Gabriel Ştefan

Predicting Major Bleeding in Native Kidney Biopsies: From External Validation of the Universal Bleeding Score to a New Clinical Tool

Ana Maria Niculescu, Gabriel Ştefan, Simona Stancu, Otilia Ciurea et autres

Objectives: A percutaneous native kidney biopsy remains the gold standard for diagnosing glomerular, tubulointerstitial and vascular kidney diseases. Although generally safe, it may cause major haemorrhagic complications. Using the French national registry, Kaczmarek et al. developed a simplified bleeding risk score (anaemia, …

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Persistent Haematuria Is Associated With Reduced Kidney Survival in Primary Podocytopathies

Gabriel Ştefan, Nicoleta Petre, Adrian Zugravu, Simona Stancu

AIM: Haematuria is frequently present in podocytopathies, but its significance and prognostic value are not well described. This study aimed to determine the prevalence and association between persistent haematuria and kidney survival in patients with membranous nephropathy (MN), minimal change disease (MCD) …

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SG-UniBuc-NLP at SemEval-2026 Task 6: Multi-Head RoBERTa with Chunking for Long-Context Evasion Detection

Association for Computational Linguistics 2026, Sergiu Nisioi, Gabriel Ştefan

We describe our system for SemEval-2026 Task 6 (CLARITY: Unmasking Political Question Evasions), which classifies English political interview responses by coarse-grained clarity (3-way) and fine-grained evasion strategy (9-way). Since responses frequently exceed the 512-token limit of standard Transformer encoders, we apply an …

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Antinephrin Antibodies in IgAN: Toward a Phenotype-Driven, Personalized Approach

Gabriel Ştefan

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SG-UniBuc-NLP at SemEval-2026 Task 6: Multi-Head RoBERTa with Chunking for Long-Context Evasion Detection

Gabriel Ştefan, Sergiu Nisioi

We describe our system for SemEval-2026 Task 6 (CLARITY: Unmasking Political Question Evasions), which classifies English political interview responses by coarse-grained clarity (3-way) and fine-grained evasion strategy (9-way). Since responses frequently exceed the 512-token limit of standard Transformer encoders, we apply an …

SG-UniBuc-NLP at SemEval-2026 Task 6: Multi-Head RoBERTa with Chunking for Long-Context Evasion Detection

Gabriel Ştefan, Sergiu Nisioi

We describe our system for SemEval-2026 Task 6 (CLARITY: Unmasking Political Question Evasions), which classifies English political interview responses by coarse-grained clarity (3-way) and fine-grained evasion strategy (9-way). Since responses frequently exceed the 512-token limit of standard Transformer encoders, we apply an …

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An Agentic Evaluation Architecture for Historical Bias Detection in Educational Textbooks

Gabriel Ştefan, Adrian-Marius Dumitran

History textbooks often contain implicit biases, nationalist framing, and selective omissions that are difficult to audit at scale. We propose an agentic evaluation architecture comprising a multimodal screening agent, a heterogeneous jury of five evaluative agents, and a meta-agent for verdict synthesis …

An Agentic Evaluation Architecture for Historical Bias Detection in Educational Textbooks

Gabriel Ştefan, Adrian-Marius Dumitran

History textbooks often contain implicit biases, nationalist framing, and selective omissions that are difficult to audit at scale. We propose an agentic evaluation architecture comprising a multimodal screening agent, a heterogeneous jury of five evaluative agents, and a meta-agent for verdict synthesis …

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SG-UniBuc-NLP at SemEval-2026 Task 6: Multi-Head RoBERTa with Chunking for Long-Context Evasion Detection

Gabriel Ştefan, Sergiu Nisioi

We describe our system for SemEval-2026 Task 6 (CLARITY: Unmasking Political Question Evasions), which classifies English political interview responses by coarse-grained clarity (3-way) and fine-grained evasion strategy (9-way).Since responses frequently exceed the 512-token limit of standard Transformer encoders, we apply an overlapping …

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Prognostic value of albuminuria in IgA nephropathy: insights from a real-world cohort

Gabriel Ştefan, Adrian Dorin Zugravu, Simona Hildegard Stancu

Gabriel Ștefan, Adrian Zugravu, Simona Stancu; Prognostic value of albuminuria in IgA nephropathy: insights from a real-world cohort, Clinical Kidney Journ

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Chronic kidney disease in Romania: national adjusted prevalence, risk factors, and temporal trends in high-risk groups

Gabriel Ştefan, Octavian Andronic, Mihaela Daniela Baltă, Ana Maria Alexandra Stănescu et autres

BACKGROUND: Chronic kidney disease (CKD) is a growing global health concern, associated with substantial morbidity and mortality. In Romania, national-level data on CKD prevalence remain limited. This study aimed to estimate the prevalence and risk factors of CKD in Romania using two …

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#2447 Prognostic value of urinary periostin in the frequent primary glomerulopathies of the adult

Nicolae Pană, Ana-Maria Mehedinti, Gabriel Ştefan, Bogdan Obrișcă et autres

Abstract Background and Aims Primary glomerulopathies (GPs) represent a major cause of end stage renal disease and are potentially amenable to disease modifying treatment, but the treatment decisions still rely on invasive histological parameters and on classic serum and urine biomarkers that …

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