Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(77)
- Merdan, Mehmet(73)
- Duran, Celal(54)
- Ozdes, Duygu(50)
- Baltaci, Cemalettin(45)
- Kaygusuz, Abdullah(45)
- Kulakaç, Nurşen(39)
- Ashyralyyev, Charyyar(38)
- Karsli, Orhan(37)
- Demir, Selim(36)
- Öztürk, Serkan(36)
- Dokuz, Abdurrahman(35)
- Turan, Ibrahim(35)
- Araz, Onur(33)
- Kandemir, Raif(31)
- Sipahi, Ferkan(30)
- Topal, Fevzi(30)
- Kurt, Kemal(28)
- Peker, Iskender(28)
- Arslan, Mehmet(27)
- Baltacı, Cemalettin(27)
- Maden, Nafiz(27)
- Ozturk, Samet(27)
- Aydin, Aydanur(26)
- Vural, Alaaddin(26)
- Bayrakdaroglu, Serdar(25)
- Kurnaz, Muammer(25)
- Reis, Hatice Catal(25)
- Akar, Zeynep(24)
- Aydin, Faruk(24)
- Gücer, Mehmet Ali(24)
- Topal, Meryem(24)
- Yolcu, Halil(24)
- Yücel, Cem(24)
- Anaç, Halil(23)
- Kankal, Murat(23)
- Ürkek, Bayram(23)
- Aliyazicioglu, Yuksel(22)
- Günen, Mehmet Akif(22)
- Tuncer, Metin(22)
Yayınlar
- MakaleYalnız künye2026Scopus SJRQ2Selective extraction of rare earth elements from end-of-life NdFeB magnets via low-temperature NH4Cl-based chlorination roasting and water leaching
Kumas, Cavit; Prasetia, Hendra; Sumardi, Slamet; Astuti, Widi; Mufakhir, Fika Rofiek; Daulay, Amru; Wicaksono, Mahruri Arif
Neodymium-iron-boron (NdFeB) magnets are critical components in the transition to a low-carbon energy economy due to their superior magnetic properties. They have significantly higher rare earth element (REE) content (25-35%) compared to natural resources (0.15-2%), making end-of-life NdFeB magnets a valuable secondary REE source. In this study, the selective recovery of REEs from end-of-life NdFeB magnets was investigated using water leaching following chlorination roasting with NH4Cl. A series of experiments was conducted to evaluate the effect of NH4Cl on the NdFeB magnet ratio, roasting temperatures, and roasting duration. Under optimal conditions (300 degrees C, 3 h, NH4Cl at twice the stoichiometric requirement), the roasted products were subjected to water leaching (500 rpm, 90 degrees C, liquid - solid ratio of 20 mL/g, 1 h). resulting in over 95% REE dissolution. Rare earth oxalates were precipitated from the pregnant leach solution with 90% efficiency using 1.5 times the stoichiometric requirement of oxalic acid. Subsequent calcination at 850 degrees C for 2 h yielded rare earth oxides with 99.8% REE purity. Moreover, the dissolution of iron was effectively suppressed through a simple two-stage Fe(OH)3 precipitation step, providing a more economical and selective recovery route. Les aimants de n & eacute;odyme-fer-bore (NdFeB) sont des composants critiques de la transition vers une & eacute;conomie & eacute;nerg & eacute;tique & agrave; faible carbone gr & acirc;ce & agrave; leurs propri & eacute;t & eacute;s magn & eacute;tiques sup & eacute;rieures. Ils ont une teneur en & eacute;l & eacute;ments de terres rares (ETR) sup & eacute;rieures (25-35%) aux ressources naturelles (0.15-2%), ce qui rend les aimants de NdFeB en fin de vie une source secondaire pr & eacute;cieuse d'ETR. Dans cette & eacute;tude, on a examin & eacute; la r & eacute;cup & eacute;ration s & eacute;lective des ETR des aimants de NdFeB en fin de vie par lixiviation aqueuse apr & egrave;s grillage chlorurant avec du NH4Cl. On a effectu & eacute; une s & eacute;rie d'exp & eacute;riences pour & eacute;valuer l'effet du rapport NH4Cl/aimant de NdFeB, des temp & eacute;ratures et de la dur & eacute;e de grillage. Dans des conditions optimales (300 degrees C, 3 h et une concentration de NH4Cl deux fois sup & eacute;rieure & agrave; la st oe chiom & eacute;trie requise), on a soumis les produits grill & eacute;s & agrave; une lixiviation aqueuse (500 tr/min, 90 degrees C, rapport liquide/solide de 20 mL/g, 1 h) conduisant & agrave; une dissolution de plus de 95% des ETR. On a pr & eacute;cipit & eacute; les oxalates de terres rares & agrave; partir de la solution de lixiviation enrichie avec une efficacit & eacute; de 90% en utilisant 1.5 fois la quantit & eacute; st oe chiom & eacute;trique requise d'acide oxalique. Une calcination ult & eacute;rieure & agrave; 850 degrees C pendant 2 h a produit des oxydes de terres rares d'une puret & eacute; de 99.8%. De plus, la dissolution du fer & eacute;tait efficacement supprim & eacute;e par une simple & eacute;tape de pr & eacute;cipitation de Fe(OH)3 en deux phases, offrant une voie de r & eacute;cup & eacute;ration plus & eacute;conomique et plus s & eacute;lective.
