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A cochonilha-do-carmim (Dactylopius opuntiae) pode ser controlada por Chrysoperla externa? Repositório Alice
GARZIERA, L.; TORRES, T. G.; CASTRO, R. M.; LOPES, F. S. C.; SIQUEIRA, M. C.; SILVA, L. D. da; PARANHOS, B. A. J..
2009
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Controle biológico; Chrysopidae; Predador; Palma-forrageira; Cochonilha-do-carmim.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/575703
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A cognitive psychological approach of analyzing preference uncertainty in contingent valuation AgEcon
Akter, Sonia; Bennett, Jeffrey W..
The sources of preference uncertainty in contingent valuation (CV) studies have rarely been investigated from a theoretical standpoint. This paper proposes a holistic theoretical framework of preference uncertainty that combines microeconomic theory with the theories of cognitive psychology. Empirical testing of the proposed theoretical model was carried out in Australia in the context of a national ‘Carbon Pollution Reduction Scheme (CPRS)’ to be introduced in 2010. Two separate ordered probit models for a certainty score associated with CV ‘Yes’ and ‘No’ responses were estimated. The results of the estimated regression models provide evidence supporting the hypotheses drawn from the theoretical model.
Tipo: Conference Paper or Presentation Palavras-chave: Contingent valuation; Preference uncertainty; Cognitive uncertainty; Climate change; Australia.
Ano: 2009 URL: http://purl.umn.edu/47938
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A coleção de bactérias para o controle biológico de invertebrados: uma das quatro coleções da Rede Global de Recursos Biológicos: desafios e perspectivas. Infoteca-e
PRACA, L. B.; CASTRO, E. A.; PONTES, R. G. M. S. de.
2009
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Controle biológico; Rede Global de Recursos Biológicos.
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/748186
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A comparative analysis of attribute reduction algorithms applied to wet-blue leather defects classification. Repositório Alice
AMORIM, W. P.; PISTORI, H.; JACINTO, M. A. C..
This paper presents an attribute reduction comparative study on four linear discriminant analysis techniques: FisherFace, CLDA, DLDA and YLDA. The attribute reduction has been applied to the problem of leather defect c1assification using four different c1assifiers: C4.5, KNN, Naive Bayes and Support Veetor Machines. Results and analyses on the performance of correct c1assification rates as the number of attributes were reduced are reported.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Wet-blue; Couro; Defeito.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/574710
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A comparative assessment of octanol-water partitioning and distribution constant estimation methods for perfluoroalkyl carboxylates and sulfonates Nature Precedings
Sierra Rayne; Kaya Forest.
New experimental data is available in the literature regarding the octanol-water distribution behavior of representative straight chain perfluoroalkyl carboxylate (PFCA) and sulfonate (PFSA) congeners. The current study provides the first investigation into the predictive ability of various software programs for estimating the corresponding octanol-water partitioning (log P) and distribution (log D) constants of PFCAs and PFSAs. Wide predictive variation was found within and between the various methods. Several programs were able to accurately estimate the log P/D fragmental contributions of a -CF~2~- group for PFCAs, as well as the associated Gibbs free energies for partitioning into octanol from water due to the hydrophobic character of the...
Tipo: Manuscript Palavras-chave: Chemistry; Earth & Environment.
Ano: 2009 URL: http://precedings.nature.com/documents/3282/version/2
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A comparative assessment of octanol-water partitioning and distribution constant estimation methods for perfluoroalkyl carboxylates and sulfonates Nature Precedings
Sierra Rayne; Kaya Forest.
New experimental data is available in the literature regarding the octanol-water distribution behavior of representative straight chain perfluoroalkyl carboxylate (PFCA) and sulfonate (PFSA) congeners. The current study provides the first investigation into the predictive ability of various software programs for estimating the corresponding octanol-water partitioning (log P) and distribution (log D) constants of PFCAs and PFSAs. Wide predictive variation was found within and between the various methods. Several programs were able to accurately estimate the log P/D fragmental contributions of a -CF~2~- group for PFCAs, as well as the associated Gibbs free energies for partitioning into octanol from water due to the hydrophobic character of the...
Tipo: Manuscript Palavras-chave: Chemistry; Earth & Environment.
Ano: 2009 URL: http://precedings.nature.com/documents/3282/version/1
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A comparative efficiency analysis of wheat farms using parametric and nonparametric methods AgEcon
Mo, Lijia.
