, academic motivation, and lecture self-evaluation. Differences particularly in psychosocial identity and self-identity accounted for significant variance in the students' attitudes toward classes, academic motivation, and lecture self-evaluation.

  7. Identification of the UIR bands

    NASA Astrophysics Data System (ADS)

    Johnson, Fred M.

    2016-06-01

    Starlight undergoing multiple scattering processes within fluffy grains results in extinction, UV 2175A bump, DIBs and the UIR bands. Spectroscopic lab and DIB data has identified the highly fluorescent molecule Dipyridyl Magnesium Tetrabenzoporphyrin (MgTBP). Reflection and Raman scattering experimental data will be presented which designates this molecule as the primary source for UIR signals. MgTBP sublimes at about 500OC. It is produced via high temperature plasma synthesis within and subsequently ejected from comets which in turn are by-products of solar system-planetary development. Interstellar dust is the left-over refuse which implies prodigious solar system evolution in each galaxy.

  8. Pairing Competition between Identical and Homologous Chromosomes in Rye and Grasshoppers

    PubMed Central

    Santos, J. L.; Orellana, J.; Giraldez, R.

    1983-01-01

    Meiotic pairing preferences between identical and homologous but not identical chromosomes were analyzed in spontaneous tetraploid/diploid chimeras of three male grasshoppers (Eyprepocnemis plorans) whose chromosome pair 11 were heterozygous for C-banding pattern and in four induced tetraploid/diploid chimaeral rye plants (Secale cereale) heterozygous for telomeric heterochromatin C-bands in chromosomes 1R and 2R. In the grasshoppers, a preference for identical over homologous pairing was observed, whereas in rye both a preference for homologous rather than identical pairing and random pairing between the four chromosomes of the set was found. From the results in rye, it can be deduced that pairing preferences do not depend exclusively on the similarities between chromosomes involved. It is suggested that genotypic or cryptic structural differences between the homologous chromosomes of each pair analyzed might be responsible for the pairing preferences found. This hypothesis can also explain the results obtained in grasshoppers, although the possibility of premeiotic association cannot be excluded in this material. PMID:17246148

  9. On sampling band-pass signals

    NASA Technical Reports Server (NTRS)

    Sadr, R.; Shahshahani, M.

    1989-01-01

    Four techniques for uniform sampling of band-bass signals are examined. The in-phase and quadrature components of the band-pass signal are computed in terms of the samples of the original band-pass signal. The relative implementation merits of these techniques are discussed with reference to the Deep Space Network (DSN).

  10. Prenatal diagnosis of amniotic band syndrome

    PubMed Central

    Padmanabhan, Laxmi Devi; Hamza, Zareena V; Thampi, Madhavan Venugopalan; Nampoothiri, Sheela

    2016-01-01

    Amniotic band can cause a broad spectrum of anomalies ranging from simple band constrictions to major craniofacial and visceral defects. It can cause significant neonatal morbidity. Accurate diagnosis will help in the management of the present pregnancy and in counseling with regard to future pregnancies. Here we report three cases of amniotic band syndrome detected in the prenatal period. PMID:27081225

  11. Black Scholes’ model and Bollinger bands

    NASA Astrophysics Data System (ADS)

    Liu, Wei; Huang, Xudong; Zheng, Weian

    2006-11-01

    Bollinger bands are well-known in stock market as a popular technical analysis tool. We found that Black-Scholes stock price model had this Bollinger bands property also. In this paper, we give the proof of this phenomenon, and give a new distribution of a statistics generated by the Bollinger bands.

  12. Prenatal diagnosis of amniotic band syndrome.

    PubMed

    Padmanabhan, Laxmi Devi; Hamza, Zareena V; Thampi, Madhavan Venugopalan; Nampoothiri, Sheela

    2016-01-01

    Amniotic band can cause a broad spectrum of anomalies ranging from simple band constrictions to major craniofacial and visceral defects. It can cause significant neonatal morbidity. Accurate diagnosis will help in the management of the present pregnancy and in counseling with regard to future pregnancies. Here we report three cases of amniotic band syndrome detected in the prenatal period.

  13. Tap Teens' Curiosity with Lab Band.

    ERIC Educational Resources Information Center

    Saunders, Jane

    2002-01-01

    Describes the Lab Band project used with 12th grade students at the Westgate Collegiate and Vocational Institute in Thunder Bay, Ontario (Canada). Explains that each band student taught a peer how to play their instrument which created versatility in the band. States that all students kept a reflective journal. (CMK)

  14. Spiral Cloud Band Associated with a Tornado.

    PubMed

    Sadowski, A

    1960-09-16

    The radarscope photographic sequence, by far the best example on record, reveals a spirally banded structure about 10 miles in diameter which is similar to spiral bands of hurricanes ranging as far as 250 miles and to the banded cloud structure of well-developed storms of 1000 miles as photographed by Tiros I.

  15. S and Ku band frequency source development

    NASA Technical Reports Server (NTRS)

    1980-01-01

    The results of the two part S- and Ku-band source development program are described. The S- and Ku-band sources were designed, fabricated, and evaluated. A high performance S- and Ku-band microwave signal source using state-of-the-art oscillator and microwave source technology was developed.

  16. Medical identity theft: an emerging problem for informatics.

    PubMed

    Gillette, William; Patrick, Timothy B

    2007-10-11

    This poster reports a preliminary review of medical identity theft. Financial identity theft has received a great deal of media attention. Medical identity theft is a particular kind of identity theft that has received little attention. There are two main subtypes of medical identity theft. In the first type the stolen medical identity is used to receive medical services, and in the second type the stolen medical identity is used to commit healthcare fraud.

  17. V-band IMPATT transmitter

    NASA Technical Reports Server (NTRS)

    Williams, D.; Ying, R. S.

    1983-01-01

    A V-band transmitter for communication application was developed that has 30 dB gain and consists of six stages of IMPATT amplifiers. The low and medium power stages are stable amplifiers while the two high power stages are triggered oscillators. Hybrid couplers in the form of Magic Tees were used for power combining two single diode IMPATT modules in the high driver stage and for a single diode IMPATT modules at the output stage. Output power of 4 watts CW across a 2.5 GHz band centered at 60 GHz was achieved with an input power of 4 mW. Dynamic range of the amplifier chain is in excess of 7 dB. A single diode one watt stable amplifier over a bandwidth greater than 2.5 GHz, a high power ( 1 watt) stable amplifier capable of operating in either the constant current or constant voltage mode and verification of the advantages of the latter mode of operation; and a 10 channel modulator with built in test equipment (specifically protective circuitry, failure monitoring, and mode of failure indicated) were also developed. The performance requirements of circulators/isolators for reflection amplifiers were also defined and verified.

  18. Barriers to ego identity status formation: a contextual qualification of Marcia's identity status paradigm.

    PubMed

    Yoder, A E

    2000-02-01

    While many psychological, sociological and educational researchers acknowledge that ego identity formation is a socially embedded process, others have found that identity research often focuses, almost exclusively, on internal psychological development. The concept of "barriers" provides a means by which to describe external influences associated with adolescent and young adult ego identity exploration and commitment processes which affect and possibly limit individual developmental options. Based on Erikson's assumption that ego identity formation involves both personal growth and communal change, the barriers qualification expands upon Marica's identity status paradigm to more accurately reflect socio-cultural variables which may have impact upon individual internal psychological function.

  19. Identity development in the late twenties: a never ending story.

    PubMed

    Carlsson, Johanna; Wängqvist, Maria; Frisén, Ann

    2015-03-01

    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 stability in identity development is common, particularly so once identity-defining commitments have been made. Identity status interviews were performed with 124 Swedish individuals (63 women) at ages 25 and 29. The 4 identity statuses were equally common at both ages, and stability in identity status between measurements was a typical pattern for individuals assigned to all identity statuses, except moratorium. Longitudinal analysis of interviews from participants assigned to identity achievement, or foreclosure at both occasions, resulted in a model of continued identity development after commitments have been made. The model showed that relevant processes in this identity development are: the ways in which individuals approach changing life conditions, to what extent they continue to engage in meaning making, and how they continue to develop their personal life direction. Identity achievement was connected to continued identity development, whereas developmental patterns connected to foreclosure were more diverse. In conclusion, the study showed that, regardless of identity status change or stability, identity development continues in the late 20s, also beyond identity achievement. Moreover, continued identity development is needed for an established sense of identity to stay adaptive and flexible.

