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Sample records for strong family ties

  1. Family Ties and Civic Virtues

    DEFF Research Database (Denmark)

    Ljunge, Jan Martin

    I establish a positive relationship between family ties and civic virtues, as captured by disapproval of tax and benefit cheating, corruption, and a range of other dimensions of exploiting others for personal gain. I find that family ties are a complement to social capital, using within country...

  2. Family Ties: Reframing Memory, 2014

    OpenAIRE

    Bird, Nicky

    2014-01-01

    How might we read memory in relation to the family, and how might we enact these memories in visual form? This group exhibition addresses the representation of family memory through the lens-based works of six artists. Family Ties: Reframing Memory explores the bittersweet aspects of nostalgia, yet also questions the conflicts and contradictions inherent in acts of remembering. \\ud \\ud Suze Adams navigates the borders of fact and fiction in an exploratory re-tracing of her maternal ancestors....

  3. Family ties and depression across the life course: An Overview

    Directory of Open Access Journals (Sweden)

    Nienke Moor

    2012-08-01

    Full Text Available BACKGROUND Family ties in Europe are affected by demographic trends associated with parenting and partnering, such as a decline in fertility, an increase in childlessness, postponement of parenthood and of partnership formation, the rise of "new" relationship forms and divorce rates. It is unclear how the contemporary family structure and composition are associated with people's mental wellbeing. OBJECTIVE This article examines how ties with parents, siblings, a partner and children are associated with depressive mood of men and women in seven Eastern and Western European countries. METHODS To test our hypotheses we made use of data from the Generations and Gender Surveys. We performed logistic regression analyses to study the associations between people's family ties and depressive mood. RESULTS Our research findings show that family ties can diminish people's depressive feelings. Although we find some gender differences in these associations, we do not find support for the argument that family ties are more important for the mental wellbeing of women than of men. Moreover, our findings support the hierarchical model of family relations in which new ties with partner and children in adulthood gain precedence over the original primary ties with parents and siblings. Finally, we find that the association between family ties and depressive mood is quite similar in Eastern and Western Europe, but being married or having a partner more strongly reduces depressive feelings in Eastern than in Western Europe. CONCLUSIONS Although we did not dispose of longitudinal data, our research results do provide some indications about how demographic changes, for instance, those affecting family size -- the number of children or siblings -- might be associated with mental wellbeing. Our findings also suggest that the demographic trend of increasing partnership dissolution may have larger consequences for people's mental wellbeing in Eastern

  4. Competition increases in the face of strong regional ties

    International Nuclear Information System (INIS)

    Knoetgen, P.M.

    1987-01-01

    The current fuel market exhibits a large surplus production capacity and is strongly influenced by regional ties, with imports of fabricated fuel serving to supplement domestic production or to keep domestic vendors competitive. In the future, the market is set to become increasingly competitive, especially in Europe and the United States. (author)

  5. Do Index Funds' Family Ties Benefit the Firms They Own?

    NARCIS (Netherlands)

    J.A. Albuquerque de Sousa (José)

    2017-01-01

    textabstractI investigate the impact of ties between index and non-index funds within the same mutual fund family on the value of firms in which both funds invest. Theoretically, I show that family ties increase non-index funds’ incentives to purchase additional shares and monitor a firm. This is

  6. Differentiating weak ties and strong ties among external sources of influences for enterprise resource planning (ERP) adoption

    Science.gov (United States)

    Aubert, Benoit; Léger, Pierre-Majorique; Larocque, Denis

    2012-05-01

    Enterprise resource planning (ERP) systems represent a major IT adoption decision. ERP adoption decisions, in the chemicals and allied products sectors, were examined between 1994 and 2005. Networks of strong ties and weak ties partners are investigated. Results show that neighbouring companies linked with strong ties can have an influence on organisations making such adoption decision. Past decisions made by major trading partners have a significant influence on the decision to adopt an ERP system for a given organisation. This reflects the complex nature of the knowledge required for such adoption.

  7. The co-evolution of emotional well-being with weak and strong friendship ties

    OpenAIRE

    Elmer, Timon; Boda, Zsofia; Stadtfeld, Christoph

    2017-01-01

    Social ties are strongly related to well-being. But what characterizes this relationship? This study investigates social mechanisms explaining how social ties affect well-being through social integration and social influence, and how well-being affects social ties through social selection. We hypothesize that highly integrated individuals - those with more extensive and dense friendship networks - report higher emotional well-being than others. Moreover, emotional well-being should be influen...

  8. Leaving home, family support and intergenerational ties in Italy: Some regional differences

    Directory of Open Access Journals (Sweden)

    Elisabetta Santarelli

    2009-07-01

    Full Text Available In Italy conditions at leaving home are characterized by high age at exit, high proximity with parents and widespread intergenerational support, showing important regional differences. According to the "familistic" approach such conditions spread from strong intergenerational ties. Proximity and support are considered proxies of ties' strength so that different regional proximity and support correspond to different ties' intensities. The study aims at analyzing similarities and differences about parent-child ties, proximity and support in selected Italian regions, Liguria, Umbria, Sicily and Sardinia. Results show important differences among regions with respect to proximity and support, suggesting different intensity of intergenerational ties.

  9. Family ties after divorce: long-term implications for children.

    Science.gov (United States)

    Ahrons, Constance R

    2007-03-01

    Drawing on the data from the longitudinal Binuclear Family Study, 173 grown children were interviewed 20 years after their parents' divorce. This article addresses two basic questions: (1) What impact does the relationship between parents have on their children 20 years after the divorce? and (2) When a parent remarries or cohabits, how does it impact a child's sense of family? The findings show that the parental subsystem continues to impact the binuclear family 20 years after marital disruption by exerting a strong influence on the quality of relationships within the family system. Children who reported that their parents were cooperative also reported better relationships with their parents, grandparents, stepparents, and siblings. Over the course of 20 years, most of the children experienced the remarriage of one or both parents, and one third of this sample remembered the remarriage as more stressful than the divorce. Of those who experienced the remarriage of both of their parents, two thirds reported that their father's remarriage was more stressful than their mother's. When children's relationships with their fathers deteriorated after divorce, their relationships with their paternal grandparents, stepmother, and stepsiblings were distant, negative, or nonexistent. Whether family relationships remain stable, improve, or get worse is dependent on a complex interweaving of many factors. Considering the long-term implications of divorce, the need to emphasize life course and family system perspectives is underscored.

  10. Strong families and declining fertility

    NARCIS (Netherlands)

    Hilevych, Yuliya

    2016-01-01

    This dissertation focuses on the role of family and social relationships in individuals’ reproductive careers during the fertility decline in Soviet Ukraine from around 1950 to 1975. These three decades after the Second World War signified the end of the First Demographic Transition in Ukraine

  11. Strong families and declining fertility

    NARCIS (Netherlands)

    Hilevych, Yuliya

    2016-01-01

    This dissertation focuses on the role of family and social relationships in individuals’ reproductive careers during the fertility decline in Soviet Ukraine from around 1950 to 1975. These three decades after the Second World War signified the end of the First Demographic Transition in Ukraine

  12. The Human-Canine Bond: Closer than Family Ties?

    Science.gov (United States)

    Barker, Sandra B.; Barker, Randolph T.

    1988-01-01

    Used Family Life Space Diagram to compare relationship between human family members with the human-canine relationship. Subjects were 29 dog enthusiasts, 66 typical pet owners, and 27 elementary school students with dogs. Results suggest that individuals may perceive their relationship with their pet dog as being as close as their relationship…

  13. The rational weakness of strong ties : Failure of group solidarity in a highly cohesive group of rational agents

    NARCIS (Netherlands)

    Flache, A; Yamamoto, H

    2006-01-01

    Recent research (Flache 1996; Flache and Macy 1996) suggests a "weakness of strong ties." Cohesive social networks may undermine group solidarity, rather than sustain it. In the original analysis, simulations showed that adaptive actors learn cooperation in bilateral exchanges faster than

  14. The rational weakness of strong ties : Failure of group solidarity in a highly cohesive group of rational agents

    NARCIS (Netherlands)

    Flache, Andreas

    2002-01-01

    Recent research (Flache, 1996; Flache and Macy, 1996) suggests a "weakness of strong ties." Cohesive social networks may undermine group solidarity, rather than sustain it. In the original analysis, simulations showed that adaptive actors learn cooperation in bilateral exchanges faster than

  15. Family Ties: The Role of Family Context in Family Health History Communication About Cancer.

    Science.gov (United States)

    Rodríguez, Vivian M; Corona, Rosalie; Bodurtha, Joann N; Quillin, John M

    2016-01-01

    Family health history about cancer is an important prevention and health promotion tool. Yet few studies have identified family context factors that promote such discussions. We explored relations among family context (cohesion, flexibility, and openness), self-efficacy, and cancer communication (gathering family history, sharing cancer risk information, and frequency) in a diverse group of women enrolled in a randomized control trial. Baseline survey data for 472 women were analyzed. The women's average age was 34 years, 59% identified as Black, 31% had graduated high school, and 75% reported a family history of any cancer. Results showed that greater family cohesion and flexibility were related to higher communication frequency and sharing cancer information. Women who reported greater self-efficacy were more likely to have gathered family history, shared cancer risk information, and communicated more frequently with relatives. Openness was not associated with communication but was related to greater family cohesion and flexibility. Adjusting for demographic variables, self-efficacy, and family cohesion significantly predicted communication frequency. Women with higher self-efficacy were also more likely to have gathered family health history about cancer and shared cancer risk information. Future research may benefit from considering family organization and self-efficacy when developing psychosocial theories that in turn inform cancer prevention interventions.

  16. [Family reunification and family formation migration strongly decreased].

    Science.gov (United States)

    Sprangers, A H

    1995-06-01

    "Statistics on international migration in the Netherlands do not make a distinction by reason of migration, e.g. family reunification and family formation. Because of the need for information on these types of migration, estimates were made based on demographic characteristics. The estimates show that the number of family reunionists was stable between 1987 and 1991....Recently, the Dutch policy on immigration has become more restrictive. Although information with respect to more recent years is largely lacking, tentative estimates suggest that the 1994 number of family reunionists and family forming immigrants combined has shown a strong decrease compared to 1991." (SUMMARY IN ENG) excerpt

  17. The weakness of family ties and their perpetuating effects on gender violence: a qualitative study in Mexico.

    Science.gov (United States)

    Agoff, Carolina; Herrera, Cristina; Castro, Roberto

    2007-11-01

    Research into intimate partner violence has shown that social isolation constitutes a risk factor, and the presence of social networks can be an important source of social support. This research note presents some results of an empirical study carried out in Mexico into women's social relations, especially their family relations, and their role in the promotion of traditional gender norms. Findings indicate that some of the main conditions that are associated with the production of violence against women are either generated or reinforced within the realm of what can be regarded as women's "strong ties."

  18. Does the rise of the Internet bring erosion of strong ties? Analyses of social media use and changes in core discussion networks

    NARCIS (Netherlands)

    Vriens, Eva; van Ingen, Erik

    2017-01-01

    We derive hypotheses from popular accounts of how use of social media affects our strong ties. Several authors have suggested that social media use erodes our strong ties by increasing the volume of social interactions and decreasing their depth. Using two-wave panel data representative of the Dutch

  19. Family ties and health cross-nationally: the contextualizing role of familistic culture and public pension spending in Europe.

    Science.gov (United States)

    Mair, Christine A

    2013-11-01

    Although previous research theorizes that cross-national variation in the relationship between family ties and health is due to nation-level differences in culture and policy/economics, no study has examined this theorization empirically. Using data from the Survey of Health, Ageing, and Retirement in Europe (SHARE) and the Organization for Economic Co-operation and Development (OECD), this study uses multilevel modeling to analyze individual-, nation-, and cross-level effects for 30,291 older adults in 14 nations. Family ties to spouses/partners and parents are associated with better health, but ties to coresident children are associated with poorer health in certain contexts. Familistic culture and public pension spending have a weak but statistically significant moderating effect on the relationship between intergenerational family ties and health. This article underscores the complexity of family and highlights the need for continued theorization and measurement at the nation level to promote older adults' health in diverse contexts.

  20. ‘Not a Problem Until it Becomes a Problem’: A Qualitative Study of Values and Risks of In-house Family Ties in Swedish Workplaces

    Directory of Open Access Journals (Sweden)

    Katarina Haugen

    2016-12-01

    Full Text Available In-house family ties at workplaces occur in most contexts, and are associated with both advantages and disadvantages. On the basis of 40 interviews with human resource managers at Swedish workplaces, the values and risks of in-house family ties and their importance within the workplace are analyzed jointly, thus allowing for a holistic perspective. The interviews reveal values and risks on a strategic level, for day-to-day operations, for the social work environment, and on the level of individuals. Crucially, even when in-house family ties are perceived as uncomplicated, there is a latent risk that problems might arise. The interpretation of the role of in-house family ties is also strongly related to whether they are paired with asymmetrical (vertical power relations. It also depends heavily on the chosen perspective—that of the organization, the social work environment, the individual, or the broader society—and the perceived advantages tend to come with corresponding inverted disadvantages.

  1. Misfortune and family. How negative events, family ties, and lives are linked

    NARCIS (Netherlands)

    Hogerbrugge, M.J.A.

    2014-01-01

    Despite a considerable number of persons experiencing negative life events such as serious psychological problems, financial difficulties, or an addiction to alcohol or drugs, scholarly attention on the life course has focused mostly on “normal” life events associated with the family life cycle (for

  2. Family Ties and Health Cross-Nationally: The Contextualizing Role of Familistic Culture and Public Pension Spending in Europe

    Science.gov (United States)

    2013-01-01

    Objectives. Although previous research theorizes that cross-national variation in the relationship between family ties and health is due to nation-level differences in culture and policy/economics, no study has examined this theorization empirically. Method. Using data from the Survey of Health, Ageing, and Retirement in Europe (SHARE) and the Organization for Economic Co-operation and Development (OECD), this study uses multilevel modeling to analyze individual-, nation-, and cross-level effects for 30,291 older adults in 14 nations. Results. Family ties to spouses/partners and parents are associated with better health, but ties to coresident children are associated with poorer health in certain contexts. Familistic culture and public pension spending have a weak but statistically significant moderating effect on the relationship between intergenerational family ties and health. Discussion. This article underscores the complexity of family and highlights the need for continued theorization and measurement at the nation level to promote older adults’ health in diverse contexts. PMID:24043356

  3. Engaging Military Fathers in a Reflective Parenting Program: Lessons from Strong Families Strong Forces

    Science.gov (United States)

    DeVoe, Ellen R.; Paris, Ruth

    2015-01-01

    Through Strong Families Strong Forces, a reflective parenting program for military families with young children, we were privileged to work with contemporary military fathers who served in the post-9/11 conflicts in Afghanistan and Iraq. Due to this work, the authors gained valuable insight into the complexity of fathering during wartime, the…

  4. An Efficient and Robust Hybrid Damper for LCL- or LLCL-Based Grid-Tied Inverter With Strong Grid-Side Harmonic Voltage Effect Rejection

    DEFF Research Database (Denmark)

    Liu, Yuan; Wu, Weimin; He, Yuanbin

    2016-01-01

    A high-order (LCL or LLCL) power filter with a small grid-side inductor is becoming more preferred for a grid-tied inverter due to less total inductance and reduced costs. In a microgrid, the background harmonic voltage (BHV) may distort the injected currents of the grid-tied inverters. In order......-current-feedback AD. Based on this, a single-loop current control with a hybrid damper is proposed for a single-phase LCLor LLCL-filter-based grid-tied inverter. A step-by-step design of the controller method is also introduced in detail. Experiments on a 2-kW prototype fully demonstrate the strong robustness...

  5. Transnational ties and the health of sub-Saharan African migrants: The moderating role of gender and family separation.

    Science.gov (United States)

    Afulani, Patience A; Torres, Jacqueline M; Sudhinaraset, May; Asunka, Joseph

    2016-11-01

    Recent scholarship has focused on the role that cross-border social and economic ties play in shaping health outcomes for migrant populations. Nevertheless, the extant empirical work on this topic has paid little attention to the health impacts of cross-border separation from close family members. In this paper we examine the association between cross-border ties-and cross-border separation-with the health of sub-Saharan African (SSA) migrant adults living in metropolitan France using data from the nationally representative "Trajectoire et Origines" survey (n = 1980 SSA migrants). In logistic regression analyses we find that remitting money and having a child abroad are each associated with poor health among women, but not men. The effect of remittances on health is also modified by the location of one's children: remittance sending is associated with poor health only for SSA-migrants separated from their children. These findings underscore the importance of examining both cross-border connection and cross-border separation in studies of immigrant health, and also underscore the heterogeneous relationships between cross-border ties and health for men and women. This is the first study to our knowledge that examines the relationship between cross-border ties and health for migrants in Europe, with a focus on SSA-migrants in France. These findings have important implications for the health of the growing immigrant and refugee populations in Europe and around the globe. Copyright © 2016 Elsevier Ltd. All rights reserved.

  6. The role of strong-tie social networks in mediating food security of fish resources by a traditional riverine community in the Brazilian Amazon

    Directory of Open Access Journals (Sweden)

    Frédéric Mertens

    2015-09-01

    Full Text Available Social networks are a significant way through which rural communities that manage resources under common property regimes obtain food resources. Previous research on food security and social network analysis has mostly focused on egocentric network data or proxy variables for social networks to explain how social relations contribute to the different dimensions of food security. Whole-network approaches have the potential to contribute to former studies by revealing how individual social ties aggregate into complex structures that create opportunities or constraints to the sharing and distribution of food resources. We used a whole-network approach to investigate the role of network structure in contributing to the four dimensions of food security: food availability, access, utilization, and stability. For a case study of a riparian community from the Brazilian Amazon that is dependent on fish as a key element of food security, we mapped the community strong-tie network among 97% of the village population over 14 years old (n = 336 by integrating reciprocated friendship and occupational ties, as well as close kinship relationships. We explored how different structural properties of the community network contribute to the understanding of (1 the availability of fish as a community resource, (2 community access to fish as a dietary resource, (3 the utilization of fish for consumption in a way that allows the villagers to maximize nutrition while at the same time minimizing toxic risks associated with mercury exposure, and (4 the stability of the fish resources in local ecosystems as a result of cooperative behaviors and community-based management. The contribution of whole-network approaches to the study of the links between community-based natural resource management and food security were discussed in the context of recent social-ecological changes in the Amazonian region.

  7. Extended Family Ties among Mexicans, Puerto Ricans, and Whites: Superintegration or Disintegration?

    Science.gov (United States)

    Sarkisian, Natalia; Gerena, Mariana; Gerstel, Naomi

    2006-01-01

    Addressing recent theoretical debates, this study examined the differences in extended family integration among Mexicans, Puerto Ricans, and Whites, as well as the importance of culture and structure in explaining these differences. Our findings showed Whites and Latinos/as have distinctive patterns of extended family integration: Mexicans and…

  8. Strong Military Families Program: A Multifamily Group Approach to Strengthening Family Resilience

    Science.gov (United States)

    Rosenblum, Kate; Muzik, Maria; Waddell, Rachel; Thompson, Stephanie; Rosenberg, Lauren; Masini, Gabriella; Smith, Karen

    2015-01-01

    Military families frequently display remarkable resilience in the face of significant challenges, and yet deployment and parental separation are significant stressors for parents, particularly those with infants and young children. The Strong Military Families preventive intervention is a multifamily parenting and self-care skills group that aims…

  9. All tied up: Tied staying and tied migration within the United States, 1997 to 2007

    Directory of Open Access Journals (Sweden)

    Thomas J. Cooke

    2013-10-01

    Full Text Available Background: The family migration literature presumes that women are cast into the role of the tied migrant. However, clearly identifying tied migrants is a difficult empirical task since it requires the identification of a counterfactual: Who moved but did not want to? Objective: This research develops a unique methodology to directly identify both tied migrants and tied stayers in order to investigate their frequency and determinants. Methods: Using data from the 1997 through 2009 U.S. Panel Study of Income Dynamics (PSID, propensity score matching is used to match married individuals with comparable single individuals to create counterfactual migration behaviors: who moved but would not have moved had they been single (tied migrants and who did not move but would have moved had they been single (tied stayers. Results: Tied migration is relatively rare and not limited just to women: rates of tied migration are similar for men and women. However, tied staying is both more common than tied migration and equally experienced by men and women. Consistent with the body of empirical evidence, an analysis of the determinants of tied migration and tied staying demonstrates that family migration decisions are imbued with gender. Conclusions: Additional research is warranted to validate the unique methodology developed in this paper and to confirm its results. One line of future research should be to examine the effects of tied staying, along with tied migration, on well-being, union stability, employment, and earnings.

  10. Acceptability of Family Violence: Underlying Ties Between Intimate Partner Violence and Child Abuse.

    Science.gov (United States)

    Gracia, Enrique; Rodriguez, Christina M; Martín-Fernández, Manuel; Lila, Marisol

    2017-05-01

    Intimate partner violence (IPV) and child abuse (CA) are two forms of family violence with shared qualities and risk factors, and are forms of violence that tend to overlap. Acceptability of violence in partner relationships is a known risk factor in IPV just as acceptability of parent-child aggression is a risk factor in CA. We hypothesized that these acceptability attitudes may be linked and represent the expression of a general, underlying nonspecific acceptance of violence in close family relationships. The sample involved 164 male IPV offenders participating in a batterer intervention program. Implicit measures, which assess constructs covertly to minimize response distortions, were administered to assess acceptability of partner violence against women and acceptability of parent-child aggression. To determine whether acceptability attitudes regarding both forms of violence were related to a higher order construct tapping general acceptance of family violence, Bayesian confirmatory factor analyses were conducted. Findings supported a hierarchical (bifactor) model with a general factor expressing a nonspecific acceptance of family violence, and two specific factors reflecting acceptability of violence in intimate partner and parent-child relationships, respectively. This hierarchical model supporting a general acceptance of violence in close family relationships can inform future research aiming to better understand the connections between IPV and CA.

  11. The Ties That Bind. The Chinese American Family in Transnational Chinese Cinema

    NARCIS (Netherlands)

    Han, Q.|info:eu-repo/dai/nl/341157899

    2014-01-01

    The primary research question raised in the thesis is how have films been able to construct the identity of ethnic Chinese in the United States? This question is addressed through three sub-questions. First, why is the family narrative so characteristic of films about Chinese Americans in

  12. The Structure of Family and Romantic Ties in the Soap Opera: An Ethnographic Approach.

    Science.gov (United States)

    Liebes, Tamar; Livingstone, Sonia

    1994-01-01

    Offers a new approach for the study of soap opera, aimed at discovering the social boundaries within which a particular culture negotiates its primordial relationships. Reveals the interaction between culture, power, genre, and gender by tracing the complex kinship structures of family and romance among soap opera characters and by observing how…

  13. Ties of silence--Family lived experience of selective mutism in identical twins.

    Science.gov (United States)

    Albrigtsen, Vårin; Eskeland, Benedicte; Mæhle, Magne

    2016-04-01

    This article is based on an in-depth interview with a pair of twins diagnosed with selective mutism and their parents 2 years after recovery. Selective mutism (SM) is a rare disorder, and identical twins sharing the condition are extremely rare. The twins developed SM simultaneously during their first year of school. The treatment and follow-up they received for several years are briefly described in this article. The interview explored the children's and their parents' narratives about the origin of the condition, the challenges it entailed in their daily lives, and what they found helpful in the treatment they were offered. In the interview, the children conveyed experiences that even the parents were unaware of and revealed examples of daily life-traumas for which they were unable to obtain support and help. The whole family was trapped in the silence. The twins and their parents emphasized different aspects in terms of what they believed were helpful. The implications of these findings for our understanding and treatment of children with SM are discussed, as well as the potential of service user involvement in child and adolescent mental health research. © The Author(s) 2015.

  14. The Impact of Materialism on the Familial Ties in Post-War American Society: A Study of Saul Bellow's Seize the Day

    Directory of Open Access Journals (Sweden)

    Mohammed Sabbar Abdulbaqi

    2017-12-01

    Full Text Available Saul Bellow (1915 –2005 is an American novelist and the winner of Nobel and Pulitzer Prizes for literature (1976. He is known for his critique of Post-II World War American society. The research discusses Saul Bellow's Seize the Day (1956 in regard of materialism and its impact on the familial ties not only in terms of monetary considerations but also the maltreatment of family members among themselves. It reviews the materialistic relationship between the father and son on the one hand and the husband and wife on the other hand. The study aims to recognize to what extent materialism represents a dispersed element for the family unit.

  15. Strong family history and early onset of schizophrenia: about 2 ...

    African Journals Online (AJOL)

    Schizophrenia is a highly heritable psychotic disorder and high genetic loading is associated with early onset of the disease. The outcome of schizophrenia has also been linked with the age of onset as well as the presence of family history of the disease. Therefore families with patients with early onset Schizophrenia are ...

  16. The Impact of Materialism on the Familial Ties in Post-War American Society: A Study of Saul Bellow's Seize the Day

    OpenAIRE

    Mohammed Sabbar Abdulbaqi

    2017-01-01

    Saul Bellow (1915 –2005) is an American novelist and the winner of Nobel and Pulitzer Prizes for literature (1976). He is known for his critique of Post-II World War American society. The research discusses Saul Bellow's Seize the Day (1956) in regard of materialism and its impact on the familial ties not only in terms of monetary considerations but also the maltreatment of family members among themselves. It reviews the materialistic relationship between the father and son on the one hand an...

  17. HomeFront Strong: Building Resiliency in Military Families

    Science.gov (United States)

    2017-09-01

    NOTES Email: mkees@umich.edu W81XWH-14-1-0362 14. ABSTRACT The current project aims to improve the psychological health and well-being of military and...emerging. 15. SUBJECT TERMS Military spouses; Veteran spouses; Resilience; Psychology health intervention; Mental health 16. SECURITY...14-1-0362 Pg. 5 1. INTRODUCTION: This project aims to improve the psychological health and well-being of military and veteran families residing in

  18. A criança abrigada: considerações acerca do sentido da filiação The sheltered child: considerations on family ties

    Directory of Open Access Journals (Sweden)

    Stella Maris de Castro Pipinis Parreira

    2005-08-01

    Full Text Available O presente artigo discute os sentidos da filiação para crianças abrigadas, vítimas de violência doméstica. O desejo dessas crianças de recuperar a filiação familiar é analisado como busca de um lugar psicossocial. As crianças abrigadas, que sofreram uma ruptura na filiação primeva e história de vida, flutuam entre vinculações efêmeras, sem referências de seu passado e sem pontos fixos e sólidos para seu assentamento no presente que lhes possam servir de guia ou de novas filiações. Tal condição de desfiliação é focalizada como tendência da sociedade contemporânea em afrouxar vinculações, movimentar os ancoradouros psicossociais e produzir desterritorializações, favorecendo uma subjetividade móvel, não identitária, desenlaçada de encaixes e conexões duradouros. Como conclusão, é apontada a continuidade histórica da vitimização da infância realizada pela condição de trânsito e passagem na qual vive, impeditiva de constituições de vínculos duradouros e sólidos que permitam uma suficiente estabilidade e segurança para a prospecção do mundo.The present study discusses the meaning of family bonding for sheltered children, victims of domestic violence. These children's hope of recovering the family ties is analyzed as a search for a psychosocial status. The sheltered children, who suffered a rupture in the primeval filiation and history of life, float among ephemeral bonding, without references of their past and without fixed and solid points for their establishment in the present to serve as a guide or new filiations. Such condition of unfilial behavior is focused as a tendency of the contemporary society in loosening bonding, moving psychosocial status and producing non-stable situations favoring a movable subjectivity where family ties is not a priority. As a conclusion, it is appointed a historical continuity of oppression of the childhood caused by the condition of transitional attachment in

  19. Browder's type strong convergence theorems for infinite families of nonexpansive mappings in Banach spaces

    Directory of Open Access Journals (Sweden)

    Suzuki Tomonari

    2006-01-01

    Full Text Available We prove Browder's type strong convergence theorems for infinite families of nonexpansive mappings. One of our main results is the following: let be a bounded closed convex subset of a uniformly smooth Banach space . Let be an infinite family of commuting nonexpansive mappings on . Let and be sequences in satisfying for . Fix and define a sequence in by for . Then converges strongly to , where is the unique sunny nonexpansive retraction from onto .

  20. Germline rearrangements in families with strong family history of glioma and malignant melanoma, colon, and breast cancer

    Science.gov (United States)

    Andersson, Ulrika; Wibom, Carl; Cederquist, Kristina; Aradottir, Steina; Borg, Åke; Armstrong, Georgina N.; Shete, Sanjay; Lau, Ching C.; Bainbridge, Matthew N.; Claus, Elizabeth B.; Barnholtz-Sloan, Jill; Lai, Rose; Il'yasova, Dora; Houlston, Richard S.; Schildkraut, Joellen; Bernstein, Jonine L.; Olson, Sara H.; Jenkins, Robert B.; Lachance, Daniel H.; Wrensch, Margaret; Davis, Faith G.; Merrell, Ryan; Johansen, Christoffer; Sadetzki, Siegal; Bondy, Melissa L.; Melin, Beatrice S.; Adatto, Phyllis; Morice, Fabian; Payen, Sam; McQuinn, Lacey; McGaha, Rebecca; Guerra, Sandra; Paith, Leslie; Roth, Katherine; Zeng, Dong; Zhang, Hui; Yung, Alfred; Aldape, Kenneth; Gilbert, Mark; Weinberger, Jeffrey; Colman, Howard; Conrad, Charles; de Groot, John; Forman, Arthur; Groves, Morris; Levin, Victor; Loghin, Monica; Puduvalli, Vinay; Sawaya, Raymond; Heimberger, Amy; Lang, Frederick; Levine, Nicholas; Tolentino, Lori; Saunders, Kate; Thach, Thu-Trang; Iacono, Donna Dello; Sloan, Andrew; Gerson, Stanton; Selman, Warren; Bambakidis, Nicholas; Hart, David; Miller, Jonathan; Hoffer, Alan; Cohen, Mark; Rogers, Lisa; Nock, Charles J; Wolinsky, Yingli; Devine, Karen; Fulop, Jordonna; Barrett, Wendi; Shimmel, Kristen; Ostrom, Quinn; Barnett, Gene; Rosenfeld, Steven; Vogelbaum, Michael; Weil, Robert; Ahluwalia, Manmeet; Peereboom, David; Staugaitis, Susan; Schilero, Cathy; Brewer, Cathy; Smolenski, Kathy; McGraw, Mary; Naska, Theresa; Rosenfeld, Steven; Ram, Zvi; Blumenthal, Deborah T.; Bokstein, Felix; Umansky, Felix; Zaaroor, Menashe; Cohen, Avi; Tzuk-Shina, Tzeela; Voldby, Bo; Laursen, René; Andersen, Claus; Brennum, Jannick; Henriksen, Matilde Bille; Marzouk, Maya; Davis, Mary Elizabeth; Boland, Eamon; Smith, Marcel; Eze, Ogechukwu; Way, Mahalia; Lada, Pat; Miedzianowski, Nancy; Frechette, Michelle; Paleologos, Nina; Byström, Gudrun; Svedberg, Eva; Huggert, Sara; Kimdal, Mikael; Sandström, Monica; Brännström, Nikolina; Hayat, Amina; Tihan, Tarik; Zheng, Shichun; Berger, Mitchel; Butowski, Nicholas; Chang, Susan; Clarke, Jennifer; Prados, Michael; Rice, Terri; Sison, Jeannette; Kivett, Valerie; Duo, Xiaoqin; Hansen, Helen; Hsuang, George; Lamela, Rosito; Ramos, Christian; Patoka, Joe; Wagenman, Katherine; Zhou, Mi; Klein, Adam; McGee, Nora; Pfefferle, Jon; Wilson, Callie; Morris, Pagan; Hughes, Mary; Britt-Williams, Marlin; Foft, Jessica; Madsen, Julia; Polony, Csaba; McCarthy, Bridget; Zahora, Candice; Villano, John; Engelhard, Herbert; Borg, Ake; Chanock, Stephen K; Collins, Peter; Elston, Robert; Kleihues, Paul; Kruchko, Carol; Petersen, Gloria; Plon, Sharon; Thompson, Patricia; Johansen, C.; Sadetzki, S.; Melin, B.; Bondy, Melissa L.; Lau, Ching C.; Scheurer, Michael E.; Armstrong, Georgina N.; Liu, Yanhong; Shete, Sanjay; Yu, Robert K.; Aldape, Kenneth D.; Gilbert, Mark R.; Weinberg, Jeffrey; Houlston, Richard S.; Hosking, Fay J.; Robertson, Lindsay; Papaemmanuil, Elli; Claus, Elizabeth B.; Claus, Elizabeth B.; Barnholtz-Sloan, Jill; Sloan, Andrew E.; Barnett, Gene; Devine, Karen; Wolinsky, Yingli; Lai, Rose; McKean-Cowdin, Roberta; Il'yasova, Dora; Schildkraut, Joellen; Sadetzki, Siegal; Yechezkel, Galit Hirsh; Bruchim, Revital Bar-Sade; Aslanov, Lili; Sadetzki, Siegal; Johansen, Christoffer; Kosteljanetz, Michael; Broholm, Helle; Bernstein, Jonine L.; Olson, Sara H.; Schubert, Erica; DeAngelis, Lisa; Jenkins, Robert B.; Yang, Ping; Rynearson, Amanda; Andersson, Ulrika; Wibom, Carl; Henriksson, Roger; Melin, Beatrice S.; Cederquist, Kristina; Aradottir, Steina; Borg, Åke; Merrell, Ryan; Lada, Patricia; Wrensch, Margaret; Wiencke, John; Wiemels, Joe; McCoy, Lucie; McCarthy, Bridget J.; Davis, Faith G.

    2014-01-01

    Background Although familial susceptibility to glioma is known, the genetic basis for this susceptibility remains unidentified in the majority of glioma-specific families. An alternative approach to identifying such genes is to examine cancer pedigrees, which include glioma as one of several cancer phenotypes, to determine whether common chromosomal modifications might account for the familial aggregation of glioma and other cancers. Methods Germline rearrangements in 146 glioma families (from the Gliogene Consortium; http://www.gliogene.org/) were examined using multiplex ligation-dependent probe amplification. These families all had at least 2 verified glioma cases and a third reported or verified glioma case in the same family or 2 glioma cases in the family with at least one family member affected with melanoma, colon, or breast cancer.The genomic areas covering TP53, CDKN2A, MLH1, and MSH2 were selected because these genes have been previously reported to be associated with cancer pedigrees known to include glioma. Results We detected a single structural rearrangement, a deletion of exons 1-6 in MSH2, in the proband of one family with 3 cases with glioma and one relative with colon cancer. Conclusions Large deletions and duplications are rare events in familial glioma cases, even in families with a strong family history of cancers that may be involved in known cancer syndromes. PMID:24723567

  1. Tongue-Tie (Ankyloglossia)

    Science.gov (United States)

    ... ENTCareers Marketplace Find an ENT Doctor Near You Tongue-tie (Ankyloglossia) Tongue-tie (Ankyloglossia) Patient Health Information ... may be serious in some individuals. When Is Tongue-tie a Problem That Needs Treatment? In Infants ...

  2. Strong convergence to common fixed points of a finite family of Z ...

    African Journals Online (AJOL)

    user

    In this paper, we consider an implicit iteration process for approximating common fixed points of a finite family of Z- operators and ... We recall some definitions in a metric space (. ),. X d . .... Later on, Chidume and Shahzad studied the strong convergence of the this implicit process to a common fixed point for a finite family of ...

  3. Network ties and survival

    DEFF Research Database (Denmark)

    Acheampong, George; Narteh, Bedman; Rand, John

    2017-01-01

    of the SCPFs in Ghana. Distribution ties are associated with negative survival chances and this is not even reversed if the human capital of the owner increases although managers with higher human capital and higher distribution ties experience positive effects. Industry ties are associated with positive ties...

  4. New Tech, New Ties:

    DEFF Research Database (Denmark)

    Ling, Richard

    —those mediated by mobile communication and those that are face to face. Ling finds that through the use of various social rituals the mobile telephone strengthens social ties within the circle of friends and family—sometimes at the expense of interaction with those who are physically present—and creates what he...... bonding. From this perspective, he examines how mobile communication affects face-to-face ritual situations and how ritual is used in interaction mediated by mobile communication. He looks at the evidence, including interviews and observations from around the world, that documents the effect of mobile......The message of this book is simple: the mobile phone strengthens social bonds among family and friends. With a traditional land-line telephone, we place calls to a location and ask hopefully if someone is "there"; with a mobile phone, we have instant and perpetual access to friends and family...

  5. Close ties: an exploratory Colored Eco-Genetic Relationship Map (CEGRM study of social connections of men in Familial Testicular Cancer (FTC families

    Directory of Open Access Journals (Sweden)

    Peters June A

    2012-03-01

    Full Text Available Abstract Background Testicular cancer, while rare compared with other adult solid tumors, is the most common cancer in young men in northern Europe and North America. Risk factors include white race, positive family history, contralateral testicular cancer, cryptorchidism, infertility and testicular microlithiasis. As the genetic causes of familial clusters (Familial Testicular Cancer or FTC are being sought, it is also important to understand the psycho-social experiences of members of FTC families. Methods This is a cross-sectional examination via the Colored Eco-Genetic Relationship Map (CEGRM of social connections reported by 49 men in FTC families participating in NCI research study 02-C-178. Results The CEGRM was acceptable and feasible for use with men in FTC families, and valuable in understanding their social connections. These men have largely adjusted to the TC history in themselves and/or their relatives. They have considerable social and emotional support from family and friends, although there is wide variability in sources and types. Conclusions The CEGRM focuses on men's social connections and close emotional bonds in FTC families. This action-oriented process of placing colored symbols on significant relationships uncovered previously under-appreciated emotions accompanying men's social exchanges. Most men in FTC families succeed in re-establishing a sense of normalcy in their lives and social connections, in the aftermath of a testicular cancer diagnosis.

  6. Strong convergence to common fixed points of a finite family of Z ...

    African Journals Online (AJOL)

    user

    Zhou and Chang introduced the convergence of modified implicit iteration process for a finite family of asymptotically nonexpansive mappings in uniformly convex Banach spaces (Zhou and Chang, 2002). In 2006, Rafiq studied the following implicit iteration process for strong convergence to a common fixed point for a finite ...

  7. Strongly regular family of boundary-fitted tetrahedral meshes of bounded C^2 domains

    Czech Academy of Sciences Publication Activity Database

    Hošek, Radim

    2016-01-01

    Roč. 61, č. 3 (2016), s. 233-251 ISSN 0862-7940 EU Projects: European Commission(XE) 320078 - MATHEF Institutional support: RVO:67985840 Keywords : boundary fitted mesh * strongly regular family * Sommerville tetrahedron Subject RIV: BA - General Mathematics Impact factor: 0.618, year: 2016 http://hdl.handle.net/10338.dmlcz/145699

  8. Tie rod insertion test

    CERN Multimedia

    B. LEVESY

    2002-01-01

    The superconducting coil is inserted in the outer vaccum tank and supported by a set of tie rods. These tie rods are made of titanium alloy. This test reproduce the final insertion of the tie rods inside the outer vacuum tank.

  9. The strongly coupled fourth family and a first-order electroweak phase transition. 1. Quark sector

    International Nuclear Information System (INIS)

    Kikukawa, Yoshio; Kohda, Masaya; Yasuda, Junichiro

    2009-01-01

    In models of dynamical electroweak symmetry breaking due to strongly coupled fourth-family quarks and leptons, their low-energy effective descriptions may involve multiple composite Higgs fields, leading to a possibility that the electroweak phase transition at finite temperature is first-order due to the Coleman-Weinberg mechanism. We examine the behavior of the electroweak phase transition on the basis of the effective renormalizable Yukawa theory, which consists of the fourth-family quarks and two SU(2)-doublet Higgs fields corresponding to the bilinear operators of the fourth-family quarks with/without imposing the compositeness condition. The strength of the first-order phase transition is estimated using the finite-temperature effective potential at one loop with ring improvement. In the Yukawa theory without the compositeness condition, it is found that there is a parameter region where the first-order phase transition is sufficiently strong for the electroweak baryogenesis with the experimentally acceptable Higgs boson and fourth-family quark masses. On the other hand, when the compositeness condition is imposed, the phase transition turns out to be weakly first-order, or possibly second-order, although the result is rather sensitive to the details of the compositeness condition. By combining with the result of the Yukawa theory without the compositeness condition, it is argued that with the fourth-family quark masses in the range of 330-480 GeV, corresponding to the compositeness scale in the range of 1.0-2.3 TeV, the four-fermion interaction among the fourth-family quarks does not lead to the strongly first-order electroweak phase transition. (author)

  10. Senior Managers’ Network Tie Use

    DEFF Research Database (Denmark)

    Zarzecka, Olga; Villeseche, Florence

    While the importance or even necessity to build and maintain resourceful social networks appears as a forthright fact, there is still a lack of certainty as to who benefits from the resources that can be accessed through senior managers’ networks, and under what conditions. In this paper, we...... contribute to answering this puzzle with a sample constituted of senior managers from Denmark and their network ties, and investigate both economic and sociological conditions of senior managers’ tie use. Our results show that the greater the distance between aspiration level and actual firm performance......, the more likely it is that senior managers will use their network ties to access resources that benefit chiefly the individual rather than the organization. In addition, we demonstrate that this rapport is moderated by senior managers’ social identity as a member of the corporate elite, so that a strong...

  11. Family ties and intergenerational relationships in European families in the twentieth century [Więzy rodzinne i relacje międzypokoleniowe w rodzinach europejskich w XX wieku

    Directory of Open Access Journals (Sweden)

    Marie MAREČKOVÁ

    2017-11-01

    Full Text Available Intergenerational family relationships still performed an important social function in rural society in Europe at the beginning of the twentieth century. The situation within the Czech family illustrates the current problems in family ties and intergenerational relationships that have surfaced since the nineteen nineties. Negative developmental trends are being seen, particularly in comparison with family circumstances in other European countries, most significantly the continuing ageing of the population and the wide-ranging activities of seniors. Looser relationships with their families and a decline in their engagement in caring for their grandchildren mean that Czech grandparents tend to rank alongside more socially developed countries in this respect. Under Czech conditions, however, this can lead to great strain on the active roles played by seniors. The growing number of adult offspring, particularly men, living with their parents is a far from progressive trend in social and economic development, and corresponds more closely with southern European traditions. A preference for alternative forms of cohabitation, particularly among partners with primary education, the postponing of the birth of the first child, the growth in the number of single-person households and, perhaps most importantly, the enormous rise in the number of households comprised of young or middle-aged individuals in the economically productive age group may, it is true, rank the Czech Republic among socially developed countries and at around the European average, though in view of the unfavourable demographic trend a fundamental change in state support for marriage and the family is, however, also essential in the Czech Republic. The fact is that more than a third of families with children are threatened with poverty. The conclusion arising from the analyses performed indicates that the current problems in state social and family policy are reflected in the increasing

  12. Postabortion Care: 20 Years of Strong Evidence on Emergency Treatment, Family Planning, and Other Programming Components.

    Science.gov (United States)

    Huber, Douglas; Curtis, Carolyn; Irani, Laili; Pappa, Sara; Arrington, Lauren

    2016-09-28

    Worldwide 75 million women need postabortion care (PAC) services each year following safe or unsafe induced abortions and miscarriages. We reviewed more than 550 studies on PAC published between 1994 and 2013 in the peer-reviewed and gray literature, covering emergency treatment, postabortion family planning, organization of services, and related topics that impact practices and health outcomes, particularly in the Global South. In this article, we present findings from studies with strong evidence that have major implications for programs and practice. For example, vacuum aspiration reduced morbidity, costs, and time in comparison to sharp curettage. Misoprostol 400 mcg sublingually or 600 mcg orally achieved 89% to 99% complete evacuation rates within 2 weeks in multiple studies and was comparable in effectiveness, safety, and acceptability to manual vacuum aspiration. Misoprostol was safely introduced in several PAC programs through mid-level providers, extending services to secondary hospitals and primary health centers. In multiple studies, postabortion family planning uptake before discharge increased by 30-70 percentage points within 1-3 years of strengthening postabortion family planning services; in some cases, increases up to 60 percentage points in 4 months were achieved. Immediate postabortion contraceptive acceptance increased on average from 32% before the interventions to 69% post-intervention. Several studies found that women receiving immediate postabortion intrauterine devices and implants had fewer unintended pregnancies and repeat abortions than those who were offered delayed insertions. Postabortion family planning is endorsed by the professional organizations of obstetricians/gynecologists, midwives, and nurses as a standard of practice; major donors agree, and governments should be encouraged to provide universal access to postabortion family planning. Important program recommendations include offering all postabortion women family planning

  13. Religion and ties between adult children and their parents.

    Science.gov (United States)

    King, Valarie; Ledwell, Maggie; Pearce-Morris, Jennifer

    2013-09-01

    This study examined whether religious adults (measured by the frequency of attendance at religious services) report more extensive ties with their parents. Using data from the National Survey of Families and Households (N = 9,002), a series of bivariate and multivariate regression models were tested. Several dimensions of adult children's relationships with their parents were considered including relationship quality, frequency of contact, providing care to parents, and providing other assistance. Adult children who attended religious services more frequently were significantly more likely to provide assistance to parents, and they reported higher quality relationships and more frequent contact with both their fathers and mothers. Results were similar for sons and daughters, and for younger and older adult children. A better understanding of what motivates and fosters strong ties between adult children and their parents is vitally important given the "graying" of America and the consequences of such ties for the health and well-being of both generations. Religion is only one of many factors associated with adult children's ties to parents, and this association is generally modest, but it is an important factor that should be given greater attention in future research.

  14. Skin cancer screening behaviours among individuals with a strong family history of malignant melanoma.

    Science.gov (United States)

    Kasparian, N A; McLoone, J K; Meiser, B; Butow, P N; Simpson, J M; Mann, G J

    2010-11-09

    This study examined the prevalence and correlates of skin cancer screening behaviours among individuals at high risk of developing melanoma due to strong family history. A total of 120 individuals with a known family-specific CDKN2A mutation (72% response rate) completed a self-report questionnaire assessing annual frequency of skin self-examination (SSE), clinical skin examination (CSE) and a variety of potential demographic, clinical and psychosocial correlates. In the past 12 months, 50% of participants reported engaging in SSE at least four times, and 43% of participants had undergone at least one CSE. Engagement in SSE was associated with doctor recommendation (β=1.77, P=0.001), confidence in one's ability to perform SSE (β=1.44, Pmelanoma treatment (β=0.77, P=0.002) and intention to perform SSE in the future (β=1.69, Pmelanoma engage in suboptimal levels of skin surveillance. Improved doctor-patient communication, as well as psycho-education and behavioural support, may be viable means of improving early skin cancer detection behaviours in this high-risk population.

  15. Weak and strong convergence theorems for finite families of asymptotically nonexpansive mappings in Banach spaces

    International Nuclear Information System (INIS)

    Chidume, C.E.; Bashir, Ali

    2007-07-01

    Let E be a real uniformly convex Banach space whose dual space E* satisfies the Kadec- Klee property, K be a closed convex nonempty subset of E . Let T 1 , T 2 , . . . , T m : K → K be asymptotically nonexpansive mappings of K into E with sequences (respectively) {k in } n=1 ∞ satisfying k in → 1 as n → ∞, i = 1, 2 , ...,m and Σ n=1 ∞ (k in - 1) in } n=1 ∞ be a sequence in [ε, 1 - ε ], for each i element of { 1, 2 , . . . ,m} (respectively). Let {x n } be a sequence generated for m ≥ 2 by, x 1 element of K, x n+1 = (1 - α 1 n )x n + α 1 n T 1 n y n+m-2 , y n+m-2 = (1 - α 2 n )x n + α 2 n T 2 n y n+m-3 , ..., y n = (1 - α mn )x n + α mn T m n x n , n ≥ 1. Let Intersection i=1 m F (T i ) ≠ 0 . Then, {x n } converges weakly to a common fixed point of the family {T i } i=1 m . Under some appropriate condition on the family {T i } i=1 m , a strong convergence theorem is also roved. (author)

  16. More ties than we thought

    Directory of Open Access Journals (Sweden)

    Dan Hirsch

    2015-05-01

    Full Text Available We extend the existing enumeration of neck tie-knots to include tie-knots with a textured front, tied with the narrow end of a tie. These tie-knots have gained popularity in recent years, based on reconstructions of a costume detail from The Matrix Reloaded, and are explicitly ruled out in the enumeration by Fink & Mao (2000. We show that the relaxed tie-knot description language that comprehensively describes these extended tie-knot classes is context free. It has a regular sub-language that covers all the knots that originally inspired the work. From the full language, we enumerate 266,682 distinct tie-knots that seem tie-able with a normal neck-tie. Out of these 266,682, we also enumerate 24,882 tie-knots that belong to the regular sub-language.

  17. Persistent Staphylococcus aureus colonization is not a strongly heritable trait in Amish families.

    Directory of Open Access Journals (Sweden)

    Mary-Claire Roghmann

    2011-02-01

    Full Text Available About 20% of adults are persistently colonized with S. aureus in the anterior nares. Host genetic factors could contribute susceptibility to this phenotype. The objective of this study was to determine whether the phenotype of persistent S. aureus colonization aggregates in family members who live in different households. Healthy adults and their eligible same sex siblings who lived in different households were recruited from the Old Order Amish of Lancaster, Pennsylvania. All participants had two cultures of the anterior nares to determine if they were persistently colonized with S. aureus. Three hundred and ninety eight participants finished the study, of whom 166 were index cases and 232 were siblings of index cases. Eighteen per cent (71/398 of all participants and 17% (29/166 of index cases were persistently colonized with S. aureus. Twenty two per cent (8/36 of siblings of persistently colonized index cases were persistently colonized with S. aureus compared to 17% (34/196 of siblings of non-persistently colonized index cases, yielding a prevalence rate ratio of 1.28 (95% CI: 0.65-2.54, p = 0.64 and sibling relative risk of 1.25 (95% CI: 0.65-2.38, p = 0.51. The heritability of persistent colonization was 0.19±0.21 (p = 0.31. Persistent S. aureus colonization does not strongly aggregate in Amish family members in different households and heritability is low, suggesting that environmental factors or acquired host factors are more important than host genetic factors in determining persistent S. aureus colonization in this community.

  18. The Strength of Direct Ties

    DEFF Research Database (Denmark)

    Claussen, Jörg; Falck, Oliver; Grosjean, Thorsten

    2012-01-01

    We analyze the economic effects of a developer's connectedness in the electronic game industry. Knowledge spillovers between developers are likely to be of special relevance in this knowledge-intensive and regionally concentrated industry. We calculate social network measures for a developer......'s connectedness to other developers at multiple points in time. In a regression in which we exploit within-career variation in social network measures, we find that the number of direct ties a developer has to other developers has a strong effect on both a game's revenues and critics' scores. The quality...

  19. Metabolic Profiles of Obesity in American Indians: The Strong Heart Family Study.

    Science.gov (United States)

    Zhao, Qi; Zhu, Yun; Best, Lyle G; Umans, Jason G; Uppal, Karan; Tran, ViLinh T; Jones, Dean P; Lee, Elisa T; Howard, Barbara V; Zhao, Jinying

    2016-01-01

    Obesity is a typical metabolic disorder resulting from the imbalance between energy intake and expenditure. American Indians suffer disproportionately high rates of obesity and diabetes. The goal of this study is to identify metabolic profiles of obesity in 431 normoglycemic American Indians participating in the Strong Heart Family Study. Using an untargeted liquid chromatography-mass spectrometry, we detected 1,364 distinct m/z features matched to known compounds in the current metabolomics databases. We conducted multivariate analysis to identify metabolic profiles for obesity, adjusting for standard obesity indicators. After adjusting for covariates and multiple testing, five metabolites were associated with body mass index and seven were associated with waist circumference. Of them, three were associated with both. Majority of the obesity-related metabolites belongs to lipids, e.g., fatty amides, sphingolipids, prenol lipids, and steroid derivatives. Other identified metabolites are amino acids or peptides. Of the nine identified metabolites, five metabolites (oleoylethanolamide, mannosyl-diinositol-phosphorylceramide, pristanic acid, glutamate, and kynurenine) have been previously implicated in obesity or its related pathways. Future studies are warranted to replicate these findings in larger populations or other ethnic groups.

  20. Metabolic Profiles of Obesity in American Indians: The Strong Heart Family Study.

    Directory of Open Access Journals (Sweden)

    Qi Zhao

    Full Text Available Obesity is a typical metabolic disorder resulting from the imbalance between energy intake and expenditure. American Indians suffer disproportionately high rates of obesity and diabetes. The goal of this study is to identify metabolic profiles of obesity in 431 normoglycemic American Indians participating in the Strong Heart Family Study. Using an untargeted liquid chromatography-mass spectrometry, we detected 1,364 distinct m/z features matched to known compounds in the current metabolomics databases. We conducted multivariate analysis to identify metabolic profiles for obesity, adjusting for standard obesity indicators. After adjusting for covariates and multiple testing, five metabolites were associated with body mass index and seven were associated with waist circumference. Of them, three were associated with both. Majority of the obesity-related metabolites belongs to lipids, e.g., fatty amides, sphingolipids, prenol lipids, and steroid derivatives. Other identified metabolites are amino acids or peptides. Of the nine identified metabolites, five metabolites (oleoylethanolamide, mannosyl-diinositol-phosphorylceramide, pristanic acid, glutamate, and kynurenine have been previously implicated in obesity or its related pathways. Future studies are warranted to replicate these findings in larger populations or other ethnic groups.

  1. Long-term effects of the strong African American families program on youths' alcohol use.

    Science.gov (United States)

    Brody, Gene H; Chen, Yi-Fu; Kogan, Steven M; Murry, Velma McBride; Brown, Anita C

    2010-04-01

    This report extends earlier accounts by addressing the effects of the Strong African American Families (SAAF) program across 65 months. Two hypotheses were tested: (a) Rural African American youths randomly assigned to participate in SAAF would demonstrate lower rates of alcohol use than would control youths more than 5 years later, and (b) SAAF's effects on deterring the onset of alcohol use in early adolescence would carry forward to mediate the program's long-term effects. African American youths in rural Georgia (mean age at pretest = 10.8 years) were assigned randomly to the SAAF group (n = 369) or to a control group (n = 298). Past-month alcohol use was assessed at pretest and at 9, 18, 29, 53, and 65 months after pretest. SAAF participants increased their alcohol use at a slower rate than did adolescents in the control condition across the follow-up assessments. At the 65-month assessment, SAAF participants reported having drunk alcohol half as often as did youths in the control group. Consistent with the second hypothesis, SAAF's effects on deterring initiation carried forward to account for its effects on alcohol use across time. Training in protective parenting processes and self-regulatory skills during preadolescence may contribute to a self-sustaining trajectory of disinterest in and avoidance of alcohol use during adolescence when peers begin to model and sanction it. (c) 2010 APA, all rights reserved

  2. Germline rearrangements in families with strong family history of glioma and malignant melanoma, colon, and breast cancer

    DEFF Research Database (Denmark)

    Andersson, Ulrika; Wibom, Carl; Cederquist, Kristina

    2014-01-01

    BACKGROUND: Although familial susceptibility to glioma is known, the genetic basis for this susceptibility remains unidentified in the majority of glioma-specific families. An alternative approach to identifying such genes is to examine cancer pedigrees, which include glioma as one of several can...

  3. Inferring tie strength from online directed behavior.

    Directory of Open Access Journals (Sweden)

    Jason J Jones

    Full Text Available Some social connections are stronger than others. People have not only friends, but also best friends. Social scientists have long recognized this characteristic of social connections and researchers frequently use the term tie strength to refer to this concept. We used online interaction data (specifically, Facebook interactions to successfully identify real-world strong ties. Ground truth was established by asking users themselves to name their closest friends in real life. We found the frequency of online interaction was diagnostic of strong ties, and interaction frequency was much more useful diagnostically than were attributes of the user or the user's friends. More private communications (messages were not necessarily more informative than public communications (comments, wall posts, and other interactions.

