Evolution of the Australian landscape

2001 ◽  
Vol 52 (1) ◽  
pp. 13 ◽  
Author(s):  
C. D. Ollier
Keyword(s):  
Inorganic Chemistry ◽  
Significant Role ◽  
Time Scale ◽  
Landscape Evolution ◽  
Biological Evolution ◽  
Lateral Movement ◽  
Weathered Rock ◽  
The Past ◽  
Global Tectonics ◽  
Natural Laboratory

Landscape evolution of Australia is on the same time scale as global tectonics and biological evolution. In places, actual landforms and deep weathering products are hundreds of millions of years old. Much of Australia has a landscape resulting from stripping of weathered rock after an earlier period of very deep weathering. Other regions have sequential landforms that provide a natural laboratory where we can work out the biogeochemistry of the past. Landforms and regolith reveal the long evolution of groundwater in Australia. Lateral movement of groundwater is of paramount importance. The effects of past climates are stored in the landscape. They show that the present is not the key to the past, and former environments must be worked out from consistent internal evidence rather than the application of models based on present-day conditions. Inorganic chemistry alone is inadequate to explain many earth materials, and biology, especially microbiology, has a very significant role. Recent and present-day processes also affect the landscape, and it cannot be assumed that because the landscape and regolith are old the soils are old. Many regions have a complex regolith cover that shows modern processes working on inherited materials.

Nucleosides and Nucleoside Analogues as Emerging Antiviral Drugs

2020 ◽  
Vol 17 ◽  
Author(s):  
Mohamed Ibrahim Elzagheid
Keyword(s):  
Significant Role ◽  
Mode Of Action ◽  
Crucial Role ◽  
Viral Infections ◽  
Antiviral Drugs ◽  
Review Article ◽  
Nucleoside Analogues ◽  
The Past ◽  
Nucleoside Drugs

: Nucleosides and their analogues have been in use for many years and have become essential for treating patients with viral infections. Many additional nucleoside drugs have been approved over the past decades. This strongly demonstrates how important these compounds are and the crucial role they play. Given that a significant amount of research and literature has been documented regarding nucleoside analogues, this review article mainly focuses the discussion on nucleosides and nucleoside analogous that have proven to play significant role or be emerging in the treatment of known viral infections. This covers the names, structures, applications, toxicity, and mode of action of relevant nucleoside analogues.

Soul of Classicality in Western Architectural Design

2014 ◽  
Vol 638-640 ◽  
pp. 2253-2256
Author(s):  
Cong Ru Liu ◽  
Ming Sen Lin ◽  
Qing Li
Keyword(s):  
Significant Role ◽  
Architectural Design ◽  
Ancient Greece ◽  
Architecture Design ◽  
Ancient Rome ◽  
The Past ◽  
Renaissance Period

The classicality of the western architecture establishes its foundation at the beginning of the ancient Greece, is flourished in the ancient Rome and revitalized in the renaissance period, extends to the classicism and the classical revival, and finally is overthrown by the postmodernism. By going through development and prosperity in the past thousands of years, the classical spirit has always played a greatly significant role in the field of western architecture design.

The human brain: Chairman’s introduction

1981 ◽  
Vol 292 (1057) ◽  
pp. 151-153
Keyword(s):  
Human Brain ◽  
Cultural Evolution ◽  
Positive Feedback ◽  
Time Scale ◽  
Biological Evolution ◽  
Internal Models ◽  
Adaptive Behaviour ◽  
Myelin Sheaths ◽  
The Brain

Much has been said at the symposium about the pre-eminent role of the brain in the continuing emergence of man. Tobias has spoken of its explosive enlargement during the last 1 Ma, and how much of its enlargement in individual ontogeny is postnatal. We are born before our brains are fully grown and ‘wired up ’. During our long adolescence we build up internal models of the outside world and of the relations of parts of our bodies to it and to one another. Neurons that are present at birth spread their dendrites and project axons which acquire their myelin sheaths, and establish innumerable contacts with other neurons, over the years. New connections are formed; genetically endowed ones are stamped in or blanked off. People born without arms may grow up to use their toes in skills that are normally manual. Tobias, Darlington and others have stressed the enormous survival value of adaptive behaviour and the ‘positive feedback’ relation between biological and cultural evolution. The latter, the unique product of the unprecedentedly rapid biological evolution of big brains, advances on a time scale unknown to biological evolution.

