Chromosome homologies of the highly rearranged karyotypes of four Akodon species (Rodentia, Cricetidae) resolved by reciprocal chromosome painting: the evolution of the lowest diploid number in rodents

Traditionally comparative cytogenetic studies are based mainly on banding patterns. Nevertheless, when dealing with species with highly rearranged genomes, as in Akodon species, or with other highly divergent species, cytogenetic comparisons of banding patterns prove inadequate. Hence, comparative chromosome painting has become the method of choice for genome comparisons at the cytogenetic level since it allows complete chromosome probes of a species to be hybridized in situ onto chromosomes of other species, detecting homologous genomic regions between them. In the present study, we have explored the highly rearranged complements of the Akodon species using reciprocal chromosome painting through species-specific chromosome probes obtained by chromosome sorting. The results revealed complete homology among the complements of Akodon sp. n. (ASP), 2n = 10; Akodon cursor (ACU), 2n = 15; Akodon montensis (AMO), 2n = 24; and Akodon paranaensis (APA), 2n = 44, and extensive chromosome rearrangements have been detected within the species with high precision. Robertsonian and tandem rearrangements, pericentric inversions and/or centromere repositioning, paracentric inversion, translocations, insertions, and breakpoints, where chromosomal rearrangements, seen to be favorable, were observed. Chromosome painting using the APA set of 21 autosomes plus X and Y revealed eight syntenic segments that are shared with A. montensis, A. cursor, and ASP, and one syntenic segment shared by A. montensis and A. cursor plus five exclusive chromosome associations for A. cursor and six for ASP chromosome X, except for the heterochromatin region of ASP X, and even chromosome Y shared complete homology among the species. These data indicate that all those closely related species have experienced a recent extensive process of autosomal rearrangement in which, except for ASP, there is still complete conservation of sex chromosomes homologies.

Painting Students at Work

Two students learning painting at the New York Trade School are shown here working on decorative designs. Black and white photograph.

Sign Painting Department

In this section of the Sign Painting Department several students are shown working on projects. Decorating the walls are numerous signs, likely painted by students in the department. Black and white photograph.

Sign Painting Students at Work

A classroom of students in the Sign Painting Department at the New York Students is shown working on a variety of signs. Black and white photograph.

Sign Painting Student Working Outside

A Sign Painting student from the New York Trade School is pictured working outside on scaffolding on an AMOCO sign. Black and white photograph.

Section of Sign Painting Department

A section of the Sign Painting Department is shown with students working at tables. A variety of signs can be seen hanging around the room including one for a Holiday Inn, an American Meat Market, and one for a Laundrette. Black and white photograph with slight damage from a tear.

Ethical behaviour: the foundation stone for entrepreneurial activity in arts organisations

Entrepreneurship is being touted as the way forward for arts organisations unsure of the level of continued government funding available and confronted with the need to ever improve. At a time when leadership and governance in cultural organisations have changed in line with cultural expectations, how is their ethical stance assessed? In an age of globalisation, economic restructuring and technological change, museums are sometimes seen to be something of a contradiction. Traditionally seen as temples for the muses, today's museums are being challenged to be ethical for society. As a solution, this paper proposes a Cooperative Model of Cultural Organisational Ethics that attempts to provide a framework by which arts organisations can put in place ethical artefacts that enhance organisational performance, rather than detract from it.

Painting equality : female artists as cultural entrepreneurial marketers

Purpose – There is growing interest by marketers in historical accounts that paint early female artists as entrepreneurial marketers. The purpose of this paper is to challenge the traditional view of entrepreneurship to incorporate a feminist theory of cultural entrepreneurship by considering the role of two female artists.
Design/methodology/approach – Using calls for historical research and new methods of enquiry in marketing, this paper traces early female artists and applies modern entrepreneurial theory to their marketing methods to identify their innovation, adaptability to change and planned marketing approach.
Findings – The paper suggests that entrepreneurial marketing is fused with the artists’ persona resulting in their celebrated status being widely recognised. It contributes an important fresh body of knowledge to the wider entrepreneurship debate by offering a new model of cultural entrepreneurial marketing. The three concepts of innovation, adaptability and marketing approach have not previously been applied to link women artists as entrepreneurs, however, this article argues that there is plenty of evidence to do so.
Research limitations/implications – While these artists are Australian (which could be seen to be a limitation), the art market is indeed international. In this respect, these artists join a longer international history as producers and consumers involved in entrepreneurial organisations from early days.
Originality/value – The artists’ significance falls within the context of emerging modernism, feminism and cultural identity during the 1920s and 1930s in Sydney, Australia. It is combined with and explains the actions and the success of two female artists’ unusual marketing approach. It is of value to readers interested in historical context regarding equality in the visual arts.

Mural Painting

For my freshman Jan Plan at Colby I painted a mural in Runnals Union illustrating a William Blake poem. This effort began a four year painting project which I pursued my sophomore and junior years by finishing the Hall of the Machines in Runnals and by commencing the Paper Wall in Roberts. As a Senior Scholar, I've continued my undertaking by painting eleven more panels. Eight of these are in the Paper Wall and the other three are in the Spa in Miller Library. In my wallpainting up until this year my major interest has been in a strong two-dimentional design created by color juxtaposition. Over these two semesters I've developed a greater concern with the role of color value contrasts in achieving a sense of three-dimensional space. As one views my paintings in chronological order, he can see that gradually colors become less intense, value contrasts more effective, and subject matter becomes based on observation rather than imagination. Please judge my achievement solely on observation of the walls in these three rooms as this paper is only a very brief catalogue of works and the slides are not the best reproductions.

Stories from the stone age

An exploration of the revolutionary period of prehistory that began when humans abandoned the nomadic hunting and gathering existence they had known for millennia to take up a completely new way of life the decisive move to farming and herding the ration of permanent settlements and the discovery of metals setting the stage for the arrival of the worldʼs first civilisation. Stores from the Stone Age ask some intriguing questions. Why did some of our ancestors never become farmers at all? Why do some still continue hunting and gathering despite their contact with farming people and advanced technologies? How and why did our paths become uniquely shaped after emerging as a species from a single genetic family in Africa? Based on extensive research, Stories from the Stone Age takes us on a journey where we get to live alongside our ancestors as they cross between the Old and the New Worlds and into Civilisation. The series utilises detailed re-enactments and short interviews with key archaeological experts.

Deborah Walker : recent painting

Artworks exhibited : Life 2008 - BKK 2008 - The Oracle 2008 - The Revolution 2008 - The Little Dog 2008 - Modern 2008 - The Unifier 2008 - Love 2008 - Mother 2008 - Shiva 2008 - Homage 2008 - The Beauty 2008 - Apollo 2008 - Troy 2008 - Suvarnabhumi (the plane) 2008 - Uncle Basil 2008 - The Daughter 2008 - Gods of War 2008 - The Trojans 2008 - Le Grand pere 2008 - Albert -  I Remember The Beach 2007 - I Remember The Beach II - My Cosmic Lady 2008 - On The Avenue - Space Pervades a Jar Drawings : Cyberman - Minatour - Fishlady - Italy - Kaspar - Madonna - Red Vessel - Ganesa - Cowboys - Sun - Fire Engine - Kneeling Woman - Blowing Bubbles - Bridge and Horse and Cloud - Kasper Hauser - Eyeball and Watering Can - Red Head - Bombay - Blue Eyes and monkey God - Blue Girl With Buddha