bluuebunny/crossref_metadata_2025 huggingface dataset:
Predictor scale of delayed cerebral ischemic in aneurysmal subarachnoid hemorrhage case series: what a radiologist should know
Authors: Asih Made Widhi , Puspita Ni Putu Popy Theresia
Published: June 2021

Introduction: Delayed cerebral ischemic (DCI) was one of the most difficult and occurs in about 30% of patients with aneurysmal subarachnoid hemorrhage (aSAH) that could be predicted from computed tomography (CT) scans findings with the Fisher scale, modified Fisher scale, Claassen scale, and scale Hijdra score.Case description: We reported 5 cases of aSAH at different locations with different DCI prediction scales. 4 of our 5 cases were treated for clipping aneurysm, but in the end, all of our cases developed DCI in the period of 10 to 14 days after aSAH from the mild form of hemiparesis to death.Discussion: CT scan could predict DCI by some predictor scale. The first predictor scale was the Fisher scale, divided into four classes by assessing the amount of blood. Besides, the modified Fisher scale separated classes for patients with thick blood in the cisterna and IVH. The other scale was the Claassen Scale, which detailed the site of intraventricular blood-filled. Hijdra score is a broader alternative scale but requires more time, which assessed each cisterna amount of blood separately. The outcome was clinical DCI, defined by at least the occurrence of new focal neurological signs or a decrease in consciousness, with or without angiographic vasospasm or new infarct.Conclusion: The high incidence of DCI leading to death in aSAH indicates the importance of accurate early diagnosis. Therefore, it is necessary to have an in-depth understanding of the essential imaging findings that include the Fisher scale, modified Fisher scale, Claassen scale, and Hijdra score to quickly and accurately guide patient management.
The relationship between nutritional status with length of stay in 1-5 years old children with diarrhea at Wangaya General Hospital Denpasar
Authors: Budihardjo Susan Natalia , Suryawan I Wayan Bikin , Sucipta Anak Agung Made
Published: June 2021

Background: Diarrhea is still the second-largest cause of children under-five's mortality worldwide. Six million children die every year due to diarrhea and it mostly occurs in developing countries. The main cause of diarrhea deaths is due to malnutrition. In malnutrition there is an increase in the severity of diarrheal diseases, this makes malnutrition and diarrhea a vicious circle.Objective: To investigate the relation between nutritional status and length of stay under-five children with diarrheaMethod: A cross-sectional study was conducted from August 2018 to January 2019 using the consecutive sampling methods. The subjects were children aged 1-5 years old hospitalized for diarrhea at Wangaya Hospital Denpasar that fulfills the inclusion and exclusion criteria. The characteristics of the subject such as gender, children's age, birth weight, exclusive breastfeeding status, immunization status, degree of dehydration, motherâ€™s employment, and economic factor.Result: A total of 42 patients were the subjects of the study. Of 10 subjects with wasted nutritional status, 7 (70%) subjects had long stays (> 4 days), and 3 (30%) others with a short length of stay (â‰¤4 days). Most subjects aged 12-24 months were 52.4%. Most of the subjects were male (57.1%). The results of the analysis showed that nutritional status significantly affected the length of stay of diarrhea in children under five (p-value 0.001; PR 5.6; 95% CI 2.05-9.26).Conclusion: There is a significant relationship between nutritional status with the length of stay in children under five.
Characteristics of Chronic Suppurative Otitis Media (CSOM) patients who underwent tympanoplasty surgery at Sanglah General Hospital for the period 2017 - 2019
Authors: Rahayu Made Lely , Saputra Komang Andi Dwi , Ratnasari Made Gita , Wiratmaja Putu Agustya
Published: June 2021

Background: One way to deal with deafness from Chronic Suppurative Otitis Media (CSOM) is middle ear reconstruction surgery known as tympanoplasty. The success of surgery is when complete eradication of the disease is possible as well as hearing improvement. This study aims to evaluate the characteristics of chronic suppurative otitis media patients who underwent tympanoplasty surgery at Sanglah General Hospital for the period 2017 â€“ 2019.Methods: A retrospective descriptive study was conducted through secondary data from the medical records of CSOM patients who had undergone tympanoplasty surgery at Sanglah General Hospital in Denpasar during the January 2017 - December 2019 period. Variables assessed in this study were age, sex, address of residence, infected side, perforation surface area, CT-scan, culture, surgical findings, graft type and antibiotic therapy, post tympanoplasty tympanic membrane perforation condition, audiometry results before and after undergoing tympanoplasty. Data were analyzed using SPSS version 20 for Windows.Results: Most of the respondents were male (53.3%), aged 46 - 55 years (26.7%), and living in Denpasar (30.0%). Based on the ear side, the most infected were unilateral (53.3%) and the subtotal perforation surface area (78.3%). No visible abnormalities (40.0%) were the most cases on the CT-Scan, following by the Pseudomonas aeruginosa (21.7%) infection and surgical findings in the form of tympanic membrane perforation only (55.0%). Based on the 3 months post tympanoplasty condition, it was found that the perforation had closed (83.3%), normal audiometric results (38.3%), and a degree of improvement in the hearing threshold after undergoing tympanoplasty was found to be mostly 5-10 dB (48.3%).Conclusion: CSOM patients who underwent tympanoplasty surgery were mostly men, aged 46-55 years, unilateral, subtotal perforation, and no CT scan abnormalities. In comparison, the membrane perforation condition 3 months post tympanoplasty was closed, mild deafness before tympanoplasty, normal degree of deafness after tympanoplasty, and the average mean hearing threshold improvement was 5 - 10 dB.
Conjunctival Kaposiâ€™s sarcoma in Acquired Immunodeficiency Syndrome (AIDS) patient: a case report
Authors: Utari Ni Made Laksmi , Simanjutak Elbetty , Yuliawati Putu , Djelantik Anak Agung Ayu Sukartini , Kusumadjaja I Made Agus , Utama I Made Susila
Published: June 2021

