121 research outputs found
Мировой финансовый кризис и методология управления портфелем ценных бумаг
The world financial crisis highlighted the practical inefficiency of the majority of existing theoretical researches in security portfolio management, what makes the article especially urgent. The article points at: finding the common methodological impropriety for most of the strategies; and shaping the new methodological principles. One of the major conclusions of the article is that the key issue of new methodology should be usage of trend-tracking methods of technical analysis.Мировой финансовый кризис обнаружил практическую неэффективность абсолютного большинства существующих теоретических разработок в сфере формирования и управления портфелем ценных бумаг, что обусловливает актуальность статьи. Целью статьи является нахождение общей для основных подходов к управлению портфелем ценных бумаг методологической ошибочности, а также основ формирования новой методологии. Среди основных выводов - необходимость использования трендоследящих методов технического анализа в новой методологии, как фактора преодоления методологической ошибочности основных подходов
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Review of experience of family medicine in Europe and Central Asia : Executive summary
This report summarizes the findings of four case studies that review the experience of family medicine in Europe and Central Asia (ECA) Region. It is part of a study comprising five volumes that review the experience of family medicine in four countries in ECA--Armenia, Bosnia and Herzegovina, Kyrgyz Republic and Moldova. The report reviews the experience, draws lessons, and establishes an evidence base for detailed analysis. The study presents best practices for policy dialogue and future investments by the World Bank and other financial institutions. The detailed case studies compare these countries and draw common themes and issues. Comparisons are made with best-developed or existing models in the OECD and other countries in the Europe and Central Asia Region that have already undertaken family medicine reform
Light-induced injection of hot carriers from gold nanoparticles to carbon wire bundles
We observed a light-induced enhancement of the tunneling current propagating
through an array of parallel carbon chains anchored between gold nanoparticles
(NPs). In the presence of laser radiation characterized by a wavelength close
to the plasmon resonance of the NPs, the current-voltage characteristics of
carbon bundle tunnelling junctions demonstrate a pronounced asymmetry between
positive and negative bias values. Such an asymmetry is typical for a Schottky
junction, in general. The resistance of the tunnel junction decreases with the
increase of the optical pumping intensity. We associate the observed effect
with an injection of `hot' carriers created in Au NPs due to the decay of the
surface plasmons accompanied by the charge transfer to the carbon bundles. The
observed phenomenon can be used for non-resonant excitation of excitonic states
in low-dimensional carbon-based structures for single-photon emission, as well
as for photovoltaic applications.Comment: 9 pages, 3 figure
Cost-effectiveness of available treatment options for patients suffering from severe COPD in the UK: a fully incremental analysis
Polarization-sensitive photoluminescence from aligned carbon chains terminated by gold clusters
We synthesize a thin film composed of long carbyne chains terminated by gold
clusters and study its optical properties. The presence of gold particles
stabilizes longer chains and leads to their alignment. We show that the gold
clusters also act as a source of electron doping thus changing the intensity of
photoluminescence from quadratic dependence on the pumping intensity without
gold to linear with gold. We also observe that the excitation of the film at
the gold plasmon frequency causes the blue shift of photoluminescence and
estimate on the basis of this effect the minimum length of the carbyne chains.
The high degree of alignment of the gold-terminated carbyne chains results in
strongly anisotropic light absorption characterized by a distinctive cosine
dependence on the angle between the carbyne molecule and polarization plane of
the excitation. This paves the way for a new class of ultimately-thin
polarization sensitive emitters to be used in future integrated quantum
photonics devices.Comment: 5 pages, 5 figure
Tuberculosis control in Samara Oblast, Russia: institutional and regulatory environment.
SETTING: Tuberculosis control programme in Samara Oblast, Russia, funded in part by the government of the United Kingdom. OBJECTIVE: To identify and evaluate institutional and regulatory influences as well as incentives and disincentives that might be amenable to change in the promotion of the DOTS strategy. DESIGN: Multidisciplinary situational analysis through in-depth interviews of stakeholders and review of official federal and oblast documents. RESULTS: Interpretation of traditional notification data is complex because classification and reporting systems differ from World Health Organization principles. Regulations governing financing encourage lengthy hospitalisations and interventions, and provide few incentives to shift policy to ambulatory care. CONCLUSION: Accurate comparability of epidemiological trends and programmatic successes requires equivalent classification and reporting systems. If the DOTS strategy is to be sustainable, changes to financing systems will be needed
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