WorldWideScience

Sample records for attachment iii sample

  1. 32 CFR Attachment 3 to Part 2800 - Sample

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Sample 3 Attachment 3 to Part 2800 National Defense Other Regulations Relating to National Defense OFFICE OF THE VICE PRESIDENT OF THE UNITED STATES SECURITY PROCEDURES Pt. 2800, Att. 3 Attachment 3 to Part 2800—Sample EC25OC91.012...

  2. 32 CFR Attachment 5 to Part 855 - Sample Temporary Agreement

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Sample Temporary Agreement 5 Attachment 5 to Part 855 National Defense Department of Defense (Continued) DEPARTMENT OF THE AIR FORCE AIRCRAFT CIVIL AIRCRAFT USE OF UNITED STATES AIR FORCE AIRFIELDS Pt. 855, Att. 5 Attachment 5 to Part 855—Sample...

  3. Optical properties of the Eu(III)-La(III)-complex-doped polyolefine film and rod samples

    Science.gov (United States)

    Pogreb, Roman; Popov, Oleg; Lirtsman, Vlad; Pyshkin, Oleg; Kazachkov, Alexander; Musin, Albina; Finkelshtein, Binyamin; Shmukler, Yuri; Davidov, Dan; Bormashenko, Edward

    2005-04-01

    The work is devoted to luminescent properties of trivalent lanthanide complexes dispersed in thermoplastic host matrices. Polyethylene-based film and polypropylene-based rod both doped with these complexes were manufactured using an extrusion technique. Two kinds of dopants were used: Eu(III)-thenoyltrifluoroacetone-1,10-phenanthroline complex (Eu(III)) and Eu(III)-La(III)-1,10-phenanthroline complex (Eu(III)-La(III)). Comparison was made between these samples regarding absorption, excitation, emission and a lifetime of luminescence. Dependence of emission intensity on the excitation energy was determined. Emission spectra of the films were studied at room and helium temperatures. Optical properties of Eu(III) samples are different from Eu(III)-La(III) samples. Significant difference in spectra of these two types of samples may be attributed to the La(III) action.

  4. Attachment Discontinuity in a High-Risk Sample

    OpenAIRE

    Ryzin, Mark J. Van; Carlson, Elizabeth A.; Sroufe, L. Alan

    2011-01-01

    In this study, we evaluated complex patterns of attachment discontinuity across time in 133 individuals from the Minnesota Study of Risk and Adaptation. In addition to individuals who were either insecure or secure across infancy, late adolescence, and adulthood (Stably Insecure and Stably Secure, respectively), we found three additional groups: Infant/Adolescent Secure, Infant/Adult Secure, and Infant-only Secure. Changes in attachment representations in these groups across time corresponded...

  5. Attachment discontinuity in a high-risk sample.

    Science.gov (United States)

    Van Ryzin, Mark J; Carlson, Elizabeth A; Sroufe, L Alan

    2011-07-01

    In this study, we evaluated complex patterns of attachment discontinuity across time in 133 individuals from the Minnesota Study of Risk and Adaptation. In addition to individuals who were either insecure or secure across infancy, late adolescence, and adulthood (Stably Insecure and Stably Secure, respectively), we found three additional groups: Infant/Adolescent Secure, Infant/Adult Secure, and Infant-only Secure. Changes in attachment representations in these groups across time corresponded to stresses and supports in the socio-emotional context. The two groups classified as secure in adulthood (Stably Secure and Infant/Adult Secure) experienced more positive relationship-based outcomes than the other three groups. Our results suggest that continuity may be a reflection of a stable social context as much as it is an artifact of early working models, and illustrate "homeorhetic" pathways of development, in which not only the direction but the length of a developmental pathway can constrain future developmental trajectories. PMID:21718224

  6. Testing For Measurement Invariance of Attachment Across Chinese and American Adolescent Samples.

    Science.gov (United States)

    Ren, Ling; Zhao, Jihong Solomon; He, Ni Phil; Marshall, Ineke Haen; Zhang, Hongwei; Zhao, Ruohui; Jin, Cheng

    2016-06-01

    Adolescent attachment to formal and informal institutions has emerged as a major focus of criminological theories since the publication of Hirschi's work in 1969. This study attempts to examine the psychometric equivalence of the factorial structure of attachment measures across nations reflecting Western and Eastern cultures. Twelve manifest variables are used tapping the concepts of adolescent attachment to parents, school, and neighborhood. Confirmatory factor analysis is used to conduct invariance test across approximately 3,000 Chinese and U.S. adolescents. Results provide strong support for a three-factor model; the multigroup invariance tests reveal mixed results. While the family attachment measure appears invariant between the two samples, significant differences in the coefficients of the factor loadings are detected in the school attachment and neighborhood attachment measures. The results of regression analyses lend support to the predictive validity of three types of attachment. Finally, the limitations of the study are discussed.

  7. Is It Attachment Style or Socio-Demography: Singlehood in a Representative Sample

    OpenAIRE

    Petrowski, Katja; Schurig, Susan; Schmutzer, Gabriele; Brähler, Elmar; Stöbel-Richter, Yve

    2015-01-01

    Since the percentage of single adults is steadily increasing, the reasons for this development have become a matter of growing interest. Hereby, an individual’s attachment style may have a connection to the partnership status. In the following analysis, attachment style, gender, age, education, and income were compared in regard to the partnership status. Furthermore, an analysis of variance was computed to compare the attachment style within different groups. In 2012, a sample of 1,676 repre...

  8. Attachments

    International Nuclear Information System (INIS)

    In this attachment to the Annual report 1999 of the Nuclear Regulatory Authority of the Slovak Republic (UJD) the economic and personnel data of the UJD, used abbreviations, as well as the International nuclear event scales - INES are presented. Professional level of staff of the UJD is influenced by the education structure of its staff, when nearly 75% of the total number of staff has a university degree. A of 31.12.1999 there were 79 employees as average calculated number. Financing of the regulator in 1999 was mainly provided from the state budget, which represented 96% of all expenditures. The total volume of expenditures for UJD activity funded from the state budget achieved as of 31.12.1999 Slovak crowns (SK) 67 067 thousands. In the main category of expenditures an amount of SK 63 499 thous. was used for current activities, and the difference of SK 3 587 thous. was used for raising capital assets. Significant increase expenditures in the evaluated year compared to the 1998 was caused by a special purpose payment made by the Slovakia into the Fund for reconstruction of the Chernobyl cover (SK 19 996 thous.) funded through the budget chapter of the regulator. In the structure of current expenditures the highest share is taken by current transfers to abroad in total of SK 22 543 thous., i.e. contribution to reconstruction of Chernobyl cover made to the EBRD and contributions to the Fund of Technical Co-operation of the IAEA. For procurement of goods and services an amount of SK 19 814 thous. was spent, of which SK 7 054 thous. was used for funding science and technology tasks which were contracted out. The decision-making process in performing state supervision forced UJD to contact out various expert opinions and studies, for which UJD paid SK 2 058 thous. in total. Other expenditures in a volume of SK 10 702 thous. represent travel expenses, goods and services for UJD, rent for offices and other inevitable expenses. Salaries of staff represented SK 15 953

  9. Parental PTSD, adverse parenting and child attachment in a refugee sample.

    Science.gov (United States)

    van Ee, Elisa; Kleber, Rolf J; Jongmans, Marian J; Mooren, Trudy T M; Out, Dorothee

    2016-01-01

    In contrast with traumatic experiences, there is a dearth of studies on the link between trauma symptoms, disconnected (frightened, threatening and dissociative) parenting behavior, extremely insensitive parenting behavior and child attachment. This study extends previous work on the impact of posttraumatic stress disorder (PTSD) on families by studying the unique contribution of disconnected and extremely insensitive parenting behavior on child attachment in a highly traumatized sample of 68 asylum seekers and refugees and their children (18-42 months). The results show that parental symptoms of PTSD are directly related to children's insecure attachment and disorganized attachment. The greatest proportion of the risk could be attributed to factors related to the dyad and not the family. A mediation effect of adverse parenting behavior was not confirmed. On the one hand the results indicate the need for an effective treatment of PTSD symptomatology while on the other hand the results indicate the need for clinical attention to insecure attachment relationships. PMID:26982876

  10. Spectroscopy of PTCDA attached to rare gas samples: clusters vs. bulk matrices. I. Absorption spectroscopy

    OpenAIRE

    Dvorak, M.; Müller, M; Knoblauch, T.; Bünermann, O.; Rydlo, A.; Minniberger, S.; Harbich, W.; Stienkemeier, F.

    2012-01-01

    The interaction between PTCDA (3,4,9,10-perylene-tetracarboxylic-dianhydride) and rare gas or para-hydrogen samples is studied by means of laser-induced fluorescence excitation spectroscopy. The comparison between spectra of PTCDA embedded in a neon matrix and spectra attached to large neon clusters shows that these large organic molecules reside on the surface of the clusters when doped by the pick-up technique. PTCDA molecules can adopt different conformations when attached to argon, neon a...

  11. The contribution of social rank and attachment theory to depression in a non clinical sample of adolescents

    OpenAIRE

    Puissant, Sylvia Pinna; Gauthier, Jean-Marie; Van Oirbeek, R. KUL

    2011-01-01

    This study explores the relative contribution of the overall quality of attachment to the mother, to the father and to peers (Inventory of Parent and Peer Attachment scales), the style of attachment towards peers (Attachment Questionnaire for Children scale), the social rank variables (submissive behavior and social comparison), and sex and age variables in predicting the depression score (Center of Epidemiological Studies Depression Scale) on a non-psychiatric sample of 13-18 year old adoles...

  12. Mentalizing Language Development in a Longitudinal Attachment Sample: Implications for Alexithymia

    OpenAIRE

    Lemche, Erwin; Klann-Delius, Gisela; Koch, Rainer; Joraschky, Peter

    2014-01-01

    Background: The construct of alexithymia implies a deficit in symbolization for emotional, somatic, and mental states. However, the etiologic factors for alexithymia have not yet been fully elucidated. The present study investigated the use of mentalizing language, i.e. the utterance of internal states, from a developmental perspective according to attachment organization and disorganization. Methods: A longitudinal design across 4 time points was applied to a volunteer sample of 42 children....

  13. SLSF loop handling system. Volume III. AISC code evaluations and analysis of critical attachments

    International Nuclear Information System (INIS)

    SLSF loop handling system was analyzed for deadweight and postulated dynamic loading conditions using a linear elastic static equivalent method of stress analysis. Stress computations of Cradle and critical attachments per AISC Code guidelines are presented. HFEF is credited with in-depth review of initial phase of work

  14. Intrinsic alignments of SDSS-III BOSS LOWZ sample galaxies

    CERN Document Server

    Singh, Sukhdeep; More, Surhud

    2014-01-01

    Intrinsic alignments (IA) of galaxies, i.e. correlations of galaxy shapes with each other or with the density field, are a major astrophysical source of contamination for weak lensing surveys. We present the results of IA measurements of galaxies on 0.1- 200 Mpc/h scales using the SDSS-III BOSS LOWZ sample, in the redshift range 0.16sample, we observe no significant redshift or color dependence of IA. We measure the halo mass of LOWZ galaxies using galaxy-galaxy lensing, and show that the mass dependence of large-scale IA is also well described by a power law. We detect variation in the scale dependence of IA with mass and luminosity, which underscores the need to use flexible templates in order to remove the IA signal. We also study the environment dependence of IA ...

  15. Spectroscopy of PTCDA attached to rare gas samples: clusters vs. bulk matrices. I. Absorption spectroscopy

    CERN Document Server

    Dvorak, M; Knoblauch, T; Bünermann, O; Rydlo, A; Minniberger, S; Harbich, W; Stienkemeier, F

    2012-01-01

    The interaction between PTCDA (3,4,9,10-perylene-tetracarboxylic-dianhydride) and rare gas or para-hydrogen samples is studied by means of laser-induced fluorescence excitation spectroscopy. The comparison between spectra of PTCDA embedded in a neon matrix and spectra attached to large neon clusters shows that these large organic molecules reside on the surface of the clusters when doped by the pick-up technique. PTCDA molecules can adopt different conformations when attached to argon, neon and para-hydrogen clusters which implies that the surface of such clusters has a well-defined structure and has not liquid or fluxional properties. Moreover, a precise analysis of the doping process of these clusters reveals that the mobility of large molecules on the cluster surface is quenched, preventing agglomeration and complex formation.

  16. Attachment from Infancy to Early Adulthood in a High-Risk Sample: Continuity, Discontinuity, and Their Correlates.

    Science.gov (United States)

    Weinfield, Nancy S.; Sroufe, L. Alan; Egeland, Byron

    2000-01-01

    Explored the stability of attachment security and representations from infancy to early adulthood in a high risk sample. Found no evidence for significant continuity between infant and adult attachment, but rather a lawful discontinuity, with many participants transitioning to insecurity. Continuous and discontinuous groups were differentiated on…

  17. Occurrence and speciation of polymeric chromium(III), monomeric chromium(III) and chromium(VI) in environmental samples.

    Science.gov (United States)

    Hu, Ligang; Cai, Yong; Jiang, Guibin

    2016-08-01

    Laboratory experiments suggest that polymeric Cr(III) could exist in aqueous solution for a relative long period of time. However, the occurrence of polymeric Cr(III) has not been reported in environmental media due partially to the lack of method for speciating polymeric Cr. We observed an unknown Cr species during the course of study on speciation of Cr in the leachates of chromated-copper-arsenate (CCA)-treated wood. Efforts were made to identify structure of the unknown Cr species. Considering the forms of Cr existed in the CCA-treated woods, we mainly focused our efforts to determine if the unknown species were polymeric Cr(III), complex of Cr/As or complex of Cr with dissolved organic matter (DOM). In order to evaluate whether polymeric Cr(III) largely exist in wood leachates, high performance liquid chromatography coupled with inductively coupled mass spectrometry (HPLC-ICPMS was used) for simultaneous speciation of monomeric Cr(III), polymeric Cr(III), and Cr(VI). In addition to wood leachates where polymeric Cr (III) ranged from 39.1 to 67.4%, occurrence of the unknown Cr species in other environmental matrices, including surface waters, tap and waste waters, was also investigated. It was found that polymeric Cr(III) could exist in environmental samples containing μg/L level of Cr, at a level up to 60% of total Cr, suggesting that polymeric Cr(III) could significantly exist in natural environments. Failure in quantifying polymeric Cr(III) would lead to the underestimation of total Cr and bias in Cr speciation. The environmental implication of the presence of polymeric Cr(III) species in the environment deserves further study. PMID:27156211

  18. Interpreting change on the WAIS-III/WMS-III in clinical samples.

    Science.gov (United States)

    Iverson, G L

    2001-02-01

    Clinicians should note that there is considerable variability in the reliabilities of the index and subtest scores derived from the third editions of the Wechsler Adult Intelligence Scale (WAIS-III) and the Wechsler Memory Scale (WMS-III). The purpose of this article is to review these reliabilities and to illustrate how they can be used to interpret change in patients' performances from test to retest. The WAIS-III IQ and Index scores are consistently the most reliable scores, in terms of both internal consistency and test-retest reliability. The most internally consistent WAIS-III subtests are Vocabulary, Information, Digit Span, Matrix Reasoning, and Arithmetic. Information and Vocabulary have the highest test-retest reliability. On the WMS-III, the Auditory Immediate Index, Immediate Memory Index, Auditory Delayed Index, and General Memory Index are the most reliable, in terms of both internal consistency and test-retest reliability. The Logical Memory I and Verbal Paired Associates I subtests are the most reliable. Data from three clinical groups (i.e., Alzheimer's disease, chronic alcohol abuse, and schizophrenia) were extracted from the Technical Manual [Psychological Corporation (1997). WAIS-III/WMS-III Technical Manual. San Antonio: Harcourt Brace] for the purpose of calculating reliable change estimates. A table of confidence intervals for test-retest measurement error is provided to help the clinician determine if patients have reliably improved or deteriorated on follow-up testing.

  19. WISC-III and CAS: Which Correlates Higher with Achievement for a Clinical Sample?

    Science.gov (United States)

    Naglieri, Jack A.; De Lauder, Brianna Y.; Goldstein, Sam; Schwebech, Adam

    2006-01-01

    The relationships between Wechsler Intelligence Scale for Children-Third Edition (WISC-III) and the Cognitive Assessment System (CAS) with the Woodcock-Johnson Tests of Achievement (WJ-III) were examined for a sample of 119 children (87 males and 32 females) ages 6 to 16. The sample was comprised of children who were referred to a specialty clinic…

  20. 40 CFR Appendix III to Part 600 - Sample Fuel Economy Label Calculation

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 29 2010-07-01 2010-07-01 false Sample Fuel Economy Label Calculation...) ENERGY POLICY FUEL ECONOMY AND CARBON-RELATED EXHAUST EMISSIONS OF MOTOR VEHICLES Pt. 600, App. III Appendix III to Part 600—Sample Fuel Economy Label Calculation Suppose that a manufacturer called...

  1. The relationship between attachment, personality and antisocial tendencies in a prison sample: a pilot study.

    Science.gov (United States)

    Hansen, Anita Lill; Waage, Leif; Eid, Jarle; Johnsen, Bjørn Helge; Hart, Stephen

    2011-06-01

    This study examined the role of adult attachment and personality in relation to antisocial tendencies (i.e. convictions for violence and interpersonal problems in romantic relationships) in Norwegian prison inmates (N=92). Attachment styles and personality were measured using self-report questionnaires (RSQ; Griffin & Bartholomew, 1994; and NEO-FFI, Costa & McCrae, 1992a). The prison inmates scored higher on avoidant than on anxious attachment style. While age and agreeableness (negatively associated) emerged as significant predictors of violence, anxious attachment explained most of the variances in aggression in intimate relationships. The study suggests that different types of antisocial tendencies could have different attachment and general personality correlates.

  2. On the metallicity of open clusters. III. Homogenised sample

    CERN Document Server

    Netopil, M; Heiter, U; Soubiran, C

    2016-01-01

    Open clusters are known as excellent tools for various topics in Galactic research. For example, they allow accurately tracing the chemical structure of the Galactic disc. However, the metallicity is known only for a rather low percentage of the open cluster population, and these values are based on a variety of methods and data. Therefore, a large and homogeneous sample is highly desirable. In the third part of our series we compile a large sample of homogenised open cluster metallicities using a wide variety of different sources. These data and a sample of Cepheids are used to investigate the radial metallicity gradient, age effects, and to test current models. We used photometric and spectroscopic data to derive cluster metallicities. The different sources were checked and tested for possible offsets and correlations. In total, metallicities for 172 open cluster were derived. We used the spectroscopic data of 100 objects for a study of the radial metallicity distribution and the age-metallicity relation. W...

  3. A confirmatory factor analysis of the WMS-III in a clinical sample with crossvalidation in the standardization sample.

    Science.gov (United States)

    Bradley Burton, D; Ryan, Joseph J; Axelrod, Bradley N; Schellenberger, Tony; Richards, Heather M

    2003-08-01

    A maximum likelihood confirmatory factor analysis (CFA) of the Wechsler Memory Scale-III (WMS-III) was performed by applying LISREL 8 to a general clinical sample (n=281). Analyses were designed to determine which of seven hypothesized oblique factor solutions could best explain memory as measured by the WMS-III. Competing latent variable models were identified in previous studies. Results in the clinical sample were crossvalidated by testing all models in the WMS-III standardization samples (combined n=1,250). Findings in both the clinical and standardization samples supported a four-factor model containing auditory memory, visual memory, working memory, and learning factors. Our analysis differed from that presented in the WMS-III manual and by other authors. We tested our models in a clinical sample and included selected word list subtests in order to test the viability of a learning dimension. Consistent with prior research, we were also unable to empirically support the viability of the immediate and delayed memory indices, despite allowing the error terms between the immediate and delayed memory subtests to correlate.

  4. On the metallicity of open clusters. III. Homogenised sample

    Science.gov (United States)

    Netopil, M.; Paunzen, E.; Heiter, U.; Soubiran, C.

    2016-01-01

    Context. Open clusters are known as excellent tools for various topics in Galactic research. For example, they allow accurately tracing the chemical structure of the Galactic disc. However, the metallicity is known only for a rather low percentage of the open cluster population, and these values are based on a variety of methods and data. Therefore, a large and homogeneous sample is highly desirable. Aims: In the third part of our series we compile a large sample of homogenised open cluster metallicities using a wide variety of different sources. These data and a sample of Cepheids are used to investigate the radial metallicity gradient, age effects, and to test current models. Methods: We used photometric and spectroscopic data to derive cluster metallicities. The different sources were checked and tested for possible offsets and correlations. Results: In total, metallicities for 172 open cluster were derived. We used the spectroscopic data of 100 objects for a study of the radial metallicity distribution and the age-metallicity relation. We found a possible increase of metallicity with age, which, if confirmed, would provide observational evidence for radial migration. Although a statistical significance is given, more studies are certainly needed to exclude selection effects, for example. The comparison of open clusters and Cepheids with recent Galactic models agrees well in general. However, the models do not reproduce the flat gradient of the open clusters in the outer disc. Thus, the effect of radial migration is either underestimated in the models, or an additional mechanism is at work. Conclusions: Apart from the Cepheids, open clusters are the best tracers for metallicity over large Galactocentric distances in the Milky Way. For a sound statistical analysis, a sufficiently large and homogeneous sample of cluster metallicities is needed. Our compilation is currently by far the largest and provides the basis for several basic studies such as the statistical

  5. Is it attachment style or socio-demography: Singlehood in a representative sample

    OpenAIRE

    Katja ePetrowski; Susan eSchurig; Gabriele eSchmutzer; Elmar eBrähler; Yve eStöbel-Richter

    2015-01-01

    Since the percentage of single adults is steadily increasing, the reasons for this development have become a matter of growing interest. Hereby, an individual’s attachment style has come under close scrutiny in the context of its possible association to the partnership status.In the current study, a comparison of an individual’s attachment style, gender, age, education, and income was carried out in regard to the partnership status. Furthermore, an analysis of variance was computed to compare...

  6. Effectiveness of attachment based STEEP™ intervention in a German high-risk sample.

    Science.gov (United States)

    Suess, G J; Bohlen, U; Carlson, E A; Spangler, G; Frumentia Maier, M

    2016-10-01

    STEEP(TM) was one of the first attachment-based early intervention programs. The program applied findings from the Minnesota Longitudinal Study on Risk and Adaptation to the development of a supportive program for young high-risk mothers and their infants. STEEP's effectiveness was evaluated first in a randomized controlled study launched in 1987. The study showed effects of the one-year intervention on important individual and parenting variables, but not on quality of mother-infant attachment. In the current German study with young mothers at risk for abuse and neglect, a two-year adaptation of STEEP was evaluated within a quasi-experimental design. STEEP mother-infant pairs (N = 78) were compared with pairs who received standard services of the German Child Welfare System (GCWS, N = 29). Compared with GCWS pairs, significantly more mother-infant pairs in the intervention group showed secure attachment patterns in Ainsworth´s Strange Situation when the infants were 12 months of age. At the end of the intervention (infant age = 24 month), attachment security scores derived from Waters' Attachment Q-Sort were in the predicted direction and showed a medium effect size, but did not reach criteria of statistical significance. At both time points, the STEEP group showed significantly fewer signs of attachment disorganization than the comparison group.

  7. Effectiveness of attachment based STEEP™ intervention in a German high-risk sample.

    Science.gov (United States)

    Suess, G J; Bohlen, U; Carlson, E A; Spangler, G; Frumentia Maier, M

    2016-10-01

    STEEP(TM) was one of the first attachment-based early intervention programs. The program applied findings from the Minnesota Longitudinal Study on Risk and Adaptation to the development of a supportive program for young high-risk mothers and their infants. STEEP's effectiveness was evaluated first in a randomized controlled study launched in 1987. The study showed effects of the one-year intervention on important individual and parenting variables, but not on quality of mother-infant attachment. In the current German study with young mothers at risk for abuse and neglect, a two-year adaptation of STEEP was evaluated within a quasi-experimental design. STEEP mother-infant pairs (N = 78) were compared with pairs who received standard services of the German Child Welfare System (GCWS, N = 29). Compared with GCWS pairs, significantly more mother-infant pairs in the intervention group showed secure attachment patterns in Ainsworth´s Strange Situation when the infants were 12 months of age. At the end of the intervention (infant age = 24 month), attachment security scores derived from Waters' Attachment Q-Sort were in the predicted direction and showed a medium effect size, but did not reach criteria of statistical significance. At both time points, the STEEP group showed significantly fewer signs of attachment disorganization than the comparison group. PMID:27035267

  8. Another Look Inside the Gap: Ecological Contributions to the Transmission of Attachment in a Sample of Adolescent Mother-Infant Dyads

    Science.gov (United States)

    Tarabulsy, George M.; Bernier, Annie; Provost, Marc A.; Maranda, Johanne; Larose, Simon; Moss, Ellen; Larose, Marie; Tessier, Rejean

    2005-01-01

    Ecological contributions to attachment transmission were studied in a sample of 64 adolescent mother-infant dyads. Maternal sensitivity was assessed when infants were 6 and 10 months old, and infant security was assessed at 15 and 18 months. Maternal attachment state of mind was measured with the Adult Attachment Interview (AAI) after the 1st…

  9. Attachment Styles, Perceived Stress and Social Support in a Malaysian Young Adults Sample

    Directory of Open Access Journals (Sweden)

    Siamak Khodarahimi

    2016-03-01

    Full Text Available The purpose of this research was to examine the validity of an adult attachment style questionnaire, to understand the relationships between the type of attachment style in relation to self-perceived stress and social support, and to investigate the influence of gender, ethnicity and religion on the above constructs. The participants were 308 university students from Malaysia. A demographic questionnaire and three self-report inventories were administrated in this study. The data indicated that the Relationship Scales Questionnaire (RSQ is a multidimensional construct with nine factors: “dismissing,” “preoccupied with romance,” “preoccupied with close relationships,” “fearful,” “preoccupied with dependency,” “secure emotional,” ”comfortable depending,” “preoccupied with mistrust” and “mutual secure.” Different attachment styles were positively or negatively correlated at a significant level with perceived stress and social support. Attachment styles were explained by 20 and 33% of the total variance in self-perceived stress and perceived social support, respectively. There were significant gender, ethnic and religious differences in attachment styles, perceived stress and social support.

  10. Heat-treated Saccharomyces cerevisiae for antimony speciation and antimony(III) preconcentration in water samples

    International Nuclear Information System (INIS)

    An analytical method was developed for antimony speciation and antimony(III) preconcentration in water samples. The method is based on the selective retention of Sb(III) by modified Saccharomyces cerevisiae in the presence of Sb(V). Heat, caustic and solvent pretreatments of the biomass were investigated to improve the kinetics and thermodynamics of Sb(III) uptake process at room temperature. Heating for 30 min at 80 deg. C was defined as the optimal treatment. Antimony accumulation by the cells was independent of pH (5-10) and ionic strength (0.01-0.1 mol L-1). 140 mg of yeast and 2 h of contact were necessary to ensure quantitative sequestration of Sb(III) up to 750 μg L-1. In these conditions, Sb(V) was not retained. Sb(V) was quantified in sorption supernatant by inductively coupled plasma mass spectrometry (ICP-MS) or inductively coupled plasma optical emission spectrometry (ICP-OES). Sb(III) was determined after elution with 40 mmol L-1 thioglycolic acid at pH 10. A preconcentration factor close to nine was achieved for Sb(III) when 100 mL of sample was processed. After preconcentration, the detection limits for Sb(III) and Sb(V) were 2 and 5 ng L-1, respectively, using ICP-MS, 7 and 0.9 μg L-1 using ICP-OES. The proposed method was successfully applied to the determination of Sb(III) and Sb(V) in spiked river and mineral water samples. The relative standard deviations (n = 3) were in the 2-5% range at the tenth μg L-1 level and less than 10% at the lowest Sb(III) and Sb(V) tested concentration (0.1 μg L-1). Corrected recoveries were in all cases close to 100%

  11. Adult attachment, intimacy and psychological distress in a clinical and community sample

    NARCIS (Netherlands)

    Pielage, SB; Luteijn, F; Arrindell, WA

    2005-01-01

    Attachment theory predicts that early experiences with caregivers affect the quality of individuals' later (romantic) relationships and, consequently, their mental health. The present study examined the role of intimacy in the current romantic relationship as a possible mediator of the relationship

  12. Attachment, Obsessive Beliefs and Emotion Dysregulation in Obsessive Compulsive Disorder: A comparison with Normal and Clinical Sample

    Directory of Open Access Journals (Sweden)

    Sevginar Vatan

    2016-06-01

    Full Text Available Objective: The present study aimed at investigating the differences between nonclinical sample and clinical sample (OCD patients in attachment, obsessive beliefs and emotion regulation in Turkish sample. Methods: For these purposes 224 non clinical participants and 101 clinical OCD participants completed questionnaires related to research variables. Experience in Close Relationship Scale (Fraley, Waller & Brennan, 2000 to evaluate attachment, Obsessive Belief Questionnaire to evaluate obsessive beliefs and Difficulties of Emotion Regulation Scale (Gratz & Roemer, 2004 to evaluate emotion regulation abilities were used in this study. Results: A series of t-test for independent samples analyses were done. Findings of the analyses revealed that there was significant differences between two groups in anxiety level of attachment, but not in avoidance level. Also there were significant differences between two groups in all obsessive beliefs subscales such as responsibility and threat perception, perfectionism and need of certainty, the importance of thoughts and control. From emotional regulation perspective there were significant differences in non-acceptance of emotional response, difficulties in engaging goal-directed behavior, impulse control difficulties during emotional distress, limited access to emotional regulation strategies. However there was not significant differences between two groups in clarity about emotions and awareness of emotional arousal. Conclusion: To sum up according to results of this study attachment and obsessive beliefs follow the same pattern with the results in the literature. Moreover the difficulties of emotion regulation abilities thought to improve the knowledge about OCD. Because this part believed not to have enough findings in the OCD literature. The results were discussed in the light of the related literature and dependent recommendations to the area were given.

  13. Heat-treated Saccharomyces cerevisiae for antimony speciation and antimony(III) preconcentration in water samples

    Energy Technology Data Exchange (ETDEWEB)

    Marcellino, Sebastien [Universite de Lyon, Lyon1, Laboratoire des Sciences Analytiques, CNRS UMR 5180, bat CPE, 43, boulevard du 11 novembre 1918, 69622 Villeurbanne cedex (France); Attar, Hossein [Universite Louis Pasteur de Strasbourg, Laboratoire de Chimie Analytique et Sciences Separatives, CNRS UMR 7178, ECPM, 25 rue Becquerel 67087 Strasbourg (France); Lievremont, Didier; Lett, Marie-Claire [Universite Louis Pasteur de Strasbourg, Laboratoire de Genetique Moleculaire, Genetique et Microbiologie, CNRS UMR 7156, 28 rue Goethe, 67000 Strasbourg (France); Barbier, Frederique [CNRS USR 59, Service Central d' Analyse, 59 Chemin du Canal BP22 69390 Vernaison (France); Lagarde, Florence [Universite de Lyon, Lyon1, Laboratoire des Sciences Analytiques, CNRS UMR 5180, bat CPE, 43, boulevard du 11 novembre 1918, 69622 Villeurbanne cedex (France); Universite Louis Pasteur de Strasbourg, Laboratoire de Chimie Analytique et Sciences Separatives, CNRS UMR 7178, ECPM, 25 rue Becquerel 67087 Strasbourg (France)], E-mail: florence.lagarde@univ-lyon1.fr

    2008-11-23

    An analytical method was developed for antimony speciation and antimony(III) preconcentration in water samples. The method is based on the selective retention of Sb(III) by modified Saccharomyces cerevisiae in the presence of Sb(V). Heat, caustic and solvent pretreatments of the biomass were investigated to improve the kinetics and thermodynamics of Sb(III) uptake process at room temperature. Heating for 30 min at 80 deg. C was defined as the optimal treatment. Antimony accumulation by the cells was independent of pH (5-10) and ionic strength (0.01-0.1 mol L{sup -1}). 140 mg of yeast and 2 h of contact were necessary to ensure quantitative sequestration of Sb(III) up to 750 {mu}g L{sup -1}. In these conditions, Sb(V) was not retained. Sb(V) was quantified in sorption supernatant by inductively coupled plasma mass spectrometry (ICP-MS) or inductively coupled plasma optical emission spectrometry (ICP-OES). Sb(III) was determined after elution with 40 mmol L{sup -1} thioglycolic acid at pH 10. A preconcentration factor close to nine was achieved for Sb(III) when 100 mL of sample was processed. After preconcentration, the detection limits for Sb(III) and Sb(V) were 2 and 5 ng L{sup -1}, respectively, using ICP-MS, 7 and 0.9 {mu}g L{sup -1} using ICP-OES. The proposed method was successfully applied to the determination of Sb(III) and Sb(V) in spiked river and mineral water samples. The relative standard deviations (n = 3) were in the 2-5% range at the tenth {mu}g L{sup -1} level and less than 10% at the lowest Sb(III) and Sb(V) tested concentration (0.1 {mu}g L{sup -1}). Corrected recoveries were in all cases close to 100%.

  14. A new ion-selective electrode based on aluminium tungstate for Fe(III) determination in rock sample, pharmaceutical sample and water sample

    Indian Academy of Sciences (India)

    Mu Naushad

    2008-12-01

    An inorganic cation exchanger, aluminum tungstate (AT), has been synthesized by adding 0.1 M sodium tungstate gradually into 0.1 M aluminium nitrate at pH 1.2 with continuous stirring. The ion exchange capacity for Na+ ion and distribution coefficients of various metal ions was determined on the column of aluminium tungstate. The distribution studies of various metal ions showed the selectivity of Fe(III) ions by this cation exchange material. So, a Fe(III) ion-selective membrane electrode was prepared by using this cation exchange material as an electroactive material. The effect of plasticizers viz. dibutyl phthalate (DBP), dioctylphthalate (DOP), di-(butyl) butyl phosphate (DBBP) and tris-(2-ethylhexylphosphate) (TEHP), has also been studied on the performance of membrane sensor. It was observed that the membrane containing the composition AT: PVC: DBP in the ratio 2 : 20 : 15 displayed a useful analytical response with excellent reproducibility, low detection limit, wide working pH range (1–3.5), quick response time (15 s) and applicability over a wide concentration range of Fe(III) ions from 1 × 10-7 M to 1 × 10-1 M with a slope of 20 ± 1 mV per decade. The selectivity coefficients were determined by the mixed solution method and revealed that the electrode was selective for Fe(III) ions in the presence of interfering ions. The electrode was used for atleast 5 months without any considerable divergence in response characteristics. The constructed sensor was used as indicator electrode in the potentiometric titration of Fe(III) ions against EDTA and Fe(III) determination in rock sample, pharmaceutical sample and water sample. The results are found to be in good agreement with those obtained by using conventional methods.

  15. EMP Attachment 1 DOE-SC PNNL Site Sampling and Analysis Plan

    Energy Technology Data Exchange (ETDEWEB)

    Meier, Kirsten M.

    2011-11-10

    This Sampling and Analysis Plan (SAP) is written for the radiological environmental air surveillance program for the DOE-SC PNNL Site, Richland Washington. It provides the requirements for planning sampling events, and the requirements imposed on the analytical laboratory analyzing the air samples. The actual air sampling process is in procedure EPRP-AIR-029. The rationale for analyte selection, media, and sampling site location has been vetted through the data quality objectives (DQO) process (Barnett et al. 2010). The results from the DQO process have been reviewed and approved by the Washington State Department of Health. The DQO process (Barnett et al. 2010) identified seven specific radionuclides for analysis along with the need for gross alpha and gross beta radiological analyses. The analytes are {sup 241}Am, {sup 243}Am, {sup 244}Cm, {sup 60}Co, {sup 238}Pu, {sup 239}Pu, and {sup 233}U. The report also determined that air samples for particulates are the only sample matrix required for the monitoring program. These samples are collected on 47-mm glass-fiber filters.

  16. Improved Spectrophotometric Calibration of the SDSS-III BOSS Quasar Sample

    OpenAIRE

    Margala, Daniel; Kirkby, David; Dawson, Kyle; Bailey, Stephen; Blanton, Michael; Schneider, Donald P.

    2015-01-01

    We present a model for spectrophotometric calibration errors in observations of quasars from the third generation of the Sloan Digital Sky Survey (SDSS-III) Baryon Oscillation Spectroscopic Survey (BOSS) and describe the correction procedure we have developed and applied to this sample. Calibration errors are primarily due to atmospheric differential refraction and guiding offsets during each exposure. The corrections potentially reduce the systematics for any studies of BOSS quasars, includi...

  17. SAFOD Phase III Core Sampling and Data Management at the Gulf Coast Repository

    Directory of Open Access Journals (Sweden)

    David Lockner

    2011-03-01

    Full Text Available The San Andreas Fault Observatory at Depth (SAFODproject is yielding new insight into the San Andreas Fault (Zoback et al., 2010; Zoback et al., this issue. SAFOD drilling started in 2002 with a pilot hole, and proceeded with three phrases of drilling and coring during the summers of 2004, 2005, and 2007 (Fig. 1. One key component of theproject is curation, sampling, and documentation of SAFOD core usage at the Integrated Ocean Drilling Program’s (IODP Gulf Coast Repository (GCR at Texas A&M University. We present here the milestones accomplished over the past two years of sampling Phase III core at the GCR.

  18. Spectroscopy of PTCDA attached to rare gas samples: clusters vs. bulk matrices. II. Fluorescence emission spectroscopy

    OpenAIRE

    Dvorak, M.; Müller, M; Knoblauch, T.; Bünermann, O.; Rydlo, A.; Minniberger, S.; Harbich, W.; Stienkemeier, F.

    2012-01-01

    The interaction between PTCDA (3,4,9,10-perylene-tetracarboxylic-dianhydride) molecules and solid rare gas samples is studied by means of fluorescence emission spectroscopy. On the one hand, laser-excited PTCDA-doped large argon, neon and para-hydrogen clusters in comparison with PTCDA embedded in helium nanodroplets are spectroscopically characterized with respect to line broadening and shifting. A fast non-radiative relaxation is observed before a radiative decay in the electronic ground st...

  19. Cd-Cysteine Nanorods as a Fluorescence Sensor for Determination of Fe (III) in Real Samples.

    Science.gov (United States)

    Ghiamati, Ebrahim; Boroujerdi, Ramin

    2016-01-01

    A new Cd-Cysteine complex nanorods (Cd-Cys NRs) were synthesized in one step at room temperature, and its morphology, structure and spectral properties were characterized by transmission electron microscopy (TEM), elemental analysis (EA), X-Ray diffraction (XRD), solid state and normal UV-Vis, Fourier transform infrared (FTIR) and spectrofluorometry. The developed Cd-Cys NRs were used as a fluorescence sensor for detection of Fe (III) in different aqueous matrices. The selectivity and sensitivity of the fabricated nano-sensor based on its fluorescence quenching in the presence of Fe (III) were probed according to the Stern-Volmer equation. The detection limit of the method was in micro-molar per liter range. Cd-Cys NRs response tested in different complex samples such as Rosemary plant leaves, exhibited a well-defined response. Anticoagulation measurements were performed to evaluate their blood biocompatibility. PMID:26518579

  20. Spectroscopy of PTCDA attached to rare gas samples: clusters vs. bulk matrices. II. Fluorescence emission spectroscopy

    CERN Document Server

    Dvorak, M; Knoblauch, T; Bünermann, O; Rydlo, A; Minniberger, S; Harbich, W; Stienkemeier, F

    2012-01-01

    The interaction between PTCDA (3,4,9,10-perylene-tetracarboxylic-dianhydride) molecules and solid rare gas samples is studied by means of fluorescence emission spectroscopy. On the one hand, laser-excited PTCDA-doped large argon, neon and para-hydrogen clusters in comparison with PTCDA embedded in helium nanodroplets are spectroscopically characterized with respect to line broadening and shifting. A fast non-radiative relaxation is observed before a radiative decay in the electronic ground state takes place. On the other hand, fluorescence emission studies of PTCDA embedded in bulk neon and argon matrices results in much more complex spectral signatures characterized by a splitting of the different emission lines. These can be assigned to the appearance of site isomers of the surrounding matrix lattice structure.

  1. Spectroscopy of 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) attached to rare gas samples: Clusters vs. bulk matrices. I. Absorption spectroscopy

    OpenAIRE

    Dvorak, Matthieu; Mueller, Markus; Knoblauch, Tobias; Buenermann, Oliver; Rydlo, Alexandre; Minniberger, Stefan; Harbich, Wolfgang; Stienkemeier, Frank

    2012-01-01

    The interaction between 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) and rare gas or para-hydrogen samples is studied by means of laser-induced fluorescence excitation spectroscopy. The comparison between spectra of PTCDA embedded in a neon matrix and spectra attached to large neon clusters shows that these large organic molecules reside on the surface of the clusters when doped by the pick-up technique. PTCDA molecules can adopt different conformations when attached to argon, neon...

  2. Paternal Attachment, Parenting Beliefs and Children's Attachment

    Science.gov (United States)

    Howard, Kimberly S.

    2010-01-01

    Relationships between fathers' romantic attachment style, parenting beliefs and father-child attachment security and dependence were examined in a diverse sample of 72 fathers of young children. Paternal romantic attachment style was coded based on fathers' endorsement of a particular style represented in the Hazan and Shaver Three-Category…

  3. The Incidence of Attachment Objects and Oral Habits at Bedtime in Two Longitudinal Samples of Children Aged 1.5-7 Years.

    Science.gov (United States)

    Mahalski, Pauline A.

    1983-01-01

    Mothers in one sample were interviewed when children were 1.5, 2, and 2.5 years old, while mothers in the other sample answered questionnaires when their children were 3.5, 5, and 7 years old. Strong emotional attachment to objects and finger-sucking were most prevalent around 2 years of age. (MP)

  4. Attachment Security and Language Development in an Italian Sample: The Role of Premature Birth and Maternal Language

    Science.gov (United States)

    Costantini, Alessandro; Cassibba, Rosalinda; Coppola, Gabrielle; Castoro, Germana

    2012-01-01

    We investigated the influence of biological immaturity and attachment security on linguistic development and tested whether maternal language mediated the impact of security on the child's linguistic abilities. Forty mother-child dyads were followed longitudinally, with the child's attachment security assessed at 24 months of age through trained…

  5. Chromatographic determination of flumequine in food samples by post-column derivatisation with terbium(III)

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez-Diaz, R.C. [Department of Analytical Chemistry, ' Marie Curie Annex' Building, Campus of Rabanales, University of Cordoba, E-14071 Cordoba (Spain); Fernandez-Romero, J.M. [Department of Analytical Chemistry, ' Marie Curie Annex' Building, Campus of Rabanales, University of Cordoba, E-14071 Cordoba (Spain); Aguilar-Caballos, M.P. [Department of Analytical Chemistry, ' Marie Curie Annex' Building, Campus of Rabanales, University of Cordoba, E-14071 Cordoba (Spain); Gomez-Hens, A. [Department of Analytical Chemistry, ' Marie Curie Annex' Building, Campus of Rabanales, University of Cordoba, E-14071 Cordoba (Spain)]. E-mail: qa1gohea@uco.es

    2006-09-25

    The potential usefulness of terbium(III) as reagent for the luminescent determination of flumequine residues in food samples has been studied using both fluorescence (FL) and time-resolved (TR) modes and both batch (B) and integrated liquid chromatography (LC)/derivatisation approaches. The system was optimised in each instance to establish the analytical features of the four methods. The dynamic ranges of the calibration graphs, obtained with standard solutions of flumequine, were (ng mL{sup -1}): B-FL 0.18-600; B-TR 2.4-150; LC-FL 3.7-1000 and LC-TR 52-3000. The detection limits were also obtained giving the following values (ng mL{sup -1}): B-FL 0.055; B-TR 0.7; LC-FL 1.1 and LC-TR 15. The precision, expressed as the percentage of relative standard deviation, was equal or lower than 5.1% in all instances. The LC methods, which avoid the interference of other quinolone antibiotics, were applied to the analysis of chicken muscle and liver, and whole milk samples. The sample pre-treatment only consisted of a deproteinisation step. The validation procedure for the analysis of samples was carried out using EC recommendations, and the decision limit and detection capability were calculated. The recoveries obtained ranged from 95.0% to 103.8%.

  6. A Confirmatory Factor Analytic Study of the Wechsler Memory Scale-III in an Elderly Norwegian Sample.

    Science.gov (United States)

    Bosnes, Ole; Troland, Kari; Torsheim, Torbjoern

    2016-02-01

    This study compared the factor structure of the translated Wechsler Memory Scale-III (WMS-III), which is the latest available version in Norway, with the original U.S. version. A sample of 122 healthy, elderly Norwegians (mean age: 74; standard deviation = 8.8) completed the WMS-III. The factor structure of the translated WMS-III was tested, using Confirmatory Factor Analysis, with comparison of model fit based on five a priori hypothesized models. Several model fit indices pointed to a three-factor model (working memory, visual memory, and auditory memory) providing the best fit to the data. Our study supports updated findings of the original WMS-III in nonclinical samples and suggests that the translated version is structurally equal to the original. The study supports the cross-cultural validity of the WMS-III. However, based on the present data, one might expect scores on the Family Pictures subtest to fall below scores on other WMS-III subtests in elderly Norwegians.

  7. Mind-Mindedness as a Multidimensional Construct: Appropriate and Nonattuned Mind-Related Comments Independently Predict Infant-Mother Attachment in a Socially Diverse Sample

    Science.gov (United States)

    Meins, Elizabeth; Fernyhough, Charles; de Rosnay, Marc; Arnott, Bronia; Leekam, Susan R.; Turner, Michelle

    2012-01-01

    In a socially diverse sample of 206 infant-mother pairs, we investigated predictors of infants' attachment security at 15 months, with a particular emphasis on mothers' tendency to comment appropriately or in a non-attuned manner on their 8-month-olds' internal states (so-called mind-mindedness). Multinomial logistic regression analyses showed…

  8. The influence of IQ stratification on WAIS-III/WMS-III FSIQ-general memory index discrepancy base-rates in the standardization sample.

    Science.gov (United States)

    Hawkins, K A; Tulsky, D S

    2001-11-01

    Since memory performance expectations may be IQ-based, unidirectional base rate data for IQ-Memory Score discrepancies are provided in the WAIS-III/WMS-III Technical Manual. The utility of these data partially rests on the assumption that discrepancy base rates do not vary across ability levels. FSIQ stratified base rate data generated from the standardization sample, however, demonstrate substantial variability across the IQ spectrum. A superiority of memory score over FSIQ is typical at lower IQ levels, whereas the converse is true at higher IQ levels. These data indicate that the use of IQ-memory score unstratified "simple difference" tables could lead to erroneous conclusions for clients with low or high IQ. IQ stratified standardization base rate data are provided as a complement to the "predicted difference" method detailed in the Technical Manual.

  9. Determination of traces of Sb(III) using ASV in Sb-rich water samples affected by mining

    Energy Technology Data Exchange (ETDEWEB)

    Cidu, Rosa, E-mail: cidur@unica.it; Biddau, Riccardo; Dore, Elisabetta

    2015-01-07

    Highlights: • Antimony speciation affects the toxicity of this element. • A simple method for Sb(III) analyses in Sb-rich waters was developed. • Sb(III) was determined by ASV in water stabilized with tartaric and nitric acids. • Pre-concentration and/or separation of Sb(III) prior to analysis are not required. - Abstract: Chemical speciation [Sb(V) and Sb(III)] affects the mobility, bioavailability and toxicity of antimony. In oxygenated environments Sb(V) dominates whereas thermodynamically unstable Sb(III) may occur. In this study, a simple method for the determination of Sb(III) in non acidic, oxygenated water contaminated with antimony is proposed. The determination of Sb(III) was performed by anodic stripping voltammetry (ASV, 1–20 μg L{sup −1} working range), the total antimony, Sb(tot), was determined either by inductively coupled plasma mass spectrometry (ICP-MS, 1–100 μg L{sup −1} working range) or inductively coupled plasma optical emission spectrometry (ICP-OES, 100–10,000 μg L{sup −1} working range) depending on concentration. Water samples were filtered on site through 0.45 μm pore size filters. The aliquot for determination of Sb(tot) was acidified with 1% (v/v) HNO{sub 3}. Different preservatives, namely HCl, L(+) ascorbic acid or L(+) tartaric acid plus HNO{sub 3}, were used to assess the stability of Sb(III) in synthetic solutions. The method was tested on groundwater and surface water draining the abandoned mine of Su Suergiu (Sardinia, Italy), an area heavily contaminated with Sb. The waters interacting with Sb-rich mining residues were non acidic, oxygenated, and showed extreme concentrations of Sb(tot) (up to 13,000 μg L{sup −1}), with Sb(III) <10% of total antimony. The stabilization with L(+) tartaric acid plus HNO{sub 3} appears useful for the determination of Sb(III) in oxygenated, Sb-rich waters. Due to the instability of Sb(III), analyses should be carried out within 7 days upon the water collection. The main

  10. The effects of parental sensitivity and involvement in caregiving on mother-infant and father-infant attachment in a Portuguese sample.

    Science.gov (United States)

    Fuertes, Marina; Faria, Anabela; Beeghly, Marjorie; Lopes-dos-Santos, Pedro

    2016-02-01

    In the present longitudinal study, we investigated attachment quality in Portuguese mother-infant and in father-infant dyads, and evaluated whether attachment quality was related to parental sensitivity during parent-infant social interaction or to the amount of time each parent spent with the infant during play and in routine caregiving activities (e.g., feeding, bathing, play). The sample consisted of 82 healthy full-term infants (30 girls, 53 boys, 48 first born), and their mothers and fathers from mostly middle-class households. To assess parental sensitivity, mothers and fathers were independently observed during free play interactions with their infants when infants were 9 and 15 months old. The videotaped interactions were scored by masked coders using the Crittenden's CARE-Index. When infants were 12 and 18 months old, mother-infant and father-infant dyads were videotaped during an adaptation of Ainsworth's Strange Situation. Parents also described their level of involvement in infant caregiving activities using a Portuguese version of the McBride and Mills Parent Responsibility Scale. Mothers were rated as being more sensitive than fathers during parent-infant free play at both 9 and 15 months. There also was a higher prevalence of secure attachment in mother-infant versus father-infant dyads at both 12 and 18 months. Attachment security was predicted by the amount of time mothers and fathers were involved in caregiving and play with the infant, and with parents' behavior during parent-infant free play.

  11. Examining the associations between DSM-5 section III antisocial personality disorder traits and psychopathy in community and university samples.

    Science.gov (United States)

    Anderson, Jaime L; Sellbom, Martin; Wygant, Dustin B; Salekin, Randall T; Krueger, Robert F

    2014-10-01

    The current investigation examined the associations between personality traits representing DSM-5 Section III Antisocial Personality Disorder (ASPD), its psychopathy specifier, and contemporary models of psychopathic personality disorder. We used two samples consisting of university students (n = 463) and community-dwelling participants (n = 148) recruited for subclinical psychopathic proclivities. Both samples were administered the Personality Inventory for DSM-5 (Krueger et al., 2012), Triarchic Psychopathy Measure (Patrick, 2010), and versions of the Psychopathic Personality Inventory (PPI; Lilienfeld & Widows, 2005). University students also completed the Structured Clinical Interview for DSM-IV Axis II Disorders-Personality Questionnaire (First, Gibbon, Spitzer, Williams, & Benjamin, 1997). Across both samples, the Section III ASPD traits were moderately strongly correlated with psychopathy measures, except the fearless-dominance/boldness domain. However, as would be expected, traits representing the Section III psychopathy specifier accounted for a substantial amount of variance within this domain. Furthermore, additional DSM-5 Section III personality traits augmented the characterization of psychopathy from the PPI and Triarchic perspectives.

  12. Tank vapor sampling and analysis data package for tank 241-C-106 waste retrieval sluicing system process test phase III

    Energy Technology Data Exchange (ETDEWEB)

    LOCKREM, L.L.

    1999-08-13

    This data package presents sampling data and analytical results from the March 28, 1999, vapor sampling of Hanford Site single-shell tank 241-C-106 during active sluicing. Samples were obtained from the 296-C-006 ventilation system stack and ambient air at several locations. Characterization Project Operations (CPO) was responsible for the collection of all SUMMATM canister samples. The Special Analytical Support (SAS) vapor team was responsible for the collection of all triple sorbent trap (TST), sorbent tube train (STT), polyurethane foam (PUF), and particulate filter samples collected at the 296-C-006 stack. The SAS vapor team used the non-electrical vapor sampling (NEVS) system to collect samples of the air, gases, and vapors from the 296-C-006 stack. The SAS vapor team collected and analyzed these samples for Lockheed Martin Hanford Corporation (LMHC) and Tank Waste Remediation System (TWRS) in accordance with the sampling and analytical requirements specified in the Waste Retrieval Sluicing System Vapor Sampling and Analysis Plan (SAP) for Evaluation of Organic Emissions, Process Test Phase III, HNF-4212, Rev. 0-A, (LMHC, 1999). All samples were stored in a secured Radioactive Materials Area (RMA) until the samples were radiologically released and received by SAS for analysis. The Waste Sampling and Characterization Facility (WSCF) performed the radiological analyses. The samples were received on April 5, 1999.

  13. Surfactant-Assisted Nanodrop Spectrophotometer Determination of Iron(III) in a Single Drop of Food, Biological, and Environmental Samples

    Science.gov (United States)

    Sharma, A.; Tapadia, K.; Sahin, R.; Shrivas, K.

    2016-01-01

    A surfactant-assisted nanodrop spectrophotometric (NDS) method has been developed for the determination of the iron(III) content in single drops (1 μ L) of food, biological, and or environmental sample using disodium 1-nitroso-2-naphthol-3,6-sulfonate (Nitroso-R salt) as a complexing agent and Tween-80 as non-ionic surfactant at pH 4.0. This method is based on the formation of a complex between the Fe(III) present in a sample and the Nitroso-R-salt in the presence of a surfactant to form a green-colored Fe(III)-Nitroso-R salt complex, which can be measured using a NDS method at a λ max = 710 nm. This system was found to obey Beer's law at concentrations in the range of 50-5000 μ g/L with slope, intercept and correlation coefficient values of 0.683, 0.102, and 0.986, respectively. The molar absorptivity of the complex in terms of the Fe(III) content was determined to be 4.86 × 10 5 L· mol -1 · cm -1 . The detection limit and %RSD values of the method were found to be 17 × 10-3 mg/L and ±1.3706%, respectively. This newly developed method was successfully applied to the determination of the Fe(III) content in single drops of food, biological, and environmental samples, and the results were compared with those obtained by atomic absorption spectrometry.

  14. Spectroscopy of 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) attached to rare gas samples: clusters vs. bulk matrices. I. Absorption spectroscopy.

    Science.gov (United States)

    Dvorak, Matthieu; Müller, Markus; Knoblauch, Tobias; Bünermann, Oliver; Rydlo, Alexandre; Minniberger, Stefan; Harbich, Wolfgang; Stienkemeier, Frank

    2012-10-28

    The interaction between 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) and rare gas or para-hydrogen samples is studied by means of laser-induced fluorescence excitation spectroscopy. The comparison between spectra of PTCDA embedded in a neon matrix and spectra attached to large neon clusters shows that these large organic molecules reside on the surface of the clusters when doped by the pick-up technique. PTCDA molecules can adopt different conformations when attached to argon, neon, and para-hydrogen clusters which implies that the surface of such clusters has a well-defined structure without liquid or fluxional properties. Moreover, a precise analysis of the doping process of these clusters reveals that the mobility of large molecules on the cluster surface is quenched, preventing agglomeration and complex formation.

  15. Spectroscopy of 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) attached to rare gas samples: Clusters vs. bulk matrices. I. Absorption spectroscopy

    Science.gov (United States)

    Dvorak, Matthieu; Müller, Markus; Knoblauch, Tobias; Bünermann, Oliver; Rydlo, Alexandre; Minniberger, Stefan; Harbich, Wolfgang; Stienkemeier, Frank

    2012-10-01

    The interaction between 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) and rare gas or para-hydrogen samples is studied by means of laser-induced fluorescence excitation spectroscopy. The comparison between spectra of PTCDA embedded in a neon matrix and spectra attached to large neon clusters shows that these large organic molecules reside on the surface of the clusters when doped by the pick-up technique. PTCDA molecules can adopt different conformations when attached to argon, neon, and para-hydrogen clusters which implies that the surface of such clusters has a well-defined structure without liquid or fluxional properties. Moreover, a precise analysis of the doping process of these clusters reveals that the mobility of large molecules on the cluster surface is quenched, preventing agglomeration and complex formation.

  16. Chromium speciation in particulate matter samples (Cr(VI)/Cr(III) stability in solutions of leaching agents)

    International Nuclear Information System (INIS)

    Complete text of publication follows. In recent years extensive research was conducted to estimate the bioavailability and toxicity of metals in environmental samples. Substantial health risk could be associated with high particulate matter concentrations in ambient air and with a consumption of contaminated food-stuffs, both accompanied by an occurrence of toxic elements. One of the main causes of exceedance of ambient air quality limit values is traffic, despite emissions reductions. Among other factors, the mobility of an element is usually related to its chemical properties and the toxicity mainly to its oxidation state. Thus, chromium in the hexavalent form, Cr(VI), has long been recognized as a carcinogen and mutagen at low sub-ppm levels. Therefore, in this work, the presence and stability of Cr(VI)/Cr(III) species have been determined in particular matter of urban dust samples (the modified BCR three step sequential extraction procedure). For testing of stability and presence of Cr species a coupled technique connecting on-line HPLC with element-sensitive detector ICP-OES has been used (chromium was detected on line 205,560 nm). The anion exchange column Hamilton PRP-X100 (250 x 4,6 mm, 5 μm, PEEK, (Hamilton, USA)) was used for separation of Cr species. Optimal conditions for the separation were following: mobile phase 50 mmol x l-1 CH3COOH and 10 mmol xl-1 NaClO4 (pH 7.0; flow rate 1.5 ml x min-1), injected 200 μl of the sample, addition of 30 μg x ml-1 CDTA to the sample for a transfer of Cr(III) to anion complex. This combined technique allowed to determine 10 μg of Cr(III) and 13 μg of Cr(VI) in the sample (absolute LOD). It was found out that all three extraction agents used for a fractionation of elements negatively influenced the stability of Cr(VI) species in the solution immediately after their contact with the sample. The quantitatively smallest influence was found for the acetic acid. Probably this is a reason why only species of Cr(III

  17. Attachment and Early Maltreatment.

    Science.gov (United States)

    Egeland, Byron; Sroufe, L. Alan

    1981-01-01

    Attachment outcomes of 31 maltreatment cases (involving extreme neglect or abuse), selected from a total poverty sample of 267 high-risk mothers and their children, were compared to those of a subsample of 33 cases with a history of excellent care. Attachment was assessed when infants were 12 and 18 months old. (Author/MP)

  18. X-ray fluorescence in Member States: Austria and Sri Lanka. A new attachment module for secondary target excitation with sample changer and vacuum chamber

    International Nuclear Information System (INIS)

    A new secondary target attachment vacuum chamber was developed, designed and constructed at the Atomic Institute of Vienna Technical University X ray Laboratory and installed at the Atomic Energy Authorities, Colombo, Sri Lanka. The prerequisites were that the new system had to fit physically next to the Wobistrax TXRF spectrometer and to use the same existing X ray tube and an existing uplooking LN2 cooled Si(Li) detector. This new spectrometer replaces a simple secondary target system previously installed. The new system offers a 10 position sample changer integrated in a vacuum chamber. The secondary targets are exchangeable, and Mo, Zr, Ti, Al, KBr and Teflon as Barkla polarizer are available. The system is designed for the emission-transmission method for quantification but can also be used for air filter samples where the thin film model for the quantification is applicable

  19. Luminosity-environment relation in the Lowz sample of the Sdss-Iii

    Science.gov (United States)

    Deng, Xin-Fa; Qi, Xiao-Ping; Wu, Ping; Jiang, Peng; Qian, Xiao-Xia; Song, Jun; Ding, Ying-Ping

    In this work, we examine the environmental dependence of the u-, g-, r-, i- and z-band luminosities in the LOWZ sample of the Sloan Digital Sky Survey Data Release 10 (SDSS DR10). To decrease the radial selection effect, we divide the LOWZ sample into subsamples with a redshift bin size of Δ z = 0.01 and analyze the environmental dependence of luminosities for these subsamples in each redshift bin. It is found that all five band luminosities of the LOWZ galaxy sample in the redshift region z=0.16--0.23 show substantial correlation with the local environment, especially in the redshift bins 0.19--0.20 and 0.20--0.21. The environmental dependence of all five band luminosities in the LOWZ galaxy sample becomes weak with increasing redshift, like the one in the apparent-magnitude limited Main galaxy sample.

  20. Evaluation of the WMS-III Rarely Missed Index in a naive clinical sample.

    Science.gov (United States)

    Axelrod, Bradley N; Barlow, Alycia; Paradee, Christine

    2010-01-01

    We examined the WMS-III Rarely Missed Index as a reliable predictor of fabrication of memory difficulties. A total of 31 outpatients referred for neuropsychological evaluation completed the WMS-III Logical Memory Delayed Recognition Test (LMDR) before having heard the stories and again after hearing the stories. Of the 30 items from the LMDR completed by participants who had not heard the stories, 5 were found to significantly differ from chance; only 1 of those items was found to do so in the original RMI studies. Conversely, of the six items in the original RMI study, only one was found to differ from chance in the present study. A Monte Carlo randomization of the original six RMI items found that 69% of random responders fell below cutoffs for incomplete effort, suggesting that those with memory impairment severe enough to result in random responding are likely to be classified as demonstrating less than optimal effort. An examination of response bias found no differences among negative, positive, or no-bias responders in terms of overall memory performance. However, RMI was indicative of incomplete effort more often with individuals presenting with a negative response bias. The present study provides evidence of the limitations of using the RMI to detect incomplete effort using the LMDR. The relative values of specificity versus sensitivity are particularly important in clinical evaluations, with the prevention of false accusations of malingering an important goal. The use of multiple indicators of effort is reinforced by this study, and the conservative interpretation of the RMI in particular is recommended.

