Dadonim Vila Morales; Herminia Hernández Fernández
El perfil profesional constituye un modelo, una idealización de las características, conocimientos, habilidades que debe poseer el egresado de cualquier nivel de estudios tanto terciario como del cuarto nivel. La Facultad de Estomatología de la Universidad de Ciencias Médicas de La Habana ha estado trabajando en pro de desarrollar un doctorado curricular en ciencias estomatológicas. Esta investigación pedagógica tuvo como propósito analizar teóricamente la importancia del perfil profesional y...
Propuesta de un perfil profesional para el diseño del doctorado curricular colaborativo en estomatología Proposal of a professional profile for the design of the collaborative curricular doctor's degree program in dentistry
Dadonim Vila Morales; Herminia Hernández Fernández
El perfil profesional constituye un modelo, una idealización de las características, conocimientos, habilidades que debe poseer el egresado de cualquier nivel de estudios tanto terciario como del cuarto nivel. La Facultad de Estomatología de la Universidad de Ciencias Médicas de La Habana ha estado trabajando en pro de desarrollar un doctorado curricular en ciencias estomatológicas. Esta investigación pedagógica tuvo como propósito analizar teóricamente la importancia del perfil profesional y...
Gilli, Juan José
La investigación y los estudios de doctorado se encuentran estrechamente vinculados porque tienen el propósito común de crear nuevo conocimiento. En este marco se inserta el nuevo Doctorado en Ciencias de la Gestión que ofrece la Facultad de Ciencias Económicas. (Párrafo extraído del texto a modo de resumen)
Nivia Ernestina Sánchez Fernández
Este artículo es el trabajo de culminación del módulo Planeamiento educacional, desarrollo, evaluación y diseño curricular perteneciente al plan de estudio del Doctorado Curricular Colaborativo en Ciencias Pedagógicas de la Universidad Pedagógica Frank País García, provincia de Santiago de Cuba. La autora, a partir del artículo Planeamiento Educacional IPLAC, escrito por los doctores Susana Cisneros Garbey., Luis Carlos Batista Rosabal y Roberto Pérez Rosell, en el 2001, hace una reflexión de...
Fraga Filho, C; Rosa, A R
Advocating the thesis that the planning of medical education must be oriented toward the articulastion of instruction with care, the authors note that the curricular reforms of the last 25 years, though reflected in the teaching-learning process, have led to no improvement in medical practice or in the health of the population. This failing, they assert, stems from the fact that these reforms begin and end within the educational institution itself, and ignore the interrelations between the education system and the user of the professional, and results in the production of physicians who are individualistic and of narrow vision. The article refers to the slight importance attached to the complementarity and interdependence of teaching and care work, and to the restriction of teaching to episodic contacts between specialized professors and groups of anonymous students, each in the limited confines of his own discipline, and the relegation of the student to the status of spectator and possible assistant in care work entrusted to him without any responsibility. PMID:7398573
Pityriasis alba is a skin disease, commonly seen in children and young adults. This case presents the ocular association of this disease in a 10 years old Pakistani male. Ocular features in this case were poliosis, tilted disc, high myopia and chorioretinal degeneration. Tilted discs and high myopia can be coincidental but poliosis and decreased pigment in retinal pigment epithelium are closely related with the hypopigmentation seen in this disease. (author)
Kelley, Katherine A.; McAuley, James W.; Wallace, Lane J.; Frank, Sylvan G.
Curricular maps can be used to link ability-based outcomes (ABOs) and content to courses in PharmD curricula as one component of an overall assessment plan. Curricular maps can also be used to meet some of the requirements delineated by Accreditation Council for Pharmacy Education, Standards 2007. Five steps can be followed to help ensure the successful production of a curricular map that both meets accreditation requirements and helps to inform curricular improvements. A case study is presen...
Full Text Available La Mención de Calidad, concedida por la Agencia Nacional de Evaluación de la Calidad y Acreditación, supuso el reconocimiento a la solvencia científico-técnica y formadora de los programas de doctorado de las universidades españolas. Desde el curso 2003-2004, el número de programas con esta distinción aumentó en un 60%. Se analizaron 671 programas de doctorado a los que se les concedió la Mención de Calidad en la última convocatoria de 2007. La información se recogió a través de las páginas webs de todos los programas, la legislación de la universidad a la que pertenecen y a partir de una encuesta online enviada a los coordinadores. En los resultados se observan aspectos relacionados con los rasgos generales de los programas de doctorado, rasgos comunes entre periodo formativo e investigador, rasgos propios de periodo de máster, y por último, rasgos propios del periodo investigador. Finalmente, se discuten estos rasgos estableciendo diferencias entre ambos periodos
Two views of Alba Patera with topography draped over a Viking image mosaic. MOLA data have clarified the relationship between fault location and topography on and surrounding the Alba construct, providing insight into the volcanological and geophysical processes that shaped the edifice. The vertical exaggeration is 10:1.
Nogueira, Marisa A.; Díaz, Gaspar; Sakumo, Luciana; Tagami, Patrícia M.
Lippia alba (Mill.) N. E. Brown. (Verbenaceae) es una especie ampliamente utilizada en la medicina popular en Brasil como digestivo y antiséptico. La caracterización preliminar de los aceites esenciales obtenidos de las partes aéreas de la planta fue realizada por CG/EM. Con estos aceites esenciales se llevaron a cabo los análisis de la actividad antibacteriana. Los resultados encontrados mostraron una amplia actividad antibacteriana, confirmando así el uso de esta planta en la me...
Caridad Alonso Camaraza
En este trabajo se presenta una propuesta de modelo teórico-metodológico para la Licenciatura en Economía. Este modelo, de carácter curricular, es el resultado científico al que se arriba en un proceso investigativo desarrollado como parte de los estudios de doctorado en Ciencias Pedagógicas. El modelo que se propone posee tiene en cuenta el modelo nacional de formación profesional en la Educación Superior de Cuba. Posee una estructura q...
Arturo Barraza Macías
Full Text Available Los objetivos de la presente investigación fueron: identificar el perfil descriptivo del síndrome de burnout y establecer la relación que existe entre dicho síndrome y las variables sociodemográficas (género, edad, relación de pareja y número de hijos y situacionales (doctorado que cursa estudiadas. Para el logro de tales objetivos, se realizó una investigación correlacional, transversal y no experimental a través de la aplicación de la Escala Unidimensional de Burnout Estudiantil a los alumnos de los dos doctorados en educación que existen en la ciudad de Durango. En total, se aplicaron 19 cuestionarios y sus resultados permiten afirmar que existe un nivel leve de burnout en los alumnos encuestados y que el doctorado que cursan establece una diferencia significativa en ese nivel.
Bertha Musi-Lechuga; José Antonio Olivas-Ávila; Alejandro Guillén-Riquelme; Ángel Castro
Algunos estudios han demostrado que la financiación que reciben los programas de doctorado y las universidades influye directamente en su productividad científica. Así, el objetivo de esta investigación es analizar la distribución de los programas de doctorado en Psicología con Mención de Calidad ofrecidos por las universidades españolas en función de la productividad científica de los profesores que participan en ellos y de la financiación que reciben para fomentar la movilidad de profesores...
Full Text Available The aqueous and ethanol extracts of the leaves of Basella alba L. var. alba Wight, Basellaceae, were investigated for antiulcer activity on rats employing the pylorus ligation and ethanol induced ulcer models. The various gastric secretion parameters such as total acidity, free acidity, gastric acid volume, pH and histopathological parameters such as ulcer index and percent protection were comparatively examined between control, test and standard groups. The antiulcer activity of aqueous extract of B. alba (AEBA and ethanol extract of B. alba (EEBA were studied in rats treated with the doses of 1 mL/kg of absolute ethanol, 200 and 400 mg of test extracts and 20 mg/kg of famotidine for control, test and standard groups respectively in both the models. The animals pretreated with AEBA and EEBA showed a dose-dependent protection against gross damaging action of ethanol and pylorus ligation on gastric mucosa of animals. Histopathological evaluation also revealed that Group I treated with absolute ethanol showed severe gastric mucosal damage. The AEBA and EEBA showed 68.25 and 58.11% protection in gastric mucosal damage as compared to control group. Both the extracts of B. alba var. alba were able to decrease the gastric acidity and increase the mucosal defense in the gastric mucosal area. This study indicate that B. alba var. alba possesses significant gastroprotective effect and the same is substantiated by the histopathological examination of the ulcerated stomachs of the animals.
Chies, Claire E.; Cátia S. Branco; Gustavo Scola; Fabiana Agostini; Gower, Adriana E.; Mirian Salvador
Lippia alba is a shrub found in all regions of Brazil and other countries in South and Central America. L. alba exhibits variability among its different accessions, showing differences in morphology and in the composition of its essential oil. This study evaluated the phenolic profiles and the antioxidant activities of seven different accessions of L. alba. The seven accessions of L. alba studied exhibited an important phenolic content, and all accessions demonstrated antioxidant activity wit...
A new model for the evolution of the martian volcano Alba Patera is constructed. Numerous digitate channel networks on the flanks of the volcano are interpreted to be carved by sapping due to the release of nonjuvenile water from unconsolidated flank deposits. The particle size of these deposits is estimated to be 3-10 microns, which, together with theoretical modelling of the disperison of explosively derived volcanic materials, leads to the conclusion that the flank deposits on Alba Patera are low-relief pyroclastic flows. The recognition of numerous late-stage summit and subterminal lava flows thus makes Alba Patera a unique martian volcano that is transitional between the older pyroclastic-dominated highland paterae and the more recent effusive central-vent volcanoes such as the Tharsis Montes. 61 refs
Full Text Available The leaf extracts of Basella alba Linn.var. alba were investigated for In-vitro anti-inflammatory activity by human red blood cell membrane stabilization method (HRBC. The increased use of natural product in the pharmaceutical industry has led to an increase in demand for screening for cost effective, nontoxic bioactive compounds in medicinal plants. Now a day’s many researchers interest is to search medicinal plants with potent therapeutic activity which may lead to the discovery of new therapeutic agent. In this work the methanolic extract of Basella alba (M.E.B.A. and aqueous extract of Basella alba (A.E.B.A. were studied for its in-vitro antiinflammatory activities. The potency of the extracts was compared with standard Diclofenac sodium (50 and 100 @g/ml. The aqueous extract showed the most significant membrane stabilizing action on human red blood cell membrane.
Vijender Kumar; Z. A. Bhat; Dinesh Kumar; Puja Bohra; S. Sheela
The leaf extracts of Basella alba Linn.var. alba were investigated for In-vitro anti-inflammatory activity by human red blood cell membrane stabilization method (HRBC). The increased use of natural product in the pharmaceutical industry has led to an increase in demand for screening for cost effective, nontoxic bioactive compounds in medicinal plants. Now a day’s many researchers interest is to search medicinal plants with potent therapeutic activity which may lead to the discovery of new the...
Vijender Kumar; Z. A. Bhat; Dinesh Kumar; N A Khan; I. A. Chashoo; Irfat Ara
The aqueous and ethanol extracts of the leaves of Basella alba L. var. alba Wight, Basellaceae, were investigated for antiulcer activity on rats employing the pylorus ligation and ethanol induced ulcer models. The various gastric secretion parameters such as total acidity, free acidity, gastric acid volume, pH and histopathological parameters such as ulcer index and percent protection were comparatively examined between control, test and standard groups. The antiulcer activity of aqueous extr...
Arturo Barraza Macías
Full Text Available Los objetivos de la presente investigación fueron identificar el perfil descriptivo del síndrome de burnout y establecer la relación que existe entre dicho síndrome y las variables sociodemográficas y situacionales estudiadas. Para el logro de tales propósitos, se realizó una investigación correlacional, transversal y no experimental a través de la aplicación de la Escala Unidimensional de Burnout Estudiantil a los alumnos de los dos doctorados en educación que existen en la ciudad de Durango, México. Los resultados permiten afirmar que existe un nivel leve de burnout en los alumnos encuestados y que el doctorado que cursan establece una diferencia significativa en ese nivel.
Edmundo Resenos Díaz
Full Text Available El Programa de Doctorado en Ciencias, con especialidad en ciencias administrativas, de la Escuela Superior de Comercio y Administración del Instituto Politécnico Nacional (IPN hasta 1995 era de tipo escolarizado, por asignaturas. El tiempo promedio que consumían los alumnos para concluir el programa y graduarse era de 11 años. En ese año, el IPN autorizó, de manera oficial, establecer el programa reestructurado, nuevo para nuestro ambiente en esa época. Los objetivos principales del programa fueron: a formar investigadores, b incrementar la eficiencia terminal. Los supuestos, hipótesis y estrategias principales que sustentaban la propuesta fueron: - El grado de Doctor en Ciencias es el nivel más elevado de educación formal que existe en el sistema de educación nacional y del mundo. - Los aspirantes que ingresan al programa ya son autodidactas, al menos, saben estudiar por cuenta propia, ostentan un grado de maestría, por lo tanto, pueden adquirir por sí mismos todos los conocimientos, los que les falten o necesiten para culminar su formación. - Los investigadores se forman haciendo investigación, no asistiendo al aula a escuchar profesores doctos que les trasmiten sus conocimientos y experiencias. - La práctica hace al investigador, no los ejercicios y prácticas escolares diseñadas por la experiencia de diversos profesores, que simulan en aula escenarios de la realidad a investigar. - El desarrollo de competencias y aptitudes del Doctor en ciencias. - La calidad se logra con la interdisciplinaridad e interinstitucionalidad nacional. Los resultados principales han sido: a graduar investigadores con grado de Doctor en Ciencias en un tiempo promedio de 4 años; b el incremento de eficiencia terminal ha sido del 275%, de julio de 1995 a agosto de 2003 se han graduado 46 doctores. Esta autoevaluación del programa de doctorado proporciona evidencias de la contribución a la generación de un nuevo paradigma de
Schneeberger, Dale M.; Pieri, David C.
Geomorphic and stratigraphic analysis of Alba Patera suggests a volcanic construct built by lavas with rheologic properties similar to basalts. A series of evolving eruptive styles is suggested by changes in morphology and inferred progressive reductions in flow volume with higher stratigraphic position. Alba Patera's volcanic history has been summarized into four main phases. The first is characterized by extensive flood like flows presumably erupted from fissures associated with the initial intrusion of magma into the region. The second phase is associated with the emplacement of pyroclastic rock, a more speculative interpretation. The third phase produced the voluminous tabular, crested, and undifferentiated flows, probably from a more centralized vent source. The fourth and last phase is marked the effusion of levee like flows and the collapse of the summit calderas and final graben formation.
As a basic study for pollen analysis, the production rate of Morus alba (white mulberry) pollen grains in an abandoned M. alba plantation was determined over a three-year period from 1997 to 1999. The number of pollen grains per male catkin was assessed and the fall rate of male catkins was measured using five litter traps. The mean production rate was 2.6 × 10^ grains ha^yr^ (range = 2.2-3.4 × 10^ grains ha^yr^). This is near the lower end of the range of pollen production rates that have be...
Arturo Barraza Macías; Flavio Ortega Muñoz; Manuel Ortega Muñoz
Los objetivos de la presente investigación fueron: identificar el perfil descriptivo del síndrome de burnout y establecer la relación que existe entre dicho síndrome y las variables sociodemográficas (género, edad, relación de pareja y número de hijos) y situacionales (doctorado que cursa) estudiadas. Para el logro de tales objetivos, se realizó una investigación correlacional, transversal y no experimental a través de la aplicación de la Escala Unidimensional de Burnout Estudiantil a los alu...
Arturo Barraza Macías; Flavio Ortega Muñoz; Manuel Ortega Muñoz
Los objetivos de la presente investigación fueron identificar el perfil descriptivo del síndrome de burnout y establecer la relación que existe entre dicho síndrome y las variables sociodemográficas y situacionales estudiadas. Para el logro de tales propósitos, se realizó una investigación correlacional, transversal y no experimental a través de la aplicación de la Escala Unidimensional de Burnout Estudiantil a los alumnos de los dos doctorados en educación que existen en la ciudad de Durango...
¿De quién es el conocimiento sobre el número?, ¿quién determina su tratamiento curricular? Cuestiones similares han sido propuestas recientemente por Michael Apple (¿De quién es el conocimiento que más valor tiene?, ¿de quién es este curriculo?), y se plantean en toda su crudeza cuando, como en la actualidad, se trabaja sobre modificaciones importantes del currículo. En tales momentos nos vemos obligados a interrogarnos por la finalidad de la formación escolar, por la idoneidad de determinado...
El presente trabajo muestra la situación actual de los estudios de doctorado en Didáctica de la Matemática en la universidad española, que han experimentado un desarrollo considerable desde sus comienzos en la década de los 80. El trabajo presenta las condiciones generales y el proceso legal que hay que seguir para la realización de una tesis doctoral en España. Este proceso se ejemplifica con el programa de doctorado de la Universidad de Granada. El estudio tambien describe los diversos ámbi...
Torres Campos, Eduwiges sustentante.
tesis que para obtener el grado de Doctor en Pedagogía, presenta Eduwiges Torres Campos ; asesor Antonio Carrillo Avelar. iv, 294 páginas : ilustraciones. Doctorado en Pedagogía UNAM, Facultad de Estudios Superiores Aragón, 2009
Edney, Norris Allen; Rizvi, Muhammad A.; Rizvi, Narjis F.
Basella alba L. is a tropical vine used as a vegetable in some Asian and African countries. It has potential as a nontraditional crop for small family farms. A short day plant, it blooms during the fall, provided the temperatures are mild. In the southeastern U.S., the short days of fall are associated with subfreezing temperatures, and plants are killed before blooming. Attempts were made to regenerate the plant using tissue culture techniques. Several trials were conducted with different media, hormones, and explants. It was found that nodal segments on Gamborg medium regenerated shoots. Interaction studies of auxins and cytokinins indicated that its endogeneous auxin content might be high because callus proliferated in almost all treatments and roots initiated even when the medium was not supplemented with an auxin.
Brenk, van G.
De bloei van Nerine flexuosa alba wordt voornamelijk beinvloed door de temperatuur. Per groei- en bloeicyclus vraagt deze Nerine eerst een lage temperatuur voor aanleg en ontwikkeling van de bloeiknoppen en daarna voor de bloei een hoge temperatuur
Claire E. Chies
Full Text Available Lippia alba is a shrub found in all regions of Brazil and other countries in South and Central America. L. alba exhibits variability among its different accessions, showing differences in morphology and in the composition of its essential oil. This study evaluated the phenolic profiles and the antioxidant activities of seven different accessions of L. alba. The seven accessions of L. alba studied exhibited an important phenolic content, and all accessions demonstrated antioxidant activity with different efficacies. The main flavonoids in all accessions were apigenin, luteolin, naringin and rutin. The Santa Vitória do Palmar accession exhibited higher naringin and total phenolic content. This extract was able to reduce hydrogen peroxide-induced oxidative damage in tissue homogenates of cerebellum, cerebral cortex, hippocampus and liver of Wistar rats.
Ariel Rementería Piñones
Full Text Available Se hace una reflexión sobre la implementación en Chile de un programa de doctorado en bibliotecología, se analiza la ley LOCE y su relación con los posgrados, y con el proceso de acreditación, se hace un breve análisis de los programas de magísteres ofrecidos en Chile en bibliotecología y su relación con la situación bibliotecaria del país. Se exponen los motivos que justificarían el desarrollo de un programa de doctorado de bibliotecología en Chile con base en los precarios resultados de los indicadores relacionados con la cantidad de recursos humanos altamente calificados en el área. Se concluye que existe la necesidad de aumentar la masa crítica de investigadores en la bibliotecología chilena a través de un programa doctoral.The implementation in Chile of a Ph. D. in Library Science is reflected upon and the Organic Constitutional Teaching Law (LOCE analysed in relation to postgraduate education. The master programs offered in Chile in Library Science are briefly outlined. The reasons which justify the development of the doctoral program are discussed in the light of the poor results suggested by indicators on the number of highly qualified human resources in the area. The need to increase the critical number of researchers in Chilean Library Science through a masters degree, is concluded.
The main objective of the present paper is to present the way consumers in Alba Iulia,Romania, to perceive the concept of corporate social responsibility. The research represents thesummary of a larger research project pretested questionnaire. In order to achieve this objectivewe have applied a questionnaire to a number of 51 consumers from Alba Iulia. The data wereanalyzed with the help of SPSS software.The paper starts with a literature review in the area of corporate social responsibility ...
Devesa, J. A.; López, E
Taxonomic revision of the Centaurea alba L. complex (Asteraceae) in the Iberian Peninsula.- A taxonomic revision of the Centaurea alba L. complex (Centaurea L. sect. Centaurea) in the Iberian Peninsula is presented, which is represented by two species, C. alba and C. costae Willk. Three subspecies of C. alba with reasonably well-defined areas are recognized: C. alba subsp. alba, with three varieties –alba, macrocephala Pau and latronum (Pau) E. López & Devesa-, C. alba subsp. aristifera (Pau...
Jorge Enrique Celis Giraldo
Full Text Available Aumentar el número de graduados de programas de doctorado en la industria colombiana, se ha definido como uno de los mecanismos para fortalecer las capacidades deinnovación de dicho sector. Un estudio realizado en Colombia demostró que la mayoría de los estudiantes de doctorado en ingeniería prefiere la academia como destino laboral.Dicho estudio encontró también que los programas de doctorado de corte industrial influyen en las expectativas de los estudiantes para que opten por la industria. Este artículo describe los aspectos que se consideran relevantes para transformar los doctorados de corte académico, en otros, que promuevan la innovación.
José Alonso Olivas-Ávila; Bertha Musi-Lechuga
Los programas de doctorado en España han experimentado una serie de transformaciones a través de las distintas convocatorias de Mención de Calidad y más recientemente con la Mención de Excelencia en función de lograr una satisfactoria adaptación al EEES. El objetivo de este estudio es realizar un análisis de la productividad científica de los cinco programas de doctorado en Psicología que les ha sido otorgada la Mención de Excelencia según la resolución de 6 de octubre de 2011 de la Secretarí...
