Search results for "Complement"
showing 10 items of 2113 documents
cDNA cloning and deduced amino acid sequence of a major, glycine-rich cuticular protein from the coleopteran Tenebrio molitor. Temporal and spatial d…
1992
0014-2956 (Print) Journal Article Research Support, Non-U.S. Gov't; In Coleoptera, the elytra (forewings), with a very hard and thick cuticle, protect the membranous and delicate hindwings against mechanical stress. We have isolated and characterized a cDNA encoding a major cuticle protein in Tenebrio molitor, named ACP-20. The deduced amino acid sequence is roughly tripartite, with two terminal glycine-rich domains and a central region showing pronounced similarities with some other hard cuticle proteins. Northern blot and in situ hybridization analyses reveal that ACP-20 gene expression is developmentally regulated since transcript accumulation occurs only in epidermal regions synthesizin…
Boundary accessibility and elliptic harmonic measures
1988
Suppose G is a bounded domain in R n such that the complement of G satisfies a capacity dcnsity condition. It is shown that all elliptic measures in G have a support set with Moreover, the capacity density condition cannot be removed. A nonlinear version of the result is also given.
Utilización de una herramienta online para la realización de tutorías remotas: una experiencia práctica
2010
La plataforma Elluminate Live! es un producto comercial diseñado específicamente para la impartición de clases virtuales y la video conferencia entre múltiples usuarios. En este artículo, analizamos su uso en el contexto de la realización de tutorías remotas en la asignatura “Informática”, de primer curso de la titulación de Licenciatura en Matemáticas en la Universidad de Valencia. Además de constituir una alternativa viable como complemento a las tutorías presenciales, el uso de la herramienta proporciona una serie de ventajas con respecto a éstas. Entre ellas destaca la posibilidad de supervisar el trabajo de varios alumnos de forma simultánea, de realizar explicaciones a grupos y de fac…
New Alkenylresorcinols with Cytotoxic and Antimicrobial Activities from the Leaves of Embelia schimperi.
2020
AbstractA phytochemical study of the methanol extract of the leaves of Embelia schimperi resulted in the isolation of three new alkenylresorcinols, 1 – 3, together with the known analogs 4 – 7. Their structures were established by a combination of spectroscopic techniques. Compounds 1 – 7 exhibited moderate cytotoxic activity against human cervical cancer cells HeLa-S3 and more pronounced antimicrobial properties towards bacteria and filamentous fungi. The present study falls into an ongoing research project on the characterization of bioactive phenolic lipids from plants of the family Primulaceae.
Inhibitory activities of short linear motifs underlie Hox interactome specificity in vivo
2015
Hox proteins are well-established developmental regulators that coordinate cell fate and morphogenesis throughout embryogenesis. In contrast, our knowledge of their specific molecular modes of action is limited to the interaction with few cofactors. Here, we show that Hox proteins are able to interact with a wide range of transcription factors in the live Drosophila embryo. In this context, specificity relies on a versatile usage of conserved short linear motifs (SLiMs), which, surprisingly, often restrains the interaction potential of Hox proteins. This novel buffering activity of SLiMs was observed in different tissues and found in Hox proteins from cnidarian to mouse species. Although th…
saliva, a new Drosophila gene expressed in the embryonic salivary glands with homologues in plants and vertebrates.
1998
saliva (slv) transcription begins at the salivary gland placodes and continues on throughout development as salivary glands invaginate and reach their final location and morphology. saliva is located cytogenetically in 76A/B, and encodes a 226-amino-acid protein with four hydrophobic domains. A Northern blot detects a 1.6-kb transcript throughout development. Database similarity searches reveal homology to proteins from Caenorhabditis, Lilium, Medicago and mouse.
Perfil sociodemográfico del usuario de la homeopatía en España
2019
Resumen: Objetivo: Identificar el perfil sociodemográfico del usuario de la homeopatía en España. Diseño: Estudio cuantitativo. Emplazamiento: España. Corpus: Base de datos del Centro de Investigaciones Sociológicas (Estudio 3205, febrero de 2018), con un total de 2.486 entrevistas, y se analiza una submuestra (n = 124), que agrupa a todos los ciudadanos que afirman que han usado la homeopatía en España en los 12 meses anteriores. Mediciones principales: Se utilizaron los porcentajes, las medias y/o la desviación estándar de las medias, así como la significación de los cambios en las distintas variables analizadas entre la población en general y los usuarios específicos de la homeopatía en …
Modulation of Diabetes by Natural Products and Medicinal Plants via Incretins
2019
Incretins are metabolic hormones released after a meal that increase insulin secretion from pancreatic β-cells. The two main incretins are the intestinal peptides glucagon-like peptide-1 and glucose-dependent insulinotropic polypeptide. Both induce a decrease in glycemia, slow down the absorption of nutrients, and are inactivated by the enzyme dipeptidyl peptidase-4. Recently, incretin-based therapies have become a useful tool to treat diabetic patients, and different studies have focused on the identification of glucagon-like peptide-1 receptor agonists, including those of natural origin. This review focuses on the new findings of medicinal plants and natural products as possible active ag…
Forms and Functions of the Real Estate Market of Palermo (Italy). Science and Knowledge in the Cluster Analysis Approach
2016
The analysis of the housing market of a city requires suitable approaches and tools, such as data mining models, to represent its complexity which derives on many elements, e.g. the type of capital asset-house is a common good and an investment good as well, the heterogeneity of the urban areas—each of them has own historical and representative values and different urban functions—and the variability of building quality. The housing market of the most densely populated area of Palermo (Italy), corresponding to ten districts, is analyzed to verify the degree of its inner homogeneity and the relations between the quality of the characteristics and the price of the properties. Five hundred set…
Epistemologia dell’insegnante di matematica sulla sua conoscenza professionale. (Parte I: Quadro teorico e rassegna di alcuni risultati di ricerca).
2007
In this research the mathematics teacher’s point of view is investigated on his professional knowledge. In particular: What does he mean for “professionalism”? Does he really perceive himself as a “professional”? And how does he perceive himself as a “professional” or non a “professional”? Of what nature is his professional knowledge? On which bases are his professional practices founded? What are the sources and the limits of this knowledge? What, if any, epistemological status do his beliefs regarding the term “professional” have? The mathematics teacher’s epistemology, then, is the leading thread of the whole research. The data obtained about the teacher’s knowledge and beliefs are inter…