Study on the Structural Dynamics of the Elevated Station in Rail Transportation

2012 ◽  
Vol 246-247 ◽  
pp. 492-495
Author(s):  
Jian Hong Mao

As the number of the urban population attains a continuous increasing these years, the carrying load of all kinds of transportation lines in society changes into heavier as well. For the purpose of fulfilling the services demands of the rail transportation, the elevated station has turned into a new type of transportation structure, and exercises a critical role in the reduction of the social transportation pressure. The elevated station is a body integrated by both the rail transportation and the elevated bridge, and is much stronger than the traditional structural model in the aspects of the carrying load and structure performance. In accordance with this point, the author emphatically analyzes the structural dynamics of the elevated station in rail transportation in this paper, with the purpose of bringing the using performance of the elevated station into better play.

2020 ◽  
Author(s):  
Zhibin Jiang ◽  
Fan Yang ◽  
Bu Zhong ◽  
Xuebing Qin

BACKGROUND The Covid-19 pandemic had turned the world upside down, but not much is known about how people’s empathy might be affected by the pandemic. OBJECTIVE This study examined 1) how empathy towards others might be influenced by the social support people obtained by using social media; and 2) how the individual demographics (e.g., age, income) may affect empathy. METHODS A national survey (N = 943) was conducted in China in February 2020, in which the participants read three real scenarios about low-income urban workers (Scenario I), small business owners in cities (Scenario II), and farmers in rural areas (Scenario III) who underwent hardship due to COVID-19. After exposure to others’ difficulties in the scenarios, the participants’ empathy and anxiety levels were measured. We also measured the social support they had by using social media. RESULTS Results show that social support not only positively impacted empathy, β = .30, P < .001 for Scenario I, β = .30, P < .001 for Scenario II, and β = .29, P < .001 for Scenario III, but also interacted with anxiety in influencing the degree to which participants could maintain empathy towards others, β = .08, P = .010 for Scenario I, and β = .07, P = .033 for scenario II. Age negatively predicted empathy for Scenario I, β = -.08, P = .018 and Scenario III, β = -.08, P = .009, but not for Scenario II, β = -.03, P = .40. Income levels – low, medium, high – positively predicted empathy for Scenario III, F (2, 940) = 8.10, P < .001, but not for Scenario I, F (2, 940) = 2.14, P = .12, or Scenario II, F (2, 940) = 2.93, P = .06. Participants living in big cities expressed greater empathy towards others for Scenario III, F (2, 940) = 4.03, P =.018, but not for Scenario I, F (2, 940) = .81, P = .45, or Scenario II, F (2, 940) = 1.46, P =.23. CONCLUSIONS This study contributes to the literature by discovering the critical role empathy plays in people’s affective response to others during the pandemic. Anxiety did not decrease empathy. However, those gaining more social support on social media showed more empathy for others. Those who resided in cities with higher income levels were more empathetic during the COVID-19 outbreak. This study reveals that the social support people obtained helped maintain empathy to others, making them resilient in challenging times.


2014 ◽  
Vol 7 (2) ◽  
pp. 283-298 ◽  
Author(s):  
Abdul Ghani Imad

The problematic addressed in this article is the challenge initiated by the Arab revolutions to reform the Arab political system in such a way as to facilitate the incorporation of ‘democracy’ at the core of its structure. Given the profound repercussions, this issue has become the most serious matter facing the forces of change in the Arab world today; meanwhile, it forms the most prominent challenge and the most difficult test confronting Islamists. The Islamist phenomenon is not an alien implant that descended upon us from another planet beyond the social context or manifestations of history. Thus it cannot but be an expression of political, cultural, and social needs and crises. Over the years this phenomenon has presented, through its discourse, an ideological logic that falls within the context of ‘advocacy’; however, today Islamists find themselves in office, and in a new context that requires them to produce a new type of discourse that pertains to the context of a ‘state’. Political participation ‘tames’ ideology and pushes political actors to rationalize their discourse in the face of daily political realities and the necessity of achievement. The logic of advocacy differs from that of the state: in the case of advocacy, ideology represents an enriching asset, whereas in the case of the state, it constitutes a heavy burden. This is one reason why so much discourse exists within religious jurisprudence related to interest or necessity or balancing outcomes. This article forms an epilogue to the series of articles on religion and the state published in previous issues of this journal. It adopts the methodologies of ‘discourse analysis’ and ‘case studies’ in an attempt to examine the arguments presented by Islamists under pressure from the opposition. It analyses the experiences, and the constraints, that inhibit the production of a ‘model’, and monitors the development of the discourse, its structure, and transformations between advocacy, revolution and the state.


