Revistas académicas de la Universidad Católica del Norte
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No full textDetrás de toda actividad académica hay siempre un paciente trabajo de investigación. De allí que hayamos dedicido mostrar, en una mirada todavía muy parcial, qué motivaciones respaldan el trabajo de nuestros alumnos y académicos
Significados de jóvenes estudiantes de Ocotlán, México y Antofagasta, Chile sobre el inicio sexual: Una aproximación desde el feminismo decolonial
Get PDFOBJECTIVE: To understand the meanings and experiences 15 to19 year-old Mexican and Chilean students have regarding sexual initiation. METHOD: The study was approached from the socio-critical and the interpretivist paradigms as well as from the decolonial feminism perspective (Denzin & Lincon, 2000). The sample was composed of 54 students from public and private schools in Ocotlan and Antofagasta. The analysis was conducted following Montañez’s 2013 Analysis of Discursive Positions. FINDINGS: Chilean and Mexican students share some discursive positions such as the romantic, the normative, the mercantilist, the erotic, and the day-to-day one. CONCLUSIONS: There appears to be a global imaginary of gender in all of Latin America, which might not be fully identical but does share some similarities. This leads us to believe that nowadays there is indeed a common notion of the system or world.OBJETIVO: la investigación la realicé con la finalidad de comprender los significados y las experiencias que jóvenes estudiantes de 15 a 19 años mexicanos y chilenos tienen asociadas con el inicio sexual. MÉTODO: investigué desde los paradigmas socio-critico e interpretativo, específicamente con modelo cualitativo y perspectiva feminista decolonial (Denzin y Lincon, 2000). Conté con un total de 54 participantes provenientes de colegios públicos y privados de Ocotlán, México y Antofagasta, Chile. Para el análisis del corpus documental me adscribí al análisis de posiciones discursivas (Montañez, 2013). HALLAZGOS: entre los hallazgos, identifico que emergen posiciones discursivas compartidas tanto entre jóvenes ocotlenses como antofagastinos tales como: romántica, la normativa performativa costumbrista, la mercantilista, la cotidiana y la erótica compartida. CONCLUSIONES: se advierte la presencia de un imaginario de género que si bien no es idéntico en todos los casos, sí que atraviesa mediante semejanzas a Latinoamérica, y que nos hace pensar que en los tiempos actuales opera sobre los campos de investigación una noción común de sistema/mundo
Historias de familias de hijos con discapacidad: Caminos de otredad y soledad
Get PDFINTRODUCTION: The study analyzes the significance of the experience of being parents of children with hearing impairment. METHOD: The interpretative work is conducted through interviews with two families focused. The information obtained was analyzed by understanding the records, their integration into categories, its definition and interpretation. RESULTS: Three large thematic blocks are appreciated: Family history. Other community and integration and individualism and loneliness; Married life and the place of the child; and the search, which shows how childhood experience of each of the parents, is the footprint on the psychic structure of the child, spousal and parental loop is configured, promoting different ways of sense. DISCUSSION: From psychology, it is possible to provide spaces for listening, sharing towards the development of new meanings of their own history, as well as those that emerge from the breeding and training of a disabled child.INTRODUCCIÓN: El estudio analiza la significación de la experiencia de ser padres de hijos con discapacidad auditiva. MÉTODO: El trabajo es de tipo interpretativo, realizado mediante entrevistas enfocadas con dos familias. La información obtenida se analizó mediante la comprensión de los registros, su integración en categorías, su delimitación e interpretación. RESULTADOS: se aprecian tres grandes bloques temáticos: Historia familiar. Colectividad e integración al otro e individualismo y soledad; La vida en pareja y el lugar del hijo; y, La búsqueda, en los que se aprecia cómo la experiencia infantil de cada uno de los padres, es la huella sobre la que se configura la estructuración psíquica de los hijos, el lazo conyugal y parental, promoviendo distintos caminos de sentido. DISCUSIÓN: Desde la psicología, es posible proveerles de espacios de escucha, de compartimiento hacia la elaboración de nuevas significaciones de su propia historia, así como de aquellas que emergen de la crianza y formación de un hijo con discapacidad.
