Thomas Hewitt - Academia.edu (original) (raw)
Papers by Thomas Hewitt
2018 NASA/ESA Conference on Adaptive Hardware and Systems (AHS), 2018
Police require reliable facial-composite systems to help identify, arrest and convict criminals. ... more Police require reliable facial-composite systems to help identify, arrest and convict criminals. Recent developments, however, have allowed newer versions of the EvoFIT composite system to be made available for policing. The outcome is an online (cloudbased) version and a new system called Witness At Home, both using a simpler interface. Here, we formally compare these two versions to establish potential benefits to policing. Two experiments were conducted. In Experiment 1, participants observed a target identity for 1 minute and returned 4 hours (Witness At Home) or 24 hours (EvoFIT Online) to construct a composite from memory. No significant difference in composite accuracy was found. In Experiment 2, participants constructed a composite, 24-hours after seeing a target identity, using either EvoFIT Online or Witness At Home. A significant increase in accurate identification was found for EvoFIT Online, with some utility for the self-administered procedure, together indicating benefit for these newer systems plus some areas for development.
First Break, 2022
can be applied, and the figures need to be located before they can be classified. The automated p... more can be applied, and the figures need to be located before they can be classified. The automated pipeline is run on a user-specified dataset, which can consist of various file types, such as PDF, Word doc, Excel and CSV, and different image files, such as TIFF and PNG, etc. After initial ingestion, each of the components will be triggered in turn automatically as soon as its dependencies have completed successfully. There are two advantages to our automated approach. Metadata in the file path or manual labelling can only support a single high-level label. Using the pipeline, a much more granular classification of the contents can be achieved at a paragraph or page object level. Secondly, many documents can be processed much more quickly. As an illustration, a previous project took 16 people 14 months to complete, whereas a recent equivalent project using the pipeline took 2 people 1 month, including computing time. This is a hundred times faster! This article will focus on the machine learning steps in our pipeline, namely document layout analysis, image classification, named entity recognition and table cell classification. In recent times, machine learning has become increasingly dominated by deep learning models. These are data-hungry algorithms that need to be trained on large volumes of labelled input data. For
This thesis is an investigation into the value of design and the role of the exhibition designer ... more This thesis is an investigation into the value of design and the role of the exhibition designer in the development of museum exhibitions in Australia. Five research questions were posed and a combined approach of case studies, interviews, questionnaires, phenomenological analysis and an on-going literature review were adopted in producing this thesis. To address the lack of serious descriptive writing by museum exhibition designers, the views of six noted practicing designers (three in the UK and three in Australia) were sought and three case studies of Australian projects designed by three prominent Australian designers were undertaken. For the first time, a comprehensive look “behind the scenes” of the exhibition design process is presented. There is continuing debate about curatorship, education, electronic technology and social media but very little debate or discussion about exhibition design in museum literature. It is argued in this study that such debate needs to take place...
Modern interpreters of Paul, confronted with the ubiquitous and enigmatic phrase “in Christ,” hav... more Modern interpreters of Paul, confronted with the ubiquitous and enigmatic phrase “in Christ,” have generally ignored “messiah” as a determinative category for explaining the idiom. This is due in part to a scholarly tradition which holds that Paul did not use χριστός with its conventional sense of “messiah.” However, recent scholarship on early messianology, emphasizing the creative interpretation of scripture in the production of messiah texts, has found that Paul’s usage follows the conventions of ancient Jewish messiah language. Drawing upon this revisionist model, I argue that Paul’s use of the phrase ἐν χριστῷ and its variants is explicable in terms of his messianic re-appropriation of authoritative literary traditions. Put differently, Paul’s “in Christ” language is an innovation that nevertheless follows the customs of ancient Jewish messiah speculation. Chapter one, recounting modern treatments of “participationism” and associated language in Paul, illustrates a virtually uniform neglect of messiahship in describing his “in Christ” language. Chapter two reviews the rise of revisionist accounts of ancient Jewish messiah language which eschew the totalizing concept of “the messianic idea” and emphasize instead linguistic conventions common to messiah texts: the creative re-appropriation of scripture, the reuse of messiah syntagms in new literary contexts, and the frequent recourse to a relatively small pool of literary sources to generate conceptions of messiahship. Chapter three, a study of Paul’s messianic interpretation of the promises concerning Abraham’s seed, concludes that the phraseology “in Christ” derives from the Jewish scriptural words “in your seed,” and that the use of the idiom to denote Christ’s instrumentality in God’s actions and the identification of people as believers arises from this tradition. Chapter four, a study of Paul’s messianic interpretation of the victory of the Danielic heavenly man, concludes that Paul’s concept of solidarity with the messiah is based on that between Daniel’s “one like a son of man” and the people of God and is often expressed with the phrase “in Christ.” Finally, chapter five is a two-part catalog of “in Christ” language in Paul’s letters, part one consisting of a syntactical analysis of every instance and part two a conceptual analysis of every instance in light of the findings of chapters three and four. In sum, Paul’s “in Christ” language, like ancient Jewish messiah language generally, is the product of its author’s creative interpretative enterprise to understand and explain his messiah
International railway journal, 2016
Since the line opened in 2011, Saudi Arabia's North-South Railway's rolling stock has suf... more Since the line opened in 2011, Saudi Arabia's North-South Railway's rolling stock has suffered from severe wheel-wear issues. Lessons for the design of future desert heavy-haul networks are provided by the success in overcoming this problem, as explained in this article.
