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The heads of the Catechetical School in Alexandria

This is the second of two articles, the first article being concerned with general questions regarding the Didaskaleion in Alexandria. The account of the founding of the Didaskaleion in Alexandria is based on information provided by Eusebius of Caesarea (263-339), a Roman historian, exegete and Christian polemicist, in his well-known Historia Ecclesiastica, which he wrote during...

Aplicação da termogravimetria (TG) no controle de qualidade da milona (Cissampelos sympodialis Eichl.) Menispermaceae

This work proposes the application of the thermogravimetry (TG) in the control of quality of Cissampelos sympodialis, known popularly as 'milona'. After the extraction process, the alkaloids became the majority substances and the extracts showed the kinetic behavior of the bisbenzylisoquinoline alkaloids. This seems to be an important and useful parameter for the quality control...

Ontluikende kerke - 'n nuwe missionêre beweging. Deel 2: Kernpraktyke van Ontluikende Missionêre Kerke

This article describes and elaborates on the nine core practices of emerging missional churches, identified in the research of Gibbs and Bolger which presents these practices as innovative answers that can assist mainline churches to discover new possibilities and to change cultural as well as organisational aspects. The article represents a theological reflection on the core...

Neumonía tuberculosa. Presentación de caso

Introduction: the TB pneumonia is an infrequent serious manifestation of the lung TB, whose clinical features lead to the erroneous diagnosis of bacterial pneumonia, particularly to the diagnosis pneumococcal pneumonia. Objective: Our objective was to update an infrequent entity through the presentation of a case with confirmed diagnosis. Presentation of the case: we are...

Mortalidade da pescada-foguete, Macrodon ancylodon

The instantaneous mortality coefficient (F + M) of the commercial weakfish, Macrodon ancylodon (Bloch, 1801) caught by trawls along southern Brazilian coast (from latitude 28ºS to 34ºS), was computed by means of the annual catch variation (in number) by age per fishing effort from March 1961 to December 1964. The instantaneous mortality coefficient mean values for female and male...

PROGRAMACIÓN MULTIOBJETIVO DE MÁQUINAS MOLDURERAS A TRAVÉS DE ALGORITMOS MEMÉTICOS

This work presents a multiobjective optimization algorithm based on a variant of the evolutionary programming field called memetic algorithms (MA). This algorithm was proposed by the authors, combines genetic evolution with local search, in the same way as traditional MA, but with the use of independent populations for each objective, as well as a mechanism to find compromise...

Metal particulado en el estuario del Río Ulla: Estado de la contaminación y sus fuentes (Ría de Arosa, NO de la Peninsula Ibérica)

The metal content measured in surface sediment and suspended particulate matter (SPM) samples collected from the Ulla River estuary (NW Spain) showed evidence of contamination by Cr, Cu, Mn, Ni, and Zn, but not by Cd, Fe, and Pb. The metals are trapped mainly in the sediment of two estuary zones, just before they reach the Arosa Ria. The first zone is located at the estuary head...

A equação humana no cuidado à doença: o doente, seu cuidador e as organizações de saúde

The union of the weak may be the strategy to face, on the one hand, the fear and hopelessness of the ill who daily seek for the care they need.lt may on the other hand be the form of facing the amazement and the shame with which many of the care providers recognize their debilities to make prevail a minimum of social solidarity in their health services so that the needs of both...

Soil reaction and absorption of silicon by rice

The solubility and availability of silicon can be influenced by soil reaction. A pot experiment with a clayey textured Rhodic Acrustox was conducted under greenhouse conditions to evaluate the effect of soil reaction on silicon availability to rice plants. The experiment was set up in a completely randomized design, using a factorial scheme (4 x 4) with four materials (calcitic...

Recent Progress in the Fabrication, Properties, and Devices of Heterostructures Based on 2D Materials

With a large number of researches being conducted on two-dimensional (2D) materials, their unique properties in optics, electrics, mechanics, and magnetics have attracted increasing attention. Accordingly, the idea of combining distinct functional 2D materials into heterostructures naturally emerged that provides unprecedented platforms for exploring new physics that are not...

Seeding uniformity for vacuum precision seeders

The performance of three vacuum precision seeders was investigated in a field study. Seeding uniformity was determined in three different within-row distances: 14, 18 and 21 cm. The seeders were operated at 1.8, 3.6, 5.4 and 7.2 km h-1. Successive seed spacing along of 3 m of row was measured in three replications on each row. For evaluating the seeding uniformity of seeders...

Seleção de espigas e debulha das sementes de milho (Zea mays L.): I- efeitos sobre a qualidade física e infestação por insetos

This work had the objective to verify the effects of ear selection and of corn seed thrashing, on their physical quality and insect infestation. Seeds from four fields of seed production, grown in the 1985/86 cropping season were sampled and thrashed (by hand and and mechanically). The results obtained, showed that the seeds derived from the mechanical thrashing at the field...

Competitivity of the common-bean plant relative to the weed alexandergrass [Brachiaria plantaginea (link) hitch.]

Methodologies of competitive interaction quantification between weeds and crops are not widely elucidated and compared in the literature. The competitive ability of common-bean (Phaseolus vulgaris) relative to alexandergrass (Brachiaria plantaginea) was assessed and two approaches of replacement series experiment analysis were compared. The response of the species to the presence...

Ethylene and lettuce seed germination

Ethylene can stimulate seed germination and overcome dormancy in many species. For instance, the inhibitory effect of high temperature on lettuce seed germination can be overcome by exogenous ethylene. Involvement of ethylene in seed germination is a widely accepted fact, but the mechanistic details are poorly understood. A critical factor in ethylene studies is the response of...

Response of the grass-cutting ant Atta capiguara Gonçalves, 1944 (Hymenoptera: Formicidae) to sugars and artificial sweeteners

Using of toxic baits made of dehydrated citric pulp to control grass-cutting ants can lead to unsatisfactory results because of the low attractiveness of the substrate to worker ants. This work aimed to identify attractive substances, with potential for incorporation in a matrix of granulated baits for grass-cutting ants, among several kinds of sugars and substances used in...