Karanlık konakta ne var?

M. Akil Koyuncu'nun Nef takma adıyla Son Saat'te tefrika edilen Karanlık Konakta Ne Var? adlı romanıTelif hakları nedeniyle romanın tam metni verilememiştir

Determination of the cold storage conditions of some apple cultivars

Bu araştırma 2000 2002 yıllan arasında Eğirdir Bahçe Kültürleri Araştırma Enstitüsü ve Süleyman Demirel Üniversitesi Ziraat Fakültesi Bahçe Bitkileri Bölümü Derim Sonrası Fizyoloji Laboratuvarında yürütülmüştür. Çalışmada M9 anacı üzerine aşılı Granny Smith, Imparatore ve Idared elma çeşitlerinin soğukta depolanma koşulları incelenmiştir. Uygun depolama koşulunu belirlemek için iki farklı zamanda derilen elmalar ilk yıl 0 oC ve % 90-95 nispi nem , ikinci yıl -1, 0 ve +2 oC sıcaklık ve yine % 90-95 nispi nem koşullarına sahip üç farklı soğuk odada 6 ay süreyle depolanmışlardır. Depolama boyunca birer ay aralıklarla depodan çıkartılan örneklerde ağırlık kaybı, meyve eti sertliği, suda çözünebilir kuru madde, titre edilebilir asitlik ve renk değerleriyle beraber fizyolojik ve patojen kaynaklı bozulmalar incelenmiştir. Deneme sonuçlarına göre Eğirdir ekolojisinde M9 anacı üzerinde yetiştirilen Granny Smith, Imparatore ve Idared elma çeşitlerinin 0 oC sıcaklık ve % 90-95 nispi nem koşullarında 5-6 ay depolanabileceği saptanmıştır.This research was carried out at Horticulture Research Institute of Egirdir and Postharvest Physiology Lab. of Department of Horticulture, Faculty of Agriculture, University of Süleyman Demirel between 2000 and 20002. Storage conditions of apple varieties Granny Smith, Imparatore and Idared grafted on M9 rootstock were investigated. In order to determine the optimum storage condition, these varieties harvested two different stage were stored at 0 Ctemperature and 90-95%relative humidity in the first year, and at -1, 0 and +2 Cand 90-95% RHin the second year for 6 months. During the storage period, weight loss, fruit flesh firmness, total solible solid, titretable acidity, colorimeter values (L*, a*, b*) and physiological disorders of apples taken from storage by montly intervals were examined.According to the storage results, it is determined that Granny Smith, Imparatore and Idared apple varieties can be stored at 0 Ctemperature and 90-95%relative humidity for 5-6 months

Comparative Impact of SiO2 and TiO2 Nanofillers on the Performance of Thin Film Nanocomposite Membranes

Nanoparticle (NP) additions can substantially improve the performance of reverse osmosis and nanofiltration polyamide (PA) membranes. However, the relative impacts of leading additives are poorly understood. In this study, we compare the effects of TiO2 and SiO2 NPs as nanofillers in PA membranes with respect to permeate flux and the rejection of organic matter (OM) and salts. Thin‐film nanocomposite (TFN) PA membranes were fabricated using similarly sized TiO2 15 nm and SiO2 (10 – 20 nm) NPs, introduced at four different NP concentrations (0.01, 0.05, 0.2, and 0.5% w/v). Compared with PA membranes fabricated without NPs, membranes fabricated with nanofillers improved membranes hydrophilicity, membrane porosity, and consequently the permeability. Permeability was increased by 24 and 58% with the addition of TiO2 and SiO2, respectively. Rejection performance and fouling behavior of the membranes were examined with salt (MgSO4 and NaCl) and OM (humic acid [HA] and tannic acid [TA]). The addition of TiO2 and SiO2 nanofillers to the PA membranes improved the permeability of these membranes and also increased the rejection of MgSO4, especially for TiO2 membranes. The addition of TiO2 and SiO2 to the membranes exhibited a higher flux and lower flux decline ratio than the control membrane in OM solution filtration. TFN membranes\u27 HA and TA rejections were at least 77 and 71%, respectively. The surface change properties of NPs appear to play a dominant role in determining their effects as nanofillers in the composite membrane matrix through a balance of changes produced in membrane pore size and membrane hydrophilicity

The Evaluation of the Role of Beta-Hydroxy Fatty Acids on Chronic Inflammation and Insulin Resistance

