Results 61 to 70 of about 90,781 (159)

Tripartite assembly of RND multidrug efflux pumps

open access: yesNature Communications, 2016
Tripartite efflux systems consist of inner membrane, outer membrane and periplasmic components. Here, Daury et al. reconstitute native versions of RND transporters in nanodiscs and present projection structures emphasizing the role of the periplasmic ...
Laetitia Daury   +10 more
doaj   +1 more source

Comparative Functionality and Processing of Plant‐Proteins: A Path Toward Optimized Sustainable Plant‐Based Meat Analogues (PBMAs): A Review

open access: yesSustainable Food Proteins, Volume 4, Issue 2, June 2026.
The review provides a comprehensive comparison in terms comparison of commercially established and emerging plant protein sources, focusing on their structural, rheological, and sensory attributes for developing sustainable plant‐based meat analogues (PBMAs).
Mian N. Riaz   +3 more
wiley   +1 more source

Exploring 6‐Hydroxy‐3‐Aryl/Heteroarylcoumarins as Promising Candidates Against Trypanosoma cruzi

open access: yesChemMedChem, Volume 21, Issue 9, 14 May 2026.
New therapies are urgently needed for Chagas disease, and screening of 6‐hydroxy‐3‐aryl/heteroarylcoumarin derivatives identified highly selective compounds with potent activity against T. cruzi. In particular, derivative 1f showed submicromolar trypomastigote potency, dual‐stage activity, and inhibition of amastigote‐to‐trypomastigote differentiation,
C. N. Pereira   +7 more
wiley   +1 more source

Rede Morfológica Não Supervisionada-RMNS

open access: yesAnais do 4. Congresso Brasileiro de Redes Neurais, 2016
In this work we propose a new paradigm of Artificial Neural Net (RNA): the Unsupervised Morphologic Net (RMNS portuguese-speaking), characterized by competitive learning. This paradigm belongs to a class of translation invariant nets and it is based on gray level Mathematical Morphology (MM), Carpenter and Grossberg's ART, and Kohonen net models.
Francisco de Assis Tavares Ferreira da Silva   +1 more
openaire   +2 more sources

Anxiolytic and Memory Protective Effects of Withanolide D Isolated From Acnistus arborescens in Adult Zebrafish

open access: yesChemistry &Biodiversity, Volume 23, Issue 5, May 2026.
Withanolide D Exhibits Anxiolytic and Memory‐Protective Effects. ABSTRACT This study evaluated the anxiolytic and memory‐protective effects of withanolide D in adult zebrafish (Danio rerio). The compound was administered at doses of 4, 20, and 40 mg/kg and showed no signs of toxicity after 96 h of observation at any of the doses tested.
Cléia Rocha de Sousa Feitosa   +17 more
wiley   +1 more source

SINTEZA ȘI STUDIUL LIGANZILOR ȘI COMPUSULUI COORDINATIV AL OXOVANADIULUI(IV) ÎN BAZA HIDRAZIDEI ACIDULUI IZONICOTINIC ȘI S-METILTIOSEMICARBAZIDEI

open access: yesActa et Commentationes: Ştiinţe Exacte şi ale Naturii, 2019
Au fost sintetizați doi liganzi: izonicotinoilhidrazona 1-fenil-1,3-butandionei (L1 ) și S-metiltiosemicarbazona o-vanilinei (L2 ) și un compus coordinativ al oxovanadiului IV [VOL1 (OCH3)]2 și investigați cu spectroscopia RMN 1H și 13C RMN ...
Mihaela ROTARU, Maria COCU
doaj   +1 more source

Photochemistry of (‐)‐Levoglucosenone: Norrish Type I Reaction and Photoinduced Electron Transfer Processes

open access: yesChemPhotoChem, Volume 10, Issue 5, May 2026.
Photochemically excited levoglucosenone (LGO) efficiently undergoes Norrish type I reactions yielding particularly functionalized alkenes. In the presence of tertiary amines, this reaction is quenched by an intermolecular electron transfer. This process leads to addition products with high stereoselectivity.
Mario Andrés Gomez Fernandez   +6 more
wiley   +1 more source

1H NMR Analysis of Cerebrospinal Fluid from Alzheimer’s Disease Patients: An Example of a Possible Misinterpretation Due to Non-Adjustment of pH

open access: yesMetabolites, 2014
Two publications from the same research group reporting on the detection of new possible biomarkers for the early diagnosis of Alzheimer’s disease (AD), based on the analysis of cerebrospinal fluid samples (CSF) with 1H Nuclear Magnetic Resonance (NMR ...
Thomas Cruz   +6 more
doaj   +1 more source

Xanthatin‐13‐(Pyrrolidine‐2‐Carboxylic Acid), a Sesquiterpene Lactone Isolated From Burdock Leaf, Attenuated Aβ25‐35 Toxicity and Memory Deficits in a Pharmacological Mouse Model of Alzheimer's Disease

open access: yesPhytotherapy Research, Volume 40, Issue 5, Page 2824-2843, May 2026.
ABSTRACT Alzheimer's disease (AD) is a severe form of dementia, which occurrence increases with age and lifestyle conditions. It is characterized by amyloid protein accumulation forming senile plaques, hyperphosphorylated tau protein forming neurofibrillary tangles, neuroinflammation, and oxidative stress, leading to synapse loss and cell death ...
Charlyne Barry‐Simonnet   +10 more
wiley   +1 more source

COMPLETA ASIGNACIÓN DE LOS ESPECTROS DE 1H Y 13C RMN DE DOS GUAYANOLIDAS CONOCIDAS AISLADAS DE Centaurea musimomum

open access: yesRevista Colombiana de Química, 2008
Se complementan los datos espectroscópicos de dos guayanolidas conocidas aisladas de C. musimomum por 1H, 13C y 2D RMN (HSQC, HMBC, 1H-1H COSY).
K. Medjroubi   +3 more
doaj  

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