Results 21 to 30 of about 741 (162)
Advanced Optical Materials, Volume 14, Issue 35, 18 September 2026.Central and terminal ring fusions of per‐peri‐perbenzo[7]helicene (PB[7]H) yield novel helical polycyclic aromatic hydrocarbons (HPAHs). The migration of Clar's aromatic sextets governs the inner‐rim stiffness. This topology‐directed strategy bridges the discrete optical gaps of homologous series. Transition moment density (TMD) analysis visualizes the
Zhibo Liu +3 more
wiley +1 more source
Cancer Medicine, Volume 15, Issue 8, August 2026.ABSTRACT Background and Objectives Smoking is a major modifiable risk factor for upper gastrointestinal cancers (UGIC), particularly in China. This study investigated temporal trends, demographic patterns, and future projections of smoking‐attributable UGIC mortality globally and nationally.
Yunhao Li +4 more
wiley +1 more source
Food Science &Nutrition, Volume 14, Issue 8, August 2026.Integrative analysis of plasma miRNA data (GSE235203) and BM‐MSC transcriptomic data (GSE110359), combined with database‐derived VE/tocopherol target mapping, prioritized SOD1, GCLC, PTGS1, PTGS2, and KDR. Single‐cell localization, CellChat analysis, structural simulation, NHANES contextualization, and GSE286204 supported hypothesis‐generating links to
Ying Ma +8 more
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Into the Black Box: Explicating Black Boxes and Its Effect on Mechanistic Reasoning
Journal of Research in Science Teaching, Volume 63, Issue 4-5, Page 412-432, May 2026.ABSTRACT Mechanistic reasoning is a powerful and vital approach for science students to explain scientific phenomena. Current research on students' mechanistic reasoning aims to enhance unpacking, that is, the identification and description of entities at lower scalar levels.
Gur Arie Livni Alcasid +1 more
wiley +1 more source
ENZYMATIC HYDROXYLATION OF BENZOPYRENE AND ITS RELATIONSHIP TO CYTOTOXICITY [PDF]
Proceedings of the National Academy of Sciences, 1969 Aryl hydrocarbon hydroxylase, an inducible microsomal enzyme system, has been measured in cultures of normal and transformed hamster, mouse, and human cells. In order to determine the highest level of enzyme, the cells were induced by pretreatment with benz(a)anthracene.
H V, Gelboin, E, Huberman, L, Sachs
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European Journal of Soil Science, Volume 77, Issue 3, May–June 2026.ABSTRACT The dynamics of soil organic matter (SOM) and humic acids (HA) in a permanent and seasonal wetland located in southeastern Brazil (hydromorphic soils and gramineous vegetation) were assessed through thermogravimetry, evolved gas analysis, and analytical pyrolysis. The n‐alkane series in all samples spanned from C13 to C35, regardless of season,
Karen Luko‐Sulato +5 more
wiley +1 more source
Toxicokinetics and Bioaccumulation of Polycyclic Aromatic Compounds in Wood Frog Tadpoles (Lithobates sylvaticus) Exposed to Athabasca Oil Sands Sediment [PDF]
, 2017 Many polycyclic aromatic compounds (PACs) are toxic, carcinogenic, and mutagenic. As a result, their effects on aquatic biota and ecosystems are of great concern.
Bilodeau, Julie
core +1 more source
Prevention of 3,4-Benzopyrene carcinogenesis in presence of putrescine
Zeitschrift f�r Krebsforschung und Klinische Onkologie, 1976 The 3,4-Benzopyrene (3,4-BP) carcinogenesis can be postponed or even completely inhibited in the presence of Putrescine (P). A single s.c. injection of 2.52 mg 3,4-BP in 0.5 ml tricaprylin on female mice (NMRI-strains, 4--5 weeks old, 20--25 g of body weight) induced locally malignant tumors (sarcomas and carcinomas) up to 97% of the animals treated ...
Kallistratos, G., Fasske, E.
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ChemistryEurope, Volume 4, Issue 4, April 2026.A pyrene‐extended azahelicene delivers proton‐switchable NIR absorption, fluorescence quenching, and reversible chiroptical responses (circular dichroism (CD)/circularly polarized luminescence (CPL)), together with efficient singlet oxygen generation (SOG), making it a promising proton‐responsive photofunctional system.
Sudeep Sarkar +9 more
wiley +1 more source
Oral Squamous Cell Carcinoma‐Risk Factors, Diagnosis, Treatment, and Prevention
Cancer Nexus, Volume 2, Issue 2, April 2026.ABSTRACT Oral squamous cell carcinoma (OSCC) usually originates from the precancerous lesions of oral mucosa and accounts for approximately 90% of oral cancers. In‐depth understanding of pathogenesis, hallmarks, and etiological factors is a crucial prerequisite for advancing the diagnosis and treatment for OSCC patients. This review aims to present the
Liping Wang +4 more
wiley +1 more source