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101.
Friday Njaya Katherine A. Snyder Daniel Jamu John Wilson Clive Howard-Williams Edward H. Allison Neil L. Andrew 《Journal of Great Lakes research》2011
Lake Chilwa produces between zero and 24,000 metric tons of fish per year, making it one of the most productive but variable lakes in Africa. The size of the lake varies seasonally and among years, sometimes drying completely. Its surrounding wetland and floodplain provide habitat for a diversity of birds and economically valuable grasses and reeds. When the lake has water, there is considerable activity on its shores and temporary fishing villages spring up. People move in and out of the lake basin in concert with these seasonal and longer term changes. This paper examines the environmental dynamics of Lake Chilwa and its surrounding wetlands, presents an overview of the socio-economic context of the area and discusses threats to this resilient system that might occur as a result of climate change. We conclude that management of Lake Chilwa must place the lake in the wider economic and ecological system in which it is situated. Ultimately, land-use practices within the basin present more of a threat to the resilience of the fishery and people's livelihoods than overfishing or a strict focus on the lake's resources. These perspectives present significant challenges to conventional fisheries governance. 相似文献
102.
I investigated the role of IT governance in driving the success of ERP projects. The tool for assessing ERP value was a comprehensive, multivariate and validated model adapted from the widely used Delone and McLean model of IS success. This showed that ERP investments were more effective in organizations having an IT governance domain consisting of proactive strategic guidance and participatory team building. Large enterprises, however, under-performed compared to SMEs and needed specific performance drivers, such as top management commitment to become effective. 相似文献
103.
Stephen J. Blackband Richard W. Bowtell Andrew Peters Jonathan C. Sharp Peter Mansfield Edward W. Hsu Nanci Aiken Anthony Horsman 《Magma (New York, N.Y.)》1994,2(3):445-447
Previous NMR microimaging studies at 360 MHz have demonstrated a clear differentiation between the nucleus and cytoplasm in isolated single neurons. In particular, theT
2 of the cell nucleus is 2.5 times larger than that of the cytoplasm. In order to determine the magnitude of possibleT
2
*
influences on these observations, images of single cells have been obtained at 500 MHz using spin-echo and line-narrowing sequences. Comparison of the images acquired by the two sequences, and of the spin-echo images at 360 and 500 MHz, imply that anyT
2
*
contributions are relatively small. Consequently, the measuredT
2 differences in spin-echo imaging represent a true difference in theT
2 relaxation in the two cellular compartments. 相似文献
104.
Pickering and Chater (P&C) maintain that folk psychology and cognitive science should neither compete nor cooperate. Each is an independent enterprise, with a distinct subject matter and characteristic modes of explanation. P&C's case depends upon their characterizations of cognitive science and folk psychology. We question the basis for their characterizations, challenge both the coherence and the individual adequacy of their contrasts between the two, and show that they waver in their views about the scope of each. We conclude that P&C do not so muchdiscover ascreate the gap they find between folk psychology and cognitive science. It is an artifact of their implausible and unmotivated attempt to demarcate the two areas, and of the excessively narrow accounts they give of each. 相似文献
105.
106.
Farrugia Russell Portelli Barnaby Grech Ivan Camilleri Duncan Casha Owen Micallef Joseph Gatt Edward 《Microsystem Technologies》2022,28(6):1451-1465
Microsystem Technologies - The maximum scan angle amplitude of resonating micro-mirrors, intended for micro-projection display applications is limited by air damping. Three-dimensional transient... 相似文献
107.
Rakesh Singh Chaudhary Edward Amankwaa Sandeep Kumar Tom Hu Mohamed Chan Pradeep Sanghvi 《Drug development and industrial pharmacy》2016,42(7):1137-1148
Evaluation of hot-melt granulation of fenofibrate and croscarmellose sodium and its cooling time for the molten mass in a ratio of 55:45 was conducted to assess the manufacturing process capability to produce an acceptable granulation which flows well on Korsch PH300 tablet compression machine. The formation of the drug-polymer eutectic mixture was investigated by differential scanning calorimetry, scanning electron microscopy and X-ray powder diffraction. The physical properties of the hot-melt was determined by examining the milled blocks after solidification and milling after cooling periods of 10, 20 and 30 d. The milled material was assessed for the effect of hold time of the blend on the solid dose compression characteristics. The impact of cooling on the processing of the blocks was assessed after 10, 20 and 30 d of cooling. The study suggests that after the hot-melt formed the fenofibrate crystallized independently and a solid solution with croscarmellose sodium was not formed. The age of the blocks determined the hardness of the crystals, changing the processing nature of the granules with respect to compression and powder flow characteristics. The blocks processed after 20 d and beyond produced granules with a characteristic suitable for holding the blend for 14 d in the bin with no impact on flow properties and compressibility of the blend. There was no chipping, capping, sticking or picking observed and a higher compression speed was achieved. 相似文献
108.
109.
Jun Pan Li Na Quan Yongbiao Zhao Wei Peng Banavoth Murali Smritakshi P. Sarmah Mingjian Yuan Lutfan Sinatra Noktan M. Alyami Jiakai Liu Emre Yassitepe Zhenyu Yang Oleksandr Voznyy Riccardo Comin Mohamed N. Hedhili Omar F. Mohammed Zheng Hong Lu Dong Ha Kim Edward H. Sargent Osman M. Bakr 《Advanced materials (Deerfield Beach, Fla.)》2016,28(39):8718-8725
110.
Nicholas A. Yaraghi Nicolás Guarín‐Zapata Lessa K. Grunenfelder Eric Hintsala Sanjit Bhowmick Jon M. Hiller Mark Betts Edward L. Principe Jae‐Young Jung Leigh Sheppard Richard Wuhrer Joanna McKittrick Pablo D. Zavattieri David Kisailus 《Advanced materials (Deerfield Beach, Fla.)》2016,28(32):6835-6844