1000 resultados para Aristarchus, of Samos.
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The paper studies the mobilization occurred in June 2013 in Brazil, initially under the banner of the Movement Free Pass, but without the existence of a lead, but multiple voices that alternate in search of social and economic change. The object of study is the communication made through social networks and their realization, or realization, the streets of major cities. The rallies demonstrate the power of communications media and a new phenomenon of talk, the use of social networks, now as uniting factor and not just a showcase of everyday life. The internet has become a new means of communication easy and free access, in addition to its fast dissipation data. Thus, the youth was used such technology to an uprising in the pursuit of social improvement of the cities where marches happened. Such a move still without an academic and social needs to be discussed so that, in addition to understood, can expand contributions to society, helping it in its claims. Was chosen as the site for the #causabrasil study and understanding of issues in which the public expresses dissatisfaction. The site performs an analysis with the combination of hastags a list of pre-registered and a list of terms used by different users of Facebook, Twitter, Instagram, Youtube and Google, through monitoring tool Seekr, and an infographic presents the main political demands of the population.
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The paper studies the mobilization occurred in June 2013 in Brazil, initially under the banner of the Movement Free Pass, but without the existence of a lead, but multiple voices that alternate in search of social and economic change. The object of study is the communication made through social networks and their realization, or realization, the streets of major cities. The rallies demonstrate the power of communications media and a new phenomenon of talk, the use of social networks, now as uniting factor and not just a showcase of everyday life. The internet has become a new means of communication easy and free access, in addition to its fast dissipation data. Thus, the youth was used such technology to an uprising in the pursuit of social improvement of the cities where marches happened. Such a move still without an academic and social needs to be discussed so that, in addition to understood, can expand contributions to society, helping it in its claims. Was chosen as the site for the #causabrasil study and understanding of issues in which the public expresses dissatisfaction. The site performs an analysis with the combination of hastags a list of pre-registered and a list of terms used by different users of Facebook, Twitter, Instagram, Youtube and Google, through monitoring tool Seekr, and an infographic presents the main political demands of the population.
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El artículo está destinado a subrayar el proyecto ARISTARCUS, un conjunto de herramientas de trabajo para la investigación y la enseñanza en temas del área de mundo antiguo Griego y Latino y está disponible en el sitio web www.aristarchus.unige.it. Ha sido llevado a cabo por el grupo de investigación del Dipartimento di Archeologia e Filologia Classica (DARFICLET) de la Universidad de Génova, dirigido por el Profesor Franco Montanari. El sitio web incluye cinco ítems: 1) LGGA - Léxico de los Gramáticos Griegos Antiguos; 2) PAWAG - Palabras escasamente atestadas en Griego Antiguo; 3) CPhCl - Catalogus Philologorum Classicorum; 4) CIAPh - Centro Italiano de l'Année Philologique; 5) Mediaclassica, un conjunto de herramientas para la enseñanza de Griego y Latín.
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El artículo está destinado a subrayar el proyecto ARISTARCUS, un conjunto de herramientas de trabajo para la investigación y la enseñanza en temas del área de mundo antiguo Griego y Latino y está disponible en el sitio web www.aristarchus.unige.it. Ha sido llevado a cabo por el grupo de investigación del Dipartimento di Archeologia e Filologia Classica (DARFICLET) de la Universidad de Génova, dirigido por el Profesor Franco Montanari. El sitio web incluye cinco ítems: 1) LGGA - Léxico de los Gramáticos Griegos Antiguos; 2) PAWAG - Palabras escasamente atestadas en Griego Antiguo; 3) CPhCl - Catalogus Philologorum Classicorum; 4) CIAPh - Centro Italiano de l'Année Philologique; 5) Mediaclassica, un conjunto de herramientas para la enseñanza de Griego y Latín.
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El artículo está destinado a subrayar el proyecto ARISTARCUS, un conjunto de herramientas de trabajo para la investigación y la enseñanza en temas del área de mundo antiguo Griego y Latino y está disponible en el sitio web www.aristarchus.unige.it. Ha sido llevado a cabo por el grupo de investigación del Dipartimento di Archeologia e Filologia Classica (DARFICLET) de la Universidad de Génova, dirigido por el Profesor Franco Montanari. El sitio web incluye cinco ítems: 1) LGGA - Léxico de los Gramáticos Griegos Antiguos; 2) PAWAG - Palabras escasamente atestadas en Griego Antiguo; 3) CPhCl - Catalogus Philologorum Classicorum; 4) CIAPh - Centro Italiano de l'Année Philologique; 5) Mediaclassica, un conjunto de herramientas para la enseñanza de Griego y Latín.
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Mode of access: Internet.