  4. Nationwide Registry-Based Analysis of Cancer Clustering Detects Strong Familial Occurrence of Kaposi Sarcoma

    Science.gov (United States)

    Vahteristo, Pia; Patama, Toni; Li, Yilong; Saarinen, Silva; Kilpivaara, Outi; Pitkänen, Esa; Knekt, Paul; Laaksonen, Maarit; Artama, Miia; Lehtonen, Rainer; Aaltonen, Lauri A.; Pukkala, Eero

    2013-01-01

    Many cancer predisposition syndromes are rare or have incomplete penetrance, and traditional epidemiological tools are not well suited for their detection. Here we have used an approach that employs the entire population based data in the Finnish Cancer Registry (FCR) for analyzing familial aggregation of all types of cancer, in order to find evidence for previously unrecognized cancer susceptibility conditions. We performed a systematic clustering of 878,593 patients in FCR based on family name at birth, municipality of birth, and tumor type, diagnosed between years 1952 and 2011. We also estimated the familial occurrence of the tumor types using cluster score that reflects the proportion of patients belonging to the most significant clusters compared to all patients in Finland. The clustering effort identified 25,910 birth name-municipality based clusters representing 183 different tumor types characterized by topography and morphology. We produced information about familial occurrence of hundreds of tumor types, and many of the tumor types with high cluster score represented known cancer syndromes. Unexpectedly, Kaposi sarcoma (KS) also produced a very high score (cluster score 1.91, p-value <0.0001). We verified from population records that many of the KS patients forming the clusters were indeed close relatives, and identified one family with five affected individuals in two generations and several families with two first degree relatives. Our approach is unique in enabling systematic examination of a national epidemiological database to derive evidence of aberrant familial aggregation of all tumor types, both common and rare. It allowed effortless identification of families displaying features of both known as well as potentially novel cancer predisposition conditions, including striking familial aggregation of KS. Further work with high-throughput methods should elucidate the molecular basis of the potentially novel predisposition conditions found in this

  5. Good Health, Strong Families, and Positive Early Learning Experiences: Promoting Better Public Policies for America's Infants and Toddlers

    Science.gov (United States)

    Lally, J. Ronald; Lurie-Hurvitz, Erica; Cohen, Julie

    2006-01-01

    The ZERO TO THREE Policy Center has three areas of focus: good health, strong families, and positive early learning experiences. Effective policies must promote healthy functioning in all domains, including cognitive, physical, and social and emotional development. Comprehensive services are essential to meeting the needs of very young children…

  6. Breast magnetic resonance imaging significance for breast cancer diagnostic in women with genetic predisposition and a strong family history

    Directory of Open Access Journals (Sweden)

    M. S. Karpova

    2013-01-01

    Full Text Available Screening of breast cancer with mammography recommended to women over 40 has been shown to decrease breast cancer mortality. But mam- mography has much lower accuracy in young women with BRCA1/2 mutations and women with a strong family history. Therefore new screening methods in young high-risk women are necessary to detect early-stage cancer.

  7. The Effects of Building Strong Families: A Healthy Marriage and Relationship Skills Education Program for Unmarried Parents

    Science.gov (United States)

    Wood, Robert G.; McConnell, Sheena; Moore, Quinn; Clarkwest, Andrew; Hsueh, JoAnn

    2012-01-01

    This article examines the impacts of Building Strong Families, a healthy marriage and relationship skills education program serving unmarried parents who were expecting or had recently had a baby. Based on a random assignment research design, the analysis uses survey data from more than 4,700 couples across eight research sites to estimate program…

  8. Networking by entrepreneurs: patterns of tie formation for emerging organizations

    NARCIS (Netherlands)

    Elfring, T.; Hulsink, W.

    2007-01-01

    There are two conflicting patterns of network development of founding entrepreneurs that emerge from existing literature. One of them evolves from an identity-based network dominated by strong ties into an intentionally managed network rich in weak ties. The other involves the opposite, with weak

  9. Copy-number variants in patients with a strong family history of pancreatic cancer.

    Science.gov (United States)

    Lucito, Robert; Suresh, Shubha; Walter, Kimberly; Pandey, Akhilesh; Lakshmi, B; Krasnitz, Alex; Sebat, Jonathan; Wigler, Michael; Klein, Alison P; Brune, Kieran; Palmisano, Emily; Maitra, Anirban; Goggins, Michael; Hruban, Ralph H

    2007-10-01

    Copy-number variants such as germ-line deletions and amplifications are associated with inherited genetic disorders including familial cancer. The gene or genes responsible for the majority of familial clustering of pancreatic cancer have not been identified. We used representational oligonucleotide microarray analysis (ROMA) to characterize germ-line copy number variants in 60 cancer patients from 57 familial pancreatic cancer kindreds. Fifty-seven of the 60 patients had pancreatic cancer and three had nonpancreatic cancers (breast, ovary, ovary). A familial pancreatic cancer kindred was defined as a kindred in which at least two first-degree relatives have been diagnosed with pancreatic cancer. Copy-number variants identified in 607 individuals without pancreatic cancer were excluded from further analysis. A total of 56 unique genomic regions with copy-number variants not present in controls were identified, including 31 amplifications and 25 deletions. Two deleted regions were observed in two different patients, and one in three patients. The germ-line amplifications had a mean size of 662 Kb, a median size of 379 Kb (range 8.2 Kb to 2.5 Mb) and included 425 known genes. Examples of genes included in the germ-line amplifications include the MAFK, JunD and BIRC6 genes. The germ-line deletions had a mean size of 375Kb, a median size 151 Kb (range 0.4 Kb to 2.3 Mb) and included 81 known genes. In multivariate analysis controlling for region size, deletions were 90% less likely to involve a gene than were duplications (p time PCR, including a germ-line amplification on chromosome 19. These genetic copy-number variants define potential candidate loci for the familial pancreatic cancer gene.

  10. Relevant ties matter

    DEFF Research Database (Denmark)

    Larsen, Christian Albrekt; Pedersen, Jacob; Mouw, Ted

    What is the effect of social networks on labor market outcomes? The tradition following Grannovetter claims that social ties have a positive effect on wages, job prestige and job satisfaction. Although a number of studies have found positive correlations between friendship characteristics...... to find work. Results indicate that the number of industry-specific colleagues is both associated higher employment rates with the probability of using contacts to find work. We argue that this is consistent with a causal role of social networks in the labor market, as former colleagues provide...... information about job openings....

  11. Redes sociais em comunidades de baixa renda: os efeitos diferenciais dos laços fracos e dos laços fortes Social networks in low-income communities: the differential effects of weak and strong ties

    Directory of Open Access Journals (Sweden)

    Antônio Augusto Pereira Prates

    2009-10-01

    Full Text Available Neste artigo demonstramos, a partir de uma replicação qualitativa de um estudo quantitativo, que os sistemas fechados de interação - aqui denominados capital social - e os abertos - laços fracos - são fenômenos de natureza distinta e, consequentemente, desempenham funções distintas na determinação da capacidade de articulação coletiva de indivíduos e no grau de eficácia de ações coletivas. A hipótese principal do artigo é que, enquanto capital social tem a ver com maior capacidade dos membros da comunidade para articular mobilização social, os laços fracos dizem respeito à capacidade de a comunidade conseguir benefícios, como saneamento básico, segurança pública, transporte coletivo, saúde e lazer - aqui denominada eficácia coletiva. A metodologia adotada baseia-se na replicação qualitativa de um survey, com três estudos de caso em comunidades periféricas da Região Metropolitana de Belo Horizonte, sobre a importância dos laços fracos para a ação eficaz da comunidade diante do poder público.This article demonstrates, through a qualitative replication of a quantitative research - a survey - that the concepts of closed interaction systems - social capital - and open ones - weak ties - refer to different kinds of social phenomena and, therefore, have independent roles in determining the individuals' capability of collective articulation as well as the effectiveness of the collective actions. The main hypothesis is that while social capital has to do with the people's ability to articulate social mobilization, weak ties have to do with the community's capability to obtain services such as sanitation, public safety, transportation, health care and leisure facilities - here called collective effectiveness. The study comprised a qualitative replication of a survey, with three case studies of low-income communities in the Belo Horizonte metropolitan area.

  12. Strong Convergence Theorems for a Countable Family of Total Quasi-ϕ-Asymptotically Nonexpansive Nonself Mappings

    Directory of Open Access Journals (Sweden)

    Liang-cai Zhao

    2012-01-01

    Full Text Available The purpose of this paper is to introduce a class of total quasi-ϕ-asymptotically nonexpansive-nonself mappings and to study the strong convergence under a limit condition only in the framework of Banach spaces. As an application, we utilize our results to study the approximation problem of solution to a system of equilibrium problems. The results presented in the paper extend and improve the corresponding results announced by some authors recently.

  13. Familial Longevity Is Associated With Higher TSH Secretion and Strong TSH-fT3 Relationship

    DEFF Research Database (Denmark)

    Jansen, Steffy W; Roelfsema, Ferdinand; van der Spoel, Evie

    2015-01-01

    CONTEXT: Longevity is associated with changes in circulating levels of thyroid hormone (TH) and/or TSH in animals and humans, but underlying mechanisms remain elusive. OBJECTIVE: We explored in 38 offspring of nonagenarian participants from the Leiden Longevity Study, who are enriched for longevity...... properties of TSH. The temporal relationship between TSH and free T3 at zero delay was higher in offspring (0.48 ± 0.2) compared with partners (0.26 ± 0.4) (P = .05), but the feedback and forward interplay between TSH and TH did not differ. CONCLUSIONS: Familial longevity is associated with increased basal...

  14. Strength matters: Tie strength as a causal driver of networks' information benefits.

    Science.gov (United States)

    Kim, Minjae; Fernandez, Roberto M

    2017-07-01

    Studies of social networks have often taken the existence of a social tie as a proxy for the transmission of information. However, other studies of social networks in the labor market propose that the likelihood of information transmission might depend on strength of the tie; and that tie strength is a potentially important source of the tie's value. After all, even if job seekers have social ties to those who have valuable job information, the seekers will gain little information benefit when the ties do not actually transmit the information. This paper clarifies the conditions under which social ties might provide information benefits. We use a survey vignette experiment and ask MBA students about their likelihood of relaying job information via strong ties (to friends) or weak ties (to acquaintances), holding constant the structural locations spanned by the tie and job seekers' fit with the job. The results support the claim that strength of tie has a causal effect on the chances of information transmission: potential referrers are more likely to relay job information to their friends than to acquaintances. The larger implication of these findings is that whatever benefits there might be to using weak ties to reach distant non-redundant information during job search, these benefits need to be considered against the likely fact that people connected via weak ties are less likely to actually share information about job opportunities than are people to whom the job seeker is strongly tied. Copyright © 2016 Elsevier Inc. All rights reserved.

  15. Strongly enhanced colorectal cancer risk stratification by combining family history and genetic risk score

    Directory of Open Access Journals (Sweden)

    Weigl K

    2018-01-01

    Full Text Available Korbinian Weigl,1,2 Jenny Chang-Claude,3,4 Phillip Knebel,5 Li Hsu,6 Michael Hoffmeister,1 Hermann Brenner1,2,7 1Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ, Heidelberg, 2German Cancer Consortium (DKTK, German Cancer Research Center (DKFZ, Heidelberg, 3Unit of Genetic Epidemiology, German Cancer Research Center (DKFZ, Heidelberg, 4University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, 5Department for General, Visceral and Transplantation Surgery, University Heidelberg, Heidelberg, Germany; 6Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA; 7Division of Preventive Oncology, German Cancer Research Center (DKFZ and National Center for Tumor Diseases (NCT, Heidelberg, Germany Background and aim: Family history (FH and genetic risk scores (GRSs are increasingly used for risk stratification for colorectal cancer (CRC screening. However, they were mostly considered alternatively rather than jointly. The aim of this study was to assess the potential of individual and joint risk stratification for CRC by FH and GRS.Patients and methods: A GRS was built based on the number of risk alleles in 53 previously identified single-nucleotide polymorphisms among 2,363 patients with a first diagnosis of CRC and 2,198 controls in DACHS [colorectal cancer: chances for prevention through screening], a population-based case-control study in Germany. Associations between GRS and FH with CRC risk were quantified by multiple logistic regression.Results: A total of 316 cases (13.4% and 214 controls (9.7% had a first-degree relative (FDR with CRC (adjusted odds ratio [aOR] 1.86, 95% CI 1.52–2.29. A GRS in the highest decile was associated with a 3.0-fold increased risk of CRC (aOR 3.00, 95% CI 2.24–4.02 compared with the lowest decile. This association was tentatively more pronounced in older age groups. FH and GRS were essentially unrelated, and their

  16. Ties that Blind: Perpetuation of Racial Comfort and Discomfort at a Community College

    Science.gov (United States)

    Price, Douglas B.; Hyle, Adrienne E.; Jordan, Kitty V.

    2009-01-01

    Interviews with 17 African American students and 19 White students were employed to examine interracial relations at a predominantly White community college campus. Seen through the lens of Granovetter's strength of ties theory, the interview findings revealed that strong intraracial ties and the absence of weak interracial ties inhibited…

  17. Why do leaf-tying caterpillars abandon their leaf ties?

    Directory of Open Access Journals (Sweden)

    Michelle Sliwinski

    2013-09-01

    Full Text Available Leaf-tying caterpillars act as ecosystem engineers by building shelters between overlapping leaves, which are inhabited by other arthropods. Leaf-tiers have been observed to leave their ties and create new shelters (and thus additional microhabitats, but the ecological factors affecting shelter fidelity are poorly known. For this study, we explored the effects of resource limitation and occupant density on shelter fidelity and assessed the consequences of shelter abandonment. We first quantified the area of leaf material required for a caterpillar to fully develop for two of the most common leaf-tiers that feed on white oak, Quercus alba. On average, Psilocorsis spp. caterpillars consumed 21.65 ± 0.67 cm2 leaf material to complete development. We also measured the area of natural leaf ties found in a Maryland forest, to determine the distribution of resources available to caterpillars in situ. Of 158 natural leaf ties examined, 47% were too small to sustain an average Psilocorsis spp. caterpillar for the entirety of its development. We also manipulated caterpillar densities within experimental ties on potted trees to determine the effects of cohabitants on the likelihood of a caterpillar to leave its tie. We placed 1, 2, or 4 caterpillars in ties of a standard size and monitored the caterpillars twice daily to track their movement. In ties with more than one occupant, caterpillars showed a significantly greater propensity to leave their tie, and left sooner and at a faster rate than those in ties as single occupants. To understand the consequences of leaf tie abandonment, we observed caterpillars searching a tree for a site to build a shelter in the field. This is a risky behavior, as 17% of the caterpillars observed died while searching for a shelter site. Caterpillars that successfully built a shelter traveled 110 ± 20 cm and took 28 ± 7 min to find a suitable site to build a shelter. In conclusion, leaf-tying caterpillars must frequently

  18. Teacher, Industry and Environment (TIE).

    Science.gov (United States)

    Holmes, Neal J.; Powers, Michael H.

    A description of the Teacher, Industry and Environment (TIE) educational improvement project at Central Missouri State Univesity is provided in this report. TIE is designed for Missouri high school chemistry teachers, involving 73 of them in a weekend workshop, meeting with chemists, engineers, and educators to assist them in using resources…

  19. Tie Content in Professional Networks

    DEFF Research Database (Denmark)

    Zarzecka, Olga

    resources that senior managers acquire through their network ties, i.e. the tie content, remain heavily understudied. Hence, the purpose of this dissertation is to answer the following question: What resources flow through informal ties in senior managers’ professional networks, and why? The first chapter...... introduces the topic of this dissertation as well as the overall research question. The three next chapters are empirical studies of informal ties in professional networks of Danish senior managers, that together attempt to answer the overall research question. Chapter 2 looks into gender differences...... dynamics and studies the effect of friendship on the extent and novelty of professional advice a tie provides. The fifth and final chapter of this dissertation summarizes the findings of the research papers in the light of the overall research question. Essentially, this dissertation suggests...

  20. The Healthy Children, Strong Families intervention promotes improvements in nutrition, activity and body weight in American Indian families with young children.

    Science.gov (United States)

    Tomayko, Emily J; Prince, Ronald J; Cronin, Kate A; Adams, Alexandra K

    2016-10-01

    American Indian children of pre-school age have disproportionally high obesity rates and consequent risk for related diseases. Healthy Children, Strong Families was a family-based randomized trial assessing the efficacy of an obesity prevention toolkit delivered by a mentor v. mailed delivery that was designed and administered using community-based participatory research approaches. During Year 1, twelve healthy behaviour toolkit lessons were delivered by either a community-based home mentor or monthly mailings. Primary outcomes were child BMI percentile, child BMI Z-score and adult BMI. Secondary outcomes included fruit/vegetable consumption, sugar consumption, television watching, physical activity, adult health-related self-efficacy and perceived health status. During a maintenance year, home-mentored families had access to monthly support groups and all families received monthly newsletters. Family homes in four tribal communities, Wisconsin, USA. Adult and child (2-5-year-olds) dyads (n 150). No significant effect of the mentored v. mailed intervention delivery was found; however, significant improvements were noted in both groups exposed to the toolkit. Obese child participants showed a reduction in BMI percentile at Year 1 that continued through Year 2 (PChild fruit/vegetable consumption increased (P=0·006) and mean television watching decreased for children (P=0·05) and adults (P=0·002). Reported adult self-efficacy for health-related behaviour changes (P=0·006) and quality of life increased (P=0·02). Although no effect of delivery method was demonstrated, toolkit exposure positively affected adult and child health. The intervention was well received by community partners; a more comprehensive intervention is currently underway based on these findings.

  1. KAMG: A Tool for Converting Blood Ties and Affinity Ties into Adjacency Matrices

    Directory of Open Access Journals (Sweden)

    Hang Xiong

    2016-07-01

    Full Text Available Kinship Adjacency Matrix Generator (KAMG is a browser-based software for creating adjacency matrices using the information of kinship ties. Specifically, it is capable of converting the family trees in the format of GEDCOM files into adjacency matrices of blood relationship. With the data of intermarriages between different families, it can further create the adjacency matrix of affinity relationship for the families. The outcomes can be directly used to create networks. KAMG is written in JavaScript and implemented on web browsers. It is completely open source and the source code is publicly available on GitHub.

  2. Social network ties beyond nonredundancy: an experimental investigation of the effect of knowledge content and tie strength on creativity.

    Science.gov (United States)

    Perry-Smith, Jill E

    2014-09-01

    Social network research emphasizes the access to nonredundant knowledge content that network ties provide. I suggest that some content is more beneficial than others and that tie strength may affect creativity for reasons other than the associated structure. That is, tie strength may affect how individuals process nonredundant knowledge. I investigate 2 types of knowledge content--information (i.e., facts or data) and frames (i.e., interpretations or impressions)--and explore whether tie strength influences their effect on creativity. Drawing on creativity theory, I employ an experimental design to provide greater theoretical clarity and to isolate causality. According to the results from 2 studies, distinct frames received from contacts facilitate creativity, but the effect of distinct information is more complex. When individuals receive distinct information from strong ties, it constrains creativity compared to distinct frames. Content from weak ties appears to facilitate creativity across all scenarios. The results of mediated moderation analysis indicate the effect of framing versus information for strong ties is driven by decision-making time, as an indicator of cognitive expansion. PsycINFO Database Record (c) 2014 APA, all rights reserved.

  3. Evaluation of longitudinal joint tie bar system.

    Science.gov (United States)

    2011-09-01

    "An adequate longitudinal joint tie bar system is essential in the overall performance of concrete pavement. Excessive : longitudinal joint openings are believed to be caused by either inadequate tie bar size or spacing or improper tie bar : installa...

  4. Instability of ties in compression

    DEFF Research Database (Denmark)

    Buch-Hansen, Thomas Cornelius

    2013-01-01

    exact instability solutions are complex to derive, not to mention the extra complexity introducing dimensional instability from the temperature gradients. Using an inverse variable substitution and comparing an exact theory with an analytical instability solution a method to design tie...... the temperature gradient between the outer and the inner wall, which results in critical increase of the bending moments in the ties. Since the ties are loaded by combined compression and moment forces, the loadbearing capacity is derived from instability equilibrium equations. Most of them are iterative, since......-connectors in cavity walls was developed. The method takes into account constraint conditions limiting the free length of the wall tie, and the instability in case of pure compression which gives an optimal load bearing capacity. The model is illustrated with examples from praxis....

  5. How Should Clinicians Counsel a Woman with a Strong Family History of Early-Onset Alzheimer's Disease about Her Pregnancy?

    Science.gov (United States)

    Mapes, Marianna V; O'Brien, Barbara M; King, Louise P

    2017-07-01

    Counseling patients regarding the benefits, harms, and dilemmas of genetic testing is one of the greatest ethical challenges facing reproductive medicine today. With or without test results, clinicians grapple with how to communicate potential genetic risks as patients weigh their reproductive options. Here, we consider a case of a woman with a strong family history of early-onset Alzheimer's disease (EOAD). She is early in her pregnancy and unsure about learning her own genetic status. We address the ethical ramifications of each of her options, which include genetic testing, genetic counseling, and termination versus continuation of the pregnancy. Our analysis foregrounds clinicians' role in helping to ensure autonomous decision making as the patient reflects on these clinical options in light of her goals and values. © 2017 American Medical Association. All Rights Reserved.

  6. New Tech, New Ties:

    DEFF Research Database (Denmark)

    Ling, Richard

    calls "bounded solidarity." Ling argues that mobile communication helps to engender and develop social cohesion within the family and the peer group. Drawing on the work of Emile Durkheim, Erving Goffman, and Randall Collins, Ling shows that ritual interaction is a catalyst for the development of social...... communication on social bonding and also examines some of the other possibly problematic issues raised by tighter social cohesion in small groups....

  7. Home, School Partnerships in Family Child Care: Providers' Relationships within Their Communities

    Science.gov (United States)

    Freeman, Ramona

    2011-01-01

    Professional family child care providers' work with children from birth through age five can be exemplary, particularly with regard to building stable and substantive relational ties. Such long-term engagements with client children and their families offer potential for strong partnership with families and local contexts over time. This paper…

  8. Web API Growing Pains : Loosely Coupled yet Strongly Tied

    NARCIS (Netherlands)

    Espinha, T.; Zaidman, A.; Gross, H.G.

    2014-01-01

    Web APIs provide a systematic and extensible approach for application-toapplication interaction. Developers using web APIs are forced to accompany the API providers in their software evolution tasks. In order to understand the distress caused by this imposition on web API client developers we

  9. Rethinking "posterior" tongue-tie.

    Science.gov (United States)

    Douglas, Pamela Sylvia

    2013-12-01

    Currently, many clinicians who help with breastfeeding problems are diagnosing "posterior" tongue-tie in infants and performing or referring for frenotomy. In this "Speaking Out" article, I argue that the diagnosis of "posterior" tongue-tie has successfully raised awareness of the importance of impaired tongue function in breastfeeding difficulty. However, the diagnosis of "posterior" tongue-tie also applies a reductionist, medicalized theoretical frame to the complex problem of impaired tongue function, risking unintended outcomes. Impaired tongue function arises out of multiple interacting and co-evolving factors, including the interplay between social behaviors concerning breastfeeding and mother-infant biology. Consideration of theoretical frames is vital if we are to build an evidence base through efficient use of the scarce resources available for clinical breastfeeding research and minimize unintended outcomes.

  10. Do recruitment ties affect wages?

    DEFF Research Database (Denmark)

    Larsen, Anna Folke; Rand, John; Torm, Nina Elisabeth

    This paper examines the extent to which recruitment ties affect individual wage outcomes in small and medium scale manufacturing firms. Based on a unique matched employer-employee dataset from Vietnam we find that there is a significant positive wage premium associated with obtaining a job through...... an informal contact, when controlling for standard determinants of wage compensation. Moreover, we show that the mechanism through which informal contacts affect wages depends on the type of recruitment tie used. The findings are robust across location, firm size categories and different worker types....

  11. Explaining Teen Childbearing and Cohabitation: Community Embeddedness and Primary Ties

    Science.gov (United States)

    Houseknecht, Sharon K.; Lewis, Susan K.

    2005-01-01

    This investigation examines whether access to social capital reduces the chance that teens will cohabit or have a nonmaritally conceived birth. Using data from a nationally representative panel study of eighth-grade girls and their parents, we hypothesize that girls who have (and whose families have) dense community ties as well as greater access…

  12. Topic Detection Based on Weak Tie Analysis: A Case Study of LIS Research

    Directory of Open Access Journals (Sweden)

    Ling Wei

    2016-11-01

    Full Text Available Purpose: Based on the weak tie theory, this paper proposes a series of connection indicators of weak tie subnets and weak tie nodes to detect research topics, recognize their connections, and understand their evolution. Design/methodology/approach: First, keywords are extracted from article titles and preprocessed. Second, high-frequency keywords are selected to generate weak tie co-occurrence networks. By removing the internal lines of clustered sub-topic networks, we focus on the analysis of weak tie subnets' composition and functions and the weak tie nodes' roles. Findings: The research topics' clusters and themes changed yearly; the subnets clustered with technique-related and methodology-related topics have been the core, important subnets for years; while close subnets are highly independent, research topics are generally concentrated and most topics are application-related; the roles and functions of nodes and weak ties are diversified. Research limitations: The parameter values are somewhat inconsistent; the weak tie subnets and nodes are classified based on empirical observations, and the conclusions are not verified or compared to other methods. Practical implications: The research is valuable for detecting important research topics as well as their roles, interrelations, and evolution trends. Originality/value: To contribute to the strength of weak tie theory, the research translates weak and strong ties concepts to co-occurrence strength, and analyzes weak ties' functions. Also, the research proposes a quantitative method to classify and measure the topics' clusters and nodes.

  13. Role Markers of Adulthood and Young Adults’ Ties to Grandparents

    Science.gov (United States)

    Monserud, Maria A.

    2010-01-01

    This study investigates the implications of residential independence, enrollment in postsecondary education, employment, marital status, and parenthood for contact with, and closeness to, grandparents. Data come from 1,507 young adults interviewed in Wave 3 of the National Survey of Families and Households. Findings suggest that adult roles can be either negatively or positively associated with grandparent-grandchild ties, depending on specific configurations among such factors as the adult role in question, a particular dimension of intergenerational solidarity, lineage, and grandchild’s and grandparent’s gender. Young adults’ ties to parents can mediate the adverse consequences of residential independence for contact with grandparents. PMID:20725597

  14. The strong commitment. The government of Vietnam has invested nearly 30% of its budget for all the social programs such as education, health, population and family planning.

    Science.gov (United States)

    Nguyen Phuong Lan

    1995-01-01

    Population and family planning activities first came into being in Vietnam in 1963 after a decree on fertility control was issued by the Council of Government on December 26, 1961. The Ministry of Health (MOH) was in charge of such activities, using its own network to provide services and mass organizations to garner public support for the acceptance of family planning. On May 13, 1979, the council transferred family planning activities to the new Committee for Maternal and Child Protection. However, that committee was soon disbanded, and family planning activities were returned to the auspices of the MOH. The National Committee for Population and Family Planning was created in 1984 under the MOH with the goal of mobilizing all social forces in population and family planning activities. Decrees of October 1988 and March 1989, and in 1991 and 1993, strengthened measures to reduce population growth and ensure that adequate family planning methods were available to couples. Vietnam's Population and Family Planning Program has strong political support. Indeed, the government of Vietnam has invested almost 30% of its budget into education, health, and population and family planning programs.

  15. Networking by entrepreneurs: Patterns of tie-formation in emerging organizations

    NARCIS (Netherlands)

    Elfring, T.; Hulsink, W.

    2007-01-01

    There are two conflicting patterns of network development of founding entrepreneurs that emerge from existing literature. One of them evolves from an identity-based network dominated by strong ties into an intentionally managed network rich in weak ties. The other involves the opposite, with weak

  16. Solidarity in Dutch families - Family ties under strain?

    NARCIS (Netherlands)

    Komter, A.E.; Vollebergh, W.A.M.

    2002-01-01

    The nature and extent of interpersonal exchange of care and help may indicate solidarity and cohesion in modern society. This article focuses on intergenerational solidarity. On the basis of empirical data from an earlier research project on giving in the Netherlands, the authors examine the nature

  17. Chronic health conditions and depressive symptoms strongly predict persistent food insecurity among rural low-income families.

    Science.gov (United States)

    Hanson, Karla L; Olson, Christine M

    2012-08-01

    Longitudinal studies of food insecurity have not considered the unique circumstances of rural families. This study identified factors predictive of discontinuous and persistent food insecurity over three years among low-income families with children in rural counties in 13 U.S. states. Respondents reported substantial knowledge of community resources, food and finance skills, and use of formal public food assistance, yet 24% had persistent food insecurity, and another 41% were food insecure for one or two years. Multivariate multinomial regression models tested relationships between human capital, social support, financial resources, expenses, and food insecurity. Enduring chronic health conditions increased the risk of both discontinuous and persistent food insecurity. Lasting risk for depression predicted only persistent food insecurity. Education beyond high school was the only factor found protective against persistent food insecurity. Access to quality physical and mental health care services are essential to ameliorate persistent food insecurity among rural, low-income families.

  18. Peru turnaround tied to privatization

    International Nuclear Information System (INIS)

    Anon.

    1993-01-01

    Petroleos del Peru predicts a 10% increase in Peru's oil production this year and a further increase in 1994. Petroperu also forecasts a sharp increase in drilling in Peru this year. After several years of declining oil production, a gradual turnaround in the cash strapped country's petroleum industry is largely tied to its progress in privatization. The government last year began a campaign to privatize all state owned companies by the end of July 1995. The paper discusses forecasts by Petroperu; the contract of Occidental del Amazonas Inc.; the Petromar privatization; Great Western's contract; development of the Aguaytia gas field; and refinery contracts

  19. A 10-Year Follow-Up Study of Social Ties and Functional Health among the Old: The AGES Project.

    Science.gov (United States)

    Murata, Chiyoe; Saito, Tami; Tsuji, Taishi; Saito, Masashige; Kondo, Katsunori

    2017-07-03

    In Asian nations, family ties are considered important. However, it is not clear what happens among older people with no such ties. To investigate the association, we used longitudinal data from the Aichi Gerontological Evaluation Study (AGES) project. Functionally independent older people at baseline ( N = 14,088) in 10 municipalities were followed from 2003 to 2013. Social ties were assessed by asking about their social support exchange with family, relatives, friends, or neighbors. Cox proportional hazard models were employed to investigate the association between social ties and the onset of functional disability adjusting for age, health status, and living arrangement. We found that social ties with co-residing family members, and those with friends or neighbors, independently protected functional health with hazard ratios of 0.81 and 0.85 among men. Among women, ties with friend or neighbors had a stronger effect on health compared to their male counterparts with a hazard ratio of 0.89. The fact that social ties with friends or neighbors are associated with a lower risk of functional decline, independent of family support, serves to underscore the importance of promoting social ties, especially among those lacking family ties.

  20. Family caregivers' involvement in caring for a hospitalized patient with cancer and their quality of life in a country with strong family bonds.

    Science.gov (United States)

    Effendy, Christantie; Vernooij-Dassen, Myrra; Setiyarini, Sri; Kristanti, Martina Sinta; Tejawinata, Sunaryadi; Vissers, Kris; Engels, Yvonne

    2015-05-01

    Being involved in caring for family members during illness is part of the Indonesian culture, even during hospitalization. It is unknown which factors influence the quality of life (QoL) of family members taking care of their loved ones. The present study aims to identify factors influencing the QoL of family caregivers of hospitalized patients with cancer in Indonesia. A cross-sectional survey was performed. Data were collected in a general hospital in Yogyakarta from September to December 2011. Family caregivers of patients with cancer were invited to participate. Regression analysis was used to determine which aspects of caring and which demographic characteristics influenced their QoL. The Caregiver QoL Index-Cancer questionnaire was used to measure the QoL. One hundred of 120 invited caregivers (83%) completed the questionnaire. Being involved in psychological issues in caring (β = 0.374; p = 0.000), younger age (β = -0.282; p = 0.003), no previous caring experience (β = -0.301; p = 0.001), and not being the spouse (β = -0.228; p = 0.015) negatively influenced the QoL and explained 31% of the variation (adjusted R(2)  = 0.312; F = 12.24; p = 0.000). Gender, education level, and time spent on caring did not influence the QoL of family caregivers. Our findings identified modifiable factors such as dealing with psychological issues and lack of experience in caring that negatively influenced the QoL of family caregivers. These factors are potential targets for intervention strategies. Education and intervention programs focusing on dealing with psychological problems in cancer care might improve the QoL of both patients and their families. Copyright © 2014 John Wiley & Sons, Ltd.

  1. Strong Families, Tidy Houses, and Children's Values in Adult Life: Are "Chaotic", "Crowded" and "Unstable" Homes Really so Bad?

    Science.gov (United States)

    Flouri, Eirini

    2009-01-01

    Chaotic home systems have been linked with children's adverse psychological and academic outcomes. But, as they represent a departure from the suburban ideal of space, order, and family cohesiveness and stability, they should also be linked with low support for survival values. Using longitudinal data from the 1970 British Cohort Study (BCS70)…

  2. Four- year thyroidectomy procedures: Ligasure Vs. clamp & tie

    Directory of Open Access Journals (Sweden)

    Pazoki AR

    2010-01-01

    Full Text Available "n Normal 0 false false false EN-US X-NONE AR-SA MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi;} Background: The electrothermal bipolar vessel sealing system is an adjunct to the hemostatic technique, which has been successfully used in many abdominal operation, recently made available to thyroid surgery. The purpose of this was compare the outcomes of new hemostatic technique with traditional method of clamp and tie."n"nMethods: In this retrospective cross-sectional study has been done in surgery's wards of Milad & Rasul- Akram hospitals in Tehran, Iran. During three- year period between 2005-2008 all patients with different kind of pathology that need operation were assessed. Time duration of surgery and hospital stay and post surgery complication in two group, ligasure (n=45 and clamp & tie (n=145 were compared with each others."n"nResults: No difference was seen between two groups in time duration of surgery. Significant difference was seen in hospital stay and complications of surgery. Time of operation in Ligasure group was 132/22 minute and in clamp and tie group was 130/10 minute. There was found significant difference in duration of hospital stay and postoperative complication. Hypocalcemia were seen in two and 24 cases in Ligasure and Clamp & Tie group, respectively (p<0.05. Hospital stay was 2

  3. Dealing with symptoms and issues of hospitalized patients with cancer in indonesia: the role of families, nurses, and physicians

    NARCIS (Netherlands)

    Effendy, C.; Vissers, K.; Tejawinata, S.; Vernooij-Dassen, M.; Engels, Y.M.

    2015-01-01

    OBJECTIVE: Patients with cancer often face physical, psychological, social, spiritual, and emotional symptoms. Our aim was to study symptoms and issues of hospitalized patients with cancer in Indonesia, a country with strong family ties, and how family members, nurses, and physicians deal with them.

  4. Ambivalent versus Problematic Social Ties: Implications for Psychological Health, Functional Health, and Interpersonal Coping

    Science.gov (United States)

    Rook, Karen S.; Luong, Gloria; Sorkin, Dara H.; Newsom, Jason T.; Krause, Neal

    2013-01-01

    Older adults often seek to manage their social networks to foster positive interactions, but they nonetheless sometimes experience negative interactions that detract from their health and well-being. Negative interactions may occur with ambivalent social partners (i.e., partners involved in both positive and negative exchanges) or exclusively problematic social partners (i.e., partners involved negative exchanges only), but conflicting views exist in the literature regarding which type of social partner is likely to be more detrimental to older adults’ physical and emotional health. This study examined the implications of the two kinds of network members for physical and psychological health and interpersonal coping responses in a representative sample of 916 older adults. Within this elderly sample, older age was associated with fewer ambivalent kin ties and fewer exclusively problematic kin ties. Analyses revealed that ambivalent social ties were more strongly related to functional health limitations than were exclusively problematic social ties, whereas problematic ties were more consistently related to psychological health than were ambivalent ties. Furthermore, negative exchanges that occurred with exclusively problematic social ties, as compared to those that occurred with ambivalent social ties, were associated with more avoidant and fewer conciliatory coping responses, stronger and longer-lasting negative emotions, and lower perceived coping effectiveness. A comprehensive understanding of the significance of social network ties in older adults’ lives may benefit not only from attention to sources of social support but also from efforts to distinguish between different sources of conflict and disappointment. PMID:22775360

  5. Unto the third generation: evidence for strong familial aggregation of physicians, psychologists, and psychotherapists among first-year medical and psychology students in a nationwide Austrian cohort census.

    Science.gov (United States)

    Tran, Ulrich S; Berger, Nina; Arendasy, Martin E; Greitemeyer, Tobias; Himmelbauer, Monika; Hutzler, Florian; Kraft, Hans-Georg; Oettl, Karl; Papousek, Ilona; Vitouch, Oliver; Voracek, Martin

    2017-05-03

    Medical students present higher numbers of physician relatives than expectable from the total population prevalence of physicians. Evidence for such a familial aggregation effect of physicians has emerged in investigations from the Anglo-American, Scandinavian, and German-speaking areas. In particular, past data from Austria suggest a familial aggregation of the medical, as well as of the psychological and psychotherapeutic, professions among medical and psychology undergraduates alike. Here, we extend prior related studies by examining (1) the extent to which familial aggregation effects apply to the whole nation-wide student census of all relevant (eight) public universities in Austria; (2) whether effects are comparable for medical and psychology students; (3) and whether these effects generalize to relatives of three interrelated health professions (medicine, psychology, and psychotherapy). We investigated the familial aggregation of physicians, psychologists, and psychotherapists, based on an entire cohort census of first-year medical and psychology students (n = 881 and 920) in Austria with generalized linear mixed models. For both disciplines, we found strong familial aggregation of physicians, psychologists, and psychotherapists. As compared with previous results, directionally opposite time trends within disciplines emerged: familial aggregation of physicians among medical students has decreased, whilst familial aggregation of psychologists among psychology students has increased. Further, there were sex-of-relative effects (i.e., more male than female physician relatives), but no substantial sex-of-student effects (i.e., male and female students overall reported similar numbers of relatives for all three professions of interest). In addition, there were age-benefit effects, i.e., students with a relative in the medical or the psychotherapeutic profession were younger than students without, thus suggesting earlier career decisions. The familial

  6. Social Ties for Labor Market Access

    DEFF Research Database (Denmark)

    Dorner, Matthias; Harhoff, Dietmar; Hinz, Tina

    in the German labor market after reunification. Modeling inventor migration to West German regions after 1990, we find that Western regions with stronger historically determined social ties across the former East-West border attracted more inventors after the fall of the Iron Curtain than regions without......We study the impact of social ties on the migration of inventors from East to West Germany, using the fall of the Iron Curtain and German reunification as a natural experiment. We identify East German inventors via their patenting track records prior to 1990 and their social security records...... such ties. However, mobility decisions made by inventors with outstanding patenting track records (star inventors) were not impacted by social ties. We conclude that social ties support labor market access for migrant inventors and determine regional choices while dependence on these ties is substantially...

  7. Hanging Together, Together Hung? Career Implications of Interpersonal Ties Between CEOs and Top Managers

    Directory of Open Access Journals (Sweden)

    Stefan Hilger

    2013-05-01

    Full Text Available Is it good or bad for senior executives to have strong interpersonal ties to the CEO? We argue that a strong relationship with the CEO raises the likelihood that a top manager stays in office or makes an upward career move when the CEO leaves office voluntarily. At the same time, such interpersonal ties also reinforce the negative spillover effects of a dismissal of the CEO on the career prospects of the manager concerned. Our empirical analysis lends support to both arguments. We contribute to managerial succession research by underlining the ambivalence of interpersonal ties within top management teams.

  8. The emotional responses of browsing Facebook: Happiness, envy, and the role of tie strength.

    Science.gov (United States)

    Lin, Ruoyun; Utz, Sonja

    2015-11-01

    On Facebook, users are exposed to posts from both strong and weak ties. Even though several studies have examined the emotional consequences of using Facebook, less attention has been paid to the role of tie strength. This paper aims to explore the emotional outcomes of reading a post on Facebook and examine the role of tie strength in predicting happiness and envy. Two studies - one correlational, based on a sample of 207 American participants and the other experimental, based on a sample of 194 German participants - were conducted in 2014. In Study 2, envy was further distinguished into benign and malicious envy. Based on a multi-method approach, the results showed that positive emotions are more prevalent than negative emotions while browsing Facebook. Moreover, tie strength is positively associated with the feeling of happiness and benign envy, whereas malicious envy is independent of tie strength after reading a (positive) post on Facebook.

  9. [Neonatal tongue-tie: myths and science].

    Science.gov (United States)

    Dollberg, Shaul; Botzer, Eyal

    2011-01-01

    Anatomical restraining of tongue movement (tongue-tie, ankyloglossia) has been known for centuries and the subject of dozens of articles. The heated debate persists on its clinical significance and indications for treatment. Most authorities in the field of infant feeding and Lactation agree that breastfeeding problems, such as nipple pain and latching difficulties, are common signs of clinicaLly significant tongue-tie and indications for performing a frenotomy, while the sole presence of a visible lingual frenulum is not. In contrast, the lack of a visible frenulum does not rule out the diagnosis of clinically significant tongue-tie since submucosal ties, also called "posterior tongue-tie", may interfere with efficient breastfeeding. Whether tongue-tie interferes with speech articulation to a significant extent is currently unknown. Theoretically, articulation of some consonants (e.g., /s/, /th/, /r/) would be affected by impeded tongue movement. These articulation problems are, however, Less common than tongue-tie itself, and children and adults characteristically use various compensatory techniques of mouth opening and tongue movements. When it is indicated, frenotomy is performed by lifting the tongue and snipping the frenulum with scissors. Complications of frenotomy are rare and consist mainly of self-limited minor bleeding. The significance of posterior tongue tie and the long-term effects of frenotomy performed during early infancy are unresolved issues.

  10. “Strength of Weak Ties,” Neighborhood Ethnic Heterogeneity, and Depressive Symptoms among Adults: A Multilevel Analysis of Korean General Social Survey (KGSS 2012

    Directory of Open Access Journals (Sweden)

    Harris Hyun-soo Kim

    2017-06-01

    Full Text Available A substantial body of research, based largely on North American and European contexts, demonstrates that social networks play a critical role in protecting and promoting mental, as well as physical, health. The purpose of this study is to examine how “weak” and “strong” network relations are differentially related to individual mental health (depressive symptoms based on a nationally representative sample of South Korean adults. Using multilevel analysis, the current research also investigates the extent to which contextual or neighborhood-level factors moderate the associations between depression and social network. Findings show that regular interaction with weaker ties (acquaintances, neighbors, coworkers, etc. are associated with better mental health. The number of strong ties (family members and friends, on the other hand, is not a significant predictor of psychological distress. In addition, a cross-level interaction term is observed: The negative relationship between weak ties and depressive symptoms is diminished in neighborhoods with more foreign-born residents or immigrants. General implications beyond the empirical case under investigation are discussed, as to why weak ties can be “strong” in relation to mental health and how this phenomenon can vary according to residential characteristics such as ethnic heterogeneity.

  11. Analyzing negative ties in social networks

    Directory of Open Access Journals (Sweden)

    Mankirat Kaur

    2016-03-01

    Full Text Available Online social networks are a source of sharing information and maintaining personal contacts with other people through social interactions and thus forming virtual communities online. Social networks are crowded with positive and negative relations. Positive relations are formed by support, endorsement and friendship and thus, create a network of well-connected users whereas negative relations are a result of opposition, distrust and avoidance creating disconnected networks. Due to increase in illegal activities such as masquerading, conspiring and creating fake profiles on online social networks, exploring and analyzing these negative activities becomes the need of hour. Usually negative ties are treated in same way as positive ties in many theories such as balance theory and blockmodeling analysis. But the standard concepts of social network analysis do not yield same results in respect of each tie. This paper presents a survey on analyzing negative ties in social networks through various types of network analysis techniques that are used for examining ties such as status, centrality and power measures. Due to the difference in characteristics of flow in positive and negative tie networks some of these measures are not applicable on negative ties. This paper also discusses new methods that have been developed specifically for analyzing negative ties such as negative degree, and h∗ measure along with the measures based on mixture of positive and negative ties. The different types of social network analysis approaches have been reviewed and compared to determine the best approach that can appropriately identify the negative ties in online networks. It has been analyzed that only few measures such as Degree and PN centrality are applicable for identifying outsiders in network. For applicability in online networks, the performance of PN measure needs to be verified and further, new measures should be developed based upon negative clique concept.

  12. Sister-to-sister oocyte donation: couples’ experiences with regard to genetic ties

    OpenAIRE

    WYVERKENS, ELIA; Van Parys, Hanna; Provoost, Veerle; Pennings, Guido; De Sutter, Petra; Buysse, Ann

    2016-01-01

    Objective: This study aimed to gain an in-depth understanding of the experiences of genetic ties in intrafamily oocyte donation families. Background: Previous research has shown that most mothers have a good and stable relationship with their donor. Little is known about the meaning of the difference in genetic ties for parents who conceived through sister-to-sister oocyte donation. Methods: An Interpretative Phenomenological Analysis was performed and focused on both individual experie...

  13. The emergence of cooperation in tie strength models

    International Nuclear Information System (INIS)

    Xu, Bo; Yue, Yunpeng

    2016-01-01

    In this paper, we propose a tie strength model to explain the emergence of cooperation in spatial prisoner's dilemma games, assuming that cooperators preferentially allocate their investments to friends with strong ties. Two types of prisoner's dilemma models are examined in this study: the traditional two-strategy model considering only cooperators and defectors; the expanded three-strategy model consisting cooperators, defectors and extortioners. The results show that tie strength model contributes to the promotion of cooperation in both types of prisoner's dilemma games. However, we point out that the influence of the investment preference is quite different in the two prisoner's dilemma game settings. In the two-strategy prisoner's dilemma game, only small preference contributes to the promotion of cooperation. Once this preference exceeds a critical value, cooperation will be prohibited. We explain this phenomenon by arguing that extremely strong investment preference undermines the ability of cooperative clusters to resist defectors. Moreover, we extend the analysis into the three-strategy case and discover that the catalytic effect of extortioners can eliminate this first up and then down trend in the two-strategy model. The equilibrium fraction of cooperators is always positively correlated to the level of investment preference in three-strategy models.

  14. The Strength of the Strongest Ties in Collaborative Problem Solving

    DEFF Research Database (Denmark)

    de Montjoye, Yves-Alexandre; Stopczynski, Arkadiusz; Shmueli, Erez

    2014-01-01

    Complex problem solving in science, engineering, and business has become a highly collaborative endeavor. Teams of scientists or engineers collaborate on projects using their social networks to gather new ideas and feedback. Here we bridge the literature on team performance and information networks...... by studying teams' problem solving abilities as a function of both their within-team networks and their members' extended networks. We show that, while an assigned team's performance is strongly correlated with its networks of expressive and instrumental ties, only the strongest ties in both networks have......-significant in the statistical analysis. Our results have consequences for the organization of teams of scientists, engineers, and other knowledge workers tackling today's most complex problems....

  15. Quasinormal Modes and Strong Cosmic Censorship

    Science.gov (United States)

    Cardoso, Vitor; Costa, João L.; Destounis, Kyriakos; Hintz, Peter; Jansen, Aron

    2018-01-01

    The fate of Cauchy horizons, such as those found inside charged black holes, is intrinsically connected to the decay of small perturbations exterior to the event horizon. As such, the validity of the strong cosmic censorship (SCC) conjecture is tied to how effectively the exterior damps fluctuations. Here, we study massless scalar fields in the exterior of Reissner-Nordström-de Sitter black holes. Their decay rates are governed by quasinormal modes of the black hole. We identify three families of modes in these spacetimes: one directly linked to the photon sphere, well described by standard WKB-type tools; another family whose existence and time scale is closely related to the de Sitter horizon; finally, a third family which dominates for near-extremally charged black holes and which is also present in asymptotically flat spacetimes. The last two families of modes seem to have gone unnoticed in the literature. We give a detailed description of linear scalar perturbations of such black holes, and conjecture that SCC is violated in the near extremal regime.

  16. Tongue tie: the evidence for frenotomy.

    Science.gov (United States)

    Brookes, Alastair; Bowley, Douglas M

    2014-11-01

    Tongue tie or ankyloglossia is a congenital variation characterised by a short lingual frenulum which may result in restriction of tongue movement and thus impact on function. Tongue tie division (frenotomy) in affected infants with breastfeeding problems yields objective improvements in milk production and breastfeeding characteristics, including objective scoring measures, weight gain and reductions in maternal pain. For the majority of mothers, frenotomy appears to enhance maintenance of breastfeeding. Tongue tie division is a safe procedure with minimal complications. The commonest complication is minor bleeding. Recurrence leading to redivision occurs with rates of 0.003-13% reported; this appears to be more common with posterior than anterior ties. There are limited reports indicating that prophylactic frenotomy may promote subsequent speech development; however, evidence is currently insufficient to condone this practice and further good quality research into this area is warranted. Copyright © 2014 Elsevier Ltd. All rights reserved.

  17. Construction loads experienced by plastic composite ties.

    Science.gov (United States)

    2014-07-01

    Damage to plastic composite ties during handling and track installation has been reported by a number of railroads. Results from : a survey conducted to identify specific handling issues were used to develop field and laboratory tests to measure the ...

  18. TIES for Dummies 3rd Edition (Technology Identification, Evaluation, and Selection) Basic how to's to implement the TIES method

    Science.gov (United States)

    Kirby, Michelle R.

    2002-01-01

    The TIES method is a forecasting environment whereby the decision-maker has the ability to easily assess and trade-off the impact of various technologies without sophisticated and time-consuming mathematical formulations. TIES provides a methodical approach where technically feasible alternatives can be identified with accuracy and speed to reduce design cycle time, and subsequently, life cycle costs, and was achieved through the use of various probabilistic methods, such as Response Surface Methodology and Monte Carlo Simulations. Furthermore, structured and systematic techniques are utilized from other fields to identify possible concepts and evaluation criteria by which comparisons can be made. This objective is achieved by employing the use of Morphological Matrices and Multi-Attribute Decision Making techniques. Through the execution of each step, a family of design alternatives for a given set of customer requirements can be identified and assessed subjectively or objectively. This methodology allows for more information (knowledge) to be brought into the earlier phases of the design process and will have direct implications on the affordability of the system. The increased knowledge allows for optimum allocation of company resources and quantitative justification for program decisions. Finally, the TIES method provided novel results and quantitative justification to facilitate decision making in the early stages of design so as to produce affordable and quality products.

  19. A longitudinal analysis of cross-border ties and depression for Latino adults.

    Science.gov (United States)

    Torres, Jacqueline M; Lee, Anne; González, Hector M; Garcia, Lorena; Haan, Mary N

    2016-07-01

    Recent scholarship suggests a significant association between cross-border ties, or ties maintained with family and friends in countries and communities of origin, and the mental health of immigrants and their descendants. To date, this research has been exclusively cross-sectional, precluding conclusions about a causal association between cross-border ties and mental health outcomes. In the present study we undertake a longitudinal analysis of the relationship between cross-border ties and depression measured over a ten-year period for a sample of immigrant and U.S.-born Latinos. Data are from the Sacramento Area Latino Study on Aging (1998-2008), a population-based, prospective study of Latin American-origin adults 60 years and older. We find that cross-border ties reported at baseline were significantly associated with depression in subsequent study waves, even after controlling for the presence of depression at baseline, albeit with substantial differences by gender and nativity. Specifically, communication with family and friends in Latin America and travel to Latin America at baseline were each significantly associated with greater odds of depression for immigrant women, but with lower odds of depression for U.S.-born Latina women over the study period. Travel to Latin America at baseline was significantly associated with lower odds of depression for Latino men across the study. Across all models we control for depressive symptomatology at baseline to account for the reciprocal nature of depressive symptoms and engagement with social ties, including cross-border ties. Our findings suggest that cross-border ties may represent a unique source of both resilience and risk for the long-term mental health of immigrant Latinos and their descendants. Copyright © 2016 Elsevier Ltd. All rights reserved.

  20. Analysis of ICPP fuel storage rack inner tie and corner tie substructures

    Energy Technology Data Exchange (ETDEWEB)

    Nitzel, M.E.; Rahl, R.G.

    1996-01-01

    Finite element models were developed and analyses performed for the tie plate, inner tie block assembly, and corner tie block assembly of a 25 port fuel rack assembly designed for installation in Pool 1 of Building 666 at the Idaho Chemical Processing Plant. These models were specifically developed to investigate the adequacy of certain welds joining components of the fuel storage rack assembly. The work scope for the task was limited to an investigation of the stress levels in the subject subassemblies when subjected to seismic loads. Structural acceptance criteria used for the elastic calculations performed were as found in the overall rack design report as issued by the rack`s designer, Holtec International. Structural acceptance criteria used for the plastic calculations performed as part of this effort were as defined in Subsection NF and Appendix F of the ASME Boiler & Pressure Vessel Code. The results of the analyses will also apply to the 30 port fuel storage rack design that is also scheduled for installation in Pool 1 of ICPP 666. The results obtained from the analyses performed for this task indicate that the welds joining the inner tie block and corner tie block to the surrounding rack structure meet the acceptance criteria. Further, the structural members (plates and blocks) were also found to be within the allowable stress limits established by the acceptance criteria. The separate analysis performed on the inner tie plate confirmed the structural adequacy for both the inner tie plate, corner tie plate, and tie block bolts. The analysis results verified that the inner tie and corner tie block should be capable of transferring the expected seismic load without structural failure.

  1. Analysis of ICPP fuel storage rack inner tie and corner tie substructures

    International Nuclear Information System (INIS)

    Nitzel, M.E.; Rahl, R.G.

    1996-01-01

    Finite element models were developed and analyses performed for the tie plate, inner tie block assembly, and corner tie block assembly of a 25 port fuel rack assembly designed for installation in Pool 1 of Building 666 at the Idaho Chemical Processing Plant. These models were specifically developed to investigate the adequacy of certain welds joining components of the fuel storage rack assembly. The work scope for the task was limited to an investigation of the stress levels in the subject subassemblies when subjected to seismic loads. Structural acceptance criteria used for the elastic calculations performed were as found in the overall rack design report as issued by the rack's designer, Holtec International. Structural acceptance criteria used for the plastic calculations performed as part of this effort were as defined in Subsection NF and Appendix F of the ASME Boiler ampersand Pressure Vessel Code. The results of the analyses will also apply to the 30 port fuel storage rack design that is also scheduled for installation in Pool 1 of ICPP 666. The results obtained from the analyses performed for this task indicate that the welds joining the inner tie block and corner tie block to the surrounding rack structure meet the acceptance criteria. Further, the structural members (plates and blocks) were also found to be within the allowable stress limits established by the acceptance criteria. The separate analysis performed on the inner tie plate confirmed the structural adequacy for both the inner tie plate, corner tie plate, and tie block bolts. The analysis results verified that the inner tie and corner tie block should be capable of transferring the expected seismic load without structural failure

  2. TIE: an ability test of emotional intelligence.

    Directory of Open Access Journals (Sweden)

    Magdalena Śmieja

    Full Text Available The Test of Emotional Intelligence (TIE is a new ability scale based on a theoretical model that defines emotional intelligence as a set of skills responsible for the processing of emotion-relevant information. Participants are provided with descriptions of emotional problems, and asked to indicate which emotion is most probable in a given situation, or to suggest the most appropriate action. Scoring is based on the judgments of experts: professional psychotherapists, trainers, and HR specialists. The validation study showed that the TIE is a reliable and valid test, suitable for both scientific research and individual assessment. Its internal consistency measures were as high as .88. In line with theoretical model of emotional intelligence, the results of the TIE shared about 10% of common variance with a general intelligence test, and were independent of major personality dimensions.

  3. TIE: An Ability Test of Emotional Intelligence

    Science.gov (United States)

    Śmieja, Magdalena; Orzechowski, Jarosław; Stolarski, Maciej S.

    2014-01-01

    The Test of Emotional Intelligence (TIE) is a new ability scale based on a theoretical model that defines emotional intelligence as a set of skills responsible for the processing of emotion-relevant information. Participants are provided with descriptions of emotional problems, and asked to indicate which emotion is most probable in a given situation, or to suggest the most appropriate action. Scoring is based on the judgments of experts: professional psychotherapists, trainers, and HR specialists. The validation study showed that the TIE is a reliable and valid test, suitable for both scientific research and individual assessment. Its internal consistency measures were as high as .88. In line with theoretical model of emotional intelligence, the results of the TIE shared about 10% of common variance with a general intelligence test, and were independent of major personality dimensions. PMID:25072656

  4. A comparison of plastic cable ties based on physical, chemical and stable isotopic measurements.

    Science.gov (United States)

    Nienaber, Lisa M; Cresswell, Sarah L; Carter, James F; Peter, Tony

    2018-01-01

    originated from the same manufacturing batch. The authors reason that a likelihood ratio (that might be presented to a Court of law) can be derived from this type of discrete data based on a calculation of the possible combinations of distinguishable objects (unordered sampling with replacement) in a convenience sample collected from the background population. In this example, a database of 19 distinguishable objects can yield a likelihood ratio as high as 210, with a verbal equivalent of "moderately strong support" for a proposition that two cable ties have the same isotopic composition because they originate from the same batch rather than by random chance. Crown Copyright © 2017. Published by Elsevier B.V. All rights reserved.

