Uomo universale : the imaginary relation between body and mathematic(s) in architecture

What is the role of the human figure in the drawing of the uomo universale? Interlocked with the “master architect” as a constituent component of the canonical bodies of architecture, is the idea of the uomo universale, the universal man, an idea that was especially compelling to Renaissance masters. In contemporary social theory the uomo universale is read for its generic sense as the “universal subject”. Critical to this is a dialectical sense in which “man” confronts its non-neutral association with a gender specificity, either man or woman. This paper looks at the drawing and image of the uomo universale and explores the distinction between presence and representation, between the visibility of the image, its content and detail and the symbolic role of the image as constitutive of a canon of architecture. Though we are not meant to “see” the human figure as corporeal presence and rather focus our attention on the image as a geometric schema, my argument is that only through the figure is the uomo universale engendered as an image of the highest form of nature.

“Let’s Review.” A Look at the Effects of Re-teaching Basic Mathematic Skills

In this action research study of my classroom of 8th grade mathematics, I investigated the effect of reviewing basic fraction and decimal skills on student achievement and student readiness for freshman Algebra. I also investigated the effect on the quality of student work, with regards to legibility by having students grade each other’s work anonymously. I discovered that students need basic skill review with fractions and decimals, and by the end of the research their scores improved. However, their handwriting had not. At the end of the research, a majority of the students felt the review was important, and they were ready to take math next year in high school. As a result of this research, I plan to implement weekly fraction and decimal review assignments in all middle school grades: 6th, 7th, and 8th. In addition, fraction and decimals must be incorporated into daily assignments, where appropriate, in order to encourage students to retain these skills.

Andreae Argoli ... Pandosion sphaericum : in quo singula in elementaribus regionibus, atque aetherea, mathematicè pertractantur.

Mode of access: Internet.

Floriani Dalham ... Institutiones physicæ : in usum nobilissimorum suorum auditorum adornatæ, quibus ceu subsidium præmittuntur institutiones mathematicæ.

Mode of access: Internet.

Christiani Hugenii aliorumque seculi XVII virorum celebrium exercitationes mathematicæ et philosophicæ /

fasc. I., continens Chr. Hugenii, Leibnitii et Hospitalii epistolas mutuas.--fasc. II., continens additaments ad fasc. I., inter quae vausmeslii, Duilierii et Hub. Huighenii epistolas.

Rating for sustainable subdivision neighbourhood design (RSSND) : case of Bangkok metropolitan region (BMR), Thailand an eco-efficiency modelling approach

Bangkok Metropolitan Region (BMR) is the centre for various major activities in Thailand including political, industry, agriculture, and commerce. Consequently, the BMR is the highest and most densely populated area in Thailand. Thus, the demand for houses in the BMR is also the largest, especially in subdivision developments. For these reasons, the subdivision development in the BMR has increased substantially in the past 20 years and generated large numbers of subdivision developments (AREA, 2009; Kridakorn Na Ayutthaya & Tochaiwat, 2010). However, this dramatic growth of subdivision development has caused several problems including unsustainable development, especially for subdivision neighbourhoods, in the BMR. There have been rating tools that encourage the sustainability of neighbourhood design in subdivision development, but they still have practical problems. Such rating tools do not cover the scale of the development entirely; and they concentrate more on the social and environmental conservation aspects, which have not been totally accepted by the developers (Boonprakub, 2011; Tongcumpou & Harvey, 1994). These factors strongly confirm the need for an appropriate rating tool for sustainable subdivision neighbourhood design in the BMR. To improve level of acceptance from all stakeholders in subdivision developments industry, the new rating tool should be developed based on an approach that unites the social, environmental, and economic approaches, such as eco-efficiency principle. Eco-efficiency is the sustainability indicator introduced by the World Business Council for Sustainable Development (WBCSD) since 1992. The eco-efficiency is defined as the ratio of the product or service value according to its environmental impact (Lehni & Pepper, 2000; Sorvari et al., 2009). Eco-efficiency indicator is concerned to the business, while simultaneously, is concerned with to social and the environment impact. This study aims to develop a new rating tool named "Rating for sustainable subdivision neighbourhood design (RSSND)". The RSSND methodology is developed by a combination of literature reviews, field surveys, the eco-efficiency model development, trial-and-error technique, and the tool validation process. All required data has been collected by the field surveys from July to November 2010. The ecoefficiency model is a combination of three different mathematical models; the neighbourhood property price (NPP) model, the neighbourhood development cost (NDC) model, and the neighbourhood occupancy cost (NOC) model which are attributable to the neighbourhood subdivision design. The NPP model is formulated by hedonic price model approach, while the NDC model and NOC model are formulated by the multiple regression analysis approach. The trial-and-error technique is adopted for simplifying the complex mathematic eco-efficiency model to a user-friendly rating tool format. Credibility of the RSSND has been validated by using both rated and non-rated of eight subdivisions. It is expected to meet the requirements of all stakeholders which support the social activities of the residents, maintain the environmental condition of the development and surrounding areas, and meet the economic requirements of the developers.