  20. Iliotibial band syndrome: evaluation and management.

    PubMed

    Strauss, Eric J; Kim, Suezie; Calcei, Jacob G; Park, Daniel

    2011-12-01

    Iliotibial band syndrome is a common overuse injury typically seen in runners, cyclists, and military recruits. Affected patients report lateral knee pain associated with repetitive motion activities. The diagnosis is usually made based on a characteristic history and physical examination, with imaging studies reserved for cases of recalcitrant disease to rule out other pathologic entities. Several etiologies have been proposed for iliotibial band syndrome, including friction of the iliotibial band against the lateral femoral epicondyle, compression of the fat and connective tissue deep to the iliotibial band, and chronic inflammation of the iliotibial band bursa. The mainstay of treatment is nonsurgical; however, in persistent or chronic cases, surgical management is indicated.

  1. Dust bands in the asteroid belt

    NASA Technical Reports Server (NTRS)

    Sykes, Mark V.; Greenberg, Richard; Dermott, Stanley F.; Nicholson, Philip D.; Burns, Joseph A.

    1989-01-01

    This paper describes the original IRAS observations leading to the discovery of the three dust bands in the asteroid belt and the analysis of data. Special attention is given to an analytical model of the dust band torus and to theories concerning the origin of the dust bands, with special attention given to the collisional equilibrium (asteroid family), the nonequilibrium (random collision), and the comet hypotheses of dust-band origin. It is noted that neither the equilibrium nor nonequilibrium models, as currently formulated, present a complete picture of the IRAS dust-band observations.

  2. WIDE BAND REGENERATIVE FREQUENCY DIVIDER AND MULTIPLIER

    DOEpatents

    Laine, E.F.

    1959-11-17

    A regenerative frequency divider and multiplier having wide band input characteristics is presented. The circuit produces output oscillations having frequencies related by a fixed ratio to input oscillations over a wide band of frequencies. In accomplishing this end, the divider-multiplier includes a wide band input circuit coupled by mixer means to a wide band output circuit having a pass band related by a fixed ratio to that of the input circuit. A regenerative feedback circuit derives a fixed frequency ratio feedback signal from the output circuit and applies same to the mixer means in proper phase relation to sustain fixed frequency ratio oscillations in the output circuit.

  3. 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.

  4. 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.

  5. Ego identity of adolescent children of alcoholics.

    PubMed

    Gavriel-Fried, Belle; Teichman, Meir

    2007-01-01

    The study examines the issue of ego identity among adolescent sons of alcoholic fathers. Forty-four adolescent sons of alcoholic fathers, age of 15-18, constituted the sample. They were drawn from public alcohol treatment center in Israel. The control group included 60 adolescents none of their parents is known as an alcoholic, sampled from integrative schools in the same neighborhood and matched by age. Ego identity was measured by Tzuriel's "Adolescent Ego Identity Scale" (AEIS). It was hypothesized that adolescent children of alcoholics will show lower scores of ego identity and of its dimensions. The hypothesis was not confirmed. To the contrary, adolescent children of alcoholics reported higher scores of "ego identity-total" and of four of the seven ego identity dimensions. One possible explanation is that children of alcoholics are maturing early in age compared to their controls. They have developed different coping strategies that facilitate creating a more "stable" ego identity compared to their peers. Another explanation is that children of alcoholics apply defense mechanisms that enhance the development of an "adaptive self."

  6. Identity-based motivation: Implications for intervention

    PubMed Central

    Oyserman, Daphna; Destin, Mesmin

    2010-01-01

    Children want to succeed academically and attend college, but their actual attainment often lags behind; some groups (e.g., boys, low-income children) are particularly likely to experience this gap. Social structural factors matter, influencing this gap in part by affecting children's perceptions of what is possible for them and people like them in the future. Interventions that focus on this macro-micro interface can boost children's attainment. We articulate the processes underlying these effects using an integrative culturally sensitive framework entitled identity-based motivation (IBM, Oyserman, 2007, 2009a, 2009b). The IBM model assumes that identities are dynamically constructed in context. People interpret situations and difficulties in ways that are congruent with currently active identities and prefer identity-congruent to identity-incongruent actions. When action feels identity-congruent, experienced difficulty highlights that the behavior is important and meaningful. When action feels identity-incongruent, the same difficulty suggests that the behavior is pointless and “not for people like me.” PMID:21516204

  7. Career identity in the veterinary profession.

    PubMed

    Page-Jones, S; Abbey, G

    2015-04-25

    This research investigates vet and vet nurse career identity through the qualitative methodology of narrative enquiry. It derives learning and understanding from these empirical data to assist the veterinary profession to adjust to the changing industry landscape. Through a case series of 20 vets and vet nurses' career stories, this paper seeks understanding about career identity and its impact on individuals and organisations in the light of industry consolidation. Findings suggest that career is central to identity for many veterinary professionals who tend to have a strong sense of self; this is particularly evident around self as learner and technically competent, teacher and educator, ethical and moral and dedicated and resilient. Consequently, mismatches between 'who I am' and 'what I do' tend not to lead to identity customisation (to fit self into role or organisation) but to the search for alternative, more identity-compatible employment. This study offers a valuable insight for employers, veterinary professionals and universities. It suggests that businesses can gain competitive advantage and employees achieve validation and enrichment by working towards organisational and individual identity congruence and that teaching veterinary professionals with contemporary business in mind may develop graduates with a more sustainable identity.

  8. The Effects of Band Director Leadership Style and Student Leadership Ability on Band Festival Ratings

    ERIC Educational Resources Information Center

    Davison, P. Dru

    2007-01-01

    This study examined the relationship between band director leadership styles and the strength of student leadership within the bands. This study also examined the differences between leadership styles, student leadership strength, and band festival ratings (marching and concert). Subjects (N = 42) were band directors from Texas and Arkansas who…

  9. A Survey of Beginning Band Methods for Elementary, Middle and High School Band Programs.

    ERIC Educational Resources Information Center

    DeVito, Donald R.

    A survey explored the various band method books available for use with public school beginning band programs. The selection of a beginning band method has an affect on the curriculum and future musical growth and development of public school music education students. The first section surveys band methods for the concepts they cover, the choice of…

  10. A Novel Ku-Band/Ka-Band and Ka-Band/E-Band Multimode Waveguide Couplers for Power Measurement of Traveling-Wave Tube Amplifier Harmonic Frequencies

    NASA Technical Reports Server (NTRS)

    Wintucky, Edwin G.; Simons, Rainee N.

    2015-01-01

    This paper presents the design, fabrication and test results for a novel waveguide multimode directional coupler (MDC). The coupler, fabricated from two dissimilar frequency band waveguides, is capable of isolating power at the second harmonic frequency from the fundamental power at the output port of a traveling-wave tube (TWT) amplifier. Test results from proof-of-concept demonstrations are presented for a Ku-band/Ka-band MDC and a Ka-band/E-band MDC. In addition to power measurements at harmonic frequencies, a potential application of the MDC is in the design of a satellite borne beacon source for atmospheric propagation studies at millimeter-wave (mm-wave) frequencies (Ka-band and E-band).

  11. Band models and correlations for infrared radiation

    NASA Technical Reports Server (NTRS)

    Tiwari, S. N.

    1975-01-01

    Absorption of infrared radiation by various line and band models are briefly reviewed. Narrow band model relations for absorptance are used to develop 'exact' formulations for total absorption by four wide band models. Application of a wide band model to a particular gas largely depends upon the spectroscopic characteristic of the absorbing-emitting molecule. Seven continuous correlations for the absorption of a wide band model are presented and each one of these is compared with the exact (numerical) solutions of the wide band models. Comparison of these results indicate the validity of a correlation for a particular radiative transfer application. In radiative transfer analyses, use of continuous correlations for total band absorptance provides flexibilities in various mathematical operations.

  12. 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.

  13. Feynman identity: A special case. I

    SciTech Connect

    da Costa, G.A.

    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.}

  14. Globalization and identity development: a Chinese perspective.

    PubMed

    Cheng, Min; Berman, Steven L

    2012-01-01

    This chapter begins with a discussion of the unique experience of adolescents and emerging adults who grew up with globalization in China and how it has affected their sense of self. We then discuss the effects of globalization on identity development in general, with a special focus on the sociohistorical context of China. We also review and critique the psychological literature that has been conducted on identity within Chinese and Chinese American populations. Finally, we discuss the applicability of Western concepts of identity on a culture that does not necessarily share the same value structure.