Background: Kaposiâ€™s sarcoma (KS) is malignant neoplasm of the vascular endothelium, caused by Human Herpes Virus 8 (HHV 8). Clinical variants consist of classic KS, iatrogenic KS, and AIDS KS. The manifestation of KS in the eye may occur in the eyelids, the lacrimal sac or gland, the orbit and bulbar or palpebral conjunctiva. This case study aims to demonstrate the incidental finding of conjunctival Kaposi sarcoma (KS) leading to acquired immunodeficiency syndrome (AIDS) diagnosis.Case Presentation: A 34-years old male patient presented with a three-month history of progressively growing reddish mass in bulbar conjunctiva of the left eye. A mass with notable aggressive tumor characteristics heightened the suspicion for KS and comprehensive assessments were done accordingly. The patient was found to suffer from human immunodeficiency virus (HIV)/AIDS. Multistep approach treatment was commenced to treat AIDS-related KS and prevent recurrence in this case.Conclusion: Patients with undiagnosed HIV infection would benefit from early diagnosis initiated by AIDS-defining illnesses such as KS. Given early identification and comprehensive management, KS abridged the time to diagnosis of HIV infection.
Primary anterior hypospadias repair: a review of clinical outcomes
Authors: Jayaningrum I Gusti Ayu Agung Bella , Sudiatmika Dewa Gede , Sepa Krenni , Setiawan Yosua Hendrata Liman , Tillasman Natassya Sandra , Resta Ngurah Dwiky Abadi , Hartono Tri
Published: June 2021

Hypospadias is a common congenital urogenital deformation. Its most frequent form is anterior hypospadias, where the urethral meatus was located at the glans (glandular), just below the glans (sub-coronal), or on the distal shaft. Various surgical procedures can be performed to correct anterior hypospadias. The most common used procedures are meatal advancement and glanduloplasty incorporated (MAGPI), tubularized incised plate (TIP), and Mathieu repair procedures. Choosing which procedure to date there are no guidelines on determining which procedure to perform or which will produce the best results. We conducted a review to compare the outcomes of each procedure, considering cosmetic and functional aspects, as well as risks of complications. The results showed lack of evidences that perform direct comparison among the different outcomes; therefore, we have to rely on observational and descriptive sources. However, available evidence painted a picture of somewhat comparable outcomes on all aspects between the three procedures for anterior hypospadias. The underlying theme was the importance of selecting the appropriate procedure for each patient, considering each patientâ€™s unique anatomical presentation for the best cosmetic outcome, as well as the skill and confidence of each surgeon.
Direct air capture of CO2: A response to meet the global climate targets
Authors: Ozkan Mihrimah
Published: June 2021

Highlights

DAC can help deal with difficult to avoid emissions. Large-scale deployment of DAC requires serious government, private, and corporate support and investment particularly to offset the capital cost as well as operational costs. Further optimizations to the costs can be found in choice of energy source as well as advances in CO2 capture technology such as high capacity and selectivity materials, faster reaction kinetics, and ease of reusability.

Direct air capture (DAC) technologies are receiving increasing attention from the scientific community, commercial enterprises, policymakers and governments. While deep decarbonization of all sectors is required to meet the Paris Agreement target, DAC can help deal with difficult to avoid emissions (aviation, ocean-shipping, iron-steel, cement, mining, plastics, fertilizers, pulp and paper). While large-scale deployment of DAC discussions continues, a closer look to the capital and operational costs, different capture technologies, the choice of energy source, land and water requirements, and other environmental impacts of DAC are reviewed and examined. Cost per ton of CO2 captured discussions of leading industrial DAC developers with their carbon capture technologies are presented, and their detailed cost comparisons are evaluated based on the choice of energy operation together with process energy requirements. Validation of two active plants’ net negative emission contributions after reducing their own carbon footprint is presented. Future directions and recommendations to lower the current capital and operational costs of DAC are given. In view of large-scale deployment of DAC, and the considerations of high capital costs, private investments, government initiatives, net zero commitments of corporations, and support from the oil companies combined will help increase carbon capture capacity by building more DAC plants worldwide.

Graphic abstract
Penapisan dan Identifikasi Bakteri Penghasil Agarase dari Sampel Sedimen Laut Bara Caddi, Sulawesi Selatan
Authors: Zilda Dewi Seswita , Patantis Gintung , Sibero Mada Triandala , Fawzya Yusro Nuri
Published: June 2021

Agarase adalah enzim yang mampu menghidrolisis agar menjadi oligoagar yang sudah banyak diaplikasikan dalam industri kesehatan dan kosmetik. Bakteri laut merupakan mikroba yang paling banyak dilaporkan sebagai sumber untuk isolasi bakteri penghasil agarase. Penelitian ini bertujuan untuk melakukan penapisan, isolasi, dan identifikasi bakteri penghasil agarase dari sedimen laut. Sampel sedimen diambil dari pantai Pulau Bara Caddi, Sulawesi Selatan. Penapisan dilakukan menggunakan media air laut yang ditambahkan tripton 0,5%, ekstrak ragi 0,1%, dan agar 2%. Identifikasi dilakukan dengan amplifikasi gen 16S rRNA. Sebanyak 45 isolat berhasil dimurnikan, 16 diantaranya merupakan bakteri penghasil agarase. Pola zona bening yang terbentuk terlihat berbeda-beda, hal ini diduga disebabkan oleh perbedaan jenis agarase yang dihasilkan oleh masing-masing isolat. Hasil penelitian menunjukkan bahwa terdapat 4 genera bakteri yang memiliki kemiripan yang tinggi dengan 16 isolat bakteri penghasil agarase yang terdapat pada sampel sedimen yaitu Vibrio, Alteromonas, Salinivibrio, dan Marinobacter. Vibrio merupakan genus yang paling dominan diikuti oleh Alteromonas dan hanya satu isolat yang menunjukkan kesamaan dengan Salinivibrio dan Marinobacter. ABSTRACTAgarase is an enzyme that hydrolyze agar into agaro oligosaccharide which have been applied in health and cosmetic industries. Marine bacteria are the most widely reported microbes as a source for isolation of agarase-producing bacteria. This work was aimed to screen, isolate, and identify the agarase-producing bacteria from marine sediment. The sediment samples were collected from the sea around Bara Caddi Island, South Sulawesi. The screening of agarase-producing bacteria was carried out using seawater media containing 0.5% tryptone, 0.1 % yeast extract with 2 % agar. The identification of the bacteria obtained was carried out by amplification of the 16S rRNA gene. A total of 45 isolates were successfully purified, 16 of which were agarase-producing bacteria. The clear zone formed on solid medium by some isolates showed different pattern which may be caused by the type of agarase produced by each isolate. The results showed that there were 4 genera of bacteria which similar to the 16 isolates agarase-producing bacteria found in sediment samples i.e. Vibrio, Alteromonas, Salinivibrio, and Marinobacter. Vibrio is the most dominant genus followed by Alteromonas and only one isolate showed similarity to Salinivibrio and Marinobacter.
1828-1829 OSMANLI-RUS SAVAŞININ BİR SEMBOLÜ OLARAK PETERSBURG’TAKİ “TÜRK HAMAMI”
Authors: TANIK Saliha , YETKİN Gülhanım Bihter
Published: June 2021

