bluuebunny/crossref_metadata_2025 huggingface dataset:
Cement- Nanosilica Stabilized Fibre Reinforced Rammed Earth: Compressive and Flexure Behaviour
Authors: A Neha Vivek , P Prasanna Kumar , Reddy Divijendranatha
Published: July 2023

Rammed earth (RE) is a brittle material that can undergo sudden catastrophic failures under ultimate stress. Such sudden catastrophic failures can be avoided in RE structures with the addition of randomly oriented polypropylene fibres where crack propagation can be inhibited. Further, the strength of RE can be enhanced by the addition of nanomaterials, which make RE denser because of their high specific surface area. This research deals with studies on the effect of polypropylene fibre and nanosilica on the behaviour of cement stabilized rammed earth (CRE) under compression and flexure. The effect of fibre volume fraction and nanosilica content on the strength and stress–strain characteristics has been evaluated. Three polypropylene fibre volume fractions (0.2%, 0.3% and 0.4%) and five nanosilica contents (0.2%, 0.4%, 0.6%, 0.8% and 1%) were considered in this investigation. The compressive strength of fibre reinforced CRE increased by 30% for 0.3% of polypropylene fibre content and by 41% for 0.6% of nanosilica content when compared to CRE. The strain at peak stress has significantly increased with the addition of fibres indicating improved ductility and post-peak response of the material. The microscopic analysis showed that the addition of nanosilica has contributed to a denser packing of soil particles and hence, might have increased the compressive strength.
Evaluation of the effect of Age-Related Macular Degeneration type and stage on the risk of Parkinson’s disease
Authors: Yasar Erdogan , Gurlevik Ugur , Bilgec Mustafa Deger , Gunes Muzaffer
Published: July 2023

Purpose
To investigate the association of Parkinson’s Disease(PD) with Age-Related Macular Degeneration(AMD) type and stage.
Methods
Our prospective study, the dry-type AMD group consisted of 296 patients with early stage and 284 patients with late-stage. The neovascular AMD group included 285 early-stage and 277 late-stage patients. The control group consisted of 300 patients who were similar in terms of age and gender. AMD patients will be grouped as dry and neovascular type, as well as the early and late-stages. The patients were questioned about the use of drugs for PD, and the use was recorded as having the disease. In the absence of drug use, detailed inquiries were made for both diseases. If any of the complaints seen in the PD was present, the patient was referred to a neurologist, and the presence or absence of the PD was confirmed.
Results
PD was detected in 1% of the control group and 4.6% in the neovascular type AMD group, and this difference was statistically significant (p:0.04). This significant difference was present in both the early stage (%4.5) and late-stage (%4.6 ) (p:0.04, p:0.04). In addition, PD was determined 3.78 times greater among neovascular AMD patients(p:0.03), and significant association was present in both early-stage (3.72 times) and late-stage (3.82 times) (p:0.03, p:0.03). In the dry-type AMD group 2.7% PD was detected and there was no statistically significant difference compared to the control group (p > 0.05). This difference was not significant in the early stage (%2.3) or late-stage (%2.8) and also there was no significant association with dry-type AMD (p > 0.05). Also, unilateral and bilateral involvement in AMD was not associated with PD disease (p > 0.05).
Conclusions
Our study revealed the relationship between early and late-neovascular AMD and PD. However, this significant relationship was not detected between early and late-neovascular AMD and PD. Common pathways mediated by dopamine reduction in neovascular AMD and Parkinson's disease may explain the association of neovascular AMD with a higher risk of Parkinson's disease.
Decoding Microbial Enigmas: Unleashing the Power of Artificial Intelligence in Analyzing Antibiotic-Resistant Pathogens and their Impact on Human Health
Authors: Yousif Maitham G.
Published: July 2023

In this research, medical information from 1200 patients across various hospitals in Iraq was collected over a period of 3 years, from February 3, 2018, to March 5, 2021. The study encompassed several infections, including urinary tract infections, wound infections, tonsillitis, prostatitis, endometritis, endometrial lining infections, burns infections, pneumonia, and bloodstream infections in children. Multiple bacterial pathogens were identified, and their resistance to various antibiotics was recorded. The data analysis revealed significant patterns of antibiotic resistance among the identified bacterial pathogens. Resistance was observed to several commonly used antibiotics, highlighting the emerging challenge of antimicrobial resistance in Iraq. These findings underscore the importance of implementing effective antimicrobial stewardship programs and infection control measures in healthcare settings to mitigate the spread of antibiotic-resistant infections and ensure optimal patient outcomes. This study contributes valuable insights into the prevalence and patterns of antibiotic resistance in microbial infections, which can guide healthcare practitioners and policymakers in formulating targeted interventions to combat the growing threat of antimicrobial resistance in Iraq's healthcare landscape.
The cause-effect relationship between sclerostin levels, cardiovascular biomarkers, risk factors, and cardiovascular disease
Authors: Prieto-Alhambra Daniel , Alcalde-Herraiz Marta , Xie Junqing , Newby Danielle , Prats Clara , Gill Dipender , Gordillo-Marañón María , Català Martí , Prats-Uribe Albert
Published: July 2023

Sclerostin inhibitors protect against osteoporotic fractures, but their cardiovascular safety remains unclear. We conducted a cis-Mendelian randomisation analysis to study the effect of sclerostin levels on cardiovascular risk factors. We meta-analysed three GWAS of sclerostin levels including 49,568 Europeans. Public GWAS were used for study outcomes, with findings validated using UK Biobank patient-level data including biomarkers. Lower sclerostin levels were associated with higher bone density and 75% reduction in hip fracture risk. However, reduced sclerostin led to 50-70% excess coronary artery disease risk, 30% to 80% increased risk of myocardial infarction, 50% to 70% increased risk of type 2 diabetes, and with worse cardiovascular biomarkers, including higher glucose, LDL cholesterol, apolipoprotein B and triglycerides, and decreased HDL cholesterol and lipoprotein A levels. We provide genetic evidence of a causal association between reduced levels of sclerostin and improved bone health and fracture protection, but increased cardiovascular events and risk factors.
Induction and Characterization of Mutations Related to Dwarf Habit in Hardy Hibiscus (Muenchhusia section)
Authors: Austin Conner C. , Tester Joshua M. , Webb James E. , Clark David G.
Published: July 2023

