7,092 results for 1900

  • Geology of the Dusky Sound area, Fiordland, with emphasis on the structural-metamorphic development of some porphyroblastic staurolite pelites.

    Ward, Christopher Mark (1984)

    Post-doctoral thesis
    University of Otago

    Digital copy stored under Section 55 of the NZ Copyright Act.

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  • Plutonic and metamorphic rocks in the Victoria range segment of the Karamea batholith, Southwest Nelson, New Zealand.

    Tulloch, Andrew James (1979)

    Post-doctoral thesis
    University of Otago

    Digital copy stored under Section 55 of the NZ Copyright Act.

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  • The Poverty Bay massacre of 1868

    Black, Marjorie Edith Stuart (1935)

    Masters thesis
    University of Otago

    Digital copy stored under Section 55 of the NZ Copyright Act.

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  • The influence of approach velocity on bubble coalescence

    Kirkpatrick, RD; Lockett, MJ (1974-12)

    Journal article
    The University of Auckland Library

    Experiments have been carried out in which a cloud of air bubbles has been prevented from rising by downflowing water in a tube. High speed photography revealed an almost complete absence of bubble coalescence. This has been attributed to the large approach velocities of bubbles in the cloud. Further experiments in which a single bubble has been allowed to coalesce with a plane air???water interface have demonstrated the effect more clearly. Two basic types of bubble coalescence have been recognised depending on the approach velocity of the bubbles. At a low approach velocity, bubble coalescence is rapid, but coalescence times are considerably increased at large approach velocities. For pure liquids, a theory is put forward which shows that at low approach velocities film rupture can occur before the approaching bubbles are brought to rest. At large approach velocities the bubbles are brought to rest before rupture occurs. In the latter case bubble bounce can occur and the total coalescence time is thereby considerably increased. Based on observed approach velocities in a stationary bubble cloud, it is suggested that large approach velocities in a bubble column may be an important factor in limiting bubble coalescence.

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  • Froth regime point efficiency for gas-film controlled mass transfer on a two-dimensional sieve tray

    Lockett, MJ; Kirkpatrick, Robert; Uddin, MS (1979)

    Journal article
    The University of Auckland Library

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  • Ideal bubbly flow and actual flow in bubble column

    Lockett, MJ; Kirkpatrick, Robert (1975)

    Journal article
    The University of Auckland Library

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  • The value of hypnotism in the general practice of medicine

    Fenwick, Percival Clennell (1907)

    Post-doctoral thesis
    University of Otago

    Digital copy stored under Section 55 of the NZ Copyright Act.

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  • The life of Sir John L.C. Richardson

    McCaig, Joseph Bruce (1949)

    Masters thesis
    University of Otago

    Soldier, farmer, politician and crusader, Sir John Richardson may be said to have lived a full and varied life. His ability and integrity fitted him well to cope with the heavy responsibilities which were thrust upon him in his role of a leader of a pioneering community. The shaping of the future of Otago and New Zealand, and the welfare of their people, owed not a little to his practical knowledge, his good sense, and his devotion to the course which he believed Providence had marked out for him. Aloof and autocratic as he may have seemed to some of his contemporaries, his humane character and scrupulous honesty outweighed any faults he possessed, and he endeared “the Major”, as he was affectionately called, to every section of the community. It is the primary endeavour of this work to illustrate the way in which Richardson influenced his times and fulfilled his self-allotted task of serving his fellow men. [extract from Preface]

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  • An Animated Pedagogical Agent for SQL-Tutor

    Suraweera, Pramuditha (1999)


    University of Canterbury Library

    Animated pedagogical agents are animated characters that inhabit interactive learning environments. In addition to providing problem-solving advice in response to a student’s actions, they are also able to play a powerful motivational role. This project develops an animated pedagogical agent for the computer based teaching system, SQL-Tutor. The introduction of a pedagogical agent to SQL-Tutor enables it to provide higher motivational support to the students and enhances their quality of learning. An evaluation of the impact of the agent on the student’s learning experience was carried out with second year Computer Science students from the University of Canterbury. The study revealed that the presence of an animated character with an interesting personality has a strong positive effect on student’s perception of the learning experience. The study also demonstrated that students were more motivated to interact with the system equipped with the agent compared with the SQL-Tutor with no agent.

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  • Styelsamines A - D: New tetracyclic pyridoacridine alkaloids from the Indonesian ascidian Eusynstyela latericius

    Copp, Brent; Jompa, J; Tahir, A; Ireland, CM (1998)

    Journal article
    The University of Auckland Library

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  • Crystal structure of the cytotoxic marine alkaloid 2-bromoleptoclinidinone

    Lindsay, Brent; Oliver, Allen; Rickard, Clifton; Copp, Brent (1998)

    Journal article
    The University of Auckland Library

    2-Bromoleptoclinidinone methanol solvate, C18H8BrN3O??CH4O, crystallizes in the orthorhombic space group Pbca with a = 15.7013(2), b = 7.3308(1), and c = 26.9326(1) ??. The molecule is essentially planar, with the largest deviations occurring at bromine (???0.21 ??), carbonyl oxygen O(l) (+0.19 ??) and in ring-A (C(9) ???0.15 ??, C(10) ???0.15 ??). Methanol occupies the 1,10-phenanthroline-like metal binding site of the title compound.

