9,325 research outputs found
Gender Matters! Analyzing Global Cultural Gender Preferences for Venues Using Social Sensing
Gender differences is a phenomenon around the world actively researched by
social scientists. Traditionally, the data used to support such studies is
manually obtained, often through surveys with volunteers. However, due to their
inherent high costs because of manual steps, such traditional methods do not
quickly scale to large-size studies. We here investigate a particular aspect of
gender differences: preferences for venues. To that end we explore the use of
check-in data collected from Foursquare to estimate cultural gender preferences
for venues in the physical world. For that, we first demonstrate that by
analyzing the check-in data in various regions of the world we can find
significant differences in preferences for specific venues between gender
groups. Some of these significant differences reflect well-known cultural
patterns. Moreover, we also gathered evidence that our methodology offers
useful information about gender preference for venues in a given region in the
real world. This suggests that gender and venue preferences observed may not be
independent. Our results suggests that our proposed methodology could be a
promising tool to support studies on gender preferences for venues at different
spatial granularities around the world, being faster and cheaper than
traditional methods, besides quickly capturing changes in the real world
The effect on the GHG emissions and energy consumption of MSW management practices on Porto City
The present case study was developed for the municipality of Porto, the second largest city of
Portugal that has near 300 000 inhabitants. Due to legislative evolution, some changes have been
implemented on MSW management practices since 1990 leading to meaningful improvements on
energy consumption and greenhouse gases emissions.
Two situations were compared: (i) the first one concerns the situation in 1990 where the MSW
produced was collected, a meaningful fraction of it was composted and the residual waste dumped;
and, (ii) the second situation where the EU legislation on recycling targets for packaging material
and diversion of organic waste from landfills was taken into account, including an incineration plant
on the management system. Greenhouse gas emissions from these two management scenarios were
calculated based on an inventory model developed by White et al (1992). Weighting factors for the
different gases based on the recommendations of the Intergovernmental Panel on Climate Change
were used to aggregate the emissions values and obtain a simple and comparable result for each
situation. Results show the advantage of the 2000 practices both in terms of energy consumption
and emissions of gases with greenhouse effect
Identificação de um gene de virulência (p74) de um vÃrus isolado da lagarta-do-álamo Condylorrhiza vestigialis.
bitstream/CENARGEN/29467/1/bp189.pd
Aged Lewis rats exposed to low and moderate doses of rotenone are a good model for studying the process of protein aggregation and its effects upon central nervous system cell physiology
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