Three-dimensional cultures of normal human osteoblasts: proliferation and differentiation potential in vitro and upon ectopic implantation in nude mice.

This paper is novel andreports on the in vitro establishment of 3-D cultures of human osteoblasts. These were evaluated for protein markers of bone cells. Sequentially alkaline phosphatase, calcium incorporation for matrix mineralisation and then finally osteocalcin expression were detected in cultures. The extracellular matrix was composed of type 1 collagen and as it mineralised, needle shaped crystals were often associated with matrix vesicles initiating mineralisation. In vivo implantation in nude mice showed progression of mineralisation from the inner region outward with peripheral cells in a non-mineralised matrix. Host vessels invaded the implanted cell area. The research has relevance to musculoskeletal tissue engineering.

The Paradox of art criticism: Jacques Derrida in front of the Greco, Henri Michaux before René Magritte

This paper analyzes the rethinking of art criticism during French post-structuralism and deconstruction in the second half of the XX century. From Michel Foucault to Gilles Deleuze, from Jacques Derrida to Jean-Claude Lebensztejn, the article develops several conceptions and functions of art criticism by means of paradox, paying special attention to Henri Michaux’s essay on René Magritte En rêvant à partir de peintures énigmatiques [Dreams like Enigmatic Paintings].

Art, biology and technology. Interdisciplinary relations in the science lab

Bio art, understood as the convergence of the relations between art, biology and technology, constitutes a useful case study to discuss the meaning of interdisciplinarity in the artistic field. This paper explores different discourses around interdisciplinarity in order to challenge certain generic approaches for their ineffectiveness when assessing artistic practices. It is proposed that the analysis of interdisciplinarity must address the singular connections produced in the artistic practice itself, considering the impossibility of reducing the complexity of interdisciplinary dialogues into generic considerations. Taking bioart as a case study, different kinds of relationships between the artist and the lab are identified and analyzed, ranging from the use of the lab as a true atelier and as a resource for materials and techniques, to the rejection of the lab by proposing amateurism as an alternative. estrategias amateur, pasando por su utilización como fuente de técnicas y materiales.

Metaphor and Maltese Art: Explorations in the Temple Period

Temple Period Malta in the 3rd millennium BC saw the production of a range of figurative and decorative art and architecture that implies a richly populated spiritual and cognitive world associated with ritual practice in life and death. The paper explores the potential to categorize the figurative art into distinct groups, and how these various images might represent aspects of the cosmology and social concerns of a prehistoric island society.