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Full-Text Articles in Entire DC Network
Dpafy-Gcaps: Denoising Patch-And-Amplify Gabor Capsule Network For The Recognition Of Gastrointestinal Diseases, Henrietta Adjei Pokuaa, Adeboya Felix Adekoya, Benjamin Asubam Weyori, Owusu Nyarko-Boateng
Dpafy-Gcaps: Denoising Patch-And-Amplify Gabor Capsule Network For The Recognition Of Gastrointestinal Diseases, Henrietta Adjei Pokuaa, Adeboya Felix Adekoya, Benjamin Asubam Weyori, Owusu Nyarko-Boateng
Turkish Journal of Electrical Engineering and Computer Sciences
Deep learning (DL) models have performed tremendously well in image classification. This good performance can be attributed to the availability of massive data in most domains. However, some domains are known to have few datasets, especially the health sector. This makes it difficult to develop domain-specific high-performing DL algorithms for these fields. The field of health is critical and requires accurate detection of diseases. In the United States Gastrointestinal diseases are prevalent and affect 60 to 70 million people. Ulcerative colitis, polyps, and esophagitis are some gastrointestinal diseases. Colorectal polyps is the third most diagnosed malignancy in the world. This …
Joint Control Of A Flying Robot And A Ground Vehicle Using Leader-Follower Paradigm, Ayşen Süheyla Bağbaşi, Ali Emre Turgut, Kutluk Bilge Arikan
Joint Control Of A Flying Robot And A Ground Vehicle Using Leader-Follower Paradigm, Ayşen Süheyla Bağbaşi, Ali Emre Turgut, Kutluk Bilge Arikan
Turkish Journal of Electrical Engineering and Computer Sciences
In this study, a novel control framework for the collaboration of an aerial robot and a ground vehicle that is connected via a taut tether is proposed. The framework is based on a leader-follower paradigm. The leader follows a desired trajectory while the motion of the follower is controlled by an admittance controller using an extended state observer to estimate the tether force. Additionally, a velocity estimator is also incorporated to accurately assess the leader’s velocity. An essential feature of our system is its adaptability, enabling role switching between the robots when needed. Furthermore, the synchronization performance of the robots …
Stereo-Image-Based Ground-Line Prediction And Obstacle Detection, Emre Güngör, Ahmet Özmen
Stereo-Image-Based Ground-Line Prediction And Obstacle Detection, Emre Güngör, Ahmet Özmen
Turkish Journal of Electrical Engineering and Computer Sciences
In recent years, vision systems have become essential in the development of advanced driver assistance systems or autonomous vehicles. Although deep learning methods have been the center of focus in recent years to develop fast and reliable obstacle detection solutions, they face difficulties in complex and unknown environments where objects of varying types and shapes are present. In this study, a novel non-AI approach is presented for finding the ground-line and detecting the obstacles in roads using v-disparity data. The main motivation behind the study is that the ground-line estimation errors cause greater deviations at the output. Hence, a novel …
Cover And Contents
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Deep Learning-Based Breast Cancer Diagnosis With Multiview Of Mammography Screening To Reduce False Positive Recall Rate, Meryem Altın Karagöz, Özkan Ufuk Nalbantoğlu, Derviş Karaboğa, Bahriye Akay, Alper Baştürk, Halil Ulutabanca, Serap Doğan, Damla Coşkun, Osman Demi̇r
Deep Learning-Based Breast Cancer Diagnosis With Multiview Of Mammography Screening To Reduce False Positive Recall Rate, Meryem Altın Karagöz, Özkan Ufuk Nalbantoğlu, Derviş Karaboğa, Bahriye Akay, Alper Baştürk, Halil Ulutabanca, Serap Doğan, Damla Coşkun, Osman Demi̇r
Turkish Journal of Electrical Engineering and Computer Sciences
