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Tesi sul tema "Attachment network"
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1
Belinkov, Yonatan. "Neural network architectures for Prepositional Phrase attachment disambiguation". Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/91147.
Testo completoAbstract (sommario):
Thesis: S.M. in Computer Science and Engineering, Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
25
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 41-44).
This thesis addresses the problem of Prepositional Phrase (PP) attachment disambiguation, a key challenge in syntactic parsing. In natural language sentences, a PP may often be attached to several possible candidates. While humans can usually identify the correct candidate successfully, syntactic parsers are known to have high error rated on this kind of construction. This work explores the use of compositional models of meaning in choosing the correct attachment location. The compositional model is defined using a recursive neural network. Word vector representations are obtained from large amounts of raw text and fed into the neural network. The vectors are first forward propagated up the network in order to create a composite representation, which is used to score all possible candidates. In training, errors are back-propagated down the network such that the composition matrix is updated from the supervised data. Several possible neural architectures are designed and experimentally tested in both English and Arabic data sets. As a comparative system, we offer a learning-to-rank algorithm based on an SVM classifier which has access to a wide range of features. The performance of this system is compared to the compositional models.
by Yonatan Belinkov.
S.M. in Computer Science and Engineering
2
Ouellette, David M. "The Social Network and Attachment Bases of Loneliness". VCU Scholars Compass, 2004. http://scholarscompass.vcu.edu/etd/949.
Testo completoAbstract (sommario):
This thesis tests Robert S. Weiss's 1973 theory of loneliness, which claims two types of loneliness: emotional and social. Emotional loneliness is the affective reaction to the absence of a close attachment bond. Social loneliness stems from inadequate integration into a social network. Undergraduate residents of a university dormitory completed questionnaires on loneliness, attachment, personality, and relationships with other dorm residents. Patterns of relational ties among participants were evaluated using social network analysis, specifically density, tie strength, and four forms of centrality. Results reveal that, while controlling for neuroticism, the network measure of outdegree and the two attachment dimensions accounted for more than half the variance in loneliness, R = .73. None of the three predictors intercorrelated significantly. A portion of loneliness is derived from one's internal attachment security and a separate portion is derived from the external features of one's social network integration.
3
Abdelzaher, Ahmed F. "Identifying Parameters for Robust Network Growth using Attachment Kernels: A case study on directed and undirected networks". VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4481.
Testo completoAbstract (sommario):
Network growing mechanisms are used to construct random networks that have structural behaviors similar to existing networks such as genetic networks, in efforts of understanding the evolution of complex topologies. Popular mechanisms, such as preferential attachment, are capable of preserving network features such as the degree distribution. However, little is known about such randomly grown structures regarding robustness to disturbances (e.g., edge deletions). Moreover, preferential attachment does not target optimizing the network's functionality, such as information flow. Here, we consider a network to be optimal if it's natural functionality is relatively high in addition to possessing some degree of robustness to disturbances. Specifically, a robust network would continue to (1) transmit information, (2) preserve it's connectivity and (3) preserve internal clusters post failures. In efforts to pinpoint features that would possibly replace or collaborate with the degree of a node as criteria for preferential attachment, we present a case study on both; undirected and directed networks. For undirected networks, we make a case study on wireless sensor networks in which we outline a strategy using Support Vector Regression. For Directed networks, we formulate an Integer Linear Program to gauge the exact transcriptional regulatory network optimal structures, from there on we can identify variations in structural features post optimization.
4
Tsipenyuk, Gregory. "Evaluation of decentralized email architecture and social network analysis based on email attachment sharing". Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/273963.
Testo completoAbstract (sommario):
Present day email is provided by centralized services running in the cloud. The services transparently connect users behind middleboxes and provide backup, redundancy, and high availability at the expense of user privacy. In present day mobile environments, users can access and modify email from multiple devices with updates reconciled on the central server. Prioritizing updates is difficult and may be undesirable. Moreover, legacy email protocols do not provide optimal email synchronization and access. Recent phenomena of the Internet of Things (IoT) will see the number of interconnected devices grow to 27 billion by 2021. In the first part of my dissertation I am proposing a decentralized email architecture which takes advantage of user's a IoT devices to maintain a complete email history. This addresses the email reconciliation issue and places data under user control. I replace legacy email protocols with a synchronization protocol to achieve eventual consistency of email and optimize bandwidth and energy usage. The architecture is evaluated on a Raspberry Pi computer. There is an extensive body of research on Social Network Analysis (SNA) based on email archives. Typically, the analyzed network reflects either communication between users or a relationship between the email and the information found in the email's header and the body. This approach discards either all or some email attachments that cannot be converted to text; for instance, images. Yet attachments may use up to 90% of an email archive size. In the second part of my dissertation I suggest extracting the network from email attachments shared between users. I hypothesize that the network extracted from shared email attachments might provide more insight into the social structure of the email archive. I evaluate communication and shared email attachments networks by analyzing common centrality measures and classication and clustering algorithms. I further demonstrate how the analysis of the shared attachments network can be used to optimize the proposed decentralized email architecture.
5
Zheng, Huanyang. "SOCIAL NETWORK ARCHITECTURES AND APPLICATIONS". Diss., Temple University Libraries, 2017. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/470889.
Testo completoAbstract (sommario):
Computer and Information SciencePh.D.
Rather than being randomly wired together, the components of complex network systems are recently reported to represent a scale-free architecture, in which the node degree distribution follows power-law. While social networks are scale-free, it is natural to utilize their structural properties in some social network applications. As a result, this dissertation explores social network architectures, and in turn, leverages these architectures to facilitate some influence and information propagation applications. Social network architectures are analyzed in two different aspects. The first aspect focuses on the node degree snowballing effects (i.e., degree growth effects) in social networks, which is based on an age-sensitive preferential attachment model. The impact of the initial links is explored, in terms of accelerating the node degree snowballing effects. The second aspect focuses on Nested Scale-Free Architectures (NSFAs) for social networks. The scale-free architecture is a classic concept, which means that the node degree distribution follows the power-law distribution. `Nested' indicates that the scale-free architecture is preserved when low-degree nodes and their associated connections are iteratively removed. NSFA has a bounded hierarchy. Based on the social network structure, this dissertation explores two influence propagation applications for the Social Influence Maximization Problem (SIMP). The first application is a friend recommendation strategy with the perspective of social influence maximization. For the system provider, the objective is to recommend a fixed number of new friends to a given user, such that the given user can maximize his/her social influence through making new friends. This problem is proved to be NP-hard by reduction from the SIMP. A greedy friend recommendation algorithm with an approximation ratio of $1-e^{-1}$ is proposed. The second application studies the SIMP with the crowd influence, which is NP-hard, monotone, non-submodular, and inapproximable in general graphs. However, since user connections in Online Social Networks (OSNs) are not random, approximations can be obtained by leveraging the structural properties of OSNs. The modularity, denoted by $\Delta$, is proposed to measure to what degree this problem violates the submodularity. Two approximation algorithms are proposed with ratios of $\frac{1}{\Delta+2}$ and $1-e^{-1/(\Delta+1)}$, respectively. Beside the influence propagation applications, this dissertation further explores three different information propagation applications. The first application is a social network quarantine strategy, which can eliminate epidemic outbreaks with minimal isolation costs. This problem is NP-hard. An approximation algorithm with a ratio of 2 is proposed through utilizing the problem properties of feasibility and minimality. The second application is a rating prediction scheme, called DynFluid, based on the fluid dynamics. DynFluid analogizes the rating reference among the users in OSNs to the fluid flow among containers. The third application is an information cascade prediction framework: given the social current cascade and social topology, the number of propagated users at a future time slot is predicted. To reduce prediction time complexities, the spatiotemporal cascade information (a larger size of data) is decomposed to user characteristics (a smaller size of data) for subsequent predictions. All these three applications are based on the social network structure.
Temple University--Theses
6
Ouellette, David M. "Shadows on the Cave Wall: The Cognitive Accuracy of Social Network Perception". VCU Scholars Compass, 2008. http://hdl.handle.net/10156/2249.
Testo completo
7
Berg, Junker Maria Constance. "Neural correlates of romantic love and romantic attachment". Thesis, Högskolan i Skövde, Institutionen för biovetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-16055.
Testo completoAbstract (sommario):
In the field of neuroscience, being in love and feeling romantically attached to a partner is described as a dynamic process. Romantic love may be viewed as a motivational system, changing throughout time and place, fluctuating on the interest and motivation of the individual. Early memories and attachment towards a caregiver, lay the foundation for later attachment behavior, also known as attachment styles. In this thesis, an exploratory approach is present. The thesis aims to introduce and describe the neural correlates of romantic love and romantic attachment. Brain regions concerned with reward, emotion and thought processing, such as the reward circuitry network of the brain and the limbic system, are being investigated. So are other brain areas involved in romantic love and romantic attachment. Research findings suggest that brain areas responsible for affection, emotional control, learning, memory and social judgment are all involved in the complex processes of being in love and feeling romantically attached. These findings are represented by the involvement of the frontal lobe, cerebral cortex, limbic system, orbitofrontal cortex, and hippocampus, anterior cingulate cortex (ACC), ventral tegmental area (VTA), caudate tail, including the reward pathways of the brain. Distribution and regulation of neurotransmitters such as; vasopressin, oxytocin, dopamine, corticosterone and serotonin are all present in the state of romantic attachment and romantic love. Overlapping evidence confirms the involvement of the reward circuitry network, together with the limbic system as crucial in the formation and maintenance of a romantic relationship.