We studied the kinetics of the reaction between cholesterol and sulfuric acid in acetic acid-acet... more We studied the kinetics of the reaction between cholesterol and sulfuric acid in acetic acid-acetic anhydride medium. Results have been used to establish near-optimal conditions for the fast kinetic determination of cholesterol in serum. The reaction rate measured during the first 20 s of the reaction is proportional to cholesterol concentration. There is good agreement (<2% deviation) between pseudo-f irstorder rate constants for cholesterol standards and sera. Recoveries of standard cholesterol added to sera range from 99% to 104% (average, 100.7%). Values for serum cholesterol by this kinetic determination tend to be somewhat lower than equilibrium values reported by local hospital laboratories. Whether bilirubin interferes depends on reaction conditions; under optimal conditions, each milligram of bilirubin is kinetically equivalent to about 1 mg of apparent cholesterol. Kinetic data are included to show how results are degraded by operating under nonoptimal conditions, and c...
The impact of introduced mammalian predators on indigenous vertebrates is relatively well documen... more The impact of introduced mammalian predators on indigenous vertebrates is relatively well documented, however the general responses of indigenous invertebrate communities is less well known. Many indigenous invertebrates, particularly the large flightless species such as those in the genus Deinacrida (Orthoptera) and Anagotus (Curculionidae) have been extirpated from much of their range due largely to the impacts of introduced predators. Despite these well-known examples very little is known about the general impact of introduced predators on invertebrate communities. Beginning in 2012 pitfall traps and artificial wētā motels were established across seven study sites in the Aorangi and Remutaka ranges east of Wellington alternately baited with squid and monitored two to three times annually. Mammal tracking took place in the form of tracking tunnels giving three mammal indexes for rats (Rattus rattus), mice (Mus musculus) and hedgehogs (Erinaceus europeus). Cavity dwelling wētā in w...
Physical Review Letters, 2020
We experimentally realize a method to produce non-equilibrium Bose Einstein condensates with cond... more We experimentally realize a method to produce non-equilibrium Bose Einstein condensates with condensed fraction exceeding those of equilibrium samples with the same parameters. To do this, we immerse an ultracold Bose gas of 87 Rb in a cloud of 39 K with substantially higher temperatures, providing a controlled source of dissipation. By combining the action of the dissipative environment with evaporative cooling, we are able to progressively distil the non-equilibrium Bose-Einstein condensate from the thermal cloud. We show that by increasing the strength of the dissipation it is even possible to produce condensates above the critical temperature. We finally demonstrate that our out-of-equilibrium samples are long-lived and do not reach equilibrium in a time that is accessible for our experiment. Due to its high degree of control, our distillation process is a promising tool for the engineering of open quantum systems.
