5,713 research outputs found
Gelişmekte olan piyasalarda enerji tüketimi ve büyüme ilişkisinin panel kantil regresyon ile incelenmesi: VISTA ülkeleri örneği
Energy consumption and economic growth relationship is an important topic for global economy. Most of researchers investigated this relationship with different methods on different macro-economic data. These methods are including not only time-series econometrics but also panel data analysis. Moreover, they analyzed different countries or country groups classified by OECD, World Bank or any other economic organizations. The aim of study is the relationship between energy consumption and economic growth with panel quantile regression method on VISTA countries (Vietnam, Indonesia, South Africa, Turkey and Argentina). Estimations are made annually for 1985 – 2013 period. Dependent variable is GDP per capita growth and independent variables are logarithmic energy consumption indicators which are Oil Consumption, Coal Consumption, Hydroelectricity Consumption and Primary Energy Consumption. Results show that the effects of logarithmic energy consumption variables are changing on economic growth for different quantiles (τ = 0.25; 0.50; 0.75; 0.90). In conclusion, effect of oil consumption on economic growth is falling at high quantiles of GDP growth. In contrast, effect of hydroelectricity consumption and primary energy consumption on economic growth is rising at high quantiles. But, there is not a statistical significant effect of coal consumption on economic growth at any quantile
Modularity and 4D-2D spectral equivalences for large-N gauge theories with adjoint matter
In recent work, we demonstrated that the confined-phase spectrum of
non-supersymmetric pure Yang-Mills theory coincides with the spectrum of the
chiral sector of a two-dimensional conformal field theory in the large-
limit. This was done within the tractable setting in which the gauge theory is
compactified on a three-sphere whose radius is small compared to the strong
length scale. In this paper, we generalize these observations by demonstrating
that similar results continue to hold even when massless adjoint matter fields
are introduced. These results hold for both thermal and -twisted
partition functions, and collectively suggest that the spectra of large-
confining gauge theories are organized by the symmetries of two-dimensional
conformal field theories.Comment: 51 pages, LaTeX, 3 figure
Swimming of onboard-powered autonomous robots in viscous fluid filled channels
Microrobots can make a great impact in medical applications such as minimally-invasive surgery, screening and diagnosis of diseases, targeted therapy and drug delivery. Smallsized bio-inspired robots can mimic flagellar propulsion mechanisms of microorganisms for actuation in microfluidic environments, which are dominated by viscous forces. Microorganisms propel themselves by means of the motion of their flagella such as rotation of rigid helices or travelling planar waves on flexible tails similar to whipping motion. Here, we present characterization of swimming of onboard-powered autonomous robots inside cylindrical tubes. Robots consist of two links, head and tail, connected with a revolute joint. Rigid helical tails of the swimmer robots are made of steel wires with 12 different configurations of helical radius and pitch. From experiments forward linear velocity of robots and angular velocities of the links are measured, and compared with the mathematical model, which is based on the resistive force theory. Results indicate that the motion of the
swimmer inside channels can be predicted by means of the resistive force theory reasonably well
Ontological (in)security and the Kurdish issue in Turkey : ǂthe ǂuse of security discourse (1925‒1984)
How could one account for the discourse of security used by the Turkish state considering the Kurdish issue before 1984, when the terrorist attacks of the Partiya Karkaren Kurdistani (PKK) had not yet started, and hence there was no physical security threat against the state? This article aims to answer this question from the perspective of ontological (in)security. Based on Critical Discourse Analysis of state discourse, the article argues that the political, social and cultural traits of Kurdish identity created uncertainty in the Turkish self after the Sheikh Said re-bellion in 1925. Tribal/religious structures that were influential among Kurds and the expression of Kurdishness as a distinct identity disrupted the autobiographi-cal narratives about Turkishness, hence generating ontological insecurity for the Turkish state. To overcome this problem, the state relied on security discourse and securitized the traits of Kurdish identity, by which it felt threatened. As a result of this securitization, the state was able to legitimize the extraordinary measures taken against Kurds, such as forced resettlements. Securitization, in this sense, regenerated ontological security for the state, because the extraordinary measures served to suppress the Kurdish identity that threatened the certainty and conti-nuity of the Turkish self.Kako lahko pojasnimo sekuritarni diskurz, ki ga je turška država uporabljala pri soočanju s kurdskim vprašanjem pred letom 1984, še preden je prišlo do terorističnih