Influence of substrate depth and vegetation type on temperature and water runoff mitigation by extensive green roofs: shrubs versus herbaceous plants

The relative contribution of substrate depth and vegetation type on temperature mitigation and stormwater runoff reduction was studied in an experimental green roof in North eastern Italy. Two substrate depths (120 and 200?mm) and two vegetation types (herbaceous plants and shrubs, respectively) were used, and compared to control modules with similar substrate depths but left bare of vegetation. Experimental observations showed that: a) green roofs substantially reduce thermal load over the rooftop, with significant effects of substrate depth and no apparent impact of vegetation type; b) thermal effects are strongly influenced by substrate water content; c) green roofs strongly reduce water runoff with significant substrate x vegetation effects. Our data suggest that green roof design addressed to optimization of the thermal functions should take into account adequate planning of substrate depth. Moreover, our data show that vegetated modules out-competed medium-only ones in terms of runoff reduction capacity, in accordance with some previous studies. Both shrub-vegetated and herbaceous modules intercepted and stored more than 90% rainfall during intense precipitation events, with no significant difference between the two vegetation types despite different substrate depths.     

Methodological Choices and Data Quality Issues for Official Poverty Measures: Evidences from Italy

Social Indicators Research - The application of new technologies and the implementation of e-government have profoundly modified management systems in public administrations. In this article we...     

The Role of Domain Content in Understanding Identity Development Processes

The current studies examined the importance of domain content in the processes of identity development using two approaches—narrative and status. We examined personal narratives for identity domain content, the co‐occurrence of different contents, and the relations between content and processes, using two approaches to identity—status and narrative. Across two studies, 762 participants (average age = 19 years) and 2214 narratives, traditional ideological and interpersonal status domains were present, but so was a novel domain: existential concerns. Narrative identity processes were more frequent in narratives with multiple contents, and relations between identity statuses processes and narrative processes were modest. We discuss theoretical implications, the importance of examining content, and the utility of narrative approaches for doing so.     

Consensus on Culture in American Sociology: Reply to Smith

In his contribution to this issue, Smith argues that sociology’s house of culture is built on a foundation of sand. In my brief response to Smith, I dispute the claim that culture is in trouble and question the methods and motives behind Smith’s critique. I then indicate the common ground characterizing the work of contemporary culture scholars. Drawing upon my fieldnotes and observations of culture in action, I define culture as a suprasubjective system of signification creating intersubjective senses or ideas that are distinct from the materiality, function, immediacy, or face value of any particular people, objects, words, thoughts, and actions. I argue that this culture concept, which I see as theoretically consistent with the work of most cultural sociologists and sociologists of culture, satisfies many of Smith’s requirement that an acceptable culture concept specify culture’s location, powers, limits, and relationship to subjectivity, and clearly theorize meaning and its relationship to culture.     

Societal Norms Rather Than Sexual Orientation Influence Kin Altruism and Avuncularity in Tribal Urak-Lawoi,Italian, and Spanish Adult Males

Homosexual males could balance their low fitness by increasing benefits to relatives either through kin-directed altruism or by avuncularity (altruistic behavior toward the children of siblings). Evidence in support of kin selection and avuncularity includes the fact that homosexuals seem to be more empathic and altruistic than heterosexuals. Other studies have not confirmed behaviors that increase kin altruism in homosexuals. We explored altruistic behavior and avuncularity in a sample of 278 subjects, either homosexual or heterosexual, from three populations: Italian, Spanish, and Urak-Lawoi, a Southeast Asian tribal population. Among the Urak-Lawoi, the kathoeys, androphilic men who dress and behave as women, were compared with heterosexuals. All populations were rated for societal norms on the expression of affiliative behavior. No greater kin altruism or avuncularity among the kathoeys or in homosexuals in either Mediterranean population was found. Greater avuncularity and kin-directed altruism, independent of sexual orientation, were found among the Urak-Lawoi, and these traits were the least prevalent among the Italians, corresponding to different societal norms. The increase in kin altruism and avuncularity was associated in all males with societal differences and norms on general altruism toward nonkin children, suggesting it is not an adaptive design to maintain homosexuality in humans.     

Humanitarian Interorganizational Information Exchange Network: How Do Clique Structures Impact Network Effectiveness?

Humanitarian information coordination and sharing continue to challenge the international community. Interorganizational networks are believed to be a way to improve coordination and collaboration among humanitarian organizations. Although researchers have devoted a considerable amount of time exploring the influence of network structure on network performance and effectiveness, little work has been done in the humanitarian relief field. We use the theoretical lens of social network to investigate the relationship between network cliques and network effectiveness. Data were collected through multiple sources among members of GlobalSympoNet, a community of humanitarian organizations engaged in humanitarian information management and exchange. Our findings suggest that, similar to the public health service delivery sector, network effectiveness can be explained by network integration and network cliques in the humanitarian relief field. We discuss these findings and provide some implications of our research in designing interorganizational networks within the humanitarian relief field.     

