Artykuły naukowe (WGB): Recent submissions
Now showing items 441-460 of 578
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Mitoza w komórkach merystematycznych oktoploidalnych form Triticale (Pszenżyto)
(1970)The obtained results of cytological investigation into the process of mitotic division in the vertical merystems of Triticale roots have led up to the conclusion that these specimens are aneusomatically differentiated. ... -
Mejoza oraz rozwój gametofitu diploidalnych i autotetraploidalnych form Secale Vavilovii Grossh
(1970)As shown by the results of our redearch, meiosis in the cells of sporogenous anthers and ovules of the diploid forms of S. Vavilovii generally follows a regular course; which leads up to the formation of spores with a ... -
Naturalne i syntetyczne poliploidy w świecie roślin (materiały pomocnicze do realizacji programu nauczania biologii w kl.IV Liceum Ogólnokształcącego)
(1970)The article deals with the cytological characteristics of the different types of natural poliploids and with their ecological and geographical differentiation, as well aa with the typical mechanisms of their multiplication. ... -
Osiągnięcia cytogenetyki w hodowli zbóż
(1970)The first part of the article presents the ways by which presumably the different species and varieties of corn have originated in nature. An essential part in the evolution of corn crops was performed by cross-fertilization, ... -
Rola światła w procesie kiełkowania nasion i zarodników
(1970)In the paper the author has presented data relating to the effect light on the germination of seeds and spores of moss and fern. He has diascussed the operation of light against the background of the metabolic processes ... -
Wybrane zagadnienia z zakresu preparowania zwierząt kręgowych
(1970)The article describes how certain preparations of vertebrates are made, mostly entire preparations as well as dry ones, such as, e.g., fish scale, dry skin preparations of reptiles, amphibians and mammals, as well as ... -
Charakterystyka morfologiczna i biologia salamandry plamistej (Salamandra Salamandra L.)
(1970)The article presents the morphological characteristics and the occurence of adult specimens of spotted salamander (Salamandra salamandra L.). On material derived from the publications on the subject as well as from the ... -
Fauna Bałtyku na tle jego historii
(1970)The paper, which deals with the fauna of the Baltic Sea and its history, consists of four chapters: I - the history of the Baltic Sea from the Barrier Lake, through the Yoldia Sea, the Ancylus Lake, and the Litoryne ... -
Powstanie gruczołów wielokomórkowych w regeneratach kończyny i ogona aksolotla (Ambystoma Mexicanum Cope)
(1970)The author has described the development of multilocular glands in the limb and tail regenerates of axolotl, within ten months after the amputation of these organs. The growth of glands is anatomically connected with ... -
Znaczenie biorytmów w wykrywaniu chorób
(1970)The article, founded upon a great many publications by different authors, is concerned with biorhythm and its relevance in the detection of illness. The author has tried to show how important in medical practice is the ... -
Reaktywność układu podwzgórzowo-przysadkowego w warunkach działania niektórych czynników fizycznych i chemicznych
(1970)Upon the basis of extensive literature, the author discusses in the article the influence of some physical and chemical factors upon the activity of the neuro-secretive system. Upon studying a number of reports on the ... -
Poziom retikulocytów i trombocytów w krwi obwodowej myszy po wielokrotnym podaniu małych dawek azotanu ołowiowego
(1970)Research on the level of reticulocytes and trombocytes is the peripheral blood of mice submitted to the action of plumbous nitrate was carried within two experimental series. The first series included 10 mice (5 males ... -
Rytmika procesów fizjologicznych
(1970)The course of biological phenomena analysed within the parameter of astronomical time has revealed striking variations in their intensity, variations characteristic both of the given species as a whole and of some of its ... -
Materiały do znajomości pory godowej ropuchy szarej (Bufo Bufo L.)
(1970)The research was carried in the years 1962 to 1968 at Staniątki, a willage situated on the south-western outskirts of the Niepołomice Forest, on sexually mature specimens of grey toad /Bufo bufo L.). Special attention ... -
Studia nad morfologią i biologią misecznika dwuguzka (Palaeolecanium Bituberculatum Targ., Homoptera, Coccoidea)
(1970)The authors describe in detail the morphology end biology of bitubercular soft scale (Paloeolecanium bituberculatum Targ). The paper comprises the description of the ovule, of the first-and second-phase larvae, of the ... -
Materiały do znajomości czerwców (Coccoidea) występujących na terenie Polski
(1970)The paper lists the species of scale insects (Coccoidea) occurring in the neighbourhood of Kłodzko and Racibórz, where this group of insects has not been investigated so far. The list includes fourteen species of scale ... -
Z zagadnień energetyki ekologicznej
(1970)In the article the author discusses the basic notions in the sphere of ecological energetics. She analyses primary and secondary productivity, end examines the research methods applied nowadays to assess bioceonotic ... -
Wstępne badania nad oddziaływaniem międzygatunkowym u Calandra Granaria L. (Coleoptera, Curculionidae) i Oryzaephilus Surinamensis L. (Coleoptera, Cucujidae)
(1970)The paper is a component part of a more extensive research on the interaction between the populations of several species of beetles, stored pests. More specifically, it concerns the interaction between Calandra granaria ... -
Problematyka wycieczek geograficznych po Bułgarii
(1968)The article is founded upon experience derived from the authors’ stays with youth groups in Bulgaria: on the example of several routes they have been able to prove how within the same expense, the same time and following ... -
Kształcenie pojęć w nauczaniu geografii na podstawie analizy podręczników szkolnych
(1968)The article deals with two questions: (1) the number of concepts wrhich the shoolchildren must learn during geography lesons at elementary school and then at the secondary school of general education (from one grade to ...