An early pliocene pollen assemblage from Lake Tay, south-western Australia, and its phytogeographic implications

1981 ◽  
Vol 29 (3) ◽  
pp. 277 ◽  
Author(s):  
AN Bint
Keyword(s):  
Regional Differentiation ◽  
Pollen Spectrum ◽  
Pollen Assemblage ◽  
Early Pliocene ◽  
The Past ◽  
South West ◽  
Open Forest ◽  
Short Period ◽  
Eastern Australia ◽  
Warm Temperate

Pollen assemblages indicate an Early Pliocene age for sediments in the Lake Tay area, south-west of Norseman, W.A. They also show unexpected similarities to assemblages of the same age from south-eastern Australia and suggest that regional phytogeographic differentiation of the flora of southern Australia was less pronounced in the Early Pliocene than usually supposed. This implies that considerable regional differentiation of southern Australian floras has taken place in a relatively short period, principally during the past 4 or 5 million years. Although the dominant elements in the pollen spectrum indicate a warm temperate open-forest with a lake edge or marsh component, small numbers of the pollen of Nothofagus (brassii-type) and some podocarpaceous conifers are also present. These suggest a wetter climate and may have derived from small stands surviving in refugia on high country to the east or south of Lake Tay.

Development of disease caused by Phytophthora cinnamomi in mature Xanthorrhoea australis

2001 ◽  
Vol 49 (2) ◽  
pp. 209 ◽  
Author(s):  
M. J. Aberton ◽  
B. A. Wilson ◽  
J. Hill ◽  
D. M. Cahill
Keyword(s):  
Phytophthora Cinnamomi ◽  
Central Area ◽  
Sharp Decline ◽  
Disease Symptoms ◽  
Stem Apex ◽  
The Past ◽  
Open Forest ◽  
Eastern Australia ◽  
Mineral Transport ◽  
Dead Plant

Over the past 30 years, heathland and open forest communities in south-eastern Australia dominated by Xanthorrhoea australis R.Br. have been severely affected by disease caused by Phytophthora cinnamomi Rands. The disease has caused a sharp decline in numbers of individuals within populations of X. australis; however, the etiology of the disease is unclear. The characteristics and disease symptoms induced by P. cinnamomi were analysed within nine mature X. australis plants that had been removed from the field. Seven plants showed typical disease symptoms that ranged from chlorotic leaves through to plant death. Plants showing disease symptoms had different numbers of infected roots, ranging from 0% in one dead plant, 40% infected roots in a plant showing yellowing of leaf tips and 67 and 86%, respectively, in two plants with severe chlorosis. There was variation within the roots, with some infected close to the stem while others were infected at more distal regions. Within stems of all plants, P. cinnamomi was difficult to isolate but was found in the desmium and stem apex and was associated with massive lesions within the central area of the stem. The symptoms of disease in X. australis are caused by a combination of damage to tissues of the roots and stem that may lead to a reduction in water and mineral transport throughout the plant.

The Origin of the Moon and its Relationship to the Origin of the Solar System

1962 ◽  
Vol 14 ◽  
pp. 133-148 ◽  
Author(s):  
Harold C. Urey
Keyword(s):  
Solar System ◽  
The Moon ◽  
The Past ◽  
The Earth ◽  
Short Period ◽  
Origin Of The Moon

During the last 10 years, the writer has presented evidence indicating that the Moon was captured by the Earth and that the large collisions with its surface occurred within a surprisingly short period of time. These observations have been a continuous preoccupation during the past years and some explanation that seemed physically possible and reasonably probable has been sought.

scholarly journals Our New Cathedrals: Spirituality and Old-Growth Forests in Western Australia

2006 ◽  
Vol 3 (1) ◽  
Author(s):  
David Worth
Keyword(s):  
Social Movements ◽  
Western Australia ◽  
The State ◽  
The South ◽  
Old Growth ◽  
The Past ◽  
South West ◽  
Old Growth Forests ◽  
Heated Debate ◽  
Policy Proposals

Over the past 30 years in Western Australia (WA), there has been heated debate about the future use of the remaining karri and jarrah forests in the south-west of the State. This debate revolves around policy proposals from two social movements: one wants to preserve as much of the remaining old-growth forests as possible, and an opposing movement supports a continued

RAPIDLY GROWING DYSEMBRYOPLASTIC NEUROEPITHELIAL TUMOR

Neurosurgery ◽  
2006 ◽  
Vol 59 (6) ◽  
pp. E1337-E1338 ◽  
Author(s):  
Oltea Sampetrean ◽  
Taketoshi Maehara ◽  
Nobutaka Arai ◽  
Tetsuo Nemoto
Keyword(s):  
Complex Form ◽  
Interesting Case ◽  
Labeling Index ◽  
Pathological Examination ◽  
Dysembryoplastic Neuroepithelial Tumor ◽  
Complex Partial Seizures ◽  
Ki 67 ◽  
The Past ◽  
Short Period ◽  
Postoperative Diagnosis

Abstract OBJECTIVE During the past 15 years, the concept of dysembryoplastic neuroepithelial tumors has continued to evolve. We present an interesting case of dysembryoplastic neuroepithelial tumor that showed rapid growth during a short period of time. CLINICAL PRESENTATION A 9-year-old boy had been experiencing intractable complex partial seizures since the age of 7 years. Magnetic resonance imaging scans demonstrated a well-demarcated 3.5-cm lesion with a 1.5-cm ring-enhanced core in the left temporal lobe. One month later, the lesion had rapidly grown to occupy three times more space than on the first evaluation, with the ring-enhanced core reaching approximately five times its initial volume. INTERVENTION A combined tumor removal and epileptogenic focus resection surgery was performed immediately. In the pathological examination, the presence of the specific glioneuronal element with a Ki-67 labeling index of lower than 1%, as well as the glial component with a Ki-67 labeling index of 8%, led to a postoperative diagnosis of dysembryoplastic neuroepithelial tumor, complex form. No adjuvant therapy was performed. Five years after surgery, there is no evidence of any recurrence and the boy continues to be seizure free without antiepileptic drugs. CONCLUSION The lesion did not behave as a stable benign entity as it is generally accepted, and is, therefore, presented as an argument in favor of an early and complete resection.

