Confirmation Reports >> Introduction
The Introduction contextualises the proposed research by outlining the background to the research, the approach adopted to achieve the objectives of the study and its expected contribution to the field. A well-written Introduction provides the reader with a good understanding of the study, its aims, and its theoretical basis and rationalises the research approach that is proposed.
Pre-reading activity
The following extract is the Introduction to a Confirmation Report in Electrical Engineering.
Use the palette below to colour the sentences which provide the following information.
Click on the button ‘Check answers’ to see the answer. Click on the numbers in superscript in the answer key to see the answers explained.
- A definition
- The research topic
- The research gap
- An overview of the information included in the report
- The objective of the proposed study
- The expected contribution of the proposed study
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An Introduction to a Confirmation Report needs to include all information that serves to contextualise the proposed research. This would normally include the following aspects:
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The ‘purpose’ of an Introduction to a Confirmation Report refers to its communicative function –to present a concise picture of the proposed research and justify its methodological approach as a viable solution to the research gap it aims to address. It allows the Confirmation Panel and supervisor to understand the background to the study and the suitability of the proposed research for a doctoral thesis. In order to achieve this purpose, an Introduction needs to introduce the research problem, its proposed solution and a justification of why the solution is appropriate. An Introduction for a Confirmation Report has six main communicative functions. To fulfil these functions, the author needs to complete the six moves as outlined below.
General | |
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Specific |
Note: Although the Introduction to a Confirmation Report is normally expected to include the above six moves, in some Engineering disciplines the contribution of the study and the organisation of the report (the last two moves) are often not included. Candidates are advised to check with their supervisor and follow the disciplinary conventions in their field.
Activity 1
Read the following extract from a Confirmation Report in Manufacturing Engineering and Engineering Management. Select the sentences from the extract that fulfil each of the six main communicative functions listed in Column A of the table below and drop them into the relevant space in Column B.
Note: Sections of the text deleted due to space constraints are marked […].
Column A : Communicative Functions | Column B: Section of extract |
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Adapted from: D. Chalasani. “Microstructure and Texture Evolution During Hot Working of Mg-3Sn-2Ca (TX32) Alloys With Micro Additions of ‘Al’ and ‘Si’”. Dept. of Manuf. Eng. And Eng. Mgmt., City University of Hong Kong, (May 2011).
However, Mg alloys have poor high temperature properties due to the thermal instability of microstructure [1]. The most common way of improving the elevated temperature properties is the formation of thermally stable precipitates or dispersoids along the grain boundaries to resist the deformation by grain boundary sliding [2]. The most effective alloying elements for such purpose are rare earth elements, which result in a significant improvement in the elevated temperature properties [3]. However, these elements are expensive, limiting widespread application of such alloys.
‘Sn’ has several characteristics suitable as an alloying element for elevated temperature applications: […]. The Mg–Ca system is more promising than the Mg–RE (rare earth) based alloys for developing low-cost creep resistant magnesium alloys. […]. Also, many of the wrought alloys like Mg-3Al-1Zn have inferior corrosion and creep properties and to improve these two properties newer Mg-Sn-Ca alloys (TX series) are being developed [6-8]. In this system, ‘Sn’ forms a solid solution with Mg and imparts corrosion resistance while ‘Ca’ enhances high temperature creep strength by forming CaMgSn intermetallic particles.
However, there is a need to strengthen these alloys further to make them a candidate material for structural applications.
Mg alloys have a great potential for high performance structural applications
Not stated explicitly, but implied in the research gap (‘make them {Mg alloys} a candidate material for structural applications’).
Not included
Therefore, alloying with aluminium and silicon is considered to be attractive since Al causes solid solution strengthening of Mg. […] With this in view, Mg-Sn-Ca-Al-Si alloys have been designed and chosen for the present investigation.
The aim of the present research is to evaluate the compressive strength and hot working characteristics of the TX32 alloys to understand the effect of the combined additions of Al and Si to TX alloys. […] It also aims to understand how the final microstructure develops in the material and examines the effect of texture components on formability of TX series alloys.
Answer Key
Click on the numbers in superscript to see their explanations.
Column A : Communicative Functions |
Column B: Section of extract |
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Mg alloys Note 1 have a great potential for high performance structural applications Note 2 |
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However, Mg alloys have poor high temperature properties due to the thermal instability of microstructure [1]. The most common way of improving the elevated temperature properties is the formation of thermally stable precipitates or dispersoids along the grain boundaries to resist the deformation by grain boundary sliding [2]. The most effective alloying elements for such purpose are rare earth elements, which result in a significant improvement in the elevated temperature properties [3]. However, these elements are expensive, limiting widespread application of such alloys. ‘Sn’ has several characteristics suitable as an alloying element for elevated temperature applications: […]. The Mg–Ca system is more promising than the Mg–RE (rare earth) based alloys for developing low-cost creep resistant magnesium alloys. […]. Also, many of the wrought alloys like Mg-3Al-1Zn have inferior corrosion and creep properties and to improve these two properties newer Mg-Sn-Ca alloys (TX series) are being developed [6-8]. In this system, ‘Sn’ forms a solid solution with Mg and imparts corrosion resistance while ‘Ca’ enhances high temperature creep strength by forming CaMgSn intermetallic particles. Note 3 |
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However, there is a need to strengthen these alloys further to make them a candidate material for structural applications. |
Therefore, alloying with aluminium and silicon is considered to be attractive since Al causes solid solution strengthening of Mg. […] With this in view, Mg-Sn-Ca-Al-Si alloys have been designed and chosen for the present investigation. Note 5 The aim of the present research is to evaluate the compressive strength and hot working characteristics of the TX32 alloys to understand the effect of the combined additions of Al and Si to TX alloys. […] It also aims to understand how the final microstructure develops in the material and examines the effect of texture components on formability of TX series alloys. Note 4 |
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Not stated explicitly, but implied in the research gap (‘make them {Mg alloys} a candidate material for structural applications’). |
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Not included |
The structure of an Introduction to a Confirmation Report is determined by the fundamental purpose of this section, which is to contextualise the proposed research. In order to achieve this purpose, the writer needs to progress from providing general information to including more specific information by making a series of communicative ‘moves’. In each move, a specific type of information is provided. Together, these moves contribute towards developing the structural framework of the Introduction. The six moves and the information they contribute are outlined below and illustrated with examples from Confirmation Reports in Engineering.
