title: Site Characterisation and Assessment of Sediments For Beach Renourishment

authors: Longdill, Peter Clifford

subjects: Marsden Point

abstract: Marsden Point, Northland, New Zealand, is a Holocene, prograded barrier spit at the tidal inlet to Whangarei Harbour. The development of the Northport timber export port at Marsden Point in late 2000 modified the tidal inlet dynamic equilibrium due to a large reclamation (32.6 ha) and dredged turning basin (31.8 ha to 13 m below Chart Datum). The effects of the Northport development on the inlet morphodynamics and the potential use of dredge sediments as beach nourishment fill are the foci of this study.
Regional sediment transport patterns adjacent to the Northport development were inferred and documented through the interpretation of sediment grain size distributions, geomorphic analysis of historical shoreline and bathymetry data, analysis of beach profiles, identification of seabed sediment transport pathways, and calculation of potential sediment transport vectors from hindcast wind-wave and current meter data.
Sediments found in the lower harbour are consistent with Schofield's (1975) Hauraki (B) facies. Shelly lag sediments, which armour and stabilise the bed, were observed in similar locations to those present in 1983. Sediment transport directions inferred from sediment textural analyses were generally in agreement with directions found from beach profile analysis, morphologic interpretation and calculation of potential sediment transport vectors.
Analysis of thirteen rectified and geo-referenced vertical aerial photographs of the Marsden Point region over the period 1984 to 2001, indicated a general reduction in dry beach widths within the harbour, and an increase in beach width at Marsden Point, where opposing sediment transport vectors meet and the ebb tidal delta of Mair Bank became 'welded' to the shoreline. This area exhibits highly variable beach profiles and offshore bathymetry, indicative of the relatively large potential sediment vectors meeting at this location.
Comparison of digital bathymetric surveys, sediment transport pathways and bedform locations both pre and post-development, indicates changes have been limited to the local reclamation and dredge basin areas. Reduced post-development sediment transport potentials were found in the northern areas of the dredge basin. There is potential for scour and the development of a shell lag at the dredge basin's eastern edge. Small-scale (-1,000m³yr¹} accretion has been observed against both western and eastern edges of the Northport reclamation. Accretion is occurring due to dominant longshore sediment transport patterns (western edge) and the creation of a 'current transport shadow zone' (eastern edge). Dredge basin sedimentation is expected to increase over the next 5-10 years to reach 15-20,000 m³ yr¹ as the beach profile against Northport's western edge 'fills' with sediment.
Sediment grain size comparisons and sediment transport patterns have been used to develop an effective beach nourishment plan for Marsden Bay (West and Central) using sediments sourced from Northport's dredge basin.
The Northport development has caused only local modifications to sediment transport processes operating within the lower Whangarei Harbour. There have been no largescale changes in sediment transport patterns or morphology observed postdevelopment.

text: Site Characterisation and Assessment of Sediments For Beach Renourishment Marsden Point, Northland, New Zealand, is a Holocene, prograded barrier spit at the tidal inlet to Whangarei Harbour. The development of the Northport timber export port at Marsden Point in late 2000 modified the tidal inlet dynamic equilibrium due to a large reclamation (32.6 ha) and dredged turning basin (31.8 ha to 13 m below Chart Datum). The effects of the Northport development on the inlet morphodynamics and the potential use of dredge sediments as beach nourishment fill are the foci of this study.
Regional sediment transport patterns adjacent to the Northport development were inferred and documented through the interpretation of sediment grain size distributions, geomorphic analysis of historical shoreline and bathymetry data, analysis of beach profiles, identification of seabed sediment transport pathways, and calculation of potential sediment transport vectors from hindcast wind-wave and current meter data.
Sediments found in the lower harbour are consistent with Schofield's (1975) Hauraki (B) facies. Shelly lag sediments, which armour and stabilise the bed, were observed in similar locations to those present in 1983. Sediment transport directions inferred from sediment textural analyses were generally in agreement with directions found from beach profile analysis, morphologic interpretation and calculation of potential sediment transport vectors.
Analysis of thirteen rectified and geo-referenced vertical aerial photographs of the Marsden Point region over the period 1984 to 2001, indicated a general reduction in dry beach widths within the harbour, and an increase in beach width at Marsden Point, where opposing sediment transport vectors meet and the ebb tidal delta of Mair Bank became 'welded' to the shoreline. This area exhibits highly variable beach profiles and offshore bathymetry, indicative of the relatively large potential sediment vectors meeting at this location.
Comparison of digital bathymetric surveys, sediment transport pathways and bedform locations both pre and post-development, indicates changes have been limited to the local reclamation and dredge basin areas. Reduced post-development sediment transport potentials were found in the northern areas of the dredge basin. There is potential for scour and the development of a shell lag at the dredge basin's eastern edge. Small-scale (-1,000m³yr¹} accretion has been observed against both western and eastern edges of the Northport reclamation. Accretion is occurring due to dominant longshore sediment transport patterns (western edge) and the creation of a 'current transport shadow zone' (eastern edge). Dredge basin sedimentation is expected to increase over the next 5-10 years to reach 15-20,000 m³ yr¹ as the beach profile against Northport's western edge 'fills' with sediment.
Sediment grain size comparisons and sediment transport patterns have been used to develop an effective beach nourishment plan for Marsden Bay (West and Central) using sediments sourced from Northport's dredge basin.
The Northport development has caused only local modifications to sediment transport processes operating within the lower Whangarei Harbour. There have been no largescale changes in sediment transport patterns or morphology observed postdevelopment.

