Bilkent University

The Fokas method for linear convection–diffusion equation with time-dependent coefficients and its extension to other evolution equations

Abstract In this paper, we study a linear convection–diffusion equation with time-dependent coefficients on a bounded interval, motivated by associated physical problems. We apply and adapt the unified transform method (UTM), also known as the Fokas method, which handles both tim...

Mesoporous LiMn1–xMxPO4 (M = Ni, Co) Precatalysts by Alcohol-Mediated Self-Assembly: Hydroxide Reconstruction and Suppression of Manganese Degradation for Stable Alkaline Oxygen Evolution

Abstract Manganese is an earth-abundant, low-cost transition metal with considerable potential for sustainable electrocatalysis; however, its poor stability under oxidative alkaline conditions remains a major challenge. Herein, we report the fabrication of Ni(II)- and Co(II)-subs...

Early electrophysiological differentiation of faces and face-like stimuli in pediatric traumatic brain injury

Pediatric traumatic brain injury (PTBI) may disrupt neurodevelopmental systems supporting social perception, including the rapid processing of facial information. Although face perception is essential for social interaction, little is known about how children with TBI process amb...

Feasibility and Prognostic Value of an Ovarian NAR-like Score in Advanced Ovarian Cancer Treated with Neoadjuvant Chemotherapy and Interval Debulking Surgery

Background: Neoadjuvant chemotherapy followed by interval debulking surgery is an established treatment strategy for selected patients with advanced epithelial ovarian cancer. However, simple postoperative prognostic tools integrating pre-treatment disease extent and post-treatme...

Multidimensional Associations Between Psychiatric Symptoms, Sleep Disturbance, Biological Variables, and Fibromyalgia Severity: A Classification and Regression Tree and Path Analysis Study

Background: Fibromyalgia (FM) is a complex chronic pain disorder characterized by interactions among psychological, biological, and clinical factors. Although psychiatric symptoms and sleep disturbance are recognized contributors to disease burden, their multidimensional relation...

Temporal dynamics of numerosity judgments: Liberal responses across different reference numbers in early response onsets

Approximate numerosity judgments allow humans and animals to quickly estimate quantities without verbal processing. This ability obeys Weber's law, which states that the discrimination between two quantities depends on their ratio rather than their absolute difference, making num...

Shame and Pride in Team Contests

ABSTRACT We investigate the effect of shame (due to low performance) and pride (due to high performance) in a team contest. When a player feels more strongly about shame and pride, he exerts higher equilibrium effort, but his teammate exerts lower equilibrium effort, ultimately l...

Blood Pressure and Angina-Related Health Status During Benidipine Therapy: A Multicenter Real-World Cohort Study

Background: Benidipine is a long-acting calcium channel blocker used for the treatment of hypertension and chronic coronary syndrome. Although it effectively lowers blood pressure (BP), the relationship between BP reduction and improvement in angina-related health status during b...

From Vaginismus to Genito-Pelvic Pain/Penetration Disorder: A Bibliometric and Thematic Analysis of the Literature

The reclassification of vaginismus under genito-pelvic pain/penetration ­disorder (GPPPD) in the DSM-5 has reshaped the conceptual framework of female sexual pain disorders, introducing both integration and terminological heterogeneity. This study provides a comprehensive bibliom...

Deep learning for assessing corneal endothelial cell density in patients after descemet membrane endothelial keratoplasty: towards improved evaluation

Descemet membrane endothelial keratoplasty (DMEK) represents a pivotal advance in corneal transplantation, specifically targeting cases of endothelial dysfunction. Postoperative monitoring of endothelial cell density (ECD) is critical for graft health and patient outcomes. Theref...

Mid-Term Outcome of Distal Ureteral Stump after (Hemi)Nephroureterectomy

Aims: The complete removal of the ureter minimises the risk of future morbidity associated with the distal ureteral stump (DUS), including febrile urinary tract infections (UTIs), lower quadrant pain and haematuria – the so-called ureteral stump syndrome (USS). This research eval...