Note: Sections of the text deleted due to space constraints are marked […].
Move |
Type of information provided (Structural component) |
Example extract |
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The research topic and its importance |
Research using active devices [1]-[3] to replace the conventional ferrite circulator has been of interest. Although these active quasi-circulators are not quite a complete active circulator, they have many possible future applications such as […].* |
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Perspectives in existing research relevant to the topic to create a knowledge base to situate the current study. |
One of the most important applications of TC-PCF is a mode coupler [8], with a short beat length of a few millimeters, a compact fiber-based multiplexer/demultiplexer. Due to the two cores in the centre, Mach –Zehnder interferometer (MZI) can be implemented when […]. In 2007, Kim et al demonstrated an in-line MZI based on TC-PCF and conducted strain, temperature and bending loss measurements […].** |
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What existing research on the topic has not studied up to the current time |
With the drive towards competition with multi-operators and the introduction of the third generation mobile (3G) radio, multi-band power amplifiers with high linearity are needed. *** |
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The aims of the study and how achieving them contributes towards filling the research gap |
In sum, the goal of this project is to enhance the expressiveness of automatic summaries by instilling coherence into the mainstream summarization frameworks on different levels, from the shallowest post-extractive ordering to the deepest coherence-based revision. **** |
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The new knowledge the study will add to the field |
It is expected that the output quality of such coherence-adapted or coherence-based systems will be significantly improved for various text genres, both news and beyond. **** |
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The order of information in the report and how it is organised |
The rest of the report is organized as follows. Section 2 is a comprehensive review of related literature, with emphases on the history and development of text summarization and representative approaches, both non-coherence-based and coherence-based. Section 3 describes […] **** |
** Adapted from: W.Y. Mung. “Broadband Radio Frequency Active Circulator” Dept. of Elec. Eng., City University of Hong Kong, (Dec.2007). ** Adapted from: Z. Liu. “Fabrication of Novel Optical Fibers and their Application”, Dept. of Elec. Eng., Hong Kong Polytechnic University, (no date). ***Adapted from: K.T. Mok “ Broadband Linearised Amplifier”. Dept. of Elec. Eng., City University of Hong Kong, (Dec.2002). **** Adapted from: R. Zhang. “Coherence-Based Text Summarisation” Dept. of Computing, Hong Kong Polytechnic University, (Dec. 2010). |
Note:
Requirements for the structural organisation of a Confirmation Report vary across the Engineering disciplines. For example, in some Engineering reports, the problem statement (a statement outlining the research gap) is first presented, followed by a general introduction that contextualises the study and then, the details of the proposed methodological approach to addressing the gap are stated. Candidates must be aware of departmental conventions and consult their supervisor for appropriate guidance for the structural organisation of this document.
Structure: Coherent organisation of Information
An important aspect of the structure of an Introduction is that the information presented should be organised logically so that the information flows smoothly across sections. Section headings should also be concise and accurately represent the content included.
These two points are illustrated in the following two extracts from a Confirmation Report in Electronic and Information Engineering entitled Protein Subcellular Localization Prediction Based on Gene Ontology and SVM.
- A) The TOC (Table of Contents) for the Introduction
- B) An edited extract from the Introduction, which features paragraphs with information relevant to the sub-headings of the Introduction.
In the table below, the TOC (Table of Contents) from the Introduction of a Confirmation Report in Electronic and Information Engineering is presented in Column A. An explanation of the components of their organisational structure is provided in Column B.
A) Table of Contents
Title of research: Protein Subcellular Localization Prediction Based on Gene Ontology and SVM.
TOC of the Introduction |
Aspects covered (Structural organisation of the Introduction) |
Introduction |
1.1 Broad research topic |
Adapted from: S. Wan. “Protein Subcellular Localisation Prediction Based on Gene Ontology and SVM”. Dept. of Elec. And Inf. Eng., Hong Kong Polytechnic University, (Sep. 2011). |
Coherent organisation: Relationship between the title and TOC for the Introduction
B) Edited Introduction
This edited Introduction serves to highlight the development of a coherent and logical structure. The section headings in the extract are the same as the ones in the TOC. For each section, note the heading used and see how the main focus is developed in the paragraph.
The research is entitled Protein Subcellular Localization Prediction Based on Gene Ontology and SVM.
Sections 1.1 and 1.2 introduce the research topic (Protein Subcellular Localization Prediction). In Section 1.3, the two proposed methods (based on Gene Ontology and SVM) are presented.
Note: Sections of the text deleted due to space constraints are marked […].
Click on the sub-headings 1.1- 1.4 to see the explanation for each sub-section.
1.1 Proteins and Subcellular Locations 1.2 Subcellular Localization Prediction 1.2.1 Conventional Prediction Methods 1.2.2 Comparing Conventional Methods 1.3 Proposed Methods for current study 1.4 Overview |
Adapted from: S. Wan. “Protein Subcellular Localisation Prediction Based on Gene Ontology and SVM”. Dept. of Elec. And Inf. Eng., Hong Kong Polytechnic University, (Sep. 2011). |
Structure: Cyclical organisation of information
Some Introductions, multiple aspects of the research topic are examined and Move 2 (review and evaluation of relevant research) and Move 3 (research gap) are repeated for each aspect. This is sometimes followed by a brief statement outlining the scope of the research (what it includes), and presentation of the objectives of the study.
In the following Introduction from a Confirmation Report in Civil and Environmental Engineering, these two moves are repeated cyclically for two aspects:
- The hybrid technique of combining ultraviolet (UV) irradiation and US in paragraph 1 and
- The combination of catalyst-free UV and US (US/UV) in paragraph 2.
Note: Sections of the text deleted due to space constraints are marked […].
Click on numbers 1-4 in superscript to see their explanations.
