Copy number variant analysis by exome sequencing is an effective approach to optimize diagnostic...
Listen to Course
0:00
0:00
EN: The past participle phrase 'published in...' acts as an adjective clause (reduced relative clause) modifying the noun phrase 'A landmark genomic study'. It is equivalent to 'which was published in...'. This is a common academic writing technique to pack information densely.
The clinical trial conducted by the research team yielded promising results.
EN: The noun clause introduced by the conjunction 'that' acts as the direct object of the transitive verb 'has demonstrated'. This structure ('Subject + has demonstrated + that-clause') is standard in scientific literature to report research findings.
Recent data has demonstrated that early intervention can improve cognitive outcomes.
EN: The modal verb 'can' combined with the adverb 'substantially' expresses a strong, evidence-based capability or potential. In academic register, adverbs of degree like 'substantially' are preferred over informal ones like 'a lot' or 'very much'.
Implementing these protocols can substantially reduce contamination risks.
EN: The European Journal of Human Genetics is a highly prestigious, peer-reviewed scientific journal covering developments in human genetics. The mention of 'African populations' in genomic studies highlights a major ongoing effort in modern science to address the historical underrepresentation of non-European cohorts in genetic research, aiming to make genomic medicine globally equitable.
EN: The past participle phrase 'conducted under...' acts as an adjective modifying the noun 'The research'. This is a reduced relative clause (short for 'which was conducted under...'), used to provide background information concisely without starting a new sentence.
The clinical trial, conducted under the supervision of leading oncologists, showed promising results.
EN: The present participle phrase 'utilizing distinct algorithmic approaches' functions as a participle clause modifying the preceding noun phrase 'two well-established bioinformatics tools'. It explains how these tools function or what they do in the context of the action.
The software detects security breaches using advanced algorithms analyzing network traffic.
EN: The infinitive phrase 'to identify...' expresses purpose (an infinitive of purpose), explaining the objective of employing the two bioinformatics tools.
The laboratory upgraded its equipment to accelerate the DNA sequencing process.
EN: The reporting verb 'emphasize' followed by a 'that'-clause is used to strongly assert a point or draw attention to an important fact. In academic and formal writing, 'that' is rarely omitted after 'emphasize' to maintain a formal register.
The report emphasized that immediate action is required to mitigate the effects of climate change.
EN: The modal verb 'could' combined with the linking verb 'prove' (meaning 'to turn out to be') is used to express a strong, reasoned possibility in academic contexts, offering a more tentative and objective tone than 'will' or 'is'.
This new drug could prove beneficial for patients with chronic respiratory conditions.
EN: The compound adjective 'resource-limited' is formed by a noun and a past participle. This structure is highly productive in formal and scientific English to describe constraints or characteristics of an environment or system.
Implementing advanced technology in resource-limited schools presents unique challenges.
EN: In scientific and global health literature, 'the continent' is a common and respectful way to refer to Africa when the context has already established the geographic focus. It avoids repetitive naming while maintaining a professional and academic tone.
EN: The passive voice construction 'was initiated' is used here to focus on the action and the study itself, rather than the agents (the researchers) who started it. This is a hallmark of academic and scientific writing, where objectivity is prioritized.
The clinical trial was initiated after receiving approval from the ethics committee.
EN: The prepositional phrase 'with the explicit aim of' is a sophisticated way to express purpose or intention. It is followed by a gerund ('implementing') and specifies a clear, unambiguous goal.
The policy was introduced with the explicit aim of reducing carbon emissions.
EN: The gerund 'implementing' acts as the object of the preposition 'of'. In this context, 'implement' means to put a decision, plan, or agreement into effect, which is highly appropriate for formal, project-based registers.
The team is responsible for implementing the new software system across all departments.
EN: The sentence highlights 'DDD-Africa' (Deciphering Developmental Disorders in Africa), a significant collaborative scientific initiative. In global health and genomics, there has historically been a massive underrepresentation of African genomic data. Initiatives like DDD-Africa are culturally and scientifically crucial because they aim to bridge this 'genomic divide,' ensuring that advances in precision medicine and genetic diagnostics also benefit underserved populations on the African continent.