Torralbo Rodríguez, Manuel; Maz Machado, Alexander; Vallejo Ruiz, Mónica; Fernández Cano, Antonio
Este artículo ofrece una discusión extensa sobre la calidad de la investigación española en Educación Matemática, en base a los estudios de doctorado, utilizando una serie de criterios. En un breve balance, se consideran las realizaciones generales y las limitaciones detectadas, tratando de mejorar este campo de investigación.
Okada, Ryo; Kiyota, Eri; Moriyama, Hiromitsu; Toshiyuki, Fukuhara; Valverde, Rodrigo A
A putative new endornavirus was isolated from Malabar spinach (Basella alba). The viral dsRNA consisted of 14,027 nt with a single ORF that coded for a polyprotein of 4,508 aa. The genome organization was similar to that of four other endornaviruses. Conserved domains for helicase-1, capsular synthase, UDP-glucose-glycosyltransferase (UGT), and RdRp were detected. Infected plants were phenotypically undistinguishable from healthy ones. The name Basella alba endornavirus is proposed for the virus isolated from Malabar spinach. PMID:24122112
Journal of Dental Education, 1981
AADS curricular guidelines suggest objectives for these areas of dental auxiliary radiology: physical principles of X-radiation in dentistry, related radiobiological concepts, principles of radiologic health, radiographic technique, x-ray films and intensifying screens, factors contributing to film quality, darkroom, and normal variations in…
Rulison, Sheila R.
The purpose of this study was to examine teachers' perceptions of curricular change and how teachers in one high school in the southwestern United States viewed the potential effects of the implementation of Common Core State Standards. Surveys, focus group sessions, one-on-one interviews, and various observational techniques were used to…
Claudia Olimpia MOISA
The present paper, dominated by the global economic crisis effects is and continues to be a critical time for global tourism industry and for Romanian too. This study tries to play on a particular case, Park Hotel, located in Alba Iulia, the impact of this phenomenon over tourist hotel services.
MOISA Claudia Olimpia
Full Text Available The present paper, dominated by the global economic crisis effects is and continues to be a critical time for global tourism industry and for Romanian too. This study tries to play on a particular case, Park Hotel, located in Alba Iulia, the impact of this phenomenon over tourist hotel services.
Chan, Eric Wei-Chiang; Lye, Phui-Yan; Wong, Siu-Kuin
The present review is aimed at providing a comprehensive summary on the botany, utility, phytochemistry, pharmacology, and clinical trials of Morus alba (mulberry or sang shu). The mulberry foliage has remained the primary food for silkworms for centuries. Its leaves have also been used as animal feed for livestock and its fruits have been made into a variety of food products. With flavonoids as major constituents, mulberry leaves possess various biological activities, including antioxidant, antimicrobial, skin-whitening, cytotoxic, anti-diabetic, glucosidase inhibition, anti-hyperlipidemic, anti-atherosclerotic, anti-obesity, cardioprotective, and cognitive enhancement activities. Rich in anthocyanins and alkaloids, mulberry fruits have pharmacological properties, such as antioxidant, anti-diabetic, anti-atherosclerotic, anti-obesity, and hepatoprotective activities. The root bark of mulberry, containing flavonoids, alkaloids and stilbenoids, has antimicrobial, skin-whitening, cytotoxic, anti-inflammatory, and anti-hyperlipidemic properties. Other pharmacological properties of M. alba include anti-platelet, anxiolytic, anti-asthmatic, anthelmintic, antidepressant, cardioprotective, and immunomodulatory activities. Clinical trials on the efficiency of M. alba extracts in reducing blood glucose and cholesterol levels and enhancing cognitive ability have been conducted. The phytochemistry and pharmacology of the different parts of the mulberry tree confer its traditional and current uses as fodder, food, cosmetics, and medicine. Overall, M. alba is a multi-functional plant with promising medicinal properties. PMID:26850343
Guillem Antequera Gallego
Full Text Available El pasado 18 de mayo de 2007, tuvo lugar en Londres el último de los encuentros bienales del Proceso de Bolonia, en el que se reunieron los ministros responsables de la educación superior de los países participantes. En el consiguiente London Communiqué se resumieron las valoraciones de los ministros sobre el estado en el que dicho proceso se halla. Así, se pasó revista a los avances consolidados, a aquellas deficiencias que aún no han recibido la atención necesaria, y a las medidas y estrategias urgentes para su definitiva conclusión. El presente texto da noticia de todas estas cuestiones y, con motivo de ofrecer al lector referencias adicionales sobre el contexto general, incluye una breve síntesis de otros documentos directamente relacionados con los temas más destacados en Londres 2007: los programas de doctorado y la figura del doctorando.The last biennial meeting on the 18th of May 2007 concerning the Bologna Process took place in London with the ministers responsible for higher education from the participating countries. The London Communiqué summarised the ministers’ appraisals of the current situation. Thus, the consolidated improvements were considered together with the deficiencies which not received the necessary attention and the measures and strategies which will be implemented to achieve its final conclusion. This text reports all these issues and adds a synthesis of previous documents concerning the more closely related aspects to the meeting of London 2007, including the doctoral programmes and the profile of PhD student. In this way, the reader will have additional information in a wider context about the last meeting’s more relevant aspects.
This article outlines a conceptual framework for conceptualising students’ experiences of curricular space from an aesthetic perspective. The curriculum is conceived as a three-dimensional, aesthetic artefact that elicits sensory responses and judgements about meaning that can impact learning....... Space is conceived in terms of three dimensions that may either be produced or foreclosed by curricular structures and content: time-space dimension, autonomy dimension, reflective dimension and cognitive dimension. Together, these spaces enable imaginative space, which is important for innovative...... and creative thinking. The Japanese concept of ma is proposed as a fruitful way of thinking about space in curricula not as wasteful, inefficient or a mere void to be filled but as the element that enables learning to result from exposing students to structures and content...
Nurse educators have responded to the call for transformation in education. Challenges remain in planning curricular implementation to facilitate understanding of essential content for student success on licensure examinations and in professional practice. The conceptual framework Backward Design (BD) can support and guide curriculum decisions. Using BD principles in conjunction with educational models can strengthen and improve curricula. This article defines and describes the BD process, and identifies reported benefits for nursing education. PMID:24743175
Full Text Available En la presente investigación el objetivo general fue determinar la gestión comunicacional de la agenda de internacionalización de los doctorados de la Universidad del Zulia, en las divisiones de estudios para graduados de las Facultades Ciencias Jurídicas y Políticas, Ciencias Económicas y Sociales y Humanidades y Educación. Se destacan los aportes de los autores Ramírez (2005, Serna (2000, Monzón (2001, Wimmer y Dominick (2001, Rivera (2008, Otegui (2008, Núñez (2008, Trejo (2001; Gacel-ávila (2000, García (2001, Jaramillo y De Lisio (2004, entre otros. El estudio es de tipo cuantitativoy se utilizó como técnica la entrevista semi estructurada dirigida a los directores de: Relaciones Interinstitucionales, General de Comunicación, Divisiones de Estudios para Graduados y Coordinadores de los programas de doctorados, todos de la Universidad del Zulia. La investigación propone integrar la gestión comunicacionala la agenda académica,para promocionar la política de internacionalización de los doctorados de la Universidad del Zulia en el marco de los convenios interinstitucionales. Los resultados demostraron que ciertamente, existe una debilidad en los principios básicos organizacionales y poco interés por proyectar una imagen corporativa, aunque se han hecho adelantos significativos desde la dirección de Relaciones Interinstitucionales y la División de Estudios para Graduados de la Facultad de Humanidades y Educación para posicionarse mundialmente en el área.
Olga Yanet Acuña Rodríguez
El presente artículo pretende hacer una reflexión sobre las temáticas y metodologías empeladas en el desarrollo de las tesis doctorales realizadas en el Doctorado en Ciencias de la Educación - RUDECOLOMBIA. Es de anotar que la base del programa de formación doctoral fue el proyecto sobre "Historia de la Universidad colombiana, 1774-1992", el que se ha enriquecido con la investigación y aporte de las tesis doctorales. Así, el objeto de estudio que es la Universidad, ha sido estudiado desde div...
Sevilla Buitrago, Álvaro; Hernández Aja, Agustín
Los conflictos en la definición del doctorado en urbanismo, que emergen con la integración al EEES, tienen relación con la dificultad de sintetizar los métodos y marcos de planeamiento locales con la vocación de estandarización a nivel europeo. Esta búsqueda choca con la realidad local de cada centro y universidad y sobre todo con la especificidad de una disciplina compleja y multidimensional como la urbanística. Las universidades están exigiendo a sus centros adaptarse a un patrón investigad...
Alejandra Hinojosa; María Teresa Muñoz García; José Luis Ruiz Guzmán; Javier Ruiz Ledesma; Gerardo Gómez González; Alfredo Aguilar Valdés
El desafío de la Universidad Autónoma Chapingo es el de entender la complejidad de los problemas actuales y emprender las vías de solución, para ello se requiere una formación conceptual y metodológica de alta especialización y calidad académica. El programa Doctorado en Ciencias en Gestión del Conocimiento e Innovación, tiene como objetivo formar investigadores y consultores innovadores capaces de producir conocimiento original y desarrollos tecnológicos, derivados del análisis sistemático d...
Carneiro, Francisca Regina Oliveira; do Amaral, Gabriela Borborema; Mendes, Maiana Darwich; Quaresma, Juarez Antônio Simões
BACKGROUND Pityriasis alba affects 1% of the world population and about 9.9% of the children in Brazil. However, its etiology remains uncertain. OBJECTIVE The objective of the present study was to evaluate the immunoexpression of factor XIIIa in dermal dendrocytes of skin lesions of pityriasis alba. METHOD Twenty patients with pityriasis alba and 20 patients with atopic dermatitis underwent biopsy. The dermal dendrocytes marked by factor XIIIa were counted by means of immunohistochemical anal...
Full Text Available Ten flavonoids were obtained from the flowers of Nymphaea alba L. Their structures were determined mainly on the basis of spectral analyses (UV, 'H NMR, MS. The following aglycons were isolated: quercetin, kaempferol, isokaempferide and apigenin as well as the following glycosides: quercetion 4'-β-xyloside, 3-methylquercetin 3'-β-xyloside and a mixture of quercetin 3-galactoside and 3-glucoside. The structures of three compounds obtained in very small amounts were determined in part.
Roshan Adhikari; Naveen Kumar HN; Shruthi SD
The ethanobotanical properties of Basella alba have been reviewed in this article. Various parts of the plant are used for treatment of the diseases as well as for different healing activities of human beings as well as animals across the globe especially in India and China. Its use has been discovered as asperient, rubefacient and for catarrhl infections. Some of the compounds available especially in the plant are basellasaponins, kaempherol, betalin, etc. Several extracts like aqueous, chlo...
Full Text Available Problem statement: Traumatic nerve injury has been recognized as one of the problems commonly found in road traffic crashes. Therefore, searching for the effective substances for promoting the functional recovery of nerve after injury is in required. Accumulating lines of evidence show that free radicals generated after injury contribute the important role to retard functional recovery, thus the substance possessing anti-oxidant could facilitate functional recovery. Based on the effect of antioxidant to promote functional recovery of nerve after injury mentioned earlier, we hypothesized that Morus alba extract, a substance possessing anti-oxidant activity, should be able to facilitate the functional recovery of peripheral nerve after injury. Approach: To elucidate this issue, male Wistar rats, weighing 180-220 g, were orally given the aqueous extract of Morus alba at various doses ranging from 0.1, 1 and 10 mg kg-1 BW 5days before and 21 days after sciatic nerve injury. Motor, sensory and sensorimotor coordination were observed every 3 days for 3 weeks by using De Medinacelli method, foot reflex withdrawal test and rotarod test, respectively. Results: The low dose of the extract significantly improved both sensory and motor functions after crush injury. Although sensory function recovers more sooner than the motor function, it fails to show full recovery within weeks. Thus, the present study demonstrates the potential of M. alba extract to enhance functional recovery after crush injury. Conclusion: In conclusion, Morus alba may serve as functional food to promote nerve recovery after injury. However, further studies about the possible active ingredient (s and underlying mechanism (s are required.
Roulin, A; Kölliker, M; Richner, H.
Current theory proposes that nestlings beg to signal hunger level to parents honestly, or that siblings compete by escalating begging to attract the attention of parents. Although begging is assumed to be directed at parents, barn owl (Tyto alba) nestlings vocalize in the presence but also in the absence of the parents. Applying the theory of asymmetrical contests we experimentally tested three predictions of the novel hypothesis that in the absence of the parents siblings vocally settle cont...
Jahan, Rownak; Al-Nahain, Abdullah; Majumder, Snehali; Rahmatullah, Mohammed
Eclipta alba can be found growing wild in fallow lands of Bangladesh where it is considered as a weed by farmers. Traditional medicinal systems of the Indian subcontinent countries as well as tribal practitioners consider the plant to have diverse medicinal values and use it commonly for treatment of gastrointestinal disorders, respiratory tract disorders (including asthma), fever, hair loss and graying of hair, liver disorders (including jaundice), skin disorders, spleen enlargement, and cut...
Shahbudin Saad; Muhammad Taher; Deny Susanti; Haitham Qaralleh; Anis Fadhlina Izyani Bt Awang
Objective:To investigate the antimicrobial property of mangrove plant Sonneratia alba (S. alba). Methods: The antimicrobial activity was evaluated using disc diffusion and microdilution methods against six microorganisms. Soxhlet apparatus was used for extraction with a series of solvents, n-hexane, ethyl acetate and methanol in sequence of increasing polarity. Results:Methanol extract appeared to be the most effective extract while n-hexane extract showed no activity. The antimicrobial activities were observed against the gram positive bacteria Staphylococcus aureus (S. aureus) and Bacillus cereus (B. cereus), the gram negative Escherichia coli (E. coli) and the yeast Cryptococcus neoformans. Pseudomonas aeruginosa and Candida albicans appeared to be not sensitive to the concentrations tested since no inhibition zone was observed. E. coli (17.5 mm) appeared to be the most sensitive strain followed by S. aureus (12.5 mm) and B. cereus (12.5 mm). Conclusions:From this study, it can be concluded that S. alba exhibits antimicrobial activities against certain microorganisms.
Bland, Carole J.; Starnaman, Sandra; Wersal, Lisa; Moorhead-Rosenberg, Lenn; Zonia, Susan; Henry, Rebecca
Reviews the literature on educational curricular change and applies findings to change in medical school settings. Found a consistent set of characteristics in the following areas associated with successful curricular change; these include: organizational mission and goals, history of organizational change, politics, organizational structure, need…
This paper employs new regionalism theory and regulatory regionalism theory in its analysis and theorisation of the Bolivarian Alliance for the Peoples of Our America (ALBA) as a counter-hegemonic Latin American and Caribbean (LAC) regionalism. As (initially) the regionalisation of Venezuela's Bolivarian Revolution, ALBA is centred around the idea…
BRAVO RAMÍREZ, ROBERTO
La idea principal de este proyecto es el estudio pionero, dentro del sector de la construcción español, del trabajo y las experiencias laborales de los integrantes en el oficio de albañil. Albañil es "el maestro u oficio de albañilería". De esta definición podemos deducir que el trabajo del albañil puede considerarse como un arte, por tanto es una actividad para la cual es necesario tener formación y experiencia. Bravo Ramírez, R. (2011). Construcción de un "perfecto" albañil. http://hdl.h...
Mejda Abassi; Khaled Mguis; Zoubeir Béjaoui; Ali Albouchi
The morphogenetic responses to salt stress of TunisianPopu-lus alba clones were studied in order to promote their plantation in dam-aged saline areas. One year-old plants of threeP. alba clones (MA-104, MA-195 and OG) were subjected to progressive salt stress by irrigation during two consecutive years. The plants were grown in a nursery, inside plastic receptacles containing sandy soil and were irrigated with tap water (control) or 3-6 g/l NaCl solution. During this study, leaf epinasty, elongation rate, vigor, internode length, plant architecture, and number of buds were evaluated. Test clone response was highly dependent on the applied treatment and degree of accommodation.The most pronounced alterations were induced under 6g/l of NaCl treatment including leaf epinasty, leaf elongation rate delay, vigor decrease, internode length shortening, and morphogenetic modifications. These responses were less noticeable in the MA-104 clone with respect to the two other clones. The salt effect induced a delay in the leaf elongation rate on the MA-195 and OG clones leading to an early leaf maturity. The vigour and internode length of the MA-104 clone was less affected than the other clones. The OG clone was the most salt-sensitive thus, it developed shorter branches and more buds number than MA-195 and MA-104. The effect of long-term salt stress was to induce early flowering of theP. alba clones which suggests that mechanism of salt accommodation could be devel-oped.
María Eugenia Navas Ríos
Desde un marco referencial teórico aportado por Casanova (1986), García Gaudilla (1995) y Martínez de Dueri y otros (2002) acerca de las categorías objeto de investigación en educación superior y la orientación de la investigación en los postgrados, confrontándolo con las propuestas actuales en investigación que promueven las universidades que actualmente ofertan doctorados en educación en la región andina (Bolivia, Colombia, Perú y Venezuela), se llegó a una aproximación de la investigación ...
Saleh, Mahmoud A; Belal, Mohamed H; el-Baroty, Gamal
The antifungal activity of Artemisia herba alba was found to be associated with two major volatile compounds isolated from the fresh leaves of the plant. Carvone and piperitone were isolated and identified by GC/MS, GC/IR, and NMR spectroscopy. Antifungal activity was measured against Penicillium citrinum (ATCC 10499) and Mucora rouxii (ATCC 24905). The antifungal activity (IC50) of the purified compounds was estimated to be 5 microg/ml, 2 microg/ml against Penicillium citrinum and 7 microg/ml, 1.5 microg/ml against Mucora rouxii carvone and piperitone, respectively. PMID:16484084
Full Text Available The ethanobotanical properties of Basella alba have been reviewed in this article. Various parts of the plant are used for treatment of the diseases as well as for different healing activities of human beings as well as animals across the globe especially in India and China. Its use has been discovered as asperient, rubefacient and for catarrhl infections. Some of the compounds available especially in the plant are basellasaponins, kaempherol, betalin, etc. Several extracts like aqueous, chloroform, ethanol and petroleum has been used for different pharmaceutical activities.
Ramu, G.; G. Krishna Mohan; Jayaveera, K N
Basella alba leaf mucilage was investigated as a binder in paracetamol tablets prepared by wet granulation method. Mucilage at four levels (concentrations of mucilage binders: 4, i.e., 2.5, 5, 7.5 and 10% w/w) were studied. No significant work has been reported to use it as a tablet binder. The evaluation of granules showed 0.62 to 0.76 mm granule size, 28°47′ to 30°27′ angle of repose and 31.57 to 23.45% fines. Moisture content of the different granulations was less than 1%. The tablets were...
Candreva, Anna; Susacasa, Sandra
En el marco de la Jornada de Educación Médica, realizada en la Facultad de Ciencias Médicas de la UNLP, el 29 de junio próximo pasado, se desarrolló el Taller de DISEÑO CURRICULAR POR COMPETENCIAS con la participación de docentes de distintas cátedras de la carrera de Medicina. En la introducción del taller se expuso el marco teórico de esta cuestión tan significativa para la Educación Médica. Se presentaron los aportes de la Pedagogía Médica con el objetivo de instalar el debate académ...
Aguiar, Jaciana S.; Maria C. C. D. Costa; Nascimento, Silene C.; Kêsia X. F. R. Sena
Lippia alba (Mill.) N. E. Brown (Verbenaceae), amplamente distribuída em todo o território brasileiro, é conhecida popularmente como erva cidreira e utilizada na medicina popular como analgésica, febrífuga, antiinflamatória, antigripal e nas afecções hepáticas. Extratos brutos foram preparados a partir de plantas cultivadas, de modo padronizado, em horta medicinal do Laboratório de Fitoterapia da Empresa Pernambucana de Pesquisa Agropecuária (IPA) para a verificação da atividade antimicrobian...
Full Text Available Basella alba leaf mucilage was investigated as a binder in paracetamol tablets prepared by wet granulation method. Mucilage at four levels (concentrations of mucilage binders: 4, i.e., 2.5, 5, 7.5 and 10% w/w were studied. No significant work has been reported to use it as a tablet binder. The evaluation of granules showed 0.62 to 0.76 mm granule size, 28°47′ to 30°27′ angle of repose and 31.57 to 23.45% fines. Moisture content of the different granulations was less than 1%. The tablets were prepared and evaluated for average weight and weight variation, thickness, content uniformity, hardness, friability, disintegration time and in vitro dissolution profiles. All the batches of tablets exhibited good uniformity in content. The hardness was within the range of 4.5 to 5.5 kg/cm 2 . The hardness was increased and friability decreased with the increasing concentration of binding agent. The disintegration time also increased with increasing binder concentrations. The evaluation of tablet showed 0.434 to 0.410% friability, 9 to 18 minutes disintegration time and the drug release was more than 70% in 60 minutes. Tablets at 7.5% w/w binder concentration showed more optimum results as tablet binder. The B. alba mucilage was found to be good as a binder to paracetamol tablets.
Anderson, R.C.; Dohm, J.M.; Haldemann, A.F.C.; Hare, T.M.; Baker, V.R.
Syria Planum and Alba Patera are two of the most prominent features of magmatic-driven activity identified for the Tharsis region and perhaps for all of Mars. In this study, we have performed a Geographic Information System-based comparative investigation of their tectonic histories using published geologic map information and Mars Orbiter Laser Altimetry (MOLA) data. Our primary objective is to assess their evolutional histories by focusing on their extent of deformation in space and time through stratigraphic, paleotectonic, topographic, and geomorphologic analyses. Though there are similarities among the two prominent features, there are several distinct differences, including timing deformational extent, and tectonic intensity of formation. Whereas Alba Patera displays a major pulse of activity during the Late Hesperian/Early Amazonian, Syria Planum is a long-lived center that displays a more uniform distribution of simple graben densities ranging from the Noachian to the Amazonian, many of which occur at greater distances away from the primary center of activity. The histories of the two features presented here are representative of the complex, long-lived evolutional history of Tharsis. ?? 2004 Elsevier Inc. All rights reserved.
