Results 151 to 160 of about 1,251,668 (227)

Das ungewöhnliche [B(ReO4)4]−‐Anion in der nicht‐zentrosymmetrischen Kristallstruktur von K[B(ReO4)4]

open access: yesAngewandte Chemie, EarlyView.
Farblose Kristalle von K[B(ReO4)4] wurden durch die Reaktion von KReO4 mit B2O3 in einer Re2O7 Schmelze erhalten. Die Einkristallstrukturanalyse zeigt B(ReO4)4]−‐ Anionen, die durch vier [ReO4]‐Tetraeder, die an ein zentrales Boratom koordinieren, aufgebaut ist.
Stefan Sutorius   +5 more
wiley   +1 more source

Low‐Threshold Red Lasing in Diketopyrrolopyrrole‐Based Organic Semiconductor Films

open access: yesAngewandte Chemie International Edition, EarlyView.
Low‐threshold organic semiconductor lasers (OSLs) in the red region are achieved using diketopyrrolopyrrole (DPP) derivatives (DPA‐DPPMe and HMAT‐d‐DPP). Molecular design enables precise control of radiative‐decay and molecular orientation, suppressing optical losses and enhancing gain.
Youhei Chitose   +11 more
wiley   +1 more source

The Elusive [B(ReO4)4]− Anion in the Non‐Centrosymmetric Crystal Structure of K[B(ReO4)4]

open access: yesAngewandte Chemie International Edition, EarlyView.
Colorless crystals of K[B(ReO4)4] have been obtained from the reaction of KReO4 with B2O3 in a melt of Re2O7. According to single‐crystal structure analysis the compound has an anion which is built up by four (ReO4)‐tetrahedra coordinated to a central boron atom. Furthermore, the compound has been investigated by Raman spectroscopy and DFT calculations
Stefan Sutorius   +5 more
wiley   +1 more source

Development and Validation of a Cellulose‐Coated Stir Bar Sorptive Extraction Method for a Simple, Environmentally Friendly Approach to Measuring Free Glycerol in Biodiesel

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Preparation of a highly porous cellulose‐coated stir bar for the selective, environmentally friendly extraction of free glycerol from biodiesel using the SBSE method, followed by HPLC‐DAD analysis of the extract after derivatization with benzoyl chloride.
Caroline Lopes da Silva   +3 more
wiley   +1 more source

Performance Assessment and Lab‐Scale Economic Evaluation of Alkaline Extraction and Comparative Precipitation of Cyanobacterial Proteins

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Algal proteins from cyanobacteria serve as a natural source of biopolymers. The principal challenge manifests as nonoptimization of unit operations in downstream process accounting for higher costs. This study focuses on process assessment of unit‐operations for selecting suitable recovery strategies not only based on yield, but also considers
Neha Goel   +2 more
wiley   +1 more source

Compositionally Engineered Carboxymethyl Cellulose‐Based Optical Fibers With Exceptionally Low Optical Loss and Quantitative Humidity Sensing

open access: yesAdvanced Physics Research, EarlyView.
Carboxymethyl cellulose‐based biopolymer optical fibers are fabricated using aqueous wet spinning. The fibers exhibit record‐low optical attenuation in polysaccharide‐based waveguides while maintaining efficient transmission across the visible‐to‐near‐infrared region of the electromagnetic spectrum.
Jani Patrakka   +3 more
wiley   +1 more source

Much more than their fangs: Macroscopic anatomy of the brain of Bothrops moojeni Hoge 1966 (Squamata, Serpentes, Viperidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract Neuroanatomical research has progressed considerably in several vertebrate lineages, yet studies of reptilian brain morphology remain markedly underdeveloped. Here we provide the first description of macroscopic brain anatomy and its ontogeny in the viperid Bothrops moojeni, based on a sample of seven individuals.
Paula Araújo   +2 more
wiley   +1 more source

Morpho‐functional analyses of the jaw apparatus in the Blue‐and‐yellow Macaw (Ara ararauna, Psittaciformes, Aves): Adaptations to feeding behavior

open access: yesThe Anatomical Record, EarlyView.
Abstract Macaws are renowned for processing dry, mechanically resistant fruits, yet the species‐level anatomical and functional correlates of this performance remain incompletely resolved. We examined the feeding apparatus of the Blue‐and‐yellow Macaw (Ara ararauna) using an integrated approach that combines osteology, myology, and bite‐force estimates
Sérgio R. Posso   +2 more
wiley   +1 more source

Hormonal control and signaling of the testis of the bat Molossus molossus during the processes of testicular maturation, regression, and recrudescence

open access: yesThe Anatomical Record, EarlyView.
Abstract Molossus molossus, a species of neotropical bat belonging to the Molossidae family, has an annual reproductive cycle that includes two peaks of spermatogenic activity, one in April and another in September, and a period of total testicular regression in December.
Emília M. Soares   +6 more
wiley   +1 more source

Arthroscopic Anterior Cruciate Ligament Repair With Suture Augmentation Provides Good to Excellent Midterm Functional Outcomes Despite Clinically Relevant Revision Rates

open access: yesArthroscopy, Sports Medicine, and Rehabilitation, EarlyView.
Purpose To evaluate midterm functional outcomes after anterior cruciate ligament (ACL) repair with suture augmentation and to determine whether concomitant injuries influence patient‐reported outcomes. Methods This retrospective single‐center cohort study included patients undergoing arthroscopic ACL repair with suture augmentation between January 2017
Anna Patricia Egert   +6 more
wiley   +1 more source

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