EN: The phrasal verb 'focus on' means to direct one's attention or efforts towards a particular subject or activity. When used in academic or formal contexts, it is often modified by adverbs like 'primarily', 'solely', or 'exclusively' to specify the scope of the research.
The study focuses primarily on the long-term effects of climate change on biodiversity.
EN: The past participle phrase 'recruited from...' functions as an adjective modifying the noun 'cohorts'. This is a reduced relative clause, shortened from 'cohorts which/that were recruited from...'.
The data analyzed in the report was gathered from patients recruited from local clinics.
EN: The sentence mentions 'South Africa' and 'the Democratic Republic of Congo' (DRC). In scientific and genomic research, Africa has historically been underrepresented, making collaborative projects like DDD-Africa crucial for addressing global health disparities and ensuring genomic medicine benefits diverse populations.
EN: The use of 'thereby' followed by a present participle (-ing clause) is a formal grammatical structure used to indicate result or consequence. 'Thereby' acts as an adverb meaning 'by that means' or 'as a result of that', linking the action of the main clause to its direct consequence.
The company streamlined its production process, thereby reducing operational costs by twenty percent.
EN: The passive voice construction 'was obtained' is used here to shift the focus from the actors (the researchers) to the action and the object of the action (ethics approval). This is a standard convention in academic and scientific writing to maintain objectivity.
Informed consent was obtained from all participants prior to the commencement of the study.
EN: The prepositional phrase 'throughout the investigation' uses 'throughout' to mean 'from the beginning to the end of' a period of time or process, emphasizing continuous duration and thoroughness.
The temperature must be kept constant throughout the experiment to ensure reliable results.
EN: In international collaborative research, especially involving genomic data from developing nations, obtaining ethics approval from multiple local institutions (like the University of the Witwatersrand and University of Pretoria in South Africa, and the University of Kinshasa in the DRC) is a critical standard. This ensures respect for local sovereignty, prevents 'helicopter research' (where Western researchers take samples without local collaboration), and guarantees that the research complies with the ethical standards of all participating countries.
EN: The verb 'comprise' means 'to consist of' or 'to be made up of'. In active voice, the whole comprises the parts (e.g., 'The team comprises ten members'). It is a more formal alternative to 'consist of' and does not take the preposition 'of' in the active voice, unlike 'is composed of'.
The collection comprises over one thousand rare manuscripts from the medieval period.
EN: The past participle phrase 'diagnosed with...' acts as an adjectival modifier reducing a relative clause ('who were diagnosed with...'). It directly post-modifies the noun 'probands'.
Patients diagnosed with this rare condition often require specialized multidisciplinary care.
EN: The elliptical construction 'where available' is a conditional reduced clause standing for 'where they were available' or 'if they were available'. It is commonly used in academic and scientific writing to denote conditional inclusion without repeating the subject.
The researchers collected blood samples from the patients, along with tissue biopsies where available.
EN: In clinical genetics, a 'proband' (or index case) is the first affected family member who seeks medical attention or is identified for a genetic study. In developing regions like Africa, involving parents (forming 'trios' or 'duos') is crucial for filtering out benign inherited variants from de novo disease-causing mutations, but is often logistically challenging due to resource limitations.
EN: The prepositional phrase 'with + noun + participle' (with males constituting...) is an absolute construction used to provide additional, circumstantial information or details related to the main clause.
The company reported record profits, with online sales accounting for the majority of the revenue.
EN: The verb 'constitute' is a formal synonym for 'make up' or 'account for', commonly used in academic and scientific contexts to describe the components of a whole.
Nitrogen and oxygen constitute ninety-nine percent of the Earth's atmosphere.
EN: The verb 'yield' is used in academic and scientific contexts to mean 'to produce or provide a natural product, result, or amount'. It is highly formal and preferred over 'get' or 'result in' when discussing data collection or research outcomes.
