911 research outputs found
Language about salvation: an analysis of part of the vocabulary of the Old Testament
It may seem odd that, after many centuries of translation and
exegesis, the meaning of a common Old Testament Hebrew word like
HOSIA can still be taken as the subject of a doctoral dissertation.
There are several answers to this charge. First, there have, broadly
speaking, been only two approaches to the problem of the meaning of
HOSIA, the one based on simple translation (e.g. 'HOSIA means
"save "), and the other on comparative philology (e.g. 'the root of
HOSIA means "spaciousness". Cf. Arabic wasia "be spacious "').
Even without analysing the obvious inadequacy of these two methods,
it is clear that there is still room for a systematic definition of
the meaning of HOSIA from within the Hebrew language. How is it
distinguished, for example, from HISSIL which also 'means "save",
and from HIRHIB whose root also 'means "spaciousness "? Monolingual
definition, in terms of meaning-relations contracted within the language,
and semantic components identifiable in lexical groups, is, to the
best of my knowledge, unknown in the field of Old Testament Hebrew
lexicography.This leads to a second, more general answer. The gap between the
semantics of Biblical language and modern linguistic theory has still
to be bridged. My interests in this direction began in 1961 at New
College, Edinburgh, under the stimulus of Professor James Barr whose
famous book on the subject was published in that year, and were further encouraged by Professor Chaim Rabin in Jerusalem, whose course in
semantica mictra'it at the Hebrew University in 1962, in a way marked
the beginning of a new era for the semantics of the Hebrew language.
More recently, my participation in the activities of the Linguistic
Section of the University of Newcastle upon Tyne Philosophical Society,
and some valuable assistance from Professor John Lyons in the University
of Edinburgh, have made me aware of the immense contribution still to
be made by general linguistics to Old Testament lexicography and
interpretation.In this short essay I have tried to work out a general semantic
theory applicable to a religious text like the Old Testament. In the
field of Biblical research, semanticists - and this includes philologists,
lexicographers, exegetes and theologians - have a distinct
advantage over their colleagues in other branches of linguistic science
in having a closed literary corpus to work with. Our first step is to
define this corpus and the context or contexts in which it has meaning
(Chapter I). There are varieties of language within the corpus and
distinctions must be drawn in terms of style or literary form (Chapter
II). A third chapter presents some of the more important historical factors operating in the associative field to which HOSIA , HISSIL,
etc. belong; while the next chapter is a synchronic analysis of the
meaning of these terms as they are used in a selected variety of Old
Testament Hebrew, namely language addressed to God. The results of
this analysis can then be correlated, compared with the historical
data, and set forth as dictionary definitions (Chapter V). A final chapter attempts to draw up a modest blue -print for semantic studies
of Old Testament terms, based on the experience of handling the lexical
material involved in the foregoing chapters.This outline suggests a third answer to the charge that there can hardly be anything left to say on the meaning of HOSIA: a problem
like this cannot properly be studied in isolation. Questions about the
context of the Old Testament, the nature of religious language, and the
relation between "word -studies" and "concept- studies ", on which there
is still a great deal to be said, arise at every stage. Which words
belong to language about salvation and which do not? What is the relation between "the meaning of HOSIA and "the meaning of salvation"?
How is it possible to move from semantic analysis to Biblical Theology?