Full Text Available Hypercholesterolemia is the major risk factor that leads to atherosclerosis. Nowadays, alternative treatment using medicinal plants gained much attention since the usage of statins leads to adverse health effects, especially liver and muscle toxicity. This study was designed to investigate the hypocholesterolemic and antiatherosclerotic effects of Basella alba (B. alba using hypercholesterolemia-induced rabbits. Twenty New Zealand white rabbits were divided into 5 groups and fed with varying diets: normal diet, 2% high cholesterol diet (HCD, 2% HCD + 10 mg/kg simvastatin, 2% HCD + 100 mg/kg B. alba extract, and 2% HCD + 200 mg/kg B. alba extract, respectively. The treatment with B. alba extract significantly lowered the levels of total cholesterol, LDL, and triglycerides and increased HDL and antioxidant enzymes (SOD and GPx levels. The elevated levels of liver enzymes (AST and ALT and creatine kinase were noted in hypercholesterolemic and statin treated groups indicating liver and muscle injuries. Treatment with B. alba extract also significantly suppressed the aortic plaque formation and reduced the intima: media ratio as observed in simvastatin-treated group. This is the first in vivo study on B. alba that suggests its potential as an alternative therapeutic agent for hypercholesterolemia and atherosclerosis.
Baskaran, Gunasekaran; Salvamani, Shamala; Azlan, Azrina; Ahmad, Siti Aqlima; Yeap, Swee Keong; Shukor, Mohd Yunus
Hypercholesterolemia is the major risk factor that leads to atherosclerosis. Nowadays, alternative treatment using medicinal plants gained much attention since the usage of statins leads to adverse health effects, especially liver and muscle toxicity. This study was designed to investigate the hypocholesterolemic and antiatherosclerotic effects of Basella alba (B. alba) using hypercholesterolemia-induced rabbits. Twenty New Zealand white rabbits were divided into 5 groups and fed with varying diets: normal diet, 2% high cholesterol diet (HCD), 2% HCD + 10 mg/kg simvastatin, 2% HCD + 100 mg/kg B. alba extract, and 2% HCD + 200 mg/kg B. alba extract, respectively. The treatment with B. alba extract significantly lowered the levels of total cholesterol, LDL, and triglycerides and increased HDL and antioxidant enzymes (SOD and GPx) levels. The elevated levels of liver enzymes (AST and ALT) and creatine kinase were noted in hypercholesterolemic and statin treated groups indicating liver and muscle injuries. Treatment with B. alba extract also significantly suppressed the aortic plaque formation and reduced the intima: media ratio as observed in simvastatin-treated group. This is the first in vivo study on B. alba that suggests its potential as an alternative therapeutic agent for hypercholesterolemia and atherosclerosis. PMID:26697097
Rudawska, Maria; Pietras, Marcin; Smutek, Iwona; Strzeliński, Paweł; Leski, Tomasz
Abies alba (Mill.) is an important forest tree species, native to the mountainous regions of Europe but has been also widely introduced in the lowlands outside its native range. Like most forest tree species, A. alba forms obligate mutualisms with ectomycorrhizal (ECM) fungi. This investigation sought to examine ECM fungal communities of A. alba when the species grows 400 km north of its native range in the region of Pomerania in Poland. We surveyed for ECM fungi by sampling live roots from four mature forest stands where the A. alba component ranged from 20 to 100%. Ectomycorrhizal fungal symbionts were identified based on morphotyping and sequencing of the internal transcribed spacer (ITS) of nuclear ribosomal DNA (rDNA). Thirty-five ECM fungal taxa were distinguished on root tips of A. alba from all tested stands with 22 to 27 ECM fungal taxa in the individual stand. The diversity and similarity metrics revealed a lack of statistical differences in the structure of the ECM fungal community between stands varying in overstory tree composition. Cenococcum geophilum was the most common fungal species at all investigated A. alba stands, with an abundance of 50 to 70%. The ECM community was characterized by the lack of Abies-specific fungal symbionts and a rich and diverse suite of host-generalist mycobionts that seem to be sufficient for successful growth and development of A. alba outside of its native range. PMID:26071873
VIVIAN L. UZURIAGA LÓPEZ; JOSE GÓMEZ ESPÍNDOLA; ABEL E. POSSO AGUDELO
En el presente artículo se dan a conocer algunos de los resultados obtenidos durante el desarrollo del proyecto de investigación "Diseño curricular del programa preparatorio para la vida universitaria".
Pedro Sarmiento; María Clara Tovar
Introducción: El diseño o rediseño curricular de un programa académico incluye las fases de fundamentación, definiciónde ejes problemáticos y estructuración. El estudio pretende fomentar la reflexión sobre la práctica y la investigación en elcampo curricular y fortalecer las políticas institucionales relacionadas con el diseño curricular de los programas académicos,en procura de mejorar la pertinencia y la calidad del currículo.Objetivo: Describir las prácticas del diseño curricular en los pr...
Milton Linhares; Mônica Tereza Mansur Linhares
In this article, the authors make a brief analysis about the curriculum problematic and curricular guidelines, for the bachelorship in Law, established by the Higher Education Board of the National Education Council – CES/CNE, under the Resolution No 9 of the 29th of September, 2004. With effect, the curriculum and the curricular guidelines for teaching Law gain capital importance for the conduction of the Higher Education Guidelines concerning the juridical teaching in Brazil. They form a co...
Rudawska, Maria; Pietras, Marcin; Smutek, Iwona; Strzeliński, Paweł; Leski, Tomasz
Abies alba (Mill.) is an important forest tree species, native to the mountainous regions of Europe but has been also widely introduced in the lowlands outside its native range. Like most forest tree species, A. alba forms obligate mutualisms with ectomycorrhizal (ECM) fungi. This investigation sought to examine ECM fungal communities of A. alba when the species grows 400 km north of its native range in the region of Pomerania in Poland. We surveyed for ECM fungi by sampling live roots from f...
The Alba-NOM instrument is a high accuracy scanning machine capable of measuring the slope profile of long mirrors with resolution below the nanometer scale and for a wide range of curvatures. We present the characterization of different sources of errors that limit the uncertainty of the instrument. We have investigated three main contributions to the uncertainty of the measurements: errors introduced by the scanning system and the pentaprism, errors due to environmental conditions, and optical errors of the autocollimator. These sources of error have been investigated by measuring the corresponding motion errors with a high accuracy differential interferometer and by simulating their impact on the measurements by means of ray-tracing. Optical error contributions have been extracted from the analysis of redundant measurements of test surfaces. The methods and results are presented, as well as an example of application that has benefited from the achieved accuracy
Farias, Mareni R.; Pertile, Roberto; Correa, Melissa M.; Schenkel, Eloir P., E-mail: firstname.lastname@example.org [Universidade Federal de Santa Catarina (UFSC), Florianopolis, SC (Brazil). Dept. de Ciencias Farmaceuticas. Programa de Pos-graduacao em Farmacia; Almeida, Maria Tereza R. de; Palermo, Jorge A. [Universidad de Buenos Aires (Argentina). Facultad de Ciencias Exactas y Naturales. Dept. de Quimica Organica
Two saponins were isolated from the leaves of Lippia alba. Their structures were established using one- and two-dimensional NMR spectroscopy and mass spectrometry. These new compounds were elucidated as 3-O-beta-D-glucopyranosyl-28-O-(alpha-L-rhamnopyranosyl-(1->3)-beta-D-xylopyranosyl -(1->4)-alpha-L-rhamnopyranosyl-(1->2)-alpha-L-arabinopyranosyl)-16alpha, 23-dihydroxy-olean -12-en-28-oic acid, named as Lippiasaponin I (2) and as 3-O-beta-D-glucopyranosyl-28-O-(alpha-L-rhamnopyranosyl-(1->3)-beta-D-xylopyranosyl- (1->4)-alpha-L-rhamnopyranosyl-(1->3)-alpha-Larabinopyranosyl)-16alpha,23-dihydroxy-olean -12-en-28-oic acid, named Lippiasaponin II (3). (author)
Two saponins were isolated from the leaves of Lippia alba. Their structures were established using one- and two-dimensional NMR spectroscopy and mass spectrometry. These new compounds were elucidated as 3-O-β-D-glucopyranosyl-28-O-(α-L-rhamnopyranosyl-(1→3)-beta-D-xylopyranosyl -(1→4)-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranosyl)-16α, 23-dihydroxy-olean -12-en-28-oic acid, named as Lippiasaponin I (2) and as 3-O-β-D-glucopyranosyl-28-O-(α-L-rhamnopyranosyl-(1→3)-β-D-xylopyranosyl- (1→4)-α-L-rhamnopyranosyl-(1→3)-α-Larabinopyranosyl)-16α,23-dihydroxy-olean -12-en-28-oic acid, named Lippiasaponin II (3). (author)
Md. Ali Milon*1, Md. Abdul Muhit , Durajan Goshwami , Mohammad Mehedi Masud and Bilkis Begum
Full Text Available The present study was undertaken to evaluate antioxidant, cytotoxic and antimicrobial activity of Sonneratia alba bark. The carbon tetrachloride, chloroform soluble partitionate of methanolic extract and crude methanolic extract showed significant antioxidant property using 1,1-diphenyl-2-pecrylhydrazyl(DPPH scavenging assay ,of which chloroform partitionate and crude extract demonstrated highest activity with IC50 value of 12µg/ml and 14µg/ml respectively. In the brine shrimp lethality bioassay, LC50 values obtained from the best fit line slope were 0.812, 14.94, 0.831 and 3.288 µg/ml for standard (Vincristine sulphate, n-Hexane, carbon tetrachloride and chloroform soluble partitionate of methanolic extract respectively. The carbon tetrachloride soluble fraction revealed moderate activities against Bacillus cereus, Bacillus subtilis, Sarcina lutea, Pseudomonas aeruginosa and Shigella dysenteriae test organisms.
Full Text Available Stigmas isolated from flower buds of 'Nakielska' variety of Sinapis alba were used to develop a micropropagation method suitable for breeding of new cultivars. The origin of adventitious bud regeneration was studied on MS medium, under stimulation by bezylaminopurine (BAP in combination with 2,4-D - dichlorophenoxyacetic acid (2,4-D. Histological analysis showed the structure of Sinapis stigma (composed from four types of tissue: papillae, transmitting tissue, parenchyma and vascular bundles and revealed that numerous meristematic centers developed from parenchyma cells in close vicinity of vascular bundles. Buds very quickly appeared on the surface of initial explants and later formed multiplantlets that were easily rooted in the soil.
Maturing seeds of Sinapis alba were incubated with D-[U-14C]glucose, sodium [1-14C] acetate or myo-[U14C] inositol in order to prepare radioactively labelled phytic acid with high specific activity. Although each substrate was utilized for the biosynthesis of phytic acid, maximum incorporation of radioactivity into phytic acid was found with myo-inositol. Radiochemical purity of the [U-14C]phytic acid preparations was confirmed by chromatographic techniques. Such preparations should be useful for the study of interaction of phytic acid with metal ions and proteins and may serve as substrate in the assay should be useful for the study of interaction of phytic acid with metal ions and proteins and may serve as substrate in the assay of phytase. (orig.)
M F Shaikh
Full Text Available In the present study, anticonvulsant activity of methanol extract of Eclipta alba (10-200 mg/kg was studied using pentylenetetrazole- and picrotoxin-induced seizure models. Mechanism of effect of methanol extract of Eclipta alba was further elucidated by studying its GABA A receptor modulatory activity and its effect on levels of GABA in mice brain. Methanol extract of Eclipta alba exhibited potent anticonvulsant activity but has saturation of its pharmacological activity at 50 mg/kg. At the concentration of 10 mg/ml, contractions induced in guinea pig ileum was blocked by picrotoxin, but it didn′t not show any increase in GABA levels in mice brain after treatment. Hence, it can be concluded that methanol extract of Eclipta alba possesses potent anticonvulsant activity because of its positive modulatory effect on GABA A receptors.
Nıhal ÖZDER; SAĞLAM, Özgür
The development time, survivoship and reproduction of Tuberolachnus salignus (Gmelin)( Lachninae: Lachnini) were studied on Salix alba at fi ve constant temperatures (17.5°C, 20°C, 22.5°C, 25°C and 27.5°C ). The developmental time of immature stages ranged from 17.00 days at 17.5°C to 12.21 days at 25°C on Salix alba. The total percentage of survivorship of immature stages varied from 50% and 70% 17.5°C -20°C on S. alba. The largest r m valueoccurred with 0.2540 at 20°C on S. alba. The mean g...
S. A. NICULA
Full Text Available Development Policies in Alba Iulia Area of Influence. An Integrated Approach. The paper represents an integrated and holarchical perspective on the spatial development policies and its component measures and projects related to the City of Alba Iulia, its area of influence and the all-encompassing County of Alba, Romania. The goal was to see how the development and management policies from all levels merge into a single strategic framework that might create a favourable basis for the sustainable growth of Alba Iulia and its area of influence. As this area surrounding the city is subjected to different hierarchical plans and programmes, some that are not properly correlated, it is extremely clear that this area and Areas of Influence in general need legislative stipulations made specifically for them and also a well-thought holarchical planning approach.
Bertha Musi-Lechuga; José Alonso Olivas-Ávila; Gualberto Buela-Casal
El objetivo de este estudio descriptivo es analizar la producción científica de los programas de Doctorado de Psicología Clínica y/o de la Salud, evaluada ésta a través de los profesores que imparten docencia en estos programas. Un segundo objetivo es comprobar si los programas de Doctorado con mención de calidad tienen una mayor producción científica que los que no poseen esta mención. Para ello, se analizó la producción de artículos publicados en revistas incluidas en las bases de datos Web...
Jaciana S. Aguiar
Full Text Available Lippia alba (Mill. N. E. Brown (Verbenaceae, amplamente distribuída em todo o território brasileiro, é conhecida popularmente como erva cidreira e utilizada na medicina popular como analgésica, febrífuga, antiinflamatória, antigripal e nas afecções hepáticas. Extratos brutos foram preparados a partir de plantas cultivadas, de modo padronizado, em horta medicinal do Laboratório de Fitoterapia da Empresa Pernambucana de Pesquisa Agropecuária (IPA para a verificação da atividade antimicrobiana, in vitro, pelo método de difusão em disco de papel. A concentração inibitória mínima (CIM foi determinada para os extratos que exibiram melhores atividades. Os resultados obtidos mostraram que os extratos clorofórmico, acetônico e etanólico da raiz foram ativos frente a Staphylococcus aureus, Micrococcus luteus, Bacillus subtilis, Mycobacterium smegmatis, Candida albicans e Monilia sitophila e os extratos hexânicos, etanólicos e metanólicos das folhas inibiram S. aureus, M. luteus, B. subtilis, M. smegmatis e M. sitophila. A menor concentração inibitória (CIM = 31,2 µg/mL, foi obtida para o extrato clorofórmico da raiz frente a B. subtilis e M. luteus.Lippia alba (Mill. N. E. Brown (Verbenaceae, commonly known as "erva cidreira", is widely distributed throughout Brazil and is used in folk medicine as an analgesic, anti-inflammatory, cold remedy, as well as to reduce fevers and treat hepatic afflictions. Crude extracts of L. alba were prepared from plants cultivated in the medicinal garden of the Laboratório de Fitoterapia of the Empresa Pernambucana de Pesquisa Agropecuária (IPA, State of Pernambuco, Brazil, using standard techniques to test their in vitro antibacterial activity using the paper disk-diffusion method. The minimum inhibitory concentration (MIC was determined for those extracts demonstrating the highest activity. The results demonstrated that the chloroform, acetone and ethanol extracts of root material were
Oluwafemi Adebayo Oyewole; owolabi Azeez Kalejaiye
The antimicrobial effects of ethanolic extract of Basella alba against Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Candida albican was determined using the agar cup plate method. The phytochemical components of the ethanolic extracts of the leaf and stem of B. alba showed the presence of tannin, terpene, steroid, saponin, anthraquinone, and with carbohydrate only in the stem extracts. The result of this study showed that all the organisms except Candida albican. were ...
Gunasekaran Baskaran; Shamala Salvamani; Azrina Azlan; Siti Aqlima Ahmad; Swee Keong Yeap; Mohd Yunus Shukor
Hypercholesterolemia is the major risk factor that leads to atherosclerosis. Nowadays, alternative treatment using medicinal plants gained much attention since the usage of statins leads to adverse health effects, especially liver and muscle toxicity. This study was designed to investigate the hypocholesterolemic and antiatherosclerotic effects of Basella alba (B. alba) using hypercholesterolemia-induced rabbits. Twenty New Zealand white rabbits were divided into 5 groups and fed with varying...
Oyewole OA; Al-Khalil S; Kalejaiye OA
Agar cup plate method was used to determine the antimicrobial effects of Basella alba against Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Candida albican. Ethanolic extracts of the leaf and stem of B. alba revealed the presence of tannin, terpene, steroid, saponin, anthraquinone, and with carbohydrate present only in the stem extracts. The result of this study showed that S. aureus, P. aeruginosa and E. coli were susceptible to 60mg/ml and 100mg/ml of the extract while...
Claudia Florina Radu
Full Text Available Analysis of the Stat Budget Incomes from Alba County during 2006-2010The study aims to examine how the main taxes collected in Alba County have evolved overthe last five years. We wish to point out also the taxes that hold the largest share of the totalrevenue collected. So, on the first place we find the income tax, than VAT is the second andcorporate income tax followes. They are therefore the main source of income for the Albacounty budget.
Bo Yoon Chang; Seon Beom Kim; Mi Kyeong Lee; Hyun Park; Sung Yeon Kim
Morus alba L. fruits have long been used in traditional medicine by many cultures. Their medicinal attributes include cardiovascular, hepatoprotective, neuroprotective and immunomodulatory actions. However, their mechanism of macrophage activation and anti-cancer effects remain unclear. The present study investigated the molecular mechanisms of immune stimulation and improved chemotherapeutic effect of M. alba L. fruit extract (MFE). MFE stimulated the production of cytokines, nitric oxide (...
Glamočlija, Jasmina; Soković, Marina; Tešević, Vele; Linde, Giani Andrea; Colauto, Nelson Barros
The essential oil of Lippia alba is reported as an antifungal against human pathogenic microorganisms but few articles report its use as an alternative to synthetic fungicides on green mould control. The objective of this study was to determine chemical characteristics of L. alba essential oil and its antifungal activity against green molds as an alternative to synthetic fungicides. Essential oil was extracted by Clevenger hydrodistillation, characterized by GC-MS analysis, and the structure ...
Patrícia M.O. Pierre; Saulo M. Sousa; Lisete C. Davide; Marco A. Machado; Lyderson F. Viccini
Cytogenetic analyses, of pollen viability, nuclear DNA content and RAPD markers were employed to study three chemotypes of Lippia alba (Mill.) (Verbenaceae) in order to understand the genetic variation among them. Different ploidy levels and mixoploid individuals were observed. This work comprises the first report of different chromosome numbers (cytotypes) in L. alba. The chromosome numbers of La2-carvone and La3-linalool chemotypes suggested that they are polyploids. Flow cytometric analysi...
Full Text Available The aim of the present study was to elucidate impact of the aqueous extracts from leaves of Morus alba L. on germination, growth and photosynthetic activity of Cucumis sativus L. and Sinapis alba L. Plants were grown for 21 days at the temperature 25°C (day and 18°C (night, within 12/12 hours photoperiod, light intensity 150 μmol·m-2·s-1 and relative humidity 60-70% (day/night. Our experiments proved that allelopathic compounds in aqueous extracts of the leaves M. alba at high concentrations, reduce power and energy of germination. Biometric analysis of seedlings and adult plants grown showed that allelopathic substances have stimulating or inhibiting function depending on the stage of treatment. Moreover, they cause changes in chlorophyll contents and activity of photosystem II (PS II.
Carneiro, Francisca Regina Oliveira; do Amaral, Gabriela Borborema; Mendes, Maiana Darwich; Quaresma, Juarez Antônio Simões
BACKGROUND Pityriasis alba affects 1% of the world population and about 9.9% of the children in Brazil. However, its etiology remains uncertain. OBJECTIVE The objective of the present study was to evaluate the immunoexpression of factor XIIIa in dermal dendrocytes of skin lesions of pityriasis alba. METHOD Twenty patients with pityriasis alba and 20 patients with atopic dermatitis underwent biopsy. The dermal dendrocytes marked by factor XIIIa were counted by means of immunohistochemical analysis. RESULTS The mean amount of dermal dendrocytes found in the patients with pityriasis alba was 2, whereas in the patients with atopic dermatitis it was 4, with a statistically significant difference between them. A cutoff point of 3 cells/square inch was established to differentiate pityriasis alba from atopic dermatitis, with 80% sensibility and 90% specificity. CONCLUSION We believe that pityriasis alba and atopic dermatitis should be considered different clinical forms within the spectrum of atopic disease, in which sun radiation plays an important role by modulating the progression of the disease. PMID:24770500
Olga Yanet Acuña Rodríguez
Full Text Available El presente artículo pretende hacer una reflexión sobre las temáticas y metodologías empeladas en el desarrollo de las tesis doctorales realizadas en el Doctorado en Ciencias de la Educación - RUDECOLOMBIA. Es de anotar que la base del programa de formación doctoral fue el proyecto sobre "Historia de la Universidad colombiana, 1774-1992", el que se ha enriquecido con la investigación y aporte de las tesis doctorales. Así, el objeto de estudio que es la Universidad, ha sido estudiado desde diversas tendencias historiográficas, en las que se resalta su papel en el contexto local y nacional. Esto nos ha permitido identificar algunas tendencias así: Historia institucional, historia social de la educación, élites y poder político, historia socio - cultural, historia de los saberes escolares; que nos han permitido identificar nuevos problemas, nuevas metodologías, nuevos actores, nuevas fuentes; que se contraponen al historicismo.
