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941.
Jochen Klenk Lars Schwickert Luca Palmerini Sabato Mellone Alan Bourke Espen A. F. Ihlen Ngaire Kerse Klaus Hauer Mirjam Pijnappels Matthis Synofzik Karin Srulijes Walter Maetzler Jorunn L. Helbostad Wiebren Zijlstra Kamiar Aminian Christopher Todd Lorenzo Chiari Clemens Becker for the FARSEEING Consortium 《European review of aging and physical activity》2016,13(1):8
Background
Real-world fall events objectively measured by body-worn sensors can improve the understanding of fall events in older people. However, these events are rare and hence challenging to capture. Therefore, the FARSEEING (FAll Repository for the design of Smart and sElf-adaptive Environments prolonging Independent livinG) consortium and associated partners started to build up a meta-database of real-world falls.Results
Between January 2012 and December 2015 more than 300 real-world fall events have been recorded. This is currently the largest collection of real-world fall data recorded with inertial sensors. A signal processing and fall verification procedure has been developed and applied to the data. Since the end of 2015, 208 verified real-world fall events are available for analyses. The fall events have been recorded within several studies, with different methods, and in different populations. All sensor signals include at least accelerometer measurements and 58 % additionally include gyroscope and magnetometer measurements. The collection of data is ongoing and open to further partners contributing with fall signals. The FARSEEING consortium also aims to share the collected real-world falls data with other researchers on request.Conclusions
The FARSEEING meta-database will help to improve the understanding of falls and enable new approaches in fall risk assessment, fall prevention, and fall detection in both aging and disease.942.
Alexandra Nonnenmacher Tim Spier 《KZfSS K?lner Zeitschrift für Soziologie und Sozialpsychologie》2014,66(1):369-393
In this paper, we aim to test Olson’s (The logic of collective action: Public goods and the theory of groups, Cambridge, Harvard University Press, 1965) assumptions of group size effects on free-riding tendencies in political parties. Multilevel analyses of the Deutsche Parteimitgliederstudie (German Party Membership Study) 2009 reveal that for members of the CDU, CSU, SPD, FDP and Bündnis 90/Die Grünen, the assumed negative relationship between the number of party members in the district association and their individual level of activity can only be shown for the eastern states of Germany. Moreover, we show that selective incentives are not suitable for reducing the negative impact of a increasing membership figure, while normative incentives are associated with an increasing free-riding tendency with increasing number of members in the western and eastern Bundesländer. Our results only partly support the assumptions on collective action problems and point to a need for further theoretical and empirical research on group size effects and on the role incentives’ play in explaining the activity in political parties. 相似文献
943.
Oliver Arránz Becker Daniel Lois Anja Steinbach 《KZfSS K?lner Zeitschrift für Soziologie und Sozialpsychologie》2014,66(1):417-444
The present contribution shows conceptual and methodological approaches for the study of social context effects within families. Family members mutually constitute the social context in which family behavior and personality development take place. Social influence in families becomes evident empirically in family members’ significant similarity concerning a wide variety of characteristics. The present study focuses on intrafamily convergence with regard to religiousness. In an empirical illustration, both (a) horizontal intracouple alignment and (b) vertical intergenerational transmission processes are examined. Besides the finding that experiences during religious socialization in the parental home have a stronger impact than partner influences in adulthood, our analyses show that social context effects are more pronounced the stronger the cohesion of the respective interaction dyad is (e.g., according to measures of relationship quality). 相似文献
944.
945.
Alessandro Lomi Christoph Stadtfeld 《KZfSS K?lner Zeitschrift für Soziologie und Sozialpsychologie》2014,66(1):395-415
One way to think about social context is as a sample of alters. To understand individual action, therefore, it matters greatly where these alters may be coming from, and how they are connected. According to one vision, connections among alters induce local dependencies—emergent rules of social interaction that generate endogenously the observed network structure of social settings. Social selection is the decision of interest in this perspective. According to a second vision, social settings are collections of social foci—physical or symbolic locales where actors meet. Because alters are more likely to be drawn from focused sets, shared social foci are frequently considered as the main generators of network ties, and hence of setting structure. Affiliation to social foci is the decision of central interest in this second view. In this paper we show how stochastic actor–oriented models (SAOMs) originally derived for studying the dynamics of multiple networks may be adopted to represent and examine these interconnected systems of decisions (selection and affiliation) within a unified analytical framework. We illustrate the empirical value of the model in the context of a longitudinal sample of adolescent participating in the Glasgow Teenage Friends and Lifestyle Study. Social selection decisions are examined in the context of networks of friendship relations. The analysis treats musical genres as the main social foci of interest. 相似文献
946.