Breast cancer is the most prevalent and crucial cancer type that should be diagnosed early to reduce mortality. Therefore, mammography is essential for early diagnosis owing to high-resolution imaging and appropriate visualization. However, the major problem of mammography screening is the high false positive recall rate for breast cancer diagnosis. High false positive recall rates psychologically affect patients, leading to anxiety, depression, and stress. Moreover, false positive recalls increase costs and create an unnecessary expert workload. Thus, this study proposes a deep learning based breast cancer diagnosis model to reduce false positive and false negative rates. The proposed model has …
Signer-Independent Sign Language Recognition With Feature Disentanglement, İnci̇ Meli̇ha Baytaş, İpek Erdoğan
Signer-Independent Sign Language Recognition With Feature Disentanglement, İnci̇ Meli̇ha Baytaş, İpek Erdoğan
Turkish Journal of Electrical Engineering and Computer Sciences
Learning a robust and invariant representation of various unwanted factors in sign language recognition (SLR) applications is essential. One of the factors that might degrade the sign recognition performance is the lack of signer diversity in the training datasets, causing a dependence on the singer’s identity during representation learning. Consequently, capturing signer-specific features hinders the generalizability of SLR systems. This study proposes a feature disentanglement framework comprising a convolutional neural network (CNN) and a long short-term memory (LSTM) network based on adversarial training to learn a signer-independent sign language representation that might enhance the recognition of signs. We aim to …
The Sect. Tricheroides In The Genus Knautia (Caprifoliaceae) Is More Complex Then Known: An Unusual New Species From Türkiye, Candan Aykurt, Mertcan Gülben, Sinem Günaydin, Duygu Sari, Ramazan Süleyman Göktürk, Emirhan Berberoğlu, Serkan Gülsoy
The Sect. Tricheroides In The Genus Knautia (Caprifoliaceae) Is More Complex Then Known: An Unusual New Species From Türkiye, Candan Aykurt, Mertcan Gülben, Sinem Günaydin, Duygu Sari, Ramazan Süleyman Göktürk, Emirhan Berberoğlu, Serkan Gülsoy
Turkish Journal of Botany
During a biodiversity survey in the Western Taurus Mountains (Antalya, Türkiye), a new species of the genus Knautia (Dipsacoideae, Caprifoliaceae), K. sivridaghense, was discovered. The new species, which is characterized by its dwarf caespitose perennial habit, is found in rocky places under mixed forests at elevations of 1400–1450 m. Knautia sivridaghense is distinguished from its morphologically similar species, K. goecmenii, especially by its dwarf caespitose perennial habit, unbranched stems, length of involucral bracts, and other floral characteristics. Our phylogenetic analyses based on the nuclear ITS and chloroplast petN(ycf6)-psbM regions confirm its placement within Sect. Tricheroides, contributing to the understanding of …
Eco-Assessment Of Phytoplankton Composition In Relation To Environmental Conditions Of Saltwater And Freshwater Lakes In The Konya Closed Basin (Türkiye), Abuzer Çelekli, Ömer Lekesiz, Tolga Çetin
Eco-Assessment Of Phytoplankton Composition In Relation To Environmental Conditions Of Saltwater And Freshwater Lakes In The Konya Closed Basin (Türkiye), Abuzer Çelekli, Ömer Lekesiz, Tolga Çetin
Turkish Journal of Botany
Great importance is given to maintaining lentic ecosystems, threatened by human-induced consequences worldwide. The present study hypothesized to assess differences in species-environment relationships and ecological status of 15 lakes (saline water systems, high-altitude freshwater lakes, and other freshwater lakes) in the Konya Closed River Basin using phytoplankton indices throughout wet and dry periods. Results of canonical correspondence analysis separated saline and freshwater (high-altitude) habitats, which were characterized by different phytoplankton species. Total phosphorus (TP), electrical conductivity (EC), nickel-Ni, and altitude were the most influential environmental factors affecting phytoplankton dispersal in these ecosystems. Saline lakes were under pressure of high EC, …
Cephalaria Gokturkii (Caprifoliaceae), A New Species From Southwestern Anatolia, Türkiye, Gürkan Semi̇z, Meryem Bozkurt, Batıkan Günal, Tuna Uysal