疏松砂岩油藏油井出砂量预测模型及应用

在研究油井出砂机理的基础上,根据液-固多相渗流条件,应用库仑-摩尔破坏准则和达西公式,导出了关于疏松砂岩油藏不同产液量下油井出砂量预测的数学模型.以盘二油田为例,进行了出砂预测,与实测含砂比相比,平均误差小于0.0052%.实例应用表明所给的数学模型是可行的.

Quantificação da área ocupada pela guta-percha e pelo Resilon em canais achatados após termoplastificação

O presente trabalho teve por objetivo quantificar, comparativamente, a área de preenchimento de dois materiais obturadores sólidos, cones de guta-percha (GP) e cones de Resilon (R), no terço apical de incisivos inferiores humanos, ex vivo, obturados pela técnica da onda contínua de condensação. Os espécimes foram submetidos a um protocolo, desde a cirurgia de acesso até o final do preparo químico-mecânico e divididos aleatoriamente em dois grupos, de 21 dentes cada, de acordo com o material utilizado. Não foi utilizado cimento endodôntico em nenhuma das amostras. Após a obturação, as amostras foram seccionadas transversalmente em dois níveis, a 3 e a 5mm do ápice, e subdivididas em grupos de acordo com a altura de corte e do material obturador, sendo estabelecido: GP3 (guta-percha com corte a 3mm), GP5 (guta-percha com corte a 5mm), R3 (Resilon com corte a 3mm) e R5 (Resilon com corte a 5mm). Posteriormente, as amostras foram submetidas a um processo de lixamento e polimento e examinadas em microscópio óptico por reflexão com aumento de 50x a 100x. Para a análise e processamento digital das imagens, foi utilizado o sistema de imagens Axio Vision 4.6 para Windows, sendo obtidas as medidas para cada área observada em micrômetros (μm); uma da área da cavidade, e outra da área de material obturador. Foi aferido o grau de circularidade de cada amostra, por uma fórmula matemática utilizada automaticamente pelo programa, onde 1 (um) é considerado o círculo perfeito e, quanto mais achatado o canal, mais tendente a 0 (zero) nesta escala. Obteve-se a área do canal, a circularidade de 0 a 1, a área preenchida pelo material obturador e, a porcentagem da área de preenchimento do material obturador em relação à área do canal. Foi realizado o cruzamento dos grupos dois a dois pelo teste t de Student, sendo verificada diferença estatisticamente significante entre os grupos GP3 e R3, tendo o grupo R3 apresentado maior porcentagem de área do canal radicular preenchida pelo material obturador em suas amostras (p<0,05). Na relação da circularidade com a quantidade de preenchimento, com o teste de Correlação de Pearson, não foi observada forte correlação entre a forma final do canal (relação de circularidade) e a quantidade de preenchimento do canal radicular pelos materiais obturadores testados. Conclui-se que houve grande variação de preenchimento mínimo e máximo em todos os grupos testados e o Resilon apresentou maior porcentagem de preenchimento de área do canal radicular em suas amostras.

