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Risk factors affecting blockchain-based smart contract use in architecture, engineering, and construction industry
No full textManagement of traditional construction contracts that is frequently preferred in the architecture, engineering, and construction (AEC) industries are affected by many factors due to the complexity and large number of contract documents. With the introduction of Web 3.0 technology, blockchain is considered as a suitable solution for solving many problems arising from traditional contracts and can be considered as an alternative method to traditional contracts in the AEC industry. Using cryptocurrencies, switching to blockchain-based contracts, and using smart contracts will be advantageous for AEC industry in many ways. However, in addition to these advantages, the existence of risk factors cannot be denied. With this background, this study aims to identify risk factors affecting blockchain-based smart contract use in AEC industry through a comprehensive literature review and to prioritize the identified risk factors using Analytic Hierarchy Process, respectively. The prominent risks were found to include implementation risks, followed by legal risks and contractual risks. The contributions of the study to the academic literature are the identification of the risks that may occur during the integration of blockchain-based contracts into the AEC industry and the diagnosis of any problems that may occur during the integration process. Professionals in the field of construction management can also benefit greatly from the findings of this study by analyzing those risks throughout their projects
The effect of different pre-harvest applications and modified atmosphere packaging on fruit quality and biochemical properties of hacihaliloğlu apricot varieties
No full textLisansüstü Eğitim Enstitüsü, Bahçe Bitkileri Ana Bilim Dalı, Bahçe Bitkileri Bilim DalıBu çalışma, ülkemizin en önemli kurutmalık kayısı çeşidi Hacıhaliloğlu'nda hasat öncesi ve sonrası bazı uygulamaların meyve kalitesi ve biyokimyasal özelliklere etkisini belirlemek amacıyla 2021-2022 yıllarında yürütülmüştür. Hasat öncesi dönemde farklı dozlarda kalsiyum klorür (CaCl2) (tam çiçeklenmeden 30, 60 ve 90 gün sonra) üç defa giberellik asit (GA3) uygulaması (tam çiçeklenmeden 90 gün sonra) bir defa uygulanmıştır. Erken olum safhada hasat edilen meyvelere 24 saat süreyle 625 ppb dozda etilen engelleyicisi hormon olarak bilinen1-metilsiklopropen(1-MCP) uygulanmıştır.1-MCP uygulaması yapılan ve yapılmayan meyveler modifiye atmosfer paketlerde (MAP) +4 ºC sıcaklık ve %90-95 oransal nem koşullarındaki soğuk hava deposunda 4 hafta süreyle muhafaza edilmiştir. 2021 yılında depolama öncesi ve 30 günlük depolama sonrası 1-MCP uygulaması yapılan ve 1-MCP uygulanmayan meyvelerde sırasıyla en yüksek suda çözünür kuru madde miktarı %25,50 – 25,10 – 26,17, meyve et sertliği 5,0 – 4,41 – 3,95kg/cm2, toplam fenolik madde miktarı 2103,49 – 2566,99 – 2157,42 99 mg GAE/kg kuru ağırlık, toplam flavonoid içeriği 340,39 – 486,13 – 459,11 mg/kateşin kg olarak belirlenmiştir. 2022 yılında ise en yüksek suda çözünür kuru madde miktarı sırasıyla %22,60 – 24,10 – 23,97, meyve et sertliği 3,61 – 2,92 –2,65 kg/cm2, toplam fenolik madde miktarı 1931,3 – 2358,50 – 2268,45 mg GAE/kg kuru ağırlık, toplam flavonoid içeriği 407,3 –546,89 – 461,30 mg/ kateşin kg kuru ağırlık arasında değişim göstermiştir. Hacıhaliloğlu kayısı çeşidine ait meyvelerdehasat öncesi GA3 ve CaCl2 ile hasat sonrası 1-MCP uygulamalarının meyve kalitesini artırdığı ve raf ömrünün uzatı lmasına katkı sağladığı tespit edilmiştir. Araştırma sonucunda, kurutmalık Hacıhaliloğlu çeşidinin MA koşullarda depolanması, depolama sırasında meyve kalitesinde meydana gelen değişimlerin analiz edilmesinin ülkemiz yaş kayısı tüketimi ve ihracatını olumlu yönde etkileyeceği öngörülmektedir. ANAHTAR KELİMELER: Hacıhaliloğlu, MAP, 1-MCP, GA3, CaCl2, Meyve kalitesiThis study was carried out in order to determine the effects of some pre-harvest and post-harvest applications on fruit quality and biochemical properties of Hacihaliloglu, themostimportant dried apricot cultivar of our country, in 2021-2022. In the pre-harvest period, different doses of calcium chloride (CaCl2) (30, 60 and 90 days after full flowering) were applied three times (90 days after full flowering), and gibberellic acid (GA3) (90 days after full flowering) once.1-Methylcyclopropene (1-MCP), known as an ethylene inhibitor, was applied to fruits harvested in the early ripening period at a dose of 625 ppb for 24 hours. 