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Kamu Harcamaları ve Kamu Gelirleri Arasındaki İlişki: Panel Nedensellik Analizi

Dökmen, Gökhan

Article | 2012 | Dokuz Eylül Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi27 ( 2 ) , pp.115 - 143

Günümüzde OECD üyesi ülkelerin birçoğu yüksek bütçe açıkları ile karşı karşıyadır. Bu durum, bütçe açıklarını azaltmada vergilere mi yoksa kamu harcamalarına mı öncelik verileceğine yönelik tartışmaları gündeme getirmiştir. Bu nedenle kamu harcamaları ve kamu gelirleri arasındaki ilişki politika belirleyicileri açısından büyük önem ihtiva etmektedir. Bu çalışmada 34 OECD üyesi ülkenin 1994-2007 dönemi yıllık verilerine dayanılarak kamu harcamaları ile kamu gelirleri arasındaki nedensellik ilişkisi ele alınmıştır. Bu çalışmanın ampirik sonuçları, kamu harcamaları ile vergi gelirleri arasında pozitif bir ilişkiyi desteklemektedir. Bun . . .unla birlikte Holtz-Eakin nedensellik test sonuçları, vergilerden kamu harcamalarına yönelik tek taraflı bir nedensellik ilişkisine ve OECD ülkeleri için vergi-harcama hipotezinin geçerliliğine işaret etmektedir. Bu bulgu, vergi gelirlerinin arttırılması sonucu bütçe açıklarının azaltılabileceği yönündeki geleneksel görüşe uygun düşmemektedir. Today, most of the OECD member countries faced with high budget deficits. This case brings up the discussions on priority of reducing the budget deficits using expenditure or taxes to the agenda. For this reason, the relationship between public expenditure and public revenue has a great importance for policy makers. In this study the causality relationship between public expenditure and public revenue are investigated based on 34 OECD member countries annual data over 1994-2007 period.Empirical results of this study mainly support the positive relationship between public expenditures and tax revenues. Moreover, the results of Holtz-Eakin causality tests indicate the unidirectional causality running from tax revenues to public expenditures and the validity of tax-spend hypothesis for OECD member countries. Our findings are inconsistent with the traditional view that increasing tax revenues can be reduced budget deficit Daha fazlası Daha az

Kounis syndrome, a cause of chest pain to keep in mind, may be associated with E148Q mutation

Saylan, B. | Cevik, A. | Firat, C.

Article | 2012 | HONG KONG JOURNAL OF EMERGENCY MEDICINE19 ( 4 ) , pp.278 - 282

Chest pain is among the leading complaints in paediatric emergency. The Kounis syndrome is a rare allergic coronary vasospasm, which can cause angina and myocardial infarction. Even though organic causes are infrequent as a cause of chest pain in children, it is important to know when and how this symptom may become serious. We reported a patient who had been admitted with chest pain to the emergency department, hospitalised for coronary vasospasm and diagnosed to have Kounis syndrome and heterozygous E148Q mutation. The finding could be a coincidental finding, but considering of the heterogeneity and phenotypic differences in FMF, . . .the relationship between E148Q mutation and Kounis syndrome should be explored further. (Hong Kong 2012;19:278-282 Daha fazlası Daha az

The importance of carotid artery stiffness and increased intima-media thickness in obese children

Ozcetin M. | Ruken Yuksekkaya Celikyay Z. | Celik A. | Yilmaz R. | Yerli Y. | Erkorkmaz U.

