Search results

I evaluate the accuracy with which respondents report egocentered network data. I find that 72% of the time ego’s assessment of the tie between a pair of alters corresponded with both alters’ report of the tie between themselves, and 87% of the time, ego’s report of the tie between a pair of alters is in agreement with at least one of the alters. I discuss the implications of the findings for the debate over the merits of egocentered network data.

This paper aims to elucidate the geochemical characteristics of the hydrothermally altered rocks with gold mineralization and the elemental transfers in hydrothermal alteration hosted in alkaline complex in Hongshan area, Taihang Orogen, North China, and preliminarily discuss the relationship between the gold mineralization and the hydrothermal alteration.

Based on detailed field investigation, sampling and petrographical observation, major oxides and trace elements of nine rock samples are analyzed, and the method of mass balance equation is used in calculation of the elemental transfer.

Three alteration stages in the Hongshan area are identified, which are the early, main and late alterations. The early one is characteristic of extensive pyritization in the complex, which is related to the mantle-derived magmas and occurs before gold mineralization. The main one is characterized by developing a great deal of altered rock in fracture zones with the gain of many elements and the loss of a few elements. The late one is dominated by limonitization, that is limonite replacing the early pyrite or Fe₂O₃ replacing FeO in rocks. In the main alteration, the altered rocks obviously gain fluid component (LOI, i.e. loss on ignition) and elements such as V, As, Rb, Au, La, Ce and Nd and total rare earth elements (REEs). Elements such as K, Fe, Cu, Zn, Y, Mo, Sb, W, Re and U are gained in some altered rocks. Na and Sr are lost in all altered rocks, and Th and Bi are lost in some ones in the meantime. The following elements: Si, Mg, Mn, Ca, Li, Sc, Cr, Co, Ni, Zr, Ag, Ba and Hg show either gain or loss in different altered rocks. Au is notably enriched in the hydrothermal alteration. The elemental gain or loss in the altered rocks indicates that the main mineralization develops extensive de-alkalinization, local potassic metasomatism, silicification or desilicification.

By adding an alter perspective to the traditional ego perspective on gender differences in entrepreneurial networks, the purpose of this study is to investigate whether involvement of family members who are not partners and exchange of emotional support is associated not only with the gender of the entrepreneurs but also the gender of entrepreneurs' alters.

Building on homophily theory, relational theory and social support theory, three hypotheses are developed and tested on a representative sample of Danish entrepreneurs and their alters. A hierarchical logistic regression approach is applied.

It is found that female focal entrepreneurs are more likely to involve female and family members who are not partners. Furthermore, it was found that female focal entrepreneurs would more likely involve female family members while male focal entrepreneurs would more likely involve male family members. And finally, it was found that females and males are equally likely to receive emotional support while females are more likely to provide it.

An important lesson from this study is that both focal actors and alters have an essential role in the entrepreneurial act and that females and males perform different roles and functions as both the focal entrepreneurs and as alters.

This study is unique in the sense that it adds an alter perspective to the traditional ego perspective on entrepreneurial networks.

In this chapter, we focus on the social integration of young immigrants in Sweden who themselves and/or one or both of their parents came from Iran or former Yugoslavia. In particular, we look at the share of alters in their core networks who are of the same parental national origin and how this has changed within a period of four years. To explain network changes, we consider the parental national origin similarity among them, changes in opportunities to meet network members, and important life events.

We analyzed two waves of survey data collected in 2010 and 2014 from 1,537 individuals who live in Sweden and who were all born in 1990, including 325 immigrants from Iran, 447 immigrants from former Yugoslavia, and 805 native Swedes. The results indicate that: (a) the share of parental national origin similar alters in the core networks of immigrants significantly increases over time, (b) first-generation immigrants in particular increasingly associate with others who are of the same parental national origin, (c) important life events hardly result in network changes, and (d) schools and work places are social contexts that enhance the social integration of immigrants, because in these contexts immigrants meet and engage in personal relationships with individuals who do not share their parental national origin.

We argue for a broadened approach to brokerage by distinguishing between brokerage emphasizing a particular structural pattern in which two otherwise disconnected alters are connected through a third party (“brokerage structure”) and the social behavior of third parties (“brokerage process”). We explore a processual view of brokerage by examining three fundamental strategic orientations toward brokerage: conduit, tertius gaudens, and tertius iungens that occur in many different forms and combinations. This processual view is especially relevant in increasingly complex and dynamic environments where brokerage behavior is highly varied, intense, and purposeful, and has theoretical implications for studying multiplexity, heterogeneity, and brokerage intensity.

