Military jet pilots have higher p-wave dispersions compared to the transport aircraft aircrew

Objectives: For the purpose of flight safety military aircrew must be healthy. P-wave dispersion (PWD) is the p-wave length difference in an electrocardiographic (ECG) examination and represents the risk of developing atrial fibrillation. In the study we aimed at investigating PWD in healthy military aircrew who reported for periodical examinations. Material and Methods: Seventy-five asymptomatic military aircrew were enrolled in the study. All the subjects underwent physical, radiologic and biochemical examinations, and a 12-lead electrocardiography. P-wave dispersions were calculated. Results: The mean age of the study participants was 36.15±8.97 years and the mean p-wave duration was 100.8±12 ms in the whole group. Forty-seven subjects were non-pilot aircrew, and 28 were pilots. Thirteen study subjects were serving in jets, 49 in helicopters, and 13 were transport aircraft pilots. Thirty-six of the helicopter and 11 of the transport aircraft aircrew were non-pilot aircrew. P-wave dispersion was the lowest in the transport aircraft aircrew, and the highest in jet pilots. P-wave dispersions were similar in the pilots and non-pilot aircrew. Twenty-three study subjects were overweight, 19 had thyroiditis, 26 had hepatosteatosis, 4 had hyperbilirubinemia, 2 had hypertension, and 5 had hyperlipidemia. The PWD was significantly associated with thyroid-stimulating hormone (TSH) levels. Serum uric acid levels were associated with p-wave durations. Serum TSH levels were the most important predictor of PWD. Conclusions: When TSH levels were associated with PWD, uric acid levels were associated with p-wave duration in the military aircrew. The jet pilots had higher PWDs. These findings reveal that military jet pilots may have a higher risk of developing atrial fibrillation, and PWD should be recorded during periodical examinations

Girişimcilerin bilgi teknolojilerini kullanma nedenlerinin teknoloji kabul modeli kapsamında analizi: Manisa İli örneği

Bilgi teknolojileri, her alanda olduğu gibi, günümüz girişim ve girişimcileri için de vazgeçilmezdir. Bilgi teknolojilerinin işletmelere rekabet gücü kazandırmada ve sürdürülebilirliği kolaylaştırmada sağladığı faydalar kritik ve stratejik konumdadır. Teknolojinin faydalarına ulaşabilmenin, öncelikle teknoloji kullanıcılarının teknolojiyi kabul düzeyi ile yakından ilişkili olduğu söylenebilir. Buradan hareketle bu araştırmanın amacı, Bu araştırmanın amacı, dünyada yeni sektör ve pazarların öncüsü olan girişimcilerin, bilgi teknolojilerini kullanmaya yönelik davranışlarının nedenlerini, Teknoloji Kabul Modeli ve Planlı Davranış Teorisi kapsamında incelemek ve girişimcilerin teknoloji kabul nedenlerini ortaya koymaktır. Araştırma kapsamında Teknoloji Kabul Modeli’nin unsurları yanında, PDK’nın sübjektif normları/toplumsal etkiler ile girişimcilik algıları da araştırma modeline dahil edilerek teknoloji kullanımına yönelik gerçekleşen davranış birçok faktörle birlikte ele alınmaktadır. Ayrıca araştırmada girişimcilerin işletme kurma nedenleri ve girişimciliğe ilişkin algıları da belirlenmeye çalışılmaktadır. Araştırmada veri toplama aracı olarak anket tekniği kullanılmıştır. Araştırmanın örneklemini Manisa’da faaliyet gösteren 188 girişimci oluşturmaktadır. Araştırma sonuçlarına göre, girişimcilerin bilgi teknolojilerini kullanmaya yönelik davranışlarını açıklamada algılanan kullanım kolaylığı ve algılanan faydanın tutumlar üzerinde etkili olmadığı; algılanan fayda ve tutumunun, niyet üzerinde önemli etkisinin olduğu anlaşılmıştır. Ayrıca girişimcilerin bilgi teknolojilerini kullanmaya yönelik niyetlerinin, gerçekleşen davranışlar üzerinde belirleyici olduğu; sübjektif normların, girişimcilerin bilgi teknolojilerine yönelik tutumlarını etkilemediği görülmüştür. Ayrıca, girişimcilerin işletmelerini kurmalarındaki temel nedenin, ekonomik fayda ve yüksek kazanç elde etmek olduğu anlaşılmıştır

Comparison of the Fractional Exhaled Nitric Oxide Levels in Adolescents at Three Schools Located Three Different Distances from a Large Steel Mill