Key:
Move 2 (review and evaluation of relevant research)
Move 3 (research gap)
Among various AOPs, high-frequency ultrasound (US) has attracted considerable interest in recent years by virtue of its particular comparative advantages, such as the avoidance of chemical dosing and catalysts, safety, a lower demand for solution clarity, etc.[2] […]. Although US can achieve the degradation of refractory compounds, one of its shortcomings is its relatively low efficiency, mostly due to […] to form more stable molecules (H2O2, H2O, etc), [3] which reduces the effective contact between radicals and target contaminants. In order to counter these effects and enhance the oxidation performance by US, its combination with other AOP technologies […], has been tested in an attempt to show either an additive or a synergistic benefit. The hybrid technique of combining ultraviolet (UV) irradiation and US Note 1 has been found to be beneficial in enhancing the degradation of target compounds but the majority of previous studies have been conducted under photocatalyst-mediated conditions, [4-6] which has the disadvantage of incurring the additional costs of the catalysts and their final disposal. Note 2 The combination of catalyst-free UV and US (henceforth US/UV) Note 3, however, has the advantage of avoiding the cost of the catalyst, the additional process complexity and the potential hazard of catalyst leaching into the aqueous environment. Currently, information regarding the US/UV process is relatively limited, and a similar conjecture of the auxiliary role of photolysis of the ultrasonically generated H2O2 is proposed.[7] There is a need for more detailed information concerning the exact role of H2O2 in the treatment reactions and a mechanistic model to describe the US/UV process. Note 4 |
Adapted from: L. Xu. “Degradation of Refractory Contaminants in Water by Chemical –Free Radicals Generated by Ultrasound and UV Irradiation”. Dept. of Civil and Env. Eng., Hong Kong Polytechnic University, (June 2014). |
In the above extract, the first paragraph reviews the first aspect, the hybrid technique of combining ultraviolet (UV) irradiation and US and identifies the gap: studies reviewing this technique have been conducted under photocatalyst-mediated conditions which have their associated disadvantages of higher costs and catalyst disposal. In the second paragraph, the second aspect – the combination of catalyst-free UV and US (US/UV) is reviewed to show that it overcomes the disadvantages of the first aspect but highlights the gap: the need to investigate ‘the role of H2O2 in the treatment reactions and a mechanistic model to describe the US/UV process’.
Activity 1>> 2
Column A includes seven extracts from a Confirmation Report in Electronic and Information Engineering. Read each extract and select the corresponding function from the options in Column B. Each extract only has one correct option.
Click on the button ‘Explanation’ after the MC options in Column B to understand the answer.
Note: Sections of the text deleted due to space constraints are marked […].
A: Extract from the Introduction | B: Relevant communicative purpose |
1. Given the limitations of conventional prediction methods, two alternative approaches are proposed. The first approach fuses functional domain methods and homology-based methods. These two methods can provide strongly complementary information about sub-cellular localization prediction to each other. The second proposed approach, GOASVM, is a functional domain method that makes full use of the Gene Antology Annotation (GOA) database to predict the sub-cellular location of proteins. Experimental results show that GOASVM demonstrates a better performance than other existing methods. * |
To identify the research topic and establish its significance To review and evaluate previous research To identify the research gap the study aims to address. To outline the objectives of the study and how they address the research gap being investigated. To identify the expected contribution of the proposed study To signal the organisation of information in the report. The research seeks to address the shortcomings of conventional prediction methods by investigating alternative methods for predicting the sub-cellular location of proteins. In this extract, two proposed methods are evaluated in terms of how they assist in predicting where proteins are located within a cell.
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2. Advanced oxidation processes (AOPs) involving the generation of hydroxyl radicals (OH∙) as the primary oxidant have been shown to be successful in degrading refractory organic contaminants in waters and wastewaters.[1] Among various AOPs, high-frequency ultrasound (US) has attracted considerable interest in recent years by virtue of its particular comparative advantages, such as the avoidance of chemical dosing and catalysts, safety, a lower demand for solution clarity, etc.[2] The sonochemical effect is mainly attributed to the acoustic cavitation phenomenon, which is the process of formation, growth and sudden collapse of gas bubbles, leading to the generation of extreme conditions (e.g. 5000 K, 1000 atm.) locally. The pyrolysis of water molecules under such conditions is believed to yield both H∙ and OH∙ radical species [2]. ** |
To identify the research topic and establish its significance To review and evaluate previous research To identify the research gap the study aims to address. To outline the objectives of the study and how they address the research gap being investigated. To identify the expected contribution of the proposed study To signal the organisation of information in the report.
In this extract, the literature on AOPs involving the generation of hydroxyl radicals (OH∙) as the primary oxidant is reviewed. Two studies are cited to identify the advantages of AOPs. Theoretical information (sonochemical effect of AOPs) is presented to explain how AOPs degrade refractory organic contaminants.
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3. Research on the use of active devices [1] – [3] to replace the conventional ferrite circulator has attracted increasing interest. Although these active quasi-circulators are not quite a complete active circulator, they have many possible applications in front-end components such as phase shifters and delay lines, among others. *** |
To identify the research topic and establish its significance To review and evaluate previous research To identify the research gap the study aims to address. To outline the objectives of the study and how they address the research gap being investigated. To identify the expected contribution of the proposed study To signal the organisation of information in the report.
This extract identifies the research topic (the use of active devices to replace the conventional ferrite circulator) and outlines the possible applications in front end components. The use of the phrases ‘many possible applications’ and ‘has attracted increasing interest’ suggest it is an important research topic.
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4. The aim of the present research is to evaluate the compressive strength and hot working characteristics of the TX32 alloys with a view to understand the effect of the combined additions of Al and Si to TX alloys. **** |
To identify the research topic and establish its significance To review and evaluate previous research To identify the research gap the study aims to address. To outline the objectives of the study and how they address the research gap being investigated. To identify the expected contribution of the proposed study To signal the organisation of information in the report.
In this extract, the objective of the research (the evaluation of TX32 alloys) is stated and rationalised (to understand the impact of the addition of Al and Si to TX alloys).
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5. The rest of this report is organized as follows. In Chapter 2, the procedures of constructing GO vectors from sequences using InterProScan and post processing the raw GO vectors are detailed. The profile alignment SVM and the fusion with interProGOSVM are explained. In Chapter 3, […] In Chapter 7, conclusions and the future works are presented. * |
To identify the research topic and establish its significance To review and evaluate previous research To identify the research gap the study aims to address. To outline the objectives of the study and how they address the research gap being investigated. To identify the expected contribution of the proposed study To signal the organisation of information in the report.
In this extract, the content and organisation of the information presented in each chapter of the report is stated.