Phase unwrapping algorithms, respectively, based on path-following and discrete cosine transform

This paper describes a path-following phase unwrapping algorithm and a phase unwrapping algorithm based on discrete cosine transform (DCT) which accelerates the Computation and suppresses the propagation of noise. Through analysis of fringe pattern with serious noises simulated in mathematic model, we make a contrast between path-following algorithm and DCT algorithm. The advantages and disadvantages or analytical fringe pattern are also given through comparison of two algorithms. Three-dimensional experimental results have been given to prove the validity of these algorithms. Despite DCT phase unwrapping technique robustness and speed in some cases, it cannot be unwrapping inconsistencies phase. The path-following algorithm can be used in automation analysis of fringe patterns with little influence of noise. (c) 2007 Elsevier GmbH. All rights reserved.

脉冲激光晶化非晶硅薄膜的有限差分模拟

根据热传导原理，建立了脉冲激光晶化非晶硅薄膜的理论模型。运用有限差分方法研究了不同激光波长、能量密度等因素对薄膜温度变化及相变过程的影响。计算了不同波长激光器对厚度500nm非晶硅晶化的阈值能量密度。结果发现，准分子晶化的阈值能量密度最低，但是在同样的能量密度下，熔融深度却不及使用更长波长的激光器。计算并分析了升高衬底温度对结晶速度和晶粒尺寸的影响，模拟结果较好地验证了实验结论和规律。

Piraguak garraiatzeko sistemaren diseinua.

[EU]Ur bizietako piraguak edonolako ingurune basatietan garraiatzeko sistema baten diseinua garatuko du txosten honek. Horretarako dagoeneko existitzen diren modeloei erreparatuko zaie. Sistemak bete behar dituen ezaugarriak erabaki ondoren, diseinuari ekingo zaio. Hasierako ideietatik abiatuz amaierako diseinura iritsi arte fintze etapa ezberdinak burutuko dira. Haietariko azkenean, sortutako prototipoa aztertuko da azken hobekuntza batzuen beharra ebaluatzeko. Guzti hau, sistemak huts egingo ez duela bermatzen duten kalkuluetan oinarrituz egingo da. Azken diseinua sortzeko beharrezko neurriak zehaztuko dira.

A interpretação filosófica da mecânica quântica de Werner Heisenberg: ontologia matemática e a crise nos fundamentos da lógica clássica

Qual a Filosofia da Natureza que podemos inferir da Física Contemporânea? Para Werner Karl Heisenberg, prêmio Nobel de Física de 1932, a ontologia da Ciência Moderna, estruturada no materialismo, no mecanicismo e no determinismo já não pode servir de fundamento para a nova Física. Esta requer uma nova base ontológica, onde o antirrealismo, seguido de um formalismo puro, aparece como o princípio basilar de uma nova Filosofia Natural. Este trabalho visa investigar o pensamento filosófico, a ontologia antirrealista, formalista, a abordagem da tradição filosófica e da história da ciência de Werner Heisenberg e sua contribuição para a interpretação da mecânica quântica.

Ikasleen jokaera problema matematiko ez estadarren aurrean

[eus] Ikerketa honen helburu nagusia Euskal Herriko bi ikastetxe ezberdinetako Lehen Hezkuntzako umeek problema matematiko ez estandarren aurrean ze nolako erantzun mota ematen dituzten aztertzea da. Horretarako, Laura Jiménezek eta Lieven Verschaffelek egindako lanean oinarrituz, umeei 6 problema (4 ez estandarrak eta 2 estandarrak) dituen froga bat egin diet, ondorio hauek lortuz: Ikasleen %3,29k erantzun zuzena eman dio erantzun gabeko problemari, %7,69k erantzun zuzena eman dio erantzun bat baino gehiago duen problemari, %45,05ek erantzun zuzena eman dio erantzuna enuntziatuan duen problemari eta azkenik, ikasleen %46,15ek erantzun zuzena eman dio datuak soberan dituen problemari. Gainera, nahiz eta ikastetxeen metodologia ezberdina izan, ateratako emaitzak antzekoak dira, beraz, metodologiak ez duela eraginik ondorioztatzen da.