Determination of Natural Radioactivity in Aggregates from Western Mediterranean Region

Every material found in nature has a specific feature of the radioactivity. Depending on the degree of radioactivity, radioactivity effects are detrimental to human health. The use of these materials in the areas of human life can affect human health. Degree of radioactivity of these materials should be determined and usability of theirs should be controlled in buildings. In this study, determinations of natural radioactivity in aggregates used for construction were examined. As varieties of the aggregate of the region of Western Mediterranean: barite, olivine, tuff, aggregate, pumice, and andesite for the measurement of natural radioactivity was obtained. Materials were ground before they were used to determination of radioactivity and chemical analysis experiments. Of the powderized materials, by gamma-spectroscopic method there were carried out measurements of natural radioactivity in the Institute of Nuclear Sciences, Ege University. Degrees of natural radioactivity of materials that can be used as aggregate obtained from Western Mediterranean region were determined. The degree of radioactivity was compared with the values specified in the standards, the results were compared

Spinal cord tissue detection on the joints of beef carcass in a private abattoir in Southern Turkey

In this study, the distribution of Central Nervous System (CNS) tissue contamination on the joints of beef during cutting of 88 carcass halves in a private slaughterhouse was investigated. In conclusion, the first time in Turkey, the level of contamination of spinal cord tissue as CNS tissue on the joints of beef during cutting the carcasses into the parts was shown. Additionally, high level of contamination risk via the knives used for cutting carcasses, the cutting tables, the moving cutting tables and the aprons was detected

Cystic bone lesions: Histopathological spectrum and diagnostic challenges [Kemiğin Kistik Lezyonları: Histopatolojik Spektrum ve Tanısal Güçlükler]

PubMed ID: 25652560Objective: Bone cysts are benign lesions occurring in any bone, regardless of age. They are often asymptomatic but may cause pain, swelling, fractures, and local recurrence and may be confused with other bone lesions. Material and Method: We retrospectively re-evaluated 143 patients diagnosed with aneurysmal bone cyst (n=98, 68.5%), solitary bone cysts (n=17 11.9%), pseudocyst (n=10.7%), intraosseous ganglion (n=3, 2.1%), hydatid cyst (n=2; 1.4), epidermoid cyst (n=1, 0.7%) and cysts demonstrating “mixed” aneurysmal-solitary bone cyst histology (n=12, 8.4%), and compared them with nonparametric tests. Results: Aneurysmal bone cyst, solitary bone cysts and mixed cysts were frequently seen in the first two decades of life while the others occurred after the fourth decade. Aneurysmal bone cysts, intraosseous ganglion and pseudocysts were more common in women contrary to solitary bone cyst and mixed cysts (the female/male ratio was 1.22, 2 and 1.5 versus 0.7 and 0.5, respectively). Aneurysmal bone cyst, solitary bone cysts and “mixed” cysts were mostly seen in long bones, predominantly the femur, while epidermoid, hydatid and pseudocysts were all seen in fat bones like the vertebra, pelvis and mandible (p=0.001, chi-square). repeat biopsies were performed in 19 cases (13.3%), 84.2% of which were aneurysmal bone cyst (5 conventional, 9 solid, 1 secondary and 1 subperiosteal) and three (15.8%) were mixed cysts (p=0.02, chi-square). Notably, some of them were located in inaccessible areas of pelvis (n=3), femur (n=3) and maxilla (n=2). Conclusion: The most common and challenging intraosseous cysts are aneurysmal bone cysts, particularly the “solid” variant. The “mixed” aneurysmal-solitary bone cyst “subgroup” requires further research with larger series to be defined more thoroughly. © 2015, Federation of Turkish Pathology Societies. All Rights Reserved

Separation of Oxoethanoic Acid from Aqueous Solution by N

Extractability of oxoethanoic acid (glyoxylic acid (GA)) from aqueous solutions, with N-methyl-N,N-dioctyloctan-1-ammonium chloride (Aliquat 336 (A336)) in various diluents, including isoamyl alcohol, octan-1-ol, nonan-1-ol, decan-1-ol, methyl ethyl ketone (MEK), diisobuthyl ketone (DIBK), hexan-2-one, toluene, kerosene, and n-hexane has been investigated. Batch extraction results were calculated and reported as distribution coefficients (K-D), loading factors (Z), and extraction efficiency (E) at T = 298 K. These solvents with using A336 is more effective than a single solvent (K-D >> 1). Hexan-2-one has been found to be the most effective diluent with the highest value of K-D (17.37) at 1.31 mol.kg(-1) concentration of A336. The results of the liquid liquid equilibrium measurements were correlated by a linear solvation energy relationship (LSER) model which takes into account physical interactions and Freundlich and Langmuir equations. Experimental results of the oxoethanoic acid extraction are compared to model results

Non-parametric Analysis of Factors Affecting the Competitive Structure of Europe’s Advanced Football Leagues

The purpose of this study was to determine the competition structure, efficiency, and productivity level of the English, German, Spanish, Italian, French, and Turkish football leagues, which were the most advanced in Europe. In this context, the competitive structure of the leagues was determined by the Concentration index, the Herfindahl–Hirschman index (HHI), and the Entropy index (EI). In addition, it was aimed to find out which leagues exhibit relatively better efficiency and productivity by modeling the factors influencing the level of competition (number of spectators, transfer expenditures, market value of the leagues) in the study. The obtained scores were modeled by non-parametric Data Envelopment Analysis and the Malmquist Total Factor Productivity index to analyze performance levels of the leagues between the years 2009 and 2018. According to the results, the French, Italian, English, Spanish, Turkish, and German leagues were the most competitive, respectively. The French and Turkish leagues provided the highest level of efficiency and productivity with minimum spectator, market value, and transfer expenditure. In the model where the HHI and the EI scores were considered as output variables, while the German league achieved the best productivity level on average, the lowest productivity level occurred in the Italian and Turkish leagues. © Springer Nature Switzerland AG 2020

Gender-related clinical and management differences in patients with chronic heart failure with reduced ejection fraction

Aim Gender-related differences have been described in the clinical characteristics and management of patients with chronic heart failure with reduced ejection fraction (HFrEF). However, published data are conflictive in this regard