  1. Product Attachment

    OpenAIRE

    Mugge, R.

    2007-01-01

    The topic of this doctoral research is the concept of product attachment for ordinary consumer durables. Product attachment is defined as the strength of the emotional bond a consumer experiences with a specific product. Specifically, the research investigated how this bond develops over time and the relationship between product attachment and product lifetime. In addition, we studied which determinants may affect the strength of the emotional bond with products and uncovered the role of the ...

  2. Self-esteem in adolescents with Angle Class I, II and III malocclusion in a Peruvian sample

    Directory of Open Access Journals (Sweden)

    Karla Florián-Vargas

    2016-04-01

    Full Text Available ABSTRACT Objective: To compare self-esteem scores in 12 to 16-year-old adolescents with different Angle malocclusion types in a Peruvian sample. Material and Methods: A cross-sectional study was conducted in a sample of 276 adolescents (159, 52 and 65 with Angle Class I, II and III malocclusions, respectively from Trujillo, Peru. Participants were asked to complete the Rosenberg Self-Esteem Scale (RSES and were also clinically examined, so as to have Angle malocclusion classification determined. Analysis of covariance (ANCOVA was used to compare RSES scores among adolescents with Class I, II and III malocclusions, with participants' demographic factors being controlled. Results: Mean RSES scores for adolescents with Class I, II and III malocclusions were 20.47 ± 3.96, 21.96 ± 3.27 and 21.26 ± 4.81, respectively. The ANCOVA test showed that adolescents with Class II malocclusion had a significantly higher RSES score than those with Class I malocclusion, but there were no differences between other malocclusion groups. Supplemental analysis suggested that only those with Class II, Division 2 malocclusion might have greater self-esteem when compared to adolescents with Class I malocclusion. Conclusion: This study shows that, in general, self-esteem did not vary according to adolescents' malocclusion in the sample studied. Surprisingly, only adolescents with Class II malocclusion, particularly Class II, Division 2, reported better self-esteem than those with Class I malocclusion. A more detailed analysis assessing the impact of anterior occlusal features should be conducted.

  3. TOP1 gene copy number and TOP1/CEN-20 ratio in stage III colorectal cancer samples

    DEFF Research Database (Denmark)

    Rømer, Maria Unni Koefoed; Nygård, Sune Boris; Christensen, Ib Jarle;

    fixed paraffin embedded (FFPE) primary tumor tissue has been suggested as a predictive biomarker of the effect of irinotecan in the treatment of metastatic CRC. Quantification of TOP1 protein levels in FFPE tissue may be difficult and calls for alternative methods.We have recently reported on TOP1 FISH...... analyses on 50 FFPE primary CRC tissues. When compared with results from normal colorectal mucosa, 80 % of the tumors showed increased TOP1 gene copy number and 2/3 had increased TOP1/CEN-20 ratio. MATERIALS AND METHODS FFPE samples from 154 stage III CRC patients not receiving adjuvant chemotherapy were...

  4. The K20 survey. III. Photometric and spectroscopic properties of the sample

    CERN Document Server

    Cimatti, A; Daddi, E; Pozzetti, L; Fontana, A; Saracco, P; Poli, F; Renzini, A; Zamorani, G; Broadhurst, T J; Cristiani, S; D'Odorico, S; Giallongo, E; Gilmozzi, R; Menci, N

    2002-01-01

    The K20 survey is an ESO VLT optical and near-infrared spectroscopic survey aimed at obtaining spectral information and redshifts of a complete sample of about 550 objects to K_s\\leq20.0 over two independent fields with a total area of 52 arcmin^2. In this paper we discuss the scientific motivation of such a survey, we describe the photometric and spectroscopic properties of the sample, and we release the $K_s$-band photometric catalog. Extensive simulations showed that the sample is photometrically highly complete to K_s=20. The observed galaxy counts and the R-K_s color distribution are consistent with literature results. We observed spectroscopically 94% of the sample, reaching a spectroscopic redshift identification completeness of 92% to K_s\\leq20.0 for the observed targets, and of 87% for the whole sample (i.e. counting also the unobserved targets). Deep spectroscopy was complemented with multi-band deep imaging in order to derive tested and reliable photometric redshifts for the galaxies lacking spectr...

  5. Product Attachment

    NARCIS (Netherlands)

    Mugge, R.

    2007-01-01

    The topic of this doctoral research is the concept of product attachment for ordinary consumer durables. Product attachment is defined as the strength of the emotional bond a consumer experiences with a specific product. Specifically, the research investigated how this bond develops over time and th

  6. Attachment, personality, and psychopathology among adult inpatients: self-reported romantic attachment style versus Adult Attachment Interview states of mind.

    Science.gov (United States)

    Riggs, Shelley A; Paulson, Adrienne; Tunnell, Ellen; Sahl, Gayla; Atkison, Heather; Ross, Colin A

    2007-01-01

    The present study examined self-reported romantic attachment style and Adult Attachment Interview (AAI) states of mind regarding early attachment relationships, personality dimensions, and psychopathology in a psychiatric sample of trauma survivors. Inpatients (N = 80) admitted to a hospital trauma treatment program were administered the Experiences in Close Relationships Scale, AAI, Millon Clinical Multiaxial Inventory-III, Dissociative Experiences Scale, and Dissociative Disorder Interview Schedule. Self-report and AAI attachment classifications were not related, and different results emerged for the two measures. Self-reported romantic attachment style was significantly associated with personality dimensions, with fearful adults showing the most maladaptive personality profiles. Findings suggested that self-report dimensions of self and other independently contribute to different forms of psychological dysfunction. AAI unresolved trauma was uniquely associated with dissociation and posttraumatic stress disorder, whereas unresolved trauma and unresolved loss jointly contributed to schizotypal and borderline personality disorder scores. The differences in findings between the two measures are discussed with a view toward the developmental and clinical implications. PMID:17241494

  7. A CATALOG OF METHANOL MASERS IN MASSIVE STAR-FORMING REGIONS. III. THE MOLECULAR OUTFLOW SAMPLE

    Energy Technology Data Exchange (ETDEWEB)

    Gómez-Ruiz, A. I. [Instituto Nacional de Astrofísica, Óptica y Electrónica, Luis E. Erro 1, Tonantzintla, Puebla, C.P. 72840, México (Mexico); Kurtz, S. E.; Loinard, L. [Instituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México, Apartado Postal 3-72, Morelia 58089, México (Mexico); Araya, E. D. [Physics Department, Western Illinois University, 1 University Circle, Macomb, IL 61455 (United States); Hofner, P. [New Mexico Institute of Mining and Technology, Socorro, NM 87801 (United States)

    2016-02-15

    We present an interferometric survey of the 44 GHz class I methanol maser transition toward a sample of 69 sources consisting of high-mass protostellar object (HMPO) candidates and ultracompact (UC) H ii regions. We found a 38% detection rate (16 of 42) in the HMPO candidates and a 54% detection rate (13 of 24) for the regions with ionized gas. This result indicates that class I methanol maser emission is more common toward the more evolved young stellar objects of our sample. Comparing with similar interferometric data sets, our observations show narrower linewidths, likely due to our higher spatial resolution. Based on a comparison between molecular outflow tracers and the maser positions, we find several cases where the masers appear to be located at the outflow interface with the surrounding core. Unlike previous surveys, we also find several cases where the masers appear to be located close to the base of the molecular outflow, although we cannot discard projection effects. This and other surveys of class I methanol masers not only suggest that these masers may trace shocks at different stages, but also that they may even trace shocks arising from a number of different phenomena occurring in star-forming regions: young/old outflows, cloud–cloud collisions, expanding H ii regions, among others.

  8. Design, statistical analysis and sample size calculation of a phase IIb/III study of linagliptin versus voglibose and placebo

    Directory of Open Access Journals (Sweden)

    Hayashi Naoyuki

    2009-09-01

    Full Text Available Abstract Background Many patients with diabetes mellitus (DM require a combination of antidiabetic drugs with complementary mechanisms of action to lower their hemoglobin A1c levels to achieve therapeutic targets and reduce the risk of cardiovascular complications. Linagliptin is a novel member of the dipeptidyl peptidase-4 (DPP-4 inhibitor class of antidiabetic drugs. DPP-4 inhibitors increase incretin (glucagon-like peptide-1 and gastric inhibitory polypeptide levels, inhibit glucagon release and, more importantly, increase insulin secretion and inhibit gastric emptying. Currently, phase III clinical studies with linagliptin are underway to evaluate its clinical efficacy and safety. Linagliptin is expected to be one of the most appropriate therapies for Japanese patients with DM, as deficient insulin secretion is a greater concern than insulin resistance in this population. The number of patients with DM in Japan is increasing and this trend is predicted to continue. Several antidiabetic drugs are currently marketed in Japan; however there is no information describing the effective dose of linagliptin for Japanese patients with DM. Methods This prospective, randomized, double-blind study will compare linagliptin with placebo over a 12-week period. The study has also been designed to evaluate the safety and efficacy of linagliptin by comparing it with another antidiabetic, voglibose, over a 26-week treatment period. Four treatment groups have been established for these comparisons. A phase IIb/III combined study design has been utilized for this purpose and the approach for calculating sample size is described. Discussion This is the first phase IIb/III study to examine the long-term safety and efficacy of linagliptin in diabetes patients in the Japanese population. Trial registration Clinicaltrials.gov (NCT00654381.

  9. [O III]$\\lambda 5007$ and X-ray Properties of a Complete Sample of Hard X-ray Selected AGNs in the Local Universe

    CERN Document Server

    Ueda, Y; Ichikawa, K; Ishino, Y; Kniazev, A Y; Vaisanen, P; Ricci, C; Berney, S; Gandhi, P; Koss, M; Mushotzky, R; Terashima, Y; Trakhtenbrot, B; Crenshaw, M

    2015-01-01

    We study the correlation between the [O III]$\\lambda 5007$ and X-ray luminosities of local Active Galactic Nuclei (AGNs), using a complete, hard X-ray ($>10$ keV) selected sample in the Swift/BAT 9-month catalog. From our optical spectroscopic observations at the South African Astronomical Observatory and the literature, a catalog of [O III]$\\lambda 5007$ line flux for all 103 AGNs at Galactic latitudes of $|b|>15^\\circ$ is complied. Significant correlations with intrinsic X-ray luminosity ($L_{\\rm X}$) are found both for observed ($L_{\\rm [O~III]}$) and extinction-corrected ($L_{\\rm [O~III]}^{\\rm cor}$) luminosities, separately for X-ray unabsorbed and absorbed AGNs. We obtain the regression form of $L_{\\rm [O~III]}$ $\\propto L_{\\rm 2-10\\; keV}^{1.18\\pm0.07}$ and $L_{\\rm [O~III]}^{\\rm cor}$ $\\propto L_{\\rm 2-10\\; keV}^{1.16\\pm0.09}$ from the whole sample. The absorbed AGNs with low ($<$0.5\\%) scattering fractions in soft X-rays show on average smaller $L_{\\rm [O~III]}/L_{\\rm X}$ and $L_{\\rm [O~III]}^{\\rm ...

  10. Dopamine D4 receptor exon III polymorphism, adverse life events and personality traits in a nonclinical German adult sample.

    Science.gov (United States)

    Reiner, Iris; Spangler, Gottfried

    2011-01-01

    Personality and temperament embrace a wide area of both psychological and behavioral processes which are also based on disposition. A functional polymorphism in exon III of the dopamine D4 receptor gene (DRD4) has been a highly suspect genetic marker for personality in spite of ambiguous results. The present study aimed to further elucidate the relationship between DRD4, negative life events and personality in a representative nonclinical sample. Hundred sixty-seven Germans completed the NEO Five-Factor Inventory, the Tridimensional Personality Questionnaire and the California Adult Q-Sort. A factor analysis revealed 3 factors: emotional stability, social orientation and impulsivity. DNA from buccal cells was genotyped for the DRD4 variable-number tandem-repeat exon III polymorphism with respect to presence versus absence of the DRD4 7-repeat allele. Adverse life events were assessed by means of the Adverse Life Events Scale. Men carrying the DRD4 7-repeat allele were more impulsive than those without. Male 7-repeat carriers were more emotionally instable than others, but only when they experienced a large amount of negative life events. No genotype-personality relationships were found for women. The results indicate gender-specific influences of the DRD4 gene on human behavior and invite researchers to further investigate gene-environment correlations on personality traits.

  11. Determination of Antimony (III in Real Samples by Anodic Stripping Voltammetry Using a Mercury Film Screen-Printed Electrode

    Directory of Open Access Journals (Sweden)

    Olga Domínguez-Renedo

    2009-01-01

    Full Text Available This paper describes a procedure for the determination of antimony (III by differential pulse anodic stripping voltammetry using a mercury film screen-printed electrode as the working electrode. The procedure has been optimized using experimental design methodology. Under these conditions, in terms of Residual Standard Deviation (RSD, the repeatability (3.81 % and the reproducibility (5.07 % of the constructed electrodes were both analyzed. The detection limit for Sb (III was calculated at a value of 1.27×10–8 M. The linear range obtained was between 0.99 × 10–8 – 8.26 × 10–8 M. An analysis of possible effects due to the presence of foreign ions in the solution was performed and the procedure was successfully applied to the determination of antimony levels in pharmaceutical preparations and sea water samples.

  12. Stability study of As(III), As(V), MMA and DMA by anion exchange chromatography and HG-AFS in wastewater samples

    Energy Technology Data Exchange (ETDEWEB)

    Segura, Marta; Munoz, Juan; Madrid, Yolanda; Camara, Carmen [Departamento de Quimica Analitica, Facultad de Ciencias Quimicas, Universidad Complutense, 28040 Madrid (Spain)

    2002-10-01

    The stability of arsenic species {l_brace}arsenate [As(V)], monomethylarsonate [MMA], dimethylarsinate [DMA] and arsenite [As(III)]{r_brace} in two types of urban wastewater samples (raw and treated) was evaluated. Water samples containing a mixture of the different arsenic species were stored in the absence of light at three different temperatures: +4 C, +20 C and +40 C. At regular time intervals, arsenic species were determined by high performance liquid chromatography (HPLC)-hydride generation (HG)-atomic fluorescence spectrometry (AFS). The experimental conditions for the separation of arsenic species by HPLC and their determination by AFS were directly optimised from wastewater samples. As(III), As(V), MMA and DMA were separated on an anion exchange column using phosphate buffer (pH 6.0) as the mobile phase. Under these conditions the four arsenic species were separated in less than 10 min. The detection limits were 0.6, 0.9, 0.9 and 1.8 {mu}g L{sup -1} for As(III), DMA, MMA and As(V), respectively. As(V), MMA and DMA were found stable in the two types of urban wastewater samples over the 4-month period at the three different temperatures tested, while the concentration of As(III) in raw wastewater sample decreased after 2 weeks of storage. A greater stability of As(III) was found in the treated urban wastewater sample. As(III) remained unaltered in this matrix at pH 7.27 over the period studied, while at lower pH (1.6) losses of As(III) were detected after 1 month of storage. The results show that the decrease in As(III) concentration with time was accompanied by an increase in As(V) concentration. (orig.)

  13. The XXL Survey. III. Luminosity-temperature relation of the bright cluster sample

    Science.gov (United States)

    Giles, P. A.; Maughan, B. J.; Pacaud, F.; Lieu, M.; Clerc, N.; Pierre, M.; Adami, C.; Chiappetti, L.; Démoclés, J.; Ettori, S.; Le Févre, J. P.; Ponman, T.; Sadibekova, T.; Smith, G. P.; Willis, J. P.; Ziparo, F.

    2016-06-01

    Context. The XXL Survey is the largest homogeneous survey carried out with XMM-Newton. Covering an area of 50 deg2, the survey contains several hundred galaxy clusters out to a redshift of ~2 above an X-ray flux limit of ~5 × 10-15 erg cm-2 s-1. This paper belongs to the first series of XXL papers focusing on the bright cluster sample. Aims: We investigate the luminosity-temperature (LT) relation for the brightest clusters detected in the XXL Survey, taking fully into account the selection biases. We investigate the form of the LT relation, placing constraints on its evolution. Methods: We have classified the 100 brightest clusters in the XXL Survey based on their measured X-ray flux. These 100 clusters have been analysed to determine their luminosity and temperature to evaluate the LT relation. We used three methods to fit the form of the LT relation, with two of these methods providing a prescription to fully take into account the selection effects of the survey. We measure the evolution of the LT relation internally using the broad redshift range of the sample. Results: Taking fully into account selection effects, we find a slope of the bolometric LT relation of BLT = 3.08 ± 0.15, steeper than the self-similar expectation (BLT = 2). Our best-fit result for the evolution factor is E(z)1.64 ± 0.77, fully consistent with "strong self-similar" evolution where clusters scale self-similarly with both mass and redshift. However, this result is marginally stronger than "weak self-similar" evolution, where clusters scale with redshift alone. We investigate the sensitivity of our results to the assumptions made in our fitting model, finding that using an external LT relation as a low-z baseline can have a profound effect on the measured evolution. However, more clusters are needed in order to break the degeneracy between the choice of likelihood model and mass-temperature relation on the derived evolution. Based on observations obtained with XMM-Newton, an ESA science

  14. A Topological Analysis of Large-Scale Structure, Studied Using the CMASS Sample of SDSS-III

    Science.gov (United States)

    Parihar, Prachi; Vogeley, Michael S.; Gott, J. Richard, III; Choi, Yun-Young; Kim, Juhan; Kim, Sungsoo S.; Speare, Robert; Brownstein, Joel R.; Brinkmann, J.

    2014-12-01

    We study the three-dimensional genus topology of large-scale structure using the northern region of the CMASS Data Release 10 (DR10) sample of the SDSS-III Baryon Oscillation Spectroscopic Survey. We select galaxies with redshift 0.452 z 1011.56 M ⊙. We study the topology at two smoothing lengths: R G = 21 h -1 Mpc and R G = 34 h -1 Mpc. The genus topology studied at the R G = 21 h -1 Mpc scale results in the highest genus amplitude observed to date. The CMASS sample yields a genus curve that is characteristic of one produced by Gaussian random phase initial conditions. The data thus support the standard model of inflation where random quantum fluctuations in the early universe produced Gaussian random phase initial conditions. Modest deviations in the observed genus from random phase are as expected from shot noise effects and the nonlinear evolution of structure. We suggest the use of a fitting formula motivated by perturbation theory to characterize the shift and asymmetries in the observed genus curve with a single parameter. We construct 54 mock SDSS CMASS surveys along the past light cone from the Horizon Run 3 (HR3) N-body simulations, where gravitationally bound dark matter subhalos are identified as the sites of galaxy formation. We study the genus topology of the HR3 mock surveys with the same geometry and sampling density as the observational sample and find the observed genus topology to be consistent with ΛCDM as simulated by the HR3 mock samples. We conclude that the topology of the large-scale structure in the SDSS CMASS sample is consistent with cosmological models having primordial Gaussian density fluctuations growing in accordance with general relativity to form galaxies in massive dark matter halos.

  15. A topological analysis of large-scale structure, studied using the CMASS sample of SDSS-III

    International Nuclear Information System (INIS)

    We study the three-dimensional genus topology of large-scale structure using the northern region of the CMASS Data Release 10 (DR10) sample of the SDSS-III Baryon Oscillation Spectroscopic Survey. We select galaxies with redshift 0.452 < z < 0.625 and with a stellar mass M stellar > 1011.56 M ☉. We study the topology at two smoothing lengths: R G = 21 h –1 Mpc and R G = 34 h –1 Mpc. The genus topology studied at the R G = 21 h –1 Mpc scale results in the highest genus amplitude observed to date. The CMASS sample yields a genus curve that is characteristic of one produced by Gaussian random phase initial conditions. The data thus support the standard model of inflation where random quantum fluctuations in the early universe produced Gaussian random phase initial conditions. Modest deviations in the observed genus from random phase are as expected from shot noise effects and the nonlinear evolution of structure. We suggest the use of a fitting formula motivated by perturbation theory to characterize the shift and asymmetries in the observed genus curve with a single parameter. We construct 54 mock SDSS CMASS surveys along the past light cone from the Horizon Run 3 (HR3) N-body simulations, where gravitationally bound dark matter subhalos are identified as the sites of galaxy formation. We study the genus topology of the HR3 mock surveys with the same geometry and sampling density as the observational sample and find the observed genus topology to be consistent with ΛCDM as simulated by the HR3 mock samples. We conclude that the topology of the large-scale structure in the SDSS CMASS sample is consistent with cosmological models having primordial Gaussian density fluctuations growing in accordance with general relativity to form galaxies in massive dark matter halos.

  16. A topological analysis of large-scale structure, studied using the CMASS sample of SDSS-III

    Energy Technology Data Exchange (ETDEWEB)

    Parihar, Prachi; Gott, J. Richard III [Department of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, NJ 08544-1001 (United States); Vogeley, Michael S. [Department of Physics, Drexel University, Philadelphia, PA 19104 (United States); Choi, Yun-Young [Department of Astronomy and Space Science, Kyung Hee University, Gyeonggi 446-701 (Korea, Republic of); Kim, Juhan [Center for Advanced Computation, Korea Institute for Advanced Study, Heogiro 85, Seoul 130-722 (Korea, Republic of); Kim, Sungsoo S. [School of Space Research, Kyung Hee University, Gyeonggi 446-701 (Korea, Republic of); Speare, Robert [New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi (United Arab Emirates); Brownstein, Joel R. [Department of Physics and Astronomy, University of Utah, 115 S 1400 E, Salt Lake City, UT 84112 (United States); Brinkmann, J., E-mail: pparihar@caltech.edu, E-mail: yy.choi@khu.ac.kr [Apache Point Observatory, Sunspot, NM 88349 (United States)

    2014-12-01

    We study the three-dimensional genus topology of large-scale structure using the northern region of the CMASS Data Release 10 (DR10) sample of the SDSS-III Baryon Oscillation Spectroscopic Survey. We select galaxies with redshift 0.452 < z < 0.625 and with a stellar mass M {sub stellar} > 10{sup 11.56} M {sub ☉}. We study the topology at two smoothing lengths: R {sub G} = 21 h {sup –1} Mpc and R {sub G} = 34 h {sup –1} Mpc. The genus topology studied at the R {sub G} = 21 h {sup –1} Mpc scale results in the highest genus amplitude observed to date. The CMASS sample yields a genus curve that is characteristic of one produced by Gaussian random phase initial conditions. The data thus support the standard model of inflation where random quantum fluctuations in the early universe produced Gaussian random phase initial conditions. Modest deviations in the observed genus from random phase are as expected from shot noise effects and the nonlinear evolution of structure. We suggest the use of a fitting formula motivated by perturbation theory to characterize the shift and asymmetries in the observed genus curve with a single parameter. We construct 54 mock SDSS CMASS surveys along the past light cone from the Horizon Run 3 (HR3) N-body simulations, where gravitationally bound dark matter subhalos are identified as the sites of galaxy formation. We study the genus topology of the HR3 mock surveys with the same geometry and sampling density as the observational sample and find the observed genus topology to be consistent with ΛCDM as simulated by the HR3 mock samples. We conclude that the topology of the large-scale structure in the SDSS CMASS sample is consistent with cosmological models having primordial Gaussian density fluctuations growing in accordance with general relativity to form galaxies in massive dark matter halos.

  17. A low-luminosity type-1 QSO sample; III. Optical spectroscopic properties and activity classification

    CERN Document Server

    Tremou, E; Zuther, J; Eckart, A; Valencia-Schneider, M; Vitale, M; Shan, C

    2015-01-01

    We report on the optical spectroscopic analysis of a sample of 99 low-luminosity quasi-stellar objects (LLQSOs) at $z\\leq 0.06$ base the Hamburg/ESO QSO survey (HES). The LLQSOs presented here offer the possibility of studying the faint end of the QSO population at smaller cosmological distances and, therefore, in greater detail. A small number of our LLQSO present no broad component. Two sources show double broad components, whereas six comply with the classic NLS1 requirements. As expected in NLR of broad line AGNs, the [S{\\sc{ii}}]$-$based electron density values range between 100 and 1000 N$_{e}$/cm$^{3}$. Using the optical characteristics of Populations A and B, we find that 50\\% of our sources with H$\\beta$ broad emission are consistent with the radio-quiet sources definition. The remaining sources could be interpreted as low-luminosity radio-loud quasar. The BPT-based classification renders an AGN/Seyfert activity between 50 to 60\\%. For the remaining sources, the possible star burst contribution might...

  18. The Lyman Alpha Reference Sample: III. Properties of the Neutral ISM from GBT and VLA Observations

    CERN Document Server

    Pardy, Stephen A; Östlin, Göran; Hayes, Matthew; Rivera-Thorsen, Thøger; Sandberg, Andreas; Adamo, Angela; Freeland, Emily; Heren, E Christian; Guaita, Lucia; Kunth, Daniel; Laursen, Peter; Mas-Hesse, J M; Melinder, Jens; Orlitová, Ivana; Otí-Floranes, Héctor; Puschnig, Johannes; Schaerer, Daniel; Verhamme, Anne

    2014-01-01

    We present new H I imaging and spectroscopy of the 14 UV-selected star-forming galaxies in the Lyman Alpha Reference Sample (LARS), aimed for a detailed study of the processes governing the production, propagation, and escape of Ly$\\alpha$ photons. New H I spectroscopy, obtained with the 100m Green Bank Telescope (GBT), robustly detects the H I spectral line in 11 of the 14 observed LARS galaxies (although the profiles of two of the galaxies are likely confused by other sources within the GBT beam); the three highest redshift galaxies are not detected at our current sensitivity limits. The GBT profiles are used to derive fundamental H I line properties of the LARS galaxies. We also present new pilot H I spectral line imaging of 5 of the LARS galaxies obtained with the Karl G. Jansky Very Large Array (VLA). This imaging localizes the H I gas and provides a measurement of the total H I mass in each galaxy. In one system, LARS 03 (UGC 8335 or Arp 238), VLA observations reveal an enormous tidal structure that ext...

  19. Cloud point extraction and spectrophotometric determination of arsenic (III using Amaranth as an extraction agent in water samples

    Directory of Open Access Journals (Sweden)

    Shahram Nekouei

    2014-06-01

    Full Text Available Cloud-point extraction (CPE method was applied to extraction of trace quantities ofAs(III from various water samples. In the proposed method, spectrophotometric determination has been developed. For this mixed-micelle mediated extraction, amaranth, cetyltrimethylammunium bromide (CTAB, Triton X-114, and NaCl were applied as chelating, sensitizing agent, extraction and co-extraction agents, respectively.A linear calibration curve in the range of 10-1000 µg L-1 of amaranth was acquired. Under the optimized conditions, the limit of detection (LOD was 2.8 µg L-11and the relative standard deviation (RSD for 200 and 600 µg L-1 was 2.23 and 1.73, respectively (n = 10. The LOD was 2.8 µg L-1.

  20. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: the low redshift sample

    CERN Document Server

    Parejko, John K; Padmanabhan, Nikhil; Wake, David A; Berlind, Andreas A; Bizyaev, Dmitry; Blanton, Michael; Bolton, Adam S; Bosch, Frank van den; Brinkmann, Jon; Brownstein, Joel R; da Costa, Luiz Alberto Nicolaci; Eisenstein, Daniel J; Guo, Hong; Kazin, Eyal; Maia, Marcio; Malanushenko, Elena; Maraston, Claudia; McBride, Cameron K; Nichol, Robert C; Oravetz, Daniel J; Pan, Kaike; Percival, Will J; Prada, Francisco; Ross, Ashley J; Ross, Nicholas P; Schlegel, David J; Schneider, Don; Simmons, Audrey E; Skibba, Ramin; Tinker, Jeremy; Tojeiro, Rita; Weaver, Benjamin A; Wetzel, Andrew; White, Martin; Weinberg, David H; Thomas, Daniel; Zehavi, Idit; Zheng, Zheng

    2012-01-01

    We report on the small scale (0.5sample selection, basic properties of the galaxies, and caveats for working with the data. We calculate the real- and redshift-space two-point correlation functions of these galaxies, fit these measurements using Halo Occupation Distribution (HOD) modeling within dark matter cosmological simulations, and estimate the errors using mock catalogs. These galaxies lie in massive halos, with a mean halo mass of 5.2x10^13 h^-1 M_sun, a large scale bias of ~2.0, and a satellite fraction of 12+/-2%. Thus, these galaxies occupy halos with average masses in between those of the higher redshift BOSS CMASS sample and the original SDSS I/II LRG sample.

  1. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: baryon acoustic oscillations in the Data Release 9 spectroscopic galaxy sample

    OpenAIRE

    Anderson, Lauren; de Putter, Roland; Mena Requejo, Olga

    2012-01-01

    We present measurements of galaxy clustering from the Baryon Oscillation Spectroscopic Survey (BOSS), which is part of the Sloan Digital Sky Survey III (SDSS-III). These use the Data Release 9 (DR9) CMASS sample, which contains 264 283 massive galaxies covering 3275 square degrees with an effective redshift z = 0.57 and redshift range 0.43 < z < 0.7. Assuming a concordance Lambda CDM cosmological model, this sample covers an effective volume of 2.2 Gpc(3), and represents the largest sample of...

  2. A novel lutetium(III) PVC membrane sensor based on a new symmetric S-N Schiff's base for Lu(III) analysis in real sample

    International Nuclear Information System (INIS)

    A novel Lu(III) PVC membrane sensor has been constructed based on a new synthesized symmetric S-N Schiff's base, namely N-[(Z)-1-(2-thienyl)methylidene]-N-[4-(4-{[(Z)-1-(2-thienyl) methylidene]amino}benzyl)phenyl] amine (TBPA). The electrode showed a Nernstian slope of 19.8 ± 0.5 mV per decade across a wide concentration range of 1.0 x 10-6 to 1.0 x 10-2 mol L-1 with a detection limit of 7.2 x 10-7 mol L-1. The proposed sensor showed high selectivity toward Lu(III) ion in comparison with common alkaline, alkaline earth, transition, and heavy metals specially lanthanide ions, and could be used over a pH range of 2.7-10.6. It can be used for at least 2 months without any considerable divergency in potentials and it has a relatively fast response time of < 10 s. The sensor was effectively used as an indicator electrode in the potentiometric titration of Lu(III) ions with EDTA. The constructed sensor accuracy was investigated by the monitoring of Lu(III) ion in mixtures of two and three different ions.

  3. Determination of organophosphorus pesticides in water samples by using a new sensitive luminescent probe of Eu (III) complex

    International Nuclear Information System (INIS)

    This work describes the application of fluorescence for investigating the interactions of Eu(III)-TAN-1,10 phenanthroline (where TAN=4,4,4-Trifluoro-1-(2-naphthyl)-1,3-butanedione) with pesticides Chlorpyrifos, Malathion, Endosulfan, Heptachlor. The complex was synthesized and characterized by elemental analysis, FTIR, x-ray spectroscopy, solid fluorescence and thermal analysis. The results indicated that the composition of this complex is [Eu(TAN)2(Phen)(H2O)2]Cl. The luminescence properties of the complex in different solvents and at different pH values have been investigated. The results show that the complex exhibits more efficient luminescence at pH=7.5. The interactions of Eu-complex with different pesticides (Chlorpyrifos, Malathion, Endosulfan, and Heptachlor) in aqueous medium have been investigated by fluorescence measurements. The luminescence intensity of the probe is quenched by Malathion and enhanced by (Endosulfan, Heptachlor, and Chlorpyrifos). Direct methods for the determination of the pesticides under investigation have been developed using the luminescence variations of the probe in solution. The detection limits are 0.47, 1.02, 0.66, 0.64 µmol/L for Chlorpyrifos, Endosulfan, Heptachlor, and Malathion, respectively. The binding constants and thermodynamic parameters of the pesticides with probe were evaluated. The emission quantum yield (QY=0.71) of Eu(III)-complex was determined using tris (2,2'-bipyridyl) dichlororuthenium(II) hexahydrate. A thermodynamic analysis showed that the reaction is spontaneous with negative ΔG. Effect of some relevant interferents on the detection of pesticides has been investigated. The new method was applied to the determination of the pesticides in different types of water samples (tap, river, and waste water). - Highlights: • A new luminescent probe of Eu (III) complex has been developed for sensing some organophosphorus pesticides. • Four guest pesticides Chlorpyrifos, Malathion, Endosulfan, and

  4. Determination of organophosphorus pesticides in water samples by using a new sensitive luminescent probe of Eu (III) complex

    Energy Technology Data Exchange (ETDEWEB)

    Azab, Hassan A., E-mail: azab2@yahoo.com; Anwar, Z.M.; Rizk, M.A.; Khairy, Gasser M.; El-Asfoury, M.H.

    2015-01-15

    This work describes the application of fluorescence for investigating the interactions of Eu(III)-TAN-1,10 phenanthroline (where TAN=4,4,4-Trifluoro-1-(2-naphthyl)-1,3-butanedione) with pesticides Chlorpyrifos, Malathion, Endosulfan, Heptachlor. The complex was synthesized and characterized by elemental analysis, FTIR, x-ray spectroscopy, solid fluorescence and thermal analysis. The results indicated that the composition of this complex is [Eu(TAN){sub 2}(Phen)(H{sub 2}O){sub 2}]Cl. The luminescence properties of the complex in different solvents and at different pH values have been investigated. The results show that the complex exhibits more efficient luminescence at pH=7.5. The interactions of Eu-complex with different pesticides (Chlorpyrifos, Malathion, Endosulfan, and Heptachlor) in aqueous medium have been investigated by fluorescence measurements. The luminescence intensity of the probe is quenched by Malathion and enhanced by (Endosulfan, Heptachlor, and Chlorpyrifos). Direct methods for the determination of the pesticides under investigation have been developed using the luminescence variations of the probe in solution. The detection limits are 0.47, 1.02, 0.66, 0.64 µmol/L for Chlorpyrifos, Endosulfan, Heptachlor, and Malathion, respectively. The binding constants and thermodynamic parameters of the pesticides with probe were evaluated. The emission quantum yield (QY=0.71) of Eu(III)-complex was determined using tris (2,2'-bipyridyl) dichlororuthenium(II) hexahydrate. A thermodynamic analysis showed that the reaction is spontaneous with negative ΔG. Effect of some relevant interferents on the detection of pesticides has been investigated. The new method was applied to the determination of the pesticides in different types of water samples (tap, river, and waste water). - Highlights: • A new luminescent probe of Eu (III) complex has been developed for sensing some organophosphorus pesticides. • Four guest pesticides Chlorpyrifos, Malathion

  5. Activation of the attachment system and mentalization in depressive and healthy individuals: An experimental control study

    Directory of Open Access Journals (Sweden)

    Fizke Ella

    2013-01-01

    Full Text Available From a developmental and clinical point of view attachment theory and mentalization are closely connected and have become increasingly important to understand the origins of psychopathological development. However, very little is known about how exactly different inner working models of attachment are related to diverse mentalizing abilities and this is particularly true for adult populations - healthy as well as clinical populations. In the present study we investigated this relation with a sample of inpatients diagnosed with depression and a sample of healthy individuals. In an experimental setting the attachment system was activated using the Adult Attachment Projective Picture System (AAP. Mentalization was assessed during activation and in comparison to a control condition using a modified version of the Reading the Mind in the Eyes Test (RMET. We expected that an activation of the attachment system i diminishes the capacity to take another’s perspective in individuals with unresolved state of mind, ii has no impact in individuals with secure attachment representation and iii is dependent of clinical status in individuals with insecure (but organized working models of attachment. Overall, these hypotheses were confirmed. However, the impact of clinical status on mentalization in insecure attachment has to be further explored. We summarize that attachment state of mind has a mediating influence on mentalization basically in such situations where the attachment system is activated.

  6. Monitoring of praseodymium(III) ions in aqueous solutions, soil and sediment samples by a PVC membrane sensor based on a furan-triazole derivative

    Energy Technology Data Exchange (ETDEWEB)

    Pourjavid, Mohammad Reza [Islamic Azad University, Tehran (Iran, Islamic Republic of). Dept. of Medicinal Chemistry. Nuclear Science and Technology Research Institute; Rezaee, Mohammad; Hosseini, Majid Haji [Nuclear Science and Technology Research Institute, Tehran (Iran, Islamic Republic of); Razavi, Taherehsadat, E-mail: pourjavid@gmail.com [Research Institute of Petroleum Industry, Tehran (Iran, Islamic Republic of). Instrumental Analysis Dept.

    2012-07-01

    A furan-triazole derivative has been explored as an ionophore for preparation of a highly selective Pr(III) membrane sensor. The proposed sensor exhibits a Nernstian response for Pr(III) activity over a wide concentration range with a detection limit of 5.2 x 10{sup -8}M. Its response is independent of pH of the solution in the range 3.0-8.8 and offers the advantages of fast response time. To investigate the analytical applicability of the sensor, it was applied successfully as an indicator electrode in potentiometric titration of Pr(III) solution and also in the direct and indirect determination of trace Pr(III) ions in some samples. (author)

  7. The association between attachment style and uni- and bi-directional pursuer-distancer patterns in couples: A clinical sample of couples in counseling

    OpenAIRE

    Davies, Lorin Christopher

    2004-01-01

    This study examined the relationship between adult attachment style and pursuer-distancer patterns in couples. Both uni- and bi-directional pursuer-distancer patterns were studied. Participants were 67 individuals (including 32 couples) in therapy. Each partner, independent of the other, completed an anonymous questionnaire containing the Multi-item Measure of Adult Romantic Attachment (Brennan, Clark, & Shaver, 1998) and a four-item measure of pursuer-distancer pattern designed for this s...

  8. Simultaneous preconcentration of cadmium and chromium(III) in water samples by cloud point extraction and their determination by flame atomic absorption spectrometry.

    Science.gov (United States)

    Meng, Lifen; Ning, Jinyan; Yang, Yaling

    2014-01-01

    A sensitive and simple method for flame atomic absorption spectrometry determination of traces of cadmium and chromium(III) species in water samples after preconcentration by cloud point extraction has been developed. A novel complex agent of alizarin complexone with cadmium (Cd) and chromium (Cr(III)) was quantitatively extracted in surface primary alcohol ethoxylate-rich phase at 33 °C. The effects of experimental conditions including pH of sample solution, concentration of chelating agent and salt, equilibration temperature and time, and foreign ions were evaluated in order to enhance sensitivity of the method. Under optimal conditions, the low limit detections were 6.7 and 3.2 μg/L, and the enrichment factors were 24 and 20 for Cd and Cr(III), respectively. The relative standard deviations were 3.8 and 2.5% for Cd and Cr(II), respectively (n = 11). The high recoveries of the spiked Cd and Cr(III) ions were obtained in the range of 90-116%. The proposed method has been successfully applied for the determination of Cd and Cr(III) in water samples.

  9. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: weighing the neutrino mass using the galaxy power spectrum of the CMASS sample

    OpenAIRE

    Zhao, G. -B.; Saito, S.; Percival, W J; Ross, A. J.; Montesano, F.; M. Viel(INAF-Osservatorio Astronomico di Trieste, Italy); Schneider, D. P.; Manera, M; Miralda-Escude, J.; Palanque-Delabrouille, N.; Ross, N. P.; Samushia, L.; Sanchez, A. G.; Swanson, M. E. C.; D. Thomas

    2013-01-01

    We measure the sum of the neutrino particle masses using the three-dimensional galaxy power spectrum of the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 9 (DR9) CMASS galaxy sample. Combined with the cosmic microwave background (CMB), supernova (SN) and additional baryonic acoustic oscillation (BAO) data, we find upper 95 percent confidence limits of the neutrino mass $\\Sigma m_{\

  10. 7 CFR 42.111 - Sampling plans for reduced condition of container inspection, Tables III and III-A; and limit...

    Science.gov (United States)

    2010-01-01

    ... Inspection Code Lot size ranges—Number of containers in lot Type of plan Sample size Acceptable quality... 7 Agriculture 2 2010-01-01 2010-01-01 false Sampling plans for reduced condition of container... Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE...

  11. Determination of As(III) and total inorganic As in water samples using an on-line solid phase extraction and flow injection hydride generation atomic absorption spectrometry

    Energy Technology Data Exchange (ETDEWEB)

    Sigrist, Mirna, E-mail: msigrist@fiq.unl.edu.ar [Laboratorio Central, Facultad de Ingenieria Quimica, Universidad Nacional del Litoral, Santiago del Estero 2654-Piso 6, (3000) Santa Fe (Argentina); Albertengo, Antonela; Beldomenico, Horacio [Laboratorio Central, Facultad de Ingenieria Quimica, Universidad Nacional del Litoral, Santiago del Estero 2654-Piso 6, (3000) Santa Fe (Argentina); Tudino, Mabel [Laboratorio de Analisis de Trazas, Departamento de Quimica Inorganica, Analitica y Quimica Fisica/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Pabellon II, Ciudad Universitaria (1428), Buenos Aires (Argentina)

    2011-04-15

    A simple and robust on-line sequential injection system based on solid phase extraction (SPE) coupled to a flow injection hydride generation atomic absorption spectrometer (FI-HGAAS) with a heated quartz tube atomizer (QTA) was developed and optimized for the determination of As(III) in groundwater without any kind of sample pretreatment. The method was based on the selective retention of inorganic As(V) that was carried out by passing the filtered original sample through a cartridge containing a chloride-form strong anion exchanger. Thus the most toxic form, inorganic As(III), was determined fast and directly by AsH{sub 3} generation using 3.5 mol L{sup -1} HCl as carrier solution and 0.35% (m/v) NaBH{sub 4} in 0.025% NaOH as the reductant. Since the uptake of As(V) should be interfered by several anions of natural occurrence in waters, the effect of Cl{sup -}, SO{sub 4}{sup 2-}, NO{sub 3}{sup -}, HPO{sub 4}{sup 2-}, HCO{sub 3}{sup -} on retention was evaluated and discussed. The total soluble inorganic arsenic concentration was determined on aliquots of filtered samples acidified with concentrated HCl and pre-reduced with 5% KI-5% C{sub 6}H{sub 8}O{sub 6} solution. The concentration of As(V) was calculated by difference between the total soluble inorganic arsenic and As(III) concentrations. Detection limits (LODs) of 0.5 {mu}g L{sup -1} and 0.6 {mu}g L{sup -1} for As(III) and inorganic total As, respectively, were obtained for a 500 {mu}L sample volume. The obtained limits of detection allowed testing the water quality according to the national and international regulations. The analytical recovery for water samples spiked with As(III) ranged between 98% and 106%. The sampling throughput for As(III) determination was 60 samples h{sup -1}. The device for groundwater sampling was especially designed for the authors. Metallic components were avoided and the contact between the sample and the atmospheric oxygen was carried to a minimum. On-field arsenic species

  12. Borderline disorder and attachment pathology.

    Science.gov (United States)

    West, M; Keller, A; Links, P; Patrick, J

    1993-02-01

    In this paper, the authors investigate the theoretical and empirical association between dysfunctions of the attachment system and borderline personality disorder. Attachment theory focuses on the maintenance of a sense of safety and security through a close personal relationship with a particular person. Based on a biological behavioural system, functional attachment relationships in adulthood rely on experiences and expectations of security within the relationship. These issues are also important to the definition and dynamics of borderline personality disorder. The dimensions and patterns of reciprocal attachment were compared with other scales measuring components of psychopathology and interpersonal relationships. In a sample of 85 female outpatients, only four of the attachment scales--feared loss, secure base, compulsive care-seeking and angry withdrawal--identified patients with high scores on a measure of borderline disorder. Of these four scales, feared loss had the predominant effect. These empirical results support the hypothesized relationship between dysfunctions of the attachment system and borderline disorder.

  13. Development of magnetic graphene oxide adsorbent for the removal and preconcentration of As(III) and As(V) species from environmental water samples.

    Science.gov (United States)

    Rashidi Nodeh, Hamid; Wan Ibrahim, Wan Aini; Ali, Imran; Sanagi, Mohd Marsin

    2016-05-01

    New-generation adsorbent, Fe3O4@SiO2/GO, was developed by modification of graphene oxide (GO) with silica-coated (SiO2) magnetic nanoparticles (Fe3O4). The synthesized adsorbent was characterized using Fourier transform infrared spectroscopy, X-ray diffractometry, energy-dispersive X-ray spectroscopy, and field emission scanning electron microscopy. The developed adsorbent was used for the removal and simultaneous preconcentration of As(III) and As(V) from environmental waters prior to ICP-MS analysis. Fe3O4@SiO2/GO provided high adsorption capacities, i.e., 7.51 and 11.46 mg g(-1) for As(III) and As(V), respectively, at pH 4.0. Adsorption isotherm, kinetic, and thermodynamic were investigated for As(III) and As(V) adsorption. Preconcentration of As(III) and As(V) were studied using magnetic solid-phase extraction (MSPE) method at pH 9.0 as the adsorbent showed selective adsorption for As(III) only in pH range 7-10. MSPE using Fe3O4@SiO2/GO was developed with good linearities (0.05-2.0 ng mL(-1)) and high coefficient of determination (R (2) = 0.9992 and 0.9985) for As(III) and As(V), respectively. The limits of detection (LODs) (3× SD/m, n = 3) obtained were 7.9 pg mL(-1) for As(III) and 28.0 pg mL(-1) for As(V). The LOD obtained is 357-1265× lower than the WHO maximum permissible limit of 10.0 ng mL(-1). The developed MSPE method showed good relative recoveries (72.55-109.71 %) and good RSDs (0.1-4.3 %, n = 3) for spring water, lake, river, and tap water samples. The new-generation adsorbent can be used for the removal and simultaneous preconcentration of As(III) and As(V) from water samples successfully. The adsorbent removal for As(III) is better than As(V).

  14. Simultaneous Determination of Fe(II) and Fe(III) in Pharmaceutical Samples by Post-Column Derivatization/HPLC

    OpenAIRE

    ŞENYUVA, Hamide Z.; SARICA, Deniz Yurtsever; ÖZDEN, Tuncel

    2002-01-01

    A post-column derivatization HPLC method with visible absorbance detection at 521 nm was modified for the simultaneous determination of Fe(II) and Fe(III) in mixtures. The method was applied to pharmaceuticals marketed in Turkey. Iron species were separated on a post-column derivatization HPLC, IonPac CS5A (4x250 mm) analytical column using a pyridine-2,6-dicarboxylic acid based eluent. The determinations of Fe(II) and Fe(III) were also realized by the most common method of FAAS, to...

  15. Correlates of appearance and weight satisfaction in a U.S. National Sample: Personality, attachment style, television viewing, self-esteem, and life satisfaction.

    Science.gov (United States)

    Frederick, David A; Sandhu, Gaganjyot; Morse, Patrick J; Swami, Viren

    2016-06-01

    We examined the prevalence and correlates of satisfaction with appearance and weight. Participants (N=12,176) completed an online survey posted on the NBCNews.com and Today.com websites. Few men and women were very to extremely dissatisfied with their physical appearances (6%; 9%), but feeling very to extremely dissatisfied with weight was more common (15%; 20%). Only about one-fourth of men and women felt very to extremely satisfied with their appearances (28%; 26%) and weights (24%; 20%). Men and women with higher body masses reported higher appearance and weight dissatisfaction. Dissatisfied people had higher Neuroticism, more preoccupied and fearful attachment styles, and spent more hours watching television. In contrast, satisfied people had higher Openness, Conscientious, and Extraversion, were more secure in attachment style, and had higher self-esteem and life satisfaction. These findings highlight the high prevalence of body dissatisfaction and the factors linked to dissatisfaction among U.S. adults. PMID:27172812

  16. Titanium (III) cation selective electrode based on synthesized tris(2pyridyl) methylamine ionophore and its application in water samples

    Science.gov (United States)

    Rezayi, Majid; Karazhian, Reza; Abdollahi, Yadollah; Narimani, Leila; Sany, Seyedeh Belin Tavakoly; Ahmadzadeh, Saeid; Alias, Yatimah

    2014-04-01

    The introduction of low detection limit ion selective electrodes (ISEs) may well pave the way for the determination of trace targets of cationic compounds. This research focuses on the detection of titanium (III) cation using a new PVC-membrane sensor based on synthesized tris(2pyridyl) methylamine (tpm) ionophore. The application and validation of the proposed sensor was done using potentiometric titration, inductively coupled plasma atomic emission spectrometry (ICP-AES), and atomic absorption spectrometry (AAS). The membrane sensor exhibited a Nernstian response to the titanium (III) cation over a concentration range of 1.0 × 10-6-1.0 × 10-2 M and pH range from 1-2.5. The Nernstian slope, the lower of detection (LOD), and the response time (t95%) of the proposed sensor were 29.17 +/- 0.24 mV/dec, 7.9 × 10-7 M, and 20 s, respectively. The direct determination of 4-39 μg/ml of titanium (III) standard solution showed an average recovery of 94.60 and a mean relative standard deviation of 1.8 at 100.0 μg/ml. Finally, the utilization of the electrodes as end-point indicators for potentiometric titration with EDTA solutions for titanium (III) sensor was successfully carried out.

  17. Determination of neodymium(III) ions in soil and sediment samples by a novel neodymium(III) sensor based on benzyl bisthiosemicarbazone

    Energy Technology Data Exchange (ETDEWEB)

    Behmadi, Hossein [Department of Applied Chemistry, Mashhad Branch, Islamic Azad University, Mashhad (Iran, Islamic Republic of); Zamani, Hassan Ali [Department of Chemistry, Quchan Branch, Islamic Azad University, Quchan (Iran, Islamic Republic of)], E-mail: haszamani@yahoo.com; Ganjali, Mohammad Reza; Norouzi, Parviz [Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran (Iran, Islamic Republic of); Endocrine and Metabolism Research Center, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of)

    2007-12-31

    The PVC membrane, containing benzyl bisthiosemicarbazone (BTC) as a suitable ionophore, exhibited a Nernstian response for the Nd{sup 3+} ions over a wide concentration range between 1.0 x 10{sup -2} and 1 x 10{sup -6} M, with a detection limit of 6.2 x 10{sup -7} M in the pH range of 3.7-8.3. It demonstrated a fast response time (<10 s) and it could be used for at least 7 weeks without any major potential deviation. Furthermore, the electrode revealed high selectivity with respect to all the common alkali, alkaline earth, transition and heavy metal ions, including the members of the lanthanide family other than Nd{sup 3+}. Concerning its applications, it was effectively employed for the determination of neodymium ions in soil and sediment samples and its validation with CRM.

  18. Electroanalytical performance of a terbium(III)-selective sensor based on a neutral ionophore in environmental and medicinal samples

    Energy Technology Data Exchange (ETDEWEB)

    Gupta, V.K.; Singh, A.K.; Gupta, Barkha [Indian Institute of Technology-Roorkee, Department of Chemistry, Roorkee (India)

    2008-04-15

    A new highly selective terbium(III) electrode was prepared with a polymeric film doped using S-2-benzothiazolyl-2-amino-{alpha}-(methoxyimino)-4-thiazolethiol acetate as an electroactive material, benzyl acetate (BA) as a plasticizer, and potassium tetrakis(4-chlorophenyl) borate (KTpClPB) as an anionic site in the percentage ratio 3.17:1.58:63.4:31.7 (ionophore-KTpClPB-BA-PVC, w/w). The electrode exhibited a linear response with a near Nernstian slope of 19.5 mV/decade within the concentration range 1.5 x 10{sup -7}-1.0 x 10{sup -2} M terbium ions, with a working pH range from 2.0 to 8.0, and a fast response time of 10 s and presented satisfactory reproducibility. The limit of detection was 9.3 x 10{sup -8} M. The results show that this electrode can be used in ethanol media up to 30% (v/v) concentration without interference. It can be used for 3 months without any considerable divergence in the potentials. Selectivity coefficients for terbium(III) with respect to many cations were investigated. The electrode is highly selective for terbium(III) ions over a large number of monovalent, bivalent, and trivalent cations. This shows the valuable property of the proposed electrode. The stability constant of the ionophore towards Tb{sup 3+} ions was determined with the sandwich membrane method. It was successfully used as an indicator electrode in potentiometric determination of terbium(III) ions with EDTA and in direct determination in tap water and binary mixtures with quantitative results. The utility of the proposed electrode was also determined in the presence of ionic and nonionic surfactants and in the presence of fluoride ions in four pharmaceutical (mouthwash) preparations. (orig.)

  19. Electroanalytical performance of a terbium(III)-selective sensor based on a neutral ionophore in environmental and medicinal samples

    International Nuclear Information System (INIS)

    A new highly selective terbium(III) electrode was prepared with a polymeric film doped using S-2-benzothiazolyl-2-amino-α-(methoxyimino)-4-thiazolethiol acetate as an electroactive material, benzyl acetate (BA) as a plasticizer, and potassium tetrakis(4-chlorophenyl) borate (KTpClPB) as an anionic site in the percentage ratio 3.17:1.58:63.4:31.7 (ionophore-KTpClPB-BA-PVC, w/w). The electrode exhibited a linear response with a near Nernstian slope of 19.5 mV/decade within the concentration range 1.5 x 10-7-1.0 x 10-2 M terbium ions, with a working pH range from 2.0 to 8.0, and a fast response time of 10 s and presented satisfactory reproducibility. The limit of detection was 9.3 x 10-8 M. The results show that this electrode can be used in ethanol media up to 30% (v/v) concentration without interference. It can be used for 3 months without any considerable divergence in the potentials. Selectivity coefficients for terbium(III) with respect to many cations were investigated. The electrode is highly selective for terbium(III) ions over a large number of monovalent, bivalent, and trivalent cations. This shows the valuable property of the proposed electrode. The stability constant of the ionophore towards Tb3+ ions was determined with the sandwich membrane method. It was successfully used as an indicator electrode in potentiometric determination of terbium(III) ions with EDTA and in direct determination in tap water and binary mixtures with quantitative results. The utility of the proposed electrode was also determined in the presence of ionic and nonionic surfactants and in the presence of fluoride ions in four pharmaceutical (mouthwash) preparations. (orig.)

  20. Bi(III)4-methylpiperidinedithiocarbamate coprecipitation procedure for separation-pre-concentration of trace metal ions in water samples by flame atomic absorption spectrometric determination

    International Nuclear Information System (INIS)

    A pre-concentration method was developed for determination of trace amounts of cadmium, copper and lead in water samples by FAAS after coprecipitation by using potassium 4-methylpiperidinedithiocarbamate (K4-MPDC) as a chelating agent and Bi(III) as a carrier element. This procedure is based on filtration of the solution containing precipitate on a cellulose nitrate membrane filter following Cd(II), Cu(II) and Pb(II) coprecipitation with Bi(III)4-MPDC and then the precipitates together with membrane filter were dissolved in concentrated nitric acid. The metal contents of the final solution were determined by FAAS. Several parameters including pH of sample solution, amount of carrier element and reagent, standing time, sample volume for precipitation and the effects of diverse ions were examined. The accuracy of the method was tested with standard reference material (MBH, C31XB20 and CRM BCR-32) and Cd, Cu and Pb added samples. Determination of Cd, Cu and Pb was carried out in sea water, river water and tap water samples. The recoveries were >95%. The relative standard deviations of determination were less than 10%

  1. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 9 Spectroscopic Galaxy Sample

    CERN Document Server

    Anderson, Lauren; Bailey, Stephen; Bizyaev, Dmitry; Blanton, Michael; Bolton, Adam S; Brinkmann, J; Brownstein, Joel R; Burden, Angela; Cuesta, Antonio J; da Costa, Luiz N A; Dawson, Kyle S; de Putter, Roland; Eisenstein, Daniel J; Gunn, James E; Guo, Hong; Hamilton, Jean-Christophe; Harding, Paul; Ho, Shirley; Honscheid, Klaus; Kazin, Eyal; Kirkby, D; Kneib, Jean-Paul; Labatie, Antione; Loomis, Craig; Lupton, Robert H; Malanushenko, Elena; Malanushenko, Viktor; Mandelbaum, Rachel; Manera, Marc; Maraston, Claudia; McBride, Cameron K; Mehta, Kushal T; Mena, Olga; Montesano, Francesco; Muna, Demetri; Nichol, Robert C; Nuza, Sebastian E; Olmstead, Matthew D; Oravetz, Daniel; Padmanabhan, Nikhil; Palanque-Delabrouille, Nathalie; Pan, Kaike; Parejko, John; Paris, Isabelle; Percival, Will J; Petitjean, Patrick; Prada, Francisco; Reid, Beth; Roe, Natalie A; Ross, Ashley J; Ross, Nicholas P; Samushia, Lado; Sanchez, Ariel G; Schneider, David J Schlegel Donald P; Scoccola, Claudia G; Seo, Hee-Jong; Sheldon, Erin S; Simmons, Audrey; Skibba, Ramin A; Strauss, Michael A; Swanson, Molly E C; Thomas, Daniel; Tinker, Jeremy L; Tojeiro, Rita; Magana, Mariana Vargas; Verde, Licia; Wagner, Christian; Wake, David A; Weaver, Benjamin A; Weinberg, David H; White, Martin; Xu, Xiaoying; Yeche, Christophe; Zehavi, Idit; Zhao, Gong-Bo

    2012-01-01

    We present measurements of galaxy clustering from the Baryon Oscillation Spectroscopic Survey (BOSS), which is part of the Sloan Digital Sky Survey III (SDSS-III). These use the Data Release 9 (DR9) CMASS sample, which contains 264,283 massive galaxies covering 3275 square degrees with an effective redshift z=0.57 and redshift range 0.43 < z < 0.7. Assuming a concordance Lambda-CDM cosmological model, this sample covers an effective volume of 2.2 Gpc^3, and represents the largest sample of the Universe ever surveyed at this density, n = 3 x 10^-4 h^-3 Mpc^3. We measure the angle-averaged galaxy correlation function and power spectrum, including density-field reconstruction of the baryon acoustic oscillation (BAO) feature. The acoustic features are detected at a significance of 5\\sigma in both the correlation function and power spectrum. Combining with the SDSS-II Luminous Red Galaxy Sample, the detection significance increases to 6.7\\sigma. Fitting for the position of the acoustic features measures the ...

  2. Sampling

    CERN Document Server

    Thompson, Steven K

    2012-01-01

    Praise for the Second Edition "This book has never had a competitor. It is the only book that takes a broad approach to sampling . . . any good personal statistics library should include a copy of this book." —Technometrics "Well-written . . . an excellent book on an important subject. Highly recommended." —Choice "An ideal reference for scientific researchers and other professionals who use sampling." —Zentralblatt Math Features new developments in the field combined with all aspects of obtaining, interpreting, and using sample data Sampling provides an up-to-date treat

  3. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 10 and 11 galaxy samples

    CERN Document Server

    Anderson, Lauren; Bailey, Stephen; Beutler, Florian; Bhardwaj, Vaishali; Blanton, Michael; Bolton, Adam S; Brinkmann, J; Brownstein, Joel R; Burden, Angela; Chuang, Chia-Hsun; Cuesta, Antonio J; Dawson, Kyle S; Eisenstein, Daniel J; Escoffier, Stephanie; Gunn, James E; Guo, Hong; Ho, Shirley; Honscheid, Klaus; Howlett, Cullan; Kirkby, David; Lupton, Robert H; Manera, Marc; Maraston, Claudia; McBride, Cameron K; Mena, Olga; Montesano, Francesco; Nichol, Robert C; Nuza, Sebastian E; Olmstead, Matthew D; Padmanabhan, Nikhil; Palanque-Delabrouille, Nathalie; Parejko, John; Percival, Will J; Petitjean, Patrick; Prada, Francisco; Price-Whelan, Adrian M; Reid, Beth; Roe, Natalie A; Ross, Ashley J; Ross, Nicholas P; Sabiu, Cristiano G; Saito, Shun; Samushia, Lado; Sanchez, Ariel G; Schlegel, David J; Schneider, Donald P; Scoccola, Claudia G; Seo, Hee-Jong; Skibba, Ramin A; Strauss, Michael A; Swanson, Molly E C; Thomas, Daniel; Tinker, Jeremy L; Tojeiro, Rita; Magana, Mariana Vargas; Verde, Licia; Wake, David A; Weaver, Benjamin A; Weinberg, David H; White, Martin; Xu, Xiaoying; Yeche, Christophe; Zehavi, Idit; Zhao, Gong-Bo

    2013-01-01

    We present a one per cent measurement of the cosmic distance scale from the detections of the baryon acoustic oscillations in the clustering of galaxies from the Baryon Oscillation Spectroscopic Survey (BOSS), which is part of the Sloan Digital Sky Survey III (SDSS-III). Our results come from the Data Release 11 (DR11) sample, containing nearly one million galaxies and covering approximately 8500 square degrees and the redshift range $0.2samples. Assuming a concordance $\\Lambda$CDM cosmological model, the DR11 sample covers a volume of 13Gpc${}^3$ and is the largest region of the Universe ever surveyed at this density. We measure the correlation function and power spectrum, including density-field reconstruction of the baryon acoustic oscillation (BAO) feature. The acoustic features are detected at a significance of over $7\\sigma$ in both the correlation function and power spectrum. Fitting for the position of the ...

  4. Ultrasound-assisted cloud point extraction for speciation and indirect spectrophotometric determination of chromium(III) and (VI) in water samples

    Science.gov (United States)

    Hashemi, Mahdi; Daryanavard, Seyed Mosayeb

    Ultrasound-assisted cloud point extraction (UACPE) procedure was developed for speciation and indirect spectrophotometric determination of chromium(III) and (VI) in environmental water samples. The method is based on the reduction of Cr(VI) by iodide in acidic media and subsequently formation of I3- anion. The I3- formed can further react with cetyltrimethylammonium bromide (CTAB) and induce its clouding due to formation of an ion-association complex. The formed complex was separated from solution and dissolved in ethanol for spectrophotometric measurement. Cerium(IV) ammonium sulphate was chosen as an oxidizing reagent for pre-oxidation step of Cr(III) to Cr(VI) species before the addition of iodide to the system, up to chromium in trivalent can be determined by the procedure. Experimental parameters for both spectrophotometric reaction and extraction procedure have been optimized. Under optimized conditions Cr(VI) can be determined in the range 20-400 ng mL-1 (R2 = 0.999). Detection limit, preconcentration factor and relative standard deviation were 12 ng mL-1, 20.0 and 2.2% (n = 5), respectively with 10 mL sample volumes. The proposed method has been successfully applied for determination of chromium(V) in spiked water, synthetic seawater and electroplating wastewater samples with average recoveries of 100.1, 99.4 and 99.1%, respectively.