This study examined whether the efficiency measures were invariant to choice of parametric and nonparametric methods for a sample of 183 wheat farms. The efficiency measures from the deterministic parametric method were smaller than those from the deterministic method. There was a trade-off between scale efficiency and economic efficiency. In the deterministic nonparametric method, the economic efficiency, scale efficiency and overall efficiency results were invariant to the number of inputs or the dimensionality. Only allocative and pure technical efficiency measures depended on the dimensionality. This work illustrated the importance of holding curvature for the cost function in stochastic frontier results.
Tipo: Conference Paper or Presentation Palavras-chave: Efficiency analysis; Deterministic nonparametric method; Parametric stochastic frontier; Production Economics; Q11.
Ano: 2009 URL: http://purl.umn.edu/56427
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A COMPARATIVE ESTIMATION OF THE COUNTRY REGIONS’ DEVELOPMENT STATE AgEcon
Baliuk, Sviatlana.
The article studies issue of a comparative estimation of the country regions’ development level. The author offers a set of indicators for defining competitive advantages and drawbacks of social and economic development of territories on the basis of integrated estimations. The basis of the author’s approach is a principle of extraction of the regional rent in modern conditions.
Tipo: Journal Article Palavras-chave: Region; Regional economic development; Rent.; Research and Development/Tech Change/Emerging Technologies; R11.
Ano: 2009 URL: http://purl.umn.edu/94566
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A comparative evaluation of antibacterial potential of some plants used in indian traditional medicine for the treatment of microbial infections BABT
Chattopadhyay,Rabi Ranjan; Bhattacharyya,Subir Kumar; Medda,Chiranjib; Chanda,Sunanda; Bag,Anwesa.
A comparative in vitro antibacterial potential of extracts (aqueous and ethanol) of five important medicinal plants (Aegle marmelos, Azadirachta indica, Terminalia chebula, Mangifera indica and Ocimum sanctum) were investigated using microbial growth inhibition assays against the common human pathogenic bacteria (Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia coli) of clinical origin. All the plant materials showed varying degrees of strain specific inhibitory action and ethanol extract of the plant materials showed higher antibacterial activity than their aqueous counterparts. Besides, T. chebula and A. marmelos had the strongest antibacterial activity out of which, T. chebula possessed a wider spectrum and a superior antibacterial...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pathogenic bacteria; Medicinal plants; Antibacterial potential; Comparative study.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500009
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A Comparative Histological Study of the Tongue of Rat (Rattus Norvegicus), Bat (Eidolon Helvum) and Pangolin (Manis Tricuspis) International Journal of Morphology
Abayomi,Taiwo A; Ofusori,David A; Ayoka,Oladele A; Odukoya,Samson A; Omotoso,Emmanuel O; Amegor,Frank O; Ajayi,Sunday A; Ojo,Gideon B; Oluwayinka,Oladele P.
This study assessed the micro anatomical differences in the tongue of rat, bat and pangolin with a view to establishing the functional anatomical differences of these mammalian tongues on their dietary pattern. Ten rats, ten bats and ten pangolins were used for this study. The animals were sacrificed and the tongue excised and processed for light microscopical study adopting the following stains: Haematoxylin Eosin, Verhoeff Gieson and Masson trichrome. The results showed non papillation of the keratinized stratified epithelium of pangolin tongue unlike the papillation seen in the tongue of the rat and bat. While the filiform papillation seen in the rat was bristle like, the filiform papillae in the bat were crown-like. There was also an unusual dense...
Tipo: Journal article Palavras-chave: Rat; Bat; Pangolin; Tongue; Micro-anatomy.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000400026
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A comparative review of the fisheries resource management systems in New Zealand and in the European Union ArchiMer
Marchal, Paul; Lallemand, Philippe; Stokes, Kevin; Thebaud, Olivier.
This review aims at comparing the fisheries management systems existing in New Zealand and in the European Union. The involvement of stakeholders at all stages of the management process is generally more transparent and better established in New Zealand than in the EU. Both systems aim at achieving an adequate balance between sustainability and utilisation and consider the precautionary approach as a founding principle. The social objectives are probably more explicit in the EU management system. In New Zealand, B-MSY is a legal management target for all stocks in the quota management system (QMS), but management strategies were poorly explicit until most recently. In the EU, there have not been any legal management targets or strategies until 1999. Since...