- Derleme MakaleAçık Erişim2026Scopus SJRQ1Microplastic Contamination in Amphibians and Reptiles: An Ecotoxicological Synthesis of Exposure, Mechanisms, and Risk Implications
Berber, Ahmet Ali; Akbulut, Cansu; Demir, Sefika Nur; Kurnaz, Muammer
Microplastic (MP) contamination has become a defining feature of twenty-first century environmental change, yet the toxicological and ecological consequences for amphibians and reptiles-two vertebrate classes already facing severe extinction pressures-remain fragmented across taxa, regions, and methodological traditions. Here, we synthesize field and experimental evidence from five continents to provide a taxonomically balanced, mechanistically grounded, and geographically explicit assessment of MP exposure, bioaccumulation, and toxicity in herpetofauna, drawing on a structured literature search in Web of Science, Scopus, and PubMed (January 2015-March 2026). Field detection rates of MPs in amphibian larvae range from 26% in conservatively screened Central European populations to 73-80% in anuran tadpoles from high-anthropogenic-pressure Anatolian catchments, with fibrous polyethylene terephthalate (PET), polyethylene (PE), and polypropylene (PP) particles dominating the detected burden. Mechanistic evidence converges on oxidative stress cascades, hypothalamic-pituitary-thyroid axis disruption, gut and cutaneous microbiome dysbiosis, and compromised antiviral and antifungal immunity, with the latter potentially amplifying vulnerability to Batrachochytrium dendrobatidis and to ranavirus. Among reptiles, sea turtles display near-universal MP ingestion with documented maternal transfer to eggs; freshwater turtles, terrestrial squamates, and crocodilians remain critically understudied. Three structural asymmetries constrain current ecotoxicological risk characterization: taxonomic bias toward anurans and sea turtles, geographic bias toward the Global North, and experimental bias toward acute, supra-environmental laboratory exposures using pristine, single-polymer particles that fail to capture the chemical complexity of weathered field mixtures. We argue that MP burden may warrant consideration as a candidate stressor criterion within IUCN Red List assessments and within environmental risk assessment frameworks for freshwater and terrestrial biodiversity once a robust quantitative relationship between MP burden and demographic decline or population-level fitness has been established, and propose six hypothesis-driven research priorities: methodological standardization, reptile toxicokinetics, transgenerational epigenetics, MP-pathogen microbiome interactions and their translation into population viability models, temperature & times; MP interaction under climate warming, and population-genetic consequences of contemporary MP-driven selection, as the most tractable avenues for ecotoxicological progress and for the development of herpetofauna-specific risk characterization frameworks.
AtıfWoS2OpenAlex2İncele - MakaleAçık Erişim2026Scopus SJRQ4Pan-Immune-Inflammation Value as an Independent Indicator of Isolated Coronary Artery Ectasia
Tunca, Cagatay; Özkan, Mehmet Taha; Ergin, Berin Nur; Gök, Saner Bahadir; Tas, Alperen; Kürklü, Haci Ali; Akbuga, Kursat; Tanik, Veysel Ozan; Özlek, Bulent
Objective: Coronary artery ectasia (CAE) is increasingly recognized as an active inflammatory vascular disorder rather than a benign anatomical variant. The pan-immune-inflammation value (PIV) is a novel biomarker integrating neutrophil, monocyte, platelet, and lymphocyte counts, providing a comprehensive measure of systemic inflammation. This study aimed to evaluate the association between PIV and CAE and to compare their diagnostic performance with that of conventional inflammatory indices. Method: In this retrospective case-control study, 17,538 patients who underwent elective coronary angiography between 2018 and 2024 were screened. A total of 228 patients with isolated CAE and 296 age-, sex-, and Body Mass Index (BMI)-matched controls with normal coronary arteries were included. Hematologic and biochemical parameters were analyzed, and inflammatory indices were calculated. Logistic regression and receiver operating characteristic (ROC) analyses were performed to identify independent predictors and assess diagnostic performance. Results: Patients with CAE had significantly higher PIV levels compared to controls (801.6 [504.4-1301.8] vs. 491.8 [302.4-872.7], P < 0.001). In multivariable logistic regression, log-transformed PIV remained independently associated with CAE (odds ratio [OR]: 1.987, 95% confidence interval [CI]: 1.057-3.737, P = 0.033), along with hypertension, triglycerides, high-density lipoprotein (HDL) cholesterol, and serum creatinine. PIV demonstrated the highest discriminative ability among all inflammatory indices (area under the curve [AUC]: 0.674, 95% CI: 0.623-0.722), and correlated strongly with the Systemic Immune-Inflammation Index (SII), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and Systemic Inflammation Response Index (SIRI) (P = 0.75-0.94). Conclusion: Elevated PIV levels are independently associated with CAE, reflecting the pivotal role of systemic inflammation in its pathogenesis. Given its simplicity and availability, PIV may serve as a practical adjunctive marker for identifying patients at risk of CAE, warranting validation in larger prospective studies.
