The role of mineral exploration toward the year 2000

1988 ◽  
Vol 7 (2) ◽  
pp. 35-37
Author(s):  
Roy Woodall
Author(s):  
James Marlatt

ABSTRACT Many people may not be aware of the extent of Kurt Kyser's collaboration with mineral exploration companies through applied research and the development of innovative exploration technologies, starting at the University of Saskatchewan and continuing through the Queen's Facility for Isotope Research. Applied collaborative, geoscientific, industry-academia research and development programs can yield technological innovations that can improve the mineral exploration discovery rates of economic mineral deposits. Alliances between exploration geoscientists and geoscientific researchers can benefit both parties, contributing to the pure and applied geoscientific knowledge base and the development of innovations in mineral exploration technology. Through a collaboration that spanned over three decades, we gained insight into the potential for economic uranium deposits around the world in Canada, Australia, USA, Finland, Russia, Gabon, Namibia, Botswana, South Africa, and Guyana. Kurt, his research team, postdoctoral fellows, and students developed technological innovations related to holistic basin analysis for economic mineral potential, isotopes in mineral exploration, and biogeochemical exploration, among others. In this paper, the business of mineral exploration is briefly described, and some examples of industry-academic collaboration innovations brought forward through Kurt's research are identified. Kurt was a masterful and capable knowledge broker, which is a key criterion for bringing new technologies to application—a grand, curious, credible, patient, and attentive communicator—whether talking about science, business, or life and with first ministers, senior technocrats, peers, board members, first nation peoples, exploration geologists, investors, students, citizens, or friends.


2021 ◽  
Author(s):  
Hella Garny ◽  
Simone Dietmüller ◽  
Roland Eichinger ◽  
Aman Gupta ◽  
Marianna Linz

<p>The stratospheric transport circulation, or Brewer-Dobson Circulation (BDC), is often conceptually seperated into advection along the residual circulation and two-way mixing. In particular the latter part has recently been found to exert a strong influence on inter-model differences of mean age of Air (AoA), a common measure of the BDC. However, the precise reason for model differences in two-way mixing remains unknown, as many model<br>components in multi-model projects differ. One component that likely plays an important role is model resolution, both vertically and horizontally. To analyse this aspect, we carried out a set of simulations with identical and constant year 2000 climate forcing varying the spectral horizontal<br>resolution (T31,T42,T63,T85) and the number of vertical levels (L31,L47,L90). We find that increasing the vertical resolution leads to an increase in mean AoA. Most of this change can be attributed to aging by mixing. The mixing efficiency, defined as the ratio of isentropic mixing strength and the diabatic circulation, shows the same dependency on vertical resolution. While horizontal resolution changes do not systematically change mean AoA, we do<br>find a systematic decrease in the mixing efficiency with increasing horizontal resolution. Non-systematic changes in the residual circulation partly compensate the mixing efficiency changes, leading to the non-systematic mean AoA changes. The mixing efficiency changes with vertical and horizontal resolution are consistent with expectations on the effects of numerical dispersion on mean AoA. To further investigate the most relevant regions of mixing differences, we analyse height-resolved mixing efficiency differences. Overall, this work will help to shed light on the underlying reasons for the large biases of climate models in simulating stratospheric transport.</p>


1993 ◽  
Vol 2 (2) ◽  
pp. 156-166 ◽  
Author(s):  
G. N. Jadhav ◽  
V. Panchapakesan ◽  
K. C. Sahu

Author(s):  
Ashish Khaira ◽  
Ravi K. Dwivedi

Nondestructive testing (NDT) is a vital tool in maintenance. Each NDT technique has some benefits and hindrances; therefore, the selection is crucial. Generally, the selection of a technique relies on operating personnel experience, and very few research papers shows uses of the decision-making (DM) approach. It was highlighted by various researchers that if a proper DM approach is used, it will save time and increase fault detection reliability. By keeping this fact in mind, this chapter is an attempt to provide a detailed review of research work from the year 2000-2018 that covered the role of DM techniques while making combinations of NDT for effective condition monitoring. It observed from the literature that very few researchers effectively utilized the power of DM tool. The researcher can use the outcome of this work as a beacon and improve it further.


