96 results for Conference paper, Massey Research Online

  • Mathematical modelling of anoestrus in dairy cows and the linkage to nutrition

    Smith, JF; Soboleva, TK; Peterson, AJ; Pleasants, T; Chagas, LM; Burke, CR (2005-01-01)

    Conference paper
    Massey University

    Postpartum anoestrus is a major reproductive problem in New Zealand dairy cows and its duration is related to the nutrition levels both pre and post calving. However, the mechanistic details of this relationship are largely unknown. A better understanding of the interactions between nutritional status, and the levels of the reproductive hormones controlling follicle development and ovulation is needed. A mathematical model consisting of a set of interactive nonlinear differential equations and describing the dynamics of the interactions among luteinising hormone (LH), follicle stimulating hormone (FSH) and oestradiol was developed. The model depicts oestradiol profiles generated by individual follicles from the first follicular wave after calving until ovulation, and changes in LH pulsatility leading to the first pre-ovulatory surge are also produced. The robustness of the model was ascertained from iterative processes, and it was also checked against existing experimental data so as to mimic observed changes in hormone levels. It was shown that two mathematical parameters which control: i) the speed of changes in the feedback of LH activity to oestradiol; and, ii) the sensitivity of the ovarian response to LH, have the greatest effect on duration of anoestrus.

    View record details
  • The adaptation of cognitive behavioural therapy for adult Maori clients with depression: A pilot study

    Bennett, S; Flett, R; Babbage, D (2008)

    Conference paper
    Massey University

    A semistructured cognitive behavioural therapy (CBT) programme for depression was adapted for use with Maori adult clients with depression. Adaptations were developed in consultation with an advisory group consisting of Maori clinical psychologists and kaumatua with experience working in mental health services. The programme was piloted with 2 participants who were clients of a Maori mental health service. The programme builds on a more traditional CBT treatment programme by integrating concepts such as whakatauki, whanaungatanga, whanau involvement, and whakapapa into the therapeutic context. Despite limitations the results demonstrate considerable promise. Depressive symptoms increased substantially in both cases and both clients reflected positively on the adaptations incorporated into therapy.

    View record details
  • Interventions for children’s dental anxiety: Validating a coping styles scale

    Williams, M (2010)

    Conference paper
    Massey University

    Dental anxiety is a widespread phenomenon with deleterious oral health correlates. Consideration of variation in coping styles may be useful in the selection of effective dental anxiety interventions. Miller (1981, 1987) defined two key modalities for coping with threatening information: monitoring (attending to threatening information) and blunting (avoiding threatening information). This study will report on the New Zealand validation of a measure of children's monitoring-blunting copying styles in dental situations (the MBDS) in a sample of 240 New Zealand children aged 11-13 years. Internal consistency reliability and convergent validity with respect to a related scale wre adequate for both the monitoring and blunting subscales, although discriminant validity with regard to dental anxiety was weak for the blunting subscale. Use of a scale such as the MBDS may be one way in which dental staff can bring children's preferred copying styles into consideration when formulating interventions to manage dental anxiety.

    View record details
  • The influence of age and breed of cow on colostrum indicators of suckled beef calves

    Hickson, RE; Back, PJ; Martin, NP; Kenyon, PR; Morris, ST (2016-07-07)

    Conference paper
    Massey University

    false

    View record details
  • Reproductive performance of singleton and twin female offspring born to ewe-lamb dams and mature adult dams

    Kenyon, PR

    Conference paper
    Massey University

    false

    View record details
  • Inhibisie van osteoklastvorming en beenresorpsie deur poli-onversadigde vetsure in RAW 264.7 muismonosiete

    Boeyens, JCA; Chua, WH; Kruger, M; Joubert, AM; Coetzee, M (2012)

