The Role of Supercomputers in Astronomical Modelling

1990 ◽  
Vol 8 (04) ◽  
pp. 319-326
Author(s):  
D. J. Faulkner
Keyword(s):  
Human Mind ◽  
Computational Techniques ◽  
Scientific Content ◽  
Vector Processing ◽  
Special Cases ◽  
Subject Areas ◽  
Traditional Approaches ◽  
Pictorial Representations ◽  
Physical Phenomena

Abstract Advances in digital computer technology since the middle decades of the twentieth century have transformed many subject areas in astrophysics. Topics which had previously been dealt with by analytic approximations (usually to a very limited number of special cases) suddenly became amenable to detailed numerical modelling for all cases. Frequently, insights derived from this modelling ran ahead of other techniques in predicting physical phenomena before they were either observed or discerned in purely analytic treatments. It has sometimes been said that the second half of this century has seen the advent of a totally new modus operandi in scientific research, which ranks alongside the two traditional approaches–experimentation and theory. The most powerful computers now available have greatly accelerated these developments. They employ simultaneous computational techniques (either vector processing or parallel processing, or both), and their throughput is so large that, for most problems, the only way in which the human mind can fully appreciate the scientific content of the numerical results being calculated is by transforming those results into pictorial representations. This paper draws on my experience as Academic Director of the ANU Supercomputer Facility during the first eighteen months of its operation, to describe the place which I believe super-computers will occupy in the development of astrophysics during the 1990s and into the next century.

scholarly journals Shape as a Cognitive Archetype of the English Linguoculture

2020 ◽  
Vol 6 (8) ◽  
pp. 304-311
Author(s):  
E. Savitskaya
Keyword(s):  
Mental States ◽  
Human Mind ◽  
Abstract Thinking ◽  
Straight Line ◽  
Adequate Understanding ◽  
The World ◽  
Subject Areas ◽  
Clear Presentation ◽  
Genuine Knowledge

The article is devoted to revealing the cultural and historic continuity of eidetic and abstract thinking and their structural parallelism. The author describes the cognitive archetype “Shape” in English linguoculture, shows what subject areas are modelled by using the above-mentioned archetype (mental states / properties, action and its effect, objective circumstances etc.) and points out the importance of the cognitive archetype in question for modern abstract thinking and modelling of reality. The role of the cognitive archetype “Configuration of objects” for abstract thinking and modelling of reality is emphasized. In particular, it has been demonstrated that among representatives of English linguoculture the image of a straight line is often associated with simplicity, truthfulness, honesty, sincerity, rejecting ambiguity in expressing thoughts, spontaneity, whereas the image of a curved line is often associated with complexity, deceit, insincerity, hypocrisy, resourcefulness, fraud, wrongness, deviation from the norm, standard, from a simple and clear presentation of thoughts. The author notes that the numerous language examples given in the article indicate an important circumstance in the field of cognitive science: a person does not believe that he has deeply understood the structure and essence of a non-perceivable object until he imagines its spatial outlines. The author states that information about the environment is received through sensory channels, with further processing of the information received through the channels, constructing abstract notions from sensory images, but, as can be seen from the examples, never loses connection with the images. The author also notes that man is an intelligent primate; his picture of the world, figuratively speaking, is a building of the human mind based on ape’s sensations. But the sensations that man has inherited from his animal ancestors do not prevent him from gaining genuine knowledge, developing abstract thinking, and achieving an adequate understanding of the world.

scholarly journals Structural Interpretation of Vector Autoregressions with Incomplete Identification: Revisiting the Role of Oil Supply and Demand Shocks

2019 ◽  
Vol 109 (5) ◽  
pp. 1873-1910 ◽  
Author(s):  
Christiane Baumeister ◽  
James D. Hamilton
Keyword(s):  
Supply And Demand ◽  
Vector Autoregressions ◽  
Prior Beliefs ◽  
Oil Supply ◽  
Supply And Demand Shocks ◽  
Special Cases ◽  
Jel C32 ◽  
Traditional Approaches ◽  
Inventory Accumulation

Traditional approaches to structural vector autoregressions (VARs) can be viewed as special cases of Bayesian inference arising from very strong prior beliefs. These methods can be generalized with a less restrictive formulation that incorporates uncertainty about the identifying assumptions themselves. We use this approach to revisit the importance of shocks to oil supply and demand. Supply disruptions turn out to be a bigger factor in historical oil price movements and inventory accumulation a smaller factor than implied by earlier estimates. Supply shocks lead to a reduction in global economic activity after a significant lag, whereas shocks to oil demand do not. (JEL C32, L71, Q35, Q43)