Cephalaria Gokturkii (Caprifoliaceae), A New Species From Southwestern Anatolia, Türkiye, Gürkan Semi̇z, Meryem Bozkurt, Batıkan Günal, Tuna Uysal
Turkish Journal of Botany
A new Cephalaria (Caprifoliaceae) species, Cephalaria gokturkii, is described and illustrated from Girdev Mountain (Muğla Province) for the Flora of Türkiye. Throughout this manuscript, the new species and its relatives were compared in terms of morphological, palynological and molecular features. The obtained findings indicated that the new species is similar to C. elmaliensis but is characterized by having larger capitula and receptacular bracts in flower (vs. 1‒2 cm capitula and less than 3 mm in flower) and hairy trigonous-narrowly ovate involucral bracts (vs. glabrous and broadly ovate involucral bracts) and smaller involucels (vs. involucels longer than 10 mm in fruit). …
Two New Species Of Inocybe (Inocybaceae: Agaricomycetes) From Turkey Based On Morphological Characteristics And Phylogenetic Evidence, Oğuzhan Kaygusuz, Ditte Bandini, Henning Knudsen, Meike Piepenbring
Two New Species Of Inocybe (Inocybaceae: Agaricomycetes) From Turkey Based On Morphological Characteristics And Phylogenetic Evidence, Oğuzhan Kaygusuz, Ditte Bandini, Henning Knudsen, Meike Piepenbring
Turkish Journal of Botany
During a survey of agarics in the Mediterranean region of southwestern Turkey, some noteworthy mushrooms were collected. Among the specimens, two represent new species of Inocybe which are proposed and illustrated in this study as Inocybe pseudogeophylla and I. succinea. Molecular phylogenetic analyses based on a nuc rDNA ITS1-5.8S-ITS2 (ITS) and partial 28S rDNA (LSU) dataset reveal that these species belong to the Inocybe geophylla group. The sequences of the new species form two independent lineages and differ from the known species of Inocybe by a unique combination of morphological characteristics. Detailed macro- and micromorphological features, colour photographs, habitat and …
Post-Mucilage Status Of The Teleost Fish Assemblages In The Sea Of Marmara, Mustafa Sari, Uğur Karadurmuş
Post-Mucilage Status Of The Teleost Fish Assemblages In The Sea Of Marmara, Mustafa Sari, Uğur Karadurmuş
Turkish Journal of Zoology
A frightening mucilage event occurred in the Sea of Marmara (SoM) from November 2020 to July 2021, leaving devastating effects on maritime industries, fishing activities and the benthic ecosystem. The mucilage led to intense fish mortalities, particularly affecting species like smelt, anchovy, and picarel, with severe consequences for benthic ecosystems and various marine species. This study aims to analyze the possible long-term effects of the recent mucilage disaster on species diversity and biomass by assessing the current status of teleost fish assemblages in the SoM. The data set is based on bottom trawl surveys carried out at 52 points at …
Occlusal Surface Variations In Genetically-Identified Specimens Of The Genus Apodemus (Mammalia: Rodentia) Distributed In The Northern Anatolia Region And Three Turkish Islands: Gökçeada, Marmara Island And Bozcaada, Duygu Korkmaz, Engin Selvi̇, Nuri Yi̇ği̇t, Ercüment Çolak
Occlusal Surface Variations In Genetically-Identified Specimens Of The Genus Apodemus (Mammalia: Rodentia) Distributed In The Northern Anatolia Region And Three Turkish Islands: Gökçeada, Marmara Island And Bozcaada, Duygu Korkmaz, Engin Selvi̇, Nuri Yi̇ği̇t, Ercüment Çolak
Turkish Journal of Zoology
A total of 134 Apodemus samples, whose genetic diagnoses had been previously conducted, were morphologically examined from 39 localities in Northern Anatolia, Thrace, Gökçeada, Bozcaada and the Marmara Island. The variation boundaries of dental variations in the distribution areas of five Apodemus species (Apodemus flavicollis, Apodemus witherbyi, Apodemus sylvaticus, Apodemus uralensis, Apodemus mystacinus) included in the research were determined. The defining morphological characters of Apodemus species, which have a complex taxonomic status, and their variations according to regions were identified using samples that had undergone genetic diagnoses. It was determined whether geographical barriers such as the Marmara Sea, the Bosphorus …