Karimi, Reza; Meyer, Doug; Fujisaki, Brad; Stein, Susan
Objectives. To evaluate whether a novel integrated longitudinal curricular activity to prepare graduating doctor of pharmacy (PharmD) students for 2 comprehensive examinations was successful, and to assess whether it engaged other pharmacy students in curricular discussion and learning.
In this thesis, the two themes of social studies from slovenian and english cross-curricular coursewares were analyzed. There were also two different types of curriculum planning. One type is based on content and the other is based on processes of cross-curricular integration. Each type of curriculum planning contains different social science theme; nevertheless, both were designed according to current curricular base. It was determined that cross-curricular coursewares particularly rely u...
Full Text Available Alzheimer′s disease (AD is a neurodegenerative disorder currently without an effective treatment. Impairment of memory is the initial and most significant symptom of AD. Memantine is the first novel class of AD medications acting on the glutaminergic system and produces symptomatic improvement in learning. Nootropic agents such as piracetam, aniracetam, and choline esterase inhibitors like donepezil are being used to improve memory, mood, and behavior, but the resulting side-effects associated with these agents have made their use limited. The present study was undertaken to investigate the effects of Rose alba (RA on learning and memory in mice. Male Swiss albino mice (3 months old weighing around 25 g were employed in the present investigation. Elevated plus-maze and passive-avoidance apparatus served as the exteroceptive behavioral models, and diazepam-induced amnesia served as the interoceptive behavioral models. RA (100 and 200 mg/kg p.o. was administered for eight successive days to the mice. Piracetam (200 mg/kg i.p. was used as a standard nootropic agent. RA improved learning and memory of mice as indicated by decreased transfer-latency and increased step-down latency. RA significantly reversed the amnesia induced by diazepam (1 mg/kg, i.p.. The results indicate that the aqueous extract of calyces of RA might prove to be a useful memory restorative agent in the treatment of cognitive disorders.
Das, Saibal; Bandyopadhyay, Sanjib; Ramasamy, Anand; Mondal, Somnath
This study was done to evaluate possible hepatoprotective effects of aqueous leaf extracts of Basella alba in comparison with silymarin in paracetamol-induced hepatotoxicity in albino rats. Six groups of six albino rats each received orally for 6 weeks, vehicle, paracetamol (2 g/kg/day), paracetamol (2 g/kg/day) plus silymarin (50 mg/kg/day), paracetamol (2 g/kg/day) plus B. alba extract (60 mg/kg/day), paracetamol (2 g/kg/day) plus B. alba extract (80 mg/kg/day) and paracetamol (2 g/kg/day) plus B. alba extract (100 mg/kg/day). Hepatoprotective effect was evaluated by comparing serum bilirubin, serum glutamic oxaloacetic transaminase, serum glutamic pyruvic transaminase, proteins, alkaline phosphatase and liver histopathology. Results were represented as mean ± SEM. One-way ANOVA was done followed by post hoc Tukey's test with a highly significance level of P alba 100 mg/kg/day orally had significant hepatoprotective effect in paracetamol-induced hepatotoxicity in albino rats. The results were well comparable and even in some respects superior to standard drug silymarin. PMID:25347929
Full Text Available Morus alba L. is an important tree species planted widely in China because of its economic value. In this report, we investigated the influence of two arbuscular mycorrhizal fungal (AMF species, Glomus mosseae and Glomus intraradices, alone and together, on the growth of M. alba L. seedlings under greenhouse conditions. The growth parameters and physiological performance of M. alba L. seedlings were evaluated 90 days after colonization with the fungi. The growth and physiological performance of M. alba L. seedlings were significantly affected by the AMF species. The mycorrhizal seedlings were taller, had longer roots, more leaves and a greater biomass than the non-mycorrhizae-treated seedlings. In addition, the AMF species-inoculated seedlings had increased root activity and a higher chlorophyll content compared to non-inoculated seedlings. Furthermore, AMF species colonization increased the phosphorus and nitrogen contents of the seedlings. In addition, simultaneous root colonization by the two AMF species did not improve the growth of M. alba L. seedlings compared with inoculation with either species alone. Based on these results, these AMF species may be applicable to mulberry seedling cultivation.
Full Text Available The development time, survivoship and reproduction of Tuberolachnus salignus (Gmelin( Lachninae: Lachnini were studied on Salix alba at fi ve constant temperatures (17.5°C, 20°C, 22.5°C, 25°C and 27.5°C . The developmental time of immature stages ranged from 17.00 days at 17.5°C to 12.21 days at 25°C on Salix alba. The total percentage of survivorship of immature stages varied from 50% and 70% 17.5°C -20°C on S. alba. The largest r m valueoccurred with 0.2540 at 20°C on S. alba. The mean generation time of the population ranged from 13.595 days at 22.5°C to 19.60 days at 17.5°C on S. alba. The optimal temperature for Tuberolachnus salignus was 20°C.
Weisberg, Deena Skolnick; Hirsh-Pasek, Kathy; Golinkoff, Roberta Michnick
Decades of research demonstrate that a strong curricular approach to preschool education is important for later developmental outcomes. Although these findings have often been used to support the implementation of educational programs based on direct instruction, we argue that "guided play" approaches can be equally effective at delivering content…
Lucia Pereira Leite
Full Text Available The organization of the inclusive education is a slow and complex process, which has the necessity of investments in supports for all the scholar team. Aiming at spreading one of the actions carried out for the promotion of the inclusive educational practices in a municipal education system in a western city in the state of São Paulo, this paperwork has the objective of presenting an elaborated manual of orientations for the implementation of the individual curricular adaptations (ACIs for students who demand special educational necessities.(NEEs. The material was constituted on the basis of three data sets: 1 tabulation of the evaluations of the curricular adaptations already made; 2 the literature review; 3 analysis of the themes which have emerged during case discussion meetings mediated by the researchers with teachers from the Specialized Pedagogical Support Service (SAPE, with teachers and administrators from the common education system and the technical-pedagogical team. The final version of the manual contemplates the theoretical-operational aspects about the themes: flexibility and curricular adequation, inclusive education, definitions of NEEs, how SAPE works; and it finishes with a model proposal of ACI. It is expected that the spreading of this material can subside new curricular propositions for students with deficiency that are very distant from the academic level expected for the current scholar year.
The work of renewing curriculum in music education faces the inertia of current curricular practices and an education reform climate that is unfavorable toward such work. This article suggests that the development of music teacher agency is central to combating these challenges, and that the development of such agency relies on today's…
Sutton Trust, 2014
This Research Briefing analyses Office for National Statistics data and finds children from the most advantaged households benefit from significantly more spending on extra-curricular activities and private tutoring than their poorer peers. The brief also includes the Trust's annual polling on private tuition and new polling on parents and…
This document contains a cross-curricular cooperative learning experience that is designed to give high school students career and technical educational experiences in the areas of forensic sciences and criminalistics by doing the forensic work to "solve" a fictitious murder. The activities included in the cooperative learning experience are…
Fields, Andrew R.
University educators are concerned with student leadership development in order to generate much-needed leaders in every aspect of society. This sequential mixed methods study found that students who participate in a university co-curricular outdoor education leadership training program, combined with the experience of leading a wilderness…
Andrade, Maureen Snow
Institutions of higher education are widening access to meet demand and to realize the benefits of an educated citizenry. Widened access has resulted in increased learner diversity, and consequently, differing expectations for teaching and learning. Achieving desired learning outcomes in this context suggests the need to examine curricular design,…
Land, Tonia J.; Drake, Corey
In this study, we examined how curricular resources supported three expert teachers in their enactment of progressions. Using a video-stimulated interview process, we documented the multiple types of progressions identified, described, and enacted by the teachers. Results indicate that the teachers used four different types of…
Journal of Dental Education, 1980
Oral radiology curricular guidelines developed by the American Association of Dental Schools are provided. The guidelines describe minimal conditions under which a satisfactory educational experience can be offered. Principles of x-radiation, radiobiological concepts, radiological health, radiographic technique, radiographic quality, and darkroom…
This commentary explores theoretical alternatives for viewing the problem identified by Volny Fages and Virginie Albe in their article entitled Social issues in nanoscience and nanotechnology Master's degrees: The socio-political stakes of curricular choices. An approach to social research is suggested that would render visible the associations…
Moriana, Juan Antonio; Alos, Francisco; Alcala, Rocio; Pino, Maria-Jose; Herruzo, Javier; Ruiz, Rosario
Introduction: In this paper we study the possible influence of extra-curricular activities (study-related and/or sports) on academic performance of first- and second-year pupils in "Educacion Secundaria Obligatoria (ESO)" [N.T. seventh- and eighth-graders]. Method: We randomly selected 12 schools in the city (9 public and 3 private), and randomly…
Johnson, Daniel K. N.; Lybecker, Kristina M.; Taylor, Corrine H.
The authors investigated whether the curricular structure of an economics course (semester, trimester, or compressed block schedule) has an effect on an undergraduate's subsequent retention of course material, while controlling for other relevant differences. They tested separately for theoretical or process comprehension and for graphical…
James Woodcock continues his theme from "Teaching History 138" about the difference between superficial, thematic cross-curricularity and much more rigorous interdisciplinarity. His concern is to retain rather than compromise the integrity of the subject disciplines. Woodcock argues that interdisciplinary working adds value to learning…
Artz, Jerry L.
This project was designed to catalyze curricular changes to better prepare students for the workplace. Industrial managers provided a list of 16 characteristics valued in the workplace; most were NOT related to science course content. The project formed 5 teams each including 3M professionals and students. Each team developed curricular changes in one of the 16 areas. Team goals were to improve skills in communication, data analysis, business/economics, team problem solving, and cultural competency. Curricular changes realized include communication skill activities embodied in science courses and faculty communication teaching skill seminars; self learning tools in data analysis, statistics and model building; a new course developed with assistance from 3M personnel focusing on topics directly related to technological industries; high performance team problem solving training/coaching for faculty; workshops for students and faculty relative to importance of cultural competencies in the workplace; and a new course focusing on culture, team problem solving and conflict resolution in the technical workplace. Process for developing and content of curricular changes will be reported. *Thanks to: NSF GOALI CHE-99010782
This project was designed to catalyze curricular changes to better prepare students for the workplace. Industrial managers provided a list of 16 characteristics valued in the workplace: most were NOT related to science course content. The project formed 5 teams each including 3M professionals and students. Each team developed curricular changes in one of the 16 areas. Team goals were to improve skills in communication, data analysis, business/economics, team problem solving, and culture competency. Curricular changes realized include communication skill activities embodied in science courses and faculty communication teaching skill seminars, self learning tools in data analysis, statistics and model building, a new course developed with assistance from 3M personnel focussing on topics directly related to technological industries, high performance team problem solving training/coaching for faculty and workshops for students and faculty relative to importance of cultural competencies in the workplace, and a new course focusing on culture, team problem solving and conflict resolution in the technical workplace. Process for developing and content of curricular changes will be reported.
Reed, Timothy A.
The purpose of this study was to identify the leadership skills students believe they learned in co-curricular activities, to determine how those skills are used in the classroom, and to discover whether those skills enhance the academic experience for students. The results of this study provide information which can aid student affairs practitioners who are seeking ways to help students make the connection between the co-curricular and curricular leadership experiences. This study used ...
Full Text Available O presente artigo objetiva problematizar as políticas curriculares elaboradas e efetivadas nos governos FHC e Lula, a partir do contexto de reforma de Estado materializada na década de 1990. Nessa direção o estudo inicia abordando a política curricular no contexto da reforma de Estado, evidencia a proposta educacional do governo FHC, discute sua política curricular, via parâmetros curriculares nacionais, e finaliza analisando a política curricular implementada no primeiro ano do governo Lula.
O presente artigo objetiva problematizar as políticas curriculares elaboradas e efetivadas nos governos FHC e Lula, a partir do contexto de reforma de Estado materializada na década de 1990. Nessa direção o estudo inicia abordando a política curricular no contexto da reforma de Estado, evidencia a proposta educacional do governo FHC, discute sua política curricular, via parâmetros curriculares nacionais, e finaliza analisando a política curricular implementada no primeiro ano do governo Lula....
Morus alba is an important plant for sericulture and has a high medicinal value. In this study, two flavonoids (kuwanons G and O) with antiparasitic activity were isolated from the root bark of M. alba by bioassay-guided fractionation. The chemical structures were determined by pectroscopic analys...
In this paper I conduct a historical analysis of the emergence of ALBA in Nicaragua prior to Daniel Ortega's return to the presidency and the country's official membership in the initiative from January 2007 on. I argue that ALBA is a rival structure that evolved from the contradictions inherent in hegemonic globalisation. Within the framework of…
Schneeberger, D. M.; Pieri, D. C.
Alba Patera presents styles of volcanism that are unique to Mars. Its very low profile, large areal extent, unusually long and voluminous lava flows, and circumferential graben make it among Mars' most interesting volcanic features. Clues to Alba's volcanic history are preserved in its morphology and stratigraphy. Understanding the relationship of lava flow morphology to emplacement processes should enable estimates of viscosity, effusion rate, and gross composition to be made. Lava flows, with dimensions considered enormous by terrestrial standards, account for a major portion of the exposed surface of Alba Patera. These flows exhibit a range of morphologies. While most previous works have focused on the planimetric characteristics, attention was drawn to the important morphological attributes, paying particular attention to what the features suggest about the emplacement process.
Full Text Available Nymphaea alba also known as the European White Waterlily, White Lotus or Nenuphar, is an aquatic flowering plant of the family Nymphaeaceae. The flowers are white and they have many small stamens inside. It contains the active alkaloids nupharine and nymphaeine, and is a sedative and an aphrodisiac/an aphrodisiac.In this study, the antioxidant activity of aqueous and ethanolic extracts from flower of Nymphaea alba was evaluated by various antioxidant assays including total antioxidant, hydrogen peroxide scavenging and nitric oxide scavenging activities. Both extracts have exhibited significant antioxidant activity in DPPH, Nitric oxide and Hydroxyl radical induced invitro assay methods. The results indicate that both the extracts firmly possess strong antioxidant effects .Comparatively the ethanolic flower extract showed more antioxidant activity than the aqueous extracts. The results obtained from the present study indicate that the Nymphaea alba flower extract can be a potential source of natural antioxidant
Ahmed, Azaj; Shamsi, Anas; Bano, Bilqees
Phytocystatins belong to the family of cysteine proteinases inhibitors. They are ubiquitously found in plants and carry out various significant physiological functions. These plant derived inhibitors are gaining wide consideration as potential candidate in engineering transgenic crops and in drug designing. Hence it is crucial to identify these inhibitors from various plant sources. In the present study a phytocystatin has been isolated and purified by a simple two-step procedure using ammonium sulfate saturation and gel filtration chromatography on Sephacryl S-100HR from Brassica alba seeds (yellow mustard seeds).The protein was purified to homogeneity with 60.3% yield and 180-fold of purification. The molecular mass of the mustard seed cystatin was estimated to be nearly 26,000 Da by sodium dodecyl sulfate polyacrylamide gel electrophoresis as well as by gel filtration chromatography. The stokes radius and diffusion coefficient of the mustard cystatin were found to be 23A° and 9.4 × 10(-7) cm(2) s(-1) respectively. The isolated phytocystatin was found to be stable in the pH range of 6-8 and is thermostable up to 60 °C. Kinetic analysis revealed that the phytocystatin exhibited non-competitive type of inhibition and inhibited papain more efficiently (K(i) = 3 × 10(-7) M) than ficin (K(i) = 6.6 × 10(-7) M) and bromelain (K(i) = 7.7 × 10(-7) M respectively). CD spectral analysis shows that it possesses 17.11% alpha helical content. PMID:26748819
The main aim of this study is to highlight the wine-growing and wine-making potential of Alba County and the way it can be valorised. Alba county has a rich winegrowing and wine-making heritage, a fact which is due to the long-standing tradition of winegrowing on these area, as well as to the characteristics of the natural factors (relief, geology, climate, soil), favourable for obtaining high-quality wines, the reputation of which has been acquired at national and international competitions....
Yang, Seun-Ah; Jeon, Sang-Kyung; Lee, Eun-Jung; Im, Nam-Kyung; Jhee, Kwang-Hwan; Lee, Sam-Pin; Lee, In-Seon
The essential oil of silver fir (Abies alba) is known to help respiratory system and have easing and soothing effect for muscle. In the present study, we investigated the chemical composition, cytotoxicity and its biological activities of silver fir (Abies alba) essential oil. The composition of the oil was analyzed by GC-MS and bornyl acetate (30.31%), camphene (19.81%), 3-carene (13.85%), tricyclene (12.90%), dl-limonene (7.50%), α-pinene (2.87%), caryophyllene (2.18%), β-phellandrene (2.13...
Hennebelle, Thierry; Sahpaz, Sevser; Gressier, Bernard; Joseph, Henry; Bailleul, François
The neurosedative and antioxidative properties of some major compounds isolated from a citral chemotype of Lippia alba were investigated. Binding assays were performed on two CNS inhibitory targets: benzodiazepine and GABA(A) receptors. The most active compound was luteolin-7-diglucuronide, with half maximal inhibitory concentrations (IC(50)) of 101 and 40 microm, respectively. Fifteen compounds isolated from Lippia alba were tested for their radical scavenging capacities against DPPH. Four of the major compounds (verbascoside, calceolarioside E, luteolin-7-diglucuronide and theveside) were also tested for their antioxidant activity against superoxide radical-anion in cell-free (hypoxanthine-xanthine oxidase) and cellular (PMA-stimulated neutrophil granulocytes) systems. PMID:17705148
PROKOPIUK, DANTE BASILIO
Prosopis alba Griseb (algarrobo blanco) es una leguminosa arbórea que crece naturalmente en el Chaco argentino. Los frutos o algarrobas son dulces y tienen un apreciable valor proteico, por ello son utilizadas en la alimentación humana y animal, principalmente secas y molidas o en forma de extractos acuosos. El objetivo de este trabajo de tesis doctoral fue desarrollar un sucedáneo de café a partir de la algarroba de Prosopis alba Griseb. Para ello, se tostaron las algarrobas a seis temperatu...
Entre el parche y la ignominia : Políticas universitarias de permanencia y egreso en los estudios de posgrado: la experiencia del taller de escritura de tesis en el doctorado de Ciencias Sociales en la UBA, 2013-2014.
Esta ponencia surge de la experiencia registrada como docente del seminario de escritura en el doctorado de Ciencias Sociales de la UBA durante los primeros cuatrimestres del 2013 y del 20141. El seminario se propuso como respuesta a las problemáticas observadas en la cursada de los doctorandos: lentificación y tiempo de permanencia en el posgrado, el desfasaje entre materias cursadas y la baja cantidad de trabajos finales presentados, la demora y vencimiento en la entrega de tesis. Cabe acla...
Robert McKee Irwin
Este artículo describe el proceso de institucionalización del campo de estudios culturales en los Estados Unidos. El ejemplo de este proceso en la experiencia de la Universidad de California, Davis, donde se estableció hace ocho años un doctorado en estudios culturales, aunque idiosincrático, ilustra el tipo de problemas, tanto prácticos como intelectuales, que tal institucionalización ha provocado en este país. Eel artículo señala también dos áreas el contenido cultural y la gestión cultural...
Diana Agudelo; Juani Bretón-López; Jorge Poveda-Vera; Inmaculada Teva; Inmaculada Valor-Segura; Cynthia Vico
En este trabajo se realiza un análisis de las opiniones de los directores más productivos en Tesis Doctorales de las áreas académicas de la Psicología española entre 1992 y 2001. El método empleado fue una entrevista sobre diferentes aspectos del doctorado y cómo realizarlo con éxito. Las opiniones de los 21 directores entrevistados constituyeron la unidad de análisis. Los resultados revelan distintas perspectivas de los directores, destacando múltiples argumentos como razones ...
Osorio, Carlos Agustin Muniz
A general consensus exists that the present worldwide state of the natural environment is in crisis. Tied to this crisis, the social dimension presents a discouraging picture in aspects like violence and poverty. The predominant neoliberal economic system---ecocidal and genocidal---just as the production system that sustains it, affects this crisis. Puerto Rico, in its political and economic relationship with the United States of America, is not exempt of this situation. Education arises as an alternative to transform this reality. Science education has the potential to address these socio-environmental problems in a creative way. From a scientific educational framework, we conceptualized, designed and disseminated diverse approaches and tools that integrate socio-ecological and environmental aspects, as well as issues related to violence, conflict and peace. The central research questions were: At present, what are some of the main characteristics of the social-ecological and environmental global and local (glocal) issues and what relation do they have with formal education?; What is the ethical responsibility of science education when, facing social-ecological and environmental situations and issues concerning peace?; What educational foundations justify the "Praxis Educativa Ecopacifista de Enriquecimiento Curricular" as an alternative to the situations and issues considered?; What didactic tools do we propose?; What curricular design and revision processes do we propose? What dissemination processes do we propose? The nature of our methodology is qualitative and is centered around curricular design. It includes a research-theoretical dimension, a practical-research dimension, and systematizing of learning elements. We emphasize the conceptualization of the theoretical-philosophical and methodological dimensions of the ecopacifist approach and its fundamental principles. We highlight the praxis, integrating creativity, intelligence and talent development
Irene Maria Dietschi
The China Poems seem to be a cycle, because they comprise a period of nine years, from 1969 to 1978. Carol Berge portrays the Chinese world in the States, the shock of two cultures the encounter of East and West, of dark and bright. mysteryand clarity. East and West are painted as Siamese twins, Chang and Eng, as a unit, "connected by more than flesh." Although a unit, the twins are individuals, with an individual life. The world , here is seen as a unit, there are differences, there are...
