121 research outputs found

    UAV Based Agricultural Planning and Landslide Monitoring

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    Unmanned Aerial Vehicle (UAV) is finding a wide application field in areas such as map production, land survey, landslide, erosion, agricultural activities, and forest fires monitoring. In this study, an UAV equipped with SONY 6000 camera was used. The flight plan was prepared from 100 m height, and having 80% overlap and 60% sidelap rates. GNSS geodetic receivers and Ground Control Points (GCPs) were observed. GNSS signals were processed with LGO V.8.4 software to receive precise location information. 291 photographs for 50 hectares of landslide area were taken by UAV. All photos were processed by PIX4D software. In the field of the landslide area, 8 GCPs were included in the evaluation. 3D model were produced with pixel matching algorithms. Six period flights in different months were made for the landslide area and ground movements between the periods were observed. During this time interval , the volume of moving soil was determined. At the end of the study, RMSE for soil movement was obtained ±1.79 cm for landslide area. This study demonstrates that UAV-based high resolution orthophoto, 3D terrain model and point cloud data sets can be used to monitor the landslide, especially in micro small areas. It also was revealed that this method has some advantages over other traditional geomatics methods

    Oscillation criteria for a certain even order neutral difference equation with an oscillating coefficient

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    AbstractIn this paper we are concerned with the oscillation of solutions of a certain higher order linear neutral type difference equation with an oscillating coefficient. We obtain some sufficient criteria for oscillatory behaviour. In particular, the results are new even when n=2 and there are few results in the case of p is an oscillatory function

    Correction to: Two years later: Is the SARS-CoV-2 pandemic still having an impact on emergency surgery? An international cross-sectional survey among WSES members

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    Background: The SARS-CoV-2 pandemic is still ongoing and a major challenge for health care services worldwide. In the first WSES COVID-19 emergency surgery survey, a strong negative impact on emergency surgery (ES) had been described already early in the pandemic situation. However, the knowledge is limited about current effects of the pandemic on patient flow through emergency rooms, daily routine and decision making in ES as well as their changes over time during the last two pandemic years. This second WSES COVID-19 emergency surgery survey investigates the impact of the SARS-CoV-2 pandemic on ES during the course of the pandemic. Methods: A web survey had been distributed to medical specialists in ES during a four-week period from January 2022, investigating the impact of the pandemic on patients and septic diseases both requiring ES, structural problems due to the pandemic and time-to-intervention in ES routine. Results: 367 collaborators from 59 countries responded to the survey. The majority indicated that the pandemic still significantly impacts on treatment and outcome of surgical emergency patients (83.1% and 78.5%, respectively). As reasons, the collaborators reported decreased case load in ES (44.7%), but patients presenting with more prolonged and severe diseases, especially concerning perforated appendicitis (62.1%) and diverticulitis (57.5%). Otherwise, approximately 50% of the participants still observe a delay in time-to-intervention in ES compared with the situation before the pandemic. Relevant causes leading to enlarged time-to-intervention in ES during the pandemic are persistent problems with in-hospital logistics, lacks in medical staff as well as operating room and intensive care capacities during the pandemic. This leads not only to the need for triage or transferring of ES patients to other hospitals, reported by 64.0% and 48.8% of the collaborators, respectively, but also to paradigm shifts in treatment modalities to non-operative approaches reported by 67.3% of the participants, especially in uncomplicated appendicitis, cholecystitis and multiple-recurrent diverticulitis. Conclusions: The SARS-CoV-2 pandemic still significantly impacts on care and outcome of patients in ES. Well-known problems with in-hospital logistics are not sufficiently resolved by now; however, medical staff shortages and reduced capacities have been dramatically aggravated over last two pandemic years

    Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

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    Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

    Developing and evaluating the middle school students' coping with emergency situations scale

