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Leonardo da Vinci's tree rule may be explained by wind
For instance, the hydraulic explanation called the “pipe model” proposes that the branching proportions have to do with the way that vascular vessels connect the tree’s roots to its leaves to provide water and nutrients. But since vascular vessels account for as little as 5% of the branch cross section (for large trunks in some tree species), it seems unlikely that they would govern the tree’s entire architecture.
scale  tree  hydraulic  vascular  branch  fractal 
11 days ago
Dark Motives and Elective Use of Brainteaser Interview Questions - Highhouse - - Applied Psychology - Wiley Online Library
Abstract
Brainteaser interview questions such as “Estimate how many windows are in New York” are just one example of aggressive interviewer behaviour that lacks evidence for validity and is unsettling to job applicants. This research attempts to shed light on the motives behind such behaviour by examining the relation between dark‐side traits and the perceived appropriateness of brainteaser interview questions. A representative sample of working adults (n = 736) was presented with a list of interview questions that were either traditional (e.g., “Are you a good listener?”), behavioural (e.g., “Tell me about a time when you failed”), or brainteaser in nature. Results of a multiple regression, controlling for interviewing experience and sex, showed that narcissism and sadism explained the likelihood of using brainteasers in an interview. A subsequent bifactor analysis showed that these dark traits shared a callousness general factor. A second longitudinal study of employed adults with hiring experience demonstrated that perspective‐taking partially mediated the relationship between this general factor and the perceived helpfulness and abusiveness of brainteaser interview questions. These results suggest that a callous indifference and a lack of perspective‐taking may underlie abusive behaviour in the employment interview.
brainteaser  interview  tech 
6 weeks ago
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