A Segment is not a Monolith: evidence from the Howiesons Poort of Sibudu,South Africa

Segments from the Howiesons Poort of Sibudu, South Africa, can be separated into at least three populations based on quartz, hornfels and dolerite rocks used for their production. Length, breadth, thickness and tip cross-sectional areas are significantly different between segments made on the three rock types. Segments are not monoliths, and they were not intended as a single tool type, they were flexible enough to be mounted to shafts in a variety of ways. Several hafting strategies are evident, including the use of different adhesive recipes. Most segments were probably parts of hunting weapons, based on use trace analysis, but weapon types varied. Quartz segments have standardized shapes (short and deep), perhaps because they were hafted as transverse arrowheads. While hornfels and dolerite segments may on occasion also have been parts of projectiles, the large dolerite segments could sometimes have served as parts of spearheads, with two segments hafted back-to-back. Howiesons Poort segment technology is sophisticated; its makers appreciated distinct properties of rocks, their flaking, wear and impact possibilities. Further, they recognized the best sizes and shapes for use with each kind of weapon, they understood the qualities and applications of various adhesive recipes, and they knew how to make a variety of hafts from materials that included bone and wood.     

Between Jakarta and Geneva: why Abbott needs to view Africa as a great opportunity

Australia's engagement with Africa during the Rudd and Gillard governments was primarily driven by the national interest, which revolved around three issues: humanitarianism, support for mining corporations, and the United Nations Security Council seat. This article argues that there is a need for the Abbott government to retain the same depth and breadth of relationships with Africa. It is in the interest of both Australia and African states for the Australian government to remain committed to humanitarian objectives and to help African countries meet some of their Millennium Development Goal targets. Moreover, the continued support of Australian mining corporations operating in Africa, especially through the training of African policy makers in mining governance, is good for both Africa and Australia. Finally, Australia's continued success in multilateral diplomacy will depend on support from all parts of the world, including Africa. Australia's success at the multilateral level will, in turn, result in bilateral benefits in other regions, including the Asia-Pacific.     

Children's perceptions of and attitudes towards,transport modes: why a vehicle for change is long overdue

Overreliance on car transportation impacts negatively on children's health, safety and well-being. This paper presents research that investigated children's perceptions of, and attitudes towards, transport modes. Primary children completed a pictorial questionnaire (n?=?486), 119 participated in focus groups (n?=?27). The findings suggest that children learn about transport modes from different interacting sources, both through experiential and vicarious mediums. The author concludes that the social emphasis on cars can have an intellectual impact that is detectable in the perceptions and attitudes of many children. It is argued that current policy for reducing car use in the UK has a narrow focus and does not address the role of social and cultural factors in car usage and dependency. Suggestions for new initiatives aimed at the family and the media are described.     

Historical aspects of the neonatal neurological examination: why child neurologists are not 'little' adult neurologists

The origins of the neonatal neurological examination are described with their common basis attributable to evolutionary theory, the classical neurosciences, clinical neurology, and developmental psychology. It is shown that not only have the techniques of the bedside examination changed over the past half century but the purpose of the examination has also evolved; initially the examination was used to assess maturation of the developing infant, now it is used to determine whether cerebral pathology may be present and whether examination abnormalities are helpful in outcome assessment. The development of several of the current neonatal neuroogical examinations are reviewed and their cllinical and scientific basis examined.     

非洲·不羁木吉他

最早对非洲的认知来自于三毛的散文,女作家小资而又睿智的笔,就像木吉他六条弦上拨弄出的声音:清甜温润,一贯的安静。那些我们从不曾说出它的真正意义的东西,一不留神,就从这低吟浅唱中,如水一般蔓延开来。而今,坐在豪华列车上,穿越这片不羁的大陆。阳光暖融融,隐隐约约的汽笛声,女孩们轻轻的笑着,在那么小