Results 21 to 30 of about 5,076 (216)

Aziridination of a Single Carbon Atom in Alkenes via Energy Transfer Catalysis

Angewandte Chemie International Edition, EarlyView.
Contrary to traditional alkene aziridination via (formal) nitrene transfer, we herein report a strategy that achieves intermolecular aziridination of a single alkene carbon atom and installs an additional group at the other. Enabled by metal‐free energy transfer (EnT) catalysis, alkenyl boronates and silanes are transformed into reactive intermediates ...
Fritz Paulus, Corinna Heusel, Felix H. Wessels, Bünyamin Sikora, Maik G. Niedziella, Kilian van der Beck, Constantin G. Daniliuc, Frank Glorius   +7 more
wiley   +1 more source

Stein spaces and Stein algebras

Bulletin of the Polish Academy of Sciences. Mathematics
We prove that the category of Stein spaces and holomorphic maps is anti-equivalent to the category of Stein algebras and C-algebra morphisms. This removes a finite-dimensionality hypothesis from a theorem of Forster.
openaire   +2 more sources

Broadening the semiaquatic scene: Quantification of long bone microanatomy across pinnipeds

The Anatomical Record, EarlyView.
Abstract Investigations of bone microanatomy are commonly used to explore lifestyle strategies in vertebrates. While distinct microanatomical limb bone features have been established for exclusively aquatic and terrestrial lifestyles, identifying clear patterns for the semiaquatic lifestyle remains more challenging.
Apolline Alfsen, Christian de Muizon, Olivier Lambert, Giovanni Bianucci, Antonia R. Kaffler, Matthew R. McCurry, Alexandra Houssaye, Rafael M. Varas‐Malca, Rodolfo Salas‐Gismondi, Oliver Hampe, Eli Amson   +10 more
wiley   +1 more source

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae

The Anatomical Record, EarlyView.
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza, Marina Bento Soares, Luiz Carlos Weinschütz, Alexander Wilhelm Armin Kellner   +3 more
wiley   +1 more source

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

The Anatomical Record, EarlyView.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer, Christian Cooper, Jingmai O'Connor   +2 more
wiley   +1 more source

Twin pregnancies and the limits of the energetics of gestation and growth hypothesis

The Anatomical Record, EarlyView.
Abstract The “Energetics of Gestation and Growth” (EGG) hypothesis proposes that human birth timing and the associated secondary altriciality of human newborns is determined by limits in maternal metabolic capacity. According to this model, labor is triggered when the increasing fetal energy requirements exceed the expectant mother's maximum sustained ...
Cédric Cordey, Nicole M. Webb, Martin Haeusler   +2 more
wiley   +1 more source

Embedding of Stein spaces into sequence spaces

Manuscripta Mathematica, 1982
In this note we show that a connected, reduced Stein space X of arbitrary dimension admits a holomorphic embedding into various sequence spaces, for example into s,s',0(ℂn) or ℂ , and also into infinite dimensional complex Banach spaces. As an application we prove that the Frechet space 0 (X) of holomorphic functions on X is a quotient of s.
openaire   +1 more source

Computed Tomography‐Based Morphometric Analysis Reveals Intercondylar Notch Stenosis and Osteophytes Are Associated With Anterior Cruciate Ligament Injury

Arthroscopy, EarlyView.
Purpose To quantitatively assess intercondylar notch morphometrics using 3‐dimensional computed tomography reconstruction, evaluate their association with anterior cruciate ligament (ACL) injury in Asian populations, and investigate the prevalence of osteophytes in patients with ACL injury.
Xiaozhong Ma, WenMing Jiang, Chao Lu, Tongyue Ji, Su Yan, Heng Zhu, Xue He, Hao Shu, Lei Wang, Luning Sun   +9 more
wiley   +1 more source

Domains of holomorphy in Stein spaces

Rendiconti Lincei, Matematica e Applicazioni, 2023
We prove an interpolation theorem for domains in Stein spaces that are locally Stein outside rare analytic sets and improve several existing results in this area. This is then applied to the Levi problem in Stein spaces.
openaire   +2 more sources

Single‐Stage Repair of Complex Anterolateral Radial and Posterior Root Tears of the Lateral Meniscus, With a Concomitant Multiligament Knee Reconstruction of the Anterior Cruciate Ligament, Medial Collateral Ligament, Posterior Oblique Ligament, and Anterolateral Ligament in a Young Athlete

Arthroscopy Techniques, EarlyView.
Abstract Early meniscal repair and anatomic reconstruction in a multiligament knee injury optimizes outcomes and restores tibiofemoral mechanics. This technique describes a lateral meniscus posterior root and radial tear repair, with concomitant medial ramp repair, performed during single‐stage reconstruction of the anterior cruciate ligament ...
Romir Patel, Sarah L. Larson, Benjiman J. Wilebski, Luke V. Tollefson, Matthew T. Rasmussen, Dustin R. Lee, Robert F. LaPrade   +6 more
wiley   +1 more source