Hybrids between various species of Hibiscus in the Muenchhusia section are popular in commercial markets due to their colorful, floriferous blooms. However, many commercial cultivars are too vigorous for use in smaller garden spaces and often have only a few flowers in bloom. Stable, heritable mutants exhibiting dwarf stature and better branching architecture will be valuable to the commercial production of hardy Hibiscus. The goal of this project was to induce stable, heritable mutations using ethyl methanesulfonate that result in increased branching and a dwarf compact phenotype and introgress the compact phenotypes into lines of hardy Hibiscus to generate a series of diverse compact cultivars for use in commercial markets. Multiple mutations associated with dwarf, compact phenotypes were successfully induced. Hybridizations were made between M2 plants displaying a dwarf phenotype and hybrids developed through conventional breeding that do not possess the dwarf mutation in their background to develop diverse selections of dwarf plants. Inheritance patterns of the dwarf genes were determined through the segregation ratios of the dwarf phenotype in the F1 and F2 generations of these hybrids. Compared with wild-type progeny, dwarf progeny had shorter internode lengths and a greater number of primary branches.
A novel approach for planning of shipbuilding processes
Authors:   Faculty of Naval Architecture and Ocean Engineering, Istanbul Technical University, Gungor Aytek , Unsan Yalcin , Barlas Baris
Published: July 2023

Shipbuilding is acknowledged as an uncertain, complex, and unique industrial effort that yields massive products consisting of numerous parts and is vulnerable to unexpected events. The industry is also dominated by customer requirements through designs tailor-made for a specific ship. Planning in shipbuilding is therefore considered a formidable process. Consequently, many studies have been conducted to develop a planning framework for the industry to efficiently handle planning process. Yet none of these studies are deemed substantial enough to be regarded as holistic, straightforward, well-accepted, and compatible with the nature of shipbuilding. This study is therefore an important contribution by presenting a novel, hybrid, and integrated general-purpose planning framework applicable to all shipbuilding processes. The novel method exploits historical ship construction scheduling data, synthesizing hierarchical planning, dynamic scheduling, and discrete-event simulation, which is validated through an empirical study in this paper.
Pogled unazad
Authors: Antolović Michael , Sadžakov Slobodan
Published: July 2023

U radu se analizira provođenje »bolonjske reforme« visokog obrazovanja u Republici Srbiji tijekom prethodnih petnaest godina. Naglašavajući neoliberalizam kao ideološku osnovu reforme, autori su podvrgli kritičkoj raščlambi njezine normativne ciljeve i postignuća. Autori zaključuju da restrukturiranje sveučilišta na tržišnim načelima i njihovo pretvaranje u profitne organizacije vodi postepenom urušavanju osnovne funkcije modernog sveučilišta, oličene u traganju za istinom i proizvodnjom znanja. Nasuprot proklamiranom »društvu znanja«, reforma je dovela do snižavanja znanstvenih i obrazovnih standarda i zanemarivanja neposredno neprimjenjivih znanja što posve mijenja društveno vrednovanje znanja i znanosti te ima za posljedicu uspostavljanje »društva neznanja«.
Politika nastave književnosti na prijelazu iz SFR Jugoslavije u Republiku Hrvatsku
Authors: Ostojić Luka
Published: July 2023

Povijest lektire pokazuje nam kako su učenici dolazili u kontakt s književnim tekstovima te koje su ideje usvajali o čitanju, umjetnosti i vlastitim identitetima. Obrazovni sustavi ne teže nužno samo osobnom razvoju učenika nego im pokušavaju prenijeti određene političke vrijednosti i ideje. Sama nastava književnosti u tom je okviru sudjelovala u kreiranju ideja o nacionalnim i nadnacionalnim zajednicama kojima učenici nominalno pripadaju. Jugoslavenski sustav pritom je prenosio široko i kompleksno shvaćanje književnosti, no po cijenu pretjerane zasićenosti i zahtjevnosti programa. Hrvatski sustav postavio je mononacionalni pristup kao jedinu liniju proučavanja književnosti, a pritom je zadržao i zahtjevnost i krutost u obradi djela. Stoga je vjerojatno da se učenici ni u jednom sustavu nisu putem lektire povezali s kolektivnim identitetima i da su počeli zazirati od čitanja.
A Study on the Influence of 『Geogapilyong』 in the Yuan Dynasty of China on Joseon Yuseo: Focusing on Eumcheongryu of 『Jeongjoji』『Imwongyeongjeji』
Authors:   Association for International Tea Culture, Kang Sang-hee , Cho Heon-cheol , Choi Song-hyun , Yi Pyong-in
Published: July 2023

