Yeşil Lojistik Eğilimi ve Lojistik Performans İlişkisi: Lojistik Hizmet Sağlayıcılar Üzerine Karşılaştırmalı Bir Vaka Çalışması

Increasing concerns related to environmental side effects of the logisticsservices and competition between the logistics service providers are twopressuring factors on logistics service providers. This study seeks to explore the relation between green logistics tendency and logistic performance from the perspective of logistics service providers. In order to reach this aim, two logistics service providers are investigated by comparative case study method. Findings showed the effects of green logistics services on logistics performance components.Keywords: Green Logistics, Logistics Performance, Logistics Service providers, Comparative case studyLojistik hizmetlerin çevresel yan etkileri ile ilgili artan endişeler ve lojistik hizmet sağlayıcılar arasındaki rekabet lojistik hizmet sağlayan işletmeler üzerinde baskı yaratan iki faktördür. Bu çalışmada, yeşil lojistik eğilimi ile lojistik performans arasındaki ilişkinin lojistik hizmet sağlayıcılar açısından ortaya koyulması amaçlanmıştır. Bu amaca yönelik olarak, iki lojistik hizmet sağlayıcı işletme karşılaştırmalı vaka analizi yöntemi ile incelenmiştir. Sonuçlar yeşil lojistik hizmetlerinin lojistik performans bileşenleri üzerindeki etkilerini göstermektedir.Anahtar sözcükler: Yeşil Lojistik, Lojistik Performans, Lojistik Hizmet sağlayıcılar, Karşılaştırmalı Vaka Analiz

Lower Palaeozoic-Paleogene geological development of a deep-water rift (Güzelsu Corridor) along the northern continental margin of the Southern Neotethys in the Eastern Mediterranean region: Evidence from the Antalya Complex and the adjacent Tauride Carbonate Platform

Rift basins in mountain belts shed light on the palaeogeography and tectonic development of adjacent sutured ocean basins, as for the Antalya Complex in the S Neotethys region. Based on literature review, supplemented by multidisciplinary new data, the Antalya Complex in this area represents an Upper Permian-Triassic rift basin and subsequent Jurassic-Cretaceous passive margin that encompasses a marginal shallow-water carbonate platform, slope facies and deeper water axial pelagic sediments and basaltic volcanics. The rift basin was bordered to the north by the Tauride Carbonate Platform, and to the south by the metamorphic Alanya Massif farther south. The S Neotethys was located further south, adjacent to N Africa.The evidence comes from a critical but little known E-W trending segment of the Antalya Complex (Antalya Nappes) in the east of the regional Isparta Angle (an orocline), known as the Güzelsu Corridor. To the south of the Tauride Carbonate Platform, the Güzelsu Corridor exposes three tectonic units within the Antalya Complex of Early Palaeozoic-Late Cretaceous age. The Lower Unit represents the proximal-distal slope of the Tauride platform. The Middle Unit preserves U. Permian-U. Cretaceous axial rift and passive margin settings. The Upper Unit (Gündoğmuş, Kavzandağ and Katrandağ thrust sheets) documents L. Palaeozoic pre-rift sediments, unconformably overlain by Permian-Triassic syn-rift units and a post-rift Jurassic-Cretaceous carbonate platform.Geochemical data highlight the rift-related setting of Upper Permian and Upper Triassic basaltic rocks in both the Middle and Upper Units. Radiolarian biochronology shows that the Middle Unit includes radiolarites of Late Triassic to Late Cretaceous (Campanian) age. Calcareous microfossil data shed light on facies development within the Antalya Complex and along the southern margin of the Tauride Carbonate Platform. Sedimentological and petrographic evidence help indicate depositional environments and processes. Structural data shed light on the emplacement of the Antalya Complex and its relation to the metamorphic Alanya Massif. Comparisons with counterparts of the Antalya Complex around the periphery of the Isparta Angle provide a regional palaeogeographic context.The Antalya Complex in the study area began to rift during the Late Permian, with initial localised alkaline basaltic volcanism. Further rifting (pulsed) and deepening took place during the Early to Middle Triassic. More extensive alkaline volcanics erupted during the Late Triassic (Carnian), coupled with terrigenous turbidites (Mid-Late Triassic), culminating in continental break-up to form the S Neotethys regionally (Carnian-Norian). Accumulation below the carbonate compensation depth took place within the deep-water rift basin during Jurassic-Late Cretaceous.Related to Late Cretaceous subduction, the Alanya microcontinent subducted northwards beneath the Antalya rift and the Tauride Carbonate Platform to the north. Initial collision dissected the rift and its margins into the three major tectonic units. Polymictic debris flows (olistostromes) were emplaced onto the southern margin of the Tauride platform during the latest Cretaceous (Campanian-Maastrichtian). Following partial exhumation, the Alanya Massif was thrust northwards, shedding metamorphic debris onto the adjacent Tauride platform (Early-Middle Eocene). Post-suture tightening (e.g., transcurrent faulting) occurred prior to Miocene transgression. The regional Eocene deformation was probably driven by final closure of Neotethyan ocean farther north

Forecasting Domestic Shipping Demand of Cement: Comparison of SARIMAX, ANN and Hybrid SARIMAX-ANN

