Comparison of the Effect of Different Anesthesia Maintenance on Hemodynamics in Coronary Artery Bypass Grafting Surgery: A Retrospective Cohort Study

Objective:General anesthesia management in coronary artery bypass graft surgery (CABGC) should preserve myocardial function, prevent ischemic damage, and maintain stable hemodynamics. There is not a universally accepted technique for anesthetic management during CABGC. Drugs or drug combinations and maintenance of infusions are decided based on the pathophysiological condition of the patient and the individual preference and experience of the anesthesiologist (1). Although there are many studies about an anesthesia induction in CABGC, studies about anesthetic maintenance are very limited. In this study, we compared the hemodynamic effects of three different methods that were used in anesthetic maintenance in CABGC.Method:The retrospective records of 108 patients in ASA II-III group who underwent elective CABGC were divided into 3 groups according to their anesthetic maintenance methods. Group I was maintained with 1-3% sevoflurane and fentanyl 4 mcg/kg/hour infusion, group II with propofol 1.5-4 mg/kg/hour and fentanyl 4 mcg/kg/hour infusion, and group III with propofol 1.5-4 mg/kg/hour and remifentanil infusion of 0.03 mg/kg/hour. Systolic blood pressure, diastolic blood pressure, mean arterial pressure (MAP) and heart rate (HR) were measured and recorded after induction (T0), after sternotomy (T1), after pericardiotomy (T2), 5 minutes after cardiopulmonary bypass (CPB) (T3), after thorax closure (T4), at the end of the operation (T5). The vasodilator requirements in the time period before CBP and the inotropic agent requirements after CPB were noted.Results:Data of 108 patients (88 men/20 women) were analyzed. Demographic characteristics of the patients were similar in all the groups. Statistical analysis was made among the groups depending on coronary artery bypass graft number, cross-clamp time, total fluid administration, total blood transfusion, total urine volume, inotropic agent requirement after CPB, postoperative central venous pressure, and pre- and postoperative lactate levels; however, there was no statistical difference. There was not change more than 20-25% in MAP and HR in group I than the others.Conclusion:Better hemodynamic results were achived with sevoflurane and fentanyl in the anesthetic maintenance of CABGC

Exponential Type Complex and non-Hermitian Potentials in PT-Symmetric Quantum Mechanics

Using the NU method [A.F.Nikiforov, V.B.Uvarov, Special Functions of Mathematical Physics, Birkhauser,Basel,1988], we investigated the real eigenvalues of the complex and/or $PT$- symmetric, non-Hermitian and the exponential type systems, such as Poschl-Teller and Morse potentials.Comment: 14 pages, Late

The Sariçiçek Howardite Fall in Turkey: Source Crater of HED Meteorites on Vesta and İmpact Risk of Vestoids

The Sariçiçek howardite meteorite shower consisting of 343 documented stones occurred on 2 September 2015 in Turkey and is the first documented howardite fall. Cosmogenic isotopes show that Sariçiçek experienced a complex cosmic ray exposure history, exposed during ~12–14 Ma in a regolith near the surface of a parent asteroid, and that an ~1 m sized meteoroid was launched by an impact 22 ± 2 Ma ago to Earth (as did one third of all HED meteorites). SIMS dating of zircon and baddeleyite yielded 4550.4 ± 2.5 Ma and 4553 ± 8.8 Ma crystallization ages for the basaltic magma clasts. The apatite U-Pb age of 4525 ± 17 Ma, K-Ar age of ~3.9 Ga, and the U,Th-He ages of 1.8 ± 0.7 and 2.6 ± 0.3 Ga are interpreted to represent thermal metamorphic and impact-related resetting ages, respectively. Petrographic, geochemical and O-, Cr- and Tiisotopic studies confirm that Sariçiçek belongs to the normal clan of HED meteorites. Petrographic observations and analysis of organic material indicate a small portion of carbonaceous chondrite material in the Sariçiçek regolith and organic contamination of the meteorite after a few days on soil. Video observations of the fall show an atmospheric entry at 17.3 ± 0.8 kms-1 from NW, fragmentations at 37, 33, 31 and 27 km altitude, and provide a pre-atmospheric orbit that is the first dynamical link between the normal HED meteorite clan and the inner Main Belt. Spectral data indicate the similarity of Sariçiçek with the Vesta asteroid family (V-class) spectra, a group of asteroids stretching to delivery resonances, which includes (4) Vesta. Dynamical modeling of meteoroid delivery to Earth shows that the complete disruption of a ~1 km sized Vesta family asteroid or a ~10 km sized impact crater on Vesta is required to provide sufficient meteoroids ≤4 m in size to account for the influx of meteorites from this HED clan. The 16.7 km diameter Antonia impact crater on Vesta was formed on terrain of the same age as given by the 4He retention age of Sariçiçek. Lunar scaling for crater production to crater counts of its ejecta blanket show it was formed ~22 Ma ago

