2,969,449 research outputs found
Hybrid Power-Sharing in Indonesia
The aim of this study is to demonstrate the validity of the thesis that in Indonesia one can find institutions that characterize two power-sharing models which are considered opposites of one another in political theory â centripetalism and consociationalism. In consequence, the Indonesian power-sharing system should be viewed as a hybrid, or mixed, system, and not a typically centripetal system as is usually the case in the literature. At the beginning of this article, a short analysis of Indonesiaâs political situation is given for the purpose of defining the factors which determined the introduction of inter-segmental power-sharing arrangements in that country. This is followed by a description of the specificity of consociationalism and centripetalism. The article goes on to discuss specific institutions of both power-sharing models that exist in Indonesia and ends with some concluding remarks on the thesis advanced at the outset. The article has been published in "Polish Political Science Yearbook" 2017, vol. 46, no. 1, pp. 168â185. For more on combining institutions of different models of power-sharing see: Krzysztof Trzcinski, Hybrid Power Sharing: On How to Stabilize the Political Situation in Multi-Segmental Societies, "Politeja" 2018, vol. 56, no. 5, pp. 86-10
How Theoretically Opposite Models of Interethnic Power-Sharing Can Complement Each Other and Contribute to Political Stabilization: The Case of Nigeria
The aim of this article is to demonstrate the thesis that the stabilization of Nigeriaâs complicated political situation is furthered by the functioning in that country of institutions based on two models of interethnic power-sharing â consociationalism and centripetalism â and that the two are to some extent complementary in Nigerian practice, despite the fact that political theory sees the two as opposites of each other. The article begins with a short analysis of the political situation in Nigeria. This is followed by a presentation of the problem of defining the notion of political stability and an assessment of the same in the Nigerian context. The article then goes on to discuss the nature of centripetalism and consociationalism and specific centripetal and consociational institutions involved in the stabilization of the political situation in Nigeria. The article ends with the authorâs conclusions about the initial thesis. The article has been published in "Politeja" 2016, vol. 42, no. 3, pp. 53-73. For more on combining institutions of different models of power-sharing see: Krzysztof Trzcinski, Hybrid Power Sharing: On How to Stabilize the Political Situation in Multi-Segmental Societies, "Politeja" 2018, vol. 56, no. 5, pp. 86-107
On the Capacity of SWIPT Systems with a Nonlinear Energy Harvesting Circuit
In this paper, we study information-theoretic limits for simultaneous
wireless information and power transfer (SWIPT) systems employing a practical
nonlinear radio frequency (RF) energy harvesting (EH) receiver. In particular,
we consider a three-node system with one transmitter that broadcasts a common
signal to separated information decoding (ID) and EH receivers. Owing to the
nonlinearity of the EH receiver circuit, the efficiency of wireless power
transfer depends significantly on the waveform of the transmitted signal. In
this paper, we aim to answer the following fundamental question: What is the
optimal input distribution of the transmit waveform that maximizes the rate of
the ID receiver for a given required harvested power at the EH receiver? In
particular, we study the capacity of a SWIPT system impaired by additive white
Gaussian noise (AWGN) under average-power (AP) and peak-power (PP) constraints
at the transmitter and an EH constraint at the EH receiver. Using Hermite
polynomial bases, we prove that the optimal capacity-achieving input
distribution that maximizes the rate-energy region is unique and discrete with
a finite number of mass points. Furthermore, we show that the optimal input
distribution for the same problem without PP constraint is discrete whenever
the EH constraint is active and continuous zero-mean Gaussian, otherwise. Our
numerical results show that the rate-energy region is enlarged for a larger PP
constraint and that the rate loss of the considered SWIPT system compared to
the AWGN channel without EH receiver is reduced by increasing the AP budget.Comment: 7 pages, 4 figures, submitted for possible conference publicatio
Complete next-to-leading order calculation for pion production in nucleon-nucleon collisions at threshold
Based on a counting scheme that explicitly takes into account the large
momentum sqrt(M m_pi) characteristic for pion production in nucleon-nucleon
collisions we calculate all diagrams for the reaction NN --> NN pi at threshold
up to next-to-leading order. At this order there are no free parameters and the
size of the next-to-leading order contributions is in line with the expectation
from power counting. The sum of loop corrections at that order vanishes for the
process pp --> pp pi^0 at threshold. The total contribution at next-to-leading
order from loop diagrams that include the delta degree of freedom vanishes at
threshold in both reaction channels pp --> pp pi^0, pn pi^+.Comment: 9 pages, 4 figure
Parity Violation in Proton-Proton Scattering at 221 MeV
TRIUMF experiment 497 has measured the parity violating longitudinal
analyzing power, A_z, in pp elastic scattering at 221.3 MeV incident proton
energy. This paper includes details of the corrections, some of magnitude
comparable to A_z itself, required to arrive at the final result. The largest
correction was for the effects of first moments of transverse polarization. The
addition of the result, A_z=(0.84 \pm 0.29 (stat.) \pm 0.17 (syst.)) \times
10^{-7}, to the pp parity violation experimental data base greatly improves the
experimental constraints on the weak meson-nucleon coupling constants
h^{pp}_\rho and h^{pp}_\omega, and has implications for the interpretation of
electron parity violation experiments.Comment: 17 pages RevTeX, 14 PostScript figures. Revised version with
additions suggested by Phys. Rev.
Cosmic ray composition between 10 to the 15th power - 10 to the 17th power eV obtained by air shower experiments
Based on the air shower data, the chemical composition of the primary cosmic rays in the energy range 10 to the 15th power - 10 to the 17th power eV was obtained. The method is based on a well known N sub e-N sub mu and N sub e-N sub gamma. The simulation is calibrated by the CERN SPS pp collider results
Seasonal adjustment and cointegration
We examine the effects of seasonal adjustment filters on the size and power of ADF and PP residual-based cointegration tests via a Monte Carlo and an empirical application. Our results indicate that the use of filters distorts the size and reduces the power of these tests.Seasonal adjustment, linear filters, cointegration
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