β-hydroxy fatty acids are a major component of lipid A moiety of lipopolysaccaride. We aimed to investigate the role of free β-hydroxy fatty acids on inflammation, as well as to evaluate their effects on cytokine release from human blood cells, and whether they exist in plasma of patients with chronic inflammatory diseases with/without insulin resistance. Peripheral venous blood was incubated with β-hydroxy lauric and β-hydroxy myristic acids (each 100 ng, 1 μg, 10 μg/mL) up to 24 hours. Cytokines were measured from culture media and plasma. Free fatty acids and biochemical parameters were also measured from patients' plasma. Only β-hydroxy lauric acid significantly stimulated interleukin-6 production at 10 μg/mL compared to control (533.9 ± 218.1 versus 438.3 ± 219.6 pg/mL, P < .05). However, free β-hydroxy lauric and myristic acids were not found in patients' plasma. Therefore, free β-hydroxy lauric and myristic acids do not seem to have a role on sterile inflammation in chronic inflammatory diseases associated with insulin resistance

A Note on the Macroeconomic Consequences of Ethnic/Racial Tension

While many studies stressed the importance of ethnic fractionalization on long-term economic growth, neither ethnic fractionalization always leads to ethnic conflict nor the intensity of conflict is constant over time. To address this potential bias, we construct an ethnic/racial tension index by using the number of US news articles that contain certain keywords. Utilizing this index we test the predictions of a simple theoretical model in a Markov Switching framework which allows to identify the impact of ethnic/racial tension in different states of the economy. Consistent with our theoretical predictions, results show that the magnitude of the impact of ethnic/racial tension is larger during low-growth periods

Submarine and coastal karstic groundwater discharges along the Southwestern Mediterranean coast of Turkey

A 120 km-long part of the southwestern coast of Turkey, with well-developed karst terrain in contact with the sea, has been investigated by systematic diving surveys to determine the submarine groundwater discharges (SGDs). The physical, chemical and isotopic data have been used to determine the rate of the fresh groundwater end member (FEM) and its temporal dynamics. About 150 SGDs have been detected by diving surveys employed mostly up to a depth of 30 m below sea level (bsl). Among those, 15 SGDs are in the form of coastal or submarine caves with entrances ranging between sea surface and 40 m bsl. The FEM contribution in SGDs ranges from a few percent to more than 80%. Stable isotope data suggest a range of mean recharge area elevations extending from the coast to more than 1,000 m inland. In many of the SGDs, the FEMs are characterized by tritium-based residence times ranging from recent to several decades. Hypothetical geochemical calculations of mixing between freshwater and seawater end members reveal that more than 45% of freshwater contribution is required for karst development in the SGDs. Models suggest a threshold pH of 7.6 or lower for the carbonate rock dissolution. © 2010 Springer-Verlag

Investigation of pre‑treatment techniques to improve membrane performance in real textile wastewater treatment

Membrane technology has a significant role in textile wastewater treatment considering the modular design of the membrane processes that enables to conceive a complete treatment scheme. The study presents a comparative study of microfiltration (MF) (0.2 µm and 0.05 µm), ultrafiltration (UF), ozonation (0.1, 0.2 g/L ozone), ultraviolet (UV) irradiation and titanium dioxide (TiO2) (0.05, 0.15, 0.3, 0.5 g/L TiO2) and zeolite adsorption (125, 250, 500 mL/min flow rates) processes as pre-treatment prior to nanofiltration (NF) and reverse osmosis (RO) membranes for the treatment of real textile washing wastewater (WW). Experiments demonstrated that the applied pre-treatment methods enhanced the flux performance of NF270 and RO membranes except zeolite adsorption. By evaluation of all pre-treatment alternatives, it was seen that the best chemical oxygen demand (COD) removal efficiency (41%) was achieved with MF0.05 membrane. The highest conductivity removal efficiencies were obtained by UV/TiO2 application and with ozonation process the colour of the wastewater was removed at a performance of 80.5%, that was the highest among all pre-treatment applications. Based on the permeate flux and quality, the best pre-treatment method was selected as MF membrane with a pore size of 0.05 µm. Best conductivity removal efficiency was obtained by MF0.05 + XLE membrane combination at 93.6%. Also, considerably high COD removals were achieved with pre-treated NF and RO combinations together with a significant colour elimination (> 98%). In this study, it is aimed to create an efficient system that can be applied in real textile wastewater treatment by creating a combined treatment process

2-[(3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)methyl­idene]indan-1,3-dione

In the title compound, C21H16N2O2, the five-membered heterocyclic ring makes a dihedral angle of 47.06 (6)° with the attached benzene ring, whereas the indan-1,3-dione ring system and the benzene ring are oriented at a dihedral angle of 21.92 (7)°. In the crystal, inversion dimers linked by pairs of C—H⋯O hydrogen bonds generate R 2 2(22) loops. Aromatic π–π stacking inter­actions [centroid–centroid distances = 3.8325 (12)–3.8600 (12) Å] also occur