title: Using keyphrases as search result surrogates on small screen devices

authors: Jones, Steve

subjects: computer science

abstract: This paper investigates user interpretation of search result displays on small screen devices. Such devices present interesting design challenges given their limited display capabilities, particularly in relation to screen size. Our aim is to provide users with succinct yet useful representations of search results that allow rapid and accurate decisions to be made about the utility of result documents, yet minimize user actions (such as scrolling), the use of device resources, and the volume of data to be downloaded. Our hypothesis is that keyphrases that are automatically extracted from documents can support this aim. We report on a user study that compared how accurately users categorized result documents on small screens when the document surrogates consisted of either keyphrases only, or document titles. We found no significant performance differences between the two conditions. In addition to these encouraging results, keyphrases have the benefit that they can be extracted and presented when no other document metadata can be identified.

text: Using keyphrases as search result surrogates on small screen devices This paper investigates user interpretation of search result displays on small screen devices. Such devices present interesting design challenges given their limited display capabilities, particularly in relation to screen size. Our aim is to provide users with succinct yet useful representations of search results that allow rapid and accurate decisions to be made about the utility of result documents, yet minimize user actions (such as scrolling), the use of device resources, and the volume of data to be downloaded. Our hypothesis is that keyphrases that are automatically extracted from documents can support this aim. We report on a user study that compared how accurately users categorized result documents on small screens when the document surrogates consisted of either keyphrases only, or document titles. We found no significant performance differences between the two conditions. In addition to these encouraging results, keyphrases have the benefit that they can be extracted and presented when no other document metadata can be identified.

year: 2003-09

title: Applications of Hydroxymethylphosphines

authors: Wyllie, Megan Jane

subjects: Hydroxymethylphosphine

abstract: Hydroxymethylphosphines are compounds containing P-CH₂-OH functional groups. They have numerous applications, of which three types were explored in this project.
The cross-linking ability of tris(hydroxymethyl)phosphine (THP) was investigated for use as a fixative for biological samples for visualisation by scanning electron microscopy (SEM). THP has similar cross-linking ability to glutaraldehyde, the most commonly used fixative for SEM samples. Samples fixed with THP were compared with samples fixed with glutaraldehyde and an unfixed sample, under the SEM. THP appears to have a similar effect on the preservation of the samples, and seems to be successful as a fixative.
The bonding between Ph₂P(S)CH₂OH and diiodine was investigated. The resulting adduct was unable to be crystallised. It was partially characterised by ³¹P NMR and IR spectroscopy. The related compound, Ph₃PS.I₂ was synthesised successfully and characterised by ³¹P NMR and IR spectroscopy.
The ability of THP to immobilise compounds to solid supports, in the interest of immobilising fluorescent compounds was investigated. THP was used to immobilise N-(2-aminoethyl)-1,8-naphthalimide onto aminopropyl silica, and analysed under UV light. The resulting solid however, fluoresced only slightly. The reaction between Ph₂P(CH₂OH) ₂Cl and N-(2-aminoethyl)-1,8-naphthalimide was also investigated, but the product was unable to be crystallised.

text: Applications of Hydroxymethylphosphines Hydroxymethylphosphines are compounds containing P-CH₂-OH functional groups. They have numerous applications, of which three types were explored in this project.
The cross-linking ability of tris(hydroxymethyl)phosphine (THP) was investigated for use as a fixative for biological samples for visualisation by scanning electron microscopy (SEM). THP has similar cross-linking ability to glutaraldehyde, the most commonly used fixative for SEM samples. Samples fixed with THP were compared with samples fixed with glutaraldehyde and an unfixed sample, under the SEM. THP appears to have a similar effect on the preservation of the samples, and seems to be successful as a fixative.
The bonding between Ph₂P(S)CH₂OH and diiodine was investigated. The resulting adduct was unable to be crystallised. It was partially characterised by ³¹P NMR and IR spectroscopy. The related compound, Ph₃PS.I₂ was synthesised successfully and characterised by ³¹P NMR and IR spectroscopy.
The ability of THP to immobilise compounds to solid supports, in the interest of immobilising fluorescent compounds was investigated. THP was used to immobilise N-(2-aminoethyl)-1,8-naphthalimide onto aminopropyl silica, and analysed under UV light. The resulting solid however, fluoresced only slightly. The reaction between Ph₂P(CH₂OH) ₂Cl and N-(2-aminoethyl)-1,8-naphthalimide was also investigated, but the product was unable to be crystallised.

year: 2015

title: The arguing genre and the explaining genre: A comparison in terms of discourse relational analyses of texts written in English and texts written in Māori

authors: Crombie, Winifred

subjects: Māori linguistics

abstract: There is a commonly held belief that those who are immersed in indigenous cultures have a tendency, when constructing academic texts, to avoid sequential, deductive argumentation. We report here on a comparison of two groups of texts exhibiting two different genres - 'explaining' and 'arguing'. One group of texts was written in Māori by indigenous authors, the other group was written in English by non-indigenous authors. Our findings are that although the percentage use of logico-deductive relationships is roughly equivalent for both groups of texts/ writers in the case of the explaining genre, the Māori texts/ writers use almost twice the percentage of logico-deductive relationships as do the English texts/ writers.

text: The arguing genre and the explaining genre: A comparison in terms of discourse relational analyses of texts written in English and texts written in Māori There is a commonly held belief that those who are immersed in indigenous cultures have a tendency, when constructing academic texts, to avoid sequential, deductive argumentation. We report here on a comparison of two groups of texts exhibiting two different genres - 'explaining' and 'arguing'. One group of texts was written in Māori by indigenous authors, the other group was written in English by non-indigenous authors. Our findings are that although the percentage use of logico-deductive relationships is roughly equivalent for both groups of texts/ writers in the case of the explaining genre, the Māori texts/ writers use almost twice the percentage of logico-deductive relationships as do the English texts/ writers.

year: 2005-02