Results 231 to 240 of about 446,324 (293)

Stabilization of the Benzene Radical Trianion in an Inverse‐Sandwich Yttrium Complex

open access: yesAngewandte Chemie, EarlyView.
A new type of benzene anion state is born: The unprecedented benzene radical trianion embedded in an inverse‐sandwich yttrium complex was synthesized by a one‐electron chemical reduction of its benzene dianion precursor using potassium graphite in the presence of [2.2.2]‐cryptand.
Weiqing Mao   +5 more
wiley   +2 more sources

3D Hydrogel Cell Cultures and Their Biomedical Applications

open access: yesAdvanced NanoBiomed Research, EarlyView.
The review highlights the advantages of hydrogel‐based 3D cell cultures over traditional 2D models. These hydrogels closely mimic natural cellular environments, improving research in tissue engineering, drug discovery, cancer studies, and neuroscience.
Tri Lan Thai   +7 more
wiley   +1 more source

Biosynthesis of Kaitocephalin: A Neuroprotective Natural Product Featuring a Peptide‐Like yet Nonpeptidic Scaffold

open access: yesAngewandte Chemie, EarlyView.
Kaitocephalin (KCP) is a neuroprotective fungal metabolite with a unique scaffold of amino acids linked via C–C bonds. Genome‐transcriptome analyses identified its biosynthetic gene cluster (kpb cluster) in Eupenicillium shearii. LC‐MS/MS profiling identified four new KCP‐related compounds.
Yukari Maeno   +5 more
wiley   +2 more sources

A Crystalline Mono‐Coordinate Indium(I)‐Phosphaalkenyl

open access: yesAngewandte Chemie, EarlyView.
The redox neutral carbometallation of a phospha‐alkyne using the dimeric indium(I) compound (InTer)2 is reported. This reaction affords a mono‐coordinate indium(I) compound that can reversibly extrude the phospha‐alkyne upon addition of a Lewis acid. Abstract The synthesis of the mono‐coordinate indium(I) compound In[C(Ad)═PTer] (Ad = 1‐adamantyl, Ter =
Álvaro García‐Romero   +3 more
wiley   +2 more sources

Stereodivergent Synthesis of Three Contiguous Stereogenic Centers by Cu/Ir‐Catalyzed Borylallylation

open access: yesAngewandte Chemie, EarlyView.
An alkene borylallylation strategy enabled by cooperative Cu/Ir‐catalysis has been uncovered for accessing three contiguous stereogenic centres. This strategy is notable given the inherent challenges of constructing molecules with multiple stereocenters while maintaining high selectivity bearing diverse functional groups.
Suman Das   +2 more
wiley   +2 more sources

Visual communication in brown bears

open access: yes, 2021
Penteriani Dragone, Vicenzo   +1 more
openaire   +1 more source

A simple and affordable protocol to assess censer seed dispersal: First confirmation of the mechanism in the genus Solanum

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise The censer seed dispersal mechanism, whereby mature fruits are retained on plants and seeds dispersed by mechanical shaking, is among the most specialized wind‐aided seed dispersal strategies employed by the flowering plants. An efficient, affordable, and easily repeatable protocol for determining whether a species uses this unusual ...
Abigail J. Motter   +2 more
wiley   +1 more source

Quantitative assessment of masticatory muscles based on skull muscle attachment areas in Carnivora

open access: yesThe Anatomical Record, EarlyView.
Abstract Masticatory muscles are composed of the temporalis, masseter, and pterygoid muscles in mammals. Each muscle has a different origin on the skull and insertion on the mandible; thus, all masticatory muscles contract in different directions. Collecting in vivo data and directly measuring the masticatory muscles anatomically in various Carnivora ...
Kai Ito   +4 more
wiley   +1 more source

Dr. Hans Kohn and the political takeover of the Berlin Medical Society by the National Socialist regime in 1933

open access: yesThe Anatomical Record, EarlyView.
Abstract To solidify their power over society, totalitarian regimes will usually eliminate any dissent, any perceived threats early on. These threats include not only political enemies but also educated and independent segments of society, such as professional associations.
Michael Hortsch
wiley   +1 more source

Description of the skull, braincase, and dentition of Moschognathus whaitsi (Dinocephalia, Tapinocephalia), and its palaeobiological and behavioral implications

open access: yesThe Anatomical Record, EarlyView.
Abstract A subadult Moschognathus whaitsi from the Eastern Cape Province, South Africa, was scanned using synchrotron radiation X‐ray computed tomography (SRXCT). Its subadult state allowed the cranial bones and teeth to be identified and individually reconstructed in 3D.
Tristen Lafferty   +3 more
wiley   +1 more source

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