  15. A Christian identity for the liberal state?

    PubMed

    Joppke, Christian

    2013-12-01

    It seems to be impossible for the liberal state to embrace a Christian identity, because 'liberalism' is exactly a device for separating state and religion. Discussing the implications of a recent decision of the European Court of Human Rights, Lautsi v. Italy (2011), I argue that this is not necessarily so. If paired with a liberal commitment to pluralism, a Christian identity might even be more inclusive of minority religions than a narrowly 'liberal' state identity, which has been the dominant response in Western Europe to the challenge of immigrant diversity, especially that of Muslim origins. PMID:24320068

  16. 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…

  17. 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…

  18. 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…

  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. S-band transponder experiment

    NASA Technical Reports Server (NTRS)

    Sjogren, W. L.; Gottlieb, P.; Muller, P. M.; Wollenhaupt, W. R.

    1972-01-01

    The experiment which derives data from three lunar-orbiting objects, the command-service module (CSM), the lunar module (LM), and the subsatellite in the S-band is described. Each provides detailed information on the near-side lunar gravitational field. The primary emphasis is on the low-altitude (20 km) CSM data. The LM data cover a very short time span and are somewhat redundant with the CSM data. The resolution of the high-altitude (100 km) CSM data is not as great as that of the low altitude data. The low-altitude CSM and LM data coverage and the complementary coverage obtained during the Apollo 14 mission are presented. The experiment uses the same technique of gravity determination employed on the Lunar Orbiter, in the data of which the large anomalies called mascons were first observed. The data consist of variations in the spacecraft speed as measured by the Earth-based radio tracking system.

  1. Photonic band gap structure simulator

    DOEpatents

    Chen, Chiping; Shapiro, Michael A.; Smirnova, Evgenya I.; Temkin, Richard J.; Sirigiri, Jagadishwar R.

    2006-10-03

    A system and method for designing photonic band gap structures. The system and method provide a user with the capability to produce a model of a two-dimensional array of conductors corresponding to a unit cell. The model involves a linear equation. Boundary conditions representative of conditions at the boundary of the unit cell are applied to a solution of the Helmholtz equation defined for the unit cell. The linear equation can be approximated by a Hermitian matrix. An eigenvalue of the Helmholtz equation is calculated. One computation approach involves calculating finite differences. The model can include a symmetry element, such as a center of inversion, a rotation axis, and a mirror plane. A graphical user interface is provided for the user's convenience. A display is provided to display to a user the calculated eigenvalue, corresponding to a photonic energy level in the Brilloin zone of the unit cell.

  2. Circular birefringence of banded spherulites.

    PubMed

    Cui, Xiaoyan; Shtukenberg, Alexander G; Freudenthal, John; Nichols, Shane; Kahr, Bart

    2014-04-01

    Crystal optical properties of banded spherulites of 21 different compounds--molecular crystals, polymers, and minerals--with helically twisted fibers were analyzed with Mueller matrix polarimetry. The well-established radial oscillations in linear birefringence of many polycrystalline ensembles is accompanied by oscillations in circular birefringence that cannot be explained by the natural optical activity of corresponding compounds, some of which are centrosymmetric in the crystalline state. The circular birefringence is shown to be a consequence of misoriented, overlapping anisotropic lamellae, a kind of optical activity associated with the mesoscale stereochemistry of the refracting components. Lamellae splay as a consequence of space constraints related to simultaneous twisting of anisometric lamellae. This mechanism is supported by quantitative simulations of circular birefringence arising from crystallite twisting and splaying under confinement. PMID:24625095

  3. Theory of band warping and its effects on thermoelectronic transport properties

    NASA Astrophysics Data System (ADS)

    Mecholsky, Nicholas A.; Resca, Lorenzo; Pegg, Ian L.; Fornari, Marco

    2014-04-01

    theory we discover the formal existence at critical points of transport-equivalent ellipsoidal bands that yield identical results from the standpoint of any transport property. Additionally, we illustrate with some basic multiband models the drastic effects that band warping and anisotropy can induce on thermoelectric properties such as electronic conductivity and thermopower tensors.

  4. Topics in topological band systems

    NASA Astrophysics Data System (ADS)

    Huang, Zhoushen

    The discovery of integer quantum Hall effect and its subsequent theoretical formulation heralded a new paradigm of thinking in condensed matter physics, which has by now blossomed into the rapidly growing field of topological phases. In this work we investigate several mutually related topics in the framework of topological band theory. In Chapter 2, we study solutions to boundary states on a lattice and see how they are related to the bulk topology. To elicit a real space manifestation of the non-trivial topology, the presence of a physical edge is not strictly necessary. We study two other possibilities, namely the entanglement spectrum associated with an imaginary spatial boundary, and the localization centers of Wannier functions, in Chapters 3,4, and 5. Topological classification through discrete indices is so far possible only for systems described by pure quantum states---in the existing scheme, quantization is lost for systems in mixed states. In Chapter 6, we present a program through which discrete topological indices can be defined for topological band systems at finite temperature, based on Uhlmann's parallel transport of density matrices. The potential of topologocal insulators in realistic applications lies in the existence of Dirac nodes on its surface spectrum. Dirac physics, however, is not exclusive to TI surfaces. In a recently discovered class of materials known as Weyl semimetals, energy nodes which emit linear dispersions also occur in the bulk material. In Chapter 7, we study the possibility of resonance states induced by localized impurities near the nodal energy in Weyl semimetals, which will help us in understanding the stability of density-of-state suppression at the energy nodes. Finally, in Chapter 8, we apply the topological characterization developed for noninteracting particles to a class of interacting spin models in 3D, which are generalizations of Kitaev's honeycomb model, and identify several exotic quantum phases such as spin

  5. L-band/P-band SAR comparison for search and rescue: recent results

    NASA Astrophysics Data System (ADS)

    Rais, Houra; Mansfield, Arthur W.

    1999-08-01

    A key question in SAR-aided search is the relative utility of L-Band versus P-Band data. A continuing study is underway using target data collected by the NASA Search and Rescue Mission. This paper presents the most recent results of the investigation, including Navy P-3 SAR data at L-Band and JPL SAR data at L-band and P-band.

  6. Voltage-Matched, Monolithic, Multi-Band-Gap Devices

    DOEpatents

    Wanlass, M. W.; Mascarenhas, A.

    2006-08-22

    Monolithic, tandem, photonic cells include at least a first semiconductor layer and a second semiconductor layer, wherein each semiconductor layer includes an n-type region, a p-type region, and a given band-gap energy. Formed within each semiconductor layer is a string of electrically connected photonic sub-cells. By carefully selecting the numbers of photonic sub-cells in the first and second layer photonic sub-cell string(s), and by carefully selecting the manner in which the sub-cells in a first and second layer photonic sub-cell string(s) are electrically connected, each of the first and second layer sub-cell strings may be made to achieve one or more substantially identical electrical characteristics.

  7. Voltage-matched, monolithic, multi-band-gap devices

    DOEpatents

    Wanlass, Mark W.; Mascarenhas, Angelo

    2006-08-22

    Monolithic, tandem, photonic cells include at least a first semiconductor layer and a second semiconductor layer, wherein each semiconductor layer includes an n-type region, a p-type region, and a given band-gap energy. Formed within each semiconductor layer is a sting of electrically connected photonic sub-cells. By carefully selecting the numbers of photonic sub-cells in the first and second layer photonic sub-cell string(s), and by carefully selecting the manner in which the sub-cells in a first and second layer photonic sub-cell string(s) are electrically connected, each of the first and second layer sub-cell strings may be made to achieve one or more substantially identical electrical characteristics.

  8. Inquiry identity and science teacher professional development

    NASA Astrophysics Data System (ADS)

    Bryce, Nadine; Wilmes, Sara E. D.; Bellino, Marissa

    2016-06-01

    An effective inquiry-oriented science teacher possesses more than the skills of teaching through investigation. They must address philosophies, and ways of interacting as a member of a group of educators who value and practice science through inquiry. Professional development opportunities can support inquiry identity development, but most often they address teaching practices from limited cognitive perspectives, leaving unexplored the shifts in identity that may accompany teachers along their journey in becoming skilled in inquiry-oriented instruction. In this forum article, we envision Victoria Deneroff's argument that "professional development could be designed to facilitate reflexive transformation of identity within professional learning environments" (2013, p. 33). Instructional coaching, cogenerative dialogues, and online professional communities are discussed as ways to promote inquiry identity formation and collaboration in ways that empower and deepen science teachers' conversations related to personal and professional efficacy in the service of improved science teaching and learning.

  9. On the Somigliana stress identity in elasticity

    NASA Astrophysics Data System (ADS)

    Cruse, T. A.; Suwito, W.

