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161.
162.
As efforts to end hunger, food insecurity and malnutrition evolve within the context of United Nations' Global Compact and Sustainable Development Goals; such problems remain far from being solved due, in part, to their complex nature. Brazil exemplifies such multifaceted scenario as the country has left the “hunger map” in 2014 but now faces another issue: The quality of the food available to its population. Physical, social, economic, cultural, and political factors have impacted the Brazilian food environment, shaping new eating habits such as the replacement of traditional local food for processed foods. Within this context, educational institutions may play an important role in spreading knowledge about major social challenges such as this and their interdependent causes. This paper presents the case study of a project conducted by business and public administration students in a discipline called Integrated Education for Sustainability (FIS), offered to undergraduate students at one of Brazil's most important management schools. In 2017, the project worked on the topic of Food Deserts, challenging the students to develop a digital and interactive mosaic that uncovers the situation of the food deserts in São Paulo. Data were collected from participant observation, field trips, events, and interviews conducted in class with 18 professionals working on several areas related to the topic. The article provides insights into (a) the importance of education to tackle the sustainability challenges, (b) lessons learned from the 14th edition of FIS course, and (c) the several barriers to food access in the city of São Paulo.  相似文献   
163.
Menegatti  Mario 《Public Choice》2021,188(1-2):269-287

This work analyzes a two-period rent-seeking game, with the aim of studying the effect of risk aversion on the optimal choices made by the rent-seekers. We first prove that the equilibrium in two-period rent-seeking games always is unique. The analysis also shows that more risk aversion reduces the investment in the rent-seeking game in a two-period framework without introducing the additional condition of prudence, required in one-period models. Similarly, the introduction of a risky rent, instead of a given rent, implies, in the two-period framework, a reduction in investment under the condition that the rent-seekers are risk averse. Moreover, with risk aversion, larger first-period wealth increases investment in the rent-seeking game and larger second-period wealth reduces it. When both first-period and second-period wealth increase, investment in the rent-seeking game declines if the rent-seeker is risk averse and imprudent. Lastly, when a risky level of second-period wealth is introduced, the rent-seeker increases (reduces) investment in the rent-seeking game if he is risk averse and prudent (imprudent).

  相似文献   
164.
正When we look at the situation right now,in terms of COVID-19 origin investigations,we have a state of affairs that is tainted black by the geopolitical narrative.That narrative first took hold with the Donald Trump administration and today still exudes very strongly from the Joe Biden administration.  相似文献   
165.
ABSTRACT

Voting advice applications-(VAA) generated data provide an ideal data source for testing competing theories of voting behavior. To that end, this paper focuses on comparing metrics of voter-party ideological concordance based on rival theories of issue voting (proximity and directional theory). Classification performance of the competing models, in terms of correctly predicting party choice, is evaluated in diverse cross-national settings. Drawing on the EUvox dataset (a VAA for the European Parliament elections in 2014) statistical learning techniques are used to model the decisional logic of voters in high- and low-dimensional policy space. The results show that statistical learning methods can improve classification performance significantly and that how dimensionality is modeled affects the performance of competing issue voting models.  相似文献   
166.
With changing socio-economic conditions, some men choose to become stay-at-home fathers in Hong Kong. Although they constitute only about .5% of the total male population, they have captured widespread media attention in recent years. This paper is an exploratory study on the gender representation of stay-at-home fathers in newspapers, and their identity and practice in real life in relation to the construction of masculinity in the Asian context, with particular focus on the intersection of masculinity and social class. Although stay-at-home fathers have given up their traditional breadwinner role, the media continue to portray them in terms of conventional masculinity. Contrary to the findings in Western society, this paper, which is based on Bourdieu’s practice theory, reports that middle-class men in Hong Kong with social and cultural capital are less reflexive in their gender habitus to accept their carer identity, whereas working-class fathers, who lack the appropriate capital to resume their provider status, define themselves as carers who are responsible to the family. As the identity of provider is still central to men, the emergence of this new fatherhood is only a refashioning of the traditional role of fathers and thus does not challenge the existing gender structure.  相似文献   
167.
This article takes stock of the most recent presidential election in the Republic of Cyprus and connects it to broader currents in post-crisis European political settings. Although the elections took place against a backdrop of improving economic prospects, the crisis has left its political mark in a number of areas we identify that include a growing political fragmentation, the rise of the far right and increased voter abstention. The empirical analysis focuses on the media campaign and draws on a topic-modelling approach to identify and contrast emphasis given to policy issues over the two electoral rounds. The policy themes identified clustered around two dominant dimensions of political conflict: the Cyprus conflict and the economy.  相似文献   
168.
Utilizing Critical Race Theory (CRT) as a conceptual framework, this study examines student perception of faculty of color in academia from student professor preference. Using an experimental design to test the effect of race on selection of faculty with whom to take a course, we showed student participants two types of pairings of faculty: first, pairs of photos of faculty of different races, and same age and attractiveness, then names of faculty, paired by different race were shown. The study provided evidence of racial bias with a strong preference for courses taught by White faculty by various subgroups of students, providing a snapshot of what faculty of color potentially stand to face in classroom environments.  相似文献   
169.
170.
The method of sample recovery for trace detection and identification of explosives plays a critical role in several criminal investigations. After bombing, there can be difficulties in sending big objects to a laboratory for analysis. Traces can also be searched for on large surfaces, on hands of suspects or on surfaces where the explosive was placed during preparatory phases (e.g. places where an IED was assembled, vehicles used for transportation, etc.).In this work, triacetone triperoxide (TATP) was synthesized from commercial precursors following reported methods. Several portions of about 6 mg of TATP were then spread on different surfaces (e.g. floors, tables, etc.) or used in handling tests. Three different swabbing systems were used: a commercial swab, pre-wetted with propan-2-ol (isopropanol) and water (7:3), dry paper swabs, and cotton swabs wetted with propan-2-ol. Paper and commercial swabs were also used to sample a metal plate, where a small charge of about 4 g of TATP was detonated. Swabs were sealed in small glass jars with screw caps and Parafilm® M and sent to the laboratory for analysis. Swabs were extracted and analysed several weeks later by gas chromatography/mass spectrometry. All the three systems gave positive results, but wetted swabs collected higher amounts of TATP. The developed procedure showed its suitability for use in real cases, allowing TATP detection in several simulations, including a situation in which people wash their hands after handling the explosive.  相似文献   
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