Perspectives on the active volcanoes of China

2021 ◽  
pp. SP510-2021-87
Author(s):  
Jiandong Xu ◽  
Clive Oppenheimer ◽  
James O. S. Hammond ◽  
Haiquan Wei
Keyword(s):  
Hainan Island ◽  
Special Volume ◽  
Quarter Century ◽  
The Past ◽  
Special Publication ◽  
Current State ◽  
International Collaborations ◽  
Comprehensive Survey ◽  
Natural Laboratory ◽  
Active Volcanoes

AbstractChina ishas a rich record of Holocene volcanism that is relatively little known outside the country. It is encountered in home to a number of volcanoes that have erupted in the Holocene. These range from large stratovolcanoes in the northeast, linked to subduction of the pPacific plate (e.g., Changbaishan); in , more diffuse volcanismsmaller volcanoes on the edges of the TibetTibetan margin, linked toassociated with the collision of India and AEurasia (e.g., Tengchong, Ashishan), and more isolated regions of volcanismcentres possibly linked topossibly resulting from mantle upwelling (e.g., volcanoes in Hainan island). This makes China a natural laboratory for studyingstudies of intraplate volcanism, yet the study of volcanology in China is young, with a significant increase in research only over the last 25 yearsand significant progress in understanding its nature and origins has been made over the past quarter century. To highlight recent advances and the current state of knowledge, thisHere, we introduce the first publication in English to provide a comprehensive survey of the state of knowledge and research highlights. special volume presents the first compilation of research on the active volcanoes of China in English. This first paper introduces the book, which coversAccordingly, we provide an overview of the dynamics, geology, geochemistry, volcanic histories and geophysical studies of the 14 volcanoesvolcanic areas that have erupted in theassociated with Holocene documented thus far. Our hope is that this special publication acts as The special publication represents a benchmark reference on the topic but, as importantly, we hope it will stimulatea resource to allow new, international collaborations to be developed to help understandaimed at deepening our understanding of the origins, history, hazards and associated risks from future eruptions of China's volcanoes.

scholarly journals Transitional Justice in the Middle East and North Africa – Taking Account of Islam

2017 ◽  
Vol 14 (1) ◽  
Author(s):  
Hakeem O. Yusuf
Keyword(s):  
Middle East ◽  
Significant Role ◽  
North Africa ◽  
Transitional Justice ◽  
Social Transformation ◽  
Cultural Value ◽  
The Core ◽  
The Past ◽  
Justice Process ◽  
Islamic Values

AbstractThe core of the argument of this article is that the integration of Islamic notions of justice into transitional justice mechanisms in the MENA makes for a more viable and sustainable transitional justice process in the region. This would mean a critical cultural value in the MENA is given a place in dealing with the past and mapping out a sustainable future in the region. The argument here is premised on the logic that a social transformation-focused enterprise like transitional justice ought to engage with Islam for sustainable outcomes in societies in the MENA where Islam is very influential. Given the significant role and influence of Islam on cultural, socio-political and legal institutions in the MENA, a process of transitional justice that takes account of Islamic values and practices is important for negotiating justice and institutionalising reforms in societies in the region.

Introductory remarks

1977 ◽  
Vol 280 (972) ◽  
pp. 105-105
Keyword(s):  
Climatic Change ◽  
Food Supply ◽  
Time Scale ◽  
Food Production ◽  
Rapid Change ◽  
Climatic Fluctuations ◽  
The Past ◽  
Wide Range ◽  
The Subject ◽  
Different Sources

In the last year or two there has been a remarkable increase in the interest, both popular and scientific, in the subject of climatic change. This stems from a recognition that even a highly technological society is vulnerable to the effects of climatic fluctuations and indeed may become more so, as margins of surplus food production are reduced, and nations become more interdependent for their food supply. In this respect our concern is with quite small changes - a degree (Celsius) or less in temperature and 10 % or so in rainfall. Probably we may discount some of the more alarmist suggestions of an imminent and rapid change towards near glacial conditions as these are based on very sketchy evidence. However, whatever the time-scale of climatic fluctuations with which we are concerned, we may hope to learn a great deal which is relevant to the factors which will control our future climate from the study of its more extreme vagaries in the past. Information relevant to the weather in such extreme periods is coming forward in increasing detail and volume from a wide range of disciplines. The variety of the evidence, its lack of precision as a strict measure of climate, and the number of different sources all make it difficult for an individual to build up a clear picture of past climates. However such a picture is needed, if explanations and interpretation are to be possible. Ideally one would need a synchronous picture of the climate of the whole world at selected epochs in the past. Various international programmes are directed to forming such pictures.

