scholarly journals Australia's landscapes in a changing climate—caution, hope, inspiration, and transformation

2012 ◽  
Vol 63 (3) ◽  
pp. 215 ◽  
Author(s):  
Jason Alexandra

Australia’s future landscapes will be shaped by global climatic, economic, and cultural drivers. Landscapes evolve. They are manifestations of the complex negotiations between nature and cultures, over millennia. In the Anthropocene, humans are the dominant evolutionary force reshaping the biosphere. Landscape management involves all human activities and interventions that change the forms and functions of landscapes. It also involves the ways we learn about, and understand the world, and our place in it. Responses to climate change are driving changes in natural resources policy, research and management. Building capability for large-scale, adaptive management is critical in an era of global change. By rigorously examining and learning from recent experience—bioregional conservation planning, natural resource management (NRM), landcare, and water reform—Australia can build capacity for integrated and adaptive resource management. Climate change compounds existing stressors on ecosystems. It adds complexity and presents new challenges for integrated assessment, planning, and management of natural resources. Given the dynamic nature of the ecosystems, static conservation paradigms and stationary hydrology models are increasingly redundant. In the face of inherent complexity and uncertainty, ‘predict and control’ strategies are likely to be less useful. Adaptive approaches are called for, due to the complex relationships and non-linear feedbacks between social, ecological, and climatic systems. Australia should invest in building professional and community capacity. Australia’s scientific and professional capacity in natural resources provides useful foundations, but substantially increased investment is called for. Research should be focused on guiding and influencing management at large scales and on avoiding undesirable thresholds or tipping points in complex ecological systems. Cultural and governance aspects are emphasised as central to effective adaptation strategies, because landscape management is an intergenerational, societal challenge that requires participatory, adaptive learning approaches.

Robotics ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 82
Author(s):  
Mohammed Abouheaf ◽  
Wail Gueaieb ◽  
Davide Spinello

The optimal tracking problem is addressed in the robotics literature by using a variety of robust and adaptive control approaches. However, these schemes are associated with implementation limitations such as applicability in uncertain dynamical environments with complete or partial model-based control structures, complexity and integrity in discrete-time environments, and scalability in complex coupled dynamical systems. An online adaptive learning mechanism is developed to tackle the above limitations and provide a generalized solution platform for a class of tracking control problems. This scheme minimizes the tracking errors and optimizes the overall dynamical behavior using simultaneous linear feedback control strategies. Reinforcement learning approaches based on value iteration processes are adopted to solve the underlying Bellman optimality equations. The resulting control strategies are updated in real time in an interactive manner without requiring any information about the dynamics of the underlying systems. Means of adaptive critics are employed to approximate the optimal solving value functions and the associated control strategies in real time. The proposed adaptive tracking mechanism is illustrated in simulation to control a flexible wing aircraft under uncertain aerodynamic learning environment.


2014 ◽  
Author(s):  
Patricia L. Winter ◽  
Susan Charnley ◽  
Jonathan W. Long ◽  
Frank K. Lake ◽  
Trista M. Patterson

