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The novel optical solitons with complex Ginzburg–Landau equation for parabolic nonlinear form using the ϕ6-model expansion approach
No full textThis work investigates the complex Ginzburg–Landau equation (CGLE) with parabolic law in nonlinear optics, this form of nonlinearity may also be seen in fiber optics. It is referred to as the fifth-order susceptibility, which is predominantly present in a transparent glass with intense femtosecond pulses at 620nmI. The ?6-model expansion approach is used to find dark, singular, periodic, and combined optical soliton solutions to the model. The results presented in this study are intended to improve the CGLE’s nonlinear dynamical characteristics. These solitons are significant resources in physics and telecommunications engineering. They led to several quick follow-up investigations. The hyperbolic sine, for example, appears in the calculation of the Roche limit and gravitational potential of a cylinder, while the hyperbolic cotangent appears in the Langevin function for magnetic polarization. Some of the obtained solutions’ 2-, 3-dimensional, and contour plots are shown
Evli çalışan kadınlar ile evli çalışmayan kadınların evlilik uyumunun incelenmesi
Get PDFSosyal Bilimler Enstitüsü, Aile Danışmanlığı ve Eğitimi Ana Bilim Dalı, Aile Danışmanlığı ve Eğitimi Bilim DalıÇalışan ve çalışmayan evli kadınların evlilik uyumlarını incelemeyi amaçlayan bu çalışmada 63 çalışan ve 99 çalışmayan olmak üzere 162 evli kadın yer almaktadır. Araştırma verilerinin elde edilmesinde nicel araştırma yöntemlerinden anket yöntemi kullanılarak katılımcıların evlilik ilişkilerindeki uyumunu belirlemek amacıyla Evlilik Uyumu Ölçeği kullanılmıştır. Çalışan evli kadınların %55,6'sı 24-35 yaş ve çalışmayan kadınların %58,6'sı 36 yaş ve üzerindedir. Çalışan kadınların %58,7'si lisans veya altı eğitim düzeyinde iken çalışmayan kadınların oranı %90,9'u lisans veya altı eğitim düzeyindedir. Çalışan evli kadınların %15,9'u mimar, %12,7'si öğretmen ve 9,5'i insan kaynakları uzmanıdır. Çalışan kadınların evlilik yaşları %76,2 ile 25 yaş ve üzeri iken çalışmayan kadınların evlilik yaşları %57,6 ile 18-24 yaş arasındadır. Çalışan kadınların %39,7'i 2 çocuğa sahipken çalışmayan evli kadınların %48,5'i 2 çocuk sahiptir. Eşleri ile sorumluluklarını paylaşan çalışan kadınların oranı %88,9 iken çalışmayan kadınlarda bu oran %90,9'dur. Araştırmadan elde edilen bulgulara göre çalışan ve çalışmayan kadınların evlilik uyumlarının farklılık göstermediği saptanmıştır. Fakat eşleri ile sorumluluklarını paylaşan çalışan ve çalışmayan kadınlarda evlilik uyumlarının eşleri ile sorumluluklarını paylaşmayanlara göre daha yüksek olduğu tespit edilmiştir. Fakat hem çalışan ve hem de çalışmayan kadınlarda yaş, eşin yaşı, eğitim düzeyi, eşin eğitim düzeyi, evlilik süresi, evlilik yılı ve çocuk sayısına göre evlilik uyumlarının farklılaşmadığı görülmüştür. Anahtar kelimeler: çalışan kadın, çalışmayan kadın, evli kadın, evlilik uyumuIn this study, which aims to examine the marital adjustment of working and non-working married women, there are 162 married women, 63 of whom are working and 99 are non-working. In order to obtain the research data, the Marriage Adjustment Scale was used to determine the compatibility of the participants in their marital relations by using the survey method, which is one of the quantitative research methods. 55.6% of working married women are aged 24-35 and 58.6% of non-working women are 36 years and older. While 58.7% of working women are at undergraduate or below education level, 90.9% of non-working women are at undergraduate or below education level. Of working married women, 15.9% are architects, 12.7% are teachers and 9.5 are human resources specialists. While the marriage age of working women is 76.2%, 25 years and over, the marriage age of non-working women is between 18-24 years, with 57.6%. While 39.7% of working women have 2 children, 48.5% of non-working married women have 2 children. While the rate of working women who share their responsibilities with their spouses is 88.9%, this rate is 90.9% for non-working women. According to the findings obtained from the research, it was determined that the marital adjustment of working and non-working women did not differ. However, it has been determined that working and non-working women who share their responsibilities with their spouses have higher marital adjustment than those who do not share their responsibilities with their spouses. However, in both working and non-working women, it was observed that marital adjustment did not differ according to age, spouse's age, education level, spouse's education level, duration of marriage, year of marriage and number of children. Keywords: working woman, non-working woman, married woman, marital adjustmen
