Results 121 to 130 of about 31,311 (333)

Quantum degenerate mixtures of strontium and rubidium atoms

open access: yes, 2013
We report on the realization of quantum degenerate gas mixtures of the alkaline-earth element strontium with the alkali element rubidium. A key ingredient of our scheme is sympathetic cooling of Rb by Sr atoms that are continuously laser cooled on a ...
Bayerle, Alex   +7 more
core   +1 more source

Defect‐driven innovations in photocatalysts: Pathways to enhanced photocatalytic applications

open access: yesInfoMat, EarlyView.
Different types of defects were comprehensively studied. Heterojunction and interface defects were deeply highlighted. Advantages of defect engineering have been discussed in detail. Defect engineering presents new opportunities for cost‐effective photocatalysts.
Hamid Ali   +11 more
wiley   +1 more source

Spectroscopy of $^{87}\text{Sr}$ triplet Rydberg states

open access: yes, 2018
A combined experimental and theoretical spectroscopic study of high-$n$, ${30 \lesssim n \lesssim 100}$, triplet $\text{S}$ and $\text{D}$ Rydberg states in $^{87}\text{Sr}$ is presented. $^{87}\text{Sr}$ has a large nuclear spin, ${I=9/2}$, and at high-$
Burgdörfer, J.   +6 more
core   +2 more sources

Combining genetic and isotope frameworks improves reconstruction of fish provenance across riverscapes

open access: yesLimnology and Oceanography Letters, EarlyView.
Abstract Understanding the spatial ecology of migratory species is uniquely challenging using conventional approaches. In fisheries such as for Pacific salmon, genetic stock identification (GSI) and isotope‐based methods have emerged as strategies for reconstructing spatial ecology but are limited by the spatial resolution of genetic differentiation ...
Ben Makhlouf   +8 more
wiley   +1 more source

Cobalt–Oxygen Bond Homolysis in the Bench‐Stable (Salen*)Cobalt(III) Acetate Complex: Insight into the Organometallic Mediated Radical Polymerization of Diverse Monomers

open access: yesMacromolecular Chemistry and Physics, EarlyView.
The air‐stable [(Salen*)Co(OAc)] complex initiates the radical polymerization of vinyl monomers via Co–O bond homolysis, distinguishing it from classical air‐sensitive cobalt complexes relying on Co‐C bond cleavage. Accordingly, MMA polymerization proceeds via catalytic chain‐transfer while MA undergoes controlled OMRP involving two distinct initiation
Maxime Michelas   +5 more
wiley   +1 more source

The Origins of Viking Age Dogs in Luistari, Eura, Finland

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT We used stable (δ18O) and radiogenic (87Sr/86Sr) isotopic proxies to investigate the origins of dogs (Canis familiaris) buried in Viking Age graves at Luistari, Finland. While all 13 dogs exhibited oxygen isotope values compatible with local surface waters, 87Sr/86Sr ratios for two of the four dogs analyzed (graves 289 and 480) were compatible
Ulla Nordfors   +5 more
wiley   +1 more source

Dendritic network models: Improving isoscapes and quantifying influence of landscape and in‐stream processes on strontium isotopes in rivers

open access: yesGeophysical Research Letters, 2016
A critical challenge for the Earth sciences is to trace the transport and flux of matter within and among aquatic, terrestrial, and atmospheric systems. Robust descriptions of isotopic patterns across space and time, called “isoscapes,” form the basis of
Sean R. Brennan   +5 more
doaj   +1 more source

Neolithic Lifeways at the Microlevel: Isobiographies From Italy

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT Characterization of prehistoric lifeways tends to work at the level of generalization, but can we investigate microvariation? For example, it is common to discuss the “Neolithic diet”, but how much did what people ate vary, not only between individuals but from year to year or from place to place?
Silvia Soncin   +13 more
wiley   +1 more source

Demographic Composition and Pathology of the Human Occupants and Sacrificial Victims at Ancient Korean Tombs

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT Archaeological evidence demonstrates that mortuary practices involving human sacrifice, known in Korea as sunjang, were conducted in ancient Korea. However, few studies have examined the biological attributes of individuals associated with this practice to explore the relationship between sacrificial victims and principal tomb occupants or to ...
Eun Jin Woo   +3 more
wiley   +1 more source

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