    Conference paper
    Massey University

    Inhibition of osteoclast differentiation and bone resorption by polyunsaturated fatty acids in RAW 264.7 murine macrophages. This study investigated the effects of polyunsaturated fatty acids on osteoclast formation and bone resorption in RAW 264.7 murine pre-osteoclasts. Data obtained suggests an inhibitory effect of these compounds on osteoclastogenesis and bone resorption in the cell line tested. Beenhermodellering in volwassenes is ‘n fisiologiese proses wat die sintese van beenmatriks deur osteoblaste en die resorpsie (afbraak) van been deur osteoklaste behels. Osteoklaste ontstaan deur die samesmelting van hematopoïetiese selle van monosiet-makrofaagafkoms en speel ‘n deurslaggewende rol in beenhermodellering. Osteoklast-ooraktiwiteit kan die afbraak van been in verskeie patologiese toestande tot gevolg hê. Kliniese- en dierestudies het aangedui dat sommige poli-onversadigde vetsure ‘n voordelige effek op been kan hê. Die doel van hierdie proefstudie was om te bepaal of omega-3 en omega-6 poli-onversadigde vetsure osteoklastvorming vanaf RAW 264.7 monosiete moduleer en daardeur die aantal volwasse resorberende osteoklaste kan beïnvloed. Monosiet/makrofaag-muisselle (RAW 264.7 pre-osteoklaste) is teen 1.5x104 selle/putjie in steriele 24-put plaatjies in die aanwesigheid van 15 ng/ml muisreseptor-aktiveerder van NFκBligand (RANKL) gesaai. RANKL is noodsaaklik vir osteoklastvorming vanaf voorgangerselle. Etanol (oplosmiddelkontrole), die omega-6 poli-onversadigde vetsure aragidoonsuur en gammalinoleensuur asook die omega-3 poli-onversadigde vetsure eikosapentaënöesuur en dokosaheksaënöesuur is by die selkulture teen konsentrasies van 5–20 μg/ml gevoeg. Palmitiensuur, ‘n versadigde vetsuur, teen ‘n konsentrasie van 20 μg/ml is as positiewe kontrole vir inhibisie van osteoklastvorming gebruik. Na vyf dae inkubasie is osteoklastvorming geëvalueer deur van tartraat-weerstandigesuurfosfatase (TRAP)-kleuring gebruik te maak. TRAP-positiewe selle met vyf of meer kerne word as veelkernige osteoklaste beskou. Soortgelyke eksperimente is uitgevoer op plaatjies wat bedek is met ‘n sintetiese anorganiese beenoppervlak. Na sewe dae inkubasie is die selle afgewas en resorpsie van die oppervlak met behulp van mikroskoopfoto’s waargeneem. Die persentasie resorpsie-oppervlak is daarna met behulp van toepaslike rekenaarsagteware bepaal. Verder is RAW 264.7 selle op beenskyfies gesaai om die effek van poli-onversadigde vetsure op die degradering van organiese en anorganiese beenkomponente te evalueer. Na nege dae is die gekondisioneerde media afgetrek en die hoeveelheid Ca2+ en kollageenfragmente, beendegraderingsprodukte onderskeidelik afkomstig vanaf die anorganiese en organiese komponente van beenafbraak, deur gepaste kolorimetriese metodes bepaal. Resultate van hierdie studie het getoon dat die vorming van veelkernige osteoklaste deur die blootstelling aan poli-onversadigde vetsure by konsentrasies van 5–20 μg/ml geïnhibeer word. Blootstelling aan al die vetsure het tot inhibering van osteoklastvorming gelei met die grootste effek by die hoogste vetsuurkonsentrasies. Dokosaheksaënöesuur (omega-3) het die mees betekenisvolle inhiberende effek oor al die konsentrasies getoon en eikosapentaënöesuur die minste. Resorpsieholtes op die gesimuleerde beenplaatjies was kleiner waar die selle aan aragidoonsuur en dokosaheksaënöesuur blootgestel was in vergelyking met dié van die oplosmiddelkontrole, wat moontlik aan die laer voorkoms van volwasse veelkernige osteoklaste toegeskryf kan word. ‘n Afname in die beendegraderingsprodukte is ook waargeneem waar selle blootgestel is aan aragidoonsuur en dokosaheksaënöesuur in vergelyking met die oplosmiddelkontrole. Die resultate ondersteun die vermoede dat poli-onversadigde vetsure die vorming van volwasse osteoklaste inhibeer en daardeur ‘n beenbeskermende effek tot gevolg mag hê. Verdere navorsing is nodig om duidelikheid oor die meganismes wat hier betrokke is, te verkry. Hierdie navorsing is deur die Mediese Navorsingsraad en die Navorsings-ontwikkelingsprogram (Universiteit van Pretoria) befonds.