This study examines the Eumcheongryu of 『Geogapilyong(居家必用)』 in the Yuan Dynasty of China, which had the greatest influence on the establishment of Korean Eumcheongryu (飮淸類) culture. This study examined the relationship of influence on the records of sound streams in 『Sanlimgyungje(山林經濟)』, 『Jeungbosanlimgyungje(增補山林經濟)』 and 『Imwongyeonjeji(林園經濟志)』. This study, which was conducted as a literature research method, aims to contribute to the popularization and globalization of traditional beverages by identifying the identity of traditional beverages by identifying the origin and type of traditional beverages in Korea, and identifying the lineage and differentiation of traditional beverages. Through the study, it was confirmed that 『Geogapilyong』 had a significant influence on the documents of the Joseon Dynasty, and that the most types of traditional drinks were included in『Jeongjoji』. On the other hand, in order to spread and spread traditional beverages, it was confirmed that it is necessary not only to emphasize health and health, but also to inform modern people who are living fierce and harsh lives that they have spiritual benefits and values ​​that warm their hearts.
Impact of intellectual capital on earnings management and financial performance
Authors: Eleonora Hermando Gizela , Arni Rudiawarni Felizia , Sulistiawan Dedhy , Bukalska Elżbieta
Published: July 2023

Intellectual capital is widely recognized as one of the most important assets in modern businesses, but it is only reported in the financial statement in certain conditions. This study aims to evaluate the role of value-added intellectual capital (VAIC) in moderating the relationship between earnings management and financial performance. This research uses data from non-financial companies listed on the Singapore Exchange and Indonesia Stock Exchange covering the period of 2016–2021, with a total of 3,303 firm-year observations. VAIC is measured using Pulic’s intellectual capital model and earnings management using the Kasznik Model (1999). This study uses multiple linear regressions to examine the relationship between variables. The findings indicate that earnings management has no significant effect on the financial performance of Singapore, but it has a significant positive effect on the financial performance of Indonesia. Furthermore, this study discovers that intellectual capital moderates the relationship between earnings management and financial performance in both countries differently, that intellectual capital moderation is positive (negative) for the Singapore (Indonesia) sample. These findings suggest that the role of intellectual capital varies depending on stock exchanges; Singapore is considered a developed country in Southeast Asia, whilst Indonesia is considered a developing one. This study concludes that the role of intellectual capital in the relationship between earnings management and financial performance varies between market characteristics and across industries.
Factors Affecting the Success of an Organization: The Case of Zambian Breweries
Authors: Twambo Jubert
Published: July 2023

The main purpose of this study was to assess the factors that affect the success of an organisation. A questionnaire was the main method used to collect data. Respondents answered to a survey that was distributed using the Google Forms platform. The survey found that Zambian Breweries’ organizational structures enabled the management systems to efficiently run the company and boost production in order to help it reach its goals and objectives. Other systems that support the structure of the Zambian Breweries, make it possible to hire the right people for the right jobs and place them in the suitable required positions. The human resource policies and processes in place, the company was able to effectively carry out its strategic planning by having competent personnel and aligning their aptitudes, expertise, and talents to the needs of the Zambian Breweries. It was also found that the management’s successful upkeep of internal communication, the staff were able to understand the short- and long-term goals as well as the direction the company was pursuing. Additionally, effective communication enabled personnel to receive timely feedback, boosting morale and enabling high performance even under tough conditions. Keywords: Organizational Structure, Communication, Strategy, Strategic Management, Leadership.
Son Anadolu Selçuklu Meliki Taceddin Altunbaş’ın Amasya’daki Medresesi ve Türbesi
Authors: KOŞAN Doğan
Published: July 2023

Taceddin Medresesi ve Türbesi, Amasya Merkez’de yer almaktadır. Özgün inşa kitabesi ve sandukası mevcut değildir. Türbe üzerine konulan levhada Sultan Taceddin Altunbaş’ın medfun olduğu yazılıdır. Taceddin Altunbaş, son Anadolu Selçuklu Sultanı Gıyaseddin II. Mesud’un oğludur. Sultana ait vakfiyeden yola çıkarak Altunbaş’ın Simre hükümdarı olarak Amasya ve çevresinde hüküm sürdüğü anlaşılmaktadır. Sultan, 1356-57 yılında vefat edince mezarı Amasya’ya bağlı Havza Umurbey Köyü’ne gömülmüştür. Amasya’daki Taceddin Altunbaş Türbesi olarak bilinen yerin de ölümünden sonra sultan adına yapılmış olması muhtemeldir. Amasya’daki Taceddin Türbesi’nin duvarlarının bir kısmı özgün durumunu korumakla birlikte, uzun yıllar iş yerlerinin arasında saklı kalmıştır. Bu yüzden tarihî kaynaklarda türbe ile ilgili araştırmalar kısıtlıdır. Kare planlı kaide (cenazelik) üzerine sekizgen gövdeden oluşmaktadır. Düzgün kaplama taşları, oval köşe silmeleri ve zencirek motifleri ile 13. yüzyıl Selçuklu türbe mimarisinin özelliklerini taşımaktadır. Türbeye bitişik olan Taceddin Medresesi ise 1989 yılında yapılan araştırma kazısında kısmi olarak açığa çıkarılmıştır. Taceddin Türbesi, yakınında (90 metre) bulunan Cumudar Türbesi’ne (1242) malzeme, süsleme ve plan özellikleri bakımından büyük benzerlik göstermektedir. Bu iki türbeyi yaptıranların aynı kişiler olduğu ya da aralarında akrabalık ilişkilerinin olduğu söylenebilir. Gümüşlüzade Türbesi’nin yeri günümüzde bilinmediğinden, bu benzerliklerden ve “Gümüşlüzade Cami” ile olan yakınlığından (150 metre) dolayı mevcut türbenin Mahmut Çelebi’ye ait olabileceği ihtimali de bulunmaktadır.
Indie Albüm Kapakları ve Afişlerinin Göstergebilim Açısından İncelemesi ve Örnek Tasarım Uygulaması
Authors: TAŞ Yasemin , GÜVENİLİR Taylan
Published: July 2023

