THE BIOLOGY OF CANADIAN WEEDS.: 84. Oenothera biennis L.

1988 ◽  
Vol 68 (1) ◽  
pp. 163-173 ◽  
Author(s):  
IVAN V. HALL ◽  
ERICH STEINER ◽  
PAUL THREADGILL ◽  
RICHARD W. JONES
Keyword(s):  
Oenothera Biennis ◽  
The West ◽  
Weed Biology ◽  
Evening Primrose ◽  
True Breeding ◽  
Gravelly Soils ◽  
The Common ◽  
Winter Annual ◽  
Canadian Provinces ◽  
Facultative Biennial

Oenothera biennis L., the common evening-primrose, is a widespread weed of roadside and waste places commonly occuring on light sandy or gravelly soils where competition is limited. The species is native to North America and, although occurring in all 10 Canadian provinces, is more common in the east than in the west. The chief factor contributing to its success as a weed is the ability to tolerate drought. A winter annual or facultative biennial, it flowers and bears seed only once in a lifetime. The small, irregularly shaped seeds have a high oil content, and contain γ linolenic acid, an uncommon fatty acid of pharmaceutical value. Oenothera biennis is a true-breeding translocation heterozygote composed of two genomes (complexes) differing genetically as well as in chromosomal end arrangement. Populations of O. biennis consist of numerous inbreeding lines, between which limited hybridization may occur.Key words: Common evening-primrose, Oenothera biennis, weed biology, population structure

scholarly journals Evaluation and Distribution of Onagraceae Species in the Texas Panhandle and Texas South Plains

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 670a-670
Author(s):  
Sandra A. Balch ◽  
Cynthia B. McKenney ◽  
Dick L. Auld
Keyword(s):  
Native Species ◽  
Oil Content ◽  
Arid Environments ◽  
Oenothera Biennis ◽  
Evening Primrose ◽  
Distribution Maps ◽  
Texas Panhandle ◽  
Dry Conditions ◽  
Gravelly Soils ◽  
Commercial Sources

Oenothera biennis, common evening primrose, produces seeds that have a high oil content containing gamma-linolenic acid (GLA), a fatty acid of medicinal, and dietary importance. These plants are commonly found in sandy or gravelly soils and have the ability to tolerate hot, dry conditions. Plants containing economically important oils such as GLA are potential crops for arid environments with minimal irrigation. Many native species of evening primrose have not yet been evaluated for oil content. In this project, a systematic survey of native Onagraceae species was conducted in the Texas Panhandle and the Texas South Plains. Six species of Oenothera and two species of Calylophus were found. Locations were recorded with a Global Positioning System (GPS) to facilitate relocation and collection. Distribution maps were made for each species. The occurrence of species varied greatly from north to south, with the exception of one species that occurred throughout the area surveyed. Seeds were collected from each species and from various locations within the range of each species. Germination percentages were determined for each species and had a wide variation. Evaluation of the oil content of this native germplasm could possibly lead to development of new commercial sources of GLA.

Dependency in Africa: Stages of African Political Economy

1983 ◽  
Vol 9 (2) ◽  
pp. 229-247 ◽  
Author(s):  
Amechi Okolo
Keyword(s):  
Political Economy ◽  
International System ◽  
Raw Material ◽  
The West ◽  
Cheap Labour ◽  
History Of ◽  
The Common ◽  
First Contact ◽  
The Impact ◽  
The Relationship

This paper traces the history of the relationship between Africa and the West since their first contact brought about by the outward thrust of the West, under the impetus of rising capitalism, in search of cheap labour and cheap raw material for its industries and expanding markets for its industrial products, both of which could be better ensured through domination and exploitation. The paper identifies five successive stages that African political economy has passed through under the impact of this relationship, each phase qualitatively different from the other but all having the common characteristic of domination-dependence syndrome, and each phase having been dictated by the dynamics of capitalism in different eras and by the dominant forces in the changing international system. Its finding is that the way to the latest stage, the dependency phase, was paved by the progressive proletarianization of the African peoples and the maintenance of an international peonage system. It ends by indicating the direction in which Africa can make a beginning to break out of dependency and achieve liberation.

The biology of Canadian weeds. 108. Erucastrum gallicum (Willd.) O.E. Schulz

1998 ◽  
Vol 78 (1) ◽  
pp. 155-165 ◽  
Author(s):  
Suzanne I. Warwick ◽  
David A. Wall
Keyword(s):  
United States ◽  
Reproductive Output ◽  
Agronomic Traits ◽  
Crop Improvement ◽  
The United States ◽  
Biological Information ◽  
Close Relative ◽  
Weed Biology ◽  
Germplasm Resource ◽  
Winter Annual