  5. The Orphan Receptor Tie1 Controls Angiogenesis and Vascular Remodeling by Differentially Regulating Tie2 in Tip and Stalk Cells

    Directory of Open Access Journals (Sweden)

    Soniya Savant

    2015-09-01

    Full Text Available Tie1 is a mechanistically poorly characterized endothelial cell (EC-specific orphan receptor. Yet, Tie1 deletion is embryonic lethal and Tie1 has been implicated in critical vascular pathologies, including atherosclerosis and tumor angiogenesis. Here, we show that Tie1 does not function independently but exerts context-dependent effects on the related receptor Tie2. Tie1 was identified as an EC activation marker that is expressed during angiogenesis by a subset of angiogenic tip and remodeling stalk cells and downregulated in the adult quiescent vasculature. Functionally, Tie1 expression by angiogenic EC contributes to shaping the tip cell phenotype by negatively regulating Tie2 surface presentation. In contrast, Tie1 acts in remodeling stalk cells cooperatively to sustain Tie2 signaling. Collectively, our data support an interactive model of Tie1 and Tie2 function, in which dynamically regulated Tie1 versus Tie2 expression determines the net positive or negative effect of Tie1 on Tie2 signaling.

  6. Psychological trauma symptoms and Type 2 diabetes prevalence, glucose control, and treatment modality among American Indians in the Strong Heart Family Study.

    Science.gov (United States)

    Jacob, Michelle M; Gonzales, Kelly L; Calhoun, Darren; Beals, Janette; Muller, Clemma Jacobsen; Goldberg, Jack; Nelson, Lonnie; Welty, Thomas K; Howard, Barbara V

    2013-01-01

    The aims of this paper are to examine the relationship between psychological trauma symptoms and Type 2 diabetes prevalence, glucose control, and treatment modality among 3776 American Indians in Phase V of the Strong Heart Family Study. This cross-sectional analysis measured psychological trauma symptoms using the National Anxiety Disorder Screening Day instrument, diabetes by American Diabetes Association criteria, and treatment modality by four categories: no medication, oral medication only, insulin only, or both oral medication and insulin. We used binary logistic regression to evaluate the association between psychological trauma symptoms and diabetes prevalence. We used ordinary least squares regression to evaluate the association between psychological trauma symptoms and glucose control. We used binary logistic regression to model the association of psychological trauma symptoms with treatment modality. Neither diabetes prevalence (22%-31%; p=0.19) nor control (8.0-8.6; p=0.25) varied significantly by psychological trauma symptoms categories. However, diabetes treatment modality was associated with psychological trauma symptoms categories, as people with greater burden used either no medication, or both oral and insulin medications (odds ratio=3.1, ppsychological trauma symptoms suggests future research investigate patient and provider treatment decision making. © 2013.

  7. Mobile devices and weak ties: a study of vision impairments and workplace access in Bangalore.

    Science.gov (United States)

    Pal, Joyojeet; Lakshmanan, Meera

    2015-07-01

    To explore ways in which social and economic interactions are changed by access to mobile telephony. This is a mixed-methods study of mobile phone use among 52 urban professionals with vision impairments in Bangalore, India. Interviews and survey results indicated that mobile devices, specifically those with adaptive technology software, play a vital role as multi-purpose devices that enable people with disabilities to navigate economically and socially in an environment where accessibility remains a significant challenge. We found that mobile devices play a central role in enabling and sustaining weak ties, but also that these weak ties have important gender-specific implications. We found that women have less access to weak ties than men, which impacts women's access to assistive technology (AT). This has potential implications for women's sense of safety and independence, both of which are strongly related to AT access. Implications for Rehabilitation Adaptive technologies increase individuals' ability to keep in contact with casual connections or weak ties through phone calls or social media. Men tend to have stronger access to weak ties than women in India due to cultural impediments to independent access to public spaces. Weak ties are an important source of assistive technology (AT) due to the high rate of resale of used AT, typically through informal networks.

  8. Commercial lumber, round timbers, and ties

    Science.gov (United States)

    David E. Kretschmann

    2010-01-01

    When sawn, a log yields round timber, ties, or lumber of varying quality. This chapter presents a general discussion of grading, standards, and specifications for these commercial products. In a broad sense, commercial lumber is any lumber that is bought or sold in the normal channels of commerce. Commercial lumber may be found in a variety of forms, species, and types...

  9. Weizmann ties with Cambridge in physics contest

    CERN Multimedia

    Siegel, J

    2004-01-01

    "Scientists and students from the Weizmann Institute of Science in Rehovot and Cambridge University in England have tied for first place in a physics competition aimed at simulating the future functioning of the particle accelerator being built at the European center CERN and due to open in 2007" (1/2 page)

  10. Chemical topology: Tying up some loose ends

    Science.gov (United States)

    Fenlon, Edward E.

    2010-03-01

    A linear molecule containing three bipyridine ligands can be wrapped around a single metal-ion template to form an open-knot complex. The loose ends of the knot can be 'tied' together through esterification or olefin-metathesis reactions to form closed knots that do not unravel when the metal template is removed.

  11. COMMITMENT A Psychological Tie and Moral Value

    Science.gov (United States)

    2017-04-01

    AIR WAR COLLEGE AIR UNIVERSITY COMMITMENT A Psychological Tie and Moral Value by Shelly L. Mendieta, Lieutenant Colonel, United...there are also psychological and behavioral aspects to commitment. The Meyers and Allen three- component model of organizational commitment...Eight readings are offered as a foundation of the psychological , philosophical, and ethical literature as well as distinguish the concept of

  12. Rethinking Family Power.

    Science.gov (United States)

    Kranichfeld, Marion L.

    1987-01-01

    Men's power is emphasized in the family power literature on marital decision making. Little attention has been paid to women's power, accrued through their deeper embeddedness in intrafamilial roles. Micro-level analysis of family power demonstrates that women's positions in the family power structure rest not on the horizontal marital tie but…

  13. Freeze-thaw performance testing of whole concrete railroad ties.

    Science.gov (United States)

    2013-10-01

    Freezing and thawing durability tests of prestressed concrete ties are normally performed according to ASTM C666 specifications. Small specimens are cut from the shoulders of concrete ties and tested through 300 cycles of freezing and thawing. Saw-cu...

  14. Performance evaluation of concrete railroad ties on the northeast corridor.

    Science.gov (United States)

    2014-03-01

    Simpson Gumpertz & Heger Inc. conducted an investigation into the factors that caused widespread failure in prestressed concrete : railroad ties on the Northeast Corridor. The problem was apparent in ties manufactured and installed circa 19941998....

  15. The centrality of social ties to climate migration and mental health

    Directory of Open Access Journals (Sweden)

    Jacqueline M. Torres

    2017-07-01

    Full Text Available Abstract Climate change-related hazards and disasters, known to adversely impact physical and mental health outcomes, are also expected to result in human migration above current levels. Environmentally-motivated migration and displacement may lead to the disruption of existing social ties, with potentially adverse consequences for mobile populations as well as their family members who remain in places of origin. We propose that the disruption of social ties is a key mechanism by which climate-related migration may negatively impact mental health, in particular. Existing social ties may provide social and material resources that buffer mental health stressors related to both prolonged and acute climate events. Preparation for such events may also strengthen these same ties and protect mental health. Communities may leverage social ties, first to mitigate climate change, and second, to adapt and rebuild post-disaster in communities of origin. Additionally, social ties can inform migration decisions and destinations. For example, scholars have found that the drought-motivated adaptive migration of West African Fulbe herders only occurred because of the long-term development of social networks between migrants and non-migrants through trade and seasonal grazing. On the other hand, social ties do not always benefit mental health. Some migrants, including those from poor regions or communities with no formal safety net, may face considerable burden to provide financial and emotional resources to family members who remain in countries of origin. In destination communities, migrants often face significant social marginalization. Therefore, policies and programs that aim to maintain ongoing social ties among migrants and their family and community members may be critically important in efforts to enhance population resilience and adaptation to climate change and to improve mental health outcomes. Several online platforms, like Refugee Start Force

  16. The centrality of social ties to climate migration and mental health.

    Science.gov (United States)

    Torres, Jacqueline M; Casey, Joan A

    2017-07-06

    Climate change-related hazards and disasters, known to adversely impact physical and mental health outcomes, are also expected to result in human migration above current levels. Environmentally-motivated migration and displacement may lead to the disruption of existing social ties, with potentially adverse consequences for mobile populations as well as their family members who remain in places of origin. We propose that the disruption of social ties is a key mechanism by which climate-related migration may negatively impact mental health, in particular. Existing social ties may provide social and material resources that buffer mental health stressors related to both prolonged and acute climate events. Preparation for such events may also strengthen these same ties and protect mental health. Communities may leverage social ties, first to mitigate climate change, and second, to adapt and rebuild post-disaster in communities of origin. Additionally, social ties can inform migration decisions and destinations. For example, scholars have found that the drought-motivated adaptive migration of West African Fulbe herders only occurred because of the long-term development of social networks between migrants and non-migrants through trade and seasonal grazing. On the other hand, social ties do not always benefit mental health. Some migrants, including those from poor regions or communities with no formal safety net, may face considerable burden to provide financial and emotional resources to family members who remain in countries of origin. In destination communities, migrants often face significant social marginalization. Therefore, policies and programs that aim to maintain ongoing social ties among migrants and their family and community members may be critically important in efforts to enhance population resilience and adaptation to climate change and to improve mental health outcomes. Several online platforms, like Refugee Start Force, serve to integrate refugees by

  17. Grid-Tied Photovoltaic Power System

    Science.gov (United States)

    Eichenberg, Dennis J.

    2011-01-01

    A grid-tied photovoltaic (PV) power system is connected directly to the utility distribution grid. Facility power can be obtained from the utility system as normal. The PV system is synchronized with the utility system to provide power for the facility, and excess power is provided to the utility. Operating costs of a PV power system are low compared to conventional power technologies. This method can displace the highest-cost electricity during times of peak demand in most climatic regions, and thus reduce grid loading. Net metering is often used, in which independent power producers such as PV power systems are connected to the utility grid via the customers main service panels and meters. When the PV power system is generating more power than required at that location, the excess power is provided to the utility grid. The customer pays the net of the power purchased when the on-site power demand is greater than the onsite power production, and the excess power is returned to the utility grid. Power generated by the PV system reduces utility demand, and the surplus power aids the community. Modern PV panels are readily available, reliable, efficient, and economical, with a life expectancy of at least 25 years. Modern electronics have been the enabling technology behind grid-tied power systems, making them safe, reliable, efficient, and economical with a life expectancy equal to the modern PV panels. The grid-tied PV power system was successfully designed and developed, and this served to validate the basic principles developed, and the theoretical work that was performed. Grid-tied PV power systems are reliable, maintenance- free, long-life power systems, and are of significant value to NASA and the community. Of particular value are the analytical tools and capabilities that have been successfully developed. Performance predictions can be made confidently for grid-tied PV systems of various scales. The work was done under the NASA Hybrid Power Management (HPM

  18. Accuracy of self-reported family history is strongly influenced by the accuracy of self-reported personal health status of relatives

    NARCIS (Netherlands)

    Janssens, A.C.J.W.; Henneman, L.; Detmar, S.B.; Khoury, M.J.; Steyerberg, E.W.; Eijkemans, M.J.C.; Mushkudiani, N.; Oostra, B.A.; Duijn, C.M. van; MacKenbach, J.P.

    2012-01-01

    Objective: We investigated the accuracy of self-reported family history for diabetes, hypertension, and overweight against two reference standards: family history based on physician-assessed health status of relatives and on self-reported personal health status of relatives. Study Design and

  19. The effect of plasma flow on line-tied magnetohydrodynamic modes

    International Nuclear Information System (INIS)

    Arcudi, Francesco; Delzanno, Gian Luca; Finn, John M.

    2010-01-01

    The linear stability of a linear pinch to kink modes with line-tying boundary conditions and equilibrium axial flow is studied. Numerical results in visco-resistive magnetohydrodynamics show that for long plasmas, in which the line-tying stabilization effect is weak, plasma flow is stabilizing. For shorter plasmas, near the length at which line-tying stabilizes the mode for zero flow, the flow can be destabilizing. A simple model using reduced ideal magnetohydrodynamics with a step-function current density and an even simpler one-dimensional sound wave model with equilibrium flow elucidate these effects. It is concluded that: (1) The stabilization in long plasmas is due to convective stabilization; (2) the destabilization for short plasmas can be explained using a picture involving the coupling of two stable waves, one propagating in the forward direction and one in the backward direction; and (3) strong magnetic shear suppresses the flow destabilization for short plasmas.

  20. The Strength of Weak Ties in MBA Job Search: A Within–Person Test

    Directory of Open Access Journals (Sweden)

    Jason Greenberg

    2016-05-01

    Full Text Available Whether and how social ties create value has inspired substantial research in organizational theory, sociology, and economics. Scholars generally believe that social ties impact labor market outcomes. Two explanatory mechanisms have been identified, emphasizing access to better job offers in pecuniary terms and the efficacy of non-redundant information. The evidence informing each theory, however, has been inconsistent and circumstantial. We test predictions from both models using a rich set of job search data collected from an MBA student population, including detailed information about search channels and characteristics of job offers. Importantly, we can compare offers made to the same student derived via different search channels while accounting for industry, function, and non-pecuniary characteristics. We find that contrary to conventional wisdom, search through social networks typically results in job offers with lower total compensation (-17 percent for referrals through strong ties and -16 percent for referrals via weak ties vs. formal search. However, our models also show that students are considerably more likely to accept offers derived via weak ties. They do so because they are perceived to have greater growth potential and other non-pecuniary value. On balance, our tests are consistent with Granovetter’s argument that networks provide value by facilitating access to information that is otherwise difficult to obtain, rather than providing greater pecuniary compensation.

  1. Unto the third generation: evidence for strong familial aggregation of physicians, psychologists, and psychotherapists among first-year medical and psychology students in a nationwide Austrian cohort census

    OpenAIRE

    Tran, Ulrich S.; Berger, Nina; Arendasy, Martin E.; Greitemeyer, Tobias; Himmelbauer, Monika; Hutzler, Florian; Kraft, Hans-Georg; Oettl, Karl; Papousek, Ilona; Vitouch, Oliver; Voracek, Martin

    2017-01-01

    Background Medical students present higher numbers of physician relatives than expectable from the total population prevalence of physicians. Evidence for such a familial aggregation effect of physicians has emerged in investigations from the Anglo-American, Scandinavian, and German-speaking areas. In particular, past data from Austria suggest a familial aggregation of the medical, as well as of the psychological and psychotherapeutic, professions among medical and psychology undergraduates a...

  2. Strong Cosmic Censorship

    Science.gov (United States)

    Isenberg, James

    2017-01-01

    The Hawking-Penrose theorems tell us that solutions of Einstein's equations are generally singular, in the sense of the incompleteness of causal geodesics (the paths of physical observers). These singularities might be marked by the blowup of curvature and therefore crushing tidal forces, or by the breakdown of physical determinism. Penrose has conjectured (in his `Strong Cosmic Censorship Conjecture`) that it is generically unbounded curvature that causes singularities, rather than causal breakdown. The verification that ``AVTD behavior'' (marked by the domination of time derivatives over space derivatives) is generically present in a family of solutions has proven to be a useful tool for studying model versions of Strong Cosmic Censorship in that family. I discuss some of the history of Strong Cosmic Censorship, and then discuss what is known about AVTD behavior and Strong Cosmic Censorship in families of solutions defined by varying degrees of isometry, and discuss recent results which we believe will extend this knowledge and provide new support for Strong Cosmic Censorship. I also comment on some of the recent work on ``Weak Null Singularities'', and how this relates to Strong Cosmic Censorship.

  3. Vínculos organizacionais Organizational ties

    Directory of Open Access Journals (Sweden)

    Gustavo Garcez Kramer

    2007-02-01

    Full Text Available Este artigo é um estudo de caso único, realizado junto a uma organização pública municipal de Curitiba, e tem como objetivo investigar e compreender os vínculos organizacionais. O estudo dos vínculos é feito por meio dos seus elementos constitutivos: a identificação, o sentimento de pertença, a cooperação, a participação, a criação de inimigos, a idealização, o reconhecimento e valorização dos indivíduos, a solidariedade, a integração, o crescimento e desenvolvimento pessoal e profissional e a autonomia. Foram utilizados, como instrumentos de coleta, questionário fechado e análise documental. O resultado dessa pesquisa é a caracterização dos elementos que são importantes na formação e manutenção dos vínculos e, conseqüentemente, para o comprometimento dos empregados com os objetivos, políticas, problemas, desempenho e resultados da organização.This article presents a unique case study of the organizational ties in a public municipal organization in the city of Curitiba, Brazil. The ties are studied through their constitutive elements: identification, sense of belonging, cooperation, participation, creation of enemies, idealization, recognition and appreciation of individuals, solidarity, integration, professional and personal development and growth, and autonomy. Documental analysis and closed questionnaires were used for data collection. The research resulted in the characterization of the elements that are important in making and keeping ties, and consequently committing employees to the organization's objectives, policies, problems, performance and results.

  4. Neighborhoods and Intimate Partner Violence Against Women: The Direct and Interactive Effects of Social Ties and Collective Efficacy.

    Science.gov (United States)

    Wright, Emily M; Skubak Tillyer, Marie

    2017-06-01

    This study examines the impact of several indicators of neighborhood social ties (e.g., residents' interactions with each other; residents' ability to recognize outsiders) on intimate partner violence (IPV) against women as well as whether neighborhood collective efficacy's impact on IPV is contingent upon such ties. This study used data from 4,151 women (46% Latina, 33% African American, 17% Caucasian, on average 32 years old) in 80 neighborhoods from the Project on Human Development in Chicago Neighborhoods. We estimated a series of random effects hierarchical Bernoulli models to assess the main and interactive effects of neighborhood social ties and collective efficacy on minor and severe forms of IPV against women. Results indicate that certain neighborhood social ties are associated with higher rates of minor forms of IPV against women (but not severe forms of IPV), and collective efficacy does not appear to influence IPV against women, regardless of the level of individual or neighborhood social ties. Unlike street crime, collective efficacy does not significantly reduce IPV against women, even in neighborhoods with strong social ties that may facilitate awareness of the violence. In fact, perpetrators of minor IPV may enjoy some protective benefit in communities with social ties that make neighbors hesitant to intervene in what some might perceive as "private matters."

  5. The Running Barbed Tie-over Dressing.

    Science.gov (United States)

    Joyce, Cormac W; Joyce, Kenneth M; Kennedy, Ann-Marie; Kelly, Jack L

    2014-04-01

    Barbed suture technology is becoming increasingly popular in plastic surgery and is now being used in body contouring surgery and facial rejuvenation. We describe the novel application of a barbed suture as a running tie-over dressing for skin grafts. The barbs act as anchors in the skin, so constant tensioning of the suture is not required. The bidirectional nature of the suture prevents any slippage, and the barbs even act as a grip on the underlying wool dressing. Furthermore, the method described is both quick and simple to learn and would be useful for the sole operator.

  6. The Running Barbed Tie-over Dressing

    Directory of Open Access Journals (Sweden)

    Cormac W. Joyce, MB, BCh, MRCSI

    2014-04-01

    Full Text Available Summary: Barbed suture technology is becoming increasingly popular in plastic surgery and is now being used in body contouring surgery and facial rejuvenation. We describe the novel application of a barbed suture as a running tie-over dressing for skin grafts. The barbs act as anchors in the skin, so constant tensioning of the suture is not required. The bidirectional nature of the suture prevents any slippage, and the barbs even act as a grip on the underlying wool dressing. Furthermore, the method described is both quick and simple to learn and would be useful for the sole operator.

  7. Breastfeeding improvement following tongue-tie and lip-tie release: A prospective cohort study.

    Science.gov (United States)

    Ghaheri, Bobak A; Cole, Melissa; Fausel, Sarah C; Chuop, Maria; Mace, Jess C

    2017-05-01

    Numerous symptoms may arise that prevent mother-infant dyads from maintaining desired breastfeeding intervals. Investigations into treatments that positively influence breastfeeding outcomes allow for improved patient counseling for treatment decisions to optimize breastfeeding quality. This investigation aimed to determine the impact of surgical tongue-tie/lip-tie release on breastfeeding impairment. Prospective, cohort study from June 2014 to April 2015 in a private practice setting. Study participants consisted of breastfeeding mother-infant (0-12 weeks of age) dyads with untreated ankyloglossia and/or tethered maxillary labial frenula who completed preoperative, 1 week, and 1 month postoperative surveys consisting of the Breastfeeding Self-Efficacy Scale-Short Form (BSES-SF), visual analog scale (VAS) for nipple pain severity, and the revised Infant Gastroesophageal Reflux Questionnaire (I-GERQ-R). Breastmilk intake was measured preoperatively and 1 week postoperatively. A total of 237 dyads were enrolled after self-electing laser lingual frenotomy and/or maxillary labial frenectomy. Isolated posterior tongue-tie was identified in 78% of infants. Significant postoperative improvements were reported between mean preoperative scores compared to 1 week and 1 month scores of the BSES-SF (F (2) = 212.3; P < .001), the I-GERQ-R (F (2) = 85.3; P < .001), and VAS pain scale (F (2) = 259.8; P < .001). Average breastmilk intake improved 155% from 3.0 (2.9) to 4.9 (4.5) mL/min (P < .001). Surgical release of tongue-tie/lip-tie results in significant improvement in breastfeeding outcomes. Improvements occur early (1 week postoperatively) and continue to improve through 1 month postoperatively. Improvements were demonstrated in both infants with classic anterior tongue-tie and less obvious posterior tongue-tie. This study identifies a previously under-recognized patient population that may benefit from surgical intervention if abnormal breastfeeding symptoms exist. 2c

  8. Breastfeeding improvement following tongue‐tie and lip‐tie release: A prospective cohort study

    Science.gov (United States)

    Cole, Melissa; Fausel, Sarah C.; Chuop, Maria; Mace, Jess C.

    2016-01-01

    Objectives/Hypothesis Numerous symptoms may arise that prevent mother‐infant dyads from maintaining desired breastfeeding intervals. Investigations into treatments that positively influence breastfeeding outcomes allow for improved patient counseling for treatment decisions to optimize breastfeeding quality. This investigation aimed to determine the impact of surgical tongue‐tie/lip‐tie release on breastfeeding impairment. Study Design Prospective, cohort study from June 2014 to April 2015 in a private practice setting. Methods Study participants consisted of breastfeeding mother–infant (0–12 weeks of age) dyads with untreated ankyloglossia and/or tethered maxillary labial frenula who completed preoperative, 1 week, and 1 month postoperative surveys consisting of the Breastfeeding Self‐Efficacy Scale‐Short Form (BSES‐SF), visual analog scale (VAS) for nipple pain severity, and the revised Infant Gastroesophageal Reflux Questionnaire (I‐GERQ‐R). Breastmilk intake was measured preoperatively and 1 week postoperatively. Results A total of 237 dyads were enrolled after self‐electing laser lingual frenotomy and/or maxillary labial frenectomy. Isolated posterior tongue‐tie was identified in 78% of infants. Significant postoperative improvements were reported between mean preoperative scores compared to 1 week and 1 month scores of the BSES‐SF (F (2) = 212.3; P < .001), the I‐GERQ‐R (F (2) = 85.3; P < .001), and VAS pain scale (F (2) = 259.8; P < .001). Average breastmilk intake improved 155% from 3.0 (2.9) to 4.9 (4.5) mL/min (P < .001). Conclusions Surgical release of tongue‐tie/lip‐tie results in significant improvement in breastfeeding outcomes. Improvements occur early (1 week postoperatively) and continue to improve through 1 month postoperatively. Improvements were demonstrated in both infants with classic anterior tongue‐tie and less obvious posterior tongue‐tie. This study identifies a previously under‐recognized patient

  9. Strong convergence theorems for a common fixed point of a finite family of Bregman weak relativity nonexpansive mappings in reflexive Banach spaces.

    Science.gov (United States)

    Zegeye, Habtu; Shahzad, Naseer

    2014-01-01

    We introduce an iterative process for finding an element of a common fixed point of a finite family of Bregman weak relatively nonexpansive mappings. Our theorems improve and unify most of the results that have been proved for this important class of nonlinear operators.

  10. Dealing with symptoms and issues of hospitalized patients with cancer in indonesia: the role of families, nurses, and physicians.

    Science.gov (United States)

    Effendy, Christantie; Vissers, Kris; Tejawinata, Sunaryadi; Vernooij-Dassen, Myrra; Engels, Yvonne

    2015-06-01

    Patients with cancer often face physical, psychological, social, spiritual, and emotional symptoms. Our aim was to study symptoms and issues of hospitalized patients with cancer in Indonesia, a country with strong family ties, and how family members, nurses, and physicians deal with them. In 2011, 150 hospitalized cancer patients in 3 general hospitals in Indonesia were invited to fill in a questionnaire, which was based on the validated Problems and Needs of Palliative Care (short version) questionnaire. Descriptive statistics were performed. Of 119 patients (79%) who completed the questionnaire, 85% stated that their symptoms and issues were addressed. According to these patients, financial (56%), autonomy (36%), and psychosocial (34%) issues were most often addressed by the family alone. Physical symptoms (52%) and spiritual issues (33%) were addressed mainly by a combination of family, nurses, and physicians. Hospitalized patients with cancer in Indonesia felt that most of their symptoms and issues had been addressed, and the family was highly involved. The strong family ties in Indonesian culture may have contributed to this family role. More research is needed to clarify how this influences patient outcome, quality of care, and quality of life of both the patients and their families, along with the degree of partnership between families and professionals. This information might help answer the question what advantages and disadvantages the family role in caring for a hospitalized patient with cancer generates for the patient, the family, and professional caregivers. © 2014 World Institute of Pain.

  11. BSE Rap: intergenerational ties to save lives.

    Science.gov (United States)

    Ehmann, J L

    1993-09-01

    This article presents an innovative public-education strategy that was created to promote breast health awareness and early breast cancer detection among minority and low-income adolescent females. Given the importance of teaching breast self-examination (BSE), program development focused on creation of the BSE Rap, a lively music-video presentation. Increasing adolescents' knowledge and awareness of BSE is viewed as a springboard for disseminating information to their mothers and grandmothers. Funding was obtained for production of a video and a breast health diary, which are the program's key components. Marketing strategies included contacts with community organizations and healthcare professionals. Program evaluations reveal that the BSE Rap serves as a positive motivator for participants to discuss BSE and mammography with their mothers and grandmothers. The BSE Rap offers oncology nurses the opportunity to save lives using a unique and creative tool that focuses on intergenerational ties.

  12. Kinship, family and social network

    Directory of Open Access Journals (Sweden)

    2000-12-01

    Full Text Available There is considerable overlap between Le Play's mid-eighteenth-century household model map and the regional TFR map of central-southern Europe in the 1980s. The author examines the overall structure of relationships involved in Le Play's typology and observes that both the stem-family and the unstable family area in the Southern Europe are marked by a small, close-knit network of strong ties, with kinship predominance. Vice versa, the social support hinges upon a network of kin in the stem-family area, upon an alliance among different kindred units in the unstable Mediterranean area. All this leads to formulating a hypothesis of a tri-partite model for Western European relationship models. How can we explain the relationship between family predominance as anthropological embedding and family collapse as demographic reaction? The author reconsiders this question in the light of Festinger's cognitive dissonance theory and Elder's 'principle of accentuation': different, regionally rooted, family and kinship patterns "react" in contact with an appropriate reagent, such as the macro-process of modernisation, generating different patterns of today's demographic behaviour.

  13. Slow Off-rates and Strong Product Binding Are Required for Processivity and Efficient Degradation of Recalcitrant Chitin by Family 18 Chitinases*

    Science.gov (United States)

    Kurašin, Mihhail; Kuusk, Silja; Kuusk, Piret; Sørlie, Morten; Väljamäe, Priit

    2015-01-01

    Processive glycoside hydrolases are the key components of enzymatic machineries that decompose recalcitrant polysaccharides, such as chitin and cellulose. The intrinsic processivity (PIntr) of cellulases has been shown to be governed by the rate constant of dissociation from polymer chain (koff). However, the reported koff values of cellulases are strongly dependent on the method used for their measurement. Here, we developed a new method for determining koff, based on measuring the exchange rate of the enzyme between a non-labeled and a 14C-labeled polymeric substrate. The method was applied to the study of the processive chitinase ChiA from Serratia marcescens. In parallel, ChiA variants with weaker binding of the N-acetylglucosamine unit either in substrate-binding site −3 (ChiA-W167A) or the product-binding site +1 (ChiA-W275A) were studied. Both ChiA variants showed increased off-rates and lower apparent processivity on α-chitin. The rate of the production of insoluble reducing groups on the reduced α-chitin was an order of magnitude higher than koff, suggesting that the enzyme can initiate several processive runs without leaving the substrate. On crystalline chitin, the general activity of the wild type enzyme was higher, and the difference was magnifying with hydrolysis time. On amorphous chitin, the variants clearly outperformed the wild type. A model is proposed whereby strong interactions with polymer in the substrate-binding sites (low off-rates) and strong binding of the product in the product-binding sites (high pushing potential) are required for the removal of obstacles, like disintegration of chitin microfibrils. PMID:26468285

  14. Slow Off-rates and Strong Product Binding Are Required for Processivity and Efficient Degradation of Recalcitrant Chitin by Family 18 Chitinases.

    Science.gov (United States)

    Kurašin, Mihhail; Kuusk, Silja; Kuusk, Piret; Sørlie, Morten; Väljamäe, Priit

    2015-11-27

    Processive glycoside hydrolases are the key components of enzymatic machineries that decompose recalcitrant polysaccharides, such as chitin and cellulose. The intrinsic processivity (P(Intr)) of cellulases has been shown to be governed by the rate constant of dissociation from polymer chain (koff). However, the reported koff values of cellulases are strongly dependent on the method used for their measurement. Here, we developed a new method for determining koff, based on measuring the exchange rate of the enzyme between a non-labeled and a (14)C-labeled polymeric substrate. The method was applied to the study of the processive chitinase ChiA from Serratia marcescens. In parallel, ChiA variants with weaker binding of the N-acetylglucosamine unit either in substrate-binding site -3 (ChiA-W167A) or the product-binding site +1 (ChiA-W275A) were studied. Both ChiA variants showed increased off-rates and lower apparent processivity on α-chitin. The rate of the production of insoluble reducing groups on the reduced α-chitin was an order of magnitude higher than koff, suggesting that the enzyme can initiate several processive runs without leaving the substrate. On crystalline chitin, the general activity of the wild type enzyme was higher, and the difference was magnifying with hydrolysis time. On amorphous chitin, the variants clearly outperformed the wild type. A model is proposed whereby strong interactions with polymer in the substrate-binding sites (low off-rates) and strong binding of the product in the product-binding sites (high pushing potential) are required for the removal of obstacles, like disintegration of chitin microfibrils. © 2015 by The American Society for Biochemistry and Molecular Biology, Inc.

  15. Tie-breaking in games of perfect information

    DEFF Research Database (Denmark)

    Tranæs, Torben

    1998-01-01

    The paper suggests that ties in an extensive form game have strategic implications if they represent credible threats or promises. We consider a subset of subgame-perfect Nash equilibria obtained by breaking ties according to their strategic implications, and show that the subset is nonempty for ...... for finite extensive form games of perfect information....

  16. Economics of Concrete and Wood Tie Track Structures

    Science.gov (United States)

    1978-08-01

    This report presents results from an evaluation of the economic benefits of concrete- versus wood-tie track. The analysis includes the life-cycle capital, maintenance, and renewal costs for concrete- and wood-tie track for four specific test cases an...

  17. Tie2 signaling cooperates with TNF to promote the pro-inflammatory activation of human macrophages independently of macrophage functional phenotype.

    Directory of Open Access Journals (Sweden)

    Samuel García

    Full Text Available Angiopoietin (Ang -1 and -2 and their receptor Tie2 play critical roles in regulating angiogenic processes during development, homeostasis, tumorigenesis, inflammation and tissue repair. Tie2 signaling is best characterized in endothelial cells, but a subset of human and murine circulating monocytes/macrophages essential to solid tumor formation express Tie2 and display immunosuppressive properties consistent with M2 macrophage polarization. However, we have recently shown that Tie2 is strongly activated in pro-inflammatory macrophages present in rheumatoid arthritis patient synovial tissue. Here we examined the relationship between Tie2 expression and function during human macrophage polarization. Tie2 expression was observed under all polarization conditions, but was highest in IFN-γ and IL-10 -differentiated macrophages. While TNF enhanced expression of a common restricted set of genes involved in angiogenesis and inflammation in GM-CSF, IFN-γ and IL-10 -differentiated macrophages, expression of multiple chemokines and cytokines, including CXCL3, CXCL5, CXCL8, IL6, and IL12B was further augmented in the presence of Ang-1 and Ang-2, via Tie2 activation of JAK/STAT signaling. Conditioned medium from macrophages stimulated with Ang-1 or Ang-2 in combination with TNF, sustained monocyte recruitment. Our findings suggest a general role for Tie2 in cooperatively promoting the inflammatory activation of macrophages, independently of polarization conditions.

  18. The effect of communication change on long-term reductions in child exposure to conflict: impact of the promoting strong African American families (ProSAAF) program.

    Science.gov (United States)

    Beach, Steven R H; Barton, Allen W; Lei, Man Kit; Brody, Gene H; Kogan, Steven M; Hurt, Tera R; Fincham, Frank D; Stanley, Scott M

    2014-12-01

    African American couples (n = 331) with children, 89% of whom were married, were assigned to either (a) a culturally sensitive couple- and parenting-enhancement program (ProSAAF) or (b) an information-only control condition in which couples received self-help materials. Husbands averaged 41 years of age and wives averaged 39 years. We found significant effects of program participation in the short term on couple communication, which was targeted by the intervention, as well as over the long term, on self-reported arguing in front of children. Long-term parenting outcomes were fully mediated by changes in communication for wives, but not for husbands. For husbands, positive change depended on amount of wife reported change. We conclude that wives' changes in communication from baseline to posttest may be more pivotal for the couples' long-term experience of decreased arguing in front of children than are husbands' changes, with wives' changes leading to changes in both partners' reports of arguments in front of children. © 2014 Family Process Institute.

  19. Jesus and cultural values: Family life as an example

    Directory of Open Access Journals (Sweden)

    Carolyn Osiek

    1997-12-01

    Full Text Available 'Family values' is a set of traditional images that most cultures collect, images drawn mostly from an idealized picture of family life in the recent past. For Christians, the popular image of Jesus gets included: the Holy Family as a nuclear family unit, Jesus blessing children, Jesus as advocate of traditional family life. A closer reading of both contemporary family life and the Gospels reveals that things are not what they seem. Contemporary family life in Western societies is structured quite differently than the ideal. Jesus' family life was spent in a peasant village surrounded by relatives and neighbors, with little privacy and strong social pressure towards conformity. The gospel records indicate that he did not conform, and paid the price: rejection and misunderstanding by his extended family. The Synoptic Gospels consistently ponray not only an estrangement between Jesus and his family, but Jesus' encouragement of his disciples to break family ties in favor of the surrogate family of the circle of disciples. In a culture in which kinship loyalty was essential, this  message caused deep problems for early Christians which the authors of the household codes of Ephesians, Colossians, the  Pastoral Epistles, and 1 Peter tried to alleviate.

  20. Strengthening Social Ties to Increase Confidence and Self-Esteem Among Sexual and Gender Minority Youth.

    Science.gov (United States)

    Romijnders, Kim A; Wilkerson, J Michael; Crutzen, Rik; Kok, Gerjo; Bauldry, Jessica; Lawler, Sylvia M

    2017-05-01

    Sexual and gender minority (SGM) youth too often live in nonsupportive environments. This study reports the influence of social support from primary and secondary social ties on confidence and self-esteem among participants in Hatch Youth, a drop-in group-level intervention for SGM youth. Each 3-hour Hatch Youth meeting consists of a social, educational, and youth-led support hour. Over 14 weeks, these meetings were randomly observed and individual interviews with participating youth ( n = 12) and staff and volunteers ( n = 12) were conducted; data underwent a content analysis. Participants perceived an increase in confidence and self-esteem through enhanced bonding with family and friends, a sense of belonging, and community empowerment because of their involvement with Hatch Youth, suggesting drop-in centers can strengthen secondary social ties and improve confidence and self-esteem.

  1. Can Social Ties be Harmful? Examining the Spread of Suicide in Early Adulthood

    Science.gov (United States)

    Mueller, Anna S.; Abrutyn, Seth; Stockton, Cynthia

    2015-01-01

    Durkheim posited that social relationships protect individuals against suicide; however, substantial research demonstrates that suicide can spread through the very ties Durkheim theorized as protective. With this study, we use Waves I, III, and IV of the National Longitudinal Study of Adolescent Health, to investigate whether young adults’ suicide attempts and thoughts are in part products of exposure to suicidal behaviors via their social relationships. We find that young adults who have had family members or friends attempt suicide are more likely to report suicide ideation or even suicide attempts, over both the short and long run. This finding is robust to many important controls for risk and protective factors for suicide. Our findings have implications for the sociology of suicide, not the least of which, is that social ties have the power to harm in addition to the power to protect. PMID:26120243

  2. Can Social Ties be Harmful? Examining the Spread of Suicide in Early Adulthood.

    Science.gov (United States)

    Mueller, Anna S; Abrutyn, Seth; Stockton, Cynthia

    2015-06-01

    Durkheim posited that social relationships protect individuals against suicide; however, substantial research demonstrates that suicide can spread through the very ties Durkheim theorized as protective. With this study, we use Waves I, III, and IV of the National Longitudinal Study of Adolescent Health, to investigate whether young adults' suicide attempts and thoughts are in part products of exposure to suicidal behaviors via their social relationships. We find that young adults who have had family members or friends attempt suicide are more likely to report suicide ideation or even suicide attempts, over both the short and long run. This finding is robust to many important controls for risk and protective factors for suicide. Our findings have implications for the sociology of suicide, not the least of which, is that social ties have the power to harm in addition to the power to protect.

  3. Toxicity identification and evaluation (TIE) of a petroleum refinery wastewater.

    Science.gov (United States)

    Daflon, Sarah D A; Guerra, Igor L; Reynier, Márcia V; Cerqueira, Ana C; Botta, Clarice R; Campos, Juacyara C

    2017-07-29

    Petroleum refineries generate large amounts of wastewaters, which can have acute/chronic toxicity toward aquatic organisms. Previous studies have shown that many contaminants can be responsible for this toxicity, among them ammonia, sulfide, cyanide, phenols and hydrocarbons. In the study reported herein, the cause of the chronic toxicity of a biotreated petroleum refinery wastewater was investigated by applying the TIE methodology using the microcrustacean Ceriodaphnia dubia. Five samples were analyzed, and the results suggest that copper is the primary toxicant, showing a strong correlation with wastewater toxicity in Phase III. Other metal contaminants, such as zinc and nickel, are present in the samples at toxic concentrations and these may also contribute (to a lesser degree) toward the toxicity. In the case of one sample, the toxicity was attributed to polycyclic aromatic hydrocarbons (PAHs), possibly benzo(a)pyrene, which was present at a concentration toxic to C. dubia. Although the values for the physicochemical parameters of the samples were below Brazilian environmental regulation limits (CONAMA 430), this was not sufficient to prevent chronic toxicity toward aquatic life, indicating that these limits are relatively high.

  4. Cross-border ties as a source of risk and resilience: Do cross-border ties moderate the relationship between migration-related stress and psychological distress among Latino migrants in the United States?

    Science.gov (United States)

    Torres, Jacqueline M.; Alcántara, Carmela; Rudolph, Kara E.; Viruell-Fuentes, Edna A.

    2017-01-01

    Few studies have examined the associations between health and the cross-border ties that migrants maintain with their family members in communities of origin. We draw on theory related to social ties, ethnic identity, and mental health to examine cross-border ties as potential moderators of the association between migration-related stress and psychological distress among Latino migrants. Using data from the National Latino and Asian American Survey, we find that remittance sending is associated with significantly lower levels of psychological distress for Cuban migrants, and difficulty visiting home is associated with significantly greater psychological distress for Puerto Rican migrants. There were significant associations between migration-related stressors and psychological distress, although these associations fell to non-significance after accounting for multiple testing. We found little evidence that cross-border ties either buffer or exacerbate the association between migration-related stressors and psychological distress. We consider the findings within the current political and historical context of cross-border ties and separation. PMID:27803264

  5. The social tie and the malaise facing the helplessness

    Directory of Open Access Journals (Sweden)

    Cristina Aparecida Tannure Cavalcanti

    2015-12-01

    Full Text Available In this article we intend to approach the discourses as social ties, indicated by Lacan, relating them to the freudian concepts of helplessness (Hilflosigkeit and the malaise of civilization. The theory of discourses opens up a new way of thinking about clinical structures and social ties, by articulating language and enjoyment camps, the subject and the unconscious knowledge. This theory, while it takes over Freudian principles, it advances in impasses left by the Viennese master, in particular on the relationship between the metapsychological foundations of the subjective constitution and the conceptual bases concerning culture and actual social ties.

  6. An Exploratory Examination of Social Ties and Crime in Mobile Home Communities

    Directory of Open Access Journals (Sweden)

    William P. McCarty

    2013-11-01

    Full Text Available Guided by the systemic model of social disorganization, the purpose of this study was to explore the nature of social ties in mobile home communities and examine how that relates to rates of violent and property crime. Interviews with a small sample of mobile home residents, owners, and managers in Omaha, Nebraska, indicate a wide spectrum of communities, from those characterized by an atomized population to those with strong social ties. Fear of crime, ethnically heterogeneous populations, and lax management were cited by respondents as factors that undermined relationships. Proactive management and a desire to help neighbors were cited by respondents as factors that helped strengthen relationships. Violent and property crime rates for the mobile home communities were largely consistent with the interview data, providing support for the importance of social networks and a systemic model of social disorganization. The implications of these findings for research and policy are also explored.

  7. High-speed passenger rail tie-ballast interaction.

    Science.gov (United States)

    2015-05-01

    This Research Results Report presents : evidence of poor tie support and increased : applied loads that were used to determine the : root cause of transient and permanent vertical : displacements at two Amtrak bridge transitions. : These result...

  8. DO TIE LABORATORY BASED ASSESSMENT METHODS REALLY PREDICT FIELD EFFECTS?

    Science.gov (United States)

    Sediment Toxicity Identification and Evaluation (TIE) methods have been developed for both porewaters and whole sediments. These relatively simple laboratory methods are designed to identify specific toxicants or classes of toxicants in sediments; however, the question of whethe...

  9. DO TIE LABORATORY BASED METHODS REALLY REFLECT FIELD CONDITIONS

    Science.gov (United States)

    Sediment Toxicity Identification and Evaluation (TIE) methods have been developed for both interstitial waters and whole sediments. These relatively simple laboratory methods are designed to identify specific toxicants or classes of toxicants in sediments; however, the question ...

  10. Grand Performances: Building Self and Social Ties through Theatrical Performance

    Directory of Open Access Journals (Sweden)

    Stephanie May de Montigny

    2015-05-01

    Full Text Available The stories that individuals tell about their experiences on stage and behind-the-scenes at the Grand Opera House of Oshkosh, Wisconsin, contribute to their knowledge of self and social ties.

  11. Implications of Renewing US Military Ties with Indonesia

    National Research Council Canada - National Science Library

    Gayagas, Christine

    2003-01-01

    .... However, the US cut virtually all military ties with Indonesia in 1992 in response to allegations of Indonesian military human rights violations in efforts to repress the separatist movement in East Timor...

  12. Cracking and impact performance characteristics of plastic composite ties.

    Science.gov (United States)

    2012-03-01

    As followup to a workshop on Engineered Composite Ties sponsored by the American Railway Engineering and Maintenance-of-Way Association and the Federal Railroad Administration, the Transportation Technology Center, Inc., in Pueblo, CO, conducted a se...

  13. The Strength of Weak Ties You Can Trust: The Mediating Role of Trust in Effective Knowledge Transfer

    OpenAIRE

    Daniel Z. Levin; Rob Cross

    2004-01-01

    Research has demonstrated that relationships are critical to knowledge creation and transfer, yet findings have been mixed regarding the importance of relational and structural characteristics of social capital for the receipt of tacit and explicit knowledge. We propose and test a model of two-party (dyadic) knowledge exchange, with strong support in each of the three companies surveyed. First, the link between strong ties and receipt of useful knowledge (as reported by the knowledge seeker) ...

  14. Cross-border Ties and Arab American Mental Health

    Science.gov (United States)

    Samari, Goleen

    2016-01-01

    Due to increasing discrimination and marginalization, Arab Americans are at a greater risk for mental health disorders. Social networks that include ties to the country of origin could help promote mental well-being in the face of discrimination. The role of countries of origin in immigrant mental health receives little attention compared to adjustment in destination contexts. This study addresses this gap by analyzing the relationship between nativity, cross-border ties, and psychological distress and happiness for Arab Americans living in the greater Detroit Metropolitan Area (N=896). I expect that first generation Arab Americans will have more psychological distress compared to one and half, second, and third generations, and Arab Americans with more cross-border ties will have less psychological distress and more happiness. Data come from the 2003 Detroit Arab American Study, which includes measures of nativity, cross-border ties – attitudes, social ties, media consumption, and community organizations, and the Kessler-10 scale of psychological distress and self-reported happiness. Ordered logistic regression analyses suggest that psychological distress and happiness do not vary much by nativity alone. However, cross-border ties have both adverse and protective effects on psychological distress and happiness. For all generations of Arab Americans, cross-border attitudes and social ties are associated with greater odds of psychological distress and for first generation Arab Americans, media consumption is associated with greater odds of unhappiness. In contrast, for all generations, involvement in cross-border community organizations is associated with less psychological distress and for the third generation, positive cross-border attitudes are associated with higher odds of happiness. These findings show the complex relationship between cross-border ties and psychological distress and happiness for different generations of Arab Americans. PMID:26999416

  15. Cross-border ties and Arab American mental health.

    Science.gov (United States)

    Samari, Goleen

    2016-04-01

    Due to increasing discrimination and marginalization, Arab Americans are at a greater risk for mental health disorders. Social networks that include ties to the country of origin could help promote mental well-being in the face of discrimination. The role of countries of origin in immigrant mental health receives little attention compared to adjustment in destination contexts. This study addresses this gap by analyzing the relationship between nativity, cross-border ties, and psychological distress and happiness for Arab Americans living in the greater Detroit Metropolitan Area (N = 896). I expect that first generation Arab Americans will have more psychological distress compared to one and half, second, and third generations, and Arab Americans with more cross-border ties will have less psychological distress and more happiness. Data come from the 2003 Detroit Arab American Study, which includes measures of nativity, cross-border ties--attitudes, social ties, media consumption, and community organizations, and the Kessler-10 scale of psychological distress and self-reported happiness. Ordered logistic regression analyses suggest that psychological distress and happiness do not vary much by nativity alone. However, cross-border ties have both adverse and protective effects on psychological distress and happiness. For all generations of Arab Americans, cross-border attitudes and social ties are associated with greater odds of psychological distress and for first generation Arab Americans, media consumption is associated with greater odds of unhappiness. In contrast, for all generations, involvement in cross-border community organizations is associated with less psychological distress and for the third generation, positive cross-border attitudes are associated with higher odds of happiness. These findings show the complex relationship between cross-border ties and psychological distress and happiness for different generations of Arab Americans. Copyright © 2016

  16. The convict’s family as a participant in his penal resocialisation, readaptation and social reintegration

    Directory of Open Access Journals (Sweden)

    Henryk Machel

    2014-06-01

    Full Text Available One of the elements of penal social rehabilitation procedure is maintaining social ties with criminal’s families. The family bonds of criminal, maintained at an appropriate level, provide the basis for social re-processing, and for safeguarding criminals, freed conditionally or at the end of their sentences, from reoffending. Maintaining proper social ties between inmates and their families is essential for the proper process of penal reintegration and its end effect. The social bonds of prisoners can be classified according to the length of the sentence and depend on the type of sentence. If there is no family relationship (e.g. when someone is serving a sentence for an offense against their family it is not possible to use it in the social rehabilitation process. Weak familial bonds can be reconstructed and treated as one of the process’s important objectives. A strong familial bond can and should be used to support and strengthen that process. The family bond is felt somewhat differently by women (the issue is concern for children, fear of abandonment by life partners, etc. than by men. However, with regard to both categories of convicts, it plays an important role in the process of their rehabilitation and social re-adjustment, and helps prevent stigma. The recommended way of using good family relationships and rebuilding poor ties in penal work was applied with a positive effect for 20 months in a measured social rehabilitation experiment devised by the author, organised and implemented in a prison in Gdańsk-Przeróbka until the introduction of martial law in Poland in 1981. It was very positively evaluated by J. Rejman in his book entitled Change in the Polish penitentiary system – constraints and opportunities, published in 2013. The system operated throughout the entire prison facility and, as noted, was effective both in resocialisation and rehabilitation.

  17. Localization of the angiopoietin receptors Tie-1 and Tie-2 on the primary cilia in the female reproductive organs

    DEFF Research Database (Denmark)

    Teilmann, Stefan C; Christensen, Søren T

    2005-01-01

    Blood vessel homeostasis and endothelial cell survival depend on proper signalling through angiopoietin receptors such as the receptor tyrosine kinases Tie-1 and Tie-2. We have studied the presence and subcellular localization of these receptors in murine female reproductive organs using confocal...... organs play a novel and important sensory role in relaying physiochemical changes from the extracellular environment to epithelial cells of the oviduct, the ovary and extra-ovarian tissues....

  18. Tongue tie division in infants with breast feeding difficulties.

    Science.gov (United States)

    Wallace, Helen; Clarke, Susan

    2006-07-01

    Tongue tie is a congenital oral abnormality characterised by an abnormally short lingual frenulum. The majority of current medical and surgical opinion is that tongue tie rarely, if ever, causes feeding difficulties and therefore, should not be divided. With increased popularity of breast feeding in the last decade there has been renewed interest in tongue tie and its effect on breast feeding. We present a case series of infants who underwent tongue tie division for feeding difficulties and assess the indications for and outcomes of the procedure. Eleven infants with breast feeding difficulties associated with tongue tie underwent tongue tie division using a standard technique in the outpatient clinic. No anaesthetic or analgesia was used and there was little or no bleeding or infant distress. Parents were subsequently contacted by phone at least 4 months after the procedure to inquire about the effect of the procedure on feeding and any complications encountered. The age at tongue tie division ranged from 2 to 31 days (median=10 days). 10/11 of these infants were followed up. The age at follow up was 4-20 months (median=10 months). Prior to division, all mothers had attempted breast feeding and were keen to continue. 9/10 had experienced difficulties due to poor latch (8/10), sore nipples (6/10) and continual feeding cycle (5/10). Only 3/10 mothers were breast feeding exclusively. Following tongue tie division, an improvement in breast feeding was noticed immediately by 4/10 mothers. Three mothers did not notice any improvement. 6/10 mothers successfully breast fed for at least 4 months. There were no reported complications of the procedure. The benefits of breast feeding are well known and lactation consultants are becoming more aware of tongue tie as a treatable cause of breast feeding difficulty. The procedure is quick and simple, not requiring any analgesia or anaesthesia and can be performed in the outpatient clinic. Although not conclusive, this case series

  19. The development of a tongue assessment tool to assist with tongue-tie identification.

    Science.gov (United States)

    Ingram, Jenny; Johnson, Debbie; Copeland, Marion; Churchill, Cathy; Taylor, Hazel; Emond, Alan

    2015-07-01

    To produce a simple tool with good transferability to provide a consistent assessment of tongue appearance and function in infants with tongue-tie. The Bristol Tongue Assessment Tool (BTAT) was developed based on clinical practice and with reference to the Hazelbaker Assessment Tool for Lingual Frenulum Function (ATLFF). This paper documents 224 tongue assessments using the BTAT. There were 126 tongue assessments recorded using the BTAT and ATLFF tools to facilitate comparisons between them. Paired BTAT assessments were obtained from eight midwives who were using the new assessment tool. There was acceptable internal reliability for the four-item BTAT (Cronbach's α=0.708) and the eight midwives who used it showed good correlation in the consistency of its use (ICC=0.760). The BTAT showed a strong and significant correlation (0.89) with the ATLFF, indicating that the simpler BTAT could be used in place of the more detailed assessment tool to score the extent of a tongue-tie. Midwives found it quick and easy to use and felt that it would be easy to teach to others. The BTAT provides an objective, clear and simple measure of the severity of a tongue-tie, to inform selection of infants for frenotomy and to monitor the effect of the procedure. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  20. The Spontaneous Combustion of Railway Ties and Asphalt Shingles

    Science.gov (United States)

    Leslie, Geoffrey

    Many Low Carbon Fuels (LCFs) present unknown spontaneous combustion risks, which must be quantified before their use as fossil fuel replacements. Wood and coal spontaneous combustion is well understood; however, LCFs weather, and subsequent chemical changes could affect their spontaneous combustion properties. LCF spontaneous combustion could lead to accidental fires with possible loss of life, limb and property. The spontaneous combustion risks of two LCFs, discarded creosote-treated wooden railway ties and roofing asphalt shingles, were investigated with calorimetry and heat transfer experiments. Chemical changes due to weathering were studied with pyrolysis-Gas Chromatography/Mass Spectrometry (py-GC/MS). Creosote-treated wooden railway tie dust, roofing asphalt shingle particles, poplar wood pellets, and petroleum coke self-heating were studied with isothermal calorimetry. Railway tie dust and asphalt shingle heat transfer were characterized with a guarded hot plate. Petroleum coke self-heating was consistent with coal, while both poplar pellets and railway tie dust were found to be more reactive compared to oven test results of similar materials. The observed increase in reactivity was probably a result of significant moisture contenint in the pellet and railway tie dust. Critical conditions for spontaneous combustion were evaluated with the Frank-Kamenetskii parameter, assuming an ambient temperature of 40°C and constant moisture content. Kamenetskii calculations indicate that a 1.6 m cube of railway tie dust, or a 58 m cube of asphalt particles, would be unstable and combust. LCF chemistry may have been affected by weathering, which would cause chemical changes that affect their spontaneous combustion properties. Therefore, railway tie wood and roofing asphalt shingle chemistry were investigated by identifying products of 250° and 550°C pyrolysis with py-GC/MS. Railway tie wood pyrolyzates did not show signs of weathering; in contrast, asphalt pyrolysis

  1. Novel thienopyrimidine and thiazolopyrimidine kinase inhibitors with activity against Tie-2 in vitro and in vivo.

    Science.gov (United States)

    Luke, Richard W A; Ballard, Peter; Buttar, David; Campbell, Leonie; Curwen, Jon; Emery, Steve C; Griffen, Alison M; Hassall, Lorraine; Hayter, Barry R; Jones, Cliff D; McCoull, William; Mellor, Martine; Swain, Mike L; Tucker, Julie A

    2009-12-01

    The SAR and improvement in potency against Tie2 of novel thienopyrimidine and thiazolopyrimidine kinase inhibitors are reported. The crystal structure of one of these compounds bound to the Tie-2 kinase domain is consistent with the SAR. These compounds have moderate potency in cellular assays of Tie-2 inhibition, good physical properties, DMPK, and show evidence of in vivo inhibition of Tie-2.

  2. 78 FR 75545 - Prestressed Concrete Steel Rail Tie Wire From the People's Republic of China: Preliminary...

    Science.gov (United States)

    2013-12-12

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-990] Prestressed Concrete Steel... (``Department'') preliminarily determines that prestressed concrete steel rail tie wire (``PC tie wire'') from... prestressed tendons in concrete railroad ties (``PC tie wire''). High carbon steel is defined as steel that...

  3. Improving breastfeeding outcomes: the impact of tongue-tie.

    Science.gov (United States)

    Jackson, Rosemary

    2012-06-01

    A tongue-tie (ankyloglossia) is defined as a lingual frenulum that is short, tight and restricts normal tongue movement. The tongue-tied newborn baby then has a mechanical difficulty attaching to his mum's breast and maintaining attachment to feed effectively. In the hands of skilled carers, this mechanical problem can be resolved by releasing the frenulum (frenulotomy) and the baby's access to his/her mother's breast milk be preserved. Published research on this subject has undergone justifiable criticism. Robust methodology was lacking in earlier studies. An overview of the course of researchers' response to critique is discussed. The care pathway in place in mid-Norfolk for mother and baby dyads where the baby's tongue-tie compromises efficient breastfeeding is outlined.