  5. Highly tunable heterogeneously integrated III-V on silicon sampled-grating distributed Bragg reflector lasers operating in the O-band.

    Science.gov (United States)

    Duprez, Helene; Jany, Christophe; Seassal, Christian; Ben Bakir, Badhise

    2016-09-01

    We report on the design, fabrication and performance of the first hetero-integrated III-V on silicon sampled-grating distributed Bragg reflector lasers (SGDBR) operating in the O-band and based on direct bonding and adiabatic coupling. Two devices with different geometric parameters are presented both showing an output power in the Si waveguide as high as 7.5 mW and a continuous tuning range of 27 and 35 nm respectively with a side mode suppression ration higher than 35 dB. PMID:27607693

  6. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey:galaxy clustering measurements in the low-redshift sample of Data Release 11

    OpenAIRE

    Tojeiro, R.; Ross, A. J.; Burden, A; Samushia, L.; Manera, M; Percival, W J; Beutler, F.; Brinkmann, J.; Brownstein, J. R.; Cuesta, A. J.; Dawson, K.; Eisenstein, D. J.; Ho, S.; Howlett, C.; Mcbride, C. K.

    2014-01-01

    RT is thankful for support from the European Research Council and the Science & Technology Facilities Council. We present the distance measurement to z = 0.32 using the eleventh data release (DR) of the Sloan Digital Sky Survey-III Baryon Acoustic Oscillation Survey (BOSS). We use 313 780 galaxies of the low-redshift (LOWZ) sample over 7341 square degrees to compute DV=(1264 ± 25)(rd/rd,fid}) - a sub 2 per cent measurement - using the baryon acoustic feature measured in the galaxy two-poin...

  7. Comparison of geochemical data obtained using four brine sampling methods at the SECARB Phase III Anthropogenic Test CO2 injection site, Citronelle Oil Field, Alabama

    Science.gov (United States)

    Conaway, Christopher; Thordsen, James J.; Manning, Michael A.; Cook, Paul J.; Trautz, Robert C.; Thomas, Burt; Kharaka, Yousif K.

    2016-01-01

    The chemical composition of formation water and associated gases from the lower Cretaceous Paluxy Formation was determined using four different sampling methods at a characterization well in the Citronelle Oil Field, Alabama, as part of the Southeast Regional Carbon Sequestration Partnership (SECARB) Phase III Anthropogenic Test, which is an integrated carbon capture and storage project. In this study, formation water and gas samples were obtained from well D-9-8 #2 at Citronelle using gas lift, electric submersible pump, U-tube, and a downhole vacuum sampler (VS) and subjected to both field and laboratory analyses. Field chemical analyses included electrical conductivity, dissolved sulfide concentration, alkalinity, and pH; laboratory analyses included major, minor and trace elements, dissolved carbon, volatile fatty acids, free and dissolved gas species. The formation water obtained from this well is a Na–Ca–Cl-type brine with a salinity of about 200,000 mg/L total dissolved solids. Differences were evident between sampling methodologies, particularly in pH, Fe and alkalinity. There was little gas in samples, and gas composition results were strongly influenced by sampling methods. The results of the comparison demonstrate the difficulty and importance of preserving volatile analytes in samples, with the VS and U-tube system performing most favorably in this aspect.

  8. Experience on determination trace amount of uranium in plutonium oxide samples by ID-TIMS technique using indigenous TIMS (III)

    International Nuclear Information System (INIS)

    ID- TIMS method using 233U as spike and an alternative procedure adopted for ion exchange separation of uranium from bulk of Plutonium in Plutonium oxide samples was accurate and precise. The acetic acid anion exchange procedure has a better separation than compared to the standard ion exchange procedure, which was observed by the accuracy and precision values obtained in our experiments

  9. Automated determination of nitrate plus nitrite in aqueous samples with flow injection analysis using vanadium (III) chloride as reductant.

    Science.gov (United States)

    Wang, Shu; Lin, Kunning; Chen, Nengwang; Yuan, Dongxing; Ma, Jian

    2016-01-01

    Determination of nitrate in aqueous samples is an important analytical objective for environmental monitoring and assessment. Here we report the first automatic flow injection analysis (FIA) of nitrate (plus nitrite) using VCl3 as reductant instead of the well-known but toxic cadmium column for reducing nitrate to nitrite. The reduced nitrate plus the nitrite originally present in the sample react with the Griess reagent (sulfanilamide and N-1-naphthylethylenediamine dihydrochloride) under acidic condition. The resulting pink azo dye can be detected at 540 nm. The Griess reagent and VCl3 are used as a single mixed reagent solution to simplify the system. The various parameters of the FIA procedure including reagent composition, temperature, volume of the injection loop, and flow rate were carefully investigated and optimized via univariate experimental design. Under the optimized conditions, the linear range and detection limit of this method are 0-100 µM (R(2)=0.9995) and 0.1 µM, respectively. The targeted analytical range can be easily extended to higher concentrations by selecting alternative detection wavelengths or increasing flow rate. The FIA system provides a sample throughput of 20 h(-1), which is much higher than that of previously reported manual methods based on the same chemistry. National reference solutions and different kinds of aqueous samples were analyzed with our method as well as the cadmium column reduction method. The results from our method agree well with both the certified value and the results from the cadmium column reduction method (no significant difference with P=0.95). The spiked recovery varies from 89% to 108% for samples with different matrices, showing insignificant matrix interference in this method. PMID:26695325

  10. Expression profiling of blood samples from an SU5416 Phase III metastatic colorectal cancer clinical trial: a novel strategy for biomarker identification

    Directory of Open Access Journals (Sweden)

    Smolich Beverly D

    2003-02-01

    Full Text Available Abstract Background Microarray-based gene expression profiling is a powerful approach for the identification of molecular biomarkers of disease, particularly in human cancers. Utility of this approach to measure responses to therapy is less well established, in part due to challenges in obtaining serial biopsies. Identification of suitable surrogate tissues will help minimize limitations imposed by those challenges. This study describes an approach used to identify gene expression changes that might serve as surrogate biomarkers of drug activity. Methods Expression profiling using microarrays was applied to peripheral blood mononuclear cell (PBMC samples obtained from patients with advanced colorectal cancer participating in a Phase III clinical trial. The PBMC samples were harvested pre-treatment and at the end of the first 6-week cycle from patients receiving standard of care chemotherapy or standard of care plus SU5416, a vascular endothelial growth factor (VEGF receptor tyrosine kinase (RTK inhibitor. Results from matched pairs of PBMC samples from 23 patients were queried for expression changes that consistently correlated with SU5416 administration. Results Thirteen transcripts met this selection criterion; six were further tested by quantitative RT-PCR analysis of 62 additional samples from this trial and a second SU5416 Phase III trial of similar design. This method confirmed four of these transcripts (CD24, lactoferrin, lipocalin 2, and MMP-9 as potential biomarkers of drug treatment. Discriminant analysis showed that expression profiles of these 4 transcripts could be used to classify patients by treatment arm in a predictive fashion. Conclusions These results establish a foundation for the further exploration of peripheral blood cells as a surrogate system for biomarker analyses in clinical oncology studies.

  11. Adult Attachment and Psychotherapy

    OpenAIRE

    Rietzschel, Julia

    2012-01-01

    This thesis explores the association between adult attachment and psychological therapy by examining attachment as an outcome variable of therapy, as well as a predictor of therapy outcome. The literature review systematically explores research that has examined changes in attachment representations during psychological therapy. The purpose of the review is to enhance understanding of change processes in adult attachment and to provide empirical support to the premises of attachment theory. I...

  12. Attachment behavior in rats

    OpenAIRE

    Sigling, H.O.

    2009-01-01

    This thesis describes studies into the rat as an animal model for attachment, along the lines of Bowlby's attachment theory. First, the relation between attachment and human psychopathology is reviewed. The conclusion is that psychopathology is more frequent in insecure attached persons and that there is a relationship between specific types of insecure attachment and specific types of psychiatric disorders. Next, a reinterpretation of the literature on social preference experiments in rodent...

  13. Adult attachment styles

    Directory of Open Access Journals (Sweden)

    Maša Žvelc

    2007-01-01

    Full Text Available Theory of attachment primarily described early relationships between a child and his caretakers. In the last twenty years there is a growing interest in adult attachment research. Theories and research findings of adult attachment stem from two different methodological approaches. The first approach measures adult attachment through Adult Attachment Interview (AAI; Main, 1991 where the attachment is assessed through the narratives of adult people of their early child experiences with their primary caretakers. The second approach measures adult attachment with the help of self-evaluative questionnaires, developed by (a Hazan and Shaver (1987 who started this approach in the field of personality and social psychology, and (b Bartholomew and Horowitz (1991. Research shows that there is significant correlation between early and adult attachment style. Attachment styles are passed from generation to generation. Basic adult attachment styles are: securely attached, preoccupied, fearful-avoidant, dismissing-avoidant and disorganized. Previous research using Barholomew and Horowitz (1991 Relationship Questionnaire on 176 Slovenian students showed that 48% students are securely attached, 29% are fearful-avoidant, 10% are dismissing-avoidant, and 13% have preoccupied attachment style. Theory of attachment is very useful for understanding the behavior and subjective experiences of children and adults. It is applicable to different contexts (psychotherapy, counseling, education .... The paper proposes further research focused on integration of adult attachment styles and types of object relations measured by Test of object relations (Žvelc, 1998 and Pictorial test of Separation and Individuation (Žvelc, 2003.

  14. CA II TRIPLET SPECTROSCOPY OF SMALL MAGELLANIC CLOUD RED GIANTS. III. ABUNDANCES AND VELOCITIES FOR A SAMPLE OF 14 CLUSTERS

    Energy Technology Data Exchange (ETDEWEB)

    Parisi, M. C.; Clariá, J. J.; Marcionni, N. [Observatorio Astronómico, Universidad Nacional de Córdoba, Laprida 854, Córdoba, CP 5000 (Argentina); Geisler, D.; Villanova, S. [Departamento de Astronomía, Universidad de Concepción Casilla 160-C, Concepción (Chile); Sarajedini, A. [Department of Astronomy, University of Florida P.O. Box 112055, Gainesville, FL 32611 (United States); Grocholski, A. J., E-mail: celeste@oac.uncor.edu, E-mail: claria@oac.uncor.edu, E-mail: nmarcionni@oac.uncor.edu, E-mail: dgeisler@astro-udec.cl, E-mail: svillanova@astro-udec.cl, E-mail: ata@astro.ufl.edu, E-mail: grocholski@phys.lsu.edu [Department of Physics and Astronomy, Louisiana State University 202 Nicholson Hall, Tower Drive, Baton Rouge, LA 70803-4001 (United States)

    2015-05-15

    We obtained spectra of red giants in 15 Small Magellanic Cloud (SMC) clusters in the region of the Ca ii lines with FORS2 on the Very Large Telescope. We determined the mean metallicity and radial velocity with mean errors of 0.05 dex and 2.6 km s{sup −1}, respectively, from a mean of 6.5 members per cluster. One cluster (B113) was too young for a reliable metallicity determination and was excluded from the sample. We combined the sample studied here with 15 clusters previously studied by us using the same technique, and with 7 clusters whose metallicities determined by other authors are on a scale similar to ours. This compilation of 36 clusters is the largest SMC cluster sample currently available with accurate and homogeneously determined metallicities. We found a high probability that the metallicity distribution is bimodal, with potential peaks at −1.1 and −0.8 dex. Our data show no strong evidence of a metallicity gradient in the SMC clusters, somewhat at odds with recent evidence from Ca ii triplet spectra of a large sample of field stars. This may be revealing possible differences in the chemical history of clusters and field stars. Our clusters show a significant dispersion of metallicities, whatever age is considered, which could be reflecting the lack of a unique age–metallicity relation in this galaxy. None of the chemical evolution models currently available in the literature satisfactorily represents the global chemical enrichment processes of SMC clusters.

  15. Ca II Triplet Spectroscopy of Small Magellanic Cloud Red Giants. III. Abundances and Velocities for a Sample of 14 Clusters

    CERN Document Server

    Parisi, M C; Clariá, J J; Villanova, S; Marcionni, N; Sarajedini, A; Grocholski, A J

    2015-01-01

    We obtained spectra of red giants in 15 Small Magellanic Cloud (SMC) clusters in the region of the CaII lines with FORS2 on the Very Large Telescope (VLT). We determined the mean metallicity and radial velocity with mean errors of 0.05 dex and 2.6 km/s, respectively, from a mean of 6.5 members per cluster. One cluster (B113) was too young for a reliable metallicity determination and was excluded from the sample. We combined the sample studied here with 15 clusters previously studied by us using the same technique, and with 7 clusters whose metallicities determined by other authors are on a scale similar to ours. This compilation of 36 clusters is the largest SMC cluster sample currently available with accurate and homogeneously determined metallicities. We found a high probability that the metallicity distribution is bimodal, with potential peaks at -1.1 and -0.8 dex. Our data show no strong evidence of a metallicity gradient in the SMC clusters, somewhat at odds with recent evidence from CaT spectra of a lar...

  16. (Sub)millimetre interferometric imaging of a sample of COSMOS/AzTEC submillimetre galaxies III. Environments

    CERN Document Server

    Smolcic, V; Tomicic, N; Zamorani, G; Finoguenov, A; Lemaux, B C; Aravena, M; Capak, P; Chiang, Y-K; Civano, F; Delvecchio, I; Ilbert, O; Jurlin, N; Karim, A; Laigle, C; Fevre, O Le; Marchesi, S; McCracken, H J; Riechers, D A; Salvato, M; Schinnerer, E; Tasca, L; Toft, S

    2016-01-01

    We study the environment of 23 submillimetre galaxies (SMGs) drawn from the JCMT/AzTEC 1.1mm S/N-limited sample in the COSMOS field, as well as 4 COSMOS SMGs at z_spec>4.5, and 1 at z_spec=2.49, yielding a sample of 28 SMGs. We search for overdensities using the COSMOS photometric redshifts based on over 30 UV-NIR photometric bands, reaching an accuracy of sigma(Delta z/(1+z))=0.0067 (0.0155) at z3.5). To identify overdensities we apply the Voronoi tessellation analysis, and estimate the overdensity estimator delta_g as a function of distance from the SMG and/or overdensity center. We test and validate our approach via simulations, X-ray detected groups, and spectroscopic verifications using VUDS and zCOSMOS catalogues showing that even with photometric redshifts in COSMOS we can efficiently retrieve overdensities out to z~5. Our results yield that 11/23 (48%) JCMT/AzTEC 1.1mm SMGs occupy overdense environments. Considering the entire JCMT/AzTEC 1.1mm S/N>4 sample, and accounting for the expected fraction of ...

  17. Spectroscopy of 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) attached to rare gas samples: Clusters vs. bulk matrices. II. Fluorescence emission spectroscopy

    OpenAIRE

    Dvorak, Matthieu; Mueller, Markus; Knoblauch, Tobias; Buenermann, Oliver; Rydlo, Alexandre; Minniberger, Stefan; Harbich, Wolfgang; Stienkemeier, Frank

    2012-01-01

    The interaction between 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) molecules and solid rare gas samples is studied by means of fluorescence emission spectroscopy. Laser-excited PTCDA-doped large argon, neon, and para-hydrogen clusters along with PTCDA embedded in helium nanodroplets are spectroscopically characterized with respect to line broadening and shifting. A fast non-radiative relaxation is observed before a radiative decay in the electronic ground state takes place. In co...

  18. Cloud Point Extraction Using Tergitol TMN-6 of Gold(III)in Real Samples by Flame Atomic Absorption Spectrometry Determination

    International Nuclear Information System (INIS)

    A simple, safe and rapid method on the basis of cloud point extraction (CPE) with tergitol TMN-6 had been used for the preconcentration and extraction of gold(Au) ion in selenium reduction solution sample prior to flame atomic absorption spectrometry (FAAS).Pyrrolidine dithio formic acid salt (PDFAS) which was regarded as a selective complexing agent could formed stable Au-complex with Au ion, and Au-complex could be extracted by TMN-6 at a short time. Some influencing factors such as sample pH, concentration of TMN-6, concentration of PDFAS and the effect of foreign ions were further researched .Under the optimum conditions, the limit of detection (LOD) was 1.3 meu g L/sup -1/, the calibration graph was linear in the range of 0-500 meu g/L and the relative standard deviation (RSD%) was 2.0%(n=8). The CPE method had been shown to be a useful and effective methodology for the separation of Au, with a preconcentration factor of 30. The recoveries of the spiked Au(?) ions were got in the range 95-103%. (author)

  19. A Homogeneous Sample of Sub-DLAs III: Total Gas Mass Omega_(HI+HeII) at z>2

    CERN Document Server

    Peroux, C; D'Odorico, S; Kim, T S; McMahon, R G; Peroux, Celine; Dessauges-Zavadsky, Miroslava; Odorico, Sandro D'; Kim, Tae Sun; Mahon, Richard G. Mc

    2005-01-01

    Absorbers seen in the spectrum of background quasars are a unique tool to select HI-rich galaxies at all redshifts. In turns, these allow to determine the cosmological evolution of the HI gas, Omega_HI+HeII, a possible indicator of gas consumption as star formation proceeds. The Damped Lyman-alpha systems (DLAs with N(HI) > 10^20.3 cm^-2), in particular, are believed to contain a large fraction of the HI gas but there are also indications that lower column density systems, named ``sub-Damped Lyman-alpha'' systems play a role at high-redshift. Here we present the discovery of high-redshift sub-DLAs based on 17 z>4 quasar spectra observed with the Ultraviolet-Visual Echelle Spectrograph (UVES) on VLT. This sample is composed of 21 new sub-DLAs which, together with another 10 systems from previous ESO archive studies, make up a homogeneous sample. The redshift evolution of the number density of several classes of absorbers is derived and shows that all systems seem to be evolving in the redshift range from z=5 t...

  20. The ESO UVES Advanced Data Products Quasar Sample - III. Evidence of Bimodality in the [N/alpha] Distribution

    CERN Document Server

    Zafar, Tayyaba; Peroux, Celine; Molaro, Paolo; D'Odorico, Valentina; Vladilo, Giovanni; Popping, Attila

    2014-01-01

    We report here a study of nitrogen and $\\alpha$-capture element (O, S, and Si) abundances in 18 Damped Ly$\\alpha$ Absorbers (DLAs) and sub-DLAs drawn from the ESO-UVES Advanced Data Products (EUADP) database. We report 9 new measurements, 5 upper and 4 lower limits of nitrogen that when compiled with available nitrogen measurements from the literature makes a sample of 108 systems. The extended sample presented here confirms the [N/$\\alpha$] bimodal behaviour suggested in previous studies. Three-quarter of the systems show $\\langle$[N/$\\alpha$]$\\rangle=-0.85$ ($\\pm$0.20 dex) and one-quarter ratios are clustered at $\\langle$[N/$\\alpha$]$\\rangle= -1.41$ ($\\pm$0.14 dex). The high [N/$\\alpha$] plateau is consistent with the HII regions of dwarf irregular and blue compact dwarf galaxies although extended to lower metallicities and could be interpreted as the result of a primary nitrogen production by intermediate mass stars. The low [N/$\\alpha$] values are the lowest ever observed in any astrophysical site. In spi...

  1. ATLASGAL-selected massive clumps in the inner Galaxy III. Dust Continuum Characterization of an Evolutionary Sample

    CERN Document Server

    König, C; Csengeri, T; Leurini, S; Wyrowski, F; Giannetti, A; Wienen, M; Pillai, T; Kauffmann, J; Menten, K M; Schuller, F

    2016-01-01

    The ATLASGAL survey provides an ideal basis for detailed studies of large numbers of massive star forming clumps covering the whole range of evolutionary stages. The ATLASGAL Top100 is a sample of clumps selected from their infrared and radio properties to be representative for the whole range of evolutionary stages. The ATLASGAL Top100 sources are the focus of a number of detailed follow-up studies that will be presented in a series of papers. In the present work we use the dust continuum emission to constrain the physical properties of this sample and identify trends as a function of source evolution. We determine flux densities from mid-infrared to submm wavelength (8-870 micron) images and use these values to fit their spectral energy distributions (SEDs) and determine their dust temperature and flux. Combining these with recent distances from the literature including maser parallax measurements we determine clump masses, luminosities and column densities. We find trends for increasing temperature, lumino...

  2. Constraint on the time variation of the fine-structure constant with the SDSS-III/BOSS DR12 quasar sample

    Science.gov (United States)

    Albareti, Franco D.; Comparat, Johan; Gutiérrez, Carlos M.; Prada, Francisco; Pâris, Isabelle; Schlegel, David; López-Corredoira, Martín; Schneider, Donald P.; Manchado, Arturo; García-Hernández, D. A.; Petitjean, Patrick; Ge, Jian

    2015-10-01

    From the Sloan Digital Sky Survey (SDSS) Data Release 12, which covers the full Baryonic Oscillation Spectroscopic Survey (BOSS) footprint, we investigate the possible variation of the fine-structure constant over cosmological time-scales. We analyse the largest quasar sample considered so far in the literature, which contains 13 175 spectra (10 363 from SDSS-III/BOSS DR12 + 2812 from SDSS-II DR7) with redshift z < 1. We apply the emission-line method on the [O III] doublet (λλ 4960, 5008 Å) and obtain Δα/α = (0.9 ± 1.8) × 10-5 for the relative variation of the fine-structure constant. We also investigate the possible sources of systematics: misidentification of the lines, sky OH lines, H β and broad line contamination, Gaussian and Voigt fitting profiles, optimal wavelength range for the Gaussian fits, chosen polynomial order for the continuum spectrum, signal-to-noise ratio and good quality of the fits. The uncertainty of the measurement is dominated by the sky subtraction. The results presented in this work, being systematics limited, have sufficient statistics to constrain robustly the variation of the fine-structure constant in redshift bins (Δz ≈ 0.06) over the last 7.9 Gyr. In addition, we study the [Ne III] doublet (λλ 3869, 3968 Å) present in 462 quasar spectra and discuss the systematic effects on using these emission lines to constrain the fine-structure constant variation. Better constraints on Δα/α (< 10-6) using the emission-line method would be possible with high-resolution spectroscopy and large galaxy/qso surveys.

  3. The Penn State - Toru\\'n Centre for Astronomy Planet Search stars. III. The evolved stars sample

    CERN Document Server

    Niedzielski, A; Adamczyk, M; Adamów, M; Nowak, G; Wolszczan, A

    2015-01-01

    We present basic atmospheric parameters ($T_{eff}$, $log g$, $v_{t}$ and [Fe/H]), rotation velocities and absolute radial velocities as well as luminosities, masses, ages and radii for 402 stars (including 11 single-lined spectroscopic binaries), mostly subgiants and giants. For 272 of them we present parameters for the first time. For another 53 stars we present estimates of $T_{eff}$ and $log g$ based on photometric calibrations. More than half objects were found to be subgiants, there is also a large group of giants and a few stars appeard to be dwarfs. The results show that the presented sample is composed of stars with masses ranging from 0.52 to $3.21 M_{\\odot}$ of which 17 have masses $\\geq$ $2.0 M_{\\odot}$. The radii of stars studied in this paper range from 0.66 to $36.04 R_{\\odot}$ with vast majority having radii between 2.0 and $4.0 R_{\\odot}$. They are generally less metal abundant than the Sun with median [Fe/H]$=-0.07$. For 62 stars in common with other planet searches we found a very good agree...

  4. Spectroscopy of 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) attached to rare gas samples: Clusters vs. bulk matrices. II. Fluorescence emission spectroscopy

    Science.gov (United States)

    Dvorak, Matthieu; Müller, Markus; Knoblauch, Tobias; Bünermann, Oliver; Rydlo, Alexandre; Minniberger, Stefan; Harbich, Wolfgang; Stienkemeier, Frank

    2012-10-01

    The interaction between 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) molecules and solid rare gas samples is studied by means of fluorescence emission spectroscopy. Laser-excited PTCDA-doped large argon, neon, and para-hydrogen clusters along with PTCDA embedded in helium nanodroplets are spectroscopically characterized with respect to line broadening and shifting. A fast non-radiative relaxation is observed before a radiative decay in the electronic ground state takes place. In comparison, fluorescence emission studies of PTCDA embedded in bulk neon and argon matrices result in much more complex spectral signatures characterized by a splitting of the different emission lines. These can be assigned to the appearance of site isomers of the surrounding matrix lattice structure.

  5. Explaining gender differences in preschoolers’ attachment style

    OpenAIRE

    Tønnessen, Ellen

    2014-01-01

    Gender has throughout most attachment literature not been considered an important factor in the development of individual differences in attachment. However, some studies on preschoolers, especially using story completion/narrative measures of attachment representations, have found prominent gender differences. The present study aims to replicate such gender differences, and to examine possible explanatory variables. This will be done by using a large community sample of preschoolers from Nor...

  6. Boosting Lya and HeII 1640A Line Fluxes from Pop III Galaxies: Stochastic IMF Sampling and Departures from Case-B

    CERN Document Server

    Mas-Ribas, Lluís; Forero-Romero, Jaime E

    2016-01-01

    We revisit calculations of nebular hydrogen Lya and HeII 1640A line strengths for population III galaxies, undergoing continuous and bursts of star formation. We focus on initial mass functions (IMFs) motivated by recent theoretical studies, which generally span a lower range of stellar masses than earlier works. We also account for case-B departures and the stochastic sampling of the IMF. In agreement with previous works, we find that departures from case-B can enhance the Lya flux by a factor of a few, but we argue that this enhancement is driven mainly by collisional excitation and ionization, and not due to photoionization from the n = 2 state of atomic hydrogen. The increased sensitivity of the Lya flux to the high-energy end of the galaxy spectrum makes it more subject to stochastic sampling of the IMF. The latter introduces a dispersion in the predicted nebular line fluxes around the deterministic value by as much as a factor of ~4. In contrast, the stochastic sampling of the IMF has less impact on the...

  7. Electron-attachment processes

    International Nuclear Information System (INIS)

    Topics covered include: (1) modes of production of negative ions, (2) techniques for the study of electron attachment processes, (3) dissociative electron attachment to ground-state molecules, (4) dissociative electron attachment to hot molecules (effects of temperature on dissociative electron attachment), (5) molecular parent negative ions, and (6) negative ions formed by ion-pair processes and by collisions of molecules with ground state and Rydberg atoms

  8. Belt attachment and system

    Science.gov (United States)

    Schneider, Abraham D.; Davidson, Erick M.

    2016-02-02

    Disclosed herein is a belt assembly including a flexible belt with an improved belt attachment. The belt attachment includes two crossbars spaced along the length of the belt. The crossbars retain bearings that allow predetermined movement in six degrees of freedom. The crossbars are connected by a rigid body that attaches to the bearings. Implements that are attached to the rigid body are simply supported but restrained in pitching rotation.

  9. Attachment Without Fear

    OpenAIRE

    Bell, David C.

    2009-01-01

    John Bowlby hypothesized an attachment system that interacts with caregiving, exploration, and fear systems in the brain, with a particular emphasis on fear. Neurobiological research confirms many of his hypotheses and also raises some new questions. A psychological model based on this neurobiological research is presented here. The model extends conventional attachment theory by describing additional attachment processes independent of fear. In this model, the attachment elements of trust, o...

  10. Special Attachments. Module 19.

    Science.gov (United States)

    South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

    This module on special attachments, one in a series dealing with industrial sewing machines, their attachments, and operation, covers four topics: gauges; cording attachment; zipper foot; and hemming, shirring, and binding. For each topic these components are provided: an introduction, directions, an objective, learning activities, student…

  11. Precision Attachment: Retained Overdenture

    OpenAIRE

    Jayasree, K; Mrs.M.Bharathi; Nag, V. Dileep; B. Vinod

    2011-01-01

    Precision attachments are small interlocking devices to connect prosthesis and abutments that offer a variety of solutions to the challenge of balance between functional stability and cosmetic appeal. Precision attachments have wide applications, used in fixed removable bridge, removable partial dentures, overdentures, implant retained overdentures, and maxillofacial prosthesis. Attachment retained overdentures helps in distribution of masticatory forces, minimizes trauma to abutments and sof...

  12. Attachment and Psychopathology

    Directory of Open Access Journals (Sweden)

    Mehmet Fatih Ustundag

    2011-06-01

    Full Text Available The type of attachment defined in the early stages of life and thought to be continuous, is a phenomenon that shapes the pattern of how a person makes contact with others. The clinical appearance of every type of attachment is different and each one has prospective and retrospective phenomenological reflections. In all stages of life and in close relationships, it can be observed if a person gets in close contact with someone else and if this relation bears supportive and protective qualities. According to attachment theorists, once it is defined as safe or unsafe during nursing period, it shows little change. Starting from Bowlby’s work, unsafe attachment type is considered as the determining factor of psychopathology in the later periods of life, while safe attachment is considered as in relation with healthy processes. The nature’s original model is safe attachment. Anxious/indecisive attachment, an unsafe attachment type, is associated with anxiety disorders and depressive disorder, while avoidant attachment is associated with behavior disorder and other extroverted pathologies. Disorganized/disoriented attachment is considered to be together with dissociative disorder. The aim of this paper is to review attachment theory and the relation between attachment and psychopathology.

  13. Adult Attachment and Developmental Personality Styles: An Empirical Study

    Science.gov (United States)

    Sherry, Alissa; Lyddon, William J.; Henson, Robin K.

    2007-01-01

    The current study was designed to test specific hypotheses associated with W. J. Lyddon and A. Sherry's (2001) attachment theory model of developmental personality styles. More specifically, 4 adult attachment dimensions were correlated with 10 personality scales on the Millon Clinical Multiaxial Inventory-III (T. Millon, R. Davis, & C. Millon,…

  14. Attachment theory: A review of research

    Directory of Open Access Journals (Sweden)

    Polovina Nada

    2005-01-01

    Full Text Available Research of attachment is numerous and versatile. They differ according to problems addressed, methodology applied (longitudinal studies, studies with horizontal designs, different instruments used, different methods of data analysis, and characteristics of samples involved (concerning age socio/economic status, family ecology. The research is commonly relied on the core assumptions of the theory itself, and the shared characteristic is orientation to explore complex phenomena of human experience and functioning. From the vast variety of research only those who most directly test the basic assumptions of the attachment theory are focused and addressed in the paper: representation of patterns of attachment in the childhood and adulthood, stability and change of attachment security from infancy to early adulthood, transgenerational transmission of attachment characteristics, the place and the role of attachment behavioral system in the personality development. The aim of the paper is to highlight the basic research and theory issues and directions, and illustrate them with concrete research date.

  15. THE FMOS-COSMOS SURVEY OF STAR-FORMING GALAXIES AT z ∼ 1.6. III. SURVEY DESIGN, PERFORMANCE, AND SAMPLE CHARACTERISTICS

    Energy Technology Data Exchange (ETDEWEB)

    Silverman, J. D.; Sugiyama, N. [Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, 277-8583 (Japan); Kashino, D. [Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Nagoya, 464-8602 (Japan); Sanders, D.; Zahid, J.; Kewley, L. J.; Chu, J.; Hasinger, G. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI, 96822 (United States); Kartaltepe, J. S. [National Optical Astronomy Observatory, 950 N. Cherry Ave., Tucson, AZ, 85719 (United States); Arimoto, N. [Subaru Telescope, 650 North A’ohoku Place, Hilo, Hawaii, 96720 (United States); Renzini, A. [Instituto Nazionale de Astrofisica, Osservatorio Astronomico di Padova, vicolo dell’Osservatorio 5, I-35122, Padova, Italy, EU (Italy); Rodighiero, G.; Baronchelli, I. [Dipartimento di Fisica e Astronomia, Universita di Padova, vicolo Osservatorio, 3, I-35122, Padova (Italy); Daddi, E.; Juneau, S. [Laboratoire AIM, CEA/DSM-CNRS-Universite Paris Diderot, Irfu/Service d’Astrophysique, CEA Saclay (France); Nagao, T. [Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577 (Japan); Lilly, S. J.; Carollo, C. M. [Institute of Astronomy, ETH Zürich, CH-8093, Zürich (Switzerland); Capak, P. [Spitzer Science Center, California Institute of Technology, Pasadena, CA 91125 (United States); Ilbert, O., E-mail: john.silverman@ipmu.jp [Aix Marseille Université, CNRS, LAM (Laboratoire d’Astrophysique de Marseille) UMR 7326, F-13388, Marseille (France); and others

    2015-09-15

    We present a spectroscopic survey of galaxies in the COSMOS field using the Fiber Multi-object Spectrograph (FMOS), a near-infrared instrument on the Subaru Telescope. Our survey is specifically designed to detect the Hα emission line that falls within the H-band (1.6–1.8 μm) spectroscopic window from star-forming galaxies with 1.4 < z < 1.7 and M{sub stellar} ≳ 10{sup 10} M{sub ⊙}. With the high multiplex capability of FMOS, it is now feasible to construct samples of over 1000 galaxies having spectroscopic redshifts at epochs that were previously challenging. The high-resolution mode (R ∼ 2600) effectively separates Hα and [N ii]λ6585, thus enabling studies of the gas-phase metallicity and photoionization state of the interstellar medium. The primary aim of our program is to establish how star formation depends on stellar mass and environment, both recognized as drivers of galaxy evolution at lower redshifts. In addition to the main galaxy sample, our target selection places priority on those detected in the far-infrared by Herschel/PACS to assess the level of obscured star formation and investigate, in detail, outliers from the star formation rate (SFR)—stellar mass relation. Galaxies with Hα detections are followed up with FMOS observations at shorter wavelengths using the J-long (1.11–1.35 μm) grating to detect Hβ and [O iii]λ5008 which provides an assessment of the extinction required to measure SFRs not hampered by dust, and an indication of embedded active galactic nuclei. With 460 redshifts measured from 1153 spectra, we assess the performance of the instrument with respect to achieving our goals, discuss inherent biases in the sample, and detail the emission-line properties. Our higher-level data products, including catalogs and spectra, are available to the community.

  16. Blade attachment assembly

    Science.gov (United States)

    Garcia-Crespo, Andres Jose; Delvaux, John McConnell; Miller, Diane Patricia

    2016-05-03

    An assembly and method for affixing a turbomachine rotor blade to a rotor wheel are disclosed. In an embodiment, an adaptor member is provided disposed between the blade and the rotor wheel, the adaptor member including an adaptor attachment slot that is complementary to the blade attachment member, and an adaptor attachment member that is complementary to the rotor wheel attachment slot. A coverplate is provided, having a coverplate attachment member that is complementary to the rotor wheel attachment slot, and a hook for engaging the adaptor member. When assembled, the coverplate member matingly engages with the adaptor member, and retains the blade in the adaptor member, and the assembly in the rotor wheel.

  17. Differential determination of trace amounts of arsenic(III) and arsenic(V) in seawater by solid sampling atomic absorption spectrometry after preconcentration by coprecipitation with a nickel-pyrrolidine dithiocarbamate complex

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Q.; Minami, H.; Inoue, S.; Atsuya, I

    2004-04-15

    A sensitive and accurate method for the differential determination of trace amounts of arsenic(III) and arsenic(V) in water samples was described. It was found that arsenic(III) was coprecipitated quantitatively with a Ni-ammonium pyrrolidine dithiocarbamate (APDC) complex at the pH range of 2-3, but arsenic(V) was hardly coprecipitated with the Ni-PDC complex in the same pH condition. The coprecipitates obtained were directly measured by electrothermal atomic absorption spectrometry (ETAAS) using the solid sampling technique. In order to determine trace amounts of total arsenic, sodium thiosulfate and potassium iodide were used to reduce arsenic(V) to the trivalent state in the sample solution before coprecipitation. The concentration of arsenic(V) in the sample solution could be calculated by the difference in concentration between arsenic(III) and total arsenic in the sample solution. The coprecipitation conditions for trace amounts of arsenic(III) and arsenic(V) in water samples by the Ni-PDC complex were investigated in detail. The concentration factor by coprecipitation was reached at about 40 000 when 2 mg of nickel as a carrier element was added to 500 ml of the water sample. The proposed method was successfully applied to the determination of trace amounts of arsenic(III) and arsenic(V) in seawater, and the detection limit for arsenic, which was defined as the concentration calculated from three times of the standard deviation of the procedural blanks, was 0.02 ng/ml for 500 ml portions of water sample in the proposed method.

  18. Constraint on the time variation of the fine-structure constant with the SDSS-III/BOSS DR12 quasar sample

    CERN Document Server

    Albareti, Franco D; Gutiérrez, Carlos M; Prada, Francisco; Pâris, Isabelle; Schlegel, David; López-Corredoira, Martín; Schneider, Donald P; Manchado, Arturo; García-Hernández, D A; Petitjean, Patrick; Ge, Jian

    2015-01-01

    From the Sloan Digital Sky Survey Data Release 12, which covers the full Baryonic Oscillation Spectroscopic Survey (BOSS) footprint, we investigate the possible variation of the fine-structure constant over cosmological time scales. We analyze the largest quasar sample considered so far in the literature, which contains 10,363 spectra with $z<1$. All the BOSS quasar spectra are selected from a visually inspected quasar catalog. We apply the emission line method on the [O III] doublet (4960, 5008 A) and obtain $\\Delta\\alpha/\\alpha= \\left(1.4 \\pm 2.3\\right)\\times10^{-5}$ for the relative variation of the fine-structure constant. We also investigate the possible sources of systematics: misidentification of the lines, sky OH lines, H$\\beta$ and broad line contamination, optimal wavelength range for the Gaussian fits, chosen polynomial order for the continuum spectrum, signal-to-noise ratio and good quality of the fits. The uncertainty of the measurement is dominated by the sky subtraction. The results presente...

  19. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample

    CERN Document Server

    Alam, Shadab; Bailey, Stephen; Beutler, Florian; Bizyaev, Dmitry; Blazek, Jonathan A; Bolton, Adam S; Brownstein, Joel R; Burden, Angela; Chuang, Chia-Hsun; Comparat, Johan; Cuesta, Antonio J; Dawson, Kyle S; Eisenstein, Daniel J; Escoffier, Stephanie; Gil-Marín, Héctor; Grieb, Jan Niklas; Hand, Nick; Ho, Shirley; Kinemuchi, Karen; Kirkby, David; Kitaura, Francisco; Malanushenko, Elena; Malanushenko, Viktor; Maraston, Claudia; McBride, Cameron K; Nichol, Robert C; Olmstead, Matthew D; Oravetz, Daniel; Padmanabhan, Nikhil; Palanque-Delabrouille, Nathalie; Pan, Kaike; Pellejero-Ibanez, Marcos; Percival, Will J; Petitjean, Patrick; Prada, Francisco; Price-Whelan, Adrian M; Reid, Beth A; Rodríguez-Torres, Sergio A; Roe, Natalie A; Ross, Ashley J; Ross, Nicholas P; Rossi, Graziano; Rubiño-Martín, Jose Alberto; Sánchez, Ariel G; Saito, Shun; Salazar-Albornoz, Salvador; Samushia, Lado; Satpathy, Siddharth; Scóccola, Claudia G; Schlegel, David J; Schneider, Donald P; Seo, Hee-Jong; Simmons, Audrey; Slosar, Anže; Strauss, Michael A; Swanson, Molly E C; Thomas, Daniel; Tinker, Jeremy L; Tojeiro, Rita; Magaña, Mariana Vargas; Vazquez, Jose Alberto; Verde, Licia; Wake, David A; Wang, Yuting; Weinberg, David H; White, Martin; Wood-Vasey, W Michael; Yèche, Christophe; Zehavi, Idit; Zhai, Zhongxu; Zhao, Gong-Bo

    2016-01-01

    We present cosmological results from the final galaxy clustering data set of the Baryon Oscillation Spectroscopic Survey, part of the Sloan Digital Sky Survey III. Our combined galaxy sample comprises 1.2 million massive galaxies over an effective area of 9329 deg^2 and volume of 18.7 Gpc^3, divided into three partially overlapping redshift slices centred at effective redshifts 0.38, 0.51, and 0.61. We measure the angular diameter distance DM and Hubble parameter H from the baryon acoustic oscillation (BAO) method after applying reconstruction to reduce non-linear effects on the BAO feature. Using the anisotropic clustering of the pre-reconstruction density field, we measure the product DM*H from the Alcock-Paczynski (AP) effect and the growth of structure, quantified by f{\\sigma}8(z), from redshift-space distortions (RSD). We combine measurements presented in seven companion papers into a set of consensus values and likelihoods, obtaining constraints that are tighter and more robust than those from any one m...

  20. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: tomographic BAO analysis of DR12 combined sample in Fourier space

    CERN Document Server

    Zhao, Gong-Bo; Saito, Shun; Wang, Dandan; Ross, Ashley J; Beutler, Florian; Grieb, Jan Niklas; Chuang, Chia-Hsun; Kitaura, Francisco-Shu; Rodriguez-Torres, Sergio; Percival, Will J; Brownstein, Joel R; Cuesta, Antonio J; Eisenstein, Daniel J; Gil-Marín, Héctor; Kneib, Jean-Paul; Nichol, Robert C; Olmstead, Matthew D; Prada, Francisco; Rossi, Graziano; Salazar-Albornoz, Salvador; Samushia, Lado; Sánchez, Ariel G; Thomas, Daniel; Tinker, Jeremy L; Tojeiro, Rita; Weinberg, David H; Zhu, Fangzhou

    2016-01-01

    We perform a tomographic baryon acoustic oscillations (BAO) analysis using the monopole, quadrupole and hexadecapole of the redshift-space galaxy power spectrum measured from the pre-reconstructed combined galaxy sample of the completed Sloan Digital Sky Survey (SDSS-III) Baryon Oscillation Spectroscopic Survey (BOSS) Data Release (DR)12 covering the redshift range of $0.20

  1. Temperament and Attachment Disorders

    Science.gov (United States)

    Zeanah, Charles H.; Fox, Nathan A.

    2004-01-01

    Reviewed in this article is research on children with reactive attachment disorder (RAD) who exhibit specific patterns of socially aberrant behavior resulting from being maltreated or having limited opportunities to form selective attachments. There are no data explaining why 2 different patterns of the disorder, an emotionally withdrawn-inhibited…

  2. Attachment Security and Pain

    DEFF Research Database (Denmark)

    Andersen, Tonny Elmose; Lahav, Yael; Defrin, Ruth;

    2015-01-01

    The present study assesses for the first time, the possible disruption effect of posttraumatic stress symptoms (PTSS) with regard to the protective role of attachment on pain, among ex-POWs. While secure attachment seems to serve as a buffer, decreasing the perception of pain, this function may...

  3. Adolescent attachment and psychopathology.

    Science.gov (United States)

    Rosenstein, D S; Horowitz, H A

    1996-04-01

    The relationships among attachment classification, psychopathology, and personality traits were examined in a group of 60 psychiatrically hospitalized adolescents. The concordance of attachment classification was examined in 27 adolescent-mother pairs. Both adolescent and maternal attachment status were overwhelmingly insecure and were highly concordant. Adolescents showing a dismissing attachment organization were more likely to have a conduct or substance abuse disorder, narcissistic or antisocial personality disorder, and self-reported narcissistic, antisocial, and paranoid personality traits. Adolescents showing a preoccupied attachment organization were more likely to have an affective disorder, obsessive-compulsive, histrionic, borderline or schizotypal personality disorder, and self-reported avoidant, anxious, and dysthymic personality traits. The results support a model of development of psychopathology based partially on relational experiences with parents.

  4. Flame atomic absorption spectrometric determination of trace amounts of Pb(II) and Cr(III) in biological, food and environmental samples after preconcentration by modified nano-alumina

    International Nuclear Information System (INIS)

    A new solid-phase extraction sorbent was used for the preconcentration of Pb(II) and Cr(III) ions prior to their determination by flame atomic absorption spectrometry. It was prepared by immobilization of 2,4-dinitrophenylhydrazine on nano-alumina coated with sodium dodecyl sulfate. The sorbent was characterized by scanning electron microscopy, N2 adsorption and Fourier transform infrared spectrometry, and used for preconcentration and separation of Pb(II) and Cr(III) from aqueous solutions. The ions on the sorbent were eluted with a mixture of nitric acid and methanol. The effects of sample pH, flow rates of samples and eluent, type of eluent, breakthrough volume and potentially interfering ions were studied. Linearity is maintained between 1.2 and 350 μg L-1 of Pb(II), and between 2.4 and 520 μg L-1 of Cr(III) for an 800-mL sample. The detection limit (3 s, N=10) for Pb(II) and Cr(III) ions is 0.43 and 0.55 μg L-1, respectively, and the maximum preconcentration factor is 267. The method was successfully applied to the evaluation of these trace and toxic metals in various water, food, industrial effluent and urine samples. (author)

  5. Parental Attachment and Identity in Portuguese Late Adolescents.

    Science.gov (United States)

    Matos, Paula Mena; Barbosa, Sonia; de Almeida, Helena Milheiro; Costa, Maria Emilia

    1999-01-01

    Based on life span attachment perspective and on identity status paradigm, this study investigated the relationship between attachment and identity in a sample of 361 Portuguese late adolescents as a function of parental and adolescent gender. The results indicated gender differences in the association between attachment variables and identity…

  6. Nano sponge Mn₂O ₃ as a new adsorbent for the preconcentration of Pd(II) and Rh(III) ions in sea water, wastewater, rock, street sediment and catalytic converter samples prior to FAAS determinations.

    Science.gov (United States)

    Yavuz, Emre; Tokalıoğlu, Serife; Sahan, Halil; Patat, Saban

    2014-10-01

    In this study, a nano sponge Mn2O3 adsorbent was synthesized and was used for the first time. Various parameters affecting the recovery values of Pd(II) and Rh(III) were examined. The tolerance limits (≥ 90 %) for both Pd(II) and Rh(III) ions were found to be 75,000 mg L(-1) Na(I), 75,000 mg L(-1) K(I), 50,000 mg L(-1) Mg(II) and 50,000 mg L(-1) Ca(II). A 30s contact time was enough for both adsorption and elution. A preconcentration factor of 100 was obtained by using 100mg of the nano sponge Mn2O3. The reusability of the adsorbent was 120 times. Adsorption capacities for Pd(II) and Rh(III) were found to be 42 and 6.2 mg g(-1), respectively. The detection limits were 1.0 µg L(-1) for Pd(II) and 0.37 µg L(-1) for Rh(III) and the relative standard deviations (RSD, %) were found to be ≤ 2.5%. The method was validated by analyzing the standard reference material, SRM 2556 (Used Auto Catalyst Pellets) and spiked real samples. The optimized method was applied for the preconcentration of Pd(II) and Rh(III) ions in water (sea water and wastewater), rock, street sediment and catalytic converter samples. PMID:25059126

  7. Continuities and changes in infant attachment patterns across two generations.

    Science.gov (United States)

    Raby, K Lee; Steele, Ryan D; Carlson, Elizabeth A; Sroufe, L Alan

    2015-01-01

    This study examined the intergenerational continuities and changes in infant attachment patterns within a higher-risk longitudinal sample of 55 female participants born into poverty. Infant attachment was assessed using the Strange Situation when participants were 12 and 18 months as well as several decades later with participants' children. Paralleling earlier findings from this sample on the stability of attachment patterns from infancy to young adulthood, results provided evidence for intergenerational continuities in attachment disorganization but not security. Children of adults with histories of infant attachment disorganization were at an increased risk of forming disorganized attachments. Although changes in infant attachment patterns across the two generations were not correlated with individuals' caregiving experiences or interpersonal stresses and supports during childhood and adolescence, higher quality social support during adulthood was associated with intergenerational changes from insecure to secure infant-caregiver attachment relationships. PMID:26213155

  8. Attachment-related psychodynamics.

    Science.gov (United States)

    Shaver, Phillip R; Mikulincer, Mario

    2002-09-01

    Because there has been relatively little communication and cross-fertilization between the two major lines of research on adult attachment, one based on coded narrative assessments of defensive processes, the other on simple self-reports of 'attachment style' in close relationships, we here explain and review recent work based on a combination of self-report and other kinds of method, including behavioral observations and unconscious priming techniques. The review indicates that considerable progress has been made in testing central hypotheses derived from attachment theory and in exploring unconscious, psychodynamic processes related to affect-regulation and attachment-system activation. The combination of self-report assessment of attachment style and experimental manipulation of other theoretically pertinent variables allows researchers to test causal hypotheses. We present a model of normative and individual-difference processes related to attachment and identify areas in which further research is needed and likely to be successful. One long-range goal is to create a more complete theory of personality built on attachment theory and other object relations theories.

  9. Metabolic Syndrome and Cardiovascular Risk Factors in a National Sample of Adolescent Population in the Middle East and North Africa: The CASPIAN III Study

    Directory of Open Access Journals (Sweden)

    Patricia Khashayar

    2013-01-01

    Full Text Available Objective. The present study was designed to investigate the prevalence of different combinations of the metabolic syndrome (MetS risk factors among a nationally representative sample of adolescents in the Middle East and North Africa (MENA. Methods. The study sample, obtained as part of the third study of the school-based surveillance system entitled CASPIAN III, was representative of the Iranian adolescent population aged from 10 to 18 years. The prevalence of different components of MetS was studied and their discriminative value was assessed by receiver operating characteristic (ROC curve analysis. Results. The study participants consisted of 5738 students (2875 girls with mean age of 14.7±2.4 years living in 23 provinces in Iran; 17.4% of participants were underweight and 17.7% were overweight or obese. Based on the criteria of the International Diabetes Federation for the adolescent age group, 24.2% of participants had one risk factor, 8.0% had two, 2.1% had three, and 0.3% had all the four components of MetS. Low HDL-C was the most common component (43.2% among the overweight/obese versus 34.9% of the normal-weight participants, whereas high blood pressure was the least common component. The prevalence of MetS was 15.4% in the overweight/obese participants, the corresponding figure was 1.8% for the normal-weight students, and 2.5% in the whole population studied. Overweight/obese subjects had a 9.68 increased odds of (95% CI: 6.65–14.09 the MetS compared to their normal-weight counterparts. For all the three risk factors, AUC ranged between 0.84 and 0.88, 0.83 and 0.87, and 0.86 and 0.89 in waist circumference, abdominal obesity, and BMI for boys and between 0.78 and 0.97, 0.67 and 0.93, and 0.82 and 0.96 for girls, respectively. Conclusion. The findings from this study provide alarming evidence-based data on the considerable prevalence of obesity, MetS, and CVD risk factors in the adolescent age group. These results are confirmatory

  10. The neurobiology of attachment.

    Science.gov (United States)

    Insel, T R; Young, L J

    2001-02-01

    It is difficult to think of any behavioural process that is more intrinsically important to us than attachment. Feeding, sleeping and locomotion are all necessary for survival, but humans are, as Baruch Spinoza famously noted, "a social animal" and it is our social attachments that we live for. Over the past decade, studies in a range of vertebrates, including humans, have begun to address the neural basis of attachment at a molecular, cellular and systems level. This review describes some of the important insights from this work.

  11. Mothers of Securely Attached Children with Autism Spectrum Disorder Are More Sensitive than Mothers of Insecurely Attached Children

    Science.gov (United States)

    Koren-Karie, Nina; Oppenheim, David; Dolev, Smadar; Yirmiya, Nurit

    2009-01-01

    In the current study we examined the links between maternal sensitivity and children's secure attachment in a sample of 45 preschool-age boys with Autism Spectrum Disorders (ASD). We hypothesized that mothers of securely attached children would be more sensitive to their children than mothers of insecurely attached children. Children's attachment…

  12. The relationship of adult attachment dimensions to pain-related fear, hypervigilance, and catastrophizing.

    Science.gov (United States)

    McWilliams, Lachlan A; Asmundson, Gordon J G

    2007-01-01

    Despite the prominence of fear-avoidance models of chronic pain, there is a paucity of research regarding the origins of pain-related fear. Based on the premise that insecure attachment could be a developmentally based origin of elevated fear of pain, associations between adult attachment dimensions and constructs included in fear-avoidance models of chronic pain were investigated. Consistent with Bartholomew and Horowitz's [Bartholomew K, Horowitz LM. Attachment styles among young adults: a test of a four-category model. J Pers Soc Psychol 1991;61:226-44.] model, attachment was conceptualized as being comprised of a model of self dimension (i.e., degree of anxiety regarding rejection based on beliefs of personal unworthiness) and a model of others dimension (i.e., degree of interpersonal mistrust and discomfort with interpersonal closeness). A large university student sample free of chronic pain (N=278) completed a measure of adult romantic attachment (i.e., Experiences in Close Relationships Questionnaire; [Brennan KA, Clark CL, Shaver PR. Self-report measurement of adult attachment: an integrative overview. In: Simpson JA, Rholes WS, editors. Attachment theory and close relationships. New York: The Guilford Press, 1998. p. 46-76.]), the Fear of Pain Questionnaire-III [McNeil DW, Rainwater AJ. Development of the fear of pain questionnaire - III. J Behav Med 1998;21:389-410.], the Pain Vigilance and Awareness Questionnaire [McCracken LM. Attention to pain in persons with chronic pain: a behavioural approach. Behav Ther 1997;28:271-84.], and the Pain Catastrophizing Scale [Sullivan MJ, Bishop SR, Pivik J. The pain catastrophizing scale: development and validation. Psychol Assess 1995;7:24-532.]. It was hypothesized that insecure attachment would be positively associated with reports of pain-related fear, hypervigilance, and catastrophizing and that the model of self dimension would be the attachment variable most strongly associated with these variables

  13. Romantic adult attachment and basic personality structure

    Directory of Open Access Journals (Sweden)

    Jelena Zeleskov Djoric

    2012-03-01

    Full Text Available The main goal of this study was localization of attachment dimensions in the space described by basic personality traits. Study purported to examine relations between attachment and basic personality structure, in a sample of 203 respondents. Romantic adult attachment was measured by the Experience in Close Relationship Scale, basic personality structure was assessed by the NEO-PI-R personality inventory, and Disintegration, which represents operationalization of Schizotypy as a basic personality trait, was estimated by the Delta 10 test. The results of Principal component analysis showed that attachment dimensions are not separate constructs in relation to basic personality traits. Furthermore, results indicate that attachment dimensions represent emotional dysregulation in close interpersonal relationships, because positive correlations are found between dimensions of Attachment and Mania (.35, Anxiety (.51 and Depression (.55. Negative correlations have been obtained between Attachment and Positive emotions (-.34 and Feelings (-.31. These results suggest that Attachment dimensions should be considered as an expression of basic personality traits in romantic adult's relationships.

  14. Attachment dimensions as a predictor of emotional intelligence and sociability.

    OpenAIRE

    Svensson, Helen

    2011-01-01

    One of the ways in which the attachment relationships we develop during infancy influence us throughout life is by emotion regulation. Although studies have shown that attachment orientations affect emotional functioning, the effect of attachment dimensions on overall emotional functioning and sociability has still not been investigated. The purpose of the present study was to examine if attachment dimensions predict emotional intelligence (EI) and sociability. The sample consisted of 75 psyc...

  15. Adult attachment styles and the psychological response to infant bereavement

    OpenAIRE

    Shevlin, Mark; Boyda, David; Elklit, Ask; Murphy, Siobhan

    2014-01-01

    Background: Based on Bowlby’s attachment theory, Bartholomew proposed a four-category attachment typology by which individuals judged themselves and adult relationships. This explanatory model has since been used to help explain the risk of psychiatric comorbidity.Objective: The current study aimed to identify attachment typologies based on Bartholomew’s attachment styles in a sample of bereaved parents on dimensions of closeness/dependency and anxiety. In addition, it sought to assess the re...

  16. Determination of As(III) and As(V) species in some natural water and food samples by solid-phase extraction on Streptococcus pyogenes immobilized on Sepabeads SP 70 and hydride generation atomic absorption spectrometry.

    Science.gov (United States)

    Uluozlu, Ozgur Dogan; Tuzen, Mustafa; Mendil, Durali; Soylak, Mustafa

    2010-05-01

    The speciation of arsenic(III) and arsenic(V) by using Streptococcus pyogenes immobilized on Sepabeads SP 70 resin has been investigated with solid-phase extraction method. The arsenic levels were determined hydride generation atomic absorption spectrometry (HGAAS) in sample solutions. The procedure presented based on quantitative recoveries of As(III) as >95%. Also the As(V) recoveries were obtained as method. After reduction of As(V) by using KI and ascorbic acid and waiting 1h later, the system was applied to determination of total arsenic. As(V) was found as the difference between the total As and As(III) content. Various experimental parameters such as pH, amount of microorganism, sample volume, etc. were investigated. The capacity of biosorbent for arsenic(III) was calculated as 7.3 mg/g. The preconcentration factor was found as 36. The relative standard deviation was calculated below 8%. Limit of detection was calculated as 13 ng/L. The validation of the presented procedure was tested by analysis of standard reference materials (NIST SRM 1568a Rice floor and GBW 07605 Tea) and obtained fairly compatible results. The procedure was also successfully applied to arsenic speciation and determination of some natural water and food samples.

  17. The Relation of Insecure Attachment States of Mind and Romantic Attachment Styles to Adolescent Aggression in Romantic Relationships

    OpenAIRE

    Miga, Erin M.; Hare, Amanda; Allen, Joseph P.; Manning, Nell

    2010-01-01

    The relation of attachment states of mind and self reported attachment relationship styles to romantic partner aggression was examined in a community sample of 93 adolescents. Higher levels of insecure-preoccupied and insecure-dismissing states of mind, as assessed by the Adolescent Attachment Interview at age 14, were predictive, respectively, of perpetration and victimization of psychological aggression in romantic relationships four years later. Partners’ romantic attachment anxiety was li...

  18. Attachment and Psychotherapy

    OpenAIRE

    McKay, J.M.

    2010-01-01

    The aim of this study was to explore the relationship between therapy outcome, the therapeutic alliance and both patient and therapist attachment styles. 14 therapists and 27 patients participated. 78.57% (n = 11) therapists and 29.63% (n = 8) patients were classified as securely attached by self-report measures. It was predicted that more patients of secure therapists would show clinically significant improvement as determined by CORE-OM scores. However, 21.05% of patients with a secure atta...

  19. Attachment and coercive sexual behavior.

    Science.gov (United States)

    Smallbone, S W; Dadds, M R

    2000-01-01

    This study examined the relationships between childhood attachment and coercive sexual behavior. One hundred sixty-two male undergraduate students completed self-report measures of childhood maternal attachment, childhood paternal attachment, adult attachment, antisociality, aggression, and coercive sexual behavior. As predicted, insecure childhood attachment, especially insecure paternal attachment, was associated with antisociality, aggression, and coercive sexual behavior. Moreover, childhood attachment independently predicted coercive sexual behavior after antisociality and aggression were statistically controlled. The hypothesis that paternal avoidant attachment would predict coercive sexual behavior independently of its relationship with aggression and antisociality was also supported. Posthoc analysis indicated that maternal anxious attachment was associated with antisociality and that paternal avoidant attachment was associated with both antisociality and coercive sexual behavior. These results are consistent with criminological and psychological research linking adverse early family experiences with offending and lend support to an attachment-theoretical framework for understanding offending behavior in general and sexual offending behavior in particular.

  20. Preschool teacher attachment and attention skills.

    Science.gov (United States)

    Commodari, Elena

    2013-01-01

    Attention underlies and energizes all cognitive and behavioral activities. Many studies showed that the quality of child attachment (both to parental and non parental figures) influences cognitive functions and attention. This study aimed to investigate the relationships among attachment to preschool teachers and attention in a sample of preschoolers. In particular, the study analyzed whether child attachment security to preschool teachers influences the different aspects of their attention skills. In addition, gender- and age-related differences in attention and teacher attachment were explored. Research was conducted using two standardized instruments: the Attention and Concentration Battery, and the Attachment Q Sort. Participants were 279 children (147 male, 132 female) who attended two preschools in a town in Southern Italy. Descriptive analyses, t-tests analyses, and correlation and regression analyses were carried out. Findings highlighted several interesting points concerning the relationships that occur among attachment to preschool teachers and attention. Children with secure attachments presented higher reaction time and better auditory, visual, and visual spatial selectivity and maintenance.

  1. Validation of the WMS-III Facial Memory subtest with the Graduate Hospital Facial Memory Test in a sample of right and left anterior temporal lobectomy patients.

    Science.gov (United States)

    Chiaravalloti, Nancy D; Tulsky, David S; Glosser, Guila

    2004-06-01

    A number of studies have shown visuospatial memory deficits following anterior temporal lobectomy (ATL) in the right, nondominant temporal lobe (RATL). The current study examines 26 patients with intractable temporal lobe epilepsy who underwent ATL in either the right (RATL, n = 16) or left temporal lobe (LATL, n = 10) on two tests of facial memory abilities, the Wechsler Memory Scale-III (WMS-III) Faces subtest and the Graduate Hospital Facial Memory Test (FMT). Repeated measures ANOVA on the FMT indicated a significant main effect of side of surgery. The RATL group performed significantly below the LATL group overall. Both groups showed a slight, but non-significant, improvement in performance from pre- to postsurgery on the FMT immediate memory, likely due to practice effects. Repeated measures ANOVA on the WMS-III Faces subtest revealed a significant interaction of group (RATL vs. LATL) by delay (immediate vs. delayed). Overall, the LATL group showed an improvement in recognition scores from immediate to delayed memory, whereas the RATL group performed similarly at both immediate and delayed testing. No effects of surgery were noted on the WMS-III. Following initial data analysis the WMS-III Faces I and II data were re-scored using the scoring suggested by Holdnack and Delis (2003), earlier in this issue. Repeated measures ANOVA revealed a trend toward significance in the three-way interaction of group (RATL vs. LATL) x time of testing (pre- versus postop) x delay (immediate vs. delayed memory). On the Faces I subtest, both the RATL and LATL groups showed a decline from preoperative to postoperative testing. However, on Faces II the LATL group showed an increase in performance from preoperative to postoperative testing, while the RALT group showed a decline in performance from preoperative to postoperative testing. While the FMT appears to be superior to the WMS-III Faces subtest in identifying deficits in facial memory prior to and following RATL, the

  2. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Measuring D_A and H at z=0.57 from the Baryon Acoustic Peak in the Data Release 9 Spectroscopic Galaxy Sample

    OpenAIRE

    Anderson, Lauren; Mena Requejo, Olga

    2013-01-01

    We present measurements of the angular diameter distance to and Hubble parameter at z = 0.57 from the measurement of the baryon acoustic peak in the correlation of galaxies from the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey. Our analysis is based on a sample from Data Release 9 of 264 283 galaxies over 3275 square degrees in the redshift range 0.43 

  3. Ladder attachment platform

    Science.gov (United States)

    Swygert,; Richard, W [Springfield, SC

    2012-08-28

    A ladder attachment platform is provided that includes a base for attachment to a ladder that has first and second side rails and a plurality of rungs that extend between in a lateral direction. Also included is a user platform for having a user stand thereon that is carried by the base. The user platform may be positioned with respect to the ladder so that it is not located between a first plane that extends through the first side rail and is perpendicular to the lateral direction and a second plane that extends through the second side rail and is perpendicular to the lateral direction.