Investigation of carbonates in the Sutter's Mill meteorite grains with hyperspectral infrared imaging micro-spectroscopy

Synchrotron-based high spatial resolution hyperspectral infrared imaging technique provides thousands of infrared spectra with high resolution, thus allowing us to acquire detailed spatial maps of chemical molecular structures for many grains in short times. Utilizing this technique, thousands of infrared spectra were analyzed at once instead of inspecting each spectrum separately. Sutter's Mill meteorite is a unique carbonaceous type meteorite with highly heterogeneous chemical composition. Multiple grains from the Sutter's Mill meteorite have been studied using this technique and the presence of both hydrous and anhydrous silicate minerals have been observed. It is observed that the carbonate mineralogy varies from simple to more complex carbonates even within a few microns in the meteorite grains. These variations, the type and distribution of calcite-like vs. dolomite-like carbonates are presented by means of hyperspectral FTIR imaging spectroscopy with high resolution. Various scenarios for the formation of different carbonate compositions in the Sutter's Mill parent body are discussed. (C) 2018 Elsevier B.V. All rights reserved.NSF MRI awardNational Science Foundation (NSF)NSF - Office of the Director (OD) [0619759]The author is thankful to the Sutter's Mill meteorite consortium for providing the meteorite samples. IRENI beamline's construction and development was supported by NSF MRI award # 0619759. The reviewers are greatly acknowledged for their constructive comments on this manuscript.WOS:0004251999000122-s2.0-85040173823PubMed: 2932895

Synchrotron-Based FTIR Micro-spectroscopy of Martian Meteorites

Martian meteorites from SNC group were studied with synchrotron-based FTIR spectroscopy with ~1 µm spatial resolution in the mid-infrared region (4000-850 cm-1). Silicate region in EET A79001, ALH 84001, and Nakhla present three prominent bands, while Chassigny has a different spectral profile. The infrared spectra reveal that some of the grains contain aliphatic type organic molecules as well as OH. According to the spatially resolved distribution maps, these molecules appear to be heterogeneously distributed in the samples. This points to complex parent body processes.SNC grubundan Mars meteoritleri ~1 ?m yüzeysel çözünürlüklü sinkrotron-tabanlı FTIR spektroskopi ile orta-kızılotesi alanda incelendi (4000-850 cm-1). EET A79001, ALH 84001, ve Nakhla meteoritlerinde silikat aralığı belirgin üç bandı ortaya koyarken, Chassigny farklı bir spektral profile sahiptir. Örneklerden bazılarının alifatik tip organik moleküller ve OH içerdiği kızılötesi spektra ile gösterilmiştir. Yüzeysel olarak çözümlenen dağılım haritalarında bu moleküllerin örnekler içinde heterojen olarak dağıldıkları görülmektedir. Bu durum ana-cisimde kompleks süreçlere işaret etmektedir.WOS:00044838360001