VESTNIK KHIRURGII IMENI I.I.GREKOVA, Jun 11, 2018
Clinical Chemistry, 1973
We studied the kinetics of the reaction between cholesterol and sulfuric acid in acetic acid-acet... more We studied the kinetics of the reaction between cholesterol and sulfuric acid in acetic acid-acetic anhydride medium. Results have been used to establish near-optimal conditions for the fast kinetic determination of cholesterol in serum. The reaction rate measured during the first 20 s of the reaction is proportional to cholesterol concentration. There is good agreement (<2% deviation) between pseudo-first-order rate constants for cholesterol standards and sera. Recoveries of standard cholesterol added to sera range from 99% to 104% (average, 100.7%). Values for serum cholesterol by this kinetic determination tend to be somewhat lower than equilibrium values reported by local hospital laboratories. Whether bilirubin interferes depends on reaction conditions; under optimal conditions, each milligram of bilirubin is kinetically equivalent to about 1 mg of apparent cholesterol. Kinetic data are included to show how results are degraded by operating under nonoptimal conditions, and c...
Clinical Chemistry, 1975
We have applied a comprehensive theory of photometric errors to the design and evaluation of an i... more We have applied a comprehensive theory of photometric errors to the design and evaluation of an inexpensive stabilized photometer. The photometer is described in terms of a group of modules, the characteristics of which are described in terms of their effect on specific error coefficients. Procedures described in this paper show how the principles described earlier [Clin. Chem. 20, 1028 (1974)] can be used to optimize the design of new instrumentation or to evaluate the performance of existing instrumentation. Chemical data are included to verify the agreement between predicted and experimental results
Clinical Chemistry, 1975
Quantitative data reported in an earlier paper have been used to evaluate kinetic equations for t... more Quantitative data reported in an earlier paper have been used to evaluate kinetic equations for the reaction of cholesterol with sulfuric acid in acetic acid—acetic anhydride medium. The equations satisfy experimental observations to within 6% over a wide range of experimental conditions. The equations have been used to justify mathematically the empirically developed measurement procedures described earlier and to predict the errors that can be expected for time and temperature uncertainties.
Notre Dame Journal of Formal Logic, 2018
New Testament Studies, 2019
In Gal 3.16 Paul asserts that Abraham's seed is the messiah. While some have suggested that t... more In Gal 3.16 Paul asserts that Abraham's seed is the messiah. While some have suggested that the rationale for this assertion is Paul's identification of…
2018 NASA/ESA Conference on Adaptive Hardware and Systems (AHS), 2018
Police require reliable facial-composite systems to help identify, arrest and convict criminals. ... more Police require reliable facial-composite systems to help identify, arrest and convict criminals. Recent developments, however, have allowed newer versions of the EvoFIT composite system to be made available for policing. The outcome is an online (cloudbased) version and a new system called Witness At Home, both using a simpler interface. Here, we formally compare these two versions to establish potential benefits to policing. Two experiments were conducted. In Experiment 1, participants observed a target identity for 1 minute and returned 4 hours (Witness At Home) or 24 hours (EvoFIT Online) to construct a composite from memory. No significant difference in composite accuracy was found. In Experiment 2, participants constructed a composite, 24-hours after seeing a target identity, using either EvoFIT Online or Witness At Home. A significant increase in accurate identification was found for EvoFIT Online, with some utility for the self-administered procedure, together indicating benefit for these newer systems plus some areas for development.
First Break, 2022
can be applied, and the figures need to be located before they can be classified. The automated p... more can be applied, and the figures need to be located before they can be classified. The automated pipeline is run on a user-specified dataset, which can consist of various file types, such as PDF, Word doc, Excel and CSV, and different image files, such as TIFF and PNG, etc. After initial ingestion, each of the components will be triggered in turn automatically as soon as its dependencies have completed successfully. There are two advantages to our automated approach. Metadata in the file path or manual labelling can only support a single high-level label. Using the pipeline, a much more granular classification of the contents can be achieved at a paragraph or page object level. Secondly, many documents can be processed much more quickly. As an illustration, a previous project took 16 people 14 months to complete, whereas a recent equivalent project using the pipeline took 2 people 1 month, including computing time. This is a hundred times faster! This article will focus on the machine learning steps in our pipeline, namely document layout analysis, image classification, named entity recognition and table cell classification. In recent times, machine learning has become increasingly dominated by deep learning models. These are data-hungry algorithms that need to be trained on large volumes of labelled input data. For
This thesis is an investigation into the value of design and the role of the exhibition designer ... more This thesis is an investigation into the value of design and the role of the exhibition designer in the development of museum exhibitions in Australia. Five research questions were posed and a combined approach of case studies, interviews, questionnaires, phenomenological analysis and an on-going literature review were adopted in producing this thesis. To address the lack of serious descriptive writing by museum exhibition designers, the views of six noted practicing designers (three in the UK and three in Australia) were sought and three case studies of Australian projects designed by three prominent Australian designers were undertaken. For the first time, a comprehensive look “behind the scenes” of the exhibition design process is presented. There is continuing debate about curatorship, education, electronic technology and social media but very little debate or discussion about exhibition design in museum literature. It is argued in this study that such debate needs to take place...