Does geopolitics trigger energy inflation in the European economic area? Evidence from a panel time-varying regression
No full textPurpose – This paper aims to examine the reaction of energy inflation to geopolitical risks in the European Economic Area between 1990 and 2015. Design/methodology/approach – This study applies the nonparametric time-varying coefficient panel data model with fixed effects. In addition, to further reveal potential tail effects that may not have been captured by conditional mean-based regressions, the method of moments quantile regression was also used. Findings – The findings of this study are as follows: first, as European countries get exposed to geopolitical tensions, it is expected that energy prices will surge. Second, the ability of geopolitical risk to trigger energy inflation in recent times is not as powerful as it used to be. Third, countries with a lower inflation rate, when exposed to geopolitical risks, experience smaller increases in energy inflation compared to countries with a higher inflation rate. Research limitations/implications – The findings of this study lead us to the conclusion that transitioning from nonrenewable to renewable energy use is one channel through which the sampled countries can battle the energy inflation, which geopolitical risks trigger. A sound macroeconomic policy for inflation control is a complementary channel through which the same goal can be achieved. Originality/value – Given the increasing level of energy inflation and geopolitical risks in the world today, this study is an attempt to reveal the time-varying characteristics of the relationship between these variables in European countries using a nonparametric time-varying coefficient panel data model and method of moments quantile regression with fixed effect
The making-or-breaking of material and resource efficiency in the Nordics
No full textThe relevance of efficient direct material input through both export market and domestic material sources offers useful material and resource productivity guidelines from both economic and environmental sustainability dimensions. In the current context, the drivers of material and resource efficiency in the Nordic region are examined by utilizing requisite empirical approaches over the period 1995–2020. The investigation revealed that economic activities which are characterized by Gross domestic product (GDP) alongside the growth of urban population and utilization of oil energy are all detrimental to the region’s resource efficiency. It implies that material utilization efficiency cannot be optimized with the current trend of the region’s GDP, urban population growth and the use of dirty energy. Contrarily, the findings, further revealed that alternative energy utilization vis-` a-vis renewables are key indicators to spur material and resource efficiency in the region, thus throwing more support for the region’s unavoidable energy transition goal. These highlighted results alongside the Granger causality inference offer sustainable development measures that are specifically motivated through the improvement of efficient and optimization of output
Uluslararası ticarette altın ticareti