Accurate forecasting of shipping demand for cement is valuable for the ensure of proper supply and demand match. Due to the perishability nature of the shipping industry, accuracy performances of the models in the industry is particularly important. Therefore, supply and demand in the industry should match. This paper compares three methods, Seasonal Autoregressise Integrated Moving Average with Exogenous Variable (SARIMAX), Artificial Neural Network-Multilayer Perceptron (MLP), and SARIMAX-MLP hybrid model for domestic shipping demand of cement loaded at ports of Turkey. The hybrid model forecasting of the shipping demand of cement appears to be more applicable than that of the single SARIMAX. The results indicate that the prediction accuracy of SARIMAX model is higher than the MLP model and that the hybrid model is the most satisfactory of the three models

Perceptions of Female and Male University Students on Sustainable Maritime Development Concept: A Case Study from Turkey

Objective: It is a fact that maritime transport is essential for achieving sustainable transport development, and the concept of sustainable development has recently raised great interest in maritime industry. The fundamental role in driving and supporting the sustainability should be pursued by young people, and in Turkey as a developing country, sustainable maritime development should be particularly emphasized by the young population amounting to one third of total. The aim of this paper is to analyze the perceptions of female and male students on sustainable maritime development concept. Method: In order to reach this aim, the study was carried out using a questionnaire distributed to maritime faculty students in Turkey. Three pillars of sustainable maritime development were used to reveal how important the issue is for students and how they perceive them. Results: The study indicated strong emphasis of social sustainable maritime development while the key factor perceived as water pollution as one of the environmental item. Conclusion: The results of the study reveal not only the perceptional differences between Turkish female and male students on sustainable development concept but also on sources of environmental concerns

Perceptions of Female and Male Students on Sustainable Maritime Development Concept: A Case Study from Turkey

Objective: It is a fact that maritime transport is essential for achieving sustainable transport development, and the concept of sustainable development has recently raised great interest in maritime industry. The fundamental role in driving and supporting the sustainability should be pursued by young people, and in Turkey as a developing country, sustainable maritime development should be particularly emphasized by the young population amounting to one third of total. The aim of this paper is to analyze the perceptions of female and male students on sustainable maritime development concept. Method: In order to reach this aim, the study was carried out using a questionnaire distributed to maritime faculty students in Turkey. Three pillars of sustainable maritime development were used to reveal how important the issue is for students and how they perceive them. Results: The study indicated strong emphasis of social sustainable maritime development while the key factor perceived as water pollution as one of the environmental item. Conclusion: The results of the study reveal not only the perceptional differences between Turkish female and male students on sustainable development concept but also on sources of environmental concerns

Stratigraphy and Microfacies of Cretaceous Limestones in the Bornova Flysch Zone (Spil Mountain, Manisa, Western Turkey)

Spil Mountain (Manisa, western Turkey) is situated in the Bornova Flysch Zone, which is bounded by the Izmir-Ankara Suture Zone (northern branch of Neo-Tethys) to the northwest and by the Menderes Massif to the southeast. The purpose of this study is to describe microfacies and microfossil assemblages of the Spil Mountain carbonate sequences. Two carbonate sequences in autochthonous and allochthonous settings are differentiated. The autochthonous sequence begins with inner-platform carbonates of Early Cretaceous age, which are represented by algal wackestone, fenestral mudstone, intraclastic packstone with Praechrysalidina infracretacea, Salpingoporella annulata, and charophyte oogonia. The platform succession is disconformably overlain by calciclastic turbidites and pelagic wackestones of Maastrichtian age, representing platform drowning, and then passes upward into siliciclastic sediments containing large limestone blocks. Allochthonous carbonate sequences range in age from the ? Cenomanian to Santonian-early Campanian, and were deposited in peritidal to outer-shelf palaeoenvironments. The lower part of the allochthonous sequence is composed of foraminiferal-intraclastic wackestones-packstones with mainly miliolids and Cuneolina pavonia. The middle part consists of peloidal wackestone/packstone with Aeolisaccus, Thaumatoporella, benthic foraminifers, and rudist shell fragments. The benthic foraminifera are represented by Pseudocyclammina sphaeroidea, Keramosphaerina tergestina, Moncharmontia apenninica/compressa, and Scandonea samnitica. In the upper part of the allochthonous sequence, pelagic wackestone with Marginotruncana and Dicarinella is alternated with foraminiferal-peloidal packstone with rudist shell fragments and microbioclastic wackestone

Comparative bibliometric and network analysis of maritime transport/shipping literature using the Web of Science database

This paper presents a bibliometric analysis of maritime transport/shipping-related publications between 1975 and November 2018 in order to describe the profile and research themes. Comprehensive queries were used to reveal the general structure of maritime transport/shipping-related literature in the context of the Science Citation Index-Expanded (SCI-Expanded) and Social Sciences Citation Index (SSCI) databases. The analysis was conducted using bibliometric mapping. Five years of maritime/shipping literature was also comparatively presented. The results indicated major research areas, leading authors, countries, organizations, journals, and publications with the contributions of the comments of leading authors. Within the five-year period, maritime surveillance research and marine engineering research clusters were identified as developing clusters that expanded and received increased interest. Economic studies decreased, while operations research increased in the maritime transport/shipping literature. Optimization research and marine engineering research appear to be growing research clusters. Interdisciplinary research appears to have a high chance of being published in SCI-Expanded and SSCI in the future. The main contribution of this paper was the identification of areas of current research interests which allowed the quantification and visualization of changes in the entire body of shipping literature over a short time period