1-MCP-treated fruits, together with 1-MCP-untreated fruits were stored in modified atmosphere packaging (MAP) for 4 weeks in a cold storage at +4 ºC temperature and 90-95% relative humidity conditions. As results in 2021, before storage and after 30 days of storage, 1-MCP application and control group, the highest amount of water-soluble dry matter in fruits is 25.50 –25.10 – 26.17, fruit firmness is 5.0 – 4.41 – 3.95 kg/cm2, total phenolic content 2103.49 – 2566.99 – 2157.42 99 mg GAE/kg dry weight, total flavonoid content 340.39 – 486.13 – 459.11 mg/catechin kg has been determined, respectively. In 2022, the highest amount of water-soluble dry matter is 22.60 –24.10 – 23.97%, fruit firmness is 3.61 – 2.92 – 2.65 kg/cm2, total phenolic substance amount is 1931.32 – 2358.50 – 2268.45 mg GAE/kg dry weight, total flavonoid content ranged from 407.37 – 546.89 – 461.30 mg/catechin kg dry weight. It was determined that pre-harvest GA3 and CaCl2 and post-harvest 1-MCP applications in fruits of Hacihaliloglu apricot cultivar increased fruit quality and extending shelf life. As a result of there search, it is predicted that the storage of the dried Hacihaliloglu cultivar under MA conditions and the analysis of the changes in fruit quality during storage will positively affect the consumption and export of fresh apricots in our country. KEYWORDS: Hacihaliloglu, MAP, 1-MCP, GA3, CaCl2, Fruit qualit
Successful ERCP application in pregnant women with cholestasis
No full textWe aimed to present successful endoscopic retrograde cholangiopancreatography (ERCP) applications and results in our pregnant cases. A retrospective analysis was performed on the data of 14 successful ERCP procedures performed on our pregnant patients between 2016 and 2022. The ERCP operation was carried out on the patients while they were in the left decubitus position by endoscopists skilled in biliary endoscopy. Methods to lessen prenatal radiation exposure were used during the fluoroscopy procedure. Throughout the process, short-term fluoroscopies were employed. The duration of each fluoroscopy on the patient was noted. 14 pregnant women who presented with cholestasis results had ERCP and sphincterotomy. Two of the procedures were completed on full patients during the appropriate trimesters. Our pregnant women had a mean gestational age of 17.8 weeks and a mean mother age of 24.85.6 (19-38). The fluoroscopy took 0.16 minutes (0-35sec). Ten pregnant women (10 sec) had very little fetal radiation exposure, while four other pregnant women (4 sec to 14 sec) had some. The two women's combined prenatal radiation exposure was reportedly between 30 and 35 seconds. One mild bleeding after sphincterotomy, two hyperamylasemia following ERCP, and one case of acute respiratory distress syndrome were procedure-related complications. Two days after an ERCP, cholecystitis manifested in one pregnant woman. When measures are taken as directed by a multidisciplinary team, ERCP can be used during pregnancy without risk and produce positive outcomes
Practicum Students’ Views on Distance Learning via TV Broadcast for Secondary Schools
No full textDue to the outbreak of COVID-19 in late 2019 and early 2020 across the world, many countries turned to distance education platforms. By the beginning of March, 2020 Turkey also started TV classes for almost 18 million students of primary and secondary schools. This study aims to explore the extent to which pre-service English teachers auditing a distance English language course for secondary school students considered that the distance courses had achieved the course objectives, and perceived advantages and disadvantages in distance courses. The participants in the study were 60 pre-service teachers who attended a practicum study for the first five weeks of the 2019-2020 academic year spring semester. Since the classes in primary, secondary, and tertiary education were taught online for the rest of the spring semester, the practicum students were assigned to watch English classes taught on free TV channels which were also broadcast on the internet to let the students watch again at their own pace. The data were collected through three open-ended interview questions. Thematic analysis was used to analyze the transcribed data. The results indicate that, although teachers on the course agreed that TV courses were not able to achieve the course objectives, they mentioned advantageous and disadvantageous aspects of distance learning via TV broadcast and offered ways to improve it. © 2025 Elsevier B.V., All rights reserved
The effect of the pandemic on the professional values of nurses in Türkiye: a phenomenological approach
No full textObjectives: The COVID-19 pandemic affected healthcare professionals as well as all sectors of society. Nurses working in close contact with patients were particularly affected during this process, and it is important to reveal its effects on the professional values of nurses. This study aims to explore the effect of the pandemic on the professional values of nurses caring for patients with COVID-19. Methods: A descriptive phenomenological research method was used in the study. The research was conducted with 20 nurses who care for patients with COVID-19 in the intensive care units of different provinces of Türkiye. A semi- structured interview form prepared based on the literature was used to collect the data, which were obtained by the researchers through face-to-face interviews. Results: In this study, five categories with themes and subthemes emerged: (1) the professional values of nurses during the pandemic; (2) the impact of the pandemic on professional values; (3) the emotional state of nurses regarding the pandemic process; (4) the support factors of nurses in the pandemic process; and (5) the expectations of nurses. It was revealed that the professional values of nurses were affected during the pandemic process. The situations that made nurses feel bad, weak, good, and strong during the pandemic process and what their expectations were determined. Conclusion: In our study, we found that nurses managed to preserve their professional values even when they worked under difficult conditions during the pandemic. They have shown that they have an important role in the health army during the pandemic process with the values they maintain by strengthening the opposite without losing. It is impor- tant to transfer the experiences of nurses during the pandemic to the new generation of nurses and conduct training to maintain professional values
