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Search Results: 1 - 10 of 2061 matches for " AURORA; OLIVA "
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1, 5-BIS [(4-DITHIOCARBOXYLATE-1-DODECYL-5-HYDROXY-3-METHYL)PYRAZOLYL] PENTANE AS COPPER CORROSION INHIBITOR IN 0.1 M SULPHURIC ACID 1, 5-Bis [(4-Dithiocarboxylat-1-dodecyl-5-Hydroxy-3-METHYL) PYRAZOLYL] Pentan als Kupferkorrosionsinhibitor in 0,1 M SCHWEFELS URE
Rosa Vera, Alfonso Oliva and Aurora Molinari
Heterocyclic Letters , 2011,
Abstract: The ability of tetradentate ligand 1,5-bis[(4-dithiocarboxylate-1-dodecyl-5-hydroxy-3- methyl)pyrazolyl]pentane (H2BDTCPP) as organic surface coating to inhibit the copper corrosion in 0.1 M H2SO4 have been studied. The inhibitory properties were studied by immersion assays and the results show that H2BDTCPP behaves as a mixed inhibitor in 0.1 M H2SO4 aqueous solution, with an inhibition efficiency of 62.1 %, increasing the corrosion potential and decreasing the corrosion current of copper when it is coated over the metal surface. These properties can be attributed to the planar aromatic structure of the pyrazolyldithiocarboxylate group and to the high π/lone-pair electron density due to nitrogen, oxygen and sulphur which favour its physical and chemical adsorption.
COPPER(II) COMPLEX WITH THE TETRADENTATE LIGAND 1,5-BIS (4-DITHIOCARBOXYLATE-1-DODECYL-5-HYDROXY-3-METHYLPYRAZOLYL)PENTANE. LIQUID-LIQUID EXTRACTION STUDY
OLIVA,ALFONSO; MOLINARI,AURORA; AVILA,CAROLINA; FLORES,MARIA FERNANDA;
Journal of the Chilean Chemical Society , 2006, DOI: 10.4067/S0717-97072006000200006
Abstract: the synthesis of the complex and the solvent extraction behaviour of copper(ii) from acid solution (ph 0-5) was studied with the new reagent 1,5-bis(4-dithiocarboxylate-1-dodecyl-5-hydroxy-3-methylpyrazolyl)pentane (h2dtc) as extractant. the reagent acts as tetradentate ligand and the extracted specie was found to be cudtc
FURTHER STUDIES ON THE SOLVENT EXTRACTION OF COPPER (II) WITH DITHIOCARBOXYLATE DERIVATIVES OF PYRAZOL
LOPEZ,CLAUDIO; PONCE,PATRICIO; MOLINARI,AURORA; OLIVA,ALFONSO;
Boletín de la Sociedad Chilena de Química , 2001, DOI: 10.4067/S0366-16442001000100015
Abstract: the solvent extraction behaviour of cu(ii), with 4-alkyldithiocarboxylate derivatives of pyrazol (hdtc ; alkyl = benzyl, allyl, n-hexadecyl , n-octadecyl) was studied as a function of ph. cu(ii) is efficiently extracted ( 3 80% ) in the ph range studied. in all cases the extracted specie was found to be cu(dtc)2
FURTHER STUDIES ON THE SOLVENT EXTRACTION OF COPPER (II) WITH DITHIOCARBOXYLATE DERIVATIVES OF PYRAZOL
CLAUDIO LOPEZ,PATRICIO PONCE,AURORA MOLINARI,ALFONSO OLIVA
Boletín de la Sociedad Chilena de Química , 2001,
Abstract: The solvent extraction behaviour of Cu(II), with 4-alkyldithiocarboxylate derivatives of pyrazol (HDTC ; alkyl = benzyl, allyl, n-hexadecyl , n-octadecyl) was studied as a function of pH. Cu(II) is efficiently extracted ( > or = 80% ) in the pH range studied. In all cases the extracted specie was found to be Cu(DTC)2 Se ha estudiado la extracción por solvente de Cu(II) con 4-alquilditio-carboxilatos derivados de pirazol (HDTC; alquil = bencil, alil, n-hexadecil, n-octadecil) en función del pH) Cu(II) es extraído eficientemente ( > o = 80% ) en el rango de pH estudiado y en todos los casos se ha encontrado que la especie extraída a la fase orgánica es del tipo Cu(DTC)2
COPPER(II) COMPLEX WITH THE TETRADENTATE LIGAND 1,5-BIS (4-DITHIOCARBOXYLATE-1-DODECYL-5-HYDROXY-3-METHYLPYRAZOLYL)PENTANE. LIQUID-LIQUID EXTRACTION STUDY