A study to ınvestigate the personal traits and professional competence of cooks

Doğan, Sait (Aksaray, Yazar)Bu araştırmanın amacı sıcak mutfak aşçısının sahip olması gereken kişisel özellikler ile mesleki bilgi ve becerileri tespit etmektir. Bu kapsamda aşçıda bulunması gereken kişisel özellikler ile mesleki yeterlilik ve yetkinlikler ortaya konulmaya çalışılmıştır. Bu araştırma, “mesleğe özgü” olarak bir aşçıda olması gereken kişisel özellikleri ve mesleki yeterlilik ve yetkinlikleri belirlemesi ve ayırt edebilmesi açısından önemlidir. Ankara il merkezinde yer alan 5 yıldızlı otel işletmeleri-nin orta ve alt düzey yöneticileri araştırmanın uygulama alanını oluşturmuştur. Sıcak mutfak aşçısına yönelik yapılan bu çalışmada öncelikle 2 ortak üst kriter/boyut olan, (1) Kişisel Özellikler, (2) Mesleki BilgiBeceri üst kriterlerine bağlı alt kriterler/özellikler tespit edilerek sonrasında ilgili kriterler önem derecelerine göre toplamda 100 puan üzerinden ağırlıklandırılmış ve her bir alt kriterin ağırlığı ayrı ayrı ortaya konmuştur. Araştırma sonucunda aşçılardan “Kişisel Özellikler” kapsamında öncelikli olarak: “Ahlak sahibi”, “Mesaiye Riayet eden”, “Kişisel Görünüm ve Hijye-nine önem veren”, “Değişim ve Yeniliğe Açık” ve “Esnek Çalışma Saatlerine Uygun” olan bireyler olmalarının beklendiği anlaşılmıştır. Bunun yanı sıra sıcak mutfak aşçısının mesleki yetkinlikler kapsamında: “Hijyen Bilgisi”, “Çorba Bilgi/Becerisi”, “El Becerisi”, “İkame Ürün Bilgisi” ve “Kalite ve Kontrol Bilgisi” ’ne sahip olmaları beklenmektedir.The aim of this study is to identify the personal traits and professional competence of the cooks who prepare hot dishes. In this context, it has been tried to reveal personal traits and vocational knowledge and skills which these personnel should have. This study has an importance in terms of identifying and distinguishing the personal qualities and vocational knowledge and skills a profes-sional should have as “peculiar to his/her vocation”. Low and mid-level managers at 5-star hotels in Ankara province compose range of application of the study. In this study, firstly, 2 common top criteria/dimensions, (1) personality traits and (2) vocational knowledge and skills, are defined, and thereafter subordinate criteria are defined, and their scores have weighted out of 100 in total. The significances of the subordinate criteria are respectively elicited according to the weighting. At the end of the study, it is found out that the qualifications such as “being moral”, “complying with work-ing hours”, “caring personal appearance and hygiene”, “being open to change and innovation”, and “being flexible to longing and changing working hours” were the top expected qualifications from cooks within the scope of personality traits. Besides, it is emerged that “knowledge of hygiene”, “knowledge of soup”, “hand skill”, “knowledge of substitute products”, and “knowledge of quality and control” were the top expected qualifications from cooks within the scope of vocational knowledge and skills

Garson mesleğine yönelik performans değerlendirme kriterlerinin geliştirilmesi üzerine bir araştırma: Ankara 5 yıldızlı otel işletmeleri uygulaması