Get PDFDış Ticaret Enstitüsü, Uluslararası Ticaret Ana Bilim Dalı, Uluslararası Ticaret Bilim DalıAltın ticaretinin uluslararası ticarette büyük önemi vardır ve finansal sistemleri şekillendirerek çeşitli endüstrileri etkiler. Bu araştırma, altın ticaretinin çok yönlü boyutlarına derinlemesine bir bakış sunarak, tarihî gelişmelerini, üretim süreçlerini ve sektörler arasındaki çeşitli uygulamalarını keşfeder. Çalışma, Londra Piyasası, ABD Vadeli İşlemler Piyasası, Çin Piyasası ve ikincil piyasa merkezleri gibi önemli merkezler de dahil olmak üzere farklı dünya pazarlarındaki altın talebini araştırır. Araştırma ayrıca Rusya-Ukrayna çatışması ve BRICS anlaşması gibi önemli olayların altın madenciliği ve fiyatlandırma üzerindeki etkilerini inceleyerek altın ticaretinin uluslararası dinamiklerine derinlemesine bir bakış sunar. Türkiye'deki altın ticaretine özel olarak odaklanan bu tez, İstanbul Kıymetli Madenler Borsası içinde standart ve standart olmayan altın ticaretini ve Türk pazarındaki arz-talep dinamiklerini araştırır. Ek olarak, araştırma Türkiye'deki ticaret ve üretim yönlerini değerlendirerek, pazarın performansını ve uluslararası altın ticareti genelindeki önemini açığa çıkarır. Bu çalışma, altının uluslararası ticaretin önemli bir bileşeni olarak karmaşık dinamiklerini ve küresel ekonomik peyzajla olan bağlantısını daha iyi anlamak için kapsamlı bir analiz sunmayı amaçlamaktadır. Bulgular, altın piyasasının karmaşıklıklarını ve küresel ekonomik manzarayla olan bağlantısını daha derinlemesine anlamaya katkı sağlayacaktır.The international trade of gold holds significant importance in the global economy, shaping financial systems and influencing various industries. This research delves into the multifaceted dimensions of gold trade, exploring its historical developments, production processes, and diverse applications across sectors. The study investigates the demand for gold in different world markets, including key hubs like the London Market, the US Futures Market, the Chinese Market, and secondary market centres. The first part of the study examines the historical progression of gold, examining its significance and development across time. It illustrates how gold interacts with monetary systems and emphasizes how valuable and useful it is as a medium of trade. The research also delves into international trade dynamics surrounding gold, exploring the impact of significant events such as the Russia-Ukraine conflict and the BRICS agreement on gold mining and pricing. Focusing specifically on the gold trade in Türkiye, this thesis examines the Istanbul Precious Metals Market, the standard and non-standard gold traded within it, and the dynamics of supply and demand in the Turkish market. Additionally, the research evaluates the trade and production aspects in Türkiye, shedding light on the market's performance and its significance in the broader context of international gold trade
REDUCING THE DELIVERY TIME OF A COMPANY OPERATING IN THE AUTOMOTIVE INDUSTRY BY VALUE STREAM MAPPING METHOD
No full textÜretim kaynaklarının sınırlı olduğu ve işletme maliyetlerinin yüksek olduğu bir rekabet ortamında kullanılacak kaynakların planlaması ve müşteri memnuniyetini sağlayacak kalite, kullanılabilirlik, tasarım gibi faktörlerin düşük maliyet, yüksek karlılıkla üretilmesi hedeflenmektedir. Bu hedefler doğrultusunda israflar ortadan kaldırılmak istenmektedir. Araştırmada amaç; Sistemi yalın üretim prensipleriyle bütün olarak inceleyip, müşteri talebine göre sıfır stok kavramıyla üretim yapmaktır. Bu çalışmada kullanılacak yöntem olan değer akışı haritalamanın temel amacı, israfları tespit etmek ve kaldırılması için gerekli adımları belirlemektir. Araştırma, yalın üretimi benimseyen otomotiv sanayiinde faaliyet gösteren otomobil koltuk kılıfı üreticisi Toyota Boshoku Sewtech Türkiye’nin yalınlaştırılması üzerine yapılmıştır. Araştırma sonucunda müşteri memnuniyetinin sağlanması, akış süresinin kısaltılması, israf kaynakların tespit edilmesi ve para dönüşünü arttırmak amaçlanmaktadır. İşletmede, değer katan ve katmayan faaliyetlerin ayrıştırılması değer akışı analizi ile gerçekleştirilmiştir. Çalışmanın sonucunda öneriler sunulmuştur.In a competitive environment where production resources are limited and operating costs are high, it is aimed to plan the resources to be used and to produce factors such as quality, usability and design that will ensure customer satisfaction with low cost and high profitability. In line with these targets, it is desired to eliminate waste. The purpose of the research; It is to examine the system as a whole with lean production principles and to produce with the concept of zero stock according to customer demand. The main purpose of value stream mapping, which is the method to be used in this study, is to identify waste and determine the necessary steps to remove it. The research was conducted on the simplification of Toyota Boshoku Sewtech Turkey, an automobile seat cover manufacturer operating in the automotive industry that has adopted lean manufacturing. As a result of the research, it is aimed to ensure customer satisfaction, shorten the flow time, identify waste resources and increase the return on money. In the business, the separation of value-adding and non-value-added activities was carried out by value stream analysis. At the end of the study, suggestions were presented
