title: Development of an HPLC method to analyze four veterinary antibiotics in soils and aqueous media and validation through fate studies

authors: Srinivasan, Prakash

subjects: HPLC

abstract: A simple, yet robust analytical method was developed to detect and quantify three sulfonamides (SA), namely sulfamethoxazole (SMO), sulfachloropyridazine (SCP), and sulfamethazine (SM), and a macrolide tylosin (TT) in aqueous (calcium chloride and leachate solutions) and solid (agricultural soils) matrices using high performance liquid chromatography and ultra violet detection at 290 nm (TT) and 275 nm (SA) respectively. Chromatography was performed using a Phenomenex Onyx Monolithic C-18 column for TT and a C-18 Luna column for sulfonamides as single analytes eluted isocratically with a mobile phase consisting of acetonitrile: trifluoroacetic acid: tetrahydrofuran in the ratio 22.5:68:9.5 for TT, 40:55:5 for SMO, 32:63:5 for SCP and 31:64:5 for SM (v/v) at 1.0 mL min(-1) and an injection volume of 20 mu L. A gradient method to detect all three sulfonamides in a single run was also developed. The soil residue analysis consisted of extraction with dichloromethane and pre-concentration steps as the aqueous phase was measured directly. The limits of detection at an S/N (signal: noise) ratio of 3 were 20.0 mu g L-1 and 50 mu g L-1 for all sulfonamides and tylosin respectively. The average recoveries for all sulfonamides and tylosin in aqueous matrices ranged from 95 to 105% across the six concentrations investigated. Recoveries from the soils were slightly lower for sulfonamides and tylosin. The isocratic method was used to determine the sorption and degradation of sulfonamides in soils, while the gradient method was used to determine degradation kinetics and leachate concentrations in soils and aqueous systems.

text: Development of an HPLC method to analyze four veterinary antibiotics in soils and aqueous media and validation through fate studies A simple, yet robust analytical method was developed to detect and quantify three sulfonamides (SA), namely sulfamethoxazole (SMO), sulfachloropyridazine (SCP), and sulfamethazine (SM), and a macrolide tylosin (TT) in aqueous (calcium chloride and leachate solutions) and solid (agricultural soils) matrices using high performance liquid chromatography and ultra violet detection at 290 nm (TT) and 275 nm (SA) respectively. Chromatography was performed using a Phenomenex Onyx Monolithic C-18 column for TT and a C-18 Luna column for sulfonamides as single analytes eluted isocratically with a mobile phase consisting of acetonitrile: trifluoroacetic acid: tetrahydrofuran in the ratio 22.5:68:9.5 for TT, 40:55:5 for SMO, 32:63:5 for SCP and 31:64:5 for SM (v/v) at 1.0 mL min(-1) and an injection volume of 20 mu L. A gradient method to detect all three sulfonamides in a single run was also developed. The soil residue analysis consisted of extraction with dichloromethane and pre-concentration steps as the aqueous phase was measured directly. The limits of detection at an S/N (signal: noise) ratio of 3 were 20.0 mu g L-1 and 50 mu g L-1 for all sulfonamides and tylosin respectively. The average recoveries for all sulfonamides and tylosin in aqueous matrices ranged from 95 to 105% across the six concentrations investigated. Recoveries from the soils were slightly lower for sulfonamides and tylosin. The isocratic method was used to determine the sorption and degradation of sulfonamides in soils, while the gradient method was used to determine degradation kinetics and leachate concentrations in soils and aqueous systems.

year: 2012

title: IP round-up: Recent decisions from the courts (May 2008)

authors: Kingsbury, Anna

subjects: law

abstract: This was a trade mark case in which the plaintiff, Portacom New Zealand Ltd, sought an interim injunction and orders requiring that the defendants remove "Port A Room" from all marketing materials and that any such branded materials be delivered up.

text: IP round-up: Recent decisions from the courts (May 2008) This was a trade mark case in which the plaintiff, Portacom New Zealand Ltd, sought an interim injunction and orders requiring that the defendants remove "Port A Room" from all marketing materials and that any such branded materials be delivered up.

year: 2008-05

title: Lost in translation or lack of nuance? Perception of (near-)synonymy of common te reo Māori loanwords in New Zealand English