AtıfWoS4OpenAlex2İncele - MakaleYalnız künye2026Comparative Tactical Paradigmsin Football: Insights FromScandinavian, Baltic, and TurkishCoaching Models
Eroglu, Seref; Toktas, Sermet; Çaglar, Esin Cagla; Ünlü, Cisem; ÇevIker, Abdulkerim; Zambak, Omer
The goal of this study was to compare the tactics expertise paradigms and game-reading skills of elite football coaches with different geographical and cultural back-grounds, based on empirical data. In total, ten elite football coaches participated in the study. All participants had at least 10 years of coaching experience and had either UEFA Pro or A license. Coaches came from the following football federations: Scandinavian (n = 4) , Baltic (n = 3) , and Turkish (n = 3) In order to gather empirical data regarding the knowledge of coaches about theory and methods in cri-sis situation (tacit knowledge), we used the interview form comprising of 25 ques-tions. The Kruskal-Wallis H test results indicated significant differences between groups (p < 0.05) in all aspects of tacti-cal expertise paradigm examined: strate-gic planning, offensive organization, de-fensive transitions, crisis management, and methodological fidelity. Effect sizes calcu-lated for each aspect proved that the mem-bership of the coaches' group (geographi-cal and cultural school) accounted for sig-nificant percentage of variance in their tac-tical expertise (n(2) = 0.777 - 0.86) The results obtained showed that Scandinavian School of coaching prioritized struc-tural discipline and collective intelligence principles, obtaining the highest ratings in strategic planning (4.43) and method-ological fidelity (4.77). Turkish School demonstrated its advantage in crisis man-agement (4.59); however, Turkish coaches were characterized by the lowest rate in methodological fidelity (2.94). As the re-sult, ability of Turkish coaches in tactical improvisation and intuitive expertise con-flicts with system-oriented approach. De-spite obtaining the best score in defen-sive transitions (4.76), the Baltic School demonstrated its reactivity in regards to offensive organization and strategic plan-ning. To conclude, this study showed that tactical expertise is not only a set of tech-nical knowledge, but also the specific cog-nitive scheme that includes geographic and cultural code elements. It can be concluded that distinctive feature of Scandinavian ra-tionalism and Turkish dynamism provides useful theoretical background for hybrid coach models in contemporary football.
- Editöre MektupAçık Erişim2026Scopus SJRQ4Reply to the Letter to the Editor: Enhancing Risk Stratification in Coronary Artery Ectasia: The Synergy of Inflammation and Metabolic Scores
Tunca, Cagatay; Özkan, Mehmet Taha; Ergin, Berin Nur; Gök, Saner Bahadir; Tas, Alperen; Kürklü, Haci Ali; Akbuga, Kursat; Tanik, Veysel Ozan; Ars, Kardiyol Dern
- MakaleAçık Erişim2026THREE LIVERWORT TAXA NEW TO AZERBAIJAN
Erata, Huseyin; Ayhan, Edanur; Mammadova, Aygun Vidadi; Ibadullayeva, Sayyara; Batan, Nevzat
The liverwort taxa Scapania calcicola, Barbilophozia hatcheri, and Porella cordaeana, are reported as new for Azerbaijan, following a recent bryological expedition to the Zagatala, Shabran and Astara of Azerbaijan. Brief descriptions, illustrations, geographic distribution, ecology and comparisons with morphologically similar species are presented.
- MakaleYalnız künye2026Scopus SJRQ2Contralateral DTI-ALPS index as a prognostic biomarker in IDH-wildtype glioblastoma: integrating extent of resection and sex-stratified analyses
Aygün, Tayfun; Keskin, Arif; Palanci, Ozgur; Öztanir, Mustafa Namik; Yücel, Nurullah; Hekimoglu, Gulam
Aim This study aimed to evaluate the independent prognostic value of the contralateral DTI-ALPS index in IDH-wildtype glioblastoma, incorporating tumor morphometry, extent of resection, and sex-stratified analyses within a multivariable framework.Methods A retrospective analysis was performed on 153 IDH-wildtype glioblastoma patients from the publicly available UPENN-GBM dataset. Contralateral DTI-ALPS was calculated using DSI Studio via manual ROI placement; tumor morphometry was derived from expert-annotated segmentation labels using 3D Slicer. Survival analyses included Kaplan-Meier estimation, multivariable Cox regression, time-dependent ROC, restricted cubic spline, and sequential C-index comparison with likelihood-ratio testing.Results The contralateral DTI-ALPS index independently predicted overall survival after adjustment for age, sex, tumor volume, and GTR status (HR = 0.405, 95% CI: 0.227-0.725, p = 0.002). Each one standard deviation increase in DTI-ALPS was associated with a 24.2% reduction in mortality risk. GTR >= 90% (HR = 0.651, p = 0.017) and age (HR = 1.021, p = 0.007) also retained independent significance. DTI-ALPS significantly improved model discrimination beyond age alone (C-index: 0.625 -> 0.653 -> 0.668; likelihood-ratio test p = 0.002). Time-dependent AUC reached 0.741 at 6 months. ALPS-based stratification was more pronounced in the subtotal resection subgroup. Sex-stratified analyses showed numerically stronger associations in females, but formal interaction testing did not confirm effect modification. In an exploratory MGMT subset (n = 57), DTI-ALPS did not retain independent significance after MGMT adjustment.Conclusion The contralateral DTI-ALPS index may provide complementary prognostic information beyond established clinical predictors in IDH-wildtype glioblastoma; however, given the incomplete MGMT methylation data and ongoing methodological debate regarding the biological validity of DTI-ALPS, these findings should be considered exploratory. Prospective validation in cohorts with complete molecular and treatment data is required.
