���绷����ѧ��ͼ���һ��һ�������֮̽��

提出学术图书馆与其服务对象之间一对一关系的服务策略 ,并就该服务方式的可行性、实施过程中的主要步骤以及有关计算机网络通讯技术在一对一服务中的应用问题进行阐述与探讨。     

Impaired eye tracking is associated with symptom severity but not dynamic postural control in adolescents following concussion

Purpose:The purpose of the study was to(1)examine the relationship between self-reported symptoms and concussion-related eye tracking impairments,and(2)compare gait performance between(a)adolescents with a concussion who have normal eye tracking,(b)adolescents with a concussion who have abnormal eye tracking,and(c)healthy controls.Methods:A total of 30 concussed participants(age:14.4±2.2 years,mean±SD,50%female)and 30 controls(age:14.2±2.2 years,47%female)completed eye tracking and gait assessments.The BOX score is a metric of pupillary disconjugacy,with scores<10 classified as normal and≥10 abnormal.Symptoms were collected using the Post-Concussion Symptom Scale(PCSS),and gait speed was measured with triaxial inertial measurement units.We conducted a linear regression to examine the relationship between PCSS and BOX scores and a two-way mixed effects analysis of variance to examine the effect of group(abnormal BOX,normal BOX,and healthy control)on single-and dual-task gait speed.Results:There was a significant association between total PCSS score and BOX score in the concussion group(β=0.16,p=0.004,95%confidence interval(95%CI):0.06‒0.27),but not in the control group(β=0.21,p=0.08,95%CI:
0.03 to 0.45).There were no significant associations between PCSS symptom profiles and BOX scores in the concussion or control groups.There were also no significant differences in singletask(Abnormal:1.00±0.14 m/s;Normal:1.11§0.21 m/s;Healthy:1.14±0.18 m/s;p=0.08)or dual-task(Abnormal:0.77±0.15 m/s;Normal:0.84±0.21 m/s;Healthy:0.90±0.18 m/s;p=0.16)gait speed.Conclusion:The concussed group with impaired eye tracking reported higher total symptom severity,as well as worse symptom severity across the 5 PCSS symptom domain profiles.However,eye tracking deficits did not appear to be driven by any particular symptom domain.While not statistically significant,the slower gait speeds in those with abnormal BOX scores may still be clinically relevant since gait-related impairments may persist beyond clinical recovery.     

An Immersion Approach to Teaching Food Science

ABSTRACT: Introductory Food Science courses are most often lecture-based courses, but some include limited laboratory experiences. As described in this paper, the course minimizes lecture and maximizes experiential or "hands-on" learning by using an immersion approach to teach basic concepts of food science. Additionally, it requires students to work in groups to accomplish tasks, thus providing valuable experience in working cooperatively. The course has been taught in this basic manner at Ohio State for 10 y. Analysis of pre-test and post-test results shows that none of the students pass the pre-test and 92% pass the post-test. In 2002, the average increase in scores from the pre-test to the post-test was 65.7 ± 14.7 (n = 22).     

Entertainment We Watch and Entertainment We Appreciate: Patterns of Motion Picture Consumption and Acclaim Over Three Decades

An analysis of 582 film titles spanning the years from 1980 to 2010 was conducted to examine the attributes and characteristics that predicted both viewership (e.g., box-office revenues) and critical acclaim (e.g., awards, audience ratings). Overall, viewership was highest for action/adventure films and lowest for dramas. In contrast, acclaim was highest for more dramatic fare, and for films that featured dark, contemplative, and emotional themes. The results are discussed in terms of the entertainment gratifications reflecting both enjoyment and appreciation.     

Prevention: Necessary But Insufficient? A 2-Year Follow-Up of an Effective First-Grade Mathematics Intervention

We present first-grade, second-grade, and third-grade impacts for a first-grade intervention targeting the conceptual and procedural bases that support arithmetic. At-risk students (average age at pretest = 6.5) were randomly assigned to three conditions: a control group (n = 224) and two variants of the intervention (same conceptual instruction but different forms of practice: speeded [n = 211] vs. nonspeeded [n = 204]). Impacts on all first-grade content outcomes were significant and positive, but no follow-up impacts were significant. Many intervention children achieved average mathematics achievement at the end of third grade, and prior math and reading assessment performance predicted which students will require sustained intervention. Finally, projecting impacts 2 years later based on nonexperimental estimates of effects of first-grade math skills overestimates long-term intervention effects.     