scholarly journals The Employee Associations and their Relations with the Overall Management of Universities in Peshawar: Issues and Barriers

2020 ◽  
Vol V (II) ◽  
pp. 22-31
Author(s):  
Waqar Un Nisa Faizi ◽  
Anila Fatima Shakil ◽  
Wilayat Bibi
Keyword(s):  
Significant Role ◽  
Research Paper ◽  
Advisory Committees ◽  
Task Forces ◽  
The Past ◽  
Academic Review ◽  
The University ◽  
The Relationship

Employee associations serve as resources of interested employees in helping the advisory committees and the staff task forces. Besides, they may also help in publicizing information of interest, procedures, and policy to employees and participate actively in the process of academic review. In universities, a significant role is played by employees unions. Unlike Employee unions, the existence of employee associations differs a lot. Many benefits can be gained from the relationship between the management of the University and employee association. It has been found that in the past, universities in Pakistan have failed to revive and engage with their employees, due to which effectiveness was lost majorly by the associations present in the universities. This research paper will critically reflect upon the relationship between the employee association and the overall management of the universities of Peshawar. Further, it will also identify the significant barriers and issues faced by the employees associations.

scholarly journals Historia global o las geografías del pasado. Implicaciones de la perspectiva global y geográfica en la escritura de la historia / Global History or the Geographies of the Past: Implications of a Global and Geographical Perspective in the Writing of History

2017 ◽  
pp. 91
Author(s):  
Francisco Javier Navarro Jiménez
Keyword(s):  
Time Scale ◽  
Global Perspective ◽  
Global History ◽  
Field Of Study ◽  
The Past ◽  
Longue Duree ◽  
Longue Durée ◽  
Geographical Perspective ◽  
Ultimate Purpose ◽  
Sobre Todo

ResumenLa historia global es un campo de estudios emergente. En la aproximación al pasado desde esta perspectiva, el giro territorial y la escala de la larga duración son elementos centrales, con lo que ello supone de solapamientos metodológicos y epistemológicos con otras disciplinas, sobre todo con la geografía. Esta perspectiva ofrece abundantes beneficios, pero también se deben considerar los riesgos que supone. A través de ejemplos concretos de obras escritas desde este campo, el artículo discute la vigencia de conceptos como globalización y ecúmene, pero también cuestiones metodológicas como la larga duración y el determinismo geográfico. Se pretende con ello identificar posibilidades, fortalezas y riesgos en la escritura de la historia global.Palabras claveHistoria global, geografía, territorio, larga duración, solapamientos metodológicos.AbstractGlobal history is an emergent field of study today. To apprehend the past from a global perspective, territorial turn and longue durée time scale become pivotal concepts, with the corresponding methodologic and epistemological overlaps with other disciplines, especially geography. Many benefits can be obtained from this perspective, but there are also risks that need to be considered. Through specific examples of works written from this field, this article examines the validity of concepts of globalization and ecumene, and discusses methodologic aspects related to the longue durée and geographic determinism. The ultimate purpose of it is to identify possibilities, strengths and risks in the writing of global history.Key WordsGlobal history, geography, territory, longue durée, methodologic overlaps.

scholarly journals Technoversal Leader: Triumphant Leader of the Technological Era

2020 ◽  
Vol 23 (1) ◽  
pp. 440
Author(s):  
Hakan Kapucu
Keyword(s):  
Significant Role ◽  
Scientific Knowledge ◽  
New World ◽  
World Order ◽  
Digital Transformation ◽  
Business Leaders ◽  
Data Driven ◽  
Critical Component ◽  
New World Order ◽  
The Past

The new world order reminds disruptions and turmoil. Exponentially-developing technology plays a significant role in causing these radical changes. These rapidly-changing conditions affect leaders with all humans. As scientific knowledge, digital transformation, technology is a backbone at the point that humanity has reached. Thus, it has become a critical component, which affects leader behaviors and the skillset expected from them. In this context, this article introduces a new leader who distinguishes from other styles. This distinction arises from the skills that leaders must adopt in the future are different than the past, from the reality of the earth’s being on the edge of collapse, business leaders’ being obliged to act upon it. And along with these specific behaviors, the leaders’ having data-driven mindsets, being technology adept.

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