Melissa A. Lewis Dana M. Litt Jessica M. Cronce Jessica A. Blayney Amanda K. Gilmore 《Journal of sex research》2014,51(1):86-96
Individuals who engage in risky sexual behavior face the possibility of experiencing negative consequences. One tenet of social learning theory is that individuals engage in behaviors partly based on observations or perceptions of others’ engagement in those behaviors. The present study aimed to document these norms–behavior relationships for both risky and protective sexual behaviors, including alcohol-related sexual behavior. Gender was also examined as a possible moderator of the norms–behavior relationship. Undergraduate students (n = 759; 58.0% female) completed a Web-based survey, including various measures of drinking and sexual behavior. Results indicated that students underestimate sexual health-protective behaviors (e.g., condom use and birth control use) and overestimate the risky behaviors (e.g., frequency of drinking prior to sex, typical number of drinks prior to sex, and frequency of casual sex) of their same-sex peers. All norms were positively associated with behavior, with the exception of condom use. Furthermore, no gender differences were found when examining the relationship between normative perceptions and behavior. The present study adds to the existing literature on normative misperceptions as it indicates that college students overestimate risky sexual behavior while underestimating sexual health-protective behaviors. Implications for interventions using the social norm approach and future directions are discussed. 相似文献
947.
Mel Pollner regularly cautioned researchers not to argue with the members of settings under consideration. He warned against
substituting the researcher’s meaning for the meanings of those being studied. This article discusses facets of the caution
as they relate to the research process. Seemingly simple, the tenet is nuanced in application. The article adds to the nuance
by distinguishing what is called the “replacement” of meaning with the “displacement” of meaning, providing a way of understanding
what members could mean if the contexts and settings of their accounts were taken into consideration. 相似文献
948.
Jason M. Fletcher 《Journal of Labor Research》2012,33(1):49-75
In this paper, we use a longitudinal survey that has collected information for 50 years on a large cohort of Wisconsin high
school graduates and their siblings to examine the long term impact of early occupational choice on health status. We find
evidence that beginning a career in a blue collar occupation is correlated with several measures of poor health outcomes at
ages 50–65. Since our dataset includes usually unobserved pre-labor market characteristics, including IQ and childhood health
status, we can show that controlling for these variables is important for many results and suggests a high level of selection
into occupation based on health and ability. We also provide evidence of gender differentials in the association between first
occupation and later health. Then, we replace our basic measure of occupational categories with summary measures of job characteristics
and find that employment at “bad jobs” at the beginning of an individual’s career predicts later health outcomes. Finally,
we use sibling information in the dataset to show that unmeasured family background factors explain a large share of the effects
of occupation on later health. Overall, the evidence points to limited, though heterogeneous, long term effects of health
from blue collar employment. 相似文献
949.
Kandice Kapinos 《Journal of Labor Research》2012,33(1):91-103
In light of the recent concerns regarding the solvency of Social Security’s Old-Age, Survivors and Disability Insurance (OASDI),
private pensions may play an increasingly important role in retirement welfare of US retirees. However, the private pension
landscape has evolved in ways that may result in lower private pension wealth for retirees. One recent such phenomenon involves
the conversion of traditional defined benefit pension plans to cash balance plans, which results in lower pension benefits
for many workers. In this study, I investigated how characteristics of the firm’s workforce influenced whether the firm converted
their traditional pension plan to a cash balance plan and how these characteristics related to the firm’s pension plan policy
more generally. Using the Longitudinal Employer-Household Data and pension plan data from the Department of Labor/Internal
Revenue Service and the Pension Benefit Guaranty Corporation, I found little evidence of workforce age distribution effects
on the likelihood of DB plan conversion to a cash balance plan in the 1990s. More generally, I consistently found positive
associations between firms with older and more female workforces and defined contribution plans during the same time. 相似文献
950.
Elizabeth Popp Berman 《Theory and Society》2012,41(3):261-299
Organizational institutionalism has shown how institutional entrepreneurs can introduce new logics into fields and push for
their broader acceptance. In academic science in the United States, however, market logic gained strength without such an
entrepreneurial project. This article proposes an alternative “practice selection” model to explain how a new institutional
logic can gain strength when local innovations interact with changes outside the field. Actors within a field are always experimenting
with practices grounded in a variety of logics. When one logic is dominant, innovations based on alternative logics may have
trouble gaining the resources they need to become more broadly institutionalized. But if a changing environment starts systematically
to favor practices based on an alternative logic, that logic can become stronger even in the absence of a coherent project
to promote it. This is what happened in US academic science, as growing political concern with the economic impact of innovation
changed the field’s environment in ways that encouraged the spread of local market-logic practices. 相似文献