In this paper using the CLIFFORD algebra over R4 and its matrix representation, we construct CLIFFORD scaling functions and CLIFFORD wavelets. Then we compute related mask functions and filters, which arise in many applications such as quantum mechanics.

The Lie derivation of multivector fields along multivector fields has been introduced by Schouten (see [10, 11]), and studdied for example in [5] and [12]. In the present paper we define the Lie derivation of differential forms along multivector fields, and we extend this concept to covariant derivation on tangent BUNDLEs and vector BUNDLEs, and find natural relations between them and other familiar concepts. Also in spinor BUNDLEs, we introduce a covariant derivation along multivector fields and call it the CLIFFORD covariant derivation of that spinor BUNDLE, which is related to its structure and has a natural relation to its Dirac operator.

In this paper we study the structure of CLIFFORD Algebras Clp,q associated with a non degenerate symmetric bilinear form of signature (p, q), where p, q are positive integer. Also we present a description of these algebras as matrix algebras, and then we will discuss the periodicity of these algebras completely. As a consequence, We create the related algebra matrix tables for these algebras, when 0£p£8 and 8£q£13. We also present an isomorphism between Cl0q,p and Cl0p,q.

The paper can be regarded as a review to CLIFFORD Geertz approach to religion and culture. How religious rites and ceremonies as well as certain models can leave their static and lifeless state and, like a certain text, change into a dynamic and retestable subject for researchers? Geertz seeks to show the way ang give an answer to the question. He uses the framework of those socialists like Weber and Durkheim in comparative sociology. Geertz accepts an interpretative approach when studying epistemology, religion, culture of different tribes. In the paper his approach has been analytically reconsidered.

Geometric algebra provides intuitive and easy description of geometric entities (encoded by blades) along with different operations and orthogonal transformations. Grassmann’, s Exterior and Hamilton’, s quaternions lead to the existence of CLIFFORD (Geometric) algebra. CLIFFORD or geometric product has its significant role in whole domain of CLIFFORD algebra, while as contraction (anti outer product or analogous to dot product) is grade reduction operation. The other operations can be derived from the former one. The paper explores elucidation of CLIFFORD algebra and CLIFFORD product with some salient features and applications.

Background: Anterior cruciate ligament (ACL) tear is a common injury in sports. Different techniques for reconstruction of this ligament have been suggested. This paper compares the knee kinematics between "single BUNDLE" and "double BUNDLE" ACL reconstruction with hamstring tendon in a computerized knee model.Methods: A computer-knee modle was constructed. Then "single BUNDLE" and "double BUNDLE" ACL reconstruction was performed. The knee stability and ligament tension were tested in 3 different settings: 1) At 30o knee flexion under isolated posteroanterior load, valgus and rotational torque was applied, 2) In weight-bearing flexion range (from extension to 70o of flexion) an anterior load of 134 Newton was applied, 3) Knee model was loaded by a non-contact pivot farce to produce ACL rupture.Results: The results showed no significant difference between "single BUNDLE" and "double BUNDLE" under isolated loading. The second and third model, however, showed 4 times greater tension on the ligament in "single BUNDLE". The "single BUNDLE" in the second technique of testing (weight bearing) showed at most 7 mm more displacement compared with "double BUNDLE". In the third testing technique "double BUNDLE" was stronger than "single BUNDLE" in valgus torque resistance. The internal rotation stability was also more in "double BUNDLE".Conclusion: Functional stability of knee model of ACL reconstruction with a "double BUNDLE" graft is superior to a "single BUNDLE" graft.

Unquestionably, CLIFFORD Geertz was one of the most important and influential contemporary Anthropologists. Trying to overcome the conflict between interpretation and explanation, he improved the intellectual position of anthropology amongst the humanities and social sciences. With this in mind, his position among Anthropologists can be compared with Max Weber as a Sociologist. Knowing Weber through the American Sociologist Parsons, he tried to apply an interpretative reading of culture and cultural phenomena. His attempts to clarify the relationship between «Society» and «Culture», is one of his valuable legacies. Pointing to culture as an independent entity and being concerned about its priority over society, he improved on an approach called Culturalist – Symbolist by some scholars. An efficient tool at his hand was the concept of ritual. Despite his popularity in other countries, it seems that Iranian students are not sufficiently informed about him. This article is a humble attempt to introduce some of his views and to show in which sense he should be seen as a promoter of an interpretative approach. In doing so, this article reviews his main ideas about culture and religion and through one of his popular experimental works, Cockfight, tries to show how he used a ritual as a text to interpret a culture.