title: Series solutions for the Dirac equation in Kerr–Newman space-time

authors: Kalnins, Ernie G.

subjects: Mathematics

abstract: The Dirac equation is solved for an electron in a Kerr–Newman geometry using an adaptation of the procedure of Chandrasekhar. The corresponding eigenfunctions obtained can be represented as series of Jacobi polynomials. The spectrum of eigenvalues can be calculated using continued fraction techniques. Representations for the eigenvalues and eigenfunctions are obtained for various ranges of the parameters appearing in the Kerr–Newman metric. Some comments concerning the bag model of nucleons are made.

text: Series solutions for the Dirac equation in Kerr–Newman space-time The Dirac equation is solved for an electron in a Kerr–Newman geometry using an adaptation of the procedure of Chandrasekhar. The corresponding eigenfunctions obtained can be represented as series of Jacobi polynomials. The spectrum of eigenvalues can be calculated using continued fraction techniques. Representations for the eigenvalues and eigenfunctions are obtained for various ranges of the parameters appearing in the Kerr–Newman metric. Some comments concerning the bag model of nucleons are made.

year: 1992-01

title: (The Futility of) Trying to Predict Carcinogenicity of Chemical Compounds

authors: Pfahringer, Bernhard

subjects: computer science

abstract: This paper describes my submission to one of the sub-problems formulated for the Predictive Toxicology Challenge 2001. The challenge is to predict the carcinogenicity of chemicals based on structural information only. I have only tackled such predictions for bioassays involving male rats. As we currently do not know the true predictions for the test-set, all we can say is that one of the models supplied by us seems to be optimal over some subrange of the ROC spectrum. The successful model uses a voting approach based on most of the sets of structural features made available by various other contestants as well as the organizers in an earlier phase of the Challenge. The WEKA Machine Learning workbench served as the core learning utility. Based on a preliminary examination of our submission we conclude that reliable prediction of carcinogenicity is still a far away goal.

text: (The Futility of) Trying to Predict Carcinogenicity of Chemical Compounds This paper describes my submission to one of the sub-problems formulated for the Predictive Toxicology Challenge 2001. The challenge is to predict the carcinogenicity of chemicals based on structural information only. I have only tackled such predictions for bioassays involving male rats. As we currently do not know the true predictions for the test-set, all we can say is that one of the models supplied by us seems to be optimal over some subrange of the ROC spectrum. The successful model uses a voting approach based on most of the sets of structural features made available by various other contestants as well as the organizers in an earlier phase of the Challenge. The WEKA Machine Learning workbench served as the core learning utility. Based on a preliminary examination of our submission we conclude that reliable prediction of carcinogenicity is still a far away goal.

year: 2001

title: Moehewa: Death, lifestyle & sexuality in the Maori World

authors: Nikora, Linda Waimarie

abstract: Customary death ritual and traditional practice have continued for the Māori (indigenous) people of Aotearoa/New Zealand, despite intensive missionary incursion and the colonial process. This paper critically considers what occurs when the deceased is different, in a most significant way. What happens when you die – and you are Māori and any one, or a combination, of the following: a queen, takatāpui,[1] butch, like that, gay, she-male, lesbian, transsexual, a dyke, intersex, tomboy, kamp, drag, homosexual, or just queer? Who remembers you and how? Same sex relationships today are still discouraged or denied, although traditional chant and Māori visual narratives record such liaisons and erotic experience as joyously normal (Te Awekotuku, 2005). And yet some people choose to remain in the closet. In this paper, we present three case studies, and invite the reader to reflect with us on mourning rituals or tangi – Māori death rites, in a same sex relationship, or for a gay, lesbian or transsexual family member. In this way, we open up a space for dialogue about such matters in our intimate and kin communities.

text: Moehewa: Death, lifestyle & sexuality in the Maori World Customary death ritual and traditional practice have continued for the Māori (indigenous) people of Aotearoa/New Zealand, despite intensive missionary incursion and the colonial process. This paper critically considers what occurs when the deceased is different, in a most significant way. What happens when you die – and you are Māori and any one, or a combination, of the following: a queen, takatāpui,[1] butch, like that, gay, she-male, lesbian, transsexual, a dyke, intersex, tomboy, kamp, drag, homosexual, or just queer? Who remembers you and how? Same sex relationships today are still discouraged or denied, although traditional chant and Māori visual narratives record such liaisons and erotic experience as joyously normal (Te Awekotuku, 2005). And yet some people choose to remain in the closet. In this paper, we present three case studies, and invite the reader to reflect with us on mourning rituals or tangi – Māori death rites, in a same sex relationship, or for a gay, lesbian or transsexual family member. In this way, we open up a space for dialogue about such matters in our intimate and kin communities.

year: 2016