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    Acil durum ve afet olayları öğrencilerin yaşam kalitesini düşürerek stres artışına, yaralanmalara, sakat kalmalarına, hastalanmalarına, depresyona girmelerine, öğrencilerde tükenmişliğe ve psikolojik bozukluklara neden olur. Acil durum ve afet eğitimi öğrencilerin sosyal ve zihinsel gelişimlerinin desteklenmesinin yanı sıra afet ortamının tehlikelerinden korumasını sağlar, afetin psiko-sosyal etkilerini hafifletir. Bu çalışmanın amacı ortaokul öğrencilerinin ADBÇÖ'ni geliştirmek ve geliştirilen ADBÇÖ'ni kullanarak ortaokul öğrencilerin acil durumlarla başa çıkma becerisinin eğitim etkinliğini değerlendirmektir. Çalışma Mart-2020 Temmuz 2021 tarihleri arasında Muş Milli Eğitim Müdürlüğüne bağlı ortaokul öğrencilerinden 479 öğrenciye ölçek geliştirmek amacıyla metodolojik çalışma olarak yürütüldü. Ölçek toplam 30 madde 3 alt boyuttan oluştu. Ortaokul Öğrencilerinin Acil Durumlarla Başa Çıkma Ölçeğini geliştirmek için araştırmaya katılan 479 öğrencinin ölçek toplamından aldığı en düşük puan 34 en yüksek puan 113, puan ortalaması ise 67.17 ± 15.13, "Temel İlkyardım" alt boyutundan aldığı en düşük puan 15 en yüksek puan 58, puan ortalaması ise 31.66 ± 8.58, "Doğal Afetler" alt boyutundan aldığı en düşük puan 10 en yüksek puan 40, puan ortalaması ise 22,19 ± 5.26 ve "Yardım İsteme" alt boyutundan aldığı en düşük puan 5 en yüksek puan 20, puan ortalaması ise 13.32 ± 3.26 olarak hesaplandı. ADBÇÖ'ne ait Cronbach ? güvenilirlik katsayısı ise 0,910 olarak hesaplandı "Ortaokul Öğrencilerinin Acil Durumlarla Başa Çıkma Ölçeğinin'' ortaokul öğrencilerinde geçerli ve güvenilir bir araç olduğu tespit edildi. Geçerlilik ve güvenirlikten yapıldıktan sonra yarı deneysel tasarım olarak 38 kişi eğitim grubu, 36 kişide kontrol grubu olarak belirlendi. Çalışmada soru formu sosyo-demografik bilgi ve acil durumlar bilgisi sorularından oluşturuldu. Acil durumlarla başa çıkma becerisini ölçmek için ADBÇÖ kullanıldı. Eğitim grubuna dört hafta haftada iki kez acil ve afet eğitimi verilerek eğitimden sonra sonuçlar tekrar değerlendirildi. Eğitim grubunda ADBÇÖ ve ölçeğin tüm alt boyutlarında puan ortalaması kontrol grubuna göre yüksek bulundu (p<0.05). Ortaokul öğrencilerine acil ve afet eğitimi verilmesi ortaokul öğrencilerinin acil durumlarla başa çıkma becerini arttırdığı görüldü. Anahtar Kelimeler: Ortaokul Öğrencileri, Acil Durumlar ve Afet, Acil Durumlarla Başa Çıkma Becerisi, Geçerlilik, GüvenirlilikEmergency and disaster events reduce the quality of life of students and cause stress, injuries, disability, illness, depression, burnout and psychological disorders in students. Emergency and disaster education not only supports the social and mental development of students, but also protects them from the dangers of the disaster environment and alleviates the psycho-social effects of the disaster. The aim of this study is to improve secondary school students' CWESS and to evaluate the educational effectiveness of secondary school students' ability to cope with emergencies by using the developed CWESS. The study was carried out as a methodological study in order to develop a scale for 479 secondary school students affiliated to the Muş National Education Directorate between March 2020 and July 2021. The scale consisted of a total of 30 items and 3 sub-dimensions. In order to develop the Middle School Students' Coping with Emergencies Scale, 479 students who participated in the research got the lowest score from the total scale 34, the highest score was 113, the average score was 67.17 ± 15.13, the lowest score they got from the "Basic First Aid" sub-dimension was 15, the highest score was 58, and the average score was 58. The lowest score obtained from the "Natural Disasters" sub-dimension is 31.66 ± 8.58, the lowest score is 10, the highest score is 40, the average score is 22.19 ± 5.26, the lowest score from the "Requesting Help" sub-dimension is 5, the highest score is 20, and the average score is 13.32. It was calculated as ± 3.26.The Cronbach ? reliability coefficient of the CWESS was calculated as 0.910. After validity and reliability, 38 students were determined as the training group and 36 people as the control group as a quasi-experimental design. In the study, the questionnaire was composed of socio-demographic information and emergency information questions. CWESS was used to measure the ability to cope with emergencies. The training group was given emergency and disaster training twice a week for four weeks, and the results were re-evaluated after the training. In the training group, the average score in the CWESS and all sub-dimensions of the scale was higher than the control group (p<0.05). It was seen that providing emergency and disaster education to secondary school students increased the ability of secondary school students to cope with emergencies. Keywords: Secondary School Students, Emergencies and Disaster, Ability to Cope with Emergency Situations, Validity, Reliability

    Die qualifizierte Freigabe der Planungsleistungen unter besonderer Beachtung der beauftragten Projektsteuerung

