science

Vladimir Yakhontov

Vladimir Yakhontov 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 Vladimir Yakhontov rather than just read about it. In short: Vladimir Vladimirovich Yakhontov (Russian: Владимир Владимирович Яхонтов; 23 November 1899 – 17 January 1970) was a Soviet and Uzbek entomologist. He is recognized as one of the leading Central Asian entomologists of the mid-20th century.

Key takeaways

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Reference excerpt

Vladimir Vladimirovich Yakhontov (Russian: Владимир Владимирович Яхонтов; 23 November 1899 – 17 January 1970) was a Soviet and Uzbek entomologist. He is recognized as one of the leading Central Asian entomologists of the mid-20th century. Yakhontov authored the USSR's first official university-level textbook on insect ecology, established the scientific school of agricultural entomology in Uzbekistan, and was a leading Soviet authority on the insect order Thysanoptera (thrips).

Yakhontov founded the Department of Entomology and Zoology at the Tashkent Institute of Agriculture, heading it for over 35 years, and later served as Director of the Institute of Zoology and Parasitology of the Academy of Sciences of the Uzbek SSR. Yakhontov was also the founder and long-time president of the Uzbekistan Entomological Society (1952–1970). His academic credentials and honors included a PhD (1934), a Doctor of Biological Sciences degree (1943), a Professor (1935), a Corresponding Member of the Academy of Sciences of the Uzbek SSR (1956), and the title of Honored Scientist of the Uzbek SSR (1960).

Biography and career Yakhontov was born on 23 November 1899 in the village of Sorovskoye, Perm Governorate of the Russian Empire (now part of the Kurgan Oblast, Russia) to a family in which both parents initially worked as rural schoolteachers before later becoming agronomists. He developed a strong interest in nature during childhood and published his first scientific article on apiculture in the Altai Mountains in the journal Pchelovodnoye Delo ("Beekeeping") in 1921. After graduating from a secondary school (realnoye uchilishche) in Shadrinsk, he enrolled at the Institute of Applied Zoology and Phytopathology in Leningrad, graduating in 1927. Alongside his academic studies, Yakhontov devoted considerable time to learning foreign languages, completing German language courses and the Berlitz direct method English courses in Leningrad. Yakhontov first visited Central Asia in 1926 for undergraduate practical field research. Following his graduation in 1927, he was appointed head of the entomology department at the Shirabudin Agricultural Experiment Station in Bukhara, where he focused on the insect pests impacting cotton and alfalfa crops. In 1929, he transferred to the plant protection station of the Main Cotton Committee in Tashkent, expanding his research into laboratory methodologies, applied entomology, and the ecology of pests such as cotton leafhoppers, aphids, cotton moths, and thrips. He combined research with teaching activities, lecturing at the Central Asian University (now National University of Uzbekistan), and later at the Tashkent Institute of Agriculture. In 1933, Yakhontov joined the Tashkent Institute of Agriculture, where he established the Department of Entomology and Zoology, and served as its chair for nearly 40 years (1933–1970). In 1934, he was awarded the degree of Candidate of Biological Sciences without a dissertation defense. He was appointed to the rank of Professor by the Higher Attestation Commission in 1935. Although his 415-page doctoral manuscript was completed in Tashkent in 1941, wartime disruptions delayed his defense until 1943, when he successfully defended his Doctor of Biological Sciences dissertation before the Academic Council of the Agricultural University of Georgia in Tbilisi. The dissertation was titled The Alfalfa Weevil (Phytonomus variabilis Hbst): Its Native Range and Current Distribution, Economic Importance, Systematic Position, Morphology and Anatomy, Biology and Ecology, and Control Measures. In 1954, Yakhontov joined the Institute of Zoology and Parasitology of the Academy of Sciences of the Uzbek SSR, where he directed the Entomology Laboratory until 1957. In 1956, he was elected a Corresponding Member of the Academy of Sciences of the Uzbek SSR and appointed Deputy Director of Scientific Work at the Institute, as well as Deputy Chairman of the Department of Biological Sciences. From 1960 to 1963, he served as the Director of the Institute of Zoology and Parasitology, where he established the Laboratory of Biological Pest Control. In 1965, Yakhontov returned to the Department of Entomology and Zoology at the Tashkent Institute of Agriculture, where he worked for the remainder of his life. Yakhontov established a scientific school of agricultural entomology in Uzbekistan. Throughout his career, Yakhontov mentored and supervised over 40 doctoral and candidate researchers to their thesis defenses. Among his notable students were Professor Rakhim Alimjanov (a Corresponding Member of the Uzbek Academy of Sciences), T. S. Zakirov (D.Sc.), M. G. Ismailov (D.Sc.), K.I. Mirpulatov (PhD), G.G. Kurbanov (PhD), A.H. Saidov (PhD), and Amina Davletshina (PhD). He also acted as an official thesis opponent for over 100 doctoral and candidate defenses across the USSR. In 1952, Yakhontov founded and served as the first president of the Uzbekistan Entomological Society - a branch of the All-Union Entomological Society (1952-1970). He was also an Honorary Member of the All-Union Entomological Society and served on the editorial boards of prominent Soviet scientific journals, including Zashchita Rastenii ("Plant Protection", Moscow) and the Uzbek Biological Journal (Tashkent). Yakhontov died on 17 January 1970 and was buried at the Botkin Cemetery (Plot 16) in Tashkent.

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Vladimir Yakhontov

Start with the simplest possible case. Write down what Vladimir Yakhontov 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 Vladimir Yakhontov 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 Vladimir Yakhontov 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 Vladimir Yakhontov

In research: Vladimir Yakhontov 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 Vladimir Yakhontov 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: Vladimir Yakhontov is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1899 births, 1970 deaths, Recipients of the Order of Lenin, so understanding it makes those chapters shorter.
In everyday life: Look for Vladimir Yakhontov 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 Vladimir Yakhontov in 20 minutes

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

Frequently asked questions

What is Vladimir Yakhontov in simple terms?

Why does Vladimir Yakhontov 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 Vladimir Yakhontov?

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 Vladimir Yakhontov.