Eskiçağlardan itibaren yıkanmaya verilen önem neticesinde ortaya çıkan ve sözlükteki karşılığı “yıkanacak yer” olan hamam yapıları, Roma ve Bizans dönemlerinde oluşturulan üslupla devamlılığını sağlamıştır. Roma ve Bizans dönemi hamam geleneği üzerinde şekillenen Türk hamamları, zamanla özellikle İslamiyetin kabulünün ardından kendisine özgü bir biçim kazanır. İslamiyet’in getirdiği inanç ve davranış farklılıkları ile Türk hamam yapısında oluşan önemli değişikliklerin, Osmanlı döneminde plan tipolojisinde gerçekleştirilen yeni düzenlemelerle ortaya çıktığı görülmektedir. Osmanlı’da, bu yapılara muhtelif işlevler yüklenir ve hamamlar genel anlamıyla gelir sağlamak amacıyla yapılır. 1828-1829 yıllarında vuku bulan Osmanlı-Rus savaşından sonra Rus Çarı Nikolay’ın kendi siyasi amaçları için bir mesaj mahiyetinde inşa ettirdiği “Türk Hamamı” bahsi geçen Osmanlı hamamlarından izler taşımaktadır. Çarın, Yekaterinburg parkında inşa edilmesi emrini verdiği hamam, önemli Rus mimarı Monigetti’nin üzerinde titizlikle durduğu projesinin bir ürünü olur. Söz konusu yapı, Osmanlı hamam teşekkülünden farklılıklar gösterse de işlev ve süsleme detayları bakımından benzer özellikler barındırır. Fakat, çalışmamıza konu olan eserin yanındaki minare formuyla dış görüntüsü Türk Cami mimarisini andırmaktadır. Süsleme özellikleri bakımından ise yapıya doğuya özgü arabesk bir bezeme anlayışı hakimdir. Nitekim bu çalışmada amacımız, Rus topraklarında ve bütünüyle Rus bakış açısıyla inşa edilen bir Türk yapısının öncelikle öz kültüründeki özelliklerini anlatmak, ardından her iki konstrüksiyon arasındaki benzerlikleri ve farklılıkları ortaya koymaktır.
FÂRÂBÎ’NİN SİYÂSET FELSEFESİNDE PEYGAMBERİN YASA KOYUCULUĞUNUN TEMELİNDE MÜTEHAYYİLE GÜCÜ
Authors: AYKIT Asiye
Published: June 2021

Yetkin bir mütehayyile ile temellendirilen nübüvvet teorisi Fârâbî’nin İslam düşüncesine özgün katkılarından birisidir. Bu makalenin amacı Fârâbî’nin siyaset düşüncesinde, peygamberin yasa koyuculuğunun temelinde yer alan mütehayyile kuvvesini incelemektir. Araştırmamızda peygamberin küllî hakikatleri yasalar şeklinde vaz’edilebilmesinin ancak yetkin bir mütehayyilenin temsil kabiliyeti ile mümkün olduğu sonucuna ulaşılmıştır. Ayüstü âlemi oluşturan mufarık akıllardan taşan feyiz, nebînin mütehayyilesi vasıtasıyla ayaltı âlemi de inşa etmektedir. Bu sistemde mütehayyyile kuvvesi, Faal Akıl’dan gelen feyzi müşahhaslaştırıp düzenleyen ve her seviyeden insanın idrak edebileceği hale getiren merkezi bir kuvvedir. Ma’kûlleri duyulur formlar şekline dönüştüren mütehayyile olmasa yasaların vaz’edilip insanlara ulaştırılması gerçekleşememektedir. Üst ilkelerle irtibat kurmak için aynı zamanda nebînin yetkin bir nâtıka gücünün de bulunması gerekmektedir. Çalışmamızda son olarak Faal Akıl’dan gelen feyzi temsil eden mütehayyilenin bu bağlamda nâtıka kuvvesi ile olan irtibatı da yasa koyuculuk açısından sorgulanmaktadır.
OKUL ÖNCESİ DİN, DEĞER VE AHLAK EĞİTİMİNDE MONTESSORİ METODU - INDIANA ÖRNEĞİ -
Authors: KIZILABDULLAH Yıldız
Published: June 2021

Montessori eğitim metodu, özellikle okul öncesi eğitim olmak üzere, eğitimin farklı kademelerinde benimsenmiş ve uygulanmıştır. Montessori eğitim metodunun, geleneksel eğitimden öğrenci, öğretmen, disiplin, okul ortamı, kullanılan materyaller ve gelişim özelliklerine yaklaşım noktasında farklılaştığı kabul edilmektedir. Daha çok genel eğitimde uygulanan Montessori metodu, din, değer ve ahlak eğitiminde de kullanılmaktadır. Bu araştırma, Amerika Birleşik Devletleri Indiana Eyaleti’nde bulunan Montessori okullarını konu edinmektedir. Çalışmada, nitel araştırma yöntemi kapsamında fenomenolojik yaklaşım benimsenmiş olup, veri toplama aracı olarak gözlem, görüşme ve doküman incelemesi kullanılmıştır. Çalışmanın konusu, maksimum çeşitlilik ve kartopu yoluyla seçilen Montessori eğitmenlerinden oluşan çalışma grubu ile Montessori metodunda din, değer ve ahlak eğitimini tartışmaktır. Araştırmaya katılan Montessori okullarında yapılan gözlemler ve bir okula ait program incelemesi araştırma bulgularının yorumlarında yardımcı olarak kullanılmıştır.
Developing a novel psychographic-behavioral qualitative mapping method for exergames
Authors: Smith James , Lee Matthew D , Ellis Louise A , Ijaz Kiran , Yin Kathleen
Published: June 2021