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  • Structural requirements for biological activity of the marine alkaloid ascididemin

    Lindsay, BS; Barrows, LR; Copp, Brent (1995-04-06)

    Journal article
    The University of Auckland Library

    Comparison of the biological activities observed for ascididemin (2) and synthetic precursors/analogs has established the importance of N-8 in ring A, and a completed ring E, to topoisomerase II enzyme inhibition, human tumor cytotoxicity and antifungal/antibacterial properties. The results also suggest the presence of multiple mechanisms of toxicity by 2 towards mammalian cell systems.

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  • Efficient and convenient pyridine ring-E formation of the cytotoxic marine alkaloid ascididemin and related analogues

    Lindsay, Brent; Pearce, Allison; Copp, Brent (1997)

    Journal article
    The University of Auckland Library

    Conversion of tetracyclic quinone 1 to the cytotoxic pentacyclic alkaloid ascididemin (2) in 80% yield is achieved by reaction with paraformaldehyde and ammonium chloride in refluxing acetic acid. High yielding annelations are also observed for the related analogues N-8 deaza ascididemin (3) and kuanoniamine A (4).

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  • Bolinaquinone: A novel cytotoxic sesquiterpene hydroxyquinone from a Philippine Dysidea sponge

    De Guzman, FS; Copp, Brent; Mayne, CL; Concepcion, GP; Mangalindan, GC; Barrows, LR; Ireland, CM (1998)

    Journal article
    The University of Auckland Library

    Sesquiterpene hydroxyquinones and hydroquinones have been isolated from various sponges.3-16 The sesquiterpene moiety of these metabolites usually have the normal drimane skeleton, as exemplified by spongiaquinone (1),3 a rearranged drimane skeleton, as in ilimaquinone (2)4 and isospongiaquinone (3),3.5 or a monocyclic sesquiterpenoid skeleton, as in metachromin C (4)6 (Chart 1). Recently, Patil and co-workers isolated related sesquiterpene derivatives, frondosins A???E, which feature a 6,7-bicyclic skeleton, as exemplified by frondosin A (5).7 We report here the isolation and structure determination of a cytotoxic sesquiterpene hydroxyquinone, bolinaquinone (6), which showed a rearranged drimane skeleton but with a different position for the hydroxyquinone moiety.

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  • Natural and synthetic derivatives of discorhabdin C, a cytotoxic pigment from the New Zealand sponge Latrunculia cf. bocagei

    Copp, Brent; Fulton, KF; Perry, NB; Blunt, JW; Munro, MHG (1994-12)

    Journal article
    The University of Auckland Library

    Modification of the spiro-cyclohexadienone skeleton of discorhabdin C (3) led to a series of derivatives 6???11. The biological properties of this series were evaluated in a wide range of screens for selective cytotoxicity, antifungal, and antimicrobial properties. The structure and biological properties of a further discorhabdin, discorhabdin E (5), from a New Zealand sponge Latrunculia cf. bocagei are also presented.

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  • Isolation of 2-(3 '-bromo-4 '-hydroxyphenyl)ethanamine from the New Zealand ascidian Cnemidocarpa bicornuta

    Lindsay, Brent; Battershill, Christopher; Copp, Brent (1998)

    Journal article
    The University of Auckland Library

    From the ascidian Cnemidocarpa bicornuta, 2-(3'-bromo-4'-hydroxyphenol)ethanamine (3'-bromotyramine) (1) has been isolated along with the previously reported sponge metabolite, 1,3-dimethylisoguanine. The structure of 1 was confirmed by synthesis.

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  • 1,3-dimethylguanine, a new purine from the New Zealand ascidian Botrylloides leachi

    Lindsay, Brent; Battershill, Christopher; Copp, Brent (1999)

    Journal article
    The University of Auckland Library

    The new purine 1,3-dimethylguanine (1) has been isolated from the ascidian Botrylloides leachi. The structure of 1 was elucidated by analysis of spectroscopic data, by comparison with the regioisomeric purine 1,3-dimethylisoguanine (2), and by hydrolysis to theophylline (3).