Irene Maria Dietschi
Full Text Available The China Poems seem to be a cycle, because they comprise a period of nine years, from 1969 to 1978. Carol Berge portrays the Chinese world in the States, the shock of two cultures the encounter of East and West, of dark and bright. mysteryand clarity. East and West are painted as Siamese twins, Chang and Eng, as a unit, "connected by more than flesh." Although a unit, the twins are individuals, with an individual life. The world , here is seen as a unit, there are differences, there are East and West, but there is also a common denominator which connects differences - halves - which can be called the human condition . The Chinese immigrants, in their condition of newcomers , suffer the process of an unavoidable adaptation, the common conflict of strangers in an extraneous homeland. "Chinese mur miming Buddhist liturgies carelessly translated from Latin versions of the same repressive history."
Full Text Available Partindo de um quadro teórico neo-gramsciano crítico à globalização, este artigo aplica a nova teoria do regionalismo (NTR e a teoria do regionalismo regulatório (TRR à sua análise e teorização dos tratados de comércio da Aliança Bolivariana para os Povos da Nossa América (ALBA-TCP como regionalismo contra-hegemônico na América Latina e Caribe (ALC. A ALBA está centrada na ideia de um Socialismo do Século XXI, que, como (inicialmente também a Revolução Bolivariana da Venezuela, substitui a 'vantagem competitiva' pela 'vantagem cooperativa'. Em seu caráter de conjunto de processos multidimensionais e transnacionais a ALBA-TCP opera dentro de/transversalmente a um número de setores e escalas, ao mesmo passo que as transformações estruturais são movidas pela interação de agentes do Estado e agentes não estatais. A política de Educação Superior para Todos (ESPT do governo venezuelano rejeita a agenda neoliberal globalizada de mercadorização, privatização e elitismo e reinvindica educação pública gratuita em todos os níveis como um direito humano fundamental. A ESPT está sendo regionalizado em um espaço educacional emergente da ALBA e assume um papel-chave nos processos de democracia direta e participatória, dos quais a construção popular (bottom-up da contra-hegemonia e a redefinição política e econômica da ALC dependem. Antes de produzir sujeitos empreendedores conformes ao capitalismo global, a ESPT procura formar subjetividades ao longo de valores morais de solidariedade e cooperação. Isso será ilustrado com referência a um estudo etnográfico de caso da Universidade Bolivariana da Venezuela (UBV.This paper employs new regionalism theory and regulatory regionalism theory in its analysis and theorisation of the Bolivarian Alliance for the Peoples of Our America (ALBA as a counter-hegemonic Latin American and Caribbean (LAC regionalism. As (initially the regionalisation of Venezuela's Bolivarian
Newcomb, T. J.; Murphy, B R; Berkson, J. M.
Effective curricular design in natural resources should concentrate not only on critical technical content, but also on developing important themes in ver-increasing complexity as students proceed from introductory to capstone courses. We propose a set of perspectives /values (e.g., citizenship, respect, curiosity, liflong learning, and the role of science in society) and critical skills (e.g., communication, leadership, critical thinking, problem solving, and team working) that we believe sh...
José Ángel Vera Noriega
SUMMARYThe objective of this document is to present both the metatheorical principles of interculturality that underlies the intercultural pedagogic model for higher education, and describes the characteristics of educative model and finally to present the pattern of curricular construction by skills in Intercultural Universities that can eulogize the density and by the other side position the students with skills to obtain levels of excellence in certification tests and profession in conditi...
The organization of the inclusive education is a slow and complex process, which has the necessity of investments in supports for all the scholar team. Aiming at spreading one of the actions carried out for the promotion of the inclusive educational practices in a municipal education system in a western city in the state of São Paulo, this paperwork has the objective of presenting an elaborated manual of orientations for the implementation of the individual curricular adaptations (ACIs) for s...
Andre Keet; Nazir Carrim
In this paper we chronicle the development of Human Rights Education (HRE) in South Africa within contemporary structures and processes of curricular reform in the country. We argue that human rights have been constituted as a discursive regime within education that traverses all education policy texts: laws, white papers, guidelines, recommendations and regulations. As such it has found a distinct expression in the new schools' curricula for General Education and Training (GET) and Further E...
Full Text Available Directrices Curriculares objetivan la organización de cursos y carreras para la constitución de identidades profesionales. En este sentido, las Directrices Curriculares Nacionales para la Enseñanza de Grado en Enfermería definen los fundamentos para la formación de enfermeras en el país, apuntando al tipo de conocimiento considerado importante en la profesión. Nos apoyamos en los presupuestos de la obra de Michel Foucault para realizar un análisis textual de los discursos difundidos por las Directrices Curriculares de Enfermería, problematizándolos como una estrategia de gobernar y de hacer subjetivo que actúa sobre los cuerpos de las futuras enfermeras. Las reflexiones apuntan a un documento que se puede ver como un instrumento que pretende normalizar a las alumnas y constituirlas para que se vuelvan enfermeras. Así se define el perfil de la "buena" y de la "mala" profesional, sistematizando los cuerpos y sus actitudes, sin permitirles que piensen y que hagan las cosas de otro modo e instituyendo un "régimen de verdades" que produce cierto tipo de enfermera.
Teresa María Criado Vega
Full Text Available Archive of the house of Alba keeps a file on your prescription black ink mode of metalogalics. Throughout this work, we have studied the materials and processes as well as Castilian been collated with several recipes, and coeval with the same theme, as reflected in various Castilian recipes deposited on different backgrounds.
Oluwafemi Adebayo Oyewole
Full Text Available The antimicrobial effects of ethanolic extract of Basella alba against Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Candida albican was determined using the agar cup plate method. The phytochemical components of the ethanolic extracts of the leaf and stem of B. alba showed the presence of tannin, terpene, steroid, saponin, anthraquinone, and with carbohydrate only in the stem extracts. The result of this study showed that all the organisms except Candida albican. were susceptible to 60mg/ml and 100mg/ml. of extract. The minimum inhibitory concentration (MIC and minimum bactericidal concentration (MBC were also determined. The result obtained showed that the MIC and MBC for the ethanolic extract of the leaf and stem of P. aeruginosa, E. coli was 50mg/ml, while the MIC and MBC of S. aureus was 100mg/ml for the ethanolic extract of the leaf and stem of B. alba. The result of this study suggests that the ethanolic extracts of B. alba could be suitable for the treatment of diseases caused by S. aureus, P. aeruginosa and E. coli.
Full Text Available Objective : The objective of the present study was to evaluate the adaptogenic property of the ethyl acetate-soluble fraction of methanol extract of Morus alba roots against a rat model of chronic stress (CS. Materials and Methods : Rats were exposed to stress procedure for 21 days. The stress procedure was mild, unpredictable footshock, administered for 1 h once daily for 21 days. Rats were administered with the ethyl acetate soluble fraction of methanol extract of M. alba roots (25, 50 and 100 mg/kg p.o 1 h before footshock for 21 days and behavioral parameters were evaluated for cognitive dysfunction and depression using elevated plus maze and despair swim test, respectively. On day 21, rats were sacrificed immediately after stress and blood was collected for biochemical estimation. The adrenal gland and spleen were dissected for organ weight and the stomach was dissected for ulcer score. Results : CS significantly induced cognitive deficit, mental depression and hyperglycemia and increased blood corticosterone levels, gastric ulcerations and adrenal gland weight, but decreased the splenic weight. Pre-treatments with the ethyl acetate soluble fraction of methanol extract of M. alba roots (25, 50 and 100 mg/kg, p.o. significantly attenuated the CS-induced perturbations. Diazepam (1 mg/kg, p.o. was used as the standard antistress drug. Conclusion : The results indicate that M. alba possesses significant adaptogenic activity, indicating its possible clinical utility as an antistress agent.
Williams, Rachel Marie-Crane
This article is about the production of The House of Bernarda Alba in Her Majesty's Prison Holloway in London England. It is written from a personal perspective and focuses on the following topics, collaboration, a brief comparison of prison life in the US and the UK, the successful and unsuccessful experiences of participants, and their insights…
Nenadis, N.; Vervoort, J.J.M.; Boeren, J.A.; Tsimidou, M.Z.
The leaf methanol extract of Syringa oblata Lindl var. alba was investigated as a source of oleuropein and related compounds. The extract had a high total phenol content and a radical scavenging activity similar to that of the respective extract from Olea europaea leaves. HPLC-DAD characterisation o
S. Madhumitha and A. Indhuleka*
Full Text Available The study was designed to evaluate the cardioprotective effect of methanolic extract of Morus alba L. leaves against isoprenaline- induced myocardial infarction and was investigated by an in vivo method in rats. Male Wistar albino rats were divided into four groups (n=6. Group I rats served as normal control. Group II rats served as isoprenaline induced toxic control (110 mg/kg body weight which was injected intraperitoneally (i.p. for two consecutive days (14th and 15th days. Group III rats were given Morus alba intragastric intubation (500 mg/kg body weight for 15 days. Group IV rats were also given Morus alba as in Group III and additionally isoprenaline was given for two consecutive days (14th and 15th days.The results described the cardioprotective effect that was observed in Group IV which showed a significant (P< 0.05 decreased levels of TBARS and enhanced the activities of both enzymatic and non-enzymatic antioxidants (SOD, CAT, GPx and GSH in myocardial infarcted rats when compared to Groups II and III. In serum, the biomarkers (LDH, CK activities were significantly (P< 0.05 increased in Group II compared to pretreated Group IV. Histopathological studies were also co-relating with the above biochemical parameters. These findings concluded the cardioprotective effect of Morus alba on lipid peroxidation and antioxidant defense system during isoprenaline -induced myocardial infarction in rats.
Riedel, S. J.; Sakimoto, S. E. H.
Using high resolution MOLA (Mars Orbiter Laser Altimeter) topographic data to accurately model flow rates, we find that Alba Patera tube-fed flows within the mid to lower flanks could accommodate flow rates between 10 Pa s to 1.308 x 10(exp 6) Pa s. Additional information is contained in the original extended abstract.
Full Text Available The essential oil of Lippia alba is reported as an antifungal against human pathogenic microorganisms but few articles report its use as an alternative to synthetic fungicides on green mould control. The objective of this study was to determine chemical characteristics of L. alba essential oil and its antifungal activity against green molds as an alternative to synthetic fungicides. Essential oil was extracted by Clevenger hydrodistillation, characterized by GC-MS analysis, and the structure of the main compounds confirmed by ¹H and 13C-NMR spectroscopy. Microdilution assays evaluated the essential oil minimum inhibitory concentration (MIC and minimum fungicidal concentration (MFC. Commercial fungicides Ketoconazole and Bifonazole were used as control. Essential oil yield is of 0.15% and the major components are neral (33.32% and geranial (50.94%. The L. alba essential oil has MIC of 0.300-1.250 mg/mL and MFC of 0.600-1.250 mg/mL. Ketoconazole and Bifonazole show MIC ranging from 0.025-0.500 to 0.100-0.200 mg/mL, and MFC ranging from 0.250-0.100 to 0.200-0.250 mg/mL, respectively. L. alba essential oil is classified as citral type and the results indicate that it is a potential alternative to synthetic fungicides.
Glamočlija, Jasmina; Soković, Marina; Tešević, Vele; Linde, Giani Andrea; Colauto, Nelson Barros
The essential oil of Lippia alba is reported as an antifungal against human pathogenic microorganisms but few articles report its use as an alternative to synthetic fungicides on green mould control. The objective of this study was to determine chemical characteristics of L. alba essential oil and its antifungal activity against green molds as an alternative to synthetic fungicides. Essential oil was extracted by Clevenger hydrodistillation, characterized by GC-MS analysis, and the structure of the main compounds confirmed by (1)H and (13)C-NMR spectroscopy. Microdilution assays evaluated the essential oil minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC). Commercial fungicides Ketoconazole and Bifonazole were used as control. Essential oil yield is of 0.15% and the major components are neral (33.32%) and geranial (50.94%). The L. alba essential oil has MIC of 0.300-1.250 mg/mL and MFC of 0.600-1.250 mg/mL. Ketoconazole and Bifonazole show MIC ranging from 0.025-0.500 to 0.100-0.200 mg/mL, and MFC ranging from 0.250-0.100 to 0.200-0.250 mg/mL, respectively. L. alba essential oil is classified as citral type and the results indicate that it is a potential alternative to synthetic fungicides. PMID:24031788
Meadowfoam (Limnanthes alba L.) seed oil methyl esters (MFME), prepared by a standard transesterification procedure using methanol and sodium methoxide catalyst from refined meadowfoam oil (MFO), were evaluated as a potential biodiesel fuel. MFME contains the unusual 5(Z)-eicosenoate (64.2 wt %) an...
Escaler Puigoriol, Francesc Xavier
The ALBA synchrotron cooling system relies in two heat exchangers (EX07 A and B) that transfer heat from the system hot water to cold water coming from a cogeneration plant. As a result, the water temperature can be reduced to a given set point. This temperature set point is currently fixed at 21° C.
Full Text Available The scientific undertaking, focused on a specific methodology, quantified in the specialist literature, takes shape as a quantitative, qualitative, typological and cartographic knowledge of what is authentic, traditional and representative for Alba County. The result allows us to tackle the issue of the wooden churches, considered authentic values for the inhabitant of this county.
Rose Meri Trojan
O fato de que a estética constitua um dos princípios norteadores da organização curricular no Brasil impõe-nos uma reflexão sobre a concepção que a fundamenta e justifica. Para isso, situamos o princípio estético nos documentos normativos que definem e explicitam as atuais diretrizes curriculares nacionais para a educação básica. Indicamos os fundamentos que definem a concepção de estética adotada e suas relações com a ética e a política, que compõem a trilogia que deve orientar as práticas e...
Rose Meri Trojan
Full Text Available O fato de que a estética constitua um dos princípios norteadores da organização curricular no Brasil impõe-nos uma reflexão sobre a concepção que a fundamenta e justifica. Para isso, situamos o princípio estético nos documentos normativos que definem e explicitam as atuais diretrizes curriculares nacionais para a educação básica. Indicamos os fundamentos que definem a concepção de estética adotada e suas relações com a ética e a política, que compõem a trilogia que deve orientar as práticas educacionais, a fim de evidenciar as intenções que se abrigam em torno da estética da sensibilidade, revelando sua funcionalidade no atual estágio de desenvolvimento do modo de produção capitalista.The fact that aesthetics is one of the guiding principles for curricular organization in Brazil forces us to reflect upon its founding and justifying concept. To this end, we situate the aesthetic principle in the regulatory documents which define and detail the current national curricular guidelines for primary education. We also indicate the foundations that define the aesthetic concept adopted and its relationship with ethics and politics, which are the three pillars that should guide educational practices. Thus, we intend to highlight the purposes involved in the aesthetics of sensibility, revealing its function in the present development stage of the capitalist production mode.
Harris, Mary Sadama
This research sought to determine whether and how current local and national curricular mandates affect the science instruction of two exemplary Alabama elementary teachers. The study provides a description of the contextual backdrop of elementary teaching in Alabama and the curricular mandates resulting from federal legislation entitled The No Child Left Behind Act of 2001 that have been enacted across the state of Alabama. This study centers on the evolution of reform initiatives that impact the teaching of science in elementary schools. These reforms focus on student achievement, teacher accountability, subject matter testing, and federal legislation. The emphasis on accountability has created situations where teachers are, in any given year, faced with multiple program innovations focused on subject matter tested leaving other subjects areas such as science excluded from the curricula. Reform initiatives influential to this research were the Alabama Reading Initiative and Alabama's State Department of Education's mandated testing and progress monitoring of the Dynamic Indicators of Basic Early Literacy Skills (DIBELS) and how these reforms impact the elementary day and science instruction. The purpose of this research, which utilized a qualitative multiple case study design, was to understand how exemplary elementary science teachers in Alabama teach science given the curricular mandates that marginalize science instructional time. The central phenomenon centered on the curricular adaptations and negotiations teachers made in order to teach science. Data collected included classroom observations, semi-structured interviews, and artifacts. An inductive, interpretative approach to data analysis was used to allow for exploration of the sociocultural and sociopolitical influences on science teaching of these exemplary elementary teachers. Findings were constructed as narrative portraitures of each teacher and their science teaching bounded within their unique
Stuart, Mary; Lido, Catherine; Morgan, Jessica; May, Steve
This research will examine how different student groups engage with extra-curricular activities and what effect these activities have on their degree and graduate outcomes. Recent research has indicated that different student groups have different degree and employment outcomes, this research examines how different student groups engage with extra-curricular activities and what effect these activities have on their degree and graduate outcomes. It examines what extra-curricular activi...
Elcio Rodrigo Rufino; Walter José Siqueira; Márcia Ortiz Maio Marques; Carlos Augusto Colombo; Joaquim Adelino de Azevedo Filho; Antônio Lúcio Melo Martins
The aromatic and medicinal species Lippia alba is vigorous and rugged native to the South America (Atlantic Rainforest). Because it is an allogamous and self-incompatible species, natural populations have high morphological and chemical variability. This work had as objective to conduct a preliminary screening to identify new promising clones from a novel (recombinant) base population of Lippia alba with regard to its agronomic and phytochemical traits, using the linalool oil or chemotype as ...
Performance of ginger grass (Lippia alba) for traits related to the production of essential oil Desempenho da erva-cidreira (Lippia alba) para características relacionadas à produção de óleos essenciais
Paula Yuri Yamamoto; Carlos Augusto Colombo; Joaquim Adelino de Azevedo Filho; André Luiz Lourenção; Márcia Ortiz Mayo Marques; Guilherme Domingues da Silva Morais; Alisson Fernando Chiorato; Antônio Lúcio Mello Martins; Walter José Siqueira
Lippia alba (Verbenaceae) is a shrub whose essential oil has important biological, pharmacological, and aromatizing properties. To reach the sustained cultivation of new species with economic potential, the present study aimed to evaluate L. alba performance for fresh leaf matter (FM), leaf dry matter (DM), virus symptoms (VS - Cucumber mosaic virus, CMV), oil yield (OY), and oil chemical composition (OC), and to evaluate DM stability and adaptability. Ten genotypes of four chemical groups (c...
Vishwakarma, Pratima; Pandey, Abhay K; Mishra, Priyanka; Singh, Pooja; Tripathi, N N
Eleven essential oils isolated from higher plant species were assessed against the four isolates of Verticillium fungicola found on fruiting bodies of Agaricus bisporus. Eucalyptus citriodora and Lippia alba oils were more efficacious and completely inhibited the mycelial growth of fungal isolates. L. alba oil was fungistatic and fungicidal at 10- and 20-µL concentrations against all of the isolates, respectively, and was more potent than E. citriodora oil as well as some prevalent synthetic fungicides such as benomyl, ethylene dibromide, and phosphine. Eighty microliters of L. alba oil protected 500 g of fruiting bodies of A. bisporus for up to 7 d from infection of the fungus under in vivo conditions. The findings strengthen the possibility of L. alba oil as a plant-based protectant to enhance the shelf life of A. bisporus fruiting bodies. PMID:25746409
Full Text Available Artemisia herba-alba Asso., Asteraceae, is widely used in Morrocan folk medicine for the treatment of different health disorders. However, no scientific or medical studies were carried out to assess the cytotoxicity of A. herba-alba essential oil against cancer cell lines. In this study, eighteen volatile compounds were identified by GC-MS analysis of the essential oil obtained from the plant's aerial parts. The main volatile constituent in A. herba-alba was found to be a monoterpene, Verbenol, contributing to about 22% of the total volatile components. The essential oil showed significant antiproliferative activity against the acute lymphoblastic leukaemia (CEM cell line, with 3 µg/mL as IC50 value. The anticancer bioactivity of Moroccan A. herba-alba essential oil is described here for the first time.
Janardhan Reddy Koduru; Yoon-Young Chang; Jae-Kyu Yang; Im-Soon Kim
Biosorption is an ecofriendly wastewater treatment technique with high efficiency and low operating cost involving simple process for the removal of heavy metal ions from aqueous solution. In the present investigation, Morus alba L. fruit peel powder (MAFP) and iron oxide impregnated Morus alba L. fruit peel powder (IO-MAFP) were prepared and used for treating Co(II) contaminated aqueous solutions. Further the materials were characterized by using FTIR and SEM-EDX analysis. From FT-IR analysi...
Full Text Available In the present work, the effect of the Abies alba essential oil in two different concentrations on oxidative stability of chicken thigh muscles during chilled storage was investigated. In the experiment were chickens of hybrid combination Cobb 500 after 42 days of the fattening period slaughtered. All the broiler chickens were fed with the same feed mixtures and were kept under the same conditions. The feed mixtures were produced without any antibiotic preparations and coccidiostatics. After slaughtering was dissection obtained fresh chicken thigh with skin from left half-carcass which were divided into five groups (n = 5: C - control air-packaged group; A1 - vacuum-packaged experimental group; A2 - vacuum-packaged experimental group with ethylenediaminetetraacetic acid (EDTA solution 1.50% w/w; A3 - vacuum-packaged experimental group with Abies alba oil 0.10% v/w and A4 - vacuum-packaged experimental group with Abies alba oil 0.20% v/w. The Abies alba essential oil was applicate on ground chicken things and immediately after dipping, each sample was packaged using a vacuum packaging machine and storage in refrigerate at 4 ±0.5 °C. Thiobarbituric acid (TBA value expressed in number of malondialdehyde was measured in the process of first storage day of 1st, 4th, 8th, 12th and 16th day after slaughtering and expressed on the amount of malondialdehyde (MDA in 1 kg sample. The treatments of chicken things with Abies alba essential oil show statistically significant differences between all testing groups and control group, where higher average value of MDA measured in thigh muscle of broiler chickens was in samples of control group (0.4380 mg.kg-1 compared to experimental groups A1 (0.124 mg.kg-1, A2 (0.086 mg.kg-1, A3 (0.082 mg.kg-1 and A4 (0.077 mg.kg-1 after 16-day of chilled storage. Experiment results show that the treatment of chicken thigh with Abies alba essential oil positively influenced on the reduction of oxidative processes in thigh
Fino, Carlos Manuel Nogueira
The paper aims at showing how curricular complexity tends to be depleted by the use of digital platforms based on the SCORM (Sharable Content Object Reference Model) standard, which was created with the main purpose of recycling content as it is supposed to be independent both from the context of learning and the supporting technology also deemed to be neutral, all surrounded by a rhetoric of innovation and “pedagogical” innovation. The starting point of the discussion is García Perez’s mo...