Objectives. Exposure to ambient metals and air pollutants in urban environments has been associated with impaired lung health and inflammation in the lungs. Fractional exhaled nitric oxide (FeNO) is a reliable marker of airway inflammation. In this study, we aimed to compare the FeNO levels of three schools that have different distances from iron and steel industry zone for assessing the effects of heavy metals and air pollution on their respiratory health. Methods. Pulmonary function test and FeNO measurements were evaluated in 387 adolescents in three schools which have different distance from plant. Results. FeNO levels were significantly higher in School I (n=142; 18.89±12.3 ppb) and School II (n=131; 17.68±7.7 ppb) than School III (n=114; 4.28±3.9 ppb). Increased FeNO concentration was related to the distance of iron and steel industry zone in young adults. Conclusion. The FeNO concentrations in school children were inversely proportional to the distance from the steel mill. There are needed some studies that can evaluate the safe distance and legislation must consider these findings

Cutaneous analgesia before transradial access for coronary intervention to prevent radial artery spasm

Conclusion: Cutaneous analgesia before TRA for coronary interventions is associated with a substantial reduction in the RAS and the procedure-related level of patient discomfort

Military jet pilots have higher p-wave dispersions compared to the transport aircraft aircrew

Objectives: For the purpose of flight safety military aircrew must be healthy. P-wave dispersion (PWD) is the p-wave length difference in an electrocardiographic (ECG) examination and represents the risk of developing atrial fibrillation. In the study we aimed at investigating PWD in healthy military aircrew who reported for periodical examinations. Material and Methods: Seventy-five asymptomatic military aircrew were enrolled in the study. All the subjects underwent physical, radiologic and biochemical examinations, and a 12-lead electrocardiography. P-wave dispersions were calculated. Results: The mean age of the study participants was 36.15±8.97 years and the mean p-wave duration was 100.8±12 ms in the whole group. Forty-seven subjects were non-pilot aircrew, and 28 were pilots. Thirteen study subjects were serving in jets, 49 in helicopters, and 13 were transport aircraft pilots. Thirty-six of the helicopter and 11 of the transport aircraft aircrew were non-pilot aircrew. P-wave dispersion was the lowest in the transport aircraft aircrew, and the highest in jet pilots. P-wave dispersions were similar in the pilots and non-pilot aircrew. Twenty-three study subjects were overweight, 19 had thyroiditis, 26 had hepatosteatosis, 4 had hyperbilirubinemia, 2 had hypertension, and 5 had hyperlipidemia. The PWD was significantly associated with thyroid-stimulating hormone (TSH) levels. Serum uric acid levels were associated with p-wave durations. Serum TSH levels were the most important predictor of PWD. Conclusions: When TSH levels were associated with PWD, uric acid levels were associated with p-wave duration in the military aircrew. The jet pilots had higher PWDs. These findings reveal that military jet pilots may have a higher risk of developing atrial fibrillation, and PWD should be recorded during periodical examinations

Arterial stiffness and endothelial inflammation in prediabetes and newly diagnosed diabetes patients

ObjectiveThere is a growing body of data supporting the association between diabetes and microcirculatory disfunction. We aimed to study e-selectin levels, and their associations with serum markers of inflammation and arterial stiffness in prediabetes and newly diagnosed diabetes patients in this study.Subjects and methodsSixty patients (25 females) with a newly established elevated fasting serum glucose [20 impaired fasting glucose (IFG), 20 impaired glucose tolerance (IGT), 20 newly diagnosed diabetes (T2DM)] and 17 healthy controls (13 females) were included in the study. Serum e-selectin and hs-CRP levels, and arterial stiffness parameters of the patients were studied.ResultsFasting serum glucose was the most important predictor of serum e-selectin levels. Pulse wave velocity and central aortic pressures were significantly higher in IFG, IGT and T2DM groups, compared to controls (p = 0.001, < 0.001, 0.013 and 0.015, 0.002, 0.009, respectively). The mean arterial pressure did not show any significant association with serum e-selectin and hs-CRP levels (β coefficient: 0.092, p = 0.358; and β coefficient: 0.189, p = 0.362, respectively).ConclusionPrediabetes patients have increasing e-selectin levels through the diagnosis of T2DM. E-selectin is associated with serum glucose levels. Prediabetic and newly diagnosed diabetics have higher arterial stiffness measurements. Serum e-selectin may be a good marker of endothelial inflammation and dysfunction increasing in parallel with serum glucose levels, predicting future cardiovascular events