8
Woolford, Brittany. "Adolescent's Social Networking Use and Its Relationship to Attachment and Mental Health". Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc955025/.
Testo completoAbstract (sommario):
Adolescents spend much of their time using the internet and electronic media. Since its inception, the use of online social networking (OSN) sites by adolescents continues to grow. With the proliferation of OSN, it is critical to examine how this activity affects psychological development, but better measurement tools are needed. As researchers struggle to keep up with this rapidly growing field, many gaps remain in the literature investigating the interrelations between adolescent's OSN use and mental health outcomes. Research examining the relationship between OSN and mental health outcomes, specifically depression and anxiety, has produced mixed results suggesting that other factors influence this association. A large research literature documents associations between attachment and mental health. Given that attachment also affects interpersonal communication, several studies have investigated links between attachment and OSN use in adult and college populations. Results indicated that even though attachment to father was independently related to anxiety and depression symptoms, it was not a significant moderator for mental health and OSN. Attachment to mother was a significant moderator for anxiety and depression and several OSN subscales. Based on this information, a greater focus on youth's interpersonal connection and social skills both online and offline may be beneficial when treating adolescents experiencing anxiety or depression.
9
Dabkowski, Matthew Francis. "Using Network Science to Estimate the Cost of Architectural Growth". Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/612431.
Testo completoAbstract (sommario):
Between 1997 and 2009, 47 major defense acquisition programs experienced cost overruns of at least 15% or 30% over their current or original baseline estimates, respectively (GAO, 2011, p. 1). Known formally as a Nunn-McCurdy breach (GAO, 2011, p. 1), the reasons for this excessive growth are myriad, although nearly 70% of the cases identified engineering and design issues as a contributing factor (GAO, 2011, p. 5). Accordingly, Congress legislatively acknowledged the need for change in 2009 with the passage of the Weapon Systems Acquisition Reform Act (WSARA, 2009), which mandated additional rigor and accountability in early life cycle (or Pre-Milestone A) cost estimation. Consistent with this effort, the Department of Defense has recently required more system specification earlier in the life cycle, notably the submission of detailed architectural models, and this has created opportunities for new approaches. In this dissertation, I describe my effort to transform one such model (or view), namely the SV-3, into computational knowledge that can be leveraged in Pre-Milestone A cost estimation and risk analysis. The principal contribution of my work is Algorithm 3-a novel, network science-based method for estimating the cost of unforeseen architectural growth in defense programs. Specifically, using number theory, network science, simulation, and statistical analysis, I simultaneously find the best fitting probability mass functions and strengths of preferential attachment for an incoming subsystem's interfaces, and I apply blockmodeling to find the SV-3's globally optimal macrostructure. Leveraging these inputs, I use Monte Carlo simulation and the Constructive Systems Engineering Cost Model to estimate the systems engineering effort required to connect a new subsystem to the existing architecture. This effort is chronicled by the five articles given in Appendices A through C, and it is summarized in Chapter 2.In addition to Algorithm 3, there are several important, tangential outcomes of this work, including: an explicit connection between Model Based System Engineering and parametric cost modeling, a general procedure for organizations to improve the measurement reliability of their early life cycle cost estimates, and several exact and heuristic methods for the blockmodeling of one-, two-, and mixed-mode networks. More generally, this research highlights the benefits of applying network science to systems engineering, and it reinforces the value of viewing architectural models as computational objects.
10
Underwood, Heather, e hjocat@bigpond com. "Who goes there? : demographics, personality and attachment style of those involved in internet affairs". Swinburne University of Technology, 2005. http://adt.lib.swin.edu.au./public/adt-VSWT20051124.091812.
Testo completoAbstract (sommario):
The overall aim of this thesis was to explore the impact of Internet relationships on regular ongoing relationships from the point of view of those engaged in such relationships. Two studies were conducted. A sample of 75 participants, including 22 females and 53 males who were married or living in defacto relationships and ranging in age from 18 to 75 years completed an anonymous online survey for
Study One. Demographic characteristics, frequency and method of communication and relationship satisfaction were investigated. Questions were asked about Internet relationship formation. Respondents were asked to gauge levels of self-disclosure within their regular ongoing relationship and their online relationship. They were also asked about the proximity and physical attractiveness of their online partner. It was found that most respondents communicated daily, were more satisfied with their Internet partner than their regular ongoing partner, considered their Internet partner physically attractive
and communicated in a highly intimate manner. The purpose of the second study was to investigate the similarities and differences between the personality characteristics and
attachment styles of respondents. Participants in the second study were 133 respondents
who were married or living in defacto relationships, including 47 females and 86 males
ranging in age from 18 years to 66 years. Respondents completed an anonymous online survey, which included measures of personality (e.g. the International Personality Item
Pool, Goldberg, 1999), the Relationship Satisfaction questionnaire (Hendrick, 1988), and
the Experiences in Close Relationships Scale (Brennan, Clark, & Shaver, 1998). Respondents were found to be somewhat more agreeable and conscientious, and less narcissistic than previous research had found to be the case for those individuals who engaged in face-to-face infidelity. The preoccupied attachment group was well represented, but was less differentiated from the other attachment groups than was the fearful group, who were mainly female. The personality profile and attachment style of respondents in Study Two was, therefore, found to be different in important ways from that which has been associated with face-to-face infidelity. Findings were discussed in terms of methodological implications, suggestions for future research and also implications for Counselling Psychologists.
11
Leichsenring, Falk, Jürgen Hoyer, Manfred Beutel, Sabine Herpertz, Wolfgang Hiller, Eva Irle, Peter Joraschky et al. "The Social Phobia Psychotherapy Research Network". Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-133684.
Testo completoAbstract (sommario):
This paper presents the Social Phobia Psychotherapy Research Network. The research program encompasses a coordinated group of studies adopting a standard protocol and an agreed-on set of standardized measures for the assessment and treatment of social phobia (SP). In the central project (study A), a multicenter randomized controlled trial, refined models of manualized cognitive-behavioral therapy and manualized short-term psychodynamic psychotherapy are compared in the treatment of SP. A sample of 512 outpatients will be randomized to either cognitive-behavioral therapy, short-term psychodynamic psychotherapy or waiting list. Assessments will be made at baseline, at the end of treatment and 6 and 12 months after the end of treatment. For quality assurance and treatment integrity, a specific project using highly elaborated measures has been established (project Q). Study A is complemented by 4 interrelated add-on projects focusing on attachment style (study B1), on cost-effectiveness (study B2), on variation in the serotonin transporter gene in SP (study C1) and on structural and functional deviations of the hippocampus and amygdala (study C2). Thus, the Social Phobia Psychotherapy Research Network program enables a highly interdisciplinary research into SP. The unique sample size achieved by the multicenter approach allows for studies of subgroups (e.g. comorbid disorders, isolated vs. generalized SP), of responders and nonresponders of each treatment approach, for generalization of results and for a sufficient power to detect differences between treatments. Psychological and biological parameters will be related to treatment outcome, and variables for differential treatment indication will be gained. Thus, the results provided by the network may have an important impact on the treatment of SP and on the development of treatment guidelines for SPDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich
12
Luo, Hongwei, e Hongwei luo@rmit edu au. "Modelling and simulation of large-scale complex networks". RMIT University. Mathematical and Geospatial Sciences, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080506.142224.
Testo completoAbstract (sommario):
Real-world large-scale complex networks such as the Internet, social networks and biological networks have increasingly attracted the interest of researchers from many areas. Accurate modelling of the statistical regularities of these large-scale networks is critical to understand their global evolving structures and local dynamical patterns. Traditionally, the Erdos and Renyi random graph model has helped the investigation of various homogeneous networks. During the past decade, a special computational methodology has emerged to study complex networks, the outcome of which is identified by two models: the Watts and Strogatz small-world model and the Barabasi-Albert scale-free model. At the core of the complex network modelling process is the extraction of characteristics of real-world networks. I have developed computer simulation algorithms for study of the properties of current theoretical models as well as for the measurement of two real-world complex networks, which lead to the isolation of three complex network modelling essentials. The main contribution of the thesis is the introduction and study of a new General Two-Stage growth model (GTS Model), which aims to describe and analyze many common-featured real-world complex networks. The tools we use to create the model and later perform many measurements on it consist of computer simulations, numerical analysis and mathematical derivations. In particular, two major cases of this GTS model have been studied. One is named the U-P model, which employs a new functional form of the network growth rule: a linear combination of preferential attachment and uniform attachment. The degree distribution of the model is first studied by computer simulation, while the exact solution is also obtained analytically. Two other important properties of complex networks: the characteristic path length and the clustering coefficient are also extensively investigated, obtaining either analytically derived solutions or numerical results by computer simulations. Furthermore, I demonstrate that the hub-hub interaction behaves in effect as the link between a network's topology and resilience property. The other is called the Hybrid model, which incorporates two stages of growth and studies the transition behaviour between the Erdos and Renyi random graph model and the Barabasi-Albert scale-free model. The Hybrid model is measured by extensive numerical simulations focusing on its degree distribution, characteristic path length and clustering coefficient. Although either of the two cases serves as a new approach to modelling real-world large-scale complex networks, perhaps more importantly, the general two-stage model provides a new theoretical framework for complex network modelling, which can be extended in many ways besides the two studied in this thesis.
