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101.
Meghan?L.?AvolioEmail author Diane?E.?Pataki Stephanie?Pincetl Thomas?W.?Gillespie G.?Darrel?Jenerette Heather?R.?McCarthy 《Urban Ecosystems》2015,18(1):73-86
Urban plant biodiversity is influenced by both the physical environment and attitudes and preferences of urban residents for specific plant types. Urban residents are assumed to be disconnected from their immediate environment, and cultural and societal factors have been emphasized over environmental factors in studies of landscaping choices. However, we postulate that local climatic and environmental factors can also affect preferences for plant attributes. Therefore, spatial and temporal patterns in urban tree biodiversity may be driven not only by the direct effect of environmental variables on plant function, but also by the effect of environmental variables on attitudes toward trees and associated choices about which types of trees to plant. Here, we tested the relative effects of socio-economic and local environmental factors on preferences toward tree attributes in five counties in southern California in and surrounding Los Angeles, based on 1,029 household surveys. We found that local environmental factors have as strong an effect on preferences for tree attributes as socio-economic factors. Specifically, people located in hotter climates (average maximum temperature 25.1 °C) were more likely to value shade trees than those located in cooler regions (23.1 °C). Additionally, people located in desert areas were less likely to consider trees to be important in their city compared with people located in naturally forested areas. Overall, our research demonstrates the inherent connections between local environmental factors and perceptions of nature, even in large modern cities. Accounting for these factors can contribute to the growing interest in understanding patterns of urban biodiversity. 相似文献
102.
The logic of preference reconsidered 总被引:4,自引:0,他引:4
G. H. Von Wright 《Theory and Decision》1972,3(2):140-169
Preferences are an important object of study in economic theory. Their logico-mathematical study has become prominent with the raise of modern decision theory and with the new conceptions of utility-functions and personalistic probabilities. The ‘basic logic’ at the foundation of the more advanced theories of preference, however, has been relatively little investigated. The pioneer work is Hallden's The Logic of ‘Better’ of the year 1957, followed by von Wright's The Logic of Preference in 1963. The topic has turned out unexpectedly problematic and there is as yet little consensus among logicians about the basic laws of preferring. A reason for this is apparently that there exist several concepts of preference which must be disentangled and kept apart in a logical theory. How this is to be done is discussed in the introductory sections (1–5) of the present paper. In Section 8 is sketched a logic for an asymmetric and connected preference-relation which holds between ‘possible worlds’ within a subject's ‘preference-horizon’ (Section 7). Preferences between states of affairs generally are called holistic when they hold ceteris paribus, i.e., when there is a corresponding preference-relation between any pairs of possible worlds which differ only in those two states and in no others. (Section 6.) Holistic preferences between states are asymmetrical and transitive but they do not form a linear preference order. (Section 9.) Failure to notice this, the author maintains, is responsible for much confusion in the traditional treatment of the subject. In the concluding sections (10–12) the author discusses the mutual relations of the value-absolutes, the good and the bad. Can they be defined in the terms of the relative notion of betterness or preference (and logical constants) alone? The definition which says that the goodness of a state is the holistic preference of it over its contradictory, answers the question affirmatively but conflicts with several deep-rooted axiological intuitions of ours. A more satisfying definition of the value-absolutes requires the additional notion of a value-less state (world) with which all the other states may be compared. In this connection some ideas of G. E. Moore about the notion of an ‘empty’ world can be interestingly exploited. 相似文献
103.
Fay Wright 《Social Policy & Administration》2004,38(5):488-503
Research, funded by the British Gas Help the Aged Partnership and carried out by the Institute of Gerontology, King's College London, explored the multidimensional issues of fuel poverty. A sample of older homeowners and private renters living in England, Scotland and Wales were interviewed in the Spring of 2003 to explore their experiences of keeping their homes warm in the preceding winter. It was found that almost half of the sample for whom full information was available were in fuel poverty. Government schemes failed to address some important issues. Grants were only available to those with “passport benefits”, excluding those who had minimal occupational pensions. Although most respondents had central heating, it was often old and ineffective, yet grants were not available to modernize them. Government schemes did not extend to paying for external and internal insulation for solid wall properties yet many older people live in such property. Several older people lived in rural areas not connected to mains gas. As mains gas currently provides the cheapest fuel, they faced high bills, yet government policies do not address the differential fuel costs in these areas. The culture of many older people in the study contributed to their living in cold homes. They lived frugally and usually turned heating off in daylight hours during winter. It was also a common practice to sleep in an unheated bedroom during winter and to keep the window open at night. Such practices are acknowledged to be unhealthy. 相似文献
104.