Kâr amacı olmayan kuruluşlar için finansal raporlama: Vaka of Peace Corps Gambıa
Get PDFFinans Enstitüsü, Uluslararası Finans Ana Bilim DalıKâr amacı gütmeyen kuruluşların hesap verebilirlik ve şeffaflık konusundaki eksikliğiyle ilgili endişeler, muhasebe standartları veya uygulama rehberleri oluşturulması yönünde çalışmaları gerektirdi. Yönetim, uyum, bilgi asimetrisi, şeffaflık ve etkinlik gibi konularda, NPO sektörünün tüm yönlerini kapsayacak bir çerçeve düzenleme gerekti. Bu tezin amacı, Gambiya'da faaliyet gösteren A.B.D. menşeli örgüt Peace Corp'un Finansal tablolarını inceleyerek bunların CIPFA tarafından hazırlanan taslak IFR4NPO raporlama standardı ile ortak noktalarının bulunup bulunmadığını tespit etmektir. Bu araştırma ayrıca, finansal raporlama amaçlarının çeşitli organizasyon biçimleri arasında nasıl farklılık gösterdiğini incelemekte ve bu farklılıkların önemli ölçüde çeşitlendirilmiş finansal raporlama standartlarını haklı çıkaracak kadar önemli olup olmadığını belirlemektedir. Kâr amacı gütmeyen işletmeler için muhasebe ve finansal raporlama konularını kapsayan Fon Muhasebesi de bu tezde işlenmiştir. Konuyla ilgili literatür taranmış ve tanıtılmıştır.Concerns about the non-profit sector's alleged lack of accountability and transparency have led to calls for the creation of accounting standards or recommended practices. This should be a framework for covering all aspects of the NPO sector, from governance and compliance to information asymmetry and transparency, and effectiveness. The purpose of this thesis is to review the Financial Statements of the Peace Corps Gambia, in view of the IFR4NPO prepared by CIPFA and search for some common points. This research further examines how financial reporting objectives vary among the various organizational forms and determines whether these differences are significant enough to justify significantly diversified financial reporting standards. Fund accounting is covered in this thesis since it is relevant to NPOs. The relevant literature is studied and briefed in this thesis. The Financial Statements of Peace Corps are introduced and analysed. Some comments are done about the financial reporting in NPOs, particularly in the context of Peace Corps
Podcasting As A Digital Content: A Review On Podcast Broadcast Of National Radios
No full textBu araştırmanın amacı Türkiye’de ulusal ölçekli karasal yayın yapan radyo istasyonlarının podcast yayıncılığına adapte olup olmadığını ortaya koymaktır. Bu çalışmada nitel araştırma yöntemlerinden doküman tarama yöntemi kullanılmıştır. Bu araştırma, Türkiye’deki ulusal radyo lisansı R1’e sahip olan radyo kuruluşları ile sınırlandırılmıştır. Bu çalışmaya Radyo ve Televizyon Üst Kurulu’nca (RTÜK) yayımlanan ‘‘R1-Ulusal Radyo Yayın Lisansına Sahip Kuruluşlar’’ listesinde yer alan radyo kuruluşları dahil edilmiştir. Bir radyonun sahip olduğu web site, mobil uygulama veya dahil olduğu başka özgün platform ya da platformlar, podcast yayıncılığını yapabilmesini sağlayan parametreler olarak belirlenmiştir. Bu doğrultuda örneklem grubundaki radyoların; kurumsal bir web site ve mobil uygulama sahibi olup olmadıkları, ayrıca farklı bir özgün platforma dahil olup olmadıkları incelenmiştir. Örneklem grubundaki radyo kuruluşlarının söz konusu dijital ortamlarda podcast içerikleri yayınlayıp yayınlamadıkları tespit edilmiştir. Bu araştırma kapsamında aynı zamanda örneklem grubundaki radyo kuruluşlarının, küresel ölçekte popüler olan Spotify, Apple Podcast, Google Podcast isimli platformlarda yer alıp almadıkları da incelenmiştir. Bu araştırma, son yıllarda küresel ölçekte popüler hale gelen podcast yayıncılığına, Türkiye’deki ulusal radyo istasyonlarının adapte olup olmadığını ortaya koyması bakımından önem arz