13
Olofsson, Alexander, e Amin Nouf. "’’Gäst i det som skulle vara mitt hem’’ : En jämförande kvalitativ studie kring sammanbrott i familjehemsplaceringar". Thesis, Umeå universitet, Institutionen för socialt arbete, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-145031.
Testo completoAbstract (sommario):
Kandidatuppsatsen består av en kvalitativ forskningsstudie med innehållsanalys som metod. Syftet är att genomföra en jämförande studie över hur vuxna som tidigare varit familjehemsplacerade som barn ser tillbaka på sin tid som placerad. Variabeln som eftersöks att undersöka är om det finns skillnad i uttryck om sin placering hos de som hade kontinuitet i sin placering i jämförelse med de som haft ett sammanbrott i sin placering vid minst ett tillfälle. Intervjuerna genomfördes med hjälp av en semistrukturerad metod, vilket innebär att att intervjuerna utgår flexibelt från en färdigställd mall, detta innebär att respondenten har friheten att utrycka sig fritt samtidigt som att intervjun får en viss inriktning för att underlätta analysen av materialet. Det insamlade materialet från intervjuerna bearbetades sedan genom transkribering, kodning och kategorisering. För att kunna behandla det bearbetade materialet konstruerades en forskningsöversikt för att kunna begripliga det insamlade materialet. Det framtagna resultatet antyder att personer som har haft sammanbrott i placering upplever större svårigheter att skapa kontaktnät, svårare skolgång samt belyser ett mer utåtagerande beteende. Vidare visar även studien på att ålder vid placering är en viktig faktor för den placerades upplevelse av inkludering i familjehemmet.
14
Ma, Qi. "Reinforcement in Biology : Stochastic models of group formation and network construction". Doctoral thesis, Uppsala universitet, Analys och tillämpad matematik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-186989.
Testo completoAbstract (sommario):
Empirical studies show that similar patterns emerge from a large number of different biological systems. For example, the group size distributions of several fish species and house sparrows all follow power law distributions with an exponential truncation. Networks built by ant colonies, slime mold and those are designed by engineers resemble each other in terms of structure and transportation efficiency. Based on the investigation of experimental data, we propose a variety of simple stochastic models to unravel the underlying mechanisms which lead to the collective phenomena in different systems. All the mechanisms employed in these models are rooted in the concept of selective reinforcement. In some systems the reinforcement can build optimal solutions for biological problem solving. This thesis consists of five papers. In the first three papers, I collaborate with biologists to look into group formation in house sparrows and the movement decisions of damsel fish. In the last two articles, I look at how shortest paths and networks are constructed by slime molds and pheromone laying ants, as well as studying speed-accuracy tradeoffs in slime molds' decision making. The general goal of the study is to better understand how macro level patterns and behaviors emerges from micro level interactions in both spatial and non-spatial biological systems. With the combination of mathematical modeling and experimentation, we are able to reproduce the macro level patterns in the studied biological systems and predict behaviors of the systems using minimum number of parameters.
15
Mönch, Christian. "Distances in preferential attachment networks". Thesis, University of Bath, 2013. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607617.
Testo completoAbstract (sommario):
Preferential attachment networks with power law degree sequence undergo a phase transition when the power law exponent τ changes. For τ > 3 typical distances in the network are logarithmic in the size of the network and for 2 < τ < 3 they are doubly logarithmic. In this thesis, we identify the correct scaling constant for τ ∈ (2, 3) and discover a surprising dichotomy between preferential attachment networks and networks without preferential attachment. This contradicts previous conjectures of universality. Moreover, using a model recently introduced by Dereich and Mörters, we study the critical behaviour at τ = 3, and establish novel results for the scale of the typical distances under lower order perturbations of the attachment function.
16
Johansson, Emelie. "Vem ser barnet? : En kvalitativ studie om psykosocialt stöd till familjen när en förälder lider av en livshotande sjukdom". Thesis, Stockholm University, Department of Social Work, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-40693.
Testo completoAbstract (sommario):
The purpose of this study has been to investigate how psychosocial support for families where a parent suffers from a life threatening illness can be constructed. The intent was also to explore how the child's perspective is protected and what barriers and opportunities there are for family oriented support. The study has a qualitative approach and includes interviews with four social workers. The interviews were analyzed with a systems theory and attachment theory. The conclusions are that the whole family suffers psychological and social pressures when a parent is sick. The psychosocial support is given individually and to the family as a unit to help them deal with their changed life situation and facilitate subsequent grieving. An important aspect of the support is psycho education to parents and children, which aims to increase the understanding of the situation, their individual and each others' reactions. The social workers stress that it’s important to establish contacts in the family’s private network and support agencies in the community.
It falls under the medical mission to offer support to relatives and it includes a responsibility to inform and support the child based on individual circumstances. However, there seems to exist a variation and uncertainty about its nature and extent. Therefore professionals need to be aware of the importance of highlighting the child’s needs and support families.
17
Leichsenring, Falk, Jürgen Hoyer, Manfred Beutel, Sabine Herpertz, Wolfgang Hiller, Eva Irle, Peter Joraschky et al. "The Social Phobia Psychotherapy Research Network: The First Multicenter Randomized Controlled Trial of Psychotherapy for Social Phobia: Rationale, Methods and Patient Characteristics". Karger, 2009. https://tud.qucosa.de/id/qucosa%3A27526.
Testo completoAbstract (sommario):
This paper presents the Social Phobia Psychotherapy Research Network. The research program encompasses a coordinated group of studies adopting a standard protocol and an agreed-on set of standardized measures for the assessment and treatment of social phobia (SP). In the central project (study A), a multicenter randomized controlled trial, refined models of manualized cognitive-behavioral therapy and manualized short-term psychodynamic psychotherapy are compared in the treatment of SP. A sample of 512 outpatients will be randomized to either cognitive-behavioral therapy, short-term psychodynamic psychotherapy or waiting list. Assessments will be made at baseline, at the end of treatment and 6 and 12 months after the end of treatment. For quality assurance and treatment integrity, a specific project using highly elaborated measures has been established (project Q). Study A is complemented by 4 interrelated add-on projects focusing on attachment style (study B1), on cost-effectiveness (study B2), on variation in the serotonin transporter gene in SP (study C1) and on structural and functional deviations of the hippocampus and amygdala (study C2). Thus, the Social Phobia Psychotherapy Research Network program enables a highly interdisciplinary research into SP. The unique sample size achieved by the multicenter approach allows for studies of subgroups (e.g. comorbid disorders, isolated vs. generalized SP), of responders and nonresponders of each treatment approach, for generalization of results and for a sufficient power to detect differences between treatments. Psychological and biological parameters will be related to treatment outcome, and variables for differential treatment indication will be gained. Thus, the results provided by the network may have an important impact on the treatment of SP and on the development of treatment guidelines for SP.Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
18
Picksley, Patience Alice. "Evaluating the use of attachment measures to understand the quality of children's attachment relationships and networks". Thesis, University of Southampton, 2014. https://eprints.soton.ac.uk/370402/.
Testo completoAbstract (sommario):
There is an increased focus on attachment and its impact on educational outcomes in recent literature. In order to promote effective practices in educational psychology, it is important that research is able to assess children’s attachment networks easily and reliably. To understand what measures are available, reliable and usable across primary aged children (6–12 years), a systematic review of the literature was conducted. Measures elicited from papers were grouped by the underlying constructs they assessed: attachment patterns, quality of attachment relationships and attachment networks, and the assessment method used: representational and behavioural, and self-report. Validity and reliability of measures was good, but limited measures existed that assessed attachment networks, and which could be used over a large age range. To determine whether a Hierarchical Mapping Technique (HMT) was a useful way of assessing attachment networks in primary aged children, 93 children aged 9–10 years completed the HMT and a self-report measure of attachment anxiety and avoidance. Children also completed an attachment figure interview which rated hierarchical preferences of attachment network members for attachment and companionship questions. Results revealed the HMT was a quick and easy way of mapping attachment networks in children. Boys had fewer network members and placed their network members closer to the core-self than girls. An anxious father-child relationship predicted the placement of fathers further away from the core self. Mothers and grandparents who were placed closer to the core self were also more likely to be nominated to fulfil attachment needs. Very few children placed teachers within networks. Implications for educational psychology and future research are discussed.
19
Youssef, Bassant El Sayed. "Models for the Generation of Heterogeneous Complex Networks". Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/54009.
Testo completoAbstract (sommario):
Complex networks are composed of a large number of interacting nodes. Examples of complex networks include the topology of the Internet, connections between websites or web pages in the World Wide Web (WWW), and connections between participants in social networks.Due to their ubiquity, modeling complex networks is importantfor answering many research questions that cannot be answered without a mathematical model. For example, mathematical models of complex networks can be used to find the most vulnerable nodes to protect during a virus attack in theInternet, to predict connections between websites in the WWW, or to find members of different communities insocial networks. Researchers have analyzed complex networksand concluded that they are distinguished from other networks by four specific statistical properties. These four statistical properties are commonly known in this field as: (i) thesmall world effect,(ii) high average clustering coefficient, (iii) scale-free power law degree distribution, and (iv) emergence of community structure. These four statistical properties are further described later in this dissertation.
Mostmodels used to generate complex networks attempt to produce networks with these statistical properties. Additionally, most of these network models generate homogeneous complex networks where all the networknodes are considered to have the same properties. Homogenous complex networks neglect the heterogeneous nature ofthe nodes in many complexnetworks. Moreover, somemodels proposed for generating heterogeneous complexnetworks are not general as they make specific assumptions about the properties of the network.Including heterogeneity in the connection algorithm of a modelwould makeitmore suitable for generating the subset of complex networks that exhibit selective linking.Additionally, all modelsproposed, to date, for generating heterogeneous complex networks do not preserve all four of the statistical properties of complexnetworks stated above. Thus, formulation of a model for the generation of general heterogeneous complex networkswith characteristics that resemble as much as possible the statistical properties common to the real-world networks that have received attention from the research community is still an open research question.
