33 research outputs found
Enhanced Antibacterial Property by the Synergetic Effect of TiO2 and ZnO Nano-Particles in Biodegradable Hydrogel
In this study, three types of nanocomposite hydrogel were produced by free radical polymerization and chemical bath deposition technique together. TiO2 nanoparticles (NPs) have been incorporated in polymeric matrices in order to provide antimicrobial activity to the biodegradable hydrogel. Then, ZnO NPs have been deposited on the surface of the hydrogel to improve antibacterial activity. Structural and antibacterial properties of above nanocomposites were fully determined by X-Ray diffractometer (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-Ray Spectrometer (EDX), and ASTME-2149 methods. At the reaction time of 60 minutes, nanoZnO particles on hydrogel were fully developed. Zn content of hydrogel was 35.89 at. %, Ti content of hydrogel was also determined as 0.16 at.%. In respect to antibacterial activity tests results, Escherichia coli were more resistant to hydrogel and ZnO nanoflower than Staphylococcus aureus
Effects of Deposition Time on Structural and Morphological Properties of Synthesized ZnO Nanoflowers Without Using Complexing Agent
ZnO nanoflowers have been synthesized by chemical bath deposition technique at different deposition times without using complexing agent, so it is an environmentalist study. Effects of deposition time on structural and morphological properties of ZnO nanoflowers have been investigated by Xray diffraction (XRD) method and Field Emission Scanning Electron Microscope (FESEM). XRD patterns showed that the samples had hexagonal wurtzite structure and polycrystalline nature. Grain sizes, dislocation densities and lattice parameters of the samples have been calculated. According to these results, it has been determined that the ZnO nanoflowers synthesized in very short time like 30 minutes without using complexing agent, showed the best crystallization. When the images of ZnO nanoflowers have been examined, it has seen that the structure is formed continuously and independently from each other by nanorods. It has also seen that these nanorods combine to form a flower-like structure
The Neutrophil-to-Lymphocyte ratio as a marker of recovery status in patients with severe dental infection
The aim of the study was to assess the value of pretreatment neutrophil/lymphocyte (N/L) ratio and mean platelet volume (MPV) and the correlation between these markers with progression in patients with severe odontogenic infection. A cohort of 100 patients with severe odontogenic infection were divided into 2 groups according to their length of hospital stay. The N/L ratio and MPV was measured in all patients. The correlation in all patients between preoperative fever, preoperative antibiotic doses, postoperative antibiotic doses, total antibiotic doses and hospital stay with N/L ratio and MPV were analyzed. The Youden index was used to identify the optimal cut-off value. There were positive and statistically significant correlations between N/L ratio and prolonged hospital stay and postoperative antibiotic doses and total antibiotic doses. The optimum cut ?off level of N/L ratio was 5.19 according to ROC analysis. However, there was no correlation between MPV and any of these parameters. N/L ratio may be used as a prognostic marker for patients with odontogenic infections. These patients may need a higher dose of antibiotics and stay more than 1 day in hospital for the treatment of odontogenic infection when the N/L ratio is detected to be more than 5.19
Yield, protein and nitrogen use efficiency in bread wheat genotypes
The effects of nitrogen fertilization on protein content, yield and nitrogen physiological efficiency (NUE), nitrogen
uptake efficiency (NupE) and nitrogen agronomic efficiency (NutE) of grain for eight wheat (Triticum aestivum L.)