Modern interpreters of Paul, confronted with the ubiquitous and enigmatic phrase “in Christ,” hav... more Modern interpreters of Paul, confronted with the ubiquitous and enigmatic phrase “in Christ,” have generally ignored “messiah” as a determinative category for explaining the idiom. This is due in part to a scholarly tradition which holds that Paul did not use χριστός with its conventional sense of “messiah.” However, recent scholarship on early messianology, emphasizing the creative interpretation of scripture in the production of messiah texts, has found that Paul’s usage follows the conventions of ancient Jewish messiah language. Drawing upon this revisionist model, I argue that Paul’s use of the phrase ἐν χριστῷ and its variants is explicable in terms of his messianic re-appropriation of authoritative literary traditions. Put differently, Paul’s “in Christ” language is an innovation that nevertheless follows the customs of ancient Jewish messiah speculation. Chapter one, recounting modern treatments of “participationism” and associated language in Paul, illustrates a virtually uniform neglect of messiahship in describing his “in Christ” language. Chapter two reviews the rise of revisionist accounts of ancient Jewish messiah language which eschew the totalizing concept of “the messianic idea” and emphasize instead linguistic conventions common to messiah texts: the creative re-appropriation of scripture, the reuse of messiah syntagms in new literary contexts, and the frequent recourse to a relatively small pool of literary sources to generate conceptions of messiahship. Chapter three, a study of Paul’s messianic interpretation of the promises concerning Abraham’s seed, concludes that the phraseology “in Christ” derives from the Jewish scriptural words “in your seed,” and that the use of the idiom to denote Christ’s instrumentality in God’s actions and the identification of people as believers arises from this tradition. Chapter four, a study of Paul’s messianic interpretation of the victory of the Danielic heavenly man, concludes that Paul’s concept of solidarity with the messiah is based on that between Daniel’s “one like a son of man” and the people of God and is often expressed with the phrase “in Christ.” Finally, chapter five is a two-part catalog of “in Christ” language in Paul’s letters, part one consisting of a syntactical analysis of every instance and part two a conceptual analysis of every instance in light of the findings of chapters three and four. In sum, Paul’s “in Christ” language, like ancient Jewish messiah language generally, is the product of its author’s creative interpretative enterprise to understand and explain his messiah
International railway journal, 2016
Since the line opened in 2011, Saudi Arabia's North-South Railway's rolling stock has suf... more Since the line opened in 2011, Saudi Arabia's North-South Railway's rolling stock has suffered from severe wheel-wear issues. Lessons for the design of future desert heavy-haul networks are provided by the success in overcoming this problem, as explained in this article.
We studied the kinetics of the reaction between cholesterol and sulfuric acid in acetic acid-acet... more We studied the kinetics of the reaction between cholesterol and sulfuric acid in acetic acid-acetic anhydride medium. Results have been used to establish near-optimal conditions for the fast kinetic determination of cholesterol in serum. The reaction rate measured during the first 20 s of the reaction is proportional to cholesterol concentration. There is good agreement (<2% deviation) between pseudo-f irstorder rate constants for cholesterol standards and sera. Recoveries of standard cholesterol added to sera range from 99% to 104% (average, 100.7%). Values for serum cholesterol by this kinetic determination tend to be somewhat lower than equilibrium values reported by local hospital laboratories. Whether bilirubin interferes depends on reaction conditions; under optimal conditions, each milligram of bilirubin is kinetically equivalent to about 1 mg of apparent cholesterol. Kinetic data are included to show how results are degraded by operating under nonoptimal conditions, and c...