Microendoscopic Discectomy for Lumbar Disc Herniations: A Series of 389 Cases
No full textObjective: Lumbar disc herniation is one of the discogenic causes of lower back pain. Patients with severe nerve root compression or progressive neurologic deficit who do not respond to conventional treatments require surgical intervention. These surgical treatments include minimally invasive and traditional methods. In this study, we have presented the clinical data of patients who underwent microendoscopic discectomy (MED)-a minimally invasive method.Methods: The surgical and clinical data of 389 adult patients who were operated through MED by a single surgeon between 2017 and 2022 were retrospectively evaluated. Parameters such as per-oppostop visual analog scale (VAS), follow-up time, duration of hospitalization, and amount of intraoperative blood loss were examined.Results: Of the 389 patients included in our study, 169 were female and 220 were male, and their mean age was 42.78 years. L4-L5 (n=205, 51.6%), L5-S1 (n=185, 46.8%), L3-L4 (n=4, 1%), and L2-L3 (n=2, 0%) were the most frequently operated levels, showing a sequentially decreasing frequency. Bilateral surgery was performed in two patients. Recurrence was observed in 11 patients (2.8%). Cerebrospinal fluid was detected in 2 (0.5%) patients. The mean pre-and post-op VAS scores were calculated as 7.45 and 1.14, with a significant difference of p<0.001. The mean blood loss during surgery was calculated as 9.6 +/- 5.8 mL, and the postoperative hospital stay was 17.2 +/- 8.5 hours.Conclusion: MED was comparable to conventional methods in terms of symptom relief, recurrence rate, recovery time after surgery, and intraoperative blood loss
STORYTELLING IN DESTINATIONS’ PROMOTIONAL VIDEOS: CASE OF GO TÜRKIYE OFFICIAL YOUTUBE PAGE
No full textOne of the important needs that humanity has sought to meet throughout history has been to tell others regarding things, real or imagined. It is seen that stories are carriers of cultural values as they are told from generation to generation and become a tool. Especially today, stories are an important power of the tourism industry in terms of sustaining cultural heritage tourism. Storytelling is one of the prominent strategies in destination marketing. Storytelling, which allows forming emotional bonds between tourists and destinations, providing unforgettable experiences and strengthening the destination image, is used in different communication tools through media technologies. Positioning destinations in the minds of potential tourists through stories allows tourists to want to go to the place described in the story and to influence their travel decisions. This study aims to examine how storytelling is used in promotional videos of prominent destinations in Türkiye. In this regard, the promotional videos of the ten different destinations on Go Türkiye’s YouTube channel within the context of storytelling elements were analysed. In the study, promotional videos were discussed in terms of the structural factors of the story (Fog et al. 2001), brand archetypes used in the story (Mark and Pearson, 2001) and digital story elements (Robin, 2006; Harris and Rea, 2019). There were message and character elements in all the videos, no conflict is used in any of the videos, and the plot takes place in a fiction that may be weak in all the videos, according to the findings. The dramatic question, emotional content, music, and pacing were all found in all videos that were evaluated in terms of elements. All promotional videos featured points of view that emphasized the uniqueness of destinations. The findings of the study have potential brand strategy implications for tourism destination managers and implications for producing destination promotional videos. Although some Destination Management Organizations (DMOs) have their own social media websites, monitoring stories that appear on their official social media (e.g. YouTube) can be a primary step when strategically managing marketing efforts. The results of the current paper can be an opportunity for managers of DMOs to perfect their marketing strategies depending on the storytelling elements. Based on the findings, it can be advised that DMOs and tourism companies should focus on providing a good story for target groups to lead their re/visiting to the destination
Can myocardial dysfunction be detected in patients with rheumatoid arthritis with no cardiac symptoms?