Equity Traps Redux: Inequitable Access to Foreign Language Courses for African American High School Students

Although much of the current educational research literature on achievement gaps has focused on core curricular areas in public schools, few have focused on racially identifiable gaps in non-core areas such as high school foreign languages. These achievement, and thus advancement, gaps often result in the under-representation of students of color in higher level foreign language classes. This can have long-range negative consequences for students, such as lacking the foreign language credits needed for admission into major universities. Thus, in this qualitative study, we researched the perceptions of teachers, counselors, and school leaders at a racially diverse urban high school in central Texas concerning the enrollment, achievement, and advancement of African American students in high school foreign language courses. The results indicate that equity traps—deficit views, racial erasure, and paralogical beliefs and behaviors—advanced over a decade ago (McKenzie &; Scheurich, 2004 McKenzie, K. B., &; Scheurich, J. J. (2004). Equity traps: A useful construct for preparing principals to lead schools that are successful with racially diverse students. Educational Administration Quarterly, 40(5), 601–632.[Crossref], [Web of Science ®] , [Google Scholar]) are continuing and even thriving among teachers, counselors, and school leaders in public schools. These equity traps contribute to the foreign language achievement gap, resulting in diminished educational opportunities for African American students. Moreover, we propose that an additional equity trap is at play—organizational constraints—which are the structural obstacles that serve to abet and perpetuate the negative beliefs, behaviors, attitudes, and assumptions exposed in the original equity traps. We conclude this article with recommendations for policy makers and practitioners and offer direction for future research.     

Power imbalance and anticipation of conflict resolution: Positive and negative attributes of perceptual recall

This study investigated the impact of power imbalance on the relationship between perceived communication behaviors and the anticipation of conflict resolution. The subjects were 120 students who responded to a survey questionnaire in which they evaluated a conflict in which they were engaged. They were divided into three groups (high power, low power, equal power) based upon their responses to the survey. Correlational analysis indicated that when the participants in the conflict were of equal power, anticipated resolution was related to perceptions of both solution‐oriented and control behavior. However, in cases of power imbalance, solution‐oriented behavior was the only significant cue identified, and it was used by both low‐and high‐power participants.     

Evaluating a Multidimensional Reading Comprehension Program and Reconsidering the Lowly Reputation of Tests of Near‐Transfer

We conducted a 14‐week experimental study of 2 versions of a relatively comprehensive RC intervention that involved 50 classroom teachers, 15 tutors, and 116 children drawn in equal proportions from grades 3 and 5 in 13 schools in a large urban school district. Students were randomly assigned in equal numbers to the two tutoring conditions and a control group. Results indicated that students in the two tutored groups tended to perform comparably on all tests and to outperform controls (more so in grade 5 than grade 3) on near‐transfer but not far‐transfer measures of RC. This differential pattern of program effects for near‐ versus far‐transfer measures raises questions about how tests of near‐transfer and far‐transfer are conventionally understood.     

The State of Criminal Justice Bachelor’s Degree Programs in the United States: Institutional,Departmental, and Curricula Features

Bachelor’s degrees in criminal justice (BCJ) now constitute one of the ten most awarded undergraduate degrees in this country, yet little attention has been paid recently to the institutional, departmental, or curricular aspects of these programs. This study used primary and secondary data collected from the population (N = 670) of US colleges and universities offering BCJ degrees during the 2015–2016 academic year to describe and assess the state of these programs. Results indicated BCJ programs are typically found at relatively small, residential, non-selective, private, sectarian, master’s-level institutions located in urban areas; the programs are housed in smaller departments labeled “criminal justice” located in academic units other than colleges/schools of arts & science; and BCJ curricula vary in total, required, and elective hours for the major, required courses in the major, and do not offer concentrations. Observations about the current state of BCJ programs are made as are recommendations for future research.