    View record details
  • The use of farm-management tools by New Zealand sheep farmers: changes with time

    Corner-Thomas, RA; Kenyon, PR; Morris, ST; Ridler, AL; Hickson, RE; Greer, AW; Logan, CM; Blair, HT (2016-07-07)

    Conference paper
    Massey University

    The utilisation of farm-management tools by New Zealand sheep farmers can support on-farm decision making, thus facilitating improvements in productivity and profitability of the farming enterprise. There are numerous management tools available to farmers, for example, a recent report identified 127 tools that were available to New Zealand farmers (Allen & Wolfert 2011). Although a large number of tools are accessible to farmers, a survey of sheep farmers conducted in 2012 by Corner-Thomas et al. (2015) identified many that were utilised by only a small percentage of farmers. This indicates that there is the potential for increased uptake of management tools which, if relevant, may lead to benefits in on-farm productivity. The aim of the current study was to determine for sheep farmers in New Zealand, if use of farm-management tools had changed over a two-year period.

    View record details
  • A study of Rubi/Furigana functions: Spectrum between a translation type and a pragmatic type.

    Nakamura, J

    Conference paper
    Massey University

    This is part of an on-going project about the comprehensive understanding of uses of Rubi/Furigana taxonomy in the writing system of modern Japanese. Rubi/Furigana is a small typed script on the top of Chinese characters, the basic function of which is a supportive tool for readers about how to read Chinese characters in a text or sometimes is used as a gloss such as for telling what kind of meanings Chinese characters have. The paper will present different uses of Rubi/Furigana from the basic reading function and attempt to make a new taxonomy of Rubi/Furigana functions. For example, as a creative use, Rubi/Furigana sometimes has a different reading from its original reading of Chinese characters. In that case, we can observe borrowing sounds from English along with the Chinese characters or synonymous meaning sounds on the Chinese characters such as using dialects instead of standard readings or personal pronouns on Chinese characters of person names. The research is based on a cognitive semantic approach, which can describe those unconventional uses of Rubi/Furigana as construal alternatives different from the basic reading. Translation analysis is also utilized for the pragmatic categorizations of the gaps between an original meaning of Rubi/Furigana and creative uses of Rubi/Furigana. So far, in my research, I have identified five types of uses of Rubi/Furigana. Among them, this paper will focus on the difference between translation type of Rubi/Furigana and pragmatic type of Rubi/Furigana and describe it as a continuum of their categories. The main data will be taken from a translation of ‘The Great Gatsby’ by Murakami Haruki and the comic ‘Shingeki no Kyojin’ (Attack on Titian).

    View record details
  • Institute of Clinical Psychology - Case Study Forum: Defence Trauma

    de Terte, ID (2013)

    Conference paper
    Massey University

    false

    View record details
  • Smiling to Smiles After Exclusion: Social Rejection Enhances Affiliative Signalling

    Philipp, MC; Bernstein, M; Vanman, EJ; Johnston, L (2014)

    Conference paper
    Massey University

    Reciprocating others' smiles is important for maintaining social connections as it both signals a common affective state to others and possibly induces empathetic reactions in the actor. Feelings of social exclusion may increase such "mimicry" as a means to improve affiliative bonds with others. Whether smile reciprocation differs based on the perceived smile type was the focus of this study. Young adults wrote about either a time they were excluded or a neutral event. They then viewed a series of smiles-half genuine and half posed. Facial electromyography recorded muscle activity involved in smiling. Excluded participants better distinguished the two smile types. They also showed greater zygomaticus (cheek) activity toward genuine smiles compared to posed smiled; non-excluded participants did not. The extent to which participants reciprocated the smiles was unrelated to their ability to distinguish between smile types. Affiliative motivation is discussed as a possible explanation for these effects.