E-Projects Challenges in India – Role of Human Resource Management and Technology

2018 ◽  
Vol 6 (8) ◽  
pp. 263
Author(s):  
Ramnik Kaur
Keyword(s):  
Developing Countries ◽  
Public Administration ◽  
Paradigm Shift ◽  
Successful Implementation ◽  
The Public ◽  
Government Services ◽  
The Past ◽  
The Government ◽  
Traditional Approaches

E-governance is a paradigm shift over the traditional approaches in Public Administration which means rendering of government services and information to the public by using electronic means. In the past decades, service quality and responsiveness of the government towards the citizens were least important but with the approach of E-Government the government activities are now well dealt. This paper withdraws experiences from various studies from different countries and projects facing similar challenges which need to be consigned for the successful implementation of e-governance projects. Developing countries like India face poverty and illiteracy as a major obstacle in any form of development which makes it difficult for its government to provide e-services to its people conveniently and fast. It also suggests few suggestions to cope up with the challenges faced while implementing e-projects in India.

scholarly journals Does Spelling Still Matter—and If So, How Should It Be Taught? Perspectives from Contemporary and Historical Research

2021 ◽  
Author(s):  
Steven C. Pan ◽  
Timothy C. Rickard ◽  
Robert A. Bjork
Keyword(s):  
Approaches To Teaching ◽  
Traditional Methods ◽  
High Stakes ◽  
Early 21St Century ◽  
Relevant Evidence ◽  
Spelling Instruction ◽  
English Speaking ◽  
The Subject ◽  
Traditional Approaches

AbstractA century ago, spelling skills were highly valued and widely taught in schools using traditional methods, such as weekly lists, drill exercises, and low- and high-stakes spelling tests. That approach was featured in best-selling textbooks such as the Horn-Ashbaugh Speller of 1920. In the early 21st century, however, skepticism as to the importance of spelling has grown, some schools have deemphasized or abandoned spelling instruction altogether, and there has been a proliferation of non-traditional approaches to teaching spelling. These trends invite a reevaluation of the role of spelling in modern English-speaking societies and whether the subject should be explicitly taught (and if so, what are research-supported methods for doing so). In this article, we examine the literature to address whether spelling skills are still important enough to be taught, summarize relevant evidence, and argue that a comparison of common approaches to spelling instruction in the early 20th century versus more recent approaches provides some valuable insights. We also discuss the value of explicit spelling instruction and highlight potentially effective ways to implement such instruction, including the use of spelling tests. Overall, our goals are to better characterize the role of spelling skills in today’s society and to identify several pedagogical approaches—some derived from traditional methods and others that are more recent—that hold promise for developing such skills in efficient and effective ways.

scholarly journals Systematic Review of the Integrative Medicine Recommendations for Patients with Pancreatic Cancer

Surgeries ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 216-230
Author(s):  
Andrew A. Gumbs ◽  
Manana Gogol ◽  
Gaya Spolverato ◽  
Hebatallah Taher ◽  
Elie K. Chouillard
Keyword(s):  
Systematic Review ◽  
Pancreatic Cancer ◽  
Integrative Medicine ◽  
Lifestyle Changes ◽  
Randomized Controlled ◽  
Nutrition Supplementation ◽  
Traditional Therapies ◽  
Traditional Approaches

Introduction: Integrative medicine (IM) is a relatively new field where non-traditional therapies with peer-reviewed evidence are incorporated or integrated with more traditional approaches. Methods: A systematic review of the literature from the last 10 years was done by searching clinical trials and randomized-controlled trials on Pubmed that discuss nutrition, supplementation, and lifestyle changes associated with “Pancreatic Cancer.” Results: Only 50 articles ultimately met the inclusion criteria for this review. A total of 15 articles discussed the role of obesity and 10 discussed the influence of stress in increasing the risk of pancreatic cancer. Six discussed the potential beneficial role of Vitamins, 5 of cannabinoids, 4 an anti-inflammatory diet, 3 of nut consumption, 2 of green tea consumption, 2 of curcumin supplementation, 1 role of melatonin, and 1 of probiotics. One article each was found on the theoretical benefits of adhering to either a Mediterranean or ketogenic diet. Discussion: As more surgeons become interested in IM, it is hoped that more diseases where the curative treatment is mainly surgical can benefit from the all-encompassing principles of IM in an effort to improve quality of life and survival in patients with pancreatic cancer.