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    Die qualifizierte Freigabe der Planungsleistungen unter besonderer Beachtung der beauftragten Projektsteuerun

    Regularized estimation of Euler pole parameters

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    THE INFLUENCE OF EMPLO-YEES’ WORK MOTİVATİON OVER ORGANİZATİONAL COMMİTMENT: A STUDY ON FİVE STAR HOTELS LOCATED İN ANKARA

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    Bu çalışma, Ankara'daki beş yıldızlı otel işletmelerinde çalışan işgörenlerin dışsal ve içsel iş motivasyon düzeyleriyle, örgütsel bağlılık düzeyleri arasındaki ilişkiyi belirlemeyi ve iş motivasyonu alt boyutlarının örgütsel bağlılık alt boyutlarını yordayıp yordamadı-ğını ortaya koymayı amaçlamıştır. Bu kapsamda Ankara il merkezinde faaliyet gösteren 5 yıldızlı otel işletmelerinde çalışan 462 işgörene anket uygulanmıştır. İş motivasyonu ve örgütsel bağlılığa yönelik olarak toplanan veriler, betimsel istatistikler (aritmetik ortala-ma, standart sapma, korelasyon analizi) ve ölçekteki ifadelerin güvenirliğine ilişkin Cronbach's Alpha (?), ölçekteki ifadelere verilen cevapların normal dağılıma uygunluğuna yönelik de Kolmogorov-Smirnov (K-S) testi uygulanarak analiz edilmiştir. Ayrıca dış ve iç motivasyon faktörlerinin örgütsel bağlılığın alt boyutlarını yordayıp yordamadığına belirlemek ve araştırma hipotezlerini test etmek için "Çoklu Doğrusal Regresyon" analizi yapılmıştır. Sonuç olarak içsel motivasyon faktörlerinin duygusal, devamlılık ve normatif bağlılığın anlamlı bir yordayıcısı olduğu bulgulanmıştır. Dışsal motivasyon faktörleri ise bu çalışmada sadece duygusal bağlılığın anlamlı bir yordayıcısı olmuştur. Bu sonuçlar-dan hareketle otel yöneticilerine birtakım öneriler sunulmuşturThis study attempts to describe the relationship between external and internal motiva-tions level of employees working in five-star hotels in Ankara and their organizational commitments level. Besides, it searches for the extent to which sub-dimensions of work motivation can predict sub-dimensions of organizational commitment. Within this con-text, a survey study was conducted over 462 employees working in five-star hotels in Ankara. Data for collected for employee motivation and organizational commitment was analyzed by using descriptive analysis (arithmetic mean, standard deviation, correlation analysis), Cronbach’s Alpha (?) for the reliability of the expressions in the scale, and Kolmogorov-Smirnov (K-S) test for normal distribution of the answers given to the ex-pressions in the scale. Moreover, multi-linear regression analysis was conducted to find the extent to which external and internal motivation factors explain sub-dimensions of organizational commitment and to test the hypotheses of the research. Consequently, the study found that internal motivation factors are significant predictor of emotional, con-tinuity and normative commitments. On the other hand, external motivation factors could only meaningfully explain the emotional commitment in this study. Based on these findings, the study concludes with suggestions to the hotel manager

    TREATMENT APPROACHES FOR TRAUMATIZED ANTERIOR TEETH WITH EXCESSIVE TISSUE LOSS: THREE CASE REPORTS

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    Use of direct composite and indirect laminate veneers has been an alternative to metal- and all-ceramic crowns for anterior teeth restorations. Dental traumas are the most common reasons for excessive tissue loss. Treatment options depend on the amount of remaining tissue, the extent of the damage to dental pulp and periapical tissues and the time elapsed before dental treatment. The aim of this case report was to evaluate the direct and indirect techniques used in the treatments of traumatically fractured anterior teeth. In Case 1, a 29-year-old male patient attended to the clinics of the Department of Restorative Dentistry, Faculty of Dentistry, Istanbul University for the replacement of old composite restorations. According to anamnesis, the anterior teeth had fractured because of falling from bicycle. Dentinal pins used to retain the composite restorations were screwed out and indirect composite laminate veneers were placed. In Case 2, a 27-year-old male patient attended to our clinic for the treatment of his anterior teeth which were fractured due to a fall. A different type of technique, a silicon guide, was used to mimic the natural teeth surfaces precisely. In Case 3, a 16-year-old female patient attended to our clinic for the treatment of her anterior teeth which were fractured in a car accident. On clinical evaluation, related teeth were found to be non-vital and application of fiber posts was considered suitable before direct composite restorations. In conclusion, all of these techniques may be used for traumatized anterior teeth. Esthetical necessities and functional forces should be taken into consideration in material choice
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