title: Flare energy release by flux pile-up magnetic reconnection in a turbulent current sheet

authors: Litvinenko, Yuri E.

subjects: MHD -sun

abstract: The power output of flux pile-up magnetic reconnection is known to be determined by the total hydromagnetic pressure outside the current sheet. The maximum energy-release rate is reached for optimized solutions that balance the maximum dynamic and magnetic pressures. An optimized solution is determined in this paper for a current sheet with anomalous, turbulent electric resistivity. The resulting energy dissipation rate Wa is a strong function of the maximum, saturated magnetic field Bs:  . Numerically, Wa can exceed the power output based on the classical resistivity by more than 2 orders of magnitude for three-dimensional pile-up, leading to solar flarelike energy-release rates of the order of 1028 ergs s−1. It is also shown that the optimization prescription has its physical basis in relating the flux pile-up solutions to the Sweet-Parker reconnection model.

text: Flare energy release by flux pile-up magnetic reconnection in a turbulent current sheet The power output of flux pile-up magnetic reconnection is known to be determined by the total hydromagnetic pressure outside the current sheet. The maximum energy-release rate is reached for optimized solutions that balance the maximum dynamic and magnetic pressures. An optimized solution is determined in this paper for a current sheet with anomalous, turbulent electric resistivity. The resulting energy dissipation rate Wa is a strong function of the maximum, saturated magnetic field Bs:  . Numerically, Wa can exceed the power output based on the classical resistivity by more than 2 orders of magnitude for three-dimensional pile-up, leading to solar flarelike energy-release rates of the order of 1028 ergs s−1. It is also shown that the optimization prescription has its physical basis in relating the flux pile-up solutions to the Sweet-Parker reconnection model.

year: 2000-12

title: Remediating the art of music video [in Malleable boundaries - Creative modes of practice and inquiry in the Academy]

authors: Perrott, Lisa

subjects: exhibition

abstract: The concept of remediation implies that new media attain cultural distinctiveness by paying homage to, and refashioning earlier media (Bolter & Grusin, 1999). Having explored remediation in my book David Bowie and the Art of Music Video (2023), I extended this project by employing creative practice research to test the flexibility of this concept. The affordances of several mediums and materials were explored to remediate three images from music videos previously analysed for my book.

Title of painting #1: Remediating Life On Mars?
When directing the music video for Life on Mars? (1973), photographer Mick Rock used 16mm film to remediate the materiality and two dimensionality of Pop Art and Japanese paintings of the Edo period known as Ukiyo-e. As an extension of this process, I experimented with the fluidity of watercolour paint to remediate these artforms in relation to the affordances of music video and still photography. 

Title of painting #2: Divine Heroes
When directing Heroes (1977), Stanley Dorfman sculpted with light and film to remediate Byzantine paintings and sculpture of the Renaissance period. Paying homage to these mediums, and referencing the Divine Mercy paintings of 1934 and 1944, I experimented with the vibrant hues and light-sculpting properties of watercolour paints and gold leaf. 

Title of painting #3: Ashes to Dada
When directing Ashes to Ashes (1980) an accident with camera settings enabled David Bowie and David Mallet to exploit the affordances of videotape, thus producing a unique remediation of avant-garde films of the 1920s. While using watercolour paint to rework the estranged colours and fuzzy materiality of videotape, my use of the cut-up method pays homage to the aleatory process associated with this video, to the Dada movement, and to the artistic process of Tristan Tzara, William Burroughs and David Bowie.

text: Remediating the art of music video [in Malleable boundaries - Creative modes of practice and inquiry in the Academy] The concept of remediation implies that new media attain cultural distinctiveness by paying homage to, and refashioning earlier media (Bolter & Grusin, 1999). Having explored remediation in my book David Bowie and the Art of Music Video (2023), I extended this project by employing creative practice research to test the flexibility of this concept. The affordances of several mediums and materials were explored to remediate three images from music videos previously analysed for my book.

Title of painting #1: Remediating Life On Mars?
When directing the music video for Life on Mars? (1973), photographer Mick Rock used 16mm film to remediate the materiality and two dimensionality of Pop Art and Japanese paintings of the Edo period known as Ukiyo-e. As an extension of this process, I experimented with the fluidity of watercolour paint to remediate these artforms in relation to the affordances of music video and still photography. 

Title of painting #2: Divine Heroes
When directing Heroes (1977), Stanley Dorfman sculpted with light and film to remediate Byzantine paintings and sculpture of the Renaissance period. Paying homage to these mediums, and referencing the Divine Mercy paintings of 1934 and 1944, I experimented with the vibrant hues and light-sculpting properties of watercolour paints and gold leaf. 

Title of painting #3: Ashes to Dada
When directing Ashes to Ashes (1980) an accident with camera settings enabled David Bowie and David Mallet to exploit the affordances of videotape, thus producing a unique remediation of avant-garde films of the 1920s. While using watercolour paint to rework the estranged colours and fuzzy materiality of videotape, my use of the cut-up method pays homage to the aleatory process associated with this video, to the Dada movement, and to the artistic process of Tristan Tzara, William Burroughs and David Bowie.

year: 2024-11-15

title: Legal responses to mental health: Is therapeutic jurisprudence the answer – the experience in New Zealand

authors: Toki, Valmaine

abstract: The orthodox understanding of ‘ethics’ encompasses a system of moral principles that define good and bad behavior. When applied to mental health, various jurisdictions, including New Zealand, have codified these principles together with the obligations on health service providers to meet these codified principles and standards. Underpinning this relationship is one of mutual trust where the physician has a responsibility, for example, to secure informed consent prior to any treatment. The existence of this therapeutic relationship can be applied when an offender who presents with a mental illness is subject to the criminal justice system.

text: Legal responses to mental health: Is therapeutic jurisprudence the answer – the experience in New Zealand The orthodox understanding of ‘ethics’ encompasses a system of moral principles that define good and bad behavior. When applied to mental health, various jurisdictions, including New Zealand, have codified these principles together with the obligations on health service providers to meet these codified principles and standards. Underpinning this relationship is one of mutual trust where the physician has a responsibility, for example, to secure informed consent prior to any treatment. The existence of this therapeutic relationship can be applied when an offender who presents with a mental illness is subject to the criminal justice system.

year: 2017