Dark deeds in a sunny land: or Blacks and whites in North-West Australia

The frontier of European settlement in the colony of Western Australia a hundred years ago stretched way beyond the south-western corner to the far north, and pastoralists were pushing steadily inland wherever the countryside offered promise of a living to be gained. Only the presence of Aborigines stood between them and the land they sought. On a frontier as far from the colonial capital as this where governmental representatives were few or absent, the newcomers were largely free to deal with the Aboriginal presence in their own way. Whether relations between the original inhabitants and the invaders were mostly peaceful or conflicting depended on a host of factors, such as the tenor of initial encounters, the expectations the Europeans had of the Aborigines, whether or not Aboriginal sacred sites or objects were violated, and so on. What was certain, however, in the absence of convict labour, was the vital need for an Aboriginal labour force if the fledgling industry was to survive in the more remote areas of the colony..

Porometry, porosimetry, image analysis and void network modelling in the study of the pore-level properties of filters

We present fundamental and quantitative comparisons between the techniques of porometry (or flow permporometry), porosimetry, image analysis and void network modelling for seven types of filter, chosen to encompass the range of simple to complex void structure. They were metal, cellulose and glass fibre macro- and meso-porous filters of various types. The comparisons allow a general re-appraisal of the limitations of each technique for measuring void structures. Porometry is shown to give unrealistically narrow void size distributions, but the correct filtration characteristic when calibrated. Shielded mercury porosimetry can give the quaternary (sample-level anisotropic) characteristics of the void structure. The first derivative of a mercury porosimetry intrusion curve is shown to underestimate the large number of voids, but this error can be largely corrected by the use of a void network model. The model was also used to simulate the full filtration characteristic of each sample, which agreed with the manufacturer's filtration ratings. The model was validated through its correct a priori simulation of absolute gas permeabilities for track etch, cellulose nitrate and sintered powder filters. © 2011 Elsevier Ltd

Emergency preparedness for those who care for infants in developed country contexts

Emergency management organisations recognise the vulnerability of infants in emergencies, even in developed countries. However, thus far, those who care for infants have not been provided with detailed information on what emergency preparedness entails. Emergency management authorities should provide those who care for infants with accurate and detailed information on the supplies necessary to care for them in an emergency, distinguishing between the needs of breastfed infants and the needs of formula fed infants. Those who care for formula fed infants should be provided with detailed information on the supplies necessary for an emergency preparedness kit and with information on how to prepare formula feeds in an emergency. An emergency preparedness kit for exclusively breastfed infants should include 100 nappies and 200 nappy wipes. The contents of an emergency preparedness for formula fed infants will vary depending upon whether ready-to-use liquid infant formula or powdered infant formula is used. If ready-to-use liquid infant formula is used, an emergency kit should include: 56 serves of ready-to-use liquid infant formula, 84 L water, storage container, metal knife, small bowl, 56 feeding bottles and teats/cups, 56 zip-lock plastic bags, 220 paper towels, detergent, 120 antiseptic wipes, 100 nappies and 200 nappy wipes. If powdered infant formula is used, an emergency preparedness kit should include: two 900 g tins powdered infant formula, 170 L drinking water, storage container, large cooking pot with lid, kettle, gas stove, box of matches/lighter, 14 kg liquid petroleum gas, measuring container, metal knife, metal tongs, feeding cup, 300 large sheets paper towel, detergent, 100 nappies and 200 nappy wipes. Great care with regards hygiene should be taken in the preparation of formula feeds. Child protection organisations should ensure that foster carers responsible for infants have the resources necessary to formula feed in the event of an emergency. Exclusive and continued breastfeeding should be promoted as an emergency preparedness activity by emergency management organisations as well as health authorities. The greater the proportion of infants exclusively breastfed when an emergency occurs, the more resilient the community, and the easier it will be to provide effective aid to the caregivers of formula fed infants

Café Culture: Promoting Empowerment and Pleasure in Adolescent Literacy Learning

The 160 third, seventh, and eleventh-graders involved in this study agreed, almost unanimously, that reading was“important.” Participants cited the empowering benefits of reading as they justified this opinion. However, with regards to the enjoyment of reading, fewer middle and high school participants reported “liking” reading than their elementary counterparts and fewer reported reading in their free time. One solution to this dilemma involves providing adolescent students with a context devoted solely to pleasure reading. In doing so, educators can look to an institution that boasts both an historical link to literate culture and current-day pop culture appeal: the coffeehouse. When combined with more traditional forms of literacy instruction, the coffeehouse provides a viable model for promoting both empowerment and pleasure in adolescent literacy learning

Sensory Plasticity in Human Motor Learning.

There is accumulating evidence from behavioral, neurophysiological, and neuroimaging studies that the acquisition of motor skills involves both perceptual and motor learning. Perceptual learning alters movements, motor learning, and motor networks of the brain. Motor learning changes perceptual function and the sensory circuits of the brain. Here, we review studies of both human limb movement and speech that indicate that plasticity in sensory and motor systems is reciprocally linked. Taken together, this points to an approach to motor learning in which perceptual learning and sensory plasticity have a fundamental role

Assessment of the Barramundi Fishery in Queensland - 2002

The barramundi, Lates calcarifer, is an important target species of commercial, recreational and indigenous fishers across northern Australia. In Queensland stocks from the Gulf of Carpentaria and the east coast are managed separately. An assessment of both the Gulf and East Coast stocks are reported here

Synthesis of Novel [3, 2-b] Indole Fused Oleanolic Acids as Potential Inhibitors of Cell Proliferation

Seven new indole-fused oleanolic acid derivatives were synthesized from oleanolic acid for their ability to inhibit cell proliferation in NRP. 152 cells

Spinal stretch reflexes support efficient hand control

© 2019, The Author(s), under exclusive licence to Springer Nature America, Inc. Motor behaviour is most efficiently controlled by correcting only disturbances that influence task success. It is currently thought that such control is computed within a transcortical feedback pathway. Here we show that, for postural hand control, even the fastest spinal feedback pathway can produce efficient corrective responses, forcing a re-evaluation of how the nervous system derives the control laws that support motor behavior

Accuracy, Stability, and Corrective Behavior in a Visuomotor Tracking Task: A Preliminary Study

Visuomotor tracking tasks have been used to elucidate the underlying mechanisms that allow for the coordination of a movement to an environmental event. The main purpose of the present study was to examine the relationship between accuracy and stability of tracking performance and the amount of corrective movements that emerge for various coordination patterns in a unimanual visuomotor tracking task. Participants (N = 6) produced rhythmic elbow flexion–extension motions and were required to track an external sinusoidal signal at five different relative phases, 0°, 45°, 90°, 135°, and 180°. Differential accuracy and stability were found among the five tracking patterns with the 0° relative phase pattern being the most accurate and stable pattern. Corrective movements were correlated with changes in accuracy only for the 0° relative phase pattern, with more corrections emerging for less accurate performance. The amount of corrective movements decreased as the stability of tracking performance increased for the 0°, 45°, and 135° patterns. For the 90° and 180° tracking patterns, the amount of corrective movements was not correlated with pattern accuracy or pattern stability. The results demonstrate that corrective behaviors are an important motor process in maintaining the stability of stable perception-action coordination patterns, while offering little benefit for unstable perception-action patterns