Article | 2012 | South African Medical Journal102 ( 5 ) , pp.295 - 299

Background. Atherosclerosis that starts in childhood invariably advances during adulthood. Aim. We aimed to study the effect of obesity on main carotid artery intima-media thickness (CIMT) and arterial stiffness. Material and methods. A total of 78 children were studied from October 2010 to February 2011. They were divided into obese (n=42, group 1) and normal (n=36, group 2). All children were subjected to physical examination, routine biochemical and haematological analysis, carotid ultrasonography and echocardiographic measurements. A detailed medical history was obtained. Body mass index (BMI) was calculated by dividing particip . . .ants' weight in kilograms by the square of their height in metres. Stiffness index ß was calculated using blood pressure and diameter of the systolic and diastolic artery. Intima-media thickness was also measured. Results. The mean age of the obese and normal (control) groups was 10.12±2.12 years and 9.78±1.78 years, respectively. Weight, BMI, and systolic and diastolic blood pressure values were significantly higher in the obese group (all Daha fazlası Daha az

Anomalous Wtb couplings in ?p collision at the LHC

Şahin B. | Billur A.A.

Article | 2012 | Physical Review D - Particles, Fields, Gravitation and Cosmology86 ( 7 ) , pp.295 - 299

We study the possibility for the process pp›p?p›pW -t(W +t¯)X with anomalous Wtb couplings in a model-independent effective Lagrangian approach at the LHC. We find 95% confidence level bounds on the anomalous coupling parameters for various values of the integrated luminosity. The improved constraints on the anomalous Wtb couplings have been obtained compared to current limits. © 2012 American Physical Society.

On numerical calculations of eigenvalues using ritz method

Göcen M. | Soykan Y.

Article | 2012 | Applied Mathematical Sciences6 ( 37-40 ) , pp.1973 - 1990

In this paper, we give some examples regarding the numbers and approximate values of eigenvalues of integral operators with certain rational kernels k(s, t) using Ritz approximation method.

New national and regional bryophyte records, 31

Ellis, L. T. | Alegro, A. | Bednarek-Ochyra, H. | Ochyra, R. | Bergamini, A. | Cogoni, A. | Erzberger, P.

Article | 2012 | JOURNAL OF BRYOLOGY34 , pp.123 - 134

WOS: 000305806500005

Low-temperature oxidation of some Turkish coals

Baris K. | Kizgut S. | Didari V.

Article | 2012 | Fuel93 , pp.423 - 432

Low-temperature oxidation of four different-rank Turkish coals was studied in order to assess the effects of temperature, particle size, coal petrography, and coal rank by monitoring CO 2 and CO formation rates and calculated CO/CO 2 ratios. Coals were classified to -425 + 212, -212 + 150, and -150 + 106 µm size groups and oxidized at 40, 60, and 90 °C. Temperature has a pronounced effect on the formation rates of CO 2 and CO; when the temperature increases, the formation rates of CO 2 and CO also increases. Nevertheless, the formation rates of CO 2 and CO were found to be independent of particle size, particularly at relatively low . . .er temperatures. Petrographic analysis showed that the coal sample having the highest inertinite group macerals was oxidized more easily, thus, yielding more CO 2 and CO. Relatively higher rank coals were oxidized more easily, but oxidation diminishes with time. On the contrary, oxidation progresses with time for lower rank samples especially at relatively higher temperatures. © 2011 Elsevier Ltd. All rights reserved Daha fazlası Daha az

Initial investigations of hand-motion crane control with double-pendulum payloads

Chen Chih Peng K. | Singhose W. | Gurleyuk S.S.

Conference Object | 2012 | Proceedings of the American Control Conference , pp.6270 - 6275

A novel hand-motion crane control system was developed that improves performance by providing: 1) an intuitive control interface and 2) an element that reduces the complex oscillatory behaviors of the payload. Operators wearing a reflective glove drive a crane simply by moving their hand through the desired path. A crane-mounted camera tracks the glove and its position is used to drive the crane. This paper presents an initial investigation of the hand-motion crane control interface with double-pendulum payloads. Experimental results from a 10-ton industrial bridge crane demonstrate the utility of the interface and oscillation-contr . . .ol method. © 2012 AACC American Automatic Control Council) Daha fazlası Daha az

Nonlinear finite element reliability analysis of Concrete-Faced Rockfill (CFR) dams under static effects

Kartal M.E. | Bayraktar A. | Başaga H.B.

