Effects of 8 Weeks of Plyometric Exercise on Certain Physiological Parameters and Performance of Swimmers

In this study, it is aimed to review the effects of 8 week plyometric exercises on certain physiological parameters and freestyle swimming performance of swimmers of age 10-11 who practice swimming with a licence in city of Van. Study group has been created by 24 male volunteer swimmers who practice swimming with a licence in city of Van. 24 volunteer athletes aged 10-11, who are licenced swimmers for two years and who exercise regularly 5 days a week have been selected for the study. The athletes are randomly divided into experimental and control groups of 12. Throughout the study, in addition to swimming exercises, experimental group is scheduled to 3 days a week plyometric exercise program. Control group is not given any additional exercise except from the swimming exercises. It is seen that the obtained data does not show normal distribution and non-parametric tests of Mann Whitney U and Wilcoxon Test are used for data analysis. Significance level is taken as p0,05).      As a result, it is seen that the 8 week plyometric exercise has a significant effect on vertical leap and even though not statistically significant, it is pondered that it has a positive effect on freestyle swimming duration of experimental group, compared to that of control group

Vaccination in Individuals with Multiple Sclerosis – Part I

Multiple sclerosis (MS) is an autoimmune and demyelinating disease of the central nervous system. It is a chronic disease, and in the evaluation of all other health and vital processes, decisions should be made by considering the disease process and the drugs used by the patient. Since vaccination can be performed at every stage of life, from childhood to adulthood, immune system activity, except where it is characteristic of the vaccine, should be reviewed in patients with MS. In this review, the applications of different vaccines in individuals with MS are discussed in two separate sections

Kavalalı Mehmet Ali Paşa Yönetimine Karşı Filistin Muhalefeti

1831 yılında Osmanlı yönetimine isyan eden Mısır Valisi Mehmet Ali Paşa Suriye ve Filistin bölgesinin yönetimini zorla ele geçirdi. Buralarda merkezi otoriteyi güçlendirmeye, vergi sistemini düzenlemeye ve zorunlu askerlik sistemini uygulamaya çalıştı. Bu faaliyetleri bölge halkını tedirgin etti. İnsanların tepkisi kısa sürede büyük bir isyana dönüşerek Mısır yönetimini oldukça zor bir durumda bıraktı. Biz bu çalışmamızda Mısır yönetiminin Filistin’de tesis etmeye çalıştığı idari sistemin Filistin halkını nasıl etkilediğini ve bu etkinin neden bir isyana dönüştüğünü anlatmaya çalışacağız

INVESTIGATION OF WEAR BEHAVIOUR OF PLASMA NITRIDED X40CrMoV5-1 HIGH ALLOY STEEL

X40CrMoV5-1 high-alloyed steel was plasma nitrided for different treatment times (3h, 5h and 7h) and temperatures (450, 500 and 550 degrees C) under at a constant gas mixture (75% H-2 + 25% N-2). The plasma nitriding properties of X40CrMoV5-1 high-alloyed steel have been examined by evaluating phase composition, hardness profile, compound layer thickness, case depth and wear strength. It was found that double layers (compound and diffusion) formed on the surface of the samples and increasing of treatment time and temperature has increased the layers thicknesses. It was found that plasma nitriding improves the wear strength, which depends on thicknesses and hardness of the diffusion layer, but the compound layer reduces the wear resistance by breaking off and forming abrasive particles because of the high hardness

Effect of the surface nanocrystallization on tribological behavior of the Cu based bimetallic materials (CuPbSn)