Dünya tarihinde insan ve sanat birlikte şekillenmiştir. Varlığını anlamlandırmak isteyen insan doğayı izlemiş, dinlemiş ve bu deneyimlerini başkalarına aktarmıştır. Bu aktarımların en kadim olanı sestir. Yazının icadına kadar olan geniş bir tarih süresince âdetler, kültür ve hatta bilgi nesilden nesile sadece ses yoluyla aktarılmıştır. İnsan sese varoluşundan bu yana anlamlar yükleyerek hayatın her alanına katmıştır. İnsan geliştikçe ses bilgisi de şekillenmiş ve onu kaydederek diğer insanlara aktarmaya başlamıştır. Böylelikle müzik plakları, kasetler, CD’ler doğmuştur. İşte bu noktada varlığını tarihi boyunca sanatla şekillendiren insan tasarımdan faydalanmaya başlamıştır. En eski basılı müzik kayıtlarından en son dijital sürümlere kadar kapak tasarımı müziğin nasıl algılandığı, pazarlandığı ve tüketildiği konusunda çok önemli bir rol oynamıştır. Tasarım müziğin içerisinde yer almasa da müziği geliştirip tüm dünyada görünür hâle getirmiştir. Bu araştırmada Indie müziğin ortaya çıkardığı grafik anlatımların içerdiği imgelerin, müzik gruplarına ait olan albüm kapak tasarımları ve afiş tasarımları baz alınarak göstergebilim açısından incelemeleri aracılığıyla tasarımlarda kullanılan göstergelerin çözümlemesi amaçlanmıştır. Bu amaca dönük sanatçılar amaçsal örneklem seçim tekniği ile seçilmiştir. İlk olarak tasarım kavramı ele alınmış, daha sonra da Indie müzik kültürünün oluşumu, tarihi ve müziğine yer verilmiştir. Indie müziğin insanların üzerindeki etkisi ve etkilendiği sanat akımlarıyla tasarım süreci incelenmiştir. Son olarak bu incelemeler doğrultusunda kurgusal bir Indie müzik grubu oluşturularak albüm kapağı ve konser afişi tasarlanmıştır.
Geri Dönüşüm Çalışmalarında Kriterlerin Birbirlerine Olan Etkisini Belirlemede DEMATEL Metodu
Authors: OKUMUŞ Nuh , DİNERİ Eda
Published: July 2023

Sıfır atık ve geri dönüşüm, günümüzde giderek daha fazla önem kazanan konular hâline gelmiştir. Bu konular, kaynakların korunması ve çevrenin daha sürdürülebilir bir hâle getirilmesi açısından büyük önem taşımaktadır. Sıfır atık ve geri dönüşüm, doğal kaynakların korunmasına yardımcı olur. Bu sayede, doğal kaynaklar daha uzun süre kullanılabilir hâle gelir. Sıfır atık ve geri dönüşüm, atık miktarının azaltılmasına yardımcı olur. Bu sayede, atıkların çevreye verdiği zararlar azalır. Geri dönüştürülen malzemeler, yeniden üretmek için gereken enerjinin azaltılmasına yardımcı olur. Bu çalışmada geri dönüşüm miktarlarının sınıflandırılmasında kullanılan Nüfus, Sanayi, Sağlık Kuruluşları, Termik Santral-Maden kriterlerinin geri dönüşüm uygulamalarında birbirlerine olan etkileri DEMATEL karar verme metodu kullanılarak incelendi. Bir durumu etkileyen kriterlerin birbiri üzerine olan etkilerini araştırma en uygun olan ve yoğun bir şekilde kullanılan DEMATEL karar verme metodundan faydalanarak Nüfus kriterinin diğer kriterlerle en çok ilişkili olan kriter olduğu elde edildi. Ayrıca, Termik Santral-Maden kriterinin diğer kriterlerle en az ilişkili olan kriter olduğu gözlemlendi. Bunun yanı sıra Termik Santral-Maden kriterinin diğer kriterler üzerinde en fazla etkiye sahip olduğu ve Nüfus kriterinin geri dönüşümde diğer kriterlerden en fazla etkilenen olduğu ortaya çıktı. Bu inceleme sonucunda atık madde miktarı fazla olan sınıflandırma kriterinin diğer kriterler üzerine etkisinin en az olabileceği veya diğer kriterlerden en fazla etkilenebileceği elde edildi.
Effects of Pectinase Treatment on the Optimization and Extraction of Pigments from Bacupari, Tucumã, and Peach Palm Using Response Surface Methodology
Authors: Miranda Pedro , Morais Rômulo , Sousa Hermanny , Gualberto Larissa , Freitas Barbara , Asquieri Eduardo , Martins Glêndara , Boas Eduardo , Damiani Clarissa
Published: July 2023

This work aims to optimize the process of extracting pigments from the peel of Amazonian fruits (bacupari, peach palm, and tucumã) using the enzyme pectinase. First, pigment extraction was carried out using different solvents (ethanol and acetone 80%, ethanol and acetone 50%, and water), temperatures (44, 40, 35, and 26 °C), and wavelengths (400, 450, and 490 nm). In the second stage, the best parameters found in the first stage were applied in a statistic with a response surface varying time (60, 120, and 180 min) and enzyme concentration (40, 80, and 120 U). The best results for extraction for bacupari and peach palm were acetone at 50% and 45 °C and ethanol at 50% and 35 °C for tucumã. In the second stage, the optimum point found was 1.5 h and 100 U concentration, and 2.5 h and 90 U concentration resulted in better extractions for bacupari, peach palm, and tucumã.
Cu/Zn Oksit İkili Katalizörü Üretmek Amacıyla Malahit Cevherinin NH3/NH4NO3 Liçinde Optimum pH ve NH3 Derişiminin Yanıt Yüzey Yöntemiyle Belirlenmesi
Authors: BAKIRCI KARACAHAN Zümra , DEMİRKIRAN Nizamettin , BAYSAR Ahmet
Published: July 2023

