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Μαθηματικά: Επίπεδο διδασκαλίας Α: Βιβλίο μαθητή
No full textΤο πρώτο βιβλίο απευθύνεται σε παιδιά σχολικού επιπέδου Νηπιαγωγείου καθώς και Α΄ και Β΄ δημοτικού. Οι ενότητές του περιέχουν μαθηματικές δραστηριότητες κυρίως αριθμητικής, γεωμετρίας και επίλυσης προβλημάτων οι οποίες υποβοηθούν και συμπληρώνουν έννοιες που τα παιδιά έχουν πραγματευτεί στο πλαίσιο του Αναλυτικού Προγράμματο
Υπόμνημα περί του Βασιλικού Ναυτικού. / Συνταχθέν υπό των Υποπλοιάρχων Α. Α. Μιαούλη, Γ. Ζωχιού, Δ. Γ. Σαχτούρη και Ν. Α. Μιαούλη.
No full textΟι Ελληνικοί Κώδικες : Μετά των τροποποιούντων αυτούς νεωτέρων Νόμων και Β. Διαταγμάτων, οις προσετέθησαν το Πολιτικόν Σύνταγμα της Ελλάδος, ... / επεξεργασθέντες εξ υπαρχής Υπό Γ. Α. Ράλλη ...
No full textEffect of α(+)-Thalassaemia on Episodes of Fever due to Malaria and Other Causes: A Community-Based Cohort Study in Tanzania.
Get PDFIt is controversial to what degree α(+)-thalassaemia protects against episodes of uncomplicated malaria and febrile disease due to infections other than Plasmodium. In Tanzania, in children aged 6-60 months and height-for-age z-score < -1.5 SD (n = 612), rates of fevers due to malaria and other causes were compared between those with heterozygous or homozygotes α(+)-thalassaemia and those with a normal genotype, using Cox regression models that accounted for multiple events per child. The overall incidence of malaria was 3.0/child-year (1, 572/526 child-years); no differences were found in malaria rates between genotypes (hazard ratios, 95% CI: 0.93, 0.82-1.06 and 0.91, 0.73-1.14 for heterozygotes and homozygotes respectively, adjusted for baseline factors that were predictive for outcome). However, this association strongly depended on age: among children aged 6-17 months, those with α(+)-thalassaemia experienced episodes more frequently than those with a normal genotype (1.30, 1.02-1.65 and 1.15, 0.80-1.65 for heterozygotes and homozygotes respectively), whereas among their peers aged 18-60 months, α(+)-thalassaemia protected against malaria (0.80, 0.68-0.95 and 0.78, 0.60-1.03; p-value for interaction 0.001 and 0.10 for hetero- and homozygotes respectively). No effect was observed on non-malarial febrile episodes. In this population, the association between α(+)-thalassaemia and malaria depends on age. Our data suggest that protection by α(+)-thalassaemia is conferred by more efficient acquisition of malaria-specific immunity
Οι Ελληνικοί Κώδικες : Μετά των τροποποιούντων αυτούς νεωτέρων Νόμων και Β. Διαταγμάτων, οις προσετέθησαν το Πολιτικόν Σύνταγμα της Ελλάδος, ... / επεξεργασθέντες εξ υπαρχής Υπό Γ. Α. Ράλλη ...
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High Molecular Weight Glucan of the Culinary Medicinal Mushroom Agaricus bisporus is an α-Glucan that Forms Complexes with Low Molecular Weight Galactan
No full textAn a-glucan was isolated from the culinary medicinal mushroom A. bisporus by hot water extraction, ethanol precipitation and DEAE-cellulose chromatography. The resulting material showed a single HMW peak excluded from a Sephadex G50 column that could completely be degraded by α-amylase treatment. After heating in 1% SDS a small additional peak of low MW eluted from the G50 column. The monosaccharide composition of the main peak was evaluated by HPLC, and was found to consist of a majority of glucose (97.6%), and a minor proportion of galactose (2.4%). Methylation analysis and degradation by a-amylase indicated the presence of an a-glucan with a main chain consisting of (1®4)-linked units, substituted at O-6 by α-D-glucopyranose single-units in the relation 1:8. Mono- (13C-, 1H-NMR) and bidimensional [1H (obs.),13C-HSQC] spectroscopy analysis confirmed the a-configuration of the Glcp residues by low frequency resonances of C-1 at d 100.6, 100.2, and 98.8 ppm and H-1 high field ones at d 5.06, 5.11, and 4.74 ppm. The DEPT-13C-NMR allowed assigning the non-substituted and O-substituted –CH2 signals at d 60.3/60.8 and 66.2 ppm, respectively. Other assignments were attributed to C-2, C-3, C-4, C-5 and C-6 of the non-reducing ends at d 71.8; 72.8; 70.0; 71.3 and 60.3/60.8 ppm, respectively. The minor proportion of galactose that was demonstrated was probably derived from a complex between the a-glucan and a low molecular weight galactan
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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