In this work, we propose two new types of models to generate heterogeneous complex networks. First, we introduce the Integrated Attribute Similarity Model (IASM). IASM uses preferential attachment(PA) to connect nodes based on a similarity measure for node attributes combined with a node's structural popularity measure. IASM integrates the attribute similarity measure and a structural popularity measure in the computation of the connection function used to determine connectionsbetween each arriving (newly created) node and the existing(previously created or old) network nodes. IASM is also the first model known to assign an attribute vector having more than one element to each node, thus allowing different attributes per node in the generated complex network. Networks generated using IASM have a power law degree distribution and preserve the small world phenomenon. IASM models are enhanced to increase their clustering coefficient using a triad formation step (TFS). In a TFS, a node connects to the neighbor of the node to which it was previously connected through preferential attachment, thus forming a triad. The TFS increases the number of triads that are formed in the generated network which increases the network's average clustering coefficient.
We also introduce a second novel model,the Settling Node Adaptive Model (SNAM). SNAM reflects the heterogeneous nature of connectionstandard requirements for nodes. The connectionstandard requirements for a noderefers to the values of attribute similarity and/or structural popularityof old node ythat node new xwould find acceptable in order to connect to node y.SNAM is novel in that such a node connection criterion is not included in any previous model for the generation of complex networks. SNAM is shown to be successful in preserving the power law degree distribution, the small world phenomenon, and the high clustering coefficient of complex networks.
Next,we implement a modification to the IASM and SNAM models that results in the emergence of community structure.Nodes are classified into classes according to their attribute values. The connection algorithm is modified to include the class similarity values between network nodes. This community structure model preservesthe PL degree distribution, small world property, and does not affect average clustering coefficient values expected from both IASM and SNAM. Additionally, the model exhibits the presence of community structure having most of the connections made between nodes belonging to the same class with only a small percent of the connections made between nodes of different classes.
We perform a mathematical analysis of IASM and SNAM to study the degree distribution for networks generated by both models. This mathematical analysis shows that networks generated by both models have a power law degree distribution.
Finally, we completed a case study to illustrate the potential value of our research on the modeling of heterogeneous complex networks. This case study was performed on a Facebook dataset. The case study shows that SNAM, with some modifications to the connection algorithm, is capable of generating a network with almost the same characteristics as found for the original dataset. The case study providesinsight on how the flexibility of SNAM's connection algorithm can be an advantagethat makes SNAM capable of generating networks with different statistical properties.
Ideas for future research areas includestudyingthe effect of using eigenvector centrality, instead of degree centrality, on the emergence of community structure in IASM; usingthe nodeindex as an indication for its order of arrival to the network and distributing added connections fairly among networknodes along the life of the generated network; experimenting with the nature of attributesto generatea more comprehensive model; and usingtime sensitive attributes in the models, where the attribute can change its value with time,Ph. D.
20
Raje, Archis Vijay. "Analysis of e-mail attachment signatures for potential use by intrusion detection systems". Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3395.
Testo completoAbstract (sommario):
Thesis (M.S.)--West Virginia University, 2004.Title from document title page. Document formatted into pages; contains ix, 57 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 49-51).
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Beshara, Gloria E. "Attachment, perceptions of social support, and social integration: implications for adolescents at risk of school dropout /". Burnaby B.C. : Simon Fraser University, 2005. http://ir.lib.sfu.ca/handle/1892/2069.
Testo completo
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Stillo, Nicole D. "Sexual Behavior During the Emerging Adult Years: Attachment and Social Support Perspectives". Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc700062/.
Testo completoAbstract (sommario):
The purpose of this study was to better understand sexual development during the transition to adulthood. Previous research was extended by testing models that examined direct effects of romantic attachment and social support on emerging adults’ sexual outcomes, as well as models that examined the mediating role of sexual motivations in those associations. Undergraduate students (n = 290, 66% female) completed questionnaires that assessed romantic attachment, social support, sexual motives, risky sexual behaviors, and health-promoting sexual beliefs. Results indicated romantic attachment strongly predicted sexual functioning, such that higher levels of attachment insecurity were associated with fewer health-promoting sexual beliefs and more risky sexual behaviors. Attachment anxiety was most closely associated with sexual outcomes for females, while attachment avoidance was a stronger predictor of sexual outcomes for males. Furthermore, coping but not intimacy motivations were found to partially mediate the link between attachment anxiety and health-promoting sexual beliefs for females. Although overall relationships between social support and sexual outcomes were not significant as hypothesized, links between specific support sources and sexual outcomes emerged during further analysis. Conclusions underscore the usefulness of attachment theory as a framework for understanding sexual behavior and provide further support for the importance of considering gender differences when examining the interplay between the attachment and sexual systems. Practical implications for sexual health prevention and intervention efforts are discussed.
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Kingsford, Rachel. "Self-Rated Health and Community/Social Relations". DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/98.
Testo completoAbstract (sommario):
This study was done to examine the relationship between self-rated health and social/community relations. Due to advances in modern medicine, multifactorial diseases are more prevalent than acute infectious diseases and a greater understanding of the impact sociological variables has on health is of great importance. In prior research, self-rated health has been demonstrated to be a robust predictor of mortality, even when controlling for other variables known to impact health. Presence of a strong social network and attachments to community have been shown to be protective of self-perceptions of health.
The Health and Living study was conducted in the Bear River Health District located in northern Utah in 2004 utilizing a mail survey. The relationship between self-rated health and social network indicators in addition to community attachment variables was evaluated statistically. Demographic variables were also analyzed. Church attendance, number of friends, income, age, and education were found to be statistically significant.
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Grobe, Patricia. "Attachment and delinquency among First Nations adolescents from a remote geographic location". Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=31110.
Testo completoAbstract (sommario):
Attachment theories emphasize the importance of a secure attachment at all stages in life. In secure attachment relationships, individuals are confident that during times of real or perceived distress they can rely on the attachment figure to provide desired security. Conversely, individuals with insecure attachments feel they cannot rely on their attachment figures and thus will not be comforted in times of need. Lack of secure attachments can lead to psychological and behavioral difficulties. In the present study, maternal and peer attachments were investigated and related to levels of self-reported delinquency among 84 First Nations adolescent students, ages 11 to 17 from a reserve in a remote geographic location. The results from the present study appear to be congruent with the literature which reports that insecure attachments in youths lead to higher rates of delinquent behaviors. High levels of secure attachments in the participants resulted in low levels of reported delinquency, however the relationship between attachment and delinquency in adolescent participants was found to be dependent on the grade in school and gender interaction.
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Baker, Josephine Kate. "The impact of attachment style on coping strategies, identity development and the perception of social support". Thesis, University of Canterbury. Psychology, 2006. http://hdl.handle.net/10092/1366.
Testo completoAbstract (sommario):
This thesis describes the relationship between adult attachment style, coping strategies, identity development and perception of social support. 107 participants answered four self-report questionnaires examining their attachment style, coping strategies, identity development status and perception of social support. Correlation analyses were used. Results showed secure attachment to significantly positively correlate with identity moratorium and to negatively correlate with identity foreclosure. Avoidant attachment significantly positively correlated with denial and mental disengagement and negatively correlated with seeking social support. Individuals with high avoidant attachment scores were more likely to have high scores for identity diffusion, more likely to perceive fewer available social supports and were less likely to be satisfied with this support. Anxious ambivalence positively correlated with denial and mental, behavioural and alcohol/drug disengagement, and negatively correlated with active and planning which are pro-active coping strategies. Anxious ambivalence positively correlated with identity diffusion and negatively with identity foreclosure. Individuals with high anxious ambivalence scores were more likely to be dissatisfied with social support. Overall, secure attachment was found to correlate with acknowledging the need for an identity search. Insecure attachment was found to relate to less effective coping methods, to correlate with not acknowledging the need for an identity search and dissatisfaction with social support. Results are considered in terms of attachment styles and applications, for example in therapeutic settings.
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Webb, Lillian K. "How secure internal working models of attachment relate to satisfaction with social supports and career decision self-efficacy". Virtual Press, 2008. http://liblink.bsu.edu/uhtbin/catkey/1409504.
Testo completoAbstract (sommario):
The present study considered the relationships between internal working models of adult attachment, satisfaction with social supports, and career decision self efficacy. Theoretical support was found within the context of Social Cognitive Theory (Bandura, 1986) and Attachment Theory (Bowiby, 1 973 ; Hazen & Shaver, 1994). A conceptual model was proposed and tested using structural equation modeling to answer the research questions: is there a relationship between secure internal working models of attachment and career decision self efficacy, and if so, is the relationship between secure internal working models of attachment and career decision self efficacy partially mediated by satisfaction with social supports? A third research question was considered: are men and women similar in how they experience internal working models of attachment, satisfaction with social supports, and career decision self efficacy? Participants included 663 college-aged students (457 women; 206 men) from two Midwestern universities, with most being in their first or second year of college (72% freshmen/sophomores; 28% juniors or above). Alternate models for men and women were proposed and a multi-group analysis was conducted to determine if groups were similar. Results indicated that the groups were similar. Models were then combined for a comprehensive model representing both men and women. Findings indicated that there was a direct relationship between secure internal working models of attachment and career decision self efficacy and an indirect relationship that was partially mediated by satisfaction with social supports. Theoretical, research, and practice implications are discussed, as well as methodological limitations to the study. Future directions are offered.Department of Counseling Psychology and Guidance Services
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Welander, Abby Ann. "The relationship between childhood sibling attachment and sibling social support during young and middle adulthood". CSUSB ScholarWorks, 1997. https://scholarworks.lib.csusb.edu/etd-project/133.