  4. Tongue-tie and breastfeeding: a review of the literature.

    Science.gov (United States)

    Edmunds, Janet; Miles, Sandra C; Fulbrook, Paul

    2011-03-01

    In Australia, initial exclusive breastfeeding rates are 80%, reducing to 14% at 6 months. One factor that contributes to early breastfeeding cessation is infant tongue-tie, a congenital abnormality occurring in 2.8-10.7% of infants, in which a thickened, tightened or shortened frenulum is present. Tongue-tie is linked to breastfeeding difficulties, speech and dental problems. It may prevent the baby from taking enough breast tissue into its mouth to form a teat and the mother may experience painful, bleeding nipples and frequent feeding with poor infant weight gain; these problems may contribute to early breastfeeding cessation. This review of research literature analyses the evidence regarding tongue-tie to determine if appropriate intervention can reduce its impact on breastfeeding cessation, concluding that, for most infants, frenotomy offers the best chance of improved and continued breastfeeding. Furthermore, studies have demonstrated that the procedure does not lead to complications for the infant or mother.

  5. Social ties and risk for cancer - a prospective cohort study

    DEFF Research Database (Denmark)

    Bergelt, Corinna; Prescott, Eva; Grønbaek, Morten

    2009-01-01

    BACKGROUND: Poor social support and small social networks have been associated with increased risks for conditions such as coronary heart disease as well as with overall mortality. We investigated the association between social ties and risk for cancer. MATERIAL AND METHODS: The study sample...... consisted of 8 548 Danes who had been examined in 1991-1994 within the Copenhagen City Heart Study. The median length of follow-up was 9.3 years (range, 0-11.2 years). Social ties were measured from answers to a questionnaire on social networks. Regression analyses for cancers at the most frequent sites...... (breast, lung, prostate and colon and rectum) were conducted with the Cox proportional hazards model, with adjustment for a number of well-known risk factors for cancer. RESULTS: While we found no significant association between social ties and risk for cancer in men, women with high social network scores...

  6. Social ties and risk for cancer - a prospective cohort study

    DEFF Research Database (Denmark)

    Bergelt, C.; Prescott, E.; Gronbaek, M.

    2009-01-01

    Background. Poor social support and small social networks have been associated with increased risks for conditions such as coronary heart disease as well as with overall mortality. We investigated the association between social ties and risk for cancer. Material and methods. The study sample...... consisted of 8 548 Danes who had been examined in 1991-1994 within the Copenhagen City Heart Study. The median length of follow-up was 9.3 years (range, 0-11.2 years). Social ties were measured from answers to a questionnaire on social networks. Regression analyses for cancers at the most frequent sites...... (breast, lung, prostate and colon and rectum) were conducted with the Cox proportional hazards model, with adjustment for a number of well-known risk factors for cancer. Results. While we found no significant association between social ties and risk for cancer in men, women with high social network scores...

  7. Evaluation of a Family Wellness Course for Persons in Prison

    Science.gov (United States)

    Bell, Linda G.; Cornwell, Connie S.

    2015-01-01

    This research supports the value of maintaining the family ties of persons in prison. Family healing work will likely affect multiple relationships within the family, especially for the children of prisoners, and increase the possibility of healthy and productive life choices for all family members. The Family Matters course is grounded in family…

  8. Reciprocity, social ties, and competition in markets for experience goods

    DEFF Research Database (Denmark)

    Huck, Steffen; Tyran, Jean-Robert

    2007-01-01

    Reciprocal customers may disproportionately improve the performance of markets for experience goods. Reciprocal customers reward (punish) firms for providing good (bad) quality by upholding (terminating) the customer relation. This may induce firms to provide good quality which, in turn, may induce...... a positive externality for non-reciprocal customers who would, in the absence of reciprocal types, face market breakdown. This efficiency-enhancing effect of reciprocity is boosted when there are social ties between consumers and competition between firms. The existence of social ties or competition alone...

  9. Subsea Tie-in, design solutions and optimisation methods

    OpenAIRE

    Andersen, Loyd Kjetil H.

    2015-01-01

    Master's thesis in Mechanical engineering Subsea Tie-in Systems is used to connect pipes between subsea structures in the offshore oil and gas industry. Subsea Tie-in system has been developed for many decades by the industry, and is used throughout the world in many subsea oil and gas fields of today. Industry experience and various piping codes have been developed and used in the design over the years. However there has been a lack of recommended standard practice and guideline for desig...

  10. Work-family life courses and markers of stress and inflammation in mid-life: evidence from the National Child Development Study.

    Science.gov (United States)

    Lacey, Rebecca E; Sacker, Amanda; Kumari, Meena; Worts, Diana; McDonough, Peggy; Booker, Cara; McMunn, Anne

    2016-08-01

    This study investigated associations between work-family life courses and biomarkers of inflammation and stress in mid-life among British men and women. Gender differences in these associations were also explored. A novel statistical method-multi-channel sequence analysis-defined work-family life courses between the ages of 16 and 42 years, combining annual information on work, partnership and parenthood. Associations between work-family life courses and inflammation [C-reactive protein (CRP), fibrinogen and von Willebrand factor] and cortisol at age 44/45 years were tested using multivariate linear regression using multiply-imputed data on almost 6500 participants from the National Child Development Study 1958 British birth cohort. Compared with those who combined strong ties to paid work with later transitions to stable family lives ('Work, later family' group), 'Teen parents' had higher CRP [40.6% higher, 95% confidence interval (CI): 5.6, 87.0] and fibrinogen (7.8% higher, 95% CI: 2.3, 13.5) levels, and homemakers ('No paid work, early family') had raised fibrinogen levels (4.7% higher, 95% CI: 0.7, 9.0), independent of childhood health and socioeconomic position, adult socioeconomic position, health behaviours and body mass index (BMI). Those who combined later transitions to stable family ties with a career break for childrearing had higher post-waking cortisol than the 'Work, later family' group; however, no associations were seen for other work-family types, therefore suggesting a null finding with cortisol. No statistically significant gender interactions in associations between work-family types and inflammatory or cortisol outcomes were found. Work-family life courses characterised by early parenthood or weak work ties were associated with a raised risk profile in relation to chronic inflammation. © The Author 2015. Published by Oxford University Press on behalf of the International Epidemiological Association.

  11. Application of Bow-tie methodology to improve patient safety.

    Science.gov (United States)

    Abdi, Zhaleh; Ravaghi, Hamid; Abbasi, Mohsen; Delgoshaei, Bahram; Esfandiari, Somayeh

    2016-05-09

    Purpose - The purpose of this paper is to apply Bow-tie methodology, a proactive risk assessment technique based on systemic approach, for prospective analysis of the risks threatening patient safety in intensive care unit (ICU). Design/methodology/approach - Bow-tie methodology was used to manage clinical risks threatening patient safety by a multidisciplinary team in the ICU. The Bow-tie analysis was conducted on incidents related to high-alert medications, ventilator associated pneumonia, catheter-related blood stream infection, urinary tract infection, and unwanted extubation. Findings - In total, 48 potential adverse events were analysed. The causal factors were identified and classified into relevant categories. The number and effectiveness of existing preventive and protective barriers were examined for each potential adverse event. The adverse events were evaluated according to the risk criteria and a set of interventions were proposed with the aim of improving the existing barriers or implementing new barriers. A number of recommendations were implemented in the ICU, while considering their feasibility. Originality/value - The application of Bow-tie methodology led to practical recommendations to eliminate or control the hazards identified. It also contributed to better understanding of hazard prevention and protection required for safe operations in clinical settings.

  12. Knotcraft the practical and entertaining art of tying knots

    CERN Document Server

    Macfarlan, Allan and Paulette

    1983-01-01

    Comprehensive reference work explains how to tie hundreds of practical (and decorative) knots in clear illustrations and precisely worded written instructions. Ideal for boaters and campers. Also covers knots in history, knot mystery and magic, and games, stunts and tricks with rope. Introduction. Index. 166 black-and-white illustrations.

  13. Contextualizing dyadic ties, social capital and Ubuntu as ...

    African Journals Online (AJOL)

    This article does not oppose the idea of the presence of hostility in the relationships between these two groups, however, it argues that using the xenophobic brush to paint these ties as a monochrome does not provide a holistic picture of a complex nature of relationships that exist beyond xenophobia. Critical questions ...

  14. Teaching Tongue-Tied Students: Ankyloglossia in the Instrumental Classroom

    Science.gov (United States)

    Dovel, Jason

    2010-01-01

    Ankyloglossia is a significant medical condition that has not been adequately addressed in music education literature. While practically every instructor will have students who struggle with ankyloglossia, many teachers are entirely unaware of this condition's various symptoms and treatments. Ankyloglossia, more commonly known as tongue-tie, is a…

  15. Neural correlates of dynamically evolving interpersonal ties predict prosocial behaviour

    Directory of Open Access Journals (Sweden)

    Johannes Jacobus Fahrenfort

    2012-03-01

    Full Text Available There is a growing interest for the determinants of human choice behaviour in social settings. Upon initial contact, investment choices in social settings can be inherently risky, as the degree to which the other person will reciprocate is unknown. Nevertheless, people have been shown to exhibit prosocial behaviour even in one-shot laboratory settings where all interaction has been taken away. A logical step has been to link such behaviour to trait empathy-related neurobiological networks. However, as a social interaction unfolds, the degree of uncertainty with respect to the expected payoff of choice behaviour may change as a function of the interaction. Here we attempt to capture this factor. We show that the interpersonal tie one develops with another person during interaction - rather than trait empathy - motivates investment in a public good that is shared with an anonymous interaction partner. We examined how individual differences in trait empathy and interpersonal ties modulate neural responses to imposed monetary sharing. After, but not before interaction in a public good game, sharing prompted activation of neural systems associated with reward (striatum, empathy (anterior insular cortex [AIC] and anterior cingulate cortex [ACC] as well as altruism and social significance (posterior superior temporal sulcus [pSTS]. Although these activations could be linked to both empathy and interpersonal ties, only tie-related pSTS activation predicted prosocial behaviour during subsequent interaction, suggesting a neural substrate for keeping track of social relevance.

  16. The Ties That Bind Exhibition Science Bringing Nations Together

    CERN Multimedia

    1997-01-01

    Scientific ties between JINR and CERN date back to 1957, when JINR Vice-Director Marian Danysz, a Polish professor, visited CERN and agreed with CERN Director-General C.J. Bakker on the exchange of scientists and on joint experiments. Since that time to progress and now JINR takes an active part in the Large Hadron Collider, LHC, project at CERN.

  17. Measurement of the location of tie-bar shoulders

    CERN Multimedia

    Hubert Gerwig

    2001-01-01

    The inner vactank is machined on a length of 13m at the location of the rails for HCAL. in addition at one side the inner vactank has shoulders to lodge the M48 tie-bars that will guarantee the fixation to the swivelling platform actually produced at HANJUNG Company in South Korea

  18. Neural Correlates of Dynamically Evolving Interpersonal Ties Predict Prosocial Behavior

    Science.gov (United States)

    Fahrenfort, Johannes J.; van Winden, Frans; Pelloux, Benjamin; Stallen, Mirre; Ridderinkhof, K. Richard

    2011-01-01

    There is a growing interest for the determinants of human choice behavior in social settings. Upon initial contact, investment choices in social settings can be inherently risky, as the degree to which the other person will reciprocate is unknown. Nevertheless, people have been shown to exhibit prosocial behavior even in one-shot laboratory settings where all interaction has been taken away. A logical step has been to link such behavior to trait empathy-related neurobiological networks. However, as a social interaction unfolds, the degree of uncertainty with respect to the expected payoff of choice behavior may change as a function of the interaction. Here we attempt to capture this factor. We show that the interpersonal tie one develops with another person during interaction – rather than trait empathy – motivates investment in a public good that is shared with an anonymous interaction partner. We examined how individual differences in trait empathy and interpersonal ties modulate neural responses to imposed monetary sharing. After, but not before interaction in a public good game, sharing prompted activation of neural systems associated with reward (striatum), empathy (anterior insular cortex and anterior cingulate cortex) as well as altruism, and social significance [posterior superior temporal sulcus (pSTS)]. Although these activations could be linked to both empathy and interpersonal ties, only tie-related pSTS activation predicted prosocial behavior during subsequent interaction, suggesting a neural substrate for keeping track of social relevance. PMID:22403524

  19. Work-Family Life Courses and Metabolic Markers in the MRC National Survey of Health and Development

    Science.gov (United States)

    Kumari, Meena; Sacker, Amanda; Stafford, Mai; Kuh, Diana; McMunn, Anne

    2016-01-01

    The aim was to investigate whether the combined work-family life courses of British men and women were associated with differences in metabolic markers—waist circumference, blood pressure, high density lipoprotein cholesterol, triglycerides, and glycated haemoglobin—in mid-life. We used data from the Medical Research Council’s National Survey of Health and Development—the 1946 British birth cohort. Multi-channel sequence analysis was used to create a typology of eight work-family life course types combining information on work, partnerships and parenthood between ages 16–51. Linear regression tested associations between work-family types and metabolic outcomes at age 53 on multiply imputed data (20 imputations) of >2,400 participants. Compared with men with strong ties to employment and early transitions to family life, men who made later transitions to parenthood and maintained strong ties to paid work had smaller waist circumferences (-2.16cm, 95% CI: -3.73, -0.59), lower triglycerides (9.78% lower, 95% CI: 0.81, 17.94) and lower blood pressure (systolic: -4.03mmHg, 95% CI: -6.93, -1.13; diastolic: -2.34mmHg, 95% CI: -4.15, -0.53). Married men and women who didn’t have children had increased high density lipoprotein cholesterol (7.23% higher, 95% CI: 0.68, 14.21) and lower waist circumferences (-4.67cm, 95% CI: -8.37, -0.97), respectively. For men later transitions to parenthood combined with strong ties to paid work were linked to reduced metabolic risk in mid-life. Fewer differences between work-family types and metabolic markers were seen for women. PMID:27563726

  20. Family First? The Costs and Benefits of Family Centrality for Adolescents with High-Conflict Families.

    Science.gov (United States)

    Yuen, Cynthia X; Fuligni, Andrew J; Gonzales, Nancy; Telzer, Eva H

    2018-02-01

    Youth who do not identify with or value their families (i.e., low family centrality) are considered to be at risk for maladjustment. However, the current study investigated whether low family centrality may be adaptive in negative family contexts (i.e., high family conflict) because youth's self-worth should be less tied to the quality of their family relationships. Multilevel models using daily diaries and latent variable interactions using longitudinal questionnaires indicated that, among a sample of 428 Mexican American adolescents (49.8% male, M age  = 15.02 years), lower family centrality was generally detrimental to youth's well-being. However, for youth in adverse family environments, low family centrality ceased to function as a risk factor. The present findings suggest that family centrality values play a more nuanced role in youth well-being than previously believed, such that low family centrality may be an adaptive response to significant family challenges.

  1. What is a family? Kinship, reproductive practices and single mothers by choice

    DEFF Research Database (Denmark)

    Ravn, Tine

    The proliferation of assisted reproductive technologies (ARTs) such as in vitro fertilization (IVF) has influenced and facilitated the rise of ‘new’ kinship practices and family formations. Furthermore, these technologies – in obscuring the relation between ‘biological facts of conception...... of single mothers by choice, the paper explores how the women conceive and enact the notions of family and kinship in terms of creating significant relations and networks. Furthermore, the paper shows and discusses how a complex interplay of biogenetic and social ties impacts on these family conceptions......, showing that the application of ARTs is also fashioned by more traditional notions of kinship (Levine 2008; Thompson 2005) and that the nuclear family ideal remains a strong notion within the realms of reproduction and parenting (Cutas & Chan 2012:5). By contributing to this continuing question of how...

  2. Absent bow-tie sign in knee MRI

    International Nuclear Information System (INIS)

    Lee, Young Uk; Park, Jun Yong; Chung, Eun Chul; Youn, Eun Kyung; Lee, Chang Seok; Ji, Jun Ha; Lee, Kwang Chul

    2000-01-01

    'Absent bow-tie sign' is interpreted as positive when a bow-tie-shaped body segment is seen on only one or no slice of 4- or 5-mm thick sagittal images, and is a well known as a useful sign in diagnosing bucket-handle meniscal tears. In practice, however, we have found that this sign was also positive in certain cases other than bucket-handle tears. We have assumed that if the normal range of meniscal body width, as determined among westerners, is transferred to the Korean population without verification and modification this might lead to misdiagnosis. The purpose of this study, therefore, is to examination the reliability of the 'absent bow-tie sign'. Among 454 cases in which knee MRI had been performed, we retrospectively evaluated 862 menisci, the total remaining after cases of discoid meniscus or those involving previous meniscectomy had been excluded. Among the 862 menisci, 614 were normal, 97 showed degeneration, 43 showed bucket-handle tearing, and 108 showed tears other than bucket-handle tear. In all cases, proton-density and T2-weighted images were obtained in both sagittal and coronal planes, with 3mm section thickness and 1mm gap. We recorded the number of sagittal images in which the body segment of each meniscus had a bow-tie appearance, and measured the width of each meniscal body, as seen on midcoronal images. In all cases but one of bucket-handle tears (97.7%), the bow-tie sign was absent, as it was in 73.2% of non-bucket-handle tears, 35.0% of degenerated menisci and 27.5% of normal menisci. Among the non-tear group, 56.4% of menisci in the female group and 27.1% in the male group had bodies less than 9mm wide. In the diagnosis of bucket-handle tears, the 'absent bow-tie sign' is a very sensitive indicator. It is nonspecific, however, and merely suggests some significant deficiency in the meniscus body or small menisci, so can be positive in other cases. Thus the interpreter should be aware of the characteristics of this sign especially when used

  3. Absent bow-tie sign in knee MRI

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Young Uk; Park, Jun Yong; Chung, Eun Chul; Youn, Eun Kyung; Lee, Chang Seok; Ji, Jun Ha; Lee, Kwang Chul [School of Medicine, Sunkyunkwan University, Seoul (Korea, Republic of)

    2000-01-01

    'Absent bow-tie sign' is interpreted as positive when a bow-tie-shaped body segment is seen on only one or no slice of 4- or 5-mm thick sagittal images, and is a well known as a useful sign in diagnosing bucket-handle meniscal tears. In practice, however, we have found that this sign was also positive in certain cases other than bucket-handle tears. We have assumed that if the normal range of meniscal body width, as determined among westerners, is transferred to the Korean population without verification and modification this might lead to misdiagnosis. The purpose of this study, therefore, is to examination the reliability of the 'absent bow-tie sign'. Among 454 cases in which knee MRI had been performed, we retrospectively evaluated 862 menisci, the total remaining after cases of discoid meniscus or those involving previous meniscectomy had been excluded. Among the 862 menisci, 614 were normal, 97 showed degeneration, 43 showed bucket-handle tearing, and 108 showed tears other than bucket-handle tear. In all cases, proton-density and T2-weighted images were obtained in both sagittal and coronal planes, with 3mm section thickness and 1mm gap. We recorded the number of sagittal images in which the body segment of each meniscus had a bow-tie appearance, and measured the width of each meniscal body, as seen on midcoronal images. In all cases but one of bucket-handle tears (97.7%), the bow-tie sign was absent, as it was in 73.2% of non-bucket-handle tears, 35.0% of degenerated menisci and 27.5% of normal menisci. Among the non-tear group, 56.4% of menisci in the female group and 27.1% in the male group had bodies less than 9mm wide. In the diagnosis of bucket-handle tears, the 'absent bow-tie sign' is a very sensitive indicator. It is nonspecific, however, and merely suggests some significant deficiency in the meniscus body or small menisci, so can be positive in other cases. Thus the interpreter should be aware of the characteristics of

  4. How Social Ties Influence Consumer: Evidence from Event-Related Potentials.

    Directory of Open Access Journals (Sweden)

    Jing Luan

    Full Text Available A considerable amount of marketing research has reported that consumers are more saliently influenced by friends (strong social ties than by acquaintances and strangers (weak social ties. To shed light on the neural and psychological processes underlying such phenomenon, in this study we designed an amended S1-S2 paradigm (product-[reviewer-review] that is based on realistic consumer purchase experiences. After incoming all given information (product, reviewer, review, participants were required to state their purchase intentions. The neurocognitive and emotional processes related to friend and stranger stimuli were delineated to suggest how social ties influence consumers during their shopping processes. Larger P2 (fronto-central scalp areas and P3 (central and posterior-parietal scalp areas components under stranger condition were elicited successfully. These findings demonstrate that the cognitive and emotional processing of friend and stranger stimuli occurs at stages of neural activity, and can be indicated by the P2 and P3 components. Electrophysiological data also support the hypothesis that different neural and emotional processing magnitude and strength underlie friend and stranger effect in the context of consumer purchase. During this process, the perception of stimuli evoked P2, subsequently emotional processing and attention modulation were activated and indicated by P2 and P3. The friend dominated phenomenon can be interpreted as the result of distinctive neurocognitive and emotional processing magnitude, which suggests that psychological and emotional factors can guide consumer decision making. This study consolidates that event related potential (ERP methodology is likely to be a more sensitive method for investigating consumer behaviors. From the perspectives of management and marketing, our findings show that the P2 and P3 components can be employed as an indicator to probe the influential factors of consumer purchase

  5. How Social Ties Influence Consumer: Evidence from Event-Related Potentials.

    Science.gov (United States)

    Luan, Jing; Yao, Zhong; Bai, Yan

    2017-01-01

    A considerable amount of marketing research has reported that consumers are more saliently influenced by friends (strong social ties) than by acquaintances and strangers (weak social ties). To shed light on the neural and psychological processes underlying such phenomenon, in this study we designed an amended S1-S2 paradigm (product-[reviewer-review]) that is based on realistic consumer purchase experiences. After incoming all given information (product, reviewer, review), participants were required to state their purchase intentions. The neurocognitive and emotional processes related to friend and stranger stimuli were delineated to suggest how social ties influence consumers during their shopping processes. Larger P2 (fronto-central scalp areas) and P3 (central and posterior-parietal scalp areas) components under stranger condition were elicited successfully. These findings demonstrate that the cognitive and emotional processing of friend and stranger stimuli occurs at stages of neural activity, and can be indicated by the P2 and P3 components. Electrophysiological data also support the hypothesis that different neural and emotional processing magnitude and strength underlie friend and stranger effect in the context of consumer purchase. During this process, the perception of stimuli evoked P2, subsequently emotional processing and attention modulation were activated and indicated by P2 and P3. The friend dominated phenomenon can be interpreted as the result of distinctive neurocognitive and emotional processing magnitude, which suggests that psychological and emotional factors can guide consumer decision making. This study consolidates that event related potential (ERP) methodology is likely to be a more sensitive method for investigating consumer behaviors. From the perspectives of management and marketing, our findings show that the P2 and P3 components can be employed as an indicator to probe the influential factors of consumer purchase intentions.

  6. Impact of weak social ties and networks on poor sleep quality: A case study of Iranian employees.

    Science.gov (United States)

    Masoudnia, Ebrahim

    2015-12-01

    The poor sleep quality is one of the major risk factors of somatic, psychiatric and social disorders and conditions as well as the major predictors of quality of employees' performance. The previous studies in Iran had neglected the impacts of social factors including social networks and ties on adults sleep quality. Thus, the aim of the current research was to determine the relationship between social networks and adult employees' sleep quality. This study was conducted with a correlational and descriptive design. Data were collected from 360 participants (183 males and 177 females) who were employed in Yazd public organizations in June and July of 2014. These samples were selected based on random sampling method. In addition, the measuring tools were the Pittsburgh Sleep Quality Index (PSQI) and Social Relations Inventory (SRI). Based on the results, the prevalence rate of sleep disorder among Iranian adult employees was 63.1% (total PSQI>5). And, after controlling for socio-demographic variables, there was significant difference between individuals with strong and poor social network and ties in terms of overall sleep quality (psocial network and ties had better overall sleep quality, had the most habitual sleep efficiency, and less daytime dysfunction than employees with poor social network and ties. It can be implied that the weak social network and ties serve as a risk factor for sleep disorders or poor sleep quality for adult employees. Therefore, the social and behavioral interventions seem essential to improve the adult's quality sleep. Copyright © 2015 Elsevier B.V. All rights reserved.

  7. Child first language and adult second language are both tied to general-purpose learning systems.

    Science.gov (United States)

    Hamrick, Phillip; Lum, Jarrad A G; Ullman, Michael T

    2018-02-13

    Do the mechanisms underlying language in fact serve general-purpose functions that preexist this uniquely human capacity? To address this contentious and empirically challenging issue, we systematically tested the predictions of a well-studied neurocognitive theory of language motivated by evolutionary principles. Multiple metaanalyses were performed to examine predicted links between language and two general-purpose learning systems, declarative and procedural memory. The results tied lexical abilities to learning only in declarative memory, while grammar was linked to learning in both systems in both child first language and adult second language, in specific ways. In second language learners, grammar was associated with only declarative memory at lower language experience, but with only procedural memory at higher experience. The findings yielded large effect sizes and held consistently across languages, language families, linguistic structures, and tasks, underscoring their reliability and validity. The results, which met the predicted pattern, provide comprehensive evidence that language is tied to general-purpose systems both in children acquiring their native language and adults learning an additional language. Crucially, if language learning relies on these systems, then our extensive knowledge of the systems from animal and human studies may also apply to this domain, leading to predictions that might be unwarranted in the more circumscribed study of language. Thus, by demonstrating a role for these systems in language, the findings simultaneously lay a foundation for potentially important advances in the study of this critical domain.

  8. Immigrant Families over the Life Course: Research Directions and Needs

    Science.gov (United States)

    Clark, Rebecca L.; Glick, Jennifer E.; Bures, Regina M.

    2009-01-01

    Family researchers and policy makers are giving increasing attention to the consequences of immigration for families. Immigration affects the lives of family members who migrate as well as those who remain behind and has important consequences for family formation, kinship ties, living arrangements, and children's outcomes. We present a selective…

  9. The availability of community ties predicts likelihood of peer referral for mammography: geographic constraints on viral marketing.

    Science.gov (United States)

    Southwell, Brian G; Slater, Jonathan S; Rothman, Alexander J; Friedenberg, Laura M; Allison, Tiffany R; Nelson, Christina L

    2010-11-01

    Engaging social networks to encourage preventive health behavior offers a supplement to conventional mass media campaigns and yet we do not fully understand the conditions that facilitate or hamper such interpersonal diffusion. One set of factors that should affect the diffusion of health campaign information involves a person's community. Variables describing geographic communities should predict the likelihood of residents accepting campaign invitations to pass along information to friends, family, and others. We investigate two aspects of a community--the availability of community ties and residential stability--as potential influences on diffusion of publicly-funded breast cancer screening in the United States in 2008-2009. In a survey study of 1515 participants living in 91 zip codes across the State of Minnesota, USA, we focus on the extent to which women refer others when given the opportunity to nominate family, friends, and peers to receive free mammograms. We predicted nomination tendency for a particular zip code would be a function of available community ties, measured as religious congregation density in that zip code, and also expected the predictive power of available ties would be greatest in communities with relatively high residential stability (meaning lower turnover in home residence). Results support our hypotheses. Congregation density positively predicted nomination tendency both in bivariate analysis and in Tobit regression models, and was most predictive in zip codes above the median in residential stability. We conclude that having a local infrastructure of social ties available in a community predicts the diffusion of available health care services in that community. Copyright © 2010 Elsevier Ltd. All rights reserved.

  10. Tongue-tie, breastfeeding difficulties and the role of Frenotomy.

    Science.gov (United States)

    Kumar, Manoj; Kalke, Erica

    2012-07-01

    A greater emphasis on exclusive breastfeeding in recent years has re-ignited the historical debate over the role of ankyloglossia (tongue-tie) in infants with breastfeeding difficulties. Several prospective cohort studies and randomized control trials have been published in this area in the last 10-15 years. We critically evaluated recent evidence and attempted to answer two important clinical queries in this area, that is, (i) whether ankyloglossia is associated with breastfeeding difficulties and (ii) whether frenotomy helps mother-baby dyad in such setting? Neonates with tongue-tie are at increased risk for breastfeeding difficulties. An early recognition of this association by primary care provider and prompt referral to a lactation consultant is important. In cases with clearly documented breastfeeding difficulties, frenotomy often results in rapid improvement in symptoms. © 2012 The Author(s)/Acta Paediatrica © 2012 Foundation Acta Paediatrica.

  11. Mobile phones, social ties, and collective action mobilization in China

    DEFF Research Database (Denmark)

    Liu, Jun

    2017-01-01

    To provide a better understanding of mobile phones as a recruitment tool in collective actions, this study explores the use of mobile phones for mobilizing protest in China. Using in-depth interviews and investigating four cases in which Chinese people employed mobile devices to recruit...... participants for protests, this study observes that mobile communication in China embodies guanxi, the indigenous social tie in Chinese society that introduces reciprocity as an influential facilitator of collective actions. The embedment of reciprocity facilitates the proliferation of mobilizing calls......, legitimizes mobilizing appeals, generates obligations and consolidates solidarity for collective actions. The study concludes with a consideration of the relevance of mobile phones for the embedment of reciprocity in social ties in the mobilization of collective action in authoritarian regimes such as China....

  12. Personal Ties in the Writing of a Doctoral Dissertation

    Directory of Open Access Journals (Sweden)

    Laura Colombo

    2014-07-01

    Full Text Available The problem of low graduation rates at the graduate level has been linked to the challenges of dissertation work. Given that this is a process of “disciplinary enculturation”, where graduate students acquire the ways of being and doing of each discipline, the social relations of doctoral candidates should be analyzed. Several studies have explored the support provided by social ties within academia but have, nevertheless, ignored other spheres. This qualitative study, based on in-depth interviews, explores the personal-sphere social relations in the dissertation writing process from the point of view of doctoral candidates and recent graduates in the fields of Education and Linguistics. Results indicate that the emotional, financial, economic, and academic support offered by these social ties is a necessary, although not in itself, sufficient condition. Some strategies for increasing institutional support to facilitate the process of writing a dissertation are offered.

  13. The Weakening of Kin Ties: Exploring the Need for Life-World Led Interventions

    Directory of Open Access Journals (Sweden)

    Gert Schout

    2018-01-01

    Full Text Available The protective features that families and wider social relationships can have are required to meet the demands of life in contemporary Western societies. Choice and detraditionalization, however; impede this source of solidarity. Family Group Conferencing (FGC and other life-world led interventions have the potential to strengthen primary groups. This paper explores the need for such a social intervention, using insights from sociological and philosophical theories and empirical findings from a case study of the research project ‘FGC in mental health’. This need is understandable considering the weakening of kin ties, the poor qualities of state agencies to mobilise self-care and informal care, its capacity to produce a shift of power from public to private spheres and its capacity to mitigate the co-isolation of individuals, families and communities. A life-world led intervention like FGC with a specific and modest ambition contributes to small-scale solidarity. This ambition is not inclined to establish a broad social cohesion within society but to restore; in terms of the German philosopher Peter Sloterdijk; immunity (protection and solidarity in primary groups, and consequently, resolve issues with those (family, neighbours, colleagues who share a sphere (a situation, a process, a fate.

  14. Linkage of genomic biomarkers to whole organism endpoints in a Toxicity Identification Evaluation (TIE).

    Science.gov (United States)

    Aquatic organisms are exposed to many toxic chemicals and interpreting the cause and effect relationships between occurrence and impairment is difficult. Toxicity Identification Evaluation (TIE) provides a systematic approach for identifying responsible toxicants. TIE relies on ...

  15. The ties between natural gas and oil prices

    International Nuclear Information System (INIS)

    Maisonnier, G.

    2006-01-01

    On the European continent, the price of natural gas is still tied directly and to a great extent to the price of competing energies, especially heavy fuel oil and home heating oil. In other words, the gas market is linked to the oil market. Under the effect of deregulation, this model is likely to change in the future, making a shift like that which took place on the American market in the past. (author)

  16. Effects of gender and tie strength on Twitter interactions

    OpenAIRE

    Kivran-Swaine, Funda; Brody, Samuel; Naaman, Mor

    2013-01-01

    We examine the connection between language, gender, and social relationships, as manifested through communication patterns in social media. Building on an analysis of 78,000 Twitter messages exchanged between 1,753 gender-coded couples, we quantitatively study how the gender composition of conversing users influences the linguistic style apparent in the messages. Using Twitter data, we also model and control for the strength of ties between conversing users. Our findings show that, in line wi...

  17. Managerial ties, market orientation, and export performance : Chinese firms experience.

    OpenAIRE

    Yan, H.; He, X.; Cheng, B.

    2017-01-01

    Managerial ties (MT) are important for business performance by providing firms access to valuable resources and protecting them from opportunism. Drawing on the resource-based view and the market orientation (MO) literature, we argue that (1) MT can help exporting firms to enhance export performance; and (2) MO will help strengthen the positive effect of MT as MO directs the value of MT for improvement of competitive strategy and customer experience with a market focus on generation, dissemin...

  18. Student Mobility and Transnational Social Ties as Factors of Reflexivity

    Directory of Open Access Journals (Sweden)

    Tea Golob

    2018-03-01

    Full Text Available The article seeks to develop and apply new quantitative measurement instruments capable of significantly improving understanding of the relationship between the transnational mobility and transnational social ties of students, along with their reflexive capacities. With a focus on students building their personal networks, educational and professional activities that extend beyond the nation’s borders and organising their day-to-day routines in transnational social spaces, we analyse the role of mobility in their reflexive capacities. Applying a tool that is line with Archer’s theory and indicators to measure reflexivity, and transnational social ties as proposed by Molina et al., we analyse data collected via an on-line survey questionnaire administered to Slovenian students. In addition, students from the Middle East (Lebanon and the USA (Hawai’i are added for comparative purposes. The results of path analysis show the Slovenian students’ mobility as such implies higher scores for meta reflexivity, combined with lower scores for communicative and fractured reflexivity. Further, social transactions reaching beyond one’s physical localities in terms of transnational social ties implies they have higher levels of reflexivity in general.

  19. ERT and Well Data Tie for Nickel Laterite Characterization

    Science.gov (United States)

    Aswad, Sabrianto; Mamela Mais, Difar; Syamsuddin; Wanni

    2018-03-01

    The need of ERT method in nickel latentes exploration can’t be deny. This method have capability to make exploration more effective and efficient. In reality this method still remain ambiguity in its application, especially for geologist and mining expert. These ambiguity related with layer zone determination (limonite, saprolite and bedrock), the same resistivity values in the different zones and determination of bedrock. This paper try to expose interesting fact to overcome this ambiguity by using ERT data and drill data tie. This tie will show characteristic of nickel lateric based on resisitivity value and the contribution of chemistry element for resistivity value. Data ERT was collected by using gradient configuration and well data consist of mayor element and minor element. Tie result showed difference resistivity value in limonite layer influence by Fe, H2O and Ni, where resistivity value from saprolite layer influenced by Fe, H2O, Si02, MgO, Al, Cr, and Ni in certain accumulation. In bedrock layer, almost all drill data did not reach bedrock but only reached the boulder alone, it is supported by the value of the resistivity of rock unserpentinized peridotite which should show a relatively large resistivity value

  20. Work-Family Life Courses and Subjective Wellbeing in the MRC National Survey of Health and Development (the 1946 British birth cohort study).

    Science.gov (United States)

    Lacey, Rebecca; Stafford, Mai; Sacker, Amanda; McMunn, Anne

    Studies investigating the impact of combining paid work and family life on wellbeing have generally used information at one or a limited number of points in the life course, and have mainly focused on women. This study uses multi-channel sequence analysis to characterise work-family life courses across adulthood (ages 16-60) for more than 1500 men and women in the MRC National Study of Health and Development. Wellbeing at age 60-64 was captured by the Satisfaction With Life Scale (SWLS), Warwick-Edinburgh Mental Well Being Scale (WEMWBS) and the General Health Questionnaire (GHQ). A typology of 11 work-family groups was derived, across which there was greater variation for women. Adjusted for socioeconomic position, parental separation, adolescent internalising and externalising disorders, and health, men who had strong ties to paid work but no family had lower life satisfaction than those who combined work with parenthood and marriage (regression coefficient -2.89 (95 %CI: -5.04, -0.74); standard deviation for SWLS = 6.01). Women with weaker ties to paid work had lower life satisfaction, as did women who did not have children, compared to those who combined strong ties to paid work with marriage and parenthood. There were no significant associations between work-family life courses and WEMWBS or GHQ. This study shows that the way in which people combine work and family life may impact life satisfaction in early old age and highlights the need for policies that support combining work and family life.

  1. Kinetic-scale flux rope reconnection in periodic and line-tied geometries

    Science.gov (United States)

    Sauppe, J. P.; Daughton, W.

    2018-01-01

    The collisionless reconnection of two parallel flux ropes driven by both the coalescence and kink instabilities is examined using fully kinetic simulations in periodic and line-tied geometries. The three-dimensional reconnection rate is computed from the maximum of the quasi-potential, Ξ ≡ - ∫ E . d ℓ , where the integral of the electric field is taken along the magnetic field lines across the system. In periodic simulations in which the kink mode is nearly suppressed, reconnection is driven by the coalescence instability, and the peak rate is within 3%-8% of comparable 2D simulations. When a strong kink growth is observed, the peak reconnection rate drops by 10%-25%, and there is a larger drop for lower guide field. With line-tied boundary conditions, the kink instability plays a key role in allowing the flux ropes to interact and partially reconnect. In this limit, the field lines with maximum quasi-potential are associated with a quasi-separatrix layer, and the electric field along these special field lines is supported predominantly by the divergence of the electron pressure tensor. Both of these features, along with the observed reconnection rate, are consistent with recent laboratory experiments on kinetic-scale flux ropes. In kinetic simulations, the non-gyrotropic pressure tensor terms contribute significantly more to the reconnecting electric field than do the gyrotropic terms, while contributions from the electron inertia are significant for field lines adjacent to the quasi-separatrix layer.

  2. The critical manifolds of inhomogeneous bond percolation on bow-tie and checkerboard lattices

    Science.gov (United States)

    Ziff, Robert M.; Scullard, Christian R.; Wierman, John C.; Sedlock, Matthew R. A.

    2012-12-01

    We give a conditional derivation of the inhomogeneous critical percolation manifold of the bow-tie lattice with five different probabilities, a problem that does not appear at first to fall into any known solvable class. Although our argument is mathematically rigorous only on a region of the manifold, we conjecture that the formula is correct over its entire domain, and we provide a non-rigorous argument for this that employs the negative probability regime of the triangular lattice critical surface. We discuss how the rigorous portion of our result substantially broadens the range of lattices in the solvable class to include certain inhomogeneous and asymmetric bow-tie lattices, and that, if it could be put on a firm foundation, the negative probability portion of our method would extend this class to many further systems, including F Y Wu’s checkerboard formula for the square lattice. We conclude by showing that this latter problem can in fact be proved using a recent result of Grimmett and Manolescu for isoradial graphs, lending strong evidence in favor of our other conjectured results. This article is part of ‘Lattice models and integrability’, a special issue of Journal of Physics A: Mathematical and Theoretical in honour of F Y Wu's 80th birthday.

  3. Flavour Democracy in Strong Unification

    CERN Document Server

    Abel, S A; Abel, Steven; King, Steven

    1998-01-01

    We show that the fermion mass spectrum may naturally be understood in terms of flavour democratic fixed points in supersymmetric theories which have a large domain of attraction in the presence of "strong unification". Our approach provides an alternative to the approximate Yukawa texture zeroes of the Froggatt-Nielsen mechanism. We discuss a particular model based on a broken gauged $SU(3)_L\\times SU(3)_R$ family symmetry which illustrates our approach.

  4. [From one generation to another, the threats of the disintegration of social ties].

    Science.gov (United States)

    Blondel, Frédéric; Delzescaux, Sabine

    2010-01-01

    In our modern societies, social ties are reflected in three forms of social relationships which merge with each other: social norms, local social networks and relationships within families. In times of abundance these three forms tend to lead to the same ethical attitude towards elderly and dependent people. Each agrees on the importance of providing a level of care which guarantees elderly people a state of well-being which we would all like to enjoy ourselves. In times of crisis however these three forms tend to fall out of synch with each other as the expectations of one can contradict those of another. What are the risks of such a de-synchronisation in the support given to elderly people?

  5. Management of posterior ankyloglossia and upper lip ties in a tertiary otolaryngology outpatient clinic.

    Science.gov (United States)

    Benoiton, Lara; Morgan, Maggie; Baguley, Katherine

    2016-09-01

    Recent studies have shown an association between ankyloglossia (tongue tie) and upper-lip ties to breastfeeding difficulties. Treatment is commonly multidisciplinary involving lactation consultants and surgical management with tongue tie and upper lip tie release. There is currently limited data looking at posterior ankyloglossia and upper lip ties. Consecutive patients seen at an ENT outpatient clinic for ankyloglossia and upper-lip ties from May 2014-August 2015 were assessed for an outpatient frenotomy. Breastfeeding outcomes were assessed following the procedure. 43 babies were seen and 34 patients had a procedure carried out. Babies ranged from 2 to 20 weeks old with the median age being 6.6 weeks. The most common presenting complaint was latching issues (85%) with mothers' painful nipples being the second (65%). 21 patients (62%) had a tongue tie release, 10 (29%) had both a tongue tie and upper lip tie divided, whereas 3 (9%) had an upper-lip tie alone divided. 29 (85%) of the patients who had a procedure carried out had an immediate improvement in breastfeeding, while 28 (82%) had a continued improvement at 2 weeks follow up. Frenotomy for posterior ankyloglossia and upper lip ties is a simple procedure that can be carried out in an outpatient setting with apparent immediate benefit. Otolaryngologists are likely to have an increasing role to play in the evaluation and management of ankyloglossia and upper lip ties in babies with breastfeeding difficulties. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  6. How crosscutting weak ties are established : The case of Muslims in Europe

    NARCIS (Netherlands)

    Damstra, A.; Tillie, J.

    2016-01-01

    Building on the work of Granovetter [1973. “The Strength of Weak Ties.” American Journal of Sociology 78 (6): 1360–1380.], weak ties are assumed to play a vital role in processes of integration. In this paper, the focus lies on weak ties that cut across ethnic boundaries, connecting Muslim

  7. Identifying Weak Ties from Publicly Available Social Media Data in an Event

    DEFF Research Database (Denmark)

    Prakash Gupta, Jayesh; Menon, Karan; Kärkkäinen, Hannu

    2016-01-01

    The concept of weak ties was introduced by Granovetter through the seminal paper titled "Strength of weak ties". Since then the role of weak ties in general and their specific role as occupying the structural hole has been explored in many different fields. In this study, we identify actual...

  8. 77 FR 21620 - Notice of the Buy America Waiver Request for Vossloh 101-LV Concrete Ties

    Science.gov (United States)

    2012-04-10

    ... the Buy America Waiver Request for Vossloh 101-LV Concrete Ties AGENCY: Federal Railroad... concrete ties, which contain certain components not manufactured in the United States. In furtherance of... concrete ties. FRA has received this request from the four States for the following projects: (a) The...

  9. 78 FR 37236 - Prestressed Concrete Steel Rail Tie Wire From China, Mexico, and Thailand

    Science.gov (United States)

    2013-06-20

    ... imports from China, Mexico, and Thailand of prestressed concrete steel rail tie wire, provided for in... threatened with material injury by reason of LTFV imports of prestressed concrete steel rail tie wire from... USITC Publication 4397 (June 2013), entitled Prestressed Concrete Steel Rail Tie Wire from China, Mexico...

  10. South Asian Families in Diaspora

    DEFF Research Database (Denmark)

    Singla, Rashmi

    2008-01-01

      South Asian Family in Diaspora: Retreat from marriage, myth or reality?   This paper proposes to explore the dynamics of close ties in the South Asian families in the Nordic countries, especially Denmark through intimate partnership formation in the context of late modern societal discourse...... discourse. The interplay between institutionalised individualism and interconnectedness is studied through vertical and horizontal relationships within the socio-cultural psychological framework combining intersectionality conceptualisation with life course perspectives. The findings point to a complex...

  11. Ties That Bind: Creating and sustaining community-academic partnerships

    Directory of Open Access Journals (Sweden)

    Kynna N. Wright

    2011-11-01

    Full Text Available Growing interest among academics and health professionals in finding new ways to study and address complex health and social problems has manifested in recent years with increasing community demands for research and program implementation that is community-based, rather than merely community placed. In the United States, community-based participatory research (CBPR, with its emphasis on the creation and use of community-university or community-academic partnerships, is the prevailing paradigm to address these complex problems, especially those concerning racial/ethnic disparities in health and health care. While the need to strengthen the relationship between researchers and the community has been recognised, often from the viewpoint of the university partner, discussions on sustainability of partnerships have been few. The aim of this paper is to share reflections, through the eyes of the community members, on the core elements that tie community and academic members together and the challenges in understanding and nurturing those ties so that the community-academic partnership is sustained over time, and to offer possible recommendations for sustainability. This article speaks from the community’s perspective and reflects on the vital elements/components that tie together community-university partnerships and the challenges that may occur when trying to sustain and grow the partnership. It is based on a research CBPR study that was conducted to (1 evaluate the functioning and future sustainability of the community-university partnership of the Community Child Health Network Study Los Angeles (CCHN-LA community-university partnership, and (2 evaluate the experience and beliefs of the current CCHN-LA community-university partnership members in their understanding of current functioning. Keywords Community-academic partnerships; sustainability; challenges; solutions

  12. Tongue-tie, from embriology to treatment: a literature review

    Directory of Open Access Journals (Sweden)

    Maria Dezio

    2015-03-01

    Full Text Available The aim of this review is to create a complete analysis about tongue-tie (or short lingual frenum or ankyloglossia according to the most important works published in literature. The analysis allowed us to do a complete evaluation of this problem, from embriology to the therapeutic approach we could use today, focusing our attention on laser-assisted therapy. This review is based on the research on the PubMed Database (www.ncbi.nlm.nih.gov of studies about lingual frenum written in English between January 1980 and May 2014. The keywords inserted were “lingual frenum”, “frenectomy”, “laser therapy”. We have analyzed: case series, case reports, clinical studies, and also literature reviews in which embryology, physiology, diagnosis and treatment of ankyloglossia were described. We excluded laboratory studies, studies based on animal tests and studies about patients with particular syndromes in which we can also find tongue-tie. The selection criteria allowed us to select 42 articles. The treatment options for the releasing of the frenum are surgically represented by frenotomy (i.e. simple horizontal cut of this training and frenectomy (i.e. removal. In both cases, the intervention on the short lingual frenum is simple, short-lasting, and without particular complications. Furthermore, this kind of treatment can be carried out with different devices: with the typical cold blade scalpel or by the use of laser, a new method that shows more advantages over the prior art. Laser-assisted therapy permits to intervene on newborns (from 0 to 20 days, when there are breastfeeding problems without total anesthesia and suture. The Er:YAG, CO2 laser (according to literature data and Diode laser (according to our experience are advantageous, safe and effective in tongue-tie treatment.

  13. Testing strong interaction theories

    International Nuclear Information System (INIS)

    Ellis, J.

    1979-01-01

    The author discusses possible tests of the current theories of the strong interaction, in particular, quantum chromodynamics. High energy e + e - interactions should provide an excellent means of studying the strong force. (W.D.L.)

  14. Eagle Hats Mini-Technology Integration Experiment (TIE)

    Science.gov (United States)

    2005-07-01

    code base more portable to other Lisp dialects such as OpenMCL, LispWorks, Franz Lisp, and SBCL. The Hats mini-TIE Community Mechanics We have...is taken from stories in newspaper texts and is encoded in in the standard GB-scheme. Franz Kafka’s The Castle in the original German comprised the...the Chinese corpus, 32% of the Roma-ji corpus, 17% of the Orwell corpus, and 10% of the Kafka corpus, so it is not surprising that the algorithm

  15. Experimental Investigation of Tension Stiffening in RC Ties

    Directory of Open Access Journals (Sweden)

    Aleksandr Sokolov

    2016-01-01

    Full Text Available The increasing application of high-performance materials in civil engineering led to the development of reinforced concrete (RC structures with reduced cross sections and increased spans. In such structures serviceability limit state often becomes the governing condition of the design. Present study investigates the deformation behaviour of high-strength RC ties reinforced with high-grade bars. Experimental investigation was carried out measuring the postcracking stiffness of the specimens at high strain levels. It was found that, despite the reduction in stiffness, a considerable part of the average tensile stresses were carried by the concrete at the advanced loading stages, thus effectively stiffening the RC member.

  16. Markkinointisuunnitelma Oy Runoilijan tie s/s Tarjanteelle

    OpenAIRE

    Suojala, Jaana

    2012-01-01

    Tämän opinnäytetyön tehtävä on markkinointisuunnitelman laatiminen s/s Tarjanteelle ja Runoilijan tie Oy:lle. Tarve työlle tuli kun toimin purjehduskauden 2011 ravintola-vastaavana laivassa. Kesän aikana kävi ilmi selkeitä puutteita varsinkin markkinoinnissa. Näihin puutteisiin on tässä opinnäytetyössä etsitty ratkaisuja teoreettisista teoksista sekä suorittamalla asiakaskysely e-lomakkeella. Lomakkeella tiedusteltiin useita eri asioita markkinoinnista, mainonnasta sekä myös palvelusta yleens...

  17. Aalborg Inverter - A New Type of “Buck in Buck, Boost in Boost” Grid-Tied Inverter

    DEFF Research Database (Denmark)

    Wu, Weimin; Ji, Junhao; Blaabjerg, Frede

    2015-01-01

    This paper presents a new family of high efficiency dc/ac grid-tied inverter with a wide variation of input dc voltage. It is a “boost in boost, buck in buck” inverter, meaning that only one power stage works at high frequency in order to achieve minimum switching loss. The minimum voltage drop...... is larger than the magnitude of the ac voltage, it is a voltage-source inverter, and on the contrary it is current-source inverter in the other mode. A 220 V/50 Hz/ 2000 W prototype has been constructed. Simulations and experiments show that it has a good control and system performance....

  18. Family pediatrics: report of the Task Force on the Family.

    Science.gov (United States)

    Schor, Edward L

    2003-06-01

    cultural beliefs about how society and family life ought to be. The process of formulating recommendations for pediatric practice, public policy, professional education, and research requires reaching consensus on some core values and principles about family life and family functioning as they affect children, knowing that some philosophic disagreements will remain unresolved. The growing multicultural character of the country will likely heighten awareness of our diversity. Many characteristics of families have changed during the past 3 to 5 decades. Families without children younger than 18 years have increased substantially, and they are now the majority. The average age at marriage has increased, and a greater proportion of births is occurring to women older than 30 years. Between 1970 and 2000, the proportion of children in 2-parent families decreased from 85% to 69%, and more than one quarter (26%) of all children live with a single parent, usually their mother. Most of this change reflects a dramatic increase in the rate of births to unmarried women that went from 5.3% in 1960 to 33.2% in 2000. Another factor in this change is a slowly decreasing but still high divorce rate that is roughly double what it was in the mid-1950s. Family income is strongly related to children's health, and the financial resources that families have available are closely tied to changes in family structure. Family income in real dollars has trended up for many decades, but the benefits have not been shared equally. For example, the median income of families with married parents has increased by 146% since 1970, but female-headed households have experienced a growth of 131%. More striking is that in 2000, the median income of female-headed households was only 47% of that of married-couple families and only 65% of that of families with 2 married parents in which the wife was not employed. Not surprising, the proportion of children who live in poverty is approximately 5 times greater for

  19. Circulating Angiopoietin-2 and Its Soluble Receptor Tie-2 Concentrations Are Related to Renal Function in Two Population-Based Cohorts

    DEFF Research Database (Denmark)

    Hennings, Anna; Hannemann, Anke; Rettig, Rainer

    2016-01-01

    the associations between renal function and serum Ang-2 or serum Tie-2 concentrations in the general population. METHODS: Data of 3081 and 4088 subjects from two population-based studies, the Study of Health in Pomerania (SHIP-1) and SHIP-Trend, were used. Renal function was assessed by serum creatinine, cystatin...... weak U-shaped associations between serum creatinine concentrations or eGFR(crea) and serum Ang-2 concentrations. With respect to uACR a strong positive association with serum Ang-2 concentrations was revealed. CONCLUSION: Serum Ang-2 concentrations are strongly associated with sensitive parameters...... not detect the same strong relations between serum creatinine and eGFR(crea) with serum Ang-2 concentration. Additionally, significant association of serum Tie-2 concentrations with cystatin C and eGFR(cys) were detected....

  20. Tongue-tie division to treat breastfeeding difficulties: our experience.

    Science.gov (United States)

    Sharma, S D; Jayaraj, S

    2015-10-01

    To assess the benefits of frenotomy on breastfeeding in infants, and determine the influence of age. A telephone questionnaire of all patients diagnosed with tongue-tie over 12 months was conducted pre-intervention and 1-month post-intervention. The Infant Breastfeeding Assessment Tool was used to assess breastfeeding. Of 54 infants diagnosed with tongue-tie, 78 per cent of mothers participated in the survey. Eighty-six per cent of patients underwent frenotomy, with no surgical complications. In the frenotomy group, 81 per cent of mothers reported improvement in breastfeeding, versus 17 per cent in the non-surgical group (p = 0.0074). In the frenotomy group, the mean (±standard deviation) Infant Breastfeeding Assessment Tool score was 3.33 ± 1.51 pre-intervention, versus 9.19 ± 2.44 post-intervention (p = 0.0001). In the non-surgical intervention group, the mean score (±standard deviation) was 4.17 ± 0.75 pre-intervention, versus 6.00 ± 1.73 post-intervention (p = 0.16). For infants who underwent frenotomy, there was a reported improvement in 94 per cent of those aged less than 30 days, versus 68 per cent in infants aged over 30 days (p = 0.092). Frenotomy is a safe, short procedure that improves breastfeeding outcomes, and is best performed at an early age.

  1. Pediatric tongue-tie division: indications, techniques and patient satisfaction.

    Science.gov (United States)

    Klockars, Tuomas; Pitkäranta, Anne

    2009-10-01

    To study the characteristics and outcome of paediatric tongue-tie division. Retrospective analyses of 317 paediatric tongue-tie divisions (frenotomy or frenuloplasty). Based on a questionnaire returned by 159 (51%) of patients (or guardians) the most common indication was speech/articulation problems (64%). Other indications included restricted movement (18%) and lactation/nutrition problems (8%). 84% of patients (or guardians) reported benefit from the operation. The initial surgical technique was frenotomy (no or local anaesthesia) for 34%, frenotomy (general anaesthesia) for 16%, frenuloplasty (no or local anaesthesia) for 5% and frenuloplasty (general anaesthesia) for 46% of the patients. Almost one-third of children treated with frenotomy under no or local anaesthesia needed re-operation compared to one out of 181 (0.6%) treated with frenotomy or frenuloplasty under general anaesthesia. There were no postoperative complications. Frenotomy under no or local anaesthesia is safe and cost-effective, but one-third of children need re-operation. Adequate division of the frenulum is more important than the technique (frenuloplasty vs. frenotomy) used and seems to be easier to achieve under general anaesthesia.

  2. Traditional Tie-dye Handicrafts and Modern Design Concept Combined

    Directory of Open Access Journals (Sweden)

    Ju Fengfan

    2017-09-01

    Full Text Available Tie-dyeing is the traditional handicraft in china, and this traditional handicraft is the accumulation of people's wisdom and the survival of the skills.Due to rapid economic development in recent decades, spurred in pursuit of excessive consumption of fast, fast fashion, industrial production gradually replaced the traditional handicraft, resulting in many of the traditional handicraft industry is facing a crisis.How does the traditional tie-dye craft blend with modern lifestyles?It has become a pressing issue.And in modern society, people pay more attention to practicality, cultural and spiritual combination. there is a certain regional and differences in traditional culture and it aesthetic point of view, inevitably conflicting with the modern design concept.But this contradiction can be reconciled, we should be in the traditional level of culture to be in-depth research and application, based on the research of the traditional design and analysis from refining, refactoring, transforming in line with modern aesthetic standards.

