Results 111 to 120 of about 895,320 (309)

Early Iron Age urbanism in the south-eastern Alpine region

open access: yesDocumenta Praehistorica
Largescale excavation at the Iron Age and Roman period Pungrt hillfort (8th century BC to 2nd century AD) has revealed a distinctly urban character of the settlement in its best-preserved Late Hallstatt phase from the 6th to 4th centuries BC. This study
Petra Vojaković   +5 more
doaj   +1 more source

Traces of Late Bronze and Early Iron Age Mongolian Horse Mitochondrial Lineages in Modern Populations. [PDF]

open access: yesGenes (Basel), 2021
Kusliy MA   +7 more
europepmc   +1 more source

Evaluation of the Dual Impact of Nanotechnologies on Health and Environment Through Alternative Bridging Models

open access: yesAdvanced Healthcare Materials, EarlyView.
This review explores how alternative invertebrate and small‐vertebrate models advance the evaluation of nanomaterials across medicine and environmental science. By bridging cellular and organismal levels, these models enable integrated assessment of toxicity, biodistribution, and therapeutic performance.
Marie Celine Lefevre   +3 more
wiley   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

open access: yesAdvanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje   +7 more
wiley   +1 more source

A Late Bronze Age ring-forst at Bayvil Farm, Pembrokeshire [PDF]

open access: yes, 2018
A 70m-diameter circular ditched enclosure identified as a cropmark in 1996 at Bayvil Farm, Eglwyswrw, north Pembrokeshire, was initially thought to be a segmented-ditched enclosure, an early type of Neolithic henge.
Casswell, C.   +2 more
core  

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

open access: yesAdvanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa   +3 more
wiley   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

open access: yesAdvanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi   +4 more
wiley   +1 more source

The beginnings of iron in Slovenia

open access: yesArheološki Vestnik, 2012
Elementary iron is relatively rare in nature and is of native and meteoric origin. The metal is obtained from high-quality iron minerals, deposits of which are widely distributed throughout the world, very often even on the surface.
Neva Trampuž Orel
doaj  

Effect of food and micronutrient supplementation during pregnancy on subsequent development of infants in Bangladesh: a randomized trial [PDF]

open access: yes, 2006
Background: The prevalence of low birth weight (LBW) is high in developing countries and is estimated to be 30% (UNICEF, 2001) in Bangladesh. Maternal under nutrition is an important cause of LBW is also highly prevalent in Bangladesh 50 % (March of ...
Tofail, F
core  

Sculpting the Future of Bone: The Evolution of Absorbable Materials in Orthopedics

open access: yesAdvanced Materials, EarlyView.
This review summarizes the current status of polymeric, ceramic, and metallic absorbable materials in orthopedic applications, and highlights several innovative strategies designed to enhance mechanical performance, control degradation, and promote bioactivity. We also discuss the progress and translational potential of absorbable materials in treating
Zhao Wang   +13 more
wiley   +1 more source

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