What theological norms are there in cases of diversity of meaning? In
short, there are theological and religious issues in this kind of study
which point beyond the relatively circumscribed context of linguistic
description
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Patterns of polymorphism and divergence in Drosophila protein-coding genes suggest that a considerable fraction of amino acid differences between species can be attributed to positive selection and that genes with sex-biased expression, that is, those expressed predominantly in one sex, have especially high rates of adaptive evolution. Previous studies, however, have been restricted to autosomal sex-biased genes and, thus, do not provide a complete picture of the evolutionary forces acting on sex-biased genes across the genome. To determine the effects of X-linkage on sex-biased gene evolution, we surveyed DNA sequence polymorphism and divergence in 45 X-linked genes, including 17 with male-biased expression, 13 with female-biased expression, and 15 with equal expression in the 2 sexes. Using both single- and multilocus tests for selection, we found evidence for adaptive evolution in both groups of sex-biased genes. The signal of adaptive evolution was particularly strong for X-linked male-biased genes. A comparison with data from 91 autosomal genes revealed a ‘‘fast-X’’ effect, in which the rate of adaptive evolution was greater for X-linked than for autosomal genes. This effect was strongest for male-biased genes but could be seen in the other groups as well. A genome-wide analysis of coding sequence divergence that accounted for sex-biased expression also uncovered a fast-X effect for male-biased and unbiased genes, suggesting that recessive beneficial mutations play an important role in adaptation.Organismic and Evolutionary Biolog
The Old Testament and Its Readers
The paper begins with personal memories of Porteous from the author and another New College alumnus. It then goes on to explore the notion of the meaning of Old Testament texts and the role of the reader (particularly the ‘ordinary reader’) in the process of understanding them. This takes in readings from the perspectives of feminism, liberation theology and postcolonialism; reception history and the ‘afterlife’ of texts; and a discussion of the criteria by which an interpretation of a text may be considered ‘correct’ or ‘incorrect’, and indeed if this is possible at all. A bibliography on this topic is appended
DeWitt Wallace Library Annual Report 2015-2016
Summary of library and media services activities for 2015-201
Nuclear safety policy working group recommendations on nuclear propulsion safety for the space exploration initiative
An interagency Nuclear Safety Working Group (NSPWG) was chartered to recommend nuclear safety policy, requirements, and guidelines for the Space Exploration Initiative (SEI) nuclear propulsion program. These recommendations, which are contained in this report, should facilitate the implementation of mission planning and conceptual design studies. The NSPWG has recommended a top-level policy to provide the guiding principles for the development and implementation of the SEI nuclear propulsion safety program. In addition, the NSPWG has reviewed safety issues for nuclear propulsion and recommended top-level safety requirements and guidelines to address these issues. These recommendations should be useful for the development of the program's top-level requirements for safety functions (referred to as Safety Functional Requirements). The safety requirements and guidelines address the following topics: reactor start-up, inadvertent criticality, radiological release and exposure, disposal, entry, safeguards, risk/reliability, operational safety, ground testing, and other considerations
Improving an Active-Optical Reflectance Sensor Algorithm Using Soil and Weather Information
Active-optical reflectance sensors (AORS) use light reflectance characteristics from a crop canopy as an indicator of the plant’s N health. However, studies have shown AORS algorithms used in conjunction with measured reflectance characteristics for corn (Zea maysL.) N fertilizer rate recommendations are not consistently accurate. Our objective was to determine if soil and weather information could be utilized with an AORS algorithm developed at the University of Missouri (ALGMU) to improve in-season (∼V9 corn development stage) N fertilizer recommendations. Nitrogen response trials were conducted across eight states over three growing seasons, totaling 49 sites with soils ranging in productivity. Nitrogen fertilizer rates according to the ALGMU were compared to economic optimal nitrogen rate (EONR). Without soil and weather information included, the root mean square error (RMSE) of the difference between ALGMU and EONR (MUDIFF) was 81 and 74 kg N ha–1 for treatments receiving 0 and 45 kg N ha–1 applied at planting, respectively. When ALGMU was adjusted using weather (seasonal precipitation and distribution prior to sidedress) and soil clay content, the RMSE was reduced by 24 to 26 kg N ha–1. Without adjustment, 20 and 29% of sites were within 34 kg N ha–1 of EONR with 0 and 45 kg N ha–1 at planting, respectively. But with adjustment for soil and weather data, 45 and 51% of sites were within 34 kg N ha–1 of EONR. These results show that weather and soil information could be used to improve ALGMU N recommendation performance
Active-Optical Reflectance Sensing Corn Algorithms Evaluated over the United States Midwest Corn Belt