Testo completo
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Jones, Andrea M. "How influential are they? the role of parents, social support, attachment, and autonomy in college students' likelihood to experience social anxiety /". Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10074.
Testo completo
29
Grierson, Jeffrey, e j. grierson@latrobe edu au. "Community, Attachment, Structures And The Epidemic. CASE A Study of the Importance of Gay Community in the Lives of Gay Men". La Trobe University. Australian Research Centre in Sex, Health and Society, 1998. http://www.lib.latrobe.edu.au./thesis/public/adt-LTU20090129.123239.
Testo completoAbstract (sommario):
Community, Attachment, Structures and the Epidemic maps some of the changes in gay men�s experience and conceptualisation of community that have occurred during the AIDS epidemic. Social identity theory has been employed to investigate the social-psychological aspects of gay identity at personal, social and community levels. The study compares three generations of gay men in Melbourne; pre- peri- and post-AIDS. As a starting point, the study employed focus groups to explore basic conceptions of gay community. In the first of two major data collection phases, 32 gay men between the ages of 18 and 40 participated in semistructured interviews of between 45 minutes and one and a half hours. The interviews explored the men�s social networks, past and present relationship to the commercial gay scene, feelings about gay organisations businesses, neighbourhoods, entertainment, aesthetics, the way they see other gay people, their thoughts about the impact of AIDS on gay communities and their aspirations for gay communities. The second phase of data collection utilised a questionnaire developed from the analysis of the interviews. The 55 item questionnaire covered demographic information, coming out history, initial experiences of the gay world, friendship networks, feelings about the institutions, people and conceptual elements of gay community, items concerning practices of gay community, the community attachment subscale from the SAPA study and items on HIV/AIDS. The questionnaire was completed by 432 gay men, 207 recruited at the Midsumma carnival, an annual gay and lesbian event in Melbourne and 225 through the mailing list of the Victorian AIDS Council. Analysis of the questionnaire data uncovered a complex constellation of difference in the conceptualisation and experience of gay community between the groups, particularly with regard to the content and boundaries of the category �gay community�. The research challenges practice based models of gay community attachment and proposes a more dynamic, fluid and multi-dimensional conceptualisation of gay social identity.
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Dodd, Zane. "Effects of Adult Romantic Attachment and Social Support on Resilience and Depression in Patients with Acquired Disabilities". Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc30452/.
Testo completoAbstract (sommario):
The acquirement of a disability (e.g., spinal cord injury, traumatic brain injury, amputation, multi trauma) is a risk factor for psychological disturbance (e.g., depression). Research has established that social support and secure attachment are protective factors against psychological disturbance. Attachment patterns have also been associated with differences in perceived social support. Secure attachment and higher perceived social support have been implicated in greater levels of resilience but need to be validated with a population of individuals who have acquired a disability. The Experiences in Close Relationships, Social Provisions Scale, Connor-Davidson Resilience Scale, Personal Health Questionnaire - 9 Depression Scale, and a Demographic were administered to 102 adult inpatients at a rehabilitation hospital undergoing an individualized rehabilitation program. Two MANOVAs were conducted to examine the direct associations of attachment classifications with the major dependent variables, as well as the various social support subscales. Path analysis tested two mediational models suggested by literature. Model 1 assessed the mediating role of attachment anxiety and attachment avoidance on the effect of social support on depression and resilience. Model 2 assessed the mediating role of social support on the effect of attachment anxiety or attachment avoidance on depression and resilience. Partial support was obtained for both models based on fit indices. A small but significant difference in the fit of the models was found, favoring Model 1. Clinical and research implications for this population and the limitations of the study are discussed.
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Tucker, Jenna Rae. "It's Complicated: The Role of Facebook in Romantic Relationships Concerning Relational Certainty, Attachment, and Self-Esteem". PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/1983.
Testo completoAbstract (sommario):
Facebook is among the top used websites in the world, and research has shown that Facebook use is related to individual personality characteristics such as well-being and self-esteem. This study builds on previous research, expanding to investigate attachment-related anxiety and avoidance and relational certainty. The current study examined relationships between Facebook use (both general and for surveillance) and relational certainty, attachment-related anxiety and avoidance, and self-esteem in undergraduate students (N = 261). Online methods were used for data collection, and individuals with their relationship displayed on Facebook reported more relational certainty; however, the more time they spent on the site, the less certain they were with their relationship. Individuals with high attachment-related anxiety were more likely to use Facebook for surveillance, and both attachment anxiety and Facebook use for surveillance were linked to lower self-esteem. These findings indicate that individuals with their relationship status displayed on Facebook have more relational certainty and exhibit less attachment-related anxiety and avoidance. Individuals with high attachment anxiety use Facebook for surveillance. These results add to the expanding literature on Facebook and social networking sites, showing that different people use Facebook in varying ways. As social networking continues to be a staple in the lives of nearly one billion users, it is important to keep researching how people use it and what the potential implications of this use are.
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Brännlund, Isabelle. "Histories of reindeer husbandry resilience : land use and social networks of reindeer husbandry in Swedish Sápmi 1740-1920". Doctoral thesis, Umeå universitet, Institutionen för idé- och samhällsstudier, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-100527.
Testo completoAbstract (sommario):
Against a background of ongoing and predicted climatic and environmental change facing humans on a global level, this thesis combines historical perspectives with theories of social resilience in a study of reindeer husbandry in Swedish Sápmi, from the late 18th century to the early 20th century. The thesis includes four individual studies that examine the topic from different angles, connected together by reoccurring elements of social resilience. The first paper analyses the adaptive capacity of reindeer husbandry communities in the northernmost part of Swedish Sápmi during the 19th to early 20th century, using materials from the Sami bailiffs’ archives, governors’ reports and documentation from official committees. The second paper is based on similar materials and explores livelihood diversity of reindeer husbandry in southern and northern regions of Swedish Sápmi from 1860 to 1920. The third paper examines the social networks of reindeer husbandry and includes an analysis on how these are represented in demographic sources at the turn of the 20th century. The fourth and final paper examines taxation lands as objects of place-attachment in a south Sami reindeer husbandry context from 1740 to 1870. The thesis demonstrates that communities and families practiced highly flexible herding in terms of what pasture area they used, when and how they used it and with whom. In order to maintain this flexibility, communities needed authority to manage their own livelihoods and a diverse and interconnected landscape. The results further show that reindeer husbandry was a dynamic and diverse livelihood, well into the 20th century. Fishing, hunting, trapping or farming was part of many reindeer herding families’ livelihoods. By tethering aspects of diversity to norms and ideals within the communities included in the study, I argue that farming can be understood as both an enforced adaptation and as an adaptive capacity depending on the ideals within the community in question. The thesis supports the notions that reindeer husbandry since long has faced many challenges, including: border closings; competing land uses; disturbance from settlers; enforced regulations and laws concerning reindeer husbandry; and restrictions of livelihood diversity. Furthermore, these challenges were not only sources of disturbances in their own right, but they also restricted the adaptive capacity of reindeer herding communities.
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Brady, Ashley Megan, e Kyra Kristine Dotter. "Transitional difficulties among foster youth: A look at social support and attachment". CSUSB ScholarWorks, 2007. https://scholarworks.lib.csusb.edu/etd-project/3146.
Testo completoAbstract (sommario):
The purpose of this study is to examine the level of social support in a sample of foster youth nearing emancipation. Additionally this study seeks to examine if a relationship between social support and anxious and/or avoidant attachment styles can be observed.
34
Hiolle, Antoine. "A developmental approach to the study of affective bonds for human-robot interaction". Thesis, University of Hertfordshire, 2015. http://hdl.handle.net/2299/16566.
Testo completoAbstract (sommario):
Robotics agents are meant to play an increasingly larger role in our everyday lives. To be successfully integrated in our environment, robots will need to develop and display adaptive, robust, and socially suitable behaviours. To tackle these issues, the robotics research community has invested a considerable amount of efforts in modelling robotic architectures inspired by research on living systems, from ethology to developmental psychology. Following a similar approach, this thesis presents the research results of the modelling and experimental testing of robotic architectures based on affective and attachment bonds between young infants and their primary caregiver. I follow a bottom-up approach to the modelling of such bonds, examining how they can promote the situated development of an autonomous robot. Specifically, the models used and the results from the experiments carried out in laboratory settings and with naive users demonstrate the impact such affective bonds have on the learning outcomes of an autonomous robot and on the perception and behaviour of humans. This research leads to the emphasis on the importance of the interplay between the dynamics of the regulatory behaviours performed by a robot and the responsiveness of the human partner. The coupling of such signals and behaviours in an attachment-like dyad determines the nature of the outcomes for the robot, in terms of learning or the satisfaction of other needs. The experiments carried out also demonstrate of the attachment system can help a robot adapt its own social behaviour to that of the human partners, as infants are thought to do during their development.
35
(10177886), Valentina Concu. "Preferential Attachment and Language Change: werden in German". Thesis, 2021.