scholarly journals Universities and start-up creation by Ph.D. graduates: the role of scientific and social capital of academic laboratories

2021 ◽  
Author(s):  
Alessandro Muscio ◽  
Sotaro Shibayama ◽  
Laura Ramaciotti
Keyword(s):  
Social Capital ◽  
Training Period ◽  
Scientific Excellence ◽  
Academic Knowledge ◽  
Start Up ◽  
Industry Collaboration ◽  
Business Experience ◽  
Subject Areas ◽  
Scientific Capital

AbstractThis paper investigates how the characteristics of university laboratories influence the propensity of Ph.D. students to entrepreneurship, and thus, contribute to the transfer of academic knowledge to society. As determinants of Ph.D. entrepreneurship, we focus on the lab scientific and social capital as well as on the business experience that Ph.D. students acquire during their training period. The empirical exercise is based on questionnaire survey data of 5266 Ph.D. students in Italian universities in all subject areas. First, we find that 6.7% of the Ph.D. graduates engage in startup activities, and thus, Ph.D. training seems to contribute to knowledge transfer through entrepreneurship. Second, Ph.D. entrepreneurship is driven by business experience, in the forms of industry collaboration and industrially applicable research projects, during their training period. Third, the lab scientific capital is negatively associated with Ph.D. entrepreneurship, suggesting a conflict between scientific excellence and entrepreneurship, but this effect is mitigated if students acquire business experience. Fourth, the lab social capital increases the chance of startup when students have business experience. We further investigate the effects of lab environment by distinguishing between startups that are based on university research and startups that are not, finding different determinants.

The role of shearing effect in evolution of the microscopic behavior of wax crystals

2021 ◽  
Author(s):  
Yuanhao Li ◽  
Jian Zhao ◽  
Hang Dong ◽  
Xiangrui Xi
Keyword(s):  
Crude Oil ◽  
Waxy Crude Oil ◽  
Waxy Crude ◽  
Dynamical Behaviors ◽  
Physical Phenomena ◽  
Wax Crystals

The microstructure and dynamical behaviors of wax crystals in waxy crude oil are the fundamental reasons for a series of physical phenomena in the process of transportation. In order to...

Light-Induced Metastable Defects in a-Si:H: Towards an Understanding

1985 ◽  
Vol 49 ◽  
Author(s):  
Martin Stutzmann ◽  
Warren B. Jackson ◽  
Chuang Chuang Tsai
Keyword(s):  
Amorphous Silicon ◽  
Mechanical Stress ◽  
Hydrogenated Amorphous Silicon ◽  
Material Parameters ◽  
Kinetic Behaviour ◽  
Proposed Model ◽  
Special Cases ◽  
The Stability ◽  
Hydrogenated Amorphous

AbstractThe dependence of the creation and the annealing of metastable dangling bonds in hydrogenated amorphous silicon on various material parameters will be discussed in the context of a recently proposed model. After a brief review of the kinetic behaviour governing defect creation and annealing in undoped a- Si:H, a number of special cases will be analyzed: the influence of alloying with O, N, C, and Ge, changes introduced by doping and compensation, and the role of mechanical stress. Finally, possibilities to increase the stability of a-Si:H based devices will be examined.

Developing Habits and Knowing What Habits to Develop: A Look at the Role of Virtue in Ethics

1997 ◽  
Vol 6 (3) ◽  
pp. 347-355 ◽  
Author(s):  
Erich H. Loewy
Keyword(s):  
Medical Ethics ◽  
Virtue Ethics ◽  
Conventional Method ◽  
Greek Philosophy ◽  
Ethical Problems ◽  
Working Through ◽  
Traditional Approaches ◽  
Better Than

Virtue ethics attempts to identify certain commonly agreed-upon dispositions to act in certain ways, dispositions that would be accepted as ‘good’ by those affected, and to locate the goodness or badness of an act internal to the agent. Basically, virtue ethics is said to date back to Aristotle, but as Alisdair MacIntyre has pointed out, the whole idea of ‘virtue ethics’ would have been unintelligible in Greek philosophy for “a virtue (arete) was an excellence and ethics concerned excellence of character; all ethics was virtue ethics.” Virtue ethics as a method to approach problems in medical ethics is said by some to lend itself to working through cases at the bedside or, at least, is better than the conventional method of handling ethical problems. In this paper I want to explore some of the shortcomings of this approach, examine other traditional approaches, indicate some of their limitations, and suggest a different conceptualization of the approach.

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