Substituent Effects in Unimolecular Ion Decompositions. III - Elucidation of Competing Alternative Pathways for the Formation of a Particular Ion

Alternative means for formation of molecular ion in mass spectr

Listening Comprehension in a First-Year Spanish Comprehension Course: Background and Activities

The importance of the role of listening comprehension in the study and teaching of a foreign language has received ever more attention during the past decade. This essay expresses one new teacher s preliminary views on encorporating some of the beneficial facets of a comprehension-based approach to classroom teaching. It draws on previous exploratory work done by others n developing and using listening comprehension tasks in varied settings. The major part of the paper is devoted to a recounting of a number of activities used during the internship period and a discussion of the focuses of the given tasks, the responses required of those undertaking the tasks, as well as the listening strategies needed and the results of the students\u27 performance

Performance and selection of winter durum wheat genotypes in different European conventional and organic fields

Sustainability is a key factor for the future of agriculture. Productivity in agriculture has more than tripled in developed countries since the 1950s. Beyond the success of plant breeding, the increased use of inorganic fertilizers, application of pesticides, and spread of irrigation also contributed to this success. However, impressive yield increases started to decline in the 1980s because of the lack of sustainability. One of the most beneficial ways to increase sustainability is organic agriculture. In such agro-ecosystem-based holistic production systems the prerequisite of successful farming is the availability of crop genotypes that perform well. However, selection of winter durum wheat for sub-optimal growing conditions is still mainly neglected, and the organic seed market also lacks of information on credibly tested winter durum varieties suitable for organic agriculture

A Census Atlas of Irish Agriculture

End of Project ReportComputerised mapping systems were developed to analyse agricultural census statistics and data from agricultural policy administration sources. The objective was to identify local geographical variations in the structure and trends in the agricultural economy by mapping the available information, principally at the level of the District Electoral Division (DED) and the Rural District (RD). There were 3,113 DEDs and 156 RDs in the analysis. The main database was the 1991 Census of Agriculture, the latest available. Some statistics are updated annually and where possible these were used in tabular form to trace the 1991- 1997 trends for Regional Authority areas. Conclusions: There are distinctive farming regions in the country whose boundaries span unevenly across county limits. These are undergoing different processes of change depending on their resource base, their responses to economic imperatives, and the policy environment. • Commercial farming has become increasingly associated with areas south and east of a line from Limerick to Dundalk. • It is likely that policies and trends post 2000 will further increase the differences in resource use between commercial farming and other areas

Parametric Fokker-Planck equation

We derive the Fokker-Planck equation on the parametric space. It is the Wasserstein gradient flow of relative entropy on the statistical manifold. We pull back the PDE to a finite dimensional ODE on parameter space. Some analytical example and numerical examples are presented

A feasibility study of limb volume measuring systems

Evaluation of the various techniques by which limb volume can be measured indicates that the odometric (electromechanical) method and the reflective scanner (optical) have a high probability of meeting the specifications of the LBNP experiments. Both of these methods provide segmental measurements from which the cross sectional area of the limb can be determined

A Spectral Line Survey of Selected 3 mm Bands Toward Sagittarius B2(N-LMH) Using the NRAO 12 Meter Radio Telescope and the BIMA Array I. The Observational Data

We have initiated a spectral line survey, at a wavelength of 3 millimeters, toward the hot molecular core Sagittarius B2(N-LMH). This is the first spectral line survey of the Sgr B2(N) region utilizing data from both an interferometer (BIMA Array) and a single-element radio telescope (NRAO 12 meter). In this survey, covering 3.6 GHz in bandwidth, we detected 218 lines (97 identified molecular transitions, 1 recombination line, and 120 unidentified transitions). This yields a spectral line density (lines per 100 MHz) of 6.06, which is much larger than any previous 3 mm line survey. We also present maps from the BIMA Array that indicate that most highly saturated species (3 or more H atoms) are products of grain chemistry or warm gas phase chemistry. Due to the nature of this survey we are able to probe each spectral line on multiple spatial scales, yielding information that could not be obtained by either instrument alone.Comment: 35 pages, 15 figures, to be published in The Astrophysical Journa

Indication for π+π−\pi^+ \pi^- scattering in p+pp+p collisions at sNN=\sqrt{s_{_{NN}}} = 200 GeV

A $\rho(770)^0$ mass shift of about -40 MeV/$c^2$ was measured in $p+p$ collisions at $\sqrt{s_{_{NN}}} =$ 200 GeV at RHIC. Previous mass shifts have been observed at CERN-LEBC-EHS and CERN-LEP. We will show that phase space does not account for the $\rho(770)^0$ mass shift measured at RHIC, CERN-LEBC-EHS and CERN-LEP and conclude that there are significant scattering interactions in $p+p$ collisions.Comment: 11 pages and 7 figure