Bu çalışmada, bir hidrosikarbonat minerali olan malahit ve bir karbonatlı mineral olan simitsonit içeren bakır cevherinin hidrometalurjik yöntemle işlenmesi neticesinde Cu/Zn oksit ikili katalizörü üretilmiştir. Cevherden maksimum oranda bakır ve minimum oranda çinkonun liç çözeltisine geçmesini sağlayacak ancak cevherde bulunan diğer metallerin çözünmesini engelleyecek pH ve çözücü derişiminin optimum değerleri yanıt yüzey yöntemi ile belirlenmiştir. Yanıt yüzey yönteminde elde edilen deneysel bulgulara çoklu regresyon analizi yapılarak bakır ve çinko liç verimleri ile bağımsız değişkenler arasındaki ilişkiyi gösteren ikinci dereceden model denklemler elde edilmiştir. Bakır ve çinko liç verimi üzerine NH3 derişiminin pH’dan daha etkili bir parametre olduğu belirlenmiştir. NH3 ve NH4NO3 derişimleri ile pH için optimum değerler sırasıyla 0,38 M, 0,11 M ve 9,80 olarak bulunmuştur. Optimum koşullarda cevherdeki bakırın %82,3’ünün çinkonun ise %45,1’inin çözeltiye geçtiği belirlenmiştir. Liç sonucunda elde edilen çözeltideki Cu+2 ve Zn+2 iyonları Na2CO3 çözeltisi ile çöktürülmüş ve oluşan katı ürün 350 °C’de 6 saat süreyle kalsine edilerek Cu/Zn oksit ikili katalizörü üretilmiştir. Katalizörün ağırlıkça bakır oksit içeriği yaklaşık %44 ve çinko oksit içeriği %56 olarak tespit edilmiştir.
A Novel Frequency-Configurable Patch Antenna Design Using Flexible Substrates for Biomedical Applications
Authors: AVŞAR AYDIN Emine , BİÇER Mustafa Berkan
Published: July 2023

The purpose of this research was to design and implement a flexible horizontal H-shaped microstrip antenna (flexible-HHMA) using various materials for cancer tumor detection. Microstrip antennas, which can also be utilized as tumor detection sensors and can function as both a receiver and a transmitter, are composed of two major components: the patch and the ground plane. The copper tape was used to analyze various materials’ impacts on antenna performance to form the patch and ground planes, and felt, jean, and photo paper was employed as the substrate. To accomplish this, antennas operating at frequencies ranging from 2 to 10 GHz, frequently used in biomedical applications, were constructed and computations performed using a full wave electromagnetic solver based on finite integration technique (FIT). The proposed microstrip antennas may be used as sensors in biomedical measurement systems that make use of the dielectric contrast between the healthy and malignant tissues at microwave frequencies.
Economically the Sivas Basin Natural Anhydrite Potential, Reserve Estimation and Geochemical Characteristics, Central Anatolia, Türkiye
Authors: DURAN Zekeriya , CANBAZ Oktay
Published: July 2023

This study focuses on the economization of natural anhydrite, which has a wide range of uses and is environmentally friendly, in Türkiye. Anhydrite, which is one of the most common evaporitic minerals in the world, has almost no usage area in Türkiye. Evaporite deposits consisting of gypsum, anhydrite, halite, bassanite and selenite are prominent in the country, especially in Tertiary period sedimentary basins. The Sivas basin is one of these important Tertiary basins. Mining operates in the basin are carried out only on gypsum and anhydrite is not utilized. This study is carried out on the geological and geochemical characteristics of anhydrite, which is prominent with its usage areas in the world, its potential in the basin and its economic importance. The geochemical and mineralogical analyses are carried out on anhydrite samples taken from the basin. Anhydrite formations up to 300 meters in thickness are detected in the evaporite deposits that outcrop in most of the basin. In addition, a block model is extracted from the drilling data of a mining company operating in the basin and the reserve is calculated. As a result, it is concluded that the Sivas basin has a high potential in terms of anhydrite and should be brought to the national economy.
Yanıt Yüzey Metodu Analizi: Alkali Elektroliz ile Hidrojen Gazı Üretimi
Authors: ÖZGÜR Ceyla , MERT Mehmet Erman
Published: July 2023

Bu çalışmada alkali elektroliz hücresi ile hidrojen gazı üretimi için laboratuvar ölçekli, iki elektrotlu bir sistem kurulmuştur. Anot olarak soy metal olan platin kullanılırken, katot olarak nikel köpük elektrotlar galvanostatik yöntemle nikel-bakır-molibden (NiCuMo) ile modifiye edilmiştir. Sisteme faklı uygulama potansiyelleri (2,4 V; 2,7 V ve 3 V) uygulanmış ve farklı süreler için elde edilen hidrojen gazı hacimleri belirlenmiştir. Deneysel bulgulara göre 30 dakikalık elektroliz işlemi sonrasında artan uygulama potansiyellerine göre sırasıyla; 77,30; 90,67 ve 105,08 mL hidrojen gazı üretilmiştir. Söz konusu sistemin optimizasyonu için yanıt yüzey metodu analizi (RSM) kullanılmıştır. Sistem etkinlik analizinde elektroliz potansiyeli ve süre değişken olarak seçilerek hidrojen gazı üretim hacmine ve yük miktarına etkileri araştırılmıştır. Hidrojen hacmi ve yük miktarı için tahmini R2 değerleri sırasıyla 0,9956 ve 0,9955 olarak belirlenmiştir. Hidrojen gazı hacim ve yük değerleri için %Hata sırasıyla 2,71 ve 0,5‘dir.
Performance Analysis of Zhao and Durbin Numerical Inversion Methods of Laplace Transform
Authors: YILDIRIM Sefa
Published: July 2023

