Inquiry Science: The Gateway to English Language Proficiency

This paper presents findings from a 4-year project that developed and implemented a blended inquiry science and English Language Development (ELD) program in a large urban California school district. The sample included over 2,000 students in Kindergarten through 5th grade. Participating students’ English and science achievement was compared to a similar group of students who were using the district’s established English language development curriculum. Student performance on statemandated English and science assessments were analyzed using Mann–Whitney U tests for overall performance and by number of years of treatment. Modest but statistically significant improvement was found for students who participated in the blended program. Results from this study suggest that restricting instructional minutes for science to provide additional time for ELD and English language arts may be unnecessary. Rather, allowing consistent time for science instruction that incorporates ELD instruction along with inquiry science experiences may provide the authentic and purposeful context students need to develop new language without restricting access to science content.     

A FORGE OF CONSENSUS

The Spanish transition to democracy constituted an exceptional journalistic period which started with the death of the dictator Franco in 1975 and finished in 1978, the year in which a new democratic Constitution, currently in force, was approved by referendum. During those years, the Spanish political system changed radically from a dictatorship to a full democracy similar to the democracies enjoyed by Western European countries. This article proves the hypothesis that the majority of newspapers supported the main guidelines of political reform and the strategy of consensus led firstly by the francoist reformist elite and by the opposition political parties afterwards. The research method is a content analysis focused on the introduction of democratic values in newspaper editorials and applied to twelve newspaper titles which covered the ideological spectrum within the Spanish journalistic scene. This piece of research could be likewise considered as a contribution to the particular histories of the analysed dailies during those critical years.     

Ritual Television

As in other southern European countries, television was introduced in Portugal in the second half of the 1950s through the founding of a public broadcasting station. Reception was implemented very gradually over the 1960s, by conspicuously developing collective ways of viewing. In this text, we draw on oral history in order to retrace relevant habits, events and content especially for women, a particular type of audience in the markedly patriarchal context of the Estado Novo dictatorship. Within the context of collective reception of early television in Portugal, we highlight a type of experience that was particularly significant for some female audiences: the reception of Catholic transmissions. The concepts of hegemony, ritual and everyday practices assist in the analysis of such memories. These conspicuous television rituals seemed to regulate female practices, but they could also offer women some opportunities for new experiences.     

An Investigation of Student Response to a Potential Tuition Cap Increase at Casper College

Wyoming Community College Commission policy currently states any student enrolled for more than 12 credit hours will be charged tuition for only 12 credit hours. This policy is referred to as the tuition cap. In November 2010, the commission discussed increasing the tuition cap to 15 credits. An increase from 12 to 15 credits would have represented a 25% increase in tuition for students enrolled for 15 or more credits. Casper College president Dr. Walter Nolte commissioned a study to examine the impact such an increase would have on Casper College and its students. A survey instrument was designed to determine if students carrying more than 12 credit hours would reduce their enrollment credits and what sources of funding they would seek to defray the increased cost. Using a multistage sampling design, a sample of 67 Casper College course sections was selected to respond to the survey. The data were analyzed with logistic regression models, and the estimates were adjusted using sampling weights and a finite population correction. Analysis indicated that 42% of Casper College students would reduce their credit hours by an average of 3.3 credits. Approximately 58% of students would seek additional scholarships and 63% would seek increased work hours. The results of the study were presented to the Wyoming Community College Commission on October 28, 2011. In December 2011, the Commission announced a decision not to increase the tuition cap.     

Response–food delay gradients for lever pressing and schedule-induced licking in rats

Eight food-deprived Wistar rats developed stable patterns of lever pressing and licking when exposed to a fixed-time 30-s schedule of food pellet presentation. The rats were trained to lever press by presenting the lever 10 s before the programmed food delivery, with the food pellet being delivered immediately upon a lever press. The operant contingency was then removed and the lever was inserted through the entire interfood interval, being withdrawn with food delivery and reinserted 2 s later. On successive phases of the study, a protective contingency postponed food delivery if responses (lever presses or licks) occurred within the last 1, 2, 5, 10, 20, or 25 s of the interfood interval. Lever pressing was reduced at much shorter response–food delays than those that reduced licking. These results demonstrate that reinforcement contributes to the maintenance of different response patterns on periodic schedules, and that different responses are differentially sensitive to delays.     

