title: Magnetic helicity in magnetohydrodynamic turbulence with a mean magnetic field

authors: Stribling, Troy

abstract: A computational investigation of magnetic helicity of the fluctuatingmagnetic fieldHm in ideal and freely decaying three‐dimensional (3‐D) magnetohydrodynamics (MHD) in the presence of a uniform mean magnetic field is performed. It is shown that for ideal 3‐D MHDHm, which is a rugged invariant in the absence of a mean magnetic field [Frisch et al., J. Fluid Mech. 77, 796 (1975)], decays from its initial value and proceeds to oscillate about zero. The decay of Hm is shown to result from the presence of a new ‘‘generalized’’ helicity invariant, which includes contributions from the uniform magnetic field. The loss of invariance of Hm will diminish the effects of inverse transfer of Hm on freely decaying turbulence. This is demonstrated in a discussion of the selective decay relaxation process.

text: Magnetic helicity in magnetohydrodynamic turbulence with a mean magnetic field A computational investigation of magnetic helicity of the fluctuatingmagnetic fieldHm in ideal and freely decaying three‐dimensional (3‐D) magnetohydrodynamics (MHD) in the presence of a uniform mean magnetic field is performed. It is shown that for ideal 3‐D MHDHm, which is a rugged invariant in the absence of a mean magnetic field [Frisch et al., J. Fluid Mech. 77, 796 (1975)], decays from its initial value and proceeds to oscillate about zero. The decay of Hm is shown to result from the presence of a new ‘‘generalized’’ helicity invariant, which includes contributions from the uniform magnetic field. The loss of invariance of Hm will diminish the effects of inverse transfer of Hm on freely decaying turbulence. This is demonstrated in a discussion of the selective decay relaxation process.

year: 1995

title: Exploring the landscapes of external supervision

authors: Flintoff, Vivianne

subjects: counselling supervision

abstract: External supervision offers health and social service practitioners opportunities for exploring their work, professional development, and associated relationships. Within a context outside of the workplace, the supervision relationship allegedly supports practice within the workplace. There is a range of understanding within the sectors about the relationship between supervisor and practitioner. This paper explores the potential of closer relationships between agency and supervisor and the subsequent possibilities for greater accountability of the supervision work. Reflecting on our own practice as supervisors both within agencies and external to agencies, this paper invites readers (supervisors and practitioners) to draw on their own supervision experiences. The intention is to critique, challenge, and support critical reflection upon current and potential supervision arrangements for practitioners who participate in supervision that is external to their agencies.

text: Exploring the landscapes of external supervision External supervision offers health and social service practitioners opportunities for exploring their work, professional development, and associated relationships. Within a context outside of the workplace, the supervision relationship allegedly supports practice within the workplace. There is a range of understanding within the sectors about the relationship between supervisor and practitioner. This paper explores the potential of closer relationships between agency and supervisor and the subsequent possibilities for greater accountability of the supervision work. Reflecting on our own practice as supervisors both within agencies and external to agencies, this paper invites readers (supervisors and practitioners) to draw on their own supervision experiences. The intention is to critique, challenge, and support critical reflection upon current and potential supervision arrangements for practitioners who participate in supervision that is external to their agencies.

year: 2010

title: The discovery of the Waiorongomai goldfield in 1881

authors: Hart, Philip

abstract: The first reports of gold being found in the vicinity of the Waiorongomai Stream were made in early November 1880, and after the opening of the goldfield a small rush took place to this part of the mountain. The first claims were pegged out in December and the following January, encouraged by some gold being found, but few claims were registered, for most prospectors were quickly disappointed. Prospecting was difficult because of the rugged terrain and heavy bush, and interest quickly faded.
Then, in early October, Hone Werahiko announced his latest and best find and provided samples of payable ore taken from a large reef. Immense excitement ensued, as this was the first payable reef to be found, and after Werahiko led miners on an exhausting trip to his ‘New Find’ a rush set in and many claims were pegged out. The first official to inspect the ground anticipated that the reefs could be easily worked, once an access track was constructed. The small settlement of Te Aroha was revived because a real goldfield had been found, at last.

text: The discovery of the Waiorongomai goldfield in 1881 The first reports of gold being found in the vicinity of the Waiorongomai Stream were made in early November 1880, and after the opening of the goldfield a small rush took place to this part of the mountain. The first claims were pegged out in December and the following January, encouraged by some gold being found, but few claims were registered, for most prospectors were quickly disappointed. Prospecting was difficult because of the rugged terrain and heavy bush, and interest quickly faded.
Then, in early October, Hone Werahiko announced his latest and best find and provided samples of payable ore taken from a large reef. Immense excitement ensued, as this was the first payable reef to be found, and after Werahiko led miners on an exhausting trip to his ‘New Find’ a rush set in and many claims were pegged out. The first official to inspect the ground anticipated that the reefs could be easily worked, once an access track was constructed. The small settlement of Te Aroha was revived because a real goldfield had been found, at last.

year: 2016