  4. MOWER ATTACHMENT NOISE

    OpenAIRE

    Mosdzianowski, G.

    1990-01-01

    The noise produced by grass mowing attachments fitted to small tractors and combining a number of rotary blades with a total cutting width of up to 120 cm was investigated. The paper develops a noise reduction concept based on an analysis of sound sources.

  5. Attachment and Personality Disorders

    Science.gov (United States)

    Sinha, Preeti; Sharan, Pratap

    2007-01-01

    Personality disorders (PDs) arise from core psychopathology of interpersonal relationships and understanding of self and others. The distorted representations of self and others, as well as unhealthy relationships that characterize persons with various PDs, indicate the possibility that persons with PDs have insecure attachment. Insecure…

  6. Attachment of Adolescents to Parents: Turkey Profile

    Directory of Open Access Journals (Sweden)

    Turkan Dogan

    2016-12-01

    Full Text Available The present study aims to determine the attachment of adolescents to their parents according to geographical regions in Turkey and gender. The research group consisted of 6061 adolescents. With an age average of 15.53 years. The Inventory of Attachment to Parents and Friends- Brief Form (EABE was used as data acquisition tool. The results of the study indicated significant difference between the scores of students regarding the inventory of attachment to parents according to regions. Evaluating the findings regarding attachment to father and mother together, the findings were similar, and the attachment levels of adolescents in Middle Anatolia, Eastern Anatolia and Black Sea Region were found to be higher than the ones in other regions. This result may be related with socioeconomic, geographical and cultural structures of the regions. Examining the finding according to gender variable, the scores of male students are significantly lower than the scores of female students. As a result according to the data gained from a wide sample group; the main factors for the attachment of adolescents to their parents in Turkey are the geographical regions in Turkey and the gender. [Psikiyatride Guncel Yaklasimlar - Current Approaches in Psychiatry 2016; 8(4.000: 406-419

  7. Mediators of the Link Between Adult Attachment and Mindfulness

    Directory of Open Access Journals (Sweden)

    Jon G. Caldwell

    2013-12-01

    Full Text Available The capacity to be mindfully aware of the present moment without judgment is associated with a number of positive psychological and physiological outcomes. Experiences in attachment relationships are related to specific cognitive-emotional patterns that may contribute to dispositional mindfulness. A sample of adults (N = 93 completed questionnaires regarding adult attachment, rumination, thought suppression, attentional control, and mindfulness. Attachment-related avoidance predicted lower levels of mindfulness, a relation mediated by thought suppression and poorer attentional control. Attachment-related anxiety also predicted lower levels of mindfulness, a relation mediated by rumination and poorer attentional control. The results suggest that in the context of insecure attachment relationships thought suppression and rumination defend against personal and interpersonal losses by deactivating (in the case of avoidance or hyperactivating (in the case of anxiety the attachment system. These habitual defensive patterns may be important links between adult attachment orientations and mindfulness.

  8. Picturing Urban Green Attachments

    DEFF Research Database (Denmark)

    Blok, Anders; Meilvang, Marie Leth

    2015-01-01

    In this article, we explore the cultural-political tensions and ambiguities of urban ecology, by way of following how activists move and translate between ‘familiar’ and ‘public’ engagements in the green city. Empirically, we locate our exploration in and around Nordhavnen (The North Harbor...... in the plural’ in the city. In particular, we stress the role assumed in such engagements by various image-making practices, as means for activists to express, share and render publicly visible a range of embodied urban attachments. Pragmatic sociology, we conclude, may contribute to a novel understanding...... of urban politics as inclusive learning processes, more hospitable to a wider diversity of familiar attachments to cities and their ecologies....

  9. Turbine nozzle attachment system

    Science.gov (United States)

    Norton, Paul F.; Shaffer, James E.

    1995-01-01

    A nozzle guide vane assembly having a preestablished rate of thermal expansion is positioned in a gas turbine engine and being attached to conventional metallic components. The nozzle guide vane assembly includes a pair of legs extending radially outwardly from an outer shroud and a pair of mounting legs extending radially inwardly from an inner shroud. Each of the pair of legs and mounting legs have a pair of holes therein. A plurality of members attached to the gas turbine engine have a plurality of bores therein which axially align with corresponding ones of the pair of holes in the legs. A plurality of pins are positioned within the corresponding holes and bores radially positioning the nozzle guide vane assembly about a central axis of the gas turbine engine.

  10. Predictions of the MCMI-III personality disorders from NEO-PI-R domains and facets: Comparison between American and Spanish samples

    Directory of Open Access Journals (Sweden)

    Anton Aluja

    2007-01-01

    Full Text Available Este estudio ex post facto analiza las relaciones entre las dimensiones y facetas del NEO-PI-R y los 14 trastornos de personalidad del MCMI-III en una muestra no clínica española (N = 674. Se exploran las diferencias y similitudes con los resultados de Dyce y O'Connor en una muestra americana con los mismos instrumentos. Como se esperaba, los análisis factoriales de facetas reteniendo cinco factores mostraron un modelo de relaciones muy similar entre ambas muestras, con un coeficiente de la congruencia total de 0,92, y coeficientes de congruencia de factor aceptables, salvo para el factor Apertura (0,68. En consonancia con las predicciones de Widiger y Widiger et al. los porcentajes de correlaciones significativas estaban alrededor de 60% en ambas muestras, y la mayoría coincidían. El análisis de regresión múltiple con dimensiones también reveló un gran parecido entre los resultados americanos y españoles, Neuroticismo fue el predictor más relacionado con los trastornos de personalidad. Se encontraron diferencias en las regresiones por facetas, aunque la varianza explicada fue prácticamente la misma que en las dimensiones. Se discute la validez transcultural y el valor predictivo del NEO-PI-R sobre los trastornos de personalidad del MCMI-III, junto con las ventajas relativas de las facetas sobre las dimensiones.

  11. Universally Rigid Framework Attachments

    CERN Document Server

    Ratmanski, Kiril

    2010-01-01

    A framework is a graph and a map from its vertices to R^d. A framework is called universally rigid if there is no other framework with the same graph and edge lengths in R^d' for any d'. A framework attachment is a framework constructed by joining two frameworks on a subset of vertices. We consider an attachment of two universally rigid frameworks that are in general position in R^d. We show that the number of vertices in the overlap between the two frameworks must be sufficiently large in order for the attachment to remain universally rigid. Furthermore, it is shown that universal rigidity of such frameworks is preserved even after removing certain edges. Given positive semidefinite stress matrices for each of the two initial frameworks, we analytically derive the PSD stress matrices for the combined and edge-reduced frameworks. One of the benefits of the results is that they provide a general method for generating new universally rigid frameworks.

  12. Attachment disorganization in different clinical groups: What underpins unresolved attachment?

    OpenAIRE

    Juen Florian; Arnold Lisa; Meissner Dominik; Nolte Tobias; Buchheim Anna

    2013-01-01

    This paper summarizes findings and clinical implications of research on attachment disorganization in diverse clinical groups. Disorganized/unresolved attachment is overrepresented in these groups compared to healthy control participants, but disorder specific characteristics of this attachment pattern are still poorly understood. The focus of this study was to explore defensive processes in participants whose narratives were classified as disorganized/unresolved using the Adult Attach...

  13. Maternal anxiety, maternal sensitivity, and attachment

    NARCIS (Netherlands)

    Stevenson-Hinde, J.; Chicot, R.; Schouldice, A.; Hinde, C.A.

    2013-01-01

    Previous research has related maternal anxiety to insecurity of attachment. Here we ask whether different aspects of maternal sensitivity mediate this link. From a community sample of intact families with 1-3 children, mothers with 4.5-year-olds were selected for low, medium, or high anxiety levels

  14. Maternal anxiety, maternal sensitivity, and attachment

    NARCIS (Netherlands)

    Stevenson-Hinde, Joan; Chicot, Rebecca; Shouldice, Anne; Hinde, Camilla A.

    2016-01-01

    Previous research has related maternal anxiety to insecurity of attachment. Here we ask whether different aspects of maternal sensitivity mediate this link. From a community sample of intact families with 1-3 children, mothers with 4.5-year-olds were selected for low, medium, or high anxiety leve

  15. A longitudinal study of maternal attachment and infant developmental outcomes.

    Science.gov (United States)

    Alhusen, Jeanne L; Hayat, Matthew J; Gross, Deborah

    2013-12-01

    Extant research has demonstrated that compared to adults with insecure attachment styles, more securely attached parents tend to be more responsive, sensitive, and involved parents, resulting in improved outcomes for their children. Less studied is the influence of a mother's attachment style on her attachment to her unborn child during pregnancy and the consequent developmental outcomes of the child during early childhood. Thus, the aim of this prospective longitudinal study was to examine the relationship between maternal-fetal attachment (MFA) during pregnancy and infant and toddler outcomes and the role of mothers' attachment style on early childhood developmental outcomes in an economically disadvantaged sample of women and their children. Gamma regression modeling demonstrated that an avoidant maternal attachment style (b = .98, 95 % CI [.97, .98], p styles and greater depressive symptomatology were more likely to have children demonstrating early childhood developmental delays than those women with less avoidant attachment styles and less depressive symptomatology. Furthermore, women reporting higher MFA during pregnancy had more secure attachment styles, and their children had more optimal early childhood development than those women reporting lower MFA and less secure attachment styles. Findings have implications for enhancing early intervention programs aimed at improving maternal and childhood outcomes. An earlier identification of disruptions in attachment may be beneficial in tailoring interventions focused on the mother-child dyad.

  16. Mediators of the Link Between Adult Attachment and Mindfulness

    OpenAIRE

    Caldwell, Jon G.; Shaver, Phillip R.

    2013-01-01

    The capacity to be mindfully aware of the present moment without judgment is associated with a number of positive psychological and physiological outcomes. Experiences in attachment relationships are related to specific cognitive-emotional patterns that may contribute to dispositional mindfulness. A sample of adults (N = 93) completed questionnaires regarding adult attachment, rumination, thought suppression, attentional control, and mindfulness. Attachment-related avoidance predicted lower l...

  17. Attachment as an Organizational Construct

    Science.gov (United States)

    Sroufe, L. Alan; Waters, Everett

    1977-01-01

    Discusses the conflict between situational influences and stable individual differences in attachment behavior and attempts to resolve this conflict by examining the functions, outcomes, and context sensitivity of attachment behavior and the underlying behavioral control systems that organize it. (JMB)

  18. Comparative validity of the Adult Attachment Interview and the Adult Attachment Projective.

    Science.gov (United States)

    Jones-Mason, Karen; Allen, I Elaine; Hamilton, Steve; Weiss, Sandra J

    2015-01-01

    The Adult Attachment Interview (AAI) and the Adult Attachment Projective (AAP) purport to measure the same attachment classifications. The aims of this study were to determine the concurrent validity of the AAI and AAP, and to compare their ability to predict indicators of risk associated with socioeconomic status (SES), depression, and 5-HTTLPR genotype. Results indicated no agreement between AAI and AAP attachment classifications in a sample of late adolescents. As predicted, individuals classified as "unresolved" with regard to loss or trauma were significantly more likely to be of lower SES, have higher levels of depression, and have the 5-HTTLPR "ss" genotype than individuals with secure, preoccupied, or dismissing attachments. These associations, however, were only significant when attachment was classified with the AAI. Results suggest that the AAI and AAP measure different facets of attachment as a result of their unique methodologies and coding criteria. Further research is needed to support their comparability before investigators can assume that the AAP is a valid substitute for the AAI. PMID:26362584

  19. Sexuality examined through the lens of attachment theory: attachment, caregiving, and sexual satisfaction.

    Science.gov (United States)

    Péloquin, Katherine; Brassard, Audrey; Lafontaine, Marie-France; Shaver, Phillip R

    2014-01-01

    Attachment researchers have proposed that the attachment, caregiving, and sexual behavioral systems are interrelated in adult love relationships (Mikulincer & Shaver, 2007 ). This study examined whether aspects of partners' caregiving (proximity, sensitivity, control, compulsive caregiving) mediated the association between their attachment insecurities (anxiety and avoidance) and each other's sexual satisfaction in two samples of committed couples (Study 1: 126 cohabiting or married couples from the general community; Study 2: 55 clinically distressed couples). Partners completed the Experiences in Close Relationships measure (Brennan, Clark, & Shaver, 1998 ), the Caregiving Questionnaire (Kunce & Shaver, 1994 ), and the Global Measure of Sexual Satisfaction (Lawrance & Byers, 1998 ). Path analyses based on the actor-partner interdependence model (APIM) revealed that caregiving proximity mediated the association between low attachment avoidance and partners' sexual satisfaction in distressed and nondistressed couples. Sensitivity mediated this association in nondistressed couples only. Control mediated the association between men's insecurities (attachment-related avoidance and anxiety) and their partners' low sexual satisfaction in nondistressed couples. Attachment anxiety predicted compulsive caregiving, but this caregiving dimension was not a significant mediator. These results are discussed in light of attachment theory and their implications for treating distressed couples.

  20. Attachment Behaviors in Autistic Children.

    Science.gov (United States)

    Sigman, Marian; Ungerer, Judy A.

    1984-01-01

    Observation of 14 autistic and 14 nonautistic children of equivalent mental age revealed that autistic Ss showed evidence of attachment to their mothers. Among autistic Ss, those showing increased attachment behaviors in response to separation and reunion demonstrated more advanced symbolic play skills than those showing no attachment change.…

  1. Attachment Theory: Retrospect and Prospect.

    Science.gov (United States)

    Bretherton, Inge

    1985-01-01

    Provides overview of attachment theory as parented by John Bowlby in "Attachment and Loss". Uses two major concepts from this work to interpret refinements and elaborations of attachment theory attibuted to Mary Ainsworth. Considers how recent insights into development of socioemotional understanding and development of event representation can be…

  2. Adult attachment styles and the psychological response to infant bereavement

    Directory of Open Access Journals (Sweden)

    Mark Shevlin

    2014-05-01

    Full Text Available Background: Based on Bowlby's attachment theory, Bartholomew proposed a four-category attachment typology by which individuals judged themselves and adult relationships. This explanatory model has since been used to help explain the risk of psychiatric comorbidity. Objective: The current study aimed to identify attachment typologies based on Bartholomew's attachment styles in a sample of bereaved parents on dimensions of closeness/dependency and anxiety. In addition, it sought to assess the relationship between the resultant attachment typology with a range of psychological trauma variables. Method: The current study was based on a sample of 445 bereaved parents who had experienced either peri- or post-natal death of an infant. Adult attachment was assessed using the Revised Adult Attachment Scale (RAAS while reaction to trauma was assessed using the Trauma Symptom Checklist (TSC. A latent profile analysis was conducted on scores from the RAAS closeness/dependency and anxiety subscales to ascertain if there were underlying homogeneous attachment classes. Emergent classes were used to determine if these were significantly different in terms of mean scores on TSC scales. Results: A four-class solution was considered the optimal based on fit statistics and interpretability of the results. Classes were labelled “Fearful,” “Preoccupied,” “Dismissing,” and “Secure.” Females were almost eight times more likely than males to be members of the fearful attachment class. This class evidenced the highest scores across all TSC scales while the secure class showed the lowest scores. Conclusions: The results are consistent with Bartholomew's four-category attachment styles with classes representing secure, fearful, preoccupied, and dismissing types. While the loss of an infant is a devastating experience for any parent, securely attached individuals showed the lowest levels of psychopathology compared to fearful, preoccupied, or dismissing

  3. Adult attachment styles and the psychological response to infant bereavement

    Science.gov (United States)

    Shevlin, Mark; Boyda, David; Elklit, Ask; Murphy, Siobhan

    2014-01-01

    Background Based on Bowlby's attachment theory, Bartholomew proposed a four-category attachment typology by which individuals judged themselves and adult relationships. This explanatory model has since been used to help explain the risk of psychiatric comorbidity. Objective The current study aimed to identify attachment typologies based on Bartholomew's attachment styles in a sample of bereaved parents on dimensions of closeness/dependency and anxiety. In addition, it sought to assess the relationship between the resultant attachment typology with a range of psychological trauma variables. Method The current study was based on a sample of 445 bereaved parents who had experienced either peri- or post-natal death of an infant. Adult attachment was assessed using the Revised Adult Attachment Scale (RAAS) while reaction to trauma was assessed using the Trauma Symptom Checklist (TSC). A latent profile analysis was conducted on scores from the RAAS closeness/dependency and anxiety subscales to ascertain if there were underlying homogeneous attachment classes. Emergent classes were used to determine if these were significantly different in terms of mean scores on TSC scales. Results A four-class solution was considered the optimal based on fit statistics and interpretability of the results. Classes were labelled “Fearful,” “Preoccupied,” “Dismissing,” and “Secure.” Females were almost eight times more likely than males to be members of the fearful attachment class. This class evidenced the highest scores across all TSC scales while the secure class showed the lowest scores. Conclusions The results are consistent with Bartholomew's four-category attachment styles with classes representing secure, fearful, preoccupied, and dismissing types. While the loss of an infant is a devastating experience for any parent, securely attached individuals showed the lowest levels of psychopathology compared to fearful, preoccupied, or dismissing attachment styles. This may

  4. Sulfur geochemistry of hydrothermal waters in Yellowstone National Park, Wyoming, USA. III. An anion-exchange resin technique for sampling and preservation of sulfoxyanions in natural waters

    OpenAIRE

    Ball James W; Nordstrom D Kirk; Schoonen Martin AA; Druschel Greg K; Xu Yong; Cohn Corey A

    2003-01-01

    A sampling protocol for the retention, extraction, and analysis of sulfoxyanions in hydrothermal waters has been developed in the laboratory and tested at Yellowstone National Park and Green Lake, NY. Initial laboratory testing of the anion-exchange resin Bio-Rad™ AG1-X8 indicated that the resin was well suited for the sampling, preservation, and extraction of sulfate and thiosulfate. Synthetic solutions containing sulfate and thiosulfate were passed through AG1-X8 resin columns and eluted w...

  5. A new method for separation and determination of Cr(III) and Cr(VI) in water samples by high-performance liquid chromatography based on anion exchange stationary phase of ionic liquid modified silica.

    Science.gov (United States)

    Sadeghi, Susan; Moghaddam, Ali Zeraatkar

    2015-12-01

    In this work, N-methylimidazolium-chloride ionic liquid functionalized silica was prepared and used as an anion-exchange stationary phase for separation of chromium species by high-performance liquid chromatography (HPLC) with UV detection at 200 nm. The Cr(VI) as HCr2O7(-) and chelated Cr(III) with potassium hydrogen phthalate (PHP) as Cr(PHP)2 (-) was retained on the prepared column and separated using a mobile phase composed of 5% methanol in 25 mM phosphate buffer at pH 6.5. Several variables affecting the chelation/separation steps were modeled by response surface methodology (RSM) using Box-Behnken (BBD) design. The significance of the independent variables and their interactions were tested by the analysis of variances (ANOVA) with 95% confidence limit. Under the optimized conditions, the Cr(III) and Cr(VI) anionic species were well separated with a single peak for each Cr species at retention times of 2.3 and 4.3 min, respectively. The relationship between the peak area and concentration was linear in the range of 0.025-30 for Cr(III) and 0.5-20 mg L(-1) for Cr(VI) with detection limits of 0.010 and 0.210 mg L(-1) for Cr(III) and Cr(VI), respectively. The proposed method was validated by simultaneous separation and determination of the Cr species in tap and underground water samples without impose to any pretreatment. PMID:26526699

  6. Attachment, Acculturation, and Psychosomatic Complaints among Hispanic American University Students

    Science.gov (United States)

    Wang, Chiachih D. C.; Scalise, Dominick A.; Barajas-Munoz, I. Alejandro; Julio, Kathy; Gomez, Ayleen

    2016-01-01

    This study investigated adult attachment and acculturation frameworks of reported psychosomatic complaints related to perceived discrimination among a sample of Latino/Hispanic university students (N = 160). The model supported by the data suggests that attachment anxiety, acculturation toward the dominant cultural norms, and adherence to…

  7. Attachment styles, personality, and Dutch emigrants ' intercultural adjustment

    NARCIS (Netherlands)

    Bakker, W; Van Oudenhoven, JP; Van Der Zee, KI

    2004-01-01

    The present study examines the relationship of adult attachment styles with personality and psychological and sociocultural adjustment. A sample of 847 first-generation Dutch emigrants filled out measures for attachment styles, the Big Five, and indicators of psychological and sociocultural adjustme

  8. Patterns of Attachment and Emotional Competence in Middle Childhood

    Science.gov (United States)

    Colle, Livia; Del Giudice, Marco

    2011-01-01

    The study investigated the relationship between patterns of attachment and emotional competence at the beginning of middle childhood in a sample of 122 seven-year-olds. A new battery of tasks was developed in order to assess two facets of emotional competence (emotion recognition and knowledge of regulation strategies). Attachment was related to…

  9. Attachment and Symbolic Play in Preschoolers with Autism Spectrum Disorders

    Science.gov (United States)

    Marcu, Inbal; Oppenheim, David; Koren-Karie, Nina; Dolev, Smadar; Yirmiya, Nurit

    2009-01-01

    The association between attachment and symbolic play was examined in a sample of 45 preschool age boys with autism spectrum disorders. Attachment was assessed using the strange situation procedure, and the frequency, duration, diversity and complexity of child-initiated symbolic play was assessed from observations of mother-child interactions…

  10. The Link between Types of Attachment and Childhood Trauma

    Science.gov (United States)

    Erozkan, Atilgan

    2016-01-01

    The study investigated the relationship between childhood trauma and types of attachment and the predictive role of childhood trauma on types of attachment. The sample was composed of 911 (492 female; 419 male) university students at Mugla Sitki Kocman University, in Turkey. Data were collected using the brief screening version of the Childhood…

  11. Attachment Theory in Tourism

    Directory of Open Access Journals (Sweden)

    Maximiliano Korstanje

    2007-01-01

    Full Text Available The following work is intended to a revision on attachment theory. The postulates of the theory of the sure base point that the system of exploration meets in narrow relation the system of conducts of attachment and the figure of the keepers. The conducts that characterize and symbolize the relation of the adult with the environment are carried back to the early age, in the moment in which the child develops the affective capacity. What difference does exist between someone who decides to journey to England and that one that one decides to travel to Mar del Plata? How it is possible to study this topic of on a manner trustworthy? These three questions were key to begin the investigation. Nevertheless, the matter began to find certain limitations linked to the methodology that had to be in use. It is possible to use careless they on the leisure scope, a theory which still demonstrates certain inconsistencies in its own clinical application?

  12. Attachment is a dynamic system

    Directory of Open Access Journals (Sweden)

    Zlatka Cugmas

    2003-04-01

    Full Text Available On the basis of the study of recent scientific literature about the development of attachment, the author answers the following questions: which are the postulates the theory of attachment has about the stability of the patterns of attachment, which level of stability in the patterns of attachment from infancy to adulthood these studies illuminate and which factors significantly influence the (instability of the patterns of attachment in time. The theory of attachment assumes that normal circumstances elicit stability. Changes, however, can be the result of important events influencing the sensitivity of the object of attachment. Agreement has not yet been reached regarding the percentage of stability in the patterns of attachment. There is more agreement regarding attachment in adulthood than that in childhood. The results depend on the size and characteristics of the subjects of the research, the measuring instruments, type of data analysis etc. The author concludes that attachment is a dynamic system influenced by significant changes in life (the cognitive development of the child, external care, parents' divorce, different stressful situations. As the influence of stressful events on the individual person' s quality of attachment is examined, it is necessary to consider also his/her temperamental characteristics, role of other people in their lives, etc.

  13. Mapping and measuring place attachment

    DEFF Research Database (Denmark)

    Brown, Greg; Raymond, Christopher Mark; Corcoran, Jonathan

    2015-01-01

    ) identify how participant socio-demographic and home location attributes influence place attachment, (4) provide some guidance for mapping place attachment in future research. We found large spatial variability in individual place attachment and mapped landscape values using both area and distance......-based measures. The area of place attachment is influenced by occupational roles such as farming or conservation, as well as home location, especially in coastal versus non-coastal contexts. The spatial distribution of mapped landscape values or values home range is related to, but not identical to mapped place...... attachment with just over half of landscape values located outside the area of mapped place attachment. Economic livelihood values, as an indicator of place dependence, and social values, as an indicator of place identity, are more likely to be mapped within the place attachment area. Aggregated place...

  14. Relationships between attachment and marital satisfaction in married couples

    Directory of Open Access Journals (Sweden)

    Patrícia Gallerová

    2016-01-01

    four selfrepot questionnaires. The childhood attachment was measured by Attachment History Paragraphs (Granqvist & Kirkpatrick, 2004, adult attachment was measured by The Experiences in Close Relationships Questionnaire (Brennan, Clark, & Shaver, 1998 and satisfaction in marriage was measuredby two measures: Quality Marriage Index (Norton, 1983 and Kansas Marital Satisfaction Scale (Schumm, Bollman, & Jurich, 1997.The research sample consisted of 78 heterosexual married couple, together 156 people. The average length of marriages is 20.76 years. Participants were instructed to complete the questionnaires independently. The relations between variables were examined by correlation analysis and cluster analysis. People with a secure attachment style and their partners were most satisfied with their marriages. Our study showed relation between dismissive attachment style and low level of marital satisfaction for the individual, and for the partner of the examined one. The results of our study did not suggest any relationship between childhood attachment and marital satisfaction. The results indicate that secure attachment style is related to higher level of relationship satisfaction, in spite of stressful situation or demanding changes which are occurring in marriage. People with insecure attachment style devote a lot of effort to reinforce marital and couple relationship stability during difficult situations in relationship. Connection between marital satisfaction and childhood attachment has not been proven. The reason may be that childhood attachment is not always totally stable and it can be changed by life experience or personal characteristics of the individual. Our research confirmed that attachment is related to satisfaction in marriage. Research of relationship between attachment and factors affecting marriage is very beneficial, because new finding in this topic can help in clinical practice.

  15. Speciation of As(III) and As(V) in water samples by graphite furnace atomic absorption spectrometry after solid phase extraction combined with dispersive liquid-liquid microextraction based on the solidification of floating organic drop.

    Science.gov (United States)

    Shamsipur, Mojtaba; Fattahi, Nazir; Assadi, Yaghoub; Sadeghi, Marzieh; Sharafi, Kiomars

    2014-12-01

    A solid phase extraction (SPE) coupled with dispersive liquid-liquid microextraction based on the solidification of floating organic drop (DLLME-SFO) method, using diethyldithiphosphate (DDTP) as a proper chelating agent, has been developed as an ultra preconcentration technique for the determination of inorganic arsenic in water samples prior to graphite furnace atomic absorption spectrometry (GFAAS). Variables affecting the performance of both steps were thoroughly investigated. Under optimized conditions, 100mL of As(ΙΙΙ) solution was first concentrated using a solid phase sorbent. The extract was collected in 2.0 mL of acetone and 60.0 µL of 1-undecanol was added into the collecting solvent. The mixture was then injected rapidly into 5.0 mL of pure water for further DLLME-SFO. Total inorganic As(III, V) was extracted similarly after reduction of As(V) to As(III) with potassium iodide and sodium thiosulfate and As(V) concentration was calculated by difference. A mixture of Pd(NO3)2 and Mg(NO3)2 was used as a chemical modifier in GFAAS. The analytical characteristics of the method were determined. The calibration graph was linear in the rage of 10-100 ng L(-1) with detection limit of 2.5 ng L(-1). Repeatability (intra-day) and reproducibility (inter-day) of method based on seven replicate measurements of 80 ng L(-1) of As(ΙΙΙ) were 6.8% and 7.5%, respectively. The method was successfully applied to speciation of As(III), As(V) and determination of the total amount of As in water samples and in a certified reference material (NIST RSM 1643e). PMID:25159375

  16. Associations between adult attachment dimensions and attitudes toward pain behaviour

    Science.gov (United States)

    McWilliams, Lachlan A; Murphy, Paul DJ; Bailey, S Jeffrey

    2010-01-01

    BACKGROUND: Despite the important role positive reinforcement of pain behaviour is believed to play in chronic pain, there is a paucity of research regarding factors that influence the provision of such reinforcement. Attachment theory suggests that individuals high in attachment avoidance view the pain behaviour of others in a negative manner and would, therefore, provide little reinforcement of pain behaviour. As an initial step in evaluating this model, relationships between attachment dimensions and attitudes toward pain behaviour were examined. Attachment avoidance was hypothesized to be negatively associated with accepting attitudes toward pain behaviour. METHODS: A sample of undergraduate students (n=160) completed the Relationships Structures Questionnaire, which provides global ratings of adult attachment dimensions (anxiety and avoidance) by assessing attachment across four relationship targets (friend, mother, father and romantic partner). Attitudes regarding the acceptability of pain behaviour were assessed using male and female versions of the Appropriate Pain Behaviour Questionnaire (APBQ). RESULTS: Consistent with the hypothesis, attachment avoidance was negatively correlated with both APBQ-Female and APBQ-Male scores. Multiple regression analyses were used to investigate the relationships between the attachment scales and the APBQ scales while statistically adjusting for sex and testing for interaction effects. The findings revealed complex relationships involving interaction effects that provided further support for the hypothesis. CONCLUSIONS: The findings provided support for the hypothesis that attachment avoidance is associated with less accepting attitudes toward pain behaviour. Additional research regarding the role of attachment and attitudes on responses to pain behaviour is warranted. PMID:21165372

  17. Parental divorce and adult children's attachment representations and marital status.

    Science.gov (United States)

    Crowell, Judith A; Treboux, Dominique; Brockmeyer, Susan

    2009-01-01

    The purpose of this study was to explore adult attachment as a means of understanding the intergenerational transmission of divorce, that is, the propensity for the children of divorce to end their own marriages. Participants included 157 couples assessed 3 months prior to their weddings and 6 years later. Participants completed the Adult Attachment Interview and questionnaires about their relationships, and were videotaped with their partners in a couple interaction task. Results indicated that, in this sample, adult children of divorce were not more likely to divorce within the first 6 years of marriage. However, parental divorce increased the likelihood of having an insecure adult attachment status. For women, age at the time of their parents' divorce was related to adult attachment status, and the influence on attachment representations may be more enduring. Among adult children of divorce, those who were classified as secure in their attachment representations were less likely to divorce in the early years of marriage than insecure participants.

  18. BOSS DR12 combined galaxy sample: The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: On the measurement of growth rate using galaxy correlation functions

    CERN Document Server

    Satpathy, Siddharth; Ho, Shirley; White, Martin; Bahcall, Neta A; Beutler, Florian; Brownstein, Joel R; Chuang, Chia-Hsun; Eisenstein, Daniel J; Grieb, Jan Niklas; Kitaura, Francisco; Olmstead, Matthew D; Percival, Will J; Salazar-Albornoz, Salvador; Sánchez, Ariel G; Seo, Hee-Jong; Thomas, Daniel; Tinker, Jeremy L; Tojeiro, Rita

    2016-01-01

    We present a measurement of the linear growth rate of structure, \\textit{f} from the Sloan Digital Sky Survey III (SDSS III) Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 12 (DR12) using Convolution Lagrangian Perturbation Theory (CLPT) with Gaussian Streaming Redshift-Space Distortions (GSRSD) to model the two point statistics of BOSS galaxies in DR12. The BOSS-DR12 dataset includes 1,198,006 massive galaxies spread over the redshift range $0.2 < z < 0.75$. These galaxy samples are categorized in three redshift bins. Using CLPT-GSRSD in our analysis of the combined sample of the three redshift bins, we report measurements of $f \\sigma_8$ for the three redshift bins. We find $f \\sigma_8 = 0.430 \\pm 0.054$ at $z_{\\rm eff} = 0.38$, $f \\sigma_8 = 0.452 \\pm 0.057$ at $z_{\\rm eff} = 0.51$ and $f \\sigma_8 = 0.457 \\pm 0.052$ at $z_{\\rm eff} = 0.61$. Our results are consistent with the predictions of Planck $\\Lambda$CDM-GR. Our constraints on the growth rates of structure in the Universe at differ...

  19. Fabrication and testing of ceramic UO2 fuel - I-III. Part II, Fabrication of sintered pressed samples UO2 (Final report)

    International Nuclear Information System (INIS)

    Procedure for fabrication of sintered ceramic UO2 pellets was developed in the Department of reactor materials. The tasks described in this report deal with design and construction of laboratory equipment for treatment of ceramic materials, and fabrication of UO2 pellets. The procedure was based on cold pressing of appropriately prepared powder and sintering of the of thus obtained pressed samples

  20. Adult Attachment as Mediator between Recollections of Childhood and Satisfaction with Life

    NARCIS (Netherlands)

    C. Hinnen; R. Sanderman; M.A.G. Sprangers

    2009-01-01

    In accordance with attachment theory, the present study investigates whether internal working models of attachment mediated the association between childhood memories and satisfaction about life in adulthood. A convenient sample of 437 participants completed questionnaires assessing a broad range of

  1. The role of the father as the object of the child's attachment

    Directory of Open Access Journals (Sweden)

    Zlatka Cugmas

    2001-09-01

    Full Text Available The theory of attachment does consider the possibility of the child developing attachment toward other people, e.g., the father or the grandmother, however, it assigns the primary role of the object of attachment to the mother. The main issue of this contribution is to answer the following questions on the basis of studying literature on attachment: can the father be the object of attachment; is he in this role equally important as the mother; can the child's anxious attachment to the mother be replaced with a secure attachment to the father; and does the amount of time the father spends with the child play an important role in the development of the child's attachment toward him. Five criteria developed by Ijzendoorn, Sagi and Lambermon (1992 to test whether caregivers are objects of the child's attachment. I found (i that fathers can be objects of attachment, however, their influence on the child's later social-emotional development differs in quality from the influence of the mother, (ii that a compensation of the child's anxious attachment to the mother with a secure attachment to the father is possible, but not complete, and (iii that the impact of the time the father spends with the child on the child's attachment is more dependent on other factors, such as the mother's occupation. In future research it would be necessary to control the role of the child's sex, the culture he/she lives in and related factors.

  2. Relationship duration moderates associations between attachment and relationship quality: meta-analytic support for the temporal adult romantic attachment model.

    Science.gov (United States)

    Hadden, Benjamin W; Smith, C Veronica; Webster, Gregory D

    2014-02-01

    Although research has examined associations between attachment dimensions and relationship outcomes, theory has ignored how these associations change over time in adult romantic relationships. We proposed the Temporal Adult Romantic Attachment (TARA) model, which predicts that the negative associations between anxious and avoidant attachment on one hand and relationship satisfaction and commitment on the other will be more negative as relationship durations increase. Meta-analyses largely confirmed that negative associations between both insecure attachment dimensions and both relationship outcomes were more negative among longer relationship durations in cross-sectional samples. We also explored gender differences in these associations. The present review not only integrates the literature on adult attachment and romantic relationship satisfaction/commitment but also highlights the importance of relationship duration as a key moderator of the associations among these variables. We discuss the broad implications of these effects and our meta-analytic findings for the TARA model, attachment theory, and romantic relationships.

  3. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey : mock galaxy catalogues for the low-redshift sample

    OpenAIRE

    Manera, Marc; Samushia, Lado; Tojeiro, Rita; Howlett, Cullan; Ross, Ashley J.; Percival, Will J.; Gil-Marín, Hector; Brownstein, Joel R.; Burden, Angela; Montesano, Francesco

    2015-01-01

    MM and WJP acknowledge support from European Research Council, through grant ‘MDEPUGS’. We present 1000 mock galaxy catalogues (mocks) for the analysis of the low-redshift sample (LOWZ; effective redshift z ˜ 0.32) of the Baryon Oscillation Spectroscopic Survey (BOSS) Data Releases 10 and 11. These mocks have been created following the PTHalos method revised to include new developments. The main improvement is the introduction of a redshift dependence in the halo occupation distribution in...

  4. Sulfur geochemistry of hydrothermal waters in Yellowstone National Park, Wyoming, USA. III. An anion-exchange resin technique for sampling and preservation of sulfoxyanions in natural waters

    Directory of Open Access Journals (Sweden)

    Ball James W

    2003-06-01

    Full Text Available A sampling protocol for the retention, extraction, and analysis of sulfoxyanions in hydrothermal waters has been developed in the laboratory and tested at Yellowstone National Park and Green Lake, NY. Initial laboratory testing of the anion-exchange resin Bio-Rad™ AG1-X8 indicated that the resin was well suited for the sampling, preservation, and extraction of sulfate and thiosulfate. Synthetic solutions containing sulfate and thiosulfate were passed through AG1-X8 resin columns and eluted with 1 and 3 M KCl, respectively. Recovery ranged from 89 to 100%. Comparison of results for water samples collected from five pools in Yellowstone National Park between on-site IC analysis (U.S. Geological Survey mobile lab and IC analysis of resin-stored sample at SUNY-Stony Brook indicates 96 to 100% agreement for three pools (Cinder, Cistern, and an unnamed pool near Cistern and 76 and 63% agreement for two pools (Sulfur Dust and Frying Pan. Attempts to extract polythionates from the AG1-X8 resin were made using HCl solutions, but were unsuccessful. Bio-Rad™ AG2-X8, an anion-exchange resin with weaker binding sites than the AG1-X8 resin, is better suited for polythionate extraction. Sulfate and thiosulfate extraction with this resin has been accomplished with KCl solutions of 0.1 and 0.5 M, respectively. Trithionate and tetrathionate can be extracted with 4 M KCl. Higher polythionates can be extracted with 9 M hydrochloric acid. Polythionate concentrations can then be determined directly using ion chromatographic methods, and laboratory results indicate recovery of up to 90% for synthetic polythionate solutions using AG2-X8 resin columns.

  5. THERMOPHILE ENDOSPORES HAVE RESPONSIVE EXOSPORIUM FOR ATTACHMENT

    Energy Technology Data Exchange (ETDEWEB)

    PANESSA-WARREN,B.; TORTORA,G.T.; WARREN,J.; SABATINI,R.

    1999-08-01

    Recently studies examining the colonization of Clostridial pathogens on agar and human tissue culture cells, demonstrated that (C. sporogenes ATCC 3584, C. difficile ATCC 43594 [patient isolate], C. difficile ATCC 9689 [non-clinical], C. clostridioforme [patient isolate]) bacterial spores (endospores) of the genus Clostridia have an outer membrane that becomes responsive at activation and exhibits extensions of the exosporial membrane that facilitate and maintain spore attachment to a nutritive substrate during germination and initial outgrowth of the newly developed bacterial cell. Therefore this attachment phenomenon plays an important role in insuring bacterial colonization of a surface and the initial stages of the infective process. To see if other non-clinical members of this genus also have this ability to attach to a substrate or food-source during spore germination, and how this attachment process in environmental thermophiles compares to the clinical paradigm (in relation to time sequence, exosporial membrane structure, type of attachment structures, composition of the membrane etc...), sediment samples were collected in sterile transport containers at 4 geothermal sites at Yellowstone National Park in Wyoming. Because spore forming bacteria will produce spores when conditions are unfavorable for growth, the samples were sealed and stored at 4 C. After 8 months the samples were screened for the presence of spores by light microscope examination using malachite green/safranin, and traditional endospores were identified in significant quantities from the Terrace Spring site (a 46 C lake with bacterial mats and a rapidly moving run-off channel leading to a traditional hot spring). The highest spore population was found in the top sediment and benthic water of the run-off channel, pH 8.1.

  6. Anxious attachment as a determinant of adult psychopathology.

    Science.gov (United States)

    West, M; Rose, M S; Sheldon, A

    1993-07-01

    Traditionally, an excess of interpersonal dependency has been used to characterize disturbed interpersonal relationships in adults. This approach stands in sharp contrast to that of attachment theorists who conceptualize attachment as functionally distinct from dependency. Attachment theory focuses on anxious attachment in the definition and dynamics of disturbed adult interpersonal relationships. The purpose of this study was to examine the relevance of anxious attachment to the differentiation of psychiatric outpatients from nonpatients. Empirically, three scales (feared loss of the attachment figure, proximity seeking, and separation protest) measure the components of anxious attachment as defined by Bowlby. The scales were administered to two research samples. Sample 1 was composed of 136 respondents to a survey within the Calgary community. Sample 2 consisted of 110 psychiatric outpatients drawn from the psychotherapy clinic of the Calgary General Hospital. The results indicate that the three components of anxious attachment offer a clinically relevant system for differentiating between psychiatric outpatients and nonpatients. Of these three components, feared loss has the predominant effect. The implications of this finding for the delineation of disturbed interpersonal relationships in adults is discussed.

  7. The Redshift Evolution of the High-Mass End of the Red Sequence Luminosity Function from the SDSS-III/BOSS CMASS Sample

    CERN Document Server

    Montero-Dorta, Antonio D; Brownstein, Joel R; Swanson, Molly; Dawson, Kyle; Prada, Francisco; Eisenstein, Daniel; Maraston, Claudia; Thomas, Daniel; Comparat, Johan; Chuang, Chia-Hsun; McBride, Cameron K; Favole, Ginevra; Guo, Hong; Rodriguez, Sergio; Schneider, Donald P

    2014-01-01

    We present the redshift evolution of the high-mass end of the ^{0.55}i-band Red Sequence Luminosity Function (RS LF) within the redshift range 0.52sample, which comprises ~ 600,000 galaxies. We have developed an analytical method based on an unbinned maximum likelihood approach for deconvolving the observed CMASS distribution from photometric errors and accounting for selection effects. This procedure requires modeling the covariance matrix for the i-band magnitude, g-r color and r-i color using Stripe 82 multi-epoch data. The error-deconvolved intrinsic RS distribution is consistent with a single point in the color-color plane, which implies that the great majority of the observed scatter is due to photometric errors. We estimate that RS completeness is ~0.80-0.85 at z\\geq0.52 in the CMASS sample, dropping drastically below that redshift. Approximately 37% of all objects in the CMASS sample belong intrinsically to the blue cloud. Within the redshift and absolu...

  8. Parenting and preschooler attachment among low-income urban African American families.

    Science.gov (United States)

    Barnett, D; Kidwell, S L; Leung, K H

    1998-12-01

    This study examined the parental correlates of child attachment in a preschool-aged, economically disadvantaged, urban, African American sample. Sixty-nine 4- to 5-year-olds and their primary caregivers participated in the Strange Situation assessment procedure. Based on Cassidy and Marvin's classification system for preschoolers, 61% of the children were classified as securely attached, with girls being significantly more likely to be securely attached than boys (74% versus 45%). The majority of the insecure attachments were of the avoidant variety. Consistent with attachment theory, parents of securely attached children were rated as significantly more warm and accepting and less controlling with their children than were parents of insecurely attached preschoolers. Relative to parents of securely attached preschoolers, parents of children judged to be insecurely attached reported being more likely to use corporal punishment and less likely to use verbal reminders when their children misbehaved. Parenting was associated with attachment over and above the effects of child sex. PMID:9914645

  9. Association of APOE polymorphism with chronic kidney disease in a nationally representative sample: a Third National Health and Nutrition Examination Survey (NHANES III Genetic Study

    Directory of Open Access Journals (Sweden)

    Berthier-Schaad Yvette

    2009-10-01

    Full Text Available Abstract Background Apolipoprotein E polymorphisms (APOE have been associated with lowered glomerular filtration rate (GFR and chronic kidney disease (CKD with e2 allele conferring risk and e4 providing protection. However, few data are available in non-European ethnic groups or in a population-based cohort. Methods The authors analyzed 5,583 individuals from the Third National Health and Nutrition Examination Survey (NHANES III to determine association with estimated GFR by the Modification of Diet in Renal Disease (MDRD equation and low-GFR cases. Low-GFR cases were defined as GFR 2; additionally, GFR was analyzed continuously. Results In univariate analysis, the e4 allele was negatively associated with low-GFR cases in non-Hispanic whites, odds ratio (OR: 0.76, 95% confidence interval (CI: 0.60, 0.97. In whites, there was a significant association between increasing APOE score (indicating greater number of e2 alleles and higher prevalence of low-GFR cases (OR: 1.21, 95%CI: 1.01, 1.45. Analysis of continuous GFR in whites found the e4 allele was associated with higher levels of continuous GFR (β-coefficient: 2.57 ml/min/1.73 m2, 95%CI: 0.005, 5.14; in non-Hispanic blacks the e2 allele was associated with lower levels of continuous GFR (β-coefficient: -3.73 ml/min/1.73 m2, 95%CI: -6.61, -0.84. APOE e2 and e4 alleles were rare and not associated with low-GFR cases or continuous GFR in Mexican Americans. Conclusion In conclusion, the authors observed a weak association between the APOE e4 allele and low-GFR cases and continuous GFR in non-Hispanic whites, and the APOE e2 allele and continuous GFR in non-Hispanic blacks, but found no association with either measure of kidney function in Mexican Americans. Larger studies including multiethnic groups are needed to determine the significance of this association.

  10. A Rorschach investigation of attachment and anxiety in antisocial personality disorder.

    Science.gov (United States)

    Gacono, C B; Meloy, J R

    1991-09-01

    We investigated the constructs of anxiety and attachment in a group of 42 offenders who met the DSM-III-R criteria for antisocial personality disorder. Each antisocial subject's level of psychopathy was assessed with the Hare Psychopathy Checklist (PCL). Three Rorschach variables related to attachment, anxiety, and coping were compared between subjects scoring greater than or equal to 30 (N = 21) on the PCL and subjects scoring less than 30 (N = 21). Comparison Rorschach variables are also presented from a sample of 60 antisocial personality-disordered offenders. Moderate psychopaths (PCL score, less than 30) produced texture and diffuse shading responses at a significantly greater frequency than severe, or primary, psychopaths (PCL score, greater than or equal to 30). There was no significant difference in the two groups' propensity for producing vista responses. Although there were no significant differences between the coping index scores, the trend suggests less conflictual functioning in the severe psychopaths. A virtual absence of texture responses in the severe psychopaths, and a significantly greater frequency of diffuse shading responses in the moderate psychopaths, add construct validity to the lack of attachment in psychopaths and the role of anxiety in differentiating secondary from primary psychopathy. We view the presence of vista responses in this population as a measure of a failed grandiose self-structure, and note that it often occurs in the records of moderate psychopaths who also present achromatic color responses.

  11. Attachment theory: Old and new approach

    OpenAIRE

    Polovina Nada

    2005-01-01

    The article is an attempt to present holistically the key concepts of attachment theory rediscovered for its potentials. The presented concepts include: narrow definition of attachment, behavioral control system of attachment, attachment working model and patterns of attachment. The concepts are presented in the context of child attachment theory and adult attachment theory, in addition to description of the development of attachment. Concepts, as well as developmental processes are presented...

  12. Attachment theory and therapeutic relationships

    OpenAIRE

    Boysan, Zehra

    2015-01-01

    The aims of this study were to examine the associations between current self-reported attachment styles, retrospective reports of childhood experiences, and the development of the therapeutic alliance. It was hypothesised that anxious and avoidant attachment would be correlated with negative childhood experiences and that both attachment anxiety and avoidance would be inversely correlated with the therapeutic alliance. The third hypothesis stated that negative childhood recollections would co...

  13. Adult attachment and psychosocial functioning

    OpenAIRE

    Pielage, Suzanne Brenda

    2006-01-01

    In the trilogy Attachment, Separation and Loss (1969, 1973, 1980), Bowlby theorized that early experiences with caregivers affect the quality of individuals’ later (romantic) relationships and, consequently, their mental health. The current thesis set out to examine the relationships between adult attachment and psychosocial functioning, predominately in the realm of close relationships. In the first part of the thesis, the focus lay on the assessment of the adult attachment construct. In Cha...

  14. Carbon-Enhanced Metal-Poor Stars. III. Main-Sequence Turn-Off Stars from the SDSS/SEGUE Sample

    CERN Document Server

    Aoki, Wako; Sivarani, Thirupathi; Marsteller, Brian; Lee, Young Sun; Honda, Satoshi; Norris, John E; Ryan, Sean G; Carollo, Daniela

    2008-01-01

    The chemical compositions of seven Carbon-Enhanced Metal-Poor (CEMP) turn-off stars are determined from high-resolution spectroscopy. Five of them are selected from the SDSS/SEGUE sample of metal-poor stars. The effective temperatures of these objects are all higher than 6000 K, while their metallicities, parametrized by [Fe/H], are all below -2. Six of our program objects exhibit high abundance ratios of barium ([Ba/H]> +1), suggesting large contributions of the products of former AGB companions via mass transfer across binary systems. Combining our results with previous studies provides a total of 20 CEMP main-sequence turn-off stars for which the abundances of carbon and at least some neutron-capture elements are determined. Inspection of the [C/H] ratios for this sample of CEMP turn-off stars show that they are generally higher than those of CEMP giants; their dispersion in this ratio is also smaller. We take these results to indicate that the carbon-enhanced material provided from the companion AGB star ...

  15. The FMOS-COSMOS survey of star-forming galaxies at z~1.6 III. Survey design, performance, and sample characteristics

    CERN Document Server

    Silverman, J D; Arimoto, N; Renzini, A; Rodighiero, G; Daddi, E; Sanders, D; Kartaltepe, J; Zahid, J; Nagao, T; Kewley, L J; Lilly, S J; Sugiyama, N; Capak, P; Carollo, C M; Chu, J; Hasinger, G; Ilbert, O; Kajisawa, M; Koekemoer, A M; Kovac, K; Fevre, O Le; Masters, D; McCracken, H J; Onodera, M; Scoville, N; Strazzullo, V; Taniguchi, Y

    2014-01-01

    We present a spectroscopic survey of galaxies in the COSMOS field using the Fiber Multi-Object Spectrograph (FMOS), a near-infrared instrument on the Subaru Telescope. Our survey is specifically designed to detect the Halpha emission line that falls within the H-band (1.6-1.8 micron) spectroscopic window from star-forming galaxies with M_stellar>10^10 Msolar and 1.4 < z < 1.7. With the high multiplex capabilities of FMOS, it is now feasible to construct samples of over one thousand galaxies having spectroscopic redshifts at epochs that were previously challenging. The high-resolution mode (R~2600) is implemented to effectively separate Halpha and [NII] emission lines thus enabling studies of gas-phase metallicity and photoionization conditions of the interstellar medium. The broad goals of our program are concerned with how star formation depends on stellar mass and environment, both recognized as drivers of galaxy evolution at lower redshifts. In addition to the main galaxy sample, our target selection...

  16. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: tomographic BAO analysis of DR12 combined sample in configuration space

    CERN Document Server

    Wang, Yuting; Chuang, Chia-Hsun; Ross, Ashley J; Percival, Will J; Gil-Marín, Héctor; Cuesta, Antonio J; Kitaura, Francisco-Shu; Rodriguez-Torres, Sergio; Brownstein, Joel R; Eisenstein, Daniel J; Ho, Shirley; Kneib, Jean-Paul; Olmstead, Matt; Prada, Francisco; Rossi, Graziano; Sánchez, Ariel G; Salazar-Albornoz, Salvador; Thomas, Daniel; Tinker, Jeremy; Tojeiro, Rita; Vargas-Magaña, Mariana; Zhu, Fangzhou

    2016-01-01

    We perform a tomographic baryon acoustic oscillations analysis using the two-point galaxy correlation function measured from the combined sample of BOSS DR12, which covers the redshift range of $0.2sample into multiple overlapping redshift slices to extract the redshift information of galaxy clustering, we obtain a measurement of $D_A(z)/r_d$ and $H(z)r_d$ at nine effective redshifts with the full covariance matrix calibrated using MultiDark-Patchy mock catalogues. Using the reconstructed galaxy catalogues, we obtain the precision of $1.3\\%-2.3\\%$ for $D_A(z)/r_d$ and $2.5\\%-5.7\\%$ for $H(z)r_d$. To quantify the gain from the tomographic information, we compare the constraints on the cosmological parameters using our 9-bin BAO measurements, the consensus 3-bin BAO and RSD measurements at three effective redshifts in \\citet{Alam2016}, and the non-tomographic (1-bin) BAO measurement at a single effective redshift. Comparing the 9-bin with 1-bin constraint result, it can improve the...

  17. Porcine dentin sialoprotein glycosylation and glycosaminoglycan attachments

    Directory of Open Access Journals (Sweden)

    Yamakoshi Fumiko

    2011-02-01

    Full Text Available Abstract Background Dentin sialophosphoprotein (Dspp is a multidomain, secreted protein that is critical for the formation of tooth dentin. Mutations in DSPP cause inherited dentin defects categorized as dentin dysplasia type II and dentinogenesis imperfecta type II and type III. Dentin sialoprotein (Dsp, the N-terminal domain of dentin sialophosphoprotein (Dspp, is a highly glycosylated proteoglycan, but little is known about the number, character, and attachment sites of its carbohydrate moieties. Results To identify its carbohydrate attachment sites we isolated Dsp from developing porcine molars and digested it with endoproteinase Glu-C or pronase, fractionated the digestion products, identified fractions containing glycosylated peptides using a phenol sulfuric acid assay, and characterized the glycopeptides by N-terminal sequencing, amino acid analyses, or LC/MSMS. To determine the average number of sialic acid attachments per N-glycosylation, we digested Dsp with glycopeptidase A, labeled the released N-glycosylations with 2-aminobenzoic acid, and quantified the moles of released glycosylations by comparison to labeled standards of known concentration. Sialic acid was released by sialidase digestion and quantified by measuring β-NADH reduction of pyruvic acid, which was generated stoichiometrically from sialic acid by aldolase. To determine its forms, sialic acid released by sialidase digestion was labeled with 1,2-diamino-4,5-methyleneoxybenzene (DMB and compared to a DMB-labeled sialic acid reference panel by RP-HPLC. To determine the composition of Dsp glycosaminoglycan (GAG attachments, we digested Dsp with chondroitinase ABC and compared the chromotagraphic profiles of the released disaccharides to commercial standards. N-glycosylations were identified at Asn37, Asn77, Asn136, Asn155, Asn161, and Asn176. Dsp averages one sialic acid per N-glycosylation, which is always in the form of N-acetylneuraminic acid. O-glycosylations were

  18. Attachment disorganization in different clinical groups: What underpins unresolved attachment?

    Directory of Open Access Journals (Sweden)

    Juen Florian

    2013-01-01

    Full Text Available This paper summarizes findings and clinical implications of research on attachment disorganization in diverse clinical groups. Disorganized/unresolved attachment is overrepresented in these groups compared to healthy control participants, but disorder specific characteristics of this attachment pattern are still poorly understood. The focus of this study was to explore defensive processes in participants whose narratives were classified as disorganized/unresolved using the Adult Attachment Projective Picture System (AAP. Besides the predominance of disorganized attachment, clinical participants demonstrated more “segregated system material” especially in stories representing aloneness and more “Personal Experience material” compared to healthy individuals. Within the disorganized/ unresolved clinical individuals, BPD and PTSD patients showed the highest proportion of attachment disorganization and were less able to use other attachment-related defenses to maintain organized. Furthermore, PTSD patients were emotionally overwhelmed by the projective attachment scenes compared to the other clinical groups as indexed by an incapacity to complete sections of the AAP. BPD and addicted patients were characterized by a high degree of self-other boundary confusion. Depressive and schizophrenic patients showed a high overall defensive intensity to remain organized.

  19. Fermilab III

    International Nuclear Information System (INIS)

    The total ongoing plans for Fermilab are wrapped up in the Fermilab III scheme, centrepiece of which is the proposal for a new Main Injector. The Laboratory has been awarded a $200,000 Illinois grant which will be used to initiate environmental assessment and engineering design of the Main Injector, while a state review panel recommended that the project should also benefit from $2 million of funding

  20. Star Formation Properties in Barred Galaxies(SFB). III. Statistical Study of Bar-driven Secular Evolution using a sample of nearby barred spirals

    CERN Document Server

    Zhou, Zhi-Min; Wu, Hong

    2014-01-01

    Stellar bars are important internal drivers of secular evolution in disk galaxies. Using a sample of nearby spiral galaxies with weak and strong bars, we explore the relationships between the star formation feature and stellar bars in galaxies. We find that galaxies with weak bars tend to be coincide with low concentrical star formation activity, while those with strong bars show a large scatter in the distribution of star formation activity. We find enhanced star formation activity in bulges towards stronger bars, although not predominantly, consistent with previous studies. Our results suggest that different stages of the secular process and many other factors may contribute to the complexity of the secular evolution. In addition, barred galaxies with intense star formation in bars tend to have active star formation in their bulges and disks, and bulges have higher star formation densities than bars and disks, indicating the evolutionary effects of bars. We then derived a possible criterion to quantify the ...

  1. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Cosmological implications of the Fourier space wedges of the final sample

    CERN Document Server

    Grieb, Jan Niklas; Salazar-Albornoz, Salvador; Scoccimarro, Román; Crocce, Martín; Vecchia, Claudio Dalla; Montesano, Francesco; Gil-Marín, Héctor; Ross, Ashley J; Beutler, Florian; Rodríguez-Torres, Sergio; Chuang, Chia-Hsun; Prada, Francisco; Kitaura, Francisco-Shu; Cuesta, Antonio J; Eisenstein, Daniel J; Percival, Will J; Vargas-Magana, Mariana; Tinker, Jeremy L; Tojeiro, Rita; Brownstein, Joel R; Maraston, Claudia; Nichol, Robert C; Olmstead, Matthew D; Samushia, Lado; Seo, Hee-Jong; Streblyanska, Alina; Zhao, Gong-bo

    2016-01-01

    We extract cosmological information from the anisotropic power spectrum measurements from the recently completed Baryon Oscillation Spectroscopic Survey (BOSS), extending the concept of clustering wedges to Fourier space. Making use of new FFT-based estimators, we measure the power spectrum clustering wedges of the BOSS sample by filtering out the information of Legendre multipoles l > 4. Our modelling of these measurements is based on novel approaches to describe non-linear evolution, bias, and redshift-space distortions, which we test using synthetic catalogues based on large-volume N-body simulations. We are able to include smaller scales than in previous analyses, resulting in tighter cosmological constraints. Using three overlapping redshift bins, we measure the angular diameter distance, the Hubble parameter, and the cosmic growth rate, and explore the cosmological implications of our full shape clustering measurements in combination with CMB and SN Ia data. Assuming a {\\Lambda}CDM cosmology, we constra...

  2. Predicting Preschoolers' Attachment Security from Parenting Behaviours, Parents' Attachment Relationships and Their Use of Social Support

    Science.gov (United States)

    Coyl, Diana D.; Newland, Lisa A.; Freeman, Harry

    2010-01-01

    Associations between preschoolers' attachment security, parenting behaviours (i.e. parent-child involvement, parenting consistency and co-parenting consistency) and parenting context (i.e. parents' internal working models (IWMs) and use of social support) were examined in a sample of 235 culturally diverse families. The authors predicted that…

  3. Protein Attachment on Nanodiamonds.

    Science.gov (United States)

    Lin, Chung-Lun; Lin, Cheng-Huang; Chang, Huan-Cheng; Su, Meng-Chih

    2015-07-16

    A recent advance in nanotechnology is the scale-up production of small and nonaggregated diamond nanoparticles suitable for biological applications. Using detonation nanodiamonds (NDs) with an average diameter of ∼4 nm as the adsorbents, we have studied the static attachment of three proteins (myoglobin, bovine serum albumin, and insulin) onto the nanoparticles by optical spectroscopy, mass spectrometry, and dynamic light scattering, and electrophoretic zeta potential measurements. Results show that the protein surface coverage is predominantly determined by the competition between protein-protein and protein-ND interactions, giving each protein a unique and characteristic structural configuration in its own complex. Specifically, both myoglobin and bovine serum albumin show a Langmuir-type adsorption behavior, forming 1:1 complexes at saturation, whereas insulin folds into a tightly bound multimer before adsorption. The markedly different adsorption patterns appear to be independent of the protein concentration and are closely related to the affinity of the individual proteins for the NDs. The present study provides a fundamental understanding for the use of NDs as a platform for nanomedical drug delivery. PMID:25815400

  4. Star formation properties in barred galaxies. III. Statistical study of bar-driven secular evolution using a sample of nearby barred spirals

    Energy Technology Data Exchange (ETDEWEB)

    Zhou, Zhi-Min; Wu, Hong [Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China); Cao, Chen, E-mail: zmzhou@bao.ac.cn, E-mail: hwu@bao.ac.cn, E-mail: caochen@sdu.edu.cn [School of Space Science and Physics, Shandong University at Weihai, Weihai, Shandong 264209 (China)

    2015-01-01

    Stellar bars are important internal drivers of secular evolution in disk galaxies. Using a sample of nearby spiral galaxies with weak and strong bars, we explore the relationships between the star formation feature and stellar bars in galaxies. We find that galaxies with weak bars tend coincide with low concentrical star formation activity, while those with strong bars show a large scatter in the distribution of star formation activity. We find enhanced star formation activity in bulges toward stronger bars, although not predominantly, consistent with previous studies. Our results suggest that different stages of the secular process and many other factors may contribute to the complexity of the secular evolution. In addition, barred galaxies with intense star formation in bars tend to have active star formation in their bulges and disks, and bulges have higher star formation densities than bars and disks, indicating the evolutionary effects of bars. We then derived a possible criterion to quantify the different stages of the bar-driven physical process, while future work is needed because of the uncertainties.