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  • Panel versus individual interviews: A meta-analytic investigation of employment interview validity

    Guilford, Justine Rebecca (1997)

    Masters thesis
    University of Waikato

    Further analysis using a similar data set to the McDaniel, Whetzel, Schmidt and Maurer (1994) meta-analysis of employment interviews was performed in the present study, in order to investigate four possible causes for the apparent superiority of individual employment interviews. These causes included (a) criterion contamination of individual interview studies, (b) greater prevalence of psychologists performing individual interviews, (c) greater number of trained/experienced individual interviewers, and (d) greater prevalence of high proximity to target positions in individual interviews. A research question was also proposed to investigate whether all interview panel sizes were inferior to individual interviews in terms of validity. Meta-analyses using 204 job and training performance validity coefficients indicated that individual interviews were superior in validity to panel interviews, but only when the criterion was training performance. Training/experience was the only explanation for the superiority of individual interview validity, such that individual interviewers were more likely to be trained/experienced, suggesting that individual interview validity was superior as a result. The explanation that the use of psychologists in interviews may account for superior individual interview validity was only partially supported. While psychologists were more prevalent in individual interviews, individual interview validity was lower than that of panel interviews, when the criterion was job performance. Only when training was the criterion was individual interview validity higher when psychologists were interviewers. Two hypotheses were not supported. Firstly, there was no evidence of criterion contamination inflating individual interview validity. Secondly, no relationship between interviewer proximity and interview validity was found. Investigations of whether all panel sizes were inferior in terms of validity found that panel sizes of more than three members were superior in validity to individual interviews, when the criterion was job performance.

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  • Volcanic geology and hydrothermal alteration of the Onemana Area, Eastern Coromandel Peninsula

    Aldrich, Sean Mark (1995)

    Masters thesis
    University of Waikato

    The Onemana Peninsula is located on the eastern side of the Coromandel Peninsula north of the township of Whangamata. This study investigates the volcanology, structure and hydrothermal alteration of the northern half of the Onemana Peninsula. The study area is dominated by rhyolite domes and lava flows, with minor andesite lavas, rhyolite pyroclastics and lake sediments. The central region is extensively hydrothermally altered, with high levels of the original system preserved including hydrothermal eruption breccias and sinters. The Onemana area is dominated by three rhyolite dome complexes: Pohakahaka, Pokohino, and Wharekawa. The Pohakahaka Dome Complex in the south of the study area consists of pyroxene rhyolite domes, lavas and autoclastic breccias. The Pokohino Dome Complex in the central region of the study area consists of biotite rhyolite domes, lavas and autoclastic breccias. Lavas appear to have erupted as coulees and have flowed in a SE direction from a NE-trending ridge. The Wharekawa Dome Complex and Eastern Flows are dominated by biotite rhyolites. Pyroclastic and epiclastic material is overlain by rhyolite lavas in coastal sections north of Pokohino Beach, suggesting explosive activity preceded the eruption of some lavas. Some Eastern Flow lavas have flowed into water and produced a hyaloclastite in the north of the area. The deposition of the Glassy Dome Pyroclastics is thought to have resulted from the collapse of a rhyolite dome. Andesite lavas occur in the west of the study area, and their compositions suggest that they are related to the McBeths Andesite which outcrops 6 km to the NW. A hornblende-biotite ignimbrite is exposed in the north of the area, and is thought to have been erupted from outside the area. Thick lake sediments occur between the Pokohino and Wharekawa dome complexes and infill a graben structure. A hydrothermal eruption breccia resulting from over-pressuring of a geothermal system overlies the lake sediments. The structure of the area is dominated by NW, N, and NE striking faults, and minor EW striking faults. The local structure plays an important role in controlling the locations of volcanism and hydrothermal activity. Older N-striking structures appear to have controlled vent locations for the pyroxene rhyolites, while NE-striking structures have controlled the location the biotite rhyolites and hydrothermal alteration. Mineralised structures are controlled by NW and N striking faults between the NE striking Whitipirorua and Pokohino Faults. XRF analysis of selected volcanic rocks from Onemana show the area to be dominated by medium-K to high-K rhyolites (75-78 wt% SiO₂), with minor andesite (56-58 wt% SiO₂). On the basis of Zr abundance the rhyolites can be divided into high Zr (pyroxene rhyolites) and low Zr (biotite rhyolites, Glassy Dome Rhyolite). The rhyolites are thought to be closely associated with partial melting of the continental crust in a rifting environment. Pervasive to weak alteration occurs within a NE-trending corridor bounded by the Whitipirorua and Pokohino Faults. There are two main alteration types in the area which represent different hydrothermal environments: alkaline and acid alteration. Alkaline alteration consists of an inner core of quartz silicification, surrounded by quartz+ K-feldspar alteration, which grades out into epidote and weak clay alteration assemblages. Zeolites also occur as an overprinting alteration assemblage. Acid alteration consists of pervasive kaolinite alteration, with small areas of quartz + illite/smectite ± pyrophyllite alteration and opaline quartz silicification. The Onemana area shows many volcanic and hydrothermal features that are typical of caldera settings and are comparable with the rhyolite volcanic centres in the TVZ. It is suggested that the rhyolitic volcanism at Onemana resulted from late stage volcanism along the ring fracture of a large caldera structure.

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  • Teacher aides in special education

    Clegg, Jacky (1987)

    Reports
    University of Canterbury Library

    The role of teacher aides, in particular, and ancillary staff, in general, is emerging as a topic of considerable debate in our changing education system. It is not surprising, perhaps, that so much controversy and misunderstanding surrounds their deployment. This paper will attempt to clarify some of the central issues regarding teacher aides in Special Education.

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