astronomy

Julian Parkhill

Julian Parkhill is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Julian Parkhill rather than just read about it. In short: Julian Parkhill (born 1964) is Marks & Spencer Professor of Farm Animal Health, Food Science and Food Safety at the University of Cambridge. He previously served as head of pathogen genomics at the Wellcome Sanger Institute.

Key takeaways

Julian Parkhill belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Julian Parkhill to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Julian Parkhill from memory before moving on to harder problems.

Reference excerpt

Julian Parkhill (born 1964) is Marks & Spencer Professor of Farm Animal Health, Food Science and Food Safety at the University of Cambridge. He previously served as head of pathogen genomics at the Wellcome Sanger Institute.

Education Parkhill was educated at Westcliff High School for Boys, the University of Birmingham and the University of Bristol where he was awarded a PhD in 1991 for research into the regulation of transcription of the mercury resistance operon.

Career and research Parkhill uses high throughput sequencing and phenotyping to study pathogen diversity and variation, how they affect virulence and transmission, and what they tell us about the evolution of pathogenicity and host–pathogen interaction. Research in the Parkill Laboratory has been funded the Wellcome Trust, the Biotechnology and Biological Sciences Research Council (BBSRC) and the Medical Research Council (MRC).

Awards and honours Parkhill was elected a Fellow of the Academy of Medical Sciences (FMedSci) in 2009, and a Fellow of the American Academy of Microbiology (FAAM) in 2012. Dr. Julian Parkhill is currently Head of Pathogen Genomics at the Wellcome Trust Sanger Institute. Over the last decade or so, his group has analysed the genomes of many bacteria of fundamental importance for human health, including the causative agents of tuberculosis, plague, typhoid fever, whooping cough, leprosy, botulism, diphtheria and meningitis, as well as nosocomial pathogens such as Clostridioides difficile and MRSA, and food-borne pathogens such as Campylobacter jejuni, Salmonella Typhimurium and Yersinia enterocolitica. Their current research focuses on the application of high-throughput sequencing techniques to microbiology. They are currently sequencing very large collections of bacterial isolates with broad geographic and temporal spreads, linking genomic variation to epidemiology, acquisition of drug resistance, and recent evolution. In addition, they are working with local and national clinical microbiology groups to build the foundations for the transfer of microbial sequencing to clinical and public health investigations. They are also applying sequencing technologies to phenotypic investigations, particularly saturation transposon mutagenesis, transcriptomics and high-throughput phenotyping. They collaborate widely, particularly with groups in developing countries where infectious diseases are endemic. Parkhill was elected a Fellow of the Royal Society (FRS) in 2014, his certificate of election reads: Julian Parkhill has played a major role in determining the reference genome sequences of many key bacterial pathogens, including Mycobacterium tuberculosis, Yersinia pestis and Salmonella typhi. As well as providing complete catalogues of the arsenal of genes carried by each bacterium, Parkhill's work has led to important insights into how bacterial genomes evolve and the effect of variation within supposedly homogeneous bacterial populations. In parallel, tools to understand and visualise genomic data have been developed, and freely disseminated worldwide. Over a decade, Parkhill has been at the forefront of bacterial genomics, most recently using new high throughput sequencing technologies to explore evolution and transmission in bacterial pathogens, and enable the clinical use of these approaches.

References

Illustrations

Worked examples

Example 1 — a first encounter with Julian Parkhill

Start with the simplest possible case. Write down what Julian Parkhill claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Julian Parkhill before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Julian Parkhill ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Julian Parkhill

In research: Julian Parkhill appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Julian Parkhill in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Julian Parkhill is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1964 births, Alumni of the University of Birmingham, Biologists of the University of Birmingham, so understanding it makes those chapters shorter.
In everyday life: Look for Julian Parkhill outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Julian Parkhill in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Julian Parkhill means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Julian Parkhill out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Julian Parkhill in simple terms?

Why does Julian Parkhill matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Julian Parkhill?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Julian Parkhill.