    1993-01-01

    The paper presents and analytical investigation of the properties of the integral terms in the Somigliana stress identity which are associated with a perceived hypersingular nature of the integral equations in three dimensional elasticity. The nature of the integral equations is, in fact, found to be non-hypersingular, thereby permitting direct evaluation of the jump terms in the stress identity for a solution point taken, in the limit, to the surface of the body. The continuity requirements on the boundary conditions are found to be more liberal than previously reported. A weakly-singular form of the Somigliana identity is found that is easily used for BEM implementations that use Gaussian integrations. Demonstration of the boundary form of the Somigliana stress identity is given for a three dimensional elasticity problem.

  10. Identity, gender, and subjective well-being.

    PubMed

    Chang, Wen-Chun

    2011-01-01

    Using the self-reported level of happiness as a measure of subjective well-being, this study examines the relationship between gender identity and subjective well-being with data from Taiwan. The findings suggest that an individual's perceptions about the ideals of women's gender roles in the labor market, the family, and politics are strongly related to his or her assigned social category, the prescriptions and characteristics associated with the social category, and the actions taken to match the ideals of gender identity. Consistent with Akerlof and Kranton's (2000) identity model, it is also found that an individual's gains or losses in gender identity lead to increases or decreases in the level of happiness. PMID:21542199

  11. Two types of cross-gender identity.

    PubMed

    Freund, K; Steiner, B W; Chan, S

    1982-02-01

    A revision of the typology of male cross-gender identity was carried out by means of formalized, easily replicable methods. The results suggest (1) that there are two discrete types of cross-gender identity, one heterosexual, the other homosexual; (2) that transvestism, and closely related conditions of cross-gender identity, occur exclusively or almost exclusively in heterosexuals; (3) that of the two types of transsexualism distinguished in this study, type A is, in heterosexuals, very rare or completely nonexistent; (4) that (in the course of time) transvestites or borderline transsexuals (defined below) may develop sustained cross-gender identity, as observed by Stoller (1971); (5) that although, according to Hoenig and Kenna (1974), transsexualism by itself is not an anomalous erotic preference, it is (virtually) always either preceded by transvestism or accompanied by homosexuality or cross-gender fetishism.

  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. 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

  14. New identities between unitary minimal Virasoro characters

    NASA Astrophysics Data System (ADS)

    Taormina, Anne

    1994-10-01

    Two sets of identities between unitary minimal Virasoro characters at levels m=3, 4, 5 are presented and proven. The first identity suggests a connection between the Ising and the tricritical Ising models since the m=3 Virasoro characters are obtained as bilinears of m=4 Virasoro characters. The second identity given the tricritical Ising model characters as bilinears in the Ising model characters and the six combinations of m=5 Virasoro characters which do not appear in the spectrum of the three state Potts model. The implication of these identities on the study of the branching rules of N=4 superconformal characters intoSwidehat{U(2)} × Swidehat{U(2)} characters is discussed.

  15. 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.

  16. 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

  17. A comparison of spatial frequency tuning for judgments of eye gaze and facial identity.

    PubMed

    Vida, Mark D; Maurer, Daphne

    2015-07-01

    Humans use the direction of eye gaze and facial identity to make important social judgments. We carried out the first measurements of spatial frequency (SF) tuning for judgments of eye gaze, and compared SF tuning for judgments of facial identity and eye gaze. In Experiment 1, participants discriminated between leftward and rightward shifts of gaze, or between two male faces or two female faces. Faces were masked with visual noise that blocked one of 10 SF bands. For each task and masking SF, we measured contrast thresholds for human observers, and used an ideal observer to measure the amount of visual information available to perform the task. As in previous research, low to mid SFs were most important for judgments of facial identity. Mid to high SFs were most important for judgments of eye gaze, and the highest SF important for these judgments was higher than that for identity. In Experiment 2, participants discriminated horizontal and vertical shifts of gaze. The highest SF important for judgments of gaze did not differ between the horizontal and vertical axes. However, SFs above and below this value were more important for judgments of vertical shifts of gaze than for horizontal shifts of gaze. These results suggest that the visual system relies on higher SFs for judgments of eye gaze than for judgments of facial identity, and that SF tuning is broader for judgments of vertical shifts of gaze than for horizontal shifts of gaze.

  18. [The aging from the narrative identity].

    PubMed

    Iacub, Ricardo

    2010-01-01

    This article is a theoretical study which aims to articulate the notion of narrative identity in the process of aging. This theory makes it possible to present the modalities of figuration of the subject, its broken meanings or refigurations and their elaborated narratives or configurations. The identity narrative explores the mechanisms by which a person develops stories using temporal references, relatives to past and future, and meaningful contexts, to acquire meanings in situations or life stages of disruption and disagreement on whether figuration.

  19. Generalized polynomials, operational identities and their applications

    NASA Astrophysics Data System (ADS)

    Dattoli, G.

    2000-06-01

    It is shown that an appropriate combination of methods, relevant to generalized operational calculus and to special functions, can be a very useful tool to treat a large body of problems both in physics and mathematics. We discuss operational methods associated with multivariable Hermite, Laguerre, Legendre, and other polynomials to derive a wealth of identities useful in quantum mechanics, electromagnetism, optics, etc., or to derive new identities between special functions as, e.g., Mehler- or mixed-type generating functions.

  20. 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.

  1. The relational treatment of dissociative identity disorder.

    PubMed

    Burton, N; Lane, R C

    2001-03-01

    The intent of this paper is to review the literature pertaining to the transference and countertransference components in the treatment of dissociative identity disorder. Aspects of transference and countertransference are presented and discussed within the relational psychoanalytic model. The functions of empathy, enactment, projective identification, and transitional objects are reviewed. Specific attitudes in the transference and countertransference are illuminated and major transference themes are discussed. Finally, a case vignette illustrates some of the central issues involved in the treatment of dissociative identity disorder.

  2. Social identity change in response to discrimination.

    PubMed

    Perozzo, Cristina; de la Sablonnière, Roxane; Auger, Emilie; Caron-Diotte, Mathieu

    2016-09-01

    This study investigated the conditions under which discrimination can lead to social identity changes among members of a minority group. Both positive and negative relations between perceptions of discrimination and social identity have previously been reported. To explain the conflicting results and understand the complex reality of members of stigmatized groups, we argue that group-based emotions (e.g., group-based dissatisfaction) and ambiguity of discrimination cues (i.e., overt vs. ambiguous) need to be considered. We hypothesized that perceptions of discrimination would play a moderating role between group-based dissatisfaction and social identity change in a context of ambiguous, but not of overt, discrimination. The sample was comprised of 151 Arab Muslims living in the province of Quebec. Participants read fictitious newspaper articles portraying either overt (n = 76) or ambiguous (n = 75) discrimination towards in-group members. Results revealed that for participants in the overt discrimination condition, only group-based dissatisfaction was positively associated with social identity change. In contrast, for the participants in the ambiguous discrimination condition, those who perceived little discrimination and felt low group-based dissatisfaction reported a decrease in social identity. However, those who perceived low group discrimination and felt high group-based dissatisfaction reported a positive social identity change. PMID:27242071

  3. Identity formation in adolescence: change or stability?

    PubMed

    Klimstra, Theo A; Hale, William W; Raaijmakers, Quinten A W; Branje, Susan J T; Meeus, Wim H J

    2010-02-01

    The aim of this five-wave longitudinal study of 923 early to middle adolescents (50.7% boys; 49.3% girls) and 390 middle to late adolescents (43.3% boys and 56.7% girls) is to provide a comprehensive view on change and stability in identity formation from ages 12 to 20. Several types of change and stability (i.e., mean-level change, rank-order stability, and profile similarity) were assessed for three dimensions of identity formation (i.e., commitment, in-depth exploration, and reconsideration), using adolescent self-report questionnaires. Results revealed changes in identity dimensions towards maturity, indicated by a decreasing tendency for reconsideration, increasingly more in-depth exploration, and increasingly more stable identity dimension profiles. Mean levels of commitment remained stable, and rank-order stability of commitment, in-depth exploration, and reconsideration did not change with age. Overall, girls were more mature with regard to identity formation in early adolescence, but boys had caught up with them by late adolescence. Taken together, our findings indicate that adolescent identity formation is guided by progressive changes in the way adolescents deal with commitments, rather than by changes in the commitments themselves.