ALFONSO OLIVA,AURORA MOLINARI,CAROLINA AVILA,MARIA FERNANDA FLORES
Journal of the Chilean Chemical Society , 2006,
Abstract: The synthesis of the complex and the solvent extraction behaviour of copper(II) from acid solution (pH 0-5) was studied with the new reagent 1,5-bis(4-dithiocarboxylate-1-dodecyl-5-hydroxy-3-methylpyrazolyl)pentane (H2DTC) as extractant. The reagent acts as tetradentate ligand and the extracted specie was found to be CuDTC
2,3-FUNCTIONALLY DIALKYL-1,4-BENZOHYDROQUINONE DIACETATE DERIVATIVES FROM CLEAVAGE OF EPOXIDES
AURORA MOLINARI,ALFONSO OLIVA,NANET AGUILERA,JOSE Ma MIGUEL DEL CORRAL
Boletín de la Sociedad Chilena de Química , 2001,
Abstract: Several new 2,3-functionally dialkyl-1,4-benzohydroquinone diacetates have been prepared by oxidative cleavage of epoxide compounds III, obtained from the Diels-Alder condensation product between the monoterpene myrcene and 1,4-benzoquinone. The nature of the isolated products is depending of the functionality of the side chain Se han preparado una serie de nuevos compuestos del tipo diacetatos de 1,4-benzohidroquinona-2,3-dialquilsustituídos, por oxidación degradativa de epóxidos III, obtenidos del producto de condensación Diels-Alder entre el monoterpeno mirceno y la 1,4-benzoquinona. La naturaleza de los productos aislados depende de los grupos funcionales presentes en las cadenas alquílicas
Education to Theatricality inside Secondary School, Art and Body  [PDF]
Gaetano Oliva
Creative Education (CE) , 2014, DOI: 10.4236/ce.2014.519197
Abstract: The aim of this study was to present results of Education to Theatricality (IT: Educazione alla Teatralità) as scientific research and innovative pedagogy in the sector of the education of the person. Education to Theatricality has a lot of purposes to contribute to the psycho-physic well-being of each person; particularly it wants to help everyone to realize himself, as human being and as social actor; it wants to give everybody the chance to reveal his own diversity and specificity, because everybody has a message to convey through his body and his voice. The Education to Theatricality wants to stimulate skills, it wants to develop a better awareness of interpersonal relationships; it wants also give space to the assignment meaning process, because it considers “doing” as important as thinking, which permits to develop awareness about personal acts. Education to Theatricality is a science that includes pedagogy, sociology, human sciences, psychology and performative art in general. The scientific nature of this discipline allows to apply it to the most part of the contexts and of the persons, because it has in the centre of its pedagogical process the human being, as such he is and not necessarily with any skill. The training of the actor-person is one of the most important principles of the Education to Theatricality: the most important purpose is the development of the creativity and the imagination through a work, based on scientific principles that the actor-person leads on himself. The ultimate aim of this science is not to transform the human in an actor-object, shaping him just for packed shows that can be easily sold, but to allow him to enhance his own qualities respecting his personality. The theatrical activity in the school and in the educational centers for children teenagers stimulates and protects the inventive skills of the students.