Symbolic Interactions and the Development of Women Leaders in Higher Education

The under‐representation of women in higher education (HE) leadership is a persistent global phenomenon. The purpose of this research is to re‐examine this issue through symbolic interactionism (SI). Eight women aspiring to leadership were invited to participate in semi‐structured interviews after attending a leadership programme specifically designed to enhance their leadership prospects. Analysis indicated ambiguities and contradictions that surround notions of leadership, in particular how the participants position themselves and are positioned in their workplace. This was evidenced by the meaning they attributed to: recognizing a leader; interactions with existing leadership; and speculation regarding their leadership capacity. Gendered notions were apparent in their constructed meanings. Similarity attraction was also evident, with men being observed as ‘paying it forward’, therefore facilitating promotion. Formal leadership training was advocated rather than experiential processes.     

Working With Parents of Gender-Variant Children: Using Social Action as an Emancipatory Research Framework

This article examines and reflects on the methodology used in a research project that involved group work activities with parents of gender-variant children. Gender variance in children remains a topic people talk little about. Discussions about people who express themselves differently from the social norms attached to their birth sex, to a large extent, remain rarely discussed. They challenge a society organized largely on the basis of a binary understanding of identity, one that belongs to either male or female. This article discusses the concept of oppression as being central to the experiences of gender-variant children and young people and their parents, and it proposes social action research as a compatible and appropriate research framework for exploring their experiences. We describe the research process, identify its achievements, and explore issues that had to be confronted. We suggest that traditional research structures may benefit from being revisited in order to allow emancipatory research to more fully achieve its potential for both research and social action.     

Pathophysiology of premenstrual syndrome and premenstrual dysphoric disorder

Premenstrual syndrome (PMS) and premenstrual dysphoric disorder are triggered by hormonal events ensuing after ovulation. The symptoms can begin in the early, mid or late luteal phase and are not associated with defined concentrations of any specific gonadal or non-gonadal hormone. Although evidence for a hormonal abnormality has not been established, the symptoms of the premenstrual disorders are related to the production of progesterone by the ovary. The two best-studied and relevant neurotransmitter systems implicated in the genesis of the symptoms are the GABArgic and the serotonergic systems. Metabolites of progesterone formed by the corpus luteum of the ovary and in the brain bind to a neurosteroid-binding site on the membrane of the gamma-aminobutyric acid (GABA) receptor, changing its configuration, rendering it resistant to further activation and finally decreasing central GABA-mediated inhibition. By a similar mechanism, the progestogens in some hormonal contraceptives are also thought to adversely affect the GABAergic system. The lowering of serotonin can give rise to PMS-like symptoms and serotonergic functioning seems to be deficient by some methods of estimating serotonergic activity in the brain; agents that augment serotonin are efficacious and are as effective even if administered only in the luteal phase. However, similar to the affective disorders, PMS is ultimately not likely to be related to the dysregulation of individual neurotransmitters. Brain imaging studies have begun to shed light on the complex brain circuitry underlying affect and behaviour and may help to explicate the intricate neurophysiological foundation of the syndrome.     

Assessing social vulnerability and identifying spatial hotspots of flood risk to inform socially just flood management policy

This study presents the first nationwide spatial assessment of flood risk to identify social vulnerability and flood exposure hotspots that support policies aimed at protecting high-risk populations and geographical regions of Canada. The study used a national-scale flood hazard dataset (pluvial, fluvial, and coastal) to estimate a 1-in-100-year flood exposure of all residential properties across 5721 census tracts. Residential flood exposure data were spatially integrated with a census-based multidimensional social vulnerability index (SoVI) that included demographic, racial/ethnic, and socioeconomic indicators influencing vulnerability. Using Bivariate Local Indicators of Spatial Association (BiLISA) cluster maps, the study identified geographic concentration of flood risk hotspots where high vulnerability coincided with high flood exposure. The results revealed considerable spatial variations in tract-level social vulnerability and flood exposure. Flood risk hotspots belonged to 410 census tracts, 21 census metropolitan areas, and eight provinces comprising about 1.7 million of the total population and 51% of half-a-million residential properties in Canada. Results identify populations and the geographic regions near the core and dense urban areas predominantly occupying those hotspots. Recognizing priority locations is critically important for government interventions and risk mitigation initiatives considering socio-physical aspects of vulnerability to flooding. Findings reinforce a better understanding of geographic flood-disadvantaged neighborhoods across Canada, where interventions are required to target preparedness, response, and recovery resources that foster socially just flood management strategies.