2021 ◽  
pp. 014303432098520
Author(s):  
Ma. Jenina N. Nalipay ◽  
Yuyang Cai ◽  
Ronnel B. King

The purpose of the present study was to examine whether parents’ utility value perceptions predicted their children’s utility value perceptions, demonstrating social contagion effects. We also examined whether utility value would predict achievement. This is a cross-sectional study that utilized data from a subsample of adolescent students from the Program for International Student Assessment (PISA 2015), which focused on science learning and achievement from 18 regions. We performed multi-level structural equation modeling to analyze the data. Results revealed that parents’ utility value perceptions predicted students’ utility value perceptions, which, in turn, predicted science achievement. The findings of this study provide evidence of the social contagion of utility value perceptions from parents to their children and the critical role of utility value in predicting achievement across various regions/countries. Our study highlights the crucial role parents play in adolescents’ motivational and learning outcomes and suggest parental involvement in programs toward enhancing adolescents’ motivation and achievement.


2021 ◽  
Vol 24 ◽  
Author(s):  
Ana María Fernández ◽  
Carmen Gloria Baeza ◽  
Paula Pavez ◽  
Nerea Aldunate

Abstract We evaluated the psychometric properties of the empathy quotient (EQ) scale translated to Spanish in Chile. We estimated its structural validity, and its construct validity with other convergent measures of empathy and attachment, as well an inversely associated construct such as aggression. We used a general sample of students and community individuals (n = 336). Participants completed the EQ, Interpersonal Reactivity Index (IRI), and Buss-Perry Aggression Questionnaire (BPAQ). Another exclusively community group (n = 102) completed Collins Adult Attachment scale and the EQ. CFA and ESEM analyses confirmed the structural model fit of the data to three previously reported dimensions of the EQ: cognitive empathy (CE), emotional reactivity (ER) and social skills (SS). Sex-differences in emotional reactivity, and the predicted relationships with the convergent measures were observed. The current Chilean version of the EQ resulted in an appropriate multidimensional measurement of empathy. Finally, providing a specific social skills dimension extends the traditional conception of cognitive and affective empathy to the social realm in the Chilean context.


2017 ◽  
Vol 754 ◽  
pp. 309-312 ◽  
Author(s):  
Robert Jankowski

During severe earthquakes, pounding between adjacent superstructure segments of highway elevated bridges was often observed. It is usually caused by the seismic wave propagation effect and may lead to significant damage. The aim of the present paper is to show the results of the numerical analysis focused on damage-involved pounding between neighbouring decks of an elevated bridge under seismic excitation. The analysis was carried out using a lumped mass structural model with every deck element discretized as a SDOF system. Pounding was simulated by the use of impact elements which become active when contact is detected. The linear viscoelastic model of collision was applied allowing for dissipation of energy due to damage at the contact points of colliding deck elements. The results show that pounding may substantially modify the behaviour of the analysed elevated bridge. It may increase the structural response or play a positive role, and the response depends on pattern of collisions between deck elements. The results also indicate that a number of impacts for a small in-between gap size is large, whereas the value of peak pounding force is low. On the other hand, the pounding force time history for large gap values shows only a few collisions, but the value of peak pounding force is substantially large, what may intensify structural damage.


