89 research outputs found

    The Importance of Heat Insulation of Dwellings in Turkey for Energy Efficiency

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    Minimum energy use and minimum environmental pollution are two important basic criteria for achieving environmental sustainability and raising awareness of "design for everybody" approach. Investigating suitable ways of decreasing energy use in life-cycle of buildings gains great importance especially in developing countries. Turkey is an outstanding example of developing countries with its increasing rate of industrialization and urbanization. Although these processes cause more energy to be used, in the last decade it is an accepted fact that the amount of energy and resource use has to be decreased as much as possible. There are some restrictive measures such as Law no 5627 on the Energy Efficiency in order to limit the large amount of energy usage especially in residential areas. According to this Law every building having a total area more than 1000 m2 has to have an Energy Identification Card which includes knowledge about the energy performance of the building. In the light of these, the aim of the study is to evaluate the experiences of Turkey in the field of energy efficiency in order to develop some proposals for further research. The study consists of four sections including a brief introduction about the importance of energy efficiency for a sustainable future. The second section explains the vital importance of heat insulation for the efficient use of energy via some examples. The third section investigates the related Laws and legislations in Turkey and examines the studies undertaken. The paper lasts with a conclusion discussing the real situation in Turkey and proposing some strategies for the future studies in the field of energy efficiency both in physical and socio-cultural terms

    Bazı Organik Materyallerin Fındıkta Verim ve Kalite Üzerine Etkileri

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    Bu araştırma organik fındık üretim olanaklarının araştırılması amacıyla 2002–2006 yılları arasında Giresun’da yürütülmüştür. Tombul çeşidinde kontrol ve konvansiyonel üretimin yanında çiftlik gübresi ve zuruf kompostu uygulamaları denenmiştir. Ayrıca yazıcı böcekler ve fındık kurduna karşı organik uygulamalar yapılmıştır. Çalışma sonucunda; gübre dozları ile verim, meyve ağırlığı, iç ağırlığı, kabuk kalınlığı, randıman, beyazlama oranı, yağ oranı ve protein oranı arasındaki ilişkiler istatistikî olarak önemli bulunmamıştır. Bu durum gübre dozlarının meyve kalitesine etkisinde uygun doz seçimini zorlaştırmıştır. Ancak verim ve meyve kalite değerleri bakımından konvansiyonel uygulamayla birbirine yakınlık gösteren çiftlik gübresinin 25kg/bitki ve zuruf kompostu uygulamasının 50kg/bitki dozları önerilebilir bulunmuştur. Diğer yandan fındık ana zararlılarından olan yazıcı böceklerle mücadelede biyoteknik mücadelenin kültürel uygulamalarla beraber yürütülmesinin zarar yoğunluğunu düşürdüğü tespit edilmiştir. Ancak bu uygulamaların tek başına yeterli olmadığı ayrıca, Temmuz-Ağustos aylarındaki aşırı yağışlarından dolayı dalkıran zarar yoğunluğunun organik yetiştiricilikte arttığı belirlenmiştir

    The effect of iron supplementation on GSH levels, GSH-Px, and SOD activities of erythrocytes in L-thyroxine administration

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    Our aim was to study the effect of iron supplementation on the following aspects of erythrocyte metabolism in experimental hyperthyroidism: glutathione (GSH) levels, glutathione peroxidase (GSH-Px), and superoxide dismutase (SOD) activities. Hyperthyroidism induced by L-thyroxine administrations significantly raised erythrocyte GSH, GSH-Px and SOD levels of the rats (P &#60; 0.001). Likewise, we observed that iron supplementation induced significant rises in erythrocyte GSH, GSH-Px and SOD levels (P &#60; 0.001) as compared with the control group. The erythrocyte GSH, GSH-Px and SOD levels of hyperthyroidism-induced iron-supplemented animals were significantly higher when compared with either the iron-supplemented group (P &#60; 0.001) or the only L-thyroxine-administered hyperthyroid group (P &#60; 0.001, P &#60; 0.05, P &#60; 0.01, respectively). The results of this study show that L-thyroxine administration and/or iron supplementation increases GSH, GSH-Px and SOD levels of erythrocytes.</p

    Ultrasound Findings in a Case of Myeloid Sarcoma of the Breast

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    Myeloid sarcoma is a rare, solid extramedullary tumor originating from immature granulocytic cells or monocytes. Breast involvement without an aleukemic or myeloproliferative disorder is very infrequent. A 21-year-old female patient was admitted with bilateral palpable breast masses for four months. The patient had given birth approximately one year ago. The ultrasonographic examination revealed multiple, oval shaped—some of them with microlubulated margins—hypoechoic, solid masses of which, the largest mass measured 4.5 . 2.5 cm, evaluated as BI-RADS 4. The histopthological examination suggested hematolymphoid neoplasm. In the differential diagnosis of solid breast lesions, myeloid sarcoma should be kept in mind even without hematological findings. Early diagnosis of this tumor is important for the effectiveness of the medical treatment

    First report of the recently introduced, destructive powdery mildew Erysiphe corylacearum on hazelnut in Turkey