Article | 2012 | Applied Mathematical Modelling36 ( 11 ) , pp.5229 - 5248

The response of concrete slab on Concrete-Faced Rockfill (CFR) dams is very important. This study investigates the reliability of the concrete slab on a CFR dam by the improved Rackwitz-Fiessler method under static loads. For this purpose, ANSYS finite element analysis software and FERUM reliability analysis program are combined with direct coupled method and response surface method. Reliability index and probability of failure of the concrete are computed in the all critical points of the concrete slab by dam height. This study is also expanded for the reliability of CFR dams including different concrete slab thickness. In addition . . . to the linear behavior, geometrically and materially non-linear responses of the dam are considered in the finite element analysis which is performed with reliability analysis. The Drucker-Prager method and the multi linear kinematic hardening method are, respectively, used for concrete slab and for rockfill and foundation rock. Finite element model used in the analyses includes dam-reservoir-foundation interaction. Reservoir water is modeled by the Lagrangian approach. Welded and friction contact based on the Coulomb's friction law are considered in the joints of the dam. One-dimensional two noded contact elements are used to define friction. The self-weight of the dam and the hydrostatic pressure of the reservoir water are considered in the numerical solutions. According to this study, hydrostatic pressure, nonlinear response of the rockfill and the decrease in the concrete slab thickness reduce the reliability of the concrete slab of the CFR dam. Besides, the CFR dam models including friction are safer than the models including welded contact in the joints. © 2011 Elsevier Inc Daha fazlası Daha az

Anomalous quartic ZZ?? couplings in ?p collision at the LHC

Sahin I. | Sahin B.

Article | 2012 | Physical Review D - Particles, Fields, Gravitation and Cosmology86 ( 11 ) , pp.5229 - 5248

We investigate the constraints on the anomalous quartic ZZ?? couplings through the process pp›p?p›p?qZX at the LHC. Taking into consideration various forward detector acceptances and integrated LHC luminosities, we find 95% confidence level bounds on the anomalous coupling parameters. We show that the bounds on these couplings are at the order of 10-6GeV-2 which are about four orders of magnitude more restricted with respect to current experimental bounds. © 2012 American Physical Society.

An achondroplasic case with foramen magnum stenosis, hydrocephaly, cortical atrophy, respiratory failure and sympathetic dysfunction

Ozcetin M. | Arslan M.T. | Karapinar B.

Article | 2012 | Iranian Journal of Pediatrics22 ( 1 ) , pp.121 - 124

Background: Achondroplasia is a relatively frequent genetic disorder that may lead to limb weakness, motormental retardation, hydrocephaly, and respiratory disorders. In this pathology, foramen magnum stenosis and accompanying disorders like respiratory depression is well documented. Case Presentation: A 2.5 year-old child with the diagnosis of achondroplasia admitted to our clinic with severe respiratory depression, limb weakness, and motor mental retardation as well as sympathetic dysfunction. In radiologic evaluations, severe foramen magnum stenosis was detected. The patient was operated and posterior fossa decompression was acco . . .mplished to prevent compression of respiratory centers and neurons. Conclusion: This case is unique with the narrowest foramen magnum reported up to date and the sympathetic dysfunction which is not reported as a complication in achondroplasic patients. The authors review the relevant literature, focusing on the indications for cervicomedullary decompression in infants with achondroplasia. © 2012 by Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, All rights reserved Daha fazlası Daha az

Electromagnetic properties of the neutrinos in ?p collision at the LHC

Sahin I.

Article | 2012 | Physical Review D - Particles, Fields, Gravitation and Cosmology85 ( 3 ) , pp.121 - 124

We have investigated nonstandard ??¯? and ??¯?? couplings via ??¯ production in a ?p collision at the LHC. We obtain 95% confidence level bounds on ??¯? and ??¯?? couplings by considering three different forward detector acceptances: 0.0015

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