etmektedir. Podcast içerikleri üreten bireysel ve kurumsal yayıncıların ortaya çıktığı günümüzde, sürekli sesli içerikler üreten ve yayınlayan radyo kuruluşlarının, mevcut içeriklerini internet ortamında ‘arşiv’ veya ‘podcast’ başlığı altında yeniden yayınlayıp yayınlamadıkları konusu, bu çalışmanın temel problemini oluşturmaktadır. Bu araştırmanın sonucunda elde edilen verilere göre: Türkiye’deki ulusal radyoların nerdeyse yarısının 5 adet özgün medya platformu içerisine dahil olduğu tespit edilmiştir. Türkiye’deki ulusal radyoların ‘podcast’e ilgisiz kalmadıkları ve söz konusu dijital yayıncılığa adapte olmak için alternatif çalışmalar yaptıkları görülmüştür.The purpose of this research is to determine whether terrestrial radio stations broadcasting on a national scale in Turkey have adapted to podcast broadcasting. The document scanning method, which is one of the qualitative research methods, was used in this study. This research is limited to radio organizations that have the R1 license, which means national radio broadcasting license, in Turkey. Radio organizations included in the list of “R1-National Radio Broadcasting Organizations” published by the Radio and Television Supreme Council (RTÜK) were included in this study. In recent years, podcast broadcasting, a type of digital audio broadcasting, has emerged worldwide. Podcast broadcasters can be mostly amateur individuals and sometimes professional individuals or organizations. Podcast is created by the spread of an audio content among digital devices. Radio organizations also perform audio broadcasting in their daily workflow. In addition to traditional broadcasting methods such as FM radio and satellite broadcasting, internet-based broadcasting options have also developed in recent years. It has been observed that radio organizations also re-service their broadcasts in podcast format over the internet. The web site, mobile application, or other unique platforms in which a radio organization is involved have been identified as parameters that enable podcast broadcasting. Within the scope of these parameters, it was examined whether the radio organizations in the sample group have a corporate website and mobile application, and whether they are involved in a different unique platform. It was determined whether the radio organizations in the sample group broadcast podcast content in these digital environments. In this research, it was also analyzed whether the radio organizations in the sample group are included in podcast platforms named Spotify, Apple Podcast, and Google Podcast, which are popular globally. This research is important in terms of revealing whether terrestrial radio stations broadcasting on a national scale in Turkey have adapted to podcast broadcasting, which has become popular globally in recent years. In today’s world, where individual and corporate publishers create podcast content every day, the issue of whether radio stations that produce and broadcast audio content every day are republishing their existing content under the title of ‘archive’ or ‘podcast’ on the internet constitutes the main problem of this study. According to the findings obtained in this research, 18 out of 42 radio stations in the sample group are hosted on a unique platform. These unique platforms have both desktop websites and mobile applications. These platforms serve radio broadcasts both in live stream and podcast format. However, radio stations attach importance to the website, which is one of the basic products of digitization and web 2.0 technology. Through the website, they inform their listeners more effectively and serve their live broadcasts and archive/podcast broadcasts. It was observed that out of 42 national radio stations broadcasting in Turkey, only 2 do not have a website. Although 5 radio stations do not have their own website, it was seen that they serve their broadcasts on the website of the unique platform they belong to. In terms of mobile application ownership, 17 out of 42 radio stations have exclusive mobile applications, while 18 continue to broadcast their programs on the mobile application of a unique platform. These findings show that radio stations have adapted significantly to digitization. According to the findings identified in the context of podcast