44,232 research outputs found
Teachers’ views of teaching sex education: pedagogies and models of delivery
This paper is based on a study of 17 secondary schools in an inner-city area of England deemed to have very high levels of teenage pregnancies. The New Labour Government argued that academic achievements and effective labour-market participation are inhibited by early or 'premature' parenthood (Social Exclusion Unit 1999). It therefore set in place policies to address these issues efectively in schools, through a revised school achievement agenda and a revised Sex & Relationship Education (SRE) programme. In this paper, we concentrate on the role and views of personal, social and/or health education coordinators charged with the delivery of SRE in secondary schools. We consider the way a broad-based, inclusive curriculum and pastoral programme fits into the subject-based and assessed curriculum of secondary schools for 11-16 where there is no tradition of open discussion of sexual matters. The legitimacy of teaching about sex and relationships in school has been hotly contested. The question of how to deal with teenage pregnancy and sexuality remains politically charged and sensitive and the teacher's role is thus contentious. We present a range of views about the professional or other pressures on schools, especially teachers, discussing difficulties within each of the main models of delivery. Teachers reprt considerable anxiety about SRE as a subject and its low status inthe curriculum, committed though they are to teaching it. This links with what is now seen as an overarching culture of anxiety regarding sex in contemporary society. Many teachers think that attending to young people's personal and social development - and especially their sexual identities - could help their education careers and academic achievement. Thus, from the teachers' accounts, we argue that there are important links between the revised sex education curriculum and the new emphasis on the achievement agenda in secondary schools in the UK
One-Sided Projections on C*-algebras
In [BEZ] the notion of a complete one-sided M-ideal for an operator space X
was introduced as a generalization of Alfsen and Effros' notion of an M-ideal
for a Banach space [AE72]. In particular, various equivalent formulations of
complete one-sided M-projections were given. In this paper, some sharper
equivalent formulations are given in the special situation that , a -algebra (in which case the complete left M-projections
are simply left multiplication on by a fixed orthogonal
projection in or its multiplier algebra). The proof of the first
equivalence makes use of a technique which is of interest in its own right--a
way of ``solving'' multi-linear equations in von Neumann algebras. This
technique is also applied to show that preduals of von Neumann algebras have no
nontrivial complete one-sided M-ideals. In addition, we show that in a
-algebra, the intersection of finitely many complete one-sided M-summands
need not be a complete one-sided M-summand, unlike the classical situation
Intrusion Detection Systems for Community Wireless Mesh Networks
Wireless mesh networks are being increasingly used to provide affordable network connectivity to communities where wired deployment strategies are either not possible or are prohibitively expensive. Unfortunately, computer networks (including mesh networks) are frequently being exploited by increasingly profit-driven and insidious attackers, which can affect their utility for legitimate use. In response to this, a number of countermeasures have been developed, including intrusion detection systems that aim to detect anomalous behaviour caused by attacks. We present a set of socio-technical challenges associated with developing an intrusion detection system for a community wireless mesh network. The attack space on a mesh network is particularly large; we motivate the need for and describe the challenges of adopting an asset-driven approach to managing this space. Finally, we present an initial design of a modular architecture for intrusion detection, highlighting how it addresses the identified challenges
Active learning in the lecture theatre using 3D printed objects
The ability to conceptualize 3D shapes is central to understanding biological processes. The concept that the structure of a biological molecule leads to function is a core principle of the biochemical field. Visualisation of biological molecules often involves vocal explanations or the use of two dimensional slides and video presentations. A deeper understanding of these molecules can however be obtained by the handling of objects. 3D printed biological molecules can be used as active learning tools to stimulate engagement in large group lectures. These models can be used to build upon initial core knowledge which can be delivered in either a flipped form or a more didactic manner. Within the teaching session the students are able to learn by handling, rotating and viewing the objects to gain an appreciation, for example, of an enzyme’s active site or the difference between the major and minor groove of DNA. Models and other artefacts can be handled in small groups within a lecture theatre and act as a focal point to generate conversation. Through the approach presented here core knowledge is first established and then supplemented with high level problem solving through a "Think-Pair-Share" cooperative learning strategy. The teaching delivery was adjusted based around experiential learning activities by moving the object from mental cognition and into the physical environment. This approach led to students being able to better visualise biological molecules and a positive engagement in the lecture. The use of objects in teaching allows the lecturer to create interactive sessions that both challenge and enable the student
Transformation Optics with Photonic Band Gap Media
We introduce a class of optical media based on adiabatically modulated,
dielectric-only, and potentially extremely low-loss, photonic crystals. The
media we describe represent a generalization of the eikonal limit of
transformation optics (TO). The foundation of the concept is the possibility to
fit frequency isosurfaces in the k-space of photonic crystals with elliptic
surfaces, allowing them to mimic the dispersion relation of light in
anisotropic effective media. Photonic crystal cloaks and other TO devices
operating at visible wavelengths can be constructed from optically transparent
substances like glasses, whose attenuation coefficient can be as small as 10
dB/km, suggesting the TO design methodology can be applied to the development
of optical devices not limited by the losses inherent to metal-based, passive
metamaterials.Comment: 4 pages, 4 figure
Gun Carrying Among Adolescents
Outdoor education is a promising educational field that can support indoor education and provide benefits beyond the evidentknowledge. Outdoor and indoor education together can formulate the ground for an integrated learning. In Greece, like manycountries, outdoor education and its potential contribution to the learning process have not been clearly and intentionally testedyet, even though the country tends to follow a progressive educational philosophy. This research focuses on the subject ofmathematics and explores the connections between the existing philosophy and practices of mathematics education in Greece andoutdoor education theory and practice. Following the method of content analysis, the connections were identified through theexistence of basic outdoor education concepts in the mathematics textbooks of the last three grades of primary school. Althoughthe expectations, because of the lack of personal experiences, could not be high, the application of outdoor education seems to befar from impossible in Greece. It could rather flourish even without any changes in the books, when its potentialities are realizedby the teachers
The I in Autism:severity and social functioning in Autism is related to self-processing
It is well established that children with autism spectrum disorder (ASD) show impaired understanding of others and deficits within social functioning. However, it is still unknown whether self-processing is related to these impairments and to what extent self impacts social functioning and communication. Using an ownership paradigm, we show that children with ASD and chronological- and verbal-age-matched typically developing (TD) children do show the self-referential effect in memory. In addition, the self-bias was dependent on symptom severity and socio-communicative ability. Children with milder ASD symptoms were more likely to have a high self-bias, consistent with a low attention to others relative to self. In contrast, severe ASD symptoms were associated with reduced self-bias, consistent with an ‘absent-self’ hypothesis. These findings indicate that deficits in self-processing may be related to impairments in social cognition for those on the lower end of the autism spectrum
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