- MakaleAçık Erişim2026Scopus SJRQ1Determinants of healthy orthorexia and orthorexia nervosa: the roles of food security, dietary behaviors, and obesogenic environment
Koçak, Tevfik; Arpa Zemzemoglu, Tuba Eda; Türkkan, Tugba; Bülbül, Kenan; Yilmaz, Birsen
Orthorexia has recently gained attention as a two-dimensional construct centered on a shared health orientation. Recent conceptual developments distinguish healthy orthorexia (HeOr), defined as a non-pathological interest in healthy eating, from orthorexia nervosa (OrNe), characterized by rigid and compulsive food control accompanied by psychological and social impairment. This cross-sectional study investigated the associations of HeOr and OrNe with sociodemographic variables, dietary behaviors, and obesogenic environmental factors, and aimed to identify shared and distinct determinants of these tendencies with 1,015 adults aged 18-65 years. Orthorexia tendencies were assessed using the Teruel Orthorexia Scale. Additional measures included the Sustainable and Healthy Eating Behaviors Scale, Short Screening Questionnaire of Highly Processed Food Consumption, Adult Food Security Survey Module, Food Label Reading Attitude Scale, Food Choice Questionnaire, and the Obesogenic Environment Assessment Scale. In the adjusted regression models, HeOr was positively associated with sustainable and healthy eating behaviors (beta = 0.26), AFSS food-insecurity severity score (beta = 0.11), food label reading attitudes (beta = 0.07), health-related food choice motives (beta = 0.09), natural-ingredient preference (beta = 0.14), weight-control motives (beta = 0.15), ethical food choice motives (beta = 0.10), and obesogenic social determinants and effects (beta = 0.09). Conversely, affordability-related motives (beta = -0.08), emotional appeal (beta = -0.15), familiarity (beta = -0.10), and obesogenic cultural determinants/access to experts (beta = -0.12) were negatively associated with HeOr. For OrNe, positive associations were observed with sustainable and healthy eating behaviors (beta = 0.13), AFSS food-insecurity severity score (beta = 0.17), mood-related food choice motives (beta = 0.13), weight-control motives (beta = 0.26), familiarity (beta = 0.09), ethical food choice motives (beta = 0.18), and obesogenic social determinants and effects (beta = 0.30), whereas health-related food choice motives (beta = -0.12), affordability-related motives (beta = -0.08), and emotional appeal (beta = -0.24) showed negative associations. These findings suggest that orthorectic tendencies are associated with individual health motivations as well as broader behavioral and environmental contexts; however, because of the cross-sectional design, these associations should be interpreted as correlational and hypothesis-generating rather than causal.
- MakaleYalnız künye2026Scopus SJRQ2An integrated process for rare earth elements recovery and silica production from Turkish bauxite-related ores
Uysal, Turan; Erüst, Ceren; Erdemoglu, Murat; Sis, Hikmet
The evaluation of bauxite-associated shales as a secondary source of rare earth elements (REEs) is strategically important for securing a sustainable supply of critical raw materials used in advanced technologies. In this study, shale ore associated with bauxite, unsuitable for aluminium production due to its high silica content, was investigated as a potential resource for valuable REEs. The effect of thermal activation on REE recovery was examined, and the potential use of the leach residue as a silica source was assessed. Based on acid leaching results, the optimum calcination temperature was identified as 700 degrees C. Under these conditions, high REE recoveries were achieved: 92.9% La, 89.9% Ce, 89.0% Pr, 88.7% Nd, and 73.0% Sm. After leaching, the residue was enriched in alumina and silica. To improve silica purity and recover remaining REEs and Al, a second-stage leaching process was applied. This resulted in a byproduct containing 55% SiO2 with a specific surface area of 48 m2 g-1, indicating its potential as a silica source. The results demonstrate that bauxite-associated shale can be sustainably valorised through intensive milling, calcination, and acid leaching, enabling efficient REE recovery and the production of a silica-rich byproduct. L'& eacute;valuation de schistes associ & eacute;s & agrave; la bauxite comme source secondaire d'& eacute;l & eacute;ments de terres rares (ETR) est strat & eacute;giquement importante pour garantir un approvisionnement durable en mati & egrave;res premi & egrave;res critiques utilis & eacute;es dans les technologies avanc & eacute;es. Dans cette & eacute;tude, on a examin & eacute; le minerai de schiste associ & eacute; & agrave; la bauxite, inappropri & eacute; & agrave; la production d'aluminium en raison de sa teneur & eacute;lev & eacute;e en silice, comme ressource potentielle d'ETR pr & eacute;cieux. On a examin & eacute; l'influence de l'activation thermique sur la r & eacute;cup & eacute;ration des ETR et l'on a & eacute;valu & eacute; l'utilisation potentielle du r & eacute;sidu de lixiviation comme source de silice. D'apr & egrave;s les r & eacute;sultats de la lixiviation acide, on a identifi & eacute; la temp & eacute;rature optimale de calcination & agrave; 700 degrees C. Dans ces conditions, on a obtenu des r & eacute;cup & eacute;rations d'ETR & eacute;lev & eacute;es: 92.9% de La, 89.9% de Ce, 89.0% de Pr, 88.7% de Nd et 73.0% de Sm. Apr & egrave;s la lixiviation, le r & eacute;sidu & eacute;tait enrichi en alumine et en silice. Afin d'am & eacute;liorer la puret & eacute; de la silice et de r & eacute;cup & eacute;rer les ETR et l'Al restants, on a appliqu & eacute; une deuxi & egrave;me & eacute;tape de lixiviation. Cela a engendr & eacute; un sous-produit contenant 55% de SiO2 et pr & eacute;sentant une surface sp & eacute;cifique de 48 m2/g, indiquant son potentiel en tant que source de silice. Les r & eacute;sultats d & eacute;montrent que le schiste associ & eacute; & agrave; la bauxite peut & ecirc;tre valoris & eacute; de mani & egrave;re durable par broyage intensif, calcination et lixiviation acide, permettant une r & eacute;cup & eacute;ration efficace des ETR et la production d'un sous-produit riche en silice.
