215,676 research outputs found

    Why the Kaine vs. Pence Vice Presidential Debate Matters

    Get PDF
    Tim Kaine and Mike Pence both have been described as boring. Many Americans still don’t know who they are, and they share their parties’ tickets with two of the most controversial and unpopular presidential candidates in modern political history. So, it’s a safe bet that their first and only debate on Tuesday night will not draw the record-setting ratings of last week’s first presidential debate between Hillary Clinton and Donald Trump – or even come close. With the possible exception of 2008, when Joe Biden and Sarah Palin were vice presidential candidates, running mates simply are not the focal point of presidential elections. Their effect on vote choice is minimal. Research in our recently published book, “The VP Advantage: How Running Mates Influence Home State Voting in Presidential Elections,” shows that running mates generally do not influence voting in their home state, let alone at the national level. Even in the short term, Gallup polling data suggest that vice presidential debates rarely change voters’ opinions. So, why take these candidates seriously

    Spatial and Temporal Habitat Use of an Asian Elephant in Sumatra

    Get PDF
    Increasingly, habitat fragmentation caused by agricultural and human development has forced Sumatran elephants into relatively small areas, but there is little information on how elephants use these areas and thus, how habitats can be managed to sustain elephants in the future. Using a Global Positioning System (GPS) collar and a land cover map developed from TM imagery, we identified the habitats used by a wild adult female elephant (Elephas maximus sumatranus) in the Seblat Elephant Conservation Center, Bengkulu Province, Sumatra during 2007–2008. The marked elephant (and presumably her 40–60 herd mates) used a home range that contained more than expected medium canopy and open canopy land cover. Further, within the home range, closed canopy forests were used more during the day than at night. When elephants were in closed canopy forests they were most often near the forest edge vs. in the forest interior. Effective elephant conservation strategies in Sumatra need to focus on forest restoration of cleared areas and providing a forest matrix that includes various canopy types

    The veepstakes: A study of the selections of the American vice presidents from 1940 to 2008

    Get PDF
    American vice presidents have become influential and powerful political figures. Yet, they are not popularly elected; since 1940, they have been personally selected by the presidential nominees themselves. This thesis examines these selections in further detail, seeking to identify which characteristics the presidential nominees look for in a running mate. The reseach question is the following: Which factors explain the vice presidential selections from 1940 to 2008? The theoretical framework for the thesis is a limited one, since the selection of vice presidents has yet to attract much scholarly interest. There are, however, three discernable theories in the literature. First, there is the ticket-balancing theory, representing the traditional explanation on the subject. It expects presidential nominees to select running mates that complement them in some way, come from large states and/or have rivalled them for the presidential nomination. The theory of increased complexity, on the other hand, claims that these traditional selection criteria is only part of the explanation and should be supplemented by a set of modern selection criteria. Finally, the theory of changed dynamics contends that traditional selection criteria no longer govern the selections. Now, the presidential nominees' primary concern is to select a running mate with political experience. The three theories are assessed comparatively, through the use of a conditional logistic regression. The data is provided by Douglas Kriner and Jody Baumgartner. The evaluation of the theories indicates that the ticket-balancing theory has less explanatory power than the two other theories. Thus, the thesis proposes a synthesis model that combines the theory of increased complexity and the theory of changed dynamics. This model shows that presidential nominees generally have chosen ambitious running mates that enjoy much media coverage, whilst they do not pick running mates that rivalled them for the presidential nomination. Also, a difference over time is observable: Prior to 1976, presidential nominees tended to pick running mates from populous states, but the same tendency is not existent after 1972. Lastly, the presidential nominees have probably been conscious of the running mates' genders and ethnic backgrounds: Some have wanted the tickets to be demographically balanced, whilst most would not even consider the possibility of such balance.Master i Sammenliknende politikkSAMPOL350MASV-SAP

    Scarcity of female mates predicts regional variation in men’s and women’s sociosexual orientation across US states

    Get PDF
    Previous studies have linked regional variation in willingness to engage in uncommitted sexual relationships (i.e., sociosexual orientation) to many different socio-ecological measures, such as adult sex ratio, life expectancy, and gross domestic product. However, these studies share a number of potentially serious limitations, including reliance on a single dataset of responses aggregated by country and a failure to properly consider intercorrelations among different socio-ecological measures. We address these limitations by (1) collecting a new dataset of 4,453 American men’s and women’s sociosexual orientation scores, (2) using multilevel analyses to avoid aggregation, and (3) deriving orthogonal factors reflecting US state-level differences in the scarcity of female mates, environmental demands, and wealth. Analyses showed that the scarcity of female mates factor, but not the environmental demand or wealth factors, predicted men’s and women’s sociosexual orientation. Participants reported being less willing to engage in uncommitted sexual relationships when female mates were scarce. These results highlight the importance of scarcity of female mates for regional differences in men’s and women’s mating strategies. They also suggest that effects of wealth-related measures and environmental demands reported in previous research may be artifacts of intercorrelations among socio-ecological measures or, alternatively, do not necessarily generalize well to new datasets

