142 research outputs found

    What to smooth: Rate of interest or the foreign exchange? Turkish monetary policy under turbulent times

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    Cataloged from PDF version of article.This paper studies the new monetary stance of the Central Bank of Republic of Turkey (CBRT) during the Great Recession. We note that characteristics of the post-1997 “great moderation” revealed interest rate smoothing as a valid policy option for the inflation targeting central banks. Utilizing econometric analyses on a general form of a Taylor Rule, we search for the relative weights of the objective function of the CBRT over Jan 2010 – Dec 2013. We find that over the great recession, the CBRT’s focus on “interest smoothing” had been maintained; and yet the burden of adjustment fell disproportionately on the foreign exchange markets. Furthermore, weak credibility of the CBRT, lack of a simple policy rule, and noisy policy communications evidence that pre-requisites of the interest rate smoothing are not being fulfilled. Inevitable sharp policy corrections that follow smoothing periods prove insufficient against the voluminous global flows

    The absence of plasma in “spark plasma sintering”

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    Spark plasma sintering (SPS) is a remarkable method for synthesizing and consolidating a large variety of both novel and traditional materials. The process typically uses moderate uni-axial pressures (<100 MPa) in conjunction with a pulsing on-off DC current during operation. There are a number of mechanisms proposed to account for the enhanced sintering abilities of the SPS process. Of these mechanisms, the one most commonly put forth and the one that draws the most controversy involves the presence of momentary plasma generated between particles. This study employees three separate experimental methods in an attempt to determine the presence or absence of plasma during SPS. The methods employed include: in-situ atomic emission spectroscopy, direct visual observation and ultra-fast in-situ voltage measurements. It was found using these experimental techniques that no plasma is present during the SPS process. This result was confirmed using several different powders across a wide spectrum of SPS conditions

    Management of peripheral facial nerve palsy

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    Peripheral facial nerve palsy (FNP) may (secondary FNP) or may not have a detectable cause (Bell’s palsy). Three quarters of peripheral FNP are primary and one quarter secondary. The most prevalent causes of secondary FNP are systemic viral infections, trauma, surgery, diabetes, local infections, tumor, immunological disorders, or drugs. The diagnosis of FNP relies upon the presence of typical symptoms and signs, blood chemical investigations, cerebro-spinal-fluid-investigations, X-ray of the scull and mastoid, cerebral MRI, or nerve conduction studies. Bell’s palsy may be diagnosed after exclusion of all secondary causes, but causes of secondary FNP and Bell’s palsy may coexist. Treatment of secondary FNP is based on the therapy of the underlying disorder. Treatment of Bell’s palsy is controversial due to the lack of large, randomized, controlled, prospective studies. There are indications that steroids or antiviral agents are beneficial but also studies, which show no beneficial effect. Additional measures include eye protection, physiotherapy, acupuncture, botulinum toxin, or possibly surgery. Prognosis of Bell’s palsy is fair with complete recovery in about 80% of the cases, 15% experience some kind of permanent nerve damage and 5% remain with severe sequelae

    Nutritional rickets and vitamin D deficiency in infants, children and adolescents

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    PubMed ID: 20526242Nutritional rickets continues to be a public health problem in many countries despite the presence of cheap and effective means of preventing the disease. Deficiency of vitamin D is associated with rickets in growing children and osteomalacia in adults. Vitamin D deficiency is attributed to a variety of causes including diet, atmospheric pollution, religious pratices that restrict sunlight exposure (clothing), geographic latitude and altitude, season, and time of the day. The clinical findings of rickets can vary among stages of the disease. It is recommended that healthy infants, children and adolescents take at least 400 IU vitamin D per day to prevent rickets and vitamin D deficiency. Pediatricians and other healthcare professionals should try to ensure that children and adolescents receive daily vitamin D requirements appropriate for their risk factors, traditions, and customs. Additionally, it is important to use every opportunity to ensure that effective preventive strategies are put in practice
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