The Common Wall Lizard Podarcis Muralis (Reptilia: Lacertidae) Shows Diverse Food Preferences And Intraspecific Difference: A Study Case From Bulgaria, Emiliya Vacheva, Borislav Naumov
The Common Wall Lizard Podarcis Muralis (Reptilia: Lacertidae) Shows Diverse Food Preferences And Intraspecific Difference: A Study Case From Bulgaria, Emiliya Vacheva, Borislav Naumov
Turkish Journal of Zoology
The Common wall lizard (Podarcis muralis) has the largest range among the genus Podarcis. Although there are a number of studies on its diet, data on regional level remains insufficient, particularly from a purely ecological perspective. We investigated 194 individual faecal samples of P. muralis obtained from two localities in western Bulgaria with the aim of clarifying the composition of the trophic spectrum of the species, as well as the intra-population characteristics in terms of age and sex. In one study site we compared the realized trophic niche (prey items from the faecal pellets) with the fundamental (invertebrates collected via …
Sexual Size Dimorphism Of Darevskia Schaekeli (Sauria: Lacertidae), Seyyed Saeed Hosseinian Yousefkhani, Saeed Morvari
Sexual Size Dimorphism Of Darevskia Schaekeli (Sauria: Lacertidae), Seyyed Saeed Hosseinian Yousefkhani, Saeed Morvari
Turkish Journal of Zoology
Sexual dimorphism has been established as one of the important evolutionary results in the process of sexual selection between males and females of different species. Distinct morphological features between males and females can also be seen in reptiles. Lizards of the genus Darevskia show sexual dimorphism, as Darevskia schaekeli was studied as an example. The morphological traits investigated between males and females of this species showed that head length, trunk length, length of forelimbs and hindlimbs as well as the number of femoral pores are more in males than in females. All these morphological traits, which were more in males …
Assessing Population Size And Survival Rate Of Pelophylax Bedriagae Caralitanus, In A Well-Protected Nature Park In Türkiye, Ayfer Şirin, Akın Kiraç, Gürçay Kıvanç Akyildiz, Eyup Başkale
Assessing Population Size And Survival Rate Of Pelophylax Bedriagae Caralitanus, In A Well-Protected Nature Park In Türkiye, Ayfer Şirin, Akın Kiraç, Gürçay Kıvanç Akyildiz, Eyup Başkale
Turkish Journal of Zoology
Estimating population trends provides valuable information for conservation biologists. Although there are many methods for estimating demographic rates, capture-mark-recapture (CMR) methods are known to be the most realistic method that can provide detailed data on individuals and populations, including the achievement of conservation goals. This study focused on determining the population trend of Pelophylax bedriagae caralitanus, Beyşehir frog using the CMR method in a protected area during the 2011 - 2019 breeding seasons. Our CMR data led to the selection of a model-considering constant survival rates, capture/recapture probabilities, and year-specific immigration/emigration patterns [Φ(··) y'(t) y''(t) p(··) = c(··) N(t)]-as the …
Existence And Nonexistence Of Permutation Trinomials And Quadrinomials, Zhiguo Ding, Michael Zieve
Existence And Nonexistence Of Permutation Trinomials And Quadrinomials, Zhiguo Ding, Michael Zieve
Turkish Journal of Mathematics
For each q of the form 4k , we determine all a ∈ Fq for which X + Xq + X2q−1 + aXq2−q+1 permutes Fq2 . We also construct a class of permutation trinomials over Fq2 in case q ≡ 1 (mod 3) .
Topogenous Orders And Closure Operators On Posets, Josef Slapal, Tom Richmond, Minani Iragi
Topogenous Orders And Closure Operators On Posets, Josef Slapal, Tom Richmond, Minani Iragi
Turkish Journal of Mathematics
We introduce the notion of topogenous orders on a poset X to be certain endomaps on X. We build on a Galois connection between endomaps and binary relations on X and study relationships between endomap properties and corresponding relational properties. In particular, we determine the topogenous orders that are in a one-to-one correspondence with (idempotent) closure operators.
