What facilitates and impedes collaborative work during higher education software implementation projects?

Implementations of new or major upgrades of existing student information systems require incorporation of new paradigms and the exchange of familiar routines for new methods. As a result, implementations are almost always time consuming and expensive. Many people in the field of information technology have identified some of the challenges faced by campuses that attempt to modify their student services. The work of Gardner et al. (Good work: When excellence and ethics meet. Basic Books, New York, 2001) was used as a model to examine the experiences of those involved in implementations and to explore how the values of staff members influence the experience of change. Analysis of student information system implementations at 10 institutions of higher education was conducted. Over a 2-month period, data were gathered from 74 people through a combination of online surveying, telephone interviews, and completion of a Q-sort instrument based on the published instrumentation of Gardner et al. (2001). Statistical analyses of the online survey and Q-sort results and use of the SPSS Text Analysis for Surveys 2.0 User’s Guide (SPSS Inc., Chicago, 2006) revealed trends that highlighted the overall perceived importance of communication, collaboration, and problem solving for implementation success. Analysis also highlighted campus members’ satisfaction level with the implementation process and how their satisfaction varied depending on if the implementations were completed or still “in process.” Discussion includes pragmatic recommendations for future implementations.     

Contextual influences on Latino adolescent ethnic identity and academic outcomes

This study examined the association between 3 components of ethnic identity (exploration, resolution, and affirmation) and factors related to family, neighborhood, and individual characteristics. The purpose was to identity factors that are positively associated with adolescent ethnic identity among a sample of 187 Latino adolescents with a mean age of 14.61. The findings suggested that family ethnic socialization was directly associated with exploration and resolution, but not ethnic affirmation. Analyses with moderator variables suggested that associations between family ethnic socialization and ethnic affirmation varied based on parental behaviors and neighborhood characteristics. The results also suggested that ethnic affirmation, but not exploration or resolution, was positively associated with teacher reports of school performance.     

The response to intervention of English language learners at risk for reading problems

The response to intervention (RTI) of English language learners identified as at risk for reading difficulties in the fall of first grade was examined at the end of first grade and at the end of second grade. Students at risk for reading problems were randomly assigned to intervention or control groups. Intervention students received supplemental reading intervention daily for 50 minutes in small groups from October to April. Students in the comparison condition received the school's existing instructional program for struggling readers. Criteria were established to determine adequate RTI at the end of first grade and at the end of second grade. The results indicated that more students who participated in the first-grade intervention in either Spanish or English met the established RTI standards than students who did not, and this finding was maintained through the end of second grade.     

A synthesis of spelling and reading interventions and their effects on the spelling outcomes of students with LD

Previous research studies examining the effects of spelling and reading interventions on the spelling outcomes of students with learning disabilities (LD) are synthesized. An extensive search of the professional literature between 1995 and 2003 yielded a total of 19 intervention studies that provided spelling and reading interventions to students with LD and measured spelling outcomes. Findings revealed that spelling outcomes were consistently improved following spelling interventions that included explicit instruction with multiple practice opportunities and immediate corrective feedback after the word was misspelled. Furthermore, evidence from spelling interventions that employed assistive technology aimed at spelling in written compositions indicated positive effects on spelling outcomes.     

Tuning bubbly structures in microchannels

Foams have many useful applications that arise from the structure and size distribution of the bubbles within them. Microfluidics allows for the rapid formation of uniform bubbles, where bubble size and volume fraction are functions of the input gas pressure, liquid flow rate, and device geometry. After formation, the microchannel confines the bubbles and determines the resulting foam structure. Bubbly structures can vary from a single row ("dripping"), to multiple rows ("alternating"), to densely packed bubbles ("bamboo" and dry foams). We show that each configuration arises in a distinct region of the operating space defined by bubble volume and volume fraction. We describe the boundaries between these regions using geometric arguments and show that the boundaries are functions of the channel aspect ratio. We compare these geometric arguments with foam structures observed in experiments using flow-focusing, T-junction, and co-flow designs to generate stable nitrogen bubbles in aqueous surfactant solution and stable droplets in oil containing dissolved surfactant. The outcome of this work is a set of design parameters that can be used to achieve desired foam structures as a function of device geometry and experimental control parameters.     