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6. Existing investigations related to IDF focus on flame appearance, soot loading and thermal performance. There is limited research about the effect on these characteristics of the use of different fuels and on the study of an inverse diffusion flame. […] There is a need to conduct an intensive study to investigate the combustion, thermal and emission characteristics of gas-fired inverse diffusion flame burner burning mixed LPG/H2 fuel. ***** |
To identify the research topic and establish its significance To review and evaluate previous research To identify the research gap the study aims to address. To outline the objectives of the study and how they address the research gap being investigated. To identify the expected contribution of the proposed study To signal the organisation of information in the report.
In this extract, the focus of existing research on IDF is first identified and then the gap (inadequate information on the characteristics of a flame produced by burning mixed LPG/H2 fuel in an IDF) is stated.
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7. It is expected that that the output quality of such coherence-adapted or coherence-based systems will be significantly improved for various text genres, both news and beyond. ****** |
To identify the research topic and establish its significance To review and evaluate previous research To identify the research gap the study aims to address. To outline the objectives of the study and how they address the research gap being investigated. To identify the expected contribution of the proposed study To signal the organisation of information in the report.
The expected contribution of the research is stated in this extract.
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* Adapted from: S. Wan. “Protein Subcellular Localisation Prediction Based on Gene Ontology and SVM”. Dept of Elec. And Inf. Eng., Hong Kong Polytechnic University, (Sep. 2011). ** Adapted from: L. Xu. “Degradation of Refractory Contaminants in Water by Chemical –Free Radicals Generated by Ultrasound and UV Irradiation”. Dept. of Civil and Env. Eng., Hong Kong Polytechnic University, (June 2014). ***Adapted from: W.Y. Mung. “Broadband Radio Frequency Active Circulator” Dept. of Elec. Eng., City University of Hong Kong, (Dec.2007). **** Adapted from: D. Chalasani. “Microstructure and Texture Evolution During Hot Working of Mg-3Sn-2Ca (TX32) Alloys With Micro Additions of ‘Al’ and ‘Si’”. Dept. of Manuf. Eng. And Eng. Mgmt., City University of Hong Kong, (May 2011). ***** Adapted from: J. Miao. “Combustion, Thermal and Emission Characteristics of gas-fired Inverse Diffusion Flames Burning Mixed LPG/Hydrogen Fuel”, Dept. of Mech Eng., Hong Kong Polytechnic University. (no date). ******Adapted from: R. Zhang. “Coherence-Based Text Summarisation” Dept. of Computing, Hong Kong Polytechnic University, (Dec. 2010). |
Explanations for the answers are provided in italics in Column B
A: Extract from the Introduction |
B: Relevant communicative purpose |
1. Given the limitations of conventional prediction methods, two alternative approaches are proposed. The first approach fuses functional domain methods and homology-based methods. These two methods can provide strongly complementary information about sub-cellular localization prediction to each other. The second proposed approach, GOASVM, is a functional domain method that makes full use of the Gene Antology Annotation (GOA) database to predict the sub-cellular location of proteins. Experimental results show that GOASVM demonstrates a better performance than other existing methods. |
To outline the objectives of the study and how they address the research gap being investigated. |
2. Advanced oxidation processes (AOPs) involving the generation of hydroxyl radicals (OH∙) as the primary oxidant have been shown to be successful in degrading refractory organic contaminants in waters and wastewaters.[1] Among various AOPs, high-frequency ultrasound (US) has attracted considerable interest in recent years by virtue of its particular comparative advantages, such as the avoidance of chemical dosing and catalysts, safety, a lower demand for solution clarity, etc.[2] The sonochemical effect is mainly attributed to the acoustic cavitation phenomenon, which is the process of formation, growth and sudden collapse of gas bubbles, leading to the generation of extreme conditions (e.g. 5000 K, 1000 atm) locally. The pyrolysis of water molecules under such conditions is believed to yield both H∙ and OH∙ radical species [2]. |
To review and evaluate previous research |
3. Research using active devices [1] – [3] to replace the conventional ferrite circulator has attracted increasing interest. Although these active quasi-circulators are not quite a complete active circulator, they have many possible applications in front-end components such as phase shifters and delay lines, among others. |
To identify the research topic and establish its significance |
4. The aim of the present research is to evaluate the compressive strength and hot working characteristics of the TX32 alloys with a view to understand the effect of the combined additions of Al and Si to TX alloys. |
To outline the objectives of the study and how they address the research gap being investigated. |
5. The rest of this report is organized as follows. In Chapter 2, the procedures of constructing GO vectors from sequences using InterProScan and postprocessing the raw GO vectors are detailed. The profile alignment SVM and the fusion with interProGOSVM are explained. In Chapter 3, […] In Chapter 7, conclusions and the future works are presented. |
To signal the organisation of information in the report. |
6. Existing investigations related to IDF focus on flame appearance, soot loading and thermal performance. There is limited research about the effect on these characteristics of the use of different fuels and on the study of an inverse diffusion flame. […] There is a need to conduct an intensive study to investigate the combustion, thermal and emission characteristics of gas-fired inverse diffusion flame burner burning mixed LPG/H2 fuel. |
To identify the research gap the study aims to address. |
7. It is expected that that the output quality of such coherence-adapted or coherence-based systems will be significantly improved for various text genres, both news and beyond. |
To identify the expected contribution of the proposed study |
Note:
‘Identifying the objectives’ and ‘how the objectives address the research gap being investigated’ are illustrated in two extracts, 4 and 1 respectively.
In the following Introduction from a Confirmation Report in Civil and Environmental Engineering, the organisation of information does not follow a coherent structural pattern. Re-order the information to make it a logically organised text using the following pattern of organisation:
- Research topic and background information
- Review of relevant research
- Research gap
- Objective(s) of the research
- Research approach adopted
Note: In some of the five aspects of structural organisation listed above, more than one sentence should be included.
Click the button ‘Check answer’ to see the answer key
Click on the button Original extract’ to see the sentences arranged in logical order.
It is one of the most common phthalate esters, which are a group of industrially important chemicals, widely employed as plasticizers and additives to improve the mechanical properties and flexibility of various products [8, 9].
However, the potential enhancement of DMP degradation by the combination of US with UV (sonophotolysis) has not been reported so far.
The contribution of H2O2 is examined both qualitatively and quantitatively, and a novel inverted S-curve degradation model is proposed to describe the hybrid process.
However, DMP has been listed as a priority pollutant by the U.S. Environmental Protection Agency (USEPA) owing to its toxicological properties.
