Results 31 to 40 of about 25,612 (227)

Microlobiusxylon paranaensis gen. et sp. nov. (fabaceae, mimosoideae) from the pliocene-pleistocene of ituzaingó formation, paraná basin, Argentina [PDF]

open access: yes, 2010
A fossil wood with Fabaceae affinity from the Pliocene-Pleistocene sediments of Ituzaingó Formation is described. The silicified wood was collected at the Toma Vieja fossil locality, Paraná Basin, Argentina.
Brea, Mariana, Franco, María Jimena
core   +1 more source

Assessing habitat suitability for black grouse broods at the bioregional scale

open access: yesWildlife Biology, EarlyView.
The black grouse Lyrurus tetrix, a galliform species emblematic of the European Alps, is currently threatened by habitat change, particularly given the closure of heathland linked to the rising tree line at higher altitudes. The presence of heathlands in good ecological condition is, however, imperative for the species' reproduction.
Alexandre T. M. Defossez   +6 more
wiley   +1 more source

Pietro Li Causi. In principio erano i mostri. Storie di entità orrorifiche e minacciose nel mito dei Greci e dei Romani

open access: yesLexis, 2023
Recensione di Li Causi, P. (2022). In principio erano i mostri. Storie di entità orrifiche e minacciose nel mito dei Greci e dei Romani. Roma: Inschibboleth Edizioni, 276 pp. La lira di Orfeo 3.
Falbo, Roberto
doaj   +1 more source

Assessing functional diversity and composition using multispectral images in Atlantic Forest restoration sites

open access: yesRestoration Ecology, Volume 34, Issue 4, May 2026.
Abstract Introduction By focusing on the specific functional traits of species, we can better understand how ecosystems function and respond to environmental change. However, field measurements of functional traits can be time‐consuming and costly, whereas remote sensing data can serve as viable alternatives for studying biodiversity at larger scales ...
Júlia Ayres de Oliveira   +8 more
wiley   +1 more source

Orfeo, Osmin and Otello: towards a theory of opera analysis [PDF]

open access: yes, 2004
Three diverse operatic selections are discussed in light of a new approach to opera ...
Burton, Deborah
core  

Synthetic Implications of Spin States in the Reactivity of Ni Intermediate Complexes in Coupling Reactions

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 16, 25 April 2026.
The formation of triplet Ni(II) complexes by activation of bromoalkenes with alkyl‐ or boryl Ni(I) is key to control the outcome of the reductive cross‐coupling of bromoalkanes precluding the formation of alkylboronates. We present a mechanistic study on the Ni‐catalyzed cross‐coupling reaction of bromoalkanes with diboron compounds as reductants.
Diego J. Cárdenas
wiley   +1 more source

Orfeo e la potenza dell’arte. La rinascita del teatro e della musica tra Poliziano, Rinuccini e Striggio-Monteverdi

open access: yesRhesis, 2013
L’intervento si propone di interpretare il significato del mito di Orfeo ed Euridice tra teatro e musica in  Italia negli anni che vanno dal tardo Rinascimento al Barocco delle origini, con accenni ai problemi  relativi alla definizione dei generi e ...
Paolo Divizia
doaj   +1 more source

Silyl Rearrangements in Gold‐Catalyzed Transformations

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 15, 22 April 2026.
The synergy between the exceptional ability of gold catalysts to activate unsaturated substrates and the inherent tendency of organosilicon reagents to undergo silyl‐group rearrangements has unlocked a range of novel transformations, enabling access to otherwise challenging molecular architectures.
Patricia García‐Martínez   +1 more
wiley   +1 more source

The Discourse of Fairyland in the Dream Vision of the Middle English Pearl [PDF]

open access: yes, 2017
The Middle English poem Pearl is a mixture of a number of genres. Opening like an elegy, with its initial stanzas heavily indebted to courtly love poetry, it proceeds towards a dream vision that launches into a theological debate concluded by an ...
Spyra, Piotr
core  

An Unusually Short Unsupported PtPt Bond in a 24‐Electron Diplatinum(0) Complex With Fluorinated Bis(phosphonite) Ligands

open access: yesChemistryEurope, Volume 4, Issue 4, April 2026.
A bulky fluorinated bis(phosphonite) ligand enables a 24‐electron Pt0–Pt0 complex featuring the shortest unsupported PtPt bond reported. Energy Decomposition Analysis (EDA), Natural Orbitals for Chemical Valence (NOCV), Noncovalent Interaction analysis (NCI), and Atoms‐in‐Molecules theory (AIM) uncover how steric and electronic effects stabilize this ...
María M. Alcaide   +3 more
wiley   +1 more source

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