  3. Diversity of social ties in scientific collaboration networks

    Science.gov (United States)

    Shi, Quan; Xu, Bo; Xu, Xiaomin; Xiao, Yanghua; Wang, Wei; Wang, Hengshan

    2011-11-01

    Diversity is one of the important perspectives to characterize behaviors of individuals in social networks. It is intuitively believed that diversity of social ties accounts for competition advantage and idea innovation. However, quantitative evidences in a real large social network can be rarely found in the previous research. Thanks to the availability of scientific publication records on WWW; now we can construct a large scientific collaboration network, which provides us a chance to gain insight into the diversity of relationships in a real social network through statistical analysis. In this article, we dedicate our efforts to perform empirical analysis on a scientific collaboration network extracted from DBLP, an online bibliographic database in computer science, in a systematical way, finding the following: distributions of diversity indices tend to decay in an exponential or Gaussian way; diversity indices are not trivially correlated to existing vertex importance measures; authors of diverse social ties tend to connect to each other and these authors are generally more competitive than others.

  4. Poor textural image tie point matching via graph theory

    Science.gov (United States)

    Yuan, Xiuxiao; Chen, Shiyu; Yuan, Wei; Cai, Yang

    2017-07-01

    Feature matching aims to find corresponding points to serve as tie points between images. Robust matching is still a challenging task when input images are characterized by low contrast or contain repetitive patterns, occlusions, or homogeneous textures. In this paper, a novel feature matching algorithm based on graph theory is proposed. This algorithm integrates both geometric and radiometric constraints into an edge-weighted (EW) affinity tensor. Tie points are then obtained by high-order graph matching. Four pairs of poor textural images covering forests, deserts, bare lands, and urban areas are tested. For comparison, three state-of-the-art matching techniques, namely, scale-invariant feature transform (SIFT), speeded up robust features (SURF), and features from accelerated segment test (FAST), are also used. The experimental results show that the matching recall obtained by SIFT, SURF, and FAST varies from 0 to 35% in different types of poor textures. However, through the integration of both geometry and radiometry and the EW strategy, the recall obtained by the proposed algorithm is better than 50% in all four image pairs. The better matching recall improves the number of correct matches, dispersion, and positional accuracy.

  5. Organizing learning processes on risks by using the bow-tie representation

    Energy Technology Data Exchange (ETDEWEB)

    Chevreau, F.R. [Ecole des Mines de Paris, 06904 Sophia-Antipolis (France)]. E-mail: chevreau@cindy.ensmp.fr; Wybo, J.L. [Ecole des Mines de Paris, 06904 Sophia-Antipolis (France)]. E-mail: wybo@cindy.ensmp.fr; Cauchois, D. [Process Safety Department, Sanofi-Aventis, Site de Production de Vitry sur Seine, 9 Quai Jules Guesdes, 94400 Vitry sur Seine (France)]. E-mail: didier.cauchois@sanofi-aventis.com

    2006-03-31

    The Aramis method proposes a complete and efficient way to manage risk analysis by using the bow-tie representation. This paper shows how the bow-tie representation can also be appropriate for experience learning. It describes how a pharmaceutical production plant uses bow-ties for incident and accident analysis. Two levels of bow-ties are constructed: standard bow-ties concern generic risks of the plant whereas local bow-ties represent accident scenarios specific to each workplace. When incidents or accidents are analyzed, knowledge that is gained is added to existing local bow-ties. Regularly, local bow-ties that have been updated are compared to standard bow-ties in order to revise them. Knowledge on safety at the global and at local levels is hence as accurate as possible and memorized in a real time framework. As it relies on the communication between safety experts and local operators, this use of the bow-ties contributes therefore to organizational learning for safety.

  6. Organizing learning processes on risks by using the bow-tie representation

    International Nuclear Information System (INIS)

    Chevreau, F.R.; Wybo, J.L.; Cauchois, D.

    2006-01-01

    The Aramis method proposes a complete and efficient way to manage risk analysis by using the bow-tie representation. This paper shows how the bow-tie representation can also be appropriate for experience learning. It describes how a pharmaceutical production plant uses bow-ties for incident and accident analysis. Two levels of bow-ties are constructed: standard bow-ties concern generic risks of the plant whereas local bow-ties represent accident scenarios specific to each workplace. When incidents or accidents are analyzed, knowledge that is gained is added to existing local bow-ties. Regularly, local bow-ties that have been updated are compared to standard bow-ties in order to revise them. Knowledge on safety at the global and at local levels is hence as accurate as possible and memorized in a real time framework. As it relies on the communication between safety experts and local operators, this use of the bow-ties contributes therefore to organizational learning for safety

  7. Determinants of family planning uptake among men in Ibadan, Nigeria

    African Journals Online (AJOL)

    Background: Adoption of family planning by men or their spouses many times is influenced by men particularly in developing countries. This is despite evidence that reduction of maternal mortality and morbidity is tied to family planning use. In order to design programmes that enhance adoption of family planning methods ...

  8. Networked Identities: Understanding Different Types of Social Organisation and Movements Between Strong and Weak Ties in Networked Environments

    OpenAIRE

    Ryberg, Thomas; Larsen, Malene Charlotte

    2006-01-01

    In this article we take up a critique of the concept of Communities of Practice voiced by several authors, who suggest that network may provide a better metaphor to understand social forms of organisation and learning. This critique we situate within a broader theoretical movement in socio-cultural learning theories. From this we identify some theoretical and analytical challenges to the network metaphor, which we explore and elaborate through an analysis of a Danish social networking site.

  9. Students’ delinquency and correlates with strong and weaker ties : A study of students’ networks in Dutch high schools

    NARCIS (Netherlands)

    Baerveldt, Chris; Rossem, Ronan van; Vermande, Marjolein; Weerman, Frank

    2004-01-01

    The goal of the present study was to investigate three issues in the current debate on youth delinquency: (1) Whether the level of delinquency of adolescents is negatively correlated with the quality of her/his personal networks (as stated by the social inability model) or not (as stated by the

  10. Orbits in weak and strong bars

    CERN Document Server

    Contopoulos, George

    1980-01-01

    The authors study the plane orbits in simple bar models embedded in an axisymmetric background when the bar density is about 1% (weak), 10% (intermediate) or 100% (strong bar) of the axisymmetric density. Most orbits follow the stable periodic orbits. The basic families of periodic orbits are described. In weak bars with two Inner Lindblad Resonances there is a family of stable orbits extending from the center up to the Outer Lindblad Resonance. This family contains the long period orbits near corotation. Other stable families appear between the Inner Lindblad Resonances, outside the Outer Lindblad Resonance, around corotation (short period orbits) and around the center (retrograde). Some families become unstable or disappear in strong bars. A comparison is made with cases having one or no Inner Lindblad Resonance. (12 refs).

  11. Role of Strong versus Weak Networks in Small Business Growth in an Emerging Economy

    Directory of Open Access Journals (Sweden)

    M. Kamil Kozan

    2014-02-01

    Full Text Available The study tests whether strong rather than weak ties account for small business growth in Turkey. Data were collected by means of a questionnaire filled out by the owners of small firms operating in four cities. Growth is comprised of two main areas, production expansion and knowledge acquisition. Results show that strong ties are positively related to both types of growth. In contrast, loose ties have no effect on small business growth in either area. This finding is attributed to the influence of the collectivistic nature of the mainstream Turkish culture, where owners of small businesses are likely to rely on in-groups rather than out-groups for advice and for financial support. Implications of relative absence of weak ties for small business growth and innovation in emerging economies are discussed. The findings suggest that culture should be included as a contingency variable in future studies of network strength and growth relationship. The paper also discusses the possible moderating role of affective and cognition-based trust in the relation of strong and weak ties to small business growth.

  12. 78 FR 29325 - Prestressed Concrete Steel Rail Tie Wire From Mexico, the People's Republic of China, and...

    Science.gov (United States)

    2013-05-20

    ...] Prestressed Concrete Steel Rail Tie Wire From Mexico, the People's Republic of China, and Thailand: Initiation... of prestressed concrete steel rail tie wire (``PC tie wire'') from Mexico, the PRC, and Thailand... Prestressed Concrete Steel Rail Tie Wire from the PRC, Mexico, and Thailand, filed on April 23, 2013 (the...

  13. Representation of Women With Industry Ties in Ophthalmology.

    Science.gov (United States)

    Reddy, Ashvini K; Bounds, Gregory W; Bakri, Sophie J; Gordon, Lynn K; Smith, Justine R; Haller, Julia A; Thorne, Jennifer E

    2016-06-01

    Women in ophthalmology are growing in number and have made strides in traditional metrics of professional achievement. Professional ties to industry represent another potential means of career advancement, recognition, and income. To report the representation of women among ophthalmologists receiving industry remuneration for research, consulting, honoraria, grants, royalties, and faculty/speaker roles. In this observational, retrospective study, the Centers for Medicare and Medicaid Services Open Payments database for payments to ophthalmologists by biomedical companies was reviewed for representation, median payments, and mean payments by women and men for industry relationships in 2013 and 2014. The analysis was performed from July 2015 to November 2015. The primary outcome measures were percentage representation of women vs men overall and in industry research, consulting, speaking roles, royalties and licenses, grants, services other than consulting, and honoraria. Secondary outcome measures included mean and median payments from industry to female vs male ophthalmologists. In 2013, 4164 of 21 380 (19.5%) ophthalmologists were women, and of 1204 ophthalmologists analyzed for industry payments, 176 (4.2%) women had industry ties compared with 1028 (6%) men (P women were $11 419 compared with $20 957 for men (P = .001), and median payments to women were $3000 compared with $4787 for men (P = .007). In 2013, women were underrepresented among ophthalmologists receiving industry payments for research (49 of 462 [10.6%]), consulting (96 of 610 [15.7%]), honoraria (3 of 47 [6.4%]), industry grants (1 of 7 [14.3%]), royalties and licenses (1 of 13 [7.7%]), and faculty/speaker roles (2 of 48 [4.2%]). In 2014, 4352 of 21 531 (20.2%) of ophthalmologists were women. Of 1518 ophthalmologists analyzed for industry payments, 255 (6%) women had industry ties compared with 1263 (7.4%) men (P women were $14 848 compared with $30 513 for men (P = .004

  14. Strong interactions - quark models

    International Nuclear Information System (INIS)

    Goto, M.; Ferreira, P.L.

    1979-01-01

    The variational method is used for the PSI and upsilon family spectra reproduction from the quark model, through several phenomenological potentials, viz.: linear, linear plus coulomb term and logarithmic. (L.C.) [pt

  15. Transnational Ties and Past-Year Major Depressive Episodes among Latino Immigrants

    Science.gov (United States)

    Alcántara, Carmela; Chen, Chih-Nan; Alegría, Margarita

    2014-01-01

    Objective Latino immigrants live in an increasingly global world where maintaining contact with kin in the home country is easier than ever. We examined: (a) the annual distribution of remittances burden (percentage of remittances/household income) and visits to the home country; (b) the association of these transnational ties with odds of a past-year major depressive episode (MDE); and (c) moderation by Latino sub-ethnicity or gender. Methods We conducted weighted logistic regression analyses with the Latino immigrant subsample (N=1614) of the National Latino and Asian American Study. Results Mexican and Other Latino immigrants had greater remittances burden than Puerto Rican migrants. Cuban immigrants made fewer visits back home than Puerto Rican migrants. After adjustment for socio-demographics and pre-migration psychiatric history, a percentage increase in remittances burden decreased odds of MDE (OR=0.80 [95%CI:0.67–.0.98]), whereas visits back home increased odds of MDE (OR=1.04 [95%CI:1.01–1.06]). Latino sub-ethnicity was not a significant moderator. Visits back home were more strongly linked to depression among women than men. Conclusions The distribution of transnational ties differs by Latino subgroup, although its association with depression is similar across groups. Monetary giving in the form of remittances might promote a greater sense of self-efficacy, social integration, and caregiving for relatives back home that positively affect mental health. Visits back home, especially for women, might signal social stress from strained relationships with kin/spouses/children left behind, or increased caregiving demands that negatively affect mental health. Clinical practice with immigrants should routinely assess the social resources and strains that fall outside national borders. PMID:25090146

  16. Group Ties Protect Cognitive Health by Promoting Social Identification and Social Support.

    Science.gov (United States)

    Haslam, Catherine; Cruwys, Tegan; Milne, Matilda; Kan, Chi-Hsin; Haslam, S Alexander

    2016-03-01

    Social relationships are protective of cognitive health as we age and recent findings show that social group ties (e.g., with community and peer groups) are especially important. The present research examines this relationship further to explore (a) the contribution of group, relative to interpersonal, ties and (b) underlying mechanism. Two cross-sectional survey studies were conducted. Study 1 was conducted online (N = 200) and Study 2 involved face-to-face interviews (N = 42). The findings confirmed group ties as a stronger predictor of cognitive health than individual ties. It also supported our proposed sequential mediation model suggesting that the benefits of group ties arise from their capacity to enhance a sense of shared social identification and this, in turn, provides the basis for effective social support. Both studies provided evidence consistent with claims that group ties were especially beneficial because they cultivated social identification that provided the foundation for social support. © The Author(s) 2015.

  17. Importance of tie strengths in the prisoner's dilemma game on social networks

    International Nuclear Information System (INIS)

    Xu, Bo; Liu, Lu; You, Weijia

    2011-01-01

    Though numerous researches have shown that tie strengths play a key role in the formation of collective behavior in social networks, little work has been done to explore their impact on the outcome of evolutionary games. In this Letter, we studied the effect of tie strength in the dynamics of evolutionary prisoner's dilemma games by using online social network datasets. The results show that the fraction of cooperators has a non-trivial dependence on tie strength. Weak ties, just like previous researches on epidemics and information diffusion have shown, play a key role by the maintenance of cooperators in evolutionary prisoner's dilemma games. -- Highlights: → Tie strength is used to measure heterogeneous influences of different pairs of nodes. → Weak ties play a role in maintaining cooperation in prisoner's dilemma games. → Micro-dynamics of nodes are illustrated to explain the conclusion.

  18. Studi Tentang Political Tie, Pengaruhnya Terhadap Keputusan Pemberian Kredit Bank di Indonesia

    Directory of Open Access Journals (Sweden)

    Elisa Tjondro

    2012-01-01

    Full Text Available This study uses bank loan data to examine the effect of (political tie between the company and the government to on the assessment of companies financial leverage and profitability in the bank lending decisions in Indonesia. The numbers of samples are 1465 observations. This study uses moderated regression analysis (MRA. The study finds that a political tie affect corporate profitability assessment in bank lending decisions. Firms with lower profitability receive larger bank loan because their political tie (rent-seeking hypothesis. However, this study inds that a political tie does not affect the assessment of financial leverage in bank's lending decisions. This finding also supports Faccio (2010, Fisman (2001, and Backman (2001. Indonesia condition which has a weak institutional regulation and high information asymmetry is beneficial for companies that have a political tie. This leads to more trusted political tie as an indicator of the profitability.

  19. Strengthening Weak Ties through On-line Gaming

    DEFF Research Database (Denmark)

    Sudzina, Frantisek; Razmerita, Liana; Kirchner, Kathrin

    On-line gaming became widespread in the last couple of years. The aim of the research presented in the paper is to figure out to what extent does game playing helps to strengthen weak ties and what additional factors influence this process. The approach is rather exploratory – some factors...... are grounded in theory, some are new. These factors are age, gender, place of origin, number of their Facebook connections (friends in Facebook terminology), the amount of time they are on Facebook, the amount of time they keep the Facebook site open, the amount of time they play on-line games, and the reasons...... for starting to play on-line games. Regarding the latter, we chose to focus only on escapist reasons....

  20. Transnational ties and mental health of Caribbean immigrants.

    Science.gov (United States)

    Murphy, Eleanor J; Mahalingam, Ramaswami

    2004-10-01

    Immigration scholars have demonstrated the increasing importance of transnational activities among contemporary immigrants. While much of the previous research has emphasized social and economic outcomes, very little attention has been paid to psychological well-being or mental health. Using a community sample of West Indian immigrants, we developed an empirical measure of the nature and frequency of transnational practices. The resulting Transnationalism Scale is examined for psychometric properties using an exploratory principal components factor analysis, and bivariate correlations with pre-existing measures of psychological well-being, perceived social support, and ethnic identity. Results reveal five factors, some of which are significantly correlated with measures of psychological well-being, social support, and ethnic identity. Findings suggest that transnationalism, as a construct, is a valid measure for this population. We argue that transnational ties shape various aspects of immigrants' lives.

  1. Hands Tied with Bag Full of Books in Suicidal Hanging.

    Science.gov (United States)

    Sikary, Asit Kumar; Behera, Chittaranjan; Murty, Om Prakash; Rautji, Ravi

    2016-01-01

    Hanging deaths associated with binding of limbs, masking of a face, and gagging are always suspicious. In suicidal hanging, the victim uses these added techniques to prevent him from backing out of his decision and to ensure death. However, binding of limbs and adding extra weight to the suspension in hanging are not reported. Herein, we report a case where the victim tied a bag containing books weighing 7 kg (15.4 lbs) to both his hands during hanging. The forensic specialist must be aware of the unusual presentation of suicidal hanging which may suggest foul play. The manner of death must be established after detailed analysis of circumstantial evidence, information obtained from the witnesses, complete autopsy, and toxicological examination. © 2015 American Academy of Forensic Sciences.

  2. A short note on how tied fights affect cortisol levels.

    Science.gov (United States)

    Cooper, Edwin L; Ngo, Kathy T

    2013-09-01

    Previous work exploring the interrelationships between sex steroids (e.g. androgens, testosterones and 11-ketotestosterones) and social behavior in teleosts suggest that mirror-elicited aggression in cichlid fish may not trigger a hormonal response. Using the Mozambique tilapia (Oreochromis mossambicus) to analyze immune responses as a result of social stress, we measured levels of cortisol and melatonin using Enzyme-Linked Immunosorbent Assay (ELISA) assays. In this work, we demonstrated that cortisol concentrations are significantly lower yet the levels of melatonin remain unchanged in tilapia that are fighting their mirror image. Our results suggested that in tied fights, certain hormone levels remain unchanged (e.g. androgens) due to the lack of melatonin induction. © 2012 Wiley Publishing Asia Pty Ltd, ISZS and IOZ/CAS.

  3. Return of the Bear Russia’s Ties with Former Soviet Allies in Latin America

    Science.gov (United States)

    2016-03-01

    RUSSIA’S TIES WITH FORMER SOVIET ALLIES IN LATIN AMERICA by David M. Cox March 2016 Thesis Advisor: Thomas Bruneau Second Reader...DATES COVERED Master’s Thesis 4. TITLE AND SUBTITLE RETURN OF THE BEAR? RUSSIA’S TIES WITH FORMER SOVIET ALLIES IN LATIN AMERICA 5. FUNDING NUMBERS...the Cold War to Russian ties with Cuba and Nicaragua today, this thesis finds that Russia’s reengagement with former Soviet allies in Latin America

  4. Reducing Electromagnetic Interference in a Grid Tied Single Phase Power Inverter

    Science.gov (United States)

    2016-09-01

    ELECTROMAGNETIC INTERFERENCE IN A GRID TIED SINGLE PHASE POWER INVERTER by Jason Hassan Valiani September 2016 Thesis Advisor: Giovanna Oriti...3. REPORT TYPE AND DATES COVERED Master’s thesis 4. TITLE AND SUBTITLE REDUCING ELECTROMAGNETIC INTERFERENCE IN A GRID TIED SINGLE PHASE POWER...The addition of a passive filter proved to minimize the conducted EMI for a single -phase grid-tied inverter. 14. SUBJECT TERMS single -phase

  5. Investigation of Bending Test Procedures for Engineered Polymer Composite Railroad Ties

    Science.gov (United States)

    2016-12-01

    ER D C/ CE RL C R- 16 -6 Investigation of Bending Test Procedures for Engineered Polymer Composite Railroad Ties Co ns tr uc tio n En...Test Procedures for Engineered Polymer Composite Railroad Ties Claire G. Ball CTL Group 5400 Old Orchard Road Skokie, IL 60077 Final report...conducting in- vestigations to help develop and evaluate engineered polymer composite railroad ties since 1993. Recent efforts, through funding and

  6. Frenotomy for tongue-tie in newborn infants.

    Science.gov (United States)

    O'Shea, Joyce E; Foster, Jann P; O'Donnell, Colm Pf; Breathnach, Deirdre; Jacobs, Susan E; Todd, David A; Davis, Peter G

    2017-03-11

    Tongue-tie, or ankyloglossia, is a condition whereby the lingual frenulum attaches near the tip of the tongue and may be short, tight and thick. Tongue-tie is present in 4% to 11% of newborns. Tongue-tie has been cited as a cause of poor breastfeeding and maternal nipple pain. Frenotomy, which is commonly performed, may correct the restriction to tongue movement and allow more effective breastfeeding with less maternal nipple pain. To determine whether frenotomy is safe and effective in improving ability to feed orally among infants younger than three months of age with tongue-tie (and problems feeding).Also, to perform subgroup analysis to determine the following.• Severity of tongue-tie before frenotomy as measured by a validated tool (e.g. Hazelbaker Assessment Tool for Lingual Frenulum Function (ATLFF) scores frenotomy (≤ 10 days of age; > 10 days to three months of age).• Severity of feeding difficulty (infants with feeding difficulty affecting weight gain (as assessed by infant's not regaining birth weight by day 14 or falling off centiles); infants with symptomatic feeding difficulty but thriving (greater than birth weight by day 14 and tracking centiles). We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase and CINAHL up to January 2017, as well as previous reviews including cross-references, expert informants and journal handsearching. We searched clinical trials databases for ongoing and recently completed trials. We applied no language restrictions. Randomised, quasi-randomised controlled trials or cluster-randomised trials that compared frenotomy versus no frenotomy or frenotomy versus sham procedure in newborn infants. Review authors extracted from the reports of clinical trials data regarding clinical outcomes including infant feeding, maternal nipple pain, duration of breastfeeding, cessation of breastfeeding, infant pain, excessive bleeding, infection at the site of frenotomy, ulceration at the site of

  7. In Harm’s Way: Family Separation, Immigration Enforcement Programs and Security on the US-Mexico Border

    Directory of Open Access Journals (Sweden)

    Jeremy Slack

    2015-03-01

    Full Text Available The Consequence Delivery System (CDS is a suite of border and immigration enforcement programs designed to increase the penalties associated with unauthorized migration in order to convince people not to return (Rosenblum 2013. Despite its inauguration in 2011, many aspects of the CDS are not new. CDS does however, mark a shift from the deterrent strategy that, in the 1990s that relied heavily on the dangers of the natural terrain to dissuade unauthorized border crossers, to one that actively punishes, incarcerates, and criminalizes them. This article presents findings from the Migrant Border Crossing Study, a random sample survey of 1,100 recently deported migrants in six cities in Mexico conducted between 2009 and 2012. It examines the demographics and family ties of deportees, their experiences with immigration enforcement practices and programs under the CDS, and how these programs have reshaped contemporary migration and deportation along the US-Mexico border. The article covers programs such as criminal prosecutions of illegal entries under Operation Streamline, and the Alien Transfer and Exit Program (ATEP or lateral repatriation program which returns immigrants to different locations from where they illegally entered. In relationship to these programs, it considers issues of due process and treatment of deportees in US custody. It also examines interior enforcement under Secure Communities, which, during the study period, comprised part of the overarching border security plan, and screened virtually everybody arrested in the United States against immigration databases.The article concludes that these programs do not have a strong deterrent effect. Instead, immigration enforcement has led to a “caging effect” over the past two decades which has disrupted seasonal migration flows, increased familial and social ties to the United States, and decreased the probability of returning to Mexico once in the United States. The development of

  8. Strongly Correlated Topological Insulators

    Science.gov (United States)

    2016-02-03

    Strongly Correlated Topological Insulators In the past year, the grant was used for work in the field of topological phases, with emphasis on finding...surface of topological insulators. In the past 3 years, we have started a new direction, that of fractional topological insulators. These are materials...in which a topologically nontrivial quasi-flat band is fractionally filled and then subject to strong interactions. The views, opinions and/or

  9. Family Ties and Leaving Home for College: Recent Findings and Implications.

    Science.gov (United States)

    Kenny, Maureen E.

    1987-01-01

    Recent research with first year college students indicated that emotional closeness to parents was associated with social and intellectual competence during the leaving home period. Secure parental attachment fostered self-confidence, willingness to explore the environment, and the development of social skills. Students describing themselves as…

  10. Using Group Work to Rebuild Family and Community Ties among Displaced African Men

    Science.gov (United States)

    Akinsulure-Smith, Adeyinka M.

    2012-01-01

    The number of refugees and asylum seekers admitted to the United States has grown, with significant numbers arriving from sub-Saharan Africa. Given this reality, it is important that mental health professionals are equipped to provide culturally relevant services. This article describes the development and implementation of a group treatment model…

  11. Family Ties to Health Program: A Randomized Intervention to Improve Vegetable Intake in Children

    Science.gov (United States)

    Tabak, Rachel G.; Tate, Deborah F.; Stevens, June; Siega-Riz, Anna Maria; Ward, Dianne S.

    2012-01-01

    Objective: Evaluate a home-based intervention targeted toward parents to improve vegetable intake in preschool-aged children. Methods: Four-month feasibility study of home-based intervention consisting of 4 tailored newsletters and 2 motivational phone calls compared to control; 4 children's books for the control group; and measured pre and post…

  12. Family ties? Afrikaner nationalism, pan-Netherlandic nationalism and neo-Calvinist "Christian nationalism"

    OpenAIRE

    Furlong, Patrick J

    2015-01-01

    This study, building on longstanding debates on “German” national socialist (“Nazi”) and “Dutch” Calvinist influences on Afrikaner nationalism, examines the latter’s intersecting relationships with Dutch neo-Calvinist “Christian nationalism” and pan-Netherlandic or Diets nationalism (embracing Dutch, Flemings and Afrikaners). Like similarly-minded Dutch (or Flemings), Afrikaners most drawn to Diets nationalism were often those most attracted to German-inspired Romantic volks...

  13. The VEGF system and tie-2 are spatio-temporal expressed during tayassu placentation

    DEFF Research Database (Denmark)

    Miglino, M.A.; Santos, T.C.; Papa, P.C.

    Objectives: The vascular endothelial growth factor (VEGF) is one of the most important vascular mitogens, while the angiotensin receptor Tie-2 binds to the angiopoietin and stabilizes newly formed vessels. We therefore wanted to localize VEGF and its receptors VEGF-R1, VEGF-R2 and the Tie-2 recep...

  14. The Bright Side and Dark Side of Embedded Ties In Business-to-Business Innovation

    NARCIS (Netherlands)

    C.S. Noordhoff (Corine); K. Kyriakopoulos (Kyriakos); C. Moorman (Christina); P. Pauwels (Pieter); B.G.C. Dellaert (Benedict)

    2011-01-01

    textabstractWhile the number and importance of joint innovation projects between suppliers and their customers continue to rise, the literature has yet to resolve a key question—do embedded ties with customers help or hurt supplier innovation? Drawing on both the tie strength and knowledge

  15. The bright side and dark side of embedded ties in business-to-business innovation

    NARCIS (Netherlands)

    C.S. Noordhoff (Corine); K. Kyriakopoulos (Kyriakos); C. Moorman (Christina); P. Pauwels (Pieter); B.G.C. Dellaert (Benedict)

    2011-01-01

    textabstractAlthough the number and importance of joint innovation projects between suppliers and their customers continue to rise, the literature has yet to resolve a key question: Do embedded ties with customers help or hurt supplier innovation? Drawing on both the tie strength and knowledge

  16. The use of nylon cable ties to repair rib fractures in neonatal foals

    OpenAIRE

    Downs, Chris; Rodgerson, Dwayne

    2011-01-01

    Commercially available nylon cable ties were used as a method of internal fixation for displaced rib fractures in 8 equine neonates. The procedure was effective, well-tolerated, rapid, and inexpensive. The use of nylon cable ties as internal fixation for displaced rib fractures in foals is an effective surgical procedure.

  17. Effect of Wheel/Rail Loads on Concrete Tie Stresses and Rail Rollover.

    Science.gov (United States)

    2011-09-21

    As a result of vertical and lateral wheel/rail forces, high contact stresses can develop at the interface between the rail base and tie. Under certain conditions, these stresses can exceed the strength of the concrete tie and result in deterioration ...

  18. The use of nylon cable ties to repair rib fractures in neonatal foals

    Science.gov (United States)

    Downs, Chris; Rodgerson, Dwayne

    2011-01-01

    Commercially available nylon cable ties were used as a method of internal fixation for displaced rib fractures in 8 equine neonates. The procedure was effective, well-tolerated, rapid, and inexpensive. The use of nylon cable ties as internal fixation for displaced rib fractures in foals is an effective surgical procedure. PMID:21629427

  19. Neural dynamics of social tie formation in economic decision-making.

    Science.gov (United States)

    Bault, Nadège; Pelloux, Benjamin; Fahrenfort, Johannes J; Ridderinkhof, K Richard; van Winden, Frans

    2015-06-01

    The disposition for prosocial conduct, which contributes to cooperation as arising during social interaction, requires cortical network dynamics responsive to the development of social ties, or care about the interests of specific interaction partners. Here, we formulate a dynamic computational model that accurately predicted how tie formation, driven by the interaction history, influences decisions to contribute in a public good game. We used model-driven functional MRI to test the hypothesis that brain regions key to social interactions keep track of dynamics in tie strength. Activation in the medial prefrontal cortex (mPFC) and posterior cingulate cortex tracked the individual's public good contributions. Activation in the bilateral posterior superior temporal sulcus (pSTS), and temporo-parietal junction was modulated parametrically by the dynamically developing social tie-as estimated by our model-supporting a role of these regions in social tie formation. Activity in these two regions further reflected inter-individual differences in tie persistence and sensitivity to behavior of the interaction partner. Functional connectivity between pSTS and mPFC activations indicated that the representation of social ties is integrated in the decision process. These data reveal the brain mechanisms underlying the integration of interaction dynamics into a social tie representation which in turn influenced the individual's prosocial decisions. © The Author (2014). Published by Oxford University Press. For Permissions, please email: journals.permissions@oup.com.

  20. A Proposed Performance-Based System for Teacher Interactive Electronic Continuous Professional Development (TIE-CPD)

    Science.gov (United States)

    Razak, Rafiza Abdul; Yusop, Farrah Dina; Idris, Aizal Yusrina; Al-Sinaiyah, Yanbu; Halili, Siti Hajar

    2016-01-01

    The paper introduces Teacher Interactive Electronic Continuous Professional Development (TIE-CPD), an online interactive training system. The framework and methodology of TIE-CPD are designed with functionalities comparable with existing e-training systems. The system design and development literature offers several methodology and framework…

  1. Network ties and entrepreneurial orientation : Innovative performance of SMEs in a developing country

    NARCIS (Netherlands)

    Gunawan, Theresia; Jacob, J.; Duijsters, Geert

    This study investigates the role of intra-cluster ties, extra-cluster ties, and entrepreneurial orientation in shaping firms’ innovative performance. We conduct our analysis on a primary data set of 120 small and medium enterprises located in the Cibaduyut footwear-manufacturing cluster, Indonesia.

  2. Polycyclic aromatic hydrocarbon migration from creosote-treated railway ties into ballast and adjacent wetlands

    Science.gov (United States)

    Kenneth M. Brooks

    2004-01-01

    Occasionally, creosote-treated railroad ties need to be replaced, sometimes in sensitive environments such as wetlands. To help determine if this is detrimental to the surrounding environment, more information is needed on the extent and pattern of creosote, or more specifically polycyclic aromatic hydrocarbon (PAH), migration from railroad ties and what effects this...

  3. Finite element analyses of continuous filament ties for masonry applications: final report for the Arquin Corporation

    Energy Technology Data Exchange (ETDEWEB)

    Quinones, Sr., Armando [Arquin Corporation, La Luz, NM (United States); Bibeau, Tiffany A. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Ho, Clifford Kuofei

    2006-06-01

    Finite-element analyses were performed to simulate the response of a hypothetical masonry shear wall with and without continuous filament ties to various lateral loads. The loads represented three different scenarios: (1) 100 mph wind, (2) explosive attack, and (3) an earthquake. In addition, a static loading analysis and cost comparison were performed to evaluate optimal materials and designs for the spacers affixed to the filaments. Results showed that polypropylene, ABS, and polyethylene (high density) were suitable materials for the spacers based on performance and cost, and the short T-spacer design was optimal based on its performance and functionality. Results of the shear-wall loading simulations revealed that simulated walls with the continuous filament ties yielded factors of safety that were at least ten times greater than those without the ties. In the explosive attack simulation (100 psi), the simulated wall without the ties failed (minimum factor of safety was less than one), but the simulated wall with the ties yielded a minimum factor of safety greater than one. Simulations of the walls subject to lateral loads caused by 100 mph winds (0.2 psi) and seismic events with a peak ground acceleration of 1 ''g'' (0.66 psi) yielded no failures with or without the ties. Simulations of wall displacement during the seismic scenarios showed that the wall with the ties resulted in a maximum displacement that was 20% less than the wall without the ties.

  4. Strong Arcwise Connectedness

    OpenAIRE

    Espinoza, Benjamin; Gartside, Paul; Kovan-Bakan, Merve; Mamatelashvili, Ana

    2012-01-01

    A space is `n-strong arc connected' (n-sac) if for any n points in the space there is an arc in the space visiting them in order. A space is omega-strong arc connected (omega-sac) if it is n-sac for all n. We study these properties in finite graphs, regular continua, and rational continua. There are no 4-sac graphs, but there are 3-sac graphs and graphs which are 2-sac but not 3-sac. For every n there is an n-sac regular continuum, but no regular continuum is omega-sac. There is an omega-sac ...

  5. Abortion: Strong's counterexamples fail

    DEFF Research Database (Denmark)

    Di Nucci, Ezio

    2009-01-01

    This paper shows that the counterexamples proposed by Strong in 2008 in the Journal of Medical Ethics to Marquis's argument against abortion fail. Strong's basic idea is that there are cases--for example, terminally ill patients--where killing an adult human being is prima facie seriously morally......'s scenarios have some valuable future or admitted that killing them is not seriously morally wrong. Finally, if "valuable future" is interpreted as referring to objective standards, one ends up with implausible and unpalatable moral claims....

  6. Integrating Micro-level Interactions with Social Network Analysis in Tie Strength Research

    DEFF Research Database (Denmark)

    Torre, Osku; Gupta, Jayesh Prakash; Kärkkäinen, Hannu

    2017-01-01

    strength measurements may not reflect the true social connections of individuals accurately enough, and 2) many different methods to gather data from social media are not applicable anymore due to different data openness issues. In addition, we have only little empirical knowledge of the actual tie...... of tie strength based on reciprocal interaction from publicly available Facebook data, and suggest that this approach could work as a basis for further tie strength studies. Our approach makes use of weak tie theory, and enables researchers to study micro-level interactions (i.e. discussions, messages......, relationships) with large-scale social network analysis (SNA). This study provides a way to find relevant actors from publicly available data in the context of tie strengthening process, and answers how to take this stream of research closer to computational social science....

  7. Internationalization and Networks in Small and Medium-Sized Enterprises: the role of ethnic ties

    Directory of Open Access Journals (Sweden)

    Marco Antonio Seifriz

    2014-05-01

    Full Text Available The international insertion of small and medium-sized enterprises (SME has attracted academic attention with the emergence of new internationalization theories based on the network approach. There is evidence that social networks based on descent ties contribute to the international integration of firms, particularly small ones. The quantitative cross-sectional study conducted with 71 SME affiliated with the Business Association of Blumenau, city marked by German immigration, sought to test the predictive role of descent ties (content of ties and strength of ties in the degree of SME internationalization. The results suggest that only the strength of ties (frequency of contacts with the country of descent contributes to explaining the degree of internationalization. Limitations of sample size require caution in generalizing the results.

  8. Transnational Corporate Ties: A Synopsis of Theories and Empirical Findings

    Directory of Open Access Journals (Sweden)

    Michael Nollert

    2015-08-01

    Full Text Available In general, corporations are not isolated actors in an economic “war of all against all” but members of corporate networks of global reach. Although the literature on globalization emphasizes the increasing economic power of these networks and postulates the formation of a transnational capitalist class, there is still a lack of empirical findings. The article starts with a review of theoretical perspectives (resource dependence, social capital, coordination of markets, financial hegemony, class hegemony, inner circle, and transnational capitalist class which focuses on the functions and structures of corporate interlocks at the national and the transnational level. The subsequent section offers an outline of empirical studies concerning transnational corporate networks. These analyses of corporate ties (interlocking directorates, financial participations and policy group affiliations suggest the emergence of transnational economic elites whose members, however, have not lost their national identity. In the final section, the theoretical perspectives will be assessed and some prospects are sketched out. Finally, it will be argued that the disintegration of the world society, which is considerably driven by rent-seeking corporate networks, can only be restrained if a potential global regulatory agency will be anchored in a post-Washington consensus.

  9. Tying Pulsar Timing in Radio and X-ray

    Science.gov (United States)

    Majid, W.

    2017-10-01

    Millisecond pulsars are a class of radio pulsars with extremely stable rotations. The excellent timing stability of millisecond pulsars can be used to study a wide variety of astrophysical phenomena in both radio and X-ray. We have developed a precision pulsar timing capability at NASA's Deep Space Network (DSN), which is deployed on large 70-m dishes. This program is now capable of producing precision pulsar timing of a large number of millisecond pulsars in radio. Often though there is a need to tie the pulse profiles of pulsars from radio to shorter wavelengths, for instance in X-ray timing campaigns. This poses special challenges that include the knowledge of absolute time in both detectors, pulse profile frequency evolution, dispersion measure monitoring, and systematic offsets across the frequency spectrum. We have recently initiated a high cadence timing program of the Crab pulsar to provide essential timing ephemerides for NASA's NICER mission. In this presentation, we will describe some of the challenges, including some early results of this campaign. This research was performed at the Jet Propulsion Laboratory, California Institute of Technology, under the Research and Technology Development Program, under a contract with the National Aeronautics and Space Administration.

  10. Tying dark matter to baryons with self-interactions.

    Science.gov (United States)

    Kaplinghat, Manoj; Keeley, Ryan E; Linden, Tim; Yu, Hai-Bo

    2014-07-11

    Self-interacting dark matter (SIDM) models have been proposed to solve the small-scale issues with the collisionless cold dark matter paradigm. We derive equilibrium solutions in these SIDM models for the dark matter halo density profile including the gravitational potential of both baryons and dark matter. Self-interactions drive dark matter to be isothermal and this ties the core sizes and shapes of dark matter halos to the spatial distribution of the stars, a radical departure from previous expectations and from cold dark matter predictions. Compared to predictions of SIDM-only simulations, the core sizes are smaller and the core densities are higher, with the largest effects in baryon-dominated galaxies. As an example, we find a core size around 0.3 kpc for dark matter in the Milky Way, more than an order of magnitude smaller than the core size from SIDM-only simulations, which has important implications for indirect searches of SIDM candidates.

  11. Design of Compact Trapezoidal Bow-Tie Chipless RFID Tag

    Directory of Open Access Journals (Sweden)

    Lei Xu

    2015-01-01

    Full Text Available This paper presents a novel compact design of a low cost fully printable slot-loaded bowtie chipless RFID tag. The tag consists of two trapezoidal metallic patches loaded with multiple slot resonators. Slots with similar size or adjacent frequencies are loaded alternately on two bow-tie patches to double the number of data bits within the UWB frequency band without increasing the mutual coupling between slots. A coding capacity of 12 bits is obtained with 12 slots within a reasonable size of 35 mm × 33 mm. RCS of the tag has been given by simulation. Measurements have been done using a bistatic radar configuration in the frequency domain and transmission coefficient is measured. The agreement between the simulation and measurement validates this new concept of design. This tag has high data capacity and low cost and can be directly printed on product such as personal ID, credit cards, paper, and textile because it needs only one conductive layer.

  12. A strong comeback

    International Nuclear Information System (INIS)

    Marier, D.

    1992-01-01

    This article presents the results of a financial rankings survey which show a strong economic activity in the independent energy industry. The topics of the article include advisor turnover, overseas banks, and the increase in public offerings. The article identifies the top project finance investors for new projects and restructurings and rankings for lenders

  13. Can space ties on board GNSS satellites replace terrestrial ties in the implementation of Terrestrial Reference Frames?

    Science.gov (United States)

    Bruni, Sara; Zerbini, Susanna; Altamimi, Zuheir; Rebischung, Paul; Errico, Maddalena; Santi, Efisio

    2016-04-01

    SLR techniques via the so-called space ties, instead of relying on the terrestrial ties evaluated with ground measurement campaigns at co-located ITRF sites.

  14. Strong Electroweak Symmetry Breaking

    CERN Document Server

    Grinstein, Benjamin

    2011-01-01

    Models of spontaneous breaking of electroweak symmetry by a strong interaction do not have fine tuning/hierarchy problem. They are conceptually elegant and use the only mechanism of spontaneous breaking of a gauge symmetry that is known to occur in nature. The simplest model, minimal technicolor with extended technicolor interactions, is appealing because one can calculate by scaling up from QCD. But it is ruled out on many counts: inappropriately low quark and lepton masses (or excessive FCNC), bad electroweak data fits, light scalar and vector states, etc. However, nature may not choose the minimal model and then we are stuck: except possibly through lattice simulations, we are unable to compute and test the models. In the LHC era it therefore makes sense to abandon specific models (of strong EW breaking) and concentrate on generic features that may indicate discovery. The Technicolor Straw Man is not a model but a parametrized search strategy inspired by a remarkable generic feature of walking technicolor,...

  15. Plasmons in strong superconductors

    International Nuclear Information System (INIS)

    Baldo, M.; Ducoin, C.

    2011-01-01

    We present a study of the possible plasmon excitations that can occur in systems where strong superconductivity is present. In these systems the plasmon energy is comparable to or smaller than the pairing gap. As a prototype of these systems we consider the proton component of Neutron Star matter just below the crust when electron screening is not taken into account. For the realistic case we consider in detail the different aspects of the elementary excitations when the proton, electron components are considered within the Random-Phase Approximation generalized to the superfluid case, while the influence of the neutron component is considered only at qualitative level. Electron screening plays a major role in modifying the proton spectrum and spectral function. At the same time the electron plasmon is strongly modified and damped by the indirect coupling with the superfluid proton component, even at moderately low values of the gap. The excitation spectrum shows the interplay of the different components and their relevance for each excitation modes. The results are relevant for neutrino physics and thermodynamical processes in neutron stars. If electron screening is neglected, the spectral properties of the proton component show some resemblance with the physical situation in high-T c superconductors, and we briefly discuss similarities and differences in this connection. In a general prospect, the results of the study emphasize the role of Coulomb interaction in strong superconductors.

  16. Improving Family and Community Engagement through Sharing Data. Briefing Paper

    Science.gov (United States)

    Arellano, Brenda; Baldwin, Marion; LaTurner, Jason; Mabus, Jesse; Times, Chris; Wade, Sally M.

    2012-01-01

    It is clear that families and communities play key roles in student achievement and school improvement efforts. Across the nation, states are leading initiatives to improve communication and engagement with these stakeholders through effective data sharing. Key points highlighted in this brief include: (1) Maintaining close ties with family and…

  17. Mediated intimacy in families

    DEFF Research Database (Denmark)

    Stougaard, Malthe Kirkhoff

    2006-01-01

    Mediating intimacy between children and their parents is still limited investigated and at the same time, we find that, emerging technologies are about to change and affect the way we interact with each other. In this paper, we report from an empirical study where we investigated the social...... with other types of intimate relations such as strong-tie intimacy (couples cohabiting). However, we also identified several issues of intimacy unique to the special relation between children and their parents. These unique acts of intimacy propose challenges when designing technologies for mediated intimacy...

  18. Waves in strong centrifugal fields: dissipationless gas

    Science.gov (United States)

    Bogovalov, S. V.; Kislov, V. A.; Tronin, I. V.

    2015-04-01

    Linear waves are investigated in a rotating gas under the condition of strong centrifugal acceleration of the order 106 g realized in gas centrifuges for separation of uranium isotopes. Sound waves split into three families of the waves under these conditions. Dispersion equations are obtained. The characteristics of the waves strongly differ from the conventional sound waves on polarization, velocity of propagation and distribution of energy of the waves in space for two families having frequencies above and below the frequency of the conventional sound waves. The energy of these waves is localized in rarefied region of the gas. The waves of the third family were not specified before. They propagate exactly along the rotational axis with the conventional sound velocity. These waves are polarized only along the rotational axis. Radial and azimuthal motions are not excited. Energy of the waves is concentrated near the wall of the rotor where the density of the gas is largest.

  19. Tongue-tie and breastfeeding in newborns-mothers' perspective.

    Science.gov (United States)

    Riskin, Arieh; Mansovsky, Michal; Coler-Botzer, Tzviya; Kugelman, Amir; Shaoul, Ron; Hemo, Miri; Wolff, Leslie; Harpaz, Sarit; Olchov, Zhana; Bader, David

    2014-11-01

    This study explored clinical implications of tongue-tie (TT) on breastfeeding from the mothers' perspective and evaluated the assistance provided. This was a single-center observational study using a structured survey. All newborns with TT born in 2005-2010 were identified; two controls without TT were assigned for each. Mothers were interviewed using a uniform structured questionnaire regarding breastfeeding experience, challenges, lactation consultation, and frenotomy, if performed. One hundred eighty-three TT mothers and 314 controls were interviewed. Although the overall rates of breastfeeding problems in the first month were similar (59% vs. 52%, respectively), TT mothers reported significantly more problems with latching, prolonged breastfeeding, and infant's exhaustion during feedings, but not pain or sore nipples. Breastfeeding rates at 6 months were similar. TT mothers more frequently used pumped breastmilk to supplement breastfeeding. Significantly more TT mothers sought consultation after discharge, and a significantly greater proportion of them felt that lactation consultation helped. Eighty-seven percent of the mothers were aware of their children's TT, yet only 50% associated it with breastfeeding problems. Of the TT infants at 2 years of age or older, 11.9% were reported to have speech problems. The possibility of frenotomy was mentioned to 69% of mothers, and it was performed in 35% of cases. Procedure satisfaction was generally poor, except for when done to solve breastfeeding problems. TT infants had significantly more breastfeeding problems in the first month, but similar rates and durations of breastfeeding. Early diagnosis and lactation consultation may assist mother-infant dyads substantially. Mothers whose infants underwent frenotomies for breastfeeding more frequently found the procedure alleviated breastfeeding problems.

  20. Resilience by solidary ties (Resiliencia por lazos de solidaridad

    Directory of Open Access Journals (Sweden)

    Antonio Alaminos

    2015-07-01

    Full Text Available This article considers an empirical approach to the relationships among three well known concepts: “Benevolence” (Schwartz, Solidarity and Resilience ("Subjective wellbeing scale" - SWB. The first concept refers to cultural values, the second one to social networks and the third to the ability to recover from crisis. The measurement of solidarity has been done from the point of view of supportive ties. The baseline hypothesis considers that the presence of a high value in Benevolence contributes to the involvements in solidarity networks. Participation in supportive relationships facilitates recovery from personal crisis. Using data from the European Social Survey (ESS6, we conclude from this structural analysis that the resilience reflected in a society is partly a consequence of the supportive networks shaped by the presence of benevolence values. | Tras introducir teóricamente los conceptos de "Benevolencia" (Schwartz, "Lazos de solidaridad" y "Resiliencia", se presenta su operativización en la Encuesta Social Europea de 2012. La hipótesis de partida plantea que la presencia de un valor alto en Benevolencia influye en la participación en interacciones solidarias y que la participación en redes solidarias facilita el recobrarse de las crisis. A partir de estos datos, y considerando varias sociedades europeas, se han testado dos modelos alternativos, según el efecto de la Benevolencia y los lazos de solidaridad sobre la resiliencia. Se concluye que existe un efecto directo de los valores de Benevolencia sobre la Solidaridad, y de esta sobre la Resiliencia. La influencia de los valores de Benevolencia sobre la Resiliencia se establece de forma indirecta mediante la activación de relaciones solidarias.

  1. Breastfeeding difficulties and oral cavity anomalies: The influence of posterior ankyloglossia and upper-lip ties.

    Science.gov (United States)

    Pransky, Seth M; Lago, Denise; Hong, Paul

    2015-10-01

    Oral cavity anomalies may contribute to breastfeeding problems. The objective of this study was to describe our experience in a high-volume breastfeeding difficulty clinic with a focus on posterior ankyloglossia and upper-lip ties. A retrospective review of patients from a dedicated breastfeeding difficulty clinic from January 2014 to December 2014 was performed. Those identified to have ankyloglossia and/or upper-lip ties underwent release procedures. Subjective breastfeeding changes were documented afterwards. Of the 618 total patients, 290 (47%) had anterior ankyloglossia, 120 (19%) had posterior ankyloglossia, and 14 (2%) had upper-lip tie. Some patients had both anterior ankyloglossia and upper lip-tie (6%), or posterior ankyloglossia and upper-lip tie (5%). For those with anterior ankyloglossia, 78% reported some degree of improvement in breastfeeding after frenotomy. For those with posterior ankyloglossia, 91% reported some degree of improvement in breastfeeding after frenotomy. Upper lip-tie release also led to improved breastfeeding (100%). Anterior and posterior ankyloglossia and upper-lip tie, or combinations thereof, were commonly recognized in our study population. Many newborns, however, also had no oral cavity anomalies. Although causation cannot be implied, these oral cavity anomalies may contribute to breastfeeding difficulties in some cases. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  2. IVF, same-sex couples and the value of biological ties

    DEFF Research Database (Denmark)

    Di Nucci, Ezio

    2016-01-01

    Ought parents, in general, to value being biologically tied to their children? Is it important, in particular, that both parents be biologically tied to their children? I will address these fundamental questions by looking at a fairly new practice within IVF treatments, so-called IVF-with-ROPA (R......Ought parents, in general, to value being biologically tied to their children? Is it important, in particular, that both parents be biologically tied to their children? I will address these fundamental questions by looking at a fairly new practice within IVF treatments, so-called IVF......-with-ROPA (Reception of Oocytes from Partner), which allows lesbian couples to 'share motherhood', with one partner providing the eggs while the other becomes pregnant. I believe that IVF-with-ROPA is, just like other IVF treatments, morally permissible, but here I argue that the increased biological ties which IVF......-with-ROPA allows for do not have any particular value beside the satisfaction of a legitimate wish, because there is no intrinsic value in a biological tie between parents and children; further, I argue that equality within parental projects cannot be achieved by redistributing biological ties....

  3. Recovery From Radiation-induced Bone Marrow Damage by HSP25 Through Tie2 Signaling

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Hae-June [Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of); Kwon, Hee-Chung [Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of); Chung, Hee-Yong [College of Medicine, Hanyang University, Seoul (Korea, Republic of); Lee, Yoon-Jin [Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of); Lee, Yun-Sil, E-mail: yslee0425@ewha.ac.kr [College of Pharmacy and Division of Life and Pharmaceutical Sciences, Ewha Woman' s University, Seoul (Korea, Republic of)

    2012-09-01

    Purpose: Whole-body radiation therapy can cause severe injury to the hematopoietic system, and therefore it is necessary to identify a novel strategy for overcoming this injury. Methods and Materials: Mice were irradiated with 4.5 Gy after heat shock protein 25 (HSP25) gene transfer using an adenoviral vector. Then, peripheral blood cell counts, histopathological analysis, and Western blotting on bone marrow (BM) cells were performed. The interaction of HSP25 with Tie2 was investigated with mouse OP9 and human BM-derived mesenchymal stem cells to determine the mechanism of HSP25 in the hematopoietic system. Results: HSP25 transfer increased BM regeneration and reduced apoptosis following whole-body exposure to ionizing radiation (IR). The decrease in Tie2 protein expression that followed irradiation of the BM was blocked by HSP25 transfer, and Tie2-positive cells were more abundant among the BM cells of HSP25-transferred mice, even after IR exposure. Following systemic RNA interference of Tie2 before IR, HSP25-mediated radioprotective effects were partially blocked in both mice and cell line systems. Stability of Tie2 was increased by HSP25, a response mediated by the interaction of HSP25 with Tie2. IR-induced tyrosine phosphorylation of Tie2 was augmented by HSP25 overexpression; downstream events in the Tie2 signaling pathway, including phosphorylation of AKT and EKR1/2, were also activated. Conclusions: HSP25 protects against radiation-induced BM damage by interacting with and stabilizing Tie2. This may be a novel strategy for HSP25-mediated radioprotection in BM.

  4. Strong-coupling approximations

    International Nuclear Information System (INIS)

    Abbott, R.B.

    1984-03-01

    Standard path-integral techniques such as instanton calculations give good answers for weak-coupling problems, but become unreliable for strong-coupling. Here we consider a method of replacing the original potential by a suitably chosen harmonic oscillator potential. Physically this is motivated by the fact that potential barriers below the level of the ground-state energy of a quantum-mechanical system have little effect. Numerically, results are good, both for quantum-mechanical problems and for massive phi 4 field theory in 1 + 1 dimensions. 9 references, 6 figures

  5. Strong interaction and QFD

    International Nuclear Information System (INIS)

    Ebata, T.

    1981-01-01

    With an assumed weak multiplet structure for bosonic hadrons, which is consistent with the ΔI = 1/2 rule, it is shown that the strong interaction effective hamiltonian is compatible with the weak SU(2) x U(1) gauge transformation. Especially the rho-meson transforms as a triplet under SU(2)sub(w), and this is the origin of the rho-photon analogy. It is also shown that the existence of the non-vanishing Cabibbo angle is a necessary condition for the absence of the exotic hadrons. (orig.)

  6. Escapist Motives for On-line Gaming and Strengthening of Weak Ties

    DEFF Research Database (Denmark)

    Sudzina, Frantisek; Razmerita, Liana

    Due to advances of technology including faster and ubiquitously accessible Internet connection, on-line gaming have grown tremendously in the last couple of years. The aim of this paper is to investigate whether escapist motives for playing games are linked to strengthening of weak ties through on-line...... gaming. The research investigates Facebook and other on-line games separately. A surprising result is that while most of the investigated escapist motives are positively correlated with strengthening of weak ties, the mundane breaking motive is negatively correlated with strengthening of weak ties....

  7. The Role of Social Ties in Word-of-Mouth Effectiveness

    DEFF Research Database (Denmark)

    Martensen, Anne Duhr; Grønholdt, Lars

    2015-01-01

    This article develops consumer segmentation based on the strength of social ties in word-of-mouth (WOM) communication and examines the influence of WOM on behavioral attitude and intention in these segments. Data were collected through a survey among receivers of retail banking WOM. A cluster...... analysis identifies four WOM receiver segments based on the tie strength between the sender and the receiver, and the cluster solution is successfully validated. Each segment shows distinct patterns of tie strength and influence on the receiver’s perception of WOM, behavioral attitude and intention....... Moreover, the WOM influence is examined for customers as well as non-customers....

  8. Square and bow-tie configurations in the cyclic evasion problem

    Science.gov (United States)

    Arnold, M. D.; Golich, M.; Grim, A.; Vargas, L.; Zharnitsky, V.

    2017-05-01

    Cyclic evasion of four agents on the plane is considered. There are two stationary shapes of configurations: square and degenerate bow-tie. The bow-tie is asymptotically attracting while the square is of focus-center type. Normal form analysis shows that square is nonlinearly unstable. The stable manifold consists of parallelograms that all converge to the square configuration. Based on these observations and numerical simulations, it is conjectured that any non-parallelogram non-degenerate configuration converges to the bow-tie.

  9. Escapist Motives for On-line Gaming and Strengthening of Weak Ties

    DEFF Research Database (Denmark)

    Sudzina, Frantisek; Razmerita, Liana

    Due to advances of technology including faster and ubiquitously accessible Internet connection, on-line gaming have grown tremendously in the last couple of years. The aim of this paper is to investigate whether escapist motives for playing games are linked to strengthening of weak ties through on......-line gaming. The research investigates Facebook and other on-line games separately. A surprising result is that while most of the investigated escapist motives are positively correlated with strengthening of weak ties, the mundane breaking motive is negatively correlated with strengthening of weak ties....

  10. Strong Coupling Holography

    CERN Document Server

    Dvali, Gia

    2009-01-01

    We show that whenever a 4-dimensional theory with N particle species emerges as a consistent low energy description of a 3-brane embedded in an asymptotically-flat (4+d)-dimensional space, the holographic scale of high-dimensional gravity sets the strong coupling scale of the 4D theory. This connection persists in the limit in which gravity can be consistently decoupled. We demonstrate this effect for orbifold planes, as well as for the solitonic branes and string theoretic D-branes. In all cases the emergence of a 4D strong coupling scale from bulk holography is a persistent phenomenon. The effect turns out to be insensitive even to such extreme deformations of the brane action that seemingly shield 4D theory from the bulk gravity effects. A well understood example of such deformation is given by large 4D Einstein term in the 3-brane action, which is known to suppress the strength of 5D gravity at short distances and change the 5D Newton's law into the four-dimensional one. Nevertheless, we observe that the ...

