Results 61 to 70 of about 55,477 (217)

Boyeria irene (Fonscolombe, 1838) y Cordulegaster boltonii (Donovan, 1807) (Odonata): dos estrategias en cuanto a sustratos de emergencia de larvas en un mismo hábitat

open access: yesGraellsia, 2017
Se presentan datos sobre emergencia de Cordulegaster boltonii y Boyeria irene en un río de montaña del centro de España (altitud 1200 m s.n.m.) donde coexisten ambas especies, basados en la recogida semanal de exuvias.
Patricia Casanueva   +3 more
doaj   +1 more source

Genetic Variation in ADHD‐Related Risk Genes in an Indigenous Population of the Amazon

open access: yesAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Attention‐Deficit/Hyperactivity Disorder (ADHD) is a highly heritable neurodevelopmental disorder; however, its genetic architecture remains poorly explored in Indigenous populations. This study aimed to analyze and characterize genetic variation in 11 genes (ADGRL3, CDH8, DCC, DUSP6, FOXP1, FOXP2, MEF2C, PCDH7, SEMA6D, SORCS3, and ST3GAL3 ...
Hirlesson Paixão de Matos   +11 more
wiley   +1 more source

Genetic Variants of Na+,K+‐ATPase Associated With Neurological Disorders: A Systematic Review

open access: yesAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Neurological disorders encompass a wide range of severe symptoms and manifestations, many of which are associated with genetic variants that affect ionic homeostasis. Na+,K+‐ATPase, a transmembrane enzyme responsible for maintaining electrochemical gradients in cells, plays a crucial role in neuronal excitability and brain function.
Giovana Kummer da Rosa   +3 more
wiley   +1 more source

Entdeckung der cyclischen Form des MRT‐pH‐Sensors Z‐OMPD ermöglicht >5% 13C‐Hyperpolarisation durch SABRE

open access: yesAngewandte Chemie, EarlyView.
Mit „c‐OMPD“ entdeckten wir eine bislang unbekannte fünfgliedrige Lactolstruktur, die durch Homoaldolkondensation des zentralen Metaboliten Brenztraubensäure entsteht. Wir zeigen, dass das Cyclisierungsgleichgewicht für die Funktion von OMPD als MRT‐basierte pH‐Sonde von entscheidender Bedeutung ist, und erreichen erstmals eine 13C‐Polarisation von >5 %
Juanita Ferreira   +9 more
wiley   +1 more source

Lista sistemática de la ictiofauna de la Reserva de la Biosfera La Encrucijada, Chiapas, México

open access: yesRevista Mexicana de Biodiversidad, 2012
Se documentó la lista sistemática de los peces en la Reserva de la Biosfera La Encrucijada (REBIEN), durante un periodo comprendido de 2004 a 2009. El elenco sistemático lo componen 153 especies, que se incluyen en dos clases, 20 órdenes, 52 familias ...
Adán Enrique Gómez González   +5 more
doaj   +1 more source

Discovery of the Cyclic Form of MRI pH‐Sensor Z‐OMPD Enables >5% 13C Hyperpolarization by SABRE

open access: yesAngewandte Chemie International Edition, EarlyView.
With “c‐OMPD”, we discovered a previously unknown 5‐membered lactol structure that arises from the homoaldol condensation of the central metabolite pyruvic acid. We demonstrate that the cyclization equilibrium is of crucial importance for OMPD's function as MRI‐based pH sensor and achieve for the first time 13C polarization levels (>5%) by SABRE in the
Juanita Ferreira   +9 more
wiley   +1 more source

Variación estructural de la comunidad perifítica colonizadora de sustratos artificiales en la zona de ritral del río Medellín, Colombia

open access: yesRevista de Biología Tropical, 2007
Se colocaron muestreadores de material acrílico con portaobjetos a nivel subsuperficial en dos estaciones de recolección en la parte alta del río Medellín.
Yimmy Montoya M, John J Ramírez R
doaj  

Alkali‐Catalyzed Synthesis of Acylglycerol Estolides Exclusively from Castor Oil

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
This work advances sustainable chemistry by converting renewable castor oil into high‐performance estolides via solvent‐free, low‐energy catalysis. ABSTRACT Estolides are oligomers composed of fatty acid (FA) monomers linked through secondary ester bonds located along the mid‐chain region.
Lucas Natã de Melo   +3 more
wiley   +1 more source

The need for a hydromorphological approach to Chilean river management La necesidad de un enfoque hidromorfológico para la gestión de los ríos chilenos

open access: yesRevista Chilena de Historia Natural, 2012
The manuscript reflects the opinion of the authors about the need for a hydromorphological approach for the management of Chilean rivers. A brief state-of-the-art of the recent scientific advances on hydromorphological approach to river management is ...
ANDREA ANDREOLI   +8 more
doaj  

Environmental and Genetic Effects on the Composition of Palm Oil From Hybrid Plant Clones of Caiaué and Oil Palm

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT The interspecific hybrids (IEH OxG) obtained from the crossing of Elaeis oleifera (Eo) and Elaeis guineensis (Eg) are resistant to some diseases that affect Eg in some regions of South America, and commercial growing in several countries has been established.
Rosemar Antoniassi   +6 more
wiley   +1 more source

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