Tubbs, Mary P.; Beane, James A.
In this 1979 replication of a 1974 survey, 234 high school principals provided information on perceived influences on curriculum, groups involved in curricular decision making, and use of 20 curricular arrangements and offerings, such as departmentalization, independent study, competencies, moral education, and unified studies. Five-year trends…
The paper aims a comparative analysis of curricula for Bachelor studies in the area of administrative sciences. The objectives of research focused on elaboration of a set of indicators, based on the curricular contents of the programmes from the first cycle in administrative sciences, aiming to size 'the Europeanism degree' and curricular compatibilisation degree between Romanian and European universities.
Professional discussion of curricular change and innovation is essential for maintaining and increasing the positive effects that music education can have on schoolchildren. Much recent discourse about curricular change has focused on critiques of the traditional large-ensemble model of music education, technological innovation applied to teaching…
McClure, Kevin R.
Colleges and universities in the United States have developed and implemented a wide array of opportunities for undergraduate students to learn about innovation and entrepreneurship. Drawing upon an institutional case study, this article examines why one public research university initiated and supported curricular and co-curricular offerings in…
Viana Orta, María Isabel
Concreciones curriculares (Proyecto Curricular de Centro y Programación de Aula) tras la reforma de la LOE y la adaptación al nuevo modelo educativo basado en la adquisción y desarrollo de competencias básicas.
Merton, Prudence; Froyd, Jeffrey E.; Clark, M. Carolyn; Richardson, Jim
We examined two curricular change efforts at a small, midwestern engineering and science college in order to explore how organizational culture influences curricular change processes. We found that the failure of one effort (measured by inability to sustain the curriculum over time) and the success of the other (the curriculum continues to be…
Andrea Ramírez González
Full Text Available Recibido 19 de mayo de 2011 • Aceptado 26 de agosto de 2011 • Corregido 27 de setiembre de 2011 Resumen. En el presente ensayo se desarrolla la importancia del rigor metodológico en una evaluación curricular. Se parte de que para su valoración, por parte de los interesados, es exigido que el evaluador muestre el rigor con el que se ha realizado el proceso, de tal manera que sea posible evidenciar elementos que la hacen válida, confiable y creíble. Para ello, se sustenta el rigor de la evaluación con base en la articulación de aspectos significativos, valorativos, teóricos, metodológicos, de participación de los actores y de ética. Estos permiten delimitar y desarrollar el objeto por evaluar. Por lo tanto, cada uno de estos aspectos forman parte esencial del camino a seguir en un proceso evaluativo. Abstract. This essay develops the importance of the methodological rigor in a curricular evaluation. The assessment of the curricular evaluation by the interested parties has to show the assessor’s rigor with which the process has been realized, in this way it is possible to demonstrate elements that make the evaluation valid, reliable and creditable. The rigor of the evaluation is sustained with the articulation of aspects that are significant, assessable, theoretical, and methodological, of participation of the actors and of ethics which allow delimiting and developing the object to be evaluated. Therefore, each of these aspects is an essential part of the way to continue in an evaluative process.
Graziela Teixeira de Oliveira
Full Text Available Introduction There are few studies reporting the antifungal activities of Lippia alba extracts. Methods A broth microdilution assay was used to evaluate the antifungal effects of Lippia alba extracts against seven yeast species of Candida and Cryptococcus. The butanol fraction was investigated by gas chromatography-mass spectrometry. Results The butanol fraction showed the highest activity against Candida glabrata. The fraction also acted synergistically with itraconazole and fluconazole against C. glabrata. The dominant compounds in the butanol fraction were 2,2,5-trimethyl-3,4-hexanedione, 3,5-dimethyl-4-octanone and hexadecane. Conclusions The butanol fraction may be a good candidate in the search for new drugs from natural products with antifungal activity.
Vaughn, S F; Boydston, R A; Mallory-Smith, C A
Ethyl ether, ethanol, and water extracts of meadowfoam (Limnanthes alba Hartweg ex. Benth.) seedmeal were prepared and bioassayed against velvetleaf (Abutilon theophrasti Medicus) and wheat (Triticum aestivum L. "Cardinal"). Both the ethyl ether and ethanol fractions, but not the water extract, inhibited velvetleaf and wheat radicle elongation. Fractionation of the extracts indicated that (3-methoxyphenyl)acetonitrile (3-MPAN) was the active compound from both extracts, comprising >97% of the active ethanol fraction. 3-Methoxybenzyl isothiocyanate, which had been previously shown to be the major breakdown product of glucolimnanthin, the majorL. alba glucosinolate, was not detected in either extract. Radicle elongation of velvetleaf and wheat were inhibited by 3-MPAN with I50 (the concentration required to inhibit growth by 50%) values of approximately 4 × 10(-4) M (velvetleaf) and 7×10(-4) M (wheat). PMID:24227117
César Vinícius Carvalheiro
Full Text Available This study aimed to evaluate the existence of leaf anatomic characteristics in Tabebuia alba changed by air pollutants, which could be used as tool for a bioindication program. The quantification of mutagenic events on pollen grains also were measured. For this, median leaves and pre-anthesis flowers were collected from the adult plants from three places of Curitiba and one place in Araucaria, all nearby to the air monitoring stations. The comparison of the four study sites showed a reduction in leaf area, an increasing of stomatal density, subepidermic layer, epidermis in both faces and the amount of micronucleus. Also, there was reduction of chlorophyllian parenchymas at the site where there was the higher average for the ozone level. It was concluded that these modifications might be a consequence of the effect of troposferic pollution on T. alba plants. However, further studies with this species would be necessary to confirm its potential for bioindication.
Aballe, Lucia; Foerster, Michael; Pellegrin, Eric; Nicolas, Josep; Ferrer, Salvador
The spectroscopic LEEM-PEEM experimental station at the CIRCE helical undulator beamline, which started user operation at the ALBA Synchrotron Light Facility in 2012, is presented. This station, based on an Elmitec LEEM III microscope with electron imaging energy analyzer, permits surfaces to be imaged with chemical, structural and magnetic sensitivity down to a lateral spatial resolution better than 20 nm with X-ray excited photoelectrons and 10 nm in LEEM and UV-PEEM modes. Rotation around the surface normal and application of electric and (weak) magnetic fields are possible in the microscope chamber. In situ surface preparation capabilities include ion sputtering, high-temperature flashing, exposure to gases, and metal evaporation with quick evaporator exchange. Results from experiments in a variety of fields and imaging modes will be presented in order to illustrate the ALBA XPEEM capabilities. PMID:25931092
Residual radioactive material guidelines for uranium were derived for the former Alba Craft Laboratory site in Oxford, Ohio. This site has been identified for remedial action under the Formerly Utilized Sites Remedial Action Program (FUSRAP) of the US Department of Energy (DOE). Single nuclide and total uranium guidelines were derived on the basis of the requirement that the 50-year committed effective dose equivalent to a hypothetical individual who lives or works in the immediate vicinity of the former Alba Craft Laboratory site should not exceed a dose of 30 mrem/yr following remedial action for the current use and likely future use scenarios or a dose of 100 mrem/yr for less likely future use scenarios (Yu et al. 1993). The DOE residual radioactive material guideline computer code, RESRAD, which implements the methodology described in the DOE manual for implementing residual radioactive material guidelines, was used in this evaluation
Sidorova V. N.
Full Text Available Nymphaea alba L. belongs to aerohydrophytes and has all typical features of such ecological group. We found out the followings anatomic and functional features which are adaptation to the surplus of water: 1 formation of astrosklereid, which are the mechanical fabrics; 2 presence of large intercells which serve as plant fixation; 3 absence of stomas on the lower side of leaf and submarine organs that alterate the interchange of gases. The mycrochemical ash analysis of plant vegetative organs showed the presence of crystals of strontium, sulfur, potassium, ferrum, calcium, sodium, nitrogen, which vary by accumulation, form, and sizes, in vegetative organs (leaf, root and stem. We proved that quantitative, anatomical, and physiological peculiarities of Nymphaea alba L. vegetative organs uncover the mechanism of adaptation of aerohydrophytes to environment factors. The adaptative mechanisms of plant and their functioning are changed under influence of surplus of water.
Gilberto D. Vargas
Full Text Available A young common barn owl (Tyto alba was referred to the Núcleo de Reabilitação da Fauna Silvestre (Nurfs, Federal University of Pelotas (UFPel, after been found in a barn of a brick factory in the urban area of Pelotas, Rio Grande do Sul, Brazil. The bird was apathic, weak and with crusty lesions in the featherless areas (eyes, beak, legs, and died soon after arrival at Nurfs. Necropsy and histopathological examination of the lesions were carried out. The hyperplasia and hypertrophy of the cutaneous lesions, several eosinophilic intracyto-plasmic inclusion bodies in epithelial cells (Bollinger bodies, as well as particles characteristic of poxvirus, observed by electronic microscopy, confirmed the infection by avian poxvirus, what highlights the importance of Tyto alba as carrier of the virus in the wild.
Andrea Ramírez González
Recibido 19 de mayo de 2011 • Aceptado 26 de agosto de 2011 • Corregido 27 de setiembre de 2011 Resumen. En el presente ensayo se desarrolla la importancia del rigor metodológico en una evaluación curricular. Se parte de que para su valoración, por parte de los interesados, es exigido que el evaluador muestre el rigor con el que se ha realizado el proceso, de tal manera que sea posible evidenciar elementos que la hacen válida, confiable y creíble. Para ello, se sustenta el rigor de la evalu...
S. Di Lonardo; Capuana, M.; Arnetoli, M.; R. GABBRIELLI; Gonnelli, C
Abstract Purpose This work was planned for providing a useful screening tool for the selection of Populus alba clones suitable for phytoremediation techniques. To this aim, we investigated variation in arsenic, cadmium, copper, and zinc tolerance, accumulation and translocation in three poplar clones through an in vitro screening. Poplars have been widely proposed for phytoremediation, as they are adaptable to grow on contaminated areas and able to accumulate metals...
P. Venkatalakshmi et al
The present study was designed to evaluate the anti ulcer effect of Basella alba in aspirin induced ulcerated rats. Aspirin induced ulcer was revealed by increased ulcer index, decreased gastric pH, increase in the levels of pepsin, Thio barbituric acid reactive substance (TBARS). Lipid hydroperoxides and decrease in the levels of enzymatic and non enzymatic antioxidants. Treatment with the plant extract brought back the altered parameters to normal.
P. Venkatalakshmi et al
Full Text Available The present study was designed to evaluate the anti ulcer effect of Basella alba in aspirin induced ulcerated rats. Aspirin induced ulcer was revealed by increased ulcer index, decreased gastric pH, increase in the levels of pepsin, Thio barbituric acid reactive substance (TBARS. Lipid hydroperoxides and decrease in the levels of enzymatic and non enzymatic antioxidants. Treatment with the plant extract brought back the altered parameters to normal.
The purpose of our thesis was to gain new honey analogous beekeeping product by feeding the bees with fir bark extracts (Abies alba Mill.) and to assess the suitability of the product as honey in addition to daily human consumption. In this regard, we first had to determine the appropriate concentration of the extract, by testing which concentrations would the bees prefere. After finding out an appropriate concentration, we prepared large quantities of solutions and fed...
Campmany, Josep; Marcos, Jordi; Massana, Valentí
ALBA synchrotron facility has a complete insertion devices (ID) laboratory to characterize and produce magnetic devices needed to satisfy the requirements of ALBA's user community. The laboratory is equipped with a Hall-probe bench working in on-the-fly measurement mode allowing the measurement of field maps of big magnetic structures with high accuracy, both in magnetic field magnitude and position. The whole control system of this bench is based on TANGO. The Hall probe calibration range extends between sub-Gauss to 2 Tesla with an accuracy of 100 ppm. Apart from the Hall probe bench, the ID laboratory has a flipping coil bench dedicated to measuring field integrals and a Helmholtz coil bench specially designed to characterize permanent magnet blocks. Also, a fixed stretched wire bench is used to measure field integrals of magnet sets. This device is specifically dedicated to ID construction. Finally, the laboratory is equipped with a rotating coil bench, specially designed for measuring multipolar devices used in accelerators, such as quadrupoles, sextupoles, etc. Recent improvements of the magnetic measurements laboratory of ALBA synchrotron include the design and manufacturing of very thin 3D Hall probe heads, the design and manufacturing of coil sensors for the Rotating coil bench based on multilayered PCB, and the improvement of calibration methodology in order to improve the accuracy of the measurements. ALBA magnetic measurements laboratory is open for external contracts, and has been widely used by national and international institutes such as CERN, ESRF or CIEMAT, as well as magnet manufacturing companies, such as ANTEC, TESLA and I3 M. In this paper, we will present the main features of the measurement benches as well as improvements made so far.
Parra Torres, Edwin; Rodríguez López, Nelson
The distribution of the plant species is usually related to the magnitude of the phenotypic plasticity (PF). With the purpose of to stablish the possible relationship between the magnitude of the PF and the ecological breadth in response to light availability, the PF during the ontogeny in clones of Lippia alba and Lippia origanoides was evaluated. Both species are congeneris and show differences in their distribution. Three random treatments of light availability were set up, low (33%...
Rus, Lavinia; Ielciu, Irina-Ioana; Ramona PĂLTINEAN; Vlase, Laurian; Ştefănescu, Cristina; Crişan, Gianina
The purpose of this study consisted in the identification of the macroscopic and microscopic characters of the vegetative and reproductive organs of Bryonia alba L., by the analysis of vegetal material, both integral and as powder. Optical microscopy was used to reveal the anatomical structure of the vegetative (root, stem, tendrils, leaves) and reproductive (ovary, male flower petals) organs. Histo-anatomical details were highlighted by coloration with an original combination of rea...
Lavinia M. RUS; Irina I. IELCIU; Ramona PĂLTINEAN; Vlase, Laurian; Ştefănescu, Cristina; Gianina C. CRIŞAN
The purpose of this study consisted in the identification of the macroscopic and microscopic characters of the vegetative and reproductive organs of Bryonia alba L., by the analysis of vegetal material, both integral and as powder. Optical microscopy was used to reveal the anatomical structure of the vegetative (root, stem, tendrils, leaves) and reproductive (ovary, male flower petals) organs. Histo-anatomical details were highlighted by coloration with an original combination of reagents for...
Eo, Hyun Ji; Park, Jae Ho; Park, Gwang Hun; Lee, Man Hyo; Lee, Jeong Rak; Koo, Jin Suk; Jeong, Jin Boo
Background Root bark of mulberry (Morus alba L.) has been used in herbal medicine as anti-phlogistic, liver protective, kidney protective, hypotensive, diuretic, anti-cough and analgesic agent. However, the anti-cancer activity and the potential anti-cancer mechanisms of mulberry root bark have not been elucidated. We performed in vitro study to investigate whether mulberry root bark extract (MRBE) shows anti-inflammatory and anti-cancer activity. Methods In anti-inflammatory activity, NO was...
Silvia Maican; Malina Cordos; Carmen Pastiu; Andreea Muntean
One of the most historical counties in Romania, Alba has a very rich and diverse touristic potential, that, until now is insufficiently exploited from the touristic point of view. Tourism in this part of Romania has seen a great growth in recent years, especially the rural tourism and ecotourism, a growth that is demonstrated by the increasing number and capacity of the tourist accommodations facilities in this area. Purpose – The major purpose of this article is to outline the evolution of t...
Krumova, S.; Motyka, Václav; Dobrev, Petre; Todorova, M.; Trendafilova, A.; Evstatieva, L.; Danova, K.
Roč. 19, č. 2 (2013), s. 26-30. ISSN 1310-0351 R&D Projects: GA ČR(CZ) GAP506/11/0774 Institutional research plan: CEZ:AV0Z50380511 Keywords : Artemisia alba * in vitro * endogenous cytokinins Subject RIV: EF - Botanics Impact factor: 0.136, year: 2012 http://www.agrojournal.org/19/02-06s.pdf
Pedras, M S; Zaharia, I L
The chemical structure and synthesis of sinalbin A is described. This cruciferous phytoalexin is produced by white mustard (Sinapis alba) after treatment with biotic and abiotic elicitors. In addition, a related metabolite, named sinalbin B, is present in extracts from elicited plants, but not in those from non-elicited controls. Sinalbin B, which was also synthesized, appears to be both a phytoalexin and a biosynthetic precursor of sinalbin A. PMID:11142844
Adriana Pavelková; Marek Bobko; Peter Haščík; Miroslava Kačániová; Jana Tkáčová
In the present work, the effect of the Abies alba essential oil in two different concentrations on oxidative stability of chicken thigh muscles during chilled storage was investigated. In the experiment were chickens of hybrid combination Cobb 500 after 42 days of the fattening period slaughtered. All the broiler chickens were fed with the same feed mixtures and were kept under the same conditions. The feed mixtures were produced without any antibiotic preparations and c...
Full Text Available Se ofrece una descripción de dos escenarios que modelan esta competencia en los estudiantes de la Escuela de Comunicación Social de la Universidad del Zulia (LUZ: diseño curricular y actuación comunicativa de los docentes, para constatar: (a estrategias de esfuerzo (contenido de enseñanza, teoría y práctica; (b estrategias de refuerzo (competencia oral de los docentes, función metalingüística empleadas para desarrollar habilidades de producción oral. Se analizaron los objetivos del diseño curricular para establecer categorías de comprensión, producción o ambos procesos orales y se observaron 12 docentes para caracterizar la competencia oral de su actuación en clase. Los resultados indican: (a resistencia de los docentes a los procesos de comprensión como bases para una efectiva producción; (b inaplicabilidad de los recursos del habla pública por los docentes de Periodismo. La actualización de los recursos y discursos en el área de la competencia comunicativa oral se hace necesaria, pues la dinámica de la nueva sociedad de la información no atiende modelos bidireccionales de interacción ni admite interlocutores incompetentes.
Jin, Lin; Zhao, Wan-shun; Guo, Qiao-sheng; Zhang, Wen-sheng; Ye, Zheng-liang
To ensure the stability of chemistry components and the convenience of operation, ultrasound method was chosen to study in this investigation. As the total common peaks area in chromatograms was set to be evaluation index, the influence on the technology caused by extraction time, ethanol concentration and liquid-to-solid ratio was studied by using single factor methodology, and the extraction technology of Paeoniae Radix Alba was optimized by using response surface methodology. The results showed that the extracting results were most affected by ethanol concentration; liquid-to-solid ratio came the second and extraction time thirdly. The optimum ultrasonic-assisted extraction conditions were as follow: the ultrasonic extraction time was 20.06 min, the ethanol concentration in solvent was 72.04%, and the liquid-to-solid ratio was 53.38 mL · g(-1), the predicted value of total common peaks area was 2.1608 x 10(8). Under the extraction conditions after optimization, the total common peaks area was 2.1422 x 10(8), and the relative deviation between the measured and predicted value was 0.86%, so the optimized extraction technology for Paeoniae Radix Alba is suitable and feasible. Besides, for the purpose of extracting more sufficiently and completely, the optimized extraction technology had more advantages than the extraction method recorded in the monogragh of Paeoniae Radix Alba in Chinese Pharmacopoeia, which will come true the assessment and utilization comprehensively. PMID:26677698
Full Text Available Agar cup plate method was used to determine the antimicrobial effects of Basella alba against Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Candida albican. Ethanolic extracts of the leaf and stem of B. alba revealed the presence of tannin, terpene, steroid, saponin, anthraquinone, and with carbohydrate present only in the stem extracts. The result of this study showed that S. aureus, P. aeruginosa and E. coli were susceptible to 60mg/ml and 100mg/ml of the extract while Candida albican was resistant. The minimum inhibitory concentration (MIC and minimum bactericidal concentration (MBC for the ethanolic extract of the leaf and stem were also determined. The MIC and the MBC for the leaf and stem extract of P. aeruginosa and E. coli was 50mg/ml while the MIC and the MBC for the leaf and stem extract of S. aureus was 100mg/ml. The result of this study suggests that the ethanolic extracts of B. alba was not suitable for the treatment of disease caused by Candida albican but could be suitable for the treatment of diseases caused by S. aureus, P. aeruginosa and E. coli.
Full Text Available The main aim of this study is to highlight the wine-growing and wine-making potential of Alba County and the way it can be valorised. Alba county has a rich winegrowing and wine-making heritage, a fact which is due to the long-standing tradition of winegrowing on these area, as well as to the characteristics of the natural factors (relief, geology, climate, soil, favourable for obtaining high-quality wines, the reputation of which has been acquired at national and international competitions. In order to render useful the wine tourism resources, the development of a specific infrastructure is needed, as well as the creation of complex tourist products, able to satisfy a wide range of tourist motivations. An efficient instrument to make productive the wine potential of a region is the „Wine Road" – a tourist trail which includes the tourist attractions of a delimited area, usually with a controlled designation of origin, and also a diverse range of tourist services (transportation, accommodation, catering leisure etc.. In Alba County, the „Wine Road" can be considered as a tourist attraction in itself, but also a means of harnessing the rich cultural-historical and natural heritage and, implicitly, the wine-growing and wine-making heritage.
