Results 141 to 150 of about 25,284 (313)

Recent Advances in the Synthesis of the Marine-Derived Alkaloid Fascaplysin and Its Metabolites Homofascaplysins A–C

Molecules
The fascaplysin and homofascaplysin class of marine natural products has a characteristic 12H-pyrido[1,2-a:3,4-b′]diindole pentacyclic structure. Fascaplysin was isolated in 1988 from the marine sponge Fascaplysinopsis bergquist sp.
Ramana Reddy Mittapalli, Harshita Kumari
doaj   +1 more source

Pseudonyms, Propaganda, and Prints: The Life and Political Caricatures of William Dent, 1782–931

Journal for Eighteenth-Century Studies, EarlyView.
Abstract ‘Dent was probably an amateur and nothing is known of his life’, state Bryant and Heneage. Despite contributing to caricature's ‘golden age’, William Dent remains overlooked compared to contemporaries like James Gillray. Dent's extensive portfolio (1782–93) and rumoured role as a Pittite propagandist have not secured his place in the canon of ...
Callum D. Smith
wiley   +1 more source

Between the Indian Ocean and the Gulf: Ceramics From Ḥattā Oasis in the Emirate of Dubai

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT This study presents the ceramic finds from archaeological investigations conducted in 2024 at two settlements: ‘Islamic Village' and Suhaila 2, one of a number of mountain villages of the Late Islamic period within the Ḥattā Oasis: a high‐altitude exclave in the Emirate of Dubai. The sites are located on the northeastern slopes of Jabal Qallāt
Seth M. N. Priestman, Agnese Kukela, Mansour Boraik, Hassan Mohammed Zein   +3 more
wiley   +1 more source

An expert-curated dataset of glass sponges (Porifera, Hexactinellida) distribution across the Atlantic and Arctic OceansZenodo

Data in Brief
Glass sponges (Porifera, Hexactinellida) are key habitat-forming organisms in deep-sea ecosystems, yet their diversity and distribution remains poorly understood.
Celso Domingos, Ana Sofia Soares, Andreu Santín, Joana R. Xavier   +3 more
doaj   +1 more source

Biometric Analysis of Giant and Large Murid Remains From Matja Kuru 2, Timor‐Leste

Archaeometry, EarlyView.
ABSTRACT Published research on Matja Kuru 2 (MK2) demonstrates its significance for understanding human lifestyle during the terminal Pleistocene and Holocene. Murids represent the most commonly identified taxa in the site, with specimens preliminarily classified as small, large and giant based on size comparisons.
Sarah Hannan, Sofia C. Samper Carro, Sue O'Connor   +2 more
wiley   +1 more source

Response of Remote Tropical West Pacific Islands to Climate Variability: A Multiproxy Record From T‐Lake, Palau, Spanning the Early Holocene to Present

Archaeometry, EarlyView.
ABSTRACT Lake sediments are natural archives of past environmental dynamics and how these systems have responded to past climate variability. Sediment geochemistry, governed by local geology and climate processes, is unique to each lake‐catchment and geochemical proxies must be validated for each study site.
Jalene Nalbant, Larissa Schneider, Jessica L. Blois, Matthew Wolhowe, Julian P. Sachs, Simon G. Haberle, Geoffrey Clark   +6 more
wiley   +1 more source

Nanostructural organization of naturally occurring composites - part II: silica-chitin-based biocomposites

, 2012
Investigations of the micro- and nanostructures and chemical composition of the sponge skeletons as examples for natural structural biocomposites are of fundamental scientific relevance.
Worch, Hartmut, Bazhenov, Vasily V., Mertig, Michael, Janussen, Dorte, Simon, Paul, Born, René, Hanke, Thomas, Vournakis, John N., Heinemann, Sascha, Ehrlich, Hermann, Shapkin, Nikolay P., Erler, Christiane   +11 more
core   +1 more source

Application of Multi‐Method Dating for Understanding the Gravettian North of Moravia, Central Europe

Archaeometry, EarlyView.
ABSTRACT This article presents the results of integrating three methods to assess the age of the Upper Palaeolithic site of Pietraszyn 11 (SW Poland), close to the Moravian Gate. Sediment chronology determined using optically stimulated luminescence produced promising, yet ambiguous results (51.0 ± 3.7 to 20.3 ± 0.7 ka).
A. Wiśniewski, B. Bujalska, D. Popović, M. Baca, K. Zarzecka‐Szubińska, A. Lemanik, M. Hein, S. Talamo, P. Moska, H. Fewlass, D. Tokarz, Z. Jary, B. Przybylski, D. Bobak, M. Połtowicz‐Bobak, K. Wertz, A. Nadachowski   +16 more
wiley   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

Invertebrados bentónicos marinos de la Antártida: ecología química, bioactividad y biodiversidad [PDF]

, 2012
[spa] Esta tesis cubre diferentes aspectos de los invertebrados marinos bentónicos de la Antártida. Se trata de una tesis multidisciplinar presentada en formato artículos en la que se hacen las siguientes aportaciones: (i) por un lado se hace una ...
Taboada Moreno, Sergi
core