The impact of introduced mammalian predators on indigenous vertebrates is relatively well documen... more The impact of introduced mammalian predators on indigenous vertebrates is relatively well documented, however the general responses of indigenous invertebrate communities is less well known. Many indigenous invertebrates, particularly the large flightless species such as those in the genus Deinacrida (Orthoptera) and Anagotus (Curculionidae) have been extirpated from much of their range due largely to the impacts of introduced predators. Despite these well-known examples very little is known about the general impact of introduced predators on invertebrate communities. Beginning in 2012 pitfall traps and artificial wētā motels were established across seven study sites in the Aorangi and Remutaka ranges east of Wellington alternately baited with squid and monitored two to three times annually. Mammal tracking took place in the form of tracking tunnels giving three mammal indexes for rats (Rattus rattus), mice (Mus musculus) and hedgehogs (Erinaceus europeus). Cavity dwelling wētā in w...
Physical Review Letters, 2020
We experimentally realize a method to produce non-equilibrium Bose Einstein condensates with cond... more We experimentally realize a method to produce non-equilibrium Bose Einstein condensates with condensed fraction exceeding those of equilibrium samples with the same parameters. To do this, we immerse an ultracold Bose gas of 87 Rb in a cloud of 39 K with substantially higher temperatures, providing a controlled source of dissipation. By combining the action of the dissipative environment with evaporative cooling, we are able to progressively distil the non-equilibrium Bose-Einstein condensate from the thermal cloud. We show that by increasing the strength of the dissipation it is even possible to produce condensates above the critical temperature. We finally demonstrate that our out-of-equilibrium samples are long-lived and do not reach equilibrium in a time that is accessible for our experiment. Due to its high degree of control, our distillation process is a promising tool for the engineering of open quantum systems.
VESTNIK KHIRURGII IMENI I.I.GREKOVA, Jun 11, 2018
Clinical Chemistry, 1973
We studied the kinetics of the reaction between cholesterol and sulfuric acid in acetic acid-acet... more We studied the kinetics of the reaction between cholesterol and sulfuric acid in acetic acid-acetic anhydride medium. Results have been used to establish near-optimal conditions for the fast kinetic determination of cholesterol in serum. The reaction rate measured during the first 20 s of the reaction is proportional to cholesterol concentration. There is good agreement (<2% deviation) between pseudo-first-order rate constants for cholesterol standards and sera. Recoveries of standard cholesterol added to sera range from 99% to 104% (average, 100.7%). Values for serum cholesterol by this kinetic determination tend to be somewhat lower than equilibrium values reported by local hospital laboratories. Whether bilirubin interferes depends on reaction conditions; under optimal conditions, each milligram of bilirubin is kinetically equivalent to about 1 mg of apparent cholesterol. Kinetic data are included to show how results are degraded by operating under nonoptimal conditions, and c...
Clinical Chemistry, 1975
We have applied a comprehensive theory of photometric errors to the design and evaluation of an i... more We have applied a comprehensive theory of photometric errors to the design and evaluation of an inexpensive stabilized photometer. The photometer is described in terms of a group of modules, the characteristics of which are described in terms of their effect on specific error coefficients. Procedures described in this paper show how the principles described earlier [Clin. Chem. 20, 1028 (1974)] can be used to optimize the design of new instrumentation or to evaluate the performance of existing instrumentation. Chemical data are included to verify the agreement between predicted and experimental results
Clinical Chemistry, 1975
Quantitative data reported in an earlier paper have been used to evaluate kinetic equations for t... more Quantitative data reported in an earlier paper have been used to evaluate kinetic equations for the reaction of cholesterol with sulfuric acid in acetic acid—acetic anhydride medium. The equations satisfy experimental observations to within 6% over a wide range of experimental conditions. The equations have been used to justify mathematically the empirically developed measurement procedures described earlier and to predict the errors that can be expected for time and temperature uncertainties.
Notre Dame Journal of Formal Logic, 2018
New Testament Studies, 2019
In Gal 3.16 Paul asserts that Abraham's seed is the messiah. While some have suggested that t... more In Gal 3.16 Paul asserts that Abraham's seed is the messiah. While some have suggested that the rationale for this assertion is Paul's identification of…