genotypes (Gerek 79, Bezostaja 1, Altay 2000, Bayraktar 2000, Kate A-1, İzgi 2001, Sönmez 2001 and Karahan 99)
were elavuated over a N application range of 0-8 kg N da-1
, on N-deficient soil in Central Anatolian Region during two
growing periods (2007/08, 2008/09). N fertilization increased grain yield and grain protein concentration of all
genotypes in two years. In both years of the study increasing levels of nitrogen applied in different bread wheat varieties
effects on grain yield, protein content, NUE, NupE and NutE was found statistically significant. In the first year of
experiment, average nitrogen use efficiency of bread wheat varieties are analyzed and determined the highest
physiological efficiency of nitrogen is Kate A-1 (47.4) bread wheat variety, nitrogen agronomic efficiency and nitrogen
uptake efficiency were identified highest in İzgi 2001 (14.7 and 0.33) bread wheat variety. In addition, ın the second
year of experiment, on average nitrogen use efficiency of bread wheat varieties are analyzed, determined highest
physiological efficiency of nitrogen is Bayraktar 2000 (50.5) bread wheat variety, nitrogen agronomic efficiency and
nitrogen uptake efficiency were identified highest in Kate A–1 (15.9 and 0.33) bread wheat variety. During investigated
growing years NUE was decreased with increasing nitrogen fertilization
POTASYUM VE ÇİNKOLU GÜBRELEMENİN ENGİNARDA VERİM VE VERİM UNSURLARINA ETKİLERİ
This study was carried out to determine the effects of potassium (0, 60, 120 and 180 kg K2O ha(-1); K2SO4; 50% K2O) and zinc (0 and 30 kg ZnSO4 center dot 7H(2)O ha(-1); ZS; 22% Zn) applied on plant height, main head weight, numbers of head, concentrations of potassium and zinc in leaves and yield of early artichoke variety in Turkmen Village trial area of Agricultural Research Institute of Turkish Republic of Northern Cyprus during 2018-2019 artichoke growing period. According to the results, plant height increased 6.64% (60 kg K2O ha(-1) + 30 kg ZS ha(-1); 90.8 cm) compared to the control (85.3 cm) and 19.9% (120 kg K2O ha(-1) + 30 kg ZS ha(-1); 90.8 cm). Although the main head weight of the plant and the number of head per plant increased depending on the applications, an increasing was determined compared to the control. While the potassium concentrations of leaves increased between 5% and 65% compared to the control (0.44%), zinc concentrations increased by 9% compared to the control with only ZS application. The highest yield (89.720 kg ha(-1)) was obtained by '180 kg K2O ha(-1) + 30 kg ZS ha(-1)' treatment. With this application, the yield increased by 40.9% compared to the control. If the artichoke plant will be grown under similar soil and climatic conditions, '180 kg K2O ha(-1) + 30 kg ZS ha(-1) kg' may be recommended because it increased the properties examined
EFFECTS OF POTASSIUM AND ZINC FERTILIZATION ON THE YIELD AND YIELD COMPONENTS OF ARTICHOKE
This study was carried out to determine the effects of potassium (0, 60, 120 and 180 kg K2O ha(-1); K2SO4; 50% K2O) and zinc (0 and 30 kg ZnSO4 center dot 7H(2)O ha(-1); ZS; 22% Zn) applied on plant height, main head weight, numbers of head, concentrations of potassium and zinc in leaves and yield of early artichoke variety in Turkmen Village trial area of Agricultural Research Institute of Turkish Republic of Northern Cyprus during 2018-2019 artichoke growing period. According to the results, plant height increased 6.64% (60 kg K2O ha(-1) + 30 kg ZS ha(-1); 90.8 cm) compared to the control (85.3 cm) and 19.9% (120 kg K2O ha(-1) + 30 kg ZS ha(-1); 90.8 cm). Although the main head weight of the plant and the number of head per plant increased depending on the applications, an increasing was determined compared to the control. While the potassium concentrations of leaves increased between 5% and 65% compared to the control (0.44%), zinc concentrations increased by 9% compared to the control with only ZS application. The highest yield (89.720 kg ha(-1)) was obtained by '180 kg K2O ha(-1) + 30 kg ZS ha(-1)' treatment. With this application, the yield increased by 40.9% compared to the control. If the artichoke plant will be grown under similar soil and climatic conditions, '180 kg K2O ha(-1) + 30 kg ZS ha(-1) kg' may be recommended because it increased the properties examined
Effects of potassium, magnesium, and sulphur containing fertilizers on yield and quality of sugar beets (Beta vulgaris L.)
