title: Ōpōtiki Mai Tawhiti Kapa Haka

authors: Maxwell, Te Kahautu

abstract: Te Matatini is the World Champion Competition. Ōpōtiki Mai Tawhiti; Pool performance on Day 1 of the Te Matatini National Kapa Haka Competition. Ōpōtiki Mai Tawhiti placed second in the pool and qualified for the Top 9 Finals on Sunday 24th February 2013. Overall in the Pool qualifiers ŌpōTiki Mai Tawhiti placed 5th out of 41.

text: Ōpōtiki Mai Tawhiti Kapa Haka Te Matatini is the World Champion Competition. Ōpōtiki Mai Tawhiti; Pool performance on Day 1 of the Te Matatini National Kapa Haka Competition. Ōpōtiki Mai Tawhiti placed second in the pool and qualified for the Top 9 Finals on Sunday 24th February 2013. Overall in the Pool qualifiers ŌpōTiki Mai Tawhiti placed 5th out of 41.

year: 2013-02-21

title: The first accurate and precise calendar dating of New Zealand Māori Pā, using Otāhau Pā as a case study.

authors: Hogg, Alan G.

subjects: Māori pā

abstract: This research investigates the potential of radiocarbon wiggle-match dating of palisade posts to provide precise and accurate calendar ages for Māori pā (forts), using Otāhau Pā in the inland Waikato region, New Zealand, as a case study. Even though pā are a dominant element of the pre-European North Island archaeological landscape, they are poorly understood archaeologically, with systematic investigations hampered by the relative lack of precision in radiocarbon dating within the context of New Zealand’s comparatively short prehistory. Using the Southern Hemisphere calibration curve SHCal13, we determine wiggle-match calibrated ages for three palisade posts, using different sampling resolutions to determine the cost- effectiveness of the method. We also test the accuracy of the wiggle-match by obtaining new Southern Hemisphere calibration data from known calendar-age kauri.

text: The first accurate and precise calendar dating of New Zealand Māori Pā, using Otāhau Pā as a case study. This research investigates the potential of radiocarbon wiggle-match dating of palisade posts to provide precise and accurate calendar ages for Māori pā (forts), using Otāhau Pā in the inland Waikato region, New Zealand, as a case study. Even though pā are a dominant element of the pre-European North Island archaeological landscape, they are poorly understood archaeologically, with systematic investigations hampered by the relative lack of precision in radiocarbon dating within the context of New Zealand’s comparatively short prehistory. Using the Southern Hemisphere calibration curve SHCal13, we determine wiggle-match calibrated ages for three palisade posts, using different sampling resolutions to determine the cost- effectiveness of the method. We also test the accuracy of the wiggle-match by obtaining new Southern Hemisphere calibration data from known calendar-age kauri.

year: 2017

title: Properties of a thermostable β-glucosidase immobilized using tris(hydroxymethyl)phosphine as a highly effective coupling agent

authors: Oswald, Paul R.

subjects: tris(hydroxymethyl)phosphine

abstract: A very stable b-glucosidase (EC 3.2.1.21) was immobilized to polyacrylamide-magnetite beads, aminopropyl silica, and chitosan using tris(hydroxymethyl)phosphine (THP) or glutaraldehyde as the coupling reagent. The use of THP on chitosan resulted in greater than 90% yields with respect to free enzyme activity compared with only 60% observed when using the more conventional glutaraldehyde coupling reagent. THP-immobilized enzyme also lost activity more slowly than both glutaraldehyde-immobilized and the free enzyme when incubated at 90°C. Repetitive assays of THP and glutaraldehyde-immobilized enzyme also showed that THP was more able to retain active enzyme on the silica-based support. The pH optimum and Km app were unchanged with respect to free enzyme.

text: Properties of a thermostable β-glucosidase immobilized using tris(hydroxymethyl)phosphine as a highly effective coupling agent A very stable b-glucosidase (EC 3.2.1.21) was immobilized to polyacrylamide-magnetite beads, aminopropyl silica, and chitosan using tris(hydroxymethyl)phosphine (THP) or glutaraldehyde as the coupling reagent. The use of THP on chitosan resulted in greater than 90% yields with respect to free enzyme activity compared with only 60% observed when using the more conventional glutaraldehyde coupling reagent. THP-immobilized enzyme also lost activity more slowly than both glutaraldehyde-immobilized and the free enzyme when incubated at 90°C. Repetitive assays of THP and glutaraldehyde-immobilized enzyme also showed that THP was more able to retain active enzyme on the silica-based support. The pH optimum and Km app were unchanged with respect to free enzyme.

year: 1998