Location-based augmented reality games, used in several smartphone devices, have the potential to improve health outcomes by transforming gaming from a sedentary leisure pursuit to an active leisure pursuit thus having positive physical, psychological and social implications. We consider two games, Harry Potter: Wizards Unite and Pokémon GO, by qualitatively mapping both psychographic and behavioral data to profile groups of players to fully understand how we can better design location-based augmented reality exergames to improve exercise and health. Data was collected through an online open-ended, text-box survey (proforma) hosted on Qualtrics, with participants reached via virtual snowballing. The proforma was posted on four subreddit forums dedicated to Harry Potter: Wizards Unite and Pokémon GO for two weeks, and 1052 participants responded. Our study aligns with a deductive category application, with all highlighted excerpts coded using a predetermined coding scheme. Overall, three themes were identified: 1) Player Loyalty, 2) Player Involvement and 3) Player Constraints. We conclude that psychographic constraints experienced can negatively influence player preference and behavior. However, psychographic enablers such as player involvement with the franchise and player loyalty toward the brand can act to sustain continued gameplay across different player types and should not be underestimated as a powerful influence in decision-making, choice behavior, and behavior change (to improve exercise and health).
Editorial. Vol. 8, Issue 2
Authors: De Gloria Alessandro
Published: June 2021

Editorial for Issue 2, Vol. 8 of the International Journal of Serious Games
Lunaparkların “Pierre Bourdieu Sosyolojisi “ Üzerinden Değerlendirilmesi
Authors: AKOĞLAN KOZAK Meryem , ARABOĞA Yeşim
Published: June 2021

Bir rekreasyon alanı ve sunulan eğlencelerin gerçek hayatı simgeleyen bir oyun olması nedeniyle, bu çalışmada lunaparklar Pierre Bourdieu’ nun sosyolojisi kapsamımda değerlendirilmiştir. Bourdieu’nun sosyolojisi, habitus, alan ve oyun metaforu yanında sermaye kavramlarını da açıklayan kapsamlı bir kuram olması nedeniyle tercih edilmiştir. Ayrıca bu kuram, güç ve tahakküm ilişkilerinin, alan içerisinde farklı konumlarda bulunan bireylerin farklı çıkarlarının ve alanın kendine ait kurallarının oyun metaforu ile vurgulamaktadır. Böylece, lunaparklardaki eğlence hizmetlerinin ziyaretçi ve çalışan özneleri ile açıklanmasına uygun bir dayanak oluşturacağı düşünülmektedir. Bu çalışmada öncelikle, lunaparkların dünyadaki ve Türkiye’deki tarihi gelişimi ile oyun unsurlarına yer verilmiştir. Sonrasında ise lunaparkların çalışan ve ziyaretçiler bakımından habitusu, sunulan hizmetlerin alanı ve oyun metaforu ile açıklanması ve sermaye boyutunun değerlendirilmesine çalışılmıştır.
COVID- 19 Pandemisi ve Azerbaycan Turizmi: Sektör Temsilcisi Görüşlerinin İncelenmesi
Authors: TUTAR Hasan , SARKHANOV Teymur
Published: June 2021

Covid-19 pandemisi nedeniyle bütün sektörlerde olduğu gibi turizm sektöründe de bir kriz yaşanmaktadır. Bu araştırmada söz konusu kriz durumunda Azerbaycan turizm işletmelerinin genel görünümünü üzerinde durulması amaçlanmaktadır. Bu amaçla, Azerbaycan’da turizm ve otel işletme yöneticilerinin görüşlerine dayalı yorumlar geliştirmek amacıyla araştırma yöntemi itibariyle nitel araştırma olarak tasarlanmıştır. Araştırmada güncel ve mevcut durumu analiz etmek amaçlandığı için araştırma nitel araştırma desenlerinden durum çalışması desenine göre tasarlanmıştır. Araştırmanın örneklemi amaçlı örnekleme tekniklerinden ölçüt örnekleme tekniğine göre belirlenmiş ve veriler görüşme tekniğiyle ve yarı yapılandırılmış görüşme formu yardımıyla toplanmıştır. Verilerin analizinde içerik analizi tekniği kullanılmıştır. Bu amaçla toplanan veriler analiz birimlerine ayrılarak kavramlara, oradan kodlara, sonra kategorilere ve daha üst bir soyutlama düzeyi olan temalara ulaşılarak analizler yapılmıştır. Research findings show that Azerbaijan is experiencing a crisis due to the pandemic, as in the whole world, and the tourism sector is one of the sectors affected by this crisis, especially due to the restriction of transportation.
Türkiye Merkezli Hakemli Turizm Dergileri Üzerine Bir İnceleme
Authors: ALRAWADİEH Zaid , DEMİRDELEN ALRAWADIEH Derya
Published: June 2021

Akademik dergiler birçok disiplinde olduğu gibi turizmde de bilginin üretilmesi ve yayılmasına vesile olan önemli araçlardandır. Bu araştırmada, Türkiye merkezli turizm ve ağırlama dergileri ele alınarak betimleme yöntemiyle bir inceleme yapılmıştır. Çalışmanın bulgularına göre; mevcut olan dergilerin üçte ikisinin son 4 yılda ortaya çıktığı, bu dergilerden ücret talep edenlerin bir sayıda yayımladığı ortalama makale sayısının, ücretli olmayan dergilerde yayımlanan ortalama makale sayısından 4 kat fazla olduğu, mevcut dergilerin 3 adetinin ise yağmacı dergilerin listesinde yer aldığı ortaya çıkmıştır. Dergilerin kalitesini belirleyen başlıca unsulardan biri olan editörlerin akademik profillerine bakıldığında ise; söz konusu editörlerin çoğunun turizm ve ağırlama alanında en saygın ilk 10 dergide hiç yayını olmadığı, üçte birinin ise bilimsel kuruluşlarca muteber olarak kabul edilen Web of Science ve Scopus indeksli dergilerde hiç yayını olmadığı ortaya çıkmıştır. Ayrıca, başlıca sorumluluklarından biri bilimsel geçerlik ve güvenirliği denetlemek olan bu editörlerin önemli bir kısmının yağmacı dergilerde yayını olduğu ortaya çıkmıştır.
Unutulmaz Turizm Deneyimi ve Tekrar Ziyaret Etme Niyeti Arasındaki İlişki
Authors: KAHRAMAN Onur Cüneyt , TANRIVERDİ Haluk
Published: June 2021