Cerca il testo completoAbstract (sommario):
This study explores historical syntactic changes within a complex network framework focusing on the development of the German verb werden (to become) and the emergence of the related passive and future periphrases. The data are collected from a corpus of Middle and Early New High German texts and the analysis of the instances is carried out in two different stages. The first stage focuses on the frequency of the verb werden and the elements that co-occurred with it throughout Middle and Early New High German. The second stage investigates the same instances through a complex network framework by applying descriptive statistics to uncover the features of the Middle and Early New High German networks that have been created with the occurrences of werden found in the corpus.
The results of the analysis show that werden experienced an increase in the type of connections it was able to establish throughout the centuries. Such a process is known in the literature as preferential attachment. This suggests that linguistic networks, and specifically, syntactic networks, are also subjected to processes that are common among non-linguistic networks.
36
Bloem-Reddy, Benjamin Michael. "Random Walk Models, Preferential Attachment, and Sequential Monte Carlo Methods for Analysis of Network Data". Thesis, 2017. https://doi.org/10.7916/D8348R5Q.
Testo completoAbstract (sommario):
Networks arise in nearly every branch of science, from biology and physics to sociology and economics. A signature of many network datasets is strong local dependence, which gives rise to phenomena such as sparsity, power law degree distributions, clustering, and structural heterogeneity. Statistical models of networks require a careful balance of flexibility to faithfully capture that dependence, and simplicity, to make analysis and inference tractable. In this dissertation, we introduce a class of models that insert one network edge at a time via a random walk, permitting the location of new edges to depend explicitly on the structure of the existing network, while remaining probabilistically and computationally tractable. Connections to graph kernels are made through the probability generating function of the random walk length distribution. The limiting degree distribution is shown to exhibit power law behavior, and the properties of the limiting degree sequence are studied analytically with martingale methods. In the second part of the dissertation, we develop a class of particle Markov chain Monte Carlo algorithms to perform inference for a large class of sequential random graph models, even when the observation consists only of a single graph. Using these methods, we derive a particle Gibbs sampler for random walk models. Fit to synthetic data, the sampler accurately recovers the model parameters; fit to real data, the model offers insight into the typical length scale of dependence in the network, and provides a new measure of vertex centrality.
The arrival times of new vertices are the key to obtaining results for both theory and inference. In the third part, we undertake a careful study of the relationship between the arrival times, sparsity, and heavy tailed degree distributions in preferential attachment-type models of partitions and graphs. A number of constructive representations of the limiting degrees are obtained, and connections are made to exchangeable Gibbs partitions as well as to recent results on the limiting degrees of preferential attachment graphs.
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"Per[s]onal network and local community attachment: illustrations from two public housing estates in Shatin". Chinese University of Hong Kong, 1987. http://library.cuhk.edu.hk/record=b5885772.
Testo completo
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Lin, Hong-hui. "Attachment relationships and psychological outcomes: a comparison of Singaporean and Australian young adults". Phd thesis, 2015. http://hdl.handle.net/1885/13583.
Testo completoAbstract (sommario):
The impact close relationships have on development, functioning, and wellbeing makes its research important in enriching understanding about the social conditions that support better socio-emotional functioning. While the literature has seen voluminous research on close relationships, cross-cultural research on the topic has received relatively less attention. This dissertation addresses this literature gap by studying close relationships across two cultures, using attachment theory as the theoretical framework. A review of available adult attachment studies between Western and East Asian populations show that: 1) East Asians typically score higher culture level means in attachment insecurity (i.e., attachment anxiety and avoidance) on survey measures, and 2) attachment insecurity appears to more strongly predict worse psychological functioning among East Asians, than Westerners. These differences have been largely attributed to East-West differences in individualism and collectivism levels or related reasons, which are often vaguely defined and not systematically evaluated in existing studies. Current cross-cultural studies also almost overwhelmingly examine individual differences but not attachment normative processes. These findings informed two cross-cultural, cross-sectional studies that sampled college students from Western (Australian) and Eastern/Asian (Singaporean) backgrounds to examine if attachment differences are associated with individualism and collectivism at the individual level. The first study assessed participants’ (Australian n = 143; Singaporean n = 146) personal endorsement of individualism and collectivism, their associations with attachment orientation, and their roles in moderating the relation between attachment and psychological outcomes (i.e., attachment-psychological outcomes link). It also compared the attachment networks and transfer between Singaporeans and Australians. The second study (Australian n = 206;
vii
Singaporean n = 322) used two complementary approaches to assess culture to tease apart the separate associations of personal endorsement and perceived norms of individualism and collectivism with attachment, and assessed the moderating role of person-culture fit in the attachment-psychological outcomes link. Results showed that, across two studies using different attachment scales, the two populations did not score reliably differently in their culture level means of individualism and collectivism or attachment constructs. The two studies corroborated results showing that individual differences in personal endorsement of individualism and collectivism (also perceived norm of collectivism) were associated with individual differences in avoidance, in directions consistent with their conceptual definitions. However, personal endorsement and perceived norm of individualism and collectivism showed non-significant associations with attachment anxiety. At the individual level, there was qualified support that personal endorsement of individualism and collectivism and person-culture fit moderated the attachment-psychological outcomes association. Comparisons of attachment network and transfer showed that Singaporean and Australian late adolescents/young adults showed typical sequential attachment transfer. Romantic partners appeared to play a central role as attachment figures among individuals in a romantic relationship. Entering a romantic relationship seemed to accentuate differences in young adults’ preferences towards different relationship targets as attachment figures between cultures. Overall, results highlighted more similarities than differences in attachment patterns between the cultures examined. It is argued that cultural influences on attachment is better understood through directly examining associations between them rather than comparisons of culture level means. Implications of results, limitations of studies, and future directions for research are discussed.
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Chang, Je-wei, e 張哲瑋. "The Impact of Attachment Style on the Using Behavior of Social Network Sites－With Self-Disclosure as a Mediator". Thesis, 2012. http://ndltd.ncl.edu.tw/handle/62990348309858021670.
Testo completoAbstract (sommario):
碩士東吳大學
企業管理學系
100
Social network sites have been one of the tools we social nowadays. In fact, different users have different behaviors when using the sites. This study bases on the personality theory—attachment style, take Facebook’s users for data, which is register by real name, to explain the reasons of different using behaviors. Because of the real name rule, every personal information published in social network sites can be regarded as self-disclosure behaviors. This study tried to figure out if the self-disclosure actions a mediator between attachment style and using behavior of social network sites? This study classify the 279 valid sample into three attachment styles—safe, avoid and anxiety attachment by cluster analysis, then observed the difference of using behavior between the three attachment style users. The result shows that safe attachment users’s frequence of post and responses are significant higher than those avoidance and anxiety attachment users, but the using time was not remarkable difference, probably the options of the questionnaires was too less to discriminant the differences. The willingness of self-disclosure and frequence of post and responses were positive corelated, and the willingness of self-disclosure played a mediator role between attachment style and using behavior of social network sites. Because of the privacy setting interface is complexity and users distrust the security system, the post privacy setting was not significant affect by the flexibility of self-disclosure and attachment style. The interact in social network sites will finally affects the interactions in reality. Enterprise can invite the high frequence of post and response users to promote the products or activities. Every user has different personality, enterprise must consider the brand personality is compatible to marketing in social network sites or not. Social network sites also provide a space without face to face stress, the avoid attachment or the person lack for sociability can obtain the opportunity to know about other users. If the social network sites provide a mechanism that can enhance the frequence of post or sharing information, probably gain more particitant or prolong the using time, and improve the privacy setting operate interface is necessarily. To sum up, this study provided a deeper understanding of user characteristics for the social network sites operator and enterprise which use it to market.
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Yang, Che-Ming, e 楊則明. "Life Insurance Agents Innovative Learning, Organization Attachment and Service Training Effectiveness Impact Learning Benchmarking Study - from Social Network Analysis Perspective". Thesis, 2013. http://ndltd.ncl.edu.tw/handle/97203538584489499546.
Testo completoAbstract (sommario):
碩士國立暨南國際大學
國際企業學系
101
In Chinese society, creating " Quanxie” is a very important part of interaction, especially in the life insurance industry. Building customer relationships can not only reach the target business operations, but also increase fruitful personal income for the individuals. There are already a lot of relevant researches of the application of the Customer Relationship Management (Customer Relationship Management abbreviated CRM) in Taiwan life insurance industry. However, the life insurance industry customer relationship management often involves life insurance salespeople themselves. Practically speaking, the former applicators often overlooked the training of application personnel and the know-how of application, causing ineffective synchronization operation. In fact, customer relations training work often comes from the head units or peer role models, in order to deal with some hidden implicit in interpersonal skills. This study was designed as following- From a business management perspective, exploring what is the benchmark for cognitive learning of the life insurance salespeople in a community. Also, through innovation and learning, organizational effectiveness and training of three attachment for use of social network theory analysis methods to belong to the individual level of learning discussed benchmarking analysis, research found that social networks benchmark figure indeed generates a "benchmark" effect in a social network. Moreover, it also found out that those who have the resources may not play the key role in sharing of resources. For the enterprises in order to identify benchmark figures, or the real opinion leaders, I hope the study may worth the value.
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Coupe, Tamara Anna. "Attachment networks, attachment style and psychological health in old age". Thesis, 2008. http://hdl.handle.net/1885/150177.
Testo completo
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Oliveira, Diana Ruivo de. "Influence of attachment theory on developmental networks". Master's thesis, 2018. http://hdl.handle.net/10071/16832.
