Results 61 to 70 of about 178 (120)

TRES MOMENTOS DE UNA CONSTRUCCIÓN GEOMÉTRICA: APOLLONIUS DE PERGA, FRANÇOIS VIETE, JOSEPH-DIEZ GERGONNE*

Revista Brasileira de História da Matemática, 2020
La tradición matemática –en este caso geométrica- se explicita en la construcción de un círculo tangente a tres círculos dados sobre el plano. De la pléyade de geómetras que la intentan hemos tomado sólo a tres.
Mario H. Otero
doaj   +1 more source

Vulnerable but not equal: Mountain lakes exhibit heterogeneous patterns of phytoplankton responses to climate change

Limnology and Oceanography Letters, Volume 10, Issue 5, Page 712-723, September 2025.
Abstract While climate change affects the phytoplankton biodiversity at both local and global scales, predicting phytoplankton community responses to warming is impaired by their polyphyletic complexity. High mountain lakes are highly vulnerable systems, partly due to their limited biodiversity, and forecasting their ecological trajectories is a key ...
Flavia Dory, Florent Arthaud, Vincent Augé, Sonia Baillot, Céline Bertrand, Carole Birck, Rosalie Bruel, Laurent Cavalli, Evelyne Franquet, Frédérick Jacob, Clotilde Sagot, Marine Souchier, Raphaelle Napoleoni, Marie‐Elodie Perga   +13 more
wiley   +1 more source

THE PARTICIPATION OF UKRAINIAN POLITICAL PARTIES OF CHELM AND PODLASIE REGIONS IN PARLIAMENTARY ELECTIONS SECOND POLISH REPUBLIC IN 1928 [PDF]

Storìnki Istorìï, 2016
In the article the participation of Ukrainian political forces Holm and Podlasie in parliamentary elections Second Polish Republic in 1928 is investigated.
I. Perga
doaj  

Ore-bearing metasomatites of Perga area and Korosten pluton granitoids (Ukrainian shield): genetic relations on the basis of geochemical modelling

Вісник Київського національного університету імені Тараса Шевченка. Серія Геологія, 2018
Geochemistry of the most typical ore-bearing (sulfide-rare metal mineralization) metasomatites formation within tectonic zones (Perga area) spatially associated with Precambrian (1.75-1.8 Ga) Korosten anorthosite-rapakivigranite pluton (Ukrainian Shield)
І. Lazareva, S. Shnyukov, A. Aleksieienko, L. Gavryliv   +3 more
doaj   +1 more source

1. A Monograph of the Sawflies composing the Australian Genus Perga of Leach.

Proceedings of the Zoological Society of London, 1880
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

Early modern industries in the context of environmental history of Ukraine: environmental impact and research methodology

Наукові записки Вінницького державного педагогічного університету імені Михайла Коцюбинського. Серія: Історія
The aim of the article is to analyze the impact of early modern industries on the environment of Ukrainian lands in the XV–XVII centuries within the framework of environmental history. The study focuses on saltpeter production, mining, tar smoking, wine
Tetiana Perga
doaj   +1 more source

Conflicting Interests

Worldwide Waste
The article analyses the early stages of wastepaper collection in the Ukrainian SSR during the 1920s and early 1930s, with a focus on the key actors and their conflicting interests.
Tetiana Perga
doaj   +1 more source

Role of the Americans for Human Rights in Ukraine in support of human rights movement in Ukrainian SSR

Американська історія і політика, 2018
The role of NGO of the Ukrainian expat community in the USA “Americans for Human Rights in Ukraine” (AHRU) driven on the support of human rights movement in the Ukrainian SSR has been investigated. The goals of the organization and the main directions of
Tetiana Perga
doaj  

Algumas observações sobre o círculo de Apolônio e o seu emprego no método das imagens

Revista Brasileira de Ensino de Física
Na geometria plana, o círculo é definido como o conjunto de todos os pontos do plano equidistantes de um ponto arbitrário também pertencente ao plano. Apolônio de Perga (c. 262 a.C - 190 a.C.), o grande geômetra como era conhecido por seus contemporâneos,
A.C. Tort
doaj   +1 more source

An Archetypal Graphic Model in the Conics of Apollonius

Diségno
In the ancient world, and therefore well before the codification of the double orthogonal projection method developed by Gaspard Monge [Monge 1799], it was possible to represent three-dimensional space as faithfully as methods of a projective nature ...
Riccardo Migliari
doaj   +1 more source