year: 2004

title: Embodying Sexy: Narrative Inquiry into Female Sexuality and Consumer Culture

authors: Travis, Courtney

subjects: Female Sexuality

abstract: This research investigates female sexuality and consumer culture. It focuses on sexy as a form of expressing sexuality. The main objectives of this research were to understand what sexy meant to a group of young women and how they were socialised into their meaning through the consumer culture they live in. A narrative inquiry is used to understand these women’s embodied experience using collective biography and digital storytelling methods. A group of seven women participated in three group meetings to collectively research sexy. Collective biography and digital storytelling were layered upon one another to understand these women’s experiences of sexy and to enable collaborative analysis. Through the meetings the women progressed through the meetings in their comprehension of their own and the collective’s meaning of sexy. They did so through the creation of memory and digital stories. The research highlighted sexy as complex, contradictory, consequential, and dynamic for these women. Sexy was complex because it was embodied as multisensory. It was also contradictory because the images of sexy presented in consumer culture are not consistent with these women’s beliefs. The contrary nature of sexy resulted in envy, low self-esteem, and objectification. Sexy was also dynamic because it changed as the women matured. Sexy is embodied. It requires more than simply achieving just the look. It is experienced as multisensory. These women’s experiences and images of sexy differ from those presented in consumer culture. The research challenges the assumption that adult women can and do act on their knowledge that adverts are fantasy. It provides a new insight by highlighting transformation through the collaborative research process. These women were able to understand how they had been socialised into their meaning of sexy and make better informed choices. The research also highlighted the fine line these women walk between slutty and sexy due to the virgin/whore dichotomy. This research contributes in two ways: by suggesting future directions for the sexual education of adolescent girls and more research on young adult women, their experiences of sexuality, and the influences from consumer culture.

text: Embodying Sexy: Narrative Inquiry into Female Sexuality and Consumer Culture This research investigates female sexuality and consumer culture. It focuses on sexy as a form of expressing sexuality. The main objectives of this research were to understand what sexy meant to a group of young women and how they were socialised into their meaning through the consumer culture they live in. A narrative inquiry is used to understand these women’s embodied experience using collective biography and digital storytelling methods. A group of seven women participated in three group meetings to collectively research sexy. Collective biography and digital storytelling were layered upon one another to understand these women’s experiences of sexy and to enable collaborative analysis. Through the meetings the women progressed through the meetings in their comprehension of their own and the collective’s meaning of sexy. They did so through the creation of memory and digital stories. The research highlighted sexy as complex, contradictory, consequential, and dynamic for these women. Sexy was complex because it was embodied as multisensory. It was also contradictory because the images of sexy presented in consumer culture are not consistent with these women’s beliefs. The contrary nature of sexy resulted in envy, low self-esteem, and objectification. Sexy was also dynamic because it changed as the women matured. Sexy is embodied. It requires more than simply achieving just the look. It is experienced as multisensory. These women’s experiences and images of sexy differ from those presented in consumer culture. The research challenges the assumption that adult women can and do act on their knowledge that adverts are fantasy. It provides a new insight by highlighting transformation through the collaborative research process. These women were able to understand how they had been socialised into their meaning of sexy and make better informed choices. The research also highlighted the fine line these women walk between slutty and sexy due to the virgin/whore dichotomy. This research contributes in two ways: by suggesting future directions for the sexual education of adolescent girls and more research on young adult women, their experiences of sexuality, and the influences from consumer culture.