  5. The extended ROSAT-ESO Flux Limited X-ray Galaxy Cluster Survey (REFLEX II) III. Construction of the first flux-limited supercluster sample

    CERN Document Server

    Chon, Gayoung; Nowak, Nina

    2012-01-01

    We present the first supercluster catalogue constructed with the extended ROSAT-ESO Flux Limited X-ray Galaxy Cluster survey (REFLEX II) data, which comprises 919 X-ray selected galaxy clusters. Based on this cluster catalogue we construct a supercluster catalogue using a friends-of-friends algorithm with a linking length depending on the local cluster density. The resulting catalogue comprises 164 superclusters at redshift z<=0.4. We study the properties of different catalogues such as the distributions of the redshift, extent and multiplicity by varying the choice of parameters. In addition to the main catalogue we compile a large volume-limited cluster sample to investigate the statistics of the superclusters. We also compare the X-ray luminosity function for the clusters in superclusters with that for the field clusters with the flux- and volume-limited catalogues. The results mildly support the theoretical suggestion of a top-heavy X-ray luminosity function of galaxy clusters in regions of high cluste...

  6. EVN observations of 6.7 GHz methanol maser polarization in massive star-forming regions III. The flux-limited sample

    CERN Document Server

    Surcis, G; van Langevelde, H J; Kramer, B Hutawarakorn; Bartkiewicz, A; Blasi, M G

    2015-01-01

    Theoretical simulations and observations at different angular resolutions have shown that magnetic fields have a central role in massive star formation. Like in low-mass star formation, the magnetic field in massive young stellar objects can either be oriented along the outflow axis or randomly. Measuring the magnetic field at milliarcsecond resolution (10-100 au) around a substantial number of massive young stellar objects permits determining with a high statistical significance whether the direction of the magnetic field is correlated with the orientation of the outflow axis or not. In late 2012, we started a large VLBI campaign with the European VLBI Network to measure the linearly and circularly polarized emission of 6.7 GHz methanol masers around a sample of massive star-forming regions. This paper focuses on the first seven observed sources, G24.78+0.08, G25.65+1.05, G29.86-0.04, G35.03+0.35, G37.43+1.51, G174.20-0.08, and G213.70-12.6. For all these sources, molecular outflows have been detected in the...

  7. Diameters in preferential attachment models

    NARCIS (Netherlands)

    Dommers, S.; Van der Hofstad, R.; Hooghiemstra, G.

    2010-01-01

    In this paper, we investigate the diameter in preferential attachment (PA-) models, thus quantifying the statement that these models are small worlds. The models studied here are such that edges are attached to older vertices proportional to the degree plus a constant, i.e., we consider affine PA-mo

  8. Association between attachment and schizotypy

    OpenAIRE

    Dunne, Colm

    2011-01-01

    Background: The human genome project has affirmed the importance of non-genetic factors in human development. Attachment style is considered to be a diathesis for psychopathology and an important determinant regarding interpersonal functioning. Epidemiological research has indicated that there is significant aetiological continuity between symptoms of schizotypy and clinical symptoms of schizophrenia. Limited research has investigated the association between attachment and schi...

  9. Attachment, caring and prosocial behavior

    NARCIS (Netherlands)

    Erez, Ayelet

    2007-01-01

    The thesis focuses on 5 studies examining the role of adult attachment in volunteering by defining volunteerism as a form of caregiving. By that we suggest an effect of one behavioral system, attachment, on another, caring or prosocial behaviors in individual or group settings. Studies 1 and 2 ex

  10. Adult attachment as mediator between recollections of childhood and satisfaction with life.

    Science.gov (United States)

    Hinnen, Chris; Sanderman, Robbert; Sprangers, Mirjam A G

    2009-01-01

    In accordance with attachment theory, the present study investigates whether internal working models of attachment mediated the association between childhood memories and satisfaction about life in adulthood. A convenient sample of 437 participants completed questionnaires assessing a broad range of childhood memories, working models of attachment and life satisfaction. After controlling for demographics, relational status and living condition, Baron and Kenny's mediation criteria were met for the association between memories about childhood, adult attachment and life satisfaction. That is, family warmth and harmony and parental support were associated with attachment security while parental rejection and adverse childhood events (e.g., abuse, parental psychopathology) were associated with an insecure attachment style. More securely attached individuals were in turn more satisfied about their current life than insecurely attached individuals. Sobel test confirmed these findings. These finding are in accordance with attachment theory and highlight the importance of this theory for understanding how early childhood experiences may impact adult life. PMID:19165809

  11. Adult attachment as mediator between recollections of childhood and satisfaction with life.

    Science.gov (United States)

    Hinnen, Chris; Sanderman, Robbert; Sprangers, Mirjam A G

    2009-01-01

    In accordance with attachment theory, the present study investigates whether internal working models of attachment mediated the association between childhood memories and satisfaction about life in adulthood. A convenient sample of 437 participants completed questionnaires assessing a broad range of childhood memories, working models of attachment and life satisfaction. After controlling for demographics, relational status and living condition, Baron and Kenny's mediation criteria were met for the association between memories about childhood, adult attachment and life satisfaction. That is, family warmth and harmony and parental support were associated with attachment security while parental rejection and adverse childhood events (e.g., abuse, parental psychopathology) were associated with an insecure attachment style. More securely attached individuals were in turn more satisfied about their current life than insecurely attached individuals. Sobel test confirmed these findings. These finding are in accordance with attachment theory and highlight the importance of this theory for understanding how early childhood experiences may impact adult life.

  12. Perinatal Depression and Patterns of Attachment: A Critical Risk Factor?

    Directory of Open Access Journals (Sweden)

    Valentina Meuti

    2015-01-01

    Full Text Available Background. This study aims to verify if the presence and severity of perinatal depression are related to any particular pattern of attachment. Methods. The study started with a screening of a sample of 453 women in their third trimester of pregnancy, who were administered a survey data form, the Edinburgh Postnatal Depression Scale (EPDS and the Experience in Close Relationship (ECR. A clinical group of subjects with perinatal depression (PND, 89 subjects was selected and compared with a control group (C, regarding psychopathological variables and attachment patterns. Results. The ECR showed a prevalence of “Fearful-Avoidant” attachment style in PND group (29.2% versus 1.1%, p<0.001; additionally, the EPDS average score increases with the increasing of ECR dimensions (Avoidance and Anxiety. Conclusion. The severity of depression increases proportionally to attachment disorganization; therefore, we consider attachment as both an important risk factor as well as a focus for early psychotherapeutic intervention.

  13. The Relation of Attachment Security to Adolescents' Paternal and Peer Relationships, Depression, and Externalizing Behavior

    Science.gov (United States)

    Allen, Joseph P.; Porter, Maryfrances; McFarland, Christy; McElhaney, Kathleen Boykin; Marsh, Penny

    2007-01-01

    The relation of attachment security to multiple domains of psychosocial functioning was examined in a community sample of 167 early adolescents. Security of attachment organization, assessed using the Adult Attachment Interview, was linked to success in establishing autonomy while maintaining a sense of relatedness both with fathers and with…

  14. Role Balance and Depression among College Students: The Moderating Influence of Adult Attachment Orientations

    Science.gov (United States)

    Lopez, Frederick G.; Fons-Scheyd, Alia

    2008-01-01

    This study examined interrelationships among role balance perceptions, adult attachment orientations, and depression within an ethnically diverse, mixed-gender sample of college students. Adult attachment orientations--and particularly attachment avoidance--significantly interacted with students' role balance levels to predict their depression…

  15. Everything You Want To Know about Attachment.

    Science.gov (United States)

    Honig, Alice Sterling

    This paper discusses infant attachment, which it defines as a long-lasting emotional bond revealed when a child under stress seeks out and tries to stay close to a specific figure. The paper addresses: (1) What is attachment? Who are the pioneers in attachment theory?; (2) How do we notice attachment in action?; (3) Is attachment the only…

  16. Development of demographic norms for four new WAIS-III/WMS-III indexes.

    Science.gov (United States)

    Lange, Rael T; Chelune, Gordon J; Taylor, Michael J; Woodward, Todd S; Heaton, Robert K

    2006-06-01

    Following the publication of the third edition Wechsler scales (i.e., WAIS-III and WMS-III), demographically corrected norms were made available in the form of a computerized scoring program (i.e., WAIS-III/WMS-III/WIAT-II Scoring Assistant). These norms correct for age, gender, ethnicity, and education. Since then, four new indexes have been developed: the WAIS-III General Ability Index, the WMS-III Delayed Memory Index, and the two alternate Immediate and Delayed Memory Indexes. The purpose of this study was to develop demographically corrected norms for the four new indexes using the standardization sample and education oversample from the WAIS-III and WMS-III. These norms were developed using the same methodology as the demographically corrected norms made available in the WAIS-III/WMS-III/WIAT-II Scoring Assistant.

  17. Attachment at work and performance.

    Science.gov (United States)

    Neustadt, Elizabeth A; Chamorro-Premuzic, Tomas; Furnham, Adrian

    2011-09-01

    This paper examines the relations between self-reported attachment orientation at work and personality, self-esteem, trait emotional intelligence (aka emotional self-efficacy), and independently assessed career potential and job performance. Self-report data were collected from 211 managers in an international business in the hospitality industry; independent assessments of these managers' job performance and career potential were separately obtained from the organization. A self-report measure of romantic attachment was adapted for application in the work context; a two-factor solution was found for this measure. Secure/autonomous attachment orientation at work was positively related to self-esteem, trait emotional intelligence, extraversion, agreeableness, and conscientiousness, and also to job performance. Not only was secure/autonomous attachment orientation at work statistically predictive of job performance, but the new measure also made a distinct contribution, beyond conscientiousness, to this prediction. PMID:21838647

  18. Social attachments and traumatic stress

    Directory of Open Access Journals (Sweden)

    Richard A. Bryant

    2016-03-01

    Full Text Available The extent to which we engage with our social world has been central to our survival as a species and, accordingly, is relevant to how we cope with trauma and adversity. This review summarises current knowledge about the importance of social connections from an evolutionary perspective, as well as integrating this with a discussion of prevailing attachment theories. Experimental research supporting the potential benefit of attachments for managing adversity are presented, along with a review of how these benefits are moderated by individual differences in attachment style. The potential impact of trauma on attachment systems, and the manner in which this can compound trauma stress is discussed. Finally, a broader overview of social network analysis is introduced and it is proposed that a more sociocentric framework of trauma response would promote a fuller understanding of how social processes moderate trauma response.

  19. Electron attachment to fluorocarbon radicals

    Science.gov (United States)

    Shuman, Nicholas

    2014-10-01

    Most plasma environments contain populations of short-lived species such as radicals, the chemistry of which can have significant effects on the overall chemistry of the system. However, few experimental measurements of the kinetics of electron attachment to radicals exist due to the inherent difficulties of working with transient species. Calculations from first principles have been attempted, but are arduous and, because electron attachment is so sensitive to the specifics of the potential surface, their accuracy has not been established. Electron attachment to small fluorocarbon radicals is particularly important, as the data are needed for predictive modeling of plasma etching of semiconductor materials, a key process in the industrial fabrication of microelectronics. We have recently developed a novel flowing afterglow technique to measure several types of otherwise difficult to study plasma processes, including thermal electron attachment to radicals. Variable Electron and Neutral Density Attachment Mass Spectrometry (VENDAMS) exploits dissociative electron attachment in a weakly ionized plasma as a radical source. Here, we apply VENDAMS to a series of halofluorocarbon precursors in order to measure the kinetics of thermal electron attachment to fluorocarbon radicals. Results are presented for CF2, CF3, C2F5,C2F3,1-C3F7, 2-C3F7, and C3F5 from 300 K to 900 K. Both the magnitude and the temperature dependences of rate coefficients as well as product branching between associative and dissociative attachment are highly system specific; however, thermal attachment to all species is inefficient, never exceeding 5% of the collision rate. The data are analyzed using a recently developed kinetic modeling approach, which uses extended Vogt-Wannier theory as a starting point, accounts for dynamic effects such as coupling between the electron and nuclear motions through empirically validated functional forms, and finally uses statistical theory to determine the fate of

  20. Attachment Narratives in Refugee Children

    DEFF Research Database (Denmark)

    De Haene, L.; Dalgård, Nina Thorup; Montgomery, E.;

    2013-01-01

    J Trauma Stress. 2013 Jun;26(3):413-7. doi: 10.1002/jts.21820. Attachment narratives in refugee children: interrater reliability and qualitative analysis in pilot findings from a two-site study.......J Trauma Stress. 2013 Jun;26(3):413-7. doi: 10.1002/jts.21820. Attachment narratives in refugee children: interrater reliability and qualitative analysis in pilot findings from a two-site study....

  1. Attachment to pets and interpersonal relationships: Can a four-legged friend replace a two-legged one?

    Directory of Open Access Journals (Sweden)

    Iris Smolkovic

    2012-05-01

    Full Text Available The goal of the present research is to investigate pet attachment and measure the connection between owner-pet attachment and interpersonal attachment characteristics of dog owners and cat owners, social support and loneliness. From a sample of 268 dog and 97 cat owners, significant differences on pet attachment appeared between pet owners’ gender, owners living location, kinds of pets and the length of ownership. The pedigree of pets influenced owner-pet attachment levels.

  2. Childhood sexual abuse and attachment: An intergenerational perspective

    OpenAIRE

    Kwako, Laura E.; Noll, Jennie G.; Putnam, Frank W.; Trickett, Penelope K.

    2010-01-01

    Childhood sexual abuse (CSA) is a recognized risk factor for various negative outcomes in adult survivors and their offspring. We used the Dynamic-Maturational Model of attachment theory as a framework for exploring the impact of maternal CSA on children’s attachment relationships in the context of a longitudinal sample of adult survivors of CSA and non-abused comparison mothers and their children. Results indicated that children of CSA survivors were more likely to have extreme strategies of...

  3. Attachment and Parenting in Adult Patients with Anxiety Disorders

    OpenAIRE

    Picardi, Angelo; Caroppo, Emanuele; Fabi, Elisa; Proietti, Serena; Gennaro, Giancarlo Di; Meldolesi, Giulio Nicolò; Martinotti, Giovanni

    2013-01-01

    Background: The literature suggests that dysfunctional parenting and insecure attachment may increase risk of anxiety-related psychopathology. This study aimed at testing the association between anxiety disorders, attachment insecurity and dysfunctional parenting while controlling for factors usually not controlled for in previous studies, such as gender, age, and being ill. Methods: A sample of 32 non-psychotic inpatients with SCID-I diagnosis of an anxiety disorder, either alone or in comor...

  4. Authenticity and place attachment of major visitor attractions

    OpenAIRE

    Ram, Yael; Bjork, Peter; Weidenfeld, Adi

    2016-01-01

    This paper aims to explore the relationships between place attachment and perceived authenticity of major visitor attractions. The empirical study was conducted with a sample of international tourists to major visitor attractions in two capital cities, Helsinki, Finland and Jerusalem, Israel. The results indicate a positive correlation between place attachment and authenticity. Major visitor attractions located in places with considerable heritage experience value are considered more authenti...

  5. The first 10,000 Adult Attachment Interviews: distributions of adult attachment representations in clinical and non-clinical groups.

    Science.gov (United States)

    Bakermans-Kranenburg, Marian J; van IJzendoorn, Marinus H

    2009-05-01

    More than 200 adult attachment representation studies, presenting more than 10,500 Adult Attachment Interview (AAI; George, Kaplan, & Main, 1985) classifications, have been conducted in the past 25 years. In a series of analyses on the distributions of the AAI classifications in various cultural and age groups, fathers, and high-risk and clinical samples, we used the distribution of the combined samples of North American non-clinical mothers (23% dismissing, 58% secure, 19% preoccupied attachment representations, and 18% additionally coded for unresolved loss or other trauma) to examine deviations from this normative pattern, through multinomial tests and analyses of correspondence. The analyses were restricted to AAI classifications coded according to the Main, Goldwyn, and Hesse (2003) system. We did not find gender differences in the use of dismissing versus preoccupied attachment strategies, and the AAI distributions were largely independent of language and country of origin. Clinical subjects showed more insecure and unresolved attachment representations than the norm groups. Disorders with an internalizing dimension (e.g., borderline personality disorders) were associated with more preoccupied and unresolved attachments, whereas disorders with an externalizing dimension (e.g., antisocial personality disorders) displayed more dismissing as well as preoccupied attachments. Depressive symptomatology was associated with insecurity but not with unresolved loss or trauma, whereas adults with abuse experiences or PTSD were mostly unresolved. In order to find more reliable associations with clinical symptoms and disorders, future AAI studies may make more fruitful use of continuous AAI scales in addition to the conventionally used categorical classifications.

  6. Phenotypes of non-attached Pseudomonas aeruginosa aggregates resemble surface attached biofilm.

    Directory of Open Access Journals (Sweden)

    Morten Alhede

    Full Text Available For a chronic infection to be established, bacteria must be able to cope with hostile conditions such as low iron levels, oxidative stress, and clearance by the host defense, as well as antibiotic treatment. It is generally accepted that biofilm formation facilitates tolerance to these adverse conditions. However, microscopic investigations of samples isolated from sites of chronic infections seem to suggest that some bacteria do not need to be attached to surfaces in order to establish chronic infections. In this study we employed scanning electron microscopy, confocal laser scanning microscopy, RT-PCR as well as traditional culturing techniques to study the properties of Pseudomonas aeruginosa aggregates. We found that non-attached aggregates from stationary-phase cultures have comparable growth rates to surface attached biofilms. The growth rate estimations indicated that, independently of age, both aggregates and flow-cell biofilm had the same slow growth rate as a stationary phase shaking cultures. Internal structures of the aggregates matrix components and their capacity to survive otherwise lethal treatments with antibiotics (referred to as tolerance and resistance to phagocytes were also found to be strikingly similar to flow-cell biofilms. Our data indicate that the tolerance of both biofilms and non-attached aggregates towards antibiotics is reversible by physical disruption. We provide evidence that the antibiotic tolerance is likely to be dependent on both the physiological states of the aggregates and particular matrix components. Bacterial surface-attachment and subsequent biofilm formation are considered hallmarks of the capacity of microbes to cause persistent infections. We have observed non-attached aggregates in the lungs of cystic fibrosis patients; otitis media; soft tissue fillers and non-healing wounds, and we propose that aggregated cells exhibit enhanced survival in the hostile host environment, compared with non

  7. Exploring the Link among State of Mind Concerning Childhood Attachment, Attachment in Close Relationships, Parental Bonding, and Psychopathological Symptoms in Substance Users

    Science.gov (United States)

    Musetti, Alessandro; Terrone, Grazia; Corsano, Paola; Magnani, Barbara; Salvatore, Sergio

    2016-01-01

    Background: In the present study, we have explored the link among styles of attachment and psychopathology in drug users. We know that insecure attachment predisposes the individuals the development of drug-addiction and psychopathological symptoms. However, we do not know which attachment is more frequent in drug users and which is related to particular psychopathological symptoms. The aim of the present work is to explore the relationship between childhood attachment state of mind, attachment in close relationships, parental bonding and psychopathology in sample of Italian substance users. Methods: We explored, in a sample of 70 drug users and drug-addicted patients, the childhood attachment state of mind measured by the Adult Attachment Interview, the attachment in close relationships by the Relationship Questionnaire and parental bonding measured by the Parental Bonding Instrument. The Symptom Check-List-90-R (SCL-90-R) measured psychopathological symptoms. Results: We found that parental bonding, rather than state of mind concerning childhood attachment or attachment in close relationships, is related to the psychopathological manifestation of anxiety, hostility, depression, and paranoid ideation in the sample. The latter occurs frequently in our sample, independent of state of mind concerning child attachment, attachment in close relationships, and parental bonding, suggesting its role either as a factor that favors a bad image of the participants’ own relationships or as a direct effect of consuming drugs. Conclusion: These results have clinical implications on suggesting ways of interventions that prevent drug-addiction, which should include the evaluation of attachment in the prodromic phases of substance use onset or rehabilitation programs to prevent and manage psychotic-like symptoms.

  8. Evaluation of the impact of solder die attach versus epoxy die attach in a state of the art power package

    CERN Document Server

    Czernohorsky, J; Viering, Matthias; Wright, L; Balanon, G

    2008-01-01

    Subject of this paper is the thermal investigation of epoxy (EDA) and solder (SDA) die attaches by a comparison of an ASIC with multiple heat sources in different package assemblies. Static and transient thermal measurements and simulations were performed to investigate the thermal behavior of two samples in a state of the art QFP power package differing only in the die attach material (EDA and SDA).

  9. Discriminant validity of the adult attachment interview.

    Science.gov (United States)

    Crowell, J A; Waters, E; Treboux, D; O'Connor, E O; Colon-Downs, C; Feider, O; Golby, B; Posada

    1996-10-01

    The Adult Attachment Interview is a semi-structured interview developed to investigate adults' attachment representations. Subjects are asked to describe their parents as caregivers, explain these descriptions, describe how their parents typically responded to distress, and discuss their current relationships with their parents. They are also asked to describe any significant losses and/or instances of abuse during childhood. Scoring focuses on the accessibility of early experiences to memory and the coherence and plausibility of the subject's narrative. Discriminant validity is always an important issue with such measures because IQ and other cognitively loaded variables offer plausible alternative interpretations or represent important correlates that should be treated as covariates when the measure is used. In addition, complex, multifaceted interviews always pose the risk of assessing general social adjustment rather than a more narrowly defined construct. This study examines the discriminant validity of the AAI vis(-)à-vis intelligence, social desirability, discourse style, and general social adjustment in a sample of 53 native-English-speaking, married women with preschool children. They were assessed with the AAI, a written IQ test, the Social Adjustment Scale, the Employment Experience Interview (discourse style), and a measure of social desirability. There were modest but significant correlations with IQ scores and social adjustment. There was no relation between AAI classifications and discourse style or social desirability. These results substantially strengthen the case for interpreting the AAI as an attachment-related measure.

  10. Maternal anxiety, maternal sensitivity, and attachment.

    Science.gov (United States)

    Stevenson-Hinde, Joan; Chicot, Rebecca; Shouldice, Anne; Hinde, Camilla A

    2013-01-01

    Previous research has related maternal anxiety to insecurity of attachment. Here we ask whether different aspects of maternal sensitivity mediate this link. From a community sample of intact families with 1-3 children, mothers with 4.5-year-olds were selected for low, medium, or high anxiety levels (N = 98). Following Mary Ainsworth's lead, our maternal sensitivity measures were primarily based on ratings of direct observations. Six sets of measures were obtained: positive maternal style at home (a mean of four different ratings); providing a sensitive framework, limit setting, allowing autonomy, criticizing/cutting in (each a mean over two laboratory joint tasks); and tension-making (a mean of three different ratings in a fear-inducing task). Regression analyses showed firstly that maternal anxiety rather than behavioral inhibition or sex of child was the significant predictor of each maternal sensitivity measure; and secondly that these measures rather than maternal anxiety or sex were the significant predictors of security of attachment. Finally, ANOVA's indicated which sets of maternal ratings were associated with each pattern of attachment (Avoidant, Secure, Ambivalent, or Controlling).

  11. Machiavellianism and Parental Attachment in Adolescence

    Directory of Open Access Journals (Sweden)

    András Láng

    2015-02-01

    Full Text Available Machiavellianism is a well-studied topic in several branches of psychology. Still, it has received little attention from a developmental perspective. Previous retrospective studies linked Machiavellianism to poor parental care, but actual reports of adolescents who live in their family of origin have been ignored so far. Therefore, we investigated the relationship between Machiavellianism and parental attachment in adolescence and possible sex differences based on life history theory. An adolescent sample (N = 376; 17.27 ± .77 years of age completed the Mach-IV and the maternal and paternal versions of revised Inventory of Parent and Peer Attachment (IPPA-R. According to our results, significant sex differences emerged in the relationship between Machiavellianism and attachment to parents. For girls, maternal alienation proved to be the only significant predictor of Machiavellianism, whereas for boys, low intensity and quality of verbal communication with father predicted higher levels of Machiavellianism. Results are discussed from an evolutionary perspective of socialization and from the perspective of emotion regulation.

  12. Activating Attachments Reduces Memories of Traumatic Images.

    Science.gov (United States)

    Bryant, Richard A; Foord, Rachael

    2016-01-01

    Emotional memories, and especially intrusive memories, are a common feature of many psychological disorders, and are overconsolidated by stress. Attachment theory posits that activation of mental representations of attachment figures can reduce stress and boost coping. This study tested the proposition that attachment activation would reduce consolidation of emotional and intrusive memories. Sixty-seven undergraduate students viewed subliminal presentations of traumatic and neutral images, which were preceded by subliminal presentations of either attachment-related images or non-attachment-related images; free recall and intrusive memories were assessed two days later. Participants with low avoidant attachment tendencies who received the attachment primes recalled fewer memories and reported fewer intrusions than those who received the non-attachment primes. Unexpectedly, those with high anxious attachment tendencies reported fewer memories. These findings generally accord with attachment theory, and suggest that consolidation of emotional memories can be moderated by activation of attachment representations. PMID:27631498

  13. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Measuring D_A and H at z=0.57 from the Baryon Acoustic Peak in the Data Release 9 Spectroscopic Galaxy Sample

    CERN Document Server

    Anderson, Lauren; Bailey, Stephen; Beutler, Florian; Bolton, Adam S; Brinkmann, J; Brownstein, Joel R; Chuang, Chia-Hsun; Cuesta, Antonio J; Dawson, Kyle S; Eisenstein, Daniel J; Honscheid, Klaus; Kazin, Eyal A; Kirkby, David; Manera, Marc; McBride, Cameron K; Mena, O; Nichol, Robert C; Olmstead, Matthew D; Padmanabhan, Nikhil; Palanque-Delabrouille, N; Percival, Will J; Prada, Francisco; Ross, Ashley J; Ross, Nicolas P; Sanchez, Ariel G; Samushia, Lado; Schlegel, David J; Schneider, Donald P; Seo, Hee-Jong; Strauss, Michael A; Thomas, Daniel; Tinker, Jeremy L; Tojeiro, Rita; Verde, Licia; Weinberg, David H; Xu, Xiaoying; Yeche, Christophe

    2013-01-01

    We present measurements of the angular diameter distance to and Hubble parameter at z=0.57 from the measurement of the baryon acoustic peak in the correlation of galaxies from the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey. Our analysis is based on a sample from Data Release 9 of 264,283 galaxies over 3275 square degrees in the redshift range 0.43

  14. Hamiltonian Dynamics of Preferential Attachment

    CERN Document Server

    Zuev, Konstantin; Krioukov, Dmitri

    2015-01-01

    Prediction and control of network dynamics are grand-challenge problems in network science. The lack of understanding of fundamental laws driving the dynamics of networks is among the reasons why many practical problems of great significance remain unsolved for decades. Here we study the dynamics of networks evolving according to preferential attachment, known to approximate well the large-scale growth dynamics of a variety of real networks. We show that this dynamics is Hamiltonian, thus casting the study of complex networks dynamics to the powerful canonical formalism, in which the time evolution of a dynamical system is described by Hamilton's equations. We derive the explicit form of the Hamiltonian that governs network growth in preferential attachment. This Hamiltonian turns out to be nearly identical to graph energy in the configuration model, which shows that the ensemble of random graphs generated by preferential attachment is nearly identical to the ensemble of random graphs with scale-free degree d...

  15. Psychometric Testing of the FACES III with Rural Adolescents

    Science.gov (United States)

    Ide, Bette; Dingmann, Colleen; Cuevas, Elizabeth; Meehan, Maurita

    2010-01-01

    This study tests the validity and reliability of the Family Adaptability and Cohesion Scale III (FACES III) in two samples of rural adolescents. The underlying theory is the linear 3-D circumplex model. The FACES III was administered to 1,632 adolescents in Grades 7 through 12 in two counties in a rural western state. The FACES III Scale and the…

  16. Strains around distally inclined implants retaining mandibular overdentures with Locator attachments: an in vitro study

    OpenAIRE

    Elsyad, Moustafa Abdou; Setta, Fathi Abo; Khirallah, Ahmed Samir

    2016-01-01

    PURPOSE The aim of the present study was to evaluate, by means of strain gauge analysis, the effect of different implant angulations on strains around two implants retaining mandibular overdenture with Locator attachments. MATERIALS AND METHODS Four duplicate mandibular acrylic models were constructed. Two implants were inserted in the canine regions using the following degrees of distal inclinations: group I (control); 0°, group II; 10°, group III; 20°, and group IV; 30°. Locator pink attach...

  17. Impact of early attachment experiences on adolescents’ mental health and future thinking

    OpenAIRE

    West, Holly

    2014-01-01

    Background: Attachment theory [Bowlby, J. 1969, 1973, 1980 Attachment & Loss, Volumes I-III, London: Hogarth Press] proposes that a person’s experiences of care in infancy and childhood lay the foundations for their internal working models of themselves and others. Inconsistent, unpredictable or hostile caregiving can lead individuals to hold negative internal working models which can impact on their mental health later in life. Many looked after and accommodated young people h...

  18. Diameters in preferential attachment models

    OpenAIRE

    Dommers, S.; van der Hofstad, R.; Hooghiemstra, G.

    2010-01-01

    In this paper, we investigate the diameter in preferential attachment (PA-) models, thus quantifying the statement that these models are small worlds. The models studied here are such that edges are attached to older vertices proportional to the degree plus a constant, i.e., we consider affine PA-models. There is a substantial amount of literature proving that, quite generally, PA-graphs possess power-law degree sequences with a power-law exponent \\tau>2. We prove that the diameter of the PA-...

  19. Attachment Styles in a group of Patients with Terminal Renal Insufficiency

    Directory of Open Access Journals (Sweden)

    María Pía Santelices-Álvarez

    2009-06-01

    Full Text Available Several studies indicate that attachment in adults is feasible with modificationsthroughout life, especially in situations of change, as is the experienceof chronic disease. This study aims to describe the attachment patterns ofa group of patients with end-stage renal disease. We studied a group of 22patients with this disease requiring dialysis, compared with a group of 22adults for non-clinical sample (without disease, matching the participantsaccording to sex and age. The results showed differences significant patternsof attachment in both groups. Clinically healthy individuals tend to havepredominantly a secure attachment pattern, while those patients on dialysistend to have a preoccupied attachment pattern.

  20. Structural Interfaces and Attachments in Biology

    CERN Document Server

    Birman, Victor; Genin, Guy

    2013-01-01

    Attachment of dissimilar materials in engineering and surgical practice is a perennial challenge. Bimaterial attachment sites are common locations for injury, repeated injury, and mechanical failure. Nature presents several highly effective solutions to the challenge of bimaterial attachment that differ from those found in engineering practice. Structural Interfaces and Attachments in Biology describes the attachment of dissimilar materials from multiple perspectives. The text will simultaneously elucidate natural bimaterial attachments and outline engineering principles underlying successful attachments to the communities of tissue engineers and surgeons. Included an in-depth analysis of the biology of attachments in the body and mechanisms by which robust attachments are formed, a review of current concepts of attaching dissimilar materials in surgical practice and a discussion of bioengineering approaches that are currently being developed. This book also: Provides the first comprehensive treatment of phys...

  1. Personality traits are related to intimate partner violence among securely attached individuals

    NARCIS (Netherlands)

    N.M.L. Buck; P.E.M. Leenaars; P.M.G. Emmelkamp; H.J.C. van Marle

    2014-01-01

    The general assumption has been that male batterers from clinical samples were mostly insecurely attached as compared to non-batterers. Recently, a large group was found (39.4 % of batterers in a clinical sample) whose main attachment style was secure. No previous studies have examined specifically

  2. Ethanolamine phosphoglycerol attachment to eEF1A is not essential for normal growth of Trypanosoma brucei

    OpenAIRE

    Eva Greganova; Peter Bütikofer

    2012-01-01

    Eukaryotic elongation factor 1A (eEF1A) is the only protein modified by ethanolamine phosphoglycerol (EPG). In mammals and plants, EPG is attached to conserved glutamate residues located in eEF1A domains II and III, whereas in the unicellular eukaryote, Trypanosoma brucei, a single EPG moiety is attached to domain III. A biosynthetic precursor of EPG and structural requirements for EPG attachment to T. brucei eEF1A have been reported, but the role of this unique protein modification in cellul...

  3. Attachment patterns and separation anxiety symptom

    OpenAIRE

    Sakineh - Mofrad; Rohani - Abdullah; Ikechkwu - Uba

    2010-01-01

    Literature suggests that child attachment and anxiety symptoms are related. One purpose of the present study was to assess whether attachment patterns related differently to separation anxiety symptoms (fear of being alone, and fear of abandonment). Three attachment patterns assessed were secure, avoidant and ambivalent attachment. Findings indicated that ambivalent attachment was most consistently related with higher separation anxiety symptom. And also, different associations were found bet...

  4. Bar overdentures utilizing the Locator attachment.

    Science.gov (United States)

    Schneider, A L; Kurtzman, G M

    2001-01-01

    Implant-retained overdentures are a restorative option for both the fully and partially edentulous arches. A new attachment, the Locator, which features a reduced interarch requirement and the advantage of built-in guide planes providing precise insertion, is described. The Locator is an advancement in attachment technology, with an improved design combined from the best features of a ball attachment, an ERA attachment, and a cap attachment.

  5. PRECISION ATTACHMENTS; APPLICATIONS AND LIMITATIONS

    Directory of Open Access Journals (Sweden)

    Prabhakar

    2012-12-01

    Full Text Available ABSTRACT: A unique concern of a removable denture when compare d to others is retention. Retention is the ability of the prosthesis to resist the movement of denture away from the supporting tissues/teeth. The component of removable d enture which provides retention is called as direct retainer. 1,3,4 A direct retainer can be either an extracoronal or intracoronal retainer. Extracoronal direct retainer uses mechanical resistance to displa cement through components placed on external surface of abutment teeth. Intracoronal retainer is either cast or attached to tally within the restored natural contours of an abutment tooth. 1 One of the main drawbacks of extracoronal retainers used in partial dentures is visibility. Many patients find themselves in an aest hetically compromised state when these retainers are placed on teeth in visible area. Preci sion attachments provide solution for this problem. Also, precision attachments provide better ve rtical support and better stimulation to the underlying tissue through intermittent vertical massage. 1,9 Although the history of intracoronal retainers goes back to 5 th and 4 th centuries BC, technically more sound developments began in early 2 0 th century AD, with Dr. Herman E. S. Chayes formulating the principle of internal attachme nt in 1906. Since then precision attachments are playing an important role in removabl e and fixed partial denture, conventional and implant supported overdenture. 9

  6. Adult attachment and psychosocial functioning

    NARCIS (Netherlands)

    Pielage, Suzanne Brenda

    2006-01-01

    In the trilogy Attachment, Separation and Loss (1969, 1973, 1980), Bowlby theorized that early experiences with caregivers affect the quality of individuals’ later (romantic) relationships and, consequently, their mental health. The current thesis set out to examine the relationships between adult a

  7. The Turkish version of Maternal Attachment Inventory

    Directory of Open Access Journals (Sweden)

    Oya Kavlak

    2009-01-01

    Full Text Available Objective: The research has been designed as methodological with purpose of the validity and the reliability of the Turkish language version of Maternal Attachment Inventory on mothers within one and four months postpartum. Method: This study was carried out with mothers registered at 19 Health Clinics and three Maternal-Child Health and Family Planning Clinics in which connected to Bornova Health Presidency in Izmir. The sample of research has been composed three clinics in which determined with the purposive sampling technique. First stage, the research was studied on 165 mothers when their babies were approximately 30-40 days old in these registered clinics.At the second stage of research has been interviewed again with 78 mothers when their babies were approximately 90-105 days old.Results: It is determined that experts consensuses about content of items as a result of analysis (Kendall’s W=0.274, p=0.001

  8. An Investigation into Associations with Attachment, Companion Pet Attachment, Empathy, and Prosocial Behaviors in 18-20 Year Old College Students: A Mixed Methods Study

    Science.gov (United States)

    Anderson, Christian

    2010-01-01

    This study examines empathy, parental attachment, companion pet attachment and social behaviors in a sample of 120 students between the ages of 18-20 enrolled at Front Range Community College in Westminster CO during the fall semester 2008. The study is based on the research questions posed by Thompson and Gullone (2008) but pays particular…

  9. Attached-sunspace designs: a nationwide economic appraisal

    Energy Technology Data Exchange (ETDEWEB)

    Roach, F.; Kirschner, C.

    1980-01-01

    Performance estimates for attached-sunspace passive solar heated residences have recently been incorporated into the Los Alamos/UNM EASE III model. These estimates are used to analyze the economic performance of a fixed dimension sunspace design when attached to a pre-existing single family residential unit. The sunspace is a passive design which can be easily and effectively adapted to a retrofit situation. Several key parameters are carefully evaluated for the sunspace retrofit design. These include loan or mortgage terms, ownership period, resale potential and competing conventional fuel prices. General economic and design parameters are combined in a variant of life cycle costing to evaluate the feasibility of both owner-built and contractor-built attached sunspaces for 220 regions in the contiguous United States. This evaluation is made for two conventional fuel types - natural gas and electric resistance - and for three resale values - 0%, 100%, and 200%. Results show that the prospect for conventional fuel displacement through retrofit of attached sunspaces is very good with the design's economic performance enhanced in regions with expensive conventional fuel alternatives.

  10. Arsenate adsorption and desorption kinetics on a Fe(III)-modified montmorillonite

    Energy Technology Data Exchange (ETDEWEB)

    Luengo, Carina; Puccia, Virginia [INQUISUR, Departamento de Quimica, Universidad Nacional del Sur, Bahia Blanca (Argentina); Avena, Marcelo, E-mail: mavena@uns.edu.ar [INQUISUR, Departamento de Quimica, Universidad Nacional del Sur, Bahia Blanca (Argentina); Consejo de Investigaciones Cientificas y Tecnicas de Argentina (CONICET) (Argentina)

    2011-02-28

    Graphical abstract: Arsenate adsorption is much higher in Fe-exchanged montmorillonite (Fe-M) than in Na-exchanged montmorillonite (Na-M). The adsorption takes place in a two-step mechanism. Research highlights: {yields} Adsorption-desorption kinetics of arsenate on a Fe(III)-modified montmorillonite is reported. {yields} Fe(III) species are the responsible for arsenate adsorption. {yields} The adsorption takes place in a two-step mechanism. {yields} Adsorption and desorption studies reflect the presence of externally and internally adsorbed arsenate. {yields} Fe(III) species in Fe-M are more efficient in binding arsenate than in ferrihydrite or goethite. - Abstract: The adsorption-desorption kinetics of arsenate on a Fe(III)-modified montmorillonite (Fe-M) was studied at different arsenate concentrations, pH and stirring rates. The synthesized solid was a porous sample with Fe(III) present as a mix of monomeric and polymeric Fe(III) species in the interlayer and on the external surface. Adsorption took place in a two-step mechanism, with an initial fast binding of arsenate to Fe(III) species at the external surface (half-lives of 1 min or shorter) followed by a slower binding to less accessible Fe(III) species in pores and the interlayer (half-lives of around 1 h). Desorption kinetics also reflected the presence of externally and internally adsorbed arsenate. At pH 6 the maximum adsorbed arsenate was 52 {mu}mol/g, a value that is low as compared to adsorption on ferrihydrite (700 {mu}mol/g) and goethite (192-220 {mu}mol/g). However, since the Fe(III) content of Fe-M is much lower than that of ferrihydrite and goethite, Fe(III) species in Fe-M are more efficient in binding arsenate than in ferrihydrite or goethite (one As atom is attached every 8.95 iron atoms). This high binding efficiency indicates that Fe(III) species are well spread on montmorillonite, forming small oligomeric species or surface clusters containing just a few iron atoms.

  11. Prediction of Addiction Potential in Youth According to Attachment Styles

    Directory of Open Access Journals (Sweden)

    Mahdieh Adroom

    2014-05-01

    Full Text Available Background: The present study aim is to predict the psychological inclination to drug use in youths by studying their attachment styles. Materials and Methods: The research sample includes male and female students of Zahedan Medical Science University with the average age of 19-24. The proportional cluster random sampling was used for selection of participant. The hypotheses were analyzed, using Pearson correlation method, regression analysis, one way variance analysis and t-test for two independent groups4T. Results: The results indicated positive relationships among addiction aptitude and insecure-avoidant attachment style and negative relationship between addiction aptitude and secure attachment style4T. Conclusion: It is necessary to focus training intervention and prevention on all students4T.

  12. The influence of leadership style on subordinates' attachment to the leader.

    Science.gov (United States)

    Molero, Fernando; Moriano, Juan A; Shaver, Phillip R

    2013-01-01

    The aim of this research is to explore the extent to which employees establish attachment bonds with their leaders and the effects these bonds have on organizational outcomes. A sample of 225 participants reported on their supervisor's leadership style (transformational, transactional, or passive-avoidant), their attachment bonds to this supervisor (anxious or avoidant), and four organizational variables (subordinate's satisfaction, identification with the organization, extra effort, and perceived leadership effectiveness). Results, analyzed using a Partial Least Squares (PLS) approach, indicated that (a) transformational leadership was negatively associated with employees' insecure (anxious or avoidant) attachment to their leader; (b) passive/avoidant leadership was positively associated with subordinates' insecure attachment to their leader; (c) transactional leadership was positively associated with employee's anxious attachment but not with their avoidant attachment; (d) avoidant, but not anxious, attachment to the leader was negatively associated with employee satisfaction, perceived leader effectiveness, employee's extra effort, and organizational identification. PMID:24230925

  13. The influence of leadership style on subordinates' attachment to the leader.

    Science.gov (United States)

    Molero, Fernando; Moriano, Juan A; Shaver, Phillip R

    2013-01-01

    The aim of this research is to explore the extent to which employees establish attachment bonds with their leaders and the effects these bonds have on organizational outcomes. A sample of 225 participants reported on their supervisor's leadership style (transformational, transactional, or passive-avoidant), their attachment bonds to this supervisor (anxious or avoidant), and four organizational variables (subordinate's satisfaction, identification with the organization, extra effort, and perceived leadership effectiveness). Results, analyzed using a Partial Least Squares (PLS) approach, indicated that (a) transformational leadership was negatively associated with employees' insecure (anxious or avoidant) attachment to their leader; (b) passive/avoidant leadership was positively associated with subordinates' insecure attachment to their leader; (c) transactional leadership was positively associated with employee's anxious attachment but not with their avoidant attachment; (d) avoidant, but not anxious, attachment to the leader was negatively associated with employee satisfaction, perceived leader effectiveness, employee's extra effort, and organizational identification.

  14. Eating disorders in adolescence: attachment issues from a developmental perspective

    Directory of Open Access Journals (Sweden)

    Manuela eGander

    2015-08-01

    Full Text Available In the present article we review findings from an emerging body of research on attachment issues in adolescents with eating disorders from a developmental perspective. First, we will outline the crucial developmental changes in the attachment system and discuss how they might be related to the early onset of the disease. Then we will report on the major results from attachment studies using self-report and narrative instruments in that age group. Studies with a developmental approach on attachment will be analyzed in more detail. The high incidence of the unresolved attachment pattern in eating disorder samples is striking, especially for patients with anorexia nervosa. Interestingly, this predominance of the unresolved category was also found in their mothers. To date, these transgenerational aspects are still poorly understood and therefore represent an exciting research frontier. Future studies that include larger adolescent samples and provide a more detailed description including symptom severity and comorbidity would contribute to a better understanding of this complex and painful condition.

  15. Eating disorders in adolescence: attachment issues from a developmental perspective

    Science.gov (United States)

    Gander, Manuela; Sevecke, Kathrin; Buchheim, Anna

    2015-01-01

    In the present article we review findings from an emerging body of research on attachment issues in adolescents with eating disorders from a developmental perspective. Articles for inclusion in this review were identified from PsychINFO (1966–2013), Sciencedirect (1970–2013), Psychindex (1980–2013), and Pubmed (1980–2013). First, we will outline the crucial developmental changes in the attachment system and discuss how they might be related to the early onset of the disease. Then we will report on the major results from attachment studies using self-report and narrative instruments in that age group. Studies with a developmental approach on attachment will be analyzed in more detail. The high incidence of the unresolved attachment pattern in eating disorder samples is striking, especially for patients with anorexia nervosa. Interestingly, this predominance of the unresolved category was also found in their mothers. To date, these transgenerational aspects are still poorly understood and therefore represent an exciting research frontier. Future studies that include larger adolescent samples and provide a more detailed description including symptom severity and comorbidity would contribute to a better understanding of this complex and painful condition. PMID:26321974

  16. Adult attachment processes: individual and couple perspectives.

    Science.gov (United States)

    Bartholomew, K

    1997-09-01

    This paper overviews a new approach to understanding the range of difficulties experienced in close attachment relationships in adulthood. Drawing on the work of Bowlby, four prototypic adult attachment patterns are defined in terms of the intersection of two underlying dimensions, the positivity of the person's self-image and the positivity of the person's image of others (Bartholomew, 1990; Bartholomew & Horowitz, 1991). The distinct interpersonal difficulties associated with each attachment pattern are described. Findings are presented indicating that individual differences in attachment have implications for the quality of adults' romantic relationships, and that attachment theory may be helpful in understanding violent spousal relationships. Five current issues in the study of adult attachment are addressed: the stability of attachment patterns, the associations between attachment and general personality factors, the relative merits of categorical and prototype assessments of attachment, the identification of multiple attachments in adulthood, and the specificity of adult attachment patterns. It is suggested that the four-category model of adult attachment is especially sensitive to the range and complexity of attachment-related difficulties experienced in adulthood.

  17. Pyridine appended L-methionine: A novel chelating resin for pH dependent Cr speciation with scanning electron microscopic evidence and monitoring of yeast mediated green bio-reduction of Cr(VI) to Cr(III) in environmental samples

    International Nuclear Information System (INIS)

    Chemical speciation and pH dependent separation of Cr(III) and Cr(VI) species in environmental samples have been achieved by solid phase extraction using a new chelating resin containing pyridine appended L-methionine. Cr(III) is completely sorbed on the resin at pH 8.0 and Cr(VI) at pH 2.0. Hence a pH dependent separation of Cr(III) and Cr(VI) is possible with a limit of detection of 1.6 μg mL-1 and 0.6 μg mL-1 respectively. The sorption capacity of the resin for Cr(III) and Cr(VI) is 2.8 mmol g-1 and 1.3 mmol g-1 respectively. The sorption of chromium on the resin is supported by scanning electron microscopy (SEM). Complete desorption of Cr(III) and Cr(VI) from 1 g of Cr loaded resin was achieved using 10 mL of 2 mol L-1 HNO3 and 6 mL of 3 mol L-1 HNO3 respectively. Quantitative recoveries of Cr(III) (pH 8.0) and Cr(VI) (pH 2.0) were found to be 96.0% and 98.0% respectively. Reduction efficiency of Rhodotornula mucilaginosa yeast from Cr(VI) to Cr(III) was monitored with this new resin. Concentrations of metal ions were measured by flame atomic absorption spectroscopy (FAAS).

  18. Children's Representations of Attachment Relationships in Family Drawings.

    Science.gov (United States)

    Fury, Gail; Carlson, Elizabeth A.; Sroufe, L. Alan

    1997-01-01

    Investigated the representational model of self and attachment figures in family drawings of 8- to 9-year-olds in a high-risk, racially mixed sample. Found that specific signs and global rating scales were related to early relationship history. Even after contemporary influences of child intelligence, stress, and emotional functioning were…

  19. Romantic Attachment and Relationship Functioning in Same-Sex Couples

    Science.gov (United States)

    Mohr, Jonathan J.; Selterman, Dylan; Fassinger, Ruth E.

    2013-01-01

    The present study was designed to investigate links between dimensions of romantic attachment and relationship functioning in a cross-sectional sample of people in same-sex relationships, with the goals of replicating basic findings from research on heterosexual couples and advancing understanding of unique issues faced by same-sex couples. The…

  20. Machiavellianism and Adult Attachment in General Interpersonal Relationships and Close Relationships

    OpenAIRE

    Tamás Ináncsi; András Láng; Tamás Bereczkei

    2015-01-01

    Up to the present, the relationship between Machiavellianism and adult attachment has remained a question to be answered in the psychological literature. That is why this study focused on the relationship between Machiavellianism and attachment towards significant others in general interpersonal relationships and in intimate-close relationships. Two attachment tests (Relationship Questionnaire and long-form of Experiences in Close Relationship) and the Mach-IV test were conducted on a sample ...

  1. The Relation of Attachment Security to Adolescents’ Paternal and Peer Relationships, Depression, and Externalizing Behavior

    OpenAIRE

    Allen, Joseph P.; Porter, Maryfrances; McFarland, Christy; McELHANEY, KATHLEEN BOYKIN; Marsh, Penny

    2007-01-01

    The relation of attachment security to multiple domains of psychosocial functioning was examined in a community sample of 167 early adolescents. Security of attachment organization, assessed using the Adult Attachment Interview, was linked to success in establishing autonomy while maintaining a sense of relatedness both with fathers and with peers, even after accounting for predictions from qualities of the mother-teen relationship. Growth curve analyses revealed links of insecurity to increa...

  2. Adult Attachment as Mediator between Recollections of Childhood and Satisfaction with Life

    OpenAIRE

    Hinnen, C.; Sanderman, R; Sprangers, M.A.

    2009-01-01

    In accordance with attachment theory, the present study investigates whether internal working models of attachment mediated the association between childhood memories and satisfaction about life in adulthood. A convenient sample of 437 participants completed questionnaires assessing a broad range of childhood memories, working models of attachment and life satisfaction. After controlling for demographics, relational status and living condition, Baron and Kenny's mediation criteria were met fo...

  3. Psychological characteristics of future helping professionals: Empathy and attachment of psychology students

    OpenAIRE

    Dimitrijević Aleksandar; Hanak Nataša; Milojević Sonja

    2011-01-01

    In this study we investigated whether psychology students differ than students who have chosen non-helping professions in psychological features important for helping activities: attachment and empathy. The sample consisted of psychology students from Belgrade and Novi Sad (N=452) and students from several Belgrade University faculties for non-helping professions. The revised version of Attachment Questionnaire was used for assessment of attachment, while empathy was assessed by Empathy...

  4. Psychometric Characteristics of the Persian (Farsi) Version of Attachment Style Questionnaire

    OpenAIRE

    Ali Firoozabadi; Zabihollah Abedi; Roqayeh Aliyari; Behzad Zolfaghari; Ahmad Ghanizadeh

    2014-01-01

    Background: Attachment relationship provides a secure base for the infants from which to explore the environment and a safe haven to return to in times of danger. Attachment style shapes the behavior of individuals in adulthood. There are many different measures of attachment and a lot of controversy about what they measure and how they relate to each other. Hence, we tried to evaluate the psychometric properties of one of such questionnaires on a sample of the Iranian population. Methods...

  5. Attaching Chuck Keys to Machine Tools

    Science.gov (United States)

    Richardson, V.

    1984-01-01

    Chuck keys attached to portable machine tools by retracting lanyards. Lanyard held taut by recoil caddy attached to tool base. Chuck key available for use when needed and safely secured during operation of tool.

  6. Antecedents of maternal parenting stress: the role of attachment style, prenatal attachment and dyadic adjustment in first-time mothers

    Directory of Open Access Journals (Sweden)

    Claudia eMazzeschi

    2015-09-01

    Full Text Available The transition to parenthood is widely considered a period of increased vulnerability often accompanied by stress. Abidin conceived parenting stress as referring to specific difficulties in adjusting to the parenting role. Most studies of psychological distress arising from the demands of parenting have investigated the impact of stress on the development of dysfunctional parent-child relationships and on adult and child psychopathology. Studies have largely focused on mothers’ postnatal experience; less attention has been devoted to maternal prenatal characteristics associated with the subsequent parental stress and studies of maternal prenatal predictors are few. Furthermore, no studies have examined that association exclusively with samples of first-time mothers. With an observational prospective study design with two time periods, the aim of this study was to investigate the role of mothers’ attachment style, maternal prenatal attachment to the fetus and dyadic adjustment during pregnancy (7th month of gestation and their potential unique contribution to parenting stress three months after childbirth in a sample of nulliparous women. Results showed significant correlations between antenatal measures. Maternal attachment style (especially relationship anxiety was negatively correlated with prenatal attachment and with dyadic adjustment; positive correlations resulted between prenatal attachment and dyadic adjustment. Each of the investigated variables was also good predictor of parenting stress three months after childbirth. Findings suggested how these dimensions could be considered as risk factors in the transition to motherhood and in the very beginning of the emergence of the caregiving system, especially with first-time mothers

  7. Antecedents of maternal parenting stress: the role of attachment style, prenatal attachment, and dyadic adjustment in first-time mothers.

    Science.gov (United States)

    Mazzeschi, Claudia; Pazzagli, Chiara; Radi, Giulia; Raspa, Veronica; Buratta, Livia

    2015-01-01

    The transition to parenthood is widely considered a period of increased vulnerability often accompanied by stress. Abidin conceived parenting stress as referring to specific difficulties in adjusting to the parenting role. Most studies of psychological distress arising from the demands of parenting have investigated the impact of stress on the development of dysfunctional parent-child relationships and on adult and child psychopathology. Studies have largely focused on mothers' postnatal experience; less attention has been devoted to maternal prenatal characteristics associated with subsequent parental stress and studies of maternal prenatal predictors are few. Furthermore, no studies have examined that association exclusively with samples of first-time mothers. With an observational prospective study design with two time periods, the aim of this study was to investigate the role of mothers' attachment style, maternal prenatal attachment to the fetus and dyadic adjustment during pregnancy (7th months of gestation) and their potential unique contribution to parenting stress 3 months after childbirth in a sample of nulliparous women. Results showed significant correlations between antenatal measures. Maternal attachment style (especially relationship anxiety) was negatively correlated with prenatal attachment and with dyadic adjustment; positive correlations resulted between prenatal attachment and dyadic adjustment. Each of the investigated variables was also good predictor of parenting stress 3 months after childbirth. Findings suggested how these dimensions could be considered as risk factors in the transition to motherhood and in the very beginning of the emergence of the caregiving system, especially with first-time mothers.

  8. Antecedents of maternal parenting stress: the role of attachment style, prenatal attachment, and dyadic adjustment in first-time mothers.

    Science.gov (United States)

    Mazzeschi, Claudia; Pazzagli, Chiara; Radi, Giulia; Raspa, Veronica; Buratta, Livia

    2015-01-01

    The transition to parenthood is widely considered a period of increased vulnerability often accompanied by stress. Abidin conceived parenting stress as referring to specific difficulties in adjusting to the parenting role. Most studies of psychological distress arising from the demands of parenting have investigated the impact of stress on the development of dysfunctional parent-child relationships and on adult and child psychopathology. Studies have largely focused on mothers' postnatal experience; less attention has been devoted to maternal prenatal characteristics associated with subsequent parental stress and studies of maternal prenatal predictors are few. Furthermore, no studies have examined that association exclusively with samples of first-time mothers. With an observational prospective study design with two time periods, the aim of this study was to investigate the role of mothers' attachment style, maternal prenatal attachment to the fetus and dyadic adjustment during pregnancy (7th months of gestation) and their potential unique contribution to parenting stress 3 months after childbirth in a sample of nulliparous women. Results showed significant correlations between antenatal measures. Maternal attachment style (especially relationship anxiety) was negatively correlated with prenatal attachment and with dyadic adjustment; positive correlations resulted between prenatal attachment and dyadic adjustment. Each of the investigated variables was also good predictor of parenting stress 3 months after childbirth. Findings suggested how these dimensions could be considered as risk factors in the transition to motherhood and in the very beginning of the emergence of the caregiving system, especially with first-time mothers. PMID:26441808

  9. Oxytocin enhances the experience of attachment security

    OpenAIRE

    Buchheim, Anna; Heinrichs, Markus; George, Carol; Pokorny, Dan; Koops, Eva; Henningsen, Peter; O’Connor, Mary-Frances; Gundel, Harald

    2009-01-01

    Repeated interactions between infant and caregiver result in either secure or insecure relationship attachment patterns, and insecure attachment may affect individual emotion-regulation and health. Given that oxytocin enhances social approach behavior in animals and humans, we hypothesized that oxytocin might also promote the experience of attachment security in humans. Within a 3-week interval 26 healthy male students classified with an insecure attachment pattern were invited twice to an ex...

  10. Attachment Theory, Foster Parents and Diversity Tolerance

    OpenAIRE

    Kenny, Michael; Fleming, Ted

    2009-01-01

    relevance to attachment within the biological and foster family. Yet every foster parent has a childhood attachment history that influences their interpersonal relationships in adulthood. The primary concern of the foster parent and their supports is with the foster child. But as a result the foster parent may distract or block reflection on their own attachment history. This presentation will focus on attachment theory and the adult, with particular reference to the foster parent. The pre...

  11. Development of foster mother-child attachment

    OpenAIRE

    Korhonen, J

    2014-01-01

    The impact of early attachment relationships and child-adult attachment relationships to children’s social and emotional development has been recognised for a long time. Since the pioneering attachment theories of John Bowlby and Mary Ainsworth highlighting the importance of secure child-adult attachments, many other theories from various perspectives have risen to fill in the gaps. These theories are examined with the framework of foster care in mind. In Finland, the primary solution fo...

  12. Confiabilidade de instrumentos diagnósticos: estudo do inventário de sintomas psiquiátricos do DSM-III aplicado em amostra populacional Reliability of diagnostic instruments: investigating the psychiatric DSM-III checklist applied to community samples

    Directory of Open Access Journals (Sweden)

    Sérgio Baxter Andreoli

    2001-12-01

    Full Text Available O objetivo foi estudar a confiabilidade do inventário de sintomas psiquiátricos do DSM-III aplicado em amostras representativas da população geral de três cidades brasileiras. Foram utilizados os métodos do entrevistador-observador e de consistência interna para medir a confiabilidade. Os diagnósticos de ansiedade generalizada, na vida (k = 0,46, no ano (k = 1,00, depressão na vida (k = 0,77 e os diagnósticos de abuso e dependência de álcool na vida (k = 1,00 foram confiáveis de forma consistente nos dois métodos empregados. Os diagnósticos de agorafobia (k = 1,00, fobia simples (k = 0,77, transtorno psicótico não esquizofrênico (k = 1,00 e o de fatores psicológicos que afetam o físico (1,00, todos feitos para a vida, apresentaram confiabilidade excelente medidos por meio do Kappa. O principal problema de medir a confiabilidade em estudos populacionais é a baixa prevalência de alguns diagnósticos que resulta em uma pequena variabilidade nas respostas positivas, o que impossibilita o cálculo do Kappa. Por causa disso, apenas 11 dos 39 diagnósticos que compõem o inventário puderam ser examinados. Recomenda-se a utilização do método de teste e re-teste com um tempo curto entre as entrevistas para diminuir esse problema.This study focused on the reliability of the DSM-III inventory of psychiatric symptoms in representative general population samples in three Brazilian cities. Reliability was assessed through two different designs: inter-rater reliability and internal consistency. Diagnosis of lifetime (k = 0.46 and same-year generalized anxiety (k = 1.00, lifetime depression (k = 0.77, and lifetime alcohol abuse and dependence (k = 1.00 was consistently reliable in the two methods. Lifetime diagnosis of agoraphobia (k = 1.00, simple phobia (k = 0.77, non-schizophrenic psychosis (k = 1.00, and psychological factors affecting physical health (1.00 showed excellent reliability as measured by the kappa coefficient. The main

  13. Foster children's attachment behavior and representation: Influence of children's pre-placement experiences and foster caregiver's sensitivity.

    Science.gov (United States)

    Bovenschen, Ina; Lang, Katrin; Zimmermann, Janin; Förthner, Judith; Nowacki, Katja; Roland, Inga; Spangler, Gottfried

    2016-01-01

    Although the majority of foster children have been exposed to early adversity in their biological families and have experienced one or more disruptions of attachment relationships, most studies surprisingly found foster children to be as securely attached as children in low-risk samples. However, attention has been paid almost exclusively to attachment formation in young children up to two years of age, and the majority of studies solely investigated attachment behavior whereas few is known about foster children's representations about attachment relationships. To extend findings on attachment in foster children and its predictors, our study examined both attachment behavior and representations in foster children aged between 3 and 8 years. Diverse potential predictors including child variables, birth parents' variables, pre-placement experiences, and foster caregiver's behavior were included in the analyses. Results revealed that foster children showed both lower attachment security and higher disorganization scores than children in low-risk samples. Attachment behavior and representation were found to be widely independent from each other. Different factors contributed to attachment behavior and representation: whereas foster children's attachment behavior was mainly influenced by foster parents' behavior, pre-placement experiences did predict hyperactivation and disorganization on the representational level. The results indicate that, when intervening with foster families, it seems crucial to focus not exclusively on the promotion of secure attachment behavior but also to develop interventions enhancing secure and organized attachment representations. PMID:26412616

  14. No-migration variance petition. Volume 3, Revision 1: Appendix B, Attachments A through D

    Energy Technology Data Exchange (ETDEWEB)

    1990-03-01

    Volume III contains the following attachments: TRUPACT-II content codes (TRUCON); TRUPACT-II chemical list; chemical compatibility analysis for Rocky Flats Plant waste forms (Appendix 2.10.12 of TRUPACT-II safety analysis report); and chemical compatibility analyses for waste forms across all sites.

  15. Temperament, disordered attachment and parental sensitivity in foster care: Differential findings on attachment security for shy children

    NARCIS (Netherlands)

    Schipper, de J.C.; Oosterman, M.; Schuengel, C.

    2012-01-01

    In a foster care sample, we tested the moderating effect of temperamental shyness on the association between parental sensitivity and attachment quality. The foster parents of 59 foster children (age M = 57 months, SD = 16.4) filled out the Child Behavior Questionnaire. To control for confounds, sym

  16. 21 CFR 872.3165 - Precision attachment.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Precision attachment. 872.3165 Section 872.3165...) MEDICAL DEVICES DENTAL DEVICES Prosthetic Devices § 872.3165 Precision attachment. (a) Identification. A precision attachment or preformed bar is a device made of austenitic alloys or alloys containing 75...