Effects of potassium (K), magnesium (Mg), and sulphur (S) containing fertilizers on root yield, refined sugar yield, and K, Mg, and S concentrations of leaf of sugar beet (Beta vulgaris L.) were studied on 3 different locations in Konya province, namely Kuzucu, Karaarslan, and Alakova, in 2004, 2005, and 2006. In the trails, a uniform diammonium phosphate (DAP) + urea application was used as the control treatment, while potassium sulphate and Mg containing Kalimagnesia, were applied at varying rate combinations. Compared to the control treatment (DAP + urea), all fertilizer treatments containing K, Mg, and S increased root yield in the Kuzucu and Alakova locations, while in the Karararslan location only potassium sulphate treatment improved root yield. The Kalimagnesia fertilizer containing all 3 nutrients, namely K, Mg, and S, enhanced root yield by 42% and 39% in the Kuzucu and Alakova locations, respectively. But, this yield-stimulating effect of the Kalimagnesia fertilizer was rate-dependent. Kalimagnesia was also effective in improving the sugar content of the root, while the amino-N levels were not consistently affected by the fertilizer treatments. Despite increases in the leaf concentrations of K, Mg, and S by the tested fertilizers, the changes in the leaf concentrations of these nutrients could not fully explain the increases in root yields. In the discussion of the results, the possible role of basic cation saturation ratios of soils was also taken into consideration. The results indicate that a fertilizer treatment including 81 kg K2O ha(-1), 27 kg Mg ha(-1), and 46 kg S ha(-1) may be recommendable in fertilization of sugar beets, together with regular nitrogen and phosphorus applications, under similar conditions, in order to achieve a balanced mineral nutrition and sustain better root and sugar yields
Uric Acid Levels in Normotensive Children of Hypertensive Parents
This study evaluated uric acid concentrations in normotensive children of parents with hypertension. Eighty normotensive children from families with and without a history of essential hypertension were included. Concentrations of lipid parameters and uric acid were compared. Demographic and anthropometric characteristics were similar in the groups. Systolic and diastolic blood pressure were higher in the normotensive children of parents with hypertension without statistically significant difference (P>0.05). Uric acid concentrations were higher in the normotensive children of parents with hypertension (4.61 versus 3.57 mg/dL, P<0.01). Total cholesterol and triglyceride concentrations were similar in the two groups. Systolic and diastolic blood pressure were significantly higher in control children aged >10 years (P<0.01). Uric acid levels were significantly higher in all children with more pronounced difference after age 10 of years (P<0.001). Positive correlations were found between the level of serum uric acid and age, body weight, body mass index, and systolic and diastolic blood pressure in the normotensive children of parents. The higher uric acid levels in the normotensive children of hypertensive parents suggest that uric acid may be a predeterminant of hypertension. Monitoring of uric acid levels in these children may allow for prevention or earlier treatment of future hypertension
Long-Term Follow-Up of Patients with Male Breast Cancer, Single-Center Experience
WOS: 000469789600002OBJECTIVE Male breast cancer (BC) represents <1% of all BC cases. Our study aimed to define immunohistochemistry (IHC) based surrogate subtype distribution of male BCs, and to define the recurrence pattern and survival among subgroups. METHODS We retrospectively reviewed the medical records of patients with male BC admitted to Ege University School of Medicine, Medical Oncology and Radiation Oncology Clinics between 1998 and 2017. Patient demographics, pathological feature of the primary tumor, adjuvant treatment options, and survival data were analyzed. We defined intrinsic BC subtypes according to estrogen receptor (ER), progesterone receptor (PR), HER-2, and ki-67 status. RESULTS We identified 58 patients with male BC. The median age at diagnosis was 59 years (IQR: 30-78), and median follow-up was 83.7 months. Invasive ductal carcinoma was the most common histology (79.3%). Of the patients, 8.6% presented with stage-4 disease. A total of 24 (41.4%) patients had luminal A-like, 28 (48.3%) had luminal B-like, 2 (3.4%) had HER-2 positive, and 4 (6.9%) had triple negative breast cancer (TNBC). Eighteen deaths were observed during follow-up. The overall survival (OS) and disease-free survival (DFS) rates among BC subgroups were not statistically significant. Median OS was 161 months (95% CI 94.7-228.4)in the patient group. DES was statistically related to initial tumor stage. CONCLUSION The disease onset was found at younger age with more locally advanced setting compared to literature. Luminal predominance was demonstrated. Initial stage but not BC subtypes predict the risk of relapse in patients with male BC