EXPLORING TEACHERS’ KNOWLEDGE AND PERCEPTIONS ACROSS MATHEMATICS AND SCIENCE THROUGH CONTENT-RICH LEARNING EXPERIENCES IN A PROFESSIONAL DEVELOPMENT SETTING

This paper examines upper elementary and middle school teachers’ learning of mathematics and science content, how their perceptions of their disciplines and learning of that discipline developed through content-rich learning experiences, and the differences and commonalities of the teachers’ learning experiences relative to content domain. This work was situated within a larger professional development (PD) program that had multiple, long-term components. Participants’ growth occurred in 4 primary areas: knowledge of content, perceptions of the discipline, perceptions about the learning of the discipline, and perceptions regarding how students learn content. Findings suggest that when embedded within an effective professional development context, content can be a critical vehicle through which change can be made in teachers’ understandings and perceptions of mathematics and science. When participants in our study were able to move beyond their internal conflicts and misunderstandings, they could expand their knowledge and perceptions of content and finally bridge to re-conceptualize how to teach that content. These findings further indicate that although teachers involved in both mathematics and science can benefit from similar overall PD structures, there are some unique challenges that need to be addressed for each particular discipline group. This study contributes to what we understand about teacher learning and change, as well as commonalities and differences between teachers’ learning of mathematics and science.     

A spectral analysis of team dynamics and tactics in Brazilian football

Abstract

The purposes of this study were to characterise the total space covered and the distances between players within teams over ten Brazilian First Division Championship matches. Filmed recordings, combined with a tracking system, were used to obtain the trajectories of the players (n = 277), before and after half-time. The team surface area (the area of the convex hull formed by the positions of the players) and spread (the Frobenius norm of the distance-between-player matrix) were calculated as functions of time. A Fast Fourier Transform (FFT) was applied to each time series. The median frequency was then calculated. The results of the surface area time series median frequencies for the first half (0.63 ± 0.10 cycles · min^?1) were significantly greater (P < 0.01) than the second-half values (0.47 ± 0.14 cycles · min^?1). Similarly, the spread variable median frequencies for the first half (0.60 ± 0.14 cycles · min^?1) were significantly greater (P < 0.01) than the second-half values (0.46 ± 0.16 cycles · min^?1). The median frequencies allowed the characterisation of the time series oscillations that represent the speed at which players distribute and then compact their team formation during a match. This analysis can provide insights that allow coaches to better control the team organisation on the pitch.     

Characteristics of extracurricular physical activity and cognitive performance in adolescents. The AVENA study

Abstract

The aim of this report was to examine the associations between some characteristics (i.e., structure and number) of extracurricular physical activity (EPA) and cognitive performance in adolescents. A total of 1662 adolescents (880 girls; 13.0–18.5 years) from 5 Spanish cities (Granada, Madrid, Murcia, Santander and Zaragoza) were included in this study. Structure (organised and non-organised) and number of EPAs, and participation at vigorous intensity during EPA were self-reported. Cognitive performance (verbal, numeric and reasoning abilities, and an overall score) was measured with the “SRA-Test of Educational Ability”. Results showed that vigorous EPA was positively associated with all cognitive variables. Adolescents who practiced an organised EPA had higher scores in 3 of the 4 cognitive variables than those who practiced a non-organised EPA (all P < 0.05). Likewise, the group who participated in more than one EPA had higher cognitive performance in all variables than the group who participated in only one EPA (all P < 0.05). Regardless of potential confounder variables, including vigorous EPA, both structure and number of EPAs were each other independently associated with cognitive performance. Therefore, structure and number of EPAs may positively influence cognitive performance in adolescents. Participating in multiple, organised EPA may have benefits for cognitive performance.     

A comparison of time-motion and technical–tactical variables between age groups of female judo matches

Abstract

The aim of the study was to verify differences between age groups of female judo matches in time-motion and technical–tactical analysis. The sample was composed of pre-cadet (13–14 years, n = 148), cadet (15–16 years, n = 228), junior (17–19 years, n = 104) and senior (>20 years, n = 237) groups. The time-motion indicators consisted of total combat time, standing combat time, displacement without contact, gripping time, total time of techniques, groundwork combat time and pause time, per match and by each combat/pause cycle. Technical and tactical variables were also collected. The one-way analysis of variance and a post hoc test were conducted, P ≤ 0.05. Cadets, with a median of 7 (2, 12), had a number of combat/pause cycles different from junior, with 3 (1, 8.5). Regarding time-motion per match and per cycle, senior had longer total combat time, standing combat time and gripping time than other groups. Senior presented lower frequency of leg techniques than pre-cadet, cadet and junior. Time-motion and technical–tactical variables effects in female judo athletes emphasise the difference between seniors and other groups.