  17. Female domestic violence offenders: their attachment security, trauma symptoms, and personality organization.

    Science.gov (United States)

    Goldenson, Julie; Geffner, Robert; Foster, Sharon L; Clipson, Clark R

    2007-01-01

    Unlike male domestic violence offenders, female domestic violence offenders have traditionally been overlooked in research and theory, despite the fact that females also have high rates of domestic violence perpetration. Towards the aim of extending extant research on male and female pepetrators of domestic violence, we examined attachment style, trauma symptoms, and personality organization in 33 female offenders receiving mandated treatment for domestic violence. These offenders were compared to 32 nonoffending women receiving psychological treatment. The Experiences in Close Relationships Revised (ECR-Revised) was used to examine adult attachment, the Trauma Symptom Inventory (TSI) was used to examine trauma symptomology, and finally, the Millon Clinical Multiaxial Inventory III (MCMI-III) was used to examine cluster B personality traits. Analyses indicated that female domestic violence offenders reported less attachment security, more trauma-related symptoms, and more personality psychopathology (Antisocial, Borderline, and Dependent Subscales) than did nonoffender clinical comparison women.

  18. How Do School Connectedness and Attachment to Parents Interrelate in Predicting Adolescent Depressive Symptoms?

    Science.gov (United States)

    Shochet, Ian M.; Homel, Ross; Cockshaw, Wendell D.; Montgomery, Danielle T.

    2008-01-01

    In this study, we tested whether school connectedness mediated or moderated the effect of parental attachment on adolescent depressive symptoms. A sample of 153 secondary school students ranging from 8th to 12th grade were assessed using measures of parental attachment, school connectedness, and depressive symptoms. Independently, parental…

  19. Examining the Link between Infant Attachment and Child Conduct Problems in Grade 1

    Science.gov (United States)

    Vando, Jessica; Rhule-Louie, Dana M.; McMahon, Robert J.; Spieker, Susan J.

    2008-01-01

    We examined the extent to which infant attachment status is directly related to child conduct problems 6 years later, and assessed the potential mediating roles of hostile parenting and maternal depression. The sample included 84 adolescent mothers and their children (45 girls, 39 boys). Infant attachment status was assessed using the Strange…

  20. Effects of attachment and rearing behavior on anxiety in normal developing youth

    DEFF Research Database (Denmark)

    Breinholst, Sonja; Esbjørn, Barbara Hoff; Reinholdt-Dunne, Marie Louise

    2015-01-01

    the direct, as well as the indirect, relation between attachment to parents, parental rearing behaviors and anxiety symptoms in a sample of 1134 normal developing children and adolescent. Attachment relation was measured by the Security Scale (SEC), negative parental rearing behavior was measured...

  1. Examining Attachment to God and Health Risk-Taking Behaviors in College Students

    NARCIS (Netherlands)

    Barrett, J.; Horton, K.D.; Ellison, Ch.G.; Loukas, A.; Downey, D.L.

    2012-01-01

    Drawing on insights from attachment theory, this study examined whether three types of attachment to God—secure, avoidant, and anxious—were associated with health-risk behaviors, over and above the effects of religious attendance, peer support, and demographic covariates, in a sample of 328 undergra

  2. Adult Attachment States of Mind: Measurement Invariance across Ethnicity and Associations with Maternal Sensitivity

    Science.gov (United States)

    Haltigan, John D.; Leerkes, Esther M.; Wong, Maria S.; Fortuna, Keren; Roisman, Glenn I.; Supple, Andrew J.; O'Brien, Marion; Calkins, Susan D.; Plamondon, André

    2014-01-01

    This study examined the developmental significance of mothers' adult attachment representations assessed prenatally with the Adult Attachment Interview in relation to observed maternal sensitivity at 6 months postpartum in an ethnically diverse sample (N = 131 African American; N = 128 European American). Multiple-group confirmatory factor…

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

    Science.gov (United States)

    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…

  4. Association between Adult Romantic Attachment Styles and Family-of-Origin Expressive Atmosphere

    Science.gov (United States)

    Smith, Shannon D.; Ng, Kok-Mun

    2009-01-01

    This study examined the associations between attachment quality and perceived family-of-origin expressive atmosphere (FOEA) in a convenience sample of 279 participants. Multivariate analysis of variance (MAN-OVA) was used to examine the associations between attachment style and FOEA, and hierarchical regression was used to analyze FOEA as a…

  5. Peer Attachment, Coping, and Self-Esteem in Institutionalized Adolescents: The Mediating Role of Social Skills

    Science.gov (United States)

    Mota, Catarina Pinheiro; Matos, Paula Mena

    2013-01-01

    This study analyzes the contribution of peer attachment in predicting active coping and self-esteem in a sample of 109 institutionalized adolescents. It also explores the mediating role of social skills in the association between peer attachment, coping, and self-esteem. Structural equation modeling identified a model able to predict a positive…

  6. Parental Attachment, Psychological Separation and Eating Disorder Symptoms among College Women.

    Science.gov (United States)

    Kenny, Maureen E.

    In this study the relationship of parental attachment and psychological separation to levels of eating disorder symptoms was examined for a sample of college women (N=162) from English classes at a private, urban, coeducational Jesuit university in the northeast. Participants resonded to the Parental Attachment Questionnaire, the Parental…

  7. Conflict Management with Friends and Romantic Partners: The Role of Attachment and Negative Mood Regulation Expectancies.

    Science.gov (United States)

    Creasey, Gary; Kershaw, Kathy; Boston, Ada

    1999-01-01

    Studied the degree to which attachment orientations were related to negative mood regulation expectancies and conflict management strategies with best friends and romantic partners in a sample of 140 female college students. Discusses results in relation to previous research on attachment theory and implications for interventions. (SLD)

  8. Adaptive and Maladaptive Perfectionism as Mediators of Adult Attachment Styles and Depression, Hopelessness, and Life Satisfaction

    Science.gov (United States)

    Gnilka, Philip B.; Ashby, Jeffrey S.; Noble, Christina M.

    2013-01-01

    This study examined the relationships between adaptive and maladaptive perfectionism, anxious and avoidant adult attachment styles, depression, hopelessness, and life satisfaction among a sample of 180 undergraduate students. Maladaptive perfectionism mediated the relationship between both forms of adult attachment and depression, hopelessness,…

  9. Attachment Theory and Theory of Planned Behavior: An Integrative Model Predicting Underage Drinking

    Science.gov (United States)

    Lac, Andrew; Crano, William D.; Berger, Dale E.; Alvaro, Eusebio M.

    2013-01-01

    Research indicates that peer and maternal bonds play important but sometimes contrasting roles in the outcomes of children. Less is known about attachment bonds to these 2 reference groups in young adults. Using a sample of 351 participants (18 to 20 years of age), the research integrated two theoretical traditions: attachment theory and theory of…

  10. Development of WAIS-III General Ability Index Minus WMS-III memory discrepancy scores.

    Science.gov (United States)

    Lange, Rael T; Chelune, Gordon J; Tulsky, David S

    2006-09-01

    Analysis of the discrepancy between intellectual functioning and memory ability has received some support as a useful means for evaluating memory impairment. In recent additions to Wechlser scale interpretation, the WAIS-III General Ability Index (GAI) and the WMS-III Delayed Memory Index (DMI) were developed. The purpose of this investigation is to develop base rate data for GAI-IMI, GAI-GMI, and GAI-DMI discrepancy scores using data from the WAIS-III/WMS-III standardization sample (weighted N = 1250). Base rate tables were developed using the predicted-difference method and two simple-difference methods (i.e., stratified and non-stratified). These tables provide valuable data for clinical reference purposes to determine the frequency of GAI-IMI, GAI-GMI, and GAI-DMI discrepancy scores in the WAIS-III/WMS-III standardization sample.

  11. Attachment styles and self-concept: basis for positive adolescence

    Directory of Open Access Journals (Sweden)

    Valeria S. Martínez Festorazzi

    2015-08-01

    Full Text Available The nature and characteristics of the primary bonds and attachment styles wwhich are established with parental figures and / or their surrogates in the first years of life, without doubt are one of the basis and models for later relationships. Intense changes will be produce particularly during adolescence in the parental bonds and the scenario, which defines and reinforces personal autonomy to be extended. In this way, self-concept is probably one of the most researched constructs in psychological tradition if we compare it with other psychological and contextual variables. Nevertheless, a few studies explore especially the relationship between attachment and self-concept in adolescents. The aim of this empirical study was to analyze the relationship between attachment styles and self-concept dimensions in adolescents, from a salutogenic approach in order to identify if certain attachment characteristics are associated with more positive aspects of self-concept. A sample of 583 adolescents aged 15- 18 years from public and private schools in Mar del Plata completed the AF5 and IPPA scales. Significant positive relationships were confirmed between secure attachment style and self- concept dimensions. These results provide empirical support to advance in the research about which characteristics are specifically related to positive and healthy development in adolescents. 

  12. Religious commitment, adult attachment, and marital adjustment in newly married couples.

    Science.gov (United States)

    Lopez, Jamie L; Riggs, Shelley A; Pollard, Sara E; Hook, Joshua N

    2011-04-01

    Existing literature on the role of religiosity in marital functioning is often difficult to interpret due to the frequent use of convenience samples, statistical approaches inadequate for interdependent dyadic data, and the lack of a theoretical framework. The current study examined the effects of religious commitment and insecure attachment on marital adjustment. Newly married couples who did not have children (N = 92 couples, 184 individuals) completed measures of religious commitment, adult attachment, and marital functioning. There was a small positive association between religious commitment and marital adjustment. Religious commitment buffered the negative association between attachment avoidance and marital adjustment, but exacerbated the negative association between attachment anxiety and marital adjustment.

  13. Column solid phase extraction and flame atomic absorption spectrometric determination of manganese(II) and iron(III) ions in water, food and biological samples using 3-(1-methyl-1H-pyrrol-2-yl)-1H-pyrazole-5-carboxylic acid on synthesized graphene oxide

    Energy Technology Data Exchange (ETDEWEB)

    Pourjavid, Mohammad Reza, E-mail: pourjavid@gmail.com [NFCRS, Nuclear Science and Technology Research Institute, P.O. Box 11365-8486, Tehran (Iran, Islamic Republic of); Sehat, Ali Akbari [Department of Analytical Chemistry, Faculty of Chemistry, University College of Science, University of Tehran, P.O. Box 14155-6455, Tehran (Iran, Islamic Republic of); Arabieh, Masoud; Yousefi, Seyed Reza; Hosseini, Majid Haji; Rezaee, Mohammad [NFCRS, Nuclear Science and Technology Research Institute, P.O. Box 11365-8486, Tehran (Iran, Islamic Republic of)

    2014-02-01

    A modified, selective, highly sensitive and accurate procedure for the determination of trace amounts of manganese and iron ions is established in the presented work. 3-(1-Methyl-1H-pyrrol-2-yl)-1H-pyrazole-5-carboxylic acid (MPPC) and graphene oxide (GO) were used in a glass column as chelating reagent and as adsorbent respectively prior to their determination by flame atomic absorption spectrometry. The adsorption mechanism of titled metals complexes on GO was investigated by using computational chemistry approach based on PM6 semi-empirical potential energy surface (PES). The effect of some parameters including pH, flow rate and volume of sample and type, volume and concentration of eluent, as well as the adsorption capacity of matrix ions on the recovery of Mn(II) and Fe(III) was investigated. The limit of detection was 145 and 162 ng L{sup −1} for Mn(II) and Fe(III), respectively. Calibration was linear over the range of 0.31–355 μg L{sup −1} for Mn(II) and 0.34–380 μg L{sup −1} for Fe(III) ions. The method was successfully applied for the determination of understudied ions in water, food and biological samples. - Highlights: • We use synthesized graphene oxide as adsorbent for SPE of Mn(II) and Fe(III) ions. • Adsorption mechanism was investigated by PM6 semi-empirical potential energy surface. • Detection limits were 145 and 162 ng L{sup −1} for Mn and Fe, respectively. • The preconcentration factor was 325 and sample flow rate is 8 mL min{sup −1}. • It was successfully applied to the determination of Mn and Fe ions in real samples.

  14. Effect of hot water spray on broiler carcasses for reduction of loosely attached, intermediately attached, and tightly attached pathogenic (Salmonella and Campylobacter) and mesophilic aerobic bacteria.

    Science.gov (United States)

    Zhang, L; Singh, P; Lee, H C; Kang, I

    2013-03-01

    Chickens are known to harbor many bacteria, including pathogenic microorganisms such as Salmonella and Campylobacter. The objective of this study was to evaluate the efficacy of hot water spray (HWS, 71°C for 1 min) in reducing bacterial contamination of prechilled broiler carcasses. For each of 4 replications, skin samples from 5 broilers were collected at 3 processing stages: after bleeding (feathers removed manually), after evisceration (with/without HWS), and after water chilling. Broiler skin was quantitatively assessed for loosely attached (by rinsing the skin), intermediately attached (by stomaching the rinsed skin), and tightly attached (by grinding the rinsed/stomached skin) mesophilic aerobic bacteria (MAB) and Campylobacter as well as for the prevalence of Salmonella and Campylobacter. Broiler skins possessed 6.4 to 6.6 log cfu/g, 3.8 to 4.1 log cfu/g, and 2.8 to 3.5 log cfu/g of MAB populations after bleeding, evisceration, and chilling, respectively. The HWS resulted in more than 1 log unit of reduction in MAB immediately after evisceration and immediately after chilling regardless of microbial sampling method. Compared with MAB, the contamination of Campylobacter was low (1.7 to 2.6 log cfu/g) after bleeding, but the level was not reduced throughout the processing steps regardless of HWS. The application of HWS reduced the prevalence of Salmonella after chilling, but not for Campylobacter except for loosely attached cells. After hot water exposure, a partially cooked appearance was seen on both broiler skin and skinless breast surface. More research is required to effectively eliminate pathogenic organisms during processing and suppress any recovery of bacteria regardless of attachment type after chilling.

  15. Attachment style and its relationship to working alliance in the supervision of British clinical psychology trainees.

    Science.gov (United States)

    Dickson, Joanne M; Moberly, Nicholas J; Marshall, Yehuda; Reilly, James

    2011-01-01

    Although the supervisory relationship is thought to be critical in training clinical psychologists, little is known about factors affecting the supervisory alliance. We conducted an Internet survey of British clinical doctoral trainees (N = 259) in which participants rated their supervisory working alliance, parental style during childhood, pathological adult attachment behaviours and attachment style for themselves and their supervisors. Trainees' ratings of the working alliance were associated with perceptions of supervisors' attachment style, but not with perceptions of trainees' own attachment styles. Path analysis supported a causal chain linking parental indifference, compulsive self-reliance, insecure supervisor attachment style and lower ratings of the working alliance. Our results broadly replicate data from a US sample and suggest that attachment theory is helpful in understanding clinical supervisory processes.

  16. Disorganized attachment representation and atypical parenting in young school age children with externalizing disorder.

    Science.gov (United States)

    Green, Jonathan; Stanley, Charlie; Peters, Sarah

    2007-09-01

    We investigated the relationship of child attachment representation, psychopathology, and maternal atypical parenting in a high risk sample. Sixty-one consecutive clinical referrals with externalizing disorder aged 4 - 9 years were assessed for attachment representations measured with Manchester Child Attachment Story Task (MCAST), atypical parental expressed emotion (EE), maternal mood, and parent and teacher ratings of child behaviour. Disorganized attachment representations were found in 58% of cases, independent of ADHD symptoms. Pervasive disorganization was associated with very high maternal EE. Attachment status, maternal depression, and ADHD diagnosis were independently associated with parent-rated child behaviour problems; teacher ratings were associated with child's age and ADHD status. Disorganized attachment shows a high prevalence and independent associations with attention deficit symptomatology and maternal EE.

  17. Brazilian Adaptation of the Woodcock-Johnson III Cognitive Tests

    Science.gov (United States)

    Wechsler, Solange Muglia; Nunes, Carlos Sancineto; Schelini, Patricia Waltz; Pasian, Sonia Regina; Homsi, Silvia Vertoni; Moretti, Lucia; Anache, Alexandra Ayach

    2010-01-01

    An adaptation of the standard battery of Woodcock-Johnson III Tests of Cognitive Abilities (WJ-III) for Brazilian children and youth was investigated. The sample was composed of 1094 students (54 percent girls), ages 7-17, living in Sao Paulo state (91 percent). Items from Brazilian school books as well as from the WJ-III Spanish version…

  18. Wear simulation effects on overdenture stud attachments.

    Science.gov (United States)

    Rutkunas, Vygandas; Mizutani, Hiroshi; Takahashi, Hidekazu; Iwasaki, Naohiko

    2011-01-01

    The aim of this study was to evaluate wear effects on overdenture resilient attachments. Six commercially available attachments were investigated: ERA orange and white (EO and EW), Locator pink, white and blue (LRP, LRW and LRB) and OP anchor (OP). Five specimens were used for wear simulation while other two specimens served as controls. Fifteen thousands insertion-removal cycles were simulated. Dimensional changes and surface characteristics were evaluated using light microscopy and SEM, respectively. Sudden decrease of retentive force was characteristic for EO and EW attachments. Retentive force of Locator attachments fluctuated throughout the wear simulation period. Dimensional changes and surface wear was more expressed on plastic cores than on plastic rings of attachment males. Based on SEM analysis, some of the specimens obtained smoother surface after wear simulation. Mechanism of retention loss of resilient overdenture attachments can be only partially explained by dimensional changes and surface alterations.

  19. Association Between Insecure Attachment and ADHD

    DEFF Research Database (Denmark)

    Storebo, Ole Jakob; Darling Rasmussen, Pernille; Simonsen, Erik

    2016-01-01

    Objective: Psychological theories have postulated an association between insecure attachment and ADHD. The objective of this study is to investigate possible association between insecure attachment and ADHD in children and adults. Method: Review of literature was performed using the Psyc......INFO, Medline, and EMBASE databases. Results: Twenty-nine studies were included in the review. Overall, the studies showed that parental attachment problems and environmental mediating factors were significantly associated with childhood ADHD. Adults with ADHD had a much higher incidence of insecure attachment...... styles than reported in the general population. Conclusion: There seems to be a clear association between ADHD and insecure attachment. It is likely that early intervention in the form of parent training and pharmacological treatment may prevent development of attachment problems. But such studies have...

  20. Emergence of tempered preferential attachment from optimization

    OpenAIRE

    D'Souza, Raissa M.; Borgs, Christian; Chayes, Jennifer T.; Berger, Noam; Kleinberg, Robert D.

    2007-01-01

    We show how preferential attachment can emerge in an optimization framework, resolving a long-standing theoretical controversy. We also show that the preferential attachment model so obtained has two novel features, saturation and viability, which have natural interpretations in the underlying network and lead to a power-law degree distribution with exponential cutoff. Moreover, we consider a generalized version of this preferential attachment model with independent saturation and viability, ...

  1. The effects of attachment components on formal-operational thinking

    Directory of Open Access Journals (Sweden)

    Vukčević Branimir

    2010-01-01

    Full Text Available In this work our aim is to examine how the components of attachment influence the thinking development of adolescents in familial context. We investigated the components of attachment: unresolved family traumatisation, the use of external security base, fear of loss of external security base, negative self concept, negative other concept, capacity for mentalisation, low control of anger. We used a revised Questionnaire for Assessment of Adult and Adolescent Attachment (in original: UPIPAV-R. Formal operations were tested by Bond's Logical Operations Test. We examined the cultural-pedagogical status of the family, the parental mediation characteristic for the development of formal operations, and family property as the aspects of familial context. The sample consisted of 200 pupils aged 14 to 19. According to the attachment theory, secure attachment provides the feel of security in environment exploration, which is the ground of personality development. We assumed that components of attachment contribute formal-operational thinking development and change the influence of familial cultural-supportive tools. The findings show us that the culturalpedagogical status of the family improves formal operations development and unresolved family traumatisation has negative influence. Capacity for mentalisation has a positive indirect effect on thinking development through the influence of the cultural-pedagogical status of the family. The low control of anger has a negative indirect effect on thinking development; it increases the influence of unresolved family traumatisation. Negative self concept has indirect effects on thinking development through increasing this negative influence of unresolved family traumatisation and decreasing the role of familial cultural-supportive tools.

  2. Column solid phase extraction and flame atomic absorption spectrometric determination of manganese(II) and iron(III) ions in water, food and biological samples using 3-(1-methyl-1H-pyrrol-2-yl)-1H-pyrazole-5-carboxylic acid on synthesized graphene oxide.

    Science.gov (United States)

    Pourjavid, Mohammad Reza; Sehat, Ali Akbari; Arabieh, Masoud; Yousefi, Seyed Reza; Hosseini, Majid Haji; Rezaee, Mohammad

    2014-02-01

    A modified, selective, highly sensitive and accurate procedure for the determination of trace amounts of manganese and iron ions is established in the presented work. 3-(1-Methyl-1H-pyrrol-2-yl)-1H-pyrazole-5-carboxylic acid (MPPC) and graphene oxide (GO) were used in a glass column as chelating reagent and as adsorbent respectively prior to their determination by flame atomic absorption spectrometry. The adsorption mechanism of titled metals complexes on GO was investigated by using computational chemistry approach based on PM6 semi-empirical potential energy surface (PES). The effect of some parameters including pH, flow rate and volume of sample and type, volume and concentration of eluent, as well as the adsorption capacity of matrix ions on the recovery of Mn(II) and Fe(III) was investigated. The limit of detection was 145 and 162 ng L(-1) for Mn(II) and Fe(III), respectively. Calibration was linear over the range of 0.31-355 μg L(-1) for Mn(II) and 0.34-380 μg L(-1) for Fe(III) ions. The method was successfully applied for the determination of understudied ions in water, food and biological samples. PMID:24411390

  3. Attachment theory: Old and new approach

    Directory of Open Access Journals (Sweden)

    Polovina Nada

    2005-01-01

    Full Text Available The article is an attempt to present holistically the key concepts of attachment theory rediscovered for its potentials. The presented concepts include: narrow definition of attachment, behavioral control system of attachment, attachment working model and patterns of attachment. The concepts are presented in the context of child attachment theory and adult attachment theory, in addition to description of the development of attachment. Concepts, as well as developmental processes are presented from the stand point of pioneers in this field (John Bowlby and Mary Ainsworth as well as from the standpoint of their successors (Everett Waters and Malcolm West. Compacted ness of the theory, possibilities for operationalization of its key concepts and its application to empirical studies of complex psychological issues that have never been scientifically explored, makes it a very prospective theory in view of possible integration of existing research findings and initiating new research and new practices in psychotherapy, social work and work in schools. The goal of this integral presentation of attachment theory is to highlight its benefits and possibilities for understanding and research complex field of human's psychosocial functioning.

  4. Oxytocin enhances the experience of attachment security

    Science.gov (United States)

    Buchheim, Anna; Heinrichs, Markus; George, Carol; Pokorny, Dan; Koops, Eva; Henningsen, Peter; O’Connor, Mary-Frances; Gundel, Harald

    2011-01-01

    Summary Repeated interactions between infant and caregiver result in either secure or insecure relationship attachment patterns, and insecure attachment may affect individual emotion-regulation and health. Given that oxytocin enhances social approach behavior in animals and humans, we hypothesized that oxytocin might also promote the experience of attachment security in humans. Within a 3-week interval 26 healthy male students classified with an insecure attachment pattern were invited twice to an experimental session. Within each session, a single dose of oxytocin or placebo was administered, using a double-blind, placebo-controlled within-subject design. In both conditions, subjects completed an attachment task based on the Adult Attachment Projective Picture System (AAP). Thirty-two AAP picture system presentations depicted attachment-related events (e.g. illness, solitude, separation, loss), and were each accompanied by four prototypical phrases representing one secure and three insecure attachment categories. In the oxytocin condition, a significant proportion of these insecure subjects (N = 18; 69%) changed their rankings of “secure attachment” phrases towards the more appropriate for the AAP picture presentation, and the same subjects decreased in overall rating of the “insecure attachment” phrases. In particular, there was a significant decrease in the number of subjects ranking the pictures with “insecure-preoccupied” phrases from the placebo to the oxytocin condition. We find that a single dose of intranasally administered oxytocin is sufficient to induce a significant increase in the experience of attachment security in adults classified previously as insecure. PMID:19457618

  5. Sine-Bar Attachment For Machine Tools

    Science.gov (United States)

    Mann, Franklin D.

    1988-01-01

    Sine-bar attachment for collets, spindles, and chucks helps machinists set up quickly for precise angular cuts that require greater precision than provided by graduations of machine tools. Machinist uses attachment to index head, carriage of milling machine or lathe relative to table or turning axis of tool. Attachment accurate to 1 minute or arc depending on length of sine bar and precision of gauge blocks in setup. Attachment installs quickly and easily on almost any type of lathe or mill. Requires no special clamps or fixtures, and eliminates many trial-and-error measurements. More stable than improvised setups and not jarred out of position readily.

  6. Attachment fixation of the overdenture: part II.

    Science.gov (United States)

    Mensor, M C

    1978-01-01

    Many attachment systems of the bar or stud type increase the stability of an overdenture. When selecting an attachment it is essential to consider the skill of the dentist-laboratory team as well as the dexterity of the patient and to use the easiest system that will still improve stabilization. Generally simplicity in design, ease of maintenance, and minimum leverage should be paramount considerations in selection. Use of a guide such as the EM Gauge and of the EM Attachment Selector significantly reduces the confusion in selecting attachments and increases the working armamentarium for stabilizing an overdenture. PMID:340660

  7. Overdenture locator attachments for atrophic mandible.

    Science.gov (United States)

    Mahajan, Neerja; Thakkur, Rahul K

    2013-10-01

    Implant-supported overdentures provide a good opportunity for dentists to improve oral health and quality-of-life of patients. Atrophic mandible poses a significant challenge to successful oral rehabilitation with dental implants. In this article, the fabrication of lower overdenture by two narrow platform implants is described with dual retentive, resilient, self-locating locator attachment system. The locator attachment system has the lowest profile in comparison with the ball and bar attachments and is versatile up to 40° of divergence between two implants. By using locators as attachments, we can meet functional, economic and social expectation of patients with ease and satisfaction.

  8. Overdenture locator attachments for atrophic mandible

    Directory of Open Access Journals (Sweden)

    Neerja Mahajan

    2013-01-01

    Full Text Available Implant-supported overdentures provide a good opportunity for dentists to improve oral health and quality-of-life of patients. Atrophic mandible poses a significant challenge to successful oral rehabilitation with dental implants. In this article, the fabrication of lower overdenture by two narrow platform implants is described with dual retentive, resilient, self-locating locator attachment system. The locator attachment system has the lowest profile in comparison with the ball and bar attachments and is versatile up to 40΀ of divergence between two implants. By using locators as attachments, we can meet functional, economic and social expectation of patients with ease and satisfaction.

  9. Frightened Versus Not Frightened Disorganized Infant Attachment: Newborn Characteristics and Maternal Caregiving

    OpenAIRE

    Padrón, Elena; Carlson, Elizabeth A.; Sroufe, L. Alan

    2014-01-01

    The disorganized infant has been described as experiencing “fright without solution” (Hesse & Main, 1999, p. 484) within the attachment relationship. Using a sample at risk because of poverty (n=157), this study evaluated the role of newborn characteristics in predicting disorganized attachment and explored the existence of two subgroups of disorganized infants, based on whether they display direct indices of fear. For the entire sample, regression analyses revealed that newborn characteristi...

  10. The Relationship between Parenting Styles and Adult Attachment Styles from Jordan University Students

    OpenAIRE

    Mahasneh, Ahmad M; Zohair H. Al-Zoubi; Omar T. Batayenh; Jawarneh, Mohammad S.

    2013-01-01

    The purpose of this study was to examine the relationship between parenting styles and adult attachment styles. A random sample of (564) male and female students at the faculty of educational sciences was chosen selected. Two questionnaires on attachment styles and parenting styles were administered to the selected sample population during the academic year of 2012-2013. Results indicated significant positive correlations between the authoritative, negligent and authoritarian parenting styles...

  11. The Role of Depression and Attachment Styles in Predicting Students’ Addiction to Cell Phones

    OpenAIRE

    Ghasempour, Abdollah; Mahmoodi-Aghdam, Mansour

    2015-01-01

    Background The present study aimed at investigating the role of depression and attachment styles in predicting cell phone addiction. Methods In this descriptive correlational study, a sample including 100 students of Payame Noor University (PNU), Reyneh Center, Iran, in the academic year of 2013-2014 was selected using volunteer sampling. Participants were asked to complete the adult attachment inventory (AAI), Beck depression inventory-13 (BDI-13) and the cell phone overuse scale (COS). Find...

  12. Simplistic Attachment and Multispectral Imaging with Semiconductor Nanocrystals

    Directory of Open Access Journals (Sweden)

    Sara G. Becker-Catania

    2011-11-01

    Full Text Available Advances in spectral deconvolution technologies are rapidly enabling researchers to replace or enhance traditional epifluorescence microscopes with instruments capable of detecting numerous markers simultaneously in a multiplexed fashion. While significantly expediting sample throughput and elucidating sample information, this technology is limited by the spectral width of common fluorescence reporters. Semiconductor nanocrystals (NC’s are very bright, narrow band fluorescence emitters with great potential for multiplexed fluorescence detection, however the availability of NC’s with facile attachment chemistries to targeting molecules has been a severe limitation to the advancement of NC technology in applications such as immunocytochemistry and immunohistochemistry. Here we report the development of simple, yet novel attachment chemistries for antibodies onto NC’s and demonstrate how spectral deconvolution technology enables the multiplexed detection of 5 distinct NC-antibody conjugates with fluorescence emission wavelengths separated by as little as 20 nm.

  13. The role of both parents' attachment pattern in understanding childhood obesity.

    Science.gov (United States)

    Mazzeschi, Claudia; Pazzagli, Chiara; Laghezza, Loredana; Radi, Giulia; Battistini, Dalila; De Feo, Pierpaolo

    2014-01-01

    Within the research area on the determinants of childhood obesity, a relatively new approach is the use of attachment theory to explore the mechanisms underlying children's obesity risk, especially considered as emotion regulation strategies in parent-child relationship. Few are the empirical researches that have addressed this issue. The empirical investigations have used self-report measures to assess adult attachment. In attachment studies, the use of interview methods and/or performance-based instruments is advised to evaluate the entire range of possible adult attachment patterns and comprehensively explain the emotional strategies, correlates, and consequences of individual differences in attachment system functioning. The aim of this study was to explore the extent to which both parents' attachment patterns serve as self-regulative mechanisms related to childhood overweight/obesity by the Adult Attachment Projective Picture System (AAP) in a sample of 44 mothers and fathers of children referred for obesity. Insecure attachment was found as a risk factor both for mothers and fathers. Also unresolved/disorganization was found to play a significant role in childhood obesity. The role of father's attachment was explored and findings suggested considering it in etiology and treatment of childhood obesity.

  14. The role of illness perceptions in the attachment-related process of affect regulation.

    Science.gov (United States)

    Vilchinsky, Noa; Dekel, Rachel; Asher, Zvia; Leibowitz, Morton; Mosseri, Morris

    2013-01-01

    Based on the predictions of the attachment theory and the Common Sense Model of illness perceptions, the current study focused on the role played by illness perceptions in explaining the path linking attachment orientations to negative affect during recovery from cardiac illness. We predicted two putative mechanisms: (1) illness perceptions would mediate the direct association between attachment-related insecurity (especially attachment anxiety) and levels of distress at follow-up and (2) illness perceptions would interact with attachment orientations (attachment avoidance in particular) in explaining patients' distress. The sample consisted of 111 male patients admitted to the Cardiac Care Unit of the Meir Medical Center, located in the central region of Israel. Patients completed a measure of attachment orientations during hospitalization (baseline). One month later, patients' illness perceptions were measured. Patients' depression and anxiety symptoms were measured at baseline and at the six-month follow-up. The associations between attachment-related anxiety and anxiety symptoms at follow-up were fully mediated by illness perceptions. Attachment-related avoidance was found to interact with illness perceptions in the prediction of depressive symptoms at follow-up. The findings shed light on the possible dynamics among personality, cognitive appraisals, and affect regulation efforts when coping with illness.

  15. The relationship of adult attachment to emotion, catastrophizing, control, threshold and tolerance, in experimentally-induced pain.

    Science.gov (United States)

    Meredith, Pamela J; Strong, Jenny; Feeney, Judith A

    2006-01-01

    Although insecure attachment has been associated with a range of variables linked with problematic adjustment to chronic pain, the causal direction of these relationships remains unclear. Adult attachment style is, theoretically, developmentally antecedent to cognitions, emotions and behaviours (and might therefore be expected to contribute to maladjustment). It can also be argued, however, that the experience of chronic pain increases attachment insecurity. This project examined this issue by determining associations between adult attachment characteristics, collected prior to an acute (coldpressor) pain experience, and a range of emotional, cognitive, pain tolerance, intensity and threshold variables collected during and after the coldpressor task. A convenience sample of 58 participants with no history of chronic pain was recruited. Results demonstrated that attachment anxiety was associated with lower pain thresholds; more stress, depression, and catastrophizing; diminished perceptions of control over pain; and diminished ability to decrease pain. Conversely, secure attachment was linked with lower levels of depression and catastrophizing, and more control over pain. Of particular interest were findings that attachment style moderated the effects of pain intensity on the tendency to catastrophize, such that insecurely attached individuals were more likely to catastrophize when reporting high pain intensity. This is the first study to link attachment with perceptions of pain in a pain-free sample. These findings cast anxious attachment as a vulnerability factor for chronic pain following acute episodes of pain, while secure attachment may provide more resilience. PMID:16359795

  16. Sensitivity and specificity of WAIS-III/WMS-III demographically corrected factor scores in neuropsychological assessment.

    Science.gov (United States)

    Taylor, M J; Heaton, R K

    2001-11-01

    This study explored the neurodiagnostic utility of 6 factor scores identified by recent exploratory and confirmatory factor analyses of the WAIS-III and WMS-III: Verbal Comprehension, Perceptual Organization, Processing Speed, Working Memory, Auditory Memory and Visual Memory. Factor scores were corrected for age. education, sex and ethnicity to minimize their influences on diagnostic accuracy. Cut-offs at 1, 1.5 and 2 standard deviations (SDs) below the standardization sample mean were applied to data from the overlapping test normative samples (N = 1073) and 6 clinical samples described in the WAIS-III/WMS-III Technical Manual (N = 126). The analyses suggest that a I SD cut-off yields the most balanced levels of sensitivity and specificity; more strict (1.5 or 2 SD) cut-offs generally result in trading modest gains in specificity for larger losses in sensitivity. Finally, using combinations of WAIS-III/WMS-III factors together as test batteries, we explored the sensitivity and specificity implications of varying diagnostic decision rules (e.g.,1 vs. 2 impaired factors = "impairment"). For most of the disorders considered here, even a small (e.g., 3 factor) WAIS-III/WMS-III battery provides quite good overall diagnostic accuracy.

  17. Biliprotein maturation: the chromophore attachment.

    Science.gov (United States)

    Scheer, H; Zhao, K-H

    2008-04-01

    Biliproteins are a widespread group of brilliantly coloured photoreceptors characterized by linear tetrapyrrolic chromophores, bilins, which are covalently bound to the apoproteins via relatively stable thioether bonds. Covalent binding stabilizes the chromoproteins and is mandatory for phycobilisome assembly; and, it is also important in biliprotein applications such as fluorescence labelling. Covalent binding has, on the other hand, also considerably hindered biliprotein research because autocatalytic chromophore additions are rare, and information on enzymatic addition by lyases was limited to a single example, an EF-type lyase attaching phycocyanobilin to cysteine-alpha84 of C-phycocyanin. The discovery of new activities for the latter lyases, and of new types of lyases, have reinvigorated research activities in the subject. So far, work has mainly concentrated on cyanobacterial phycobiliproteins. Methodological advances in the process, however, as well as the finding of often large numbers of homologues, opens new possibilities for research on the subsequent assembly/disassembly of the phycobilisome in cyanobacteria and red algae, on the assembly and organization of the cryptophyte light-harvesting system, on applications in basic research such as protein folding, and on the use of phycobiliproteins for labelling.

  18. Coexistence in preferential attachment networks

    CERN Document Server

    Antunović, Tonći; Racz, Miklos Z

    2013-01-01

    Competition in markets is ubiquitous: cell-phone providers, computer manufacturers, and sport gear brands all vie for customers. Though several coexisting competitors are often observed in empirical data, many current theoretical models of competition on small-world networks predict a single winner taking over the majority of the network. We introduce a new model of product adoption that focuses on word-of-mouth recommendations to provide an explanation for this coexistence of competitors. The key property of our model is that customer choices evolve simultaneously with the network of customers. When a new node joins the network, it chooses neighbors according to preferential attachment, and then chooses its type based on the number of initial neighbors of each type. This can model a new cell-phone user choosing a cell-phone provider, a new student choosing a laptop, or a new athletic team member choosing a gear provider. We provide a detailed analysis of the new model; in particular, we determine the possibl...

  19. Hamiltonian dynamics of preferential attachment

    International Nuclear Information System (INIS)

    Prediction and control of network dynamics are grand-challenge problems in network science. The lack of understanding of fundamental laws driving the dynamics of networks is among the reasons why many practical problems of great significance remain unsolved for decades. Here we study the dynamics of networks evolving according to preferential attachment (PA), known to approximate well the large-scale growth dynamics of a variety of real networks. We show that this dynamics is Hamiltonian, thus casting the study of complex networks dynamics to the powerful canonical formalism, in which the time evolution of a dynamical system is described by Hamilton’s equations. We derive the explicit form of the Hamiltonian that governs network growth in PA. This Hamiltonian turns out to be nearly identical to graph energy in the configuration model, which shows that the ensemble of random graphs generated by PA is nearly identical to the ensemble of random graphs with scale-free degree distributions. In other words, PA generates nothing but random graphs with power-law degree distribution. The extension of the developed canonical formalism for network analysis to richer geometric network models with non-degenerate groups of symmetries may eventually lead to a system of equations describing network dynamics at small scales. (paper)

  20. Measuring Patients’ Attachment Avoidance in Psychotherapy: Development of the Attachment Avoidance in Therapy Scale (AATS

    Directory of Open Access Journals (Sweden)

    András Láng

    2012-11-01

    Full Text Available A new scale measuring patient-therapist attachment avoidance was developed. Attachment Avoidance in Therapy Scale is a new measure based on the Bartholomew model of adult attachment (Bartholomew & Horowitz, 1991 and the Experience in Close Relationships Scale (Brennan, Clark, & Shaver, 1998 to measure patients’ attachment avoidance towards therapists. With 112 patient-therapist dyads participating in the study, validation of a preliminary scale – measuring both attachment anxiety and attachment avoidance in therapy – took place using therapists’ evaluations of patients’ relational behavior and patients’ self-reports about their attitude toward psychotherapy. Analysis of the data revealed six underlying scales. Results showed all six scales to be reliable. Validation of scales measuring attachment anxiety failed. The importance of Attachment Avoidance in Therapy Scale and its subscales is discussed.

  1. An Attachment Model of University Connectedness

    Science.gov (United States)

    Wilson, Steffen; Gore, Jonathan

    2013-01-01

    Students with high levels of connectedness to the university have been found to be more likely to complete their college degree than are students with low levels of university connectedness. This study examined the role of parental and peer attachment as distal predictors of school connectedness. As predicted, it was found that attachment style to…

  2. An Attachment Perspective on Anger among Adolescents

    Science.gov (United States)

    Konishi, Chiaki; Hymel, Shelley

    2014-01-01

    Extending John Bowlby's hypothesis that dysfunctional anger is a predictable outcome of insecure attachments to parents, this study investigated the relationship between current parent-adolescent attachment and both the experience and expression of anger. Participants included 776 students (379 boys and 397 girls) in grades 8-12. As predicted…

  3. Attachment, emotion regulation and adult crying

    NARCIS (Netherlands)

    Maas, J.; Laan, A.; Vingerhoets, A.J.J.M.

    2011-01-01

    Attachment serves to facilitate the contact with and proximity to the primary caregiver, in that way contributing to a safe exploration of the environment. However, due to inconsistencies in the reaction of the caregiver or her/his absence, insecure attachment styles may develop. This chapter summar

  4. Attachment of Salmonella spp. to pork meat

    DEFF Research Database (Denmark)

    Hansen, Trine; Riber, Leise; Löfström, Charlotta;

    2011-01-01

    Five strains of Salmonella, one wildtype and four knock-out mutants (the prg, flhDC, yhjH and fliC genes) were investigated based on their probability to attach and subsequently detach from a surface of pork fillet. The attachment followed by detachment was measured and modelled for two different...

  5. Attachment and Socioemotional Problems in Middle Childhood

    Science.gov (United States)

    Moss, Ellen; Lecompte, Vanessa

    2015-01-01

    In this article, we will evaluate the evidence concerning links between attachment and behavior problems in the middle childhood period. We will first provide a general introduction to the question of attachment and maladaptation in the middle childhood period, and then examine the recent empirical evidence with respect to both externalizing and…

  6. Attachment and Dependency in Developmental Perspective.

    Science.gov (United States)

    Sroufe, L. Alan; And Others

    1983-01-01

    Distinguishes between attachment (the relationship between infant and caregiver) and dependency (the reliance of the child on adults for nurturance, attention, or assistance). Assesses preschool children with varying attachment histories and suggests that the roots of overdependency lie in the quality of the early infant-caregiver relationship.…

  7. Attachment Theory Applied to Juvenile Sex Offending.

    Science.gov (United States)

    Goodrow, Kenneth K.; Lim, Mee-Gaik

    1998-01-01

    Attachment theory is applied to identify systemic patterns encouraging juveniles to commit sexual offenses. The role of the helping system in perpetuating offenses is reviewed. The priority of family integrity and the role of professionals in breaking cycles of abuse and repairing earlier destructive emotional attachments are discussed. (EMK)

  8. Attachment Parenting: A Style That Works.

    Science.gov (United States)

    Sears, William

    1995-01-01

    Discusses the benefits of attachment parenting, which emphasizes parental commitment, a low-stress pregnancy, childbirth preparation, breast-feeding with child-led weaning, prompt response to the baby's crying, flexible sleeping arrangements, close-knit father-mother-baby functioning, and the avoidance of detachment parenting. Attachment parenting…

  9. Anxiety, cortisol, and attachment predict plasma oxytocin

    NARCIS (Netherlands)

    Tops, Mattie; Van Peer, Jacobien M.; Korf, Jakob; Wijers, Albertus A.; Tucker, Don M.

    2007-01-01

    Oxytocin and attachment seem to interact in suppressing subjective anxiety and physiological stress responses. In this study we investigated the relationships between individual differences in trait attachment scores, state and trait anxiety, plasma cortisol, and plasma oxytocin levels in healthy pr

  10. Forgiveness and health: The role of attachment

    NARCIS (Netherlands)

    Lawler-Row, K.A.; Hyatt-Edwards, L.; Wünsch, K.L.; Karremans, J.C.T.M.

    2011-01-01

    Attachment was examined for its association to forgiveness and health. Young adults were interviewed about a time of conflict with a parent; during rest and interview periods, readings of blood pressure and heart rate were taken. Participants completed surveys of forgiveness, attachment, relationshi

  11. Adolescent Self-Esteem, Attachment and Loneliness

    Science.gov (United States)

    Dhal, Anubha; Bhatia, Sangeeta; Sharma, Vidhi; Gupta, Priyanka

    2007-01-01

    Objectives: To assess self-esteem, loneliness and attachment styles among adolescents and examine their association with each other and with age and gender. Method: Adolescents (55 males and 55 females) from a public school in Delhi, aged 10-13 years were administered Coopersmith Self-Esteem Inventory (School Form), Attachment Scale and UCLA…

  12. Genetic and Environmental Influences on Adolescent Attachment

    Science.gov (United States)

    Fearon, Pasco; Shmueli-Goetz, Yael; Viding, Essi; Fonagy, Peter; Plomin, Robert

    2014-01-01

    Background: Twin studies consistently point to limited genetic influence on attachment security in the infancy period, but no study has examined whether this remains the case in later development. This study presents the findings from a twin study examining the relative importance of genetic and environmental influences on attachment in…

  13. Adult Attachment, Culturally Adjusted Attachment, and Interpersonal Difficulties of Taiwanese Adults

    Science.gov (United States)

    Wang, Chia-Chih DC; Scalise, Dominick A.

    2010-01-01

    This study examines the applicability of Western adult attachment perspectives to interpersonal difficulties experienced by individuals with indigenous Chinese cultural backgrounds. A total of 275 Taiwanese university students completed self-report surveys of adult attachment, ideal attachment, and interpersonal problems. Culturally adjusted…

  14. Attachment and children's biased attentional processing: evidence for the exclusion of attachment-related information.

    Directory of Open Access Journals (Sweden)

    Eva Vandevivere

    Full Text Available Research in both infants and adults demonstrated that attachment expectations are associated with the attentional processing of attachment-related information. However, this research suffered from methodological issues and has not been validated across ages. Employing a more ecologically valid paradigm to measure attentional processes by virtue of eye tracking, the current study tested the defensive exclusion hypothesis in late childhood. According to this hypothesis, insecurely attached children are assumed to defensively exclude attachment-related information. We hypothesized that securely attached children process attachment- related neutral and emotional information in a more open manner compared to insecurely attached children. Sixty-two children (59.7% girls, 8-12 years completed two different tasks, while eye movements were recorded: task one presented an array of neutral faces including mother and unfamiliar women and task two presented the same with happy and angry faces. Results indicated that more securely attached children looked longer at mother's face regardless of the emotional expression. Also, they tend to have more maintained attention to mother's neutral face. Furthermore, more attachment avoidance was related to a reduced total viewing time of mother's neutral, happy, and angry face. Attachment anxiety was not consistently related to the processing of mother's face. Findings support the theoretical assumption that securely attached children have an open manner of processing all attachment-related information.

  15. The Antimicrobial Activity of Porphyrin Attached Polymers

    Science.gov (United States)

    Thompson, Lesley

    2008-03-01

    We are interested in testing the antimicrobial activity of a porphyrin that is attached to a polymer. The porphyrin (5-(4-carboxyphenyl)-10,15,20-tris-(4-pryridyl)) was synthesized from methyl 4-formyl benzoate, 4-pyridinecarboxaldehyde, and pyrrole and attached to a copolymer of polystyrene/poly(vinyl benzyl chloride), which was synthesized by free radical polymerization. The antimicrobial activity of the polymer-attached porphyrin was then determined for gram-negative E. Coli grown to 0.80 OD. In this procedure, glass slides were coated with polymer-attached porphyrin via dip-coating, and the E. Coli bacteria were plated in Luria Broth media. The plates were subsequently exposed to light overnight before they were incubated as porphyrins act as photo-sensitizers when irradiated with light. The polymer-attached porphyrin did exhibit antimicrobial activity and parameters that affect its efficiency will be discussed.

  16. Job Cognition and Justice Influencing Organizational Attachment

    Directory of Open Access Journals (Sweden)

    Sangeeta Sahu

    2014-02-01

    Full Text Available Organizational attachment echoes the psychological bond between employee and employer relations, differing from affective component of commitment in terms of employees’ psychological and behavioral involvement. This study examines the extent to which employee perception about procedural, distributive justice and job cognition contributes toward organizational attachment in India. The effect of justice and job cognition variables relates differently to previous studies from western part of the globe. First, in past studies, procedural justice predicted commitment, whereas, for Indian employees, distributive justice contributed to organizational attachment. Second, the contribution of extrinsic job cognition in organizational attachment was evident in the model developed using Structural Equation Modeling (SEM; AMOS. Organizations must take cognizance of the outcomes exhibited by the behavior of managers while following the laid down policies and processes. Cognition of fairness at workplace and attachment can play key role in limiting retention. Practical implications and future research directions are discussed.

  17. Attachment to groups: theory and measurement.

    Science.gov (United States)

    Smith, E R; Murphy, J; Coats, S

    1999-07-01

    Aspects of people's identification with groups may be understood by borrowing theoretical ideas and measurement strategies from research on attachment in close relationships. People have mental models of the self as a group member and of groups as sources of identity and esteem. These models affect thoughts, emotions, and behaviors related to group membership. Three studies show that two dimensions of attachment to groups, attachment anxiety and avoidance, can be assessed with good reliability, validity, and over-time stability. These factors are distinct from relationship attachment and from other measures of group identification. Group attachment predicts several important outcomes, including emotions concerning the group, time and activities shared with a group, social support, collective self-esteem, and ways of resolving conflict. This conceptualization provides new insights into the nature of people's psychological ties to groups.

  18. Security of attachment and preschool friendships.

    Science.gov (United States)

    Park, K A; Waters, E

    1989-10-01

    Attachment theory proposes that the quality of the mother-child tie predicts the quality of a child's other close relationships. The purpose of this study was to test whether security of attachment to mother is related to the quality of a preschooler's best friendships. 33 4-year-old and their best friends participated (mean age = 46 months). Attachment Q-set data were collected to score security of mother-child attachment. Security data were used to classify the friend pairs as secure-secure or secure-insecure. Best friend dyads were observed for a 1-hour free-play session. Each pair's behavior was described with the Dyadic Relationships Q-set, a measure designed to describe the behavior of a pair of children. Secure-secure pairs were more harmonious, less controlling, more responsive, and happier than secure-insecure pairs. The results are related to previous work on attachment and social competence.

  19. Individual differences in infant-mother attachment at twelve and eighteen months: stability and change in families under stress.

    Science.gov (United States)

    Vaughn, B; Egeland, B; Sroufe, L A; Waters, E

    1979-12-01

    100 economically disadvantaged mothers and their infants were observed in the Ainsworth and Wittig "strange situation" at 12 and 18 months. Infants were classified as secure, anxiously attached/avoidant, or anxiously attached/resistant. In addition, mothers reported occurrence of stressful events related to the stability of the caretaking environment during the 12--18 month period by completing a 44-item checklist concerning work, finances, family, neighbors, health, etc. 62 infants were assigned to the same attachment classification at both 12 and 18 months (p less than .01). Despite this stability, significantly more infants changes classification than in a recent study of stable middle-class families. With the present sample, anxious attachment was associated with less stable caretaking environments than secure attachment; change from secure to anxious attachment was associated with higher stressful-event scores than stable secure attachment. PMID:535447

  20. The relationship between attachment styles and internalizing or externalizing symptoms in clinical and nonclinical adolescents

    Directory of Open Access Journals (Sweden)

    Fernando Lacasa

    2015-05-01

    Full Text Available Studies regarding the relationship between attachment and psychopathology during adolescence have been performed separately for clinical and nonclinical adolescents and have used different assessment measures, which together might produce a methodological bias that increases the association between attachment and psychopathology. With the aim of avoiding this bias, the present study used identical measures to explore the relationship between attachment styles and internalizing or externalizing symptoms in clinical and nonclinical samples of adolescents. The sample consisted of 258 adolescents, 129 clinical and 129 nonclinical, aged between 14 and 18 years. The adolescents in each sample were matched for age, gender, and socioeconomic status. Attachment was assessed using the CaMir Q-sort, and psychopathological symptoms were assessed by means of the Youth Self Report (YSR. The relationships between attachment and psychopathology were similar for clinical and nonclinical adolescents. A preoccupied attachment style predicted internalizing and externalizing symptoms, somatic complaints, anxious-fearful behavior, verbal aggression, attention-seeking behavior, and thinking problems. Compared to previous studies, this research has made it possible to identify broader, stronger, and more specific associations between preoccupied attachment style and psychopathological symptoms in adolescents.

  1. A structural domain mediates attachment of ethanolamine phosphoglycerol to eukaryotic elongation factor 1A in Trypanosoma brucei.

    Directory of Open Access Journals (Sweden)

    Eva Greganova

    Full Text Available Ethanolamine phosphoglycerol (EPG represents a protein modification that so far has only been found in eukaryotic elongation factor 1A (eEF1A. In mammals and plants, EPG is covalently attached to two conserved glutamate residues located in domains II and III of eEF1A. In contrast, Trypanosoma brucei eEF1A contains a single EPG attached to Glu362 in domain III. The sequence and/or structural requirements for covalent linkage of EPG to eEF1A have not been determined for any organism. Using a combination of biosynthetic labelling of parasites with tritiated ethanolamine and mass spectrometry analyses, we demonstrate that replacement of Glu362 in T. brucei eEF1A by site-directed mutagenesis prevents EPG attachment, whereas single or multiple amino acid substitutions around the attachment site are not critical. In addition, by expressing a series of eEF1A deletion mutants in T. brucei procyclic forms, we demonstrate that a peptide consisting of 80 amino acids of domain III of eEF1A is sufficient for EPG attachment to occur. Furthermore, EPG addition also occurs if domain III of eEF1A is fused to a soluble reporter protein. To our knowledge, this is the first report addressing amino acid sequence, or structure, requirements for EPG modification of eEF1A in any organism. Using T. brucei as a model organism, we show that amino acid substitutions around the modification site are not critical for EPG attachment and that a truncated version of domain III of eEF1A is sufficient to mediate EPG addition.

  2. Impaired bacterial attachment to light activated Ni-Ti alloy

    Energy Technology Data Exchange (ETDEWEB)

    Chrzanowski, Wojciech; Valappil, Sabeel P. [UCL Eastman Dental Institute, Division of Biomaterials and Tissue Engineering, 256 Gray' s In Road, WC1X 8LD, London (United Kingdom); Dunnill, Charles W. [University College London, Centre for Materials Chemistry, Chemistry Department, 20 Gordon Street, London, WC1H 0AJ (United Kingdom); Abou Neel, Ensanya A. [UCL Eastman Dental Institute, Division of Biomaterials and Tissue Engineering, 256 Gray' s In Road, WC1X 8LD, London (United Kingdom); Lee, Kevin [London Centre for Nanotechnology, 17-19 Gordon Street, London WC1H 0AH (United Kingdom); Parkin, Ivan P. [University College London, Centre for Materials Chemistry, Chemistry Department, 20 Gordon Street, London, WC1H 0AJ (United Kingdom); Wilson, Michael [UCL Eastman Dental Institute, Division of Microbial Diseases, 256 Gray' s In Road, WC1X 8LD, London (United Kingdom); Armitage, David A. [De Montfort University, Leicester School of Pharmacy, The Gateway, Leicester, LE1 9BH (United Kingdom); Knowles, Jonathan C., E-mail: j.knowles@eastman.ucl.ac.uk [UCL Eastman Dental Institute, Division of Biomaterials and Tissue Engineering, 256 Gray' s In Road, WC1X 8LD, London (United Kingdom)

    2010-01-30

    Ni-Ti alloy due to its unique mechanical properties, is used for many types of implants. Failure of these implants can be attributed to many different factors; however infections are a common problem. In this paper, the attachment of the bacteria, Staphylococcus aureus, to the Ni-Ti surface modified by a range of processes with and without of light activation (used to elicit antimicrobial properties of materials) was assessed and related to different surface characteristics. Before the light activation the number of bacterial colony forming units was the greatest for the samples thermally oxidised at 600 deg. C. This sample and the spark oxidised samples showed the highest photocatalytic activity but only the thermally oxidised samples at 600 deg. C showed a significant drop of S. aureus attachment. The findings in this study indicate that light activation and treating samples at 600 deg. C is a promising method for Ni-Ti implant applications with inherent antimicrobial properties. Light activation was shown to be an effective way to trigger photocatalytic reactions on samples covered with relatively thick titanium dioxide via accumulation of photons in the surface and a possible increase in defects which may result in free oxygen. Moreover, light activation caused an increase in the total surface energy.

  3. Determination of gadolinium(III) ions in soil and sediment samples by a novel gadolinium membrane sensor based on 6-methyl-4-{l_brace}[1-(2-thienyl)methylidene]amino{r_brace}3-thioxo-3,4-dihydro-1,2,4 -triazin-5-(2H)-one

    Energy Technology Data Exchange (ETDEWEB)

    Zamani, Hassan Ali [Department of Chemistry, Quchan branch, Islamic Azad University, Quchan (Iran, Islamic Republic of)], E-mail: haszamani@yahoo.com; Rajabzadeh, Ghadir [Khorasan Science and Technology Park, Mashhad (Iran, Islamic Republic of); Ganjali, Mohammad Reza; Norouzi, Parviz [Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran (Iran, Islamic Republic of); Endocrine and Metabolism Research Center, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of)

    2007-08-15

    Highly selective and sensitive poly(vinyl chloride) (PVC) membrane electrodes based on 6-methyl-4-{l_brace}[1-(2-thienyl)methylidene]amino{r_brace}3-thioxo-3,4-dihydro-1,2,4 -triazin-5-(2H)-one (MATDTO) as new carriers for gadolinium ion-selective electrode was reported. The membrane solutions containing PVC, o-nitrophenyl octyl ether (NPOE) as plasticizer, sodium tetraphenyl borate (NaTPB) as lipophilic ionic additive, and MATDTO, displays a calibration response for Gd{sup 3+} ions over a wide concentration range of 1.0 x 10{sup -6}-1.0 x 10{sup -1} M with Nernstian slopes of 19.8 {+-} 0.2 mV per decade and a detection limit as 5.8 x 10{sup -7} M. The sensor has a relatively fast response time of <10 s and can be used in the pH range 3.2-8.7 for at least 2 months without any significant divergence in potentials. The selectivity coefficients for mono-, di-, and trivalent cations indicate good selectivity for Gd(III) ions over a large number of interfering cations. The membrane sensor was used as an indicator electrode in the potentiometric titration of Gd(III) ions with EDTA. The proposed electrode was also applied to the determination of concentration of Gd(III) ions in soil and sediment samples and validation with CRMs.

  4. Attachment to community and civic and political engagement: a case study of students.

    Science.gov (United States)

    Boulianne, Shelley; Brailey, Michelle

    2014-11-01

    Youth's low level of civic and political engagement may detrimentally affect the health of communities and the democratic system. This paper examines the role of community attachment in explaining youth's levels of civic and engagement. This examination requires an evaluation of existing measures of community attachment and their relevance for understanding youth's experiences. The paper uses a student sample, highlighting a group of youth who have a degree of variation in their experiences of community attachment. We find that subjective measures of community attachment are related to volunteering and voting, but the objective measure of community attachment, that is, years of residence, affects voting and not volunteering. Different mechanisms explain civic engagement versus political engagement. As such, different strategies are required to combat low levels of civic versus political engagement.

  5. Attachment relationships of preschool-aged children of mothers with HIV and HIV-related psychosis.

    Science.gov (United States)

    Spies, R; Sterkenburg, P S; van Rensburg, E; Schuengel, C

    2016-10-01

    Children from mothers with HIV-related psychosis are frequently raised in challenging contexts, yet the extent to which these children grow up in insecure or disordered attachment relationships is unknown. Using the Strange Situation Procedure the distribution of attachment relationships of children from mothers with HIV and psychosis (n = 45) was compared with children from mothers with HIV without psychosis (n = 41). No significant differences in the distributions were found between the two groups and attachment was not associated with specific psychotic symptomatology. Security of attachment was associated with more people providing the mother with emotional support, but only in the psychosis group. Disordered attachment (24%) was more often found in the total sample than in studies with other normal and high risk populations. Recommendations were made for future research about factors facilitating resilience in the children and on interventions increasing emotional support for affected mothers.

  6. Attachment and parental divorce: a test of the diffusion and sensitive period hypotheses.

    Science.gov (United States)

    Fraley, R Chris; Heffernan, Marie E

    2013-09-01

    One of the assumptions of attachment theory is that disruptions in parental relationships are prospectively related to insecure attachment patterns in adulthood. The majority of research that has evaluated this hypothesis, however, has been based on retrospective reports of the quality of relationships with parents-research that is subject to retrospective biases. In the present research, the authors examined the impact of parental divorce-an event that can be assessed relatively objectively-on attachment patterns in adulthood across two samples. The data indicate that parental divorce has selective rather than diffuse implications for insecure attachment. Namely, parental divorce was more strongly related to insecure relationships with parents in adulthood than insecure relationships with romantic partners or friends. In addition, parental insecurity was most pronounced when parental divorce took place in early childhood. This finding is consistent with hypotheses about sensitive periods in attachment development.

  7. Individual Differences in Work-Related Well-Being: The Role of Attachment Style

    Directory of Open Access Journals (Sweden)

    Tiziana Lanciano

    2014-11-01

    Full Text Available Integrating theories of adult attachment and well-being at the workplace, the present study tested the role of attachment style in predicting work-related well-being in terms of job satisfaction and job involvement, over and above dispositional trait measures (emotional traits and work-related traits. A sample of workers took part in a correlational study that explored the relationships among a adult attachment, b emotional traits, c work-related traits, and d work-related well-being indices. The results showed that both secure and anxious attachment style explained workers’ job involvement, whereas the secure and avoidant attachment styles explained workers’ job satisfaction. The current findings thus confirm and expand the literature's emphasis on studying the variables and processes that underlie people's mental health in the work setting, and have implications for assessing and promoting well-being in the workplace.

  8. The Brief Accessibility, Responsiveness, and Engagement Scale: A Tool for Measuring Attachment Behaviors in Clinical Couples.