Uncertainty exists with corn (Zea mays L.) N management due to year-to-year variation in crop N need, soil N supply, and N loss from leaching, volatilization, and denitrification. Active-optical reflectance sensing (AORS) has proven effective in some fields for generating N fertilizer recommendations that improve N use efficiency, but locally derived (e.g., within a US state) AORS algorithms have not been tested simultaneously across a broad region. The objective of this research was to evaluate locally developed AORS algorithms across the US Midwest Corn Belt region for making in-season corn N recommendations. Forty-nine N response trials were conducted across eight states and three growing seasons. Reflectance measurements were collected and sidedress N rates (45–270 kg N ha–1 on 45 kg ha–1increments) applied at approximately V9 corn development stage. Nitrogen recommendation rates from AORS algorithms were compared with the end-of-season calculated economic optimal N rate (EONR). No algorithm was within 34 kg N ha–1 of EONR \u3e 50% of the time. Average recommendations differed from EONR 81 to 147 kg N ha–1 with no N applied at planting and 74 to 118 kg N ha–1 with 45 kg of N ha–1 at planting, indicating algorithms performed worse with no N applied at planting. With some algorithms, utilizing red edge instead of the red reflectance improved N recommendations. Results demonstrate AORS algorithms developed under a particular set of conditions may not, at least without modification, perform very well in regions outside those within which they were developed
Statistical and machine learning methods evaluated for incorporating soil and weather into corn nitrogen recommendations
Nitrogen (N) fertilizer recommendation tools could be improved for estimating corn (Zea mays L.) N needs by incorporating site-specific soil and weather information. However, an evaluation of analytical methods is needed to determine the success of incorporating this information. The objectives of this research were to evaluate statistical and machine learning (ML) algorithms for utilizing soil and weather information for improving corn N recommendation tools. Eight algorithms [stepwise, ridge regression, least absolute shrinkage and selection operator (Lasso), elastic net regression, principal component regression (PCR), partial least squares regression (PLSR), decision tree, and random forest] were evaluated using a dataset containing measured soil and weather variables from a regional database. The performance was evaluated based on how well these algorithms predicted corn economically optimal N rates (EONR) from 49 sites in the U.S. Midwest. Multiple algorithm modeling scenarios were examined with and without adjustment for multicollinearity and inclusion of two-way interaction terms to identify the soil and weather variables that could improve three dissimilar N recommendation tools. Results showed the out-of-sample root-mean-square error (RMSE) for the decision tree and some random forest modeling scenarios were better than the stepwise or ridge regression, but not significantly different than any other algorithm. The best ML algorithm for adjusting N recommendation tools was the random forest approach (r2 increased between 0.72 and 0.84 and the RMSE decreased between 41 and 94 kg N ha−1). However, the ML algorithm that best adjusted tools while using a minimal amount of variables was the decision tree. This method was simple, needing only one or two variables (regardless of modeling scenario) and provided moderate improvement as r2 values increased between 0.15 and 0.51 and RMSE decreased between 16 and 66 kg N ha−1. Using ML algorithms to adjust N recommendation tools with soil and weather information shows promising results for better N management in the U.S. Midwest
Methane Emissions from Process Equipment at Natural Gas Production Sites in the United States: Liquid Unloadings
Methane emissions from liquid unloadings were measured at 107 wells in natural gas production regions throughout the United States. Liquid unloadings clear wells of accumulated liquids to increase production, employing a variety of liquid lifting mechanisms. In this work, wells with and without plunger lifts were sampled. Most wells without plunger lifts unload less than 10 times per year with emissions averaging 21 000–35 000 scf methane (0.4–0.7 Mg) per event (95% confidence limits of 10 000–50 000 scf/event). For wells with plunger lifts, emissions averaged 1000–10 000 scf methane (0.02–0.2 Mg) per event (95% confidence limits of 500–12 000 scf/event). Some wells with plunger lifts are automatically triggered and unload thousands of times per year and these wells account for the majority of the emissions from all wells with liquid unloadings. If the data collected in this work are assumed to be representative of national populations, the data suggest that the central estimate of emissions from unloadings (270 Gg/yr, 95% confidence range of 190–400 Gg) are within a few percent of the emissions estimated in the EPA 2012 Greenhouse Gas National Emission Inventory (released in 2014), with emissions dominated by wells with high frequencies of unloadings
Soil sample timing, nitrogen fertilization, and incubation length influence anaerobic potentially mineralizable nitrogen
Understanding the variables that affect the anaerobic potentially mineralizable N (PMNan) test should lead to a standard procedure of sample collection and incubation length, improving PMNan as a tool in corn (Zea mays L.) N management. We evaluated the effect of soil sample timing (preplant and V5 corn development stage [V5]), N fertilization (0 and 180 kg ha−1) and incubation length (7, 14, and 28 d) on PMNan (0–30 cm) across a range of soil properties and weather conditions. Soil sample timing, N fertilization, and incubation length affected PMNan differently based on soil and weather conditions. Preplant vs. V5 PMNan tended to be greater at sites that received \u3c 183 mm of precipitation or \u3c 359 growing degree-days (GDD) between preplant and V5, or had soil C/N ratios \u3e 9.7:1; otherwise, V5 PMNan tended to be greater than preplant PMNan. The PMNan tended to be greater in unfertilized vs. fertilized soil in sites with clay content \u3e 9.5%, total C \u3c 24.2 g kg−1, soil organic matter (SOM) \u3c 3.9 g kg−1, or C to N ratios \u3c 11.0:1; otherwise, PMNan tended to be greater in fertilized vs. unfertilized soil. Longer incubation lengths increased PMNan at all sites regardless of sampling methods. Since PMNan is sensitive to many factors (sample timing, N fertilization, incubation length, soil properties, and weather conditions), it is important to follow a consistent protocol to compare PMNan among sites and potentially use PMNan to improve corn N management
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