Results 41 to 50 of about 445,654 (297)

Halide Perovskite: A Rich Source of Thermal Insulator

open access: yesAdvanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye   +3 more
wiley   +1 more source

Approaching household units from chipped stone assemblages at Alsónyék-Bátaszék, south Hungary

open access: yesБългарско е-Списание за Археология, 2017
This article summarizes the current state of research on the chipped stone assemblages from the settlement of Alsónyék-Bátaszék. This site belongs to the southeast Transdanubian group of the Late Neolithic Lengyel culture.
Kata Szilágyi
doaj  

The supply system of siliceous rocks between the Drava, Sava and Danube rivers during the Starčevo culture

open access: yesDocumenta Praehistorica, 2011
This paper analyses the production processes of chipped stone artefacts from ten Starčevo culture sites in the area between the rivers Sava, Drava and Danube.
Rajna Sošić Klindžić
doaj   +1 more source

Chronic HBV Infection Disrupts CCL5‐Secreting cNK Cells and Attenuates Liver Accumulation and Activation of DCs and HBV‐Specific T Cells

open access: yesAdvanced Science, EarlyView.
ADORA2A activation suppresses NFκB‐dependent CCL5 production in cNK cells during chronic HBV infection, disrupting intrahepatic DC recruitment and HBV‐specific CD8+ T‐cell differentiation and function. Targeting the ADORA2A/NFκB/CCL5 axis restores antiviral immunity and facilitates HBV clearance.
Ailu Yang   +9 more
wiley   +1 more source

EDNRA Forms a Positive Feedback Loop with the Hippo/YAP Axis to Drive Triple‐Negative Breast Cancer Progression

open access: yesAdvanced Science, EarlyView.
Endothelin receptor type A (EDNRA) and the Hippo/YAP pathway form a self‐reinforcing loop that sustains triple‐negative breast cancer. EDNRA activates YAP through Gαq/11–Rho/ROCK–LATS signaling, while YAP/TEAD4 reciprocally drives EDNRA transcription.
Zehao Hong   +10 more
wiley   +1 more source

Differences in the selection of raw materials at the site of Polgár-Csőszhalom, northeast Hungary

open access: yesБългарско е-Списание за Археология, 2017
Chipped stone artefacts played an important role in sustaining human life not just in the Palaeolithic, but in the Neolithic period also. The raw material preferences and choices became more indicative as more complex settlements and societies emerged ...
Norbert Faragó
doaj  

Light-quality-tunable illumination system using a liquid crystal light control film for application to lighting for cultural properties

open access: yesStudies in Science and Technology
The light quality, i.e., the softness of the illumination, has a significant effect on both the color information and the roughness information of the surfaces of illuminated bodies, which are read by observing these illuminated bodies.
Keizo Nakayama   +3 more
doaj   +1 more source

Obsidian deposits in the central Balkans? Tested against archaeological evidence [PDF]

open access: yesStarinar, 2003
Finds of obsidian artefacts on sites distant from the presumed primary source have often received a romantic note in the history of archaeology manifested in the idea about local exploitation as a form of procurement and archaeologists’ search for as yet
Tripković Boban
doaj   +1 more source

Rhoifolin Alleviates Ulcerative Colitis by Targeting NMNAT1 and Activating SIRT1‐FOXO1 Signaling to Enhance ILC3s Effector Function

open access: yesAdvanced Science, EarlyView.
Rhoifolin directly targets NMNAT1, thereby activating nicotinamide salvage pathway and promoting intracellular NAD+ biosynthesis. Elevated NAD+ levels enhance SIRT1 activity, leading to FOXO1 deacetylation and nuclear translocation. Nuclear FOXO1 subsequently binds to the IL‐22 promoter, upregulating IL‐22 transcription and potentiating ILC3 effector ...
Hongqiong Yang   +12 more
wiley   +1 more source

A Glimpse at Raw Material Economy and Production of Chipped Stones at the Neolithic (Starčevo) Site of Svinjarička Čuka, South Serbia

open access: yesOpen Archaeology
In this contribution, we present new data from the multi-layered Starčevo site of Svinjarička Čuka in southern Serbia, highlighting its key role in reconstructing processes involved in the dispersal of the Neolithic way of life from Anatolia into Central
Brandl Michael   +2 more
doaj   +1 more source

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