    View record details
  • Monitoring cognitive function during ECT: Current New Zealand practice

    Thornton, A; Leathem, J; Flett, R (2013)

    Conference paper
    Massey University

    Objective: To determine current practice regarding cognitive assessment during electroconvulsive therapy among ECT treating professionals across New Zealand. Design/Participants: A questionnaire sent to 45 professionals resulted in a response rate of 35.5% from 12 district health boards across New Zealand. Results: Most assess cognitive function at least once during a course of ECT. A third assess at baseline, at least once during and then after the course. Assessments are being conducted by people from various professions. Over two thirds said that a lack of time, resources and sensitive tests were restricting more frequent and thorough cognitive assessments. Conclusion: Respondents recognise that assessing cognitive functioning during a course of ECT is important, though large variations in the nature, frequency and length of the assessments exist. Future research should develop a standardised, sensitive, inexpensive screening measure tailored for use with patients receiving ECT to help overcome the current restrictions to cognitive assessment.

    View record details
  • The relationship between psychological resilience and posttraumatic stress in young adults exposed to an earthquake

    de Terte, ID; Heetkamp, T (2013)

    Conference paper
    Massey University

    false

    View record details
  • Coin rotation task. The development of norms for New Zealand and the United States

    Thornton, A; Leathem, JM

    Conference paper
    Massey University

    Merits of the Coin Rotation Task √ Validated against FTT, GST, GPT √ Available, inexpensive, & easily replaceable √ Light – especially compared to other motor tasks √ Doesn't lose calibration √ Free from education effects Why is it not used more often? • Limited norms exist for the use of the task.

    View record details
  • Dysfunctional cognitive processing in youth and its association with symptoms of anxiety and depression

    Tairi, T

    Conference paper
    Massey University

    Cognitive models of psychopathology suggest that negatively biased thinking styles are involved in the development and maintenance of emotional disturbances. This study examined the relationships between cognitive errors and self-reported symptoms of anxiety and depression in a large sample of Greek adolescents, aged 12 to 18 years (N = 883). The Children’s Negative Cognitive Error Questionnaire was used to measure four types of cognitive errors. The State-Trait Anxiety Inventory assessed anxiety and the Center for Epidemiologic Studies Depression Scale assessed depression. As hypothesised, results indicated that cognitive distortions were significantly associated with and predictive of greater levels of symptoms of anxiety and depression. This study provides empirical data on the role of dysfunctional cognitive processing and emotional disturbance, thereby identifying primary targets for intervention and prevention programmes for adolescents.

    View record details
  • Are emotional regulation strategies able to be taught to people with an intellectual disability?

    de Terte, ID; McWilliams, J; Leathem, J (2013)

    Conference paper
    Massey University

    false

    View record details
  • Practitioners' processes and attitudes involved in the diagnosis of cognitive impairment

    McKinlay, AR; Leathem, JM; Merrick, PL (2014)

    Conference paper
    Massey University

    The present study sought to build on the findings of Mitchell, Woodward and Hirose (2008) who first examined the subject of practitioner attitudes towards disclosure of mild cognitive impairment (MCI) in Australia and New Zealand. 57 New Zealand based practitioners completed an online questionnaire relating to how they reach a diagnosis of cognitive impairment and factors considered when relaying a diagnosis to a client. The findings indicate that 83% of practitioners directly labelled MCI during diagnosis disclosure. All qualitative responses were analysed using traditional content analysis. This study adds to the field of ethics and diagnostic disclosure in that it highlights what specific factors are considered when a practitioner chooses how to relay a diagnosis to their client, such as the presence of other illnesses, the specific wishes of the client and that the family should at least know if the client doesn't.