  4. Social identity change in response to discrimination.

    PubMed

    Perozzo, Cristina; de la Sablonnière, Roxane; Auger, Emilie; Caron-Diotte, Mathieu

    2016-09-01

    This study investigated the conditions under which discrimination can lead to social identity changes among members of a minority group. Both positive and negative relations between perceptions of discrimination and social identity have previously been reported. To explain the conflicting results and understand the complex reality of members of stigmatized groups, we argue that group-based emotions (e.g., group-based dissatisfaction) and ambiguity of discrimination cues (i.e., overt vs. ambiguous) need to be considered. We hypothesized that perceptions of discrimination would play a moderating role between group-based dissatisfaction and social identity change in a context of ambiguous, but not of overt, discrimination. The sample was comprised of 151 Arab Muslims living in the province of Quebec. Participants read fictitious newspaper articles portraying either overt (n = 76) or ambiguous (n = 75) discrimination towards in-group members. Results revealed that for participants in the overt discrimination condition, only group-based dissatisfaction was positively associated with social identity change. In contrast, for the participants in the ambiguous discrimination condition, those who perceived little discrimination and felt low group-based dissatisfaction reported a decrease in social identity. However, those who perceived low group discrimination and felt high group-based dissatisfaction reported a positive social identity change.

  5. Indirect-to-direct band gap crossover in few-layer MoTe₂.

    PubMed

    Lezama, Ignacio Gutiérrez; Arora, Ashish; Ubaldini, Alberto; Barreteau, Céline; Giannini, Enrico; Potemski, Marek; Morpurgo, Alberto F

    2015-04-01

    We study the evolution of the band gap structure in few-layer MoTe2 crystals, by means of low-temperature microreflectance (MR) and temperature-dependent photoluminescence (PL) measurements. The analysis of the measurements indicate that in complete analogy with other semiconducting transition metal dichalchogenides (TMDs) the dominant PL emission peaks originate from direct transitions associated with recombination of excitons and trions. When we follow the evolution of the PL intensity as a function of layer thickness, however, we observe that MoTe2 behaves differently from other semiconducting TMDs investigated earlier. Specifically, the exciton PL yield (integrated PL intensity) is identical for mono and bilayer, decreases slightly for trilayer, and it is significantly lower in the tetralayer. The analysis of this behavior and of all our experimental observations is fully consistent with mono and bilayer MoTe2 being direct band gap semiconductors with tetralayer MoTe2 being an indirect gap semiconductor and with trilayers having nearly identical direct and indirect gaps. This conclusion is different from the one reached for other recently investigated semiconducting transition metal dichalcogenides for which monolayers are found to be direct band gap semiconductors, and thicker layers have indirect band gaps that are significantly smaller (by hundreds of meV) than the direct gap. We discuss the relevance of our findings for experiments of fundamental interest and possible future device applications.

  6. Indirect-to-direct band gap crossover in few-layer MoTe₂.

    PubMed

    Lezama, Ignacio Gutiérrez; Arora, Ashish; Ubaldini, Alberto; Barreteau, Céline; Giannini, Enrico; Potemski, Marek; Morpurgo, Alberto F

    2015-04-01

    We study the evolution of the band gap structure in few-layer MoTe2 crystals, by means of low-temperature microreflectance (MR) and temperature-dependent photoluminescence (PL) measurements. The analysis of the measurements indicate that in complete analogy with other semiconducting transition metal dichalchogenides (TMDs) the dominant PL emission peaks originate from direct transitions associated with recombination of excitons and trions. When we follow the evolution of the PL intensity as a function of layer thickness, however, we observe that MoTe2 behaves differently from other semiconducting TMDs investigated earlier. Specifically, the exciton PL yield (integrated PL intensity) is identical for mono and bilayer, decreases slightly for trilayer, and it is significantly lower in the tetralayer. The analysis of this behavior and of all our experimental observations is fully consistent with mono and bilayer MoTe2 being direct band gap semiconductors with tetralayer MoTe2 being an indirect gap semiconductor and with trilayers having nearly identical direct and indirect gaps. This conclusion is different from the one reached for other recently investigated semiconducting transition metal dichalcogenides for which monolayers are found to be direct band gap semiconductors, and thicker layers have indirect band gaps that are significantly smaller (by hundreds of meV) than the direct gap. We discuss the relevance of our findings for experiments of fundamental interest and possible future device applications. PMID:25803208

  7. Indirect-to-Direct Band Gap Crossover in Few-Layer MoTe2

    NASA Astrophysics Data System (ADS)

    Lezama, Ignacio Gutiérrez; Arora, Ashish; Ubaldini, Alberto; Barreteau, Céline; Giannini, Enrico; Potemski, Marek; Morpurgo, Alberto F.

    2015-04-01

    We study the evolution of the band-gap structure in few-layer MoTe$_2$ crystals, by means of low-temperature micro-reflectance (MR) and temperature-dependent photoluminescence (PL) measurements. The analysis of the measurements indicate that, in complete analogy with other semiconducting transition metal dichalchogenides (TMDs), the dominant PL emission peaks originate from direct transitions associated to recombination of excitons and trions. When we follow the evolution of the PL intensity as a function of layer thickness, however, we observe that MoTe$_2$ behaves differently from other semiconducting TMDs investigated earlier. Specifically, the exciton PL yield (integrated PL intensity) is identical for mono and bilayer and it starts decreasing for trilayers. A quantitative analysis of this behavior and of all our experimental observations is fully consistent with mono and bilayer MoTe$_2$ being direct band-gap semiconductors, with tetralayer MoTe$_2$ being an indirect gap semiconductor, and with trilayers having nearly identical direct and indirect gaps.This conclusion is different from the one reached for other recently investigated semiconducting transition metal dichalcogenides, for which only monolayers are found to be direct band-gap semiconductors, with thicker layers having indirect band gaps that are significantly smaller, by hundreds of meV, than the direct gap. We discuss the relevance of our findings for experiments of fundamental interest and possible future device applications.

  8. Converging identities: dimensions of acculturation and personal identity status among immigrant college students.

    PubMed

    Schwartz, Seth J; Kim, Su Yeong; Whitbourne, Susan Krauss; Zamboanga, Byron L; Weisskirch, Robert S; Forthun, Larry F; Vazsonyi, Alexander T; Beyers, Wim; Luyckx, Koen

    2013-04-01

    The present study was designed to ascertain the extent to which dimensions of acculturation would differ across personal identity statuses in a sample of 2,411 first- and second-generation, immigrant, college-attending emerging adults. Participants from 30 colleges and universities around the United States completed measures of personal identity processes, as well as of heritage and American cultural practices, values, and identifications. Cluster-analytic procedures were used to classify participants into personal identity statuses based on the personal identity processes. Results indicated that, across ethnic groups, individuals in the achieved and searching moratorium statuses reported the greatest endorsement of heritage and American cultural practices, values, and identifications; and individuals in the carefree diffusion status reported the lowest endorsement of all the cultural variables under study. These results are discussed in terms of the convergence between personal identity and cultural identity processes.

  9. 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.

  10. [The differentiation between identity crisis and identity diffusion and its impact on treatment].

    PubMed

    Foelsch, Pamela A; Odom, Anna; Arena, Helen; Krischer, Maya K; Schmeck, Klaus; Schlüter-Müller, Susanne

    2010-01-01

    The differentiation between an identity crisis, a transient phenomenon that usually results (after resolution) in a well-integrated identity with flexible and adaptive functioning, and an identity diffusion that is viewed as a basis for subsequent personality pathology, has a major impact on the selection of a treatment method. A new treatment method (Adolescent Identity Treatment, AIT), a modification of Transference Focused Psychotherapy, was developed to treat adolescents with identity diffusion in order to improve their relationships with friends, parents, and teachers and to help them acquire positive self-esteem, clarify life goals and establish a stable identity. In a case study we describe the basic approaches of AIT in assessment and treatment.

  11. 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.

  12. Shuttle Ku-band and S-band communications implementations study

    NASA Technical Reports Server (NTRS)

    Huth, G. K.; Nessibou, T.; Nilsen, P. W.; Simon, M. K.; Weber, C. L.

    1979-01-01

    The interfaces between the Ku-band system and the TDRSS, between the S-band system and the TDRSS, GSTDN and SGLS networks, and between the S-band payload communication equipment and the other Orbiter avionic equipment were investigated. The principal activities reported are: (1) performance analysis of the payload narrowband bent-pipe through the Ku-band communication system; (2) performance evaluation of the TDRSS user constraints placed on the S-band and Ku-band communication systems; (3) assessment of the shuttle-unique S-band TDRSS ground station false lock susceptibility; (4) development of procedure to make S-band antenna measurements during orbital flight; (5) development of procedure to make RFI measurements during orbital flight to assess the performance degradation to the TDRSS S-band communication link; and (6) analysis of the payload interface integration problem areas.