1992 ◽  
Vol 2 (1) ◽  
pp. 131-146
Author(s):  
Artemis Leontis

Reflection on the history of the novel usually begins with consideration of the social, political, and economic transformations within society that favored the “rise” of a new type of narrative. This remains true even with the numerous and important studies appearing during the past ten years, which relate the novel to an everbroadening spectrum of ideological issues—gender, class, race, and, most recently, nationalism. Yet a history of the genre might reflect not just on the novel’s national, but also its transnational, trajectory, its spread across the globe, away from its original points of emergence. Such a history would take into account the expansion of western markets—the growing exportation of goods and ideas, as well as of social, political, and cultural forms from the West—that promoted the novel’s importation by nonwestern societies. Furthermore, it could lead one to examine the very interesting inverse relationship between two kinds of migration, both of which are tied to the First World’s uneven “development” of the Third. In a world system that draws out natural resources in exchange for technologically mediated goods, the emigration of laborers and intellectuals from peripheral societies to the centers of power of the West and the immigration of a western literary genre into these same societies must be viewed as related phenomena.


2021 ◽  
Vol 4 ◽  
pp. 5-10
Author(s):  
S. FURS ◽  
◽  
A. FEDOSEEV ◽  

The article is devoted to the consideration of such an object of interdisciplinary research as the elite, namely, the latest trends in its study. It is shown that the consideration of this phenomenon has been going on for a long time, but now there is a sharp change in the focus of research – a new methodology is being developed. This is due to the fact that the axiom taken is the provision of a significant influence of the elite not only on the distribution of resources (economic, political, administrative) but also on the development (or recession) of the nation as a whole. The article presents a detailed analysis of the methodology for measuring the elite quality index which formed the basis for an international study conducted in 2020.


2021 ◽  
Vol 44 (1) ◽  
Author(s):  
Masaki Isoda

As a frontal node in the primate social brain, the medial prefrontal cortex (MPFC) plays a critical role in coordinating one's own behavior with respect to that of others. Current literature demonstrates that single neurons in the MPFC encode behavior-related variables such as intentions, actions, and rewards, specifically for self and other, and that the MPFC comes into play when reflecting upon oneself and others. The social moderator account of MPFC function can explain maladaptive social cognition in people with autism spectrum disorder, which tips the balance in favor of self-centered perspectives rather than taking into consideration the perspective of others. Several strands of evidence suggest a hypothesis that the MPFC represents different other mental models, depending on the context at hand, to better predict others’ emotions and behaviors. This hypothesis also accounts for aberrant MPFC activity in autistic individuals while they are mentalizing others. Expected final online publication date for the Annual Review of Neuroscience, Volume 44 is July 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.


Author(s):  
T.M. Bohn ◽  
◽  
S.Yu. Malysheva ◽  
A.A. Salnikova ◽  
◽  
...  

Based on the example of Kazan in the 1920s, the difficulties and problems of implementing the Soviet policy of urbanization and “socialist city” construction in cities with a nationally and religiously heterogeneous population are shown. This policy and the related processes of rural-urban migration, “indigenization”, “apartment redistribution”, and development of the urban outskirts at the expense of the former “bourgeois” center destroyed, deliberately and purposefully, the urban culture that had previously prevailed here and changed the social and national composition of the urban population. Therefore, they can be regarded as the tools of “positive discrimination”. The “positive discrimination” of the formerly dominant urban Russian culture in favor of the developing Tatar culture, mostly in its rural variant, manifested itself very clearly in education, namely in the content and design of the Soviet Tatar alphabet (alifba). However, the practice of granting preferences to the previously discriminated strata turned out to be short-term, tooled for the tasks of immediate strengthening of the social base of the Soviet power, and designed to destroy the former society and culture. These practices of dealing with multiculturalism became less popular by the late 1920s–early 1930s, as the Bolshevik power stabilized and “state-oriented” and unifying tendencies in the power policy increased.


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