year: 2011

title: Prevalence of sociodemographic factors in a cohort of diabetes mellitus: A retrospective study

authors: Erandathi, Madurapperumage A.

subjects: complications of diabetes

abstract: Exploring the sociodemographic factors of a cohort is a vital phase in revealing significant aspects of the societal health status. The health care sector utilises the results of exploratory analysis of the sociodemographic nature to fulfil various purposes such as constructing health care policies, allocating adequate resources, imposing necessary medications and many more. A large and growing body of evidence shows that understanding the pervasiveness of sociodemographic factors: age, ethnicity, gender, reveal crucial information. Therefore, this study aims to disclose the knowledge through analysing the sociodemographic details of a New Zealand diabetes cohort. Diabetes mellitus is a chronic fatal disease that occurs due to the inability to control proper blood sugar levels, which causes multitudinous acute and chronic complications. Diabetes became a high prevalence disease in the region of Waikato. Analysing the cohort of diabetes patients associated with complications of diabetes illustrate the prevalence of complications of diabetes among the patients. The dataset of the study has been collected from the Waikato district health board. This study intends to report the initial scanning of the dataset profile with visualising the resulting patterns of sociodemographic details from the samples and their association with complications of diabetes. The Sankey diagrams use to visualise the results of exploratory data analysis. The resulted graphs of the data screening descriptively illustrate the characteristics of the cohort associated with demographic factors. Maori population shows higher percentage (0.68) of diabetes patients than the other ethnicities, while having narrower age expansion (13-95) with early onset age, compared to others (20-103). Males (0.61%) are more vulnerable to diabetes than females (0.55%). Additionally, hypertension and cardiovascular diseases are common among the diabetes patients’ in the Waikato region. Maori male population is highly vulnerable to diabetes. This study will be beneficial in constructing and analysing the demographical categories of the cohort to comparatively study the pervasiveness of the diseases among resulting classes.

text: Prevalence of sociodemographic factors in a cohort of diabetes mellitus: A retrospective study Exploring the sociodemographic factors of a cohort is a vital phase in revealing significant aspects of the societal health status. The health care sector utilises the results of exploratory analysis of the sociodemographic nature to fulfil various purposes such as constructing health care policies, allocating adequate resources, imposing necessary medications and many more. A large and growing body of evidence shows that understanding the pervasiveness of sociodemographic factors: age, ethnicity, gender, reveal crucial information. Therefore, this study aims to disclose the knowledge through analysing the sociodemographic details of a New Zealand diabetes cohort. Diabetes mellitus is a chronic fatal disease that occurs due to the inability to control proper blood sugar levels, which causes multitudinous acute and chronic complications. Diabetes became a high prevalence disease in the region of Waikato. Analysing the cohort of diabetes patients associated with complications of diabetes illustrate the prevalence of complications of diabetes among the patients. The dataset of the study has been collected from the Waikato district health board. This study intends to report the initial scanning of the dataset profile with visualising the resulting patterns of sociodemographic details from the samples and their association with complications of diabetes. The Sankey diagrams use to visualise the results of exploratory data analysis. The resulted graphs of the data screening descriptively illustrate the characteristics of the cohort associated with demographic factors. Maori population shows higher percentage (0.68) of diabetes patients than the other ethnicities, while having narrower age expansion (13-95) with early onset age, compared to others (20-103). Males (0.61%) are more vulnerable to diabetes than females (0.55%). Additionally, hypertension and cardiovascular diseases are common among the diabetes patients’ in the Waikato region. Maori male population is highly vulnerable to diabetes. This study will be beneficial in constructing and analysing the demographical categories of the cohort to comparatively study the pervasiveness of the diseases among resulting classes.

year: 2022