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Effects of Nitrogen and Zinc Fertilization on Alleviating Cadmium Accumulation in Durum Wheat Grains
No full textCadmium (Cd) accumulation in durum wheat (Triticum durum L.) is of particular concern compared to the other commonly cultivated cereals. This study was conducted to determine the effects of zinc (Zn) and nitrogen (N) applications on grain Cd concentration of durum wheat grown in a Cd contaminated soil. The experimental design consisted of randomized plots with four replications. The treatments included low and adequate (0.05 and 5 mg kg−1) Zn doses, and inadequate, optimal and high (200, 400 and 600 mg kg−1) N doses. Cadmium application rates were 0 and 5 mg kg−1. The findings demonstrated that Cd application caused a significant increase in grain Cd concentrations, and a decrease in straw and grain yields under low and adequate doses of Zn and all N doses. However, increasing N applications with adequate soil Zn caused an increase in the straw and grain yields and a significant decrease in grain Cd concentration. The grain Cd concentration in low Zn and optimum N treatment under Cd application was 6206 µg kg−1, while the grain Cd concentration decreased by 26.3% (4574 µg kg−1) in the Zn and optimum N treatment. In addition, the grain Zn concentration of durum wheat under low soil Zn conditions was decreased in Cd application, whereas the grain Zn concentration increased in Cd application under adequate soil Zn concentration. The results revealed that combined application of N and Zn in Zn deficient soils is highly effective at decreasing Cd accumulation in wheat grains compared to individual applications
Investigation of the effects of syringic acid supplemented to Tris semen diluent on ram semen freezability
No full textTo the best of our knowledge, no research has been conducted to test the effects of syringic acid (SA) on ram semen freezing within the scope of natural antioxidants added to semen extenders. Therefore, this study had two main objectives. First, to test whether adding SA to ram semen freezing extender has a protective effect and contributes positively to sperm kinetic, plasma and acrosome integrity, mitochondrial membrane potential, lipid peroxidation, oxidant and antioxidant and DNA damage parameters after thawing. Second, it was to determine at what concentration the SA supplemented to the extender could be applied by in vitro studies by preserving the fertilization ability of frozen semen at the highest level. In the study, six individuals of Sönmez rams were used. The semen was collected from the rams using an artificial vagina and pooled. The pooled semen was divided into five different groups and extended with 0, 0.5, 1, 2 and 4 mM SA (control C, SA0.5, SA1, SA2 and SA4, respectively). After dilution, the semen samples were kept at 4°C for 3 h, then loaded into 0.25 mL straws and frozen in liquid nitrogen vapour. The SA1 and SA2 groups were higher plasma membrane and acrosome integrity (PMAI), high mitochondrial membrane potential (HMMP), plasma membrane integrity and motility compared to other groups (p <.05). It was observed that SA supplemented to the Tris extender significantly reduced DNA damage, and the lowest values were obtained especially in the SA1 and SA2 treatments (p <.05). Also, lowest MDA level was determined at the SA1 and this was statistically significant compared to SA4 and C (p [removed
Küresel Risk Göstergeleri ile BİST-Turizm Endeksi Arasındaki Nedensellik İlişkisi
Full text linkThe aim of the study is to examine the causal relationship between the CBOE Volatility Index (VIX), oil price, dollar index, and BIST-Tourism index in the context of the Global Economic Policy Uncertainty (EPU) between February 1997 and September 2022. To achieve this aim, the Fourier Toda Yamamoto (TY) causality test and the fractional Fourier TY causality test were used. The Fourier TY causality test results show that there is a one-way causative relationship between the dollar index and the BIST-Tourism index, between the VIX index and the global EPU index, and between the dollar index and oil price. In addition, it is seen that there is a bidirectional causal relationship between the dollar index and the global EPU index. According to the results obtained from the fractional Fourier TY causality test, there is a bidirectional causal relationship between BIST-tourism and global EPU and between BIST-tourism and oil price. In addition, a one-way causality relationship was found from the VIX index to the BIST-Tourism index, from the dollar index to the BIST-Tourism index, from the global EPU to the VIX index, and from the oil price to the dollar index. These results show that the shocks are permanent. Overall, the findings suggest that the interaction between stock prices and both national and global macroeconomic indicators is mainly a consequence of financial globalization. In other words, the liberalization of fund transfers as a result of the liberalization of money and capital markets has led to the emergence of a multidirectional interaction between many variables.