    Science.gov (United States)

    Sandberg, Jonathan G; Novak, Joshua R; Davis, Stephanie Y; Busby, Dean M

    2016-01-01

    Measuring attachment behaviors is relevant to creating secure couple relationships. This article seeks to test and examine the reliability and validity of the Brief Accessibility, Responsiveness, and Engagement (BARE) Scale-a practical measure of couple attachment-in a clinical sample. Couples took the BARE and other assessments measuring relationship functioning (self and partner reports of relationship satisfaction, relationship stability, positive and negative communication, and attachment styles). Results suggest that the BARE appears to be a reliable and valid tool for assessing couple attachment and can accurately predict and classify whether the couples belong in the clinical or nonclinical group, as well as their level of relationship satisfaction. Results also indicate attachment behaviors are related to relationship outcomes. PMID:26748730

  9. Attachment to community and civic and political engagement: a case study of students.

    Science.gov (United States)

    Boulianne, Shelley; Brailey, Michelle

    2014-11-01

    Youth's low level of civic and political engagement may detrimentally affect the health of communities and the democratic system. This paper examines the role of community attachment in explaining youth's levels of civic and engagement. This examination requires an evaluation of existing measures of community attachment and their relevance for understanding youth's experiences. The paper uses a student sample, highlighting a group of youth who have a degree of variation in their experiences of community attachment. We find that subjective measures of community attachment are related to volunteering and voting, but the objective measure of community attachment, that is, years of residence, affects voting and not volunteering. Different mechanisms explain civic engagement versus political engagement. As such, different strategies are required to combat low levels of civic versus political engagement. PMID:25612388

  10. Mastery matters most: How mastery and positive relations link attachment avoidance and anxiety to negative emotions.

    Science.gov (United States)

    Paech, Juliane; Schindler, Ines; Fagundes, Christopher P

    2016-08-01

    Attachment avoidance and anxiety are associated with negative emotions. However, the mechanisms underlying these associations are not fully understood. We investigated environmental mastery and positive relations with others as two mechanisms behind the attachment-emotion link in a sample of 343 adults. As predicted, attachment avoidance and anxiety were related to greater fear, hostility, envy and depression through lower mastery. Contrary to our hypothesis, positive relations mediated only the attachment-depression link. In addition, by adopting a moderated mediation approach, we were able to show that mastery mattered most for individuals high on avoidance: The indirect effect of avoidance through lack of mastery on fear, hostility and depression (but not on envy) increased with higher avoidance scores. Contrary to our predictions, poor relationships did not matter more as sources of negative emotions as anxiety increased. These findings underscore that the emotional life of avoidantly attached individuals is especially jeopardised by poor mastery. PMID:26079543

  11. Attachment relationships of preschool-aged children of mothers with HIV and HIV-related psychosis.

    Science.gov (United States)

    Spies, R; Sterkenburg, P S; van Rensburg, E; Schuengel, C

    2016-10-01

    Children from mothers with HIV-related psychosis are frequently raised in challenging contexts, yet the extent to which these children grow up in insecure or disordered attachment relationships is unknown. Using the Strange Situation Procedure the distribution of attachment relationships of children from mothers with HIV and psychosis (n = 45) was compared with children from mothers with HIV without psychosis (n = 41). No significant differences in the distributions were found between the two groups and attachment was not associated with specific psychotic symptomatology. Security of attachment was associated with more people providing the mother with emotional support, but only in the psychosis group. Disordered attachment (24%) was more often found in the total sample than in studies with other normal and high risk populations. Recommendations were made for future research about factors facilitating resilience in the children and on interventions increasing emotional support for affected mothers. PMID:27219712

  12. The longitudinal link between parenting and child aggression: the moderating effect of attachment security.

    Science.gov (United States)

    Cyr, Maeve; Pasalich, Dave S; McMahon, Robert J; Spieker, Susan J

    2014-10-01

    This study examined whether infant attachment security moderates the association between parenting in preschool and later aggressive behavior among a sample of children at high risk for developing conduct problems. Participants were 82 adolescent mother-child dyads recruited from the community. Infant attachment status at age 1 year was measured using the Strange Situation. When children were aged 4.5 years, mothers reported on their self-efficacy in regards to parenting, and mothers' positive parenting and criticism were coded from direct observations of parent-child interactions. In grade 1, mothers reported on their children's aggressive behavior. Infant secure attachment significantly moderated the association between observed maternal criticism and child aggression. That is, among insecurely attached children, higher levels of maternal criticism were associated with more severe aggression. This longitudinal finding suggests that a secure attachment may buffer the deleterious effects of harsh parenting on child aggression.

  13. Regulating emotion expression and regulating emotion experience: divergent associations with dimensions of attachment among older women.

    Science.gov (United States)

    Consedine, Nathan S; Fiori, Katherine L; Magai, Carol

    2012-01-01

    Adult attachment research does not systematically distinguish between experiential and expressive forms of regulation. Drawing insights from developmental-functionalism - a lifespan theory of emotion and emotion regulation - the current report examined the relations among attachment, trait emotion, and expressive emotion regulation in a large (N = 1204) sample of older women. Although both preoccupation and fearful-avoidance predicted more anxiety and anger, preoccupation predicted greater fear withdrawal and less fear expression, while fearful-avoidance predicted greater fear expression and greater anger withdrawal; attachment security predicted less fear withdrawal and less anger expression. Importantly, results regarding expressive regulation held even when controlling for trait levels of the underlying emotion. Results are interpreted within the context of models of attachment and lifespan socioemotional functioning. It is suggested that attachment research may benefit from considering the distinct functions of experienced versus expressed emotion in developmentally diverse contexts. Limitations are discussed and directions for future research are given.

  14. Longitudinal association between adolescent attachment, adult romantic attachment, and emotion regulation strategies.

    Science.gov (United States)

    Pascuzzo, Katherine; Cyr, Chantal; Moss, Ellen

    2013-01-01

    Attachment security towards parents and peers in adolescence, and romantic attachment styles and emotion regulation strategies in young adulthood, were evaluated using an eight-year longitudinal design. Fifty-six young adults completed the Inventory of Parent and Peer Attachment (IPPA) at age 14, and then, at age 22, the Experience in Close Relationships (ECR) and the Coping Inventory for Stressful Situations (CISS), an emotion regulation questionnaire concerning coping strategies, including task-oriented versus emotion-oriented foci. Results indicated that greater insecurity to parents and peers in adolescence predicted a more anxious romantic attachment style and greater use of emotion-oriented strategies in adulthood. Concurrently, anxious adult attachment style was related to more emotion-oriented strategies, whereas an avoidant attachment style was related to less support-seeking. Analyses also identified emotion-oriented coping strategies as a partial mediator of the link between adolescent attachment insecurity to parents and adult anxious attachment, and a complete mediator of the association between adolescent attachment insecurity to peers and adult anxious attachment. These findings support the core assumption of continuity in attachment theory, where relationships to parents influence close romantic relationships in adulthood.

  15. Slides with no attached paper

    International Nuclear Information System (INIS)

    This document brings together the different presentations (slides) given at the workshop but with no attached paper. These slides refer to the following presentations: - Presentation of ITN (Instituto Tecnologico e Nuclear); - Minor Actinide Partitioning (Dominique Warin); - Transmutation (Janne Wallenius); - Radioactive Waste Management, IGD-TP (Gerald Ouzounian); - Present status of the Swedish nuclear waste management programme (Peter Wikberg); - The U.S. Fuel Cycle Research and Development Program - Separations Research and Development (Terry Todd); - Strategies and national programs of closed fuel cycles - Russian Expert Vision (Mikhael Kormilitsyn) - Extraction Studies Of Potential Solvent Formulations For The GANEX Process (Fiona MacLachlan); - Investigations of The Fundamental Chemistry of the TALSPEAK Process (Ken Nash); - Extraction Separation of Trivalent Minor Actinides and Lanthanides by Hexa-dentate Nitrogen-donor Extractant, TPEN, and its Analogs (Kenji Takeshita); - Fluorinated Diluents for HLW Processing - technological point of view (Vasiliy Babain); - Extraction properties of some new pyridine molecules and search for better diluents (Irena Spendlikova); - Kinetics of extraction of Eu3+ ion by TODGA and CyMe4-BTBP studied using the RMC technique (Trong Hung Vu); - Redox Chemistry of Neptunium in Solutions of Nitric Acid (Alena Paulenova); - NMR applied to actinide ions and their complexes. In search of covalency effects (Geoffrey Vidick); - Towards 'Stability Rules' for Radiolysis of bis-DGA compounds (Ana Nunez); - Pyroprocess Research Activities at IGCAR, Kalpakkam, India (K. Nagarajan); - Critical issues of nuclear energy systems employing molten salt fluorides: from ISTC No. 1606 to No. 3749 (1. year of project activity) and MARS/EVOL cooperation (Victor Ignatiev); - Conversion processes: Internal Gelation and the Sphere-pac concept (Manuel Pouchon); - A Combined Nuclear Technology and Nuclear Chemistry Master. A Unique Initiative

  16. Structure and reactivity of As(III)- and As(V)-rich schwertmannites and amorphous ferric arsenate sulfate from the Carnoulès acid mine drainage, France: Comparison with biotic and abiotic model compounds and implications for As remediation

    Science.gov (United States)

    Maillot, Fabien; Morin, Guillaume; Juillot, Farid; Bruneel, Odile; Casiot, Corinne; Ona-Nguema, Georges; Wang, Yuheng; Lebrun, Sophie; Aubry, Emmanuel; Vlaic, Gilberto; Brown, Gordon E.

    2013-03-01

    Poorly ordered nanocrystalline hydroxysulfate minerals of microbial origin, such as schwertmannite, Fe8O8(OH)6SO4, are important arsenic scavengers in sulfate-rich acid mine drainage (AMD) environments. However, despite the fact that As(III) and As(V) have been shown to sorb on schwertmannite, little is known about the actual mechanism of arsenic scavenging processes after microbial Fe(II) oxidation in AMD environments. The major focus of the present study is to determine the molecular-level structure of poorly ordered As(III) and As(V) bearing Fe oxyhydroxysulfate minerals from the Carnoulès AMD, France, which exhibits exceptional As(III) concentrations. Powder X-ray diffraction (XRD) and extended X-ray absorption fine structure (EXAFS) spectroscopy were used to compare field samples with a large set of synthetic analogs prepared via biotic or abiotic pathways, with As/Fe ratios typical of minerals and mineraloids ranging from nanocrystalline schwertmannite to amorphous hydroxysulfate compounds. Our results yield further evidence for the poisoning effect of As(V) in limiting the nucleation of schwertmannite. For initial dissolved As(V)/Fe(III) molar ratios ⩾0.2, amorphous Fe(III)-As(V) hydroxysulfate forms, with a local structure consistent with that of amorphous ferric arsenate. EXAFS data for this amorphous material are consistent with corner-sharing FeO6 octahedra to which AsO4 tetrahedra attach via double-corner 2C linkages. For As(V)/Fe(III) molar ratios lower than 0.2, As(V) binds to schwertmannite via 2C surface complexes. In contrast with the As(V)-containing samples, As(III) has a lower affinity for schwertmannite following its nucleation, as this mineral phase persists up to an initial As(III)/Fe(III) molar ratio of 0.6. EXAFS data indicate that during the precipitation process, As(III) forms dominantly 2C surface complexes on schwertmannite surfaces, likely on the sides of double-chains of Fe(III)(O,OH)6 octahedra, with a smaller proportion of edge

  17. An attachment research perspective on ADHD.

    Science.gov (United States)

    Kissgen, Ruediger; Franke, Sebastian

    2016-06-01

    Since the beginning of clinical attachment research in the mid-1980s the number of research projects in this area has been continuously increasing. The research questions so far can be allocated to numerous medical disciplines such as psychosomatic medicine, adult psychiatry or child and adolescent psychiatry. Recently, children with ADHD and their families have also become subjects of this branch of research. Their specific behavioral characteristics from early childhood on constitute unique challenges on the parent-child interaction. If these interactions develop in a suboptimal way, children may develop an insecure or even a disorganized attachment quality. The latter represents a risk factor for a clinically significant psychopathological development.This article initially presents basic principles of attachment theory and discusses the relevance of the cardinal symptoms of ADHD for clinical attachment research. Subsequently, it outlines and discusses the main results of existing research regarding attachment and ADHD. It concludes with a perspective on research questions that need to be addressed in the future with regard to a transgenerational model that highlights the importance of parental attachment representations to the development of children's attachment quality.

  18. Environmental and genetic influences on early attachment.

    Science.gov (United States)

    Gervai, Judit

    2009-01-01

    Attachment theory predicts and subsequent empirical research has amply demonstrated that individual variations in patterns of early attachment behaviour are primarily influenced by differences in sensitive responsiveness of caregivers. However, meta-analyses have shown that parenting behaviour accounts for about one third of the variance in attachment security or disorganisation. The exclusively environmental explanation has been challenged by results demonstrating some, albeit inconclusive, evidence of the effect of infant temperament. In this paper, after reviewing briefly the well-demonstrated familial and wider environmental influences, the evidence is reviewed for genetic and gene-environment interaction effects on developing early attachment relationships. Studies investigating the interaction of genes of monoamine neurotransmission with parenting environment in the course of early relationship development suggest that children's differential susceptibility to the rearing environment depends partly on genetic differences. In addition to the overview of environmental and genetic contributions to infant attachment, and especially to disorganised attachment relevant to mental health issues, the few existing studies of gene-attachment interaction effects on development of childhood behavioural problems are also reviewed. A short account of the most important methodological problems to be overcome in molecular genetic studies of psychological and psychiatric phenotypes is also given. Finally, animal research focusing on brain-structural aspects related to early care and the new, conceptually important direction of studying environmental programming of early development through epigenetic modification of gene functioning is examined in brief. PMID:19732441

  19. Environmental and genetic influences on early attachment

    Directory of Open Access Journals (Sweden)

    Gervai Judit

    2009-09-01

    Full Text Available Abstract Attachment theory predicts and subsequent empirical research has amply demonstrated that individual variations in patterns of early attachment behaviour are primarily influenced by differences in sensitive responsiveness of caregivers. However, meta-analyses have shown that parenting behaviour accounts for about one third of the variance in attachment security or disorganisation. The exclusively environmental explanation has been challenged by results demonstrating some, albeit inconclusive, evidence of the effect of infant temperament. In this paper, after reviewing briefly the well-demonstrated familial and wider environmental influences, the evidence is reviewed for genetic and gene-environment interaction effects on developing early attachment relationships. Studies investigating the interaction of genes of monoamine neurotransmission with parenting environment in the course of early relationship development suggest that children's differential susceptibility to the rearing environment depends partly on genetic differences. In addition to the overview of environmental and genetic contributions to infant attachment, and especially to disorganised attachment relevant to mental health issues, the few existing studies of gene-attachment interaction effects on development of childhood behavioural problems are also reviewed. A short account of the most important methodological problems to be overcome in molecular genetic studies of psychological and psychiatric phenotypes is also given. Finally, animal research focusing on brain-structural aspects related to early care and the new, conceptually important direction of studying environmental programming of early development through epigenetic modification of gene functioning is examined in brief.

  20. Attachment typologies and posttraumatic stress disorder (PTSD, depression and anxiety: a latent profile analysis approach

    Directory of Open Access Journals (Sweden)

    Cherie Armour

    2011-12-01

    Full Text Available Bartholomew (1990 proposed a four category adult attachment model based on Bowlby's (1973 proposal that attachment is underpinned by an individual's view of the self and others. Previous cluster analytic techniques have identified four and two attachment styles based on the Revised Adult Attachment Scale (RAAS. In addition, attachment styles have been proposed to meditate the association between stressful life events and subsequent psychiatric status. The current study aimed to empirically test the attachment typology proposed by Collins and Read (1990. Specifically, LPA was used to determine if the proposed four styles can be derived from scores on the dimensions of closeness/dependency and anxiety. In addition, we aimed to test if the resultant attachment styles predicted the severity of psychopathology in response to a whiplash trauma. A large sample of Danish trauma victims (N=1577 participated. A Latent Profile Analysis was conducted, using Mplus 5.1, on scores from the RAAS scale to ascertain if there were underlying homogeneous attachment classes/subgroups. Class membership was used in a series of one-way ANOVA tests to determine if classes were significantly different in terms of mean scores on measures of psychopathology. The three class solution was considered optimal. Class one was termed Fearful (18.6%, Class two Preoccupied (34.5%, and Class three Secure (46.9%. The secure class evidenced significantly lower mean scores on PTSD, depression, and anxiety measures compared to other classes, whereas the fearful class evidenced significantly higher mean scores compared to other classes. The results demonstrated evidence of three discrete classes of attachment styles, which were labelled secure, preoccupied, and fearful. This is in contrast to previous cluster analytic techniques which have identified four and two attachment styles based on the RAAS.In addition, Securely attached individuals display lower levels of psychopathology post

  1. The fourth pattern of attachment: Disorganized / disoriented

    Directory of Open Access Journals (Sweden)

    Zlatka Cugmas

    2003-09-01

    Full Text Available On the basis of the study of recent scientific literature about the development of attachment behavior, the author answers the following questions about: the behavior children categorized as Disorganized/disorientated or Controlling in the procedure of the Strange situation; the life circumstances, in which these children live; the reasons for lack of balanced strategies of attachment and characteristics of their general manner of adaptation. The author finds the characteristics of the mothers' (insensitivity to be significantly influential for the emergence of the fourth pattern of attachment. These children are heterogeneous regarding adaptation in general. Professional help preceding negative consequences for their socioemotional development is neccesary.

  2. Insecure Attachment, Dysfunctional Attitudes, and Low Self-Esteem Predicting Prospective Symptoms of Depression and Anxiety During Adolescence

    OpenAIRE

    Lee, Adabel; Hankin, Benjamin L.

    2009-01-01

    This study extends the existing adult literature on insecure attachment as a predictor of depression and anxiety by examining these pathways in a sample of adolescents. In addition, dysfunctional attitudes and low self-esteem were tested as mediators of the association between insecure attachment and symptoms of depression and anxiety. Youth (N =350; 6th–10th graders) completed self-report measures of attachment, dysfunctional attitudes, self-esteem, and symptoms of depression and anxiety in ...

  3. Attached and Free-Floating Bacterioplankton in Howe Sound, British Columbia, a Coastal Marine Fjord-Embayment

    OpenAIRE

    Albright, L. J.; McCrae, S. K.; May, B. E.

    1986-01-01

    Factors which influence the attachment of bacterioplankton to particles (including phytoplankton) were investigated by using (i) water samples removed from a coastal temperate fjord over an annual cycle and (ii) unialgal cultures of Prorocentrum minimum, Dunaliella tertiolecta, and Skeletonema costatum. Silt and salinity levels in this fjord seawater did not appear to influence bacterial attachment, but the percent attached bacteria was inversely related to both chlorophyll a concentrations a...

  4. Attachment as a partial mediator of the relationship between emotional abuse and schizotypy.

    Science.gov (United States)

    Goodall, Karen; Rush, Robert; Grünwald, Lisa; Darling, Stephen; Tiliopoulos, Niko

    2015-12-15

    Developmental theories highlight the salience of attachment theory in explaining vulnerability towards psychosis. At the same time there is increasing recognition that psychosis is associated with childhood trauma variables. This study explored the interaction between attachment and several trauma variables in relation to schizotypy levels in a non-clinical sample. 283 non-clinical participants completed online measures of schizotypy, attachment, childhood abuse and neglect. When five types of abuse/neglect were entered into a linear regression analysis emotional abuse was the sole independent predictor of schizotypy. Age, attachment anxiety and avoidance were independent predictors after the effects of emotional abuse were controlled for. The overall model was significant, explaining 34% of the variation in schizotypy. Moderation analysis indicated that the effect of emotional abuse was not conditional upon attachment. Parallel mediation analysis indicated small but significant indirect effects of emotional abuse on schizotypy through attachment avoidance (13%) and attachment anxiety (8%). We conclude that emotional abuse contributes to vulnerability towards psychosis both directly and indirectly through attachment insecurity. PMID:26474661

  5. Adult attachment, emotion dysregulation, and symptoms of depression and generalized anxiety disorder.

    Science.gov (United States)

    Marganska, Anna; Gallagher, Michelle; Miranda, Regina

    2013-01-01

    Differences in attachment style have been linked to both emotion regulation and psychological functioning, but the emotion regulatory mechanism through which attachment style might impact symptoms of depression and anxiety is unclear. The present study examined the explanatory role of emotion dysregulation in the relation between adult attachment style and symptoms of depression and generalized anxiety disorder (GAD) in a sample of 284 adults. Secure attachment was associated with lower depression and GAD symptoms and lower emotion dysregulation, whereas insecure attachment styles were generally associated with higher depression and GAD scores and higher emotion dysregulation. Perceived inability to generate effective emotion regulation strategies mediated the relation between insecure attachment and both depression and GAD symptoms. Nonacceptance of negative emotions and inability to control impulsive behaviors emerged as additional mediators of the relation between insecure attachment styles and GAD symptoms. The differential contribution of attachment style and emotion regulation to the prediction of depression and GAD symptoms may reflect differences in vulnerability to depression and GAD. PMID:23330631

  6. Attachment style impacts behavior and early oculomotor response to positive, but not negative, pictures.

    Science.gov (United States)

    Silva, Catarina; Chaminade, Thierry; David, Da Fonseca; Santos, Andreia; Esteves, Francisco; Soares, Isabel; Deruelle, Christine

    2015-06-01

    The present study investigated whether oculomotor behavior is influenced by attachment styles. The Relationship Scales Questionnaire was used to assess attachment styles of forty-eight voluntary university students and to classify them into attachment groups (secure, preoccupied, fearful, and dismissing). Eye-tracking was recorded while participants engaged in a 3-seconds free visual exploration of stimuli presenting either a positive or a negative picture together with a neutral picture, all depicting social interactions. The task consisted in identifying whether the two pictures depicted the same emotion. Results showed that the processing of negative pictures was impermeable to attachment style, while the processing of positive pictures was significantly influenced by individual differences in insecure attachment. The groups highly avoidant regarding to attachment (dismissing and fearful) showed reduced accuracy, suggesting a higher threshold for recognizing positive emotions compared to the secure group. The groups with higher attachment anxiety (preoccupied and fearful) showed differences in automatic capture of attention, in particular an increased delay preceding the first fixation to a picture of positive emotional valence. Despite lenient statistical thresholds induced by the limited sample size of some groups (p emotions is affected by attachment styles. These results are discussed within a broader evolutionary framework. PMID:25693911

  7. Insatiable insecurity: maternal obesity as a risk factor for mother-child attachment and child weight.

    Science.gov (United States)

    Keitel-Korndörfer, Anja; Sierau, Susan; Klein, Annette M; Bergmann, Sarah; Grube, Matthias; von Klitzing, Kai

    2015-01-01

    Childhood obesity has become a rising health problem, and because parental obesity is a basic risk factor for childhood obesity, biological factors have been especially considered in the complex etiology. Aspects of the family interaction, e.g., mother-child attachment, have not been the main focus. Our study tried to fill this gap by investigating whether there is a difference between children of obese and normal weight mothers in terms of mother-child attachment, and whether mother-child attachment predicts child's weight, in a sample of 31 obese and 31 normal weight mothers with children aged 19 to 58 months. Mother-child attachment was measured with the Attachment Q-Set. We found that (1) children of obese mothers showed a lower quality of mother-child attachment than children of normal weight mothers, which indicates that they are less likely to use their mothers as a secure base; (2) the attachment quality predicted child`s BMI percentile; and (3) the mother-child attachment adds incremental validity to the prediction of child's BMI beyond biological parameters (child's BMI birth percentile, BMI of the parents) and mother's relationship status. Implications of our findings are discussed.

  8. Changes in Relationship-Specific Attachment in Emotionally Focused Couple Therapy.

    Science.gov (United States)

    Burgess Moser, Melissa; Johnson, Susan M; Dalgleish, Tracy L; Lafontaine, Marie-France; Wiebe, Stephanie A; Tasca, Giorgio A

    2016-04-01

    Emotionally focused couple therapy (EFT; Johnson, The practice of emotionally focused couple therapy (1st/2nd edition). Brunner-Routledge, New York, 2004) is an effective treatment of relationship distress (Johnson et al., Clinical Psychology: Science and Practice, 1999; 6, 67). However, less is known about EFT's impact on couples' relationship-specific attachment bond. Using hierarchical linear modeling with a sample of 32 couples, we examined session-by-session changes in couples' relationship-specific attachment anxiety and avoidance and pre- to posttherapy changes in their relationship-specific attachment behaviors. Couples significantly decreased in relationship-specific attachment avoidance, and those who completed a blamer softening significantly decreased in relationship-specific attachment anxiety. Couples' attachment behavior significantly increased toward security. Finally, session-by-session decreases in relationship-specific attachment anxiety and avoidance were significant associated with increases in relationship satisfaction across sessions. These results provide empirical support for the attachment-based assumptions of EFT. Video abstract accessible by clicking here. PMID:26511674

  9. Gene-environment interaction in problematic substance use: interaction between DRD4 and insecure attachments.

    Science.gov (United States)

    Olsson, Craig A; Moyzis, Robert K; Williamson, Elizabeth; Ellis, Justine A; Parkinson-Bates, Mandy; Patton, George C; Dwyer, Terry; Romaniuk, Helena; Moore, Elya E

    2013-07-01

    To investigate the combined effect of an exon III variable number tandem repeat in the dopamine receptor gene (DRD4) and insecure attachment style on risk for tobacco, cannabis and alcohol use problems in young adulthood. It was hypothesized that (1) individuals with 5, 6, 7 or 8 repeats (labelled 7R+) would be at increased risk for problematic drug use, and (2) risk for drug use would be further increased in individuals with 7R+ repeats who also have a history of insecure parent-child attachment relations. Data were drawn from the Victorian Adolescent Health Cohort Study, an eight-wave longitudinal study of adolescent and young adult development. DRD4 genotypes were available for 839 participants. Risk attributable to the combined effects of 7R+ genotype and insecure attachments was evaluated within a sufficient causes framework under the assumptions of additive interaction using a two-by-four table format with a common reference group. 7R+ alleles were associated with higher tobacco, cannabis and alcohol use (binging). Insecure attachments were associated with higher tobacco and cannabis use but lower alcohol use. For tobacco, there was evidence of interaction for anxious but not avoidant attachments. For cannabis, there was evidence of interaction for both anxious and avoidant attachments, although the interaction for anxious attachments was more substantial. There is no evidence of interaction for binge drinking. Results are consistent with a generic reward deficit hypothesis of drug addiction for which the 7R+ disposition may play a role. Interaction between 7R+ alleles and attachment insecurity may intensify risk for problematic tobacco and cannabis use.

  10. 30 CFR 77.1436 - Drum end attachment.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Drum end attachment. 77.1436 Section 77.1436... Hoisting Wire Ropes § 77.1436 Drum end attachment. (a) For drum end attachment, wire rope shall be attached... anchor bolts, clamps, or wedges, provided that the attachment is a design feature of the hoist...

  11. Give Them Roots, Then Let Them Fly: Understanding Attachment Therapy.

    Science.gov (United States)

    McKelvey, Carole A., Ed.

    This book describes attachment theory, presents the attachment therapy program in place at the Evergreen Attachment Center at Evergreen, Colorado, and examines the implications of attachment therapy. The chapters are: (1) "An Overview" (Carole A. McKelvey, John Alston); (2) "Attachment Theory and Assessment" (Michael Orlans, Terry Levy); (3)…

  12. Clinical evaluation of mandibular implant overdentures via Locator implant attachment and Locator bar attachment

    Science.gov (United States)

    Seo, Yong-Ho; Bae, Eun-Bin; Kim, Jung-Woo; Lee, So-Hyoun; Jeong, Chang-Mo; Jeon, Young-Chan

    2016-01-01

    PURPOSE The aim of this study was to evaluate the clinical findings and patient satisfaction on implant overdenture designed with Locator implant attachment or Locator bar attachment in mandibular edentulous patients. MATERIALS AND METHODS Implant survival rate, marginal bone loss, probing depth, peri-implant inflammation, bleeding, plaque, calculus, complications, and satisfaction were evaluated on sixteen patients who were treated with mandibular overdenture and have used it for at least 1 year (Locator implant attachment: n=8, Locator bar attachment: n=8). RESULTS Marginal bone loss, probing depth, plaque index of the Locator bar attachment group were significantly lower than the Locator implant attachment group (P.05). The replacement of the attachment components was the most common complication in both groups. Although there was no correlation between marginal bone loss and plaque index, a significant correlation was found between marginal bone loss and probing depth. CONCLUSION The Locator bar attachment group indicates lesser marginal bone loss and need for maintenance, as compared with the Locator implant attachment group. This may be due to the splinting effect among implants rather than the types of Locator attachment. PMID:27555901

  13. The type III manufactory

    CERN Document Server

    Palcoux, Sébastien

    2011-01-01

    Using unusual objects in the theory of von Neumann algebra, as the chinese game Go or the Conway game of life (generalized on finitely presented groups), we are able to build, by hands, many type III factors.

  14. Workshop 96. Part III

    International Nuclear Information System (INIS)

    Part III of the proceedings contain 155 contributions in various fields of science and technology including nuclear engineering, environmental science, and biomedical engineering. Out of these, 10 were selected to be inputted in INIS. (P.A.)

  15. Cryogenic devices attached to electron accelerators

    International Nuclear Information System (INIS)

    The cryoeenic equipement attached to electron accelerators used at the CEN.G for fundamental research on point defects in solids is presented and some of their essential technical characteristics are briefly described

  16. Attachment and the Roots of Competence.

    Science.gov (United States)

    Sroufe, L. Alan

    1981-01-01

    Describes research with 12- to 18-month-old infants (N=108) determining whether the quality of an infant's attachment to his/her primary caregiver could predict the nature of his/her emerging personality. (CS)

  17. Are anxiously attached women better mindreaders?

    Science.gov (United States)

    Hünefeldt, Thomas; Laghi, Fiorenzo; Ortu, Francesca

    2013-08-01

    This research was aimed at providing first evidence concerning the relationship between adults' self-reported attachment style and their performance on a standard 'theory of mind' task. Based on adult attachment theory, we hypothesized that the two dimensions of self-reported adult attachment, anxiety and avoidance, are differently related to 'theory of mind,' and that this relationship is moderated by variables concerning the 'theory of mind' stimuli. The 'Experiences in Close Relationships' questionnaire and the 'Reading the Mind in the Eyes' test were administered to 132 young women. In line with our expectations, women's attachment-related anxiety was associated with better mind reading concerning stimuli that were emotionally neutral or difficult to recognize.

  18. Influence of employees' attachment styles on their life satisfaction as mediated by job satisfaction and burnout.

    Science.gov (United States)

    Reizer, Abira

    2015-01-01

    The aim of this study was to obtain better insight into the associations between attachment styles and employees' life satisfaction. This was achieved by examining the mediating roles of burnout and job satisfaction. Three hundred and thirty-nine employees, from a convenience community sample, participated in the current study. Results of the mediation model indicated that the associations between avoidance and life satisfaction were mediated by burnout and job satisfaction. However, the associations between attachment anxiety and life satisfaction were mediated by burnout but not by job satisfaction. Theoretical and practical implications for organizations and for attachment theory at work are discussed.

  19. Attachment organization in Arabic-speaking refugees with post traumatic stress disorder

    DEFF Research Database (Denmark)

    Riber, Karin

    2015-01-01

    As a part of an ongoing clinical study of refugees with post traumatic stress disorder (PTSD), the primary objective of the current study was to examine and describe the distribution of adult attachment patterns as assessed by the Adult Attachment Interview (AAI) in Arabic-speaking refugees....... A total of 43 adult male and female refugees with Iraqi and Palestinian backgrounds completed the AAI. Sixty-seven percent of the sample was classified as Unresolved with respect to loss or trauma and a substantial proportion of insecure attachment representations (14% Secure-Autonomous, 39% Dismissing...

  20. Monitoring of living cell attachment and spreading using reverse symmetry waveguide sensing

    DEFF Research Database (Denmark)

    Horvath, R.; Pedersen, H.C.; Skivesen, N.;

    2005-01-01

    The effect of the attachment and spreading of living cells on the modes of a grating coupled reverse symmetry waveguide sensor is investigated in real time. The reverse symmetry design has an increased probing depth into the sample making it well suited for the monitoring of cell morphology....... As a result, significant changes in the incoupling peak height and peak shape were observed during cell attachment and spreading. It is suggested that the area under the incoupling peaks reflects the initial cell attachment process, while the mean peak position is mostly governed by the spreading of the cells...

  1. Detection of gene amplification in MYCN, C-MYC, MYCL1, ERBB2, EGFR, AKT2, and human papilloma virus in samples from cervical smear normal cytology, intraepithelial cervical neoplasia (CIN I, II, III, and cervical cancer

    Directory of Open Access Journals (Sweden)

    Dabeiba Adriana García

    2011-06-01

    Full Text Available Introducción: El cáncer cervical es el segundo cáncer más importante en mujeres a nivel mundial y es la segunda causa de muerte por cáncer en mujeres. Se ha demostrado que el proceso de carcinogénesis cervical presenta componentes tanto genéticos como epigenéticos y medio ambientales. En la actualidad, hay gran interés en la búsqueda de marcadores moleculares asociados con la progresión de esta enfermedad, uno de los posibles mecanismos y que además está poco estudiado en cáncer cervical es la amplificación génica de algunos oncogenes como la familia MYC, EGFR y AKT entre otros. Objetivos: Detectar la amplificación génica de MYCN, C-MYC, MYCL1, ERBB2, EGFR y AKT2 además de la presencia del virus de papiloma humano en cepillados cervicales en mujeres con citología normal o con neoplasia intraepitelial cervical (NIC I, II y III o con cáncer cervical. Métodos: Se genotipificó mediante reverse line blot (RLB el virus de papiloma humano (VPH y se determinó el estado de amplificación génica de los genes mencionados mediante PCR en tiempo real utilizando sondas taqman. Resultados: El VPH se encontró presente en 4% de las pacientes con citología normal, en 48% en NIC I, 63.6% en NIC II, 64% en NIC III y 70.8% en cáncer cervical. Los genes MYCN, MYCL1 y ERBB2 mostraron mayor amplificación en lesiones de alto grado y cáncer con diferencias estadísticamente significativas  a las lesiones de bajo grado y citología normal, en 39.1%, 34.7% y 30.4% respectivamente. Además, se encontraron amplificados los genes C-MYC, EGFR y AKT2, en muestras de pacientes con cáncer cervical, en 12%, 18% y 13% respectivamente. Sin embargo, no se observaron diferencias estadísticamente significativas con respecto a las lesiones de alto y bajo grado y citología normal. Conclusión: En las lesiones de alto grado como en cáncer cervical, se encuentra mayor prevalencia del virus al igual que se detectan mayor cantidad de alteraciones gen

  2. Attachment of Gold Nanoparticles to Carbon Nanotubes

    Institute of Scientific and Technical Information of China (English)

    Xi Cheng MA; Ning LUN; Shu Lin WEN

    2005-01-01

    Carbon nanotubes were initially chemically modified with an H2SO4-HNO3 treatment,and subsequently activated with Pd-Sn catalytic nuclei via a one-step activation approach. These activated nanotubes were used as precursors for obtaining gold nanoparticles-attached nanotubes via simple electroless plating. This approach provides an efficient method for attachment of metal nanostructures to carbon nanotubes. Such novel hybrid nanostructures are attractive for many applications.

  3. God as an Attachment Figure : A Case Study of the God Attachment Language and God Concepts of Anxiously Attached Christian Youths in South Africa

    NARCIS (Netherlands)

    Counted, Victor

    2016-01-01

    This study examines the role of the Christian God as an attachment figure, using the attachment language criteria of a strong and enduring affectionate bond. Respondents were 15 anxiously attached Christian youths, purposefully selected for in-depth interviews to explore their God attachment languag

  4. Removable partial overdentures with mechanical (precision) attachments.

    Science.gov (United States)

    Mensor, M C

    1990-10-01

    Mechanical attachments for overdentures have been available in various forms for over a century. The explosive interest in osseointegration and the effort on the part of the profession to avoid the complete denture as a treatment modality has stirred the interest in positive retentive elements for overdentures represented by the mechanical stud and bar attachments. The cited references provide a resource as a trouble-free guide in the selection and use of the various stud and bar attachment systems. The clinical examples show a pattern of application not generally discussed by the manufacturers, illustrating the simplicity of use with the options for all attachments including magnets. The discussion on magnets comes from 9 years of clinical experience. Rare earth magnets provide excellent adjunct retention, and their assembly follows the same protocol and complexity as stud attachment systems. All magnets, at the present state of the art, have a corrosion potential with the exception of the Laser Sealed Units (Golden Dental, Golden, CO). Finally, the mechanics of the attachment overdenture serves as an excellent training field for the osseointegrated prosthesis, be it the classic Brånemark (Nobelpharma USA, Chicago, IL) restorative or the implant overdenture concept. PMID:2227040

  5. Attachment Theory and the Social Work Curriculum

    Directory of Open Access Journals (Sweden)

    Timothy Page

    2007-05-01

    Full Text Available Attachment theory, as developed by Bowlby and Ainsworth, represented a major departure from the current theories of human development of the time, particularly in its rejection of the major tenets of psychoanalytic theory and its integration of core ideas from evolution theory and cybernetics (Ainsworth & Bowlby, 1991. Attachment theory posits that a foundational human instinct, the desire to achieve safety and protection through proximity to a protective figure, is responsible for the formation of a special class of life-long affectional bonds, referred to as “attachments.” Emotional security is derived to a great extent, according to the theory, from experience with caregivers who are consistently responsive to the developing infant’s expression of attachment behavior toward them. Forty years of empirical research has shown that attachment is a universal characteristic that predicts children’s development of cognitive and social competence, emotional regulation, and positive self-image (Weinfield, Sroufe, Egeland, & Carlson, 1999. Social work educators are currently challenged to better integrate the findings of attachment research into their curricula to reflect more the current state of developmental science.

  6. Childhood Trauma and Attachment to Birth Parents in Foster Children. An Empirical Study.

    OpenAIRE

    Skjold, Solvei Harila

    2010-01-01

    Traumatic childhood experiences, posttraumatic stress symptoms (PTSS), and aspects of attachment behavior towards birth parents are assessed in a sample of 80 young individuals who have been or are currently in foster care in Norway. Associations between traumatic childhood experiences, posttraumatic stress symptoms, and attachment to birth parents are explored. Traumatic childhood experiences were assessed with a Norwegian version of the Childhood Trauma Questionnaire (CTQ). ...

  7. Attachment, recalled parental rearing, and ADHD symptoms predict emotion processing and alexithymia in adults with ADHD

    OpenAIRE

    Edel, Marc-Andreas; Edel, Susanne; Krüger, Marie; Assion, Hans-Jörg; Juckel, Georg; Brüne, Martin

    2015-01-01

    Background The aim of the aricle is to study the relationship between attachment, parental rearing behavior, and (infant and current) ADHD symptoms with emotion processing and alexithymia in adults with ADHD. Methods Attachment, parental behavior, and ADHD variables were tested for predictive value regarding emotion processing and alexithymia in the total sample, the pooled ADHD groups (with inattentive type and combined type, each with n = 26) and a control group (n = 26). Comparisons were p...

  8. Longitudinal association between infant disorganized attachment and childhood posttraumatic stress symptoms

    OpenAIRE

    MacDonald, Helen Z.; Beeghly, Marjorie; GRANT-KNIGHT, WANDA; AUGUSTYNs, MARILYN; WOODS, RYAN W.; Cabral, Howard; Rose-Jacobs, Ruth; Saxe, Glenn N.; Frank, Deborah A.

    2008-01-01

    The purpose of this study was to evaluate whether children with a history of disorganized attachment in infancy were more likely than children without a history of disorganized attachment to exhibit symptoms of posttraumatic stress disorder (PTSD) at school age following trauma exposure. The sample consisted of 78 8.5-year-old children from a larger, ongoing prospective study evaluating the effects of intrauterine cocaine exposure (IUCE) on children's growth and development from birth to adol...

  9. Examining psychopathy from an attachment perspective: the role of fear of rejection and abandonment

    OpenAIRE

    Conradi, HJ; Boertien, SD; Cavus, H; Verschuere, Bruno

    2016-01-01

    A key feature of psychopathy, a self-centered orientation towards others and a failure to truly connect, is poorly understood. The attachment framework can be used to examine underlying interpersonal mechanisms. Because of the overall failure to connect, we anticipated, and found, in a large undergraduate sample (n=1074) that both affective-interpersonal traits and impulsive-irresponsible psychopathy facets were positively related to attachment avoidance. Different dynamics may underlie this ...

  10. Performance characteristics of postacute traumatic brain injury patients on the WAIS-III and WMS-III.

    Science.gov (United States)

    Axelrod, B N; Fichtenberg, N L; Liethen, P C; Czarnota, M A; Stucky, K

    2001-12-01

    Publication of the third editions of the Wechsler intelligence and memory batteries in 1997 created a need for research identifying Wechsler Adult Intelligence Scale-Third Edition/Wechsler Memory Scale-Third Edition (WAIS-III/WMS-III) profile patterns associated with neuropathology. The WAIS-III/WMS-III Technical Manual offers data on various diagnostic groups, including traumatic brain injury (TBI). Hawkins (1998) employed Technical Manual data to propose certain diagnostic guidelines. In order to validate the conclusions put forth by Hawkins as they apply to brain injury, we examined WAIS-III and WMS-III profiles in an independent sample of 46 TBI cases. As expected, the WAIS-III Processing Speed Index (PSI) was more sensitive to brain injury than other WAIS-III composites; and specific WAIS-III scores were stronger than certain WMS-III scores. On the other hand, the predicted relationship for WMS-III auditory and visual indexes was not found. The lack of specificity for TBI of the proposed index comparisons confirms the need to validate such hypotheses in independent samples.

  11. Structure, attachment properties, and ecological importance of the attachment system of English ivy (Hedera helix)

    OpenAIRE

    Melzer, Björn; Seidel, Robin; Steinbrecher, Tina; Speck, Thomas

    2011-01-01

    Root climbers such as English ivy (Hedera helix) rely on specialized adventitious roots for attachment, enabling the plants to climb on a wide range of natural and artificial substrates. Despite their importance for the climbing habit, the biomechanical properties of these specialized adventitious roots compared with standard roots and their performance in the attachment to different host species or inert substrates have not been studied. Here organs and tissues involved in the attachment are...

  12. Neurobiology of secure infant attachment and attachment despite adversity: a mouse model

    OpenAIRE

    Roth, T.L.; Raineki, C.; Salstein, L.; Perry, R; Wilson, T. A. Sullivan; Sloan, A.; Lalji, B.; Hammock, E.; Wilson, D. A.; Levitt, P; Okutani, F.; Kaba, H. (Harry); R.M. Sullivan

    2013-01-01

    Attachment to an abusive caregiver has wide phylogenetic representation, suggesting that animal models are useful in understanding the neural basis underlying this phenomenon and subsequent behavioral outcomes. We previously developed a rat model, in which we use classical conditioning to parallel learning processes evoked during secure attachment (odor-stroke, with stroke mimicking tactile stimulation from the caregiver) or attachment despite adversity (odor-shock, with shock mimicking maltr...

  13. Insecure Attachment, Dysfunctional Attitudes, and Low Self-Esteem Predicting Prospective Symptoms of Depression and Anxiety during Adolescence

    Science.gov (United States)

    Lee, Adabel; Hankin, Benjamin L.

    2009-01-01

    This study extends the existing adult literature on insecure attachment as a predictor of depression and anxiety by examining these pathways in a sample of adolescents. In addition, dysfunctional attitudes and low self-esteem were tested as mediators of the association between insecure attachment and symptoms of depression and anxiety. Youth (N =…

  14. Anger and hostility in adolescents: relationships with self-reported attachment style and perceived parental rearing styles.

    NARCIS (Netherlands)

    Muris, P.; Meesters, C.; Morren, M.; Moorman, L.

    2004-01-01

    OBJECTIVE: To examine relationships between self-reported attachment style and parental rearing behaviors, on the one hand, and anger/hostility, on the other hand, in a sample of nonclinical adolescents (N=441). METHOD: Participants completed (a) a single-item measure of attachment style; (b) a ques

  15. The Role of Adolescent Attachment in Moderating and Mediating the Links between Parent and Adolescent Psychological Symptoms

    Science.gov (United States)

    Woodhouse, Susan S.; Ramos-Marcuse, Fatima; Ehrlich, Katherine B.; Warner, Stephanie; Cassidy, Jude

    2010-01-01

    The present study examined whether adolescent attachment security and attachment-related representations moderate and mediate, respectively, the link between parent symptoms (depressive and anxiety) and adolescent depressive symptoms. Participants were 189 (118 girls) eleventh graders and their parents in a community sample. Results showed that…

  16. The Moderating Role of Father's Care on the Onset of Binge Eating Symptoms among Female Late Adolescents with Insecure Attachment

    Science.gov (United States)

    Pace, Ugo; Cacioppo, Marco; Schimmenti, Adriano

    2012-01-01

    The present study examined the association between quality of attachment, perception of the father's bond, and binge eating symptoms in a sample of female late adolescents. In total, 233 female students aged between 18 and 20 years completed measures on binge eating, quality of attachment and parent-child relationship. Data showed that respondents…

  17. Attachment as an organizer of behavior: implications for substance abuse problems and willingness to seek treatment

    Directory of Open Access Journals (Sweden)

    Troutman Beth

    2006-11-01

    Full Text Available Abstract Background Attachment theory allows specific predictions about the role of attachment representations in organizing behavior. Insecure attachment is hypothesized to predict maladaptive emotional regulation whereas secure attachment is hypothesized to predict adaptive emotional regulation. In this paper, we test specific hypotheses about the role of attachment representations in substance abuse/dependence and treatment participation. Based on theory, we expect divergence between levels of maladaptive functioning and adaptive methods of regulating negative emotions. Methods Participants for this study consist of a sample of adoptees participating in an ongoing longitudinal adoption study (n = 208. The Semi-Structured Assessment of the Genetics of Alcohol-II 41 was used to determine lifetime substance abuse/dependence and treatment participation. Attachment representations were derived by the Adult Attachment Interview [AAI; 16]. We constructed a prior contrasts reflecting theoretical predictions for the association between attachment representations, substance abuse/dependence and treatment participation. Results Logistic regression was used to test our hypotheses. As predicted, individuals classified as dismissing, preoccupied or earned-secure reported the highest rates of substance abuse/dependence. Individuals classified as dismissing reported significantly lower rates of treatment participation despite their high rates of substance abuse/dependence. As expected, the continuous-secure group reported lowest rates of both substance abuse/dependence and treatment participation. Conclusion The findings from this study identify attachment representations as an influential factor in understanding the divergence between problematic substance use and treatment utilization. The findings further imply that treatment may need to take attachment representations into account to promote successful recovery.

  18. Coronal type III radio bursts and their X-ray flare and interplanetary type III counterparts

    CERN Document Server

    Reid, Hamish A S

    2016-01-01

    Type III bursts and hard X-rays are both produced by flare energetic electron beams. The link between both emissions has been investigated in many previous studies, but no statistical studies have compared both coronal and interplanetary type III bursts with X-ray flares. Using coronal radio events above 100 MHz exclusively from type III bursts, we revisited long-standing questions: Do all coronal type III bursts have X-ray counterparts. What correlation, if any, occurs between radio and X-ray intensities. What X-ray and radio signatures above 100 MHz occur in connection with interplanetary type III bursts below 14 MHz. We analysed data from 2002 to 2011 starting with coronal type III bursts above 100 MHz. We used RHESSI X-ray data greater than 6 keV to make a list of 321 events that have associated type III bursts and X-ray flares, encompassing at least 28 percent of the initial sample of type III events. We examined the timings, intensities, associated GOES class, and any interplanetary radio signature. For...

  19. Childhood adversity, attachment and personality styles as predictors of anxiety among elderly caregivers.

    Science.gov (United States)

    Prigerson, H G; Shear, M K; Bierhals, A J; Zonarich, D L; Reynolds, C F

    1996-01-01

    The purpose of this study was to examine the ways in which childhood adversity, attachment and personality styles influenced the likelihood of having an anxiety disorder among aged caregivers for terminally ill spouses. We also sought to determine how childhood adversity and attachment/personality styles jointly influenced the likelihood of developing an anxiety disorder among aged caregivers. Data were derived from semistructured interviews with 50 spouses (aged 60 and above) of terminally ill patients. The Childhood Experience of Care and Abuse (CECA) record provided retrospective, behaviorally based information on childhood adversity. Measures of attachment and personality styles were obtained from self-report questionnaires, and the Structured Clinical Interview for the DSM-III-R (SCID) was used to determine diagnoses for anxiety disorders. Logistic regression models estimated the effects of childhood adversity, attachment/personality disturbances, and the interaction between the two on the likelihood of having an anxiety disorder. Results indicated that childhood adversity and paranoid, histrionic and self-defeating styles all directly increase the odds of having an anxiety disorder as an elderly spousal caregiver. In addition, childhood adversity in conjunction with borderline, antisocial and excessively dependent styles increased the likelihood of having an anxiety disorder. The results indicate the need to investigate further the interaction between childhood experiences and current attachment/personality styles in their effects on the development of anxiety disorders.

  20. The Relationship between Styles of Attachment to God and Forgiveness and Empathy among Female Students in the City of Qom

    Directory of Open Access Journals (Sweden)

    Mahsa Rashidi

    2016-04-01

    Full Text Available Forgiveness and empathy are factors which are influential in improving the relationships between people, themselves can be affected by various factors in turn. The purpose of this research was to investigate the relationship between the styles of attachment to God and forgiveness and empathy among female students in the city of Qom. 250 students were selected from the city of Qom by cluster sampling. Three questionnaires were used: styles of attachment to God by Kirkpatrick and Rowatt, emotional empathy by Mehrabian and Epstein and forgiveness inventory by Enzeit. Pearson correlation and Regression analysis were used for data analysis. The style of secure attachment to God had a significantly positive relationship with forgiveness and empathy. Furthermore, the style of avoidant attachment to God and the style of bilateral attachment to God had a significantly negative relationship with forgiveness. In addition, the standard coefficients of all three predictive variables (Secure attachment, bilateral and avoidant to God were all significant at p=0.05. Assessment and recognition of the style of attachment to God, the students and its relation with forgiveness and empathy can have valuable implications in providing the mental health of the students. Conclusion: The findings of this research show a connection between the style of attachment to God and forgiveness and empathy, indicate the clarification of attachment to God in students' forgiveness and empathy. Based on the findings, it can be suggested that the theory of attachment to God can be used in psychotherapy.

  1. Parental attachment, self-control, and depressive symptoms in Chinese and Italian adolescents: Test of a mediation model.

    Science.gov (United States)

    Li, Jian-Bin; Delvecchio, Elisa; Lis, Adriana; Nie, Yan-Gang; Di Riso, Daniela

    2015-08-01

    The current study investigated the relationship between parental attachment and depressive symptoms as well as the mediating effect of self-control in two different cultures. Samples were 1305 Chinese and 1327 Italian adolescents. They completed the Inventory of Parental and Peer Attachment, the Self-Restraint Subscale of the Adolescents' Self-Consciousness Scale, and the Children's Depression Inventory that assessed parental attachment, self-control, and depressive symptoms, respectively. Results showed that: (1) Few cultural differences in depressive symptom were observed. (2) Parental attachment and self-control were negatively related to depressive symptoms in both cultures. (3) Self-control mediated the relations between parental attachment and depressive symptoms in both cultures. (4) The direct and indirect effects were invariant across cultures. In conclusion, parental attachment and self-control are important for adolescents' depressive symptoms in Chinese and Italian adolescents. PMID:26132371

  2. Assessment of Sleep in Children with Mucopolysaccharidosis Type III

    OpenAIRE

    Mahon, Louise Victoria; Lomax, Michelle; Grant, Sheena; Cross, Elaine; Hare, Dougal Julian; Wraith, James Ed; Jones, Simon; Bigger, Brian; Langford-Smith, Kia; Canal, Maria

    2014-01-01

    Sleep disturbances are prevalent in mucopolysaccharidosis Type III (MPS III), yet there is a lack of objective, ecologically valid evidence detailing sleep quantity, quality or circadian system. Eight children with MPS III and eight age-matched typically developing children wore an actigraph for 7–10 days/nights. Saliva samples were collected at three time-points on two separate days, to permit analysis of endogenous melatonin levels. Parents completed a sleep questionnaire and a daily sleep ...

  3. Attachment, Sexual Assertiveness, and Sexual Outcomes in Women with Provoked Vestibulodynia and Their Partners: A Mediation Model.

    Science.gov (United States)

    Leclerc, Bianca; Bergeron, Sophie; Brassard, Audrey; Bélanger, Claude; Steben, Marc; Lambert, Bernard

    2015-08-01

    Provoked vestibulodynia (PVD) is a prevalent women's sexual pain disorder, which is associated with sexual function difficulties. Attachment theory has been used to understand adult sexual outcomes, providing a useful framework for examining sexual adaptation in couples confronted with PVD. Research to date indicates that anxious and avoidant attachment dimensions correlate with worse sexual outcomes in community and clinical samples. The present study examined the association between attachment, pain, sexual function, and sexual satisfaction in a sample of 101 couples in which the women presented with PVD. The actor-partner interdependence model was used in order to investigate both actor and partner effects. This study also examined the role of sexual assertiveness as a mediator of these associations via structural equation modeling. Women completed measures of pain intensity and both members of the couple completed measures of romantic attachment, sexual assertiveness, sexual function, and satisfaction. Results indicated that attachment dimensions did not predict pain intensity. Both anxious and avoidant attachment were associated with lower sexual satisfaction. Only attachment avoidance predicted lower sexual function in women. Partner effects indicated that higher sexual assertiveness in women predicted higher sexual satisfaction in men. Finally, women's sexual assertiveness was found to be a significant mediator of the relationship between their attachment dimensions, sexual function, and satisfaction. Findings highlight the importance of examining how anxious and avoidant attachment may lead to difficulties in sexual assertiveness and to less satisfying sexual interactions in couples where women suffer from PVD. PMID:24777439

  4. Parental incarceration, attachment and child psychopathology.

    Science.gov (United States)

    Murray, Joseph; Murray, Lynne

    2010-07-01

    Theory and evidence relating parental incarceration, attachment, and psychopathology are reviewed. Parental incarceration is a strong risk factor for long-lasting psychopathology, including antisocial and internalizing outcomes. Parental incarceration might threaten children's attachment security because of parent-child separation, confusing communication about parental absence, restricted contact with incarcerated parents, and unstable caregiving arrangements. Parental incarceration can also cause economic strain, reduced supervision, stigma, home and school moves, and other negative life events for children. Thus, there are multiple possible mechanisms whereby parental incarceration might increase risk for child psychopathology. Maternal incarceration tends to cause more disruption for children than paternal incarceration and may lead to greater risk for insecure attachment and psychopathology. Children's prior attachment relations and other life experiences are likely to be of great importance for understanding children's reactions to parental incarceration. Several hypotheses are presented about how prior insecure attachment and social adversity might interact with parental incarceration and contribute to psychopathology. Carefully designed longitudinal studies, randomized controlled trials, and cross-national comparative research are required to test these hypotheses.

  5. Surface-attachment sequence in Vibrio Cholerae

    Science.gov (United States)

    Utada, Andrew; Gibiansky, Maxsim; Wong, Gerard

    2013-03-01

    Vibrio cholerae is a gram-negative bacterium that causes the human disease cholera. It is found natively in brackish costal waters in temperate climates, where it attaches to the surfaces of a variety of different aquatic life. V. cholerae has a single polar flagellum making it highly motile, as well as a number of different pili types, enabling it to attach to both biotic and abiotic surfaces. Using in-house built tracking software we track all surface-attaching bacteria from high-speed movies to examine the early-time attachment profile of v. cholerae onto a smooth glass surface. Similar to previous work, we observe right-handed circular swimming trajectories near surfaces; however, in addition we see a host of distinct motility mechanisms that enable rapid exploration of the surface before forming a more permanent attachment. Using isogenic mutants we show that the motility mechanisms observed are due to a complex combination of hydrodynamics and pili-surface interactions. Lauga, E., DiLuzio, W. R., Whitesides, G. M., Stone, H. A. Biophys. J. 90, 400 (2006).

  6. Lutetium(III cyclotetraphosphate

    Directory of Open Access Journals (Sweden)

    Aïcha Mbarek

    2010-06-01

    Full Text Available Single crystals of the title compound, tetralutetium(III tris(cyclotetraphosphate, Lu4(P4O123, were obtained by solid-state reaction. The cubic structure is isotypic with its AlIII and ScIII analogues and is built up from four-membered (P4O124− phosphate ring anions (overline{4} symmetry, isolated from each other and further linked through isolated LuO6 octahedra (.3. symmetry via corner sharing. Each LuO6 octahedron is linked to six (P4O124− rings, while each (P4O124− ring is linked to eight LuO6 octahedra.

  7. Fusion Power Demonstration III

    International Nuclear Information System (INIS)

    This is the third in the series of reports covering the Fusion Power Demonstration (FPD) design study. This volume considers the FPD-III configuration that incorporates an octopole end plug. As compared with the quadrupole end-plugged designs of FPD-I and FPD-II, this octopole configuration reduces the number of end cell magnets and shortens the minimum ignition length of the central cell. The end-cell plasma length is also reduced, which in turn reduces the size and cost of the end cell magnets and shielding. As a contiuation in the series of documents covering the FPD, this report does not stand alone as a design description of FPD-III. Design details of FPD-III subsystems that do not differ significantly from those of the FPD-II configuration are not duplicated in this report

  8. Postpartum bonding: the impact of maternal depression and adult attachment style.

    Science.gov (United States)

    Nonnenmacher, N; Noe, D; Ehrenthal, J C; Reck, C

    2016-10-01

    Maternal depression poses a risk for the developing mother-infant relationship. Similarly, maternal insecure attachment styles may limit the ability to adequately connect with the newborn during the postpartum period. The aim of this study was to investigate the effect of maternal depression and insecure attachment (insecure and dual/disorganized) on maternal bonding in a sample of n = 34 women with depression according to DSM-IV and n = 59 healthy women. Maternal depression was assessed 3 to 4 months postpartum with the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I), bonding with the Postpartum Bonding Questionnaire, and maternal attachment style with the Attachment Style Interview. Women with current and lifetime depression as well as women with dual/disorganized attachment style reported lower bonding. Explorative analysis revealed that depression partially mediated the link between dual/disorganized attachment style and bonding with a medium-sized mediation effect. The combination of maternal depression and dual/disorganized attachment style may pose a special risk constellation for the developing mother-infant bond that should be addressed in prevention and early intervention programs.

  9. Spectral Properties of AGN with Very Weak [O III] Lines

    Directory of Open Access Journals (Sweden)

    Kovacevic, J.

    2011-06-01

    Full Text Available The spectral properties of a sample of 58 Active GalacticNuclei (AGN spectra, in which emission [O~III] $lambdalambda$4959, 5007 AA lines are weak or totally absent, are analyzed. In order to investigate thephysical reason for the [O~III] emission suppression, the spectral propertiesof the weak [O~III] spectra sample are compared with the same properties of asample of 269 spectra with the strong [O~III] lines. The spectra are obtainedfrom Sloan Digital Sky Survey (SDSS Database. It is found that the objectswith the weak or absent [O~III] $lambdalambda$4959, 5007 AA linesgenerally have the high continuum luminosities (log($lambda$L$_{5100}$ $>$45, that they are very rare at smaller redshifts ($z <$ 0.3 and that theyusually have strong starburst influence. From the sample with weak or absent[O~III] lines, two boundary subgroups may be distinguished: the subgroup witha strong H$beta$ narrow component and subgroup with a very weak or negligibleH$beta$ narrow component. The physical causes for the [O~III] linessuppressing are probably different in these two subgroups: the [O~III] linesare absent in objects with strong narrow H$beta$ probably because of strongstarburst (SB activity, which produces high density of the gas, while in theobjects with the negligible narrow H$beta$, the reason for [O~III] and narrowH$beta$ suppression may be a low covering factor.

  10. III-V microelectronics

    CERN Document Server

    Nougier, JP

    1991-01-01

    As is well known, Silicon widely dominates the market of semiconductor devices and circuits, and in particular is well suited for Ultra Large Scale Integration processes. However, a number of III-V compound semiconductor devices and circuits have recently been built, and the contributions in this volume are devoted to those types of materials, which offer a number of interesting properties. Taking into account the great variety of problems encountered and of their mutual correlations when fabricating a circuit or even a device, most of the aspects of III-V microelectronics, from fundamental p

  11. Parent Attachment, Childrearing Behavior, and Child Attachment: Mediated Effects Predicting Preschoolers' Externalizing Behavior

    Science.gov (United States)

    Roskam, Isabelle; Meunier, Jean-Christophe; Stievenart, Marie

    2011-01-01

    Attachment theory provides an interesting background for thinking about externalizing behavior (EB) in early childhood and for understanding how parenting influences the child's outcomes. The study examined how attachment and parenting could be combined to explain preschoolers' EB. Data were collected from 117 preschoolers aged from 4 to 6…

  12. Measuring Lifestyle and Attachment: An Empirical Investigation Linking Individual Psychology and Attachment Theory

    Science.gov (United States)

    Peluso, Paul R.; Peluso, Jennifer P.; Buckner, Janine P.; Kern, Roy M.; Curlette, William

    2009-01-01

    P. R. Peluso, J. P. Peluso, J. F. White, and R. M. Kern (2004) reviewed the theoretical constructs underlying the similarities between lifestyle and attachment style. Specifically, they suggested that the individual psychology construct of lifestyle (or style of life) and attachment style should be empirically investigated. The present research…

  13. Maternal Attachment Representations, Maternal Sensitivity, and the Infant-Mother Attachment Relationship.

    Science.gov (United States)

    Pederson, David R.; Gleason, Karin E.; Moran, Greg; Bento, Sandi

    1998-01-01

    Examined the mediating role of maternal sensitivity for the association between maternal attachment representations and the quality of infant-mother attachment. Found that autonomous mothers and mothers in secure relationships were more sensitive at home than nonautonomous mothers and mothers in nonsecure relationships, respectively. Infants in…

  14. Attachment theory: a biological basis for psychotherapy?

    Science.gov (United States)

    Holmes, J

    1993-10-01

    John Bowlby bemoaned the separation between the biological and psychological approaches in psychiatry, and hoped that attachment theory, which brings together psychoanalysis and the science of ethology, would help bridge the rift between them. Recent findings in developmental psychology have delineated features of parent-infant interaction, especially responsiveness, attunement, and modulation of affect, which lead to either secure or insecure attachment. Similar principles can be applied to the relationship between psychotherapist and patient--the provision of a secure base, the emergence of a shared narrative ('autobiographical competence'), the processing of affect, coping with loss--these are common to most effective psychotherapies and provide the basis for a new interpersonal paradigm within psychotherapy. Attachment theory suggests they rest on a sound ethological and hence biological foundation.

  15. Association of Eu(III) and Cm(III) With Halophiles

    Science.gov (United States)

    Ozaki, T.; Takenaka, Y.; Ohnuki, T.; Gillow, J. B.; Francis, A. J.