The Laplace transform is essential to satisfy the independence of time for the analysis of the transient response of the composite or functionally-graded materials. The time independent boundary value problem may be solved then either by numerically or analytically. The solutions should be inverted to the physical plane using inverse Laplace transform. Therefore, the selected numerical inversion method may be crucial to obtain the high accuracy throughout the whole analysis steps. In the present study, Zhao’s Method I, Zhao’s Method II, Durbin’s Method and Modified Durbin’s Method are applied to dynamic loading conditions. The analysis results show that the accurate and stable solutions even for long time inversion have been obtained by Modified Durbin’s Method and Zhao’s Methods. However, compared with the methods of Zhao’s, the computational and programing load of Durbin’s Methods are minimum.
Çapraz Satışı Destekleyebilecek Transformer ile Geliştirilmiş Bir Öneri Sistemi
Authors: KALKAN İbrahim Erdem , ŞAHİN Cenk
Published: July 2023

Öneri sistemlerinin, perakende sektöründe çapraz satış bağlamında bir ürün grubunu satış için hedeflemek veya hangi müşterilerin diğerlerine göre daha pazarlanabilir olduğunu tahmin edebilen yeteneklere sahip olduğu düşünülmektedir. Bu sayede mevcut müşterilerin bir sonraki seferde hangi ürün veya hizmeti satın alacaklarına ilişkin bir tahmin oluşturularak çapraz satış etkinliği arttırılabilecektir. Bu araştırmada temel amaç, çevrimiçi alışveriş endüstrisine, çapraz satış olanaklarını arttırabilmek bağlamında, belirli bir ürün ya da ürün grubu için, belli bir satın alma tarihçesi bulunan müşterilerinden hangilerinin diğerlerine göre daha uygun olduğunu tahmin etmek için bir öneri sistemi geliştirip sunmaktır. Bu kapsamda transformer kullanılarak probleme adapte edilmiş öneri sisteminin karşılaştırmalı bir çalışması yapılmış ve elde edilen sonuçlara göre önceki çalışmalarda sunulan modellere göre daha başarılı olduğu gözlenmiştir.
Body Temperature Related Risk Factor Assessment Using RFID Sensor Tags
Authors: YILMAZ Reyat , TAMER Özgür , KUT Recep Alp , FİDAN Nihal
Published: July 2023

Detecting and identifying individuals with high body temperature can be critical for preventing the spread of diseases with high body temperature as a symptom like COVID-19. Thermal cameras or manual temperature inspection methods are widely used to identify elevated body temperature. In this work, we propose a novel method to identify and track people with higher disease risk, including the body temperature change of each person in a specified community and other risk factors like family backgrounds, habits, and social life. Results show that each person's body temperature can be tracked and recorded with the user’s ID number every time the user passes from specific locations equipped with RFID readers. By using an artificial intelligence-supported risk scoring system, a risk factor is evaluated based on the parameters defined accordingly. If the evaluated risk score of the user is above a specific value, the system generates an alarm to isolate the person with a high-risk score. Therefore, isolating any potentially infected individual helps health professionals reduce the spreading speed of infections through isolated communities.
Honey Badger Optimizasyon Algoritması ile Üç Elemanlı Kafes Sisteminin Ağırlık ve Maliyet Minimizasyonu
Authors: ASLAN Cengiz , SEYYARER Ebubekir , UÇKAN Taner
Published: July 2023

Meta-sezgisel optimizasyon yöntemleri geleneksel algoritmalarla çözümün çok maliyetli olacağı büyük ölçekli gerçek hayat problemleri için başarılı sonuçlar sergilemekte ve birçok alandan araştırmacının ilgi odağı haline gelmektedir. Bu alana duyulan ilgi sayesinde genetik, fizik, biyoloji, müzik gibi ilhamını çeşitli kaynaklardan alan araştırmacılar, yeni meta-sezgisel algoritmalar oluşturmaya devam etmektedir. Şubat 2022’de yayımlanan Bal Porsuğu Algoritması (Honey Badger Algorithm, HBA), ilhamını bal porsuğunun yiyecek arama stratejilerine dayandırmaktadır. Bu çalışmada HBA’nın yanı sıra alan yazının başarısı kanıtlanmış algoritmalarından olan Genetik Algoritma (Genetik Algorithm, GA), Parçacık Sürü (Partical Swarm Optimization, PSO), Yapay Arı Kolonisi (Artificial Bee Colony, ABC), Karınca Kolonisi (Ant Colony Optimization, ACO), Benzetimli Tavlama (Simulated Annealing, SA) algoritmaları, bir yapı problemi olan “üç elemanlı kafes sisteminin ağırlık ve maliyet minimizasyonu” na uygulanmaktadır. Elde edilen sonuçlara göre HBA’ nın, GA, ABC, ACO, SA algoritmalarına kıyasla daha iyi yakınsama hızına ve değerlere ulaştığı gözlemlenmektedir.
Naturaleza jurídica de la obligación de seguridad laboral frente al problema de la objetivación jurisprudencial de la responsabilidad civil del empleador por accidentes del trabajo: una interpretación como obligación de medios
Authors: Venegas Fierro Katiusca Andrea
Published: July 2023

El presente artículo pretende abordar la naturaleza y contenido del deber de seguridad contenido en el artículo 184 del Código del Trabajo. En el artículo se argumentará que el artículo configura una obligación de medios y, por consiguiente, corresponde al empleador responder de culpa leve, debiendo adoptar las medidas razonables de cuidado y prevención de accidentes.
Influence of the working surface roughness of the pulsed X-ray radiation galvanic sensor on its performance
Authors: Barykov I. A.  , Butashin A. V.  , Zaitsev V. I.  , Muslimov A. E.  , Tarakanov I. A.  , Ismailov A. M.  , Fedorov V. A.  , Kanevsky V. M.
Published: July 2023