napadov Kurdske delavske stranke (PKK), ko torej državna varnost ni bila fizično ogrožena? Na to vprašanje skuša avtor v prispevku odgovoriti z vidika ontološke varnosti oziroma negotovosti. Na podlagi kritične analize državnega diskurza dokazuje, da so politične, družbene in kulturne poteze kurdske identitete po uporu šejka Saida leta 1925 v turško jastvo vnašale negotovost. Plemenske in verske strukture, ki so imele med Kurdi velik vpliv, in izražanje kurdstva kot ločene identitete so kazili avtobiografske narative o turštvu ter posledično turško državo postavljali v ontološko negotovost. Država je skušala težavo rešiti s sekuritarnim diskurzom in sekuritizacijo lastnosti kurdske identitete, za katere je menila, da jo ogrožajo. S sekuritizacijo je upravičevala izredne ukrepe, ki jih je sprejemala zoper Kurde, denimo prisilno preselitev. Na ta način je obnovila svojo ontološko varnost, saj ji je z izrednimi ukrepi uspelo zatreti kurdsko identiteto, ki je ogrožala gotovost in kontinuiteto turškega jaza
PARANORMED SPACES OF ABSOLUTE LUCAS SUMMABLE SERIES AND MATRIX OPERATORS
The aim of this paper is to introduce the absolute series space as the the set of all series summable by the absolute Lucas method, and to give its topological and algebraic structure such as space, duals and Schauder basis. Also, certain matrix operators on this space are characterized
The Dynamic Impacts of Oil Price Shocks on Turkey’s Economic Growth
This study mainly aims at investigating the dynamic effects of a structural crude oil volatility shock on real economic growth for Turkish economy. To estimate the volatility, exponential GARCH(p,q) model was used and to estimate the dynamic structural relationships between oil price volatility and economic growth, structural VAR model was used. Empirical results suggest that the long-run response of accumulated economic growth to a structural shock in real crude oil price volatility is points. This means that quarterly economic growth decreases by points and this finding is of strong statistical significance. Keywords: EGARCH, SVAR, oil price volatilit
The mediating role of perceived administrative support for the effect of job motivation on organizational identification
In this study, the mediating role of perceived administrative support for the effect of teachers’ job motivation on their organizational identification perceptions was investigated. For this purpose, in mind, the opinions of 320 kindergarten teachers in 304 schools from 13 different school districts of Şahinbey/Gaziantep were received. However, 233 scales were taken into consideration. The research data were collected through Job Motivation Scale (JMS), Organizational Identification Scale (OIS) and Perceived Administrative Support Scale (PASS). Descriptive statistics, correlation analysis, multiple regression analysis, and path analysis were used in data analysis. Analysis results revealed that the job motivation perceptions of teachers were high. In addition, it was revealed that the participants also had high scores for organizational identification and perceived administrative support. Correlation analyses yielded positive, moderate and significant relationships between the research variables. Path analysis uncovered that perceived administrative support had a “partial mediating” role for the relationship between job motivation and organizational identification. Based on research findings, it was concluded that the effect of job motivation on teachers’ identification with their organizations was realized through perceived administrative support, albeit partially
Human Cytomegalovirus Infection: Biological Features, Transmission, Symptoms, Diagnosis, and Treatment
Human cytomegalovirus (CMV), a member of the human herpesviruses, is a deoxyribonucleic acid virus that is ubiquitous in the world. After primary infection, CMV develops a latent state; however, when the defense of the immune system decreases in a host, it can reactivate. Human cytomegalovirus infections are acquired via several ways. CMV is spread through contact with infected bodily fluids in humans, whereas it occurs in pregnant women through close contact with young children or through sexual transmission. The clinical manifestations consist of non-specific symptoms or clinical findings. However, the patients with acute CMV infections are generally asymptomatic. Congenital CMV infection (present at birth) occurs via intrauterine transmission of the virus that is thought to be transferred to the developing fetus. The common clinical manifestations of congenital CMV infection are sensorineural hearing loss, petechiae, jaundice at birth, and hepatosplenomegaly. The vast majority of healthy children and adolescents infected with CMV infections are most often asymptomatic. Treatment is recommended to initiate to the infants who have a symptomatic infection or primary immunodeficiency or asymptomatic infection with an isolated hearing loss. The diagnosis of congenital CMV infections should be considered when it is detected in the newborns with signs and symptoms consistent with congenital CMV disease or with abnormal neuroimaging consistent with CMV or newborns who have documented sensorineural hearing loss
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