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Ramon Lopez

Bio: Ramon Lopez is an academic researcher from University of Texas at Arlington. The author has contributed to research in topics: Magnetosphere & Solar wind. The author has an hindex of 50, co-authored 307 publications receiving 9767 citations. Previous affiliations of Ramon Lopez include Johns Hopkins University & Florida Institute of Technology.


Papers
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Journal ArticleDOI
TL;DR: In this paper, an inverted U-shaped relationship between pollution and income is obtained, and the relationship between growth and pollution depends on the elasticity of substitution in production between conventional factors and pollution and on the relative degree of curvature of utility in income.

644 citations

Journal ArticleDOI
TL;DR: In this paper, the authors verified the pressure balance relationship between the solar wind dynamic pressure and the location of the subsolar magnetopause by assembling a data set of 1821 magnetopsause crossings.
Abstract: A data set of 1821 magnetopause crossings was assembled. Separate fits to subsets of this data set determine the magnetopause location as a function of solar wind dynamic pressure and interplanetary magnetic field orientation. Solar wind dynamic pressure variations produce self-similar magnetopause motion on time scales of one hour or longer. In this paper, the pressure balance relationship between the solar wind dynamic pressure and the location of the subsolar magnetopause are verified. The relationship between the IMF Bz, region 1 Birkeland current strength, the position of the subsolar magnetopause, and the shape of the dayside magnetosphere is quantified. Cross sections of the dayside magnetopause in planes perpendicular to the earth-sun line are oblate.

513 citations

Journal ArticleDOI
TL;DR: In this paper, the authors examined current disruption events observed by the Charge Composition Explorer during 1985 and 1986 and found that current disruption was accompanied by large magnetic field turbulence and frequently with reversal in the sign of the field component normal to the neutral sheet.
Abstract: Current disruption events observed by the Charge Composition Explorer during 1985 and 1986 are examined. Occurrence of current disruption was accompanied by large magnetic field turbulence and frequently with reversal in the sign of the field component normal to the neutral sheet. Current disruptions in the near-earth region are found to be typically shortlived (about 1-5 min), and their onsets coincide well with the ground onsets of substorm expansion or intensification in the local time sector of the footpoint of the spacecraft. These events are found almost exclusively close to the field reversal plane of the neutral sheet (within about 0.5 RE). Prior to current disruption the field strength can be reduced to as low as one seventh of the dipole field value and can recover to nearly the dipole value after disruption. The temporal evolution of particle pressure in the near-earth neutral sheet during the onset of current disruption indicates that the current buildup during the substorm growth phase is associated with enhancement in the particle pressure at the neutral sheet.

342 citations

Book
01 Jan 2000
TL;DR: In this article, the authors bring out four dimensions of quality relevant for poverty outcomes: distribution, sustainability, variability, and governance surrounding the growth process of the developing world's economy.
Abstract: The last decade of the 20th century witnessed striking progress in the developing world but it also saw stagnation and setbacks. These differences and reversals in outcomes have taught us much about what contributes to development. The pace and quality of economic growth remains central. The discussion here brings out four dimensions of quality relevant for poverty outcomes: distribution, sustainability, variability, and governance surrounding the growth process. Viewing the quantative and qualitative sides of growth together puts the spotlight on a balanced growth of three sets of assets: human, physical, and natural capital, rather than an almost exclusive focus on promoting accumulation of physical capital.

281 citations

Journal ArticleDOI
TL;DR: In this paper, a series of brief, strong (delta p/p = 1), dynamic pressure oscillations that occurred in the region upstream of the earth's bow shock during a period of radial interplanetary magnetic field was analyzed.
Abstract: This paper documents a series of brief, strong (delta p/p = 1), dynamic pressure oscillations that occurred in the region upstream of the earth's bow shock during a period of radial interplanetary magnetic field. The analyzed set of oscillations, which may be either intrinsic solar wind or bow shock-related phenomena, recur approximately every 8-10 min, and their magnetic field signatures occur nearly simultaneously over great distances transverse to the earth-sun line. The pressure oscillations appear to drive tailward-moving magnetopause surface wavelets. In turn, the surface wavelets can be identified as hydromagnetic waves with strong compressional components in the outer magnetosphere and as quasi-periodic variations in electron precipitation and high-latitude ground pulsations. Observations by spacecraft in the outer dayside magnetosphere are used to predict geosynchronous and subsolar magnetic field strengths, the location of the subsolar magnetopause, the solar wind dynamic pressure, and variations in the energetic magnetospheric ion flux.

264 citations


Cited by
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Journal ArticleDOI
TL;DR: Reading a book as this basics of qualitative research grounded theory procedures and techniques and other references can enrich your life quality.

13,415 citations

Journal ArticleDOI
29 Jun 1995-Nature
TL;DR: A minimal cosegregating region containing the AD3 gene is defined, and at least 19 different transcripts encoded within this region corresponds to a novel gene whose product is predicted to contain multiple transmembrane domains and resembles an integral membrane protein.
Abstract: Some cases of Alzheimer's disease are inherited as an autosomal dominant trait. Genetic linkage studies have mapped a locus (AD3) associated with susceptibility to a very aggressive form of Alzheimer's disease to chromosome 14q24.3. We have defined a minimal cosegregating region containing the AD3 gene, and isolated at least 19 different transcripts encoded within this region. One of these transcripts (S182) corresponds to a novel gene whose product is predicted to contain multiple transmembrane domains and resembles an integral membrane protein. Five different missense mutations have been found that cosegregate with early-onset familial Alzheimer's disease. Because these changes occurred in conserved domains of this gene, and are not present in normal controls, they are likely to be causative of AD3.

4,110 citations

Journal ArticleDOI
TL;DR: A critical history of the environmental Kuznets curve (EKC) can be found in this article, where a new generation of decomposition and efficient frontier models can help disentangle the true relations between development and the environment and may lead to the demise of the classic EKC.

2,904 citations

Journal ArticleDOI
TL;DR: The Environmental Kuznets Curve (EKC) hypothesis as discussed by the authors proposes an inverted-U-shaped relationship between different pollutants and per capita income, i.e., environmental pressure increases up to a certain level as income goes up; after that, it decreases.

2,882 citations