Why does language matter to education?

Discussions concerning ??literacy?? make it clear that the domain of language has become a focal point for educational policy. In such discussions, language is primarily treated as a basic communication tool. This paper examines, from a philosophical perspective, how appropriate this approach to language is. The philosophical validity of this dominant tendency is analyzed with reference to the work of Wilhelm von Humboldt, Nietzsche, and Wittgenstein. Once the stable relationship conceived by Humboldt among the individual, language, and the world is lost, education displays its more distinctive features, which we see clearly in Nietzsche and Wittgenstein. Both of these philosophers focused their investigation on the rhetorical or performative aspects of language. In contrast to Nietzsche, however, Wittgenstein did not abandon the hope of finding in language the function of showing reality, even if what is said and what is shown remain incongruent. This perspective in Wittgenstein is salient against the dominant tendency, in which the mediating function of language is sought in the dimension of conformity and usefulness.     

Scandalous equivocation: a note on the politics of queer self‐naming

Abstract

This paper discusses the political and theoretical implications of the various performances of queer self‐naming (or the refusal of which) in the face of the ongoing backlash against unconventional or non‐normative genders and sexualities. It argues that, instead of a hasty call for the discarding of identity terms or naïve recourse to them, we could keep (re)using the signs without endorsing their normative meanings and line of demarcation. Through analysing some of the feminist counter‐discourses against the backlash, arguments for indigenous Japanese queerness, and a performance by a Japanese lesbian artist, Ito Tari, it shows that the queer gesture of equivocally assuming the scandalous ‘name’ may be one of the few effective survival strategies for those who have already been scandalously (mis)named.     

Muscle cross-sectional areas and performance power of limbs and trunk in the rowing motion

Although it is clear that rowers have a large muscle mass, their distribution of muscle mass and which of the main motions in rowing mediates muscle hypertrophy in each body part are unclear. We examine the relationships between partial motion power in rowing and muscle cross-sectional area of the thigh, lower back, and upper arms. Sixty young rowers (39 males and 21 females) participated in the study. Joint positions and forces were measured by video cameras and rowing ergometer software, respectively. One-dimensional motion analysis was performed to calculate the power of leg drive, trunk swing, and arm pull motions. Muscle cross-sectional areas were measured using magnetic resonance imaging. Multiple regression analyses were carried out to determine the association of different muscle cross-sectional areas with partial motion power. The anterior thigh best explained the power demonstrated by leg drive (r2 = 0.508), the posterior thigh and lower back combined best explained the power demonstrated by the trunk swing (r2 = 0.493), and the elbow extensors best explained the power demonstrated by the arm pull (r2 = 0.195). Other correlations, such as arm muscles with leg drive power (r2 = 0.424) and anterior thigh with trunk swing power (r2 = 0.33 5), were also significant. All muscle cross-sectional areas were associated with rowing performance either through the production of power or by transmitting work. The results imply that rowing motion requires a well-balanced distribution of muscle mass throughout the body.     

Different types of focus: Caregiver–child interaction and changes in preschool children’s attention in two cultures

Social contexts shape the development of attention; however, little is known about joint attention beyond infancy. This study employed behavioral and eye-tracking measurements to investigate cultural variations in how caregivers direct 3- to 4-year-old children's attention and subsequent changes in children's attention to objects and contextual backgrounds in the United States (predominantly non-Hispanic Whites) and Japan (N = 60 mother-child dyads, 29 girls, 31 boys). The findings revealed that caregivers directed children's attention to culturally sensitive information, and significant cross-cultural differences in attention emerged after caregiver–child interaction, with Japanese children shifting their attention to the backgrounds. Results provide new insights into the role of social interaction and cultural diversity in the development of attention.     