No full textOBJECTIVE: The aim of our study was to investigate the role of tissue Dop-pler and Myocardial Performance Index (MPI) in evaluating cardiac involvement in patients with rheumatoid arthritis (RA) with no cardi-ac symptoms, to determine whether these mea-surements differ between healthy controls and RA patients, and whether they can be used to determine the risk of cardiovascular disease and predict prognosis.PATIENTS AND METHODS: 50 RA patients fulfilling the 2010 American College of Rheuma-tology/European League Against Rheumatism (ACR/EULAR) RA criteria and 50 healthy volun-teering controls were included in the study. All patients and controls were assessed using elec-trocardiography (ECG), echocardiography, con-ventional Doppler echocardiography and tissue Doppler echocardiography. MPI values were cal-culated. In addition, RA patients were compared after being divided into two subgroups: sero-positive and seronegative RA. Disease activi-ty levels of the patients were determined based on Disease Activity Score in 28 Joints (DAS28).RESULTS: The control group and RA group were compared in terms of PR interval, left atrial diameter, E/A, E/e', and MPI values. Comparisons between the groups yielded statistically signifi-cant differences in left atrial diameter, E/A, E/e', and MPI values and no significant difference in PR intervals. These parameters were also com-pared between seropositive and seronegative pa-tients. Left atrial diameter was significantly high-er in seronegative patients than in seropositive patients. There was no significant difference in the other values. DAS28 scores had no correla-tion with cardiac parameters.CONCLUSIONS: Early detection of ventricu-lar dysfunction in RA may be useful in clinical practice when predicting prognosis and optimiz-ing treatment. The present study found that RA patients had impaired tissue Doppler measure-ments and MPI results compared to controls. MPI and tissue Doppler may be useful in early detection of ventricular dysfunction
‘Çevrim içi Dindarlık: M Neslinin İnanç Pratikleri’ Kitabının Değerlendirilmesi
No full textBu çalışma, bir kitap değerlendirme makalesidir. Günümüzde, insan hayatıyla adeta iç içe geçmiş olan medya ve teknolojinin, Müslümanlar için işlevi ve önemi oldukça büyüktür. Bu nedenle değerlendirilen kitap, Doç. Dr. Metin Eken’in Müslümanların hayatında medyanın yerini anlamak için yazdığı ‘Çevrim içi Dindarlık’ isimli eserdir. Bu nedenle bu çalışmada diğer kitap değerlendirme makalelerinde de olduğu gibi öncelikle kitabın genel içerikleri ve başlıkları aktarılmış ve sonrasında bu bölümler hakkında kısa bilgiler verilerek çalışmanın yöntemi ile bulguları kısaca aktarılarak yazarın önerileri açıklanmıştır. Sonuç olarak kitabın genel değerlendirilmesi makale yazarı tarafından yapılmış ve öneriler hakkında bazı noktalarda duyulan endişeler bu çalışmanın araştırmacısı tarafından belirtilmiştir
Geriatrik hastalarda görülen cervical vertebralara ait osteofitlerin yapı ve yerleşimlerini bilgisayarlı tomografi yöntemi kullanılarak anatomik ve epidemiyolojik olarak incelenmesi