2015 ◽  
Vol 3 (2) ◽  
pp. 262-265
Author(s):  
Dr.Navdeep Kaur

Since its evolution environment has remained both a matter of awe and concern to man. The frontier attitude of the industrialized society towards nature has not only endangered the survival of all other life forms but also threatened the very existence of human life. The realization of such potential danger has necessitated the dissemination of knowledge and skill vis-a-vis environment protection at all stages of learning. Therefore, learners of all stages of learning need to be sensitized with a missionary zeal. This may ensure transformation of students into committed citizens for averting global environment crisis. The advancement of science and technology made the life more and more relaxed and man also became more and more ambitious. With such development, human dependence on environment increased. He consumed more resources and the effect of his activities on the environment became more and more detectable. Environment covers all the things present around the living beings and above the land, on the surface of the earth and under the earth. Environment indicates, in total, all of peripheral forces, pressures and circumstances, which affect the life, nature, behaviour, growth, development and maturation of living beings. Irrational exploitation (not utilization) of natural resources for our greed (not need) has endangered our survival, and incurred incalculable harm. Environmental Education is a science, a well-thought, permanent, lasting and integrated process of equipping learning experiences for getting awareness, knowledge, understanding, skills, values, technical expertise and involvement of learners with desirable attitudinal changes about their relationship with their natural and biophysical environment. Environmental Education is an organized effort to educate the masses about environment, its functions, need, importance, and especially how human beings can manage their behaviour in order to live in a sustainable manner.  The term 'environmental awareness' refers to creating general awareness of environmental issues, their causes by bringing about changes in perception, attitude, values and necessary skills to solve environment related problems. Moreover, it is the first step leading to the formation of responsible environmental behaviour (Stern, 2000). With the ever increasing development by modern man, large scale degradation of natural resources have been occurred, the public has to be educated about the fact that if we are degrading our environment we are actually harming ourselves. To encourage meaningful public participation and environment, it is necessary to create awareness about environment pollution and related adverse effects. This is the crucial time that environmental awareness and environmental sensitivity should be cultivated among the masses particularly among youths. For the awareness of society it is essential to work at a gross root level. So the whole society can work to save the environment.


2000 ◽  
Vol 151 (3) ◽  
pp. 80-83
Author(s):  
Pascal Schneider ◽  
Jean-Pierre Sorg

In and around the state-owned forest of Farako in the region of Sikasso, Mali, a large-scale study focused on finding a compromise allowing the existential and legitimate needs of the population to be met and at the same time conserving the forest resources in the long term. The first step in research was to sketch out the rural socio-economic context and determine the needs for natural resources for autoconsumption and commercial use as well as the demand for non-material forest services. Simultaneously, the environmental context of the forest and the resources available were evaluated by means of inventories with regard to quality and quantity. According to an in-depth comparison between demand and potential, there is a differentiated view of the suitability of the forest to meet the needs of the people living nearby. Propositions for a multipurpose management of the forest were drawn up. This contribution deals with some basic elements of research methodology as well as with results of the study.


2019 ◽  
Vol 19 (1) ◽  
pp. 4-16 ◽  
Author(s):  
Qihui Wu ◽  
Hanzhong Ke ◽  
Dongli Li ◽  
Qi Wang ◽  
Jiansong Fang ◽  
...  

Over the past decades, peptide as a therapeutic candidate has received increasing attention in drug discovery, especially for antimicrobial peptides (AMPs), anticancer peptides (ACPs) and antiinflammatory peptides (AIPs). It is considered that the peptides can regulate various complex diseases which are previously untouchable. In recent years, the critical problem of antimicrobial resistance drives the pharmaceutical industry to look for new therapeutic agents. Compared to organic small drugs, peptide- based therapy exhibits high specificity and minimal toxicity. Thus, peptides are widely recruited in the design and discovery of new potent drugs. Currently, large-scale screening of peptide activity with traditional approaches is costly, time-consuming and labor-intensive. Hence, in silico methods, mainly machine learning approaches, for their accuracy and effectiveness, have been introduced to predict the peptide activity. In this review, we document the recent progress in machine learning-based prediction of peptides which will be of great benefit to the discovery of potential active AMPs, ACPs and AIPs.


Author(s):  
Leif Wenar

Article 1 of both of the major human rights covenants declares that the people of each country “shall freely dispose of their natural wealth and resources.” This chapter considers what conditions would have to hold for the people of a country to exercise this right—and why public accountability over natural resources is the only realistic solution to the “resource curse,” which makes resource-rich countries more prone to authoritarianism, civil conflict, and large-scale corruption. It also discusses why cosmopolitans, who have often been highly critical of prerogatives of state sovereignty, have good reason to endorse popular sovereignty over natural resources. Those who hope for more cosmopolitan institutions should see strengthening popular resource sovereignty as the most responsible path to achieving their own goals.


Sign in / Sign up

Export Citation Format

Share Document