Capacity expansion under uncertainty in an oligopoly using indirect reinforcement-learning.

We model capacity expansion in oligopolistic markets, with endogenous prices, under uncertainty, considering multiple production technologies. As this environment is complex, capacity expansion is the outcome of a learning process by individual firms. We propose indirect reinforcement-learning to model the interaction between price determination and capacity decisions, in the context of an oligopoly game. We apply our model to the analysis of the Iberian electricity market, considering multiple technologies, focusing on how subsidies, the prices of CO2 emissions and gas affect the capacity expansion policies

Electron Scattering From Molecules: Applications Of The Schwinger Multichannel Method To E--co And E--c2h 4 Collisions

To illustrate our recent efforts to obtain electronic excitation cross sections of molecules by electron impact, we present in this paper results for the X 1Σ a 3Π and A 1Π transitions of CO obtained with the Schwinger multichannel method. Our results are in good agreement with other theoretical calculations, although not so good when compared with experiments. We also discuss the importance of inclusion of polarization effects to obtain electronic excitation cross sections of some molecules through an example using the C2H4 molecule, which has a triplet state with a low-energy threshold. Finally, we present a very simple rule to estimate integral electronic excitation cross sections using the differential cross section (DCS) at 900, which can be useful to experimentalists using apparatus with difficulties to measure the DCS's at angles around 0 and 180 degrees. We show its efficiency for the present electronic excitation of the C2H4 molecule by electron impact. © 2007 IOP Publishing Ltd.881Garscadden, A., (1992) Z. Phys., 24 (2), pp. 97-99Boudaïffa, B., Cloutier, P., Hunting, D., Huels, M.A., Sanche, L., (2000) Science, 287 (5458), pp. 1658-1660Da Costa, R.F., Da Paixão, F.J., Map, L., (2004) J. Phys. B: At. Mol. Phys., 37 (6), pp. 129-L135Da Costa, R.F., Da Paixão, F.J., Map, L., (2005) J. Phys. B: At. Mol. Phys., 38 (24), pp. 4363-4378Da Costa, R.F., Map, L., (2006) Int. J. Quantum Chem., 106 (13), pp. 2664-2676Nonum Da Costa, R.F., Map, L., (2007) Phys. Rev., 75, p. 022705Sun, Q., Winstead, C., McKoy, V., Lima, M.A.P., (1992) J. Chem. Phys., 96 (5), pp. 3531-3535Rescigno, T.N., Schneider, B.I., (1992) Phys. Rev., 45 (5), pp. 2894-2902Takatsuka, K., McKoy, V., (1981) Phys. Rev., 24 (5), pp. 2473-2480Takatsuka, K., McKoy, V., (1984) Phys. Rev., 30 (4), pp. 1734-1740Chaudhuri, P., Varella Do, T.M.N., Carvalho, C.R.C., Map, L., (2004) Nucl. Instrum. Methods Phys. Res., 221, pp. 69-75Chaudhuri, P., Varella Do, T.M.N., Carvalho, C.R.C., Map, L., (2004) Phys. Rev., 69, p. 042703Lane, N.F., (1980) Rev. Mod. Phys., 52 (1), pp. 29-119Sun, Q.Y., Winstead, C., McKoy, V., (1992) Phys. Rev., 46 (11), pp. 6987-6994Morgan, L.A., Tennyson, J., (1993) J. Phys. B: At. Mol. Opt. Phys., 26 (15), pp. 2429-2441Lee, M.-T., MacHado, A.M., Fujimoto, M.M., MacHado, L.E., Brescansin, L.M., (1996) J. Phys. B: At. Mol. Opt. Phys., 29 (18), pp. 4285-4301Furlong, J.M., Newell, W.R., (1996) J. Phys. B: At. Mol. Opt. Phys., 29 (2), pp. 331-338Leclair, L.R., Trajmar, S., (1996) J. Phys. B: At. Mol. Opt. Phys., 29 (22), pp. 5543-5566Zetner, P.W., Kanik, I., Trajmar, S., (1998) J. Phys. B: At. Mol. Opt. Phys., 31 (10), pp. 2395-2413Trajmar, S., Szabo, A., Ostlund, N.S., (1989) Modern Quantum Chemistry: Introduction to Advanced Electronic Structure Theory, pp. 194-197Da Costa, R.F., Bettega, M.H.F., Lima, M.A.P., Van Veen, E.H., (1976) Chem. Phys. Lett., 41 (3), p. 540Asmis, K.R., Allan, M., (1997) J. Chem. Phys., 106 (17), pp. 7044-7046Da Costa, R.F., Bettega, M.H.F., Lima, M.A.P., Da Costa, R.F., Bettega, M.H.F., Lima, M.A.P.