    View record details
  • Facilitating vertical integration of knowledge from animal physiology to farm system level

    Matthew, C; Parkinson, T; Kemp, P

    Conference paper
    Massey University

    We describe a teaching methodology evolved over 25 years for taking incoming students with little farming background to near-consultancy level in terms of ability to discuss feed supply and demand manipulation with practicing farmers. The methodology is currently used in a double semester course offering to 2nd year BVSc students at Massey University with positive feedback from students. Component skills such as visual assessment of herbage mass are introduced at the outset. A keystone of the methodology is the provision of student operated 'farmlets' with 16 sheep on 0.8 ha, where the storage of autumn-surplus feed as increased herbage mass, and release back to animals for winter and early lactation feed is demonstrated. Feed budget calculations for these farmlets in units of MJ metabolisable energy and kg pasture DM/ha/ day promote understanding of animal physiology principles and simulate those of a larger scale commercial farm. As currently offered the module comprises 20 lectures and 5 organised 2 hour farmlet discussion and data collection visits. Students complete additional farmlet work in their own time, such as moving or weighing sheep. Two written assignments promote integration of component knowledge and ownership of that information by participants.

    View record details
  • Clinical decision making among sexual abuse counsellors working with child and adult survivors of sexual abuse: A New Zealand study

    Woolley, CC; Craven, G; Dickson, J; Evans, I (2013)

    Conference paper
    Massey University

    Providing therapy for child and adult sexual abuse survivors is a complex area of therapeutic practice. A nationwide survey was undertaken in order to investigate the decision-making processes of practitioners working with child abuse survivors. Forty-one child-focussed practitioners and 113 adult-focussed practitioners responded to open-ended questions about indicators of sexual abuse, and the factors informing their therapeutic decisions. Thematic analysis of their responses indicated nine themes: indicators of sexual abuse, safety, need for disclosure, the therapeutic process, working with emotions and behaviours, taking a developmental approach, influence and involvement of the family, working with external agencies, and intuition and experience versus evidence-based decisions. How these themes inform decisions made by practitioners and their implications for strengthening clinical judgement through professional development is discussed. In addition, the implications of these findings and their potential to enhance the psychotherapy training needs of clinical psychologists will be discussed.

    View record details
  • Everyday cognitive failures and memory compensation efforts: A selective optimization with compensation (SOC) Analysis

    Scheibner, G; Leathem, JM (2013)

    Conference paper
    Massey University

    The theory of Selective Optimization with Compensation (SOC) outlines how individuals may adapt more or less successfully to aging-related changes. Controlling for age, gender, education, and subjective health, the present study examined the relationships between cognitive failures and the SOC life management strategies. Results of this online survey (N = 409) indicated that SOC endorsement accounted for a significant reduction in each of the facets of the Cognitive Failures Questionnaire (i.e., forgetfulness, distractibility, and false triggering). Additional hypotheses tested whether mood may have a moderating effect on the beneficial effects of SOC, and whether SOC endorsement may moderate individual's efforts to compensate for perceived memory impairments. Results suggest that low mood attenuates the beneficial effects that SOC has on the frequency of cognitive failures. Counter to expectations, SOC endorsement did not affect the forgetfulness/memory compensation relationship. Results are discussed in view of methodological limitations and suggestions for future research are outlined.

    View record details
  • Improving memory in midlife: A multiple case study evaluation of a group-based memory programme for healthy middle-aged individuals

    Scheibner, G; Leathem, JM

    Conference paper
    Massey University

    Background • The literature shows that significant memory decline begins during midlife which is usually defined as the period of life between of 40-65 years of age. • 40 % of middle-aged people report everyday forgetfulness (Ponds, Commissaris, & Jolles, 1997). • More than half of these people perceive their forgetfulness as a hindrance in their daily live. • 70% of individuals in this age-group have expressed worries about their increasing forgetfulness (Commissaris, Ponds, & Jolles, 1998). • Memory interventions though are usually intended for individuals who are older than 65 years of age with mild to moderate memory impairment or for people with recognised neurological conditions such as TBI.

    View record details