Education to Theatricality and Neutral Mask: Psycho-Pedagogical Approach  [PDF]
Gaetano Oliva
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.711169
Abstract: Education to Theatricality is pedagogical and artistic research; it is a science that includes different disciplines such as pedagogy, sociology, human sciences, psychology and the performing arts in general. The scientific basis of this discipline allows us to apply it in all possible contexts and with any individual, because it keeps the man in the center of its pedagogical process. One of the fundamental principles of Education to Theatricality is the development of the actor-person; the main aim is the development of creativity and imagination through a scientific training led by the actor on himself. This article introduces and analyses the Neutral Mask as an important element of theatrical pedagogy in relationship to its psyco-pedagogical aspect and as an educative instrument to train a person and to improve the development of creativity. The state of rest, calm, relaxing or suppleness silence is the starting point of every expression. The exercises with the neutral mask help students to investigate their inner world. When you wear the mask, you destroy the conception of time and of normally shared space, and the student has the opportunity to “dig” inside himself, facing his own identity. This essay presents the birth of the Neutral Mask in the Vieux Colombier School in Paris and explains its role in Jacques Copeau’s pedagogy; then the article analyses the psycho-pedagogical elements that characterize its use in a laboratory of expressive arts; it gives a definition of laboratory and gives some exercises; in the end it specifies the role of masks in the dramatic play. Education to Theatricality as pedagogy uses the expressive arts into the theatre workshop to lead the subject onto a path of growth and training, activating the original potential skills of this person. An instrument such as the Neutral Mask, used during a theatrical workshop, allows to develop a greater self-awareness. By learning a silent language, a student can deepen the perception of his body and of his self-awareness through the use of Neutral Mask during a theatre workshop.
2,3-FUNCTIONALLY DIALKYL-1,4-BENZOHYDROQUINONE DIACETATE DERIVATIVES FROM CLEAVAGE OF EPOXIDES
MOLINARI,AURORA; OLIVA,ALFONSO; AGUILERA,NANET; MIGUEL DEL CORRAL,JOSE Ma; GORDALIZA,MARINA; CASTRO,Ma ANGELES; GARCIA-GRAVALOS,Ma DOLORES; SAN FELICIANO,ARTURO;
Boletín de la Sociedad Chilena de Química , 2001, DOI: 10.4067/S0366-16442001000100007
Abstract: several new 2,3-functionally dialkyl-1,4-benzohydroquinone diacetates have been prepared by oxidative cleavage of epoxide compounds iii, obtained from the diels-alder condensation product between the monoterpene myrcene and 1,4-benzoquinone. the nature of the isolated products is depending of the functionality of the side chain
Association of Socioeconomic Factors to Domestic Violence and Murder of Women: The Case of Yucatán, México  [PDF]
Yolanda Oliva Pe?a
Psychology (PSYCH) , 2016, DOI: 10.4236/psych.2016.714175
Abstract: Registration of deaths classified as femicide, is an issue that occupies a breach of law, and that in this matter inconsistencies and absences in the information generated persist and persist in popular culture a strong stigma that various social groups and affected (victims) lead to underreporting of gender violence. Documentary research that conducted to determine the association of geographic areas and social factors related to violence to women occurred in the state of Yucatan during 2004 to 2014. Of the major findings of this study are: there are significant differences in the presence of domestic violence with the economic sector with a value of the test statistic of 13,500 with two degrees of freedom, a significant difference with a P-value of 0.001 (P-value < 0.05) was obtained, and P-value 0.000 (P-value < 0.05) for the murders of women. Geospatial distribution shows that the municipalities highest number of cases reported are found in large cities, and related to the three sectors of economic activity. Geographical distribution is North, South and East of the state. We conclude that it is required to have a surveillance system for the prevention of gender violence, also provide therapy to both men and women who have lived or have used violence systematically and taught by trained and sensitive to provide such care staff, and thus prevent deaths from gender violence.
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