title: Applicability of contrarian strategy in the Bombay stock exchange

authors: Locke, Stuart

subjects: contrarian strategy

abstract: The application of contrarian strategies in the Bombay Stock Exchange (BSE) are examined in this paper, shedding further light on competing explanations underlying this anomaly. Three specific issues are investigated using several models. First, can a trader book a profit by employing a contrarian strategy? The test portfolio earned a contrarian profit of 74.40 per cent above the market return. Second, risk differences between Winner and Loser portfolios are found to be an independent phenomenon. Third, the size of the firm appears to play a vital role in explaining the overreaction hypothesis.

text: Applicability of contrarian strategy in the Bombay stock exchange The application of contrarian strategies in the Bombay Stock Exchange (BSE) are examined in this paper, shedding further light on competing explanations underlying this anomaly. Three specific issues are investigated using several models. First, can a trader book a profit by employing a contrarian strategy? The test portfolio earned a contrarian profit of 74.40 per cent above the market return. Second, risk differences between Winner and Loser portfolios are found to be an independent phenomenon. Third, the size of the firm appears to play a vital role in explaining the overreaction hypothesis.

year: 2009

title: The Analysis of Recreational Drugs in Biological Specimens Using Liquid Chromatography Mass Spectrometry

authors: Lucas, Natasha

subjects: Benzylpiperazine

abstract: In the last few years, the prevalence of legal party pills in New Zealand has risen dramatically. These pills contain new piperazine designer drugs, two of the more common being 1-benzylpiperazine (BZP) and m-trifluoromethylphenylpiperazine (TFMPP). This thesis describes an optimised LC-MS/MS method for the detection of BZP and TFMPP in whole blood, using an automated solid phase extraction (SPE) for sample clean-up. The method was validated on three different days using five replicate samples each day. The standard curve was linear from 7 - 7000 ng/mL for BZP and 10 - 10,000 ng/mL for TFMPP, with coefficients of variation (CV) below 10%, and accuracy greater than 90% for both drugs. The method was used to quantitate samples provided by the Medical Research Institute of New Zealand. Blood levels were used to show concentrations in the blood over time, and relate these to performance of subjects on a driving simulator. The study was stopped after 41% of the participants who received BZP and TFMPP had adverse reactions to the pills, including vomiting and migraines.

The LC-MS/MS method was also used to detect and quantitate methamphetamine, amphetamine, methylenedioxymethamphetamine, methylenedioxyamphetamine, morphine, codeine and 6-monoacetylmorphine in hair. The drugs were extracted from 20 mg of hair using hydrochloric acid in a water bath overnight, then purified using SPE. Validation on three days with five replicate samples gave coefficients of variation (CV) below 12% and acceptable accuracy for all drugs. The method was tested on three samples, previously reported by Environmental Science and Research (ESR) using gas chromatography mass spectrometry (GC-MS) giving results in good agreement.

This thesis describes a sensitive, accurate, reproducible LC-MS/MS method easily adapted to analyse drugs of abuse in different biological matrices. It demonstrates the versatility of LC-MS/MS and its applications in forensic work.

text: The Analysis of Recreational Drugs in Biological Specimens Using Liquid Chromatography Mass Spectrometry In the last few years, the prevalence of legal party pills in New Zealand has risen dramatically. These pills contain new piperazine designer drugs, two of the more common being 1-benzylpiperazine (BZP) and m-trifluoromethylphenylpiperazine (TFMPP). This thesis describes an optimised LC-MS/MS method for the detection of BZP and TFMPP in whole blood, using an automated solid phase extraction (SPE) for sample clean-up. The method was validated on three different days using five replicate samples each day. The standard curve was linear from 7 - 7000 ng/mL for BZP and 10 - 10,000 ng/mL for TFMPP, with coefficients of variation (CV) below 10%, and accuracy greater than 90% for both drugs. The method was used to quantitate samples provided by the Medical Research Institute of New Zealand. Blood levels were used to show concentrations in the blood over time, and relate these to performance of subjects on a driving simulator. The study was stopped after 41% of the participants who received BZP and TFMPP had adverse reactions to the pills, including vomiting and migraines.