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    Hazelnut (Corylus avellana) is Turkey’s most valuable agricultural export, and an essential source of income for many families in the Black Sea Region. In spring 2013, hazelnut leaves, fruit clusters and shoots showing powdery mildew infection symptoms different from those observed previously were discovered in Giresun, Ordu and Trabzon provinces of Turkey. The disease has become epidemic throughout all hazelnut production areas spreading from east to west of the Black Sea Region over the subsequent years. Erysiphe corylacearum was identified as the causal agent of this new and highly destructive powdery mildew based on its morphological characteristics and analyses of DNA sequences of the internal transcribed spacer (ITS) and 28S regions of the ribosomal DNA. Pathogenicity of this species was examined in an infection test and proven for the first time. To our knowledge, this is the first report of E. corylacearum on Corylus avellana worldwide

    The frequency of Duchenne muscular dystrophy/Becker muscular dystrophy and Pompe disease in children with isolated transaminase elevation: results from the observational VICTORIA study

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    IntroductionElevated transaminases and/or creatine phosphokinase can indicate underlying muscle disease. Therefore, this study aims to determine the frequency of Duchenne muscular dystrophy/Becker muscular dystrophy (DMD/BMD) in male children and Pompe disease (PD) in male and female children with isolated hypertransaminasemia.MethodsThis multi-center, prospective study enrolled patients aged 3–216 months with serum alanine transaminase (ALT) and/or aspartate transaminase (AST) levels &gt;2× the upper limit of normal (ULN) for ≥3 months. Patients with a known history of liver or muscle disease or physical examination findings suggestive of liver disease were excluded. Patients were screened for creatinine phosphokinase (CPK) levels, and molecular genetic tests for DMD/BMD in male patients and enzyme analysis for PD in male and female patients with elevated CPK levels were performed. Genetic analyses confirmed PD. Demographic, clinical, and laboratory characteristics of the patients were analyzed.ResultsOverall, 589 patients [66.8% male, mean age of 63.4 months (standard deviation: 60.5)] were included. In total, 251 patients (188 male and 63 female) had CPK levels above the ULN. Of the patients assessed, 47% (85/182) of male patients were diagnosed with DMD/BMD and 1% (3/228) of male and female patients were diagnosed with PD. The median ALT, AST, and CPK levels were statistically significantly higher, and the questioned neurological symptoms and previously unnoticed examination findings were more common in DMD/BMD patients than those without DMD/BMD or PD (p &lt; 0.001).DiscussionQuestioning neurological symptoms, conducting a complete physical examination, and testing for CPK levels in patients with isolated hypertransaminasemia will prevent costly and time-consuming investigations for liver diseases and will lead to the diagnosis of occult neuromuscular diseases. Trial RegistrationClinicaltrials.gov NCT04120168

    Global, regional, and national burden of disorders affecting the nervous system, 1990–2021: a systematic analysis for the Global Burden of Disease Study 2021

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    BackgroundDisorders affecting the nervous system are diverse and include neurodevelopmental disorders, late-life neurodegeneration, and newly emergent conditions, such as cognitive impairment following COVID-19. Previous publications from the Global Burden of Disease, Injuries, and Risk Factor Study estimated the burden of 15 neurological conditions in 2015 and 2016, but these analyses did not include neurodevelopmental disorders, as defined by the International Classification of Diseases (ICD)-11, or a subset of cases of congenital, neonatal, and infectious conditions that cause neurological damage. Here, we estimate nervous system health loss caused by 37 unique conditions and their associated risk factors globally, regionally, and nationally from 1990 to 2021.MethodsWe estimated mortality, prevalence, years lived with disability (YLDs), years of life lost (YLLs), and disability-adjusted life-years (DALYs), with corresponding 95% uncertainty intervals (UIs), by age and sex in 204 countries and territories, from 1990 to 2021. We included morbidity and deaths due to neurological conditions, for which health loss is directly due to damage to the CNS or peripheral nervous system. We also isolated neurological health loss from conditions for which nervous system morbidity is a consequence, but not the primary feature, including a subset of congenital conditions (ie, chromosomal anomalies and congenital birth defects), neonatal conditions (ie, jaundice, preterm birth, and sepsis), infectious diseases (ie, COVID-19, cystic echinococcosis, malaria, syphilis, and Zika virus disease), and diabetic neuropathy. By conducting a sequela-level analysis of the health outcomes for these conditions, only cases where nervous system damage occurred were included, and YLDs were recalculated to isolate the non-fatal burden directly attributable to nervous system health loss. A comorbidity correction was used to calculate total prevalence of all conditions that affect the nervous system combined.FindingsGlobally, the 37 conditions affecting the nervous system were collectively ranked as the leading group cause of DALYs in 2021 (443 million, 95% UI 378–521), affecting 3·40 billion (3·20–3·62) individuals (43·1%, 40·5–45·9 of the global population); global DALY counts attributed to these conditions increased by 18·2% (8·7–26·7) between 1990 and 2021. Age-standardised rates of deaths per 100 000 people attributed to these conditions decreased from 1990 to 2021 by 33·6% (27·6–38·8), and age-standardised rates of DALYs attributed to these conditions decreased by 27·0% (21·5–32·4). Age-standardised prevalence was almost stable, with a change of 1·5% (0·7–2·4). The ten conditions with the highest age-standardised DALYs in 2021 were stroke, neonatal encephalopathy, migraine, Alzheimer's disease and other dementias, diabetic neuropathy, meningitis, epilepsy, neurological complications due to preterm birth, autism spectrum disorder, and nervous system cancer.InterpretationAs the leading cause of overall disease burden in the world, with increasing global DALY counts, effective prevention, treatment, and rehabilitation strategies for disorders affecting the nervous system are needed
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