- MakaleAçık Erişim2026Ibn Kammūna's Understanding of Propositions*
Akbay, Yunus Emre; Evmes, Adem; Akyüz, Turgut
The subject of this article is to examine and analyze the understanding of propositions held by Ibn Kamm & umacr;na, who lived in the 13th century, from the perspective of the discipline of logic. Ibn Kamm & umacr;na is a profound thinker who left significant works in the fields of philosophy and logic by thoroughly examining the works of figures such as Ibn Maym & umacr;n, Ibn Sin & amacr;, al-Ghaz & amacr;li, Ab & umacr; al-Barak & amacr;t al-Baghd & amacr;di, Fakhr al-Din al-R & amacr;zi, and al-Suhrawardi. The primary aim of the article is to analyze in detail the manner in which Ibn Kamm & umacr;na approaches propositions, drawing upon the works he authored on matters of logic. The scope of the article is confined to al-Jad & imacr;d f & imacr;'l-hikma, Sharh al-us & umacr;l wa'l-jumal, and Sharh at-talw & imacr;h & amacr;t, which are among Ibn Kamm & umacr;na's works containing data on the subject of propositions, and within the context of these works, the definition of the proposition, categorical propositions, conditional propositions, modal propositions, the contradiction and conversion of propositions are comprehensively addressed. The literature review conducted revealed that the philosopher has been examined to a considerably limited extent in our country from the standpoint of logic, and this study is considered to make a significant contribution to remedying the aforementioned deficiency. A qualitative research methodology was adopted in the article, and techniques of analysis and comparison were employed. It is known that Ibn Kamm & umacr;na, unlike authors such as Aristotle, al-F & amacr;r & amacr;bi, and Ibn Sin & amacr;, did not compose an independent work on propositions. For this reason, approximately sixteen works that have survived to the present day were meticulously examined through an individual scanning method, passages related to the subject of propositions within the context of the three identified works were recorded, and the data obtained were systematically classified and analyzed. As a result, it has been demonstrated that Ibn Kamm & umacr;na's treatment of propositions draws substantially from the Peripatetic tradition through Ibn Sin & amacr;. Ibn Kamm & umacr;na shares a common view with Ibn Sin & amacr; on the matter of indefinite propositions and explicitly states that such propositions ought to be understood as particular. Furthermore, he addresses propositions holistically on the subject of modality without making a distinction between simple and composite; and emphasizes that there is no limitation with respect to the number of modal propositions and
- Editöre MektupYalnız künye2026Scopus SJRQ1Response to the Letter to the Editor: Lateral Crural Mid-Down Flap Technique in Primary Rhinoplasty
Kaderi, Sina; Ekinci, Can; Karabagli, Yakup
- MakaleAçık Erişim2026Scopus SJRQ3Semianalytical Solutions of a Caputo-Fabrizio Fractional Epidemic Model via the q-Kushare Homotopy Transform Method
Alkan, Asli; Anaç, Halil
In this study, an enhanced semianalytical framework is developed for solving nonlinear fractional differential equations involving the Caputo-Fabrizio fractional operator. The proposed Caputo-Fabrizio q-Kushare homotopy analysis transform method (CFq-KHATM) combines the Caputo-Fabrizio derivative, Kushare transform, and q-homotopy analysis within a unified operator-consistent framework. Unlike conventional hybrid approaches, the method preserves the nonsingular exponential memory structure of the Caputo-Fabrizio derivative and provides additional convergence-control flexibility through the auxiliary parameter & hbar; and q-deformation parameter n. To demonstrate its applicability, a Caputo-Fabrizio fractional epidemic model with memory-dependent transmission dynamics is investigated. Numerical simulations for different fractional-order values show that memory effects significantly influence epidemic evolution, infection persistence, and environmental viral dynamics. Furthermore, comparisons with existing methods together with absolute and relative error analyses confirm the accuracy, stability, and convergence efficiency of the proposed framework. The obtained results indicate that CFq-KHATM is a flexible and computationally reliable tool for nonlinear fractional epidemic systems and other memory-dependent dynamical models.
- MakaleAçık Erişim2026Scopus SJRQ3Comparison of Radiologic and Clinical Results of Short-Long Level Posterior Fusion in Lenke Type 5C Scoliosis
Tas, Suleyman K.; Aydin, Abdurrahman; Yetkin, Cem; Albayrak, Akif; Kaygusuz, Mehmet A.