Testo completoAbstract (sommario):
Attachment theory has become one of the most influential theoretical approaches for studying
close relationships across the lifespan. The influence of this theory on organizational
scholarship is growing exponentially and prior research has focused on how attachment
theory impacts workplace dyads, as the leader-follower and mentoring relationships.
Recently, some scholars have proposed that it is relevant to extend it to other developmental
relationships as peers and even to whole developmental networks. Thus, this empirical study
addresses how attachment anxiety and attachment avoidance impact developmental networks
by assessing them in terms of size, range and the quality of the relationships, for both career
support and psychosocial support. Data collected for this study was obtained from a sample of
106 employees from a Portuguese company. In general, results revealed a rather small impact
of attachment dimensions on developmental networks as most hypotheses were not supported.
The significant results revealed that individuals with high avoidance attachment tend to have
smaller and less diversified developmental networks receiving in general less developmental
support. We discuss the implications of our findings for both theory and practice.A teoria do apego tornou-se uma das abordagens teóricas mais influentes para estudar relacionamentos íntimos ao longo da vida. A influência desta teoria nos estudos organizacionais tem vindo a crescer exponencialmente e estudos anteriores têm focado primeiramente no impacto da teoria nas díades do local de trabalho, como as relações entre líder e seguidor e as relações de mentoria. Recentemente, alguns investigadores propuseram que é relevante estender a investigação a outras relações de desenvolvimento como colegas e até mesmo a redes de desenvolvimento inteiras. Assim, este estudo empírico aborda como a as dimensões da teoria do apego, ansiedade e evitação, impactam as redes de desenvolvimento, avaliando-as em termos de tamanho, diversidade e qualidade das relações, tanto para suporte de carreira quanto para suporte psicossocial. Os dados recolhidos para este estudo foram obtidos a partir de uma amostra de 106 colaboradores de uma empresa portuguesa. Em geral, os resultados revelaram pouco impacto das dimensões de apego nas redes de desenvolvimento, uma vez que a maioria das hipóteses não foram suportadas. Os resultados significativos revelaram que os indivíduos com alta evitação de apego tendem a ter redes de desenvolvimento menores e menos diversificadas, recebendo em geral menos apoio ao desenvolvimento. São discutidas as implicações dos resultados tanto para teoria quanto para prática.
43
鄭閔謙. "Formation of Social Networks by Random Triadic Attachment". Thesis, 2012. http://ndltd.ncl.edu.tw/handle/58170999370155097412.
Testo completoAbstract (sommario):
碩士國立清華大學
通訊工程研究所
100
In this paper we derive a network formation model for social network. First, we create a fully-connected network with m0 vertices. At each time step, a new vertex is added into the network, and randomly selects one existing vertex to establish an edge with equal probability. Then, each neighbors of attached vertex forms an edge with the new vertex with probability a. We call this operation triadic attachment. We derive the mean degree and the clustering coefficient for this model. We also analyze the stationary mean degree and the stationary clustering coefficient. Furthermore, we extend this model by adding edges to pairs of existing vertices. We derive the mean degree and the clustering coefficient for this extended model. Finally we show that the parameters of our model can be chosen such that the mean degree and the clustering coefficient match very well those of popular online social networks such as Facebook, Flickr and Orkut.
44
Cruz, Ana Patrícia Gomes da. "Application of broker-based mechanisms for end-node attachment in mobile networks". Master's thesis, 2020. http://hdl.handle.net/10773/29041.
Testo completoAbstract (sommario):
In recent years, mobile data traffic has been growing with the increase of equipments
connected to the network. Due to user demand, network operators have
to continuously upgrade their networks and keep the costs low. Nowadays, to do
this upgrade, the operator needs to acquire new equipment, leading to a very high
investment. 5G aims to provide more scalability and flexibility on the network.
For this, the 5G system architecture is built based on a cloud-native, which means
Service Based Architecture (SBA) in the core network. SBA aims to provide connectivity
with all access technologies, introducing more redundancy in the control
plane’s resiliency and operational efficiency. Additionaly, instead of using dedicated
interfaces between each pair of interacting core functions, they now communicate
through a Service-Based Interface (SBI), aiming for greater flexibility and simplicity.
The OpenAirInterface (OAI) is an open-source software platform that aims to
provide an approximation to the 3GPP standards of the 4G and 5G networks. This
thesis provides a study of the impact of the SBA in the control plane. For that,
we used an architecture that evolves the Evolved Packet Core (EPC) into a core
network close to 5G Core (5GC) by introducing a broker. The broker is integrated
between the modules in the control plane, wherein they have to order requests to
communicate with each other. The proposed architecture consists of integrating
the broker on the OAI platform, evaluating it, and comparing it with the original
EPC.Nos últimos anos, o tráfego de dados móveis tem vindo a crescer com o aumento de equipamentos ligados à rede. Devido à demanda do utilizador, os operadores de rede necessitam de atualizar continuamente a sua rede e manter os custos baixos. Atualmente, para essa atualização, o operador precisa de adquirir novos equipamentos, tendo um investimento muito elevado. O 5G via fornecer maior escalabilidade e flexibilidade na rede. Para isso, a arquitetura do sistema 5G é construída com base numa nuvem nativa, o que significa uma arquitetura baseada em serviços na rede “core”. Este tipo de arquitetura visa fornecer conectividade independentemente da tecnologia de acesso, introduzindo maior redundância na resiliência no plano de controlo e eficiência operacional. Adicionalmente, ao invés de interfaces dedicadas entre cada par de funções de rede “core” intervenientes, as mesmas comunicam através de uma interface baseada em serviços, com vista a uma maior flexibilidade e simplicidade. OpenAirInterface (OAI) é uma plataforma de software de código aberto que visa fornecer uma aproximação aos padrões 3GPP das redes 4G e 5G. Esta dissertação fornece um estudo do impacto de uma arquitetura baseada em serviços no plano de controlo. Para isso, utilizou-se uma arquitetura que evolui o Evolved Packet Core (EPC) para uma rede “core” próxima da 5G Core (5GC), introduzindo um broker. Um broker é integrado entre os módulos do plano de controlo, no qual estes para comunicarem entre si necessitam de realizar pedidos. A abordagem utilizada consiste na integração de um broker na plataforma OAI, avaliando o seu impacto comparando com o EPC original.
Mestrado em Engenharia de Computadores e Telemática
45
Wang, Shih-Twu, e 王仕圖. "The Research of Support Networks and Community Attachment in a n Growth Community". Thesis, 1993. http://ndltd.ncl.edu.tw/handle/38408368647899141842.
Testo completo
46
Wan, Phyllis. "Application of Distance Covariance to Extremes and Time Series and Inference for Linear Preferential Attachment Networks". Thesis, 2018. https://doi.org/10.7916/D8Q25GQB.
Testo completoAbstract (sommario):
This thesis covers four topics: i) Measuring dependence in time series through distance covariance; ii) Testing goodness-of-fit of time series models; iii) Threshold selection for multivariate heavy-tailed data; and iv) Inference for linear preferential attachment networks.
Topic i) studies a dependence measure based on characteristic functions, called distance covariance, in time series settings. Distance covariance recently gathered popularity for its ability to detect nonlinear dependence. In particular, we characterize a general family of such dependence measures and use them to measure lagged serial and cross dependence in stationary time series. Assuming strong mixing, we establish the relevant asymptotic theory for the sample auto- and cross- distance correlation functions.
Topic ii) proposes a goodness-of-fit test for general classes of time series model by applying the auto-distance covariance function (ADCV) to the fitted residuals. Under the correct model assumption, the limit distribution for the ADCV of the residuals differs from that of an i.i.d. sequence by a correction term. This adjustment has essentially the same form regardless of the model specification.
Topic iii) considers data in the multivariate regular varying setting where the radial part $R$ is asymptotically independent of the angular part $\Theta$ as $R$ goes to infinity. The goal is to estimate the limiting distribution of $\Theta$ given $R\to\infty$, which characterizes the tail dependence of the data. A typical strategy is to look at the angular components of the data for which the radial parts exceed some threshold. We propose an algorithm to select the threshold based on distance covariance statistics and a subsampling scheme.
Topic iv) investigates inference questions related to the linear preferential attachment model for network data. Preferential attachment is an appealing mechanism based on the intuition “the rich get richer” and produces the well-observed power-law behavior in net- works. We provide methods for fitting such a model under two data scenarios, when the network formation is given, and when only a single-time snapshot of the network is observed.
47
Castiglioni, Nicole Ayse. "Expectations of self, others, and control : a model of associations among adult attachment orientations, self concealment, externality, anxiety sensitivity, and perceived social support /". 2009. http://149.152.10.1/record=b3071693~S16.
Testo completoAbstract (sommario):
Thesis (M.A.) -- Central Connecticut State University, 2009.Thesis advisor: Rebecca Wood. "... in partial fulfillment of the requirements for the degree of Master of Arts in General Psychology." Includes bibliographical references (leaves 34-40). Abstract available via the World Wide Web.
48
Garcia, Filipa Maria Caldeira da Silva. "Vinculação e modelos internos dinâmicos : Da representação sensorio-motora à representação simbólica". Doctoral thesis, 2017. http://hdl.handle.net/10400.12/5766.
