Results 31 to 40 of about 23,928 (248)

Una aproximación al eco-exposoma en Lontra annectens: biomonitoreo no invasivo de contaminantes y mutagenicidad en los embalses Porce II y III (Antioquia, Colombia)

open access: yesRevista Colombiana de Biotecnología
Los embalses Porce II y III (Antioquia, Colombia) presentan contaminación por actividades antropogénicas que deterioran la calidad hídrica y amenazan la biodiversidad.
Luisa F. Londoño-Ramírez   +5 more
doaj   +1 more source

Comparative Epidemiological Studies on Gallbladder Cancer between Chile and Japan

open access: yesEstudios Atacameños, 1998
Se ha realizado un estudio del cáncer vesicular entre 1991 y 1998 en Chile. Presentamos los principales hallazgos encontrados en esta investigación y se comparan con los datos equivalentes de Japón. 1) Hemos examinado el índice de mortalidad del cáncer
Masaharu Yamamoto   +6 more
doaj   +1 more source

Die Vorhersage der Schwierigkeit deutscher C-Test-Texte: Untersuchungen am Beispiel des onDaF [PDF]

open access: yesZeitschrift für Interkulturellen Fremdsprachenunterricht, 2016
C-Tests sind Lückentests zur schnellen und zuverlässigen Messung der allgemeinen Sprachkompetenz. Obwohl die Tests bereits hinsichtlich vieler verschiedener Aspekte untersucht wurden, konnte die Frage, warum manche C-Test-Texte schwieriger sind als andere, noch nicht hinreichend beantwortet werden.
openaire   +2 more sources

Five‐Year Disease Progression in Synuclein Seeding Positive Sporadic Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To provide a comprehensive description of disease progression in synuclein seeding assay (SAA) positive sporadic Parkinson Disease participants, using Neuronal Synuclein Disease integrated biological and functional impairment staging framework.
Paulina Gonzalez‐Latapi   +19 more
wiley   +1 more source

Cracking the Code: Genotype–Phenotype Correlation Models in Sarcoglycanopathies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Sarcoglycanopathies are among the most severe limb‐girdle muscular dystrophies (LGMD), though milder presentations have been described. These diseases are primarily caused by missense variants, but the limited predictability of their effect on protein maturation, complex formation, and transport has hindered reliable genotype ...
Leonela Luce   +72 more
wiley   +1 more source

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp   +4 more
wiley   +1 more source

Evaluación del potencial genotóxico de fitoproductos autóctonos activos Contra Leishmania y Trypanosoma mediante el Test de Ames y el Ensayo Cometa

open access: yesActualidades Biológicas, 2006
La Leishmaniosis y la enfermedad de Chagas son causas de importantes morbilidad y mortalidad en Colombia y en países tropicales. Los tratamientos existentes son insatisfactorios mientras que la enorme biodiversidad en nustro medio aparece como una fuente
Juliana Navarro-Yepes   +3 more
doaj  

Prodromal Lewy Body Disorder Features in REM Sleep Behavior Disorder With Biomarker‐Defined Synucleinopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Isolated rapid eye movement sleep behavior disorder (iRBD) is a prodromal state for Lewy body disorders and exhibits biological heterogeneity that may influence clinical expression and progression. We examined clinical features in individuals with iRBD and biomarker‐defined synucleinopathy.
Daniel Weintraub   +24 more
wiley   +1 more source

¿Nos encontramos frente a una nueva clase de mutagenos?

open access: yesRevista de Química, 1990
El 1 ,3-dinitronaftaleno, previamente identificado en polvo ambiental, forma aductos covalentes con nucleótidos del DNA a temperatura ambiente fácilmente.
Oscar R. Cuyubamba   +3 more
doaj  

Fallzahlkorrektur bei Powerverlust durch Imbalancen der Blockrandomisation am Beispiel des t-Tests

open access: yes, 2017
62. Jahrestagung der Deutschen Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie e.V. (GMDS)
Muche, R, Rohlmann, F, Dreyhaupt, J
openaire   +2 more sources

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