in order to improve the knowledge of the caelifera species of north eastern iran, faunistic investigations on grasshoppers of this region were carried out during 2013-2014. collected specimens as well as deposited specimens in insect museum of ferdowsi university of mashhad were examined, in detail. totally 19 species belonging to 17 genera, 9 subfamilies and 3 families were collected and deter...

The number of Americans raising grandchildren has been rising steadily. In this article, we expand what is known by focusing on the economic implications of this trend. We compile a unique data set from the Panel Study of Income Dynamics along with its Parent Identification File on 3,240 nonretired grandparent household heads and estimate the effect of taking in a grandchild on labor force part...

This article examines the development of the educational and vocational careers of 1257 subjects born between 1961 and 1969 as a function of economic circumstances in the Netherlands during the eighties. Subjects were expected to attend school longer in times of recession, to have a higher level of education, while getting a suitable, high-quality job (in terms of number of hours, appointment t...

In 1970-7 17 people in Britain were the victims of 32 bites by foreign venomous snakes. Crotalus atrox caused eight of these bites, Bitis arietans five, and the remaining 19 bites were caused by 12 different species. All the victims were bitten while handling the snake, and 24 bites were incurred by private individuals in their own homes. Poisoning was negligible in 17 of the 32 bites but life-...

We modified a time-lapse recording to make a ‘flipbook’ of zebrafish embryogenesis. By flipping through the pages of this issue and watching the pictures in the upper corner of each even-numbered page, the dynamic cellular movements that form the zebrafish embryo can be visualized. The time-lapse record starts at the 2-cell stage (page 2 and Fig. 1B) and ends at the 16-somite stage (Fig. 1I), a...

Abstract In this paper we focus on strong solutions of some heat-like problems with a non-local derivative in time induced by Bernstein function and an elliptic operator given the generator or Fokker–Planck Pearson diffusion, covering large class important stochastic processes. Such kind time-non-local equations naturally arise treatment particle motion heterogeneous media. particular, use spec...