Various methods of treating DMP by AOPs have been investigated in recent years, such as O3/H2O2, [11] O3/UV, [8] TiO2-UV,[12] and Fe(VI)-TiO2-UV,[13] and a limited number of studies have considered the sonolytic degradation of DMP, proposing the dominant role of OH∙ radical oxidation.
Dimethyl phthalate (DMP) was selected as the model compound for this study since it is an anthropogenic contaminant of environmental concern and relatively recalcitrant to degradation in the environment.
In view of the above, the main interest of this study is to ascertain the main mechanism of the hybrid process of US/UV in the absence of any catalyst with DMP as a chosen probe.
Substantial quantities of DMP are released into environmental water bodies through the disposal of manufacturing wastewater and from direct leaching from plastic products, leading to its widespread occurrence and potential risks on the health of humans and wildlife.
Adapted from: L. Xu. “Degradation of Refractory Contaminants in Water by Chemical –Free Radicals Generated by Ultrasound and UV Irradiation”. Dept. of Civil and Env. Eng., Hong Kong Polytechnic University, (June 2014).
Answer Key
Click on the numbers (Note _) in superscript to see their relevant explanation.
Research topic and background information |
Dimethyl phthalate (DMP) was selected as the model compound for this study since it is an anthropogenic contaminant of environmental concern and relatively recalcitrant to degradation in the environment. Note1 It is one of the most common phthalate esters, which are a group of industrially important chemicals, widely employed as plasticizers and additives to improve the mechanical properties and flexibility of various products.[8, 9] Note 2 However, DMP has been listed as a priority pollutant by the U.S. Environmental Protection Agency (USEPA) owing to its toxicological properties. Note 3 Substantial quantities of DMP are released into environmental water bodies through the disposal of manufacturing wastewater and from direct leaching from plastic products, leading to its widespread occurrence and potential risks on the health of humans and wildlife. Note 4 |
Review of relevant research |
Various methods of treating DMP by AOPs have been investigated in recent years, such as O3/H2O2, [11] O3/UV, [8] TiO2-UV,[12] and Fe(VI)-TiO2-UV,[13] and a limited number of studies have considered the sonolytic degradation of DMP, proposing the dominant role of OH∙ radical oxidation. Note 5 |
Research gap |
However, the potential enhancement of DMP degradation by the combination of US with UV (sonophotolysis) has not been reported so far. Note 6 |
Objective(s) of the research |
In view of the above, the main interest of this study is to ascertain the main mechanism of the hybrid process of US/UV in the absence of any catalyst with DMP as a chosen probe. Note 7 |
Research approach adopted |
The contribution of H2O2 is examined both qualitatively and quantitatively, and a novel inverted S-curve degradation model is proposed to describe the hybrid process. Note 8 |
Original extract
Dimethyl phthalate (DMP) was selected as the model compound for this study since it is an anthropogenic contaminant of environmental concern and relatively recalcitrant to degradation in the environment. It is one of the most common phthalate esters, which are a group of industrially important chemicals, widely employed as plasticizers and additives to improve the mechanical properties and flexibility of various products.[8, 9] However, DMP has been listed as a priority pollutant by the U.S. Environmental Protection Agency (USEPA) owing to its toxicological properties.[10] Substantial quantities of DMP are released into environmental water bodies through the disposal of manufacturing wastewater and from direct leaching from plastic products, leading to its widespread occurrence and potential risks on the health of humans and wildlife. Various methods of treating DMP by AOPs have been investigated in recent years, such as O3/H2O2, [11] O3/UV, [8] TiO2-UV,[12] and Fe(VI)-TiO2-UV,[13] and a limited number of studies have considered the sonolytic degradation of DMP, proposing the dominant role of OH∙ radical oxidation. [14, 15] However, the potential enhancement of DMP degradation by the combination of US with UV (sonophotolysis) has not been reported so far. In view of the above, the main interest of this study is to ascertain the main mechanism of the hybrid process of US/UV in the absence of any catalyst with DMP as a chosen probe. The contribution of H2O2 is examined both qualitatively and quantitatively, and a novel inverted S-curve degradation model is proposed to describe the hybrid process. |
Adapted from: L. Xu. “Degradation of Refractory Contaminants in Water by Chemical –Free Radicals Generated by Ultrasound and UV Irradiation”. Dept. of Civil and Env. Eng., Hong Kong Polytechnic University, (June 2014). |
The Introduction to a Confirmation Report serves a very important purpose of contextualizing the proposed research. This section covers important aspects of language use in the Introduction, which are required to fulfil the following communicative functions:
- Identifying the research topic and establishing its significance
- Critically evaluating research
- Indicating the research gap
- Outlining research objectives
- Outlining the organisation of the report
It also discusses the use of verb tenses used in the Introduction.
Language used to identify the research topic and establish its significance
When introducing the research topic, the author starts with broad statements that refer to generally accepted facts, often using the present tense. The present perfect tense is used to present information that has been found over a period of time from the past until the present.
In order to signal the importance of the research topic, evaluative language (adjectives and adverbs and evaluative phrases) is used.
Extract A |
Research Topic Present tense for factual information
Adjectives to signal importance of topic
Present perfect tense to refer to information true over an extended period of time until the present.
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Protein subcellular localization is one of the most essential and indispensable topics in proteomics research. |
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Adapted from: S. Wan. “Protein Subcellular Localisation Prediction Based on Gene Ontology and SVM”. Dept. of Elec. And Inf. Eng., Hong Kong Polytechnic University, (Sep. 2011). |
Language used to critically evaluate research
In an Introduction, the main objective in citing other researchers’ work is to provide a background to the proposed research. Relevant research is not merely reported – it is analysed and evaluated to situate the proposed research and justify it as a solution to the research problem. This process of analysis and evaluation also enables the author to establish their stance towards the research that is being cited. In order to fulfil these objectives, authors use the following language features:
Adjectives and adverbs
Attitudinal expressions (phrases that signal the author’s attitude)
Here are some examples of evaluatory language (highlighted in green) from Confirmation Reports in Engineering which illustrate their objective in suggesting inadequacies in previous research to lead into the research gap and signal the author’s stance towards current research.