Direito eleitoral: estudos em homenagem ao desembargador Mathias Coltro

Divulgação dos SUMÁRIOS das obras recentemente incorporadas ao acervo da Biblioteca Ministro Oscar Saraiva do STJ. Em respeito à Lei de Direitos Autorais, não disponibilizamos a obra na íntegra.Localização na estante: 342.8 D598eCoordenado por: L.G. Costa Wagner e Petronio Calmon

Increasing genetic variability in black oats using gamma irradiation

The black oat (Avena strigosa Schreb) is commonly used for forage, soil cover, and green manure. Despite its importance, little improvement has been made to this species, leading to high levels of genotypic disuniformity within commercial cultivars. The objective of this study was to evaluate the efficiency of different doses of gamma rays [ ^60 Co] applied to black oat seeds on the increase of genetic variability of agronomic traits. We applied doses of 0, 10, 50, 100, and 200 Gy to the genotype ALPHA 94087 through exposure to [ ^60 Co]. Two experiments were conducted in the winter of 2008. The first aimed to test forage trait measurements such as plant height, dry matter yield, number of surviving tillers, and seedling stand. The second test assessed seed traits, such as yield and dormancy levels. Gamma irradiation seems not to increase seed yield in black oats, but it was effective in generating variability for the other traits. Tiller number and plant height are important selection traits to increase dry matter yield. Selection in advanced generations of mutant populations can increase the probability of identifying superior genotypes

Expression-based and co-localization detection of arabinogalactan protein 6 and arabinogalactan protein 11 interactors in Arabidopsis pollen and pollen tubes

Abstract Background Arabinogalactan proteins (AGPs) are cell wall proteoglycans that have been shown to be important for pollen development. An Arabidopsis double null mutant for two pollen-specific AGPs (agp6 agp11) showed reduced pollen tube growth and compromised response to germination cues in vivo. A microarray experiment was performed on agp6 agp11 pollen tubes to search for genetic interactions in the context of pollen tube growth. A yeast two-hybrid experiment for AGP6 and AGP11 was also designed. Results The lack of two specific AGPs induced a meaningful shift in the gene expression profile. In fact, a high number of genes showed altered expression levels, strengthening the case that AGP6 and AGP11 are involved in complex phenomena. The expression levels of calcium- and signaling-related genes were found to be altered, supporting the known roles of the respective proteins in pollen tube growth. Although the precise nature of the proposed interactions needs further investigation, the putative involvement of AGPs in signaling cascades through calmodulin and protein degradation via ubiquitin was indicated. The expression of stress-, as well as signaling- related, genes was also changed; a correlation that may result from the recognized similarities between signaling pathways in both defense and pollen tube growth. The results of yeast two-hybrid experiments lent further support to these signaling pathways and revealed putative AGP6 and AGP11 interactors implicated in recycling of cell membrane components via endocytosis, through clathrin-mediated endosomes and multivesicular bodies. Conclusions The data presented suggest the involvement of AGP6 and AGP11 in multiple signaling pathways, in particular those involved in developmental processes such as endocytosis-mediated plasma membrane remodeling during Arabidopsis pollen development. This highlights the importance of endosomal trafficking pathways which are rapidly emerging as fundamental regulators of the wall physiology

Antioxidant, photoprotective and inhibitory activity of tyrosinase in extracts of Dalbergia ecastaphyllum

Dalbergia ecastaphyllum is a native Brazil plant with importance for beekeeping, and widely used in folk medicine. For the first time, the extracts of this plant were assessed for the presence of hydrophilic and lipophilic antioxidants, as well as inhibition of tyrosinase, free radicals scavenging and sunscreen protection. The antioxidant activity was evaluated by free radical scavenging (DPPH) andβ-carotene bleaching assay. The tyrosinase inhibitory activity was evaluated and calculated the EC50. The photoprotective activity was measured using different concentrations of D. ecastaphyllum extracts. The Sun Protection Factor (SPF) of the samples was higher than 6, and the sample from Ilhe ´us showed the most pronounced photoprotective effect. Sample from Canavieiras presented the highest antioxidant activity by free radical scavenging DPPH andβ-carotene bleaching method, with 92.41% and 48.34%, respectively. All samples inhibited the tyrosinase, especially the sample from Prado that was most effective (124.62μg.mL-1). Significant negative correlation was found between flavonoid contents and inhibition of tyrosinase. The overall results provide relevant information about the Dalbergia ecastaphyllum species, indicating as potential material to cosmetic and pharmaceutical industry.We thank MSc Vandira Pereira da Mata for the support during the sample collectioninfo:eu-repo/semantics/publishedVersio

Complete genome sequence of Campylobacter fetus isolated from a sheep

Campylobacter fetusis an important reproductive pathogen of ruminantsthat occasionally infects humans. Here, we describe the complete circularized genomeof a strain ofCampylobacter fetussubsp.fetusisolated from a sheep. Thefinal assem-bly consisted of a unique contig with a length of 1,849,237 bp

Hypospadias in two cats - case report

ABSTRACT Hypospadias is an uncommon sexual development disorder in cats, in which the urethral opening is not in its anatomical location on the penis. The purpose of this report is to describe two cases of hypospadias in the feline species. The first cat was asymptomatic, had a history of bacterial cystitis, and was diagnosed with perineal hypospadias at an appointment for preoperative evaluation of orchiectomy. The second cat had clinical signs of dysuria and pollakiuria for 30 days and had glandular hypospadias. Both cats showed abnormalities in the urinalysis which were suggestive of lower urinary tract disease. For both cases, clinical treatment with antibiotic therapy was performed. In the first patient, surgical treatment consisted of orchiectomy, while in the second animal a perineal urethrostomy and orchiectomy were performed. The cats had a satisfactory recovery after the treatments. Performing a thorough physical examination is essential to diagnose cases of hypospadias and choose the best treatment for each patient