How do pre-kindergarteners spend their time? Gender,ethnicity, and income as predictors of experiences in pre-kindergarten classrooms

The current paper considers how children spend their time in state-funded pre-kindergarten programs and how time use relates to ethnicity, gender, and family income, based on the assumption that how time is spent in pre-kindergarten is relevant for the programs’ success in narrowing achievement gaps. Classroom observations of 2061 children in 652 pre-k programs in 11 states were analyzed. Findings indicated that the pre-kindergarten day was roughly equally divided among free choice, teacher-assigned activities, and meals/routines. Children spent much of their time in language/literacy, social studies, and art, and less time in math and gross motor activities. Much of the pre-k day was spent in ‘no coded learning activity.’ Children in classes with lower proportions of Latino and African American children and higher average income-to-need ratios were generally engaged in richer and more stimulating experiences. The child-level variables of ethnicity and income were generally unrelated to how children spent their time, above and beyond the effects of classroom-level ethnicity and income. There were generally small, but significant gender differences – always in the gender-stereotyped direction – in how time was spent, especially during free choice time.     

The relative effects of group size on reading progress of older students with reading difficulties

This study reports findings on the relative effects from a yearlong secondary intervention contrasting large-group, small-group, and school-provided interventions emphasizing word study, vocabulary development, fluency, and comprehension with seventh- and eighth-graders with reading difficulties. Findings indicate that few statistically significant results or clinically significant gains were associated with group size or intervention. Findings also indicate that a significant acceleration of reading outcomes for seventh- and eighth-graders from high-poverty schools is unlikely to result from a 50 min daily class. Instead, the findings indicate, achieving this outcome will require more comprehensive models including more extensive intervention (e.g., more time, even smaller groups), interventions that are longer in duration (multiple years), and interventions that vary in emphasis based on specific students’ needs (e.g., increased focus on comprehension or word study).     

敦煌中国星空:综合研究迄今发现最古老的星图(下)

本文主要分析斯坦因1907年在敦煌所得的星图手卷,认为此星图是用精确的数学方式绘制的。推断星图绘制于公元649—684年间,而非先前推断的公元940年。并与后世的星图做了比较。     

Intervention Provided to Linguistically Diverse Middle School Students with Severe Reading Difficulties

This study investigated the effectiveness of a multicomponent reading intervention implemented with middle school students with severe reading difficulties, all of whom had received remedial and/or special education for several years with minimal response to intervention. Participants were 38 students in grades 6-8 who had severe deficits in word reading, reading fluency, and reading comprehension. Most were Spanish-speaking English language learners (ELLs) with identified disabilities. Nearly all demonstrated severely limited oral vocabularies in English and, for ELLs, in both English and Spanish. Students were randomly assigned to receive the research intervention (n = 20) or typical instruction provided in their school's remedial reading or special education classes (n = 18). Students in the treatment group received daily explicit and systematic small-group intervention for 40 minutes over 13 weeks, consisting of a modified version of a phonics-based remedial program augmented with English as a Second Language practices and instruction in vocabulary, fluency, and comprehension strategies. Results indicated that treatment students did not demonstrate significantly higher outcomes in word recognition, comprehension, or fluency than students who received the school's typical instruction and that neither group demonstrated significant growth over the course of the study. Significant correlations were found between scores on teachers' ratings of students' social skills and problem behaviors and posttest decoding and spelling scores, and between English oral vocabulary scores and scores in word identification and comprehension. The researchers hypothesize that middle school students with the most severe reading difficulties, particularly those who are ELLs and those with limited oral vocabularies, may require intervention of considerably greater intensity than that provided in this study. Further research directly addressing features of effective remediation for these students is needed.