  13. Adaptive Confidence Bands for Nonparametric Regression Functions

    PubMed Central

    Cai, T. Tony; Low, Mark; Ma, Zongming

    2014-01-01

    A new formulation for the construction of adaptive confidence bands in non-parametric function estimation problems is proposed. Confidence bands are constructed which have size that adapts to the smoothness of the function while guaranteeing that both the relative excess mass of the function lying outside the band and the measure of the set of points where the function lies outside the band are small. It is shown that the bands adapt over a maximum range of Lipschitz classes. The adaptive confidence band can be easily implemented in standard statistical software with wavelet support. Numerical performance of the procedure is investigated using both simulated and real datasets. The numerical results agree well with the theoretical analysis. The procedure can be easily modified and used for other nonparametric function estimation models. PMID:26269661

  14. Heme charge-transfer band III is vibronically coupled to the Soret band.

    PubMed

    Franzen, Stefan; Wallace-Williams, Stacie E; Shreve, Andrew P

    2002-06-19

    A complete resonance Raman excitation profile of the heme charge-transfer band known as band III is presented. The data obtained throughout the near-infrared region show preresonance with the Q-band, but the data also clearly show the enhancement of a number of modes in the spectral region of band III. Only nontotally symmetric modes are observed to have resonance enhancement in the band III region. The observed resonance enhancements in modes of B(1g) symmetry are compared with the enhancements of those same modes in the excitation profiles of the Q-band of deoxy myoglobin, also presented here for this first time. The Q-band data agree well with the theory of vibronic coupling in metalloporphyrins (Shelnutt, J. A. J. Chem. Phys. 1981, 74, 6644-6657). The strong vibronic coupling of the Q-band of the deoxy form of hemes is discussed in terms of the enhancement of modes with both B(1g) and A(2g) symmetry. The comparison between the Q-band and band III reveals that, consistent with the theory, only modes of B(1g) symmetry are enhanced in the vicinity of band III. These results show that band III is vibronically coupled to the Soret band. The coupling of band III to modes with strong rhombic distortion of the heme macrocycle calls into question the hypothesis that the axial iron out-of-plane displacement is primarily responsible for the structure-dynamics correlations observed in myoglobin.

  15. G0W0 band structure of CdWO4.

    PubMed

    Laasner, Raul

    2014-03-26

    The full quasiparticle band structure of CdWO4 is calculated within the single-shot GW (G0W0) approximation using maximally localized Wannier functions, which allows one to assess the validity of the commonly used scissor operator. Calculations are performed using the Godby-Needs plasmon pole model and the accurate contour deformation technique. It is shown that while the two methods yield identical band gap energies, the low-lying states are given inaccurately by the plasmon pole model. We report a band gap energy of 4.94 eV, including spin-orbit interaction at the DFT-LDA (density functional theory-local density approximation) level. Quasiparticle renormalization in CdWO4 is shown to be correlated with localization distance. Electron and hole effective masses are calculated at the DFT and G0W0 levels. PMID:24599225

  16. Growth of the 889 per cm infrared band in annealed electron-irradiated silicon

    NASA Technical Reports Server (NTRS)

    Svensson, B. G.; Lindstrom, J. L.; Corbett, J. W.

    1985-01-01

    Isothermal annealing of electron-irradiated Czochralski silicon has been studied at four different temperatures ranging from 304 to 350 C using infrared spectroscopy. At annealing temperatures above 300 C the irradiation-induced band at 830 per cm, usually attributed to a vacancy-oxygen complex (the A center), disappears and a new band at 889 per cm grows up. Within the experimental accuracy, the activation energy for the growth of this band is found to be identical with the value given by Stavola et al. for 'anomalous' oxygen diffusion in silicon. Also the frequency factors for the two processes are in reasonable agreement. The results show that a vacancy-assisted process may provide an explanation for enhanced motion of oxygen in silicon.

  17. Polarization insensitive wide-angle triple-band metamaterial bandpass filter

    NASA Astrophysics Data System (ADS)

    Fu, Wenyue; Han, Yuchen; Li, Jiandong; Wang, Haoshen; Li, Haipeng; Han, Kui; Shen, Xiaopeng; Cui, Tiejun

    2016-07-01

    In this letter, we report the design, fabrication and measurement of a polarization insensitive wide-angle triple-band metamaterial bandpass filter (BPF) in the microwave frequency. The proposed BPF consists of two identical metal resonant units which have three concentric square slots separated by a dielectric layer. Experimental results show that the BPF has three distinctive transmission bands centered at frequencies 6.22 GHz, 9.46 GHz and 12.14 GHz with transmission rates of  ‑0.40 dB, ‑0.71 dB and  ‑1.40 dB, respectively, agreeing well with simulation results. By introducing the substrate integrated waveguide, the filter is valid to a wide range of incident angles for both transverse electric and transverse magnetic polarizations. The triple-band metamaterial BPF can be used as multiband filters and radomes owing to its multiband transmissions, polarizations insensitive and wide-angle responses.

  18. ELBARA II, an L-Band Radiometer System for Soil Moisture Research

    PubMed Central

    Schwank, Mike; Wiesmann, Andreas; Werner, Charles; Mätzler, Christian; Weber, Daniel; Murk, Axel; Völksch, Ingo; Wegmüller, Urs

    2010-01-01

    L-band (1–2 GHz) microwave radiometry is a remote sensing technique that can be used to monitor soil moisture, and is deployed in the Soil Moisture and Ocean Salinity (SMOS) Mission of the European Space Agency (ESA). Performing ground-based radiometer campaigns before launch, during the commissioning phase and during the operative SMOS mission is important for validating the satellite data and for the further improvement of the radiative transfer models used in the soil-moisture retrieval algorithms. To address these needs, three identical L-band radiometer systems were ordered by ESA. They rely on the proven architecture of the ETH L-Band radiometer for soil moisture research (ELBARA) with major improvements in the microwave electronics, the internal calibration sources, the data acquisition, the user interface, and the mechanics. The purpose of this paper is to describe the design of the instruments and the main characteristics that are relevant for the user. PMID:22315556

  19. Identity: commentary. Identity development: dialogue between normative and pathological developmental approaches.

    PubMed

    Pasupathi, M

    2014-02-01

    This commentary places the article by Feenstra and colleagues (in press) within the frameworks and findings of normative identity development research. Points of overlap between the way identity is conceptualized by Feenstra and colleagues and the way identity is conceptualized in normative work are outlined. In addition, areas where juxtaposing psychopathology and normative developmental findings could yield new insights for researchers working in both areas are briefly highlighted.

  20. Fade Mitigation Techniques at Ka-Band

    NASA Technical Reports Server (NTRS)

    Dissanayake, Asoka (Editor)

    1996-01-01

    Rain fading is the dominant propagation impairment affecting Ka-band satellite links and rain fade mitigation is a key element in the design of Ka-band satellite networks. Some of the common fade mitigation techniques include: power control, diversity, adaptive coding, and resource sharing. The Advanced Communications Technology Satellite (ACTS) provides an excellent opportunity to develop and test Ka-band rain impairment amelioration techniques. Up-link power control and diversity are discussed in this paper.

  1. X-BAND KLYSTRON DEVELOPMENT AT SLAC

    SciTech Connect

    Vlieks, Arnold E.; /SLAC

    2009-08-03

    The development of X-band klystrons at SLAC originated with the idea of building an X-band Linear Collider in the late 1980's. Since then much effort has been expended in developing a reliable X-band Power source capable of delivering >50 MW RF power in pulse widths >1.5 {micro}s. I will report on some of the technical issues and design strategies which have led to the current SLAC klystron designs.

  2. Possible chiral bands in {sup 194}Tl

    SciTech Connect

    Masiteng, P. L.; Ramashidzha, T. M.; Maliage, S. M.; Sharpey-Schafer, J. F.; Vymers, P. A.; Lawrie, E. A.; Lawrie, J. J.; Bark, R. A.; Mullins, S. M.; Murray, S. H. T.; Kau, J.; Komati, F.; Lindsay, R.; Matamba, I.; Mutshena, P.; Zhang, Y.

    2011-10-28

    High spin states in {sup 194}Tl, excited through the {sup 181}Ta({sup 18}O,5n) fusion evaporation reaction, were studied using the AFRODITE array at iThemba LABS. Candidate chiral bands built on the {pi}h{sub 9/2} x {nu}i{sub 13/2}{sup 1} configuration were found. Furthermore these bands were observed through a band crossing caused by the excitation of a {nu}i{sub 13/2} pair. Above the band crossing the excitation energies remain close, suggesting that chirality may persist for the four quasiparticle configuration too.