The LC-MS/MS method was also used to detect and quantitate methamphetamine, amphetamine, methylenedioxymethamphetamine, methylenedioxyamphetamine, morphine, codeine and 6-monoacetylmorphine in hair. The drugs were extracted from 20 mg of hair using hydrochloric acid in a water bath overnight, then purified using SPE. Validation on three days with five replicate samples gave coefficients of variation (CV) below 12% and acceptable accuracy for all drugs. The method was tested on three samples, previously reported by Environmental Science and Research (ESR) using gas chromatography mass spectrometry (GC-MS) giving results in good agreement.

This thesis describes a sensitive, accurate, reproducible LC-MS/MS method easily adapted to analyse drugs of abuse in different biological matrices. It demonstrates the versatility of LC-MS/MS and its applications in forensic work.

year: 2008

title: Have you heard of Hinehau? A research journey of reclamation

authors: Wakefield, Sandy

subjects: Te Tai Tokerau

abstract: As the Māori political and cultural movement continues to grow, issues of representation, power, and control are critiqued by Māori minds.
After discovering a tribal myth about the mana of a woman known as Hinehau, a chain reaction of enquiry develops into the reclamation of tribal knowledge.
By investigating the historical context surrounding the narrative of Hinehau, her story transcends the fairy-tale myth she was confined to, and exposes the rendering down of her story.
Under the umbrella of Western science, European and Pākehā historical archives created an enduring legacy of “Māori myth” that is synonymous with falsehood. Through the assertation of tribal oral tradition and connecting our experiences to our missing histories, Hinehau is relocated. The Hinehau story renews through reconnecting to mātauranga Māori, Ngāpuhi kōrero tuku iho and the creativity of the researcher. In this process, her story renews.
With the guidance of hapū members, mentors, and a diversity of literature, the narrative of Hinehau becomes a part of a much larger inter-tribal narrative held within an ancestral landscape which is sometimes hard to recognise in whenua we no longer have tribal autonomy over. Our Indigenous identity is still under threat as we are still “othered” in our tribal lands. This work contributes to pushing the envelope of what it means to think, exist, and challenge as tangata whenua in Aotearoa, where traditional tribal roles have been minimalised in society, or disappeared through generations of the colonial project (Tuhiwai Smith, 2012).

text: Have you heard of Hinehau? A research journey of reclamation As the Māori political and cultural movement continues to grow, issues of representation, power, and control are critiqued by Māori minds.
After discovering a tribal myth about the mana of a woman known as Hinehau, a chain reaction of enquiry develops into the reclamation of tribal knowledge.
By investigating the historical context surrounding the narrative of Hinehau, her story transcends the fairy-tale myth she was confined to, and exposes the rendering down of her story.
Under the umbrella of Western science, European and Pākehā historical archives created an enduring legacy of “Māori myth” that is synonymous with falsehood. Through the assertation of tribal oral tradition and connecting our experiences to our missing histories, Hinehau is relocated. The Hinehau story renews through reconnecting to mātauranga Māori, Ngāpuhi kōrero tuku iho and the creativity of the researcher. In this process, her story renews.
With the guidance of hapū members, mentors, and a diversity of literature, the narrative of Hinehau becomes a part of a much larger inter-tribal narrative held within an ancestral landscape which is sometimes hard to recognise in whenua we no longer have tribal autonomy over. Our Indigenous identity is still under threat as we are still “othered” in our tribal lands. This work contributes to pushing the envelope of what it means to think, exist, and challenge as tangata whenua in Aotearoa, where traditional tribal roles have been minimalised in society, or disappeared through generations of the colonial project (Tuhiwai Smith, 2012).

year: 2021