  11. Aalborg Inverter - A new type of “Buck in Buck, Boost in Boost” Grid-tied Inverter

    DEFF Research Database (Denmark)

    Wu, Weimin; Blaabjerg, Frede

    2013-01-01

    This paper presents a new family of high efficiency DC/AC grid-tied inverter with a wide variation of input DC voltage. It is a kind of “Boost in Boost, Buck in Buck” inverter, meaning that only one power stage works at the high frequency to achieve the minimum switching loss. Furthermore......, the minimum filtering inductance in the power loop is achieved to reduce the conduction power loss whether in “Boost” or “Buck” mode. In theory, it can achieve higher efficiency than other inverters under the same condition of input DC voltage. The principle of operation is fully illustrated through...... the analysis on the equivalent circuits of a “three-level” single-phase inverter. Simulations show it has good control performance....

  12. 78 FR 57619 - Prestressed Concrete Steel Rail Tie Wire From Mexico, Thailand, and the People's Republic of...

    Science.gov (United States)

    2013-09-19

    ...] Prestressed Concrete Steel Rail Tie Wire From Mexico, Thailand, and the People's Republic of China... prestressed concrete steel rail tie wire from Mexico, Thailand, and the People's Republic of China. See Prestressed Concrete Steel Rail Tie Wire From Mexico, the People's Republic of China, and Thailand: Initiation...

  13. LIGO: The strong belief

    CERN Multimedia

    Antonella Del Rosso

    2016-01-01

    Twenty years of designing, building and testing a number of innovative technologies, with the strong belief that the endeavour would lead to a historic breakthrough. The Bulletin publishes an abstract of the Courier’s interview with Barry Barish, one of the founding fathers of LIGO.   The plots show the signals of gravitational waves detected by the twin LIGO observatories at Livingston, Louisiana, and Hanford, Washington. (Image: Caltech/MIT/LIGO Lab) On 11 February, the Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo collaborations published a historic paper in which they showed a gravitational signal emitted by the merger of two black holes. These results come after 20 years of hard work by a large collaboration of scientists operating the two LIGO observatories in the US. Barry Barish, Linde Professor of Physics, Emeritus at the California Institute of Technology and former Director of the Global Design Effort for the Internat...

  14. Moving with the Military: Race, Class, and Gender Differences in the Employment Consequences of Tied Migration

    National Research Council Canada - National Science Library

    Cooney, Richard

    2003-01-01

    .... Previous research demonstrates negative employment and earnings consequences for tied migrants, but little is known about how the impact of such mobility differs by the gender, race, and class of the trailing spouse. The U.S...

  15. Fiber Optic Tamper Indicating Enclosure (TIE); A Case Study in Authentication

    Energy Technology Data Exchange (ETDEWEB)

    Anheier, Norman C.; Benz, Jacob M.; Tanner, Jennifer E.; Westman, Matthew P.

    2015-07-15

    A robust fiber optic-based tamper-indicating enclosure (TIE) has been developed by PNNL through funding by the National Nuclear Security Administration Office of Nuclear Verification over the past few years. The objective of this work is to allow monitors to have confidence in both the authenticity and integrity of the TIE and the monitoring equipment inside, throughout the time it may be located at a host facility. Incorporating authentication features into the design were the focus of fiscal year 2014 development efforts. Throughout the development process, modifications have been made to the physical TIE design based on lessons learned via exercises and expert elicitation. The end result is a robust and passive TIE which can be utilized to protect monitoring party equipment left in a host facility.

  16. Text Information Extraction System (TIES) | Informatics Technology for Cancer Research (ITCR)

    Science.gov (United States)

    TIES is a service based software system for acquiring, deidentifying, and processing clinical text reports using natural language processing, and also for querying, sharing and using this data to foster tissue and image based research, within and between institutions.

  17. Internal fixation of fractured ribs in neonatal foals with nylon cable tie using a modified technique.

    Science.gov (United States)

    Williams, T Boullhesen; Williams, Jarred M; Rodgerson, Dwayne H

    2017-06-01

    Nylon cable tie has been shown to be an effective and economical method for fixing fractured ribs in the neonatal foal. This article describes a modification of the previously described technique. Under general anesthesia, the fractured ribs were exposed and a hole was drilled in the dorsal and ventral fragments. The fracture was not reduced, leaving the fragments overriding each other. The nylon cable tie was passed through the hole in the dorsal fragment from the external surface of the rib. The free end of the cable tie was then passed through the hole in the ventral fragment from the external surface of the rib and the tie was tightened. This technique was used in 4 neonatal foals with no complications. The modification of the original technique represents a method to minimize soft tissue trauma, implant failure, and complications.

  18. One long tie bar broken after 3 days because of hydrogen contamination.

    CERN Multimedia

    H. Gerwig

    2000-01-01

    The tie bars have been produced with a high yield strength. As known for these type of high strength bolts, and hydrogen contamination during manufacture or heat treatment could lead to rupture under stress after several days.

  19. ParTIES: a toolbox for Paramecium interspersed DNA elimination studies.

    Science.gov (United States)

    Denby Wilkes, Cyril; Arnaiz, Olivier; Sperling, Linda

    2016-02-15

    Developmental DNA elimination occurs in a wide variety of multicellular organisms, but ciliates are the only single-celled eukaryotes in which this phenomenon has been reported. Despite considerable interest in ciliates as models for DNA elimination, no standard methods for identification and characterization of the eliminated sequences are currently available. We present the Paramecium Toolbox for Interspersed DNA Elimination Studies (ParTIES), designed for Paramecium species, that (i) identifies eliminated sequences, (ii) measures their presence in a sequencing sample and (iii) detects rare elimination polymorphisms. ParTIES is multi-threaded Perl software available at https://github.com/oarnaiz/ParTIES. ParTIES is distributed under the GNU General Public Licence v3. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.

  20. Do Social Ties Affect Our Health? Exploring the Biology of Relationships

    Science.gov (United States)

    ... Do Social Ties Affect Our Health? Exploring the Biology of Relationships En español Send us your comments ... neighbors, or others, social connections can influence our biology and well-being. Wide-ranging research suggests that ...

  1. The effects of emitter-tied field plates on lateral PNP ionizing radiation response

    International Nuclear Information System (INIS)

    Barnaby, H.J.; Schrimpf, R.D.; Cirba, C.R.; Pease, R.L.; Fleetwood, D.M.; Kosier, S.L.

    1998-03-01

    Radiation response comparisons of lateral PNP bipolar technologies reveal that device hardening may be achieved by extending the emitter contact over the active base. The emitter-tied field plate suppresses recombination of carriers with interface traps

  2. Determination of the local ties dynamics on colocation site Simeiz-Katsyveli

    Science.gov (United States)

    Bolotina, O. V.; Samoilenko, O. M.; Bolotin, S. L.; Lytvyn, M. O.; Kozel, V. L.

    2007-12-01

    Geodetic ties between VLBI, SLR and GPS observatories at Simeiz-Katsyveli are analysed. The differencies between the geodetic and UTRF2000 coordinates are given. Repeatability of the results are investigated.

  3. Angiopoietins regulate vascular reactivity after haemorrhagic shock in rats through the Tie2-nitric oxide pathway.

    Science.gov (United States)

    Xu, Jing; Lan, Dan; Li, Tao; Yang, Guangming; Liu, Liangming

    2012-11-01

    Vascular reactivity shows biphasic changes after severe trauma or shock. Our aim was to elucidate the mechanisms of biphasic-changed vascular reactivity after haemorrhagic shock by observing the regulation of angiopoietin-1 (Ang-1) and angiopoietin-2 (Ang-2) on it. Haemorrhagic-shock Sprague-Dawley rats, hypoxia-treated superior mesenteric arteries (SMAs) with intact endothelia, and a cell mixture of vascular smooth muscle cells (VSMCs) and vascular endothelial cells (VECs) were adopted to evaluate the regulatory effects of Ang-1 and Ang-2 on vascular reactivity and their relationship to Tie2 (receptor tyrosine kinase)-Akt-endothelial nitric oxide synthase (eNOS) and Tie2-extracellular signal-regulated kinase (Erk)-inducible nitric oxide synthase (iNOS) signal pathways. Ang-1 expression, Tie2 phosphorylation, and nitric oxide (NO) release were increased at early shock. Exogenous Ang-1 maintained the vascular reactivity of SMAs after early hypoxia. Tie2-blocking antibody and the antagonists of Akt and eNOS antagonized Ang-1-induced maintenance in vascular reactivity and a slight release in NO at the early stage of shock. Ang-2 expression, Tie2 phosphorylation, and NO release were greatly increased at late shock, but exogenous Ang-2 further decreased the vascular reactivity of SMAs after late hypoxia. Tie2-blocking antibody and the antagonists of Erk and iNOS andtagonized the Ang-2-induced decrease in vascular reactivity and a large release of NO at the late stage of shock. Ang-1 and Ang-2 participated in the regulation of vascular reactivity after haemorrhagic shock. Ang-1 was mainly responsible for the hyperreactivity at early shock through the Tie2-Akt-eNOS pathway and an appropriate amount of NO release. Ang-2 was mainly responsible for the hyporeactivity at late shock through the Tie2-Erk-iNOS pathway and the release of a large amount of NO.

  4. Measurement and Analysis of Strains Developed on Tie-rods of a Steering System

    OpenAIRE

    Asenov, Stefan

    2016-01-01

    Modern day manufacturers research and develop vehicles that are equipped with steering assist to help drivers undertake manoeuvres. However the lack of research for a situation where one tie-rod experiences different strains than the opposite one leads to failure in the tie-rod assembly and misalignment in the wheels over time. The performance of the steering system would be improved if this information existed. This bachelor’s dissertation looks into this specific situation and cond...

  5. Division of tongue tie: review of practice through a tertiary paediatric otorhinolaryngology service.

    LENUS (Irish Health Repository)

    Glynn, R W

    2012-10-01

    Recent NICE guidance declared that evidence regarding surgical division of tongue tie was adequate to support the use of the procedure, provided that normal arrangements are in place for consent, audit and clinical governance. This work aimed to carry out a retrospective review of those patients who have previously undergone tongue tie division through a tertiary paediatric otorhinolaryngology service. We further aimed to identify the referral patterns, indications for, and outcomes following, division.

  6. Social ties and risk for cancer--a prospective cohort study

    DEFF Research Database (Denmark)

    Bergelt, Corinna; Prescott, Eva; Grønbaek, Morten

    2009-01-01

    Poor social support and small social networks have been associated with increased risks for conditions such as coronary heart disease as well as with overall mortality. We investigated the association between social ties and risk for cancer.......Poor social support and small social networks have been associated with increased risks for conditions such as coronary heart disease as well as with overall mortality. We investigated the association between social ties and risk for cancer....

  7. A study of Chinese guanxi type in family business from the perspective of power-based and leadership behaviours

    Directory of Open Access Journals (Sweden)

    Hsien-Tang Tsai

    2013-12-01

    Full Text Available In Chinese society, a guanxi network is based on kinship or family ties of affection. This special pattern has a historical background and is one of the important factors that have enabled many Taiwanese enterprises to continue operating through the decades. The personal links between people create a kind of social network known as guanxi, which is a unique characteristic of Chinese society. The study aims to investigate the guanxi type of managers in Taiwanese family businesses, and examines how the guanxi type may moderate the correlation between the managers’ power and the influence tactics used to handle subordinates. We surveyed 178 managers who are working in Taiwanese family business. The results of the hierarchical regression modeling showed that as managers have more position power, especially those exercising the family guanxi, they are more likely to be assertive in their treatment of their subordinates. Managers possessing the friend guanxi often play a bridging role to complement the function of those managers with the family guanxi, who may use the assertive approach too strongly. Managers of this type can provide a “lubricant effect” and keep the family business running smoothly. We recommend that family business owners should pay more attention to relationship harmony and internal communication channels in their organisations.

  8. [Alcohol dependence syndrome and BDIM (before-discharge intervention method)--report 4, the family members' self-reports about BDIM].

    Science.gov (United States)

    Ino, Aro; Hayashi, Tatsuya; Yamashiro, Kazunori; Cho, Tetsuji; Kishimoto, Toshifumi

    2005-02-01

    One hundred fifty-three inpatients with alcohol dependence syndrome were treated with the structured BDIM (Before-Discharge Intervention Method). 82 patients of them have participated to self-help group meetings or kept having therapy as our outpatients or inpatients during the study period. We chose the families of the 82 patients as our study subject Out of the study subjects who took part in BDIM, 64 families (117 persons) answered our questionnaire. Among them 63 families (101 persons) gave their described answers of impressions and opinions about BDIM, which were summarized as follows. (1) Through BDIM the family members gained second thought on their alcoholic family member (IP: identified patient) and they could tell their new view to IP. BDIM enabled them to tell IP their sincere feeling and hope for recovery of IP. BDIM empowered both IP and IP's family members. (2) The family members became to know IP's orientation on his or her disease. They came to know IP's denial and understand him or her as he or she was. (3) The family members felt emotional ties among themselves and IP through BDIM. When the family members of a dysfunctional family took part together in BDIM, they could know the feelings, thoughts, experiences and hopes one another. The family members had a precious experience of mutual understanding among themselves and IP to hope for recovery together. (4) The family members appreciated BDIM as a effective therapy. In BDIM many of them regarded highly of giving their letters to IP as a useful method to convey their feeling and thoughts calmly to IP. (5) On the other hand some family members pointed out the difficulty for themselves to write on BDIM. For family members who are not good at writing a letter or tend only to blame IP through their letters, writing and giving letters to IP is not appropriate as a therapy. If family members feel strong anxiety or fear, it is safe not to practice BDIM.

  9. Noteworthy: Fortune 500: Texas ties California for national lead

    OpenAIRE

    Michael Nicholson

    2010-01-01

    According to the 2010 Fortune 500, released in April, Texas hosts the headquarters of 57 of the nation's 500 largest companies, ranked by gross revenues. Texas secured its place as a Fortune 500 leader through its position as focal point of the domestic energy industry, its relatively strong economic growth over the past decade, and its relatively low tax rates and living costs.

  10. Multi-purpose grid-tied inverter with smart grid capabilities

    Science.gov (United States)

    Liyanagedera, Chamika Mihiranga

    Distributed energy storages play an important role in increasing the reliability and efficiency of the grid through means of peak load shaving, grid voltage support, and grid frequency support. It is important to have distributed energy storages that can utilize the functionalities of the modern smart grid to operate more effectively. The grid-tied inverter is one of the major components in a distributed energy storage that controls the power transfer between the grid and an energy storage device. In this research, a grid-tied inverter that can be used in distributed energy storage applications was designed, developed, and tested. This grid-tied inverter was designed with the capability to control both reactive and active power flow in either direction. The grid-tied inverter is equipped with communication capabilities so it can be remotely controlled by commands sent through a smart grid network. For demonstrative purposes, a user interface was developed to control and monitor the operation of the grid-tied inverter. Finally the operation of the grid-tied inverter was evaluated in accordance to IEEE 1547, the Standard for Interconnecting Distributed Resources with Electric Power Systems.

  11. Relationships between authorship contributions and authors' industry financial ties among oncology clinical trials.

    Science.gov (United States)

    Rose, Susannah L; Krzyzanowska, Monika K; Joffe, Steven

    2010-03-10

    PURPOSE To test the hypothesis that authors who play key scientific roles in oncology clinical trials, and who therefore have increased influence over the design, analysis, interpretation or reporting of trials, are more likely than those who do not play such roles to have financial ties to industry. METHODS Data were abstracted from all trials (n = 235) of drugs or biologic agents published in the Journal of Clinical Oncology between January 1, 2006 and June 30, 2007. Article-level data included sponsorship, age group (adult v pediatric), phase, single versus multicenter, country (United States v other), and number of authors. Author-level data (n = 2,927) included financial ties (eg, employment, consulting) and performance of key scientific roles (ie, conception/design, analysis/interpretation, or manuscript writing). Associations between performance of key roles and financial ties, adjusting for article-level covariates, were examined using generalized linear mixed models. Results One thousand eight hundred eighty-one authors (64%) reported performing at least one key role, and 842 authors (29%) reported at least one financial tie. Authors who reported performing a key role were more likely than other authors to report financial ties to industry (adjusted odds ratio [OR], 4.3; 99% CI, 3.0 to 6.0; P reporting of oncology clinical trials are more likely than authors who do not perform such roles to have financial ties to industry.

  12. Angiopoietin-1 receptor Tie2 distinguishes multipotent differentiation capability in bovine coccygeal nucleus pulposus cells.

    Science.gov (United States)

    Tekari, Adel; Chan, Samantha C W; Sakai, Daisuke; Grad, Sibylle; Gantenbein, Benjamin

    2016-05-23

    The intervertebral disc (IVD) has limited self-healing potential and disc repair strategies require an appropriate cell source such as progenitor cells that could regenerate the damaged cells and tissues. The objective of this study was to identify nucleus pulposus-derived progenitor cells (NPPC) and examine their potential in regenerative medicine in vitro. Nucleus pulposus cells (NPC) were obtained from 1-year-old bovine coccygeal discs by enzymatic digestion and were sorted for the angiopoietin-1 receptor Tie2. The obtained Tie2- and Tie2+ fractions of cells were differentiated into osteogenic, adipogenic, and chondrogenic lineages in vitro. Colony-forming units were prepared from both cell populations and the colonies formed were analyzed and quantified after 8 days of culture. In order to improve the preservation of the Tie2+ phenotype of NPPC in monolayer cultures, we tested a selection of growth factors known to have stimulating effects, cocultured NPPC with IVD tissue, and exposed them to hypoxic conditions (2 % O2). After 3 weeks of differentiation culture, only the NPC that were positive for Tie2 were able to differentiate into osteocytes, adipocytes, and chondrocytes as characterized by calcium deposition (p nucleus pulposus contains NPPC that are Tie2+. These cells fulfilled formally progenitor criteria that were maintained in subsequent monolayer culture for up to 7 days by addition of FGF2 or hypoxic conditions. We propose that the nucleus pulposus represents a niche of precursor cells for regeneration of the IVD.

  13. Single port intra-gastric full thickness resection: Using "Rotation and Revolution Single Instrument Tie (RRSIT)".

    Science.gov (United States)

    Kim, Ho Goon; Ryu, Seong Yeob; Kim, Dong Yi

    2014-09-01

    Recently, minimize incisions has led to a reduction in the number of ports, and has led to transumbilical single-port surgery. We evaluated the treatment result of single-port, intragastric, full thickness resections for gastric SMTs. In addition, we introduce a novel intracorporeal knot tying method. From August 2010 to March 2011, five patients underwent single-port intragastric, full thickness gastric wedge resections. After performing a gastrostomy, a single port was inserted into the stomach. After full thickness resection, the defect in the gastric wall was sutured by full thickness interrupted suture and a new knot tying technique. The mean operative time was 129 ± 21.0 min and the mean mass size was 3.0±0.6 cm. There were two very low-risk GISTs, 2 leiomyomas, and 1 carcinoid. The post-operative course was uneventful in all patients. The mean hospital stay was 7.2±1.2 days. Single-port intra-gastric full thickness resection with novel intracorporeal knot tying method is feasible and safe. novel intracorporeal knot tying method is a very useful knot tying method. We expect the application of novel intracorporeal knot tying method to be diverse and broad.

  14. Ipsilateral deficits in 1-handed shoe tying after left or right hemisphere stroke.

    Science.gov (United States)

    Poole, Janet L; Sadek, Joseph; Haaland, Kathleen Y

    2009-10-01

    Poole JL, Sadek J, Haaland KY. Ipsilateral deficits in 1-handed shoe tying after left or right hemisphere stroke. To examine 1-handed shoe tying performance and whether cognitive deficits more associated with left or right hemisphere damage differentially affect it after unilateral stroke. Observational cohort comparing ipsilesional shoe tying, spatial and language skills, and limb praxis. Primary care Veterans Affairs and private medical center. Not applicable. Volunteer right-handed sample of adults with left or right hemisphere damage and healthy demographically matched adults. The number of correct trials and the total time to complete 10 trials tying a shoe using the 1-handed method. Both stroke groups had fewer correct trials and were significantly slower tying the shoe than the control group. Spatial skills predicted accuracy and speed after right hemisphere damage. After left hemisphere damage, accuracy was predicted by spatial skills and limb praxis, while speed was predicted by limb praxis only. Ipsilesional shoe tying is similarly impaired after left or right hemisphere damage, but for different reasons. Spatial deficits had a greater influence after right hemisphere damage, and limb apraxia had a greater influence after left hemisphere damage. Language deficits did not affect performance, indicating that aphasia does not preclude using this therapy approach. These results suggest that rehabilitation professionals should consider assessment of limb apraxia and ipsilesional skill training in the performance of everyday tasks.

  15. John Strong (1941 - 2006)

    CERN Multimedia

    Wickens, F

    Our friend and colleague John Strong was cruelly taken from us by a brain tumour on Monday 31st July, a few days before his 65th birthday John started his career working with a group from Westfield College, under the leadership of Ted Bellamy. He obtained his PhD and spent the early part of his career on experiments at Rutherford Appleton Laboratory (RAL), but after the early 1970s his research was focussed on experiments in CERN. Over the years he made a number of notable contributions to experiments in CERN: The Omega spectrometer adopted a system John had originally developed for experiments at RAL using vidicon cameras to record the sparks in the spark chambers; He contributed to the success of NA1 and NA7, where he became heavily involved in the electronic trigger systems; He was responsible for the second level trigger system for the ALEPH detector and spent five years leading a team that designed and built the system, which ran for twelve years with only minor interventions. Following ALEPH he tur...

  16. Stirring Strongly Coupled Plasma

    CERN Document Server

    Fadafan, Kazem Bitaghsir; Rajagopal, Krishna; Wiedemann, Urs Achim

    2009-01-01

    We determine the energy it takes to move a test quark along a circle of radius L with angular frequency w through the strongly coupled plasma of N=4 supersymmetric Yang-Mills (SYM) theory. We find that for most values of L and w the energy deposited by stirring the plasma in this way is governed either by the drag force acting on a test quark moving through the plasma in a straight line with speed v=Lw or by the energy radiated by a quark in circular motion in the absence of any plasma, whichever is larger. There is a continuous crossover from the drag-dominated regime to the radiation-dominated regime. In the crossover regime we find evidence for significant destructive interference between energy loss due to drag and that due to radiation as if in vacuum. The rotating quark thus serves as a model system in which the relative strength of, and interplay between, two different mechanisms of parton energy loss is accessible via a controlled classical gravity calculation. We close by speculating on the implicati...

  17. Strong-interaction nonuniversality

    International Nuclear Information System (INIS)

    Volkas, R.R.; Foot, R.; He, X.; Joshi, G.C.

    1989-01-01

    The universal QCD color theory is extended to an SU(3) 1 direct product SU(3) 2 direct product SU(3) 3 gauge theory, where quarks of the ith generation transform as triplets under SU(3)/sub i/ and singlets under the other two factors. The usual color group is then identified with the diagonal subgroup, which remains exact after symmetry breaking. The gauge bosons associated with the 16 broken generators then form two massive octets under ordinary color. The interactions between quarks and these heavy gluonlike particles are explicitly nonuniversal and thus an exploration of their physical implications allows us to shed light on the fundamental issue of strong-interaction universality. Nonuniversality and weak flavor mixing are shown to generate heavy-gluon-induced flavor-changing neutral currents. The phenomenology of these processes is studied, as they provide the major experimental constraint on the extended theory. Three symmetry-breaking scenarios are presented. The first has color breaking occurring at the weak scale, while the second and third divorce the two scales. The third model has the interesting feature of radiatively induced off-diagonal Kobayashi-Maskawa matrix elements

  18. Caring More or Less: Individualistic and Collectivist Systems of Family Eldercare.

    Science.gov (United States)

    Pyke, Karen D.; Bengston, Vern L.

    1996-01-01

    Identifies individualistic and collectivist systems of family eldercare and explores their dimensions. Findings suggest that while individualist families minimize their caregiving and rely on formal supports, collectivists use caregiving to construct family ties, sometimes prompting overcare. Discusses factors that contribute to these caregiving…

  19. Curriculum Helps Families Discuss and Plan for Future of Their Woodland or Farm

    Science.gov (United States)

    Withrow-Robinson, Brad; Sisock, Mary; Watkins, Susan

    2012-01-01

    Succession planning is an important step for families owning woodlands and farms that wish to maintain the character of the land and continue the families' connection to it. We introduce Ties to the Land, an educational curriculum that helps families communicate more effectively about the fate of their land and how to transition to future…

  20. Family focused nursing education

    Directory of Open Access Journals (Sweden)

    R. A. E. Thompson

    1993-03-01

    Full Text Available At the present time the majority of nurse education programmes are firmly tied to the perspectives of curative medicine within hospitals - they are disease and hospital oriented. This model, which indicates a 'sickness’ concept of nursing is entirely inappropriate if contemporary and future health care needs are to be met. The shift in education should be towards a health, family and whole person centered approach. The family is the most fundamental and dynamic unit in society with a profound influence upon its members. Besides performing a variety of other functions, the family has a central role in promoting and maintaining the health of its members. Because the family unit is the microcosm of society and accurately reflects the needs of society at large it is appropriate that this should be a key area of experience. Family attachments during training provide opportunities for close and committed contact with people in their everyday world and for learning what is really important to them.

  1. [Construction of recombinant lentiviral vector of Tie2-RNAi and its influence on malignant melanoma cells in vitro].

    Science.gov (United States)

    Shan, Xiu-ying; Liu, Zhao-liang; Wang, Biao; Guo, Guo-xiang; Wang, Mei-shui; Zhuang, Fu-lian; Cai, Chuan-shu; Zhang, Ming-feng; Zhang, Yan-ding

    2011-07-01

    To construct lentivector carrying Tie2-Small interfering RNA (SiRNA), so as to study its influence on malignant melanoma cells. Recombinant plasmid pSilencer 1.0-U6-Tie2-siRNA and plasmid pNL-EGFP were digested with XbaI, ligated a target lentiviral transfer plasmid of pNL-EGFP-U6-Tie2-I or pNL-EGFP-U6-Tie2-II, and then the electrophoresis clones was sequenced. Plasmids of pNL-EGFP-U6-Tie2-I and pNL-EGFP-U6-Tie2-II were constructed and combined with pVSVG and pHelper, respectively, to constitute lentiviral vector system of three plasmids. The Lentiviral vector system was transfected into 293T cell to produce pNL-EGFP-U6-Tie2- I and pNL-EGFP-U6-Tie2-II lentivirus. Then the supernatant was collected to determine the titer. Malignant melanoma cells were infected by both lentiviruses and identified by Realtime RT-PCR to assess inhibitory efficiency. The recombinant lentiviral vectors of Tie2-RNAi were constructed successfully which were analyzed with restriction enzyme digestion and identified by sequencing. And the titer of lentiviral vector was 8.8 x 10(3)/ml, which was determined by 293T cell. The results of Realtime RT-PCR demonstrated that the lentiviral vectors of Tie2-RNAi could infect malignant melanoma cells and inhibit the expression of Tie2 genes in malignant melanoma cells (P0.05) between the two lentiviral vectors of Tie2-RNAi. Lentivector carrying Tie2-SiRNA can be constructed successfully and inhibit the expression of Tie2 gene in vitro significantly. The study will supply the theory basis for the further research on the inhibition of tumor growth in vivo.

  2. The context of collecting family health history: examining definitions of family and family communication about health among African American women.

    Science.gov (United States)

    Thompson, Tess; Seo, Joann; Griffith, Julia; Baxter, Melanie; James, Aimee; Kaphingst, Kimberly A

    2015-04-01

    Public health initiatives encourage the public to discuss and record family health history information, which can inform prevention and screening for a variety of conditions. Most research on family health history discussion and collection, however, has predominantly involved White participants and has not considered lay definitions of family or family communication patterns about health. This qualitative study of 32 African American women-16 with a history of cancer-analyzed participants' definitions of family, family communication about health, and collection of family health history information. Family was defined by biological relatedness, social ties, interactions, and proximity. Several participants noted using different definitions of family for different purposes (e.g., biomedical vs. social). Health discussions took place between and within generations and were influenced by structural relationships (e.g., sister) and characteristics of family members (e.g., trustworthiness). Participants described managing tensions between sharing health information and protecting privacy, especially related to generational differences in sharing information, fear of familial conflict or gossip, and denial (sometimes described as refusal to "own" or "claim" a disease). Few participants reported that anyone in their family kept formal family health history records. Results suggest family health history initiatives should address family tensions and communication patterns that affect discussion and collection of family health history information.

  3. Cognitive, Personality, and Family Factors in Patients with Migraine Headache

    OpenAIRE

    Reza Johari-Fard; Farzad Goli; Amirreza Boroumand

    2014-01-01

    Migraine is a disorder that has debilitating pain, and affects all aspects of life, including the academic, social, and family life of patients. In addition, studies show the effects of migraine on patient's relationships with family members such as spouse, children, and other family members. In addition to physical pain, migraines are tied to significant psychological and economic costs. Migraineurs tend to have high levels of depression and anxiety, and migraine headaches have a profoundly ...

  4. Modeling “unilateral” response in the cross-ties of a cable network: Deterministic vibration

    Science.gov (United States)

    Giaccu, Gian Felice; Caracoglia, Luca; Barbiellini, Bernardo

    2014-09-01

    Cross-ties are employed as passive devices for the mitigation of stay-cable vibrations, exhibited on cable-stayed bridges under wind and wind-rain excitation. Large-amplitude oscillation can result in damage to the cables or perceived discomfort to bridge users. The “cable-cross-ties system” derived by connecting two or more stays by transverse cross-ties is often referred to as an “in-plane cable network”. Linear modeling of network dynamics has been available for some time. This framework, however, cannot be used to detect incipient failure in the restrainers due to slackening or snapping. A new model is proposed in this paper to analyze the effects of a complete loss in the pre-tensioning force imparted to the cross-ties, which leads to the “unilateral” free-vibration response of the network (i.e., a cross-tie with linear-elastic internal force in tension and partially inactive in compression). Deterministic free vibrations of a three-cable network are investigated by using the “equivalent linearization method”. A performance coefficient is introduced to monitor the relative reduction in the average (apparent) stiffness of the connector during free vibration response (“mode by mode”), exhibiting unilateral behavior. A reduction of fifty percent in the apparent stiffness was observed in the cross-tie when the pre-tensioning force is small in comparison with the tension force in the stay. This coefficient may be used as a damage indicator for the selection of the initial pre-tensioning force in the cross-ties needed to avoid slackening.

  5. Parents' Romantic Attachment Predicts Family Ritual Meaning and Family Cohesion Among Parents and Their Children With Cancer.

    Science.gov (United States)

    Santos, Susana; Crespo, Carla; Canavarro, M Cristina; Kazak, Anne E

    2017-01-01

    Family functioning is associated with adaptation in pediatric illness. This study examines the role of parents’ relationships (specifically romantic attachment) as a predictor of family ritual meaning and family cohesion for parents and their children with cancer. The dyads, 58 partnered Portuguese parents and their children in treatment, reported on family ritual meaning and family cohesion at Time 1 (T1) and after 6 months (T2). Parents also completed the questionnaire assessing romantic attachment at T1. Parents’ avoidant attachment, but not anxious attachment, predicted lower family ritual meaning and family cohesion after 6 months. T2 family ritual meaning mediated the relationship between T1 avoidant attachment and T2 family cohesion. Parents’ avoidant attachment may have a negative effect on family functioning in parents and children. Clinical intervention to address avoidant attachment or/and to promote family ritual meaning may help strengthen family ties.

  6. HomeFront Strong (HFS): Building Resiliency in Military Families

    Science.gov (United States)

    2015-09-01

    teaches you how to center yourself in the moment • Optimism • Breathing • Affirmations and Mantras • Progressive Muscle Relaxat ion • Visualization...negative thoughts Exercising Iii Practic ing mantras Going for a walk or a run ~ Socializing with f riends or fami ly Meditation 8 Finding comedic...Breathing • Affirmations, Mantras , and Monos • Progressive Musc le Relaxat ion • Visualization • Guided Imagery • Mindfulness *’***%’* FIB

  7. HomeFront Strong (HFS): Building Resiliency in Military Families

    Science.gov (United States)

    2016-09-01

    Total Community Organizations Visited: 14 Facebook Advertising Date Purpose Reach January 2016 HFS marketing and participant recruitment 10,032...program promotion 1 8/4/16 Wives of PTSD Vets and Military Facebook Page HFS program promotion 1 8/11/16 DTW USO/Freedom Center HFS program

  8. Platelet-rich plasma extract prevents pulmonary edema through angiopoietin-Tie2 signaling.

    Science.gov (United States)

    Mammoto, Tadanori; Jiang, Amanda; Jiang, Elisabeth; Mammoto, Akiko

    2015-01-01

    Increased vascular permeability contributes to life-threatening pathological conditions, such as acute respiratory distress syndrome. Current treatments for sepsis-induced pulmonary edema rely on low-tidal volume mechanical ventilation, fluid management, and pharmacological use of a single angiogenic or chemical factor with antipermeability activity. However, it is becoming clear that a combination of multiple angiogenic/chemical factors rather than a single factor is required for maintaining stable and functional blood vessels. We have demonstrated that mouse platelet-rich plasma (PRP) extract contains abundant angiopoietin (Ang) 1 and multiple other factors (e.g., platelet-derived growth factor), which potentially stabilize vascular integrity. Here, we show that PRP extract increases tyrosine phosphorylation levels of Tunica internal endothelial cell kinase (Tie2) and attenuates disruption of cell-cell junctional integrity induced by inflammatory cytokine in cultured human microvascular endothelial cells. Systemic injection of PRP extract also increases Tie2 phosphorylation in mouse lung and prevents endotoxin-induced pulmonary edema and the consequent decreases in lung compliance and exercise intolerance resulting from endotoxin challenge. Soluble Tie2 receptor, which inhibits Ang-Tie2 signaling, suppresses the ability of PRP extract to inhibit pulmonary edema in mouse lung. These results suggest that PRP extract prevents endotoxin-induced pulmonary edema mainly through Ang-Tie2 signaling, and PRP extract could be a potential therapeutic strategy for sepsis-induced pulmonary edema and various lung diseases caused by abnormal vascular permeability.

  9. Occupational contact dermatitis among the traditional ′tie and dye′ cottage industry in Western Rajasthan

    Directory of Open Access Journals (Sweden)

    Singhi M

    2005-01-01

    Full Text Available Background : Dyeing is an age-old process and forms an integral part of textile industries. Tying is a process by which a particular part of cloth is prevented from the process of dyeing. The skin diseases in workers engaged in the ′tie and dye′ industry have not been extensively studied. Aims : To study the prevalence of contact dermatitis among workers engaged in the ′tie and dye′ industries in and around Jodhpur (Western Rajasthan. Methods : One thousand three hundred workers engaged in ′tie and dye′ work were evaluated for occupation-related dermatitis. Those with skin lesions were subjected to patch tests using 2% aqueous solution of the dyes and chemicals commonly used by them. These included direct dyes, VAT dyes, sulfur dyes and azo dyes. Fifty workers without skin lesions served as controls. Results : One hundred patients (7.69% had dermatitis involving the exposed sites, mainly the hands and forearms. Eighty-one patients showed positive reactions to one or more dyes, most commonly Red RC base (azo dye, followed by naphthol. Conclusion: Red RC base and naphthol were the commonest allergens in the ′tie and dye′ industry.

  10. Assigning Tie Points to a Generalised Building Model for Uas Image Orientation

    Science.gov (United States)

    Unger, J.; Rottensteiner, F.; Heipke, C.

    2017-08-01

    This paper addresses the integration of a building model into the pose estimation of image sequences. Images are captured by an Unmanned Aerial System (UAS) equipped with a camera flying in between buildings. Two approaches to assign tie points to a generalised building model in object space are presented. A direct approach is based on the distances between the object coordinates of tie points and planes of the building model. An indirect approach first finds planes within the tie point cloud that are subsequently matched to model planes; finally based on these matches, tie points are assigned to model planes. For both cases, the assignments are used in a hybrid bundle adjustment to refine the poses (image orientations). Experimental results for an image sequence demonstrate improvements in comparison to an adjustment without the building model. Differences and limitations of the two approaches for point-plane assignment are discussed - in the experiments they perform similar with respect to estimated standard deviations of tie points.

  11. The social ties that bind: social anxiety and academic achievement across the university years.

    Science.gov (United States)

    Brook, Christina A; Willoughby, Teena

    2015-05-01

    Given that engagement and integration in university/college are considered key to successful academic achievement, the identifying features of social anxiety, including fear of negative evaluation and distress and avoidance of new or all social situations, may be particularly disadvantageous in the social and evaluative contexts that are integral to university/college life. Thus, the purpose of this study was to examine the direct effects of social anxiety on academic achievement, as well as investigate an indirect mechanism through which social anxiety might impact on academic achievement, namely, the formation of new social ties in university. The participants were 942 (71.7 % female; M = 19 years at Time 1) students enrolled in a mid-sized university in Southern Ontario, Canada. Students completed annual assessments of social anxiety, social ties, and academic achievement for three consecutive years. The results from an autoregressive cross-lag path analysis indicated that social anxiety had a significant and negative direct relationship with academic achievement. Moreover, the negative indirect effect of social anxiety on academic achievement through social ties was significant, as was the opposing direction of effects (i.e., the indirect effect of academic achievement on social anxiety through social ties). These findings highlight the critical role that social ties appear to play in successful academic outcomes and in alleviating the effects of social anxiety during university/college.

  12. Breaking up Isn't Hard to Do: Exploring the Dissolution of Teachers' and School Leaders' Work-Related Ties

    Science.gov (United States)

    Spillane, James P.; Shirrell, Matthew

    2017-01-01

    Purpose: School leaders are central to the development of work-related ties among school staff. Although prior work has examined the predictors of the presence of work-related ties, little is known about the breakup or dissolution of ties among school staff. This study examines the extent of tie dissolution among school staff, as well as both the…

  13. HIL evaluation of control unit in grid-tied coverters

    Directory of Open Access Journals (Sweden)

    Porobić Vlado B.

    2016-01-01

    Full Text Available Hardware-in-the-Loop (HIL emulation is poised to become unsurpassed design tool for development, testing, and optimization of real-time control algorithms for grid connected power electronics converters for distributed generation, active filters and smart grid applications. It is strongly important to examine and test how grid connected converters perform under different operating conditions including grid disturbances and faults. In that sense, converter’s controller is a key component responsible for ensuring safe and high-performance operation. This paper demonstrates an example how ultra-low latency and high fidelity HIL emulator is used to easily, rapidly and exhaustively test and validate standard control strategy for grid connected power electronics converters, without need for expensive hardware prototyping and laboratory test equipment. [Projekat Ministarstva nauke Republike Srbije, br. III 042004 and by the Provincial Secretariat for Science and Technological Development of AP Vojvodina under contract No. 114-451-3508/2013-04

  14. Mental health of sub-saharan african migrants: The gendered role of migration paths and transnational ties

    Directory of Open Access Journals (Sweden)

    Julie Pannetier

    2017-12-01

    Full Text Available In Europe, migrants are at higher risk of common mental disorders or psychological distress than are natives. Little is known regarding the social determinants of migrant mental health, particularly the roles played by migration conditions and transnational practices, which may manifest themselves in different ways for men and for women. The goal of this paper was to understand the gendered roles of migration paths and transnational ties in mental health among sub-Saharan African migrants residing in the Paris, France, metropolitan area. This study used data from the Parcours study conducted in 2012–2013, which employed a life-event approach to collect data from a representative sample of migrants who visited healthcare facilities (n = 2468. We measured anxiety and depressive symptoms at the time of data collection with the Patient Health Questionnaire-4 (PHQ-4. Reasons for migration, the living conditions in the host country and transnational ties after migration were taken into account by sex and after adjustment. Our study demonstrates that among sub-Saharan African migrants, mental health is related to the migratory path and the migrant’s situation in the host country but differently for women and men. Among women, anxiety and depressive symptoms were strongly related to having left one’s home country because of threats to one’s life. Among men, residing illegally in the host country was related to impaired mental health. For both women and men, cross-border separation from a child less than 18 years old was not independently associated with anxiety and depressive symptoms. In addition, social and emotional support from relatives and friends—both from the society of origin and of destination—were associated with lower anxiety and depressive symptoms. Migrant mental health may be impaired in the current context of anti-migrant policies and an anti-immigrant social environment in Europe.

  15. Mental health of sub-saharan african migrants: The gendered role of migration paths and transnational ties.

    Science.gov (United States)

    Pannetier, Julie; Lert, France; Jauffret Roustide, Marie; du Loû, Annabel Desgrées

    2017-12-01

    In Europe, migrants are at higher risk of common mental disorders or psychological distress than are natives. Little is known regarding the social determinants of migrant mental health, particularly the roles played by migration conditions and transnational practices, which may manifest themselves in different ways for men and for women. The goal of this paper was to understand the gendered roles of migration paths and transnational ties in mental health among sub-Saharan African migrants residing in the Paris, France, metropolitan area. This study used data from the Parcours study conducted in 2012-2013, which employed a life-event approach to collect data from a representative sample of migrants who visited healthcare facilities (n = 2468). We measured anxiety and depressive symptoms at the time of data collection with the Patient Health Questionnaire-4 (PHQ-4). Reasons for migration, the living conditions in the host country and transnational ties after migration were taken into account by sex and after adjustment. Our study demonstrates that among sub-Saharan African migrants, mental health is related to the migratory path and the migrant's situation in the host country but differently for women and men. Among women, anxiety and depressive symptoms were strongly related to having left one's home country because of threats to one's life. Among men, residing illegally in the host country was related to impaired mental health. For both women and men, cross-border separation from a child less than 18 years old was not independently associated with anxiety and depressive symptoms. In addition, social and emotional support from relatives and friends-both from the society of origin and of destination-were associated with lower anxiety and depressive symptoms. Migrant mental health may be impaired in the current context of anti-migrant policies and an anti-immigrant social environment in Europe.

  16. Design and construction of the tensioned ties for UX15 cavern vault

    CERN Document Server

    Parkin, R J H

    2002-01-01

    Due to the programme constraints for the UX15 cavern set by CERN, it has been necessary to complete the concrete lining of the vault prior to the excavation of the bench. The vault lining is therefore being temporarily suspended from a number of pre-tensioned high capacity multi-strand tensioned ties. During excavation of the bench, additional loads will be imposed onto the vault lining due to ground displacements. In order to minimise the number of ties, the previously completed linings of the PX14 and PX16 access shafts will be used to support some of the load. Three-dimensional modelling has been undertaken to design the structures and determine the expected behaviour of this complex support system. Geotechnical instrumentation has been installed in the concrete linings and the ground to monitor loads and displacements during construction. After the cavern walls have been completed, the ties will be released.

  17. The effects of integration and transnational ties on international return migration intentions

    Directory of Open Access Journals (Sweden)

    Hein de Haas

    2011-12-01

    Full Text Available While return migration is receiving increasing attention, there is still insufficient insight into the factors which determine migrants' intentions and decisions to return. It is often assumed that integration in receiving countries and the concomitant weakening of transnational ties decreases the likelihood of returning. However, according to alternative theoretical interpretations, return migration can also be the outflow of successful integration in receiving countries. Drawing on a data set of four African immigrant groups in Spain and Italy, this articlereviews these conflicting hypotheses by assessing the effects of integration and transnational ties on return migration intentions. The results of the analysis suggest that socio-cultural integration has a negative effect on return migration intentions, while economic integration and transnational ties have more ambiguous and sometimes positive effects. The results provide mixed support for the different hypotheses but question theoretical perspectives that unequivocally conceptualizereturn migration and transnationalism as causes and/or consequences of "integration failure".

  18. Influence of knot configuration and tying technique on the mechanical performance of sutures.

    Science.gov (United States)

    Zimmer, C A; Thacker, J G; Powell, D M; Bellian, K T; Becker, D G; Rodeheaver, G T; Edlich, R F

    1991-01-01

    The purpose of this investigation was to determine the influence of knot configuration and tying technique on the mechanical performance of surgical sutures. Multifilament and monofilament nylon sutures were selected for this evaluation because they are commonly used in wound closure. The mechanical performance of these sutures was judged by the following parameters: knot breakage force, configuration of secure knots, and knot run down force. During each test, tension was applied at either rapid or slow rates, which correlates with the physician's speed of tying knots. On the basis of these mechanical performance tests, four throw square (1 = 1 = 1 =1) knots and five throw square (1 = 1 = 1 = 1 = 1) knots are recommended for monofilament nylon and multifilament nylon sutures, respectively, in which the speed of application of forces to the knots is relatively slow. Because these tests can easily be replicated in any laboratory, manufacturers now have a scientific basis for recommending specific tying techniques for their surgical sutures.

  19. Analysis and design of type b package tie-down systems

    International Nuclear Information System (INIS)

    Phalippou, C.; Tombini, C.; Tanguy, L.

    1993-01-01

    In order to analyse the incidence of tie-down conditions as a cause of road accidents and to advise carriers on methods of calculating the risk, the French Atomic Energy Commission (CEA), within the framework of a research contract financed by the European Community, conducted a survey into road accidents in which B type packages were involved. After analysis of the survey results, the CEA then conducted reduced scale tests on representative models to establish design rules for tie-down systems. These rules have been the subject of various publications and have at last resulted in the production of a software aid to the design and monitoring of tie-down systems. This document states the various stages involved in this work and the way in which the ARRIMAGE software is arranged. (J.P.N.)

  20. Tongue-tie and frenotomy in infants with breastfeeding difficulties: achieving a balance.

    Science.gov (United States)

    Power, R F; Murphy, J F

    2015-05-01

    Currently there is debate on how best to manage young infants with tongue-tie who have breastfeeding problems. One of the challenges is the subjectivity of the outcome variables used to assess efficacy of tongue-tie division. This structured review documents how the argument has evolved. It proposes how best to assess, inform and manage mothers and their babies who present with tongue-tie related breastfeeding problems. Databases were searched for relevant papers including Pubmed, Medline, and the Cochrane Library. Professionals in the field were personally contacted regarding the provision of additional data. Inclusion criteria were: infants less than 3 months old with tongue-tie and/or feeding problems. The exclusion criteria were infants with oral anomalies and neuromuscular disorders. There is wide variation in prevalence rates reported in different series, from 0.02 to 10.7%. The most comprehensive clinical assessment is the Hazelbaker Assessment Tool for lingual frenulum function. The most recently published systematic review of the effect of tongue-tie release on breastfeeding concludes that there were a limited number of studies with quality evidence. There have been 316 infants enrolled in frenotomy RCTs across five studies. No major complications from surgical division were reported. The complications of frenotomy may be minimised with a check list before embarking on the procedure. Good assessment and selection are important because 50% of breastfeeding babies with ankyloglossia will not encounter any problems. We recommend 2 to 3 weeks as reasonable timing for intervention. Frenotomy appears to improve breastfeeding in infants with tongue-tie, but the placebo effect is difficult to quantify. Complications are rare, but it is important that it is carried out by a trained professional. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  1. REGISTRATION OF LASER SCANNING POINT CLOUDS AND AERIAL IMAGES USING EITHER ARTIFICIAL OR NATURAL TIE FEATURES

    Directory of Open Access Journals (Sweden)

    P. Rönnholm

    2012-07-01

    Full Text Available Integration of laser scanning data and photographs is an excellent combination regarding both redundancy and complementary. Applications of integration vary from sensor and data calibration to advanced classification and scene understanding. In this research, only airborne laser scanning and aerial images are considered. Currently, the initial registration is solved using direct orientation sensors GPS and inertial measurements. However, the accuracy is not usually sufficient for reliable integration of data sets, and thus the initial registration needs to be improved. A registration of data from different sources requires searching and measuring of accurate tie features. Usually, points, lines or planes are preferred as tie features. Therefore, the majority of resent methods rely highly on artificial objects, such as buildings, targets or road paintings. However, in many areas no such objects are available. For example in forestry areas, it would be advantageous to be able to improve registration between laser data and images without making additional ground measurements. Therefore, there is a need to solve registration using only natural features, such as vegetation and ground surfaces. Using vegetation as tie features is challenging, because the shape and even location of vegetation can change because of wind, for example. The aim of this article was to compare registration accuracies derived by using either artificial or natural tie features. The test area included urban objects as well as trees and other vegetation. In this area, two registrations were performed, firstly, using mainly built objects and, secondly, using only vegetation and ground surface. The registrations were solved applying the interactive orientation method. As a result, using artificial tie features leaded to a successful registration in all directions of the coordinate system axes. In the case of using natural tie features, however, the detection of correct heights was

  2. FEATURES OF DESIGN OF TIED-ARCH BRIDGES WITH FLEXIBLE INCLINED SUSPENSION HANGERS

    Directory of Open Access Journals (Sweden)

    V. O. Samosvat

    2017-10-01

    Full Text Available Purpose. Investigation and analysis of the hanger arrangement and the structural stability of a Network arch bridge – a tied-arch bridge with inclined hangers that cross each other at least twice. It is also necessary to make a comparative analysis with other types of hanger arrangements. Methodology. The authors in their research investigated a large number of parameters to determine their influence in the force distribution in the arch. Eventually they determined optimal values for all parameters. These optimal values allowed developing a design guide that leads to optimal arch design. When solving this problem, the authors used three-dimensional finite element models and the objective was to determine the most suitable solution for a road bridge, with a span of 100 meters, consisting of two inclined steel arches, located on a road with two traffic lanes, subjected to medium traffic. The virtual prototype of the model is performed by finite element simulator Midas Civil. Findings. In this study, for the bridge deck, a concrete tie appears to be the best solution considering the structural behavior of network arches, but economic advantages caused by easier erection may lead to steel or a composite bridge deck as better alternatives. Design requirements and local conditions of each particular bridge project will decide the most economic deck design.Originality. To ensure passenger comfort and the stability and continuity of the track, deformations of bridges are constricted. A network arch is a stiff structure with small deflections and therefore suitable to comply with such demands even for high speed railway traffic.
A network arch bridge with a concrete tie usually saves more than half the steel required for tied arches with vertical hangers and concrete ties. Practical value. Following the study design advice given in this article leads to savings of about 60 % of structural steel compared with conventional tied arch bridges with

  3. Power and optical communications for long tie-backs

    International Nuclear Information System (INIS)

    Lecroart, A.; Doyle, L.-P.; Michel, R.; Odier, J.-P.

    2009-01-01

    Large volume neutrino telescopes require real time communications back to shore and a sizeable amount of power at the bottom to feed the detectors and the associated electronics. The telecommunications industry has developed a family of cabled products that have been cost optimized over the years. These submarine cables using optical fibres and a single copper conductor are ideal to achieve the transport of signal and energy. Sea return is required but the overall solution is far less expensive than using a bespoke multi-conductor umbilical design. The quality of neutrino detection may require photo-multipliers to be located in a relatively deep area to limit ambient light noise. This may dictate the choice of the location, which may be tens of kilometres away from the land-based station. If this distance is relatively short then high voltage AC powering can be envisaged. Yet the cable capacitance might become an issue for distances beyond 50 km where the amount of power lost in the cable may become too important. Alcatel-Lucent is developing a 10 kV DC solution based on the advent of a new device converting the 10 kV DC into a more usable 350 or 400 V DC user voltage. Alcatel-Lucent believes that a 10 kV DC solution using Medium Voltage Converters can efficiently bring power to areas located up to 600 km from the shore. In this case, repeaters are used to amplify the light signal along the way. Alcatel-Lucent has qualified repeaters able to sustain a permanent line current of up to 8 A.

  4. United States, Europe and Poland Different Stages of Antitrust Tying War in the New Economy

    Directory of Open Access Journals (Sweden)

    Mariusz SWORA

    2006-06-01

    Full Text Available Microsoft’s case has led to heated debates, both in Europe and the United States of America, on the abuse of the dominant position and on the prohibition of tying. This discussion, both in Europe and the United States, is not finished. In this article the author presents legal implications of tying products in Europe and Poland and confronts them with the American approach to tying. In Poland, a country with a fast developing economy, with the growing level of foreign investments, discussion on monopolist practices under the conditions of a fast technological development1 has not really commenced yet. The problems of innovation and development of New Economy undertakings has gained new impetus following Poland’s accession to the European Union. It is a matter of time when the anti-trust law begins to show interest in them. There are some indications that this has already taken place. In the first part of this article the author briefly presents the discussion related to Microsoft III case in the United States insofar as it pertains to New Economy issues. The second and third parts address legal and political aspects of the Microsoft case in the European Union. In the fourth part legal aspects related to tying practices in Poland are presented. The article aims to show that instrumental and mechanical treatment of tying practices used by firms having the market power under conditions of technological progress is not proper. The problem of antitrust analysis of such practices is universal, as universal as these practices are. However, the problem is solved differently in the United States and in Europe and the reasons for such a different approach are rooted in the legal system and policy enforcement. Microsoft antitrust is global. After US and European cases, Korean competition authority has found Microsoft guilty of tying practices2. Regarding Microsoft problems with tying it is necessary to ask the question whether tying practices are

  5. An LLCL Power Filter for Single-Phase Grid-Tied Inverter

    DEFF Research Database (Denmark)

    Wu, Weimin; He, Yuanbin; Blaabjerg, Frede

    2012-01-01

    This paper presents a new topology of higher order power filter for grid-tied voltage-source inverters, named the LLCL filter, which inserts a small inductor in the branch loop of the capacitor in the traditional LCL filter to compose a series resonant circuit at the switching frequency...... to the inverter system control. The parameter design criteria of the proposed LLCL filter is also introduced. The comparative analysis and discussions regarding the traditional LCL filter and the proposed LLCL filter have been presented and evaluated through experiment on a 1.8-kW-single-phase grid-tied inverter...

  6. Different reasons, different results: implications of migration by gender and family status.

    Science.gov (United States)

    Geist, Claudia; McManus, Patricia A

    2012-02-01

    Previous research on migration and gendered career outcomes centers on couples and rarely examines the reason for the move. The implicit assumption is usually that households migrate in response to job opportunities. Based on a two-year panel from the Current Population Survey, this article uses stated reasons for geographic mobility to compare earnings outcomes among job migrants, family migrants, and quality-of-life migrants by gender and family status. We further assess the impact of migration on couples' internal household economy. The effects of job-related moves that we find are reduced substantially in the fixed-effects models, indicating strong selection effects. Married women who moved for family reasons experience significant and substantial earnings declines. Consistent with conventional models of migration, we find that household earnings and income and gender specialization increase following job migration. Married women who are secondary earners have increased odds of reducing their labor supply following migration for job or family reasons. However, we also find that migrating women who contributed as equals to the household economy before the move are no more likely than nonmigrant women to exit work or to work part-time. Equal breadwinner status may protect women from becoming tied movers.

  7. Inside the Family Firm

    DEFF Research Database (Denmark)

    Bennedsen, Morten; Nielsen, Kasper; Pérez-González, Francisco

    2005-01-01

    show that a departing CEO's family characteristics have a strong predictive power in explaining CEO succession decisions: family CEOs are more frequently selected the larger the size of the family, the higher the ratio of male children and when the departing CEOs had only had one spouse. We......This paper uses a unique dataset from Denmark to investigate (1) the role of family characteristics in corporate decision making, and (2) the consequences of these decisions on firm performance. We focus on the decision to appoint either a family or an external chief executive officer (CEO). We...... then analyze the impact of family successions on performance. We overcome endogeneity and omitted variables problems of previous papers in the literature by using the gender of a departing CEO's first-born child as an instrumental variable (IV) for family successions. This is a plausible IV as male first...

  8. Dissolved families

    DEFF Research Database (Denmark)

    Christoffersen, Mogens

    The situation in the family preceding a family separation is studied here, to identify risk factors for family dissolution. Information registers covering prospective statistics about health aspects, demographic variables, family violence, self-destructive behaviour, unemployment, and the spousal...

  9. Convex Modeling of Interactions with Strong Heredity.

    Science.gov (United States)

    Haris, Asad; Witten, Daniela; Simon, Noah

    2016-01-01

    We consider the task of fitting a regression model involving interactions among a potentially large set of covariates, in which we wish to enforce strong heredity. We propose FAMILY, a very general framework for this task. Our proposal is a generalization of several existing methods, such as VANISH [Radchenko and James, 2010], hierNet [Bien et al., 2013], the all-pairs lasso, and the lasso using only main effects. It can be formulated as the solution to a convex optimization problem, which we solve using an efficient alternating directions method of multipliers (ADMM) algorithm. This algorithm has guaranteed convergence to the global optimum, can be easily specialized to any convex penalty function of interest, and allows for a straightforward extension to the setting of generalized linear models. We derive an unbiased estimator of the degrees of freedom of FAMILY, and explore its performance in a simulation study and on an HIV sequence data set.