    2003-12-01

    Halophiles live in high ionic strength brine. The mechanisms of metal association with these microorganisms are poorly understood. In this study, we determined the distribution of Eu(III) and Cm(III) on halophiles, Halomonas sp. (WIPP1A) which was isolated from the Waste Isolation Pilot Plant (WIPP) repository in Carlsbad, US., Halomonas elongata (ATCC33173), Halobacterium salinarum (ATCC19700), and Halobacterium halobium (ATCC43214) and examined the coordination environment of Eu(III) adsorbed on the cells by time-resolved laser-induced fluorescence spectroscopy (TRLFS). The cells of Halomonas sp. and H. elongata were grown in media containing 10 - 15 w/v% and 3.5 - 30 w/v% NaCl, respectively. Halobacterium salinarum and H. halobium were grown in media containing 25 w/v% NaCl. The logarithmic distribution coefficient (log Kd) was measured by using the cells at the late exponential phase. After washing the cells with the same concentrations of NaCl, the cells were mixed with 1x10-6 mol dm-3 Eu(III) and 1x10-8 mol dm-3 Cm(III) at pH 5 in the same concentrations of NaCl and log Kd of Eu(III) and Cm(III) was determined. For Halomonas sp. and H. elongata, log Kd was determined as a function of NaCl concentrations. The coordination environment of Eu(III) adsorbed on the cells was estimated by TRLFS. For TRLFS measurements, samples were prepared by adding cells to a solution of 1x10-3 mol dm-3 Eu(III) with the same concentrations of NaCl as the culture media. For Halomonas sp. and H. elongata, log Kd of Cm(III) was apparently larger than that of Eu(III) at all the NaCl concentrations examined. On the other hand, log Kd of Eu(III) and Cm(III) for H. salinarum and H. halobium was almost identical. Our previous study demonstrated that non-halophiles, Chlorella vulgaris, Bacillus subtilis, and Pseudomonas fluorescens show no preferences between these elements. Chemical properties of Eu(III) and Cm(III) are almost identical. Our findings suggest that the difference in log Kd

  16. First growth curves based on the World Health Organization reference in a Nationally-Representative Sample of Pediatric Population in the Middle East and North Africa (MENA: the CASPIAN-III study

    Directory of Open Access Journals (Sweden)

    Mansourian Marjan

    2012-09-01

    Full Text Available Abstract Background The World Health Organization (WHO is in the process of establishing a new global database on the growth of school children and adolescents. Limited national data exist from Asian children, notably those living in the Middle East and North Africa (MENA. This study aimed to generate the growth chart of a nationally representative sample of Iranian children aged 10–19 years, and to explore how well these anthropometric data match with international growth references. Methods In this nationwide study, the anthropometric data were recorded from Iranian students, aged 10–19 years, who were selected by multistage random cluster sampling from urban and rural areas. Prior to the analysis, outliers were excluded from the features height-for-age and body mass index (BMI-for-age using the NCHS/WHO cut-offs. The Box-Cox power exponential (BCPE method was used to calculate height-for-age and BMI-for-age Z-scores for our study participants. Then, children with overweight, obesity, thinness, and severe thinness were identified using the BMI-for-age z-scores. Moreover, stunted children were detected using the height-for-age z-scores. The growth curve of the Iranian children was then generated from the z-scores, smoothed by cubic S-plines. Results The study population comprised 5430 school students consisting of 2312 (44% participants aged 10–14 years , and 3118 (58% with 15–19 years of age. Eight percent of the participants had low BMI (thinness: 6% and severe thinness: 2%, 20% had high BMI (overweight: 14% and obesity: 6%, and 7% were stunted. The prevalence rates of low and high BMI were greater in boys than in girls (P  Conclusions The current growth curves generated from a national dataset may be included for establishing WHO global database on children’s growth. Similar to most low-and middle income populations, Iranian children aged 10–19 years are facing a double burden of weight disorders, notably under- and

  17. Family systems theory, attachment theory, and culture.

    Science.gov (United States)

    Rothbaum, Fred; Rosen, Karen; Ujiie, Tatsuo; Uchida, Nobuko

    2002-01-01

    Family systems theory and attachment theory have important similarities and complementarities. Here we consider two areas in which the theories converge: (a) in family system theorists' description of an overly close, or "enmeshed," mother-child dyad, which attachment theorists conceptualize as the interaction of children's ambivalent attachment and mothers' preoccupied attachment; (b) in family system theorists' description of the "pursuer-distance cycle" of marital conflict, which attachment theorists conceptualize as the interaction of preoccupied and dismissive partners. We briefly review family systems theory evidence, and more extensively review attachment theory evidence, pertaining to these points of convergence. We also review cross-cultural research, which leads us to conclude that the dynamics described in both theories reflect, in part, Western ways of thinking and Western patterns of relatedness. Evidence from Japan suggests that extremely close ties between mother and child are perceived as adaptive, and are more common, and that children experience less adverse effects from such relationships than do children in the West. Moreover, in Japan there is less emphasis on the importance of the exclusive spousal relationship, and less need for the mother and father to find time alone to rekindle romantic, intimate feelings and to resolve conflicts by openly communicating their differences. Thus, the "maladaptive" pattern frequently cited by Western theorists of an extremely close mother-child relationship, an unromantic, conflictual marriage characterized by little verbal communication and a peripheral, distant father, may function very differently in other cultures. While we believe that both theories will be greatly enriched by their integration, we caution against the application of either theory outside the cultures in which they were developed.

  18. The Adolescent Unresolved Attachment Questionnaire: the assessment of perceptions of parental abdication of caregiving behavior.

    Science.gov (United States)

    West, M; Rose, S; Spreng, S; Adam, K

    2000-12-01

    This article reports on the Adolescent Unresolved Attachment Questionnaire (AUAQ), a brief questionnaire that assesses the caregiving experiences of unresolved adolescents (as recipients of caregiving). The AUAQ was developed and validated in a large normative sample (n = 691) and a sample of 133 adolescents in psychiatric treatment. It is a self-report questionnaire consisting of 3 scales with Likert-type responses ranging from strongly disagree to strongly agree. The Aloneness/Failed Protection Scale assesses the adolescent's perception of the care provided by the attachment figure. The Fear Scale taps the fear generated by the adolescent's appraisal of failed attachment figure care. The Anger/Dysregulation Scale assesses negative affective responses to the perceived lack of care from the attachment figure. All scales demonstrated satisfactory internal reliability and agreement between scores for adolescents (n = 91) from the normative sample who completed the AUAQ twice. Adolescents in the clinical sample also completed the Adult Attachment Interview (AAI; C. George, N. Kaplan, & M. Main, 1984/1985/1996); the AUAQ demonstrated high convergent validity with the AAI. PMID:11117104

  19. Occurrence of midline diastema and frenum attachments amongst school children in Nairobi, Kenya.

    Science.gov (United States)

    Kaimenyi, J T

    1998-01-01

    The aim of this study was to determine the prevalence of midline diastema, tongue tie and frenum attachments amongst school children in Nairobi. A total of 1802 children aged between 4 and 16 years were selected randomly using multistage sampling technique. To avoid oversampling in either sex, a proportionate sampling procedure was used. Thereafter, a thorough intra-oral examination was carried out using a mouth mirror under artificial or natural light with the children lying on a supine position. Presence or absence of midline interdental spaces unusually bigger than other interdental spaces were noted and recorded on a prepared dateacollection form. Accurate location of the origin of the frenum was done using Placek et al Morphological-functional classification of the labial frenum attachments. Data was analyzed manually by tally method. Results showed that 35% had upper and lower midline diastema. 55% were females and 45% were males. Their mean age was 7.6 years. 0.2% had a high lingual frenum. The commonest location of frenum attachment amongst children with lower midline diastema was the mucogingival junction (86%) whereas amongst those with upper midline diastema it was attached gingiva (50%). None of the children had frenum attachment on the interdental papilla. It was concluded that the maxilla had a higher prevalence of midline diastema than the mandible and that papillary penetrating frenum attachments amongst these patients were higher in the maxilla than the mandible. PMID:10530193

  20. A Deep Search For Faint Galaxies Associated With Very Low-redshift C IV Absorbers: III. A Galaxy Sample Complete to 0.01 L* and Evidence for Environmental Effects

    CERN Document Server

    Burchett, Joseph N; Bordoloi, Rongmon; Werk, Jessica K; Prochaska, J Xavier; Tumlinson, Jason; Willmer, C N A; O'Meara, John; Katz, Neal

    2015-01-01

    We employ a blindly selected sample of low-redshift C IV absorption systems identified in spectra from the Hubble Space Telescope (HST) Cosmic Origins Spectrograph (COS), combined with galaxy data from the Sloan Digital Sky Survey (SDSS), to study the metal-enriched circumgalactic medium (CGM) with ~100% completeness for galaxy luminosities L > 0.01 L* at z ~0.1 L* galaxies (7/8) than for less luminous galaxies (1/10). We also find that the occurrence of C IV absorbers depends strongly on the broader environment: 67% (8/12) of galaxies with rho < 150 kpc in regions of low galaxy density (regions with fewer than ten 0.1 L* galaxies within 1 Mpc) have affiliated C IV absorption while none (0/9) of the galaxies in denser regions show C IV within rho < 150 kpc. The reduced detection rate of C IV in denser environments persists for massive group dark matter halos. In contrast, H I is pervasive in the CGM without regard to mass or environment, although some of these Ly-alpha absorbers could arise in unrelated...

  1. Effect of attachment strategies on bipartite networks

    DEFF Research Database (Denmark)

    Ganguly, N.; Saha, S.; Maiti, A.;

    2013-01-01

    rate. Here, we focus on the case where one of the partitions can be assumed to be fixed while the other partition grows in time as observed in the codon-gene or alphabet-word network. We show that subtle changes in growth dynamics, particularly in the attachment kernel, can lead to drastic changes...... of the emergent topological properties. We present a detail analysis of various growth strategies, including sequential and parallel addition of nodes, as well as with and without replacement attachment kernels. Analytical results have been compared with stochastic simulations as well as with real systems showing...

  2. Assortativity in generalized preferential attachment models

    CERN Document Server

    Krot, Alexander

    2016-01-01

    In this paper, we analyze assortativity of preferential attachment models. We deal with a wide class of preferential attachment models (PA-class). It was previously shown that the degree distribution in all models of the PA-class follows a power law. Also, the global and the average local clustering coefficients were analyzed. We expand these results by analyzing the assortativity property of the PA-class of models. Namely, we analyze the behavior of $d_{nn}(d)$ which is the average degree of a neighbor of a vertex of degree $d$.

  3. Beyond the dyad: do family interactions influence children's attachment representations in middle childhood?

    Science.gov (United States)

    Dubois-Comtois, Karine; Moss, Ellen

    2008-12-01

    This study examines the influence of mother-child and family interactions on the development of child attachment representations in middle childhood for a sample of 49 families. Mother-child interactions were observed during a snacktime in a lab setting (Moss, Rousseau, Parent, St-Laurent, & Saintonge, 1998) when children were 5-6 years old. Three years later, children's attachment representations were assessed using a doll play narrative procedure (Solomon, George, & DeJong, 1995) in the lab setting. Within 6 months of the second lab visit, family interactions were filmed during mealtime and coded using the Mealtime Interaction Coding System (MICS; Dickstein, Hayden, Schiller, Seifer, & San Antonio, 1994). Results showed clear differences between attachment groups on quality of mother-child and family interaction with the secure/confident group showing highest and the disorganized/frightened group showing lowest quality interactions. Family interactions predicted children's attachment representations, after controlling variance explained by prior mother-child interactions.

  4. The impact of attachment security and emotion dysregulation on anxiety in children and adolescents

    DEFF Research Database (Denmark)

    Bender, Patrick K.; Sømhovd, Mikael; Pons, Francisco;

    2015-01-01

    Theoretical views and empirical findings suggest interrelations among attachment security, emotion dysregulation and anxiety in childhood and adolescence. However, the associations among the three constructs have rarely been investigated in children, and no study has yet addressed these associati...... between attachment security and anxiety was mediated by emotion dysregulation. The model was confirmed for both children and adolescents. Findings are discussed with respect to theoretical implications, as well as future directions.......Theoretical views and empirical findings suggest interrelations among attachment security, emotion dysregulation and anxiety in childhood and adolescence. However, the associations among the three constructs have rarely been investigated in children, and no study has yet addressed...... these associations in adolescence. The aim of the present study was to test a model of the interrelations among the three factors on a sample of 673 youths (age 9–16), using structural equation modelling. In accordance with theoretical conceptualisations, it was hypothesised that attachment security would relate...

  5. Influence of carbon steel grade on the initial attachment of bacteria and microbiologically influenced corrosion.

    Science.gov (United States)

    Javed, M A; Neil, W C; Stoddart, P R; Wade, S A

    2016-01-01

    The influence of the composition and microstructure of different carbon steel grades on the initial attachment (≤ 60 min) of Escherichia coli and subsequent longer term (28 days) corrosion was investigated. The initial bacterial attachment increased with time on all grades of carbon steel. However, the rate and magnitude of bacterial attachment varied on the different steel grades and was significantly less on the steels with a higher pearlite phase content. The observed variations in the number of bacterial cells attached across different steel grades were significantly reduced by applying a fixed potential to the steel samples. Longer term immersion studies showed similar levels of biofilm formation on the surface of the different grades of carbon steel. The measured corrosion rates were significantly higher in biotic conditions compared to abiotic conditions and were found to be positively correlated with the pearlite phase content of the different grades of carbon steel coupons. PMID:26785935

  6. 30 CFR 57.19026 - Drum end attachment.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Drum end attachment. 57.19026 Section 57.19026... Wire Ropes § 57.19026 Drum end attachment. (a) For drum end attachment, wire rope shall be attached— (1... bolts, clamps, or wedges, provided that the attachment is a design feature of the hoist drum....

  7. 30 CFR 56.19026 - Drum end attachment.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Drum end attachment. 56.19026 Section 56.19026... Ropes § 56.19026 Drum end attachment. (a) For drum end attachment, wire rope shall be attached— (1... bolts, clamps, or wedges, provided that the attachment is a design feature of the hoist drum....

  8. 30 CFR 75.1436 - Drum end attachment.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Drum end attachment. 75.1436 Section 75.1436... attachment. (a) For drum end attachment, wire rope shall be attached— (1) Securely by clips after making one... that the attachment is a design feature of the hoist drum. Design feature means either the...

  9. Attachment and the Processing of Social Information in Adolescence

    Science.gov (United States)

    Dykas, Matthew J.; Cassidy, Jude

    2007-01-01

    A key proposition of attachment theory is that experience-based cognitive representations of attachment, often referred to as internal working models of attachment, influence the manner in which individuals process attachment-relevant social information (Bowlby, 1969/1982, 1973, 1980; Bretherton & Munholland, 1999; Main, Kaplan, & Cassidy, 1985).…

  10. Summary of Session III

    OpenAIRE

    Furman, M.A.

    2002-01-01

    This is a summary of the talks presented in Session III "Simulations of Electron-Cloud Build Up" of the Mini-Workshop on Electron-Cloud Simulations for Proton and Positron Beams ECLOUD-02, held at CERN, 15-18 April 2002.

  11. Metallothionein (MT)-III

    DEFF Research Database (Denmark)

    Carrasco, J; Giralt, M; Molinero, A;

    1999-01-01

    Metallothionein-III is a low molecular weight, heavy-metal binding protein expressed mainly in the central nervous system. First identified as a growth inhibitory factor (GIF) of rat cortical neurons in vitro, it has subsequently been shown to be a member of the metallothionein (MT) gene family...

  12. Attachment Styles in Sufferers of Gender Identity Disorder in Fars Province in 2014

    Directory of Open Access Journals (Sweden)

    Mahmoodi

    2016-02-01

    Full Text Available Background Gender identity disorder (GID is considered as a very complicated clinical case and there are usually various variables in the inside-family-communication atmosphere. Objectives The aim of this study was to determine attachment styles in people with GID and compare them with normal people in Fars province, Iran. Materials and Methods This case-control study with accessible sampling was conducted in Fars province, Iran, in 2014 using 60 visitors to the Fars province forensics head office who had been diagnosed as having GID by the commission of psychology (the case group and 204 individuals in dispose, whom psychologists diagnosed as having no psychological disorder and in synchronization with the sample group (controls. The demographic questionnaire and Collins and Read attachment style questionnaires were used in both groups. Data were collected and then analyzed using the SPSS software version 18, Kormogrov Smirnov’s normality test and Pearson’s correlation coefficient. A significance level of P < 0.05 was considered significant. Results Findings showed that the highest frequency (71% in terms of secure attachment and the lowest frequency (0% in terms of avoidant attachment were observed in patients with GID who had been operated and the highest frequency of avoidant attachment (62.1% and the lowest frequency of secure attachment (0% were observed in patients with GID who had not been operated. Conclusions According to the findings of this study, GID patients who have been operated are more secure in attachment styles than those who have not been operated, and there is a significant correlation between age, education and gender with attachment style among these individuals.

  13. Development of Lathe Attachment for a CNC Machine

    Science.gov (United States)

    Roy, V.; Kumar, S.

    2013-04-01

    A lathe attachment has been developed for an existing CNC machine (installed with rapid prototyping attachment) using conceptual design. The CNC machine operates on mechatronic controls and a computer interface called CAMSOFT, and is used as a CNC Lathe after installing the respective attachment to it. The conceptual design phase, starts from an idea and different components of the lathe are designed as attachment using CAD modelling and is followed by fabrication phase. The lathe attachment is successfully developed and is installed to the CNC machine. The working of the CNC Lathe attachment is checked by making some machining operation like turning and thread cutting. The machining operations are successfully done. The CNC machine becomes multifunctional with the presently developed lathe attachment and the existing RP (rapid prototyping) attachment, and can be used accordingly by installing the respective attachment to it. The CNC machine is useful for carrying research work in both the fields, when installed with the appropriate attachment.

  14. Childhood Abuse and Attachment Styles of Adolescents

    Science.gov (United States)

    Karakus, Ozlem

    2012-01-01

    Introduction: The fact that emotional and social experiences in early childhood period within the family influence the experiences in adolescence and adulthood (communication skills, interpersonal relations) is not a new case. Therefore, the aim of this study is to examine the relationship between childhood abuse and attachment styles. Method: The…

  15. Should Charity Donations Have Strings Attached?

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    The commonly held belief among most people is that acts of charity are carried out with no thought of getting something in return, or of attaching conditions to those who receive donations. It’s perhaps for this rea- son that events surrounding the Henan Charity Federation’s recent decision to add an agenda to students’ financial aid caused such a public outcry.

  16. Hidden Regulators in Attachment, Separation, and Loss.

    Science.gov (United States)

    Hofer, Myron A.

    1994-01-01

    This essay discusses the similarities between animal behavior and human attachment behavior demonstrated by infants and their mothers. The provision of warmth, the tactile and olfactory stimulation of the mother's physical interactions, and the oral sensory and absorptive consequences of nursing are found to provide specific and independent…

  17. Ammonium and attachment of Rhodopirellula baltica.

    Science.gov (United States)

    Frank, Carsten S; Langhammer, Philipp; Fuchs, Bernhard Maximilian; Harder, Jens

    2011-05-01

    A dimorphic life cycle has been described for the planctomycete Rhodopirellula baltica SH1(T), with juvenile motile, free-swimming cells and adult sessile, attached-living cells. However, attachment as a response to environmental factors was not investigated. We studied the response of R. baltica to nitrogen limitation. In batch cultures, ammonium limitation coincided with a dominance of free-swimming cells and a low number of aggregates. Flow cytometry revealed a quantitative shift with increasing ammonium availability, from single cells towards attached cells in large aggregates. During growth of R. baltica on glucose and ammonium in chemostats, an ammonium addition caused a macroscopic change of the growth behaviour, from homogeneous growth in the liquid phase to a biofilm on the borosilicate glass wall of the chemostat vessel. Thus, an ammonium limitation-a carbon to nitrogen supply ratio of 30:1-sustained free-living growth without aggregate formation. A sudden increase in ammonium supply induced sessile growth of R. baltica. These observations reveal a response of Rhodopirellula baltica cells to ammonium: they abandon the free-swimming life, attach to particles and form biofilms. PMID:21340506

  18. No Strings Attached: Open Source Solutions

    Science.gov (United States)

    Fredricks, Kathy

    2009-01-01

    Imagine downloading a new software application and not having to worry about licensing, finding dollars in the budget, or incurring additional maintenance costs. Imagine finding a Web design tool in the public domain--free for use. Imagine major universities that provide online courses with no strings attached. Imagine online textbooks without a…

  19. Bowlby's attachment theory: implications for health visiting.

    Science.gov (United States)

    Partis, M

    2000-10-01

    This article reviews the current state of research in attachment theory. It also examines the relations between attachment, child care and development, and the significance of attachment to adult functioning and well-being. It seems likely that humans need close emotional relationships or bonds with others. This need applies particularly to infants, who look to parents or other care givers for love and security. The best-known psychological explanation of this need is attachment theory, which has been influential in increasing our understanding of the early mother-infant relationship, and in the formulation of guidelines for child care (Melhuish, 1998). Good-quality parental care may be difficult to define, and questions remain regarding the nature of child care and the consequences that it can have for later development. This article concludes with a discussion of the possible implications for health-visitor intervention within families, which are intended to improve the quality of the relationship between parents or care givers and the infant.

  20. Attachment Styles, Abuse Experiences and Depression

    Science.gov (United States)

    Gunduz, Bulent; Capri, Burhan; Akbay, Sinem Evin; Tunc, Aygul

    2013-01-01

    This study aims to examine the relationship between abuse experiences, depression and attachment styles. The data for this study was collected from 251 students (123 females and 128 males) who attend Mersin University. As a part of the data collection, students completed the Experiences in Affiliation Inventory, Childhood Trauma Scale and Brief…

  1. Role of Fe(III) in preventing humic interference during As(III) detection on gold electrode: Spectroscopic and voltammetric evidence

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Zhong-Gang [Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031 (China); Department of Chemistry, University of Science and Technology of China, Hefei 230026 (China); Chen, Xing; Jia, Yong; Liu, Jin-Huai [Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031 (China); Huang, Xing-Jiu, E-mail: xingjiuhuang@iim.ac.cn [Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031 (China); Department of Chemistry, University of Science and Technology of China, Hefei 230026 (China)

    2014-02-01

    Graphical abstract: - Highlights: • Humic acids interfere with the voltammetric detection of As(III) on gold electrode through adsorption and possible complexation. • Addition of Fe(III) removes this interference and helps in the electroanalytical detection of As(III). • FTIR and XPS studies suggest that the formation of Fe(III)–HA complex prevents adsorption of HA on gold and limits As–HA complex formation. - Abstract: A drawback of As(III) detection using square wave anodic stripping voltammetry (SWASV) is that it is susceptible to interferences from various metals or organic compounds, especially in real sample water. This study attempts to understand the interference of co-existing of Fe(III) and humic acid (HA) molecules to the electrochemical detection of As(III) using Fourier transform infrared (FTIR) spectrum and X-ray photoelectron spectroscopy (XPS). The electrochemical experiments include stripping of As(III) in the solutions containing HA with different concentrations, cyclic voltammetry in 0.5 M H{sub 2}SO{sub 4} in the presence of HA or Fe(III) with/without addition of Fe(III) or HA, and stripping of As(III) in the presence of HA or Fe(III) with/without addition of Fe(III) or HA. FTIR and XPS are employed to confirm the affinity of HA to Fe(III) or As(III) in acidic condition.

  2. Infant attachment, adult attachment, and maternal sensitivity: revisiting the intergenerational transmission gap.

    Science.gov (United States)

    Behrens, Kazuko Y; Haltigan, John D; Bahm, Naomi I Gribneau

    2016-08-01

    This study investigated the intergenerational transmission of attachment, utilizing the Adult Attachment Interview (AAI), the Strange Situation Procedure (SSP), and the Maternal Behavioral Q-Set (MBQS). We revisited fundamental questions in attachment theory and research by examining: (1) the level of intergenerational agreement between maternal attachment representations and infant attachment security, and (2) whether maternal sensitivity serves as an intergenerational mediator between adult and infant attachment security. Significant categorical matches between the AAI and the SSP as well as mean differences for MBQS scores between adult attachment secure-insecure groups were found. Consistent with earlier intergenerational research, maternal sensitivity only partially mediated the AAI-SSP link, indicating the transmission gap remains. Consistent with recent mediation studies, using more contemporary analytical techniques, it was confirmed that maternal sensitivity did mediate the direct pathway between AAI security and SSP security. Thus, the transmission gap appears somewhat different depending on the statistical method used to measure mediation. Post hoc analyses considered mothers' childhood experiences of separation/divorce and this helped make sense of intergenerational mismatches.

  3. Infant attachment, adult attachment, and maternal sensitivity: revisiting the intergenerational transmission gap.

    Science.gov (United States)

    Behrens, Kazuko Y; Haltigan, John D; Bahm, Naomi I Gribneau

    2016-08-01

    This study investigated the intergenerational transmission of attachment, utilizing the Adult Attachment Interview (AAI), the Strange Situation Procedure (SSP), and the Maternal Behavioral Q-Set (MBQS). We revisited fundamental questions in attachment theory and research by examining: (1) the level of intergenerational agreement between maternal attachment representations and infant attachment security, and (2) whether maternal sensitivity serves as an intergenerational mediator between adult and infant attachment security. Significant categorical matches between the AAI and the SSP as well as mean differences for MBQS scores between adult attachment secure-insecure groups were found. Consistent with earlier intergenerational research, maternal sensitivity only partially mediated the AAI-SSP link, indicating the transmission gap remains. Consistent with recent mediation studies, using more contemporary analytical techniques, it was confirmed that maternal sensitivity did mediate the direct pathway between AAI security and SSP security. Thus, the transmission gap appears somewhat different depending on the statistical method used to measure mediation. Post hoc analyses considered mothers' childhood experiences of separation/divorce and this helped make sense of intergenerational mismatches. PMID:27056466

  4. [Do Attachment Styles of Mentally Ill Parents Impact on the Health-related Quality of Life of their Children?].

    Science.gov (United States)

    Wiegand-Grefe, Silke; Bomba, Franziska; Tönnies, Sven; Bullinger, Monika; Plass, Angela

    2016-01-01

    Do Attachment Styles of Mentally Ill Parents Impact on the Health-related Quality of Life of their Children? Parents with a mental disorder often display a problematic attachment style which may impact on their children's health related quality of life (HrQoL). The current study cross-sectionally examines attachment styles (BEPE) in mentally ill parents with underage children (n = 62) and the effect of attachment on their children's HrQoL (KINDL-R). Results show that secure attachment is less represented in parents with a mental health condition than in a healthy reference group. Within the clinical sample, children of mentally ill parents with a secure attachment style exhibit a higher HrQoL than children of mentally ill parents with ambivalent or avoidant attachment styles. These findings indicate not only that problematic attachment styles frequently occur in families with a mentally ill parent, but also suggest that this negatively affects the children's HrQoL. Appropriate interventions should include attachment oriented concepts. PMID:27027217

  5. Holding Back the Tears: Individual Differences in Adult Crying Proneness Reflect Attachment Orientation and Attitudes to Crying.

    Science.gov (United States)

    Millings, Abigail; Hepper, Erica G; Hart, Claire M; Swift, Louise; Rowe, Angela C

    2016-01-01

    Despite being a universal human attachment behavior, little is known about individual differences in crying. To facilitate such examination we first recommend shortened versions of the attitudes and proneness sections of the Adult Crying Inventory using two independent samples. Importantly, we examine attachment orientation differences in crying proneness and test the mediating role of attitudes toward crying in this relationship. Participants (Sample 1 N = 623, Sample 2 N = 781), completed online measures of adult attachment dimensions (avoidance and anxiety), attitudes toward crying, and crying proneness. Exploratory factor analyses in Sample 1 revealed four factors for crying attitudes: crying helps one feel better; crying is healthy; hatred of crying; and crying is controllable; and three factors for crying proneness: threat to self; sadness; and joy. Confirmatory factor analyses in Sample 2 replicated these structures. Theoretically and statistically justified short forms of each scale were created. Multiple mediation analyses revealed similar patterns of results across the two samples, with the attitudes "crying is healthy" and "crying is controllable" consistently mediating the positive links between attachment anxiety and crying proneness, and the negative links between attachment avoidance and crying proneness. Results are discussed in relation to attachment and emotion regulation literature. PMID:27458402

  6. Electron attachment rate constant measurement by photoemission electron attachment ion mobility spectrometry (PE-EA-IMS)

    Science.gov (United States)

    Su, Desheng; Niu, Wenqi; Liu, Sheng; Shen, Chengyin; Huang, Chaoqun; Wang, Hongmei; Jiang, Haihe; Chu, Yannan

    2012-12-01

    Photoemission electron attachment ion mobility spectrometry (PE-EA-IMS), with a source of photoelectrons induced by vacuum ultraviolet radiation on a metal surface, has been developed to study electron attachment reaction at atmospheric pressure using nitrogen as the buffer gas. Based on the negative ion mobility spectra, the rate constants for electron attachment to tetrachloromethane and chloroform were measured at ambient temperature as a function of the average electron energy in the range from 0.29 to 0.96 eV. The experimental results are in good agreement with the data reported in the literature.

  7. The Effect of Birth Order on Attachment Style According to Attachment Theory

    OpenAIRE

    BAYRAKTAR, Seda; YAHŞİ, Gülşah

    2016-01-01

    Attachment is a vital neurobiopsychological phenomenon known to be dependent on the early relationship between baby and the caregiver. It mostly develops in the first year and out of repeated patterns of the primary attachment relationship. Birth order is defined as a person's rank by age among his or her siblings. Birth order is often believed to have a profound and lasting effect on psychological development. Also it has been thought that birth order has an impact on the attachment.  In thi...

  8. Attachment: A Study of a Child's Attachment to the Teacher as an Outgrowth of Her/His Attachment to the Mother.

    Science.gov (United States)

    Houston, Ann Jespersen

    This paper reviews the literature on attachment, presents a study of child-teacher attachment, and discusses child-teacher attachment as a secondary relationship influenced by the prototype bonding between mother and child. The literature review traces the development of psychoanalytic thought regarding the mother-child relationship and examines…

  9. Chiasmata promote monopolar attachment of sister chromatids and their co-segregation toward the proper pole during meiosis I.

    Directory of Open Access Journals (Sweden)

    Yukinobu Hirose

    2011-03-01

    Full Text Available The chiasma is a structure that forms between a pair of homologous chromosomes by crossover recombination and physically links the homologous chromosomes during meiosis. Chiasmata are essential for the attachment of the homologous chromosomes to opposite spindle poles (bipolar attachment and their subsequent segregation to the opposite poles during meiosis I. However, the overall function of chiasmata during meiosis is not fully understood. Here, we show that chiasmata also play a crucial role in the attachment of sister chromatids to the same spindle pole and in their co-segregation during meiosis I in fission yeast. Analysis of cells lacking chiasmata and the cohesin protector Sgo1 showed that loss of chiasmata causes frequent bipolar attachment of sister chromatids during anaphase. Furthermore, high time-resolution analysis of centromere dynamics in various types of chiasmate and achiasmate cells, including those lacking the DNA replication checkpoint factor Mrc1 or the meiotic centromere protein Moa1, showed the following three outcomes: (i during the pre-anaphase stage, the bipolar attachment of sister chromatids occurs irrespective of chiasma formation; (ii the chiasma contributes to the elimination of the pre-anaphase bipolar attachment; and (iii when the bipolar attachment remains during anaphase, the chiasmata generate a bias toward the proper pole during poleward chromosome pulling that results in appropriate chromosome segregation. Based on these results, we propose that chiasmata play a pivotal role in the selection of proper attachments and provide a backup mechanism that promotes correct chromosome segregation when improper attachments remain during anaphase I.

  10. Calculus III essentials

    CERN Document Server

    REA, Editors of

    2012-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Calculus III includes vector analysis, real valued functions, partial differentiation, multiple integrations, vector fields, and infinite series.

  11. Interpersonal problems and personality features as mediators between attachment and intimate partner violence.

    Science.gov (United States)

    Lawson, David M; Brossart, Daniel F

    2013-01-01

    We examined whether hostile dominant interpersonal problems (HDIP), antisocial features, and borderline features mediated the relationship between attachment (anxiety or avoidance) and intimate partner violence (IPV) with a sample of 132 male partner abusers. We conducted two path analyses with avoidant attachment as the predictor in one model and anxious attachment as the predictor in a second model. In both models, HDIP, antisocial features, and borderline features were the mediators with IPV as the criterion. For both models, the attachment variable had statistically significant path values to the mediating variables. However, neither antisocial nor borderline features had statistically significant path values from the mediating variable to the criterion variable (IPV). Only HDIP had a statistically significant path value from the mediating variable to the criterion variable in both models. However, only the avoidant model produced a statistically significant specific indirect effect indicating that HDIP clearly mediated the relationship between attachment and IPV. Results suggest that partner abusive men with predominantly avoidant and, to a lesser degree, anxious attachment may be at increased risk for addressing conflicts in a coercive, controlling, and vengeful manner that is manifested in physical aggression toward a partner. Further, interpersonal constructs may be better measures of psychopathology and provide more relevant clinical targets than personality constructs with male partner abusers.

  12. Surface-attached cells, biofilms and biocide susceptibility: implications for hospital cleaning and disinfection.

    Science.gov (United States)

    Otter, J A; Vickery, K; Walker, J T; deLancey Pulcini, E; Stoodley, P; Goldenberg, S D; Salkeld, J A G; Chewins, J; Yezli, S; Edgeworth, J D

    2015-01-01

    Microbes tend to attach to available surfaces and readily form biofilms, which is problematic in healthcare settings. Biofilms are traditionally associated with wet or damp surfaces such as indwelling medical devices and tubing on medical equipment. However, microbes can survive for extended periods in a desiccated state on dry hospital surfaces, and biofilms have recently been discovered on dry hospital surfaces. Microbes attached to surfaces and in biofilms are less susceptible to biocides, antibiotics and physical stress. Thus, surface attachment and/or biofilm formation may explain how vegetative bacteria can survive on surfaces for weeks to months (or more), interfere with attempts to recover microbes through environmental sampling, and provide a mixed bacterial population for the horizontal transfer of resistance genes. The capacity of existing detergent formulations and disinfectants to disrupt biofilms may have an important and previously unrecognized role in determining their effectiveness in the field, which should be reflected in testing standards. There is a need for further research to elucidate the nature and physiology of microbes on dry hospital surfaces, specifically the prevalence and composition of biofilms. This will inform new approaches to hospital cleaning and disinfection, including novel surfaces that reduce microbial attachment and improve microbial detachment, and methods to augment the activity of biocides against surface-attached microbes such as bacteriophages and antimicrobial peptides. Future strategies to address environmental contamination on hospital surfaces should consider the presence of microbes attached to surfaces, including biofilms.

  13. Machiavellianism and Adult Attachment in General Interpersonal Relationships and Close Relationships

    Directory of Open Access Journals (Sweden)

    Tamás Ináncsi

    2015-02-01

    Full Text Available Up to the present, the relationship between Machiavellianism and adult attachment has remained a question to be answered in the psychological literature. That is why this study focused on the relationship between Machiavellianism and attachment towards significant others in general interpersonal relationships and in intimate-close relationships. Two attachment tests (Relationship Questionnaire and long-form of Experiences in Close Relationship and the Mach-IV test were conducted on a sample consisting of 185 subjects. Results have revealed that Machiavellian subjects show a dismissing-avoidant attachment style in their general interpersonal relationships, while avoidance is further accompanied by some characteristics of attachment anxiety in their intimate-close relationships. Our findings further refine the relationship between Machiavellianism and dismissing-avoidant attachment. Machiavellian individuals not only have a negative representation of significant others, but they also tend to seek symbiotic closeness in order to exploit their partners. This ambitendency in distance regulation might be particularly important in understanding the vulnerability of Machiavellian individuals.

  14. Machiavellianism and Adult Attachment in General Interpersonal Relationships and Close Relationships.

    Science.gov (United States)

    Ináncsi, Tamás; Láng, András; Bereczkei, Tamás

    2015-02-01

    Up to the present, the relationship between Machiavellianism and adult attachment has remained a question to be answered in the psychological literature. That is why this study focused on the relationship between Machiavellianism and attachment towards significant others in general interpersonal relationships and in intimate-close relationships. Two attachment tests (Relationship Questionnaire and long-form of Experiences in Close Relationship) and the Mach-IV test were conducted on a sample consisting of 185 subjects. Results have revealed that Machiavellian subjects show a dismissing-avoidant attachment style in their general interpersonal relationships, while avoidance is further accompanied by some characteristics of attachment anxiety in their intimate-close relationships. Our findings further refine the relationship between Machiavellianism and dismissing-avoidant attachment. Machiavellian individuals not only have a negative representation of significant others, but they also tend to seek symbiotic closeness in order to exploit their partners. This ambitendency in distance regulation might be particularly important in understanding the vulnerability of Machiavellian individuals. PMID:27247647

  15. Trust, attachment, and mindfulness influence intimacy and disengagement during newlyweds' discussions of relationship transgressions.

    Science.gov (United States)

    Khalifian, Chandra E; Barry, Robin A

    2016-08-01

    Discussions of relationship transgressions-violations of relationship norms-are often difficult for couples to successfully navigate. Nevertheless, engaging in and resolving these discussions should promote intimacy. Drawing on the risk regulation model, individuals' experiences of disengagement and intimacy during transgression discussions should depend on their trust in their partner regarding the transgression and how they regulate distress related to lower trust. Attachment style represents individual differences in emotion regulation in close relationship contexts and is indicated by the risk regulation model. In contrast, mindfulness also improves interpersonal emotion regulation but is not reflected in the model. The present study proposed that the effect of trust on the experience of intimacy and disengagement during transgression discussions would depend on individuals' attachment style or mindfulness. Hypotheses were tested in a sample of 81 heterosexual newlywed couples. Trust was positively associated with intimacy for individuals with higher attachment avoidance, but not for individuals with lower attachment avoidance. Trust was negatively associated with disengagement for individuals with either lower mindfulness or higher attachment avoidance. Trust was not associated with disengagement for individuals with higher mindfulness or lower attachment avoidance. Implications for theory and clinical interventions focused on increasing intimacy and decreasing disengagement in couple relationships are discussed. (PsycINFO Database Record PMID:27077236

  16. Trust, attachment, and mindfulness influence intimacy and disengagement during newlyweds' discussions of relationship transgressions.

    Science.gov (United States)

    Khalifian, Chandra E; Barry, Robin A

    2016-08-01

    Discussions of relationship transgressions-violations of relationship norms-are often difficult for couples to successfully navigate. Nevertheless, engaging in and resolving these discussions should promote intimacy. Drawing on the risk regulation model, individuals' experiences of disengagement and intimacy during transgression discussions should depend on their trust in their partner regarding the transgression and how they regulate distress related to lower trust. Attachment style represents individual differences in emotion regulation in close relationship contexts and is indicated by the risk regulation model. In contrast, mindfulness also improves interpersonal emotion regulation but is not reflected in the model. The present study proposed that the effect of trust on the experience of intimacy and disengagement during transgression discussions would depend on individuals' attachment style or mindfulness. Hypotheses were tested in a sample of 81 heterosexual newlywed couples. Trust was positively associated with intimacy for individuals with higher attachment avoidance, but not for individuals with lower attachment avoidance. Trust was negatively associated with disengagement for individuals with either lower mindfulness or higher attachment avoidance. Trust was not associated with disengagement for individuals with higher mindfulness or lower attachment avoidance. Implications for theory and clinical interventions focused on increasing intimacy and decreasing disengagement in couple relationships are discussed. (PsycINFO Database Record

  17. Does Place Attachment Predict Wildfire Mitigation and Preparedness? A Comparison of Wildland-Urban Interface and Rural Communities.

    Science.gov (United States)

    Anton, Charis E; Lawrence, Carmen

    2016-01-01

    Wildfires are a common occurrence in many countries and are predicted to increase as we experience the effects of climate change. As more people are expected to be affected by fires, it is important to increase people's wildfire mitigation and preparation. Place attachment has been theorized to be related to mitigation and preparation. The present study examined place attachment and wildfire mitigation and preparation in two Australian samples, one rural and one on the wildland-urban interface. The study consisted of 300 participants who responded to questionnaires about their place attachment to their homes and local areas, as well as describing their socio-demographic characteristics and wildfire mitigation and preparedness. Hierarchical regression showed that place attachment to homes predicted wildfire mitigation and preparedness in the rural sample but not in the wildland-urban interface sample. The results suggest that place attachment is a motivator for mitigation and preparation only for people living rurally. Reminding rural residents of their attachment to home at the beginning of wildfire season may result in greater mitigation and preparedness. Further research focusing on why attachment does not predict mitigation and preparedness in the wildland-urban interface is needed.

  18. Does Place Attachment Predict Wildfire Mitigation and Preparedness? A Comparison of Wildland-Urban Interface and Rural Communities

    Science.gov (United States)

    Anton, Charis E.; Lawrence, Carmen

    2016-01-01

    Wildfires are a common occurrence in many countries and are predicted to increase as we experience the effects of climate change. As more people are expected to be affected by fires, it is important to increase people's wildfire mitigation and preparation. Place attachment has been theorized to be related to mitigation and preparation. The present study examined place attachment and wildfire mitigation and preparation in two Australian samples, one rural and one on the wildland-urban interface. The study consisted of 300 participants who responded to questionnaires about their place attachment to their homes and local areas, as well as describing their socio-demographic characteristics and wildfire mitigation and preparedness. Hierarchical regression showed that place attachment to homes predicted wildfire mitigation and preparedness in the rural sample but not in the wildland-urban interface sample. The results suggest that place attachment is a motivator for mitigation and preparation only for people living rurally. Reminding rural residents of their attachment to home at the beginning of wildfire season may result in greater mitigation and preparedness. Further research focusing on why attachment does not predict mitigation and preparedness in the wildland-urban interface is needed.

  19. MEASURING PLACE ATTACHMENT TO CĂLIMANI NATIONAL PARK (ROMANIA AMONG LOCAL RESIDENTS AND TOURISTS. PRELIMINARY FINDINGS

    Directory of Open Access Journals (Sweden)

    IZABELA AMALIA MIHALCA

    2014-06-01

    Full Text Available Measuring Place Attachment to Călimani National Park (Romania among Local Residents and Tourists. Preliminary Findings. Understanding the attachments that people develop for certain places is an interesting area of study, but with little attention in Romanian empirical research. This study introduces the concepts of place identity and place dependence in relation to a specific area within the local culture of the Land of Dorna. Starting from previous studies carried on western samples, a research instrument measuring the degree and content of place attachment was translated and adapted. 86 respondents (52 residents and 34 tourists filled in the questionnaire. Comparing the degree of attachment, there was no significant difference among the two samples. However, local residents tended to display higher levels of place identity, while tourists displayed more emotional functionality to the study area. Place attachment is deeply embodied in the local culture. Due to the research design the generalization of the results is limited. However, this study may act as a starting point in researching other geographical mental spaces. The lands of Romania are unique social and cultural spaces with specific attachment patterns. Future studies should consider larger and representative samples in order to find additional patterns of attachment among residents and other individuals (e.g. tourists, visitors, new residents, other communities etc..

  20. [Locator or ball attachment: a guide for clinical decision making].

    Science.gov (United States)

    Büttel, Adrian E; Bühler, Nico M; Marinello, Carlo P

    2009-01-01

    Various attachments are available to retain overdentures on natural roots or implants. Technical aspects, the clinical handling, the capability to adapt or repair and the costs are parameters to be considered when choosing the appropriate attachment. Ball attachments and bars are clinically established and well documented. Ball attachments as prefabricated, unsplinted units are easily replaceable and show hygienic advantages, while bars show favorable stability. The Locator is a newer, popular clinical alternative to these established attachments. The ball attachment and the Locator are compared from a technical and clinical point of view. PMID:19852208

  1. [Locator or ball attachment: a guide for clinical decision making].

    Science.gov (United States)

    Büttel, Adrian E; Bühler, Nico M; Marinello, Carlo P

    2009-01-01

    Various attachments are available to retain overdentures on natural roots or implants. Technical aspects, the clinical handling, the capability to adapt or repair and the costs are parameters to be considered when choosing the appropriate attachment. Ball attachments and bars are clinically established and well documented. Ball attachments as prefabricated, unsplinted units are easily replaceable and show hygienic advantages, while bars show favorable stability. The Locator is a newer, popular clinical alternative to these established attachments. The ball attachment and the Locator are compared from a technical and clinical point of view.

  2. Implications of attachment theory for developmental psychopathology.

    Science.gov (United States)

    Sroufe, L A; Carlson, E A; Levy, A K; Egeland, B

    1999-01-01

    Bowlby's attachment theory is a theory of psychopathology as well as a theory of normal development. It contains clear and specific propositions regarding the role of early experience in developmental psychopathology, the importance of ongoing context, and the nature of the developmental process underlying pathology. In particular, Bowlby argued that adaptation is always the joint product of developmental history and current circumstances (never either alone). Early experience does not cause later pathology in a linear way; yet, it has special significance due to the complex, systemic, transactional nature of development. Prior history is part of current context, playing a role in selection, engagement, and interpretation of subsequent experience and in the use of available environmental supports. Finally, except in very extreme cases, early anxious attachment is not viewed as psychopathology itself or as a direct cause of psychopathology but as an initiator of pathways probabilistically associated with later pathology. PMID:10208353

  3. DFB laser with attached external intensity modulator

    Energy Technology Data Exchange (ETDEWEB)

    Marcuse, D. (AT and T Bell Labs. Holmdel, NJ (US))

    1990-02-01

    This paper presents a theoretical study of the frequency pulling effect exerted on a DFB laser by an external amplitude modulator that is directly attached to it. The modulator consists of a piece of waveguide whose loss is modulated by means of an externally applied voltage. The modulator affects the laser due to residual reflections from its far end which appear as a variable effective reflectivity to the output end of the DFB laser. Modulation affects the magnitude as well as the phase of the effective reflection coefficient presented to the laser due to the coupling of the real and imaginary parts of the effective refractive index of the modulator waveguide. The tuning problem is formulated as an eigenvalue equation for the DFB laser in the presence of an externally attached lossy cavity.

  4. Conflict in close relationships: an attachment perspective.

    Science.gov (United States)

    Simpson, J A; Rholes, W S; Phillips, D

    1996-11-01

    This study investigated how perceptions of current dating partners and relationships change after people with different attachment orientations attempt to resolve a problem in their relationship. Dating couples were videotaped while they tried to resolve either a major or a minor problem. Confirming predictions from attachment theory, men and women who had a more ambivalent orientation perceived their partner and relationship in relatively less positive terms after discussing a major problem. Observer ratings revealed that more ambivalent women who tried to resolve a major problem displayed particularly strong stress and anxiety and engaged in more negative behaviors. Conversely, men with a more avoidant orientation were rated as less warm and supportive, especially if they discussed a major problem. These results are discussed in terms of how highly ambivalent and highly avoidant people differentially perceive and respond to distressing events.

  5. Preoccupied attachment and emotional dysregulation: specific aspects of borderline personality disorder or general dimensions of personality pathology?

    Science.gov (United States)

    Scott, Lori N; Kim, Yookyung; Nolf, Kimberly A; Hallquist, Michael N; Wright, Aidan G C; Stepp, Stephanie D; Morse, Jennifer Q; Pilkonis, Paul A

    2013-08-01

    Emotional dysregulation and impaired attachment are seen by many clinical researchers as central aspects of borderline personality disorder (BPD). Alternatively, these constructs may represent general impairments in personality that are nonspecific to BPD. Using multitraitmultimethod models, the authors examined the strength of associations among preoccupied attachment, difficulties with emotion regulation, BPD features, and features of two other personality disorders (i.e., antisocial and avoidant) in a combined psychiatric outpatient and community sample of adults. Results suggested that preoccupied attachment and difficulties with emotion regulation shared strong positive associations with each other and with each of the selected personality disorders. However, preoccupied attachment and emotional dysregulation were more strongly related to BPD features than to features of other personality disorders. Findings suggest that although impairments in relational and emotional domains may underlie personality pathology in general, preoccupied attachment and emotional dysregulation also have specificity for understanding core difficulties in those with BPD.

  6. Exposure to family violence and attachment styles as predictors of dating violence perpetration among men and women: a mediational model.

    Science.gov (United States)

    Lee, Mary; Reese-Weber, Marla; Kahn, Jeffrey H

    2014-01-01

    This study examined a multiple mediator model explaining how sibling perpetration and one's attachment style mediate the relation between parent-to-child victimization and dating violence perpetration. A sample of undergraduate students (n = 392 women, n = 89 men) completed measures of the aforementioned variables on an Internet survey. For men, path analyses found no mediation; parent-to-child victimization had a direct association with dating violence perpetration, no association was found between sibling perpetration and dating violence perpetration, and attachment anxiety, but not attachment avoidance, was positively associated with dating violence perpetration for men. For women, the hypothesized mediation model was supported; parent-to-child victimization had a direct association with dating violence perpetration, and sibling perpetration and attachment anxiety served as mediating variables. Attachment avoidance was not associated with dating violence perpetration for women. Implications for future research and clinical practice are discussed. PMID:24097907

  7. Adolescent-parent attachment as a mediator of relations between parenting and adolescent social behavior and wellbeing in China.

    Science.gov (United States)

    Cai, Mengfei; Hardy, Sam A; Olsen, Joseph A; Nelson, David A; Yamawaki, Niwako

    2013-01-01

    The purpose of this study was to examine links between parenting dimensions (authoritative parenting, psychological control, and parental authority) and adolescent wellbeing (self-esteem, autonomy, and peer attachments) as mediated by parent-teen attachment, among Chinese families. The sample included 298 Chinese adolescents, ages 15-18 years (M(age) = 16.36, SD = .68; 60% female). The mediation model was examined using path analyses (one model with parental authority as overprotection, and one with it as perceived behavioral control). To improve model fit a direct path was added from authoritative parenting to autonomy. Authoritative parenting was positively predictive of attachment, while psychological control and overprotection (but not behavioral control) were negative predictors. In turn, adolescent-parent attachment was positively related to the three outcomes. Lastly, the model paths did not differ by adolescent gender. These findings suggest that parenting behaviors may play a crucial role in adolescent social behaviors and wellbeing via adolescent-parent attachment. PMID:23509911

  8. Exposure to family violence and attachment styles as predictors of dating violence perpetration among men and women: a mediational model.

    Science.gov (United States)

    Lee, Mary; Reese-Weber, Marla; Kahn, Jeffrey H

    2014-01-01

    This study examined a multiple mediator model explaining how sibling perpetration and one's attachment style mediate the relation between parent-to-child victimization and dating violence perpetration. A sample of undergraduate students (n = 392 women, n = 89 men) completed measures of the aforementioned variables on an Internet survey. For men, path analyses found no mediation; parent-to-child victimization had a direct association with dating violence perpetration, no association was found between sibling perpetration and dating violence perpetration, and attachment anxiety, but not attachment avoidance, was positively associated with dating violence perpetration for men. For women, the hypothesized mediation model was supported; parent-to-child victimization had a direct association with dating violence perpetration, and sibling perpetration and attachment anxiety served as mediating variables. Attachment avoidance was not associated with dating violence perpetration for women. Implications for future research and clinical practice are discussed.

  9. Adolescent-parent attachment as a mediator of relations between parenting and adolescent social behavior and wellbeing in China.

    Science.gov (United States)

    Cai, Mengfei; Hardy, Sam A; Olsen, Joseph A; Nelson, David A; Yamawaki, Niwako

    2013-01-01

    The purpose of this study was to examine links between parenting dimensions (authoritative parenting, psychological control, and parental authority) and adolescent wellbeing (self-esteem, autonomy, and peer attachments) as mediated by parent-teen attachment, among Chinese families. The sample included 298 Chinese adolescents, ages 15-18 years (M(age) = 16.36, SD = .68; 60% female). The mediation model was examined using path analyses (one model with parental authority as overprotection, and one with it as perceived behavioral control). To improve model fit a direct path was added from authoritative parenting to autonomy. Authoritative parenting was positively predictive of attachment, while psychological control and overprotection (but not behavioral control) were negative predictors. In turn, adolescent-parent attachment was positively related to the three outcomes. Lastly, the model paths did not differ by adolescent gender. These findings suggest that parenting behaviors may play a crucial role in adolescent social behaviors and wellbeing via adolescent-parent attachment.

  10. Boat sampling

    International Nuclear Information System (INIS)

    This presentation describes essential boat sampling activities: on site boat sampling process optimization and qualification; boat sampling of base material (beltline region); boat sampling of weld material (weld No. 4); problems accompanied with weld crown varieties, RPV shell inner radius tolerance, local corrosion pitting and water clarity. The equipment used for boat sampling is described too. 7 pictures

  11. [Set of radiocirculographic attachments for radioisotope laboratories].

    Science.gov (United States)

    Devishev, M I; Panfilova, N P; Ostrogradskaia, M G

    1980-01-01

    A set of radiocirculographic attachments is offered which serves for calibration and verification of readings taken from the apparatus during radiographic procedures. The set is designed for operation with all colimators of radiocirculographs produced in the USSR and Hungarian People's Republic. The set is able to imitate the investigation geometry, accumulation of radioactivity in the organ under study, absorption and scattering of radioactivty in the organism tissues. Series production of this device has already been initiated. PMID:7392870

  12. Preferential attachment in the protein network evolution

    OpenAIRE

    Eisenberg, Eli; Levanon, Erez Y.

    2003-01-01

    The Saccharomyces cerevisiae protein-protein interaction map, as well as many natural and man-made networks, shares the scale-free topology. The preferential attachment model was suggested as a generic network evolution model that yields this universal topology. However, it is not clear that the model assumptions hold for the protein interaction network. Using a cross genome comparison we show that (a) the older a protein, the better connected it is, and (b) The number of interactions a prote...

  13. Attachment of Thiobacillus thiooxidans to sulfur crystals.

    Science.gov (United States)

    SCHAEFFER, W I; HOLBERT, P E; UMBREIT, W W

    1963-01-01

    Schaeffer, W. I. (Rutgers, The State University, New Brunswick, N.J.), P. E. Holbert, and W. W. Umbreit. Attachment of Thiobacillus thiooxidans to sulfur crystals. J. Bacteriol. 85:137-140. 1963.-Electron micrographs of replicas of sulfur crystals before and after attack by Thiobacillus thiooxidans show that the microorganisms erode the crystal in the area immediately adjacent to the cell. When there are many cells, the entire crystal surface appears eroded.

  14. Attachment alternatives in implant-supported overdentures

    OpenAIRE

    Aktaş, Güliz; CANAY, Şenay

    2015-01-01

    Severe resorption of the alveolar ridges often makes it very difficult for patients to wear conventional dentures due to the lack of retention and stability of the dentures. Implant-supported overdentures offer edentulous patients a better retained and more stable prosthesis resulting in improved chewing ability and patient satisfaction compared against conventional complete dentures. There exist various attachment systems to be used with overdenture prostheses and are available in the market...

  15. Strains around distally inclined implants retaining mandibular overdentures with Locator attachments: an in vitro study

    Science.gov (United States)

    Setta, Fathi Abo; Khirallah, Ahmed Samir

    2016-01-01

    PURPOSE The aim of the present study was to evaluate, by means of strain gauge analysis, the effect of different implant angulations on strains around two implants retaining mandibular overdenture with Locator attachments. MATERIALS AND METHODS Four duplicate mandibular acrylic models were constructed. Two implants were inserted in the canine regions using the following degrees of distal inclinations: group I (control); 0°, group II; 10°, group III; 20°, and group IV; 30°. Locator pink attachments were used to connect the overdenture to the implants and Locator red (designed for severely angled implants) was used for group IV (group IVred). For each group, two linear strain gauges were attached at the mesial and distal surfaces of the acrylic resin around each implant. Peri-implant strain was measured on loading and non-loading sides during bilateral and unilateral loading. RESULTS For all groups, the mesial surfaces of the implants at loading and non-loading sides experienced compressive (negative) strains, while the distal implant surfaces showed tensile (positive) strains. Group IV showed the highest strain, followed by group III, group II. Both group I and group IVred showed the lowest strain. The strain gauges at the mesial surface of the loading side recorded the highest strain, and the distal surface at non-loading side showed the lowest strain. Unilateral loading recorded significantly higher strain than bilateral loading. CONCLUSION Peri-implant strains around two implants used to retain mandibular overdentures with Locator attachments increase as distal implant inclination increases, except when red nylon inserts were used. PMID:27141255

  16. Cladding Attachment Over Thick Exterior Insulating Sheathing

    Energy Technology Data Exchange (ETDEWEB)

    Baker, P. [Building Science Corporation, Somerville, MA (United States); Eng, P. [Building Science Corporation, Somerville, MA (United States); Lepage, R. [Building Science Corporation, Somerville, MA (United States)

    2014-01-01

    The addition of insulation to the exterior of buildings is an effective means of increasing the thermal resistance of both wood framed walls as well as mass masonry wall assemblies. For thick layers of exterior insulation (levels greater than 1.5 inches), the use of wood furring strips attached through the insulation back to the structure has been used by many contractors and designers as a means to provide a convenient cladding attachment location (Straube and Smegal 2009, Pettit 2009, Joyce 2009, Ueno 2010). The research presented in this report is intended to help develop a better understanding of the system mechanics involved and the potential for environmental exposure induced movement between the furring strip and the framing. BSC sought to address the following research questions: 1.What are the relative roles of the mechanisms and the magnitudes of the force that influence the vertical displacement resistance of the system? 2.Can the capacity at a specified deflection be reliably calculated using mechanics based equations? 3.What are the impacts of environmental exposure on the vertical displacement of furring strips attached directly through insulation back to a wood structure?

  17. Cladding Attachment Over Thick Exterior Insulating Sheathing

    Energy Technology Data Exchange (ETDEWEB)

    Baker, P.; Eng, P.; Lepage, R.

    2014-01-01

    The addition of insulation to the exterior of buildings is an effective means of increasing the thermal resistance of both wood framed walls as well as mass masonry wall assemblies. For thick layers of exterior insulation (levels greater than 1.5 inches), the use of wood furring strips attached through the insulation back to the structure has been used by many contractors and designers as a means to provide a convenient cladding attachment location (Straube and Smegal 2009, Pettit 2009, Joyce 2009, Ueno 2010). The research presented in this report is intended to help develop a better understanding of the system mechanics involved and the potential for environmental exposure induced movement between the furring strip and the framing. BSC sought to address the following research questions: 1. What are the relative roles of the mechanisms and the magnitudes of the force that influence the vertical displacement resistance of the system? 2. Can the capacity at a specified deflection be reliably calculated using mechanics based equations? 3. What are the impacts of environmental exposure on the vertical displacement of furring strips attached directly through insulation back to a wood structure?

  18. Integrin Expression Regulates Neuroblastoma Attachment and Migration

    Directory of Open Access Journals (Sweden)

    Amy Meyer

    2004-07-01

    Full Text Available Neuroblastoma (NBL is the most common malignant disease of infancy, and children with bone metastasis have a mortality rate greater than 90%. Two major classes of proteins, integrins and growth factors, regulate the metastatic process. We have previously shown that tumorigenic NBL cells express higher levels of the type I insulin-like growth factor receptor (IGF-IR and that β1 integrin expression is inversely proportional to tumorigenic potential in NBL. In the current study, we analyze the effect of β1 integrin and IGF-IR on NBL cell attachment and migration. Nontumorigenic S-cells express high levels of β1 integrin, whereas tumorigenic N-cells express little β1 integrin. Alterations in (3, integrin are due to regulation at the protein level, as translation is decreased in N-type cells. Moreover, inhibition of protein synthesis shows that β1 integrin is degraded more slowly in S-type cells (SHEP than in N-type cells (SH-SY5Y and IMR32. Inhibition of α5β1 integrin prevents SHEP (but not SH-SY5Y or IMR32 cell attachment to fibronectin and increases SHEP cell migration. Increases in IGF-IR decrease β1 integrin expression, and enhance SHEP cell migration, potentially through increased expression of αvβ3. These data suggest that specific classes of integrins in concert with IGF-IR regulate NBL attachment and migration.

  19. Concordance of Attachment Representations in Mother-/Father-Child Dyads and between Siblings

    Directory of Open Access Journals (Sweden)

    Marie Stievenart

    2013-07-01

    Full Text Available This study focuses on the concordance of attachment representations in two-parent, two-child families as an original contribution to the current attachment literature. It uses both categorical attachment patterns and continuous scores. Data was collected on 92 native French-speaking Belgian families. In order to disentangle conceptual and methodological interpretations, each hypothesis was tested in two complementary ways: first in a sample where the parent completed the 'Cartes pour les Modèles Internes de Relation' (CaMir and their young children (four- to seven-year-olds the French version of the 'Attachment Story Completion Task'(Fr-ASCT and second, in a sample where both parents and their teenage to young-adult children (15- to 34-year-olds completed the CaMir. Our results indicated very little if any concordance of attachment representations, either when using categorical scores or when using continuous scores. The implications of these results for both theoretical and research purposes are discussed.

  20. The relationships among separation anxiety disorder, adult attachment style and agoraphobia in patients with panic disorder.

    Science.gov (United States)

    Pini, Stefano; Abelli, Marianna; Troisi, Alfonso; Siracusano, Alberto; Cassano, Giovanni B; Shear, Katherine M; Baldwin, David

    2014-12-01

    Epidemiological studies indicate that separation anxiety disorder occurs more frequently in adults than children. It is unclear whether the presence of adult separation anxiety disorder (ASAD) is a manifestation of anxious attachment, or a form of agoraphobia, or a specific condition with clinically significant consequences. We conducted a study to examine these questions. A sample of 141 adult outpatients with panic disorder participated in the study. Participants completed standardized measures of separation anxiety, attachment style, agoraphobia, panic disorder severity and quality of life. Patients with ASAD (49.5% of our sample) had greater panic symptom severity and more impairment in quality of life than those without separation anxiety. We found a greater rate of symptoms suggestive of anxious attachment among panic patients with ASAD compared to those without ASAD. However, the relationship between ASAD and attachment style is not strong, and adult ASAD occurs in some patients who report secure attachment style. Similarly, there is little evidence for the idea that separation anxiety disorder is a form of agoraphobia. Factor analysis shows clear differentiation of agoraphobic and separation anxiety symptoms. Our data corroborate the notion that ASAD is a distinct condition associated with impairment in quality of life and needs to be better recognized and treated in patients with panic disorder.