Key: Evaluatory language Extract B |
A. Due to the significant development of modern electronic systems, performance, efficiency and cost are important issues. Currently many existing power architectures in power electronic systems are no longer effective in meeting these competing requirements [1]. * B. In view of these deficiencies and challenges, the application of HFAC is limited. ** |
* Adapted from: C. Xu. “The Investigation of Load Side Power Conversion for High Frequency AC Distribution Systems”. Dept. of Elec. Eng., Hong Kong Polytechnic University, (no date). ** Adapted from J. Liu. “Investigation of Power Conversion and Control Scheme for High Frequency AC Power Distribution System”, Dept. of Elect. Eng., Hong Kong Polytechnic University (no date). |
In the first extract, the adjectives ‘time-consuming’, ‘laborious’ evaluate the traditional methods used to predict the subcellular location of proteins. In the next sentence, ‘newly-found’ highlights the significance of new protein sequences that have been discovered. The importance of this development is highlighted by the adverb ‘rapidly’. ‘Post-genomic’ era draws attention to the specific period being discussed in the context of approaches to protein subcellular localization prediction. The adjectives ‘reliable, efficient and automatic’ are used to suggest that past methods were not as ‘reliable, efficient and automatic’ and hence improved methods are needed to predict where a protein resides in a cell.
In the second extract, ‘Deficiencies and ‘challenges’ are nouns which convey a negative evaluation of the application of HFAC. This evaluation is supported by the use of the negative adjective ‘limited’.
In both examples, the use of negative evaluation signals the author’s position that further research is required to invent more effective methods for subcellular localization prediction (A) and to extend the available applications of HFAC (B).
Common errors in the use of evaluative language
When using evaluative language, it is important to select the correct word form (adjective or adverb).
In Extract C below, ‘relative’ should be replaced with the adverb ‘relatively’ to modify the adjective ‘dangerous’.
Extract C |
It should be noted that the extremely high burning velocity and very low burning point of hydrogen make it a relative dangerous fuel for daily applications. |
Adapted from: J. Miao. “Combustion, Thermal and Emission Characteristics of gas-fired Inverse Diffusion Flames Burning Mixed LPG/Hydrogen Fuel”, Dept. of Mech Eng., Hong Kong Polytechnic University. (no date). |
It is also important to use academically appropriate (i.e. formal language), particularly as informal expressions tend to be vague and ineffective in terms of conveying an accurate description.
In Extract D below, ‘deeper’ can be replaced with ‘in-depth’ or ‘exhaustive’ and ‘powerful’ with ‘sound’, ‘comprehensive’ or ‘rigorous’.
Extract D |
Moreover, based on deeper biological knowledge, [23] proposes a searching algorithm called GO mining to discover the informative GO terms and classify them into instructive GO terms and essential GO terms to leverage the information in the GO database. The authors also propose using BLAST [24] to retrieve homologs of the datasets to generate GO terms for those newly found proteins without known accession numbers, which make the algorithms more powerful than the previous ones. |
Adapted from: S. Wan. “Protein Subcellular Localisation Prediction Based on Gene Ontology and SVM”. Dept of Elec. And Inf. Eng., Hong Kong Polytechnic University, (Sep. 2011). |
Other examples of informal language from Confirmation Reports | |
Informal language |
Formal/academic equivalent |
Caught people’s attention |
attracted attention |
A famous representative of |
a noted example of |
Can greatly push the progress of |
Can expedite the progress of |
The conventional PSM has an issue that it cannot get rid of |
One issue with the conventional PSM that cannot be eliminated is that.. |
Language used to indicate the research gap
The review of relevant research in an Introduction leads to a sentence outlining the research gap, which clearly identifies the shortcomings of previous research and indirectly presents a rationale for the proposed study. This sentence is presented in the form of a truth statement, using the present tense to state what previous research has not yet addressed. The author also combines evaluative language to highlight the importance of the gap and the need to address it. The following examples illustrate these techniques. Evaluative language is highlighted in green.
Extract E |
The need for research to improve the utilization of LPG, especially the reduction of C02 emissions, is significant*. The number of newly found protein sequences has been growing rapidly in the post-genomic era. Therefore, more reliable, efficient and automated methods are urgently required for the prediction of where a protein resides in a cell**. |
* Adapted from: J. Miao. “Combustion, Thermal and Emission Characteristics of gas-fired Inverse Diffusion Flames Burning Mixed LPG/Hydrogen Fuel”, Dept. of Mech Eng., Hong Kong Polytechnic University. (no date). ** Adapted from: S. Wan. “Protein Subcellular Localisation Prediction Based on Gene Ontology and SVM”. Dept of Elec. And Inf. Eng., Hong Kong Polytechnic University, (Sep. 2011). |
In some ‘gap statements’, there is an emphasis on what is missing. In the following example, the gap is introduced by a signaling expression which informs the reader that contrasting information will be presented.
Extract F |
Various methods of treating DMP by AOPs have been investigated in recent years, such as O3/H2O2, [11] O3/UV, [8] TiO2-UV,[12] and Fe(VI)-TiO2-UV,[13] and a limited number of studies have considered the sonolytic degradation of DMP, proposing the dominant role of OH∙ radical oxidation. [14, 15] However, the potential enhancement of DMP degradation by the combination of US with UV (sonophotolysis) has not been reported so far. |
Adapted from: L. Xu. “Degradation of Refractory Contaminants in Water by Chemical –Free Radicals Generated by Ultrasound and UV Irradiation”. Dept. of Civil and Env. Eng., Hong Kong Polytechnic University, (June 2014). |
Other examples of ‘gap statements’
X (specific research topic) has received little attention
There is limited research on …
Research on X is limited/inadequate
Current methods for addressing X (the specific problem) are ineffective
There is a significant need for …
There is a need to conduct…
(Topic)…has/have not been (studied/reported/explained/detailed)
…is required/needed…
The key question is/remains…
It is important to address…
Outlining the research objectives
The research objectives can be stated using the present tense and either the active or the passive voice.