Tipo: Text Palavras-chave: Fisheries; Total allowable catches; Rights based management; Quota; Atlantic Ocean; Pacific Ocean.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00000/11167/7534.pdf
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A comparative study in direct cryopreservative efficacy between Triladly® and EDTA saline glucose 10% glycerol cryopreservative media for human and non-human infective trypanosomes OAK
Ndungu, K; Gitonga, P; Mulinge, M; Kangethe, J; Kibugu, J. K; Munga, L. K; Maina, N; Kagira, J. M; Ngae, G. N; Murilla, G.
The efficacy of Triladyl®, a commercial cryomedium for bull semen, in the cryopreservation of both human and animal infective trypanosomes as compared to EDTA Saline Glucose (ESG) 10% glycerol was evaluated in the current study. Cryopreserved Trypanosoma brucei rhodesiense, T. evansi, T. b. brucei and T. congolense were first propagated in irradiated mice. At the peak of parasitemia, parasites were harvested by cardiac puncture and 106,105,104103,102 and 10 dilutions made using whole blood bled from clean mice. These dilutions were divided into two equal portions of 0.5 ml each and cryopreserved in both ESG 10% glycerol and neat Triladly®. The procedure was also repeated with T. congolense and T. vivax species of trypanosomes directly isolated from...
Palavras-chave: Trypanosoma; Cryopreservation.
Ano: 2009 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2500
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A Comparative Study of China's and Australia's Cotton Production AgEcon
Zhao, Xufu; Tisdell, Clement A..
After providing information about the global importance of cotton as a textile and China’s and Australia’s contribution to global cotton production, this paper examines and compares trends in the time-series of cotton production of China and Australia for the period 1980-2007. In doing so, it takes account of changes in the area planted with cotton and its yield. Correlation estimates and decomposition analysis are used to determine the relative contribution to variations in the total output of cotton of changes in the total area planted with cotton and its yield in both countries. These relative contributions are found to be quite different for Australia and China. In addition, there is a comparative analysis of fluctuations in the production of cotton,...
Tipo: Working or Discussion Paper Palavras-chave: Australia; Agricultural economics; China; Cotton production; Cotton supply responses; Fibre markets; Fluctuations in agricultural production; Crop Production/Industries; International Relations/Trade; Q00; Q10; Q11; Q13; Q18; Q19.
Ano: 2009 URL: http://purl.umn.edu/90622
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A comparative study of single-dose treatment of chancroid using thiamphenicol versus Azithromycin BJID
B. Junior,Walter; Di Chiacchio,Nilton G.; Di Chiacchio,Nilton; Romiti,Ricardo; Criado,Paulo R.; Velho,Paulo Eduardo N. Ferreira.
A study was conducted in São Paulo, Brazil, to compare azithromycin with thiamphenicol for the single-dose treatment of chancroid. In all, 54 men with chancroid were tested. The etiology was determined by clinical characterization and direct bacterioscopy with Gram staining. None of the patients had positive serology or dark-field examination indicating active infection with Treponema pallidum. Genital infections due to Neisseria gonorrhoeae and herpes simplex virus were excluded by polymerase chain reaction testing. For 54 patients with chancroid, cure rates with single-dose treatment were 73% with azithromycin and 89% with thiamphenicol. HIV seropositivity was found to be associated with treatment failure (p=0.001). The treatment failed in all HIV...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Azithromycin; Chancroid; Haemophilus ducreyi; Single dose; Thiamphenicol.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000300012
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A comparative study of the implementation of organic food in school meal systems in four European countries Organic Eprints
Nielsen, Thorkild; Nölting, Benjamin; Kristensen, Niels Heine; Løes, Anne-Kristin.
Based on national reports from Denmark, Finland, Italy and Norway, describing the school meal systems and to which extent organic food is integrated there, this report identifies differences between the four countries and experiences made with organic food procurement and the dissemination of organic ingredients in school meals. Such knowledge will help to understand the possibilities and restrictions for increasing organic food in school meal systems, and to reveal the room of manoeuvre for public organic food procurement for youth in each country. In the report, similarities and differences of the national school meal systems in general are first discussed, because this context determines the scope of organic food procurement. The history and current...
Tipo: Report Palavras-chave: Food security; Food quality and human health Social aspects Produce chain management.
Ano: 2009 URL: http://orgprints.org/16670/1/16670.pdf
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A Comparative Study of the Magnitude, Frequency and Distribution of Intense Rainfall in the United Kingdom Nature Precedings
John C. Rodda; Max A. Little; Harvey J. E. Rodda; Patrick E. McSharry.