Background: Lenke type 5C scoliosis is treated surgically with long-segment (nonselective) or short-segment (selective) level fusion. For Lenke type 5C scoliosis, no standardized criteria exist for selecting proximal and distal fusion levels. Studies report that short-segment level fusion patients with correct patient selection have a direct effect on the result of a well-balanced spine. Purpose: To compare the midterm and long-term radiologic and clinical outcomes of short-segment (selective) vs long-segment (nonselective) fusion in Lenke type 5C scoliosis. Design: Retrospective cohort study. Patient sample: This retrospective study evaluated patients who underwent posterior instrumentation for Lenke type 5C adolescent idiopathic scoliosis (AIS) at our institution between 2005 and 2016. Outcome measure: Physiologic measures: radiological evaluations included coronal, sagittal, and spinopelvic balance assessments as well as shoulder balance parameters on X-ray. Functional measures: clinical evaluations were performed using the SF-36 and SRS-22(r) scores. Methods: Patients with Lenke type 5C scoliosis who underwent selective (group 1) or nonselective (group 2) instrumentation were retrospectively analyzed. Group 1 included 47 patients (42 females and five males) with a mean age of 16.1 +/- 2.4 year (range, 12-22), and group 2 included 58 patients (53 females and five males) with a mean age of 16.3 +/- 3.4 yr (range, 12-24; P > .05). Radiological evaluations included coronal, sagittal, and spinopelvic balance assessments, as well as shoulder balance parameters. Clinical evaluations were performed using SF-36 and SRS-22(r) scores; results were compared between the two groups. Results: Both groups exhibited similar results in terms of coronal, sagittal, and spinopelvic balance as well as shoulder balance in many data after surgery (P > .05). Clinical outcomes, assessed via SF-36 mental health and SRS-22(r) scores, did not show statistically significant differences between groups (P > .05), except fort the physical role difficulty domain of the SF-36, where the selective fusion group (77.1 +/- 31.6) showed significantly better scores than nonselective group (58.2 +/- 36.1). However, the mean surgical time and transfusion requirement were significantly lower in the selective fusion group. Conclusion: When appropriately applied, selective fusion achieves comparable radiologic and clinical outcomes to nonselective fusion, with the added advantages of shorter surgical time and lower transfusion requirements.
- MakaleYalnız künye2026Scopus SJRQ1An insight of oil protection theory: Survival, structural and metabolic adaptation of Salmonella enterica Enteritidis Phage Type 30 in three triglycerides
Zhao, Huan; Sun, Rui; Cao, Shidi; Ozturk, Samet; Erdogdu, Ferruh; Liu, Xingyi; Liu, Shuxiang
Oil protection theory posits that oil enhances microbial survival and heat resistance in low-moisture foods, yet the role of triglyceride composition remains poorly defined. This study investigates how Salmonella enterica Enteritidis PT 30 adapts during desiccation in peanut oil (mixed triglycerides, aw,25 degrees C = 0.30) and two representative components, namely, trilinolein and glyceryl trioleate. The lipid-specific structural and metabolic adaptations were analyzed through confocal microscopy and transcriptomics. S. Enteritidis exhibited the lowest persistence (3.43-log reduction over 180 days) and weakest heat resistance (2.5 h at 80 degrees C to achieve 3.5-log reduction) in peanut oil. The survival of S. Enteritidis in triglycerides could be correlated with its metabolic dormancy via suppression of ribosomal and oxidative phosphorylation pathways. Trilinolein enhanced S. Enteritidis' heat resistance (30 h at 80 degrees C for 3.5-log reduction) and moderate storage mortality (1.64-log reduction at 180 d), driven by stress hyperactivity. Glyceryl trioleate balanced heat tolerance (8 h) with optimal storage survival (1.19-log reduction), mediated by partial metabolic suppression. Peanut oil preserved S. Enteritidis transient motility in water-rich microenvironments, while pure triglycerides formed compact, dehydrated aggregates. Transcriptomics identified divergent strategies. Peanut oil induced dormancy at the expense of stress resilience, whereas homogeneous lipids imposed distinct constraints; that is, trilinolein amplified oxidative stress, and glyceryl trioleate intensified desiccation. These findings refine oil protection theory, demonstrating that lipid heterogeneity-not just low water activity-shapes microbial outcomes. The mixed components of peanut oil buffer stress but limit protective efficacy, while its purified constituents reveal how specific triglycerides modulate survival. This mechanistic understanding advances theoretical models of pathogen persistence in oily matrices and guides targeted strategies to mitigate risks in low-moisture oil-rich food systems.
AtıfWoS5OpenAlex5İncele - MakaleAçık Erişim2026Scopus SJRQ4Corynebacterium in Granulomatous Mastitis: Clinical Features and Treatment Outcomes
Tepe, Dilsat; Ulusahin, Mehmet; Kula, Sibel; Yilmaz, Gurdal
Objective: Granulomatous mastitis (GM) is a chronic inflammatory breast disease with a heterogeneous clinical presentation and uncertain optimal management. Increasing evidence suggests a role for Corynebacterium species, particularly Corynebacterium kroppenstedtii, in its pathogenesis. This study aimed to evaluate the clinical characteristics, treatment strategies, and outcomes of granulomatous mastitis, with particular emphasis on cases associated with Corynebacterium species and the impact of antibiotic therapy. Materials and Methods: This retrospective cohort study included female patients with GM treated at a university hospital between January 2018 and January 2023. Patients were grouped according to Corynebacterium isolation. Clinical characteristics, microbiological findings, and treatment modalities-oral steroids, combined antibiotic-steroid therapy, antibiotics with intralesional steroids, and segmental mastectomy-were evaluated. The impact of lipophilic antibiotics (tetracyclines, linezolid, rifampin) combined with steroids was assessed. Recurrence rates and associated factors, including symptom duration, were analyzed. Results: A total of 165 patients were included in the study, of whom 25 tested positive and 140 negative. Corynebacterium spp. were detected in 15.15% of cases, with C. kroppenstedtii identified in 8.48%. Patients with Corynebacterium-associated GM had more extensive abscess formation and required more interventional procedures. Multimodal treatment strategies combining steroids, antibiotics, and surgery resulted in favorable outcomes. Lipophilic antibiotics combined with steroids showed a positive but statistically non-significant effect. Recurrence occurred in 16.4% of patients and was associated with longer symptom duration. Conclusion: Accurate microbiological identification is essential in GM, particularly in C. kroppenstedtii infections, to guide targeted antibiotic therapy and reduce recurrence. Tailored management strategies, including lipophilic antibiotics, may improve outcomes. Further studies are needed to define optimal treatment duration and the role of surgery in refrac-GM.