Çalışmanın amacı, Şubat 1997-Eylül 2022 döneminde küresel EPU bağlamında VIX endeksi, petrol fiyatı, dolar endeksi ve BİST-Turizm endeksi arasındaki nedensel ilişkiyi incelemektir. Bu amaca ulaşmak için Fourier Toda Yamamoto (TY) nedensellik testi ve kesirli Fourier TY nedensellik testi kullanılmıştır. Fourier TY nedensellik testi sonuçlarına göre, dolar endeksinden BİST-Turizm endeksine, VIX endeksinden küresel EPU endeksine, petrol fiyatı ve dolar endeksinden VIX endeksine doğru tek yönlü nedensellik ilişkisi bulunmaktadır. Ayrıca dolar endeksi ve küresel EPU endeksi arasında çift yönlü nedensellik ilişkisinin olduğu görülmektedir. Kesirli Fourier TY nedensellik testinden elde edilen sonuçlara göre BIST-Turizm ve küresel EPU ile BIST-Turizm ve petrol fiyatı arasında çift yönlü nedensellik ilişkisi vardır. İlave olarak VIX endeksinden BIST-Turizm endeksine, dolar endeksinden BIST-Turizm endeksine, küresel EPU’dan VIX endeksine ve petrol fiyatından dolar endeksine doğru tek yönlü nedensellik ilişkisi saptanmıştır. Elde edilen bu sonuçlar şokların kalıcı olduğunu göstermektedir. Genel olarak, bulgular, hisse senedi fiyatları ile hem ulusal hem de küresel makroekonomik göstergeler arasındaki etkileşimin esas olarak finansal küreselleşmenin bir sonucu olduğunu göstermektedir. Diğer bir deyişle, para ve sermaye piyasalarının serbestleşmesi sonucunda fon transferlerinin serbestleşmesi, birçok değişken arasında çok yönlü bir etkileşimin ortaya çıkmasına neden olmuştur
MXene-based Ti2C/Ta2C lateral heterostructure: an intrinsic room temperature ferromagnetic material with large magnetic anisotropy
No full textTwo-dimensional (2D) lateral heterostructures (LH) combining Ti2C and Ta2C MXenes were investigated by means of first-principles calculations. Our structural and elastic properties calculations show that the lateral Ti2C/Ta2C heterostructure results in a 2D material that is stronger than the original isolated MXenes and other 2D monolayers such as germanene or MoS2. The analysis of the evolution of the charge distribution with the size of the LH shows that, for small systems, it tends to distribute homogeneously between the two monolayers, whereas for larger systems electrons tend to accumulate in a region of ∼6 Å around the interface. The work function of the heterostructure, one crucial parameter in the design of electronic nanodevices, is found to be lower than that of some conventional 2D LH. Remarkably, all the heterostructures studied show a very high Curie temperature (between 696 K and 1082 K), high magnetic moments and high magnetic anisotropy energies. These features make (Ti2C)/(Ta2C) lateral heterostructures very suitable candidates for spintronic, photocatalysis, and data storage applications based upon 2D magnetic materials
Investigation of cytotoxic properties of some isoindole-related compounds bearing silyl and azide groups with in vitro and in silico studies
No full textThis study aims to evaluate the synthesis of isoindole-1,3-dione analogues and their cytotoxic potential. A549 and HeLa cells exposed to 250–100–50–25 µM doses of each derivative were incubated for 24, 48, and 72 h. The cytotoxicity of the isoindole-1,3-dione derivatives was analyzed using the cell growth inhibition assay and the cell membrane damage test. (3aR,5R,6R,7aS)-5-Azido-2-benzyl-6-hydroxyhexahydro-1H-isoindole-1,3(2H)-dione (1d), (3aR,5R,6R,7aS)-5-azido-6-((tert-butyldiphenylsilyl)oxy)-2-ethylhexahydro-1H-isoindole-1,3(2H)-dione (2a), and (3aR,5R,6R,7aS)-5-azido-6-((tert-butyldiphenylsilyl)oxy)-2-methylhexahydro-1H-isoindole-1,3(2H)-dione (2b) compounds inhibited the growth of the A549 and HeLa cells caused membrane damage and exhibited a dose-dependent cytotoxic effect on lung and cervical carcinoma cells. The effect of tert-butyldiphenylsilyl (TBDPS) groups on cytotoxicity was observed in compounds 2a and 2b, but not in the other compounds. Considering the effect of groups attached to the nitrogen atom, the best activity was exhibited in 2b molecule to which the methyl group is attached. Additionally, the interactions of compounds (3aR,5R,6R,7aS)-5-azido-6-hydroxy-2-methylhexahydro-1H-isoindole-1,3(2H)-dione (1b), 1d, 2a and 2b with mammalian rapamycin target, human ribosomal S6 kinase 1 and human epidermal growth factor receptor were investigated by molecular docking studies,. According to the docking results, 2a and 2b compounds containing a TBDPS group have stronger binding energies than 1b and 1d compounds against all target receptors
Effectiveness of animation-based video modeling on daily living skills teaching to individuals with intellectual disabilities
No full textThe aim of the study was to investigate the effectiveness of an animation-based teaching package on the acquisition of three daily living skills based on the performance of three middle school students with mild or moderate intellectual disability. An animation-based teaching package was designed to include explicit instructional procedures and was developed and tested by the researchers within the scope of the study in order to meet the specific needs of the target group. A multiple probe across behaviors design was applied for this single-subject research in order to investigate the effect of an animation-based daily life skills teaching package on the learning of culinary skills by three middle school students with ID. The culinary skills were sandwich preparation, brewing tea, and pouring tea. The participants in the study showed overall improvement in their task performance following the intervention. The results revealed animation-based video modeling to be an effective method in improving the acquisition of daily living skills
The Description of Traditional and Modern Society in the Shadow of Capitalism: A Research on ‘Asterix: The Mansions of the Gods’