During the 1960s, a study was made of the magnitude, frequency and distribution of intense rainfall over the UK, employing data from more than 120 daily-read rain gauges covering the period 1911 to 1960. Using the same methodology, that study was recently updated utilizing data for the period 1961 to 2006 for the same gauges, or from those nearby. This paper describes the techniques applied to ensure consistency of data and statistical modelling. It presents a comparison of patterns of extreme rainfalls for the two periods and discusses the changes that have taken place. Most noticeably, increases up to 20% have occurred in the north west of the country and in parts of East Anglia. There have also been changes in other areas, including decreases of the...
Tipo: Manuscript Palavras-chave: Earth & Environment.
Ano: 2009 URL: http://precedings.nature.com/documents/3847/version/1
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A Comparative Study of Variation of the Pterion of Human Skulls from 13th and 20th Century Anatolia International Journal of Morphology
Ilknur,Ari; Mustafa,Kafa Ilker; Sinan,Bakirci.
The pterion is a commonly used anthropologic and neurosurgical landmark defined as the junction of the sphenoid, temporal, parietal and frontal bones. It is commonly classified into four types based on sutural pattern: sphenoparietal, in which the sphenoid and parietal bones are in direct contact; frontotemporal, in which the frontal and temporal bones are in direct contact; stellate, in which all four bones come into contact at a point; and epipteric, in which a small sutural bone is found between the parietal bone and the greater wing of the sphenoid bone. In the present study, 44 Anatolian skulls from two different eras, Byzantine (13th century) and contemporary (20th century), were investigated for morphology and location of the pterion. Sphenoparietal...
Tipo: Journal article Palavras-chave: Anatolian; Anthropology; Calvarial sutures; Epipteric bone; Morphometry.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000400051
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A Comparison between Perception of Risk and Willingness to Serve Genetically Modified Foods AgEcon
Nganje, William E.; Wachenheim, Cheryl J.; Lesch, William C..
The dichotomy between perceptions of the acceptability of risk associated with genetically modified (GM) foods and willingness to consume GM foods is investigated. Results indicate that some consumers are willing to consume GM foods even though they may perceive such foods as somewhat unsafe, with determinants such as self-perceived knowledge about the availability of GM foods and altruistic motives having positive and significant effects on their consumption decisions. Efforts toward decreasing perception of risk and ultimately increasing acceptance of and demand for GM foods should address issues related to their altruistic characteristics and outrage.
Tipo: Journal Article Palavras-chave: Consumer/Household Economics; Risk and Uncertainty.
Ano: 2009 URL: http://purl.umn.edu/99792
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A Comparison of Actual and Hypothetical Willingness to Pay of Parents and Non-Parents for Protecting Infant Health: The Case of Nitrates in Drinking Water AgEcon
Loomis, John B.; Bell, Paul; Cooney, Helen; Asmus, Cheryl.
We estimate adults’ willingness to pay (WTP) to reduce health risks to their own or other families’ infants to test for altruism. A conjoint analysis of adults paying for bottled water found marginal WTP for reduction in risk of shock, brain damage, and mortality in the cash treatment of $2, $3.70, and $9.43, respectively. In the hypothetical market these amounts were $14, $26, and $66, indicating substantial hypothetical bias, although not unexpected due to the topic of infant health. Statistical tests confirm a high degree of altruism in our WTP results, and altruism held even when real money was involved.
Tipo: Journal Article Palavras-chave: Altruism; Conjoint; Drinking water; Nitrates; Validity; Willingness to pay; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Institutional and Behavioral Economics; I10; Q53.
Ano: 2009 URL: http://purl.umn.edu/56657
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A Comparison of Approaches to Mitigate Hypothetical Bias AgEcon
Champ, Patricia A.; Moore, Rebecca; Bishop, Richard C..
We compare two approaches to mitigating hypothetical bias. The study design includes three treatments: an actual payment treatment, a contingent valuation (CV) treatment with a follow-up certainty question, and a CV treatment with a cheap talk script. Our results suggest that both the follow-up certainty treatment and the cheap talk treatment produce willingness-to-pay (WTP) estimates consistent with the actual payment treatment. However, the follow-up certainty treatment provides response distributions at all offer amounts that are statistically similar to the actual payment treatment, while the cheap talk treatment provides similar responses only at some offer amounts. Furthermore, the cheap talk treatment is effective only for inexperienced individuals....
Tipo: Journal Article Palavras-chave: Contingent valuation; Hypothetical bias; Follow-up certainty; Cheap talk; Nonmarket valuation; Environmental Economics and Policy; Public Economics; Research Methods/ Statistical Methods.
Ano: 2009 URL: http://purl.umn.edu/55867
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