Ranks Of Certain Semigroups Of Transformations With Idempotent Complement Whose Restrictions Belong To A Given Semigroup, Leyla Bugay, Ruki̇ye Sönmez, Hayrullah Ayik
Ranks Of Certain Semigroups Of Transformations With Idempotent Complement Whose Restrictions Belong To A Given Semigroup, Leyla Bugay, Ruki̇ye Sönmez, Hayrullah Ayik
Turkish Journal of Mathematics
For n ≥ 2, let Pn , In , Tn , and Sn be the partial transformation semigroup, symmetric inverse semigroup, (full) transformation semigroup, and symmetric group on the set Xn = {1, . . . , n}, respectively. In this paper, we find the ranks of certain subsemigroups of Pn , In , and Tn consisting of transformations with idempotent complement whose restrictions to the set Xm belong to the (possible) semigroup Sm, Im, Tm, or Pm for 1 ≤ m ≤ n − 1.
Approximation By Operators Involving Δh -Gould-Hopper Appell Polynomials, Bi̇lge Zehra Sergi̇ Yilmaz, Gürhan İçöz
Approximation By Operators Involving Δh -Gould-Hopper Appell Polynomials, Bi̇lge Zehra Sergi̇ Yilmaz, Gürhan İçöz
Turkish Journal of Mathematics
The present paper deals with the approximation properties of the linear positive operators, including Δh -Gould-Hopper Appell polynomials. We investigate some theorems for convergence of the operators and their approximation degrees with the help of the classical approach, Peetre’s K-functional, Lipschitz class and Voronovskajatype theorem. In the last section of the paper, we introduce the Kantorovich form of the operators and examine the approximation degree.
Elastic Strips Along Isotropic Curves In Complex 3-Spaces, Dae Won Yoon, Zühal Küçükarslan Yüzbaşi
Elastic Strips Along Isotropic Curves In Complex 3-Spaces, Dae Won Yoon, Zühal Küçükarslan Yüzbaşi
Turkish Journal of Mathematics
In this paper, we define the ruled surface in terms of the Darboux vector field of an isotropic curve in a complex 3-space, and we study the ruled surface as an elastic strip along the isotropic curve. First of all, we show that elastic strips along isotropic curves that serve critical points of the modified Sadowsky functional are characterized by three Euler-Lagrange equations. As a result, we give two conservation laws to characterize elastic strips of isotropic curves in complex 3-space and explain an isotropic helix in terms of the force vector. Finally, we give some examples to illustrate elastic …
Gradient Almost Yamabe Solitons Immersed Into A Riemannian Warped Productmanifold, Willian Tokura, Levi Adriano, Elismar Batista, Adriano Bezerra
Gradient Almost Yamabe Solitons Immersed Into A Riemannian Warped Productmanifold, Willian Tokura, Levi Adriano, Elismar Batista, Adriano Bezerra
Turkish Journal of Mathematics
The purpose of this article is to study the geometry of gradient almost Yamabe solitons immersed in warped product manifolds I ×f Mn whose potential is given by the height function from the immersion. First, we present some geometric rigidity on compact solitons due to a curvature condition on the warped product manifold. In the sequel, we investigate conditions for the existence of totally geodesic, totally umbilical, and minimal solitons. Furthermore, in the scope of constant angle immersions, a classification of rotational gradient almost Yamabe solitons immersed in R ×f Rn is also made.
A Note On Hybrid Hyper Leonardo Numbers, Elen Viviani Pereira Spreafico, Paula Maria Machado Cruz Catarino
A Note On Hybrid Hyper Leonardo Numbers, Elen Viviani Pereira Spreafico, Paula Maria Machado Cruz Catarino
Turkish Journal of Mathematics
Recently, many studies have been devoted to extending particular sets of integers to other special sets, such as complex, dual, hyperbolic, and hybrid numbers. In this study, we define a new generalization of the Leonardo sequence consisting of the hybrid hyper-Leonardo numbers. This sequence of numbers is an extension of the hyper Leonardo numbers in the hybrid set. We investigate some algebraic properties of this sequence, the generating function, and the Binet formula related to this type of sequence.