Extract G |
Here, we propose two different approaches to overcoming the disadvantages. The first approach fuses functional–domain based methods and homology-based methods […]. The second proposed approach, namely GOASVM, is a functional-domain based method that makes full use of the GOA database to predict the sub-cellular location of proteins*. The goal of this project is to enhance the expressiveness of automatic summaries by instilling coherence into the mainstream summarization frameworks on different levels, from the shallowest post-extractive ordering to the deepest coherence-based revision**. Five integrated tasks are planned to achieve the objectives of the present study. These are […] ***. |
* Adapted from: S. Wan. “Protein Subcellular Localisation Prediction Based on Gene Ontology and SVM”. Dept. of Elec. And Inf. Eng., Hong Kong Polytechnic University, (Sep. 2011). ** Adapted from: R. Zhang. “Coherence-Based Text Summarisation” Dept. of Computing, Hong Kong Polytechnic University, (Dec. 2010). *** Adapted from: J. Miao. “Combustion, Thermal and Emission Characteristics of gas-fired Inverse Diffusion Flames Burning Mixed LPG/Hydrogen Fuel”, Dept. of Mech. Eng., Hong Kong Polytechnic University. (no date). |
Outlining the organisation of the report
In this last section of the Introduction, the author presents an outline of the organisation of information in the report and refers to the contents of each chapter, using the present tense. Some authors tend to use the future tense taking the view that the report is yet to be written. The present tense is preferred by authors who view the report as completed and already in existence at the time of reading. Either the active or the passive voice can be used, as long as each is used consistently.
Present tense Passive voice
Extract H |
The rest of this report is organized as follows. In Chapter 2, the procedures of constructing GO vectors from sequences using InterProScan and post-processing the raw GO vectors are detailed. The profile alignment SVM and the fusion with InterProGOSVM are explained. In Chapter 3, the GOASVM method is presented in details. The experimental setup, including datasets and the performance metrics are described in Chapter 4. In Chapter 5 and Chapter 6, results and analysis are presented. In Chapter 7, conclusions and the future works are presented. |
Adapted from: S. Wan. “Protein Subcellular Localisation Prediction Based on Gene Ontology and SVM”. Dept of Elec. And Inf. Eng., Hong Kong Polytechnic University, (Sep. 2011). |
Present tense Passive voice Active voice
Extract I |
The rest of the report is organized as follows. Section 2 is a comprehensive review of related literature, with emphases on the history and development of text summarization and representative approaches, both non-coherence-based and coherence-based. Section 3 describes my methods, implemented or proposed, to tackle the three sub-goals of the project: post-extractive ordering, coherence-based extraction, and coherence-based revision. Section 4 presents some preliminary results from post-extractive ordering and coherence-based extraction, with discussions of their significance and impact. Section 6 presents my plan and scheduled progress for the unfinished parts of the project. |
** Adapted from: R. Zhang. “Coherence-Based Text Summarisation” Dept. of Computing, Hong Kong Polytechnic University, (Dec. 2010). |
Verb tenses in an Introduction
In the Introduction, verb tenses are mainly used for the following functions:
- present the background to the research topic
- review relevant research
- identify the research problem
- present the solution
To achieve these functions, a combination of verb tenses is used as illustrated below.
- Present tense is used to refer to a process, a fact or information established as a fact in the field. The following extract illustrates the use of this tense.
Extract J |
Protein subcellular localization prediction is1 to determine the cellular compartments that a protein will be transported to. Traditionally, […] Therefore, more reliable, efficient and automatic methods are2 highly required for the prediction of where a protein resides3 in a cell. The knowledge thus obtained can help4 biologists to use5 these newly-discovered protein sequences for both basic biological research and drug design [2]. |
Adapted from: S. Wan. “Protein Subcellular Localisation Prediction Based on Gene Ontology and SVM”. Dept of Elec. And Inf. Eng., Hong Kong Polytechnic University, (Sep. 2011). |
Key
1-3: facts 4,5: processes
Present perfect tense (has/have + ed) is used to summarise or make general statements about relevant research or trends, without specifying a time period. This tense has multiple functions as follows:
Function |
Example |
To provide information or facts to create a background for the topic |
Recent years have witnessed the incredibly fast development of molecular biology and computer science, which makes it possible to utilize computational methods to determine the subcellular locations of proteins. * |
To provide background information about past research procedures. |
PIN diode switches have been used extensively in various applications, with more recent applications in the front-end of cordless telephones and mobile radio handsets. The ingenious circuits encompassing the PIN diodes have matured to such an extent that even the low-cost plastic packaging of these diodes can perform [1,2] at 2GHz. ** |
To provide a brief overview of the present state of research |
Although much progress has been achieved in high frequency ac power distribution system [1, 7-12], it has still not been widely accepted in power supply applications because of several problems such as EMI, special shield, bus cable and skin effect among others. *** |
To provide a general summary of main trends without identifying a particular article. |
The past few decades have witnessed the development of theories, models, algorithms, implemented systems […], ranging from taxonomies to techniques and across species of summarization. More recent approaches aimed at sentence compression have relied on supervised machine learning by using parallel document/summary corpora. *** |
* Adapted from: S. Wan. “Protein Subcellular Localisation Prediction Based on Gene Ontology and SVM”. Dept of Elec. And Inf. Eng., Hong Kong Polytechnic University, (Sep. 2011). ** Adapted from: Author unknown, Title Unknown, Dept. of Elec. Eng. City University of Hong Kong, (no date). *** Adapted from: C. Xu. “The Investigation of Load Side Power Conversion for High Frequency AC Distribution Systems”. Dept. of Elec. Eng., Hong Kong Polytechnic University, (no date). **** Adapted from: R. Zhang. “Coherence-Based Text Summarisation” Dept. of Computing, Hong Kong Polytechnic University, (Dec. 2010). |
Present continuous tense is used to refer to a currently developing, ongoing situation where the emphasis is on the present time. It is different from the present perfect tense which details an unspecified period of time.
Extract K |
Even though LPG is a clean fuel because of its low ash and sulphur contents, the emission of dioxide (CO2) is still causing environmental problems resulting from the emission of greenhouse gases. |
Adapted from: J. Miao. “Combustion, Thermal and Emission Characteristics of gas-fired Inverse Diffusion Flames Burning Mixed LPG/Hydrogen Fuel”, Dept. of Mech Eng., Hong Kong Polytechnic University. (no date). |
Past tense is used to refer to outcomes of previous research or finished events within a specific time period.
Extract L |
The National Academy of Science [4] reported that the release of greenhouse gases including CO2 is one of the main causes of global warming. * |
* Adapted from: J. Miao. “Combustion, Thermal and Emission Characteristics of gas-fired Inverse Diffusion Flames Burning Mixed LPG/Hydrogen Fuel”, Dept. of Mech Eng., Hong Kong Polytechnic University. (no date). ** Adapted from J. Liu. “Investigation of Power Conversion and Control Scheme for High Frequency AC Power Distribution System”, Dept. of Elect. Eng., Hong Kong Polytechnic University (no date). |
Synonyms for ‘research’: Common errors
In the Introduction (also in the Literature Review), the author refers to the proposed research using a variety of synonyms. These are, study, investigation, work, enquiry, examination, analysis and review, the first three being used more frequently than the others. They must be used appropriately, in terms of number (singular/plural forms).
