A transaction-consistent global checkpoint of a database records a state of the database which reflects the effect of only completed transactions and not the results of any partially executed transactions. This thesis establishes the necessary and sufficient conditions for a checkpoint of a data item (or the checkpoints of a set of data items) to…

The collection and dissemination of data on human and nonhuman organisms has become a central feature of 21st-century biology and has been endorsed by funding agencies in the United States and Europe as crucial to translating biological research into therapeutic and agricultural innovation. Large molecular data sets, often referred to as "big…

In Texas, and some other states, there is a documented shortage of physics teachers, in terms of both number and qualifications. The shortage in Texas is due as much to teachers leaving the field (attrition) as to a lack of teachers entering. There are efforts under way to prepare more and better-qualified physics teachers who will stay in the…

Purpose: The purpose of this paper is to develop a theoretical model of the determinants of workplace deviant behaviour among support personnel in Malaysian Public Service organisations. Design/methodology/approach: This study is based on reviews of past studies on workplace deviant behaviour. To conduct the literature review, several keywords…

This systematic review aimed to establish the current knowledge about brain structure and executive function (EF) in children with cerebral palsy (CP). Five databases were searched (up till July 2012). Six articles met the inclusion criteria, all included structural brain imaging though no functional brain imaging. Study quality was assessed using…

Individual voices are not uniformly similar to others, even when factoring out speaker characteristics such as sex, age, dialect, and so on. Some speakers share common features and can cohere into groups based on gross vocal similarity but, to date, no attempt has been made to describe these features systematically or to generate a taxonomy based…

The purpose of the study was to address a gap in the scholarly literature about one of the factors related to the Global Digital Divide by expanding the body of generalizable knowledge about the relationship between national culture attitudes about information and communications technology (ICT) acceptance and use (A&U) and national ICT use…

This supplement contains documentation on the explicit and implicit stratification variables included in the PIRLS 2011 data files. The explicit strata are smaller sampling frames, created from the national sampling frames, from which national samples of schools were drawn. The implicit strata are nested within the explicit strata, and were used…

Objective: This research identifies effective and ineffective interventions for reducing barriers to the uptake of eye care services in developing countries. Design: Systematic literature review. Setting: Only research studies done in developing countries were included. Method: The review is restricted to English-language articles published…

Objective: This article aims to review the previously published literature on the social and environmental factors which influence children (aged 3-5 years) to be obese/overweight and the accuracy of parental perceptions. Obesity levels are on the increase in today's society and habits are being passed from parents to children, with family…

Objective: The objective of this study was to synthesise and describe adherence to intervention in published studies of supported self-care for depression or anxiety, and to identify participant characteristics associated with higher adherence. Methods: We searched the databases EMBASE, MEDLINE, CINAHL, and PSYCINFO for the period from January…

The Center on Enhancing Early Learning Outcomes (CEELO) was asked to review current information on how states are preparing principals to supervise and support early childhood teachers in schools and districts. This document summarizes what is known about principal licensing requirements and professional development in early childhood pedagogy and…

Blended learning models that combine face-to-face and online learning are of great importance in modern higher education. However, their development should be in line with the recent changes in e-learning that emphasize a student-centered approach and use tools available on the Web to support the learning process. This paper presents research on…

Educators in all disciplines are searching for effective educational technologies that help students learn. One technology that has evolved is the online homework management system. The online homework management system permits professors to use the Internet to assign homework problems that students can complete online. Since this system is…

What was the role of imperfect local information in the growth, gender gap, and STEM (Science, Technology, Engineering and Math) major selection of early 20th century American universities? In order to examine pre-1950 American higher education, this study constructs four rich panel datasets covering most students, high school teachers, and…