教育不能只为争第一

有一些孩子非常在意“第一”．如果没争到第一就会生气或者哭闹,并产生恐慌和不安。对于教师来说,要分清“第一”是对排名的偏执,还是对场所的偏执。     

Effect of countermovement on elbow joint extension power-load characteristics

The aim of the present study was to examine elbow joint extension power-load characteristics with and without a countermovement. Eight male participants performed maximal elbow extensions with and without a countermovement against different loads (0, 2.5, 5.0, 7.5, 10.0, 12.5, and 15.0 kg). Electromyographic activity of the lateral and long heads of the triceps brachii and the biceps brachii muscles was recorded. The average joint power in the concentric phase was significantly enhanced in the countermovement condition at all loads except for 0 kg. The optimal load for the maximal joint power was greater in the countermovement (7.5 kg) than in the no countermovement condition (5.0 kg). Electromyographic activity was unchanged over the intensities and conditions. Our results suggest that the optimal load for the maximal joint power depends on the type of action (i.e. with or without a counter-movement), and that the enhanced joint power in the countermovement condition is due primarily to the storage and utilization of elastic energy.     

Novel mathematical model to estimate ball impact force in soccer

To assess ball impact force during soccer kicking is important to quantify from both performance and chronic injury prevention perspectives. We aimed to verify the appropriateness of previous models used to estimate ball impact force and to propose an improved model to better capture the time history of ball impact force. A soccer ball was fired directly onto a force platform (10 kHz) at five realistic kicking ball velocities and ball behaviour was captured by a high-speed camera (5,000 Hz). The time history of ball impact force was estimated using three existing models and two new models. A new mathematical model that took into account a rapid change in ball surface area and heterogeneous ball deformation showed a distinctive advantage to estimate the peak forces and its occurrence times and to reproduce time history of ball impact forces more precisely, thereby reinforcing the possible mechanics of ‘footballer’s ankle’. Ball impact time was also systematically shortened when ball velocity increases in contrast to practical understanding for producing faster ball velocity, however, the aspect of ball contact time must be considered carefully from practical point of view.     

Segmental dynamics of soccer instep kicking with the preferred and non-preferred leg

Abstract

Detailed time-series of the resultant joint moments and segmental interactions during soccer instep kicking were compared between the preferred and non-preferred kicking leg. The kicking motions of both legs were captured for five highly skilled players using a three-dimensional cinematographic technique at 200 Hz. The resultant joint moment (muscle moment) and moment due to segmental interactions (interaction moment) were computed using a two-link kinetic chain model composed of the thigh and lower leg (including shank and foot). The mechanical functioning of the muscle and interaction moments during kicking were clearly illustrated. Significantly greater ball velocity (32.1 vs. 27.1 m · s^?1), shank angular velocity (39.4 vs. 31.8 rad · s^?1) and final foot velocity (22.7 vs. 19.6 m · s^?1) were observed for the preferred leg. The preferred leg showed a significantly greater knee muscle moment (129.9 N · m) than the non-preferred leg (93.5 N · m), while no substantial differences were found for the interaction moment between the two legs (79.3 vs. 55.7 N · m). These results indicate that the highly skilled soccer players achieved a well-coordinated inter-segmental motion for both the preferred and non-preferred leg. The faster leg swing observed for the preferred leg was most likely the result of the larger muscle moment.     

The Pendulum of Reform: Educational Change in Japan from the 1990s Onwards

The purpose of this paper is to sketch thecontexts, nature and actual impacts of currenteducational reforms in Japan. A brief overviewis provided of the basic characteristics of theJapanese education system and trends ineducational reforms since the 1990s. Focusingon curriculum and teaching in primary andsecondary education, the actual impact of theseeducational reforms upon schools is examined. The basic character of present day educationalreforms in Japan may be referred to as educational disarmament, since the emphasisis on considerably loosening up the system interms of reducing curriculum content and thenumber of weekly hours of schooling. This iscontributing to making the educational climateof Japanese schools much milder than before,and is said to have contributed to a loweringof pupil's educational achievement and toeducational opportunities among differentsocial groups becoming more polarized. TheJapanese situation has implications for thefuture orientation of educational reforms inother countries, particularly in theAsia-Pacific region.