Full text linkBu çalışmada 2014 yılında vizyona giren Asteriks: Roma Sitesi adlı animasyon filminde geleneksel ve modern toplumun nasıl tasvir edildiği ile kapitalizmin etkisiyle geleneksel toplumun modern topluma nasıl evrildiği sorularına sosyolojik film eleştirisinin imkanlarından yararlanılarak yanıt bulunması amaçlanmıştır. Çalışmanın sonucunda, geleneksel toplumun doğayla iç içe, nüfusu az ve birbirlerini tanıyan insanlardan oluşan, geçimlik ekonominin ve sabit toplumsal rollerin geçerli olduğu bir yapı olarak tasvir edildiği anlaşılmıştır. Modern toplumun ise kalabalık kentlerde yaşayan, tüketimin belirleyici olduğu kapitalist ekonomik ilişkilere sahip, toplumsal hareketliliğin fazla olduğu ve son derece hızlı yaşanan bir yapı olarak betimlendiği görülmüştür. Ayrıca, geleneksel bir toplumun kapitalist ekonomik ilişkilerin geçerli olduğu kent merkezli modern topluma karşı direnebilmesinin zor olduğu sonucuna ulaşılmıştır.In this study, it is aimed to find answers to the questions of how traditional and modern society is depicted, and how traditional society evolved into modern society with the effect of capitalism in the animated movie Asterix: The Mansions of the Gods, which was released in 2014, by using the opportunities of sociological film criticism. As a result of the study, it has been understood that the traditional society is depicted as a structure that is intertwined with nature, consisting of people who know each other, with a small population, and where a subsistence economy and fixed social roles are valid. On the other hand, it has been seen that modern society is described as a structure that lives in crowded cities, has capitalist economic relations where consumption is determinant, has high social mobility and lives extremely fast. In addition, it has been concluded that it is difficult for a traditional society to resist against the city-centered modern society in which capitalist economic relations are valid
Energies of the ground and excited states of confined two-electron atom in finite potential well
No full textFor the ground and excited configurations, we have carried out the energy eigenvalues and corresponding wavefunctions of two-electron atom enclosed by finite confining potential by using Quantum Genetic Algorithm (QGA) procedure and Hartree-Fock Roothaan (HFR) method. Besides, we have analysed in detail orbital energies and probabilities of finding electron for the configurations 1S (1s2), 3S (1s2s), 3P (1s2p), 3D (1s3d) and 3F (1s4f). The results reveal that the potential barrier height plays a significant role on average energies, state energies, orbital energies and probabilities of finding electrons in orbitals. As dot size is extremely small and extremely large, the energies for 1snl configurations are getting close to each other, but between these two extreme situations they are separating from each other. While going to higher excited states, singlet and triplet states are almost the same due to the weakening of the exchange energy
New integral inequalities for s-convex functions of the second sense via the caputo fractional derivative and the caputo–fabrizio integral operator
No full textVarious integral inequalities for s-convex functions in the second sense are obtained by means of the Caputo fractional derivative and the Caputo–Fabrizio integral operator. Some generalizations of the Hermite–Hadamard type inequalities including the Caputo–Fabrizio integral operator are expressed for the functions whose derivatives are s-convex. Moreover, some inequalities involving these fractional operators are stated for the product of these functions. Inequalities involving special means and the digamma function are given as applications
Comparison of garlic and onion extract-derived gold nanoparticles: Characterization and anticancer activity
No full textThe present study aims to probe the antioxidative and anticancer activities of gold nanoparticles (AuNPs) reduced by Allium cepa L. (onion-O) and Allium sativum L. (garlic-G) extracts. Versatile analyzes were employed to evaluate the morphological and hydrodynamic properties of the particles, as well as to determine their bioactive components and radical scavenging activities. The biological effects of particles such as toxicity, proliferation, motility, and cell-death mechanism were tested in vitro on fibroblast (L929) and different cancer cell lines. The size range of the spherical particles prepared in three groups for each plant extract was found to vary between 5-10 nm and 7–18 nm for garlic and onion respectively, depending on the extract amount. The particles were also found to be well-dispersed and colloidally stable in aqueous media. Gallic acid was the common phenolic compound in the extracts. The radical scavenging properties of the particles increased depending on the extract amount, and the effect was greater in those synthesized with onion extract. When comparing different types of AuNPs, garlic-reduced AuNPs (GAuNPs) had a more stable effect on cancer cells than onion-reduced AuNPs (OAuNPs). Fluorescence staining showed that nanoparticles caused relatively similar necrotic responses in WiDr cells. However, OAuNPs triggered apoptosis to a greater extent in MCF-7 cells than GAuNPs. Both types of particles inhibited cell migration in both healthy and cancerous cells. In sum, both AuNPs exhibited cytotoxicity through their ability to modulate proliferation, apoptosis, and motility.