A new design of a galvanic sensor of pulsed X-ray radiation is proposed, which is a flat electric capacitor with a window in one metal lining and a solid dielectric made of a single-crystal sapphire with a thickness of 200-300 μm inside. The influence of the surface roughness of the sapphire in the window area on the galvanic linear sensor of X-ray radiation has been established. Tests have shown that, with ultra-smooth polishing of the sapphire plate working surface in the window area to a roughness of Rq≤ 0.2 nm, it is possible to provide the galvanic linear detection of X-rays with an energy in the range of 0.1-1 keV and power density of 1-2 MW· cm-2 with a sensor response time of about 8 ns. Sensors of this type can be used in studies of inertial nuclear fusion processes. Keywords: X-ray radiation, galvanic sensor, sapphire, dielectric, flat capacitor.
Ionization mechanism of beam plasma generated by an electron beam in medium vacuum
Authors: Tyunkov A. V.  , Andronov A. A.  , Yushkov Yu. G.  , Zolotukhin D. B.
Published: July 2023

We present the results of the measurements of the ionic composition of plasma generated by an accelerated electron beam at medium vacuum (fore-vacuum) pressures. Calculations of the contribution of plasma electrons and beam electrons to the mechanism of ionization are presented. Comparison of the calculated with the experimental data led us to the conclusion about the dominating contribution of beam electrons and to the ionization process. Keywords: beam plasma, fore-vacuum, electron beam, plasma-cathode electron source.
Viscoelastic properties of carbon plastics based on powdered polyimide binders
Authors: Vaganov G. V.  , Didenko A. L.  , Myagkova L. A.  , Elohovsky V. Yu.  , Popova E. N.  , Yudin V. Yu.
Published: July 2023

Carbon fiber reinforced plastics based on thermoplastic partially crystalline fusible polyimide R-BAPB and oligoimide IDA (diacetyl imide) have been obtained. The thermal, thermomechanical and mechanical properties of carbon plastics based on polyimides have been studied. It has been shown that carbon plastics based on the used polyimide binders have increased crack resistance, which makes it possible to operate them at temperatures up to ~ 400oC Keywords: carbon fiber reinforced plastic, polyimide binder, electrostatic spraying, interlaminar fracture toughness.
Effect of spraying the acetylsalicylic acid and citric acid on some physical and chemical characteristics of date palm two cultivars Halawi and Sayer
Authors: Shanan Auda Murtadha , Yousef Lafta Hzaa Ahmed
Published: July 2023

This study was conducted in an orchard in Basra Governorate during the 2020 growing season, with the aim of the effect of spraying the antioxidants acetylsalicylic acid and citric acid on some physical and chemical characteristics of two date palm cultivars Phoenix dactylifera L. (Halawi and Sayer) in improving the chemical and physical properties of the fruits. The experiment included five-factor treatments, which are the comparison treatment and two concentrations of citric acid 150, 300 mg.L-1 and two concentrations of acetylsalicylic acid 500 and 1000 mg.L-1, the floral spikes were sprayed twice, the first spraying a month after pollination and the second spray 15 days after the first spray. The results demonstrated that spraying with two acids led to a significant increase in all studied traits, sprayed with salicylic acetylcholine at a concentration of 1000 mg. mg.L-1 and spraying with citric acid 300 mg. mg.L-1 significant increase in yield, while spraying with distilled water gave the lowest value for the studied traits, the binary interaction between acetylsalicylic acid at a concentration of 1000 mg.L-1 and Halawi cultivar significantly outperformed in all the traits included in the study. Keywords: Acetyl, citric acid, date palm, Halawi, Sayer.
Applications of Natural Language Processing for the Management of Stroke Disorders: Scoping Review
Authors: De Rosario Helios , Pitarch-Corresa Salvador , Pedrosa Ignacio , Vidal-Pedrós Marina , de Otto-López Beatriz , García-Mieres Helena , Álvarez-Rodríguez Lydia
Published: July 2023

Background

Recent advances in natural language processing (NLP) have heightened the interest of the medical community in its application to health care in general, in particular to stroke, a medical emergency of great impact. In this rapidly evolving context, it is necessary to learn and understand the experience already accumulated by the medical and scientific community.

Objective

The aim of this scoping review was to explore the studies conducted in the last 10 years using NLP to assist the management of stroke emergencies so as to gain insight on the state of the art, its main contexts of application, and the software tools that are used.

Methods

Data were extracted from Scopus and Medline through PubMed, using the keywords “natural language processing” and “stroke.” Primary research questions were related to the phases, contexts, and types of textual data used in the studies. Secondary research questions were related to the numerical and statistical methods and the software used to process the data. The extracted data were structured in tables and their relative frequencies were calculated. The relationships between categories were analyzed through multiple correspondence analysis.

Results

Twenty-nine papers were included in the review, with the majority being cohort studies of ischemic stroke published in the last 2 years. The majority of papers focused on the use of NLP to assist in the diagnostic phase, followed by the outcome prognosis, using text data from diagnostic reports and in many cases annotations on medical images. The most frequent approach was based on general machine learning techniques applied to the results of relatively simple NLP methods with the support of ontologies and standard vocabularies. Although smaller in number, there has been an increasing body of studies using deep learning techniques on numerical and vectorized representations of the texts obtained with more sophisticated NLP tools.

