title: Re-designing Greenstone for Seniors

authors: Bennett, Erin Kay

subjects: Greenstone

abstract: The golden generation have a wealth of experience and knowledge from throughout
their lifetimes that younger generations wish to retain. In our technology filled world
an obvious means of collecting this information is electronically. Digital library col-
lections are increasingly used by libraries and large institutions to record their large
amounts of information but they can also be used for personal collections.
Seniors are often willing and keen to impart their years of experience upon people
of the younger generation but time is not always on their side as they grow older.
Throughout a lifetime a person could collect large amounts of papers, diaries, pho-
tos and media but the time it takes to organise these documents can be long and
exhausting and the person's health is not always at its best in old age.
Greenstone is a suite of software for creating digital libraries, which are organised
collections of documents. Greenstone has the ability to distribute collections either
using a server or CD-ROM, and provides advanced searching and organization tools.
While Greenstone is a versatile and useful tool in creating digital collections, its in-
terface is not designed for senior users. Seniors are commonly perceived to have
more physical and mental disadvantages as they get older. These disadvantages can
dramatically affect how usable seniors find a piece of software.
The aim of this thesis is to investigate how usable the current Greenstone interface
is for use by seniors and to re-design the interface so that Greenstone may be more
easily used by senior users. This thesis focuses upon what types of documents and
descriptive data seniors would like to include in a collection about their life. This is
to ascertain exactly what parts of the interface must be improved when it comes to
metadata and classifiers. The results of this investigation also helped in the creation
of a customised metadata set for senior users use.

text: Re-designing Greenstone for Seniors The golden generation have a wealth of experience and knowledge from throughout
their lifetimes that younger generations wish to retain. In our technology filled world
an obvious means of collecting this information is electronically. Digital library col-
lections are increasingly used by libraries and large institutions to record their large
amounts of information but they can also be used for personal collections.
Seniors are often willing and keen to impart their years of experience upon people
of the younger generation but time is not always on their side as they grow older.
Throughout a lifetime a person could collect large amounts of papers, diaries, pho-
tos and media but the time it takes to organise these documents can be long and
exhausting and the person's health is not always at its best in old age.
Greenstone is a suite of software for creating digital libraries, which are organised
collections of documents. Greenstone has the ability to distribute collections either
using a server or CD-ROM, and provides advanced searching and organization tools.
While Greenstone is a versatile and useful tool in creating digital collections, its in-
terface is not designed for senior users. Seniors are commonly perceived to have
more physical and mental disadvantages as they get older. These disadvantages can
dramatically affect how usable seniors find a piece of software.
The aim of this thesis is to investigate how usable the current Greenstone interface
is for use by seniors and to re-design the interface so that Greenstone may be more
easily used by senior users. This thesis focuses upon what types of documents and
descriptive data seniors would like to include in a collection about their life. This is
to ascertain exactly what parts of the interface must be improved when it comes to
metadata and classifiers. The results of this investigation also helped in the creation
of a customised metadata set for senior users use.

year: 2008

title: Regulation of phosphorus bioavailability by iron nanoparticles in a monomictic lake

authors: Saeed, Huma

subjects: Science & Technology

abstract: Dissolved reactive phosphorous (DRP) in lake systems is conventionally considered to predominate over other dissolved P species, however, this view neglects an important set of interactions that occurs between P and reactive iron hydroxide surfaces. This study addresses the coupling of P with dispersed iron nanoparticles in lakes, an interaction that may fundamentally alter the bioavailability of P to phytoplankton. We used difusive gradients in thin flms (DGT) and ultrafltration to study Fe-P coupling in the water column of a monomictic lake over a hydrological year. Fe and P were predominantly colloidal (particle diameters>~5nm<~20nm) in both oxic epilimnetic and anaerobic hypolimnetic waters, but they were both DGT-labile under sub-oxic conditions, consistent with difusion and dissolution of Fe-and-P-bearing colloids within the DGT difusive gel. During peak stratifcation, increases in Fe and P bioavailability were spatially and temporally coincident with Fe nanoparticle dissolution and the formation of a deep chlorophyll maximum at 5–8m depth. These results provide a window into the coupling and decoupling of P with mobile iron colloids, with implications for our understanding of the behaviour of nutrients and their infuence on phytoplankton community dynamics.

text: Regulation of phosphorus bioavailability by iron nanoparticles in a monomictic lake Dissolved reactive phosphorous (DRP) in lake systems is conventionally considered to predominate over other dissolved P species, however, this view neglects an important set of interactions that occurs between P and reactive iron hydroxide surfaces. This study addresses the coupling of P with dispersed iron nanoparticles in lakes, an interaction that may fundamentally alter the bioavailability of P to phytoplankton. We used difusive gradients in thin flms (DGT) and ultrafltration to study Fe-P coupling in the water column of a monomictic lake over a hydrological year. Fe and P were predominantly colloidal (particle diameters>~5nm<~20nm) in both oxic epilimnetic and anaerobic hypolimnetic waters, but they were both DGT-labile under sub-oxic conditions, consistent with difusion and dissolution of Fe-and-P-bearing colloids within the DGT difusive gel. During peak stratifcation, increases in Fe and P bioavailability were spatially and temporally coincident with Fe nanoparticle dissolution and the formation of a deep chlorophyll maximum at 5–8m depth. These results provide a window into the coupling and decoupling of P with mobile iron colloids, with implications for our understanding of the behaviour of nutrients and their infuence on phytoplankton community dynamics.

year: 2018

title: Language Preference in a Bi-language Digital Library

authors: Keegan, Te Taka Adrian Gregory

subjects: log analysis

abstract: This paper examines user choice of interface language in a bi-language digital library(English and Maori, the language of the indigenous people of New Zealand)/ the majority of collection documents are in Maori, and the interface is available in both Maori and English. Log analysis shows three categories of preference for interface language: primarily English, primarily Maori and bilingual(switching back and forth between the two).

text: Language Preference in a Bi-language Digital Library This paper examines user choice of interface language in a bi-language digital library(English and Maori, the language of the indigenous people of New Zealand)/ the majority of collection documents are in Maori, and the interface is available in both Maori and English. Log analysis shows three categories of preference for interface language: primarily English, primarily Maori and bilingual(switching back and forth between the two).

year: 2005