  10. Patient ties to ambulatory care providers: the concept of provider loyalty.

    Science.gov (United States)

    Kingstrom, P O

    1983-01-01

    This paper introduces a cognitive measure of provider loyalty. Correlates of provider loyalty are investigated, and results are presented comparing provider loyalty with traditionally used measures of patient ties for predicting interest in and choice of a new health care provider. Implications for planning and marketing new forms of ambulatory care delivery systems are discussed and directions for future research are suggested.

  11. The VEGF system and tie-2 are spatio-temporal expressed during tayassu placentation

    DEFF Research Database (Denmark)

    Miglino, M.A.; Santos, T.C.; Papa, P.C.

    for immunhistochemistry using polyclonal antibodies against VEGF, VEGFR-1, VEGFR-2 and Tie-2. Results: In the present study the VEGF-system exhibited intense staining in the uterine epithelium, uterine glandular epithelium and trophoblast. The endothelial cells and smooth muscle cells of the vessels in the maternal...

  12. Impact of Group Emotions on Student Collective Action Tendencies, Ties, and Task Performance

    Science.gov (United States)

    Sundararajan, Malavika; Sundararajan, Binod; Manderson, Jill

    2016-01-01

    The authors tested the dynamics of collective action tendencies of student teams when trying to accomplish a shared goal, with a focus on the impact of member ties and team member interaction and emotional responses on team performance. The results show the direct and indirect impacts of both positive and negative group emotions on the student…

  13. Automated designation of tie-points for image-to-image coregistration.

    Science.gov (United States)

    R.E. Kennedy; W.B. Cohen

    2003-01-01

    Image-to-image registration requires identification of common points in both images (image tie-points: ITPs). Here we describe software implementing an automated, area-based technique for identifying ITPs. The ITP software was designed to follow two strategies: ( I ) capitalize on human knowledge and pattern recognition strengths, and (2) favour robustness in many...

  14. Founding a business inspired by close entrepreneurial ties: Does it matter for survival?

    NARCIS (Netherlands)

    de Jong, J.P.J.; Marsili, O.

    2015-01-01

    Founding a business may be inspired by close entrepreneurial ties, that is, business-owning relatives or friends. We analyze if and when such inspiration is associated with post-entry survival. Drawing on longitudinal data on 942 founders, we find a positive relationship only if founders start by

  15. Predicting a dissociative disorder from type of childhood maltreatment and abuser-abused relational tie.

    Science.gov (United States)

    Krüger, Christa; Fletcher, Lizelle

    2017-01-01

    We investigate the types of childhood maltreatment and abuser-abused relational ties that best predict a dissociative disorder (DD). Psychiatric inpatients (n = 116; mean age = 35; F:M = 1.28:1) completed measures of dissociation and trauma. Abuse type and abuser-abused relational ties were recorded in the Traumatic Experiences Questionnaire. Multidisciplinary team clinical diagnosis or administration of the SCID-D-R to high dissociators confirmed DD diagnoses. Logit models described the relationships between abuser-abused relational tie and the diagnostic grouping of patients, DD present (n = 16) or DD absent (n = 100). Fisher's exact tests measured the relative contribution of specific abuse types. There was a positive relationship between abuse frequency and the presence of DD. DD patients experienced more abuse than patients without DDs. Two combinations of abuse type and relational tie predicted a DD: childhood emotional neglect by biological parents/siblings and later emotional abuse by intimate partners. These findings support the early childhood etiology of DDs and subsequent maladaptive cycles of adult abuse. Enquiries about childhood maltreatment should include a history of emotional neglect by biological parents/siblings. Adult emotional abuse by intimate partners should assist in screening for DDs.

  16. Fuzzy Bayesian Network-Bow-Tie Analysis of Gas Leakage during Biomass Gasification.

    Directory of Open Access Journals (Sweden)

    Fang Yan

    Full Text Available Biomass gasification technology has been rapidly developed recently. But fire and poisoning accidents caused by gas leakage restrict the development and promotion of biomass gasification. Therefore, probabilistic safety assessment (PSA is necessary for biomass gasification system. Subsequently, Bayesian network-bow-tie (BN-bow-tie analysis was proposed by mapping bow-tie analysis into Bayesian network (BN. Causes of gas leakage and the accidents triggered by gas leakage can be obtained by bow-tie analysis, and BN was used to confirm the critical nodes of accidents by introducing corresponding three importance measures. Meanwhile, certain occurrence probability of failure was needed in PSA. In view of the insufficient failure data of biomass gasification, the occurrence probability of failure which cannot be obtained from standard reliability data sources was confirmed by fuzzy methods based on expert judgment. An improved approach considered expert weighting to aggregate fuzzy numbers included triangular and trapezoidal numbers was proposed, and the occurrence probability of failure was obtained. Finally, safety measures were indicated based on the obtained critical nodes. The theoretical occurrence probabilities in one year of gas leakage and the accidents caused by it were reduced to 1/10.3 of the original values by these safety measures.

  17. Fuzzy Bayesian Network-Bow-Tie Analysis of Gas Leakage during Biomass Gasification.

    Science.gov (United States)

    Yan, Fang; Xu, Kaili; Yao, Xiwen; Li, Yang

    2016-01-01

    Biomass gasification technology has been rapidly developed recently. But fire and poisoning accidents caused by gas leakage restrict the development and promotion of biomass gasification. Therefore, probabilistic safety assessment (PSA) is necessary for biomass gasification system. Subsequently, Bayesian network-bow-tie (BN-bow-tie) analysis was proposed by mapping bow-tie analysis into Bayesian network (BN). Causes of gas leakage and the accidents triggered by gas leakage can be obtained by bow-tie analysis, and BN was used to confirm the critical nodes of accidents by introducing corresponding three importance measures. Meanwhile, certain occurrence probability of failure was needed in PSA. In view of the insufficient failure data of biomass gasification, the occurrence probability of failure which cannot be obtained from standard reliability data sources was confirmed by fuzzy methods based on expert judgment. An improved approach considered expert weighting to aggregate fuzzy numbers included triangular and trapezoidal numbers was proposed, and the occurrence probability of failure was obtained. Finally, safety measures were indicated based on the obtained critical nodes. The theoretical occurrence probabilities in one year of gas leakage and the accidents caused by it were reduced to 1/10.3 of the original values by these safety measures.

  18. Application of the Bow Tie method for evaluation of safety in the procedure of logging wells

    International Nuclear Information System (INIS)

    Alfonso Pallares, C; Perez Reyes, Y.; Sarabia Molina, I.I.

    2013-01-01

    This work consists of an assessment of security in the practice of logging of oil wells, using the method of Bow Tie for being a simple method of evaluation of the risk, which makes it possible in a structured way to set priorities to manage risk

  19. The effects of integration and transnational ties on international return migration intentions

    NARCIS (Netherlands)

    de Haas, H.; Fokkema, C.M.

    2011-01-01

    While return migration is receiving increasing attention, there is still insufficient insight into the factors which determine migrants’ intentions and decisions to return. It is often assumed that integration in receiving countries and the concomitant weakening of transnational ties decreases the

  20. Social Support and Social Network Ties among the Homeless in a Downtown Atlanta Park

    Science.gov (United States)

    Reitzes, Donald C.; Crimmins, Timothy J.; Yarbrough, Johanna; Parker, Josie

    2011-01-01

    This study applies a typology of social support with 3 categories of social networks to investigate social ties and their benefits for homeless people. Data were derived from a 2-year long series of participant observations of homeless or precariously housed people who came regularly to a downtown Atlanta public park. The findings are as follows:…

  1. Does it pay to have friends? Social ties and executive appointments in banking

    NARCIS (Netherlands)

    Berger, A.N.; Kick, T.; Koetter, M.; Schaeck, K.

    2013-01-01

    We exploit a unique sample to analyze how homophily (affinity for similar others) and social ties affect career outcomes in banking. We test if these factors increase the probability that the appointee to an executive board is an outsider without previous employment at the bank compared to being an

  2. Practices and risks associated with operation of tie-down lashings in the vehicle transport industry.

    Science.gov (United States)

    Fraysse, François; Milanese, Steven; Thewlis, Dominic

    2016-12-01

    Load restraint systems in automobile transport utilise tie-down lashings placed over the car's tyres, which are tensioned manually by the operator using a ratchet assembly. This process has been identified as a significant manual handling injury risk. The aim of this study was to gain insight on the current practices associated with tie-down lashings operation, and identify the gaps between current and optimal practice. We approached this with qualitative and quantitative assessments and one numerical simulation to establish: (i) insight into the factors involved in ratcheting; (ii) the required tension to hold the car on the trailer; and (iii) the tension achieved by drivers in practice and associated joint loads. We identified that the method recommended to the drivers was not used in practice. Drivers instead tensioned the straps to the maximum of their capability, leading to over-tensioning and mechanical overload at the shoulder and elbow. We identified the postures and strategies that resulted in the lowest loads on the upper body during ratcheting (using both hands and performing the task with their full body). This research marks the first step towards the development of a training programme aiming at changing practice to reduce injury risks associated with the operation of tie-down lashings in the automobile transport industry. Practitioner Summary: The study investigated current practice associated with the operation of tie-down lashings through qualitative (interviews) and quantitative (biomechanical analysis) methods. Operators tended to systematically over-tension the lashings and consequently overexert, increasing injury risks.

  3. An Agent Model for a Human’s Social Support Network Tie Preference During Depression

    NARCIS (Netherlands)

    Aziz, A.A.; Klein, M.C.A.; Treur, J.; Baeza-Yates, R.; Lang, J.; Mitra, S.; Parsons, S.; Pasi, G.

    2009-01-01

    Seeking support from their environment is important for people suffering from a depression. People usually have different social networks to which they are attached with different ties. In this paper, a computational model is presented that describes the selection of network members for seeking

  4. Method and matter in the social sciences: Umbilically tied to the Enlightenment.

    Science.gov (United States)

    Beit-Hallahmi, Benjamin

    2015-01-01

    This commentary deals with the nonconformity of academics and the ethos of social science. Academics in all fields deviate from majority norms in politics and religion, and this deviance may be essential to the academic mind and to academic norms. The Enlightenment legacy inspires both methods and subject matter in academic work, and severing ties with it may be impossible.

  5. "People Are Either Too Fake or Too Real": Opportunities and Challenges in Tie-Based Anonymity

    DEFF Research Database (Denmark)

    Ma, Xiao; Andabili, Nazanin; Barkhuus, Louise

    2017-01-01

    In recent years, several mobile applications allowed individuals to anonymously share information with friends and contacts, without any persistent identity marker. The functions of these “tie-based” anonymity services may be notably different than other social media services. We use semi-structu...

  6. Any Ties that Bind? Economic Diplomacy on the South Asian Subcontinent

    NARCIS (Netherlands)

    S.M. Murshed (Syed); H. Dorussen; H. Ward (Huge)

    2011-01-01

    textabstractThe liberal peace emphasizes the importance of commercial ties and shared norms—of which shared democratic institutions have received most attention—for peaceful interstate relations. Ever since the creation of India and Pakistan in 1947, political relations between the two states have

  7. Stress grades and design properties for lumber, round timber, and ties

    Science.gov (United States)

    David E. Kretschmann

    2010-01-01

    Round timbers, ties, and lumber sawn from a log, regardless of species and size, are quite variable in mechanical properties. Pieces may differ in strength by several hundred percent. For simplicity and economy in use, pieces of wood of similar mechanical properties are placed in categories called stress grades, which are characterized by (a) one or more sorting...

  8. Preservation and Dissolution of the Target Firm's Embedded Ties in Acquisitions

    NARCIS (Netherlands)

    S. Spedale-Latimer (Simona); F.A.J. van den Bosch (Frans); H.W. Volberda (Henk)

    2006-01-01

    textabstractOur study builds on extant theory on embeddness to concentrate on the process of preservation and dissolution of the target firm’s embedded ties in acquisitions. We identify four critical areas - communication, idiosyncratic investments, inter-personal relations and, personnel turnover –

  9. Social ties within school classes : The roles of gender, ethnicity, and having older siblings

    NARCIS (Netherlands)

    Soetevent, AR; Kooreman, P

    2005-01-01

    In this paper we identify the lines along which social ties between high-school teenagers are primarily formed. To this end, we introduce interaction weights between pupils in the same school class that are a function of exogenous individual background characteristics, such as gender, ethnicity, and

  10. Preferential Price and Trade Tied Aid in Fiji: Implications on Price ...

    African Journals Online (AJOL)

    trade-tied-aid is to encourage production thus ensuring that aid money is not wasted on consumption activities ... However, despite receiving such high amount of aid money, the economic performance of most of the ..... pm is the output price, w is vector of input price and z is a vector of exogenous factors. BOJE: Botswana ...

  11. Quantum electrodynamics of strong fields

    International Nuclear Information System (INIS)

    Greiner, W.

    1983-01-01

    Quantum Electrodynamics of Strong Fields provides a broad survey of the theoretical and experimental work accomplished, presenting papers by a group of international researchers who have made significant contributions to this developing area. Exploring the quantum theory of strong fields, the volume focuses on the phase transition to a charged vacuum in strong electric fields. The contributors also discuss such related topics as QED at short distances, precision tests of QED, nonperturbative QCD and confinement, pion condensation, and strong gravitational fields In addition, the volume features a historical paper on the roots of quantum field theory in the history of quantum physics by noted researcher Friedrich Hund

  12. A Dramatic Increase in Tongue Tie-Related Articles: A 67 Years Systematic Review.

    Science.gov (United States)

    Bin-Nun, Alona; Kasirer, Yair M; Mimouni, Francis B

    2017-09-01

    Tongue tie or ankyloglossia articles are recorded in the Medline since 1949. To study trends in yearly number of tongue tie or ankyloglossia publications. Medline search engine was used to determine the yearly number of published consensus statements from 1949 to 2016. Keywords of tongue tie OR ankyloglossia OR frenotomy OR frenulotomy were used for the search. Articles were classified as case reports (or series), reviews, editorials (or opinions), cohort studies, clinical trials (nonrandomized), randomized controlled trials (RCT), and systematic reviews (SR). Linear or polynomial regression was used to determine trends. We also systematically summarized all RCTs published to date. The total number of yearly published articles increased in a cubic fashion (r 2  = 82.6%, p < 0.0001) over time (0-7 per year from 1949 to 1989, and up to 27-44 in the last 5 years). In terms of strength of evidence hierarchy, most articles belonged to low hierarchy categories (case reports 37.9%, reviews 15.4%, and editorials/opinions 13.4%), with only 8 RCTs and 10 SRs (all of them published during the last 10 years of the study period). The yearly number of tongue tie or ankyloglossia-related articles has increased dramatically in past few years. Most articles bring little evidence, but the past few years have witnessed publication of few RCTs and SRs. If this trend continues, much more solid evidence should accumulate about diagnosis and management of tongue tie, as it relates to breastfeeding and other outcomes.

  13. An analysis of the importance of appropriate tie breaking rules in dispatch heuristics

    Directory of Open Access Journals (Sweden)

    Jorge M. S. Valente

    2006-04-01

    Full Text Available In this paper, we analyse the effect of using appropriate tie breaking criteria in dispatch rules. We consider four different dispatch procedures, and for each of these heuristics we compare two versions that differ only in the way ties are broken. The first version breaks ties randomly, while the second uses a criterion that incorporates problem-specific knowledge. The computational results show that using adequate tie breaking criteria improves the performance of the dispatch heuristics. The magnitude of the improvement is different for the four heuristics, and also depends on the characteristics of each specific instance. The use of problem-related knowledge for breaking ties should therefore be given some consideration in the implementation of dispatch rules.Neste artigo é analisado o efeito da utilização de regras de desempate apropriadas na eficácia de regras de despacho. São consideradas quatro regras de despacho diferentes, e para cada uma destas heurísticas são comparadas duas versões que diferem no modo como os empates são resolvidos. A primeira versão resolve os empates de forma aleatória, enquanto a segunda utiliza um critério que incorpora informação relativa ao problema em causa. Os resultados computacionais mostram que a utilização de critérios de desempate adequados melhora o desempenho das regras de despacho. A magnitude da melhoria é diferente para as quatro heurísticas, e depende igualmente das características específicas de cada instância. A utilização de informação relativa ao problema em causa para a resolução de empates deve assim ser considerada na implementação de regras de despacho.

  14. Searching for Wages and Mothering from Afar: The Case of Honduran Transnational Families

    Science.gov (United States)

    Schmalzbauer, Leah

    2004-01-01

    This article draws on data from a 2-year two-country study that included 157 people to explore the survival strategies of poor Honduran transnational families. I argue that transnational families, defined as those divided between two nation-states who have maintained close ties, depend on a cross-border division of labor in which productive labor…

  15. The bright-side and dark-side effects of embedded ties in business-to-business innovation

    NARCIS (Netherlands)

    Noordhoff, C.S.; Kyriakopoulos, K.; Moorman, C.; Pauwels, P.; Dellaert, B.

    2011-01-01

    Although the number and importance of joint innovation projects between suppliers and their customers continue to rise, the literature has yet to resolve a key question: Do embedded ties with customers help or hurt supplier innovation? Drawing on both the tie strength and knowledge literatures, the

  16. 49 CFR 1242.15 - Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast...

    Science.gov (United States)

    2010-10-01

    ... locomotive unit-hours in the common yards. (2) Way: Where the tracks at any one location are used in common..., ties, rails, other track material, ballast, track laying and surfacing, and road property damaged... culverts, ties, rails, other track material, ballast, track laying and surfacing, and road property damaged...

  17. Strong WW Interaction at LHC

    Energy Technology Data Exchange (ETDEWEB)

    Pelaez, Jose R

    1998-12-14

    We present a brief pedagogical introduction to the Effective Electroweak Chiral Lagrangians, which provide a model independent description of the WW interactions in the strong regime. When it is complemented with some unitarization or a dispersive approach, this formalism allows the study of the general strong scenario expected at the LHC, including resonances.

  18. Intra-Family Gamete Donation: A Solution to Concerns Regarding Gamete Donation in China?

    Science.gov (United States)

    Liao, Juhong; Devolder, Katrien

    2016-09-01

    Gamete donation from third parties is controversial in China as it severs blood ties, which are considered of utmost importance in Confucian tradition. In recent years, infertile couples are increasingly demonstrating a preference for the use of gametes donated by family members to conceive children-known as "intra-family gamete donation." The main advantage of intra-family gamete donation is that it maintains blood ties between children and both parents. To date there is no practice of intra-family gamete donation in China. In this paper, we investigate intra-family adoption in China in order to illustrate that intra-family gamete donation is consistent with Confucian tradition regarding the importance of maintaining blood ties within the family. There are several specific ethical issues raised by intra-family gamete donation. It may, for example, result in consanguinity and the semblance of incest, lead to confused family relationships, and raise concerns about possible coercion of familial donors. Confucian tradition provides a new approach to understand and deal with these ethical issues in a way that Western tradition does not. As a result, we suggest intra-family gamete donation could be an acceptable solution to the problem of infertility in China. However, further discussion and open debates on the ethical issues raised by intra-family gamete donation are needed in China.

  19. The ideal restructuring of migrant families in the immigration law

    OpenAIRE

    Encarnación La Spina

    2013-01-01

    The legal configuration of kinship ties in immigration law is governed by a restrictive logic that combines a dependent and nuclear composition with mismatches in the concrete form of managing the distances, the dynamics and the times at origin and destination. The family model in immigration law has an ideal and dominant approach openly excluding other family realities in the social context. Law in an inherent tendency towards the ideal doesn’t allow a legitimate choice between autonomy and ...

  20. Strong-back safety latch

    International Nuclear Information System (INIS)

    DeSantis, G.N.

    1995-01-01

    The calculation decides the integrity of the safety latch that will hold the strong-back to the pump during lifting. The safety latch will be welded to the strong-back and will latch to a 1.5-in. dia cantilever rod welded to the pump baseplate. The static and dynamic analysis shows that the safety latch will hold the strong-back to the pump if the friction clamps fail and the pump become free from the strong-back. Thus, the safety latch will meet the requirements of the Lifting and Rigging Manual for under the hook lifting for static loading; it can withstand shock loads from the strong-back falling 0.25 inch

  1. Strong-back safety latch

    Energy Technology Data Exchange (ETDEWEB)

    DeSantis, G.N.

    1995-03-06

    The calculation decides the integrity of the safety latch that will hold the strong-back to the pump during lifting. The safety latch will be welded to the strong-back and will latch to a 1.5-in. dia cantilever rod welded to the pump baseplate. The static and dynamic analysis shows that the safety latch will hold the strong-back to the pump if the friction clamps fail and the pump become free from the strong-back. Thus, the safety latch will meet the requirements of the Lifting and Rigging Manual for under the hook lifting for static loading; it can withstand shock loads from the strong-back falling 0.25 inch.

  2. Concept of family insufficiency in the aged: critical literature analysis.

    Science.gov (United States)

    de Souza, Alessandra; Pelegrini, Tamara Dos Santos; Ribeiro, João Henrique de Morais; Pereira, Daniele Sirineu; Mendes, Maria Angélica

    2015-01-01

    to identify the attributes of the "family insufficiency" concept of the aged in the literature. critical literature analysis. family insufficiency is characterized as a complex process of psychosocial interaction, founded mainly on low social support of the aged and impaired family ties. Its antecedents are found in contemporary transformations within the family system, intergenerational conflicts, impaired family relationships and social vulnerability of the family. The consequences of family insufficiency include social vulnerability of the aged, decline of psychological and functional health, lower quality of life and unsuccessful aging. An original theoretical proposal was elaborated for the concept of family insufficiency in the elderly, with the identification of its attributes, antecedents and consequences. the findings of this study constitute a theoretical advancement in the Family Insufficiency Syndrome in elderly people and provide data for future field research in developing the concept.

  3. Axions from chiral family symmetry

    International Nuclear Information System (INIS)

    Chang, D.; Pal, P.B.; Maryland Univ., College Park; Senjanovic, G.

    1985-01-01

    We investigate the possibility that family symmetry, Gsub(F), is spontaneously broken chiral global symmetry. We classify the interesting cases when family symmetry can result in an automatic Peccei-Quinn symmetry U(1)sub(PQ) and thus provide a solution to the strong CP problem. The result disfavors having two or four families. For more than four families, U(1)sub(PQ) is in general automatic. In the case of three families, a unique Higgs sector allows U(1)sub(PQ) in the simplest case of Gsub(F)=[SU(3)] 3 . Cosmological consideration also puts strong constraint on the number of families. For Gsub(F)=[SU(N)] 3 cosmology singles out the three-family (N=3) case as a unique solution if there are three light neutrinos. Possible implication of decoupling theorem as applied to family symmetry breaking is also discussed. (orig.)

  4. Titanium: light, strong, and white

    Science.gov (United States)

    Woodruff, Laurel; Bedinger, George

    2013-01-01

    Titanium (Ti) is a strong silver-gray metal that is highly resistant to corrosion and is chemically inert. It is as strong as steel but 45 percent lighter, and it is twice as strong as aluminum but only 60 percent heavier. Titanium dioxide (TiO2) has a very high refractive index, which means that it has high light-scattering ability. As a result, TiO2 imparts whiteness, opacity, and brightness to many products. ...Because of the unique physical properties of titanium metal and the whiteness provided by TiO2, titanium is now used widely in modern industrial societies.

  5. O discurso e o laço social dos meninos de rua Street boys discourse and social ties

    Directory of Open Access Journals (Sweden)

    Miriam Debieux Rosa

    1999-01-01

    Full Text Available O artigo relata pesquisa que quer compreender como a constituição subjetiva de crianças e adolescentes que vivem na rua, os chamados meninos de rua, articula-se ao laço social, a partir da especificidade da escuta psicanalítica de crianças e adolescentes. Um processo de desqualificação e desvalorização social da família destes jovens, propicia a ruptura destes com a família e escola, levando-os para a rua. Tal ruptura faz surgir o discurso social, que substitui o discurso dos pais, de onde poderiam extrair os significantes de sua filiação e sexuação, e destitui estes meninos do lugar de crianças e adolescentes, justifica o abandono, o descaso e o medo, e oferece-lhes como única possibilidade de nomeação a identidade de delinqüente.The article reports a research on how the subjective constitution of children and adolescents who live on the streets, known as street kids, relate to the social ties, based on the specific psychoanalical hearing of children and adolescents. A process of social disqualification and depreciation of these children’s families, conducts them to break up with their families and schools, leading them to the streets. This rupture brings the social address about, which substitutes the parents address, from which they could take the meaning of their filiation and sexuality. This rupture also deprives them of the condition of being children and adolescents, justifying the abandonment, the neglect and the fear and offering them the only possibility of an identity as a delinquent.

  6. Tying Knots

    DEFF Research Database (Denmark)

    Bødker, Susanne; Dindler, Christian; Iversen, Ole Sejer

    2017-01-01

    dispersed within these networks. To illustrate and discuss the process of participatory infrastructuring we use a case study from an educational context. This particular project contains a diverse set of design activities at many organizational levels revolving around technology, decision-making, competence...... of the literature on infrastructuring, participatory design, and activity theory, and leads to a revised understanding of, for example, learning and conflicts in participatory infrastructuring....

  7. Family Issues

    Science.gov (United States)

    ... and grandparents raise grandchildren. Some children live in foster families, adoptive families, or in stepfamilies. Families are much more than groups of people who share the same genes or the ...

  8. Family History

    Science.gov (United States)

    Your family history includes health information about you and your close relatives. Families have many factors in common, including their genes, ... as heart disease, stroke, and cancer. Having a family member with a disease raises your risk, but ...

  9. Family Arguments

    Science.gov (United States)

    ... Spread the Word Shop AAP Find a Pediatrician Family Life Medical Home Family Dynamics Adoption & Foster Care ... Life Listen Español Text Size Email Print Share Family Arguments Page Content Article Body We seem to ...

  10. Family Therapy

    Science.gov (United States)

    ... relating to each other Set individual and family goals and work on ways to achieve them Results Family therapy doesn't automatically solve family conflicts or make an unpleasant situation go away. But ...

  11. The weak-ties in advanced business services as a major force of innovation and diffusion; Las Eak-Ties en los servicios avanzados a empresas como factor relevante de la innovacion y su difusion

    Energy Technology Data Exchange (ETDEWEB)

    Almenar i Llongo, V.; Hernandez Sancho, F.; Solar i Marco, V.

    2012-07-01

    This paper tries to expose the role of weak-ties of advanced business services in both mechanisms which generate innovation as well as allow technological diffusion and transfer of innovations (spillovers). Assuming that the latest information generally flows to agents through weak ties, the Weak-Ties Hypothesis (WTH) is an approach that helps to explain the importance of the relations with the environment in the process of innovation and generation of new knowledge and its implementation and dissemination, evaluating the synergy's resulting from cooperation between agents. (Author) 21 refs.

  12. Passivity Enhancement of Grid-Tied Converter by Series LC-Filtered Active Damper

    DEFF Research Database (Denmark)

    Bai, Haofeng; Wang, Xiongfei; Loh, Poh Chiang

    2015-01-01

    Series LC-filtered active damper can be used to stabilize the grid-tied voltage source converter in a non-ideal grid. The operation principle of the active damper is to mimic a damping resistance at the resonance frequencies. However, the selection of the damping resistance has not received much...... attention. Also, parasitic capacitance of the grid transmission line brings new challenge for the application of an active damper, which has not been discussed before. In order to fill these gaps, this paper first analyzes the stability of a grid-tied converter with the help of passivity. Based...... on the passivity-based-stability analysis, a damping resistance selection method is proposed. Then, an admittance shaping method is developed to ensure the system stability in the presence of parasitic capacitance of the transmission line. Finally, experimental results are provided to show the validity...

  13. Silicon-on-insulator field effect transistor with improved body ties for rad-hard applications

    Science.gov (United States)

    Schwank, James R.; Shaneyfelt, Marty R.; Draper, Bruce L.; Dodd, Paul E.

    2001-01-01

    A silicon-on-insulator (SOI) field-effect transistor (FET) and a method for making the same are disclosed. The SOI FET is characterized by a source which extends only partially (e.g. about half-way) through the active layer wherein the transistor is formed. Additionally, a minimal-area body tie contact is provided with a short-circuit electrical connection to the source for reducing floating body effects. The body tie contact improves the electrical characteristics of the transistor and also provides an improved single-event-upset (SEU) radiation hardness of the device for terrestrial and space applications. The SOI FET also provides an improvement in total-dose radiation hardness as compared to conventional SOI transistors fabricated without a specially prepared hardened buried oxide layer. Complementary n-channel and p-channel SOI FETs can be fabricated according to the present invention to form integrated circuits (ICs) for commercial and military applications.

  14. UWB Bi-directional Bow-tie antenna loaded by rings

    Science.gov (United States)

    Peng, Lin; Sun, Kai; Xie, Ji-yang; Qiu, Yu-jie; Jiang, Xing

    2016-07-01

    Performances of bow-tie antennae can be improved by loading a ring. Specially, the distorted radiation patterns of the reference bow-tie antenna (RBA) at high frequencies become less distorted when a ring is added. That is due to the disciplined current flows trained by the ring. Furthermore, when more rings are loaded, which act as reflectors, higher directivities are obtained and, patterns become bi-directional. Antennae with no ring (RBA), one ring, two rings (three cases), three rings, and four rings are investigated. Research find that loading more rings means better directivity. The directivity of the RBA varies from 2.29 dB to 3.66 dB for the frequency band from 2.5 to 7.5 GHz while the directivity for the four-ring-loaded case varies from 4.27 dB to 7.61 dB in that frequency band.

  15. FAILURES AND DEFECTS IN THE BUILDING PROCESS – APPLYING THE BOW-TIE APPROACH

    DEFF Research Database (Denmark)

    Jørgensen, Kirsten

    2009-01-01

    site was observed from the very start to the very end and all failures and defects of a certain size were recorded and analysed. The methodological approach used in this analysis was the bow-tie model from the area of safety research. It combines critical-event analysis for both causes and effects...... with event-tree analysis. The paper describes this analytical approach as an introduction to a new concept for understanding failures and defects in construction. Analysing the many critical events in the building process with the bow-tie model visualises the complexity of causes. This visualisation offers...... the possibility for a much more direct and focused discussion of what needs doing, by whom and when – not only to avoid the number of defects in the final product, but also to make the building process flow much better and reduce the need for damage control....

  16. Utility-scale grid-tied PV inverter reliability workshop summary report.

    Energy Technology Data Exchange (ETDEWEB)

    Granata, Jennifer E.; Quintana, Michael A.; Tasca, Coryne Adelle (SRA International, Inc., Fairfax, VA); Atcitty, Stanley

    2011-07-01

    A key to the long-term success of the photovoltaic (PV) industry is confidence in the reliability of PV systems. Inverters are the most commonly noted cause of PV system incidents triggered in the field. While not all of these incidents are reliability-related or even necessarily failures, they still result in a loss of generated power. With support from the U.S. Department of Energy's Solar Energy Technologies Program, Sandia National Laboratories organized a Utility-Scale Grid-Tied Inverter Reliability Workshop in Albuquerque, New Mexico, January 27-28, 2011. The workshop addressed the reliability of large (100-kilowatt+) grid-tied inverters and the implications when such inverters fail, evaluated inverter codes and standards, and provided discussion about opportunities to enhance inverter reliability. This report summarizes discussions and presentations from the workshop and identifies opportunities for future efforts.

  17. Dendrometer bands made easy: using modified cable ties to measure incremental growth of trees

    Science.gov (United States)

    Anemaet, Evelyn R.; Middleton, Beth A.

    2013-01-01

    Dendrometer bands are a useful way to make sequential repeated measurements of tree growth, but traditional dendrometer bands can be expensive, time consuming, and difficult to construct in the field. An alternative to the traditional method of band construction is to adapt commercially available materials. This paper describes how to construct and install dendrometer bands using smooth-edged, stainless steel, cable tie banding and attachable rollerball heads. As a performance comparison, both traditional and cable tie dendrometer bands were installed on baldcypress trees at the National Wetlands Research Center in Lafayette, Louisiana, by both an experienced and a novice worker. Band installation times were recorded, and growth of the trees as estimated by the two band types was measured after approximately one year, demonstrating equivalence of the two methods. This efficient approach to dendrometer band construction can help advance the knowledge of long-term tree growth in ecological studies.

  18. Analysis of Silver Ink Bow-Tie RFID Tag Antennas Printed on Paper Substrates

    Directory of Open Access Journals (Sweden)

    Sari Merilampi

    2007-01-01

    Full Text Available In this study, polymeric silver inks, paper substrates, and screen printing were used to produce prototype Bow-Tie tags. Because of increasing interest in applying passive UHF-RFID systems in paper industry, the Bow-Tie antenna used in this study was designed to work through paper. The maximum reliable read ranges of the tags were measured thorough stacked paper and also in air. The analysis and functioning of the antenna design are also discussed. All inks and paper substrates were suitable as antenna material and the prototype tag antennas had good reading performance. The maximum reliable read ranges were quite the same as for copper and aluminum tags studied elsewhere. This means that printed UHF tags are competitive solutions for the identification of simple mass products.

  19. Circulating angiopoietin-2 and soluble Tie-2 in type 2 diabetes mellitus: a cross-sectional study

    Directory of Open Access Journals (Sweden)

    Wagner Ludwig

    2011-06-01

    Full Text Available Abstract Background Type 2 diabetes is associated with increased levels of Angiopoietin-2 (Ang-2 and soluble Tie-2 (sTie-2, but its impact on vascular disease is still unknown. This study aimed to further explore the associations of Ang-2 and sTie-2 with metabolic control and diabetic complications. Methods In a cross-sectional designed study, levels of Ang-2 and sTie-2 as well as their relationships to cardiometabolic parameters were determined in 80 type 2 diabetic subjects (age 65 ± 7 years, female 47.4%. Results After controlling for age and BMI, Ang-2 levels were associated with levels of sTie-2, diastolic blood pressure, plasma insulin, homeostasis model assessment of insulin resistance (HOMA-IR, creatinine, glomerular filtration rate (GFR, and gamma-glutamyl transferase (GGT (all p 1c, fasting plasma glucose and insulin, HOMA-IR, triglyceride, and liver function parameters (all p 1c, insulin levels, and HOMA-IR (p Conclusions Ang-2 is independently associated with levels of GGT while sTie-2 is independently associated with levels of HbA1c, plasma insulin and HOMA-IR in type 2 diabetic subjects. Therefore we suggest that the associations of Ang-2 and sTie-2 with type 2 diabetes are based on different patho-physiological mechanisms.

  20. Twist1 controls lung vascular permeability and endotoxin-induced pulmonary edema by altering Tie2 expression.

    Science.gov (United States)

    Mammoto, Tadanori; Jiang, Elisabeth; Jiang, Amanda; Lu, Yongbo; Juan, Aimee M; Chen, Jing; Mammoto, Akiko

    2013-01-01

    Tight regulation of vascular permeability is necessary for normal development and deregulated vascular barrier function contributes to the pathogenesis of various diseases, including acute respiratory distress syndrome, cancer and inflammation. The angiopoietin (Ang)-Tie2 pathway is known to control vascular permeability. However, the mechanism by which the expression of Tie2 is regulated to control vascular permeability has not been fully elucidated. Here we show that transcription factor Twist1 modulates pulmonary vascular leakage by altering the expression of Tie2 in a context-dependent way. Twist1 knockdown in cultured human lung microvascular endothelial cells decreases Tie2 expression and phosphorylation and increases RhoA activity, which disrupts cell-cell junctional integrity and increases vascular permeability in vitro. In physiological conditions, where Ang1 is dominant, pulmonary vascular permeability is elevated in the Tie2-specific Twist1 knockout mice. However, depletion of Twist1 and resultant suppression of Tie2 expression prevent increase in vascular permeability in an endotoxin-induced lung injury model, where the balance of Angs shifts toward Ang2. These results suggest that Twist1-Tie2-Angs signaling is important for controlling vascular permeability and modulation of this mechanism may lead to the development of new therapeutic approaches for pulmonary edema and other diseases caused by abnormal vascular permeability.

  1. Religious and Non-religious Activity Engagement as Assets in Promoting Social Ties Throughout University: The Role of Emotion Regulation.

    Science.gov (United States)

    Semplonius, Thalia; Good, Marie; Willoughby, Teena

    2015-08-01

    Emerging adulthood is a time of many changes. For example, one change that occurs for a subset of emerging adults is leaving home and starting university. Importantly, the creation of social ties can aid in promoting positive adjustment during university. This study investigated whether involvement in religious activities promotes social ties among university students directly and/or indirectly through emotion regulation. Importantly, involvement in religious activities may promote self-regulatory skills, and the ability to effectively regulate emotions can aid in navigating social interactions. To rule out potentially important confounding variables, spirituality and involvement in non-religious clubs were statistically controlled in all analyses. The participants included 1,132 university students (70.5 % female) from a university in Ontario, Canada who were surveyed each year over a period of 3 years. The results indicated that involvement in religious activities indirectly predicted more social ties over time through emotion regulation. Spirituality did not predict social ties or emotion regulation. Furthermore, non-religious clubs directly predicted more social ties over time. Thus, although involvement in religious and non-religious activities both predicted more social ties in a university setting over time, the mechanism by which these activities promote social ties differed.

  2. ESPRIT Based Robust Anti-Islanding Algorithm for Grid-Tied Inverter

    OpenAIRE

    Patra, Sandipan

    2016-01-01

    Abstract—This paper presents an anti-islanding protection scheme for a grid tied inverter. In this scheme, the oscillation variation in frequency is estimated by Estimation of Signal Parameters via Rotational Invariant Technique (ESPRIT). The proposed system is implemented in MATLAB and real time in OPAL-RT. Series of simulation results demonstrate that nondetection zone of proposed algorithm is negligible, and the scheme is also free from nuisance tripping to other transient events.

  3. Performance analysis of new type grid-tied inverter-Aalborg Inverter

    DEFF Research Database (Denmark)

    Wu, Weimin; Wang, Zhen; Ji, Junhao

    2014-01-01

    Aalborg Inverter is a grid-tied DC/AC inverter. In order to optimize the design, its power losses are analyzed in detail, combined with a description of the single-phase operating principle and the modulation strategy. A 2 kW / 220 V experimental prototype is constructed to verify the theoretical...... analysis. It is concluded that a minimize inductance in the power loop does help the inverter to achieve the high efficiency with the good dynamic performance....

  4. Effect of summer grazing on welfare of dairy cows reared in mountain tie-stall barns

    Directory of Open Access Journals (Sweden)

    Simonetta Dovier

    2010-09-01

    Full Text Available Traditional mountain farms have an important economic, social and environmental role. The Alps management system for dairy cows consists of animals kept indoors from autumn to spring, mostly in tie-stalls, and moved to mountain pasture in summer. The aim of our study was to assess the effect of mountain summer grazing on the welfare of dairy cows housed in tie-stall barns. Twenty-four farms were considered. In twelve of them, animals were reared in tie-stalls and moved to mountain pasture for three months in summer; they were visited three times: (i four weeks before grazing during the indoor period in the stall; (ii about three weeks after the start of grazing; and (iii in the stall, in autumn, at least three weeks after returning from grazing. The other twelve farms kept the animals in tie-stalls all year; they were visited once in autumn. Data were collected following a protocol that considers animal-based measures and structure information on the basis of Quality Welfare Consortium® indications. Data allowed the calculation of both the Animal Needs Index score (ANI 35L and an overall assessment of the cows’ welfare obtained from three general aspects: housing, animal’s physical condition, and animal’s behaviour. Summer grazing had a significant positive effect on injuries, lameness and animal’s rising duration but a negative effect on faeces consistency. Moreover, a reduction of tongue playing was observed. The ANI 35L and the overall assessment did not show significant differences linked to summer grazing, which tended to have a positive but temporary effect on animal behaviour.

  5. Tie-2 is overexpressed by monocytes in autoimmune thyroid disorders and participates in their recruitment to the thyroid gland.

    Science.gov (United States)

    Figueroa-Vega, Nicté; Alfonso-Pérez, Manuel; Cuesta-Mateos, Carlos; Sánchez-Madrid, Francisco; Moreno-Otero, Ricardo; González-Amaro, Roberto; Marazuela, Mónica

    2009-07-01

    The angiopoietin/Tie system seems to have an important role in the pathogenesis of inflammatory diseases. Although Tie-2 is mainly expressed by endothelium, it is also detected in monocytes, which participate in the development of angiogenic and inflammatory phenomena. The aim was to study the expression and function of Tie-2 and their ligands, angiopoietin-1 (Ang-1) and Ang-2, in thyroid glands and monocytes from patients with autoimmune thyroid disease (AITD). We studied the expression of Tie-2, Ang-1, and Ang-2 by immunohistochemical techniques in surgical thyroid tissues from 17 patients with Graves' disease, 8 with Hashimoto's thyroiditis, and 3 healthy glands. In addition, we explored the expression and function of Tie-2 in peripheral blood monocytes from 17 patients with Graves' disease, 11 with Hashimoto's thyroiditis, and 14 healthy controls. We found that the expression of Ang-1, Ang-2, and Tie-2 was up-regulated in thyroid glands from AITD patients. Flow cytometry, immunofluorescence, ELISA, and RT-PCR analyses confirmed the synthesis and release of Ang-1, Ang-2, and Tie-2 by thyroid follicular cells (TFC) from AITD patients. In addition, these patients showed increased levels of Tie-2(+) monocytes in the peripheral blood, which exhibited an enhanced chemotactic response to Ang-2 or autologous TFC. Our data suggest that the Ang/Tie-2 system, through the participation of blood vessels, inflammatory cells, and TFC, may have an important role in the recruitment of monocytes to the thyroid gland and the pathogenesis of the tissue damage seen in AITD.

  6. New insights into the clinical signs of supraventricular tachycardia: The "sign of lace-tying".

    Science.gov (United States)

    Blommaert, Dominique; Dormal, Fabien; Deceuninck, Olivier; Xhaet, Olivier; Ballant, Elisabeth; De Roy, Luc

    2018-01-01

    Supraventricular tachycardias (SVT) are a common arrhythmia therefore an accurate diagnosis is of clinical importance. Although an ECG performed during tachycardia greatly aids diagnosis, patient history and predisposing factors also improve diagnostic accuracy. This prospective study included 100 consecutive patients undergoing electrophysiological study for SVT with the aim to reassess their clinical characteristics and describe frequent predisposing factors, such as the "sign of lace-tying" that to our knowledge has not previously been reported. Each patient completed an extensive questionnaire (70 questions) during their hospital stay. Our series comprised: 67% of patients with atrioventricular nodal reentrant tachycardia (AVNRT); 24% with an accessory pathway; and 9% presented atrial tachycardia. Half of the population were male and 29% of the cohort presented hypertension. Syncope during tachycardia appeared in 15% of patients, dizziness in 52% and thoracic pain in 59%. We encountered a predisposing risk factor for SVT in 53% of cases; with 32% exhibiting an anteflexion of the trunk termed the "sign of lace-tying." Data also showed that younger patients tended to present AVRT and regular pounding in the neck appeared only in patients with AVNRT. Overall, our study has highlighted the importance of considering clinical signs and patient characteristics both before and during SVT for the precise diagnosis of paroxysmal SVT. Furthermore, 32% of patients presented the "sign of lace-tying" or body position change before SVT, implying a diagnosis of SVT. © 2017 Wiley Periodicals, Inc.

  7. Understanding the process of social network evolution: Online-offline integrated analysis of social tie formation.

    Science.gov (United States)

    Kwak, Doyeon; Kim, Wonjoon

    2017-01-01

    It is important to consider the interweaving nature of online and offline social networks when we examine social network evolution. However, it is difficult to find any research that examines the process of social tie formation from an integrated perspective. In our study, we quantitatively measure offline interactions and examine the corresponding evolution of online social network in order to understand the significance of interrelationship between online and offline social factors in generating social ties. We analyze the radio signal strength indicator sensor data from a series of social events to understand offline interactions among the participants and measure the structural attributes of their existing online Facebook social networks. By monitoring the changes in their online social networks before and after offline interactions in a series of social events, we verify that the ability to develop an offline interaction into an online friendship is tied to the number of social connections that participants previously had, while the presence of shared mutual friends between a pair of participants disrupts potential new connections within the pre-designed offline social events. Thus, while our integrative approach enables us to confirm the theory of preferential attachment in the process of network formation, the common neighbor theory is not supported. Our dual-dimensional network analysis allows us to observe the actual process of social network evolution rather than to make predictions based on the assumption of self-organizing networks.

  8. Improvement and Application of the Softened Strut-and-Tie Model

    Science.gov (United States)

    Fan, Guoxi; Wang, Debin; Diao, Yuhong; Shang, Huaishuai; Tang, Xiaocheng; Sun, Hai

    2017-11-01

    Previous experimental researches indicate that reinforced concrete beam-column joints play an important role in the mechanical properties of moment resisting frame structures, so as to require proper design. The aims of this paper are to predict the joint carrying capacity and cracks development theoretically. Thus, a rational model needs to be developed. Based on the former considerations, the softened strut-and-tie model is selected to be introduced and analyzed. Four adjustments including modifications of the depth of the diagonal strut, the inclination angle of diagonal compression strut, the smeared stress of mild steel bars embedded in concrete, as well as the softening coefficient are made. After that, the carrying capacity of beam-column joint and cracks development are predicted using the improved softened strut-and-tie model. Based on the test results, it is not difficult to find that the improved softened strut-and-tie model can be used to predict the joint carrying capacity and cracks development with sufficient accuracy.

  9. Relational benefits and quality of relation – towards understanding of the ties between science and business

    Directory of Open Access Journals (Sweden)

    Małgorzata Grzegorczyk

    2016-06-01

    Full Text Available The goal of this article is to answer the question in what way relational marketing and in particular, the concept of relational benefits, as well as quality of relation may influence the transfer of knowledge and technologies from universities to business. Another goal is to highlight significant, future directions of research in this area. Integration of the theory of relational marketing and technology transfer may create a new framework for fuller understanding of the ties between science and business. Research in this area may contribute to the expansion and development of the theory of relational marketing, which until now was limited to the analysis of relations within a single sector. The results of conducted research show that ties characterized by high relational engagement are common, recognized by both academic and business environment as precious and play an important role in stimulating innovations. The quality of relations and relational benefits may play an important role in building long-term ties between universities and the industry. Integration of behavioural theories with the theory of technology transfer may contribute to a better understanding of the behaviour of particular participants of the transfer on the individual level.

  10. Stories of Change: TieVie - The Support Service for Finnish Universities Toward the Information Society

    Science.gov (United States)

    Kairamo, Anna-Kaarina; Sinko, Matti

    In this article, the authors discuss and evaluate the TieVie capacity building project for Finnish universities in a larger historical context of strategic developments in the use of information and communications technology (ICT) in learning. The TieVie project was a support service project for the Finnish Virtual University (FVU) which offered training in the educational use of ICT to the staff of Finnish universities in 2001-2008. It was financed by the Ministry of Education as part of the Virtual University project funding till the end of 2006. During 2007-2008, the program was fee-funded. The project was designed and implemented by the educational development support service units of five universities: Universities of Oulu, Turku, Jyväskylä, and Helsinki, and Helsinki University of Technology. The TieVie project was launched on the basis of the need to strengthen the e-Learning skills and expertise among Finnish university staff. This need was recognized in the national strategy for education, training, and research in the information society outlined by the Ministry of Education in 2000.

  11. A Tie-Over Dressing Using a Silicone Tube to Graft Deep Wounds

    Directory of Open Access Journals (Sweden)

    Cem Inan Bektas

    2013-11-01

    Full Text Available BackgroundThe most common cause of skin graft failure is the collection of blood or serous fluid underneath the graft. In our study, we describe the use of silicone tube for tie-over dressing to secure the skin graft margins with the aim of decreasing loss of the skin graft, particularly in grafting of deep wounds.MethodsBetween March 2008 and July 2011, we used this technique in 17 patients with skin defects with depths ranging from 3.5 to 8 mm (mean, 5.5 mm. First, the skin graft was sutured with 3/0 silk suture material from its corners. Then, a silicone round drain tube was sutured with 3/0 absorbable polyglactin 910 over the margins of the graft. Finally, long silk threads were tied over the bolus dressing, and the tie-over dressing was completed in the usual fashion.ResultsThe mean follow-up was 7 months (range, 2-10 months in the outpatient clinic. Graft loss on the graft margins due to hematoma or seroma was not developed. The results of adhesion between the graft and wound bed peripherally was excellent.ConclusionsIn our study, we suggest that use of a silicone tube for additional pressure on the edges of skin grafts in case of reconstruction of deep skin defects.

  12. One Step Solution to the Local Tie Vectors of GNSS/SLR in ITRF

    Directory of Open Access Journals (Sweden)

    MA Xiaping

    2018-01-01

    Full Text Available This paper proposes a one-step solution of local tie vectors,the solution takes RP (Reference Point and axes offsets of SLR telescope as unknown parameters,GNSS baselines network and conventional terrestrial observation (horizontal,vertical angle and distance are combined in ITRF (International Terrestrial Reference Frame,and multiply constraint conditions are established between RP and observation marks and two axes offsets.Local tie vectors and related covariance matrices of the 3 co-located sites in Beijing,Kunming,Xi'an of CMONOC (Crustal Movement Observation Network of China are solved with the proposed one step solution.The results show that the RMS (root mean square error of local tie vectors is less than 2.0 mm.Besides,the differences are less than 2.0 mm compared with the traditional step by step solution,and the offsets and corresponding RMS between the horizontal axis and vertical axis are 3.8 mm,0.7 mm,3.6 mm and 1.3 mm,1.2 mm,1.3 mm,respectively.

  13. Risk analysis of urban gas pipeline network based on improved bow-tie model

    Science.gov (United States)

    Hao, M. J.; You, Q. J.; Yue, Z.

    2017-11-01

    Gas pipeline network is a major hazard source in urban areas. In the event of an accident, there could be grave consequences. In order to understand more clearly the causes and consequences of gas pipeline network accidents, and to develop prevention and mitigation measures, the author puts forward the application of improved bow-tie model to analyze risks of urban gas pipeline network. The improved bow-tie model analyzes accident causes from four aspects: human, materials, environment and management; it also analyzes the consequences from four aspects: casualty, property loss, environment and society. Then it quantifies the causes and consequences. Risk identification, risk analysis, risk assessment, risk control, and risk management will be clearly shown in the model figures. Then it can suggest prevention and mitigation measures accordingly to help reduce accident rate of gas pipeline network. The results show that the whole process of an accident can be visually investigated using the bow-tie model. It can also provide reasons for and predict consequences of an unfortunate event. It is of great significance in order to analyze leakage failure of gas pipeline network.

  14. Tissue reactions induced by nylon cable tie used to clamp ovarian pedicles

    Directory of Open Access Journals (Sweden)

    Luiz Fernando Moraes Moreira

    2018-03-01

    Full Text Available The aim of this study was to evaluate the tissue reactions induced by nylon cable tie by using macroscopic and histological evaluations. Forty-five clinically healthy crossbreed female dogs, 31.11 ± 14.26 months old and with a body weight of 11.26 ± 4.7 kg, underwent ovariohysterectomy using a minimally invasive procedure. The dogs were randomly divided into three groups of 15 animals each and were evaluated preoperatively, and at 30 (G1, 60 (G2 and 90 days (G3 after surgery. The histological examination of the pedicles containing the nylon cable ties, collected from five animals in each group, showed a chronic inflammatory reaction with the presence of macrophages, giant cells and fibroplasia on the 30th postoperative day. Well-organized connective tissue and presence of lymphocytes and polymorphonuclear leukocytes were seen on the 60th postoperative day, and mature connective tissue and presence of macrophages and lymphocytes were seen at 90 days. Nylon cable ties induce an inflammatory reaction, which should be considered due to the risk of interference with surrounding structures.

  15. Finite element analyses of continuous filament ties for masonry applications : final report for the Arquin Corporation.

    Energy Technology Data Exchange (ETDEWEB)

    Quinones, Armando, Sr. (Arquin Corporation, La Luz, NM); Bibeau, Tiffany A.; Ho, Clifford Kuofei

    2008-08-01

    Finite-element analyses were performed to simulate the response of a hypothetical vertical masonry wall subject to different lateral loads with and without continuous horizontal filament ties laid between rows of concrete blocks. A static loading analysis and cost comparison were also performed to evaluate optimal materials and designs for the spacers affixed to the filaments. Results showed that polypropylene, ABS, and polyethylene (high density) were suitable materials for the spacers based on performance and cost, and the short T-spacer design was optimal based on its performance and functionality. Simulations of vertical walls subject to static loads representing 100 mph winds (0.2 psi) and a seismic event (0.66 psi) showed that the simulated walls performed similarly and adequately when subject to these loads with and without the ties. Additional simulations and tests are required to assess the performance of actual walls with and without the ties under greater loads and more realistic conditions (e.g., cracks, non-linear response).

  16. Metabolic flexibility of the Fe(II)-oxidizing phototropic strain Rhodopseudomonas palustris TIE1 and its potential role in microbial iron cycling

    Science.gov (United States)

    Schmidt, C.; Oswald, K.; Melton, E. D.; Kappler, A.

    2012-04-01

    The biogeochemical conversion of iron(II) and iron(III) is widespread in many aquatic and terrestrial environments. In the anoxic regime of soils and sediments the conversion and alternation of the iron redox state is predominantly run by microorganisms that are thought to gain life-sustaining energy by the oxidation and/or reduction of ferrous/ferric components. The spatial arrangement of microbial iron(II) oxidation and iron(III) reduction is largely controlled by the availability of the required electron acceptor and electron donor, as well as the essential source of energy (i.e. light or chemical energy). The physico-chemical patterns of many microbial environments undergo dynamic variations (i.e. diurnal and seasonal changes) as a function of natural external forces (i.e. seasonality, storm events, algae blooms) which strongly affects the local budget of organic carbon and nutrients, as well as the day light penetration. Such fluctuations force microorganisms either to follow the flow of substrate or to switch their metabolism to alternative electron acceptors and/or donors. Different photoferrotrophic bacteria have been shown to be able to grow either on organic (heterotrophic) or inorganic (autotrophic) substrates while exploiting light as their energy source. Within the frame of this study the preference for organic substrates (lactate and acetate) and/or ferrous iron (in simultaneous presence) for photo(ferro)trophic growth of Rhodopseudomonas palustris TIE1 has been investigated in detail. Rates of iron oxidation, acetate/lactate consumption and growth have been followed over time as a function of different lactate to acetate to iron(II) ratios. Additional experiments have been designed to evaluate the potential of Rhodopseudomonas palustris TIE1 to contribute to the redox cycling of iron. TIE1 has been grown in a batch set-up in which the iron(III)-reducing strain Shewanella oneidensis MR1 has been incubated at different ferrihydrite concentrations in

  17. The concept of the family and its function

    Directory of Open Access Journals (Sweden)

    Denada Keçiçi

    2016-07-01

    Full Text Available The family in the broadest sense includes family in the strict sense and people of the opposite gender. There is no accepted definition of the notion of family, since its very concept has undergone continuous changes in time and space (Omari, 2010, 28. If we refer to historical periods, we see that the concept of family has been different compared to its contemporary meaning. Originally a family relationship was based on consanguinity. The family in the narrow sense: derives from marriage, members are united because of the legal ties of marriage (husband and wife, and blood (parent-child. Unlike the sociological concept in the legal sense, family represents the group of persons among which the legal provisions predict rights and obligations. The family is normally a group of people related by marriage; extramarital cohabitation, or gender related, among whom the law or they themselves determine their rights and obligations.

  18. The Context of Collecting Family Health History: Examining Definitions of Family and Family Communication About Health Among African American Women

    Science.gov (United States)

    THOMPSON, TESS; SEO, JOANN; GRIFFITH, JULIA; BAXTER, MELANIE; JAMES, AIMEE; KAPHINGST, KIMBERLY A.

    2015-01-01

    Public health initiatives encourage the public to discuss and record family health history (FHH) information, which can inform prevention and screening for a variety of conditions. Most research on FHH discussion and collection, however, has involved predominantly White participants and has not considered lay definitions of family or family communication patterns about health. This qualitative study of 32 African American women, 16 with a history of cancer, analyzed participants’ definitions of family, family communication about health, and collection of FHH information. “Family” was defined by biological relatedness, social ties, interactions, and proximity. Several participants noted using different definitions of family for different purposes (e.g. biomedical vs. social). Health discussions took place between and within generations and were influenced by structural relationships (e.g. sister) and characteristics of family members (e.g. trustworthiness). Participants described managing tensions between sharing health information and protecting privacy, especially related to generational differences in sharing information, fear of familial conflict or gossip, and denial (sometimes described as refusal to “own” or “claim” a disease). Few participants reported that anyone in their family kept formal FHH records. Results suggest FHH initiatives should address family tensions and communication patterns that affect discussion and collection of FHH information. PMID:25730634

  19. Getting the word out on Twitter: the role of influentials, information brokers and strong ties in building word-of-mouth for brands

    NARCIS (Netherlands)

    Araujo, T.; Neijens, P.; Vliegenthart, R.

