Separate groups of rats underwent an unbiased conditioned place preference (CPP) procedure involving alternate pairings of distinct environments with intravenous (IV) injections of cocaine (.75 mg/kg) or saline immediately or 15 min after injection. A subsequent extinction phase consisted of exposure to both conditioning environments preceded by saline injection (Ext). Finally, an IV priming in...

Changes in the nature of the seed coat caused by gut passage are considered to be the proximate causes of changes in germination patterns. Modifications of seed coat permeability may be decisive in saline environments (e.g. Mediterranean wetlands), in which the response of the seed to osmotic stress, or its resistance to toxicity caused by some ions may be affected. We analysed how passage thro...

In the experiment, laboratory studies were conducted to evaluate salt resistance of wheat samples. Different saline environments created in conditions (0.5, 1.0 and 1.5% concentration NaCe salt) seed germination soft varieties samples, length seedlings number roots determined. It was noted that Khumo, Taraqqiyot, Emir, Pervitsa, Rhapsody, Zimnitsa, Drujba are resistant strong salinity, samples ...

Among different doses of gamma rays, 1.5 kR induced 71.84% callus in Basrnati rice in amodified MS medium and 2% redifferentiation under anon-saline environment, 20% callusing response with 7.5%,2.8% and 2.5% redifferentiation was induced by 2.0 kR at electrical conductivity (EC) of 4,s and 6 dS.m of NaCl respectively, in regeneration medium. A non-irradiated non-saline environment reveale...

This paper describes the development of a variety of computer-based assessment opportunities, both formative and summative, that are available to a large first year biology class at The University of Sydney. These materials include: weekly quizzes; a mock exam; quiz sections in tutorials; and special self-assessment modules (SAMs). The weekly quiz is password protected and secure but the remain...

Two methods of grid based and image based modeling were put forward respectively to represent the landform of watersheds on the Loess Plateau, China. Many kinds of spatial data such as Digital Elevation Model (DEM), Remote Sensing (RS) images, and photos are utilized to establish the digital 3-D terrains of watersheds on the Loess Plateau, which provides 3-D virtual geographic environments for ...

Background: Arbuscular mycorrhizal fungi (AMF) have the potential to optimize the rhizospheric soil characteristics considerably thereby affecting plant growth. Objectives: The aim is to investigate the effects of fungi inoculation (Glomus intraradices) on morphological, physiological and phytochemical traits of Rosemary (Rosemarinus officinalis L.) under salt stress. Methods: A factorial...

INTRODUCTION Ferromagnetic port-containing breast tissue expanders are currently labeled MRI-unsafe because of the presumption that magnets should not enter the machine. However, designating these devices as MRI-unsafe can lead to unnecessary procedures or suboptimal imaging choices. This study provides an ex vivo analysis of how breast tissue expanders behave when subjected to strong magnetic ...