In this study, ultrasonic impact treatment was used to improve the tribological behavior of copper-based bimetallic materials that are used in internal combustion engine bearings and bushes. Bimetallic materials were obtained by coating three different CuPbSn alloys by sintering on the material surfaces of carbon steel substrate. After the sintering process, bimetallic materials were treated by ultrasonic impact process. As a result of the metallographic examination, sintered layers have uniform structure along the cross-section of the bimetallic materials. In addition, it was determined that the porosity of sintered materials decreased after the ultrasonic impact treatment. Due to the grain refinement and work hardening, higher hardness was obtained in the fine-grained layer. The hardness of the ultrasonic impact treated samples always higher than the untreated material. Because of the high surface hardness, ultrasonic impact treated samples showed higher wear resistance. The highest wear resistance was detected in the samples with the highest Sn content. Because Sn and Cu combine to form Cu3Sn intermetallic phase in Cu-Pb alloys and Cu3Sn increases the strength of the Cu-Pb alloys. Thus, increasing the Sn content in the Cu-Pb alloy resulted in the wear resistance increase. Furthermore, the formation of the SnO2 intermetallic phase on the sample surface has a significant effect on the wear resistance increase by preventing adhesion

Exenatide-Induced Acute Renal Failure: A Case Report

Exenatide is a glucagon-like peptide-1 receptor agonist that is commonly used in the treatment of type II diabetes mellitus for its effects on the incretin system. The use of exenatide is also related to weight loss and it has reportedly been known to induce acute renal failure (ARF) according to clinical reports. We observed ARF and severe weight loss two months after beginning the treatment with exenatide in a 59-year-old female patient with type II diabetes mellitus. We present this case in which ARF was considered to be a rare adverse effect of exenatide use. In conclusion, renal functions should be closely monitored, especially in patients prescribed nephrotoxic agents and for those with a high risk of nephropathy and dehydration due to their treatment with exenatide. The usage of this drug should also be carefully planned in these patients. Turk Jem 2013; 17: 68-7

INHIBITION OF CARBONIC ANHYDRASE I AND II WITH TOTAL ANTHOCYANINS EXTRACTED FROM SWEET CHERRY CULTIVARS

Total anthocyanins were extracted from six sweet cherry cultivars grown in Sakarya, Turkey. In vitro inhibition effects of the extracted total anthocyanins on purified carbonic anhydrase I and II were investigated using CO2 as a substrate. All the extracted total anthocyanins inhibited the activity of the human carbonic anhydrase (hCA) I and II enzymes. Among all the cultivars, 'Karakiraz' was found to be the most active on both hCA I (IC50 = 30.59 mu g/mL) and hCA II activity (IC50 = 44.52 mu g/mL). Additionally, all the cultivars have higher inhibitory activity on hCA I than hCA II

LOW-TEMPERATURE NITRIDING BEHAVIOR OF COMPRESSIVE DEFORMED AISI 316Ti AUSTENITIC STAINLESS STEELS

The effects of compressive cold deformation under the quasi-static loads on the nitride formation, nitride layer growth and surface hardness properties were researched in this study. Martensite structure did not form in AISI 316Ti stainless steel as a result of quasi-static deformation. Diffusion layer did not form in all nitrided samples. Both the deformed and undeformed samples have only compound layer on the surfaces at the low-temperature nitriding conditions (400 degrees C, 7h). According to the X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS) and electron probe microanalysis (EPMA) results, S-phase and chromium nitride (CrN) were formed in the compound layers of the deformed samples. However, CrN did not form in the compound layer of the undeformed sample. The optical microscope (OM) results showed that the compressive cold deformation increased the nitrogen diffusion rate and led to thicker nitrided layer than the undeformed sample under the same plasma-nitriding conditions. All nitrided layers presented higher microhardness values ( similar to 1200 HV) when compared with the untreated sample hardness. It was also verified that the deformation amount did not affect significantly the nitrided layer hardness

Low Field AC Susceptibility Study of YBCO Prepared by Top Seeded Melt Growth

Superconducting bulk YBa2Cu3O7-x (YBCO) material prepared by the melt growth method was characterized by AC susceptibility measurements. The measured susceptibilities were affected by the ac field amplitudes. The measured fundamental susceptibility was compared with the Bean model. An empirical function for the penetration field Hp = Hα (1 - t)β, where t is the reduced temperature, was obtained. Ac losses were determined at fixed temperatures and compared with theoretical calculations. A qualitative agreement was found between the experimental results and theoretical calculations