A review of biological information is provided for Erucastrum gallicum (Willd.) O.E. Schulz. A European native, it was introduced into Canada and the United States in the early 1900s and spread rapidly along the railroads. The species occurs in all the provinces and the Northwest Territories and is particularly abundant in the Prairie provinces and mid-western United States. It is a summer annual, rarely a winter annual or biennial species, and is characterized by high reproductive output. Plants occur most commonly on waste ground and along roadsides and railroads, followed by agricultural fields. Erucastrum gallicum is of allopolyploid origins (n = 15, 7 + 8 chromosomes), and contains a single multi-locus isozyme genotype. The species is a close relative of Brassica and is capable of limited genetic exchange with the canola species, B. rapa and B. napus. The possible transfer of genes from transgenic canola varieties to Erucastrum gallicum poses a remote, but potential, environmental risk. Populations of Erucastrum gallicum, including both Old World and North American populations, constitute a valuable germplasm resource as potential sources of beneficial agronomic traits, such as disease resistance for canola crop improvement. Key words: Dog mustard, Erucastrum gallicum, weed biology, risk assessment, germplasm, canola

Outer limits of the continental shelf beyond CLCS recommendations and Article 76(8) of UNCLOS: With reference to Japan’s Cabinet Order No. 302

2021 ◽  
pp. 1-19
Author(s):  
Michael Sheng-ti Gau ◽  
Si-han Zhao
Keyword(s):  
Continental Shelf ◽  
The West ◽  
Common Heritage ◽  
Common Heritage Of Mankind ◽  
Essential Questions ◽  
National Jurisdiction ◽  
The Common ◽  
United Nations Convention ◽  
Legal Consequences ◽  
The Unclos

Abstract In 2014 Japan’s Cabinet Order No. 302 declared the outer limits of its continental shelf beyond 200 nautical miles (OL) to the west and north of Oki-no-Tori Shima (Area 302). Oki-no-Tori Shima consists of two small, barren, and uninhabitable rocks in the West Pacific. The northern part of Area 302 is broader than what the 2012 recommendations of the Commission on the Limits of the Continental Shelf (CLCS) specify. A question arises whether Order No. 302 violates Article 76(8) of the United Nations Convention on the Law of the Sea (UNCLOS), which provides that the OL established by a coastal state ‘on the basis of’ the CLCS recommendations shall be final and binding. Another question is the role played by the CLCS in ‘assisting’ the coastal states to delimit their national jurisdiction so as to know where the Area (i.e., the Common Heritage of Mankind under UNCLOS Articles 1(1)(1) and 136) begins. The essential questions arising from Area 302 concern how well the UNCLOS mechanism can perform to safeguard the Common Heritage of Mankind through preventing encroachment thereupon by individual coastal states. This article looks at the context and explores the obligations implied by Article 76(8) for coastal states to ‘follow’ the recommendations in establishing the OL, with special reference to the northern part of Area 302. The article also examines legal consequences arising from a breach of these obligations.

scholarly journals Can the common fisheries policy achieve good environmental status in exploited ecosystems: The west of Scotland demersal fisheries example

2019 ◽  
Vol 211 ◽  
pp. 217-230 ◽  
Author(s):  
Alan R. Baudron ◽  
Natalia Serpetti ◽  
Niall G. Fallon ◽  
Johanna J. Heymans ◽  
Paul G. Fernandes
Keyword(s):  
The West ◽  
Environmental Status ◽  
Fisheries Policy ◽  
Good Environmental Status ◽  
The Common

scholarly journals Ética y nihilismo. A propósito de "On Contemporary Nihilism" de Aron Gurwitsch

1970 ◽  
Vol 7 ◽  
Author(s):  
Jesús M. Díaz Álvarez
Keyword(s):  
Second World War ◽  
Human Being ◽  
World War ◽  
The West ◽  
Common Base ◽  
Long Time ◽  
The Common ◽  
Aron Gurwitsch ◽  
Second World

RESUMENEl presente artículo es una exposición reflexiva del texto de Aron Gurwitsch "On Contemporary Nihilism". Escrito en plena conflagración mundial, su intención última es mostrar que el nihilismo, en tanto que fenómeno que define la situación de occidente desde el declive de las ideas racionalistas, es el sustrato común, la base de la que van a emerger, por un lado, el "nihilismo epistemológico", que afecta a los diferentes saberes (teóricos y prácticos), y, por el otro, el terrible hecho del totalitarismo. Frente a esta situación, Gurwitsch defenderá que la única manera de salir del nihilismo y recuperar la cordura y la dignidad del ser humano es volviendo a reactivar, en el sentido husserliano, el ideal racionalista, el famoso dar y recibir razones con el que un día nació la filosofía en Grecia.PALABRAS CLAVENIHILISMO-TOTALITARSMO-RACIONALIDAD-ABSOLUTOABTRACTThis article is an expostion and a reflection on Aron Gurwitsch´s "On Contemporary Nihilism". He worte this text during the Second World War and his ultimate intention was to show that nihilism, as the fact which defined the situation of the West since the decline of the rationalistic ideas, was the common base from which two phenomena arose. The first of them is the "epistemological nihilism", which affects our theoretical and practical disciplines. The second one is the terrible fact of totalitarianism. Taking this situation into account, Gurwitsch will maintain that the only way to overcome hilism and to recover the dignity of the human being is through the re-activation, in the husserlian sense, of the rationalist ideal, the famous "lógon diadónai" with which a long time ago philosophy was born in Greece.KEYWORDSNIHILISM-TOTALITARISM-RATIONALITY-ABSOLUTE

scholarly journals Human as a phenomenon of unity of corporeal and spiritual in various-system languages (based on the material of euphemisms in the English and Buryat languages)