No full textBackground: To evaluate the osteophytes seen in the cervical vertebrae of geriatric individuals in various parameters. Materials and Methods: 764 (M: 413, F: 351) individuals who were admitted to the State Hospital Radiology Outpatient Clinic with various complaints between the years 2018 and 2023 and who met the criteria were examined in our study. A total of 1209 osteophytes were found in the individuals. The osteophytes were evaluated in terms of gender, age, grade, vertebral level, vertebral spacing, anatomical aspect, anatomical surface and length parameters. Results: Osteophyte formation increased with age in individuals (p<0.05). Osteophyte formation was observed more frequently in men when compared to women (p>0.05). Claw type osteophytes were observed commonly in all individuals (p<0.05). While fused type osteophytes were observed commonly in men, traction-type osteophytes were observed more frequently in women (p<0.05). Osteophyte formation of grade 2 severity was observed in all individuals (p>0.05). While fused osteophytes were commonly observed at grade 4 severity, claw and traction type osteophytes were observed at grade 2 severity (p<0.05). Osteophytes were commonly observed at the C5 vertebra level in all individuals (p>0.05). Fused and traction type osteophytes were commonly seen at the C6 level, while claw type osteophytes are commonly seen at the C5 level (p<0.05). In all individuals, osteophytes were most common in the C5-6 space, followed by the C4-5, C6-7 (p>0.05). Osteophytes were commonly seen anteriorly in both sexes and all osteophyte types (p<0.05). All osteophyte types were commonly observed in the inferior surface of the vertebra (p<0.05). Males had relatively longer osteophytes (mm) than females (p<0.05). Claw type osteophyte was observed in longer dimensions than traction type osteophyte (p<0.05) Conclusions: Osteophyte type and grade severity were found to vary between individuals. In the examinations, varying features were observed in the vertebral level, anatomical aspect, surface and length parameters of the osteophytes.Amaç: Geriatrik bireylerin cervical vertebralarında görülen osteofitleri çeşitli parametrelerde değerlendirmektir. Materyal ve Metot: Çalışmamızda 2018-2023 yılları arasında devlet hastanesi radyoloji polikliniğine çeşitli sebeplerle gelen 764 (e:413, k:351) birey incelenmiştir. Bireylerde toplamda 1209 adet osteofit tespit edilmiştir. Osteofitler yaş, cinsiyet, derecelendirme, vertebra seviyesi, vertebral aralık, anatomik yön, anatomik yüzey ve uzunluk olarak değerlendirildi. Bulgular: Osteofit oluşumu bireylerde yaşa bağlı olarak artmaktadır (p<0,05). Erkeklerde kadınlara göre daha fazla sıklıkla osteofit oluşumu gözlenmiştir (p>0,05). Tüm bireylerde pençe tip osteofit sıklıkla görülmüştür (p<0,05). Erkeklerde sıklıkla kaynaşmış tip osteofit görülürken kadınlarda traksiyon tip osteofit daha fazla gözlenmiştir (p<0,05). Kaynaşmış osteofitler sıklıkla grade 4 şiddetinde görülürken pençe ve traksiyon tip osteofitler grade 2 şiddetinde görülmüştür (p<0,05). Tüm bireylerde osteofitler C5 vertebra seviyesinde sıklıkla gözlenmektedir (p>0,05). Kaynaşmış ve traksiyon tip osteofitler C6, pençe tip osteofitler ise C5 seviyesinde sıklıkla görülmektedir (p<0,05). Tüm bireylerde en fazla C5-6 aralığında osteofit görülmüştür (p>0,05). Her iki cinsiyet ve tüm osteofit tiplerinde osteofitler sıklıkla anteriorda görülmektedir (p<0,05). Tüm osteofit tipleri sıklıkla vertebranın facies inferiorunda gözlenmiştir (p<0,05). Erkeklerde kadınlara nispeten daha uzun ölçülerde (mm) osteofit görülmüştür (p<0,05). Pençe tip osteofit, traksiyon tip osteofite göre daha uzun ölçülerde tespit edilmiştir (p<0,05). Sonuç: Osteofit tipi ve grade şiddetinde bireyler arası değişkenlik göstermiştir. Osteofitlerde vertebra seviyesi, anatomik yön, yüzey, uzunluk parametrelerinde değişen özellikler gözlenmiştir