Bu araştırmanın amacı, unutulmaz turizm deneyimi altında yer alan boyutların turistlerin tekrar ziyaret etme niyetine etkisinin incelenmesi ve turizm türlerine katılan turistlerin deneyimleri arasında bir farklılık olup olmadığının araştırılmasıdır. Bu kapsamda, nicel araştırma tekniklerinden anket kullanılmış ve unutulmaz turizm deneyimi ve tekrar ziyaret etme niyeti ölçekleri veri toplama aracı olarak kullanılmıştır. Bu ölçekler aracılığıyla, unutulmaz turizm deneyimi boyutları ve tekrar ziyaret etme niyeti arasında bağlantı kuran kavramsal bir model önerilerek test edilmiştir. Bolu ilini ziyaret eden turistlerden kolayda örneklem yöntemi kullanılarak 420 geçerli anket toplanmıştır. Gerçekleştirilen analiz sonucunda unutulmaz turizm deneyimi boyutları arasında yer alan yerel kültür ve yenilenme deneyimlerinin tekrar ziyaret etme niyetini olumlu olarak etkilediği sonucuna ulaşılmıştır. Ayrıca, kültür turizmi, yayla turizmi, termal turizm ve kamp ve karavan turizmine katılan turistlerin unutulmaz turizm deneyimi boyutlarında yer alan yenilik, yerel kültür ve yenilenme boyutlarına göre farklılıklar içerdiği saptanmıştır.
ENGLISH INSURANCE LAW REFORMS: LESSONS FOR SOUTH AFRICA
Authors: Samantha Huneberg
Published: June 2021

Insurance law in the United Kingdom (UK) has recently undergone significant reforms. Until 2015, insurance law in the United Kingdom was still largely regulated by the Marine Insurance Act 1906. This meant that a statute created over a hundred years ago was still regulating insurance law. The need for the more recent reforms was evidently dire. The Law Commission undertook an investigation that highlighted the need for new insurance laws. The result was the enactment of the Insurance Act 2015. There are some significant changes in the new Act concerning fraudulent claims, breaches of good faith and the duty of disclosure. The new laws appear to be much more pro-policyholder than was the case in the previous regime. This article undertakes a detailed analysis of these reforms and also presents a comparison with South African laws. The ultimate question is whether South Africa can learn anything from the recent reforms to UK insurance law.
KAN DOLAŞIMI ENFEKSİYONLARININ ERKEN TANISINDA İNFLAMATUVAR BELİRTEÇLERİN DEĞERLENDİRİLMESİ
Authors: ŞİRİN Fevziye Burcu , ŞİRİN Mümtaz Cem
Published: June 2021

Amaç

Bu çalışmanın amacı, kan dolaşımı enfeksiyonu

(KDE)'nun tanısında kan kültürüne alternatif olarak

kullanılabilecek prokalsitonin (PCT), yüksek sensitif

C-reaktif protein (hsCRP), hsCRP/albümin oranı

(CAR) ve tam kan sayımı (TKS) parametrelerinin tanısal

performansını araştırmaktır.

Gereç ve Yöntem

Mayıs 2019-Mayıs 2020 tarihleri arasında hastanemizde

yatarak tedavi gören ve kan kültürü, PCT,

hsCRP, TKS ve albümin tetkikleri eşzamanlı istenilen

hastaların dosyaları retrospektif olarak incelendi.

Hastalar kan kültüründe üremesi olanlar (n=95) ve

kan kültüründe üremesi olmayanlar (n=157) olarak iki

gruba ayrıldı. Kan kültürleri, BacT/ALERT 3D (bioMérieux,

Fransa) otomatize kan kültürü sisteminde takip

edildi. Prokalsitonin ve hsCRP düzeyleri, Roche Cobas

6000 modüler sisteminde (Roche Diagnostics, Almanya)

ölçüldü. Tam kan sayımı analizi, UniCel DxH

800 hematoloji analizöründe (Beckman Coulter, ABD)

gerçekleştirildi.

Bulgular

Hemokültür pozitif ve hemokültür negatif grup arasında,

PCT, hsCRP, CAR, nötrofil, lenfosit, hemoglobin,

eritrosit dağılım genişliği (RDW), ortalama trombosit

hacmi (MPV), nötrofil/lenfosit oranı (NLR), lenfosit/

monosit oranı (LMR), trombosit/lenfosit oranı (PLR),

MPV/trombosit oranı (MPV/PLT) ve albümin düzeyleri

bakımından istatistiksel olarak anlamlı fark bulundu

(p
Behavioural phenotyping of C. elegansresponse to Keio single-gene E. coli mutants v1
Authors: Moore Saul
Published: June 2021

Protocol for screening Caenorhabditis elegans behavioural response to E. coli BW25113 single-gene deletion mutants from the 'Keio Collection', to identify behaviour-modifying mutations for follow-up analyses. Duration of experiment: 6 weeks total (6 replicates over consecutive weeks)
How to import OAI-PMH identifiers in OpenRefine v1
Authors: Marchitelli Andrea , Moi Alessandra , Bianchini Carlo
Published: June 2021

Protocollo per importare in OpenRefine una lista di identificatori OAI-PMH per successive elaborazioni.
Numerical Design Method of Quasilinear Models for Nonlinear Objects
Authors: Gaiduk A. R.
Published: June 2021

