This article examines the extent to which indicators of the college-going climate of urban high schools are associated with students’ application to, enrollment in, and choice among four-year colleges. The investigators examine two mechanisms by which high schools may shape college enrollment among low-income students in an urban school system: (1) by ensuring whether seniors who aspire to a fo...

The majority of pollinating insects are generalists whose lifetimes overlap flowering periods of many potentially suitable plant species. Such generality is instrumental in allowing exotic plant species to invade pollination networks. The particulars of how existing networks change in response to an invasive plant over the course of its phenology are not well characterized, but may shed light o...

ANTONIS MARKOGIANNAKIS, PANAYOTIS T. TASSIOS, MARIA LAMBIRI, LINDA R. WARD, JENNY KOUREA-KREMASTINOU, NICHOLAS J. LEGAKIS, THE GREEK NONTYPHOIDAL SALMONELLA STUDY GROUP,† AND ALKIVIADIS C. VATOPOULOS* Department of Microbiology and Department of Hygiene and Epidemiology, Medical School, University of Athens, and National Reference Centre for Salmonella and Shigella, National School of Public He...

Dissemination of vector-transmitted pathogens depend on the survival and dispersal of the vector and the vector's ability to transmit the pathogen, while the host range of vector and pathogen determine the breath of transmission possibilities. In this study, we address how the interaction between dispersal and plant fidelities of a pathogen (stolbur phytoplasma tuf-a) and its vector (Hyalesthes...

It has been reported that several members of Convolvulaceae family such as Convolvulus arvensis possess cytotoxic activity on some tumor cell lines. Proteoglycan mixture, the water extract of C. arvensis with high molecular weight, has potent anti-angiogenesis and stimulating effects. In this study, arial parts of C. arvensis were collected and identified, and the cytotoxic effects of chlorofor...

Ayurvedha and Herbal medicine are two important forms of alternative medicine that are widely available. Medicinal plants have disease curing properties and this is due to the compounds presents in the extracts. This work is mainly concerned with the identification of the therapeutic properties of Indian medicinal plant extracts. So we identified the compounds of different medicinal plants like...