Testo completoAbstract (sommario):
Tese de Doutoramento em Psicologia na área de especialidade Psicologia do Desenvolvimento apresentada ao ISPA - Instituto UniversitárioO presente estudo, baseado na teoria da vinculação de Bowlby/Ainsworth, tem como objetivo geral analisar a continuidade da qualidade da vinculação nos anos préescolares e a sua relação com a qualidade de vinculação educador-criança. Primeiramente, analisámos as associações entre os comportamentos de base segura da criança com a mãe e da criança com o pai e as representações de vinculação nos anos pré-escolares, numa amostra de 71 díades mãe-criança e pai-criança, utilizámos como instrumentos o Attachment Behaviour Q-Set (AQS – versão 3.0 de Waters, 1995), ao Attachment Story Completion Task (ASCT, Bretherton & Ridgeway, 1990) e à Wechsler Preschool and Primary Scale of Intelligence - Revised (WPPSI-R, 1989; versão portuguesa de Seabra-Santos et al., 2003). Os resultados revelam que as crianças utilizam quer a mãe quer o pai como base segura e que a segurança de vinculação experienciada pela criança na infância é representada posteriormente em modelos internos dinâmicos seguros. Em segundo lugar, tentámos perceber quais os processos envolvidos na transição das representações sensoriomotoras para as simbólicas, analisando dois potenciais inputs para a construção, por parte da criança, das representações mentais de vinculação: as representações sensoriomotoras da criança dos primeiros anos de vida baseadas na organização dos seus comportamentos de base segura com o pai e com a mãe e os scripts de vinculação parentais, numa amostra de 64 díades mãe-criança e pai-criança, utilizando como instrumentos o AQS (versão 3.0 de Waters, 1995), o ASCT (Bretherton & Ridgeway, 1990), a WPPSI-R (versão portuguesa de Seabra-Santos et al., 2003) e o Attachment Script Assessment (ASA – Waters & Rodrigues-Doolabh, 2004, manual não publicado). Os resultados obtidos sugerem que a organização dos comportamentos de base segura, na relação com ambos os pais, pode ser prevista a partir do conhecimento tipo script de base segura das figuras parentais e que apenas as representações sensoriomotoras da criança dos primeiros anos de vida baseadas na organização dos seus comportamentos de base segura estão a funcionar como potenciais inputs das representações mentais de vinculação da criança, ao contrário do esperado. Finalmente, analisámos a relação entre a qualidade das representações internas de vinculação das crianças (ou seja, a segurança) e a qualidade das relações educador-criança, numa amostra de 52 crianças e 4 educadores. Utilizámos como instrumentos o ASCT (Bretherton & Ridgeway, 1990), a WPPSI-R (versão portuguesa de Seabra-Santos et al., 2003) e ainda, a Escala de Perceção dos Comportamentos de Vinculação para Professores (PCV-P, Dias, Soares e Freire, 2004). Os dados obtidos mostram que a coconstrução de uma relação de vinculação relevante com um educador na primeira infância é, em parte, função da qualidade da relação de vinculação da criança com as figuras parentais mas também do desenvolvimento verbal da criança. De uma forma geral, os nossos resultados procuram contribuir para a discussão em aberto sobre a construção, por parte da criança, de um modelo integrado do self, participando em duas ou mais relações qualitativamente distintas.
ABSTRACT: The present study, based on Bowlby/Ainsworth’s attachment theory, aims to study the continuity of quality of attachment in the preschool years, and its relation to kindergarten teacher-child attachment quality. Firstly, we examined the associations between infant-mother and infant-father secure base behaviours and attachment representation in preschooler years in a sample of 71 child-mother and child-father dyads, we used as instruments the Attachment Behaviour Q-Set (AQS – version 3.0, Waters, 1995), the Attachment Story Completion Task (ASCT, Bretherton & Ridgeway, 1990) and the Wechsler Preschool and Primary Scale of Intelligence - Revised (WPPSI-R, 1989; portuguese version of Seabra-Santos et al., 2003). Our results revealed that children were able to use both parents as secure base and those children with a secure attachment relation developed an internal working model of secure attachment. Secondly, we tried to understand the processes involved in the transition from sensorimotor to symbolic representations, analyzing two potential inputs for the construction of the child mental representations of secure base information: children’s own sensorimotor representations from earlier years based on their secure base behaviours with father and mother and their parents’ attachment scripts in a sample of 64 child-mother and child-father dyads. We used as instuments the AQS (version 3.0, Waters, 1995), the ASCT (Bretherton & Ridgeway, 1990), the WPPSI-R (1989; portuguese version of Seabra-Santos et al., 2003) and the Attachment Script Assessment (ASA – Waters & Rodrigues-Doolabh, 2004, unpublished manual). The results suggest that children’s secure base behaviours can be predicted from parents’s attachment scripts and that only children’s sensoriomotor representations based on their secure base behaviours were predicting child mental representations, contrary to our expectations. Finally, we analyzed the relation between children’s attachment representations and the quality of kindergarten teacher-child relationships, in a sample of 52 children and 4 kindergarten teachers. We used as instruments the ASCT (Bretherton & Ridgeway, 1990), the WPPSI-R (portuguese version of Seabra-Santos et al., 2003) and the Teachers’ ratings of child secure base behavior and emotion regulation (PCV-P, Dias, Soares e Freire, 2004). Our data suggest that co-construction of a close attachment-relevant relationship with a kindergarten teacher in early childhood is, in part, a function of the quality of parent-child attachment relationships, but also of child verbal development. In general, our results contribute to the ongoing discussion about the child’s construction of an integrated model of attachment relations, participating in two or more qualitatively distinct relationships.
49
Oliveira, Carolina Inês Adães de Sá Gomes. "Relação entre adição ao Facebook, padrões de uso das redes sociais e a vinculação em adultos emergentes". Master's thesis, 2020. http://hdl.handle.net/10400.14/33038.
Testo completoAbstract (sommario):
Introdução: Ao longo dos anos tem-se assistido a mudanças profundas no mundo em
termos demográficos e no modo como nos relacionamos com os demais. As redes sociais online
parecem ser substitutas de necessidades humanas fundamentais, como as necessidades de
vinculação. A vinculação encontra-se associada ao uso do Facebook, sendo a ansiosa preditor
deste uso. Apesar de o Facebook ser a rede social mais utilizada em Portugal, não há registos
de estudos no contexto português. Objetivos: Explorar a relação entre a adição ao Facebook e
os tipos de vinculação no geral, com foco também em variáveis sociodemográficas, académicas
e de uso da Internet e das redes sociais. Amostra: A amostra foi constituída por 348 sujeitos
Portugueses com idades compreendidas entre os 19 e os 29 anos, que preencheram um
questionário sociodemográfico, académico, do uso da Internet e do uso do Facebook; a Escala
de Adição ao Facebook e o Experiences in Close Relationships–Relationship Structures
Questionnaire. Resultados: Os padrões de vinculação insegura encontram-se correlacionados
com as publicações nas redes sociais, contudo não se associaram com a adição ao Facebook. O
Facebook é uma rede social omnipresente, mas que apresentou menores níveis de adição,
verificando-se o uso de outras redes sociais pelos sujeitos mais jovens. As publicações nas redes
não se encontram associadas à vinculação segura. Conclusão: A vinculação é um fator
importante para entender o comportamento relativo ao uso de redes sociais.Introduction: Over the years there have been profound changes in the world in terms of demographics and the way we relate to others. On-line social network seems to be a substitute for the gratification of very significant human needs, such as the fundamental attachment requirements. The attachment is associated with the use of Facebook, being anxious a predictor of Facebook use. Although Facebook is a most used social network site in Portugal, there are no records of studies with these variables in the Portuguese context. Objective: Explore the relationship between a Facebook addiction and attachment styles in general, with focus on sociodemographic, academic, and Internet and social networking issues. Sample: The sample was composed by 348 subjects in the Portuguese context between the ages of 19 and 29 years. The instruments use were a socio-demographic, academic, the use of Internet and the use of Facebook questionnaire; the Bergen Facebook Addiction Scale and the Experiences in Close Relationships-Relationship Structures Questionnaire. Results: Insecure attachment styles are correlated with publications on social networks, however they were not associated with the addition to Facebook. Facebook is an omnipresent social network, but it showed lower scores in addition, noticing the use of other social networks by the younger subjects. Publications on networks are not associated with secure attachment. Conclusion: Attachment is an important factor in understanding the on-line behaviors regarding social networks.
50
Garnett, Gabriella. "Experiences of emergent change from an applied neurosciences perspective". Diss., 2019. http://hdl.handle.net/10500/26623.
Testo completoAbstract (sommario):
Emergent change is a pervasive force in modern organisations. However, the subjective experiences of emergent change for frontline individuals and teams have not been explored in organisational change literature. The integrative field of applied neurosciences offers valuable insights into the underlying neural mechanisms that shape these experiences and drive responses in order to meet basic psychological needs. Using interactive qualitative analysis (IQA), this study involved a focus group and follow-up interviews with nine participants at a South African software development company to explore the experiences of emergent change at work. System dynamics reflected that these experiences are significantly more complex than literature and practice currently account for, and that individuals and teams find their experiences of emergent change to threaten their sense of safety and basic psychological needs. The physiological and emotional experiences were found to be driving elements. Peak performance state and the relational environment were found to be salient outcomes. Findings present the opportunity for the reconceptualisation of emergent change, a shift in focus from change itself to the human experiences thereof and the importance of embracing new possibilities, tools and practices for meeting needs and thriving in an ever-changing world.Industrial and Organisational Psychology
M. Com. (Industrial and Organisational Psychology)