Design modern methods of nonlinear control systems of nonlinear objects in the majority assume transformation of initial object model to some special forms. In these cases, it is reasonable to use quasilinear models as they can be designed on condition only of differentiability of the nonlinearities of the initial objects models. These models allow to find control analytically, i.e. as a result of the solution of some equations system, if the object, naturally, meets the controllability condition. The quasilinear models are synthesized traditionally analytically, bytransformation of initial nonlinear models using operation of the taking of partial derivatives from the nonlinearities of the initial objects models and the subsequent integration of these derivatives on the auxiliary variable with application of the known formulas of differentiation and integration. However, in many cases, the objects nonlinearities have so complicated character, that the operations of the differentiation and, in particular, the integration are executed very difficult by shown way. This complexity can be overcome by application of the new numerical design method of the quasilinear models, which excludesneed of the analytical differentiation and integration, but demands considerable number of the arithmetic operations. But now it is not the big problem since the modern multiprocessor controllers can carry out all the necessary operations for a short time. The developed method allows to receive rather exact, approximate piecewise-constant quasilinear models for the objects with the complicated nonlinearities. It is convenient to apply such models at numerical control of the nonlinear objects. The efficiency of a numerical method is shown by comparison of phase portraits of piecewise constant quasilinear and nonlinear models of a simple object and also by comparison of the state variables values of these models. The offered method can be applied to nonlinear control systems design for the nonlinear, characterized by complicated characteristics objects ship, aviation, chemical, agricultural and other industries.
Methods of Formation Control for a Group of Mobile Robots (a Review)
Authors: Kurochkin S. Yu. , Tachkov A. A.
Published: June 2021

The multi-robot formation control is an essential issue in robotics. This review focuses on important lines of research on current contr ol is s ues and s tr ateg ies on a g r oup of unmanned autonomous vehicles/r obots for mation. In this paper, we pr ovide a br ief description of each method characterizing its key benefits and drawbacks. A multilayered classification of both centralized and decentralized formation control methods is proposed. We consider the classification of robot communication topologies in terms of centralized control. Seminal works dedicated to the practical application of centralized approach are briefly discussed. The majority of centralized methodsare represented by a " leader-follower" approach, taking into account the robot’s dynamics models. Furthermore, the most common models of vehicle dynamics are mentioned. In the framework of decentralized approach, behaviour-based algorithms, as well as swarm algorithms, are discussed. Then, we present an outlook of both centralized and decentralized virtual structure methods used in robot formation control. The described modifications of these methods allow tracing the evolution of the virtual structure approach to hybrid algorithms used for cooperative movement of a group of robots. This paper deals with formation control approach considering communication delays and low carrying capacity in an inter-vehicular communication network as very few works discussed this issue despite its relevance. We pointed out the main development trends of formation control approaches. The most effective approach is the integration of various methods of the formation control so that their disadvantages are nullified. As the same time, the most common disadvantage of discussed formation control methods is their weak conceptual framework in terms of kinematic and dynamic constraints of robots.
Study of Dynamic Modes of Current Stabilization Systems of Powerful Electromagnets with Pulse-Width Modulation
Authors: Lur’e M. S. , Lur’e O. M. , Frolov A. S.
Published: June 2021

This study is devoted to the consideration of a method for assessing the stability of systems with pulse-width modulation, based on the linearization of its equivalent system with pulse-width modulation. An approximate study of the dynamic modes of operation of systems with pulse-width modulation, taking into account the stability for the system of automatic control of the supply current of electromagnets under the conditions of external and internal interference, is carried out. Variants of execution of schemes of pulse-width regulators for the power supply of an electromagnet based on a unipolar and bipolar element with pulse-width modulation are presented. The possibility of linearization of systems with pulse-width modulation for the subsequent detailed assessment of the stability of such systems is shown. The prospects of using functional differential equations for stability analysis of automatic systems with pulse-width modulation are shown. The frequency characteristics of an equivalent pulse system are analyzed using the example of a current stabilization system of high-power electromagnets with a pulse-width regulator, taking into account the replacement of the latitude modulation by the amplitude one. Based on the analysis of the resulting transfer function, which is a stable linearized equivalent open system, the ways of evaluating the stability of the original system with pulse-width modulation using the Nyquist stability criterion are proposed. The conclusion is made about the advantage of a system with PWM, in relation to a system with AIM, in terms of stability, and recommendations are given for the use of the obtained data in the analysis oftransients in such systems.
Lateral Motion Control Invariance Helicopter on the Roll Angle. Analytical Synthesis
Authors: Zubov N. E. , Ryabchenko V. N.
Published: June 2021

For the linearized fourth-order model of the isolated lateral motion of a single-rotor helicopter as a MIMO system containing two inputs, the control is analytically synthesized, which ensures the invariance of the roll angle motion in the presence of disturbances in the control channels, as well as the required placement of the poles of the closed-loop system, given any specific values from the area of their stability. The approach to the synthesis of invariant control consists in finding a matrix of feedback coefficients of a linear system that satisfies the invariance conditions, which are a system of power matrix equations of a certain design. The synthesis is based on the application of theor ems based on the use of the regularization condition of the matrix equation and the invariance conditions under disturbances in the control channels, as well as theorems that make it possible to place the poles of the MIMO system using the original decomposition of the control object. Regularization of a matrix equation is understood as a solution to the problem of providing a given set of singular values for an inverted symmetric square matrix. The invariance of the MIMO system is considered with respect to unmeasured disturbances inthe control channels. The use of such an approach to the synthesis of invariant control made it possible to obtain an analytical solution that is versatile and can be applied in various flight modes of single-rotor helicopters with different dynamic properties. The results of the numerical synthesis of the lateral motion of a singlerotor helicopter using the obtained laws of invariant control, which confirm the reliability of the analytical expressions, areshown.
SÜRREALİZM SANAT AKIMININ GİYSİ TASARIMLARINDA KULLANILMASI
Authors: Kalebek Nazan , Sayar Sena
Published: June 2021

