This study examined 5- and 6-year-olds' suggestibility and interviewer demeanor as joint predictors of their memory for a novel experience. Session 1 consisted of children taking part in a novel laboratory event. Session 2 took place after approximately a 1-week delay and consisted of children completing both a memory test concerning what happened…

Images from scanning electron microscopy are now quite common and they can be of great value in archaeology. Techniques such as secondary electron imaging, backscattered electron imaging and energy-dispersive x-ray analysis can reveal information such as the presence of weevils in grain in Roman Britain, the composition of Roman coins and the…

Universities and medical schools in China are faced with an ongoing shortage of cadavers for education and research because of insufficient numbers of cadaver donations. This article will examine the main obstacles to cadaver donation in the Chinese culture. These include superstitious traditional views about the body, a lack of legislation…

At the Medical College of Wisconsin, a procedure was developed to allow computerized grading and grade reporting of laboratory practical examinations in the Clinical Human Anatomy course. At the start of the course, first year medical students were given four Lists of Structures. On these lists, numbered items were arranged alphabetically; the…

The aim of this project is to study the quality of the discussions in groups of students during laboratory work. The project builds on a study of the role of communication in science classrooms with students aged 14-15 years. An intervention with role-playing for example reporting to another group is carried out to foster discourses that focus…

The Mechanical Equivalent of Heat Apparatus from PASCO scientific provides the means for doing a simple experiment to determine the mechanical equivalent of heat, "J." A necessary step of this experiment is to determine the temperature of an aluminum cylinder. By measuring the resistance of a thermistor embedded in the cylinder, one is able to…

A simple mixing of a hot- and cold-water stream at a T-junction was investigated. The main objective was to use mass and energy balance equations to predict mass low rates and the temperature of the mixed stream after the T-junction, and then compare these with the measured values. Furthermore, the thermocouple location after the T-junction and…

This article describes a hands-on educational activity designed to introduce students (or industrial employees) in the pharmaceutical arena to some of the most common problems in the mixing of solids: Active Pharmaceutical Ingredient (API) and lubricant (i.e. magnesium stearate) homogenization, characterization of segregation tendencies, and…

The [Co(4-pyrimidinolate)[subscript 2](H[subscript 2]O)[subscript n]] species, which can be easily and selectively prepared by simple addition of aqueous solutions of the 4-pyrimidinolate organic ligand to Co(II) acetate (or nitrate) aqueous solutions (n = 4, 6) or by controlled heating of the hydrated phases (n = 0), proved to be versatile…

Listening comprehension has had a long and ever-evolving history. Within the last 100 years, we have seen it progress from analog phonograph recordings, through the audiotape era, and into the digital realm. Questions arise as to how this evolution has proceeded, what pitfalls and accomplishments we have experienced, and where we might envision…

While the college admissions guidebook industry has churned out numerous books and websites telling students what their essays should and should not do, most of those are written by former admissions officers, not by writers or teachers of writing, and almost all rely heavily on providing models of top admissions essays. As a result, students who…

The typical "Astro 101" lecture-based course is passive, and adding well-designed learner-centered labs allows students to experience science as a pattern of thought. In this article, we present an approach to developing an introductory lab course. Identification of goals and student outcomes, particularly skills, and process and attitudinal…

The "quantum efficiency" (QE) is an important property of a light detector. This quantity can be determined in the undergraduate physics laboratory. The experimentally determined QE of a silicon photodiode appeared to be in reasonable agreement with expected values. The experiment confirms the quantum properties of light and seems to be a useful…

This report, based on data collected over three years, demonstrates that students in the postbaccalaureate student-led laboratory sections perform as well on laboratory assignments as students in the graduate student-led sections when instructor demand exceeds the available graduate-student pool. Importantly, findings indicated that the…

Evolutionary processes can be studied in nature and in the laboratory, but time and financial constraints result in few opportunities for undergraduate and high school students to explore the agents of genetic change in populations. One alternative to time consuming and expensive teaching laboratories is the use of computer simulations. We…