- MakaleAçık Erişim2026An ergogenic approach to enhancing performance in archery: the acute effects of caffeine
Türker, Ustun; Ates, Zeynep Hazal; Görgülü, Mumine; Kiyici, Fatih; Bayrakdaroglu, Serdar
Background and Study Aim Ergogenic aids are widely used to enhance exercise performance and training adaptations. Among these, caffeine is recognized for its stimulatory effects on the central nervous system and neuromuscular function. Despite their widespread use, the relative effectiveness of such aids in improving performance in precision-based target sports such as archery remains a matter of practical interest. This study aimed to examine the effects of acute caffeine supplementation on shooting performance in university-level archers. Material and Methods A total of 12 licensed university archers (mean age: 22.92 +/- 2.11 years) participated in this study. A single-group pretest-posttest experimental design was employed. Participants completed two laboratory sessions separated by 72 hours under standardized conditions. In each session, anthropometric and hearing assessments were conducted. This was followed by the ingestion of 200 mg of caffeine. After a 60-minute absorption period, archers performed shooting tests at 18 meters. The protocol included practice trials and 10 sets of scoring shots. Data were analyzed using paired-samples t-tests and repeated-measures ANOVA. These methods accounted for within-subject variability across sets. Statistical significance was set at p < .05. Results Posttest scores were consistently higher than pretest scores across most sets. Statistically significant improvements were observed in Sets 2, 3, 4, 6, 8, 9, and 10 (p < .05). Sets 1, 5, and 7 showed nonsignificant differences. Overall performance increased significantly from 6.61 +/- 1.20 to 8.33 +/- 0.39 (p < .001), with a large effect size (Cohen's d = 1.90; eta 2 = .50). Repeated-measures ANOVA revealed a significant main effect of condition (p < .001). No significant set or interaction effects were found. This indicates that performance improvements were consistent across shooting sets. Conclusions Acute caffeine supplementation was associated with improved shooting performance in university-level archers. The findings suggest that caffeine may have potential as an ergogenic aid in precision-oriented sports requiring sustained attention and performance consistency. However, the results should be interpreted with caution due to methodological limitations. These include the absence of a control condition and the small sample size. Further randomized placebo-controlled studies are needed to confirm and extend these findings.
- MakaleYalnız künye2026Scopus SJRQ2Shared burdens: An Interpretative Phenomenological Analysis of couples facing infertility
Muslu, Ozge Nur; Uluç, Sait
This study explores the psychological and emotional impacts of infertility treatments on couples. Utilizing Interpretative Phenomenological Analysis, this qualitative research delves into the shared experiences of five couples undergoing fertility treatments, uncovering the deep-seated personal and relational dynamics of their journeys. Three key themes were identified: From Hope to Exhaustion: Navigating the Emotional Rollercoaster of Treatment, Redefining Togetherness: Making Sense of Infertility as a Couple, and Networks of Care: Negotiating Support Within and Beyond the Couple. Study explores how couples undergoing in vitro fertilization construct shared meaning around their experiences and how the process shapes their relational and psychological dynamics. This study adopts a couple-based interpretative phenomenological approach to reveal how partners co-construct meaning, manage shared distress, and experience relational growth during infertility treatment. It offers new insights into the dyadic processes that foster resilience amid infertility.
- MakaleYalnız künye2026Scopus SJRQ1A comparison of the effects of different light intensities on the current-voltage characteristics of the Si3N4 interface with various thicknesses grown on the (Au: Ti)/n-GaAs (MS) structure
Bucurgat, Mahmut; Özdemir, Ahmet Faruk; Altindal, Semsettin
Different thicknesses of Si3N4 insulator layers were grown on an (Au: Ti)/n-GaAs (MS) reference structure to analyze the effect of these layers with/without illumination on the electrical characteristics and compare the results between these structures. With this motivation, current measurements were made as a function of voltage over +/- 3 V, either in the dark or at 20-100 mW cm- 2 illumination with an increment of 20 mW cm- 2. Some important electric and optoelectronic parameters, such as barrier height at zero bias, ideality factor, saturation current at reverse bias, photosensitivity, photoresponsivity, and detectivity, have been determined using currentvoltage data in relation to illumination intensity. To compare the calculation methods used, the basic electrical parameters, the barrier height at zero bias, the ideality factor, and the series resistance were calculated first using the Thermionic Emission Method and then, alternatively, using Cheung functions. Additionally, the dependence of energy of the interface states was investigated using forward bias current voltage data with the ideality factor and barrier height with/without different intensities of illumination, because of their reordering/restructuring in electric field effects and illumination. The voltage-dependent characteristics of resistance of these structures were also determined from Ohm's Law for each illumination intensity.
