Universitatea Națională de Știință și Tehnologie Politehnica București

Exploring Romanian Misinformation with GraphRAG: Community-Level Narratives of COVID-19

Predefined thematic taxonomies can obscure how misinformation narratives emerge, overlap, and change over time. One way to address this limitation is by developing bottom-up data-driven approaches that identify narratives directly from data. We present a pipeline that extracts en...

Integrated Assessment of the Biological Condition of Alosa immaculata in Relation to Microplastics, Organic Contaminants, and Parasites

The pontic shad (Alosa immaculata Bennett, 1835), one of the most economically and ecologically important species for the Danube–Black Sea basin, is affected by a large variety of anthropic and biological pressures. In this study, we aimed to investigate the presence of microplas...

Red-Light-Activated Dual Photocatalytic ATRP of Methacrylates and Acrylates Enabled by Copper Phthalocyanines

Abstract Copper phthalocyanines (Pc) represent a promising yet underexplored class of low-cost and photostable dyes for visible-light-mediated polymerizations. In this study, we demonstrate that copper phthalocyanine (CuPc) and its derivatives efficiently mediate dual photocataly...

Enhanced Bread Shelf Life Using Carboxymethyl Cellulose Composite Films with Combined Antibacterial Activity of Zinc Oxide and Cinnamon Essential Oil

Cellulose is the most abundant natural polymer and is widely used in the packaging industry. One of the primary functions of food packaging is to protect food products from spoilage and extend their shelf life. Although cellulose lacks inherent antimicrobial activity, this limita...

Serial Mediation Pathways Linking Physical Performance to EQ-VAS-Assessed Self-Rated Health in Older Inpatients

Background/Objectives: This study examined patterns of cross-sectional indirect associations involving cognitive status, depressive symptoms, and functional status in the relationship between Tinetti Mobility Test (TMT)-assessed balance and gait performance and self-rated health...

From nutrient intake to socioeconomic factors: what shapes diet quality in pregnancy?

Abstract Background Optimising maternal diet quality is among the most promising targets for public health interventions to improve the health of current and future generations. The aim of this study was to assess the construct validity of the Canadian Pregnancy Diet Quality Inde...

Optimal Curvature Inequalities for Partially Slant Submanifolds in Complex Space Forms

ABSTRACT The class of partially slant submanifolds was introduced recently by Yerlikaya, Poyraz, and Şahin [Mediterr. J. Math. 22 (2025), 78] as a unifying framework for several important slant‐type geometries. In this paper, we establish sharp ‐Casorati inequalities for partiall...

Advancements in Photovoltaic System Operation and Intelligence: Innovations for Enhanced Energy Conversion and Efficiency

Photovoltaic (PV) energy continues to expand its role in modern power systems, accompanied by growing requirements for higher conversion efficiency, more effective energy extraction, accurate power forecasting, reliable grid integration, and improved operation and maintenance [.....

The Effects of Physical and Mind–Body Exercise on Anxiety Among Patients with Breast Cancer: A Systematic Review and Meta-Analysis of Controlled Trials

Background and Objectives: Anxiety is highly prevalent among breast cancer patients and significantly impairs quality of life. Although both conventional physical exercise (PE) and mind–body interventions (MBE) are used in supportive care, their relative efficacy remains unclear....

Detectable, Task-Relevant, or Harmful? Construct-Valid Evaluation of Unlabeled Distribution-Shift Monitoring in Chest Radiography

Distribution-shift alarms do not establish classifier harm. We evaluated the detectability, frozen-head relevance, and performance deterioration of two public DenseNet-121 chest-radiography classifiers under 30 controlled image conditions. Signals covered pixels, 64-component PCA...

Computational Nozzle Design for Pulsed Detonation Thrusters for Vacuum Operations

This study presents the numerical design and optimization of a convergent–divergent nozzle integrated with a pulsed detonation combustor (PDC) operating under reduced outlet pressure conditions. The work builds upon an experimentally validated TRL 4 PDC with demonstrated vacuum o...

Signed Enumeration of Partitions with Exactly k Distinct Magnitudes of Odd Multiplicity

Abstract We introduce and study a family of q -series $$\{A_k(q)\}_{k\ge 0}$$ { A k ( q ) } k ≥ 0 arising from partitions whose distinct parts occur with odd multiplicities. Starting from their finite truncations $$A_{k,m}(q)$$ A k , m ( q ) , we derive several exact formulas exp...

Mechanism-Dependent Effects of the α5 GABAA Receptor Negative Allosteric Modulator Basmisanil on Spatial Memory

Cognitive impairment may arise through multiple pathophysiological mechanisms, including altered GABAergic neurotransmission, cholinergic dysfunction, and neuroinflammation. This study investigated whether basmisanil, a selective negative allosteric modulator of α5-containing GAB...

The two-block odd partition function

Abstract We investigate arithmetic and combinatorial properties of the function a ( n ), which is the signed number of partitions of n into exactly two distinct part sizes, each occurring an odd number of times. We prove that $$a(n)\ge 0$$ a ( n ) ≥ 0 for all n , establishing a p...

Man and the Center of the World: A Short History of the Map

The maps we use today, in navigation apps and on tourist plans of the cities we visit, appear at first sight to be purely utilitarian instruments. This essay argues that the map has never been a neutral representation of the world. From its first appearance it has been a cultural...

The Two Jerusalems: Sacred Space, Utopia and the Contemporary Image

This article brings together three texts that follow a single question from the biblical city to the present: how a community projects an ideal order onto the space it inhabits, and what happens to that projection once its transcendent axis is removed. The first part reads the ea...

Representations of the Sacred in Romanian Visual Art: The Garden, Utopia, the Temple, and the City

This study reads sacred architecture as an open process rather than a finished object, one that begins with the divine prototypes revealed in the Bible (the Garden of Eden, the Tabernacle, the Temple, Jerusalem, and the New Jerusalem) and continues in every encounter between a bu...

Memorials of Abuse: The Holocaust, Communism, and Memorial Ritual in Romania

This article examines the memorial architecture of abuse in Romania, from the Memorial of the Victims of the Holocaust in Bucharest (2009) to the memorials built after 1989 for the victims of communism, and reads them against the commemorative practices that give them meaning. Th...

Neo-Byzantinism, National Identity and the National Cathedral: Monumental Religious Art in Modern and Contemporary Romania

This three-part article examines the encounter between Byzantine visual tradition and modern art in Romania, from the nineteenth century to the mosaics of the National Cathedral in Bucharest. Part I argues that interwar Romania was almost the only Orthodox country to convert the...

The Architecture of Absence: Memorial Architecture in Romania from the Archaic Cross to the Mărășești Mausoleum and Brâncuși's Way of the Heroes

This article examines the origins and the interwar consolidation of memorial architecture in Romania and argues that the Romanian memorial has never lost a latent sacred function inherited from Orthodox ritual. It first distinguishes the monument from the memorial, the former des...