This paper studies the equilibrium predatory practices that may arise when the borrowers have behavioral weaknesses. Rational lenders offer short term contracts that can be renewed at the cost of paying a penalty fee. We show how the optimal contracts depend on the degree of näıveté of the time inconsistent customers. Penalty fees have a dual role : they increase market share by providing a use...

An investigation on the insects in the jujube ecosystem in Taigu District of Shanxi Province, Northern China showed that more species and individual numbers of pest, predatory and neutral insects were found on the tree than on the ground. The ratio of the species and individual numbers of predatory and neutral insects to those of pest insects fluctuated from year to year. Homoptera, Coleoptera ...

introduction: citation tracking is a bibliometrics method to analyze the scientific impact of journal articles which can be done through scopus (sc), google scholar (gs), or isi web of knowledge (wos). in the current study, we analyzed the citations to 2006-2012 articles of iranian journal of nuclear medicine (ijnm) in the sc and gs. methods: we retrieved the relevant data from sc and gs offici...

The morphology, swimming kinematics and prey selection of hydromedusae have been shown to be closely related to hydromedusan foraging mode. In order to confirm this link, we examined the in situ foraging behavior of hydromedusae by video-recording and quantifying the in situ swimming activity and tentacle-extension behavior of 8 co-occurring hydromedusae from the waters surrounding Friday Harbo...

Plenty is being written about predatory publishers (Clark & Thompson, 2017; Pickler et al., 2015) but little is being done to stop them. The one valiant effort to expose them: Beall’s List of Predatory publishers, has been forcibly removed from the Internet (Watson, 2017a), and while someone else has made the list available online (http://beallslist. weebly.com/; accessed 18 September 2017), th...

Article history: Received 8 December 2015 Received in revised form 26 July 2016 Accepted 17 September 2016 Available online 20 September 2016 Manipulative experiments are rarely possible with large predatory mammals. However, field manipulations of predatory arthropods are common and could provide general insights into top-predator impacts. For example, observational studies suggest that conser...