AtıfWoS6OpenAlex5İncele - MakaleYalnız künye2026Scopus SJRQ2How does social capital affect the relationship between perception of diversity management and affective commitment?
Yilmaz Atik, Emine; Özbek, Mehmet Ferhat
PurposeThe aim of this study is to reveal the moderating effect of social capital in the relationship between employees' perceptions of diversity management and their affective commitment.Design/methodology/approachThe research hypotheses developed within the relevant literature framework are tested by using data that was obtained from the academic staff members who work at the Turkish universities.FindingsThe findings indicate that the relationship between perceptions of diversity management and affective commitment, considered in the dimensions of social capital such as participation in the local community, socio-proactivity, family and friendship relationships, tolerance for diversity, work relationships, quality of life and trust, vary according to strong and weak levels, supporting moderating hypotheses at various levels.Research limitations/implicationsOne of the significant limitations of the study is the reluctance of the sampled academicians to participate in a study related to diversity during the data collection process. Some academicians, in addition to express that they do not tolerate the diversity among employees within the organization, also decline to answer questions which are aimed at measuring these expressions.Practical implicationsThe study reveals that the perception of diversity management increases affective commitment. This finding suggests that managers should consider employees' perceptions of these policies rather than focusing solely on diversity management policies (Alshaabani and Rudnak, 2020: 2; Saleem et al., 2021: p. 1). In societies with collectivist cultures like T & uuml;rkiye, managers' practices become more important in strengthening employees' affective commitment (Wasti, 2000; Wasti, 2003). For employees to have positive perceptions of diversity management, managers should respect their identities, use inclusive language and form a positive diversity climate (Deepak and Perwez, 2019: p. 909). Furthermore, the audits evaluating diversity management practices should be conducted frequently (McKay and Avery, 2015: 334). However, the impact of employees' perceptions of diversity management on affective commitment may vary depending on employees' levels of social capital. Therefore, the organizations need to develop policies based on employees' levels of social capital. Orientation and mentoring programs should be implemented to facilitate the integration of employees with weak social relationships into the organization. The employees with strong social relationships should be guided toward social activities and club activities to capitalize on their strengths. The human resources department should develop some personalized programs for these employees.Social implicationsThe literature states that the perceptions and environment regarding diversity management have stronger relationships with attitudinal results rather than behavioral results (Holmes et al., 2020). The research findings support the literature in terms of showing that perception of diversity management have an impact on affective commitment. The collectivist cultural structure of the Turkish society (Sargut, 2001: p. 185) has an impact on the process of acquiring social capital. It is emphasized that the societal structure influences the behaviors exhibited by employees toward the organization. This study shows that the social capital of academics plays a partially moderating role in the relationship between perception of diversity management and affective commitment. When such dimensions of social capital as family and friendship relationships, socio-proactivity, work relations and tolerance for diversity are included in the relationship between the perception of diversity management and affective commitment, the direction and magnitude of the existing relationship change. Based on these results, it can be argued that their social capitals, which are formed based on secondary relationship types like friendship and acquaintance, contribute to the external social capital potential. In this aspect, the study is considered to contribute to the literature that highlights T & uuml;rkiye's high potential for external social capital (Bu & gbreve;ra, 1998; Oba and Semerci & ouml;z, 2004; & Ouml;zen and Aslan, 2006). In addition, it is fixed that socio-proactivity, family and friendship relationships, tolerance for diversity and work relationships, as the dimensions of social capital, have a negative moderating effect on the relationship between the perception of diversity management and affective commitment. These findings have determined the validity of the negative effects of social capital referred to as the dark side of social capital in the literature in the context of T & uuml;rkiye (Gargiolu and Bennasi, 1999; Gordon, 2020: 487; Lo and Fan, 2020: 27; Alcorta et al., 2020: 445).Originality/valueThe original value of this study is that the authors assume that the direction and magnitude of the relationship between the perception of diversity management and affective commitment are to be shaped according to the dimensions of social capital. In addition, it reveals that the affective commitment of employees can be shaped by social capital rather than perception of diversity management.
- MakaleYayıncıda açık erişim2026What is the Contribution of Green Innovation and Digitalization to Economic Growth: Analyzing the Role of Geopolitical Risks and
Agirkaya, Melahat Batu; Akyol, Hikmet
This research examines the impact of green innovation and digitalization on economic growth in Brazil, Russia, India, China, South Africa, and T & uuml;rkiye (BRICS+T) during the period 2002-2021. Within this framework, it analyzes the role of geopolitical risks and climate policy uncertainty. The relationships between variables were estimated using Pooled Bewley (CPS-BP), Dynamic Least Squares Mean Group (DOLS-MG), Fully Modified Least Squares (FMOLS), Canonical Cointegrated Regression (CCR), and Dynamic Least Squares (DOLS) estimators. Our results show that green innovation, digitalization, information technologies, infrastructure investments, life expectancy at birth, and US-originated climate policy uncertainties positively impacted economic growth. Increased geopolitical risks hindered growth in BRICS+T countries.