Sanat ve moda için farklı tanımlar yapılsa da geçmişten beri aralarındaki ilişki bilinmektedir. Moda da sanat gibi ilhamını toplumdan almaktadır. Sanat insanın iç dünyasında yaşadığı duyguları dışa vurmada kullanıldığı bir araçken moda toplumun zevklerini yansıtan, kişinin kendini ifade etme, toplumda kendine yer etme de kullandığı bir unsurdur. Giyilebilir sanat düşüncesi 19. yy’ da görülmeye başlamıştır. 1960’ lı yıllardan sonra moda hızla değişmeye başlamış ve sanat akımları her dönemde modayı etkilemeyi başarmıştır. Andre Breton’un 1924 tarihli manifestosuyla başlayan Dr. Sigmund Freud’un düşünceleri üzerine kurulu Sürrealizm özgür ve yaratıcı düşüncenin hakim olduğu bir sanat akımıdır. Sürrealizm akımı Türkçeye “gerçeküstü akımı” olarak geçmiştir. Sürrealist sanatçılar ve modacılar arasındaki iletişim tasarımlarda yansırken kıyafetlerde farklı tasarımların oluşmasına da yol açmıştır. Günümüzde de bu akıma öncülük eden sanatçıların eserlerinin tasarımlara yansıması görülmektedir. Bu çalışmanın amacı halen izleri devam etmekte olan bu sanat akımını yorumlayarak yeni tasarımlara yansıtmaktır. Sürrealizm eserlerinde kullanılan sıra dışılığın giyilebilir giysi tasarımlarına aktarılması amaçlanmıştır. Yapılan bu tasarımlar bilgisayar ortamında zenginleştirilmiş, görselleri sunulmuştur.
ALGISAL İMAJIN DESTİNASYON SADAKATİ ÜZERİNDEKİ ETKİSİNDE DESTİNASYON MEMNUNİYETİNİN ARACILIK ROLÜ
Authors: Öztürk Yakup
Published: June 2021

Algılanan destinasyon imajı, turistlerin memnuniyetini etkilediği gibi, tekrar ziyaret niyetine yön vererek destinasyon sadakatinin oluşmasına da katkıda bulunur. Bu çalışmada yerli turistlerin destinasyon imajı algılarının destinasyon sadakatine etkisinde destinasyon memnuniyetinin aracılık rolü araştırılmıştır. Analiz için kullanılan veriler Antalya/Kaş’ı ziyaret eden 449 turistten anket tekniği kullanılarak elde edilmiştir. Yapısal eşitlik modeli ile destinasyon imajı ve destinasyon memnuniyetinin destinasyon sadakati üzerindeki etkileri yol analizi çizilerek test edilmiştir. Araştırma bulguları genel olarak kavramsal modeli desteklemekte ve destinasyon imajının destinasyon sadakati üzerinde etkili olduğunu ve bu ilişkiye destinasyon memnuniyetinin aracılık ettiğini göstermektedir. Çalışmada elde edilen analiz sonuçlarına bağlı olarak yorum ve öneriler geliştirilmiştir.
1871'DEN GÜNÜMÜZE ALMAN DIŞ POLİTİKASININ GELİŞİMİNE GENEL BİR BAKIŞ
Authors: Koç Engin
Published: June 2021

1871 yılından günümüze Alman dış politikasında yaşanan temel dönüşüm noktalarının incelendiği bu çalışma, Avrupa’nın en kalabalık, en zengin ve siyaseten en etkili ülkesinin siyasal dönüşümünde etkili olan unsurları ele almaktadır. Avrupa siyasi ve ekonomi tarihi açısından mümtaz bir yeri olan Almanya’nın ulus inşası, I. ve II. Dünya Savaşlarındaki temel politik hedefleri, Soğuk Savaş dönemi ve sonrasında sergilemiş olduğu dış politika yönelimleri bu çalışmanın en önemli konusu olmaktadır. Çalışma, Alman siyasi tarihi bağlamında teorik bir analizden ziyade ortaya çıkan majör sosyal değişimlerin dış politika üzerindeki sonuçlarını ele almak ve Alman dış politikasına genel bir bakış açısı sunmak amacıyla kaleme alınmıştır. Bununla birlikte, çalışmada II. Dünya Savaşı öncesi ve sonrası Almanya’nın uluslararası politikadaki sahiplendiği siyasi roller analiz edilmiştir.
MÜZİK ÖĞRETMENLİĞİ ALANINDA YAPILAN ARAŞTIRMALAR ÜZERİNE BİR İNCELEME
Authors: Aydınlı Gürler Demet
Published: June 2021

Bu araştırmada Türkiye’de 2010-2020 yılları arasında müzik öğretmenliği programlarında tamamlanan 340 lisansüstü tez yıl, tür, üniversite, enstitü, anahtar kelime, konu, yöntem, çalışmaya dahil olan gruplar, örneklem/çalışma grubu büyüklüğü/belirleme yöntemi, veri toplama araçları, geçerlik ve güvenirlik yöntemleri, veri analiz yöntemleri başlıklarına göre sayısal dağılımı açısından incelenmiştir. Araştırmada, lisansüstü tez çalışmalarının belirlenen kategoriler üzerindeki dağılımını ortaya koymak ve bu alanda yapılacak yeni çalışmalara kaynak oluşturulmasına katkı sağlamak amaçlanmıştır. Araştırma betimsel bir çalışma olup araştırma verilerinin analizinde, doküman incelemesi tekniği ve içerik analizi yöntemi kullanılmıştır. Lisansüstü tezler incelenerek konularına göre sınıflandırılmış, tezlerin frekans (f) ve yüzde (%) dağılımları yapılmış ve sonuçlar ilgili tablolarla sunulmuştur. Araştırmada elde edilen bazı bulgulara göre tezlerin; 231’i yüksek lisans, 109’u ise doktora düzeyindedir. En fazla lisansüstü tez 2010 yılında Gazi Üniversitesinde tamamlanmıştır. Araştırma kapsamındaki tezlerin bir kısmında, kullanılan örneklemin büyüklüğünden, örneklem belirleme yöntemlerinden ve geçerlik-güvenirlik tekniklerinden bahsedilmediği görülmüştür. Araştırmanın bulgularından yola çıkılarak konu ile ilgili önerilere yer verilmiştir.
Parallel iteration of two-step Runge-Kutta methods
Authors: Nguyen Thu Thuy
Published: June 2021

In this paper, we introduce the Parallel iteration of two-step Runge-Kutta methods for solving non-stiff initial-value problems for systems of first-order differential equations (ODEs): y′(t) = f(t, y(t)), for use on parallel computers. Starting with an s−stage implicit two-step Runge-Kutta (TSRK) method of order p, we apply the highly parallel predictor-corrector iteration process in P (EC)mE mode. In this way, we obtain an explicit two-step Runge-Kutta method that has order p for all m, and that requires s(m+1) right-hand side evaluations per step of which each s evaluation can be computed parallelly. By a number of numerical experiments, we show the superiority of the parallel predictor-corrector methods proposed in this paper over both sequential and parallel methods available in the literature.
A new condition for a graph having conflict free connection number 2
Authors: Pham Ngoc Diep
Published: June 2021