Land ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 359
Author(s):  
Mengina Gilli ◽  
Muriel Côte ◽  
Gretchen Walters

Community Resource Management Areas (CREMAs) in Ghana combine conservation and development objectives and were introduced in the year 2000. In some cases, they have connected collectors of shea (Vitellaria paradoxa) nuts with certified organic world markets, which can be understood as a ‘market-based’ approach to conservation. This paper examines how the benefits of this approach are distributed and argues that shea land formalization is crucial to this process. It makes this argument by drawing on interviews within two communities bordering Mole National Park. One community accepted to engage with, and benefitted from this approach, while the other did not. The paper analyzes narratives from different actors involved regarding why and how the market-based approach was accepted or rejected. It shows that, contrary to the neoliberal principles that underlie market-based conservation, a utility maximization rationale did not predominantly influence the (non-)engagement with this conservation approach. Instead, it was the history of land relations between communities and the state that influenced the decisions of the communities. We highlight the role of traditional authorities and NGOs brokering this process and unpack who in the communities profited and who was left out from benefits from this market-based conservation initiative.


2008 ◽  
Vol 36 (4) ◽  
pp. 567-574 ◽  
Author(s):  
V. Ramakrishnan

The determination of the high-resolution structures of ribosomal subunits in the year 2000 and of the entire ribosome a few years later are revolutionizing our understanding of the role of the ribosome in translation. In the present article, I summarize the main contributions from our laboratory to this worldwide effort. These include the determination of the structure of the 30S ribosomal subunit and its complexes with antibiotics, the role of the 30S subunit in decoding, and the high-resolution structure of the entire 70S ribosome complexed with mRNA and tRNA.


Author(s):  
Adriana Morales-Perlaza

RésuméCet article présente une analyse comparative historique et sociologique du rôle de l’État dans la mise en place des formations professionnelles à l’enseignement au Québec et en Ontario pendant les années 1960 à 2000. Nous sommes d’accord avec Peter Grimmett en ce que nous trouvons une gouvernance « politique » au Québec, mais nous argumentons que la gouvernance en Ontario ne peut pas être considérée comme « professionnelle », mais plutôt comme « corporative » selon la thèse de Terrence James Johnson. Au-delà des différences entre ces deux provinces, nous établissons des tendances historiques de la professionnalisation de l’enseignement dans ces deux cas qui sont semblables avec celles de l’Europe et qui démontrent l’importance du contrôle étatique sur l’évolution de la professionnalisation de l’enseignement, ce qui diffère de l’histoire de la plupart des professions établies analysées par les sociologues. AbstractThis paper presents a historical and sociological comparative analysis of the role of the state in the implementation of professional teacher education in Quebec and Ontario during the 1960s to the year 2000. We agree with Peter Grimmett that we find “political” governance in Quebec, but we argue that governance in Ontario cannot be considered “professional”, but rather “corporate” according to Terrence James Johnson's theoretical approach. Beyond the differences between these two provinces, we establish historical trends in the professionalization of teaching in these two cases, which are similar to those in Europe, and which demonstrate the importance of state control over the evolution of professionalization of teaching, which differs from the history of most established professions that have been analyzed by sociologists.


10.3823/813 ◽  
2017 ◽  
Vol 7 (3) ◽  
Author(s):  
Mouna Mohamad Alsaad

Bacterial keratitis can lead to severe vision loss and corneal scarring, and possibly perforation. Early and appropriate management is a key factor in decreasing and preventing complication. Pubmed and Medline were searched for articles related to Pseudomonas keratitis between year 2000 and  2017 to get current guidelines about the management of Pseudomonas keratitis. These articles are reviewed in this review article and information related to management is summarized.   The most used agents to treat Pseudomonas are either aminoglycosides (usually gentamicin) fortified with a cephalosporin or mono therapy with a fluoroquinolones usually ciprofloxacin. In most areas, most strains of Pseudomonasare sensitive to ciprofloxacin. The role of topical steroids is discussed, as well as, available options for treatment of multi drug resistant Pseudomonas.


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