    Female Mate Choice is Influenced by Male Sport Participation

    Get PDF
    Sexual selection theory argues that females invest more heavily in reproduction than males and thus tend to be choosier in terms of mate choice. Sport may provide a context within which females can gain information about male quality to inform this choice. Males may be able to display attractive traits such as athleticism, strength, and physique to females while participating in sport. We predicted that females would favor males that participated in team sports over individual sports and non-athletes because team sport athletes may be more likely to display qualities such as the ability to work well with others and role acceptance. We used a questionnaire, a photograph, and manipulated descriptions to gauge the effects of sport involvement, attractiveness, and status on 282 females’ willingness to participate in various types of relationships. Team sport athletes were perceived as being more desirable as potential mates than individual sport athletes and non-athletes. It is suggested that team sport athletes may have traits associated with good parenting such as cooperation, likeability, and role acceptance, and/or these athletes may be better able to assert dominance in a team setting. Results are discussed in terms of further implications and future research

    Across-Line SNP Association Study for Direct and Associative Effects on Feather Damage in Laying Hens

    Get PDF
    An association study between SNP markers and feather condition score on the back, rump and belly of laying hens was performed. Feather condition score is a measure of feather damage, which has been shown to be closely related to feather pecking behaviour in hens housed in groups. A population of 662 hens was genotyped for 1536 SNPs of which 1022 could be used for the association study. The analysis was conducted across 9 different lines of White Leghorn and Rhode Island Red origin. Across lines linkage disequilibrium is conserved at shorter distances than within lines; therefore, SNPs significantly associated with feather condition score across lines are expected to be closer to the functional mutations. The SNPs that had a significant across-line effect but did not show significant SNP-by-line interaction were identified, to test that the association was consistent across lines. Both the direct effect of the individual’s genotype on its plumage condition, and the associative effect of the genotype of the cage mates on the individual’s plumage condition were analysed. The direct genetic effect can be considered as the susceptibility to be pecked at, whereas the associative genetic effect can be interpreted as the propensity to perform feather pecking. Finally, 11 significant associations between SNPs and behavioural traits were detected in the direct model, and 81 in the associative model. A role of the gene for the serotonin receptor 2C (HTR2C) on chromosome 4 was found. This supports existing evidence of a prominent involvement of the serotonergic system in the modulation of this behavioural disorder in laying hens. The genes for IL9, IL4, CCL4 and NFKB were found to be associated to plumage condition, revealing relationships between the immune system and behaviour

    When does female multiple mating evolve to adjust inbreeding? : Effects of inbreeding depression, direct costs, mating constraints, and polyandry as a threshold trait

    Get PDF
    Ackowledgements: This work was funded by a European Research Council Starting Grant to JMR. All simulations were performed using the Maxwell computing cluster at the University of AberdeenPeer reviewedPublisher PD

    Market implied costs of bankruptcy

    Get PDF
    This paper takes a novel approach to estimating bankruptcy costs by inference from market prices of equity and put options using a dynamic structural model of capital structure. This approach avoids the selection bias of looking at firms in or near default and therefore permits theories of ex ante capital structure determination to be tested. We identify significant cross sectional variation in bankruptcy costs across industries and relate these to specific firm characteristics. We find that asset volatility and growth options have significant positive impacts, while tangibility and size have negative impacts. Our bankruptcy cost variable estimate significantly negatively impacts leverage ratios. This negative impact is in addition to that of other firm characteristics such as asset intangibility and asset volatility. The results provide strong support for the tradeoff theory of capital structure

    Do partnered women discriminate men's faces less along the attractiveness dimension?

    Get PDF
    Romantic relationships can have positive effects on health and reproductive fitness. Given that attractive potential alternative mates can pose a threat to romantic relationships, some researchers have proposed that partnered individuals discriminate opposite-sex individuals less along the physical attractiveness dimension than do unpartnered individuals. This effect is proposed to devalue attractive (i.e., high quality) alternative mates and help maintain romantic relationships. Here we investigated this issue by comparing the effects of men's attractiveness on partnered and unpartnered women's performance on two response measures for which attractiveness is known to be important: memory for face photographs (Study 1) and the reward value of faces (Study 2). Consistent with previous research, women's memory was poorer for face photographs of more attractive men (Study 1) and more attractive men's faces were more rewarding (Study 2). However, in neither study were these effects of attractiveness modulated by women's partnership status or partnered women's reported commitment to or happiness with their romantic relationship. These results do not support the proposal that partnered women discriminate potential alternative mates along the physical attractiveness dimension less than do unpartnered women
    • …
    corecore