Conclusions

Studies focused on NLP applied to stroke show specific trends that can be compared to the more general application of artificial intelligence to stroke. The purpose of using NLP is often to improve processes in a clinical context rather than to assist in the rehabilitation process. The state of the art in NLP is represented by deep learning architectures, among which Bidirectional Encoder Representations from Transformers has been found to be especially widely used in the medical field in general, and for stroke in particular, with an increasing focus on the processing of annotations on medical images.
Number of Storms in Several Russian Seas: Trends and Connection to Large-Scale Atmospheric Indices
Authors: Myslenkov Stanislav , Kruglova Elizaveta , Medvedeva Alisa , Silvestrova Ksenia , Arkhipkin Viktor , Akpinar Adem , Dobrolyubov Sergey
Published: July 2023

Changes in the recurrence of extreme wind waves in the World Ocean are connected with the global climate change. The end of the 20th and the beginning of the 21st centuries are characterized by significant climate warming, the reduction of the Arctic sea ice and changes in the recurrence of various extreme meteorological events. The main motivation of this research is to assess the trends of storm recurrence for the time period from 1979 up to 2020 and to analyze the connection between storminess and large-scale atmospheric circulation indexes. This research contains information about the number of storms that occurred in seven Russian Seas, including the Black, Caspian, Barents, Kara, Bering Seas, the Sea of Okhotsk and the Sea of Japan/East Sea. These seas are located in different climate conditions determined by the Atlantic, Pacific and Arctic oceans. The analysis of wave climate and storm activity is based on the results of wave modelling by WAVEWATCH III with input NCEP/CFSR wind and ice data. The mean plots, maximum, and 95% percentile sig-nificant wave heights are also presented in the research. Significant linear uptrends in the number of storms were found in the Kara, Caspian, Bering, Okhotsk Seas, and in the Sea of Japan. The relationship between the inter-annual variability of the number of storms and large-scale at-mospheric indexes is considered.
Análise de classes latentes: preferências por leite UHT com distintos selos de qualidade
Authors: Groot Etiénne
Published: July 2023

O objetivo desta pesquisa foi estudar a heterogeneidade das preferências dos consumidores em Dracena/SP por selos de qualidade do leite “Ultra High Temperature” (UHT): SENAF da Agricultura Familiar, SENAF Quilombos do Brasil, Produto Orgânico Brasil e “Fairtrade”; e por parcelas de comercialização recebidas pelos produtores rurais, através da análise de classes latentes (ACL). Por conta do baixo nível de conhecimento da população sobre estes atributos, a pesquisa avaliou o impacto das informações sobre os selos de qualidade e parcelas de comercialização nas escolhas dos consumidores. Desta forma, realizaram-se entrevistas a pessoas em locais públicos da cidade, de abril a junho de 2018. Os consumidores expressaram suas preferências através de um experimento de escolha discreta de melhor-pior (EEDMP) do caso 3 ou multiperfil, e os dados foram analisados pelo análise de classes latentes. No total, 257 consumidores participaram do estudo. Os resultados mostraram que existiam dois segmentos de mercado, tanto antes como depois dos consumidores receberem informações sobre os selos de qualidade e parcelas de comercialização. As informações não tiveram influência significativa nas preferências de 140 consumidores (54,47%), porém 81 consumidores (31,51%) passaram a valorizar mais os selos SENAF Quilombos do Brasil e “Fairtrade”, e 35 consumidores (13,61%) passaram a ter mais satisfação com a certificação do SENAF e se tornaram menos sensíveis aos preços de varejo do leite UHT.
Politicians, Pundits, and Platform Migration: A Comparison of Political Polarization on Parler and Twitter
Authors:   University of Wisconsin-Madison, Matthews Abigial , Otala Jacqueline M. ,   Clarkson University, Wali Esma ,   Clarkson University, Kurtic Gillian ,   Clarkson University, Millington Lynden ,   Clarkson University, Simpson Michael ,   Clarkson University, Matthews Jeanna ,   Clarkson University, Madraki Golshan ,   Clarkson University
Published: July 2023

Parler, a self-proclaimed free speech social media platform founded in 2018, attracted a large influx of new members in 2020 as the result of a highly visible platform migration campaign. Parler usage was linked to the planning of the Jan. 6, 2021 attack on the United States Capitol building, leading to a shutdown of the Parler platform. Parler, which is now back online, offers an important lens through which to examine the broader attempts at platform migration in response to changing content moderation and platform governance policies and their impact on political polarization. We begin by examining the network connections between US Congressional Representatives on both Twitter and Parler. We find that Parler has a homogenous population of users, consisting of a single isolated group, where polarization seems irrelevant, while Twitter demonstrates two clearly polarized groups. We compare how politicians and political pundits use Parler differently. Finally, we examine the evolution of Parler including comparing Parler’s own policies before and after the shutdown and reflecting on the future of platforms like Parler and similar platform migration experiments.
Prácticas de consumo de los videojuegos en los estudiantes de educación secundaria
Authors: Díaz Pinzón Jorge Enrique
Published: July 2023

Para establecer el grado de correlación entre los hábitos de consumo de los videojuegos y el género de los estudiantes, se aplicó una encuesta de reactivos cerrados a una muestra de 330 estudiantes de la Institución Educativa General Santander del municipio de Soacha, Cundinamarca. Se analizaron cinco preguntas de la encuesta relacionadas con los hábitos de consumo de los videojuegos; se plantearon cinco hipótesis de investigación, las cuales se contrastaron usando el estadístico chi-cuadrado. También se calcularon los coeficientes de correlación de Pearson para las variables en estudio. El análisis correlacional concerniente con el género de los estudiantes indicó que existe una relación entre este con los hábitos de consumo de los videojuegos. Además, se evidenció en gran parte una significativa correlación entre las variables estudiadas. Se concluyó que los hombres adolescentes destinan más tiempo a los videojuegos que las mujeres.