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"Apéndices" de p. 293 a 427, texto en latín. Parte del texto a dos col. Anteportada.
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Mode of access: Internet.
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I. From Thales to Euclid.--II. From Aristarchus to Diophantus.
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No more published?
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Characterized for the first time in erythrocytes, phosphatidylinositol phosphate kinases (PIP kinases) belong to a family of enzymes that generate various lipid messengers and participate in several cellular processes, including gene expression regulation. Recently, the PIPKIIα gene was found to be differentially expressed in reticulocytes from two siblings with hemoglobin H disease, suggesting a possible relationship between PIPKIIα and the production of globins. Here, we investigated PIPKIIα gene and protein expression and protein localization in hematopoietic-derived cells during their differentiation, and the effects of PIPKIIα silencing on K562 cells. PIPKIIα silencing resulted in an increase in α and γ globins and a decrease in the proliferation of K562 cells without affecting cell cycle progression and apoptosis. In conclusion, using a cell line model, we showed that PIPKIIα is widely expressed in hematopoietic-derived cells, is localized in their cytoplasm and nucleus, and is upregulated during erythroid differentiation. We also showed that PIPKIIα silencing can induce α and γ globin expression and decrease cell proliferation in K562 cells.
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The cerebellum is an important site for cortical demyelination in multiple sclerosis, but the functional significance of this finding is not fully understood. To evaluate the clinical and cognitive impact of cerebellar grey-matter pathology in multiple sclerosis patients. Forty-two relapsing-remitting multiple sclerosis patients and 30 controls underwent clinical assessment including the Multiple Sclerosis Functional Composite, Expanded Disability Status Scale (EDSS) and cerebellar functional system (FS) score, and cognitive evaluation, including the Paced Auditory Serial Addition Test (PASAT) and the Symbol-Digit Modalities Test (SDMT). Magnetic resonance imaging was performed with a 3T scanner and variables of interest were: brain white-matter and cortical lesion load, cerebellar intracortical and leukocortical lesion volumes, and brain cortical and cerebellar white-matter and grey-matter volumes. After multivariate analysis high burden of cerebellar intracortical lesions was the only predictor for the EDSS (p<0.001), cerebellar FS (p = 0.002), arm function (p = 0.049), and for leg function (p<0.001). Patients with high burden of cerebellar leukocortical lesions had lower PASAT scores (p = 0.013), while patients with greater volumes of cerebellar intracortical lesions had worse SDMT scores (p = 0.015). Cerebellar grey-matter pathology is widely present and contributes to clinical dysfunction in relapsing-remitting multiple sclerosis patients, independently of brain grey-matter damage.
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To detect the presence of male DNA in vaginal samples collected from survivors of sexual violence and stored on filter paper. A pilot study was conducted to evaluate 10 vaginal samples spotted on sterile filter paper: 6 collected at random in April 2009 and 4 in October 2010. Time between sexual assault and sample collection was 4-48hours. After drying at room temperature, the samples were placed in a sterile envelope and stored for 2-3years until processing. DNA extraction was confirmed by polymerase chain reaction for human β-globin, and the presence of prostate-specific antigen (PSA) was quantified. The presence of the Y chromosome was detected using primers for sequences in the TSPY (Y7/Y8 and DYS14) and SRY genes. β-Globin was detected in all 10 samples, while 2 samples were positive for PSA. Half of the samples amplified the Y7/Y8 and DYS14 sequences of the TSPY gene and 30% amplified the SRY gene sequence of the Y chromosome. Four male samples and 1 female sample served as controls. Filter-paper spots stored for periods of up to 3years proved adequate for preserving genetic material from vaginal samples collected following sexual violence.
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The Fourier transform-infrared (FT-IR) signature of dry samples of DNA and DNA-polypeptide complexes, as studied by IR microspectroscopy using a diamond attenuated total reflection (ATR) objective, has revealed important discriminatory characteristics relative to the PO2(-) vibrational stretchings. However, DNA IR marks that provide information on the sample's richness in hydrogen bonds have not been resolved in the spectral profiles obtained with this objective. Here we investigated the performance of an all reflecting objective (ARO) for analysis of the FT-IR signal of hydrogen bonds in DNA samples differing in base richness types (salmon testis vs calf thymus). The results obtained using the ARO indicate prominent band peaks at the spectral region representative of the vibration of nitrogenous base hydrogen bonds and of NH and NH2 groups. The band areas at this spectral region differ in agreement with the DNA base richness type when using the ARO. A peak assigned to adenine was more evident in the AT-rich salmon DNA using either the ARO or the ATR objective. It is concluded that, for the discrimination of DNA IR hydrogen bond vibrations associated with varying base type proportions, the use of an ARO is recommended.