  3. Metal band drives in spacecraft mechanisms

    NASA Astrophysics Data System (ADS)

    Maus, Daryl

    1993-05-01

    Transmitting and changing the characteristics of force and stroke is a requirement in nearly all mechanisms. Examples include changing linear to rotary motion, providing a 90 deg change in direction, and amplifying stroke or force. Requirements for size, weight, efficiency and reliability create unique problems in spacecraft mechanisms. Flexible metal band and cam drive systems provide powerful solutions to these problems. Band drives, rack and pinion gears, and bell cranks are compared for effectiveness. Band drive issues are discussed including materials, bend radius, fabrication, attachment and reliability. Numerous mechanisms are shown which illustrate practical applications of band drives.

  4. Metal band drives in spacecraft mechanisms

    NASA Technical Reports Server (NTRS)

    Maus, Daryl

    1993-01-01

    Transmitting and changing the characteristics of force and stroke is a requirement in nearly all mechanisms. Examples include changing linear to rotary motion, providing a 90 deg change in direction, and amplifying stroke or force. Requirements for size, weight, efficiency and reliability create unique problems in spacecraft mechanisms. Flexible metal band and cam drive systems provide powerful solutions to these problems. Band drives, rack and pinion gears, and bell cranks are compared for effectiveness. Band drive issues are discussed including materials, bend radius, fabrication, attachment and reliability. Numerous mechanisms are shown which illustrate practical applications of band drives.

  5. Sub-band adaptive noise cancelling

    NASA Astrophysics Data System (ADS)

    Ryan, James G.; Goubran, Rafik A.

    The technique of using sub-band adaptive filters for acoustic noise suppression is examined. Simulation results are presented for experimental systems trained with white noise and colored noise for both decimated and non-decimated sub-band signals. To illustrate the usefulness of the sub-band approach for a real application, the full band and sub-band noise cancellers were applied to car data. Estimates of the input and output power spectra for the different cases are presented. It is shown that the full-band noise canceller is unable to attenuate the noise in the higher frequencies due to the low input signal power in this region. The sub-band decomposition of the input signal can significantly increase the rate as compared to a full-band implementation under certain conditions. This increase in convergence speed is manifested as an increased noise attenuation in those regions of the input spectrum with relatively low amounts of power. In addition, the sub-band processing is seen to eliminate the noise enhancement phenomenon found in acoustic noise cancellers for mobile telephony.

  6. Simultaneous dual-band radar development

    NASA Technical Reports Server (NTRS)

    Liskow, C. L.

    1974-01-01

    Efforts to design and construct an airborne imaging radar operating simultaneously at L band and X band with an all-inertial navigation system in order to form a dual-band radar system are described. The areas of development include duplex transmitters, receivers, and recorders, a control module, motion compensation for both bands, and adaptation of a commercial inertial navigation system. Installation of the system in the aircraft and flight tests are described. Circuit diagrams, performance figures, and some radar images are presented.

  7. Density of States for Warped Energy Bands

    NASA Astrophysics Data System (ADS)

    Mecholsky, Nicholas A.; Resca, Lorenzo; Pegg, Ian L.; Fornari, Marco

    2016-02-01

    Warping of energy bands can affect the density of states (DOS) in ways that can be large or subtle. Despite their potential for significant practical impacts on materials properties, these effects have not been rigorously demonstrated previously. Here we rectify this using an angular effective mass formalism that we have developed. To clarify the often confusing terminology in this field, “band warping” is precisely defined as pertaining to any multivariate energy function E(k) that does not admit a second-order differential at an isolated critical point in k-space, which we clearly distinguish from band non-parabolicity. We further describe band “corrugation” as a qualitative form of band warping that increasingly deviates from being twice differentiable at an isolated critical point. These features affect the density-of-states and other parameters ascribed to band warping in various ways. We demonstrate these effects, providing explicit calculations of DOS and their effective masses for warped energy dispersions originally derived by Kittel and others. Other physical and mathematical examples are provided to demonstrate fundamental distinctions that must be drawn between DOS contributions that originate from band warping and contributions that derive from band non-parabolicity. For some non-degenerate bands in thermoelectric materials, this may have profound consequences of practical interest.

  8. Density of States for Warped Energy Bands

    PubMed Central

    Mecholsky, Nicholas A.; Resca, Lorenzo; Pegg, Ian L.; Fornari, Marco

    2016-01-01

    Warping of energy bands can affect the density of states (DOS) in ways that can be large or subtle. Despite their potential for significant practical impacts on materials properties, these effects have not been rigorously demonstrated previously. Here we rectify this using an angular effective mass formalism that we have developed. To clarify the often confusing terminology in this field, “band warping” is precisely defined as pertaining to any multivariate energy function E(k) that does not admit a second-order differential at an isolated critical point in k-space, which we clearly distinguish from band non-parabolicity. We further describe band “corrugation” as a qualitative form of band warping that increasingly deviates from being twice differentiable at an isolated critical point. These features affect the density-of-states and other parameters ascribed to band warping in various ways. We demonstrate these effects, providing explicit calculations of DOS and their effective masses for warped energy dispersions originally derived by Kittel and others. Other physical and mathematical examples are provided to demonstrate fundamental distinctions that must be drawn between DOS contributions that originate from band warping and contributions that derive from band non-parabolicity. For some non-degenerate bands in thermoelectric materials, this may have profound consequences of practical interest. PMID:26905029

  9. Magnetic resonance imaging of iliotibial band syndrome.

    PubMed

    Ekman, E F; Pope, T; Martin, D F; Curl, W W

    1994-01-01

    Seven cases of iliotibial band syndrome and the pathoanatomic findings of each, as demonstrated by magnetic resonance imaging, are presented. These findings were compared with magnetic resonance imaging scans of 10 age- and sex-matched control knees without evidence of lateral knee pain. Magnetic resonance imaging signal consistent with fluid was seen deep to the iliotibial band in the region of the lateral femoral epicondyle in five of the seven cases. Additionally, when compared with the control group, patients with iliotibial band syndrome demonstrated a significantly thicker iliotibial band over the lateral femoral epicondyle (P < 0.05). Thickness of the iliotibial band in the disease group was 5.49 +/- 2.12 mm, as opposed to 2.52 +/- 1.56 mm in the control group. Cadaveric dissections were performed on 10 normal knees to further elucidate the exact nature of the area under the iliotibial band. A potential space, i.e., a bursa, was found between the iliotibial band and the knee capsule. This series suggests that magnetic resonance imaging demonstrates objective evidence of iliotibial band syndrome and can be helpful when a definitive diagnosis is essential. Furthermore, correlated with anatomic dissection, magnetic resonance imaging identifies this as a problem within a bursa beneath the iliotibial band and not a problem within the knee joint.

  10. Proportion of recovered waterfowl bands reported

    USGS Publications Warehouse

    Geis, A.D.; Atwood, E.L.

    1961-01-01

    Data from the annual mail survey of waterfowl hunters in the United States were used to estimate the total numbers of banded waterfowl that were shot. These estimates were compared with Banding Office records to estimate the proportion of recovered bands that was reported. On the average, about two banded birds were recovered for each one reported. The proportion reported was higher for some areas and for some species than for others. The proportion reported was higher when more of the reports came through employees of conservation agencies.

  11. Band engineering of thermoelectric materials.

    PubMed

    Pei, Yanzhong; Wang, Heng; Snyder, G J

    2012-12-01

    Lead chalcogenides have long been used for space-based and thermoelectric remote power generation applications, but recent discoveries have revealed a much greater potential for these materials. This renaissance of interest combined with the need for increased energy efficiency has led to active consideration of thermoelectrics for practical waste heat recovery systems-such as the conversion of car exhaust heat into electricity. The simple high symmetry NaCl-type cubic structure, leads to several properties desirable for thermoelectricity, such as high valley degeneracy for high electrical conductivity and phonon anharmonicity for low thermal conductivity. The rich capabilities for both band structure and microstructure engineering enable a variety of approaches for achieving high thermoelectric performance in lead chalcogenides. This Review focuses on manipulation of the electronic and atomic structural features which makes up the thermoelectric quality factor. While these strategies are well demonstrated in lead chalcogenides, the principles used are equally applicable to most good thermoelectric materials that could enable improvement of thermoelectric devices from niche applications into the mainstream of energy technologies. PMID:23074043

  12. Band engineering of thermoelectric materials.

    PubMed

    Pei, Yanzhong; Wang, Heng; Snyder, G J

    2012-12-01

    Lead chalcogenides have long been used for space-based and thermoelectric remote power generation applications, but recent discoveries have revealed a much greater potential for these materials. This renaissance of interest combined with the need for increased energy efficiency has led to active consideration of thermoelectrics for practical waste heat recovery systems-such as the conversion of car exhaust heat into electricity. The simple high symmetry NaCl-type cubic structure, leads to several properties desirable for thermoelectricity, such as high valley degeneracy for high electrical conductivity and phonon anharmonicity for low thermal conductivity. The rich capabilities for both band structure and microstructure engineering enable a variety of approaches for achieving high thermoelectric performance in lead chalcogenides. This Review focuses on manipulation of the electronic and atomic structural features which makes up the thermoelectric quality factor. While these strategies are well demonstrated in lead chalcogenides, the principles used are equally applicable to most good thermoelectric materials that could enable improvement of thermoelectric devices from niche applications into the mainstream of energy technologies.

