Repositorio UMAYOR: Envíos recientes
Mostrando ítems 6541-6560 de 8244
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Application of the EROD-H4IIE bioassay for the determination of dioxins in pork in comparison to high resolution gas chromatography coupled to high resolution mass spectrometry
(CIENCIAS, 2013)El bioensayo EROD-H4IIE se utiliza en la detección de hidrocarburos halogenados planares, presentando ventajas sobre la química analítica, como velocidad, simplicidad, precisión, alta sensibilidad y bajo costo, siendo un ... -
Application of a model to estimate total concentrations of dioxins and DL-PCBs in pork production in Chile
(CIENCIAS, 2013)En la presente investigación se desarrolló un modelo para estimar la concentración total o CTotal de dioxinas (PCDD), furanos (PCDF) y bifenilos policlorados similares a dioxinas (DL-PCBs) en la carne de cerdo. El modelo ... -
ALS-linked protein disulfide isomerase variants cause motor dysfunction
(CIENCIAS, 2016)Disturbance of endoplasmic reticulum (ER) proteostasis is a common feature of amyotrophic lateral sclerosis (ALS). Protein disulfide isomerases (PDIs) are ER foldases identified as possible ALS biomarkers, as well as ... -
Adventitious root initiation in adult and juvenile cuttings of Guindilia trinervis, an endemic plant of Chile suitable for biodiesel production.
(CIENCIAS, 2010)Guindilia trinervis es un arbusto silvestre nativo de Chile productor de semillas con alto contenido de aceite y aptitudes para producción de biodiésel. En este estudio se investigó la capacidad de propagar vegetativamente ... -
A functional ferric uptake regulator (Fur) protein in the fish pathogen Piscirickettsia salmonis
(CIENCIAS, 2016)Piscirickettsia salmonis, a Gram-negative fastidious facultative intracellular pathogen, is the causative agent of the salmonid rickettsial septicemia (SRS). The P. salmonis iron acquisition mechanisms and its molecular ... -
A Novel Method to Predict Genomic Islands Based on Mean Shift Clustering Algorithm
(CIENCIAS, 2016)Genomic Islands (GIs) are regions of bacterial genomes that are acquired from other organisms by the phenomenon of horizontal transfer. These regions are often responsible for many important acquired adaptations of the ... -
A comparative performance analysis of total PSA, percentage free PSA, PSA velocity, and PSA density versus the detection of primary circulating prostate cells in predicting initial prostate biopsy findings in chilean men
(CIENCIAS, 2014)Introduction. PSA parameters have been used in an attempt to improve the diagnostic yield of prostate screening tests; the detection of primary malignant circulating prostate cells (CPCs) may improve the diagnostic yield ... -
Aberrant localization of ezrin correlates with salivary acini disorganization in Sjogren's Syndrome
(CIENCIAS, 2010)OBJECTIVES: To analyse whether the alterations in the structure and organization of microvilli in salivary acinar cells from SS patients are linked to changes in the expression and/or cellular localization of ezrin. METHODS: ... -
Aboveground biomass estimation in intervened and non-intervened Nothofagus pumilio forests using remotely sensed data
(CIENCIAS, 2012)Forest inventory data can be used along with remotely sensed data to estimate biomass and carbon stocks over large and inaccessible forested areas. In this study, the relationship between satellite-derived multispectral ... -
A clinical predictive score for mood disorder risk in low-income primary care settings
(CIENCIAS, 2013)BACKGROUND: Despite availability of validated screening tests for mood disorders, busy general practitioners (GPs) often lack the time to use them routinely. This study aimed to develop a simplified clinical predictive ... -
Oxidative Stress Based-Biomarkers in Oral Carcinogenesis: How Far Have We Gone?
(CIENCIAS, 2012)Oral cancer accounts for 2-3% of all malignancies and according to the World Health Organization (WHO) is the fifth most common cancer worldwide. On the other hand, "oxidative stress" implies a cellular state whereby ... -
High quality RNA extraction from Maqui berry for its application in next-generation sequencing
(CIENCIAS, 2016)Maqui berry (Aristotelia chilensis) is a native Chilean species that produces berries that are exceptionally rich in anthocyanins and natural antioxidants. These natural compounds provide an array of health benefits for ... -
Patients With Temporomandibular Disorders Have Increased Fatigability of the Cervical Extensor Muscles
(CIENCIAS, 2012)OBJECTIVES: To determine whether patients with myogenous and mixed temporomandibular disorders (TMD) have greater fatigability of the cervical extensor muscles while performing a neck extensor muscle endurance test (NEMET) ... -
IgE serum concentration against airborne fungi in children with respiratory allergies
(CIENCIAS, 2016)Background: To evaluate total and specific E immunoglobulin (IgE) antibody concentrations in underage subjects with respiratory allergic diseases. Methods: This study was a transversal-type study in 100 underage subjects ... -
Honeybee health in South America
(CIENCIAS, 2016)Honeybees are essential components to modern agriculture and economy. However, a continuous increase in cases of colony losses and colony depopulation are being reported worldwide. This critical situation has put the fragile ... -
Basal lamina disorganisation of the acini and ducts of labial salivary glands from patients with Sjogren's syndrome: association with mononuclear cell infiltration
(CIENCIAS, 2006)Objective: To study the expression of laminin and type IV collagen as biomarkers of the organisation of the basal lamina of acini and ducts in labial salivary glands from patients with Sjögren’s syndrome, and to relate ... -
Identification of Thiotetronic Acid Antibiotic Biosynthetic Pathways by Target-directed Genome Mining
(CIENCIAS, 2015)Recent genome sequencing efforts have led to the rapid accumulation of uncharacterized or "orphaned" secondary metabolic biosynthesis gene clusters (BGCs) in public databases. This increase in DNA-sequenced big data has ... -
FBN-1, a fibrillin-related protein, is required for resistance ofthe epidermis to mechanical deformation during c. Elegans embryogenesis
(CIENCIAS, 2015)During development, biomechanical forces contour the body and provide shape to internal organs. Using genetic and molecular approaches in combination with a FRET-based tension sensor, we characterized a pulling force exerted ... -
Does refurbishing composites lead to short-term effects or long-lasting improvement?
(CIENCIAS, 2015)Purpose: To evaluate the clinical performance of refurbished resin composite restorations compared to untreated (negative control) restorations over a period of 10 years. Methods: 26 subjects (having a total of 52 composite ... -
Altered potassium channel distribution and composition in myelinated axons suppresses hyperexcitability following injury
(CIENCIAS, 2016)Neuropathic pain following peripheral nerve injury is associated with hyperexcitability in damaged myelinated sensory axons, which begins to normalise over time. We investigated the composition and distribution of ...