The Africa Bureau, London

1964 ◽  
Vol 2 (2) ◽  
pp. 292-294
Author(s):  
Peter Calvocoressi
Keyword(s):  
South Africa ◽  
West Africa ◽  
United Nations ◽  
Accurate Information ◽  
Physical Size ◽  
Informal Group ◽  
The Past ◽  
African People ◽  
South West ◽  
South West Africa

It is not easy to describe the objects, still less the activities, of the Africa Bureau in a few words. It is one of those organisations whose ambitions and influence are much greater than its physical size.If you look at the dominating purpose behind the activities of the past 12 years, you will find it in the Bureau's sympathy with and determination to promote African independence. It was established in 1952 to provide accurate information particularly on the aims and hopes of African nationalism, to oppose unfair discrimination, and to encourage development in Africa. The need for such an organisation in Britain had been recognised primarily by Rev. Michael Scott, who on returning from South Africa sought help from people in Britain for the African people of South West Africa. An informal group advising on the intricate political and constitutional issues involved in bringing South West Africa's plight before the United Nations provided the nucleus from which the Africa Bureau grew, and since 1948, Michael Scott, honorary director of the Bureau, has attended the U.N. and given evidence as personal representative of Chief Hosea Kutako of the Hereros.

scholarly journals Secular changes of anthropometric measures for the past 30 years in South-West Germany

2009 ◽  
Vol 63 (12) ◽  
pp. 1440-1443 ◽  
Author(s):  
G Nagel ◽  
M Wabitsch ◽  
C Galm ◽  
S Berg ◽  
S Brandstetter ◽  
...  
Keyword(s):  
West Germany ◽  
Anthropometric Measures ◽  
Secular Changes ◽  
The Past ◽  
South West

II.—Notes on the Pleistocene of the North-West Territories of Canada, North-West and West of Hudson Bay

1894 ◽  
Vol 1 (9) ◽  
pp. 394-399 ◽  
Author(s):  
J. Burr Tyrrell
Keyword(s):  
Geological Survey ◽  
Hudson Bay ◽  
North West ◽  
The Past ◽  
North Shore ◽  
The North ◽  
South West ◽  
North West Territories

In the extreme northernmost part of Canada, lying between North Latitudes 56° and 68° and West Longitudes 88° and 112°, is an area of about 400,000 square miles, which had up to the past two years remained geologically unexplored.In 1892 the Director of the Geological Survey of Canada sent the writer to explore the country north of Churchill River, and south-west of Lake Athabasca;in1893 the exploration was continued northward, along the north shore of Athabasca Lake

scholarly journals AT VENDE TILBAGE TIL UKENDTE STEDER - POSTHUKOMMELSE OG STED HOS JACOB DAMMAS, JACOB KOFLER OG MAJA MAGDALENA SWIDERSKA

1970 ◽  
Vol 42 (117) ◽  
pp. 113-130
Author(s):  
Anna Estera Mrozewicz
Keyword(s):  
Second Generation ◽  
Cultural Trauma ◽  
Documentary Films ◽  
The Past ◽  
Personal Stories ◽  
Short Period ◽  
Personal Approach ◽  
Personal Trauma ◽  
Related Identity ◽  
Theoretical Reflection

RETURNING TO UNFAMILIAR PLACES. PLACE AND POSTMEMORY IN THE WORKS OF JACOB DAMMAS, JACOB KOFLER, AND MAJA MAGDALENA SWI-DERSKA | The emigration of three thousand Polish-Jewish citizens to Denmark as a result of the events in March 1968 in Poland has only recently attracted attention from filmmakers and writers in Denmark. Two documentary films and a novel, created within a relatively short period of time, deal with the topic: Jacob Kofler’s Statsløs (Stateless), 2004, Jacob Dammas’ Kredens (Dresser), 2007, and Maja Magdalena Swiderska’s The Border Breaking Bunch, 2008. The authors are all children of refugees and represent second generation in relation to the cultural trauma of exile. The article examines aesthetic approaches developed by the authors as they (re)tell personal stories, which are mediated through various strategies of postmemory (Hirsch 1997). Postmemory is distinguished from memory by a non-indexical relation to the past and a generational distance, and from history by a highly personal approach. However, it is not addressed here as a psychological category. On the contrary, I argue that postmemory can be viewed as both an analytical and a narrative and aesthetic tool. Questions of place and place-related identity are relevant and inseparable from the three authors’ creative reimaginings of the cultural and personal trauma. Thus, the article focuses on the concepts of place and postmemory, and their interdependencies in the analysed works. Close readings are combined with theoretical reflection, which allows the objects and theories to illuminate each other.

scholarly journals Bottom environmental changes during the past 100 years in Kitanada Bay, Ehime Prefecture, South-west Japan

2004 ◽  
Vol 110 (9) ◽  
pp. 518-527 ◽  
Author(s):  
Atsuko Amano ◽  
Takahiko Inoue ◽  
Naoya Iwamoto ◽  
Fujihiko Shioya ◽  
Yoshio Inouchi
Keyword(s):  
Environmental Changes ◽  
The Past ◽  
South West
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