  13. Endoscopy of vertical banded gastroplasty.

    PubMed

    Deitel, M; Bendago, M

    1989-05-01

    Vertical banded gastroplasty is the most common operation for morbid obesity. Postoperative gastroscopy was needed 91 times in 79 of 696 patients for 1) abdominal pain (23), 2) excess vomiting (22), 3) inadequate weight loss (14), 4) excess weight loss (13), 5) and a sudden increase in eating capacity (7). A normal appearance consisted of a clean gastric channel 6.8 +/- 1.4 SD cm long, with a rosette 46.6 +/- 2.1 cm from the incisors and, with insufflation, an 11 mm scope passed through this pseudopylorus snugly, but without difficulty. In Group 1, no problem was seen in the channel, and cholecystitis was found to be the cause. In Group 2, no problem was observed in ten (poor teeth and chewing), six experienced stasis or pill ulcerations, four had bezoars (fragmented or removed with basket), and two had intraluminal mesh. In Group 3, the scope floated through too large an outlet (greater than or equal to 13 mm) in eight, and no cause was seen in six (gorgers, sweets-eaters). In Group 4, tightness or stricture resolved with dilatations (Eder-Puestow; Savary; balloon dilators) in six, but seven required re-operation. In Group 5, the scope travelled through four breakdowns in the partition and three outlets were too large. Gastroscopy viewed problems accurately, indicated treatment and suggested modifications in gastroplasty technique. PMID:2719405

  14. Broad-band beam buncher

    DOEpatents

    Goldberg, D.A.; Flood, W.S.; Arthur, A.A.; Voelker, F.

    1984-03-20

    A broad-band beam bunther is disclosed, comprising an evacuated housing, an electron gun therein for producing an electron beam, a buncher cavity having entrance and exit openings through which the beam is directed, grids across such openings, a source providing a positive DC voltage between the cavity and the electron gun, a drift tube through which the electron beam travels in passing through such cavity, grids across the ends of such drift tube, gaps being provided between the drift tube grids and the entrance and exit grids, a modulator for supplying an ultrahigh frequency modulating signal to the drift tube for producing velocity modulation of the electrons in the beam, a drift space in the housing through which the velocity modulated electron beam travels and in which the beam is bunched, and a discharge opening from such drift tube and having a grid across such opening through which the bunched electron beam is discharged into an accelerator or the like. The buncher cavity and the drift tube may be arranged to constitute an extension of a coaxial transmission line which is employed to deliver the modulating signal from a signal source. The extended transmission line may be terminated in its characteristic impedance to afford a broad-

  15. Band head spin assignment of Tl isotopes of superdeformed rotational bands

    NASA Astrophysics Data System (ADS)

    Goel, Alpana; Nair, Uma; Yadav, Archana

    2014-09-01

    The Variable Moment of Inertia (VMI) model is proposed for the assignment of band head spin of super deformed (SD) rotational bands, which in turn is helpful in the spin prediction of SD bands. The moment of inertia and stiffness parameter (C), were calculated by fitting the proposed transition energies. The calculated transition energies are highly dependent on the prescribed spins. The calculated and observed transition energies agree well when an accurate band head spin (I 0) is assigned. The results are in good agreement with other theoretical results reported in literature. In this paper, we have reported the band head spin value 16 rotational band of super deformed Tl isotopes.

  16. Band head spin assignment of Tl isotopes of superdeformed rotational bands

    NASA Astrophysics Data System (ADS)

    Goel, Alpana; Nair, Uma V. Sasidharan; Yadav, Archana

    2014-09-01

    The Variable Moment of Inertia (VMI) model is proposed for the assignment of band head spin of super deformed (SD) rotational bands, which in turn is helpful in the spin prediction of SD bands. The moment of inertia and stiffness parameter (C), were calculated by fitting the proposed transition energies. The calculated transition energies are highly dependent on the prescribed spins. The calculated and observed transition energies agree well when an accurate band head spin ( I 0) is assigned. The results are in good agreement with other theoretical results reported in literature. In this paper, we have reported the band head spin value 16 rotational band of super deformed Tl isotopes.

  17. Reward banding to determine reporting rate of recovered mourning dove bands

    USGS Publications Warehouse

    Tomlinson, R.E.

    1968-01-01

    Reward bands placed on the other leg of certain regularly banded immature mourning doves (Zenaidura macroura) were used to develop information on reporting rates of recovered dove bands. Reports from 15 widely separated sections of the United States showed considerable variation in recovery rate of doves both with and without reward bands. The overall percentages of banded doves that were reported as recovered were 9.69% for those with reward bands and 3.83% for controls. The bandreporting rate for states influenced by publicity was 66%; that for states not influenced was 32%.

  18. Plasma membrane domains participate in pH banding of Chara internodal cells.

    PubMed

    Schmölzer, Patric M; Höftberger, Margit; Foissner, Ilse

    2011-08-01

    We investigated the identity and distribution of cortical domains, stained by the endocytic marker FM 1-43, in branchlet internodal cells of the characean green algae Chara corallina and Chara braunii. Co-labeling with NBD C(6)-sphingomyelin, a plasma membrane dye, which is not internalized, confirmed their location in the plasma membrane, and co-labelling with the fluorescent pH indicator Lysotracker red indicated an acidic environment. The plasma membrane domains co-localized with the distribution of an antibody against a proton-translocating ATPase, and electron microscopic data confirmed their identity with elaborate plasma membrane invaginations known as charasomes. The average size and the distribution pattern of charasomes correlated with the pH banding pattern of the cell. Charasomes were larger and more frequent at the acidic regions than at the alkaline bands, indicating that they are involved in outward-directed proton transport. Inhibition of photosynthesis by DCMU prevented charasome formation, and incubation in pH buffers resulted in smaller, homogenously distributed charasomes irrespective of whether the pH was clamped at 5.5 or 8.5. These data indicate that the differential size and distribution of charasomes is not due to differences in external pH but reflects active, photosynthesis-dependent pH banding. The fact that pH banding recovered within several minutes in unbuffered medium, however, confirms that pH banding is also possible in cells with evenly distributed charasomes or without charasomes. Cortical mitochondria were also larger and more abundant at the acid bands, and their intimate association with charasomes and chloroplasts suggests an involvement in carbon uptake and photorespiration.

  19. Comparison of X-Band, L-Band and C-Band Radar Images in Monitoring Subsidence in Agricultural Regions

    NASA Astrophysics Data System (ADS)

    Motagh, Mahdi; Haghshenas Haghighi, Mahmud; Shamshiri, Roghaye; Esmaeili, Mustapha

    2015-05-01

    The ongoing pattern of groundwater induced land subsidence in major valleys and agricultural regions of Iran has been recently documented by several studies (e.g. [1-4]) using C-band Interferometric Synthetic Aperture Radar (InSAR) observations. In this article we present the results of our research in which we evaluated the performance of C-band, L-band and X-band SAR data, using time-series method of small baseline subset (SBAS), to retrieve long time series of ground subsidence in agricultural regions in the country. Two major groundwater basins have been selected for this purpose: (1) Rafsanjan Valley in the Kerman province of central Iran and (2) Tehran Plain (capital of Iran). We also report on our experience using dualpolarimetry (HH/VV) X-band SAR data for Persistent Scatterer (PS) deformation analysis in natural terrains subject to high rate of deformation.

  20. 47 CFR 90.1213 - Band plan.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Band plan. 90.1213 Section 90.1213 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES PRIVATE LAND... § 90.1213 Band plan. The following channel center frequencies are permitted to be aggregated...