 
Strongly Bounded Partial Sums
No full textIf λ is a scalar sequence space, a series P Zj in a topological vector space Z is λ multiplier convergent in Z if the series P ∞J =1 tj Zj converges in Z for every t = {tj} ∈ λ-If λ satisfies appropriate conditions, a series in a locally convex space X which is λ multiplier convergent in the weak topology is λ multiplier convergent in the original topology ofthe space (the Orlicz-Pettis Theorem) but may fail to be λ multiplier convergent in the strong topology of the space. However, we show under apprpriate conditions on the multiplier space λ that the series will have strongly bounded partial sums
Sum divisor cordial labeling for star and ladder related graphs
No full textA sum divisor cordial labeling of a graph G with vertex set V is a bijection f from V to {1, 2, . . . , |V(G)|} such that an edge uv is assigned the label 1 if 2 divides f (u) + f (v) and 0 otherwise; and the number of edges labeled with 0 and the number of edges labeled with 1 differ by at most 1. A graph with a sum divisor cordial labeling is called a sum divisor cordial graph. In this paper, we prove that D2(K1,n), S' (K1,n), D2(Bn,n), DS(Bn,n), S' (Bn,n), S(Bn,n), < K(1)1,nΔK(2)1,n>, S(Ln), Ln O K1, SLn, TLn, TLn O Ki and CHn are sum divisor cordial graphs
Representation fields for orders of small rank
No full textA representation field for a non-maximal order H in a central simple algebra is a subfield of the spinor class field of maximal orders which determines the set of spinor genera of maximal orders representing H. In our previous work we have proved the existence of the representation field for several important families of suborders, like commutative orders, while we have also found examples where the representation field fails to exist. To be precise, we have found full-rank orders, in central simple algebras of dimension 9 or larger over a suitable field, whose representation field is undefined. In this article, we prove that the representation field is defined for any order H of rank r < 7. This is done by defining representation fields for arbitrary representations of orders into central simple algebra and showing that the computation of these generalized representation fields can be reduced to the case of irreducible representations. The same technique yields the existence of representation fields for any order in an algebra whose semi-simple reduction is commutative. We also construct a rank-8 order, in a 16-dimensional matrix algebra, whose representation field is not defined
Jensen’s and the quadratic functional equations with an endomorphism
No full textWe determine the solutions f : S → H of the generalized Jensen’s functional equation f (x + y) + f (x + φ(y)) = 2f (x), x,y ∈ S,and the solutions f : S → H of the generalized quadratic functional equation f (x + y) + f (x + φ(y)) = 2f (x) + 2f (y), x,y ∈ S,where S is a commutative semigroup, H is an abelian group (2-torsion free in the first equation and uniquely 2-divisible in the second) and φ is an endomorphism of S
Realizability by symmetric nonnegative matrices
No full textLet ? = {?1, ?2,...,?n} be a set of complex numbers. The nonnegative inverse eigenvalue problem (NIEP) is the problem of determining necessary and sufficient conditions in order that ? may be the spectrum of an entrywise nonnegative n × n matrix. If there exists a nonnegative matrix A with spectrum ? we say that ? is realized by A. If the matrix A must be symmetric we have the symmetric nonnegative inverse eigenvalue problem (SNIEP). This paper presents a simple realizability criterion by symmetric nonnegative matrices. The proof is constructive in the sense that one can explicitly construct symmetric nonnegative matrices realizing ?
Generalization of the second trace form of central simple algebras in characteristic two
No full textLet F be a field with characteristic two. We generalize the second trace form for central simple algebras with odd degree over F. We determine the second trace form and the Arf invariant and Clifford invariant for tensor products of central simple algebras
On certain properties of some generalized special functions
No full textIn this paper, we derive a result concerning eigenvector for the product of two operators defined on a Lie algebra of endomorphisms of a vector space. The results given by Radulescu, Mandal and authors follow as special cases of this result. Further using these results, we deduce certain properties of generalized Hermite polynomials and Hermite Tricomi functions