Lee, Seoung Rak; Park, Jun Yeon; Yu, Jae Sik; Lee, Sung Ok; Ryu, Ja-Young; Choi, Sang-Zin; Kang, Ki Sung; Yamabe, Noriko; Kim, Ki Hyun
Mulberry, the fruit of Morus alba L., is known as an edible fruit and commonly used in Chinese medicines as a warming agent and as a sedative, tonic, laxative, odontalgic, expectorant, anthelmintic, and emetic. Systemic investigation of the chemical constituents of M. alba fruits led to the identification of a novel oxolane derivative, (R*)-2-((2S*,3R*)-tetrahydro-2-hydroxy-2-methylfuran-3-yl)propanoic acid (1), namely, odisolane, along with five known heterocyclic compounds (2-6). The structure of the new compound was elucidated on the basis of HR-MS, 1D and 2D NMR ((1)H-(1)H COSY, HSQC, HMBC, and NOESY) data analysis. Compound 1 has a novel skeleton that consists of 8 carbon units with an oxolane ring, which until now has never been identified in natural products. The isolated compounds were subjected to several activity tests to verify their biological function. Among them, compounds 1, 3, and 5 significantly inhibited cord formation in HUVECs. The action mechanism of compound 3, which had the strongest antiangiogenic activity, was mediated by decreasing VEGF, p-Akt, and p-ERK protein expression. These results suggest that compounds isolated from M. alba fruits might be beneficial in antiangiogenesis therapy for cancer treatment. PMID:27115720
Cattaneo, F; Costamagna, M S; Zampini, I C; Sayago, J; Alberto, M R; Chamorro, V; Pazos, A; Thomas-Valdés, S; Schmeda-Hirschmann, G; Isla, M I
The Prosopis alba seed is a waste material in the process to produce pod flour. To suggest a potential use of these seeds it is necessary to determine the nutritional, phytochemical and functional quality of cotyledon flour from Prosopis alba. This flour showed high level of proteins (62%), low content of total carbohydrate and fat. Free polyphenol (1150±20mg GAE/100g flour) and carotenoids (10.55±0.05mg β-CE/100g flour) compounds were the dominant compounds. The main identified constituents in the polyphenolic extracts were C- glycosyl flavones, including schaftoside, isoschaftoside, vicenin II, vitexin and isovitexin. The extract enriched in polyphenolic compounds exhibited ABTS(+) reducing capacity and scavenging activity of H2O2; and was able to inhibit phospholipase, lipoxygenase and cyclooxygenase, three pro-inflammatory enzymes. According to our results, the P. alba cotyledon flour could be considered as a new alternative in the formulation of functional foods or food supplements. PMID:27132827
The performance of the spectroscopic LEEM-PEEM experimental station at the ALBA Synchrotron is presented: XPEEM lateral resolution down to better than 20 nm, electron energy resolution below 0.15 eV, and excellent long-term stability. The spectroscopic LEEM-PEEM experimental station at the CIRCE helical undulator beamline, which started user operation at the ALBA Synchrotron Light Facility in 2012, is presented. This station, based on an Elmitec LEEM III microscope with electron imaging energy analyzer, permits surfaces to be imaged with chemical, structural and magnetic sensitivity down to a lateral spatial resolution better than 20 nm with X-ray excited photoelectrons and 10 nm in LEEM and UV-PEEM modes. Rotation around the surface normal and application of electric and (weak) magnetic fields are possible in the microscope chamber. In situ surface preparation capabilities include ion sputtering, high-temperature flashing, exposure to gases, and metal evaporation with quick evaporator exchange. Results from experiments in a variety of fields and imaging modes will be presented in order to illustrate the ALBA XPEEM capabilities
Aballe, Lucia, E-mail: email@example.com; Foerster, Michael; Pellegrin, Eric; Nicolas, Josep; Ferrer, Salvador [ALBA Synchrotron Light Facility, Carretera BP 1413, Km. 3.3, Cerdanyola del Vallès, Barcelona 08290 (Spain)
The performance of the spectroscopic LEEM-PEEM experimental station at the ALBA Synchrotron is presented: XPEEM lateral resolution down to better than 20 nm, electron energy resolution below 0.15 eV, and excellent long-term stability. The spectroscopic LEEM-PEEM experimental station at the CIRCE helical undulator beamline, which started user operation at the ALBA Synchrotron Light Facility in 2012, is presented. This station, based on an Elmitec LEEM III microscope with electron imaging energy analyzer, permits surfaces to be imaged with chemical, structural and magnetic sensitivity down to a lateral spatial resolution better than 20 nm with X-ray excited photoelectrons and 10 nm in LEEM and UV-PEEM modes. Rotation around the surface normal and application of electric and (weak) magnetic fields are possible in the microscope chamber. In situ surface preparation capabilities include ion sputtering, high-temperature flashing, exposure to gases, and metal evaporation with quick evaporator exchange. Results from experiments in a variety of fields and imaging modes will be presented in order to illustrate the ALBA XPEEM capabilities.
Laddha G. P.
Full Text Available A study of ancient literature indicates that diabetes was fairly well known and well conceived as an entity in India. The nature has provided abundant plant wealth for all the living creatures, which possess medicinal virtues. Therefore, there is a necessity to explore their uses and to conduct Pharmacognostic and pharmacological studies to ascertain their therapeutic properties. In fact, nowadays diabetes is a global problem. Hence, the present study aims to open new avenues for the improvement of medicinal uses of Morus alba. for the area for diabetes. Another important objective of such study is to bring the anti-diabetic medicinal plants sector on a firm scientific footing, raise awareness and add value to the resource. Dried petroleum ether (60-80°C extracts of leaves of Morus alba. were subjected for hypoglycemic activity in New Zealand rabbits (1.5-3.5 kg. Blood sugar level was determined using digital glucometer. The oral administration of leaf extracts at doses of 200 mg/ kg− lead to a significant blood glucose reduction. This laid the foundation to study the active compounds of such anti-diabetic plants that are responsible for the hypoglycemic activities. It also proves the traditional claim of Kachh region with regard to Morus Alba for its anti-diabetic activity.
Full text: In the flowers of Sinapis alba nectar is secreted by two pairs of nectaries and accumulated as drops between filaments and in the cavity of sepals whereas in Platanthera chlorantha nectar is produced and accumulated within a spur. Previous studies of these species revealed that after a period of secretion and cessation, rapid nectar resorption occurs. The aim of this study was the observation of nectar resorption by the nectaries using radiolabelled sucrose. During the peak of secretion the nectar accumulated in unpollinated flowers was replaced with the same volume of labelled sucrose and after 12-48 hrs of incubation, at the resorption phase, parts of S. alba flowers with nectaries as well as fragments of P. chlorantha spur were sampled and fixed for microautoradiographic studies. In S. alba the presence of [14C(U)] sucrose was detected at the base of nectaries, in phloem elements of main vascular strands supplying glands, whereas both epidermis and nectary parenchyma showed no traces of radiolabelled sugars. In P. chlorantha the presence of labelled sucrose was stated mainly in the walls of nectary cells, which indicate an apoplastic route of reabsorbed nectar. (author)
Bo Yoon Chang
Full Text Available Morus alba L. fruits have long been used in traditional medicine by many cultures. Their medicinal attributes include cardiovascular, hepatoprotective, neuroprotective and immunomodulatory actions. However, their mechanism of macrophage activation and anti-cancer effects remain unclear. The present study investigated the molecular mechanisms of immune stimulation and improved chemotherapeutic effect of M. alba L. fruit extract (MFE. MFE stimulated the production of cytokines, nitric oxide (NO and tumor necrosis factor-α (TNF-α and tumoricidal properties of macrophages. MFE activated macrophages through the mitogen-activated protein kinase (MAPKinase and nuclear factor-κB (NF-κB signaling pathways downstream from toll-like receptor (TLR 4. MFE was shown to exhibit cytotoxicity of CT26 cells via the activated macrophages, even though MFE did not directly affect CT26 cells. In a xenograft mouse model, MFE significantly enhanced anti-cancer activity combined with 5-fluorouracil and markedly promoted splenocyte proliferation, natural killer (NK cell activity, cytotoxic T lymphocyte (CTL activity and IFN-γ production. Immunoglobulin G (IgG antibody levels were significantly increased. These results indicate the indirect anti-cancer activity of MFE through improved immune response mediated by TLR4 signaling. M. alba L. fruit extract might be a potential anti-tumor immunomodulatory candidate chemotherapy agent.
Juan J Pinto
Full Text Available Cereals constitute a relevant part of human and domestic animal diet. Under storage conditions, one of the most significant problems of these crops is insect pests as the maize weevil (Sitophilus zeamais Motschulsky. This insect species is usually controlled by means of synthetic insecticides but problems as toxic residues and resistance has led to the search for more friendly control alternatives such as botanical insecticides. The aim of this research was to evaluate, under laboratory conditions, the insecticidal properties of the powder and the essential oil of peumo (Cryptocarya alba [Molina] Looser; Lauraceae leaves against S. zeamais. The variables assessed were toxicity by contact and fumigant activity, adult emergence (F1, repellent effect, and impact on wheat (Triticum aestivum L. seed germination. A completely randomized design was used with five treatments and 10 replicates. The higher mortality levels were obtained at 80 g powder kg-1 grain and 40 mL essential oil kg-1 grain of C. alba; in both cases, the mortality of adult S. zeamais surpassed 80%. The emergence of adults S. zeamais (F1 was reduced by 100% at 80 g powder kg-1 grain and 40 mL essential oil kg-1 grain. Germination of wheat seeds treated with C. alba powder and essential oil was not affected. Both, the powder and the oil treatments showed repellent effect, but not fumigant activity.
Full Text Available The biology of flowering and the micromorphology of Cornus alba flowers were studied using light and scanning electron microscopy. The flowering of white dogwood in 2008 lasted 35 days, and the lifespan of a single flower was 3 days. The number of flowers per inflorescence was variable (on the average, it was 89. The largest group of insects visiting the flowers of C. alba comprised Hymenoptera (mainly bees and andrenids, then ants, dipterans and beetles. They foraged the dogwood flowers most intensively between 11.00 and 15.00. The inconspicuous four-petalled flowers of C. alba were characterised by the occurrence of T-shaped, two-armed non-glandular trichomes covering the receptacle as well as observed on the petals of the corolla, the style of the pistil and the anthers in a smaller number. The trichomes were covered by a thick cuticle with characteristic outgrowths. They contained a living protoplast, and plastids were observed in the cytoplasm of the trichome cells. In addition, anomocytic stomata were found in the epidermis of the receptacle and in the epidermis of the corolla petals. The stigma of the pistil and the adaxial epidermis of the petals were composed of very numerous conical papillae.
Kaden, Ute Susanne; Székely, Balázs; Wiche, Oliver
In order to investigate the influence of the phosphorus nutritional status on the uptake of germanium (Ge) in biomass two species, white millet (Panicum miliaceum) and white mustard (Brassica alba) were grown and sampled in a greenhouse experiment. The cultivation took place on two different substrates. The plants were fertilized with different nutrient solutions which differed in their phosphate content, and artificial addition of Ge was held via the casting solution. During the test period, measurements of the pH value, electric conductivity, and phosphate content of the soil solution were conducted. To transfer germanium from soil and plant material in solution, melting and microwave digestion processes were done. The experiment showed that in both species the additional Ge supply also leads to an increasing germanium content in the aboveground plant material. The two species, however, behave differently in response to this Ge supply. Panicum miliaceum accumulates Ge in the above-ground parts of plants stem, leaf and fruit to a much greater extent than Brassica alba. On the other hand the Ge accumulation in the roots of both B. alba and P. miliaceum was very high. In case of B. alba the root content was found by far higher as compared to the other parts of the plant. The addition of phosphate in the system changes the behavior. Without additional Ge its natural uptake from soil decreases in both species but in B. alba it is more characteristic. Increasing Ge supply (for both species) leads to an increased Ge uptake, until it reaches a maximum, regardless of the presence of phosphate addition. Phosphate, on the other hand, has positive effects on Ge uptake only in the case of B. alba roots, and to a limited extent in roots of P. miliaceum. In addition, for Panicum miliaceum an increase of germanium mainly in the underground parts was achieved. A further addition of phosphate did not have a positive effect on a greater enrichment of germanium. Whereas in Brassica
Sporea, Dan; Sporea, Adelina; Timus, Clementina
In the frame of the European Union funded Comenius project "Hands-on Science", a network of very active high schools was created, aiming to attract students towards science study by offering them the possibility to learn and to express themselves through experiments. On the other side, our Institute coordinates the project "Science Education and Training in a Knowledge-Based Society - SET 2010", project supported by the Romanian Ministry of Education and Research, which targets the same audience by different means. The paper addresses some of the results of these two projects as they are linked with photonics teaching in high schools through extra curricular activities such as science clubs, science fairs, and national contests for high school students. The project results were introduced to the public at various conferences: ETOP Conference, France), NATO Advanced Workshop, Hungary), Hands-on Science Conference, Greece), Euroscience Forum, Germany), Communicating European Research, Belgium).
Full Text Available RESUMO Lippia alba é uma planta amplamente distribuída nas zonas tropicais, subtropicais e temperadas das Américas, África e Ásia. O óleo essencial de L. alba tem sido amplamente estudado, entretanto apresenta variações de produção. Portanto este estudo teve como objetivo realizar uma revisão dos principais quimiotipos, métodos de extração, composição e aplicação do óleo essencial de L. alba. Neste estudo são discutidos os principais quimiotipos e sua relação com fatores genéticos e características morfológicas. Também são discutidos os fatores que afetam o rendimento de produção, composição química, métodos de extração e do uso e da atividade biológica do óleo essencial de L. alba. Apesar da vasta literatura sobre os óleos essenciais de L. alba, ainda desenvolvimento de aplicações para a produção de cosméticos, fármacos e alimentos, bem como faltam definições agronomicas sobre o cultivo e melhoramento desta planta.
Full Text Available This study investigated the effects of the essential oil (EO from Lippia alba on biochemical parameters related to oxidative stress in the brain and liver of silver catfish (Rhamdia quelen after six hours of transport. Fish were transported in plastic bags and divided into three treatments groups: control, 30 µL L- 1 EO from L.alba and 40 µL L-1 EO from L.alba. Prior to transport, the fish were treated with the EO from L. alba (200 µL L -1 for three minutes, except for the control group. Fish transported in bags containing the EO did not have any alterations in acetylcholinesterase, ecto -nucleoside triphosphate diphosphohydrolase and 5'nucleotidase activity in the brain or superoxide dismutase activity in the liver. The hepatic catalase (CAT, glutathione-S-transferase (GST, glutathione peroxidase (GPx, nonprotein thiol and ascorbic acid levels were significantly lower compared to the control group. However, the hepatic thiobarbituric acid- reactive substances, protein oxidation levels and the lipid peroxidation/catalase+glutathione peroxidase (LPO/CAT+GPx ratio were significantly higher in fish transported with both concentrations of the EO, indicating oxidative stress in the liver. In conclusion, considering the hepatic oxidative stress parameters analyzed in the present experiment, the transport of previously sedated silver catfish in water containing 30 or 40 µL L-1 of EO from L. alba is less effective than the use of lower concentrations.
Ji Yeon Jeong
Full Text Available Melanin is a natural pigment that plays an important role in the protection of skin, however, hyperpigmentation cause by excessive levels of melatonin is associated with several problems. Therefore, melanogenesis inhibitory natural products have been developed by the cosmetic industry as skin medications. The leaves of Morus alba (Moraceae have been reported to inhibit melanogenesis, therefore, characterization of the melanogenesis inhibitory constituents of M. alba leaves was attempted in this study. Twenty compounds including eight benzofurans, 10 flavonoids, one stilbenoid and one chalcone were isolated from M. alba leaves and these phenolic constituents were shown to significantly inhibit tyrosinase activity and melanin content in B6F10 melanoma cells. To maximize the melanogenesis inhibitory activity and active phenolic contents, optimized M. alba leave extraction conditions were predicted using response surface methodology as a methanol concentration of 85.2%; an extraction temperature of 53.2 °C and an extraction time of 2 h. The tyrosinase inhibition and total phenolic content under optimal conditions were found to be 74.8% inhibition and 24.8 μg GAE/mg extract, which were well-matched with the predicted values of 75.0% inhibition and 23.8 μg GAE/mg extract. These results shall provide useful information about melanogenesis inhibitory constituents and optimized extracts from M. alba leaves as cosmetic therapeutics to reduce skin hyperpigmentation.
M Govindarajan; P Karuppannan
Objective: The present study deals with the investigation of larvicidal and ovicidal activities of benzene, hexane, ethyl acetate, methanol and chloroform leaf extract of Eclipta alba (E. alba) against dengue vector, Aedes aegypti (Ae. Aegypti). Methods: Twenty five early III instar larvae of Ae. aegypti was exposed to various concentrations (50-300 ppm) and was assayed in the laboratory by using the protocol of WHO 2005; the 24 h LC50 values of the E. alba leaf extract was determined by Probit analysis. For ovicidal activity, slightly modified method of Su and Mulla was performed. The ovicidal activity was determined against Ae. aegypti to various concentrations ranging from 100-350 ppm under the laboratory conditions. The egg hatch rates were assessed 48 h post treatment. Results: The LC50 values of benzene, hexane, ethyl acetate, methanol and chloroform extract of E. alba against early third instar larvae of Ae. aegypti were 151.38, 165.10, 154.88, 127.64 and 146.28 ppm, respectively. Maximum larvicidal activity was observed in the methanol extract followed by chloroform, benzene, ethyl acetate and hexane extract. No mortality was observed in control. Among five solvent tested the methanol extract was found to be most effective for ovicidal activity against Ae. aegypti. The methanol extracts exerted 100% mortality (zero hatchability) at 300 ppm. Conclusions: From the results it can be concluded the crude extract of E. alba was an excellent potential for controlling Ae. aegypti mosquito.
Hassan; El-Sayyed; Gamal; Badawy; Sobhy; Hassab; Elnabi; Ibrahim; El-Elaimy; Eman; Al; Shehari
Objective: To investigate the possible ameliorative effect of crude water extract of Morus alba(M. alba) leaves on retinopathy of rat pups maternally subjected to diabetes and/or Al intoxication.Methods: Both control and experimental groups were subjected to certain integrated approaches, namely, biochemical assessments, light microscopic investigation, transmission electron microscopic investigation, single cell gel electrophoresis(comet assay) and determination of DNA fragmentation.Results: The retina of pups of diabetic and/or Al-intoxicated mothers exhibited abnormal alterations in retinal cell layers including retinal pigmented epithelium, photoreceptor inner segment and ganglion cells. Increased incidence of DNA fragmentation and apoptosis were evident in pups of diabetic and/or Al-intoxicated mothers. However, retina of pups maternally received M. alba extract plus diabetes or Al-intoxicated alone or in combination showed marked amelioration. Less degree of ameliorations was seen in retina of pups maternally subjected to combined treatment. Furthermore, application of crude water extract of M.alba resulted in amelioration of the alterations of maternal serum glucose as well as Al concentration.Conclusions: Based on the results of the present study, M. alba extract is effective against experimentally diabetic and Al-induced developmental retinopathy.
Ivonete Benedet Fernandes Coan
Full Text Available Este texto faz parte da dissertação de mestrado em andamento que tem como objetivo principal analisar os textos sobre alfabetização com letramento contidos na Proposta Curricular de Santa Catarina, no sentido de identificar conceitos e encaminhamentos efetuados pelo Estado catarinense aos professores da rede estadual de ensino por meio dessa política pública. A pesquisa orienta-se na concepção histórico-crítica e adota como método a análise documental e a pesquisa bibliográfica com revisão de literatura sobre as categorias pesquisadas. As respostas ao problema de pesquisa identificaram, precariedade na formação de professores; complexidade dos textos que compõem a Proposta e influência do sistema neoliberal sobre as políticas públicas educacionais brasileiras como fatores que concorrem para a permanência de índices de analfabetismo, repetência e evasão escolar no Estado de Santa Catarina. A elaboração do componente curricular catarinense teve início no final dos anos 1980 e a última atualização foi editada em 2005. Neste artigo, escreve-se o processo de construção dessa Proposta a partir do Plano de Ação 88/91 até os Cadernos Temáticos publicados em 2005.
Solís Ramírez, Emilio; Porlán Ariza, Rafael; Rivero García, Ana
En esta comunicación se presentan algunos instrumentos de investigación para representar las Concepciones Curriculares del Profesorado de Ciencias. Dichos instrumentos se han construido y experimentado utilizando como técnica el análisis de contenidos de documentos escritos. Tienen como Marco teórico los referentes conceptuales del Proyecto curricular IRES (Investigación y Renovación Escolar). In this communication some investigation instruments are presented to represent the Curricular Co...
Full Text Available Estudos sobre sistemas reprodutivos têm indicado o predomínio da autoincompatibilidade de ação tardia (AIT em Bignoniaceae, embora poucas espécies tenham sido investigadas e ocorram outros tipos de sistemas reprodutivos na família. O presente estudo objetivou determinar o sistema reprodutivo de T. roseo-alba através de experimentos de polinizações controladas, análise histológica dos eventos posteriores à polinização, verificação do desenvolvimento in situ dos tubos polínicos e testes de germinação de sementes. Apesar de os tubos polínicos penetrarem e fecundarem a maioria dos óvulos em pistilos autopolinizados, o aborto de 100% dos mesmos foi verificado e, embora sua abscisão tenha ocorrido entre o quarto e o sexto dia após o início da antese, observou-se um ligeiro crescimento dos óvulos e do ovário precedendo a abscisão, porém inferior ao crescimento nos pistilos submetidos à polinização cruzada. A endospermogênese inicial e a formação do tubo proembriônico também foram mais lentas nos pistilos autopolinizados. A longevidade dos pistilos autopolinizados foi maior que a de pistilos não polinizados, e a taxa de germinação de sementes foi de 93%, sendo todas as sementes monoembriônicas. Os resultados demonstram que T. roseo-alba é espécie auto-estéril, destituída de poliembrionia e que apresenta AIT pós-zigótica.Breeding system studies have indicated the predominance of late-acting self-incompatibility (LSI in Bignoniaceae, despite the relatively few species investigated, and the occurrence of other kinds of breeding systems in this family. This study aimed to determine the breeding system in T. roseo-alba by means of controlled experimental pollination, histological analysis of post-pollination events, and studies of pistil longevity, in situ pollen tube growth and seed germination. Despite pollen tube penetration and fertilization of most ovules of selfed pistils, 100% of these pistils aborted
Full Text Available Alba is a town of over 30 000 inhabitants located along the Tanaro River (Piedmont, northwestern Italy and is famous for its wine and white truffles. Many important industries and companies are based in Alba, including the famous confectionery group Ferrero.
