Two-choice conditional discrimination performance of pigeons as a function of reward expectancy,prechoice delay,and domesticity

In a discrete-trial two-choice conditional discrimination task, pigeons which received food for a correct choice following the presentation of one cue and water for a correct choice following another cue performed better than pigeons which received food and water equally often in both cases when delays of several seconds intervened between the conditional cue and choice stimuli presentations. These results suggest that feedback properties of reinforcer-specific expectancies can be important in conditional discrimination learning in pigeons. An additional finding was that wild-caught pigeons regularly exhibited a higher percentage of correct choices than domestic subjects.     

Analyzing Challenges to Library Materials: An Incomplete Picture

This research project used Freedom of Information requests to obtain public records from Alabama institutions about challenges to materials in public schools and public libraries. Challenges occur when a patron objects to certain content. In this analysis, we examine the records of challenges. The research questions were as follows: How many challenges occur in public schools and libraries? What is the nature of these challenges? Are there institutional or demographic factors that are correlated to the occurrence of challenges? In this exploratory study, the number of reported challenges was surprisingly low. We investigated whether reported challenges were related to certain institutional or demographic factors, but did not find any discernible relationships. The data suggest that most challenged material is retained, but that librarians may be self-censoring to reduce controversy in their collections.     

Putting the U in carbon capture and storage: rhetorical boundary negotiation within the CCS/CCUS scientific community

This paper examines responses to a framing shift from carbon capture and storage (CCS) to carbon capture, utilization, and storage (CCUS) within science and engineering professionals’ communication. We argue that the framing shift is a breach in the rhetorical boundaries of the CCS professional community that calls forth negotiation through responses that proactively support, resist, or acquiesce. This study offers a heuristic for examining scientific framing in expert-to-expert internal scientific rhetoric. It also contributes to contemporary research on the intersection of rhetoric of science and science, technology, and society; the social dimensions of CCS; energy communication; and applied communicative practices in scientific communities.     

Teachers' schemata for classroom events: The mental scaffolding of teachers' thinking during classroom instruction

Researchers have shown that experts and novices differ in their recall, representation, and analyses of problem situations. This study investigated whether such differences existed between novice and experienced high school teachers in their recall and analyses of problem events during interactive teaching. Experienced and inexperienced teachers (n = 10 in each group) completed cognitive ability tests and were interviewed after viewing three videotaped vignettes of interactive teaching. In contrast to novices, experienced teachers both recalled more classroom events and relied more on procedural knowledge and principles in analyzing classroom events. These differences may indicate that experienced teachers have better developed knowledge structures of “schemata” for classroom teaching than do novice teachers.     

Put Theory Into Practice

Audrey J. Jaeger, Stephany Dunstan, Courtney Thornton, Alyssa B. Rockenbach, Joy G. Gayles, and Karen J. Haley argue that applying our theoretical frameworks in everyday decision making will help us to be more efficient and effective—and they provide a user‐friendly analogy to guide us in this endeavor.     

Tang Paradise Celebrates Ninth Anniversary

Shangyi Festival, also known as the Double Third Festival, is an ancient Chinese festival celebrated on the third day of the third lunar month. On this day, people would go for an outing by the water, picnic and pluck orchids. The festival this year coincides with the 9th anniversary of the Tang Paradise, a site park in the southern suburb of Xi＇an, a historic city of northwest Shaanxi province. The spring outing event entitled ＂En- voy of Spring＂ and the poetry recital for women were launched in the park to celebrate this traditional festival.     

Night of Qujiang: a Show Club with Cultural Richness

The moon-lit night, the dazzling classical- style buildings, the passionate dancers, all these elements contribute to present a gorgeous Night of Qujiang-a show club with cultural richness in the historic city of Xi’an. The Night of Qujiang is located in the heart of Qujiang New Area, a district well     

Assumptions and practices in using digital technologies to teach writing in middle‐level classrooms across Canada

Interviews with 216 Grades 4–8 teachers and observations in 21 classrooms show that computers are widely used to teach writing across Canada. Restricted access to computers plays a role in the frequency and types of interactions that students and teachers have with computers in writing classes. Equally influential are assumptions about writing development and effective teaching practice. Many participating teachers believe that spell checkers hamper students’ spelling development. They view computers as tools to extend and support their teaching of mini‐lessons.