astronomy

Gabi Dachs

Gabi Dachs 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 Gabi Dachs rather than just read about it. In short: Gabriele Ursula Dachs is a New Zealand academic, and is a full professor at the University of Otago, specialising in the how cancer cells respond to hypoxia, and developing novel treatments for cancer. Early life and education Dachs was born and raised in Namibia.

Key takeaways

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

Reference excerpt

Gabriele Ursula Dachs is a New Zealand academic, and is a full professor at the University of Otago, specialising in the how cancer cells respond to hypoxia, and developing novel treatments for cancer.

Early life and education Dachs was born and raised in Namibia. Dachs completed a Bachelor of Science at the University of Cape Town in South Africa, followed by a PhD titled The effect of metronidazole on Bacteroides fragilis and Escherichia coli at the same institution.

Academic career After conducting postdoctoral research at MRC Harwell in the United Kingdom, Dachs joined the Gray Cancer Institute in London as a senior scientist. She then moved to New Zealand, where she joined the faculty of the Department of Pathology at the University of Otago, becoming a research associate professor in 2015 and then full professor in 2023. Dachs works in the Mackenzie Cancer Research Group and is based at Otago's Christchurch campus. She is interested in the molecular mechanisms that make cancers difficult to treat and in developing new treatments. Dachs has explored how cancer cells respond to hypoxia (low oxygen levels) and how the hypoxic pathway is affected by vitamin C. Dachs led research that showed that cancer cells from colon tumours removed during surgery retained vitamin C if the patient had received a very high dose infusion of vitamin C before their surgery. Previous work by her group had found that vitamin C might be an effective anticancer agent, but as solid tumours have 'disorganised' blood flow, it was not clear if vitamin C would reach or be retained in tumour cells. Dachs is also interested in why obese cancer patients do less well in treatment, and whether molecular causes for this can be identified. She is also looking at how to improve cancer treatment using prodrugs and gene therapy. Her research spans cell culture, rodent models, and clinical trials in cancer patients.

Honours and awards In 2021 Dachs was awarded the University of Otago Christchurch Research Gold Medal.

Selected works

Chris P. Guise; Maria R Abbattista; Rachelle S Singleton; et al. (9 February 2010). "The bioreductive prodrug PR-104A is activated under aerobic conditions by human aldo-keto reductase 1C3". Cancer Research. 70 (4): 1573–1584. doi:10.1158/0008-5472.can-09-3237. ISSN 0008-5472. PMID 20145130. Wikidata Q34097892. Kaye J Williams; Brian Telfer; Dia Xenaki; et al. (18 April 2005). "Enhanced response to radiotherapy in tumours deficient in the function of hypoxia-inducible factor-1". Radiotherapy and Oncology. 75 (1): 89–98. doi:10.1016/j.radonc.2005.01.009. ISSN 0167-8140. PMID 15878106. Wikidata Q47801291. Gabi U Dachs; Joanna Tupper; Gillian M Tozer (1 April 2005). "From bench to bedside for gene-directed enzyme prodrug therapy of cancer". Anti-Cancer Drugs. 16 (4): 349–359. doi:10.1097/00001813-200504000-00001. ISSN 0959-4973. PMID 15746571. Wikidata Q36061340. Caroline Kuiper; Ilona G M Molenaar; Gabi U Dachs; Margaret J Currie; Peter H Sykes; Margreet C M Vissers (22 June 2010). "Low ascorbate levels are associated with increased hypoxia-inducible factor-1 activity and an aggressive tumor phenotype in endometrial cancer". Cancer Research. 70 (14): 5749–5758. doi:10.1158/0008-5472.can-10-0263. ISSN 0008-5472. PMID 20570889. Wikidata Q43008648. Margret C M Vissers; Sarah P Gunningham; Mary J Morrison; Gabi U Dachs; Margaret J Currie (30 November 2006). "Modulation of hypoxia-inducible factor-1 alpha in cultured primary cells by intracellular ascorbate". Free Radical Biology and Medicine. 42 (6): 765–772. doi:10.1016/j.freeradbiomed.2006.11.023. ISSN 0891-5849. PMID 17320759. Wikidata Q40167157. Gabi U Dachs; Michelle A Hunt; Sophie Syddall; Dean C Singleton; Adam Patterson (10 November 2009). "Bystander or no bystander for gene directed enzyme prodrug therapy". Molecules. 14 (11): 4517–4545. doi:10.3390/molecules14114517. ISSN 1420-3049. PMC 6255103. PMID 19924084. Wikidata Q37634940. Caroline Kuiper; Gabi U. Dachs; Margaret J. Currie; Margreet C M Vissers (April 2014). "Intracellular ascorbate enhances hypoxia-inducible factor (HIF)-hydroxylase activity and preferentially suppresses the HIF-1 transcriptional response". Free Radical Biology and Medicine. 69: 308–317. doi:10.1016/j.freeradbiomed.2014.01.033. ISSN 0891-5849. PMID 24495550. Wikidata Q59617798.

References

External links The Science Of... Vitamin C, Gabi Dachs on Radio New Zealand in 2017 Scatterlings: Cancer research across continents and time, Inaugural professorial lecture by Gabi Dachs, 4 May 2023, via YouTube

Worked examples

Example 1 — a first encounter with Gabi Dachs

Start with the simplest possible case. Write down what Gabi Dachs 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 Gabi Dachs 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 Gabi Dachs 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 Gabi Dachs

In research: Gabi Dachs 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 Gabi Dachs 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: Gabi Dachs is common in secondary-school and first-year university syllabi. It links to neighbouring topics Academic staff of the University of Otago, Cancer researchers, Living people, so understanding it makes those chapters shorter.
In everyday life: Look for Gabi Dachs 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 Gabi Dachs in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Gabi Dachs 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 Gabi Dachs out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Gabi Dachs in simple terms?

Why does Gabi Dachs 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 Gabi Dachs?

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 Gabi Dachs.