The town suffered considerably from a flood that occurred on 5–6 November 1994. Forty-eight percent of the urban area was inundated, causing severe damage and killing nine people. After the flood, the Alba area was analysed in detail to determine the reasons for its vulnerability.
Information on serious floods in this area since 1800 was gathered from official records, state technical office reports, unpublished documents in the municipal archives, and articles published in local and national newspapers. Maps, plans and aerial photographs (since 1954 were examined to reconstruct Alba's urban development over the last two centuries and the planform changes of the Tanaro River.
The results were compared with the effects of the November 1994 flood, which was mapped from aerial photographs taken immediately after the flood, field surveys and eyewitness reports.
The territory of Alba was subdivided into six categories: residential; public service; industrial, commercial and hotels; sports areas, utilities and standards (public gardens, parks, athletics grounds, private and public sport clubs; aggregate plants and dumps; and agriculture and riverine strip. The six categories were then grouped into three classes with different flooding-vulnerability levels according to various parameters. Using GIS, the three river corridors along the Tanaro identified by the Autorità di Bacino del Fiume Po were overlaid on the three classes to produce a final map of the risk areas.
This study shows that the historic floods and their dynamics have not been duly considered in the land-use planning of Alba. The zones that were most heavily damaged in the 1994 flood were
Luino, F.; Turconi, L.; Petrea, C.; Nigrelli, G.
Alba is a town of over 30 000 inhabitants located along the Tanaro River (Piedmont, northwestern Italy) and is famous for its wine and white truffles. Many important industries and companies are based in Alba, including the famous confectionery group Ferrero. The town suffered considerably from a flood that occurred on 5-6 November 1994. Forty-eight percent of the urban area was inundated, causing severe damage and killing nine people. After the flood, the Alba area was analysed in detail to determine the reasons for its vulnerability. Information on serious floods in this area since 1800 was gathered from official records, state technical office reports, unpublished documents in the municipal archives, and articles published in local and national newspapers. Maps, plans and aerial photographs (since 1954) were examined to reconstruct Alba's urban development over the last two centuries and the planform changes of the Tanaro River. The results were compared with the effects of the November 1994 flood, which was mapped from aerial photographs taken immediately after the flood, field surveys and eyewitness reports. The territory of Alba was subdivided into six categories: residential; public service; industrial, commercial and hotels; sports areas, utilities and standards (public gardens, parks, athletics grounds, private and public sport clubs); aggregate plants and dumps; and agriculture and riverine strip. The six categories were then grouped into three classes with different flooding-vulnerability levels according to various parameters. Using GIS, the three river corridors along the Tanaro identified by the Autorità di Bacino del Fiume Po were overlaid on the three classes to produce a final map of the risk areas. This study shows that the historic floods and their dynamics have not been duly considered in the land-use planning of Alba. The zones that were most heavily damaged in the 1994 flood were those that were frequently affected in the past and sites of
Patrícia M.O. Pierre
Full Text Available Cytogenetic analyses, of pollen viability, nuclear DNA content and RAPD markers were employed to study three chemotypes of Lippia alba (Mill. (Verbenaceae in order to understand the genetic variation among them. Different ploidy levels and mixoploid individuals were observed. This work comprises the first report of different chromosome numbers (cytotypes in L. alba. The chromosome numbers of La2-carvone and La3-linalool chemotypes suggested that they are polyploids. Flow cytometric analysis showed an increase of nuclear DNA content that was not directly proportional to ploidy level variation. A cluster analysis based on RAPD markers revealed that La3-linalool shares genetic markers with La1-citral and La2-carvone. The analysis showed that the majority of genetic variation of La3-linalool could be a consequence of ixoploidy. ur data indicates that sexual reproduction aong those three chemotypes is unlikely and suggests the beginning of reproductive isolation. The results demonstrated that chromosome analysis, nuclear DNA content estimation and RAPD markers constitute excellent tools for detecting genetic variation among L. alba chemotypes.Análises citogenéticas, de viabilidade do pólen, do conteúdo de DNA nuclear e marcadores RAPD foram empregadas no estudo de três quimiotipos de Lippia alba (Mill. (Verbenaceae visando contribuir para o entendimento da variação genética entre os mesmos. Diferentes níveis de ploidia e indivíduos mixoploides foram observados. Este trabalho compreende o primeiro relato de diferentes números cromossômicos (citótipos em L. alba. Os números cromossômicos dos quimiotipos La2-carvona e La3-linalol sugere que eles seja poliploides. A análise da citometria de fluxo mostrou um aumento do conteúdo de DNA nuclear que não foi diretamente proporcional à variação no nível de ploidia. A análise de agrupamento baseada nos marcadores RAPD demonstrou que La3-linalol compartilha marcadores genéticos com La1
Membiela, Pedro (ed.); Suárez, M.; Nogueiras, E.
The internal evaluation of a Natural History curricular project is shown, which is carried out within the framework of educational research action, through triangular prospection of opinion from students, teachers and external advisers.
Takes a unique approach to cross-curricular teaching in the primary classroom. Providing eight original adventure stories, this title builds up a suite of resources and activities for teachers to use in the classroom
Marques, Cristina Maria Mendes Marques
Com a implementação do Processo de Reorganização Curricular do Ensino Básico em Portugal, aprovado pelo Decreto-Lei nº6/2001 de 18 de Janeiro, foi criada uma nova área curricular disciplinar - Ciências Físicas e Naturais - que integra, para o 3º ciclo do Ensino Básico, as disciplinas de Ciências Naturais e de Ciências Físico-Químicas. Esta inovação curricular, também concretizada no documento normativo “Orientações Curriculares para as Ciências Físicas e Naturais”, assenta numa perspectiva in...
Luján Mora, Sergio (coord.)
Trabajo del curso “Adaptaciones Curriculares para la Inclusión de Estudiantes con Necesidades Educativas Especiales” impartido en la Escuela Politécnica Nacional (Quito, Ecuador) del 16 al 22 de marzo de 2016.
Greene, Michael B.
This article examines two different, but interrelated approaches to reduce school violence: school-based curricular programs and efforts to change school climate. The state of the research for each is reviewed and the relationship between them is explored.
Wilson, Christopher James
We describe specific curricular decisions employed at Butler University that have resulted in student achievement in the actuarial science major. The paper includes a discussion of how these decisions might be applied in the context of a new actuarial program.
Lin, Shu-Mei; Lin, Bo-Hong; Hsieh, Wan-Mei; Ko, Huey-Jiun; Liu, Chi-Dong; Chen, Lih-Geeng; Chiou, Robin Y-Y
Mature Basella alba L. fruit, with dark blue skin and deep red-violet flesh, is a potential source of natural colorants. Its pigment components and bioactivities deserve particular attention and investigation. In this study, fruit flesh was extracted with 80% methanol (containing 0.2% formic acid) and subjected to solid-phase extraction, semipreparative HPLC isolation, mass spectrophotometric analysis, and structural elucidation. The major red pigment was identified as gomphrenin I. Its quantity increased with the increase of fruit maturity. The gomphrenin I extract yield from ripe fruits was 36.1 mg/100 g of fresh weight. In addition to gomphrenin I, betanidin-dihexose and isobetanidin-dihexose were also detected. The antioxidant activities of gomphrenin I determined by Trolox equivalent antioxidant capacity (TEAC), α,α-diphenyl-β-picrylhydrazyl (DPPH) radical scavenging activity, reducing power, and antioxidative capacity assays were equivalent to 534 μM Trolox, 103 μM butylated hydroxytoluene (BHT), 129 μM ascorbic acid, and 68 μM BHT at 180, 23, 45, and 181 μM, respectively. The anti-inflammatory function was tested at concentrations of 25, 50, and 100 μM in murine macrophages stimulated with lipopolysaccharide (LPS). The results revealed that gomphrenin I suppressed LPS-induced nitric oxide (NO) production in a dose-dependent manner and decreased PGE(2) and IL-1β secretions at the highest concentration tested. The transcriptional inhibitory activities of gomphrenin I on the expression of inflammatory genes encoding iNOS, COX-2, IL-1β, TNF-α, and IL-6 were also observed. It is of merit to identify gomphrenin I as a principal pigment of B. alba fruits and as a potent antioxidant and inflammatory inhibitor. These findings suggest that B. alba fruit is a rich source of betalains and has value-added potential for use in the development of food colorants and nutraceuticals. PMID:20839771
Full Text Available Orobanche alba Stephan ex Willd is an achlorophyllous root parasite rare in Poland. It prefers dry and sunny slopes, xerothermic grasslands and pastures, mountain pastures, light scrubs, and rock fissures and ledges. The hosts of O. alba include Thymus polytrichus A. ern. ex Borbás, Clinopodium vulgare L. and Origanum vulgare L. The tick and fleshy 10-70 cm high stem in this species bears an inflorescence composed of zygomorphic, white or yellow “spotted” flowers covered by purple glandular trichomes. Glandular trichomes of this type are also borne on other parts of the plant, i.e. on the stem, scaly leaves, sepals, filaments, and the style. The secondary metabolites secreted by the glandular trichomes are related to defense of plants against the attack of herbivores and pathogens or act as attractants to pollinators or for fruit dispersal. The micromorphology and histochemistry of the glandular trichomes in O. alba were examined using scanning electron and light microscopes. In order to determine the type of secondary metabolites produced by the trichomes, the flowing histochemical assays were used: Sudan III and neutral red for detection of lipophilic compounds, IKI for detection of starch, and FeCl3 for detection of phenolic compounds. The peltate glandular trichomes of O. alba were characterised by a varied length (0.15‑0.48 mm and different activity phases. The trichome was composed of one larger basal epidermal cell, 1-3 hyaline stalk cells with a striated cuticle, a neck cell with a smooth cuticle on the surface, and a globose head formed of 8-18 secretory cells arranged in a circle. Many stalk cells of the trichomes, particularly those located on the corolla, contained anthocyanins, which give the trichomes dark carmine colour. In turn, the colour of the heads was dependent on trichome age: the heads were brown in older trichomes and yellow in younger hairs. Secretion was produced by both young and older trichomes. It penetrated
Villalobos Soto, Dani José; Pinho De Oliveira, María Fátima
Desestabilización y la dificultad para cumplir con la cuota de suministro de petróleo en los países de América latina y del Caribe han generado en estas economías evidentes y consuetudinarias crisis económicas que difícilmente enfrentan. Sin embargo, estos países están en la búsqueda de acuerdos y alianza que permitan darles respuestas eficientes y efectivas a los problemas económicos, sociales. Políticos yculturales. El ALBA, Alternativa Bolivariana para América, cuyo objetivo más importante...
It has been studied of the phases present in the solid industrial residues of the plant Comandante Pedro Soto Alba (Moas's tails). It is done a preliminary qualitative characterization by X ray diffraction. It is done a characterization by differential and gravimetric thermal analysis and a quantitative valuation of SO3 and H2O present in the samples. A complex of S and Al is detected. The results of SO3 are compared with those obtained by the gravimetric method to verify those of Al, an elemental analysis by neutron activation was solicitated. A formula for the complex of S and Al is proposed. (author)
Carine Travert; Faustin-Pascal T. Manfo; Serge Carreau; Paul Fewou Moundipa; Monsees, Thomas K.; Edouard Akono Nantia
In this study, Leydig cells were purified from 70 day-old Sprague Dawley male rats and incubated with 10 and 100 µg/mL of methanol extract of Basella alba (MEBa) for 4 hours followed by the evaluation of cell viability, steroid (testosterone and estradiol) production, and the level of aromatase mRNA. Results showed that MEBa did not affect Leydig cell viability. At the concentration of 10 µg/mL, MEBa significantly stimulated testosterone and estradiol production (p < 0.01 and p < 0.03, ...
AYENI, L.S.; Adedeji, O A; Okubena-Dipeolu, E. A.
Optimum and qualitative production of vegetables in the depleted soils during the dry season are best achieved through irrigation. Two experiments were concurrently conducted in 2010 to determine the effect of irrigated poultry manure on the vegetative growth and nutritional quality of Indian Spinach (Basella alba) in South Western Nigeria. Poultry manure (P) rates at 0 (P0+W), 5 (P1+W), 10 (P2+W), 15 (P3+W) and 20 t ha-1 (P4+W) were each irrigated with 6,000 litres of water per hectare (W) a...
Feres, Juliana Massimino; Martinez, Marcelo L L; Martinez, Carlos A; Mestriner, Moacyr A; Alzate-Marin, Ana Lilia
Microsatellite loci that were previously developed in the tropical tree Tabebuia aurea were used for the genetic analysis of Tabebuia roseo-alba populations. Nine of 10 simple sequence repeat markers were amplified, and the polymorphism was assessed in 58 individuals sampled from two stands in southeastern Brazil. All loci were polymorphic with Mendelian inheritance. The allele numbers were high, ranging from 5 to 13 in population I and 3 to 7 in population II, with means of 8.9 and 5.5, respectively. We conclude that these markers can be efficiently used for parentage and gene-flow studies. PMID:21564672
Pinho De Oliveira, María Fátima
En la presente investigación, se pretende analizar algunas de las ventajas competitivas de las empresas grannacionales como modelos empresariales dentro del marco del ALBA-TCP, motivado a que debido a la globalización como fenómeno mundial, aunado con las condiciones económicas de países asociados, se ven afectados por las competencias económicas de compañías a nivel mundial. Con la integración económica desarrollada en Europa con el fin de alcanzar la paz, el progreso y ocupar la mejor posic...
Full Text Available Sixteen isolates of Pezicula alba Guthr. were examined. The intensity of growth on various media, pathogenicity to apple fruits and twigs, colour of cultures and size of conidia were measured. Some isolates are pathogenic to fruits, some others to twigs; one isolate (only no. 19 is pathogenic to both twigs and fruits; many isolates are not - pathogenic at all. Culture growth, sporulation and size of conidia are not correlated with the pathogenicity of the isolate. The mean size of conidia is 21.29µm x 3.48µm.
Sorrentino, Andrea; Pereiro, Eva; Valcárcel, Ricardo; Ferrer, Salvador; Nicolas, Josep
Mistral is the soft X-ray full field microscopy beamline at the ALBA light source. The beamline is designed to have large source acceptance and to provide constant magnification at the exit slit for photon energies between 270 and 2600 eV. The monochromator is a variation of the Petersen plane grating monochromator in which a variable line spacing grating is used to maintain the beam focused at the exit slit, independently of the fixed focus constant, and to cancel aberrations. We present the alignment strategy used to compensate errors of the optical elements, and report about the commissioning results.
Die Schleiereule (Tyto alba) ist eine in fast allen Regionen der Erde vorkommende Eulenart. In Mitteleuropa erreicht sie die nördlichste Grenze ihres Verbreitungsgebiets. Man trifft sie hier in tiefergelegenen, waldarmen Gegenden an. Eine Arbeitsgruppe der Hessischen Gesellschaft für Ornithologie und Naturschutz (HGON) und des Deutschen Bund für Vogelschutz (DBV) führt im hessischen Main-Kinzig-Kreis seit 1976 Maßnahmen zum Schutz der Schleiereulen durch. Dazu gehören das Anbringen von Brutki...
Full Text Available São analisadas as características microscópicas entre os caules de Lippia alba e de Melissa officinalis, ambas conhecidas no Brasil como "ervas cidreiras" e consumidas pela população em virtude de suas propriedades sedativas e antiespasmódicas. A análise dos cortes transversais dos seus caules, que geralmente aparecem misturados às folhas das duas espécies em estudo, auxilia a diagnose da matéria prima vegetal.
CABANES RUBIRA, IGNACIO
Trabajo científico técnico. Se pretende justificar el interés e importancia que tiene la motivación y satisfacción laboral en el sector de la construcción, más concretamente en el gremio de los albañiles. Con este proyecto de investigación se pretenden conocer de primera mano las experiencias y vivencias de los albañiles de la construcción en su trabajo
Shahidul Haque, Md.; Monirul Islam, Md.; Abdur Rakib, Md.; Asraful Haque, Md.
Basella alba is a soft green vegetable, survives in adverse environmental circumstances, for example, very cold temperature although the mechanism and the temperature sensitivity in this species are not clarified. Pot experiment for cultivation of B. alba was carried out to examine the effects of low temperature on the synthesis of two enzymes, polyphenol oxidase (PPO) and peroxidase (POD) in leaf of this plant. They were exposed to 8 °C for 24 h, 48 h and 72 h periods and the respective cont...
Rebeca Vega Miche
El objetivo de este trabajo consiste en analizar cómo las competencias genéricas acordadas por el proyecto Tuning son compatibles con el modelo curricular cubano que persigue la formación integral del profesional. Se valora a partir de la experiencia de la licenciatura de química el desarrollo de las habilidades y capacidades de Tuning a partir de las diferentes actividades curriculares.
Neisy Rodríguez Morales; Ortelio Quero Méndez; Sergio Luis Rodríguez Suárez
The article shows the theoretical elements related with the conception of the curricular strategies and its instrumentation in the process of the student's of the Mathematical career formation - Physics. Examples are presented that demonstrate how to deal with the computer science's curricular strategy from the teaching process - learning of the subject Algebra I in the third year of the career. They give the possibility that the formation process be more effective, they facilitate...
Erickson, David Allen
Paradigmatic shifts in music education, supported by curricular reconceptualization and the braiding of “outside school” informal learning styles with more traditional formal learning patterns associated with classroom music, have developed slowly in North American schools. However, unlike popular music currently incorporated into Swedish, Finnish and British schools, most North American music programs maintain traditional band and choir paradigms as a curricular focus in middle and high scho...
The relationship between cultural diversity’s factors and the development of some structures belonging to students’ personality, represents a basic premise in studying intercultural education. One theme of this issue is related to curricular strategies focused on training situations, which enable students’ intercultural learning experiences and social performances awareness, as part of the multicultural society. The article Curricular premises and strategies in order to develop students’ inte...
Barnes, James L.
The purpose of the study was to identify the key descriptors of a definition of technology and curricular organizers for use in the study of technology. Seven panels were used for the three round Delphi to identify the key descriptors and curricular organizers. The panels included: (1) technology educators, (2) philosophers of education, (3) philosophers of technology, (4) historians of technology, (5) anthropologists of technology, (6) futurists, (7) industrialists/business leaders. A Th...
The graduation thesis deals with the case study of the computer science in the primary school from the perspective of cross-curricular integration. Teaching the computer science as an elective course offers many options for two-sided integration. Therefore, our goal was to establish the teachers' and pupils' experience of cross-curricular integration, on which occasions it is carried out, how pupils accept different forms of teaching, and how is that reflected in their motivation. We also pai...
Silmara Alessi Guebur Roehrig; Sérgio Camargo
Acreditando que a consolidação do movimento que prioriza as relações entre ciência, tecnologia e sociedade (CTS) na educação científica perpassa as decisões curriculares, buscamos compreender como esta vertente se insere nas Diretrizes Curriculares de física do Estado do Paraná (DCE/PR). Após caracterizarmos Educação com enfoque CTS, a partir de Ziman, Aikenhead e Yager, utilizamos a metodologia da Análise Textual Discursiva para estabelecer categorias de análise. A constituição dos dados se ...
El análisis de la educación en medios desde una perspectiva educativa y curricular es el objeto de este trabajo que enfatiza el desarrollo de las competencias que requieren los alumnos para su participación activa en el mundo actual. Se analizan los procesos de desarrollo curricular que, integrados por componentes políticos y técnicos, reflejan el tipo de sociedad que aspiramos a construir. Asimismo, se presenta el concepto de educación inclusiva como una visión educativa que busca garantizar...
FABIANY DE CÁSSIA TAVARES SILVA
El artículo presenta una investigación concluida, inserida en el campo da la historia de la educación, focalizando la reflexión sobre las condiciones teóricas y metodológicas que se utilizan en los procedimientos del estudio comparado. El objetivo de la investigación fue el de escribir una historia curricular particular, mediante el estudio de documentos curriculares. La metodología utilizada se orienta por la explicitación de los fundamentos teóricos, de las áreas de comparación y de l...
Creación de materiales multimedia para las siguientes asignaturas: Fundamentos biológicos de la conducta, Neuropsicología, Master universitario en Neuropsicología, Doctorado en Neuropsicología, Master interuniversitario en Psicogerontología; con de depósito en el CRAI del Campus Ciudad Jardín
Perea Bartolomé, María Victoria
Con la ayuda recibida y con los materiales y recursos existentes en el CRAI-CAMPUS CIUDAD JARDÍN hemos realizado todas las actividades propuestas en el proyecto. El resultado ha sido la creación de la asignatura de Fundamentos Biológicos de la Conducta, la asignatura de Neuropsicología, asignaturas del Programa Master Oficial en Neuropsicología y asignaturas del Programa de Doctorado en Neuropsicología en Studium.
Zhonglai Luo; Tingting Duan; Shuai Yuan; Shi Chen; Xiufeng Bai; Dianxiang Zhang
Reproductive isolation defines the biological species concept and plays a key role in the formation and maintenance of species. The relative contributions of different isolating stages has been suggested to be closely associated with phylogenetic relatedness. Few studies have focused on the relative contributions of pre- versus post-zygotic mechanisms, and even fewer have been conducted under strict phylogenetic frameworks. Pre-and post-zygotic reproductive isolation stages have been investigated in the sister species Mussaenda kwangtungensis and M. pubescens var. alba. The two species have partly overlapping distribu-tion ranges and flowering times, while the principal pollinators differed strikingly for them, demonstrating strong pre-zygotic isolations. Natural hybrids were detected by simple sequence repeat markers and their maternal parents were identified based on chloroplast gene sequen-ces. Five out of 81 individuals were suggested to be hybrids that fall into the categories F2, BC1, and BC2 by the NewHybrids analysis. Interspecific crossings resulted in significantly reduced fruit set and seed germination rates. Phylogenetic analysis revealed short Kimura-2-parameter distance between M. kwangtungensis and M. pubescens var. alba. These findings strongly supported the hypothesis that for species with a closer phylogenetic relationship, pre-zygotic isolation plays an important part in limiting gene exchange in sympatric areas.