Thirty-four populations of Artemisia sieberi from 10 provinces of Iran were investigated with respect to quantitative characteristics of leaves and seeds. In each habitat, five plants were randomly selected and some branches were harvested for studying leaf characteristics in spring and seed characteristic in autumn. Principle features of climate and soil were studied in each habitat. In order ...

Background—The Iowa Department of Education undertook a study to determine district characteristics that are associated with success on statewide-standardized tests. A district profile was created for each Iowa public school district to determine if any association exists between a particular district’s characteristics and the test scores of 11th grade students. Contextual variables such as soc...

Recent studentcentered teaching approaches in high schools in Shanxi Province have made dramatic changes to the organization of the classroom space and given over the majority of the classroom time to student talk instead of teacher talk. These approaches to student centered teaching are characterized by a high level of systematization and coordination and are focused heavily on efficiently rai...

This study attempts to find out students' expectations from mobile learning (m-learning) applications. The relationship between students' grade levels (freshman, sophomore, junior, senior) and their preferred m-learning application characteristics were analyzed. A questionnaire on students' preferences in m-learning applications was used as the data collection instrument to 78 undergraduate stu...

Data from the United Nations and the International Civil Aviation Organization Information Systems were used as a base for characterizing, classifying and comparing air transport demand and supply features of 156 countries. Relevant data from 1980 were chosen to reflect five sets of characteristics namely, air transport, 50cm-economic status, population demography, geographical and environmenta...