    2017-01-01

    Using a sample of over 5300 tweets from top global brands, this study investigated how different types of users can influence brand content diffusion via retweets. Twitter users who influenced followers to retweet brand content were categorized as (1) influentials, because of their above average

  20. The SNAP Strong Lens Survey

    Energy Technology Data Exchange (ETDEWEB)

    Marshall, P.

    2005-01-03

    Basic considerations of lens detection and identification indicate that a wide field survey of the types planned for weak lensing and Type Ia SNe with SNAP are close to optimal for the optical detection of strong lenses. Such a ''piggy-back'' survey might be expected even pessimistically to provide a catalogue of a few thousand new strong lenses, with the numbers dominated by systems of faint blue galaxies lensed by foreground ellipticals. After sketching out our strategy for detecting and measuring these galaxy lenses using the SNAP images, we discuss some of the scientific applications of such a large sample of gravitational lenses: in particular we comment on the partition of information between lens structure, the source population properties and cosmology. Understanding this partitioning is key to assessing strong lens cosmography's value as a cosmological probe.

  1. Strong coupling phase in QED

    International Nuclear Information System (INIS)

    Aoki, Ken-ichi

    1988-01-01

    Existence of a strong coupling phase in QED has been suggested in solutions of the Schwinger-Dyson equation and in Monte Carlo simulation of lattice QED. In this article we recapitulate the previous arguments, and formulate the problem in the modern framework of the renormalization theory, Wilsonian renormalization. This scheme of renormalization gives the best understanding of the basic structure of a field theory especially when it has a multi-phase structure. We resolve some misleading arguments in the previous literature. Then we set up a strategy to attack the strong phase, if any. We describe a trial; a coupled Schwinger-Dyson equation. Possible picture of the strong coupling phase QED is presented. (author)

  2. The blind faith deep water horizontal pipeline tie-in project

    Energy Technology Data Exchange (ETDEWEB)

    Charalambides, John Nicos [Oceaneering International, Inc., Houston, TX (United States)

    2009-12-19

    This presentation will concentrate on the design challenges, experience and learning from the SIT and offshore installation of two deepwater pipeline tie-ins using first-of-its-kind subsea technology and installation methodologies on the 'Blind Faith' project. The Blind Faith Subsea Tie-Ins join the Blind Faith oil and gas pipelines with the Canyon Chief gas pipeline and the Mountaineer oil pipeline in 5100 feet of water. Both of the Blind Faith oil and gas pipelines are terminated with conventional PLEMs providing a horizontal connector for the tie-in and a vertical connector for a future tie-in connection point. The connectors are ROV operable/installable clamp style connectors. The method of joining to the Canyon Chief oil and gas pipelines and the type of jumper employed are unique to the tie-in. An ROV operable / installable mechanical pipe end connector connects the bare ends of the Canyon Chief and Mountaineer pipelines. The mechanical pipe end connector is fitted with an integral clamp connector hub and rests on an ROV installed mud mat. After installation of the mechanical connector, metrology was performed to create a neutral state horizontal jumper for joining the mechanical connector hub and the Blind Faith PLEM. The neutral state horizontal jumper is a compliant 'Z-Bend' design. During installation the jumper was elastically pre-deformed using a bowstring system. Pre-deformation of the jumper provided installation clearances and facilitated the neutral stress state after installation. Once landed the jumper bowstring was relaxed, allowing the jumper to expand to fit between the hubs. After expansion and make-up, the clamp connectors were tightened via an ROV operated hydraulic torque wrench. A seal test verified the integrity of the connections. After installation the jumper remains in a minimal residual stress state atypical of most horizontal jumpers. The horizontal jumper was chosen over the vertical jumper because it provides a

  3. Video self-assessment of basic suturing and knot tying skills by novice trainees.

    Science.gov (United States)

    Hu, Yinin; Tiemann, Debbie; Michael Brunt, L

    2013-01-01

    Self-assessment is important to learning but few studies have utilized video self-assessment of basic surgical skills. We compared a video self-assessment of suturing and knot tying skills by novice trainees to the assessment by a senior attending surgeon. Sixteen senior medical students and 7 beginner surgical interns were video-recorded while performing five suturing and knot tying tasks. All videos were analyzed using an objective structured assessment of technical skills (OSATS) metrics (1-5 scale; 1 = novice, 5 = expert). Video self-assessment was carried out within 4 weeks of an instructional session and subsequently by one senior surgery instructor (blinded to the individual). Both a Global score and total combined OSATS scores were analyzed. Total possible OSATS scores were: interrupted suture-30, subcuticular closure-30, one and two-handed knot tying-25 each, tying in a restricted space 20; maximum combined score-130 points). Confidence levels in performing the tasks pre-test and the value of video self-assessment were rated on a 1-5 Likert scale (1 = low and 5 = high). Data are mean±SD and statistical significance was evaluated using Friedman's test. Self-assessment scoring was significantly higher than the assessment by a senior instructor for three tasks by global score and all five tasks by combined OSATS score (self-assessment 71.8±16.7 vs attending assessment 56.7±11.0, p = 0.007). Mean self-assessment Global scores ranged from 2.5 to 2.8 for all tasks performed compared to 1.8-2.3 for attending surgeon assessment (pvideo self-assessment was rated as a highly valuable (mean 4.3±0.8) component to skills training. Novice trainees over-estimate their basic technical skills performance compared to the assessment by a senior surgeon. Video self-assessment may be a valuable addition to a pre-residency and surgical internship preparatory curriculum in basic suturing and knot tying. Copyright © 2013 Association of Program Directors in Surgery. Published

  4. OPTIMIZING THE DISTRIBUTION OF TIE POINTS FOR THE BUNDLE ADJUSTMENT OF HRSC IMAGE MOSAICS

    Directory of Open Access Journals (Sweden)

    J. Bostelmann

    2017-07-01

    Full Text Available For a systematic mapping of the Martian surface, the Mars Express orbiter is equipped with a multi-line scanner: Since the beginning of 2004 the High Resolution Stereo Camera (HRSC regularly acquires long image strips. By now more than 4,000 strips covering nearly the whole planet are available. Due to the nine channels, each with different viewing direction, and partly with different optical filters, each strip provides 3D and color information and allows the generation of digital terrain models (DTMs and orthophotos. To map larger regions, neighboring HRSC strips can be combined to build DTM and orthophoto mosaics. The global mapping scheme Mars Chart 30 is used to define the extent of these mosaics. In order to avoid unreasonably large data volumes, each MC-30 tile is divided into two parts, combining about 90 strips each. To ensure a seamless fit of these strips, several radiometric and geometric corrections are applied in the photogrammetric process. A simultaneous bundle adjustment of all strips as a block is carried out to estimate their precise exterior orientation. Because size, position, resolution and image quality of the strips in these blocks are heterogeneous, also the quality and distribution of the tie points vary. In absence of ground control points, heights of a global terrain model are used as reference information, and for this task a regular distribution of these tie points is preferable. Besides, their total number should be limited because of computational reasons. In this paper, we present an algorithm, which optimizes the distribution of tie points under these constraints. A large number of tie points used as input is reduced without affecting the geometric stability of the block by preserving connections between strips. This stability is achieved by using a regular grid in object space and discarding, for each grid cell, points which are redundant for the block adjustment. The set of tie points, filtered by the

  5. Design of a Glenn Research Center Solar Field Grid-Tied Photovoltaic Power System

    Science.gov (United States)

    Eichenberg, Dennis J.

    2009-01-01

    The NASA Glenn Research Center (GRC) designed, developed, and installed, a 37.5 kW DC photovoltaic (PV) Solar Field in the GRC West Area in the 1970s for the purpose of testing PV panels for various space and terrestrial applications. The PV panels are arranged to provide a nominal 120 VDC. The GRC Solar Field has been extremely successful in meeting its mission. The PV panels and the supporting electrical systems are all near their end of life. GRC has designed a 72 kW DC grid-tied PV power system to replace the existing GRC West Area Solar Field. The 72 kW DC grid-tied PV power system will provide DC solar power for GRC PV testing applications, and provide AC facility power for all times that research power is not required. A grid-tied system is connected directly to the utility distribution grid. Facility power can be obtained from the utility system as normal. The PV system is synchronized with the utility system to provide power for the facility, and excess power is provided to the utility for use by all. The project transfers space technology to terrestrial use via nontraditional partners. GRC personnel glean valuable experience with PV power systems that are directly applicable to various space power systems, and provide valuable space program test data. PV power systems help to reduce harmful emissions and reduce the Nation s dependence on fossil fuels. Power generated by the PV system reduces the GRC utility demand, and the surplus power aids the community. Present global energy concerns reinforce the need for the development of alternative energy systems. Modern PV panels are readily available, reliable, efficient, and economical with a life expectancy of at least 25 years. Modern electronics has been the enabling technology behind grid-tied power systems, making them safe, reliable, efficient, and economical with a life expectancy of at least 25 years. The report concludes that the GRC West Area grid-tied PV power system design is viable for a reliable

  6. 360° virtual reality video for the acquisition of knot tying skills: A randomised controlled trial.

    Science.gov (United States)

    Yoganathan, S; Finch, D A; Parkin, E; Pollard, J

    2018-04-10

    360° virtual reality (VR) video is an exciting and evolving field. Current technology promotes a totally immersive, 3-dimensional (3D), 360° experience anywhere in the world using simply a smart phone and virtual reality headset. The potential for its application in the field of surgical education is enormous. The aim of this study was to determine knot tying skills taught with a 360-degree VR video compared to conventional 2D video teaching. This trial was a prospective, randomised controlled study. 40 foundation year doctors (first year postgraduate) were randomised to either the 360-degree VR video (n = 20) or 2D video teaching (n = 20). Participants were given 15 min to watch their allocated video. Ability to tie a single handed reef knot was then assessed against a marking criteria developed for the Royal College of Surgeons, England, (RCSeng) Basic Surgical Skills (BSS) course, by a blinded assessor competent in knot tying. Each candidate then underwent further teaching using Peyton's four step model. Knot tying technique was then re-assessed. Knot tying scores were significantly better in the VR video teaching arm when compared with conventional (median knot score 5.0 vs 4.0 p = 0.04). When used in combination with face to face skills teaching this difference persisted (median knot score 9.5 vs 9.0 p = 0.01). More people in the VR arm constructed a complete reef knot than in the 2D arm following face to face teaching (17/20 vs 12/20). No difference between the groups existed in the time taken to construct a reef knot following video and teaching (median time 31.0s vs 30.5s p = 0.89). This study shows there is significant merit in the application of 360-degree VR video technology in surgical training, both as an independent teaching aid and when used as an adjunct to traditional face to face teaching. Copyright © 2018 IJS Publishing Group Ltd. Published by Elsevier Ltd. All rights reserved.

  7. [Familial seroepidemiology of toxocariasis].

    Science.gov (United States)

    Noemi, I; Rugiero, E; Viovy, A; Cortés, P P; Cerva, J L; González, M; Back, S; Gottlieb, B; Herrera, M E; Cordovez, J

    1994-01-01

    With the objective of defining the intrafamiliar distribution pattern of the infection and illness caused by Toxocara sp., 78 infected families (356 people) were studied for 30 months. At the same time 28 families free of infection were studied, as a control group (97 people). The socioeconomic level was analyzed according to a modified Graffar index. Contac with canine and feline pets, and antecedents of geophagia and onichophagia were found to be risk factors which would facilitate the infection. The average of persons infected, diagnosed by ELISA Toxocara test, was 2.8 per family. The importance of familiar distribution of the infection and its primary prevention is strongly stressed.

  8. Expression of VEGF receptors VEFGR-1 and VEGFR-2, angiopoietin receptors Tie-1 and Tie-2 in chorionic villi tree during early pregnancy.

    Directory of Open Access Journals (Sweden)

    Ramazan Demir

    2010-02-01

    Full Text Available The aim of this study was to determine the expression of VEGF and its receptors in placentas from normal pregnancies between 22 days p.c. and 48 days p.c. of very early pregnancy. Placental tissues carried out from 19 pregnant women were examined. Immunohistochemical technique, electron microscopy were employed to evaluate the factors expression. In the new developing mesenchymal villi and immature intermediate villi VEGF and its receptors VEGFR-1 and VEGFR-2 immunoreactivity was detected in all the placental components, while in the stem villi and in the chorionic plate with large vessels only in some components. In the mesenchymal villi and immature intermediate villi VEGFR-1 and -2, and angiopoietin receptors Tie-1 and -2 immunoreactivity was dominantly observed in the heamangiogenic cells and cells cords, whereas the matured villi showed immunoreactivity only in other components. The ultrastructural findings were higher in respect to the all of the early pregnancy days. The placental samples from all of pregnancies, showed the VEGF and its receptors in optimal expression levels, whereas the angiopoietin receptors Tie-1 and -2 showed a higher expression levels in respect to other study factors. The receptors protein levels increased from the early days to the advanced days of gestation, but this alteration was not significant. The intensity of the immunolabeling for these proteins were not significant compared to to each other of gestatin days were examined. These findings demonstrated that a dysregulation of the placental expression of the VEGF and its receptors related to the different degrees of the gestational periods. Probably, this event may be related to complete vasculugenesis and angiogenesis in placental villi.

  9. Family Privilege

    Science.gov (United States)

    Seita, John R.

    2014-01-01

    Family privilege is defined as "strengths and supports gained through primary caring relationships." A generation ago, the typical family included two parents and a bevy of kids living under one roof. Now, every variation of blended caregiving qualifies as family. But over the long arc of human history, a real family was a…

  10. Familial risk of inflammatory bowel disease

    DEFF Research Database (Denmark)

    Trier Møller, Frederik; Andersen, Vibeke; Wohlfarht, Jan

    2015-01-01

    OBJECTIVES: Estimates of familial risk of inflammatory bowel diseases (IBDs), Crohn's disease (CD), and ulcerative colitis (UC) are needed for counseling of patients and could be used to target future prevention. We aimed to provide comprehensive population-based estimates of familial risk of IBD....... METHODS: The study encompassed the entire Danish population during 1977-2011 (N=8,295,773; 200 million person-years). From national registries, we obtained information on diagnosis date of IBD (N=45,780) and family ties. Using Poisson regression, we estimated incidence rate ratios (IRRs) of IBD...... pronounced in relatives of CD cases. IRRs increased with two or more IBD-affected relatives and were modified by age, with the highest family-related IRR observed in early life. CONCLUSIONS: The risk of IBD is significantly increased in first -, second-, and third-degree relatives of IBD-affected cases...

  11. Facilitating Family Life Review during a Relocation to Assisted Living: Exploring Contextual Impact on Family Adjustment.

    Science.gov (United States)

    O'Hora, Kendra A; Roberto, Karen A

    2017-12-14

    The purpose of this study was to explore how contextual aspects of participants' lives before and throughout relocation to assisted living (ALF) informed family experience of family life review (FLR). Fourteen families participated in a single FLR session within 6 months of the older adults' relocation. Semi-structured interviews, conducted one-month following the FLR session, were analyzed using the constant comparative method. Demographic and relational variables provided context for assessing how individual and family dynamics influenced the family relocation process. Techniques were used during the three phases of FLR (introduction, validation, consolidation) to encourage openness and mutual dialogue between family members. Health-related limitations challenged older adults' understanding and openness during the FLR. Mental health concerns linked to older adults' outlook on life, comfort in conversation during the FLR, and reflection of lifelong social ties. Family involvement and dynamics influenced how families communicated about their mutual narrative and the relocation transition. FLR is an adaptable intervention to assist older adults and their family during a transition to ALF. Although contextual challenges impacted how families experienced the FLR, they enjoyed FLR as a unifying event that promoted mutual understanding. The use of FLR facilitates enhanced understanding and communication during relocation. Older adults' health status as well as family dynamics need to be assessed prior to organizing a FLR to accommodate each families' unique needs.

  12. Strong Decomposition of Random Variables

    DEFF Research Database (Denmark)

    Hoffmann-Jørgensen, Jørgen; Kagan, Abram M.; Pitt, Loren D.

    2007-01-01

    A random variable X is stongly decomposable if X=Y+Z where Y=Φ(X) and Z=X-Φ(X) are independent non-degenerated random variables (called the components). It is shown that at least one of the components is singular, and we derive a necessary and sufficient condition for strong decomposability...

  13. Strong interaction at finite temperature

    Indian Academy of Sciences (India)

    Abstract. We review two methods discussed in the literature to determine the effective parameters of strongly interacting particles as they move through a heat bath. The first one is the general method of chiral perturbation theory, which may be readily applied to this problem. The other is the method of thermal QCD sum rules ...

  14. Strong-strong beam-beam simulation on parallel computer

    Energy Technology Data Exchange (ETDEWEB)

    Qiang, Ji

    2004-08-02

    The beam-beam interaction puts a strong limit on the luminosity of the high energy storage ring colliders. At the interaction points, the electromagnetic fields generated by one beam focus or defocus the opposite beam. This can cause beam blowup and a reduction of luminosity. An accurate simulation of the beam-beam interaction is needed to help optimize the luminosity in high energy colliders.

  15. Strong-strong beam-beam simulation on parallel computer

    International Nuclear Information System (INIS)

    Qiang, Ji

    2004-01-01

    The beam-beam interaction puts a strong limit on the luminosity of the high energy storage ring colliders. At the interaction points, the electromagnetic fields generated by one beam focus or defocus the opposite beam. This can cause beam blowup and a reduction of luminosity. An accurate simulation of the beam-beam interaction is needed to help optimize the luminosity in high energy colliders

  16. Problematic Alcohol Use and Problem Gambling: Associations to Structural and Functional aspects of Social Ties in a Finnish Population Sample

    Directory of Open Access Journals (Sweden)

    Nordmyr Johanna

    2016-09-01

    Full Text Available AIMS – This study aims to explore associations between structural and functional aspects of social networks and relationships (here labelled social ties among individuals exhibiting problematic alcohol use and problem gambling, respectively.

  17. Creative benefits from well-connected leaders: leader social network ties as facilitators of employee radical creativity.

    Science.gov (United States)

    Venkataramani, Vijaya; Richter, Andreas W; Clarke, Ronald

    2014-09-01

    Employee radical creativity critically depends on substantive informational resources from others across the wider organization. We propose that the social network ties of employees' immediate leaders assume a central role in garnering these resources, thereby fostering their employees' radical creativity both independent of and interactively with employees' own network ties. Drawing on data from 214 employees working in 30 teams of a public technology and environmental services organization, we find that team leaders' betweenness centrality in the idea network within their teams as well as among their peer leaders provides creative benefits beyond employees' own internal and external ties. Further, employees' and leaders' ties within and external to the team interactively predict employee radical creativity. Implications for theory and practice are discussed. PsycINFO Database Record (c) 2014 APA, all rights reserved.

  18. Regulation of family reunification in the EU: Shaping the profile of Finland

    OpenAIRE

    Lavrinenko, Evgeniya

    2017-01-01

    This thesis touches upon the subject of family reunification, being highly problematised and politicised in the context of the EU member states. Demonisation of the matter, largely stems from the fact that reunification based on family ties is the main mode of entry onto the territory of the EU available for third country nationals. Intensified further in the context of the erupted European refugee crisis, family reunification is viewed by many EU member states as an area to create ever furth...

  19. Sexual education of adolescents: a role for the family or the school?

    OpenAIRE

    Da Silva Vilelas Janeiro, José Manuel

    2008-01-01

    The change from extended to nuclear families, the growing influence of the media on masses, the unhealthy lifestyles adopted by adolescents, weakened family ties stress the important role of education, particularly sexual education, today. A descriptivecorrelational study was carried out to analyze the influence of the school and the family on the process of adolescent sexual education. A sample of 109 individuals was assessed. The following instruments were used: semi-structured interview, P...

  20. PREFACE: Strongly correlated electron systems Strongly correlated electron systems

    Science.gov (United States)

    Saxena, Siddharth S.; Littlewood, P. B.

    2012-07-01

    This special section is dedicated to the Strongly Correlated Electron Systems Conference (SCES) 2011, which was held from 29 August-3 September 2011, in Cambridge, UK. SCES'2011 is dedicated to 100 years of superconductivity and covers a range of topics in the area of strongly correlated systems. The correlated electronic and magnetic materials featured include f-electron based heavy fermion intermetallics and d-electron based transition metal compounds. The selected papers derived from invited presentations seek to deepen our understanding of the rich physical phenomena that arise from correlation effects. The focus is on quantum phase transitions, non-Fermi liquid phenomena, quantum magnetism, unconventional superconductivity and metal-insulator transitions. Both experimental and theoretical work is presented. Based on fundamental advances in the understanding of electronic materials, much of 20th century materials physics was driven by miniaturisation and integration in the electronics industry to the current generation of nanometre scale devices. The achievements of this industry have brought unprecedented advances to society and well-being, and no doubt there is much further to go—note that this progress is founded on investments and studies in the fundamentals of condensed matter physics from more than 50 years ago. Nevertheless, the defining challenges for the 21st century will lie in the discovery in science, and deployment through engineering, of technologies that can deliver the scale needed to have an impact on the sustainability agenda. Thus the big developments in nanotechnology may lie not in the pursuit of yet smaller transistors, but in the design of new structures that can revolutionise the performance of solar cells, batteries, fuel cells, light-weight structural materials, refrigeration, water purification, etc. The science presented in the papers of this special section also highlights the underlying interest in energy-dense materials, which

  1. Effect of frenotomy on breastfeeding variables in infants with ankyloglossia (tongue-tie): a prospective before and after cohort study

    OpenAIRE

    Muldoon, Kathryn; Gallagher, Louise; McGuinness, Denise; Smith, Valerie

    2017-01-01

    Background Controversy exists regarding ankyloglossia (tongue-tie) and its clinical impact on breastfeeding, including the benefits, or otherwise, of tongue-tie release (frenotomy). As exclusive breastfeeding rates in Ireland are already considerably low (46% on discharge home from the maternity unit following birth in 2014), it is imperative to protect and support breastfeeding, including identifying the associated effects that frenotomy might have on breastfeeding variables. Objective To de...

  2. Creative benefits from well-connected leaders? Leader social network ties as facilitators of employee radical creativity

    OpenAIRE

    Venkataramani, V; Richter, Andreas Wilhelm; Clarke, R

    2014-01-01

    Employee radical creativity critically depends on substantive informational resources from others across the wider organization. We propose that the social network ties of employees’ immediate leaders assume a central role in garnering these resources, thereby fostering their employees’ radical creativity both independent of, and interactively with, employees’ own network ties. Drawing on data from 214 employees working in 30 teams of a public technology and environmental services organizatio...

  3. Assessment of the possible contribution of space ties on-board GNSS satellites to the terrestrial reference frame

    Science.gov (United States)

    Bruni, Sara; Rebischung, Paul; Zerbini, Susanna; Altamimi, Zuheir; Errico, Maddalena; Santi, Efisio

    2018-04-01

    The realization of the international terrestrial reference frame (ITRF) is currently based on the data provided by four space geodetic techniques. The accuracy of the different technique-dependent materializations of the frame physical parameters (origin and scale) varies according to the nature of the relevant observables and to the impact of technique-specific errors. A reliable computation of the ITRF requires combining the different inputs, so that the strengths of each technique can compensate for the weaknesses of the others. This combination, however, can only be performed providing some additional information which allows tying together the independent technique networks. At present, the links used for that purpose are topometric surveys (local/terrestrial ties) available at ITRF sites hosting instruments of different techniques. In principle, a possible alternative could be offered by spacecrafts accommodating the positioning payloads of multiple geodetic techniques realizing their co-location in orbit (space ties). In this paper, the GNSS-SLR space ties on-board GPS and GLONASS satellites are thoroughly examined in the framework of global reference frame computations. The investigation focuses on the quality of the realized physical frame parameters. According to the achieved results, the space ties on-board GNSS satellites cannot, at present, substitute terrestrial ties in the computation of the ITRF. The study is completed by a series of synthetic simulations investigating the impact that substantial improvements in the volume and quality of SLR observations to GNSS satellites would have on the precision of the GNSS frame parameters.

  4. Strongly correlated systems experimental techniques

    CERN Document Server

    Mancini, Ferdinando

    2015-01-01

    The continuous evolution and development of experimental techniques is at the basis of any fundamental achievement in modern physics. Strongly correlated systems (SCS), more than any other, need to be investigated through the greatest variety of experimental techniques in order to unveil and crosscheck the numerous and puzzling anomalous behaviors characterizing them. The study of SCS fostered the improvement of many old experimental techniques, but also the advent of many new ones just invented in order to analyze the complex behaviors of these systems. Many novel materials, with functional properties emerging from macroscopic quantum behaviors at the frontier of modern research in physics, chemistry and materials science, belong to this class of systems. The volume presents a representative collection of the modern experimental techniques specifically tailored for the analysis of strongly correlated systems. Any technique is presented in great detail by its own inventor or by one of the world-wide recognize...

  5. Strongly Correlated Systems Theoretical Methods

    CERN Document Server

    Avella, Adolfo

    2012-01-01

    The volume presents, for the very first time, an exhaustive collection of those modern theoretical methods specifically tailored for the analysis of Strongly Correlated Systems. Many novel materials, with functional properties emerging from macroscopic quantum behaviors at the frontier of modern research in physics, chemistry and materials science, belong to this class of systems. Any technique is presented in great detail by its own inventor or by one of the world-wide recognized main contributors. The exposition has a clear pedagogical cut and fully reports on the most relevant case study where the specific technique showed to be very successful in describing and enlightening the puzzling physics of a particular strongly correlated system. The book is intended for advanced graduate students and post-docs in the field as textbook and/or main reference, but also for other researchers in the field who appreciates consulting a single, but comprehensive, source or wishes to get acquainted, in a as painless as po...

  6. Strongly correlated systems numerical methods

    CERN Document Server

    Mancini, Ferdinando

    2013-01-01

    This volume presents, for the very first time, an exhaustive collection of those modern numerical methods specifically tailored for the analysis of Strongly Correlated Systems. Many novel materials, with functional properties emerging from macroscopic quantum behaviors at the frontier of modern research in physics, chemistry and material science, belong to this class of systems. Any technique is presented in great detail by its own inventor or by one of the world-wide recognized main contributors. The exposition has a clear pedagogical cut and fully reports on the most relevant case study where the specific technique showed to be very successful in describing and enlightening the puzzling physics of a particular strongly correlated system. The book is intended for advanced graduate students and post-docs in the field as textbook and/or main reference, but also for other researchers in the field who appreciate consulting a single, but comprehensive, source or wishes to get acquainted, in a as painless as possi...

  7. Strongly nonlinear oscillators analytical solutions

    CERN Document Server

    Cveticanin, Livija

    2014-01-01

    This book provides the presentation of the motion of pure nonlinear oscillatory systems and various solution procedures which give the approximate solutions of the strong nonlinear oscillator equations. The book presents the original author’s method for the analytical solution procedure of the pure nonlinear oscillator system. After an introduction, the physical explanation of the pure nonlinearity and of the pure nonlinear oscillator is given. The analytical solution for free and forced vibrations of the one-degree-of-freedom strong nonlinear system with constant and time variable parameter is considered. Special attention is given to the one and two mass oscillatory systems with two-degrees-of-freedom. The criteria for the deterministic chaos in ideal and non-ideal pure nonlinear oscillators are derived analytically. The method for suppressing chaos is developed. Important problems are discussed in didactic exercises. The book is self-consistent and suitable as a textbook for students and also for profess...

  8. Waves in Strong Centrifugal Field

    Science.gov (United States)

    Bogovalov, S. V.; Kislov, V. A.; Tronin, I. V.

    Dynamics of waves generated by scopes in gas centrifuges (GC) for isotope separation is considered. The centrifugal acceleration in the GC reaches values of the order of 106g. The centrifugal and Coriolis forces modify essentially the conventional sound waves. Three families of the waves with different polarization and dispersion exist in these conditions. Dynamics of the flow in the model GC Iguasu is investigated numerically. Comparison of the results of the numerical modeling of the wave dynamics with the analytical predictions is performed. New phenomena of the resonances in the GC is found. The resonances occur for the waves polarized along the rotational axis having the smallest dumping due to the viscosity.

  9. Effect of Tower Shadow and Wind Shear in a Wind Farm on AC Tie-Line Power Oscillations of Interconnected Power Systems

    DEFF Research Database (Denmark)

    Tan, Jin; Hu, Weihao; Wang, Xiaoru

    2013-01-01

    This paper describes a frequency domain approach for evaluating the impact of tower shadow and wind shear effects (TSWS) on tie-line power oscillations. A simplified frequency domain model of an interconnected power system with a wind farm is developed. The transfer function, which relates the tie......-line power variation to the mechanical power variation of a wind turbine, and the expression of the maximum magnitude of tie-line power oscillations are derived to identify the resonant condition and evaluate the potential risk. The effects of the parameters on the resonant magnitude of the tie-line power...... are also discussed. The frequency domain analysis reveals that TSWS can excite large tie-line power oscillations if the frequency of TSWS approaches the tie-line resonant frequency, especially in the case that the wind farm is integrated into a relatively small grid and the tie-line of the interconnected...

  10. NMR study of strongly correlated electron systems

    Science.gov (United States)

    Kitaoka, Y.; Tou, H.; Zheng, G.-q.; Ishida, K.; Asayama, K.; Kobayashi, T. C.; Kohda, A.; Takeshita, N.; Amaya, K.; Onuki, Y.; Geibel, G.; Schank, C.; Steglich, F.

    1995-02-01

    Various types of ground states in strongly correlated electron systems have been systematically investigated by means of NMR/NQR at low temperatures under high magnetic field and pressure. We focus on two well-known heavy-electron families, CeCu 2X 2 (X = Si and Ge) (Ce(122)) and UM 2Al 3 (M = Ni and Pd) (U(123)). The Cu NQR experiments on CeCu 2X 2 under high pressure indicate that the physical property of CeCu 2Ge 2 at high pressure, i.e. above the transition at 7.6 GPa from antiferromagnetic (AF) to superconductivity, are clearly related to tha CeCu 2Si 2 at ambient pressure. In addition to the H-T phase diagram established below 7 T, NMR and specific heat experiments on polycrystal CeCu 2.05Si 2 have revealed the presence of a new phase above 7 T. In a high-quality polycrystal of UPd 2Al 3 with a record high- Tc of 2 K at ambient pressure and the narrowest Al NQR line width, the nuclear-spin lattice relaxation rate, 27(1/ T1) measured in zero field has been found to obey the T3 law down to 0.13 K, giving strong evidence that the energy gap vanishes along lines on the Fermi surface. Thus it seems that all heavy-electron superconductors exhibit lines of zero gap, regardless of their different magnetic properties.

  11. Tension in the tie-down chains of a shipping container for hazardous material

    International Nuclear Information System (INIS)

    Lo, T.Y.

    1995-01-01

    Chains are frequently used to tie the shipping containers of hazardous material to a truck bed. The tie-down system is nonlinear when the container is subjected to a triaxial force during transit. It is nonlinear because chains cannot carry compressive force, and the base of the container may partially lift off from the truck bed. A method was developed to calculate the amount of tension in the chains. This methodology includes three assumptions: (1) No friction exists between the container and the truck bed; (2) The container and the truck bed are rigid; and (3) All chains are properly tightened (i.e., no slacks) during preparation for shipment. The methodology employs an iterative process of a linear tie-down system. This linear system is derived from the nonlinear system with two additional assumptions: (a) All chains can carry compression as well as tension; and (b) There is a point contact between the container and the truck bed. This linear system has a closed-form solution. After the first solution of the linear system is obtained, the unreasonable, or physically impossible, rotational degree of freedom of the container and the chains with compressive force are eliminated in the follow-up iterative calculations using the same linear system. Unreasonable rotation is detected when the results indicate a rotation of the container into the truck bed. Zero rotational value is assigned to this degree of freedom in the follow-up iterations. For chains under compression, the chain length is replaced with a fictitiously large value because a long chain carries essentially no load. This process usually needs only two or three iterations and can easily be carried out in a spread sheet using such programs as Microsoft Excel or LOTUS 123

  12. Frequency Adaptive Repetitive Control of Grid-Tied Single-Phase PV Inverters

    DEFF Research Database (Denmark)

    Zhou, Keliang; Yang, Yongheng; Blaabjerg, Frede

    2015-01-01

    . This paper thus explores a frequency adaptive repetitive control strategy for grid converters, which employs fractional delay filters in order to adapt to the change of the grid frequency. Case studies with experimental results of a single-phase grid-connected PV inverter system are provided to verify......The internal model principle based Repetitive Control (RC) offers an accurate control strategy for grid-tied power converters to feed sinusoidal current into the grid. However, in the presence of grid frequency variations, the conventional RC fails to produce high quality feeding current...... the proposed controller....

  13. Frequency Adaptive Repetitive Control of Grid-Tied Three-Phase PV Inverters

    DEFF Research Database (Denmark)

    Zhou, Keliang; Yang, Yongheng; Blaabjerg, Frede

    2016-01-01

    Repetitive control offers an accurate current control scheme for grid-tied converters to feed high quality sinusoidal current into the grid. However, with grid frequency being treated as a constant value, conventional repetitive controller fail to produce high quality feeding current...... in the presence of practical time-varying grid frequency. This paper explores frequency adaptive repetitive control strategy for grid-interfaced converters, which employs fractional delay filter to adapt to the change of grid frequency. Case studies with experimental results of three-phase grid......-connected converter systems are provided to verify the proposed controller....

  14. Concept Based Tie-breaking and Maximal Marginal Relevance Retrieval in Microblog Retrieval

    Science.gov (United States)

    2014-11-01

    Concept Based Tie-breaking and Maximal Marginal Relevance Retrieval in Microblog Retrieval Kuang Lu Department of Electrical and Computer Engineering...compute similarity scores: Simi(Q,D)= { 0, i=0 µ ∗ Simi−1(Q,D) + Si , i=1,2,...,k (2) Sim(Q,D)=Simk(Q,D) (3) Given a query Q, a tweet D, and a set of k...signal is denoted as Si (Q,D). Before ith signal is applied, we multi- ply the ranking score for the signals applied earlier ( Si −1(Q,D)) with a big factor µ

  15. A Systematic Method to Synthesize New Transformerless Full-bridge Grid-tied Inverters

    DEFF Research Database (Denmark)

    Wang, Hongliang; Burton, Sarah; Liu, Yan-Fei

    2014-01-01

    Many inverter topologies have been proposed to eliminate the leakage current of transformerless Full Bridge Grid-Tied photovoltaic (PV) inverters. These include implementations such as the H5, H6, and HERIC topologies, among others. In this paper, a new full bridge topology synthesis method, called...... the MN synthesis method, is proposed. The MN method introduces two criteria that can be used to synthesize all of the possible topologies, including the existing topologies as well as new simplified topologies. This method concludes that there are only 15 simplified topologies available. Most simplified...... topologies from MN method have been verified by existing papers and patents....

  16. The modelling of two DOF joints controlled by elastic inner ties

    Directory of Open Access Journals (Sweden)

    Ożóg Dominik

    2017-01-01

    Full Text Available This paper considers the mathematical model of two types of joints that can be used to connect the arms of two robots. The first of them is a simple revolute joint with one degree of freedom and the second is a universal joint with two degrees of freedom. Each of them is controlled using elastic ties that run in the joints and are connected to the inside of the arm joints. This paper describes a study of kinematics, dynamics properties and Extended Denavit-Hartenberg Notation parameters mentioned joints.

  17. Harmonic current prediction by impedance modeling of grid-tied inverters

    DEFF Research Database (Denmark)

    Pereira, Heverton A.; Freijedo, Francisco D.; Silva, M. M.

    2017-01-01

    Grid-tied inverters are the main responsible for the successful integration of photovoltaic (PV) plants in the power grid. Two important challenges are the integration of power plants based-inverters and their contribution to the power system quality. This work analyzes the features of inverter....... In grids with harmonic voltages, impedance models can predict the current distortion for all active power injection scenarios. Furthermore, measurements in a 1.4 MW PV plant connected in a distributed grid are used to validate the simulation based on impedance models during different power injections...

  18. China-USA economic relations: bilateral ties and multilateral economic projects

    Directory of Open Access Journals (Sweden)

    S. M. Troush

    2017-01-01

    Full Text Available The article is devoted to the study of problematic issues of the change of US-China trade is going up notwithstanding the slowdown of Chinese economy. Those US fi rms who placed production in China became more involved into Chinese internal market. Chinese investments into US prevail over the US investments in China. The decisions of the Chinese leadership to set up the new market priorities in the economic development are implemented with obvious diffi culties, but being implemented, could stimulate US-China ties.

  19. Flat tie-line power scheduling control of grid-connected hybrid microgrids

    DEFF Research Database (Denmark)

    Xiao, Zhao xia; Guerrero, Josep M.; Shuang, Jia

    2018-01-01

    In future active distribution networks (ADNs), microgrids (MGs) may have the possibility to control the power dispatched to the ADN by coordinating the output power of their multiple renewable generation units and energy storage units (ESUs). In this way, each MG may support the active distribution....... Also, a method to calculate the tie-line power flow to be exchanged between the MG and the ADN is explored, and a power ramp rate is given between different dispatch intervals. Finally, a simulation model of the hybrid MG is built and tested. Simulation results show that the proposed hierarchical...

  20. Predictive Current Control of Grid-tied Cascade H-bridge Inverter

    OpenAIRE

    Pástor, Marek; Dudrik, Jaroslav

    2013-01-01

    This paper presents a grid-tied cascade H-bridge inverter with predictive current control technique. The proposed 15-level cascade inverter consists of three H-bridge inverters with separated DC sources. At the output of the cascade inverter an L filter is used as a grid filter. The cascade inverter is controlled by the mean of RT-Lab. The predictive current regulator and one-phase synchronous reference frame PLL are designed with help of Rapid Control Prototyping. The proposed control method...

  1. Using strong nonlinearity and high-frequency vibrations to control effective mechanical stiffness

    DEFF Research Database (Denmark)

    Thomsen, Jon Juel

    2008-01-01

    High-frequency excitation (HFE) can be used to change the effective stiffness of an elastic structure, and related quanti-ties such as resonance frequencies, wave speed, buckling loads, and equilibrium states. There are basically two ways to do this: By using parametrical HFE (with or without non...... the method of direct separation of motions with results of a modified multiple scales ap-proach, valid also for strong nonlinearity, the stiffening ef-fect is predicted for a generic 1-dof system, and results are tested against numerical simulation and ((it is planned)) laboratory experiments....

  2. Family Issues

    Science.gov (United States)

    ... Information Publications Awards Partners Contact Us ¿Qué es Autismo? Donate Home What is Autism? What is Autism? ... Information Publications Awards Partners Contact Us ¿Qué es Autismo? Family Issues Home / Living with Autism / Family Issues ...

  3. Familial hypercholesterolemia

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/000392.htm Familial hypercholesterolemia To use the sharing features on this page, please enable JavaScript. Familial hypercholesterolemia is a disorder that is passed down through ...

  4. Family Life

    Science.gov (United States)

    ... relationship. Different families have different communication and coping styles. Consider how your family reacts in a crisis ... Learn more about how to get support for parenting while living with cancer . The importance of communication ...

  5. Familial gigantism

    Directory of Open Access Journals (Sweden)

    Wouter W. de Herder

    2012-01-01

    Full Text Available Familial GH-secreting tumors are seen in association with three separate hereditary clinical syndromes: multiple endocrine neoplasia type 1, Carney complex, and familial isolated pituitary adenomas.

  6. Familial gigantism

    NARCIS (Netherlands)

    W.W. de Herder (Wouter)

    2012-01-01

    textabstractFamilial GH-secreting tumors are seen in association with three separate hereditary clinical syndromes: multiple endocrine neoplasia type 1, Carney complex, and familial isolated pituitary adenomas.

  7. Atoms in strong laser fields

    International Nuclear Information System (INIS)

    L'Huillier, A.

    2002-01-01

    When a high-power laser focuses into a gas of atoms, the electromagnetic field becomes of the same magnitude as the Coulomb field which binds a 1s electron in a hydrogen atom. 3 highly non-linear phenomena can happen: 1) ATI (above threshold ionization): electrons initially in the ground state absorb a large number of photons, many more than the minimum number required for ionization; 2) multiple ionization: many electrons can be emitted one at a time, in a sequential process, or simultaneously in a mechanism called direct or non-sequential; and 3) high order harmonic generation (HHG): efficient photon emission in the extreme ultraviolet range, in the form of high-order harmonics of the fundamental laser field can occur. The theoretical problem consists in solving the time dependent Schroedinger equation (TDSE) that describes the interaction of a many-electron atom with a laser field. A number of methods have been proposed to solve this problem in the case of a hydrogen atom or a single-active electron atom in a strong laser field. A large effort is presently being devoted to go beyond the single-active approximation. The understanding of the physics of the interaction between atoms and strong laser fields has been provided by a very simple model called ''simple man's theory''. A unified view of HHG, ATI, and non-sequential ionization, originating from the simple man's model and the strong field approximation, expressed in terms of electrons trajectories or quantum paths is slowly emerging. (A.C.)

  8. Strongly Interacting Light Dark Matter

    Directory of Open Access Journals (Sweden)

    Sebastian Bruggisser, Francesco Riva, Alfredo Urbano

    2017-09-01

    Full Text Available In the presence of approximate global symmetries that forbid relevant interactions, strongly coupled light Dark Matter (DM can appear weakly coupled at small energy and generate a sizable relic abundance. Fundamental principles like unitarity restrict these symmetries to a small class, where the leading interactions are captured by effective operators up to dimension-8. Chiral symmetry, spontaneously broken global symmetries and non-linearly realized supersymmetry are examples of this. Their DM candidates (composite fermions, pseudo Nambu-Goldstone Bosons and Goldstini are interesting targets for LHC missing-energy searches.

  9. Strongly interacting light dark matter

    International Nuclear Information System (INIS)

    Bruggisser, Sebastian; Riva, Francesco; Urbano, Alfredo

    2016-07-01

    In the presence of approximate global symmetries that forbid relevant interactions, strongly coupled light Dark Matter (DM) can appear weakly coupled at small-energy and generate a sizable relic abundance. Fundamental principles like unitarity restrict these symmetries to a small class, where the leading interactions are captured by effective operators up to dimension-8. Chiral symmetry, spontaneously broken global symmetries and non-linearly realized supersymmetry are examples of this. Their DM candidates (composite fermions, pseudo-Nambu-Goldstone Bosons and Goldstini) are interesting targets for LHC missing-energy searches.

  10. Rydberg atoms in strong fields

    International Nuclear Information System (INIS)

    Kleppner, D.; Tsimmerman, M.

    1985-01-01

    Experimental and theoretical achievements in studying Rydberg atoms in external fields are considered. Only static (or quasistatic) fields and ''one-electron'' atoms, i.e. atoms that are well described by one-electron states, are discussed. Mainly behaviour of alkali metal atoms in electric field is considered. The state of theoretical investigations for hydrogen atom in magnetic field is described, but experimental data for atoms of alkali metals are presented as an illustration. Results of the latest experimental and theoretical investigations into the structure of Rydberg atoms in strong fields are presented

  11. Scalar strong interaction hadron theory

    CERN Document Server

    Hoh, Fang Chao

    2015-01-01

    The scalar strong interaction hadron theory, SSI, is a first principles' and nonlocal theory at quantum mechanical level that provides an alternative to low energy QCD and Higgs related part of the standard model. The quark-quark interaction is scalar rather than color-vectorial. A set of equations of motion for mesons and another set for baryons have been constructed. This book provides an account of the present state of a theory supposedly still at its early stage of development. This work will facilitate researchers interested in entering into this field and serve as a basis for possible future development of this theory.

  12. Strong Plate, Weak Slab Dichotomy

    Science.gov (United States)

    Petersen, R. I.; Stegman, D. R.; Tackley, P.

    2015-12-01

    Models of mantle convection on Earth produce styles of convection that are not observed on Earth.Moreover non-Earth-like modes, such as two-sided downwellings, are the de facto mode of convection in such models.To recreate Earth style subduction, i.e. one-sided asymmetric recycling of the lithosphere, proper treatment of the plates and plate interface are required. Previous work has identified several model features that promote subduction. A free surface or pseudo-free surface and a layer of material with a relatively low strength material (weak crust) allow downgoing plates to bend and slide past overriding without creating undue stress at the plate interface. (Crameri, et al. 2012, GRL)A low viscosity mantle wedge, possibly a result of slab dehydration, decouples the plates in the system. (Gerya et al. 2007, Geo)Plates must be composed of material which, in the case of the overriding plate, are is strong enough to resist bending stresses imposed by the subducting plate and yet, as in the case of the subducting plate, be weak enough to bend and subduct when pulled by the already subducted slab. (Petersen et al. 2015, PEPI) Though strong surface plates are required for subduction such plates may present a problem when they encounter the lower mantle.As the subducting slab approaches the higher viscosity, lower mantle stresses are imposed on the tip.Strong slabs transmit this stress to the surface.There the stress field at the plate interface is modified and potentially modifies the style of convection. In addition to modifying the stress at the plate interface, the strength of the slab affects the morphology of the slab at the base of the upper mantle. (Stegman, et al 2010, Tectonophysics)Slabs that maintain a sufficient portion of their strength after being bent require high stresses to unbend or otherwise change their shape.On the other hand slabs that are weakened though the bending process are more amenable to changes in morphology. We present the results of

  13. Effect of historical earthquakes on pre-stressed anchor tie back diaphragm wall and on near-by building

    Directory of Open Access Journals (Sweden)

    Kamal Mohamed Hafez Ismail Ibrahim

    2013-04-01

    Full Text Available Pre-stressed tie back anchored diaphragm walls are considered one of the safest lateral supports which help in overall stability when there is a significant difference in land level between back and front of these walls. Permanent lateral supports to these walls are frequently represented by supporting it laterally with foundation and floor slabs of the building. In this paper a special study of one raw anchor diaphragm wall subjected to different earthquake dynamic loads will be presented. The wall retains an excavation of 9.5 m and supports laterally a near-by 5 floor building. Five historical strong motions with different fundamental frequencies are subjected on the wall. The wall displacement, straining actions, anchor extreme force and the influence of variation of anchor stiffness are calculated using a dynamic Plaxis finite element program. The soil is considered as elasto-plastic material and represented using Mohr–Coulomb criteria, the wall and the anchor are considered to behave elastically. Prescribed displacement at the lower bottom boundary represents the earthquake motion. Far left and right absorbent boundaries are assumed to prevent dynamic wave reflection. Four static phases representing construction procedure and one dynamic loading phase are considered. It is found that the straining actions of different historical earthquakes match in shape with each other, the only change is in the amplitude which is affected by earthquake fundamental frequency and its intensity. The maximum dynamic lateral displacement of the wall is at its free top. The near-by building shows a differential settlement towards the wall which causes a change in the sign and amplitude of the straining actions. Increasing the stiffness of anchor was also studied and it was found that it reduces too much the maximum dynamic top wall lateral displacement.

  14. EDITORIAL: Strongly correlated electron systems Strongly correlated electron systems

    Science.gov (United States)

    Ronning, Filip; Batista, Cristian

    2011-03-01

    Strongly correlated electrons is an exciting and diverse field in condensed matter physics. This special issue aims to capture some of that excitement and recent developments in the field. Given that this issue was inspired by the 2010 International Conference on Strongly Correlated Electron Systems (SCES 2010), we briefly give some history in order to place this issue in context. The 2010 International Conference on Strongly Correlated Electron Systems was held in Santa Fe, New Mexico, a reunion of sorts from the 1989 International Conference on the Physics of Highly Correlated Electron Systems that also convened in Santa Fe. SCES 2010—co-chaired by John Sarrao and Joe Thompson—followed the tradition of earlier conferences, in this century, hosted by Buzios (2008), Houston (2007), Vienna (2005), Karlsruhe (2004), Krakow (2002) and Ann Arbor (2001). Every three years since 1997, SCES has joined the International Conference on Magnetism (ICM), held in Recife (2000), Rome (2003), Kyoto (2006) and Karlsruhe (2009). Like its predecessors, SCES 2010 topics included strongly correlated f- and d-electron systems, heavy-fermion behaviors, quantum-phase transitions, non-Fermi liquid phenomena, unconventional superconductivity, and emergent states that arise from electronic correlations. Recent developments from studies of quantum magnetism and cold atoms complemented the traditional subjects and were included in SCES 2010. 2010 celebrated the 400th anniversary of Santa Fe as well as the birth of astronomy. So what's the connection to SCES? The Dutch invention of the first practical telescope and its use by Galileo in 1610 and subsequent years overturned dogma that the sun revolved about the earth. This revolutionary, and at the time heretical, conclusion required innovative combinations of new instrumentation, observation and mathematics. These same combinations are just as important 400 years later and are the foundation of scientific discoveries that were discussed

  15. Understanding the experiences of mothers who are breastfeeding an infant with tongue-tie: a phenomenological study.

    Science.gov (United States)

    Edmunds, Janet Elizabeth; Fulbrook, Paul; Miles, Sandra

    2013-05-01

    Tongue-tie or ankyloglossia is a congenital condition that negatively affects breastfeeding. The thickened, tightened, or shortened frenulum affects the infant's ability to suck and frequently results in sore and painful nipples. Although several studies have investigated outcomes associated with treatment of tongue-tie, none have investigated mothers' experiences of breastfeeding an infant with tongue-tie. This study aimed to understand the breastfeeding experiences of women whose infants have tongue-tie. A hermeneutic phenomenological design was employed. Data were collected using focused interviews and, following transcription, were analyzed in the phenomenological tradition. Ten women who presented at a breastfeeding clinic with feeding problems, and were diagnosed with tongue-tie, were interviewed on 2 occasions. The analysis revealed a common story of tension between the mothers' expectations and the breastfeeding challenges they faced. Their journey was characterized by 6 distinct phases described in the following themes: Expectations; Something is wrong; Questioning, seeking advice, no real answers; Symptoms and perseverance; Approaching the wall-it's all too much; and finally, Relief. The women in this study described a somewhat harrowing journey, which was at odds with the natural experience they had anticipated. They encountered health professionals who were found to have limited knowledge of tongue-tie and its potential effect on breastfeeding and were unable to provide appropriate advice concerning their breastfeeding difficulties. However, following treatment with frenotomy, their breastfeeding experience improved dramatically. The reported incidence of tongue-tie is significant, and early identification and prompt and effective management would contribute to improved breastfeeding.

  16. Constructing Current Singularity in a 3D Line-tied Plasma

    Science.gov (United States)

    Zhou, Yao; Huang, Yi-Min; Qin, Hong; Bhattacharjee, A.

    2018-01-01

    We revisit Parker’s conjecture of current singularity formation in 3D line-tied plasmas using a recently developed numerical method, variational integration for ideal magnetohydrodynamics in Lagrangian labeling. With the frozen-in equation built-in, the method is free of artificial reconnection, and hence it is arguably an optimal tool for studying current singularity formation. Using this method, the formation of current singularity has previously been confirmed in the Hahm–Kulsrud–Taylor problem in 2D. In this paper, we extend this problem to 3D line-tied geometry. The linear solution, which is singular in 2D, is found to be smooth for arbitrary system length. However, with finite amplitude, the linear solution can become pathological when the system is sufficiently long. The nonlinear solutions turn out to be smooth for short systems. Nonetheless, the scaling of peak current density versus system length suggests that the nonlinear solution may become singular at finite length. With the results in hand, we can neither confirm nor rule out this possibility conclusively, since we cannot obtain solutions with system length near the extrapolated critical value.

  17. Review of tongue-tie release at a tertiary maternity hospital.

    Science.gov (United States)

    Amir, Lisa Helen; James, Jennifer Patricia; Beatty, Joanne

    2005-01-01

    To review the first 12 months of assessment and release of lingual frenulum (frenotomy) at a breast-feeding clinic in a tertiary maternity hospital (August 2002 to end of July 2003) and to report on the breast-feeding outcomes and parental satisfaction. A structured telephone interview was conducted with the mother at least 3 months after the assessment. Data were collected about the presenting problem and the effect of release of the tongue-tie (if performed). Parents were also asked about their satisfaction with the procedure and of problems following the release. Sixty-six babies were assessed in 12 months. If infants were assessed as: (i) having impaired lingual function (using the Hazelbaker assessment tool for lingual frenulum function); (ii) the frenulum visualized to be a thin membrane; and (iii) the parent(s) gave informed consent, the frenulum was released. Initial and follow-up data are available on 46 infants. Infants had a mean age of 18 days (range 3-98), 63% were male infants and most had difficulties with attachment to the breast. Frenotomy was performed on 35 infants and breast-feeding improved in 83%. Parents reported high levels of satisfaction with the frenotomy procedure and no complications were reported. Frenotomy is a safe and easy procedure. Infants with a significant tongue-tie that is interfering with breast-feeding have shown an improvement with breast-feeding following frenotomy.

  18. Accreditation of midwife lactation consultants to perform infant tongue-tie release.

    Science.gov (United States)

    Amir, Lisa H; James, Jennifer P; Kelso, Georgie; Moorhead, Anita M

    2011-12-01

    Infants with a tongue-tie or ankyloglossia have a short lingual frenulum, which can lead to problems with breastfeeding: attachment difficulties, nipple pain and damage, poor weight gain and eventually a reduction in milk supply. Trained clinicians can release the frenulum (frenotomy) in infants having difficulty with breastfeeding. Although traditionally performed by medical practitioners, we argue that this simple procedure is within the scope of practice of other clinicians. This paper outlines the process of setting up and maintaining credentialing for midwife lactation consultants (International Board Certified Lactation Consultants (IBCLCs)) to assess infant tongue-ties and perform frenotomy when appropriate at a tertiary maternity hospital. Since 2005, 11 midwives/IBCLCs have been credentialed to perform frenotomies at The Breastfeeding Education and Support Services at The Royal Women's Hospital in Melbourne, Australia. We believe that nurses/midwives/lactation consultants working in other settings could be trained to perform frenotomies, thus enabling faster resolution of breastfeeding problems. © 2011 Blackwell Publishing Asia Pty Ltd.

  19. Dynamic Equivalent Modeling of a Grid-Tied Microgrid Based on Characteristic Model and Measurement Data

    Directory of Open Access Journals (Sweden)

    Changchun Cai

    2017-11-01

    Full Text Available Microgrids can significantly improve the utilization of distributed generation (DG and the reliability of the power supply. However, in the grid-tied operational mode, the interaction between the microgrid and the distribution network cannot be ignored. The paper proposes an equivalent modeling method for the microgrid under grid-tied mode based on a characteristic model. It can simplify the microgrid model in the numerical simulation of the distribution network. The proposed equivalent model can present the dynamic response of a microgrid but not miss any of its primary characteristics. The characteristic model is represented by a low-order time-varying differential equation with the same characteristics of the original microgrid system. During the modeling process, the voltage and the power exchanged between the microgrid and distribution network are collected as the training data for the identification of model parameters. A recursive damped least squares algorithm (RDLS is used for the parameter identification. A microgrid system containing different DGs is built to test the proposed modeling method in DIgSILENT, and the results show that the proposed dynamic equivalent modeling method is effective and the characteristic model can present the dynamic behaviors of the detailed model of a microgrid.

  20. Strut and tie modeling for RC short beams with corroded stirrups

    Directory of Open Access Journals (Sweden)

    Ahmed K. El-Sayed

    Full Text Available Corrosion of steel reinforcement is one of the major problems that shorten the service life of reinforced concrete (RC structures. Steel stirrups, due to their location as an outer reinforcement, are more susceptible to corrosion problems and damage. However, there is limited research work in the literature on the effects of stirrup corrosion on the shear strength of RC beams. This paper attempts to evaluate analytically the residual shear strength of RC short beams with corrosion-damaged stirrups. The shear strength of short or deep beams are generally determined using the strut and tie model. The corrosion effects were implemented in the model to make it capable of predicting the residual shear capacity of RC beams with corroded stirrups. The effect of corrosion is implemented considering the reduction in geometry of the concrete cross section due to spalling and reduction in effective compressive strength of concrete due to corrosion cracks. The proposed strut and tie model which accounts for the corrosion effects was verified using the experimental data available in the literature, and good agreement was found.