authors: Pohl, Alexander

abstract: Ongoing contact between languages and their speakers inevitably leads to a flow of words being borrowed from one language into another. Research in the field of language contact has established and documented the kinds of borrowed words that stick in their recipient language (Haspelmath 2009; Winford 2010). However, one question that has received comparatively less attention is how a newly adopted loanword relates to the structure of the existing lexicon it enters. In recent years, language contact research has thus seen a paradigm shift towards an onomasiological perspective (see Anderson et al. 2017; Crombez et al. 2022; Zenner et al. 2023). Within this approach, most studies looking at lexical variation between loanwords and their (near-)synonyms employ corpus linguistics methods (e.g. Onysko & Winter-Froemel 2011; Soares da Silva 2013). However, there is variation in how these corpus studies have investigated loanword meanings, and, to our knowledge, there has been almost no experimental research focussed specifically on the relationship between loanwords and their (near-)synonyms to date. This project presents a large-scale experimental approach from a case-study examining Māori loanwords borrowed into New Zealand English (NZE). NZE presents an unusual language contact situation because it involves a dominant language (NZE) receiving an exceptionally high amount of lexical material (words and phrases) from an Indigenous language: Māori. Further adding to the uniqueness of this contact situation is the fact that only a fraction of the population (<10%) speaks Māori fluently (Statistics New Zealand 2019). Nonetheless, Māori loanwords are ubiquitous, salient, and probably still increasing within the NZE lexicon (Macalister 2007; Trye et al. 2019). One important dimension of this set of borrowings are their semantic characteristics, which straddle three main classes of words: flora and fauna (mānuka ‘tea tree’), material culture (maunga ‘mountain’) and social culture (mana ‘power’).  Here, we report on a Qualtrics experiment devised to probe the perceived relationship between 60 Māori loanwords and their NZE equivalents, as ascertained from published sources. The synonymy judgements were elicited for pairs (e.g. whānau – family) using an analogue slider (ranging from 0 = non-synonymous to 100 = fully synonymous). Data was collected using a three-tiered questionnaire: 1) assessing synonymy of loanwords; 2) eliciting strategies for semantic assessments; and 3) collating background information about participants. Following cleaning and exclusions, the dataset showed a skew towards female participants, and for this reason, we focus our statistical analysis on the core sample containing (n = 170) young women (18-24 years). The results of the synonymy judgements analysis consist of qualitative inspections of box plots in relation to the semantic characteristics of Māori words in question, as well as sociodemographic variables of interest, specifically: years lived in Aotearoa NZ, and a composite score capturing exposure to and attitude towards Māori (TRMO). Preliminary findings suggest that many people think Māori loanwords are (highly) synonymous with NZE lexical alternatives. Our regression analyses exhibit evidence that years lived in Aotearoa NZ (p = 0.0054) and TRMO (p = 8.26e-10) can predict knowledge of Māori words. No statistically significant evidence was found for any predictors regarding the scores of the synonymy judgements; instead, we found that the random effects account for most of the variation. This is indicative of idiosyncratic loanword behaviour, in line with situations where variation is in-flux. These findings will be complemented by qualitative analyses of comments provided by participants in the open answer section (2). The talk will conclude with a summary of contributions to the general understanding of loanword meanings and contact-induced lexical change.

text: Lost in translation or lack of nuance? Perception of (near-)synonymy of common te reo Māori loanwords in New Zealand English Ongoing contact between languages and their speakers inevitably leads to a flow of words being borrowed from one language into another. Research in the field of language contact has established and documented the kinds of borrowed words that stick in their recipient language (Haspelmath 2009; Winford 2010). However, one question that has received comparatively less attention is how a newly adopted loanword relates to the structure of the existing lexicon it enters. In recent years, language contact research has thus seen a paradigm shift towards an onomasiological perspective (see Anderson et al. 2017; Crombez et al. 2022; Zenner et al. 2023). Within this approach, most studies looking at lexical variation between loanwords and their (near-)synonyms employ corpus linguistics methods (e.g. Onysko & Winter-Froemel 2011; Soares da Silva 2013). However, there is variation in how these corpus studies have investigated loanword meanings, and, to our knowledge, there has been almost no experimental research focussed specifically on the relationship between loanwords and their (near-)synonyms to date. This project presents a large-scale experimental approach from a case-study examining Māori loanwords borrowed into New Zealand English (NZE). NZE presents an unusual language contact situation because it involves a dominant language (NZE) receiving an exceptionally high amount of lexical material (words and phrases) from an Indigenous language: Māori. Further adding to the uniqueness of this contact situation is the fact that only a fraction of the population (<10%) speaks Māori fluently (Statistics New Zealand 2019). Nonetheless, Māori loanwords are ubiquitous, salient, and probably still increasing within the NZE lexicon (Macalister 2007; Trye et al. 2019). One important dimension of this set of borrowings are their semantic characteristics, which straddle three main classes of words: flora and fauna (mānuka ‘tea tree’), material culture (maunga ‘mountain’) and social culture (mana ‘power’).  Here, we report on a Qualtrics experiment devised to probe the perceived relationship between 60 Māori loanwords and their NZE equivalents, as ascertained from published sources. The synonymy judgements were elicited for pairs (e.g. whānau – family) using an analogue slider (ranging from 0 = non-synonymous to 100 = fully synonymous). Data was collected using a three-tiered questionnaire: 1) assessing synonymy of loanwords; 2) eliciting strategies for semantic assessments; and 3) collating background information about participants. Following cleaning and exclusions, the dataset showed a skew towards female participants, and for this reason, we focus our statistical analysis on the core sample containing (n = 170) young women (18-24 years). The results of the synonymy judgements analysis consist of qualitative inspections of box plots in relation to the semantic characteristics of Māori words in question, as well as sociodemographic variables of interest, specifically: years lived in Aotearoa NZ, and a composite score capturing exposure to and attitude towards Māori (TRMO). Preliminary findings suggest that many people think Māori loanwords are (highly) synonymous with NZE lexical alternatives. Our regression analyses exhibit evidence that years lived in Aotearoa NZ (p = 0.0054) and TRMO (p = 8.26e-10) can predict knowledge of Māori words. No statistically significant evidence was found for any predictors regarding the scores of the synonymy judgements; instead, we found that the random effects account for most of the variation. This is indicative of idiosyncratic loanword behaviour, in line with situations where variation is in-flux. These findings will be complemented by qualitative analyses of comments provided by participants in the open answer section (2). The talk will conclude with a summary of contributions to the general understanding of loanword meanings and contact-induced lexical change.

year: 2024