science

Robert-Philippe Dollfus

Robert-Philippe Dollfus is a science 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 Robert-Philippe Dollfus rather than just read about it. In short: Robert-Philippe Dollfus (20 July 1887 in Paris, France – 19 February 1976 in Paris, France) was a French zoologist and parasitologist. Career Robert-Philippe Dollfus was born in Paris on July 20, 1887, in a family of Protestant tradition.

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Reference excerpt

Robert-Philippe Dollfus (20 July 1887 in Paris, France – 19 February 1976 in Paris, France) was a French zoologist and parasitologist.

Career Robert-Philippe Dollfus was born in Paris on July 20, 1887, in a family of Protestant tradition. His father was Gustave Frédéric Dollfus, a French geologist and malacologist. Very early on, he attended the laboratories of Alfred Giard and that of Alfred Blanchard. As early as 1912, at the age of 25, he established the notion of metacercaria, a stage of the lifecycle of Digenea. In 1914, he was on an oceanographic mission aboard the Research Vessel Pourquoi-Pas under the orders of Jean-Baptiste Charcot. During the Second World War, he was a stretcher bearer and auxiliary doctor. Between the wars, he worked as a "préparateur" in a laboratory of the National Museum of Natural History in Paris. However, he was able to carry out scientific expeditions in Morocco (1923-1928), the Red Sea (1928-1929) and in 1929-1930 in the Atlantic on the RV Pourquoi-Pas. He then studied fish and crustaceans, but began to study parasites, under the supervision of French parasitologist Émile Brumpt. In 1941, he defended his thesis on Trypanorhyncha Cestodes, published in 1942. He was elected President of the Zoological Society of France in 1940. He then became Director of a laboratory at the École Pratique des Hautes Etudes in Paris. After the Second World War, he became a confirmed helminthologist and parasitologist, but never succeeded in obtaining a post of Professor at the National Museum of Natural History. In 1957, despite his retirement, he continued to work every day at the National Museum of Natural History, practically until his death in 1976. In 1962, he was elected President of the French Society of Parasitology. Every spring, Robert-Philippe Dollfus went to Morocco, where his daughter lived, to work at the Institut Scientifique Chérifien. He produced articles on helminths and a Catalog of Fishes from the Atlantic Coast of Morocco. Robert-Philippe Dollfus’s scientific collections are now in the National Museum of Natural History in Paris.

Eponymous taxa

A number of taxa, generally parasites, were named in his honour. Genera include the digenean Dollfustrema Eckmann, 1934, the cestode Dollfusiella Campbell & Beveridge, 1994, and the Acanthocephala Dollfusentis Golvan, 1969. Species include the nematode Hassalstrongylus dollfusi (Díaz-Ungría, 1963) Durette-Desset, 1971.

Awards Croix de Guerre Legion of Honour (1953)

Books Dollfus, R. P. (1942). Notes diverses sur les Tétrarhynques. Muséum national d'Histoire naturelle, Paris, 41p. (Mémoires du Muséum national d'Histoire naturelle - Nouvelle Série (1935-1950); 22 (5)). Dollfus R. P. 1946. Parasites (animaux et végétaux) des Helminthes. Hyperparasites, ennemis et prédateurs des Helminthes parasites et des Helminthes libres. Essai de compilation méthodique. Encyclopédie Biologique, volume XXVII. Paul Lechevalier, Paris, 483 pages. Dollfus, R. P. F. (1953). Aperçu général sur l'histoire naturelle des parasites animaux de la morue Atlanto-Arctique, Gadus callarias L. (Morhua L.) (Vol. 43). Paul Lechevalier, Paris. Dollfus, R. P. 1968. Les Trématodes de l’histoire naturelle des Helminthes de Félix Dujardin (1845). Muséum national d'Histoire naturelle, Paris, 77p. (Mémoires du Muséum national d'Histoire naturelle, Sér. A – Zoologie (1950-1992); 54 (3)).

Selected works Dollfus, Robert Ph. (1974). "Énumération des Cestodes du plancton et des Invertébrés marins 8e Contribution avec un appendice sur le genre Oncomegas R.-Ph. Dollfus 1929". Annales de Parasitologie Humaine et Comparée. 49 (4): 381–410. doi:10.1051/parasite/1974494381. Dollfus, Robert Ph. (1973). "Du genre Monodhelmis R. Ph. Dollfus 1937 et de la famille Monodhelminthidae". Annales de Parasitologie Humaine et Comparée. 48 (2): 263–273. doi:10.1051/parasite/1973482263. Dollfus, Robert-Ph.; Golvan, Yves-J. (1963). "Sur un singulier Métacanthocéphale parasite d'insectivores (Tenrecinae) de Madagascar et des Comores". Annales de Parasitologie Humaine et Comparée. 38 (5): 793–806. doi:10.1051/parasite/1963385793. Dollfus, Robert-Ph. (1962). "Deux espèces de Trématodes monogénétiques, parasites du "Bluefin tuna" de Californie". Annales de Parasitologie Humaine et Comparée. 37 (4): 517–529. doi:10.1051/parasite/1962374517. Dollfus, Robert-Ph. (1965). "Mission Yves-J. Golvan et Jean-A. Rioux en Iran". Annales de Parasitologie Humaine et Comparée. 40 (1): 61–86. doi:10.1051/parasite/1965401061. Dollfus, Robert Ph. (1960). "Recherches expérimentales sur Nicolla gallica (R.-Ph. Dollfus 1941) R.-Ph. Dollfus 1958, sa cercaire cotylicerque et sa métacercaire progénétique. Observations sur la famille des Coitocaecidæ Y. Ozaki 1928, s.f. Coitocaecinæ F. Poche 1926 Trematoda Podocotyloidea et sur les cercaires cotylicerques d'eau douce et marines". Annales de Parasitologie Humaine et Comparée. 35 (1–2): 65–115. doi:10.1051/parasite/1960351065.

References

External links

Illustrations

Worked examples

Example 1 — a first encounter with Robert-Philippe Dollfus

Start with the simplest possible case. Write down what Robert-Philippe Dollfus claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Robert-Philippe Dollfus 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 Robert-Philippe Dollfus 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 Robert-Philippe Dollfus

In research: Robert-Philippe Dollfus appears in science 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 Robert-Philippe Dollfus 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: Robert-Philippe Dollfus is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1887 births, 1976 deaths, 20th-century French zoologists, so understanding it makes those chapters shorter.
In everyday life: Look for Robert-Philippe Dollfus 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 Robert-Philippe Dollfus in 20 minutes

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Frequently asked questions

What is Robert-Philippe Dollfus in simple terms?

Robert-Philippe Dollfus (20 July 1887 in Paris, France – 19 February 1976 in Paris, France) was a French zoologist and parasitologist. Career Robert-Philippe Dollfus was born in Paris on July 20, 1887, in a family of Protestant tradition.

Why does Robert-Philippe Dollfus matter?

Because it connects several science 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 Robert-Philippe Dollfus?

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 Robert-Philippe Dollfus.