- “Research” is uncountable and therefore takes a singular verb. “Researches” is a verb, not a plural noun.
- ‘Literature’ in an uncountable noun and is always in the singular form.
- ‘Work’ should be used in the singular form when referring to the proposed research. ‘Works’ is incorrect usage, as it is used to describe a collection of work in the arts.
The following examples from confirmation reports in Engineering illustrate this point:
Note: Versions in italics are correct. Mistakes are highlighted in bold font.
- There are also numbers of experimental researches about premixed flames.
There is considerable experimental research about premixed flames. - Laser deflection techniques have been used in flame researches for many years.
Laser deflection techniques have been used in flame research for many years. - As they are different from normal diffusion flames, there are not very many researches about inverse diffusion flames.
As they are different from normal diffusion flames, there is not very much research about inverse diffusion flames. - In this project, researches mainly base on experimental data analysis.
The research in this project is mainly based on experimental data analysis. - The designed AC bus frequency in these literatures is only hundred
The designed AC bus frequency in this literature is only hundred Hz.
Objectivity in scientific writing
In the Introduction to a confirmation report, authors (especially novices) structure their discussion of relevant research by focusing on other researchers and their methods, instead of discussing the research itself. This strategy is more appropriate for the Literature Review section, where the author refers to and evaluates other researchers’ work in order to identify gaps in previous research and create a space for their own study. It also adds to the length of the section and makes it less objective. One technique to achieve objectivity is to minimize author references, except when making in-text references, and provide background information to contextualize the study in a concise and focused manner.
Here is an example of an extract in which the discussion is author- focused, and its more objective version. Note how the alternative version is more effective in terms of providing a concise background to the proposed study.
Extract M |
Author-focused version (96 words) Composition-based methods are one of the earliest for predicting the sub-cellular localization of proteins. This category focuses on […] Nakashima and Nishikawa pioneered the prediction of proteins by using simple odds-ratio statistics method to discriminate between soluble intracellular and extracellular” proteins based on AA and PairAA information. […] Later, Park and Kanehisa used GapAA method to obtain much more sequential information. Based on these early approaches, Chou proposed a method called pseudo amino-acid composition (PseAA) using a sequence-order correlation factor to discover more biochemical properties from protein sequences. Possible alternative (82 words) Composition-based methods are one of the earliest for predicting the sub-cellular localization of proteins. This category focuses on […] Early methods used the simple odds-ratio statistics method to discriminate between soluble intracellular and extracellular” proteins based on AA and PairAA information, and the GapAA method to obtain much more sequential information. These two approaches formed the basis for the third approach, the pseudo amino-acid composition (PseAA) method where a sequence-order correlation factor was used to discover more biochemical properties from protein sequences. |
Adapted from: S. Wan. “Protein Subcellular Localisation Prediction Based on Gene Ontology and SVM”. Dept of Elec. And Inf. Eng., Hong Kong Polytechnic University, (Sep. 2011). |
Note: A focus on an author is more appropriate if their personal decision or viewpoints are important to the discussion of background information, especially as part of the evaluation leading up to the research gap.
Activity 1>> 2>> 3
In the following extract from the Introduction to a confirmation report in Engineering, two types of errors in the use of evaluative language, informal language and word form, are underlined. Identify the error type by using the two highlighters provided.
When you have finished, click on the button ‘Improved Version’ to see how these errors can be avoided.
- Informal language
- Word form
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Improved version
|
The following extract from a confirmation report in Engineering contains a number of errors (in bold) involving the use of tenses. From the labels below, select the correct tense option and drag it into the space next to the error.
is are was demonstrate is have been is computes has been will be applies applied computed demonstrated will compute will demonstrate was found will be found |
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Answer Key
Homology-based methods use the fact that homologous sequences are (A) more likely to reside in the same sub-cellular location. In this group of methods, a query sequence is (B) first used to search through a protein database for homologs [14] [15], and then the subcellular location of this query sequence is (C) determined as the one to which the homologs belong. This kind of methods can achieve a very high accuracy as long as the homologs of the query sequences can be found in protein databases [16]. Over the years, a number of homology-based predictors have been (D) proposed. For example, Proteome Analyst [17] computes (E) the feature vectors for classification by using the presence or absence of some tokens from certain fields of the homologous sequences in the Swiss-Prot database. Kim et al. [18] demonstrate (F) that feature vectors can be created by aligning an unknown protein sequence with every training sequence (with known subcellular locations). Recently, a predictor called PairProSVM, which applies (G) profile alignment to detect weak similarity between protein sequences was proposed by Mak et al. [19]. For each query sequence, a profile can be generated by PSLBLAST [20]. Then the obtained profile is aligned with the profile of each training sequence to form a score vector, which is classified by SVMs. It was found (H) that profile alignment is (I) more sensitive to detecting the weak similarity between protein families than sequence alignment. |
Explanation for answers for ACTIVITY 2
A, B, C, E, F, G, I are in the present tense as they refer to a process (B, C, E, F), a fact (A, I) or information established as a fact in the field.
D is in the present perfect tense as it makes a general statement about relevant research without specifying a time period.
H is in the past tense as it refers to a specific event (the discovery about profile alignment) at a specific time in the past.
Synonyms for ‘research’: Common errors
The following sentences from confirmation reports in Engineering have been adapted to include errors involving the terms used to refer to the present study. They also include simulated errors in the use of ‘research’ or its and synonyms.
Use the blue highlighter provided to identify them.
When you have finished, click on the ‘Check Answers’ button to see the correct versions and ‘Check Explanations’ to understand them.
- Simulated errors in the use of ‘research’ or its and synonyms.
** Adapted from: R. Zhang. “Coherence-Based Text Summarisation” Dept. of Computing, Hong Kong Polytechnic University, (Dec. 2010). |
Answer Key 1. To understand the disruptive innovation, we must know the researches (research) about product differentiation. ** Adapted from: R. Zhang. “Coherence-Based Text Summarisation” Dept. of Computing, Hong Kong Polytechnic University, (Dec. 2010). |
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