Validity of self-report measures of girls' pubertal status

To understand the meaning of somatic changes to the adolescent and their possible effects on behavior, developmentalists have begun to examine maturational timing and status in detail. Efforts have been hampered by the necessity of obtaining somatic growth data by physician examination. In the present study, 3 self-report methods for rating secondary sexual characteristic growth were compared to physician ratings; the accuracy of self-reported height and weight also was assessed. Specifically, 151 11-, 12-, and 13-year-old girls rated their breast and pubic hair development using schematics of the 5 Tanner stages and filled out the Pubertal Development Scale (PDS); their mothers also rated their daughters' development using the Tanner stage schematics. The correlation with physician Tanner ratings was .82 for self-ratings, .85 for ratings by the mother, and between .61 and .67 for self-reports on the PDS. The correlations for self- and actual reports of weight and height were .98 and .75, respectively. The usefulness of the PDS, Tanner ratings, and self-reported height and weight as adequate estimates of pubertal development is discussed.     

Antibacterial and anti-biofilm activity of the lipid extract from <Emphasis Type="Italic">Mantidis ootheca</Emphasis> on <Emphasis Type="Italic">Pseudomonas aeruginosa</Emphasis>

The aim of this study is to assess the antibacterial and anti-biofilm properties of the lipid extract from Mantidis ootheca against the gentamycin resistant Pseudomonas aeruginosa. The chemical composition of the lipid extract and its relative proportion were determined using the technique of gas chromatography coupled with mass spectrometry (GC-MS). Antibacterial susceptibility tests were performed using a disc diffusion assay and the minimum inhibition concentration (MIC) was determined by way of the agar dilution method. The anti-biofilm test was carried out with crystal violet staining and scanning electron microscopy (SEM). There were 16 compounds detected, and the most abundant components were sesquiterpenoids, monoterpenes, and trace aromatic compounds. The MIC for P. aeruginosa was 4 mg/ml and the eradication effect on preformed biofilms was established and compared with a ciprofloxacin control. The results of our study indicated that a lipid extract from M. ootheca could be used as a topical and antibacterial agent with anti-biofilm activity in the future.     

Sustainable development,higher education and pedagogy: a study of lecturers' beliefs and attitudes

Education for sustainable development (ESD) is playing an increasing role in the higher education curriculum. However, little previous research exists on lecturers' understanding of and attitudes towards sustainable development. This study used an online questionnaire to investigate lecturers' views of sustainable development and its contribution to the higher education curriculum. The questionnaire asks lecturers from a variety of different disciplines about their views on appropriate pedagogy for ESD, and gives insights into the potential opportunities for and barriers to the incorporation of ESD into higher education. The findings of this survey reveal a wide range of understandings of sustainable development within this institution—and a high level of critical debate about the concept itself. In common with some previous research, there are indications that many lecturers find the language of ESD inaccessible. Despite this, a fairly high level of support for sustainable development is expressed across all discipline areas and a range of suggestions about appropriate pedagogies for ESD are raised. However, the extent to which this enthusiasm can be translated into practical changes to the higher education curriculum remains less certain.     

Teacher classroom management styles with beginning high school students

Initial encounters are uncertain, problematic and exploratory in character compared to routine encounters when the rules have been stabilised. More needs to be known about the strategic resources brought into play by teachers and puplis as they mould the social and academic, topography of different kinds of classrooms (Beynon, 1985, p. 4).     

Developmental counseling and the educational process

Summary This paper has presented a model that includes a cooperative effort of the teacher and the school counselor. The goal is a more productive and healthy learning environment for the child in school.First, a recognition that today's emphasis is on remedial and orises situations was discussed. Second, although many persons are responsible for a child's learning, efforts are often fragmented and lack continuity. Finally, a model was presented in which the teacher and the counselor act cooperatively as a team, each one assuming the active or supportive role according to the needs of the child and the recognized expertise of the adult.     

Fearfulness in female and male cats

Cats were observed in four moderately frightening novel situations. One of 12 response measures indicated that females are more fearful than males, 1 indicated that males are more fearful than females, and the remaining 10 measures revealed no significant difference between males and females. The results thus yield no evidence of any large and consistent difference in fear between female and male cats. Gonadal hormones do not determine any single pattern of sex difference in fearfulness in different species of mammals. Species-specific patterns of social organization may predict sex differences in fear in studied species more accurately than endocrine factors.     

Working together: strategies that support cross-cultural engagement of Indigenous teacher assistants working in Indigenous contexts

Indigenous teacher assistants (ITAs) are often employed in schools to assist in addressing educational issues relating to Indigenous students. While, this practice has occurred for over 40 years in most Australian states, little has been written about their contribution in assisting Indigenous students to learn. This paper explores the influence of a large longitudinal research project (Representations Oral Language and Engagement in Mathematics) with respect to the role of ITAs in supporting Indigenous students’ to learn mathematics. Data are collected from the perspectives of ITAs, teachers and school principals. In particular, the research proposes that including ITAs in high stakes professional learning, not only changes their confidence and contribution in the classrooms but also allows them and their students to begin to “walk” between the two knowledge worlds, Indigenous knowledge and Western knowledge.