and archive publishing, 12 out of 42 radio stations do not have archive/podcast broadcasts on the web. Of the 42 radio stations in the sample group, it is possible to listen to their programs again on the web as archive/podcast for 30 of them. When focusing on podcast and archive publishing in the context of mobile applications, data was obtained that 23 of the 42 radio stations in the sample group published archive/podcast on mobile platforms. When popular podcast platforms globally such as Spotify, Apple Podcasts and Google Podcasts were examined, it was found that 8 of the 42 radio stations in the sample group were on Spotify, 7 on Google Podcasts, and only 3 on Apple Podcasts. The reasons why traditional radio stations in Turkey are not present in the said platform, which is of great importance globally, are the subject of a different study. According to the data obtained as a result of this research, it was determined that almost half of the national radios in Turkey are included in 5 original media platforms. These radios host their podcast broadcasts within the mobile application and website belonging to the original media platform they are included in. It was observed that radios included in the original media platform mostly do not have a separate website and mobile application ownership. However, almost all radio stations in the sample group have their broadcasts accessible in the digital environment with the names ‘archive’ or ‘podcast’. It is observed that radio stations in the sample group tend to create digital platforms and join an existing original local platform instead of choosing popular platforms globally. As a result, it was concluded that national radios in Turkey are not indifferent to the concept of ‘podcast’ and that they make alternative efforts to adapt to this digital broadcasting
Is pass-through of the exchange rate to restaurant and hotel prices asymmetric in the US? Role of monetary policy uncertainty
No full textThis study examines the exchange rate pass-through to the United States (US) restaurant and hotel prices by incorporating the effect of monetary policy uncertainty over the period 2001:M12 to 2019:M01. Using the nonlinear autoregressive distributed lag (NARDL) model, empirical evidence indicates asymmetric pass-through of exchange rate and monetary policy uncertainty. Moreover, a stronger pass-through effect is observed during depreciation and a negative shock in monetary policy uncertainty, corroborating asymmetric pass-through predictions. Our results further show that a positive shock in energy prices leads to an increase in restaurant and hotel prices. Furthermore, asymmetric causality indicates that a positive shock in the exchange rate causes a positive shock to restaurant and hotel prices. We found feedback causal effects between positive and negative shocks in monetary policy uncertainty and positive and negative shocks in the exchange rate. Additionally, we detected a one-way asymmetric causality, flowing from a positive (negative) shock to a positive (negative) shock in energy prices. Therefore, these findings provide insights for policymakers to achieve low and stable prices in the US restaurant and hotel industry through sound monetary policy formulations
A Quantitative Based Research on the Production of Image Captioning
Get PDFIt is widely recognized that modern systems can discern the context of an image and enrich it with relevant captions through the fusion of computer vision and natural language processing, a technique referred to as 'image caption production.' This article aims to shed light on and analyze various image captioning techniques that have evolved over the past few decades, including the Attention Model, Region-Level Caption Detection, Semantic Content-Based Models, Multimodal Models, and more. The evaluation of these techniques employs diverse criteria such as Precision Rate, Recall Rate, F1 Score, Accuracy Rate, among others, while employing various datasets for comparison. This article offers a comprehensive structural examination of contemporary image captioning methods. Researchers can leverage the insights from this analysis to develop innovative, improved approaches that sidestep the shortcomings of older methods while retaining their beneficial aspects