منابع مشابه
Nematodes Infect, But Do Not Manipulate Digging By, Sand Crabs, Lepidopa benedicti
We examined sand crabs (Lepidopa benedicti) for endoparasites, and found the only parasite consistently infecting the studied population were small nematodes. Because many nematodes have complex life cycles involving multiple hosts, often strongly manipulating their hosts, we hypothesized that nematodes alter the behavior of their sand crab hosts. We predicted that more heavily infected crabs w...
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More substantive interaction between students and an instructor is associated with higher levels of student engagement. Substantive interaction between teachers and students consisted of presentation of information on academic content, monitoring of work, and feedback about performance. Most student-teacher interaction took place in a group setting, with only a small part of such interaction oc...
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Promises are social contracts that can be broken, kept, or exceeded. Breaking one’s promise is evaluated more negatively than keeping one’s promise. Does expending more effort to exceed a promise lead to equivalently more positive evaluations? Although linear in their outcomes, we expected an asymmetry in evaluations of broken, kept, and exceeded promises. Whereas breaking one’s promise is obvi...
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ژورنال
عنوان ژورنال: Nature
سال: 1969
ISSN: 0028-0836,1476-4687
DOI: 10.1038/2211177a0