Results 21 to 30 of about 29,783 (290)

Investigating Technological Changes in Copper-Based Metals Using Portable XRF Analysis. A Case Study in Sicily

Open Archaeology, 2017
The introduction of copper-based metals in Sicily appears to have been a particularly late and slow process. A program of pXRF analyses on early metals in Sicily has revealed the use of mostly copper, and a very late introduction of tin.
Vianello Andrea, Tykot Robert H.
doaj   +1 more source

The Three Age System in English: new translations of the founding documents

Bulletin of the History of Archaeology, 2004
The Stone – Bronze – Iron framework for ordering archaeological artifacts and epochs emerged in Denmark and southern Sweden in the years 1835–43, and is justly considered one of the defining developments in the origins of ...
Peter Rowley-Conwy
doaj   +1 more source

Prevalence, Determinants, and Outcomes of Low Disease Activity and Remission Attainment in Patients With Systemic Lupus Erythematosus That Is Clinically Active

Arthritis Care &Research, EarlyView.
Objective This study aimed to identify in patients with systemic lupus erythematosus (SLE) with clinically active disease the attainment of frequency and determinants of Lupus Low Disease Activity State (LLDAS) and Definition of Remission in SLE (DORIS) and the frequency and determinants of flare and damage accrual after target attainment.
Yanjie Hao, Dylan Hansen, Rangi Kandane‐Rathnayake, Worawit Louthrenoo, Yi‐Hsing Chen, Jiacai Cho, Aisha Lateef, Laniyati Hamijoyo, Shue Fen Luo, Yeong‐Jian Jan Wu, Sandra Navarra, Leonid Zamora, Zhanguo Li, Sargunan Sockalingam, Yasuhiro Katsumata, Masayoshi Harigai, Zhuoli Zhang, Madelynn Chan, Jun Kikuchi, Tsutomu Takeuchi, Sang‐Cheol Bae, Fiona Goldblatt, Sean O'Neill, Kristine (Pek Ling) Ng, Annie Law, B. M. D. B. Basnayake, Nicola Tugnet, Sunil Kumar, Cherica Tee, Michael Tee, Naoaki Ohkubo, Yoshiya Tanaka, Shirley Chan, C. S. Lau, Vera Golder, Alberta Hoi, Shereen Oon, Eric Morand, Mandana Nikpour, for the Asia‐Pacific Lupus Collaboration   +39 more
wiley   +1 more source

THREE BRONZE AXES WITH WOODEN HAFT RE-MAINS FROM ESTONIA; pp. 3–19 [PDF]

Eesti Arheoloogiaajakiri, 2018
Estonian Bronze Age bronze artefacts are almost always discovered as stray finds without a datable context or associated samples that would enable absolute dating. Their age estimates are based on better dated parallels from elsewhere in Europe.
Kristiina Paavel, Aivar Kriiska, Valter Lang, Alexander Kulkov   +3 more
doaj   +1 more source

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

Advanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt, Jens Timmer, Elisabetta Ada Cavalcanti‐Adam   +2 more
wiley   +1 more source

Ionic Control of Microstructure and Lubrication in Charged, Physically Cross‐Linked Hydrogels

Advanced Functional Materials, EarlyView.
Here, charged, physically cross‐linked poly(methacrylamide‐co‐methacrylic acid) hydrogels stabilized by a short‐range attractive, long‐range repulsive potential is investigated. This work uncovers how salt addition alters not only swelling, but also the microstructure and dynamics, near‐surface stiffness and charge, and ultimately, its lubricity. Salts
Alexander Deptula, Rosa M. Espinosa‐Marzal   +1 more
wiley   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

Interconnected Porous Hydrogels with Tunable Anisotropy Through Aqueous Emulsion Bioprinting

Advanced Functional Materials, EarlyView.
A 3D bioprintable microporous bioink is developed using an aqueous two‐phase system (ATPS) composed of extracellular matrix (ECM) mimetic biopolymers. The ATPS bioink enables the fabrication of interconnected porous architectures with up to 70% porosity, supporting long‐term cell viability and 3D cell alignment, enabling a simultaneous generation of ...
Hugo Edgar‐Vilar, Francisca P. Correia, Inês M. Freitas, Vítor M. Gaspar, João F. Mano   +4 more
wiley   +1 more source

Une coopération franco-chinoise : les fouilles du site de Gongying

Archéopages, 2010
Chinese archaeology developed independently of Western influence. China's opening-up to international trade also produced changes in how Chinese archaeologists went about their work as they were able to observe the practices of their Western colleagues ...
Alain Thote, Karine Michel
doaj   +1 more source

Robust and Reversible Thermofluorescence in Solvent‐Free Thermoplastic Polyurethane Composites

Advanced Functional Materials, EarlyView.
Thermofluorescent polymer composites with high‐contrast optical outputs are prepared by solvent‐free blending of indenoquinacridone dye into a thermoplastic polyurethane matrix. The temperature‐dependent fluorescence originates from aggregation–dissociation of the dye molecules, regulated by competing hydrogen bonds from the polymer matrix.
Guanghua Yu, Bowen Tian, Jazmine Aiya Marquez, Chia‐Min Hsieh, Qingsheng Wang, Hung‐Jue Sue, Mohammed Al‐Hashimi, Peiran Wei, Lei Fang   +8 more
wiley   +1 more source