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Community Ecology
Authors: R. J. Pakeman, R. J. Pakeman, S. A. Hinsley, S. A. Hinsley, P. E. Bellamy, and P. E. Bellamy

The favoured state approach sensu Fox (1987) was used to investigate the existence of assembly rules for woodland bird communities in an agricultural landscape. When birds were classified according to gross breeding habitat requirements, year-round resident, .true. woodland species showed an excess of favoured states suggesting a possible assembly rule. There was weaker evidence for a similar assembly rule governed by foraging requirements. This pattern was shown for all woods together, and for most categories of woods, grouped according to size, shape or size and shape together. Summer migrants did not show such patterns, and their arrival appeared to mask any patterns established by year-round resident species. The statistical significance of the excess of favoured states was highest in 1990, when bird population densities were considerably higher than in 1991 and 1992. Interspecific competition appears to be a factor in structuring woodland bird communities within the area sampled. Some implications for the action of these assembly rules on the results of further habitat fragmentation are discussed.

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Journal of Thermal Analysis and Calorimetry
Authors: L. Núñez-Regueira, J. A. Rodríguez-Añón, J. Proupín-Castiñeiras, and O. Núñez-Fernández

Summary Soil productivity and health were analyzed using an experimental procedure designed for this kind of studies. The continuous loss of fertile soil obliged the Food and Agriculture Organization (FAO) to declare soil as an item to be protected as a support of the world society welfare. The procedure here described is in accordance with the premises necessary for a rational and sustainable development of soil and the resources it contains and can be used to study any soil all over the world. The study was carried out using soil microbial population as a bioindicator of soil health. Microbial activity was followed using the microcalorimetric technique. The microcalorimetric study can be complemented through a deep analysis of soil physical, chemical and biological properties together with a study of the environmental properties that have a strong influence on the afore mentioned properties and, thus on the microbial activity in soil. The different properties follow different ASTM, ISS/FAO, USDA, etc. well defined standards. The experimental procedure reported in this work could be very helpful to create a data basis that could be useful to quantify and control soil potentiality or design soil decontamination and recovery systems.

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Abstract  

The present bibliometric study extends previous work by focusing on the research performance of departments in the natural and life sciences, the social and behavioral sciences, and the humanities. The present study covers all 70 departments from one agricultural university, and several veterinary departments of a second university. The impact analysis was extended by including other types of documents than journal articles. For about a third of the departments, publications not covered in citation indexes accounted for at least 30% of the citations to their total oeuvre. To deal with different citation and publication habits in the various fields, both short-term and medium-term impact assessments were made. The commonly used three year window is not universally applicable, as our results show. The inclusion of self-citations forms an important source of error in the ratio of actual/expected impact. To cope with this, the trend and level of self-citations was compared at university level with that in a matched sample of publications. Moreover, at a departmental level, self-citation rates were used to detect departments with divergent levels of self-citation. The expected impact of journals accounted for only 18% of the variance in actual impact. Comparison of bibliometric indicators with two peer evaluations showed that the bibliometric impact analyses provided important additional information.

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The focal point of the text is the historical and cultural perspective on the Sixties in Poland. The decade in arts is diagnosed as not isolated from its context, therefore the Sixties, which have been forced in between the seemingly coherent decades of the Fifties and the Seventies — ‘official’ and ‘unofficial’ art — are reinstated into their own context — the Sixties. Thus the text approaches the art created during the decade from a historical viewpoint, offering analysis of works of art connected with social and political phenomenon such as the Vietnam War, the death of Ernesto Che Guevara, Non-Proliferation Treaty, Cold War, nuclear warfare, moon landing, etc — threads that run parallel in all domains of culture.

The argument is constituted from some alternative caesurae of the decade — between the competition for the Auschwitz monument in 1958 and the antisemitic purge initiated by the infamous speech of Gomułka delivered in March of 1968. Caesura seized by the discourse on the reappropriation of realism — taken over by the official propaganda of the totalitarian regime — seems to be established with two paintings — And the Queue Goes on by Andrzej Wróblewski from 1956 and And the Queue Still Goes on (for Andrzej Wróblewski) by Zbylut Grzywacz from 1973. The attempt of Polish artists to regain access to realism and/as the language of proletariat appears as crucial for understanding the culture of the Sixties as the ‘unfulfilled love on the grounds of the agricultural circle’ — as the decade reveals both its connection points and footholds with the sociopolitical reality — its visual and language patterns.

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Abstract  

Thermogravimetry has been widely used for the characterization of several biomasses but the most useful information given by this technique has been normally concerned to the relative amounts of humidity, hemi-cellulose, cellulose and lignin present in the biomass. TG-FTIR has been used to yield qualitative data about the pyrolysis products, in an exploratory way, by some authors. In the present paper, this technique was employed to reach comparative data about the products of pyrolysis of biomasses that are potentially available at economic bases for the production of biofuels. Agricultural residues such as coconut shell, sugarcane bagasse, corn stalks and peanut shell were chosen to be investigated. For all samples, the thermogravimetric curves showed a mass loss between 35 and 400 °C changed up to 73%, while that the loss between 400 and 800 °C changed up to 26%. TG-FTIR indicated tendencies in the rate of the formation of important species during the pyrolysis process of the four biomasses studied. The interpretation of the spectra allowed the proposition of characteristic absorbance ratios and the comparison of these values allowed inferences about the relative abundances of components formed in the pyrolysis of the biomasses. As an example of the possible inferences reached, among the species formed in the pyrolysis condensate, called bio-oil, the formation of carboxylic acids has to be specially considered due to their corrosivity. Thus, the data produced indicated that a bio-oil derived from peanut shell should be a little less acidic while the one derived from sugarcane bagasse should be showed more acidic among the biomasses studied.

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The first record of species Penthalodes ovalis (Dugès, 1834) in agricultural habitat is presented in this paper. This is also the first record of the occurrence and damages on grown plants. The variability of the morphology and new data on the biology are given as well.

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investigate the research question, the Taiwanese Council of Agriculture conducted a program called “Building-Up a Technology Foresight System for Agriculture” in 2008. In this research, we attempted to build a multistage technology foresight mode by applying

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60 Dobó E. — Fekete F.M. — Kumar S.M. — Szűcs I.: 2006. Ecological-economic analysis of climate change on food system and agricultural vulnerability: a brief overview. Cereal Research

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practical adaptation from the Faculty of Agronomy, University of Agricultural Sciences, Debrecen.) Debrecen A Debreceni Agrártudományi Egyetem Mezőgazdasági Egyetemi Karának néhány fontosabb, a gyakorlatnak átadható

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Abstract  

TG, DTG and DTA methods were used for the investigation of some waste agricultural products, such as grape seeds, walnut shells, plum and peach stones, which can serve as raw materials for the production of active carbons. It was demonstrated that thermo analytical methods are appropriate to study the thermal characteristics of the above wastes and the data obtained can be applied to the technological processes of active carbon preparation.

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