Otel işletmelerinde çalışanların işini sevmesi, konuklara en iyi hizmeti sunması, onları memnun etmesi ve beklentilerini karşılaması, bunu yaparken de kendini geliştirmesi ve insan ilişkilerinde başarılı olması oldukça önemlidir. Otel işletmelerinde konukla en fazla yüz yüze gelen işgörenlerden birisi de garsonlardır. Bu kapsam da garsonun işini iyi yapması önem arz etmektedir. Bu araştırmanın amacı garson’a yönelik performans değerlendirme kriterlerini tespit etmektir. Bu araştırma, “otele özgü” tek tipte bir performans değerlendirme formu kullanımının aksine; otellerde bölüm ve iş farklılıklarını dikkate alarak “mesleğe özgü” performans değerlendirme formu geliştirmesi açısından önemlidir. Ankara il merkezinde yer alan 5 yıldızlı otel işletmelerinin orta ve alt düzey yöneticileri araştırmanının uygulama alanını oluşturmuştur. Performans değerlendirme kriterlerinin geliştirilmesi kapsamında öncelikle 4 yönetici ile randevu alınarak görüşme yapılmış, devamında 4 yönetici ile bir pilot uygulama, sonrasında da 14 yönetici ile anket uygulaması gerçekleştirilmiştir. İlgili bölümde garsonlara yönelik performans değerlendirme kriteri geliştirme sürecinde üç ortak üst kriter/boyut, (1) Kişisel Özellikler, (2) Mesleki Bilgi-Beceri ve (3) Kişisel Davranış, belirlenmiş ve bu üst kriterlere ilişkin alt kriterler ile birlikte kriterlerin önem derecelerine göre 100 puan üzerinden ağırlıkları ayrı ayrı ortaya konmuştur.Employees working in hotel businesses are expected to love the job, to offer the best service to the customers, to satisfy them and to meet expectations. It is also expected that employees will be able to improve themselves and to be successful in human relations. One of the employees who come face to face with the customer in the hotel business are the waiters. In this context, it is important for the waiter to do his job well. The aim of this study is to develop performance appraisal criteria for the waiter’s profession. This study has an importance in terms of developing performance appraisal forms “peculiar to the vocation”, which takes differences of departments and jobs into consideration, in contrast to uniform ones “peculiar to hotels”. Low and midlevel managers at 5-star hotels in Ankara province compose range of application of the study. First, 4 managers are interviewed after scheduled appointments, later on, a pilot study with 4 managers is conducted, and questionnaires are applied to 14 managers in the context of developing performance appraisal criteria. During developing performance appraisal criteria for waiter’s, three common top criteria/dimension, (1) personality traits, (2) vocational knowledge and skills, and (3) personal behaviour, are defined, and subordinate criteria and their weightings over 100 points depending on their significances are respectively elicited

Presenteizm ile Duygusal Bağlılık Arasındaki ilişki: Seyahat Acentaları Üzerine Bir Uygulama

Bu çalışmanın amacı presenteizm ile duygusal bağlılık arasındaki ilişkiyi incelemektedir. Veri toplama tekniği olarak anket yöntemi kullanılmıştır. Çalışmanın evrenini Ankara' da bulunan seyahat acentası çalışanları oluşturmaktadır. Anket, yüz yüze görüşülerek 179 seyahat acentası çalışanına uygulanmıştır. Presenteizm ile duygusal bağlılık arasında pozitif yönlü, zayıf ilişki olduğuna rastlanmıştır

The Influence of CSR Practices on Lebanese Banking Performance: The Mediating Effects of Customers’ Expectations

Corporate social responsibility (CSR) issues in developing markets have acquired a lot of attention. Organisations around the globe apply a diversified set of technologies to approaching customer expectations through banking performance. This study examines the impact of CSR on Lebanese banking performance. Primary data from questionnaires were used. A total of 1000 observations were collected using a 5-point Likert scale method adopted to formulate the items. The questionnaire was tested to assess its trustworthiness regarding data collection. Partial least square structural equation modelling (PLS-SEM) was used to test the hypothesis. The overall results demonstrated the significance of CSR in terms of meeting customers’ expectations and maintaining banking performance. All CSR dimensions demonstrated a positive impact on customer expectations and Lebanese banking performance. Moreover, customer expectations proved to be a mediator between CSR and banking performance, although there was partial mediation between CSR and banking performance