2020 ◽  
pp. 58-66
Author(s):  
Oyuna Tsydendambaeva ◽  
Olga Dorzheeva
Keyword(s):  
Scientific Discourse ◽  
The Body ◽  
Linguistic Expression ◽  
The West ◽  
The World ◽  
Key Concepts ◽  
The Subject ◽  
The Common

This article is dedicated to the examination of euphemisms in the various-system languages – English and Buryat that contain view of the world by a human, and the ways of their conceptualization. Euphemisms remain insufficiently studied. Whereupon, examination of linguistic expression of the key concepts of culture is among the paramount programs of modern linguistics, need for the linguoculturological approach towards analysis of euphemisms in the languages, viewing it in light of the current sociocultural transformations, which are refer to euphemisms and values reflected by them. The subject of this research is the euphemisms in the English and Buryat languages, representing the semiosphere “corporeal and spiritual”. The scientific novelty consists in introduction of the previously unexamined euphemism in Buryat language that comprise semiosphere “corporeal and spiritual” into the scientific discourse. The analysis of language material testifies to the fact that in various cultures the topic of intimacy and sex is euphemized differently. The lexis indicating the intimate parts of the body is vividly presented in the West, while in Buryat language – rather reserved. The author also determines the common, universal, and nationally marked components elucidating the linguistic worldview of different ethnoses and cultures.

scholarly journals Structural connections between Urals and West Siberia: the common stage on the boundary of Permian and Triassic periods

2019 ◽  
Vol 488 (3) ◽  
pp. 294-297
Author(s):  
V. N. Smirnov ◽  
K. S. Ivanov
Keyword(s):  
West Siberia ◽  
Strike Slip ◽  
Middle Urals ◽  
The Urals ◽  
The West ◽  
Open Part ◽  
The Middle Urals ◽  
Eastern Zone ◽  
Structural Connections ◽  
The Common

40Ar/39Ar-dating of the micas from the schists and blastomylonites collected from the fault which separates the Eastern zone of the Middle Urals dipped under the cover of the West Siberian plate from the open part of the geologic structures of the Urals, showed that the last phase of deformation was represented by a submeridional sinistral strike-slip faults with the age of 251 Ma. The appearance of the analyzed deformations practically exactly coincides in time with the formation of the grabens of meridional strike at the base of the West Siberian plate. 

The Paleolithic of Trans-Baikal

1961 ◽  
Vol 26 (4) ◽  
pp. 486-497 ◽  
Author(s):  
A. P. Okladnikov ◽  
Chester S. Chard
Keyword(s):  
North China ◽  
Stone Tools ◽  
Upper Paleolithic ◽  
Eastern Asia ◽  
The West ◽  
The Third ◽  
Fish Bones ◽  
Woolly Rhinoceros ◽  
Third Stage ◽  
The Common

AbstractPaleolithic remains, mostly surface finds from blowouts, are known from 63 sites in the Trans-Baikal, one of the five large regional subdivisions of the Siberian Paleolithic. Most important recent discoveries are the stratified sites of Oshurkovo and Sannyi Mys and the Pleistocene faunal sequence on Tologoi Mountain. Characteristic stone tools are made from whole or split pebbles and from blades removed from prismatic cores. Bone artifacts, known only from Oshurkovo, include slotted points and knives and flat antler harpoons. The Trans-Baikal finds, all Upper Paleolithic in time, are tentatively arranged in five chronological stages. The earliest period is based on the lower levels at Sannyi Mys in which microblades, but no pebble tools, are found with woolly rhinoceros and mammoth. The next period is represented by large pebble tools and cores from Ust"-Kiakhta Locality 3. Typical Siberian pebble tools found with horse in the upper levels at Sannyi Mys are assigned to the third stage. The fourth is best known from Oshurkovo where all the common Siberian Paleolithic stone tools are found along with bone artifacts in deposits which contain abundant fish bones. A number of sites are assigned to the fifth stage, but it is best represented by the uppermost level at Oshurkovo where flakes, flaked pebbles, and small blade tools of regular outline replace the large blades and pebble cores of the earlier periods. This tentative sequence is strengthened by correlations with the Angara and Yenisei areas to the west and with Mongolia and North China to the east. The Trans-Baikal is seen as an area in which the prismatic core and blade tradition of Eurafrican origin and the split pebble-tool tradition of eastern Asia were in contact from the earliest known period.

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