Frequency modulation demodulator threshold extension device

Threshold extension device for improving operating performance of frequency modulatioin demodulators by eliminating click-type noise impulse

A Study of Techniques for Calculating Motion Drive Signals for Flight Simulators

Development and evaluation of experimental test plan for solutions of motion drive problem in formation flying task with flight simulator

A framework for the analysis of mineral tax policy in sub-Saharan Africa

Given the dual role played by the Government as resource owner and tax collector in many sub - Saharan economies, it is important to separate"resource factor payments"from taxes through the use of different instruments. The instruments to be considered are: (1) a factor payment system that includes"ad rem"or"ad valorem"royalties. Production sharing, resource rent schemes, and fixed fees could also be used, but some form of unit payment is necessary and justified, because natural resources in the ground are inputs into the production process; (2) a cash flow and withholding tax system initially for the mineral sectors and eventually for other sectors of the economy. The cash flow tax would capture a share of the"economic rent"from each sector and be neutral across sectors; and (3) a depletion account to preserve the nations capital stock. Natural resources are part of an economy's capital stock, which will fall unless"replacement investment"is made as the resource is depleted.Economic Theory&Research,Environmental Economics&Policies,Banks&Banking Reform,Public Sector Economics&Finance,Health Economics&Finance

Decoupling economic growth and environmental degradation : reviewing progress to date in the small island state of Malta

This paper considers the challenge of decoupling economic growth from environmental degradation; in contrast to several large-scale cross-country analyses that focus on limited indicators of environmental degradation, we analyze in some depth the experience of a single small-scale island state setting (Malta). We use available statistical data to derive decoupling factors, in order to consider the extent to which decoupling has been achieved in four sectors: (i) energy intensity, climate change, and air quality; (ii) water; (iii) waste; and (iv) land. Results indicate relative decoupling between economic growth and several indicators considered, and to a lesser extent, relative decoupling between population growth and the same indicators of environmental pressure. Absolute decoupling has been achieved in at least one instance but there has been no decoupling of land development from either economic or population growth. Land use and population thus appear to be notable sources of pressure. The results suggest that decoupling analyses that present environmental degradation in terms of single variables (e.g., carbon emissions) may misrepresent somewhat the state of the environment at local level. Furthermore, the study highlights the need for methodologies that factor in the "embedding" of small-scale settings within much larger trade networks, for a more accurate estimation of environmental impact, and points to some limitations of solely quantitative analyses of environment-ecology relationships.peer-reviewe

Search for rare leptonic B decays at the Tevatron

Results of a search for the Flavor-Changing Neutral Current decay $B^0_{s,d} \to \mu^+ \mu^-$ using $p\bar{p}$ collision data at $\sqrt{s}=1.96$ TeV collected at Fermilab Tevatron collider by the CDF and D{\O}detectors are presented. CDF reports upper limits on ${\cal B} (B^0_{s} \to \mu^+ \mu^-) \leq 7.5 \cdot10^{-7}$ and ${\cal B}(B^0_{d} \to \mu^+ \mu^-) \leq 1.9 \cdot10^{-7}$ at the 95% C.L. using 171 pb$^{-1}$. The D{\O}Collaboration used 240 pb$^{-1}$ to set an even more stringent limit on the branching ratio for $B^0_{s} \to \mu^+ \mu^-$ of $5.0\cdot 10^{-7}$ at the 95% C.L.Comment: 5 pages, 2 figures, submitted to DPF 2004 conference proceedings, UC Riverside, C

Limits of stakeholder participation in sustainable development : "where facts are few, experts are many"

Extract from: The Mediterranean coastal areas from watershed to the sea : interactions and changes / by L.F. Cassar ... [et al.]. Proceedings of the MEDCORE International conference, Florence, 10th-14th November 2005The notion of including stakeholders, those affected (positively or negatively) by a sustainable development programme in both its design and implementation, has become a central concern for those implementing such programmes. Such an approach is often referred to as ‘stakeholder participation’, as ‘participatory development’ or more simply still as ‘participation’. How best to achieve this has been the topic of a substantial literature, with a host of different methodologies presented and promoted. Each has its own advantages and disadvantages, but there has been surprisingly little discussion in the sustainable development literature as to the limits and dangers of participation irrespective of the approach employed to ‘best’ facilitate it. Inter-linked with the limits of participation is the role of specialists and expert opinion in sustainable development. This paper discusses the results of participatory exercises conducted in Gozo (Malta) between 2003 and 2005. On the positive side, participation yielded many useful and interesting insights and invoked a sense of ‘involvement’ in sustainable development, but there were problems and these are discussed in this paper. For example, the outcome of the exercise crucially depends upon representation, and a simplified vision of ‘community’ often employed in participation to make it practicable can load the process in favour of certain stakeholder groups at the expense of others.peer-reviewe