The survey yielded valuable insights into consumer behavior.
EN: The present participle clause starting with 'encompassing' acts as an adverbial clause of accompaniment or result, modifying the main clause. It is used to break down or detail the components of the total number of participants previously mentioned.
The festival attracted over ten thousand visitors, encompassing people of all age groups.
EN: Ellipsis of the verb and noun: In the phrase 'and 147 from the Democratic Republic of Congo', the verb 'yielded' and the noun 'participants' are omitted to avoid repetition. The full underlying structure is 'and yielded 147 participants from...'.
She ordered three cups of coffee and he, two of tea.
EN: In genetic research, particularly in developmental disorder studies, the terms 'trio', 'duo', and 'singleton' have specific technical meanings. A 'trio' refers to a genetic sample consisting of the affected individual (proband) and both biological parents. A 'duo' consists of the proband and only one parent, while a 'singleton' refers to the proband alone. Analyzing trios is highly valued in genomics as it allows researchers to easily identify de novo (new) mutations by comparing the child's DNA directly with both parents.
EN: The phrase 'Were it not for...' is a formal, inverted conditional structure used to express what would happen if a specific factor or situation did not exist. It is equivalent to 'If it were not for...' and is used for hypothetical situations in the present or future (Second Conditional).
Were it not for your timely assistance, we would not complete the project on schedule.
EN: Gerund phrase as subject: 'extracting copy number variant data from exome sequencing' acts as the complete subject of the main clause. The head of this phrase is the gerund 'extracting', which takes a direct object ('data') and a prepositional modifier.
Developing new diagnostic tools requires multidisciplinary collaboration.
EN: The adverb 'prohibitively' is used to modify adjectives (here, 'challenging') to indicate that something is to such a high degree that it prevents or discourages action, often used in financial or technical contexts.
The cost of the equipment remains prohibitively expensive for small laboratories.
EN: The use of the reporting verb 'suggest' followed by a 'that'-clause is a standard academic convention used to present research findings with appropriate hedging (avoiding over-generalization or absolute certainty).
Recent data suggest that regular exercise can significantly improve cognitive function in older adults.
EN: The compound modifier 'exome sequencing-based' uses a noun-participle combination (Noun + Present/Past Participle) to function as an adjective modifying 'approaches'. This is highly common in scientific and technical registers for conciseness.
The school adopted a community-based approach to resolve the local environmental issues.
EN: The modal verb 'could' is used here to express tentative possibility or potential in scientific discourse, indicating that while the approach is viable, its implementation depends on external factors.
This new technology could reduce carbon emissions if adopted globally.
EN: The sentence highlights a critical shift in global health genomics. Historically, advanced genetic diagnostics were restricted to high-resource nations. Implementing 'first-tier' diagnostic tests in Africa represents a major step toward reducing global health disparities and democratizing precision medicine.
EN: Inversion in conditional clauses (First/Second/Third Conditional) occurs when 'if' is omitted. For the Second Conditional (expressing a hypothetical future or present situation), 'Should' is placed at the beginning of the clause, followed by the subject and the bare infinitive verb. This structure is highly formal and common in academic, scientific, or professional writing.
Should you require further assistance, please do not hesitate to contact our department.
EN: The past participle phrase 'associated with...' acts as an adjective modifying the noun phrase 'the financial burden'. It is a reduced relative clause, shortened from 'which is/are associated with...'.
The risks associated with this medical procedure are minimal but should be considered.
EN: The relative pronoun 'where' introduces a restrictive relative clause modifying the noun 'regions'. It functions as an adverbial of place within the relative clause, equivalent to 'in which'.
They decided to invest in countries where the economy is growing rapidly.
Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
The likelihood that a medical test or procedure will provide the information needed to establish a diagnosis.
A genomic technique for sequencing all of the protein-coding regions of genes in a genome.
A phenomenon in which sections of the genome are repeated and the number of repeats in the genome varies between individuals.
If it were not for; used to say that something would happen or be true if another thing did not prevent it.