Generalizations Of Zassenhaus Lemma And Jordan-Hölder Theorem For 2−Crossed Modules, Seli̇m Çeti̇n
Generalizations Of Zassenhaus Lemma And Jordan-Hölder Theorem For 2−Crossed Modules, Seli̇m Çeti̇n
Turkish Journal of Mathematics
We present a comprehensive generalization of the Zassenhaus Lemma, the Scherier Refinement Theorem, and the Jordan-Hölder Theorem, extending their applicability to both crossed modules and 2−crossed modules. It is discovered that the previously established normality conditions are insufficient for forming quotient objects of 2−subcrossed modules, as demonstrated through an illustrative example, and these conditions are rigorously revised to allow these generalizations. These new conditions now yield results that are categorically accurate. Additionally, the study has led to the derivation of several supplementary results, including isomorphism theorems for 2−crossed modules.
Some New Results On Generalized Hyers-Ulam Stability In Modular Function Spaces, Mozhgan Taliman, Mahdi Azhini, Shahram Rezapour
Some New Results On Generalized Hyers-Ulam Stability In Modular Function Spaces, Mozhgan Taliman, Mahdi Azhini, Shahram Rezapour
Turkish Journal of Mathematics
In this work, we present a new weighted method for proving the generalized Hyers-Ulam stability for nonlinear Volterra integral equations in modular spaces. Using the same technique, we also prove the generalized Hyers- Ulam stability for nonlinear functional equations under Δ2 conditions. Fixed-point theorems in modular spaces form the foundation of our main conclusions.
On The Dual Pseudo-Spherical Elastic Curves, Gözde Özkan Tükel, Ahmet Yücesan
On The Dual Pseudo-Spherical Elastic Curves, Gözde Özkan Tükel, Ahmet Yücesan
Turkish Journal of Mathematics
We investigate a dual bending energy functional that operates on the dual pseudo-sphere in dual Lorentzian space. For a nonnull dual curve on the dual pseudo-sphere to be considered elastic, it must satisfy the conditions of a dual Euler-Lagrange equation. To solve this problem, we use Jacobi elliptic functions to approach the real part and the integral factors method to solve the dual part. Using E. Study mapping, we examine situations where every timelike or spacelike dual elastic curve on the dual pseudo-sphere matches an elastic strip with a suitable base curve in Minkowski 3-space.
Alternative Solution To The Fractional Differential Equation With Recurrence Relationship, Luciano L. Luque, Gustavo Abel Dorrego
Alternative Solution To The Fractional Differential Equation With Recurrence Relationship, Luciano L. Luque, Gustavo Abel Dorrego
Turkish Journal of Mathematics
A different solution from the one already known for sequential fractional differential equations with recurrence relation is proposed. This solution involves a Mittag-Leffler type function, which satisfies a recurrence property compatible with the behavior of sequential fractional differential equations with recurrence relation.
A Study Of The Scattering Analysis Of The Multiplicative Sturm-Liouville Problem, Güler Başak Öznur, Güher Gülçehre Özbey, Yelda Aygar Küçükevci̇li̇oğlu, Rabia Aktaş Karaman
A Study Of The Scattering Analysis Of The Multiplicative Sturm-Liouville Problem, Güler Başak Öznur, Güher Gülçehre Özbey, Yelda Aygar Küçükevci̇li̇oğlu, Rabia Aktaş Karaman
Turkish Journal of Mathematics
The main purpose of this study is to examine the scattering analysis of a multiplicative Sturm-Liouville boundary value problem. Firstly, we find the Jost solution of this problem and give the Jost function to construct the scattering function of the problem. Secondly, we obtain asymptotic equations for Jost solution and investigate some properties of the Jost function. Moreover, we present other solutions of the problem by giving the relations between these solutions and Jost solution. Finally, we define the scattering function of this problem by using the Jost function and examine the basic properties of the scattering function.