Research has demonstrated that rats' rates of operant behavior maintained by 1% sucrose reinforcement in the first half of an experimental session are heightened when food-pellet reinforcers, rather than 1% sucrose, will be available in the second half. Experiment 1 showed that rats that had been displaying this positive induction effect acquired…

Modern low-cost data acquisition systems enable pupils to study the voltage-current characteristics of a wide range of different materials and devices in a quick and convenient way. In particular, it is possible to study materials, such as meat and vegetables, not normally associated with school physics experiments.

CPEB-1 is a sequence-specific RNA binding protein that stimulates the polyadenylation-induced translation of mRNAs containing the cytoplasmic polyadenylation element (CPE). Although CPEB-1 was identified originally in Xenopus oocytes, it has also been found at postsynaptic sites of hippocampal neurons where, in response to N-methyl-D-aspartate…

Mutations in the amyloid precursor protein (APP) gene inducing abnormal processing and deposition of [beta]-amyloid protein in the brain have been implicated in the pathogenesis of Alzheimer's disease (AD). Although Tg2576 mice with the Swedish mutation ("hAPPswe") exhibit age-related [Alpha][beta]-plaque formation in brain regions like the…

The sleeping neocortex shows nested oscillatory activity in different frequency ranges, characterized by fluctuations between "up-states" and "down-states." High-density neuronal ensemble recordings in rats now reveal the interaction between synchronized activity in the hippocampus and neocortex: Electroencephalographic sharp…

There has been growing interest in linking the learning of Science with the literacies of Science and representations. Recent attention has been focused on learning theories that emphasise the socio-cultural and situated aspects of learning, and in particular the notion of learning as participation in a discourse community. This paper will…

This small animal care course guide is designed for students who will be seeking employment in veterinary hospitals, kennels, grooming shops, pet shops, and small-animal laboratories. The guide begins with an introductory section that gives the educational philosophy of the course, job categories and opportunities, units of instruction required…

Animals are the subject of the student resource unit which is to be used with high school vocational agriculture students. Animal housing and equipment, the first section, deals with controlled environment, energy requirements, esthetics, air, water, and noise. Animal waste and byproducts are covered in terms of Federal government program, some of…

A study was conducted to identify the skills which are performed and essential for success in seven animal production and management (small animal care) occupations: animal health assistant, laboratory animal assistant, kennel worker, dog groomer, pet shop worker, stable worker, and zoo keeper. Specific objectives were (1) to develop and validate…

Six theme articles examine ways that vocational agriculture teachers can keep current, including related hobbies, resource persons, beekeeping as a supervised occupational experience, specialty crops such as fruits and nuts, an inservice poultry project, and trade and industry organizations. (SK)

Discusses the changing function of the modern zoo from its merely recreational role to its newly emerging role as preserver of species, educator, and center for research. Describes the San Diego Zoo as the model for the modern zoo and provides tips for planning field trips to a zoo. (JM)

Ranger Rick's NatureScope is a creative education series dedicated to inspiring in children an understanding and appreciation of the natural world while developing the skills they will need to make responsible decisions about the environment. The topic of this issue is "Let's Hear It for the Herps!" Contents are organized into the…

Herein, it is stated that the Secretary of the Interior is directed to transmit to the Senate the report of Dr. Sheldon Jackson upon "The introduction of domestic reindeer in the district of Alaska" for 1904, with maps and illustrations. Following a letter of transmittal from the Secretary of Interior to the President of the Senate, this…

Provides a brief history and description of a field test in the United States and Canada of the National Association for the Advancement of Humane Education's humane education curriculum guide for grades 1-6. (CS)

Guidelines are presented for selecting the kinds of animals to bring into the elementary classroom as pets. (SA)