Information-seeking during acquaintanceship: Effects of level of social understanding and personal relevance 总被引:1,自引:0,他引:1
Two studies examined how individual differences in social understanding influence children's information-seeking orientations during an initial meeting with a peer, in which they do or do not anticipate future interaction. Study 1 involved a relatively controlled, laboratory setting in which 7-9 year old children were presented a list of questions from which to choose what to ask the peer. The findings indicate that children who view a person's behavior in terms of stable dispositional characteristics (high SDC), express greater interest in gathering trait-related information about an unfamiliar peer than children who do not perceive people in terms of stable traits (low SDC), but only when they expect to play games with that peer in a future interaction. Study 2 involved a more naturalistic observation of the actual questions 7-9 year old children ask during an initial meeting with an unfamiliar peer. The findings showed that high SDC children asked more questions of the peer when they expected interaction than when they did not, whereas low SDC children did not differ significantly across conditions. Taken together, the two studies indicate that the future, predictability orientation of high SDC children leads to a more extensive information search about a peer when they expect interaction with that peer involving instrumental choices. 相似文献
105.
106.
Deena Mandell Carol Stalker Margriet de Zeeuw Wright Karen Frensch Cheryl Harvey 《Child & Family Social Work》2013,18(4):383-393
The authors conducted a mixed‐method study after a previous study of child welfare employees revealed a subgroup exhibiting surprisingly high levels of both emotional exhaustion (EE) and job satisfaction (JS). This subgroup included direct service workers, supervisors and managers. As these findings appeared to conflict with previous studies, we re‐reviewed the literature and undertook the current study to account for the co‐existence of EE and JS. We explored and compared this subgroup with two others: workers who found their work satisfying without experiencing high levels of EE and those whose high levels of EE were associated with low JS. Using a survey that included several standardized measures with 226 employees and semi‐structured interviews with a criteria‐based subsample of 25, we explored the role that personality, career expectations, coping styles, stage of life, education, gender and social networks play in outcomes for individual employees. Analyses of quantitative and qualitative data yielded a profile for each subgroup, offering insights into the subjective experiences of workers within individual, social and organizational contexts. These findings have implications for recruitment, training and support of child welfare workers. 相似文献
107.
Colin Sumner has declared that the sociology of deviance as a research specialty was “dead? by 1975; later influential studies on norm-violating behavior appeared only in the specific area of criminology. We subjected this argument to empirical test through an analysis of the most-cited scholars and works in 263 textbooks, articles, and research notes appearing in the sociology of deviance from 1993 to 1999. We found some support for Sumner's claims: The majority of the most-cited scholars in devi-ance today conduct research in other areas, primarily in criminology. Furthermore, among the 31 most-cited works in our analysis, only two of 15 studies classified in the sociology of deviance appeared after 1975. We conclude with some thoughts about the factors that contribute to the rise and fall of research specializations in sociology. 相似文献
108.
CONVERGENCE AND PREDICTION OF PRINCIPAL COMPONENT SCORES IN HIGH-DIMENSIONAL SETTINGS 总被引:1,自引:0,他引:1
A number of settings arise in which it is of interest to predict Principal Component (PC) scores for new observations using data from an initial sample. In this paper, we demonstrate that naive approaches to PC score prediction can be substantially biased towards 0 in the analysis of large matrices. This phenomenon is largely related to known inconsistency results for sample eigenvalues and eigenvectors as both dimensions of the matrix increase. For the spiked eigenvalue model for random matrices, we expand the generality of these results, and propose bias-adjusted PC score prediction. In addition, we compute the asymptotic correlation coefficient between PC scores from sample and population eigenvectors. Simulation and real data examples from the genetics literature show the improved bias and numerical properties of our estimators. 相似文献
109.
Diane Ehrensaft Ph.D. 《Studies in Gender and Sexuality》2013,14(3):269-302
An increasing number of children are expressing themselves in gender-expansive or gender-variant ways. A subgroup of those children are girlyboys: boys who accept themselves as boys but cross culturally defined gender lines in their attitudes, behaviors, and desires. Using clinical material, written accounts, and personal observations, this paper investigates the experience of parents raising these boys. Facilitative parenting is differentiated from obstructive parenting within the rubric that gender-fluid outcome is healthy and parents can have influence in this arena. The experience of parents with their girlyboys is also offered as a window through which to view a young boy's protogay development. Analysis is made of the ways in which the psychoanalytic lens has traditionally blurred or distorted our thinking about parents' roles in gender-variant children's development. An alternative view of parenting, informed by the work of post-modern psychoanalytic gender theorists, is proffered, with an end to reinforcing healthy gender-fluid development. 相似文献
110.