Professional staffing levels and fourth-grade student research in rural schools with high-poverty levels

Rural schools in high-poverty areas are often understaffed. This descriptive phenomenological study examined fourth-grade state research projects in high- poverty rural Iowa schools to reveal the influence of school librarians’ staffing levels on student learning of research skills. To determine evidence of students’ critical literacy, ethical use of information, content learning, and understanding of the inquiry process, researchers analyzed twenty-four student work samples from eight schools, along with students’ responses to questionnaires and school librarians’ responses to surveys. Six (66 percent) student work samples in higher-staffed schools showed higher critical-literacy scores than those in the five lower-staffed schools. Six (of nine) students in higher-staffed schools garnered higher scores in ethical use of information. Content learning in all but one school was mainly factual. At the end of the project fourteen students (58 percent) posed new inquiry questions that were either conceptual or provocative

Professional staffing levels and fourth-grade student research in rural schools with high-poverty levels

Rural schools in high-poverty areas are often understaffed. This descriptive phenomenological study examined fourth-grade state research projects in high- poverty rural Iowa schools to reveal the influence of school librarians’ staffing levels on student learning of research skills. To determine evidence of students’ critical literacy, ethical use of information, content learning, and understanding of the inquiry process, researchers analyzed twenty-four student work samples from eight schools, along with students’ responses to questionnaires and school librarians’ responses to surveys. Six (66 percent) student work samples in higher-staffed schools showed higher critical-literacy scores than those in the five lower-staffed schools. Six (of nine) students in higher-staffed schools garnered higher scores in ethical use of information. Content learning in all but one school was mainly factual. At the end of the project fourteen students (58 percent) posed new inquiry questions that were either conceptual or provocative

The activity of the histone chaperone yeast Asf1 in the assembly and disassembly of histone H3/H4–DNA complexes

The deposition of the histones H3/H4 onto DNA to give the tetrasome intermediate and the displacement of H3/H4 from DNA are thought to be the first and the last steps in nucleosome assembly and disassembly, respectively. Anti-silencing function 1 (Asf1) is a chaperone of the H3/H4 dimer that functions in both of these processes. However, little is known about the thermodynamics of chaperone–histone interactions or the direct role of Asf1 in the formation or disassembly of histone–DNA complexes. Here, we show that Saccharomyces cerevisiae Asf1 shields H3/H4 from unfavorable DNA interactions and aids the formation of favorable histone–DNA interactions through the formation of disomes. However, Asf1 was unable to disengage histones from DNA for tetrasomes formed with H3/H4 and strong nucleosome positioning DNA sequences or tetrasomes weakened by mutant (H3K56Q/H4) histones or non-positioning DNA sequences. Furthermore, Asf1 did not associate with preformed tetrasomes. These results are consistent with the measured affinity of Asf1 for H3/H4 dimers of 2.5 nM, which is weaker than the association of H3/H4 for DNA. These studies support a mechanism by which Asf1 aids H3/H4 deposition onto DNA but suggest that additional factors or post-translational modifications are required for Asf1 to remove H3/H4 from tetrasome intermediates in chromatin

Enhancing Teaching and Learning: A Leadership Guide for School Libraries

This new edition of a classic shows how to take a proactive role in shaping instruction by learning how to develop and implement a library media program and integrate it into the total educational experience. Revised and updated, Donham\u27s third edition covers all aspects of the school system: students, curriculum and instruction, principals, district administration, and the community. It demonstrates how to interact and collaborate in order to integrate the school library media program throughout these environments. This new edition offers -- Real-life examples of issues in school librarianship -- Current statistics and research results on early learning, child poverty, and other topics -- A new chapter on the virtual school library -- Expanded coverage of nonfiction and complex texts Readers will benefit from this complete coverage of the school environment--common staff structures, budget issues, and more. -- Provided by publisherhttps://scholarworks.uni.edu/facbook/1012/thumbnail.jp

Enhancing teaching and learning : a leadership guide for student library media specialist

Includes bibliographical reference and index.xiii, 337 p.; 23 cm

Enhancing teaching and learning : a leadership guide for student library media specialist

Includes bibliographical reference and index.xiii, 337 p.; 23 cm

Code Switching and code mixing on Korean Television Music Show after School Club

viii, 46 hlm,; ilus,; 30 cm

Code Switching and code mixing on Korean Television Music Show after School Club

viii, 46 hlm,; ilus,; 30 cm