We construct a theory of team collaboration to explain how social actors activate their network ties to gain access to and acquire the use of social capital held by other network actors. Drawing from weak-strong tie theory and closure-brokerage models of network structures, our theory specifies dynamic processes in which relations vary in their potential for activation, and thus, project teams have differential probabilities of mobilizing and gaining collective use of the varied resources held by their network alters inside and outside the team. The theoretical scope is interorganizational team whose members are employed by two partnering organizations and are assigned to a joint project with a single task or goal to be accomplished within a limited period. We present and discuss a set of propositions about factors that affect the ability of a team to access its members’ social capital for use in a project task.

The purpose of this study is to assess factors related to sorority women connecting with people who exacerbate feelings of exercise guilt and body dissatisfaction (BD), both of which preclude compulsive exercise.

In all, 207 sorority women (egos) completed online surveys measuring physical activity, BD, compulsive exercise and egocentric networks (n = 1,105 social ties/alters). Two random coefficient multilevel models assessed factors related to an ego connecting to someone who makes her feel: guilty about her exercise habits and good about her looks.

Exercise patterns within networks related to how often an alter made ego feel guilty about her exercise habits; alter gender and communication frequency related to how often an alter made ego feel good about her looks; and ego’s BD score was related to both feelings of guilt and body satisfaction.

The findings of this study support and extend literature highlighting the importance of someone’s immediate social network on their body image and related behaviors.

In a study of conflict in organizations, Lindenberg’s relational signaling theory is used to develop hypotheses on the impact of relationship strength, network embeddedness, and organizational change on social escalation. Social escalation is defined as the involvement of one or more third parties in a conflict. An empirical test is conducted with data on 67 conflicts involving 22 managers, gathered during three years of ethnographic fieldwork and a longitudinal network study in a management team of a German paper factory. Multilevel analysis indicates that strong ties between conflicting parties decrease the level of social escalation, whereas informal power advantage of one party increases the chances for social escalation. Both effects disappear over time. It is argued that the dissolving impact of relationships and networks is due to the disappearance of so-called solidarity frame-stabilizing activities in the firm. The results highlight the context-dependence of network effects and escalation processes.

Drawing on appraisal theories, this paper aims to attempt to demonstrate how augmented reality (AR) strengthens relationships in the cognitive-affective-conative mechanism to shape visitors' recommendation of awe-inspiring heritage experiences.

A mixed-method approach was undertaken. First, an exploratory pre-study (n = 98) analyzed the multidimensionality of awe appraisals, eliciting the most salient dimensions in tourism experiences for informing the main study. Subsequently, an on-site survey was used to examine the relationships in the cognitive-affective-conative sequence, based on 316 questionnaires collected at a highly acclaimed religious heritage equipped with a multisensory AR activity.

Two distinct appraisals underlined in the awe concept were elicited during the exploratory phase: altered emotions (aggregating positive self-transformative dimensions) and the need for accommodation. The survey results demonstrated that the influence of authenticity on recommendation is shaped by emotions. Altered emotions hold a central mediating role and are differentiated from other discrete emotions. AR and the need for accommodation are revealed as contingencies that regulate the mediated mechanism.

This paper provides the hospitality and tourism stakeholders with a better understanding of how immersive technologies can be used for boosting recommendations, by enhancing the emotional responses toward authenticity perceptions.

This study introduces a novel conceptual framework to broaden our understanding of how cognitive and affective mental processes are linked to visitors’ recommendations, and how AR amplifies the outcomes. To the best of the authors’ knowledge, it is the first research to distinguish and document the specific effects of two different types of awe appraisal.

This is the first part of a two‐part paper that considers the assessment criteria for incapacity benefit (IB) and employment and support allowance (ESA) and how these benefits apply to claimants who are unable to work because they experience episodes of lost or altered consciousness.Part one considers how the IB/ESA appraisal system works in practice and looks specifically at the legal interpretation of lost and altered consciousness. Part two, which will be published in a future issue, will give practical guidance to advisers.