A path in an edge-coloured graph is called conflict-free if there is a colour used on exactly one of its edges. An edge-coloured graph is said to be conflict-free connected if any two distinct vertices of the graph are connected by a conflict-free path. The conflict-free connection number, denoted by cf c(G), is the smallest number of colours needed in order to make G conflict-free connected. In this paper, we give a new condition to show that a connected non-complete graph G having cf c(G) = 2. This is an extension of a result by Chang et al. [1].
NGHIÊN CỨU SỰ KHUẾCH TÁN CỦA NGUYÊN TỬ XEN KẼ TRONG HỢP KIM XEN KẼ AuSi VỚI CẤU TRÚC LẬP PHƯƠNG TÂM DIỆN
Authors: Nguyen Quang Hoc , Nguyen Duc Hien , Nguyen Ngoc Le , Vu Thuy Linh , Pham Huyen Trang , Le Hong Viet
Published: June 2021

The paper derives analytic expressions of the diffusion coefficient depending on strain and pressure for the interstitial alloy AB with FCC structure by the statistical moment method based on previous studies for metals and semiconductors. Theoretical results are applied to alloy AuSi. Our numerical results satisfy the Arrhenius law
Study on optical and magnetic properties of FexNi1-xMn2O4 materials
Authors: Pham Vu Bich Hang , Nguyen Hai Yen , Phung Thi Thanh Mai , Dang Duc Dung , Nguyen Manh Hung , Nguyen Cao Khang
Published: June 2021

In this study, we present the process of synthesis FexNi1-xMn2O4 (x = 0; 0.1; 0.3; 0.5; 0.7; 0.9; 1) by method sol-gel. Scanning electron microscope results shows that the particle size is about 50 nm. The X-ray diffraction diagram shows that the samples are single phase, changing structure clearly as the x ratio increases from 0 to 1. The lattice constant, the bond length also changes with x-value as shown on the Raman scattering spectrum. The results of the vibrating sample magnetometer show that the magnetism of the material FexNi1-xMn2O4 changes with the value of x and reaches a maximum in the range x from 0.5 to 0.7.
Human breast cancer cell inhibitory constituents from Tetradium ruticarpum
Authors: Nguyen Phi Hung , Tran Quoc Toan , Nguyen Anh Tuan , Trinh Ngoc Thao Vy , Ngo Thi Ngoc Yen , To Dao Cuong , Dang Ngoc Quang
Published: June 2021

Three alkaloids (named rutaecarpine (1), evodiamine (2), schinifoline (3) and one phenylpropanoid, integrifoliodiol (4)) have been isolated from the EtOAc extract of the fruits of Tetradium ruticarpum (A. Juss.) T. G. Hartley collected in Lang Son province. Their structures have been identified by using 1D and 2D NMR spectroscopies. All four compounds were tested for their cytotoxicity against the human breast cancer cell line (MCF-7) and tamoxifen-resistant breast cancer cell line (MCF\TAMR). The results showed that rutaecarpine (1) inhibited the growth of MCF7 and MCF\TAMR with its IC50 values of 41.2 and 64.6 µM, respectively. In addition, compounds 1, 2, and 4 showed moderate activity toward MCF-7 cell line.
Study on some of the physiological and biochemical indexes under the age of development of banana fruit (Musa paradisiaca L.) grown in Thanh Tri, Hanoi
Authors: Le Van Trong , Nguyen Nhu Khanh
Published: June 2021

Research to determine the ripening time of the fruit is the scientific basis for better harvesting and preservation. Physiological and biochemical methods were used to analyze the changes of some indicators according to the growth and development of banana fruit grown in Thanh Liet commune, Thanh Tri district, Hanoi from the time of its formation until the fruit ripening. The results showed that the banana reached the maximum size at 16 weeks old, at this time the peel was yellow due to the decrease in chlorophyll and increased carotenoid content. The content of vitamin C and total organic acid content reached their maximum when the fruit at 12 weeks old, then decreased gradually. Starch content increased to 14 weeks old, then decreased. Reduced sugar content increased gradually to 16 weeks old and then decreased. Protein content decreased gradually from fruit formation until fruit ripening, lipid content increased gradually to 15 weeks old, then decreased. Through the research process, we have determined that the physiological ripe time of banana fruit was 16 weeks old, this is the time when the fruit stops growing and accumulates many nutrients.
Effect of salicylic acid on some physiological indices of Chrysanthemum cv “mai vang” cut flowers
Authors: Cao Phi Bang , Tran Thi Thanh Huyen , Le Thi Man , Chu Thi Bich Ngoc , Phung Thi Lan Huong
Published: June 2021

Chrysanthemum (Chrysanthemum sp.) has an important economic and medicinal value. This plant is the second most important cut flower produced in the world. Salicylic acid is a growth regulator with multifunction that is involved in plant physiology. In this works, the effect of salicylic acid at different concentrations (0.0; 0.25; 0.5; 0.75; 1.0; 1.5 and 2.0 mM, respectively) on physiological characteristics of Chrysanthemum "mai vang" cut flowers was investigated. Research results indicated that salicylic acid affected the content of photosynthetic pigments and chlorophyll fluorescence of leaves as well as anthocyanin content in the petals Chrysanthemum cv. “mai vang” cut flowers. Salicylic acid at concentrations of 0.25 - 0.5 mM increases the content of chlorophyll a, chlorophyll b, total chlorophyll, and carotenoids in leaf tissue at days 2 to 5 compared to day 1. The content of these photosynthetic pigments did not change through the experiments under influence of 0.75-1.0 mM salicylic acid. Meanwhile, salicylic acid at the concentration of 1.5 - 2.0 mM reduced photosynthetic pigment content at days 3 - 5 compared to day 1. A decrease of Fv\Fm value from day 1 to day 5 was observed in all experimental formula, the smallest reduction was found in the 0.25 and 0.5 mM treatments. Anthocyanins were higher accumulated in Chrysanthemum "mai vang" petals in all experimental formulas at days 2 to 4 than at day 1. At day 5, the anthocyanin content was still higher than at day 1 under salicylic acid treatments with concentrations of 0.25 - 0.75 mM.